Initial commit

1 files changed, 38728 insertions, 0 deletions

diff --git a/macros/luatex/generic/luaotfload/fontloader-reference.lua b/macros/luatex/generic/luaotfload/fontloader-reference.lua
new file mode 100644
index 0000000000..3120f45135
--- /dev/null
+++ b/macros/luatex/generic/luaotfload/fontloader-reference.lua
@@ -0,0 +1,38728 @@
+-- merged file : c:/data/develop/context/sources/luatex-fonts-merged.lua
+-- parent file : c:/data/develop/context/sources/luatex-fonts.lua
+-- merge date  : 08/11/19 20:03:46
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-lua']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local next,type,tonumber=next,type,tonumber
+LUAMAJORVERSION,LUAMINORVERSION=string.match(_VERSION,"^[^%d]+(%d+)%.(%d+).*$")
+LUAMAJORVERSION=tonumber(LUAMAJORVERSION) or 5
+LUAMINORVERSION=tonumber(LUAMINORVERSION) or 1
+LUAVERSION=LUAMAJORVERSION+LUAMINORVERSION/10
+if LUAVERSION<5.2 and jit then
+ MINORVERSION=2
+ LUAVERSION=5.2
+end
+if not lpeg then
+ lpeg=require("lpeg")
+end
+if loadstring then
+ local loadnormal=load
+ function load(first,...)
+  if type(first)=="string" then
+   return loadstring(first,...)
+  else
+   return loadnormal(first,...)
+  end
+ end
+else
+ loadstring=load
+end
+if not ipairs then
+ local function iterate(a,i)
+  i=i+1
+  local v=a[i]
+  if v~=nil then
+   return i,v 
+  end
+ end
+ function ipairs(a)
+  return iterate,a,0
+ end
+end
+if not pairs then
+ function pairs(t)
+  return next,t 
+ end
+end
+if not table.unpack then
+ table.unpack=_G.unpack
+elseif not unpack then
+ _G.unpack=table.unpack
+end
+if not package.loaders then 
+ package.loaders=package.searchers
+end
+local print,select,tostring=print,select,tostring
+local inspectors={}
+function setinspector(kind,inspector) 
+ inspectors[kind]=inspector
+end
+function inspect(...) 
+ for s=1,select("#",...) do
+  local value=select(s,...)
+  if value==nil then
+   print("nil")
+  else
+   local done=false
+   local kind=type(value)
+   local inspector=inspectors[kind]
+   if inspector then
+    done=inspector(value)
+    if done then
+     break
+    end
+   end
+   for kind,inspector in next,inspectors do
+    done=inspector(value)
+    if done then
+     break
+    end
+   end
+   if not done then
+    print(tostring(value))
+   end
+  end
+ end
+end
+local dummy=function() end
+function optionalrequire(...)
+ local ok,result=xpcall(require,dummy,...)
+ if ok then
+  return result
+ end
+end
+if lua then
+ lua.mask=load([[τεχ = 1]]) and "utf" or "ascii"
+end
+local flush=io.flush
+if flush then
+ local execute=os.execute if execute then function os.execute(...) flush() return execute(...) end end
+ local exec=os.exec if exec then function os.exec   (...) flush() return exec   (...) end end
+ local spawn=os.spawn   if spawn   then function os.spawn  (...) flush() return spawn  (...) end end
+ local popen=io.popen   if popen   then function io.popen  (...) flush() return popen  (...) end end
+end
+FFISUPPORTED=type(ffi)=="table" and ffi.os~="" and ffi.arch~="" and ffi.load
+if not FFISUPPORTED then
+ local okay;okay,ffi=pcall(require,"ffi")
+ FFISUPPORTED=type(ffi)=="table" and ffi.os~="" and ffi.arch~="" and ffi.load
+end
+if not FFISUPPORTED then
+ ffi=nil
+elseif not ffi.number then
+ ffi.number=tonumber
+end
+if LUAVERSION>5.3 then
+end
+if status and os.setenv then
+ os.setenv("engine",string.lower(status.luatex_engine or "unknown"))
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-lpeg']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+lpeg=require("lpeg") 
+local lpeg=lpeg
+if not lpeg.print then function lpeg.print(...) print(lpeg.pcode(...)) end end
+local type,next,tostring=type,next,tostring
+local byte,char,gmatch,format=string.byte,string.char,string.gmatch,string.format
+local floor=math.floor
+local P,R,S,V,Ct,C,Cs,Cc,Cp,Cmt=lpeg.P,lpeg.R,lpeg.S,lpeg.V,lpeg.Ct,lpeg.C,lpeg.Cs,lpeg.Cc,lpeg.Cp,lpeg.Cmt
+local lpegtype,lpegmatch,lpegprint=lpeg.type,lpeg.match,lpeg.print
+if setinspector then
+ setinspector("lpeg",function(v) if lpegtype(v) then lpegprint(v) return true end end)
+end
+lpeg.patterns=lpeg.patterns or {} 
+local patterns=lpeg.patterns
+local anything=P(1)
+local endofstring=P(-1)
+local alwaysmatched=P(true)
+patterns.anything=anything
+patterns.endofstring=endofstring
+patterns.beginofstring=alwaysmatched
+patterns.alwaysmatched=alwaysmatched
+local sign=S('+-')
+local zero=P('0')
+local digit=R('09')
+local digits=digit^1
+local octdigit=R("07")
+local octdigits=octdigit^1
+local lowercase=R("az")
+local uppercase=R("AZ")
+local underscore=P("_")
+local hexdigit=digit+lowercase+uppercase
+local hexdigits=hexdigit^1
+local cr,lf,crlf=P("\r"),P("\n"),P("\r\n")
+local newline=P("\r")*(P("\n")+P(true))+P("\n")  
+local escaped=P("\\")*anything
+local squote=P("'")
+local dquote=P('"')
+local space=P(" ")
+local period=P(".")
+local comma=P(",")
+local utfbom_32_be=P('\000\000\254\255') 
+local utfbom_32_le=P('\255\254\000\000') 
+local utfbom_16_be=P('\254\255')   
+local utfbom_16_le=P('\255\254')   
+local utfbom_8=P('\239\187\191')  
+local utfbom=utfbom_32_be+utfbom_32_le+utfbom_16_be+utfbom_16_le+utfbom_8
+local utftype=utfbom_32_be*Cc("utf-32-be")+utfbom_32_le*Cc("utf-32-le")+utfbom_16_be*Cc("utf-16-be")+utfbom_16_le*Cc("utf-16-le")+utfbom_8*Cc("utf-8")+alwaysmatched*Cc("utf-8") 
+local utfstricttype=utfbom_32_be*Cc("utf-32-be")+utfbom_32_le*Cc("utf-32-le")+utfbom_16_be*Cc("utf-16-be")+utfbom_16_le*Cc("utf-16-le")+utfbom_8*Cc("utf-8")
+local utfoffset=utfbom_32_be*Cc(4)+utfbom_32_le*Cc(4)+utfbom_16_be*Cc(2)+utfbom_16_le*Cc(2)+utfbom_8*Cc(3)+Cc(0)
+local utf8next=R("\128\191")
+patterns.utfbom_32_be=utfbom_32_be
+patterns.utfbom_32_le=utfbom_32_le
+patterns.utfbom_16_be=utfbom_16_be
+patterns.utfbom_16_le=utfbom_16_le
+patterns.utfbom_8=utfbom_8
+patterns.utf_16_be_nl=P("\000\r\000\n")+P("\000\r")+P("\000\n") 
+patterns.utf_16_le_nl=P("\r\000\n\000")+P("\r\000")+P("\n\000") 
+patterns.utf_32_be_nl=P("\000\000\000\r\000\000\000\n")+P("\000\000\000\r")+P("\000\000\000\n")
+patterns.utf_32_le_nl=P("\r\000\000\000\n\000\000\000")+P("\r\000\000\000")+P("\n\000\000\000")
+patterns.utf8one=R("\000\127")
+patterns.utf8two=R("\194\223")*utf8next
+patterns.utf8three=R("\224\239")*utf8next*utf8next
+patterns.utf8four=R("\240\244")*utf8next*utf8next*utf8next
+patterns.utfbom=utfbom
+patterns.utftype=utftype
+patterns.utfstricttype=utfstricttype
+patterns.utfoffset=utfoffset
+local utf8char=patterns.utf8one+patterns.utf8two+patterns.utf8three+patterns.utf8four
+local validutf8char=utf8char^0*endofstring*Cc(true)+Cc(false)
+local utf8character=P(1)*R("\128\191")^0 
+patterns.utf8=utf8char
+patterns.utf8char=utf8char
+patterns.utf8character=utf8character 
+patterns.validutf8=validutf8char
+patterns.validutf8char=validutf8char
+local eol=S("\n\r")
+local spacer=S(" \t\f\v")  
+local whitespace=eol+spacer
+local nonspacer=1-spacer
+local nonwhitespace=1-whitespace
+patterns.eol=eol
+patterns.spacer=spacer
+patterns.whitespace=whitespace
+patterns.nonspacer=nonspacer
+patterns.nonwhitespace=nonwhitespace
+local stripper=spacer^0*C((spacer^0*nonspacer^1)^0)  
+local fullstripper=whitespace^0*C((whitespace^0*nonwhitespace^1)^0)
+local collapser=Cs(spacer^0/""*nonspacer^0*((spacer^0/" "*nonspacer^1)^0))
+local nospacer=Cs((whitespace^1/""+nonwhitespace^1)^0)
+local b_collapser=Cs(whitespace^0/""*(nonwhitespace^1+whitespace^1/" ")^0)
+local e_collapser=Cs((whitespace^1*endofstring/""+nonwhitespace^1+whitespace^1/" ")^0)
+local m_collapser=Cs((nonwhitespace^1+whitespace^1/" ")^0)
+local b_stripper=Cs(spacer^0/""*(nonspacer^1+spacer^1/" ")^0)
+local e_stripper=Cs((spacer^1*endofstring/""+nonspacer^1+spacer^1/" ")^0)
+local m_stripper=Cs((nonspacer^1+spacer^1/" ")^0)
+patterns.stripper=stripper
+patterns.fullstripper=fullstripper
+patterns.collapser=collapser
+patterns.nospacer=nospacer
+patterns.b_collapser=b_collapser
+patterns.m_collapser=m_collapser
+patterns.e_collapser=e_collapser
+patterns.b_stripper=b_stripper
+patterns.m_stripper=m_stripper
+patterns.e_stripper=e_stripper
+patterns.lowercase=lowercase
+patterns.uppercase=uppercase
+patterns.letter=patterns.lowercase+patterns.uppercase
+patterns.space=space
+patterns.tab=P("\t")
+patterns.spaceortab=patterns.space+patterns.tab
+patterns.newline=newline
+patterns.emptyline=newline^1
+patterns.equal=P("=")
+patterns.comma=comma
+patterns.commaspacer=comma*spacer^0
+patterns.period=period
+patterns.colon=P(":")
+patterns.semicolon=P(";")
+patterns.underscore=underscore
+patterns.escaped=escaped
+patterns.squote=squote
+patterns.dquote=dquote
+patterns.nosquote=(escaped+(1-squote))^0
+patterns.nodquote=(escaped+(1-dquote))^0
+patterns.unsingle=(squote/"")*patterns.nosquote*(squote/"") 
+patterns.undouble=(dquote/"")*patterns.nodquote*(dquote/"") 
+patterns.unquoted=patterns.undouble+patterns.unsingle 
+patterns.unspacer=((patterns.spacer^1)/"")^0
+patterns.singlequoted=squote*patterns.nosquote*squote
+patterns.doublequoted=dquote*patterns.nodquote*dquote
+patterns.quoted=patterns.doublequoted+patterns.singlequoted
+patterns.digit=digit
+patterns.digits=digits
+patterns.octdigit=octdigit
+patterns.octdigits=octdigits
+patterns.hexdigit=hexdigit
+patterns.hexdigits=hexdigits
+patterns.sign=sign
+patterns.cardinal=digits
+patterns.integer=sign^-1*digits
+patterns.unsigned=digit^0*period*digits
+patterns.float=sign^-1*patterns.unsigned
+patterns.cunsigned=digit^0*comma*digits
+patterns.cpunsigned=digit^0*(period+comma)*digits
+patterns.cfloat=sign^-1*patterns.cunsigned
+patterns.cpfloat=sign^-1*patterns.cpunsigned
+patterns.number=patterns.float+patterns.integer
+patterns.cnumber=patterns.cfloat+patterns.integer
+patterns.cpnumber=patterns.cpfloat+patterns.integer
+patterns.oct=zero*octdigits 
+patterns.octal=patterns.oct
+patterns.HEX=zero*P("X")*(digit+uppercase)^1
+patterns.hex=zero*P("x")*(digit+lowercase)^1
+patterns.hexadecimal=zero*S("xX")*hexdigits
+patterns.hexafloat=sign^-1*zero*S("xX")*(hexdigit^0*period*hexdigits+hexdigits*period*hexdigit^0+hexdigits)*(S("pP")*sign^-1*hexdigits)^-1
+patterns.decafloat=sign^-1*(digit^0*period*digits+digits*period*digit^0+digits)*S("eE")*sign^-1*digits
+patterns.propername=(uppercase+lowercase+underscore)*(uppercase+lowercase+underscore+digit)^0*endofstring
+patterns.somecontent=(anything-newline-space)^1 
+patterns.beginline=#(1-newline)
+patterns.longtostring=Cs(whitespace^0/""*((patterns.quoted+nonwhitespace^1+whitespace^1/""*(endofstring+Cc(" ")))^0))
+function anywhere(pattern) 
+ return (1-P(pattern))^0*P(pattern)
+end
+lpeg.anywhere=anywhere
+function lpeg.instringchecker(p)
+ p=anywhere(p)
+ return function(str)
+  return lpegmatch(p,str) and true or false
+ end
+end
+function lpeg.splitter(pattern,action)
+ if action then
+  return (((1-P(pattern))^1)/action+1)^0
+ else
+  return (Cs((1-P(pattern))^1)+1)^0
+ end
+end
+function lpeg.tsplitter(pattern,action)
+ if action then
+  return Ct((((1-P(pattern))^1)/action+1)^0)
+ else
+  return Ct((Cs((1-P(pattern))^1)+1)^0)
+ end
+end
+local splitters_s,splitters_m,splitters_t={},{},{}
+local function splitat(separator,single)
+ local splitter=(single and splitters_s[separator]) or splitters_m[separator]
+ if not splitter then
+  separator=P(separator)
+  local other=C((1-separator)^0)
+  if single then
+   local any=anything
+   splitter=other*(separator*C(any^0)+"") 
+   splitters_s[separator]=splitter
+  else
+   splitter=other*(separator*other)^0
+   splitters_m[separator]=splitter
+  end
+ end
+ return splitter
+end
+local function tsplitat(separator)
+ local splitter=splitters_t[separator]
+ if not splitter then
+  splitter=Ct(splitat(separator))
+  splitters_t[separator]=splitter
+ end
+ return splitter
+end
+lpeg.splitat=splitat
+lpeg.tsplitat=tsplitat
+function string.splitup(str,separator)
+ if not separator then
+  separator=","
+ end
+ return lpegmatch(splitters_m[separator] or splitat(separator),str)
+end
+local cache={}
+function lpeg.split(separator,str)
+ local c=cache[separator]
+ if not c then
+  c=tsplitat(separator)
+  cache[separator]=c
+ end
+ return lpegmatch(c,str)
+end
+function string.split(str,separator)
+ if separator then
+  local c=cache[separator]
+  if not c then
+   c=tsplitat(separator)
+   cache[separator]=c
+  end
+  return lpegmatch(c,str)
+ else
+  return { str }
+ end
+end
+local spacing=patterns.spacer^0*newline 
+local empty=spacing*Cc("")
+local nonempty=Cs((1-spacing)^1)*spacing^-1
+local content=(empty+nonempty)^1
+patterns.textline=content
+local linesplitter=tsplitat(newline)
+patterns.linesplitter=linesplitter
+function string.splitlines(str)
+ return lpegmatch(linesplitter,str)
+end
+local cache={}
+function lpeg.checkedsplit(separator,str)
+ local c=cache[separator]
+ if not c then
+  separator=P(separator)
+  local other=C((1-separator)^1)
+  c=Ct(separator^0*other*(separator^1*other)^0)
+  cache[separator]=c
+ end
+ return lpegmatch(c,str)
+end
+function string.checkedsplit(str,separator)
+ local c=cache[separator]
+ if not c then
+  separator=P(separator)
+  local other=C((1-separator)^1)
+  c=Ct(separator^0*other*(separator^1*other)^0)
+  cache[separator]=c
+ end
+ return lpegmatch(c,str)
+end
+local function f2(s) local c1,c2=byte(s,1,2) return   c1*64+c2-12416 end
+local function f3(s) local c1,c2,c3=byte(s,1,3) return  (c1*64+c2)*64+c3-925824 end
+local function f4(s) local c1,c2,c3,c4=byte(s,1,4) return ((c1*64+c2)*64+c3)*64+c4-63447168 end
+local utf8byte=patterns.utf8one/byte+patterns.utf8two/f2+patterns.utf8three/f3+patterns.utf8four/f4
+patterns.utf8byte=utf8byte
+local cache={}
+function lpeg.stripper(str)
+ if type(str)=="string" then
+  local s=cache[str]
+  if not s then
+   s=Cs(((S(str)^1)/""+1)^0)
+   cache[str]=s
+  end
+  return s
+ else
+  return Cs(((str^1)/""+1)^0)
+ end
+end
+local cache={}
+function lpeg.keeper(str)
+ if type(str)=="string" then
+  local s=cache[str]
+  if not s then
+   s=Cs((((1-S(str))^1)/""+1)^0)
+   cache[str]=s
+  end
+  return s
+ else
+  return Cs((((1-str)^1)/""+1)^0)
+ end
+end
+function lpeg.frontstripper(str) 
+ return (P(str)+P(true))*Cs(anything^0)
+end
+function lpeg.endstripper(str) 
+ return Cs((1-P(str)*endofstring)^0)
+end
+function lpeg.replacer(one,two,makefunction,isutf) 
+ local pattern
+ local u=isutf and utf8char or 1
+ if type(one)=="table" then
+  local no=#one
+  local p=P(false)
+  if no==0 then
+   for k,v in next,one do
+    p=p+P(k)/v
+   end
+   pattern=Cs((p+u)^0)
+  elseif no==1 then
+   local o=one[1]
+   one,two=P(o[1]),o[2]
+   pattern=Cs((one/two+u)^0)
+  else
+   for i=1,no do
+    local o=one[i]
+    p=p+P(o[1])/o[2]
+   end
+   pattern=Cs((p+u)^0)
+  end
+ else
+  pattern=Cs((P(one)/(two or "")+u)^0)
+ end
+ if makefunction then
+  return function(str)
+   return lpegmatch(pattern,str)
+  end
+ else
+  return pattern
+ end
+end
+function lpeg.finder(lst,makefunction,isutf) 
+ local pattern
+ if type(lst)=="table" then
+  pattern=P(false)
+  if #lst==0 then
+   for k,v in next,lst do
+    pattern=pattern+P(k) 
+   end
+  else
+   for i=1,#lst do
+    pattern=pattern+P(lst[i])
+   end
+  end
+ else
+  pattern=P(lst)
+ end
+ if isutf then
+  pattern=((utf8char or 1)-pattern)^0*pattern
+ else
+  pattern=(1-pattern)^0*pattern
+ end
+ if makefunction then
+  return function(str)
+   return lpegmatch(pattern,str)
+  end
+ else
+  return pattern
+ end
+end
+local splitters_f,splitters_s={},{}
+function lpeg.firstofsplit(separator) 
+ local splitter=splitters_f[separator]
+ if not splitter then
+  local pattern=P(separator)
+  splitter=C((1-pattern)^0)
+  splitters_f[separator]=splitter
+ end
+ return splitter
+end
+function lpeg.secondofsplit(separator) 
+ local splitter=splitters_s[separator]
+ if not splitter then
+  local pattern=P(separator)
+  splitter=(1-pattern)^0*pattern*C(anything^0)
+  splitters_s[separator]=splitter
+ end
+ return splitter
+end
+local splitters_s,splitters_p={},{}
+function lpeg.beforesuffix(separator) 
+ local splitter=splitters_s[separator]
+ if not splitter then
+  local pattern=P(separator)
+  splitter=C((1-pattern)^0)*pattern*endofstring
+  splitters_s[separator]=splitter
+ end
+ return splitter
+end
+function lpeg.afterprefix(separator) 
+ local splitter=splitters_p[separator]
+ if not splitter then
+  local pattern=P(separator)
+  splitter=pattern*C(anything^0)
+  splitters_p[separator]=splitter
+ end
+ return splitter
+end
+function lpeg.balancer(left,right)
+ left,right=P(left),P(right)
+ return P { left*((1-left-right)+V(1))^0*right }
+end
+function lpeg.counter(pattern,action)
+ local n=0
+ local pattern=(P(pattern)/function() n=n+1 end+anything)^0
+ if action then
+  return function(str) n=0;lpegmatch(pattern,str);action(n) end
+ else
+  return function(str) n=0;lpegmatch(pattern,str);return n end
+ end
+end
+function lpeg.is_lpeg(p)
+ return p and lpegtype(p)=="pattern"
+end
+function lpeg.oneof(list,...) 
+ if type(list)~="table" then
+  list={ list,... }
+ end
+ local p=P(list[1])
+ for l=2,#list do
+  p=p+P(list[l])
+ end
+ return p
+end
+local sort=table.sort
+local function copyindexed(old)
+ local new={}
+ for i=1,#old do
+  new[i]=old
+ end
+ return new
+end
+local function sortedkeys(tab)
+ local keys,s={},0
+ for key,_ in next,tab do
+  s=s+1
+  keys[s]=key
+ end
+ sort(keys)
+ return keys
+end
+function lpeg.append(list,pp,delayed,checked)
+ local p=pp
+ if #list>0 then
+  local keys=copyindexed(list)
+  sort(keys)
+  for i=#keys,1,-1 do
+   local k=keys[i]
+   if p then
+    p=P(k)+p
+   else
+    p=P(k)
+   end
+  end
+ elseif delayed then 
+  local keys=sortedkeys(list)
+  if p then
+   for i=1,#keys,1 do
+    local k=keys[i]
+    local v=list[k]
+    p=P(k)/list+p
+   end
+  else
+   for i=1,#keys do
+    local k=keys[i]
+    local v=list[k]
+    if p then
+     p=P(k)+p
+    else
+     p=P(k)
+    end
+   end
+   if p then
+    p=p/list
+   end
+  end
+ elseif checked then
+  local keys=sortedkeys(list)
+  for i=1,#keys do
+   local k=keys[i]
+   local v=list[k]
+   if p then
+    if k==v then
+     p=P(k)+p
+    else
+     p=P(k)/v+p
+    end
+   else
+    if k==v then
+     p=P(k)
+    else
+     p=P(k)/v
+    end
+   end
+  end
+ else
+  local keys=sortedkeys(list)
+  for i=1,#keys do
+   local k=keys[i]
+   local v=list[k]
+   if p then
+    p=P(k)/v+p
+   else
+    p=P(k)/v
+   end
+  end
+ end
+ return p
+end
+local p_false=P(false)
+local p_true=P(true)
+local lower=utf and utf.lower or string.lower
+local upper=utf and utf.upper or string.upper
+function lpeg.setutfcasers(l,u)
+ lower=l or lower
+ upper=u or upper
+end
+local function make1(t,rest)
+ local p=p_false
+ local keys=sortedkeys(t)
+ for i=1,#keys do
+  local k=keys[i]
+  if k~="" then
+   local v=t[k]
+   if v==true then
+    p=p+P(k)*p_true
+   elseif v==false then
+   else
+    p=p+P(k)*make1(v,v[""])
+   end
+  end
+ end
+ if rest then
+  p=p+p_true
+ end
+ return p
+end
+local function make2(t,rest) 
+ local p=p_false
+ local keys=sortedkeys(t)
+ for i=1,#keys do
+  local k=keys[i]
+  if k~="" then
+   local v=t[k]
+   if v==true then
+    p=p+(P(lower(k))+P(upper(k)))*p_true
+   elseif v==false then
+   else
+    p=p+(P(lower(k))+P(upper(k)))*make2(v,v[""])
+   end
+  end
+ end
+ if rest then
+  p=p+p_true
+ end
+ return p
+end
+local function utfchartabletopattern(list,insensitive) 
+ local tree={}
+ local n=#list
+ if n==0 then
+  for s in next,list do
+   local t=tree
+   local p,pk
+   for c in gmatch(s,".") do
+    if t==true then
+     t={ [c]=true,[""]=true }
+     p[pk]=t
+     p=t
+     t=false
+    elseif t==false then
+     t={ [c]=false }
+     p[pk]=t
+     p=t
+     t=false
+    else
+     local tc=t[c]
+     if not tc then
+      tc=false
+      t[c]=false
+     end
+     p=t
+     t=tc
+    end
+    pk=c
+   end
+   if t==false then
+    p[pk]=true
+   elseif t==true then
+   else
+    t[""]=true
+   end
+  end
+ else
+  for i=1,n do
+   local s=list[i]
+   local t=tree
+   local p,pk
+   for c in gmatch(s,".") do
+    if t==true then
+     t={ [c]=true,[""]=true }
+     p[pk]=t
+     p=t
+     t=false
+    elseif t==false then
+     t={ [c]=false }
+     p[pk]=t
+     p=t
+     t=false
+    else
+     local tc=t[c]
+     if not tc then
+      tc=false
+      t[c]=false
+     end
+     p=t
+     t=tc
+    end
+    pk=c
+   end
+   if t==false then
+    p[pk]=true
+   elseif t==true then
+   else
+    t[""]=true
+   end
+  end
+ end
+ return (insensitive and make2 or make1)(tree)
+end
+lpeg.utfchartabletopattern=utfchartabletopattern
+function lpeg.utfreplacer(list,insensitive)
+ local pattern=Cs((utfchartabletopattern(list,insensitive)/list+utf8character)^0)
+ return function(str)
+  return lpegmatch(pattern,str) or str
+ end
+end
+patterns.containseol=lpeg.finder(eol)
+local function nextstep(n,step,result)
+ local m=n%step   
+ local d=floor(n/step) 
+ if d>0 then
+  local v=V(tostring(step))
+  local s=result.start
+  for i=1,d do
+   if s then
+    s=v*s
+   else
+    s=v
+   end
+  end
+  result.start=s
+ end
+ if step>1 and result.start then
+  local v=V(tostring(step/2))
+  result[tostring(step)]=v*v
+ end
+ if step>0 then
+  return nextstep(m,step/2,result)
+ else
+  return result
+ end
+end
+function lpeg.times(pattern,n)
+ return P(nextstep(n,2^16,{ "start",["1"]=pattern }))
+end
+do
+ local trailingzeros=zero^0*-digit 
+ local stripper=Cs((
+  digits*(
+   period*trailingzeros/""+period*(digit-trailingzeros)^1*(trailingzeros/"")
+  )+1
+ )^0)
+ lpeg.patterns.stripzeros=stripper 
+ local nonzero=digit-zero
+ local trailingzeros=zero^1*endofstring
+ local stripper=Cs((1-period)^0*(
+  period*trailingzeros/""+period*(nonzero^1+(trailingzeros/"")+zero^1)^0+endofstring
+ ))
+ lpeg.patterns.stripzero=stripper
+end
+local byte_to_HEX={}
+local byte_to_hex={}
+local byte_to_dec={} 
+local hex_to_byte={}
+for i=0,255 do
+ local H=format("%02X",i)
+ local h=format("%02x",i)
+ local d=format("%03i",i)
+ local c=char(i)
+ byte_to_HEX[c]=H
+ byte_to_hex[c]=h
+ byte_to_dec[c]=d
+ hex_to_byte[h]=c
+ hex_to_byte[H]=c
+end
+local hextobyte=P(2)/hex_to_byte
+local bytetoHEX=P(1)/byte_to_HEX
+local bytetohex=P(1)/byte_to_hex
+local bytetodec=P(1)/byte_to_dec
+local hextobytes=Cs(hextobyte^0)
+local bytestoHEX=Cs(bytetoHEX^0)
+local bytestohex=Cs(bytetohex^0)
+local bytestodec=Cs(bytetodec^0)
+patterns.hextobyte=hextobyte
+patterns.bytetoHEX=bytetoHEX
+patterns.bytetohex=bytetohex
+patterns.bytetodec=bytetodec
+patterns.hextobytes=hextobytes
+patterns.bytestoHEX=bytestoHEX
+patterns.bytestohex=bytestohex
+patterns.bytestodec=bytestodec
+function string.toHEX(s)
+ if not s or s=="" then
+  return s
+ else
+  return lpegmatch(bytestoHEX,s)
+ end
+end
+function string.tohex(s)
+ if not s or s=="" then
+  return s
+ else
+  return lpegmatch(bytestohex,s)
+ end
+end
+function string.todec(s)
+ if not s or s=="" then
+  return s
+ else
+  return lpegmatch(bytestodec,s)
+ end
+end
+function string.tobytes(s)
+ if not s or s=="" then
+  return s
+ else
+  return lpegmatch(hextobytes,s)
+ end
+end
+local patterns={} 
+local function containsws(what)
+ local p=patterns[what]
+ if not p then
+  local p1=P(what)*(whitespace+endofstring)*Cc(true)
+  local p2=whitespace*P(p1)
+  p=P(p1)+P(1-p2)^0*p2+Cc(false)
+  patterns[what]=p
+ end
+ return p
+end
+lpeg.containsws=containsws
+function string.containsws(str,what)
+ return lpegmatch(patterns[what] or containsws(what),str)
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-functions']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+functions=functions or {}
+function functions.dummy() end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-string']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local string=string
+local sub,gmatch,format,char,byte,rep,lower=string.sub,string.gmatch,string.format,string.char,string.byte,string.rep,string.lower
+local lpegmatch,patterns=lpeg.match,lpeg.patterns
+local P,S,C,Ct,Cc,Cs=lpeg.P,lpeg.S,lpeg.C,lpeg.Ct,lpeg.Cc,lpeg.Cs
+local unquoted=patterns.squote*C(patterns.nosquote)*patterns.squote+patterns.dquote*C(patterns.nodquote)*patterns.dquote
+function string.unquoted(str)
+ return lpegmatch(unquoted,str) or str
+end
+function string.quoted(str)
+ return format("%q",str) 
+end
+function string.count(str,pattern) 
+ local n=0
+ for _ in gmatch(str,pattern) do 
+  n=n+1
+ end
+ return n
+end
+function string.limit(str,n,sentinel) 
+ if #str>n then
+  sentinel=sentinel or "..."
+  return sub(str,1,(n-#sentinel))..sentinel
+ else
+  return str
+ end
+end
+local stripper=patterns.stripper
+local fullstripper=patterns.fullstripper
+local collapser=patterns.collapser
+local nospacer=patterns.nospacer
+local longtostring=patterns.longtostring
+function string.strip(str)
+ return str and lpegmatch(stripper,str) or ""
+end
+function string.fullstrip(str)
+ return str and lpegmatch(fullstripper,str) or ""
+end
+function string.collapsespaces(str)
+ return str and lpegmatch(collapser,str) or ""
+end
+function string.nospaces(str)
+ return str and lpegmatch(nospacer,str) or ""
+end
+function string.longtostring(str)
+ return str and lpegmatch(longtostring,str) or ""
+end
+local pattern=P(" ")^0*P(-1)
+function string.is_empty(str)
+ if not str or str=="" then
+  return true
+ else
+  return lpegmatch(pattern,str) and true or false
+ end
+end
+local anything=patterns.anything
+local moreescapes=Cc("%")*S(".-+%?()[]*$^{}")
+local allescapes=Cc("%")*S(".-+%?()[]*")   
+local someescapes=Cc("%")*S(".-+%()[]")  
+local matchescapes=Cc(".")*S("*?")     
+local pattern_m=Cs ((moreescapes+anything )^0 )
+local pattern_a=Cs ((allescapes+anything )^0 )
+local pattern_b=Cs ((someescapes+matchescapes+anything )^0 )
+local pattern_c=Cs (Cc("^")*(someescapes+matchescapes+anything )^0*Cc("$") )
+function string.escapedpattern(str,simple)
+ return lpegmatch(simple and pattern_b or pattern_a,str)
+end
+function string.topattern(str,lowercase,strict)
+ if str=="" or type(str)~="string" then
+  return ".*"
+ elseif strict=="all" then
+  str=lpegmatch(pattern_m,str)
+ elseif strict then
+  str=lpegmatch(pattern_c,str)
+ else
+  str=lpegmatch(pattern_b,str)
+ end
+ if lowercase then
+  return lower(str)
+ else
+  return str
+ end
+end
+function string.valid(str,default)
+ return (type(str)=="string" and str~="" and str) or default or nil
+end
+string.itself=function(s) return s end
+local pattern_c=Ct(C(1)^0) 
+local pattern_b=Ct((C(1)/byte)^0)
+function string.totable(str,bytes)
+ return lpegmatch(bytes and pattern_b or pattern_c,str)
+end
+local replacer=lpeg.replacer("@","%%") 
+function string.tformat(fmt,...)
+ return format(lpegmatch(replacer,fmt),...)
+end
+string.quote=string.quoted
+string.unquote=string.unquoted
+if not string.bytetable then 
+ local limit=5000 
+ function string.bytetable(str) 
+  local n=#str
+  if n>limit then
+   local t={ byte(str,1,limit) }
+   for i=limit+1,n do
+    t[i]=byte(str,i)
+   end
+   return t
+  else
+   return { byte(str,1,n) }
+  end
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-table']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local type,next,tostring,tonumber,select=type,next,tostring,tonumber,select
+local table,string=table,string
+local concat,sort=table.concat,table.sort
+local format,lower,dump=string.format,string.lower,string.dump
+local getmetatable,setmetatable=getmetatable,setmetatable
+local lpegmatch,patterns=lpeg.match,lpeg.patterns
+local floor=math.floor
+local stripper=patterns.stripper
+function table.getn(t)
+ return t and #t 
+end
+function table.strip(tab)
+ local lst={}
+ local l=0
+ for i=1,#tab do
+  local s=lpegmatch(stripper,tab[i]) or ""
+  if s=="" then
+  else
+   l=l+1
+   lst[l]=s
+  end
+ end
+ return lst
+end
+function table.keys(t)
+ if t then
+  local keys={}
+  local k=0
+  for key in next,t do
+   k=k+1
+   keys[k]=key
+  end
+  return keys
+ else
+  return {}
+ end
+end
+local function compare(a,b)
+ local ta=type(a) 
+ if ta=="number" then
+  local tb=type(b) 
+  if ta==tb then
+   return a<b
+  elseif tb=="string" then
+   return tostring(a)<b
+  end
+ elseif ta=="string" then
+  local tb=type(b) 
+  if ta==tb then
+   return a<b
+  else
+   return a<tostring(b)
+  end
+ end
+ return tostring(a)<tostring(b) 
+end
+local function sortedkeys(tab)
+ if tab then
+  local srt={}
+  local category=0 
+  local s=0
+  for key in next,tab do
+   s=s+1
+   srt[s]=key
+   if category~=3 then
+    local tkey=type(key)
+    if category==1 then
+     if tkey~="string" then
+      category=3
+     end
+    elseif category==2 then
+     if tkey~="number" then
+      category=3
+     end
+    else
+     if tkey=="string" then
+      category=1
+     elseif tkey=="number" then
+      category=2
+     else
+      category=3
+     end
+    end
+   end
+  end
+  if s<2 then
+  elseif category==3 then
+   sort(srt,compare)
+  else
+   sort(srt)
+  end
+  return srt
+ else
+  return {}
+ end
+end
+local function sortedhashonly(tab)
+ if tab then
+  local srt={}
+  local s=0
+  for key in next,tab do
+   if type(key)=="string" then
+    s=s+1
+    srt[s]=key
+   end
+  end
+  if s>1 then
+   sort(srt)
+  end
+  return srt
+ else
+  return {}
+ end
+end
+local function sortedindexonly(tab)
+ if tab then
+  local srt={}
+  local s=0
+  for key in next,tab do
+   if type(key)=="number" then
+    s=s+1
+    srt[s]=key
+   end
+  end
+  if s>1 then
+   sort(srt)
+  end
+  return srt
+ else
+  return {}
+ end
+end
+local function sortedhashkeys(tab,cmp) 
+ if tab then
+  local srt={}
+  local s=0
+  for key in next,tab do
+   if key then
+    s=s+1
+    srt[s]=key
+   end
+  end
+  if s>1 then
+   sort(srt,cmp)
+  end
+  return srt
+ else
+  return {}
+ end
+end
+function table.allkeys(t)
+ local keys={}
+ for k,v in next,t do
+  for k in next,v do
+   keys[k]=true
+  end
+ end
+ return sortedkeys(keys)
+end
+table.sortedkeys=sortedkeys
+table.sortedhashonly=sortedhashonly
+table.sortedindexonly=sortedindexonly
+table.sortedhashkeys=sortedhashkeys
+local function nothing() end
+local function sortedhash(t,cmp)
+ if t then
+  local s
+  if cmp then
+   s=sortedhashkeys(t,function(a,b) return cmp(t,a,b) end)
+  else
+   s=sortedkeys(t) 
+  end
+  local m=#s
+  if m==1 then
+   return next,t
+  elseif m>0 then
+   local n=0
+   return function()
+    if n<m then
+     n=n+1
+     local k=s[n]
+     return k,t[k]
+    end
+   end
+  end
+ end
+ return nothing
+end
+table.sortedhash=sortedhash
+table.sortedpairs=sortedhash 
+function table.append(t,list)
+ local n=#t
+ for i=1,#list do
+  n=n+1
+  t[n]=list[i]
+ end
+ return t
+end
+function table.prepend(t,list)
+ local nl=#list
+ local nt=nl+#t
+ for i=#t,1,-1 do
+  t[nt]=t[i]
+  nt=nt-1
+ end
+ for i=1,#list do
+  t[i]=list[i]
+ end
+ return t
+end
+function table.merge(t,...) 
+ if not t then
+  t={}
+ end
+ for i=1,select("#",...) do
+  for k,v in next,(select(i,...)) do
+   t[k]=v
+  end
+ end
+ return t
+end
+function table.merged(...)
+ local t={}
+ for i=1,select("#",...) do
+  for k,v in next,(select(i,...)) do
+   t[k]=v
+  end
+ end
+ return t
+end
+function table.imerge(t,...)
+ local nt=#t
+ for i=1,select("#",...) do
+  local nst=select(i,...)
+  for j=1,#nst do
+   nt=nt+1
+   t[nt]=nst[j]
+  end
+ end
+ return t
+end
+function table.imerged(...)
+ local tmp={}
+ local ntmp=0
+ for i=1,select("#",...) do
+  local nst=select(i,...)
+  for j=1,#nst do
+   ntmp=ntmp+1
+   tmp[ntmp]=nst[j]
+  end
+ end
+ return tmp
+end
+local function fastcopy(old,metatabletoo) 
+ if old then
+  local new={}
+  for k,v in next,old do
+   if type(v)=="table" then
+    new[k]=fastcopy(v,metatabletoo) 
+   else
+    new[k]=v
+   end
+  end
+  if metatabletoo then
+   local mt=getmetatable(old)
+   if mt then
+    setmetatable(new,mt)
+   end
+  end
+  return new
+ else
+  return {}
+ end
+end
+local function copy(t,tables) 
+ if not tables then
+  tables={}
+ end
+ local tcopy={}
+ if not tables[t] then
+  tables[t]=tcopy
+ end
+ for i,v in next,t do 
+  if type(i)=="table" then
+   if tables[i] then
+    i=tables[i]
+   else
+    i=copy(i,tables)
+   end
+  end
+  if type(v)~="table" then
+   tcopy[i]=v
+  elseif tables[v] then
+   tcopy[i]=tables[v]
+  else
+   tcopy[i]=copy(v,tables)
+  end
+ end
+ local mt=getmetatable(t)
+ if mt then
+  setmetatable(tcopy,mt)
+ end
+ return tcopy
+end
+table.fastcopy=fastcopy
+table.copy=copy
+function table.derive(parent) 
+ local child={}
+ if parent then
+  setmetatable(child,{ __index=parent })
+ end
+ return child
+end
+function table.tohash(t,value)
+ local h={}
+ if t then
+  if value==nil then value=true end
+  for _,v in next,t do
+   h[v]=value
+  end
+ end
+ return h
+end
+function table.fromhash(t)
+ local hsh={}
+ local h=0
+ for k,v in next,t do
+  if v then
+   h=h+1
+   hsh[h]=k
+  end
+ end
+ return hsh
+end
+local noquotes,hexify,handle,compact,inline,functions,metacheck
+local reserved=table.tohash { 
+ 'and','break','do','else','elseif','end','false','for','function','if',
+ 'in','local','nil','not','or','repeat','return','then','true','until','while',
+ 'NaN','goto',
+}
+local function is_simple_table(t,hexify) 
+ local nt=#t
+ if nt>0 then
+  local n=0
+  for _,v in next,t do
+   n=n+1
+   if type(v)=="table" then
+    return nil
+   end
+  end
+  local haszero=rawget(t,0) 
+  if n==nt then
+   local tt={}
+   for i=1,nt do
+    local v=t[i]
+    local tv=type(v)
+    if tv=="number" then
+     if hexify then
+      tt[i]=format("0x%X",v)
+     else
+      tt[i]=v 
+     end
+    elseif tv=="string" then
+     tt[i]=format("%q",v) 
+    elseif tv=="boolean" then
+     tt[i]=v and "true" or "false"
+    else
+     return nil
+    end
+   end
+   return tt
+  elseif haszero and (n==nt+1) then
+   local tt={}
+   for i=0,nt do
+    local v=t[i]
+    local tv=type(v)
+    if tv=="number" then
+     if hexify then
+      tt[i+1]=format("0x%X",v)
+     else
+      tt[i+1]=v 
+     end
+    elseif tv=="string" then
+     tt[i+1]=format("%q",v) 
+    elseif tv=="boolean" then
+     tt[i+1]=v and "true" or "false"
+    else
+     return nil
+    end
+   end
+   tt[1]="[0] = "..tt[1]
+   return tt
+  end
+ end
+ return nil
+end
+table.is_simple_table=is_simple_table
+local propername=patterns.propername 
+local function dummy() end
+local function do_serialize(root,name,depth,level,indexed)
+ if level>0 then
+  depth=depth.." "
+  if indexed then
+   handle(format("%s{",depth))
+  else
+   local tn=type(name)
+   if tn=="number" then
+    if hexify then
+     handle(format("%s[0x%X]={",depth,name))
+    else
+     handle(format("%s[%s]={",depth,name))
+    end
+   elseif tn=="string" then
+    if noquotes and not reserved[name] and lpegmatch(propername,name) then
+     handle(format("%s%s={",depth,name))
+    else
+     handle(format("%s[%q]={",depth,name))
+    end
+   elseif tn=="boolean" then
+    handle(format("%s[%s]={",depth,name and "true" or "false"))
+   else
+    handle(format("%s{",depth))
+   end
+  end
+ end
+ if root and next(root)~=nil then
+  local first=nil
+  local last=0
+  if compact then
+   last=#root
+   for k=1,last do
+    if rawget(root,k)==nil then
+     last=k-1
+     break
+    end
+   end
+   if last>0 then
+    first=1
+   end
+  end
+  local sk=sortedkeys(root)
+  for i=1,#sk do
+   local k=sk[i]
+   local v=root[k]
+   local tv=type(v)
+   local tk=type(k)
+   if compact and first and tk=="number" and k>=first and k<=last then
+    if tv=="number" then
+     if hexify then
+      handle(format("%s 0x%X,",depth,v))
+     else
+      handle(format("%s %s,",depth,v)) 
+     end
+    elseif tv=="string" then
+     handle(format("%s %q,",depth,v))
+    elseif tv=="table" then
+     if next(v)==nil then
+      handle(format("%s {},",depth))
+     elseif inline then 
+      local st=is_simple_table(v,hexify)
+      if st then
+       handle(format("%s { %s },",depth,concat(st,", ")))
+      else
+       do_serialize(v,k,depth,level+1,true)
+      end
+     else
+      do_serialize(v,k,depth,level+1,true)
+     end
+    elseif tv=="boolean" then
+     handle(format("%s %s,",depth,v and "true" or "false"))
+    elseif tv=="function" then
+     if functions then
+      handle(format('%s load(%q),',depth,dump(v))) 
+     else
+      handle(format('%s "function",',depth))
+     end
+    else
+     handle(format("%s %q,",depth,tostring(v)))
+    end
+   elseif k=="__p__" then 
+    if false then
+     handle(format("%s __p__=nil,",depth))
+    end
+   elseif tv=="number" then
+    if tk=="number" then
+     if hexify then
+      handle(format("%s [0x%X]=0x%X,",depth,k,v))
+     else
+      handle(format("%s [%s]=%s,",depth,k,v)) 
+     end
+    elseif tk=="boolean" then
+     if hexify then
+      handle(format("%s [%s]=0x%X,",depth,k and "true" or "false",v))
+     else
+      handle(format("%s [%s]=%s,",depth,k and "true" or "false",v)) 
+     end
+    elseif tk~="string" then
+    elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+     if hexify then
+      handle(format("%s %s=0x%X,",depth,k,v))
+     else
+      handle(format("%s %s=%s,",depth,k,v)) 
+     end
+    else
+     if hexify then
+      handle(format("%s [%q]=0x%X,",depth,k,v))
+     else
+      handle(format("%s [%q]=%s,",depth,k,v)) 
+     end
+    end
+   elseif tv=="string" then
+    if tk=="number" then
+     if hexify then
+      handle(format("%s [0x%X]=%q,",depth,k,v))
+     else
+      handle(format("%s [%s]=%q,",depth,k,v))
+     end
+    elseif tk=="boolean" then
+     handle(format("%s [%s]=%q,",depth,k and "true" or "false",v))
+    elseif tk~="string" then
+    elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+     handle(format("%s %s=%q,",depth,k,v))
+    else
+     handle(format("%s [%q]=%q,",depth,k,v))
+    end
+   elseif tv=="table" then
+    if next(v)==nil then
+     if tk=="number" then
+      if hexify then
+       handle(format("%s [0x%X]={},",depth,k))
+      else
+       handle(format("%s [%s]={},",depth,k))
+      end
+     elseif tk=="boolean" then
+      handle(format("%s [%s]={},",depth,k and "true" or "false"))
+     elseif tk~="string" then
+     elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+      handle(format("%s %s={},",depth,k))
+     else
+      handle(format("%s [%q]={},",depth,k))
+     end
+    elseif inline then
+     local st=is_simple_table(v,hexify)
+     if st then
+      if tk=="number" then
+       if hexify then
+        handle(format("%s [0x%X]={ %s },",depth,k,concat(st,", ")))
+       else
+        handle(format("%s [%s]={ %s },",depth,k,concat(st,", ")))
+       end
+      elseif tk=="boolean" then
+       handle(format("%s [%s]={ %s },",depth,k and "true" or "false",concat(st,", ")))
+      elseif tk~="string" then
+      elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+       handle(format("%s %s={ %s },",depth,k,concat(st,", ")))
+      else
+       handle(format("%s [%q]={ %s },",depth,k,concat(st,", ")))
+      end
+     else
+      do_serialize(v,k,depth,level+1)
+     end
+    else
+     do_serialize(v,k,depth,level+1)
+    end
+   elseif tv=="boolean" then
+    if tk=="number" then
+     if hexify then
+      handle(format("%s [0x%X]=%s,",depth,k,v and "true" or "false"))
+     else
+      handle(format("%s [%s]=%s,",depth,k,v and "true" or "false"))
+     end
+    elseif tk=="boolean" then
+     handle(format("%s [%s]=%s,",depth,tostring(k),v and "true" or "false"))
+    elseif tk~="string" then
+    elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+     handle(format("%s %s=%s,",depth,k,v and "true" or "false"))
+    else
+     handle(format("%s [%q]=%s,",depth,k,v and "true" or "false"))
+    end
+   elseif tv=="function" then
+    if functions then
+     local getinfo=debug and debug.getinfo
+     if getinfo then
+      local f=getinfo(v).what=="C" and dump(dummy) or dump(v)
+      if tk=="number" then
+       if hexify then
+        handle(format("%s [0x%X]=load(%q),",depth,k,f))
+       else
+        handle(format("%s [%s]=load(%q),",depth,k,f))
+       end
+      elseif tk=="boolean" then
+       handle(format("%s [%s]=load(%q),",depth,k and "true" or "false",f))
+      elseif tk~="string" then
+      elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+       handle(format("%s %s=load(%q),",depth,k,f))
+      else
+       handle(format("%s [%q]=load(%q),",depth,k,f))
+      end
+     end
+    end
+   else
+    if tk=="number" then
+     if hexify then
+      handle(format("%s [0x%X]=%q,",depth,k,tostring(v)))
+     else
+      handle(format("%s [%s]=%q,",depth,k,tostring(v)))
+     end
+    elseif tk=="boolean" then
+     handle(format("%s [%s]=%q,",depth,k and "true" or "false",tostring(v)))
+    elseif tk~="string" then
+    elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+     handle(format("%s %s=%q,",depth,k,tostring(v)))
+    else
+     handle(format("%s [%q]=%q,",depth,k,tostring(v)))
+    end
+   end
+  end
+ end
+ if level>0 then
+  handle(format("%s},",depth))
+ end
+end
+local function serialize(_handle,root,name,specification) 
+ local tname=type(name)
+ if type(specification)=="table" then
+  noquotes=specification.noquotes
+  hexify=specification.hexify
+  handle=_handle or specification.handle or print
+  functions=specification.functions
+  compact=specification.compact
+  inline=specification.inline and compact
+  metacheck=specification.metacheck
+  if functions==nil then
+   functions=true
+  end
+  if compact==nil then
+   compact=true
+  end
+  if inline==nil then
+   inline=compact
+  end
+  if metacheck==nil then
+   metacheck=true
+  end
+ else
+  noquotes=false
+  hexify=false
+  handle=_handle or print
+  compact=true
+  inline=true
+  functions=true
+  metacheck=true
+ end
+ if tname=="string" then
+  if name=="return" then
+   handle("return {")
+  else
+   handle(name.."={")
+  end
+ elseif tname=="number" then
+  if hexify then
+   handle(format("[0x%X]={",name))
+  else
+   handle("["..name.."]={")
+  end
+ elseif tname=="boolean" then
+  if name then
+   handle("return {")
+  else
+   handle("{")
+  end
+ else
+  handle("t={")
+ end
+ if root then
+  if metacheck and getmetatable(root) then
+   local dummy=root._w_h_a_t_e_v_e_r_
+   root._w_h_a_t_e_v_e_r_=nil
+  end
+  if next(root)~=nil then
+   do_serialize(root,name,"",0)
+  end
+ end
+ handle("}")
+end
+function table.serialize(root,name,specification)
+ local t={}
+ local n=0
+ local function flush(s)
+  n=n+1
+  t[n]=s
+ end
+ serialize(flush,root,name,specification)
+ return concat(t,"\n")
+end
+table.tohandle=serialize
+local maxtab=2*1024
+function table.tofile(filename,root,name,specification)
+ local f=io.open(filename,'w')
+ if f then
+  if maxtab>1 then
+   local t={}
+   local n=0
+   local function flush(s)
+    n=n+1
+    t[n]=s
+    if n>maxtab then
+     f:write(concat(t,"\n"),"\n") 
+     t={} 
+     n=0
+    end
+   end
+   serialize(flush,root,name,specification)
+   f:write(concat(t,"\n"),"\n")
+  else
+   local function flush(s)
+    f:write(s,"\n")
+   end
+   serialize(flush,root,name,specification)
+  end
+  f:close()
+  io.flush()
+ end
+end
+local function flattened(t,f,depth) 
+ if f==nil then
+  f={}
+  depth=0xFFFF
+ elseif tonumber(f) then
+  depth=f
+  f={}
+ elseif not depth then
+  depth=0xFFFF
+ end
+ for k,v in next,t do
+  if type(k)~="number" then
+   if depth>0 and type(v)=="table" then
+    flattened(v,f,depth-1)
+   else
+    f[#f+1]=v
+   end
+  end
+ end
+ for k=1,#t do
+  local v=t[k]
+  if depth>0 and type(v)=="table" then
+   flattened(v,f,depth-1)
+  else
+   f[#f+1]=v
+  end
+ end
+ return f
+end
+table.flattened=flattened
+local function collapsed(t,f,h)
+ if f==nil then
+  f={}
+  h={}
+ end
+ for k=1,#t do
+  local v=t[k]
+  if type(v)=="table" then
+   collapsed(v,f,h)
+  elseif not h[v] then
+   f[#f+1]=v
+   h[v]=true
+  end
+ end
+ return f
+end
+local function collapsedhash(t,h)
+ if h==nil then
+  h={}
+ end
+ for k=1,#t do
+  local v=t[k]
+  if type(v)=="table" then
+   collapsedhash(v,h)
+  else
+   h[v]=true
+  end
+ end
+ return h
+end
+table.collapsed=collapsed  
+table.collapsedhash=collapsedhash
+local function unnest(t,f) 
+ if not f then    
+  f={}   
+ end
+ for i=1,#t do
+  local v=t[i]
+  if type(v)=="table" then
+   if type(v[1])=="table" then
+    unnest(v,f)
+   else
+    f[#f+1]=v
+   end
+  else
+   f[#f+1]=v
+  end
+ end
+ return f
+end
+function table.unnest(t) 
+ return unnest(t)
+end
+local function are_equal(a,b,n,m) 
+ if a==b then
+  return true
+ elseif a and b and #a==#b then
+  if not n then
+   n=1
+  end
+  if not m then
+   m=#a
+  end
+  for i=n,m do
+   local ai,bi=a[i],b[i]
+   if ai==bi then
+   elseif type(ai)=="table" and type(bi)=="table" then
+    if not are_equal(ai,bi) then
+     return false
+    end
+   else
+    return false
+   end
+  end
+  return true
+ else
+  return false
+ end
+end
+local function identical(a,b) 
+ if a~=b then
+  for ka,va in next,a do
+   local vb=b[ka]
+   if va==vb then
+   elseif type(va)=="table" and  type(vb)=="table" then
+    if not identical(va,vb) then
+     return false
+    end
+   else
+    return false
+   end
+  end
+ end
+ return true
+end
+table.identical=identical
+table.are_equal=are_equal
+local function sparse(old,nest,keeptables)
+ local new={}
+ for k,v in next,old do
+  if not (v=="" or v==false) then
+   if nest and type(v)=="table" then
+    v=sparse(v,nest)
+    if keeptables or next(v)~=nil then
+     new[k]=v
+    end
+   else
+    new[k]=v
+   end
+  end
+ end
+ return new
+end
+table.sparse=sparse
+function table.compact(t)
+ return sparse(t,true,true)
+end
+function table.contains(t,v)
+ if t then
+  for i=1,#t do
+   if t[i]==v then
+    return i
+   end
+  end
+ end
+ return false
+end
+function table.count(t)
+ local n=0
+ for k,v in next,t do
+  n=n+1
+ end
+ return n
+end
+function table.swapped(t,s) 
+ local n={}
+ if s then
+  for k,v in next,s do
+   n[k]=v
+  end
+ end
+ for k,v in next,t do
+  n[v]=k
+ end
+ return n
+end
+function table.hashed(t) 
+ for i=1,#t do
+  t[t[i]]=i
+ end
+ return t
+end
+function table.mirrored(t) 
+ local n={}
+ for k,v in next,t do
+  n[v]=k
+  n[k]=v
+ end
+ return n
+end
+function table.reversed(t)
+ if t then
+  local tt={}
+  local tn=#t
+  if tn>0 then
+   local ttn=0
+   for i=tn,1,-1 do
+    ttn=ttn+1
+    tt[ttn]=t[i]
+   end
+  end
+  return tt
+ end
+end
+function table.reverse(t) 
+ if t then
+  local n=#t
+  local m=n+1
+  for i=1,floor(n/2) do 
+   local j=m-i
+   t[i],t[j]=t[j],t[i]
+  end
+  return t
+ end
+end
+local function sequenced(t,sep,simple)
+ if not t then
+  return ""
+ elseif type(t)~="table" then
+  return t 
+ end
+ local n=#t
+ local s={}
+ if n>0 then
+  for i=1,n do
+   local v=t[i]
+   if type(v)=="table" then
+    s[i]="{"..sequenced(v,sep,simple).."}"
+   else
+    s[i]=tostring(t[i])
+   end
+  end
+ else
+  n=0
+  for k,v in sortedhash(t) do
+   if simple then
+    if v==true then
+     n=n+1
+     s[n]=k
+    elseif v and v~="" then
+     n=n+1
+     if type(v)=="table" then
+      s[n]=k.."={"..sequenced(v,sep,simple).."}"
+     else
+      s[n]=k.."="..tostring(v)
+     end
+    end
+   else
+    n=n+1
+    if type(v)=="table" then
+     s[n]=k.."={"..sequenced(v,sep,simple).."}"
+    else
+     s[n]=k.."="..tostring(v)
+    end
+   end
+  end
+ end
+ if sep==true then
+  return "{ "..concat(s,", ").." }"
+ else
+  return concat(s,sep or " | ")
+ end
+end
+table.sequenced=sequenced
+function table.print(t,...)
+ if type(t)~="table" then
+  print(tostring(t))
+ else
+  serialize(print,t,...)
+ end
+end
+if setinspector then
+ setinspector("table",function(v) if type(v)=="table" then serialize(print,v,"table") return true end end)
+end
+function table.sub(t,i,j)
+ return { unpack(t,i,j) }
+end
+function table.is_empty(t)
+ return not t or next(t)==nil
+end
+function table.has_one_entry(t)
+ return t and next(t,next(t))==nil
+end
+function table.loweredkeys(t) 
+ local l={}
+ for k,v in next,t do
+  l[lower(k)]=v
+ end
+ return l
+end
+function table.unique(old)
+ local hash={}
+ local new={}
+ local n=0
+ for i=1,#old do
+  local oi=old[i]
+  if not hash[oi] then
+   n=n+1
+   new[n]=oi
+   hash[oi]=true
+  end
+ end
+ return new
+end
+function table.sorted(t,...)
+ sort(t,...)
+ return t 
+end
+function table.values(t,s) 
+ if t then
+  local values={}
+  local keys={}
+  local v=0
+  for key,value in next,t do
+   if not keys[value] then
+    v=v+1
+    values[v]=value
+    keys[k]=key
+   end
+  end
+  if s then
+   sort(values)
+  end
+  return values
+ else
+  return {}
+ end
+end
+function table.filtered(t,pattern,sort,cmp)
+ if t and type(pattern)=="string" then
+  if sort then
+   local s
+   if cmp then
+    s=sortedhashkeys(t,function(a,b) return cmp(t,a,b) end)
+   else
+    s=sortedkeys(t) 
+   end
+   local n=0
+   local m=#s
+   local function kv(s)
+    while n<m do
+     n=n+1
+     local k=s[n]
+     if find(k,pattern) then
+      return k,t[k]
+     end
+    end
+   end
+   return kv,s
+  else
+   local n=next(t)
+   local function iterator()
+    while n~=nil do
+     local k=n
+     n=next(t,k)
+     if find(k,pattern) then
+      return k,t[k]
+     end
+    end
+   end
+   return iterator,t
+  end
+ else
+  return nothing
+ end
+end
+if not table.move then
+ function table.move(a1,f,e,t,a2)
+  if a2 and a1~=a2 then
+   for i=f,e do
+    a2[t]=a1[i]
+    t=t+1
+   end
+   return a2
+  else
+   t=t+e-f
+   for i=e,f,-1 do
+    a1[t]=a1[i]
+    t=t-1
+   end
+   return a1
+  end
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-io']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local io=io
+local open,flush,write,read=io.open,io.flush,io.write,io.read
+local byte,find,gsub,format=string.byte,string.find,string.gsub,string.format
+local concat=table.concat
+local type=type
+if string.find(os.getenv("PATH"),";",1,true) then
+ io.fileseparator,io.pathseparator="\\",";"
+else
+ io.fileseparator,io.pathseparator="/",":"
+end
+local large=0x01000000 
+local medium=0x00100000 
+local small=0x00020000
+local function readall(f)
+ local size=f:seek("end")
+ if size>0 then
+  f:seek("set",0)
+  return f:read(size)
+ else
+  return ""
+ end
+end
+io.readall=readall
+function io.loaddata(filename,textmode) 
+ local f=open(filename,(textmode and 'r') or 'rb')
+ if f then
+  local size=f:seek("end")
+  local data=nil
+  if size>0 then
+   f:seek("set",0)
+   data=f:read(size)
+  end
+  f:close()
+  return data
+ end
+end
+function io.copydata(source,target,action)
+ local f=open(source,"rb")
+ if f then
+  local g=open(target,"wb")
+  if g then
+   local size=f:seek("end")
+   if size>0 then
+    f:seek("set",0)
+    local data=f:read(size)
+    if action then
+     data=action(data)
+    end
+    if data then
+     g:write(data)
+    end
+   end
+   g:close()
+  end
+  f:close()
+  flush()
+ end
+end
+function io.savedata(filename,data,joiner)
+ local f=open(filename,"wb")
+ if f then
+  if type(data)=="table" then
+   f:write(concat(data,joiner or ""))
+  elseif type(data)=="function" then
+   data(f)
+  else
+   f:write(data or "")
+  end
+  f:close()
+  flush()
+  return true
+ else
+  return false
+ end
+end
+if fio and fio.readline then
+ local readline=fio.readline
+ function io.loadlines(filename,n) 
+  local f=open(filename,'r')
+  if not f then
+  elseif n then
+   local lines={}
+   for i=1,n do
+    local line=readline(f)
+    if line then
+     lines[i]=line
+    else
+     break
+    end
+   end
+   f:close()
+   lines=concat(lines,"\n")
+   if #lines>0 then
+    return lines
+   end
+  else
+   local line=readline(f)
+   f:close()
+   if line and #line>0 then
+    return line
+   end
+  end
+ end
+else
+ function io.loadlines(filename,n) 
+  local f=open(filename,'r')
+  if not f then
+  elseif n then
+   local lines={}
+   for i=1,n do
+    local line=f:read("*lines")
+    if line then
+     lines[i]=line
+    else
+     break
+    end
+   end
+   f:close()
+   lines=concat(lines,"\n")
+   if #lines>0 then
+    return lines
+   end
+  else
+   local line=f:read("*line") or ""
+   f:close()
+   if #line>0 then
+    return line
+   end
+  end
+ end
+end
+function io.loadchunk(filename,n)
+ local f=open(filename,'rb')
+ if f then
+  local data=f:read(n or 1024)
+  f:close()
+  if #data>0 then
+   return data
+  end
+ end
+end
+function io.exists(filename)
+ local f=open(filename)
+ if f==nil then
+  return false
+ else
+  f:close()
+  return true
+ end
+end
+function io.size(filename)
+ local f=open(filename)
+ if f==nil then
+  return 0
+ else
+  local s=f:seek("end")
+  f:close()
+  return s
+ end
+end
+local function noflines(f)
+ if type(f)=="string" then
+  local f=open(filename)
+  if f then
+   local n=f and noflines(f) or 0
+   f:close()
+   return n
+  else
+   return 0
+  end
+ else
+  local n=0
+  for _ in f:lines() do
+   n=n+1
+  end
+  f:seek('set',0)
+  return n
+ end
+end
+io.noflines=noflines
+local nextchar={
+ [ 4]=function(f)
+  return f:read(1,1,1,1)
+ end,
+ [ 2]=function(f)
+  return f:read(1,1)
+ end,
+ [ 1]=function(f)
+  return f:read(1)
+ end,
+ [-2]=function(f)
+  local a,b=f:read(1,1)
+  return b,a
+ end,
+ [-4]=function(f)
+  local a,b,c,d=f:read(1,1,1,1)
+  return d,c,b,a
+ end
+}
+function io.characters(f,n)
+ if f then
+  return nextchar[n or 1],f
+ end
+end
+local nextbyte={
+ [4]=function(f)
+  local a,b,c,d=f:read(1,1,1,1)
+  if d then
+   return byte(a),byte(b),byte(c),byte(d)
+  end
+ end,
+ [3]=function(f)
+  local a,b,c=f:read(1,1,1)
+  if b then
+   return byte(a),byte(b),byte(c)
+  end
+ end,
+ [2]=function(f)
+  local a,b=f:read(1,1)
+  if b then
+   return byte(a),byte(b)
+  end
+ end,
+ [1]=function (f)
+  local a=f:read(1)
+  if a then
+   return byte(a)
+  end
+ end,
+ [-2]=function (f)
+  local a,b=f:read(1,1)
+  if b then
+   return byte(b),byte(a)
+  end
+ end,
+ [-3]=function(f)
+  local a,b,c=f:read(1,1,1)
+  if b then
+   return byte(c),byte(b),byte(a)
+  end
+ end,
+ [-4]=function(f)
+  local a,b,c,d=f:read(1,1,1,1)
+  if d then
+   return byte(d),byte(c),byte(b),byte(a)
+  end
+ end
+}
+function io.bytes(f,n)
+ if f then
+  return nextbyte[n or 1],f
+ else
+  return nil,nil
+ end
+end
+function io.ask(question,default,options)
+ while true do
+  write(question)
+  if options then
+   write(format(" [%s]",concat(options,"|")))
+  end
+  if default then
+   write(format(" [%s]",default))
+  end
+  write(format(" "))
+  flush()
+  local answer=read()
+  answer=gsub(answer,"^%s*(.*)%s*$","%1")
+  if answer=="" and default then
+   return default
+  elseif not options then
+   return answer
+  else
+   for k=1,#options do
+    if options[k]==answer then
+     return answer
+    end
+   end
+   local pattern="^"..answer
+   for k=1,#options do
+    local v=options[k]
+    if find(v,pattern) then
+     return v
+    end
+   end
+  end
+ end
+end
+local function readnumber(f,n,m) 
+ if m then
+  f:seek("set",n)
+  n=m
+ end
+ if n==1 then
+  return byte(f:read(1))
+ elseif n==2 then
+  local a,b=byte(f:read(2),1,2)
+  return 0x100*a+b
+ elseif n==3 then
+  local a,b,c=byte(f:read(3),1,3)
+  return 0x10000*a+0x100*b+c
+ elseif n==4 then
+  local a,b,c,d=byte(f:read(4),1,4)
+  return 0x1000000*a+0x10000*b+0x100*c+d
+ elseif n==8 then
+  local a,b=readnumber(f,4),readnumber(f,4)
+  return 0x100*a+b
+ elseif n==12 then
+  local a,b,c=readnumber(f,4),readnumber(f,4),readnumber(f,4)
+  return 0x10000*a+0x100*b+c
+ elseif n==-2 then
+  local b,a=byte(f:read(2),1,2)
+  return 0x100*a+b
+ elseif n==-3 then
+  local c,b,a=byte(f:read(3),1,3)
+  return 0x10000*a+0x100*b+c
+ elseif n==-4 then
+  local d,c,b,a=byte(f:read(4),1,4)
+  return 0x1000000*a+0x10000*b+0x100*c+d
+ elseif n==-8 then
+  local h,g,f,e,d,c,b,a=byte(f:read(8),1,8)
+  return 0x100000000000000*a+0x1000000000000*b+0x10000000000*c+0x100000000*d+0x1000000*e+0x10000*f+0x100*g+h
+ else
+  return 0
+ end
+end
+io.readnumber=readnumber
+function io.readstring(f,n,m)
+ if m then
+  f:seek("set",n)
+  n=m
+ end
+ local str=gsub(f:read(n),"\000","")
+ return str
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-file']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+file=file or {}
+local file=file
+if not lfs then
+ lfs=optionalrequire("lfs")
+end
+local insert,concat=table.insert,table.concat
+local match,find,gmatch=string.match,string.find,string.gmatch
+local lpegmatch=lpeg.match
+local getcurrentdir,attributes=lfs.currentdir,lfs.attributes
+local checkedsplit=string.checkedsplit
+local P,R,S,C,Cs,Cp,Cc,Ct=lpeg.P,lpeg.R,lpeg.S,lpeg.C,lpeg.Cs,lpeg.Cp,lpeg.Cc,lpeg.Ct
+local attributes=lfs.attributes
+function lfs.isdir(name)
+ return attributes(name,"mode")=="directory"
+end
+function lfs.isfile(name)
+ local a=attributes(name,"mode")
+ return a=="file" or a=="link" or nil
+end
+function lfs.isfound(name)
+ local a=attributes(name,"mode")
+ return (a=="file" or a=="link") and name or nil
+end
+if sandbox then
+ sandbox.redefine(lfs.isfile,"lfs.isfile")
+ sandbox.redefine(lfs.isdir,"lfs.isdir")
+ sandbox.redefine(lfs.isfound,"lfs.isfound")
+end
+local colon=P(":")
+local period=P(".")
+local periods=P("..")
+local fwslash=P("/")
+local bwslash=P("\\")
+local slashes=S("\\/")
+local noperiod=1-period
+local noslashes=1-slashes
+local name=noperiod^1
+local suffix=period/""*(1-period-slashes)^1*-1
+local pattern=C((1-(slashes^1*noslashes^1*-1))^1)*P(1) 
+local function pathpart(name,default)
+ return name and lpegmatch(pattern,name) or default or ""
+end
+local pattern=(noslashes^0*slashes)^1*C(noslashes^1)*-1
+local function basename(name)
+ return name and lpegmatch(pattern,name) or name
+end
+local pattern=(noslashes^0*slashes^1)^0*Cs((1-suffix)^1)*suffix^0
+local function nameonly(name)
+ return name and lpegmatch(pattern,name) or name
+end
+local pattern=(noslashes^0*slashes)^0*(noperiod^1*period)^1*C(noperiod^1)*-1
+local function suffixonly(name)
+ return name and lpegmatch(pattern,name) or ""
+end
+local pattern=(noslashes^0*slashes)^0*noperiod^1*((period*C(noperiod^1))^1)*-1+Cc("")
+local function suffixesonly(name)
+ if name then
+  return lpegmatch(pattern,name)
+ else
+  return ""
+ end
+end
+file.pathpart=pathpart
+file.basename=basename
+file.nameonly=nameonly
+file.suffixonly=suffixonly
+file.suffix=suffixonly
+file.suffixesonly=suffixesonly
+file.suffixes=suffixesonly
+file.dirname=pathpart   
+file.extname=suffixonly
+local drive=C(R("az","AZ"))*colon
+local path=C((noslashes^0*slashes)^0)
+local suffix=period*C(P(1-period)^0*P(-1))
+local base=C((1-suffix)^0)
+local rest=C(P(1)^0)
+drive=drive+Cc("")
+path=path+Cc("")
+base=base+Cc("")
+suffix=suffix+Cc("")
+local pattern_a=drive*path*base*suffix
+local pattern_b=path*base*suffix
+local pattern_c=C(drive*path)*C(base*suffix) 
+local pattern_d=path*rest
+function file.splitname(str,splitdrive)
+ if not str then
+ elseif splitdrive then
+  return lpegmatch(pattern_a,str) 
+ else
+  return lpegmatch(pattern_b,str) 
+ end
+end
+function file.splitbase(str)
+ if str then
+  return lpegmatch(pattern_d,str) 
+ else
+  return "",str 
+ end
+end
+function file.nametotable(str,splitdrive)
+ if str then
+  local path,drive,subpath,name,base,suffix=lpegmatch(pattern_c,str)
+  if splitdrive then
+   return {
+    path=path,
+    drive=drive,
+    subpath=subpath,
+    name=name,
+    base=base,
+    suffix=suffix,
+   }
+  else
+   return {
+    path=path,
+    name=name,
+    base=base,
+    suffix=suffix,
+   }
+  end
+ end
+end
+local pattern=Cs(((period*(1-period-slashes)^1*-1)/""+1)^1)
+function file.removesuffix(name)
+ return name and lpegmatch(pattern,name)
+end
+local suffix=period/""*(1-period-slashes)^1*-1
+local pattern=Cs((noslashes^0*slashes^1)^0*((1-suffix)^1))*Cs(suffix)
+function file.addsuffix(filename,suffix,criterium)
+ if not filename or not suffix or suffix=="" then
+  return filename
+ elseif criterium==true then
+  return filename.."."..suffix
+ elseif not criterium then
+  local n,s=lpegmatch(pattern,filename)
+  if not s or s=="" then
+   return filename.."."..suffix
+  else
+   return filename
+  end
+ else
+  local n,s=lpegmatch(pattern,filename)
+  if s and s~="" then
+   local t=type(criterium)
+   if t=="table" then
+    for i=1,#criterium do
+     if s==criterium[i] then
+      return filename
+     end
+    end
+   elseif t=="string" then
+    if s==criterium then
+     return filename
+    end
+   end
+  end
+  return (n or filename).."."..suffix
+ end
+end
+local suffix=period*(1-period-slashes)^1*-1
+local pattern=Cs((1-suffix)^0)
+function file.replacesuffix(name,suffix)
+ if name and suffix and suffix~="" then
+  return lpegmatch(pattern,name).."."..suffix
+ else
+  return name
+ end
+end
+local reslasher=lpeg.replacer(P("\\"),"/")
+function file.reslash(str)
+ return str and lpegmatch(reslasher,str)
+end
+if lfs.isreadablefile and lfs.iswritablefile then
+ file.is_readable=lfs.isreadablefile
+ file.is_writable=lfs.iswritablefile
+else
+ function file.is_writable(name)
+  if not name then
+  elseif lfs.isdir(name) then
+   name=name.."/m_t_x_t_e_s_t.tmp"
+   local f=io.open(name,"wb")
+   if f then
+    f:close()
+    os.remove(name)
+    return true
+   end
+  elseif lfs.isfile(name) then
+   local f=io.open(name,"ab")
+   if f then
+    f:close()
+    return true
+   end
+  else
+   local f=io.open(name,"ab")
+   if f then
+    f:close()
+    os.remove(name)
+    return true
+   end
+  end
+  return false
+ end
+ local readable=P("r")*Cc(true)
+ function file.is_readable(name)
+  if name then
+   local a=attributes(name)
+   return a and lpegmatch(readable,a.permissions) or false
+  else
+   return false
+  end
+ end
+end
+file.isreadable=file.is_readable 
+file.iswritable=file.is_writable 
+function file.size(name)
+ if name then
+  local a=attributes(name)
+  return a and a.size or 0
+ else
+  return 0
+ end
+end
+function file.splitpath(str,separator) 
+ return str and checkedsplit(lpegmatch(reslasher,str),separator or io.pathseparator)
+end
+function file.joinpath(tab,separator) 
+ return tab and concat(tab,separator or io.pathseparator) 
+end
+local someslash=S("\\/")
+local stripper=Cs(P(fwslash)^0/""*reslasher)
+local isnetwork=someslash*someslash*(1-someslash)+(1-fwslash-colon)^1*colon
+local isroot=fwslash^1*-1
+local hasroot=fwslash^1
+local reslasher=lpeg.replacer(S("\\/"),"/")
+local deslasher=lpeg.replacer(S("\\/")^1,"/")
+function file.join(one,two,three,...)
+ if not two then
+  return one=="" and one or lpegmatch(reslasher,one)
+ end
+ if one=="" then
+  return lpegmatch(stripper,three and concat({ two,three,... },"/") or two)
+ end
+ if lpegmatch(isnetwork,one) then
+  local one=lpegmatch(reslasher,one)
+  local two=lpegmatch(deslasher,three and concat({ two,three,... },"/") or two)
+  if lpegmatch(hasroot,two) then
+   return one..two
+  else
+   return one.."/"..two
+  end
+ elseif lpegmatch(isroot,one) then
+  local two=lpegmatch(deslasher,three and concat({ two,three,... },"/") or two)
+  if lpegmatch(hasroot,two) then
+   return two
+  else
+   return "/"..two
+  end
+ else
+  return lpegmatch(deslasher,concat({  one,two,three,... },"/"))
+ end
+end
+local drivespec=R("az","AZ")^1*colon
+local anchors=fwslash+drivespec
+local untouched=periods+(1-period)^1*P(-1)
+local mswindrive=Cs(drivespec*(bwslash/"/"+fwslash)^0)
+local mswinuncpath=(bwslash+fwslash)*(bwslash+fwslash)*Cc("//")
+local splitstarter=(mswindrive+mswinuncpath+Cc(false))*Ct(lpeg.splitat(S("/\\")^1))
+local absolute=fwslash
+function file.collapsepath(str,anchor) 
+ if not str then
+  return
+ end
+ if anchor==true and not lpegmatch(anchors,str) then
+  str=getcurrentdir().."/"..str
+ end
+ if str=="" or str=="." then
+  return "."
+ elseif lpegmatch(untouched,str) then
+  return lpegmatch(reslasher,str)
+ end
+ local starter,oldelements=lpegmatch(splitstarter,str)
+ local newelements={}
+ local i=#oldelements
+ while i>0 do
+  local element=oldelements[i]
+  if element=='.' then
+  elseif element=='..' then
+   local n=i-1
+   while n>0 do
+    local element=oldelements[n]
+    if element~='..' and element~='.' then
+     oldelements[n]='.'
+     break
+    else
+     n=n-1
+    end
+    end
+   if n<1 then
+      insert(newelements,1,'..')
+   end
+  elseif element~="" then
+   insert(newelements,1,element)
+  end
+  i=i-1
+ end
+ if #newelements==0 then
+  return starter or "."
+ elseif starter then
+  return starter..concat(newelements,'/')
+ elseif lpegmatch(absolute,str) then
+  return "/"..concat(newelements,'/')
+ else
+  newelements=concat(newelements,'/')
+  if anchor=="." and find(str,"^%./") then
+   return "./"..newelements
+  else
+   return newelements
+  end
+ end
+end
+local validchars=R("az","09","AZ","--","..")
+local pattern_a=lpeg.replacer(1-validchars)
+local pattern_a=Cs((validchars+P(1)/"-")^1)
+local whatever=P("-")^0/""
+local pattern_b=Cs(whatever*(1-whatever*-1)^1)
+function file.robustname(str,strict)
+ if str then
+  str=lpegmatch(pattern_a,str) or str
+  if strict then
+   return lpegmatch(pattern_b,str) or str 
+  else
+   return str
+  end
+ end
+end
+local loaddata=io.loaddata
+local savedata=io.savedata
+file.readdata=loaddata
+file.savedata=savedata
+function file.copy(oldname,newname)
+ if oldname and newname then
+  local data=loaddata(oldname)
+  if data and data~="" then
+   savedata(newname,data)
+  end
+ end
+end
+local letter=R("az","AZ")+S("_-+")
+local separator=P("://")
+local qualified=period^0*fwslash+letter*colon+letter^1*separator+letter^1*fwslash
+local rootbased=fwslash+letter*colon
+lpeg.patterns.qualified=qualified
+lpeg.patterns.rootbased=rootbased
+function file.is_qualified_path(filename)
+ return filename and lpegmatch(qualified,filename)~=nil
+end
+function file.is_rootbased_path(filename)
+ return filename and lpegmatch(rootbased,filename)~=nil
+end
+function file.strip(name,dir)
+ if name then
+  local b,a=match(name,"^(.-)"..dir.."(.*)$")
+  return a~="" and a or name
+ end
+end
+function lfs.mkdirs(path)
+ local full=""
+ for sub in gmatch(path,"(/*[^\\/]+)") do 
+  full=full..sub
+  lfs.mkdir(full)
+ end
+end
+function file.withinbase(path) 
+ local l=0
+ if not find(path,"^/") then
+  path="/"..path
+ end
+ for dir in gmatch(path,"/([^/]+)") do
+  if dir==".." then
+   l=l-1
+  elseif dir~="." then
+   l=l+1
+  end
+  if l<0 then
+   return false
+  end
+ end
+ return true
+end
+local symlinkattributes=lfs.symlinkattributes
+function lfs.readlink(name)
+ return symlinkattributes(name,"target") or nil
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-boolean']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local type,tonumber=type,tonumber
+boolean=boolean or {}
+local boolean=boolean
+function boolean.tonumber(b)
+ if b then return 1 else return 0 end 
+end
+function toboolean(str,tolerant) 
+ if  str==nil then
+  return false
+ elseif str==false then
+  return false
+ elseif str==true then
+  return true
+ elseif str=="true" then
+  return true
+ elseif str=="false" then
+  return false
+ elseif not tolerant then
+  return false
+ elseif str==0 then
+  return false
+ elseif (tonumber(str) or 0)>0 then
+  return true
+ else
+  return str=="yes" or str=="on" or str=="t"
+ end
+end
+string.toboolean=toboolean
+function string.booleanstring(str)
+ if str=="0" then
+  return false
+ elseif str=="1" then
+  return true
+ elseif str=="" then
+  return false
+ elseif str=="false" then
+  return false
+ elseif str=="true" then
+  return true
+ elseif (tonumber(str) or 0)>0 then
+  return true
+ else
+  return str=="yes" or str=="on" or str=="t"
+ end
+end
+function string.is_boolean(str,default,strict)
+ if type(str)=="string" then
+  if str=="true" or str=="yes" or str=="on" or str=="t" or (not strict and str=="1") then
+   return true
+  elseif str=="false" or str=="no" or str=="off" or str=="f" or (not strict and str=="0") then
+   return false
+  end
+ end
+ return default
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-math']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if not math.ceiling then
+ math.ceiling=math.ceil
+end
+if not math.round then
+ local floor=math.floor
+ function math.round(x) return floor(x+0.5) end
+end
+if not math.div then
+ local floor=math.floor
+ function math.div(n,m) return floor(n/m) end
+end
+if not math.mod then
+ function math.mod(n,m) return n%m end
+end
+if not math.sind then
+ local sin,cos,tan=math.sin,math.cos,math.tan
+ local pipi=2*math.pi/360
+ function math.sind(d) return sin(d*pipi) end
+ function math.cosd(d) return cos(d*pipi) end
+ function math.tand(d) return tan(d*pipi) end
+end
+if not math.odd then
+ function math.odd (n) return n%2~=0 end
+ function math.even(n) return n%2==0 end
+end
+if not math.cosh then
+ local exp=math.exp
+ function math.cosh(x)
+  local xx=exp(x)
+  return (xx+1/xx)/2
+ end
+ function math.sinh(x)
+  local xx=exp(x)
+  return (xx-1/xx)/2
+ end
+ function math.tanh(x)
+  local xx=exp(x)
+  return (xx-1/xx)/(xx+1/xx)
+ end
+end
+if not math.pow then
+ function math.pow(x,y)
+  return x^y
+ end
+end
+if not math.atan2 then
+ math.atan2=math.atan
+end
+if not math.ldexp then
+ function math.ldexp(x,e)
+  return x*2.0^e
+ end
+end
+if not math.log10 then
+ local log=math.log
+ function math.log10(x)
+  return log(x,10)
+ end
+end
+if not math.type then
+ function math.type()
+  return "float"
+ end
+end
+if not math.tointeger then
+ math.mininteger=-0x4FFFFFFFFFFF
+ math.maxinteger=0x4FFFFFFFFFFF
+ local floor=math.floor
+ function math.tointeger(n)
+  local f=floor(n)
+  return f==n and f or nil
+ end
+end
+if not math.ult then
+ local floor=math.floor
+ function math.tointeger(m,n)
+  return floor(m)<floor(n) 
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['util-str']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+utilities=utilities or {}
+utilities.strings=utilities.strings or {}
+local strings=utilities.strings
+local format,gsub,rep,sub,find=string.format,string.gsub,string.rep,string.sub,string.find
+local load,dump=load,string.dump
+local tonumber,type,tostring,next,setmetatable=tonumber,type,tostring,next,setmetatable
+local unpack,concat=table.unpack,table.concat
+local P,V,C,S,R,Ct,Cs,Cp,Carg,Cc=lpeg.P,lpeg.V,lpeg.C,lpeg.S,lpeg.R,lpeg.Ct,lpeg.Cs,lpeg.Cp,lpeg.Carg,lpeg.Cc
+local patterns,lpegmatch=lpeg.patterns,lpeg.match
+local utfchar,utfbyte,utflen=utf.char,utf.byte,utf.len
+local loadstripped=function(str,shortcuts)
+ if shortcuts then
+  return load(dump(load(str),true),nil,nil,shortcuts)
+ else
+  return load(dump(load(str),true))
+ end
+end
+if not number then number={} end 
+local stripzero=patterns.stripzero
+local stripzeros=patterns.stripzeros
+local newline=patterns.newline
+local endofstring=patterns.endofstring
+local anything=patterns.anything
+local whitespace=patterns.whitespace
+local space=patterns.space
+local spacer=patterns.spacer
+local spaceortab=patterns.spaceortab
+local digit=patterns.digit
+local sign=patterns.sign
+local period=patterns.period
+local ptf=1/65536
+local bpf=(7200/7227)/65536
+local function points(n)
+ if n==0 then
+  return "0pt"
+ end
+ n=tonumber(n)
+ if not n or n==0 then
+  return "0pt"
+ end
+ n=n*ptf
+ if n%1==0 then
+  return format("%ipt",n)
+ end
+ return lpegmatch(stripzeros,format("%.5fpt",n)) 
+end
+local function basepoints(n)
+ if n==0 then
+  return "0pt"
+ end
+ n=tonumber(n)
+ if not n or n==0 then
+  return "0pt"
+ end
+ n=n*bpf
+ if n%1==0 then
+  return format("%ibp",n)
+ end
+ return lpegmatch(stripzeros,format("%.5fbp",n)) 
+end
+number.points=points
+number.basepoints=basepoints
+local rubish=spaceortab^0*newline
+local anyrubish=spaceortab+newline
+local stripped=(spaceortab^1/"")*newline
+local leading=rubish^0/""
+local trailing=(anyrubish^1*endofstring)/""
+local redundant=rubish^3/"\n"
+local pattern=Cs(leading*(trailing+redundant+stripped+anything)^0)
+function strings.collapsecrlf(str)
+ return lpegmatch(pattern,str)
+end
+local repeaters={} 
+function strings.newrepeater(str,offset)
+ offset=offset or 0
+ local s=repeaters[str]
+ if not s then
+  s={}
+  repeaters[str]=s
+ end
+ local t=s[offset]
+ if t then
+  return t
+ end
+ t={}
+ setmetatable(t,{ __index=function(t,k)
+  if not k then
+   return ""
+  end
+  local n=k+offset
+  local s=n>0 and rep(str,n) or ""
+  t[k]=s
+  return s
+ end })
+ s[offset]=t
+ return t
+end
+local extra,tab,start=0,0,4,0
+local nspaces=strings.newrepeater(" ")
+string.nspaces=nspaces
+local pattern=Carg(1)/function(t)
+  extra,tab,start=0,t or 7,1
+ end*Cs((
+   Cp()*patterns.tab/function(position)
+    local current=(position-start+1)+extra
+    local spaces=tab-(current-1)%tab
+    if spaces>0 then
+     extra=extra+spaces-1
+     return nspaces[spaces] 
+    else
+     return ""
+    end
+   end+newline*Cp()/function(position)
+    extra,start=0,position
+   end+anything
+  )^1)
+function strings.tabtospace(str,tab)
+ return lpegmatch(pattern,str,1,tab or 7)
+end
+function string.utfpadding(s,n)
+ if not n or n==0 then
+  return ""
+ end
+ local l=utflen(s)
+ if n>0 then
+  return nspaces[n-l]
+ else
+  return nspaces[-n-l]
+ end
+end
+local optionalspace=spacer^0
+local nospace=optionalspace/""
+local endofline=nospace*newline
+local stripend=(whitespace^1*endofstring)/""
+local normalline=(nospace*((1-optionalspace*(newline+endofstring))^1)*nospace)
+local stripempty=endofline^1/""
+local normalempty=endofline^1
+local singleempty=endofline*(endofline^0/"")
+local doubleempty=endofline*endofline^-1*(endofline^0/"")
+local stripstart=stripempty^0
+local intospace=whitespace^1/" "
+local noleading=whitespace^1/""
+local notrailing=noleading*endofstring
+local p_prune_normal=Cs (stripstart*(stripend+normalline+normalempty )^0 )
+local p_prune_collapse=Cs (stripstart*(stripend+normalline+doubleempty )^0 )
+local p_prune_noempty=Cs (stripstart*(stripend+normalline+singleempty )^0 )
+local p_prune_intospace=Cs (noleading*(notrailing+intospace+1     )^0 )
+local p_retain_normal=Cs ((normalline+normalempty )^0 )
+local p_retain_collapse=Cs ((normalline+doubleempty )^0 )
+local p_retain_noempty=Cs ((normalline+singleempty )^0 )
+local striplinepatterns={
+ ["prune"]=p_prune_normal,
+ ["prune and collapse"]=p_prune_collapse,
+ ["prune and no empty"]=p_prune_noempty,
+ ["prune and to space"]=p_prune_intospace,
+ ["retain"]=p_retain_normal,
+ ["retain and collapse"]=p_retain_collapse,
+ ["retain and no empty"]=p_retain_noempty,
+ ["collapse"]=patterns.collapser,
+}
+setmetatable(striplinepatterns,{ __index=function(t,k) return p_prune_collapse end })
+strings.striplinepatterns=striplinepatterns
+function strings.striplines(str,how)
+ return str and lpegmatch(striplinepatterns[how],str) or str
+end
+function strings.collapse(str) 
+ return str and lpegmatch(p_prune_intospace,str) or str
+end
+strings.striplong=strings.striplines
+function strings.nice(str)
+ str=gsub(str,"[:%-+_]+"," ") 
+ return str
+end
+local n=0
+local sequenced=table.sequenced
+function string.autodouble(s,sep)
+ if s==nil then
+  return '""'
+ end
+ local t=type(s)
+ if t=="number" then
+  return tostring(s) 
+ end
+ if t=="table" then
+  return ('"'..sequenced(s,sep or ",")..'"')
+ end
+ return ('"'..tostring(s)..'"')
+end
+function string.autosingle(s,sep)
+ if s==nil then
+  return "''"
+ end
+ local t=type(s)
+ if t=="number" then
+  return tostring(s) 
+ end
+ if t=="table" then
+  return ("'"..sequenced(s,sep or ",").."'")
+ end
+ return ("'"..tostring(s).."'")
+end
+local tracedchars={ [0]=
+ "[null]","[soh]","[stx]","[etx]","[eot]","[enq]","[ack]","[bel]",
+ "[bs]","[ht]","[lf]","[vt]","[ff]","[cr]","[so]","[si]",
+ "[dle]","[dc1]","[dc2]","[dc3]","[dc4]","[nak]","[syn]","[etb]",
+ "[can]","[em]","[sub]","[esc]","[fs]","[gs]","[rs]","[us]",
+ "[space]",
+}
+string.tracedchars=tracedchars
+strings.tracers=tracedchars
+function string.tracedchar(b)
+ if type(b)=="number" then
+  return tracedchars[b] or (utfchar(b).." (U+"..format("%05X",b)..")")
+ else
+  local c=utfbyte(b)
+  return tracedchars[c] or (b.." (U+"..(c and format("%05X",c) or "?????")..")")
+ end
+end
+function number.signed(i)
+ if i>0 then
+  return "+",i
+ else
+  return "-",-i
+ end
+end
+local two=digit*digit
+local three=two*digit
+local prefix=(Carg(1)*three)^1
+local splitter=Cs (
+ (((1-(three^1*period))^1+C(three))*prefix+C((1-period)^1))*(anything/""*Carg(2))*C(2)
+)
+local splitter3=Cs (
+ three*prefix*endofstring+two*prefix*endofstring+digit*prefix*endofstring+three+two+digit
+)
+patterns.formattednumber=splitter
+function number.formatted(n,sep1,sep2)
+ if sep1==false then
+  if type(n)=="number" then
+   n=tostring(n)
+  end
+  return lpegmatch(splitter3,n,1,sep2 or ".")
+ else
+  if type(n)=="number" then
+   n=format("%0.2f",n)
+  end
+  if sep1==true then
+   return lpegmatch(splitter,n,1,".",",")
+  elseif sep1=="." then
+   return lpegmatch(splitter,n,1,sep1,sep2 or ",")
+  elseif sep1=="," then
+   return lpegmatch(splitter,n,1,sep1,sep2 or ".")
+  else
+   return lpegmatch(splitter,n,1,sep1 or ",",sep2 or ".")
+  end
+ end
+end
+local p=Cs(
+  P("-")^0*(P("0")^1/"")^0*(1-period)^0*(period*P("0")^1*endofstring/""+period^0)*P(1-P("0")^1*endofstring)^0
+ )
+function number.compactfloat(n,fmt)
+ if n==0 then
+  return "0"
+ elseif n==1 then
+  return "1"
+ end
+ n=lpegmatch(p,format(fmt or "%0.3f",n))
+ if n=="." or n=="" or n=="-" then
+  return "0"
+ end
+ return n
+end
+local zero=P("0")^1/""
+local plus=P("+")/""
+local minus=P("-")
+local separator=period
+local trailing=zero^1*#S("eE")
+local exponent=(S("eE")*(plus+Cs((minus*zero^0*endofstring)/"")+minus)*zero^0*(endofstring*Cc("0")+anything^1))
+local pattern_a=Cs(minus^0*digit^1*(separator/""*trailing+separator*(trailing+digit)^0)*exponent)
+local pattern_b=Cs((exponent+anything)^0)
+function number.sparseexponent(f,n)
+ if not n then
+  n=f
+  f="%e"
+ end
+ local tn=type(n)
+ if tn=="string" then 
+  local m=tonumber(n)
+  if m then
+   return lpegmatch((f=="%e" or f=="%E") and pattern_a or pattern_b,format(f,m))
+  end
+ elseif tn=="number" then
+  return lpegmatch((f=="%e" or f=="%E") and pattern_a or pattern_b,format(f,n))
+ end
+ return tostring(n)
+end
+local hf={}
+local hs={}
+setmetatable(hf,{ __index=function(t,k)
+ local v="%."..k.."f"
+ t[k]=v
+ return v
+end } )
+setmetatable(hs,{ __index=function(t,k)
+ local v="%"..k.."s"
+ t[k]=v
+ return v
+end } )
+function number.formattedfloat(n,b,a)
+ local s=format(hf[a],n)
+ local l=(b or 0)+(a or 0)+1
+ if #s<l then
+  return format(hs[l],s)
+ else
+  return s
+ end
+end
+local template=[[
+%s
+%s
+return function(%s) return %s end
+]]
+local pattern=Cs(Cc('"')*(
+ (1-S('"\\\n\r'))^1+P('"')/'\\"'+P('\\')/'\\\\'+P('\n')/'\\n'+P('\r')/'\\r'
+)^0*Cc('"'))
+patterns.escapedquotes=pattern
+function string.escapedquotes(s)
+ return lpegmatch(pattern,s)
+end
+local preamble=""
+local environment={
+ global=global or _G,
+ lpeg=lpeg,
+ type=type,
+ tostring=tostring,
+ tonumber=tonumber,
+ format=string.format,
+ concat=table.concat,
+ signed=number.signed,
+ points=number.points,
+ basepoints=number.basepoints,
+ utfchar=utf.char,
+ utfbyte=utf.byte,
+ lpegmatch=lpeg.match,
+ nspaces=string.nspaces,
+ utfpadding=string.utfpadding,
+ tracedchar=string.tracedchar,
+ autosingle=string.autosingle,
+ autodouble=string.autodouble,
+ sequenced=table.sequenced,
+ formattednumber=number.formatted,
+ sparseexponent=number.sparseexponent,
+ formattedfloat=number.formattedfloat,
+ stripzero=patterns.stripzero,
+ stripzeros=patterns.stripzeros,
+ escapedquotes=string.escapedquotes,
+ FORMAT=string.f9,
+}
+local arguments={ "a1" } 
+setmetatable(arguments,{ __index=function(t,k)
+  local v=t[k-1]..",a"..k
+  t[k]=v
+  return v
+ end
+})
+local prefix_any=C((sign+space+period+digit)^0)
+local prefix_sub=(C((sign+digit)^0)+Cc(0))*period*(C((sign+digit)^0)+Cc(0))
+local prefix_tab=P("{")*C((1-P("}"))^0)*P("}")+C((1-R("az","AZ","09","%%"))^0)
+local format_s=function(f)
+ n=n+1
+ if f and f~="" then
+  return format("format('%%%ss',a%s)",f,n)
+ else 
+  return format("(a%s or '')",n) 
+ end
+end
+local format_S=function(f) 
+ n=n+1
+ if f and f~="" then
+  return format("format('%%%ss',tostring(a%s))",f,n)
+ else
+  return format("tostring(a%s)",n)
+ end
+end
+local format_right=function(f)
+ n=n+1
+ f=tonumber(f)
+ if not f or f==0 then
+  return format("(a%s or '')",n)
+ elseif f>0 then
+  return format("utfpadding(a%s,%i)..a%s",n,f,n)
+ else
+  return format("a%s..utfpadding(a%s,%i)",n,n,f)
+ end
+end
+local format_left=function(f)
+ n=n+1
+ f=tonumber(f)
+ if not f or f==0 then
+  return format("(a%s or '')",n)
+ end
+ if f<0 then
+  return format("utfpadding(a%s,%i)..a%s",n,-f,n)
+ else
+  return format("a%s..utfpadding(a%s,%i)",n,n,-f)
+ end
+end
+local format_q=function()
+ n=n+1
+ return format("(a%s ~= nil and format('%%q',tostring(a%s)) or '')",n,n)
+end
+local format_Q=function() 
+ n=n+1
+ return format("escapedquotes(tostring(a%s))",n)
+end
+local format_i=function(f)
+ n=n+1
+ if f and f~="" then
+  return format("format('%%%si',a%s)",f,n)
+ else
+  return format("format('%%i',a%s)",n) 
+ end
+end
+local format_d=format_i
+local format_I=function(f)
+ n=n+1
+ return format("format('%%s%%%si',signed(a%s))",f,n)
+end
+local format_f=function(f)
+ n=n+1
+ return format("format('%%%sf',a%s)",f,n)
+end
+local format_F=function(f) 
+ n=n+1
+ if not f or f=="" then
+  return format("(((a%s > -0.0000000005 and a%s < 0.0000000005) and '0') or format((a%s %% 1 == 0) and '%%i' or '%%.9f',a%s))",n,n,n,n)
+ else
+  return format("format((a%s %% 1 == 0) and '%%i' or '%%%sf',a%s)",n,f,n)
+ end
+end
+local format_k=function(b,a) 
+ n=n+1
+ return format("formattedfloat(a%s,%s,%s)",n,b or 0,a or 0)
+end
+local format_g=function(f)
+ n=n+1
+ return format("format('%%%sg',a%s)",f,n)
+end
+local format_G=function(f)
+ n=n+1
+ return format("format('%%%sG',a%s)",f,n)
+end
+local format_e=function(f)
+ n=n+1
+ return format("format('%%%se',a%s)",f,n)
+end
+local format_E=function(f)
+ n=n+1
+ return format("format('%%%sE',a%s)",f,n)
+end
+local format_j=function(f)
+ n=n+1
+ return format("sparseexponent('%%%se',a%s)",f,n)
+end
+local format_J=function(f)
+ n=n+1
+ return format("sparseexponent('%%%sE',a%s)",f,n)
+end
+local format_x=function(f)
+ n=n+1
+ return format("format('%%%sx',a%s)",f,n)
+end
+local format_X=function(f)
+ n=n+1
+ return format("format('%%%sX',a%s)",f,n)
+end
+local format_o=function(f)
+ n=n+1
+ return format("format('%%%so',a%s)",f,n)
+end
+local format_c=function()
+ n=n+1
+ return format("utfchar(a%s)",n)
+end
+local format_C=function()
+ n=n+1
+ return format("tracedchar(a%s)",n)
+end
+local format_r=function(f)
+ n=n+1
+ return format("format('%%%s.0f',a%s)",f,n)
+end
+local format_h=function(f)
+ n=n+1
+ if f=="-" then
+  f=sub(f,2)
+  return format("format('%%%sx',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ else
+  return format("format('0x%%%sx',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ end
+end
+local format_H=function(f)
+ n=n+1
+ if f=="-" then
+  f=sub(f,2)
+  return format("format('%%%sX',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ else
+  return format("format('0x%%%sX',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ end
+end
+local format_u=function(f)
+ n=n+1
+ if f=="-" then
+  f=sub(f,2)
+  return format("format('%%%sx',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ else
+  return format("format('u+%%%sx',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ end
+end
+local format_U=function(f)
+ n=n+1
+ if f=="-" then
+  f=sub(f,2)
+  return format("format('%%%sX',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ else
+  return format("format('U+%%%sX',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ end
+end
+local format_p=function()
+ n=n+1
+ return format("points(a%s)",n)
+end
+local format_b=function()
+ n=n+1
+ return format("basepoints(a%s)",n)
+end
+local format_t=function(f)
+ n=n+1
+ if f and f~="" then
+  return format("concat(a%s,%q)",n,f)
+ else
+  return format("concat(a%s)",n)
+ end
+end
+local format_T=function(f)
+ n=n+1
+ if f and f~="" then
+  return format("sequenced(a%s,%q)",n,f)
+ else
+  return format("sequenced(a%s)",n)
+ end
+end
+local format_l=function()
+ n=n+1
+ return format("(a%s and 'true' or 'false')",n)
+end
+local format_L=function()
+ n=n+1
+ return format("(a%s and 'TRUE' or 'FALSE')",n)
+end
+local format_n=function() 
+ n=n+1
+ return format("((a%s %% 1 == 0) and format('%%i',a%s) or tostring(a%s))",n,n,n)
+end
+local format_N=function(f) 
+ n=n+1
+ if not f or f=="" then
+  f=".9"
+ end 
+ return format("(((a%s %% 1 == 0) and format('%%i',a%s)) or lpegmatch(stripzero,format('%%%sf',a%s)))",n,n,f,n)
+end
+local format_a=function(f)
+ n=n+1
+ if f and f~="" then
+  return format("autosingle(a%s,%q)",n,f)
+ else
+  return format("autosingle(a%s)",n)
+ end
+end
+local format_A=function(f)
+ n=n+1
+ if f and f~="" then
+  return format("autodouble(a%s,%q)",n,f)
+ else
+  return format("autodouble(a%s)",n)
+ end
+end
+local format_w=function(f) 
+ n=n+1
+ f=tonumber(f)
+ if f then 
+  return format("nspaces[%s+a%s]",f,n) 
+ else
+  return format("nspaces[a%s]",n) 
+ end
+end
+local format_W=function(f) 
+ return format("nspaces[%s]",tonumber(f) or 0)
+end
+local format_m=function(f)
+ n=n+1
+ if not f or f=="" then
+  f=","
+ end
+ if f=="0" then
+  return format([[formattednumber(a%s,false)]],n)
+ else
+  return format([[formattednumber(a%s,%q,".")]],n,f)
+ end
+end
+local format_M=function(f)
+ n=n+1
+ if not f or f=="" then
+  f="."
+ end
+ if f=="0" then
+  return format([[formattednumber(a%s,false)]],n)
+ else
+  return format([[formattednumber(a%s,%q,",")]],n,f)
+ end
+end
+local format_z=function(f)
+ n=n+(tonumber(f) or 1)
+ return "''" 
+end
+local format_rest=function(s)
+ return format("%q",s) 
+end
+local format_extension=function(extensions,f,name)
+ local extension=extensions[name] or "tostring(%s)"
+ local f=tonumber(f) or 1
+ local w=find(extension,"%.%.%.")
+ if w then
+  if f==0 then
+   extension=gsub(extension,"%.%.%.","")
+   return extension
+  elseif f==1 then
+   extension=gsub(extension,"%.%.%.","%%s")
+   n=n+1
+   local a="a"..n
+   return format(extension,a,a) 
+  elseif f<0 then
+   local a="a"..(n+f+1)
+   return format(extension,a,a)
+  else
+   extension=gsub(extension,"%.%.%.",rep("%%s,",f-1).."%%s")
+   local t={}
+   for i=1,f do
+    n=n+1
+    t[i]="a"..n
+   end
+   return format(extension,unpack(t))
+  end
+ else
+  extension=gsub(extension,"%%s",function()
+   n=n+1
+   return "a"..n
+  end)
+  return extension
+ end
+end
+local builder=Cs { "start",
+ start=(
+  (
+   P("%")/""*(
+    V("!") 
++V("s")+V("q")+V("i")+V("d")+V("f")+V("F")+V("g")+V("G")+V("e")+V("E")+V("x")+V("X")+V("o")
++V("c")+V("C")+V("S") 
++V("Q") 
++V("n") 
++V("N") 
++V("k")
++V("r")+V("h")+V("H")+V("u")+V("U")+V("p")+V("b")+V("t")+V("T")+V("l")+V("L")+V("I")+V("w") 
++V("W") 
++V("a") 
++V("A") 
++V("j")+V("J") 
++V("m")+V("M") 
++V("z")
++V(">") 
++V("<")
+   )+V("*")
+  )*(endofstring+Carg(1))
+ )^0,
+ ["s"]=(prefix_any*P("s"))/format_s,
+ ["q"]=(prefix_any*P("q"))/format_q,
+ ["i"]=(prefix_any*P("i"))/format_i,
+ ["d"]=(prefix_any*P("d"))/format_d,
+ ["f"]=(prefix_any*P("f"))/format_f,
+ ["F"]=(prefix_any*P("F"))/format_F,
+ ["g"]=(prefix_any*P("g"))/format_g,
+ ["G"]=(prefix_any*P("G"))/format_G,
+ ["e"]=(prefix_any*P("e"))/format_e,
+ ["E"]=(prefix_any*P("E"))/format_E,
+ ["x"]=(prefix_any*P("x"))/format_x,
+ ["X"]=(prefix_any*P("X"))/format_X,
+ ["o"]=(prefix_any*P("o"))/format_o,
+ ["S"]=(prefix_any*P("S"))/format_S,
+ ["Q"]=(prefix_any*P("Q"))/format_Q,
+ ["n"]=(prefix_any*P("n"))/format_n,
+ ["N"]=(prefix_any*P("N"))/format_N,
+ ["k"]=(prefix_sub*P("k"))/format_k,
+ ["c"]=(prefix_any*P("c"))/format_c,
+ ["C"]=(prefix_any*P("C"))/format_C,
+ ["r"]=(prefix_any*P("r"))/format_r,
+ ["h"]=(prefix_any*P("h"))/format_h,
+ ["H"]=(prefix_any*P("H"))/format_H,
+ ["u"]=(prefix_any*P("u"))/format_u,
+ ["U"]=(prefix_any*P("U"))/format_U,
+ ["p"]=(prefix_any*P("p"))/format_p,
+ ["b"]=(prefix_any*P("b"))/format_b,
+ ["t"]=(prefix_tab*P("t"))/format_t,
+ ["T"]=(prefix_tab*P("T"))/format_T,
+ ["l"]=(prefix_any*P("l"))/format_l,
+ ["L"]=(prefix_any*P("L"))/format_L,
+ ["I"]=(prefix_any*P("I"))/format_I,
+ ["w"]=(prefix_any*P("w"))/format_w,
+ ["W"]=(prefix_any*P("W"))/format_W,
+ ["j"]=(prefix_any*P("j"))/format_j,
+ ["J"]=(prefix_any*P("J"))/format_J,
+ ["m"]=(prefix_any*P("m"))/format_m,
+ ["M"]=(prefix_any*P("M"))/format_M,
+ ["z"]=(prefix_any*P("z"))/format_z,
+ ["a"]=(prefix_any*P("a"))/format_a,
+ ["A"]=(prefix_any*P("A"))/format_A,
+ ["<"]=(prefix_any*P("<"))/format_left,
+ [">"]=(prefix_any*P(">"))/format_right,
+ ["*"]=Cs(((1-P("%"))^1+P("%%")/"%%")^1)/format_rest,
+ ["?"]=Cs(((1-P("%"))^1      )^1)/format_rest,
+ ["!"]=Carg(2)*prefix_any*P("!")*C((1-P("!"))^1)*P("!")/format_extension,
+}
+local xx=setmetatable({},{ __index=function(t,k) local v=format("%02x",k) t[k]=v return v end })
+local XX=setmetatable({},{ __index=function(t,k) local v=format("%02X",k) t[k]=v return v end })
+local preset={
+ ["%02x"]=function(n) return xx[n] end,
+ ["%02X"]=function(n) return XX[n] end,
+}
+local direct=P("%")*(sign+space+period+digit)^0*S("sqidfgGeExXo")*endofstring/[[local format = string.format return function(str) return format("%0",str) end]]
+local function make(t,str)
+ local f=preset[str]
+ if f then
+  return f
+ end
+ local p=lpegmatch(direct,str)
+ if p then
+  f=loadstripped(p)()
+ else
+  n=0
+  p=lpegmatch(builder,str,1,t._connector_,t._extensions_) 
+  if n>0 then
+   p=format(template,preamble,t._preamble_,arguments[n],p)
+   f=loadstripped(p,t._environment_)() 
+  else
+   f=function() return str end
+  end
+ end
+ t[str]=f
+ return f
+end
+local function use(t,fmt,...)
+ return t[fmt](...)
+end
+strings.formatters={}
+function strings.formatters.new(noconcat)
+ local e={} 
+ for k,v in next,environment do
+  e[k]=v
+ end
+ local t={
+  _type_="formatter",
+  _connector_=noconcat and "," or "..",
+  _extensions_={},
+  _preamble_="",
+  _environment_=e,
+ }
+ setmetatable(t,{ __index=make,__call=use })
+ return t
+end
+local formatters=strings.formatters.new() 
+string.formatters=formatters 
+string.formatter=function(str,...) return formatters[str](...) end 
+local function add(t,name,template,preamble)
+ if type(t)=="table" and t._type_=="formatter" then
+  t._extensions_[name]=template or "%s"
+  if type(preamble)=="string" then
+   t._preamble_=preamble.."\n"..t._preamble_ 
+  elseif type(preamble)=="table" then
+   for k,v in next,preamble do
+    t._environment_[k]=v
+   end
+  end
+ end
+end
+strings.formatters.add=add
+patterns.xmlescape=Cs((P("<")/"&lt;"+P(">")/"&gt;"+P("&")/"&amp;"+P('"')/"&quot;"+anything)^0)
+patterns.texescape=Cs((C(S("#$%\\{}"))/"\\%1"+anything)^0)
+patterns.luaescape=Cs(((1-S('"\n'))^1+P('"')/'\\"'+P('\n')/'\\n"')^0) 
+patterns.luaquoted=Cs(Cc('"')*((1-S('"\n'))^1+P('"')/'\\"'+P('\n')/'\\n"')^0*Cc('"'))
+add(formatters,"xml",[[lpegmatch(xmlescape,%s)]],{ xmlescape=patterns.xmlescape })
+add(formatters,"tex",[[lpegmatch(texescape,%s)]],{ texescape=patterns.texescape })
+add(formatters,"lua",[[lpegmatch(luaescape,%s)]],{ luaescape=patterns.luaescape })
+local dquote=patterns.dquote 
+local equote=patterns.escaped+dquote/'\\"'+1
+local cquote=Cc('"')
+local pattern=Cs(dquote*(equote-P(-2))^0*dquote)     
++Cs(cquote*(equote-space)^0*space*equote^0*cquote) 
+function string.optionalquoted(str)
+ return lpegmatch(pattern,str) or str
+end
+local pattern=Cs((newline/(os.newline or "\r")+1)^0)
+function string.replacenewlines(str)
+ return lpegmatch(pattern,str)
+end
+function strings.newcollector()
+ local result,r={},0
+ return
+  function(fmt,str,...) 
+   r=r+1
+   result[r]=str==nil and fmt or formatters[fmt](str,...)
+  end,
+  function(connector) 
+   if result then
+    local str=concat(result,connector)
+    result,r={},0
+    return str
+   end
+  end
+end
+local f_16_16=formatters["%0.5N"]
+function number.to16dot16(n)
+ return f_16_16(n/65536.0)
+end
+if not string.explode then
+ local tsplitat=lpeg.tsplitat
+ local p_utf=patterns.utf8character
+ local p_check=C(p_utf)*(P("+")*Cc(true))^0
+ local p_split=Ct(C(p_utf)^0)
+ local p_space=Ct((C(1-P(" ")^1)+P(" ")^1)^0)
+ function string.explode(str,symbol)
+  if symbol=="" then
+   return lpegmatch(p_split,str)
+  elseif symbol then
+   local a,b=lpegmatch(p_check,symbol)
+   if b then
+    return lpegmatch(tsplitat(P(a)^1),str)
+   else
+    return lpegmatch(tsplitat(a),str)
+   end
+  else
+   return lpegmatch(p_space,str)
+  end
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['util-fil']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local tonumber=tonumber
+local byte=string.byte
+local char=string.char
+utilities=utilities or {}
+local files={}
+utilities.files=files
+local zerobased={}
+function files.open(filename,zb)
+ local f=io.open(filename,"rb")
+ if f then
+  zerobased[f]=zb or false
+ end
+ return f
+end
+function files.close(f)
+ zerobased[f]=nil
+ f:close()
+end
+function files.size(f)
+ local current=f:seek()
+ local size=f:seek("end")
+ f:seek("set",current)
+ return size
+end
+files.getsize=files.size
+function files.setposition(f,n)
+ if zerobased[f] then
+  f:seek("set",n)
+ else
+  f:seek("set",n-1)
+ end
+end
+function files.getposition(f)
+ if zerobased[f] then
+  return f:seek()
+ else
+  return f:seek()+1
+ end
+end
+function files.look(f,n,chars)
+ local p=f:seek()
+ local s=f:read(n)
+ f:seek("set",p)
+ if chars then
+  return s
+ else
+  return byte(s,1,#s)
+ end
+end
+function files.skip(f,n)
+ if n==1 then
+  f:read(n)
+ else
+  f:seek("set",f:seek()+n)
+ end
+end
+function files.readbyte(f)
+ return byte(f:read(1))
+end
+function files.readbytes(f,n)
+ return byte(f:read(n),1,n)
+end
+function files.readbytetable(f,n)
+ local s=f:read(n or 1)
+ return { byte(s,1,#s) } 
+end
+function files.readchar(f)
+ return f:read(1)
+end
+function files.readstring(f,n)
+ return f:read(n or 1)
+end
+function files.readinteger1(f)  
+ local n=byte(f:read(1))
+ if n>=0x80 then
+  return n-0x100
+ else
+  return n
+ end
+end
+files.readcardinal1=files.readbyte  
+files.readcardinal=files.readcardinal1
+files.readinteger=files.readinteger1
+files.readsignedbyte=files.readinteger1
+function files.readcardinal2(f)
+ local a,b=byte(f:read(2),1,2)
+ return 0x100*a+b
+end
+function files.readcardinal2le(f)
+ local b,a=byte(f:read(2),1,2)
+ return 0x100*a+b
+end
+function files.readinteger2(f)
+ local a,b=byte(f:read(2),1,2)
+ if a>=0x80 then
+  return 0x100*a+b-0x10000
+ else
+  return 0x100*a+b
+ end
+end
+function files.readinteger2le(f)
+ local b,a=byte(f:read(2),1,2)
+ if a>=0x80 then
+  return 0x100*a+b-0x10000
+ else
+  return 0x100*a+b
+ end
+end
+function files.readcardinal3(f)
+ local a,b,c=byte(f:read(3),1,3)
+ return 0x10000*a+0x100*b+c
+end
+function files.readcardinal3le(f)
+ local c,b,a=byte(f:read(3),1,3)
+ return 0x10000*a+0x100*b+c
+end
+function files.readinteger3(f)
+ local a,b,c=byte(f:read(3),1,3)
+ if a>=0x80 then
+  return 0x10000*a+0x100*b+c-0x1000000
+ else
+  return 0x10000*a+0x100*b+c
+ end
+end
+function files.readinteger3le(f)
+ local c,b,a=byte(f:read(3),1,3)
+ if a>=0x80 then
+  return 0x10000*a+0x100*b+c-0x1000000
+ else
+  return 0x10000*a+0x100*b+c
+ end
+end
+function files.readcardinal4(f)
+ local a,b,c,d=byte(f:read(4),1,4)
+ return 0x1000000*a+0x10000*b+0x100*c+d
+end
+function files.readcardinal4le(f)
+ local d,c,b,a=byte(f:read(4),1,4)
+ return 0x1000000*a+0x10000*b+0x100*c+d
+end
+function files.readinteger4(f)
+ local a,b,c,d=byte(f:read(4),1,4)
+ if a>=0x80 then
+  return 0x1000000*a+0x10000*b+0x100*c+d-0x100000000
+ else
+  return 0x1000000*a+0x10000*b+0x100*c+d
+ end
+end
+function files.readinteger4le(f)
+ local d,c,b,a=byte(f:read(4),1,4)
+ if a>=0x80 then
+  return 0x1000000*a+0x10000*b+0x100*c+d-0x100000000
+ else
+  return 0x1000000*a+0x10000*b+0x100*c+d
+ end
+end
+function files.readfixed2(f)
+ local a,b=byte(f:read(2),1,2)
+ if a>=0x80 then
+  tonumber((a-0x100).."."..b)
+ else
+  tonumber((a    ).."."..b)
+ end
+end
+function files.readfixed4(f)
+ local a,b,c,d=byte(f:read(4),1,4)
+ if a>=0x80 then
+  tonumber((0x100*a+b-0x10000).."."..(0x100*c+d))
+ else
+  tonumber((0x100*a+b    ).."."..(0x100*c+d))
+ end
+end
+if bit32 then
+ local extract=bit32.extract
+ local band=bit32.band
+ function files.read2dot14(f)
+  local a,b=byte(f:read(2),1,2)
+  if a>=0x80 then
+   local n=-(0x100*a+b)
+   return-(extract(n,14,2)+(band(n,0x3FFF)/16384.0))
+  else
+   local n=0x100*a+b
+   return   (extract(n,14,2)+(band(n,0x3FFF)/16384.0))
+  end
+ end
+end
+function files.skipshort(f,n)
+ f:read(2*(n or 1))
+end
+function files.skiplong(f,n)
+ f:read(4*(n or 1))
+end
+if bit32 then
+ local rshift=bit32.rshift
+ function files.writecardinal2(f,n)
+  local a=char(n%256)
+  n=rshift(n,8)
+  local b=char(n%256)
+  f:write(b,a)
+ end
+ function files.writecardinal4(f,n)
+  local a=char(n%256)
+  n=rshift(n,8)
+  local b=char(n%256)
+  n=rshift(n,8)
+  local c=char(n%256)
+  n=rshift(n,8)
+  local d=char(n%256)
+  f:write(d,c,b,a)
+ end
+ function files.writecardinal2le(f,n)
+  local a=char(n%256)
+  n=rshift(n,8)
+  local b=char(n%256)
+  f:write(a,b)
+ end
+ function files.writecardinal4le(f,n)
+  local a=char(n%256)
+  n=rshift(n,8)
+  local b=char(n%256)
+  n=rshift(n,8)
+  local c=char(n%256)
+  n=rshift(n,8)
+  local d=char(n%256)
+  f:write(a,b,c,d)
+ end
+else
+ local floor=math.floor
+ function files.writecardinal2(f,n)
+  local a=char(n%256)
+  n=floor(n/256)
+  local b=char(n%256)
+  f:write(b,a)
+ end
+ function files.writecardinal4(f,n)
+  local a=char(n%256)
+  n=floor(n/256)
+  local b=char(n%256)
+  n=floor(n/256)
+  local c=char(n%256)
+  n=floor(n/256)
+  local d=char(n%256)
+  f:write(d,c,b,a)
+ end
+ function files.writecardinal2le(f,n)
+  local a=char(n%256)
+  n=floor(n/256)
+  local b=char(n%256)
+  f:write(a,b)
+ end
+ function files.writecardinal4le(f,n)
+  local a=char(n%256)
+  n=floor(n/256)
+  local b=char(n%256)
+  n=floor(n/256)
+  local c=char(n%256)
+  n=floor(n/256)
+  local d=char(n%256)
+  f:write(a,b,c,d)
+ end
+end
+function files.writestring(f,s)
+ f:write(char(byte(s,1,#s)))
+end
+function files.writebyte(f,b)
+ f:write(char(b))
+end
+if fio and fio.readcardinal1 then
+ files.readcardinal1=fio.readcardinal1
+ files.readcardinal2=fio.readcardinal2
+ files.readcardinal3=fio.readcardinal3
+ files.readcardinal4=fio.readcardinal4
+ files.readcardinal1le=fio.readcardinal1le or files.readcardinal1le
+ files.readcardinal2le=fio.readcardinal2le or files.readcardinal2le
+ files.readcardinal3le=fio.readcardinal3le or files.readcardinal3le
+ files.readcardinal4le=fio.readcardinal4le or files.readcardinal4le
+ files.readinteger1=fio.readinteger1
+ files.readinteger2=fio.readinteger2
+ files.readinteger3=fio.readinteger3
+ files.readinteger4=fio.readinteger4
+ files.readinteger1le=fio.readinteger1le or files.readinteger1le
+ files.readinteger2le=fio.readinteger2le or files.readinteger2le
+ files.readinteger3le=fio.readinteger3le or files.readinteger3le
+ files.readinteger4le=fio.readinteger4le or files.readinteger4le
+ files.readfixed2=fio.readfixed2
+ files.readfixed4=fio.readfixed4
+ files.read2dot14=fio.read2dot14
+ files.setposition=fio.setposition
+ files.getposition=fio.getposition
+ files.readbyte=files.readcardinal1
+ files.readsignedbyte=files.readinteger1
+ files.readcardinal=files.readcardinal1
+ files.readinteger=files.readinteger1
+ local skipposition=fio.skipposition
+ files.skipposition=skipposition
+ files.readbytes=fio.readbytes
+ files.readbytetable=fio.readbytetable
+ function files.skipshort(f,n)
+  skipposition(f,2*(n or 1))
+ end
+ function files.skiplong(f,n)
+  skipposition(f,4*(n or 1))
+ end
+end
+if fio and fio.writecardinal1 then
+ files.writecardinal1=fio.writecardinal1
+ files.writecardinal2=fio.writecardinal2
+ files.writecardinal3=fio.writecardinal3
+ files.writecardinal4=fio.writecardinal4
+ files.writecardinal1le=fio.writecardinal1le
+ files.writecardinal2le=fio.writecardinal2le
+ files.writecardinal3le=fio.writecardinal3le
+ files.writecardinal4le=fio.writecardinal4le
+ files.writeinteger1=fio.writeinteger1 or fio.writecardinal1
+ files.writeinteger2=fio.writeinteger2 or fio.writecardinal2
+ files.writeinteger3=fio.writeinteger3 or fio.writecardinal3
+ files.writeinteger4=fio.writeinteger4 or fio.writecardinal4
+ files.writeinteger1le=files.writeinteger1le or fio.writecardinal1le
+ files.writeinteger2le=files.writeinteger2le or fio.writecardinal2le
+ files.writeinteger3le=files.writeinteger3le or fio.writecardinal3le
+ files.writeinteger4le=files.writeinteger4le or fio.writecardinal4le
+end
+if fio and fio.readcardinaltable then
+ files.readcardinaltable=fio.readcardinaltable
+ files.readintegertable=fio.readintegertable
+else
+ local readcardinal1=files.readcardinal1
+ local readcardinal2=files.readcardinal2
+ local readcardinal3=files.readcardinal3
+ local readcardinal4=files.readcardinal4
+ function files.readcardinaltable(f,n,b)
+  local t={}
+   if b==1 then for i=1,n do t[i]=readcardinal1(f) end
+  elseif b==2 then for i=1,n do t[i]=readcardinal2(f) end
+  elseif b==3 then for i=1,n do t[i]=readcardinal3(f) end
+  elseif b==4 then for i=1,n do t[i]=readcardinal4(f) end end
+  return t
+ end
+ local readinteger1=files.readinteger1
+ local readinteger2=files.readinteger2
+ local readinteger3=files.readinteger3
+ local readinteger4=files.readinteger4
+ function files.readintegertable(f,n,b)
+  local t={}
+   if b==1 then for i=1,n do t[i]=readinteger1(f) end
+  elseif b==2 then for i=1,n do t[i]=readinteger2(f) end
+  elseif b==3 then for i=1,n do t[i]=readinteger3(f) end
+  elseif b==4 then for i=1,n do t[i]=readinteger4(f) end end
+  return t
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luat-basics-gen']={
+ version=1.100,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+--removed
+
+end
+local match,gmatch,gsub,lower=string.match,string.gmatch,string.gsub,string.lower
+local formatters,split,format,dump=string.formatters,string.split,string.format,string.dump
+local loadfile,type=loadfile,type
+local setmetatable,getmetatable,collectgarbage=setmetatable,getmetatable,collectgarbage
+local floor=math.floor
+local dummyfunction=function()
+end
+local dummyreporter=function(c)
+ return function(f,...)
+  local r=texio.reporter or texio.write_nl
+  if f then
+   r(c.." : "..(formatters or format)(f,...))
+  else
+   r("")
+  end
+ end
+end
+local dummyreport=function(c,f,...)
+ local r=texio.reporter or texio.write_nl
+ if f then
+  r(c.." : "..(formatters or format)(f,...))
+ else
+  r("")
+ end
+end
+statistics={
+ register=dummyfunction,
+ starttiming=dummyfunction,
+ stoptiming=dummyfunction,
+ elapsedtime=nil,
+}
+directives={
+ register=dummyfunction,
+ enable=dummyfunction,
+ disable=dummyfunction,
+}
+trackers={
+ register=dummyfunction,
+ enable=dummyfunction,
+ disable=dummyfunction,
+}
+experiments={
+ register=dummyfunction,
+ enable=dummyfunction,
+ disable=dummyfunction,
+}
+storage={ 
+ register=dummyfunction,
+ shared={},
+}
+logs={
+ new=dummyreporter,
+ reporter=dummyreporter,
+ messenger=dummyreporter,
+ report=dummyreport,
+}
+callbacks={
+ register=function(n,f)
+  return callback.register(n,f)
+ end,
+}
+utilities=utilities or {}
+utilities.storage=utilities.storage or {
+ allocate=function(t)
+  return t or {}
+ end,
+ mark=function(t)
+  return t or {}
+ end,
+}
+utilities.parsers=utilities.parsers or {
+ settings_to_array=function(s)
+  return split(s,",")
+ end,
+ settings_to_hash=function(s)
+  local t={}
+  for k,v in gmatch(s,"([^%s,=]+)=([^%s,]+)") do
+   t[k]=v
+  end
+  return t
+ end,
+ settings_to_hash_colon_too=function(s)
+  local t={}
+  for k,v in gmatch(s,"([^%s,=:]+)[=:]([^%s,]+)") do
+   t[k]=v
+  end
+  return t
+ end,
+}
+characters=characters or {
+ data={}
+}
+texconfig.kpse_init=true
+resolvers=resolvers or {} 
+local remapper={
+ otf="opentype fonts",
+ ttf="truetype fonts",
+ ttc="truetype fonts",
+ cid="cid maps",
+ cidmap="cid maps",
+ pfb="type1 fonts",
+ afm="afm",
+ enc="enc files",
+ lua="tex",
+}
+function resolvers.findfile(name,fileformat)
+ name=gsub(name,"\\","/")
+ if not fileformat or fileformat=="" then
+  fileformat=file.suffix(name)
+  if fileformat=="" then
+   fileformat="tex"
+  end
+ end
+ fileformat=lower(fileformat)
+ fileformat=remapper[fileformat] or fileformat
+ local found=kpse.find_file(name,fileformat)
+ if not found or found=="" then
+  found=kpse.find_file(name,"other text files")
+ end
+ return found
+end
+resolvers.findbinfile=resolvers.findfile
+function resolvers.loadbinfile(filename,filetype)
+ local data=io.loaddata(filename)
+ return true,data,#data
+end
+function resolvers.resolve(s)
+ return s
+end
+function resolvers.unresolve(s)
+ return s
+end
+caches={}
+local writable=nil
+local readables={}
+local usingjit=jit
+if not caches.namespace or caches.namespace=="" or caches.namespace=="context" then
+ caches.namespace='generic'
+end
+do
+ local cachepaths=kpse.expand_var('$TEXMFCACHE') or ""
+ if cachepaths=="" or cachepaths=="$TEXMFCACHE" then
+  cachepaths=kpse.expand_var('$TEXMFVAR') or ""
+ end
+ if cachepaths=="" or cachepaths=="$TEXMFVAR" then
+  cachepaths=kpse.expand_var('$VARTEXMF') or ""
+ end
+ if cachepaths=="" then
+  local fallbacks={ "TMPDIR","TEMPDIR","TMP","TEMP","HOME","HOMEPATH" }
+  for i=1,#fallbacks do
+   cachepaths=os.getenv(fallbacks[i]) or ""
+   if cachepath~="" and lfs.isdir(cachepath) then
+    break
+   end
+  end
+ end
+ if cachepaths=="" then
+  cachepaths="."
+ end
+ cachepaths=split(cachepaths,os.type=="windows" and ";" or ":")
+ for i=1,#cachepaths do
+  local cachepath=cachepaths[i]
+  if not lfs.isdir(cachepath) then
+   lfs.mkdirs(cachepath) 
+   if lfs.isdir(cachepath) then
+    logs.report("system","creating cache path '%s'",cachepath)
+   end
+  end
+  if file.is_writable(cachepath) then
+   writable=file.join(cachepath,"luatex-cache")
+   lfs.mkdir(writable)
+   writable=file.join(writable,caches.namespace)
+   lfs.mkdir(writable)
+   break
+  end
+ end
+ for i=1,#cachepaths do
+  if file.is_readable(cachepaths[i]) then
+   readables[#readables+1]=file.join(cachepaths[i],"luatex-cache",caches.namespace)
+  end
+ end
+ if not writable then
+  logs.report("system","no writeable cache path, quiting")
+  os.exit()
+ elseif #readables==0 then
+  logs.report("system","no readable cache path, quiting")
+  os.exit()
+ elseif #readables==1 and readables[1]==writable then
+  logs.report("system","using cache '%s'",writable)
+ else
+  logs.report("system","using write cache '%s'",writable)
+  logs.report("system","using read cache '%s'",table.concat(readables," "))
+ end
+end
+function caches.getwritablepath(category,subcategory)
+ local path=file.join(writable,category)
+ lfs.mkdir(path)
+ path=file.join(path,subcategory)
+ lfs.mkdir(path)
+ return path
+end
+function caches.getreadablepaths(category,subcategory)
+ local t={}
+ for i=1,#readables do
+  t[i]=file.join(readables[i],category,subcategory)
+ end
+ return t
+end
+local function makefullname(path,name)
+ if path and path~="" then
+  return file.addsuffix(file.join(path,name),"lua"),file.addsuffix(file.join(path,name),usingjit and "lub" or "luc")
+ end
+end
+function caches.is_writable(path,name)
+ local fullname=makefullname(path,name)
+ return fullname and file.is_writable(fullname)
+end
+function caches.loaddata(readables,name,writable)
+ for i=1,#readables do
+  local path=readables[i]
+  local loader=false
+  local luaname,lucname=makefullname(path,name)
+  if lfs.isfile(lucname) then
+   logs.report("system","loading luc file '%s'",lucname)
+   loader=loadfile(lucname)
+  end
+  if not loader and lfs.isfile(luaname) then
+   local luacrap,lucname=makefullname(writable,name)
+   logs.report("system","compiling luc file '%s'",lucname)
+   if lfs.isfile(lucname) then
+    loader=loadfile(lucname)
+   end
+   caches.compile(data,luaname,lucname)
+   if lfs.isfile(lucname) then
+    logs.report("system","loading luc file '%s'",lucname)
+    loader=loadfile(lucname)
+   else
+    logs.report("system","error in loading luc file '%s'",lucname)
+   end
+   if not loader then
+    logs.report("system","loading lua file '%s'",luaname)
+    loader=loadfile(luaname)
+   else
+    logs.report("system","error in loading lua file '%s'",luaname)
+   end
+  end
+  if loader then
+   loader=loader()
+   collectgarbage("step")
+   return loader
+  end
+ end
+ return false
+end
+function caches.savedata(path,name,data)
+ local luaname,lucname=makefullname(path,name)
+ if luaname then
+  logs.report("system","saving lua file '%s'",luaname)
+  table.tofile(luaname,data,true)
+  if lucname and type(caches.compile)=="function" then
+   os.remove(lucname) 
+   logs.report("system","saving luc file '%s'",lucname)
+   caches.compile(data,luaname,lucname)
+  end
+ end
+end
+function caches.compile(data,luaname,lucname)
+ local d=io.loaddata(luaname)
+ if not d or d=="" then
+  d=table.serialize(data,true) 
+ end
+ if d and d~="" then
+  local f=io.open(lucname,'wb')
+  if f then
+   local s=loadstring(d)
+   if s then
+    f:write(dump(s,true))
+   end
+   f:close()
+  end
+ end
+end
+function table.setmetatableindex(t,f)
+ if type(t)~="table" then
+  f,t=t,{}
+ end
+ local m=getmetatable(t)
+ if f=="table" then
+  f=function(t,k) local v={} t[k]=v return v end
+ end
+ if m then
+  m.__index=f
+ else
+  setmetatable(t,{ __index=f })
+ end
+ return t
+end
+function table.makeweak(t)
+ local m=getmetatable(t)
+ if m then
+  m.__mode="v"
+ else
+  setmetatable(t,{ __mode="v" })
+ end
+ return t
+end
+arguments={}
+if arg then
+ for i=1,#arg do
+  local k,v=match(arg[i],"^%-%-([^=]+)=?(.-)$")
+  if k and v then
+   arguments[k]=v
+  end
+ end
+end
+if not number.idiv then
+ function number.idiv(i,d)
+  return floor(i/d) 
+ end
+end
+local u=unicode and unicode.utf8
+if u then
+ utf.lower=u.lower
+ utf.upper=u.upper
+ utf.char=u.char
+ utf.byte=u.byte
+ utf.len=u.len
+ if lpeg.setutfcasers then
+  lpeg.setutfcasers(u.lower,u.upper)
+ end
+ local bytepairs=string.bytepairs
+ local utfchar=utf.char
+ local concat=table.concat
+ function utf.utf16_to_utf8_be(s)
+  if not s then
+   return nil
+  elseif s=="" then
+   return ""
+  end
+  local result,r,more={},0,0
+  for left,right in bytepairs(s) do
+   if right then
+    local now=256*left+right
+    if more>0 then
+     now=(more-0xD800)*0x400+(now-0xDC00)+0x10000
+     more=0
+     r=r+1
+     result[r]=utfchar(now)
+    elseif now>=0xD800 and now<=0xDBFF then
+     more=now
+    else
+     r=r+1
+     result[r]=utfchar(now)
+    end
+   end
+  end
+  return concat(result)
+ end
+ local characters=string.utfcharacters
+ function utf.split(str)
+  local t,n={},0
+  for s in characters(str) do
+   n=n+1
+   t[n]=s
+  end
+  return t
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['data-con']={
+ version=1.100,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local format,lower,gsub=string.format,string.lower,string.gsub
+local trace_cache=false  trackers.register("resolvers.cache",function(v) trace_cache=v end)
+local trace_containers=false  trackers.register("resolvers.containers",function(v) trace_containers=v end)
+local trace_storage=false  trackers.register("resolvers.storage",function(v) trace_storage=v end)
+containers=containers or {}
+local containers=containers
+containers.usecache=true
+local report_containers=logs.reporter("resolvers","containers")
+local allocated={}
+local mt={
+ __index=function(t,k)
+  if k=="writable" then
+   local writable=caches.getwritablepath(t.category,t.subcategory) or { "." }
+   t.writable=writable
+   return writable
+  elseif k=="readables" then
+   local readables=caches.getreadablepaths(t.category,t.subcategory) or { "." }
+   t.readables=readables
+   return readables
+  end
+ end,
+ __storage__=true
+}
+function containers.define(category,subcategory,version,enabled)
+ if category and subcategory then
+  local c=allocated[category]
+  if not c then
+   c={}
+   allocated[category]=c
+  end
+  local s=c[subcategory]
+  if not s then
+   s={
+    category=category,
+    subcategory=subcategory,
+    storage={},
+    enabled=enabled,
+    version=version or math.pi,
+    trace=false,
+   }
+   setmetatable(s,mt)
+   c[subcategory]=s
+  end
+  return s
+ end
+end
+function containers.is_usable(container,name)
+ return container.enabled and caches and caches.is_writable(container.writable,name)
+end
+function containers.is_valid(container,name)
+ if name and name~="" then
+  local storage=container.storage[name]
+  return storage and storage.cache_version==container.version
+ else
+  return false
+ end
+end
+function containers.read(container,name)
+ local storage=container.storage
+ local stored=storage[name]
+ if not stored and container.enabled and caches and containers.usecache then
+  stored=caches.loaddata(container.readables,name,container.writable)
+  if stored and stored.cache_version==container.version then
+   if trace_cache or trace_containers then
+    report_containers("action %a, category %a, name %a","load",container.subcategory,name)
+   end
+  else
+   stored=nil
+  end
+  storage[name]=stored
+ elseif stored then
+  if trace_cache or trace_containers then
+   report_containers("action %a, category %a, name %a","reuse",container.subcategory,name)
+  end
+ end
+ return stored
+end
+function containers.write(container,name,data)
+ if data then
+  data.cache_version=container.version
+  if container.enabled and caches then
+   local unique,shared=data.unique,data.shared
+   data.unique,data.shared=nil,nil
+   caches.savedata(container.writable,name,data)
+   if trace_cache or trace_containers then
+    report_containers("action %a, category %a, name %a","save",container.subcategory,name)
+   end
+   data.unique,data.shared=unique,shared
+  end
+  if trace_cache or trace_containers then
+   report_containers("action %a, category %a, name %a","store",container.subcategory,name)
+  end
+  container.storage[name]=data
+ end
+ return data
+end
+function containers.content(container,name)
+ return container.storage[name]
+end
+function containers.cleanname(name)
+ return (gsub(lower(name),"[^%w\128-\255]+","-")) 
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-fonts-nod']={
+ version=1.001,
+ comment="companion to luatex-fonts.lua",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+--removed
+
+end
+if tex.attribute[0]~=0 then
+ texio.write_nl("log","!")
