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|
if not modules then modules = { } end modules ['lxml-ini'] = {
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 tex = tex or {}
local texsprint, texprint, texwrite, utfchar = tex.sprint or print, tex.print or print, tex.write or print, utf.char
local concat, insert, remove, gsub, find = table.concat, table.insert, table.remove
local format, sub, gsub, find = string.format, string.sub, string.gsub, string.find
local type, next, tonumber, tostring = type, next, tonumber, tostring
local ctxcatcodes = tex.ctxcatcodes
local texcatcodes = tex.texcatcodes
local vrbcatcodes = tex.vrbcatcodes
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)
-- for the moment here
function table.insert_before_value(t,value,extra)
for i=1,#t do
if t[i] == extra then
remove(t,i)
end
end
for i=1,#t do
if t[i] == value then
insert(t,i,extra)
return
end
end
insert(t,1,extra)
end
function table.insert_after_value(t,value,extra)
for i=1,#t do
if t[i] == extra then
remove(t,i)
end
end
for i=1,#t do
if t[i] == value then
insert(t,i+1,extra)
return
end
end
insert(t,#t+1,extra)
end
-- todo: speed up: remember last index/match combination
local traverse, lpath = xml.traverse, xml.lpath
local xmlfilter, xmlfirst, xmllast, xmlall = xml.filter, xml.first, xml.last, xml.all
local xmlcollect, xmlcontent, xmlcollect_texts, xmlcollect_tags, xmlcollect_elements = xml.collect, xml.content, xml.collect_texts, xml.collect_tags, xml.collect_elements
local xmlattribute, xmlindex, xmlchainattribute = xml.filters.attribute, xml.filters.index, xml.filters.chainattribute
local xmlelements = xml.elements
document = document or { }
document.xml = document.xml or { }
-- todo: loaded and myself per document so that we can garbage collect buffers
lxml = lxml or { }
lxml.loaded = { }
lxml.paths = { }
lxml.myself = { }
lxml.noffiles = 0
lxml.nofconverted = 0
lxml.nofindices = 0
local loaded = lxml.loaded
local paths = lxml.paths
local myself = lxml.myself
local stack = lxml.stack
--~ lxml.self = myself -- be backward compatible for a while
--~ local function get_id(id)
--~ return (type(id) == "table" and id) or loaded[id] or myself[tonumber(id)] -- no need for tonumber if we pass without ""
--~ end
-- experiment
local currentdocuments, currentloaded, currentdocument, defaultdocument = { }, { }, "", ""
function lxml.pushdocument(name) -- catches double names
if #currentdocuments == 0 then
defaultdocument = name
end
currentdocument = name
insert(currentdocuments,currentdocument)
insert(currentloaded,loaded[currentdocument])
if trace_access then
logs.report("lxml","pushed: %s",currentdocument)
end
end
function lxml.popdocument()
currentdocument = remove(currentdocuments)
if not currentdocument or currentdocument == "" then
currentdocument = defaultdocument
end
loaded[currentdocument] = remove(currentloaded)
if trace_access then
logs.report("lxml","popped: %s",currentdocument)
end
end
--~ local splitter = lpeg.splitat("::")
local splitter = lpeg.C((1-lpeg.P(":"))^1) * lpeg.P("::") * lpeg.C(lpeg.P(1)^1)
local function get_id(id)
if type(id) == "table" then
return id
else
local lid = loaded[id]
if lid then
return lid
else
local d, i = splitter:match(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
return root
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
else
local ld = loaded[currentdocument]
if ld then
local ldi = ld.index
if ldi then
local root = ldi[tonumber(id)]
