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diff --git a/Master/texmf-dist/tex/luatex/luaotfload/fontloader-2016-04-21.lua b/Master/texmf-dist/tex/luatex/luaotfload/fontloader-2016-04-21.lua
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+--[[info-----------------------------------------------------------------------
+ Luaotfload fontloader package
+ build 2016-04-21 07:49:01 by phg@phlegethon
+-------------------------------------------------------------------------------
+
+ © 2016 PRAGMA ADE / ConTeXt Development Team
+
+ The code in this file is provided under the GPL v2.0 license. See the
+ file COPYING in the Luaotfload repository for details.
+
+ Report bugs to github.com/lualatex/luaotfload
+
+ This file has been assembled from components taken from Context. See
+ the Luaotfload documentation for details:
+
+ $ texdoc luaotfload
+ $ man 1 luaotfload-tool
+ $ man 5 luaotfload.conf
+
+ Included files:
+
+ · fontloader-data-con.lua
+ · fontloader-basics-nod.lua
+ · fontloader-font-ini.lua
+ · fontloader-font-con.lua
+ · fontloader-fonts-enc.lua
+ · fontloader-font-cid.lua
+ · fontloader-font-map.lua
+ · fontloader-fonts-syn.lua
+ · fontloader-font-tfm.lua
+ · fontloader-font-afm.lua
+ · fontloader-font-afk.lua
+ · fontloader-font-oti.lua
+ · fontloader-font-otr.lua
+ · fontloader-font-cff.lua
+ · fontloader-font-ttf.lua
+ · fontloader-font-dsp.lua
+ · fontloader-font-oup.lua
+ · fontloader-font-otl.lua
+ · fontloader-font-oto.lua
+ · fontloader-font-otj.lua
+ · fontloader-font-ota.lua
+ · fontloader-font-ots.lua
+ · fontloader-font-osd.lua
+ · fontloader-font-lua.lua
+ · fontloader-font-def.lua
+ · fontloader-fonts-ext.lua
+ · fontloader-font-gbn.lua
+
+--info]]-----------------------------------------------------------------------
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “data-con” 675f5a0af45ffb3e0d2e2ab5d6c2e47b] ---
+
+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)
+ 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 --- [luaotfload, fontloader-2016-04-21.lua scope for “data-con”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “basics-nod” ecd4eb8a91ac539824a9a72c5b97ded4] ---
+
+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
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+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.pool={}
+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 i=0,#glyphcodes do
+ glyphcodes[glyphcodes[i]]=i
+end
+for i=0,#disccodes do
+ disccodes[disccodes[i]]=i
+end
+nodes.nodecodes=nodecodes
+nodes.glyphcodes=glyphcodes
+nodes.disccodes=disccodes
+local free_node=node.free
+local remove_node=node.remove
+local new_node=node.new
+local traverse_id=node.traverse_id
+nodes.handlers.protectglyphs=node.protect_glyphs
+nodes.handlers.unprotectglyphs=node.unprotect_glyphs
+local math_code=nodecodes.math
+local end_of_math=node.end_of_math
+function node.end_of_math(n)
+ if n.id==math_code and n.subtype==1 then
+ return n
+ else
+ return end_of_math(n)
+ end
+end
+function nodes.remove(head,current,free_too)
+ local t=current
+ head,current=remove_node(head,current)
+ if t then
+ if free_too then
+ free_node(t)
+ t=nil
+ else
+ t.next,t.prev=nil,nil
+ end
+ end
+ return head,current,t
+end
+function nodes.delete(head,current)
+ return nodes.remove(head,current,true)
+end
+function nodes.pool.kern(k)
+ local n=new_node("kern",1)
+ n.kern=k
+ return n
+end
+local getfield=node.getfield
+local setfield=node.setfield
+nodes.getfield=getfield
+nodes.setfield=setfield
+nodes.getattr=getfield
+nodes.setattr=setfield
+nodes.tostring=node.tostring or tostring
+nodes.copy=node.copy
+nodes.copy_list=node.copy_list
+nodes.delete=node.delete
+nodes.dimensions=node.dimensions
+nodes.end_of_math=node.end_of_math
+nodes.flush_list=node.flush_list
+nodes.flush_node=node.flush_node
+nodes.free=node.free
+nodes.insert_after=node.insert_after
+nodes.insert_before=node.insert_before
+nodes.hpack=node.hpack
+nodes.new=node.new
+nodes.tail=node.tail
+nodes.traverse=node.traverse
+nodes.traverse_id=node.traverse_id
+nodes.slide=node.slide
+nodes.vpack=node.vpack
+nodes.first_glyph=node.first_glyph
+nodes.has_glyph=node.has_glyph or node.first_glyph
+nodes.current_attr=node.current_attr
+nodes.do_ligature_n=node.do_ligature_n
+nodes.has_field=node.has_field
+nodes.last_node=node.last_node
+nodes.usedlist=node.usedlist
+nodes.protrusion_skippable=node.protrusion_skippable
+nodes.write=node.write
+nodes.has_attribute=node.has_attribute
+nodes.set_attribute=node.set_attribute
+nodes.unset_attribute=node.unset_attribute
+nodes.protect_glyphs=node.protect_glyphs
+nodes.unprotect_glyphs=node.unprotect_glyphs
+nodes.mlist_to_hlist=node.mlist_to_hlist
+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
+local getfield=direct.getfield
+local setfield=direct.setfield
+nuts.getfield=getfield
+nuts.setfield=setfield
+nuts.getnext=direct.getnext
+nuts.setnext=direct.setnext
+nuts.getprev=direct.getprev
+nuts.setprev=direct.setprev
+nuts.getboth=direct.getboth
+nuts.setboth=direct.setboth
+nuts.getid=direct.getid
+nuts.getattr=direct.get_attribute or direct.has_attribute or getfield
+nuts.setattr=setfield
+nuts.getfont=direct.getfont
+nuts.setfont=direct.setfont
+nuts.getsubtype=direct.getsubtype
+nuts.setsubtype=direct.setsubtype or function(n,s) setfield(n,"subtype",s) end
+nuts.getchar=direct.getchar
+nuts.setchar=direct.setchar
+nuts.getdisc=direct.getdisc
+nuts.setdisc=direct.setdisc
+nuts.setlink=direct.setlink
+nuts.getlist=direct.getlist
+nuts.setlist=direct.setlist or function(n,l) setfield(n,"list",l) end
+nuts.getleader=direct.getleader
+nuts.setleader=direct.setleader or function(n,l) setfield(n,"leader",l) end
+if not direct.is_glyph then
+ local getchar=direct.getchar
+ local getid=direct.getid
+ local getfont=direct.getfont
+ local glyph_code=nodes.nodecodes.glyph
+ function direct.is_glyph(n,f)
+ local id=getid(n)
+ if id==glyph_code then
+ if f and getfont(n)==f then
+ return getchar(n)
+ else
+ return false
+ end
+ else
+ return nil,id
+ end
+ end
+ function direct.is_char(n,f)
+ local id=getid(n)
+ if id==glyph_code then
+ if getsubtype(n)>=256 then
+ return false
+ elseif f and getfont(n)==f then
+ return getchar(n)
+ else
+ return false
+ end
+ else
+ return nil,id
+ end
+ end
+end
+nuts.ischar=direct.is_char
+nuts.is_char=direct.is_char
+nuts.isglyph=direct.is_glyph
+nuts.is_glyph=direct.is_glyph
+nuts.insert_before=direct.insert_before
+nuts.insert_after=direct.insert_after
+nuts.delete=direct.delete
+nuts.copy=direct.copy
+nuts.copy_list=direct.copy_list
+nuts.tail=direct.tail
+nuts.flush_list=direct.flush_list
+nuts.free=direct.free
+nuts.remove=direct.remove
+nuts.is_node=direct.is_node
+nuts.end_of_math=direct.end_of_math
+nuts.traverse=direct.traverse
+nuts.traverse_id=direct.traverse_id
+nuts.traverse_char=direct.traverse_char
+nuts.ligaturing=direct.ligaturing
+nuts.kerning=direct.kerning
+nuts.getprop=nuts.getattr
+nuts.setprop=nuts.setattr
+local new_nut=direct.new
+nuts.new=new_nut
+nuts.pool={}
+function nuts.pool.kern(k)
+ local n=new_nut("kern",1)
+ setfield(n,"kern",k)
+ return n
+end
+local propertydata=direct.get_properties_table()
+nodes.properties={ data=propertydata }
+direct.set_properties_mode(true,true)
+function direct.set_properties_mode() 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
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “basics-nod”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-ini” 179f0a75cda26696c1b1cd6d7fe0d8ae] ---
+
+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 report_defining=logs.reporter("fonts","defining")
+fonts=fonts or {}
+local fonts=fonts
+fonts.hashes={ identifiers=allocate() }
+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 }
+fontloader.totable=fontloader.to_table
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “font-ini”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-con” 06c79f2ae5caa039ff34ffa55eb7c909] ---
+
+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,rawget=next,tostring,rawget
+local format,match,lower,gsub=string.format,string.match,string.lower,string.gsub
+local utfbyte=utf.byte
+local sort,insert,concat,sortedkeys,serialize,fastcopy=table.sort,table.insert,table.concat,table.sortedkeys,table.serialize,table.fastcopy
+local derivetable=table.derive
+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=0xF0000
+constructors.cacheintex=true
+constructors.keys={
+ properties={
+ encodingbytes="number",
+ embedding="number",
+ cidinfo={},
+ format="string",
+ fontname="string",
+ fullname="string",
+ filename="filename",
+ psname="string",
+ name="string",
+ virtualized="boolean",
+ hasitalics="boolean",
+ autoitalicamount="basepoints",
+ nostackmath="boolean",
+ noglyphnames="boolean",
+ mode="string",
+ hasmath="boolean",
+ mathitalics="boolean",
+ textitalics="boolean",
+ finalized="boolean",
+ },
+ parameters={
+ mathsize="number",
+ scriptpercentage="float",
+ scriptscriptpercentage="float",
+ units="cardinal",
+ designsize="scaledpoints",
+ expansion={
+ stretch="integerscale",
+ shrink="integerscale",
+ step="integerscale",
+ auto="boolean",
+ },
+ protrusion={
+ auto="boolean",
+ },
+ slantfactor="float",
+ extendfactor="float",
+ factor="float",
+ hfactor="float",
+ vfactor="float",
+ size="scaledpoints",
+ units="scaledpoints",
+ scaledpoints="scaledpoints",
+ slantperpoint="scaledpoints",
+ spacing={
+ width="scaledpoints",
+ stretch="scaledpoints",
+ shrink="scaledpoints",
+ extra="scaledpoints",
+ },
+ xheight="scaledpoints",
+ quad="scaledpoints",
+ ascender="scaledpoints",
+ descender="scaledpoints",
+ synonyms={
+ space="spacing.width",
+ spacestretch="spacing.stretch",
+ spaceshrink="spacing.shrink",
+ extraspace="spacing.extra",
+ x_height="xheight",
+ space_stretch="spacing.stretch",
+ space_shrink="spacing.shrink",
+ extra_space="spacing.extra",
+ em="quad",
+ ex="xheight",
+ slant="slantperpoint",
+ },
+ },
+ description={
+ width="basepoints",
+ height="basepoints",
+ depth="basepoints",
+ boundingbox={},
+ },
+ character={
+ width="scaledpoints",
+ height="scaledpoints",
+ depth="scaledpoints",
+ italic="scaledpoints",
+ },
+}
+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.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
+}
+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
+function constructors.enhanceparameters(parameters)
+ local xheight=parameters.x_height
+ local quad=parameters.quad
+ local space=parameters.space
+ local stretch=parameters.space_stretch
+ local shrink=parameters.space_shrink
+ local extra=parameters.extra_space
+ local slant=parameters.slant
+ parameters.xheight=xheight
+ parameters.spacestretch=stretch
+ parameters.spaceshrink=shrink
+ parameters.extraspace=extra
+ parameters.em=quad
+ parameters.ex=xheight
+ parameters.slantperpoint=slant
+ parameters.spacing={
+ width=space,
+ stretch=stretch,
+ shrink=shrink,
+ extra=extra,
+ }
+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
+ end
+ targetparameters.mathsize=mathsize
+ targetparameters.textsize=textsize
+ targetparameters.forcedsize=forcedsize
+ targetparameters.extrafactor=extrafactor
+ local tounicode=fonts.mappings.tounicode
+ local defaultwidth=resources.defaultwidth or 0
+ local defaultheight=resources.defaultheight or 0
+ local defaultdepth=resources.defaultdepth or 0
+ local units=parameters.units or 1000
+ if target.fonts then
+ target.fonts=fastcopy(target.fonts)
+ end
+ 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
+ if not psname or psname=="" then
+ psname=fontname or (fullname and fonts.names.cleanname(fullname))
+ end
+ 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
+ target.auto_expand=expansion.auto
+ end
+ local protrusion=parameters.protrusion
+ if protrusion then
+ target.auto_protrude=protrusion.auto
+ 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 slantfactor=parameters.slantfactor or 0
+ if slantfactor~=0 then
+ target.slant=slantfactor*1000
+ else
+ target.slant=0
+ end
+ targetparameters.factor=delta
+ targetparameters.hfactor=hdelta
+ targetparameters.vfactor=vdelta
+ targetparameters.size=scaledpoints
+ targetparameters.units=units
+ targetparameters.scaledpoints=askedscaledpoints
+ local isvirtual=properties.virtualized or tfmdata.type=="virtual"
+ local hasquality=target.auto_expand or target.auto_protrude
+ local hasitalics=properties.hasitalics
+ local autoitalicamount=properties.autoitalicamount
+ local stackmath=not properties.nostackmath
+ local nonames=properties.noglyphnames
+ local haskerns=properties.haskerns or properties.mode=="base"
+ local hasligatures=properties.hasligatures or properties.mode=="base"
+ local realdimensions=properties.realdimensions
+ if changed and not next(changed) then
+ changed=false
+ end
+ target.type=isvirtual and "virtual" or "real"
+ 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, hscale %a, vscale %a, math %a, italics %a",
+ name,fullname,filename,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 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
+ local width=description.width
+ local height=description.height
+ local depth=description.depth
+ 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 nonames then
+ chr={
+ index=index,
+ height=height,
+ depth=depth,
+ width=width,
+ }
+ else
+ chr={
+ name=description.name,
+ index=index,
+ height=height,
+ depth=depth,
+ width=width,
+ }
+ end
+ else
+ if nonames then
+ chr={
+ index=index,
+ height=height,
+ width=width,
+ }
+ else
+ chr={
+ name=description.name,
+ index=index,
+ height=height,
+ width=width,
+ }
+ end
+ end
+ local isunicode=description.unicode
+ if isunicode then
+ chr.unicode=isunicode
+ chr.tounicode=tounicode(isunicode)
+ 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]
+ t[i]={
+ ["start"]=(vvi["start"] or 0)*vdelta,
+ ["end"]=(vvi["end"] or 0)*vdelta,
+ ["advance"]=(vvi["advance"] or 0)*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]
+ t[i]={
+ ["start"]=(hvi["start"] or 0)*hdelta,
+ ["end"]=(hvi["end"] or 0)*hdelta,
+ ["advance"]=(hvi["advance"] or 0)*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 kerns={}
+ local v=mk.top_right if v then local k={} for i=1,#v do local vi=v[i]
+ k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern }
+ end kerns.top_right=k end
+ local v=mk.top_left if v then local k={} for i=1,#v do local vi=v[i]
+ k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern }
+ end kerns.top_left=k end
+ local v=mk.bottom_left if v then local k={} for i=1,#v do local vi=v[i]
+ k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern }
+ end kerns.bottom_left=k end
+ local v=mk.bottom_right if v then local k={} for i=1,#v do local vi=v[i]
+ k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern }
+ end kerns.bottom_right=k end
+ chr.mathkern=kerns
+ 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 vi=description.boundingbox[3]-description.width+autoitalicamount
+ if vi>0 then
+ chr.italic=vi*hdelta
+ 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" 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
+ chr.index=nil
+ end
+ end
+ targetcharacters[unicode]=chr
+ end
+ properties.setitalics=hasitalics
+ constructors.aftercopyingcharacters(target,tfmdata)
+ constructors.trytosharefont(target,tfmdata)
+ 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,
+ auto=tfmdata.auto_expand or false,
+ }
+ end
+ if not parameters.protrusion then
+ parameters.protrusion={
+ auto=auto_protrude
+ }
+ end
+ if not parameters.size then
+ parameters.size=tfmdata.size
+ end
+ if not parameters.extendfactor then
+ parameters.extendfactor=tfmdata.extend or 0
+ end
+ if not parameters.slantfactor then
+ parameters.slantfactor=tfmdata.slant or 0
+ 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
+ if not tfmdata.properties then
+ tfmdata.properties={
+ fontname=tfmdata.fontname,
+ filename=tfmdata.filename,
+ fullname=tfmdata.fullname,
+ name=tfmdata.name,
+ psname=tfmdata.psname,
+ encodingbytes=tfmdata.encodingbytes or 1,
+ embedding=tfmdata.embedding or "subset",
+ tounicode=tfmdata.tounicode or 1,
+ cidinfo=tfmdata.cidinfo or nil,
+ format=tfmdata.format or "type1",
+ direction=tfmdata.direction or 0,
+ }
+ end
+ 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.auto_expand=nil
+ tfmdata.auto_protrude=nil
+ tfmdata.extend=nil
+ tfmdata.slant=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,tn={},0
+ for category,list in next,features do
+ if next(list) then
+ local hasher=hashmethods[category]
+ if hasher then
+ local hash=hasher(list)
+ if hash then
+ tn=tn+1
+ t[tn]=category..":"..hash
+ end
+ end
+ end
+ end
+ if tn>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
+ s[n]=k
+ end
+ end
+ if n>0 then
+ sort(s)
+ for i=1,n do
+ local k=s[i]
+ s[i]=k..'='..tostring(list[k])
+ end
+ return concat(s,"+")
+ end
+end
+function constructors.hashinstance(specification,force)
+ local hash,size,fallbacks=specification.hash,specification.size,specification.fallbacks
+ if force or not hash then
+ hash=constructors.hashfeatures(specification)
+ specification.hash=hash
+ end
+ if size<1000 and designsizes[hash] then
+ size=math.round(constructors.scaled(size,designsizes[hash]))
+ specification.size=size
+ end
+ if fallbacks then
+ return hash..' @ '..tostring(size)..' @ '..fallbacks
+ else
+ return hash..' @ '..tostring(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)
+local locations={}
+local function setindeed(mode,target,group,name,action,position)
+ 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 node=source.node
+ local base=source.base
+ local position=source.position
+ if node then
+ setindeed("node",target,group,name,node,position)
+ end
+ if base then
+ setindeed("base",target,group,name,base,position)
+ end
+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
+function constructors.newhandler(what)
+ local handler=handlers[what]
+ if not handler then
+ handler={}
+ handlers[what]=handler
+ end
+ return handler
+end
+function constructors.newfeatures(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={} },
+ processors={ base={},node={} },
+ manipulators={ base={},node={} },
+ }
+ features.register=function(specification) return register(features,specification) end
+ handler.features=features
+ end
+ return features
+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 whatinitializers=whatfeatures.initializers
+ 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,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 --- [luaotfload, fontloader-2016-04-21.lua scope for “font-con”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “fonts-enc” b224fe179312d924ffaf8334cf5ef15b] ---
+
+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
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+end
+local fonts=fonts
+fonts.encodings={}
+fonts.encodings.agl={}
+fonts.encodings.known={}
+setmetatable(fonts.encodings.agl,{ __index=function(t,k)
+ if k=="unicodes" then
+ texio.write(" <loading (extended) adobe glyph list>")
+ local unicodes=dofile(resolvers.findfile("font-age.lua"))
+ fonts.encodings.agl={ unicodes=unicodes }
+ return unicodes
+ else
+ return nil
+ end
+end })
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “fonts-enc”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-cid” 52421d1fdaa07ec4b1d936c6ff5079be] ---
+
+if not modules then modules={} end modules ['font-cid']={
+ version=1.001,
+ comment="companion to font-otf.lua (cidmaps)",
+ 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 --- [luaotfload, fontloader-2016-04-21.lua scope for “font-cid”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-map” e2c9745ab1ec270ff356f241d2775e72] ---
+
+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 utfbyte=utf.byte
+local floor=math.floor
+local formatters=string.formatters
+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_unimapping=v end)
+local report_fonts=logs.reporter("fonts","loading")
+local fonts=fonts or {}
+local mappings=fonts.mappings or {}
+fonts.mappings=mappings
+local allocate=utilities.storage.allocate
+local hex=R("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,name)
+ if unicode<0xD7FF or (unicode>0xDFFF and unicode<=0xFFFF) then
+ return f_single(unicode)
+ else
+ unicode=unicode-0x10000
+ return f_double(floor(unicode/1024)+0xD800,unicode%1024+0xDC00)
+ end
+end
+local function tounicode16sequence(unicodes,name)
+ 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(floor(u/1024)+0xD800,u%1024+0xDC00)
+ end
+ end
+ return concat(t)
+end
+local function tounicode(unicode,name)
+ if type(unicode)=="table" then
+ local t={}
+ for l=1,#unicode do
+ local u=unicode[l]
+ if u<0xD7FF or (u>0xDFFF and u<=0xFFFF) then
+ t[l]=f_single(u)
+ else
+ u=u-0x10000
+ t[l]=f_double(floor(u/1024)+0xD800,u%1024+0xDC00)
+ end
+ end
+ return concat(t)
+ else
+ if unicode<0xD7FF or (unicode>0xDFFF and unicode<=0xFFFF) then
+ return f_single(unicode)
+ else
+ unicode=unicode-0x10000
+ return f_double(floor(unicode/1024)+0xD800,unicode%1024+0xDC00)
+ end
+ 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)
+local overloads=allocate {
+ 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 } },
+}
+for k,v in next,overloads do
+ local name=v.name
+ local mess=v.mess
+ if name then
+ overloads[name]=v
+ end
+ if mess then
+ overloads[mess]=v
+ end
+end
+mappings.overloads=overloads
+function mappings.addtounicode(data,filename,checklookups)
+ local resources=data.resources
+ local unicodes=resources.unicodes
+ if not unicodes then
+ return
+ end
+ local properties=data.properties
+ local descriptions=data.descriptions
+ 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
+ for unic,glyph in next,descriptions do
+ local name=glyph.name
+ if name then
+ local index=glyph.index
+ local r=overloads[name]
+ if r then
+ glyph.unicode=r.unicode
+ elseif not unic or unic==-1 or unic>=private or (unic>=0xE000 and unic<=0xF8FF) or unic==0xFFFE or unic==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,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[unic]=true
+ nofmissing=nofmissing+1
+ end
+ end
+ else
+ end
+ end
+ if type(checklookups)=="function" then
+ checklookups(data,missing,nofmissing)
+ end
+ local collected=false
+ local unicoded=0
+ for unicode,glyph in next,descriptions do
+ if not glyph.unicode and glyph.class=="ligature" then
+ if not collected then
+ collected=fonts.handlers.otf.readers.getcomponents(data)
+ if not collected then
+ break
+ end
+ end
+ local u=collected[unicode]
+ if u then
+ 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
+ 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 unic,glyph in table.sortedhash(descriptions) do
+ local name=glyph.name
+ local index=glyph.index
+ 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,unic,unicodes)
+ else
+ report_fonts("internal slot %U, name %a, unicode %U, tounicode %U",index,name,unic,unicode)
+ end
+ else
+ report_fonts("internal slot %U, name %a, unicode %U",index,name,unic)
+ 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 --- [luaotfload, fontloader-2016-04-21.lua scope for “font-map”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “fonts-syn” 6753dfb9a28aad35266284bb00072dca] ---
+
+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
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+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()
+ texio.write("<missing font database, run: mtxrun --script fonts --reload --simple>")
+ fonts.names.reportmissingbase=nil
+end
+function fonts.names.reportmissingname()
+ texio.write("<unknown font in 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)
+ texio.write("<font database 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 --- [luaotfload, fontloader-2016-04-21.lua scope for “fonts-syn”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-tfm” 022a6bd3108660a81d64832743459ff9] ---
+
+if not modules then modules={} end modules ['font-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=next
+local match=string.match
+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 fonts=fonts
+local handlers=fonts.handlers
+local readers=fonts.readers
+local constructors=fonts.constructors
+local encodings=fonts.encodings
+local tfm=constructors.newhandler("tfm")
+tfm.version=1.000
+tfm.maxnestingdepth=5
+tfm.maxnestingsize=65536*1024
+local tfmfeatures=constructors.newfeatures("tfm")
+local registertfmfeature=tfmfeatures.register
+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 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=font.read_tfm(filename,size)
+ if tfmdata then
+ local features=specification.features and specification.features.normal or {}
+ local resources=tfmdata.resources or {}
+ local properties=tfmdata.properties or {}
+ local parameters=tfmdata.parameters or {}
+ local shared=tfmdata.shared or {}
+ properties.name=tfmdata.name