+ texio.write_nl("log","! Attribute 0 is reserved for ConTeXt's font feature management and has to be")
+ texio.write_nl("log","! set to zero. Also, some attributes in the range 1-255 are used for special")
+ texio.write_nl("log","! purposes so setting them at the TeX end might break the font handler.")
+ texio.write_nl("log","!")
+ tex.attribute[0]=0 
+end
+attributes=attributes or {}
+attributes.unsetvalue=-0x7FFFFFFF
+local numbers,last={},127
+attributes.private=attributes.private or function(name)
+ local number=numbers[name]
+ if not number then
+  if last<255 then
+   last=last+1
+  end
+  number=last
+  numbers[name]=number
+ end
+ return number
+end
+nodes={}
+nodes.handlers={}
+local nodecodes={}
+local glyphcodes=node.subtypes("glyph")
+local disccodes=node.subtypes("disc")
+for k,v in next,node.types() do
+ v=string.gsub(v,"_","")
+ nodecodes[k]=v
+ nodecodes[v]=k
+end
+for k,v in next,glyphcodes do
+ glyphcodes[v]=k
+end
+for k,v in next,disccodes do
+ disccodes[v]=k
+end
+nodes.nodecodes=nodecodes
+nodes.glyphcodes=glyphcodes
+nodes.disccodes=disccodes
+nodes.handlers.protectglyphs=node.protect_glyphs   
+nodes.handlers.unprotectglyphs=node.unprotect_glyphs
+local direct=node.direct
+local nuts={}
+nodes.nuts=nuts
+local tonode=direct.tonode
+local tonut=direct.todirect
+nodes.tonode=tonode
+nodes.tonut=tonut
+nuts.tonode=tonode
+nuts.tonut=tonut
+nuts.getattr=direct.get_attribute
+nuts.getboth=direct.getboth
+nuts.getchar=direct.getchar
+nuts.getcomponents=direct.getcomponents
+nuts.getdirection=direct.getdirection
+nuts.getdisc=direct.getdisc
+nuts.getfield=direct.getfield
+nuts.getfont=direct.getfont
+nuts.getid=direct.getid
+nuts.getkern=direct.getkern
+nuts.getlist=direct.getlist
+nuts.getnext=direct.getnext
+nuts.getoffsets=direct.getoffsets
+nuts.getprev=direct.getprev
+nuts.getsubtype=direct.getsubtype
+nuts.getwidth=direct.getwidth
+nuts.setattr=direct.setfield
+nuts.setboth=direct.setboth
+nuts.setchar=direct.setchar
+nuts.setcomponents=direct.setcomponents
+nuts.setdirection=direct.setdirection
+nuts.setdisc=direct.setdisc
+nuts.setfield=setfield
+nuts.setkern=direct.setkern
+nuts.setlink=direct.setlink
+nuts.setlist=direct.setlist
+nuts.setnext=direct.setnext
+nuts.setoffsets=direct.setoffsets
+nuts.setprev=direct.setprev
+nuts.setsplit=direct.setsplit
+nuts.setsubtype=direct.setsubtype
+nuts.setwidth=direct.setwidth
+nuts.getglyphdata=nuts.getattr
+nuts.setglyphdata=nuts.setattr
+nuts.ischar=direct.is_char
+nuts.isglyph=direct.is_glyph
+nuts.copy=direct.copy
+nuts.copy_list=direct.copy_list
+nuts.copy_node=direct.copy
+nuts.delete=direct.delete
+nuts.end_of_math=direct.end_of_math
+nuts.flush=direct.flush
+nuts.flush_list=direct.flush_list
+nuts.flush_node=direct.flush_node
+nuts.free=direct.free
+nuts.insert_after=direct.insert_after
+nuts.insert_before=direct.insert_before
+nuts.is_node=direct.is_node
+nuts.kerning=direct.kerning
+nuts.ligaturing=direct.ligaturing
+nuts.new=direct.new
+nuts.remove=direct.remove
+nuts.tail=direct.tail
+nuts.traverse=direct.traverse
+nuts.traverse_char=direct.traverse_char
+nuts.traverse_glyph=direct.traverse_glyph
+nuts.traverse_id=direct.traverse_id
+local propertydata=direct.get_properties_table()
+nodes.properties={ data=propertydata }
+if direct.set_properties_mode then
+ direct.set_properties_mode(true,true)
+ function direct.set_properties_mode() end
+end
+nuts.getprop=function(n,k)
+ local p=propertydata[n]
+ if p then
+  return p[k]
+ end
+end
+nuts.setprop=function(n,k,v)
+ if v then
+  local p=propertydata[n]
+  if p then
+   p[k]=v
+  else
+   propertydata[n]={ [k]=v }
+  end
+ end
+end
+nodes.setprop=nodes.setproperty
+nodes.getprop=nodes.getproperty
+local setprev=nuts.setprev
+local setnext=nuts.setnext
+local getnext=nuts.getnext
+local setlink=nuts.setlink
+local getfield=nuts.getfield
+local setfield=nuts.setfield
+local getcomponents=nuts.getcomponents
+local setcomponents=nuts.setcomponents
+local find_tail=nuts.tail
+local flush_list=nuts.flush_list
+local flush_node=nuts.flush_node
+local traverse_id=nuts.traverse_id
+local copy_node=nuts.copy_node
+local glyph_code=nodes.nodecodes.glyph
+function nuts.copy_no_components(g,copyinjection)
+ local components=getcomponents(g)
+ if components then
+  setcomponents(g)
+  local n=copy_node(g)
+  if copyinjection then
+   copyinjection(n,g)
+  end
+  setcomponents(g,components)
+  return n
+ else
+  local n=copy_node(g)
+  if copyinjection then
+   copyinjection(n,g)
+  end
+  return n
+ end
+end
+function nuts.copy_only_glyphs(current)
+ local head=nil
+ local previous=nil
+ for n in traverse_id(glyph_code,current) do
+  n=copy_node(n)
+  if head then
+   setlink(previous,n)
+  else
+   head=n
+  end
+  previous=n
+ end
+ return head
+end
+nuts.uses_font=direct.uses_font
+do
+ local dummy=tonut(node.new("glyph"))
+ nuts.traversers={
+  glyph=nuts.traverse_id(nodecodes.glyph,dummy),
+  glue=nuts.traverse_id(nodecodes.glue,dummy),
+  disc=nuts.traverse_id(nodecodes.disc,dummy),
+  boundary=nuts.traverse_id(nodecodes.boundary,dummy),
+  char=nuts.traverse_char(dummy),
+  node=nuts.traverse(dummy),
+ }
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+
+characters=characters or {}
+characters.blockrange={}
+characters.classifiers={
+ [768]=5,
+ [769]=5,
+ [770]=5,
+ [771]=5,
+ [772]=5,
+ [773]=5,
+ [774]=5,
+ [775]=5,
+ [776]=5,
+ [777]=5,
+ [778]=5,
+ [779]=5,
+ [780]=5,
+ [781]=5,
+ [782]=5,
+ [783]=5,
+ [784]=5,
+ [785]=5,
+ [786]=5,
+ [787]=5,
+ [788]=5,
+ [789]=5,
+ [790]=5,
+ [791]=5,
+ [792]=5,
+ [793]=5,
+ [794]=5,
+ [795]=5,
+ [796]=5,
+ [797]=5,
+ [798]=5,
+ [799]=5,
+ [800]=5,
+ [801]=5,
+ [802]=5,
+ [803]=5,
+ [804]=5,
+ [805]=5,
+ [806]=5,
+ [807]=5,
+ [808]=5,
+ [809]=5,
+ [810]=5,
+ [811]=5,
+ [812]=5,
+ [813]=5,
+ [814]=5,
+ [815]=5,
+ [816]=5,
+ [817]=5,
+ [818]=5,
+ [819]=5,
+ [820]=5,
+ [821]=5,
+ [822]=5,
+ [823]=5,
+ [824]=5,
+ [825]=5,
+ [826]=5,
+ [827]=5,
+ [828]=5,
+ [829]=5,
+ [830]=5,
+ [831]=5,
+ [832]=5,
+ [833]=5,
+ [834]=5,
+ [835]=5,
+ [836]=5,
+ [837]=5,
+ [838]=5,
+ [839]=5,
+ [840]=5,
+ [841]=5,
+ [842]=5,
+ [843]=5,
+ [844]=5,
+ [845]=5,
+ [846]=5,
+ [847]=5,
+ [848]=5,
+ [849]=5,
+ [850]=5,
+ [851]=5,
+ [852]=5,
+ [853]=5,
+ [854]=5,
+ [855]=5,
+ [856]=5,
+ [857]=5,
+ [858]=5,
+ [859]=5,
+ [860]=5,
+ [861]=5,
+ [862]=5,
+ [863]=5,
+ [864]=5,
+ [865]=5,
+ [866]=5,
+ [867]=5,
+ [868]=5,
+ [869]=5,
+ [870]=5,
+ [871]=5,
+ [872]=5,
+ [873]=5,
+ [874]=5,
+ [875]=5,
+ [876]=5,
+ [877]=5,
+ [878]=5,
+ [879]=5,
+ [1155]=5,
+ [1156]=5,
+ [1157]=5,
+ [1158]=5,
+ [1159]=5,
+ [1425]=5,
+ [1426]=5,
+ [1427]=5,
+ [1428]=5,
+ [1429]=5,
+ [1430]=5,
+ [1431]=5,
+ [1432]=5,
+ [1433]=5,
+ [1434]=5,
+ [1435]=5,
+ [1436]=5,
+ [1437]=5,
+ [1438]=5,
+ [1439]=5,
+ [1440]=5,
+ [1441]=5,
+ [1442]=5,
+ [1443]=5,
+ [1444]=5,
+ [1445]=5,
+ [1446]=5,
+ [1447]=5,
+ [1448]=5,
+ [1449]=5,
+ [1450]=5,
+ [1451]=5,
+ [1452]=5,
+ [1453]=5,
+ [1454]=5,
+ [1455]=5,
+ [1456]=5,
+ [1457]=5,
+ [1458]=5,
+ [1459]=5,
+ [1460]=5,
+ [1461]=5,
+ [1462]=5,
+ [1463]=5,
+ [1464]=5,
+ [1465]=5,
+ [1466]=5,
+ [1467]=5,
+ [1468]=5,
+ [1469]=5,
+ [1471]=5,
+ [1473]=5,
+ [1474]=5,
+ [1476]=5,
+ [1477]=5,
+ [1479]=5,
+ [1536]=4,
+ [1537]=4,
+ [1538]=4,
+ [1539]=4,
+ [1540]=4,
+ [1541]=4,
+ [1542]=6,
+ [1543]=6,
+ [1544]=4,
+ [1545]=6,
+ [1546]=6,
+ [1547]=4,
+ [1548]=6,
+ [1549]=6,
+ [1550]=6,
+ [1551]=6,
+ [1552]=5,
+ [1553]=5,
+ [1554]=5,
+ [1555]=5,
+ [1556]=5,
+ [1557]=5,
+ [1558]=5,
+ [1559]=5,
+ [1560]=5,
+ [1561]=5,
+ [1562]=5,
+ [1563]=6,
+ [1564]=6,
+ [1566]=6,
+ [1567]=6,
+ [1568]=2,
+ [1569]=4,
+ [1570]=3,
+ [1571]=3,
+ [1572]=3,
+ [1573]=3,
+ [1574]=2,
+ [1575]=3,
+ [1576]=2,
+ [1577]=3,
+ [1578]=2,
+ [1579]=2,
+ [1580]=2,
+ [1581]=2,
+ [1582]=2,
+ [1583]=3,
+ [1584]=3,
+ [1585]=3,
+ [1586]=3,
+ [1587]=2,
+ [1588]=2,
+ [1589]=2,
+ [1590]=2,
+ [1591]=2,
+ [1592]=2,
+ [1593]=2,
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+ [1599]=2,
+ [1600]=2,
+ [1601]=2,
+ [1602]=2,
+ [1603]=2,
+ [1604]=2,
+ [1605]=2,
+ [1606]=2,
+ [1607]=2,
+ [1608]=3,
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+ [1610]=2,
+ [1611]=5,
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+ [1622]=5,
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+ [1632]=6,
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+ [1640]=6,
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+ [1645]=6,
+ [1646]=2,
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+ [1648]=5,
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+ [1651]=3,
+ [1652]=4,
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+ [1672]=3,
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+ [1700]=2,
+ [1701]=2,
+ [1702]=2,
+ [1703]=2,
+ [1704]=2,
+ [1705]=2,
+ [1706]=2,
+ [1707]=2,
+ [1708]=2,
+ [1709]=2,
+ [1710]=2,
+ [1711]=2,
+ [1712]=2,
+ [1713]=2,
+ [1714]=2,
+ [1715]=2,
+ [1716]=2,
+ [1717]=2,
+ [1718]=2,
+ [1719]=2,
+ [1720]=2,
+ [1721]=2,
+ [1722]=2,
+ [1723]=2,
+ [1724]=2,
+ [1725]=2,
+ [1726]=2,
+ [1727]=2,
+ [1728]=3,
+ [1729]=2,
+ [1730]=2,
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+ [1736]=3,
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+ [1740]=2,
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+ [1744]=2,
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+ [1746]=3,
+ [1747]=3,
+ [1748]=6,
+ [1749]=3,
+ [1750]=5,
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+ [1757]=4,
+ [1758]=6,
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+ [1774]=3,
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+ [1776]=6,
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+ [1786]=2,
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+ [1799]=6,
+ [1800]=6,
+ [1801]=6,
+ [1802]=6,
+ [1803]=6,
+ [1804]=6,
+ [1805]=6,
+ [1808]=3,
+ [1809]=5,
+ [1810]=2,
+ [1811]=2,
+ [1812]=2,
+ [1813]=3,
+ [1814]=3,
+ [1815]=3,
+ [1816]=3,
+ [1817]=3,
+ [1818]=2,
+ [1819]=2,
+ [1820]=2,
+ [1821]=2,
+ [1822]=3,
+ [1823]=2,
+ [1824]=2,
+ [1825]=2,
+ [1826]=2,
+ [1827]=2,
+ [1828]=2,
+ [1829]=2,
+ [1830]=2,
+ [1831]=2,
+ [1832]=3,
+ [1833]=2,
+ [1834]=3,
+ [1835]=2,
+ [1836]=3,
+ [1837]=2,
+ [1838]=2,
+ [1839]=3,
+ [1840]=5,
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+ [1842]=5,
+ [1843]=5,
+ [1844]=5,
+ [1845]=5,
+ [1846]=5,
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+ [1848]=5,
+ [1849]=5,
+ [1850]=5,
+ [1851]=5,
+ [1852]=5,
+ [1853]=5,
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+ [1855]=5,
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+ [1858]=5,
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+ [1866]=5,
+ [1869]=3,
+ [1870]=2,
+ [1871]=2,
+ [1872]=2,
+ [1873]=2,
+ [1874]=2,
+ [1875]=2,
+ [1876]=2,
+ [1877]=2,
+ [1878]=2,
+ [1879]=2,
+ [1880]=2,
+ [1881]=3,
+ [1882]=3,
+ [1883]=3,
+ [1884]=2,
+ [1885]=2,
+ [1886]=2,
+ [1887]=2,
+ [1888]=2,
+ [1889]=2,
+ [1890]=2,
+ [1891]=2,
+ [1892]=2,
+ [1893]=2,
+ [1894]=2,
+ [1895]=2,
+ [1896]=2,
+ [1897]=2,
+ [1898]=2,
+ [1899]=3,
+ [1900]=3,
+ [1901]=2,
+ [1902]=2,
+ [1903]=2,
+ [1904]=2,
+ [1905]=3,
+ [1906]=2,
+ [1907]=3,
+ [1908]=3,
+ [1909]=2,
+ [1910]=2,
+ [1911]=2,
+ [1912]=3,
+ [1913]=3,
+ [1914]=2,
+ [1915]=2,
+ [1916]=2,
+ [1917]=2,
+ [1918]=2,
+ [1919]=2,
+ [1958]=5,
+ [1959]=5,
+ [1960]=5,
+ [1961]=5,
+ [1962]=5,
+ [1963]=5,
+ [1964]=5,
+ [1965]=5,
+ [1966]=5,
+ [1967]=5,
+ [1968]=5,
+ [1984]=6,
+ [1985]=6,
+ [1986]=6,
+ [1987]=6,
+ [1988]=6,
+ [1989]=6,
+ [1990]=6,
+ [1991]=6,
+ [1992]=6,
+ [1993]=6,
+ [1994]=2,
+ [1995]=2,
+ [1996]=2,
+ [1997]=2,
+ [1998]=2,
+ [1999]=2,
+ [2000]=2,
+ [2001]=2,
+ [2002]=2,
+ [2003]=2,
+ [2004]=2,
+ [2005]=2,
+ [2006]=2,
+ [2007]=2,
+ [2008]=2,
+ [2009]=2,
+ [2010]=2,
+ [2011]=2,
+ [2012]=2,
+ [2013]=2,
+ [2014]=2,
+ [2015]=2,
+ [2016]=2,
+ [2017]=2,
+ [2018]=2,
+ [2019]=2,
+ [2020]=2,
+ [2021]=2,
+ [2022]=2,
+ [2023]=2,
+ [2024]=2,
+ [2025]=2,
+ [2026]=2,
+ [2027]=5,
+ [2028]=5,
+ [2029]=5,
+ [2030]=5,
+ [2031]=5,
+ [2032]=5,
+ [2033]=5,
+ [2034]=5,
+ [2035]=5,
+ [2036]=6,
+ [2037]=6,
+ [2038]=6,
+ [2039]=6,
+ [2040]=6,
+ [2041]=6,
+ [2042]=2,
+ [2045]=5,
+ [2046]=6,
+ [2047]=6,
+ [2070]=5,
+ [2071]=5,
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+ [2073]=5,
+ [2075]=5,
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+ [2087]=5,
+ [2089]=5,
+ [2090]=5,
+ [2091]=5,
+ [2092]=5,
+ [2093]=5,
+ [2112]=3,
+ [2113]=2,
+ [2114]=2,
+ [2115]=2,
+ [2116]=2,
+ [2117]=2,
+ [2118]=3,
+ [2119]=3,
+ [2120]=2,
+ [2121]=3,
+ [2122]=2,
+ [2123]=2,
+ [2124]=2,
+ [2125]=2,
+ [2126]=2,
+ [2127]=2,
+ [2128]=2,
+ [2129]=2,
+ [2130]=2,
+ [2131]=2,
+ [2132]=3,
+ [2133]=2,
+ [2134]=4,
+ [2135]=4,
+ [2136]=4,
+ [2137]=5,
+ [2138]=5,
+ [2139]=5,
+ [2144]=2,
+ [2145]=4,
+ [2146]=2,
+ [2147]=2,
+ [2148]=2,
+ [2149]=2,
+ [2150]=4,
+ [2151]=3,
+ [2152]=2,
+ [2153]=3,
+ [2154]=3,
+ [2208]=2,
+ [2209]=2,
+ [2210]=2,
+ [2211]=2,
+ [2212]=2,
+ [2213]=2,
+ [2214]=2,
+ [2215]=2,
+ [2216]=2,
+ [2217]=2,
+ [2218]=3,
+ [2219]=3,
+ [2220]=3,
+ [2221]=4,
+ [2222]=3,
+ [2223]=2,
+ [2224]=2,
+ [2225]=3,
+ [2226]=3,
+ [2227]=2,
+ [2228]=2,
+ [2230]=2,
+ [2231]=2,
+ [2232]=2,
+ [2233]=3,
+ [2234]=2,
+ [2235]=2,
+ [2236]=2,
+ [2237]=2,
+ [2259]=5,
+ [2260]=5,
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+ [2264]=5,
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+ [2270]=5,
+ [2271]=5,
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+ [2273]=5,
+ [2274]=4,
+ [2275]=5,
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+ [2277]=5,
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+ [2299]=5,
+ [2300]=5,
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+ [2302]=5,
+ [2303]=5,
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+ [2305]=5,
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+ [3157]=5,
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+ [4010]=5,
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+ [4015]=5,
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+ [4018]=5,
+ [4019]=5,
+ [4020]=5,
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+ [4027]=5,
+ [4028]=5,
+ [4038]=5,
+ [4141]=5,
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+ [4143]=5,
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+ [4146]=5,
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+ [4148]=5,
+ [4149]=5,
+ [4150]=5,
+ [4151]=5,
+ [4153]=5,
+ [4154]=5,
+ [4157]=5,
+ [4158]=5,
+ [4184]=5,
+ [4185]=5,
+ [4190]=5,
+ [4191]=5,
+ [4192]=5,
+ [4209]=5,
+ [4210]=5,
+ [4211]=5,
+ [4212]=5,
+ [4226]=5,
+ [4229]=5,
+ [4230]=5,
+ [4237]=5,
+ [4253]=5,
+ [4957]=5,
+ [4958]=5,
+ [4959]=5,
+ [5906]=5,
+ [5907]=5,
+ [5908]=5,
+ [5938]=5,
+ [5939]=5,
+ [5940]=5,
+ [5970]=5,
+ [5971]=5,
+ [6002]=5,
+ [6003]=5,
+ [6071]=5,
+ [6072]=5,
+ [6073]=5,
+ [6074]=5,
+ [6075]=5,
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+ [6086]=5,
+ [6089]=5,
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+ [6093]=5,
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+ [6095]=5,
+ [6096]=5,
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+ [6099]=5,
+ [6109]=5,
+ [6150]=4,
+ [6151]=2,
+ [6154]=2,
+ [6155]=5,
+ [6156]=5,
+ [6157]=5,
+ [6158]=4,
+ [6176]=2,
+ [6177]=2,
+ [6178]=2,
+ [6179]=2,
+ [6180]=2,
+ [6181]=2,
+ [6182]=2,
+ [6183]=2,
+ [6184]=2,
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+  [43489]=true,
+  [43490]=true,
+  [43491]=true,
+  [43492]=true,
+  [43495]=true,
+  [43496]=true,
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+  [43498]=true,
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+  [43501]=true,
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+  [43636]=true,
+  [43637]=true,
+  [43638]=true,
+  [43642]=true,
+  [43646]=true,
+  [43647]=true,
+ },
+ ["dependent_vowel"]={
+  [2362]=true,
+  [2363]=true,
+  [2366]=true,
+  [2367]=true,
+  [2368]=true,
+  [2369]=true,
+  [2370]=true,
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+  [3170]=true,
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+  [3298]=true,
+  [3299]=true,
+  [3390]=true,
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+  [3392]=true,
+  [3393]=true,
+  [3394]=true,
+  [3395]=true,
+  [3396]=true,
+  [3398]=true,
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+  [3400]=true,
+  [3402]=true,
+  [3403]=true,
+  [3404]=true,
+  [3415]=true,
+  [3426]=true,
+  [3427]=true,
+  [4139]=true,
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+  [4141]=true,
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+  [4145]=true,
+  [4146]=true,
+  [4147]=true,
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+  [4182]=true,
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+  [4210]=true,
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+  [4228]=true,
+  [4229]=true,
+  [4230]=true,
+  [4252]=true,
+  [4253]=true,
+  [43493]=true,
+ },
+ ["halant"]={
+  [2381]=true,
+  [2509]=true,
+  [2637]=true,
+  [2765]=true,
+  [2893]=true,
+  [3021]=true,
+  [3149]=true,
+  [3277]=true,
+  [3405]=true,
+ },
+ ["independent_vowel"]={
+  [2308]=true,
+  [2309]=true,
+  [2310]=true,
+  [2311]=true,
+  [2312]=true,
+  [2313]=true,
+  [2314]=true,
+  [2315]=true,
+  [2316]=true,
+  [2317]=true,
+  [2318]=true,
+  [2319]=true,
+  [2320]=true,
+  [2321]=true,
+  [2322]=true,
+  [2323]=true,
+  [2324]=true,
+  [2400]=true,
+  [2401]=true,
+  [2418]=true,
+  [2419]=true,
+  [2420]=true,
+  [2421]=true,
+  [2422]=true,
+  [2423]=true,
+  [2437]=true,
+  [2438]=true,
+  [2439]=true,
+  [2440]=true,
+  [2441]=true,
+  [2442]=true,
+  [2443]=true,
+  [2444]=true,
+  [2447]=true,
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+  [2451]=true,
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+  [2528]=true,
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+  [2700]=true,
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+  [2704]=true,
+  [2705]=true,
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+  [2821]=true,
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+  [2826]=true,
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+  [2835]=true,
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+  [2912]=true,
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+  [2950]=true,
+  [2951]=true,
+  [2952]=true,
+  [2953]=true,
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+  [2958]=true,
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+  [2960]=true,
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+  [2964]=true,
+  [3077]=true,
+  [3078]=true,
+  [3079]=true,
+  [3080]=true,
+  [3081]=true,
+  [3082]=true,
+  [3083]=true,
+  [3084]=true,
+  [3086]=true,
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+  [3088]=true,
+  [3090]=true,
+  [3091]=true,
+  [3092]=true,
+  [3168]=true,
+  [3169]=true,
+  [3205]=true,
+  [3206]=true,
+  [3207]=true,
+  [3208]=true,
+  [3209]=true,
+  [3210]=true,
+  [3211]=true,
+  [3212]=true,
+  [3214]=true,
+  [3215]=true,
+  [3216]=true,
+  [3218]=true,
+  [3219]=true,
+  [3220]=true,
+  [3296]=true,
+  [3297]=true,
+  [3333]=true,
+  [3334]=true,
+  [3335]=true,
+  [3336]=true,
+  [3337]=true,
+  [3338]=true,
+  [3339]=true,
+  [3340]=true,
+  [3342]=true,
+  [3343]=true,
+  [3344]=true,
+  [3346]=true,
+  [3347]=true,
+  [3348]=true,
+  [3423]=true,
+  [3424]=true,
+  [3425]=true,
+  [4129]=true,
+  [4130]=true,
+  [4131]=true,
+  [4132]=true,
+  [4133]=true,
+  [4134]=true,
+  [4135]=true,
+  [4136]=true,
+  [4137]=true,
+  [4138]=true,
+  [4178]=true,
+  [4179]=true,
+  [4180]=true,
+  [4181]=true,
+ },
+ ["nukta"]={
+  [2364]=true,
+  [2492]=true,
+  [2620]=true,
+  [2748]=true,
+  [2876]=true,
+  [3260]=true,
+ },
+ ["post_mark"]={
+  [2307]=true,
+  [2363]=true,
+  [2366]=true,
+  [2368]=true,
+  [2377]=true,
+  [2378]=true,
+  [2379]=true,
+  [2380]=true,
+  [2383]=true,
+  [2494]=true,
+  [2496]=true,
+  [2622]=true,
+  [2624]=true,
+  [2750]=true,
+  [2752]=true,
+  [2761]=true,
+  [2763]=true,
+  [2764]=true,
+  [2878]=true,
+  [2880]=true,
+  [3006]=true,
+  [3007]=true,
+  [3137]=true,
+  [3138]=true,
+  [3139]=true,
+  [3140]=true,
+  [3262]=true,
+  [3265]=true,
+  [3266]=true,
+  [3267]=true,
+  [3268]=true,
+  [3276]=true,
+  [3285]=true,
+  [3390]=true,
+  [3391]=true,
+  [3392]=true,
+  [3393]=true,
+  [3394]=true,
+  [3395]=true,
+  [3396]=true,
+  [3415]=true,
+  [4139]=true,
+  [4140]=true,
+  [4152]=true,
+  [4155]=true,
+  [4182]=true,
+  [4183]=true,
+  [4194]=true,
+  [4195]=true,
+  [4196]=true,
+  [4199]=true,
+  [4200]=true,
+  [4201]=true,
+  [4202]=true,
+  [4203]=true,
+  [4204]=true,
+  [4205]=true,
+  [4227]=true,
+  [4231]=true,
+  [4232]=true,
+  [4233]=true,
+  [4234]=true,
+  [4235]=true,
+  [4236]=true,
+  [4239]=true,
+  [4250]=true,
+  [4251]=true,
+  [4252]=true,
+  [43643]=true,
+  [43645]=true,
+ },
+ ["pre_mark"]={
+  [2367]=true,
+  [2382]=true,
+  [2495]=true,
+  [2503]=true,
+  [2504]=true,
+  [2623]=true,
+  [2751]=true,
+  [2887]=true,
+  [3014]=true,
+  [3015]=true,
+  [3016]=true,
+  [3398]=true,
+  [3399]=true,
+  [3400]=true,
+  [4145]=true,
+  [4228]=true,
+ },
+ ["ra"]={
+  [2352]=true,
+  [2480]=true,
+  [2544]=true,
+  [2608]=true,
+  [2736]=true,
+  [2864]=true,
+  [2992]=true,
+  [3120]=true,
+  [3248]=true,
+  [3376]=true,
+ },
+ ["stress_tone_mark"]={
+  [2385]=true,
+  [2386]=true,
+  [2387]=true,
+  [2388]=true,
+  [4151]=true,
+  [4195]=true,
+  [4196]=true,
+  [4201]=true,
+  [4202]=true,
+  [4203]=true,
+  [4204]=true,
+  [4205]=true,
+  [4231]=true,
+  [4232]=true,
+  [4233]=true,
+  [4234]=true,
+  [4235]=true,
+  [4236]=true,
+  [4237]=true,
+  [4239]=true,
+  [4250]=true,
+  [4251]=true,
+  [43643]=true,
+  [43644]=true,
+  [43645]=true,
+ },
+ ["twopart_mark"]={
+  [2507]={ 2503,2494 },
+  [2508]={ 2503,2519 },
+  [2888]={ 2887,2902 },
+  [2891]={ 2887,2878 },
+  [2892]={ 2887,2903 },
+  [3018]={ 3014,3006 },
+  [3019]={ 3015,3006 },
+  [3020]={ 3014,3031 },
+  [3144]={ 3142,3158 },
+  [3264]={ 3263,3285 },
+  [3271]={ 3270,3285 },
+  [3272]={ 3270,3286 },
+  [3274]={ 3270,3266 },
+  [3275]={ 3274,3285 },
+  [3402]={ 3398,3390 },
+  [3403]={ 3399,3390 },
+  [3404]={ 3398,3415 },
+ },
+ ["vowel_modifier"]={
+  [2304]=true,
+  [2305]=true,
+  [2306]=true,
+  [2307]=true,
+  [2433]=true,
+  [3330]=true,
+  [3331]=true,
+  [4150]=true,
+  [4152]=true,
+  [4153]=true,
+  [4154]=true,
+  [43232]=true,
+  [43233]=true,
+  [43234]=true,
+  [43235]=true,
+  [43236]=true,
+  [43237]=true,
+  [43238]=true,
+  [43239]=true,
+  [43240]=true,
+  [43241]=true,
+  [43242]=true,
+  [43243]=true,
+  [43244]=true,
+  [43245]=true,
+  [43246]=true,
+  [43247]=true,
+  [43249]=true,
+ },
+}
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-ini']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local allocate=utilities.storage.allocate
+local sortedhash=table.sortedhash
+fonts=fonts or {}
+local fonts=fonts
+local identifiers=allocate()
+fonts.hashes=fonts.hashes  or { identifiers=identifiers }
+fonts.tables=fonts.tables  or {}
+fonts.helpers=fonts.helpers or {}
+fonts.tracers=fonts.tracers or {} 
+fonts.specifiers=fonts.specifiers or {} 
+fonts.analyzers={} 
+fonts.readers={}
+fonts.definers={ methods={} }
+fonts.loggers={ register=function() end }
+if context then
+
+--removed
+
+end
+fonts.privateoffsets={
+ textbase=0xF0000,
+ textextrabase=0xFD000,
+ mathextrabase=0xFE000,
+ mathbase=0xFF000,
+ keepnames=false,
+}
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-font-mis']={
+ version=1.001,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+--removed
+
+end
+local currentfont=font.current
+local hashes=fonts.hashes
+local identifiers=hashes.identifiers or {}
+local marks=hashes.marks    or {}
+hashes.identifiers=identifiers
+hashes.marks=marks
+table.setmetatableindex(marks,function(t,k)
+ if k==true then
+  return marks[currentfont()]
+ else
+  local resources=identifiers[k].resources or {}
+  local marks=resources.marks or {}
+  t[k]=marks
+  return marks
+ end
+end)
+function font.each()
+ return table.sortedhash(fonts.hashes.identifiers)
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-con']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local next,tostring,tonumber,rawget=next,tostring,tonumber,rawget
+local format,match,lower,gsub,find=string.format,string.match,string.lower,string.gsub,string.find
+local sort,insert,concat=table.sort,table.insert,table.concat
+local sortedkeys,sortedhash,serialize,fastcopy=table.sortedkeys,table.sortedhash,table.serialize,table.fastcopy
+local derivetable=table.derive
+local ioflush=io.flush
+local round=math.round
+local setmetatable,getmetatable,rawget,rawset=setmetatable,getmetatable,rawget,rawset
+local trace_defining=false  trackers.register("fonts.defining",function(v) trace_defining=v end)
+local trace_scaling=false  trackers.register("fonts.scaling",function(v) trace_scaling=v end)
+local report_defining=logs.reporter("fonts","defining")
+local fonts=fonts
+local constructors=fonts.constructors or {}
+fonts.constructors=constructors
+local handlers=fonts.handlers or {} 
+fonts.handlers=handlers
+local allocate=utilities.storage.allocate
+local setmetatableindex=table.setmetatableindex
+constructors.dontembed=allocate()
+constructors.autocleanup=true
+constructors.namemode="fullpath" 
+constructors.version=1.01
+constructors.cache=containers.define("fonts","constructors",constructors.version,false)
+constructors.privateoffset=fonts.privateoffsets.textbase or 0xF0000
+constructors.cacheintex=true 
+constructors.addtounicode=true
+local designsizes=allocate()
+constructors.designsizes=designsizes
+local loadedfonts=allocate()
+constructors.loadedfonts=loadedfonts
+local factors={
+ pt=65536.0,
+ bp=65781.8,
+}
+function constructors.setfactor(f)
+ constructors.factor=factors[f or 'pt'] or factors.pt
+end
+constructors.setfactor()
+function constructors.scaled(scaledpoints,designsize) 
+ if scaledpoints<0 then
+  local factor=constructors.factor
+  if designsize then
+   if designsize>factor then 
+    return (- scaledpoints/1000)*designsize 
+   else
+    return (- scaledpoints/1000)*designsize*factor
+   end
+  else
+   return (- scaledpoints/1000)*10*factor
+  end
+ else
+  return scaledpoints
+ end
+end
+function constructors.getprivate(tfmdata)
+ local properties=tfmdata.properties
+ local private=properties.private
+ properties.private=private+1
+ return private
+end
+function constructors.setmathparameter(tfmdata,name,value)
+ local m=tfmdata.mathparameters
+ local c=tfmdata.MathConstants
+ if m then
+  m[name]=value
+ end
+ if c and c~=m then
+  c[name]=value
+ end
+end
+function constructors.getmathparameter(tfmdata,name)
+ local p=tfmdata.mathparameters or tfmdata.MathConstants
+ if p then
+  return p[name]
+ end
+end
+function constructors.cleanuptable(tfmdata)
+ if constructors.autocleanup and tfmdata.properties.virtualized then
+  for k,v in next,tfmdata.characters do
+   if v.commands then v.commands=nil end
+  end
+ end
+end
+function constructors.calculatescale(tfmdata,scaledpoints)
+ local parameters=tfmdata.parameters
+ if scaledpoints<0 then
+  scaledpoints=(- scaledpoints/1000)*(tfmdata.designsize or parameters.designsize) 
+ end
+ return scaledpoints,scaledpoints/(parameters.units or 1000) 
+end
+local unscaled={
+ ScriptPercentScaleDown=true,
+ ScriptScriptPercentScaleDown=true,
+ RadicalDegreeBottomRaisePercent=true,
+ NoLimitSupFactor=true,
+ NoLimitSubFactor=true,
+}
+function constructors.assignmathparameters(target,original)
+ local mathparameters=original.mathparameters
+ if mathparameters and next(mathparameters) then
+  local targetparameters=target.parameters
+  local targetproperties=target.properties
+  local targetmathparameters={}
+  local factor=targetproperties.math_is_scaled and 1 or targetparameters.factor
+  for name,value in next,mathparameters do
+   if unscaled[name] then
+    targetmathparameters[name]=value
+   else
+    targetmathparameters[name]=value*factor
+   end
+  end
+  if not targetmathparameters.FractionDelimiterSize then
+   targetmathparameters.FractionDelimiterSize=1.01*targetparameters.size
+  end
+  if not mathparameters.FractionDelimiterDisplayStyleSize then
+   targetmathparameters.FractionDelimiterDisplayStyleSize=2.40*targetparameters.size
+  end
+  target.mathparameters=targetmathparameters
+ end
+end
+function constructors.beforecopyingcharacters(target,original)
+end
+function constructors.aftercopyingcharacters(target,original)
+end
+constructors.sharefonts=false
+constructors.nofsharedfonts=0
+local sharednames={}
+function constructors.trytosharefont(target,tfmdata)
+ if constructors.sharefonts then 
+  local characters=target.characters
+  local n=1
+  local t={ target.psname }
+  local u=sortedkeys(characters)
+  for i=1,#u do
+   local k=u[i]
+   n=n+1;t[n]=k
+   n=n+1;t[n]=characters[k].index or k
+  end
+  local h=md5.HEX(concat(t," "))
+  local s=sharednames[h]
+  if s then
+   if trace_defining then
+    report_defining("font %a uses backend resources of font %a",target.fullname,s)
+   end
+   target.fullname=s
+   constructors.nofsharedfonts=constructors.nofsharedfonts+1
+   target.properties.sharedwith=s
+  else
+   sharednames[h]=target.fullname
+  end
+ end
+end
+local synonyms={
+ exheight="x_height",
+ xheight="x_height",
+ ex="x_height",
+ emwidth="quad",
+ em="quad",
+ spacestretch="space_stretch",
+ stretch="space_stretch",
+ spaceshrink="space_shrink",
+ shrink="space_shrink",
+ extraspace="extra_space",
+ xspace="extra_space",
+ slantperpoint="slant",
+}
+function constructors.enhanceparameters(parameters)
+ local mt=getmetatable(parameters)
+ local getter=function(t,k)
+  if not k then
+   return nil
+  end
+  local s=synonyms[k]
+  if s then
+   return rawget(t,s) or (mt and mt[s]) or nil
+  end
+  if k=="spacing" then
+   return {
+    width=t.space,
+    stretch=t.space_stretch,
+    shrink=t.space_shrink,
+    extra=t.extra_space,
+   }
+  end
+  return mt and mt[k] or nil
+ end
+ local setter=function(t,k,v)
+  if not k then
+   return 0
+  end
+  local s=synonyms[k]
+  if s then
+   rawset(t,s,v)
+  elseif k=="spacing" then
+   if type(v)=="table" then
+    rawset(t,"space",v.width or 0)
+    rawset(t,"space_stretch",v.stretch or 0)
+    rawset(t,"space_shrink",v.shrink or 0)
+    rawset(t,"extra_space",v.extra or 0)
+   end
+  else
+   rawset(t,k,v)
+  end
+ end
+ setmetatable(parameters,{
+  __index=getter,
+  __newindex=setter,
+ })
+end
+local function mathkerns(v,vdelta)
+ local k={}
+ for i=1,#v do
+  local entry=v[i]
+  local height=entry.height
+  local kern=entry.kern
+  k[i]={
+   height=height and vdelta*height or 0,
+   kern=kern   and vdelta*kern   or 0,
+  }
+ end
+ return k
+end
+local psfake=0
+local function fixedpsname(psname,fallback)
+ local usedname=psname
+ if psname and psname~="" then
+  if find(psname," ",1,true) then
+   usedname=gsub(psname,"[%s]+","-")
+  else
+  end
+ elseif not fallback or fallback=="" then
+  psfake=psfake+1
+  psname="fakename-"..psfake
+ else
+  psname=fallback
+  usedname=gsub(psname,"[^a-zA-Z0-9]+","-")
+ end
+ return usedname,psname~=usedname
+end
+function constructors.scale(tfmdata,specification)
+ local target={}
+ if tonumber(specification) then
+  specification={ size=specification }
+ end
+ target.specification=specification
+ local scaledpoints=specification.size
+ local relativeid=specification.relativeid
+ local properties=tfmdata.properties  or {}
+ local goodies=tfmdata.goodies  or {}
+ local resources=tfmdata.resources   or {}
+ local descriptions=tfmdata.descriptions   or {} 
+ local characters=tfmdata.characters  or {} 
+ local changed=tfmdata.changed  or {} 
+ local shared=tfmdata.shared   or {}
+ local parameters=tfmdata.parameters  or {}
+ local mathparameters=tfmdata.mathparameters or {}
+ local targetcharacters={}
+ local targetdescriptions=derivetable(descriptions)
+ local targetparameters=derivetable(parameters)
+ local targetproperties=derivetable(properties)
+ local targetgoodies=goodies      
+ target.characters=targetcharacters
+ target.descriptions=targetdescriptions
+ target.parameters=targetparameters
+ target.properties=targetproperties
+ target.goodies=targetgoodies
+ target.shared=shared
+ target.resources=resources
+ target.unscaled=tfmdata
+ local mathsize=tonumber(specification.mathsize) or 0
+ local textsize=tonumber(specification.textsize) or scaledpoints
+ local forcedsize=tonumber(parameters.mathsize   ) or 0 
+ local extrafactor=tonumber(specification.factor  ) or 1
+ if (mathsize==2 or forcedsize==2) and parameters.scriptpercentage then
+  scaledpoints=parameters.scriptpercentage*textsize/100
+ elseif (mathsize==3 or forcedsize==3) and parameters.scriptscriptpercentage then
+  scaledpoints=parameters.scriptscriptpercentage*textsize/100
+ elseif forcedsize>1000 then 
+  scaledpoints=forcedsize
+ else
+ end
+ targetparameters.mathsize=mathsize 
+ targetparameters.textsize=textsize 
+ targetparameters.forcedsize=forcedsize  
+ targetparameters.extrafactor=extrafactor
+ local addtounicode=constructors.addtounicode
+ local tounicode=fonts.mappings.tounicode
+ local unknowncode=tounicode(0xFFFD)
+ local defaultwidth=resources.defaultwidth  or 0
+ local defaultheight=resources.defaultheight or 0
+ local defaultdepth=resources.defaultdepth or 0
+ local units=parameters.units or 1000
+ targetproperties.language=properties.language or "dflt" 
+ targetproperties.script=properties.script   or "dflt" 
+ targetproperties.mode=properties.mode  or "base"
+ local askedscaledpoints=scaledpoints
+ local scaledpoints,delta=constructors.calculatescale(tfmdata,scaledpoints,nil,specification)
+ local hdelta=delta
+ local vdelta=delta
+ target.designsize=parameters.designsize 
+ target.units=units
+ target.units_per_em=units
+ local direction=properties.direction or tfmdata.direction or 0 
+ target.direction=direction
+ properties.direction=direction
+ target.size=scaledpoints
+ target.encodingbytes=properties.encodingbytes or 1
+ target.embedding=properties.embedding or "subset"
+ target.tounicode=1
+ target.cidinfo=properties.cidinfo
+ target.format=properties.format
+ target.cache=constructors.cacheintex and "yes" or "renew"
+ local fontname=properties.fontname or tfmdata.fontname
+ local fullname=properties.fullname or tfmdata.fullname
+ local filename=properties.filename or tfmdata.filename
+ local psname=properties.psname   or tfmdata.psname
+ local name=properties.name  or tfmdata.name
+ local psname,psfixed=fixedpsname(psname,fontname or fullname or file.nameonly(filename))
+ target.fontname=fontname
+ target.fullname=fullname
+ target.filename=filename
+ target.psname=psname
+ target.name=name
+ properties.fontname=fontname
+ properties.fullname=fullname
+ properties.filename=filename
+ properties.psname=psname
+ properties.name=name
+ local expansion=parameters.expansion
+ if expansion then
+  target.stretch=expansion.stretch
+  target.shrink=expansion.shrink
+  target.step=expansion.step
+ end
+ local slantfactor=parameters.slantfactor or 0
+ if slantfactor~=0 then
+  target.slant=slantfactor*1000
+ else
+  target.slant=0
+ end
+ local extendfactor=parameters.extendfactor or 0
+ if extendfactor~=0 and extendfactor~=1 then
+  hdelta=hdelta*extendfactor
+  target.extend=extendfactor*1000
+ else
+  target.extend=1000 
+ end
+ local squeezefactor=parameters.squeezefactor or 0
+ if squeezefactor~=0 and squeezefactor~=1 then
+  vdelta=vdelta*squeezefactor
+  target.squeeze=squeezefactor*1000
+ else
+  target.squeeze=1000 
+ end
+ local mode=parameters.mode or 0
+ if mode~=0 then
+  target.mode=mode
+ end
+ local width=parameters.width or 0
+ if width~=0 then
+  target.width=width*delta*1000/655360
+ end
+ targetparameters.factor=delta
+ targetparameters.hfactor=hdelta
+ targetparameters.vfactor=vdelta
+ targetparameters.size=scaledpoints
+ targetparameters.units=units
+ targetparameters.scaledpoints=askedscaledpoints
+ targetparameters.mode=mode
+ targetparameters.width=width
+ local isvirtual=properties.virtualized or tfmdata.type=="virtual"
+ local hasquality=parameters.expansion or parameters.protrusion
+ local hasitalics=properties.hasitalics
+ local autoitalicamount=properties.autoitalicamount
+ local stackmath=not properties.nostackmath
+ local haskerns=properties.haskerns  or properties.mode=="base" 
+ local hasligatures=properties.hasligatures or properties.mode=="base" 
+ local realdimensions=properties.realdimensions
+ local writingmode=properties.writingmode or "horizontal"
+ local identity=properties.identity or "horizontal"
+ local vfonts=target.fonts
+ if vfonts and #vfonts>0 then
+  target.fonts=fastcopy(vfonts) 
+ elseif isvirtual then
+  target.fonts={ { id=0 } } 
+ end
+ if changed and not next(changed) then
+  changed=false
+ end
+ target.type=isvirtual and "virtual" or "real"
+ target.writingmode=writingmode=="vertical" and "vertical" or "horizontal"
+ target.identity=identity=="vertical" and "vertical" or "horizontal"
+ target.postprocessors=tfmdata.postprocessors
+ local targetslant=(parameters.slant   or parameters[1] or 0)*factors.pt 
+ local targetspace=(parameters.space   or parameters[2] or 0)*hdelta
+ local targetspace_stretch=(parameters.space_stretch or parameters[3] or 0)*hdelta
+ local targetspace_shrink=(parameters.space_shrink  or parameters[4] or 0)*hdelta
+ local targetx_height=(parameters.x_height   or parameters[5] or 0)*vdelta
+ local targetquad=(parameters.quad    or parameters[6] or 0)*hdelta
+ local targetextra_space=(parameters.extra_space   or parameters[7] or 0)*hdelta
+ targetparameters.slant=targetslant 
+ targetparameters.space=targetspace
+ targetparameters.space_stretch=targetspace_stretch
+ targetparameters.space_shrink=targetspace_shrink
+ targetparameters.x_height=targetx_height
+ targetparameters.quad=targetquad
+ targetparameters.extra_space=targetextra_space
+ local ascender=parameters.ascender
+ if ascender then
+  targetparameters.ascender=delta*ascender
+ end
+ local descender=parameters.descender
+ if descender then
+  targetparameters.descender=delta*descender
+ end
+ constructors.enhanceparameters(targetparameters)
+ local protrusionfactor=(targetquad~=0 and 1000/targetquad) or 0
+ local scaledwidth=defaultwidth*hdelta
+ local scaledheight=defaultheight*vdelta
+ local scaleddepth=defaultdepth*vdelta
+ local hasmath=(properties.hasmath or next(mathparameters)) and true
+ if hasmath then
+  constructors.assignmathparameters(target,tfmdata) 
+  properties.hasmath=true
+  target.nomath=false
+  target.MathConstants=target.mathparameters
+ else
+  properties.hasmath=false
+  target.nomath=true
+  target.mathparameters=nil 
+ end
+ if hasmath then
+  local mathitalics=properties.mathitalics
+  if mathitalics==false then
+   if trace_defining then
+    report_defining("%s italics %s for font %a, fullname %a, filename %a","math",hasitalics and "ignored" or "disabled",name,fullname,filename)
+   end
+   hasitalics=false
+   autoitalicamount=false
+  end
+ else
+  local textitalics=properties.textitalics
+  if textitalics==false then
+   if trace_defining then
+    report_defining("%s italics %s for font %a, fullname %a, filename %a","text",hasitalics and "ignored" or "disabled",name,fullname,filename)
+   end
+   hasitalics=false
+   autoitalicamount=false
+  end
+ end
+ if trace_defining then
+  report_defining("defining tfm, name %a, fullname %a, filename %a, %spsname %a, hscale %a, vscale %a, math %a, italics %a",
+   name,fullname,filename,psfixed and "(fixed) " or "",psname,hdelta,vdelta,
+   hasmath and "enabled" or "disabled",hasitalics and "enabled" or "disabled")
+ end
+ constructors.beforecopyingcharacters(target,tfmdata)
+ local sharedkerns={}
+ for unicode,character in next,characters do
+  local chr,description,index
+  if changed then
+   local c=changed[unicode]
+   if c and c~=unicode then
+    if c then
+     description=descriptions[c] or descriptions[unicode] or character
+     character=characters[c] or character
+     index=description.index or c
+    else
+     description=descriptions[unicode] or character
+     index=description.index or unicode
+    end
+   else
+    description=descriptions[unicode] or character
+    index=description.index or unicode
+   end
+  else
+   description=descriptions[unicode] or character
+   index=description.index or unicode
+  end
+  local width=description.width
+  local height=description.height
+  local depth=description.depth
+  local isunicode=description.unicode
+  if realdimensions then
+   if not height or height==0 then
+    local bb=description.boundingbox
+    local ht=bb[4]
+    if ht~=0 then
+     height=ht
+    end
+    if not depth or depth==0 then
+     local dp=-bb[2]
+     if dp~=0 then
+      depth=dp
+     end
+    end
+   elseif not depth or depth==0 then
+    local dp=-description.boundingbox[2]
+    if dp~=0 then
+     depth=dp
+    end
+   end
+  end
+  if width  then width=hdelta*width  else width=scaledwidth  end
+  if height then height=vdelta*height else height=scaledheight end
+  if depth and depth~=0 then
+   depth=delta*depth
+   if isunicode then
+    chr={
+     index=index,
+     height=height,
+     depth=depth,
+     width=width,
+     unicode=isunicode,
+    }
+   else
+    chr={
+     index=index,
+     height=height,
+     depth=depth,
+     width=width,
+    }
+   end
+  else
+   if isunicode then
+    chr={
+     index=index,
+     height=height,
+     width=width,
+     unicode=isunicode,
+    }
+   else
+    chr={
+     index=index,
+     height=height,
+     width=width,
+    }
+   end
+  end
+  if addtounicode then
+   chr.tounicode=isunicode and tounicode(isunicode) or unknowncode
+  end
+  if hasquality then
+   local ve=character.expansion_factor
+   if ve then
+    chr.expansion_factor=ve*1000 
+   end
+   local vl=character.left_protruding
+   if vl then
+    chr.left_protruding=protrusionfactor*width*vl
+   end
+   local vr=character.right_protruding
+   if vr then
+    chr.right_protruding=protrusionfactor*width*vr
+   end
+  end
+  if hasmath then
+   local vn=character.next
+   if vn then
+    chr.next=vn
+   else
+    local vv=character.vert_variants
+    if vv then
+     local t={}
+     for i=1,#vv do
+      local vvi=vv[i]
+      local s=vvi["start"]   or 0
+      local e=vvi["end"]  or 0
+      local a=vvi["advance"] or 0
+      t[i]={ 
+       ["start"]=s==0 and 0 or s*vdelta,
+       ["end"]=e==0 and 0 or e*vdelta,
+       ["advance"]=a==0 and 0 or a*vdelta,
+       ["extender"]=vvi["extender"],
+       ["glyph"]=vvi["glyph"],
+      }
+     end
+     chr.vert_variants=t
+    else
+     local hv=character.horiz_variants
+     if hv then
+      local t={}
+      for i=1,#hv do
+       local hvi=hv[i]
+       local s=hvi["start"]   or 0
+       local e=hvi["end"]  or 0
+       local a=hvi["advance"] or 0
+       t[i]={ 
+        ["start"]=s==0 and 0 or s*hdelta,
+        ["end"]=e==0 and 0 or e*hdelta,
+        ["advance"]=a==0 and 0 or a*hdelta,
+        ["extender"]=hvi["extender"],
+        ["glyph"]=hvi["glyph"],
+       }
+      end
+      chr.horiz_variants=t
+     end
+    end
+   end
+   local vi=character.vert_italic
+   if vi and vi~=0 then
+    chr.vert_italic=vi*hdelta
+   end
+   local va=character.accent
+   if va then
+    chr.top_accent=vdelta*va
+   end
+   if stackmath then
+    local mk=character.mathkerns
+    if mk then
+     local tr=mk.topright
+     local tl=mk.topleft
+     local br=mk.bottomright
+     local bl=mk.bottomleft
+     chr.mathkern={ 
+      top_right=tr and mathkerns(tr,vdelta) or nil,
+      top_left=tl and mathkerns(tl,vdelta) or nil,
+      bottom_right=br and mathkerns(br,vdelta) or nil,
+      bottom_left=bl and mathkerns(bl,vdelta) or nil,
+     }
+    end
+   end
+   if hasitalics then
+    local vi=character.italic
+    if vi and vi~=0 then
+     chr.italic=vi*hdelta
+    end
+   end
+  elseif autoitalicamount then 
+   local vi=description.italic
+   if not vi then
+    local bb=description.boundingbox
+    if bb then
+     local vi=bb[3]-description.width+autoitalicamount
+     if vi>0 then 
+      chr.italic=vi*hdelta
+     end
+    else
+    end
+   elseif vi~=0 then
+    chr.italic=vi*hdelta
+   end
+  elseif hasitalics then 
+   local vi=character.italic
+   if vi and vi~=0 then
+    chr.italic=vi*hdelta
+   end
+  end
+  if haskerns then
+   local vk=character.kerns
+   if vk then
+    local s=sharedkerns[vk]
+    if not s then
+     s={}
+     for k,v in next,vk do s[k]=v*hdelta end
+     sharedkerns[vk]=s
+    end
+    chr.kerns=s
+   end
+  end
+  if hasligatures then
+   local vl=character.ligatures
+   if vl then
+    if true then
+     chr.ligatures=vl 
+    else
+     local tt={}
+     for i,l in next,vl do
+      tt[i]=l
+     end
+     chr.ligatures=tt
+    end
+   end
+  end
+  if isvirtual then
+   local vc=character.commands
+   if vc then
+    local ok=false
+    for i=1,#vc do
+     local key=vc[i][1]
+     if key=="right" or key=="down" or key=="rule" then
+      ok=true
+      break
+     end
+    end
+    if ok then
+     local tt={}
+     for i=1,#vc do
+      local ivc=vc[i]
+      local key=ivc[1]
+      if key=="right" then
+       tt[i]={ key,ivc[2]*hdelta }
+      elseif key=="down" then
+       tt[i]={ key,ivc[2]*vdelta }
+      elseif key=="rule" then
+       tt[i]={ key,ivc[2]*vdelta,ivc[3]*hdelta }
+      else 
+       tt[i]=ivc 
+      end
+     end
+     chr.commands=tt
+    else
+     chr.commands=vc
+    end
+   end
+  end
+  targetcharacters[unicode]=chr
+ end
+ properties.setitalics=hasitalics
+ constructors.aftercopyingcharacters(target,tfmdata)
+ constructors.trytosharefont(target,tfmdata)
+ local vfonts=target.fonts
+ if isvirtual or target.type=="virtual" or properties.virtualized then
+  properties.virtualized=true
+  target.type="virtual"
+  if not vfonts or #vfonts==0 then
+   target.fonts={ { id=0 } }
+  end
+ elseif vfonts then
+  properties.virtualized=true
+  target.type="virtual"
+  if #vfonts==0 then
+   target.fonts={ { id=0 } }
+  end
+ end
+ return target
+end
+function constructors.finalize(tfmdata)
+ if tfmdata.properties and tfmdata.properties.finalized then
+  return
+ end
+ if not tfmdata.characters then
+  return nil
+ end
+ if not tfmdata.goodies then
+  tfmdata.goodies={} 
+ end
+ local parameters=tfmdata.parameters
+ if not parameters then
+  return nil
+ end
+ if not parameters.expansion then
+  parameters.expansion={
+   stretch=tfmdata.stretch or 0,
+   shrink=tfmdata.shrink  or 0,
+   step=tfmdata.step or 0,
+  }
+ end
+ if not parameters.size then
+  parameters.size=tfmdata.size
+ end
+ if not parameters.mode then
+  parameters.mode=0
+ end
+ if not parameters.width then
+  parameters.width=0
+ end
+ if not parameters.slantfactor then
+  parameters.slantfactor=(tfmdata.slant or 0)/1000
+ end
+ if not parameters.extendfactor then
+  parameters.extendfactor=(tfmdata.extend or 1000)/1000
+ end
+ if not parameters.squeezefactor then
+  parameters.squeezefactor=(tfmdata.squeeze or 1000)/1000
+ end
+ local designsize=parameters.designsize
+ if designsize then
+  parameters.minsize=tfmdata.minsize or designsize
+  parameters.maxsize=tfmdata.maxsize or designsize
+ else
+  designsize=factors.pt*10
+  parameters.designsize=designsize
+  parameters.minsize=designsize
+  parameters.maxsize=designsize
+ end
+ parameters.minsize=tfmdata.minsize or parameters.designsize
+ parameters.maxsize=tfmdata.maxsize or parameters.designsize
+ if not parameters.units then
+  parameters.units=tfmdata.units or tfmdata.units_per_em or 1000
+ end
+ if not tfmdata.descriptions then
+  local descriptions={} 
+  setmetatableindex(descriptions,function(t,k) local v={} t[k]=v return v end)
+  tfmdata.descriptions=descriptions
+ end
+ local properties=tfmdata.properties
+ if not properties then
+  properties={}
+  tfmdata.properties=properties
+ end
+ if not properties.virtualized then
+  properties.virtualized=tfmdata.type=="virtual"
+ end
+ properties.fontname=properties.fontname or tfmdata.fontname
+ properties.filename=properties.filename or tfmdata.filename
+ properties.fullname=properties.fullname or tfmdata.fullname
+ properties.name=properties.name  or tfmdata.name
+ properties.psname=properties.psname   or tfmdata.psname
+ properties.encodingbytes=tfmdata.encodingbytes or 1
+ properties.embedding=tfmdata.embedding  or "subset"
+ properties.tounicode=tfmdata.tounicode  or 1
+ properties.cidinfo=tfmdata.cidinfo    or nil
+ properties.format=tfmdata.format  or "type1"
+ properties.direction=tfmdata.direction  or 0
+ properties.writingmode=tfmdata.writingmode   or "horizontal"
+ properties.identity=tfmdata.identity   or "horizontal"
+ properties.usedbitmap=tfmdata.usedbitmap
+ if not tfmdata.resources then
+  tfmdata.resources={}
+ end
+ if not tfmdata.shared then
+  tfmdata.shared={}
+ end
+ if not properties.hasmath then
+  properties.hasmath=not tfmdata.nomath
+ end
+ tfmdata.MathConstants=nil
+ tfmdata.postprocessors=nil
+ tfmdata.fontname=nil
+ tfmdata.filename=nil
+ tfmdata.fullname=nil
+ tfmdata.name=nil 
+ tfmdata.psname=nil
+ tfmdata.encodingbytes=nil
+ tfmdata.embedding=nil
+ tfmdata.tounicode=nil
+ tfmdata.cidinfo=nil
+ tfmdata.format=nil
+ tfmdata.direction=nil
+ tfmdata.type=nil
+ tfmdata.nomath=nil
+ tfmdata.designsize=nil
+ tfmdata.size=nil
+ tfmdata.stretch=nil
+ tfmdata.shrink=nil
+ tfmdata.step=nil
+ tfmdata.slant=nil
+ tfmdata.extend=nil
+ tfmdata.squeeze=nil
+ tfmdata.mode=nil
+ tfmdata.width=nil
+ tfmdata.units=nil
+ tfmdata.units_per_em=nil
+ tfmdata.cache=nil
+ properties.finalized=true
+ return tfmdata
+end
+local hashmethods={}
+constructors.hashmethods=hashmethods
+function constructors.hashfeatures(specification) 
+ local features=specification.features
+ if features then
+  local t,n={},0
+  for category,list in sortedhash(features) do
+   if next(list) then
+    local hasher=hashmethods[category]
+    if hasher then
+     local hash=hasher(list)
+     if hash then
+      n=n+1
+      t[n]=category..":"..hash
+     end
+    end
+   end
+  end
+  if n>0 then
+   return concat(t," & ")
+  end
+ end
+ return "unknown"
+end
+hashmethods.normal=function(list)
+ local s={}
+ local n=0
+ for k,v in next,list do
+  if not k then
+  elseif k=="number" or k=="features" then
+  else
+   n=n+1
+   if type(v)=="table" then
+    local t={}
+    local m=0
+    for k,v in next,v do
+     m=m+1
+     t[m]=k..'='..tostring(v)
+    end
+    s[n]=k..'={'..concat(t,",").."}"
+   else
+    s[n]=k..'='..tostring(v)
+   end
+  end
+ end
+ if n>0 then
+  sort(s)
+  return concat(s,"+")
+ end
+end
+function constructors.hashinstance(specification,force)
+ local hash=specification.hash
+ local size=specification.size
+ local fallbacks=specification.fallbacks
+ if force or not hash then
+  hash=constructors.hashfeatures(specification)
+  specification.hash=hash
+ end
+ if size<1000 and designsizes[hash] then
+  size=round(constructors.scaled(size,designsizes[hash]))
+ else
+  size=round(size)
+ end
+ specification.size=size
+ if fallbacks then
+  return hash..' @ '..size..' @ '..fallbacks
+ else
+  return hash..' @ '..size
+ end
+end
+function constructors.setname(tfmdata,specification) 
+ if constructors.namemode=="specification" then
+  local specname=specification.specification
+  if specname then
+   tfmdata.properties.name=specname
+   if trace_defining then
+    report_otf("overloaded fontname %a",specname)
+   end
+  end
+ end
+end
+function constructors.checkedfilename(data)
+ local foundfilename=data.foundfilename
+ if not foundfilename then
+  local askedfilename=data.filename or ""
+  if askedfilename~="" then
+   askedfilename=resolvers.resolve(askedfilename) 
+   foundfilename=resolvers.findbinfile(askedfilename,"") or ""
+   if foundfilename=="" then
+    report_defining("source file %a is not found",askedfilename)
+    foundfilename=resolvers.findbinfile(file.basename(askedfilename),"") or ""
+    if foundfilename~="" then
+     report_defining("using source file %a due to cache mismatch",foundfilename)
+    end
+   end
+  end
+  data.foundfilename=foundfilename
+ end
+ return foundfilename
+end
+local formats=allocate()
+fonts.formats=formats
+setmetatableindex(formats,function(t,k)
+ local l=lower(k)
+ if rawget(t,k) then
+  t[k]=l
+  return l
+ end
+ return rawget(t,file.suffix(l))
+end)
+do
+ local function setindeed(mode,source,target,group,name,position)
+  local action=source[mode]
+  if not action then
+   return
+  end
+  local t=target[mode]
+  if not t then
+   report_defining("fatal error in setting feature %a, group %a, mode %a",name,group,mode)
+   os.exit()
+  elseif position then
+   insert(t,position,{ name=name,action=action })
+  else
+   for i=1,#t do
+    local ti=t[i]
+    if ti.name==name then
+     ti.action=action
+     return
+    end
+   end
+   insert(t,{ name=name,action=action })
+  end
+ end
+ local function set(group,name,target,source)
+  target=target[group]
+  if not target then
+   report_defining("fatal target error in setting feature %a, group %a",name,group)
+   os.exit()
+  end
+  local source=source[group]
+  if not source then
+   report_defining("fatal source error in setting feature %a, group %a",name,group)
+   os.exit()
+  end
+  local position=source.position
+  setindeed("node",source,target,group,name,position)
+  setindeed("base",source,target,group,name,position)
+  setindeed("plug",source,target,group,name,position)
+ end
+ local function register(where,specification)
+  local name=specification.name
+  if name and name~="" then
+   local default=specification.default
+   local description=specification.description
+   local initializers=specification.initializers
+   local processors=specification.processors
+   local manipulators=specification.manipulators
+   local modechecker=specification.modechecker
+   if default then
+    where.defaults[name]=default
+   end
+   if description and description~="" then
+    where.descriptions[name]=description
+   end
+   if initializers then
+    set('initializers',name,where,specification)
+   end
+   if processors then
+    set('processors',name,where,specification)
+   end
+   if manipulators then
+    set('manipulators',name,where,specification)
+   end
+   if modechecker then
+      where.modechecker=modechecker
+   end
+  end
+ end
+ constructors.registerfeature=register
+ function constructors.getfeatureaction(what,where,mode,name)
+  what=handlers[what].features
+  if what then
+   where=what[where]
+   if where then
+    mode=where[mode]
+    if mode then
+     for i=1,#mode do
+      local m=mode[i]
+      if m.name==name then
+       return m.action
+      end
+     end
+    end
+   end
+  end
+ end
+ local newfeatures={}
+ constructors.newfeatures=newfeatures 
+ constructors.features=newfeatures
+ local function setnewfeatures(what)
+  local handler=handlers[what]
+  local features=handler.features
+  if not features then
+   local tables=handler.tables  
+   local statistics=handler.statistics 
+   features=allocate {
+    defaults={},
+    descriptions=tables and tables.features or {},
+    used=statistics and statistics.usedfeatures or {},
+    initializers={ base={},node={},plug={} },
+    processors={ base={},node={},plug={} },
+    manipulators={ base={},node={},plug={} },
+   }
+   features.register=function(specification) return register(features,specification) end
+   handler.features=features 
+  end
+  return features
+ end
+ setmetatable(newfeatures,{
+  __call=function(t,k) local v=t[k] return v end,
+  __index=function(t,k) local v=setnewfeatures(k) t[k]=v return v end,
+ })
+end
+do
+ local newhandler={}
+ constructors.handlers=newhandler 
+ constructors.newhandler=newhandler
+ local function setnewhandler(what) 
+  local handler=handlers[what]
+  if not handler then
+   handler={}
+   handlers[what]=handler
+  end
+  return handler
+ end
+ setmetatable(newhandler,{
+  __call=function(t,k) local v=t[k] return v end,
+  __index=function(t,k) local v=setnewhandler(k) t[k]=v return v end,
+ })
+end
+do
+ local newenhancer={}
+ constructors.enhancers=newenhancer
+ constructors.newenhancer=newenhancer
+ local function setnewenhancer(format)
+  local handler=handlers[format]
+  local enhancers=handler.enhancers
+  if not enhancers then
+   local actions=allocate() 
+   local before=allocate()
+   local after=allocate()
+   local order=allocate()
+   local known={}
+   local nofsteps=0
+   local patches={ before=before,after=after }
+   local trace=false
+   local report=logs.reporter("fonts",format.." enhancing")
+   trackers.register(format..".loading",function(v) trace=v end)
+   local function enhance(name,data,filename,raw)
+    local enhancer=actions[name]
+    if enhancer then
+     if trace then
+      report("apply enhancement %a to file %a",name,filename)
+      ioflush()
+     end
+     enhancer(data,filename,raw)
+    else
+    end
+   end
+   local function apply(data,filename,raw)
+    local basename=file.basename(lower(filename))
+    if trace then
+     report("%s enhancing file %a","start",filename)
+    end
+    ioflush() 
+    for e=1,nofsteps do
+     local enhancer=order[e]
+     local b=before[enhancer]
+     if b then
+      for pattern,action in next,b do
+       if find(basename,pattern) then
+        action(data,filename,raw)
+       end
+      end
+     end
+     enhance(enhancer,data,filename,raw) 
+     local a=after[enhancer]
+     if a then
+      for pattern,action in next,a do
+       if find(basename,pattern) then
+        action(data,filename,raw)
+       end
+      end
+     end
+     ioflush() 
+    end
+    if trace then
+     report("%s enhancing file %a","stop",filename)
+    end
+    ioflush() 
+   end
+   local function register(what,action)
+    if action then
+     if actions[what] then
+     else
+      nofsteps=nofsteps+1
+      order[nofsteps]=what
+      known[what]=nofsteps
+     end
+     actions[what]=action
+    else
+     report("bad enhancer %a",what)
+    end
+   end
+   local function patch(what,where,pattern,action)
+    local pw=patches[what]
+    if pw then
+     local ww=pw[where]
+     if ww then
+      ww[pattern]=action
+     else
+      pw[where]={ [pattern]=action }
+      if not known[where] then
+       nofsteps=nofsteps+1
+       order[nofsteps]=where
+       known[where]=nofsteps
+      end
+     end
+    end
+   end
+   enhancers={
+    register=register,
+    apply=apply,
+    patch=patch,
+    report=report,
+    patches={
+     register=patch,
+     report=report,
+    },
+   }
+   handler.enhancers=enhancers
+  end
+  return enhancers
+ end
+ setmetatable(newenhancer,{
+  __call=function(t,k) local v=t[k] return v end,
+  __index=function(t,k) local v=setnewenhancer(k) t[k]=v return v end,
+ })
+end
+function constructors.checkedfeatures(what,features)
+ local defaults=handlers[what].features.defaults
+ if features and next(features) then
+  features=fastcopy(features) 
+  for key,value in next,defaults do
+   if features[key]==nil then
+    features[key]=value
+   end
+  end
+  return features
+ else
+  return fastcopy(defaults) 
+ end
+end
+function constructors.initializefeatures(what,tfmdata,features,trace,report)
+ if features and next(features) then
+  local properties=tfmdata.properties or {} 
+  local whathandler=handlers[what]
+  local whatfeatures=whathandler.features
+  local whatmodechecker=whatfeatures.modechecker
+  local mode=properties.mode or (whatmodechecker and whatmodechecker(tfmdata,features,features.mode)) or features.mode or "base"
+  properties.mode=mode 
+  features.mode=mode
+  local done={}
+  while true do
+   local redo=false
+   local initializers=whatfeatures.initializers[mode]
+   if initializers then
+    for i=1,#initializers do
+     local step=initializers[i]
+     local feature=step.name
+     local value=features[feature]
+     if not value then
+     elseif done[feature] then
+     else
+      local action=step.action
+      if trace then
+       report("initializing feature %a to %a for mode %a for font %a",feature,
+        value,mode,tfmdata.properties.fullname)
+      end
+      action(tfmdata,value,features) 
+      if mode~=properties.mode or mode~=features.mode then
+       if whatmodechecker then
+        properties.mode=whatmodechecker(tfmdata,features,properties.mode) 
+        features.mode=properties.mode
+       end
+       if mode~=properties.mode then
+        mode=properties.mode
+        redo=true
+       end
+      end
+      done[feature]=true
+     end
+     if redo then
+      break
+     end
+    end
+    if not redo then
+     break
+    end
+   else
+    break
+   end
+  end
+  properties.mode=mode 
+  return true
+ else
+  return false
+ end
+end
+function constructors.collectprocessors(what,tfmdata,features,trace,report)
+ local processes={}
+ local nofprocesses=0
+ if features and next(features) then
+  local properties=tfmdata.properties
+  local whathandler=handlers[what]
+  local whatfeatures=whathandler.features
+  local whatprocessors=whatfeatures.processors
+  local mode=properties.mode
+  local processors=whatprocessors[mode]
+  if processors then
+   for i=1,#processors do
+    local step=processors[i]
+    local feature=step.name
+    if features[feature] then
+     local action=step.action
+     if trace then
+      report("installing feature processor %a for mode %a for font %a",feature,mode,tfmdata.properties.fullname)
+     end
+     if action then
+      nofprocesses=nofprocesses+1
+      processes[nofprocesses]=action
+     end
+    end
+   end
+  elseif trace then
+   report("no feature processors for mode %a for font %a",mode,properties.fullname)
+  end
+ end
+ return processes
+end
+function constructors.applymanipulators(what,tfmdata,features,trace,report)
+ if features and next(features) then
+  local properties=tfmdata.properties
+  local whathandler=handlers[what]
+  local whatfeatures=whathandler.features
+  local whatmanipulators=whatfeatures.manipulators
+  local mode=properties.mode
+  local manipulators=whatmanipulators[mode]
+  if manipulators then
+   for i=1,#manipulators do
+    local step=manipulators[i]
+    local feature=step.name
+    local value=features[feature]
+    if value then
+     local action=step.action
+     if trace then
+      report("applying feature manipulator %a for mode %a for font %a",feature,mode,properties.fullname)
+     end
+     if action then
+      action(tfmdata,feature,value)
+     end
+    end
+   end
+  end
+ end
+end
+function constructors.addcoreunicodes(unicodes) 
+ if not unicodes then
+  unicodes={}
+ end
+ unicodes.space=0x0020
+ unicodes.hyphen=0x002D
+ unicodes.zwj=0x200D
+ unicodes.zwnj=0x200C
+ return unicodes
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-font-enc']={
+ version=1.001,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+--removed
+
+end
+local fonts=fonts
+local encodings={}
+fonts.encodings=encodings
+encodings.agl={}
+encodings.known={}
+setmetatable(encodings.agl,{ __index=function(t,k)
+ if k=="unicodes" then
+  logs.report("fonts","loading (extended) adobe glyph list")
+  local unicodes=dofile(resolvers.findfile("font-age.lua"))
+  encodings.agl={ unicodes=unicodes }
+  return unicodes
+ else
+  return nil
+ end
+end })
+encodings.cache=containers.define("fonts","enc",encodings.version,true)
+function encodings.load(filename)
+ local name=file.removesuffix(filename)
+ local data=containers.read(encodings.cache,name)
+ if data then
+  return data
+ end
+ local vector,tag,hash,unicodes={},"",{},{}
+ local foundname=resolvers.findfile(filename,'enc')
+ if foundname and foundname~="" then
+  local ok,encoding,size=resolvers.loadbinfile(foundname)
+  if ok and encoding then
+   encoding=string.gsub(encoding,"%%(.-)\n","")
+   local unicoding=encodings.agl.unicodes
+   local tag,vec=string.match(encoding,"/(%w+)%s*%[(.*)%]%s*def")
+   local i=0
+   for ch in string.gmatch(vec,"/([%a%d%.]+)") do
+    if ch~=".notdef" then
+     vector[i]=ch
+     if not hash[ch] then
+      hash[ch]=i
+     else
+     end
+     local u=unicoding[ch]
+     if u then
+      unicodes[u]=i
+     end
+    end
+    i=i+1
+   end
+  end
+ end
+ local data={
+  name=name,
+  tag=tag,
+  vector=vector,
+  hash=hash,
+  unicodes=unicodes
+ }
+ return containers.write(encodings.cache,name,data)
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-cid']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local format,match,lower=string.format,string.match,string.lower
+local tonumber=tonumber
+local P,S,R,C,V,lpegmatch=lpeg.P,lpeg.S,lpeg.R,lpeg.C,lpeg.V,lpeg.match
+local fonts,logs,trackers=fonts,logs,trackers
+local trace_loading=false  trackers.register("otf.loading",function(v) trace_loading=v end)
+local report_otf=logs.reporter("fonts","otf loading")
+local cid={}
+fonts.cid=cid
+local cidmap={}
+local cidmax=10
+local number=C(R("09","af","AF")^1)
+local space=S(" \n\r\t")
+local spaces=space^0
+local period=P(".")
+local periods=period*period
+local name=P("/")*C((1-space)^1)
+local unicodes,names={},{} 
+local function do_one(a,b)
+ unicodes[tonumber(a)]=tonumber(b,16)
+end
+local function do_range(a,b,c)
+ c=tonumber(c,16)
+ for i=tonumber(a),tonumber(b) do
+  unicodes[i]=c
+  c=c+1
+ end
+end
+local function do_name(a,b)
+ names[tonumber(a)]=b
+end
+local grammar=P { "start",
+ start=number*spaces*number*V("series"),
+ series=(spaces*(V("one")+V("range")+V("named")))^1,
+ one=(number*spaces*number)/do_one,
+ range=(number*periods*number*spaces*number)/do_range,
+ named=(number*spaces*name)/do_name
+}
+local function loadcidfile(filename)
+ local data=io.loaddata(filename)
+ if data then
+  unicodes,names={},{}
+  lpegmatch(grammar,data)
+  local supplement,registry,ordering=match(filename,"^(.-)%-(.-)%-()%.(.-)$")
+  return {
+   supplement=supplement,
+   registry=registry,
+   ordering=ordering,
+   filename=filename,
+   unicodes=unicodes,
+   names=names,
+  }
+ end
+end
+cid.loadfile=loadcidfile 
+local template="%s-%s-%s.cidmap"
+local function locate(registry,ordering,supplement)
+ local filename=format(template,registry,ordering,supplement)
+ local hashname=lower(filename)
+ local found=cidmap[hashname]
+ if not found then
+  if trace_loading then
+   report_otf("checking cidmap, registry %a, ordering %a, supplement %a, filename %a",registry,ordering,supplement,filename)
+  end
+  local fullname=resolvers.findfile(filename,'cid') or ""
+  if fullname~="" then
+   found=loadcidfile(fullname)
+   if found then
+    if trace_loading then
+     report_otf("using cidmap file %a",filename)
+    end
+    cidmap[hashname]=found
+    found.usedname=file.basename(filename)
+   end
+  end
+ end
+ return found
+end
+function cid.getmap(specification)
+ if not specification then
+  report_otf("invalid cidinfo specification, table expected")
+  return
+ end
+ local registry=specification.registry
+ local ordering=specification.ordering
+ local supplement=specification.supplement
+ local filename=format(registry,ordering,supplement)
+ local lowername=lower(filename)
+ local found=cidmap[lowername]
+ if found then
+  return found
+ end
+ if ordering=="Identity" then
+  local found={
+   supplement=supplement,
+   registry=registry,
+   ordering=ordering,
+   filename=filename,
+   unicodes={},
+   names={},
+  }
+  cidmap[lowername]=found
+  return found
+ end
+ if trace_loading then
+  report_otf("cidmap needed, registry %a, ordering %a, supplement %a",registry,ordering,supplement)
+ end
+ found=locate(registry,ordering,supplement)
+ if not found then
+  local supnum=tonumber(supplement)
+  local cidnum=nil
+  if supnum<cidmax then
+   for s=supnum+1,cidmax do
+    local c=locate(registry,ordering,s)
+    if c then
+     found,cidnum=c,s
+     break
+    end
+   end
+  end
+  if not found and supnum>0 then
+   for s=supnum-1,0,-1 do
+    local c=locate(registry,ordering,s)
+    if c then
+     found,cidnum=c,s
+     break
+    end
+   end
+  end
+  registry=lower(registry)
+  ordering=lower(ordering)
+  if found and cidnum>0 then
+   for s=0,cidnum-1 do
+    local filename=format(template,registry,ordering,s)
+    if not cidmap[filename] then
+     cidmap[filename]=found
+    end
+   end
+  end
+ end
+ return found
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-map']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local tonumber,next,type=tonumber,next,type
+local match,format,find,concat,gsub,lower=string.match,string.format,string.find,table.concat,string.gsub,string.lower
+local P,R,S,C,Ct,Cc,lpegmatch=lpeg.P,lpeg.R,lpeg.S,lpeg.C,lpeg.Ct,lpeg.Cc,lpeg.match
+local formatters=string.formatters
+local sortedhash,sortedkeys=table.sortedhash,table.sortedkeys
+local rshift=bit32.rshift
+local trace_loading=false  trackers.register("fonts.loading",function(v) trace_loading=v end)
+local trace_mapping=false  trackers.register("fonts.mapping",function(v) trace_mapping=v end)
+local report_fonts=logs.reporter("fonts","loading")
+local force_ligatures=false  directives.register("fonts.mapping.forceligatures",function(v) force_ligatures=v end)
+local fonts=fonts or {}
+local mappings=fonts.mappings or {}
+fonts.mappings=mappings
+local allocate=utilities.storage.allocate
+local hex=R("AF","af","09")
+local hexfour=(hex*hex*hex^-2)/function(s) return tonumber(s,16) end
+local hexsix=(hex*hex*hex^-4)/function(s) return tonumber(s,16) end
+local dec=(R("09")^1)/tonumber
+local period=P(".")
+local unicode=(P("uni")+P("UNI"))*(hexfour*(period+P(-1))*Cc(false)+Ct(hexfour^1)*Cc(true)) 
+local ucode=(P("u")+P("U")  )*(hexsix*(period+P(-1))*Cc(false)+Ct(hexsix^1)*Cc(true)) 
+local index=P("index")*dec*Cc(false)
+local parser=unicode+ucode+index
+local parsers={}
+local function makenameparser(str)
+ if not str or str=="" then
+  return parser
+ else
+  local p=parsers[str]
+  if not p then
+   p=P(str)*period*dec*Cc(false)
+   parsers[str]=p
+  end
+  return p
+ end
+end
+local f_single=formatters["%04X"]
+local f_double=formatters["%04X%04X"]
+local function tounicode16(unicode)
+ if unicode<0xD7FF or (unicode>0xDFFF and unicode<=0xFFFF) then
+  return f_single(unicode)
+ else
+  unicode=unicode-0x10000
+  return f_double(rshift(unicode,10)+0xD800,unicode%1024+0xDC00)
+ end
+end
+local function tounicode16sequence(unicodes)
+ local t={}
+ for l=1,#unicodes do
+  local u=unicodes[l]
+  if u<0xD7FF or (u>0xDFFF and u<=0xFFFF) then
+   t[l]=f_single(u)
+  else
+   u=u-0x10000
+   t[l]=f_double(rshift(u,10)+0xD800,u%1024+0xDC00)
+  end
+ end
+ return concat(t)
+end
+local unknown=f_single(0xFFFD)
+local hash={}
+local conc={}
+table.setmetatableindex(hash,function(t,k)
+ if k<0xD7FF or (k>0xDFFF and k<=0xFFFF) then
+  v=f_single(k)
+ else
+  local k=k-0x10000
+  v=f_double(rshift(k,10)+0xD800,k%1024+0xDC00)
+ end
+ t[k]=v
+ return v
+end)
+local function tounicode(k)
+ if type(k)=="table" then
+  local n=#k
+  for l=1,n do
+   conc[l]=hash[k[l]]
+  end
+  return concat(conc,"",1,n)
+ elseif k>=0x00E000 and k<=0x00F8FF then
+  return unknown
+ elseif k>=0x0F0000 and k<=0x0FFFFF then
+  return unknown
+ elseif k>=0x100000 and k<=0x10FFFF then
+  return unknown
+ else
+  return hash[k]
+ end
+end
+local function fromunicode16(str)
+ if #str==4 then
+  return tonumber(str,16)
+ else
+  local l,r=match(str,"(....)(....)")
+  return 0x10000+(tonumber(l,16)-0xD800)*0x400+tonumber(r,16)-0xDC00
+ end
+end
+mappings.makenameparser=makenameparser
+mappings.tounicode=tounicode
+mappings.tounicode16=tounicode16
+mappings.tounicode16sequence=tounicode16sequence
+mappings.fromunicode16=fromunicode16
+local ligseparator=P("_")
+local varseparator=P(".")
+local namesplitter=Ct(C((1-ligseparator-varseparator)^1)*(ligseparator*C((1-ligseparator-varseparator)^1))^0)
+do
+ local overloads={
+  IJ={ name="I_J",unicode={ 0x49,0x4A },mess=0x0132 },
+  ij={ name="i_j",unicode={ 0x69,0x6A },mess=0x0133 },
+  ff={ name="f_f",unicode={ 0x66,0x66 },mess=0xFB00 },
+  fi={ name="f_i",unicode={ 0x66,0x69 },mess=0xFB01 },
+  fl={ name="f_l",unicode={ 0x66,0x6C },mess=0xFB02 },
+  ffi={ name="f_f_i",unicode={ 0x66,0x66,0x69 },mess=0xFB03 },
+  ffl={ name="f_f_l",unicode={ 0x66,0x66,0x6C },mess=0xFB04 },
+  fj={ name="f_j",unicode={ 0x66,0x6A } },
+  fk={ name="f_k",unicode={ 0x66,0x6B } },
+ }
+ local o=allocate {}
+ for k,v in next,overloads do
+  local name=v.name
+  local mess=v.mess
+  if name then
+   o[name]=v
+  end
+  if mess then
+   o[mess]=v
+  end
+  o[k]=v
+ end
+ mappings.overloads=o
+end
+function mappings.addtounicode(data,filename,checklookups,forceligatures)
+ local resources=data.resources
+ local unicodes=resources.unicodes
+ if not unicodes then
+  if trace_mapping then
+   report_fonts("no unicode list, quitting tounicode for %a",filename)
+  end
+  return
+ end
+ local properties=data.properties
+ local descriptions=data.descriptions
+ local overloads=mappings.overloads
+ unicodes['space']=unicodes['space']  or 32
+ unicodes['hyphen']=unicodes['hyphen'] or 45
+ unicodes['zwj']=unicodes['zwj'] or 0x200D
+ unicodes['zwnj']=unicodes['zwnj']   or 0x200C
+ local private=fonts.constructors and fonts.constructors.privateoffset or 0xF0000 
+ local unicodevector=fonts.encodings.agl.unicodes or {} 
+ local contextvector=fonts.encodings.agl.ctxcodes or {} 
+ local missing={}
+ local nofmissing=0
+ local oparser=nil
+ local cidnames=nil
+ local cidcodes=nil
+ local cidinfo=properties.cidinfo
+ local usedmap=cidinfo and fonts.cid.getmap(cidinfo)
+ local uparser=makenameparser() 
+ if usedmap then
+    oparser=usedmap and makenameparser(cidinfo.ordering)
+    cidnames=usedmap.names
+    cidcodes=usedmap.unicodes
+ end
+ local ns=0
+ local nl=0
+ local dlist=sortedkeys(descriptions)
+ for i=1,#dlist do
+  local du=dlist[i]
+  local glyph=descriptions[du]
+  local name=glyph.name
+  if name then
+   local overload=overloads[name] or overloads[du]
+   if overload then
+    glyph.unicode=overload.unicode
+   else
+    local gu=glyph.unicode 
+    if not gu or gu==-1 or du>=private or (du>=0xE000 and du<=0xF8FF) or du==0xFFFE or du==0xFFFF then
+     local unicode=unicodevector[name] or contextvector[name]
+     if unicode then
+      glyph.unicode=unicode
+      ns=ns+1
+     end
+     if (not unicode) and usedmap then
+      local foundindex=lpegmatch(oparser,name)
+      if foundindex then
+       unicode=cidcodes[foundindex] 
+       if unicode then
+        glyph.unicode=unicode
+        ns=ns+1
+       else
+        local reference=cidnames[foundindex] 
+        if reference then
+         local foundindex=lpegmatch(oparser,reference)
+         if foundindex then
+          unicode=cidcodes[foundindex]
+          if unicode then
+           glyph.unicode=unicode
+           ns=ns+1
+          end
+         end
+         if not unicode or unicode=="" then
+          local foundcodes,multiple=lpegmatch(uparser,reference)
+          if foundcodes then
+           glyph.unicode=foundcodes
+           if multiple then
+            nl=nl+1
+            unicode=true
+           else
+            ns=ns+1
+            unicode=foundcodes
+           end
+          end
+         end
+        end
+       end
+      end
+     end
+     if not unicode or unicode=="" then
+      local split=lpegmatch(namesplitter,name)
+      local nsplit=split and #split or 0 
+      if nsplit==0 then
+      elseif nsplit==1 then
+       local base=split[1]
+       local u=unicodes[base] or unicodevector[base] or contextvector[name]
+       if not u then
+       elseif type(u)=="table" then
+        if u[1]<private then
+         unicode=u
+         glyph.unicode=unicode
+        end
+       elseif u<private then
+        unicode=u
+        glyph.unicode=unicode
+       end
+      else
+       local t={}
+       local n=0
+       for l=1,nsplit do
+        local base=split[l]
+        local u=unicodes[base] or unicodevector[base] or contextvector[name]
+        if not u then
+         break
+        elseif type(u)=="table" then
+         if u[1]>=private then
+          break
+         end
+         n=n+1
+         t[n]=u[1]
+        else
+         if u>=private then
+          break
+         end
+         n=n+1
+         t[n]=u
+        end
+       end
+       if n>0 then
+        if n==1 then
+         unicode=t[1]
+        else
+         unicode=t
+        end
+        glyph.unicode=unicode
+       end
+      end
+      nl=nl+1
+     end
+     if not unicode or unicode=="" then
+      local foundcodes,multiple=lpegmatch(uparser,name)
+      if foundcodes then
+       glyph.unicode=foundcodes
+       if multiple then
+        nl=nl+1
+        unicode=true
+       else
+        ns=ns+1
+        unicode=foundcodes
+       end
+      end
+     end
+     local r=overloads[unicode]
+     if r then
+      unicode=r.unicode
+      glyph.unicode=unicode
+     end
+     if not unicode then
+      missing[du]=true
+      nofmissing=nofmissing+1
+     end
+    else
+    end
+   end
+  else
+   local overload=overloads[du]
+   if overload then
+    glyph.unicode=overload.unicode
+   elseif not glyph.unicode then
+    missing[du]=true
+    nofmissing=nofmissing+1
+   end
+  end
+ end
+ if type(checklookups)=="function" then
+  checklookups(data,missing,nofmissing)
+ end
+ local unicoded=0
+ local collected=fonts.handlers.otf.readers.getcomponents(data) 
+ local function resolve(glyph,u)
+  local n=#u
+  for i=1,n do
+   if u[i]>private then
+    n=0
+    break
+   end
+  end
+  if n>0 then
+   if n>1 then
+    glyph.unicode=u
+   else
+    glyph.unicode=u[1]
+   end
+   unicoded=unicoded+1
+  end
+ end
+ if not collected then
+ elseif forceligatures or force_ligatures then
+  for i=1,#dlist do
+   local du=dlist[i]
+   if du>=private or (du>=0xE000 and du<=0xF8FF) then
+    local u=collected[du] 
+    if u then
+     resolve(descriptions[du],u)
+    end
+   end
+  end
+ else
+  for i=1,#dlist do
+   local du=dlist[i]
+   if du>=private or (du>=0xE000 and du<=0xF8FF) then
+    local glyph=descriptions[du]
+    if glyph.class=="ligature" and not glyph.unicode then
+     local u=collected[du] 
+     if u then
+       resolve(glyph,u)
+     end
+    end
+   end
+  end
+ end
+ if trace_mapping and unicoded>0 then
+  report_fonts("%n ligature tounicode mappings deduced from gsub ligature features",unicoded)
+ end
+ if trace_mapping then
+  for i=1,#dlist do
+   local du=dlist[i]
+   local glyph=descriptions[du]
+   local name=glyph.name or "-"
+   local index=glyph.index or 0
+   local unicode=glyph.unicode
+   if unicode then
+    if type(unicode)=="table" then
+     local unicodes={}
+     for i=1,#unicode do
+      unicodes[i]=formatters("%U",unicode[i])
+     end
+     report_fonts("internal slot %U, name %a, unicode %U, tounicode % t",index,name,du,unicodes)
+    else
+     report_fonts("internal slot %U, name %a, unicode %U, tounicode %U",index,name,du,unicode)
+    end
+   else
+    report_fonts("internal slot %U, name %a, unicode %U",index,name,du)
+   end
+  end
+ end
+ if trace_loading and (ns>0 or nl>0) then
+  report_fonts("%s tounicode entries added, ligatures %s",nl+ns,ns)
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-fonts-syn']={
+ version=1.001,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+--removed
+
+end
+local fonts=fonts
+fonts.names=fonts.names or {}
+fonts.names.version=1.001 
+fonts.names.basename="luatex-fonts-names"
+fonts.names.cache=containers.define("fonts","data",fonts.names.version,true)
+local data=nil
+local loaded=false
+local fileformats={ "lua","tex","other text files" }
+function fonts.names.reportmissingbase()
+ logs.report("fonts","missing font database, run: mtxrun --script fonts --reload --simple")
+ fonts.names.reportmissingbase=nil
+end
+function fonts.names.reportmissingname()
+ logs.report("fonts","unknown font in font database, run: mtxrun --script fonts --reload --simple")
+ fonts.names.reportmissingname=nil
+end
+function fonts.names.resolve(name,sub)
+ if not loaded then
+  local basename=fonts.names.basename
+  if basename and basename~="" then
+   data=containers.read(fonts.names.cache,basename)
+   if not data then
+    basename=file.addsuffix(basename,"lua")
+    for i=1,#fileformats do
+     local format=fileformats[i]
+     local foundname=resolvers.findfile(basename,format) or ""
+     if foundname~="" then
+      data=dofile(foundname)
+      logs.report("fonts","font database '%s' loaded",foundname)
+      break
+     end
+    end
+   end
+  end
+  loaded=true
+ end
+ if type(data)=="table" and data.version==fonts.names.version then
+  local condensed=string.gsub(string.lower(name),"[^%a%d]","")
+  local found=data.mappings and data.mappings[condensed]
+  if found then
+   local fontname,filename,subfont=found[1],found[2],found[3]
+   if subfont then
+    return filename,fontname
+   else
+    return filename,false
+   end
+  elseif fonts.names.reportmissingname then
+   fonts.names.reportmissingname()
+   return name,false 
+  end
+ elseif fonts.names.reportmissingbase then
+  fonts.names.reportmissingbase()
+ end
+end
+fonts.names.resolvespec=fonts.names.resolve 
+function fonts.names.getfilename(askedname,suffix)  
+ return ""
+end
+function fonts.names.ignoredfile(filename) 
+ return false 
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-vfc']={
+ version=1.001,
+ comment="companion to font-ini.mkiv and hand-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local select,type=select,type
+local insert=table.insert
+local fonts=fonts
+local helpers=fonts.helpers
+local setmetatableindex=table.setmetatableindex
+local makeweak=table.makeweak
+local push={ "push" }
+local pop={ "pop" }
+local dummy={ "comment" }
+function helpers.prependcommands(commands,...)
+ insert(commands,1,push)
+ for i=select("#",...),1,-1 do
+  local s=(select(i,...))
+  if s then
+   insert(commands,1,s)
+  end
+ end
+ insert(commands,pop)
+ return commands
+end
+function helpers.appendcommands(commands,...)
+ insert(commands,1,push)
+ insert(commands,pop)
+ for i=1,select("#",...) do
+  local s=(select(i,...))
+  if s then
+   insert(commands,s)
+  end
+ end
+ return commands
+end
+function helpers.prependcommandtable(commands,t)
+ insert(commands,1,push)
+ for i=#t,1,-1 do
+  local s=t[i]
+  if s then
+   insert(commands,1,s)
+  end
+ end
+ insert(commands,pop)
+ return commands
+end
+function helpers.appendcommandtable(commands,t)
+ insert(commands,1,push)
+ insert(commands,pop)
+ for i=1,#t do
+  local s=t[i]
+  if s then
+   insert(commands,s)
+  end
+ end
+ return commands
+end
+local char=setmetatableindex(function(t,k)
+ local v={ "slot",0,k }
+ t[k]=v
+ return v
+end)
+local right=setmetatableindex(function(t,k)
+ local v={ "right",k }
+ t[k]=v
+ return v
+end)
+local left=setmetatableindex(function(t,k)
+ local v={ "right",-k }
+ t[k]=v
+ return v
+end)
+local down=setmetatableindex(function(t,k)
+ local v={ "down",k }
+ t[k]=v
+ return v
+end)
+local up=setmetatableindex(function(t,k)
+ local v={ "down",-k }
+ t[k]=v
+ return v
+end)
+helpers.commands=utilities.storage.allocate {
+ char=char,
+ right=right,
+ left=left,
+ down=down,
+ up=up,
+ push=push,
+ pop=pop,
+ dummy=dummy,
+}
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-otr']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local next,type,tonumber=next,type,tonumber
+local byte,lower,char,gsub=string.byte,string.lower,string.char,string.gsub
+local fullstrip=string.fullstrip
+local floor,round=math.floor,math.round
+local P,R,S,C,Cs,Cc,Ct,Carg,Cmt=lpeg.P,lpeg.R,lpeg.S,lpeg.C,lpeg.Cs,lpeg.Cc,lpeg.Ct,lpeg.Carg,lpeg.Cmt
+local lpegmatch=lpeg.match
+local rshift=bit32.rshift
+local setmetatableindex=table.setmetatableindex
+local sortedkeys=table.sortedkeys
+local sortedhash=table.sortedhash
+local stripstring=string.nospaces
+local utf16_to_utf8_be=utf.utf16_to_utf8_be
+local report=logs.reporter("otf reader")
+local report_cmap=logs.reporter("otf reader","cmap")
+local trace_cmap=false  trackers.register("otf.cmap",function(v) trace_cmap=v end)
+local trace_cmap_details=false  trackers.register("otf.cmap.details",function(v) trace_cmap_details=v end)
+fonts=fonts or {}
+local handlers=fonts.handlers or {}
+fonts.handlers=handlers
+local otf=handlers.otf or {}
+handlers.otf=otf
+local readers=otf.readers or {}
+otf.readers=readers
+local streamreader=utilities.files   
+local streamwriter=utilities.files
+readers.streamreader=streamreader
+readers.streamwriter=streamwriter
+local openfile=streamreader.open
+local closefile=streamreader.close
+local setposition=streamreader.setposition
+local skipshort=streamreader.skipshort
+local readbytes=streamreader.readbytes
+local readstring=streamreader.readstring
+local readbyte=streamreader.readcardinal1  
+local readushort=streamreader.readcardinal2  
+local readuint=streamreader.readcardinal3  
+local readulong=streamreader.readcardinal4
+local readshort=streamreader.readinteger2   
+local readlong=streamreader.readinteger4   
+local readfixed=streamreader.readfixed4
+local read2dot14=streamreader.read2dot14  
+local readfword=readshort       
+local readufword=readushort      
+local readoffset=readushort
+local readcardinaltable=streamreader.readcardinaltable
+local readintegertable=streamreader.readintegertable
+function streamreader.readtag(f)
+ return lower(stripstring(readstring(f,4)))
+end
+local short=2
+local ushort=2
+local ulong=4
+directives.register("fonts.streamreader",function()
+ streamreader=utilities.streams
+ openfile=streamreader.open
+ closefile=streamreader.close
+ setposition=streamreader.setposition
+ skipshort=streamreader.skipshort
+ readbytes=streamreader.readbytes
+ readstring=streamreader.readstring
+ readbyte=streamreader.readcardinal1
+ readushort=streamreader.readcardinal2
+ readuint=streamreader.readcardinal3
+ readulong=streamreader.readcardinal4
+ readshort=streamreader.readinteger2
+ readlong=streamreader.readinteger4
+ readfixed=streamreader.readfixed4
+ read2dot14=streamreader.read2dot14
+ readfword=readshort
+ readufword=readushort
+ readoffset=readushort
+ readcardinaltable=streamreader.readcardinaltable
+ readintegertable=streamreader.readintegertable
+ function streamreader.readtag(f)
+  return lower(stripstring(readstring(f,4)))
+ end
+end)
+local function readlongdatetime(f)
+ local a,b,c,d,e,f,g,h=readbytes(f,8)
+ return 0x100000000*d+0x1000000*e+0x10000*f+0x100*g+h
+end
+local tableversion=0.004
+readers.tableversion=tableversion
+local privateoffset=fonts.constructors and fonts.constructors.privateoffset or 0xF0000
+local reservednames={ [0]="copyright",
+ "family",
+ "subfamily",
+ "uniqueid",
+ "fullname",
+ "version",
+ "postscriptname",
+ "trademark",
+ "manufacturer",
+ "designer",
+ "description",
+ "vendorurl",
+ "designerurl",
+ "license",
+ "licenseurl",
+ "reserved",
+ "typographicfamily",
+ "typographicsubfamily",
+ "compatiblefullname",
+ "sampletext",
+ "cidfindfontname",
+ "wwsfamily",
+ "wwssubfamily",
+ "lightbackgroundpalette",
+ "darkbackgroundpalette",
+ "variationspostscriptnameprefix",
+}
+local platforms={ [0]="unicode",
+ "macintosh",
+ "iso",
+ "windows",
+ "custom",
+}
+local encodings={
+ unicode={ [0]="unicode 1.0 semantics",
+  "unicode 1.1 semantics",
+  "iso/iec 10646",
+  "unicode 2.0 bmp",
+  "unicode 2.0 full",
+  "unicode variation sequences",
+  "unicode full repertoire",
+ },
+ macintosh={ [0]="roman","japanese","chinese (traditional)","korean","arabic","hebrew","greek","russian",
+  "rsymbol","devanagari","gurmukhi","gujarati","oriya","bengali","tamil","telugu","kannada",
+  "malayalam","sinhalese","burmese","khmer","thai","laotian","georgian","armenian",
+  "chinese (simplified)","tibetan","mongolian","geez","slavic","vietnamese","sindhi",
+  "uninterpreted",
+ },
+ iso={ [0]="7-bit ascii",
+  "iso 10646",
+  "iso 8859-1",
+ },
+ windows={ [0]="symbol",
+  "unicode bmp",
+  "shiftjis",
+  "prc",
+  "big5",
+  "wansung",
+  "johab",
+  "reserved 7",
+  "reserved 8",
+  "reserved 9",
+  "unicode ucs-4",
+ },
+ custom={
+ }
+}
+local decoders={
+ unicode={},
+ macintosh={},
+ iso={},
+ windows={
+  ["unicode semantics"]=utf16_to_utf8_be,
+  ["unicode bmp"]=utf16_to_utf8_be,
+  ["unicode full"]=utf16_to_utf8_be,
+  ["unicode 1.0 semantics"]=utf16_to_utf8_be,
+  ["unicode 1.1 semantics"]=utf16_to_utf8_be,
+  ["unicode 2.0 bmp"]=utf16_to_utf8_be,
+  ["unicode 2.0 full"]=utf16_to_utf8_be,
+  ["unicode variation sequences"]=utf16_to_utf8_be,
+  ["unicode full repertoire"]=utf16_to_utf8_be,
+ },
+ custom={},
+}
+local languages={
+ unicode={
+  [  0]="english",
+ },
+ macintosh={
+  [  0]="english",
+ },
+ iso={},
+ windows={
+  [0x0409]="english - united states",
+ },
+ custom={},
+}
+local standardromanencoding={ [0]=
+ "notdef",".null","nonmarkingreturn","space","exclam","quotedbl",
+ "numbersign","dollar","percent","ampersand","quotesingle","parenleft",
+ "parenright","asterisk","plus","comma","hyphen","period","slash",
+ "zero","one","two","three","four","five","six","seven","eight",
+ "nine","colon","semicolon","less","equal","greater","question","at",
+ "A","B","C","D","E","F","G","H","I","J","K","L","M","N","O",
+ "P","Q","R","S","T","U","V","W","X","Y","Z","bracketleft",
+ "backslash","bracketright","asciicircum","underscore","grave","a","b",
+ "c","d","e","f","g","h","i","j","k","l","m","n","o","p","q",
+ "r","s","t","u","v","w","x","y","z","braceleft","bar",
+ "braceright","asciitilde","Adieresis","Aring","Ccedilla","Eacute",
+ "Ntilde","Odieresis","Udieresis","aacute","agrave","acircumflex",
+ "adieresis","atilde","aring","ccedilla","eacute","egrave",
+ "ecircumflex","edieresis","iacute","igrave","icircumflex","idieresis",
+ "ntilde","oacute","ograve","ocircumflex","odieresis","otilde","uacute",
+ "ugrave","ucircumflex","udieresis","dagger","degree","cent","sterling",
+ "section","bullet","paragraph","germandbls","registered","copyright",
+ "trademark","acute","dieresis","notequal","AE","Oslash","infinity",
+ "plusminus","lessequal","greaterequal","yen","mu","partialdiff",
+ "summation","product","pi","integral","ordfeminine","ordmasculine",
+ "Omega","ae","oslash","questiondown","exclamdown","logicalnot",
+ "radical","florin","approxequal","Delta","guillemotleft",
+ "guillemotright","ellipsis","nonbreakingspace","Agrave","Atilde",
+ "Otilde","OE","oe","endash","emdash","quotedblleft","quotedblright",
+ "quoteleft","quoteright","divide","lozenge","ydieresis","Ydieresis",
+ "fraction","currency","guilsinglleft","guilsinglright","fi","fl",
+ "daggerdbl","periodcentered","quotesinglbase","quotedblbase",
+ "perthousand","Acircumflex","Ecircumflex","Aacute","Edieresis","Egrave",
+ "Iacute","Icircumflex","Idieresis","Igrave","Oacute","Ocircumflex",
+ "apple","Ograve","Uacute","Ucircumflex","Ugrave","dotlessi",
+ "circumflex","tilde","macron","breve","dotaccent","ring","cedilla",
+ "hungarumlaut","ogonek","caron","Lslash","lslash","Scaron","scaron",
+ "Zcaron","zcaron","brokenbar","Eth","eth","Yacute","yacute","Thorn",
+ "thorn","minus","multiply","onesuperior","twosuperior","threesuperior",
+ "onehalf","onequarter","threequarters","franc","Gbreve","gbreve",
+ "Idotaccent","Scedilla","scedilla","Cacute","cacute","Ccaron","ccaron",
+ "dcroat",
+}
+local weights={
+ [100]="thin",
+ [200]="extralight",
+ [300]="light",
+ [400]="normal",
+ [500]="medium",
+ [600]="semibold",
+ [700]="bold",
+ [800]="extrabold",
+ [900]="black",
+}
+local widths={
+ [1]="ultracondensed",
+ [2]="extracondensed",
+ [3]="condensed",
+ [4]="semicondensed",
+ [5]="normal",
+ [6]="semiexpanded",
+ [7]="expanded",
+ [8]="extraexpanded",
+ [9]="ultraexpanded",
+}
+setmetatableindex(weights,function(t,k)
+ local r=floor((k+50)/100)*100
+ local v=(r>900 and "black") or rawget(t,r) or "normal"
+ return v
+end)
+setmetatableindex(widths,function(t,k)
+ return "normal"
+end)
+local panoseweights={
+ [ 0]="normal",
+ [ 1]="normal",
+ [ 2]="verylight",
+ [ 3]="light",
+ [ 4]="thin",
+ [ 5]="book",
+ [ 6]="medium",
+ [ 7]="demi",
+ [ 8]="bold",
+ [ 9]="heavy",
+ [10]="black",
+}
+local panosewidths={
+ [ 0]="normal",
+ [ 1]="normal",
+ [ 2]="normal",
+ [ 3]="normal",
+ [ 4]="normal",
+ [ 5]="expanded",
+ [ 6]="condensed",
+ [ 7]="veryexpanded",
+ [ 8]="verycondensed",
+ [ 9]="monospaced",
+}
+local helpers={}
+readers.helpers=helpers
+local function gotodatatable(f,fontdata,tag,criterium)
+ if criterium and f then
+  local tables=fontdata.tables
+  if tables then
+   local datatable=tables[tag]
+   if datatable then
+    local tableoffset=datatable.offset
+    setposition(f,tableoffset)
+    return tableoffset
+   end
+  else
+   report("no tables")
+  end
+ end
+end
+local function reportskippedtable(f,fontdata,tag,criterium)
+ if criterium and f then
+  local tables=fontdata.tables
+  if tables then
+   local datatable=tables[tag]
+   if datatable then
+    report("loading of table %a skipped",tag)
+   end
+  else
+   report("no tables")
+  end
+ end
+end
+local function setvariabledata(fontdata,tag,data)
+ local variabledata=fontdata.variabledata
+ if variabledata then
+  variabledata[tag]=data
+ else
+  fontdata.variabledata={ [tag]=data }
+ end
+end
+helpers.gotodatatable=gotodatatable
+helpers.setvariabledata=setvariabledata
+helpers.reportskippedtable=reportskippedtable
+local platformnames={
+ postscriptname=true,
+ fullname=true,
+ family=true,
+ subfamily=true,
+ typographicfamily=true,
+ typographicsubfamily=true,
+ compatiblefullname=true,
+}
+local platformextras={
+ uniqueid=true,
+ version=true,
+ copyright=true,
+ license=true,
+ licenseurl=true,
+ manufacturer=true,
+ vendorurl=true,
+}
+function readers.name(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"name",true)
+ if tableoffset then
+  local format=readushort(f)
+  local nofnames=readushort(f)
+  local offset=readushort(f)
+  local start=tableoffset+offset
+  local namelists={
+   unicode={},
+   windows={},
+   macintosh={},
+  }
+  for i=1,nofnames do
+   local platform=platforms[readushort(f)]
+   if platform then
+    local namelist=namelists[platform]
+    if namelist then
+     local encoding=readushort(f)
+     local language=readushort(f)
+     local encodings=encodings[platform]
+     local languages=languages[platform]
+     if encodings and languages then
+      local encoding=encodings[encoding]
+      local language=languages[language]
+      if encoding and language then
+       local index=readushort(f)
+       local name=reservednames[index]
+       namelist[#namelist+1]={
+        platform=platform,
+        encoding=encoding,
+        language=language,
+        name=name,
+        index=index,
+        length=readushort(f),
+        offset=start+readushort(f),
+       }
+      else
+       skipshort(f,3)
+      end
+     else
+      skipshort(f,3)
+     end
+    else
+     skipshort(f,5)
+    end
+   else
+    skipshort(f,5)
+   end
+  end
+  local names={}
+  local done={}
+  local extras={}
+  local function decoded(platform,encoding,content)
+   local decoder=decoders[platform]
+   if decoder then
+    decoder=decoder[encoding]
+   end
+   if decoder then
+    return decoder(content)
+   else
+    return content
+   end
+  end
+  local function filter(platform,e,l)
+   local namelist=namelists[platform]
+   for i=1,#namelist do
+    local name=namelist[i]
+    local nametag=name.name
+    local index=name.index
+    if not done[nametag or i] then
+     local encoding=name.encoding
+     local language=name.language
+     if (not e or encoding==e) and (not l or language==l) then
+      setposition(f,name.offset)
+      local content=decoded(platform,encoding,readstring(f,name.length))
+      if nametag then
+       names[nametag]={
+        content=content,
+        platform=platform,
+        encoding=encoding,
+        language=language,
+       }
+      end
+      extras[index]=content
+      done[nametag or i]=true
+     end
+    end
+   end
+  end
+  filter("windows","unicode bmp","english - united states")
+  filter("macintosh","roman","english")
+  filter("windows")
+  filter("macintosh")
+  filter("unicode")
+  fontdata.names=names
+  fontdata.extras=extras
+  if specification.platformnames then
+   local collected={}
+   local platformextras=specification.platformextras and platformextras
+   for platform,namelist in next,namelists do
+    local filtered=false
+    for i=1,#namelist do
+     local entry=namelist[i]
+     local name=entry.name
+     if platformnames[name] or (platformextras and platformextras[name]) then
+      setposition(f,entry.offset)
+      local content=decoded(platform,entry.encoding,readstring(f,entry.length))
+      if filtered then
+       filtered[name]=content
+      else
+       filtered={ [name]=content }
+      end
+     end
+    end
+    if filtered then
+     collected[platform]=filtered
+    end
+   end
+   fontdata.platformnames=collected
+  end
+ else
+  fontdata.names={}
+ end
+end
+local validutf=lpeg.patterns.validutf8
+local function getname(fontdata,key)
+ local names=fontdata.names
+ if names then
+  local value=names[key]
+  if value then
+   local content=value.content
+   return lpegmatch(validutf,content) and content or nil
+  end
+ end
+end
+readers["os/2"]=function(f,fontdata)
+ local tableoffset=gotodatatable(f,fontdata,"os/2",true)
+ if tableoffset then
+  local version=readushort(f)
+  local windowsmetrics={
+   version=version,
+   averagewidth=readshort(f),
+   weightclass=readushort(f),
+   widthclass=readushort(f),
+   fstype=readushort(f),
+   subscriptxsize=readshort(f),
+   subscriptysize=readshort(f),
+   subscriptxoffset=readshort(f),
+   subscriptyoffset=readshort(f),
+   superscriptxsize=readshort(f),
+   superscriptysize=readshort(f),
+   superscriptxoffset=readshort(f),
+   superscriptyoffset=readshort(f),
+   strikeoutsize=readshort(f),
+   strikeoutpos=readshort(f),
+   familyclass=readshort(f),
+   panose={ readbytes(f,10) },
+   unicoderanges={ readulong(f),readulong(f),readulong(f),readulong(f) },
+   vendor=readstring(f,4),
+   fsselection=readushort(f),
+   firstcharindex=readushort(f),
+   lastcharindex=readushort(f),
+   typoascender=readshort(f),
+   typodescender=readshort(f),
+   typolinegap=readshort(f),
+   winascent=readushort(f),
+   windescent=readushort(f),
+  }
+  if version>=1 then
+   windowsmetrics.codepageranges={ readulong(f),readulong(f) }
+  end
+  if version>=2 then
+   windowsmetrics.xheight=readshort(f)
+   windowsmetrics.capheight=readshort(f)
+   windowsmetrics.defaultchar=readushort(f)
+   windowsmetrics.breakchar=readushort(f)
+  end
+  windowsmetrics.weight=windowsmetrics.weightclass and weights[windowsmetrics.weightclass]
+  windowsmetrics.width=windowsmetrics.widthclass and  widths [windowsmetrics.widthclass]
+  windowsmetrics.panoseweight=panoseweights[windowsmetrics.panose[3]]
+  windowsmetrics.panosewidth=panosewidths [windowsmetrics.panose[4]]
+  fontdata.windowsmetrics=windowsmetrics
+ else
+  fontdata.windowsmetrics={}
+ end
+end
+readers.head=function(f,fontdata)
+ local tableoffset=gotodatatable(f,fontdata,"head",true)
+ if tableoffset then
+  local version=readulong(f)
+  local fontversion=readulong(f)
+  local fontheader={
+   version=version,
+   fontversion=number.to16dot16(fontversion),
+   fontversionnumber=fontversion,
+   checksum=readushort(f)*0x10000+readushort(f),
+   magic=readulong(f),
+   flags=readushort(f),
+   units=readushort(f),
+   created=readlongdatetime(f),
+   modified=readlongdatetime(f),
+   xmin=readshort(f),
+   ymin=readshort(f),
+   xmax=readshort(f),
+   ymax=readshort(f),
+   macstyle=readushort(f),
+   smallpixels=readushort(f),
+   directionhint=readshort(f),
+   indextolocformat=readshort(f),
+   glyphformat=readshort(f),
+  }
+  fontdata.fontheader=fontheader
+ else
+  fontdata.fontheader={}
+ end
+ fontdata.nofglyphs=0
+end
+readers.hhea=function(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"hhea",specification.details)
+ if tableoffset then
+  fontdata.horizontalheader={
+   version=readulong(f),
+   ascender=readfword(f),
+   descender=readfword(f),
+   linegap=readfword(f),
+   maxadvancewidth=readufword(f),
+   minleftsidebearing=readfword(f),
+   minrightsidebearing=readfword(f),
+   maxextent=readfword(f),
+   caretsloperise=readshort(f),
+   caretsloperun=readshort(f),
+   caretoffset=readshort(f),
+   reserved_1=readshort(f),
+   reserved_2=readshort(f),
+   reserved_3=readshort(f),
+   reserved_4=readshort(f),
+   metricdataformat=readshort(f),
+   nofmetrics=readushort(f),
+  }
+ else
+  fontdata.horizontalheader={
+   nofmetrics=0,
+  }
+ end
+end
+readers.vhea=function(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"vhea",specification.details)
+ if tableoffset then
+  fontdata.verticalheader={
+   version=readulong(f),
+   ascender=readfword(f),
+   descender=readfword(f),
+   linegap=readfword(f),
+   maxadvanceheight=readufword(f),
+   mintopsidebearing=readfword(f),
+   minbottomsidebearing=readfword(f),
+   maxextent=readfword(f),
+   caretsloperise=readshort(f),
+   caretsloperun=readshort(f),
+   caretoffset=readshort(f),
+   reserved_1=readshort(f),
+   reserved_2=readshort(f),
+   reserved_3=readshort(f),
+   reserved_4=readshort(f),
+   metricdataformat=readshort(f),
+   nofmetrics=readushort(f),
+  }
+ else
+  fontdata.verticalheader={
+   nofmetrics=0,
+  }
+ end
+end
+readers.maxp=function(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"maxp",specification.details)
+ if tableoffset then
+  local version=readulong(f)
+  local nofglyphs=readushort(f)
+  fontdata.nofglyphs=nofglyphs
+  if version==0x00005000 then
+   fontdata.maximumprofile={
+    version=version,
+    nofglyphs=nofglyphs,
+   }
+  elseif version==0x00010000 then
+   fontdata.maximumprofile={
+    version=version,
+    nofglyphs=nofglyphs,
+    points=readushort(f),
+    contours=readushort(f),
+    compositepoints=readushort(f),
+    compositecontours=readushort(f),
+    zones=readushort(f),
+    twilightpoints=readushort(f),
+    storage=readushort(f),
+    functiondefs=readushort(f),
+    instructiondefs=readushort(f),
+    stackelements=readushort(f),
+    sizeofinstructions=readushort(f),
+    componentelements=readushort(f),
+    componentdepth=readushort(f),
+   }
+  else
+   fontdata.maximumprofile={
+    version=version,
+    nofglyphs=0,
+   }
+  end
+ end
+end
+readers.hmtx=function(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"hmtx",specification.glyphs)
+ if tableoffset then
+  local horizontalheader=fontdata.horizontalheader
+  local nofmetrics=horizontalheader.nofmetrics
+  local glyphs=fontdata.glyphs
+  local nofglyphs=fontdata.nofglyphs
+  local width=0 
+  local leftsidebearing=0
+  for i=0,nofmetrics-1 do
+   local glyph=glyphs[i]
+   width=readshort(f) 
+   leftsidebearing=readshort(f)
+   if width~=0 then
+    glyph.width=width
+   end
+  end
+  for i=nofmetrics,nofglyphs-1 do
+   local glyph=glyphs[i]
+   if width~=0 then
+    glyph.width=width
+   end
+  end
+ end
+end
+readers.vmtx=function(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"vmtx",specification.glyphs)
+ if tableoffset then
+  local verticalheader=fontdata.verticalheader
+  local nofmetrics=verticalheader.nofmetrics
+  local glyphs=fontdata.glyphs
+  local nofglyphs=fontdata.nofglyphs
+  local vheight=0
+  local vdefault=verticalheader.ascender-verticalheader.descender
+  local topsidebearing=0
+  for i=0,nofmetrics-1 do
+   local glyph=glyphs[i]
+   vheight=readushort(f)
+   topsidebearing=readshort(f)
+   if vheight~=0 and vheight~=vdefault then
+    glyph.vheight=vheight
+   end
+   if topsidebearing~=0 then
+    glyph.tsb=topsidebearing
+   end
+  end
+  for i=nofmetrics,nofglyphs-1 do
+   local glyph=glyphs[i]
+   if vheight~=0 and vheight~=vdefault then
+    glyph.vheight=vheight
+   end
+  end
+ end
+end
+readers.vorg=function(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"vorg",specification.glyphs)
+end
+readers.post=function(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"post",true)
+ if tableoffset then
+  local version=readulong(f)
+  fontdata.postscript={
+   version=version,
+   italicangle=round(1000*readfixed(f))/1000,
+   underlineposition=readfword(f),
+   underlinethickness=readfword(f),
+   monospaced=readulong(f),
+   minmemtype42=readulong(f),
+   maxmemtype42=readulong(f),
+   minmemtype1=readulong(f),
+   maxmemtype1=readulong(f),
+  }
+  if not specification.glyphs then
+  elseif version==0x00010000 then
+   for index=0,#standardromanencoding do
+    glyphs[index].name=standardromanencoding[index]
+   end
+  elseif version==0x00020000 then
+   local glyphs=fontdata.glyphs
+   local nofglyphs=readushort(f)
+   local indices={}
+   local names={}
+   local maxnames=0
+   for i=0,nofglyphs-1 do
+    local nameindex=readushort(f)
+    if nameindex>=258 then
+     maxnames=maxnames+1
+     nameindex=nameindex-257
+     indices[nameindex]=i
+    else
+     glyphs[i].name=standardromanencoding[nameindex]
+    end
+   end
+   for i=1,maxnames do
+    local mapping=indices[i]
+    if not mapping then
+     report("quit post name fetching at %a of %a: %s",i,maxnames,"no index")
+     break
+    else
+     local length=readbyte(f)
+     if length>0 then
+      glyphs[mapping].name=readstring(f,length)
+     else
+      report("quit post name fetching at %a of %a: %s",i,maxnames,"overflow")
+      break
+     end
+    end
+   end
+  end
+ else
+  fontdata.postscript={}
+ end
+end
+readers.cff=function(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"cff",specification.glyphs)
+end
+local formatreaders={}
+local duplicatestoo=true
+local sequence={
+ { 3,1,4 },
+ { 3,10,12 },
+ { 0,3,4 },
+ { 0,3,12 },
+ { 0,1,4 },
+ { 0,1,12 },
+ { 0,0,6 },
+ { 3,0,6 },
+ { 3,0,4 },
+ { 0,5,14 },
+ { 0,4,12 },
+ { 3,10,13 },
+}
+local supported={}
+for i=1,#sequence do
+ local si=sequence[i]
+ local sp,se,sf=si[1],si[2],si[3]
+ local p=supported[sp]
+ if not p then
+  p={}
+  supported[sp]=p
+ end
+ local e=p[se]
+ if not e then
+  e={}
+  p[se]=e
+ end
+ e[sf]=true
+end
+formatreaders[4]=function(f,fontdata,offset)
+ setposition(f,offset+2)
+ local length=readushort(f) 
+ local language=readushort(f)
+ local nofsegments=readushort(f)/2
+ skipshort(f,3)
+ local mapping=fontdata.mapping
+ local glyphs=fontdata.glyphs
+ local duplicates=fontdata.duplicates
+ local nofdone=0
+ local endchars=readcardinaltable(f,nofsegments,ushort)
+ local reserved=readushort(f) 
+ local startchars=readcardinaltable(f,nofsegments,ushort)
+ local deltas=readcardinaltable(f,nofsegments,ushort)
+ local offsets=readcardinaltable(f,nofsegments,ushort)
+ local size=(length-2*2-5*2-4*2*nofsegments)/2
+ local indices=readcardinaltable(f,size-1,ushort)
+ for segment=1,nofsegments do
+  local startchar=startchars[segment]
+  local endchar=endchars[segment]
+  local offset=offsets[segment]
+  local delta=deltas[segment]
+  if startchar==0xFFFF and endchar==0xFFFF then
+  elseif startchar==0xFFFF and offset==0 then
+  elseif offset==0xFFFF then
+  elseif offset==0 then
+   if trace_cmap_details then
+    report("format 4.%i segment %2i from %C upto %C at index %H",1,segment,startchar,endchar,(startchar+delta)%65536)
+   end
+   for unicode=startchar,endchar do
+    local index=(unicode+delta)%65536
+    if index and index>0 then
+     local glyph=glyphs[index]
+     if glyph then
+      local gu=glyph.unicode
+      if not gu then
+       glyph.unicode=unicode
+       nofdone=nofdone+1
+      elseif gu~=unicode then
+       if duplicatestoo then
+        local d=duplicates[gu]
+        if d then
+         d[unicode]=true
+        else
+         duplicates[gu]={ [unicode]=true }
+        end
+       else
+        report("duplicate case 1: %C %04i %s",unicode,index,glyphs[index].name)
+       end
+      end
+      if not mapping[index] then
+       mapping[index]=unicode
+      end
+     end
+    end
+   end
+  else
+   local shift=(segment-nofsegments+offset/2)-startchar
+   if trace_cmap_details then
+    report_cmap("format 4.%i segment %2i from %C upto %C at index %H",0,segment,startchar,endchar,(startchar+delta)%65536)
+   end
+   for unicode=startchar,endchar do
+    local slot=shift+unicode
+    local index=indices[slot]
+    if index and index>0 then
+     index=(index+delta)%65536
+     local glyph=glyphs[index]
+     if glyph then
+      local gu=glyph.unicode
+      if not gu then
+       glyph.unicode=unicode
+       nofdone=nofdone+1
+      elseif gu~=unicode then
+       if duplicatestoo then
+        local d=duplicates[gu]
+        if d then
+         d[unicode]=true
+        else
+         duplicates[gu]={ [unicode]=true }
+        end
+       else
+        report("duplicate case 2: %C %04i %s",unicode,index,glyphs[index].name)
+       end
+      end
+      if not mapping[index] then
+       mapping[index]=unicode
+      end
+     end
+    end
+   end
+  end
+ end
+ return nofdone
+end
+formatreaders[6]=function(f,fontdata,offset)
+ setposition(f,offset) 
+ local format=readushort(f)
+ local length=readushort(f)
+ local language=readushort(f)
+ local mapping=fontdata.mapping
+ local glyphs=fontdata.glyphs
+ local duplicates=fontdata.duplicates
+ local start=readushort(f)
+ local count=readushort(f)
+ local stop=start+count-1
+ local nofdone=0
+ if trace_cmap_details then
+  report_cmap("format 6 from %C to %C",2,start,stop)
+ end
+ for unicode=start,stop do
+  local index=readushort(f)
+  if index>0 then
+   local glyph=glyphs[index]
+   if glyph then
+    local gu=glyph.unicode
+    if not gu then
+     glyph.unicode=unicode
+     nofdone=nofdone+1
+    elseif gu~=unicode then
+    end
+    if not mapping[index] then
+     mapping[index]=unicode
+    end
+   end
+  end
+ end
+ return nofdone
+end
+formatreaders[12]=function(f,fontdata,offset)
+ setposition(f,offset+2+2+4+4) 
+ local mapping=fontdata.mapping
+ local glyphs=fontdata.glyphs
+ local duplicates=fontdata.duplicates
+ local nofgroups=readulong(f)
+ local nofdone=0
+ for i=1,nofgroups do
+  local first=readulong(f)
+  local last=readulong(f)
+  local index=readulong(f)
+  if trace_cmap_details then
+   report_cmap("format 12 from %C to %C starts at index %i",first,last,index)
+  end
+  for unicode=first,last do
+   local glyph=glyphs[index]
+   if glyph then
+    local gu=glyph.unicode
+    if not gu then
+     glyph.unicode=unicode
+     nofdone=nofdone+1
+    elseif gu~=unicode then
+     local d=duplicates[gu]
+     if d then
+      d[unicode]=true
+     else
+      duplicates[gu]={ [unicode]=true }
+     end
+    end
+    if not mapping[index] then
+     mapping[index]=unicode
+    end
+   end
+   index=index+1
+  end
+ end
+ return nofdone
+end
+formatreaders[13]=function(f,fontdata,offset)
+ setposition(f,offset+2+2+4+4) 
+ local mapping=fontdata.mapping
+ local glyphs=fontdata.glyphs
+ local duplicates=fontdata.duplicates
+ local nofgroups=readulong(f)
+ local nofdone=0
+ for i=1,nofgroups do
+  local first=readulong(f)
+  local last=readulong(f)
+  local index=readulong(f)
+  if first<privateoffset then
+   if trace_cmap_details then
+    report_cmap("format 13 from %C to %C get index %i",first,last,index)
+   end
+   local glyph=glyphs[index]
+   local unicode=glyph.unicode
+   if not unicode then
+    unicode=first
+    glyph.unicode=unicode
+    first=first+1
+   end
+   local list=duplicates[unicode]
+   mapping[index]=unicode
+   if not list then
+    list={}
+    duplicates[unicode]=list
+   end
+   if last>=privateoffset then
+    local limit=privateoffset-1
+    report("format 13 from %C to %C pruned to %C",first,last,limit)
+    last=limit
+   end
+   for unicode=first,last do
+    list[unicode]=true
+   end
+   nofdone=nofdone+last-first+1
+  else
+   report("format 13 from %C to %C ignored",first,last)
+  end
+ end
+ return nofdone
+end
+formatreaders[14]=function(f,fontdata,offset)
+ if offset and offset~=0 then
+  setposition(f,offset)
+  local format=readushort(f)
+  local length=readulong(f)
+  local nofrecords=readulong(f)
+  local records={}
+  local variants={}
+  local nofdone=0
+  fontdata.variants=variants
+  for i=1,nofrecords do
+   records[i]={
+    selector=readuint(f),
+    default=readulong(f),
+    other=readulong(f),
+   }
+  end
+  for i=1,nofrecords do
+   local record=records[i]
+   local selector=record.selector
+   local default=record.default
+   local other=record.other
+   local other=record.other
+   if other~=0 then
+    setposition(f,offset+other)
+    local mapping={}
+    local count=readulong(f)
+    for i=1,count do
+     mapping[readuint(f)]=readushort(f)
+    end
+    nofdone=nofdone+count
+    variants[selector]=mapping
+   end
+  end
+  return nofdone
+ else
+  return 0
+ end
+end
+local function checkcmap(f,fontdata,records,platform,encoding,format)
+ local pdata=records[platform]
+ if not pdata then
+  if trace_cmap_details then
+   report_cmap("skipped, %s, p=%i e=%i f=%i","no platform",platform,encoding,format)
+  end
+  return 0
+ end
+ local edata=pdata[encoding]
+ if not edata then
+  if trace_cmap_details then
+   report_cmap("skipped, %s, p=%i e=%i f=%i","no encoding",platform,encoding,format)
+  end
+  return 0
+ end
+ local fdata=edata[format]
+ if not fdata then
+  if trace_cmap_details then
+   report_cmap("skipped, %s, p=%i e=%i f=%i","no format",platform,encoding,format)
+  end
+  return 0
+ elseif type(fdata)~="number" then
+  if trace_cmap_details then
+   report_cmap("skipped, %s, p=%i e=%i f=%i","already done",platform,encoding,format)
+  end
+  return 0
+ end
+ edata[format]=true 
+ local reader=formatreaders[format]
+ if not reader then
+  if trace_cmap_details then
+   report_cmap("skipped, %s, p=%i e=%i f=%i","unsupported format",platform,encoding,format)
+  end
+  return 0
+ end
+ local n=reader(f,fontdata,fdata) or 0
+ if trace_cmap_details or trace_cmap then
+  local p=platforms[platform]
+  local e=encodings[p]
+  report_cmap("checked, platform %i (%s), encoding %i (%s), format %i, new unicodes %i",
+   platform,p,encoding,e and e[encoding] or "?",format,n)
+ end
+ return n
+end
+function readers.cmap(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"cmap",specification.glyphs)
+ if tableoffset then
+  local version=readushort(f)
+  local noftables=readushort(f)
+  local records={}
+  local unicodecid=false
+  local variantcid=false
+  local variants={}
+  local duplicates=fontdata.duplicates or {}
+  fontdata.duplicates=duplicates
+  for i=1,noftables do
+   local platform=readushort(f)
+   local encoding=readushort(f)
+   local offset=readulong(f)
+   local record=records[platform]
+   if not record then
+    records[platform]={
+     [encoding]={
+      offsets={ offset },
+      formats={},
+     }
+    }
+   else
+    local subtables=record[encoding]
+    if not subtables then
+     record[encoding]={
+      offsets={ offset },
+      formats={},
+     }
+    else
+     local offsets=subtables.offsets
+     offsets[#offsets+1]=offset
+    end
+   end
+  end
+  if trace_cmap then
+   report("found cmaps:")
+  end
+  for platform,record in sortedhash(records) do
+   local p=platforms[platform]
+   local e=encodings[p]
+   local sp=supported[platform]
+   local ps=p or "?"
+   if trace_cmap then
+    if sp then
+     report("  platform %i: %s",platform,ps)
+    else
+     report("  platform %i: %s (unsupported)",platform,ps)
+    end
+   end
+   for encoding,subtables in sortedhash(record) do
+    local se=sp and sp[encoding]
+    local es=e and e[encoding] or "?"
