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|
if not modules then modules = { } end modules ['lxml-tst'] = {
version = 1.001,
comment = "companion to lxml-ini.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local utf = unicode.utf8
local utfchar = utf.char
local concat, insert, remove, gsub, find = table.concat, table.insert, table.remove
local format, sub, gsub, find, gmatch, match = string.format, string.sub, string.gsub, string.find, string.gmatch, string.match
local type, next, tonumber, tostring = type, next, tonumber, tostring
local lpegmatch = lpeg.match
local P, S, C, Cc = lpeg.P, lpeg.S, lpeg.C, lpeg.Cc
if not tex and not tex.sprint then
tex = {
sprint = function(catcodes,...) texio.write(table.concat{...}) end,
print = function(catcodes,...) texio.write(table.concat{...}) end,
write = function( ...) texio.write(table.concat{...}) end,
}
commands = {
writestatus = logs.report
}
resolvers.loadbinfile = function(filename) return true, io.loaddata(filename) end
end
local texsprint, texprint, texwrite = tex.sprint, tex.print, tex.write
local texcatcodes, ctxcatcodes, vrbcatcodes, notcatcodes = tex.texcatcodes, tex.ctxcatcodes, tex.vrbcatcodes, tex.notcatcodes
local xmlelements, xmlcollected, xmlsetproperty = xml.elements, xml.collected, xml.setproperty
local xmlparseapply, xmlwithelements = xml.parse_apply, xml.withelements
local xmlserialize, xmlcollect, xmltext, xmltostring = xml.serialize, xml.collect, xml.text, xml.tostring
local variables = (interfaces and interfaces.variables) or { }
local starttiming, stoptiming = statistics.starttiming, statistics.stoptiming
local trace_setups = false trackers.register("lxml.setups", function(v) trace_setups = v end)
local trace_loading = false trackers.register("lxml.loading", function(v) trace_loading = v end)
local trace_access = false trackers.register("lxml.access", function(v) trace_access = v end)
local trace_comments = false trackers.register("lxml.comments", function(v) trace_comments = v end)
lxml = lxml or { }
lxml.loaded = lxml.loaded or { }
local loaded = lxml.loaded
-- print(contextdirective("context-mathml-directive function reduction yes "))
-- print(contextdirective("context-mathml-directive function "))
xml.defaultprotocol = "tex"
local finalizers = xml.finalizers
finalizers.xml = finalizers.xml or { }
finalizers.tex = finalizers.tex or { }
-- this might look inefficient but it's actually rather efficient
-- because we avoid tokenization of leading spaces and xml can be
-- rather verbose (indented)
local newline = lpeg.patterns.newline
local space = lpeg.patterns.spacer
local ampersand = P("&")
local semicolon = P(";")
local spacing = newline * space^0
local content = C((1-spacing-ampersand)^1)
local verbose = C((1-(space+newline))^1)
local entity = ampersand * C((1-semicolon)^1) * semicolon
local xmltextcapture = (
space^0 * newline^2 * Cc("") / texprint + -- better ^-2 ?
space^0 * newline * space^0 * Cc(" ") / texsprint +
content / function(str) return texsprint(notcatcodes,str) end + -- was just texsprint, current catcodes regime is notcatcodes
entity / xml.resolved_entity
)^0
local ctxtextcapture = (
space^0 * newline^2 * Cc("") / texprint + -- better ^-2 ?