+ properties.fontname=tfmdata.fontname
+ properties.psname=tfmdata.psname
+ properties.filename=specification.filename
+ properties.format=fonts.formats.tfm
+ parameters.size=size
+ tfmdata.properties=properties
+ tfmdata.resources=resources
+ tfmdata.parameters=parameters
+ tfmdata.shared=shared
+ shared.rawdata={}
+ shared.features=features
+ shared.processes=next(features) and tfm.setfeatures(tfmdata,features) or nil
+ 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)
+ if constructors.resolvevirtualtoo then
+ fonts.loggers.register(tfmdata,file.suffix(filename),specification)
+ local vfname=findbinfile(specification.name,'ovf')
+ if vfname and vfname~="" then
+ local vfdata=font.read_vf(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=fonts.constructors.readanddefine(n,s)
+ fontlist[i]={ id=id }
+ end
+ end
+ end
+ end
+ end
+ local allfeatures=tfmdata.shared.features or specification.features.normal
+ constructors.applymanipulators("tfm",tfmdata,allfeatures.normal,trace_features,report_tfm)
+ if not features.encoding then
+ local encoding,filename=match(properties.filename,"^(.-)%-(.*)$")
+ if filename and encoding and encodings.known and encodings.known[encoding] then
+ features.encoding=encoding
+ end
+ end
+ properties.haskerns=true
+ properties.haslogatures=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
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “font-tfm”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-afm” ece4863414d6b38c2e577110c9b55bd3] ---
+
+if not modules then modules={} end modules ['font-afm']={
+ 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=next,type,tonumber
+local format,match,gmatch,lower,gsub,strip=string.format,string.match,string.gmatch,string.lower,string.gsub,string.strip
+local abs=math.abs
+local P,S,C,R,lpegmatch,patterns=lpeg.P,lpeg.S,lpeg.C,lpeg.R,lpeg.match,lpeg.patterns
+local derivetable=table.derive
+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 findbinfile=resolvers.findbinfile
+local definers=fonts.definers
+local readers=fonts.readers
+local constructors=fonts.constructors
+local fontloader=fontloader
+local font_to_table=fontloader.to_table
+local open_font=fontloader.open
+local close_font=fontloader.close
+local afm=constructors.newhandler("afm")
+local pfb=constructors.newhandler("pfb")
+local afmfeatures=constructors.newfeatures("afm")
+local registerafmfeature=afmfeatures.register
+afm.version=1.500
+afm.cache=containers.define("fonts","afm",afm.version,true)
+afm.autoprefixed=true
+afm.helpdata={}
+afm.syncspace=true
+afm.addligatures=true
+afm.addtexligatures=true
+afm.addkerns=true
+local overloads=fonts.mappings.overloads
+local applyruntimefixes=fonts.treatments and fonts.treatments.applyfixes
+local function setmode(tfmdata,value)
+ if value then
+ tfmdata.properties.mode=lower(value)
+ end
+end
+registerafmfeature {
+ name="mode",
+ description="mode",
+ initializers={
+ base=setmode,
+ node=setmode,
+ }
+}
+local comment=P("Comment")
+local spacing=patterns.spacer
+local lineend=patterns.newline
+local words=C((1-lineend)^1)
+local number=C((R("09")+S("."))^1)/tonumber*spacing^0
+local data=lpeg.Carg(1)
+local pattern=(
+ comment*spacing*(
+ data*(
+ ("CODINGSCHEME"*spacing*words )/function(fd,a) end+("DESIGNSIZE"*spacing*number*words )/function(fd,a) fd[ 1]=a end+("CHECKSUM"*spacing*number*words )/function(fd,a) fd[ 2]=a end+("SPACE"*spacing*number*"plus"*number*"minus"*number)/function(fd,a,b,c) fd[ 3],fd[ 4],fd[ 5]=a,b,c end+("QUAD"*spacing*number )/function(fd,a) fd[ 6]=a end+("EXTRASPACE"*spacing*number )/function(fd,a) fd[ 7]=a end+("NUM"*spacing*number*number*number )/function(fd,a,b,c) fd[ 8],fd[ 9],fd[10]=a,b,c end+("DENOM"*spacing*number*number )/function(fd,a,b ) fd[11],fd[12]=a,b end+("SUP"*spacing*number*number*number )/function(fd,a,b,c) fd[13],fd[14],fd[15]=a,b,c end+("SUB"*spacing*number*number )/function(fd,a,b) fd[16],fd[17]=a,b end+("SUPDROP"*spacing*number )/function(fd,a) fd[18]=a end+("SUBDROP"*spacing*number )/function(fd,a) fd[19]=a end+("DELIM"*spacing*number*number )/function(fd,a,b) fd[20],fd[21]=a,b end+("AXISHEIGHT"*spacing*number )/function(fd,a) fd[22]=a end
+ )+(1-lineend)^0
+ )+(1-comment)^1
+)^0
+local function scan_comment(str)
+ local fd={}
+ lpegmatch(pattern,str,1,fd)
+ return fd
+end
+local keys={}
+function keys.FontName (data,line) data.metadata.fontname=strip (line)
+ data.metadata.fullname=strip (line) end
+function keys.ItalicAngle (data,line) data.metadata.italicangle=tonumber (line) end
+function keys.IsFixedPitch(data,line) data.metadata.monospaced=toboolean(line,true) end
+function keys.CharWidth (data,line) data.metadata.charwidth=tonumber (line) end
+function keys.XHeight (data,line) data.metadata.xheight=tonumber (line) end
+function keys.Descender (data,line) data.metadata.descender=tonumber (line) end
+function keys.Ascender (data,line) data.metadata.ascender=tonumber (line) end
+function keys.Comment (data,line)
+ line=lower(line)
+ local designsize=match(line,"designsize[^%d]*(%d+)")
+ if designsize then data.metadata.designsize=tonumber(designsize) end
+end
+local function get_charmetrics(data,charmetrics,vector)
+ local characters=data.characters
+ local chr,ind={},0
+ for k,v in gmatch(charmetrics,"([%a]+) +(.-) *;") do
+ if k=='C' then
+ v=tonumber(v)
+ if v<0 then
+ ind=ind+1
+ else
+ ind=v
+ end
+ chr={
+ index=ind
+ }
+ elseif k=='WX' then
+ chr.width=tonumber(v)
+ elseif k=='N' then
+ characters[v]=chr
+ elseif k=='B' then
+ local llx,lly,urx,ury=match(v,"^ *(.-) +(.-) +(.-) +(.-)$")
+ chr.boundingbox={ tonumber(llx),tonumber(lly),tonumber(urx),tonumber(ury) }
+ elseif k=='L' then
+ local plus,becomes=match(v,"^(.-) +(.-)$")
+ local ligatures=chr.ligatures
+ if ligatures then
+ ligatures[plus]=becomes
+ else
+ chr.ligatures={ [plus]=becomes }
+ end
+ end
+ end
+end
+local function get_kernpairs(data,kernpairs)
+ local characters=data.characters
+ for one,two,value in gmatch(kernpairs,"KPX +(.-) +(.-) +(.-)\n") do
+ local chr=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
+end
+local function get_variables(data,fontmetrics)
+ for key,rest in gmatch(fontmetrics,"(%a+) *(.-)[\n\r]") do
+ local keyhandler=keys[key]
+ if keyhandler then
+ keyhandler(data,rest)
+ end
+ end
+end
+local function get_indexes(data,pfbname)
+ data.resources.filename=resolvers.unresolve(pfbname)
+ local pfbblob=open_font(pfbname)
+ if pfbblob then
+ local characters=data.characters
+ local pfbdata=font_to_table(pfbblob)
+ if pfbdata then
+ local glyphs=pfbdata.glyphs
+ if glyphs then
+ if trace_loading then
+ report_afm("getting index data from %a",pfbname)
+ end
+ for index,glyph in next,glyphs do
+ local name=glyph.name
+ if name then
+ local char=characters[name]
+ if char then
+ if trace_indexing then
+ report_afm("glyph %a has index %a",name,index)
+ end
+ char.index=index
+ end
+ end
+ end
+ elseif trace_loading then
+ report_afm("no glyph data in pfb file %a",pfbname)
+ end
+ elseif trace_loading then
+ report_afm("no data in pfb file %a",pfbname)
+ end
+ close_font(pfbblob)
+ elseif trace_loading then
+ report_afm("invalid pfb file %a",pfbname)
+ end
+end
+local function readafm(filename)
+ local ok,afmblob,size=resolvers.loadbinfile(filename)
+ if ok and 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={
+ },
+ }
+ afmblob=gsub(afmblob,"StartCharMetrics(.-)EndCharMetrics",function(charmetrics)
+ if trace_loading then
+ report_afm("loading char metrics")
+ end
+ get_charmetrics(data,charmetrics,vector)
+ return ""
+ end)
+ afmblob=gsub(afmblob,"StartKernPairs(.-)EndKernPairs",function(kernpairs)
+ if trace_loading then
+ report_afm("loading kern pairs")
+ end
+ get_kernpairs(data,kernpairs)
+ return ""
+ end)
+ afmblob=gsub(afmblob,"StartFontMetrics%s+([%d%.]+)(.-)EndFontMetrics",function(version,fontmetrics)
+ if trace_loading then
+ report_afm("loading variables")
+ end
+ data.afmversion=version
+ get_variables(data,fontmetrics)
+ data.fontdimens=scan_comment(fontmetrics)
+ return ""
+ end)
+ return data
+ else
+ if trace_loading then
+ report_afm("no valid afm file %a",filename)
+ end
+ return nil
+ end
+end
+local addkerns,addligatures,addtexligatures,unify,normalize,fixnames
+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,time=attr.size or 0,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,pfbtime=0,0
+ 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=readafm(filename)
+ if data then
+ if pfbname~="" then
+ get_indexes(data,pfbname)
+ elseif trace_loading then
+ report_afm("no pfb file for %a",filename)
+ end
+ report_afm("unifying %a",filename)
+ unify(data,filename)
+ if afm.addligatures then
+ report_afm("add ligatures")
+ addligatures(data)
+ end
+ if afm.addtexligatures then
+ report_afm("add tex ligatures")
+ addtexligatures(data)
+ end
+ if afm.addkerns then
+ report_afm("add extra kerns")
+ addkerns(data)
+ end
+ normalize(data)
+ fixnames(data)
+ report_afm("add tounicode data")
+ fonts.mappings.addtounicode(data,filename)
+ data.size=size
+ data.time=time
+ data.pfbsize=pfbsize
+ data.pfbtime=pfbtime
+ report_afm("saving %a in cache",name)
+ data.resources.unicodes=nil
+ data=containers.write(afm.cache,name,data)
+ data=containers.read(afm.cache,name)
+ end
+ if applyruntimefixes and data then
+ applyruntimefixes(filename,data)
+ end
+ end
+ return data
+ else
+ return nil
+ end
+end
+local uparser=fonts.mappings.makenameparser()
+unify=function(data,filename)
+ local unicodevector=fonts.encodings.agl.unicodes
+ local unicodes,names={},{}
+ local private=constructors.privateoffset
+ local descriptions=data.descriptions
+ for name,blob in next,data.characters do
+ local code=unicodevector[name]
+ if not code then
+ code=lpegmatch(uparser,name)
+ if not code 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
+ local resources=data.resources
+ local filename=resources.filename or file.removesuffix(file.basename(filename))
+ resources.filename=resolvers.unresolve(filename)
+ resources.unicodes=unicodes
+ resources.marks={}
+ resources.private=private
+end
+normalize=function(data)
+end
+fixnames=function(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,three=unicodes[pair[1]],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
+addligatures=function(rawdata) addthem(rawdata,afm.helpdata.ligatures ) end
+addtexligatures=function(rawdata) addthem(rawdata,afm.helpdata.texligatures) end
+addkerns=function(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,dp=bb[4],-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=0x0020
+ local emdash=0x2014
+ 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
+ if properties.monospaced then
+ if descriptions[endash] then
+ spaceunits,spacer=descriptions[endash].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[endash] then
+ spaceunits,spacer=descriptions[endash].width,"space"
+ end
+ if not spaceunits and charwidth then
+ spaceunits,spacer=charwidth,"charwidth"
+ end
+ end
+ spaceunits=tonumber(spaceunits)
+ if spaceunits<200 then
+ 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
+ local fd=data.fontdimens
+ if fd and fd[8] and fd[9] and fd[10] then
+ for k,v in next,fd do
+ parameters[k]=v
+ end
+ 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
+ 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.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
+local function prepareligatures(tfmdata,ligatures,value)
+ if value then
+ local descriptions=tfmdata.descriptions
+ local hasligatures=false
+ for unicode,character in next,tfmdata.characters do
+ local description=descriptions[unicode]
+ local dligatures=description.ligatures
+ if dligatures then
+ local cligatures=character.ligatures
+ if not cligatures then
+ cligatures={}
+ character.ligatures=cligatures
+ end
+ for unicode,ligature in next,dligatures do
+ cligatures[unicode]={
+ char=ligature,
+ type=0
+ }
+ end
+ hasligatures=true
+ end
+ end
+ tfmdata.properties.hasligatures=hasligatures
+ end
+end
+local function preparekerns(tfmdata,kerns,value)
+ if value then
+ local rawdata=tfmdata.shared.rawdata
+ local resources=rawdata.resources
+ local unicodes=resources.unicodes
+ local descriptions=tfmdata.descriptions
+ local haskerns=false
+ for u,chr in next,tfmdata.characters do
+ local d=descriptions[u]
+ local newkerns=d[kerns]
+ if newkerns then
+ local kerns=chr.kerns
+ if not kerns then
+ kerns={}
+ chr.kerns=kerns
+ end
+ for k,v in next,newkerns do
+ local uk=unicodes[k]
+ if uk then
+ kerns[uk]=v
+ end
+ end
+ haskerns=true
+ end
+ end
+ tfmdata.properties.haskerns=haskerns
+ end
+end
+local list={
+ [0x0027]=0x2019,
+}
+local function texreplacements(tfmdata,value)
+ local descriptions=tfmdata.descriptions
+ local characters=tfmdata.characters
+ for k,v in next,list do
+ characters [k]=characters [v]
+ descriptions[k]=descriptions[v]
+ end
+end
+local function ligatures (tfmdata,value) prepareligatures(tfmdata,'ligatures',value) end
+local function texligatures(tfmdata,value) prepareligatures(tfmdata,'texligatures',value) end
+local function kerns (tfmdata,value) preparekerns (tfmdata,'kerns',value) end
+local function extrakerns (tfmdata,value) preparekerns (tfmdata,'extrakerns',value) end
+registerafmfeature {
+ name="liga",
+ description="traditional ligatures",
+ initializers={
+ base=ligatures,
+ node=ligatures,
+ }
+}
+registerafmfeature {
+ name="kern",
+ description="intercharacter kerning",
+ initializers={
+ base=kerns,
+ node=kerns,
+ }
+}
+registerafmfeature {
+ name="extrakerns",
+ description="additional intercharacter kerning",
+ initializers={
+ base=extrakerns,
+ node=extrakerns,
+ }
+}
+registerafmfeature {
+ name='tlig',
+ description='tex ligatures',
+ initializers={
+ base=texligatures,
+ node=texligatures,
+ }
+}
+registerafmfeature {
+ name='trep',
+ description='tex replacements',
+ initializers={
+ base=texreplacements,
+ node=texreplacements,
+ }
+}
+local check_tfm=readers.check_tfm
+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 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,tfmdata=specification.filename or "",nil
+ if fullname=="" then
+ local forced=specification.forced or ""
+ if forced~="" then
+ tfmdata=check_afm(specification,specification.name.."."..forced)
+ end
+ if not tfmdata then
+ method=method or definers.method or "afm or tfm"
+ 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.specification=gsub(original,"%.pfb",".afm")
+ specification.forced="afm"
+ return readers.afm(specification,method)
+end
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “font-afm”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-afk” b36a76ceb835f41f8c05b471000ddc14] ---
+
+if not modules then modules={} end modules ['font-afk']={
+ version=1.001,
+ comment="companion to font-afm.lua",
+ 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 --- [luaotfload, fontloader-2016-04-21.lua scope for “font-afk”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-oti” b6d493035cec2d748f2f9ec510c860ef] ---
+
+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.newhandler("otf")
+local otffeatures=constructors.newfeatures("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
+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,
+ }
+}
+registerotffeature {
+ name="language",
+ description="language",
+ initializers={
+ base=setlanguage,
+ node=setlanguage,
+ }
+}
+registerotffeature {
+ name="script",
+ description="script",
+ initializers={
+ base=setscript,
+ node=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 --- [luaotfload, fontloader-2016-04-21.lua scope for “font-oti”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-otr” a0842c3bc6246f078d455e51fc09437f] ---
+
+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"
+}
+if not characters then
+ require("char-def")
+ require("char-ini")
+end
+local next,type,unpack=next,type,unpack
+local byte,lower,char,strip,gsub=string.byte,string.lower,string.char,string.strip,string.gsub
+local bittest=bit32.btest
+local concat,remove,unpack=table.concat,table.remov,table.unpack
+local floor,mod,abs,sqrt,round=math.floor,math.mod,math.abs,math.sqrt,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 setmetatableindex=table.setmetatableindex
+local formatters=string.formatters
+local sortedkeys=table.sortedkeys
+local sortedhash=table.sortedhash
+local stripstring=string.strip
+local utf16_to_utf8_be=utf.utf16_to_utf8_be
+local report=logs.reporter("otf reader")
+local trace_cmap=false
+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
+readers.streamreader=streamreader
+local openfile=streamreader.open
+local closefile=streamreader.close
+local skipbytes=streamreader.skip
+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 readchar=streamreader.readinteger1
+local readshort=streamreader.readinteger2
+local readlong=streamreader.readinteger4
+local readfixed=streamreader.readfixed4
+local readfword=readshort
+local readufword=readushort
+local readoffset=readushort
+local read2dot14=streamreader.read2dot14
+function streamreader.readtag(f)
+ return lower(strip(readstring(f,4)))
+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
+local privateoffset=fonts.constructors and fonts.constructors.privateoffset or 0xF0000
+readers.tableversion=tableversion
+local reportedskipped={}
+local function reportskippedtable(tag)
+ if not reportedskipped[tag] then
+ report("loading of table %a skipped (reported once only)",tag)
+ reportedskipped[tag]=true
+ end
+end
+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",
+}
+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 platformnames={
+ postscriptname=true,
+ fullname=true,
+ family=true,
+ subfamily=true,
+ typographicfamily=true,
+ typographicsubfamily=true,
+ compatiblefullname=true,
+}
+function readers.name(f,fontdata,specification)
+ local datatable=fontdata.tables.name
+ if datatable then
+ setposition(f,datatable.offset)
+ local format=readushort(f)
+ local nofnames=readushort(f)
+ local offset=readushort(f)
+ local start=datatable.offset+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 name=reservednames[readushort(f)]
+ if name then
+ namelist[#namelist+1]={
+ platform=platform,
+ encoding=encoding,
+ language=language,
+ name=name,
+ length=readushort(f),
+ offset=start+readushort(f),
+ }
+ else
+ skipshort(f,2)
+ end
+ 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 function filter(platform,e,l)
+ local namelist=namelists[platform]
+ for i=1,#namelist do
+ local name=namelist[i]
+ local nametag=name.name
+ if not done[nametag] 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=readstring(f,name.length)
+ local decoder=decoders[platform]
+ if decoder then
+ decoder=decoder[encoding]
+ end
+ if decoder then
+ content=decoder(content)
+ end
+ names[nametag]={
+ content=content,
+ platform=platform,
+ encoding=encoding,
+ language=language,
+ }
+ done[nametag]=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
+ if specification.platformnames then
+ local collected={}
+ 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] then
+ setposition(f,entry.offset)
+ local content=readstring(f,entry.length)
+ local encoding=entry.encoding
+ local decoder=decoders[platform]
+ if decoder then
+ decoder=decoder[encoding]
+ end
+ if decoder then
+ content=decoder(content)
+ end
+ 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 datatable=fontdata.tables["os/2"]
+ if datatable then
+ setposition(f,datatable.offset)
+ 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>=3 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 datatable=fontdata.tables.head
+ if datatable then
+ setposition(f,datatable.offset)
+ local fontheader={
+ version=readfixed(f),
+ revision=readfixed(f),
+ checksum=readulong(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)
+ if specification.details then
+ local datatable=fontdata.tables.hhea
+ if datatable then
+ setposition(f,datatable.offset)
+ fontdata.horizontalheader={
+ version=readfixed(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),
+ nofhmetrics=readushort(f),
+ }
+ else
+ fontdata.horizontalheader={
+ nofhmetrics=0,
+ }
+ end
+ end
+end
+readers.maxp=function(f,fontdata,specification)
+ if specification.details then
+ local datatable=fontdata.tables.maxp
+ if datatable then
+ setposition(f,datatable.offset)
+ local version=readfixed(f)
+ local nofglyphs=readushort(f)
+ fontdata.nofglyphs=nofglyphs
+ if version==0.5 then
+ fontdata.maximumprofile={
+ version=version,
+ nofglyphs=nofglyphs,
+ }
+ return
+ elseif version==1.0 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),
+ }
+ return
+ end
+ end
+ fontdata.maximumprofile={
+ version=version,
+ nofglyphs=0,
+ }
+ end
+end
+readers.hmtx=function(f,fontdata,specification)
+ if specification.glyphs then
+ local datatable=fontdata.tables.hmtx
+ if datatable then
+ setposition(f,datatable.offset)
+ local nofmetrics=fontdata.horizontalheader.nofhmetrics
+ local glyphs=fontdata.glyphs
+ local nofglyphs=fontdata.nofglyphs
+ local nofrepeated=nofglyphs-nofmetrics
+ local width=0
+ local leftsidebearing=0
+ for i=0,nofmetrics-1 do
+ local glyph=glyphs[i]
+ width=readshort(f)
+ leftsidebearing=readshort(f)
+ if advance~=0 then
+ glyph.width=width
+ end
+ end
+ for i=nofmetrics,nofrepeated do
+ local glyph=glyphs[i]
+ if width~=0 then
+ glyph.width=width
+ end
+ end
+ end
+ end
+end
+readers.post=function(f,fontdata,specification)
+ local datatable=fontdata.tables.post
+ if datatable then
+ setposition(f,datatable.offset)
+ local version=readfixed(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==1.0 then
+ for index=0,#standardromanencoding do
+ glyphs[index].name=standardromanencoding[index]
+ end
+ elseif version==2.0 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
+ elseif version==2.5 then
+ elseif version==3.0 then
+ end
+ else
+ fontdata.postscript={}
+ end
+end
+readers.cff=function(f,fontdata,specification)
+ if specification.glyphs then
+ reportskippedtable("cff")
+ end
+end
+local formatreaders={}
+local duplicatestoo=true
+local sequence={
+ { 3,1,4 },
+ { 3,10,12 },
+ { 0,3,4 },
+ { 0,1,4 },
+ { 0,0,6 },
+ { 3,0,6 },
+ { 0,5,14 },
+}
+local supported={}
+for i=1,#sequence do
+ local sp,se,sf=unpack(sequence[i])
+ 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 endchars={}
+ local startchars={}
+ local deltas={}
+ local offsets={}
+ local indices={}
+ local mapping=fontdata.mapping
+ local glyphs=fontdata.glyphs
+ local duplicates=fontdata.duplicates
+ local nofdone=0
+ for i=1,nofsegments do
+ endchars[i]=readushort(f)
+ end
+ local reserved=readushort(f)
+ for i=1,nofsegments do
+ startchars[i]=readushort(f)
+ end
+ for i=1,nofsegments do
+ deltas[i]=readshort(f)
+ end
+ for i=1,nofsegments do
+ offsets[i]=readushort(f)
+ end
+ local size=(length-2*2-5*2-4*nofsegments*2)/2
+ for i=1,size-1 do
+ indices[i]=readushort(f)
+ end
+ 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 then
+ report("format 4.%i segment %2i from %C upto %C at index %H",1,segment,startchar,endchar,mod(startchar+delta,65536))
+ end
+ for unicode=startchar,endchar do
+ local index=mod(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 then
+ report("format 4.%i segment %2i from %C upto %C at index %H",0,segment,startchar,endchar,mod(startchar+delta,65536))
+ end
+ for unicode=startchar,endchar do
+ local slot=shift+unicode
+ local index=indices[slot]
+ if index and index>0 then
+ index=mod(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 then
+ report("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 then
+ report("format 12 from %C to %C",first,last)
+ 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[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 data=records[platform]
+ if not data then
+ return 0
+ end
+ data=data[encoding]
+ if not data then
+ return 0
+ end
+ data=data[format]
+ if not data then
+ return 0
+ end
+ local reader=formatreaders[format]
+ if not reader then
+ return 0
+ end
+ local p=platforms[platform]
+ local e=encodings[p]
+ local n=reader(f,fontdata,data) or 0
+ report("cmap checked: platform %i (%s), encoding %i (%s), format %i, new unicodes %i",platform,p,encoding,e and e[encoding] or "?",format,n)
+ return n
+end
+function readers.cmap(f,fontdata,specification)
+ if specification.glyphs then
+ local datatable=fontdata.tables.cmap
+ if datatable then
+ local tableoffset=datatable.offset
+ setposition(f,tableoffset)
+ 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
+ report("found cmaps:")
+ for platform,record in sortedhash(records) do
+ local p=platforms[platform]
+ local e=encodings[p]
+ local sp=supported[platform]
+ local ps=p or "?"
+ if sp then
+ report(" platform %i: %s",platform,ps)
+ else
+ report(" platform %i: %s (unsupported)",platform,ps)
+ end
+ for encoding,subtables in sortedhash(record) do
+ local se=sp and sp[encoding]
+ local es=e and e[encoding] or "?"