if root then
return root
elseif trace_access then
logs.report("lxml","current document '%s' has no index entry '%s'",currentdocument,id)
end
elseif trace_access then
logs.report("lxml","current document '%s' has no index",currentdocument)
end
elseif trace_access then
logs.report("lxml","current document '%s' not loaded",currentdocument)
end
end
end
end
end
lxml.id = get_id
function lxml.root(id)
return loaded[id]
end
do
xml.specialhandler = xml.specialhandler or { }
local specialhandler = xml.specialhandler
local serialize = xml.serialize
local crlf = lpeg.P("\r\n")
local cr = lpeg.P("\r")
local lf = lpeg.P("\n")
local space = lpeg.S(" \t\f\v")
local newline = crlf + cr + lf
local spacing = newline * space^0
local content = lpeg.C((1-spacing)^1)
local verbose = lpeg.C((1-(space+newline))^1)
-- local capture = (
-- newline^2 * lpeg.Cc("") / texprint +
-- newline * lpeg.Cc(" ") / texsprint +
-- content / texsprint
-- )^0
local capture = (
space^0 * newline^2 * lpeg.Cc("") / texprint +
space^0 * newline * space^0 * lpeg.Cc(" ") / texsprint +
content / texsprint
)^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
local function sprint(root)
if not root then
--~ rawroot = false
-- quit
else
local tr = type(root)
if tr == "string" then -- can also be result of lpath
--~ rawroot = false
capture:match(root)
elseif tr == "table" then
rawroot = forceraw and root
serialize(root,sprint,nil,nil,specialhandler,forceraw)
end
end
end
xml.sprint = sprint
function xml.tprint(root) -- we can move sprint inline
local tr = type(root)
if tr == "table" then
local n = #root
if n == 0 then
sprint("") -- empty element, else no setup triggered (check this! )
else
for i=1,n do
sprint(root[i])
end
end
elseif tr == "string" then
sprint(root)
end
end
function xml.cprint(root) -- content
if not root then
--~ rawroot = false
-- quit
elseif type(root) == 'string' then
--~ rawroot = false
capture:match(root)
else
local rootdt = root.dt
rawroot = forceraw and root
if rootdt then -- the main one
serialize(rootdt,sprint,nil,nil,specialhandler,forceraw)
else -- probably dt
serialize(root,sprint,nil,nil,specialhandler,forceraw)
end
end
end
-- lines (untested)
local buffer = { }
local capture = (
newline^2 / function() buffer[#buffer+1] = "" end +
newline / function() buffer[#buffer] = buffer[#buffer] .. " " end +
content / function(s) buffer[#buffer] = buffer[#buffer] .. s end
)^0
function lines(root)
if not root then
--~ rawroot = false
-- quit
elseif type(root) == 'string' then
--~ rawroot = false
capture:match(root)
elseif next(root) then -- tr == 'table'
rawroot = forceraw and root
serialize(root,lines,forceraw)
end
end
function xml.lines(root)
buffer = { "" }
lines(root)
return result
end
-- cdata
local linecommand = "\\obeyedline"
local spacecommand = "\\obeyedspace" -- "\\strut\\obeyedspace"
local beforecommand = ""
local aftercommand = ""
local capture = (
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
capture:match(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
function lxml.set_cdata()
specialhandler['@cd@'] = toverbatim
end
function lxml.reset_cdata()
specialhandler['@cd@'] = nil
end
-- local capture = (space^0*newline)^0 * capture * (space+newline)^0 * -1
local function 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]+$","")
capture:match(str)
if aftercommand then texsprint(texcatcodes,aftercommand,"{}") end
end
function lxml.verbatim(id,before,after)
local root = get_id(id)