space^0 * newline * space^0 * Cc(" ") / texsprint +
content / function(str) return texsprint(ctxcatcodes,str) end + -- was just texsprint, current catcodes regime is notcatcodes
entity / xml.resolved_entity
)^0
local forceraw, rawroot = false, nil
function lxml.startraw()
forceraw = true
end
function lxml.stopraw()
forceraw = false
end
function lxml.rawroot()
return rawroot
end
--~ function lxml.rawpath(rootid)
--~ if rawroot and type(rawroot) == "table" then
--~ local text, path, rp
--~ if not rawroot.dt then
--~ text, path, rp = "text", "", rawroot[0]
--~ else
--~ path, rp = "tree", "", rawroot.__p__
--~ end
--~ while rp do
--~ local rptg = rp.tg
--~ if rptg then
--~ path = rptg .. "/" .. path
--~ end
--~ rp = rp.__p__
--~ end
--~ return { rootid, "/" .. path, text }
--~ end
--~ end
-- cdata
local linecommand = "\\obeyedline"
local spacecommand = "\\obeyedspace" -- "\\strut\\obeyedspace"
local beforecommand = ""
local aftercommand = ""
local xmlverbosecapture = (
newline / function( ) texsprint(texcatcodes,linecommand,"{}") end +
verbose / function(s) texsprint(vrbcatcodes,s) end +
space / function( ) texsprint(texcatcodes,spacecommand,"{}") end
)^0
local function toverbatim(str)
if beforecommand then texsprint(texcatcodes,beforecommand,"{}") end
lpegmatch(xmlverbosecapture,str)
if aftercommand then texsprint(texcatcodes,aftercommand,"{}") end
end
function lxml.set_verbatim(before,after,obeyedline,obeyedspace)
beforecommand, aftercommand, linecommand, spacecommand = before, after, obeyedline, obeyedspace
end
local obeycdata = true
function lxml.set_cdata()
obeycdata = true
end
function lxml.reset_cdata()
obeycdata = false
end
-- cdata and verbatim
lxml.set_verbatim("\\xmlcdatabefore", "\\xmlcdataafter", "\\xmlcdataobeyedline", "\\xmlcdataobeyedspace")
-- local capture = (space^0*newline)^0 * capture * (space+newline)^0 * -1
function lxml.toverbatim(str)
if beforecommand then texsprint(texcatcodes,beforecommand,"{}") end
-- todo: add this to capture
str = gsub(str,"^[ \t]+[\n\r]+","")
str = gsub(str,"[ \t\n\r]+$","")
lpegmatch(xmlverbosecapture,str)
if aftercommand then texsprint(texcatcodes,aftercommand,"{}") end
end
-- storage
function lxml.store(id,root,filename)
loaded[id] = root
xmlsetproperty(root,"name",id)
if filename then
xmlsetproperty(root,"filename",filename)
end
end
local splitter = lpeg.splitat("::")
lxml.idsplitter = splitter
function lxml.splitid(id)
local d, i = lpegmatch(splitter,id)
if d then
return d, i
else
return "", id
end
end
local function get_id(id, qualified)
if id then
local lid = loaded[id]
if lid then
return lid
elseif type(id) == "table" then
return id
else
local d, i = lpegmatch(splitter,id)
if d then
local ld = loaded[d]
if ld then
local ldi = ld.index
if ldi then
local root = ldi[tonumber(i)]
if root then
if qualified then -- we need this else two args that confuse others
return root, d
else
return root
end
elseif trace_access then
logs.report("lxml","'%s' has no index entry '%s'",d,i)
end
elseif trace_access then
logs.report("lxml","'%s' has no index",d)
end
elseif trace_access then
logs.report("lxml","'%s' is not loaded",d)
end
elseif trace_access then
logs.report("lxml","'%s' is not loaded",i)
end
end
elseif trace_access then
logs.report("lxml","invalid id (nil)")
end
end
lxml.id = get_id
lxml.get_id = get_id
function lxml.root(id)
return loaded[id]
end
-- index
local nofindices = 0
local function addindex(name,check_sum,force)
local root = get_id(name)
if root and (not root.index or force) then -- weird, only called once
local n, index, maxindex, check = 0, root.index or { }, root.maxindex or 0, root.check or { }
local function nest(root)
local dt = root.dt
if not root.ix then
maxindex = maxindex + 1
root.ix = maxindex
check[maxindex] = root.tg -- still needed ?
index[maxindex] = root
n = n + 1
end
if dt then
for k=1,#dt do
local dk = dt[k]
if type(dk) == "table" then
nest(dk)
end
end
end
end
nest(root)
nofindices = nofindices + n
--
if type(name) ~= "string" then
name = "unknown"
end
root.index = index
root.maxindex = maxindex
if trace_access then
logs.report("lxml","%s indexed, %s nodes",tostring(name),maxindex)
end
end
end
lxml.addindex = addindex
-- another cache
local function lxmlparseapply(id,pattern) -- better inline, saves call
return xmlparseapply({ get_id(id) }, pattern)
end
lxml.filter = lxmlparseapply
function lxml.filterlist(list,pattern)
for s in gmatch(list,"[^, ]+") do -- we could cache a table
lxmlparseapply(s,pattern)
end
end
lxml["function"] = function(id,name)
local f = xml.functions[name]
return f and f(get_id(id))
end
-- rather new, indexed storage (backward refs), maybe i will merge this
function lxml.checkindex(name)
local root = get_id(name)
return (root and root.index) or 0
end
function lxml.withindex(name,n,command) -- will change as name is always there now
local i, p = lpegmatch(splitter,n)
if p then
texsprint(ctxcatcodes,"\\xmlw{",command,"}{",n,"}")
else
texsprint(ctxcatcodes,"\\xmlw{",command,"}{",name,"::",n,"}")
end
end
function lxml.getindex(name,n) -- will change as name is always there now