+ if se then
+ report(" encoding %i: %s",encoding,es)
+ else
+ report(" encoding %i: %s (unsupported)",encoding,es)
+ 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
+ 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
+ local ok=false
+ for i=1,#sequence do
+ local sp,se,sf=unpack(sequence[i])
+ 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
+end
+function readers.loca(f,fontdata,specification)
+ if specification.glyphs then
+ reportskippedtable("loca")
+ end
+end
+function readers.glyf(f,fontdata,specification)
+ if specification.glyphs then
+ reportskippedtable("glyf")
+ end
+end
+function readers.kern(f,fontdata,specification)
+ if specification.kerns then
+ local datatable=fontdata.tables.kern
+ if datatable then
+ setposition(f,datatable.offset)
+ 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=bit32.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
+end
+function readers.gdef(f,fontdata,specification)
+ if specification.details then
+ reportskippedtable("gdef")
+ end
+end
+function readers.gsub(f,fontdata,specification)
+ if specification.details then
+ reportskippedtable("gsub")
+ end
+end
+function readers.gpos(f,fontdata,specification)
+ if specification.details then
+ reportskippedtable("gpos")
+ end
+end
+function readers.math(f,fontdata,specification)
+ if specification.glyphs then
+ reportskippedtable("math")
+ end
+end
+local function packoutlines(data,makesequence)
+ local subfonts=data.subfonts
+ if subfonts then
+ for i=1,#subfonts do
+ packoutlines(subfonts[i],makesequence)
+ end
+ return
+ end
+ local common=data.segments
+ if common then
+ return
+ end
+ local glyphs=data.glyphs
+ if not glyphs then
+ return
+ end
+ if makesequence then
+ for index=1,#glyphs do
+ local glyph=glyphs[index]
+ local segments=glyph.segments
+ if segments then
+ local sequence={}
+ local nofsequence=0
+ for i=1,#segments do
+ local segment=segments[i]
+ local nofsegment=#segment
+ nofsequence=nofsequence+1
+ sequence[nofsequence]=segment[nofsegment]
+ for i=1,nofsegment-1 do
+ nofsequence=nofsequence+1
+ sequence[nofsequence]=segment[i]
+ end
+ end
+ glyph.sequence=sequence
+ glyph.segments=nil
+ end
+ end
+ else
+ local hash={}
+ local common={}
+ local reverse={}
+ local last=0
+ for index=1,#glyphs do
+ local segments=glyphs[index].segments
+ if segments then
+ for i=1,#segments do
+ local h=concat(segments[i]," ")
+ hash[h]=(hash[h] or 0)+1
+ end
+ end
+ end
+ for index=1,#glyphs do
+ local segments=glyphs[index].segments
+ if segments then
+ for i=1,#segments do
+ local segment=segments[i]
+ local h=concat(segment," ")
+ if hash[h]>1 then
+ local idx=reverse[h]
+ if not idx then
+ last=last+1
+ reverse[h]=last
+ common[last]=segment
+ idx=last
+ end
+ segments[i]=idx
+ end
+ end
+ end
+ end
+ if last>0 then
+ data.segments=common
+ end
+ end
+end
+local function unpackoutlines(data)
+ local subfonts=data.subfonts
+ if subfonts then
+ for i=1,#subfonts do
+ unpackoutlines(subfonts[i])
+ end
+ return
+ end
+ local common=data.segments
+ if not common then
+ return
+ end
+ local glyphs=data.glyphs
+ if not glyphs then
+ return
+ end
+ for index=1,#glyphs do
+ local segments=glyphs[index].segments
+ if segments then
+ for i=1,#segments do
+ local c=common[segments[i]]
+ if c then
+ segments[i]=c
+ end
+ end
+ end
+ end
+ data.segments=nil
+end
+otf.packoutlines=packoutlines
+otf.unpackoutlines=unpackoutlines
+local function getinfo(maindata,sub,platformnames,rawfamilynames)
+ 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 filename=fontdata.filename
+ local weight=getname(fontdata,"weight") or cffinfo.weight or metrics.weight
+ local width=getname(fontdata,"width") or cffinfo.width or 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
+ 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,
+ monospaced=(tonumber(postscript.monospaced or 0)>0) or metrics.panosewidth=="monospaced",
+ averagewidth=metrics.averagewidth,
+ xheight=metrics.xheight,
+ capheight=metrics.capheight,
+ ascender=metrics.typoascender,
+ descender=metrics.typodescender,
+ platformnames=platformnames and fontdata.platformnames or nil,
+ }
+ 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,
+ }
+ for i=1,fontdata.noftables do
+ local tag=lower(stripstring(readstring(f,4)))
+ local checksum=readulong(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
+ if tables.cff then
+ fontdata.format="opentype"
+ else
+ fontdata.format="truetype"
+ end
+ return fontdata
+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 readdata(f,offset,specification)
+ local fontdata=loadtables(f,specification,offset)
+ if specification.glyphs then
+ prepareglyps(fontdata)
+ end
+ readers["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
+ readers["os/2"](f,fontdata,specification)
+ readers["head"](f,fontdata,specification)
+ readers["maxp"](f,fontdata,specification)
+ readers["hhea"](f,fontdata,specification)
+ readers["hmtx"](f,fontdata,specification)
+ readers["post"](f,fontdata,specification)
+ readers["cff" ](f,fontdata,specification)
+ readers["cmap"](f,fontdata,specification)
+ readers["loca"](f,fontdata,specification)
+ readers["glyf"](f,fontdata,specification)
+ readers["kern"](f,fontdata,specification)
+ readers["gdef"](f,fontdata,specification)
+ readers["gsub"](f,fontdata,specification)
+ readers["gpos"](f,fontdata,specification)
+ readers["math"](f,fontdata,specification)
+ fontdata.locations=nil
+ fontdata.tables=nil
+ fontdata.cidmaps=nil
+ fontdata.dictionaries=nil
+ 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 offsets={}
+ local ttcversion=readulong(f)
+ local nofsubfonts=readulong(f)
+ for i=1,nofsubfonts do
+ offsets[i]=readulong(f)
+ end
+ 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)
+ if type(specification)=="string" then
+ specification={
+ filename=specification,
+ info=true,
+ details=true,
+ glyphs=true,
+ shapes=true,
+ kerns=true,
+ globalkerns=true,
+ lookups=true,
+ subfont=n or true,
+ tounicode=false,
+ }
+ 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
+ local function message(str)
+ report("fatal error in file %a: %s\n%s",specification.filename,str,debug.traceback())
+ end
+ local ok,result=xpcall(loadfontdata,message,specification)
+ if ok then
+ return result
+ end
+end
+function readers.loadshapes(filename,n)
+ local fontdata=loadfont {
+ filename=filename,
+ shapes=true,
+ subfont=n,
+ }
+ return fontdata and {
+ filename=filename,
+ format=fontdata.format,
+ glyphs=fontdata.glyphs,
+ units=fontdata.fontheader.units,
+ } or {
+ filename=filename,
+ format="unknown",
+ glyphs={},
+ units=0,
+ }
+end
+function readers.loadfont(filename,n)
+ local fontdata=loadfont {
+ filename=filename,
+ glyphs=true,
+ shapes=false,
+ lookups=true,
+ subfont=n,
+ }
+ 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),
+ properties={
+ hasitalics=fontdata.hasitalics or false,
+ },
+ 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,
+ },
+ }
+ end
+end
+function readers.getinfo(filename,specification)
+ local subfont=nil
+ local platformnames=false
+ local rawfamilynames=false
+ if type(specification)=="table" then
+ subfont=tonumber(specification.subfont)
+ platformnames=specification.platformnames
+ rawfamilynames=specification.rawfamilynames
+ else
+ subfont=tonumber(specification)
+ end
+ local fontdata=loadfont {
+ filename=filename,
+ details=true,
+ platformnames=platformnames,
+ }
+ if fontdata then
+ local subfonts=fontdata.subfonts
+ if not subfonts then
+ return getinfo(fontdata,nil,platformnames,rawfamilynames)
+ elseif not subfont then
+ local info={}
+ for i=1,#subfonts do
+ info[i]=getinfo(fontdata,i,platformnames,rawfamilynames)
+ end
+ return info
+ elseif subfont>=1 and subfont<=#subfonts then
+ return getinfo(fontdata,subfont,platformnames,rawfamilynames)
+ 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
+if fonts.hashes then
+ local identifiers=fonts.hashes.identifiers
+ local loadshapes=readers.loadshapes
+ readers.version=0.006
+ readers.cache=containers.define("fonts","shapes",readers.version,true)
+ local function load(filename,sub)
+ local base=file.basename(filename)
+ local name=file.removesuffix(base)
+ local kind=file.suffix(filename)
+ local attr=lfs.attributes(filename)
+ local size=attr and attr.size or 0
+ local time=attr and attr.modification or 0
+ local sub=tonumber(sub)
+ if size>0 and (kind=="otf" or kind=="ttf" or kind=="tcc") then
+ local hash=containers.cleanname(base)
+ if sub then
+ hash=hash.."-"..sub
+ end
+ data=containers.read(readers.cache,hash)
+ if not data or data.time~=time or data.size~=size then
+ data=loadshapes(filename,sub)
+ if data then
+ data.size=size
+ data.format=data.format or (kind=="otf" and "opentype") or "truetype"
+ data.time=time
+ packoutlines(data)
+ containers.write(readers.cache,hash,data)
+ data=containers.read(readers.cache,hash)
+ end
+ end
+ unpackoutlines(data)
+ else
+ data={
+ filename=filename,
+ size=0,
+ time=time,
+ format="unknown",
+ units=1000,
+ glyphs={}
+ }
+ end
+ return data
+ end
+ fonts.hashes.shapes=table.setmetatableindex(function(t,k)
+ local d=identifiers[k]
+ local v=load(d.properties.filename,d.subindex)
+ t[k]=v
+ return v
+ end)
+end
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “font-otr”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-cff” 84590de32a9d3bcd1e3fee0bb667e9c2] ---
+
+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=next,type,tonumber
+local byte=string.byte
+local concat,remove=table.concat,table.remove
+local floor,abs,round,ceil=math.floor,math.abs,math.round,math.ceil
+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 readers=fonts.handlers.otf.readers
+local streamreader=readers.streamreader
+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 setposition=streamreader.setposition
+local getposition=streamreader.getposition
+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 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 header={
+ offset=offset,
+ major=readbyte(f),
+ minor=readbyte(f),
+ size=readbyte(f),
+ osize=readbyte(f),
+ }
+ setposition(f,offset+header.size)
+ return header
+end
+local function readlengths(f)
+ local count=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)
+ lengths[i]=offset-previous
+ 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("\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]
+ end+P("\20")/function()
+ result.defaultwidthx=stack[top]
+ end+P("\21")/function()
+ result.nominalwidthx=stack[top]
+ 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("\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 p_last=P("\x0F")/"0"+P("\x1F")/"1"+P("\x2F")/"2"+P("\x3F")/"3"+P("\x4F")/"4"+P("\x5F")/"5"+P("\x6F")/"6"+P("\x7F")/"7"+P("\x8F")/"8"+P("\x9F")/"9"+P("\xAF")/""+P("\xBF")/""+P("\xCF")/""+P("\xDF")/""+P("\xEF")/""+R("\xF0\xFF")/""
+ 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"]="0.",["\x1B"]="0E",["\x1C"]="0E-",["\x1D"]="0",["\x1E"]="0-",["\x1F"]="0",
+ ["\x20"]="20",["\x21"]="21",["\x22"]="22",["\x23"]="23",["\x24"]="24",["\x25"]="25",["\x26"]="26",["\x27"]="27",["\x28"]="28",["\x29"]="29",["\x2A"]="0.",["\x2B"]="0E",["\x2C"]="0E-",["\x2D"]="0",["\x2E"]="0-",["\x2F"]="0",
+ ["\x30"]="30",["\x31"]="31",["\x32"]="32",["\x33"]="33",["\x34"]="34",["\x35"]="35",["\x36"]="36",["\x37"]="37",["\x38"]="38",["\x39"]="39",["\x3A"]="0.",["\x3B"]="0E",["\x3C"]="0E-",["\x3D"]="0",["\x3E"]="0-",["\x3F"]="0",
+ ["\x40"]="40",["\x41"]="41",["\x42"]="42",["\x43"]="43",["\x44"]="44",["\x45"]="45",["\x46"]="46",["\x47"]="47",["\x48"]="48",["\x49"]="49",["\x4A"]="0.",["\x4B"]="0E",["\x4C"]="0E-",["\x4D"]="0",["\x4E"]="0-",["\x4F"]="0",
+ ["\x50"]="50",["\x51"]="51",["\x52"]="52",["\x53"]="53",["\x54"]="54",["\x55"]="55",["\x56"]="56",["\x57"]="57",["\x58"]="58",["\x59"]="59",["\x5A"]="0.",["\x5B"]="0E",["\x5C"]="0E-",["\x5D"]="0",["\x5E"]="0-",["\x5F"]="0",
+ ["\x60"]="60",["\x61"]="61",["\x62"]="62",["\x63"]="63",["\x64"]="64",["\x65"]="65",["\x66"]="66",["\x67"]="67",["\x68"]="68",["\x69"]="69",["\x6A"]="0.",["\x6B"]="0E",["\x6C"]="0E-",["\x6D"]="0",["\x6E"]="0-",["\x6F"]="0",
+ ["\x70"]="70",["\x71"]="71",["\x72"]="72",["\x73"]="73",["\x74"]="74",["\x75"]="75",["\x76"]="76",["\x77"]="77",["\x78"]="78",["\x79"]="79",["\x7A"]="0.",["\x7B"]="0E",["\x7C"]="0E-",["\x7D"]="0",["\x7E"]="0-",["\x7F"]="0",
+ ["\x80"]="80",["\x81"]="81",["\x82"]="82",["\x83"]="83",["\x84"]="84",["\x85"]="85",["\x86"]="86",["\x87"]="87",["\x88"]="88",["\x89"]="89",["\x8A"]="0.",["\x8B"]="0E",["\x8C"]="0E-",["\x8D"]="0",["\x8E"]="0-",["\x8F"]="0",
+ ["\x90"]="90",["\x91"]="91",["\x92"]="92",["\x93"]="93",["\x94"]="94",["\x95"]="95",["\x96"]="96",["\x97"]="97",["\x98"]="98",["\x99"]="99",["\x9A"]="0.",["\x9B"]="0E",["\x9C"]="0E-",["\x9D"]="0",["\x9E"]="0-",["\x9F"]="0",
+ ["\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_nibbles=P("\30")*Cs(((1-p_last)/remap)^0+p_last)/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)
+ stack={}
+ strings=data.strings
+ for i=1,#dictionaries do
+ top=0
+ result={
+ 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,
+ }
+ }
+ 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 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 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 moveto(x,y)
+ if keepcurve then
+ r=r+1
+ result[r]={ x,y,"m" }
+ end
+ if checked then
+ 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
+ else
+ xmin=x
+ ymin=y
+ xmax=x
+ ymax=y
+ checked=true
+ end
+ end
+ local function lineto(x,y)
+ if keepcurve then
+ r=r+1
+ result[r]={ x,y,"l" }
+ end
+ if checked then
+ 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
+ else
+ xmin=x
+ ymin=y
+ xmax=x
+ ymax=y
+ checked=true
+ end
+ end
+ local function curveto(x1,y1,x2,y2,x3,y3)
+ if keepcurve then
+ r=r+1
+ result[r]={ x1,y1,x2,y2,x3,y3,"c" }
+ end
+ if checked 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
+ else
+ xmin=x1
+ ymin=y1
+ xmax=x1
+ ymax=y1
+ checked=true
+ 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 x3<xmin then xmin=x3 elseif x3>xmax then xmax=x3 end
+ if y3<ymin then ymin=y3 elseif y3>ymax then ymax=y3 end
+ end
+ local function rmoveto()
+ if top>2 then
+ if not width then
+ width=stack[1]
+ if trace_charstrings then
+ showvalue("width",width)
+ end
+ end
+ elseif not width then
+ width=true
+ end
+ if trace_charstrings then
+ showstate("rmoveto")
+ end
+ x=x+stack[top-1]
+ y=y+stack[top]
+ top=0
+ moveto(x,y)
+ end
+ local function hmoveto()
+ if top>1 then
+ if not width then
+ width=stack[1]
+ if trace_charstrings then
+ showvalue("width",width)
+ end
+ end
+ elseif not width then
+ width=true
+ end
+ if trace_charstrings then
+ showstate("hmoveto")
+ end
+ x=x+stack[top]
+ top=0
+ moveto(x,y)
+ end
+ local function vmoveto()
+ if top>1 then
+ if not width then
+ width=stack[1]
+ if trace_charstrings then
+ showvalue("width",width)
+ end
+ end
+ elseif not width then
+ width=true
+ end
+ if trace_charstrings then
+ showstate("vmoveto")
+ end
+ y=y+stack[top]
+ top=0
+ moveto(x,y)
+ 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]
+ lineto(x,y)
+ end
+ top=0
+ end
+ local function xlineto(swap)
+ for i=1,top do
+ if swap then
+ x=x+stack[i]
+ swap=false
+ else
+ y=y+stack[i]
+ swap=true
+ end
+ lineto(x,y)
+ end
+ top=0
+ end
+ local function hlineto()
+ if trace_charstrings then
+ showstate("hlineto")
+ end
+ xlineto(true)
+ end
+ local function vlineto()
+ if trace_charstrings then
+ showstate("vlineto")
+ end
+ xlineto(false)
+ 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]
+ curveto(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
+ curveto(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]
+ curveto(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
+ local sw=swap
+ 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
+ curveto(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]
+ curveto(ax,ay,bx,by,x,y)
+ end
+ x=x+stack[top-1]
+ y=y+stack[top]
+ lineto(x,y)
+ 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]
+ lineto(x,y)
+ 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]
+ curveto(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]
+ curveto(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]
+ curveto(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
+ curveto(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]
+ curveto(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
+ curveto(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]
+ curveto(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]
+ curveto(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
+ curveto(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+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+top/2
+ top=0
+ if stems==0 then
+ elseif stems<=8 then
+ return 1
+ else
+ return floor((stems+7)/8)
+ end
+ end
+ local function unsupported()
+ if trace_charstrings then
+ showstate("unsupported")
+ end
+ top=0
+ end
+ local actions={ [0]=unsupported,
+ getstem,
+ unsupported,
+ getstem,
+ vmoveto,
+ rlineto,
+ hlineto,
+ vlineto,
+ rrcurveto,
+ unsupported,
+ unsupported,
+ unsupported,
+ unsupported,
+ unsupported,
+ unsupported,
+ unsupported,
+ unsupported,
+ unsupported,
+ getstem,
+ getmask,
+ getmask,
+ rmoveto,
+ hmoveto,
+ getstem,
+ rcurveline,
+ rlinecurve,
+ vvcurveto,
+ hhcurveto,
+ unsupported,
+ unsupported,
+ vhcurveto,
+ hvcurveto,
+ }
+ local subactions={
+ [034]=hflex,
+ [035]=flex,
+ [036]=hflex1,
+ [037]=flex1,
+ }
+ local p_bytes=Ct((P(1)/byte)^0)
+ local function call(scope,list,bias,process)
+ local index=stack[top]+bias
+ top=top-1
+ if trace_charstrings then
+ showvalue(scope,index,true)
+ end
+ local str=list[index]
+ if str then
+ if type(str)=="string" then
+ str=lpegmatch(p_bytes,str)
+ list[index]=str
+ end
+ depth=depth+1
+ process(str)
+ depth=depth-1
+ else
+ report("unknown %s %i",scope,index)
+ end
+ end
+ local function process(tab)
+ local i=1
+ local n=#tab
+ while i<=n do
+ local t=tab[i]
+ if t>=32 and t<=246 then
+ top=top+1
+ stack[top]=t-139
+ i=i+1
+ elseif t>=247 and t<=250 then
+ top=top+1
+ stack[top]=(t-247)*256+tab[i+1]+108
+ i=i+2
+ elseif t>=251 and t<=254 then
+ top=top+1
+ stack[top]=-(t-251)*256-tab[i+1]-108
+ i=i+2
+ elseif t==28 then
+ top=top+1
+ local n=0x100*tab[i+1]+tab[i+2]
+ if n>=0x8000 then
+ stack[top]=n-0xFFFF-1
+ else
+ stack[top]=n
+ end
+ i=i+3
+ elseif t==255 then
+ local n=0x100*tab[i+1]+tab[i+2]
+ top=top+1
+ if n>=0x8000 then
+ stack[top]=n-0xFFFF-1+(0x100*tab[i+3]+tab[i+4])/0xFFFF
+ else
+ stack[top]=n+(0x100*tab[i+3]+tab[i+4])/0xFFFF
+ end
+ i=i+5
+ elseif t==11 then
+ if trace_charstrings then
+ showstate("return")
+ end
+ return
+ elseif t==10 then
+ call("local",locals,localbias,process)
+ 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,process)
+ i=i+1
+ elseif t==12 then
+ i=i+1
+ local t=tab[i]
+ local a=subactions[t]
+ if a then
+ a()
+ else
+ if trace_charstrings then
+ showvalue("<subaction>",t)
+ end
+ top=0
+ end
+ i=i+1
+ else
+ local a=actions[t]
+ if a then
+ local s=a()
+ if s then
+ i=i+s
+ end
+ else
+ if trace_charstrings then
+ showvalue("<action>",t)
+ end
+ top=0
+ end
+ i=i+1
+ end
+ end
+ end
+ parsecharstrings=function(data,glyphs,doshapes)
+ local dictionary=data.dictionaries[1]
+ local charstrings=dictionary.charstrings
+ local charset=dictionary.charset
+ keepcurve=doshapes
+ stack={}
+ glyphs=glyphs or {}
+ strings=data.strings
+ locals=dictionary.subroutines
+ globals=data.routines
+ globalbias=#globals
+ localbias=#locals
+ globalbias=((globalbias<1240 and 107) or (globalbias<33900 and 1131) or 32768)+1
+ localbias=((localbias<1240 and 107) or (localbias<33900 and 1131) or 32768)+1
+ local nominalwidth=dictionary.private.data.nominalwidthx or 0
+ local defaultwidth=dictionary.private.data.defaultwidthx or 0
+ for i=1,#charstrings do
+ local str=charstrings[i]
+ local tab=lpegmatch(p_bytes,str)
+ local index=i-1
+ 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
+ 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 not glyph then
+ glyphs[index]={
+ segments=doshapes~=false and result or nil,
+ boundingbox=boundingbox,
+ width=width,
+ name=charset[index],
+ }
+ else
+ glyph.segments=doshapes~=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
+ end
+ if trace_charstrings then
+ report("width: %s",tostring(width))
+ report("boundingbox: % t",boundingbox)
+ end
+ charstrings[i]=nil
+ end
+ return glyphs
+ end
+ parsecharstring=function(data,dictionary,charstring,glyphs,index,doshapes)
+ local private=dictionary.private
+ keepcurve=doshapes
+ strings=data.strings
+ locals=dictionary.subroutines or {}
+ globals=data.routines or {}
+ globalbias=#globals
+ localbias=#locals
+ globalbias=((globalbias<1240 and 107) or (globalbias<33900 and 1131) or 32768)+1
+ localbias=((localbias<1240 and 107) or (localbias<33900 and 1131) or 32768)+1
+ local nominalwidth=private and private.data.nominalwidthx or 0
+ local defaultwidth=private and private.data.defaultwidthx or 0
+ local tab=lpegmatch(p_bytes,charstring)
+ 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
+ process(tab)
+ local boundingbox={ xmin,ymin,xmax,ymax }
+ if width==true or width==false then
+ width=defaultwidth
+ else
+ width=nominalwidth+width
+ end
+index=index-1
+ local glyph=glyphs[index]
+ if not glyph then
+ glyphs[index]={
+ segments=doshapes~=false and result or nil,
+ boundingbox=boundingbox,
+ width=width,
+ name=charset[index],
+ }
+ else
+ glyph.segments=doshapes~=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
+ end
+ if trace_charstrings then
+ report("width: %s",tostring(width))
+ report("boundingbox: % t",boundingbox)
+ end
+ return charstring
+ end
+ resetcharstrings=function()
+ result={}
+ top=0
+ stack={}
+ end
+end
+local function readglobals(f,data)
+ local routines=readlengths(f)
+ for i=1,#routines do
+ routines[i]=readstring(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~=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
+ 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]=readstring(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)
+ local header=data.header
+ local dictionaries=data.dictionaries
+ local dictionary=dictionaries[1]
+ local type=dictionary.charstringtype
+ local offset=dictionary.charstrings
+ if type==2 then
+ setposition(f,header.offset+offset)
+ local charstrings=readlengths(f)
+ 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",type)
+ 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
+local function readnoselect(f,data,glyphs,doshapes)
+ local dictionaries=data.dictionaries
+ local dictionary=dictionaries[1]
+ readglobals(f,data)
+ readcharstrings(f,data)
+ readencodings(f,data)
+ readcharsets(f,data,dictionary)
+ readprivates(f,data)
+ parseprivates(data,data.dictionaries)
+ readlocals(f,data,dictionary)
+ parsecharstrings(data,glyphs,doshapes)
+ resetcharstrings()
+end
+local function readfdselect(f,data,glyphs,doshapes)
+ 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)
+ readencodings(f,data)
+ 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(i)
+ 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
+ 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
+ for i=1,#charstrings do
+ parsecharstring(data,dictionaries[fdindex[i]+1],charstrings[i],glyphs,i,doshapes)
+ end
+ resetcharstrings()
+ end
+end
+function readers.cff(f,fontdata,specification)
+ if specification.details then
+ local datatable=fontdata.tables.cff
+ if datatable then
+ local offset=datatable.offset
+ local glyphs=fontdata.glyphs
+ if not f then
+ report("invalid filehandle")
+ return
+ end
+ if offset then
+ setposition(f,offset)
+ end
+ local header=readheader(f)
+ if header.major>1 then
+ report("version mismatch")
+ return
+ end
+ 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,data.dictionaries)
+ local d=dictionaries[1]
+ local c=d.cid
+ fontdata.cffinfo={
+ familynamename=d.familyname,
+ fullname=d.fullname,
+ boundingbox=d.boundingbox,
+ weight=d.weight,
+ italicangle=d.italicangle,
+ underlineposition=d.underlineposition,
+ underlinethickness=d.underlinethickness,
+ monospaced=d.monospaced,
+ }
+ fontdata.cidinfo=c and {
+ registry=c.registry,
+ ordering=c.ordering,
+ supplement=c.supplement,
+ }
+ if not specification.glyphs then
+ else
+ local cid=d.cid
+ if cid and cid.fdselect then
+ readfdselect(f,data,glyphs,specification.shapes or false)
+ else
+ readnoselect(f,data,glyphs,specification.shapes or false)
+ end
+ end
+ end
+ end
+end
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “font-cff”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-ttf” e0893de6d0f3f421ee4386fa90429db8] ---
+
+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 bittest=bit32.btest
+local sqrt=math.sqrt
+local report=logs.reporter("otf reader","ttf")
+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 function mergecomposites(glyphs,shapes)
+ local function merge(index,shape,components)
+ local contours={}
+ local nofcontours=0
+ for i=1,#components do
+ local component=components[i]
+ local subindex=component.index
+ local subshape=shapes[subindex]
+ local subcontours=subshape.contours
+ if not subcontours then
+ local subcomponents=subshape.components
+ if subcomponents then
+ subcontours=merge(subindex,subshape,subcomponents)
+ end
+ end
+ if subcontours 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]
+ for i=1,#subcontours do
+ local points=subcontours[i]
+ local result={}
+ for i=1,#points do
+ local p=points[i]
+ local x=p[1]
+ local y=p[2]
+ result[i]={
+ xscale*x+xrotate*y+xoffset,
+ yscale*y+yrotate*x+yoffset,
+ p[3]
+ }
+ end
+ nofcontours=nofcontours+1
+ contours[nofcontours]=result
+ end
+ else
+ report("missing contours composite %s, component %s of %s, glyph %s",index,i,#components,subindex)
+ end
+ end
+ shape.contours=contours
+ shape.components=nil
+ return contours
+ end
+ for index=1,#glyphs do
+ local shape=shapes[index]
+ local components=shape.components
+ if components then
+ merge(index,shape,components)
+ end
+ end
+end
+local function readnothing(f,nofcontours)
+ 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 contours2outlines(glyphs,shapes)
+ local quadratic=true
+ for index=1,#glyphs do
+ local glyph=glyphs[index]
+ local shape=shapes[index]
+ local contours=shape.contours
+ if contours then
+ local nofcontours=#contours
+ local segments={}
+ local nofsegments=0
+ glyph.segments=segments
+ if nofcontours>0 then
+ for i=1,nofcontours do
+ local contour=contours[i]
+ local nofcontour=#contour
+ if nofcontour>0 then
+ local first_pt=contour[1]
+ local first_on=first_pt[3]
+ if nofcontour==1 then
+ first_pt[3]="m"
+ nofsegments=nofsegments+1
+ segments[nofsegments]=first_pt
+ else
+ local first_on=first_pt[3]
+ local last_pt=contour[nofcontour]
+ 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
+ nofsegments=nofsegments+1
+ segments[nofsegments]={ first_pt[1],first_pt[2],"m" }
+ local previous_pt=first_pt
+ for i=start,nofcontour do
+ local current_pt=contour[i]
+ local current_on=current_pt[3]
+ local previous_on=previous_pt[3]
+ if previous_on then
+ if current_on then
+ nofsegments=nofsegments+1
+ segments[nofsegments]={ current_pt[1],current_pt[2],"l" }
+ else
+ control_pt=current_pt
+ end
+ elseif current_on then
+ local ps=segments[nofsegments]
+ nofsegments=nofsegments+1
+ if quadratic then
+ segments[nofsegments]={ control_pt[1],control_pt[2],current_pt[1],current_pt[2],"q" }
+ else
+ local p=segments[nofsegments-1] local n=#p
+ segments[nofsegments]=curveto(control_pt[1],control_pt[2],p[n-2],p[n-1],current_pt[1],current_pt[2])
+ end
+ control_pt=false
+ else
+ nofsegments=nofsegments+1
+ local halfway_x=(previous_pt[1]+current_pt[1])/2
+ local halfway_y=(previous_pt[2]+current_pt[2])/2
+ if quadratic then
+ segments[nofsegments]={ control_pt[1],control_pt[2],halfway_x,halfway_y,"q" }
+ else
+ local p=segments[nofsegments-1] local n=#p
+ segments[nofsegments]=curveto(control_pt[1],control_pt[2],p[n-2],p[n-1],halfway_x,halfway_y)
+ end
+ control_pt=current_pt
+ end
+ previous_pt=current_pt
+ end
+ if first_pt==last_pt then
+ else
+ nofsegments=nofsegments+1
+ if not control_pt then
+ segments[nofsegments]={ first_pt[1],first_pt[2],"l" }
+ elseif quadratic then
+ segments[nofsegments]={ control_pt[1],control_pt[2],first_pt[1],first_pt[2],"q" }
+ else
+ local p=last_pt local n=#p
+ segments[nofsegments]=curveto(control_pt[1],control_pt[2],p[n-2],p[n-1],first_pt[1],first_pt[2])
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+end
+local function readglyph(f,nofcontours)
+ local points={}
+ local endpoints={}
+ local instructions={}
+ local flags={}
+ for i=1,nofcontours do
+ endpoints[i]=readshort(f)+1
+ end
+ local nofpoints=endpoints[nofcontours]
+ local nofinstructions=readushort(f)
+ skipbytes(f,nofinstructions)
+ local i=1
+ while i<=nofpoints do
+ local flag=readbyte(f)
+ flags[i]=flag
+ if bittest(flag,0x0008) then
+ for j=1,readbyte(f) do
+ i=i+1
+ flags[i]=flag
+ end
+ end
+ i=i+1
+ end
+ local x=0
+ for i=1,nofpoints do
+ local flag=flags[i]
+ local short=bittest(flag,0x0002)
+ local same=bittest(flag,0x0010)
+ if short then
+ if same then
+ x=x+readbyte(f)
+ else
+ x=x-readbyte(f)
+ end
+ elseif same then
+ else
+ x=x+readshort(f)
+ end
+ points[i]={ x,y,bittest(flag,0x0001) }
+ end
+ local y=0
+ for i=1,nofpoints do
+ local flag=flags[i]
+ local short=bittest(flag,0x0004)
+ local same=bittest(flag,0x0020)
+ if short then
+ if same then
+ y=y+readbyte(f)
+ else
+ y=y-readbyte(f)
+ end
+ elseif same then
+ else
+ y=y+readshort(f)
+ end
+ points[i][2]=y
+ end
+ local first=1
+ for i=1,#endpoints do
+ local last=endpoints[i]
+ endpoints[i]={ unpack(points,first,last) }
+ first=last+1
+ end
+ return {
+ type="glyph",
+ contours=endpoints,
+ }
+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=bittest(flags,0x0002)
+ local f_offset=bittest(flags,0x0800)
+ 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 bittest(flags,0x0001) then
+ xoffset=readshort(f)
+ yoffset=readshort(f)
+ else
+ xoffset=readchar(f)
+ yoffset=readchar(f)
+ end
+ else
+ if bittest(flags,0x0001) then
+ base=readshort(f)
+ reference=readshort(f)
+ else
+ base=readchar(f)
+ reference=readchar(f)
+ end
+ end
+ if bittest(flags,0x0008) then
+ xscale=read2dot14(f)
+ yscale=xscale
+ if f_xyarg and f_offset then
+ xoffset=xoffset*xscale
+ yoffset=yoffset*yscale
+ end
+ elseif bittest(flags,0x0040) then
+ xscale=read2dot14(f)
+ yscale=read2dot14(f)
+ if f_xyarg and f_offset then
+ xoffset=xoffset*xscale
+ yoffset=yoffset*yscale
+ end
+ elseif bittest(flags,0x0080) 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=bittest(flags,0x0200),
+ round=bittest(flags,0x0006),
+ base=base,
+ reference=reference,
+ matrix={ xscale,xrotate,yrotate,yscale,xoffset,yoffset },
+ }
+ if bittest(flags,0x0100) then
+ instructions=true
+ end
+ if not bittest(flags,0x0020) 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 locations={}
+ setposition(f,datatable.offset)
+ if format==1 then
+ local nofglyphs=datatable.length/4-1
+ -1
+ for i=0,nofglyphs do
+ locations[i]=offset+readulong(f)
+ end
+ fontdata.nofglyphs=nofglyphs
+ else
+ local nofglyphs=datatable.length/2-1
+ -1