if root then
if before then texsprint(ctxcatcodes,format("%s[%s]",before,root.tg)) end
-- serialize(root.dt,toverbatim,nil,nil,nil,true) -- was root
local t = { }
serialize(root.dt,function(s) t[#t+1] = s end,nil,nil,nil,true) -- was root
toverbatim(table.concat(t,""))
if after then texsprint(ctxcatcodes,after) end
end
end
function lxml.inlineverbatim(id)
lxml.verbatim(id,"\\startxmlinlineverbatim","\\stopxmlinlineverbatim")
end
function lxml.displayverbatim(id)
lxml.verbatim(id,"\\startxmldisplayverbatim","\\stopxmldisplayverbatim")
end
local pihandlers = { }
specialhandler['@pi@'] = function(str)
for i=1,#pihandlers do
pihandlers[i](str)
end
end
xml.pihandlers = pihandlers
local kind = lpeg.P("context-") * lpeg.C((1-lpeg.P("-"))^1) * lpeg.P("-directive")
local space = lpeg.S(" \n\r")
local spaces = space^0
local class = lpeg.C((1-space)^0)
local key = class
local value = lpeg.C(lpeg.P(1-(space * -1))^0)
local parser = kind * spaces * class * spaces * key * spaces * value
pihandlers[#pihandlers+1] = function(str)
-- local kind, class, key, value = parser:match(str)
if str then
local a, b, c, d = parser:match(str)
if d then
texsprint(ctxcatcodes,format("\\xmlcontextdirective{%s}{%s}{%s}{%s}",a,b,c,d))
end
end
end
-- print(contextdirective("context-mathml-directive function reduction yes "))
-- print(contextdirective("context-mathml-directive function "))
function lxml.main(id)
serialize(get_id(id),sprint,nil,nil,specialhandler) -- the real root (@rt@)
end
specialhandler['@dt@'] = function()
-- nothing
end
end
local xmlsprint = xml.sprint
local xmltprint = xml.tprint
-- redefine xml load
xml.originalload = xml.originalload or xml.load
local starttiming, stoptiming = statistics.starttiming, statistics.stoptiming
--~ function xml.load(filename)
--~ lxml.noffiles = lxml.noffiles + 1
--~ starttiming(xml)
--~ local xmldata = xml.convert((filename and resolvers.loadtexfile(filename)) or "")
--~ stoptiming(xml)
--~ return xmldata
--~ end
function xml.load(filename)
lxml.noffiles = lxml.noffiles + 1
lxml.nofconverted = lxml.nofconverted + 1
starttiming(xml)
local ok, data = resolvers.loadbinfile(filename)
local xmldata = xml.convert((ok and data) or "")
stoptiming(xml)
return xmldata
end
function lxml.load(id,filename)
filename = commands.preparedfile(filename)
if trace_loading then
commands.writestatus("lxml","loading file '%s' as '%s'",filename,id)
end
local root = xml.load(filename)
loaded[id], paths[id]= root, filename
return root, filename
end
function lxml.register(id,xmltable)
loaded[id] = xmltable
return xmltable
end
function lxml.include(id,pattern,attribute,recurse)
starttiming(xml)
xml.include(get_id(id),pattern,attribute,recurse,function(filename)
if filename then
filename = commands.preparedfile(filename)
if file.dirname(filename) == "" then
filename = file.join(file.dirname(paths[currentdocument]),filename)
end
if trace_loading then
commands.writestatus("lxml","including file: %s",filename)
end
lxml.noffiles = lxml.noffiles + 1
lxml.nofconverted = lxml.nofconverted + 1
return resolvers.loadtexfile(filename) or ""
else
return ""
end
end)
stoptiming(xml)
end
function lxml.utfize(id)
xml.utfize(get_id(id))
end
function lxml.filter(id,pattern)
xmlsprint(xmlfilter(get_id(id),pattern))
end
function lxml.first(id,pattern)
xmlsprint(xmlfirst(get_id(id),pattern))
end
function lxml.last(id,pattern)
xmlsprint(xmllast(get_id(id),pattern))
end
function lxml.all(id,pattern)