+    if trace_cmap then
+     if se then
+      report("    encoding %i: %s",encoding,es)
+     else
+      report("    encoding %i: %s (unsupported)",encoding,es)
+     end
+    end
+    local offsets=subtables.offsets
+    local formats=subtables.formats
+    for i=1,#offsets do
+     local offset=tableoffset+offsets[i]
+     setposition(f,offset)
+     formats[readushort(f)]=offset
+    end
+    record[encoding]=formats
+    if trace_cmap then
+     local list=sortedkeys(formats)
+     for i=1,#list do
+      if not (se and se[list[i]]) then
+       list[i]=list[i].." (unsupported)"
+      end
+     end
+     report("      formats: % t",list)
+    end
+   end
+  end
+  local ok=false
+  for i=1,#sequence do
+   local si=sequence[i]
+   local sp,se,sf=si[1],si[2],si[3]
+   if checkcmap(f,fontdata,records,sp,se,sf)>0 then
+    ok=true
+   end
+  end
+  if not ok then
+   report("no useable unicode cmap found")
+  end
+  fontdata.cidmaps={
+   version=version,
+   noftables=noftables,
+   records=records,
+  }
+ else
+  fontdata.cidmaps={}
+ end
+end
+function readers.loca(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"loca",specification.glyphs)
+end
+function readers.glyf(f,fontdata,specification) 
+ reportskippedtable(f,fontdata,"glyf",specification.glyphs)
+end
+function readers.colr(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"colr",specification.glyphs)
+end
+function readers.cpal(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"cpal",specification.glyphs)
+end
+function readers.svg(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"svg",specification.glyphs)
+end
+function readers.sbix(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"sbix",specification.glyphs)
+end
+function readers.cbdt(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"cbdt",specification.glyphs)
+end
+function readers.cblc(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"cblc",specification.glyphs)
+end
+function readers.ebdt(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"ebdt",specification.glyphs)
+end
+function readers.ebsc(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"ebsc",specification.glyphs)
+end
+function readers.eblc(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"eblc",specification.glyphs)
+end
+function readers.kern(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"kern",specification.kerns)
+ if tableoffset then
+  local version=readushort(f)
+  local noftables=readushort(f)
+  for i=1,noftables do
+   local version=readushort(f)
+   local length=readushort(f)
+   local coverage=readushort(f)
+   local format=rshift(coverage,8) 
+   if format==0 then
+    local nofpairs=readushort(f)
+    local searchrange=readushort(f)
+    local entryselector=readushort(f)
+    local rangeshift=readushort(f)
+    local kerns={}
+    local glyphs=fontdata.glyphs
+    for i=1,nofpairs do
+     local left=readushort(f)
+     local right=readushort(f)
+     local kern=readfword(f)
+     local glyph=glyphs[left]
+     local kerns=glyph.kerns
+     if kerns then
+      kerns[right]=kern
+     else
+      glyph.kerns={ [right]=kern }
+     end
+    end
+   elseif format==2 then
+    report("todo: kern classes")
+   else
+    report("todo: kerns")
+   end
+  end
+ end
+end
+function readers.gdef(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"gdef",specification.details)
+end
+function readers.gsub(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"gsub",specification.details)
+end
+function readers.gpos(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"gpos",specification.details)
+end
+function readers.math(f,fontdata,specification)
+ reportskippedtable(f,fontdata,"math",specification.details)
+end
+local function getinfo(maindata,sub,platformnames,rawfamilynames,metricstoo,instancenames)
+ local fontdata=sub and maindata.subfonts and maindata.subfonts[sub] or maindata
+ local names=fontdata.names
+ local info=nil
+ if names then
+  local metrics=fontdata.windowsmetrics or {}
+  local postscript=fontdata.postscript  or {}
+  local fontheader=fontdata.fontheader  or {}
+  local cffinfo=fontdata.cffinfo  or {}
+  local verticalheader=fontdata.verticalheader or {}
+  local filename=fontdata.filename
+  local weight=getname(fontdata,"weight") or (cffinfo and cffinfo.weight) or (metrics and metrics.weight)
+  local width=getname(fontdata,"width")  or (cffinfo and cffinfo.width ) or (metrics and metrics.width )
+  local fontname=getname(fontdata,"postscriptname")
+  local fullname=getname(fontdata,"fullname")
+  local family=getname(fontdata,"family")
+  local subfamily=getname(fontdata,"subfamily")
+  local familyname=getname(fontdata,"typographicfamily")
+  local subfamilyname=getname(fontdata,"typographicsubfamily")
+  local compatiblename=getname(fontdata,"compatiblefullname") 
+  if rawfamilynames then
+  else
+   if not familyname then familyname=family end
+   if not subfamilyname then subfamilyname=subfamily end
+  end
+  if platformnames then
+   platformnames=fontdata.platformnames
+  end
+  if instancenames then
+   local variabledata=fontdata.variabledata
+   if variabledata then
+    local instances=variabledata and variabledata.instances
+    if instances then
+     instancenames={}
+     for i=1,#instances do
+      instancenames[i]=lower(stripstring(instances[i].subfamily))
+     end
+    else
+     instancenames=nil
+    end
+   else
+    instancenames=nil
+   end
+  end
+  info={ 
+   subfontindex=fontdata.subfontindex or sub or 0,
+   version=getname(fontdata,"version"),
+   fontname=fontname,
+   fullname=fullname,
+   family=family,
+   subfamily=subfamily,
+   familyname=familyname,
+   subfamilyname=subfamilyname,
+   compatiblename=compatiblename,
+   weight=weight and lower(weight),
+   width=width and lower(width),
+   pfmweight=metrics.weightclass or 400,
+   pfmwidth=metrics.widthclass or 5,
+   panosewidth=metrics.panosewidth,
+   panoseweight=metrics.panoseweight,
+   italicangle=postscript.italicangle or 0,
+   units=fontheader.units or 0,
+   designsize=fontdata.designsize,
+   minsize=fontdata.minsize,
+   maxsize=fontdata.maxsize,
+   boundingbox=fontheader and { fontheader.xmin or 0,fontheader.ymin or 0,fontheader.xmax or 0,fontheader.ymax or 0 } or nil,
+   monospaced=(tonumber(postscript.monospaced or 0)>0) or metrics.panosewidth=="monospaced",
+   averagewidth=metrics.averagewidth,
+   xheight=metrics.xheight,
+   capheight=metrics.capheight or fontdata.maxy,
+   ascender=metrics.typoascender,
+   descender=metrics.typodescender,
+   platformnames=platformnames or nil,
+   instancenames=instancenames or nil,
+   tableoffsets=fontdata.tableoffsets,
+   defaultvheight=(verticalheader.ascender or 0)-(verticalheader.descender or 0)
+  }
+  if metricstoo then
+   local keys={
+    "version",
+    "ascender","descender","linegap",
+    "maxadvancewidth","maxadvanceheight","maxextent",
+    "minbottomsidebearing","mintopsidebearing",
+   }
+   local h=fontdata.horizontalheader or {}
+   local v=fontdata.verticalheader   or {}
+   if h then
+    local th={}
+    local tv={}
+    for i=1,#keys do
+     local key=keys[i]
+     th[key]=h[key] or 0
+     tv[key]=v[key] or 0
+    end
+    info.horizontalmetrics=th
+    info.verticalmetrics=tv
+   end
+  end
+ elseif n then
+  info={
+   filename=fontdata.filename,
+   comment="there is no info for subfont "..n,
+  }
+ else
+  info={
+   filename=fontdata.filename,
+   comment="there is no info",
+  }
+ end
+ return info
+end
+local function loadtables(f,specification,offset)
+ if offset then
+  setposition(f,offset)
+ end
+ local tables={}
+ local basename=file.basename(specification.filename)
+ local filesize=specification.filesize
+ local filetime=specification.filetime
+ local fontdata={ 
+  filename=basename,
+  filesize=filesize,
+  filetime=filetime,
+  version=readstring(f,4),
+  noftables=readushort(f),
+  searchrange=readushort(f),
+  entryselector=readushort(f),
+  rangeshift=readushort(f),
+  tables=tables,
+  foundtables=false,
+ }
+ for i=1,fontdata.noftables do
+  local tag=lower(stripstring(readstring(f,4)))
+  local checksum=readushort(f)*0x10000+readushort(f)
+  local offset=readulong(f)
+  local length=readulong(f)
+  if offset+length>filesize then
+   report("bad %a table in file %a",tag,basename)
+  end
+  tables[tag]={
+   checksum=checksum,
+   offset=offset,
+   length=length,
+  }
+ end
+ fontdata.foundtables=sortedkeys(tables)
+ if tables.cff or tables.cff2 then
+  fontdata.format="opentype"
+ else
+  fontdata.format="truetype"
+ end
+ return fontdata,tables
+end
+local function prepareglyps(fontdata)
+ local glyphs=setmetatableindex(function(t,k)
+  local v={
+   index=k,
+  }
+  t[k]=v
+  return v
+ end)
+ fontdata.glyphs=glyphs
+ fontdata.mapping={}
+end
+local function readtable(tag,f,fontdata,specification,...)
+ local reader=readers[tag]
+ if reader then
+  reader(f,fontdata,specification,...)
+ end
+end
+local variablefonts_supported=(context and true) or (logs and logs.application and true) or false
+local function readdata(f,offset,specification)
+ local fontdata,tables=loadtables(f,specification,offset)
+ if specification.glyphs then
+  prepareglyps(fontdata)
+ end
+ if not variablefonts_supported then
+  specification.instance=nil
+  specification.variable=nil
+  specification.factors=nil
+ end
+ fontdata.temporary={}
+ readtable("name",f,fontdata,specification)
+ local askedname=specification.askedname
+ if askedname then
+  local fullname=getname(fontdata,"fullname") or ""
+  local cleanname=gsub(askedname,"[^a-zA-Z0-9]","")
+  local foundname=gsub(fullname,"[^a-zA-Z0-9]","")
+  if lower(cleanname)~=lower(foundname) then
+   return 
+  end
+ end
+ readtable("stat",f,fontdata,specification)
+ readtable("avar",f,fontdata,specification)
+ readtable("fvar",f,fontdata,specification)
+ if variablefonts_supported then
+  local variabledata=fontdata.variabledata
+  if variabledata then
+   local instances=variabledata.instances
+   local axis=variabledata.axis
+   if axis and (not instances or #instances==0) then
+    instances={}
+    variabledata.instances=instances
+    local function add(n,subfamily,value)
+     local values={}
+     for i=1,#axis do
+      local a=axis[i]
+      values[i]={
+       axis=a.tag,
+       value=i==n and value or a.default,
+      }
+     end
+     instances[#instances+1]={
+      subfamily=subfamily,
+      values=values,
+     }
+    end
+    for i=1,#axis do
+     local a=axis[i]
+     local tag=a.tag
+     add(i,"default"..tag,a.default)
+     add(i,"minimum"..tag,a.minimum)
+     add(i,"maximum"..tag,a.maximum)
+    end
+   end
+  end
+  if not specification.factors then
+   local instance=specification.instance
+   if type(instance)=="string" then
+    local factors=helpers.getfactors(fontdata,instance)
+    if factors then
+     specification.factors=factors
+     fontdata.factors=factors
+     fontdata.instance=instance
+     report("user instance: %s, factors: % t",instance,factors)
+    else
+     report("user instance: %s, bad factors",instance)
+    end
+   end
+  end
+  if not fontdata.factors then
+   if fontdata.variabledata then
+    local factors=helpers.getfactors(fontdata,true)
+    if factors then
+     specification.factors=factors
+     fontdata.factors=factors
+    end
+   else
+   end
+  end
+ end
+ readtable("os/2",f,fontdata,specification)
+ readtable("head",f,fontdata,specification)
+ readtable("maxp",f,fontdata,specification)
+ readtable("hhea",f,fontdata,specification)
+ readtable("vhea",f,fontdata,specification)
+ readtable("hmtx",f,fontdata,specification)
+ readtable("vmtx",f,fontdata,specification)
+ readtable("vorg",f,fontdata,specification)
+ readtable("post",f,fontdata,specification)
+ readtable("mvar",f,fontdata,specification)
+ readtable("hvar",f,fontdata,specification)
+ readtable("vvar",f,fontdata,specification)
+ readtable("gdef",f,fontdata,specification)
+ readtable("cff",f,fontdata,specification)
+ readtable("cff2",f,fontdata,specification)
+ readtable("cmap",f,fontdata,specification)
+ readtable("loca",f,fontdata,specification) 
+ readtable("glyf",f,fontdata,specification) 
+ readtable("colr",f,fontdata,specification)
+ readtable("cpal",f,fontdata,specification)
+ readtable("svg",f,fontdata,specification)
+ readtable("sbix",f,fontdata,specification)
+ readtable("cbdt",f,fontdata,specification)
+ readtable("cblc",f,fontdata,specification)
+ readtable("ebdt",f,fontdata,specification)
+ readtable("eblc",f,fontdata,specification)
+ readtable("kern",f,fontdata,specification)
+ readtable("gsub",f,fontdata,specification)
+ readtable("gpos",f,fontdata,specification)
+ readtable("math",f,fontdata,specification)
+ fontdata.locations=nil
+ fontdata.cidmaps=nil
+ fontdata.dictionaries=nil
+ if specification.tableoffsets then
+  fontdata.tableoffsets=tables
+  setmetatableindex(tables,{
+   version=fontdata.version,
+   noftables=fontdata.noftables,
+   searchrange=fontdata.searchrange,
+   entryselector=fontdata.entryselector,
+   rangeshift=fontdata.rangeshift,
+  })
+ end
+ return fontdata
+end
+local function loadfontdata(specification)
+ local filename=specification.filename
+ local fileattr=lfs.attributes(filename)
+ local filesize=fileattr and fileattr.size or 0
+ local filetime=fileattr and fileattr.modification or 0
+ local f=openfile(filename,true) 
+ if not f then
+  report("unable to open %a",filename)
+ elseif filesize==0 then
+  report("empty file %a",filename)
+  closefile(f)
+ else
+  specification.filesize=filesize
+  specification.filetime=filetime
+  local version=readstring(f,4)
+  local fontdata=nil
+  if version=="OTTO" or version=="true" or version=="\0\1\0\0" then
+   fontdata=readdata(f,0,specification)
+  elseif version=="ttcf" then
+   local subfont=tonumber(specification.subfont)
+   local ttcversion=readulong(f)
+   local nofsubfonts=readulong(f)
+   local offsets=readcardinaltable(f,nofsubfonts,ulong)
+   if subfont then 
+    if subfont>=1 and subfont<=nofsubfonts then
+     fontdata=readdata(f,offsets[subfont],specification)
+    else
+     report("no subfont %a in file %a",subfont,filename)
+    end
+   else
+    subfont=specification.subfont
+    if type(subfont)=="string" and subfont~="" then
+     specification.askedname=subfont
+     for i=1,nofsubfonts do
+      fontdata=readdata(f,offsets[i],specification)
+      if fontdata then
+       fontdata.subfontindex=i
+       report("subfont named %a has index %a",subfont,i)
+       break
+      end
+     end
+     if not fontdata then
+      report("no subfont named %a",subfont)
+     end
+    else
+     local subfonts={}
+     fontdata={
+      filename=filename,
+      filesize=filesize,
+      filetime=filetime,
+      version=version,
+      subfonts=subfonts,
+      ttcversion=ttcversion,
+      nofsubfonts=nofsubfonts,
+     }
+     for i=1,nofsubfonts do
+      subfonts[i]=readdata(f,offsets[i],specification)
+     end
+    end
+   end
+  else
+   report("unknown version %a in file %a",version,filename)
+  end
+  closefile(f)
+  return fontdata or {}
+ end
+end
+local function loadfont(specification,n,instance)
+ if type(specification)=="string" then
+  specification={
+   filename=specification,
+   info=true,
+   details=true,
+   glyphs=true,
+   shapes=true,
+   kerns=true,
+   variable=true,
+   globalkerns=true,
+   lookups=true,
+   subfont=n or true,
+   tounicode=false,
+   instance=instance
+  }
+ end
+ if specification.shapes or specification.lookups or specification.kerns then
+  specification.glyphs=true
+ end
+ if specification.glyphs then
+  specification.details=true
+ end
+ if specification.details then
+  specification.info=true 
+ end
+ if specification.platformnames then
+  specification.platformnames=true 
+ end
+ if specification.instance or instance then
+  specification.variable=true
+  specification.instance=specification.instance or instance
+ end
+ local function message(str)
+  report("fatal error in file %a: %s\n%s",specification.filename,str,debug and debug.traceback())
+ end
+ local ok,result=xpcall(loadfontdata,message,specification)
+ if ok then
+  return result
+ end
+end
+function readers.loadshapes(filename,n,instance,streams)
+ local fontdata=loadfont {
+  filename=filename,
+  shapes=true,
+  streams=streams,
+  variable=true,
+  subfont=n,
+  instance=instance,
+ }
+ if fontdata then
+  for k,v in next,fontdata.glyphs do
+   v.class=nil
+   v.index=nil
+   v.math=nil
+  end
+  local names=fontdata.names
+  if names then
+   for k,v in next,names do
+    names[k]=fullstrip(v.content)
+   end
+  end
+ end
+ return fontdata and {
+  filename=filename,
+  format=fontdata.format,
+  glyphs=fontdata.glyphs,
+  units=fontdata.fontheader.units,
+  cffinfo=fontdata.cffinfo,
+  fontheader=fontdata.fontheader,
+  horizontalheader=fontdata.horizontalheader,
+  verticalheader=fontdata.verticalheader,
+  maximumprofile=fontdata.maximumprofile,
+  names=fontdata.names,
+  postscript=fontdata.postscript,
+ } or {
+  filename=filename,
+  format="unknown",
+  glyphs={},
+  units=0,
+ }
+end
+function readers.loadfont(filename,n,instance)
+ local fontdata=loadfont {
+  filename=filename,
+  glyphs=true,
+  shapes=false,
+  lookups=true,
+  variable=true,
+  subfont=n,
+  instance=instance,
+ }
+ if fontdata then
+  return {
+   tableversion=tableversion,
+   creator="context mkiv",
+   size=fontdata.filesize,
+   time=fontdata.filetime,
+   glyphs=fontdata.glyphs,
+   descriptions=fontdata.descriptions,
+   format=fontdata.format,
+   goodies={},
+   metadata=getinfo(fontdata,n,false,false,true,true),
+   properties={
+    hasitalics=fontdata.hasitalics or false,
+    maxcolorclass=fontdata.maxcolorclass,
+    hascolor=fontdata.hascolor or false,
+    instance=fontdata.instance,
+    factors=fontdata.factors,
+   },
+   resources={
+    filename=filename,
+    private=privateoffset,
+    duplicates=fontdata.duplicates  or {},
+    features=fontdata.features or {},
+    sublookups=fontdata.sublookups  or {},
+    marks=fontdata.marks    or {},
+    markclasses=fontdata.markclasses or {},
+    marksets=fontdata.marksets or {},
+    sequences=fontdata.sequences   or {},
+    variants=fontdata.variants,
+    version=getname(fontdata,"version"),
+    cidinfo=fontdata.cidinfo,
+    mathconstants=fontdata.mathconstants,
+    colorpalettes=fontdata.colorpalettes,
+    svgshapes=fontdata.svgshapes,
+    pngshapes=fontdata.pngshapes,
+    variabledata=fontdata.variabledata,
+    foundtables=fontdata.foundtables,
+   },
+  }
+ end
+end
+function readers.getinfo(filename,specification)
+ local subfont=nil
+ local platformnames=false
+ local rawfamilynames=false
+ local instancenames=true
+ local tableoffsets=false
+ if type(specification)=="table" then
+  subfont=tonumber(specification.subfont)
+  platformnames=specification.platformnames
+  rawfamilynames=specification.rawfamilynames
+  tableoffsets=specification.tableoffsets
+ else
+  subfont=tonumber(specification)
+ end
+ local fontdata=loadfont {
+  filename=filename,
+  details=true,
+  platformnames=platformnames,
+  instancenames=true,
+  tableoffsets=tableoffsets,
+ }
+ if fontdata then
+  local subfonts=fontdata.subfonts
+  if not subfonts then
+   return getinfo(fontdata,nil,platformnames,rawfamilynames,false,instancenames)
+  elseif not subfont then
+   local info={}
+   for i=1,#subfonts do
+    info[i]=getinfo(fontdata,i,platformnames,rawfamilynames,false,instancenames)
+   end
+   return info
+  elseif subfont>=1 and subfont<=#subfonts then
+   return getinfo(fontdata,subfont,platformnames,rawfamilynames,false,instancenames)
+  else
+   return {
+    filename=filename,
+    comment="there is no subfont "..subfont.." in this file"
+   }
+  end
+ else
+  return {
+   filename=filename,
+   comment="the file cannot be opened for reading",
+  }
+ end
+end
+function readers.rehash(fontdata,hashmethod)
+ report("the %a helper is not yet implemented","rehash")
+end
+function readers.checkhash(fontdata)
+ report("the %a helper is not yet implemented","checkhash")
+end
+function readers.pack(fontdata,hashmethod)
+ report("the %a helper is not yet implemented","pack")
+end
+function readers.unpack(fontdata)
+ report("the %a helper is not yet implemented","unpack")
+end
+function readers.expand(fontdata)
+ report("the %a helper is not yet implemented","unpack")
+end
+function readers.compact(fontdata)
+ report("the %a helper is not yet implemented","compact")
+end
+local extenders={}
+function readers.registerextender(extender)
+ extenders[#extenders+1]=extender
+end
+function readers.extend(fontdata)
+ for i=1,#extenders do
+  local extender=extenders[i]
+  local name=extender.name or "unknown"
+  local action=extender.action
+  if action then
+   action(fontdata)
+  end
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-oti']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local lower=string.lower
+local fonts=fonts
+local constructors=fonts.constructors
+local otf=constructors.handlers.otf
+local otffeatures=constructors.features.otf
+local registerotffeature=otffeatures.register
+local otftables=otf.tables or {}
+otf.tables=otftables
+local allocate=utilities.storage.allocate
+registerotffeature {
+ name="features",
+ description="initialization of feature handler",
+ default=true,
+}
+local function setmode(tfmdata,value)
+ if value then
+  tfmdata.properties.mode=lower(value)
+ end
+end
+otf.modeinitializer=setmode
+local function setlanguage(tfmdata,value)
+ if value then
+  local cleanvalue=lower(value)
+  local languages=otftables and otftables.languages
+  local properties=tfmdata.properties
+  if not languages then
+   properties.language=cleanvalue
+  elseif languages[value] then
+   properties.language=cleanvalue
+  else
+   properties.language="dflt"
+  end
+ end
+end
+local function setscript(tfmdata,value)
+ if value then
+  local cleanvalue=lower(value)
+  local scripts=otftables and otftables.scripts
+  local properties=tfmdata.properties
+  if not scripts then
+   properties.script=cleanvalue
+  elseif scripts[value] then
+   properties.script=cleanvalue
+  else
+   properties.script="dflt"
+  end
+ end
+end
+registerotffeature {
+ name="mode",
+ description="mode",
+ initializers={
+  base=setmode,
+  node=setmode,
+  plug=setmode,
+ }
+}
+registerotffeature {
+ name="language",
+ description="language",
+ initializers={
+  base=setlanguage,
+  node=setlanguage,
+  plug=setlanguage,
+ }
+}
+registerotffeature {
+ name="script",
+ description="script",
+ initializers={
+  base=setscript,
+  node=setscript,
+  plug=setscript,
+ }
+}
+otftables.featuretypes=allocate {
+ gpos_single="position",
+ gpos_pair="position",
+ gpos_cursive="position",
+ gpos_mark2base="position",
+ gpos_mark2ligature="position",
+ gpos_mark2mark="position",
+ gpos_context="position",
+ gpos_contextchain="position",
+ gsub_single="substitution",
+ gsub_multiple="substitution",
+ gsub_alternate="substitution",
+ gsub_ligature="substitution",
+ gsub_context="substitution",
+ gsub_contextchain="substitution",
+ gsub_reversecontextchain="substitution",
+ gsub_reversesub="substitution",
+}
+function otffeatures.checkeddefaultscript(featuretype,autoscript,scripts)
+ if featuretype=="position" then
+  local default=scripts.dflt
+  if default then
+   if autoscript=="position" or autoscript==true then
+    return default
+   else
+    report_otf("script feature %s not applied, enable default positioning")
+   end
+  else
+  end
+ elseif featuretype=="substitution" then
+  local default=scripts.dflt
+  if default then
+   if autoscript=="substitution" or autoscript==true then
+    return default
+   end
+  end
+ end
+end
+function otffeatures.checkeddefaultlanguage(featuretype,autolanguage,languages)
+ if featuretype=="position" then
+  local default=languages.dflt
+  if default then
+   if autolanguage=="position" or autolanguage==true then
+    return default
+   else
+    report_otf("language feature %s not applied, enable default positioning")
+   end
+  else
+  end
+ elseif featuretype=="substitution" then
+  local default=languages.dflt
+  if default then
+   if autolanguage=="substitution" or autolanguage==true then
+    return default
+   end
+  end
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ["font-ott"]={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files",
+}
+local type,next,tonumber,tostring,rawget,rawset=type,next,tonumber,tostring,rawget,rawset
+local gsub,lower,format,match,gmatch,find=string.gsub,string.lower,string.format,string.match,string.gmatch,string.find
+local sequenced=table.sequenced
+local is_boolean=string.is_boolean
+local setmetatableindex=table.setmetatableindex
+local setmetatablenewindex=table.setmetatablenewindex
+local allocate=utilities.storage.allocate
+local fonts=fonts
+local otf=fonts.handlers.otf
+local otffeatures=otf.features
+local tables=otf.tables or {}
+otf.tables=tables
+local statistics=otf.statistics or {}
+otf.statistics=statistics
+local scripts=allocate {
+ ["adlm"]="adlam",
+ ["aghb"]="caucasian albanian",
+ ["ahom"]="ahom",
+ ["arab"]="arabic",
+ ["armi"]="imperial aramaic",
+ ["armn"]="armenian",
+ ["avst"]="avestan",
+ ["bali"]="balinese",
+ ["bamu"]="bamum",
+ ["bass"]="bassa vah",
+ ["batk"]="batak",
+ ["beng"]="bengali",
+ ["bhks"]="bhaiksuki",
+ ["bng2"]="bengali variant 2",
+ ["bopo"]="bopomofo",
+ ["brah"]="brahmi",
+ ["brai"]="braille",
+ ["bugi"]="buginese",
+ ["buhd"]="buhid",
+ ["byzm"]="byzantine music",
+ ["cakm"]="chakma",
+ ["cans"]="canadian syllabics",
+ ["cari"]="carian",
+ ["cham"]="cham",
+ ["cher"]="cherokee",
+ ["copt"]="coptic",
+ ["cprt"]="cypriot syllabary",
+ ["cyrl"]="cyrillic",
+ ["dev2"]="devanagari variant 2",
+ ["deva"]="devanagari",
+ ["dogr"]="dogra",
+ ["dsrt"]="deseret",
+ ["dupl"]="duployan",
+ ["egyp"]="egyptian heiroglyphs",
+ ["elba"]="elbasan",
+ ["ethi"]="ethiopic",
+ ["geor"]="georgian",
+ ["gjr2"]="gujarati variant 2",
+ ["glag"]="glagolitic",
+ ["gong"]="gunjala gondi",
+ ["gonm"]="masaram gondi",
+ ["goth"]="gothic",
+ ["gran"]="grantha",
+ ["grek"]="greek",
+ ["gujr"]="gujarati",
+ ["gur2"]="gurmukhi variant 2",
+ ["guru"]="gurmukhi",
+ ["hang"]="hangul",
+ ["hani"]="cjk ideographic",
+ ["hano"]="hanunoo",
+ ["hatr"]="hatran",
+ ["hebr"]="hebrew",
+ ["hluw"]="anatolian hieroglyphs",
+ ["hmng"]="pahawh hmong",
+ ["hung"]="old hungarian",
+ ["ital"]="old italic",
+ ["jamo"]="hangul jamo",
+ ["java"]="javanese",
+ ["kali"]="kayah li",
+ ["kana"]="hiragana and katakana",
+ ["khar"]="kharosthi",
+ ["khmr"]="khmer",
+ ["khoj"]="khojki",
+ ["knd2"]="kannada variant 2",
+ ["knda"]="kannada",
+ ["kthi"]="kaithi",
+ ["lana"]="tai tham",
+ ["lao" ]="lao",
+ ["latn"]="latin",
+ ["lepc"]="lepcha",
+ ["limb"]="limbu",
+ ["lina"]="linear a",
+ ["linb"]="linear b",
+ ["lisu"]="lisu",
+ ["lyci"]="lycian",
+ ["lydi"]="lydian",
+ ["mahj"]="mahajani",
+ ["maka"]="makasar",
+ ["mand"]="mandaic and mandaean",
+ ["mani"]="manichaean",
+ ["marc"]="marchen",
+ ["math"]="mathematical alphanumeric symbols",
+ ["medf"]="medefaidrin",
+ ["mend"]="mende kikakui",
+ ["merc"]="meroitic cursive",
+ ["mero"]="meroitic hieroglyphs",
+ ["mlm2"]="malayalam variant 2",
+ ["mlym"]="malayalam",
+ ["modi"]="modi",
+ ["mong"]="mongolian",
+ ["mroo"]="mro",
+ ["mtei"]="meitei Mayek",
+ ["mult"]="multani",
+ ["musc"]="musical symbols",
+ ["mym2"]="myanmar variant 2",
+ ["mymr"]="myanmar",
+ ["narb"]="old north arabian",
+ ["nbat"]="nabataean",
+ ["newa"]="newa",
+ ["nko" ]='n"ko',
+ ["nshu"]="nüshu",
+ ["ogam"]="ogham",
+ ["olck"]="ol chiki",
+ ["orkh"]="old turkic and orkhon runic",
+ ["ory2"]="odia variant 2",
+ ["orya"]="oriya",
+ ["osge"]="osage",
+ ["osma"]="osmanya",
+ ["palm"]="palmyrene",
+ ["pauc"]="pau cin hau",
+ ["perm"]="old permic",
+ ["phag"]="phags-pa",
+ ["phli"]="inscriptional pahlavi",
+ ["phlp"]="psalter pahlavi",
+ ["phnx"]="phoenician",
+ ["plrd"]="miao",
+ ["prti"]="inscriptional parthian",
+ ["rjng"]="rejang",
+ ["rohg"]="hanifi rohingya",
+ ["runr"]="runic",
+ ["samr"]="samaritan",
+ ["sarb"]="old south arabian",
+ ["saur"]="saurashtra",
+ ["sgnw"]="sign writing",
+ ["shaw"]="shavian",
+ ["shrd"]="sharada",
+ ["sidd"]="siddham",
+ ["sind"]="khudawadi",
+ ["sinh"]="sinhala",
+ ["sogd"]="sogdian",
+ ["sogo"]="old sogdian",
+ ["sora"]="sora sompeng",
+ ["soyo"]="soyombo",
+ ["sund"]="sundanese",
+ ["sylo"]="syloti nagri",
+ ["syrc"]="syriac",
+ ["tagb"]="tagbanwa",
+ ["takr"]="takri",
+ ["tale"]="tai le",
+ ["talu"]="tai lu",
+ ["taml"]="tamil",
+ ["tang"]="tangut",
+ ["tavt"]="tai viet",
+ ["tel2"]="telugu variant 2",
+ ["telu"]="telugu",
+ ["tfng"]="tifinagh",
+ ["tglg"]="tagalog",
+ ["thaa"]="thaana",
+ ["thai"]="thai",
+ ["tibt"]="tibetan",
+ ["tirh"]="tirhuta",
+ ["tml2"]="tamil variant 2",
+ ["ugar"]="ugaritic cuneiform",
+ ["vai" ]="vai",
+ ["wara"]="warang citi",
+ ["xpeo"]="old persian cuneiform",
+ ["xsux"]="sumero-akkadian cuneiform",
+ ["yi"  ]="yi",
+ ["zanb"]="zanabazar square",
+}
+local languages=allocate {
+ ["aba" ]="abaza",
+ ["abk" ]="abkhazian",
+ ["ach" ]="acholi",
+ ["acr" ]="achi",
+ ["ady" ]="adyghe",
+ ["afk" ]="afrikaans",
+ ["afr" ]="afar",
+ ["agw" ]="agaw",
+ ["aio" ]="aiton",
+ ["aka" ]="akan",
+ ["als" ]="alsatian",
+ ["alt" ]="altai",
+ ["amh" ]="amharic",
+ ["ang" ]="anglo-saxon",
+ ["apph"]="phonetic transcription—americanist conventions",
+ ["ara" ]="arabic",
+ ["arg" ]="aragonese",
+ ["ari" ]="aari",
+ ["ark" ]="rakhine",
+ ["asm" ]="assamese",
+ ["ast" ]="asturian",
+ ["ath" ]="athapaskan",
+ ["avr" ]="avar",
+ ["awa" ]="awadhi",
+ ["aym" ]="aymara",
+ ["azb" ]="torki",
+ ["aze" ]="azerbaijani",
+ ["bad" ]="badaga",
+ ["bad0"]="banda",
+ ["bag" ]="baghelkhandi",
+ ["bal" ]="balkar",
+ ["ban" ]="balinese",
+ ["bar" ]="bavarian",
+ ["bau" ]="baulé",
+ ["bbc" ]="batak toba",
+ ["bbr" ]="berber",
+ ["bch" ]="bench",
+ ["bcr" ]="bible cree",
+ ["bdy" ]="bandjalang",
+ ["bel" ]="belarussian",
+ ["bem" ]="bemba",
+ ["ben" ]="bengali",
+ ["bgc" ]="haryanvi",
+ ["bgq" ]="bagri",
+ ["bgr" ]="bulgarian",
+ ["bhi" ]="bhili",
+ ["bho" ]="bhojpuri",
+ ["bik" ]="bikol",
+ ["bil" ]="bilen",
+ ["bis" ]="bislama",
+ ["bjj" ]="kanauji",
+ ["bkf" ]="blackfoot",
+ ["bli" ]="baluchi",
+ ["blk" ]="pa'o karen",
+ ["bln" ]="balante",
+ ["blt" ]="balti",
+ ["bmb" ]="bambara (bamanankan)",
+ ["bml" ]="bamileke",
+ ["bos" ]="bosnian",
+ ["bpy" ]="bishnupriya manipuri",
+ ["bre" ]="breton",
+ ["brh" ]="brahui",
+ ["bri" ]="braj bhasha",
+ ["brm" ]="burmese",
+ ["brx" ]="bodo",
+ ["bsh" ]="bashkir",
+ ["bsk" ]="burushaski",
+ ["bti" ]="beti",
+ ["bts" ]="batak simalungun",
+ ["bug" ]="bugis",
+ ["byv" ]="medumba",
+ ["cak" ]="kaqchikel",
+ ["cat" ]="catalan",
+ ["cbk" ]="zamboanga chavacano",
+ ["cchn"]="chinantec",
+ ["ceb" ]="cebuano",
+ ["cgg" ]="chiga",
+ ["cha" ]="chamorro",
+ ["che" ]="chechen",
+ ["chg" ]="chaha gurage",
+ ["chh" ]="chattisgarhi",
+ ["chi" ]="chichewa (chewa, nyanja)",
+ ["chk" ]="chukchi",
+ ["chk0"]="chuukese",
+ ["cho" ]="choctaw",
+ ["chp" ]="chipewyan",
+ ["chr" ]="cherokee",
+ ["chu" ]="chuvash",
+ ["chy" ]="cheyenne",
+ ["cja" ]="western cham",
+ ["cjm" ]="eastern cham",
+ ["cmr" ]="comorian",
+ ["cop" ]="coptic",
+ ["cor" ]="cornish",
+ ["cos" ]="corsican",
+ ["cpp" ]="creoles",
+ ["cre" ]="cree",
+ ["crr" ]="carrier",
+ ["crt" ]="crimean tatar",
+ ["csb" ]="kashubian",
+ ["csl" ]="church slavonic",
+ ["csy" ]="czech",
+ ["ctg" ]="chittagonian",
+ ["cuk" ]="san blas kuna",
+ ["dan" ]="danish",
+ ["dar" ]="dargwa",
+ ["dax" ]="dayi",
+ ["dcr" ]="woods cree",
+ ["deu" ]="german",
+ ["dgo" ]="dogri",
+ ["dgr" ]="dogri",
+ ["dhg" ]="dhangu",
+ ["dhv" ]="divehi (dhivehi, maldivian)",
+ ["diq" ]="dimli",
+ ["div" ]="divehi (dhivehi, maldivian)",
+ ["djr" ]="zarma",
+ ["djr0"]="djambarrpuyngu",
+ ["dng" ]="dangme",
+ ["dnj" ]="dan",
+ ["dnk" ]="dinka",
+ ["dri" ]="dari",
+ ["duj" ]="dhuwal",
+ ["dun" ]="dungan",
+ ["dzn" ]="dzongkha",
+ ["ebi" ]="ebira",
+ ["ecr" ]="eastern cree",
+ ["edo" ]="edo",
+ ["efi" ]="efik",
+ ["ell" ]="greek",
+ ["emk" ]="eastern maninkakan",
+ ["eng" ]="english",
+ ["erz" ]="erzya",
+ ["esp" ]="spanish",
+ ["esu" ]="central yupik",
+ ["eti" ]="estonian",
+ ["euq" ]="basque",
+ ["evk" ]="evenki",
+ ["evn" ]="even",
+ ["ewe" ]="ewe",
+ ["fan" ]="french antillean",
+ ["fan0"]=" fang",
+ ["far" ]="persian",
+ ["fat" ]="fanti",
+ ["fin" ]="finnish",
+ ["fji" ]="fijian",
+ ["fle" ]="dutch (flemish)",
+ ["fmp" ]="fe’fe’",
+ ["fne" ]="forest nenets",
+ ["fon" ]="fon",
+ ["fos" ]="faroese",
+ ["fra" ]="french",
+ ["frc" ]="cajun french",
+ ["fri" ]="frisian",
+ ["frl" ]="friulian",
+ ["frp" ]="arpitan",
+ ["fta" ]="futa",
+ ["ful" ]="fulah",
+ ["fuv" ]="nigerian fulfulde",
+ ["gad" ]="ga",
+ ["gae" ]="scottish gaelic (gaelic)",
+ ["gag" ]="gagauz",
+ ["gal" ]="galician",
+ ["gar" ]="garshuni",
+ ["gaw" ]="garhwali",
+ ["gez" ]="ge'ez",
+ ["gih" ]="githabul",
+ ["gil" ]="gilyak",
+ ["gil0"]="kiribati (gilbertese)",
+ ["gkp" ]="kpelle (guinea)",
+ ["glk" ]="gilaki",
+ ["gmz" ]="gumuz",
+ ["gnn" ]="gumatj",
+ ["gog" ]="gogo",
+ ["gon" ]="gondi",
+ ["grn" ]="greenlandic",
+ ["gro" ]="garo",
+ ["gua" ]="guarani",
+ ["guc" ]="wayuu",
+ ["guf" ]="gupapuyngu",
+ ["guj" ]="gujarati",
+ ["guz" ]="gusii",
+ ["hai" ]="haitian (haitian creole)",
+ ["hal" ]="halam",
+ ["har" ]="harauti",
+ ["hau" ]="hausa",
+ ["haw" ]="hawaiian",
+ ["hay" ]="haya",
+ ["haz" ]="hazaragi",
+ ["hbn" ]="hammer-banna",
+ ["her" ]="herero",
+ ["hil" ]="hiligaynon",
+ ["hin" ]="hindi",
+ ["hma" ]="high mari",
+ ["hmn" ]="hmong",
+ ["hmo" ]="hiri motu",
+ ["hnd" ]="hindko",
+ ["ho"  ]="ho",
+ ["hri" ]="harari",
+ ["hrv" ]="croatian",
+ ["hun" ]="hungarian",
+ ["hye" ]="armenian",
+ ["hye0"]="armenian east",
+ ["iba" ]="iban",
+ ["ibb" ]="ibibio",
+ ["ibo" ]="igbo",
+ ["ido" ]="ido",
+ ["ijo" ]="ijo languages",
+ ["ile" ]="interlingue",
+ ["ilo" ]="ilokano",
+ ["ina" ]="interlingua",
+ ["ind" ]="indonesian",
+ ["ing" ]="ingush",
+ ["inu" ]="inuktitut",
+ ["ipk" ]="inupiat",
+ ["ipph"]="phonetic transcription—ipa conventions",
+ ["iri" ]="irish",
+ ["irt" ]="irish traditional",
+ ["isl" ]="icelandic",
+ ["ism" ]="inari sami",
+ ["ita" ]="italian",
+ ["iwr" ]="hebrew",
+ ["jam" ]="jamaican creole",
+ ["jan" ]="japanese",
+ ["jav" ]="javanese",
+ ["jbo" ]="lojban",
+ ["jct" ]="krymchak",
+ ["jii" ]="yiddish",
+ ["jud" ]="ladino",
+ ["jul" ]="jula",
+ ["kab" ]="kabardian",
+ ["kab0"]="kabyle",
+ ["kac" ]="kachchi",
+ ["kal" ]="kalenjin",
+ ["kan" ]="kannada",
+ ["kar" ]="karachay",
+ ["kat" ]="georgian",
+ ["kaz" ]="kazakh",
+ ["kde" ]="makonde",
+ ["kea" ]="kabuverdianu (crioulo)",
+ ["keb" ]="kebena",
+ ["kek" ]="kekchi",
+ ["kge" ]="khutsuri georgian",
+ ["kha" ]="khakass",
+ ["khk" ]="khanty-kazim",
+ ["khm" ]="khmer",
+ ["khs" ]="khanty-shurishkar",
+ ["kht" ]="khamti shan",
+ ["khv" ]="khanty-vakhi",
+ ["khw" ]="khowar",
+ ["kik" ]="kikuyu (gikuyu)",
+ ["kir" ]="kirghiz (kyrgyz)",
+ ["kis" ]="kisii",
+ ["kiu" ]="kirmanjki",
+ ["kjd" ]="southern kiwai",
+ ["kjp" ]="eastern pwo karen",
+ ["kjz" ]="bumthangkha",
+ ["kkn" ]="kokni",
+ ["klm" ]="kalmyk",
+ ["kmb" ]="kamba",
+ ["kmn" ]="kumaoni",
+ ["kmo" ]="komo",
+ ["kms" ]="komso",
+ ["kmz" ]="khorasani turkic",
+ ["knr" ]="kanuri",
+ ["kod" ]="kodagu",
+ ["koh" ]="korean old hangul",
+ ["kok" ]="konkani",
+ ["kom" ]="komi",
+ ["kon" ]="kikongo",
+ ["kon0"]="kongo",
+ ["kop" ]="komi-permyak",
+ ["kor" ]="korean",
+ ["kos" ]="kosraean",
+ ["koz" ]="komi-zyrian",
+ ["kpl" ]="kpelle",
+ ["kri" ]="krio",
+ ["krk" ]="karakalpak",
+ ["krl" ]="karelian",
+ ["krm" ]="karaim",
+ ["krn" ]="karen",
+ ["krt" ]="koorete",
+ ["ksh" ]="kashmiri",
+ ["ksh0"]="ripuarian",
+ ["ksi" ]="khasi",
+ ["ksm" ]="kildin sami",
+ ["ksw" ]="s’gaw karen",
+ ["kua" ]="kuanyama",
+ ["kui" ]="kui",
+ ["kul" ]="kulvi",
+ ["kum" ]="kumyk",
+ ["kur" ]="kurdish",
+ ["kuu" ]="kurukh",
+ ["kuy" ]="kuy",
+ ["kyk" ]="koryak",
+ ["kyu" ]="western kayah",
+ ["lad" ]="ladin",
+ ["lah" ]="lahuli",
+ ["lak" ]="lak",
+ ["lam" ]="lambani",
+ ["lao" ]="lao",
+ ["lat" ]="latin",
+ ["laz" ]="laz",
+ ["lcr" ]="l-cree",
+ ["ldk" ]="ladakhi",
+ ["lez" ]="lezgi",
+ ["lij" ]="ligurian",
+ ["lim" ]="limburgish",
+ ["lin" ]="lingala",
+ ["lis" ]="lisu",
+ ["ljp" ]="lampung",
+ ["lki" ]="laki",
+ ["lma" ]="low mari",
+ ["lmb" ]="limbu",
+ ["lmo" ]="lombard",
+ ["lmw" ]="lomwe",
+ ["lom" ]="loma",
+ ["lrc" ]="luri",
+ ["lsb" ]="lower sorbian",
+ ["lsm" ]="lule sami",
+ ["lth" ]="lithuanian",
+ ["ltz" ]="luxembourgish",
+ ["lua" ]="luba-lulua",
+ ["lub" ]="luba-katanga",
+ ["lug" ]="ganda",
+ ["luh" ]="luyia",
+ ["luo" ]="luo",
+ ["lvi" ]="latvian",
+ ["mad" ]="madura",
+ ["mag" ]="magahi",
+ ["mah" ]="marshallese",
+ ["maj" ]="majang",
+ ["mak" ]="makhuwa",
+ ["mal" ]="malayalam reformed",
+ ["mam" ]="mam",
+ ["man" ]="mansi",
+ ["map" ]="mapudungun",
+ ["mar" ]="marathi",
+ ["maw" ]="marwari",
+ ["mbn" ]="mbundu",
+ ["mbo" ]="mbo",
+ ["mch" ]="manchu",
+ ["mcr" ]="moose cree",
+ ["mde" ]="mende",
+ ["mdr" ]="mandar",
+ ["men" ]="me'en",
+ ["mer" ]="meru",
+ ["mfa" ]="pattani malay",
+ ["mfe" ]="morisyen",
+ ["min" ]="minangkabau",
+ ["miz" ]="mizo",
+ ["mkd" ]="macedonian",
+ ["mkr" ]="makasar",
+ ["mkw" ]="kituba",
+ ["mle" ]="male",
+ ["mlg" ]="malagasy",
+ ["mln" ]="malinke",
+ ["mlr" ]="malayalam reformed",
+ ["mly" ]="malay",
+ ["mnd" ]="mandinka",
+ ["mng" ]="mongolian",
+ ["mni" ]="manipuri",
+ ["mnk" ]="maninka",
+ ["mnx" ]="manx",
+ ["moh" ]="mohawk",
+ ["mok" ]="moksha",
+ ["mol" ]="moldavian",
+ ["mon" ]="mon",
+ ["mor" ]="moroccan",
+ ["mos" ]="mossi",
+ ["mri" ]="maori",
+ ["mth" ]="maithili",
+ ["mts" ]="maltese",
+ ["mun" ]="mundari",
+ ["mus" ]="muscogee",
+ ["mwl" ]="mirandese",
+ ["mww" ]="hmong daw",
+ ["myn" ]="mayan",
+ ["mzn" ]="mazanderani",
+ ["nag" ]="naga-assamese",
+ ["nah" ]="nahuatl",
+ ["nan" ]="nanai",
+ ["nap" ]="neapolitan",
+ ["nas" ]="naskapi",
+ ["nau" ]="nauruan",
+ ["nav" ]="navajo",
+ ["ncr" ]="n-cree",
+ ["ndb" ]="ndebele",
+ ["ndc" ]="ndau",
+ ["ndg" ]="ndonga",
+ ["nds" ]="low saxon",
+ ["nep" ]="nepali",
+ ["new" ]="newari",
+ ["nga" ]="ngbaka",
+ ["ngr" ]="nagari",
+ ["nhc" ]="norway house cree",
+ ["nis" ]="nisi",
+ ["niu" ]="niuean",
+ ["nkl" ]="nyankole",
+ ["nko" ]="n'ko",
+ ["nld" ]="dutch",
+ ["noe" ]="nimadi",
+ ["nog" ]="nogai",
+ ["nor" ]="norwegian",
+ ["nov" ]="novial",
+ ["nsm" ]="northern sami",
+ ["nso" ]="sotho, northern",
+ ["nta" ]="northern tai",
+ ["nto" ]="esperanto",
+ ["nym" ]="nyamwezi",
+ ["nyn" ]="norwegian nynorsk",
+ ["nza" ]="mbembe tigon",
+ ["oci" ]="occitan",
+ ["ocr" ]="oji-cree",
+ ["ojb" ]="ojibway",
+ ["ori" ]="odia",
+ ["oro" ]="oromo",
+ ["oss" ]="ossetian",
+ ["paa" ]="palestinian aramaic",
+ ["pag" ]="pangasinan",
+ ["pal" ]="pali",
+ ["pam" ]="pampangan",
+ ["pan" ]="punjabi",
+ ["pap" ]="palpa",
+ ["pap0"]="papiamentu",
+ ["pas" ]="pashto",
+ ["pau" ]="palauan",
+ ["pcc" ]="bouyei",
+ ["pcd" ]="picard",
+ ["pdc" ]="pennsylvania german",
+ ["pgr" ]="polytonic greek",
+ ["phk" ]="phake",
+ ["pih" ]="norfolk",
+ ["pil" ]="filipino",
+ ["plg" ]="palaung",
+ ["plk" ]="polish",
+ ["pms" ]="piemontese",
+ ["pnb" ]="western panjabi",
+ ["poh" ]="pocomchi",
+ ["pon" ]="pohnpeian",
+ ["pro" ]="provencal",
+ ["ptg" ]="portuguese",
+ ["pwo" ]="western pwo karen",
+ ["qin" ]="chin",
+ ["quc" ]="k’iche’",
+ ["quh" ]="quechua (bolivia)",
+ ["quz" ]="quechua",
+ ["qvi" ]="quechua (ecuador)",
+ ["qwh" ]="quechua (peru)",
+ ["raj" ]="rajasthani",
+ ["rar" ]="rarotongan",
+ ["rbu" ]="russian buriat",
+ ["rcr" ]="r-cree",
+ ["rej" ]="rejang",
+ ["ria" ]="riang",
+ ["rif" ]="tarifit",
+ ["rit" ]="ritarungo",
+ ["rkw" ]="arakwal",
+ ["rms" ]="romansh",
+ ["rmy" ]="vlax romani",
+ ["rom" ]="romanian",
+ ["roy" ]="romany",
+ ["rsy" ]="rusyn",
+ ["rtm" ]="rotuman",
+ ["rua" ]="kinyarwanda",
+ ["run" ]="rundi",
+ ["rup" ]="aromanian",
+ ["rus" ]="russian",
+ ["sad" ]="sadri",
+ ["san" ]="sanskrit",
+ ["sas" ]="sasak",
+ ["sat" ]="santali",
+ ["say" ]="sayisi",
+ ["scn" ]="sicilian",
+ ["sco" ]="scots",
+ ["scs" ]="north slavey",
+ ["sek" ]="sekota",
+ ["sel" ]="selkup",
+ ["sga" ]="old irish",
+ ["sgo" ]="sango",
+ ["sgs" ]="samogitian",
+ ["shi" ]="tachelhit",
+ ["shn" ]="shan",
+ ["sib" ]="sibe",
+ ["sid" ]="sidamo",
+ ["sig" ]="silte gurage",
+ ["sks" ]="skolt sami",
+ ["sky" ]="slovak",
+ ["sla" ]="slavey",
+ ["slv" ]="slovenian",
+ ["sml" ]="somali",
+ ["smo" ]="samoan",
+ ["sna" ]="sena",
+ ["sna0"]="shona",
+ ["snd" ]="sindhi",
+ ["snh" ]="sinhala (sinhalese)",
+ ["snk" ]="soninke",
+ ["sog" ]="sodo gurage",
+ ["sop" ]="songe",
+ ["sot" ]="sotho, southern",
+ ["sqi" ]="albanian",
+ ["srb" ]="serbian",
+ ["srd" ]="sardinian",
+ ["srk" ]="saraiki",
+ ["srr" ]="serer",
+ ["ssl" ]="south slavey",
+ ["ssm" ]="southern sami",
+ ["stq" ]="saterland frisian",
+ ["suk" ]="sukuma",
+ ["sun" ]="sundanese",
+ ["sur" ]="suri",
+ ["sva" ]="svan",
+ ["sve" ]="swedish",
+ ["swa" ]="swadaya aramaic",
+ ["swk" ]="swahili",
+ ["swz" ]="swati",
+ ["sxt" ]="sutu",
+ ["sxu" ]="upper saxon",
+ ["syl" ]="sylheti",
+ ["syr" ]="syriac",
+ ["syre"]="estrangela syriac",
+ ["syrj"]="western syriac",
+ ["syrn"]="eastern syriac",
+ ["szl" ]="silesian",
+ ["tab" ]="tabasaran",
+ ["taj" ]="tajiki",
+ ["tam" ]="tamil",
+ ["tat" ]="tatar",
+ ["tcr" ]="th-cree",
+ ["tdd" ]="dehong dai",
+ ["tel" ]="telugu",
+ ["tet" ]="tetum",
+ ["tgl" ]="tagalog",
+ ["tgn" ]="tongan",
+ ["tgr" ]="tigre",
+ ["tgy" ]="tigrinya",
+ ["tha" ]="thai",
+ ["tht" ]="tahitian",
+ ["tib" ]="tibetan",
+ ["tiv" ]="tiv",
+ ["tkm" ]="turkmen",
+ ["tmh" ]="tamashek",
+ ["tmn" ]="temne",
+ ["tna" ]="tswana",
+ ["tne" ]="tundra nenets",
+ ["tng" ]="tonga",
+ ["tod" ]="todo",
+ ["tod0"]="toma",
+ ["tpi" ]="tok pisin",
+ ["trk" ]="turkish",
+ ["tsg" ]="tsonga",
+ ["tsj" ]="tshangla",
+ ["tua" ]="turoyo aramaic",
+ ["tul" ]="tulu",
+ ["tum" ]="tulu",
+ ["tuv" ]="tuvin",
+ ["tvl" ]="tuvalu",
+ ["twi" ]="twi",
+ ["tyz" ]="tày",
+ ["tzm" ]="tamazight",
+ ["tzo" ]="tzotzil",
+ ["udm" ]="udmurt",
+ ["ukr" ]="ukrainian",
+ ["umb" ]="umbundu",
+ ["urd" ]="urdu",
+ ["usb" ]="upper sorbian",
+ ["uyg" ]="uyghur",
+ ["uzb" ]="uzbek",
+ ["vec" ]="venetian",
+ ["ven" ]="venda",
+ ["vit" ]="vietnamese",
+ ["vol" ]="volapük",
+ ["vro" ]="võro",
+ ["wa"  ]="wa",
+ ["wag" ]="wagdi",
+ ["war" ]="waray-waray",
+ ["wcr" ]="west-cree",
+ ["wel" ]="welsh",
+ ["wlf" ]="wolof",
+ ["wln" ]="walloon",
+ ["wtm" ]="mewati",
+ ["xbd" ]="lü",
+ ["xhs" ]="xhosa",
+ ["xjb" ]="minjangbal",
+ ["xkf" ]="khengkha",
+ ["xog" ]="soga",
+ ["xpe" ]="kpelle (liberia)",
+ ["yak" ]="sakha",
+ ["yao" ]="yao",
+ ["yap" ]="yapese",
+ ["yba" ]="yoruba",
+ ["ycr" ]="y-cree",
+ ["yic" ]="yi classic",
+ ["yim" ]="yi modern",
+ ["zea" ]="zealandic",
+ ["zgh" ]="standard morrocan tamazigh",
+ ["zha" ]="zhuang",
+ ["zhh" ]="chinese, hong kong sar",
+ ["zhp" ]="chinese phonetic",
+ ["zhs" ]="chinese simplified",
+ ["zht" ]="chinese traditional",
+ ["znd" ]="zande",
+ ["zul" ]="zulu",
+ ["zza" ]="zazaki",
+}
+local features=allocate {
+ ["aalt"]="access all alternates",
+ ["abvf"]="above-base forms",
+ ["abvm"]="above-base mark positioning",
+ ["abvs"]="above-base substitutions",
+ ["afrc"]="alternative fractions",
+ ["akhn"]="akhands",
+ ["blwf"]="below-base forms",
+ ["blwm"]="below-base mark positioning",
+ ["blws"]="below-base substitutions",
+ ["c2pc"]="petite capitals from capitals",
+ ["c2sc"]="small capitals from capitals",
+ ["calt"]="contextual alternates",
+ ["case"]="case-sensitive forms",
+ ["ccmp"]="glyph composition/decomposition",
+ ["cfar"]="conjunct form after ro",
+ ["cjct"]="conjunct forms",
+ ["clig"]="contextual ligatures",
+ ["cpct"]="centered cjk punctuation",
+ ["cpsp"]="capital spacing",
+ ["cswh"]="contextual swash",
+ ["curs"]="cursive positioning",
+ ["dflt"]="default processing",
+ ["dist"]="distances",
+ ["dlig"]="discretionary ligatures",
+ ["dnom"]="denominators",
+ ["dtls"]="dotless forms",
+ ["expt"]="expert forms",
+ ["falt"]="final glyph alternates",
+ ["fin2"]="terminal forms #2",
+ ["fin3"]="terminal forms #3",
+ ["fina"]="terminal forms",
+ ["flac"]="flattened accents over capitals",
+ ["frac"]="fractions",
+ ["fwid"]="full width",
+ ["half"]="half forms",
+ ["haln"]="halant forms",
+ ["halt"]="alternate half width",
+ ["hist"]="historical forms",
+ ["hkna"]="horizontal kana alternates",
+ ["hlig"]="historical ligatures",
+ ["hngl"]="hangul",
+ ["hojo"]="hojo kanji forms",
+ ["hwid"]="half width",
+ ["init"]="initial forms",
+ ["isol"]="isolated forms",
+ ["ital"]="italics",
+ ["jalt"]="justification alternatives",
+ ["jp04"]="jis2004 forms",
+ ["jp78"]="jis78 forms",
+ ["jp83"]="jis83 forms",
+ ["jp90"]="jis90 forms",
+ ["kern"]="kerning",
+ ["lfbd"]="left bounds",
+ ["liga"]="standard ligatures",
+ ["ljmo"]="leading jamo forms",
+ ["lnum"]="lining figures",
+ ["locl"]="localized forms",
+ ["ltra"]="left-to-right alternates",
+ ["ltrm"]="left-to-right mirrored forms",
+ ["mark"]="mark positioning",
+ ["med2"]="medial forms #2",
+ ["medi"]="medial forms",
+ ["mgrk"]="mathematical greek",
+ ["mkmk"]="mark to mark positioning",
+ ["mset"]="mark positioning via substitution",
+ ["nalt"]="alternate annotation forms",
+ ["nlck"]="nlc kanji forms",
+ ["nukt"]="nukta forms",
+ ["numr"]="numerators",
+ ["onum"]="old style figures",
+ ["opbd"]="optical bounds",
+ ["ordn"]="ordinals",
+ ["ornm"]="ornaments",
+ ["palt"]="proportional alternate width",
+ ["pcap"]="petite capitals",
+ ["pkna"]="proportional kana",
+ ["pnum"]="proportional figures",
+ ["pref"]="pre-base forms",
+ ["pres"]="pre-base substitutions",
+ ["pstf"]="post-base forms",
+ ["psts"]="post-base substitutions",
+ ["pwid"]="proportional widths",
+ ["qwid"]="quarter widths",
+ ["rand"]="randomize",
+ ["rclt"]="required contextual alternates",
+ ["rkrf"]="rakar forms",
+ ["rlig"]="required ligatures",
+ ["rphf"]="reph form",
+ ["rtbd"]="right bounds",
+ ["rtla"]="right-to-left alternates",
+ ["rtlm"]="right to left mirrored forms",
+ ["rvrn"]="required variation alternates",
+ ["ruby"]="ruby notation forms",
+ ["salt"]="stylistic alternates",
+ ["sinf"]="scientific inferiors",
+ ["size"]="optical size",
+ ["smcp"]="small capitals",
+ ["smpl"]="simplified forms",
+ ["ssty"]="script style",
+ ["stch"]="stretching glyph decomposition",
+ ["subs"]="subscript",
+ ["sups"]="superscript",
+ ["swsh"]="swash",
+ ["titl"]="titling",
+ ["tjmo"]="trailing jamo forms",
+ ["tnam"]="traditional name forms",
+ ["tnum"]="tabular figures",
+ ["trad"]="traditional forms",
+ ["twid"]="third widths",
+ ["unic"]="unicase",
+ ["valt"]="alternate vertical metrics",
+ ["vatu"]="vattu variants",
+ ["vert"]="vertical writing",
+ ["vhal"]="alternate vertical half metrics",
+ ["vjmo"]="vowel jamo forms",
+ ["vkna"]="vertical kana alternates",
+ ["vkrn"]="vertical kerning",
+ ["vpal"]="proportional alternate vertical metrics",
+ ["vrtr"]="vertical alternates for rotation",
+ ["vrt2"]="vertical rotation",
+ ["zero"]="slashed zero",
+ ["trep"]="traditional tex replacements",
+ ["tlig"]="traditional tex ligatures",
+ ["ss.."]="stylistic set ..",
+ ["cv.."]="character variant ..",
+ ["js.."]="justification ..",
+ ["dv.."]="devanagari ..",
+ ["ml.."]="malayalam ..",
+}
+local baselines=allocate {
+ ["hang"]="hanging baseline",
+ ["icfb"]="ideographic character face bottom edge baseline",
+ ["icft"]="ideographic character face tope edige baseline",
+ ["ideo"]="ideographic em-box bottom edge baseline",
+ ["idtp"]="ideographic em-box top edge baseline",
+ ["math"]="mathematical centered baseline",
+ ["romn"]="roman baseline"
+}
+tables.scripts=scripts
+tables.languages=languages
+tables.features=features
+tables.baselines=baselines
+local acceptscripts=true  directives.register("otf.acceptscripts",function(v) acceptscripts=v end)
+local acceptlanguages=true  directives.register("otf.acceptlanguages",function(v) acceptlanguages=v end)
+local report_checks=logs.reporter("fonts","checks")
+if otffeatures.features then
+ for k,v in next,otffeatures.features do
+  features[k]=v
+ end
+ otffeatures.features=features
+end
+local function swapped(h)
+ local r={}
+ for k,v in next,h do
+  r[gsub(v,"[^a-z0-9]","")]=k 
+ end
+ return r
+end
+local verbosescripts=allocate(swapped(scripts  ))
+local verboselanguages=allocate(swapped(languages))
+local verbosefeatures=allocate(swapped(features ))
+local verbosebaselines=allocate(swapped(baselines))
+local function resolve(t,k)
+ if k then
+  k=gsub(lower(k),"[^a-z0-9]","")
+  local v=rawget(t,k)
+  if v then
+   return v
+  end
+ end
+end
+setmetatableindex(verbosescripts,resolve)
+setmetatableindex(verboselanguages,resolve)
+setmetatableindex(verbosefeatures,resolve)
+setmetatableindex(verbosebaselines,resolve)
+setmetatableindex(scripts,function(t,k)
+ if k then
+  k=lower(k)
+  if k=="dflt" then
+   return k
+  end
+  local v=rawget(t,k)
+  if v then
+   return v
+  end
+  k=gsub(k," ","")
+  v=rawget(t,v)
+  if v then
+   return v
+  elseif acceptscripts then
+   report_checks("registering extra script %a",k)
+   rawset(t,k,k)
+   return k
+  end
+ end
+ return "dflt"
+end)
+setmetatableindex(languages,function(t,k)
+ if k then
+  k=lower(k)
+  if k=="dflt" then
+   return k
+  end
+  local v=rawget(t,k)
+  if v then
+   return v
+  end
+  k=gsub(k," ","")
+  v=rawget(t,v)
+  if v then
+   return v
+  elseif acceptlanguages then
+   report_checks("registering extra language %a",k)
+   rawset(t,k,k)
+   return k
+  end
+ end
+ return "dflt"
+end)
+if setmetatablenewindex then
+ setmetatablenewindex(languages,"ignore")
+ setmetatablenewindex(scripts,"ignore")
+ setmetatablenewindex(baselines,"ignore")
+end
+local function resolve(t,k)
+ if k then
+  k=lower(k)
+  local v=rawget(t,k)
+  if v then
+   return v
+  end
+  k=gsub(k," ","")
+  local v=rawget(t,k)
+  if v then
+   return v
+  end
+  local tag,dd=match(k,"(..)(%d+)")
+  if tag and dd then
+   local v=rawget(t,tag)
+   if v then
+    return v 
+   else
+    local v=rawget(t,tag.."..") 
+    if v then
+     return (gsub(v,"%.%.",tonumber(dd))) 
+    end
+   end
+  end
+ end
+ return k 
+end
+setmetatableindex(features,resolve)
+local function assign(t,k,v)
+ if k and v then
+  v=lower(v)
+  rawset(t,k,v)
+ end
+end
+if setmetatablenewindex then
+ setmetatablenewindex(features,assign)
+end
+local checkers={
+ rand=function(v)
+  return v==true and "random" or v
+ end
+}
+if not storage then
+ return
+end
+local usedfeatures=statistics.usedfeatures or {}
+statistics.usedfeatures=usedfeatures
+table.setmetatableindex(usedfeatures,function(t,k) if k then local v={} t[k]=v return v end end) 
+storage.register("fonts/otf/usedfeatures",usedfeatures,"fonts.handlers.otf.statistics.usedfeatures" )
+local normalizedaxis=otf.readers.helpers.normalizedaxis or function(s) return s end
+function otffeatures.normalize(features,wrap) 
+ if features then
+  local h={}
+  for key,value in next,features do
+   local k=lower(key)
+   if k=="language" then
+    local v=gsub(lower(value),"[^a-z0-9]","")
+    h.language=rawget(verboselanguages,v) or (languages[v] and v) or "dflt" 
+   elseif k=="script" then
+    local v=gsub(lower(value),"[^a-z0-9]","")
+    h.script=rawget(verbosescripts,v) or (scripts[v] and v) or "dflt" 
+   elseif k=="axis" then
+    h[k]=normalizedaxis(value)
+    if not callbacks.supported.glyph_stream_provider then
+     h.variableshapes=true 
+    end
+   else
+    local uk=usedfeatures[key]
+    local uv=uk[value]
+    if uv then
+    else
+     uv=tonumber(value) 
+     if uv then
+     elseif type(value)=="string" then
+      local b=is_boolean(value)
+      if type(b)=="nil" then
+       if wrap and find(value,",") then
+        uv="{"..lower(value).."}"
+       else
+        uv=lower(value)
+       end
+      else
+       uv=b
+      end
+     elseif type(value)=="table" then
+      uv=sequenced(t,",")
+     else
+      uv=value
+     end
+     if not rawget(features,k) then
+      k=rawget(verbosefeatures,k) or k
+     end
+     local c=checkers[k]
+     if c then
+      uv=c(uv) or vc
+     end
+     uk[value]=uv
+    end
+    h[k]=uv
+   end
+  end
+  return h
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-cff']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local next,type,tonumber,rawget=next,type,tonumber,rawget
+local byte,char,gmatch=string.byte,string.char,string.gmatch
+local concat,remove,unpack=table.concat,table.remove,table.unpack
+local floor,abs,round,ceil,min,max=math.floor,math.abs,math.round,math.ceil,math.min,math.max
+local P,C,R,S,C,Cs,Ct=lpeg.P,lpeg.C,lpeg.R,lpeg.S,lpeg.C,lpeg.Cs,lpeg.Ct
+local lpegmatch=lpeg.match
+local formatters=string.formatters
+local bytetable=string.bytetable
+local idiv=number.idiv
+local rshift,band,extract=bit32.rshift,bit32.band,bit32.extract
+local readers=fonts.handlers.otf.readers
+local streamreader=readers.streamreader
+local readstring=streamreader.readstring
+local readbyte=streamreader.readcardinal1  
+local readushort=streamreader.readcardinal2  
+local readuint=streamreader.readcardinal3  
+local readulong=streamreader.readcardinal4  
+local setposition=streamreader.setposition
+local getposition=streamreader.getposition
+local readbytetable=streamreader.readbytetable
+directives.register("fonts.streamreader",function()
+ streamreader=utilities.streams
+ readstring=streamreader.readstring
+ readbyte=streamreader.readcardinal1
+ readushort=streamreader.readcardinal2
+ readuint=streamreader.readcardinal3
+ readulong=streamreader.readcardinal4
+ setposition=streamreader.setposition
+ getposition=streamreader.getposition
+ readbytetable=streamreader.readbytetable
+end)
+local setmetatableindex=table.setmetatableindex
+local trace_charstrings=false trackers.register("fonts.cff.charstrings",function(v) trace_charstrings=v end)
+local report=logs.reporter("otf reader","cff")
+local parsedictionaries
+local parsecharstring
+local parsecharstrings
+local resetcharstrings
+local parseprivates
+local startparsing
+local stopparsing
+local defaultstrings={ [0]=
+ ".notdef","space","exclam","quotedbl","numbersign","dollar","percent",
+ "ampersand","quoteright","parenleft","parenright","asterisk","plus",
+ "comma","hyphen","period","slash","zero","one","two","three","four",
+ "five","six","seven","eight","nine","colon","semicolon","less",
+ "equal","greater","question","at","A","B","C","D","E","F","G","H",
+ "I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W",
+ "X","Y","Z","bracketleft","backslash","bracketright","asciicircum",
+ "underscore","quoteleft","a","b","c","d","e","f","g","h","i","j",
+ "k","l","m","n","o","p","q","r","s","t","u","v","w","x","y",
+ "z","braceleft","bar","braceright","asciitilde","exclamdown","cent",
+ "sterling","fraction","yen","florin","section","currency",
+ "quotesingle","quotedblleft","guillemotleft","guilsinglleft",
+ "guilsinglright","fi","fl","endash","dagger","daggerdbl",
+ "periodcentered","paragraph","bullet","quotesinglbase","quotedblbase",
+ "quotedblright","guillemotright","ellipsis","perthousand","questiondown",
+ "grave","acute","circumflex","tilde","macron","breve","dotaccent",
+ "dieresis","ring","cedilla","hungarumlaut","ogonek","caron","emdash",
+ "AE","ordfeminine","Lslash","Oslash","OE","ordmasculine","ae",
+ "dotlessi","lslash","oslash","oe","germandbls","onesuperior",
+ "logicalnot","mu","trademark","Eth","onehalf","plusminus","Thorn",
+ "onequarter","divide","brokenbar","degree","thorn","threequarters",
+ "twosuperior","registered","minus","eth","multiply","threesuperior",
+ "copyright","Aacute","Acircumflex","Adieresis","Agrave","Aring",
+ "Atilde","Ccedilla","Eacute","Ecircumflex","Edieresis","Egrave",
+ "Iacute","Icircumflex","Idieresis","Igrave","Ntilde","Oacute",
+ "Ocircumflex","Odieresis","Ograve","Otilde","Scaron","Uacute",
+ "Ucircumflex","Udieresis","Ugrave","Yacute","Ydieresis","Zcaron",
+ "aacute","acircumflex","adieresis","agrave","aring","atilde",
+ "ccedilla","eacute","ecircumflex","edieresis","egrave","iacute",
+ "icircumflex","idieresis","igrave","ntilde","oacute","ocircumflex",
+ "odieresis","ograve","otilde","scaron","uacute","ucircumflex",
+ "udieresis","ugrave","yacute","ydieresis","zcaron","exclamsmall",
+ "Hungarumlautsmall","dollaroldstyle","dollarsuperior","ampersandsmall",
+ "Acutesmall","parenleftsuperior","parenrightsuperior","twodotenleader",
+ "onedotenleader","zerooldstyle","oneoldstyle","twooldstyle",
+ "threeoldstyle","fouroldstyle","fiveoldstyle","sixoldstyle",
+ "sevenoldstyle","eightoldstyle","nineoldstyle","commasuperior",
+ "threequartersemdash","periodsuperior","questionsmall","asuperior",
+ "bsuperior","centsuperior","dsuperior","esuperior","isuperior",
+ "lsuperior","msuperior","nsuperior","osuperior","rsuperior","ssuperior",
+ "tsuperior","ff","ffi","ffl","parenleftinferior","parenrightinferior",
+ "Circumflexsmall","hyphensuperior","Gravesmall","Asmall","Bsmall",
+ "Csmall","Dsmall","Esmall","Fsmall","Gsmall","Hsmall","Ismall",
+ "Jsmall","Ksmall","Lsmall","Msmall","Nsmall","Osmall","Psmall",
+ "Qsmall","Rsmall","Ssmall","Tsmall","Usmall","Vsmall","Wsmall",
+ "Xsmall","Ysmall","Zsmall","colonmonetary","onefitted","rupiah",
+ "Tildesmall","exclamdownsmall","centoldstyle","Lslashsmall",
+ "Scaronsmall","Zcaronsmall","Dieresissmall","Brevesmall","Caronsmall",
+ "Dotaccentsmall","Macronsmall","figuredash","hypheninferior",
+ "Ogoneksmall","Ringsmall","Cedillasmall","questiondownsmall","oneeighth",
+ "threeeighths","fiveeighths","seveneighths","onethird","twothirds",
+ "zerosuperior","foursuperior","fivesuperior","sixsuperior",
+ "sevensuperior","eightsuperior","ninesuperior","zeroinferior",
+ "oneinferior","twoinferior","threeinferior","fourinferior",
+ "fiveinferior","sixinferior","seveninferior","eightinferior",
+ "nineinferior","centinferior","dollarinferior","periodinferior",
+ "commainferior","Agravesmall","Aacutesmall","Acircumflexsmall",
+ "Atildesmall","Adieresissmall","Aringsmall","AEsmall","Ccedillasmall",
+ "Egravesmall","Eacutesmall","Ecircumflexsmall","Edieresissmall",
+ "Igravesmall","Iacutesmall","Icircumflexsmall","Idieresissmall",
+ "Ethsmall","Ntildesmall","Ogravesmall","Oacutesmall","Ocircumflexsmall",
+ "Otildesmall","Odieresissmall","OEsmall","Oslashsmall","Ugravesmall",
+ "Uacutesmall","Ucircumflexsmall","Udieresissmall","Yacutesmall",
+ "Thornsmall","Ydieresissmall","001.000","001.001","001.002","001.003",
+ "Black","Bold","Book","Light","Medium","Regular","Roman","Semibold",
+}
+local cffreaders={
+ readbyte,
+ readushort,
+ readuint,
+ readulong,
+}
+local function readheader(f)
+ local offset=getposition(f)
+ local major=readbyte(f)
+ local header={
+  offset=offset,
+  major=major,
+  minor=readbyte(f),
+  size=readbyte(f),
+ }
+ if major==1 then
+  header.dsize=readbyte(f)   
+ elseif major==2 then
+  header.dsize=readushort(f) 
+ else
+ end
+ setposition(f,offset+header.size)
+ return header
+end
+local function readlengths(f,longcount)
+ local count=longcount and readulong(f) or readushort(f)
+ if count==0 then
+  return {}
+ end
+ local osize=readbyte(f)
+ local read=cffreaders[osize]
+ if not read then
+  report("bad offset size: %i",osize)
+  return {}
+ end
+ local lengths={}
+ local previous=read(f)
+ for i=1,count do
+  local offset=read(f)
+  local length=offset-previous
+  if length<0 then
+   report("bad offset: %i",length)
+   length=0
+  end
+  lengths[i]=length
+  previous=offset
+ end
+ return lengths
+end
+local function readfontnames(f)
+ local names=readlengths(f)
+ for i=1,#names do
+  names[i]=readstring(f,names[i])
+ end
+ return names
+end
+local function readtopdictionaries(f)
+ local dictionaries=readlengths(f)
+ for i=1,#dictionaries do
+  dictionaries[i]=readstring(f,dictionaries[i])
+ end
+ return dictionaries
+end
+local function readstrings(f)
+ local lengths=readlengths(f)
+ local strings=setmetatableindex({},defaultstrings)
+ local index=#defaultstrings
+ for i=1,#lengths do
+  index=index+1
+  strings[index]=readstring(f,lengths[i])
+ end
+ return strings
+end
+do
+ local stack={}
+ local top=0
+ local result={}
+ local strings={}
+ local p_single=P("\00")/function()
+   result.version=strings[stack[top]] or "unset"
+   top=0
+  end+P("\01")/function()
+   result.notice=strings[stack[top]] or "unset"
+   top=0
+  end+P("\02")/function()
+   result.fullname=strings[stack[top]] or "unset"
+   top=0
+  end+P("\03")/function()
+   result.familyname=strings[stack[top]] or "unset"
+   top=0
+  end+P("\04")/function()
+   result.weight=strings[stack[top]] or "unset"
+   top=0
+  end+P("\05")/function()
+   result.fontbbox={ unpack(stack,1,4) }
+   top=0
+  end+P("\06")/function()
+   result.bluevalues={ unpack(stack,1,top) }
+   top=0
+  end+P("\07")/function()
+   result.otherblues={ unpack(stack,1,top) }
+   top=0
+  end+P("\08")/function()
+   result.familyblues={ unpack(stack,1,top) }
+   top=0
+  end+P("\09")/function()
+   result.familyotherblues={ unpack(stack,1,top) }
+   top=0
+  end+P("\10")/function()
+   result.strhw=stack[top]
+   top=0
+  end+P("\11")/function()
+   result.strvw=stack[top]
+   top=0
+  end+P("\13")/function()
+   result.uniqueid=stack[top]
+   top=0
+  end+P("\14")/function()
+   result.xuid=concat(stack,"",1,top)
+   top=0
+  end+P("\15")/function()
+   result.charset=stack[top]
+   top=0
+  end+P("\16")/function()
+   result.encoding=stack[top]
+   top=0
+  end+P("\17")/function() 
+   result.charstrings=stack[top]
+   top=0
+  end+P("\18")/function()
+   result.private={
+    size=stack[top-1],
+    offset=stack[top],
+   }
+   top=0
+  end+P("\19")/function()
+   result.subroutines=stack[top]
+   top=0 
+  end+P("\20")/function()
+   result.defaultwidthx=stack[top]
+   top=0 
+  end+P("\21")/function()
+   result.nominalwidthx=stack[top]
+   top=0 
+  end
++P("\24")/function() 
+   result.vstore=stack[top]
+   top=0
+  end+P("\25")/function() 
+   result.maxstack=stack[top]
+   top=0
+  end
+ local p_double=P("\12")*(
+  P("\00")/function()
+   result.copyright=stack[top]
+   top=0
+  end+P("\01")/function()
+   result.monospaced=stack[top]==1 and true or false 
+   top=0
+  end+P("\02")/function()
+   result.italicangle=stack[top]
+   top=0
+  end+P("\03")/function()
+   result.underlineposition=stack[top]
+   top=0
+  end+P("\04")/function()
+   result.underlinethickness=stack[top]
+   top=0
+  end+P("\05")/function()
+   result.painttype=stack[top]
+   top=0
+  end+P("\06")/function()
+   result.charstringtype=stack[top]
+   top=0
+  end+P("\07")/function() 
+   result.fontmatrix={ unpack(stack,1,6) }
+   top=0
+  end+P("\08")/function()
+   result.strokewidth=stack[top]
+   top=0
+  end+P("\09")/function()
+   result.bluescale=stack[top]
+   top=0
+  end+P("\10")/function()
+   result.bluesnap=stack[top]
+   top=0
+  end+P("\11")/function()
+   result.bluefuzz=stack[top]
+   top=0
+  end+P("\12")/function()
+   result.stemsnaph={ unpack(stack,1,top) }
+   top=0
+  end+P("\13")/function()
+   result.stemsnapv={ unpack(stack,1,top) }
+   top=0
+  end+P("\20")/function()
+   result.syntheticbase=stack[top]
+   top=0
+  end+P("\21")/function()
+   result.postscript=strings[stack[top]] or "unset"
+   top=0
+  end+P("\22")/function()
+   result.basefontname=strings[stack[top]] or "unset"
+   top=0
+  end+P("\21")/function()
+   result.basefontblend=stack[top]
+   top=0
+  end+P("\30")/function()
+   result.cid.registry=strings[stack[top-2]] or "unset"
+   result.cid.ordering=strings[stack[top-1]] or "unset"
+   result.cid.supplement=stack[top]
+   top=0
+  end+P("\31")/function()
+   result.cid.fontversion=stack[top]
+   top=0
+  end+P("\32")/function()
+   result.cid.fontrevision=stack[top]
+   top=0
+  end+P("\33")/function()
+   result.cid.fonttype=stack[top]
+   top=0
+  end+P("\34")/function()
+   result.cid.count=stack[top]
+   top=0
+  end+P("\35")/function()
+   result.cid.uidbase=stack[top]
+   top=0
+  end+P("\36")/function() 
+   result.cid.fdarray=stack[top]
+   top=0
+  end+P("\37")/function() 
+   result.cid.fdselect=stack[top]
+   top=0
+  end+P("\38")/function()
+   result.cid.fontname=strings[stack[top]] or "unset"
+   top=0
+  end
+ )
+ local remap={
+  ["\x00"]="00",["\x01"]="01",["\x02"]="02",["\x03"]="03",["\x04"]="04",["\x05"]="05",["\x06"]="06",["\x07"]="07",["\x08"]="08",["\x09"]="09",["\x0A"]="0.",["\x0B"]="0E",["\x0C"]="0E-",["\x0D"]="0",["\x0E"]="0-",["\x0F"]="0",
+  ["\x10"]="10",["\x11"]="11",["\x12"]="12",["\x13"]="13",["\x14"]="14",["\x15"]="15",["\x16"]="16",["\x17"]="17",["\x18"]="18",["\x19"]="19",["\x1A"]="1.",["\x1B"]="1E",["\x1C"]="1E-",["\x1D"]="1",["\x1E"]="1-",["\x1F"]="1",
+  ["\x20"]="20",["\x21"]="21",["\x22"]="22",["\x23"]="23",["\x24"]="24",["\x25"]="25",["\x26"]="26",["\x27"]="27",["\x28"]="28",["\x29"]="29",["\x2A"]="2.",["\x2B"]="2E",["\x2C"]="2E-",["\x2D"]="2",["\x2E"]="2-",["\x2F"]="2",
+  ["\x30"]="30",["\x31"]="31",["\x32"]="32",["\x33"]="33",["\x34"]="34",["\x35"]="35",["\x36"]="36",["\x37"]="37",["\x38"]="38",["\x39"]="39",["\x3A"]="3.",["\x3B"]="3E",["\x3C"]="3E-",["\x3D"]="3",["\x3E"]="3-",["\x3F"]="3",
+  ["\x40"]="40",["\x41"]="41",["\x42"]="42",["\x43"]="43",["\x44"]="44",["\x45"]="45",["\x46"]="46",["\x47"]="47",["\x48"]="48",["\x49"]="49",["\x4A"]="4.",["\x4B"]="4E",["\x4C"]="4E-",["\x4D"]="4",["\x4E"]="4-",["\x4F"]="4",
+  ["\x50"]="50",["\x51"]="51",["\x52"]="52",["\x53"]="53",["\x54"]="54",["\x55"]="55",["\x56"]="56",["\x57"]="57",["\x58"]="58",["\x59"]="59",["\x5A"]="5.",["\x5B"]="5E",["\x5C"]="5E-",["\x5D"]="5",["\x5E"]="5-",["\x5F"]="5",
+  ["\x60"]="60",["\x61"]="61",["\x62"]="62",["\x63"]="63",["\x64"]="64",["\x65"]="65",["\x66"]="66",["\x67"]="67",["\x68"]="68",["\x69"]="69",["\x6A"]="6.",["\x6B"]="6E",["\x6C"]="6E-",["\x6D"]="6",["\x6E"]="6-",["\x6F"]="6",
+  ["\x70"]="70",["\x71"]="71",["\x72"]="72",["\x73"]="73",["\x74"]="74",["\x75"]="75",["\x76"]="76",["\x77"]="77",["\x78"]="78",["\x79"]="79",["\x7A"]="7.",["\x7B"]="7E",["\x7C"]="7E-",["\x7D"]="7",["\x7E"]="7-",["\x7F"]="7",
+  ["\x80"]="80",["\x81"]="81",["\x82"]="82",["\x83"]="83",["\x84"]="84",["\x85"]="85",["\x86"]="86",["\x87"]="87",["\x88"]="88",["\x89"]="89",["\x8A"]="8.",["\x8B"]="8E",["\x8C"]="8E-",["\x8D"]="8",["\x8E"]="8-",["\x8F"]="8",
+  ["\x90"]="90",["\x91"]="91",["\x92"]="92",["\x93"]="93",["\x94"]="94",["\x95"]="95",["\x96"]="96",["\x97"]="97",["\x98"]="98",["\x99"]="99",["\x9A"]="9.",["\x9B"]="9E",["\x9C"]="9E-",["\x9D"]="9",["\x9E"]="9-",["\x9F"]="9",
+  ["\xA0"]=".0",["\xA1"]=".1",["\xA2"]=".2",["\xA3"]=".3",["\xA4"]=".4",["\xA5"]=".5",["\xA6"]=".6",["\xA7"]=".7",["\xA8"]=".8",["\xA9"]=".9",["\xAA"]="..",["\xAB"]=".E",["\xAC"]=".E-",["\xAD"]=".",["\xAE"]=".-",["\xAF"]=".",
+  ["\xB0"]="E0",["\xB1"]="E1",["\xB2"]="E2",["\xB3"]="E3",["\xB4"]="E4",["\xB5"]="E5",["\xB6"]="E6",["\xB7"]="E7",["\xB8"]="E8",["\xB9"]="E9",["\xBA"]="E.",["\xBB"]="EE",["\xBC"]="EE-",["\xBD"]="E",["\xBE"]="E-",["\xBF"]="E",
+  ["\xC0"]="E-0",["\xC1"]="E-1",["\xC2"]="E-2",["\xC3"]="E-3",["\xC4"]="E-4",["\xC5"]="E-5",["\xC6"]="E-6",["\xC7"]="E-7",["\xC8"]="E-8",["\xC9"]="E-9",["\xCA"]="E-.",["\xCB"]="E-E",["\xCC"]="E-E-",["\xCD"]="E-",["\xCE"]="E--",["\xCF"]="E-",
+  ["\xD0"]="-0",["\xD1"]="-1",["\xD2"]="-2",["\xD3"]="-3",["\xD4"]="-4",["\xD5"]="-5",["\xD6"]="-6",["\xD7"]="-7",["\xD8"]="-8",["\xD9"]="-9",["\xDA"]="-.",["\xDB"]="-E",["\xDC"]="-E-",["\xDD"]="-",["\xDE"]="--",["\xDF"]="-",
+ }
+ local p_last=S("\x0F\x1F\x2F\x3F\x4F\x5F\x6F\x7F\x8F\x9F\xAF\xBF")+R("\xF0\xFF")
+ local p_nibbles=P("\30")*Cs(((1-p_last)/remap)^0*(P(1)/remap))/function(n)
+  top=top+1
+  stack[top]=tonumber(n) or 0
+ end
+ local p_byte=C(R("\32\246"))/function(b0)
+  top=top+1
+  stack[top]=byte(b0)-139
+ end
+ local p_positive=C(R("\247\250"))*C(1)/function(b0,b1)
+  top=top+1
+  stack[top]=(byte(b0)-247)*256+byte(b1)+108
+ end
+ local p_negative=C(R("\251\254"))*C(1)/function(b0,b1)
+  top=top+1
+  stack[top]=-(byte(b0)-251)*256-byte(b1)-108
+ end
+ local p_short=P("\28")*C(1)*C(1)/function(b1,b2)
+  top=top+1
+  local n=0x100*byte(b1)+byte(b2)
+  if n>=0x8000 then
+   stack[top]=n-0xFFFF-1
+  else
+   stack[top]=n
+  end
+ end
+ local p_long=P("\29")*C(1)*C(1)*C(1)*C(1)/function(b1,b2,b3,b4)
+  top=top+1
+  local n=0x1000000*byte(b1)+0x10000*byte(b2)+0x100*byte(b3)+byte(b4)
+  if n>=0x8000000 then
+   stack[top]=n-0xFFFFFFFF-1
+  else
+   stack[top]=n
+  end
+ end
+ local p_unsupported=P(1)/function(detail)
+  top=0
+ end
+ local p_dictionary=(
+  p_byte+p_positive+p_negative+p_short+p_long+p_nibbles+p_single+p_double+p_unsupported
+ )^1
+ parsedictionaries=function(data,dictionaries,what)
+  stack={}
+  strings=data.strings
+  for i=1,#dictionaries do
+   top=0
+   result=what=="cff" and {
+    monospaced=false,
+    italicangle=0,
+    underlineposition=-100,
+    underlinethickness=50,
+    painttype=0,
+    charstringtype=2,
+    fontmatrix={ 0.001,0,0,0.001,0,0 },
+    fontbbox={ 0,0,0,0 },
+    strokewidth=0,
+    charset=0,
+    encoding=0,
+    cid={
+     fontversion=0,
+     fontrevision=0,
+     fonttype=0,
+     count=8720,
+    }
+   } or {
+    charstringtype=2,
+    charset=0,
+    vstore=0,
+    cid={
+    },
+   }
+   lpegmatch(p_dictionary,dictionaries[i])
+   dictionaries[i]=result
+  end
+  result={}
+  top=0
+  stack={}
+ end
+ parseprivates=function(data,dictionaries)
+  stack={}
+  strings=data.strings
+  for i=1,#dictionaries do
+   local private=dictionaries[i].private
+   if private and private.data then
+    top=0
+    result={
+     forcebold=false,
+     languagegroup=0,
+     expansionfactor=0.06,
+     initialrandomseed=0,
+     subroutines=0,
+     defaultwidthx=0,
+     nominalwidthx=0,
+     cid={
+     },
+    }
+    lpegmatch(p_dictionary,private.data)
+    private.data=result
+   end
+  end
+  result={}
+  top=0
+  stack={}
+ end
+ local x=0
+ local y=0
+ local width=false
+ local r=0
+ local stems=0
+ local globalbias=0
+ local localbias=0
+ local nominalwidth=0
+ local defaultwidth=0
+ local charset=false
+ local globals=false
+ local locals=false
+ local depth=1
+ local xmin=0
+ local xmax=0
+ local ymin=0
+ local ymax=0
+ local checked=false
+ local keepcurve=false
+ local version=2
+ local regions=false
+ local nofregions=0
+ local region=false
+ local factors=false
+ local axis=false
+ local vsindex=0
+ local function showstate(where)
+  report("%w%-10s : [%s] n=%i",depth*2,where,concat(stack," ",1,top),top)
+ end
+ local function showvalue(where,value,showstack)
+  if showstack then
+   report("%w%-10s : %s : [%s] n=%i",depth*2,where,tostring(value),concat(stack," ",1,top),top)
+  else
+   report("%w%-10s : %s",depth*2,where,tostring(value))
+  end
+ end
+ local function xymoveto()
+  if keepcurve then
+   r=r+1
+   result[r]={ x,y,"m" }
+  end
+  if checked then
+   if x>xmax then xmax=x elseif x<xmin then xmin=x end
+   if y>ymax then ymax=y elseif y<ymin then ymin=y end
+  else
+   xmin=x
+   ymin=y
+   xmax=x
+   ymax=y
+   checked=true
+  end
+ end
+ local function xmoveto() 
+  if keepcurve then
+   r=r+1
+   result[r]={ x,y,"m" }
+  end
+  if not checked then
+   xmin=x
+   ymin=y
+   xmax=x
+   ymax=y
+   checked=true
+  elseif x>xmax then
+   xmax=x
+  elseif x<xmin then
+   xmin=x
+  end
+ end
+ local function ymoveto() 
+  if keepcurve then
+   r=r+1
+   result[r]={ x,y,"m" }
+  end
+  if not checked then
+   xmin=x
+   ymin=y
+   xmax=x
+   ymax=y
+   checked=true
+  elseif y>ymax then
+   ymax=y
+  elseif y<ymin then
+   ymin=y
+  end
+ end
+ local function moveto()
+  if trace_charstrings then
+   showstate("moveto")
+  end
+  top=0 
+  xymoveto()
+ end
+ local function xylineto() 
+  if keepcurve then
+   r=r+1
+   result[r]={ x,y,"l" }
+  end
+  if checked then
+   if x>xmax then xmax=x elseif x<xmin then xmin=x end
+   if y>ymax then ymax=y elseif y<ymin then ymin=y end
+  else
+   xmin=x
+   ymin=y
+   xmax=x
+   ymax=y
+   checked=true
+  end
+ end
+ local function xlineto() 
+  if keepcurve then
+   r=r+1
+   result[r]={ x,y,"l" }
+  end
+  if not checked then
+   xmin=x
+   ymin=y
+   xmax=x
+   ymax=y
+   checked=true
+  elseif x>xmax then
+   xmax=x
+  elseif x<xmin then
+   xmin=x
+  end
+ end
+ local function ylineto() 
+  if keepcurve then
+   r=r+1
+   result[r]={ x,y,"l" }
+  end
+  if not checked then
+   xmin=x
+   ymin=y
+   xmax=x
+   ymax=y
+   checked=true
+  elseif y>ymax then
+   ymax=y
+  elseif y<ymin then
+   ymin=y
+  end
+ end
+ local function xycurveto(x1,y1,x2,y2,x3,y3) 
+  if trace_charstrings then
+   showstate("curveto")
+  end
+  if keepcurve then
+   r=r+1
+   result[r]={ x1,y1,x2,y2,x3,y3,"c" }
+  end
+  if checked then
+   if x1>xmax then xmax=x1 elseif x1<xmin then xmin=x1 end
+   if y1>ymax then ymax=y1 elseif y1<ymin then ymin=y1 end
+  else
+   xmin=x1
+   ymin=y1
+   xmax=x1
+   ymax=y1
+   checked=true
+  end
+  if x2>xmax then xmax=x2 elseif x2<xmin then xmin=x2 end
+  if y2>ymax then ymax=y2 elseif y2<ymin then ymin=y2 end
+  if x3>xmax then xmax=x3 elseif x3<xmin then xmin=x3 end
+  if y3>ymax then ymax=y3 elseif y3<ymin then ymin=y3 end
+ end
+ local function rmoveto()
+  if not width then
+   if top>2 then
+    width=stack[1]
+    if trace_charstrings then
+     showvalue("backtrack width",width)
+    end
+   else
+    width=true
+   end
+  end
+  if trace_charstrings then
+   showstate("rmoveto")
+  end
+  x=x+stack[top-1] 
+  y=y+stack[top]   
+  top=0
+  xymoveto()
+ end
+ local function hmoveto()
+  if not width then
+   if top>1 then
+    width=stack[1]
+    if trace_charstrings then
+     showvalue("backtrack width",width)
+    end
+   else
+    width=true
+   end
+  end
+  if trace_charstrings then
+   showstate("hmoveto")
+  end
+  x=x+stack[top] 
+  top=0
+  xmoveto()
+ end
+ local function vmoveto()
+  if not width then
+   if top>1 then
+    width=stack[1]
+    if trace_charstrings then
+     showvalue("backtrack width",width)
+    end
+   else
+    width=true
+   end
+  end
+  if trace_charstrings then
+   showstate("vmoveto")
+  end
+  y=y+stack[top] 
+  top=0
+  ymoveto()
+ end
+ local function rlineto()
+  if trace_charstrings then
+   showstate("rlineto")
+  end
+  for i=1,top,2 do
+   x=x+stack[i]   
+   y=y+stack[i+1] 
+   xylineto()
+  end
+  top=0
+ end
+ local function hlineto() 
+  if trace_charstrings then
+   showstate("hlineto")
+  end
+  if top==1 then
+   x=x+stack[1]
+   xlineto()
+  else
+   local swap=true
+   for i=1,top do
+    if swap then
+     x=x+stack[i]
+     xlineto()
+     swap=false
+    else
+     y=y+stack[i]
+     ylineto()
+     swap=true
+    end
+   end
+  end
+  top=0
+ end
+ local function vlineto() 
+  if trace_charstrings then
+   showstate("vlineto")
+  end
+  if top==1 then
+   y=y+stack[1]
+   ylineto()
+  else
+   local swap=false
+   for i=1,top do
+    if swap then
+     x=x+stack[i]
+     xlineto()
+     swap=false
+    else
+     y=y+stack[i]
+     ylineto()
+     swap=true
+    end
+   end
+  end
+  top=0
+ end
+ local function rrcurveto()
+  if trace_charstrings then
+   showstate("rrcurveto")
+  end
+  for i=1,top,6 do
+   local ax=x+stack[i]   
+   local ay=y+stack[i+1] 
+   local bx=ax+stack[i+2] 
+   local by=ay+stack[i+3] 
+   x=bx+stack[i+4]  
+   y=by+stack[i+5]  
+   xycurveto(ax,ay,bx,by,x,y)
+  end
+  top=0
+ end
+ local function hhcurveto()
+  if trace_charstrings then
+   showstate("hhcurveto")
+  end
+  local s=1
+  if top%2~=0 then
+   y=y+stack[1]     
+   s=2
+  end
+  for i=s,top,4 do
+   local ax=x+stack[i] 
+   local ay=y
+   local bx=ax+stack[i+1] 
+   local by=ay+stack[i+2] 
+   x=bx+stack[i+3]  
+   y=by
+   xycurveto(ax,ay,bx,by,x,y)
+  end
+  top=0
+ end
+ local function vvcurveto()
+  if trace_charstrings then
+   showstate("vvcurveto")
+  end
+  local s=1
+  local d=0
+  if top%2~=0 then
+   d=stack[1]      
+   s=2
+  end
+  for i=s,top,4 do
+   local ax=x+d
+   local ay=y+stack[i] 
+   local bx=ax+stack[i+1] 
+   local by=ay+stack[i+2] 
+   x=bx
+   y=by+stack[i+3]  
+   xycurveto(ax,ay,bx,by,x,y)
+   d=0
+  end
+  top=0
+ end
+ local function xxcurveto(swap)
+  local last=top%4~=0 and stack[top]
+  if last then
+   top=top-1
+  end
+  for i=1,top,4 do
+   local ax,ay,bx,by
+   if swap then
+    ax=x+stack[i]
+    ay=y
+    bx=ax+stack[i+1]
+    by=ay+stack[i+2]
+    y=by+stack[i+3]
+    if last and i+3==top then
+     x=bx+last
+    else
+     x=bx
+    end
+    swap=false
+   else
+    ax=x
+    ay=y+stack[i]
+    bx=ax+stack[i+1]
+    by=ay+stack[i+2]
+    x=bx+stack[i+3]
+    if last and i+3==top then
+     y=by+last
+    else
+     y=by
+    end
+    swap=true
+   end
+   xycurveto(ax,ay,bx,by,x,y)
+  end
+  top=0
+ end
+ local function hvcurveto()
+  if trace_charstrings then
+   showstate("hvcurveto")
+  end
+  xxcurveto(true)
+ end
+ local function vhcurveto()
+  if trace_charstrings then
+   showstate("vhcurveto")
+  end
+  xxcurveto(false)
+ end
+ local function rcurveline()
+  if trace_charstrings then
+   showstate("rcurveline")
+  end
+  for i=1,top-2,6 do
+   local ax=x+stack[i]   
+   local ay=y+stack[i+1] 
+   local bx=ax+stack[i+2] 
+   local by=ay+stack[i+3] 
+   x=bx+stack[i+4] 
+   y=by+stack[i+5] 
+   xycurveto(ax,ay,bx,by,x,y)
+  end
+  x=x+stack[top-1] 
+  y=y+stack[top]   
+  xylineto()
+  top=0
+ end
+ local function rlinecurve()
+  if trace_charstrings then
+   showstate("rlinecurve")
+  end
+  if top>6 then
+   for i=1,top-6,2 do
+    x=x+stack[i]
+    y=y+stack[i+1]
+    xylineto()
+   end
+  end
+  local ax=x+stack[top-5]
+  local ay=y+stack[top-4]
+  local bx=ax+stack[top-3]
+  local by=ay+stack[top-2]
+  x=bx+stack[top-1]
+  y=by+stack[top]
+  xycurveto(ax,ay,bx,by,x,y)
+  top=0
+ end
+ local function flex() 
+  if trace_charstrings then
+   showstate("flex")
+  end
+  local ax=x+stack[1]  
+  local ay=y+stack[2]  
+  local bx=ax+stack[3]  
+  local by=ay+stack[4]  
+  local cx=bx+stack[5]  
+  local cy=by+stack[6]  
+  xycurveto(ax,ay,bx,by,cx,cy)
+  local dx=cx+stack[7]  
+  local dy=cy+stack[8]  
+  local ex=dx+stack[9]  
+  local ey=dy+stack[10] 
+  x=ex+stack[11]  
+  y=ey+stack[12]  
+  xycurveto(dx,dy,ex,ey,x,y)
+  top=0
+ end
+ local function hflex()
+  if trace_charstrings then
+   showstate("hflex")
+  end
+  local ax=x+stack[1] 
+  local ay=y
+  local bx=ax+stack[2] 
+  local by=ay+stack[3] 
+  local cx=bx+stack[4] 
+  local cy=by
+  xycurveto(ax,ay,bx,by,cx,cy)
+  local dx=cx+stack[5] 
+  local dy=by
+  local ex=dx+stack[6] 
+  local ey=y
+  x=ex+stack[7]  
+  xycurveto(dx,dy,ex,ey,x,y)
+  top=0
+ end
+ local function hflex1()
+  if trace_charstrings then
+   showstate("hflex1")
+  end
+  local ax=x+stack[1] 
+  local ay=y+stack[2] 
+  local bx=ax+stack[3] 
+  local by=ay+stack[4] 
+  local cx=bx+stack[5] 
+  local cy=by
+  xycurveto(ax,ay,bx,by,cx,cy)
+  local dx=cx+stack[6] 
+  local dy=by
+  local ex=dx+stack[7] 
+  local ey=dy+stack[8] 
+  x=ex+stack[9]  
+  xycurveto(dx,dy,ex,ey,x,y)
+  top=0
+ end
+ local function flex1()
+  if trace_charstrings then
+   showstate("flex1")
+  end
+  local ax=x+stack[1]  
+  local ay=y+stack[2]  
+  local bx=ax+stack[3]  
+  local by=ay+stack[4]  
+  local cx=bx+stack[5]  
+  local cy=by+stack[6]  
+  xycurveto(ax,ay,bx,by,cx,cy)
+  local dx=cx+stack[7]  
+  local dy=cy+stack[8]  
+  local ex=dx+stack[9]  
+  local ey=dy+stack[10] 
+  if abs(ex-x)>abs(ey-y) then 
+   x=ex+stack[11]
+  else
+   y=ey+stack[11]
+  end
+  xycurveto(dx,dy,ex,ey,x,y)
+  top=0
+ end
+ local function getstem()
+  if top==0 then
+  elseif top%2~=0 then
+   if width then
+    remove(stack,1)
+   else
+    width=remove(stack,1)
+    if trace_charstrings then
+     showvalue("width",width)
+    end
+   end
+   top=top-1
+  end
+  if trace_charstrings then
+   showstate("stem")
+  end
+  stems=stems+idiv(top,2)
+  top=0
+ end
+ local function getmask()
+  if top==0 then
+  elseif top%2~=0 then
+   if width then
+    remove(stack,1)
+   else
+    width=remove(stack,1)
+    if trace_charstrings then
+     showvalue("width",width)
+    end
+   end
+   top=top-1
+  end
+  if trace_charstrings then
+   showstate(operator==19 and "hintmark" or "cntrmask")
+  end
+  stems=stems+idiv(top,2)
+  top=0
+  if stems==0 then
+  elseif stems<=8 then
+   return 1
+  else
+   return idiv(stems+7,8)
+  end
+ end
+ local function unsupported(t)
+  if trace_charstrings then
+   showstate("unsupported "..t)
+  end
+  top=0
+ end
+ local function unsupportedsub(t)
+  if trace_charstrings then
+   showstate("unsupported sub "..t)
+  end
+  top=0
+ end
+ local function getstem3()
+  if trace_charstrings then
+   showstate("stem3")
+  end
+  top=0
+ end
+ local function divide()
+  if version==1 then
+   local d=stack[top]
+   top=top-1
+   stack[top]=stack[top]/d
+  end
+ end
+ local function closepath()
+  if version==1 then
+   if trace_charstrings then
+    showstate("closepath")
+   end
+  end
+  top=0
+ end
+ local function hsbw()
+  if version==1 then
+   if trace_charstrings then
+    showstate("hsbw")
+   end
+   width=stack[top]
+  end
+  top=0
+ end
+ local function seac()
+  if version==1 then
+   if trace_charstrings then
+    showstate("seac")
+   end
+  end
+  top=0
+ end
+ local function sbw()
+  if version==1 then
+   if trace_charstrings then
+    showstate("sbw")
+   end
+   width=stack[top-1]
+  end
+  top=0
+ end
+ local function callothersubr()
+  if version==1 then
+   if trace_charstrings then
+    showstate("callothersubr (unsupported)")
+   end
+  end
+  top=0
+ end
+ local function pop()
+  if version==1 then
+   if trace_charstrings then
+    showstate("pop (unsupported)")
+   end
+   top=top+1
+   stack[top]=0 
+  else
+   top=0
+  end
+ end
+ local function setcurrentpoint()
+  if version==1 then
+   if trace_charstrings then
+    showstate("pop (unsupported)")
+   end
+   x=x+stack[top-1]
+   y=y+stack[top]
+  end
+  top=0
+ end
+ local reginit=false
+ local function updateregions(n) 
+  if regions then
+   local current=regions[n] or regions[1]
+   nofregions=#current
+   if axis and n~=reginit then
+    factors={}
+    for i=1,nofregions do
+     local region=current[i]
+     local s=1
+     for j=1,#axis do
+      local f=axis[j]
+      local r=region[j]
+      local start=r.start
+      local peak=r.peak
+      local stop=r.stop
+      if start>peak or peak>stop then
+      elseif start<0 and stop>0 and peak~=0 then
+      elseif peak==0 then
+      elseif f<start or f>stop then
+       s=0
+       break
+      elseif f<peak then
+       s=s*(f-start)/(peak-start)
+      elseif f>peak then
+       s=s*(stop-f)/(stop-peak)
+      else
+      end
+     end
+     factors[i]=s
+    end
+   end
+  end
+  reginit=n
+ end
+ local function setvsindex()
+  local vsindex=stack[top]
+  if trace_charstrings then
+   showstate(formatters["vsindex %i"](vsindex))
+  end
+  updateregions(vsindex)
+  top=top-1
+ end
+ local function blend()
+  local n=stack[top]
+  top=top-1
+  if axis then
+   if trace_charstrings then
+    local t=top-nofregions*n
+    local m=t-n
+    for i=1,n do
+     local k=m+i
+     local d=m+n+(i-1)*nofregions
+     local old=stack[k]
+     local new=old
+     for r=1,nofregions do
+      new=new+stack[d+r]*factors[r]
+     end
+     stack[k]=new
+     showstate(formatters["blend %i of %i: %s -> %s"](i,n,old,new))
+    end
+    top=t
+   elseif n==1 then
+    top=top-nofregions
+    local v=stack[top]
+    for r=1,nofregions do
+     v=v+stack[top+r]*factors[r]
+    end
+    stack[top]=v
+   else
+    top=top-nofregions*n
+    local d=top
+    local k=top-n
+    for i=1,n do
+     k=k+1
+     local v=stack[k]
+     for r=1,nofregions do
+      v=v+stack[d+r]*factors[r]
+     end
+     stack[k]=v
+     d=d+nofregions
+    end
+   end
+  else
+  end
+ end
+ local actions={ [0]=unsupported,
+  getstem,
+  unsupported,
+  getstem,
+  vmoveto,
+  rlineto,
+  hlineto,
+  vlineto,
+  rrcurveto,
+  unsupported,
+  unsupported,
+  unsupported,
+  unsupported,
+  hsbw,
+  unsupported,
+  setvsindex,
+  blend,
+  unsupported,
+  getstem,
+  getmask,
+  getmask,
+  rmoveto,
+  hmoveto,
+  getstem,
+  rcurveline,
+  rlinecurve,
+  vvcurveto,
+  hhcurveto,
+  unsupported,
+  unsupported,
+  vhcurveto,
+  hvcurveto,
+ }
+ local subactions={
+  [000]=dotsection,
+  [001]=getstem3,
+  [002]=getstem3,
+  [006]=seac,
+  [007]=sbw,
+  [012]=divide,
+  [016]=callothersubr,
+  [017]=pop,
+  [033]=setcurrentpoint,
+  [034]=hflex,
+  [035]=flex,
+  [036]=hflex1,
+  [037]=flex1,
+ }
+ local chars=setmetatableindex(function (t,k)
+  local v=char(k)
+  t[k]=v
+  return v
+ end)
+ local c_endchar=chars[14]
+ local encode={}
+ setmetatableindex(encode,function(t,i)
+  for i=-2048,-1130 do
+   t[i]=char(28,band(rshift(i,8),0xFF),band(i,0xFF))
+  end
+  for i=-1131,-108 do
+   local v=0xFB00-i-108
+   t[i]=char(band(rshift(v,8),0xFF),band(v,0xFF))
+  end
+  for i=-107,107 do
+   t[i]=chars[i+139]
+  end
+  for i=108,1131 do
+   local v=0xF700+i-108
+   t[i]=char(extract(v,8,8),extract(v,0,8))
+  end
+  for i=1132,2048 do
+   t[i]=char(28,band(rshift(i,8),0xFF),band(i,0xFF))
+  end
+  setmetatableindex(encode,function(t,k)
+   local r=round(k)
+   local v=rawget(t,r)
+   if v then
+    return v
+   end
+   local v1=floor(k)
+   local v2=floor((k-v1)*0x10000)
+   return char(255,extract(v1,8,8),extract(v1,0,8),extract(v2,8,8),extract(v2,0,8))
+  end)
+  return t[i]
+ end)
+ readers.cffencoder=encode
+ local function p_setvsindex()
+  local vsindex=stack[top]
+  updateregions(vsindex)
+  top=top-1
+ end
+ local function p_blend()
+  local n=stack[top]
+  top=top-1
+  if not axis then
+  elseif n==1 then
+   top=top-nofregions
+   local v=stack[top]
+   for r=1,nofregions do
+    v=v+stack[top+r]*factors[r]
+   end
+   stack[top]=round(v)
+  else
+   top=top-nofregions*n
+   local d=top
+   local k=top-n
+   for i=1,n do
+    k=k+1
+    local v=stack[k]
+    for r=1,nofregions do
+     v=v+stack[d+r]*factors[r]
+    end
+    stack[k]=round(v)
+    d=d+nofregions
+   end
+  end
+ end
+ local function p_getstem()
+  local n=0
+  if top%2~=0 then
+   n=1
+  end
+  if top>n then
+   stems=stems+idiv(top-n,2)
+  end
+ end
+ local function p_getmask()
+  local n=0
+  if top%2~=0 then
+   n=1
+  end
+  if top>n then
+   stems=stems+idiv(top-n,2)
+  end
+  if stems==0 then
+   return 0
+  elseif stems<=8 then
+   return 1
+  else
+   return idiv(stems+7,8)
+  end
+ end
+ local process
+ local function call(scope,list,bias) 
+  depth=depth+1
+  if top==0 then
+   showstate(formatters["unknown %s call %s"](scope,"?"))