+ for i=0,nofglyphs do
+ locations[i]=offset+readushort(f)*2
+ end
+ fontdata.nofglyphs=nofglyphs
+ end
+ fontdata.locations=locations
+ end
+ end
+end
+function readers.glyf(f,fontdata,specification)
+ if specification.glyphs then
+ local datatable=fontdata.tables.glyf
+ if datatable 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
+ for index=0,nofglyphs do
+ local location=locations[index]
+ 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 location>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,nofcontours)
+ elseif nofcontours>0 then
+ shapes[index]=readglyph(f,nofcontours)
+ else
+ shapes[index]=readcomposite(f,nofcontours)
+ end
+ else
+ if loadshapes then
+ shapes[index]={}
+ end
+ glyphs[index].boundingbox=nothing
+ end
+ end
+ if loadshapes then
+ mergecomposites(glyphs,shapes)
+ contours2outlines(glyphs,shapes)
+ end
+ end
+ end
+ end
+end
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “font-ttf”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-dsp” 23fc5d3b90aa727181550de11e439ad0] ---
+
+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=next,type
+local bittest=bit32.btest
+local rshift=bit32.rshift
+local concat=table.concat
+local lower=string.lower
+local sub=string.sub
+local strip=string.strip
+local tohash=table.tohash
+local reversed=table.reversed
+local setmetatableindex=table.setmetatableindex
+local formatters=string.formatters
+local sortedkeys=table.sortedkeys
+local sortedhash=table.sortedhash
+local report=logs.reporter("otf reader")
+local readers=fonts.handlers.otf.readers
+local streamreader=readers.streamreader
+local setposition=streamreader.setposition
+local skipbytes=streamreader.skip
+local skipshort=streamreader.skipshort
+local readushort=streamreader.readcardinal2
+local readulong=streamreader.readcardinal4
+local readshort=streamreader.readinteger2
+local readfword=readshort
+local readstring=streamreader.readstring
+local readtag=streamreader.readtag
+local gsubhandlers={}
+local gposhandlers={}
+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 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={
+ bittest(k,0x0008) and true or false,
+ bittest(k,0x0004) and true or false,
+ bittest(k,0x0002) and true or false,
+ bittest(k,0x0001) and true or false,
+ }
+ t[k]=v
+ return v
+end)
+local function readcoverage(f,offset,simple)
+ setposition(f,offset)
+ local coverageformat=readushort(f)
+ local coverage={}
+ if coverageformat==1 then
+ local nofcoverage=readushort(f)
+ if simple then
+ for i=1,nofcoverage do
+ coverage[i]=readushort(f)
+ end
+ else
+ for i=0,nofcoverage-1 do
+ coverage[readushort(f)]=i
+ end
+ end
+ elseif coverageformat==2 then
+ local nofranges=readushort(f)
+ 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
+ else
+ report("unknown coverage format %a ",coverageformat)
+ end
+ return coverage
+end
+local function readclassdef(f,offset)
+ setposition(f,offset)
+ local classdefformat=readushort(f)
+ local classdef={}
+ 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
+ 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 function readposition(f,format)
+ if format==0 then
+ return nil
+ end
+ local x=bittest(format,0x0001) and readshort(f) or 0
+ local y=bittest(format,0x0002) and readshort(f) or 0
+ local h=bittest(format,0x0004) and readshort(f) or 0
+ local v=bittest(format,0x0008) and readshort(f) or 0
+ if x==0 and y==0 and h==0 and v==0 then
+ return nil
+ else
+ return { x,y,h,v }
+ end
+end
+local function readanchor(f,offset)
+ if not offset or offset==0 then
+ return nil
+ end
+ setposition(f,offset)
+ local format=readshort(f)
+ if format==0 then
+ report("invalid anchor format %i @ position %i",format,offset)
+ return false
+ elseif format>3 then
+ report("unsupported anchor format %i @ position %i",format,offset)
+ return false
+ end
+ return { readshort(f),readshort(f) }
+end
+local function readfirst(f,offset)
+ if offset then
+ setposition(f,offset)
+ end
+ return { readushort(f) }
+end
+local function readarray(f,offset,first)
+ if offset then
+ setposition(f,offset)
+ end
+ local n=readushort(f)
+ if first then
+ local t={ first }
+ for i=2,n do
+ t[i]=readushort(f)
+ end
+ return t,n
+ elseif n>0 then
+ local t={}
+ for i=1,n do
+ t[i]=readushort(f)
+ end
+ return t,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 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={}
+ for i=1,noflookups do
+ lookups[readushort(f)+1]=readushort(f)+1
+ end
+ 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)
+ 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={}
+ for i=1,noflookups do
+ lookups[readushort(f)+1]=readushort(f)+1
+ end
+ 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 current=readarray(f)
+ local noflookups=readushort(f)
+ local lookups={}
+ for i=1,noflookups do
+ lookups[readushort(f)+1]=readushort(f)+1
+ end
+ 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={}
+ for i=1,noflookups do
+ lookups[readushort(f)+1]=readushort(f)+1
+ end
+ 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)
+ local currentclassdef=readclassdef(f,tableoffset+currentclassdef)
+ local afterclassdef=readclassdef(f,tableoffset+afterclassdef)
+ 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={}
+ for i=1,noflookups do
+ lookups[readushort(f)+1]=readushort(f)+1
+ end
+ 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={}
+ for i=1,noflookups do
+ lookups[readushort(f)+1]=readushort(f)+1
+ end
+ 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
+ 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={}
+ for i=1,nofreplacements do
+ replacements[i]=readushort(f)
+ 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)","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={}
+ for i=1,nofsequence do
+ sequences[i]=readushort(f)
+ end
+ for i=1,nofsequence do
+ setposition(f,tableoffset+sequences[i])
+ local n=readushort(f)
+ local s={}
+ for i=1,n do
+ s[i]=readushort(f)
+ end
+ sequences[i]=s
+ 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={}
+ for i=1,nofsets do
+ ligatures[i]=readushort(f)
+ end
+ for i=1,nofsets do
+ local offset=lookupoffset+offset+ligatures[i]
+ setposition(f,offset)
+ local n=readushort(f)
+ local l={}
+ for i=1,n do
+ l[i]=offset+readushort(f)
+ end
+ ligatures[i]=l
+ 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 {
+ coverage={
+ format="reversecoverage",
+ 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)
+ local done={}
+ for i=1,#sets do
+ local offset=sets[i]
+ local reused=done[offset]
+ if not reused then
+ setposition(f,tableoffset+offset)
+ local n=readushort(f)
+ reused={}
+ for i=1,n do
+ reused[i]={
+ readushort(f),
+ readposition(f,format1),
+ readposition(f,format2)
+ }
+ end
+ done[offset]=reused
+ end
+ sets[i]=reused
+ end
+ return sets
+end
+local function readpairclasssets(f,nofclasses1,nofclasses2,format1,format2)
+ local classlist1={}
+ for i=1,nofclasses1 do
+ local classlist2={}
+ classlist1[i]=classlist2
+ for j=1,nofclasses2 do
+ local one=readposition(f,format1)
+ local two=readposition(f,format2)
+ 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)
+ if subtype==1 then
+ local coverage=readushort(f)
+ local format=readushort(f)
+ local value=readposition(f,format)
+ local coverage=readcoverage(f,tableoffset+coverage)
+ for index,newindex in next,coverage do
+ coverage[index]=value
+ end
+ return {
+ format="pair",
+ coverage=coverage
+ }
+ elseif subtype==2 then
+ local coverage=readushort(f)
+ local format=readushort(f)
+ local values={}
+ local nofvalues=readushort(f)
+ for i=1,nofvalues do
+ values[i]=readposition(f,format)
+ end
+ local coverage=readcoverage(f,tableoffset+coverage)
+ for index,newindex in next,coverage do
+ coverage[index]=values[newindex+1]
+ end
+ return {
+ format="pair",
+ 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)
+ 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)
+ coverage=readcoverage(f,tableoffset+coverage)
+ 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 first=value[2]
+ local second=value[3]
+ if first or second then
+ hash[other]={ first,second }
+ else
+ hash[other]=nil
+ end
+ end
+ end
+ coverage[index]=hash
+ end
+ return {
+ 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)
+ coverage=readcoverage(f,tableoffset+coverage)
+ classdef1=readclassdef(f,tableoffset+classdef1)
+ classdef2=readclassdef(f,tableoffset+classdef2)
+ local usedcoverage={}
+ 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
+ hash[paired]={ first,second }
+ else
+ end
+ end
+ end
+ usedcoverage[g1]=hash
+ end
+ end
+ end
+ return {
+ 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)
+ 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=entry~=0 and (tableoffset+entry) or false,
+ exit=exit~=0 and (tableoffset+exit ) or false,
+ }
+ end
+ coverage=readcoverage(f,coverage)
+ for i=1,nofrecords do
+ local r=records[i]
+ records[i]={
+ 1,
+ readanchor(f,r.entry) or nil,
+ readanchor(f,r.exit ) 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)
+ 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])
+ 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]
+ local b=basecoverage[i]
+ if components then
+ for c=1,#components do
+ local classes=components[c]
+ if classes then
+ for i=1,nofclasses do
+ local anchor=readanchor(f,classes[i])
+ local bclass=baseclasses[i]
+ local bentry=bclass[b]
+ if bentry then
+ bentry[c]=anchor
+ else
+ bclass[b]={ [c]=anchor }
+ end
+ end
+ end
+ components[i]=classes
+ 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])
+ 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,parameters)
+ if not fontdata.designsize then
+ setposition(f,tableoffset+parameters)
+ local designsize=readushort(f)
+ if designsize>0 then
+ fontdata.designsize=designsize
+ skipshort(f,2)
+ fontdata.minsize=readushort(f)
+ fontdata.maxsize=readushort(f)
+ 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={}
+ feature.lookups=lookups
+ for j=1,noflookups do
+ lookups[j]=readushort(f)+1
+ end
+ end
+ if parameters>0 then
+ feature.parameters=parameters
+ local plugin=plugins[feature.tag]
+ if plugin then
+ plugin(f,fontdata,offset,parameters)
+ end
+ end
+ end
+ return features
+ end
+ local function readlookups(f,lookupoffset,lookuptypes,featurehash,featureorder)
+ setposition(f,lookupoffset)
+ local lookups={}
+ local noflookups=readushort(f)
+ for i=1,noflookups do
+ lookups[i]=readushort(f)
+ end
+ for lookupid=1,noflookups do
+ local index=lookups[lookupid]
+ setposition(f,lookupoffset+index)
+ 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
+ local offset=readushort(f)
+ subtables[j]=offset+index
+ end
+ local markclass=bittest(flagbits,0x0010)
+ 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 function readscriptoffsets(f,fontdata,tableoffset)
+ if not tableoffset then
+ return
+ end
+ setposition(f,tableoffset)
+ local version=readulong(f)
+ if version~=0x00010000 then
+ report("table version %a of %a is not supported (yet), maybe font %s is bad",version,what,fontdata.filename)
+ return
+ end
+ return tableoffset+readushort(f),tableoffset+readushort(f),tableoffset+readushort(f)
+ end
+ local f_lookupname=formatters["%s_%s_%s"]
+ local function resolvelookups(f,lookupoffset,fontdata,lookups,lookuptypes,lookuphandlers,what)
+ 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)
+ 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
+ if before then
+ for i=1,#before do
+ before[i]=tohash(before[i])
+ end
+ rule.before=reversed(before)
+ end
+ if current then
+ for i=1,#current do
+ current[i]=tohash(current[i])
+ end
+ end
+ if after then
+ for i=1,#after do
+ after[i]=tohash(after[i])
+ 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
+ local reported={}
+ 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
+ local name=sequence.name
+ if not reported[name] then
+ report("rule %i in %s lookup %a has %s lookups",i,what,name,"no")
+ reported[name]=true
+ end
+ elseif not next(rlookups) then
+ local name=sequence.name
+ if not reported[name] then
+ report("rule %i in %s lookup %a has %s lookups",i,what,name,"empty")
+ reported[name]=true
+ end
+ rule.lookups=nil
+ else
+ for index,lookupid in sortedhash(rlookups) do
+ local h=sublookuphash[lookupid]
+ if not h then
+ nofsublookups=nofsublookups+1
+ local d=lookups[lookupid].done
+ h={
+ index=nofsublookups,
+ name=f_lookupname(lookupprefix,"d",lookupid+lookupidoffset),
+ derived=true,
+ steps=d.steps,
+ nofsteps=d.nofsteps,
+ type=d.lookuptype,
+ markclass=d.markclass or nil,
+ flags=d.flags,
+ }
+ sublookuplist[nofsublookups]=h
+ sublookuphash[lookupid]=nofsublookups
+ sublookupcheck[lookupid]=1
+ else
+ sublookupcheck[lookupid]=sublookupcheck[lookupid]+1
+ end
+ rlookups[index]=h
+ 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 readscripts(f,fontdata,what,lookuptypes,lookuphandlers,lookupstoo)
+ local datatable=fontdata.tables[what]
+ if not datatable then
+ return
+ end
+ local tableoffset=datatable.offset
+ if not tableoffset then
+ return
+ end
+ local scriptoffset,featureoffset,lookupoffset=readscriptoffsets(f,fontdata,tableoffset)
+ 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)
+ 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
+ report("adding global kern table as gpos feature %a",name)
+ setposition(f,datatable.offset)
+ local version=readushort(f)
+ local noftables=readushort(f)
+ local kerns=setmetatableindex("table")
+ for i=1,noftables do
+ local version=readushort(f)
+ local length=readushort(f)
+ local coverage=readushort(f)
+ local format=bit32.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 },
+ }
+ 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 specification.glyphs then
+ local datatable=fontdata.tables.gdef
+ if datatable then
+ local tableoffset=datatable.offset
+ setposition(f,tableoffset)
+ local version=readulong(f)
+ local classoffset=tableoffset+readushort(f)
+ local attachmentoffset=tableoffset+readushort(f)
+ local ligaturecarets=tableoffset+readushort(f)
+ local markclassoffset=tableoffset+readushort(f)
+ local marksetsoffset=version==0x00010002 and (tableoffset+readushort(f))
+ local glyphs=fontdata.glyphs
+ local marks={}
+ local markclasses=setmetatableindex("table")
+ local marksets=setmetatableindex("table")
+ fontdata.marks=marks
+ fontdata.markclasses=markclasses
+ fontdata.marksets=marksets
+ setposition(f,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
+ setposition(f,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
+ if marksetsoffset then
+ setposition(f,marksetsoffset)
+ local format=readushort(f)
+ if format==1 then
+ local nofsets=readushort(f)
+ local sets={}
+ for i=1,nofsets do
+ sets[i]=readulong(f)
+ end
+ for i=1,nofsets do
+ local offset=sets[i]
+ if offset~=0 then
+ marksets[i]=readcoverage(f,marksetsoffset+offset)
+ end
+ end
+ 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 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 not math then
+ glyph.math={ kerns=kernset }
+ else
+ 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={}
+ local hconstruction={}
+ for i=1,vnofglyphs do
+ vconstruction[i]=readushort(f)
+ end
+ for i=1,hnofglyphs do
+ hconstruction[i]=readushort(f)
+ end
+ 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 bittest(flags,0x0001) 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)
+ if specification.glyphs then
+ local datatable=fontdata.tables.math
+ if datatable then
+ local tableoffset=datatable.offset
+ setposition(f,tableoffset)
+ local version=readulong(f)
+ if version~=0x00010000 then
+ report("table version %a of %a is not supported (yet), maybe font %s is bad",version,what,fontdata.filename)
+ return
+ end
+ 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
+end
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “font-dsp”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-oup” ec470035520e747739bc248df03cfbf3] ---
+
+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 report=logs.reporter("otf reader")
+local trace_markwidth=false trackers.register("otf.markwidth",function(v) trace_markwidth=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 doduplicates=true
+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 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
+ else
+ report("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=doduplicates 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
+ t[indices[k]]=v
+ end
+ cover[i]=t
+ done[c]=d
+ end
+ end
+ end
+ local function recursed(c)
+ local t={}
+ for g,d in next,c do
+ if type(d)=="table" then
+ t[indices[g]]=recursed(d)
+ 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]
+ local ud1=indices[d1]
+ t1[ug1]=ud1
+ local dg1=duplicates[ug1]
+ if dg1 then
+ for u in next,dg1 do
+ t1[u]=ud1
+ end
+ end
+ end
+ else
+ for g1,d1 in next,c do
+ t1[indices[g1]]=indices[d1]
+ 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 t2=done[d1]
+ if not t2 then
+ t2={}
+ for g2,d2 in next,d1 do
+ t2[indices[g2]]=d2
+ end
+ done[d1]=t2
+ end
+ t1[indices[g1]]=t2
+ 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)
+ 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
+ d1[i]=indices[d1[i]]
+ end
+ local ug1=indices[g1]
+ t1[ug1]=d1
+ local dg1=duplicates[ug1]
+ if dg1 then
+ for u in next,dg1 do
+ t1[u]=copy(d1)
+ end
+ end
+ end
+ else
+ for g1,d1 in next,c do
+ for i=1,#d1 do
+ d1[i]=indices[d1[i]]
+ end
+ t1[indices[g1]]=d1
+ 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
+ t1[indices[g1]]=d1
+ 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
+ t2[indices[g2]]=d2
+ end
+ done[d1]=t2
+ end
+ c[g1]=t2
+ end
+ done[c]=c
+ end
+ 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]
+ t1[ug1]=d1
+ local dg1=duplicates[ug1]
+ if dg1 then
+ for u in next,dg1 do
+ t1[u]=d1
+ end
+ end
+ end
+ else
+ for g1,d1 in next,c do
+ t1[indices[g1]]=d1
+ end
+ end
+ done[c]=t1
+ end
+ step.coverage=t1
+ 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]
+ t1[ug1]=d1
+ local dg1=duplicates[ug1]
+ if dg1 then
+ for u in next,dg1 do
+ t1[u]=copy(d1)
+ end
+ end
+ end
+ else
+ for g1,d1 in next,c do
+ t1[indices[g1]]=d1
+ 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 doduplicates then
+ local descriptions=fontdata.descriptions
+ local resources=fontdata.resources
+ local duplicates=resources.duplicates
+ 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),"->" }
+ for u in next,d do
+ if descriptions[u] then
+ t[#t+1]=f_character_n(u)
+ else
+ local c=copy(du)
+ descriptions[u]=c
+ t[#t+1]=f_character_y(u)
+ end
+ end
+ report("duplicates: % t",t)
+ 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
+ report("all done in %s loops",loops)
+ 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
+ report("all done in %s loops",loops)
+ return
+ elseif old==nofmissing then
+ break
+ end
+ end
+ t=nil
+ n=0
+ end
+ if nofmissing>0 then
+ local done={}
+ for i,r in next,missing do
+ if r then
+ local name=descriptions[i].name or f_index(i)
+ if not ignore[name] then
+ done[#done+1]=name
+ end
+ end
+ end
+ if #done>0 then
+ table.sort(done)
+ report("not unicoded: % t",done)
+ end
+ end
+end
+local function unifymissing(fontdata)
+ if not fonts.mappings then
+ require("font-map")
+ require("font-agl")
+ end
+ local unicodes={}
+ local private=fontdata.private
+ 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 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
+ for index=1,#glyphs do
+ local glyph=glyphs[index]
+ local unicode=glyph.unicode
+ if not unicode then
+ unicode=private
+ if names then
+ local name=glyph.name or f_private(unicode)
+ indices[index]=name
+ names[name]=unicode
+ else
+ indices[index]=unicode
+ end
+ private=private+1
+ elseif descriptions[unicode] then
+ report("assigning private unicode %U to glyph indexed %05X (%C)",private,index,unicode)
+ unicode=private
+ if names then
+ local name=glyph.name or f_private(unicode)
+ indices[index]=name
+ names[name]=unicode
+ else
+ indices[index]=unicode
+ end
+ private=private+1
+ else
+ if names then
+ local name=glyph.name or f_unicode(unicode)
+ indices[index]=name
+ names[name]=unicode
+ else
+ indices[index]=unicode
+ end
+ end
+ descriptions[unicode]=glyph
+ 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
+ fontdata.private=private
+ fontdata.glyphs=nil
+ fontdata.names=names
+ fontdata.descriptions=descriptions
+ fontdata.hashmethod=hashmethod
+ return indices,names
+end
+local p_bogusname=(
+ (P("uni")+P("UNI")+P("Uni")+P("U")+P("u"))*S("Xx")^0*R("09","AF")^1+(P("identity")+P("Identity")+P("IDENTITY"))*R("09","AF")^1+(P("index")+P("Index")+P("INDEX"))*R("09")^1
+)*P(-1)
+local function stripredundant(fontdata)
+ local descriptions=fontdata.descriptions
+ if descriptions then
+ local n=0
+ local c=0
+ for unicode,d in next,descriptions do
+ local name=d.name
+ if name and lpegmatch(p_bogusname,name) then
+ d.name=nil
+ n=n+1
+ end
+ if d.class=="base" then
+ d.class=nil
+ c=c+1
+ end
+ end
+ if n>0 then
+ report("%s bogus names removed (verbose unicode)",n)
+ end
+ if c>0 then
+ report("%s base class tags removed (default is base)",c)
+ end
+ end
+end
+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 coverage=steps[i].coverage
+ if coverage then
+ for k,v in next,coverage 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
+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="unicode"
+ 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="unicode"
+ fontdata.names=nil
+ else
+ readers.rehash(fontdata,"unicode")
+ 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_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_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_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_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 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,two,rest=0,0,0
+ 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
+ else
+ return pack_final,pack_final,pack_final,pack_final,pack_final
+ end
+ end
+ local resources=data.resources
+ local sequences=resources.sequences
+ local sublookups=resources.sublookups
+ local features=resources.features
+ 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=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=="kern" then
+ for g1,d1 in next,c do
+ c[g1]=pack_normal(d1)
+ end
+ else
+ for g1,d1 in next,c do
+ for g2,d2 in next,d1 do
+ local f=d2[1] if f then d2[1]=pack_indexed(f) end
+ local s=d2[2] if s 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=="kern" then
+ step.coverage=pack_normal(c)
+ else
+ for g1,d1 in next,c do
+ c[g1]=pack_indexed(d1)
+ end
+ 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 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=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=="kern" then
+ else
+ for g1,d1 in next,c do
+ for g2,d2 in next,d1 do
+ d1[g2]=pack_normal(d2)
+ end
+ 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 not success(2,pass) then
+ 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=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=="kern" then
+ else
+ for g1,d1 in next,c do
+ c[g1]=pack_normal(d1)
+ end
+ 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 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 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=="kern" then
+ for g1,d1 in next,c do
+ local tv=tables[d1]
+ if tv then
+ c[g1]=tv
+ end
+ end
+ else
+ 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
+ end
+ end
+ elseif kind=="gpos_single" then
+ local c=step.coverage
+ if c then
+ if step.format=="kern" then
+ local tv=tables[c]
+ if tv then
+ step.coverage=tv
+ 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_cursive" then
+ local c=step.coverage
+ if c then
+ for g1,d1 in next,c do
+ 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
+ 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[replace]
+ if tv then
+ rule.replacements=tv
+ end
+ end
+ end
+ end
+ end
+ end
+ 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 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
+ 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
+ report("not merging %a steps of %a lookup %a, different formats",nofsteps,lookup.type,lookup.name)
+ return 0
+ end
+ end
+ end
+ report("merging %a steps of %a lookup %a",nofsteps,lookup.type,lookup.name)
+ local target=first.coverage
+ for i=2,nofsteps do
+ for k,v in next,steps[i].coverage do
+ if not target[k] then
+ target[k]=v
+ end
+ end
+ end
+ lookup.nofsteps=1
+ lookup.merged=true
+ lookup.steps={ first }
+ return nofsteps-1
+end
+local function mergesteps_2(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
+ report("not merging %a steps of %a lookup %a, different formats",nofsteps,lookup.type,lookup.name)
+ return 0
+ end
+ end
+ end
+ report("merging %a steps of %a lookup %a",nofsteps,lookup.type,lookup.name)
+ local target=first.coverage
+ for i=2,nofsteps do
+ for k,v in next,steps[i].coverage do
+ local tk=target[k]
+ if tk then
+ for k,v in next,v do
+ if not tk[k] then
+ tk[k]=v
+ end
+ end
+ else
+ target[k]=v
+ end
+ end
+ end
+ lookup.nofsteps=1
+ lookup.steps={ first }
+ return nofsteps-1
+end
+local function mergesteps_3(lookup,strict)
+ local steps=lookup.steps
+ local nofsteps=lookup.nofsteps
+ local first=steps[1]
+ report("merging %a steps of %a lookup %a",nofsteps,lookup.type,lookup.name)
+ local baseclasses={}
+ local coverage={}
+ local used={}
+ 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
+ local tk=coverage[k]
+ if tk then
+ for k,v in next,v do
+ if not tk[k] then
+ tk[k]=v
+ local c=offset+v[1]
+ v[1]=c
+ if not used[c] then
+ used[c]=true
+ end
+ end
+ end
+ else
+ coverage[k]=v
+ local c=offset+v[1]
+ v[1]=c
+ if not used[c] then
+ used[c]=true
+ end
+ end
+ end
+ end
+ for k,v in next,baseclasses do
+ if not used[k] then
+ baseclasses[k]=nil
+ report("discarding not used baseclass %i",k)
+ end
+ end
+ first.baseclasses=baseclasses
+ first.coverage=coverage
+ lookup.nofsteps=1
+ 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]
+ report("merging %a steps of %a lookup %a",nofsteps,lookup.type,lookup.name)
+ local target=first.coverage
+ for i=2,nofsteps do
+ for k,v in next,steps[i].coverage do
+ local tk=target[k]
+ if tk then
+ nested(v,tk)
+ else
+ target[k]=v
+ end
+ end
+ end
+ lookup.nofsteps=1
+ lookup.steps={ first }
+ return nofsteps-1
+end
+local function checkkerns(lookup)
+ local steps=lookup.steps
+ local nofsteps=lookup.nofsteps
+ 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[1]~=0 or d1[2]~=0 or d1[4]~=0 then
+ kerns=false
+ break
+ end
+ end
+ if kerns then
+ report("turning pairs of step %a of %a lookup %a into kerns",i,lookup.type,lookup.name)
+ for g1,d1 in next,coverage do
+ coverage[g1]=d1[3]
+ end
+ step.format="kern"
+ end
+ end
+ end
+end
+local function checkpairs(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
+ for g2,d2 in next,d1 do
+ if d2[2] then
+ kerns=false
+ break
+ else
+ local v=d2[1]
+ if v[1]~=0 or v[2]~=0 or v[4]~=0 then
+ kerns=false
+ break
+ end
+ end
+ end
+ end
+ if kerns then
+ report("turning pairs of step %a of %a lookup %a into kerns",i,lookup.type,lookup.name)
+ for g1,d1 in next,coverage do
+ for g2,d2 in next,d1 do
+ d1[g2]=d2[1][3]
+ end
+ end
+ step.format="kern"
+ kerned=kerned+1
+ end
+ end
+ end
+ return kerned
+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
+ allsteps=allsteps+nofsteps
+ if nofsteps>1 then
+ local kind=lookup.type
+ if kind=="gsub_single" or kind=="gsub_alternate" or kind=="gsub_multiple" then
+ merged=merged+mergesteps_1(lookup)
+ elseif kind=="gsub_ligature" then
+ merged=merged+mergesteps_4(lookup)
+ elseif kind=="gpos_single" then
+ merged=merged+mergesteps_1(lookup,true)
+ checkkerns(lookup)
+ elseif kind=="gpos_pair" then
+ merged=merged+mergesteps_2(lookup,true)
+ kerned=kerned+checkpairs(lookup)
+ elseif kind=="gpos_cursive" then
+ merged=merged+mergesteps_2(lookup)
+ elseif kind=="gpos_mark2mark" or kind=="gpos_mark2base" or kind=="gpos_mark2ligature" then
+ merged=merged+mergesteps_3(lookup)
+ end
+ end
+ end
+ else
+ report("no lookups in %a",what)
+ end
+ end
+ compact("sequences")
+ compact("sublookups")
+ if merged>0 then
+ report("%i steps of %i removed due to merging",merged,allsteps)
+ end
+ if kerned>0 then
+ report("%i steps of %i steps turned from pairs into kerns",kerned,allsteps)
+ end
+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("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 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,sequence.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={}
+ local rulesize=0
+ local coverage={}
+ local lookuptype=sequence.type
+ step.coverage=coverage
+ 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 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
+ if sequence[1] then
+ rulesize=rulesize+1
+ rulehash[rulesize]={
+ nofrules,
+ lookuptype,
+ sequence,
+ start,
+ stop,
+ lookups,
+ replacements,
+ subtype,
+ }
+ for unic in next,sequence[start] do
+ local cu=coverage[unic]
+ if not cu then
+ coverage[unic]=rulehash
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ expandlookups(sequences)
+ expandlookups(sublookups)
+end
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “font-oup”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-otl” 984976af31e61984a4377bee6aad8156] ---
+
+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 gmatch,find,match,lower,strip=string.gmatch,string.find,string.match,string.lower,string.strip
+local type,next,tonumber,tostring,unpack=type,next,tonumber,tostring,unpack
+local abs=math.abs
+local ioflush=io.flush
+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=3.017
+otf.cache=containers.define("fonts","otl",otf.version,true)
+local otfreaders=otf.readers
+local hashes=fonts.hashes
+local definers=fonts.definers
+local readers=fonts.readers
+local constructors=fonts.constructors
+local otffeatures=constructors.newfeatures("otf")
+local registerotffeature=otffeatures.register
+local enhancers=allocate()
+otf.enhancers=enhancers
+local patches={}
+enhancers.patches=patches
+local forceload=false
+local cleanup=0
+local syncspace=true
+local forcenotdef=false
+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)
+local ordered_enhancers={
+ "check extra features",
+}
+local actions=allocate()
+local before=allocate()
+local after=allocate()
+patches.before=before
+patches.after=after
+local function enhance(name,data,filename,raw)
+ local enhancer=actions[name]
+ if enhancer then
+ if trace_loading then
+ report_otf("apply enhancement %a to file %a",name,filename)
+ ioflush()
+ end
+ enhancer(data,filename,raw)
+ else
+ end
+end
+function enhancers.apply(data,filename,raw)
+ local basename=file.basename(lower(filename))
+ if trace_loading then
+ report_otf("%s enhancing file %a","start",filename)
+ end
+ ioflush()
+ for e=1,#ordered_enhancers do
+ local enhancer=ordered_enhancers[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_loading then
+ report_otf("%s enhancing file %a","stop",filename)
+ end
+ ioflush()
+end
+function patches.register(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}
+ end
+ end
+end
+function patches.report(fmt,...)