local i, p = lpegmatch(splitter,n)
if p then
texsprint(ctxcatcodes,n)
else
texsprint(ctxcatcodes,name,"::",n)
end
end
-- loading (to be redone, no overload)
xml.originalload = xml.originalload or xml.load
local noffiles, nofconverted = 0, 0
function xml.load(filename,settings)
noffiles, nofconverted = noffiles + 1, nofconverted + 1
starttiming(xml)
local ok, data = resolvers.loadbinfile(filename)
local xmltable = xml.convert((ok and data) or "",settings)
stoptiming(xml)
return xmltable
end
local entities = xml.entities
local function entityconverter(id,str)
return entities[str] and "&"..str..";" -- feed back into tex end later
end
function lxml.convert(id,data,entities,compress)
local settings = {
unify_predefined_entities = true,
}
if compress and compress == variables.yes then
settings.strip_cm_and_dt = true
end
if entities and entities == variables.yes then
settings.utfize_entities = true
settings.resolve_entities = function (str) return entityconverter(id,str) end
end
return xml.convert(data,settings)
end
function lxml.load(id,filename,compress,entities)
filename = commands.preparedfile(filename)
if trace_loading then
commands.writestatus("lxml","loading file '%s' as '%s'",filename,id)
end
noffiles, nofconverted = noffiles + 1, nofconverted + 1
-- local xmltable = xml.load(filename)
local ok, data = resolvers.loadbinfile(filename)
local xmltable = lxml.convert(id,(ok and data) or "",compress,entities)
lxml.store(id,xmltable,filename)
return xmltable, filename
end
function lxml.register(id,xmltable,filename)
lxml.store(id,xmltable,filename)
return xmltable
end
function lxml.include(id,pattern,attribute,recurse)
starttiming(xml)
local root = get_id(id)
xml.include(root,pattern,attribute,recurse,function(filename)
if filename then
filename = commands.preparedfile(filename)
if file.dirname(filename) == "" and root.filename then
local dn = file.dirname(root.filename)
if dn ~= "" then
filename = file.join(dn,filename)
end
end
if trace_loading then
commands.writestatus("lxml","including file: %s",filename)
end
noffiles, nofconverted = noffiles + 1, nofconverted + 1
return resolvers.loadtexfile(filename) or ""
else
return ""
end
end)
stoptiming(xml)
end
function xml.getbuffer(name,compress,entities) -- we need to make sure that commands are processed
if not name or name == "" then
name = tex.jobname
end
nofconverted = nofconverted + 1
xmltostring(lxml.convert(name,concat(buffers.data[name] or {},""),compress,entities))
end
function lxml.loadbuffer(id,name,compress,entities)
if not name or name == "" then
name = tex.jobname
end
starttiming(xml)
nofconverted = nofconverted + 1
local xmltable = lxml.convert(id,buffers.collect(name or id,"\n"),compress,entities)
lxml.store(id,xmltable)
stoptiming(xml)
return xmltable, name or id
end
function lxml.loaddata(id,str,compress,entities)
starttiming(xml)
nofconverted = nofconverted + 1
local xmltable = lxml.convert(id,str or "",compress,entities)
lxml.store(id,xmltable)
stoptiming(xml)
return xmltable, id
end
function lxml.loadregistered(id)
return loaded[id], id
end
-- e.command:
--
-- string : setup
-- true : text (no <self></self>)
-- false : ignore
-- function : call
local function tex_doctype(e,handlers)
-- ignore
end
local function tex_comment(e,handlers)
if trace_comments then
logs.report("lxml","comment: %s",e.dt[1])
end
end
local default_element_handler = xml.gethandlers("verbose").functions["@el@"]
local function tex_element(e,handlers)
local command = e.command
if command == nil then
default_element_handler(e,handlers)
elseif command == true then
-- text (no <self></self>) / so, no mkii fallback then
handlers.serialize(e.dt,handlers)
elseif command == false then
-- ignore
else
local tc = type(command)
if tc == "string" then
local rootname, ix = e.name, e.ix
if rootname then
if not ix then
addindex(rootname,false,true)
ix = e.ix
end
texsprint(ctxcatcodes,"\\xmlw{",command,"}{",rootname,"::",ix,"}")
else
logs.report("lxml", "fatal error: no index for '%s'",command)
texsprint(ctxcatcodes,"\\xmlw{",command,"}{",ix or 0,"}")
end
elseif tc == "function" then
command(e)
end
end
end
local pihandlers = { } xml.pihandlers = pihandlers
local kind = P("context-") * C((1-P("-"))^1) * P("-directive")
local space = S(" \n\r")
local spaces = space^0
local class = C((1-space)^0)
local key = class
local value = C(P(1-(space * -1))^0)
local parser = kind * spaces * class * spaces * key * spaces * value
pihandlers[#pihandlers+1] = function(str)
-- local kind, class, key, value = lpegmatch(parser,str)
if str then
local a, b, c, d = lpegmatch(parser,str)
if d then
texsprint(ctxcatcodes,"\\xmlcontextdirective{",a",}{",b,"}{",c,"}{",d,"}")
end
end
end
local function tex_pi(e,handlers)
local str = e.dt[1]
for i=1,#pihandlers do
pihandlers[i](str)
end
end
local function tex_cdata(e,handlers)
if obeycdata then
toverbatim(e.dt[1])
end
end
local function tex_text(e)
lpegmatch(xmltextcapture,e)
end
local function ctx_text(e)
lpegmatch(ctxtextcapture,e)
end
local function tex_handle(...)