+   top=0
+  else
+   local index=stack[top]+bias
+   top=top-1
+   if trace_charstrings then
+    showvalue(scope,index,true)
+   end
+   local tab=list[index]
+   if tab then
+    process(tab)
+   else
+    showstate(formatters["unknown %s call %s"](scope,index))
+    top=0
+   end
+  end
+  depth=depth-1
+ end
+ local justpass=false
+ process=function(tab)
+  local i=1
+  local n=#tab
+  while i<=n do
+   local t=tab[i]
+   if t>=32 then
+    top=top+1
+    if t<=246 then
+     stack[top]=t-139
+     i=i+1
+    elseif t<=250 then
+     stack[top]=t*256-63124+tab[i+1]
+     i=i+2
+    elseif t<=254 then
+     stack[top]=-t*256+64148-tab[i+1]
+     i=i+2
+    else
+     local n=0x100*tab[i+1]+tab[i+2]
+     if n>=0x8000 then
+      stack[top]=n-0x10000+(0x100*tab[i+3]+tab[i+4])/0xFFFF
+     else
+      stack[top]=n+(0x100*tab[i+3]+tab[i+4])/0xFFFF
+     end
+     i=i+5
+    end
+   elseif t==28 then
+    top=top+1
+    local n=0x100*tab[i+1]+tab[i+2]
+    if n>=0x8000 then
+     stack[top]=n-0x10000
+    else
+     stack[top]=n
+    end
+    i=i+3
+   elseif t==11 then 
+    if trace_charstrings then
+     showstate("return")
+    end
+    return
+   elseif t==10 then
+    call("local",locals,localbias) 
+    i=i+1
+   elseif t==14 then 
+    if width then
+    elseif top>0 then
+     width=stack[1]
+     if trace_charstrings then
+      showvalue("width",width)
+     end
+    else
+     width=true
+    end
+    if trace_charstrings then
+     showstate("endchar")
+    end
+    return
+   elseif t==29 then
+    call("global",globals,globalbias) 
+    i=i+1
+   elseif t==12 then
+    i=i+1
+    local t=tab[i]
+    if justpass then
+     if t>=34 and t<=37 then 
+      for i=1,top do
+       r=r+1;result[r]=encode[stack[i]]
+      end
+      r=r+1;result[r]=chars[12]
+      r=r+1;result[r]=chars[t]
+      top=0
+     else
+      local a=subactions[t]
+      if a then
+       a(t)
+      else
+       top=0
+      end
+     end
+    else
+     local a=subactions[t]
+     if a then
+      a(t)
+     else
+      if trace_charstrings then
+       showvalue("<subaction>",t)
+      end
+      top=0
+     end
+    end
+    i=i+1
+   elseif justpass then
+    if t==15 then
+     p_setvsindex()
+     i=i+1
+    elseif t==16 then
+     local s=p_blend() or 0
+     i=i+s+1
+    elseif t==1 or t==3 or t==18 or operation==23 then
+     p_getstem() 
+if true then
+     if top>0 then
+      for i=1,top do
+       r=r+1;result[r]=encode[stack[i]]
+      end
+      top=0
+     end
+     r=r+1;result[r]=chars[t]
+else
+ top=0
+end
+     i=i+1
+    elseif t==19 or t==20 then
+     local s=p_getmask() or 0 
+if true then
+     if top>0 then
+      for i=1,top do
+       r=r+1;result[r]=encode[stack[i]]
+      end
+      top=0
+     end
+     r=r+1;result[r]=chars[t]
+     for j=1,s do
+      i=i+1
+      r=r+1;result[r]=chars[tab[i]]
+     end
+else
+ i=i+s
+ top=0
+end
+     i=i+1
+    elseif t==9 then
+     top=0
+     i=i+1
+    elseif t==13 then
+     local s=hsbw() or 0
+     i=i+s+1
+    else
+     if top>0 then
+      for i=1,top do
+       r=r+1;result[r]=encode[stack[i]]
+      end
+      top=0
+     end
+     r=r+1;result[r]=chars[t]
+     i=i+1
+    end
+   else
+    local a=actions[t]
+    if a then
+     local s=a(t)
+     if s then
+      i=i+s+1
+     else
+      i=i+1
+     end
+    else
+     if trace_charstrings then
+      showvalue("<action>",t)
+     end
+     top=0
+     i=i+1
+    end
+   end
+  end
+ end
+ local function setbias(globals,locals,nobias)
+  if nobias then
+   return 0,0
+  else
+   local g=#globals
+   local l=#locals
+   return
+    ((g<1240 and 107) or (g<33900 and 1131) or 32768)+1,
+    ((l<1240 and 107) or (l<33900 and 1131) or 32768)+1
+  end
+ end
+ local function processshape(tab,index)
+  if not tab then
+   glyphs[index]={
+    boundingbox={ 0,0,0,0 },
+    width=0,
+    name=charset and charset[index] or nil,
+   }
+   return
+  end
+  tab=bytetable(tab)
+  x=0
+  y=0
+  width=false
+  r=0
+  top=0
+  stems=0
+  result={} 
+  xmin=0
+  xmax=0
+  ymin=0
+  ymax=0
+  checked=false
+  if trace_charstrings then
+   report("glyph: %i",index)
+   report("data : % t",tab)
+  end
+  if regions then
+   updateregions(vsindex)
+  end
+  process(tab)
+  local boundingbox={
+   round(xmin),
+   round(ymin),
+   round(xmax),
+   round(ymax),
+  }
+  if width==true or width==false then
+   width=defaultwidth
+  else
+   width=nominalwidth+width
+  end
+  local glyph=glyphs[index] 
+  if justpass then
+   r=r+1
+   result[r]=c_endchar
+   local stream=concat(result)
+   if glyph then
+    glyph.stream=stream
+   else
+    glyphs[index]={ stream=stream }
+   end
+  elseif glyph then
+   glyph.segments=keepcurve~=false and result or nil
+   glyph.boundingbox=boundingbox
+   if not glyph.width then
+    glyph.width=width
+   end
+   if charset and not glyph.name then
+    glyph.name=charset[index]
+   end
+  elseif keepcurve then
+   glyphs[index]={
+    segments=result,
+    boundingbox=boundingbox,
+    width=width,
+    name=charset and charset[index] or nil,
+   }
+  else
+   glyphs[index]={
+    boundingbox=boundingbox,
+    width=width,
+    name=charset and charset[index] or nil,
+   }
+  end
+  if trace_charstrings then
+   report("width      : %s",tostring(width))
+   report("boundingbox: % t",boundingbox)
+  end
+ end
+ startparsing=function(fontdata,data,streams)
+  reginit=false
+  axis=false
+  regions=data.regions
+  justpass=streams==true
+  if regions then
+   regions={ regions } 
+   axis=data.factors or false
+  end
+ end
+ stopparsing=function(fontdata,data)
+  stack={}
+  glyphs=false
+  result={}
+  top=0
+  locals=false
+  globals=false
+  strings=false
+ end
+ local function setwidths(private)
+  if not private then
+   return 0,0
+  end
+  local privatedata=private.data
+  if not privatedata then
+   return 0,0
+  end
+  return privatedata.nominalwidthx or 0,privatedata.defaultwidthx or 0
+ end
+ parsecharstrings=function(fontdata,data,glphs,doshapes,tversion,streams,nobias)
+  local dictionary=data.dictionaries[1]
+  local charstrings=dictionary.charstrings
+  keepcurve=doshapes
+  version=tversion
+  strings=data.strings
+  globals=data.routines or {}
+  locals=dictionary.subroutines or {}
+  charset=dictionary.charset
+  vsindex=dictionary.vsindex or 0
+  glyphs=glphs or {}
+  globalbias,localbias=setbias(globals,locals,nobias)
+  nominalwidth,defaultwidth=setwidths(dictionary.private)
+  if charstrings then
+   startparsing(fontdata,data,streams)
+   for index=1,#charstrings do
+    processshape(charstrings[index],index-1)
+   end
+   stopparsing(fontdata,data)
+  else
+   report("no charstrings")
+  end
+  return glyphs
+ end
+ parsecharstring=function(fontdata,data,dictionary,tab,glphs,index,doshapes,tversion,streams)
+  keepcurve=doshapes
+  version=tversion
+  strings=data.strings
+  globals=data.routines or {}
+  locals=dictionary.subroutines or {}
+  charset=false
+  vsindex=dictionary.vsindex or 0
+  glyphs=glphs or {}
+  justpass=streams==true
+  globalbias,localbias=setbias(globals,locals,nobias)
+  nominalwidth,defaultwidth=setwidths(dictionary.private)
+  processshape(tab,index-1)
+ end
+end
+local function readglobals(f,data)
+ local routines=readlengths(f)
+ for i=1,#routines do
+  routines[i]=readbytetable(f,routines[i])
+ end
+ data.routines=routines
+end
+local function readencodings(f,data)
+ data.encodings={}
+end
+local function readcharsets(f,data,dictionary)
+ local header=data.header
+ local strings=data.strings
+ local nofglyphs=data.nofglyphs
+ local charsetoffset=dictionary.charset
+ if charsetoffset and charsetoffset~=0 then
+  setposition(f,header.offset+charsetoffset)
+  local format=readbyte(f)
+  local charset={ [0]=".notdef" }
+  dictionary.charset=charset
+  if format==0 then
+   for i=1,nofglyphs do
+    charset[i]=strings[readushort(f)]
+   end
+  elseif format==1 or format==2 then
+   local readcount=format==1 and readbyte or readushort
+   local i=1
+   while i<=nofglyphs do
+    local sid=readushort(f)
+    local n=readcount(f)
+    for s=sid,sid+n do
+     charset[i]=strings[s]
+     i=i+1
+     if i>nofglyphs then
+      break
+     end
+    end
+   end
+  else
+   report("cff parser: unsupported charset format %a",format)
+  end
+ else
+  dictionary.nocharset=true
+  dictionary.charset=nil
+ end
+end
+local function readprivates(f,data)
+ local header=data.header
+ local dictionaries=data.dictionaries
+ local private=dictionaries[1].private
+ if private then
+  setposition(f,header.offset+private.offset)
+  private.data=readstring(f,private.size)
+ end
+end
+local function readlocals(f,data,dictionary)
+ local header=data.header
+ local private=dictionary.private
+ if private then
+  local subroutineoffset=private.data.subroutines
+  if subroutineoffset~=0 then
+   setposition(f,header.offset+private.offset+subroutineoffset)
+   local subroutines=readlengths(f)
+   for i=1,#subroutines do
+    subroutines[i]=readbytetable(f,subroutines[i])
+   end
+   dictionary.subroutines=subroutines
+   private.data.subroutines=nil
+  else
+   dictionary.subroutines={}
+  end
+ else
+  dictionary.subroutines={}
+ end
+end
+local function readcharstrings(f,data,what)
+ local header=data.header
+ local dictionaries=data.dictionaries
+ local dictionary=dictionaries[1]
+ local stringtype=dictionary.charstringtype
+ local offset=dictionary.charstrings
+ if type(offset)~="number" then
+ elseif stringtype==2 then
+  setposition(f,header.offset+offset)
+  local charstrings=readlengths(f,what=="cff2")
+  local nofglyphs=#charstrings
+  for i=1,nofglyphs do
+   charstrings[i]=readstring(f,charstrings[i])
+  end
+  data.nofglyphs=nofglyphs
+  dictionary.charstrings=charstrings
+ else
+  report("unsupported charstr type %i",stringtype)
+  data.nofglyphs=0
+  dictionary.charstrings={}
+ end
+end
+local function readcidprivates(f,data)
+ local header=data.header
+ local dictionaries=data.dictionaries[1].cid.dictionaries
+ for i=1,#dictionaries do
+  local dictionary=dictionaries[i]
+  local private=dictionary.private
+  if private then
+   setposition(f,header.offset+private.offset)
+   private.data=readstring(f,private.size)
+  end
+ end
+ parseprivates(data,dictionaries)
+end
+readers.parsecharstrings=parsecharstrings 
+local function readnoselect(f,fontdata,data,glyphs,doshapes,version,streams)
+ local dictionaries=data.dictionaries
+ local dictionary=dictionaries[1]
+ readglobals(f,data)
+ readcharstrings(f,data,version)
+ if version=="cff2" then
+  dictionary.charset=nil
+ else
+  readencodings(f,data)
+  readcharsets(f,data,dictionary)
+ end
+ readprivates(f,data)
+ parseprivates(data,data.dictionaries)
+ readlocals(f,data,dictionary)
+ startparsing(fontdata,data,streams)
+ parsecharstrings(fontdata,data,glyphs,doshapes,version,streams)
+ stopparsing(fontdata,data)
+end
+local function readfdselect(f,fontdata,data,glyphs,doshapes,version,streams)
+ local header=data.header
+ local dictionaries=data.dictionaries
+ local dictionary=dictionaries[1]
+ local cid=dictionary.cid
+ local cidselect=cid and cid.fdselect
+ readglobals(f,data)
+ readcharstrings(f,data,version)
+ if version~="cff2" then
+  readencodings(f,data)
+ end
+ local charstrings=dictionary.charstrings
+ local fdindex={}
+ local nofglyphs=data.nofglyphs
+ local maxindex=-1
+ setposition(f,header.offset+cidselect)
+ local format=readbyte(f)
+ if format==1 then
+  for i=0,nofglyphs do 
+   local index=readbyte(f)
+   fdindex[i]=index
+   if index>maxindex then
+    maxindex=index
+   end
+  end
+ elseif format==3 then
+  local nofranges=readushort(f)
+  local first=readushort(f)
+  local index=readbyte(f)
+  while true do
+   local last=readushort(f)
+   if index>maxindex then
+    maxindex=index
+   end
+   for i=first,last do
+    fdindex[i]=index
+   end
+   if last>=nofglyphs then
+    break
+   else
+    first=last+1
+    index=readbyte(f)
+   end
+  end
+ else
+ end
+ if maxindex>=0 then
+  local cidarray=cid.fdarray
+  if cidarray then
+   setposition(f,header.offset+cidarray)
+   local dictionaries=readlengths(f)
+   for i=1,#dictionaries do
+    dictionaries[i]=readstring(f,dictionaries[i])
+   end
+   parsedictionaries(data,dictionaries)
+   cid.dictionaries=dictionaries
+   readcidprivates(f,data)
+   for i=1,#dictionaries do
+    readlocals(f,data,dictionaries[i])
+   end
+   startparsing(fontdata,data,streams)
+   for i=1,#charstrings do
+    parsecharstring(fontdata,data,dictionaries[fdindex[i]+1],charstrings[i],glyphs,i,doshapes,version,streams)
+   end
+   stopparsing(fontdata,data)
+  else
+   report("no cid array")
+  end
+ end
+end
+local gotodatatable=readers.helpers.gotodatatable
+local function cleanup(data,dictionaries)
+end
+function readers.cff(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"cff",specification.details or specification.glyphs)
+ if tableoffset then
+  local header=readheader(f)
+  if header.major~=1 then
+   report("only version %s is supported for table %a",1,"cff")
+   return
+  end
+  local glyphs=fontdata.glyphs
+  local names=readfontnames(f)
+  local dictionaries=readtopdictionaries(f)
+  local strings=readstrings(f)
+  local data={
+   header=header,
+   names=names,
+   dictionaries=dictionaries,
+   strings=strings,
+   nofglyphs=fontdata.nofglyphs,
+  }
+  parsedictionaries(data,dictionaries,"cff")
+  local dic=dictionaries[1]
+  local cid=dic.cid
+  local cffinfo={
+   familyname=dic.familyname,
+   fullname=dic.fullname,
+   boundingbox=dic.boundingbox,
+   weight=dic.weight,
+   italicangle=dic.italicangle,
+   underlineposition=dic.underlineposition,
+   underlinethickness=dic.underlinethickness,
+   defaultwidth=dic.defaultwidthx,
+   nominalwidth=dic.nominalwidthx,
+   monospaced=dic.monospaced,
+  }
+  fontdata.cidinfo=cid and {
+   registry=cid.registry,
+   ordering=cid.ordering,
+   supplement=cid.supplement,
+  }
+  fontdata.cffinfo=cffinfo
+  local all=specification.shapes or specification.streams or false
+  if specification.glyphs or all then
+   if cid and cid.fdselect then
+    readfdselect(f,fontdata,data,glyphs,all,"cff",specification.streams)
+   else
+    readnoselect(f,fontdata,data,glyphs,all,"cff",specification.streams)
+   end
+  end
+  local private=dic.private
+  if private then
+   local data=private.data
+   if type(data)=="table" then
+    cffinfo.defaultwidth=data.defaultwidthx or cffinfo.defaultwidth
+    cffinfo.nominalwidth=data.nominalwidthx or cffinfo.nominalwidth
+    cffinfo.bluevalues=data.bluevalues
+    cffinfo.otherblues=data.otherblues
+    cffinfo.familyblues=data.familyblues
+    cffinfo.familyotherblues=data.familyotherblues
+    cffinfo.bluescale=data.bluescale
+    cffinfo.blueshift=data.blueshift
+    cffinfo.bluefuzz=data.bluefuzz
+    cffinfo.stdhw=data.stdhw
+    cffinfo.stdvw=data.stdvw
+   end
+  end
+  cleanup(data,dictionaries)
+ end
+end
+function readers.cff2(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"cff2",specification.glyphs)
+ if tableoffset then
+  local header=readheader(f)
+  if header.major~=2 then
+   report("only version %s is supported for table %a",2,"cff2")
+   return
+  end
+  local glyphs=fontdata.glyphs
+  local dictionaries={ readstring(f,header.dsize) }
+  local data={
+   header=header,
+   dictionaries=dictionaries,
+   nofglyphs=fontdata.nofglyphs,
+  }
+  parsedictionaries(data,dictionaries,"cff2")
+  local offset=dictionaries[1].vstore
+  if offset>0 then
+   local storeoffset=dictionaries[1].vstore+data.header.offset+2 
+   local regions,deltas=readers.helpers.readvariationdata(f,storeoffset,factors)
+   data.regions=regions
+   data.deltas=deltas
+  else
+   data.regions={}
+   data.deltas={}
+  end
+  data.factors=specification.factors
+  local cid=data.dictionaries[1].cid
+  local all=specification.shapes or specification.streams or false
+  if cid and cid.fdselect then
+   readfdselect(f,fontdata,data,glyphs,all,"cff2",specification.streams)
+  else
+   readnoselect(f,fontdata,data,glyphs,all,"cff2",specification.streams)
+  end
+  cleanup(data,dictionaries)
+ end
+end
+function readers.cffcheck(filename)
+ local f=io.open(filename,"rb")
+ if f then
+  local fontdata={
+   glyphs={},
+  }
+  local header=readheader(f)
+  if header.major~=1 then
+   report("only version %s is supported for table %a",1,"cff")
+   return
+  end
+  local names=readfontnames(f)
+  local dictionaries=readtopdictionaries(f)
+  local strings=readstrings(f)
+  local glyphs={}
+  local data={
+   header=header,
+   names=names,
+   dictionaries=dictionaries,
+   strings=strings,
+   glyphs=glyphs,
+   nofglyphs=0,
+  }
+  parsedictionaries(data,dictionaries,"cff")
+  local cid=data.dictionaries[1].cid
+  if cid and cid.fdselect then
+   readfdselect(f,fontdata,data,glyphs,false)
+  else
+   readnoselect(f,fontdata,data,glyphs,false)
+  end
+  return data
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-ttf']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local next,type,unpack=next,type,unpack
+local band,rshift=bit32.band,bit32.rshift
+local sqrt,round=math.sqrt,math.round
+local char,rep=string.char,string.rep
+local concat=table.concat
+local idiv=number.idiv
+local setmetatableindex=table.setmetatableindex
+local report=logs.reporter("otf reader","ttf")
+local trace_deltas=false
+local readers=fonts.handlers.otf.readers
+local streamreader=readers.streamreader
+local setposition=streamreader.setposition
+local getposition=streamreader.getposition
+local skipbytes=streamreader.skip
+local readbyte=streamreader.readcardinal1  
+local readushort=streamreader.readcardinal2  
+local readulong=streamreader.readcardinal4  
+local readchar=streamreader.readinteger1   
+local readshort=streamreader.readinteger2   
+local read2dot14=streamreader.read2dot14  
+local readinteger=streamreader.readinteger1
+local readcardinaltable=streamreader.readcardinaltable
+local readintegertable=streamreader.readintegertable
+directives.register("fonts.streamreader",function()
+ streamreader=utilities.streams
+ setposition=streamreader.setposition
+ getposition=streamreader.getposition
+ skipbytes=streamreader.skip
+ readbyte=streamreader.readcardinal1
+ readushort=streamreader.readcardinal2
+ readulong=streamreader.readcardinal4
+ readchar=streamreader.readinteger1
+ readshort=streamreader.readinteger2
+ read2dot14=streamreader.read2dot14
+ readinteger=streamreader.readinteger1
+ readcardinaltable=streamreader.readcardinaltable
+ readintegertable=streamreader.readintegertable
+end)
+local short=2
+local ushort=2
+local ulong=4
+local helpers=readers.helpers
+local gotodatatable=helpers.gotodatatable
+local function mergecomposites(glyphs,shapes)
+ local function merge(index,shape,components)
+  local contours={}
+  local points={}
+  local nofcontours=0
+  local nofpoints=0
+  local offset=0
+  local deltas=shape.deltas
+  for i=1,#components do
+   local component=components[i]
+   local subindex=component.index
+   local subshape=shapes[subindex]
+   local subcontours=subshape.contours
+   local subpoints=subshape.points
+   if not subcontours then
+    local subcomponents=subshape.components
+    if subcomponents then
+     subcontours,subpoints=merge(subindex,subshape,subcomponents)
+    end
+   end
+   if subpoints then
+    local matrix=component.matrix
+    local xscale=matrix[1]
+    local xrotate=matrix[2]
+    local yrotate=matrix[3]
+    local yscale=matrix[4]
+    local xoffset=matrix[5]
+    local yoffset=matrix[6]
+    local count=#subpoints
+    if xscale==1 and yscale==1 and xrotate==0 and yrotate==0 then
+     for i=1,count do
+      local p=subpoints[i]
+      nofpoints=nofpoints+1
+      points[nofpoints]={
+       p[1]+xoffset,
+       p[2]+yoffset,
+       p[3]
+      }
+     end
+    else
+     for i=1,count do
+      local p=subpoints[i]
+      local x=p[1]
+      local y=p[2]
+      nofpoints=nofpoints+1
+      points[nofpoints]={
+       xscale*x+xrotate*y+xoffset,
+       yscale*y+yrotate*x+yoffset,
+       p[3]
+      }
+     end
+    end
+    local subcount=#subcontours
+    if subcount==1 then
+     nofcontours=nofcontours+1
+     contours[nofcontours]=offset+subcontours[1]
+    else
+     for i=1,#subcontours do
+      nofcontours=nofcontours+1
+      contours[nofcontours]=offset+subcontours[i]
+     end
+    end
+    offset=offset+count
+   else
+    report("missing contours composite %s, component %s of %s, glyph %s",index,i,#components,subindex)
+   end
+  end
+  shape.points=points 
+  shape.contours=contours
+  shape.components=nil
+  return contours,points
+ end
+ for index=0,#glyphs-1 do
+  local shape=shapes[index]
+  if shape then
+   local components=shape.components
+   if components then
+    merge(index,shape,components)
+   end
+  end
+ end
+end
+local function readnothing(f)
+ return {
+  type="nothing",
+ }
+end
+local function curveto(m_x,m_y,l_x,l_y,r_x,r_y) 
+ return
+  l_x+2/3*(m_x-l_x),l_y+2/3*(m_y-l_y),
+  r_x+2/3*(m_x-r_x),r_y+2/3*(m_y-r_y),
+  r_x,r_y,"c"
+end
+local function applyaxis(glyph,shape,deltas,dowidth)
+ local points=shape.points
+ if points then
+  local nofpoints=#points
+  local h=nofpoints+2 
+  local l=nofpoints+1
+  local dw=0
+  local dl=0
+  for i=1,#deltas do
+   local deltaset=deltas[i]
+   local xvalues=deltaset.xvalues
+   local yvalues=deltaset.yvalues
+   local dpoints=deltaset.points
+   local factor=deltaset.factor
+   if dpoints then
+    local nofdpoints=#dpoints
+    for i=1,nofdpoints do
+     local d=dpoints[i]
+     local p=points[d]
+     if p then
+      if xvalues then
+       local x=xvalues[i]
+       if x and x~=0 then
+        p[1]=p[1]+factor*x
+       end
+      end
+      if yvalues then
+       local y=yvalues[i]
+       if y and y~=0 then
+        p[2]=p[2]+factor*y
+       end
+      end
+     elseif dowidth then
+      if d==h then
+       local x=xvalues[i]
+       if x then
+        dw=dw+factor*x
+       end
+      elseif d==l then
+       local x=xvalues[i]
+       if x then
+        dl=dl+factor*x
+       end
+      end
+     end
+    end
+   else
+    for i=1,nofpoints do
+     local p=points[i]
+     if xvalues then
+      local x=xvalues[i]
+      if x and x~=0 then
+       p[1]=p[1]+factor*x
+      end
+     end
+     if yvalues then
+      local y=yvalues[i]
+      if y and y~=0 then
+       p[2]=p[2]+factor*y
+      end
+     end
+    end
+    if dowidth then
+     local x=xvalues[h]
+     if x then
+      dw=dw+factor*x
+     end
+     local x=xvalues[l]
+     if x then
+      dl=dl+factor*x
+     end
+    end
+   end
+  end
+  if dowidth then
+   local width=glyph.width or 0
+   glyph.width=width+dw-dl
+  end
+ else
+  report("no points for glyph %a",glyph.name)
+ end
+end
+local quadratic=false
+local function contours2outlines_normal(glyphs,shapes)
+ for index=0,#glyphs-1 do
+  local shape=shapes[index]
+  if shape then
+   local glyph=glyphs[index]
+   local contours=shape.contours
+   local points=shape.points
+   if contours then
+    local nofcontours=#contours
+    local segments={}
+    local nofsegments=0
+    glyph.segments=segments
+    if nofcontours>0 then
+     local px=0
+     local py=0
+     local first=1
+     for i=1,nofcontours do
+      local last=contours[i]
+      if last>=first then
+       local first_pt=points[first]
+       local first_on=first_pt[3]
+       if first==last then
+        first_pt[3]="m" 
+        nofsegments=nofsegments+1
+        segments[nofsegments]=first_pt
+       else 
+        local first_on=first_pt[3]
+        local last_pt=points[last]
+        local last_on=last_pt[3]
+        local start=1
+        local control_pt=false
+        if first_on then
+         start=2
+        else
+         if last_on then
+          first_pt=last_pt
+         else
+          first_pt={ (first_pt[1]+last_pt[1])/2,(first_pt[2]+last_pt[2])/2,false }
+         end
+         control_pt=first_pt
+        end
+        local x=first_pt[1]
+        local y=first_pt[2]
+        if not done then
+         xmin=x
+         ymin=y
+         xmax=x
+         ymax=y
+         done=true
+        end
+        nofsegments=nofsegments+1
+        segments[nofsegments]={ x,y,"m" } 
+        if not quadratic then
+         px=x
+         py=y
+        end
+        local previous_pt=first_pt
+        for i=first,last do
+         local current_pt=points[i]
+         local current_on=current_pt[3]
+         local previous_on=previous_pt[3]
+         if previous_on then
+          if current_on then
+           local x,y=current_pt[1],current_pt[2]
+           nofsegments=nofsegments+1
+           segments[nofsegments]={ x,y,"l" } 
+           if not quadratic then
+            px,py=x,y
+           end
+          else
+           control_pt=current_pt
+          end
+         elseif current_on then
+          local x1=control_pt[1]
+          local y1=control_pt[2]
+          local x2=current_pt[1]
+          local y2=current_pt[2]
+          nofsegments=nofsegments+1
+          if quadratic then
+           segments[nofsegments]={ x1,y1,x2,y2,"q" } 
+          else
+           x1,y1,x2,y2,px,py=curveto(x1,y1,px,py,x2,y2)
+           segments[nofsegments]={ x1,y1,x2,y2,px,py,"c" } 
+          end
+          control_pt=false
+         else
+          local x2=(previous_pt[1]+current_pt[1])/2
+          local y2=(previous_pt[2]+current_pt[2])/2
+          local x1=control_pt[1]
+          local y1=control_pt[2]
+          nofsegments=nofsegments+1
+          if quadratic then
+           segments[nofsegments]={ x1,y1,x2,y2,"q" } 
+          else
+           x1,y1,x2,y2,px,py=curveto(x1,y1,px,py,x2,y2)
+           segments[nofsegments]={ x1,y1,x2,y2,px,py,"c" } 
+          end
+          control_pt=current_pt
+         end
+         previous_pt=current_pt
+        end
+        if first_pt==last_pt then
+        else
+         nofsegments=nofsegments+1
+         local x2=first_pt[1]
+         local y2=first_pt[2]
+         if not control_pt then
+          segments[nofsegments]={ x2,y2,"l" } 
+         elseif quadratic then
+          local x1=control_pt[1]
+          local y1=control_pt[2]
+          segments[nofsegments]={ x1,y1,x2,y2,"q" } 
+         else
+          local x1=control_pt[1]
+          local y1=control_pt[2]
+          x1,y1,x2,y2,px,py=curveto(x1,y1,px,py,x2,y2)
+          segments[nofsegments]={ x1,y1,x2,y2,px,py,"c" }
+         end
+        end
+       end
+      end
+      first=last+1
+     end
+    end
+   end
+  end
+ end
+end
+local function contours2outlines_shaped(glyphs,shapes,keepcurve)
+ for index=0,#glyphs-1 do
+  local shape=shapes[index]
+  if shape then
+   local glyph=glyphs[index]
+   local contours=shape.contours
+   local points=shape.points
+   if contours then
+    local nofcontours=#contours
+    local segments=keepcurve and {} or nil
+    local nofsegments=0
+    if keepcurve then
+     glyph.segments=segments
+    end
+    if nofcontours>0 then
+     local xmin,ymin,xmax,ymax,done=0,0,0,0,false
+     local px,py=0,0 
+     local first=1
+     for i=1,nofcontours do
+      local last=contours[i]
+      if last>=first then
+       local first_pt=points[first]
+       local first_on=first_pt[3]
+       if first==last then
+        if keepcurve then
+         first_pt[3]="m" 
+         nofsegments=nofsegments+1
+         segments[nofsegments]=first_pt
+        end
+       else 
+        local first_on=first_pt[3]
+        local last_pt=points[last]
+        local last_on=last_pt[3]
+        local start=1
+        local control_pt=false
+        if first_on then
+         start=2
+        else
+         if last_on then
+          first_pt=last_pt
+         else
+          first_pt={ (first_pt[1]+last_pt[1])/2,(first_pt[2]+last_pt[2])/2,false }
+         end
+         control_pt=first_pt
+        end
+        local x=first_pt[1]
+        local y=first_pt[2]
+        if not done then
+         xmin,ymin,xmax,ymax=x,y,x,y
+         done=true
+        else
+         if x<xmin then xmin=x elseif x>xmax then xmax=x end
+         if y<ymin then ymin=y elseif y>ymax then ymax=y end
+        end
+        if keepcurve then
+         nofsegments=nofsegments+1
+         segments[nofsegments]={ x,y,"m" } 
+        end
+        if not quadratic then
+         px=x
+         py=y
+        end
+        local previous_pt=first_pt
+        for i=first,last do
+         local current_pt=points[i]
+         local current_on=current_pt[3]
+         local previous_on=previous_pt[3]
+         if previous_on then
+          if current_on then
+           local x=current_pt[1]
+           local y=current_pt[2]
+           if x<xmin then xmin=x elseif x>xmax then xmax=x end
+           if y<ymin then ymin=y elseif y>ymax then ymax=y end
+           if keepcurve then
+            nofsegments=nofsegments+1
+            segments[nofsegments]={ x,y,"l" } 
+           end
+           if not quadratic then
+            px=x
+            py=y
+           end
+          else
+           control_pt=current_pt
+          end
+         elseif current_on then
+          local x1=control_pt[1]
+          local y1=control_pt[2]
+          local x2=current_pt[1]
+          local y2=current_pt[2]
+          if quadratic then
+           if x1<xmin then xmin=x1 elseif x1>xmax then xmax=x1 end
+           if y1<ymin then ymin=y1 elseif y1>ymax then ymax=y1 end
+           if keepcurve then
+            nofsegments=nofsegments+1
+            segments[nofsegments]={ x1,y1,x2,y2,"q" } 
+           end
+          else
+           x1,y1,x2,y2,px,py=curveto(x1,y1,px,py,x2,y2)
+           if x1<xmin then xmin=x1 elseif x1>xmax then xmax=x1 end
+           if y1<ymin then ymin=y1 elseif y1>ymax then ymax=y1 end
+           if x2<xmin then xmin=x2 elseif x2>xmax then xmax=x2 end
+           if y2<ymin then ymin=y2 elseif y2>ymax then ymax=y2 end
+           if px<xmin then xmin=px elseif px>xmax then xmax=px end
+           if py<ymin then ymin=py elseif py>ymax then ymax=py end
+           if keepcurve then
+            nofsegments=nofsegments+1
+            segments[nofsegments]={ x1,y1,x2,y2,px,py,"c" } 
+           end
+          end
+          control_pt=false
+         else
+          local x2=(previous_pt[1]+current_pt[1])/2
+          local y2=(previous_pt[2]+current_pt[2])/2
+          local x1=control_pt[1]
+          local y1=control_pt[2]
+          if quadratic then
+           if x1<xmin then xmin=x1 elseif x1>xmax then xmax=x1 end
+           if y1<ymin then ymin=y1 elseif y1>ymax then ymax=y1 end
+           if keepcurve then
+            nofsegments=nofsegments+1
+            segments[nofsegments]={ x1,y1,x2,y2,"q" } 
+           end
+          else
+           x1,y1,x2,y2,px,py=curveto(x1,y1,px,py,x2,y2)
+           if x1<xmin then xmin=x1 elseif x1>xmax then xmax=x1 end
+           if y1<ymin then ymin=y1 elseif y1>ymax then ymax=y1 end
+           if x2<xmin then xmin=x2 elseif x2>xmax then xmax=x2 end
+           if y2<ymin then ymin=y2 elseif y2>ymax then ymax=y2 end
+           if px<xmin then xmin=px elseif px>xmax then xmax=px end
+           if py<ymin then ymin=py elseif py>ymax then ymax=py end
+           if keepcurve then
+            nofsegments=nofsegments+1
+            segments[nofsegments]={ x1,y1,x2,y2,px,py,"c" } 
+           end
+          end
+          control_pt=current_pt
+         end
+         previous_pt=current_pt
+        end
+        if first_pt==last_pt then
+        elseif not control_pt then
+         if keepcurve then
+          nofsegments=nofsegments+1
+          segments[nofsegments]={ first_pt[1],first_pt[2],"l" } 
+         end
+        else
+         local x1=control_pt[1]
+         local y1=control_pt[2]
+         local x2=first_pt[1]
+         local y2=first_pt[2]
+         if x1<xmin then xmin=x1 elseif x1>xmax then xmax=x1 end
+         if y1<ymin then ymin=y1 elseif y1>ymax then ymax=y1 end
+         if quadratic then
+          if keepcurve then
+           nofsegments=nofsegments+1
+           segments[nofsegments]={ x1,y1,x2,y2,"q" } 
+          end
+         else
+          x1,y1,x2,y2,px,py=curveto(x1,y1,px,py,x2,y2)
+          if x2<xmin then xmin=x2 elseif x2>xmax then xmax=x2 end
+          if y2<ymin then ymin=y2 elseif y2>ymax then ymax=y2 end
+          if px<xmin then xmin=px elseif px>xmax then xmax=px end
+          if py<ymin then ymin=py elseif py>ymax then ymax=py end
+          if keepcurve then
+           nofsegments=nofsegments+1
+           segments[nofsegments]={ x1,y1,x2,y2,px,py,"c" } 
+          end
+         end
+        end
+       end
+      end
+      first=last+1
+     end
+     glyph.boundingbox={ round(xmin),round(ymin),round(xmax),round(ymax) }
+    end
+   end
+  end
+ end
+end
+local c_zero=char(0)
+local s_zero=char(0,0)
+local function toushort(n)
+ return char(band(rshift(n,8),0xFF),band(n,0xFF))
+end
+local function toshort(n)
+ if n<0 then
+  n=n+0x10000
+ end
+ return char(band(rshift(n,8),0xFF),band(n,0xFF))
+end
+local chars=setmetatableindex(function(t,k)
+ for i=0,255 do local v=char(i) t[i]=v end return t[k]
+end)
+local function repackpoints(glyphs,shapes)
+ local noboundingbox={ 0,0,0,0 }
+ local result={} 
+ local xpoints={} 
+ local ypoints={} 
+ for index=0,#glyphs-1 do
+  local shape=shapes[index]
+  if shape then
+   local r=0
+   local glyph=glyphs[index]
+   local contours=shape.contours
+   local nofcontours=contours and #contours or 0
+   local boundingbox=glyph.boundingbox or noboundingbox
+   r=r+1 result[r]=toshort(nofcontours)
+   r=r+1 result[r]=toshort(boundingbox[1]) 
+   r=r+1 result[r]=toshort(boundingbox[2]) 
+   r=r+1 result[r]=toshort(boundingbox[3]) 
+   r=r+1 result[r]=toshort(boundingbox[4]) 
+   if nofcontours>0 then
+    for i=1,nofcontours do
+     r=r+1 result[r]=toshort(contours[i]-1)
+    end
+    r=r+1 result[r]=s_zero 
+    local points=shape.points
+    local currentx=0
+    local currenty=0
+    local x=0
+    local y=0
+    local lastflag=nil
+    local nofflags=0
+    for i=1,#points do
+     local pt=points[i]
+     local px=pt[1]
+     local py=pt[2]
+     local fl=pt[3] and 0x01 or 0x00
+     if px==currentx then
+      fl=fl+0x10
+     else
+      local dx=round(px-currentx)
+      x=x+1
+      if dx<-255 or dx>255 then
+       xpoints[x]=toshort(dx)
+      elseif dx<0 then
+       fl=fl+0x02
+       xpoints[x]=chars[-dx]
+      elseif dx>0 then
+       fl=fl+0x12
+       xpoints[x]=chars[dx]
+      else
+       fl=fl+0x02
+       xpoints[x]=c_zero
+      end
+     end
+     if py==currenty then
+      fl=fl+0x20
+     else
+      local dy=round(py-currenty)
+      y=y+1
+      if dy<-255 or dy>255 then
+       ypoints[y]=toshort(dy)
+      elseif dy<0 then
+       fl=fl+0x04
+       ypoints[y]=chars[-dy]
+      elseif dy>0 then
+       fl=fl+0x24
+       ypoints[y]=chars[dy]
+      else
+       fl=fl+0x04
+       ypoints[y]=c_zero
+      end
+     end
+     currentx=px
+     currenty=py
+     if lastflag==fl then
+      if nofflags==255 then
+       lastflag=lastflag+0x08
+       r=r+1 result[r]=char(lastflag,nofflags-1)
+       nofflags=1
+       lastflag=fl
+      else
+       nofflags=nofflags+1
+      end
+     else 
+      if nofflags==1 then
+       r=r+1 result[r]=chars[lastflag]
+      elseif nofflags==2 then
+       r=r+1 result[r]=char(lastflag,lastflag)
+      elseif nofflags>2 then
+       lastflag=lastflag+0x08
+       r=r+1 result[r]=char(lastflag,nofflags-1)
+      end
+      nofflags=1
+      lastflag=fl
+     end
+    end
+    if nofflags==1 then
+     r=r+1 result[r]=chars[lastflag]
+    elseif nofflags==2 then
+     r=r+1 result[r]=char(lastflag,lastflag)
+    elseif nofflags>2 then
+     lastflag=lastflag+0x08
+     r=r+1 result[r]=char(lastflag,nofflags-1)
+    end
+    r=r+1 result[r]=concat(xpoints,"",1,x)
+    r=r+1 result[r]=concat(ypoints,"",1,y)
+   end
+   local stream=concat(result,"",1,r)
+   local length=#stream
+   local padding=idiv(length+3,4)*4-length
+   if padding>0 then
+    if padding==1 then
+     padding="\0"
+    elseif padding==2 then
+     padding="\0\0"
+    else
+     padding="\0\0\0"
+    end
+    padding=stream..padding
+   end
+   glyph.stream=stream
+  end
+ end
+end
+local flags={}
+local function readglyph(f,nofcontours) 
+ local points={}
+ local contours={} 
+ for i=1,nofcontours do
+  contours[i]=readshort(f)+1
+ end
+ local nofpoints=contours[nofcontours]
+ local nofinstructions=readushort(f)
+ skipbytes(f,nofinstructions)
+ local i=1
+ while i<=nofpoints do
+  local flag=readbyte(f)
+  flags[i]=flag
+  if band(flag,0x08)~=0 then
+   local n=readbyte(f)
+   if n==1 then
+    i=i+1
+    flags[i]=flag
+   else
+    for j=1,n do
+     i=i+1
+     flags[i]=flag
+    end
+   end
+  end
+  i=i+1
+ end
+ local x=0
+ for i=1,nofpoints do
+  local flag=flags[i]
+  if band(flag,0x02)~=0 then
+   if band(flag,0x10)~=0 then
+    x=x+readbyte(f)
+   else
+    x=x-readbyte(f)
+   end
+  elseif band(flag,0x10)~=0 then
+  else
+   x=x+readshort(f)
+  end
+  points[i]={ x,0,band(flag,0x01)~=0 }
+ end
+ local y=0
+ for i=1,nofpoints do
+  local flag=flags[i]
+  if band(flag,0x04)~=0 then
+   if band(flag,0x20)~=0 then
+    y=y+readbyte(f)
+   else
+    y=y-readbyte(f)
+   end
+  elseif band(flag,0x20)~=0 then
+  else
+   y=y+readshort(f)
+  end
+  points[i][2]=y
+ end
+ return {
+  type="glyph",
+  points=points,
+  contours=contours,
+  nofpoints=nofpoints,
+ }
+end
+local function readcomposite(f)
+ local components={}
+ local nofcomponents=0
+ local instructions=false
+ while true do
+  local flags=readushort(f)
+  local index=readushort(f)
+  local f_xyarg=band(flags,0x0002)~=0
+  local f_offset=band(flags,0x0800)~=0
+  local xscale=1
+  local xrotate=0
+  local yrotate=0
+  local yscale=1
+  local xoffset=0
+  local yoffset=0
+  local base=false
+  local reference=false
+  if f_xyarg then
+   if band(flags,0x0001)~=0 then 
+    xoffset=readshort(f)
+    yoffset=readshort(f)
+   else
+    xoffset=readchar(f) 
+    yoffset=readchar(f) 
+   end
+  else
+   if band(flags,0x0001)~=0 then 
+    base=readshort(f)
+    reference=readshort(f)
+   else
+    base=readchar(f) 
+    reference=readchar(f) 
+   end
+  end
+  if band(flags,0x0008)~=0 then 
+   xscale=read2dot14(f)
+   yscale=xscale
+   if f_xyarg and f_offset then
+    xoffset=xoffset*xscale
+    yoffset=yoffset*yscale
+   end
+  elseif band(flags,0x0040)~=0 then 
+   xscale=read2dot14(f)
+   yscale=read2dot14(f)
+   if f_xyarg and f_offset then
+    xoffset=xoffset*xscale
+    yoffset=yoffset*yscale
+   end
+  elseif band(flags,0x0080)~=0 then 
+   xscale=read2dot14(f)
+   xrotate=read2dot14(f)
+   yrotate=read2dot14(f)
+   yscale=read2dot14(f)
+   if f_xyarg and f_offset then
+    xoffset=xoffset*sqrt(xscale^2+xrotate^2)
+    yoffset=yoffset*sqrt(yrotate^2+yscale^2)
+   end
+  end
+  nofcomponents=nofcomponents+1
+  components[nofcomponents]={
+   index=index,
+   usemine=band(flags,0x0200)~=0,
+   round=band(flags,0x0006)~=0,
+   base=base,
+   reference=reference,
+   matrix={ xscale,xrotate,yrotate,yscale,xoffset,yoffset },
+  }
+  if band(flags,0x0100)~=0 then
+   instructions=true
+  end
+  if band(flags,0x0020)==0 then 
+   break
+  end
+ end
+ return {
+  type="composite",
+  components=components,
+ }
+end
+function readers.loca(f,fontdata,specification)
+ if specification.glyphs then
+  local datatable=fontdata.tables.loca
+  if datatable then
+   local offset=fontdata.tables.glyf.offset
+   local format=fontdata.fontheader.indextolocformat
+   local profile=fontdata.maximumprofile
+   local nofglyphs=profile and profile.nofglyphs
+   local locations={}
+   setposition(f,datatable.offset)
+   if format==1 then
+    if not nofglyphs then
+     nofglyphs=idiv(datatable.length,4)-1
+    end
+    for i=0,nofglyphs do
+     locations[i]=offset+readulong(f)
+    end
+    fontdata.nofglyphs=nofglyphs
+   else
+    if not nofglyphs then
+     nofglyphs=idiv(datatable.length,2)-1
+    end
+    for i=0,nofglyphs do
+     locations[i]=offset+readushort(f)*2
+    end
+   end
+   fontdata.nofglyphs=nofglyphs
+   fontdata.locations=locations
+  end
+ end
+end
+function readers.glyf(f,fontdata,specification) 
+ local tableoffset=gotodatatable(f,fontdata,"glyf",specification.glyphs)
+ if tableoffset then
+  local locations=fontdata.locations
+  if locations then
+   local glyphs=fontdata.glyphs
+   local nofglyphs=fontdata.nofglyphs
+   local filesize=fontdata.filesize
+   local nothing={ 0,0,0,0 }
+   local shapes={}
+   local loadshapes=specification.shapes or specification.instance or specification.streams
+   for index=0,nofglyphs-1 do
+    local location=locations[index]
+    local length=locations[index+1]-location
+    if location>=filesize then
+     report("discarding %s glyphs due to glyph location bug",nofglyphs-index+1)
+     fontdata.nofglyphs=index-1
+     fontdata.badfont=true
+     break
+    elseif length>0 then
+     setposition(f,location)
+     local nofcontours=readshort(f)
+     glyphs[index].boundingbox={
+      readshort(f),
+      readshort(f),
+      readshort(f),
+      readshort(f),
+     }
+     if not loadshapes then
+     elseif nofcontours==0 then
+      shapes[index]=readnothing(f)
+     elseif nofcontours>0 then
+      shapes[index]=readglyph(f,nofcontours)
+     else
+      shapes[index]=readcomposite(f,nofcontours)
+     end
+    else
+     if loadshapes then
+      shapes[index]=readnothing(f)
+     end
+     glyphs[index].boundingbox=nothing
+    end
+   end
+   if loadshapes then
+    if readers.gvar then
+     readers.gvar(f,fontdata,specification,glyphs,shapes)
+    end
+    mergecomposites(glyphs,shapes)
+    if specification.instance then
+     if specification.streams then
+      repackpoints(glyphs,shapes)
+     else
+      contours2outlines_shaped(glyphs,shapes,specification.shapes)
+     end
+    elseif specification.shapes then
+     if specification.streams then
+      repackpoints(glyphs,shapes)
+     else
+      contours2outlines_normal(glyphs,shapes)
+     end
+    elseif specification.streams then
+     repackpoints(glyphs,shapes)
+    end
+   end
+  end
+ end
+end
+local function readtuplerecord(f,nofaxis)
+ local record={}
+ for i=1,nofaxis do
+  record[i]=read2dot14(f)
+ end
+ return record
+end
+local function readpoints(f)
+ local count=readbyte(f)
+ if count==0 then
+  return nil,0 
+ else
+  if count<128 then
+  elseif band(count,0x80)~=0 then
+   count=band(count,0x7F)*256+readbyte(f)
+  else
+  end
+  local points={}
+  local p=0
+  local n=1 
+  while p<count do
+   local control=readbyte(f)
+   local runreader=band(control,0x80)~=0 and readushort or readbyte
+   local runlength=band(control,0x7F)
+   for i=1,runlength+1 do
+    n=n+runreader(f)
+    p=p+1
+    points[p]=n
+   end
+  end
+  return points,p
+ end
+end
+local function readdeltas(f,nofpoints)
+ local deltas={}
+ local p=0
+ local z=0
+ while nofpoints>0 do
+  local control=readbyte(f)
+if not control then
+ break
+end
+  local allzero=band(control,0x80)~=0
+  local runlength=band(control,0x3F)+1
+  if allzero then
+   z=z+runlength
+  else
+   local runreader=band(control,0x40)~=0 and readshort or readinteger
+   if z>0 then
+    for i=1,z do
+     p=p+1
+     deltas[p]=0
+    end
+    z=0
+   end
+   for i=1,runlength do
+    p=p+1
+    deltas[p]=runreader(f)
+   end
+  end
+  nofpoints=nofpoints-runlength
+ end
+ if p>0 then
+  return deltas
+ else
+ end
+end
+local function readdeltas(f,nofpoints)
+ local deltas={}
+ local p=0
+ while nofpoints>0 do
+  local control=readbyte(f)
+  if control then
+   local allzero=band(control,0x80)~=0
+   local runlength=band(control,0x3F)+1
+   if allzero then
+    for i=1,runlength do
+     p=p+1
+     deltas[p]=0
+    end
+   else
+    local runreader=band(control,0x40)~=0 and readshort or readinteger
+    for i=1,runlength do
+     p=p+1
+     deltas[p]=runreader(f)
+    end
+   end
+   nofpoints=nofpoints-runlength
+  else
+   break
+  end
+ end
+ if p>0 then
+  return deltas
+ else
+ end
+end
+function readers.gvar(f,fontdata,specification,glyphdata,shapedata)
+ local instance=specification.instance
+ if not instance then
+  return
+ end
+ local factors=specification.factors
+ if not factors then
+  return
+ end
+ local tableoffset=gotodatatable(f,fontdata,"gvar",specification.variable or specification.shapes)
+ if tableoffset then
+  local version=readulong(f) 
+  local nofaxis=readushort(f)
+  local noftuples=readushort(f)
+  local tupleoffset=tableoffset+readulong(f)
+  local nofglyphs=readushort(f)
+  local flags=readushort(f)
+  local dataoffset=tableoffset+readulong(f)
+  local data={}
+  local tuples={}
+  local glyphdata=fontdata.glyphs
+  local dowidth=not fontdata.variabledata.hvarwidths
+  if band(flags,0x0001)~=0  then
+   for i=1,nofglyphs+1 do
+    data[i]=dataoffset+readulong(f)
+   end
+  else
+   for i=1,nofglyphs+1 do
+    data[i]=dataoffset+2*readushort(f)
+   end
+  end
+  if noftuples>0 then
+   setposition(f,tupleoffset)
+   for i=1,noftuples do
+    tuples[i]=readtuplerecord(f,nofaxis)
+   end
+  end
+  local nextoffset=false
+  local startoffset=data[1]
+  for i=1,nofglyphs do 
+   nextoffset=data[i+1]
+   local glyph=glyphdata[i-1]
+   local name=trace_deltas and glyph.name
+   if startoffset==nextoffset then
+    if name then
+     report("no deltas for glyph %a",name)
+    end
+   else
+    local shape=shapedata[i-1] 
+    if not shape then
+     if name then
+      report("no shape for glyph %a",name)
+     end
+    else
+     lastoffset=startoffset
+     setposition(f,startoffset)
+     local flags=readushort(f)
+     local count=band(flags,0x0FFF)
+     local offset=startoffset+readushort(f) 
+     local deltas={}
+     local allpoints=(shape.nofpoints or 0) 
+     local shared=false
+     local nofshared=0
+     if band(flags,0x8000)~=0  then
+      local current=getposition(f)
+      setposition(f,offset)
+      shared,nofshared=readpoints(f)
+      offset=getposition(f)
+      setposition(f,current)
+     end
+     for j=1,count do
+      local size=readushort(f) 
+      local flags=readushort(f)
+      local index=band(flags,0x0FFF)
+      local haspeak=band(flags,0x8000)~=0
+      local intermediate=band(flags,0x4000)~=0
+      local private=band(flags,0x2000)~=0
+      local peak=nil
+      local start=nil
+      local stop=nil
+      local xvalues=nil
+      local yvalues=nil
+      local points=shared 
+      local nofpoints=nofshared
+      if haspeak then
+       peak=readtuplerecord(f,nofaxis)
+      else
+       if index+1>#tuples then
+        report("error, bad tuple index",index)
+       end
+       peak=tuples[index+1] 
+      end
+      if intermediate then
+       start=readtuplerecord(f,nofaxis)
+       stop=readtuplerecord(f,nofaxis)
+      end
+      if size>0 then
+       local current=getposition(f)
+       setposition(f,offset)
+       if private then
+        points,nofpoints=readpoints(f)
+       end 
+       if nofpoints==0 then
+        nofpoints=allpoints+4
+       end
+       if nofpoints>0 then
+        xvalues=readdeltas(f,nofpoints)
+        yvalues=readdeltas(f,nofpoints)
+       end
+       offset=offset+size
+       setposition(f,current)
+      end
+      if not xvalues and not yvalues then
+       points=nil
+      end
+      local s=1
+      for i=1,nofaxis do
+       local f=factors[i]
+       local peak=peak  and peak [i] or 0
+       local start=start and start[i] or (peak<0 and peak or 0)
+       local stop=stop  and stop [i] or (peak>0 and peak or 0)
+       if start>peak or peak>stop then
+       elseif start<0 and stop>0 and peak~=0 then
+       elseif peak==0 then
+       elseif f<start or f>stop then
+        s=0
+        break
+       elseif f<peak then
+        s=s*(f-start)/(peak-start)
+       elseif f>peak then
+        s=s*(stop-f)/(stop-peak)
+       else
+       end
+      end
+      if s==0 then
+       if name then
+        report("no deltas applied for glyph %a",name)
+       end
+      else
+       deltas[#deltas+1]={
+        factor=s,
+        points=points,
+        xvalues=xvalues,
+        yvalues=yvalues,
+       }
+      end
+     end
+     if shape.type=="glyph" then
+      applyaxis(glyph,shape,deltas,dowidth)
+     else
+      shape.deltas=deltas
+     end
+    end
+   end
+   startoffset=nextoffset
+  end
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-dsp']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local next,type,tonumber=next,type,tonumber
+local band=bit32.band
+local extract=bit32.extract
+local bor=bit32.bor
+local lshift=bit32.lshift
+local rshift=bit32.rshift
+local gsub=string.gsub
+local lower=string.lower
+local sub=string.sub
+local strip=string.strip
+local tohash=table.tohash
+local concat=table.concat
+local copy=table.copy
+local reversed=table.reversed
+local sort=table.sort
+local insert=table.insert
+local round=math.round
+local settings_to_hash=utilities.parsers.settings_to_hash_colon_too
+local setmetatableindex=table.setmetatableindex
+local formatters=string.formatters
+local sortedkeys=table.sortedkeys
+local sortedhash=table.sortedhash
+local sequenced=table.sequenced
+local report=logs.reporter("otf reader")
+local readers=fonts.handlers.otf.readers
+local streamreader=readers.streamreader
+local setposition=streamreader.setposition
+local getposition=streamreader.getposition
+local readuinteger=streamreader.readcardinal1
+local readushort=streamreader.readcardinal2
+local readulong=streamreader.readcardinal4
+local readinteger=streamreader.readinteger1
+local readshort=streamreader.readinteger2
+local readstring=streamreader.readstring
+local readtag=streamreader.readtag
+local readbytes=streamreader.readbytes
+local readfixed=streamreader.readfixed4
+local read2dot14=streamreader.read2dot14
+local skipshort=streamreader.skipshort
+local skipbytes=streamreader.skip
+local readbytetable=streamreader.readbytetable
+local readbyte=streamreader.readbyte
+local readcardinaltable=streamreader.readcardinaltable
+local readintegertable=streamreader.readintegertable
+local readfword=readshort
+local short=2
+local ushort=2
+local ulong=4
+directives.register("fonts.streamreader",function()
+ streamreader=utilities.streams
+ setposition=streamreader.setposition
+ getposition=streamreader.getposition
+ readuinteger=streamreader.readcardinal1
+ readushort=streamreader.readcardinal2
+ readulong=streamreader.readcardinal4
+ readinteger=streamreader.readinteger1
+ readshort=streamreader.readinteger2
+ readstring=streamreader.readstring
+ readtag=streamreader.readtag
+ readbytes=streamreader.readbytes
+ readfixed=streamreader.readfixed4
+ read2dot14=streamreader.read2dot14
+ skipshort=streamreader.skipshort
+ skipbytes=streamreader.skip
+ readbytetable=streamreader.readbytetable
+ readbyte=streamreader.readbyte
+ readcardinaltable=streamreader.readcardinaltable
+ readintegertable=streamreader.readintegertable
+ readfword=readshort
+end)
+local gsubhandlers={}
+local gposhandlers={}
+readers.gsubhandlers=gsubhandlers
+readers.gposhandlers=gposhandlers
+local helpers=readers.helpers
+local gotodatatable=helpers.gotodatatable
+local setvariabledata=helpers.setvariabledata
+local lookupidoffset=-1 
+local classes={
+ "base",
+ "ligature",
+ "mark",
+ "component",
+}
+local gsubtypes={
+ "single",
+ "multiple",
+ "alternate",
+ "ligature",
+ "context",
+ "chainedcontext",
+ "extension",
+ "reversechainedcontextsingle",
+}
+local gpostypes={
+ "single",
+ "pair",
+ "cursive",
+ "marktobase",
+ "marktoligature",
+ "marktomark",
+ "context",
+ "chainedcontext",
+ "extension",
+}
+local chaindirections={
+ context=0,
+ chainedcontext=1,
+ reversechainedcontextsingle=-1,
+}
+local function setmetrics(data,where,tag,d)
+ local w=data[where]
+ if w then
+  local v=w[tag]
+  if v then
+   w[tag]=v+d
+  end
+ end
+end
+local variabletags={
+ hasc=function(data,d) setmetrics(data,"windowsmetrics","typoascender",d) end,
+ hdsc=function(data,d) setmetrics(data,"windowsmetrics","typodescender",d) end,
+ hlgp=function(data,d) setmetrics(data,"windowsmetrics","typolinegap",d) end,
+ hcla=function(data,d) setmetrics(data,"windowsmetrics","winascent",d) end,
+ hcld=function(data,d) setmetrics(data,"windowsmetrics","windescent",d) end,
+ vasc=function(data,d) setmetrics(data,"vhea not done","ascent",d) end,
+ vdsc=function(data,d) setmetrics(data,"vhea not done","descent",d) end,
+ vlgp=function(data,d) setmetrics(data,"vhea not done","linegap",d) end,
+ xhgt=function(data,d) setmetrics(data,"windowsmetrics","xheight",d) end,
+ cpht=function(data,d) setmetrics(data,"windowsmetrics","capheight",d) end,
+ sbxs=function(data,d) setmetrics(data,"windowsmetrics","subscriptxsize",d) end,
+ sbys=function(data,d) setmetrics(data,"windowsmetrics","subscriptysize",d) end,
+ sbxo=function(data,d) setmetrics(data,"windowsmetrics","subscriptxoffset",d) end,
+ sbyo=function(data,d) setmetrics(data,"windowsmetrics","subscriptyoffset",d) end,
+ spxs=function(data,d) setmetrics(data,"windowsmetrics","superscriptxsize",d) end,
+ spys=function(data,d) setmetrics(data,"windowsmetrics","superscriptysize",d) end,
+ spxo=function(data,d) setmetrics(data,"windowsmetrics","superscriptxoffset",d) end,
+ spyo=function(data,d) setmetrics(data,"windowsmetrics","superscriptyoffset",d) end,
+ strs=function(data,d) setmetrics(data,"windowsmetrics","strikeoutsize",d) end,
+ stro=function(data,d) setmetrics(data,"windowsmetrics","strikeoutpos",d) end,
+ unds=function(data,d) setmetrics(data,"postscript","underlineposition",d) end,
+ undo=function(data,d) setmetrics(data,"postscript","underlinethickness",d) end,
+}
+local read_cardinal={
+ streamreader.readcardinal1,
+ streamreader.readcardinal2,
+ streamreader.readcardinal3,
+ streamreader.readcardinal4,
+}
+local read_integer={
+ streamreader.readinteger1,
+ streamreader.readinteger2,
+ streamreader.readinteger3,
+ streamreader.readinteger4,
+}
+local lookupnames={
+ gsub={
+  single="gsub_single",
+  multiple="gsub_multiple",
+  alternate="gsub_alternate",
+  ligature="gsub_ligature",
+  context="gsub_context",
+  chainedcontext="gsub_contextchain",
+  reversechainedcontextsingle="gsub_reversecontextchain",
+ },
+ gpos={
+  single="gpos_single",
+  pair="gpos_pair",
+  cursive="gpos_cursive",
+  marktobase="gpos_mark2base",
+  marktoligature="gpos_mark2ligature",
+  marktomark="gpos_mark2mark",
+  context="gpos_context",
+  chainedcontext="gpos_contextchain",
+ }
+}
+local lookupflags=setmetatableindex(function(t,k)
+ local v={
+  band(k,0x0008)~=0 and true or false,
+  band(k,0x0004)~=0 and true or false,
+  band(k,0x0002)~=0 and true or false,
+  band(k,0x0001)~=0 and true or false,
+ }
+ t[k]=v
+ return v
+end)
+local function axistofactors(str)
+ local t=settings_to_hash(str)
+ for k,v in next,t do
+  t[k]=tonumber(v) or v 
+ end
+ return t
+end
+local hash=table.setmetatableindex(function(t,k)
+ local v=sequenced(axistofactors(k),",")
+ t[k]=v
+ return v
+end)
+helpers.normalizedaxishash=hash
+local cleanname=fonts.names and fonts.names.cleanname or function(name)
+ return name and (gsub(lower(name),"[^%a%d]","")) or nil
+end
+helpers.cleanname=cleanname
+function helpers.normalizedaxis(str)
+ return hash[str] or str
+end
+local function getaxisscale(segments,minimum,default,maximum,user)
+ if not minimum or not default or not maximum then
+  return false
+ end
+ if user<minimum then
+  user=minimum
+ elseif user>maximum then
+  user=maximum
+ end
+ if user<default then
+  default=- (default-user)/(default-minimum)
+ elseif user>default then
+  default=(user-default)/(maximum-default)
+ else
+  default=0
+ end
+ if not segments then
+  return default
+ end
+ local e
+ for i=1,#segments do
+  local s=segments[i]
+  if type(s)~="number" then
+   report("using default axis scale")
+   return default
+  elseif s[1]>=default then
+   if s[2]==default then
+    return default
+   else
+    e=i
+    break
+   end
+  end
+ end
+ if e then
+  local b=segments[e-1]
+  local e=segments[e]
+  return b[2]+(e[2]-b[2])*(default-b[1])/(e[1]-b[1])
+ else
+  return false
+ end
+end
+local function getfactors(data,instancespec)
+ if instancespec==true then
+ elseif type(instancespec)~="string" or instancespec=="" then
+  return
+ end
+ local variabledata=data.variabledata
+ if not variabledata then
+  return
+ end
+ local instances=variabledata.instances
+ local axis=variabledata.axis
+ local segments=variabledata.segments
+ if instances and axis then
+  local values
+  if instancespec==true then
+   values={}
+   for i=1,#axis do
+    values[i]={
+     value=axis[i].default,
+    }
+   end
+  else
+   for i=1,#instances do
+    local instance=instances[i]
+    if cleanname(instance.subfamily)==instancespec then
+     values=instance.values
+     break
+    end
+   end
+  end
+  if values then
+   local factors={}
+   for i=1,#axis do
+    local a=axis[i]
+    factors[i]=getaxisscale(segments,a.minimum,a.default,a.maximum,values[i].value)
+   end
+   return factors
+  end
+  local values=axistofactors(hash[instancespec] or instancespec)
+  if values then
+   local factors={}
+   for i=1,#axis do
+    local a=axis[i]
+    local d=a.default
+    factors[i]=getaxisscale(segments,a.minimum,d,a.maximum,values[a.name or a.tag] or d)
+   end
+   return factors
+  end
+ end
+end
+local function getscales(regions,factors)
+ local scales={}
+ for i=1,#regions do
+  local region=regions[i]
+  local s=1
+  for j=1,#region do
+   local axis=region[j]
+   local f=factors[j]
+   local start=axis.start
+   local peak=axis.peak
+   local stop=axis.stop
+   if start>peak or peak>stop then
+   elseif start<0 and stop>0 and peak~=0 then
+   elseif peak==0 then
+   elseif f<start or f>stop then
+    s=0
+    break
+   elseif f<peak then
+    s=s*(f-start)/(peak-start)
+   elseif f>peak then
+    s=s*(stop-f)/(stop-peak)
+   else
+   end
+  end
+  scales[i]=s
+ end
+ return scales
+end
+helpers.getaxisscale=getaxisscale
+helpers.getfactors=getfactors
+helpers.getscales=getscales
+helpers.axistofactors=axistofactors
+local function readvariationdata(f,storeoffset,factors) 
+ local position=getposition(f)
+ setposition(f,storeoffset)
+ local format=readushort(f)
+ local regionoffset=storeoffset+readulong(f)
+ local nofdeltadata=readushort(f)
+ local deltadata=readcardinaltable(f,nofdeltadata,ulong)
+ setposition(f,regionoffset)
+ local nofaxis=readushort(f)
+ local nofregions=readushort(f)
+ local regions={}
+ for i=1,nofregions do 
+  local t={}
+  for i=1,nofaxis do
+   t[i]={ 
+    start=read2dot14(f),
+    peak=read2dot14(f),
+    stop=read2dot14(f),
+   }
+  end
+  regions[i]=t
+ end
+ if factors then
+  for i=1,nofdeltadata do
+   setposition(f,storeoffset+deltadata[i])
+   local nofdeltasets=readushort(f)
+   local nofshorts=readushort(f)
+   local nofregions=readushort(f)
+   local usedregions={}
+   local deltas={}
+   for i=1,nofregions do
+    usedregions[i]=regions[readushort(f)+1]
+   end
+   for i=1,nofdeltasets do
+    local t=readintegertable(f,nofshorts,short)
+    for i=nofshorts+1,nofregions do
+     t[i]=readinteger(f)
+    end
+    deltas[i]=t
+   end
+   deltadata[i]={
+    regions=usedregions,
+    deltas=deltas,
+    scales=factors and getscales(usedregions,factors) or nil,
+   }
+  end
+ end
+ setposition(f,position)
+ return regions,deltadata
+end
+helpers.readvariationdata=readvariationdata
+local function readcoverage(f,offset,simple)
+ setposition(f,offset)
+ local coverageformat=readushort(f)
+ if coverageformat==1 then
+  local nofcoverage=readushort(f)
+  if simple then
+   if nofcoverage==1 then
+    return { readushort(f) }
+   elseif nofcoverage==2 then
+    return { readushort(f),readushort(f) }
+   else
+    return readcardinaltable(f,nofcoverage,ushort)
+   end
+  elseif nofcoverage==1 then
+   return { [readushort(f)]=0 }
+  elseif nofcoverage==2 then
+   return { [readushort(f)]=0,[readushort(f)]=1 }
+  else
+   local coverage={}
+   for i=0,nofcoverage-1 do
+    coverage[readushort(f)]=i 
+   end
+   return coverage
+  end
+ elseif coverageformat==2 then
+  local nofranges=readushort(f)
+  local coverage={}
+  local n=simple and 1 or 0 
+  for i=1,nofranges do
+   local firstindex=readushort(f)
+   local lastindex=readushort(f)
+   local coverindex=readushort(f)
+   if simple then
+    for i=firstindex,lastindex do
+     coverage[n]=i
+     n=n+1
+    end
+   else
+    for i=firstindex,lastindex do
+     coverage[i]=n
+     n=n+1
+    end
+   end
+  end
+  return coverage
+ else
+  report("unknown coverage format %a ",coverageformat)
+  return {}
+ end
+end
+local function readclassdef(f,offset,preset)
+ setposition(f,offset)
+ local classdefformat=readushort(f)
+ local classdef={}
+ if type(preset)=="number" then
+  for k=0,preset-1 do
+   classdef[k]=1
+  end
+ end
+ if classdefformat==1 then
+  local index=readushort(f)
+  local nofclassdef=readushort(f)
+  for i=1,nofclassdef do
+   classdef[index]=readushort(f)+1
+   index=index+1
+  end
+ elseif classdefformat==2 then
+  local nofranges=readushort(f)
+  local n=0
+  for i=1,nofranges do
+   local firstindex=readushort(f)
+   local lastindex=readushort(f)
+   local class=readushort(f)+1
+   for i=firstindex,lastindex do
+    classdef[i]=class
+   end
+  end
+ else
+  report("unknown classdef format %a ",classdefformat)
+ end
+ if type(preset)=="table" then
+  for k in next,preset do
+   if not classdef[k] then
+    classdef[k]=1
+   end
+  end
+ end
+ return classdef
+end
+local function classtocoverage(defs)
+ if defs then
+  local list={}
+  for index,class in next,defs do
+   local c=list[class]
+   if c then
+    c[#c+1]=index
+   else
+    list[class]={ index }
+   end
+  end
+  return list
+ end
+end
+local skips={ [0]=0,
+ 1,
+ 1,
+ 2,
+ 1,
+ 2,
+ 2,
+ 3,
+ 2,
+ 2,
+ 3,
+ 2,
+ 3,
+ 3,
+ 4,
+}
+local function readvariation(f,offset)
+ local p=getposition(f)
+ setposition(f,offset)
+ local outer=readushort(f)
+ local inner=readushort(f)
+ local format=readushort(f)
+ setposition(f,p)
+ if format==0x8000 then
+  return outer,inner
+ end
+end
+local function readposition(f,format,mainoffset,getdelta)
+ if format==0 then
+  return false
+ end
+ if format==0x04 then
+  local h=readshort(f)
+  if h==0 then
+   return true 
+  else
+   return { 0,0,h,0 }
+  end
+ end
+ if format==0x05 then
+  local x=readshort(f)
+  local h=readshort(f)
+  if x==0 and h==0 then
+   return true 
+  else
+   return { x,0,h,0 }
+  end
+ end
+ if format==0x44 then
+  local h=readshort(f)
+  if getdelta then
+   local d=readshort(f) 
+   if d>0 then
+    local outer,inner=readvariation(f,mainoffset+d)
+    if outer then
+     h=h+getdelta(outer,inner)
+    end
+   end
+  else
+   skipshort(f,1)
+  end
+  if h==0 then
+   return true 
+  else
+   return { 0,0,h,0 }
+  end
+ end
+ local x=band(format,0x1)~=0 and readshort(f) or 0 
+ local y=band(format,0x2)~=0 and readshort(f) or 0 
+ local h=band(format,0x4)~=0 and readshort(f) or 0 
+ local v=band(format,0x8)~=0 and readshort(f) or 0 
+ if format>=0x10 then
+  local X=band(format,0x10)~=0 and skipshort(f) or 0
+  local Y=band(format,0x20)~=0 and skipshort(f) or 0
+  local H=band(format,0x40)~=0 and skipshort(f) or 0
+  local V=band(format,0x80)~=0 and skipshort(f) or 0
+  local s=skips[extract(format,4,4)]
+  if s>0 then
+   skipshort(f,s)
+  end
+  if getdelta then
+   if X>0 then
+    local outer,inner=readvariation(f,mainoffset+X)
+    if outer then
+     x=x+getdelta(outer,inner)
+    end
+   end
+   if Y>0 then
+    local outer,inner=readvariation(f,mainoffset+Y)
+    if outer then
+     y=y+getdelta(outer,inner)
+    end
+   end
+   if H>0 then
+    local outer,inner=readvariation(f,mainoffset+H)
+    if outer then
+     h=h+getdelta(outer,inner)
+    end
+   end
+   if V>0 then
+    local outer,inner=readvariation(f,mainoffset+V)
+    if outer then
+     v=v+getdelta(outer,inner)
+    end
+   end
+  end
+  return { x,y,h,v }
+ elseif x==0 and y==0 and h==0 and v==0 then
+  return true 
+ else
+  return { x,y,h,v }
+ end
+end
+local function readanchor(f,offset,getdelta) 
+ if not offset or offset==0 then
+  return nil 
+ end
+ setposition(f,offset)
+ local format=readshort(f) 
+ local x=readshort(f)
+ local y=readshort(f)
+ if format==3 then
+  if getdelta then
+   local X=readshort(f)
+   local Y=readshort(f)
+   if X>0 then
+    local outer,inner=readvariation(f,offset+X)
+    if outer then
+     x=x+getdelta(outer,inner)
+    end
+   end
+   if Y>0 then
+    local outer,inner=readvariation(f,offset+Y)
+    if outer then
+     y=y+getdelta(outer,inner)
+    end
+   end
+  else
+   skipshort(f,2)
+  end
+  return { x,y } 
+ else
+  return { x,y }
+ end
+end
+local function readfirst(f,offset)
+ if offset then
+  setposition(f,offset)
+ end
+ return { readushort(f) }
+end
+function readarray(f,offset)
+ if offset then
+  setposition(f,offset)
+ end
+ local n=readushort(f)
+ if n==1 then
+  return { readushort(f) },1
+ elseif n>0 then
+  return readcardinaltable(f,n,ushort),n
+ end
+end
+local function readcoveragearray(f,offset,t,simple)
+ if not t then
+  return nil
+ end
+ local n=#t
+ if n==0 then
+  return nil
+ end
+ for i=1,n do
+  t[i]=readcoverage(f,offset+t[i],simple)
+ end
+ return t
+end
+local function covered(subset,all)
+ local used,u
+ for i=1,#subset do
+  local s=subset[i]
+  if all[s] then
+   if used then
+    u=u+1
+    used[u]=s
+   else
+    u=1
+    used={ s }
+   end
+  end
+ end
+ return used
+end
+local function readlookuparray(f,noflookups,nofcurrent)
+ local lookups={}
+ if noflookups>0 then
+  local length=0
+  for i=1,noflookups do
+   local index=readushort(f)+1
+   if index>length then
+    length=index
+   end
+   local lookup=readushort(f)+1
+   local list=lookups[index]
+   if list then
+    list[#list+1]=lookup
+   else
+    lookups[index]={ lookup }
+   end
+  end
+  for index=1,length do
+   if not lookups[index] then
+    lookups[index]=false
+   end
+  end
+ end
+ return lookups
+end
+local function unchainedcontext(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs,what)
+ local tableoffset=lookupoffset+offset
+ setposition(f,tableoffset)
+ local subtype=readushort(f)
+ if subtype==1 then
+  local coverage=readushort(f)
+  local subclasssets=readarray(f)
+  local rules={}
+  if subclasssets then
+   coverage=readcoverage(f,tableoffset+coverage,true)
+   for i=1,#subclasssets do
+    local offset=subclasssets[i]
+    if offset>0 then
+     local firstcoverage=coverage[i]
+     local rulesoffset=tableoffset+offset
+     local subclassrules=readarray(f,rulesoffset)
+     for rule=1,#subclassrules do
+      setposition(f,rulesoffset+subclassrules[rule])
+      local nofcurrent=readushort(f)
+      local noflookups=readushort(f)
+      local current={ { firstcoverage } }
+      for i=2,nofcurrent do
+       current[i]={ readushort(f) }
+      end
+      local lookups=readlookuparray(f,noflookups,nofcurrent)
+      rules[#rules+1]={
+       current=current,
+       lookups=lookups
+      }
+     end
+    end
+   end
+  else
+   report("empty subclassset in %a subtype %i","unchainedcontext",subtype)
+  end
+  return {
+   format="glyphs",
+   rules=rules,
+  }
+ elseif subtype==2 then
+  local coverage=readushort(f)
+  local currentclassdef=readushort(f)
+  local subclasssets=readarray(f)
+  local rules={}
+  if subclasssets then
+   coverage=readcoverage(f,tableoffset+coverage)
+   currentclassdef=readclassdef(f,tableoffset+currentclassdef,coverage)
+   local currentclasses=classtocoverage(currentclassdef,fontdata.glyphs)
+   for class=1,#subclasssets do
+    local offset=subclasssets[class]
+    if offset>0 then
+     local firstcoverage=currentclasses[class]
+     if firstcoverage then
+      firstcoverage=covered(firstcoverage,coverage) 
+      if firstcoverage then
+       local rulesoffset=tableoffset+offset
+       local subclassrules=readarray(f,rulesoffset)
+       for rule=1,#subclassrules do
+        setposition(f,rulesoffset+subclassrules[rule])
+        local nofcurrent=readushort(f)
+        local noflookups=readushort(f)
+        local current={ firstcoverage }
+        for i=2,nofcurrent do
+         current[i]=currentclasses[readushort(f)+1]
+        end
+        local lookups=readlookuparray(f,noflookups,nofcurrent)
+        rules[#rules+1]={
+         current=current,
+         lookups=lookups
+        }
+       end
+      else
+       report("no coverage")
+      end
+     else
+      report("no coverage class")
+     end
+    end
+   end
+  else
+   report("empty subclassset in %a subtype %i","unchainedcontext",subtype)
+  end
+  return {
+   format="class",
+   rules=rules,
+  }
+ elseif subtype==3 then
+  local nofglyphs=readushort(f)
+  local noflookups=readushort(f)
+  local current=readcardinaltable(f,nofglyphs,ushort)
+  local lookups=readlookuparray(f,noflookups,#current)
+  current=readcoveragearray(f,tableoffset,current,true)
+  return {
+   format="coverage",
+   rules={
+    {
+     current=current,
+     lookups=lookups,
+    }
+   }
+  }
+ else
+  report("unsupported subtype %a in %a %s",subtype,"unchainedcontext",what)
+ end
+end
+local function chainedcontext(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs,what)
+ local tableoffset=lookupoffset+offset
+ setposition(f,tableoffset)
+ local subtype=readushort(f)
+ if subtype==1 then
+  local coverage=readushort(f)
+  local subclasssets=readarray(f)
+  local rules={}
+  if subclasssets then
+   coverage=readcoverage(f,tableoffset+coverage,true)
+   for i=1,#subclasssets do
+    local offset=subclasssets[i]
+    if offset>0 then
+     local firstcoverage=coverage[i]
+     local rulesoffset=tableoffset+offset
+     local subclassrules=readarray(f,rulesoffset)
+     for rule=1,#subclassrules do
+      setposition(f,rulesoffset+subclassrules[rule])
+      local nofbefore=readushort(f)
+      local before
+      if nofbefore>0 then
+       before={}
+       for i=1,nofbefore do
+        before[i]={ readushort(f) }
+       end
+      end
+      local nofcurrent=readushort(f)
+      local current={ { firstcoverage } }
+      for i=2,nofcurrent do
+       current[i]={ readushort(f) }
+      end
+      local nofafter=readushort(f)
+      local after
+      if nofafter>0 then
+       after={}
+       for i=1,nofafter do
+        after[i]={ readushort(f) }
+       end
+      end
+      local noflookups=readushort(f)
+      local lookups=readlookuparray(f,noflookups,nofcurrent)
+      rules[#rules+1]={
+       before=before,
+       current=current,
+       after=after,
+       lookups=lookups,
+      }
+     end
+    end
+   end
+  else
+   report("empty subclassset in %a subtype %i","chainedcontext",subtype)
+  end
+  return {
+   format="glyphs",
+   rules=rules,
+  }
+ elseif subtype==2 then
+  local coverage=readushort(f)
+  local beforeclassdef=readushort(f)
+  local currentclassdef=readushort(f)
+  local afterclassdef=readushort(f)
+  local subclasssets=readarray(f)
+  local rules={}
+  if subclasssets then
+   local coverage=readcoverage(f,tableoffset+coverage)
+   local beforeclassdef=readclassdef(f,tableoffset+beforeclassdef,nofglyphs)
+   local currentclassdef=readclassdef(f,tableoffset+currentclassdef,coverage)
+   local afterclassdef=readclassdef(f,tableoffset+afterclassdef,nofglyphs)
+   local beforeclasses=classtocoverage(beforeclassdef,fontdata.glyphs)
+   local currentclasses=classtocoverage(currentclassdef,fontdata.glyphs)
+   local afterclasses=classtocoverage(afterclassdef,fontdata.glyphs)
+   for class=1,#subclasssets do
+    local offset=subclasssets[class]
+    if offset>0 then
+     local firstcoverage=currentclasses[class]
+     if firstcoverage then
+      firstcoverage=covered(firstcoverage,coverage) 
+      if firstcoverage then
+       local rulesoffset=tableoffset+offset
+       local subclassrules=readarray(f,rulesoffset)
+       for rule=1,#subclassrules do
+        setposition(f,rulesoffset+subclassrules[rule])
+        local nofbefore=readushort(f)
+        local before
+        if nofbefore>0 then
+         before={}
+         for i=1,nofbefore do
+          before[i]=beforeclasses[readushort(f)+1]
+         end
+        end
+        local nofcurrent=readushort(f)
+        local current={ firstcoverage }
+        for i=2,nofcurrent do
+         current[i]=currentclasses[readushort(f)+1]
+        end
+        local nofafter=readushort(f)
+        local after
+        if nofafter>0 then
+         after={}
+         for i=1,nofafter do
+          after[i]=afterclasses[readushort(f)+1]
+         end
+        end
+        local noflookups=readushort(f)
+        local lookups=readlookuparray(f,noflookups,nofcurrent)
+        rules[#rules+1]={
+         before=before,
+         current=current,
+         after=after,
+         lookups=lookups,
+        }
+       end
+      else
+       report("no coverage")
+      end
+     else
+      report("class is not covered")
+     end
+    end
+   end
+  else
+   report("empty subclassset in %a subtype %i","chainedcontext",subtype)
+  end
+  return {
+   format="class",
+   rules=rules,
+  }
+ elseif subtype==3 then
+  local before=readarray(f)
+  local current=readarray(f)
+  local after=readarray(f)
+  local noflookups=readushort(f)
+  local lookups=readlookuparray(f,noflookups,#current)
+  before=readcoveragearray(f,tableoffset,before,true)
+  current=readcoveragearray(f,tableoffset,current,true)
+  after=readcoveragearray(f,tableoffset,after,true)
+  return {
+   format="coverage",
+   rules={
+    {
+     before=before,
+     current=current,
+     after=after,
+     lookups=lookups,
+    }
+   }
+  }
+ else
+  report("unsupported subtype %a in %a %s",subtype,"chainedcontext",what)
+ end
+end
+local function extension(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs,types,handlers,what)
+ local tableoffset=lookupoffset+offset
+ setposition(f,tableoffset)
+ local subtype=readushort(f)
+ if subtype==1 then
+  local lookuptype=types[readushort(f)]
+  local faroffset=readulong(f)
+  local handler=handlers[lookuptype]
+  if handler then
+   return handler(f,fontdata,lookupid,tableoffset+faroffset,0,glyphs,nofglyphs),lookuptype
+  else
+   report("no handler for lookuptype %a subtype %a in %s %s",lookuptype,subtype,what,"extension")
+  end
+ else
+  report("unsupported subtype %a in %s %s",subtype,what,"extension")
+ end
+end
+function gsubhandlers.single(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ local tableoffset=lookupoffset+offset
+ setposition(f,tableoffset)
+ local subtype=readushort(f)
+ if subtype==1 then
+  local coverage=readushort(f)
+  local delta=readshort(f) 
+  local coverage=readcoverage(f,tableoffset+coverage) 
+  for index in next,coverage do
+   local newindex=(index+delta)%65536 
+   if index>nofglyphs or newindex>nofglyphs then
+    report("invalid index in %s format %i: %i -> %i (max %i)","single",subtype,index,newindex,nofglyphs)
+    coverage[index]=nil
+   else
+    coverage[index]=newindex
+   end
+  end
+  return {
+   coverage=coverage
+  }
+ elseif subtype==2 then 
+  local coverage=readushort(f)
+  local nofreplacements=readushort(f)
+  local replacements=readcardinaltable(f,nofreplacements,ushort)
+  local coverage=readcoverage(f,tableoffset+coverage) 
+  for index,newindex in next,coverage do
+   newindex=newindex+1
+   if index>nofglyphs or newindex>nofglyphs then
+    report("invalid index in %s format %i: %i -> %i (max %i)","single",subtype,index,newindex,nofglyphs)
+    coverage[index]=nil
+   else
+    coverage[index]=replacements[newindex]
+   end
+  end
+  return {
+   coverage=coverage
+  }
+ else
+  report("unsupported subtype %a in %a substitution",subtype,"single")
+ end
+end
+local function sethandler(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs,what)
+ local tableoffset=lookupoffset+offset
+ setposition(f,tableoffset)
+ local subtype=readushort(f)
+ if subtype==1 then
+  local coverage=readushort(f)
+  local nofsequence=readushort(f)
+  local sequences=readcardinaltable(f,nofsequence,ushort)
+  for i=1,nofsequence do
+   setposition(f,tableoffset+sequences[i])
+   sequences[i]=readcardinaltable(f,readushort(f),ushort)
+  end
+  local coverage=readcoverage(f,tableoffset+coverage)
+  for index,newindex in next,coverage do
+   newindex=newindex+1
+   if index>nofglyphs or newindex>nofglyphs then
+    report("invalid index in %s format %i: %i -> %i (max %i)",what,subtype,index,newindex,nofglyphs)
+    coverage[index]=nil
+   else
+    coverage[index]=sequences[newindex]
+   end
+  end
+  return {
+   coverage=coverage
+  }
+ else
+  report("unsupported subtype %a in %a substitution",subtype,what)
+ end
+end
+function gsubhandlers.multiple(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ return sethandler(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs,"multiple")
+end
+function gsubhandlers.alternate(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ return sethandler(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs,"alternate")
+end
+function gsubhandlers.ligature(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ local tableoffset=lookupoffset+offset
+ setposition(f,tableoffset)
+ local subtype=readushort(f)
+ if subtype==1 then
+  local coverage=readushort(f)
+  local nofsets=readushort(f)
+  local ligatures=readcardinaltable(f,nofsets,ushort)
+  for i=1,nofsets do
+   local offset=lookupoffset+offset+ligatures[i]
+   setposition(f,offset)
+   local n=readushort(f)
+   if n==1 then
+    ligatures[i]={ offset+readushort(f) }
+   else
+    local l={}
+    for i=1,n do
+     l[i]=offset+readushort(f)
+    end
+    ligatures[i]=l
+   end
+  end
+  local coverage=readcoverage(f,tableoffset+coverage)
+  for index,newindex in next,coverage do
+   local hash={}
+   local ligatures=ligatures[newindex+1]
+   for i=1,#ligatures do
+    local offset=ligatures[i]
+    setposition(f,offset)
+    local lig=readushort(f)
+    local cnt=readushort(f)
+    local hsh=hash
+    for i=2,cnt do
+     local c=readushort(f)
+     local h=hsh[c]
+     if not h then
+      h={}
+      hsh[c]=h
+     end
+     hsh=h
+    end
+    hsh.ligature=lig
+   end
+   coverage[index]=hash
+  end
+  return {
+   coverage=coverage
+  }
+ else
+  report("unsupported subtype %a in %a substitution",subtype,"ligature")
+ end
+end
+function gsubhandlers.context(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ return unchainedcontext(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs,"substitution"),"context"
+end
+function gsubhandlers.chainedcontext(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ return chainedcontext(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs,"substitution"),"chainedcontext"
+end
+function gsubhandlers.extension(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ return extension(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs,gsubtypes,gsubhandlers,"substitution")
+end
+function gsubhandlers.reversechainedcontextsingle(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ local tableoffset=lookupoffset+offset
+ setposition(f,tableoffset)
+ local subtype=readushort(f)
+ if subtype==1 then 
+  local current=readfirst(f)
+  local before=readarray(f)
+  local after=readarray(f)
+  local replacements=readarray(f)
+  current=readcoveragearray(f,tableoffset,current,true)
+  before=readcoveragearray(f,tableoffset,before,true)
+  after=readcoveragearray(f,tableoffset,after,true)
+  return {
+   format="reversecoverage",
+   rules={
+    {
+     before=before,
+     current=current,
+     after=after,
+     replacements=replacements,
+    }
+   }
+  },"reversechainedcontextsingle"
+ else
+  report("unsupported subtype %a in %a substitution",subtype,"reversechainedcontextsingle")
+ end
+end
+local function readpairsets(f,tableoffset,sets,format1,format2,mainoffset,getdelta)
+ local done={}
+ for i=1,#sets do
+  local offset=sets[i]
+  local reused=done[offset]
+  if not reused then
+   offset=tableoffset+offset
+   setposition(f,offset)
+   local n=readushort(f)
+   reused={}
+   for i=1,n do
+    reused[i]={
+     readushort(f),
+     readposition(f,format1,offset,getdelta),
+     readposition(f,format2,offset,getdelta),
+    }
+   end
+   done[offset]=reused
+  end
+  sets[i]=reused
+ end
+ return sets
+end
+local function readpairclasssets(f,nofclasses1,nofclasses2,format1,format2,mainoffset,getdelta)
+ local classlist1={}
+ for i=1,nofclasses1 do
+  local classlist2={}
+  classlist1[i]=classlist2
+  for j=1,nofclasses2 do
+   local one=readposition(f,format1,mainoffset,getdelta)
+   local two=readposition(f,format2,mainoffset,getdelta)
+   if one or two then
+    classlist2[j]={ one,two }
+   else
+    classlist2[j]=false
+   end
+  end
+ end
+ return classlist1
+end
+function gposhandlers.single(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ local tableoffset=lookupoffset+offset
+ setposition(f,tableoffset)
+ local subtype=readushort(f)
+ local getdelta=fontdata.temporary.getdelta
+ if subtype==1 then
+  local coverage=readushort(f)
+  local format=readushort(f)
+  local value=readposition(f,format,tableoffset,getdelta)
+  local coverage=readcoverage(f,tableoffset+coverage)
+  for index,newindex in next,coverage do
+   coverage[index]=value 
+  end
+  return {
+   format="single",
+   coverage=coverage,
+  }
+ elseif subtype==2 then
+  local coverage=readushort(f)
+  local format=readushort(f)
+  local nofvalues=readushort(f)
+  local values={}
+  for i=1,nofvalues do
+   values[i]=readposition(f,format,tableoffset,getdelta)
+  end
+  local coverage=readcoverage(f,tableoffset+coverage)
+  for index,newindex in next,coverage do
+   coverage[index]=values[newindex+1]
+  end
+  return {
+   format="single",
+   coverage=coverage,
+  }
+ else
+  report("unsupported subtype %a in %a positioning",subtype,"single")
+ end
+end
+function gposhandlers.pair(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ local tableoffset=lookupoffset+offset
+ setposition(f,tableoffset)
+ local subtype=readushort(f)
+ local getdelta=fontdata.temporary.getdelta
+ if subtype==1 then
+  local coverage=readushort(f)
+  local format1=readushort(f)
+  local format2=readushort(f)
+  local sets=readarray(f)
+     sets=readpairsets(f,tableoffset,sets,format1,format2,mainoffset,getdelta)
+     coverage=readcoverage(f,tableoffset+coverage)
+  local shared={} 
+  for index,newindex in next,coverage do
+   local set=sets[newindex+1]
+   local hash={}
+   for i=1,#set do
+    local value=set[i]
+    if value then
+     local other=value[1]
+     local share=shared[value]
+     if share==nil then
+      local first=value[2]
+      local second=value[3]
+      if first or second then
+       share={ first,second or nil } 
+      else
+       share=false
+      end
+      shared[value]=share
+     end
+     hash[other]=share or nil 
+    end
+   end
+   coverage[index]=hash
+  end
+  return {
+   shared=shared and true or nil,
+   format="pair",
+   coverage=coverage,
+  }
+ elseif subtype==2 then
+  local coverage=readushort(f)
+  local format1=readushort(f)
+  local format2=readushort(f)
+  local classdef1=readushort(f)
+  local classdef2=readushort(f)
+  local nofclasses1=readushort(f) 
+  local nofclasses2=readushort(f) 
+  local classlist=readpairclasssets(f,nofclasses1,nofclasses2,format1,format2,tableoffset,getdelta)
+     coverage=readcoverage(f,tableoffset+coverage)
+     classdef1=readclassdef(f,tableoffset+classdef1,coverage)
+     classdef2=readclassdef(f,tableoffset+classdef2,nofglyphs)
+  local usedcoverage={}
+  local shared={} 
+  for g1,c1 in next,classdef1 do
+   if coverage[g1] then
+    local l1=classlist[c1]
+    if l1 then
+     local hash={}
+     for paired,class in next,classdef2 do
+      local offsets=l1[class]
+      if offsets then
+       local first=offsets[1]
+       local second=offsets[2]
+       if first or second then
+        local s1=shared[first]
+        if s1==nil then
+         s1={}
+         shared[first]=s1
+        end
+        local s2=s1[second]
+        if s2==nil then
+         s2={ first,second or nil }
+         s1[second]=s2
+        end
+        hash[paired]=s2
+       end
+      end
+     end
+     usedcoverage[g1]=hash
+    end
+   end
+  end
+  return {
+   shared=shared and true or nil,
+   format="pair",
+   coverage=usedcoverage,
+  }
+ elseif subtype==3 then
+  report("yet unsupported subtype %a in %a positioning",subtype,"pair")
+ else
+  report("unsupported subtype %a in %a positioning",subtype,"pair")
+ end
+end
+function gposhandlers.cursive(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ local tableoffset=lookupoffset+offset
+ setposition(f,tableoffset)
+ local subtype=readushort(f)
+ local getdelta=fontdata.temporary.getdelta
+ if subtype==1 then
+  local coverage=tableoffset+readushort(f)
+  local nofrecords=readushort(f)
+  local records={}
+  for i=1,nofrecords do
+   local entry=readushort(f)
+   local exit=readushort(f)
+   records[i]={
+    entry~=0 and (tableoffset+entry) or false,
+    exit~=0 and (tableoffset+exit ) or nil,
+   }
+  end
+  local cc=(fontdata.temporary.cursivecount or 0)+1
+  fontdata.temporary.cursivecount=cc
+  cc="cc-"..cc
+  coverage=readcoverage(f,coverage)
+  for i=1,nofrecords do
+   local r=records[i]
+   records[i]={
+    cc,
+    readanchor(f,r[1],getdelta) or false,
+    readanchor(f,r[2],getdelta) or nil,
+   }
+  end
+  for index,newindex in next,coverage do
+   coverage[index]=records[newindex+1]
+  end
+  return {
+   coverage=coverage,
+  }
+ else
+  report("unsupported subtype %a in %a positioning",subtype,"cursive")
+ end
+end
+local function handlemark(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs,ligature)
+ local tableoffset=lookupoffset+offset
+ setposition(f,tableoffset)
+ local subtype=readushort(f)
+ local getdelta=fontdata.temporary.getdelta
+ if subtype==1 then
+  local markcoverage=tableoffset+readushort(f)
+  local basecoverage=tableoffset+readushort(f)
+  local nofclasses=readushort(f)
+  local markoffset=tableoffset+readushort(f)
+  local baseoffset=tableoffset+readushort(f)
+  local markcoverage=readcoverage(f,markcoverage)
+  local basecoverage=readcoverage(f,basecoverage,true)
+  setposition(f,markoffset)
+  local markclasses={}
+  local nofmarkclasses=readushort(f)
+  local lastanchor=fontdata.lastanchor or 0
+  local usedanchors={}
+  for i=1,nofmarkclasses do
+   local class=readushort(f)+1
+   local offset=readushort(f)
+   if offset==0 then
+    markclasses[i]=false
+   else
+    markclasses[i]={ class,markoffset+offset }
+   end
+   usedanchors[class]=true
+  end
+  for i=1,nofmarkclasses do
+   local mc=markclasses[i]
+   if mc then
+    mc[2]=readanchor(f,mc[2],getdelta)
+   end
+  end
+  setposition(f,baseoffset)
+  local nofbaserecords=readushort(f)
+  local baserecords={}
+  if ligature then
+   for i=1,nofbaserecords do 
+    local offset=readushort(f)
+    if offset==0 then
+     baserecords[i]=false
+    else
+     baserecords[i]=baseoffset+offset
+    end
+   end
+   for i=1,nofbaserecords do
+    local recordoffset=baserecords[i]
+    if recordoffset then
+     setposition(f,recordoffset)
+     local nofcomponents=readushort(f)
+     local components={}
+     for i=1,nofcomponents do
+      local classes={}
+      for i=1,nofclasses do
+       local offset=readushort(f)
+       if offset~=0 then
+        classes[i]=recordoffset+offset
+       else
+        classes[i]=false
+       end
+      end
+      components[i]=classes
+     end
+     baserecords[i]=components
+    end
+   end
+   local baseclasses={} 
+   for i=1,nofclasses do
+    baseclasses[i]={}
+   end
+   for i=1,nofbaserecords do
+    local components=baserecords[i]
+    if components then
+     local b=basecoverage[i]
+     for c=1,#components do
+      local classes=components[c]
+      if classes then
+       for i=1,nofclasses do
+        local anchor=readanchor(f,classes[i],getdelta)
+        local bclass=baseclasses[i]
+        local bentry=bclass[b]
+        if bentry then
+         bentry[c]=anchor
+        else
+         bclass[b]={ [c]=anchor }
+        end
+       end
+      end
+     end
+    end
+   end
+   for index,newindex in next,markcoverage do
+    markcoverage[index]=markclasses[newindex+1] or nil
+   end
+   return {
+    format="ligature",
+    baseclasses=baseclasses,
+    coverage=markcoverage,
+   }
+  else
+   for i=1,nofbaserecords do
+    local r={}
+    for j=1,nofclasses do
+     local offset=readushort(f)
+     if offset==0 then
+      r[j]=false
+     else
+      r[j]=baseoffset+offset
+     end
+    end
+    baserecords[i]=r
+   end
+   local baseclasses={} 
+   for i=1,nofclasses do
+    baseclasses[i]={}
+   end
+   for i=1,nofbaserecords do
+    local r=baserecords[i]
+    local b=basecoverage[i]
+    for j=1,nofclasses do
+     baseclasses[j][b]=readanchor(f,r[j],getdelta)
+    end
+   end
+   for index,newindex in next,markcoverage do
+    markcoverage[index]=markclasses[newindex+1] or nil
+   end
+   return {
+    format="base",
+    baseclasses=baseclasses,
+    coverage=markcoverage,
+   }
+  end
+ else
+  report("unsupported subtype %a in",subtype)
+ end
+end
+function gposhandlers.marktobase(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ return handlemark(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+end
+function gposhandlers.marktoligature(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ return handlemark(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs,true)
+end
+function gposhandlers.marktomark(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ return handlemark(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+end
+function gposhandlers.context(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ return unchainedcontext(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs,"positioning"),"context"
+end
+function gposhandlers.chainedcontext(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ return chainedcontext(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs,"positioning"),"chainedcontext"
+end
+function gposhandlers.extension(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs)
+ return extension(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofglyphs,gpostypes,gposhandlers,"positioning")
+end
+do
+ local plugins={}
+ function plugins.size(f,fontdata,tableoffset,feature)
+  if fontdata.designsize then
+  else
+   local function check(offset)
+    setposition(f,offset)
+    local designsize=readushort(f)
+    if designsize>0 then 
+     local fontstyleid=readushort(f)
+     local guimenuid=readushort(f)
+     local minsize=readushort(f)
+     local maxsize=readushort(f)
+     if minsize==0 and maxsize==0 and fontstyleid==0 and guimenuid==0 then
+      minsize=designsize
+      maxsize=designsize
+     end
+     if designsize>=minsize and designsize<=maxsize then
+      return minsize,maxsize,designsize
+     end
+    end
+   end
+   local minsize,maxsize,designsize=check(tableoffset+feature.offset+feature.parameters)
+   if not designsize then
+    minsize,maxsize,designsize=check(tableoffset+feature.parameters)
+    if designsize then
+     report("bad size feature in %a, falling back to wrong offset",fontdata.filename or "?")
+    else
+     report("bad size feature in %a,",fontdata.filename or "?")
+    end
+   end
+   if designsize then
+    fontdata.minsize=minsize
+    fontdata.maxsize=maxsize
+    fontdata.designsize=designsize
+   end
+  end
+ end
+ local function reorderfeatures(fontdata,scripts,features)
+  local scriptlangs={}
+  local featurehash={}
+  local featureorder={}
+  for script,languages in next,scripts do
+   for language,record in next,languages do
+    local hash={}
+    local list=record.featureindices
+    for k=1,#list do
+     local index=list[k]
+     local feature=features[index]
+     local lookups=feature.lookups
+     local tag=feature.tag
+     if tag then
+      hash[tag]=true
+     end
+     if lookups then
+      for i=1,#lookups do
+       local lookup=lookups[i]
+       local o=featureorder[lookup]
+       if o then
+        local okay=true
+        for i=1,#o do
+         if o[i]==tag then
+          okay=false
+          break
+         end
+        end
+        if okay then
+         o[#o+1]=tag
+        end
+       else
+        featureorder[lookup]={ tag }
+       end
+       local f=featurehash[lookup]
+       if f then
+        local h=f[tag]
+        if h then
+         local s=h[script]
+         if s then
+          s[language]=true
+         else
+          h[script]={ [language]=true }
+         end
+        else
+         f[tag]={ [script]={ [language]=true } }
+        end
+       else
+        featurehash[lookup]={ [tag]={ [script]={ [language]=true } } }
+       end
+       local h=scriptlangs[tag]
+       if h then
+        local s=h[script]
+        if s then
+         s[language]=true
+        else
+         h[script]={ [language]=true }
+        end
+       else
+        scriptlangs[tag]={ [script]={ [language]=true } }
+       end
+      end
+     end
+    end
+   end
+  end
+  return scriptlangs,featurehash,featureorder
+ end
+ local function readscriplan(f,fontdata,scriptoffset)
+  setposition(f,scriptoffset)
+  local nofscripts=readushort(f)
+  local scripts={}
+  for i=1,nofscripts do
+   scripts[readtag(f)]=scriptoffset+readushort(f)
+  end
+  local languagesystems=setmetatableindex("table")
+  for script,offset in next,scripts do
+   setposition(f,offset)
+   local defaultoffset=readushort(f)
+   local noflanguages=readushort(f)
+   local languages={}
+   if defaultoffset>0 then
+    languages.dflt=languagesystems[offset+defaultoffset]
+   end
+   for i=1,noflanguages do
+    local language=readtag(f)
+    local offset=offset+readushort(f)
+    languages[language]=languagesystems[offset]
+   end
+   scripts[script]=languages
+  end
+  for offset,usedfeatures in next,languagesystems do
+   if offset>0 then
+    setposition(f,offset)
+    local featureindices={}
+    usedfeatures.featureindices=featureindices
+    usedfeatures.lookuporder=readushort(f) 
+    usedfeatures.requiredindex=readushort(f) 
+    local noffeatures=readushort(f)
+    for i=1,noffeatures do
+     featureindices[i]=readushort(f)+1
+    end
+   end
+  end
+  return scripts
+ end
+ local function readfeatures(f,fontdata,featureoffset)
+  setposition(f,featureoffset)
+  local features={}
+  local noffeatures=readushort(f)
+  for i=1,noffeatures do
+   features[i]={
+    tag=readtag(f),
+    offset=readushort(f)
+   }
+  end
+  for i=1,noffeatures do
+   local feature=features[i]
+   local offset=featureoffset+feature.offset
+   setposition(f,offset)
+   local parameters=readushort(f) 
+   local noflookups=readushort(f)
+   if noflookups>0 then
+    local lookups=readcardinaltable(f,noflookups,ushort)
+    feature.lookups=lookups
+    for j=1,noflookups do
+     lookups[j]=lookups[j]+1
+    end
+   end
+   if parameters>0 then
+    feature.parameters=parameters
+    local plugin=plugins[feature.tag]
+    if plugin then
+     plugin(f,fontdata,featureoffset,feature)
+    end
+   end
+  end
+  return features
+ end
+ local function readlookups(f,lookupoffset,lookuptypes,featurehash,featureorder)
+  setposition(f,lookupoffset)
+  local noflookups=readushort(f)
+  local lookups=readcardinaltable(f,noflookups,ushort)
+  for lookupid=1,noflookups do
+   local offset=lookups[lookupid]
+   setposition(f,lookupoffset+offset)
+   local subtables={}
+   local typebits=readushort(f)
+   local flagbits=readushort(f)
+   local lookuptype=lookuptypes[typebits]
+   local lookupflags=lookupflags[flagbits]
+   local nofsubtables=readushort(f)
+   for j=1,nofsubtables do
+    subtables[j]=offset+readushort(f) 
+   end
+   local markclass=band(flagbits,0x0010)~=0 
+   if markclass then
+    markclass=readushort(f) 
+   end
+   local markset=rshift(flagbits,8)
+   if markset>0 then
+    markclass=markset 
+   end
+   lookups[lookupid]={
+    type=lookuptype,
+    flags=lookupflags,
+    name=lookupid,
+    subtables=subtables,
+    markclass=markclass,
+    features=featurehash[lookupid],
+    order=featureorder[lookupid],
+   }
+  end
+  return lookups
+ end
+ local f_lookupname=formatters["%s_%s_%s"]
+ local function resolvelookups(f,lookupoffset,fontdata,lookups,lookuptypes,lookuphandlers,what,tableoffset)
+  local sequences=fontdata.sequences  or {}
+  local sublookuplist=fontdata.sublookups or {}
+  fontdata.sequences=sequences
+  fontdata.sublookups=sublookuplist
+  local nofsublookups=#sublookuplist
+  local nofsequences=#sequences 
+  local lastsublookup=nofsublookups
+  local lastsequence=nofsequences
+  local lookupnames=lookupnames[what]
+  local sublookuphash={}
+  local sublookupcheck={}
+  local glyphs=fontdata.glyphs
+  local nofglyphs=fontdata.nofglyphs or #glyphs
+  local noflookups=#lookups
+  local lookupprefix=sub(what,2,2)
+  local usedlookups=false
+  for lookupid=1,noflookups do
+   local lookup=lookups[lookupid]
+   local lookuptype=lookup.type
+   local subtables=lookup.subtables
+   local features=lookup.features
+   local handler=lookuphandlers[lookuptype]
+   if handler then
+    local nofsubtables=#subtables
+    local order=lookup.order
+    local flags=lookup.flags
+    if flags[1] then flags[1]="mark" end
+    if flags[2] then flags[2]="ligature" end
+    if flags[3] then flags[3]="base" end
+    local markclass=lookup.markclass
+    if nofsubtables>0 then
+     local steps={}
+     local nofsteps=0
+     local oldtype=nil
+     for s=1,nofsubtables do
+      local step,lt=handler(f,fontdata,lookupid,lookupoffset,subtables[s],glyphs,nofglyphs)
+      if lt then
+       lookuptype=lt
+       if oldtype and lt~=oldtype then
+        report("messy %s lookup type %a and %a",what,lookuptype,oldtype)
+       end
+       oldtype=lookuptype
+      end
+      if not step then
+       report("unsupported %s lookup type %a",what,lookuptype)
+      else
+       nofsteps=nofsteps+1
+       steps[nofsteps]=step
+       local rules=step.rules
+       if rules then
+        for i=1,#rules do
+         local rule=rules[i]
+         local before=rule.before
+         local current=rule.current
+         local after=rule.after
+         local replacements=rule.replacements
+         if before then
+          for i=1,#before do
+           before[i]=tohash(before[i])
+          end
+          rule.before=reversed(before)
+         end
+         if current then
+          if replacements then
+           local first=current[1]
+           local hash={}
+           local repl={}
+           for i=1,#first do
+            local c=first[i]
+            hash[c]=true
+            repl[c]=replacements[i]
+           end
+           rule.current={ hash }
+           rule.replacements=repl
+          else
+           for i=1,#current do
+            current[i]=tohash(current[i])
+           end
+          end
+         else
+         end
+         if after then
+          for i=1,#after do
+           after[i]=tohash(after[i])
+          end
+         end
+         if usedlookups then
+          local lookups=rule.lookups
+          if lookups then
+           for k,v in next,lookups do
+            if v then
+             for k,v in next,v do
+              usedlookups[v]=usedlookups[v]+1
+             end
+            end
+           end
+          end
+         end
+        end
+       end
+      end
+     end
+     if nofsteps~=nofsubtables then
+      report("bogus subtables removed in %s lookup type %a",what,lookuptype)
+     end
+     lookuptype=lookupnames[lookuptype] or lookuptype
+     if features then
+      nofsequences=nofsequences+1
+      local l={
+       index=nofsequences,
+       name=f_lookupname(lookupprefix,"s",lookupid+lookupidoffset),
+       steps=steps,
+       nofsteps=nofsteps,
+       type=lookuptype,
+       markclass=markclass or nil,
+       flags=flags,
+       order=order,
+       features=features,
+      }
+      sequences[nofsequences]=l
+      lookup.done=l
+     else
+      nofsublookups=nofsublookups+1
+      local l={
+       index=nofsublookups,
+       name=f_lookupname(lookupprefix,"l",lookupid+lookupidoffset),
+       steps=steps,
+       nofsteps=nofsteps,
+       type=lookuptype,
+       markclass=markclass or nil,
+       flags=flags,
+      }
+      sublookuplist[nofsublookups]=l
+      sublookuphash[lookupid]=nofsublookups
+      sublookupcheck[lookupid]=0
+      lookup.done=l
+     end
+    else
+     report("no subtables for lookup %a",lookupid)
+    end
+   else
+    report("no handler for lookup %a with type %a",lookupid,lookuptype)
+   end
+  end
+  if usedlookups then
+   report("used %s lookups: % t",what,sortedkeys(usedlookups))
+  end
+  local reported={}
+  local function report_issue(i,what,sequence,kind)
+   local name=sequence.name
+   if not reported[name] then
+    report("rule %i in %s lookup %a has %s lookups",i,what,name,kind)
+    reported[name]=true
+   end
+  end
+  for i=lastsequence+1,nofsequences do
+   local sequence=sequences[i]
+   local steps=sequence.steps
+   for i=1,#steps do
+    local step=steps[i]
+    local rules=step.rules
+    if rules then
+     for i=1,#rules do
+      local rule=rules[i]
+      local rlookups=rule.lookups
+      if not rlookups then
+       report_issue(i,what,sequence,"no")
+      elseif not next(rlookups) then
+       rule.lookups=nil
+      else
+       local length=#rlookups
+       for index=1,length do
+        local lookuplist=rlookups[index]
+        if lookuplist then
+         local length=#lookuplist
+         local found={}
+         local noffound=0
+         for index=1,length do
+          local lookupid=lookuplist[index]
+          if lookupid then
+           local h=sublookuphash[lookupid]
+           if not h then
+            local lookup=lookups[lookupid]
+            if lookup then
+             local d=lookup.done
+             if d then
+              nofsublookups=nofsublookups+1
+              local l={
+               index=nofsublookups,
+               name=f_lookupname(lookupprefix,"d",lookupid+lookupidoffset),
+               derived=true,
+               steps=d.steps,
+               nofsteps=d.nofsteps,
+               type=d.lookuptype or "gsub_single",
+               markclass=d.markclass or nil,
+               flags=d.flags,
+              }
+              sublookuplist[nofsublookups]=copy(l) 
+              sublookuphash[lookupid]=nofsublookups
+              sublookupcheck[lookupid]=1
+              h=nofsublookups
+             else
+              report_issue(i,what,sequence,"missing")
+              rule.lookups=nil
+              break
+             end
+            else
+             report_issue(i,what,sequence,"bad")
+             rule.lookups=nil
+             break
+            end
+           else
+            sublookupcheck[lookupid]=sublookupcheck[lookupid]+1
+           end
+           if h then
+            noffound=noffound+1
+            found[noffound]=h
+           end
+          end
+         end
+         rlookups[index]=noffound>0 and found or false
+        else
+         rlookups[index]=false
+        end
+       end
+      end
+     end
+    end
+   end
+  end
+  for i,n in sortedhash(sublookupcheck) do
+   local l=lookups[i]
+   local t=l.type
+   if n==0 and t~="extension" then
+    local d=l.done
+    report("%s lookup %s of type %a is not used",what,d and d.name or l.name,t)
+   end
+  end
+ end
+ local function loadvariations(f,fontdata,variationsoffset,lookuptypes,featurehash,featureorder)
+  setposition(f,variationsoffset)
+  local version=readulong(f) 
+  local nofrecords=readulong(f)
+  local records={}
+  for i=1,nofrecords do
+   records[i]={
+    conditions=readulong(f),
+    substitutions=readulong(f),
+   }
+  end
+  for i=1,nofrecords do
+   local record=records[i]
+   local offset=record.conditions
+   if offset==0 then
+    record.condition=nil
+    record.matchtype="always"
+   else
+    local offset=variationsoffset+offset
+    setposition(f,offset)
+    local nofconditions=readushort(f)
+    local conditions={}
+    for i=1,nofconditions do
+     conditions[i]=offset+readulong(f)
+    end
+    record.conditions=conditions
+    record.matchtype="condition"
+   end
+  end
+  for i=1,nofrecords do
+   local record=records[i]
+   if record.matchtype=="condition" then
+    local conditions=record.conditions
+    for i=1,#conditions do
+     setposition(f,conditions[i])
+     conditions[i]={
+      format=readushort(f),
+      axis=readushort(f),
+      minvalue=read2dot14(f),
+      maxvalue=read2dot14(f),
+     }
+    end
+   end
+  end
+  for i=1,nofrecords do
+   local record=records[i]
+   local offset=record.substitutions
+   if offset==0 then
+    record.substitutions={}
+   else
+    setposition(f,variationsoffset+offset)
+    local version=readulong(f)
+    local nofsubstitutions=readushort(f)
+    local substitutions={}
+    for i=1,nofsubstitutions do
+     substitutions[readushort(f)]=readulong(f)
+    end
+    for index,alternates in sortedhash(substitutions) do
+     if index==0 then
+      record.substitutions=false
+     else
+      local tableoffset=variationsoffset+offset+alternates
+      setposition(f,tableoffset)
+      local parameters=readulong(f) 
+      local noflookups=readushort(f)
+      local lookups=readcardinaltable(f,noflookups,ushort)
+      record.substitutions=lookups
+     end
+    end
+   end
+  end
+  setvariabledata(fontdata,"features",records)
+ end
+ local function readscripts(f,fontdata,what,lookuptypes,lookuphandlers,lookupstoo)
+  local tableoffset=gotodatatable(f,fontdata,what,true)
+  if tableoffset then
+   local version=readulong(f)
+   local scriptoffset=tableoffset+readushort(f)
+   local featureoffset=tableoffset+readushort(f)
+   local lookupoffset=tableoffset+readushort(f)
+   local variationsoffset=version>0x00010000 and (tableoffset+readulong(f)) or 0
+   if not scriptoffset then
+    return
+   end
+   local scripts=readscriplan(f,fontdata,scriptoffset)
+   local features=readfeatures(f,fontdata,featureoffset)
+   local scriptlangs,featurehash,featureorder=reorderfeatures(fontdata,scripts,features)
+   if fontdata.features then
+    fontdata.features[what]=scriptlangs
+   else
+    fontdata.features={ [what]=scriptlangs }
+   end
+   if not lookupstoo then
+    return
+   end
+   local lookups=readlookups(f,lookupoffset,lookuptypes,featurehash,featureorder)
+   if lookups then
+    resolvelookups(f,lookupoffset,fontdata,lookups,lookuptypes,lookuphandlers,what,tableoffset)
+   end
+   if variationsoffset>0 then
+    loadvariations(f,fontdata,variationsoffset,lookuptypes,featurehash,featureorder)
+   end
+  end
+ end
+ local function checkkerns(f,fontdata,specification)
+  local datatable=fontdata.tables.kern
+  if not datatable then
+   return 
+  end
+  local features=fontdata.features
+  local gposfeatures=features and features.gpos
+  local name
+  if not gposfeatures or not gposfeatures.kern then
+   name="kern"
+  elseif specification.globalkerns then
+   name="globalkern"
+  else
+   report("ignoring global kern table, using gpos kern feature")
+   return
+  end
+  setposition(f,datatable.offset)
+  local version=readushort(f)
+  local noftables=readushort(f)
+  if noftables>1 then
+   report("adding global kern table as gpos feature %a",name)
+   local kerns=setmetatableindex("table")
+   for i=1,noftables do
+    local version=readushort(f)
+    local length=readushort(f)
+    local coverage=readushort(f)
+    local format=rshift(coverage,8) 
+    if format==0 then
+     local nofpairs=readushort(f)
+     local searchrange=readushort(f)
+     local entryselector=readushort(f)
+     local rangeshift=readushort(f)
+     for i=1,nofpairs do
+      kerns[readushort(f)][readushort(f)]=readfword(f)
+     end
+    elseif format==2 then
+    else
+    end
+   end
+   local feature={ dflt={ dflt=true } }
+   if not features then
+    fontdata.features={ gpos={ [name]=feature } }
+   elseif not gposfeatures then
+    fontdata.features.gpos={ [name]=feature }
+   else
+    gposfeatures[name]=feature
+   end
+   local sequences=fontdata.sequences
+   if not sequences then
+    sequences={}
+    fontdata.sequences=sequences
+   end
+   local nofsequences=#sequences+1
+   sequences[nofsequences]={
+    index=nofsequences,
+    name=name,
+    steps={
+     {
+      coverage=kerns,
+      format="kern",
+     },
+    },
+    nofsteps=1,
+    type="gpos_pair",
+    flags={ false,false,false,false },
+    order={ name },
+    features={ [name]=feature },
+   }
+  else
+   report("ignoring empty kern table of feature %a",name)
+  end
+ end
+ function readers.gsub(f,fontdata,specification)
+  if specification.details then
+   readscripts(f,fontdata,"gsub",gsubtypes,gsubhandlers,specification.lookups)
+  end
+ end
+ function readers.gpos(f,fontdata,specification)
+  if specification.details then
+   readscripts(f,fontdata,"gpos",gpostypes,gposhandlers,specification.lookups)
+   if specification.lookups then
+    checkkerns(f,fontdata,specification)
+   end
+  end
+ end
+end
+function readers.gdef(f,fontdata,specification)
+ if not specification.glyphs then
+  return
+ end
+ local datatable=fontdata.tables.gdef
+ if datatable then
+  local tableoffset=datatable.offset
+  setposition(f,tableoffset)
+  local version=readulong(f)
+  local classoffset=readushort(f)
+  local attachmentoffset=readushort(f) 
+  local ligaturecarets=readushort(f) 
+  local markclassoffset=readushort(f)
+  local marksetsoffset=version>=0x00010002 and readushort(f) or 0
+  local varsetsoffset=version>=0x00010003 and readulong(f) or 0
+  local glyphs=fontdata.glyphs
+  local marks={}
+  local markclasses=setmetatableindex("table")
+  local marksets=setmetatableindex("table")
+  fontdata.marks=marks
+  fontdata.markclasses=markclasses
+  fontdata.marksets=marksets
+  if classoffset~=0 then
+   setposition(f,tableoffset+classoffset)
+   local classformat=readushort(f)
+   if classformat==1 then
+    local firstindex=readushort(f)
+    local lastindex=firstindex+readushort(f)-1
+    for index=firstindex,lastindex do
+     local class=classes[readushort(f)]
+     if class=="mark" then
+      marks[index]=true
+     end
+     glyphs[index].class=class
+    end
+   elseif classformat==2 then
+    local nofranges=readushort(f)
+    for i=1,nofranges do
+     local firstindex=readushort(f)
+     local lastindex=readushort(f)
+     local class=classes[readushort(f)]
+     if class then
+      for index=firstindex,lastindex do
+       glyphs[index].class=class
+       if class=="mark" then
+        marks[index]=true
+       end
+      end
+     end
+    end
+   end
+  end
+  if markclassoffset~=0 then
+   setposition(f,tableoffset+markclassoffset)
+   local classformat=readushort(f)
+   if classformat==1 then
+    local firstindex=readushort(f)
+    local lastindex=firstindex+readushort(f)-1
+    for index=firstindex,lastindex do
+     markclasses[readushort(f)][index]=true
+    end
+   elseif classformat==2 then
+    local nofranges=readushort(f)
+    for i=1,nofranges do
+     local firstindex=readushort(f)
+     local lastindex=readushort(f)
+     local class=markclasses[readushort(f)]
+     for index=firstindex,lastindex do
+      class[index]=true
+     end
+    end
+   end
+  end
+  if marksetsoffset~=0 then
+   marksetsoffset=tableoffset+marksetsoffset
+   setposition(f,marksetsoffset)
+   local format=readushort(f)
+   if format==1 then
+    local nofsets=readushort(f)
+    local sets=readcardinaltable(f,nofsets,ulong)
+    for i=1,nofsets do
+     local offset=sets[i]
+     if offset~=0 then
+      marksets[i]=readcoverage(f,marksetsoffset+offset)
+     end
+    end
+   end
+  end
+  local factors=specification.factors
+  if (specification.variable or factors) and varsetsoffset~=0 then
+   local regions,deltas=readvariationdata(f,tableoffset+varsetsoffset,factors)
+   if factors then
+    fontdata.temporary.getdelta=function(outer,inner)
+     local delta=deltas[outer+1]
+     if delta then
+      local d=delta.deltas[inner+1]
+      if d then
+       local scales=delta.scales
+       local dd=0
+       for i=1,#scales do
+        local di=d[i]
+        if di then
+         dd=dd+scales[i]*di
+        else
+         break
+        end
+       end
+       return round(dd)
+      end
+     end
+     return 0
+    end
+   end
+  end
+ end
+end
+local function readmathvalue(f)
+ local v=readshort(f)
+ skipshort(f,1) 
+ return v
+end
+local function readmathconstants(f,fontdata,offset)
+ setposition(f,offset)
+ fontdata.mathconstants={
+  ScriptPercentScaleDown=readshort(f),
+  ScriptScriptPercentScaleDown=readshort(f),
+  DelimitedSubFormulaMinHeight=readushort(f),
+  DisplayOperatorMinHeight=readushort(f),
+  MathLeading=readmathvalue(f),
+  AxisHeight=readmathvalue(f),
+  AccentBaseHeight=readmathvalue(f),
+  FlattenedAccentBaseHeight=readmathvalue(f),
+  SubscriptShiftDown=readmathvalue(f),
+  SubscriptTopMax=readmathvalue(f),
+  SubscriptBaselineDropMin=readmathvalue(f),
+  SuperscriptShiftUp=readmathvalue(f),
+  SuperscriptShiftUpCramped=readmathvalue(f),
+  SuperscriptBottomMin=readmathvalue(f),
+  SuperscriptBaselineDropMax=readmathvalue(f),
+  SubSuperscriptGapMin=readmathvalue(f),
+  SuperscriptBottomMaxWithSubscript=readmathvalue(f),
+  SpaceAfterScript=readmathvalue(f),
+  UpperLimitGapMin=readmathvalue(f),
+  UpperLimitBaselineRiseMin=readmathvalue(f),
+  LowerLimitGapMin=readmathvalue(f),
+  LowerLimitBaselineDropMin=readmathvalue(f),
+  StackTopShiftUp=readmathvalue(f),
+  StackTopDisplayStyleShiftUp=readmathvalue(f),
+  StackBottomShiftDown=readmathvalue(f),
+  StackBottomDisplayStyleShiftDown=readmathvalue(f),
+  StackGapMin=readmathvalue(f),
+  StackDisplayStyleGapMin=readmathvalue(f),
+  StretchStackTopShiftUp=readmathvalue(f),
+  StretchStackBottomShiftDown=readmathvalue(f),
+  StretchStackGapAboveMin=readmathvalue(f),
+  StretchStackGapBelowMin=readmathvalue(f),
+  FractionNumeratorShiftUp=readmathvalue(f),
+  FractionNumeratorDisplayStyleShiftUp=readmathvalue(f),
+  FractionDenominatorShiftDown=readmathvalue(f),
+  FractionDenominatorDisplayStyleShiftDown=readmathvalue(f),
+  FractionNumeratorGapMin=readmathvalue(f),
+  FractionNumeratorDisplayStyleGapMin=readmathvalue(f),
+  FractionRuleThickness=readmathvalue(f),
+  FractionDenominatorGapMin=readmathvalue(f),
+  FractionDenominatorDisplayStyleGapMin=readmathvalue(f),
+  SkewedFractionHorizontalGap=readmathvalue(f),
+  SkewedFractionVerticalGap=readmathvalue(f),
+  OverbarVerticalGap=readmathvalue(f),
+  OverbarRuleThickness=readmathvalue(f),
+  OverbarExtraAscender=readmathvalue(f),
+  UnderbarVerticalGap=readmathvalue(f),
+  UnderbarRuleThickness=readmathvalue(f),
+  UnderbarExtraDescender=readmathvalue(f),
+  RadicalVerticalGap=readmathvalue(f),
+  RadicalDisplayStyleVerticalGap=readmathvalue(f),
+  RadicalRuleThickness=readmathvalue(f),
+  RadicalExtraAscender=readmathvalue(f),
+  RadicalKernBeforeDegree=readmathvalue(f),
+  RadicalKernAfterDegree=readmathvalue(f),
+  RadicalDegreeBottomRaisePercent=readshort(f),
+ }
+end
+local function readmathglyphinfo(f,fontdata,offset)
+ setposition(f,offset)
+ local italics=readushort(f)
+ local accents=readushort(f)
+ local extensions=readushort(f)
+ local kerns=readushort(f)
+ local glyphs=fontdata.glyphs
+ if italics~=0 then
+  setposition(f,offset+italics)
+  local coverage=readushort(f)
+  local nofglyphs=readushort(f)
+  coverage=readcoverage(f,offset+italics+coverage,true)
+  setposition(f,offset+italics+4)
+  for i=1,nofglyphs do
+   local italic=readmathvalue(f)
+   if italic~=0 then
+    local glyph=glyphs[coverage[i]]
+    local math=glyph.math
+    if not math then
+     glyph.math={ italic=italic }
+    else
+     math.italic=italic
+    end
+   end
+  end
+  fontdata.hasitalics=true
+ end
+ if accents~=0 then
+  setposition(f,offset+accents)
+  local coverage=readushort(f)
+  local nofglyphs=readushort(f)
+  coverage=readcoverage(f,offset+accents+coverage,true)
+  setposition(f,offset+accents+4)
+  for i=1,nofglyphs do
+   local accent=readmathvalue(f)
+   if accent~=0 then
+    local glyph=glyphs[coverage[i]]
+    local math=glyph.math
+    if not math then
+     glyph.math={ accent=accent }
+    else
+     math.accent=accent
+    end
+   end
+  end
+ end
+ if extensions~=0 then
+  setposition(f,offset+extensions)
+ end
+ if kerns~=0 then
+  local kernoffset=offset+kerns
+  setposition(f,kernoffset)
+  local coverage=readushort(f)
+  local nofglyphs=readushort(f)
+  if nofglyphs>0 then
+   local function get(offset)
+    setposition(f,kernoffset+offset)
+    local n=readushort(f)
+    if n==0 then
+     local k=readmathvalue(f)
+     if k==0 then
+     else
+      return { { kern=k } }
+     end
+    else
+     local l={}
+     for i=1,n do
+      l[i]={ height=readmathvalue(f) }
+     end
+     for i=1,n do
+      l[i].kern=readmathvalue(f)
+     end
+     l[n+1]={ kern=readmathvalue(f) }
+     return l
+    end
+   end
+   local kernsets={}
+   for i=1,nofglyphs do
+    local topright=readushort(f)
+    local topleft=readushort(f)
+    local bottomright=readushort(f)
+    local bottomleft=readushort(f)
+    kernsets[i]={
+     topright=topright~=0 and topright or nil,
+     topleft=topleft~=0 and topleft  or nil,
+     bottomright=bottomright~=0 and bottomright or nil,
+     bottomleft=bottomleft~=0 and bottomleft  or nil,
+    }
+   end
+   coverage=readcoverage(f,kernoffset+coverage,true)
+   for i=1,nofglyphs do
+    local kernset=kernsets[i]
+    if next(kernset) then
+     local k=kernset.topright if k then kernset.topright=get(k) end
+     local k=kernset.topleft  if k then kernset.topleft=get(k) end
+     local k=kernset.bottomright if k then kernset.bottomright=get(k) end
+     local k=kernset.bottomleft  if k then kernset.bottomleft=get(k) end
+     if next(kernset) then
+      local glyph=glyphs[coverage[i]]
+      local math=glyph.math
+      if math then
+       math.kerns=kernset
+      else
+       glyph.math={ kerns=kernset }
+      end
+     end
+    end
+   end
+  end
+ end
+end
+local function readmathvariants(f,fontdata,offset)
+ setposition(f,offset)
+ local glyphs=fontdata.glyphs
+ local minoverlap=readushort(f)
+ local vcoverage=readushort(f)
+ local hcoverage=readushort(f)
+ local vnofglyphs=readushort(f)
+ local hnofglyphs=readushort(f)
+ local vconstruction=readcardinaltable(f,vnofglyphs,ushort)
+ local hconstruction=readcardinaltable(f,hnofglyphs,ushort)
+ fontdata.mathconstants.MinConnectorOverlap=minoverlap
+ local function get(offset,coverage,nofglyphs,construction,kvariants,kparts,kitalic)
+  if coverage~=0 and nofglyphs>0 then
+   local coverage=readcoverage(f,offset+coverage,true)
+   for i=1,nofglyphs do
+    local c=construction[i]
+    if c~=0 then
+     local index=coverage[i]
+     local glyph=glyphs[index]
+     local math=glyph.math
+     setposition(f,offset+c)
+     local assembly=readushort(f)
+     local nofvariants=readushort(f)
+     if nofvariants>0 then
+      local variants,v=nil,0
+      for i=1,nofvariants do
+       local variant=readushort(f)
+       if variant==index then
+       elseif variants then
+        v=v+1
+        variants[v]=variant
+       else
+        v=1
+        variants={ variant }
+       end
+       skipshort(f)
+      end
+      if not variants then
+      elseif not math then
+       math={ [kvariants]=variants }
+       glyph.math=math
+      else
+       math[kvariants]=variants
+      end
+     end
+     if assembly~=0 then
+      setposition(f,offset+c+assembly)
+      local italic=readmathvalue(f)
+      local nofparts=readushort(f)
+      local parts={}
+      for i=1,nofparts do
+       local p={
+        glyph=readushort(f),
+        start=readushort(f),
+        ["end"]=readushort(f),
+        advance=readushort(f),
+       }
+       local flags=readushort(f)
+       if band(flags,0x0001)~=0 then
+        p.extender=1 
+       end
+       parts[i]=p
+      end
+      if not math then
+       math={
+        [kparts]=parts
+       }
+       glyph.math=math
+      else
+       math[kparts]=parts
+      end
+      if italic and italic~=0 then
+       math[kitalic]=italic
+      end
+     end
+    end
+   end
+  end
+ end
+ get(offset,vcoverage,vnofglyphs,vconstruction,"vvariants","vparts","vitalic")
+ get(offset,hcoverage,hnofglyphs,hconstruction,"hvariants","hparts","hitalic")
+end
+function readers.math(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"math",specification.glyphs)
+ if tableoffset then
+  local version=readulong(f)
+  local constants=readushort(f)
+  local glyphinfo=readushort(f)
+  local variants=readushort(f)
+  if constants==0 then
+   report("the math table of %a has no constants",fontdata.filename)
+  else
+   readmathconstants(f,fontdata,tableoffset+constants)
+  end
+  if glyphinfo~=0 then
+   readmathglyphinfo(f,fontdata,tableoffset+glyphinfo)
+  end
+  if variants~=0 then
+   readmathvariants(f,fontdata,tableoffset+variants)
+  end
+ end
+end
+function readers.colr(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"colr",specification.glyphs)
+ if tableoffset then
+  local version=readushort(f)
+  if version~=0 then
+   report("table version %a of %a is not supported (yet), maybe font %s is bad",version,"colr",fontdata.filename)
+   return
+  end
+  if not fontdata.tables.cpal then
+   report("color table %a in font %a has no mandate %a table","colr",fontdata.filename,"cpal")
+   fontdata.colorpalettes={}
+  end
+  local glyphs=fontdata.glyphs
+  local nofglyphs=readushort(f)
+  local baseoffset=readulong(f)
+  local layeroffset=readulong(f)
+  local noflayers=readushort(f)
+  local layerrecords={}
+  local maxclass=0
+  setposition(f,tableoffset+layeroffset)
+  for i=1,noflayers do
+   local slot=readushort(f)
+   local class=readushort(f)
+   if class<0xFFFF then
+    class=class+1
+    if class>maxclass then
+     maxclass=class
+    end
+   end
+   layerrecords[i]={
+    slot=slot,
+    class=class,
+   }
+  end
+  fontdata.maxcolorclass=maxclass
+  setposition(f,tableoffset+baseoffset)
+  for i=0,nofglyphs-1 do
+   local glyphindex=readushort(f)
+   local firstlayer=readushort(f)
+   local noflayers=readushort(f)
+   local t={}
+   for i=1,noflayers do
+    t[i]=layerrecords[firstlayer+i]
+   end
+   glyphs[glyphindex].colors=t
+  end
+ end
+ fontdata.hascolor=true
+end
+function readers.cpal(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"cpal",specification.glyphs)
+ if tableoffset then
+  local version=readushort(f)
+  local nofpaletteentries=readushort(f)
+  local nofpalettes=readushort(f)
+  local nofcolorrecords=readushort(f)
+  local firstcoloroffset=readulong(f)
+  local colorrecords={}
+  local palettes=readcardinaltable(f,nofpalettes,ushort)
+  if version==1 then
+   local palettettypesoffset=readulong(f)
+   local palettelabelsoffset=readulong(f)
+   local paletteentryoffset=readulong(f)
+  end
+  setposition(f,tableoffset+firstcoloroffset)
+  for i=1,nofcolorrecords do
+   local b,g,r,a=readbytes(f,4)
+   colorrecords[i]={
+    r,g,b,a~=255 and a or nil,
+   }
+  end
+  for i=1,nofpalettes do
+   local p={}
+   local o=palettes[i]
+   for j=1,nofpaletteentries do
+    p[j]=colorrecords[o+j]
+   end
+   palettes[i]=p
+  end
+  fontdata.colorpalettes=palettes
+ end
+end
+function readers.svg(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"svg",specification.glyphs)
+ if tableoffset then
+  local version=readushort(f)
+  local glyphs=fontdata.glyphs
+  local indexoffset=tableoffset+readulong(f)
+  local reserved=readulong(f)
+  setposition(f,indexoffset)
+  local nofentries=readushort(f)
+  local entries={}
+  for i=1,nofentries do
+   entries[i]={
+    first=readushort(f),
+    last=readushort(f),
+    offset=indexoffset+readulong(f),
+    length=readulong(f),
+   }
+  end
+  for i=1,nofentries do
+   local entry=entries[i]
+   setposition(f,entry.offset)
+   entries[i]={
+    first=entry.first,
+    last=entry.last,
+    data=readstring(f,entry.length)
+   }
+  end
+  fontdata.svgshapes=entries
+ end
+ fontdata.hascolor=true
+end
+function readers.sbix(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"sbix",specification.glyphs)
+ if tableoffset then
+  local version=readushort(f)
+  local flags=readushort(f)
+  local nofstrikes=readulong(f)
+  local strikes={}
+  local nofglyphs=fontdata.nofglyphs
+  for i=1,nofstrikes do
+   strikes[i]=readulong(f)
+  end
+  local shapes={}
+  local done=0
+  for i=1,nofstrikes do
+   local strikeoffset=strikes[i]+tableoffset
+   setposition(f,strikeoffset)
+   strikes[i]={
+    ppem=readushort(f),
+    ppi=readushort(f),
+    offset=strikeoffset
+   }
+  end
+  sort(strikes,function(a,b)
+   if b.ppem==a.ppem then
+    return b.ppi<a.ppi
+   else
+    return b.ppem<a.ppem
+   end
+  end)
+  local glyphs={}
+  for i=1,nofstrikes do
+   local strike=strikes[i]
+   local strikeppem=strike.ppem
+   local strikeppi=strike.ppi
+   local strikeoffset=strike.offset
+   setposition(f,strikeoffset)
+   for i=0,nofglyphs do
+    glyphs[i]=readulong(f)
+   end
+   local glyphoffset=glyphs[0]
+   for i=0,nofglyphs-1 do
+    local nextoffset=glyphs[i+1]
+    if not shapes[i] then
+     local datasize=nextoffset-glyphoffset
+     if datasize>0 then
+      setposition(f,strikeoffset+glyphoffset)
+      shapes[i]={
+       x=readshort(f),
+       y=readshort(f),
+       tag=readtag(f),
+       data=readstring(f,datasize-8),
+       ppem=strikeppem,
+       ppi=strikeppi,
+      }
+      done=done+1
+      if done==nofglyphs then
+       break
+      end
+     end
+    end
+    glyphoffset=nextoffset
+   end
+  end
+  fontdata.pngshapes=shapes
+ end
+end
+do
+ local function getmetrics(f)
+  return {
+   ascender=readinteger(f),
+   descender=readinteger(f),
+   widthmax=readuinteger(f),
+   caretslopedumerator=readinteger(f),
+   caretslopedenominator=readinteger(f),
+   caretoffset=readinteger(f),
+   minorigin=readinteger(f),
+   minadvance=readinteger(f),
+   maxbefore=readinteger(f),
+   minafter=readinteger(f),
+   pad1=readinteger(f),
+   pad2=readinteger(f),
+  }
+ end
+ local function getbigmetrics(f)
+  return {
+   height=readuinteger(f),
+   width=readuinteger(f),
+   horiBearingX=readinteger(f),
+   horiBearingY=readinteger(f),
+   horiAdvance=readuinteger(f),
+   vertBearingX=readinteger(f),
+   vertBearingY=readinteger(f),
+   vertAdvance=readuinteger(f),
+  }
+ end
+ local function getsmallmetrics(f)
+  return {
+   height=readuinteger(f),
+   width=readuinteger(f),
+   bearingX=readinteger(f),
+   bearingY=readinteger(f),
+   advance=readuinteger(f),
+  }
+ end
+ function readers.cblc(f,fontdata,specification)
+  local ctdttableoffset=gotodatatable(f,fontdata,"cbdt",specification.glyphs)
+  if not ctdttableoffset then
+   return
+  end
+  local cblctableoffset=gotodatatable(f,fontdata,"cblc",specification.glyphs)
+  if cblctableoffset then
+   local majorversion=readushort(f)
+   local minorversion=readushort(f)
+   local nofsizetables=readulong(f)
+   local sizetables={}
+   local shapes={}
+   local subtables={}
+   for i=1,nofsizetables do
+    sizetables[i]={
+     subtables=readulong(f),
+     indexsize=readulong(f),
+     nofsubtables=readulong(f),
+     colorref=readulong(f),
+     hormetrics=getmetrics(f),
+     vermetrics=getmetrics(f),
+     firstindex=readushort(f),
+     lastindex=readushort(f),
+     ppemx=readbyte(f),
+     ppemy=readbyte(f),
+     bitdepth=readbyte(f),
+     flags=readbyte(f),
+    }
+   end
+   sort(sizetables,function(a,b)
+    if b.ppemx==a.ppemx then
+     return b.bitdepth<a.bitdepth
+    else
+     return b.ppemx<a.ppemx
+    end
+   end)
+   for i=1,nofsizetables do
+    local s=sizetables[i]
+    local d=false
+    for j=s.firstindex,s.lastindex do
+     if not shapes[j] then
+      shapes[j]=i
+      d=true
+     end
+    end
+    if d then
+     s.used=true
+    end
+   end
+   for i=1,nofsizetables do
+    local s=sizetables[i]
+    if s.used then
+     local offset=s.subtables
+     setposition(f,cblctableoffset+offset)
+     for j=1,s.nofsubtables do
+      local firstindex=readushort(f)
+      local lastindex=readushort(f)
+      local tableoffset=readulong(f)+offset
+      for k=firstindex,lastindex do
+       if shapes[k]==i then
+        local s=subtables[tableoffset]
+        if not s then
+         s={
+          firstindex=firstindex,
+          lastindex=lastindex,
+         }
+         subtables[tableoffset]=s
+        end
+        shapes[k]=s
+       end
+      end
+     end
+    end
+   end
+   for offset,subtable in sortedhash(subtables) do
+    local tabletype=readushort(f)
+    subtable.format=readushort(f)
+    local baseoffset=readulong(f)+ctdttableoffset
+    local offsets={}
+    local metrics=nil
+    if tabletype==1 then
+     for i=subtable.firstindex,subtable.lastindex do
+      offsets[i]=readulong(f)+baseoffset
+     end
+     skipbytes(f,4)
+    elseif tabletype==2 then
+     local size=readulong(f)
+     local done=baseoffset
+     metrics=getbigmetrics(f)
+     for i=subtable.firstindex,subtable.lastindex do
+      offsets[i]=done
+      done=done+size
+     end
+    elseif tabletype==3 then
+     local n=subtable.lastindex-subtable.firstindex+2
+     for i=subtable.firstindex,subtable.lastindex do
+      offsets[i]=readushort(f)+baseoffset
+     end
+     if math.odd(n) then
+      skipbytes(f,4)
+     else
+      skipbytes(f,2)
+     end
+    elseif tabletype==4 then
+     for i=1,readulong(f) do
+      offsets[readushort(f)]=readushort(f)+baseoffset
+     end
+    elseif tabletype==5 then
+     local size=readulong(f)
+     local done=baseoffset
+     metrics=getbigmetrics(f)
+     local n=readulong(f)
+     for i=1,n do
+      offsets[readushort(f)]=done
+      done=done+size
+     end
+     if math.odd(n) then
+      skipbytes(f,2)
+     end
+    else
+     return 
+    end
+    subtable.offsets=offsets
+    subtable.metrics=metrics
+   end
+   local default={ width=0,height=0 }
+   local glyphs=fontdata.glyphs
+   for index,subtable in sortedhash(shapes) do
+    if type(subtable)=="table" then
+     local data=nil
+     local metrics=default
+     local format=subtable.format
+     local offset=subtable.offsets[index]
+     setposition(f,offset)
+     if format==17 then
+      metrics=getsmallmetrics(f)
+      data=readstring(f,readulong(f))
+     elseif format==18 then
+      metrics=getbigmetrics(f)
+      data=readstring(f,readulong(f))
+     elseif format==19 then
+      metrics=subtable.metrics
+      data=readstring(f,readulong(f))
+     else
+     end
+     local x=metrics.width
+     local y=metrics.height
+     shapes[index]={
+      x=x,
+      y=y,
+      data=data,
+     }
+     local glyph=glyphs[index]
+     if not glyph.boundingbox then
+      local width=glyph.width
+      local height=width*y/x
+      glyph.boundingbox={ 0,0,width,height }
+     end
+    else
+     shapes[index]={
+      x=0,
+      y=0,
+      data="",
+     }
+    end
+   end
+   fontdata.pngshapes=shapes 
+  end
+ end
+ function readers.cbdt(f,fontdata,specification)
+ end
+end
+function readers.stat(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"stat",true) 
+ if tableoffset then
+  local extras=fontdata.extras
+  local version=readulong(f) 
+  local axissize=readushort(f)
+  local nofaxis=readushort(f)
+  local axisoffset=readulong(f)
+  local nofvalues=readushort(f)
+  local valuesoffset=readulong(f)
+  local fallbackname=extras[readushort(f)] 
+  local axis={}
+  local values={}
+  setposition(f,tableoffset+axisoffset)
+  for i=1,nofaxis do
+   local tag=readtag(f)
+   axis[i]={
+    tag=tag,
+    name=lower(extras[readushort(f)] or tag),
+    ordering=readushort(f),
+    variants={}
+   }
+  end
+  setposition(f,tableoffset+valuesoffset)
+  for i=1,nofvalues do
+   values[i]=readushort(f)
+  end
+  for i=1,nofvalues do
+   setposition(f,tableoffset+valuesoffset+values[i])
+   local format=readushort(f)
+   local index=readushort(f)+1
+   local flags=readushort(f)
+   local name=lower(extras[readushort(f)] or "no name")
+   local value=readfixed(f)
+   local variant
+   if format==1 then
+    variant={
+     flags=flags,
+     name=name,
+     value=value,
+    }
+   elseif format==2 then
+    variant={
+     flags=flags,
+     name=name,
+     value=value,
+     minimum=readfixed(f),
+     maximum=readfixed(f),
+    }
+   elseif format==3 then
+    variant={
+     flags=flags,
+     name=name,
+     value=value,
+     link=readfixed(f),
+    }
+   end
+   insert(axis[index].variants,variant)
+  end
+  sort(axis,function(a,b)
+   return a.ordering<b.ordering
+  end)
+  for i=1,#axis do
+   local a=axis[i]
+   sort(a.variants,function(a,b)
+    return a.name<b.name
+   end)
+   a.ordering=nil
+  end
+  setvariabledata(fontdata,"designaxis",axis)
+  setvariabledata(fontdata,"fallbackname",fallbackname)
+ end
+end
+function readers.avar(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"avar",true) 
+ if tableoffset then
+  local function collect()
+   local nofvalues=readushort(f)
+   local values={}
+   local lastfrom=false
+   local lastto=false
+   for i=1,nofvalues do
+    local from=read2dot14(f)
+    local to=read2dot14(f)
+    if lastfrom and from<=lastfrom then
+    elseif lastto and to>=lastto then
+    else
+     values[#values+1]={ from,to }
+     lastfrom,lastto=from,to
+    end
+   end
+   nofvalues=#values
+   if nofvalues>2 then
+    local some=values[1]
+    if some[1]==-1 and some[2]==-1 then
+     some=values[nofvalues]
+     if some[1]==1 and some[2]==1 then
+      for i=2,nofvalues-1 do
+       some=values[i]
+       if some[1]==0 and some[2]==0 then
+        return values
+       end
+      end
+     end
+    end
+   end
+   return false
+  end
+  local version=readulong(f) 
+  local reserved=readushort(f)
+  local nofaxis=readushort(f)
+  local segments={}
+  for i=1,nofaxis do
+   segments[i]=collect()
+  end
+  setvariabledata(fontdata,"segments",segments)
+ end
+end
+function readers.fvar(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"fvar",true) 
+ if tableoffset then
+  local version=readulong(f) 
+  local offsettoaxis=tableoffset+readushort(f)
+  local reserved=skipshort(f)
+  local nofaxis=readushort(f)
+  local sizeofaxis=readushort(f)
+  local nofinstances=readushort(f)
+  local sizeofinstances=readushort(f)
+  local extras=fontdata.extras
+  local axis={}
+  local instances={}
+  setposition(f,offsettoaxis)
+  for i=1,nofaxis do
+   axis[i]={
+    tag=readtag(f),
+    minimum=readfixed(f),
+    default=readfixed(f),
+    maximum=readfixed(f),
+    flags=readushort(f),
+    name=lower(extras[readushort(f)] or "bad name"),
+   }
+   local n=sizeofaxis-20
+   if n>0 then
+    skipbytes(f,n)
+   elseif n<0 then
+   end
+  end
+  local nofbytes=2+2+2+nofaxis*4
+  local readpsname=nofbytes<=sizeofinstances
+  local skippable=sizeofinstances-nofbytes
+  for i=1,nofinstances do
+   local subfamid=readushort(f)
+   local flags=readushort(f) 
+   local values={}
+   for i=1,nofaxis do
+    values[i]={
+     axis=axis[i].tag,
+     value=readfixed(f),
+    }
+   end
+   local psnameid=readpsname and readushort(f) or 0xFFFF
+   if subfamid==2 or subfamid==17 then
+   elseif subfamid==0xFFFF then
+    subfamid=nil
+   elseif subfamid<=256 or subfamid>=32768 then
+    subfamid=nil 
+   end
+   if psnameid==6 then
+   elseif psnameid==0xFFFF then
+    psnameid=nil
+   elseif psnameid<=256 or psnameid>=32768 then
+    psnameid=nil 
+   end
+   instances[i]={
+    subfamily=extras[subfamid],
+    psname=psnameid and extras[psnameid] or nil,
+    values=values,
+   }
+   if skippable>0 then
+    skipbytes(f,skippable)
+   end
+  end
+  setvariabledata(fontdata,"axis",axis)
+  setvariabledata(fontdata,"instances",instances)
+ end
+end
+function readers.hvar(f,fontdata,specification)
+ local factors=specification.factors
+ if not factors then
+  return
+ end
+ local tableoffset=gotodatatable(f,fontdata,"hvar",specification.variable)
+ if not tableoffset then
+  return
+ end
+ local version=readulong(f) 
+ local variationoffset=tableoffset+readulong(f) 
+ local advanceoffset=tableoffset+readulong(f)
+ local lsboffset=tableoffset+readulong(f)
+ local rsboffset=tableoffset+readulong(f)
+ local regions={}
+ local variations={}
+ local innerindex={} 
+ local outerindex={} 
+ if variationoffset>0 then
+  regions,deltas=readvariationdata(f,variationoffset,factors)
+ end
+ if not regions then
+  return
+ end
+ if advanceoffset>0 then
+  setposition(f,advanceoffset)
+  local format=readushort(f) 
+  local mapcount=readushort(f)
+  local entrysize=rshift(band(format,0x0030),4)+1
+  local nofinnerbits=band(format,0x000F)+1 
+  local innermask=lshift(1,nofinnerbits)-1
+  local readcardinal=read_cardinal[entrysize] 
+  for i=0,mapcount-1 do
+   local mapdata=readcardinal(f)
+   outerindex[i]=rshift(mapdata,nofinnerbits)
+   innerindex[i]=band(mapdata,innermask)
+  end
+  setvariabledata(fontdata,"hvarwidths",true)
+  local glyphs=fontdata.glyphs
+  for i=0,fontdata.nofglyphs-1 do
+   local glyph=glyphs[i]
+   local width=glyph.width
+   if width then
+    local outer=outerindex[i] or 0
+    local inner=innerindex[i] or i
+    if outer and inner then 
+     local delta=deltas[outer+1]
+     if delta then
+      local d=delta.deltas[inner+1]
+      if d then
+       local scales=delta.scales
+       local deltaw=0
+       for i=1,#scales do
+        local di=d[i]
+        if di then
+         deltaw=deltaw+scales[i]*di
+        else
+         break 
+        end
+       end
+       glyph.width=width+round(deltaw)
+      end
+     end
+    end
+   end
+  end
+ end
+end
+function readers.vvar(f,fontdata,specification)
+ if not specification.variable then
+  return
+ end
+end
+function readers.mvar(f,fontdata,specification)
+ local tableoffset=gotodatatable(f,fontdata,"mvar",specification.variable)
+ if tableoffset then
+  local version=readulong(f) 
+  local reserved=skipshort(f,1)
+  local recordsize=readushort(f)
+  local nofrecords=readushort(f)
+  local offsettostore=tableoffset+readushort(f)
+  local dimensions={}
+  local factors=specification.factors
+  if factors then
+   local regions,deltas=readvariationdata(f,offsettostore,factors)
+   for i=1,nofrecords do
+    local tag=readtag(f)
+    local var=variabletags[tag]
+    if var then
+     local outer=readushort(f)
+     local inner=readushort(f)
+     local delta=deltas[outer+1]
+     if delta then
+      local d=delta.deltas[inner+1]
+      if d then
+       local scales=delta.scales
+       local dd=0
+       for i=1,#scales do
+        dd=dd+scales[i]*d[i]
+       end
+       var(fontdata,round(dd))
+      end
+     end
+    else
+     skipshort(f,2)
+    end
+    if recordsize>8 then 
+     skipbytes(recordsize-8)
+    end
+   end
+  end
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-oup']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local next,type=next,type
+local P,R,S=lpeg.P,lpeg.R,lpeg.S
+local lpegmatch=lpeg.match
+local insert,remove,copy,unpack=table.insert,table.remove,table.copy,table.unpack
+local formatters=string.formatters
+local sortedkeys=table.sortedkeys
+local sortedhash=table.sortedhash
+local tohash=table.tohash
+local setmetatableindex=table.setmetatableindex
+local report_error=logs.reporter("otf reader","error")
+local report_markwidth=logs.reporter("otf reader","markwidth")
+local report_cleanup=logs.reporter("otf reader","cleanup")
+local report_optimizations=logs.reporter("otf reader","merges")
+local report_unicodes=logs.reporter("otf reader","unicodes")
+local trace_markwidth=false  trackers.register("otf.markwidth",function(v) trace_markwidth=v end)
+local trace_cleanup=false  trackers.register("otf.cleanups",function(v) trace_cleanups=v end)
+local trace_optimizations=false  trackers.register("otf.optimizations",function(v) trace_optimizations=v end)
+local trace_unicodes=false  trackers.register("otf.unicodes",function(v) trace_unicodes=v end)
+local readers=fonts.handlers.otf.readers
+local privateoffset=fonts.constructors and fonts.constructors.privateoffset or 0xF0000 
+local f_private=formatters["P%05X"]
+local f_unicode=formatters["U%05X"]
+local f_index=formatters["I%05X"]
+local f_character_y=formatters["%C"]
+local f_character_n=formatters["[ %C ]"]
+local check_duplicates=true 
+local check_soft_hyphen=true 
+directives.register("otf.checksofthyphen",function(v)
+ check_soft_hyphen=v
+end)
+local function replaced(list,index,replacement)
+ if type(list)=="number" then
+  return replacement
+ elseif type(replacement)=="table" then
+  local t={}
+  local n=index-1
+  for i=1,n do
+   t[i]=list[i]
+  end
+  for i=1,#replacement do
+   n=n+1
+   t[n]=replacement[i]
+  end
+  for i=index+1,#list do
+   n=n+1
+   t[n]=list[i]
+  end
+ else
+  list[index]=replacement
+  return list
+ end
+end
+local function unifyresources(fontdata,indices)
+ local descriptions=fontdata.descriptions
+ local resources=fontdata.resources
+ if not descriptions or not resources then
+  return
+ end
+ local nofindices=#indices
+ local variants=fontdata.resources.variants
+ if variants then
+  for selector,unicodes in next,variants do
+   for unicode,index in next,unicodes do
+    unicodes[unicode]=indices[index]
+   end
+  end
+ end
+ local function remark(marks)
+  if marks then
+   local newmarks={}
+   for k,v in next,marks do
+    local u=indices[k]
+    if u then
+     newmarks[u]=v
+    elseif trace_optimizations then
+     report_optimizations("discarding mark %i",k)
+    end
+   end
+   return newmarks
+  end
+ end
+ local marks=resources.marks
+ if marks then
+  resources.marks=remark(marks)
+ end
+ local markclasses=resources.markclasses
+ if markclasses then
+  for class,marks in next,markclasses do
+   markclasses[class]=remark(marks)
+  end
+ end
+ local marksets=resources.marksets
+ if marksets then
+  for class,marks in next,marksets do
+   marksets[class]=remark(marks)
+  end
+ end
+ local done={}
+ local duplicates=check_duplicates and resources.duplicates
+ if duplicates and not next(duplicates) then
+  duplicates=false
+ end
+ local function recover(cover) 
+  for i=1,#cover do
+   local c=cover[i]
+   if not done[c] then
+    local t={}
+    for k,v in next,c do
+     local ug=indices[k]
+     if ug then
+      t[ug]=v
+     else
+      report_error("case %i, bad index in unifying %s: %s of %s",1,"coverage",k,nofindices)
+     end
+    end
+    cover[i]=t
+    done[c]=d
+   end
+  end
+ end
+ local function recursed(c,kind) 
+  local t={}
+  for g,d in next,c do
+   if type(d)=="table" then
+    local ug=indices[g]
+    if ug then
+     t[ug]=recursed(d,kind)
+    else
+     report_error("case %i, bad index in unifying %s: %s of %s",1,kind,g,nofindices)
+    end
+   else
+    t[g]=indices[d] 
+   end
+  end
+  return t
+ end
+ local function unifythem(sequences)
+  if not sequences then
+   return
+  end
+  for i=1,#sequences do
+   local sequence=sequences[i]
+   local kind=sequence.type
+   local steps=sequence.steps
+   local features=sequence.features
+   if steps then
+    for i=1,#steps do
+     local step=steps[i]
+     if kind=="gsub_single" then
+      local c=step.coverage
+      if c then
+       local t1=done[c]
+       if not t1 then
+        t1={}
+        if duplicates then
+         for g1,d1 in next,c do
+          local ug1=indices[g1]
+          if ug1 then
+           local ud1=indices[d1]
+           if ud1 then
+            t1[ug1]=ud1
+            local dg1=duplicates[ug1]
+            if dg1 then
+             for u in next,dg1 do
+              t1[u]=ud1
+             end
+            end
+           else
+            report_error("case %i, bad index in unifying %s: %s of %s",3,kind,d1,nofindices)
+           end
+          else
+           report_error("case %i, bad index in unifying %s: %s of %s",1,kind,g1,nofindices)
+          end
+         end
+        else
+         for g1,d1 in next,c do
+          local ug1=indices[g1]
+          if ug1 then
+           t1[ug1]=indices[d1]
+          else
+           report_error("fuzzy case %i in unifying %s: %i",2,kind,g1)
+          end
+         end
+        end
+        done[c]=t1
+       end
+       step.coverage=t1
+      end
+     elseif kind=="gpos_pair" then
+      local c=step.coverage
+      if c then
+       local t1=done[c]
+       if not t1 then
+        t1={}
+        for g1,d1 in next,c do
+         local ug1=indices[g1]
+         if ug1 then
+          local t2=done[d1]
+          if not t2 then
+           t2={}
+           for g2,d2 in next,d1 do
+            local ug2=indices[g2]
+            if ug2 then
+             t2[ug2]=d2
+            else
+             report_error("case %i, bad index in unifying %s: %s of %s",1,kind,g2,nofindices,nofindices)
+            end
+           end
+           done[d1]=t2
+          end
+          t1[ug1]=t2
+         else
+          report_error("case %i, bad index in unifying %s: %s of %s",2,kind,g1,nofindices)
+         end
+        end
+        done[c]=t1
+       end
+       step.coverage=t1
+      end
+     elseif kind=="gsub_ligature" then
+      local c=step.coverage
+      if c then
+       step.coverage=recursed(c,kind)
+      end
+     elseif kind=="gsub_alternate" or kind=="gsub_multiple" then
+      local c=step.coverage
+      if c then
+       local t1=done[c]
+       if not t1 then
+        t1={}
+        if duplicates then