+ if trace_loading then
+ report_otf("patching: %s",formatters[fmt](...))
+ end
+end
+function enhancers.register(what,action)
+ actions[what]=action
+end
+function otf.load(filename,sub,featurefile)
+ local featurefile=nil
+ 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 featurefile then
+ name=name.."@"..file.removesuffix(file.basename(featurefile))
+ end
+ if sub=="" then
+ sub=false
+ end
+ local hash=name
+ if sub then
+ hash=hash.."-"..sub
+ end
+ hash=containers.cleanname(hash)
+ local featurefiles
+ if featurefile then
+ featurefiles={}
+ for s in gmatch(featurefile,"[^,]+") do
+ local name=resolvers.findfile(file.addsuffix(s,'fea'),'fea') or ""
+ if name=="" then
+ report_otf("loading error, no featurefile %a",s)
+ else
+ local attr=lfs.attributes(name)
+ featurefiles[#featurefiles+1]={
+ name=name,
+ size=attr and attr.size or 0,
+ time=attr and attr.modification or 0,
+ }
+ end
+ end
+ if #featurefiles==0 then
+ featurefiles=nil
+ end
+ end
+ 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)
+ data=otfreaders.loadfont(filename,sub or 1)
+ if data then
+ otfreaders.compact(data)
+ otfreaders.rehash(data,"unicodes")
+ otfreaders.addunicodetable(data)
+ otfreaders.extend(data)
+ 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")
+ end
+ stoptiming(otfreaders)
+ if elapsedtime then
+ report_otf("loading, optimizing, packing and caching time %s",elapsedtime(otfreaders))
+ end
+ if cleanup>3 then
+ collectgarbage("collect")
+ end
+ data=containers.read(otf.cache,hash)
+ if cleanup>2 then
+ collectgarbage("collect")
+ end
+ else
+ 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)
+ enhancers.apply(data,filename,data)
+ constructors.addcoreunicodes(unicodes)
+ if applyruntimefixes then
+ applyruntimefixes(filename,data)
+ end
+ data.metadata.math=data.resources.mathconstants
+ 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 resources=data.resources
+ 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 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 500
+ 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
+ properties.space=spacer
+ properties.encodingbytes=2
+ properties.format=data.format or formats.otf
+ properties.noglyphnames=true
+ properties.filename=filename
+ properties.fontname=fontname
+ properties.fullname=fullname
+ properties.psname=psname
+ properties.name=filename or fullname
+ return {
+ characters=characters,
+ descriptions=descriptions,
+ parameters=parameters,
+ mathparameters=mathparameters,
+ resources=resources,
+ properties=properties,
+ goodies=goodies,
+ }
+ end
+end
+local function otftotfm(specification)
+ local cache_id=specification.hash
+ local tfmdata=containers.read(constructors.cache,cache_id)
+ if not tfmdata then
+ local name=specification.name
+ local sub=specification.sub
+ local subindex=specification.subindex
+ local filename=specification.filename
+ local features=specification.features.normal
+ local rawdata=otf.load(filename,sub,features and features.featurefile)
+ 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
+ local choice=tonumber(value) or 1
+ 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)
+ 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 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,
+ 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 --- [luaotfload, fontloader-2016-04-21.lua scope for “font-otl”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-oto” acff5cbf6b4a1831bb0f567e6b012949] ---
+
+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 lpegmatch=lpeg.match
+local utfchar=utf.char
+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 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,nam,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_alternate(feature,sequence,descriptions,unicode,replacement,value,comment)
+ report_prepare("%s: base alternate %s => %s (%S => %S)",
+ cref(feature,sequence),
+ gref(descriptions,unicode),
+ replacement and gref(descriptions,replacement),
+ value,
+ comment)
+end
+local function report_substitution(feature,sequence,descriptions,unicode,substitution)
+ report_prepare("%s: base substitution %s => %S",
+ cref(feature,sequence),
+ gref(descriptions,unicode),
+ gref(descriptions,substitution))
+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.."-"..base
+ applied={}
+end
+local function registerbasefeature(feature,value)
+ applied[#applied+1]=feature.."="..tostring(value)
+end
+local function makefake(tfmdata,name,present)
+ local resources=tfmdata.resources
+ local private=resources.private
+ local character={ intermediate=true,ligatures={} }
+ resources.unicodes[name]=private
+ tfmdata.characters[private]=character
+ tfmdata.descriptions[private]={ name=name }
+ resources.private=private+1
+ 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
+ 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 not changed[unicode] then
+ if trace_singles then
+ report_substitution(feature,sequence,descriptions,unicode,data)
+ end
+ changed[unicode]=data
+ end
+ end
+ end
+ elseif kind=="gsub_alternate" then
+ for i=1,#steps do
+ for unicode,data in next,steps[i].coverage do
+ if not changed[unicode] then
+ local replacement=data[alternate]
+ if replacement then
+ changed[unicode]=replacement
+ if trace_alternatives then
+ report_alternate(feature,sequence,descriptions,unicode,replacement,value,"normal")
+ end
+ elseif defaultalt=="first" then
+ replacement=data[1]
+ changed[unicode]=replacement
+ if trace_alternatives then
+ report_alternate(feature,sequence,descriptions,unicode,replacement,value,defaultalt)
+ end
+ elseif defaultalt=="last" then
+ replacement=data[#data]
+ 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
+ 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,tree=ligature[1],ligature[2]
+ make_1(present,tree,"ctx_"..unicode)
+ end
+ for i=1,nofligatures do
+ local ligature=ligatures[i]
+ local unicode,tree,lookupname=ligature[1],ligature[2],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]
+ if step.format=="kern" 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
+ if not kern[2] and not (kerns and kerns[otherunicode]) then
+ local kern=kern[1]
+ if 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 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 rawfeatures=rawdata.resources.features
+ local basesubstitutions=rawfeatures and rawfeatures.gsub
+ local basepositionings=rawfeatures and rawfeatures.gpos
+ 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)
+ 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)
+ end
+ end
+ end
+ end
+ end
+ end
+ 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,
+ }
+}
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “font-oto”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-otj” 4fbf8dc804adad64f05679380bad63cb] ---
+
+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=next,rawget
+local utfchar=utf.char
+local fastcopy=table.fastcopy
+local registertracker=trackers.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("otf.spaces",function(v) trace_spaces=v end)
+local use_advance=false directives.register("fonts.injections.advance",function(v) use_advance=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 parameters=fonts.hashes.parameters
+local resources=fonts.hashes.resources
+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 newkern=nodepool.kern
+local tonode=nuts.tonode
+local tonut=nuts.tonut
+local getfield=nuts.getfield
+local setfield=nuts.setfield
+local getnext=nuts.getnext
+local getprev=nuts.getprev
+local getid=nuts.getid
+local getfont=nuts.getfont
+local getsubtype=nuts.getsubtype
+local getchar=nuts.getchar
+local getboth=nuts.getboth
+local ischar=nuts.is_char
+local getdisc=nuts.getdisc
+local setdisc=nuts.setdisc
+local traverse_id=nuts.traverse_id
+local traverse_char=nuts.traverse_char
+local insert_node_before=nuts.insert_before
+local insert_node_after=nuts.insert_after
+local find_tail=nuts.tail
+local properties=nodes.properties.data
+function injections.installnewkern(nk)
+ newkern=nk or newkern
+end
+local nofregisteredkerns=0
+local nofregisteredpairs=0
+local nofregisteredmarks=0
+local nofregisteredcursives=0
+local keepregisteredcounts=false
+function injections.keepcounts()
+ keepregisteredcounts=true
+end
+function injections.resetcounts()
+ nofregisteredkerns=0
+ nofregisteredpairs=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
+ propertydata[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)
+ 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.setpair(current,factor,rlmode,r2lflag,spec,injection)
+ local x=factor*spec[1]
+ local y=factor*spec[2]
+ local w=factor*spec[3]
+ local h=factor*spec[4]
+ 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
+ nofregisteredpairs=nofregisteredpairs+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=rawget(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,nofregisteredpairs
+ 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=rawget(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.setmark(start,base,factor,rlmode,ba,ma,tfmbase,mkmk)
+ local dx,dy=factor*(ba[1]-ma[1]),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
+ end
+ else
+ p.injections={
+ markx=dx,
+ marky=dy,
+ markdir=rlmode or 0,
+ markbase=nofregisteredmarks,
+ markbasenode=base,
+ markmark=mkmk,
+ }
+ end
+ else
+ properties[start]={
+ injections={
+ markx=dx,
+ marky=dy,
+ markdir=rlmode or 0,
+ markbase=nofregisteredmarks,
+ markbasenode=base,
+ markmark=mkmk,
+ },
+ }
+ 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=rawget(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 traverse_id(glyph_code,n) do
+ showchar(n,where)
+ show(n,what,where," ")
+ end
+ report_injections("end subrun")
+end
+local function trace(head,where)
+ report_injections("begin run %s: %s kerns, %s pairs, %s marks and %s cursives registered",
+ where or "",nofregisteredkerns,nofregisteredpairs,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
+ report_injections("char: %C, width %p, xoffset %p, yoffset %p",
+ getchar(current),getfield(current,"width"),getfield(current,"xoffset"),getfield(current,"yoffset"))
+ skipping=false
+ elseif id==kern_code then
+ report_injections("kern: %p",getfield(current,"kern"))
+ skipping=false
+ elseif not skipping then
+ report_injections()
+ skipping=true
+ end
+ current=getnext(current)
+ end
+end
+local function inject_kerns_only(head,where)
+ head=tonut(head)
+ if trace_injections then
+ trace(head,"kerns")
+ 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 id=getid(current)
+ local next=getnext(current)
+ if id==glyph_code then
+ if getsubtype(current)<256 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
+ if use_advance then
+ setfield(current,"xoffset",leftkern)
+ setfield(current,"xadvance",leftkern)
+ else
+ insert_node_before(head,current,newkern(leftkern))
+ 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
+ if use_advance then
+ setfield(post,"xadvance",leftkern)
+ else
+ insert_node_after(post,posttail,newkern(leftkern))
+ done=true
+ end
+ end
+ end
+ end
+ if replace then
+ local i=p.replaceinjections
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ if use_advance then
+ setfield(replace,"xadvance",leftkern)
+ else
+ insert_node_after(replace,replacetail,newkern(leftkern))
+ done=true
+ end
+ end
+ end
+ else
+ local i=p.emptyinjections
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ setfield(prev,"replace",newkern(leftkern))
+ end
+ end
+ end
+ if done then
+ setdisc(prevdisc,pre,post,replace)
+ end
+ end
+ end
+ end
+ 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 traverse_char(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
+ if use_advance then
+ setfield(pre,"xoffset",leftkern)
+ setfield(pre,"xadvance",leftkern)
+ else
+ pre=insert_node_before(pre,n,newkern(leftkern))
+ done=true
+ end
+ end
+ end
+ end
+ end
+ end
+ if post then
+ for n in traverse_char(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
+ if use_advance then
+ setfield(post,"xoffset",leftkern)
+ setfield(post,"xadvance",leftkern)
+ else
+ post=insert_node_before(post,n,newkern(leftkern))
+ done=true
+ end
+ end
+ end
+ end
+ end
+ end
+ if replace then
+ for n in traverse_char(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
+ if use_advance then
+ setfield(replace,"xoffset",leftkern)
+ setfield(replace,"xadvance",leftkern)
+ else
+ replace=insert_node_before(replace,n,newkern(leftkern))
+ done=true
+ end
+ 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
+ nofregisteredkerns=0
+ end
+ return tonode(head),true
+end
+local function inject_pairs_only(head,where)
+ head=tonut(head)
+ if trace_injections then
+ trace(head,"pairs")
+ 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 id=getid(current)
+ local next=getnext(current)
+ if id==glyph_code then
+ if getsubtype(current)<256 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
+ setfield(current,"yoffset",yoffset)
+ end
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ insert_node_before(head,current,newkern(leftkern))
+ end
+ local rightkern=i.rightkern
+ if rightkern and rightkern~=0 then
+ insert_node_after(head,current,newkern(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
+ setfield(next,"replace",newkern(rightkern))
+ 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
+ insert_node_after(post,posttail,newkern(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
+ insert_node_after(replace,replacetail,newkern(leftkern))
+ done=true
+ end
+ end
+ else
+ local i=p.emptyinjections
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ setfield(prev,"replace",newkern(leftkern))
+ end
+ end
+ end
+ if done then
+ setdisc(prevdisc,pre,post,replace)
+ end
+ end
+ end
+ end
+ 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 traverse_char(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
+ setfield(n,"yoffset",yoffset)
+ end
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ pre=insert_node_before(pre,n,newkern(leftkern))
+ done=true
+ end
+ local rightkern=i.rightkern
+ if rightkern and rightkern~=0 then
+ insert_node_after(pre,n,newkern(rightkern))
+ done=true
+ end
+ end
+ end
+ end
+ end
+ if post then
+ for n in traverse_char(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
+ setfield(n,"yoffset",yoffset)
+ end
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ post=insert_node_before(post,n,newkern(leftkern))
+ done=true
+ end
+ local rightkern=i.rightkern
+ if rightkern and rightkern~=0 then
+ insert_node_after(post,n,newkern(rightkern))
+ done=true
+ end
+ end
+ end
+ end
+ end
+ if replace then
+ for n in traverse_char(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
+ setfield(n,"yoffset",yoffset)
+ end
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ replace=insert_node_before(replace,n,newkern(leftkern))
+ done=true
+ end
+ local rightkern=i.rightkern
+ if rightkern and rightkern~=0 then
+ insert_node_after(replace,n,newkern(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,newkern(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,newkern(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
+ nofregisteredkerns=0
+ end
+ return tonode(head),true
+end
+local function showoffset(n,flag)
+ local o=getfield(n,"xoffset")
+ if o==0 then
+ o=getfield(n,"yoffset")
+ end
+ if o~=0 then
+ setcolor(n,flag and "darkred" or "darkgreen")
+ else
+ resetcolor(n)
+ end
+end
+local function inject_everything(head,where)
+ head=tonut(head)
+ if trace_injections then
+ trace(head,"everything")
+ end
+ local hascursives=nofregisteredcursives>0
+ local hasmarks=nofregisteredmarks>0
+ local current=head
+ local last=nil
+ local font=font
+ local markdata=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=getfield(p,"xoffset")
+ 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
+ if rightkern then
+ if pn.markdir<0 then
+ ox=px-pn.markx-rightkern
+ else
+ if false then
+ local leftkern=pp.leftkern
+ if leftkern then
+ ox=px-pn.markx-leftkern
+ else
+ ox=px-pn.markx
+ end
+ else
+ ox=px-pn.markx
+ end
+ end
+ else
+ ox=px-pn.markx
+ local wn=getfield(n,"width")
+ if wn~=0 then
+ pn.leftkern=-wn/2
+ pn.rightkern=-wn/2
+ end
+ end
+ local oy=getfield(n,"yoffset")+getfield(p,"yoffset")+pn.marky
+ setfield(n,"xoffset",ox)
+ setfield(n,"yoffset",oy)
+ if trace_marks then
+ showoffset(n,true)
+ end
+ end
+ while current do
+ local id=getid(current)
+ local next=getnext(current)
+ if id==glyph_code then
+ if getsubtype(current)<256 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
+ 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 ny=getfield(current,"yoffset")
+ for i=maxc,minc,-1 do
+ local ti=glyphs[i]
+ ny=ny+properties[ti].cursivedy
+ setfield(ti,"yoffset",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 ny=getfield(current,"yoffset")
+ for i=maxc,minc,-1 do
+ local ti=glyphs[i]
+ ny=ny+properties[ti].cursivedy
+ setfield(ti,"yoffset",ny)
+ if trace_cursive then
+ showoffset(ti)
+ end
+ end
+ maxc=0
+ end
+ cursiveanchor=nil
+ end
+ end
+ local yoffset=i.yoffset
+ if yoffset and yoffset~=0 then
+ setfield(current,"yoffset",yoffset)
+ end
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ insert_node_before(head,current,newkern(leftkern))
+ end
+ local rightkern=i.rightkern
+ if rightkern and rightkern~=0 then
+ insert_node_after(head,current,newkern(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
+ setfield(next,"replace",newkern(rightkern))
+ 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
+ insert_node_after(post,posttail,newkern(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
+ insert_node_after(replace,replacetail,newkern(leftkern))
+ done=true
+ end
+ end
+ else
+ local i=p.emptyinjections
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ setfield(prev,"replace",newkern(leftkern))
+ end
+ end
+ if done then
+ setdisc(prevdisc,pre,post,replace)
+ end
+ end
+ end
+ else
+ if hascursives and maxc>0 then
+ local ny=getfield(current,"yoffset")
+ for i=maxc,minc,-1 do
+ local ti=glyphs[i]
+ ny=ny+properties[ti].cursivedy
+ setfield(ti,"yoffset",getfield(ti,"yoffset")+ny)
+ end
+ maxc=0
+ cursiveanchor=nil
+ end
+ end
+ end
+ 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 traverse_char(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
+ setfield(n,"yoffset",yoffset)
+ end
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ pre=insert_node_before(pre,n,newkern(leftkern))
+ done=true
+ end
+ local rightkern=i.rightkern
+ if rightkern and rightkern~=0 then
+ insert_node_after(pre,n,newkern(rightkern))
+ done=true
+ end
+ end
+ if hasmarks then
+ local pm=i.markbasenode
+ if pm then
+ processmark(pm,current,i)
+ end
+ end
+ end
+ end
+ end
+ if post then
+ for n in traverse_char(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
+ setfield(n,"yoffset",yoffset)
+ end
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ post=insert_node_before(post,n,newkern(leftkern))
+ done=true
+ end
+ local rightkern=i.rightkern
+ if rightkern and rightkern~=0 then
+ insert_node_after(post,n,newkern(rightkern))
+ done=true
+ end
+ end
+ if hasmarks then
+ local pm=i.markbasenode
+ if pm then
+ processmark(pm,current,i)
+ end
+ end
+ end
+ end
+ end
+ if replace then
+ for n in traverse_char(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
+ setfield(n,"yoffset",yoffset)
+ end
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ replace=insert_node_before(replace,n,newkern(leftkern))
+ done=true
+ end
+ local rightkern=i.rightkern
+ if rightkern and rightkern~=0 then
+ insert_node_after(replace,n,newkern(rightkern))
+ done=true
+ end
+ end
+ if hasmarks then
+ local pm=i.markbasenode
+ if pm then
+ processmark(pm,current,i)
+ 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,newkern(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,newkern(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 ny=getfield(last,"yoffset")
+ for i=maxc,minc,-1 do
+ local ti=glyphs[i]
+ ny=ny+properties[ti].cursivedy
+ setfield(ti,"yoffset",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
+ nofregisteredpairs=0
+ nofregisteredmarks=0
+ nofregisteredcursives=0
+ end
+ return tonode(head),true
+end
+local triggers=false
+function nodes.injections.setspacekerns(font,sequence)
+ if triggers then
+ triggers[font]=sequence
+ else
+ triggers={ [font]=sequence }
+ end
+end
+local function injectspaces(head)
+ if not triggers then
+ return head,false
+ 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
+ local par=parameters[font]
+ factor=par.factor
+ threshold=par.spacing.width-1
+ lastfont=font
+ end
+ for n in traverse_id(glue_code,tonut(head)) do
+ local prev,next=getboth(n)
+ local prevchar=ischar(prev)
+ local nextchar=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(next)
+ 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=getfield(n,"width")
+ if old>=threshold then
+ if rightkern then
+ local new=old+(leftkern+rightkern)*factor
+ if trace_spaces then
+ report_spaces("%C [%p -> %p] %C",prevchar,old,new,nextchar)
+ end
+ setfield(n,"width",new)
+ leftkern=false
+ else
+ local new=old+leftkern*factor
+ if trace_spaces then
+ report_spaces("%C [%p -> %p]",prevchar,old,new)
+ end
+ setfield(n,"width",new)
+ end
+ end
+ leftkern=false
+ elseif rightkern then
+ local old=getfield(n,"width")
+ if old>=threshold then
+ local new=old+rightkern*factor
+ if trace_spaces then
+ report_spaces("[%p -> %p] %C",nextchar,old,new)
+ end
+ setfield(n,"width",new)
+ end
+ rightkern=false
+ end
+ end
+ triggers=false
+ return head,true
+end
+function injections.handler(head,where)
+ if triggers then
+ head=injectspaces(head)
+ end
+ if nofregisteredmarks>0 or nofregisteredcursives>0 then
+ return inject_everything(head,where)
+ elseif nofregisteredpairs>0 then
+ return inject_pairs_only(head,where)
+ elseif nofregisteredkerns>0 then
+ return inject_kerns_only(head,where)
+ else
+ return head,false
+ end
+end
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “font-otj”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-ota” 613dee572209df8e25b7a9aa5a7173e9] ---
+
+if not modules then modules={} end modules ['font-ota']={
+ version=1.001,
+ comment="companion to font-otf.lua (analysing)",
+ 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 getfield=nuts.getfield
+local getnext=nuts.getnext
+local getprev=nuts.getprev
+local getprev=nuts.getprev
+local getprop=nuts.getprop
+local setprop=nuts.setprop
+local getfont=nuts.getfont
+local getsubtype=nuts.getsubtype
+local getchar=nuts.getchar
+local ischar=nuts.is_char
+local traverse_id=nuts.traverse_id
+local traverse_node_list=nuts.traverse
+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.newfeatures("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={
+ 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={
+ 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={
+ l=s_init,
+ d=s_medi,
+ c=s_medi,
+ r=s_fina,
+ u=s_isol,
+}
+local classifiers=characters.classifiers
+if not classifiers then
+ local first_arabic,last_arabic=characters.blockrange("arabic")
+ local first_syriac,last_syriac=characters.blockrange("syriac")
+ local first_mandiac,last_mandiac=characters.blockrange("mandiac")
+ local first_nko,last_nko=characters.blockrange("nko")
+ classifiers=table.setmetatableindex(function(t,k)
+ 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>=first_arabic and k<=last_arabic or k>=first_syriac and k<=last_syriac or
+ k>=first_mandiac and k<=last_mandiac or k>=first_nko and k<=last_nko then
+ if categories[k]=="mn" then
+ v=s_mark
+ else
+ v=s_rest
+ end
+ end
+ end
+ t[k]=v
+ return v
+ end)
+end
+function methods.arab(head,font,attr)
+ local first,last=nil,nil
+ local c_first,c_last=nil,nil
+ local current,done=head,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 --- [luaotfload, fontloader-2016-04-21.lua scope for “font-ota”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-ots” 23c5a9b3f755dd139c801e0827e299ea] ---
+
+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 logs,trackers,nodes,attributes=logs,trackers,nodes,attributes
+local registertracker=trackers.register
+local registerdirective=directives.register
+local fonts=fonts
+local otf=fonts.handlers.otf
+local trace_lookups=false registertracker("otf.lookups",function(v) trace_lookups=v end)
+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_applied=false registertracker("otf.applied",function(v) trace_applied=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_directions=false registertracker("otf.directions",function(v) trace_directions=v end)
+local trace_kernruns=false registertracker("otf.kernruns",function(v) trace_kernruns=v end)
+local trace_discruns=false registertracker("otf.discruns",function(v) trace_discruns=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 quit_on_no_replacement=true
+local zwnjruns=true
+local optimizekerns=true
+registerdirective("otf.zwnjruns",function(v) zwnjruns=v end)
+registerdirective("otf.chain.quitonnoreplacement",function(value) quit_on_no_replacement=value 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")
+local report_check=logs.reporter("fonts","otf check")
+registertracker("otf.replacements","otf.singles,otf.multiples,otf.alternatives,otf.ligatures")
+registertracker("otf.positions","otf.marks,otf.kerns,otf.cursive")
+registertracker("otf.actions","otf.replacements,otf.positions")
+registertracker("otf.injections","nodes.injections")
+registertracker("*otf.sample","otf.steps,otf.actions,otf.analyzing")
+local nuts=nodes.nuts
+local tonode=nuts.tonode
+local tonut=nuts.tonut
+local getfield=nuts.getfield
+local setfield=nuts.setfield
+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 getattr=nuts.getattr
+local setattr=nuts.setattr
+local getprop=nuts.getprop
+local setprop=nuts.setprop
+local getfont=nuts.getfont
+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 ischar=nuts.is_char
+local insert_node_before=nuts.insert_before
+local insert_node_after=nuts.insert_after
+local delete_node=nuts.delete
+local remove_node=nuts.remove
+local copy_node=nuts.copy
+local copy_node_list=nuts.copy_list
+local find_node_tail=nuts.tail
+local flush_node_list=nuts.flush_list
+local free_node=nuts.free
+local end_of_math=nuts.end_of_math
+local traverse_nodes=nuts.traverse
+local traverse_id=nuts.traverse_id
+local setmetatableindex=table.setmetatableindex
+local zwnj=0x200C
+local zwj=0x200D
+local wildcard="*"
+local default="dflt"
+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 discretionary_code=disccodes.discretionary
+local ligature_code=glyphcodes.ligature
+local privateattribute=attributes.private
+local a_state=privateattribute('state')
+local injections=nodes.injections
+local setmark=injections.setmark
+local setcursive=injections.setcursive
+local setkern=injections.setkern
+local setpair=injections.setpair
+local resetinjection=injections.reset
+local copyinjection=injections.copy
+local setligaindex=injections.setligaindex
+local getligaindex=injections.getligaindex
+local cursonce=true
+local fonthashes=fonts.hashes
+local fontdata=fonthashes.identifiers
+local otffeatures=fonts.constructors.newfeatures("otf")
+local registerotffeature=otffeatures.register
+local onetimemessage=fonts.loggers.onetimemessage or function() end
+otf.defaultnodealternate="none"
+local tfmdata=false
+local characters=false
+local descriptions=false
+local marks=false
+local currentfont=false
+local factor=0
+local threshold=0
+local sweepnode=nil
+local sweepprev=nil
+local sweepnext=nil
+local sweephead={}
+local notmatchpre={}
+local notmatchpost={}
+local notmatchreplace={}
+local handlers={}
+local function isspace(n)
+ if getid(n)==glue_code then
+ local w=getfield(n,"width")
+ if w>=threshold then
+ return 32
+ end
+ end
+end
+local checkstep=(nodes and nodes.tracers and nodes.tracers.steppers.check) or function() end
+local registerstep=(nodes and nodes.tracers and nodes.tracers.steppers.register) or function() end
+local registermessage=(nodes and nodes.tracers and nodes.tracers.steppers.message) or function() end
+local function logprocess(...)
