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if not modules then modules = { } end modules ['lxml-ent'] = {
version = 1.001,
comment = "this module is the basis for the lxml-* ones",
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 byte, format = string.byte, string.format
local utfchar = utf.char
local lpegmatch = lpeg.match
local setmetatableindex = table.setmetatableindex
--[[ldx--
<p>We provide (at least here) two entity handlers. The more extensive
resolver consults a hash first, tries to convert to <l n='utf'/> next,
and finaly calls a handler when defines. When this all fails, the
original entity is returned.</p>
<p>We do things different now but it's still somewhat experimental</p>
--ldx]]--
local trace_entities = false trackers.register("xml.entities", function(v) trace_entities = v end)
local report_xml = logs.reporter("xml")
local xml = xml
xml.entities = xml.entities or { }
storage.register("xml/entities", xml.entities, "xml.entities" )
local entities = xml.entities -- maybe some day properties
function xml.registerentity(key,value)
entities[key] = value
if trace_entities then
report_xml("registering entity %a as %a",key,value)
end
end
if characters and characters.entities then
-- the big entity table also has amp, quot, apos, lt, gt in them
local loaded = false
function characters.registerentities(forcecopy)
if loaded then
return
end
if forcecopy then
setmetatableindex(entities,nil)
for name, value in next, characters.entities do
if not entities[name] then
entities[name] = value
end
end
else
setmetatableindex(entities,characters.entities)
end
loaded = true
end
end
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