-- xmltprint(xmlcollect(get_id(id),pattern))
traverse(get_id(id), lpath(pattern), function(r,d,k)
-- to be checked for root::
if d then
xmlsprint(d[k])
else -- new, maybe wrong
--~ xmlsprint(r)
end
return false
end)
end
function lxml.nonspace(id,pattern) -- slow, todo loop
xmltprint(xmlcollect(get_id(id),pattern,true))
end
--~ function lxml.content(id)
--~ xmlsprint(xmlcontent(get_id(id)) or "")
--~ end
function lxml.strip(id,pattern,nolines)
xml.strip(get_id(id),pattern,nolines)
end
function lxml.text(id,pattern)
xmltprint(xmlcollect_texts(get_id(id),pattern) or {})
end
function lxml.tags(id,pattern)
local tags = xmlcollect_tags(get_id(id),pattern)
if tags then
texsprint(concat(tags,","))
end
end
function lxml.raw(id,pattern) -- the content, untouched by commands
local c = xmlfilter(get_id(id),pattern)
if c then
xml.serialize(c.dt,texsprint,nil,nil,nil,true)
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 xml.element(e,n)
if e then
local edt = e.dt
if edt then
if n > 0 then
for i=1,#edt do
local ei = edt[i]
if type(ei) == "table" then
if n == 1 then
xmlsprint(ei)
return
else
n = n - 1
end
end
end
elseif n < 0 then
for i=#edt,1,-1 do
local ei = edt[i]
if type(ei) == "table" then
if n == -1 then
xmlsprint(ei)
return
else
n = n + 1
end
end
end
end
end
end
end
function lxml.element(id,n)
xml.element(get_id(id),n)
end
function lxml.stripped(id,pattern,nolines)
local str = xmlcontent(get_id(id),pattern) or ""
str = gsub(str,"^%s*(.-)%s*$","%1")
if nolines then
str = gsub(str,"%s+"," ")
end
xmlsprint(str)
end
function lxml.flush(id)
id = get_id(id)
local dt = id and id.dt
if dt then
xmlsprint(dt)
end
end
function lxml.direct(id)
xmlsprint(get_id(id))
end
function lxml.index(id,pattern,i)
xmlsprint((xmlindex(get_id(id),pattern,i)))
end
function lxml.attribute(id,pattern,a,default) --todo: snelle xmlatt
local str = xmlattribute(get_id(id),pattern,a) or ""
texsprint((str == "" and default) or str)
end
function lxml.chainattribute(id,pattern,a,default) --todo: snelle xmlatt
local str = xmlchainattribute(get_id(id),pattern,a) or ""
texsprint((str == "" and default) or str)
end
function lxml.count(id,pattern)
texsprint(xml.count(get_id(id),pattern) or 0)
end
function lxml.nofelements(id)
local e = get_id(id)
local edt = e.dt
if edt and type(edt) == "table" then
local n = 0
for i=1,#edt do
if type(edt[i]) == "table" then
n = n + 1
end
end
texsprint(n)
else
texsprint(0)
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.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.concat(id,what,separator,lastseparator)
--~ texsprint(concat(xml.collect_texts(get_id(id),what,true),separator or ""))
--~ end
function lxml.concatrange(id,what,start,stop,separator,lastseparator) -- test this on mml
local t = xmlcollect_elements(lxml.id(id),what,true) -- ignorespaces
local separator = separator or ""
local lastseparator = lastseparator or separator or ""
start, stop = (start == "" and 1) or tonumber(start) or 1, (stop == "" and #t) or tonumber(stop) or #t
if stop < 0 then stop = #t + stop end -- -1 == last-1
for i=start,stop do
xmlsprint(t[i])
if i == #t then
-- nothing
elseif i == #t-1 and lastseparator ~= "" then
texsprint(ctxcatcodes,lastseparator)
elseif separator ~= "" then
texsprint(ctxcatcodes,separator)
end
end
end
function lxml.concat(id,what,separator,lastseparator)
lxml.concatrange(id,what,false,false,separator,lastseparator)
end
-- string : setup
-- true : text (no <self></self>)