+ if trace_steps then
+ registermessage(...)
+ end
+ report_direct(...)
+end
+local function logwarning(...)
+ report_direct(...)
+end
+local f_unicode=formatters["%U"]
+local f_uniname=formatters["%U (%s)"]
+local f_unilist=formatters["% t (% t)"]
+local function gref(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 num,nam={},{}
+ for i=1,#n do
+ local ni=n[i]
+ if tonumber(ni) then
+ local di=descriptions[ni]
+ num[i]=f_unicode(ni)
+ nam[i]=di and di.name or "-"
+ end
+ end
+ return f_unilist(num,nam)
+ else
+ return "<error in node mode tracing>"
+ end
+end
+local function cref(dataset,sequence,index)
+ if not dataset then
+ return "no valid dataset"
+ elseif index then
+ return formatters["feature %a, type %a, chain lookup %a, index %a"](dataset[4],sequence.type,sequence.name,index)
+ else
+ return formatters["feature %a, type %a, chain lookup %a"](dataset[4],sequence.type,sequence.name)
+ end
+end
+local function pref(dataset,sequence)
+ return formatters["feature %a, type %a, lookup %a"](dataset[4],sequence.type,sequence.name)
+end
+local function mref(rlmode)
+ if not rlmode or rlmode==0 then
+ return "---"
+ elseif rlmode==-1 or rlmode=="+TRT" then
+ return "r2l"
+ else
+ return "l2r"
+ end
+end
+local function copy_glyph(g)
+ local components=getfield(g,"components")
+ if components then
+ setfield(g,"components",nil)
+ local n=copy_node(g)
+ copyinjection(n,g)
+ setfield(g,"components",components)
+ return n
+ else
+ local n=copy_node(g)
+ copyinjection(n,g)
+ return n
+ end
+end
+local function flattendisk(head,disc)
+ local _,_,replace,_,_,replacetail=getdisc(disc,true)
+ setfield(disc,"replace",nil)
+ free_node(disc)
+ if head==disc then
+ local next=getnext(disc)
+ if replace then
+ if next then
+ setlink(replacetail,next)
+ end
+ return replace,replace
+ elseif next then
+ return next,next
+ else
+ return
+ end
+ else
+ local prev,next=getboth(disc)
+ 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=phead
+ end
+ if replace then
+ setlink(replacetail,replacehead)
+ else
+ replace=rhead
+ end
+ setdisc(disc,pre,post,replace)
+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,nil)
+ setnext(stop,nil)
+ local base=copy_glyph(start)
+ if head==start then
+ head=base
+ end
+ resetinjection(base)
+ setchar(base,char)
+ setsubtype(base,ligature_code)
+ setfield(base,"components",start)
+ setlink(prev,base)
+ setlink(base,next)
+ return head,base
+ end
+end
+local function getcomponentindex(start)
+ if getid(start)~=glyph_code then
+ return 0
+ elseif getsubtype(start)==ligature_code then
+ local i=0
+ local components=getfield(start,"components")
+ while components do
+ i=i+getcomponentindex(components)
+ components=getnext(components)
+ end
+ return i
+ elseif not marks[getchar(start)] then
+ return 1
+ else
+ return 0
+ end
+end
+local a_noligature=attributes.private("noligature")
+local function toligature(head,start,stop,char,dataset,sequence,markflag,discfound)
+ 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 components=getfield(start,"components")
+ if components then
+ end
+ local prev=getprev(start)
+ local next=getnext(stop)
+ local comp=start
+ setprev(start,nil)
+ setnext(stop,nil)
+ local base=copy_glyph(start)
+ if start==head then
+ head=base
+ end
+ resetinjection(base)
+ setchar(base,char)
+ setsubtype(base,ligature_code)
+ setfield(base,"components",comp)
+ if prev then
+ setnext(prev,base)
+ end
+ if next then
+ setprev(next,base)
+ end
+ setboth(base,prev,next)
+ if not discfound then
+ local deletemarks=markflag~="mark"
+ 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=getcomponentindex(start)
+ 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 copied=copy_node_list(comp)
+ setprev(discnext,nil)
+ setnext(discprev,nil)
+ if pre then
+ setlink(discprev,pre)
+ end
+ pre=comp
+ if post then
+ setlink(posttail,discnext)
+ setprev(post,nil)
+ else
+ post=discnext
+ end
+ setlink(prev,discfound)
+ setlink(discfound,next)
+ setboth(base,nil,nil)
+ setfield(base,"components",copied)
+ setdisc(discfound,pre,post,base,discretionary_code)
+ base=prev
+ end
+ end
+ end
+ return head,base
+end
+local function multiple_glyphs(head,start,multiple,ignoremarks)
+ 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
+ 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 value=="random" then
+ local r=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)
+ 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,sequence.flags[1])
+end
+function handlers.gsub_ligature(head,start,dataset,sequence,ligature)
+ local current=getnext(start)
+ if not current then
+ return head,start,false,nil
+ end
+ local stop=nil
+ local startchar=getchar(start)
+ if marks[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 skipmark=sequence.flags[1]
+ local discfound=false
+ local lastdisc=nil
+ while current do
+ local char,id=ischar(current,currentfont)
+ if char then
+ if skipmark and marks[char] then
+ current=getnext(current)
+ else
+ local lg=ligature[char]
+ if lg then
+ if not discfound and lastdisc then
+ discfound=lastdisc
+ lastdisc=nil
+ end
+ stop=current
+ ligature=lg
+ current=getnext(current)
+ else
+ break
+ end
+ end
+ elseif char==false then
+ break
+ elseif id==disc_code then
+ local replace=getfield(current,"replace")
+ if replace then
+ while replace do
+ local char,id=ischar(replace,currentfont)
+ if char then
+ local lg=ligature[char]
+ if lg then
+ ligature=lg
+ replace=getnext(replace)
+ else
+ return head,start,false,false
+ end
+ else
+ return head,start,false,false
+ end
+ end
+ stop=current
+ end
+ lastdisc=current
+ current=getnext(current)
+ else
+ break
+ 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,skipmark,discfound)
+ 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,skipmark,discfound)
+ 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,discfound
+ else
+ end
+ end
+ return head,start,false,discfound
+end
+function handlers.gpos_single(head,start,dataset,sequence,kerns,rlmode,step,i,injection)
+ local startchar=getchar(start)
+ if step.format=="pair" then
+ local dx,dy,w,h=setpair(start,factor,rlmode,sequence.flags[4],kerns,injection)
+ if trace_kerns then
+ logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",pref(dataset,sequence),gref(startchar),dx,dy,w,h)
+ end
+ else
+ local k=setkern(start,factor,rlmode,kerns,injection)
+ if trace_kerns then
+ logprocess("%s: shifting single %s by %p",pref(dataset,sequence),gref(startchar),k)
+ end
+ end
+ return head,start,false
+end
+function handlers.gpos_pair(head,start,dataset,sequence,kerns,rlmode,step,i,injection)
+ local snext=getnext(start)
+ if not snext then
+ return head,start,false
+ else
+ local prev=start
+ local done=false
+ while snext do
+ local nextchar=ischar(snext,currentfont)
+ if nextchar then
+ local krn=kerns[nextchar]
+ if not krn and marks[nextchar] then
+ prev=snext
+ snext=getnext(snext)
+ elseif not krn then
+ break
+ elseif step.format=="pair" then
+ local a,b=krn[1],krn[2]
+ if optimizekerns then
+ if not b and a[1]==0 and a[2]==0 and a[4]==0 then
+ local k=setkern(snext,factor,rlmode,a[3],injection)
+ if trace_kerns then
+ logprocess("%s: shifting single %s by %p",pref(dataset,sequence),gref(nextchar),k)
+ end
+ done=true
+ break
+ end
+ end
+ if a and #a>0 then
+ local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a,injection)
+ if trace_kerns then
+ local startchar=getchar(start)
+ logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p) as %s",pref(dataset,sequence),gref(startchar),gref(nextchar),x,y,w,h,injection or "injections")
+ end
+ end
+ if b and #b>0 then
+ local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b,injection)
+ if trace_kerns then
+ local startchar=getchar(snext)
+ logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p) as %s",pref(dataset,sequence),gref(startchar),gref(nextchar),x,y,w,h,injection or "injections")
+ end
+ end
+ done=true
+ break
+ elseif krn~=0 then
+ local k=setkern(snext,factor,rlmode,krn,injection)
+ if trace_kerns then
+ logprocess("%s: inserting kern %p between %s and %s as %s",pref(dataset,sequence),k,gref(getchar(prev)),gref(nextchar),injection or "injections")
+ end
+ done=true
+ break
+ else
+ break
+ end
+ else
+ break
+ end
+ end
+ return head,start,done
+ end
+end
+function handlers.gpos_mark2base(head,start,dataset,sequence,markanchors,rlmode)
+ 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])
+ if trace_marks then
+ logprocess("%s, anchor %s, bound %s: anchoring mark %s to basechar %s => (%p,%p)",
+ pref(dataset,sequence),anchor,bound,gref(markchar),gref(basechar),dx,dy)
+ end
+ return head,start,true
+ 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)
+ 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])
+ if trace_marks then
+ logprocess("%s, anchor %s, index %s, bound %s: anchoring mark %s to baselig %s at index %s => (%p,%p)",
+ pref(dataset,sequence),anchor,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)
+ 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)
+ if trace_marks then
+ logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%p,%p)",
+ pref(dataset,sequence),anchor,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,step,i)
+ local done=false
+ 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 not done and 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 dx,dy,bound=setcursive(start,nxt,factor,rlmode,exit,entry,characters[startchar],characters[nextchar])
+ if trace_cursive then
+ logprocess("%s: moving %s to %s cursive (%p,%p) using anchor %s and bound %s in %s mode",pref(dataset,sequence),gref(startchar),gref(nextchar),dx,dy,anchor,bound,mref(rlmode))
+ end
+ done=true
+ end
+ end
+ end
+ break
+ end
+ end
+ end
+ return head,start,done
+end
+local chainprocs={}
+local function logprocess(...)
+ if trace_steps then
+ registermessage(...)
+ end
+ report_subchain(...)
+end
+local logwarning=report_subchain
+local function logprocess(...)
+ if trace_steps then
+ registermessage(...)
+ end
+ report_chain(...)
+end
+local logwarning=report_chain
+local function reversesub(head,start,stop,dataset,sequence,replacements,rlmode)
+ 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 reportmoresteps(dataset,sequence)
+ logwarning("%s: more than 1 step",cref(dataset,sequence))
+end
+function chainprocs.gsub_single(head,start,stop,dataset,sequence,currentlookup,chainindex)
+ local steps=currentlookup.steps
+ local nofsteps=currentlookup.nofsteps
+ if nofsteps>1 then
+ reportmoresteps(dataset,sequence)
+ end
+ local current=start
+ while current do
+ local currentchar=ischar(current)
+ if currentchar then
+ local replacement=steps[1].coverage[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
+ return head,start,false
+end
+function chainprocs.gsub_multiple(head,start,stop,dataset,sequence,currentlookup)
+ local steps=currentlookup.steps
+ local nofsteps=currentlookup.nofsteps
+ if nofsteps>1 then
+ reportmoresteps(dataset,sequence)
+ end
+ local startchar=getchar(start)
+ local replacement=steps[1].coverage[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,currentlookup.flags[1])
+ end
+ return head,start,false
+end
+function chainprocs.gsub_alternate(head,start,stop,dataset,sequence,currentlookup)
+ local steps=currentlookup.steps
+ local nofsteps=currentlookup.nofsteps
+ if nofsteps>1 then
+ reportmoresteps(dataset,sequence)
+ end
+ 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=steps[1].coverage[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(char),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(char),comment)
+ end
+ end
+ end
+ return head,start,true
+ elseif currentchar==false then
+ break
+ elseif current==stop then
+ break
+ else
+ current=getnext(current)
+ end
+ end
+ return head,start,false
+end
+function chainprocs.gsub_ligature(head,start,stop,dataset,sequence,currentlookup,chainindex)
+ local steps=currentlookup.steps
+ local nofsteps=currentlookup.nofsteps
+ if nofsteps>1 then
+ reportmoresteps(dataset,sequence)
+ end
+ local startchar=getchar(start)
+ local ligatures=steps[1].coverage[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 current=getnext(start)
+ local discfound=false
+ local last=stop
+ local nofreplacements=1
+ local skipmark=currentlookup.flags[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 skipmark and marks[schar] then
+ current=getnext(current)
+ else
+ local lg=ligatures[schar]
+ if lg then
+ ligatures=lg
+ last=current
+ nofreplacements=nofreplacements+1
+ 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,skipmark,discfound)
+ 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
+ return head,start,false,0,false
+end
+function chainprocs.gpos_single(head,start,stop,dataset,sequence,currentlookup,rlmode,chainindex)
+ local steps=currentlookup.steps
+ local nofsteps=currentlookup.nofsteps
+ if nofsteps>1 then
+ reportmoresteps(dataset,sequence)
+ end
+ local startchar=getchar(start)
+ local step=steps[1]
+ local kerns=step.coverage[startchar]
+ if not kerns then
+ elseif step.format=="pair" then
+ local dx,dy,w,h=setpair(start,factor,rlmode,sequence.flags[4],kerns)
+ if trace_kerns then
+ logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",cref(dataset,sequence),gref(startchar),dx,dy,w,h)
+ end
+ else
+ local k=setkern(start,factor,rlmode,kerns,injection)
+ if trace_kerns then
+ logprocess("%s: shifting single %s by %p",cref(dataset,sequence),gref(startchar),k)
+ end
+ end
+ return head,start,false
+end
+function chainprocs.gpos_pair(head,start,stop,dataset,sequence,currentlookup,rlmode,chainindex)
+ local steps=currentlookup.steps
+ local nofsteps=currentlookup.nofsteps
+ if nofsteps>1 then
+ reportmoresteps(dataset,sequence)
+ end
+ local snext=getnext(start)
+ if snext then
+ local startchar=getchar(start)
+ local step=steps[1]
+ local kerns=step.coverage[startchar]
+ if kerns then
+ local prev=start
+ local done=false
+ while snext do
+ local nextchar=ischar(snext,currentfont)
+ if not nextchar then
+ break
+ end
+ local krn=kerns[nextchar]
+ if not krn and marks[nextchar] then
+ prev=snext
+ snext=getnext(snext)
+ elseif not krn then
+ break
+ elseif step.format=="pair" then
+ local a,b=krn[1],krn[2]
+ if optimizekerns then
+ if not b and a[1]==0 and a[2]==0 and a[4]==0 then
+ local k=setkern(snext,factor,rlmode,a[3],"injections")
+ if trace_kerns then
+ logprocess("%s: shifting single %s by %p",cref(dataset,sequence),gref(startchar),k)
+ end
+ done=true
+ break
+ end
+ end
+ if a and #a>0 then
+ local startchar=getchar(start)
+ local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a,"injections")
+ if trace_kerns then
+ 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 and #b>0 then
+ local startchar=getchar(start)
+ local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b,"injections")
+ if trace_kerns then
+ 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
+ end
+ done=true
+ break
+ elseif krn~=0 then
+ local k=setkern(snext,factor,rlmode,krn)
+ if trace_kerns then
+ logprocess("%s: inserting kern %s between %s and %s",cref(dataset,sequence),k,gref(getchar(prev)),gref(nextchar))
+ end
+ done=true
+ break
+ else
+ break
+ end
+ end
+ return head,start,done
+ end
+ end
+ return head,start,false
+end
+function chainprocs.gpos_mark2base(head,start,stop,dataset,sequence,currentlookup,rlmode)
+ local steps=currentlookup.steps
+ local nofsteps=currentlookup.nofsteps
+ if nofsteps>1 then
+ reportmoresteps(dataset,sequence)
+ end
+ local markchar=getchar(start)
+ if marks[markchar] then
+ local markanchors=steps[1].coverage[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])
+ if trace_marks then
+ logprocess("%s, anchor %s, bound %s: anchoring mark %s to basechar %s => (%p,%p)",
+ cref(dataset,sequence),anchor,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
+ return head,start,false
+end
+function chainprocs.gpos_mark2ligature(head,start,stop,dataset,sequence,currentlookup,rlmode)
+ local steps=currentlookup.steps
+ local nofsteps=currentlookup.nofsteps
+ if nofsteps>1 then
+ reportmoresteps(dataset,sequence)
+ end
+ local markchar=getchar(start)
+ if marks[markchar] then
+ local markanchors=steps[1].coverage[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])
+ if trace_marks then
+ logprocess("%s, anchor %s, bound %s: anchoring mark %s to baselig %s at index %s => (%p,%p)",
+ cref(dataset,sequence),anchor,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
+ return head,start,false
+end
+function chainprocs.gpos_mark2mark(head,start,stop,dataset,sequence,currentlookup,rlmode)
+ local steps=currentlookup.steps
+ local nofsteps=currentlookup.nofsteps
+ if nofsteps>1 then
+ reportmoresteps(dataset,sequence)
+ end
+ local markchar=getchar(start)
+ if marks[markchar] then
+ local markanchors=steps[1].coverage[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)
+ if trace_marks then
+ logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%p,%p)",
+ cref(dataset,sequence),anchor,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
+ return head,start,false
+end
+function chainprocs.gpos_cursive(head,start,stop,dataset,sequence,currentlookup,rlmode)
+ local steps=currentlookup.steps
+ local nofsteps=currentlookup.nofsteps
+ if nofsteps>1 then
+ reportmoresteps(dataset,sequence)
+ end
+ local startchar=getchar(start)
+ local exitanchors=steps[1].coverage[startchar]
+ if exitanchors then
+ local done=false
+ 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 not done and 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 dx,dy,bound=setcursive(start,nxt,factor,rlmode,exit,entry,characters[startchar],characters[nextchar])
+ if trace_cursive then
+ logprocess("%s: moving %s to %s cursive (%p,%p) using anchor %s and bound %s in %s mode",pref(dataset,sequence),gref(startchar),gref(nextchar),dx,dy,anchor,bound,mref(rlmode))
+ end
+ done=true
+ break
+ end
+ end
+ elseif trace_bugs then
+ onetimemessage(currentfont,startchar,"no entry anchors",report_fonts)
+ end
+ break
+ end
+ end
+ end
+ return head,start,done
+ else
+ if trace_cursive and trace_details then
+ logprocess("%s, cursive %s is already done",pref(dataset,sequence),gref(getchar(start)),alreadydone)
+ end
+ return head,start,false
+ end
+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 function chaindisk(head,start,last,dataset,sequence,chainlookup,rlmode,k,ck,chainproc)
+ 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 checkdisc=getprev(head)
+ local keepdisc=not sweepnode
+ local lookaheaddisc=nil
+ local backtrackdisc=nil
+ local current=start
+ local last=start
+ local prev=getprev(start)
+ 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==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<=l do
+ if getid(replace)==glyph_code then
+ i=i+1
+ end
+ replace=getnext(replace)
+ end
+ last=current
+ current=getnext(c)
+ 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,nil)
+ setnext(tail,nil)
+ 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==disc_code then
+ if keepdisc then
+ keepdisc=false
+ if notmatchpre[current]~=notmatchreplace[current] then
+ lookaheaddisc=current
+ end
+ local replace=getfield(c,"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==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 ok=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
+ setprev(lookaheaddisc,cprev)
+ if cprev then
+ setnext(cprev,lookaheaddisc)
+ end
+ setprev(cf,nil)
+ setnext(cl,nil)
+ if startishead then
+ head=lookaheaddisc
+ end
+ local pre,post,replace=getdisc(lookaheaddisc)
+ local new=copy_node_list(cf)
+ local cnew=new
+ for i=1,insertedmarks do
+ cnew=getnext(cnew)
+ end
+ local clast=cnew
+ for i=f,l do
+ clast=getnext(clast)
+ end
+ if not notmatchpre[lookaheaddisc] then
+ cf,start,ok=chainproc(cf,start,last,dataset,sequence,chainlookup,rlmode,k)
+ end
+ if not notmatchreplace[lookaheaddisc] then
+ new,cnew,ok=chainproc(new,cnew,clast,dataset,sequence,chainlookup,rlmode,k)
+ end
+ if pre then
+ setlink(cl,pre)
+ end
+ if replace then
+ local tail=find_node_tail(new)
+ setlink(tail,replace)
+ end
+ setdisc(lookaheaddisc,cf,post,new)
+ start=getprev(lookaheaddisc)
+ sweephead[cf]=getnext(clast)
+ sweephead[new]=getnext(last)
+ 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
+ if cnext then
+ setprev(cnext,backtrackdisc)
+ end
+ setnext(backtrackdisc,cnext)
+ setprev(cf,nil)
+ setnext(cl,nil)
+ 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
+ cf,start,ok=chainproc(cf,start,last,dataset,sequence,chainlookup,rlmode,k)
+ end
+ if not notmatchreplace[backtrackdisc] then
+ new,cnew,ok=chainproc(new,cnew,clast,dataset,sequence,chainlookup,rlmode,k)
+ end
+ if post then
+ setlink(posttail,cf)
+ else
+ post=cf
+ end
+ if replace then
+ setlink(replacetail,new)
+ else
+ replace=new
+ end
+ setdisc(backtrackdisc,pre,post,replace)
+ start=getprev(backtrackdisc)
+ sweephead[post]=getnext(clast)
+ sweephead[replace]=getnext(last)
+ else
+ head,start,ok=chainproc(head,start,last,dataset,sequence,chainlookup,rlmode,k)
+ end
+ return head,start,ok
+end
+local noflags={ false,false,false,false }
+local function handle_contextchain(head,start,dataset,sequence,contexts,rlmode)
+ local sweepnode=sweepnode
+ local sweeptype=sweeptype
+ local currentfont=currentfont
+ local diskseen=false
+ local checkdisc=getprev(head)
+ local flags=sequence.flags or noflags
+ local done=false
+ local skipmark=flags[1]
+ local skipligature=flags[2]
+ local skipbase=flags[3]
+ local markclass=sequence.markclass
+ local skipped=false
+ for k=1,#contexts do
+ local match=true
+ local current=start
+ local last=start
+ local ck=contexts[k]
+ local seq=ck[3]
+ local s=#seq
+ if s==1 then
+ local char=ischar(current,currentfont)
+ if char then
+ match=seq[1][char]
+ end
+ else
+ local f=ck[4]
+ local l=ck[5]
+ if f==1 and f==l then
+ else
+ if f==l then
+ else
+ local discfound=nil
+ local n=f+1
+ last=getnext(last)
+ while n<=l do
+ if not last and (sweeptype=="post" or sweeptype=="replace") then
+ last=getnext(sweepnode)
+ sweeptype=nil
+ end
+ if last then
+ local char,id=ischar(last,currentfont)
+ if char then
+ local ccd=descriptions[char]
+ if ccd then
+ local class=ccd.class or "base"
+ if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
+ skipped=true
+ if trace_skips then
+ show_skip(dataset,sequence,char,ck,class)
+ end
+ last=getnext(last)
+ elseif seq[n][char] then
+ if n<l then
+ last=getnext(last)
+ end
+ n=n+1
+ else
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpre[discfound]
+ else
+ match=false
+ end
+ break
+ end
+ else
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpre[discfound]
+ else
+ match=false
+ end
+ break
+ end
+ last=getnext(last)
+ elseif char==false then
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpre[discfound]
+ else
+ match=false
+ end
+ break
+ elseif id==disc_code then
+ diskseen=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
+ pre=getnext(pre)
+ if n>l then
+ break
+ end
+ else
+ notmatchpre[last]=true
+ break
+ end
+ end
+ if n<=l then
+ notmatchpre[last]=true
+ end
+ else
+ notmatchpre[last]=true
+ end
+ if replace then
+ while replace do
+ if seq[n][getchar(replace)] then
+ n=n+1
+ replace=getnext(replace)
+ if n>l then
+ break
+ end
+ else
+ notmatchreplace[last]=true
+ match=not notmatchpre[last]
+ break
+ end
+ end
+ match=not notmatchpre[last]
+ end
+ last=getnext(last)
+ else
+ match=false
+ break
+ end
+ else
+ match=false
+ break
+ end
+ end
+ end
+ end
+ if match and f>1 then
+ local prev=getprev(start)
+ if prev then
+ if prev==checkdisc and (sweeptype=="pre" or sweeptype=="replace") then
+ prev=getprev(sweepnode)
+ end
+ if prev then
+ local discfound=nil
+ local n=f-1
+ while n>=1 do
+ if prev then
+ local char,id=ischar(prev,currentfont)
+ if char then
+ local ccd=descriptions[char]
+ if ccd then
+ local class=ccd.class
+ if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
+ skipped=true
+ if trace_skips then
+ show_skip(dataset,sequence,char,ck,class)
+ end
+ elseif seq[n][char] then
+ n=n -1
+ else
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpost[discfound]
+ else
+ match=false
+ end
+ break
+ end
+ else
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpost[discfound]
+ else
+ match=false
+ end
+ break
+ end
+ prev=getprev(prev)
+ elseif char==false then
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpost[discfound]
+ else
+ match=false
+ end
+ break
+ elseif id==disc_code then
+ diskseen=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 then
+ break
+ else
+ posttail=getprev(posttail)
+ if n<1 then
+ break
+ end
+ 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 then
+ break
+ else
+ replacetail=getprev(replacetail)
+ if n<1 then
+ break
+ end
+ end
+ else
+ notmatchreplace[prev]=true
+ match=not notmatchpost[prev]
+ break
+ end
+ end
+ if not match then
+ break
+ end
+ else
+ end
+ else
+ end
+ elseif seq[n][32] then
+ n=n-1
+ else
+ match=false
+ break
+ end
+ prev=getprev(prev)
+ elseif seq[n][32] then
+ n=n-1
+ else
+ match=false
+ break
+ end
+ end
+ else
+ match=false
+ end
+ else
+ match=false
+ end
+ end
+ if match and s>l then
+ local current=last and getnext(last)
+ if not current then
+ if sweeptype=="post" or sweeptype=="replace" then
+ current=getnext(sweepnode)
+ end
+ end
+ if current then
+ local discfound=nil
+ local n=l+1
+ while n<=s do
+ if current then
+ local char,id=ischar(current,currentfont)
+ if char then
+ local ccd=descriptions[char]
+ if ccd then
+ local class=ccd.class
+ if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
+ skipped=true
+ if trace_skips then
+ show_skip(dataset,sequence,char,ck,class)
+ end
+ elseif seq[n][char] then
+ n=n+1
+ else
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpre[discfound]
+ else
+ match=false
+ end
+ break
+ end
+ else
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpre[discfound]
+ else
+ match=false
+ end
+ break
+ end
+ elseif char==false then
+ if discfound then
+ notmatchreplace[discfound]=true
+ match=not notmatchpre[discfound]
+ else
+ match=false
+ end
+ break
+ elseif id==disc_code then
+ diskseen=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
+ pre=getnext(pre)
+ if n>s then
+ break
+ 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
+ replace=getnext(replace)
+ if n>s then
+ break
+ end
+ else
+ notmatchreplace[current]=true
+ match=notmatchpre[current]
+ break
+ end
+ end
+ if not match then
+ break
+ end
+ else
+ end
+ elseif seq[n][32] then
+ n=n+1
+ else
+ match=false
+ break
+ end
+ current=getnext(current)
+ elseif seq[n][32] then
+ n=n+1
+current=getnext(current)
+ else
+ match=false
+ break
+ end
+ end
+ else
+ match=false
+ end
+ end
+ end
+ if match then
+ local diskchain=diskseen or sweepnode
+ if trace_contexts then
+ local rule=ck[1]
+ local lookuptype=ck[8] or ck[2]
+ local first=ck[4]
+ local last=ck[5]
+ local char=getchar(start)
+ logwarning("%s: rule %s matches at char %s for (%s,%s,%s) chars, lookuptype %a",
+ cref(dataset,sequence),rule,gref(char),first-1,last-first+1,s-last,lookuptype)
+ end
+ local chainlookups=ck[6]
+ if chainlookups then
+ local nofchainlookups=#chainlookups
+ if nofchainlookups==1 then
+ local chainlookup=chainlookups[1]
+ local chainkind=chainlookup.type
+ local chainproc=chainprocs[chainkind]
+ if chainproc then
+ local ok
+ if diskchain then
+ head,start,ok=chaindisk(head,start,last,dataset,sequence,chainlookup,rlmode,1,ck,chainproc)
+ else
+ head,start,ok=chainproc(head,start,last,dataset,sequence,chainlookup,rlmode,1)
+ end
+ if ok then
+ done=true
+ end
+ else
+ logprocess("%s: %s is not yet supported (1)",cref(dataset,sequence),chainkind)
+ end
+ else
+ local i=1
+ while start and true do
+ if skipped then
+ while start do
+ local char=getchar(start)
+ local ccd=descriptions[char]
+ if ccd then
+ local class=ccd.class or "base"
+ if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
+ start=getnext(start)
+ else
+ break
+ end
+ else
+ break
+ end
+ end
+ end
+ local chainlookup=chainlookups[1]
+ if not chainlookup then
+ i=i+1
+ else
+ local chainkind=chainlookup.type
+ local chainproc=chainprocs[chainkind]
+ if chainproc then
+ local ok,n
+ if diskchain then
+ head,start,ok=chaindisk(head,start,last,dataset,sequence,chainlookup,rlmode,i,ck,chainproc)
+ else
+ head,start,ok,n=chainproc(head,start,last,dataset,sequence,chainlookup,rlmode,i)
+ end
+ if ok then
+ done=true
+ if n and n>1 then
+ if i+n>nofchainlookups then
+ break
+ else
+ end
+ end
+ end
+ else
+ logprocess("%s: %s is not yet supported (2)",cref(dataset,sequence),chainkind)
+ end
+ i=i+1
+ end
+ if i>nofchainlookups or not start then
+ break
+ elseif start then
+ start=getnext(start)
+ end
+ end
+ end
+ else
+ local replacements=ck[7]
+ if replacements then
+ head,start,done=reversesub(head,start,last,dataset,sequence,replacements,rlmode)
+ else
+ done=quit_on_no_replacement
+ if trace_contexts then
+ logprocess("%s: skipping match",cref(dataset,sequence))
+ end
+ end
+ end
+ if done then
+ break
+ end
+ end
+ end
+ if diskseen 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)
+ local steps=currentlookup.steps
+ local nofsteps=currentlookup.nofsteps
+ if nofsteps>1 then
+ reportmoresteps(dataset,sequence)
+ end
+ return handle_contextchain(head,start,dataset,sequence,currentlookup,rlmode)
+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 function logprocess(...)