-- logs.report("lxml", "error while flushing: %s", concat { ... })
texsprint(...) -- notcatcodes is active anyway
end
local xmltexhandler = xml.newhandlers {
name = "tex",
handle = tex_handle,
functions = {
-- ["@dc@"] = tex_document,
["@dt@"] = tex_doctype,
-- ["@rt@"] = tex_root,
["@el@"] = tex_element,
["@pi@"] = tex_pi,
["@cm@"] = tex_comment,
["@cd@"] = tex_cdata,
["@tx@"] = tex_text,
}
}
lxml.xmltexhandler = xmltexhandler
function lxml.serialize(root)
xmlserialize(root,xmltexhandler)
end
function lxml.setaction(id,pattern,action)
local collected = lxmlparseapply(id,pattern)
if collected then
for c=1,#collected do
collected[c].command = action
end
end
end
local function sprint(root)
if root then
local tr = type(root)
if tr == "string" then -- can also be result of lpath
-- rawroot = false
lpegmatch(xmltextcapture,root)
elseif tr == "table" then
if forceraw then
rawroot = root
texwrite(xmltostring(root))
else
xmlserialize(root,xmltexhandler)
end
end
end
end
local function tprint(root) -- we can move sprint inline
local tr = type(root)
if tr == "table" then
local n = #root
if n == 0 then
-- skip
else
for i=1,n do
sprint(root[i])
end
end
elseif tr == "string" then
lpegmatch(xmltextcapture,root)
end
end
local function cprint(root) -- content
if not root then
-- rawroot = false
-- quit
elseif type(root) == 'string' then
-- rawroot = false
lpegmatch(xmltextcapture,root)
else
local rootdt = root.dt
if forceraw then
rawroot = root
texwrite(xmltostring(rootdt or root))
else
xmlserialize(rootdt or root,xmltexhandler)
end
end
end
xml.sprint = sprint local xmlsprint = sprint -- redo these names
xml.tprint = tprint local xmltprint = tprint
xml.cprint = cprint local xmlcprint = cprint
-- now we can flush
function lxml.main(id)
xmlserialize(get_id(id),xmltexhandler) -- the real root (@rt@)
end
--~ -- lines (untested)
--~
--~ local buffer = { }
--~
--~ local xmllinescapture = (
--~ newline^2 / function() buffer[#buffer+1] = "" end +
--~ newline / function() buffer[#buffer] = buffer[#buffer] .. " " end +
--~ content / function(s) buffer[#buffer] = buffer[#buffer] .. s end
--~ )^0
--~
--~ local xmllineshandler = table.copy(xmltexhandler)
--~
--~ xmllineshandler.handle = function(...) lpegmatch(xmllinescapture,concat{ ... }) end
--~
--~ function lines(root)
--~ if not root then
--~ -- rawroot = false
--~ -- quit
--~ elseif type(root) == 'string' then
--~ -- rawroot = false
--~ lpegmatch(xmllinescapture,root)
--~ elseif next(root) then -- tr == 'table'
--~ xmlserialize(root,xmllineshandler)
--~ end
--~ end
--~
--~ function xml.lines(root) -- used at all?