+         for g1,d1 in next,c do
+          for i=1,#d1 do
+           local d1i=d1[i]
+           local d1u=indices[d1i]
+           if d1u then
+            d1[i]=d1u
+           else
+            report_error("case %i, bad index in unifying %s: %s of %s",1,kind,i,d1i,nofindices)
+           end
+          end
+          local ug1=indices[g1]
+          if ug1 then
+           t1[ug1]=d1
+           local dg1=duplicates[ug1]
+           if dg1 then
+            for u in next,dg1 do
+             t1[u]=copy(d1)
+            end
+           end
+          else
+           report_error("case %i, bad index in unifying %s: %s of %s",2,kind,g1,nofindices)
+          end
+         end
+        else
+         for g1,d1 in next,c do
+          for i=1,#d1 do
+           local d1i=d1[i]
+           local d1u=indices[d1i]
+           if d1u then
+            d1[i]=d1u
+           else
+            report_error("case %i, bad index in unifying %s: %s of %s",2,kind,d1i,nofindices)
+           end
+          end
+          t1[indices[g1]]=d1
+         end
+        end
+        done[c]=t1
+       end
+       step.coverage=t1
+      end
+     elseif kind=="gpos_single" then
+      local c=step.coverage
+      if c then
+       local t1=done[c]
+       if not t1 then
+        t1={}
+        if duplicates then
+         for g1,d1 in next,c do
+          local ug1=indices[g1]
+          if ug1 then
+           t1[ug1]=d1
+           local dg1=duplicates[ug1]
+           if dg1 then
+            for u in next,dg1 do
+             t1[u]=d1
+            end
+           end
+          else
+           report_error("case %i, bad index in unifying %s: %s of %s",1,kind,g1,nofindices)
+          end
+         end
+        else
+         for g1,d1 in next,c do
+          local ug1=indices[g1]
+          if ug1 then
+           t1[ug1]=d1
+          else
+           report_error("case %i, bad index in unifying %s: %s of %s",2,kind,g1,nofindices)
+          end
+         end
+        end
+        done[c]=t1
+       end
+       step.coverage=t1
+      end
+     elseif kind=="gpos_mark2base" or kind=="gpos_mark2mark" or kind=="gpos_mark2ligature" then
+      local c=step.coverage
+      if c then
+       local t1=done[c]
+       if not t1 then
+        t1={}
+        for g1,d1 in next,c do
+         local ug1=indices[g1]
+         if ug1 then
+          t1[ug1]=d1
+         else
+          report_error("case %i, bad index in unifying %s: %s of %s",1,kind,g1,nofindices)
+         end
+        end
+        done[c]=t1
+       end
+       step.coverage=t1
+      end
+      local c=step.baseclasses
+      if c then
+       local t1=done[c]
+       if not t1 then
+        for g1,d1 in next,c do
+         local t2=done[d1]
+         if not t2 then
+          t2={}
+          for g2,d2 in next,d1 do
+           local ug2=indices[g2]
+           if ug2 then
+            t2[ug2]=d2
+           else
+            report_error("case %i, bad index in unifying %s: %s of %s",2,kind,g2,nofindices)
+           end
+          end
+          done[d1]=t2
+         end
+         c[g1]=t2
+        end
+        done[c]=c
+       end
+      end
+     elseif kind=="gpos_cursive" then
+      local c=step.coverage
+      if c then
+       local t1=done[c]
+       if not t1 then
+        t1={}
+        if duplicates then
+         for g1,d1 in next,c do
+          local ug1=indices[g1]
+          if ug1 then
+           t1[ug1]=d1
+           local dg1=duplicates[ug1]
+           if dg1 then
+            for u in next,dg1 do
+             t1[u]=copy(d1)
+            end
+           end
+          else
+           report_error("case %i, bad index in unifying %s: %s of %s",1,kind,g1,nofindices)
+          end
+         end
+        else
+         for g1,d1 in next,c do
+          local ug1=indices[g1]
+          if ug1 then
+           t1[ug1]=d1
+          else
+           report_error("case %i, bad index in unifying %s: %s of %s",2,kind,g1,nofindices)
+          end
+         end
+        end
+        done[c]=t1
+       end
+       step.coverage=t1
+      end
+     end
+     local rules=step.rules
+     if rules then
+      for i=1,#rules do
+       local rule=rules[i]
+       local before=rule.before   if before  then recover(before)  end
+       local after=rule.after if after   then recover(after)   end
+       local current=rule.current  if current then recover(current) end
+       local replacements=rule.replacements
+       if replacements then
+        if not done[replacements] then
+         local r={}
+         for k,v in next,replacements do
+          r[indices[k]]=indices[v]
+         end
+         rule.replacements=r
+         done[replacements]=r
+        end
+       end
+      end
+     end
+    end
+   end
+    end
+ end
+ unifythem(resources.sequences)
+ unifythem(resources.sublookups)
+end
+local function copyduplicates(fontdata)
+ if check_duplicates then
+  local descriptions=fontdata.descriptions
+  local resources=fontdata.resources
+  local duplicates=resources.duplicates
+  if check_soft_hyphen then
+   local ds=descriptions[0xAD]
+   if not ds or ds.width==0 then
+    if ds then
+     descriptions[0xAD]=nil
+     if trace_unicodes then
+      report_unicodes("patching soft hyphen")
+     end
+    else
+     if trace_unicodes then
+      report_unicodes("adding soft hyphen")
+     end
+    end
+    if not duplicates then
+     duplicates={}
+     resources.duplicates=duplicates
+    end
+    local dh=duplicates[0x2D]
+    if dh then
+     dh[#dh+1]={ [0xAD]=true }
+    else
+     duplicates[0x2D]={ [0xAD]=true }
+    end
+   end
+  end
+  if duplicates then
+     for u,d in next,duplicates do
+    local du=descriptions[u]
+    if du then
+     local t={ f_character_y(u),"@",f_index(du.index),"->" }
+     local n=0
+     local m=25
+     for u in next,d do
+      if descriptions[u] then
+       if n<m then
+        t[n+4]=f_character_n(u)
+       end
+      else
+       local c=copy(du)
+       c.unicode=u 
+       descriptions[u]=c
+       if n<m then
+        t[n+4]=f_character_y(u)
+       end
+      end
+      n=n+1
+     end
+     if trace_unicodes then
+      if n<=m then
+       report_unicodes("%i : % t",n,t)
+      else
+       report_unicodes("%i : % t ...",n,t)
+      end
+     end
+    else
+    end
+   end
+  end
+ end
+end
+local ignore={ 
+ ["notdef"]=true,
+ [".notdef"]=true,
+ ["null"]=true,
+ [".null"]=true,
+ ["nonmarkingreturn"]=true,
+}
+local function checklookups(fontdata,missing,nofmissing)
+ local descriptions=fontdata.descriptions
+ local resources=fontdata.resources
+ if missing and nofmissing and nofmissing<=0 then
+  return
+ end
+ local singles={}
+ local alternates={}
+ local ligatures={}
+ if not missing then
+  missing={}
+  nofmissing=0
+  for u,d in next,descriptions do
+   if not d.unicode then
+    nofmissing=nofmissing+1
+    missing[u]=true
+   end
+  end
+ end
+ local function collectthem(sequences)
+  if not sequences then
+   return
+  end
+  for i=1,#sequences do
+   local sequence=sequences[i]
+   local kind=sequence.type
+   local steps=sequence.steps
+   if steps then
+    for i=1,#steps do
+     local step=steps[i]
+     if kind=="gsub_single" then
+      local c=step.coverage
+      if c then
+       singles[#singles+1]=c
+      end
+     elseif kind=="gsub_alternate" then
+      local c=step.coverage
+      if c then
+       alternates[#alternates+1]=c
+      end
+     elseif kind=="gsub_ligature" then
+      local c=step.coverage
+      if c then
+       ligatures[#ligatures+1]=c
+      end
+     end
+    end
+   end
+  end
+ end
+ collectthem(resources.sequences)
+ collectthem(resources.sublookups)
+ local loops=0
+ while true do
+  loops=loops+1
+  local old=nofmissing
+  for i=1,#singles do
+   local c=singles[i]
+   for g1,g2 in next,c do
+    if missing[g1] then
+     local u2=descriptions[g2].unicode
+     if u2 then
+      missing[g1]=false
+      descriptions[g1].unicode=u2
+      nofmissing=nofmissing-1
+     end
+    end
+    if missing[g2] then
+     local u1=descriptions[g1].unicode
+     if u1 then
+      missing[g2]=false
+      descriptions[g2].unicode=u1
+      nofmissing=nofmissing-1
+     end
+    end
+   end
+  end
+  for i=1,#alternates do
+   local c=alternates[i]
+   for g1,d1 in next,c do
+    if missing[g1] then
+     for i=1,#d1 do
+      local g2=d1[i]
+      local u2=descriptions[g2].unicode
+      if u2 then
+       missing[g1]=false
+       descriptions[g1].unicode=u2
+       nofmissing=nofmissing-1
+      end
+     end
+    end
+    if not missing[g1] then
+     for i=1,#d1 do
+      local g2=d1[i]
+      if missing[g2] then
+       local u1=descriptions[g1].unicode
+       if u1 then
+        missing[g2]=false
+        descriptions[g2].unicode=u1
+        nofmissing=nofmissing-1
+       end
+      end
+     end
+    end
+   end
+  end
+  if nofmissing<=0 then
+   if trace_unicodes then
+    report_unicodes("all missings done in %s loops",loops)
+   end
+   return
+  elseif old==nofmissing then
+   break
+  end
+ end
+ local t,n 
+ local function recursed(c)
+  for g,d in next,c do
+   if g~="ligature" then
+    local u=descriptions[g].unicode
+    if u then
+     n=n+1
+     t[n]=u
+     recursed(d)
+     n=n-1
+    end
+   elseif missing[d] then
+    local l={}
+    local m=0
+    for i=1,n do
+     local u=t[i]
+     if type(u)=="table" then
+      for i=1,#u do
+       m=m+1
+       l[m]=u[i]
+      end
+     else
+      m=m+1
+      l[m]=u
+     end
+    end
+    missing[d]=false
+    descriptions[d].unicode=l
+    nofmissing=nofmissing-1
+   end
+  end
+ end
+ if nofmissing>0 then
+  t={}
+  n=0
+  local loops=0
+  while true do
+   loops=loops+1
+   local old=nofmissing
+   for i=1,#ligatures do
+    recursed(ligatures[i])
+   end
+   if nofmissing<=0 then
+    if trace_unicodes then
+     report_unicodes("all missings done in %s loops",loops)
+    end
+    return
+   elseif old==nofmissing then
+    break
+   end
+  end
+  t=nil
+  n=0
+ end
+ if trace_unicodes and nofmissing>0 then
+  local done={}
+  for i,r in next,missing do
+   if r then
+    local data=descriptions[i]
+    local name=data and data.name or f_index(i)
+    if not ignore[name] then
+     done[name]=true
+    end
+   end
+  end
+  if next(done) then
+   report_unicodes("not unicoded: % t",sortedkeys(done))
+  end
+ end
+end
+local function unifymissing(fontdata)
+ if not fonts.mappings then
+  require("font-map")
+  require("font-agl")
+ end
+ local unicodes={}
+ local resources=fontdata.resources
+ resources.unicodes=unicodes
+ for unicode,d in next,fontdata.descriptions do
+  if unicode<privateoffset then
+   local name=d.name
+   if name then
+    unicodes[name]=unicode
+   end
+  end
+ end
+ fonts.mappings.addtounicode(fontdata,fontdata.filename,checklookups)
+ resources.unicodes=nil
+end
+local firstprivate=fonts.privateoffsets and fonts.privateoffsets.textbase or 0xF0000
+local puafirst=0xE000
+local pualast=0xF8FF
+local function unifyglyphs(fontdata,usenames)
+ local private=fontdata.private or privateoffset
+ local glyphs=fontdata.glyphs
+ local indices={}
+ local descriptions={}
+ local names=usenames and {}
+ local resources=fontdata.resources
+ local zero=glyphs[0]
+ local zerocode=zero.unicode
+ if not zerocode then
+  zerocode=private
+  zero.unicode=zerocode
+  private=private+1
+ end
+ descriptions[zerocode]=zero
+ if names then
+  local name=glyphs[0].name or f_private(zerocode)
+  indices[0]=name
+  names[name]=zerocode
+ else
+  indices[0]=zerocode
+ end
+ if names then
+  for index=1,#glyphs do
+   local glyph=glyphs[index]
+   local unicode=glyph.unicode 
+   if not unicode then
+    unicode=private
+    local name=glyph.name or f_private(unicode)
+    indices[index]=name
+    names[name]=unicode
+    private=private+1
+   elseif unicode>=firstprivate then
+    unicode=private
+    local name=glyph.name or f_private(unicode)
+    indices[index]=name
+    names[name]=unicode
+    private=private+1
+   elseif unicode>=puafirst and unicode<=pualast then
+    local name=glyph.name or f_private(unicode)
+    indices[index]=name
+    names[name]=unicode
+   elseif descriptions[unicode] then
+    unicode=private
+    local name=glyph.name or f_private(unicode)
+    indices[index]=name
+    names[name]=unicode
+    private=private+1
+   else
+    local name=glyph.name or f_unicode(unicode)
+    indices[index]=name
+    names[name]=unicode
+   end
+   descriptions[unicode]=glyph
+  end
+ elseif trace_unicodes then
+  for index=1,#glyphs do
+   local glyph=glyphs[index]
+   local unicode=glyph.unicode 
+   if not unicode then
+    unicode=private
+    indices[index]=unicode
+    private=private+1
+   elseif unicode>=firstprivate then
+    local name=glyph.name
+    if name then
+     report_unicodes("moving glyph %a indexed %05X from private %U to %U ",name,index,unicode,private)
+    else
+     report_unicodes("moving glyph indexed %05X from private %U to %U ",index,unicode,private)
+    end
+    unicode=private
+    indices[index]=unicode
+    private=private+1
+   elseif unicode>=puafirst and unicode<=pualast then
+    local name=glyph.name
+    if name then
+     report_unicodes("keeping private unicode %U for glyph %a indexed %05X",unicode,name,index)
+    else
+     report_unicodes("keeping private unicode %U for glyph indexed %05X",unicode,index)
+    end
+    indices[index]=unicode
+   elseif descriptions[unicode] then
+    local name=glyph.name
+    if name then
+     report_unicodes("assigning duplicate unicode %U to %U for glyph %a indexed %05X ",unicode,private,name,index)
+    else
+     report_unicodes("assigning duplicate unicode %U to %U for glyph indexed %05X ",unicode,private,index)
+    end
+    unicode=private
+    indices[index]=unicode
+    private=private+1
+   else
+    indices[index]=unicode
+   end
+   descriptions[unicode]=glyph
+  end
+ else
+  for index=1,#glyphs do
+   local glyph=glyphs[index]
+   local unicode=glyph.unicode 
+   if not unicode then
+    unicode=private
+    indices[index]=unicode
+    private=private+1
+   elseif unicode>=firstprivate then
+    local name=glyph.name
+    unicode=private
+    indices[index]=unicode
+    private=private+1
+   elseif unicode>=puafirst and unicode<=pualast then
+    local name=glyph.name
+    indices[index]=unicode
+   elseif descriptions[unicode] then
+    local name=glyph.name
+    unicode=private
+    indices[index]=unicode
+    private=private+1
+   else
+    indices[index]=unicode
+   end
+   descriptions[unicode]=glyph
+  end
+ end
+ for index=1,#glyphs do
+  local math=glyphs[index].math
+  if math then
+   local list=math.vparts
+   if list then
+    for i=1,#list do local l=list[i] l.glyph=indices[l.glyph] end
+   end
+   local list=math.hparts
+   if list then
+    for i=1,#list do local l=list[i] l.glyph=indices[l.glyph] end
+   end
+   local list=math.vvariants
+   if list then
+    for i=1,#list do list[i]=indices[list[i]] end
+   end
+   local list=math.hvariants
+   if list then
+    for i=1,#list do list[i]=indices[list[i]] end
+   end
+  end
+ end
+ local colorpalettes=resources.colorpalettes
+ if colorpalettes then
+  for index=1,#glyphs do
+   local colors=glyphs[index].colors
+   if colors then
+    for i=1,#colors do
+     local c=colors[i]
+     c.slot=indices[c.slot]
+    end
+   end
+  end
+ end
+ fontdata.private=private
+ fontdata.glyphs=nil
+ fontdata.names=names
+ fontdata.descriptions=descriptions
+ fontdata.hashmethod=hashmethod
+ return indices,names
+end
+local p_crappyname  do
+ local p_hex=R("af","AF","09")
+ local p_digit=R("09")
+ local p_done=S("._-")^0+P(-1)
+ local p_alpha=R("az","AZ")
+ local p_ALPHA=R("AZ")
+ p_crappyname=(
+  lpeg.utfchartabletopattern({ "uni","u" },true)*S("Xx_")^0*p_hex^1
++lpeg.utfchartabletopattern({ "identity","glyph","jamo" },true)*p_hex^1
++lpeg.utfchartabletopattern({ "index","afii" },true)*p_digit^1
++p_digit*p_hex^3+p_alpha*p_digit^1
++P("aj")*p_digit^1+P("eh_")*(p_digit^1+p_ALPHA*p_digit^1)+(1-P("_"))^1*P("_uni")*p_hex^1+P("_")*P(1)^1
+ )*p_done
+end
+local forcekeep=false 
+directives.register("otf.keepnames",function(v)
+ report_cleanup("keeping weird glyph names, expect larger files and more memory usage")
+ forcekeep=v
+end)
+local function stripredundant(fontdata)
+ local descriptions=fontdata.descriptions
+ if descriptions then
+  local n=0
+  local c=0
+  if (not context and fonts.privateoffsets.keepnames) or forcekeep then
+   for unicode,d in next,descriptions do
+    if d.class=="base" then
+     d.class=nil
+     c=c+1
+    end
+   end
+  else
+   for unicode,d in next,descriptions do
+    local name=d.name
+    if name and lpegmatch(p_crappyname,name) then
+     d.name=nil
+     n=n+1
+    end
+    if d.class=="base" then
+     d.class=nil
+     c=c+1
+    end
+   end
+  end
+  if trace_cleanup then
+   if n>0 then
+    report_cleanup("%s bogus names removed (verbose unicode)",n)
+   end
+   if c>0 then
+    report_cleanup("%s base class tags removed (default is base)",c)
+   end
+  end
+ end
+end
+readers.stripredundant=stripredundant
+function readers.getcomponents(fontdata) 
+ local resources=fontdata.resources
+ if resources then
+  local sequences=resources.sequences
+  if sequences then
+   local collected={}
+   for i=1,#sequences do
+    local sequence=sequences[i]
+    if sequence.type=="gsub_ligature" then
+     local steps=sequence.steps
+     if steps then
+      local l={}
+      local function traverse(p,k,v)
+       if k=="ligature" then
+        collected[v]={ unpack(l) }
+       else
+        insert(l,k)
+        for k,vv in next,v do
+         traverse(p,k,vv)
+        end
+        remove(l)
+       end
+      end
+      for i=1,#steps do
+       local c=steps[i].coverage
+       if c then
+        for k,v in next,c do
+         traverse(k,k,v)
+        end
+       end
+      end
+     end
+    end
+   end
+   if next(collected) then
+    while true do
+     local done=false
+     for k,v in next,collected do
+      for i=1,#v do
+       local vi=v[i]
+       if vi==k then
+        collected[k]=nil
+        break
+       else
+        local c=collected[vi]
+        if c then
+         done=true
+         local t={}
+         local n=i-1
+         for j=1,n do
+          t[j]=v[j]
+         end
+         for j=1,#c do
+          n=n+1
+          t[n]=c[j]
+         end
+         for j=i+1,#v do
+          n=n+1
+          t[n]=v[j]
+         end
+         collected[k]=t
+         break
+        end
+       end
+      end
+     end
+     if not done then
+      break
+     end
+    end
+    return collected
+   end
+  end
+ end
+end
+readers.unifymissing=unifymissing
+function readers.rehash(fontdata,hashmethod) 
+ if not (fontdata and fontdata.glyphs) then
+  return
+ end
+ if hashmethod=="indices" then
+  fontdata.hashmethod="indices"
+ elseif hashmethod=="names" then
+  fontdata.hashmethod="names"
+  local indices=unifyglyphs(fontdata,true)
+  unifyresources(fontdata,indices)
+  copyduplicates(fontdata)
+  unifymissing(fontdata)
+ else
+  fontdata.hashmethod="unicodes"
+  local indices=unifyglyphs(fontdata)
+  unifyresources(fontdata,indices)
+  copyduplicates(fontdata)
+  unifymissing(fontdata)
+  stripredundant(fontdata)
+ end
+end
+function readers.checkhash(fontdata)
+ local hashmethod=fontdata.hashmethod
+ if hashmethod=="unicodes" then
+  fontdata.names=nil 
+ elseif hashmethod=="names" and fontdata.names then
+  unifyresources(fontdata,fontdata.names)
+  copyduplicates(fontdata)
+  fontdata.hashmethod="unicodes"
+  fontdata.names=nil 
+ else
+  readers.rehash(fontdata,"unicodes")
+ end
+end
+function readers.addunicodetable(fontdata)
+ local resources=fontdata.resources
+ local unicodes=resources.unicodes
+ if not unicodes then
+  local descriptions=fontdata.descriptions
+  if descriptions then
+   unicodes={}
+   resources.unicodes=unicodes
+   for u,d in next,descriptions do
+    local n=d.name
+    if n then
+     unicodes[n]=u
+    end
+   end
+  end
+ end
+end
+local concat,sort=table.concat,table.sort
+local next,type,tostring=next,type,tostring
+local criterium=1
+local threshold=0
+local trace_packing=false  trackers.register("otf.packing",function(v) trace_packing=v end)
+local trace_loading=false  trackers.register("otf.loading",function(v) trace_loading=v end)
+local report_otf=logs.reporter("fonts","otf loading")
+local function tabstr_normal(t)
+ local s={}
+ local n=0
+ for k,v in next,t do
+  n=n+1
+  if type(v)=="table" then
+   s[n]=k..">"..tabstr_normal(v)
+  elseif v==true then
+   s[n]=k.."+" 
+  elseif v then
+   s[n]=k.."="..v
+  else
+   s[n]=k.."-" 
+  end
+ end
+ if n==0 then
+  return ""
+ elseif n==1 then
+  return s[1]
+ else
+  sort(s) 
+  return concat(s,",")
+ end
+end
+local function tabstr_flat(t)
+ local s={}
+ local n=0
+ for k,v in next,t do
+  n=n+1
+  s[n]=k.."="..v
+ end
+ if n==0 then
+  return ""
+ elseif n==1 then
+  return s[1]
+ else
+  sort(s) 
+  return concat(s,",")
+ end
+end
+local function tabstr_mixed(t) 
+ local s={}
+ local n=#t
+ if n==0 then
+  return ""
+ elseif n==1 then
+  local k=t[1]
+  if k==true then
+   return "++" 
+  elseif k==false then
+   return "--" 
+  else
+   return tostring(k) 
+  end
+ else
+  for i=1,n do
+   local k=t[i]
+   if k==true then
+    s[i]="++" 
+   elseif k==false then
+    s[i]="--" 
+   else
+    s[i]=k 
+   end
+  end
+  return concat(s,",")
+ end
+end
+local function tabstr_boolean(t)
+ local s={}
+ local n=0
+ for k,v in next,t do
+  n=n+1
+  if v then
+   s[n]=k.."+"
+  else
+   s[n]=k.."-"
+  end
+ end
+ if n==0 then
+  return ""
+ elseif n==1 then
+  return s[1]
+ else
+  sort(s) 
+  return concat(s,",")
+ end
+end
+function readers.pack(data)
+ if data then
+  local h,t,c={},{},{}
+  local hh,tt,cc={},{},{}
+  local nt,ntt=0,0
+  local function pack_normal(v)
+   local tag=tabstr_normal(v)
+   local ht=h[tag]
+   if ht then
+    c[ht]=c[ht]+1
+    return ht
+   else
+    nt=nt+1
+    t[nt]=v
+    h[tag]=nt
+    c[nt]=1
+    return nt
+   end
+  end
+  local function pack_normal_cc(v)
+   local tag=tabstr_normal(v)
+   local ht=h[tag]
+   if ht then
+    c[ht]=c[ht]+1
+    return ht
+   else
+    v[1]=0
+    nt=nt+1
+    t[nt]=v
+    h[tag]=nt
+    c[nt]=1
+    return nt
+   end
+  end
+  local function pack_flat(v)
+   local tag=tabstr_flat(v)
+   local ht=h[tag]
+   if ht then
+    c[ht]=c[ht]+1
+    return ht
+   else
+    nt=nt+1
+    t[nt]=v
+    h[tag]=nt
+    c[nt]=1
+    return nt
+   end
+  end
+  local function pack_indexed(v)
+   local tag=concat(v," ")
+   local ht=h[tag]
+   if ht then
+    c[ht]=c[ht]+1
+    return ht
+   else
+    nt=nt+1
+    t[nt]=v
+    h[tag]=nt
+    c[nt]=1
+    return nt
+   end
+  end
+  local function pack_mixed(v)
+   local tag=tabstr_mixed(v)
+   local ht=h[tag]
+   if ht then
+    c[ht]=c[ht]+1
+    return ht
+   else
+    nt=nt+1
+    t[nt]=v
+    h[tag]=nt
+    c[nt]=1
+    return nt
+   end
+  end
+  local function pack_boolean(v)
+   local tag=tabstr_boolean(v)
+   local ht=h[tag]
+   if ht then
+    c[ht]=c[ht]+1
+    return ht
+   else
+    nt=nt+1
+    t[nt]=v
+    h[tag]=nt
+    c[nt]=1
+    return nt
+   end
+  end
+  local function pack_final(v)
+   if c[v]<=criterium then
+    return t[v]
+   else
+    local hv=hh[v]
+    if hv then
+     return hv
+    else
+     ntt=ntt+1
+     tt[ntt]=t[v]
+     hh[v]=ntt
+     cc[ntt]=c[v]
+     return ntt
+    end
+   end
+  end
+  local function pack_final_cc(v)
+   if c[v]<=criterium then
+    return t[v]
+   else
+    local hv=hh[v]
+    if hv then
+     return hv
+    else
+     ntt=ntt+1
+     tt[ntt]=t[v]
+     hh[v]=ntt
+     cc[ntt]=c[v]
+     return ntt
+    end
+   end
+  end
+  local function success(stage,pass)
+   if nt==0 then
+    if trace_loading or trace_packing then
+     report_otf("pack quality: nothing to pack")
+    end
+    return false
+   elseif nt>=threshold then
+    local one=0
+    local two=0
+    local rest=0
+    if pass==1 then
+     for k,v in next,c do
+      if v==1 then
+       one=one+1
+      elseif v==2 then
+       two=two+1
+      else
+       rest=rest+1
+      end
+     end
+    else
+     for k,v in next,cc do
+      if v>20 then
+       rest=rest+1
+      elseif v>10 then
+       two=two+1
+      else
+       one=one+1
+      end
+     end
+     data.tables=tt
+    end
+    if trace_loading or trace_packing then
+     report_otf("pack quality: stage %s, pass %s, %s packed, 1-10:%s, 11-20:%s, rest:%s (criterium: %s)",
+      stage,pass,one+two+rest,one,two,rest,criterium)
+    end
+    return true
+   else
+    if trace_loading or trace_packing then
+     report_otf("pack quality: stage %s, pass %s, %s packed, aborting pack (threshold: %s)",
+      stage,pass,nt,threshold)
+    end
+    return false
+   end
+  end
+  local function packers(pass)
+   if pass==1 then
+    return pack_normal,pack_indexed,pack_flat,pack_boolean,pack_mixed,pack_normal_cc
+   else
+    return pack_final,pack_final,pack_final,pack_final,pack_final,pack_final_cc
+   end
+  end
+  local resources=data.resources
+  local sequences=resources.sequences
+  local sublookups=resources.sublookups
+  local features=resources.features
+  local palettes=resources.colorpalettes
+  local variable=resources.variabledata
+  local chardata=characters and characters.data
+  local descriptions=data.descriptions or data.glyphs
+  if not descriptions then
+   return
+  end
+  for pass=1,2 do
+   if trace_packing then
+    report_otf("start packing: stage 1, pass %s",pass)
+   end
+   local pack_normal,pack_indexed,pack_flat,pack_boolean,pack_mixed,pack_normal_cc=packers(pass)
+   for unicode,description in next,descriptions do
+    local boundingbox=description.boundingbox
+    if boundingbox then
+     description.boundingbox=pack_indexed(boundingbox)
+    end
+    local math=description.math
+    if math then
+     local kerns=math.kerns
+     if kerns then
+      for tag,kern in next,kerns do
+       kerns[tag]=pack_normal(kern)
+      end
+     end
+    end
+   end
+   local function packthem(sequences)
+    for i=1,#sequences do
+     local sequence=sequences[i]
+     local kind=sequence.type
+     local steps=sequence.steps
+     local order=sequence.order
+     local features=sequence.features
+     local flags=sequence.flags
+     if steps then
+      for i=1,#steps do
+       local step=steps[i]
+       if kind=="gpos_pair" then
+        local c=step.coverage
+        if c then
+         if step.format~="pair" then
+          for g1,d1 in next,c do
+           c[g1]=pack_normal(d1)
+          end
+         elseif step.shared then
+          local shared={}
+          for g1,d1 in next,c do
+           for g2,d2 in next,d1 do
+            if not shared[d2] then
+             local f=d2[1] if f and f~=true then d2[1]=pack_indexed(f) end
+             local s=d2[2] if s and s~=true then d2[2]=pack_indexed(s) end
+             shared[d2]=true
+            end
+           end
+          end
+          if pass==2 then
+           step.shared=nil 
+          end
+         else
+          for g1,d1 in next,c do
+           for g2,d2 in next,d1 do
+            local f=d2[1] if f and f~=true then d2[1]=pack_indexed(f) end
+            local s=d2[2] if s and s~=true then d2[2]=pack_indexed(s) end
+           end
+          end
+         end
+        end
+       elseif kind=="gpos_single" then
+        local c=step.coverage
+        if c then
+         if step.format=="single" then
+          for g1,d1 in next,c do
+           if d1 and d1~=true then
+            c[g1]=pack_indexed(d1)
+           end
+          end
+         else
+          step.coverage=pack_normal(c)
+         end
+        end
+       elseif kind=="gpos_cursive" then
+        local c=step.coverage
+        if c then
+         for g1,d1 in next,c do
+          local f=d1[2] if f then d1[2]=pack_indexed(f) end
+          local s=d1[3] if s then d1[3]=pack_indexed(s) end
+         end
+        end
+       elseif kind=="gpos_mark2base" or kind=="gpos_mark2mark" then
+        local c=step.baseclasses
+        if c then
+         for g1,d1 in next,c do
+          for g2,d2 in next,d1 do
+           d1[g2]=pack_indexed(d2)
+          end
+         end
+        end
+        local c=step.coverage
+        if c then
+         for g1,d1 in next,c do
+          d1[2]=pack_indexed(d1[2])
+         end
+        end
+       elseif kind=="gpos_mark2ligature" then
+        local c=step.baseclasses
+        if c then
+         for g1,d1 in next,c do
+          for g2,d2 in next,d1 do
+           for g3,d3 in next,d2 do
+            d2[g3]=pack_indexed(d3)
+           end
+          end
+         end
+        end
+        local c=step.coverage
+        if c then
+         for g1,d1 in next,c do
+          d1[2]=pack_indexed(d1[2])
+         end
+        end
+       end
+       local rules=step.rules
+       if rules then
+        for i=1,#rules do
+         local rule=rules[i]
+         local r=rule.before    if r then for i=1,#r do r[i]=pack_boolean(r[i]) end end
+         local r=rule.after  if r then for i=1,#r do r[i]=pack_boolean(r[i]) end end
+         local r=rule.current   if r then for i=1,#r do r[i]=pack_boolean(r[i]) end end
+         local r=rule.replacements if r then rule.replacements=pack_flat   (r) end
+        end
+       end
+      end
+     end
+     if order then
+      sequence.order=pack_indexed(order)
+     end
+     if features then
+      for script,feature in next,features do
+       features[script]=pack_normal(feature)
+      end
+     end
+     if flags then
+      sequence.flags=pack_normal(flags)
+     end
+      end
+   end
+   if sequences then
+    packthem(sequences)
+   end
+   if sublookups then
+    packthem(sublookups)
+   end
+   if features then
+    for k,list in next,features do
+     for feature,spec in next,list do
+      list[feature]=pack_normal(spec)
+     end
+    end
+   end
+   if palettes then
+    for i=1,#palettes do
+     local p=palettes[i]
+     for j=1,#p do
+      p[j]=pack_indexed(p[j])
+     end
+    end
+   end
+   if variable then
+    local instances=variable.instances
+    if instances then
+     for i=1,#instances do
+      local v=instances[i].values
+      for j=1,#v do
+       v[j]=pack_normal(v[j])
+      end
+     end
+    end
+    local function packdeltas(main)
+     if main then
+      local deltas=main.deltas
+      if deltas then
+       for i=1,#deltas do
+        local di=deltas[i]
+        local d=di.deltas
+        for j=1,#d do
+         d[j]=pack_indexed(d[j])
+        end
+        di.regions=pack_indexed(di.regions)
+       end
+      end
+      local regions=main.regions
+      if regions then
+       for i=1,#regions do
+        local r=regions[i]
+        for j=1,#r do
+         r[j]=pack_normal(r[j])
+        end
+       end
+      end
+     end
+    end
+    packdeltas(variable.global)
+    packdeltas(variable.horizontal)
+    packdeltas(variable.vertical)
+    packdeltas(variable.metrics)
+   end
+   if not success(1,pass) then
+    return
+   end
+  end
+  if nt>0 then
+   for pass=1,2 do
+    if trace_packing then
+     report_otf("start packing: stage 2, pass %s",pass)
+    end
+    local pack_normal,pack_indexed,pack_flat,pack_boolean,pack_mixed,pack_normal_cc=packers(pass)
+    for unicode,description in next,descriptions do
+     local math=description.math
+     if math then
+      local kerns=math.kerns
+      if kerns then
+       math.kerns=pack_normal(kerns)
+      end
+     end
+    end
+    local function packthem(sequences)
+     for i=1,#sequences do
+      local sequence=sequences[i]
+      local kind=sequence.type
+      local steps=sequence.steps
+      local features=sequence.features
+      if steps then
+       for i=1,#steps do
+        local step=steps[i]
+        if kind=="gpos_pair" then
+         local c=step.coverage
+         if c then
+          if step.format=="pair" then
+           for g1,d1 in next,c do
+            for g2,d2 in next,d1 do
+             d1[g2]=pack_normal(d2)
+            end
+           end
+          end
+         end
+        elseif kind=="gpos_mark2ligature" then
+         local c=step.baseclasses 
+         if c then
+          for g1,d1 in next,c do
+           for g2,d2 in next,d1 do
+            d1[g2]=pack_normal(d2)
+           end
+          end
+         end
+        end
+        local rules=step.rules
+        if rules then
+         for i=1,#rules do
+          local rule=rules[i]
+          local r=rule.before  if r then rule.before=pack_normal(r) end
+          local r=rule.after   if r then rule.after=pack_normal(r) end
+          local r=rule.current if r then rule.current=pack_normal(r) end
+         end
+        end
+       end
+      end
+      if features then
+       sequence.features=pack_normal(features)
+      end
+       end
+    end
+    if sequences then
+     packthem(sequences)
+    end
+    if sublookups then
+     packthem(sublookups)
+    end
+    if variable then
+     local function unpackdeltas(main)
+      if main then
+       local regions=main.regions
+       if regions then
+        main.regions=pack_normal(regions)
+       end
+      end
+     end
+     unpackdeltas(variable.global)
+     unpackdeltas(variable.horizontal)
+     unpackdeltas(variable.vertical)
+     unpackdeltas(variable.metrics)
+    end
+   end
+   for pass=1,2 do
+    if trace_packing then
+     report_otf("start packing: stage 3, pass %s",pass)
+    end
+    local pack_normal,pack_indexed,pack_flat,pack_boolean,pack_mixed,pack_normal_cc=packers(pass)
+    local function packthem(sequences)
+     for i=1,#sequences do
+      local sequence=sequences[i]
+      local kind=sequence.type
+      local steps=sequence.steps
+      local features=sequence.features
+      if steps then
+       for i=1,#steps do
+        local step=steps[i]
+        if kind=="gpos_pair" then
+         local c=step.coverage
+         if c then
+          if step.format=="pair" then
+           for g1,d1 in next,c do
+            c[g1]=pack_normal(d1)
+           end
+          end
+         end
+        elseif kind=="gpos_cursive" then
+         local c=step.coverage
+         if c then
+          for g1,d1 in next,c do
+           c[g1]=pack_normal_cc(d1)
+          end
+         end
+        end
+       end
+      end
+     end
+    end
+    if sequences then
+     packthem(sequences)
+    end
+    if sublookups then
+     packthem(sublookups)
+    end
+   end
+  end
+ end
+end
+local unpacked_mt={
+ __index=function(t,k)
+   t[k]=false
+   return k 
+  end
+}
+function readers.unpack(data)
+ if data then
+  local tables=data.tables
+  if tables then
+   local resources=data.resources
+   local descriptions=data.descriptions or data.glyphs
+   local sequences=resources.sequences
+   local sublookups=resources.sublookups
+   local features=resources.features
+   local palettes=resources.colorpalettes
+   local variable=resources.variabledata
+   local unpacked={}
+   setmetatable(unpacked,unpacked_mt)
+   for unicode,description in next,descriptions do
+    local tv=tables[description.boundingbox]
+    if tv then
+     description.boundingbox=tv
+    end
+    local math=description.math
+    if math then
+     local kerns=math.kerns
+     if kerns then
+      local tm=tables[kerns]
+      if tm then
+       math.kerns=tm
+       kerns=unpacked[tm]
+      end
+      if kerns then
+       for k,kern in next,kerns do
+        local tv=tables[kern]
+        if tv then
+         kerns[k]=tv
+        end
+       end
+      end
+     end
+    end
+   end
+   local function unpackthem(sequences)
+    for i=1,#sequences do
+     local sequence=sequences[i]
+     local kind=sequence.type
+     local steps=sequence.steps
+     local order=sequence.order
+     local features=sequence.features
+     local flags=sequence.flags
+     local markclass=sequence.markclass
+     if features then
+      local tv=tables[features]
+      if tv then
+       sequence.features=tv
+       features=tv
+      end
+      for script,feature in next,features do
+       local tv=tables[feature]
+       if tv then
+        features[script]=tv
+       end
+      end
+     end
+     if steps then
+      for i=1,#steps do
+       local step=steps[i]
+       if kind=="gpos_pair" then
+        local c=step.coverage
+        if c then
+         if step.format=="pair" then
+          for g1,d1 in next,c do
+           local tv=tables[d1]
+           if tv then
+            c[g1]=tv
+            d1=tv
+           end
+           for g2,d2 in next,d1 do
+            local tv=tables[d2]
+            if tv then
+             d1[g2]=tv
+             d2=tv
+            end
+            local f=tables[d2[1]] if f then d2[1]=f end
+            local s=tables[d2[2]] if s then d2[2]=s end
+           end
+          end
+         else
+          for g1,d1 in next,c do
+           local tv=tables[d1]
+           if tv then
+            c[g1]=tv
+           end
+          end
+         end
+        end
+       elseif kind=="gpos_single" then
+        local c=step.coverage
+        if c then
+         if step.format=="single" then
+          for g1,d1 in next,c do
+           local tv=tables[d1]
+           if tv then
+            c[g1]=tv
+           end
+          end
+         else
+          local tv=tables[c]
+          if tv then
+           step.coverage=tv
+          end
+         end
+        end
+       elseif kind=="gpos_cursive" then
+        local c=step.coverage
+        if c then
+         for g1,d1 in next,c do
+          local tv=tables[d1]
+          if tv then
+           d1=tv
+           c[g1]=d1
+          end
+          local f=tables[d1[2]] if f then d1[2]=f end
+          local s=tables[d1[3]] if s then d1[3]=s end
+         end
+        end
+       elseif kind=="gpos_mark2base" or kind=="gpos_mark2mark" then
+        local c=step.baseclasses
+        if c then
+         for g1,d1 in next,c do
+          for g2,d2 in next,d1 do
+           local tv=tables[d2]
+           if tv then
+            d1[g2]=tv
+           end
+          end
+         end
+        end
+        local c=step.coverage
+        if c then
+         for g1,d1 in next,c do
+          local tv=tables[d1[2]]
+          if tv then
+           d1[2]=tv
+          end
+         end
+        end
+       elseif kind=="gpos_mark2ligature" then
+        local c=step.baseclasses
+        if c then
+         for g1,d1 in next,c do
+          for g2,d2 in next,d1 do
+           local tv=tables[d2] 
+           if tv then
+            d2=tv
+            d1[g2]=d2
+           end
+           for g3,d3 in next,d2 do
+            local tv=tables[d2[g3]]
+            if tv then
+             d2[g3]=tv
+            end
+           end
+          end
+         end
+        end
+        local c=step.coverage
+        if c then
+         for g1,d1 in next,c do
+          local tv=tables[d1[2]]
+          if tv then
+           d1[2]=tv
+          end
+         end
+        end
+       end
+       local rules=step.rules
+       if rules then
+        for i=1,#rules do
+         local rule=rules[i]
+         local before=rule.before
+         if before then
+          local tv=tables[before]
+          if tv then
+           rule.before=tv
+           before=tv
+          end
+          for i=1,#before do
+           local tv=tables[before[i]]
+           if tv then
+            before[i]=tv
+           end
+          end
+         end
+         local after=rule.after
+         if after then
+          local tv=tables[after]
+          if tv then
+           rule.after=tv
+           after=tv
+          end
+          for i=1,#after do
+           local tv=tables[after[i]]
+           if tv then
+            after[i]=tv
+           end
+          end
+         end
+         local current=rule.current
+         if current then
+          local tv=tables[current]
+          if tv then
+           rule.current=tv
+           current=tv
+          end
+          for i=1,#current do
+           local tv=tables[current[i]]
+           if tv then
+            current[i]=tv
+           end
+          end
+         end
+         local replacements=rule.replacements
+         if replacements then
+          local tv=tables[replacements]
+          if tv then
+           rule.replacements=tv
+          end
+         end
+        end
+       end
+      end
+     end
+     if order then
+      local tv=tables[order]
+      if tv then
+       sequence.order=tv
+      end
+     end
+     if flags then
+      local tv=tables[flags]
+      if tv then
+       sequence.flags=tv
+      end
+     end
+      end
+   end
+   if sequences then
+    unpackthem(sequences)
+   end
+   if sublookups then
+    unpackthem(sublookups)
+   end
+   if features then
+    for k,list in next,features do
+     for feature,spec in next,list do
+      local tv=tables[spec]
+      if tv then
+       list[feature]=tv
+      end
+     end
+    end
+   end
+   if palettes then
+    for i=1,#palettes do
+     local p=palettes[i]
+     for j=1,#p do
+      local tv=tables[p[j]]
+      if tv then
+       p[j]=tv
+      end
+     end
+    end
+   end
+   if variable then
+    local instances=variable.instances
+    if instances then
+     for i=1,#instances do
+      local v=instances[i].values
+      for j=1,#v do
+       local tv=tables[v[j]]
+       if tv then
+        v[j]=tv
+       end
+      end
+     end
+    end
+    local function unpackdeltas(main)
+     if main then
+      local deltas=main.deltas
+      if deltas then
+       for i=1,#deltas do
+        local di=deltas[i]
+        local d=di.deltas
+        local r=di.regions
+        for j=1,#d do
+         local tv=tables[d[j]]
+         if tv then
+          d[j]=tv
+         end
+        end
+        local tv=di.regions
+        if tv then
+         di.regions=tv
+        end
+       end
+      end
+      local regions=main.regions
+      if regions then
+       local tv=tables[regions]
+       if tv then
+        main.regions=tv
+        regions=tv
+       end
+       for i=1,#regions do
+        local r=regions[i]
+        for j=1,#r do
+         local tv=tables[r[j]]
+         if tv then
+          r[j]=tv
+         end
+        end
+       end
+      end
+     end
+    end
+    unpackdeltas(variable.global)
+    unpackdeltas(variable.horizontal)
+    unpackdeltas(variable.vertical)
+    unpackdeltas(variable.metrics)
+   end
+   data.tables=nil
+  end
+ end
+end
+local mt={
+ __index=function(t,k) 
+  if k=="height" then
+   local ht=t.boundingbox[4]
+   return ht<0 and 0 or ht
+  elseif k=="depth" then
+   local dp=-t.boundingbox[2]
+   return dp<0 and 0 or dp
+  elseif k=="width" then
+   return 0
+  elseif k=="name" then 
+   return forcenotdef and ".notdef"
+  end
+ end
+}
+local function sameformat(sequence,steps,first,nofsteps,kind)
+ return true
+end
+local function mergesteps_1(lookup,strict)
+ local steps=lookup.steps
+ local nofsteps=lookup.nofsteps
+ local first=steps[1]
+ if strict then
+  local f=first.format
+  for i=2,nofsteps do
+   if steps[i].format~=f then
+    if trace_optimizations then
+     report_optimizations("not merging %a steps of %a lookup %a, different formats",nofsteps,lookup.type,lookup.name)
+    end
+    return 0
+   end
+  end
+ end
+ if trace_optimizations then
+  report_optimizations("merging %a steps of %a lookup %a",nofsteps,lookup.type,lookup.name)
+ end
+ local target=first.coverage
+ for i=2,nofsteps do
+  local c=steps[i].coverage
+  if c then
+   for k,v in next,c do
+    if not target[k] then
+     target[k]=v
+    end
+   end
+  end
+ end
+ lookup.nofsteps=1
+ lookup.merged=true
+ lookup.steps={ first }
+ return nofsteps-1
+end
+local function mergesteps_2(lookup)
+ local steps=lookup.steps
+ local nofsteps=lookup.nofsteps
+ local first=steps[1]
+ if strict then
+  local f=first.format
+  for i=2,nofsteps do
+   if steps[i].format~=f then
+    if trace_optimizations then
+     report_optimizations("not merging %a steps of %a lookup %a, different formats",nofsteps,lookup.type,lookup.name)
+    end
+    return 0
+   end
+  end
+ end
+ if trace_optimizations then
+  report_optimizations("merging %a steps of %a lookup %a",nofsteps,lookup.type,lookup.name)
+ end
+ local target=first.coverage
+ for i=2,nofsteps do
+  local c=steps[i].coverage
+  if c then
+   for k,v in next,c do
+    local tk=target[k]
+    if tk then
+     for kk,vv in next,v do
+      if tk[kk]==nil then
+       tk[kk]=vv
+      end
+     end
+    else
+     target[k]=v
+    end
+   end
+  end
+ end
+ lookup.nofsteps=1
+ lookup.merged=true
+ lookup.steps={ first }
+ return nofsteps-1
+end
+local function mergesteps_3(lookup,strict) 
+ local steps=lookup.steps
+ local nofsteps=lookup.nofsteps
+ if trace_optimizations then
+  report_optimizations("merging %a steps of %a lookup %a",nofsteps,lookup.type,lookup.name)
+ end
+ local coverage={}
+ for i=1,nofsteps do
+  local c=steps[i].coverage
+  if c then
+   for k,v in next,c do
+    local tk=coverage[k] 
+    if tk then
+     if trace_optimizations then
+      report_optimizations("quitting merge due to multiple checks")
+     end
+     return nofsteps
+    else
+     coverage[k]=v
+    end
+   end
+  end
+ end
+ local first=steps[1]
+ local baseclasses={} 
+ for i=1,nofsteps do
+  local offset=i*10  
+  local step=steps[i]
+  for k,v in sortedhash(step.baseclasses) do
+   baseclasses[offset+k]=v
+  end
+  for k,v in next,step.coverage do
+   v[1]=offset+v[1]
+  end
+ end
+ first.baseclasses=baseclasses
+ first.coverage=coverage
+ lookup.nofsteps=1
+ lookup.merged=true
+ lookup.steps={ first }
+ return nofsteps-1
+end
+local function nested(old,new)
+ for k,v in next,old do
+  if k=="ligature" then
+   if not new.ligature then
+    new.ligature=v
+   end
+  else
+   local n=new[k]
+   if n then
+    nested(v,n)
+   else
+    new[k]=v
+   end
+  end
+ end
+end
+local function mergesteps_4(lookup) 
+ local steps=lookup.steps
+ local nofsteps=lookup.nofsteps
+ local first=steps[1]
+ if trace_optimizations then
+  report_optimizations("merging %a steps of %a lookup %a",nofsteps,lookup.type,lookup.name)
+ end
+ local target=first.coverage
+ for i=2,nofsteps do
+  local c=steps[i].coverage
+  if c then
+   for k,v in next,c do
+    local tk=target[k]
+    if tk then
+     nested(v,tk)
+    else
+     target[k]=v
+    end
+   end
+  end
+ end
+ lookup.nofsteps=1
+ lookup.steps={ first }
+ return nofsteps-1
+end
+local function mergesteps_5(lookup) 
+ local steps=lookup.steps
+ local nofsteps=lookup.nofsteps
+ local first=steps[1]
+ if trace_optimizations then
+  report_optimizations("merging %a steps of %a lookup %a",nofsteps,lookup.type,lookup.name)
+ end
+ local target=first.coverage
+ local hash=nil
+ for k,v in next,target do
+  hash=v[1]
+  break
+ end
+ for i=2,nofsteps do
+  local c=steps[i].coverage
+  if c then
+   for k,v in next,c do
+    local tk=target[k]
+    if tk then
+     if not tk[2] then
+      tk[2]=v[2]
+     end
+     if not tk[3] then
+      tk[3]=v[3]
+     end
+    else
+     target[k]=v
+     v[1]=hash
+    end
+   end
+  end
+ end
+ lookup.nofsteps=1
+ lookup.merged=true
+ lookup.steps={ first }
+ return nofsteps-1
+end
+local function checkkerns(lookup)
+ local steps=lookup.steps
+ local nofsteps=lookup.nofsteps
+ local kerned=0
+ for i=1,nofsteps do
+  local step=steps[i]
+  if step.format=="pair" then
+   local coverage=step.coverage
+   local kerns=true
+   for g1,d1 in next,coverage do
+    if d1==true then
+    elseif not d1 then
+    elseif d1[1]~=0 or d1[2]~=0 or d1[4]~=0 then
+     kerns=false
+     break
+    end
+   end
+   if kerns then
+    if trace_optimizations then
+     report_optimizations("turning pairs of step %a of %a lookup %a into kerns",i,lookup.type,lookup.name)
+    end
+    local c={}
+    for g1,d1 in next,coverage do
+     if d1 and d1~=true then
+      c[g1]=d1[3]
+     end
+    end
+    step.coverage=c
+    step.format="move"
+    kerned=kerned+1
+   end
+  end
+ end
+ return kerned
+end
+local function checkpairs(lookup)
+ local steps=lookup.steps
+ local nofsteps=lookup.nofsteps
+ local kerned=0
+ local function onlykerns(step)
+  local coverage=step.coverage
+  for g1,d1 in next,coverage do
+   for g2,d2 in next,d1 do
+    if d2[2] then
+     return false
+    else
+     local v=d2[1]
+     if v==true then
+     elseif v and (v[1]~=0 or v[2]~=0 or v[4]~=0) then
+      return false
+     end
+    end
+   end
+  end
+  return coverage
+ end
+ for i=1,nofsteps do
+  local step=steps[i]
+  if step.format=="pair" then
+   local coverage=onlykerns(step)
+   if coverage then
+    if trace_optimizations then
+     report_optimizations("turning pairs of step %a of %a lookup %a into kerns",i,lookup.type,lookup.name)
+    end
+    for g1,d1 in next,coverage do
+     local d={}
+     for g2,d2 in next,d1 do
+      local v=d2[1]
+      if v==true then
+      elseif v then
+       d[g2]=v[3] 
+      end
+     end
+     coverage[g1]=d
+    end
+    step.format="move"
+    kerned=kerned+1
+   end
+  end
+ end
+ return kerned
+end
+local compact_pairs=true
+local compact_singles=true
+local merge_pairs=true
+local merge_singles=true
+local merge_substitutions=true
+local merge_alternates=true
+local merge_multiples=true
+local merge_ligatures=true
+local merge_cursives=true
+local merge_marks=true
+directives.register("otf.compact.pairs",function(v) compact_pairs=v end)
+directives.register("otf.compact.singles",function(v) compact_singles=v end)
+directives.register("otf.merge.pairs",function(v) merge_pairs=v end)
+directives.register("otf.merge.singles",function(v) merge_singles=v end)
+directives.register("otf.merge.substitutions",function(v) merge_substitutions=v end)
+directives.register("otf.merge.alternates",function(v) merge_alternates=v end)
+directives.register("otf.merge.multiples",function(v) merge_multiples=v end)
+directives.register("otf.merge.ligatures",function(v) merge_ligatures=v end)
+directives.register("otf.merge.cursives",function(v) merge_cursives=v end)
+directives.register("otf.merge.marks",function(v) merge_marks=v end)
+function readers.compact(data)
+ if not data or data.compacted then
+  return
+ else
+  data.compacted=true
+ end
+ local resources=data.resources
+ local merged=0
+ local kerned=0
+ local allsteps=0
+ local function compact(what)
+  local lookups=resources[what]
+  if lookups then
+   for i=1,#lookups do
+    local lookup=lookups[i]
+    local nofsteps=lookup.nofsteps
+    local kind=lookup.type
+    allsteps=allsteps+nofsteps
+    if nofsteps>1 then
+     local merg=merged
+     if kind=="gsub_single" then
+      if merge_substitutions then
+       merged=merged+mergesteps_1(lookup)
+      end
+     elseif kind=="gsub_alternate" then
+      if merge_alternates then
+       merged=merged+mergesteps_1(lookup)
+      end
+     elseif kind=="gsub_multiple" then
+      if merge_multiples then
+       merged=merged+mergesteps_1(lookup)
+      end
+     elseif kind=="gsub_ligature" then
+      if merge_ligatures then
+       merged=merged+mergesteps_4(lookup)
+      end
+     elseif kind=="gpos_single" then
+      if merge_singles then
+       merged=merged+mergesteps_1(lookup,true)
+      end
+      if compact_singles then
+       kerned=kerned+checkkerns(lookup)
+      end
+     elseif kind=="gpos_pair" then
+      if merge_pairs then
+       merged=merged+mergesteps_2(lookup)
+      end
+      if compact_pairs then
+       kerned=kerned+checkpairs(lookup)
+      end
+     elseif kind=="gpos_cursive" then
+      if merge_cursives then
+       merged=merged+mergesteps_5(lookup)
+      end
+     elseif kind=="gpos_mark2mark" or kind=="gpos_mark2base" or kind=="gpos_mark2ligature" then
+      if merge_marks then
+       merged=merged+mergesteps_3(lookup)
+      end
+     end
+     if merg~=merged then
+      lookup.merged=true
+     end
+    elseif nofsteps==1 then
+     local kern=kerned
+     if kind=="gpos_single" then
+      if compact_singles then
+       kerned=kerned+checkkerns(lookup)
+      end
+     elseif kind=="gpos_pair" then
+      if compact_pairs then
+       kerned=kerned+checkpairs(lookup)
+      end
+     end
+     if kern~=kerned then
+     end
+    end
+   end
+  elseif trace_optimizations then
+   report_optimizations("no lookups in %a",what)
+  end
+ end
+ compact("sequences")
+ compact("sublookups")
+ if trace_optimizations then
+  if merged>0 then
+   report_optimizations("%i steps of %i removed due to merging",merged,allsteps)
+  end
+  if kerned>0 then
+   report_optimizations("%i steps of %i steps turned from pairs into kerns",kerned,allsteps)
+  end
+ end
+end
+local function mergesteps(t,k)
+ if k=="merged" then
+  local merged={}
+  for i=1,#t do
+   local step=t[i]
+   local coverage=step.coverage
+   for k in next,coverage do
+    local m=merged[k]
+    if m then
+     m[2]=i
+    else
+     merged[k]={ i,i }
+    end
+   end
+  end
+  t.merged=merged
+  return merged
+ end
+end
+local function checkmerge(sequence)
+ local steps=sequence.steps
+ if steps then
+  setmetatableindex(steps,mergesteps)
+ end
+end
+local function checkflags(sequence,resources)
+ if not sequence.skiphash then
+  local flags=sequence.flags
+  if flags then
+   local skipmark=flags[1]
+   local skipligature=flags[2]
+   local skipbase=flags[3]
+   local markclass=sequence.markclass
+   local skipsome=skipmark or skipligature or skipbase or markclass or false
+   if skipsome then
+    sequence.skiphash=setmetatableindex(function(t,k)
+     local c=resources.classes[k] 
+     local v=c==skipmark
+         or (markclass and c=="mark" and not markclass[k])
+         or c==skipligature
+         or c==skipbase
+         or false
+     t[k]=v
+     return v
+    end)
+   else
+    sequence.skiphash=false
+   end
+  else
+   sequence.skiphash=false
+  end
+ end
+end
+local function checksteps(sequence)
+ local steps=sequence.steps
+ if steps then
+  for i=1,#steps do
+   steps[i].index=i
+  end
+ end
+end
+if fonts.helpers then
+ fonts.helpers.checkmerge=checkmerge
+ fonts.helpers.checkflags=checkflags
+ fonts.helpers.checksteps=checksteps 
+end
+function readers.expand(data)
+ if not data or data.expanded then
+  return
+ else
+  data.expanded=true
+ end
+ local resources=data.resources
+ local sublookups=resources.sublookups
+ local sequences=resources.sequences 
+ local markclasses=resources.markclasses
+ local descriptions=data.descriptions
+ if descriptions then
+  local defaultwidth=resources.defaultwidth  or 0
+  local defaultheight=resources.defaultheight or 0
+  local defaultdepth=resources.defaultdepth  or 0
+  local basename=trace_markwidth and file.basename(resources.filename)
+  for u,d in next,descriptions do
+   local bb=d.boundingbox
+   local wd=d.width
+   if not wd then
+    d.width=defaultwidth
+   elseif trace_markwidth and wd~=0 and d.class=="mark" then
+    report_markwidth("mark %a with width %b found in %a",d.name or "<noname>",wd,basename)
+   end
+   if bb then
+    local ht=bb[4]
+    local dp=-bb[2]
+    if ht==0 or ht<0 then
+    else
+     d.height=ht
+    end
+    if dp==0 or dp<0 then
+    else
+     d.depth=dp
+    end
+   end
+  end
+ end
+ local function expandlookups(sequences)
+  if sequences then
+   for i=1,#sequences do
+    local sequence=sequences[i]
+    local steps=sequence.steps
+    if steps then
+     local nofsteps=sequence.nofsteps
+     local kind=sequence.type
+     local markclass=sequence.markclass
+     if markclass then
+      if not markclasses then
+       report_warning("missing markclasses")
+       sequence.markclass=false
+      else
+       sequence.markclass=markclasses[markclass]
+      end
+     end
+     for i=1,nofsteps do
+      local step=steps[i]
+      local baseclasses=step.baseclasses
+      if baseclasses then
+       local coverage=step.coverage
+       for k,v in next,coverage do
+        v[1]=baseclasses[v[1]] 
+       end
+      elseif kind=="gpos_cursive" then
+       local coverage=step.coverage
+       for k,v in next,coverage do
+        v[1]=coverage 
+       end
+      end
+      local rules=step.rules
+      if rules then
+       local rulehash={ n=0 } 
+       local rulesize=0
+       local coverage={}
+       local lookuptype=sequence.type
+       local nofrules=#rules
+       step.coverage=coverage 
+       for currentrule=1,nofrules do
+        local rule=rules[currentrule]
+        local current=rule.current
+        local before=rule.before
+        local after=rule.after
+        local replacements=rule.replacements or false
+        local sequence={}
+        local nofsequences=0
+        if before then
+         for n=1,#before do
+          nofsequences=nofsequences+1
+          sequence[nofsequences]=before[n]
+         end
+        end
+        local start=nofsequences+1
+        for n=1,#current do
+         nofsequences=nofsequences+1
+         sequence[nofsequences]=current[n]
+        end
+        local stop=nofsequences
+        if after then
+         for n=1,#after do
+          nofsequences=nofsequences+1
+          sequence[nofsequences]=after[n]
+         end
+        end
+        local lookups=rule.lookups or false
+        local subtype=nil
+        if lookups then
+         for i=1,#lookups do
+          local lookups=lookups[i]
+          if lookups then
+           for k,v in next,lookups do 
+            local lookup=sublookups[v]
+            if lookup then
+             lookups[k]=lookup
+             if not subtype then
+              subtype=lookup.type
+             end
+            else
+            end
+           end
+          end
+         end
+        end
+        if sequence[1] then 
+         sequence.n=#sequence 
+         local ruledata={
+          currentrule,
+          lookuptype,
+          sequence,
+          start,
+          stop,
+          lookups,
+          replacements,
+          subtype,
+         }
+         rulesize=rulesize+1
+         rulehash[rulesize]=ruledata
+         rulehash.n=rulesize
+         if true then 
+          for unic in next,sequence[start] do
+           local cu=coverage[unic]
+           if cu then
+            local n=#cu+1
+            cu[n]=ruledata
+            cu.n=n
+           else
+            coverage[unic]={ ruledata,n=1 }
+           end
+          end
+         else
+          for unic in next,sequence[start] do
+           local cu=coverage[unic]
+           if cu then
+           else
+            coverage[unic]=rulehash
+           end
+          end
+         end
+        end
+       end
+      end
+     end
+     checkmerge(sequence)
+     checkflags(sequence,resources)
+     checksteps(sequence)
+    end
+   end
+  end
+ end
+ expandlookups(sequences)
+ expandlookups(sublookups)
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-otl']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files",
+}
+local lower=string.lower
+local type,next,tonumber,tostring,unpack=type,next,tonumber,tostring,unpack
+local abs=math.abs
+local derivetable=table.derive
+local formatters=string.formatters
+local setmetatableindex=table.setmetatableindex
+local allocate=utilities.storage.allocate
+local registertracker=trackers.register
+local registerdirective=directives.register
+local starttiming=statistics.starttiming
+local stoptiming=statistics.stoptiming
+local elapsedtime=statistics.elapsedtime
+local findbinfile=resolvers.findbinfile
+local trace_loading=false  registertracker("otf.loading",function(v) trace_loading=v end)
+local trace_features=false  registertracker("otf.features",function(v) trace_features=v end)
+local trace_defining=false  registertracker("fonts.defining",function(v) trace_defining=v end)
+local report_otf=logs.reporter("fonts","otf loading")
+local fonts=fonts
+local otf=fonts.handlers.otf
+otf.version=3.109 
+otf.cache=containers.define("fonts","otl",otf.version,true)
+otf.svgcache=containers.define("fonts","svg",otf.version,true)
+otf.pngcache=containers.define("fonts","png",otf.version,true)
+otf.pdfcache=containers.define("fonts","pdf",otf.version,true)
+otf.svgenabled=false
+otf.pngenabled=false
+local otfreaders=otf.readers
+local hashes=fonts.hashes
+local definers=fonts.definers
+local readers=fonts.readers
+local constructors=fonts.constructors
+local otffeatures=constructors.features.otf
+local registerotffeature=otffeatures.register
+local otfenhancers=constructors.enhancers.otf
+local registerotfenhancer=otfenhancers.register
+local forceload=false
+local cleanup=0  
+local syncspace=true
+local forcenotdef=false
+local privateoffset=fonts.constructors and fonts.constructors.privateoffset or 0xF0000 
+local applyruntimefixes=fonts.treatments and fonts.treatments.applyfixes
+local wildcard="*"
+local default="dflt"
+local formats=fonts.formats
+formats.otf="opentype"
+formats.ttf="truetype"
+formats.ttc="truetype"
+registerdirective("fonts.otf.loader.cleanup",function(v) cleanup=tonumber(v) or (v and 1) or 0 end)
+registerdirective("fonts.otf.loader.force",function(v) forceload=v end)
+registerdirective("fonts.otf.loader.syncspace",function(v) syncspace=v end)
+registerdirective("fonts.otf.loader.forcenotdef",function(v) forcenotdef=v end)
+registerotfenhancer("check extra features",function() end)
+local checkmemory=utilities.lua and utilities.lua.checkmemory
+local threshold=100 
+local tracememory=false
+registertracker("fonts.otf.loader.memory",function(v) tracememory=v end)
+if not checkmemory then 
+ local collectgarbage=collectgarbage
+ checkmemory=function(previous,threshold) 
+  local current=collectgarbage("count")
+  if previous then
+   local checked=(threshold or 64)*1024
+   if current-previous>checked then
+    collectgarbage("collect")
+    current=collectgarbage("count")
+   end
+  end
+  return current
+ end
+end
+function otf.load(filename,sub,instance)
+ local base=file.basename(file.removesuffix(filename))
+ local name=file.removesuffix(base) 
+ local attr=lfs.attributes(filename)
+ local size=attr and attr.size or 0
+ local time=attr and attr.modification or 0
+ if sub=="" then
+  sub=false
+ end
+ local hash=name
+ if sub then
+  hash=hash.."-"..sub
+ end
+ if instance then
+  hash=hash.."-"..instance
+ end
+ hash=containers.cleanname(hash)
+ local data=containers.read(otf.cache,hash)
+ local reload=not data or data.size~=size or data.time~=time or data.tableversion~=otfreaders.tableversion
+ if forceload then
+  report_otf("forced reload of %a due to hard coded flag",filename)
+  reload=true
+ end
+ if reload then
+  report_otf("loading %a, hash %a",filename,hash)
+  starttiming(otfreaders,true)
+  data=otfreaders.loadfont(filename,sub or 1,instance) 
+  if data then
+   local used=checkmemory()
+   local resources=data.resources
+   local svgshapes=resources.svgshapes
+   local pngshapes=resources.pngshapes
+   if cleanup==0 then
+    checkmemory(used,threshold,tracememory)
+   end
+   if svgshapes then
+    resources.svgshapes=nil
+    if otf.svgenabled then
+     local timestamp=os.date()
+     containers.write(otf.svgcache,hash,{
+      svgshapes=svgshapes,
+      timestamp=timestamp,
+     })
+     data.properties.svg={
+      hash=hash,
+      timestamp=timestamp,
+     }
+    end
+    if cleanup>1 then
+     collectgarbage("collect")
+    else
+     checkmemory(used,threshold,tracememory)
+    end
+   end
+   if pngshapes then
+    resources.pngshapes=nil
+    if otf.pngenabled then
+     local timestamp=os.date()
+     containers.write(otf.pngcache,hash,{
+      pngshapes=pngshapes,
+      timestamp=timestamp,
+     })
+     data.properties.png={
+      hash=hash,
+      timestamp=timestamp,
+     }
+    end
+    if cleanup>1 then
+     collectgarbage("collect")
+    else
+     checkmemory(used,threshold,tracememory)
+    end
+   end
+   otfreaders.compact(data)
+   if cleanup==0 then
+    checkmemory(used,threshold,tracememory)
+   end
+   otfreaders.rehash(data,"unicodes")
+   otfreaders.addunicodetable(data)
+   otfreaders.extend(data)
+   if cleanup==0 then
+    checkmemory(used,threshold,tracememory)
+   end
+   otfreaders.pack(data)
+   report_otf("loading done")
+   report_otf("saving %a in cache",filename)
+   data=containers.write(otf.cache,hash,data)
+   if cleanup>1 then
+    collectgarbage("collect")
+   else
+    checkmemory(used,threshold,tracememory)
+   end
+   stoptiming(otfreaders)
+   if elapsedtime then
+    report_otf("loading, optimizing, packing and caching time %s",elapsedtime(otfreaders))
+   end
+   if cleanup>3 then
+    collectgarbage("collect")
+   else
+    checkmemory(used,threshold,tracememory)
+   end
+   data=containers.read(otf.cache,hash) 
+   if cleanup>2 then
+    collectgarbage("collect")
+   else
+    checkmemory(used,threshold,tracememory)
+   end
+  else
+   stoptiming(otfreaders)
+   data=nil
+   report_otf("loading failed due to read error")
+  end
+ end
+ if data then
+  if trace_defining then
+   report_otf("loading from cache using hash %a",hash)
+  end
+  otfreaders.unpack(data)
+  otfreaders.expand(data) 
+  otfreaders.addunicodetable(data)
+  otfenhancers.apply(data,filename,data)
+  if applyruntimefixes then
+   applyruntimefixes(filename,data) 
+  end
+  data.metadata.math=data.resources.mathconstants
+  local classes=data.resources.classes
+  if not classes then
+   local descriptions=data.descriptions
+   classes=setmetatableindex(function(t,k)
+    local d=descriptions[k]
+    local v=(d and d.class or "base") or false
+    t[k]=v
+    return v
+   end)
+   data.resources.classes=classes
+  end
+ end
+ return data
+end
+function otf.setfeatures(tfmdata,features)
+ local okay=constructors.initializefeatures("otf",tfmdata,features,trace_features,report_otf)
+ if okay then
+  return constructors.collectprocessors("otf",tfmdata,features,trace_features,report_otf)
+ else
+  return {} 
+ end
+end
+local function copytotfm(data,cache_id)
+ if data then
+  local metadata=data.metadata
+  local properties=derivetable(data.properties)
+  local descriptions=derivetable(data.descriptions)
+  local goodies=derivetable(data.goodies)
+  local characters={}
+  local parameters={}
+  local mathparameters={}
+  local resources=data.resources
+  local unicodes=resources.unicodes
+  local spaceunits=500
+  local spacer="space"
+  local designsize=metadata.designsize or 100
+  local minsize=metadata.minsize or designsize
+  local maxsize=metadata.maxsize or designsize
+  local mathspecs=metadata.math
+  if designsize==0 then
+   designsize=100
+   minsize=100
+   maxsize=100
+  end
+  if mathspecs then
+   for name,value in next,mathspecs do
+    mathparameters[name]=value
+   end
+  end
+  for unicode in next,data.descriptions do 
+   characters[unicode]={}
+  end
+  if mathspecs then
+   for unicode,character in next,characters do
+    local d=descriptions[unicode] 
+    local m=d.math
+    if m then
+     local italic=m.italic
+     local vitalic=m.vitalic
+     local variants=m.hvariants
+     local parts=m.hparts
+     if variants then
+      local c=character
+      for i=1,#variants do
+       local un=variants[i]
+       c.next=un
+       c=characters[un]
+      end 
+      c.horiz_variants=parts
+     elseif parts then
+      character.horiz_variants=parts
+      italic=m.hitalic
+     end
+     local variants=m.vvariants
+     local parts=m.vparts
+     if variants then
+      local c=character
+      for i=1,#variants do
+       local un=variants[i]
+       c.next=un
+       c=characters[un]
+      end 
+      c.vert_variants=parts
+     elseif parts then
+      character.vert_variants=parts
+     end
+     if italic and italic~=0 then
+      character.italic=italic
+     end
+     if vitalic and vitalic~=0 then
+      character.vert_italic=vitalic
+     end
+     local accent=m.accent 
+     if accent then
+      character.accent=accent
+     end
+     local kerns=m.kerns
+     if kerns then
+      character.mathkerns=kerns
+     end
+    end
+   end
+  end
+  local filename=constructors.checkedfilename(resources)
+  local fontname=metadata.fontname
+  local fullname=metadata.fullname or fontname
+  local psname=fontname or fullname
+  local subfont=metadata.subfontindex
+  local units=metadata.units or 1000
+  if units==0 then 
+   units=1000 
+   metadata.units=1000
+   report_otf("changing %a units to %a",0,units)
+  end
+  local monospaced=metadata.monospaced
+  local charwidth=metadata.averagewidth 
+  local charxheight=metadata.xheight 
+  local italicangle=metadata.italicangle
+  local hasitalics=metadata.hasitalics
+  properties.monospaced=monospaced
+  properties.hasitalics=hasitalics
+  parameters.italicangle=italicangle
+  parameters.charwidth=charwidth
+  parameters.charxheight=charxheight
+  local space=0x0020
+  local emdash=0x2014
+  if monospaced then
+   if descriptions[space] then
+    spaceunits,spacer=descriptions[space].width,"space"
+   end
+   if not spaceunits and descriptions[emdash] then
+    spaceunits,spacer=descriptions[emdash].width,"emdash"
+   end
+   if not spaceunits and charwidth then
+    spaceunits,spacer=charwidth,"charwidth"
+   end
+  else
+   if descriptions[space] then
+    spaceunits,spacer=descriptions[space].width,"space"
+   end
+   if not spaceunits and descriptions[emdash] then
+    spaceunits,spacer=descriptions[emdash].width/2,"emdash/2"
+   end
+   if not spaceunits and charwidth then
+    spaceunits,spacer=charwidth,"charwidth"
+   end
+  end
+  spaceunits=tonumber(spaceunits) or units/2
+  parameters.slant=0
+  parameters.space=spaceunits   
+  parameters.space_stretch=1*units/2   
+  parameters.space_shrink=1*units/3   
+  parameters.x_height=2*units/5   
+  parameters.quad=units    
+  if spaceunits<2*units/5 then
+  end
+  if italicangle and italicangle~=0 then
+   parameters.italicangle=italicangle
+   parameters.italicfactor=math.cos(math.rad(90+italicangle))
+   parameters.slant=- math.tan(italicangle*math.pi/180)
+  end
+  if monospaced then
+   parameters.space_stretch=0
+   parameters.space_shrink=0
+  elseif syncspace then 
+   parameters.space_stretch=spaceunits/2
+   parameters.space_shrink=spaceunits/3
+  end
+  parameters.extra_space=parameters.space_shrink 
+  if charxheight then
+   parameters.x_height=charxheight
+  else
+   local x=0x0078
+   if x then
+    local x=descriptions[x]
+    if x then
+     parameters.x_height=x.height
+    end
+   end
+  end
+  parameters.designsize=(designsize/10)*65536
+  parameters.minsize=(minsize/10)*65536
+  parameters.maxsize=(maxsize/10)*65536
+  parameters.ascender=abs(metadata.ascender  or 0)
+  parameters.descender=abs(metadata.descender or 0)
+  parameters.units=units
+  parameters.vheight=metadata.defaultvheight
+  properties.space=spacer
+  properties.encodingbytes=2
+  properties.format=data.format or formats.otf
+  properties.filename=filename
+  properties.fontname=fontname
+  properties.fullname=fullname
+  properties.psname=psname
+  properties.name=filename or fullname
+  properties.subfont=subfont
+  properties.private=properties.private or data.private or privateoffset
+  return {
+   characters=characters,
+   descriptions=descriptions,
+   parameters=parameters,
+   mathparameters=mathparameters,
+   resources=resources,
+   properties=properties,
+   goodies=goodies,
+  }
+ end
+end
+local converters={
+ woff={
+  cachename="webfonts",
+  action=otf.readers.woff2otf,
+ }
+}
+local function checkconversion(specification)
+ local filename=specification.filename
+ local converter=converters[lower(file.suffix(filename))]
+ if converter then
+  local base=file.basename(filename)
+  local name=file.removesuffix(base)
+  local attr=lfs.attributes(filename)
+  local size=attr and attr.size or 0
+  local time=attr and attr.modification or 0
+  if size>0 then
+   local cleanname=containers.cleanname(name)
+   local cachename=caches.setfirstwritablefile(cleanname,converter.cachename)
+   if not io.exists(cachename) or (time~=lfs.attributes(cachename).modification) then
+    report_otf("caching font %a in %a",filename,cachename)
+    converter.action(filename,cachename) 
+    lfs.touch(cachename,time,time)
+   end
+   specification.filename=cachename
+  end
+ end
+end
+local function otftotfm(specification)
+ local cache_id=specification.hash
+ local tfmdata=containers.read(constructors.cache,cache_id)
+ if not tfmdata then
+  checkconversion(specification) 
+  local name=specification.name
+  local sub=specification.sub
+  local subindex=specification.subindex
+  local filename=specification.filename
+  local features=specification.features.normal
+  local instance=specification.instance or (features and features.axis)
+  local rawdata=otf.load(filename,sub,instance)
+  if rawdata and next(rawdata) then
+   local descriptions=rawdata.descriptions
+   rawdata.lookuphash={} 
+   tfmdata=copytotfm(rawdata,cache_id)
+   if tfmdata and next(tfmdata) then
+    local features=constructors.checkedfeatures("otf",features)
+    local shared=tfmdata.shared
+    if not shared then
+     shared={}
+     tfmdata.shared=shared
+    end
+    shared.rawdata=rawdata
+    shared.dynamics={}
+    tfmdata.changed={}
+    shared.features=features
+    shared.processes=otf.setfeatures(tfmdata,features)
+   end
+  end
+  containers.write(constructors.cache,cache_id,tfmdata)
+ end
+ return tfmdata
+end
+local function read_from_otf(specification)
+ local tfmdata=otftotfm(specification)
+ if tfmdata then
+  tfmdata.properties.name=specification.name
+  tfmdata.properties.sub=specification.sub
+  tfmdata=constructors.scale(tfmdata,specification)
+  local allfeatures=tfmdata.shared.features or specification.features.normal
+  constructors.applymanipulators("otf",tfmdata,allfeatures,trace_features,report_otf)
+  constructors.setname(tfmdata,specification) 
+  fonts.loggers.register(tfmdata,file.suffix(specification.filename),specification)
+ end
+ return tfmdata
+end
+local function checkmathsize(tfmdata,mathsize)
+ local mathdata=tfmdata.shared.rawdata.metadata.math
+ local mathsize=tonumber(mathsize)
+ if mathdata then 
+  local parameters=tfmdata.parameters
+  parameters.scriptpercentage=mathdata.ScriptPercentScaleDown
+  parameters.scriptscriptpercentage=mathdata.ScriptScriptPercentScaleDown
+  parameters.mathsize=mathsize 
+ end
+end
+registerotffeature {
+ name="mathsize",
+ description="apply mathsize specified in the font",
+ initializers={
+  base=checkmathsize,
+  node=checkmathsize,
+ }
+}
+function otf.collectlookups(rawdata,kind,script,language)
+ if not kind then
+  return
+ end
+ if not script then
+  script=default
+ end
+ if not language then
+  language=default
+ end
+ local lookupcache=rawdata.lookupcache
+ if not lookupcache then
+  lookupcache={}
+  rawdata.lookupcache=lookupcache
+ end
+ local kindlookup=lookupcache[kind]
+ if not kindlookup then
+  kindlookup={}
+  lookupcache[kind]=kindlookup
+ end
+ local scriptlookup=kindlookup[script]
+ if not scriptlookup then
+  scriptlookup={}
+  kindlookup[script]=scriptlookup
+ end
+ local languagelookup=scriptlookup[language]
+ if not languagelookup then
+  local sequences=rawdata.resources.sequences
+  local featuremap={}
+  local featurelist={}
+  if sequences then
+   for s=1,#sequences do
+    local sequence=sequences[s]
+    local features=sequence.features
+    if features then
+     features=features[kind]
+     if features then
+      features=features[script] or features[wildcard]
+      if features then
+       features=features[language] or features[wildcard]
+       if features then
+        if not featuremap[sequence] then
+         featuremap[sequence]=true
+         featurelist[#featurelist+1]=sequence
+        end
+       end
+      end
+     end
+    end
+   end
+   if #featurelist==0 then
+    featuremap,featurelist=false,false
+   end
+  else
+   featuremap,featurelist=false,false
+  end
+  languagelookup={ featuremap,featurelist }
+  scriptlookup[language]=languagelookup
+ end
+ return unpack(languagelookup)
+end
+local function getgsub(tfmdata,k,kind,value)
+ local shared=tfmdata.shared
+ local rawdata=shared and shared.rawdata
+ if rawdata then
+  local sequences=rawdata.resources.sequences
+  if sequences then
+   local properties=tfmdata.properties
+   local validlookups,lookuplist=otf.collectlookups(rawdata,kind,properties.script,properties.language)
+   if validlookups then
+    for i=1,#lookuplist do
+     local lookup=lookuplist[i]
+     local steps=lookup.steps
+     local nofsteps=lookup.nofsteps
+     for i=1,nofsteps do
+      local coverage=steps[i].coverage
+      if coverage then
+       local found=coverage[k]
+       if found then
+        return found,lookup.type
+       end
+      end
+     end
+    end
+   end
+  end
+ end
+end
+otf.getgsub=getgsub 
+function otf.getsubstitution(tfmdata,k,kind,value)
+ local found,kind=getgsub(tfmdata,k,kind,value)
+ if not found then
+ elseif kind=="gsub_single" then
+  return found
+ elseif kind=="gsub_alternate" then
+  local choice=tonumber(value) or 1 
+  return found[choice] or found[1] or k
+ end
+ return k
+end
+otf.getalternate=otf.getsubstitution
+function otf.getmultiple(tfmdata,k,kind)
+ local found,kind=getgsub(tfmdata,k,kind)
+ if found and kind=="gsub_multiple" then
+  return found
+ end
+ return { k }
+end
+function otf.getkern(tfmdata,left,right,kind)
+ local kerns=getgsub(tfmdata,left,kind or "kern",true) 
+ if kerns then
+  local found=kerns[right]
+  local kind=type(found)
+  if kind=="table" then
+   found=found[1][3] 
+  elseif kind~="number" then
+   found=false
+  end
+  if found then
+   return found*tfmdata.parameters.factor
+  end
+ end
+ return 0
+end
+local function check_otf(forced,specification,suffix)
+ local name=specification.name
+ if forced then
+  name=specification.forcedname 
+ end
+ local fullname=findbinfile(name,suffix) or ""
+ if fullname=="" then
+  fullname=fonts.names.getfilename(name,suffix) or ""
+ end
+ if fullname~="" and not fonts.names.ignoredfile(fullname) then
+  specification.filename=fullname
+  return read_from_otf(specification)
+ end
+end
+local function opentypereader(specification,suffix)
+ local forced=specification.forced or ""
+ if formats[forced] then
+  return check_otf(true,specification,forced)
+ else
+  return check_otf(false,specification,suffix)
+ end
+end
+readers.opentype=opentypereader 
+function readers.otf(specification) return opentypereader(specification,"otf") end
+function readers.ttf(specification) return opentypereader(specification,"ttf") end
+function readers.ttc(specification) return opentypereader(specification,"ttf") end
+function readers.woff(specification)
+ checkconversion(specification)
+ opentypereader(specification,"")
+end
+function otf.scriptandlanguage(tfmdata,attr)
+ local properties=tfmdata.properties
+ return properties.script or "dflt",properties.language or "dflt"
+end
+local function justset(coverage,unicode,replacement)
+ coverage[unicode]=replacement
+end
+otf.coverup={
+ stepkey="steps",
+ actions={
+  chainsubstitution=justset,
+  chainposition=justset,
+  substitution=justset,
+  alternate=justset,
+  multiple=justset,
+  kern=justset,
+  pair=justset,
+  single=justset,
+  ligature=function(coverage,unicode,ligature)
+   local first=ligature[1]
+   local tree=coverage[first]
+   if not tree then
+    tree={}
+    coverage[first]=tree
+   end
+   for i=2,#ligature do
+    local l=ligature[i]
+    local t=tree[l]
+    if not t then
+     t={}
+     tree[l]=t
+    end
+    tree=t
+   end
+   tree.ligature=unicode
+  end,
+ },
+ register=function(coverage,featuretype,format)
+  return {
+   format=format,
+   coverage=coverage,
+  }
+ end
+}
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-oto']={ 
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local concat,unpack=table.concat,table.unpack
+local insert,remove=table.insert,table.remove
+local format,gmatch,gsub,find,match,lower,strip=string.format,string.gmatch,string.gsub,string.find,string.match,string.lower,string.strip
+local type,next,tonumber,tostring,rawget=type,next,tonumber,tostring,rawget
+local trace_baseinit=false  trackers.register("otf.baseinit",function(v) trace_baseinit=v end)
+local trace_singles=false  trackers.register("otf.singles",function(v) trace_singles=v end)
+local trace_multiples=false  trackers.register("otf.multiples",function(v) trace_multiples=v end)
+local trace_alternatives=false  trackers.register("otf.alternatives",function(v) trace_alternatives=v end)
+local trace_ligatures=false  trackers.register("otf.ligatures",function(v) trace_ligatures=v end)
+local trace_kerns=false  trackers.register("otf.kerns",function(v) trace_kerns=v end)
+local trace_preparing=false  trackers.register("otf.preparing",function(v) trace_preparing=v end)
+local report_prepare=logs.reporter("fonts","otf prepare")
+local fonts=fonts
+local otf=fonts.handlers.otf
+local otffeatures=otf.features
+local registerotffeature=otffeatures.register
+otf.defaultbasealternate="none" 
+local getprivate=fonts.constructors.getprivate
+local wildcard="*"
+local default="dflt"
+local formatters=string.formatters
+local f_unicode=formatters["%U"]
+local f_uniname=formatters["%U (%s)"]
+local f_unilist=formatters["% t (% t)"]
+local function gref(descriptions,n)
+ if type(n)=="number" then
+  local name=descriptions[n].name
+  if name then
+   return f_uniname(n,name)
+  else
+   return f_unicode(n)
+  end
+ elseif n then
+  local num={}
+  local nam={}
+  local j=0
+  for i=1,#n do
+   local ni=n[i]
+   if tonumber(ni) then 
+    j=j+1
+    local di=descriptions[ni]
+    num[j]=f_unicode(ni)
+    nam[j]=di and di.name or "-"
+   end
+  end
+  return f_unilist(num,nam)
+ else
+  return "<error in base mode tracing>"
+ end
+end
+local function cref(feature,sequence)
+ return formatters["feature %a, type %a, chain lookup %a"](feature,sequence.type,sequence.name)
+end
+local function report_substitution(feature,sequence,descriptions,unicode,substitution)
+ if unicode==substitution then
+  report_prepare("%s: base substitution %s maps onto itself",
+   cref(feature,sequence),
+   gref(descriptions,unicode))
+ else
+  report_prepare("%s: base substitution %s => %S",
+   cref(feature,sequence),
+   gref(descriptions,unicode),
+   gref(descriptions,substitution))
+ end
+end
+local function report_alternate(feature,sequence,descriptions,unicode,replacement,value,comment)
+ if unicode==replacement then
+  report_prepare("%s: base alternate %s maps onto itself",
+   cref(feature,sequence),
+   gref(descriptions,unicode))
+ else
+  report_prepare("%s: base alternate %s => %s (%S => %S)",
+   cref(feature,sequence),
+   gref(descriptions,unicode),
+   replacement and gref(descriptions,replacement),
+   value,
+   comment)
+ end
+end
+local function report_ligature(feature,sequence,descriptions,unicode,ligature)
+ report_prepare("%s: base ligature %s => %S",
+  cref(feature,sequence),
+  gref(descriptions,ligature),
+  gref(descriptions,unicode))
+end
+local function report_kern(feature,sequence,descriptions,unicode,otherunicode,value)
+ report_prepare("%s: base kern %s + %s => %S",
+  cref(feature,sequence),
+  gref(descriptions,unicode),
+  gref(descriptions,otherunicode),
+  value)
+end
+local basehash,basehashes,applied={},1,{}
+local function registerbasehash(tfmdata)
+ local properties=tfmdata.properties
+ local hash=concat(applied," ")
+ local base=basehash[hash]
+ if not base then
+  basehashes=basehashes+1
+  base=basehashes
+  basehash[hash]=base
+ end
+ properties.basehash=base
+ properties.fullname=(properties.fullname or properties.name).."-"..base
+ applied={}
+end
+local function registerbasefeature(feature,value)
+ applied[#applied+1]=feature.."="..tostring(value)
+end
+local function makefake(tfmdata,name,present)
+ local private=getprivate(tfmdata)
+ local character={ intermediate=true,ligatures={} }
+ resources.unicodes[name]=private
+ tfmdata.characters[private]=character
+ tfmdata.descriptions[private]={ name=name }
+ present[name]=private
+ return character
+end
+local function make_1(present,tree,name)
+ for k,v in next,tree do
+  if k=="ligature" then
+   present[name]=v
+  else
+   make_1(present,v,name.."_"..k)
+  end
+ end
+end
+local function make_2(present,tfmdata,characters,tree,name,preceding,unicode,done)
+ for k,v in next,tree do
+  if k=="ligature" then
+   local character=characters[preceding]
+   if not character then
+    if trace_baseinit then
+     report_prepare("weird ligature in lookup %a, current %C, preceding %C",sequence.name,v,preceding)
+    end
+    character=makefake(tfmdata,name,present)
+   end
+   local ligatures=character.ligatures
+   if ligatures then
+    ligatures[unicode]={ char=v }
+   else
+    character.ligatures={ [unicode]={ char=v } }
+   end
+   if done then
+    local d=done[name]
+    if not d then
+     done[name]={ "dummy",v }
+    else
+     d[#d+1]=v
+    end
+   end
+  else
+   local code=present[name] or unicode
+   local name=name.."_"..k
+   make_2(present,tfmdata,characters,v,name,code,k,done)
+  end
+ end
+end
+local function preparesubstitutions(tfmdata,feature,value,validlookups,lookuplist)
+ local characters=tfmdata.characters
+ local descriptions=tfmdata.descriptions
+ local resources=tfmdata.resources
+ local changed=tfmdata.changed
+ local ligatures={}
+ local alternate=tonumber(value) or true and 1
+ local defaultalt=otf.defaultbasealternate
+ local trace_singles=trace_baseinit and trace_singles
+ local trace_alternatives=trace_baseinit and trace_alternatives
+ local trace_ligatures=trace_baseinit and trace_ligatures
+ if not changed then
+  changed={}
+  tfmdata.changed=changed
+ end
+ for i=1,#lookuplist do
+  local sequence=lookuplist[i]
+  local steps=sequence.steps
+  local kind=sequence.type
+  if kind=="gsub_single" then
+   for i=1,#steps do
+    for unicode,data in next,steps[i].coverage do
+     if unicode~=data then
+      changed[unicode]=data
+     end
+     if trace_singles then
+      report_substitution(feature,sequence,descriptions,unicode,data)
+     end
+    end
+   end
+  elseif kind=="gsub_alternate" then
+   for i=1,#steps do
+    for unicode,data in next,steps[i].coverage do
+     local replacement=data[alternate]
+     if replacement then
+      if unicode~=replacement then
+       changed[unicode]=replacement
+      end
+      if trace_alternatives then
+       report_alternate(feature,sequence,descriptions,unicode,replacement,value,"normal")
+      end
+     elseif defaultalt=="first" then
+      replacement=data[1]
+      if unicode~=replacement then
+       changed[unicode]=replacement
+      end
+      if trace_alternatives then
+       report_alternate(feature,sequence,descriptions,unicode,replacement,value,defaultalt)
+      end
+     elseif defaultalt=="last" then
+      replacement=data[#data]
+      if unicode~=replacement then
+       changed[unicode]=replacement
+      end
+      if trace_alternatives then
+       report_alternate(feature,sequence,descriptions,unicode,replacement,value,defaultalt)
+      end
+     else
+      if trace_alternatives then
+       report_alternate(feature,sequence,descriptions,unicode,replacement,value,"unknown")
+      end
+     end
+    end
+   end
+  elseif kind=="gsub_ligature" then
+   for i=1,#steps do
+    for unicode,data in next,steps[i].coverage do
+     ligatures[#ligatures+1]={ unicode,data,"" } 
+     if trace_ligatures then
+      report_ligature(feature,sequence,descriptions,unicode,data)
+     end
+    end
+   end
+  end
+ end
+ local nofligatures=#ligatures
+ if nofligatures>0 then
+  local characters=tfmdata.characters
+  local present={}
+  local done=trace_baseinit and trace_ligatures and {}
+  for i=1,nofligatures do
+   local ligature=ligatures[i]
+   local unicode=ligature[1]
+   local tree=ligature[2]
+   make_1(present,tree,"ctx_"..unicode)
+  end
+  for i=1,nofligatures do
+   local ligature=ligatures[i]
+   local unicode=ligature[1]
+   local tree=ligature[2]
+   local lookupname=ligature[3]
+   make_2(present,tfmdata,characters,tree,"ctx_"..unicode,unicode,unicode,done,sequence)
+  end
+ end
+end
+local function preparepositionings(tfmdata,feature,value,validlookups,lookuplist)
+ local characters=tfmdata.characters
+ local descriptions=tfmdata.descriptions
+ local resources=tfmdata.resources
+ local properties=tfmdata.properties
+ local traceindeed=trace_baseinit and trace_kerns
+ for i=1,#lookuplist do
+  local sequence=lookuplist[i]
+  local steps=sequence.steps
+  local kind=sequence.type
+  local format=sequence.format
+  if kind=="gpos_pair" then
+   for i=1,#steps do
+    local step=steps[i]
+    local format=step.format
+    if format=="kern" or format=="move" then
+     for unicode,data in next,steps[i].coverage do
+      local character=characters[unicode]
+      local kerns=character.kerns
+      if not kerns then
+       kerns={}
+       character.kerns=kerns
+      end
+      if traceindeed then
+       for otherunicode,kern in next,data do
+        if not kerns[otherunicode] and kern~=0 then
+         kerns[otherunicode]=kern
+         report_kern(feature,sequence,descriptions,unicode,otherunicode,kern)
+        end
+       end
+      else
+       for otherunicode,kern in next,data do
+        if not kerns[otherunicode] and kern~=0 then
+         kerns[otherunicode]=kern
+        end
+       end
+      end
+     end
+    else
+     for unicode,data in next,steps[i].coverage do
+      local character=characters[unicode]
+      local kerns=character.kerns
+      for otherunicode,kern in next,data do
+       local other=kern[2]
+       if other==true or (not other and not (kerns and kerns[otherunicode])) then
+        local kern=kern[1]
+        if kern==true then
+        elseif kern[1]~=0 or kern[2]~=0 or kern[4]~=0 then
+        else
+         kern=kern[3]
+         if kern~=0 then
+          if kerns then
+           kerns[otherunicode]=kern
+          else
+           kerns={ [otherunicode]=kern }
+           character.kerns=kerns
+          end
+          if traceindeed then
+           report_kern(feature,sequence,descriptions,unicode,otherunicode,kern)
+          end
+         end
+        end
+       end
+      end
+     end
+    end
+   end
+  end
+ end
+end
+local function initializehashes(tfmdata)
+end
+local function checkmathreplacements(tfmdata,fullname,fixitalics)
+ if tfmdata.mathparameters then
+  local characters=tfmdata.characters
+  local changed=tfmdata.changed
+  if next(changed) then
+   if trace_preparing or trace_baseinit then
+    report_prepare("checking math replacements for %a",fullname)
+   end
+   for unicode,replacement in next,changed do
+    local u=characters[unicode]
+    local r=characters[replacement]
+    if u and r then
+     local n=u.next
+     local v=u.vert_variants
+     local h=u.horiz_variants
+     if fixitalics then
+      local ui=u.italic
+      if ui and not r.italic then
+       if trace_preparing then
+        report_prepare("using %i units of italic correction from %C for %U",ui,unicode,replacement)
+       end
+       r.italic=ui 
+      end
+     end
+     if n and not r.next then
+      if trace_preparing then
+       report_prepare("forcing %s for %C substituted by %U","incremental step",unicode,replacement)
+      end
+      r.next=n
+     end
+     if v and not r.vert_variants then
+      if trace_preparing then
+       report_prepare("forcing %s for %C substituted by %U","vertical variants",unicode,replacement)
+      end
+      r.vert_variants=v
+     end
+     if h and not r.horiz_variants then
+      if trace_preparing then
+       report_prepare("forcing %s for %C substituted by %U","horizontal variants",unicode,replacement)
+      end
+      r.horiz_variants=h
+     end
+    else
+     if trace_preparing then
+      report_prepare("error replacing %C by %U",unicode,replacement)
+     end
+    end
+   end
+  end
+ end
+end
+local function featuresinitializer(tfmdata,value)
+ if true then 
+  local starttime=trace_preparing and os.clock()
+  local features=tfmdata.shared.features
+  local fullname=tfmdata.properties.fullname or "?"
+  if features then
+   initializehashes(tfmdata)
+   local collectlookups=otf.collectlookups
+   local rawdata=tfmdata.shared.rawdata
+   local properties=tfmdata.properties
+   local script=properties.script
+   local language=properties.language
+   local rawresources=rawdata.resources
+   local rawfeatures=rawresources and rawresources.features
+   local basesubstitutions=rawfeatures and rawfeatures.gsub
+   local basepositionings=rawfeatures and rawfeatures.gpos
+   local substitutionsdone=false
+   local positioningsdone=false
+   if basesubstitutions or basepositionings then
+    local sequences=tfmdata.resources.sequences
+    for s=1,#sequences do
+     local sequence=sequences[s]
+     local sfeatures=sequence.features
+     if sfeatures then
+      local order=sequence.order
+      if order then
+       for i=1,#order do 
+        local feature=order[i]
+        local value=features[feature]
+        if value then
+         local validlookups,lookuplist=collectlookups(rawdata,feature,script,language)
+         if not validlookups then
+         elseif basesubstitutions and basesubstitutions[feature] then
+          if trace_preparing then
+           report_prepare("filtering base %s feature %a for %a with value %a","sub",feature,fullname,value)
+          end
+          preparesubstitutions(tfmdata,feature,value,validlookups,lookuplist)
+          registerbasefeature(feature,value)
+          substitutionsdone=true
+         elseif basepositionings and basepositionings[feature] then
+          if trace_preparing then
+           report_prepare("filtering base %a feature %a for %a with value %a","pos",feature,fullname,value)
+          end
+          preparepositionings(tfmdata,feature,value,validlookups,lookuplist)
+          registerbasefeature(feature,value)
+          positioningsdone=true
+         end
+        end
+       end
+      end
+     end
+    end
+   end
+   if substitutionsdone then
+    checkmathreplacements(tfmdata,fullname,features.fixitalics)
+   end
+   registerbasehash(tfmdata)
+  end
+  if trace_preparing then
+   report_prepare("preparation time is %0.3f seconds for %a",os.clock()-starttime,fullname)
+  end
+ end
+end
+registerotffeature {
+ name="features",
+ description="features",
+ default=true,
+ initializers={
+  base=featuresinitializer,
+ }
+}
+otf.basemodeinitializer=featuresinitializer
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-otj']={
+ version=1.001,
+ comment="companion to font-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files",
+}
+if not nodes.properties then return end
+local next,rawget,tonumber=next,rawget,tonumber
+local fastcopy=table.fastcopy
+local registertracker=trackers.register
+local registerdirective=directives.register
+local trace_injections=false  registertracker("fonts.injections",function(v) trace_injections=v end)
+local trace_marks=false  registertracker("fonts.injections.marks",function(v) trace_marks=v end)
+local trace_cursive=false  registertracker("fonts.injections.cursive",function(v) trace_cursive=v end)
+local trace_spaces=false  registertracker("fonts.injections.spaces",function(v) trace_spaces=v end)
+local report_injections=logs.reporter("fonts","injections")
+local report_spaces=logs.reporter("fonts","spaces")
+local attributes,nodes,node=attributes,nodes,node
+fonts=fonts
+local hashes=fonts.hashes
+local fontdata=hashes.identifiers
+local fontmarks=hashes.marks
+nodes.injections=nodes.injections or {}
+local injections=nodes.injections
+local tracers=nodes.tracers
+local setcolor=tracers and tracers.colors.set
+local resetcolor=tracers and tracers.colors.reset
+local nodecodes=nodes.nodecodes
+local glyph_code=nodecodes.glyph
+local disc_code=nodecodes.disc
+local kern_code=nodecodes.kern
+local glue_code=nodecodes.glue
+local nuts=nodes.nuts
+local nodepool=nuts.pool
+local tonode=nuts.tonode
+local tonut=nuts.tonut
+local setfield=nuts.setfield
+local getnext=nuts.getnext
+local getprev=nuts.getprev
+local getid=nuts.getid
+local getfont=nuts.getfont
+local getchar=nuts.getchar
+local getoffsets=nuts.getoffsets
+local getboth=nuts.getboth
+local getdisc=nuts.getdisc
+local setdisc=nuts.setdisc
+local setoffsets=nuts.setoffsets
+local ischar=nuts.ischar
+local getkern=nuts.getkern
+local setkern=nuts.setkern
+local setlink=nuts.setlink
+local setwidth=nuts.setwidth
+local getwidth=nuts.getwidth
+local nextchar=nuts.traversers.char
+local nextglue=nuts.traversers.glue
+local insert_node_before=nuts.insert_before
+local insert_node_after=nuts.insert_after
+local properties=nodes.properties.data
+local fontkern=nuts.pool and nuts.pool.fontkern   
+local italickern=nuts.pool and nuts.pool.italickern 
+local useitalickerns=false
+directives.register("fonts.injections.useitalics",function(v)
+ if v then
+  report_injections("using italics for space kerns (tracing only)")
+ end
+ useitalickerns=v
+end)
+do if not fontkern then 
+ local thekern=nuts.new("kern",0) 
+ local setkern=nuts.setkern
+ local copy_node=nuts.copy_node
+ fontkern=function(k)
+  local n=copy_node(thekern)
+  setkern(n,k)
+  return n
+ end
+end end
+do if not italickern then 
+ local thekern=nuts.new("kern",3) 
+ local setkern=nuts.setkern
+ local copy_node=nuts.copy_node
+ italickern=function(k)
+  local n=copy_node(thekern)
+  setkern(n,k)
+  return n
+ end
+end end
+function injections.installnewkern() end 
+local nofregisteredkerns=0
+local nofregisteredpositions=0
+local nofregisteredmarks=0
+local nofregisteredcursives=0
+local keepregisteredcounts=false
+function injections.keepcounts()
+ keepregisteredcounts=true
+end
+function injections.resetcounts()
+ nofregisteredkerns=0
+ nofregisteredpositions=0
+ nofregisteredmarks=0
+ nofregisteredcursives=0
+ keepregisteredcounts=false
+end
+function injections.reset(n)
+ local p=rawget(properties,n)
+ if p then
+  p.injections=false 
+ else
+  properties[n]=false 
+ end
+end
+function injections.copy(target,source)
+ local sp=rawget(properties,source)
+ if sp then
+  local tp=rawget(properties,target)
+  local si=sp.injections
+  if si then
+   si=fastcopy(si)
+   if tp then
+    tp.injections=si
+   else
+    properties[target]={
+     injections=si,
+    }
+   end
+  elseif tp then
+   tp.injections=false 
+  else
+   properties[target]={ injections={} }
+  end
+ else
+  local tp=rawget(properties,target)
+  if tp then
+   tp.injections=false 
+  else
+   properties[target]=false 
+  end
+ end
+end
+function injections.setligaindex(n,index) 
+ local p=rawget(properties,n)
+ if p then
+  local i=p.injections
+  if i then
+   i.ligaindex=index
+  else
+   p.injections={
+    ligaindex=index
+   }
+  end
+ else
+  properties[n]={
+   injections={
+    ligaindex=index
+   }
+  }
+ end
+end
+function injections.getligaindex(n,default)
+ local p=rawget(properties,n)
+ if p then
+  local i=p.injections
+  if i then
+   return i.ligaindex or default
+  end
+ end
+ return default
+end
+function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmnext,r2lflag)
+ local dx=factor*(exit[1]-entry[1])
+ local dy=-factor*(exit[2]-entry[2])
+ local ws=tfmstart.width
+ local wn=tfmnext.width
+ nofregisteredcursives=nofregisteredcursives+1
+ if rlmode<0 then
+  dx=-(dx+wn)
+ else
+  dx=dx-ws
+ end
+ if dx==0 then
+  dx=0
+ end
+ local p=rawget(properties,start)
+ if p then
+  local i=p.injections
+  if i then
+   i.cursiveanchor=true
+  else
+   p.injections={
+    cursiveanchor=true,
+   }
+  end
+ else
+  properties[start]={
+   injections={
+    cursiveanchor=true,
+   },
+  }
+ end
+ local p=rawget(properties,nxt)
+ if p then
+  local i=p.injections
+  if i then
+   i.cursivex=dx
+   i.cursivey=dy
+  else
+   p.injections={
+    cursivex=dx,
+    cursivey=dy,
+   }
+  end
+ else
+  properties[nxt]={
+   injections={
+    cursivex=dx,
+    cursivey=dy,
+   },
+  }
+ end
+ return dx,dy,nofregisteredcursives
+end
+function injections.setposition(kind,current,factor,rlmode,spec,injection)
+ local x=factor*(spec[1] or 0)
+ local y=factor*(spec[2] or 0)
+ local w=factor*(spec[3] or 0)
+ local h=factor*(spec[4] or 0)
+ if x~=0 or w~=0 or y~=0 or h~=0 then 
+  local yoffset=y-h
+  local leftkern=x   
+  local rightkern=w-x  
+  if leftkern~=0 or rightkern~=0 or yoffset~=0 then
+   nofregisteredpositions=nofregisteredpositions+1
+   if rlmode and rlmode<0 then
+    leftkern,rightkern=rightkern,leftkern
+   end
+   if not injection then
+    injection="injections"
+   end
+   local p=rawget(properties,current)
+   if p then
+    local i=p[injection]
+    if i then
+     if leftkern~=0 then
+      i.leftkern=(i.leftkern  or 0)+leftkern
+     end
+     if rightkern~=0 then
+      i.rightkern=(i.rightkern or 0)+rightkern
+     end
+     if yoffset~=0 then
+      i.yoffset=(i.yoffset or 0)+yoffset
+     end
+    elseif leftkern~=0 or rightkern~=0 then
+     p[injection]={
+      leftkern=leftkern,
+      rightkern=rightkern,
+      yoffset=yoffset,
+     }
+    else
+     p[injection]={
+      yoffset=yoffset,
+     }
+    end
+   elseif leftkern~=0 or rightkern~=0 then
+    properties[current]={
+     [injection]={
+      leftkern=leftkern,
+      rightkern=rightkern,
+      yoffset=yoffset,
+     },
+    }
+   else
+    properties[current]={
+     [injection]={
+      yoffset=yoffset,
+     },
+    }
+   end
+   return x,y,w,h,nofregisteredpositions
+   end
+ end
+ return x,y,w,h 
+end
+function injections.setkern(current,factor,rlmode,x,injection)
+ local dx=factor*x
+ if dx~=0 then
+  nofregisteredkerns=nofregisteredkerns+1
+  local p=rawget(properties,current)
+  if not injection then
+   injection="injections"
+  end
+  if p then
+   local i=p[injection]
+   if i then
+    i.leftkern=dx+(i.leftkern or 0)
+   else
+    p[injection]={
+     leftkern=dx,
+    }
+   end
+  else
+   properties[current]={
+    [injection]={
+     leftkern=dx,
+    },
+   }
+  end
+  return dx,nofregisteredkerns
+ else
+  return 0,0
+ end
+end
+function injections.setmove(current,factor,rlmode,x,injection)
+ local dx=factor*x
+ if dx~=0 then
+  nofregisteredkerns=nofregisteredkerns+1
+  local p=rawget(properties,current)
+  if not injection then
+   injection="injections"
+  end
+  if rlmode and rlmode<0 then
+   if p then
+    local i=p[injection]
+    if i then
+     i.rightkern=dx+(i.rightkern or 0)
+    else
+     p[injection]={
+      rightkern=dx,
+     }
+    end
+   else
+    properties[current]={
+     [injection]={
+      rightkern=dx,
+     },
+    }
+   end
+  else
+   if p then
+    local i=p[injection]
+    if i then
+     i.leftkern=dx+(i.leftkern or 0)
+    else
+     p[injection]={
+      leftkern=dx,
+     }
+    end
+   else
+    properties[current]={
+     [injection]={
+      leftkern=dx,
+     },
+    }
+   end
+  end
+  return dx,nofregisteredkerns
+ else
+  return 0,0
+ end
+end
+function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase,mkmk,checkmark) 
+ local dx=factor*(ba[1]-ma[1])
+ local dy=factor*(ba[2]-ma[2])
+ nofregisteredmarks=nofregisteredmarks+1
+ if rlmode>=0 then
+  dx=tfmbase.width-dx 
+ end
+ local p=rawget(properties,start)
+ if p then
+  local i=p.injections
+  if i then
+   if i.markmark then
+   else
+    i.markx=dx
+    i.marky=dy
+    i.markdir=rlmode or 0
+    i.markbase=nofregisteredmarks
+    i.markbasenode=base
+    i.markmark=mkmk
+    i.checkmark=checkmark
+   end
+  else
+   p.injections={
+    markx=dx,
+    marky=dy,
+    markdir=rlmode or 0,
+    markbase=nofregisteredmarks,
+    markbasenode=base,
+    markmark=mkmk,
+    checkmark=checkmark,
+   }
+  end
+ else
+  properties[start]={
+   injections={
+    markx=dx,
+    marky=dy,
+    markdir=rlmode or 0,
+    markbase=nofregisteredmarks,
+    markbasenode=base,
+    markmark=mkmk,
+    checkmark=checkmark,
+   },
+  }
+ end
+ return dx,dy,nofregisteredmarks
+end
+local function dir(n)
+ return (n and n<0 and "r-to-l") or (n and n>0 and "l-to-r") or "unset"
+end
+local function showchar(n,nested)
+ local char=getchar(n)
+ report_injections("%wfont %s, char %U, glyph %c",nested and 2 or 0,getfont(n),char,char)
+end
+local function show(n,what,nested,symbol)
+ if n then
+  local p=rawget(properties,n)
+  if p then
+   local i=p[what]
+   if i then
+    local leftkern=i.leftkern  or 0
+    local rightkern=i.rightkern or 0
+    local yoffset=i.yoffset   or 0
+    local markx=i.markx  or 0
+    local marky=i.marky  or 0
+    local markdir=i.markdir   or 0
+    local markbase=i.markbase  or 0
+    local cursivex=i.cursivex  or 0
+    local cursivey=i.cursivey  or 0
+    local ligaindex=i.ligaindex or 0
+    local cursbase=i.cursiveanchor
+    local margin=nested and 4 or 2
+    if rightkern~=0 or yoffset~=0 then
+     report_injections("%w%s pair: lx %p, rx %p, dy %p",margin,symbol,leftkern,rightkern,yoffset)
+    elseif leftkern~=0 then
+     report_injections("%w%s kern: dx %p",margin,symbol,leftkern)
+    end
+    if markx~=0 or marky~=0 or markbase~=0 then
+     report_injections("%w%s mark: dx %p, dy %p, dir %s, base %s",margin,symbol,markx,marky,markdir,markbase~=0 and "yes" or "no")
+    end
+    if cursivex~=0 or cursivey~=0 then
+     if cursbase then
+      report_injections("%w%s curs: base dx %p, dy %p",margin,symbol,cursivex,cursivey)
+     else
+      report_injections("%w%s curs: dx %p, dy %p",margin,symbol,cursivex,cursivey)
+     end
+    elseif cursbase then
+     report_injections("%w%s curs: base",margin,symbol)
+    end
+    if ligaindex~=0 then
+     report_injections("%w%s liga: index %i",margin,symbol,ligaindex)
+    end
+   end
+  end
+ end
+end
+local function showsub(n,what,where)
+ report_injections("begin subrun: %s",where)
+ for n in nextchar,n do
+  showchar(n,where)
+  show(n,what,where," ")
+ end
+ report_injections("end subrun")
+end
+local function trace(head,where)
+ report_injections()
+ report_injections("begin run %s: %s kerns, %s positions, %s marks and %s cursives registered",
+  where or "",nofregisteredkerns,nofregisteredpositions,nofregisteredmarks,nofregisteredcursives)
+ local n=head
+ while n do
+  local id=getid(n)
+  if id==glyph_code then
+   showchar(n)
+   show(n,"injections",false," ")
+   show(n,"preinjections",false,"<")
+   show(n,"postinjections",false,">")
+   show(n,"replaceinjections",false,"=")
+   show(n,"emptyinjections",false,"*")
+  elseif id==disc_code then
+   local pre,post,replace=getdisc(n)
+   if pre then
+    showsub(pre,"preinjections","pre")
+   end
+   if post then
+    showsub(post,"postinjections","post")
+   end
+   if replace then
+    showsub(replace,"replaceinjections","replace")
+   end
+   show(n,"emptyinjections",false,"*")
+  end
+  n=getnext(n)
+ end
+ report_injections("end run")
+end
+local function show_result(head)
+ local current=head
+ local skipping=false
+ while current do
+  local id=getid(current)
+  if id==glyph_code then
+   local w=getwidth(current)
+   local x,y=getoffsets(current)
+   report_injections("char: %C, width %p, xoffset %p, yoffset %p",getchar(current),w,x,y)
+   skipping=false
+  elseif id==kern_code then
+   report_injections("kern: %p",getkern(current))
+   skipping=false
+  elseif not skipping then
+   report_injections()
+   skipping=true
+  end
+  current=getnext(current)
+ end
+ report_injections()
+end
+local function inject_kerns_only(head,where)
+ if trace_injections then
+  trace(head,"kerns")
+ end
+ local current=head
+ local prev=nil
+ local next=nil
+ local prevdisc=nil
+ local pre=nil 
+ local post=nil 
+ local replace=nil 
+ local pretail=nil 
+ local posttail=nil 
+ local replacetail=nil 
+ while current do
+  local next=getnext(current)
+  local char,id=ischar(current)
+  if char then
+   local p=rawget(properties,current)
+   if p then
+    local i=p.injections
+    if i then
+     local leftkern=i.leftkern
+     if leftkern and leftkern~=0 then
+      head=insert_node_before(head,current,fontkern(leftkern))
+     end
+    end
+    if prevdisc then
+     local done=false
+     if post then
+      local i=p.postinjections
+      if i then
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        setlink(posttail,fontkern(leftkern))
+        done=true
+       end
+      end
+     end
+     if replace then
+      local i=p.replaceinjections
+      if i then
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        setlink(replacetail,fontkern(leftkern))
+        done=true
+       end
+      end
+     else
+      local i=p.emptyinjections
+      if i then
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        replace=fontkern(leftkern)
+        done=true
+       end
+      end
+     end
+     if done then
+      setdisc(prevdisc,pre,post,replace)
+     end
+    end
+   end
+   prevdisc=nil
+  elseif char==false then
+   prevdisc=nil
+  elseif id==disc_code then
+   pre,post,replace,pretail,posttail,replacetail=getdisc(current,true)
+   local done=false
+   if pre then
+    for n in nextchar,pre do
+     local p=rawget(properties,n)
+     if p then
+      local i=p.injections or p.preinjections
+      if i then
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        pre=insert_node_before(pre,n,fontkern(leftkern))
+        done=true
+       end
+      end
+     end
+    end
+   end
+   if post then
+    for n in nextchar,post do
+     local p=rawget(properties,n)
+     if p then
+      local i=p.injections or p.postinjections
+      if i then
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        post=insert_node_before(post,n,fontkern(leftkern))
+        done=true
+       end
+      end
+     end
+    end
+   end
+   if replace then
+    for n in nextchar,replace do
+     local p=rawget(properties,n)
+     if p then
+      local i=p.injections or p.replaceinjections
+      if i then
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        replace=insert_node_before(replace,n,fontkern(leftkern))
+        done=true
+       end
+      end
+     end
+    end
+   end
+   if done then
+    setdisc(current,pre,post,replace)
+   end
+   prevdisc=current
+  else
+   prevdisc=nil
+  end
+  prev=current
+  current=next
+ end
+ if keepregisteredcounts then
+  keepregisteredcounts=false
+ else
+  nofregisteredkerns=0
+ end
+ if trace_injections then
+  show_result(head)
+ end
+ return head
+end
+local function inject_positions_only(head,where)
+ if trace_injections then
+  trace(head,"positions")
+ end
+ local current=head
+ local prev=nil
+ local next=nil
+ local prevdisc=nil
+ local prevglyph=nil
+ local pre=nil 
+ local post=nil 
+ local replace=nil 
+ local pretail=nil 
+ local posttail=nil 
+ local replacetail=nil 
+ while current do
+  local next=getnext(current)
+  local char,id=ischar(current)
+  if char then
+   local p=rawget(properties,current)
+   if p then
+    local i=p.injections
+    if i then
+     local yoffset=i.yoffset
+     if yoffset and yoffset~=0 then
+      setoffsets(current,false,yoffset)
+     end
+     local leftkern=i.leftkern
+     local rightkern=i.rightkern
+     if leftkern and leftkern~=0 then
+      if rightkern and leftkern==-rightkern then
+       setoffsets(current,leftkern,false)
+       rightkern=0
+      else
+       head=insert_node_before(head,current,fontkern(leftkern))
+      end
+     end
+     if rightkern and rightkern~=0 then
+      insert_node_after(head,current,fontkern(rightkern))
+     end
+    else
+     local i=p.emptyinjections
+     if i then
+      local rightkern=i.rightkern
+      if rightkern and rightkern~=0 then
+       if next and getid(next)==disc_code then
+        if replace then
+        else
+         replace=fontkern(rightkern) 
+         done=true	
+        end
+       end
+      end
+     end
+    end
+    if prevdisc then
+     local done=false
+     if post then
+      local i=p.postinjections
+      if i then
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        setlink(posttail,fontkern(leftkern))
+        done=true
+       end
+      end
+     end
+     if replace then
+      local i=p.replaceinjections
+      if i then
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        setlink(replacetail,fontkern(leftkern))
+        done=true
+       end
+      end
+     else
+      local i=p.emptyinjections
+      if i then
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        replace=fontkern(leftkern)
+        done=true
+       end
+      end
+     end
+     if done then
+      setdisc(prevdisc,pre,post,replace)
+     end
+    end
+   end
+   prevdisc=nil
+   prevglyph=current
+  elseif char==false then
+   prevdisc=nil
+   prevglyph=current
+  elseif id==disc_code then
+   pre,post,replace,pretail,posttail,replacetail=getdisc(current,true)
+   local done=false
+   if pre then
+    for n in nextchar,pre do
+     local p=rawget(properties,n)
+     if p then
+      local i=p.injections or p.preinjections
+      if i then
+       local yoffset=i.yoffset
+       if yoffset and yoffset~=0 then
+        setoffsets(n,false,yoffset)
+       end
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        pre=insert_node_before(pre,n,fontkern(leftkern))
+        done=true
+       end
+       local rightkern=i.rightkern
+       if rightkern and rightkern~=0 then
+        insert_node_after(pre,n,fontkern(rightkern))
+        done=true
+       end
+      end
+     end
+    end
+   end
+   if post then
+    for n in nextchar,post do
+     local p=rawget(properties,n)
+     if p then
+      local i=p.injections or p.postinjections
+      if i then
+       local yoffset=i.yoffset
+       if yoffset and yoffset~=0 then
+        setoffsets(n,false,yoffset)
+       end
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        post=insert_node_before(post,n,fontkern(leftkern))
+        done=true
+       end
+       local rightkern=i.rightkern
+       if rightkern and rightkern~=0 then
+        insert_node_after(post,n,fontkern(rightkern))
+        done=true
+       end
+      end
+     end
+    end
+   end
+   if replace then
+    for n in nextchar,replace do
+     local p=rawget(properties,n)
+     if p then
+      local i=p.injections or p.replaceinjections
+      if i then
+       local yoffset=i.yoffset
+       if yoffset and yoffset~=0 then
+        setoffsets(n,false,yoffset)
+       end
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        replace=insert_node_before(replace,n,fontkern(leftkern))
+        done=true
+       end
+       local rightkern=i.rightkern
+       if rightkern and rightkern~=0 then
+        insert_node_after(replace,n,fontkern(rightkern))
+        done=true
+       end
+      end
+     end
+    end
+   end
+   if prevglyph then
+    if pre then
+     local p=rawget(properties,prevglyph)
+     if p then
+      local i=p.preinjections
+      if i then
+       local rightkern=i.rightkern
+       if rightkern and rightkern~=0 then
+        pre=insert_node_before(pre,pre,fontkern(rightkern))
+        done=true
+       end
+      end
+     end
+    end
+    if replace then
+     local p=rawget(properties,prevglyph)
+     if p then
+      local i=p.replaceinjections
+      if i then
+       local rightkern=i.rightkern
+       if rightkern and rightkern~=0 then
+        replace=insert_node_before(replace,replace,fontkern(rightkern))
+        done=true
+       end
+      end
+     end
+    end
+   end
+   if done then
+    setdisc(current,pre,post,replace)
+   end
+   prevglyph=nil
+   prevdisc=current
+  else
+   prevglyph=nil
+   prevdisc=nil
+  end
+  prev=current
+  current=next
+ end
+ if keepregisteredcounts then
+  keepregisteredcounts=false
+ else
+  nofregisteredpositions=0
+ end
+ if trace_injections then
+  show_result(head)
+ end
+ return head
+end
+local function showoffset(n,flag)
+ local x,y=getoffsets(n)
+ if x~=0 or y~=0 then
+  setcolor(n,"darkgray")
+ end
+end
+local function inject_everything(head,where)
+ if trace_injections then
+  trace(head,"everything")
+ end
+ local hascursives=nofregisteredcursives>0
+ local hasmarks=nofregisteredmarks>0
+ local current=head
+ local last=nil
+ local prev=nil
+ local next=nil
+ local prevdisc=nil
+ local prevglyph=nil
+ local pre=nil 
+ local post=nil 
+ local replace=nil 
+ local pretail=nil 
+ local posttail=nil 
+ local replacetail=nil
+ local cursiveanchor=nil
+ local minc=0
+ local maxc=0
+ local glyphs={}
+ local marks={}
+ local nofmarks=0
+ local function processmark(p,n,pn) 
+  local px,py=getoffsets(p)
+  local nx,ny=getoffsets(n)
+  local ox=0
+  local rightkern=nil
+  local pp=rawget(properties,p)
+  if pp then
+   pp=pp.injections
+   if pp then
+    rightkern=pp.rightkern
+   end
+  end
+  local markdir=pn.markdir
+  if rightkern then 
+   ox=px-(pn.markx or 0)-rightkern
+   if markdir and markdir<0 then
+    if not pn.markmark then
+     ox=ox+(pn.leftkern or 0)
+    end
+   else
+    if false then
+     local leftkern=pp.leftkern
+     if leftkern then
+      ox=ox-leftkern
+     end
+    end
+   end
+  else
+   ox=px-(pn.markx or 0)
+   if markdir and markdir<0 then
+    if not pn.markmark then
+     local leftkern=pn.leftkern
+     if leftkern then
+      ox=ox+leftkern 
+     end
+    end
+   end
+   if pn.checkmark then
+    local wn=getwidth(n) 
+    if wn and wn~=0 then
+     wn=wn/2
+     if trace_injections then
+      report_injections("correcting non zero width mark %C",getchar(n))
+     end
+     insert_node_before(n,n,fontkern(-wn))
+     insert_node_after(n,n,fontkern(-wn))
+    end
+   end
+  end
+  local oy=ny+py+(pn.marky or 0)
+  if not pn.markmark then
+   local yoffset=pn.yoffset
+   if yoffset then
+    oy=oy+yoffset 
+   end
+  end
+  setoffsets(n,ox,oy)
+  if trace_marks then
+   showoffset(n,true)
+  end
+ end
+ while current do
+  local next=getnext(current)
+  local char,id=ischar(current)
+  if char then
+   local p=rawget(properties,current)
+   if p then
+    local i=p.injections
+    if i then
+     local pm=i.markbasenode
+     if pm then
+      nofmarks=nofmarks+1
+      marks[nofmarks]=current
+     else
+      local yoffset=i.yoffset
+      if yoffset and yoffset~=0 then
+       setoffsets(current,false,yoffset)
+      end
+      if hascursives then
+       local cursivex=i.cursivex
+       if cursivex then
+        if cursiveanchor then
+         if cursivex~=0 then
+          i.leftkern=(i.leftkern or 0)+cursivex
+         end
+         if maxc==0 then
+          minc=1
+          maxc=1
+          glyphs[1]=cursiveanchor
+         else
+          maxc=maxc+1
+          glyphs[maxc]=cursiveanchor
+         end
+         properties[cursiveanchor].cursivedy=i.cursivey 
+         last=current
+        else
+         maxc=0
+        end
+       elseif maxc>0 then
+        local nx,ny=getoffsets(current)
+        for i=maxc,minc,-1 do
+         local ti=glyphs[i]
+         ny=ny+properties[ti].cursivedy
+         setoffsets(ti,false,ny) 
+         if trace_cursive then
+          showoffset(ti)
+         end
+        end
+        maxc=0
+        cursiveanchor=nil
+       end
+       if i.cursiveanchor then
+        cursiveanchor=current 
+       else
+        if maxc>0 then
+         local nx,ny=getoffsets(current)
+         for i=maxc,minc,-1 do
+          local ti=glyphs[i]
+          ny=ny+properties[ti].cursivedy
+          setoffsets(ti,false,ny) 
+          if trace_cursive then
+           showoffset(ti)
+          end
+         end
+         maxc=0
+        end
+        cursiveanchor=nil
+       end
+      end
+      local leftkern=i.leftkern
+      local rightkern=i.rightkern
+      if leftkern and leftkern~=0 then
+       if rightkern and leftkern==-rightkern then
+        setoffsets(current,leftkern,false)
+        rightkern=0
+       else
+        head=insert_node_before(head,current,fontkern(leftkern))
+       end
+      end
+      if rightkern and rightkern~=0 then
+       insert_node_after(head,current,fontkern(rightkern))
+      end
+     end
+    else
+     local i=p.emptyinjections
+     if i then
+      local rightkern=i.rightkern
+      if rightkern and rightkern~=0 then
+       if next and getid(next)==disc_code then
+        if replace then
+        else
+         replace=fontkern(rightkern)
+         done=true
+        end
+       end
+      end
+     end
+    end
+    if prevdisc then
+     if p then
+      local done=false
+      if post then
+       local i=p.postinjections
+       if i then
+        local leftkern=i.leftkern
+        if leftkern and leftkern~=0 then
+         setlink(posttail,fontkern(leftkern))
+         done=true
+        end
+       end
+      end
+      if replace then
+       local i=p.replaceinjections
+       if i then
+        local leftkern=i.leftkern
+        if leftkern and leftkern~=0 then
+         setlink(replacetail,fontkern(leftkern))
+         done=true
+        end
+       end
+      else
+       local i=p.emptyinjections
+       if i then
+        local leftkern=i.leftkern
+        if leftkern and leftkern~=0 then
+         replace=fontkern(leftkern)
+         done=true
+        end
+       end
+      end
+      if done then
+       setdisc(prevdisc,pre,post,replace)
+      end
+     end
+    end
+   else
+    if hascursives and maxc>0 then
+     local nx,ny=getoffsets(current)
+     for i=maxc,minc,-1 do
+      local ti=glyphs[i]
+      ny=ny+properties[ti].cursivedy
+      local xi,yi=getoffsets(ti)
+      setoffsets(ti,xi,yi+ny) 
+     end
+     maxc=0
+     cursiveanchor=nil
+    end
+   end
+   prevdisc=nil
+   prevglyph=current
+  elseif char==false then
+   prevdisc=nil
+   prevglyph=current
+  elseif id==disc_code then
+   pre,post,replace,pretail,posttail,replacetail=getdisc(current,true)
+   local done=false
+   if pre then
+    for n in nextchar,pre do
+     local p=rawget(properties,n)
+     if p then
+      local i=p.injections or p.preinjections
+      if i then
+       local yoffset=i.yoffset
+       if yoffset and yoffset~=0 then
+        setoffsets(n,false,yoffset)
+       end
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        pre=insert_node_before(pre,n,fontkern(leftkern))
+        done=true
+       end
+       local rightkern=i.rightkern
+       if rightkern and rightkern~=0 then
+        insert_node_after(pre,n,fontkern(rightkern))
+        done=true
+       end
+       if hasmarks then
+        local pm=i.markbasenode
+        if pm then
+         processmark(pm,n,i)
+        end
+       end
+      end
+     end
+    end
+   end
+   if post then
+    for n in nextchar,post do
+     local p=rawget(properties,n)
+     if p then
+      local i=p.injections or p.postinjections
+      if i then
+       local yoffset=i.yoffset
+       if yoffset and yoffset~=0 then
+        setoffsets(n,false,yoffset)
+       end
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        post=insert_node_before(post,n,fontkern(leftkern))
+        done=true
+       end
+       local rightkern=i.rightkern
+       if rightkern and rightkern~=0 then
+        insert_node_after(post,n,fontkern(rightkern))
+        done=true
+       end
+       if hasmarks then
+        local pm=i.markbasenode
+        if pm then
+         processmark(pm,n,i)
+        end
+       end
+      end
+     end
+    end
+   end
+   if replace then
+    for n in nextchar,replace do
+     local p=rawget(properties,n)
+     if p then
+      local i=p.injections or p.replaceinjections
+      if i then
+       local yoffset=i.yoffset
+       if yoffset and yoffset~=0 then
+        setoffsets(n,false,yoffset)
+       end
+       local leftkern=i.leftkern
+       if leftkern and leftkern~=0 then
+        replace=insert_node_before(replace,n,fontkern(leftkern))
+        done=true
+       end
+       local rightkern=i.rightkern
+       if rightkern and rightkern~=0 then
+        insert_node_after(replace,n,fontkern(rightkern))
+        done=true
+       end
+       if hasmarks then
+        local pm=i.markbasenode
+        if pm then
+         processmark(pm,n,i)
+        end
+       end
+      end
+     end
+    end
+   end
+   if prevglyph then
+    if pre then
+     local p=rawget(properties,prevglyph)
+     if p then
+      local i=p.preinjections
+      if i then
+       local rightkern=i.rightkern
+       if rightkern and rightkern~=0 then
+        pre=insert_node_before(pre,pre,fontkern(rightkern))
+        done=true
+       end
+      end
+     end
+    end
+    if replace then
+     local p=rawget(properties,prevglyph)
+     if p then
+      local i=p.replaceinjections
+      if i then
+       local rightkern=i.rightkern
+       if rightkern and rightkern~=0 then
+        replace=insert_node_before(replace,replace,fontkern(rightkern))
+        done=true
+       end
+      end
+     end
+    end
+   end
+   if done then
+    setdisc(current,pre,post,replace)
+   end
+   prevglyph=nil
+   prevdisc=current
+  else
+   prevglyph=nil
+   prevdisc=nil
+  end
+  prev=current
+  current=next
+ end
+ if hascursives and maxc>0 then
+  local nx,ny=getoffsets(last)
+  for i=maxc,minc,-1 do
+   local ti=glyphs[i]
+   ny=ny+properties[ti].cursivedy
+   setoffsets(ti,false,ny) 
+   if trace_cursive then
+    showoffset(ti)
+   end
+  end
+ end
+ if nofmarks>0 then
+  for i=1,nofmarks do
+   local m=marks[i]
+   local p=rawget(properties,m)
+   local i=p.injections
+   local b=i.markbasenode
+   processmark(b,m,i)
+  end
+ elseif hasmarks then
+ end
+ if keepregisteredcounts then
+  keepregisteredcounts=false
+ else
+  nofregisteredkerns=0
+  nofregisteredpositions=0
+  nofregisteredmarks=0
+  nofregisteredcursives=0
+ end
+ if trace_injections then
+  show_result(head)
+ end
+ return head
+end
+local triggers=false
+function nodes.injections.setspacekerns(font,sequence)
+ if triggers then
+  triggers[font]=sequence
+ else
+  triggers={ [font]=sequence }
+ end
+end
+local getthreshold
+if context then
+
+--removed
+
+else
+ injections.threshold=0
+ getthreshold=function(font)
+  local p=fontdata[font].parameters
+  local f=p.factor
+  local s=p.spacing
+  local t=injections.threshold*(s and s.width or p.space or 0)-2
+  return t>0 and t or 0,f
+ end
+end
+injections.getthreshold=getthreshold
+function injections.isspace(n,threshold,id)
+ if (id or getid(n))==glue_code then
+  local w=getwidth(n)
+  if threshold and w>threshold then 
+   return 32
+  end
+ end
+end
+local getspaceboth=getboth
+function injections.installgetspaceboth(gb)
+ getspaceboth=gb or getboth
+end
+local function injectspaces(head)
+ if not triggers then
+  return head
+ end
+ local lastfont=nil
+ local spacekerns=nil
+ local leftkerns=nil
+ local rightkerns=nil
+ local factor=0
+ local threshold=0
+ local leftkern=false
+ local rightkern=false
+ local function updatefont(font,trig)
+  leftkerns=trig.left
+  rightkerns=trig.right
+  lastfont=font
+  threshold,
+  factor=getthreshold(font)
+ end
+ for n in nextglue,head do
+  local prev,next=getspaceboth(n)
+  local prevchar=prev and ischar(prev)
+  local nextchar=next and ischar(next)
+  if nextchar then
+   local font=getfont(next)
+   local trig=triggers[font]
+   if trig then
+    if lastfont~=font then
+     updatefont(font,trig)
+    end
+    if rightkerns then
+     rightkern=rightkerns[nextchar]
+    end
+   end
+  end
+  if prevchar then
+   local font=getfont(prev)
+   local trig=triggers[font]
+   if trig then
+    if lastfont~=font then
+     updatefont(font,trig)
+    end
+    if leftkerns then
+     leftkern=leftkerns[prevchar]
+    end
+   end
+  end
+  if leftkern then
+   local old=getwidth(n)
+   if old>threshold then
+    if rightkern then
+     if useitalickerns then
+      local lnew=leftkern*factor
+      local rnew=rightkern*factor
+      if trace_spaces then
+       report_spaces("%C [%p + %p + %p] %C",prevchar,lnew,old,rnew,nextchar)
+      end
+      head=insert_node_before(head,n,italickern(lnew))
+      insert_node_after(head,n,italickern(rnew))
+     else
+      local new=old+(leftkern+rightkern)*factor
+      if trace_spaces then
+       report_spaces("%C [%p -> %p] %C",prevchar,old,new,nextchar)
+      end
+      setwidth(n,new)
+     end
+     rightkern=false
+    else
+     if useitalickerns then
+      local new=leftkern*factor
+      if trace_spaces then
+       report_spaces("%C [%p + %p]",prevchar,old,new)
+      end
+      insert_node_after(head,n,italickern(new)) 
+     else
+      local new=old+leftkern*factor
+      if trace_spaces then
+       report_spaces("%C [%p -> %p]",prevchar,old,new)
+      end
+      setwidth(n,new)
+     end
+    end
+   end
+   leftkern=false
+  elseif rightkern then
+   local old=getwidth(n)
+   if old>threshold then
+    if useitalickerns then
+     local new=rightkern*factor
+     if trace_spaces then
+      report_spaces("%C [%p + %p]",nextchar,old,new)
+     end
+     insert_node_after(head,n,italickern(new))
+    else
+     local new=old+rightkern*factor
+     if trace_spaces then
+      report_spaces("[%p -> %p] %C",nextchar,old,new)
+     end
+     setwidth(n,new)
+    end
+   end
+   rightkern=false
+  end
+ end
+ triggers=false
+ return head
+end
+function injections.handler(head,where)
+ if triggers then
+  head=injectspaces(head)
+ end
+ if nofregisteredmarks>0 or nofregisteredcursives>0 then
+  if trace_injections then
+   report_injections("injection variant %a","everything")
+  end
+  return inject_everything(head,where)
+ elseif nofregisteredpositions>0 then
+  if trace_injections then
+   report_injections("injection variant %a","positions")
+  end
+  return inject_positions_only(head,where)
+ elseif nofregisteredkerns>0 then
+  if trace_injections then
+   report_injections("injection variant %a","kerns")
+  end
+  return inject_kerns_only(head,where)
+ else
+  return head
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-ota']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local type=type
+if not trackers then trackers={ register=function() end } end
+local fonts,nodes,node=fonts,nodes,node
+local allocate=utilities.storage.allocate
+local otf=fonts.handlers.otf
+local analyzers=fonts.analyzers
+local initializers=allocate()
+local methods=allocate()
+analyzers.initializers=initializers
+analyzers.methods=methods
+local a_state=attributes.private('state')
+local nuts=nodes.nuts
+local tonut=nuts.tonut
+local getnext=nuts.getnext
+local getprev=nuts.getprev
+local getprev=nuts.getprev
+local getprop=nuts.getprop
+local setprop=nuts.setprop
+local getsubtype=nuts.getsubtype
+local getchar=nuts.getchar
+local ischar=nuts.ischar
+local end_of_math=nuts.end_of_math
+local nodecodes=nodes.nodecodes
+local disc_code=nodecodes.disc
+local math_code=nodecodes.math
+local fontdata=fonts.hashes.identifiers
+local categories=characters and characters.categories or {} 
+local chardata=characters and characters.data
+local otffeatures=fonts.constructors.features.otf
+local registerotffeature=otffeatures.register
+local s_init=1 local s_rphf=7
+local s_medi=2 local s_half=8
+local s_fina=3 local s_pref=9
+local s_isol=4 local s_blwf=10
+local s_mark=5 local s_pstf=11
+local s_rest=6
+local states=allocate {
+ init=s_init,
+ medi=s_medi,
+ med2=s_medi,
+ fina=s_fina,
+ fin2=s_fina,
+ fin3=s_fina,
+ isol=s_isol,
+ mark=s_mark,
+ rest=s_rest,
+ rphf=s_rphf,
+ half=s_half,
+ pref=s_pref,
+ blwf=s_blwf,
+ pstf=s_pstf,
+}
+local features=allocate {
+ init=s_init,
+ medi=s_medi,
+ med2=s_medi,
+ fina=s_fina,
+ fin2=s_fina,
+ fin3=s_fina,
+ isol=s_isol,
+ rphf=s_rphf,
+ half=s_half,
+ pref=s_pref,
+ blwf=s_blwf,
+ pstf=s_pstf,
+}
+analyzers.states=states
+analyzers.features=features
+analyzers.useunicodemarks=false
+function analyzers.setstate(head,font)
+ local useunicodemarks=analyzers.useunicodemarks
+ local tfmdata=fontdata[font]
+ local descriptions=tfmdata.descriptions
+ local first,last,current,n,done=nil,nil,head,0,false 
+ current=tonut(current)
+ while current do
+  local char,id=ischar(current,font)
+  if char and not getprop(current,a_state) then
+   done=true
+   local d=descriptions[char]
+   if d then
+    if d.class=="mark" then
+     done=true
+     setprop(current,a_state,s_mark)
+    elseif useunicodemarks and categories[char]=="mn" then
+     done=true
+     setprop(current,a_state,s_mark)
+    elseif n==0 then
+     first,last,n=current,current,1
+     setprop(current,a_state,s_init)
+    else
+     last,n=current,n+1
+     setprop(current,a_state,s_medi)
+    end
+   else 
+    if first and first==last then
+     setprop(last,a_state,s_isol)
+    elseif last then
+     setprop(last,a_state,s_fina)
+    end
+    first,last,n=nil,nil,0
+   end
+  elseif char==false then
+   if first and first==last then
+    setprop(last,a_state,s_isol)
+   elseif last then
+    setprop(last,a_state,s_fina)
+   end
+   first,last,n=nil,nil,0
+   if id==math_code then
+    current=end_of_math(current)
+   end
+  elseif id==disc_code then
+   setprop(current,a_state,s_medi)
+   last=current
+  else 
+   if first and first==last then
+    setprop(last,a_state,s_isol)
+   elseif last then
+    setprop(last,a_state,s_fina)
+   end
+   first,last,n=nil,nil,0
+   if id==math_code then
+    current=end_of_math(current)
+   end
+  end
+  current=getnext(current)
+ end
+ if first and first==last then
+  setprop(last,a_state,s_isol)
+ elseif last then
+  setprop(last,a_state,s_fina)
+ end
+ return head,done
+end
+local function analyzeinitializer(tfmdata,value) 
+ local script,language=otf.scriptandlanguage(tfmdata) 
+ local action=initializers[script]
+ if not action then
+ elseif type(action)=="function" then
+  return action(tfmdata,value)
+ else
+  local action=action[language]
+  if action then
+   return action(tfmdata,value)
+  end
+ end
+end
+local function analyzeprocessor(head,font,attr)
+ local tfmdata=fontdata[font]
+ local script,language=otf.scriptandlanguage(tfmdata,attr)
+ local action=methods[script]
+ if not action then
+ elseif type(action)=="function" then
+  return action(head,font,attr)
+ else
+  action=action[language]
+  if action then
+   return action(head,font,attr)
+  end
+ end
+ return head,false
+end
+registerotffeature {
+ name="analyze",
+ description="analysis of character classes",
+ default=true,
+ initializers={
+  node=analyzeinitializer,
+ },
+ processors={
+  position=1,
+  node=analyzeprocessor,
+ }
+}
+methods.latn=analyzers.setstate
+local arab_warned={}
+local function warning(current,what)
+ local char=getchar(current)
+ if not arab_warned[char] then
+  log.report("analyze","arab: character %C has no %a class",char,what)
+  arab_warned[char]=true
+ end
+end
+local mappers=allocate {
+ l=s_init,
+ d=s_medi,
+ c=s_medi,
+ r=s_fina,
+ u=s_isol,
+}
+local classifiers=characters.classifiers
+if not classifiers then
+ local f_arabic,l_arabic=characters.blockrange("arabic")
+ local f_syriac,l_syriac=characters.blockrange("syriac")
+ local f_mandiac,l_mandiac=characters.blockrange("mandiac")
+ local f_nko,l_nko=characters.blockrange("nko")
+ local f_ext_a,l_ext_a=characters.blockrange("arabicextendeda")
+ classifiers=table.setmetatableindex(function(t,k)
+  if type(k)=="number" then
+   local c=chardata[k]
+   local v=false
+   if c then
+    local arabic=c.arabic
+    if arabic then
+     v=mappers[arabic]
+     if not v then
+      log.report("analyze","error in mapping arabic %C",k)
+      v=false
+     end
+    elseif (k>=f_arabic  and k<=l_arabic)  or
+        (k>=f_syriac  and k<=l_syriac)  or
+        (k>=f_mandiac and k<=l_mandiac) or
+        (k>=f_nko  and k<=l_nko)  or
+        (k>=f_ext_a   and k<=l_ext_a)   then
+     if categories[k]=="mn" then
+      v=s_mark
+     else
+      v=s_rest
+     end
+    end
+   end
+   t[k]=v
+   return v
+  end
+ end)
+ characters.classifiers=classifiers
+end
+function methods.arab(head,font,attr)
+ local first,last,c_first,c_last
+ local current=head
+ local done=false
+ current=tonut(current)
+ while current do
+  local char,id=ischar(current,font)
+  if char and not getprop(current,a_state) then
+   done=true
+   local classifier=classifiers[char]
+   if not classifier then
+    if last then
+     if c_last==s_medi or c_last==s_fina then
+      setprop(last,a_state,s_fina)
+     else
+      warning(last,"fina")
+      setprop(last,a_state,s_error)
+     end
+     first,last=nil,nil
+    elseif first then
+     if c_first==s_medi or c_first==s_fina then
+      setprop(first,a_state,s_isol)
+     else
+      warning(first,"isol")
+      setprop(first,a_state,s_error)
+     end
+     first=nil
+    end
+   elseif classifier==s_mark then
+    setprop(current,a_state,s_mark)
+   elseif classifier==s_isol then
+    if last then
+     if c_last==s_medi or c_last==s_fina then
+      setprop(last,a_state,s_fina)
+     else
+      warning(last,"fina")
+      setprop(last,a_state,s_error)
+     end
+     first,last=nil,nil
+    elseif first then
+     if c_first==s_medi or c_first==s_fina then
+      setprop(first,a_state,s_isol)
+     else
+      warning(first,"isol")
+      setprop(first,a_state,s_error)
+     end
+     first=nil
+    end
+    setprop(current,a_state,s_isol)
+   elseif classifier==s_medi then
+    if first then
+     last=current
+     c_last=classifier
+     setprop(current,a_state,s_medi)
+    else
+     setprop(current,a_state,s_init)
+     first=current
+     c_first=classifier
+    end
+   elseif classifier==s_fina then
+    if last then
+     if getprop(last,a_state)~=s_init then
+      setprop(last,a_state,s_medi)
+     end
+     setprop(current,a_state,s_fina)
+     first,last=nil,nil
+    elseif first then
+     setprop(current,a_state,s_fina)
+     first=nil
+    else
+     setprop(current,a_state,s_isol)
+    end
+   else 
+    setprop(current,a_state,s_rest)
+    if last then
+     if c_last==s_medi or c_last==s_fina then
+      setprop(last,a_state,s_fina)
+     else
+      warning(last,"fina")
+      setprop(last,a_state,s_error)
+     end
+     first,last=nil,nil
+    elseif first then
+     if c_first==s_medi or c_first==s_fina then
+      setprop(first,a_state,s_isol)
+     else
+      warning(first,"isol")
+      setprop(first,a_state,s_error)
+     end
+     first=nil
+    end
+   end
+  else
+   if last then
+    if c_last==s_medi or c_last==s_fina then
+     setprop(last,a_state,s_fina)
+    else
+     warning(last,"fina")
+     setprop(last,a_state,s_error)
+    end
+    first,last=nil,nil
+   elseif first then
+    if c_first==s_medi or c_first==s_fina then
+     setprop(first,a_state,s_isol)
+    else
+     warning(first,"isol")
+     setprop(first,a_state,s_error)
+    end
+    first=nil
+   end
+   if id==math_code then 
+    current=end_of_math(current)
+   end
+  end
+  current=getnext(current)
+ end
+ if last then
+  if c_last==s_medi or c_last==s_fina then
+   setprop(last,a_state,s_fina)
+  else
+   warning(last,"fina")
+   setprop(last,a_state,s_error)
+  end
+ elseif first then
+  if c_first==s_medi or c_first==s_fina then
+   setprop(first,a_state,s_isol)
+  else
+   warning(first,"isol")
+   setprop(first,a_state,s_error)
+  end
+ end
+ return head,done
+end
+methods.syrc=methods.arab
+methods.mand=methods.arab
+methods.nko=methods.arab
+directives.register("otf.analyze.useunicodemarks",function(v)
+ analyzers.useunicodemarks=v
+end)
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-ots']={ 
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files",
+}
+local type,next,tonumber=type,next,tonumber
+local random=math.random
+local formatters=string.formatters
+local insert=table.insert
+local registertracker=trackers.register
+local logs=logs
+local trackers=trackers
+local nodes=nodes
+local attributes=attributes
+local fonts=fonts
+local otf=fonts.handlers.otf
+local tracers=nodes.tracers
+local trace_singles=false  registertracker("otf.singles",function(v) trace_singles=v end)
+local trace_multiples=false  registertracker("otf.multiples",function(v) trace_multiples=v end)
+local trace_alternatives=false  registertracker("otf.alternatives",function(v) trace_alternatives=v end)
+local trace_ligatures=false  registertracker("otf.ligatures",function(v) trace_ligatures=v end)
+local trace_contexts=false  registertracker("otf.contexts",function(v) trace_contexts=v end)
+local trace_marks=false  registertracker("otf.marks",function(v) trace_marks=v end)
+local trace_kerns=false  registertracker("otf.kerns",function(v) trace_kerns=v end)
+local trace_cursive=false  registertracker("otf.cursive",function(v) trace_cursive=v end)
+local trace_preparing=false  registertracker("otf.preparing",function(v) trace_preparing=v end)
+local trace_bugs=false  registertracker("otf.bugs",function(v) trace_bugs=v end)
+local trace_details=false  registertracker("otf.details",function(v) trace_details=v end)
+local trace_steps=false  registertracker("otf.steps",function(v) trace_steps=v end)
+local trace_skips=false  registertracker("otf.skips",function(v) trace_skips=v end)
+local trace_plugins=false  registertracker("otf.plugins",function(v) trace_plugins=v end)
+local trace_chains=false  registertracker("otf.chains",function(v) trace_chains=v end)
+local trace_kernruns=false  registertracker("otf.kernruns",function(v) trace_kernruns=v end)
+local trace_compruns=false  registertracker("otf.compruns",function(v) trace_compruns=v end)
+local trace_testruns=false  registertracker("otf.testruns",function(v) trace_testruns=v end)
+local forcediscretionaries=false
+local forcepairadvance=false 
+directives.register("otf.forcediscretionaries",function(v)
+ forcediscretionaries=v
+end)
+directives.register("otf.forcepairadvance",function(v)
+ forcepairadvance=v
+end)
+local report_direct=logs.reporter("fonts","otf direct")
+local report_subchain=logs.reporter("fonts","otf subchain")
+local report_chain=logs.reporter("fonts","otf chain")
+local report_process=logs.reporter("fonts","otf process")
+local report_warning=logs.reporter("fonts","otf warning")
+local report_run=logs.reporter("fonts","otf run")
+registertracker("otf.substitutions","otf.singles","otf.multiples","otf.alternatives","otf.ligatures")
+registertracker("otf.positions","otf.marks","otf.kerns","otf.cursive")
+registertracker("otf.actions","otf.substitutions","otf.positions")
+registertracker("otf.sample","otf.steps","otf.substitutions","otf.positions","otf.analyzing")
+registertracker("otf.sample.silent","otf.steps=silent","otf.substitutions","otf.positions","otf.analyzing")
+local nuts=nodes.nuts
+local getfield=nuts.getfield
+local getnext=nuts.getnext
+local setnext=nuts.setnext
+local getprev=nuts.getprev
+local setprev=nuts.setprev
+local getboth=nuts.getboth
+local setboth=nuts.setboth
+local getid=nuts.getid
+local getprop=nuts.getprop
+local setprop=nuts.setprop
+local getsubtype=nuts.getsubtype
+local setsubtype=nuts.setsubtype
+local getchar=nuts.getchar
+local setchar=nuts.setchar
+local getdisc=nuts.getdisc
+local setdisc=nuts.setdisc
+local setlink=nuts.setlink
+local getcomponents=nuts.getcomponents 
+local setcomponents=nuts.setcomponents 
+local getwidth=nuts.getwidth
+local getattr=nuts.getattr
+local getglyphdata=nuts.getglyphdata
+local ischar=nuts.ischar
+local isglyph=nuts.isglyph
+local usesfont=nuts.uses_font
+local insert_node_after=nuts.insert_after
+local copy_node=nuts.copy
+local copy_node_list=nuts.copy_list
+local remove_node=nuts.remove
+local find_node_tail=nuts.tail
+local flush_node_list=nuts.flush_list
+local flush_node=nuts.flush_node
+local end_of_math=nuts.end_of_math
+local setmetatable=setmetatable
+local setmetatableindex=table.setmetatableindex
+local nextnode=nuts.traversers.node
+local nodecodes=nodes.nodecodes
+local glyphcodes=nodes.glyphcodes
+local disccodes=nodes.disccodes
+local glyph_code=nodecodes.glyph
+local glue_code=nodecodes.glue
+local disc_code=nodecodes.disc
+local math_code=nodecodes.math
+local dir_code=nodecodes.dir
+local localpar_code=nodecodes.localpar
+local discretionarydisc_code=disccodes.discretionary
+local ligatureglyph_code=glyphcodes.ligature
+local a_state=attributes.private('state')
+local a_noligature=attributes.private("noligature")
+local injections=nodes.injections
+local setmark=injections.setmark
+local setcursive=injections.setcursive
+local setkern=injections.setkern
+local setmove=injections.setmove
+local setposition=injections.setposition
+local resetinjection=injections.reset
+local copyinjection=injections.copy
+local setligaindex=injections.setligaindex
+local getligaindex=injections.getligaindex
+local fontdata=fonts.hashes.identifiers
+local fontfeatures=fonts.hashes.features
+local otffeatures=fonts.constructors.features.otf
+local registerotffeature=otffeatures.register
+local onetimemessage=fonts.loggers.onetimemessage or function() end
+local getrandom=utilities and utilities.randomizer and utilities.randomizer.get
+otf.defaultnodealternate="none"
+local tfmdata=false
+local characters=false
+local descriptions=false
+local marks=false
+local classes=false
+local currentfont=false
+local factor=0
+local threshold=0
+local checkmarks=false
+local discs=false
+local spaces=false
+local sweepnode=nil
+local sweephead={} 
+local notmatchpre={} 
+local notmatchpost={} 
+local notmatchreplace={} 
+local handlers={}
+local isspace=injections.isspace
+local getthreshold=injections.getthreshold
+local checkstep=(tracers and tracers.steppers.check) or function() end
+local registerstep=(tracers and tracers.steppers.register) or function() end
+local registermessage=(tracers and tracers.steppers.message)  or function() end
+local function logprocess(...)
