14958605596

Committed 11 May 2025 06:34PM UTC coverage: 31.311% (-25.4%) from 56.689%

Build # 14958605596

Build Type

push

github

Committed by

web-flow

Commit Message

Merge 3e53926d5 into 443551a3e

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6301 of 20124 relevant lines covered (31.31%)

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17.54

/inputters/xml.lua

local base = require("inputters.base")
local lxp = require("lxp")

local inputter = pl.class(base)
inputter._name = "xml"

inputter.order = 2

local function startcommand (parser, command, options)
   -- Discard list values (non-key/value), stuffed by LXP/expat to make it possible to deduce the order of keys in
   -- the source. We're not using it, so we don't care and it is clutter in the AST that makes it different from
   -- ASTs generated from SIL inputs.
   for i = 1, #options do
      options[i] = nil
   end
   local stack = parser:getcallbacks().stack
   local lno, col, pos = parser:pos()
   local position = { lno = lno, col = col, pos = pos }
   -- create an empty command which content will be filled on closing tag
   local element = SU.ast.createCommand(command, options, nil, position)
   table.insert(stack, element)
end

local function endcommand (parser, command)
   local stack = parser:getcallbacks().stack
   local element = table.remove(stack)
   assert(element.command == command)
   local level = #stack
   table.insert(stack[level], element)
end

local function text (parser, msg)
   local stack = parser:getcallbacks().stack
   local element = stack[#stack]
   local n = #element
   if type(element[n]) == "string" then
      element[n] = element[n] .. msg
   else
      table.insert(element, msg)
   end
end

local function parse (doc)
   local content = {
      StartElement = startcommand,
      EndElement = endcommand,
      CharacterData = text,
      _nonstrict = true,
      stack = { {} },
   }
   local parser = lxp.new(content)
   local status, err
   if type(doc) == "string" then
      status, err = parser:parse(doc)
      if not status then
         return nil, err
      end
   else
      for element in pairs(doc) do
         status, err = parser:parse(element)
         if not status then
            return nil, err
         end
      end
   end
   status, err = parser:parse()
   if not status then
      return nil, err
   end
   parser:close()
   return content.stack[1][1]
end

function inputter.appropriate (round, filename, doc)
   if round == 1 then
      return filename:match(".xml$")
   elseif round == 2 then
      local sniff = doc:sub(1, 100):gsub("begin.*", "") or ""
      local promising = sniff:match("<")
      return promising and inputter.appropriate(3, filename, doc)
   elseif round == 3 then
      local _, err = parse(doc)
      return not err
   end
end

function inputter:parse (doc)
   local tree, err = parse(doc)
   if not tree then
      SU.error(err)
   end
   -- XML documents can have any root element, and it should be up to the class
   -- to supply handling far whatever that element that is in a specific format.
   -- Hence we wrap the actual DOM in an extra element of our own if and only if
   -- it doesn't look like a native SILE one already.
   local rootelement = tree.command
   if rootelement ~= "sile" and rootelement ~= "document" then
      tree = SU.ast.createCommand("document", {}, tree)
   end
   return { tree }
end

return inputter

1	local base = require("inputters.base")	7✔
2	local lxp = require("lxp")	7✔
3
4	local inputter = pl.class(base)	7✔
5	inputter._name = "xml"	7✔
6
7	inputter.order = 2	7✔
8
9	local function startcommand (parser, command, options)
10	-- Discard list values (non-key/value), stuffed by LXP/expat to make it possible to deduce the order of keys in
11	-- the source. We're not using it, so we don't care and it is clutter in the AST that makes it different from
12	-- ASTs generated from SIL inputs.
13	for i = 1, #options do	×
14	options[i] = nil	×
15	end
16	local stack = parser:getcallbacks().stack	×
17	local lno, col, pos = parser:pos()	×
18	local position = { lno = lno, col = col, pos = pos }	×
19	-- create an empty command which content will be filled on closing tag
20	local element = SU.ast.createCommand(command, options, nil, position)	×
21	table.insert(stack, element)	×
22	end
23
24	local function endcommand (parser, command)
25	local stack = parser:getcallbacks().stack	×
26	local element = table.remove(stack)	×
27	assert(element.command == command)	×
28	local level = #stack	×
29	table.insert(stack[level], element)	×
30	end
31
32	local function text (parser, msg)
33	local stack = parser:getcallbacks().stack	×
34	local element = stack[#stack]	×
35	local n = #element	×
36	if type(element[n]) == "string" then	×
37	element[n] = element[n] .. msg	×
38	else
39	table.insert(element, msg)	×
40	end
41	end
42
43	local function parse (doc)
44	local content = {	×
45	StartElement = startcommand,
46	EndElement = endcommand,
47	CharacterData = text,
48	_nonstrict = true,
49	stack = { {} },
50	}
51	local parser = lxp.new(content)	×
52	local status, err
53	if type(doc) == "string" then	×
54	status, err = parser:parse(doc)	×
55	if not status then	×
56	return nil, err	×
57	end
58	else
59	for element in pairs(doc) do	×
60	status, err = parser:parse(element)	×
61	if not status then	×
62	return nil, err	×
63	end
64	end
65	end
66	status, err = parser:parse()	×
67	if not status then	×
68	return nil, err	×
69	end
70	parser:close()	×
71	return content.stack[1][1]	×
72	end
73
74	function inputter.appropriate (round, filename, doc)	7✔
75	if round == 1 then	7✔
76	return filename:match(".xml$")	7✔
77	elseif round == 2 then	×
78	local sniff = doc:sub(1, 100):gsub("begin.*", "") or ""	×
79	local promising = sniff:match("<")	×
80	return promising and inputter.appropriate(3, filename, doc)	×
81	elseif round == 3 then	×
82	local _, err = parse(doc)	×
83	return not err	×
84	end
85	end
86
87	function inputter:parse (doc)	7✔
88	local tree, err = parse(doc)	×
89	if not tree then	×
90	SU.error(err)	×
91	end
92	-- XML documents can have any root element, and it should be up to the class
93	-- to supply handling far whatever that element that is in a specific format.
94	-- Hence we wrap the actual DOM in an extra element of our own if and only if
95	-- it doesn't look like a native SILE one already.
96	local rootelement = tree.command	×
97	if rootelement ~= "sile" and rootelement ~= "document" then	×
98	tree = SU.ast.createCommand("document", {}, tree)	×
99	end
100	return { tree }	×
101	end
102
103	return inputter	7✔

sile-typesetter / sile / 14958605596

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