--~ buffer = { "" }
--~ lines(root)
--~ return result
--~ end
local function to_text(e)
if e.command == nil then
local etg = e.tg
if etg and e.special and etg ~= "@rt@" then
e.command = false -- i.e. skip
else
e.command = true -- i.e. no <self></self>
end
end
end
local function to_none(e)
if e.command == nil then
e.command = false -- i.e. skip
end
end
-- setups
local setups = { }
function lxml.set_command_to_text(id)
xmlwithelements(get_id(id),to_text)
end
function lxml.set_command_to_none(id)
xmlwithelements(get_id(id),to_none)
end
function lxml.installsetup(what,document,setup,where)
document = document or "*"
local sd = setups[document]
if not sd then sd = { } setups[document] = sd end
for k=1,#sd do
if sd[k] == setup then sd[k] = nil break end
end
if what == 1 then
if trace_loading then
commands.writestatus("lxml","prepending setup %s for %s",setup,document)
end
insert(sd,1,setup)
elseif what == 2 then
if trace_loading then
commands.writestatus("lxml","appending setup %s for %s",setup,document)
end
insert(sd,setup)
elseif what == 3 then
if trace_loading then
commands.writestatus("lxml","inserting setup %s for %s before %s",setup,document,where)
end
table.insert_before_value(sd,setup,where)
elseif what == 4 then
if trace_loading then
commands.writestatus("lxml","inserting setup %s for %s after %s",setup,document,where)
end
table.insert_after_value(sd,setup,where)
end
end
function lxml.flushsetups(id,...)
local done, list = { }, { ... }
for i=1,#list do
local document = list[i]
local sd = setups[document]
if sd then
for k=1,#sd do
local v= sd[k]
if not done[v] then
if trace_loading then
commands.writestatus("lxml","applying setup %02i = %s to %s",k,v,document)
end
texsprint(ctxcatcodes,"\\xmlsetup{",id,"}{",v,"}")
done[v] = true
end
end
elseif trace_loading then
commands.writestatus("lxml","no setups for %s",document)
end
end
end
function lxml.resetsetups(document)
if trace_loading then
commands.writestatus("lxml","resetting all setups for %s",document)
end
setups[document] = { }
end
function lxml.removesetup(document,setup)
local s = setups[document]
if s then
for i=1,#s do
if s[i] == setup then
if trace_loading then
commands.writestatus("lxml","removing setup %s for %s",setup,document)
end
remove(t,i)
break
end
end
end
end
function lxml.setsetup(id,pattern,setup)
if not setup or setup == "" or setup == "*" or setup == "-" or setup == "+" then
local collected = lxmlparseapply(id,pattern)
if collected then
if trace_setups then
for c=1, #collected do
local e = collected[c]
local ix = e.ix or 0
if setup == "-" then
e.command = false
logs.report("lxml","lpath matched (a) %5i: %s = %s -> skipped",c,ix,setup)
elseif setup == "+" then
e.command = true
logs.report("lxml","lpath matched (b) %5i: %s = %s -> text",c,ix,setup)
else
local tg = e.tg
if tg then -- to be sure
e.command = tg
local ns = e.rn or e.ns
if ns == "" then
logs.report("lxml","lpath matched (c) %5i: %s = %s -> %s",c,ix,tg,tg)
else
logs.report("lxml","lpath matched (d) %5i: %s = %s:%s -> %s",c,ix,ns,tg,tg)
end
end
end
end
else
for c=1, #collected do
local e = collected[c]
if setup == "-" then
e.command = false
elseif setup == "+" then
e.command = true
else
e.command = e.tg
end
end
end
elseif trace_setups then
logs.report("lxml","no lpath matches for %s",pattern)
end
else
local a, b = match(setup,"^(.+:)([%*%-])$")
if a and b then
local collected = lxmlparseapply(id,pattern)
if collected then
if trace_setups then
for c=1, #collected do
local e = collected[c]
local ns, tg, ix = e.rn or e.ns, e.tg, e.ix or 0
if b == "-" then
e.command = false
if ns == "" then
logs.report("lxml","lpath matched (e) %5i: %s = %s -> skipped",c,ix,tg)
else
logs.report("lxml","lpath matched (f) %5i: %s = %s:%s -> skipped",c,ix,ns,tg)
end
elseif b == "+" then
e.command = true
if ns == "" then
logs.report("lxml","lpath matched (g) %5i: %s = %s -> text",c,ix,tg)
else
logs.report("lxml","lpath matched (h) %5i: %s = %s:%s -> text",c,ix,ns,tg)
end
else
e.command = a .. tg
if ns == "" then
logs.report("lxml","lpath matched (i) %5i: %s = %s -> %s",c,ix,tg,e.command)
else
logs.report("lxml","lpath matched (j) %5i: %s = %s:%s -> %s",c,ix,ns,tg,e.command)
end
end
end
else
for c=1, #collected do
local e = collected[c]
if b == "-" then
e.command = false
elseif b == "+" then
e.command = true
else
e.command = a .. e.tg
end
end
end
elseif trace_setups then
logs.report("lxml","no lpath matches for %s",pattern)
end
else
local collected = lxmlparseapply(id,pattern)
if collected then
if trace_setups then