+ if trace_steps then
+  registermessage(...)
+  if trace_steps=="silent" then
+   return
+  end
+ end
+ report_direct(...)
+end
+local function logwarning(...)
+ report_direct(...)
+end
+local gref  do
+ local f_unicode=formatters["U+%X"]   
+ local f_uniname=formatters["U+%X (%s)"] 
+ local f_unilist=formatters["% t"]
+ gref=function(n) 
+  if type(n)=="number" then
+   local description=descriptions[n]
+   local name=description and description.name
+   if name then
+    return f_uniname(n,name)
+   else
+    return f_unicode(n)
+   end
+  elseif n then
+   local t={}
+   for i=1,#n do
+    local ni=n[i]
+    if tonumber(ni) then 
+     local di=descriptions[ni]
+     local nn=di and di.name
+     if nn then
+      t[#t+1]=f_uniname(ni,nn)
+     else
+      t[#t+1]=f_unicode(ni)
+     end
+    end
+   end
+   return f_unilist(t)
+  else
+   return "<error in node mode tracing>"
+  end
+ end
+end
+local function cref(dataset,sequence,index)
+ if not dataset then
+  return "no valid dataset"
+ end
+ local merged=sequence.merged and "merged " or ""
+ if index then
+  return formatters["feature %a, type %a, %schain lookup %a, index %a"](
+   dataset[4],sequence.type,merged,sequence.name,index)
+ else
+  return formatters["feature %a, type %a, %schain lookup %a"](
+   dataset[4],sequence.type,merged,sequence.name)
+ end
+end
+local function pref(dataset,sequence)
+ return formatters["feature %a, type %a, %slookup %a"](
+  dataset[4],sequence.type,sequence.merged and "merged " or "",sequence.name)
+end
+local function mref(rlmode)
+ if not rlmode or rlmode>=0 then
+  return "l2r"
+ else
+  return "r2l"
+ end
+end
+local function flattendisk(head,disc)
+ local pre,post,replace,pretail,posttail,replacetail=getdisc(disc,true)
+ local prev,next=getboth(disc)
+ local ishead=head==disc
+ setdisc(disc)
+ flush_node(disc)
+ if pre then
+  flush_node_list(pre)
+ end
+ if post then
+  flush_node_list(post)
+ end
+ if ishead then
+  if replace then
+   if next then
+    setlink(replacetail,next)
+   end
+   return replace,replace
+  elseif next then
+   return next,next
+  else
+  end
+ else
+  if replace then
+   if next then
+    setlink(replacetail,next)
+   end
+   setlink(prev,replace)
+   return head,replace
+  else
+   setlink(prev,next) 
+   return head,next
+  end
+ end
+end
+local function appenddisc(disc,list)
+ local pre,post,replace,pretail,posttail,replacetail=getdisc(disc,true)
+ local posthead=list
+ local replacehead=copy_node_list(list)
+ if post then
+  setlink(posttail,posthead)
+ else
+  post=posthead
+ end
+ if replace then
+  setlink(replacetail,replacehead)
+ else
+  replace=replacehead
+ end
+ setdisc(disc,pre,post,replace)
+end
+local copy_no_components=nuts.copy_no_components
+local copy_only_glyphs=nuts.copy_only_glyphs
+local set_components=setcomponents
+local take_components=getcomponents
+local function count_components(start,marks)
+ local char=isglyph(start)
+ if char then
+  if getsubtype(start)==ligatureglyph_code then
+   local i=0
+   local components=getcomponents(start)
+   while components do
+    i=i+count_components(components,marks)
+    components=getnext(components)
+   end
+   return i
+  elseif not marks[char] then
+   return 1
+  end
+ end
+ return 0
+end
+local function markstoligature(head,start,stop,char)
+ if start==stop and getchar(start)==char then
+  return head,start
+ else
+  local prev=getprev(start)
+  local next=getnext(stop)
+  setprev(start)
+  setnext(stop)
+  local base=copy_no_components(start,copyinjection)
+  if head==start then
+   head=base
+  end
+  resetinjection(base)
+  setchar(base,char)
+  setsubtype(base,ligatureglyph_code)
+  set_components(base,start)
+  setlink(prev,base,next)
+  return head,base
+ end
+end
+local function toligature(head,start,stop,char,dataset,sequence,skiphash,discfound,hasmarks) 
+ if getattr(start,a_noligature)==1 then
+  return head,start
+ end
+ if start==stop and getchar(start)==char then
+  resetinjection(start)
+  setchar(start,char)
+  return head,start
+ end
+ local prev=getprev(start)
+ local next=getnext(stop)
+ local comp=start
+ setprev(start)
+ setnext(stop)
+ local base=copy_no_components(start,copyinjection)
+ if start==head then
+  head=base
+ end
+ resetinjection(base)
+ setchar(base,char)
+ setsubtype(base,ligatureglyph_code)
+ set_components(base,comp)
+ setlink(prev,base,next)
+ if not discfound then
+  local deletemarks=not skiphash or hasmarks
+  local components=start
+  local baseindex=0
+  local componentindex=0
+  local head=base
+  local current=base
+  while start do
+   local char=getchar(start)
+   if not marks[char] then
+    baseindex=baseindex+componentindex
+    componentindex=count_components(start,marks)
+   elseif not deletemarks then
+    setligaindex(start,baseindex+getligaindex(start,componentindex))
+    if trace_marks then
+     logwarning("%s: keep mark %s, gets index %s",pref(dataset,sequence),gref(char),getligaindex(start))
+    end
+    local n=copy_node(start)
+    copyinjection(n,start) 
+    head,current=insert_node_after(head,current,n) 
+   elseif trace_marks then
+    logwarning("%s: delete mark %s",pref(dataset,sequence),gref(char))
+   end
+   start=getnext(start)
+  end
+  local start=getnext(current)
+  while start do
+   local char=ischar(start)
+   if char then
+    if marks[char] then
+     setligaindex(start,baseindex+getligaindex(start,componentindex))
+     if trace_marks then
+      logwarning("%s: set mark %s, gets index %s",pref(dataset,sequence),gref(char),getligaindex(start))
+     end
+     start=getnext(start)
+    else
+     break
+    end
+   else
+    break
+   end
+  end
+ else
+  local discprev,discnext=getboth(discfound)
+  if discprev and discnext then
+   local pre,post,replace,pretail,posttail,replacetail=getdisc(discfound,true)
+   if not replace then
+    local prev=getprev(base)
+    local comp=take_components(base)
+    local copied=copy_only_glyphs(comp)
+    if pre then
+     setlink(discprev,pre)
+    else
+     setnext(discprev) 
+    end
+    pre=comp
+    if post then
+     setlink(posttail,discnext)
+     setprev(post)
+    else
+     post=discnext
+     setprev(discnext) 
+    end
+    setlink(prev,discfound,next)
+    setboth(base)
+    set_components(base,copied)
+    replace=base
+    if forcediscretionaries then
+     setdisc(discfound,pre,post,replace,discretionarydisc_code)
+    else
+     setdisc(discfound,pre,post,replace)
+    end
+    base=prev
+   end
+  end
+ end
+ return head,base
+end
+local function multiple_glyphs(head,start,multiple,skiphash,what,stop) 
+ local nofmultiples=#multiple
+ if nofmultiples>0 then
+  resetinjection(start)
+  setchar(start,multiple[1])
+  if nofmultiples>1 then
+   local sn=getnext(start)
+   for k=2,nofmultiples do
+    local n=copy_node(start) 
+    resetinjection(n)
+    setchar(n,multiple[k])
+    insert_node_after(head,start,n)
+    start=n
+   end
+   if what==true then
+   elseif what>1 then
+    local m=multiple[nofmultiples]
+    for i=2,what do
+     local n=copy_node(start) 
+     resetinjection(n)
+     setchar(n,m)
+     insert_node_after(head,start,n)
+     start=n
+    end
+   end
+  end
+  return head,start,true
+ else
+  if trace_multiples then
+   logprocess("no multiple for %s",gref(getchar(start)))
+  end
+  return head,start,false
+ end
+end
+local function get_alternative_glyph(start,alternatives,value)
+ local n=#alternatives
+ if n==1 then
+  return alternatives[1],trace_alternatives and "1 (only one present)"
+ elseif value=="random" then
+  local r=getrandom and getrandom("glyph",1,n) or random(1,n)
+  return alternatives[r],trace_alternatives and formatters["value %a, taking %a"](value,r)
+ elseif value=="first" then
+  return alternatives[1],trace_alternatives and formatters["value %a, taking %a"](value,1)
+ elseif value=="last" then
+  return alternatives[n],trace_alternatives and formatters["value %a, taking %a"](value,n)
+ end
+ value=value==true and 1 or tonumber(value)
+ if type(value)~="number" then
+  return alternatives[1],trace_alternatives and formatters["invalid value %s, taking %a"](value,1)
+ end
+ if value>n then
+  local defaultalt=otf.defaultnodealternate
+  if defaultalt=="first" then
+   return alternatives[n],trace_alternatives and formatters["invalid value %s, taking %a"](value,1)
+  elseif defaultalt=="last" then
+   return alternatives[1],trace_alternatives and formatters["invalid value %s, taking %a"](value,n)
+  else
+   return false,trace_alternatives and formatters["invalid value %a, %s"](value,"out of range")
+  end
+ elseif value==0 then
+  return getchar(start),trace_alternatives and formatters["invalid value %a, %s"](value,"no change")
+ elseif value<1 then
+  return alternatives[1],trace_alternatives and formatters["invalid value %a, taking %a"](value,1)
+ else
+  return alternatives[value],trace_alternatives and formatters["value %a, taking %a"](value,value)
+ end
+end
+function handlers.gsub_single(head,start,dataset,sequence,replacement)
+ if trace_singles then
+  logprocess("%s: replacing %s by single %s",pref(dataset,sequence),gref(getchar(start)),gref(replacement))
+ end
+ resetinjection(start)
+ setchar(start,replacement)
+ return head,start,true
+end
+function handlers.gsub_alternate(head,start,dataset,sequence,alternative)
+ local kind=dataset[4]
+ local what=dataset[1]
+ local value=what==true and tfmdata.shared.features[kind] or what
+ local choice,comment=get_alternative_glyph(start,alternative,value)
+ if choice then
+  if trace_alternatives then
+   logprocess("%s: replacing %s by alternative %a to %s, %s",pref(dataset,sequence),gref(getchar(start)),gref(choice),comment)
+  end
+  resetinjection(start)
+  setchar(start,choice)
+ else
+  if trace_alternatives then
+   logwarning("%s: no variant %a for %s, %s",pref(dataset,sequence),value,gref(getchar(start)),comment)
+  end
+ end
+ return head,start,true
+end
+function handlers.gsub_multiple(head,start,dataset,sequence,multiple,rlmode,skiphash)
+ if trace_multiples then
+  logprocess("%s: replacing %s by multiple %s",pref(dataset,sequence),gref(getchar(start)),gref(multiple))
+ end
+ return multiple_glyphs(head,start,multiple,skiphash,dataset[1])
+end
+function handlers.gsub_ligature(head,start,dataset,sequence,ligature,rlmode,skiphash)
+ local current=getnext(start)
+ if not current then
+  return head,start,false,nil
+ end
+ local stop=nil
+ local startchar=getchar(start)
+ if skiphash and skiphash[startchar] then
+  while current do
+   local char=ischar(current,currentfont)
+   if char then
+    local lg=ligature[char]
+    if lg then
+     stop=current
+     ligature=lg
+     current=getnext(current)
+    else
+     break
+    end
+   else
+    break
+   end
+  end
+  if stop then
+   local lig=ligature.ligature
+   if lig then
+    if trace_ligatures then
+     local stopchar=getchar(stop)
+     head,start=markstoligature(head,start,stop,lig)
+     logprocess("%s: replacing %s upto %s by ligature %s case 1",pref(dataset,sequence),gref(startchar),gref(stopchar),gref(getchar(start)))
+    else
+     head,start=markstoligature(head,start,stop,lig)
+    end
+    return head,start,true,false
+   else
+   end
+  end
+ else
+  local discfound=false
+  local hasmarks=marks[startchar]
+  while current do
+   local char,id=ischar(current,currentfont)
+   if char then
+    if skiphash and skiphash[char] then
+     current=getnext(current)
+    else
+     local lg=ligature[char]
+     if lg then
+      if marks[char] then
+       hasmarks=true
+      end
+      stop=current 
+      ligature=lg
+      current=getnext(current)
+     else
+      break
+     end
+    end
+   elseif char==false then
+    break
+   elseif id==disc_code then
+    discfound=current
+    break
+   else
+    break
+   end
+  end
+  if discfound then
+   local pre,post,replace=getdisc(discfound)
+   local match
+   if replace then
+    local char=ischar(replace,currentfont)
+    if char and ligature[char] then
+     match=true
+    end
+   end
+   if not match and pre then
+    local char=ischar(pre,currentfont)
+    if char and ligature[char] then
+     match=true
+    end
+   end
+   if not match and not pre or not replace then
+    local n=getnext(discfound)
+    local char=ischar(n,currentfont)
+    if char and ligature[char] then
+     match=true
+    end
+   end
+   if match then
+    local ishead=head==start
+    local prev=getprev(start)
+    if stop then
+     setnext(stop)
+     local copy=copy_node_list(start)
+     local tail=stop 
+     local liat=find_node_tail(copy)
+     if pre then
+      setlink(liat,pre)
+     end
+     if replace then
+      setlink(tail,replace)
+     end
+     pre=copy
+     replace=start
+    else
+     setnext(start)
+     local copy=copy_node(start)
+     if pre then
+      setlink(copy,pre)
+     end
+     if replace then
+      setlink(start,replace)
+     end
+     pre=copy
+     replace=start
+    end
+    setdisc(discfound,pre,post,replace)
+    if prev then
+     setlink(prev,discfound)
+    else
+     setprev(discfound)
+     head=discfound
+    end
+    start=discfound
+    return head,start,true,true
+   end
+  end
+  local lig=ligature.ligature
+  if lig then
+   if stop then
+    if trace_ligatures then
+     local stopchar=getchar(stop)
+     head,start=toligature(head,start,stop,lig,dataset,sequence,skiphash,false,hasmarks)
+     logprocess("%s: replacing %s upto %s by ligature %s case 2",pref(dataset,sequence),gref(startchar),gref(stopchar),gref(lig))
+    else
+     head,start=toligature(head,start,stop,lig,dataset,sequence,skiphash,false,hasmarks)
+    end
+   else
+    resetinjection(start)
+    setchar(start,lig)
+    if trace_ligatures then
+     logprocess("%s: replacing %s by (no real) ligature %s case 3",pref(dataset,sequence),gref(startchar),gref(lig))
+    end
+   end
+   return head,start,true,false
+  else
+  end
+ end
+ return head,start,false,false
+end
+function handlers.gpos_single(head,start,dataset,sequence,kerns,rlmode,skiphash,step,injection)
+ local startchar=getchar(start)
+ local format=step.format
+ if format=="single" or type(kerns)=="table" then 
+  local dx,dy,w,h=setposition(0,start,factor,rlmode,kerns,injection)
+  if trace_kerns then
+   logprocess("%s: shifting single %s by %s xy (%p,%p) and wh (%p,%p)",pref(dataset,sequence),gref(startchar),format,dx,dy,w,h)
+  end
+ else
+  local k=(format=="move" and setmove or setkern)(start,factor,rlmode,kerns,injection)
+  if trace_kerns then
+   logprocess("%s: shifting single %s by %s %p",pref(dataset,sequence),gref(startchar),format,k)
+  end
+ end
+ return head,start,true
+end
+function handlers.gpos_pair(head,start,dataset,sequence,kerns,rlmode,skiphash,step,injection)
+ local snext=getnext(start)
+ if not snext then
+  return head,start,false
+ else
+  local prev=start
+  while snext do
+   local nextchar=ischar(snext,currentfont)
+   if nextchar then
+    if skiphash and skiphash[nextchar] then 
+     prev=snext
+     snext=getnext(snext)
+    else
+     local krn=kerns[nextchar]
+     if not krn then
+      break
+     end
+     local format=step.format
+     if format=="pair" then
+      local a=krn[1]
+      local b=krn[2]
+      if a==true then
+      elseif a then 
+       local x,y,w,h=setposition(1,start,factor,rlmode,a,injection)
+       if trace_kerns then
+        local startchar=getchar(start)
+        logprocess("%s: shifting first of pair %s and %s by xy (%p,%p) and wh (%p,%p) as %s",pref(dataset,sequence),gref(startchar),gref(nextchar),x,y,w,h,injection or "injections")
+       end
+      end
+      if b==true then
+       start=snext 
+      elseif b then 
+       local x,y,w,h=setposition(2,snext,factor,rlmode,b,injection)
+       if trace_kerns then
+        local startchar=getchar(start)
+        logprocess("%s: shifting second of pair %s and %s by xy (%p,%p) and wh (%p,%p) as %s",pref(dataset,sequence),gref(startchar),gref(nextchar),x,y,w,h,injection or "injections")
+       end
+       start=snext 
+      elseif forcepairadvance then
+       start=snext 
+      end
+      return head,start,true
+     elseif krn~=0 then
+      local k=(format=="move" and setmove or setkern)(snext,factor,rlmode,krn,injection)
+      if trace_kerns then
+       logprocess("%s: inserting %s %p between %s and %s as %s",pref(dataset,sequence),format,k,gref(getchar(prev)),gref(nextchar),injection or "injections")
+      end
+      return head,start,true
+     else 
+      break
+     end
+    end
+   else
+    break
+   end
+  end
+  return head,start,false
+ end
+end
+function handlers.gpos_mark2base(head,start,dataset,sequence,markanchors,rlmode,skiphash)
+ local markchar=getchar(start)
+ if marks[markchar] then
+  local base=getprev(start) 
+  if base then
+   local basechar=ischar(base,currentfont)
+   if basechar then
+    if marks[basechar] then
+     while base do
+      base=getprev(base)
+      if base then
+       basechar=ischar(base,currentfont)
+       if basechar then
+        if not marks[basechar] then
+         break
+        end
+       else
+        if trace_bugs then
+         logwarning("%s: no base for mark %s, case %i",pref(dataset,sequence),gref(markchar),1)
+        end
+        return head,start,false
+       end
+      else
+       if trace_bugs then
+        logwarning("%s: no base for mark %s, case %i",pref(dataset,sequence),gref(markchar),2)
+       end
+       return head,start,false
+      end
+     end
+    end
+    local ba=markanchors[1][basechar]
+    if ba then
+     local ma=markanchors[2]
+     local dx,dy,bound=setmark(start,base,factor,rlmode,ba,ma,characters[basechar],false,checkmarks)
+     if trace_marks then
+      logprocess("%s, bound %s, anchoring mark %s to basechar %s => (%p,%p)",
+       pref(dataset,sequence),bound,gref(markchar),gref(basechar),dx,dy)
+     end
+     return head,start,true
+    elseif trace_bugs then
+     logwarning("%s: mark %s is not anchored to %s",pref(dataset,sequence),gref(markchar),gref(basechar))
+    end
+   elseif trace_bugs then
+    logwarning("%s: nothing preceding, case %i",pref(dataset,sequence),1)
+   end
+  elseif trace_bugs then
+   logwarning("%s: nothing preceding, case %i",pref(dataset,sequence),2)
+  end
+ elseif trace_bugs then
+  logwarning("%s: mark %s is no mark",pref(dataset,sequence),gref(markchar))
+ end
+ return head,start,false
+end
+function handlers.gpos_mark2ligature(head,start,dataset,sequence,markanchors,rlmode,skiphash)
+ local markchar=getchar(start)
+ if marks[markchar] then
+  local base=getprev(start) 
+  if base then
+   local basechar=ischar(base,currentfont)
+   if basechar then
+    if marks[basechar] then
+     while base do
+      base=getprev(base)
+      if base then
+       basechar=ischar(base,currentfont)
+       if basechar then
+        if not marks[basechar] then
+         break
+        end
+       else
+        if trace_bugs then
+         logwarning("%s: no base for mark %s, case %i",pref(dataset,sequence),gref(markchar),1)
+        end
+        return head,start,false
+       end
+      else
+       if trace_bugs then
+        logwarning("%s: no base for mark %s, case %i",pref(dataset,sequence),gref(markchar),2)
+       end
+       return head,start,false
+      end
+     end
+    end
+    local ba=markanchors[1][basechar]
+    if ba then
+     local ma=markanchors[2]
+     if ma then
+      local index=getligaindex(start)
+      ba=ba[index]
+      if ba then
+       local dx,dy,bound=setmark(start,base,factor,rlmode,ba,ma,characters[basechar],false,checkmarks)
+       if trace_marks then
+        logprocess("%s, index %s, bound %s, anchoring mark %s to baselig %s at index %s => (%p,%p)",
+         pref(dataset,sequence),index,bound,gref(markchar),gref(basechar),index,dx,dy)
+       end
+       return head,start,true
+      else
+       if trace_bugs then
+        logwarning("%s: no matching anchors for mark %s and baselig %s with index %a",pref(dataset,sequence),gref(markchar),gref(basechar),index)
+       end
+      end
+     end
+    elseif trace_bugs then
+     onetimemessage(currentfont,basechar,"no base anchors",report_fonts)
+    end
+   elseif trace_bugs then
+    logwarning("%s: prev node is no char, case %i",pref(dataset,sequence),1)
+   end
+  elseif trace_bugs then
+   logwarning("%s: prev node is no char, case %i",pref(dataset,sequence),2)
+  end
+ elseif trace_bugs then
+  logwarning("%s: mark %s is no mark",pref(dataset,sequence),gref(markchar))
+ end
+ return head,start,false
+end
+function handlers.gpos_mark2mark(head,start,dataset,sequence,markanchors,rlmode,skiphash)
+ local markchar=getchar(start)
+ if marks[markchar] then
+  local base=getprev(start) 
+  local slc=getligaindex(start)
+  if slc then 
+   while base do
+    local blc=getligaindex(base)
+    if blc and blc~=slc then
+     base=getprev(base)
+    else
+     break
+    end
+   end
+  end
+  if base then
+   local basechar=ischar(base,currentfont)
+   if basechar then 
+    local ba=markanchors[1][basechar] 
+    if ba then
+     local ma=markanchors[2]
+     local dx,dy,bound=setmark(start,base,factor,rlmode,ba,ma,characters[basechar],true,checkmarks)
+     if trace_marks then
+      logprocess("%s, bound %s, anchoring mark %s to basemark %s => (%p,%p)",
+       pref(dataset,sequence),bound,gref(markchar),gref(basechar),dx,dy)
+     end
+     return head,start,true
+    end
+   end
+  end
+ elseif trace_bugs then
+  logwarning("%s: mark %s is no mark",pref(dataset,sequence),gref(markchar))
+ end
+ return head,start,false
+end
+function handlers.gpos_cursive(head,start,dataset,sequence,exitanchors,rlmode,skiphash,step) 
+ local startchar=getchar(start)
+ if marks[startchar] then
+  if trace_cursive then
+   logprocess("%s: ignoring cursive for mark %s",pref(dataset,sequence),gref(startchar))
+  end
+ else
+  local nxt=getnext(start)
+  while nxt do
+   local nextchar=ischar(nxt,currentfont)
+   if not nextchar then
+    break
+   elseif marks[nextchar] then 
+    nxt=getnext(nxt)
+   else
+    local exit=exitanchors[3]
+    if exit then
+     local entry=exitanchors[1][nextchar]
+     if entry then
+      entry=entry[2]
+      if entry then
+       local r2lflag=sequence.flags[4] 
+       local dx,dy,bound=setcursive(start,nxt,factor,rlmode,exit,entry,characters[startchar],characters[nextchar],r2lflag)
+       if trace_cursive then
+        logprocess("%s: moving %s to %s cursive (%p,%p) using bound %s in %s mode",pref(dataset,sequence),gref(startchar),gref(nextchar),dx,dy,bound,mref(rlmode))
+       end
+       return head,start,true
+      end
+     end
+    end
+    break
+   end
+  end
+ end
+ return head,start,false
+end
+local chainprocs={}
+local function logprocess(...)
+ if trace_steps then
+  registermessage(...)
+  if trace_steps=="silent" then
+   return
+  end
+ end
+ report_subchain(...)
+end
+local logwarning=report_subchain
+local function logprocess(...)
+ if trace_steps then
+  registermessage(...)
+  if trace_steps=="silent" then
+   return
+  end
+ end
+ report_chain(...)
+end
+local logwarning=report_chain
+local function reversesub(head,start,stop,dataset,sequence,replacements,rlmode,skiphash)
+ local char=getchar(start)
+ local replacement=replacements[char]
+ if replacement then
+  if trace_singles then
+   logprocess("%s: single reverse replacement of %s by %s",cref(dataset,sequence),gref(char),gref(replacement))
+  end
+  resetinjection(start)
+  setchar(start,replacement)
+  return head,start,true
+ else
+  return head,start,false
+ end
+end
+chainprocs.reversesub=reversesub
+local function reportzerosteps(dataset,sequence)
+ logwarning("%s: no steps",cref(dataset,sequence))
+end
+local function reportmoresteps(dataset,sequence)
+ logwarning("%s: more than 1 step",cref(dataset,sequence))
+end
+local function getmapping(dataset,sequence,currentlookup)
+ local steps=currentlookup.steps
+ local nofsteps=currentlookup.nofsteps
+ if nofsteps==0 then
+  reportzerosteps(dataset,sequence)
+  currentlookup.mapping=false
+  return false
+ else
+  if nofsteps>1 then
+   reportmoresteps(dataset,sequence)
+  end
+  local mapping=steps[1].coverage
+  currentlookup.mapping=mapping
+  currentlookup.format=steps[1].format
+  return mapping
+ end
+end
+function chainprocs.gsub_remove(head,start,stop,dataset,sequence,currentlookup,rlmode,skiphash,chainindex)
+ if trace_chains then
+  logprocess("%s: removing character %s",cref(dataset,sequence,chainindex),gref(getchar(start)))
+ end
+ head,start=remove_node(head,start,true)
+ return head,getprev(start),true
+end
+function chainprocs.gsub_single(head,start,stop,dataset,sequence,currentlookup,rlmode,skiphash,chainindex)
+ local mapping=currentlookup.mapping
+ if mapping==nil then
+  mapping=getmapping(dataset,sequence,currentlookup)
+ end
+ if mapping then
+  local current=start
+  while current do
+   local currentchar=ischar(current)
+   if currentchar then
+    local replacement=mapping[currentchar]
+    if not replacement or replacement=="" then
+     if trace_bugs then
+      logwarning("%s: no single for %s",cref(dataset,sequence,chainindex),gref(currentchar))
+     end
+    else
+     if trace_singles then
+      logprocess("%s: replacing single %s by %s",cref(dataset,sequence,chainindex),gref(currentchar),gref(replacement))
+     end
+     resetinjection(current)
+     setchar(current,replacement)
+    end
+    return head,start,true
+   elseif currentchar==false then
+    break
+   elseif current==stop then
+    break
+   else
+    current=getnext(current)
+   end
+  end
+ end
+ return head,start,false
+end
+function chainprocs.gsub_alternate(head,start,stop,dataset,sequence,currentlookup,rlmode,skiphash,chainindex)
+ local mapping=currentlookup.mapping
+ if mapping==nil then
+  mapping=getmapping(dataset,sequence,currentlookup)
+ end
+ if mapping then
+  local kind=dataset[4]
+  local what=dataset[1]
+  local value=what==true and tfmdata.shared.features[kind] or what 
+  local current=start
+  while current do
+   local currentchar=ischar(current)
+   if currentchar then
+    local alternatives=mapping[currentchar]
+    if alternatives then
+     local choice,comment=get_alternative_glyph(current,alternatives,value)
+     if choice then
+      if trace_alternatives then
+       logprocess("%s: replacing %s by alternative %a to %s, %s",cref(dataset,sequence),gref(currentchar),choice,gref(choice),comment)
+      end
+      resetinjection(start)
+      setchar(start,choice)
+     else
+      if trace_alternatives then
+       logwarning("%s: no variant %a for %s, %s",cref(dataset,sequence),value,gref(currentchar),comment)
+      end
+     end
+    end
+    return head,start,true
+   elseif currentchar==false then
+    break
+   elseif current==stop then
+    break
+   else
+    current=getnext(current)
+   end
+  end
+ end
+ return head,start,false
+end
+function chainprocs.gsub_multiple(head,start,stop,dataset,sequence,currentlookup,rlmode,skiphash,chainindex)
+ local mapping=currentlookup.mapping
+ if mapping==nil then
+  mapping=getmapping(dataset,sequence,currentlookup)
+ end
+ if mapping then
+  local startchar=getchar(start)
+  local replacement=mapping[startchar]
+  if not replacement or replacement=="" then
+   if trace_bugs then
+    logwarning("%s: no multiple for %s",cref(dataset,sequence),gref(startchar))
+   end
+  else
+   if trace_multiples then
+    logprocess("%s: replacing %s by multiple characters %s",cref(dataset,sequence),gref(startchar),gref(replacement))
+   end
+   return multiple_glyphs(head,start,replacement,skiphash,dataset[1],stop)
+  end
+ end
+ return head,start,false
+end
+function chainprocs.gsub_ligature(head,start,stop,dataset,sequence,currentlookup,rlmode,skiphash,chainindex)
+ local mapping=currentlookup.mapping
+ if mapping==nil then
+  mapping=getmapping(dataset,sequence,currentlookup)
+ end
+ if mapping then
+  local startchar=getchar(start)
+  local ligatures=mapping[startchar]
+  if not ligatures then
+   if trace_bugs then
+    logwarning("%s: no ligatures starting with %s",cref(dataset,sequence,chainindex),gref(startchar))
+   end
+  else
+   local hasmarks=marks[startchar]
+   local current=getnext(start)
+   local discfound=false
+   local last=stop
+   local nofreplacements=1
+   while current do
+    local id=getid(current)
+    if id==disc_code then
+     if not discfound then
+      discfound=current
+     end
+     if current==stop then
+      break 
+     else
+      current=getnext(current)
+     end
+    else
+     local schar=getchar(current)
+     if skiphash and skiphash[schar] then
+       current=getnext(current)
+     else
+      local lg=ligatures[schar]
+      if lg then
+       ligatures=lg
+       last=current
+       nofreplacements=nofreplacements+1
+       if marks[char] then
+        hasmarks=true
+       end
+       if current==stop then
+        break
+       else
+        current=getnext(current)
+       end
+      else
+       break
+      end
+     end
+    end
+   end
+   local ligature=ligatures.ligature
+   if ligature then
+    if chainindex then
+     stop=last
+    end
+    if trace_ligatures then
+     if start==stop then
+      logprocess("%s: replacing character %s by ligature %s case 3",cref(dataset,sequence,chainindex),gref(startchar),gref(ligature))
+     else
+      logprocess("%s: replacing character %s upto %s by ligature %s case 4",cref(dataset,sequence,chainindex),gref(startchar),gref(getchar(stop)),gref(ligature))
+     end
+    end
+    head,start=toligature(head,start,stop,ligature,dataset,sequence,skiphash,discfound,hasmarks)
+    return head,start,true,nofreplacements,discfound
+   elseif trace_bugs then
+    if start==stop then
+     logwarning("%s: replacing character %s by ligature fails",cref(dataset,sequence,chainindex),gref(startchar))
+    else
+     logwarning("%s: replacing character %s upto %s by ligature fails",cref(dataset,sequence,chainindex),gref(startchar),gref(getchar(stop)))
+    end
+   end
+  end
+ end
+ return head,start,false,0,false
+end
+function chainprocs.gpos_single(head,start,stop,dataset,sequence,currentlookup,rlmode,skiphash,chainindex)
+ local mapping=currentlookup.mapping
+ if mapping==nil then
+  mapping=getmapping(dataset,sequence,currentlookup)
+ end
+ if mapping then
+  local startchar=getchar(start)
+  local kerns=mapping[startchar]
+  if kerns then
+   local format=currentlookup.format
+   if format=="single" then
+    local dx,dy,w,h=setposition(0,start,factor,rlmode,kerns) 
+    if trace_kerns then
+     logprocess("%s: shifting single %s by %s (%p,%p) and correction (%p,%p)",cref(dataset,sequence),gref(startchar),format,dx,dy,w,h)
+    end
+   else 
+    local k=(format=="move" and setmove or setkern)(start,factor,rlmode,kerns,injection)
+    if trace_kerns then
+     logprocess("%s: shifting single %s by %s %p",cref(dataset,sequence),gref(startchar),format,k)
+    end
+   end
+   return head,start,true
+  end
+ end
+ return head,start,false
+end
+function chainprocs.gpos_pair(head,start,stop,dataset,sequence,currentlookup,rlmode,skiphash,chainindex) 
+ local mapping=currentlookup.mapping
+ if mapping==nil then
+  mapping=getmapping(dataset,sequence,currentlookup)
+ end
+ if mapping then
+  local snext=getnext(start)
+  if snext then
+   local startchar=getchar(start)
+   local kerns=mapping[startchar] 
+   if kerns then
+    local prev=start
+    while snext do
+     local nextchar=ischar(snext,currentfont)
+     if not nextchar then
+      break
+     end
+     if skiphash and skiphash[nextchar] then
+      prev=snext
+      snext=getnext(snext)
+     else
+      local krn=kerns[nextchar]
+      if not krn then
+       break
+      end
+      local format=currentlookup.format
+      if format=="pair" then
+       local a=krn[1]
+       local b=krn[2]
+       if a==true then
+       elseif a then
+        local x,y,w,h=setposition(1,start,factor,rlmode,a,"injections") 
+        if trace_kerns then
+         local startchar=getchar(start)
+         logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(dataset,sequence),gref(startchar),gref(nextchar),x,y,w,h)
+        end
+       end
+       if b==true then
+        start=snext 
+       elseif b then 
+        local x,y,w,h=setposition(2,snext,factor,rlmode,b,"injections")
+        if trace_kerns then
+         local startchar=getchar(start)
+         logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(dataset,sequence),gref(startchar),gref(nextchar),x,y,w,h)
+        end
+        start=snext 
+       elseif forcepairadvance then
+        start=snext 
+       end
+       return head,start,true
+      elseif krn~=0 then
+       local k=(format=="move" and setmove or setkern)(snext,factor,rlmode,krn)
+       if trace_kerns then
+        logprocess("%s: inserting %s %p between %s and %s",cref(dataset,sequence),format,k,gref(getchar(prev)),gref(nextchar))
+       end
+       return head,start,true
+      else
+       break
+      end
+     end
+    end
+   end
+  end
+ end
+ return head,start,false
+end
+function chainprocs.gpos_mark2base(head,start,stop,dataset,sequence,currentlookup,rlmode,skiphash,chainindex)
+ local mapping=currentlookup.mapping
+ if mapping==nil then
+  mapping=getmapping(dataset,sequence,currentlookup)
+ end
+ if mapping then
+  local markchar=getchar(start)
+  if marks[markchar] then
+   local markanchors=mapping[markchar] 
+   if markanchors then
+    local base=getprev(start) 
+    if base then
+     local basechar=ischar(base,currentfont)
+     if basechar then
+      if marks[basechar] then
+       while base do
+        base=getprev(base)
+        if base then
+         local basechar=ischar(base,currentfont)
+         if basechar then
+          if not marks[basechar] then
+           break
+          end
+         else
+          if trace_bugs then
+           logwarning("%s: no base for mark %s, case %i",pref(dataset,sequence),gref(markchar),1)
+          end
+          return head,start,false
+         end
+        else
+         if trace_bugs then
+          logwarning("%s: no base for mark %s, case %i",pref(dataset,sequence),gref(markchar),2)
+         end
+         return head,start,false
+        end
+       end
+      end
+      local ba=markanchors[1][basechar]
+      if ba then
+       local ma=markanchors[2]
+       if ma then
+        local dx,dy,bound=setmark(start,base,factor,rlmode,ba,ma,characters[basechar],false,checkmarks)
+        if trace_marks then
+         logprocess("%s, bound %s, anchoring mark %s to basechar %s => (%p,%p)",
+          cref(dataset,sequence),bound,gref(markchar),gref(basechar),dx,dy)
+        end
+        return head,start,true
+       end
+      end
+     elseif trace_bugs then
+      logwarning("%s: prev node is no char, case %i",cref(dataset,sequence),1)
+     end
+    elseif trace_bugs then
+     logwarning("%s: prev node is no char, case %i",cref(dataset,sequence),2)
+    end
+   elseif trace_bugs then
+    logwarning("%s: mark %s has no anchors",cref(dataset,sequence),gref(markchar))
+   end
+  elseif trace_bugs then
+   logwarning("%s: mark %s is no mark",cref(dataset,sequence),gref(markchar))
+  end
+ end
+ return head,start,false
+end
+function chainprocs.gpos_mark2ligature(head,start,stop,dataset,sequence,currentlookup,rlmode,skiphash,chainindex)
+ local mapping=currentlookup.mapping
+ if mapping==nil then
+  mapping=getmapping(dataset,sequence,currentlookup)
+ end
+ if mapping then
+  local markchar=getchar(start)
+  if marks[markchar] then
+   local markanchors=mapping[markchar] 
+   if markanchors then
+    local base=getprev(start) 
+    if base then
+     local basechar=ischar(base,currentfont)
+     if basechar then
+      if marks[basechar] then
+       while base do
+        base=getprev(base)
+        if base then
+         local basechar=ischar(base,currentfont)
+         if basechar then
+          if not marks[basechar] then
+           break
+          end
+         else
+          if trace_bugs then
+           logwarning("%s: no base for mark %s, case %i",cref(dataset,sequence),markchar,1)
+          end
+          return head,start,false
+         end
+        else
+         if trace_bugs then
+          logwarning("%s: no base for mark %s, case %i",cref(dataset,sequence),markchar,2)
+         end
+         return head,start,false
+        end
+       end
+      end
+      local ba=markanchors[1][basechar]
+      if ba then
+       local ma=markanchors[2]
+       if ma then
+        local index=getligaindex(start)
+        ba=ba[index]
+        if ba then
+         local dx,dy,bound=setmark(start,base,factor,rlmode,ba,ma,characters[basechar],false,checkmarks)
+         if trace_marks then
+          logprocess("%s, bound %s, anchoring mark %s to baselig %s at index %s => (%p,%p)",
+           cref(dataset,sequence),a or bound,gref(markchar),gref(basechar),index,dx,dy)
+         end
+         return head,start,true
+        end
+       end
+      end
+     elseif trace_bugs then
+      logwarning("%s, prev node is no char, case %i",cref(dataset,sequence),1)
+     end
+    elseif trace_bugs then
+     logwarning("%s, prev node is no char, case %i",cref(dataset,sequence),2)
+    end
+   elseif trace_bugs then
+    logwarning("%s, mark %s has no anchors",cref(dataset,sequence),gref(markchar))
+   end
+  elseif trace_bugs then
+   logwarning("%s, mark %s is no mark",cref(dataset,sequence),gref(markchar))
+  end
+ end
+ return head,start,false
+end
+function chainprocs.gpos_mark2mark(head,start,stop,dataset,sequence,currentlookup,rlmode,skiphash,chainindex)
+ local mapping=currentlookup.mapping
+ if mapping==nil then
+  mapping=getmapping(dataset,sequence,currentlookup)
+ end
+ if mapping then
+  local markchar=getchar(start)
+  if marks[markchar] then
+   local markanchors=mapping[markchar] 
+   if markanchors then
+    local base=getprev(start) 
+    local slc=getligaindex(start)
+    if slc then 
+     while base do
+      local blc=getligaindex(base)
+      if blc and blc~=slc then
+       base=getprev(base)
+      else
+       break
+      end
+     end
+    end
+    if base then 
+     local basechar=ischar(base,currentfont)
+     if basechar then
+      local ba=markanchors[1][basechar]
+      if ba then
+       local ma=markanchors[2]
+       if ma then
+        local dx,dy,bound=setmark(start,base,factor,rlmode,ba,ma,characters[basechar],true,checkmarks)
+        if trace_marks then
+         logprocess("%s, bound %s, anchoring mark %s to basemark %s => (%p,%p)",
+          cref(dataset,sequence),bound,gref(markchar),gref(basechar),dx,dy)
+        end
+        return head,start,true
+       end
+      end
+     elseif trace_bugs then
+      logwarning("%s: prev node is no mark, case %i",cref(dataset,sequence),1)
+     end
+    elseif trace_bugs then
+     logwarning("%s: prev node is no mark, case %i",cref(dataset,sequence),2)
+    end
+   elseif trace_bugs then
+    logwarning("%s: mark %s has no anchors",cref(dataset,sequence),gref(markchar))
+   end
+  elseif trace_bugs then
+   logwarning("%s: mark %s is no mark",cref(dataset,sequence),gref(markchar))
+  end
+ end
+ return head,start,false
+end
+function chainprocs.gpos_cursive(head,start,stop,dataset,sequence,currentlookup,rlmode,skiphash,chainindex)
+ local mapping=currentlookup.mapping
+ if mapping==nil then
+  mapping=getmapping(dataset,sequence,currentlookup)
+ end
+ if mapping then
+  local startchar=getchar(start)
+  local exitanchors=mapping[startchar] 
+  if exitanchors then
+   if marks[startchar] then
+    if trace_cursive then
+     logprocess("%s: ignoring cursive for mark %s",pref(dataset,sequence),gref(startchar))
+    end
+   else
+    local nxt=getnext(start)
+    while nxt do
+     local nextchar=ischar(nxt,currentfont)
+     if not nextchar then
+      break
+     elseif marks[nextchar] then
+      nxt=getnext(nxt)
+     else
+      local exit=exitanchors[3]
+      if exit then
+       local entry=exitanchors[1][nextchar]
+       if entry then
+        entry=entry[2]
+        if entry then
+         local r2lflag=sequence.flags[4] 
+         local dx,dy,bound=setcursive(start,nxt,factor,rlmode,exit,entry,characters[startchar],characters[nextchar],r2lflag)
+         if trace_cursive then
+          logprocess("%s: moving %s to %s cursive (%p,%p) using bound %s in %s mode",pref(dataset,sequence),gref(startchar),gref(nextchar),dx,dy,bound,mref(rlmode))
+         end
+         return head,start,true
+        end
+       end
+      elseif trace_bugs then
+       onetimemessage(currentfont,startchar,"no entry anchors",report_fonts)
+      end
+      break
+     end
+    end
+   end
+  elseif trace_cursive and trace_details then
+   logprocess("%s, cursive %s is already done",pref(dataset,sequence),gref(getchar(start)),alreadydone)
+  end
+ end
+ return head,start,false
+end
+local function show_skip(dataset,sequence,char,ck,class)
+ logwarning("%s: skipping char %s, class %a, rule %a, lookuptype %a",cref(dataset,sequence),gref(char),class,ck[1],ck[8] or ck[2])
+end
+local userkern=nuts.pool and nuts.pool.newkern 
+do if not userkern then 
+ local thekern=nuts.new("kern",1) 
+ local setkern=nuts.setkern    
+ userkern=function(k)
+  local n=copy_node(thekern)
+  setkern(n,k)
+  return n
+ end
+end end
+local function checked(head)
+ local current=head
+ while current do
+  if getid(current)==glue_code then
+   local kern=userkern(getwidth(current))
+   if head==current then
+    local next=getnext(current)
+    if next then
+     setlink(kern,next)
+    end
+    flush_node(current)
+    head=kern
+    current=next
+   else
+    local prev,next=getboth(current)
+    setlink(prev,kern,next)
+    flush_node(current)
+    current=next
+   end
+  else
+   current=getnext(current)
+  end
+ end
+ return head
+end
+local function setdiscchecked(d,pre,post,replace)
+ if pre  then pre=checked(pre)  end
+ if post then post=checked(post) end
+ if replace then replace=checked(replace) end
+ setdisc(d,pre,post,replace)
+end
+local noflags={ false,false,false,false }
+local function chainrun(head,start,last,dataset,sequence,rlmode,skiphash,ck)
+ local size=ck[5]-ck[4]+1
+ local chainlookups=ck[6]
+ local done=false
+ if chainlookups then
+  if size==1 then
+   local chainlookup=chainlookups[1]
+   for j=1,#chainlookup do
+    local chainstep=chainlookup[j]
+    local chainkind=chainstep.type
+    local chainproc=chainprocs[chainkind]
+    if chainproc then
+     local ok
+     head,start,ok=chainproc(head,start,last,dataset,sequence,chainstep,rlmode,skiphash)
+     if ok then
+      done=true
+     end
+    else
+     logprocess("%s: %s is not yet supported (1)",cref(dataset,sequence),chainkind)
+    end
+   end
+   else
+   local i=1
+   local laststart=start
+   local nofchainlookups=#chainlookups 
+   while start do
+    if skiphash then 
+     while start do
+      local char=ischar(start,currentfont)
+      if char then
+       if skiphash and skiphash[char] then
+        start=getnext(start)
+       else
+        break
+       end
+      else
+       break
+      end
+     end
+    end
+    local chainlookup=chainlookups[i]
+    if chainlookup then
+     for j=1,#chainlookup do
+      local chainstep=chainlookup[j]
+      local chainkind=chainstep.type
+      local chainproc=chainprocs[chainkind]
+      if chainproc then
+       local ok,n
+       head,start,ok,n=chainproc(head,start,last,dataset,sequence,chainstep,rlmode,skiphash,i)
+       if ok then
+        done=true
+        if n and n>1 and i+n>nofchainlookups then
+         i=size 
+         break
+        end
+       end
+      else
+       logprocess("%s: %s is not yet supported (2)",cref(dataset,sequence),chainkind)
+      end
+     end
+    else
+    end
+    i=i+1
+    if i>size or not start then
+     break
+    elseif start then
+     laststart=start
+     start=getnext(start)
+    end
+   end
+   if not start then
+    start=laststart
+   end
+  end
+ else
+  local replacements=ck[7]
+  if replacements then
+   head,start,done=reversesub(head,start,last,dataset,sequence,replacements,rlmode,skiphash)
+  else
+   done=true
+   if trace_contexts then
+    logprocess("%s: skipping match",cref(dataset,sequence))
+   end
+  end
+ end
+ return head,start,done
+end
+local function chaindisk(head,start,dataset,sequence,rlmode,skiphash,ck)
+ if not start then
+  return head,start,false
+ end
+ local startishead=start==head
+ local seq=ck[3]
+ local f=ck[4]
+ local l=ck[5]
+ local s=#seq
+ local done=false
+ local sweepnode=sweepnode
+ local sweeptype=sweeptype
+ local sweepoverflow=false
+ local keepdisc=not sweepnode
+ local lookaheaddisc=nil
+ local backtrackdisc=nil
+ local current=start
+ local last=start
+ local prev=getprev(start)
+ local hasglue=false
+ local i=f
+ while i<=l do
+  local id=getid(current)
+  if id==glyph_code then
+   i=i+1
+   last=current
+   current=getnext(current)
+  elseif id==glue_code then
+   i=i+1
+   last=current
+   current=getnext(current)
+   hasglue=true
+  elseif id==disc_code then
+   if keepdisc then
+    keepdisc=false
+    lookaheaddisc=current
+    local replace=getfield(current,"replace")
+    if not replace then
+     sweepoverflow=true
+     sweepnode=current
+     current=getnext(current)
+    else
+     while replace and i<=l do
+      if getid(replace)==glyph_code then
+       i=i+1
+      end
+      replace=getnext(replace)
+     end
+     current=getnext(replace)
+    end
+    last=current
+   else
+    head,current=flattendisk(head,current)
+   end
+  else
+   last=current
+   current=getnext(current)
+  end
+  if current then
+  elseif sweepoverflow then
+   break
+  elseif sweeptype=="post" or sweeptype=="replace" then
+   current=getnext(sweepnode)
+   if current then
+    sweeptype=nil
+    sweepoverflow=true
+   else
+    break
+   end
+  else
+   break 
+  end
+ end
+ if sweepoverflow then
+  local prev=current and getprev(current)
+  if not current or prev~=sweepnode then
+   local head=getnext(sweepnode)
+   local tail=nil
+   if prev then
+    tail=prev
+    setprev(current,sweepnode)
+   else
+    tail=find_node_tail(head)
+   end
+   setnext(sweepnode,current)
+   setprev(head)
+   setnext(tail)
+   appenddisc(sweepnode,head)
+  end
+ end
+ if l<s then
+  local i=l
+  local t=sweeptype=="post" or sweeptype=="replace"
+  while current and i<s do
+   local id=getid(current)
+   if id==glyph_code then
+    i=i+1
+    current=getnext(current)
+   elseif id==glue_code then
+    i=i+1
+    current=getnext(current)
+    hasglue=true
+   elseif id==disc_code then
+    if keepdisc then
+     keepdisc=false
+     if notmatchpre[current]~=notmatchreplace[current] then
+      lookaheaddisc=current
+     end
+     local replace=getfield(current,"replace")
+     while replace and i<s do
+      if getid(replace)==glyph_code then
+       i=i+1
+      end
+      replace=getnext(replace)
+     end
+     current=getnext(current)
+    elseif notmatchpre[current]~=notmatchreplace[current] then
+     head,current=flattendisk(head,current)
+    else
+     current=getnext(current) 
+    end
+   else
+    current=getnext(current)
+   end
+   if not current and t then
+    current=getnext(sweepnode)
+    if current then
+     sweeptype=nil
+    end
+   end
+  end
+ end
+ if f>1 then
+  local current=prev
+  local i=f
+  local t=sweeptype=="pre" or sweeptype=="replace"
+  if not current and t and current==checkdisk then
+   current=getprev(sweepnode)
+  end
+  while current and i>1 do 
+   local id=getid(current)
+   if id==glyph_code then
+    i=i-1
+   elseif id==glue_code then
+    i=i-1
+    hasglue=true
+   elseif id==disc_code then
+    if keepdisc then
+     keepdisc=false
+     if notmatchpost[current]~=notmatchreplace[current] then
+      backtrackdisc=current
+     end
+     local replace=getfield(current,"replace")
+     while replace and i>1 do
+      if getid(replace)==glyph_code then
+       i=i-1
+      end
+      replace=getnext(replace)
+     end
+    elseif notmatchpost[current]~=notmatchreplace[current] then
+     head,current=flattendisk(head,current)
+    end
+   end
+   current=getprev(current)
+   if t and current==checkdisk then
+    current=getprev(sweepnode)
+   end
+  end
+ end
+ local done=false
+ if lookaheaddisc then
+  local cf=start
+  local cl=getprev(lookaheaddisc)
+  local cprev=getprev(start)
+  local insertedmarks=0
+  while cprev do
+   local char=ischar(cf,currentfont)
+   if char and marks[char] then
+    insertedmarks=insertedmarks+1
+    cf=cprev
+    startishead=cf==head
+    cprev=getprev(cprev)
+   else
+    break
+   end
+  end
+  setlink(cprev,lookaheaddisc)
+  setprev(cf)
+  setnext(cl)
+  if startishead then
+   head=lookaheaddisc
+  end
+  local pre,post,replace=getdisc(lookaheaddisc)
+  local new=copy_node_list(cf) 
+  local cnew=new
+  if pre then
+   setlink(find_node_tail(cf),pre)
+  end
+  if replace then
+   local tail=find_node_tail(new)
+   setlink(tail,replace)
+  end
+  for i=1,insertedmarks do
+   cnew=getnext(cnew)
+  end
+  cl=start
+  local clast=cnew
+  for i=f,l do
+   cl=getnext(cl)
+   clast=getnext(clast)
+  end
+  if not notmatchpre[lookaheaddisc] then
+   local ok=false
+   cf,start,ok=chainrun(cf,start,cl,dataset,sequence,rlmode,skiphash,ck)
+   if ok then
+    done=true
+   end
+  end
+  if not notmatchreplace[lookaheaddisc] then
+   local ok=false
+   new,cnew,ok=chainrun(new,cnew,clast,dataset,sequence,rlmode,skiphash,ck)
+   if ok then
+    done=true
+   end
+  end
+  if hasglue then
+   setdiscchecked(lookaheaddisc,cf,post,new)
+  else
+   setdisc(lookaheaddisc,cf,post,new)
+  end
+  start=getprev(lookaheaddisc)
+  sweephead[cf]=getnext(clast) or false
+  sweephead[new]=getnext(cl) or false
+ elseif backtrackdisc then
+  local cf=getnext(backtrackdisc)
+  local cl=start
+  local cnext=getnext(start)
+  local insertedmarks=0
+  while cnext do
+   local char=ischar(cnext,currentfont)
+   if char and marks[char] then
+    insertedmarks=insertedmarks+1
+    cl=cnext
+    cnext=getnext(cnext)
+   else
+    break
+   end
+  end
+  setlink(backtrackdisc,cnext)
+  setprev(cf)
+  setnext(cl)
+  local pre,post,replace,pretail,posttail,replacetail=getdisc(backtrackdisc,true)
+  local new=copy_node_list(cf)
+  local cnew=find_node_tail(new)
+  for i=1,insertedmarks do
+   cnew=getprev(cnew)
+  end
+  local clast=cnew
+  for i=f,l do
+   clast=getnext(clast)
+  end
+  if not notmatchpost[backtrackdisc] then
+   local ok=false
+   cf,start,ok=chainrun(cf,start,last,dataset,sequence,rlmode,skiphash,ck)
+   if ok then
+    done=true
+   end
+  end
+  if not notmatchreplace[backtrackdisc] then
+   local ok=false
+   new,cnew,ok=chainrun(new,cnew,clast,dataset,sequence,rlmode,skiphash,ck)
+   if ok then
+    done=true
+   end
+  end
+  if post then
+   setlink(posttail,cf)
+  else
+   post=cf
+  end
+  if replace then
+   setlink(replacetail,new)
+  else
+   replace=new
+  end
+  if hasglue then
+   setdiscchecked(backtrackdisc,pre,post,replace)
+  else
+   setdisc(backtrackdisc,pre,post,replace)
+  end
+  start=getprev(backtrackdisc)
+  sweephead[post]=getnext(clast) or false
+  sweephead[replace]=getnext(last) or false
+ else
+  local ok=false
+  head,start,ok=chainrun(head,start,last,dataset,sequence,rlmode,skiphash,ck)
+  if ok then
+   done=true
+  end
+ end
+ return head,start,done
+end
+local function chaintrac(head,start,dataset,sequence,rlmode,skiphash,ck,match,discseen,sweepnode)
+ local rule=ck[1]
+ local lookuptype=ck[8] or ck[2]
+ local nofseq=#ck[3]
+ local first=ck[4]
+ local last=ck[5]
+ local char=getchar(start)
+ logwarning("%s: rule %s %s at char %s for (%s,%s,%s) chars, lookuptype %a, %sdisc seen, %ssweeping",
+  cref(dataset,sequence),rule,match and "matches" or "nomatch",
+  gref(char),first-1,last-first+1,nofseq-last,lookuptype,
+  discseen and "" or "no ",sweepnode and "" or "not ")
+end
+local function handle_contextchain(head,start,dataset,sequence,contexts,rlmode,skiphash)
+ local sweepnode=sweepnode
+ local sweeptype=sweeptype
+ local postreplace
+ local prereplace
+ local checkdisc
+ local discseen  
+ if sweeptype then
+  if sweeptype=="replace" then
+   postreplace=true
+   prereplace=true
+  else
+   postreplace=sweeptype=="post"
+   prereplace=sweeptype=="pre"
+  end
+  checkdisc=getprev(head)
+ end
+ local currentfont=currentfont
+ local skipped   
+ local startprev,
+    startnext=getboth(start)
+ local done
+ local nofcontexts=contexts.n 
+ local startchar=nofcontext==1 or ischar(start,currentfont) 
+ for k=1,nofcontexts do 
+  local ck=contexts[k]
+  local seq=ck[3]
+  local f=ck[4] 
+  if not startchar or not seq[f][startchar] then
+   goto next
+  end
+  local s=seq.n 
+  local l=ck[5] 
+  local current=start
+  local last=start
+  if l>f then
+   local discfound 
+   local n=f+1
+   last=startnext 
+   while n<=l do
+    if postreplace and not last then
+     last=getnext(sweepnode)
+     sweeptype=nil
+    end
+    if last then
+     local char,id=ischar(last,currentfont)
+     if char then
+      if skiphash and skiphash[char] then
+       skipped=true
+       if trace_skips then
+        show_skip(dataset,sequence,char,ck,classes[char])
+       end
+       last=getnext(last)
+      elseif seq[n][char] then
+       if n<l then
+        last=getnext(last)
+       end
+       n=n+1
+      elseif discfound then
+       notmatchreplace[discfound]=true
+       if notmatchpre[discfound] then
+        goto next
+       else
+        break
+       end
+      else
+       goto next
+      end
+     elseif char==false then
+      if discfound then
+       notmatchreplace[discfound]=true
+       if notmatchpre[discfound] then
+        goto next
+       else
+        break
+       end
+      else
+       goto next
+      end
+     elseif id==disc_code then
+      discseen=true
+      discfound=last
+      notmatchpre[last]=nil
+      notmatchpost[last]=true
+      notmatchreplace[last]=nil
+      local pre,post,replace=getdisc(last)
+      if pre then
+       local n=n
+       while pre do
+        if seq[n][getchar(pre)] then
+         n=n+1
+         if n>l then
+          break
+         end
+         pre=getnext(pre)
+        else
+         notmatchpre[last]=true
+         break
+        end
+       end
+      else
+       notmatchpre[last]=true
+      end
+      if replace then
+       while replace do
+        if seq[n][getchar(replace)] then
+         n=n+1
+         if n>l then
+          break
+         end
+         replace=getnext(replace)
+        else
+         notmatchreplace[last]=true
+         if notmatchpre[last] then
+          goto next
+         else
+          break
+         end
+        end
+       end
+       if notmatchpre[last] then
+        goto next
+       end
+      end
+      last=getnext(last)
+     else
+      goto next
+     end
+    else
+     goto next
+    end
+   end
+  end
+  if f>1 then
+   if startprev then
+    local prev=startprev
+    if prereplace and prev==checkdisc then
+     prev=getprev(sweepnode)
+    end
+    if prev then
+     local discfound 
+     local n=f-1
+     while n>=1 do
+      if prev then
+       local char,id=ischar(prev,currentfont)
+       if char then
+        if skiphash and skiphash[char] then
+         skipped=true
+         if trace_skips then
+          show_skip(dataset,sequence,char,ck,classes[char])
+         end
+         prev=getprev(prev)
+        elseif seq[n][char] then
+         if n>1 then
+          prev=getprev(prev)
+         end
+         n=n-1
+        elseif discfound then
+         notmatchreplace[discfound]=true
+         if notmatchpost[discfound] then
+          goto next
+         else
+          break
+         end
+        else
+         goto next
+        end
+       elseif char==false then
+        if discfound then
+         notmatchreplace[discfound]=true
+         if notmatchpost[discfound] then
+          goto next
+         end
+        else
+         goto next
+        end
+        break
+       elseif id==disc_code then
+        discseen=true
+        discfound=prev
+        notmatchpre[prev]=true
+        notmatchpost[prev]=nil
+        notmatchreplace[prev]=nil
+        local pre,post,replace,pretail,posttail,replacetail=getdisc(prev,true)
+        if pre~=start and post~=start and replace~=start then
+         if post then
+          local n=n
+          while posttail do
+           if seq[n][getchar(posttail)] then
+            n=n-1
+            if posttail==post or n<1 then
+             break
+            else
+             posttail=getprev(posttail)
+            end
+           else
+            notmatchpost[prev]=true
+            break
+           end
+          end
+          if n>=1 then
+           notmatchpost[prev]=true
+          end
+         else
+          notmatchpost[prev]=true
+         end
+         if replace then
+          while replacetail do
+           if seq[n][getchar(replacetail)] then
+            n=n-1
+            if replacetail==replace or n<1 then
+             break
+            else
+             replacetail=getprev(replacetail)
+            end
+           else
+            notmatchreplace[prev]=true
+            if notmatchpost[prev] then
+             goto next
+            else
+             break
+            end
+           end
+          end
+         else
+         end
+        end
+        prev=getprev(prev)
+       elseif id==glue_code then
+        local sn=seq[n]
+        if (sn[32] and spaces[prev]) or sn[0xFFFC] then
+         n=n-1
+         prev=getprev(prev)
+        else
+         goto next
+        end
+       elseif seq[n][0xFFFC] then
+        n=n-1
+        prev=getprev(prev)
+       else
+        goto next
+       end
+      else
+       goto next
+      end
+     end
+    else
+     goto next
+    end
+   else
+    goto next
+   end
+  end
+  if s>l then
+   local current=last and getnext(last)
+   if not current and postreplace then
+    current=getnext(sweepnode)
+   end
+   if current then
+    local discfound 
+    local n=l+1
+    while n<=s do
+     if current then
+      local char,id=ischar(current,currentfont)
+      if char then
+       if skiphash and skiphash[char] then
+        skipped=true
+        if trace_skips then
+         show_skip(dataset,sequence,char,ck,classes[char])
+        end
+        current=getnext(current) 
+       elseif seq[n][char] then
+        if n<s then 
+         current=getnext(current) 
+        end
+        n=n+1
+       elseif discfound then
+        notmatchreplace[discfound]=true
+        if notmatchpre[discfound] then
+         goto next
+        else
+         break
+        end
+       else
+        goto next
+       end
+      elseif char==false then
+       if discfound then
+        notmatchreplace[discfound]=true
+        if notmatchpre[discfound] then
+         goto next
+        else
+         break
+        end
+       else
+        goto next
+       end
+      elseif id==disc_code then
+       discseen=true
+       discfound=current
+       notmatchpre[current]=nil
+       notmatchpost[current]=true
+       notmatchreplace[current]=nil
+       local pre,post,replace=getdisc(current)
+       if pre then
+        local n=n
+        while pre do
+         if seq[n][getchar(pre)] then
+          n=n+1
+          if n>s then
+           break
+          else
+           pre=getnext(pre)
+          end
+         else
+          notmatchpre[current]=true
+          break
+         end
+        end
+        if n<=s then
+         notmatchpre[current]=true
+        end
+       else
+        notmatchpre[current]=true
+       end
+       if replace then
+        while replace do
+         if seq[n][getchar(replace)] then
+          n=n+1
+          if n>s then
+           break
+          else
+           replace=getnext(replace)
+          end
+         else
+          notmatchreplace[current]=true
+          if notmatchpre[current] then
+           goto next
+          else
+           break
+          end
+         end
+        end
+       else
+       end
+       current=getnext(current)
+      elseif id==glue_code then
+       local sn=seq[n]
+       if (sn[32] and spaces[current]) or sn[0xFFFC] then
+        n=n+1
+        current=getnext(current)
+       else
+        goto next
+       end
+      elseif seq[n][0xFFFC] then
+       n=n+1
+       current=getnext(current)
+      else
+       goto next
+      end
+     else
+      goto next
+     end
+    end
+   else
+    goto next
+   end
+  end
+  if trace_contexts then
+   chaintrac(head,start,dataset,sequence,rlmode,skipped and skiphash,ck,true,discseen,sweepnode)
+  end
+  if discseen or sweepnode then
+   head,start,done=chaindisk(head,start,dataset,sequence,rlmode,skipped and skiphash,ck)
+  else
+   head,start,done=chainrun(head,start,last,dataset,sequence,rlmode,skipped and skiphash,ck)
+  end
+  if done then
+   break
+  end
+  ::next::
+ end
+ if discseen then
+  notmatchpre={}
+  notmatchpost={}
+  notmatchreplace={}
+ end
+ return head,start,done
+end
+handlers.gsub_context=handle_contextchain
+handlers.gsub_contextchain=handle_contextchain
+handlers.gsub_reversecontextchain=handle_contextchain
+handlers.gpos_contextchain=handle_contextchain
+handlers.gpos_context=handle_contextchain
+local function chained_contextchain(head,start,stop,dataset,sequence,currentlookup,rlmode,skiphash)
+ local steps=currentlookup.steps
+ local nofsteps=currentlookup.nofsteps
+ if nofsteps>1 then
+  reportmoresteps(dataset,sequence)
+ end
+ local l=steps[1].coverage[getchar(start)]
+ if l then
+  return handle_contextchain(head,start,dataset,sequence,l,rlmode,skiphash)
+ else
+  return head,start,false
+ end
+end
+chainprocs.gsub_context=chained_contextchain
+chainprocs.gsub_contextchain=chained_contextchain
+chainprocs.gsub_reversecontextchain=chained_contextchain
+chainprocs.gpos_contextchain=chained_contextchain
+chainprocs.gpos_context=chained_contextchain
+local missing=setmetatableindex("table")
+local logwarning=report_process
+local resolved={} 
+local function logprocess(...)
+ if trace_steps then
+  registermessage(...)
+  if trace_steps=="silent" then
+   return
+  end
+ end
+ report_process(...)
+end
+local sequencelists=setmetatableindex(function(t,font)
+ local sequences=fontdata[font].resources.sequences
+ if not sequences or not next(sequences) then
+  sequences=false
+ end
+ t[font]=sequences
+ return sequences
+end)
+do 
+ local autofeatures=fonts.analyzers.features
+ local featuretypes=otf.tables.featuretypes
+ local defaultscript=otf.features.checkeddefaultscript
+ local defaultlanguage=otf.features.checkeddefaultlanguage
+ local wildcard="*"
+ local default="dflt"
+ local function initialize(sequence,script,language,enabled,autoscript,autolanguage)
+  local features=sequence.features
+  if features then
+   local order=sequence.order
+   if order then
+    local featuretype=featuretypes[sequence.type or "unknown"]
+    for i=1,#order do
+     local kind=order[i]
+     local valid=enabled[kind]
+     if valid then
+      local scripts=features[kind]
+      local languages=scripts and (
+       scripts[script] or
+       scripts[wildcard] or
+       (autoscript and defaultscript(featuretype,autoscript,scripts))
+      )
+      local enabled=languages and (
+       languages[language] or
+       languages[wildcard] or
+       (autolanguage and defaultlanguage(featuretype,autolanguage,languages))
+      )
+      if enabled then
+       return { valid,autofeatures[kind] or false,sequence,kind }
+      end
+     end
+    end
+   else
+   end
+  end
+  return false
+ end
+ function otf.dataset(tfmdata,font) 
+  local shared=tfmdata.shared
+  local properties=tfmdata.properties
+  local language=properties.language or "dflt"
+  local script=properties.script   or "dflt"
+  local enabled=shared.features
+  local autoscript=enabled and enabled.autoscript
+  local autolanguage=enabled and enabled.autolanguage
+  local res=resolved[font]
+  if not res then
+   res={}
+   resolved[font]=res
+  end
+  local rs=res[script]
+  if not rs then
+   rs={}
+   res[script]=rs
+  end
+  local rl=rs[language]
+  if not rl then
+   rl={
+   }
+   rs[language]=rl
+   local sequences=tfmdata.resources.sequences
+   if sequences then
+    for s=1,#sequences do
+     local v=enabled and initialize(sequences[s],script,language,enabled,autoscript,autolanguage)
+     if v then
+      rl[#rl+1]=v
+     end
+    end
+   end
+  end
+  return rl
+ end
+end
+local function report_disc(what,n)
+ report_run("%s: %s > %s",what,n,languages.serializediscretionary(n))
+end
+local function kernrun(disc,k_run,font,attr,...)
+ if trace_kernruns then
+  report_disc("kern",disc)
+ end
+ local prev,next=getboth(disc)
+ local nextstart=next
+ local done=false
+ local pre,post,replace,pretail,posttail,replacetail=getdisc(disc,true)
+ local prevmarks=prev
+ while prevmarks do
+  local char=ischar(prevmarks,font)
+  if char and marks[char] then
+   prevmarks=getprev(prevmarks)
+  else
+   break
+  end
+ end
+ if prev and not ischar(prev,font) then  
+  prev=false
+ end
+ if next and not ischar(next,font) then  
+  next=false
+ end
+ if pre then
+  if k_run(pre,"injections",nil,font,attr,...) then
+   done=true
+  end
+  if prev then
+   setlink(prev,pre)
+   if k_run(prevmarks,"preinjections",pre,font,attr,...) then 
+    done=true
+   end
+   setprev(pre)
+   setlink(prev,disc)
+  end
+ end
+ if post then
+  if k_run(post,"injections",nil,font,attr,...) then
+   done=true
+  end
+  if next then
+   setlink(posttail,next)
+   if k_run(posttail,"postinjections",next,font,attr,...) then
+    done=true
+   end
+   setnext(posttail)
+   setlink(disc,next)
+  end
+ end
+ if replace then
+  if k_run(replace,"injections",nil,font,attr,...) then
+   done=true
+  end
+  if prev then
+   setlink(prev,replace)
+   if k_run(prevmarks,"replaceinjections",replace,font,attr,...) then 
+    done=true
+   end
+   setprev(replace)
+   setlink(prev,disc)
+  end
+  if next then
+   setlink(replacetail,next)
+   if k_run(replacetail,"replaceinjections",next,font,attr,...) then
+    done=true
+   end
+   setnext(replacetail)
+   setlink(disc,next)
+  end
+ elseif prev and next then
+  setlink(prev,next)
+  if k_run(prevmarks,"emptyinjections",next,font,attr,...) then
+   done=true
+  end
+  setlink(prev,disc,next)
+ end
+ if done and trace_testruns then
+  report_disc("done",disc)
+ end
+ return nextstart,done
+end
+local function comprun(disc,c_run,...) 
+ if trace_compruns then
+  report_disc("comp",disc)
+ end
+ local pre,post,replace=getdisc(disc)
+ local renewed=false
+ if pre then
+  sweepnode=disc
+  sweeptype="pre" 
+  local new,done=c_run(pre,...)
+  if done then
+   pre=new
+   renewed=true
+  end
+ end
+ if post then
+  sweepnode=disc
+  sweeptype="post"
+  local new,done=c_run(post,...)
+  if done then
+   post=new
+   renewed=true
+  end
+ end
+ if replace then
+  sweepnode=disc
+  sweeptype="replace"
+  local new,done=c_run(replace,...)
+  if done then
+   replace=new
+   renewed=true
+  end
+ end
+ sweepnode=nil
+ sweeptype=nil
+ if renewed then
+  if trace_testruns then
+   report_disc("done",disc)
+  end
+  setdisc(disc,pre,post,replace)
+ end
+ return getnext(disc),renewed
+end
+local function testrun(disc,t_run,c_run,...)
+ if trace_testruns then
+  report_disc("test",disc)
+ end
+ local prev,next=getboth(disc)
+ if not next then
+  return
+ end
+ local pre,post,replace,pretail,posttail,replacetail=getdisc(disc,true)
+ local renewed=false
+ if (post or replace) then 
+  if post then
+   setlink(posttail,next)
+  else
+   post=next
+  end
+  if replace then
+   setlink(replacetail,next)
+  else
+   replace=next
+  end
+  local d_post=t_run(post,next,...)
+  local d_replace=t_run(replace,next,...)
+  if d_post>0 or d_replace>0 then
+   local d=d_replace>d_post and d_replace or d_post
+   local head=getnext(disc) 
+   local tail=head
+   for i=2,d do 
+    local nx=getnext(tail)
+    local id=getid(nx)
+    if id==disc_code then
+     head,tail=flattendisk(head,nx)
+    elseif id==glyph_code then
+     tail=nx
+    else
+     break
+    end
+   end
+   next=getnext(tail)
+   setnext(tail)
+   setprev(head)
+   local new=copy_node_list(head)
+   if posttail then
+    setlink(posttail,head)
+   else
+    post=head
+   end
+   if replacetail then
+    setlink(replacetail,new)
+   else
+    replace=new
+   end
+  else
+   if posttail then
+    setnext(posttail)
+   else
+    post=nil
+   end
+   if replacetail then
+    setnext(replacetail)
+   else
+    replace=nil
+   end
+  end
+  setlink(disc,next)
+ end
+ if trace_testruns then
+  report_disc("more",disc)
+ end
+ if pre then
+  sweepnode=disc
+  sweeptype="pre"
+  local new,ok=c_run(pre,...)
+  if ok then
+   pre=new
+   renewed=true
+  end
+ end
+ if post then
+  sweepnode=disc
+  sweeptype="post"
+  local new,ok=c_run(post,...)
+  if ok then
+   post=new
+   renewed=true
+  end
+ end
+ if replace then
+  sweepnode=disc
+  sweeptype="replace"
+  local new,ok=c_run(replace,...)
+  if ok then
+   replace=new
+   renewed=true
+  end
+ end
+ sweepnode=nil
+ sweeptype=nil
+ if renewed then
+  setdisc(disc,pre,post,replace)
+  if trace_testruns then
+   report_disc("done",disc)
+  end
+ end
+ return getnext(disc),renewed
+end
+local nesting=0
+local function c_run_single(head,font,attr,lookupcache,step,dataset,sequence,rlmode,skiphash,handler)
+ local done=false
+ local sweep=sweephead[head]
+ if sweep then
+  start=sweep
+  sweephead[head]=false
+ else
+  start=head
+ end
+ while start do
+  local char,id=ischar(start,font)
+  if char then
+   local a 
+   if attr then
+    a=getglyphdata(start)
+   end
+   if not a or (a==attr) then
+    local lookupmatch=lookupcache[char]
+    if lookupmatch then
+     local ok
+     head,start,ok=handler(head,start,dataset,sequence,lookupmatch,rlmode,skiphash,step)
+     if ok then
+      done=true
+     end
+    end
+    if start then
+     start=getnext(start)
+    end
+   else
+    start=getnext(start)
+   end
+  elseif char==false then
+   return head,done
+  elseif sweep then
+   return head,done
+  else
+   start=getnext(start)
+  end
+ end
+ return head,done
+end
+local function t_run_single(start,stop,font,attr,lookupcache)
+ local lastd=nil
+ while start~=stop do
+  local char=ischar(start,font)
+  if char then
+   local a 
+   if attr then
+    a=getglyphdata(start)
+   end
+   local startnext=getnext(start)
+   if not a or (a==attr) then
+    local lookupmatch=lookupcache[char]
+    if lookupmatch then
+     local s=startnext
+     local ss=nil
+     local sstop=s==stop
+     if not s then
+      s=ss
+      ss=nil
+     end
+     while getid(s)==disc_code do
+      ss=getnext(s)
+      s=getfield(s,"replace")
+      if not s then
+       s=ss
+       ss=nil
+      end
+     end
+     local l=nil
+     local d=0
+     while s do
+      local char=ischar(s,font)
+      if char then
+       local lg=lookupmatch[char]
+       if lg then
+        if sstop then
+         d=1
+        elseif d>0 then
+         d=d+1
+        end
+        l=lg
+        s=getnext(s)
+        sstop=s==stop
+        if not s then
+         s=ss
+         ss=nil
+        end
+        while getid(s)==disc_code do
+         ss=getnext(s)
+         s=getfield(s,"replace")
+         if not s then
+          s=ss
+          ss=nil
+         end
+        end
+lookupmatch=lg
+       else
+        break
+       end
+      else
+       break
+      end
+     end
+     if l and l.ligature then 
+      lastd=d
+     end
+    else
+    end
+   else
+   end
+   if lastd then
+    return lastd
+   end
+   start=startnext
+  else
+   break
+  end
+ end
+ return 0
+end
+local function k_run_single(sub,injection,last,font,attr,lookupcache,step,dataset,sequence,rlmode,skiphash,handler)
+ local a 
+ if attr then
+  a=getglyphdata(sub)
+ end
+ if not a or (a==attr) then
+  for n in nextnode,sub do 
+   if n==last then
+    break
+   end
+   local char=ischar(n)
+   if char then
+    local lookupmatch=lookupcache[char]
+    if lookupmatch then
+     local h,d,ok=handler(sub,n,dataset,sequence,lookupmatch,rlmode,skiphash,step,injection)
+     if ok then
+      return true
+     end
+    end
+   end
+  end
+ end
+end
+local function c_run_multiple(head,font,attr,steps,nofsteps,dataset,sequence,rlmode,skiphash,handler)
+ local done=false
+ local sweep=sweephead[head]
+ if sweep then
+  start=sweep
+  sweephead[head]=false
+ else
+  start=head
+ end
+ while start do
+  local char=ischar(start,font)
+  if char then
+   local a 
+   if attr then
+    a=getglyphdata(start)
+   end
+   if not a or (a==attr) then
+    for i=1,nofsteps do
+     local step=steps[i]
+     local lookupcache=step.coverage
+     local lookupmatch=lookupcache[char]
+     if lookupmatch then
+      local ok
+      head,start,ok=handler(head,start,dataset,sequence,lookupmatch,rlmode,skiphash,step)
+      if ok then
+       done=true
+       break
+      elseif not start then
+       break
+      end
+     end
+    end
+    if start then
+     start=getnext(start)
+    end
+   else
+    start=getnext(start)
+   end
+  elseif char==false then
+   return head,done
+  elseif sweep then
+   return head,done
+  else
+   start=getnext(start)
+  end
+ end
+ return head,done
+end
+local function t_run_multiple(start,stop,font,attr,steps,nofsteps)
+ local lastd=nil
+ while start~=stop do
+  local char=ischar(start,font)
+  if char then
+   local a 
+   if attr then
+    a=getglyphdata(start)
+   end
+   local startnext=getnext(start)
+   if not a or (a==attr) then
+    for i=1,nofsteps do
+     local step=steps[i]
+     local lookupcache=step.coverage
+     local lookupmatch=lookupcache[char]
+     if lookupmatch then
+      local s=startnext
+      local ss=nil
+      local sstop=s==stop
+      if not s then
+       s=ss
+       ss=nil
+      end
+      while getid(s)==disc_code do
+       ss=getnext(s)
+       s=getfield(s,"replace")
+       if not s then
+        s=ss
+        ss=nil
+       end
+      end
+      local l=nil
+      local d=0
+      while s do
+       local char=ischar(s)
+       if char then
+        local lg=lookupmatch[char]
+        if lg then
+         if sstop then
+          d=1
+         elseif d>0 then
+          d=d+1
+         end
+         l=lg
+         s=getnext(s)
+         sstop=s==stop
+         if not s then
+          s=ss
+          ss=nil
+         end
+         while getid(s)==disc_code do
+          ss=getnext(s)
+          s=getfield(s,"replace")
+          if not s then
+           s=ss
+           ss=nil
+          end
+         end
+lookupmatch=lg
+        else
+         break
+        end
+       else
+        break
+       end
+      end
+      if l and l.ligature then
+       lastd=d
+      end
+     end
+    end
+   else
+   end
+   if lastd then
+    return lastd
+   end
+   start=startnext
+  else
+   break
+  end
+ end
+ return 0
+end
+local function k_run_multiple(sub,injection,last,font,attr,steps,nofsteps,dataset,sequence,rlmode,skiphash,handler)
+ local a 
+ if attr then
+  a=getglyphdata(sub)
+ end
+ if not a or (a==attr) then
+  for n in nextnode,sub do 
+   if n==last then
+    break
+   end
+   local char=ischar(n)
+   if char then
+    for i=1,nofsteps do
+     local step=steps[i]
+     local lookupcache=step.coverage
+     local lookupmatch=lookupcache[char]
+     if lookupmatch then
+      local h,d,ok=handler(sub,n,dataset,sequence,lookupmatch,rlmode,skiphash,step,injection) 
+      if ok then
+       return true
+      end
+     end
+    end
+   end
+  end
+ end
+end
+local txtdirstate,pardirstate  do 
+ local getdirection=nuts.getdirection
+ local lefttoright=0
+ local righttoleft=1
+ txtdirstate=function(start,stack,top,rlparmode)
+  local dir,pop=getdirection(start)
+  if pop then
+   if top==1 then
+    return 0,rlparmode
+   else
+    top=top-1
+    if stack[top]==righttoleft then
+     return top,-1
+    else
+     return top,1
+    end
+   end
+  elseif dir==lefttoright then
+   top=top+1
+   stack[top]=lefttoright
+   return top,1
+  elseif dir==righttoleft then
+   top=top+1
+   stack[top]=righttoleft
+   return top,-1
+  else
+   return top,rlparmode
+  end
+ end
+ pardirstate=function(start)
+  local dir=getdirection(start)
+  if dir==lefttoright then
+   return 1,1
+  elseif dir==righttoleft then
+   return -1,-1
+  elseif dir=="TLT" then
+   return 1,1
+  elseif dir=="TRT" then
+   return -1,-1
+  else
+   return 0,0
+  end
+ end
+end
+otf.helpers=otf.helpers or {}
+otf.helpers.txtdirstate=txtdirstate
+otf.helpers.pardirstate=pardirstate
+do
+ local fastdisc=true
+ local testdics=false
+ directives.register("otf.fastdisc",function(v) fastdisc=v end)
+ local otfdataset=nil 
+ local getfastdisc={ __index=function(t,k)
+  local v=usesfont(k,currentfont)
+  t[k]=v
+  return v
+ end }
+ local getfastspace={ __index=function(t,k)
+  local v=isspace(k,threshold) or false
+  t[k]=v
+  return v
+ end }
+ function otf.featuresprocessor(head,font,attr,direction,n)
+  local sequences=sequencelists[font] 
+  nesting=nesting+1
+  if nesting==1 then
+   currentfont=font
+   tfmdata=fontdata[font]
+   descriptions=tfmdata.descriptions 
+   characters=tfmdata.characters   
+   local resources=tfmdata.resources
+   marks=resources.marks
+   classes=resources.classes
+   threshold,
+   factor=getthreshold(font)
+   checkmarks=tfmdata.properties.checkmarks
+   if not otfdataset then
+    otfdataset=otf.dataset
+   end
+   discs=fastdisc and n and n>1 and setmetatable({},getfastdisc) 
+   spaces=setmetatable({},getfastspace)
+  elseif currentfont~=font then
+   report_warning("nested call with a different font, level %s, quitting",nesting)
+   nesting=nesting-1
+   return head,false
+  end
+  if trace_steps then
+   checkstep(head)
+  end
+  local initialrl=0
+  if getid(head)==localpar_code and getsubtype(head)==0 then
+   initialrl=pardirstate(head)
+  elseif direction==1 or direction=="TRT" then
+   initialrl=-1
+  end
+  local datasets=otfdataset(tfmdata,font,attr)
+  local dirstack={ nil } 
+  sweephead={}
+  for s=1,#datasets do
+   local dataset=datasets[s]
+   local attribute=dataset[2]
+   local sequence=dataset[3] 
+   local rlparmode=initialrl
+   local topstack=0
+   local typ=sequence.type
+   local gpossing=typ=="gpos_single" or typ=="gpos_pair" 
+   local forcetestrun=typ=="gsub_ligature" 
+   local handler=handlers[typ] 
+   local steps=sequence.steps
+   local nofsteps=sequence.nofsteps
+   local skiphash=sequence.skiphash
+   if not steps then
+    local h,ok=handler(head,dataset,sequence,initialrl,font,attr)
+    if h and h~=head then
+     head=h
+    end
+   elseif typ=="gsub_reversecontextchain" then
+    local start=find_node_tail(head)
+    local rlmode=0 
+    local merged=steps.merged
+    while start do
+     local char=ischar(start,font)
+     if char then
+      local m=merged[char]
+      if m then
+       local a 
+       if attr then
+        a=getglyphdata(start)
+       end
+       if not a or (a==attr) then
+        for i=m[1],m[2] do
+         local step=steps[i]
+         local lookupcache=step.coverage
+         local lookupmatch=lookupcache[char]
+         if lookupmatch then
+          local ok
+          head,start,ok=handler(head,start,dataset,sequence,lookupmatch,rlmode,skiphash,step)
+          if ok then
+           break
+          end
+         end
+        end
+        if start then
+         start=getprev(start)
+        end
+       else
+        start=getprev(start)
+       end
+      else
+       start=getprev(start)
+      end
+     else
+      start=getprev(start)
+     end
+    end
+   else
+    local start=head
+    local rlmode=initialrl
+    if nofsteps==1 then 
+     local step=steps[1]
+     local lookupcache=step.coverage
+     while start do
+      local char,id=ischar(start,font)
+      if char then
+       if skiphash and skiphash[char] then 
+        start=getnext(start)
+       else
+        local lookupmatch=lookupcache[char]
+        if lookupmatch then
+         local a 
+         if attr then
+          if getglyphdata(start)==attr and (not attribute or getprop(start,a_state)==attribute) then
+           a=true
+          end
+         elseif not attribute or getprop(start,a_state)==attribute then
+          a=true
+         end
+         if a then
+          local ok,df
+          head,start,ok,df=handler(head,start,dataset,sequence,lookupmatch,rlmode,skiphash,step)
+          if df then
+          elseif start then
+           start=getnext(start)
+          end
+         else
+          start=getnext(start)
+         end
+        else
+           start=getnext(start)
+        end
+       end
+      elseif char==false or id==glue_code then
+       start=getnext(start)
+      elseif id==disc_code then
+       if not discs or discs[start]==true then
+        local ok
+        if gpossing then
+         start,ok=kernrun(start,k_run_single,font,attr,lookupcache,step,dataset,sequence,rlmode,skiphash,handler)
+        elseif forcetestrun then
+         start,ok=testrun(start,t_run_single,c_run_single,font,attr,lookupcache,step,dataset,sequence,rlmode,skiphash,handler)
+        else
+         start,ok=comprun(start,c_run_single,font,attr,lookupcache,step,dataset,sequence,rlmode,skiphash,handler)
+        end
+       else
+        start=getnext(start)
+       end
+      elseif id==math_code then
+       start=getnext(end_of_math(start))
+      elseif id==dir_code then
+       topstack,rlmode=txtdirstate(start,dirstack,topstack,rlparmode)
+       start=getnext(start)
+      else
+       start=getnext(start)
+      end
+     end
+    else
+     local merged=steps.merged
+     while start do
+      local char,id=ischar(start,font)
+      if char then
+       if skiphash and skiphash[char] then 
+        start=getnext(start)
+       else
+        local m=merged[char]
+        if m then
+         local a 
+         if attr then
+          if getglyphdata(start)==attr and (not attribute or getprop(start,a_state)==attribute) then
+           a=true
+          end
+         elseif not attribute or getprop(start,a_state)==attribute then
+          a=true
+         end
+         if a then
+          local ok,df
+          for i=m[1],m[2] do
+           local step=steps[i]
+           local lookupcache=step.coverage
+           local lookupmatch=lookupcache[char]
+           if lookupmatch then
+            head,start,ok,df=handler(head,start,dataset,sequence,lookupmatch,rlmode,skiphash,step)
+            if df then
+             break
+            elseif ok then
+             break
+            elseif not start then
+             break
+            end
+           end
+          end
+          if df then
+          elseif start then
+           start=getnext(start)
+          end
+         else
+          start=getnext(start)
+         end
+        else
+         start=getnext(start)
+        end
+       end
+      elseif char==false or id==glue_code then
+       start=getnext(start)
+      elseif id==disc_code then
+       if not discs or discs[start]==true then
+        local ok
+        if gpossing then
+         start,ok=kernrun(start,k_run_multiple,font,attr,steps,nofsteps,dataset,sequence,rlmode,skiphash,handler)
+        elseif forcetestrun then
+         start,ok=testrun(start,t_run_multiple,c_run_multiple,font,attr,steps,nofsteps,dataset,sequence,rlmode,skiphash,handler)
+        else
+         start,ok=comprun(start,c_run_multiple,font,attr,steps,nofsteps,dataset,sequence,rlmode,skiphash,handler)
+        end
+       else
+        start=getnext(start)
+       end
+      elseif id==math_code then
+       start=getnext(end_of_math(start))
+      elseif id==dir_code then
+       topstack,rlmode=txtdirstate(start,dirstack,topstack,rlparmode)
+       start=getnext(start)
+      else
+       start=getnext(start)
+      end
+     end
+    end
+   end
+   if trace_steps then 
+    registerstep(head)
+   end
+  end
+  nesting=nesting-1
+  return head
+ end
+ function otf.datasetpositionprocessor(head,font,direction,dataset)
+  currentfont=font
+  tfmdata=fontdata[font]
+  descriptions=tfmdata.descriptions 
+  characters=tfmdata.characters   
+  local resources=tfmdata.resources
+  marks=resources.marks
+  classes=resources.classes
+  threshold,
+  factor=getthreshold(font)
+  checkmarks=tfmdata.properties.checkmarks
+  if type(dataset)=="number" then
+   dataset=otfdataset(tfmdata,font,0)[dataset]
+  end
+  local sequence=dataset[3] 
+  local typ=sequence.type
+  local handler=handlers[typ] 
+  local steps=sequence.steps
+  local nofsteps=sequence.nofsteps
+  local done=false
+  local dirstack={ nil } 
+  local start=head
+  local initialrl=(direction==1 or direction=="TRT") and -1 or 0
+  local rlmode=initialrl
+  local rlparmode=initialrl
+  local topstack=0
+  local merged=steps.merged
+  local position=0
+  while start do
+   local char,id=ischar(start,font)
+   if char then
+    position=position+1
+    local m=merged[char]
+    if m then
+     if skiphash and skiphash[char] then 
+      start=getnext(start)
+     else
+      for i=m[1],m[2] do
+       local step=steps[i]
+       local lookupcache=step.coverage
+       local lookupmatch=lookupcache[char]
+       if lookupmatch then
+        local ok
+        head,start,ok=handler(head,start,dataset,sequence,lookupmatch,rlmode,skiphash,step)
+        if ok then
+         break
+        elseif not start then
+         break
+        end
+       end
+      end
+      if start then
+       start=getnext(start)
+      end
+     end
+    else
+     start=getnext(start)
+    end
+   elseif char==false or id==glue_code then
+    start=getnext(start)
+   elseif id==math_code then
+    start=getnext(end_of_math(start))
+   elseif id==dir_code then
+    topstack,rlmode=txtdirstate(start,dirstack,topstack,rlparmode)
+    start=getnext(start)
+   else
+    start=getnext(start)
+   end
+  end
+  return head
+ end
+end
+local plugins={}
+otf.plugins=plugins
+local report=logs.reporter("fonts")
+function otf.registerplugin(name,f)
+ if type(name)=="string" and type(f)=="function" then
+  plugins[name]={ name,f }
+  report()
+  report("plugin %a has been loaded, please be aware of possible side effects",name)
+  report()
+  if logs.pushtarget then
+   logs.pushtarget("log")
+  end
+  report("Plugins are not officially supported unless stated otherwise. This is because")
+  report("they bypass the regular font handling and therefore some features in ConTeXt")
+  report("(especially those related to fonts) might not work as expected or might not work")
+  report("at all. Some plugins are for testing and development only and might change")
+  report("whenever we feel the need for it.")
+  report()
+  if logs.poptarget then
+   logs.poptarget()
+  end
+ end
+end
+function otf.plugininitializer(tfmdata,value)
+ if type(value)=="string" then
+  tfmdata.shared.plugin=plugins[value]
+ end
+end
+function otf.pluginprocessor(head,font,attr,direction) 
+ local s=fontdata[font].shared
+ local p=s and s.plugin
+ if p then
+  if trace_plugins then
+   report_process("applying plugin %a",p[1])
+  end
+  return p[2](head,font,attr,direction)
+ else
+  return head,false
+ end
+end
+function otf.featuresinitializer(tfmdata,value)
+end
+registerotffeature {
+ name="features",
+ description="features",
+ default=true,
+ initializers={
+  position=1,
+  node=otf.featuresinitializer,
+  plug=otf.plugininitializer,
+ },
+ processors={
+  node=otf.featuresprocessor,
+  plug=otf.pluginprocessor,
+ }
+}
+otf.handlers=handlers
+local setspacekerns=nodes.injections.setspacekerns if not setspacekerns then os.exit() end
+local tag="kern" 
+if fontfeatures then
+ function handlers.trigger_space_kerns(head,dataset,sequence,initialrl,font,attr)
+  local features=fontfeatures[font]
+  local enabled=features and features.spacekern and features[tag]
+  if enabled then
+   setspacekerns(font,sequence)
+  end
+  return head,enabled
+ end
+else 
+ function handlers.trigger_space_kerns(head,dataset,sequence,initialrl,font,attr)
+  local shared=fontdata[font].shared
+  local features=shared and shared.features
+  local enabled=features and features.spacekern and features[tag]
+  if enabled then
+   setspacekerns(font,sequence)
+  end
+  return head,enabled
+ end
+end
+local function hasspacekerns(data)
+ local resources=data.resources
+ local sequences=resources.sequences
+ local validgpos=resources.features.gpos
+ if validgpos and sequences then
+  for i=1,#sequences do
+   local sequence=sequences[i]
+   local steps=sequence.steps
+   if steps and sequence.features[tag] then
+    local kind=sequence.type
+    if kind=="gpos_pair" or kind=="gpos_single" then
+     for i=1,#steps do
+      local step=steps[i]
+      local coverage=step.coverage
+      local rules=step.rules
+      if rules then
+      elseif not coverage then
+      elseif kind=="gpos_single" then
+      elseif kind=="gpos_pair" then
+       local format=step.format
+       if format=="move" or format=="kern" then
+        local kerns=coverage[32]
+        if kerns then
+         return true
+        end
+        for k,v in next,coverage do
+         if v[32] then
+          return true
+         end
+        end
+       elseif format=="pair" then
+        local kerns=coverage[32]
+        if kerns then
+         for k,v in next,kerns do
+          local one=v[1]
+          if one and one~=true then
+           return true
+          end
+         end
+        end
+        for k,v in next,coverage do
+         local kern=v[32]
+         if kern then
+          local one=kern[1]
+          if one and one~=true then
+           return true
+          end
+         end
+        end
+       end
+      end
+     end
+    end
+   end
+  end
+ end
+ return false
+end
+otf.readers.registerextender {
+ name="spacekerns",
+ action=function(data)
+  data.properties.hasspacekerns=hasspacekerns(data)
+ end
+}
+local function spaceinitializer(tfmdata,value) 
+ local resources=tfmdata.resources
+ local spacekerns=resources and resources.spacekerns
+ if value and spacekerns==nil then
+  local rawdata=tfmdata.shared and tfmdata.shared.rawdata
+  local properties=rawdata.properties
+  if properties and properties.hasspacekerns then
+   local sequences=resources.sequences
+   local validgpos=resources.features.gpos
+   if validgpos and sequences then
+    local left={}
+    local right={}
+    local last=0
+    local feat=nil
+    for i=1,#sequences do
+     local sequence=sequences[i]
+     local steps=sequence.steps
+     if steps then
+      local kern=sequence.features[tag]
+      if kern then
+       local kind=sequence.type
+       if kind=="gpos_pair" or kind=="gpos_single" then
+        if feat then
+         for script,languages in next,kern do
+          local f=feat[script]
+          if f then
+           for l in next,languages do
+            f[l]=true
+           end
+          else
+           feat[script]=languages
+          end
+         end
+        else
+         feat=kern
+        end
+        for i=1,#steps do
+         local step=steps[i]
+         local coverage=step.coverage
+         local rules=step.rules
+         if rules then
+         elseif not coverage then
+         elseif kind=="gpos_single" then
+         elseif kind=="gpos_pair" then
+          local format=step.format
+          if format=="move" or format=="kern" then
+           local kerns=coverage[32]
+           if kerns then
+            for k,v in next,kerns do
+             right[k]=v
+            end
+           end
+           for k,v in next,coverage do
+            local kern=v[32]
+            if kern then
+             left[k]=kern
+            end
+           end
+          elseif format=="pair" then
+           local kerns=coverage[32]
+           if kerns then
+            for k,v in next,kerns do
+             local one=v[1]
+             if one and one~=true then
+              right[k]=one[3]
+             end
+            end
+           end
+           for k,v in next,coverage do
+            local kern=v[32]
+            if kern then
+             local one=kern[1]
+             if one and one~=true then
+              left[k]=one[3]
+             end
+            end
+           end
+          end
+         end
+        end
+        last=i
+       end
+      else
+      end
+     end
+    end
+    left=next(left)  and left  or false
+    right=next(right) and right or false
+    if left or right then
+     spacekerns={
+      left=left,
+      right=right,
+     }
+     if last>0 then
+      local triggersequence={
+       features={ [tag]=feat or { dflt={ dflt=true,} } },
+       flags=noflags,
+       name="trigger_space_kerns",
+       order={ tag },
+       type="trigger_space_kerns",
+       left=left,
+       right=right,
+      }
+      insert(sequences,last,triggersequence)
+     end
+    end
+   end
+  end
+  resources.spacekerns=spacekerns
+ end
+ return spacekerns
+end
+registerotffeature {
+ name="spacekern",
+ description="space kern injection",
+ default=true,
+ initializers={
+  node=spaceinitializer,
+ },
+}
+local function markinitializer(tfmdata,value)
+ local properties=tfmdata.properties
+ properties.checkmarks=value
+end
+registerotffeature {
+ name="checkmarks",
+ description="check mark widths",
+ default=true,
+ initializers={
+  node=markinitializer,
+ },
+}
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-osd']={ 
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Kai Eigner, TAT Zetwerk / Hans Hagen, PRAGMA ADE",
+ copyright="TAT Zetwerk / PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local insert,imerge,copy,tohash=table.insert,table.imerge,table.copy,table.tohash
+local next,type=next,type
+local report=logs.reporter("otf","devanagari")
+fonts=fonts       or {}
+fonts.analyzers=fonts.analyzers   or {}
+fonts.analyzers.methods=fonts.analyzers.methods or { node={ otf={} } }
+local otf=fonts.handlers.otf
+local handlers=otf.handlers
+local methods=fonts.analyzers.methods
+local otffeatures=fonts.constructors.features.otf
+local registerotffeature=otffeatures.register
+local nuts=nodes.nuts
+local getnext=nuts.getnext
+local getprev=nuts.getprev
+local getboth=nuts.getboth
+local getid=nuts.getid
+local getchar=nuts.getchar
+local getfont=nuts.getfont
+local getsubtype=nuts.getsubtype
+local setlink=nuts.setlink
+local setnext=nuts.setnext
+local setprev=nuts.setprev
+local setchar=nuts.setchar
+local getprop=nuts.getprop
+local setprop=nuts.setprop
+local ischar=nuts.ischar
+local insert_node_after=nuts.insert_after
+local copy_node=nuts.copy
+local remove_node=nuts.remove
+local flush_list=nuts.flush_list
+local flush_node=nuts.flush_node
+local copyinjection=nodes.injections.copy 
+local unsetvalue=attributes.unsetvalue
+local fontdata=fonts.hashes.identifiers
+local a_state=attributes.private('state')
+local a_syllabe=attributes.private('syllabe')
+local dotted_circle=0x25CC
+local c_nbsp=0x00A0
+local c_zwnj=0x200C
+local c_zwj=0x200D
+local states=fonts.analyzers.states 
+local s_rphf=states.rphf
+local s_half=states.half
+local s_pref=states.pref
+local s_blwf=states.blwf
+local s_pstf=states.pstf
+local s_init=states.init
+local replace_all_nbsp=nil
+replace_all_nbsp=function(head) 
+ replace_all_nbsp=typesetters and typesetters.characters and typesetters.characters.replacenbspaces or function(head)
+  return head
+ end
+ return replace_all_nbsp(head)
+end
+local processcharacters=nil
+if context then
+
+--removed
+
+else
+ function processcharacters(head,font)
+  local processors=fontdata[font].shared.processes
+  for i=1,#processors do
+   head=processors[i](head,font,0)
+  end
+  return head
+ end
+end
+local indicgroups=characters and characters.indicgroups
+if not indicgroups and characters then
+ local indic={
+  c={},
+  i={},
+  d={},
+  m={},
+  s={},
+  o={},
+ }
+ local indicmarks={
+  l={},
+  t={},
+  b={},
+  r={},
+  s={},
+ }
+ local indicclasses={
+  nukta={},
+  halant={},
+  ra={},
+  anudatta={},
+ }
+ local indicorders={
+  bp={},
+  ap={},
+  bs={},
+  as={},
+  bh={},
+  ah={},
+  bm={},
+  am={},
+ }
+ for k,v in next,characters.data do
+  local i=v.indic
+  if i then
+   indic[i][k]=true
+   i=v.indicmark
+   if i then
+    if i=="s" then
+     local s=v.specials
+     indicmarks[i][k]={ s[2],s[3] }
+    else
+     indicmarks[i][k]=true
+    end
+   end
+   i=v.indicclass
+   if i then
+    indicclasses[i][k]=true
+   end
+   i=v.indicorder
+   if i then
+    indicorders[i][k]=true
+   end
+  end
+ end
+ indicgroups={
+  consonant=indic.c,
+  independent_vowel=indic.i,
+  dependent_vowel=indic.d,
+  vowel_modifier=indic.m,
+  stress_tone_mark=indic.s,
+  pre_mark=indicmarks.l,
+  above_mark=indicmarks.t,
+  below_mark=indicmarks.b,
+  post_mark=indicmarks.r,
+  twopart_mark=indicmarks.s,
+  nukta=indicclasses.nukta,
+  halant=indicclasses.halant,
+  ra=indicclasses.ra,
+  anudatta=indicclasses.anudatta,
+  before_postscript=indicorders.bp,
+  after_postscript=indicorders.ap,
+  before_half=indicorders.bh,
+  after_half=indicorders.ah,
+  before_subscript=indicorders.bs,
+  after_subscript=indicorders.as,
+  before_main=indicorders.bm,
+  after_main=indicorders.am,
+ }
+ indic=nil
+ indicmarks=nil
+ indicclasses=nil
+ indicorders=nil
+ characters.indicgroups=indicgroups
+end
+local consonant=indicgroups.consonant
+local independent_vowel=indicgroups.independent_vowel
+local dependent_vowel=indicgroups.dependent_vowel
+local vowel_modifier=indicgroups.vowel_modifier
+local stress_tone_mark=indicgroups.stress_tone_mark
+local pre_mark=indicgroups.pre_mark
+local above_mark=indicgroups.above_mark
+local below_mark=indicgroups.below_mark
+local post_mark=indicgroups.post_mark
+local twopart_mark=indicgroups.twopart_mark
+local nukta=indicgroups.nukta
+local halant=indicgroups.halant
+local ra=indicgroups.ra
+local anudatta=indicgroups.anudatta
+local before_postscript=indicgroups.before_postscript
+local after_postscript=indicgroups.after_postscript
+local before_half=indicgroups.before_half
+local after_half=indicgroups.after_half
+local before_subscript=indicgroups.before_subscript
+local after_subscript=indicgroups.after_subscript
+local before_main=indicgroups.before_main
+local after_main=indicgroups.after_main
+local mark_four=table.merged (
+ pre_mark,
+ above_mark,
+ below_mark,
+ post_mark
+)
+local mark_above_below_post=table.merged (
+ above_mark,
+ below_mark,
+ post_mark
+)
+local zw_char={ 
+ [c_zwnj]=true,
+ [c_zwj ]=true,
+}
+local dflt_true={
+ dflt=true,
+}
+local two_defaults={}
+local one_defaults={}
+local false_flags={ false,false,false,false }
+local sequence_reorder_matras={
+ features={ dv01=two_defaults },
+ flags=false_flags,
+ name="dv01_reorder_matras",
+ order={ "dv01" },
+ type="devanagari_reorder_matras",
+ nofsteps=1,
+ steps={
+  {
+   coverage=pre_mark,
+  }
+ }
+}
+local sequence_reorder_reph={
+ features={ dv02=two_defaults },
+ flags=false_flags,
+ name="dv02_reorder_reph",
+ order={ "dv02" },
+ type="devanagari_reorder_reph",
+ nofsteps=1,
+ steps={
+  {
+   coverage={},
+  }
+ }
+}
+local sequence_reorder_pre_base_reordering_consonants={
+ features={ dv03=one_defaults },
+ flags=false_flags,
+ name="dv03_reorder_pre_base_reordering_consonants",
+ order={ "dv03" },
+ type="devanagari_reorder_pre_base_reordering_consonants",
+ nofsteps=1,
+ steps={
+  {
+   coverage={},
+  }
+ }
+}
+local sequence_remove_joiners={
+ features={ dv04=one_defaults },
+ flags=false_flags,
+ name="dv04_remove_joiners",
+ order={ "dv04" },
+ type="devanagari_remove_joiners",
+ nofsteps=1,
+ steps={
+  {
+     coverage=zw_char,
+  },
+ }
+}
+local basic_shaping_forms={
+ akhn=true,
+ blwf=true,
+ cjct=true,
+ half=true,
+ nukt=true,
+ pref=true,
+ pstf=true,
+ rkrf=true,
+ rphf=true,
+ vatu=true,
+ locl=true,
+}
+local valid={
+ abvs=true,
+ akhn=true,
+ blwf=true,
+ calt=true,
+ cjct=true,
+ half=true,
+ haln=true,
+ nukt=true,
+ pref=true,
+ pres=true,
+ pstf=true,
+ psts=true,
+ rkrf=true,
+ rphf=true,
+ vatu=true,
+ pres=true,
+ abvs=true,
+ blws=true,
+ psts=true,
+ haln=true,
+ calt=true,
+ locl=true,
+}
+local scripts={}
+local scripts_one={ "deva","mlym","beng","gujr","guru","knda","orya","taml","telu" }
+local scripts_two={ "dev2","mlm2","bng2","gjr2","gur2","knd2","ory2","tml2","tel2" }
+local nofscripts=#scripts_one
+for i=1,nofscripts do
+ local one=scripts_one[i]
+ local two=scripts_two[i]
+ scripts[one]=true
+ scripts[two]=true
+ two_defaults[two]=dflt_true
+ one_defaults[one]=dflt_true
+ one_defaults[two]=dflt_true
+end
+local function valid_one(s) for i=1,nofscripts do if s[scripts_one[i]] then return true end end end
+local function valid_two(s) for i=1,nofscripts do if s[scripts_two[i]] then return true end end end
+local function initializedevanagi(tfmdata)
+ local script,language=otf.scriptandlanguage(tfmdata,attr) 
+ if scripts[script] then
+  local resources=tfmdata.resources
+  local devanagari=resources.devanagari
+  if not devanagari then
+   report("adding devanagari features to font")
+   local gsubfeatures=resources.features.gsub
+   local sequences=resources.sequences
+   local sharedfeatures=tfmdata.shared.features
+   gsubfeatures["dv01"]=two_defaults 
+   gsubfeatures["dv02"]=two_defaults 
+   gsubfeatures["dv03"]=one_defaults 
+   gsubfeatures["dv04"]=one_defaults
+   local reorder_pre_base_reordering_consonants=copy(sequence_reorder_pre_base_reordering_consonants)
+   local reorder_reph=copy(sequence_reorder_reph)
+   local reorder_matras=copy(sequence_reorder_matras)
+   local remove_joiners=copy(sequence_remove_joiners)
+   local lastmatch=0
+   for s=1,#sequences do 
+    local features=sequences[s].features
+    if features then
+     for k,v in next,features do
+      if k=="locl" then
+       local steps=sequences[s].steps
+       local nofsteps=sequences[s].nofsteps
+       for i=1,nofsteps do
+        local step=steps[i]
+        local coverage=step.coverage
+        if coverage then
+         for k,v in next,pre_mark do
+          local locl=coverage[k]
+          if locl then
+           if #locl>0 then	
+            for j=1,#locl do
+             local ck=locl[j]
+             local f=ck[4]
+             local chainlookups=ck[6]
+             if chainlookups then
+              local chainlookup=chainlookups[f]
+              for j=1,#chainlookup do
+               local chainstep=chainlookup[j]
+               local steps=chainstep.steps
+               local nofsteps=chainstep.nofsteps
+               for i=1,nofsteps do
+                local step=steps[i]
+                local coverage=step.coverage
+                if coverage then
+                 locl=coverage[k]
+                end
+               end
+              end
+             end
+            end
+           end
+           if locl then
+            reorder_matras.steps[1].coverage[locl]=true
+           end
+          end
+         end
+        end
+       end
+      end
+      if basic_shaping_forms[k] then
+       lastmatch=lastmatch+1
+       if s~=lastmatch then
+        table.insert(sequences,lastmatch,table.remove(sequences,s))
+       end
+      end
+     end
+    end
+   end
+   local insertindex=lastmatch+1
+   if tfmdata.properties.language then
+    dflt_true[tfmdata.properties.language]=true
+   end
+   insert(sequences,insertindex,reorder_pre_base_reordering_consonants)
+   insert(sequences,insertindex,reorder_reph)
+   insert(sequences,insertindex,reorder_matras)
+   insert(sequences,insertindex,remove_joiners)
+   local blwfcache={}
+   local vatucache={}
+   local pstfcache={}
+   local seqsubset={}
+   local rephstep={
+    coverage={} 
+   }
+   local devanagari={
+    reph=false,
+    vattu=false,
+    blwfcache=blwfcache,
+    vatucache=vatucache,
+    pstfcache=pstfcache,
+    seqsubset=seqsubset,
+    reorderreph=rephstep,
+   }
+   reorder_reph.steps={ rephstep }
+   local pre_base_reordering_consonants={}
+   reorder_pre_base_reordering_consonants.steps[1].coverage=pre_base_reordering_consonants
+   resources.devanagari=devanagari
+   for s=1,#sequences do
+    local sequence=sequences[s]
+    local steps=sequence.steps
+    local nofsteps=sequence.nofsteps
+    local features=sequence.features
+    local has_rphf=features.rphf
+    local has_blwf=features.blwf
+    local has_vatu=features.vatu
+    local has_pstf=features.pstf
+    if has_rphf and has_rphf[script] then
+     devanagari.reph=true
+    elseif (has_blwf and has_blwf[script] ) or (has_vatu and has_vatu[script] ) then
+     devanagari.vattu=true
+     for i=1,nofsteps do
+      local step=steps[i]
+      local coverage=step.coverage
+      if coverage then
+       for k,v in next,coverage do
+        for h,w in next,halant do
+         if v[h] then
+          if not blwfcache[k] then
+           blwfcache[k]=v
+          end
+         end
+         if has_vatu and has_vatu[script] and not vatucache[k] then
+          vatucache[k]=v
+         end
+        end
+       end
+      end
+     end
+    elseif has_pstf and has_pstf[script] then
+     for i=1,nofsteps do
+      local step=steps[i]
+      local coverage=step.coverage
+      if coverage then
+       for k,v in next,coverage do
+        if not pstfcache[k] then
+         pstfcache[k]=v
+        end
+       end
+       for k,v in next,ra do
+        local r=coverage[k]
+        if r then
+         local found=false
+         if #r>0 then  
+          for j=1,#r do
+           local ck=r[j]
+           local f=ck[4]
+           local chainlookups=ck[6]
+           if chainlookups and chainlookups[f] then	
+            local chainlookup=chainlookups[f]
+            for j=1,#chainlookup do
+             local chainstep=chainlookup[j]
+             local steps=chainstep.steps
+             local nofsteps=chainstep.nofsteps
+             for i=1,nofsteps do
+              local step=steps[i]
+              local coverage=step.coverage
+              if coverage then
+               local h=coverage[k]
+               if h then
+                for k,v in next,h do
+                 found=v and v.ligature
+                 if found then
+                  pre_base_reordering_consonants[found]=true
+                  break
+                 end
+                end
+                if found then
+                 break
+                end
+               end
+              end
+             end
+            end
+           end
+          end
+         else
+          for k,v in next,r do
+           found=v and v.ligature
+           if found then
+            pre_base_reordering_consonants[found]=true
+            break
+           end
+          end
+         end
+         if found then
+          break
+         end
+        end
+       end
+      end
+     end
+    end
+    for kind,spec in next,features do
+     if valid[kind] and valid_two(spec)then
+      for i=1,nofsteps do
+       local step=steps[i]
+       local coverage=step.coverage
+       if coverage then
+        local reph,rephbase=false,false
+        if kind=="rphf" then
+         for k,v in next,ra do
+          local r=coverage[k]
+          if r then
+           rephbase=k
+           local h=false
+           if #r>0 then	
+            for j=1,#r do
+             local ck=r[j]
+             local f=ck[4]
+             local chainlookups=ck[6]
+             if chainlookups then
+              local chainlookup=chainlookups[f]
+              for j=1,#chainlookup do
+               local chainstep=chainlookup[j]
+               local steps=chainstep.steps
+               local nofsteps=chainstep.nofsteps
+               for i=1,nofsteps do
+                local step=steps[i]
+                local coverage=step.coverage
+                if coverage then
+                 local r=coverage[k]
+                 if r then
+                  for k,v in next,halant do
+                   local h=r[k]
+                   if h then
+                    reph=h.ligature or false
+                    break
+                   end
+                  end
+                  if h then
+                   break
+                  end
+                 end
+                end
+               end
+              end
+             end
+            end
+           else
+            for k,v in next,halant do
+             local h=r[k]
+             if h then
+              reph=h.ligature or false
+              break
+             end
+            end
+           end
+           if reph then
+            break
+           end
+          end
+         end
+        end
+        seqsubset[#seqsubset+1]={ kind,coverage,reph,rephbase }
+       end
+      end
+     end
+     if kind=="pref" then
+      local steps=sequence.steps
+      local nofsteps=sequence.nofsteps
+      for i=1,nofsteps do
+       local step=steps[i]
+       local coverage=step.coverage
+       if coverage then
+        for k,v in next,halant do
+         local h=coverage[k]
+         if h then
+          local found=false
+          if #h>0 then 
+           for j=1,#h do
+            local ck=h[j]
+            local f=ck[4]
+            local chainlookups=ck[6]
+            if chainlookups then
+             local chainlookup=chainlookups[f]
+             for j=1,#chainlookup do
+              local chainstep=chainlookup[j]
+              local steps=chainstep.steps
+              local nofsteps=chainstep.nofsteps
+              for i=1,nofsteps do
+               local step=steps[i]
+               local coverage=step.coverage
+               if coverage then
+                local h=coverage[k]
+                if h then
+                 for k,v in next,h do
+                  found=v and v.ligature
+                  if found then
+                   pre_base_reordering_consonants[found]=true
+                   break
+                  end
+                 end
+                 if found then
+                  break
+                 end
+                end
+               end
+              end
+             end
+            end
+           end
+          else
+           for k,v in next,h do
+            found=v and v.ligature
+            if found then
+             pre_base_reordering_consonants[found]=true
+             break
+            end
+           end
+          end
+          if found then
+           break
+          end
+         end
+        end
+       end
+      end
+     end
+    end
+   end
+   if two_defaults[script] then
+    sharedfeatures["dv01"]=true 
+    sharedfeatures["dv02"]=true 
+    sharedfeatures["dv03"]=true 
+    sharedfeatures["dv04"]=true 
+   elseif one_defaults[script] then
+    sharedfeatures["dv03"]=true 
+    sharedfeatures["dv04"]=true 
+   end
+   if script=="mlym" or script=="taml" then
+    devanagari.left_matra_before_base=true
+   end
+  end
+ end
+end
+registerotffeature {
+ name="devanagari",
+ description="inject additional features",
+ default=true,
+ initializers={
+  node=initializedevanagi,
+ },
+}
+local show_syntax_errors=false
+local function inject_syntax_error(head,current,char)
+ local signal=copy_node(current)
+ copyinjection(signal,current)
+ if pre_mark[char] then
+  setchar(signal,dotted_circle)
+ else
+  setchar(current,dotted_circle)
+ end
+ return insert_node_after(head,current,signal)
+end
+local function initialize_one(font,attr) 
+ local tfmdata=fontdata[font]
+ local datasets=otf.dataset(tfmdata,font,attr) 
+ local devanagaridata=datasets.devanagari
+ if not devanagaridata then
+  devanagaridata={
+   reph=false,
+   vattu=false,
+   blwfcache={},
+   vatucache={},
+   pstfcache={},
+  }
+  datasets.devanagari=devanagaridata
+  local resources=tfmdata.resources
+  local devanagari=resources.devanagari
+  for s=1,#datasets do
+   local dataset=datasets[s]
+   if dataset and dataset[1] then 
+    local kind=dataset[4]
+    if kind=="rphf" then
+     devanagaridata.reph=true
+    elseif kind=="blwf" or kind=="vatu" then
+     devanagaridata.vattu=true
+     devanagaridata.blwfcache=devanagari.blwfcache
+     devanagaridata.vatucache=devanagari.vatucache
+     devanagaridata.pstfcache=devanagari.pstfcache
+    end
+   end
+  end
+ end
+ return devanagaridata.reph,devanagaridata.vattu,devanagaridata.blwfcache,devanagaridata.vatucache,devanagaridata.pstfcache
+end
+local function contextchain(contexts,n)
+ local char=getchar(n)
+ for k=1,#contexts do
+  local ck=contexts[k]
+  local seq=ck[3]
+  local f=ck[4]
+  local l=ck[5]
+  if (l-f)==1 and seq[f+1][char] then
+   local ok=true
+   local c=n
+   for i=l+1,#seq do
+    c=getnext(c)
+    if not c or not seq[i][ischar(c)] then
+     ok=false
+     break
+    end
+   end
+   if ok then
+    c=getprev(n)
+    for i=1,f-1 do
+     c=getprev(c)
+     if not c or not seq[f-i][ischar(c)] then
+      ok=false
+     end
+    end
+   end
+   if ok then
+    return true
+   end
+  end
+ end
+ return false
+end
+local function order_matras(c)
+ local cn=getnext(c)
+ local char=getchar(cn)
+ while dependent_vowel[char] do
+  local next=getnext(cn)
+  local cc=c
+  local cchar=getchar(cc)
+  while cc~=cn do
+   if (above_mark[char] and (below_mark[cchar] or post_mark[cchar])) or (below_mark[char] and (post_mark[cchar])) then
+    local prev,next=getboth(cn)
+    if next then
+     setprev(next,prev)
+    end
+    setnext(prev,next)
+    setnext(getprev(cc),cn)
+    setprev(cn,getprev(cc))
+    setnext(cn,cc)
+    setprev(cc,cn)
+    break
+   end
+   cc=getnext(cc)
+   cchar=getchar(cc)
+  end
+  cn=next
+  char=getchar(cn)
+ end
+end
+local function reorder_one(head,start,stop,font,attr,nbspaces)
+ local reph,vattu,blwfcache,vatucache,pstfcache=initialize_one(font,attr) 
+ local devanagari=fontdata[font].resources.devanagari
+ local current=start
+ local n=getnext(start)
+ local base=nil
+ local firstcons=nil
+ local lastcons=nil
+ local basefound=false
+ if reph and ra[getchar(start)] and halant[getchar(n)] then
+  if n==stop then
+   return head,stop,nbspaces
+  end
+  if getchar(getnext(n))==c_zwj then
+   current=start
+  else
+   current=getnext(n)
+   setprop(start,a_state,s_rphf)
+  end
+ end
+ if getchar(current)==c_nbsp then
+  if current==stop then
+   stop=getprev(stop)
+   head=remove_node(head,current)
+   flush_node(current)
+   return head,stop,nbspaces
+  else
+   nbspaces=nbspaces+1
+   base=current
+   firstcons=current
+   lastcons=current
+   current=getnext(current)
+   if current~=stop then
+    local char=getchar(current)
+    if nukta[char] then
+     current=getnext(current)
+     char=getchar(current)
+    end
+    if char==c_zwj and current~=stop then
+     local next=getnext(current)
+     if next~=stop and halant[getchar(next)] then
+      current=next
+      next=getnext(current)
+      local tmp=next and getnext(next) or nil 
+      local changestop=next==stop
+      local tempcurrent=copy_node(next)
+      copyinjection(tempcurrent,next)
+      local nextcurrent=copy_node(current)
+      copyinjection(nextcurrent,current) 
+      setlink(tempcurrent,nextcurrent)
+      setprop(tempcurrent,a_state,s_blwf)
+      tempcurrent=processcharacters(tempcurrent,font)
+      setprop(tempcurrent,a_state,unsetvalue)
+      if getchar(next)==getchar(tempcurrent) then
+       flush_list(tempcurrent)
+       if show_syntax_errors then
+        head,current=inject_syntax_error(head,current,char)
+       end
+      else
+       setchar(current,getchar(tempcurrent)) 
+       local freenode=getnext(current)
+       setlink(current,tmp)
+       flush_node(freenode)
+       flush_list(tempcurrent)
+       if changestop then
+        stop=current
+       end
+      end
+     end
+    end
+   end
+  end
+ end
+ while not basefound do
+  local char=getchar(current)
+  if consonant[char] then
+   setprop(current,a_state,s_half)
+   if not firstcons then
+    firstcons=current
+   end
+   lastcons=current
+   if not base then
+    base=current
+   elseif blwfcache[char] then
+    setprop(current,a_state,s_blwf)
+   elseif pstfcache[char] then
+    setprop(current,a_state,s_pstf)
+   else
+    base=current
+   end
+  end
+  basefound=current==stop
+  current=getnext(current)
+ end
+ if base~=lastcons then
+  local np=base
+  local n=getnext(base)
+  local ch=getchar(n)
+  if nukta[ch] then
+   np=n
+   n=getnext(n)
+   ch=getchar(n)
+  end
+  if halant[ch] then
+   if lastcons~=stop then
+    local ln=getnext(lastcons)
+    if nukta[getchar(ln)] then
+     lastcons=ln
+    end
+   end
+   local nn=getnext(n)
+   local ln=getnext(lastcons) 
+   setlink(np,nn)
+   setnext(lastcons,n)
+   if ln then
+    setprev(ln,n)
+   end
+   setnext(n,ln)
+   setprev(n,lastcons)
+   if lastcons==stop then
+    stop=n
+   end
+  end
+ end
+ n=getnext(start)
+ if n~=stop and ra[getchar(start)] and halant[getchar(n)] and not zw_char[getchar(getnext(n))] then
+  local matra=base
+  if base~=stop then
+   local next=getnext(base)
+   if dependent_vowel[getchar(next)] then
+    matra=next
+   end
+  end
+  local sp=getprev(start)
+  local nn=getnext(n)
+  local mn=getnext(matra)
+  setlink(sp,nn)
+  setlink(matra,start)
+  setlink(n,mn)
+  if head==start then
+   head=nn
+  end
+  start=nn
+  if matra==stop then
+   stop=n
+  end
+ end
+ local current=start
+ while current~=stop do
+  local next=getnext(current)
+  if next~=stop and halant[getchar(next)] and getchar(getnext(next))==c_zwnj then
+   setprop(current,a_state,unsetvalue)
+  end
+  current=next
+ end
+ if base~=stop and getprop(base,a_state) then 
+  local next=getnext(base)
+  if halant[getchar(next)] and not (next~=stop and getchar(getnext(next))==c_zwj) then
+   setprop(base,a_state,unsetvalue)
+  end
+ end
+ local current,allreordered,moved=start,false,{ [base]=true }
+ local a,b,p,bn=base,base,base,getnext(base)
+ if base~=stop and nukta[getchar(bn)] then
+  a,b,p=bn,bn,bn
+ end
+ while not allreordered do
+  local c=current
+  local n=getnext(current)
+  local l=nil 
+  if c~=stop then
+   local ch=getchar(n)
+   if nukta[ch] then
+    c=n
+    n=getnext(n)
+    ch=getchar(n)
+   end
+   if c~=stop then
+    if halant[ch] then
+     c=n
+     n=getnext(n)
+     ch=getchar(n)
+    end
+    local tpm=twopart_mark[ch]
+    while tpm do
+     local extra=copy_node(n)
+     copyinjection(extra,n)
+     ch=tpm[1]
+     setchar(n,ch)
+     setchar(extra,tpm[2])
+     head=insert_node_after(head,current,extra)
+     tpm=twopart_mark[ch]
+    end
+    while c~=stop and dependent_vowel[ch] do
+     c=n
+     n=getnext(n)
+     ch=getchar(n)
+    end
+    if c~=stop then
+     if vowel_modifier[ch] then
+      c=n
+      n=getnext(n)
+      ch=getchar(n)
+     end
+     if c~=stop and stress_tone_mark[ch] then
+      c=n
+      n=getnext(n)
+     end
+    end
+   end
+  end
+  local bp=getprev(firstcons)
+  local cn=getnext(current)
+  local last=getnext(c)
+  while cn~=last do
+   if pre_mark[getchar(cn)] then
+    if devanagari.left_matra_before_base then
+     local prev,next=getboth(cn)
+     setlink(prev,next)
+     if cn==stop then
+      stop=getprev(cn)
+     end
+     if base==start then
+        if head==start then
+         head=cn
+        end
+        start=cn
+     end
+     setlink(getprev(base),cn)
+     setlink(cn,base)
+     cn=next
+    else
+     if bp then
+      setnext(bp,cn)
+     end
+     local prev,next=getboth(cn)
+     if next then
+      setprev(next,prev)
+     end
+     setnext(prev,next)
+     if cn==stop then
+      stop=prev
+     end
+     setprev(cn,bp)
+     setlink(cn,firstcons)
+     if firstcons==start then
+      if head==start then
+       head=cn
+      end
+      start=cn
+     end
+     cn=next
+    end
+   elseif current~=base and dependent_vowel[getchar(cn)] then
+    local prev,next=getboth(cn)
+    if next then
+     setprev(next,prev)
+    end
+    setnext(prev,next)
+    if cn==stop then
+     stop=prev
+    end
+    setlink(b,cn,getnext(b))
+    order_matras(cn)
+    cn=next
+   elseif current==base and dependent_vowel[getchar(cn)] then
+    local cnn=getnext(cn)
+    order_matras(cn)
+    cn=cnn
+    while cn~=last and dependent_vowel[getchar(cn)] do
+     cn=getnext(cn)
+    end
+   else
+    cn=getnext(cn)
+   end
+  end
+  allreordered=c==stop
+  current=getnext(c)
+ end
+ if reph or vattu then
+  local current,cns=start,nil
+  while current~=stop do
+   local c=current
+   local n=getnext(current)
+   if ra[getchar(current)] and halant[getchar(n)] then
+    c=n
+    n=getnext(n)
+    local b,bn=base,base
+    while bn~=stop  do
+     local next=getnext(bn)
+     if dependent_vowel[getchar(next)] then
+      b=next
+     end
+     bn=next
+    end
+    if getprop(current,a_state)==s_rphf then
+     if b~=current then
+      if current==start then
+       if head==start then
+        head=n
+       end
+       start=n
+      end
+      if b==stop then
+       stop=c
+      end
+      local prev=getprev(current)
+      setlink(prev,n)
+      local next=getnext(b)
+      setlink(c,next)
+      setlink(b,current)
+     end
+    elseif cns and getnext(cns)~=current then
+     local cp=getprev(current)
+     local cnsn=getnext(cns)
+     setlink(cp,n)
+     setlink(cns,current)
+     setlink(c,cnsn)
+     if c==stop then
+      stop=cp
+      break
+     end
+     current=getprev(n)
+    end
+   else
+    local char=getchar(current)
+    if consonant[char] then
+     cns=current
+     local next=getnext(cns)
+     if halant[getchar(next)] then
+      cns=next
+     end
+     if not vatucache[char] then
+      next=getnext(cns)
+      while dependent_vowel[getchar(next)] do
+       cns=next
+       next=getnext(cns)
+      end
+     end
+    elseif char==c_nbsp then
+     nbspaces=nbspaces+1
+     cns=current
+     local next=getnext(cns)
+     if halant[getchar(next)] then
+      cns=next
+     end
+     if not vatucache[char] then
+      next=getnext(cns)
+      while dependent_vowel[getchar(next)] do
+       cns=next
+       next=getnext(cns)
+      end
+     end
+    end
+   end
+   current=getnext(current)
+  end
+ end
+ if getchar(base)==c_nbsp then
+  nbspaces=nbspaces-1
+  if base==stop then
+  	stop=getprev(stop)
+  end
+  head=remove_node(head,base)
+  flush_node(base)
+ end
+ return head,stop,nbspaces
+end
+function handlers.devanagari_reorder_matras(head,start) 
+ local current=start 
+ local startfont=getfont(start)
+ local startattr=getprop(start,a_syllabe)
+ while current do
+  local char=ischar(current,startfont)
+  local next=getnext(current)
+  if char and getprop(current,a_syllabe)==startattr then
+   if halant[char] then 
+    if next then
+     local char=ischar(next,startfont)
+     if char and zw_char[char] and getprop(next,a_syllabe)==startattr then
+      current=next
+      next=getnext(current)
+     end
+    end
+    local startnext=getnext(start)
+    head=remove_node(head,start)
+    setlink(start,next)
+    setlink(current,start)
+    start=startnext
+    break
+   end
+  else
+   break
+  end
+  current=next
+ end
+ return head,start,true
+end
+local rephbase={}
+function handlers.devanagari_reorder_reph(head,start)
+ local current=getnext(start)
+ local startnext=nil
+ local startprev=nil
+ local startfont=getfont(start)
+ local startattr=getprop(start,a_syllabe)
+ ::step_1::
+ local char=ischar(start,startfont)
+ local rephbase=rephbase[startfont][char]
+ if char and after_subscript[rephbase] then
+  goto step_5
+ end
+ ::step_2::
+ if char and not after_postscript[rephbase] then
+  while current do
+   local char=ischar(current,startfont)
+   if char and getprop(current,a_syllabe)==startattr then
+    if halant[char] then
+     local next=getnext(current)
+     if next then
+      local nextchar=ischar(next,startfont)
+      if nextchar and zw_char[nextchar] and getprop(next,a_syllabe)==startattr then
+       current=next
+       next=getnext(current)
+      end
+     end
+     startnext=getnext(start)
+     head=remove_node(head,start)
+     setlink(start,next)
+     setlink(current,start)
+     start=startnext
+     startattr=getprop(start,a_syllabe)
+     break
+    end
+    current=getnext(current)
+   else
+    break
+   end
+  end
+ end
+ ::step_3::
+ if not startnext then
+  if char and after_main[rephbase] then
+   current=getnext(start)
+   while current do
+    local char=ischar(current,startfont)
+    if char and getprop(current,a_syllabe)==startattr then
+     if consonant[char] and not getprop(current,a_state)==s_pref then
+      startnext=getnext(start)
+      head=remove_node(head,start)
+      setlink(current,start)
+      setlink(start,getnext(current))
+      start=startnext
+      startattr=getprop(start,a_syllabe)
+      break
+     end
+     current=getnext(current)
+    else
+     break
+    end
+   end
+  end
+ end
+ ::step_4::
+ if not startnext then
+  if char and before_postscript[rephbase] then
+   current=getnext(start)
+   local c=nil
+   while current do
+    local char=ischar(current,startfont)
+    if char and getprop(current,a_syllabe)==startattr then
+     if getprop(current,a_state)==s_pstf then 
+      startnext=getnext(start)
+      head=remove_node(head,start)
+      setlink(getprev(current),start)
+      setlink(start,current)
+      start=startnext
+      startattr=getprop(start,a_syllabe)
+      break
+     elseif not c and (vowel_modifier[char] or stress_tone_mark[char] ) then
+      c=current
+     end
+     current=getnext(current)
+    else
+     if c then
+      startnext=getnext(start)
+      head=remove_node(head,start)
+      setlink(getprev(c),start)
+      setlink(start,c)
+      start=startnext
+      startattr=getprop(start,a_syllabe)
+     end
+     break
+    end
+   end
+  end
+ end
+ ::step_5::
+ if not startnext then
+  current=getnext(start)
+  local c=nil
+  while current do
+   local char=ischar(current,startfont)
+   if char and getprop(current,a_syllabe)==startattr then
+    local state=getprop(current,a_state)
+    if before_subscript[rephbase] and (state==s_blwf or state==s_pstf) then
+     c=current
+    elseif after_subscript[rephbase] and (state==s_pstf) then
+     c=current
+    end
+    current=getnext(current)
+   else
+    break
+   end
+  end
+  if c then
+   startnext=getnext(start)
+   head=remove_node(head,start)
+   setlink(getprev(c),start)
+   setlink(start,c)
+   start=startnext
+   startattr=getprop(start,a_syllabe)
+  end
+ end
+ ::step_6::
+ if not startnext then
+  current=start
+  local next=getnext(current)
+  while next do
+   local nextchar=ischar(next,startfont)
+   if nextchar and getprop(next,a_syllabe)==startattr then
+    current=next
+    next=getnext(current)
+   else
+    break
+   end
+  end
+  if start~=current then
+   startnext=getnext(start)
+   head=remove_node(head,start)
+   setlink(start,getnext(current))
+   setlink(current,start)
+   start=startnext
+  end
+ end
+ return head,start,true
+end
+local reordered_pre_base_reordering_consonants={} 
+function handlers.devanagari_reorder_pre_base_reordering_consonants(head,start)
+ if reordered_pre_base_reordering_consonants[start] then
+  return head,start,true
+ end
+ local current=start 
+ local startfont=getfont(start)
+ local startattr=getprop(start,a_syllabe)
+ while current do
+  local char=ischar(current,startfont)
+  local next=getnext(current)
+  if char and getprop(current,a_syllabe)==startattr then
+   if halant[char] then 
+    if next then
+     local char=ischar(next,startfont)
+     if char and zw_char[char] and getprop(next,a_syllabe)==startattr then
+      current=next
+      next=getnext(current)
+     end
+    end
+    local startnext=getnext(start)
+    head=remove_node(head,start)
+    setlink(start,next)
+    setlink(current,start)
+    reordered_pre_base_reordering_consonants[start]=true
+    start=startnext
+    return head,start,true
+   end
+  else
+   break
+  end
+  current=next
+ end
+ local startattr=getprop(start,a_syllabe)
+ local current=getprev(start)
+ while current and getprop(current,a_syllabe)==startattr do
+  local char=ischar(current)
+  if (not dependent_vowel[char] and not getprop(current,a_state) or getprop(current,a_state)==s_init) then
+   startnext=getnext(start)
+   head=remove_node(head,start)
+   if current==head then
+    setlink(start,current)
+    head=start
+   else
+    setlink(getprev(current),start)
+    setlink(start,current)
+   end
+   reordered_pre_base_reordering_consonants[start]=true
+   start=startnext
+   break
+  end
+  current=getprev(current)
+ end
+ return head,start,true
+end
+function handlers.devanagari_remove_joiners(head,start,kind,lookupname,replacement)
+ local stop=getnext(start)
+ local font=getfont(start)
+ local last=start
+ while stop do
+  local char=ischar(stop,font)
+  if char and (char==c_zwnj or char==c_zwj) then
+   last=stop
+   stop=getnext(stop)
+  else
+   break
+  end
+ end
+ local prev=getprev(start)
+ if stop then
+  setnext(last)
+  setlink(prev,stop)
+ elseif prev then
+  setnext(prev)
+ end
+ if head==start then
+  head=stop
+ end
+ flush_list(start)
+ return head,stop,true
+end
+local function initialize_two(font,attr)
+ local devanagari=fontdata[font].resources.devanagari
+ if devanagari then
+  return devanagari.seqsubset or {},devanagari.reorderreph or {}
+ else
+  return {},{}
+ end
+end
+local function reorder_two(head,start,stop,font,attr,nbspaces) 
+ local seqsubset,reorderreph=initialize_two(font,attr)
+ local halfpos=nil
+ local basepos=nil
+ local subpos=nil
+ local postpos=nil
+ reorderreph.coverage={}
+ rephbase[font]={}
+ for i=1,#seqsubset do
+  local subset=seqsubset[i]
+  local kind=subset[1]
+  local lookupcache=subset[2]
+  if kind=="rphf" then
+   reorderreph.coverage[subset[3]]=true 
+   rephbase[font][subset[3]]=subset[4]
+   local current=start
+   local last=getnext(stop)
+   while current~=last do
+    if current~=stop then
+     local c=getchar(current)
+     local found=lookupcache[c]
+     if found then
+      local next=getnext(current)
+      if found[getchar(next)] or contextchain(found,next) then 
+       local afternext=next~=stop and getnext(next)
+       if afternext and zw_char[getchar(afternext)] then 
+        current=afternext 
+       elseif current==start then
+        setprop(current,a_state,s_rphf)
+        current=next
+       else
+        current=next
+       end
+      end
+     end
+    end
+    current=getnext(current)
+   end
+  elseif kind=="pref" then
+   local current=start
+   local last=getnext(stop)
+   while current~=last do
+    if current~=stop then
+     local c=getchar(current)
+     local found=lookupcache[c]
+     if found then 
+      local next=getnext(current)
+      if found[getchar(next)] or contextchain(found,next) then
+       if (not getprop(current,a_state) and not getprop(next,a_state)) then	
+        setprop(current,a_state,s_pref)
+        setprop(next,a_state,s_pref)
+        current=next
+       end
+      end
+     end
+    end
+    current=getnext(current)
+   end
+  elseif kind=="half" then 
+   local current=start
+   local last=getnext(stop)
+   while current~=last do
+    if current~=stop then
+     local c=getchar(current)
+     local found=lookupcache[c]
+     if found then
+      local next=getnext(current)
+      if found[getchar(next)] or contextchain(found,next) then
+       if next~=stop and getchar(getnext(next))==c_zwnj then 
+        current=next
+       elseif (not getprop(current,a_state)) then	
+        setprop(current,a_state,s_half)
+        if not halfpos then
+         halfpos=current
+        end
+       end
+       current=getnext(current)
+      end
+     end
+    end
+    current=getnext(current)
+   end
+  elseif kind=="blwf" or kind=="vatu" then 
+   local current=start
+   local last=getnext(stop)
+   while current~=last do
+    if current~=stop then
+     local c=getchar(current)
+     local found=lookupcache[c]
+     if found then
+      local next=getnext(current)
+      if found[getchar(next)] or contextchain(found,next) then
+       if (not getprop(current,a_state) and not getprop(next,a_state)) then	
+        setprop(current,a_state,s_blwf)
+        setprop(next,a_state,s_blwf)
+        current=next
+        subpos=current
+       end
+      end
+     end
+    end
+    current=getnext(current)
+   end
+  elseif kind=="pstf" then 
+   local current=start
+   local last=getnext(stop)
+   while current~=last do
+    if current~=stop then
+     local c=getchar(current)
+     local found=lookupcache[c]
+     if found then
+      local next=getnext(current)
+      if found[getchar(next)] or contextchain(found,next) then
+       if (not getprop(current,a_state) and not getprop(next,a_state)) then	
+        setprop(current,a_state,s_pstf)
+        setprop(next,a_state,s_pstf)
+        current=next
+        postpos=current
+       end
+      end
+     end
+    end
+    current=getnext(current)
+   end
+  end
+ end
+ local current,base,firstcons=start,nil,nil
+ if getprop(start,a_state)==s_rphf then
+  current=getnext(getnext(start))
+ end
+ if current~=getnext(stop) and getchar(current)==c_nbsp then
+  if current==stop then
+   stop=getprev(stop)
+   head=remove_node(head,current)
+   flush_node(current)
+   return head,stop,nbspaces
+  else
+   nbspaces=nbspaces+1
+   base=current
+   current=getnext(current)
+   if current~=stop then
+    local char=getchar(current)
+    if nukta[char] then
+     current=getnext(current)
+     char=getchar(current)
+    end
+    if char==c_zwj then
+     local next=getnext(current)
+     if current~=stop and next~=stop and halant[getchar(next)] then
+      current=next
+      next=getnext(current)
+      local tmp=getnext(next)
+      local changestop=next==stop
+      setnext(next)
+      setprop(current,a_state,s_pref)
+      current=processcharacters(current,font)
+      setprop(current,a_state,s_blwf)
+      current=processcharacters(current,font)
+      setprop(current,a_state,s_pstf)
+      current=processcharacters(current,font)
+      setprop(current,a_state,unsetvalue)
+      if halant[getchar(current)] then
+       setnext(getnext(current),tmp)
+       if show_syntax_errors then
+        head,current=inject_syntax_error(head,current,char)
+       end
+      else
+       setnext(current,tmp) 
+       if changestop then
+        stop=current
+       end
+      end
+     end
+    end
+   end
+  end
+ else 
+  local last=getnext(stop)
+  while current~=last do 
+   local next=getnext(current)
+   if consonant[getchar(current)] then
+    if not (current~=stop and next~=stop and halant[getchar(next)] and getchar(getnext(next))==c_zwj) then
+     if not firstcons then
+      firstcons=current
+     end
+     local a=getprop(current,a_state)
+     if not (a==s_blwf or a==s_pstf or (a~=s_rphf and a~=s_blwf and ra[getchar(current)])) then
+      base=current
+     end
+    end
+   end
+   current=next
+  end
+  if not base then
+   base=firstcons
+  end
+ end
+ if not base then
+  if getprop(start,a_state)==s_rphf then
+   setprop(start,a_state,unsetvalue)
+  end
+  return head,stop,nbspaces
+ else
+  if getprop(base,a_state) then 
+   setprop(base,a_state,unsetvalue)
+  end
+  basepos=base
+ end
+ if not halfpos then
+  halfpos=base
+ end
+ if not subpos then
+  subpos=base
+ end
+ if not postpos then
+  postpos=subpos or base
+ end
+ local moved={}
+ local current=start
+ local last=getnext(stop)
+ while current~=last do
+  local char=getchar(current)
+  local target=nil
+  local cn=getnext(current)
+  local tpm=twopart_mark[char]
+  while tpm do
+   local extra=copy_node(current)
+   copyinjection(extra,current)
+   char=tpm[1]
+   setchar(current,char)
+   setchar(extra,tpm[2])
+   head=insert_node_after(head,current,extra)
+   tpm=twopart_mark[char]
+  end
+  if not moved[current] and dependent_vowel[char] then
+   if pre_mark[char] then 
+    moved[current]=true
+    local prev,next=getboth(current)
+    setlink(prev,next)
+    if current==stop then
+     stop=getprev(current)
+    end
+    local pos
+    if before_main[char] then
+     pos=basepos
+    else
+     pos=halfpos
+    end
+    local ppos=getprev(pos) 
+    while ppos and getprop(ppos,a_syllabe)==getprop(pos,a_syllabe) do
+     if getprop(ppos,a_state)==s_pref then
+      pos=ppos
+     end
+     ppos=getprev(ppos)
+    end
+    local ppos=getprev(pos) 
+    while ppos and getprop(ppos,a_syllabe)==getprop(pos,a_syllabe) and halant[ischar(ppos)] do
+     ppos=getprev(ppos)
+     if ppos and getprop(ppos,a_syllabe)==getprop(pos,a_syllabe) and consonant[ischar(ppos)] then
+      pos=ppos
+      ppos=getprev(ppos)
+     else
+      break
+     end
+    end
+    if pos==start then
+     if head==start then
+      head=current
+     end
+     start=current
+    end
+    setlink(getprev(pos),current)
+    setlink(current,pos)
+   elseif above_mark[char] then
+    target=basepos
+    if subpos==basepos then
+     subpos=current
+    end
+    if postpos==basepos then
+     postpos=current
+    end
+    basepos=current
+   elseif below_mark[char] then
+    target=subpos
+    if postpos==subpos then
+     postpos=current
+    end
+    subpos=current
+   elseif post_mark[char] then
+    local n=getnext(postpos) 
+    while n do
+     local v=ischar(n,font)
+     if nukta[v] or stress_tone_mark[v] or vowel_modifier[v] then
+      postpos=n
+     else
+      break
+     end
+     n=getnext(n)
+    end
+    target=postpos
+    postpos=current
+   end
+   if mark_above_below_post[char] then
+    local prev=getprev(current)
+    if prev~=target then
+     local next=getnext(current)
+     setlink(prev,next)
+     if current==stop then
+      stop=prev
+     end
+     setlink(current,getnext(target))
+     setlink(target,current)
+    end
+   end
+  end
+  current=cn
+ end
+ local current=getnext(start)
+ local last=getnext(stop)
+ while current~=last do
+  local char=getchar(current)
+  local cn=getnext(current)
+  if halant[char] and ra[ischar(cn)] and getprop(cn,a_state)~=s_rphf and getprop(cn,a_state)~=s_blwf then
+   if after_main[ischar(cn)] then
+    local prev=getprev(current)
+    local next=getnext(cn)
+    local bpn=getnext(basepos)
+    while bpn and dependent_vowel[ischar(bpn)] do
+     basepos=bpn
+     bpn=getnext(bpn)
+    end
+    if basepos~=prev then
+     setlink(prev,next)
+     setlink(cn,getnext(basepos))
+     setlink(basepos,current)
+     if cn==stop then
+      stop=prev
+     end
+     cn=next
+    end
+   end
+  end
+  current=cn
+ end
+ local current=start
+ local c=nil
+ while current~=stop do
+  local char=getchar(current)
+  if halant[char] or stress_tone_mark[char] then
+   if not c then
+    c=current
+   end
+  else
+   c=nil
+  end
+  local next=getnext(current)
+  if c and nukta[getchar(next)] then
+   if head==c then
+    head=next
+   end
+   if stop==next then
+    stop=current
+   end
+   setlink(getprev(c),next)
+   local nextnext=getnext(next)
+   setnext(current,nextnext)
+   local nextnextnext=getnext(nextnext)
+   if nextnextnext then
+    setprev(nextnextnext,current)
+   end
+   setlink(nextnext,c)
+  end
+  if stop==current then break end
+  current=getnext(current)
+ end
+ if getchar(base)==c_nbsp then
+  if base==stop then
+   stop=getprev(stop)
+  end
+  nbspaces=nbspaces-1
+  head=remove_node(head,base)
+  flush_node(base)
+ end
+ return head,stop,nbspaces
+end
+local separator={}
+imerge(separator,consonant)
+imerge(separator,independent_vowel)
+imerge(separator,dependent_vowel)
+imerge(separator,vowel_modifier)
+imerge(separator,stress_tone_mark)
+for k,v in next,nukta  do separator[k]=true end
+for k,v in next,halant do separator[k]=true end
+local function analyze_next_chars_one(c,font,variant)
+ local n=getnext(c)
+ if not n then
+  return c
+ end
+ if variant==1 then
+  local v=ischar(n,font)
+  if v and nukta[v] then
+   n=getnext(n)
+   if n then
+    v=ischar(n,font)
+   end
+  end
+  if n and v then
+   local nn=getnext(n)
+   if nn then
+    local vv=ischar(nn,font)
+    if vv then
+     local nnn=getnext(nn)
+     if nnn then
+      local vvv=ischar(nnn,font)
+      if vvv then
+       if vv==c_zwj and consonant[vvv] then
+        c=nnn
+       elseif (vv==c_zwnj or vv==c_zwj) and halant[vvv] then
+        local nnnn=getnext(nnn)
+        if nnnn then
+         local vvvv=ischar(nnnn,font)
+         if vvvv and consonant[vvvv] then
+          c=nnnn
+         end
+        end
+       end
+      end
+     end
+    end
+   end
+  end
+ elseif variant==2 then
+  local v=ischar(n,font)
+  if v and nukta[v] then
+   c=n
+  end
+  n=getnext(c)
+  if n then
+   v=ischar(n,font)
+   if v then
+    local nn=getnext(n)
+    if nn then
+     local vv=ischar(nn,font)
+     if vv and zw_char[v] then
+      n=nn
+      v=vv
+      nn=getnext(nn)
+      vv=nn and ischar(nn,font)
+     end
+     if vv and halant[v] and consonant[vv] then
+      c=nn
+     end
+    end
+   end
+  end
+ end
+ local n=getnext(c)
+ if not n then
+  return c
+ end
+ local v=ischar(n,font)
+ if not v then
+  return c
+ end
+ local already_pre_mark   
+ local already_above_mark 
+ local already_below_mark 
+ local already_post_mark  
+ while dependent_vowel[v] do
+	 local vowels=twopart_mark[v] or { v }
+	 for k,v in next,vowels do
+			if pre_mark[v] and not already_pre_mark then
+				already_pre_mark=true
+			elseif above_mark[v] and not already_above_mark then
+				already_above_mark=true
+			elseif below_mark[v] and not already_below_mark then
+				already_below_mark=true
+			elseif post_mark[v] and not already_post_mark then
+				already_post_mark=true
+			else
+				return c
+			end
+	 end
+  c=getnext(c)
+  n=getnext(c)
+  if not n then
+   return c
+  end
+  v=ischar(n,font)
+  if not v then
+   return c
+  end
+ end
+ if nukta[v] then
+  c=getnext(c)
+  n=getnext(c)
+  if not n then
+   return c
+  end
+  v=ischar(n,font)
+  if not v then
+   return c
+  end
+ end
+ if halant[v] then
+  c=getnext(c)
+  n=getnext(c)
+  if not n then
+   return c
+  end
+  v=ischar(n,font)
+  if not v then
+   return c
+  end
+ end
+ if vowel_modifier[v] then
+  c=getnext(c)
+  n=getnext(c)
+  if not n then
+   return c
+  end
+  v=ischar(n,font)
+  if not v then
+   return c
+  end
+ end
+ if stress_tone_mark[v] then
+  c=getnext(c)
+  n=getnext(c)
+  if not n then
+   return c
+  end
+  v=ischar(n,font)
+  if not v then
+   return c
+  end
+ end
+ if stress_tone_mark[v] then
+  return n
+ else
+  return c
+ end
+end
+local function analyze_next_chars_two(c,font)
+ local n=getnext(c)
+ if not n then
+  return c
+ end
+ local v=ischar(n,font)
+ if v and nukta[v] then
+  c=n
+ end
+ n=c
+ while true do
+  local nn=getnext(n)
+  if nn then
+   local vv=ischar(nn,font)
+   if vv then
+    if halant[vv] then
+     n=nn
+     local nnn=getnext(nn)
+     if nnn then
+      local vvv=ischar(nnn,font)
+      if vvv and zw_char[vvv] then
+       n=nnn
+      end
+     end
+    elseif vv==c_zwnj or vv==c_zwj then
+     local nnn=getnext(nn)
+     if nnn then
+      local vvv=ischar(nnn,font)
+      if vvv and halant[vvv] then
+       n=nnn
+      end
+     end
+    else
+     break
+    end
+    local nn=getnext(n)
+    if nn then
+     local vv=ischar(nn,font)
+     if vv and consonant[vv] then
+      n=nn
+      local nnn=getnext(nn)
+      if nnn then
+       local vvv=ischar(nnn,font)
+       if vvv and nukta[vvv] then
+        n=nnn
+       end
+      end
+      c=n
+     else
+      break
+     end
+    else
+     break
+    end
+   else
+    break
+   end
+  else
+   break
+  end
+ end
+ if not c then
+  return
+ end
+ local n=getnext(c)
+ if not n then
+  return c
+ end
+ local v=ischar(n,font)
+ if not v then
+  return c
+ end
+ if anudatta[v] then
+  c=n
+  n=getnext(c)
+  if not n then
+   return c
+  end
+  v=ischar(n,font)
+  if not v then
+   return c
+  end
+ end
+ if halant[v] then
+  c=n
+  n=getnext(c)
+  if not n then
+   return c
+  end
+  v=ischar(n,font)
+  if not v then
+   return c
+  end
+  if v==c_zwnj or v==c_zwj then
+   c=n
+   n=getnext(c)
+   if not n then
+    return c
+   end
+   v=ischar(n,font)
+   if not v then
+    return c
+   end
+  end
+ else
+  local already_pre_mark   
+  local already_above_mark 
+  local already_below_mark 
+  local already_post_mark  
+		while dependent_vowel[v] do
+			local vowels=twopart_mark[v] or { v }
+			for k,v in next,vowels do
+				if pre_mark[v] and not already_pre_mark then
+					already_pre_mark=true
+				elseif above_mark[v] and not already_above_mark then
+					already_above_mark=true
+				elseif below_mark[v] and not already_below_mark then
+					already_below_mark=true
+				elseif post_mark[v] and not already_post_mark then
+					already_post_mark=true
+				else
+					return c
+				end
+			end
+   c=n
+   n=getnext(c)
+   if not n then
+    return c
+   end
+   v=ischar(n,font)
+   if not v then
+    return c
+   end
+  end
+  if nukta[v] then
+   c=n
+   n=getnext(c)
+   if not n then
+    return c
+   end
+   v=ischar(n,font)
+   if not v then
+    return c
+   end
+  end
+  if halant[v] then
+   c=n
+   n=getnext(c)
+   if not n then
+    return c
+   end
+   v=ischar(n,font)
+   if not v then
+    return c
+   end
+  end
+ end
+ if vowel_modifier[v] then
+  c=n
+  n=getnext(c)
+  if not n then
+   return c
+  end
+  v=ischar(n,font)
+  if not v then
+   return c
+  end
+ end
+ if stress_tone_mark[v] then
+  c=n
+  n=getnext(c)
+  if not n then
+   return c
+  end
+  v=ischar(n,font)
+  if not v then
+   return c
+  end
+ end
+ if stress_tone_mark[v] then
+  return n
+ else
+  return c
+ end
+end
+local function method_one(head,font,attr)
+ local current=head
+ local start=true
+ local done=false
+ local nbspaces=0
+ local syllabe=0
+ while current do
+  local char=ischar(current,font)
+  if char then
+   done=true
+   local syllablestart=current
+   local syllableend=nil
+   local c=current
+   local n=getnext(c)
+   local first=char
+   if n and ra[first] then
+    local second=ischar(n,font)
+    if second and halant[second] then
+     local n=getnext(n)
+     if n then
+      local third=ischar(n,font)
+      if third then
+       c=n
+       first=third
+      end
+     end
+    end
+   end
+   local standalone=first==c_nbsp
+   if standalone then
+    local prev=getprev(current)
+    if prev then
+     local prevchar=ischar(prev,font)
+     if not prevchar then
+     elseif not separator[prevchar] then
+     else
+      standalone=false
+     end
+    else
+    end
+   end
+   if standalone then
+    local syllableend=analyze_next_chars_one(c,font,2)
+    current=getnext(syllableend)
+    if syllablestart~=syllableend then
+     head,current,nbspaces=reorder_one(head,syllablestart,syllableend,font,attr,nbspaces)
+     current=getnext(current)
+    end
+   else
+    if consonant[char] then
+     local prevc=true
+     while prevc do
+      prevc=false
+      local n=getnext(current)
+      if not n then
+       break
+      end
+      local v=ischar(n,font)
+      if not v then
+       break
+      end
+      if nukta[v] then
+       n=getnext(n)
+       if not n then
+        break
+       end
+       v=ischar(n,font)
+       if not v then
+        break
+       end
+      end
+      if halant[v] then
+       n=getnext(n)
+       if not n then
+        break
+       end
+       v=ischar(n,font)
+       if not v then
+        break
+       end
+       if v==c_zwnj or v==c_zwj then
+        n=getnext(n)
+        if not n then
+         break
+        end
+        v=ischar(n,font)
+        if not v then
+         break
+        end
+       end
+       if consonant[v] then
+        prevc=true
+        current=n
+       end
+      end
+     end
+     local n=getnext(current)
+     if n then
+      local v=ischar(n,font)
+      if v and nukta[v] then
+       current=n
+       n=getnext(current)
+      end
+     end
+     syllableend=current
+     current=n
+     if current then
+      local v=ischar(current,font)
+      if not v then
+      elseif halant[v] then
+       local n=getnext(current)
+       if n then
+        local v=ischar(n,font)
+        if v and zw_char[v] then
+         syllableend=n
+         current=getnext(n)
+        else
+         syllableend=current
+         current=n
+        end
+       else
+        syllableend=current
+        current=n
+       end
+      else
+       if dependent_vowel[v] then
+        syllableend=current
+        current=getnext(current)
+        v=ischar(current,font)
+       end
+       if v and vowel_modifier[v] then
+        syllableend=current
+        current=getnext(current)
+        v=ischar(current,font)
+       end
+       if v and stress_tone_mark[v] then
+        syllableend=current
+        current=getnext(current)
+       end
+      end
+     end
+     if syllablestart~=syllableend then
+      if syllableend then
+       syllabe=syllabe+1
+       local c=syllablestart
+       local n=getnext(syllableend)
+       while c~=n do
+        setprop(c,a_syllabe,syllabe)
+        c=getnext(c)
+       end
+      end
+      head,current,nbspaces=reorder_one(head,syllablestart,syllableend,font,attr,nbspaces)
+      current=getnext(current)
+     end
+    elseif independent_vowel[char] then
+     syllableend=current
+     current=getnext(current)
+     if current then
+      local v=ischar(current,font)
+      if v then
+       if vowel_modifier[v] then
+        syllableend=current
+        current=getnext(current)
+        v=ischar(current,font)
+       end
+       if v and stress_tone_mark[v] then
+        syllableend=current
+        current=getnext(current)
+       end
+      end
+     end
+    else
+     if show_syntax_errors then
+      local mark=mark_four[char]
+      if mark then
+       head,current=inject_syntax_error(head,current,char)
+      end
+     end
+     current=getnext(current)
+    end
+   end
+  else
+   current=getnext(current)
+  end
+  start=false
+ end
+ if nbspaces>0 then
+  head=replace_all_nbsp(head)
+ end
+ current=head
+ local n=0
+ while current do
+  local char=ischar(current,font)
+  if char then
+			if n==0 and not getprop(current,a_state) then
+				setprop(current,a_state,s_init)
+			end
+			n=n+1
+		else
+			n=0
+		end
+		current=getnext(current)
+	end
+ return head,done
+end
+local function method_two(head,font,attr)
+ local current=head
+ local start=true
+ local done=false
+ local syllabe=0
+ local nbspaces=0
+ while current do
+  local syllablestart=nil
+  local syllableend=nil
+  local char=ischar(current,font)
+  if char then
+   done=true
+   syllablestart=current
+   local c=current
+   local n=getnext(current)
+   if n and ra[char] then
+    local nextchar=ischar(n,font)
+    if nextchar and halant[nextchar] then
+     local n=getnext(n)
+     if n then
+      local nextnextchar=ischar(n,font)
+      if nextnextchar then
+       c=n
+       char=nextnextchar
+      end
+     end
+    end
+   end
+   if independent_vowel[char] then
+    current=analyze_next_chars_one(c,font,1)
+    syllableend=current
+   else
+    local standalone=char==c_nbsp
+    if standalone then
+     nbspaces=nbspaces+1
+     local p=getprev(current)
+     if not p then
+     elseif ischar(p,font) then
+     elseif not separator[getchar(p)] then
+     else
+      standalone=false
+     end
+    end
+    if standalone then
+     current=analyze_next_chars_one(c,font,2)
+     syllableend=current
+    elseif consonant[getchar(current)] then
+     current=analyze_next_chars_two(current,font) 
+     syllableend=current
+    end
+   end
+  end
+  if syllableend then
+   syllabe=syllabe+1
+   local c=syllablestart
+   local n=getnext(syllableend)
+   while c~=n do
+    setprop(c,a_syllabe,syllabe)
+    c=getnext(c)
+   end
+  end
+  if syllableend and syllablestart~=syllableend then
+   head,current,nbspaces=reorder_two(head,syllablestart,syllableend,font,attr,nbspaces)
+  end
+  if not syllableend and show_syntax_errors then
+   local char=ischar(current,font)
+   if char and not getprop(current,a_state) then 
+    local mark=mark_four[char]
+    if mark then
+     head,current=inject_syntax_error(head,current,char)
+    end
+   end
+  end
+  start=false
+  current=getnext(current)
+ end
+ if nbspaces>0 then
+  head=replace_all_nbsp(head)
+ end
+ current=head
+ local n=0
+ while current do
+  local char=ischar(current,font)
+  if char then
+			if n==0 and not getprop(current,a_state) then	
+				setprop(current,a_state,s_init)
+			end
+			n=n+1
+		else
+			n=0
+		end
+		current=getnext(current)
+	end
+ return head,done
+end
+for i=1,nofscripts do
+ methods[scripts_one[i]]=method_one
+ methods[scripts_two[i]]=method_two
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-ocl']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local tostring,tonumber,next=tostring,tonumber,next
+local round,max=math.round,math.round
+local sortedkeys,sortedhash=table.sortedkeys,table.sortedhash
+local setmetatableindex=table.setmetatableindex
+local formatters=string.formatters
+local tounicode=fonts.mappings.tounicode
+local helpers=fonts.helpers
+local charcommand=helpers.commands.char
+local rightcommand=helpers.commands.right
+local leftcommand=helpers.commands.left
+local downcommand=helpers.commands.down
+local otf=fonts.handlers.otf
+local f_color=formatters["%.3f %.3f %.3f rg"]
+local f_gray=formatters["%.3f g"]
+if context then
+
+--removed
+
+else
+ local tounicode=fonts.mappings.tounicode16
+ function otf.getactualtext(s)
+  return
+   "/Span << /ActualText <feff"..s.."> >> BDC",
+   "EMC"
+ end
+end
+local sharedpalettes={}
+local hash=setmetatableindex(function(t,k)
+ local v={ "pdf","direct",k }
+ t[k]=v
+ return v
+end)
+if context then
+
+--removed
+
+else 
+ function otf.registerpalette(name,values)
+  sharedpalettes[name]=values
+  for i=1,#values do
+   local v=values[i]
+   if v then
+    values[i]=hash[f_color(
+     max(round((v.r or 0)*255),255)/255,
+     max(round((v.g or 0)*255),255)/255,
+     max(round((v.b or 0)*255),255)/255
+    )]
+   end
+  end
+ end
+end
+local function convert(t,k)
+ local v={}
+ for i=1,#k do
+  local p=k[i]
+  local r,g,b=p[1],p[2],p[3]
+  if r==g and g==b then
+   v[i]=hash[f_gray(r/255)]
+  else
+   v[i]=hash[f_color(r/255,g/255,b/255)]
+  end
+ end
+ t[k]=v
+ return v
+end
+local start={ "pdf","mode","font" }
+local push={ "pdf","page","q" }
+local pop={ "pdf","page","Q" }
+local function initialize(tfmdata,kind,value)
+ if value then
+  local resources=tfmdata.resources
+  local palettes=resources.colorpalettes
+  if palettes then
+   local converted=resources.converted
+   if not converted then
+    converted=setmetatableindex(convert)
+    resources.converted=converted
+   end
+   local colorvalues=sharedpalettes[value]
+   local default=false 
+   if colorvalues then
+    default=colorvalues[#colorvalues]
+   else
+    colorvalues=converted[palettes[tonumber(value) or 1] or palettes[1]] or {}
+   end
+   local classes=#colorvalues
+   if classes==0 then
+    return
+   end
+   local characters=tfmdata.characters
+   local descriptions=tfmdata.descriptions
+   local properties=tfmdata.properties
+   properties.virtualized=true
+   tfmdata.fonts={
+    { id=0 }
+   }
+   local getactualtext=otf.getactualtext
+   local b,e=getactualtext(tounicode(0xFFFD))
+   local actualb={ "pdf","page",b } 
+   local actuale={ "pdf","page",e }
+   for unicode,character in next,characters do
+    local description=descriptions[unicode]
+    if description then
+     local colorlist=description.colors
+     if colorlist then
+      local u=description.unicode or characters[unicode].unicode
+      local w=character.width or 0
+      local s=#colorlist
+      local goback=w~=0 and leftcommand[w] or nil 
+      local t={
+       start,
+       not u and actualb or { "pdf","page",(getactualtext(tounicode(u))) }
+      }
+      local n=2
+      local l=nil
+      local f=false
+      for i=1,s do
+       local entry=colorlist[i]
+       local v=colorvalues[entry.class] or default
+       if v and l~=v then
+        if f then
+         n=n+1 t[n]=pop
+        end
+        n=n+1 t[n]=push
+        f=true
+        n=n+1 t[n]=v
+        l=v
+       else
+        if f then
+         n=n+1 t[n]=pop
+        end
+        f=false
+        l=nil
+       end
+       n=n+1 t[n]=charcommand[entry.slot]
+       if s>1 and i<s and goback then
+        n=n+1 t[n]=goback
+       end
+      end
+      if f then
+       n=n+1 t[n]=pop
+      end
+      n=n+1 t[n]=actuale
+      character.commands=t
+     end
+    end
+   end
+  end
+ end
+end
+fonts.handlers.otf.features.register {
+ name="colr",
+ description="color glyphs",
+ manipulators={
+  base=initialize,
+  node=initialize,
+ }
+}
+do
+ local nofstreams=0
+ local f_name=formatters[ [[pdf-glyph-%05i]] ]
+ local f_used=context and formatters[ [[original:///%s]] ] or formatters[ [[%s]] ]
+ local hashed={}
+ local cache={}
+ local openpdf=pdfe.new
+ function otf.storepdfdata(pdf)
+  local done=hashed[pdf]
+  if not done then
+   nofstreams=nofstreams+1
+   local f=f_name(nofstreams)
+   local n=openpdf(pdf,#pdf,f)
+   done=f_used(n)
+   hashed[pdf]=done
+  end
+  return done
+ end
+end
+local function pdftovirtual(tfmdata,pdfshapes,kind) 
+ if not tfmdata or not pdfshapes or not kind then
+  return
+ end
+ local characters=tfmdata.characters
+ local properties=tfmdata.properties
+ local parameters=tfmdata.parameters
+ local hfactor=parameters.hfactor
+ properties.virtualized=true
+ tfmdata.fonts={
+  { id=0 } 
+ }
+ local getactualtext=otf.getactualtext
+ local storepdfdata=otf.storepdfdata
+ local b,e=getactualtext(tounicode(0xFFFD))
+ local actualb={ "pdf","page",b } 
+ local actuale={ "pdf","page",e }
+ local vfimage=lpdf and lpdf.vfimage or function(wd,ht,dp,data,name)
+  local name=storepdfdata(data)
+  return { "image",{ filename=name,width=wd,height=ht,depth=dp } }
+ end
+ for unicode,character in sortedhash(characters) do  
+  local index=character.index
+  if index then
+   local pdf=pdfshapes[index]
+   local typ=type(pdf)
+   local data=nil
+   local dx=nil
+   local dy=nil
+   if typ=="table" then
+    data=pdf.data
+    dx=pdf.dx or 0
+    dy=pdf.dy or 0
+   elseif typ=="string" then
+    data=pdf
+    dx=0
+    dy=0
+   end
+   if data then
+    local bt=unicode and getactualtext(unicode)
+    local wd=character.width  or 0
+    local ht=character.height or 0
+    local dp=character.depth  or 0
+    character.commands={
+     not unicode and actualb or { "pdf","page",(getactualtext(unicode)) },
+     downcommand[dp+dy*hfactor],
+     rightcommand[dx*hfactor],
+     vfimage(wd,ht,dp,data,name),
+     actuale,
+    }
+    character[kind]=true
+   end
+  end
+ end
+end
+local otfsvg=otf.svg or {}
+otf.svg=otfsvg
+otf.svgenabled=true
+do
+ local report_svg=logs.reporter("fonts","svg conversion")
+ local loaddata=io.loaddata
+ local savedata=io.savedata
+ local remove=os.remove
+ if context and xml.convert then
+  local xmlconvert=xml.convert
+  local xmlfirst=xml.first
+  function otfsvg.filterglyph(entry,index)
+   local svg=xmlconvert(entry.data)
+   local root=svg and xmlfirst(svg,"/svg[@id='glyph"..index.."']")