-- false : ignore
-- function : call
-- todo: free self after usage, i.e. after the setup, which
-- means a call to lua; we can also choose a proper maximum
-- and cycle or maybe free on demand
-- problems with empty elements
-- we use a real tex.sprint, else spaces go wrong
-- maybe just a .. because this happens often
function xml.command(root, command)
local tc = type(command)
if tc == "string" then
-- setup
--~ local n = #myself + 1
--~ myself[n] = root
--~ texsprint(ctxcatcodes,format("\\xmlsetup{%i}{%s}",n,command))
texsprint(ctxcatcodes,format("\\xmlsetup{%s}{%s}",root.ix,command))
elseif tc == "function" then
-- function
command(root)
elseif command == true then
-- text (no <self></self>) / so, no mkii fallback then
xmltprint(root.dt)
elseif command == false then
-- ignore
else
-- fuzzy, so ignore too
end
end
function lxml.setaction(id,pattern,action)
for rt, dt, dk in xmlelements(get_id(id),pattern) do
dt[dk].command = action
end
end
function lxml.setsetup(id,pattern,setup)
if not setup or setup == "" or setup == "*" or setup == "-" or setup == "+" then
for rt, dt, dk in xmlelements(get_id(id),pattern) do
local dtdk = dt and dt[dk] or rt
local ns, tg = dtdk.rn or dtdk.ns, dtdk.tg
if tg then -- to be sure
local command = (ns == "" and tg) or (ns .. ":" .. tg)
if setup == "-" then
dtdk.command = false
if trace then
logs.report("lxml","lpath matched -> %s -> skipped", command)
end
elseif setup == "+" then
dtdk.command = true
if trace_setups then
logs.report("lxml","lpath matched -> %s -> text", command)
end
else
dtdk.command = command
if trace_setups then
logs.report("lxml","lpath matched -> %s -> %s", command, command)
end
end
end
end
else
local a, b = setup:match("^(.+:)([%*%-])$")
if a and b then
for rt, dt, dk in xmlelements(get_id(id),pattern) do
local dtdk = (dt and dt[dk]) or rt
local ns, tg = dtdk.rn or dtdk.ns, dtdk.tg
if b == "-" then
dtdk.command = false
if trace_setups then
if ns == "" then
logs.report("lxml","lpath matched -> %s -> skipped", tg)
else
logs.report("lxml","lpath matched -> %s:%s -> skipped", ns, tg)
end
end
elseif b == "+" then
dtdk.command = true
if trace_setups then
if ns == "" then
logs.report("lxml","lpath matched -> %s -> text", tg)
else
logs.report("lxml","lpath matched -> %s:%s -> text", ns, tg)
end
end
else
dtdk.command = a .. tg
if trace_setups then
if ns == "" then
logs.report("lxml","lpath matched -> %s -> %s", tg, dtdk.command)
else
logs.report("lxml","lpath matched -> %s:%s -> %s", ns, tg, dtdk.command)
end
end
end
end
else
if trace_setups then
logs.report("lxml","lpath pattern -> %s -> %s", pattern, setup)
end
for rt, dt, dk in xmlelements(get_id(id),pattern) do
local dtdk = (dt and dt[dk]) or rt
dtdk.command = setup
if trace_setups then
local ns, tg = dtdk.rn or dtdk.ns, dtdk.tg
if ns == "" then
logs.report("lxml","lpath matched -> %s -> %s", tg, setup)
else
logs.report("lxml","lpath matched -> %s:%s -> %s", ns, tg, setup)
end
end
end
end
end
end
function lxml.idx(id,pattern,i) -- hm, hashed, needed?
local r = get_id(id)
if r then
local rp = r.patterns
if not rp then
rp = { }
r.patterns = rp
end
if not rp[pattern] then
rp[pattern] = xmlcollect_elements(r,pattern) -- dd, rr
end
local rpi = rp[pattern] and rp[pattern][i]
if rpi then
xmlsprint(rpi)
end
end
end
function lxml.info(id)
id = get_id(id)
local ns, tg = id.ns, id.tg
if ns and ns ~= "" then -- best make a function
tg = ns .. ":" .. tg
else
tg = tg or "?"