+ if trace_steps then
+ registermessage(...)
+ end
+ report_process(...)
+end
+local logwarning=report_process
+local function report_missing_coverage(dataset,sequence)
+ local t=missing[currentfont]
+ if not t[sequence] then
+ t[sequence]=true
+ logwarning("missing coverage for feature %a, lookup %a, type %a, font %a, name %a",
+ dataset[4],sequence.name,sequence.type,currentfont,tfmdata.properties.fullname)
+ end
+end
+local resolved={}
+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)
+local autofeatures=fonts.analyzers.features
+local featuretypes=otf.tables.featuretypes
+local defaultscript=otf.features.checkeddefaultscript
+local defaultlanguage=otf.features.checkeddefaultlanguage
+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
+ 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
+ return rl
+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 (pre or replace) and not ischar(prev,font) then
+ prev=false
+ end
+ if next and (post or replace) 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
+ local nest=getprev(pre)
+ setlink(prev,pre)
+ if k_run(prevmarks,"preinjections",pre,font,attr,...) then
+ done=true
+ end
+ setprev(pre,nest)
+ setnext(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,nil)
+ setprev(next,disc)
+ end
+ end
+ if replace then
+ if k_run(replace,"injections",nil,font,attr,...) then
+ done=true
+ end
+ if prev then
+ local nest=getprev(replace)
+ setlink(prev,replace)
+ if k_run(prevmarks,"replaceinjections",replace,font,attr,...) then
+ done=true
+ end
+ setprev(replace,nest)
+ setnext(prev,disc)
+ end
+ if next then
+ setlink(replacetail,next)
+ if k_run(replacetail,"replaceinjections",next,font,attr,...) then
+ done=true
+ end
+ setnext(replacetail,nil)
+ setprev(next,disc)
+ end
+ elseif prev and next then
+ setlink(prev,next)
+ if k_run(prevmarks,"emptyinjections",next,font,attr,...) then
+ done=true
+ end
+ setlink(prev,disc)
+ setlink(disc,next)
+ 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
+ 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 done=false
+ if replace and prev then
+ setlink(replacetail,next)
+ local ok,overflow=t_run(replace,next,...)
+ if ok and overflow then
+ setfield(disc,"replace",nil)
+ setlink(prev,replace)
+ setboth(disc)
+ flush_node_list(disc)
+ return replace,true
+ else
+ setnext(replacetail)
+ setprev(next,disc)
+ end
+ end
+ local renewed=false
+ 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)
+ return next,true
+ else
+ return next,done
+ end
+end
+local nesting=0
+local function c_run_single(head,font,attr,lookupcache,step,dataset,sequence,rlmode,handler)
+ local done=false
+ local sweep=sweephead[head]
+ if sweep then
+ start=sweep
+ sweephead[head]=nil
+ else
+ start=head
+ end
+ while start do
+ local char=ischar(start,font)
+ if char then
+ local a=getattr(start,0)
+ 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,step,1)
+ 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)
+ while start~=stop do
+ local char=ischar(start,font)
+ if char then
+ local a=getattr(start,0)
+ if not a or (a==attr) then
+ local lookupmatch=lookupcache[char]
+ if lookupmatch then
+ local s=getnext(start)
+ local l=nil
+ local d=0
+ while s do
+ if s==stop then
+ d=1
+ elseif d>0 then
+ d=d+1
+ end
+ local lg=lookupmatch[getchar(s)]
+ if lg then
+ l=lg
+ s=getnext(s)
+ else
+ break
+ end
+ end
+ if l and l.ligature then
+ return true,d>1
+ end
+ end
+ end
+ start=getnext(start)
+ else
+ break
+ end
+ end
+end
+local function k_run_single(sub,injection,last,font,attr,lookupcache,step,dataset,sequence,rlmode,handler)
+ local a=getattr(sub,0)
+ if not a or (a==attr) then
+ for n in traverse_nodes(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,step,1,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,handler)
+ local done=false
+ local sweep=sweephead[head]
+ if sweep then
+ start=sweep
+ sweephead[head]=nil
+ else
+ start=head
+ end
+ while start do
+ local char=ischar(start,font)
+ if char then
+ local a=getattr(start,0)
+ if not a or (a==attr) then
+ for i=1,nofsteps do
+ local step=steps[i]
+ local lookupcache=step.coverage
+ if lookupcache then
+ local lookupmatch=lookupcache[char]
+ if lookupmatch then
+ local ok
+ head,start,ok=handler(head,start,dataset,sequence,lookupmatch,rlmode,step,i)
+ if ok then
+ done=true
+ break
+ elseif not start then
+ break
+ end
+ end
+ else
+ report_missing_coverage(dataset,sequence)
+ 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)
+ while start~=stop do
+ local char=ischar(start,font)
+ if char then
+ local a=getattr(start,0)
+ if not a or (a==attr) then
+ for i=1,nofsteps do
+ local step=steps[i]
+ local lookupcache=step.coverage
+ if lookupcache then
+ local lookupmatch=lookupcache[char]
+ if lookupmatch then
+ local s=getnext(start)
+ local l=nil
+ local d=0
+ while s do
+ if s==stop then
+ d=1
+ elseif d>0 then
+ d=d+1
+ end
+ local lg=lookupmatch[getchar(s)]
+ if lg then
+ l=lg
+ s=getnext(s)
+ else
+ break
+ end
+ end
+ if l and l.ligature then
+ return true,d>1
+ end
+ end
+ else
+ report_missing_coverage(dataset,sequence)
+ end
+ end
+ end
+ start=getnext(start)
+ else
+ break
+ end
+ end
+end
+local function k_run_multiple(sub,injection,last,font,attr,steps,nofsteps,dataset,sequence,rlmode,handler)
+ local a=getattr(sub,0)
+ if not a or (a==attr) then
+ for n in traverse_nodes(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
+ if lookupcache then
+ local lookupmatch=lookupcache[char]
+ if lookupmatch then
+ local h,d,ok=handler(head,n,dataset,sequence,lookupmatch,step,rlmode,i,injection)
+ if ok then
+ return true
+ end
+ end
+ else
+ report_missing_coverage(dataset,sequence)
+ end
+ end
+ end
+ end
+ end
+end
+local function txtdirstate(start,stack,top,rlparmode)
+ local dir=getfield(start,"dir")
+ local new=1
+ if dir=="+TRT" then
+ top=top+1
+ stack[top]=dir
+ new=-1
+ elseif dir=="+TLT" then
+ top=top+1
+ stack[top]=dir
+ elseif dir=="-TRT" or dir=="-TLT" then
+ top=top-1
+ if stack[top]=="+TRT" then
+ new=-1
+ end
+ else
+ new=rlparmode
+ end
+ if trace_directions then
+ report_process("directions after txtdir %a: parmode %a, txtmode %a, level %a",dir,mref(rlparmode),mref(new),topstack)
+ end
+ return getnext(start),top,new
+end
+local function pardirstate(start)
+ local dir=getfield(start,"dir")
+ local new=0
+ if dir=="TLT" then
+ new=1
+ elseif dir=="TRT" then
+ new=-1
+ end
+ if trace_directions then
+ report_process("directions after pardir %a: parmode %a",dir,mref(new))
+ end
+ return getnext(start),new,new
+end
+local function featuresprocessor(head,font,attr)
+ local sequences=sequencelists[font]
+ if not sequencelists then
+ return head,false
+ end
+ nesting=nesting+1
+ if nesting==1 then
+ currentfont=font
+ tfmdata=fontdata[font]
+ descriptions=tfmdata.descriptions
+ characters=tfmdata.characters
+ marks=tfmdata.resources.marks
+ factor=tfmdata.parameters.factor
+ threshold=tfmdata.parameters.spacing.width or 65536*10
+ elseif currentfont~=font then
+ report_warning("nested call with a different font, level %s, quitting",nesting)
+ nesting=nesting-1
+ return head,false
+ end
+ head=tonut(head)
+ if trace_steps then
+ checkstep(head)
+ end
+ local rlmode=0
+ local done=false
+ local datasets=otf.dataset(tfmdata,font,attr)
+ local dirstack={}
+ sweephead={}
+ for s=1,#datasets do
+ local dataset=datasets[s]
+ local attribute=dataset[2]
+ local sequence=dataset[3]
+ local rlparmode=0
+ local topstack=0
+ local success=false
+ local typ=sequence.type
+ local gpossing=typ=="gpos_single" or typ=="gpos_pair"
+ local handler=handlers[typ]
+ local steps=sequence.steps
+ local nofsteps=sequence.nofsteps
+ if not steps then
+ local h,d,ok=handler(head,start,dataset,sequence,nil,nil,nil,0,font,attr)
+ if ok then
+ success=true
+ if h then
+ head=h
+ end
+ if d then
+ start=d
+ end
+ end
+ elseif typ=="gsub_reversecontextchain" then
+ local start=find_node_tail(head)
+ while start do
+ local char=ischar(start,font)
+ if char then
+ local a=getattr(start,0)
+ if not a or (a==attr) then
+ for i=1,nofsteps do
+ local step=steps[i]
+ local lookupcache=step.coverage
+ if lookupcache then
+ local lookupmatch=lookupcache[char]
+ if lookupmatch then
+ local ok
+ head,start,ok=handler(head,start,dataset,sequence,lookupmatch,rlmode,step,i)
+ if ok then
+ success=true
+ break
+ end
+ end
+ else
+ report_missing_coverage(dataset,sequence)
+ end
+ end
+ if start then
+ start=getprev(start)
+ end
+ else
+ start=getprev(start)
+ end
+ else
+ start=getprev(start)
+ end
+ end
+ else
+ local start=head
+ rlmode=0
+ if nofsteps==1 then
+ local step=steps[1]
+ local lookupcache=step.coverage
+ if not lookupcache then
+ report_missing_coverage(dataset,sequence)
+ else
+ while start do
+ local char,id=ischar(start,font)
+ if char then
+ local a=getattr(start,0)
+ if a then
+ a=(a==attr) and (not attribute or getprop(start,a_state)==attribute)
+ else
+ a=not attribute or getprop(start,a_state)==attribute
+ end
+ if a then
+ local lookupmatch=lookupcache[char]
+ if lookupmatch then
+ local ok
+ head,start,ok=handler(head,start,dataset,sequence,lookupmatch,rlmode,step,1)
+ if ok then
+ success=true
+ end
+ end
+ if start then
+ start=getnext(start)
+ end
+ else
+ start=getnext(start)
+ end
+ elseif char==false then
+ start=getnext(start)
+ elseif id==disc_code then
+ local ok
+ if gpossing then
+ start,ok=kernrun(start,k_run_single,font,attr,lookupcache,step,dataset,sequence,rlmode,handler)
+ elseif typ=="gsub_ligature" then
+ start,ok=testrun(start,t_run_single,c_run_single,font,attr,lookupcache,step,dataset,sequence,rlmode,handler)
+ else
+ start,ok=comprun(start,c_run_single,font,attr,lookupcache,step,dataset,sequence,rlmode,handler)
+ end
+ if ok then
+ success=true
+ end
+ elseif id==math_code then
+ start=getnext(end_of_math(start))
+ elseif id==dir_code then
+ start,topstack,rlmode=txtdirstate(start,dirstack,topstack,rlparmode)
+ elseif id==localpar_code then
+ start,rlparmode,rlmode=pardirstate(start)
+ else
+ start=getnext(start)
+ end
+ end
+ end
+ else
+ while start do
+ local char,id=ischar(start,font)
+ if char then
+ local a=getattr(start,0)
+ if a then
+ a=(a==attr) and (not attribute or getprop(start,a_state)==attribute)
+ else
+ a=not attribute or getprop(start,a_state)==attribute
+ end
+ if a then
+ for i=1,nofsteps do
+ local step=steps[i]
+ local lookupcache=step.coverage
+ if lookupcache then
+ local lookupmatch=lookupcache[char]
+ if lookupmatch then
+ local ok
+ head,start,ok=handler(head,start,dataset,sequence,lookupmatch,rlmode,step,i)
+ if ok then
+ success=true
+ break
+ elseif not start then
+ break
+ end
+ end
+ else
+ report_missing_coverage(dataset,sequence)
+ end
+ end
+ if start then
+ start=getnext(start)
+ end
+ else
+ start=getnext(start)
+ end
+ elseif char==false then
+ start=getnext(start)
+ elseif id==disc_code then
+ local ok
+ if gpossing then
+ start,ok=kernrun(start,k_run_multiple,font,attr,steps,nofsteps,dataset,sequence,rlmode,handler)
+ elseif typ=="gsub_ligature" then
+ start,ok=testrun(start,t_run_multiple,c_run_multiple,font,attr,steps,nofsteps,dataset,sequence,rlmode,handler)
+ else
+ start,ok=comprun(start,c_run_multiple,font,attr,steps,nofsteps,dataset,sequence,rlmode,handler)
+ end
+ if ok then
+ success=true
+ end
+ elseif id==math_code then
+ start=getnext(end_of_math(start))
+ elseif id==dir_code then
+ start,topstack,rlmode=txtdirstate(start,dirstack,topstack,rlparmode)
+ elseif id==localpar_code then
+ start,rlparmode,rlmode=pardirstate(start)
+ else
+ start=getnext(start)
+ end
+ end
+ end
+ end
+ if success then
+ done=true
+ end
+ if trace_steps then
+ registerstep(head)
+ end
+ end
+ nesting=nesting-1
+ head=tonode(head)
+ return head,done
+end
+local function featuresinitializer(tfmdata,value)
+end
+registerotffeature {
+ name="features",
+ description="features",
+ default=true,
+ initializers={
+ position=1,
+ node=featuresinitializer,
+ },
+ processors={
+ node=featuresprocessor,
+ }
+}
+otf.handlers=handlers
+local setspacekerns=nodes.injections.setspacekerns if not setspacekerns then os.exit() end
+function otf.handlers.trigger_space_kerns(head,start,dataset,sequence,_,_,_,_,font,attr)
+ setspacekerns(font,sequence)
+ return head,start,true
+end
+local function hasspacekerns(data)
+ local sequences=data.resources.sequences
+ for i=1,#sequences do
+ local sequence=sequences[i]
+ local steps=sequence.steps
+ if steps and sequence.features.kern then
+ for i=1,#steps do
+ local coverage=steps[i].coverage
+ if not coverage then
+ elseif coverage[32] then
+ return true
+ else
+ for k,v in next,coverage do
+ if v[32] then
+ return true
+ 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 spacekerns==nil then
+ local properties=tfmdata.properties
+ if properties and properties.hasspacekerns then
+ local sequences=resources.sequences
+ 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.kern
+ if kern then
+ feat=feat or kern
+ for i=1,#steps do
+ local step=steps[i]
+ local coverage=step.coverage
+ if coverage then
+ local kerns=coverage[32]
+ if kerns then
+ for k,v in next,kerns do
+ if type(v)=="table" then
+ right[k]=v[3]
+ else
+ right[k]=v
+ end
+ end
+ end
+ for k,v in next,coverage do
+ local kern=v[32]
+ if kern then
+ if type(kern)=="table" then
+ left[k]=kern[3]
+ else
+ left[k]=kern
+ end
+ end
+ end
+ end
+ end
+ last=i
+ end
+ else
+ 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={ kern=feat or { dflt={ dflt=true,} } },
+ flags=noflags,
+ name="trigger_space_kerns",
+ order={ "kern" },
+ type="trigger_space_kerns",
+ left=left,
+ right=right,
+ }
+ insert(sequences,last,triggersequence)
+ end
+ else
+ spacekerns=false
+ end
+ else
+ spacekerns=false
+ end
+ resources.spacekerns=spacekerns
+ end
+ return spacekerns
+end
+registerotffeature {
+ name="spacekern",
+ description="space kern injection",
+ default=true,
+ initializers={
+ node=spaceinitializer,
+ },
+}
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “font-ots”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-osd” 67fc27b4ec499b31941f5a941e55c998] ---
+
+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=table.insert,table.imerge,table.copy
+local next,type=next,type
+local report_devanagari=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 nodecodes=nodes.nodecodes
+local glyph_code=nodecodes.glyph
+local handlers=otf.handlers
+local methods=fonts.analyzers.methods
+local otffeatures=fonts.constructors.newfeatures("otf")
+local registerotffeature=otffeatures.register
+local nuts=nodes.nuts
+local tonode=nuts.tonode
+local tonut=nuts.tonut
+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.is_char
+local insert_node_after=nuts.insert_after
+local copy_node=nuts.copy
+local free_node=nuts.free
+local remove_node=nuts.remove
+local flush_list=nuts.flush_list
+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 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 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 xprocesscharacters=nil
+if context then
+ xprocesscharacters=function(head,font)
+ xprocesscharacters=nodes.handlers.characters
+ return xprocesscharacters(head,font)
+ end
+else
+ xprocesscharacters=function(head,font)
+ xprocesscharacters=nodes.handlers.nodepass
+ return xprocesscharacters(head,font)
+ end
+end
+local function processcharacters(head,font)
+ return tonut(xprocesscharacters(tonode(head)))
+end
+local consonant={
+ [0x0915]=true,[0x0916]=true,[0x0917]=true,[0x0918]=true,
+ [0x0919]=true,[0x091A]=true,[0x091B]=true,[0x091C]=true,
+ [0x091D]=true,[0x091E]=true,[0x091F]=true,[0x0920]=true,
+ [0x0921]=true,[0x0922]=true,[0x0923]=true,[0x0924]=true,
+ [0x0925]=true,[0x0926]=true,[0x0927]=true,[0x0928]=true,
+ [0x0929]=true,[0x092A]=true,[0x092B]=true,[0x092C]=true,
+ [0x092D]=true,[0x092E]=true,[0x092F]=true,[0x0930]=true,
+ [0x0931]=true,[0x0932]=true,[0x0933]=true,[0x0934]=true,
+ [0x0935]=true,[0x0936]=true,[0x0937]=true,[0x0938]=true,
+ [0x0939]=true,[0x0958]=true,[0x0959]=true,[0x095A]=true,
+ [0x095B]=true,[0x095C]=true,[0x095D]=true,[0x095E]=true,
+ [0x095F]=true,[0x0979]=true,[0x097A]=true,
+ [0x0C95]=true,[0x0C96]=true,[0x0C97]=true,[0x0C98]=true,
+ [0x0C99]=true,[0x0C9A]=true,[0x0C9B]=true,[0x0C9C]=true,
+ [0x0C9D]=true,[0x0C9E]=true,[0x0C9F]=true,[0x0CA0]=true,
+ [0x0CA1]=true,[0x0CA2]=true,[0x0CA3]=true,[0x0CA4]=true,
+ [0x0CA5]=true,[0x0CA6]=true,[0x0CA7]=true,[0x0CA8]=true,
+ [0x0CA9]=true,[0x0CAA]=true,[0x0CAB]=true,[0x0CAC]=true,
+ [0x0CAD]=true,[0x0CAE]=true,[0x0CAF]=true,[0x0CB0]=true,
+ [0x0CB1]=true,[0x0CB2]=true,[0x0CB3]=true,[0x0CB4]=true,
+ [0x0CB5]=true,[0x0CB6]=true,[0x0CB7]=true,[0x0CB8]=true,
+ [0x0CB9]=true,
+ [0x0CDE]=true,
+ [0x0D15]=true,[0x0D16]=true,[0x0D17]=true,[0x0D18]=true,
+ [0x0D19]=true,[0x0D1A]=true,[0x0D1B]=true,[0x0D1C]=true,
+ [0x0D1D]=true,[0x0D1E]=true,[0x0D1F]=true,[0x0D20]=true,
+ [0x0D21]=true,[0x0D22]=true,[0x0D23]=true,[0x0D24]=true,
+ [0x0D25]=true,[0x0D26]=true,[0x0D27]=true,[0x0D28]=true,
+ [0x0D29]=true,[0x0D2A]=true,[0x0D2B]=true,[0x0D2C]=true,
+ [0x0D2D]=true,[0x0D2E]=true,[0x0D2F]=true,[0x0D30]=true,
+ [0x0D31]=true,[0x0D32]=true,[0x0D33]=true,[0x0D34]=true,
+ [0x0D35]=true,[0x0D36]=true,[0x0D37]=true,[0x0D38]=true,
+ [0x0D39]=true,[0x0D3A]=true,
+}
+local independent_vowel={
+ [0x0904]=true,[0x0905]=true,[0x0906]=true,[0x0907]=true,
+ [0x0908]=true,[0x0909]=true,[0x090A]=true,[0x090B]=true,
+ [0x090C]=true,[0x090D]=true,[0x090E]=true,[0x090F]=true,
+ [0x0910]=true,[0x0911]=true,[0x0912]=true,[0x0913]=true,
+ [0x0914]=true,[0x0960]=true,[0x0961]=true,[0x0972]=true,
+ [0x0973]=true,[0x0974]=true,[0x0975]=true,[0x0976]=true,
+ [0x0977]=true,
+ [0x0C85]=true,[0x0C86]=true,[0x0C87]=true,[0x0C88]=true,
+ [0x0C89]=true,[0x0C8A]=true,[0x0C8B]=true,[0x0C8C]=true,
+ [0x0C8D]=true,[0x0C8E]=true,[0x0C8F]=true,[0x0C90]=true,
+ [0x0C91]=true,[0x0C92]=true,[0x0C93]=true,[0x0C94]=true,
+ [0x0D05]=true,[0x0D06]=true,[0x0D07]=true,[0x0D08]=true,
+ [0x0D09]=true,[0x0D0A]=true,[0x0D0B]=true,[0x0D0C]=true,
+ [0x0D0E]=true,[0x0D0F]=true,[0x0D10]=true,[0x0D12]=true,
+ [0x0D13]=true,[0x0D14]=true,
+}
+local dependent_vowel={
+ [0x093A]=true,[0x093B]=true,[0x093E]=true,[0x093F]=true,
+ [0x0940]=true,[0x0941]=true,[0x0942]=true,[0x0943]=true,
+ [0x0944]=true,[0x0945]=true,[0x0946]=true,[0x0947]=true,
+ [0x0948]=true,[0x0949]=true,[0x094A]=true,[0x094B]=true,
+ [0x094C]=true,[0x094E]=true,[0x094F]=true,[0x0955]=true,
+ [0x0956]=true,[0x0957]=true,[0x0962]=true,[0x0963]=true,
+ [0x0CBE]=true,[0x0CBF]=true,[0x0CC0]=true,[0x0CC1]=true,
+ [0x0CC2]=true,[0x0CC3]=true,[0x0CC4]=true,[0x0CC5]=true,
+ [0x0CC6]=true,[0x0CC7]=true,[0x0CC8]=true,[0x0CC9]=true,
+ [0x0CCA]=true,[0x0CCB]=true,[0x0CCC]=true,
+ [0x0D3E]=true,[0x0D3F]=true,[0x0D40]=true,[0x0D41]=true,
+ [0x0D42]=true,[0x0D43]=true,[0x0D44]=true,[0x0D46]=true,
+ [0x0D47]=true,[0x0D48]=true,[0x0D4A]=true,[0x0D4B]=true,
+ [0x0D4C]=true,[0x0D57]=true,
+}
+local vowel_modifier={
+ [0x0900]=true,[0x0901]=true,[0x0902]=true,[0x0903]=true,
+ [0xA8E0]=true,[0xA8E1]=true,[0xA8E2]=true,[0xA8E3]=true,
+ [0xA8E4]=true,[0xA8E5]=true,[0xA8E6]=true,[0xA8E7]=true,
+ [0xA8E8]=true,[0xA8E9]=true,[0xA8EA]=true,[0xA8EB]=true,
+ [0xA8EC]=true,[0xA8ED]=true,[0xA8EE]=true,[0xA8EF]=true,
+ [0xA8F0]=true,[0xA8F1]=true,
+ [0x0D02]=true,[0x0D03]=true,
+}
+local stress_tone_mark={
+ [0x0951]=true,[0x0952]=true,[0x0953]=true,[0x0954]=true,
+ [0x0CCD]=true,
+ [0x0D4D]=true,
+}
+local nukta={
+ [0x093C]=true,
+ [0x0CBC]=true,
+}
+local halant={
+ [0x094D]=true,
+ [0x0CCD]=true,
+ [0x0D4D]=true,
+}
+local ra={
+ [0x0930]=true,
+ [0x0CB0]=true,
+ [0x0D30]=true,
+}
+local c_anudatta=0x0952
+local c_nbsp=0x00A0
+local c_zwnj=0x200C
+local c_zwj=0x200D
+local zw_char={
+ [0x200C]=true,
+ [0x200D]=true,
+}
+local pre_mark={
+ [0x093F]=true,[0x094E]=true,
+ [0x0D46]=true,[0x0D47]=true,[0x0D48]=true,
+}
+local above_mark={
+ [0x0900]=true,[0x0901]=true,[0x0902]=true,[0x093A]=true,
+ [0x0945]=true,[0x0946]=true,[0x0947]=true,[0x0948]=true,
+ [0x0951]=true,[0x0953]=true,[0x0954]=true,[0x0955]=true,
+ [0xA8E0]=true,[0xA8E1]=true,[0xA8E2]=true,[0xA8E3]=true,
+ [0xA8E4]=true,[0xA8E5]=true,[0xA8E6]=true,[0xA8E7]=true,
+ [0xA8E8]=true,[0xA8E9]=true,[0xA8EA]=true,[0xA8EB]=true,
+ [0xA8EC]=true,[0xA8ED]=true,[0xA8EE]=true,[0xA8EF]=true,
+ [0xA8F0]=true,[0xA8F1]=true,
+ [0x0D4E]=true,
+}
+local below_mark={
+ [0x093C]=true,[0x0941]=true,[0x0942]=true,[0x0943]=true,
+ [0x0944]=true,[0x094D]=true,[0x0952]=true,[0x0956]=true,
+ [0x0957]=true,[0x0962]=true,[0x0963]=true,
+}
+local post_mark={
+ [0x0903]=true,[0x093B]=true,[0x093E]=true,[0x0940]=true,
+ [0x0949]=true,[0x094A]=true,[0x094B]=true,[0x094C]=true,
+ [0x094F]=true,
+}
+local twopart_mark={
+ [0x0D4A]={ 0x0D46,0x0D3E,},
+ [0x0D4B]={ 0x0D47,0x0D3E,},
+ [0x0D4C]={ 0x0D46,0x0D57,},
+}
+local mark_four={}
+for k,v in next,pre_mark do mark_four[k]=pre_mark end
+for k,v in next,above_mark do mark_four[k]=above_mark end
+for k,v in next,below_mark do mark_four[k]=below_mark end
+for k,v in next,post_mark do mark_four[k]=post_mark end
+local mark_above_below_post={}
+for k,v in next,above_mark do mark_above_below_post[k]=above_mark end
+for k,v in next,below_mark do mark_above_below_post[k]=below_mark end
+for k,v in next,post_mark do mark_above_below_post[k]=post_mark end
+local reorder_class={
+ [0x0930]="before postscript",
+ [0x093F]="before half",
+ [0x0940]="after subscript",
+ [0x0941]="after subscript",
+ [0x0942]="after subscript",
+ [0x0943]="after subscript",
+ [0x0944]="after subscript",
+ [0x0945]="after subscript",
+ [0x0946]="after subscript",
+ [0x0947]="after subscript",
+ [0x0948]="after subscript",
+ [0x0949]="after subscript",
+ [0x094A]="after subscript",
+ [0x094B]="after subscript",
+ [0x094C]="after subscript",
+ [0x0962]="after subscript",
+ [0x0963]="after subscript",
+ [0x093E]="after subscript",
+ [0x0CB0]="after postscript",
+ [0x0CBF]="before subscript",
+ [0x0CC6]="before subscript",
+ [0x0CCC]="before subscript",
+ [0x0CBE]="before subscript",
+ [0x0CE2]="before subscript",
+ [0x0CE3]="before subscript",
+ [0x0CC1]="before subscript",
+ [0x0CC2]="before subscript",
+ [0x0CC3]="after subscript",
+ [0x0CC4]="after subscript",
+ [0x0CD5]="after subscript",
+ [0x0CD6]="after subscript",
+}
+local dflt_true={
+ dflt=true
+}
+local dev2_defaults={
+ dev2=dflt_true,
+}
+local deva_defaults={
+ dev2=dflt_true,
+ deva=dflt_true,
+}
+local false_flags={ false,false,false,false }
+local both_joiners_true={
+ [0x200C]=true,
+ [0x200D]=true,
+}
+local sequence_reorder_matras={
+ features={ dv01=dev2_defaults },
+ flags=false_flags,
+ name="dv01_reorder_matras",
+ order={ "dv01" },
+ type="devanagari_reorder_matras",
+ nofsteps=1,
+ steps={
+ {
+ osdstep=true,
+ coverage=pre_mark,
+ }
+ }
+}
+local sequence_reorder_reph={
+ features={ dv02=dev2_defaults },
+ flags=false_flags,
+ name="dv02_reorder_reph",
+ order={ "dv02" },
+ type="devanagari_reorder_reph",
+ nofsteps=1,
+ steps={
+ {
+ osdstep=true,
+ coverage={},
+ }
+ }
+}
+local sequence_reorder_pre_base_reordering_consonants={
+ features={ dv03=dev2_defaults },