+   local data=root and tostring(root)
+   return data
+  end
+ else
+  function otfsvg.filterglyph(entry,index) 
+   return entry.data
+  end
+ end
+ local runner=sandbox and sandbox.registerrunner {
+  name="otfsvg",
+  program="inkscape",
+  method="pipeto",
+  template="--shell > temp-otf-svg-shape.log",
+  reporter=report_svg,
+ }
+ if not runner then
+  runner=function()
+   return io.open("inkscape --shell > temp-otf-svg-shape.log","w")
+  end
+ end
+ function otfsvg.topdf(svgshapes)
+  local pdfshapes={}
+  local inkscape=runner()
+  if inkscape then
+   local nofshapes=#svgshapes
+   local f_svgfile=formatters["temp-otf-svg-shape-%i.svg"]
+   local f_pdffile=formatters["temp-otf-svg-shape-%i.pdf"]
+   local f_convert=formatters["%s --export-pdf=%s\n"]
+   local filterglyph=otfsvg.filterglyph
+   local nofdone=0
+   report_svg("processing %i svg containers",nofshapes)
+   statistics.starttiming()
+   for i=1,nofshapes do
+    local entry=svgshapes[i]
+    for index=entry.first,entry.last do
+     local data=filterglyph(entry,index)
+     if data and data~="" then
+      local svgfile=f_svgfile(index)
+      local pdffile=f_pdffile(index)
+      savedata(svgfile,data)
+      inkscape:write(f_convert(svgfile,pdffile))
+      pdfshapes[index]=true
+      nofdone=nofdone+1
+      if nofdone%100==0 then
+       report_svg("%i shapes processed",nofdone)
+      end
+     end
+    end
+   end
+   inkscape:write("quit\n")
+   inkscape:close()
+   report_svg("processing %i pdf results",nofshapes)
+   for index in next,pdfshapes do
+    local svgfile=f_svgfile(index)
+    local pdffile=f_pdffile(index)
+    pdfshapes[index]=loaddata(pdffile)
+    remove(svgfile)
+    remove(pdffile)
+   end
+   statistics.stoptiming()
+   if statistics.elapsedseconds then
+    report_svg("svg conversion time %s",statistics.elapsedseconds() or "-")
+   end
+  end
+  return pdfshapes
+ end
+end
+local function initializesvg(tfmdata,kind,value) 
+ if value and otf.svgenabled then
+  local svg=tfmdata.properties.svg
+  local hash=svg and svg.hash
+  local timestamp=svg and svg.timestamp
+  if not hash then
+   return
+  end
+  local pdffile=containers.read(otf.pdfcache,hash)
+  local pdfshapes=pdffile and pdffile.pdfshapes
+  if not pdfshapes or pdffile.timestamp~=timestamp then
+   local svgfile=containers.read(otf.svgcache,hash)
+   local svgshapes=svgfile and svgfile.svgshapes
+   pdfshapes=svgshapes and otfsvg.topdf(svgshapes) or {}
+   containers.write(otf.pdfcache,hash,{
+    pdfshapes=pdfshapes,
+    timestamp=timestamp,
+   })
+  end
+  pdftovirtual(tfmdata,pdfshapes,"svg")
+ end
+end
+fonts.handlers.otf.features.register {
+ name="svg",
+ description="svg glyphs",
+ manipulators={
+  base=initializesvg,
+  node=initializesvg,
+ }
+}
+local otfpng=otf.png or {}
+otf.png=otfpng
+otf.pngenabled=true
+do
+ local report_png=logs.reporter("fonts","png conversion")
+ local loaddata=io.loaddata
+ local savedata=io.savedata
+ local remove=os.remove
+ local runner=sandbox and sandbox.registerrunner {
+  name="otfpng",
+  program="gm",
+  template="convert -quality 100 temp-otf-png-shape.png temp-otf-png-shape.pdf > temp-otf-svg-shape.log",
+ }
+ if not runner then
+  runner=function()
+   return os.execute("gm convert -quality 100 temp-otf-png-shape.png temp-otf-png-shape.pdf > temp-otf-svg-shape.log")
+  end
+ end
+ function otfpng.topdf(pngshapes)
+  local pdfshapes={}
+  local pngfile="temp-otf-png-shape.png"
+  local pdffile="temp-otf-png-shape.pdf"
+  local nofdone=0
+  local indices=sortedkeys(pngshapes) 
+  local nofindices=#indices
+  report_png("processing %i png containers",nofindices)
+  statistics.starttiming()
+  for i=1,nofindices do
+   local index=indices[i]
+   local entry=pngshapes[index]
+   local data=entry.data 
+   local x=entry.x
+   local y=entry.y
+   savedata(pngfile,data)
+   runner()
+   pdfshapes[index]={
+    x=x~=0 and x or nil,
+    y=y~=0 and y or nil,
+    data=loaddata(pdffile),
+   }
+   nofdone=nofdone+1
+   if nofdone%100==0 then
+    report_png("%i shapes processed",nofdone)
+   end
+  end
+  report_png("processing %i pdf results",nofindices)
+  remove(pngfile)
+  remove(pdffile)
+  statistics.stoptiming()
+  if statistics.elapsedseconds then
+   report_png("png conversion time %s",statistics.elapsedseconds() or "-")
+  end
+  return pdfshapes
+ end
+end
+local function initializepng(tfmdata,kind,value) 
+ if value and otf.pngenabled then
+  local png=tfmdata.properties.png
+  local hash=png and png.hash
+  local timestamp=png and png.timestamp
+  if not hash then
+   return
+  end
+  local pdffile=containers.read(otf.pdfcache,hash)
+  local pdfshapes=pdffile and pdffile.pdfshapes
+  if not pdfshapes or pdffile.timestamp~=timestamp then
+   local pngfile=containers.read(otf.pngcache,hash)
+   local pngshapes=pngfile and pngfile.pngshapes
+   pdfshapes=pngshapes and otfpng.topdf(pngshapes) or {}
+   containers.write(otf.pdfcache,hash,{
+    pdfshapes=pdfshapes,
+    timestamp=timestamp,
+   })
+  end
+  pdftovirtual(tfmdata,pdfshapes,"png")
+ end
+end
+fonts.handlers.otf.features.register {
+ name="sbix",
+ description="sbix glyphs",
+ manipulators={
+  base=initializepng,
+  node=initializepng,
+ }
+}
+fonts.handlers.otf.features.register {
+ name="cblc",
+ description="cblc glyphs",
+ manipulators={
+  base=initializepng,
+  node=initializepng,
+ }
+}
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-otc']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local insert,sortedkeys,sortedhash,tohash=table.insert,table.sortedkeys,table.sortedhash,table.tohash
+local type,next,tonumber=type,next,tonumber
+local lpegmatch=lpeg.match
+local utfbyte,utflen=utf.byte,utf.len
+local sortedhash=table.sortedhash
+local trace_loading=false  trackers.register("otf.loading",function(v) trace_loading=v end)
+local report_otf=logs.reporter("fonts","otf loading")
+local fonts=fonts
+local otf=fonts.handlers.otf
+local registerotffeature=otf.features.register
+local setmetatableindex=table.setmetatableindex
+local checkmerge=fonts.helpers.checkmerge
+local checkflags=fonts.helpers.checkflags
+local checksteps=fonts.helpers.checksteps
+local normalized={
+ substitution="substitution",
+ single="substitution",
+ ligature="ligature",
+ alternate="alternate",
+ multiple="multiple",
+ kern="kern",
+ pair="pair",
+ single="single",
+ chainsubstitution="chainsubstitution",
+ chainposition="chainposition",
+}
+local types={
+ substitution="gsub_single",
+ ligature="gsub_ligature",
+ alternate="gsub_alternate",
+ multiple="gsub_multiple",
+ kern="gpos_pair",
+ pair="gpos_pair",
+ single="gpos_single",
+ chainsubstitution="gsub_contextchain",
+ chainposition="gpos_contextchain",
+}
+local names={
+ gsub_single="gsub",
+ gsub_multiple="gsub",
+ gsub_alternate="gsub",
+ gsub_ligature="gsub",
+ gsub_context="gsub",
+ gsub_contextchain="gsub",
+ gsub_reversecontextchain="gsub",
+ gpos_single="gpos",
+ gpos_pair="gpos",
+ gpos_cursive="gpos",
+ gpos_mark2base="gpos",
+ gpos_mark2ligature="gpos",
+ gpos_mark2mark="gpos",
+ gpos_context="gpos",
+ gpos_contextchain="gpos",
+}
+setmetatableindex(types,function(t,k) t[k]=k return k end) 
+local everywhere={ ["*"]={ ["*"]=true } } 
+local noflags={ false,false,false,false }
+local function getrange(sequences,category)
+ local count=#sequences
+ local first=nil
+ local last=nil
+ for i=1,count do
+  local t=sequences[i].type
+  if t and names[t]==category then
+   if not first then
+    first=i
+   end
+   last=i
+  end
+ end
+ return first or 1,last or count
+end
+local function validspecification(specification,name)
+ local dataset=specification.dataset
+ if dataset then
+ elseif specification[1] then
+  dataset=specification
+  specification={ dataset=dataset }
+ else
+  dataset={ { data=specification.data } }
+  specification.data=nil
+  specification.dataset=dataset
+ end
+ local first=dataset[1]
+ if first then
+  first=first.data
+ end
+ if not first then
+  report_otf("invalid feature specification, no dataset")
+  return
+ end
+ if type(name)~="string" then
+  name=specification.name or first.name
+ end
+ if type(name)~="string" then
+  report_otf("invalid feature specification, no name")
+  return
+ end
+ local n=#dataset
+ if n>0 then
+  for i=1,n do
+   setmetatableindex(dataset[i],specification)
+  end
+  return specification,name
+ end
+end
+local function addfeature(data,feature,specifications)
+ if not specifications then
+  report_otf("missing specification")
+  return
+ end
+ local descriptions=data.descriptions
+ local resources=data.resources
+ local features=resources.features
+ local sequences=resources.sequences
+ if not features or not sequences then
+  report_otf("missing specification")
+  return
+ end
+ local alreadydone=resources.alreadydone
+ if not alreadydone then
+  alreadydone={}
+  resources.alreadydone=alreadydone
+ end
+ if alreadydone[specifications] then
+  return
+ else
+  alreadydone[specifications]=true
+ end
+ local fontfeatures=resources.features or everywhere
+ local unicodes=resources.unicodes
+ local splitter=lpeg.splitter(" ",unicodes)
+ local done=0
+ local skip=0
+ local aglunicodes=false
+ local specifications=validspecification(specifications,feature)
+ if not specifications then
+  return
+ end
+ local p=lpeg.P("P")*(lpeg.patterns.hexdigit^1/function(s) return tonumber(s,16) end)*lpeg.P(-1)
+ local function tounicode(code)
+  if not code then
+   return
+  end
+  if type(code)=="number" then
+   return code
+  end
+  local u=unicodes[code]
+  if u then
+   return u
+  end
+  if utflen(code)==1 then
+   u=utfbyte(code)
+   if u then
+    return u
+   end
+  end
+  local u=lpegmatch(p,code)
+  if u then
+   return u
+  end
+  if not aglunicodes then
+   aglunicodes=fonts.encodings.agl.unicodes 
+  end
+  local u=aglunicodes[code]
+  if u then
+   return u
+  end
+ end
+ local coverup=otf.coverup
+ local coveractions=coverup.actions
+ local stepkey=coverup.stepkey
+ local register=coverup.register
+ local function prepare_substitution(list,featuretype,nocheck)
+  local coverage={}
+  local cover=coveractions[featuretype]
+  for code,replacement in next,list do
+   local unicode=tounicode(code)
+   local description=descriptions[unicode]
+   if not nocheck and not description then
+    skip=skip+1
+   else
+    if type(replacement)=="table" then
+     replacement=replacement[1]
+    end
+    replacement=tounicode(replacement)
+    if replacement and descriptions[replacement] then
+     cover(coverage,unicode,replacement)
+     done=done+1
+    else
+     skip=skip+1
+    end
+   end
+  end
+  return coverage
+ end
+ local function prepare_alternate(list,featuretype,nocheck)
+  local coverage={}
+  local cover=coveractions[featuretype]
+  for code,replacement in next,list do
+   local unicode=tounicode(code)
+   local description=descriptions[unicode]
+   if not nocheck and not description then
+    skip=skip+1
+   elseif type(replacement)=="table" then
+    local r={}
+    for i=1,#replacement do
+     local u=tounicode(replacement[i])
+     r[i]=(nocheck or descriptions[u]) and u or unicode
+    end
+    cover(coverage,unicode,r)
+    done=done+1
+   else
+    local u=tounicode(replacement)
+    if u then
+     cover(coverage,unicode,{ u })
+     done=done+1
+    else
+     skip=skip+1
+    end
+   end
+  end
+  return coverage
+ end
+ local function prepare_multiple(list,featuretype,nocheck)
+  local coverage={}
+  local cover=coveractions[featuretype]
+  for code,replacement in next,list do
+   local unicode=tounicode(code)
+   local description=descriptions[unicode]
+   if not nocheck and not description then
+    skip=skip+1
+   elseif type(replacement)=="table" then
+    local r={}
+    local n=0
+    for i=1,#replacement do
+     local u=tounicode(replacement[i])
+     if nocheck or descriptions[u] then
+      n=n+1
+      r[n]=u
+     end
+    end
+    if n>0 then
+     cover(coverage,unicode,r)
+     done=done+1
+    else
+     skip=skip+1
+    end
+   else
+    local u=tounicode(replacement)
+    if u then
+     cover(coverage,unicode,{ u })
+     done=done+1
+    else
+     skip=skip+1
+    end
+   end
+  end
+  return coverage
+ end
+ local function prepare_ligature(list,featuretype,nocheck)
+  local coverage={}
+  local cover=coveractions[featuretype]
+  for code,ligature in next,list do
+   local unicode=tounicode(code)
+   local description=descriptions[unicode]
+   if not nocheck and not description then
+    skip=skip+1
+   else
+    if type(ligature)=="string" then
+     ligature={ lpegmatch(splitter,ligature) }
+    end
+    local present=true
+    for i=1,#ligature do
+     local l=ligature[i]
+     local u=tounicode(l)
+     if nocheck or descriptions[u] then
+      ligature[i]=u
+     else
+      present=false
+      break
+     end
+    end
+    if present then
+     cover(coverage,unicode,ligature)
+     done=done+1
+    else
+     skip=skip+1
+    end
+   end
+  end
+  return coverage
+ end
+ local function resetspacekerns()
+  data.properties.hasspacekerns=true
+  data.resources .spacekerns=nil
+ end
+ local function prepare_kern(list,featuretype)
+  local coverage={}
+  local cover=coveractions[featuretype]
+  local isspace=false
+  for code,replacement in next,list do
+   local unicode=tounicode(code)
+   local description=descriptions[unicode]
+   if description and type(replacement)=="table" then
+    local r={}
+    for k,v in next,replacement do
+     local u=tounicode(k)
+     if u then
+      r[u]=v
+      if u==32 then
+       isspace=true
+      end
+     end
+    end
+    if next(r) then
+     cover(coverage,unicode,r)
+     done=done+1
+     if unicode==32 then
+      isspace=true
+     end
+    else
+     skip=skip+1
+    end
+   else
+    skip=skip+1
+   end
+  end
+  if isspace then
+   resetspacekerns()
+  end
+  return coverage
+ end
+ local function prepare_pair(list,featuretype)
+  local coverage={}
+  local cover=coveractions[featuretype]
+  if cover then
+   for code,replacement in next,list do
+    local unicode=tounicode(code)
+    local description=descriptions[unicode]
+    if description and type(replacement)=="table" then
+     local r={}
+     for k,v in next,replacement do
+      local u=tounicode(k)
+      if u then
+       r[u]=v
+       if u==32 then
+        isspace=true
+       end
+      end
+     end
+     if next(r) then
+      cover(coverage,unicode,r)
+      done=done+1
+      if unicode==32 then
+       isspace=true
+      end
+     else
+      skip=skip+1
+     end
+    else
+     skip=skip+1
+    end
+   end
+   if isspace then
+    resetspacekerns()
+   end
+  else
+   report_otf("unknown cover type %a",featuretype)
+  end
+  return coverage
+ end
+ local prepare_single=prepare_pair 
+ local function prepare_chain(list,featuretype,sublookups)
+  local rules=list.rules
+  local coverage={}
+  if rules then
+   local rulehash={}
+   local rulesize=0
+   local lookuptype=types[featuretype]
+   for nofrules=1,#rules do
+    local rule=rules[nofrules]
+    local current=rule.current
+    local before=rule.before
+    local after=rule.after
+    local replacements=rule.replacements or false
+    local sequence={}
+    local nofsequences=0
+    if before then
+     for n=1,#before do
+      nofsequences=nofsequences+1
+      sequence[nofsequences]=before[n]
+     end
+    end
+    local start=nofsequences+1
+    for n=1,#current do
+     nofsequences=nofsequences+1
+     sequence[nofsequences]=current[n]
+    end
+    local stop=nofsequences
+    if after then
+     for n=1,#after do
+      nofsequences=nofsequences+1
+      sequence[nofsequences]=after[n]
+     end
+    end
+    local lookups=rule.lookups or false
+    local subtype=nil
+    if lookups and sublookups then
+     for k,v in sortedhash(lookups) do
+      local t=type(v)
+      if t=="table" then
+       for i=1,#v do
+        local vi=v[i]
+        if type(vi)~="table" then
+         v[i]={ vi }
+        end
+       end
+      elseif t=="number" then
+       local lookup=sublookups[v]
+       if lookup then
+        lookups[k]={ lookup }
+        if not subtype then
+         subtype=lookup.type
+        end
+       elseif v==0 then
+        lookups[k]={ { type="gsub_remove" } }
+       else
+        lookups[k]=false 
+       end
+      else
+       lookups[k]=false 
+      end
+     end
+    end
+    if nofsequences>0 then
+     local hashed={}
+     for i=1,nofsequences do
+      local t={}
+      local s=sequence[i]
+      for i=1,#s do
+       local u=tounicode(s[i])
+       if u then
+        t[u]=true
+       end
+      end
+      hashed[i]=t
+     end
+     sequence=hashed
+     rulesize=rulesize+1
+     rulehash[rulesize]={
+      nofrules,
+      lookuptype,
+      sequence,
+      start,
+      stop,
+      lookups,
+      replacements,
+      subtype,
+     }
+     for unic in sortedhash(sequence[start]) do
+      local cu=coverage[unic]
+      if not cu then
+       coverage[unic]=rulehash 
+      end
+     end
+     sequence.n=nofsequences
+    end
+   end
+   rulehash.n=rulesize
+  end
+  return coverage
+ end
+ local dataset=specifications.dataset
+ local function report(name,category,position,first,last,sequences)
+  report_otf("injecting name %a of category %a at position %i in [%i,%i] of [%i,%i]",
+   name,category,position,first,last,1,#sequences)
+ end
+ local function inject(specification,sequences,sequence,first,last,category,name)
+  local position=specification.position or false
+  if not position then
+   position=specification.prepend
+   if position==true then
+    if trace_loading then
+     report(name,category,first,first,last,sequences)
+    end
+    insert(sequences,first,sequence)
+    return
+   end
+  end
+  if not position then
+   position=specification.append
+   if position==true then
+    if trace_loading then
+     report(name,category,last+1,first,last,sequences)
+    end
+    insert(sequences,last+1,sequence)
+    return
+   end
+  end
+  local kind=type(position)
+  if kind=="string" then
+   local index=false
+   for i=first,last do
+    local s=sequences[i]
+    local f=s.features
+    if f then
+     for k in sortedhash(f) do 
+      if k==position then
+       index=i
+       break
+      end
+     end
+     if index then
+      break
+     end
+    end
+   end
+   if index then
+    position=index
+   else
+    position=last+1
+   end
+  elseif kind=="number" then
+   if position<0 then
+    position=last-position+1
+   end
+   if position>last then
+    position=last+1
+   elseif position<first then
+    position=first
+   end
+  else
+   position=last+1
+  end
+  if trace_loading then
+   report(name,category,position,first,last,sequences)
+  end
+  insert(sequences,position,sequence)
+ end
+ for s=1,#dataset do
+  local specification=dataset[s]
+  local valid=specification.valid 
+  local feature=specification.name or feature
+  if not feature or feature=="" then
+   report_otf("no valid name given for extra feature")
+  elseif not valid or valid(data,specification,feature) then 
+   local initialize=specification.initialize
+   if initialize then
+    specification.initialize=initialize(specification,data) and initialize or nil
+   end
+   local askedfeatures=specification.features or everywhere
+   local askedsteps=specification.steps or specification.subtables or { specification.data } or {}
+   local featuretype=normalized[specification.type or "substitution"] or "substitution"
+   local featureflags=specification.flags or noflags
+   local nocheck=specification.nocheck
+   local futuresteps=specification.futuresteps
+   local featureorder=specification.order or { feature }
+   local featurechain=(featuretype=="chainsubstitution" or featuretype=="chainposition") and 1 or 0
+   local nofsteps=0
+   local steps={}
+   local sublookups=specification.lookups
+   local category=nil
+   checkflags(specification,resources)
+   if sublookups then
+    local s={}
+    for i=1,#sublookups do
+     local specification=sublookups[i]
+     local askedsteps=specification.steps or specification.subtables or { specification.data } or {}
+     local featuretype=normalized[specification.type or "substitution"] or "substitution"
+     local featureflags=specification.flags or noflags
+     local nofsteps=0
+     local steps={}
+     for i=1,#askedsteps do
+      local list=askedsteps[i]
+      local coverage=nil
+      local format=nil
+      if featuretype=="substitution" then
+       coverage=prepare_substitution(list,featuretype,nocheck)
+      elseif featuretype=="ligature" then
+       coverage=prepare_ligature(list,featuretype,nocheck)
+      elseif featuretype=="alternate" then
+       coverage=prepare_alternate(list,featuretype,nocheck)
+      elseif featuretype=="multiple" then
+       coverage=prepare_multiple(list,featuretype,nocheck)
+      elseif featuretype=="kern" or featuretype=="move" then
+       format=featuretype
+       coverage=prepare_kern(list,featuretype)
+      elseif featuretype=="pair" then
+       format="pair"
+       coverage=prepare_pair(list,featuretype)
+      elseif featuretype=="single" then
+       format="single"
+       coverage=prepare_single(list,featuretype)
+      end
+      if coverage and next(coverage) then
+       nofsteps=nofsteps+1
+       steps[nofsteps]=register(coverage,featuretype,format,feature,nofsteps,descriptions,resources)
+      end
+     end
+     checkmerge(specification)
+     checksteps(specification)
+     s[i]={
+      [stepkey]=steps,
+      nofsteps=nofsteps,
+      flags=featureflags,
+      type=types[featuretype],
+     }
+    end
+    sublookups=s
+   end
+   for i=1,#askedsteps do
+    local list=askedsteps[i]
+    local coverage=nil
+    local format=nil
+    if featuretype=="substitution" then
+     category="gsub"
+     coverage=prepare_substitution(list,featuretype,nocheck)
+    elseif featuretype=="ligature" then
+     category="gsub"
+     coverage=prepare_ligature(list,featuretype,nocheck)
+    elseif featuretype=="alternate" then
+     category="gsub"
+     coverage=prepare_alternate(list,featuretype,nocheck)
+    elseif featuretype=="multiple" then
+     category="gsub"
+     coverage=prepare_multiple(list,featuretype,nocheck)
+    elseif featuretype=="kern" or featuretype=="move" then
+     category="gpos"
+     format=featuretype
+     coverage=prepare_kern(list,featuretype)
+    elseif featuretype=="pair" then
+     category="gpos"
+     format="pair"
+     coverage=prepare_pair(list,featuretype)
+    elseif featuretype=="single" then
+     category="gpos"
+     format="single"
+     coverage=prepare_single(list,featuretype)
+    elseif featuretype=="chainsubstitution" then
+     category="gsub"
+     coverage=prepare_chain(list,featuretype,sublookups)
+    elseif featuretype=="chainposition" then
+     category="gpos"
+     coverage=prepare_chain(list,featuretype,sublookups)
+    else
+     report_otf("not registering feature %a, unknown category",feature)
+     return
+    end
+    if coverage and next(coverage) then
+     nofsteps=nofsteps+1
+     steps[nofsteps]=register(coverage,featuretype,format,feature,nofsteps,descriptions,resources)
+    end
+   end
+   if nofsteps>0 then
+    for k,v in next,askedfeatures do
+     if v[1] then
+      askedfeatures[k]=tohash(v)
+     end
+    end
+    if featureflags[1] then featureflags[1]="mark" end
+    if featureflags[2] then featureflags[2]="ligature" end
+    if featureflags[3] then featureflags[3]="base" end
+    local steptype=types[featuretype]
+    local sequence={
+     chain=featurechain,
+     features={ [feature]=askedfeatures },
+     flags=featureflags,
+     name=feature,
+     order=featureorder,
+     [stepkey]=steps,
+     nofsteps=nofsteps,
+     type=steptype,
+    }
+    checkflags(sequence,resources)
+    checkmerge(sequence)
+    checksteps(sequence)
+    local first,last=getrange(sequences,category)
+    inject(specification,sequences,sequence,first,last,category,feature)
+    local features=fontfeatures[category]
+    if not features then
+     features={}
+     fontfeatures[category]=features
+    end
+    local k=features[feature]
+    if not k then
+     k={}
+     features[feature]=k
+    end
+    for script,languages in next,askedfeatures do
+     local kk=k[script]
+     if not kk then
+      kk={}
+      k[script]=kk
+     end
+     for language,value in next,languages do
+      kk[language]=value
+     end
+    end
+   end
+  end
+ end
+ if trace_loading then
+  report_otf("registering feature %a, affected glyphs %a, skipped glyphs %a",feature,done,skip)
+ end
+end
+otf.enhancers.addfeature=addfeature
+local extrafeatures={}
+local knownfeatures={}
+function otf.addfeature(name,specification)
+ if type(name)=="table" then
+  specification=name
+ end
+ if type(specification)~="table" then
+  report_otf("invalid feature specification, no valid table")
+  return
+ end
+ specification,name=validspecification(specification,name)
+ if name and specification then
+  local slot=knownfeatures[name]
+  if not slot then
+   slot=#extrafeatures+1
+   knownfeatures[name]=slot
+  elseif specification.overload==false then
+   slot=#extrafeatures+1
+   knownfeatures[name]=slot
+  else
+  end
+  specification.name=name 
+  extrafeatures[slot]=specification
+ end
+end
+local function enhance(data,filename,raw)
+ for slot=1,#extrafeatures do
+  local specification=extrafeatures[slot]
+  addfeature(data,specification.name,specification)
+ end
+end
+otf.enhancers.enhance=enhance
+otf.enhancers.register("check extra features",enhance)
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-onr']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local fonts,logs,trackers,resolvers=fonts,logs,trackers,resolvers
+local next,type,tonumber,rawget,rawset=next,type,tonumber,rawget,rawset
+local match,lower,gsub,strip,find=string.match,string.lower,string.gsub,string.strip,string.find
+local char,byte,sub=string.char,string.byte,string.sub
+local abs=math.abs
+local bxor,rshift=bit32.bxor,bit32.rshift
+local P,S,R,V,Cmt,C,Ct,Cs,Carg,Cf,Cg,Cc=lpeg.P,lpeg.S,lpeg.R,lpeg.V,lpeg.Cmt,lpeg.C,lpeg.Ct,lpeg.Cs,lpeg.Carg,lpeg.Cf,lpeg.Cg,lpeg.Cc
+local lpegmatch,patterns=lpeg.match,lpeg.patterns
+local trace_indexing=false  trackers.register("afm.indexing",function(v) trace_indexing=v end)
+local trace_loading=false  trackers.register("afm.loading",function(v) trace_loading=v end)
+local report_afm=logs.reporter("fonts","afm loading")
+local report_pfb=logs.reporter("fonts","pfb loading")
+local handlers=fonts.handlers
+local afm=handlers.afm or {}
+handlers.afm=afm
+local readers=afm.readers or {}
+afm.readers=readers
+afm.version=1.513
+local get_indexes,get_shapes
+do
+ local decrypt
+ do
+  local r,c1,c2,n=0,0,0,0
+  local function step(c)
+   local cipher=byte(c)
+   local plain=bxor(cipher,rshift(r,8))
+   r=((cipher+r)*c1+c2)%65536
+   return char(plain)
+  end
+  decrypt=function(binary,initial,seed)
+   r,c1,c2,n=initial,52845,22719,seed
+   binary=gsub(binary,".",step)
+   return sub(binary,n+1)
+  end
+ end
+ local charstrings=P("/CharStrings")
+ local subroutines=P("/Subrs")
+ local encoding=P("/Encoding")
+ local dup=P("dup")
+ local put=P("put")
+ local array=P("array")
+ local name=P("/")*C((R("az","AZ","09")+S("-_."))^1)
+ local digits=R("09")^1
+ local cardinal=digits/tonumber
+ local spaces=P(" ")^1
+ local spacing=patterns.whitespace^0
+ local routines,vector,chars,n,m
+ local initialize=function(str,position,size)
+  n=0
+  m=size
+  return position+1
+ end
+ local setroutine=function(str,position,index,size,filename)
+  if routines[index] then
+   return false
+  end
+  local forward=position+size
+  local stream=decrypt(sub(str,position+1,forward),4330,4)
+  routines[index]={ byte(stream,1,#stream) }
+  n=n+1
+  if n>=m then
+   return #str
+  end
+  return forward+1
+ end
+ local setvector=function(str,position,name,size,filename)
+  local forward=position+tonumber(size)
+  if n>=m then
+   return #str
+  elseif forward<#str then
+   if n==0 and name~=".notdef" then
+    report_pfb("reserving .notdef at index 0 in %a",filename) 
+    n=n+1
+   end
+   vector[n]=name
+   n=n+1
+   return forward
+  else
+   return #str
+  end
+ end
+ local setshapes=function(str,position,name,size,filename)
+  local forward=position+tonumber(size)
+  local stream=sub(str,position+1,forward)
+  if n>m then
+   return #str
+  elseif forward<#str then
+   if n==0 and name~=".notdef" then
+    report_pfb("reserving .notdef at index 0 in %a",filename) 
+    n=n+1
+   end
+   vector[n]=name
+   n=n+1
+   chars [n]=decrypt(stream,4330,4)
+   return forward
+  else
+   return #str
+  end
+ end
+ local p_rd=spacing*(P("RD")+P("-|"))
+ local p_np=spacing*(P("NP")+P("|"))
+ local p_nd=spacing*(P("ND")+P("|"))
+ local p_filterroutines=
+  (1-subroutines)^0*subroutines*spaces*Cmt(cardinal,initialize)*(Cmt(cardinal*spaces*cardinal*p_rd*Carg(1),setroutine)*p_np+(1-p_nd))^1
+ local p_filtershapes=
+  (1-charstrings)^0*charstrings*spaces*Cmt(cardinal,initialize)*(Cmt(name*spaces*cardinal*p_rd*Carg(1),setshapes)*p_nd+P(1))^1
+ local p_filternames=Ct (
+  (1-charstrings)^0*charstrings*spaces*Cmt(cardinal,initialize)*(Cmt(name*spaces*cardinal*Carg(1),setvector)+P(1))^1
+ )
+ local p_filterencoding=(1-encoding)^0*encoding*spaces*digits*spaces*array*(1-dup)^0*Cf(
+   Ct("")*Cg(spacing*dup*spaces*cardinal*spaces*name*spaces*put)^1
+,rawset)
+ local key=spacing*P("/")*R("az","AZ")
+ local str=spacing*Cs { (P("(")/"")*((1-P("\\(")-P("\\)")-S("()"))+V(1))^0*(P(")")/"") }
+ local num=spacing*(R("09")+S("+-."))^1/tonumber
+ local arr=spacing*Ct (S("[{")*(num)^0*spacing*S("]}"))
+ local boo=spacing*(P("true")*Cc(true)+P("false")*Cc(false))
+ local nam=spacing*P("/")*Cs(R("az","AZ")^1)
+ local p_filtermetadata=(
+  P("/")*Carg(1)*((
+   C("version")*str+C("Copyright")*str+C("Notice")*str+C("FullName")*str+C("FamilyName")*str+C("Weight")*str+C("ItalicAngle")*num+C("isFixedPitch")*boo+C("UnderlinePosition")*num+C("UnderlineThickness")*num+C("FontName")*nam+C("FontMatrix")*arr+C("FontBBox")*arr
+  ) )/function(t,k,v) t[lower(k)]=v end+P(1)
+ )^0*Carg(1)
+ local function loadpfbvector(filename,shapestoo,streams)
+  local data=io.loaddata(resolvers.findfile(filename))
+  if not data then
+   report_pfb("no data in %a",filename)
+   return
+  end
+  if not (find(data,"!PS-AdobeFont-",1,true) or find(data,"%!FontType1",1,true)) then
+   report_pfb("no font in %a",filename)
+   return
+  end
+  local ascii,binary=match(data,"(.*)eexec%s+......(.*)")
+  if not binary then
+   report_pfb("no binary data in %a",filename)
+   return
+  end
+  binary=decrypt(binary,55665,4)
+  local names={}
+  local encoding=lpegmatch(p_filterencoding,ascii)
+  local metadata=lpegmatch(p_filtermetadata,ascii,1,{})
+  local glyphs={}
+  routines,vector,chars={},{},{}
+  if shapestoo or streams then
+   lpegmatch(p_filterroutines,binary,1,filename)
+   lpegmatch(p_filtershapes,binary,1,filename)
+   local data={
+    dictionaries={
+     {
+      charstrings=chars,
+      charset=vector,
+      subroutines=routines,
+     }
+    },
+   }
+   fonts.handlers.otf.readers.parsecharstrings(false,data,glyphs,true,"cff",streams,true)
+  else
+   lpegmatch(p_filternames,binary,1,filename)
+  end
+  names=vector
+  routines,vector,chars=nil,nil,nil
+  return names,encoding,glyphs,metadata
+ end
+ local pfb=handlers.pfb or {}
+ handlers.pfb=pfb
+ pfb.loadvector=loadpfbvector
+ get_indexes=function(data,pfbname)
+  local vector=loadpfbvector(pfbname)
+  if vector then
+   local characters=data.characters
+   if trace_loading then
+    report_afm("getting index data from %a",pfbname)
+   end
+   for index=0,#vector do 
+    local name=vector[index]
+    local char=characters[name]
+    if char then
+     if trace_indexing then
+      report_afm("glyph %a has index %a",name,index)
+     end
+     char.index=index
+    else
+     if trace_indexing then
+      report_afm("glyph %a has index %a but no data",name,index)
+     end
+    end
+   end
+  end
+ end
+ get_shapes=function(pfbname)
+  local vector,encoding,glyphs=loadpfbvector(pfbname,true)
+  return glyphs
+ end
+end
+local spacer=patterns.spacer
+local whitespace=patterns.whitespace
+local lineend=patterns.newline
+local spacing=spacer^0
+local number=spacing*S("+-")^-1*(R("09")+S("."))^1/tonumber
+local name=spacing*C((1-whitespace)^1)
+local words=spacing*((1-lineend)^1/strip)
+local rest=(1-lineend)^0
+local fontdata=Carg(1)
+local semicolon=spacing*P(";")
+local plus=spacing*P("plus")*number
+local minus=spacing*P("minus")*number
+local function addkernpair(data,one,two,value)
+ local chr=data.characters[one]
+ if chr then
+  local kerns=chr.kerns
+  if kerns then
+   kerns[two]=tonumber(value)
+  else
+   chr.kerns={ [two]=tonumber(value) }
+  end
+ end
+end
+local p_kernpair=(fontdata*P("KPX")*name*name*number)/addkernpair
+local chr=false
+local ind=0
+local function start(data,version)
+ data.metadata.afmversion=version
+ ind=0
+ chr={}
+end
+local function stop()
+ ind=0
+ chr=false
+end
+local function setindex(i)
+ if i<0 then
+  ind=ind+1 
+ else
+  ind=i
+ end
+ chr={
+  index=ind
+ }
+end
+local function setwidth(width)
+ chr.width=width
+end
+local function setname(data,name)
+ data.characters[name]=chr
+end
+local function setboundingbox(boundingbox)
+ chr.boundingbox=boundingbox
+end
+local function setligature(plus,becomes)
+ local ligatures=chr.ligatures
+ if ligatures then
+  ligatures[plus]=becomes
+ else
+  chr.ligatures={ [plus]=becomes }
+ end
+end
+local p_charmetric=((
+ P("C")*number/setindex+P("WX")*number/setwidth+P("N")*fontdata*name/setname+P("B")*Ct((number)^4)/setboundingbox+P("L")*(name)^2/setligature
+  )*semicolon )^1
+local p_charmetrics=P("StartCharMetrics")*number*(p_charmetric+(1-P("EndCharMetrics")))^0*P("EndCharMetrics")
+local p_kernpairs=P("StartKernPairs")*number*(p_kernpair+(1-P("EndKernPairs"  )))^0*P("EndKernPairs"  )
+local function set_1(data,key,a)  data.metadata[lower(key)]=a     end
+local function set_2(data,key,a,b)   data.metadata[lower(key)]={ a,b } end
+local function set_3(data,key,a,b,c) data.metadata[lower(key)]={ a,b,c } end
+local p_parameters=P(false)+fontdata*((P("FontName")+P("FullName")+P("FamilyName"))/lower)*words/function(data,key,value)
+  data.metadata[key]=value
+ end+fontdata*((P("Weight")+P("Version"))/lower)*name/function(data,key,value)
+  data.metadata[key]=value
+ end+fontdata*P("IsFixedPitch")*name/function(data,pitch)
+  data.metadata.monospaced=toboolean(pitch,true)
+ end+fontdata*P("FontBBox")*Ct(number^4)/function(data,boundingbox)
+  data.metadata.boundingbox=boundingbox
+  end+fontdata*((P("CharWidth")+P("CapHeight")+P("XHeight")+P("Descender")+P("Ascender")+P("ItalicAngle"))/lower)*number/function(data,key,value)
+  data.metadata[key]=value
+ end+P("Comment")*spacing*(P(false)+(fontdata*C("DESIGNSIZE")*number*rest)/set_1 
++(fontdata*C("TFM designsize")*number*rest)/set_1+(fontdata*C("DesignSize")*number*rest)/set_1+(fontdata*C("CODINGSCHEME")*words*rest)/set_1 
++(fontdata*C("CHECKSUM")*number*words*rest)/set_1 
++(fontdata*C("SPACE")*number*plus*minus*rest)/set_3 
++(fontdata*C("QUAD")*number*rest)/set_1 
++(fontdata*C("EXTRASPACE")*number*rest)/set_1 
++(fontdata*C("NUM")*number*number*number*rest)/set_3 
++(fontdata*C("DENOM")*number*number*rest)/set_2 
++(fontdata*C("SUP")*number*number*number*rest)/set_3 
++(fontdata*C("SUB")*number*number*rest)/set_2 
++(fontdata*C("SUPDROP")*number*rest)/set_1 
++(fontdata*C("SUBDROP")*number*rest)/set_1 
++(fontdata*C("DELIM")*number*number*rest)/set_2 
++(fontdata*C("AXISHEIGHT")*number*rest)/set_1 
+ )
+local fullparser=(P("StartFontMetrics")*fontdata*name/start )*(p_charmetrics+p_kernpairs+p_parameters+(1-P("EndFontMetrics")) )^0*(P("EndFontMetrics")/stop )
+local infoparser=(P("StartFontMetrics")*fontdata*name/start )*(p_parameters+(1-P("EndFontMetrics")) )^0*(P("EndFontMetrics")/stop )
+local function read(filename,parser)
+ local afmblob=io.loaddata(filename)
+ if afmblob then
+  local data={
+   resources={
+    filename=resolvers.unresolve(filename),
+    version=afm.version,
+    creator="context mkiv",
+   },
+   properties={
+    hasitalics=false,
+   },
+   goodies={},
+   metadata={
+    filename=file.removesuffix(file.basename(filename))
+   },
+   characters={
+   },
+   descriptions={
+   },
+  }
+  if trace_loading then
+   report_afm("parsing afm file %a",filename)
+  end
+  lpegmatch(parser,afmblob,1,data)
+  return data
+ else
+  if trace_loading then
+   report_afm("no valid afm file %a",filename)
+  end
+  return nil
+ end
+end
+function readers.loadfont(afmname,pfbname)
+ local data=read(resolvers.findfile(afmname),fullparser)
+ if data then
+  if not pfbname or pfbname=="" then
+   pfbname=resolvers.findfile(file.replacesuffix(file.nameonly(afmname),"pfb"))
+  end
+  if pfbname and pfbname~="" then
+   data.resources.filename=resolvers.unresolve(pfbname)
+   get_indexes(data,pfbname)
+   return data
+  else 
+   report_afm("no pfb file for %a",afmname)
+  end
+ end
+end
+function readers.loadshapes(filename)
+ local fullname=resolvers.findfile(filename) or ""
+ if fullname=="" then
+  return {
+   filename="not found: "..filename,
+   glyphs={}
+  }
+ else
+  return {
+   filename=fullname,
+   format="opentype",
+   glyphs=get_shapes(fullname) or {},
+   units=1000,
+  }
+ end
+end
+function readers.getinfo(filename)
+ local data=read(resolvers.findfile(filename),infoparser)
+ if data then
+  return data.metadata
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-one']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local fonts,logs,trackers,containers,resolvers=fonts,logs,trackers,containers,resolvers
+local next,type,tonumber,rawget=next,type,tonumber,rawget
+local match,gsub=string.match,string.gsub
+local abs=math.abs
+local P,S,R,Cmt,C,Ct,Cs,Carg=lpeg.P,lpeg.S,lpeg.R,lpeg.Cmt,lpeg.C,lpeg.Ct,lpeg.Cs,lpeg.Carg
+local lpegmatch,patterns=lpeg.match,lpeg.patterns
+local sortedhash=table.sortedhash
+local trace_features=false  trackers.register("afm.features",function(v) trace_features=v end)
+local trace_indexing=false  trackers.register("afm.indexing",function(v) trace_indexing=v end)
+local trace_loading=false  trackers.register("afm.loading",function(v) trace_loading=v end)
+local trace_defining=false  trackers.register("fonts.defining",function(v) trace_defining=v end)
+local report_afm=logs.reporter("fonts","afm loading")
+local setmetatableindex=table.setmetatableindex
+local derivetable=table.derive
+local findbinfile=resolvers.findbinfile
+local privateoffset=fonts.constructors and fonts.constructors.privateoffset or 0xF0000 
+local definers=fonts.definers
+local readers=fonts.readers
+local constructors=fonts.constructors
+local afm=constructors.handlers.afm
+local pfb=constructors.handlers.pfb
+local otf=fonts.handlers.otf
+local otfreaders=otf.readers
+local otfenhancers=otf.enhancers
+local afmfeatures=constructors.features.afm
+local registerafmfeature=afmfeatures.register
+local afmenhancers=constructors.enhancers.afm
+local registerafmenhancer=afmenhancers.register
+afm.version=1.513 
+afm.cache=containers.define("fonts","one",afm.version,true)
+afm.autoprefixed=true 
+afm.helpdata={}  
+afm.syncspace=true 
+local overloads=fonts.mappings.overloads
+local applyruntimefixes=fonts.treatments and fonts.treatments.applyfixes
+function afm.load(filename)
+ filename=resolvers.findfile(filename,'afm') or ""
+ if filename~="" and not fonts.names.ignoredfile(filename) then
+  local name=file.removesuffix(file.basename(filename))
+  local data=containers.read(afm.cache,name)
+  local attr=lfs.attributes(filename)
+  local size=attr and attr.size or 0
+  local time=attr and attr.modification or 0
+  local pfbfile=file.replacesuffix(name,"pfb")
+  local pfbname=resolvers.findfile(pfbfile,"pfb") or ""
+  if pfbname=="" then
+   pfbname=resolvers.findfile(file.basename(pfbfile),"pfb") or ""
+  end
+  local pfbsize=0
+  local pfbtime=0
+  if pfbname~="" then
+   local attr=lfs.attributes(pfbname)
+   pfbsize=attr.size or 0
+   pfbtime=attr.modification or 0
+  end
+  if not data or data.size~=size or data.time~=time or data.pfbsize~=pfbsize or data.pfbtime~=pfbtime then
+   report_afm("reading %a",filename)
+   data=afm.readers.loadfont(filename,pfbname)
+   if data then
+    afmenhancers.apply(data,filename)
+    fonts.mappings.addtounicode(data,filename)
+    otfreaders.stripredundant(data)
+    otfreaders.pack(data)
+    data.size=size
+    data.time=time
+    data.pfbsize=pfbsize
+    data.pfbtime=pfbtime
+    report_afm("saving %a in cache",name)
+    data=containers.write(afm.cache,name,data)
+    data=containers.read(afm.cache,name)
+   end
+  end
+  if data then
+   otfreaders.unpack(data)
+   otfreaders.expand(data) 
+   otfreaders.addunicodetable(data) 
+   otfenhancers.apply(data,filename,data)
+   if applyruntimefixes then
+    applyruntimefixes(filename,data)
+   end
+  end
+  return data
+ end
+end
+local uparser=fonts.mappings.makenameparser() 
+local function enhance_unify_names(data,filename)
+ local unicodevector=fonts.encodings.agl.unicodes 
+ local unicodes={}
+ local names={}
+ local private=data.private or privateoffset
+ local descriptions=data.descriptions
+ for name,blob in sortedhash(data.characters) do 
+  local code=unicodevector[name] 
+  if not code then
+   code=lpegmatch(uparser,name)
+   if type(code)~="number" then
+    code=private
+    private=private+1
+    report_afm("assigning private slot %U for unknown glyph name %a",code,name)
+   end
+  end
+  local index=blob.index
+  unicodes[name]=code
+  names[name]=index
+  blob.name=name
+  descriptions[code]={
+   boundingbox=blob.boundingbox,
+   width=blob.width,
+   kerns=blob.kerns,
+   index=index,
+   name=name,
+  }
+ end
+ for unicode,description in next,descriptions do
+  local kerns=description.kerns
+  if kerns then
+   local krn={}
+   for name,kern in next,kerns do
+    local unicode=unicodes[name]
+    if unicode then
+     krn[unicode]=kern
+    else
+    end
+   end
+   description.kerns=krn
+  end
+ end
+ data.characters=nil
+ data.private=private
+ local resources=data.resources
+ local filename=resources.filename or file.removesuffix(file.basename(filename))
+ resources.filename=resolvers.unresolve(filename) 
+ resources.unicodes=unicodes 
+ resources.marks={}
+end
+local everywhere={ ["*"]={ ["*"]=true } } 
+local noflags={ false,false,false,false }
+local function enhance_normalize_features(data)
+ local ligatures=setmetatableindex("table")
+ local kerns=setmetatableindex("table")
+ local extrakerns=setmetatableindex("table")
+ for u,c in next,data.descriptions do
+  local l=c.ligatures
+  local k=c.kerns
+  local e=c.extrakerns
+  if l then
+   ligatures[u]=l
+   for u,v in next,l do
+    l[u]={ ligature=v }
+   end
+   c.ligatures=nil
+  end
+  if k then
+   kerns[u]=k
+   for u,v in next,k do
+    k[u]=v 
+   end
+   c.kerns=nil
+  end
+  if e then
+   extrakerns[u]=e
+   for u,v in next,e do
+    e[u]=v 
+   end
+   c.extrakerns=nil
+  end
+ end
+ local features={
+  gpos={},
+  gsub={},
+ }
+ local sequences={
+ }
+ if next(ligatures) then
+  features.gsub.liga=everywhere
+  data.properties.hasligatures=true
+  sequences[#sequences+1]={
+   features={
+    liga=everywhere,
+   },
+   flags=noflags,
+   name="s_s_0",
+   nofsteps=1,
+   order={ "liga" },
+   type="gsub_ligature",
+   steps={
+    {
+     coverage=ligatures,
+    },
+   },
+  }
+ end
+ if next(kerns) then
+  features.gpos.kern=everywhere
+  data.properties.haskerns=true
+  sequences[#sequences+1]={
+   features={
+    kern=everywhere,
+   },
+   flags=noflags,
+   name="p_s_0",
+   nofsteps=1,
+   order={ "kern" },
+   type="gpos_pair",
+   steps={
+    {
+     format="kern",
+     coverage=kerns,
+    },
+   },
+  }
+ end
+ if next(extrakerns) then
+  features.gpos.extrakerns=everywhere
+  data.properties.haskerns=true
+  sequences[#sequences+1]={
+   features={
+    extrakerns=everywhere,
+   },
+   flags=noflags,
+   name="p_s_1",
+   nofsteps=1,
+   order={ "extrakerns" },
+   type="gpos_pair",
+   steps={
+    {
+     format="kern",
+     coverage=extrakerns,
+    },
+   },
+  }
+ end
+ data.resources.features=features
+ data.resources.sequences=sequences
+end
+local function enhance_fix_names(data)
+ for k,v in next,data.descriptions do
+  local n=v.name
+  local r=overloads[n]
+  if r then
+   local name=r.name
+   if trace_indexing then
+    report_afm("renaming characters %a to %a",n,name)
+   end
+   v.name=name
+   v.unicode=r.unicode
+  end
+ end
+end
+local addthem=function(rawdata,ligatures)
+ if ligatures then
+  local descriptions=rawdata.descriptions
+  local resources=rawdata.resources
+  local unicodes=resources.unicodes
+  for ligname,ligdata in next,ligatures do
+   local one=descriptions[unicodes[ligname]]
+   if one then
+    for _,pair in next,ligdata do
+     local two=unicodes[pair[1]]
+     local three=unicodes[pair[2]]
+     if two and three then
+      local ol=one.ligatures
+      if ol then
+       if not ol[two] then
+        ol[two]=three
+       end
+      else
+       one.ligatures={ [two]=three }
+      end
+     end
+    end
+   end
+  end
+ end
+end
+local function enhance_add_ligatures(rawdata)
+ addthem(rawdata,afm.helpdata.ligatures)
+end
+local function enhance_add_extra_kerns(rawdata) 
+ local descriptions=rawdata.descriptions
+ local resources=rawdata.resources
+ local unicodes=resources.unicodes
+ local function do_it_left(what)
+  if what then
+   for unicode,description in next,descriptions do
+    local kerns=description.kerns
+    if kerns then
+     local extrakerns
+     for complex,simple in next,what do
+      complex=unicodes[complex]
+      simple=unicodes[simple]
+      if complex and simple then
+       local ks=kerns[simple]
+       if ks and not kerns[complex] then
+        if extrakerns then
+         extrakerns[complex]=ks
+        else
+         extrakerns={ [complex]=ks }
+        end
+       end
+      end
+     end
+     if extrakerns then
+      description.extrakerns=extrakerns
+     end
+    end
+   end
+  end
+ end
+ local function do_it_copy(what)
+  if what then
+   for complex,simple in next,what do
+    complex=unicodes[complex]
+    simple=unicodes[simple]
+    if complex and simple then
+     local complexdescription=descriptions[complex]
+     if complexdescription then 
+      local simpledescription=descriptions[complex]
+      if simpledescription then
+       local extrakerns
+       local kerns=simpledescription.kerns
+       if kerns then
+        for unicode,kern in next,kerns do
+         if extrakerns then
+          extrakerns[unicode]=kern
+         else
+          extrakerns={ [unicode]=kern }
+         end
+        end
+       end
+       local extrakerns=simpledescription.extrakerns
+       if extrakerns then
+        for unicode,kern in next,extrakerns do
+         if extrakerns then
+          extrakerns[unicode]=kern
+         else
+          extrakerns={ [unicode]=kern }
+         end
+        end
+       end
+       if extrakerns then
+        complexdescription.extrakerns=extrakerns
+       end
+      end
+     end
+    end
+   end
+  end
+ end
+ do_it_left(afm.helpdata.leftkerned)
+ do_it_left(afm.helpdata.bothkerned)
+ do_it_copy(afm.helpdata.bothkerned)
+ do_it_copy(afm.helpdata.rightkerned)
+end
+local function adddimensions(data) 
+ if data then
+  for unicode,description in next,data.descriptions do
+   local bb=description.boundingbox
+   if bb then
+    local ht=bb[4]
+    local dp=-bb[2]
+    if ht==0 or ht<0 then
+    else
+     description.height=ht
+    end
+    if dp==0 or dp<0 then
+    else
+     description.depth=dp
+    end
+   end
+  end
+ end
+end
+local function copytotfm(data)
+ if data and data.descriptions then
+  local metadata=data.metadata
+  local resources=data.resources
+  local properties=derivetable(data.properties)
+  local descriptions=derivetable(data.descriptions)
+  local goodies=derivetable(data.goodies)
+  local characters={}
+  local parameters={}
+  local unicodes=resources.unicodes
+  for unicode,description in next,data.descriptions do 
+   characters[unicode]={}
+  end
+  local filename=constructors.checkedfilename(resources)
+  local fontname=metadata.fontname or metadata.fullname
+  local fullname=metadata.fullname or metadata.fontname
+  local endash=0x2013
+  local emdash=0x2014
+  local space=0x0020 
+  local spacer="space"
+  local spaceunits=500
+  local monospaced=metadata.monospaced
+  local charwidth=metadata.charwidth
+  local italicangle=metadata.italicangle
+  local charxheight=metadata.xheight and metadata.xheight>0 and metadata.xheight
+  properties.monospaced=monospaced
+  parameters.italicangle=italicangle
+  parameters.charwidth=charwidth
+  parameters.charxheight=charxheight
+  local d_endash=descriptions[endash]
+  local d_emdash=descriptions[emdash]
+  local d_space=descriptions[space]
+  if not d_space or d_space==0 then
+   d_space=d_endash
+  end
+  if d_space then
+   spaceunits,spacer=d_space.width or 0,"space"
+  end
+  if properties.monospaced then
+   if spaceunits==0 and d_emdash then
+    spaceunits,spacer=d_emdash.width or 0,"emdash"
+   end
+  else
+   if spaceunits==0 and d_endash then
+    spaceunits,spacer=d_emdash.width or 0,"endash"
+   end
+  end
+  if spaceunits==0 and charwidth then
+   spaceunits,spacer=charwidth or 0,"charwidth"
+  end
+  if spaceunits==0 then
+   spaceunits=tonumber(spaceunits) or 500
+  end
+  if spaceunits==0 then
+   spaceunits=500
+  end
+  parameters.slant=0
+  parameters.space=spaceunits
+  parameters.space_stretch=500
+  parameters.space_shrink=333
+  parameters.x_height=400
+  parameters.quad=1000
+  if italicangle and italicangle~=0 then
+   parameters.italicangle=italicangle
+   parameters.italicfactor=math.cos(math.rad(90+italicangle))
+   parameters.slant=- math.tan(italicangle*math.pi/180)
+  end
+  if monospaced then
+   parameters.space_stretch=0
+   parameters.space_shrink=0
+  elseif afm.syncspace then
+   parameters.space_stretch=spaceunits/2
+   parameters.space_shrink=spaceunits/3
+  end
+  parameters.extra_space=parameters.space_shrink
+  if charxheight then
+   parameters.x_height=charxheight
+  else
+   local x=0x0078 
+   if x then
+    local x=descriptions[x]
+    if x then
+     parameters.x_height=x.height
+    end
+   end
+  end
+  if metadata.sup then
+   local dummy={ 0,0,0 }
+   parameters[ 1]=metadata.designsize  or 0
+   parameters[ 2]=metadata.checksum    or 0
+   parameters[ 3],
+   parameters[ 4],
+   parameters[ 5]=unpack(metadata.space   or dummy)
+   parameters[ 6]=metadata.quad    or 0
+   parameters[ 7]=metadata.extraspace or 0
+   parameters[ 8],
+   parameters[ 9],
+   parameters[10]=unpack(metadata.num  or dummy)
+   parameters[11],
+   parameters[12]=unpack(metadata.denom   or dummy)
+   parameters[13],
+   parameters[14],
+   parameters[15]=unpack(metadata.sup  or dummy)
+   parameters[16],
+   parameters[17]=unpack(metadata.sub  or dummy)
+   parameters[18]=metadata.supdrop or 0
+   parameters[19]=metadata.subdrop or 0
+   parameters[20],
+   parameters[21]=unpack(metadata.delim   or dummy)
+   parameters[22]=metadata.axisheight or 0
+  end
+  parameters.designsize=(metadata.designsize or 10)*65536
+  parameters.ascender=abs(metadata.ascender  or 0)
+  parameters.descender=abs(metadata.descender or 0)
+  parameters.units=1000
+  properties.spacer=spacer
+  properties.encodingbytes=2
+  properties.format=fonts.formats[filename] or "type1"
+  properties.filename=filename
+  properties.fontname=fontname
+  properties.fullname=fullname
+  properties.psname=fullname
+  properties.name=filename or fullname or fontname
+  properties.private=properties.private or data.private or privateoffset
+  if next(characters) then
+   return {
+    characters=characters,
+    descriptions=descriptions,
+    parameters=parameters,
+    resources=resources,
+    properties=properties,
+    goodies=goodies,
+   }
+  end
+ end
+ return nil
+end
+function afm.setfeatures(tfmdata,features)
+ local okay=constructors.initializefeatures("afm",tfmdata,features,trace_features,report_afm)
+ if okay then
+  return constructors.collectprocessors("afm",tfmdata,features,trace_features,report_afm)
+ else
+  return {} 
+ end
+end
+local function addtables(data)
+ local resources=data.resources
+ local lookuptags=resources.lookuptags
+ local unicodes=resources.unicodes
+ if not lookuptags then
+  lookuptags={}
+  resources.lookuptags=lookuptags
+ end
+ setmetatableindex(lookuptags,function(t,k)
+  local v=type(k)=="number" and ("lookup "..k) or k
+  t[k]=v
+  return v
+ end)
+ if not unicodes then
+  unicodes={}
+  resources.unicodes=unicodes
+  setmetatableindex(unicodes,function(t,k)
+   setmetatableindex(unicodes,nil)
+   for u,d in next,data.descriptions do
+    local n=d.name
+    if n then
+     t[n]=u
+    end
+   end
+   return rawget(t,k)
+  end)
+ end
+ constructors.addcoreunicodes(unicodes) 
+end
+local function afmtotfm(specification)
+ local afmname=specification.filename or specification.name
+ if specification.forced=="afm" or specification.format=="afm" then 
+  if trace_loading then
+   report_afm("forcing afm format for %a",afmname)
+  end
+ else
+  local tfmname=findbinfile(afmname,"ofm") or ""
+  if tfmname~="" then
+   if trace_loading then
+    report_afm("fallback from afm to tfm for %a",afmname)
+   end
+   return 
+  end
+ end
+ if afmname~="" then
+  local features=constructors.checkedfeatures("afm",specification.features.normal)
+  specification.features.normal=features
+  constructors.hashinstance(specification,true)
+  specification=definers.resolve(specification) 
+  local cache_id=specification.hash
+  local tfmdata=containers.read(constructors.cache,cache_id) 
+  if not tfmdata then
+   local rawdata=afm.load(afmname)
+   if rawdata and next(rawdata) then
+    addtables(rawdata)
+    adddimensions(rawdata)
+    tfmdata=copytotfm(rawdata)
+    if tfmdata and next(tfmdata) then
+     local shared=tfmdata.shared
+     if not shared then
+      shared={}
+      tfmdata.shared=shared
+     end
+     shared.rawdata=rawdata
+     shared.dynamics={}
+     tfmdata.changed={}
+     shared.features=features
+     shared.processes=afm.setfeatures(tfmdata,features)
+    end
+   elseif trace_loading then
+    report_afm("no (valid) afm file found with name %a",afmname)
+   end
+   tfmdata=containers.write(constructors.cache,cache_id,tfmdata)
+  end
+  return tfmdata
+ end
+end
+local function read_from_afm(specification)
+ local tfmdata=afmtotfm(specification)
+ if tfmdata then
+  tfmdata.properties.name=specification.name
+  tfmdata=constructors.scale(tfmdata,specification)
+  local allfeatures=tfmdata.shared.features or specification.features.normal
+  constructors.applymanipulators("afm",tfmdata,allfeatures,trace_features,report_afm)
+  fonts.loggers.register(tfmdata,'afm',specification)
+ end
+ return tfmdata
+end
+registerafmfeature {
+ name="mode",
+ description="mode",
+ initializers={
+  base=otf.modeinitializer,
+  node=otf.modeinitializer,
+ }
+}
+registerafmfeature {
+ name="features",
+ description="features",
+ default=true,
+ initializers={
+  node=otf.nodemodeinitializer,
+  base=otf.basemodeinitializer,
+ },
+ processors={
+  node=otf.featuresprocessor,
+ }
+}
+fonts.formats.afm="type1"
+fonts.formats.pfb="type1"
+local function check_afm(specification,fullname)
+ local foundname=findbinfile(fullname,'afm') or "" 
+ if foundname=="" then
+  foundname=fonts.names.getfilename(fullname,"afm") or ""
+ end
+ if fullname and foundname=="" and afm.autoprefixed then
+  local encoding,shortname=match(fullname,"^(.-)%-(.*)$") 
+  if encoding and shortname and fonts.encodings.known[encoding] then
+   shortname=findbinfile(shortname,'afm') or "" 
+   if shortname~="" then
+    foundname=shortname
+    if trace_defining then
+     report_afm("stripping encoding prefix from filename %a",afmname)
+    end
+   end
+  end
+ end
+ if foundname~="" then
+  specification.filename=foundname
+  specification.format="afm"
+  return read_from_afm(specification)
+ end
+end
+function readers.afm(specification,method)
+ local fullname=specification.filename or ""
+ local tfmdata=nil
+ if fullname=="" then
+  local forced=specification.forced or ""
+  if forced~="" then
+   tfmdata=check_afm(specification,specification.name.."."..forced)
+  end
+  if not tfmdata then
+   local check_tfm=readers.check_tfm
+   method=(check_tfm and (method or definers.method or "afm or tfm")) or "afm"
+   if method=="tfm" then
+    tfmdata=check_tfm(specification,specification.name)
+   elseif method=="afm" then
+    tfmdata=check_afm(specification,specification.name)
+   elseif method=="tfm or afm" then
+    tfmdata=check_tfm(specification,specification.name) or check_afm(specification,specification.name)
+   else 
+    tfmdata=check_afm(specification,specification.name) or check_tfm(specification,specification.name)
+   end
+  end
+ else
+  tfmdata=check_afm(specification,fullname)
+ end
+ return tfmdata
+end
+function readers.pfb(specification,method) 
+ local original=specification.specification
+ if trace_defining then
+  report_afm("using afm reader for %a",original)
+ end
+ specification.forced="afm"
+ local function swap(name)
+  local value=specification[swap]
+  if value then
+   specification[swap]=gsub("%.pfb",".afm",1)
+  end
+ end
+ swap("filename")
+ swap("fullname")
+ swap("forcedname")
+ swap("specification")
+ return readers.afm(specification,method)
+end
+registerafmenhancer("unify names",enhance_unify_names)
+registerafmenhancer("add ligatures",enhance_add_ligatures)
+registerafmenhancer("add extra kerns",enhance_add_extra_kerns)
+registerafmenhancer("normalize features",enhance_normalize_features)
+registerafmenhancer("check extra features",otfenhancers.enhance)
+registerafmenhancer("fix names",enhance_fix_names)
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-afk']={
+ version=1.001,
+ comment="companion to font-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files",
+ dataonly=true,
+}
+local allocate=utilities.storage.allocate
+fonts.handlers.afm.helpdata={
+ ligatures=allocate { 
+  ['f']={ 
+   { 'f','ff' },
+   { 'i','fi' },
+   { 'l','fl' },
+  },
+  ['ff']={
+   { 'i','ffi' }
+  },
+  ['fi']={
+   { 'i','fii' }
+  },
+  ['fl']={
+   { 'i','fli' }
+  },
+  ['s']={
+   { 't','st' }
+  },
+  ['i']={
+   { 'j','ij' }
+  },
+ },
+ texligatures=allocate {
+  ['quoteleft']={
+   { 'quoteleft','quotedblleft' }
+  },
+  ['quoteright']={
+   { 'quoteright','quotedblright' }
+  },
+  ['hyphen']={
+   { 'hyphen','endash' }
+  },
+  ['endash']={
+   { 'hyphen','emdash' }
+  }
+ },
+ leftkerned=allocate {
+  AEligature="A",aeligature="a",
+  OEligature="O",oeligature="o",
+  IJligature="I",ijligature="i",
+  AE="A",ae="a",
+  OE="O",oe="o",
+  IJ="I",ij="i",
+  Ssharp="S",ssharp="s",
+ },
+ rightkerned=allocate {
+  AEligature="E",aeligature="e",
+  OEligature="E",oeligature="e",
+  IJligature="J",ijligature="j",
+  AE="E",ae="e",
+  OE="E",oe="e",
+  IJ="J",ij="j",
+  Ssharp="S",ssharp="s",
+ },
+ bothkerned=allocate {
+  Acircumflex="A",acircumflex="a",
+  Ccircumflex="C",ccircumflex="c",
+  Ecircumflex="E",ecircumflex="e",
+  Gcircumflex="G",gcircumflex="g",
+  Hcircumflex="H",hcircumflex="h",
+  Icircumflex="I",icircumflex="i",
+  Jcircumflex="J",jcircumflex="j",
+  Ocircumflex="O",ocircumflex="o",
+  Scircumflex="S",scircumflex="s",
+  Ucircumflex="U",ucircumflex="u",
+  Wcircumflex="W",wcircumflex="w",
+  Ycircumflex="Y",ycircumflex="y",
+  Agrave="A",agrave="a",
+  Egrave="E",egrave="e",
+  Igrave="I",igrave="i",
+  Ograve="O",ograve="o",
+  Ugrave="U",ugrave="u",
+  Ygrave="Y",ygrave="y",
+  Atilde="A",atilde="a",
+  Itilde="I",itilde="i",
+  Otilde="O",otilde="o",
+  Utilde="U",utilde="u",
+  Ntilde="N",ntilde="n",
+  Adiaeresis="A",adiaeresis="a",Adieresis="A",adieresis="a",
+  Ediaeresis="E",ediaeresis="e",Edieresis="E",edieresis="e",
+  Idiaeresis="I",idiaeresis="i",Idieresis="I",idieresis="i",
+  Odiaeresis="O",odiaeresis="o",Odieresis="O",odieresis="o",
+  Udiaeresis="U",udiaeresis="u",Udieresis="U",udieresis="u",
+  Ydiaeresis="Y",ydiaeresis="y",Ydieresis="Y",ydieresis="y",
+  Aacute="A",aacute="a",
+  Cacute="C",cacute="c",
+  Eacute="E",eacute="e",
+  Iacute="I",iacute="i",
+  Lacute="L",lacute="l",
+  Nacute="N",nacute="n",
+  Oacute="O",oacute="o",
+  Racute="R",racute="r",
+  Sacute="S",sacute="s",
+  Uacute="U",uacute="u",
+  Yacute="Y",yacute="y",
+  Zacute="Z",zacute="z",
+  Dstroke="D",dstroke="d",
+  Hstroke="H",hstroke="h",
+  Tstroke="T",tstroke="t",
+  Cdotaccent="C",cdotaccent="c",
+  Edotaccent="E",edotaccent="e",
+  Gdotaccent="G",gdotaccent="g",
+  Idotaccent="I",idotaccent="i",
+  Zdotaccent="Z",zdotaccent="z",
+  Amacron="A",amacron="a",
+  Emacron="E",emacron="e",
+  Imacron="I",imacron="i",
+  Omacron="O",omacron="o",
+  Umacron="U",umacron="u",
+  Ccedilla="C",ccedilla="c",
+  Kcedilla="K",kcedilla="k",
+  Lcedilla="L",lcedilla="l",
+  Ncedilla="N",ncedilla="n",
+  Rcedilla="R",rcedilla="r",
+  Scedilla="S",scedilla="s",
+  Tcedilla="T",tcedilla="t",
+  Ohungarumlaut="O",ohungarumlaut="o",
+  Uhungarumlaut="U",uhungarumlaut="u",
+  Aogonek="A",aogonek="a",
+  Eogonek="E",eogonek="e",
+  Iogonek="I",iogonek="i",
+  Uogonek="U",uogonek="u",
+  Aring="A",aring="a",
+  Uring="U",uring="u",
+  Abreve="A",abreve="a",
+  Ebreve="E",ebreve="e",
+  Gbreve="G",gbreve="g",
+  Ibreve="I",ibreve="i",
+  Obreve="O",obreve="o",
+  Ubreve="U",ubreve="u",
+  Ccaron="C",ccaron="c",
+  Dcaron="D",dcaron="d",
+  Ecaron="E",ecaron="e",
+  Lcaron="L",lcaron="l",
+  Ncaron="N",ncaron="n",
+  Rcaron="R",rcaron="r",
+  Scaron="S",scaron="s",
+  Tcaron="T",tcaron="t",
+  Zcaron="Z",zcaron="z",
+  dotlessI="I",dotlessi="i",
+  dotlessJ="J",dotlessj="j",
+  AEligature="AE",aeligature="ae",AE="AE",ae="ae",
+  OEligature="OE",oeligature="oe",OE="OE",oe="oe",
+  IJligature="IJ",ijligature="ij",IJ="IJ",ij="ij",
+  Lstroke="L",lstroke="l",Lslash="L",lslash="l",
+  Ostroke="O",ostroke="o",Oslash="O",oslash="o",
+  Ssharp="SS",ssharp="ss",
+  Aumlaut="A",aumlaut="a",
+  Eumlaut="E",eumlaut="e",
+  Iumlaut="I",iumlaut="i",
+  Oumlaut="O",oumlaut="o",
+  Uumlaut="U",uumlaut="u",
+ }
+}
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-fonts-tfm']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local next,type=next,type
+local match,format=string.match,string.format
+local concat,sortedhash=table.concat,table.sortedhash
+local idiv=number.idiv
+local trace_defining=false  trackers.register("fonts.defining",function(v) trace_defining=v end)
+local trace_features=false  trackers.register("tfm.features",function(v) trace_features=v end)
+local report_defining=logs.reporter("fonts","defining")
+local report_tfm=logs.reporter("fonts","tfm loading")
+local findbinfile=resolvers.findbinfile
+local setmetatableindex=table.setmetatableindex
+local fonts=fonts
+local handlers=fonts.handlers
+local helpers=fonts.helpers
+local readers=fonts.readers
+local constructors=fonts.constructors
+local encodings=fonts.encodings
+local tfm=constructors.handlers.tfm
+tfm.version=1.000
+tfm.maxnestingdepth=5
+tfm.maxnestingsize=65536*1024
+local otf=fonts.handlers.otf
+local otfenhancers=otf.enhancers
+local tfmfeatures=constructors.features.tfm
+local registertfmfeature=tfmfeatures.register
+local tfmenhancers=constructors.enhancers.tfm
+local registertfmenhancer=tfmenhancers.register
+local charcommand=helpers.commands.char
+constructors.resolvevirtualtoo=false 
+fonts.formats.tfm="type1" 
+fonts.formats.ofm="type1" 
+function tfm.setfeatures(tfmdata,features)
+ local okay=constructors.initializefeatures("tfm",tfmdata,features,trace_features,report_tfm)
+ if okay then
+  return constructors.collectprocessors("tfm",tfmdata,features,trace_features,report_tfm)
+ else
+  return {} 
+ end
+end
+local depth={} 
+local loadtfm=font.read_tfm
+local loadvf=font.read_vf
+local function read_from_tfm(specification)
+ local filename=specification.filename
+ local size=specification.size
+ depth[filename]=(depth[filename] or 0)+1
+ if trace_defining then
+  report_defining("loading tfm file %a at size %s",filename,size)
+ end
+ local tfmdata=loadtfm(filename,size)
+ if tfmdata then
+  local features=specification.features and specification.features.normal or {}
+  local features=constructors.checkedfeatures("tfm",features)
+  specification.features.normal=features
+  local newtfmdata=(depth[filename]==1) and tfm.reencode(tfmdata,specification)
+  if newtfmdata then
+    tfmdata=newtfmdata
+  end
+  local resources=tfmdata.resources  or {}
+  local properties=tfmdata.properties or {}
+  local parameters=tfmdata.parameters or {}
+  local shared=tfmdata.shared  or {}
+  shared.features=features
+  shared.resources=resources
+  properties.name=tfmdata.name     
+  properties.fontname=tfmdata.fontname    
+  properties.psname=tfmdata.psname   
+  properties.fullname=tfmdata.fullname    
+  properties.filename=specification.filename 
+  properties.format=tfmdata.format or fonts.formats.tfm 
+  properties.usedbitmap=tfmdata.usedbitmap
+  tfmdata.properties=properties
+  tfmdata.resources=resources
+  tfmdata.parameters=parameters
+  tfmdata.shared=shared
+  shared.rawdata={ resources=resources }
+  shared.features=features
+  if newtfmdata then
+   if not resources.marks then
+    resources.marks={}
+   end
+   if not resources.sequences then
+    resources.sequences={}
+   end
+   if not resources.features then
+    resources.features={
+     gsub={},
+     gpos={},
+    }
+   end
+   if not tfmdata.changed then
+    tfmdata.changed={}
+   end
+   if not tfmdata.descriptions then
+    tfmdata.descriptions=tfmdata.characters
+   end
+   otf.readers.addunicodetable(tfmdata)
+   tfmenhancers.apply(tfmdata,filename)
+   constructors.applymanipulators("tfm",tfmdata,features,trace_features,report_tfm)
+   otf.readers.unifymissing(tfmdata)
+   fonts.mappings.addtounicode(tfmdata,filename)
+   tfmdata.tounicode=1
+   local tounicode=fonts.mappings.tounicode
+   for unicode,v in next,tfmdata.characters do
+    local u=v.unicode
+    if u then
+     v.tounicode=tounicode(u)
+    end
+   end
+   if tfmdata.usedbitmap then
+    tfm.addtounicode(tfmdata)
+   end
+  end
+  shared.processes=next(features) and tfm.setfeatures(tfmdata,features) or nil
+  if size<0 then
+   size=idiv(65536*-size,100)
+  end
+  parameters.factor=1  
+  parameters.units=1000  
+  parameters.size=size
+  parameters.slant=parameters.slant    or parameters[1] or 0
+  parameters.space=parameters.space    or parameters[2] or 0
+  parameters.space_stretch=parameters.space_stretch  or parameters[3] or 0
+  parameters.space_shrink=parameters.space_shrink   or parameters[4] or 0
+  parameters.x_height=parameters.x_height    or parameters[5] or 0
+  parameters.quad=parameters.quad     or parameters[6] or 0
+  parameters.extra_space=parameters.extra_space or parameters[7] or 0
+  constructors.enhanceparameters(parameters)
+  properties.private=properties.private or tfmdata.private or privateoffset
+  if newtfmdata then
+  elseif constructors.resolvevirtualtoo then
+   fonts.loggers.register(tfmdata,file.suffix(filename),specification) 
+   local vfname=findbinfile(specification.name,'ovf')
+   if vfname and vfname~="" then
+    local vfdata=loadvf(vfname,size)
+    if vfdata then
+     local chars=tfmdata.characters
+     for k,v in next,vfdata.characters do
+      chars[k].commands=v.commands
+     end
+     properties.virtualized=true
+     tfmdata.fonts=vfdata.fonts
+     tfmdata.type="virtual" 
+     local fontlist=vfdata.fonts
+     local name=file.nameonly(filename)
+     for i=1,#fontlist do
+      local n=fontlist[i].name
+      local s=fontlist[i].size
+      local d=depth[filename]
+      s=constructors.scaled(s,vfdata.designsize)
+      if d>tfm.maxnestingdepth then
+       report_defining("too deeply nested virtual font %a with size %a, max nesting depth %s",n,s,tfm.maxnestingdepth)
+       fontlist[i]={ id=0 }
+      elseif (d>1) and (s>tfm.maxnestingsize) then
+       report_defining("virtual font %a exceeds size %s",n,s)
+       fontlist[i]={ id=0 }
+      else
+       local t,id=constructors.readanddefine(n,s)
+       fontlist[i]={ id=id }
+      end
+     end
+    end
+   end
+  end
+  properties.haskerns=true
+  properties.hasligatures=true
+  properties.hasitalics=true
+  resources.unicodes={}
+  resources.lookuptags={}
+  depth[filename]=depth[filename]-1
+  return tfmdata
+ else
+  depth[filename]=depth[filename]-1
+ end
+end
+local function check_tfm(specification,fullname) 
+ local foundname=findbinfile(fullname,'tfm') or ""
+ if foundname=="" then
+  foundname=findbinfile(fullname,'ofm') or "" 
+ end
+ if foundname=="" then
+  foundname=fonts.names.getfilename(fullname,"tfm") or ""
+ end
+ if foundname~="" then
+  specification.filename=foundname
+  specification.format="ofm"
+  return read_from_tfm(specification)
+ elseif trace_defining then
+  report_defining("loading tfm with name %a fails",specification.name)
+ end
+end
+readers.check_tfm=check_tfm
+function readers.tfm(specification)
+ local fullname=specification.filename or ""
+ if fullname=="" then
+  local forced=specification.forced or ""
+  if forced~="" then
+   fullname=specification.name.."."..forced
+  else
+   fullname=specification.name
+  end
+ end
+ return check_tfm(specification,fullname)
+end
+readers.ofm=readers.tfm
+do
+ local outfiles={}
+ local tfmcache=table.setmetatableindex(function(t,tfmdata)
+  local id=font.define(tfmdata)
+  t[tfmdata]=id
+  return id
+ end)
+ local encdone=table.setmetatableindex("table")
+ function tfm.reencode(tfmdata,specification)
+  local features=specification.features
+  if not features then
+   return
+  end
+  local features=features.normal
+  if not features then
+   return
+  end
+  local tfmfile=file.basename(tfmdata.name)
+  local encfile=features.reencode 
+  local pfbfile=features.pfbfile  
+  local bitmap=features.bitmap   
+  if not encfile then
+   return
+  end
+  local pfbfile=outfiles[tfmfile]
+  if pfbfile==nil then
+   if bitmap then
+    pfbfile=false
+   elseif type(pfbfile)~="string" then
+    pfbfile=tfmfile
+   end
+   if type(pfbfile)=="string" then
+    pfbfile=file.addsuffix(pfbfile,"pfb")
+    report_tfm("using type1 shapes from %a for %a",pfbfile,tfmfile)
+   else
+    report_tfm("using bitmap shapes for %a",tfmfile)
+    pfbfile=false 
+   end
+   outfiles[tfmfile]=pfbfile
+  end
+  local encoding=false
+  local vector=false
+  if type(pfbfile)=="string" then
+   local pfb=constructors.handlers.pfb
+   if pfb and pfb.loadvector then
+    local v,e=pfb.loadvector(pfbfile)
+    if v then
+     vector=v
+    end
+    if e then
+     encoding=e
+    end
+   end
+  end
+  if type(encfile)=="string" and encfile~="auto" then
+   encoding=fonts.encodings.load(file.addsuffix(encfile,"enc"))
+   if encoding then
+    encoding=encoding.vector
+   end
+  end
+  if not encoding then
+   report_tfm("bad encoding for %a, quitting",tfmfile)
+   return
+  end
+  local unicoding=fonts.encodings.agl and fonts.encodings.agl.unicodes
+  local virtualid=tfmcache[tfmdata]
+  local tfmdata=table.copy(tfmdata) 
+  local characters={}
+  local originals=tfmdata.characters
+  local indices={}
+  local parentfont={ "font",1 }
+  local private=tfmdata.privateoffset or constructors.privateoffset
+  local reported=encdone[tfmfile][encfile]
+  local backmap=vector and table.swapped(vector)
+  local done={} 
+  for index,name in sortedhash(encoding) do 
+   local unicode=unicoding[name]
+   local original=originals[index]
+   if original then
+    if unicode then
+     original.unicode=unicode
+    else
+     unicode=private
+     private=private+1
+     if not reported then
+      report_tfm("glyph %a in font %a with encoding %a gets unicode %U",name,tfmfile,encfile,unicode)
+     end
+    end
+    characters[unicode]=original
+    indices[index]=unicode
+    original.name=name 
+    if backmap then
+     original.index=backmap[name]
+    else 
+     original.commands={ parentfont,charcommand[index] } 
+     original.oindex=index
+    end
+    done[name]=true
+   elseif not done[name] then
+    report_tfm("bad index %a in font %a with name %a",index,tfmfile,name)
+   end
+  end
+  encdone[tfmfile][encfile]=true
+  for k,v in next,characters do
+   local kerns=v.kerns
+   if kerns then
+    local t={}
+    for k,v in next,kerns do
+     local i=indices[k]
+     if i then
+      t[i]=v
+     end
+    end
+    v.kerns=next(t) and t or nil
+   end
+   local ligatures=v.ligatures
+   if ligatures then
+    local t={}
+    for k,v in next,ligatures do
+     local i=indices[k]
+     if i then
+      t[i]=v
+      v.char=indices[v.char]
+     end
+    end
+    v.ligatures=next(t) and t or nil
+   end
+  end
+  tfmdata.fonts={ { id=virtualid } }
+  tfmdata.characters=characters
+  tfmdata.fullname=tfmdata.fullname or tfmdata.name
+  tfmdata.psname=file.nameonly(pfbfile or tfmdata.name)
+  tfmdata.filename=pfbfile
+  tfmdata.encodingbytes=2
+  tfmdata.format="type1"
+  tfmdata.tounicode=1
+  tfmdata.embedding="subset"
+  tfmdata.usedbitmap=bitmap and virtualid
+  tfmdata.private=private
+  return tfmdata
+ end
+end
+do
+ local template=[[
+/CIDInit /ProcSet findresource begin
+  12 dict begin
+  begincmap
+    /CIDSystemInfo << /Registry (TeX) /Ordering (bitmap-%s) /Supplement 0 >> def
+    /CMapName /TeX-bitmap-%s def
+    /CMapType 2 def
+    1 begincodespacerange
+      <00> <FF>
+    endcodespacerange
+    %s beginbfchar
+%s
+    endbfchar
+  endcmap
+CMapName currentdict /CMap defineresource pop end
+end
+end
+]]
+ local flushstreamobject=lpdf and lpdf.flushstreamobject 
+ local setfontattributes=lpdf and lpdf.setfontattributes 
+ if not flushstreamobject then
+  flushstreamobject=function(data)
+   return pdf.obj { immediate=true,type="stream",string=data } 
+  end
+ end
+ if not setfontattributes then
+  setfontattributes=function(id,data)
+   return pdf.setfontattributes(id,data) 
+  end
+ end
+ function tfm.addtounicode(tfmdata)
+  local id=tfmdata.usedbitmap
+  local map={}
+  local char={} 
+  for k,v in next,tfmdata.characters do
+   local index=v.oindex
+   local tounicode=v.tounicode
+   if index and tounicode then
+    map[index]=tounicode
+   end
+  end
+  for k,v in sortedhash(map) do
+   char[#char+1]=format("<%02X> <%s>",k,v)
+  end
+  char=concat(char,"\n")
+  local stream=format(template,id,id,#char,char)
+  local reference=flushstreamobject(stream,nil,true)
+  setfontattributes(id,format("/ToUnicode %i 0 R",reference))
+ end
+end
+do
+ local everywhere={ ["*"]={ ["*"]=true } } 
+ local noflags={ false,false,false,false }
+ local function enhance_normalize_features(data)
+  local ligatures=setmetatableindex("table")
+  local kerns=setmetatableindex("table")
+  local characters=data.characters
+  for u,c in next,characters do
+   local l=c.ligatures
+   local k=c.kerns
+   if l then
+    ligatures[u]=l
+    for u,v in next,l do
+     l[u]={ ligature=v.char }
+    end
+    c.ligatures=nil
+   end
+   if k then
+    kerns[u]=k
+    for u,v in next,k do
+     k[u]=v 
+    end
+    c.kerns=nil
+   end
+  end
+  for u,l in next,ligatures do
+   for k,v in next,l do
+    local vl=v.ligature
+    local dl=ligatures[vl]
+    if dl then
+     for kk,vv in next,dl do
+      v[kk]=vv 
+     end
+    end
+   end
+  end
+  local features={
+   gpos={},
+   gsub={},
+  }
+  local sequences={
+  }
+  if next(ligatures) then
+   features.gsub.liga=everywhere
+   data.properties.hasligatures=true
+   sequences[#sequences+1]={
+    features={
+     liga=everywhere,
+    },
+    flags=noflags,
+    name="s_s_0",
+    nofsteps=1,
+    order={ "liga" },
+    type="gsub_ligature",
+    steps={
+     {
+      coverage=ligatures,
+     },
+    },
+   }
+  end
+  if next(kerns) then
+   features.gpos.kern=everywhere
+   data.properties.haskerns=true
+   sequences[#sequences+1]={
+    features={
+     kern=everywhere,
+    },
+    flags=noflags,
+    name="p_s_0",
+    nofsteps=1,
+    order={ "kern" },
+    type="gpos_pair",
+    steps={
+     {
+      format="kern",
+      coverage=kerns,
+     },
+    },
+   }
+  end
+  data.resources.features=features
+  data.resources.sequences=sequences
+  data.shared.resources=data.shared.resources or resources
+ end
+ registertfmenhancer("normalize features",enhance_normalize_features)
+ registertfmenhancer("check extra features",otfenhancers.enhance)
+end
+registertfmfeature {
+ name="mode",
+ description="mode",
+ initializers={
+  base=otf.modeinitializer,
+  node=otf.modeinitializer,
+ }
+}
+registertfmfeature {
+ name="features",
+ description="features",
+ default=true,
+ initializers={
+  base=otf.basemodeinitializer,
+  node=otf.nodemodeinitializer,
+ },
+ processors={
+  node=otf.featuresprocessor,
+ }
+}
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-lua']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local trace_defining=false  trackers.register("fonts.defining",function(v) trace_defining=v end)
+local report_lua=logs.reporter("fonts","lua loading")
+local fonts=fonts
+local readers=fonts.readers
+fonts.formats.lua="lua"
+local function check_lua(specification,fullname)
+ local fullname=resolvers.findfile(fullname) or ""
+ if fullname~="" then
+  local loader=loadfile(fullname)
+  loader=loader and loader()
+  return loader and loader(specification)
+ end
+end
+readers.check_lua=check_lua
+function readers.lua(specification)
+ local original=specification.specification
+ if trace_defining then
+  report_lua("using lua reader for %a",original)
+ end
+ local fullname=specification.filename or ""
+ if fullname=="" then
+  local forced=specification.forced or ""
+  if forced~="" then
+   fullname=specification.name.."."..forced
+  else
+   fullname=specification.name
+  end
+ end
+ return check_lua(specification,fullname)
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-def']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local lower,gsub=string.lower,string.gsub
+local tostring,next=tostring,next
+local lpegmatch=lpeg.match
+local suffixonly,removesuffix,basename=file.suffix,file.removesuffix,file.basename
+local formatters=string.formatters
+local sortedhash,sortedkeys=table.sortedhash,table.sortedkeys
+local allocate=utilities.storage.allocate
+local trace_defining=false  trackers  .register("fonts.defining",function(v) trace_defining=v end)
+local directive_embedall=false  directives.register("fonts.embedall",function(v) directive_embedall=v end)
+trackers.register("fonts.loading","fonts.defining","otf.loading","afm.loading","tfm.loading")
+local report_defining=logs.reporter("fonts","defining")
+local fonts=fonts
+local fontdata=fonts.hashes.identifiers
+local readers=fonts.readers
+local definers=fonts.definers
+local specifiers=fonts.specifiers
+local constructors=fonts.constructors
+local fontgoodies=fonts.goodies
+readers.sequence=allocate { 'otf','ttf','afm','tfm','lua' } 
+local variants=allocate()
+specifiers.variants=variants
+definers.methods=definers.methods or {}
+local internalized=allocate() 
+local lastdefined=nil 
+local loadedfonts=constructors.loadedfonts
+local designsizes=constructors.designsizes
+local resolvefile=fontgoodies and fontgoodies.filenames and fontgoodies.filenames.resolve or function(s) return s end
+local function makespecification(specification,lookup,name,sub,method,detail,size)
+ size=size or 655360
+ if not lookup or lookup=="" then
+  lookup=definers.defaultlookup
+ end
+ if trace_defining then
+  report_defining("specification %a, lookup %a, name %a, sub %a, method %a, detail %a",
+   specification,lookup,name,sub,method,detail)
+ end
+ local t={
+  lookup=lookup,
+  specification=specification,
+  size=size,
+  name=name,
+  sub=sub,
+  method=method,
+  detail=detail,
+  resolved="",
+  forced="",
+  features={},
+ }
+ return t
+end
+definers.makespecification=makespecification
+if context then
+
+--removed
+
+end
+definers.resolvers=definers.resolvers or {}
+local resolvers=definers.resolvers
+function resolvers.file(specification)
+ local name=resolvefile(specification.name) 
+ local suffix=lower(suffixonly(name))
+ if fonts.formats[suffix] then
+  specification.forced=suffix
+  specification.forcedname=name
+  specification.name=removesuffix(name)
+ else
+  specification.name=name 
+ end
+end
+function resolvers.name(specification)
+ local resolve=fonts.names.resolve
+ if resolve then
+  local resolved,sub,subindex,instance=resolve(specification.name,specification.sub,specification) 
+  if resolved then
+   specification.resolved=resolved
+   specification.sub=sub
+   specification.subindex=subindex
+   if instance then
+    specification.instance=instance
+    local features=specification.features
+    if not features then
+     features={}
+     specification.features=features
+    end
+    local normal=features.normal
+    if not normal then
+     normal={}
+     features.normal=normal
+    end
+    normal.instance=instance
+   end
+   local suffix=lower(suffixonly(resolved))
+   if fonts.formats[suffix] then
+    specification.forced=suffix
+    specification.forcedname=resolved
+    specification.name=removesuffix(resolved)
+   else
+    specification.name=resolved
+   end
+  end
+ else
+  resolvers.file(specification)
+ end
+end
+function resolvers.spec(specification)
+ local resolvespec=fonts.names.resolvespec
+ if resolvespec then
+  local resolved,sub,subindex=resolvespec(specification.name,specification.sub,specification) 
+  if resolved then
+   specification.resolved=resolved
+   specification.sub=sub
+   specification.subindex=subindex
+   specification.forced=lower(suffixonly(resolved))
+   specification.forcedname=resolved
+   specification.name=removesuffix(resolved)
+  end
+ else
+  resolvers.name(specification)
+ end
+end
+function definers.resolve(specification)
+ if not specification.resolved or specification.resolved=="" then 
+  local r=resolvers[specification.lookup]
+  if r then
+   r(specification)
+  end
+ end
+ if specification.forced=="" then
+  specification.forced=nil
+  specification.forcedname=nil
+ end
+ specification.hash=lower(specification.name..' @ '..constructors.hashfeatures(specification))
+ if specification.sub and specification.sub~="" then
+  specification.hash=specification.sub..' @ '..specification.hash
+ end
+ return specification
+end
+function definers.applypostprocessors(tfmdata)
+ local postprocessors=tfmdata.postprocessors
+ if postprocessors then
+  local properties=tfmdata.properties
+  for i=1,#postprocessors do
+   local extrahash=postprocessors[i](tfmdata) 
+   if type(extrahash)=="string" and extrahash~="" then
+    extrahash=gsub(lower(extrahash),"[^a-z]","-")
+    properties.fullname=formatters["%s-%s"](properties.fullname,extrahash)
+   end
+  end
+ end
+ return tfmdata
+end
+local function checkembedding(tfmdata)
+ local properties=tfmdata.properties
+ local embedding
+ if directive_embedall then
+  embedding="full"
+ elseif properties and properties.filename and constructors.dontembed[properties.filename] then
+  embedding="no"
+ else
+  embedding="subset"
+ end
+ if properties then
+  properties.embedding=embedding
+ else
+  tfmdata.properties={ embedding=embedding }
+ end
+ tfmdata.embedding=embedding
+end
+local function checkfeatures(tfmdata)
+ local resources=tfmdata.resources
+ local shared=tfmdata.shared
+ if resources and shared then
+  local features=resources.features
+  local usedfeatures=shared.features
+  if features and usedfeatures then
+   local usedlanguage=usedfeatures.language or "dflt"
+   local usedscript=usedfeatures.script or "dflt"
+   local function check(what)
+    if what then
+     local foundlanguages={}
+     for feature,scripts in next,what do
+      if usedscript=="auto" or scripts["*"] then
+      elseif not scripts[usedscript] then
+      else
+       for script,languages in next,scripts do
+        if languages["*"] then
+        elseif context and not languages[usedlanguage] then
+         report_defining("font %!font:name!, feature %a, script %a, no language %a",
+          tfmdata,feature,script,usedlanguage)
+        end
+       end
+      end
+      for script,languages in next,scripts do
+       for language in next,languages do
+        foundlanguages[language]=true
+       end
+      end
+     end
+     if false then
+      foundlanguages["*"]=nil
+      foundlanguages=sortedkeys(foundlanguages)
+      for feature,scripts in sortedhash(what) do
+       for script,languages in next,scripts do
+        if not languages["*"] then
+         for i=1,#foundlanguages do
+          local language=foundlanguages[i]
+          if context and not languages[language] then
+           report_defining("font %!font:name!, feature %a, script %a, no language %a",
+            tfmdata,feature,script,language)
+          end
+         end
+        end
+       end
+      end
+     end
+    end
+   end
+   check(features.gsub)
+   check(features.gpos)
+  end
+ end
+end
+function definers.loadfont(specification)
+ local hash=constructors.hashinstance(specification)
+ local tfmdata=loadedfonts[hash] 
+ if not tfmdata then
+  local forced=specification.forced or ""
+  if forced~="" then
+   local reader=readers[lower(forced)] 
+   tfmdata=reader and reader(specification)
+   if not tfmdata then
+    report_defining("forced type %a of %a not found",forced,specification.name)
+   end
+  else
+   local sequence=readers.sequence 
+   for s=1,#sequence do
+    local reader=sequence[s]
+    if readers[reader] then 
+     if trace_defining then
+      report_defining("trying (reader sequence driven) type %a for %a with file %a",reader,specification.name,specification.filename)
+     end
+     tfmdata=readers[reader](specification)
+     if tfmdata then
+      break
+     else
+      specification.filename=nil
+     end
+    end
+   end
+  end
+  if tfmdata then
+   tfmdata=definers.applypostprocessors(tfmdata)
+   checkembedding(tfmdata) 
+   loadedfonts[hash]=tfmdata
+   designsizes[specification.hash]=tfmdata.parameters.designsize
+   checkfeatures(tfmdata)
+  end
+ end
+ if not tfmdata then
+  report_defining("font with asked name %a is not found using lookup %a",specification.name,specification.lookup)
+ end
+ return tfmdata
+end
+function constructors.readanddefine(name,size) 
+ local specification=definers.analyze(name,size)
+ local method=specification.method
+ if method and variants[method] then
+  specification=variants[method](specification)
+ end
+ specification=definers.resolve(specification)
+ local hash=constructors.hashinstance(specification)
+ local id=definers.registered(hash)
+ if not id then
+  local tfmdata=definers.loadfont(specification)
+  if tfmdata then
+   tfmdata.properties.hash=hash
+   id=font.define(tfmdata)
+   definers.register(tfmdata,id)
+  else
+   id=0  
+  end
+ end
+ return fontdata[id],id
+end
+function definers.current() 
+ return lastdefined
+end
+function definers.registered(hash)
+ local id=internalized[hash]
+ return id,id and fontdata[id]
+end
+function definers.register(tfmdata,id)
+ if tfmdata and id then
+  local hash=tfmdata.properties.hash
+  if not hash then
+   report_defining("registering font, id %a, name %a, invalid hash",id,tfmdata.properties.filename or "?")