end
texsprint(tg)
end
local function command(root,pattern,cmd) -- met zonder ''
--~ cmd = gsub(cmd,"^([\'\"])(.-)%1$", "%2")
if find(cmd,"^[\'\"]") then
cmd = sub(cmd,2,-2)
end
traverse(root, lpath(pattern), function(r,d,k)
-- this can become pretty large
local m = (d and d[k]) or r -- brrr this r, maybe away
if type(m) == "table" then -- probably a bug
--~ local n = #myself + 1
--~ myself[n] = m
--~ texsprint(ctxcatcodes,format("\\xmlsetup{%s}{%s}",n,cmd))
texsprint(ctxcatcodes,format("\\xmlsetup{%s}{%s}",tostring(m.ix),cmd))
end
end)
end
xml.filters.command = command
function lxml.command(id,pattern,cmd)
command(get_id(id),pattern,cmd)
end
local function dofunction(root,pattern,fnc)
traverse(root, lpath(pattern), xml.functions[fnc]) -- r, d, t
end
xml.filters["function"] = dofunction
--~ <?xml version="1.0" standalone="yes"?>
--~ <!-- demo.cdx -->
--~ <directives>
--~ <!--
--~ <directive attribute='id' value="100" setup="cdx:100"/>
--~ <directive attribute='id' value="101" setup="cdx:101"/>
--~ -->
--~ <!--
--~ <directive attribute='cdx' value="colors" element="cals:table" setup="cdx:cals:table:colors"/>
--~ <directive attribute='cdx' value="vertical" element="cals:table" setup="cdx:cals:table:vertical"/>
--~ <directive attribute='cdx' value="noframe" element="cals:table" setup="cdx:cals:table:noframe"/>
--~ -->
--~ <directive attribute='cdx' value="*" element="cals:table" setup="cdx:cals:table:*"/>
--~ </directives>
lxml.directives = { }
local data = {
setup = { },
before = { },
after = { }
}
function lxml.directives.load(filename)
local fullname = resolvers.find_file(filename) or ""
if fullname ~= "" then
filename = fullname
end
local root = xml.load(filename)
for r, d, k in xmlelements(root,"directive") do
local dk = d[k]
local at = dk.at
local attribute, value, element = at.attribute or "", at.value or "", at.element or '*'
local setup, before, after = at.setup or "", at.before or "", at.after or ""
if attribute ~= "" and value ~= "" then
local key = format("%s::%s::%s",element,attribute,value)
local t = data[key] or { }
if setup ~= "" then t.setup = setup end
if before ~= "" then t.before = before end
if after ~= "" then t.after = after end
data[key] = t
end
end
end
function lxml.directives.setup(root,attribute,element)
lxml.directives.handle_setup('setup',root,attribute,element)
end
function lxml.directives.before(root,attribute,element)
lxml.directives.handle_setup('before',root,attribute,element)
end
function lxml.directives.after(root,attribute,element)
lxml.directives.handle_setup('after',root,attribute,element)
end
function lxml.directives.handle_setup(category,root,attribute,element)
root = get_id(root)
attribute = attribute
if attribute then
local value = root.at[attribute]
if value then
if not element then
local ns, tg = root.rn or root.ns, root.tg
if ns == "" then
element = tg
else
element = ns .. ':' .. tg
end
end
local setup = data[format("%s::%s::%s",element,attribute,value)]
if setup then
setup = setup[category]
end
if setup then
texsprint(ctxcatcodes,format("\\directsetup{%s}",setup))
else
setup = data[format("%s::%s::*",element,attribute)]
if setup then
setup = setup[category]
end
if setup then
texsprint(ctxcatcodes,format("\\directsetup{%s}",gsub(setup,'%*',value)))
end
end
end
end
end
function xml.getbuffer(name) -- we need to make sure that commands are processed
if not name or name == "" then
name = tex.jobname
end
lxml.nofconverted = lxml.nofconverted + 1
xml.tostring(xml.convert(concat(buffers.data[name] or {},"")))
end
function lxml.loadbuffer(id,name)
if not name or name == "" then
name = tex.jobname
end
starttiming(xml)
lxml.nofconverted = lxml.nofconverted + 1
loaded[id] = xml.convert(buffers.collect(name or id,"\n"))
stoptiming(xml)
return loaded[id], name or id
end
function lxml.loaddata(id,str)
starttiming(xml)
lxml.nofconverted = lxml.nofconverted + 1
loaded[id] = xml.convert(str or "")
stoptiming(xml)
return loaded[id], id
end
function lxml.loadregistered(id)
return loaded[id], id
end
-- for the moment here:
lxml.set_verbatim("\\xmlcdatabefore", "\\xmlcdataafter", "\\xmlcdataobeyedline", "\\xmlcdataobeyedspace")
lxml.set_cdata()
local traced = { }
function lxml.trace_text_entities(str)
return gsub(str,"&(.-);",function(s)
traced[s] = (traced[s] or 0) + 1
return "["..s.."]"