+ flags=false_flags,
+ name="dv03_reorder_pre_base_reordering_consonants",
+ order={ "dv03" },
+ type="devanagari_reorder_pre_base_reordering_consonants",
+ nofsteps=1,
+ steps={
+ {
+ osdstep=true,
+ coverage={},
+ }
+ }
+}
+local sequence_remove_joiners={
+ features={ dv04=deva_defaults },
+ flags=false_flags,
+ name="dv04_remove_joiners",
+ order={ "dv04" },
+ type="devanagari_remove_joiners",
+ nofsteps=1,
+ steps={
+ { osdstep=true,
+ coverage=both_joiners_true,
+ },
+ }
+}
+local basic_shaping_forms={
+ nukt=true,
+ akhn=true,
+ rphf=true,
+ pref=true,
+ rkrf=true,
+ blwf=true,
+ half=true,
+ pstf=true,
+ vatu=true,
+ cjct=true,
+}
+local valid={
+ akhn=true,
+ rphf=true,
+ pref=true,
+ half=true,
+ blwf=true,
+ pstf=true,
+ pres=true,
+ blws=true,
+ psts=true,
+}
+local function initializedevanagi(tfmdata)
+ local script,language=otf.scriptandlanguage(tfmdata,attr)
+ if script=="deva" or script=="dev2" or script=="mlym" or script=="mlm2" then
+ local resources=tfmdata.resources
+ local devanagari=resources.devanagari
+ if not devanagari then
+ report_devanagari("adding devanagari features to font")
+ local gsubfeatures=resources.features.gsub
+ local sequences=resources.sequences
+ local sharedfeatures=tfmdata.shared.features
+ local lastmatch=0
+ for s=1,#sequences do
+ local features=sequences[s].features
+ if features then
+ for k,v in next,features do
+ if basic_shaping_forms[k] then
+ lastmatch=s
+ end
+ end
+ end
+ end
+ local insertindex=lastmatch+1
+ gsubfeatures["dv01"]=dev2_defaults
+ gsubfeatures["dv02"]=dev2_defaults
+ gsubfeatures["dv03"]=dev2_defaults
+ gsubfeatures["dv04"]=deva_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)
+ 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 seqsubset={}
+ local rephstep={
+ coverage={}
+ }
+ local devanagari={
+ reph=false,
+ vattu=false,
+ blwfcache=blwfcache,
+ 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
+ if features["rphf"] then
+ devanagari.reph=true
+ elseif features["blwf"] 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
+ if not blwfcache[k] then
+ blwfcache[k]=v
+ end
+ end
+ end
+ end
+ end
+ if valid[kind] then
+ for i=1,nofsteps do
+ local step=steps[i]
+ local coverage=step.coverage
+ if coverage then
+ local reph=false
+ if step.osdstep then
+ for k,v in next,ra do
+ local r=coverage[k]
+ if r then
+ local h=false
+ for k,v in next,halant do
+ local h=r[k]
+ if h then
+ reph=h.ligature or false
+ break
+ end
+ end
+ if reph then
+ break
+ end
+ end
+ end
+ else
+ end
+ seqsubset[#seqsubset+1]={ kind,coverage,reph }
+ end
+ end
+ end
+ if kind=="pref" then
+ local sequence=dataset[3]
+ 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
+ for k,v in next,h do
+ found=v and v.ligature
+ if found then
+ pre_base_reordering_consonants[k]=found
+ break
+ end
+ end
+ if found then
+ break
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ if script=="deva" then
+ sharedfeatures["dv04"]=true
+ elseif script=="dev2" then
+ sharedfeatures["dv01"]=true
+ sharedfeatures["dv02"]=true
+ sharedfeatures["dv03"]=true
+ sharedfeatures["dv04"]=true
+ elseif script=="mlym" then
+ sharedfeatures["pstf"]=true
+ elseif script=="mlm2" then
+ sharedfeatures["pstf"]=true
+ sharedfeatures["pref"]=true
+ sharedfeatures["dv03"]=true
+ gsubfeatures ["dv03"]=dev2_defaults
+ insert(sequences,insertindex,sequence_reorder_pre_base_reordering_consonants)
+ end
+ end
+ end
+end
+registerotffeature {
+ name="devanagari",
+ description="inject additional features",
+ default=true,
+ initializers={
+ node=initializedevanagi,
+ },
+}
+local function deva_initialize(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={},
+ }
+ 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" then
+ devanagaridata.vattu=true
+ devanagaridata.blwfcache=devanagari.blwfcache
+ end
+ end
+ end
+ end
+ return devanagaridata.reph,devanagaridata.vattu,devanagaridata.blwfcache
+end
+local function deva_reorder(head,start,stop,font,attr,nbspaces)
+ local reph,vattu,blwfcache=deva_initialize(font,attr)
+ 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)
+ free_node(current)
+ return head,stop,nbspaces
+ else
+ nbspaces=nbspaces+1
+ base=current
+ firstcons=current
+ lastcons=current
+ current=getnext(current)
+ if current~=stop then
+ if nukta[getchar(current)] then
+ current=getnext(current)
+ end
+ if getchar(current)==c_zwj then
+ if 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)
+ local n=copy_node(current)
+ copyinjection(n,current)
+ setchar(current,dotted_circle)
+ head=insert_node_after(head,current,n)
+ else
+ setchar(current,getchar(tempcurrent))
+ local freenode=getnext(current)
+ setlink(current,tmp)
+ free_node(freenode)
+ flush_list(tempcurrent)
+ if changestop then
+ stop=current
+ end
+ 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)
+ 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
+ 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 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
+ break
+ end
+ cn=getnext(cn)
+ 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
+ elseif char==c_nbsp then
+ nbspaces=nbspaces+1
+ cns=current
+ local next=getnext(cns)
+ if halant[getchar(next)] then
+ cns=next
+ end
+ end
+ end
+ current=getnext(current)
+ end
+ end
+ if getchar(base)==c_nbsp then
+ nbspaces=nbspaces-1
+ head=remove_node(head,base)
+ free_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] and not getprop(current,a_state) 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
+ end
+ current=next
+ end
+ return head,start,true
+end
+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)
+ while current do
+ local char=ischar(current,font)
+ if char and getprop(current,a_syllabe)==startattr then
+ if halant[char] and not getprop(current,a_state) then
+ local next=getnext(current)
+ if next then
+ local nextchar=ischar(next,font)
+ 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
+ if not startnext then
+ current=getnext(start)
+ while current do
+ local char=ischar(current,font)
+ 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)
+ local prev=getprev(current)
+ setlink(prev,start)
+ setlink(start,current)
+ start=startnext
+ startattr=getprop(start,a_syllabe)
+ break
+ end
+ current=getnext(current)
+ else
+ break
+ end
+ end
+ end
+ if not startnext then
+ current=getnext(start)
+ local c=nil
+ while current do
+ local char=ischar(current,font)
+ if char and getprop(current,a_syllabe)==startattr then
+ if not c and mark_above_below_post[char] and reorder_class[char]~="after subscript" then
+ c=current
+ end
+ current=getnext(current)
+ else
+ break
+ end
+ end
+ if c then
+ startnext=getnext(start)
+ head=remove_node(head,start)
+ local prev=getprev(c)
+ setlink(prev,start)
+ setlink(start,c)
+ start=startnext
+ startattr=getprop(start,a_syllabe)
+ end
+ end
+ if not startnext then
+ current=start
+ local next=getnext(current)
+ while next do
+ local nextchar=ischar(next,font)
+ 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)
+ local next=getnext(current)
+ setlink(start,next)
+ setlink(current,"next",start)
+ start=startnext
+ end
+ end
+ return head,start,true
+end
+function handlers.devanagari_reorder_pre_base_reordering_consonants(head,start)
+ local current=start
+ local startnext=nil
+ local startprev=nil
+ local startfont=getfont(start)
+ local startattr=getprop(start,a_syllabe)
+ while current do
+ local char=ischar(current,font)
+ if char and getprop(current,a_syllabe)==startattr then
+ local next=getnext(current)
+ if halant[char] and not getprop(current,a_state) then
+ if next then
+ local nextchar=ischar(next,font)
+ if nextchar and getprop(next,a_syllabe)==startattr then
+ if nextchar==c_zwnj or nextchar==c_zwj then
+ current=next
+ next=getnext(current)
+ end
+ end
+ end
+ startnext=getnext(start)
+ removenode(start,start)
+ setlink(start,next)
+ setlink(current,start)
+ start=startnext
+ break
+ end
+ current=next
+ else
+ break
+ end
+ end
+ if not startnext then
+ current=getnext(start)
+ startattr=getprop(start,a_syllabe)
+ while current do
+ local char=ischar(current,font)
+ if char and getprop(current,a_syllabe)==startattr then
+ if not consonant[char] and getprop(current,a_state) then
+ startnext=getnext(start)
+ removenode(start,start)
+ local prev=getprev(current)
+ setlink(start,prev)
+ setlink(start,current)
+ start=startnext
+ break
+ end
+ current=getnext(current)
+ else
+ break
+ end
+ end
+ 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 dev2_initialize(font,attr)
+ local devanagari=fontdata[font].resources.devanagari
+ if devanagari then
+ return devanagari.seqsubset or {},devanagari.reorderreph or {}
+ else
+ return {},{}
+ end
+end
+local function dev2_reorder(head,start,stop,font,attr,nbspaces)
+ local seqsubset,reorderreph=dev2_initialize(font,attr)
+ local reph=false
+ local halfpos=nil
+ local basepos=nil
+ local subpos=nil
+ local postpos=nil
+ local locl={}
+ for i=1,#seqsubset do
+ local subset=seqsubset[i]
+ local kind=subset[1]
+ local lookupcache=subset[2]
+ if kind=="rphf" then
+ for k,v in next,ra do
+ local r=lookupcache[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 reph then
+ break
+ end
+ end
+ end
+ local current=start
+ local last=getnext(stop)
+ while current~=last do
+ if current~=stop then
+ local c=locl[current] or getchar(current)
+ local found=lookupcache[c]
+ if found then
+ local next=getnext(current)
+ local n=locl[next] or getchar(next)
+ if found[n] then
+ local afternext=next~=stop and getnext(next)
+ if afternext and zw_char[getchar(afternext)] then
+ current=next
+ current=getnext(current)
+ 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=locl[current] or getchar(current)
+ local found=lookupcache[c]
+ if found then
+ local next=getnext(current)
+ local n=locl[next] or getchar(next)
+ if found[n] then
+ setprop(current,a_state,s_pref)
+ setprop(next,a_state,s_pref)
+ current=next
+ 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=locl[current] or getchar(current)
+ local found=lookupcache[c]
+ if found then
+ local next=getnext(current)
+ local n=locl[next] or getchar(next)
+ if found[n] then
+ if next~=stop and getchar(getnext(next))==c_zwnj then
+ current=next
+ else
+ 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" then
+ local current=start
+ local last=getnext(stop)
+ while current~=last do
+ if current~=stop then
+ local c=locl[current] or getchar(current)
+ local found=lookupcache[c]
+ if found then
+ local next=getnext(current)
+ local n=locl[next] or getchar(next)
+ if found[n] then
+ setprop(current,a_state,s_blwf)
+ setprop(next,a_state,s_blwf)
+ current=next
+ subpos=current
+ 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=locl[current] or getchar(current)
+ local found=lookupcache[c]
+ if found then
+ local next=getnext(current)
+ local n=locl[next] or getchar(next)
+ if found[n] then
+ setprop(current,a_state,s_pstf)
+ setprop(next,a_state,s_pstf)
+ current=next
+ postpos=current
+ end
+ end
+ end
+ current=getnext(current)
+ end
+ end
+ end
+ reorderreph.coverage={ [reph]=true }
+ 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)
+ free_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,nil)
+ 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)
+ local nc=copy_node(current)
+ copyinjection(nc,current)
+ setchar(current,dotted_circle)
+ head=insert_node_after(head,current,nc)
+ 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_pref or a==s_blwf or a==s_pstf) 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,target,cn=locl[current] or getchar(current),nil,getnext(current)
+ local tpm=twopart_mark[char]
+ if tpm then
+ 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)
+ 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
+ if halfpos==start then
+ if head==start then
+ head=current
+ end
+ start=current
+ end
+ local prev=getprev(halfpos)
+ setlink(prev,current)
+ setlink(current,halfpos)
+ halfpos=current
+ 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
+ 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(next,prev)
+ if current==stop then
+ stop=prev
+ end
+ local next=getnext(target)
+ setlink(current,next)
+ setlink(target,current)
+ end
+ end
+ end
+ current=cn
+ end
+ local current,c=start,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
+ local prev=getprev(c)
+ setlink(next,prev)
+ 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
+ nbspaces=nbspaces-1
+ head=remove_node(head,base)
+ free_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)
+ 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[vv] 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
+ if dependent_vowel[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 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 v==c_anudatta 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
+ if dependent_vowel[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 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 inject_syntax_error(head,current,mark)
+ local signal=copy_node(current)
+ copyinjection(signal,current)
+ if mark==pre_mark then
+ setchar(signal,dotted_circle)
+ else
+ setchar(current,dotted_circle)
+ end
+ return insert_node_after(head,current,signal)
+end
+function methods.deva(head,font,attr)
+ head=tonut(head)
+ local current=head
+ local start=true
+ local done=false
+ local nbspaces=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=deva_reorder(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
+ head,current,nbspaces=deva_reorder(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
+ local mark=mark_four[char]
+ if mark then
+ head,current=inject_syntax_error(head,current,mark)
+ end
+ current=getnext(current)
+ end
+ end
+ else
+ current=getnext(current)
+ end
+ start=false
+ end
+ if nbspaces>0 then
+ head=replace_all_nbsp(head)
+ end
+ head=tonode(head)
+ return head,done
+end
+function methods.dev2(head,font,attr)
+ head=tonut(head)
+ 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=dev2_reorder(head,syllablestart,syllableend,font,attr,nbspaces)
+ end
+ if not syllableend 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,mark)
+ end
+ end
+ end
+ start=false
+ current=getnext(current)
+ end
+ if nbspaces>0 then
+ head=replace_all_nbsp(head)
+ end
+ head=tonode(head)
+ return head,done
+end
+methods.mlym=methods.deva
+methods.mlm2=methods.dev2
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “font-osd”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-lua” 1fbfdf7b689b2bdfd0e3bb9bf74ce136] ---
+
+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 --- [luaotfload, fontloader-2016-04-21.lua scope for “font-lua”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-def” 3c71c27300a8cb5c29f5d278d2049fb6] ---
+
+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 format,gmatch,match,find,lower,gsub=string.format,string.gmatch,string.match,string.find,string.lower,string.gsub
+local tostring,next=tostring,next
+local lpegmatch=lpeg.match
+local suffixonly,removesuffix=file.suffix,file.removesuffix
+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")
+trackers.register("fonts.all","fonts.*","otf.*","afm.*","tfm.*")
+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 splitter,splitspecifiers=nil,""
+local P,C,S,Cc=lpeg.P,lpeg.C,lpeg.S,lpeg.Cc
+local left=P("(")
+local right=P(")")
+local colon=P(":")
+local space=P(" ")
+definers.defaultlookup="file"
+local prefixpattern=P(false)
+local function addspecifier(symbol)
+ splitspecifiers=splitspecifiers..symbol
+ local method=S(splitspecifiers)
+ local lookup=C(prefixpattern)*colon
+ local sub=left*C(P(1-left-right-method)^1)*right
+ local specification=C(method)*C(P(1)^1)
+ local name=C((1-sub-specification)^1)
+ splitter=P((lookup+Cc(""))*name*(sub+Cc(""))*(specification+Cc("")))
+end
+local function addlookup(str,default)
+ prefixpattern=prefixpattern+P(str)
+end
+definers.addlookup=addlookup
+addlookup("file")
+addlookup("name")
+addlookup("spec")
+local function getspecification(str)
+ return lpegmatch(splitter,str or "")
+end
+definers.getspecification=getspecification
+function definers.registersplit(symbol,action,verbosename)
+ addspecifier(symbol)
+ variants[symbol]=action
+ if verbosename then
+ variants[verbosename]=action
+ end
+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
+function definers.analyze(specification,size)
+ local lookup,name,sub,method,detail=getspecification(specification or "")
+ return makespecification(specification,lookup,name,sub,method,detail,size)
+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=resolve(specification.name,specification.sub,specification)
+ if resolved then
+ specification.resolved=resolved
+ specification.sub=sub
+ specification.subindex=subindex
+ 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=format("%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
+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
+ 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.checkvirtualids()
+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
+ constructors.checkvirtualids(tfmdata)
+ 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,properties.name,parameters.size,properties.encodingbytes,
+ properties.encodingname,properties.fullname,file.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 --- [luaotfload, fontloader-2016-04-21.lua scope for “font-def”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “fonts-ext” 0eee87fb26b7d135da88ac0a43a8037a] ---
+
+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
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+end
+local fonts=fonts
+local otffeatures=fonts.constructors.newfeatures("otf")
+local function initializeitlc(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
+otffeatures.register {
+ name="itlc",
+ description="italic correction",
+ initializers={
+ base=initializeitlc,
+ node=initializeitlc,
+ }
+}
+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
+ tfmdata.parameters.slantfactor=value
+end
+otffeatures.register {
+ name="slant",
+ description="slant glyphs",
+ initializers={
+ base=initializeslant,
+ node=initializeslant,
+ }
+}
+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
+ tfmdata.parameters.extendfactor=value
+end
+otffeatures.register {
+ name="extend",
+ description="scale glyphs horizontally",
+ initializers={
+ base=initializeextend,
+ node=initializeextend,
+ }
+}
+fonts.protrusions=fonts.protrusions or {}
+fonts.protrusions.setups=fonts.protrusions.setups or {}
+local setups=fonts.protrusions.setups
+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
+otffeatures.register {
+ name="protrusion",
+ description="shift characters into the left and or right margin",
+ initializers={
+ base=initializeprotrusion,
+ node=initializeprotrusion,
+ }
+}
+fonts.expansions=fonts.expansions or {}
+fonts.expansions.setups=fonts.expansions.setups or {}
+local setups=fonts.expansions.setups
+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
+otffeatures.register {
+ name="expansion",
+ description="apply hz optimization",
+ initializers={
+ base=initializeexpansion,
+ node=initializeexpansion,
+ }
+}
+function fonts.loggers.onetimemessage() end
+local byte=string.byte
+fonts.expansions.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,
+}
+fonts.protrusions.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 },
+}
+fonts.handlers.otf.features.normalize=function(t)
+ if t.rand then
+ t.rand="random"
+ end
+ return t
+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 reencode(tfmdata,value)
+ tfmdata.postprocessors=tfmdata.postprocessors or {}
+ table.insert(tfmdata.postprocessors,
+ function(tfmdata)
+ return specialreencode(tfmdata,value)
+ end
+ )
+end
+otffeatures.register {
+ name="reencode",
+ description="reencode characters",
+ manipulators={
+ base=reencode,
+ node=reencode,
+ }
+}
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “fonts-ext”] ---
+
+
+do --- [luaotfload, fontloader-2016-04-21.lua scope for “font-gbn” 1d9dd4d7f55c8431d5fceeeb4e729027] ---
+
+if not modules then modules={} end modules ['font-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
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+end
+local fonts=fonts
+local nodes=nodes
+local nuts=nodes.nuts
+local traverse_id=nuts.traverse_id
+local remove_node=nuts.remove
+local free_node=nuts.free
+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 ligaturing=nuts.ligaturing
+local kerning=nuts.kerning
+local basemodepass=true
+local function l_warning() texio.write_nl("warning: node.ligaturing called directly") l_warning=nil end
+local function k_warning() texio.write_nl("warning: node.kerning called 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 nodes.handlers.setbasemodepass(v)
+ basemodepass=v
+end
+function nodes.handlers.nodepass(head)
+ local fontdata=fonts.hashes.identifiers
+ if fontdata then
+ local nuthead=tonut(head)
+ local usedfonts={}
+ local basefonts={}
+ local prevfont=nil
+ local basefont=nil
+ local variants=nil
+ local redundant=nil
+ for n in traverse_id(glyph_code,nuthead) 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
+ 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)
+ if not redundant then
+ redundant={ n }
+ else
+ redundant[#redundant+1]=n
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ if redundant then
+ for i=1,#redundant do
+ local r=redundant[i]
+ local p,n=getboth(r)
+ if r==nuthead then
+ nuthead=n
+ setprev(n)
+ else
+ setlink(p,n)
+ end
+ if b>0 then
+ for i=1,b 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
+ free_node(r)
+ end
+ end
+ for d in traverse_id(disc_code,nuthead) 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
+ 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) or head
+ end
+ end
+ end
+ if basemodepass and #basefonts>0 then
+ for i=1,#basefonts do
+ local range=basefonts[i]
+ local start=range[1]
+ local stop=range[2]
+ if start then
+ local front=nuthead==start
+ local prev,next
+ if stop then
+ next=getnext(stop)
+ start,stop=ligaturing(start,stop)
+ start,stop=kerning(start,stop)
+ else
+ prev=getprev(start)
+ start=ligaturing(start)
+ start=kerning(start)
+ end
+ if prev then
+ setlink(prev,start)
+ end
+ if next then
+ setlink(stop,next)
+ end
+ if front and nuthead~=start then
+ head=tonode(start)
+ end
+ end
+ end
+ end
+ return head,true
+ else
+ return head,false
+ end
+end
+function nodes.handlers.basepass(head)
+ if not basemodepass then
+ head=n_ligaturing(head)
+ head=n_kerning(head)
+ end
+ return head,true
+end
+local nodepass=nodes.handlers.nodepass
+local basepass=nodes.handlers.basepass
+local injectpass=nodes.injections.handler
+local protectpass=nodes.handlers.protectglyphs
+function nodes.simple_font_handler(head)
+ if head then
+ head=nodepass(head)
+ head=injectpass(head)
+ if not basemodepass then
+ head=basepass(head)
+ end
+ protectpass(head)
+ return head,true
+ else
+ return head,false
+ end
+end
+
+end --- [luaotfload, fontloader-2016-04-21.lua scope for “font-gbn”] ---
+
+
+--- vim:ft=lua:sw=2:ts=8:et:tw=79