+  elseif not internalized[hash] then
+   internalized[hash]=id
+   if trace_defining then
+    report_defining("registering font, id %s, hash %a",id,hash)
+   end
+   fontdata[id]=tfmdata
+  end
+ end
+end
+function definers.read(specification,size,id) 
+ statistics.starttiming(fonts)
+ if type(specification)=="string" then
+  specification=definers.analyze(specification,size)
+ end
+ local method=specification.method
+ if method and variants[method] then
+  specification=variants[method](specification)
+ end
+ specification=definers.resolve(specification)
+ local hash=constructors.hashinstance(specification)
+ local tfmdata=definers.registered(hash) 
+ if tfmdata then
+  if trace_defining then
+   report_defining("already hashed: %s",hash)
+  end
+ else
+  tfmdata=definers.loadfont(specification) 
+  if tfmdata then
+   if trace_defining then
+    report_defining("loaded and hashed: %s",hash)
+   end
+   tfmdata.properties.hash=hash
+   if id then
+    definers.register(tfmdata,id)
+   end
+  else
+   if trace_defining then
+    report_defining("not loaded and hashed: %s",hash)
+   end
+  end
+ end
+ lastdefined=tfmdata or id 
+ if not tfmdata then 
+  report_defining("unknown font %a, loading aborted",specification.name)
+ elseif trace_defining and type(tfmdata)=="table" then
+  local properties=tfmdata.properties or {}
+  local parameters=tfmdata.parameters or {}
+  report_defining("using %a font with id %a, name %a, size %a, bytes %a, encoding %a, fullname %a, filename %a",
+   properties.format or "unknown",id or "-",properties.name,parameters.size,properties.encodingbytes,
+   properties.encodingname,properties.fullname,basename(properties.filename))
+ end
+ statistics.stoptiming(fonts)
+ return tfmdata
+end
+function font.getfont(id)
+ return fontdata[id] 
+end
+callbacks.register('define_font',definers.read,"definition of fonts (tfmdata preparation)")
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-fonts-def']={
+ version=1.001,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+--removed
+
+end
+local fonts=fonts
+fonts.constructors.namemode="specification"
+function fonts.definers.getspecification(str)
+ return "",str,"",":",str
+end
+local list={} 
+local function issome () list.lookup='name'    end 
+local function isfile () list.lookup='file'    end
+local function isname () list.lookup='name'    end
+local function thename(s)   list.name=s      end
+local function issub  (v)   list.sub=v      end
+local function iscrap (s)   list.crap=string.lower(s) end
+local function iskey  (k,v) list[k]=v      end
+local function istrue (s)   list[s]=true   end
+local function isfalse(s)   list[s]=false     end
+local P,S,R,C,Cs=lpeg.P,lpeg.S,lpeg.R,lpeg.C,lpeg.Cs
+local spaces=P(" ")^0
+local namespec=Cs((P("{")/"")*(1-S("}"))^0*(P("}")/"")+(1-S("/:("))^0)
+local crapspec=spaces*P("/")*(((1-P(":"))^0)/iscrap)*spaces
+local filename_1=P("file:")/isfile*(namespec/thename)
+local filename_2=P("[")*P(true)/isfile*(((1-P("]"))^0)/thename)*P("]")
+local fontname_1=P("name:")/isname*(namespec/thename)
+local fontname_2=P(true)/issome*(namespec/thename)
+local sometext=R("az","AZ","09")^1
+local somekey=R("az","AZ","09")^1
+local somevalue=(P("{")/"")*(1-P("}"))^0*(P("}")/"")+(1-S(";"))^1
+local truevalue=P("+")*spaces*(sometext/istrue)
+local falsevalue=P("-")*spaces*(sometext/isfalse)
+local keyvalue=(C(somekey)*spaces*P("=")*spaces*C(somevalue))/iskey
+local somevalue=sometext/istrue
+local subvalue=P("(")*(C(P(1-S("()"))^1)/issub)*P(")") 
+local option=spaces*(keyvalue+falsevalue+truevalue+somevalue)*spaces
+local options=P(":")*spaces*(P(";")^0*option)^0
+local pattern=(filename_1+filename_2+fontname_1+fontname_2)*subvalue^0*crapspec^0*options^0
+function fonts.definers.analyze(str,size)
+ local specification=fonts.definers.makespecification(str,nil,nil,nil,":",nil,size)
+ list={}
+ lpeg.match(pattern,str)
+ list.crap=nil
+ if list.name then
+  specification.name=list.name
+  list.name=nil
+ end
+ if list.lookup then
+  specification.lookup=list.lookup
+  list.lookup=nil
+ end
+ if list.sub then
+  specification.sub=list.sub
+  list.sub=nil
+ end
+ specification.features.normal=fonts.handlers.otf.features.normalize(list)
+ list=nil
+ return specification
+end
+function fonts.definers.applypostprocessors(tfmdata)
+ local postprocessors=tfmdata.postprocessors
+ if postprocessors then
+  for i=1,#postprocessors do
+   local extrahash=postprocessors[i](tfmdata) 
+   if type(extrahash)=="string" and extrahash~="" then
+    extrahash=string.gsub(lower(extrahash),"[^a-z]","-")
+    tfmdata.properties.fullname=format("%s-%s",tfmdata.properties.fullname,extrahash)
+   end
+  end
+ end
+ return tfmdata
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-fonts-ext']={
+ version=1.001,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+--removed
+
+end
+local byte=string.byte
+local fonts=fonts
+local handlers=fonts.handlers
+local otf=handlers.otf
+local afm=handlers.afm
+local registerotffeature=otf.features.register
+local registerafmfeature=afm.features.register
+function fonts.loggers.onetimemessage() end
+fonts.protrusions=fonts.protrusions  or {}
+fonts.protrusions.setups=fonts.protrusions.setups or {}
+local setups=fonts.protrusions.setups
+setups['default']={ 
+ factor=1,
+ left=1,
+ right=1,
+ [0x002C]={ 0,1 },
+ [0x002E]={ 0,1 },
+ [0x003A]={ 0,1 },
+ [0x003B]={ 0,1 },
+ [0x002D]={ 0,1 },
+ [0x2013]={ 0,0.50 },
+ [0x2014]={ 0,0.33 },
+ [0x3001]={ 0,1 },
+ [0x3002]={ 0,1 },
+ [0x060C]={ 0,1 },
+ [0x061B]={ 0,1 },
+ [0x06D4]={ 0,1 },
+}
+local function initializeprotrusion(tfmdata,value)
+ if value then
+  local setup=setups[value]
+  if setup then
+   local factor,left,right=setup.factor or 1,setup.left or 1,setup.right or 1
+   local emwidth=tfmdata.parameters.quad
+   tfmdata.parameters.protrusion={
+    auto=true,
+   }
+   for i,chr in next,tfmdata.characters do
+    local v,pl,pr=setup[i],nil,nil
+    if v then
+     pl,pr=v[1],v[2]
+    end
+    if pl and pl~=0 then chr.left_protruding=left*pl*factor end
+    if pr and pr~=0 then chr.right_protruding=right*pr*factor end
+   end
+  end
+ end
+end
+local specification={
+ name="protrusion",
+ description="shift characters into the left and or right margin",
+ initializers={
+  base=initializeprotrusion,
+  node=initializeprotrusion,
+ }
+}
+registerotffeature(specification)
+registerafmfeature(specification)
+fonts.expansions=fonts.expansions  or {}
+fonts.expansions.setups=fonts.expansions.setups or {}
+local setups=fonts.expansions.setups
+setups['default']={ 
+ stretch=2,
+ shrink=2,
+ step=.5,
+ factor=1,
+ [byte('A')]=0.5,[byte('B')]=0.7,[byte('C')]=0.7,[byte('D')]=0.5,[byte('E')]=0.7,
+ [byte('F')]=0.7,[byte('G')]=0.5,[byte('H')]=0.7,[byte('K')]=0.7,[byte('M')]=0.7,
+ [byte('N')]=0.7,[byte('O')]=0.5,[byte('P')]=0.7,[byte('Q')]=0.5,[byte('R')]=0.7,
+ [byte('S')]=0.7,[byte('U')]=0.7,[byte('W')]=0.7,[byte('Z')]=0.7,
+ [byte('a')]=0.7,[byte('b')]=0.7,[byte('c')]=0.7,[byte('d')]=0.7,[byte('e')]=0.7,
+ [byte('g')]=0.7,[byte('h')]=0.7,[byte('k')]=0.7,[byte('m')]=0.7,[byte('n')]=0.7,
+ [byte('o')]=0.7,[byte('p')]=0.7,[byte('q')]=0.7,[byte('s')]=0.7,[byte('u')]=0.7,
+ [byte('w')]=0.7,[byte('z')]=0.7,
+ [byte('2')]=0.7,[byte('3')]=0.7,[byte('6')]=0.7,[byte('8')]=0.7,[byte('9')]=0.7,
+}
+local function initializeexpansion(tfmdata,value)
+ if value then
+  local setup=setups[value]
+  if setup then
+   local factor=setup.factor or 1
+   tfmdata.parameters.expansion={
+    stretch=10*(setup.stretch or 0),
+    shrink=10*(setup.shrink  or 0),
+    step=10*(setup.step or 0),
+    auto=true,
+   }
+   for i,chr in next,tfmdata.characters do
+    local v=setup[i]
+    if v and v~=0 then
+     chr.expansion_factor=v*factor
+    else 
+     chr.expansion_factor=factor
+    end
+   end
+  end
+ end
+end
+local specification={
+ name="expansion",
+ description="apply hz optimization",
+ initializers={
+  base=initializeexpansion,
+  node=initializeexpansion,
+ }
+}
+registerotffeature(specification)
+registerafmfeature(specification)
+if not otf.features.normalize then
+ otf.features.normalize=function(t)
+  if t.rand then
+   t.rand="random"
+  end
+  return t
+ end
+end
+function fonts.helpers.nametoslot(name)
+ local t=type(name)
+ if t=="string" then
+  local tfmdata=fonts.hashes.identifiers[currentfont()]
+  local shared=tfmdata and tfmdata.shared
+  local fntdata=shared and shared.rawdata
+  return fntdata and fntdata.resources.unicodes[name]
+ elseif t=="number" then
+  return n
+ end
+end
+fonts.encodings=fonts.encodings or {}
+local reencodings={}
+fonts.encodings.reencodings=reencodings
+local function specialreencode(tfmdata,value)
+ local encoding=value and reencodings[value]
+ if encoding then
+  local temp={}
+  local char=tfmdata.characters
+  for k,v in next,encoding do
+   temp[k]=char[v]
+  end
+  for k,v in next,temp do
+   char[k]=temp[k]
+  end
+  return string.format("reencoded:%s",value)
+ end
+end
+local function initialize(tfmdata,value)
+ tfmdata.postprocessors=tfmdata.postprocessors or {}
+ table.insert(tfmdata.postprocessors,
+  function(tfmdata)
+   return specialreencode(tfmdata,value)
+  end
+ )
+end
+registerotffeature {
+ name="reencode",
+ description="reencode characters",
+ manipulators={
+  base=initialize,
+  node=initialize,
+ }
+}
+local function initialize(tfmdata,key,value)
+ if value then
+  tfmdata.mathparameters=nil
+ end
+end
+registerotffeature {
+ name="ignoremathconstants",
+ description="ignore math constants table",
+ initializers={
+  base=initialize,
+  node=initialize,
+ }
+}
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-imp-tex']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local next=next
+local fonts=fonts
+local otf=fonts.handlers.otf
+local registerotffeature=otf.features.register
+local addotffeature=otf.addfeature
+local specification={
+ type="ligature",
+ order={ "tlig" },
+ prepend=true,
+ data={
+  [0x2013]={ 0x002D,0x002D },
+  [0x2014]={ 0x002D,0x002D,0x002D },
+ },
+}
+addotffeature("tlig",specification)
+registerotffeature {
+ name="tlig",
+ description="tex ligatures",
+}
+local specification={
+ type="substitution",
+ order={ "trep" },
+ prepend=true,
+ data={
+  [0x0027]=0x2019,
+ },
+}
+addotffeature("trep",specification)
+registerotffeature {
+ name="trep",
+ description="tex replacements",
+}
+local anum_arabic={
+ [0x0030]=0x0660,
+ [0x0031]=0x0661,
+ [0x0032]=0x0662,
+ [0x0033]=0x0663,
+ [0x0034]=0x0664,
+ [0x0035]=0x0665,
+ [0x0036]=0x0666,
+ [0x0037]=0x0667,
+ [0x0038]=0x0668,
+ [0x0039]=0x0669,
+}
+local anum_persian={
+ [0x0030]=0x06F0,
+ [0x0031]=0x06F1,
+ [0x0032]=0x06F2,
+ [0x0033]=0x06F3,
+ [0x0034]=0x06F4,
+ [0x0035]=0x06F5,
+ [0x0036]=0x06F6,
+ [0x0037]=0x06F7,
+ [0x0038]=0x06F8,
+ [0x0039]=0x06F9,
+}
+local function valid(data)
+ local features=data.resources.features
+ if features then
+  for k,v in next,features do
+   for k,v in next,v do
+    if v.arab then
+     return true
+    end
+   end
+  end
+ end
+end
+local specification={
+ {
+  type="substitution",
+  features={ arab={ urd=true,dflt=true } },
+  order={ "anum" },
+  data=anum_arabic,
+  valid=valid,
+ },
+ {
+  type="substitution",
+  features={ arab={ urd=true } },
+  order={ "anum" },
+  data=anum_persian,
+  valid=valid,
+ },
+}
+addotffeature("anum",specification)
+registerotffeature {
+ name="anum",
+ description="arabic digits",
+}
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-imp-ligatures']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local lpegmatch=lpeg.match
+local utfsplit=utf.split
+local settings_to_array=utilities.parsers.settings_to_array
+local fonts=fonts
+local otf=fonts.handlers.otf
+local registerotffeature=otf.features.register
+local addotffeature=otf.addfeature
+local lookups={}
+local protect={}
+local revert={}
+local zwjchar=0x200C
+local zwj={ zwjchar }
+addotffeature {
+ name="blockligatures",
+ type="chainsubstitution",
+ nocheck=true,
+ prepend=true,
+ future=true,
+ lookups={
+  {
+   type="multiple",
+   data=lookups,
+  },
+ },
+ data={
+  rules=protect,
+ }
+}
+addotffeature {
+ name="blockligatures",
+ type="chainsubstitution",
+ nocheck=true,
+ append=true,
+ overload=false,
+ lookups={
+  {
+   type="ligature",
+   data=lookups,
+  },
+ },
+ data={
+  rules=revert,
+ }
+}
+registerotffeature {
+ name='blockligatures',
+ description='block certain ligatures',
+}
+local splitter=lpeg.splitat(":")
+local function blockligatures(str)
+ local t=settings_to_array(str)
+ for i=1,#t do
+  local ti=t[i]
+  local before,current,after=lpegmatch(splitter,ti)
+  if current and after then
+   if before then
+    before=utfsplit(before)
+    for i=1,#before do
+     before[i]={ before[i] }
+    end
+   end
+   if current then
+    current=utfsplit(current)
+   end
+   if after then
+    after=utfsplit(after)
+    for i=1,#after do
+     after[i]={ after[i] }
+    end
+   end
+  else
+   before=nil
+   current=utfsplit(ti)
+   after=nil
+  end
+  if #current>1 then
+   local one=current[1]
+   local two=current[2]
+   lookups[one]={ one,zwjchar }
+   local one={ one }
+   local two={ two }
+   local new=#protect+1
+   protect[new]={
+    before=before,
+    current={ one,two },
+    after=after,
+    lookups={ 1 },
+   }
+   revert[new]={
+    current={ one,zwj },
+    after={ two },
+    lookups={ 1 },
+   }
+  end
+ end
+end
+otf.helpers.blockligatures=blockligatures
+if context then
+
+--removed
+
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-imp-italics']={
+ version=1.001,
+ comment="companion to font-ini.mkiv and hand-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local next=next
+local fonts=fonts
+local handlers=fonts.handlers
+local registerotffeature=handlers.otf.features.register
+local registerafmfeature=handlers.afm.features.register
+local function initialize(tfmdata,key,value)
+ for unicode,character in next,tfmdata.characters do
+  local olditalic=character.italic
+  if olditalic and olditalic~=0 then
+   character.width=character.width+olditalic
+   character.italic=0
+  end
+ end
+end
+local specification={
+ name="italicwidths",
+ description="add italic to width",
+ manipulators={
+  base=initialize,
+  node=initialize,
+ }
+}
+registerotffeature(specification)
+registerafmfeature(specification)
+local function initialize(tfmdata,value) 
+ if value then
+  local parameters=tfmdata.parameters
+  local italicangle=parameters.italicangle
+  if italicangle and italicangle~=0 then
+   local properties=tfmdata.properties
+   local factor=tonumber(value) or 1
+   properties.hasitalics=true
+   properties.autoitalicamount=factor*(parameters.uwidth or 40)/2
+  end
+ end
+end
+local specification={
+ name="itlc",
+ description="italic correction",
+ initializers={
+  base=initialize,
+  node=initialize,
+ }
+}
+registerotffeature(specification)
+registerafmfeature(specification)
+if context then
+
+--removed
+
+end
+if context then
+ local letter=characters.is_letter
+ local always=true
+ local function collapseitalics(tfmdata,key,value)
+  local threshold=value==true and 100 or tonumber(value)
+  if threshold and threshold>0 then
+   if threshold>100 then
+    threshold=100
+   end
+   for unicode,data in next,tfmdata.characters do
+    if always or letter[unicode] or letter[data.unicode] then
+     local italic=data.italic
+     if italic and italic~=0 then
+      local width=data.width
+      if width and width~=0 then
+       local delta=threshold*italic/100
+       data.width=width+delta
+       data.italic=italic-delta
+      end
+     end
+    end
+   end
+  end
+ end
+ local dimensions_specification={
+  name="collapseitalics",
+  description="collapse italics",
+  manipulators={
+   base=collapseitalics,
+   node=collapseitalics,
+  }
+ }
+ registerotffeature(dimensions_specification)
+ registerafmfeature(dimensions_specification)
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-imp-effects']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local next,type,tonumber=next,type,tonumber
+local is_boolean=string.is_boolean
+local fonts=fonts
+local handlers=fonts.handlers
+local registerotffeature=handlers.otf.features.register
+local registerafmfeature=handlers.afm.features.register
+local settings_to_hash=utilities.parsers.settings_to_hash_colon_too
+local helpers=fonts.helpers
+local prependcommands=helpers.prependcommands
+local charcommand=helpers.commands.char
+local leftcommand=helpers.commands.left
+local rightcommand=helpers.commands.right
+local upcommand=helpers.commands.up
+local downcommand=helpers.commands.down
+local dummycommand=helpers.commands.dummy
+local report_effect=logs.reporter("fonts","effect")
+local report_slant=logs.reporter("fonts","slant")
+local report_extend=logs.reporter("fonts","extend")
+local report_squeeze=logs.reporter("fonts","squeeze")
+local trace=false
+trackers.register("fonts.effect",function(v) trace=v end)
+trackers.register("fonts.slant",function(v) trace=v end)
+trackers.register("fonts.extend",function(v) trace=v end)
+trackers.register("fonts.squeeze",function(v) trace=v end)
+local function initializeslant(tfmdata,value)
+ value=tonumber(value)
+ if not value then
+  value=0
+ elseif value>1 then
+  value=1
+ elseif value<-1 then
+  value=-1
+ end
+ if trace then
+  report_slant("applying %0.3f",value)
+ end
+ tfmdata.parameters.slantfactor=value
+end
+local specification={
+ name="slant",
+ description="slant glyphs",
+ initializers={
+  base=initializeslant,
+  node=initializeslant,
+ }
+}
+registerotffeature(specification)
+registerafmfeature(specification)
+local function initializeextend(tfmdata,value)
+ value=tonumber(value)
+ if not value then
+  value=0
+ elseif value>10 then
+  value=10
+ elseif value<-10 then
+  value=-10
+ end
+ if trace then
+  report_extend("applying %0.3f",value)
+ end
+ tfmdata.parameters.extendfactor=value
+end
+local specification={
+ name="extend",
+ description="scale glyphs horizontally",
+ initializers={
+  base=initializeextend,
+  node=initializeextend,
+ }
+}
+registerotffeature(specification)
+registerafmfeature(specification)
+local function initializesqueeze(tfmdata,value)
+ value=tonumber(value)
+ if not value then
+  value=0
+ elseif value>10 then
+  value=10
+ elseif value<-10 then
+  value=-10
+ end
+ if trace then
+  report_squeeze("applying %0.3f",value)
+ end
+ tfmdata.parameters.squeezefactor=value
+end
+local specification={
+ name="squeeze",
+ description="scale glyphs vertically",
+ initializers={
+  base=initializesqueeze,
+  node=initializesqueeze,
+ }
+}
+registerotffeature(specification)
+registerafmfeature(specification)
+local effects={
+ inner=0,
+ normal=0,
+ outer=1,
+ outline=1,
+ both=2,
+ hidden=3,
+}
+local function initializeeffect(tfmdata,value)
+ local spec
+ if type(value)=="number" then
+  spec={ width=value }
+ else
+  spec=settings_to_hash(value)
+ end
+ local effect=spec.effect or "both"
+ local width=tonumber(spec.width) or 0
+ local mode=effects[effect]
+ if not mode then
+  report_effect("invalid effect %a",effect)
+ elseif width==0 and mode==0 then
+  report_effect("invalid width %a for effect %a",width,effect)
+ else
+  local parameters=tfmdata.parameters
+  local properties=tfmdata.properties
+  parameters.mode=mode
+  parameters.width=width*1000
+  if is_boolean(spec.auto)==true then
+   local squeeze=1-width/20
+   local average=(1-squeeze)*width*100
+   spec.squeeze=squeeze
+   spec.extend=1+width/2
+   spec.wdelta=average
+   spec.hdelta=average/2
+   spec.ddelta=average/2
+   spec.vshift=average/2
+  end
+  local factor=tonumber(spec.factor)  or 0
+  local hfactor=tonumber(spec.hfactor) or factor
+  local vfactor=tonumber(spec.vfactor) or factor
+  local delta=tonumber(spec.delta)   or 1
+  local wdelta=tonumber(spec.wdelta)  or delta
+  local hdelta=tonumber(spec.hdelta)  or delta
+  local ddelta=tonumber(spec.ddelta)  or hdelta
+  local vshift=tonumber(spec.vshift)  or 0
+  local slant=spec.slant
+  local extend=spec.extend
+  local squeeze=spec.squeeze
+  if slant then
+   initializeslant(tfmdata,slant)
+  end
+  if extend then
+   initializeextend(tfmdata,extend)
+  end
+  if squeeze then
+   initializesqueeze(tfmdata,squeeze)
+  end
+  properties.effect={
+   effect=effect,
+   width=width,
+   factor=factor,
+   hfactor=hfactor,
+   vfactor=vfactor,
+   wdelta=wdelta,
+   hdelta=hdelta,
+   ddelta=ddelta,
+   vshift=vshift,
+   slant=tfmdata.parameters.slantfactor,
+   extend=tfmdata.parameters.extendfactor,
+   squeeze=tfmdata.parameters.squeezefactor,
+  }
+ end
+end
+local rules={
+ "RadicalRuleThickness",
+ "OverbarRuleThickness",
+ "FractionRuleThickness",
+ "UnderbarRuleThickness",
+}
+local function setmathparameters(tfmdata,characters,mathparameters,dx,dy,squeeze)
+ if delta~=0 then
+  for i=1,#rules do
+   local name=rules[i]
+   local value=mathparameters[name]
+   if value then
+      mathparameters[name]=(squeeze or 1)*(value+dx)
+   end
+  end
+ end
+end
+local function setmathcharacters(tfmdata,characters,mathparameters,dx,dy,squeeze,wdelta,hdelta,ddelta)
+ local function wdpatch(char)
+  if wsnap~=0 then
+   char.width=char.width+wdelta/2
+  end
+ end
+ local function htpatch(char)
+  if hsnap~=0 then
+   local height=char.height
+   if height then
+    char.height=char.height+2*dy
+   end
+  end
+ end
+ local character=characters[0x221A]
+ if character and character.next then
+  local char=character
+  local next=character.next
+  wdpatch(char)
+  htpatch(char)
+  while next do
+   char=characters[next]
+   wdpatch(char)
+   htpatch(char)
+   next=char.next
+  end
+  if char then
+   local v=char.vert_variants
+   if v then
+    local top=v[#v]
+    if top then
+     local char=characters[top.glyph]
+     htpatch(char)
+    end
+   end
+  end
+ end
+end
+local function manipulateeffect(tfmdata)
+ local effect=tfmdata.properties.effect
+ if effect then
+  local characters=tfmdata.characters
+  local parameters=tfmdata.parameters
+  local mathparameters=tfmdata.mathparameters
+  local multiplier=effect.width*100
+  local factor=parameters.factor
+  local hfactor=parameters.hfactor
+  local vfactor=parameters.vfactor
+  local wdelta=effect.wdelta*hfactor*multiplier
+  local hdelta=effect.hdelta*vfactor*multiplier
+  local ddelta=effect.ddelta*vfactor*multiplier
+  local vshift=effect.vshift*vfactor*multiplier
+  local squeeze=effect.squeeze
+  local hshift=wdelta/2
+  local dx=multiplier*vfactor
+  local dy=vshift
+  local factor=(1+effect.factor)*factor
+  local hfactor=(1+effect.hfactor)*hfactor
+  local vfactor=(1+effect.vfactor)*vfactor
+  local vshift=vshift~=0 and upcommand[vshift] or false
+  for unicode,character in next,characters do
+   local oldwidth=character.width
+   local oldheight=character.height
+   local olddepth=character.depth
+   if oldwidth and oldwidth>0 then
+    character.width=oldwidth+wdelta
+    local commands=character.commands
+    local hshift=rightcommand[hshift]
+    if vshift then
+     if commands then
+      prependcommands (commands,
+       hshift,
+       vshift
+      )
+     else
+      character.commands={
+       hshift,
+       vshift,
+       charcommand[unicode]
+      }
+     end
+    else
+     if commands then
+      prependcommands (commands,
+       hshift
+      )
+     else
+      character.commands={
+       hshift,
+       charcommand[unicode]
+      }
+     end
+    end
+   end
+   if oldheight and oldheight>0 then
+      character.height=oldheight+hdelta
+   end
+   if olddepth and olddepth>0 then
+      character.depth=olddepth+ddelta
+   end
+  end
+  if mathparameters then
+   setmathparameters(tfmdata,characters,mathparameters,dx,dy,squeeze)
+   setmathcharacters(tfmdata,characters,mathparameters,dx,dy,squeeze,wdelta,hdelta,ddelta)
+  end
+  parameters.factor=factor
+  parameters.hfactor=hfactor
+  parameters.vfactor=vfactor
+  if trace then
+   report_effect("applying")
+   report_effect("  effect  : %s",effect.effect)
+   report_effect("  width   : %s => %s",effect.width,multiplier)
+   report_effect("  factor  : %s => %s",effect.factor,factor )
+   report_effect("  hfactor : %s => %s",effect.hfactor,hfactor)
+   report_effect("  vfactor : %s => %s",effect.vfactor,vfactor)
+   report_effect("  wdelta  : %s => %s",effect.wdelta,wdelta)
+   report_effect("  hdelta  : %s => %s",effect.hdelta,hdelta)
+   report_effect("  ddelta  : %s => %s",effect.ddelta,ddelta)
+  end
+ end
+end
+local specification={
+ name="effect",
+ description="apply effects to glyphs",
+ initializers={
+  base=initializeeffect,
+  node=initializeeffect,
+ },
+ manipulators={
+  base=manipulateeffect,
+  node=manipulateeffect,
+ },
+}
+registerotffeature(specification)
+registerafmfeature(specification)
+local function initializeoutline(tfmdata,value)
+ value=tonumber(value)
+ if not value then
+  value=0
+ else
+  value=tonumber(value) or 0
+ end
+ local parameters=tfmdata.parameters
+ local properties=tfmdata.properties
+ parameters.mode=effects.outline
+ parameters.width=value*1000
+ properties.effect={
+  effect=effect,
+  width=width,
+ }
+end
+local specification={
+ name="outline",
+ description="outline glyphs",
+ initializers={
+  base=initializeoutline,
+  node=initializeoutline,
+ }
+}
+registerotffeature(specification)
+registerafmfeature(specification)
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+
+fonts.handlers.otf.addfeature {
+ ["dataset"]={
+  {
+   ["data"]={
+ ["À"]={ "A","̀" },
+ ["Á"]={ "A","́" },
+ ["Â"]={ "A","̂" },
+ ["Ã"]={ "A","̃" },
+ ["Ä"]={ "A","̈" },
+ ["Å"]={ "A","̊" },
+ ["Ç"]={ "C","̧" },
+ ["È"]={ "E","̀" },
+ ["É"]={ "E","́" },
+ ["Ê"]={ "E","̂" },
+ ["Ë"]={ "E","̈" },
+ ["Ì"]={ "I","̀" },
+ ["Í"]={ "I","́" },
+ ["Î"]={ "I","̂" },
+ ["Ï"]={ "I","̈" },
+ ["Ñ"]={ "N","̃" },
+ ["Ò"]={ "O","̀" },
+ ["Ó"]={ "O","́" },
+ ["Ô"]={ "O","̂" },
+ ["Õ"]={ "O","̃" },
+ ["Ö"]={ "O","̈" },
+ ["Ù"]={ "U","̀" },
+ ["Ú"]={ "U","́" },
+ ["Û"]={ "U","̂" },
+ ["Ü"]={ "U","̈" },
+ ["Ý"]={ "Y","́" },
+ ["à"]={ "a","̀" },
+ ["á"]={ "a","́" },
+ ["â"]={ "a","̂" },
+ ["ã"]={ "a","̃" },
+ ["ä"]={ "a","̈" },
+ ["å"]={ "a","̊" },
+ ["ç"]={ "c","̧" },
+ ["è"]={ "e","̀" },
+ ["é"]={ "e","́" },
+ ["ê"]={ "e","̂" },
+ ["ë"]={ "e","̈" },
+ ["ì"]={ "i","̀" },
+ ["í"]={ "i","́" },
+ ["î"]={ "i","̂" },
+ ["ï"]={ "i","̈" },
+ ["ñ"]={ "n","̃" },
+ ["ò"]={ "o","̀" },
+ ["ó"]={ "o","́" },
+ ["ô"]={ "o","̂" },
+ ["õ"]={ "o","̃" },
+ ["ö"]={ "o","̈" },
+ ["ù"]={ "u","̀" },
+ ["ú"]={ "u","́" },
+ ["û"]={ "u","̂" },
+ ["ü"]={ "u","̈" },
+ ["ý"]={ "y","́" },
+ ["ÿ"]={ "y","̈" },
+ ["Ā"]={ "A","̄" },
+ ["ā"]={ "a","̄" },
+ ["Ă"]={ "A","̆" },
+ ["ă"]={ "a","̆" },
+ ["Ą"]={ "A","̨" },
+ ["ą"]={ "a","̨" },
+ ["Ć"]={ "C","́" },
+ ["ć"]={ "c","́" },
+ ["Ĉ"]={ "C","̂" },
+ ["ĉ"]={ "c","̂" },
+ ["Ċ"]={ "C","̇" },
+ ["ċ"]={ "c","̇" },
+ ["Č"]={ "C","̌" },
+ ["č"]={ "c","̌" },
+ ["Ď"]={ "D","̌" },
+ ["ď"]={ "d","̌" },
+ ["Ē"]={ "E","̄" },
+ ["ē"]={ "e","̄" },
+ ["Ĕ"]={ "E","̆" },
+ ["ĕ"]={ "e","̆" },
+ ["Ė"]={ "E","̇" },
+ ["ė"]={ "e","̇" },
+ ["Ę"]={ "E","̨" },
+ ["ę"]={ "e","̨" },
+ ["Ě"]={ "E","̌" },
+ ["ě"]={ "e","̌" },
+ ["Ĝ"]={ "G","̂" },
+ ["ĝ"]={ "g","̂" },
+ ["Ğ"]={ "G","̆" },
+ ["ğ"]={ "g","̆" },
+ ["Ġ"]={ "G","̇" },
+ ["ġ"]={ "g","̇" },
+ ["Ģ"]={ "G","̧" },
+ ["ģ"]={ "g","̧" },
+ ["Ĥ"]={ "H","̂" },
+ ["ĥ"]={ "h","̂" },
+ ["Ĩ"]={ "I","̃" },
+ ["ĩ"]={ "i","̃" },
+ ["Ī"]={ "I","̄" },
+ ["ī"]={ "i","̄" },
+ ["Ĭ"]={ "I","̆" },
+ ["ĭ"]={ "i","̆" },
+ ["Į"]={ "I","̨" },
+ ["į"]={ "i","̨" },
+ ["İ"]={ "I","̇" },
+ ["Ĵ"]={ "J","̂" },
+ ["ĵ"]={ "j","̂" },
+ ["Ķ"]={ "K","̧" },
+ ["ķ"]={ "k","̧" },
+ ["Ĺ"]={ "L","́" },
+ ["ĺ"]={ "l","́" },
+ ["Ļ"]={ "L","̧" },
+ ["ļ"]={ "l","̧" },
+ ["Ľ"]={ "L","̌" },
+ ["ľ"]={ "l","̌" },
+ ["Ń"]={ "N","́" },
+ ["ń"]={ "n","́" },
+ ["Ņ"]={ "N","̧" },
+ ["ņ"]={ "n","̧" },
+ ["Ň"]={ "N","̌" },
+ ["ň"]={ "n","̌" },
+ ["Ō"]={ "O","̄" },
+ ["ō"]={ "o","̄" },
+ ["Ŏ"]={ "O","̆" },
+ ["ŏ"]={ "o","̆" },
+ ["Ő"]={ "O","̋" },
+ ["ő"]={ "o","̋" },
+ ["Ŕ"]={ "R","́" },
+ ["ŕ"]={ "r","́" },
+ ["Ŗ"]={ "R","̧" },
+ ["ŗ"]={ "r","̧" },
+ ["Ř"]={ "R","̌" },
+ ["ř"]={ "r","̌" },
+ ["Ś"]={ "S","́" },
+ ["ś"]={ "s","́" },
+ ["Ŝ"]={ "S","̂" },
+ ["ŝ"]={ "s","̂" },
+ ["Ş"]={ "S","̧" },
+ ["ş"]={ "s","̧" },
+ ["Š"]={ "S","̌" },
+ ["š"]={ "s","̌" },
+ ["Ţ"]={ "T","̧" },
+ ["ţ"]={ "t","̧" },
+ ["Ť"]={ "T","̌" },
+ ["ť"]={ "t","̌" },
+ ["Ũ"]={ "U","̃" },
+ ["ũ"]={ "u","̃" },
+ ["Ū"]={ "U","̄" },
+ ["ū"]={ "u","̄" },
+ ["Ŭ"]={ "U","̆" },
+ ["ŭ"]={ "u","̆" },
+ ["Ů"]={ "U","̊" },
+ ["ů"]={ "u","̊" },
+ ["Ű"]={ "U","̋" },
+ ["ű"]={ "u","̋" },
+ ["Ų"]={ "U","̨" },
+ ["ų"]={ "u","̨" },
+ ["Ŵ"]={ "W","̂" },
+ ["ŵ"]={ "w","̂" },
+ ["Ŷ"]={ "Y","̂" },
+ ["ŷ"]={ "y","̂" },
+ ["Ÿ"]={ "Y","̈" },
+ ["Ź"]={ "Z","́" },
+ ["ź"]={ "z","́" },
+ ["Ż"]={ "Z","̇" },
+ ["ż"]={ "z","̇" },
+ ["Ž"]={ "Z","̌" },
+ ["ž"]={ "z","̌" },
+ ["Ơ"]={ "O","̛" },
+ ["ơ"]={ "o","̛" },
+ ["Ư"]={ "U","̛" },
+ ["ư"]={ "u","̛" },
+ ["Ǎ"]={ "A","̌" },
+ ["ǎ"]={ "a","̌" },
+ ["Ǐ"]={ "I","̌" },
+ ["ǐ"]={ "i","̌" },
+ ["Ǒ"]={ "O","̌" },
+ ["ǒ"]={ "o","̌" },
+ ["Ǔ"]={ "U","̌" },
+ ["ǔ"]={ "u","̌" },
+ ["Ǖ"]={ "Ü","̄" },
+ ["ǖ"]={ "ü","̄" },
+ ["Ǘ"]={ "Ü","́" },
+ ["ǘ"]={ "ü","́" },
+ ["Ǚ"]={ "Ü","̌" },
+ ["ǚ"]={ "ü","̌" },
+ ["Ǜ"]={ "Ü","̀" },
+ ["ǜ"]={ "ü","̀" },
+ ["Ǟ"]={ "Ä","̄" },
+ ["ǟ"]={ "ä","̄" },
+ ["Ǡ"]={ "Ȧ","̄" },
+ ["ǡ"]={ "ȧ","̄" },
+ ["Ǣ"]={ "Æ","̄" },
+ ["ǣ"]={ "æ","̄" },
+ ["Ǧ"]={ "G","̌" },
+ ["ǧ"]={ "g","̌" },
+ ["Ǩ"]={ "K","̌" },
+ ["ǩ"]={ "k","̌" },
+ ["Ǫ"]={ "O","̨" },
+ ["ǫ"]={ "o","̨" },
+ ["Ǭ"]={ "Ǫ","̄" },
+ ["ǭ"]={ "ǫ","̄" },
+ ["Ǯ"]={ "Ʒ","̌" },
+ ["ǯ"]={ "ʒ","̌" },
+ ["ǰ"]={ "j","̌" },
+ ["Ǵ"]={ "G","́" },
+ ["ǵ"]={ "g","́" },
+ ["Ǹ"]={ "N","̀" },
+ ["ǹ"]={ "n","̀" },
+ ["Ǻ"]={ "Å","́" },
+ ["ǻ"]={ "å","́" },
+ ["Ǽ"]={ "Æ","́" },
+ ["ǽ"]={ "æ","́" },
+ ["Ǿ"]={ "Ø","́" },
+ ["ǿ"]={ "ø","́" },
+ ["Ȁ"]={ "A","̏" },
+ ["ȁ"]={ "a","̏" },
+ ["Ȃ"]={ "A","̑" },
+ ["ȃ"]={ "a","̑" },
+ ["Ȅ"]={ "E","̏" },
+ ["ȅ"]={ "e","̏" },
+ ["Ȇ"]={ "E","̑" },
+ ["ȇ"]={ "e","̑" },
+ ["Ȉ"]={ "I","̏" },
+ ["ȉ"]={ "i","̏" },
+ ["Ȋ"]={ "I","̑" },
+ ["ȋ"]={ "i","̑" },
+ ["Ȍ"]={ "O","̏" },
+ ["ȍ"]={ "o","̏" },
+ ["Ȏ"]={ "O","̑" },
+ ["ȏ"]={ "o","̑" },
+ ["Ȑ"]={ "R","̏" },
+ ["ȑ"]={ "r","̏" },
+ ["Ȓ"]={ "R","̑" },
+ ["ȓ"]={ "r","̑" },
+ ["Ȕ"]={ "U","̏" },
+ ["ȕ"]={ "u","̏" },
+ ["Ȗ"]={ "U","̑" },
+ ["ȗ"]={ "u","̑" },
+ ["Ș"]={ "S","̦" },
+ ["ș"]={ "s","̦" },
+ ["Ț"]={ "T","̦" },
+ ["ț"]={ "t","̦" },
+ ["Ȟ"]={ "H","̌" },
+ ["ȟ"]={ "h","̌" },
+ ["Ȧ"]={ "A","̇" },
+ ["ȧ"]={ "a","̇" },
+ ["Ȩ"]={ "E","̧" },
+ ["ȩ"]={ "e","̧" },
+ ["Ȫ"]={ "Ö","̄" },
+ ["ȫ"]={ "ö","̄" },
+ ["Ȭ"]={ "Õ","̄" },
+ ["ȭ"]={ "õ","̄" },
+ ["Ȯ"]={ "O","̇" },
+ ["ȯ"]={ "o","̇" },
+ ["Ȱ"]={ "Ȯ","̄" },
+ ["ȱ"]={ "ȯ","̄" },
+ ["Ȳ"]={ "Y","̄" },
+ ["ȳ"]={ "y","̄" },
+ ["̈́"]={ "̈","́" },
+ ["΅"]={ "¨","́" },
+ ["Ά"]={ "Α","́" },
+ ["Έ"]={ "Ε","́" },
+ ["Ή"]={ "Η","́" },
+ ["Ί"]={ "Ι","́" },
+ ["Ό"]={ "Ο","́" },
+ ["Ύ"]={ "Υ","́" },
+ ["Ώ"]={ "Ω","́" },
+ ["ΐ"]={ "ϊ","́" },
+ ["Ϊ"]={ "Ι","̈" },
+ ["Ϋ"]={ "Υ","̈" },
+ ["ά"]={ "α","́" },
+ ["έ"]={ "ε","́" },
+ ["ή"]={ "η","́" },
+ ["ί"]={ "ι","́" },
+ ["ΰ"]={ "ϋ","́" },
+ ["ϊ"]={ "ι","̈" },
+ ["ϋ"]={ "υ","̈" },
+ ["ό"]={ "ο","́" },
+ ["ύ"]={ "υ","́" },
+ ["ώ"]={ "ω","́" },
+ ["ϓ"]={ "ϒ","́" },
+ ["ϔ"]={ "ϒ","̈" },
+ ["Ѐ"]={ "Е","̀" },
+ ["Ё"]={ "Е","̈" },
+ ["Ѓ"]={ "Г","́" },
+ ["Ї"]={ "І","̈" },
+ ["Ќ"]={ "К","́" },
+ ["Ѝ"]={ "И","̀" },
+ ["Ў"]={ "У","̆" },
+ ["Й"]={ "И","̆" },
+ ["й"]={ "и","̆" },
+ ["ѐ"]={ "е","̀" },
+ ["ё"]={ "е","̈" },
+ ["ѓ"]={ "г","́" },
+ ["ї"]={ "і","̈" },
+ ["ќ"]={ "к","́" },
+ ["ѝ"]={ "и","̀" },
+ ["ў"]={ "у","̆" },
+ ["Ѷ"]={ "Ѵ","̏" },
+ ["ѷ"]={ "ѵ","̏" },
+ ["Ӂ"]={ "Ж","̆" },
+ ["ӂ"]={ "ж","̆" },
+ ["Ӑ"]={ "А","̆" },
+ ["ӑ"]={ "а","̆" },
+ ["Ӓ"]={ "А","̈" },
+ ["ӓ"]={ "а","̈" },
+ ["Ӗ"]={ "Е","̆" },
+ ["ӗ"]={ "е","̆" },
+ ["Ӛ"]={ "Ә","̈" },
+ ["ӛ"]={ "ә","̈" },
+ ["Ӝ"]={ "Ж","̈" },
+ ["ӝ"]={ "ж","̈" },
+ ["Ӟ"]={ "З","̈" },
+ ["ӟ"]={ "з","̈" },
+ ["Ӣ"]={ "И","̄" },
+ ["ӣ"]={ "и","̄" },
+ ["Ӥ"]={ "И","̈" },
+ ["ӥ"]={ "и","̈" },
+ ["Ӧ"]={ "О","̈" },
+ ["ӧ"]={ "о","̈" },
+ ["Ӫ"]={ "Ө","̈" },
+ ["ӫ"]={ "ө","̈" },
+ ["Ӭ"]={ "Э","̈" },
+ ["ӭ"]={ "э","̈" },
+ ["Ӯ"]={ "У","̄" },
+ ["ӯ"]={ "у","̄" },
+ ["Ӱ"]={ "У","̈" },
+ ["ӱ"]={ "у","̈" },
+ ["Ӳ"]={ "У","̋" },
+ ["ӳ"]={ "у","̋" },
+ ["Ӵ"]={ "Ч","̈" },
+ ["ӵ"]={ "ч","̈" },
+ ["Ӹ"]={ "Ы","̈" },
+ ["ӹ"]={ "ы","̈" },
+ ["آ"]={ "ا","ٓ" },
+ ["أ"]={ "ا","ٔ" },
+ ["ؤ"]={ "و","ٔ" },
+ ["إ"]={ "ا","ٕ" },
+ ["ئ"]={ "ي","ٔ" },
+ ["ۀ"]={ "ە","ٔ" },
+ ["ۂ"]={ "ہ","ٔ" },
+ ["ۓ"]={ "ے","ٔ" },
+ ["ऩ"]={ "न","़" },
+ ["ऱ"]={ "र","़" },
+ ["ऴ"]={ "ळ","़" },
+ ["क़"]={ "क","़" },
+ ["ख़"]={ "ख","़" },
+ ["ग़"]={ "ग","़" },
+ ["ज़"]={ "ज","़" },
+ ["ड़"]={ "ड","़" },
+ ["ढ़"]={ "ढ","़" },
+ ["फ़"]={ "फ","़" },
+ ["य़"]={ "य","़" },
+ ["ো"]={ "ে","া" },
+ ["ৌ"]={ "ে","ৗ" },
+ ["ড়"]={ "ড","়" },
+ ["ঢ়"]={ "ঢ","়" },
+ ["য়"]={ "য","়" },
+ ["ਲ਼"]={ "ਲ","਼" },
+ ["ਸ਼"]={ "ਸ","਼" },
+ ["ਖ਼"]={ "ਖ","਼" },
+ ["ਗ਼"]={ "ਗ","਼" },
+ ["ਜ਼"]={ "ਜ","਼" },
+ ["ਫ਼"]={ "ਫ","਼" },
+ ["ୈ"]={ "େ","ୖ" },
+ ["ୋ"]={ "େ","ା" },
+ ["ୌ"]={ "େ","ୗ" },
+ ["ଡ଼"]={ "ଡ","଼" },
+ ["ଢ଼"]={ "ଢ","଼" },
+ ["ஔ"]={ "ஒ","ௗ" },
+ ["ொ"]={ "ெ","ா" },
+ ["ோ"]={ "ே","ா" },
+ ["ௌ"]={ "ெ","ௗ" },
+ ["ై"]={ "ె","ౖ" },
+ ["ೀ"]={ "ಿ","ೕ" },
+ ["ೇ"]={ "ೆ","ೕ" },
+ ["ೈ"]={ "ೆ","ೖ" },
+ ["ೊ"]={ "ೆ","ೂ" },
+ ["ೋ"]={ "ೊ","ೕ" },
+ ["ൊ"]={ "െ","ാ" },
+ ["ോ"]={ "േ","ാ" },
+ ["ൌ"]={ "െ","ൗ" },
+ ["ේ"]={ "ෙ","්" },
+ ["ො"]={ "ෙ","ා" },
+ ["ෝ"]={ "ො","්" },
+ ["ෞ"]={ "ෙ","ෟ" },
+ ["གྷ"]={ "ག","ྷ" },
+ ["ཌྷ"]={ "ཌ","ྷ" },
+ ["དྷ"]={ "ད","ྷ" },
+ ["བྷ"]={ "བ","ྷ" },
+ ["ཛྷ"]={ "ཛ","ྷ" },
+ ["ཀྵ"]={ "ཀ","ྵ" },
+ ["ཱི"]={ "ཱ","ི" },
+ ["ཱུ"]={ "ཱ","ུ" },
+ ["ྲྀ"]={ "ྲ","ྀ" },
+ ["ླྀ"]={ "ླ","ྀ" },
+ ["ཱྀ"]={ "ཱ","ྀ" },
+ ["ྒྷ"]={ "ྒ","ྷ" },
+ ["ྜྷ"]={ "ྜ","ྷ" },
+ ["ྡྷ"]={ "ྡ","ྷ" },
+ ["ྦྷ"]={ "ྦ","ྷ" },
+ ["ྫྷ"]={ "ྫ","ྷ" },
+ ["ྐྵ"]={ "ྐ","ྵ" },
+ ["ဦ"]={ "ဥ","ီ" },
+ ["ᬆ"]={ "ᬅ","ᬵ" },
+ ["ᬈ"]={ "ᬇ","ᬵ" },
+ ["ᬊ"]={ "ᬉ","ᬵ" },
+ ["ᬌ"]={ "ᬋ","ᬵ" },
+ ["ᬎ"]={ "ᬍ","ᬵ" },
+ ["ᬒ"]={ "ᬑ","ᬵ" },
+ ["ᬻ"]={ "ᬺ","ᬵ" },
+ ["ᬽ"]={ "ᬼ","ᬵ" },
+ ["ᭀ"]={ "ᬾ","ᬵ" },
+ ["ᭁ"]={ "ᬿ","ᬵ" },
+ ["ᭃ"]={ "ᭂ","ᬵ" },
+ ["Ḁ"]={ "A","̥" },
+ ["ḁ"]={ "a","̥" },
+ ["Ḃ"]={ "B","̇" },
+ ["ḃ"]={ "b","̇" },
+ ["Ḅ"]={ "B","̣" },
+ ["ḅ"]={ "b","̣" },
+ ["Ḇ"]={ "B","̱" },
+ ["ḇ"]={ "b","̱" },
+ ["Ḉ"]={ "Ç","́" },
+ ["ḉ"]={ "ç","́" },
+ ["Ḋ"]={ "D","̇" },
+ ["ḋ"]={ "d","̇" },
+ ["Ḍ"]={ "D","̣" },
+ ["ḍ"]={ "d","̣" },
+ ["Ḏ"]={ "D","̱" },
+ ["ḏ"]={ "d","̱" },
+ ["Ḑ"]={ "D","̧" },
+ ["ḑ"]={ "d","̧" },
+ ["Ḓ"]={ "D","̭" },
+ ["ḓ"]={ "d","̭" },
+ ["Ḕ"]={ "Ē","̀" },
+ ["ḕ"]={ "ē","̀" },
+ ["Ḗ"]={ "Ē","́" },
+ ["ḗ"]={ "ē","́" },
+ ["Ḙ"]={ "E","̭" },
+ ["ḙ"]={ "e","̭" },
+ ["Ḛ"]={ "E","̰" },
+ ["ḛ"]={ "e","̰" },
+ ["Ḝ"]={ "Ȩ","̆" },
+ ["ḝ"]={ "ȩ","̆" },
+ ["Ḟ"]={ "F","̇" },
+ ["ḟ"]={ "f","̇" },
+ ["Ḡ"]={ "G","̄" },
+ ["ḡ"]={ "g","̄" },
+ ["Ḣ"]={ "H","̇" },
+ ["ḣ"]={ "h","̇" },
+ ["Ḥ"]={ "H","̣" },
+ ["ḥ"]={ "h","̣" },
+ ["Ḧ"]={ "H","̈" },
+ ["ḧ"]={ "h","̈" },
+ ["Ḩ"]={ "H","̧" },
+ ["ḩ"]={ "h","̧" },
+ ["Ḫ"]={ "H","̮" },
+ ["ḫ"]={ "h","̮" },
+ ["Ḭ"]={ "I","̰" },
+ ["ḭ"]={ "i","̰" },
+ ["Ḯ"]={ "Ï","́" },
+ ["ḯ"]={ "ï","́" },
+ ["Ḱ"]={ "K","́" },
+ ["ḱ"]={ "k","́" },
+ ["Ḳ"]={ "K","̣" },
+ ["ḳ"]={ "k","̣" },
+ ["Ḵ"]={ "K","̱" },
+ ["ḵ"]={ "k","̱" },
+ ["Ḷ"]={ "L","̣" },
+ ["ḷ"]={ "l","̣" },
+ ["Ḹ"]={ "Ḷ","̄" },
+ ["ḹ"]={ "ḷ","̄" },
+ ["Ḻ"]={ "L","̱" },
+ ["ḻ"]={ "l","̱" },
+ ["Ḽ"]={ "L","̭" },
+ ["ḽ"]={ "l","̭" },
+ ["Ḿ"]={ "M","́" },
+ ["ḿ"]={ "m","́" },
+ ["Ṁ"]={ "M","̇" },
+ ["ṁ"]={ "m","̇" },
+ ["Ṃ"]={ "M","̣" },
+ ["ṃ"]={ "m","̣" },
+ ["Ṅ"]={ "N","̇" },
+ ["ṅ"]={ "n","̇" },
+ ["Ṇ"]={ "N","̣" },
+ ["ṇ"]={ "n","̣" },
+ ["Ṉ"]={ "N","̱" },
+ ["ṉ"]={ "n","̱" },
+ ["Ṋ"]={ "N","̭" },
+ ["ṋ"]={ "n","̭" },
+ ["Ṍ"]={ "Õ","́" },
+ ["ṍ"]={ "õ","́" },
+ ["Ṏ"]={ "Õ","̈" },
+ ["ṏ"]={ "õ","̈" },
+ ["Ṑ"]={ "Ō","̀" },
+ ["ṑ"]={ "ō","̀" },
+ ["Ṓ"]={ "Ō","́" },
+ ["ṓ"]={ "ō","́" },
+ ["Ṕ"]={ "P","́" },
+ ["ṕ"]={ "p","́" },
+ ["Ṗ"]={ "P","̇" },
+ ["ṗ"]={ "p","̇" },
+ ["Ṙ"]={ "R","̇" },
+ ["ṙ"]={ "r","̇" },
+ ["Ṛ"]={ "R","̣" },
+ ["ṛ"]={ "r","̣" },
+ ["Ṝ"]={ "Ṛ","̄" },
+ ["ṝ"]={ "ṛ","̄" },
+ ["Ṟ"]={ "R","̱" },
+ ["ṟ"]={ "r","̱" },
+ ["Ṡ"]={ "S","̇" },
+ ["ṡ"]={ "s","̇" },
+ ["Ṣ"]={ "S","̣" },
+ ["ṣ"]={ "s","̣" },
+ ["Ṥ"]={ "Ś","̇" },
+ ["ṥ"]={ "ś","̇" },
+ ["Ṧ"]={ "Š","̇" },
+ ["ṧ"]={ "š","̇" },
+ ["Ṩ"]={ "Ṣ","̇" },
+ ["ṩ"]={ "ṣ","̇" },
+ ["Ṫ"]={ "T","̇" },
+ ["ṫ"]={ "t","̇" },
+ ["Ṭ"]={ "T","̣" },
+ ["ṭ"]={ "t","̣" },
+ ["Ṯ"]={ "T","̱" },
+ ["ṯ"]={ "t","̱" },
+ ["Ṱ"]={ "T","̭" },
+ ["ṱ"]={ "t","̭" },
+ ["Ṳ"]={ "U","̤" },
+ ["ṳ"]={ "u","̤" },
+ ["Ṵ"]={ "U","̰" },
+ ["ṵ"]={ "u","̰" },
+ ["Ṷ"]={ "U","̭" },
+ ["ṷ"]={ "u","̭" },
+ ["Ṹ"]={ "Ũ","́" },
+ ["ṹ"]={ "ũ","́" },
+ ["Ṻ"]={ "Ū","̈" },
+ ["ṻ"]={ "ū","̈" },
+ ["Ṽ"]={ "V","̃" },
+ ["ṽ"]={ "v","̃" },
+ ["Ṿ"]={ "V","̣" },
+ ["ṿ"]={ "v","̣" },
+ ["Ẁ"]={ "W","̀" },
+ ["ẁ"]={ "w","̀" },
+ ["Ẃ"]={ "W","́" },
+ ["ẃ"]={ "w","́" },
+ ["Ẅ"]={ "W","̈" },
+ ["ẅ"]={ "w","̈" },
+ ["Ẇ"]={ "W","̇" },
+ ["ẇ"]={ "w","̇" },
+ ["Ẉ"]={ "W","̣" },
+ ["ẉ"]={ "w","̣" },
+ ["Ẋ"]={ "X","̇" },
+ ["ẋ"]={ "x","̇" },
+ ["Ẍ"]={ "X","̈" },
+ ["ẍ"]={ "x","̈" },
+ ["Ẏ"]={ "Y","̇" },
+ ["ẏ"]={ "y","̇" },
+ ["Ẑ"]={ "Z","̂" },
+ ["ẑ"]={ "z","̂" },
+ ["Ẓ"]={ "Z","̣" },
+ ["ẓ"]={ "z","̣" },
+ ["Ẕ"]={ "Z","̱" },
+ ["ẕ"]={ "z","̱" },
+ ["ẖ"]={ "h","̱" },
+ ["ẗ"]={ "t","̈" },
+ ["ẘ"]={ "w","̊" },
+ ["ẙ"]={ "y","̊" },
+ ["ẛ"]={ "ſ","̇" },
+ ["Ạ"]={ "A","̣" },
+ ["ạ"]={ "a","̣" },
+ ["Ả"]={ "A","̉" },
+ ["ả"]={ "a","̉" },
+ ["Ấ"]={ "Â","́" },
+ ["ấ"]={ "â","́" },
+ ["Ầ"]={ "Â","̀" },
+ ["ầ"]={ "â","̀" },
+ ["Ẩ"]={ "Â","̉" },
+ ["ẩ"]={ "â","̉" },
+ ["Ẫ"]={ "Â","̃" },
+ ["ẫ"]={ "â","̃" },
+ ["Ậ"]={ "Ạ","̂" },
+ ["ậ"]={ "ạ","̂" },
+ ["Ắ"]={ "Ă","́" },
+ ["ắ"]={ "ă","́" },
+ ["Ằ"]={ "Ă","̀" },
+ ["ằ"]={ "ă","̀" },
+ ["Ẳ"]={ "Ă","̉" },
+ ["ẳ"]={ "ă","̉" },
+ ["Ẵ"]={ "Ă","̃" },
+ ["ẵ"]={ "ă","̃" },
+ ["Ặ"]={ "Ạ","̆" },
+ ["ặ"]={ "ạ","̆" },
+ ["Ẹ"]={ "E","̣" },
+ ["ẹ"]={ "e","̣" },
+ ["Ẻ"]={ "E","̉" },
+ ["ẻ"]={ "e","̉" },
+ ["Ẽ"]={ "E","̃" },
+ ["ẽ"]={ "e","̃" },
+ ["Ế"]={ "Ê","́" },
+ ["ế"]={ "ê","́" },
+ ["Ề"]={ "Ê","̀" },
+ ["ề"]={ "ê","̀" },
+ ["Ể"]={ "Ê","̉" },
+ ["ể"]={ "ê","̉" },
+ ["Ễ"]={ "Ê","̃" },
+ ["ễ"]={ "ê","̃" },
+ ["Ệ"]={ "Ẹ","̂" },
+ ["ệ"]={ "ẹ","̂" },
+ ["Ỉ"]={ "I","̉" },
+ ["ỉ"]={ "i","̉" },
+ ["Ị"]={ "I","̣" },
+ ["ị"]={ "i","̣" },
+ ["Ọ"]={ "O","̣" },
+ ["ọ"]={ "o","̣" },
+ ["Ỏ"]={ "O","̉" },
+ ["ỏ"]={ "o","̉" },
+ ["Ố"]={ "Ô","́" },
+ ["ố"]={ "ô","́" },
+ ["Ồ"]={ "Ô","̀" },
+ ["ồ"]={ "ô","̀" },
+ ["Ổ"]={ "Ô","̉" },
+ ["ổ"]={ "ô","̉" },
+ ["Ỗ"]={ "Ô","̃" },
+ ["ỗ"]={ "ô","̃" },
+ ["Ộ"]={ "Ọ","̂" },
+ ["ộ"]={ "ọ","̂" },
+ ["Ớ"]={ "Ơ","́" },
+ ["ớ"]={ "ơ","́" },
+ ["Ờ"]={ "Ơ","̀" },
+ ["ờ"]={ "ơ","̀" },
+ ["Ở"]={ "Ơ","̉" },
+ ["ở"]={ "ơ","̉" },
+ ["Ỡ"]={ "Ơ","̃" },
+ ["ỡ"]={ "ơ","̃" },
+ ["Ợ"]={ "Ơ","̣" },
+ ["ợ"]={ "ơ","̣" },
+ ["Ụ"]={ "U","̣" },
+ ["ụ"]={ "u","̣" },
+ ["Ủ"]={ "U","̉" },
+ ["ủ"]={ "u","̉" },
+ ["Ứ"]={ "Ư","́" },
+ ["ứ"]={ "ư","́" },
+ ["Ừ"]={ "Ư","̀" },
+ ["ừ"]={ "ư","̀" },
+ ["Ử"]={ "Ư","̉" },
+ ["ử"]={ "ư","̉" },
+ ["Ữ"]={ "Ư","̃" },
+ ["ữ"]={ "ư","̃" },
+ ["Ự"]={ "Ư","̣" },
+ ["ự"]={ "ư","̣" },
+ ["Ỳ"]={ "Y","̀" },
+ ["ỳ"]={ "y","̀" },
+ ["Ỵ"]={ "Y","̣" },
+ ["ỵ"]={ "y","̣" },
+ ["Ỷ"]={ "Y","̉" },
+ ["ỷ"]={ "y","̉" },
+ ["Ỹ"]={ "Y","̃" },
+ ["ỹ"]={ "y","̃" },
+ ["ἀ"]={ "α","̓" },
+ ["ἁ"]={ "α","̔" },
+ ["ἂ"]={ "ἀ","̀" },
+ ["ἃ"]={ "ἁ","̀" },
+ ["ἄ"]={ "ἀ","́" },
+ ["ἅ"]={ "ἁ","́" },
+ ["ἆ"]={ "ἀ","͂" },
+ ["ἇ"]={ "ἁ","͂" },
+ ["Ἀ"]={ "Α","̓" },
+ ["Ἁ"]={ "Α","̔" },
+ ["Ἂ"]={ "Ἀ","̀" },
+ ["Ἃ"]={ "Ἁ","̀" },
+ ["Ἄ"]={ "Ἀ","́" },
+ ["Ἅ"]={ "Ἁ","́" },
+ ["Ἆ"]={ "Ἀ","͂" },
+ ["Ἇ"]={ "Ἁ","͂" },
+ ["ἐ"]={ "ε","̓" },
+ ["ἑ"]={ "ε","̔" },
+ ["ἒ"]={ "ἐ","̀" },
+ ["ἓ"]={ "ἑ","̀" },
+ ["ἔ"]={ "ἐ","́" },
+ ["ἕ"]={ "ἑ","́" },
+ ["Ἐ"]={ "Ε","̓" },
+ ["Ἑ"]={ "Ε","̔" },
+ ["Ἒ"]={ "Ἐ","̀" },
+ ["Ἓ"]={ "Ἑ","̀" },
+ ["Ἔ"]={ "Ἐ","́" },
+ ["Ἕ"]={ "Ἑ","́" },
+ ["ἠ"]={ "η","̓" },
+ ["ἡ"]={ "η","̔" },
+ ["ἢ"]={ "ἠ","̀" },
+ ["ἣ"]={ "ἡ","̀" },
+ ["ἤ"]={ "ἠ","́" },
+ ["ἥ"]={ "ἡ","́" },
+ ["ἦ"]={ "ἠ","͂" },
+ ["ἧ"]={ "ἡ","͂" },
+ ["Ἠ"]={ "Η","̓" },
+ ["Ἡ"]={ "Η","̔" },
+ ["Ἢ"]={ "Ἠ","̀" },
+ ["Ἣ"]={ "Ἡ","̀" },
+ ["Ἤ"]={ "Ἠ","́" },
+ ["Ἥ"]={ "Ἡ","́" },
+ ["Ἦ"]={ "Ἠ","͂" },
+ ["Ἧ"]={ "Ἡ","͂" },
+ ["ἰ"]={ "ι","̓" },
+ ["ἱ"]={ "ι","̔" },
+ ["ἲ"]={ "ἰ","̀" },
+ ["ἳ"]={ "ἱ","̀" },
+ ["ἴ"]={ "ἰ","́" },
+ ["ἵ"]={ "ἱ","́" },
+ ["ἶ"]={ "ἰ","͂" },
+ ["ἷ"]={ "ἱ","͂" },
+ ["Ἰ"]={ "Ι","̓" },
+ ["Ἱ"]={ "Ι","̔" },
+ ["Ἲ"]={ "Ἰ","̀" },
+ ["Ἳ"]={ "Ἱ","̀" },
+ ["Ἴ"]={ "Ἰ","́" },
+ ["Ἵ"]={ "Ἱ","́" },
+ ["Ἶ"]={ "Ἰ","͂" },
+ ["Ἷ"]={ "Ἱ","͂" },
+ ["ὀ"]={ "ο","̓" },
+ ["ὁ"]={ "ο","̔" },
+ ["ὂ"]={ "ὀ","̀" },
+ ["ὃ"]={ "ὁ","̀" },
+ ["ὄ"]={ "ὀ","́" },
+ ["ὅ"]={ "ὁ","́" },
+ ["Ὀ"]={ "Ο","̓" },
+ ["Ὁ"]={ "Ο","̔" },
+ ["Ὂ"]={ "Ὀ","̀" },
+ ["Ὃ"]={ "Ὁ","̀" },
+ ["Ὄ"]={ "Ὀ","́" },
+ ["Ὅ"]={ "Ὁ","́" },
+ ["ὐ"]={ "υ","̓" },
+ ["ὑ"]={ "υ","̔" },
+ ["ὒ"]={ "ὐ","̀" },
+ ["ὓ"]={ "ὑ","̀" },
+ ["ὔ"]={ "ὐ","́" },
+ ["ὕ"]={ "ὑ","́" },
+ ["ὖ"]={ "ὐ","͂" },
+ ["ὗ"]={ "ὑ","͂" },
+ ["Ὑ"]={ "Υ","̔" },
+ ["Ὓ"]={ "Ὑ","̀" },
+ ["Ὕ"]={ "Ὑ","́" },
+ ["Ὗ"]={ "Ὑ","͂" },
+ ["ὠ"]={ "ω","̓" },
+ ["ὡ"]={ "ω","̔" },
+ ["ὢ"]={ "ὠ","̀" },
+ ["ὣ"]={ "ὡ","̀" },
+ ["ὤ"]={ "ὠ","́" },
+ ["ὥ"]={ "ὡ","́" },
+ ["ὦ"]={ "ὠ","͂" },
+ ["ὧ"]={ "ὡ","͂" },
+ ["Ὠ"]={ "Ω","̓" },
+ ["Ὡ"]={ "Ω","̔" },
+ ["Ὢ"]={ "Ὠ","̀" },
+ ["Ὣ"]={ "Ὡ","̀" },
+ ["Ὤ"]={ "Ὠ","́" },
+ ["Ὥ"]={ "Ὡ","́" },
+ ["Ὦ"]={ "Ὠ","͂" },
+ ["Ὧ"]={ "Ὡ","͂" },
+ ["ὰ"]={ "α","̀" },
+ ["ὲ"]={ "ε","̀" },
+ ["ὴ"]={ "η","̀" },
+ ["ὶ"]={ "ι","̀" },
+ ["ὸ"]={ "ο","̀" },
+ ["ὺ"]={ "υ","̀" },
+ ["ὼ"]={ "ω","̀" },
+ ["ᾀ"]={ "ἀ","ͅ" },
+ ["ᾁ"]={ "ἁ","ͅ" },
+ ["ᾂ"]={ "ἂ","ͅ" },
+ ["ᾃ"]={ "ἃ","ͅ" },
+ ["ᾄ"]={ "ἄ","ͅ" },
+ ["ᾅ"]={ "ἅ","ͅ" },
+ ["ᾆ"]={ "ἆ","ͅ" },
+ ["ᾇ"]={ "ἇ","ͅ" },
+ ["ᾈ"]={ "Ἀ","ͅ" },
+ ["ᾉ"]={ "Ἁ","ͅ" },
+ ["ᾊ"]={ "Ἂ","ͅ" },
+ ["ᾋ"]={ "Ἃ","ͅ" },
+ ["ᾌ"]={ "Ἄ","ͅ" },
+ ["ᾍ"]={ "Ἅ","ͅ" },
+ ["ᾎ"]={ "Ἆ","ͅ" },
+ ["ᾏ"]={ "Ἇ","ͅ" },
+ ["ᾐ"]={ "ἠ","ͅ" },
+ ["ᾑ"]={ "ἡ","ͅ" },
+ ["ᾒ"]={ "ἢ","ͅ" },
+ ["ᾓ"]={ "ἣ","ͅ" },
+ ["ᾔ"]={ "ἤ","ͅ" },
+ ["ᾕ"]={ "ἥ","ͅ" },
+ ["ᾖ"]={ "ἦ","ͅ" },
+ ["ᾗ"]={ "ἧ","ͅ" },
+ ["ᾘ"]={ "Ἠ","ͅ" },
+ ["ᾙ"]={ "Ἡ","ͅ" },
+ ["ᾚ"]={ "Ἢ","ͅ" },
+ ["ᾛ"]={ "Ἣ","ͅ" },
+ ["ᾜ"]={ "Ἤ","ͅ" },
+ ["ᾝ"]={ "Ἥ","ͅ" },
+ ["ᾞ"]={ "Ἦ","ͅ" },
+ ["ᾟ"]={ "Ἧ","ͅ" },
+ ["ᾠ"]={ "ὠ","ͅ" },
+ ["ᾡ"]={ "ὡ","ͅ" },
+ ["ᾢ"]={ "ὢ","ͅ" },
+ ["ᾣ"]={ "ὣ","ͅ" },
+ ["ᾤ"]={ "ὤ","ͅ" },
+ ["ᾥ"]={ "ὥ","ͅ" },
+ ["ᾦ"]={ "ὦ","ͅ" },
+ ["ᾧ"]={ "ὧ","ͅ" },
+ ["ᾨ"]={ "Ὠ","ͅ" },
+ ["ᾩ"]={ "Ὡ","ͅ" },
+ ["ᾪ"]={ "Ὢ","ͅ" },
+ ["ᾫ"]={ "Ὣ","ͅ" },
+ ["ᾬ"]={ "Ὤ","ͅ" },
+ ["ᾭ"]={ "Ὥ","ͅ" },
+ ["ᾮ"]={ "Ὦ","ͅ" },
+ ["ᾯ"]={ "Ὧ","ͅ" },
+ ["ᾰ"]={ "α","̆" },
+ ["ᾱ"]={ "α","̄" },
+ ["ᾲ"]={ "ὰ","ͅ" },
+ ["ᾳ"]={ "α","ͅ" },
+ ["ᾴ"]={ "ά","ͅ" },
+ ["ᾶ"]={ "α","͂" },
+ ["ᾷ"]={ "ᾶ","ͅ" },
+ ["Ᾰ"]={ "Α","̆" },
+ ["Ᾱ"]={ "Α","̄" },
+ ["Ὰ"]={ "Α","̀" },
+ ["ᾼ"]={ "Α","ͅ" },
+ ["῁"]={ "¨","͂" },
+ ["ῂ"]={ "ὴ","ͅ" },
+ ["ῃ"]={ "η","ͅ" },
+ ["ῄ"]={ "ή","ͅ" },
+ ["ῆ"]={ "η","͂" },
+ ["ῇ"]={ "ῆ","ͅ" },
+ ["Ὲ"]={ "Ε","̀" },
+ ["Ὴ"]={ "Η","̀" },
+ ["ῌ"]={ "Η","ͅ" },
+ ["῍"]={ "᾿","̀" },
+ ["῎"]={ "᾿","́" },
+ ["῏"]={ "᾿","͂" },
+ ["ῐ"]={ "ι","̆" },
+ ["ῑ"]={ "ι","̄" },
+ ["ῒ"]={ "ϊ","̀" },
+ ["ῖ"]={ "ι","͂" },
+ ["ῗ"]={ "ϊ","͂" },
+ ["Ῐ"]={ "Ι","̆" },
+ ["Ῑ"]={ "Ι","̄" },
+ ["Ὶ"]={ "Ι","̀" },
+ ["῝"]={ "῾","̀" },
+ ["῞"]={ "῾","́" },
+ ["῟"]={ "῾","͂" },
+ ["ῠ"]={ "υ","̆" },
+ ["ῡ"]={ "υ","̄" },
+ ["ῢ"]={ "ϋ","̀" },
+ ["ῤ"]={ "ρ","̓" },
+ ["ῥ"]={ "ρ","̔" },
+ ["ῦ"]={ "υ","͂" },
+ ["ῧ"]={ "ϋ","͂" },
+ ["Ῠ"]={ "Υ","̆" },
+ ["Ῡ"]={ "Υ","̄" },
+ ["Ὺ"]={ "Υ","̀" },
+ ["Ῥ"]={ "Ρ","̔" },
+ ["῭"]={ "¨","̀" },
+ ["ῲ"]={ "ὼ","ͅ" },
+ ["ῳ"]={ "ω","ͅ" },
+ ["ῴ"]={ "ώ","ͅ" },
+ ["ῶ"]={ "ω","͂" },
+ ["ῷ"]={ "ῶ","ͅ" },
+ ["Ὸ"]={ "Ο","̀" },
+ ["Ὼ"]={ "Ω","̀" },
+ ["ῼ"]={ "Ω","ͅ" },
+ ["↚"]={ "←","̸" },
+ ["↛"]={ "→","̸" },
+ ["↮"]={ "↔","̸" },
+ ["⇍"]={ "⇐","̸" },
+ ["⇎"]={ "⇔","̸" },
+ ["⇏"]={ "⇒","̸" },
+ ["∄"]={ "∃","̸" },
+ ["∉"]={ "∈","̸" },
+ ["∌"]={ "∋","̸" },
+ ["∤"]={ "∣","̸" },
+ ["∦"]={ "∥","̸" },
+ ["≁"]={ "∼","̸" },
+ ["≄"]={ "≃","̸" },
+ ["≇"]={ "≅","̸" },
+ ["≉"]={ "≈","̸" },
+ ["≠"]={ "=","̸" },
+ ["≢"]={ "≡","̸" },
+ ["≭"]={ "≍","̸" },
+ ["≮"]={ "<","̸" },
+ ["≯"]={ ">","̸" },
+ ["≰"]={ "≤","̸" },
+ ["≱"]={ "≥","̸" },
+ ["≴"]={ "≲","̸" },
+ ["≵"]={ "≳","̸" },
+ ["≸"]={ "≶","̸" },
+ ["≹"]={ "≷","̸" },
+ ["⊀"]={ "≺","̸" },
+ ["⊁"]={ "≻","̸" },
+ ["⊄"]={ "⊂","̸" },
+ ["⊅"]={ "⊃","̸" },
+ ["⊈"]={ "⊆","̸" },
+ ["⊉"]={ "⊇","̸" },
+ ["⊬"]={ "⊢","̸" },
+ ["⊭"]={ "⊨","̸" },
+ ["⊮"]={ "⊩","̸" },
+ ["⊯"]={ "⊫","̸" },
+ ["⋠"]={ "≼","̸" },
+ ["⋡"]={ "≽","̸" },
+ ["⋢"]={ "⊑","̸" },
+ ["⋣"]={ "⊒","̸" },
+ ["⋪"]={ "⊲","̸" },
+ ["⋫"]={ "⊳","̸" },
+ ["⋬"]={ "⊴","̸" },
+ ["⋭"]={ "⊵","̸" },
+ ["⫝̸"]={ "⫝","̸" },
+ ["が"]={ "か","゙" },
+ ["ぎ"]={ "き","゙" },
+ ["ぐ"]={ "く","゙" },
+ ["げ"]={ "け","゙" },
+ ["ご"]={ "こ","゙" },
+ ["ざ"]={ "さ","゙" },
+ ["じ"]={ "し","゙" },
+ ["ず"]={ "す","゙" },
+ ["ぜ"]={ "せ","゙" },
+ ["ぞ"]={ "そ","゙" },
+ ["だ"]={ "た","゙" },
+ ["ぢ"]={ "ち","゙" },
+ ["づ"]={ "つ","゙" },
+ ["で"]={ "て","゙" },
+ ["ど"]={ "と","゙" },
+ ["ば"]={ "は","゙" },
+ ["ぱ"]={ "は","゚" },
+ ["び"]={ "ひ","゙" },
+ ["ぴ"]={ "ひ","゚" },
+ ["ぶ"]={ "ふ","゙" },
+ ["ぷ"]={ "ふ","゚" },
+ ["べ"]={ "へ","゙" },
+ ["ぺ"]={ "へ","゚" },
+ ["ぼ"]={ "ほ","゙" },
+ ["ぽ"]={ "ほ","゚" },
+ ["ゔ"]={ "う","゙" },
+ ["ゞ"]={ "ゝ","゙" },
+ ["ガ"]={ "カ","゙" },
+ ["ギ"]={ "キ","゙" },
+ ["グ"]={ "ク","゙" },
+ ["ゲ"]={ "ケ","゙" },
+ ["ゴ"]={ "コ","゙" },
+ ["ザ"]={ "サ","゙" },
+ ["ジ"]={ "シ","゙" },
+ ["ズ"]={ "ス","゙" },
+ ["ゼ"]={ "セ","゙" },
+ ["ゾ"]={ "ソ","゙" },
+ ["ダ"]={ "タ","゙" },
+ ["ヂ"]={ "チ","゙" },
+ ["ヅ"]={ "ツ","゙" },
+ ["デ"]={ "テ","゙" },
+ ["ド"]={ "ト","゙" },
+ ["バ"]={ "ハ","゙" },
+ ["パ"]={ "ハ","゚" },
+ ["ビ"]={ "ヒ","゙" },
+ ["ピ"]={ "ヒ","゚" },
+ ["ブ"]={ "フ","゙" },
+ ["プ"]={ "フ","゚" },
+ ["ベ"]={ "ヘ","゙" },
+ ["ペ"]={ "ヘ","゚" },
+ ["ボ"]={ "ホ","゙" },
+ ["ポ"]={ "ホ","゚" },
+ ["ヴ"]={ "ウ","゙" },
+ ["ヷ"]={ "ワ","゙" },
+ ["ヸ"]={ "ヰ","゙" },
+ ["ヹ"]={ "ヱ","゙" },
+ ["ヺ"]={ "ヲ","゙" },
+ ["ヾ"]={ "ヽ","゙" },
+ ["יִ"]={ "י","ִ" },
+ ["ײַ"]={ "ײ","ַ" },
+ ["שׁ"]={ "ש","ׁ" },
+ ["שׂ"]={ "ש","ׂ" },
+ ["שּׁ"]={ "שּ","ׁ" },
+ ["שּׂ"]={ "שּ","ׂ" },
+ ["אַ"]={ "א","ַ" },
+ ["אָ"]={ "א","ָ" },
+ ["אּ"]={ "א","ּ" },
+ ["בּ"]={ "ב","ּ" },
+ ["גּ"]={ "ג","ּ" },
+ ["דּ"]={ "ד","ּ" },
+ ["הּ"]={ "ה","ּ" },
+ ["וּ"]={ "ו","ּ" },
+ ["זּ"]={ "ז","ּ" },
+ ["טּ"]={ "ט","ּ" },
+ ["יּ"]={ "י","ּ" },
+ ["ךּ"]={ "ך","ּ" },
+ ["כּ"]={ "כ","ּ" },
+ ["לּ"]={ "ל","ּ" },
+ ["מּ"]={ "מ","ּ" },
+ ["נּ"]={ "נ","ּ" },
+ ["סּ"]={ "ס","ּ" },
+ ["ףּ"]={ "ף","ּ" },
+ ["פּ"]={ "פ","ּ" },
+ ["צּ"]={ "צ","ּ" },
+ ["קּ"]={ "ק","ּ" },
+ ["רּ"]={ "ר","ּ" },
+ ["שּ"]={ "ש","ּ" },
+ ["תּ"]={ "ת","ּ" },
+ ["וֹ"]={ "ו","ֹ" },
+ ["בֿ"]={ "ב","ֿ" },
+ ["כֿ"]={ "כ","ֿ" },
+ ["פֿ"]={ "פ","ֿ" },
+ ["𑂚"]={ "𑂙","𑂺" },
+ ["𑂜"]={ "𑂛","𑂺" },
+ ["𑂫"]={ "𑂥","𑂺" },
+ ["𑄮"]={ "𑄱","𑄧" },
+ ["𑄯"]={ "𑄲","𑄧" },
+ ["𑍋"]={ "𑍇","𑌾" },
+ ["𑍌"]={ "𑍇","𑍗" },
+ ["𑒻"]={ "𑒹","𑒺" },
+ ["𑒼"]={ "𑒹","𑒰" },
+ ["𑒾"]={ "𑒹","𑒽" },
+ ["𑖺"]={ "𑖸","𑖯" },
+ ["𑖻"]={ "𑖹","𑖯" },
+ ["𝅗𝅥"]={ "𝅗","𝅥" },
+ ["𝅘𝅥"]={ "𝅘","𝅥" },
+ ["𝅘𝅥𝅮"]={ "𝅘𝅥","𝅮" },
+ ["𝅘𝅥𝅯"]={ "𝅘𝅥","𝅯" },
+ ["𝅘𝅥𝅰"]={ "𝅘𝅥","𝅰" },
+ ["𝅘𝅥𝅱"]={ "𝅘𝅥","𝅱" },
+ ["𝅘𝅥𝅲"]={ "𝅘𝅥","𝅲" },
+ ["𝆹𝅥"]={ "𝆹","𝅥" },
+ ["𝆺𝅥"]={ "𝆺","𝅥" },
+ ["𝆹𝅥𝅮"]={ "𝆹𝅥","𝅮" },
+ ["𝆺𝅥𝅮"]={ "𝆺𝅥","𝅮" },
+ ["𝆹𝅥𝅯"]={ "𝆹𝅥","𝅯" },
+ ["𝆺𝅥𝅯"]={ "𝆺𝅥","𝅯" },
+   },
+  },
+  {
+   ["data"]={
+ ["À"]={ "A","̀" },
+ ["Á"]={ "A","́" },
+ ["Â"]={ "A","̂" },
+ ["Ã"]={ "A","̃" },
+ ["Ä"]={ "A","̈" },
+ ["Å"]={ "A","̊" },
+ ["Ç"]={ "C","̧" },
+ ["È"]={ "E","̀" },
+ ["É"]={ "E","́" },
+ ["Ê"]={ "E","̂" },
+ ["Ë"]={ "E","̈" },
+ ["Ì"]={ "I","̀" },
+ ["Í"]={ "I","́" },
+ ["Î"]={ "I","̂" },
+ ["Ï"]={ "I","̈" },
+ ["Ñ"]={ "N","̃" },
+ ["Ò"]={ "O","̀" },
+ ["Ó"]={ "O","́" },
+ ["Ô"]={ "O","̂" },
+ ["Õ"]={ "O","̃" },
+ ["Ö"]={ "O","̈" },
+ ["Ù"]={ "U","̀" },
+ ["Ú"]={ "U","́" },
+ ["Û"]={ "U","̂" },
+ ["Ü"]={ "U","̈" },
+ ["Ý"]={ "Y","́" },
+ ["à"]={ "a","̀" },
+ ["á"]={ "a","́" },
+ ["â"]={ "a","̂" },
+ ["ã"]={ "a","̃" },
+ ["ä"]={ "a","̈" },
+ ["å"]={ "a","̊" },
+ ["ç"]={ "c","̧" },
+ ["è"]={ "e","̀" },
+ ["é"]={ "e","́" },
+ ["ê"]={ "e","̂" },
+ ["ë"]={ "e","̈" },
+ ["ì"]={ "i","̀" },
+ ["í"]={ "i","́" },
+ ["î"]={ "i","̂" },
+ ["ï"]={ "i","̈" },
+ ["ñ"]={ "n","̃" },
+ ["ò"]={ "o","̀" },
+ ["ó"]={ "o","́" },
+ ["ô"]={ "o","̂" },
+ ["õ"]={ "o","̃" },
+ ["ö"]={ "o","̈" },
+ ["ù"]={ "u","̀" },
+ ["ú"]={ "u","́" },
+ ["û"]={ "u","̂" },
+ ["ü"]={ "u","̈" },
+ ["ý"]={ "y","́" },
+ ["ÿ"]={ "y","̈" },
+ ["Ā"]={ "A","̄" },
+ ["ā"]={ "a","̄" },
+ ["Ă"]={ "A","̆" },
+ ["ă"]={ "a","̆" },
+ ["Ą"]={ "A","̨" },
+ ["ą"]={ "a","̨" },
+ ["Ć"]={ "C","́" },
+ ["ć"]={ "c","́" },
+ ["Ĉ"]={ "C","̂" },
+ ["ĉ"]={ "c","̂" },
+ ["Ċ"]={ "C","̇" },
+ ["ċ"]={ "c","̇" },
+ ["Č"]={ "C","̌" },
+ ["č"]={ "c","̌" },
+ ["Ď"]={ "D","̌" },
+ ["ď"]={ "d","̌" },
+ ["Ē"]={ "E","̄" },
+ ["ē"]={ "e","̄" },
+ ["Ĕ"]={ "E","̆" },
+ ["ĕ"]={ "e","̆" },
+ ["Ė"]={ "E","̇" },
+ ["ė"]={ "e","̇" },
+ ["Ę"]={ "E","̨" },
+ ["ę"]={ "e","̨" },
+ ["Ě"]={ "E","̌" },
+ ["ě"]={ "e","̌" },
+ ["Ĝ"]={ "G","̂" },
+ ["ĝ"]={ "g","̂" },
+ ["Ğ"]={ "G","̆" },
+ ["ğ"]={ "g","̆" },
+ ["Ġ"]={ "G","̇" },
+ ["ġ"]={ "g","̇" },
+ ["Ģ"]={ "G","̧" },
+ ["ģ"]={ "g","̧" },
+ ["Ĥ"]={ "H","̂" },
+ ["ĥ"]={ "h","̂" },
+ ["Ĩ"]={ "I","̃" },
+ ["ĩ"]={ "i","̃" },
+ ["Ī"]={ "I","̄" },
+ ["ī"]={ "i","̄" },
+ ["Ĭ"]={ "I","̆" },
+ ["ĭ"]={ "i","̆" },
+ ["Į"]={ "I","̨" },
+ ["į"]={ "i","̨" },
+ ["İ"]={ "I","̇" },
+ ["Ĵ"]={ "J","̂" },
+ ["ĵ"]={ "j","̂" },
+ ["Ķ"]={ "K","̧" },
+ ["ķ"]={ "k","̧" },
+ ["Ĺ"]={ "L","́" },
+ ["ĺ"]={ "l","́" },
+ ["Ļ"]={ "L","̧" },
+ ["ļ"]={ "l","̧" },
+ ["Ľ"]={ "L","̌" },
+ ["ľ"]={ "l","̌" },
+ ["Ń"]={ "N","́" },
+ ["ń"]={ "n","́" },
+ ["Ņ"]={ "N","̧" },
+ ["ņ"]={ "n","̧" },
+ ["Ň"]={ "N","̌" },
+ ["ň"]={ "n","̌" },
+ ["Ō"]={ "O","̄" },
+ ["ō"]={ "o","̄" },
+ ["Ŏ"]={ "O","̆" },
+ ["ŏ"]={ "o","̆" },
+ ["Ő"]={ "O","̋" },
+ ["ő"]={ "o","̋" },
+ ["Ŕ"]={ "R","́" },
+ ["ŕ"]={ "r","́" },
+ ["Ŗ"]={ "R","̧" },
+ ["ŗ"]={ "r","̧" },
+ ["Ř"]={ "R","̌" },
+ ["ř"]={ "r","̌" },
+ ["Ś"]={ "S","́" },
+ ["ś"]={ "s","́" },
+ ["Ŝ"]={ "S","̂" },
+ ["ŝ"]={ "s","̂" },
+ ["Ş"]={ "S","̧" },
+ ["ş"]={ "s","̧" },
+ ["Š"]={ "S","̌" },
+ ["š"]={ "s","̌" },
+ ["Ţ"]={ "T","̧" },
+ ["ţ"]={ "t","̧" },
+ ["Ť"]={ "T","̌" },
+ ["ť"]={ "t","̌" },
+ ["Ũ"]={ "U","̃" },
+ ["ũ"]={ "u","̃" },
+ ["Ū"]={ "U","̄" },
+ ["ū"]={ "u","̄" },
+ ["Ŭ"]={ "U","̆" },
+ ["ŭ"]={ "u","̆" },
+ ["Ů"]={ "U","̊" },
+ ["ů"]={ "u","̊" },
+ ["Ű"]={ "U","̋" },
+ ["ű"]={ "u","̋" },
+ ["Ų"]={ "U","̨" },
+ ["ų"]={ "u","̨" },
+ ["Ŵ"]={ "W","̂" },
+ ["ŵ"]={ "w","̂" },
+ ["Ŷ"]={ "Y","̂" },
+ ["ŷ"]={ "y","̂" },
+ ["Ÿ"]={ "Y","̈" },
+ ["Ź"]={ "Z","́" },
+ ["ź"]={ "z","́" },
+ ["Ż"]={ "Z","̇" },
+ ["ż"]={ "z","̇" },
+ ["Ž"]={ "Z","̌" },
+ ["ž"]={ "z","̌" },
+ ["Ơ"]={ "O","̛" },
+ ["ơ"]={ "o","̛" },
+ ["Ư"]={ "U","̛" },
+ ["ư"]={ "u","̛" },
+ ["Ǎ"]={ "A","̌" },
+ ["ǎ"]={ "a","̌" },
+ ["Ǐ"]={ "I","̌" },
+ ["ǐ"]={ "i","̌" },
+ ["Ǒ"]={ "O","̌" },
+ ["ǒ"]={ "o","̌" },
+ ["Ǔ"]={ "U","̌" },
+ ["ǔ"]={ "u","̌" },
+ ["Ǖ"]={ "Ü","̄" },
+ ["ǖ"]={ "ü","̄" },
+ ["Ǘ"]={ "Ü","́" },
+ ["ǘ"]={ "ü","́" },
+ ["Ǚ"]={ "Ü","̌" },
+ ["ǚ"]={ "ü","̌" },
+ ["Ǜ"]={ "Ü","̀" },
+ ["ǜ"]={ "ü","̀" },
+ ["Ǟ"]={ "Ä","̄" },
+ ["ǟ"]={ "ä","̄" },
+ ["Ǡ"]={ "Ȧ","̄" },
+ ["ǡ"]={ "ȧ","̄" },
+ ["Ǣ"]={ "Æ","̄" },
+ ["ǣ"]={ "æ","̄" },
+ ["Ǧ"]={ "G","̌" },
+ ["ǧ"]={ "g","̌" },
+ ["Ǩ"]={ "K","̌" },
+ ["ǩ"]={ "k","̌" },
+ ["Ǫ"]={ "O","̨" },
+ ["ǫ"]={ "o","̨" },
+ ["Ǭ"]={ "Ǫ","̄" },
+ ["ǭ"]={ "ǫ","̄" },
+ ["Ǯ"]={ "Ʒ","̌" },
+ ["ǯ"]={ "ʒ","̌" },
+ ["ǰ"]={ "j","̌" },
+ ["Ǵ"]={ "G","́" },
+ ["ǵ"]={ "g","́" },
+ ["Ǹ"]={ "N","̀" },
+ ["ǹ"]={ "n","̀" },
+ ["Ǻ"]={ "Å","́" },
+ ["ǻ"]={ "å","́" },
+ ["Ǽ"]={ "Æ","́" },
+ ["ǽ"]={ "æ","́" },
+ ["Ǿ"]={ "Ø","́" },
+ ["ǿ"]={ "ø","́" },
+ ["Ȁ"]={ "A","̏" },
+ ["ȁ"]={ "a","̏" },
+ ["Ȃ"]={ "A","̑" },
+ ["ȃ"]={ "a","̑" },
+ ["Ȅ"]={ "E","̏" },
+ ["ȅ"]={ "e","̏" },
+ ["Ȇ"]={ "E","̑" },
+ ["ȇ"]={ "e","̑" },
+ ["Ȉ"]={ "I","̏" },
+ ["ȉ"]={ "i","̏" },
+ ["Ȋ"]={ "I","̑" },
+ ["ȋ"]={ "i","̑" },
+ ["Ȍ"]={ "O","̏" },
+ ["ȍ"]={ "o","̏" },
+ ["Ȏ"]={ "O","̑" },
+ ["ȏ"]={ "o","̑" },
+ ["Ȑ"]={ "R","̏" },
+ ["ȑ"]={ "r","̏" },
+ ["Ȓ"]={ "R","̑" },
+ ["ȓ"]={ "r","̑" },
+ ["Ȕ"]={ "U","̏" },
+ ["ȕ"]={ "u","̏" },
+ ["Ȗ"]={ "U","̑" },
+ ["ȗ"]={ "u","̑" },
+ ["Ș"]={ "S","̦" },
+ ["ș"]={ "s","̦" },
+ ["Ț"]={ "T","̦" },
+ ["ț"]={ "t","̦" },
+ ["Ȟ"]={ "H","̌" },
+ ["ȟ"]={ "h","̌" },
+ ["Ȧ"]={ "A","̇" },
+ ["ȧ"]={ "a","̇" },
+ ["Ȩ"]={ "E","̧" },
+ ["ȩ"]={ "e","̧" },
+ ["Ȫ"]={ "Ö","̄" },
+ ["ȫ"]={ "ö","̄" },
+ ["Ȭ"]={ "Õ","̄" },
+ ["ȭ"]={ "õ","̄" },
+ ["Ȯ"]={ "O","̇" },
+ ["ȯ"]={ "o","̇" },
+ ["Ȱ"]={ "Ȯ","̄" },
+ ["ȱ"]={ "ȯ","̄" },
+ ["Ȳ"]={ "Y","̄" },
+ ["ȳ"]={ "y","̄" },
+ ["̈́"]={ "̈","́" },
+ ["΅"]={ "¨","́" },
+ ["Ά"]={ "Α","́" },
+ ["Έ"]={ "Ε","́" },
+ ["Ή"]={ "Η","́" },
+ ["Ί"]={ "Ι","́" },
+ ["Ό"]={ "Ο","́" },
+ ["Ύ"]={ "Υ","́" },
+ ["Ώ"]={ "Ω","́" },
+ ["ΐ"]={ "ϊ","́" },
+ ["Ϊ"]={ "Ι","̈" },
+ ["Ϋ"]={ "Υ","̈" },
+ ["ά"]={ "α","́" },
+ ["έ"]={ "ε","́" },
+ ["ή"]={ "η","́" },
+ ["ί"]={ "ι","́" },
+ ["ΰ"]={ "ϋ","́" },
+ ["ϊ"]={ "ι","̈" },
+ ["ϋ"]={ "υ","̈" },
+ ["ό"]={ "ο","́" },
+ ["ύ"]={ "υ","́" },
+ ["ώ"]={ "ω","́" },
+ ["ϓ"]={ "ϒ","́" },
+ ["ϔ"]={ "ϒ","̈" },
+ ["Ѐ"]={ "Е","̀" },
+ ["Ё"]={ "Е","̈" },
+ ["Ѓ"]={ "Г","́" },
+ ["Ї"]={ "І","̈" },
+ ["Ќ"]={ "К","́" },
+ ["Ѝ"]={ "И","̀" },
+ ["Ў"]={ "У","̆" },
+ ["Й"]={ "И","̆" },
+ ["й"]={ "и","̆" },
+ ["ѐ"]={ "е","̀" },
+ ["ё"]={ "е","̈" },
+ ["ѓ"]={ "г","́" },
+ ["ї"]={ "і","̈" },
+ ["ќ"]={ "к","́" },
+ ["ѝ"]={ "и","̀" },
+ ["ў"]={ "у","̆" },
+ ["Ѷ"]={ "Ѵ","̏" },
+ ["ѷ"]={ "ѵ","̏" },
+ ["Ӂ"]={ "Ж","̆" },
+ ["ӂ"]={ "ж","̆" },
+ ["Ӑ"]={ "А","̆" },
+ ["ӑ"]={ "а","̆" },
+ ["Ӓ"]={ "А","̈" },
+ ["ӓ"]={ "а","̈" },
+ ["Ӗ"]={ "Е","̆" },
+ ["ӗ"]={ "е","̆" },
+ ["Ӛ"]={ "Ә","̈" },
+ ["ӛ"]={ "ә","̈" },
+ ["Ӝ"]={ "Ж","̈" },
+ ["ӝ"]={ "ж","̈" },
+ ["Ӟ"]={ "З","̈" },
+ ["ӟ"]={ "з","̈" },
+ ["Ӣ"]={ "И","̄" },
+ ["ӣ"]={ "и","̄" },
+ ["Ӥ"]={ "И","̈" },
+ ["ӥ"]={ "и","̈" },
+ ["Ӧ"]={ "О","̈" },
+ ["ӧ"]={ "о","̈" },
+ ["Ӫ"]={ "Ө","̈" },
+ ["ӫ"]={ "ө","̈" },
+ ["Ӭ"]={ "Э","̈" },
+ ["ӭ"]={ "э","̈" },
+ ["Ӯ"]={ "У","̄" },
+ ["ӯ"]={ "у","̄" },
+ ["Ӱ"]={ "У","̈" },
+ ["ӱ"]={ "у","̈" },
+ ["Ӳ"]={ "У","̋" },
+ ["ӳ"]={ "у","̋" },
+ ["Ӵ"]={ "Ч","̈" },
+ ["ӵ"]={ "ч","̈" },
+ ["Ӹ"]={ "Ы","̈" },
+ ["ӹ"]={ "ы","̈" },
+ ["آ"]={ "ا","ٓ" },
+ ["أ"]={ "ا","ٔ" },
+ ["ؤ"]={ "و","ٔ" },
+ ["إ"]={ "ا","ٕ" },
+ ["ئ"]={ "ي","ٔ" },
+ ["ۀ"]={ "ە","ٔ" },
+ ["ۂ"]={ "ہ","ٔ" },
+ ["ۓ"]={ "ے","ٔ" },
+ ["ऩ"]={ "न","़" },
+ ["ऱ"]={ "र","़" },
+ ["ऴ"]={ "ळ","़" },
+ ["क़"]={ "क","़" },
+ ["ख़"]={ "ख","़" },
+ ["ग़"]={ "ग","़" },
+ ["ज़"]={ "ज","़" },
+ ["ड़"]={ "ड","़" },
+ ["ढ़"]={ "ढ","़" },
+ ["फ़"]={ "फ","़" },
+ ["य़"]={ "य","़" },
+ ["ো"]={ "ে","া" },
+ ["ৌ"]={ "ে","ৗ" },
+ ["ড়"]={ "ড","়" },
+ ["ঢ়"]={ "ঢ","়" },
+ ["য়"]={ "য","়" },
+ ["ਲ਼"]={ "ਲ","਼" },
+ ["ਸ਼"]={ "ਸ","਼" },
+ ["ਖ਼"]={ "ਖ","਼" },
+ ["ਗ਼"]={ "ਗ","਼" },
+ ["ਜ਼"]={ "ਜ","਼" },
+ ["ਫ਼"]={ "ਫ","਼" },
+ ["ୈ"]={ "େ","ୖ" },
+ ["ୋ"]={ "େ","ା" },
+ ["ୌ"]={ "େ","ୗ" },
+ ["ଡ଼"]={ "ଡ","଼" },
+ ["ଢ଼"]={ "ଢ","଼" },
+ ["ஔ"]={ "ஒ","ௗ" },
+ ["ொ"]={ "ெ","ா" },
+ ["ோ"]={ "ே","ா" },
+ ["ௌ"]={ "ெ","ௗ" },
+ ["ై"]={ "ె","ౖ" },
+ ["ೀ"]={ "ಿ","ೕ" },
+ ["ೇ"]={ "ೆ","ೕ" },
+ ["ೈ"]={ "ೆ","ೖ" },
+ ["ೊ"]={ "ೆ","ೂ" },
+ ["ೋ"]={ "ೊ","ೕ" },
+ ["ൊ"]={ "െ","ാ" },
+ ["ോ"]={ "േ","ാ" },
+ ["ൌ"]={ "െ","ൗ" },
+ ["ේ"]={ "ෙ","්" },
+ ["ො"]={ "ෙ","ා" },
+ ["ෝ"]={ "ො","්" },
+ ["ෞ"]={ "ෙ","ෟ" },
+ ["གྷ"]={ "ག","ྷ" },
+ ["ཌྷ"]={ "ཌ","ྷ" },
+ ["དྷ"]={ "ད","ྷ" },
+ ["བྷ"]={ "བ","ྷ" },
+ ["ཛྷ"]={ "ཛ","ྷ" },
+ ["ཀྵ"]={ "ཀ","ྵ" },
+ ["ཱི"]={ "ཱ","ི" },
+ ["ཱུ"]={ "ཱ","ུ" },
+ ["ྲྀ"]={ "ྲ","ྀ" },
+ ["ླྀ"]={ "ླ","ྀ" },
+ ["ཱྀ"]={ "ཱ","ྀ" },
+ ["ྒྷ"]={ "ྒ","ྷ" },
+ ["ྜྷ"]={ "ྜ","ྷ" },
+ ["ྡྷ"]={ "ྡ","ྷ" },
+ ["ྦྷ"]={ "ྦ","ྷ" },
+ ["ྫྷ"]={ "ྫ","ྷ" },
+ ["ྐྵ"]={ "ྐ","ྵ" },
+ ["ဦ"]={ "ဥ","ီ" },
+ ["ᬆ"]={ "ᬅ","ᬵ" },
+ ["ᬈ"]={ "ᬇ","ᬵ" },
+ ["ᬊ"]={ "ᬉ","ᬵ" },
+ ["ᬌ"]={ "ᬋ","ᬵ" },
+ ["ᬎ"]={ "ᬍ","ᬵ" },
+ ["ᬒ"]={ "ᬑ","ᬵ" },
+ ["ᬻ"]={ "ᬺ","ᬵ" },
+ ["ᬽ"]={ "ᬼ","ᬵ" },
+ ["ᭀ"]={ "ᬾ","ᬵ" },
+ ["ᭁ"]={ "ᬿ","ᬵ" },
+ ["ᭃ"]={ "ᭂ","ᬵ" },
+ ["Ḁ"]={ "A","̥" },
+ ["ḁ"]={ "a","̥" },
+ ["Ḃ"]={ "B","̇" },
+ ["ḃ"]={ "b","̇" },
+ ["Ḅ"]={ "B","̣" },
+ ["ḅ"]={ "b","̣" },
+ ["Ḇ"]={ "B","̱" },
+ ["ḇ"]={ "b","̱" },
+ ["Ḉ"]={ "Ç","́" },
+ ["ḉ"]={ "ç","́" },
+ ["Ḋ"]={ "D","̇" },
+ ["ḋ"]={ "d","̇" },
+ ["Ḍ"]={ "D","̣" },
+ ["ḍ"]={ "d","̣" },
+ ["Ḏ"]={ "D","̱" },
+ ["ḏ"]={ "d","̱" },
+ ["Ḑ"]={ "D","̧" },
+ ["ḑ"]={ "d","̧" },
+ ["Ḓ"]={ "D","̭" },
+ ["ḓ"]={ "d","̭" },
+ ["Ḕ"]={ "Ē","̀" },
+ ["ḕ"]={ "ē","̀" },
+ ["Ḗ"]={ "Ē","́" },
+ ["ḗ"]={ "ē","́" },
+ ["Ḙ"]={ "E","̭" },
+ ["ḙ"]={ "e","̭" },
+ ["Ḛ"]={ "E","̰" },
+ ["ḛ"]={ "e","̰" },
+ ["Ḝ"]={ "Ȩ","̆" },
+ ["ḝ"]={ "ȩ","̆" },
+ ["Ḟ"]={ "F","̇" },
+ ["ḟ"]={ "f","̇" },
+ ["Ḡ"]={ "G","̄" },
+ ["ḡ"]={ "g","̄" },
+ ["Ḣ"]={ "H","̇" },
+ ["ḣ"]={ "h","̇" },
+ ["Ḥ"]={ "H","̣" },
+ ["ḥ"]={ "h","̣" },
+ ["Ḧ"]={ "H","̈" },
+ ["ḧ"]={ "h","̈" },
+ ["Ḩ"]={ "H","̧" },
+ ["ḩ"]={ "h","̧" },
+ ["Ḫ"]={ "H","̮" },
+ ["ḫ"]={ "h","̮" },
+ ["Ḭ"]={ "I","̰" },
+ ["ḭ"]={ "i","̰" },
+ ["Ḯ"]={ "Ï","́" },
+ ["ḯ"]={ "ï","́" },
+ ["Ḱ"]={ "K","́" },
+ ["ḱ"]={ "k","́" },
+ ["Ḳ"]={ "K","̣" },
+ ["ḳ"]={ "k","̣" },
+ ["Ḵ"]={ "K","̱" },
+ ["ḵ"]={ "k","̱" },
+ ["Ḷ"]={ "L","̣" },
+ ["ḷ"]={ "l","̣" },
+ ["Ḹ"]={ "Ḷ","̄" },
+ ["ḹ"]={ "ḷ","̄" },
+ ["Ḻ"]={ "L","̱" },
+ ["ḻ"]={ "l","̱" },
+ ["Ḽ"]={ "L","̭" },
+ ["ḽ"]={ "l","̭" },
+ ["Ḿ"]={ "M","́" },
+ ["ḿ"]={ "m","́" },
+ ["Ṁ"]={ "M","̇" },
+ ["ṁ"]={ "m","̇" },
+ ["Ṃ"]={ "M","̣" },
+ ["ṃ"]={ "m","̣" },
+ ["Ṅ"]={ "N","̇" },
+ ["ṅ"]={ "n","̇" },
+ ["Ṇ"]={ "N","̣" },
+ ["ṇ"]={ "n","̣" },
+ ["Ṉ"]={ "N","̱" },
+ ["ṉ"]={ "n","̱" },
+ ["Ṋ"]={ "N","̭" },
+ ["ṋ"]={ "n","̭" },
+ ["Ṍ"]={ "Õ","́" },
+ ["ṍ"]={ "õ","́" },
+ ["Ṏ"]={ "Õ","̈" },
+ ["ṏ"]={ "õ","̈" },
+ ["Ṑ"]={ "Ō","̀" },
+ ["ṑ"]={ "ō","̀" },
+ ["Ṓ"]={ "Ō","́" },
+ ["ṓ"]={ "ō","́" },
+ ["Ṕ"]={ "P","́" },
+ ["ṕ"]={ "p","́" },
+ ["Ṗ"]={ "P","̇" },
+ ["ṗ"]={ "p","̇" },
+ ["Ṙ"]={ "R","̇" },
+ ["ṙ"]={ "r","̇" },
+ ["Ṛ"]={ "R","̣" },
+ ["ṛ"]={ "r","̣" },
+ ["Ṝ"]={ "Ṛ","̄" },
+ ["ṝ"]={ "ṛ","̄" },
+ ["Ṟ"]={ "R","̱" },
+ ["ṟ"]={ "r","̱" },
+ ["Ṡ"]={ "S","̇" },
+ ["ṡ"]={ "s","̇" },
+ ["Ṣ"]={ "S","̣" },
+ ["ṣ"]={ "s","̣" },
+ ["Ṥ"]={ "Ś","̇" },
+ ["ṥ"]={ "ś","̇" },
+ ["Ṧ"]={ "Š","̇" },
+ ["ṧ"]={ "š","̇" },
+ ["Ṩ"]={ "Ṣ","̇" },
+ ["ṩ"]={ "ṣ","̇" },
+ ["Ṫ"]={ "T","̇" },
+ ["ṫ"]={ "t","̇" },
+ ["Ṭ"]={ "T","̣" },
+ ["ṭ"]={ "t","̣" },
+ ["Ṯ"]={ "T","̱" },
+ ["ṯ"]={ "t","̱" },
+ ["Ṱ"]={ "T","̭" },
+ ["ṱ"]={ "t","̭" },
+ ["Ṳ"]={ "U","̤" },
+ ["ṳ"]={ "u","̤" },
+ ["Ṵ"]={ "U","̰" },
+ ["ṵ"]={ "u","̰" },
+ ["Ṷ"]={ "U","̭" },
+ ["ṷ"]={ "u","̭" },
+ ["Ṹ"]={ "Ũ","́" },
+ ["ṹ"]={ "ũ","́" },
+ ["Ṻ"]={ "Ū","̈" },
+ ["ṻ"]={ "ū","̈" },
+ ["Ṽ"]={ "V","̃" },
+ ["ṽ"]={ "v","̃" },
+ ["Ṿ"]={ "V","̣" },
+ ["ṿ"]={ "v","̣" },
+ ["Ẁ"]={ "W","̀" },
+ ["ẁ"]={ "w","̀" },
+ ["Ẃ"]={ "W","́" },
+ ["ẃ"]={ "w","́" },
+ ["Ẅ"]={ "W","̈" },
+ ["ẅ"]={ "w","̈" },
+ ["Ẇ"]={ "W","̇" },
+ ["ẇ"]={ "w","̇" },
+ ["Ẉ"]={ "W","̣" },
+ ["ẉ"]={ "w","̣" },
+ ["Ẋ"]={ "X","̇" },
+ ["ẋ"]={ "x","̇" },
+ ["Ẍ"]={ "X","̈" },
+ ["ẍ"]={ "x","̈" },
+ ["Ẏ"]={ "Y","̇" },
+ ["ẏ"]={ "y","̇" },
+ ["Ẑ"]={ "Z","̂" },
+ ["ẑ"]={ "z","̂" },
+ ["Ẓ"]={ "Z","̣" },
+ ["ẓ"]={ "z","̣" },
+ ["Ẕ"]={ "Z","̱" },
+ ["ẕ"]={ "z","̱" },
+ ["ẖ"]={ "h","̱" },
+ ["ẗ"]={ "t","̈" },
+ ["ẘ"]={ "w","̊" },
+ ["ẙ"]={ "y","̊" },
+ ["ẛ"]={ "ſ","̇" },
+ ["Ạ"]={ "A","̣" },
+ ["ạ"]={ "a","̣" },
+ ["Ả"]={ "A","̉" },
+ ["ả"]={ "a","̉" },
+ ["Ấ"]={ "Â","́" },
+ ["ấ"]={ "â","́" },
+ ["Ầ"]={ "Â","̀" },
+ ["ầ"]={ "â","̀" },
+ ["Ẩ"]={ "Â","̉" },
+ ["ẩ"]={ "â","̉" },
+ ["Ẫ"]={ "Â","̃" },
+ ["ẫ"]={ "â","̃" },
+ ["Ậ"]={ "Ạ","̂" },
+ ["ậ"]={ "ạ","̂" },
+ ["Ắ"]={ "Ă","́" },
+ ["ắ"]={ "ă","́" },
+ ["Ằ"]={ "Ă","̀" },
+ ["ằ"]={ "ă","̀" },
+ ["Ẳ"]={ "Ă","̉" },
+ ["ẳ"]={ "ă","̉" },
+ ["Ẵ"]={ "Ă","̃" },
+ ["ẵ"]={ "ă","̃" },
+ ["Ặ"]={ "Ạ","̆" },
+ ["ặ"]={ "ạ","̆" },
+ ["Ẹ"]={ "E","̣" },
+ ["ẹ"]={ "e","̣" },
+ ["Ẻ"]={ "E","̉" },
+ ["ẻ"]={ "e","̉" },
+ ["Ẽ"]={ "E","̃" },
+ ["ẽ"]={ "e","̃" },
+ ["Ế"]={ "Ê","́" },
+ ["ế"]={ "ê","́" },
+ ["Ề"]={ "Ê","̀" },
+ ["ề"]={ "ê","̀" },
+ ["Ể"]={ "Ê","̉" },
+ ["ể"]={ "ê","̉" },
+ ["Ễ"]={ "Ê","̃" },
+ ["ễ"]={ "ê","̃" },
+ ["Ệ"]={ "Ẹ","̂" },
+ ["ệ"]={ "ẹ","̂" },
+ ["Ỉ"]={ "I","̉" },
+ ["ỉ"]={ "i","̉" },
+ ["Ị"]={ "I","̣" },
+ ["ị"]={ "i","̣" },
+ ["Ọ"]={ "O","̣" },
+ ["ọ"]={ "o","̣" },
+ ["Ỏ"]={ "O","̉" },
+ ["ỏ"]={ "o","̉" },
+ ["Ố"]={ "Ô","́" },
+ ["ố"]={ "ô","́" },
+ ["Ồ"]={ "Ô","̀" },
+ ["ồ"]={ "ô","̀" },
+ ["Ổ"]={ "Ô","̉" },
+ ["ổ"]={ "ô","̉" },
+ ["Ỗ"]={ "Ô","̃" },
+ ["ỗ"]={ "ô","̃" },
+ ["Ộ"]={ "Ọ","̂" },
+ ["ộ"]={ "ọ","̂" },
+ ["Ớ"]={ "Ơ","́" },
+ ["ớ"]={ "ơ","́" },
+ ["Ờ"]={ "Ơ","̀" },
+ ["ờ"]={ "ơ","̀" },
+ ["Ở"]={ "Ơ","̉" },
+ ["ở"]={ "ơ","̉" },
+ ["Ỡ"]={ "Ơ","̃" },
+ ["ỡ"]={ "ơ","̃" },
+ ["Ợ"]={ "Ơ","̣" },
+ ["ợ"]={ "ơ","̣" },
+ ["Ụ"]={ "U","̣" },
+ ["ụ"]={ "u","̣" },
+ ["Ủ"]={ "U","̉" },
+ ["ủ"]={ "u","̉" },
+ ["Ứ"]={ "Ư","́" },
+ ["ứ"]={ "ư","́" },
+ ["Ừ"]={ "Ư","̀" },
+ ["ừ"]={ "ư","̀" },
+ ["Ử"]={ "Ư","̉" },
+ ["ử"]={ "ư","̉" },
+ ["Ữ"]={ "Ư","̃" },
+ ["ữ"]={ "ư","̃" },
+ ["Ự"]={ "Ư","̣" },
+ ["ự"]={ "ư","̣" },
+ ["Ỳ"]={ "Y","̀" },
+ ["ỳ"]={ "y","̀" },
+ ["Ỵ"]={ "Y","̣" },
+ ["ỵ"]={ "y","̣" },
+ ["Ỷ"]={ "Y","̉" },
+ ["ỷ"]={ "y","̉" },
+ ["Ỹ"]={ "Y","̃" },
+ ["ỹ"]={ "y","̃" },
+ ["ἀ"]={ "α","̓" },
+ ["ἁ"]={ "α","̔" },
+ ["ἂ"]={ "ἀ","̀" },
+ ["ἃ"]={ "ἁ","̀" },
+ ["ἄ"]={ "ἀ","́" },
+ ["ἅ"]={ "ἁ","́" },
+ ["ἆ"]={ "ἀ","͂" },
+ ["ἇ"]={ "ἁ","͂" },
+ ["Ἀ"]={ "Α","̓" },
+ ["Ἁ"]={ "Α","̔" },
+ ["Ἂ"]={ "Ἀ","̀" },
+ ["Ἃ"]={ "Ἁ","̀" },
+ ["Ἄ"]={ "Ἀ","́" },
+ ["Ἅ"]={ "Ἁ","́" },
+ ["Ἆ"]={ "Ἀ","͂" },
+ ["Ἇ"]={ "Ἁ","͂" },
+ ["ἐ"]={ "ε","̓" },
+ ["ἑ"]={ "ε","̔" },
+ ["ἒ"]={ "ἐ","̀" },
+ ["ἓ"]={ "ἑ","̀" },
+ ["ἔ"]={ "ἐ","́" },
+ ["ἕ"]={ "ἑ","́" },
+ ["Ἐ"]={ "Ε","̓" },
+ ["Ἑ"]={ "Ε","̔" },
+ ["Ἒ"]={ "Ἐ","̀" },
+ ["Ἓ"]={ "Ἑ","̀" },
+ ["Ἔ"]={ "Ἐ","́" },
+ ["Ἕ"]={ "Ἑ","́" },
+ ["ἠ"]={ "η","̓" },
+ ["ἡ"]={ "η","̔" },
+ ["ἢ"]={ "ἠ","̀" },
+ ["ἣ"]={ "ἡ","̀" },
+ ["ἤ"]={ "ἠ","́" },
+ ["ἥ"]={ "ἡ","́" },
+ ["ἦ"]={ "ἠ","͂" },
+ ["ἧ"]={ "ἡ","͂" },
+ ["Ἠ"]={ "Η","̓" },
+ ["Ἡ"]={ "Η","̔" },
+ ["Ἢ"]={ "Ἠ","̀" },
+ ["Ἣ"]={ "Ἡ","̀" },
+ ["Ἤ"]={ "Ἠ","́" },
+ ["Ἥ"]={ "Ἡ","́" },
+ ["Ἦ"]={ "Ἠ","͂" },
+ ["Ἧ"]={ "Ἡ","͂" },
+ ["ἰ"]={ "ι","̓" },
+ ["ἱ"]={ "ι","̔" },
+ ["ἲ"]={ "ἰ","̀" },
+ ["ἳ"]={ "ἱ","̀" },
+ ["ἴ"]={ "ἰ","́" },
+ ["ἵ"]={ "ἱ","́" },
+ ["ἶ"]={ "ἰ","͂" },
+ ["ἷ"]={ "ἱ","͂" },
+ ["Ἰ"]={ "Ι","̓" },
+ ["Ἱ"]={ "Ι","̔" },
+ ["Ἲ"]={ "Ἰ","̀" },
+ ["Ἳ"]={ "Ἱ","̀" },
+ ["Ἴ"]={ "Ἰ","́" },
+ ["Ἵ"]={ "Ἱ","́" },
+ ["Ἶ"]={ "Ἰ","͂" },
+ ["Ἷ"]={ "Ἱ","͂" },
+ ["ὀ"]={ "ο","̓" },
+ ["ὁ"]={ "ο","̔" },
+ ["ὂ"]={ "ὀ","̀" },
+ ["ὃ"]={ "ὁ","̀" },
+ ["ὄ"]={ "ὀ","́" },
+ ["ὅ"]={ "ὁ","́" },
+ ["Ὀ"]={ "Ο","̓" },
+ ["Ὁ"]={ "Ο","̔" },
+ ["Ὂ"]={ "Ὀ","̀" },
+ ["Ὃ"]={ "Ὁ","̀" },
+ ["Ὄ"]={ "Ὀ","́" },
+ ["Ὅ"]={ "Ὁ","́" },
+ ["ὐ"]={ "υ","̓" },
+ ["ὑ"]={ "υ","̔" },
+ ["ὒ"]={ "ὐ","̀" },
+ ["ὓ"]={ "ὑ","̀" },
+ ["ὔ"]={ "ὐ","́" },
+ ["ὕ"]={ "ὑ","́" },
+ ["ὖ"]={ "ὐ","͂" },
+ ["ὗ"]={ "ὑ","͂" },
+ ["Ὑ"]={ "Υ","̔" },
+ ["Ὓ"]={ "Ὑ","̀" },
+ ["Ὕ"]={ "Ὑ","́" },
+ ["Ὗ"]={ "Ὑ","͂" },
+ ["ὠ"]={ "ω","̓" },
+ ["ὡ"]={ "ω","̔" },
+ ["ὢ"]={ "ὠ","̀" },
+ ["ὣ"]={ "ὡ","̀" },
+ ["ὤ"]={ "ὠ","́" },
+ ["ὥ"]={ "ὡ","́" },
+ ["ὦ"]={ "ὠ","͂" },
+ ["ὧ"]={ "ὡ","͂" },
+ ["Ὠ"]={ "Ω","̓" },
+ ["Ὡ"]={ "Ω","̔" },
+ ["Ὢ"]={ "Ὠ","̀" },
+ ["Ὣ"]={ "Ὡ","̀" },
+ ["Ὤ"]={ "Ὠ","́" },
+ ["Ὥ"]={ "Ὡ","́" },
+ ["Ὦ"]={ "Ὠ","͂" },
+ ["Ὧ"]={ "Ὡ","͂" },
+ ["ὰ"]={ "α","̀" },
+ ["ὲ"]={ "ε","̀" },
+ ["ὴ"]={ "η","̀" },
+ ["ὶ"]={ "ι","̀" },
+ ["ὸ"]={ "ο","̀" },
+ ["ὺ"]={ "υ","̀" },
+ ["ὼ"]={ "ω","̀" },
+ ["ᾀ"]={ "ἀ","ͅ" },
+ ["ᾁ"]={ "ἁ","ͅ" },
+ ["ᾂ"]={ "ἂ","ͅ" },
+ ["ᾃ"]={ "ἃ","ͅ" },
+ ["ᾄ"]={ "ἄ","ͅ" },
+ ["ᾅ"]={ "ἅ","ͅ" },
+ ["ᾆ"]={ "ἆ","ͅ" },
+ ["ᾇ"]={ "ἇ","ͅ" },
+ ["ᾈ"]={ "Ἀ","ͅ" },
+ ["ᾉ"]={ "Ἁ","ͅ" },
+ ["ᾊ"]={ "Ἂ","ͅ" },
+ ["ᾋ"]={ "Ἃ","ͅ" },
+ ["ᾌ"]={ "Ἄ","ͅ" },
+ ["ᾍ"]={ "Ἅ","ͅ" },
+ ["ᾎ"]={ "Ἆ","ͅ" },
+ ["ᾏ"]={ "Ἇ","ͅ" },
+ ["ᾐ"]={ "ἠ","ͅ" },
+ ["ᾑ"]={ "ἡ","ͅ" },
+ ["ᾒ"]={ "ἢ","ͅ" },
+ ["ᾓ"]={ "ἣ","ͅ" },
+ ["ᾔ"]={ "ἤ","ͅ" },
+ ["ᾕ"]={ "ἥ","ͅ" },
+ ["ᾖ"]={ "ἦ","ͅ" },
+ ["ᾗ"]={ "ἧ","ͅ" },
+ ["ᾘ"]={ "Ἠ","ͅ" },
+ ["ᾙ"]={ "Ἡ","ͅ" },
+ ["ᾚ"]={ "Ἢ","ͅ" },
+ ["ᾛ"]={ "Ἣ","ͅ" },
+ ["ᾜ"]={ "Ἤ","ͅ" },
+ ["ᾝ"]={ "Ἥ","ͅ" },
+ ["ᾞ"]={ "Ἦ","ͅ" },
+ ["ᾟ"]={ "Ἧ","ͅ" },
+ ["ᾠ"]={ "ὠ","ͅ" },
+ ["ᾡ"]={ "ὡ","ͅ" },
+ ["ᾢ"]={ "ὢ","ͅ" },
+ ["ᾣ"]={ "ὣ","ͅ" },
+ ["ᾤ"]={ "ὤ","ͅ" },
+ ["ᾥ"]={ "ὥ","ͅ" },
+ ["ᾦ"]={ "ὦ","ͅ" },
+ ["ᾧ"]={ "ὧ","ͅ" },
+ ["ᾨ"]={ "Ὠ","ͅ" },
+ ["ᾩ"]={ "Ὡ","ͅ" },
+ ["ᾪ"]={ "Ὢ","ͅ" },
+ ["ᾫ"]={ "Ὣ","ͅ" },
+ ["ᾬ"]={ "Ὤ","ͅ" },
+ ["ᾭ"]={ "Ὥ","ͅ" },
+ ["ᾮ"]={ "Ὦ","ͅ" },
+ ["ᾯ"]={ "Ὧ","ͅ" },
+ ["ᾰ"]={ "α","̆" },
+ ["ᾱ"]={ "α","̄" },
+ ["ᾲ"]={ "ὰ","ͅ" },
+ ["ᾳ"]={ "α","ͅ" },
+ ["ᾴ"]={ "ά","ͅ" },
+ ["ᾶ"]={ "α","͂" },
+ ["ᾷ"]={ "ᾶ","ͅ" },
+ ["Ᾰ"]={ "Α","̆" },
+ ["Ᾱ"]={ "Α","̄" },
+ ["Ὰ"]={ "Α","̀" },
+ ["ᾼ"]={ "Α","ͅ" },
+ ["῁"]={ "¨","͂" },
+ ["ῂ"]={ "ὴ","ͅ" },
+ ["ῃ"]={ "η","ͅ" },
+ ["ῄ"]={ "ή","ͅ" },
+ ["ῆ"]={ "η","͂" },
+ ["ῇ"]={ "ῆ","ͅ" },
+ ["Ὲ"]={ "Ε","̀" },
+ ["Ὴ"]={ "Η","̀" },
+ ["ῌ"]={ "Η","ͅ" },
+ ["῍"]={ "᾿","̀" },
+ ["῎"]={ "᾿","́" },
+ ["῏"]={ "᾿","͂" },
+ ["ῐ"]={ "ι","̆" },
+ ["ῑ"]={ "ι","̄" },
+ ["ῒ"]={ "ϊ","̀" },
+ ["ῖ"]={ "ι","͂" },
+ ["ῗ"]={ "ϊ","͂" },
+ ["Ῐ"]={ "Ι","̆" },
+ ["Ῑ"]={ "Ι","̄" },
+ ["Ὶ"]={ "Ι","̀" },
+ ["῝"]={ "῾","̀" },
+ ["῞"]={ "῾","́" },
+ ["῟"]={ "῾","͂" },
+ ["ῠ"]={ "υ","̆" },
+ ["ῡ"]={ "υ","̄" },
+ ["ῢ"]={ "ϋ","̀" },
+ ["ῤ"]={ "ρ","̓" },
+ ["ῥ"]={ "ρ","̔" },
+ ["ῦ"]={ "υ","͂" },
+ ["ῧ"]={ "ϋ","͂" },
+ ["Ῠ"]={ "Υ","̆" },
+ ["Ῡ"]={ "Υ","̄" },
+ ["Ὺ"]={ "Υ","̀" },
+ ["Ῥ"]={ "Ρ","̔" },
+ ["῭"]={ "¨","̀" },
+ ["ῲ"]={ "ὼ","ͅ" },
+ ["ῳ"]={ "ω","ͅ" },
+ ["ῴ"]={ "ώ","ͅ" },
+ ["ῶ"]={ "ω","͂" },
+ ["ῷ"]={ "ῶ","ͅ" },
+ ["Ὸ"]={ "Ο","̀" },
+ ["Ὼ"]={ "Ω","̀" },
+ ["ῼ"]={ "Ω","ͅ" },
+ ["↚"]={ "←","̸" },
+ ["↛"]={ "→","̸" },
+ ["↮"]={ "↔","̸" },
+ ["⇍"]={ "⇐","̸" },
+ ["⇎"]={ "⇔","̸" },
+ ["⇏"]={ "⇒","̸" },
+ ["∄"]={ "∃","̸" },
+ ["∉"]={ "∈","̸" },
+ ["∌"]={ "∋","̸" },
+ ["∤"]={ "∣","̸" },
+ ["∦"]={ "∥","̸" },
+ ["≁"]={ "∼","̸" },
+ ["≄"]={ "≃","̸" },
+ ["≇"]={ "≅","̸" },
+ ["≉"]={ "≈","̸" },
+ ["≠"]={ "=","̸" },
+ ["≢"]={ "≡","̸" },
+ ["≭"]={ "≍","̸" },
+ ["≮"]={ "<","̸" },
+ ["≯"]={ ">","̸" },
+ ["≰"]={ "≤","̸" },
+ ["≱"]={ "≥","̸" },
+ ["≴"]={ "≲","̸" },
+ ["≵"]={ "≳","̸" },
+ ["≸"]={ "≶","̸" },
+ ["≹"]={ "≷","̸" },
+ ["⊀"]={ "≺","̸" },
+ ["⊁"]={ "≻","̸" },
+ ["⊄"]={ "⊂","̸" },
+ ["⊅"]={ "⊃","̸" },
+ ["⊈"]={ "⊆","̸" },
+ ["⊉"]={ "⊇","̸" },
+ ["⊬"]={ "⊢","̸" },
+ ["⊭"]={ "⊨","̸" },
+ ["⊮"]={ "⊩","̸" },
+ ["⊯"]={ "⊫","̸" },
+ ["⋠"]={ "≼","̸" },
+ ["⋡"]={ "≽","̸" },
+ ["⋢"]={ "⊑","̸" },
+ ["⋣"]={ "⊒","̸" },
+ ["⋪"]={ "⊲","̸" },
+ ["⋫"]={ "⊳","̸" },
+ ["⋬"]={ "⊴","̸" },
+ ["⋭"]={ "⊵","̸" },
+ ["⫝̸"]={ "⫝","̸" },
+ ["が"]={ "か","゙" },
+ ["ぎ"]={ "き","゙" },
+ ["ぐ"]={ "く","゙" },
+ ["げ"]={ "け","゙" },
+ ["ご"]={ "こ","゙" },
+ ["ざ"]={ "さ","゙" },
+ ["じ"]={ "し","゙" },
+ ["ず"]={ "す","゙" },
+ ["ぜ"]={ "せ","゙" },
+ ["ぞ"]={ "そ","゙" },
+ ["だ"]={ "た","゙" },
+ ["ぢ"]={ "ち","゙" },
+ ["づ"]={ "つ","゙" },
+ ["で"]={ "て","゙" },
+ ["ど"]={ "と","゙" },
+ ["ば"]={ "は","゙" },
+ ["ぱ"]={ "は","゚" },
+ ["び"]={ "ひ","゙" },
+ ["ぴ"]={ "ひ","゚" },
+ ["ぶ"]={ "ふ","゙" },
+ ["ぷ"]={ "ふ","゚" },
+ ["べ"]={ "へ","゙" },
+ ["ぺ"]={ "へ","゚" },
+ ["ぼ"]={ "ほ","゙" },
+ ["ぽ"]={ "ほ","゚" },
+ ["ゔ"]={ "う","゙" },
+ ["ゞ"]={ "ゝ","゙" },
+ ["ガ"]={ "カ","゙" },
+ ["ギ"]={ "キ","゙" },
+ ["グ"]={ "ク","゙" },
+ ["ゲ"]={ "ケ","゙" },
+ ["ゴ"]={ "コ","゙" },
+ ["ザ"]={ "サ","゙" },
+ ["ジ"]={ "シ","゙" },
+ ["ズ"]={ "ス","゙" },
+ ["ゼ"]={ "セ","゙" },
+ ["ゾ"]={ "ソ","゙" },
+ ["ダ"]={ "タ","゙" },
+ ["ヂ"]={ "チ","゙" },
+ ["ヅ"]={ "ツ","゙" },
+ ["デ"]={ "テ","゙" },
+ ["ド"]={ "ト","゙" },
+ ["バ"]={ "ハ","゙" },
+ ["パ"]={ "ハ","゚" },
+ ["ビ"]={ "ヒ","゙" },
+ ["ピ"]={ "ヒ","゚" },
+ ["ブ"]={ "フ","゙" },
+ ["プ"]={ "フ","゚" },
+ ["ベ"]={ "ヘ","゙" },
+ ["ペ"]={ "ヘ","゚" },
+ ["ボ"]={ "ホ","゙" },
+ ["ポ"]={ "ホ","゚" },
+ ["ヴ"]={ "ウ","゙" },
+ ["ヷ"]={ "ワ","゙" },
+ ["ヸ"]={ "ヰ","゙" },
+ ["ヹ"]={ "ヱ","゙" },
+ ["ヺ"]={ "ヲ","゙" },
+ ["ヾ"]={ "ヽ","゙" },
+ ["יִ"]={ "י","ִ" },
+ ["ײַ"]={ "ײ","ַ" },
+ ["שׁ"]={ "ש","ׁ" },
+ ["שׂ"]={ "ש","ׂ" },
+ ["שּׁ"]={ "שּ","ׁ" },
+ ["שּׂ"]={ "שּ","ׂ" },
+ ["אַ"]={ "א","ַ" },
+ ["אָ"]={ "א","ָ" },
+ ["אּ"]={ "א","ּ" },
+ ["בּ"]={ "ב","ּ" },
+ ["גּ"]={ "ג","ּ" },
+ ["דּ"]={ "ד","ּ" },
+ ["הּ"]={ "ה","ּ" },
+ ["וּ"]={ "ו","ּ" },
+ ["זּ"]={ "ז","ּ" },
+ ["טּ"]={ "ט","ּ" },
+ ["יּ"]={ "י","ּ" },
+ ["ךּ"]={ "ך","ּ" },
+ ["כּ"]={ "כ","ּ" },
+ ["לּ"]={ "ל","ּ" },
+ ["מּ"]={ "מ","ּ" },
+ ["נּ"]={ "נ","ּ" },
+ ["סּ"]={ "ס","ּ" },
+ ["ףּ"]={ "ף","ּ" },
+ ["פּ"]={ "פ","ּ" },
+ ["צּ"]={ "צ","ּ" },
+ ["קּ"]={ "ק","ּ" },
+ ["רּ"]={ "ר","ּ" },
+ ["שּ"]={ "ש","ּ" },
+ ["תּ"]={ "ת","ּ" },
+ ["וֹ"]={ "ו","ֹ" },
+ ["בֿ"]={ "ב","ֿ" },
+ ["כֿ"]={ "כ","ֿ" },
+ ["פֿ"]={ "פ","ֿ" },
+ ["𑂚"]={ "𑂙","𑂺" },
+ ["𑂜"]={ "𑂛","𑂺" },
+ ["𑂫"]={ "𑂥","𑂺" },
+ ["𑄮"]={ "𑄱","𑄧" },
+ ["𑄯"]={ "𑄲","𑄧" },
+ ["𑍋"]={ "𑍇","𑌾" },
+ ["𑍌"]={ "𑍇","𑍗" },
+ ["𑒻"]={ "𑒹","𑒺" },
+ ["𑒼"]={ "𑒹","𑒰" },
+ ["𑒾"]={ "𑒹","𑒽" },
+ ["𑖺"]={ "𑖸","𑖯" },
+ ["𑖻"]={ "𑖹","𑖯" },
+ ["𝅗𝅥"]={ "𝅗","𝅥" },
+ ["𝅘𝅥"]={ "𝅘","𝅥" },
+ ["𝅘𝅥𝅮"]={ "𝅘𝅥","𝅮" },
+ ["𝅘𝅥𝅯"]={ "𝅘𝅥","𝅯" },
+ ["𝅘𝅥𝅰"]={ "𝅘𝅥","𝅰" },
+ ["𝅘𝅥𝅱"]={ "𝅘𝅥","𝅱" },
+ ["𝅘𝅥𝅲"]={ "𝅘𝅥","𝅲" },
+ ["𝆹𝅥"]={ "𝆹","𝅥" },
+ ["𝆺𝅥"]={ "𝆺","𝅥" },
+ ["𝆹𝅥𝅮"]={ "𝆹𝅥","𝅮" },
+ ["𝆺𝅥𝅮"]={ "𝆺𝅥","𝅮" },
+ ["𝆹𝅥𝅯"]={ "𝆹𝅥","𝅯" },
+ ["𝆺𝅥𝅯"]={ "𝆺𝅥","𝅯" },
+   },
+  },
+ },
+ ["name"]="collapse",
+ ["prepend"]=true,
+ ["type"]="ligature",
+}
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-fonts-gbn']={
+ version=1.001,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+--removed
+
+end
+local next=next
+local fonts=fonts
+local nodes=nodes
+local nuts=nodes.nuts 
+local traverse_id=nuts.traverse_id
+local flush_node=nuts.flush_node
+local glyph_code=nodes.nodecodes.glyph
+local disc_code=nodes.nodecodes.disc
+local tonode=nuts.tonode
+local tonut=nuts.tonut
+local getfont=nuts.getfont
+local getchar=nuts.getchar
+local getid=nuts.getid
+local getboth=nuts.getboth
+local getprev=nuts.getprev
+local getnext=nuts.getnext
+local getdisc=nuts.getdisc
+local setchar=nuts.setchar
+local setlink=nuts.setlink
+local setprev=nuts.setprev
+local n_ligaturing=node.ligaturing
+local n_kerning=node.kerning
+local d_ligaturing=nuts.ligaturing
+local d_kerning=nuts.kerning
+local basemodepass=true
+local function l_warning() logs.report("fonts","don't call 'node.ligaturing' directly") l_warning=nil end
+local function k_warning() logs.report("fonts","don't call 'node.kerning' directly") k_warning=nil end
+function node.ligaturing(...)
+ if basemodepass and l_warning then
+  l_warning()
+ end
+ return n_ligaturing(...)
+end
+function node.kerning(...)
+ if basemodepass and k_warning then
+  k_warning()
+ end
+ return n_kerning(...)
+end
+function nuts.ligaturing(...)
+ if basemodepass and l_warning then
+  l_warning()
+ end
+ return d_ligaturing(...)
+end
+function nuts.kerning(...)
+ if basemodepass and k_warning then
+  k_warning()
+ end
+ return d_kerning(...)
+end
+function nodes.handlers.setbasemodepass(v)
+ basemodepass=v
+end
+local function nodepass(head,groupcode,size,packtype,direction)
+ local fontdata=fonts.hashes.identifiers
+ if fontdata then
+  local usedfonts={}
+  local basefonts={}
+  local prevfont=nil
+  local basefont=nil
+  local variants=nil
+  local redundant=nil
+  local nofused=0
+  for n in traverse_id(glyph_code,head) do
+   local font=getfont(n)
+   if font~=prevfont then
+    if basefont then
+     basefont[2]=getprev(n)
+    end
+    prevfont=font
+    local used=usedfonts[font]
+    if not used then
+     local tfmdata=fontdata[font] 
+     if tfmdata then
+      local shared=tfmdata.shared 
+      if shared then
+       local processors=shared.processes
+       if processors and #processors>0 then
+        usedfonts[font]=processors
+        nofused=nofused+1
+       elseif basemodepass then
+        basefont={ n,nil }
+        basefonts[#basefonts+1]=basefont
+       end
+      end
+      local resources=tfmdata.resources
+      variants=resources and resources.variants
+      variants=variants and next(variants) and variants or false
+     end
+    else
+     local tfmdata=fontdata[prevfont]
+     if tfmdata then
+      local resources=tfmdata.resources
+      variants=resources and resources.variants
+      variants=variants and next(variants) and variants or false
+     end
+    end
+   end
+   if variants then
+    local char=getchar(n)
+    if (char>=0xFE00 and char<=0xFE0F) or (char>=0xE0100 and char<=0xE01EF) then
+     local hash=variants[char]
+     if hash then
+      local p=getprev(n)
+      if p and getid(p)==glyph_code then
+       local variant=hash[getchar(p)]
+       if variant then
+        setchar(p,variant)
+       end
+      end
+     end
+     if not redundant then
+      redundant={ n }
+     else
+      redundant[#redundant+1]=n
+     end
+    end
+   end
+  end
+  local nofbasefonts=#basefonts
+  if redundant then
+   for i=1,#redundant do
+    local r=redundant[i]
+    local p,n=getboth(r)
+    if r==head then
+     head=n
+     setprev(n)
+    else
+     setlink(p,n)
+    end
+    if nofbasefonts>0 then
+     for i=1,nofbasefonts do
+      local bi=basefonts[i]
+      if r==bi[1] then
+       bi[1]=n
+      end
+      if r==bi[2] then
+       bi[2]=n
+      end
+     end
+    end
+    flush_node(r)
+   end
+  end
+  for d in traverse_id(disc_code,head) do
+   local _,_,r=getdisc(d)
+   if r then
+    for n in traverse_id(glyph_code,r) do
+     local font=getfont(n)
+     if font~=prevfont then
+      prevfont=font
+      local used=usedfonts[font]
+      if not used then
+       local tfmdata=fontdata[font] 
+       if tfmdata then
+        local shared=tfmdata.shared 
+        if shared then
+         local processors=shared.processes
+         if processors and #processors>0 then
+          usedfonts[font]=processors
+          nofused=nofused+1
+         end
+        end
+       end
+      end
+     end
+    end
+   end
+  end
+  if next(usedfonts) then
+   for font,processors in next,usedfonts do
+    for i=1,#processors do
+     head=processors[i](head,font,0,direction,nofused) or head
+    end
+   end
+  end
+  if basemodepass and nofbasefonts>0 then
+   for i=1,nofbasefonts do
+    local range=basefonts[i]
+    local start=range[1]
+    local stop=range[2]
+    if start then
+     local front=head==start
+     local prev,next
+     if stop then
+      next=getnext(stop)
+      start,stop=d_ligaturing(start,stop)
+      start,stop=d_kerning(start,stop)
+     else
+      prev=getprev(start)
+      start=d_ligaturing(start)
+      start=d_kerning(start)
+     end
+     if prev then
+      setlink(prev,start)
+     end
+     if next then
+      setlink(stop,next)
+     end
+     if front and head~=start then
+      head=start
+     end
+    end
+   end
+  end
+ end
+ return head
+end
+local function basepass(head)
+ if basemodepass then
+  head=d_ligaturing(head)
+  head=d_kerning(head)
+ end
+ return head
+end
+local protectpass=node.direct.protect_glyphs
+local injectpass=nodes.injections.handler
+function nodes.handlers.nodepass(head,...)
+ if head then
+  return tonode(nodepass(tonut(head),...))
+ end
+end
+function nodes.handlers.basepass(head)
+ if head then
+  return tonode(basepass(tonut(head)))
+ end
+end
+function nodes.handlers.injectpass(head)
+ if head then
+  return tonode(injectpass(tonut(head)))
+ end
+end
+function nodes.handlers.protectpass(head)
+ if head then
+  protectpass(tonut(head))
+  return head
+ end
+end
+function nodes.simple_font_handler(head,groupcode,size,packtype,direction)
+ if head then
+  head=tonut(head)
+  head=nodepass(head,groupcode,size,packtype,direction)
+  head=injectpass(head)
+  if not basemodepass then
+   head=basepass(head)
+  end
+  protectpass(head)
+  head=tonode(head)
+ end
+ return head
+end
+
+end -- closure