end)
end
function lxml.show_text_entities()
for k,v in ipairs(table.sortedkeys(traced)) do
local h = v:match("^#x(.-)$")
if h then
local d = tonumber(h,16)
local u = utfchar(d)
logs.report("lxml","entity: %s / %s / %s / n=%s",h,d,u,traced[v])
else
logs.report("lxml","entity: %s / n=%s",v,traced[v])
end
end
end
local error_entity_handler = function(s) return format("[%s]",s) end
local element_entity_handler = function(s) return format("<ctx:e n='%s'/>",s) end
function lxml.set_mkii_entityhandler()
xml.entity_handler = error_entity_handler
xml.set_text_cleanup()
end
function lxml.set_mkiv_entityhandler()
xml.entity_handler = element_entity_handler
xml.set_text_cleanup(xml.resolve_text_entities)
end
function lxml.reset_entityhandler()
xml.entity_handler = error_entity_handler
xml.set_text_cleanup()
end
local function with_elements_only(e,handle)
if e and handle then
local etg = e.tg
if etg then
if e.special and etg ~= "@rt@" then
if resthandle then
resthandle(e)
end
else
local edt = e.dt
if edt then
for i=1,#edt do
local e = edt[i]
if type(e) == "table" then
handle(e)
with_elements_only(e,handle)
end
end
end
end
end
end
end
local function with_elements_only(e,handle,depth)
if e and handle then
local edt = e.dt
if edt then
depth = depth or 0
for i=1,#edt do
local e = edt[i]
if type(e) == "table" then
handle(e,depth)
with_elements_only(e,handle,depth+1)
end
end
end
end
end
xml.with_elements_only = with_elements_only
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
-- can be made faster: just recurse over whole table, todo
function lxml.set_command_to_text(id)
xml.with_elements_only(get_id(id),to_text)
end
function lxml.set_command_to_none(id)
xml.with_elements_only(get_id(id),to_none)
end
function lxml.get_command_status(id)
local status, stack = {}, {}
local function get(e,d)
local ns, tg = e.ns, e.tg
local name = tg
if ns ~= "" then name = ns .. ":" .. tg end
stack[d] = name
local ec = e.command
if ec == true then
ec = "system: text"
elseif ec == false then
ec = "system: skip"
elseif ec == nil then
ec = "system: not set"
elseif type(ec) == "string" then
ec = "setup: " .. ec
else -- function
ec = tostring(ec)
end
local tag = table.concat(stack," => ",1,d)
local s = status[tag]
if not s then
s = { }
status[tag] = s
end
s[ec] = (s[ec] or 0) + 1
end
if id then
xml.with_elements_only(get_id(id),get)
return status
else
local t = { }
for id, _ in pairs(loaded) do
t[id] = lxml.get_command_status(id)
end
return t
end
end
local setups = { }
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(...)