for c=1, #collected do
local e = collected[c]
e.command = setup
local ns, tg, ix = e.rn or e.ns, e.tg, e.ix or 0
if ns == "" then
logs.report("lxml","lpath matched (k) %5i: %s = %s -> %s",c,ix,tg,setup)
else
logs.report("lxml","lpath matched (l) %5i: %s = %s:%s -> %s",c,ix,ns,tg,setup)
end
end
else
for c=1, #collected do
collected[c].command = setup
end
end
elseif trace_setups then
logs.report("lxml","no lpath matches for %s",pattern)
end
end
end
end
-- finalizers
local finalizers = xml.finalizers.tex
local function first(collected)
if collected then
xmlsprint(collected[1])
end
end
local function last(collected)
if collected then
xmlsprint(collected[#collected])
end
end
local function all(collected)
if collected then
for c=1,#collected do
xmlsprint(collected[c])
end
end
end
local function reverse(collected)
if collected then
for c=#collected,1,-1 do
xmlsprint(collected[c])
end
end
end
local function count(collected)
texwrite((collected and #collected) or 0)
end
local function position(collected,n)
-- todo: if not n then == match
if collected then
n = tonumber(n) or 0
if n < 0 then
n = #collected + n + 1
end
if n > 0 then
xmlsprint(collected[n])
end
end
end
local function match(collected) -- is match in preceding collected, never change, see bibxml
texwrite((collected and collected[1].mi) or 0)
end
local function index(collected,n)
if collected then
n = tonumber(n) or 0
if n < 0 then
n = #collected + n + 1
end
if n > 0 then
texwrite(collected[n].ni or 0)
end
end
end
local function command(collected,cmd)
if collected then
for c=1,#collected do
local e = collected[c]
local ix = e.ix
if not ix then
lxml.addindex(e.name,false,true)
ix = e.ix
end
texsprint(ctxcatcodes,"\\xmlw{",cmd,"}{",e.name,"::",ix,"}")
end
end
end
local function attribute(collected,a,default)
if collected and #collected > 0 then
local at = collected[1].at
local str = (at and at[a]) or default
if str and str ~= "" then
texsprint(notcatcodes,str)
end
elseif default then
texsprint(notcatcodes,default)
end
end
local function chainattribute(collected,arguments) -- todo: optional levels
if collected then
local e = collected[1]
while e do
local at = e.at
if at then
local a = at[arguments]
if a then
texsprint(notcatcodes,a)
end
else
break -- error
end
e = e.__p__
end
end
end
local function text(collected)
if collected then
local nc = #collected
if nc == 1 then -- hardly any gain so this will go
cprint(collected[1])
else for c=1,nc do
cprint(collected[c])
end end
end
end
local function ctxtext(collected)
if collected then
for c=1,#collected do
texsprint(ctxcatcodes,collected[1].dt)
end
end
end
local lowerchars, upperchars = characters.lower, characters.upper
local function lower(collected)
if collected then
for c=1,#collected do
texsprint(ctxcatcodes,lowerchars(collected[1].dt[1]))
end
end
end
local function upper(collected)
if collected then
for c=1,#collected do
texsprint(ctxcatcodes,upperchars(collected[1].dt[1]))
end
end
end
local function number(collected)
if collected then
local n = 0
for c=1,#collected do
n = n + tonumber(collected[c].dt[1] or 0)
end
texwrite(n)
end
end
local function concatrange(collected,start,stop,separator,lastseparator,textonly) -- test this on mml
if collected then
local nofcollected = #collected
local separator = separator or ""
local lastseparator = lastseparator or separator or ""
start, stop = (start == "" and 1) or tonumber(start) or 1, (stop == "" and nofcollected) or tonumber(stop) or nofcollected
if stop < 0 then stop = nofcollected + stop end -- -1 == last-1
for i=start,stop do
if textonly then
xmlcprint(collected[i])
else
xmlsprint(collected[i])
end
if i == nofcollected then
-- nothing
elseif i == nofcollected-1 and lastseparator ~= "" then
texsprint(ctxcatcodes,lastseparator)
elseif separator ~= "" then
texsprint(ctxcatcodes,separator)
end
end
end
end
local function concat(collected,separator,lastseparator,textonly) -- test this on mml
concatrange(collected,false,false,separator,lastseparator,textonly)
end
finalizers.first = first
finalizers.last = last
finalizers.all = all
finalizers.reverse = reverse
finalizers.count = count
finalizers.command = command
finalizers.attribute = attribute
finalizers.text = text
finalizers.lower = lower
finalizers.upper = upper
finalizers.ctxtext = ctxtext
finalizers.context = ctxtext
finalizers.position = position
finalizers.match = match
finalizers.index = index
finalizers.concat = concat
finalizers.concatrange = concatrange
finalizers.chainattribute = chainattribute
finalizers.default = all -- !!