local done = { }
for _, document in ipairs({...}) do
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,format("\\directsetup{%s}",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
-- rather new, indexed storage (backward refs), maybe i will merge this
function lxml.addindex(name,check_sum,force)
local root = get_id(name)
if root and (not root.index or force) then -- weird, only called once
local index, maxindex, check = root.index or { }, root.maxindex or 0, root.check or { }
local n = 0
local function nest(root)
local dt = root.dt
if not root.ix then
maxindex = maxindex + 1
root.ix = maxindex
check[maxindex] = root.tg
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)
lxml.nofindices = lxml.nofindices + n
--
if type(name) ~= "string" then
name = "unknown"
end
-- todo: checksum at the end, when tuo saved
--~ if root.checksum then
--~ -- extension mode
--~ root.index = index
--~ root.maxindex = maxindex
--~ commands.writestatus("lxml",format("checksum adapted for %s",tostring(name)))
--~ elseif check_sum then
--~ local tag = format("lxml:%s:checksum",name)
--~ local oldchecksum = jobvariables.collected[tag]
--~ local newchecksum = md5.HEX(concat(check,".")) -- maybe no "." needed
--~ jobvariables.tobesaved[tag] = newchecksum
--~ --
--~ if oldchecksum and oldchecksum ~= "" and oldchecksum ~= newchecksum then
--~ root.index = { }
--~ root.maxindex = 0
--~ root.checksum = newchecksum
--~ commands.writestatus("lxml",format("checksum mismatch for %s (extra run needed)",tostring(name)))
--~ else
--~ root.index = index
--~ root.maxindex = maxindex
--~ root.checksum = newchecksum
--~ commands.writestatus("lxml",format("checksum match for %s: %s",tostring(name),newchecksum))
--~ end
--~ else
root.index = index
root.maxindex = maxindex
--~ end
if trace_access then
commands.writestatus("lxml",format("%s loaded, %s index entries",tostring(name),maxindex))
end
end
end
local include= lxml.include
function lxml.include(id,...)
include(id,...)
lxml.addindex(currentdocument,false,true)
end
-- we can share the index
function lxml.checkindex(name)
local root = get_id(name)
return (root and root.index) or 0
end
function lxml.withindex(name,n,command)
texsprint(ctxcatcodes,format("\\xmlsetup{%s::%s}{%s}",name,n,command))
end
function lxml.getindex(name,n)
texsprint(ctxcatcodes,format("%s::%s",name,n))
end
--
local found, isempty = xml.found, xml.isempty
function lxml.doif (id,pattern) commands.doif (found(get_id(id),pattern,false)) end
function lxml.doifnot (id,pattern) commands.doifnot (found(get_id(id),pattern,false)) end
function lxml.doifelse (id,pattern) commands.doifelse(found(get_id(id),pattern,false)) end
-- todo: if no second arg or second arg == "" then quick test
function lxml.doiftext (id,pattern) commands.doif (found (get_id(id),pattern,true)) end
function lxml.doifnottext (id,pattern) commands.doifnot (found (get_id(id),pattern,true)) end
function lxml.doifelsetext (id,pattern) commands.doifelse(found (get_id(id),pattern,true)) end
-- special case: "*" and "" -> self else lpath lookup
function lxml.doifelseempty(id,pattern) commands.doifelse(isempty(get_id(id),pattern ~= "" and pattern ~= nil)) end -- not yet done, pattern
-- status info
statistics.register("xml load time", function()
local noffiles, nofconverted = lxml.noffiles, lxml.nofconverted
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 n = #lxml.self
--~ if n > 0 then
--~ local stats = xml.statistics()
--~ return format("%s seconds, %s backreferences, %s lpath calls, %s cached calls", statistics.elapsedtime(xml), n, stats.lpathcalls, stats.lpathcached)
--~ else
--~ return nil
--~ end
--~ end)
statistics.register("lxml preparation time", function()
local noffiles, nofconverted = lxml.noffiles, lxml.nofconverted
if noffiles > 0 or nofconverted > 0 then
local stats = xml.statistics()
return format("%s seconds, %s nodes, %s lpath calls, %s cached calls", statistics.elapsedtime(lxml), lxml.nofindices, stats.lpathcalls, stats.lpathcached)
else
return nil
end
end)
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