local concat = table.concat
function finalizers.tag(collected)
if collected then
local c
if n == 0 or not n then
c = collected[1]
elseif n > 1 then
c = collected[n]
else
c = collected[#collected-n+1]
end
if c then
texsprint(c.tg)
end
end
end
function finalizers.name(collected)
if collected then
local c
if n == 0 or not n then
c = collected[1]
elseif n > 1 then
c = collected[n]
else
c = collected[#collected-n+1]
end
if c then
if c.ns == "" then
texsprint(c.tg)
else
texsprint(c.ns,":",c.tg)
end
end
end
end
function finalizers.tags(collected,nonamespace)
if collected then
for c=1,#collected do
local e = collected[c]
local ns, tg = e.ns, e.tg
if nonamespace or ns == "" then
texsprint(tg)
else
texsprint(ns,":",tg)
end
end
end
end
--
local function verbatim(id,before,after)
local root = get_id(id)
if root then
if before then texsprint(ctxcatcodes,before,"[",root.tg or "?","]") end
lxml.toverbatim(xmltostring(root.dt))
if after then texsprint(ctxcatcodes,after) end
end
end
function lxml.inlineverbatim(id)
verbatim(id,"\\startxmlinlineverbatim","\\stopxmlinlineverbatim")
end
function lxml.displayverbatim(id)
verbatim(id,"\\startxmldisplayverbatim","\\stopxmldisplayverbatim")
end
lxml.verbatim = verbatim
-- helpers
function lxml.first(id,pattern)
local collected = lxmlparseapply(id,pattern)
if collected then
first(collected)
end
end
function lxml.last(id,pattern)
local collected = lxmlparseapply(id,pattern)
if collected then
last(collected)
end
end
function lxml.all(id,pattern)
local collected = lxmlparseapply(id,pattern)
if collected then
all(collected)
end
end
function lxml.count(id,pattern)
-- always needs to produce a result so no test here
count(lxmlparseapply(id,pattern))
end
function lxml.attribute(id,pattern,a,default)
local collected = lxmlparseapply(id,pattern)
if collected then
attribute(collected,a,default)
end
end
function lxml.raw(id,pattern) -- the content, untouched by commands
local collected = (pattern and lxmlparseapply(id,pattern)) or get_id(id)
if collected then
texsprint(xmltostring(collected[1].dt))
end
end
function lxml.context(id,pattern) -- the content, untouched by commands
if not pattern then
local collected = get_id(id)
-- texsprint(ctxcatcodes,collected.dt[1])
ctx_text(collected.dt[1])
else
local collected = lxmlparseapply(id,pattern) or get_id(id)
if collected and #collected > 0 then
texsprint(ctxcatcodes,collected[1].dt)
end
end
end
function lxml.text(id,pattern)
local collected = (pattern and lxmlparseapply(id,pattern)) or get_id(id)
if collected then
text(collected)
end
end
lxml.content = text
function lxml.position(id,pattern,n)
local collected = lxmlparseapply(id,pattern)
if collected then
position(collected,n)
end
end
function lxml.chainattribute(id,pattern,a,default)
local collected = lxmlparseapply(id,pattern)
if collected then
chainattribute(collected,a,default)
end
end
function lxml.concatrange(id,pattern,start,stop,separator,lastseparator,textonly) -- test this on mml
concatrange(lxmlparseapply(id,pattern),start,stop,separator,lastseparator,textonly)
end
function lxml.concat(id,pattern,separator,lastseparator,textonly)
concatrange(lxmlparseapply(id,pattern),false,false,separator,lastseparator,textonly)
end
function lxml.element(id,n)
position(lxmlparseapply(id,"/*"),n)
end
lxml.index = lxml.position
function lxml.pos(id)
local root = get_id(id)
texwrite((root and root.ni) or 0)
end
function lxml.att(id,a,default)
local root = get_id(id)
if root then
local at = root.at
local str = (at and at[a]) or default
if str and str ~= "" then
texsprint(notcatcodes,str)
end
elseif default then
texsprint(notcatcodes,default)
end
end
function lxml.name(id) -- or remapped name? -> lxml.info, combine
local r = get_id(id)
local ns = r.rn or r.ns or ""
if ns ~= "" then
texsprint(ns,":",r.tg)
else
texsprint(r.tg)
end
end
function lxml.match(id) -- or remapped name? -> lxml.info, combine
texsprint(get_id(id).mi or 0)
end
function lxml.tag(id) -- tag vs name -> also in l-xml tag->name
texsprint(get_id(id).tg or "")
end
function lxml.namespace(id) -- or remapped name?
local root = get_id(id)
texsprint(root.rn or root.ns or "")
end
function lxml.flush(id)
id = get_id(id)
local dt = id and id.dt
if dt then
xmlsprint(dt)
end
end
function lxml.snippet(id,i)
local e = get_id(id)
if e then
local edt = e.dt
if edt then
xmlsprint(edt[i])
end
end
end
function lxml.direct(id)
xmlsprint(get_id(id))
end
function lxml.command(id,pattern,cmd)
local i, p = get_id(id,true)
local collected = lxmlparseapply(i,pattern)
if collected then
local rootname = p or i.name
for c=1,#collected do
local e = collected[c]
local ix = e.ix
if not ix then
addindex(rootname,false,true)
ix = e.ix
end
texsprint(ctxcatcodes,"\\xmlw{",cmd,"}{",rootname,"::",ix,"}")
end
end
end
-- loops
function lxml.collected(id,pattern,reverse)
return xmlcollected(get_id(id),pattern,reverse)
end
function lxml.elements(id,pattern,reverse)
return xmlelements(get_id(id),pattern,reverse)
end
-- obscure ones
lxml.info = lxml.name
-- testers
local found, empty = xml.found, xml.empty
local doif, doifnot, doifelse = commands.doif, commands.doifnot, commands.doifelse
function lxml.doif (id,pattern) doif (found(get_id(id),pattern)) end
function lxml.doifnot (id,pattern) doifnot (found(get_id(id),pattern)) end
function lxml.doifelse (id,pattern) doifelse(found(get_id(id),pattern)) end
function lxml.doiftext (id,pattern) doif (not empty(get_id(id),pattern)) end
function lxml.doifnottext (id,pattern) doifnot (not empty(get_id(id),pattern)) end
function lxml.doifelsetext (id,pattern) doifelse(not empty(get_id(id),pattern)) end
-- special case: "*" and "" -> self else lpath lookup
--~ function lxml.doifelseempty(id,pattern) doifelse(isempty(get_id(id),pattern ~= "" and pattern ~= nil)) end -- not yet done, pattern
-- status info
statistics.register("xml load time", function()
if noffiles > 0 or nofconverted > 0 then
return format("%s seconds, %s files, %s converted", statistics.elapsedtime(xml), noffiles, nofconverted)
else
return nil
end
end)
statistics.register("lxml preparation time", function()
local calls, cached = xml.lpathcalls(), xml.lpathcached()
if calls > 0 or cached > 0 then
return format("%s seconds, %s nodes, %s lpath calls, %s cached calls",
statistics.elapsedtime(lxml), nofindices, calls, cached)
else
return nil
end
end)
statistics.register("lxml lpath profile", function()
local p = xml.profiled
if p and next(p) then
local s = table.sortedkeys(p)
local tested, matched, finalized = 0, 0, 0
texio.write_nl("log","\nbegin of lxml profile\n")
texio.write_nl("log","\n tested matched finalized pattern\n\n")
for i=1,#s do
local pattern = s[i]
local pp = p[pattern]
local t, m, f = pp.tested, pp.matched, pp.finalized
tested, matched, finalized = tested + t, matched + m, finalized + f
texio.write_nl("log",format("%9i %9i %9i %s",t,m,f,pattern))
end
texio.write_nl("log","\nend of lxml profile\n")
return format("%s patterns, %s tested, %s matched, %s finalized (see log for details)",#s,tested,matched,finalized)
else
return nil
end
end)
-- misc
function lxml.nonspace(id,pattern) -- slow, todo loop
xmltprint(xmlcollect(get_id(id),pattern,true))
end
function lxml.strip(id,pattern,nolines,anywhere)
xml.strip(get_id(id),pattern,nolines,anywhere)
end
function lxml.stripped(id,pattern,nolines)
local str = xmltext(get_id(id),pattern) or ""
str = gsub(str,"^%s*(.-)%s*$","%1")
if nolines then
str = gsub(str,"%s+"," ")
end
xmlsprint(str)
end
function lxml.delete(id,pattern)
xml.delete(get_id(id),pattern)
end
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