9304191631

Committed 30 May 2024 02:21PM UTC coverage: 49.894% (-10.8%) from 60.669%

Build # 9304191631

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push

github

Committed by

web-flow

Commit Message

Merge fcc56c666 into 1a26b4f22

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8447 of 16930 relevant lines covered (49.89%)

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88.78

/inputters/sil.lua

local base = require("inputters.base")

local _variant = "epnf"
local parser
local function load_parser ()
   parser = require("inputters.sil-" .. _variant)
end

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

inputter.order = 50

inputter.appropriate = function (round, filename, doc)
   if not parser then
      load_parser()
   end
   if round == 1 then
      return filename:match(".sil$")
   elseif round == 2 then
      local sniff = doc:sub(1, 100)
      local promising = sniff:match("\\begin") or sniff:match("\\document") or sniff:match("\\sile")
      return promising and inputter.appropriate(3, filename, doc) or false
   elseif round == 3 then
      local status, _ = pcall(parser, doc)
      return status
   end
end

function inputter:_init (options)
   options = options or {}
   if options.variant then
      _variant = options.variant
      load_parser()
   else
      if not parser then
         load_parser()
      end
   end
   -- Save time when parsing strings by only setting up the grammar once per
   -- instantiation then re-using it on every use.
   self._parser = parser
   base._init(self)
end

local linecache = {}
local lno, col, lastpos
local function resetCache ()
   lno = 1
   col = 1
   lastpos = 0
   linecache = { { lno = 1, pos = 1 } }
end

local function getline (str, pos)
   local start = 1
   lno = 1
   if pos > lastpos then
      lno = linecache[#linecache].lno
      start = linecache[#linecache].pos + 1
      col = 1
   else
      for j = 1, #linecache - 1 do
         if linecache[j + 1].pos >= pos then
            lno = linecache[j].lno
            col = pos - linecache[j].pos
            return lno, col
         end
      end
   end
   for i = start, pos do
      if string.sub(str, i, i) == "\n" then
         lno = lno + 1
         col = 1
         linecache[#linecache + 1] = { pos = i, lno = lno }
         lastpos = i
      end
      col = col + 1
   end
   return lno, col
end

local function massage_ast (tree, doc)
   if type(tree) == "string" then
      return tree
   end
   if tree.pos then
      tree.lno, tree.col = getline(doc, tree.pos)
      tree.pos = nil
   end
   SU.debug("inputter", "Processing ID:", tree.id)
   if false or tree.id == "comment" then
      SU.debug("inputter", "Discarding comment:", pl.stringx.strip(tree[1]))
      return {}
   elseif
      false
      or tree.id == "document"
      or tree.id == "braced_content"
      or tree.id == "passthrough_content"
      or tree.id == "braced_passthrough_content"
      or tree.id == "env_passthrough_content"
   then
      SU.debug("inputter", "Re-massage subtree", tree.id)
      return massage_ast(tree[1], doc)
   elseif
      false
      or tree.id == "text"
      or tree.id == "passthrough_text"
      or tree.id == "braced_passthrough_text"
      or tree.id == "env_passthrough_text"
   then
      SU.debug("inputter", "  - Collapse subtree")
      return tree[1]
   elseif false or tree.id == "content" or tree.id == "environment" or tree.id == "command" then
      SU.debug("inputter", "  - Massage in place", tree.id)
      for key, val in ipairs(tree) do
         SU.debug("inputter", "    -", val.id)
         if val.id == "content" then
            SU.splice(tree, key, key, massage_ast(val, doc))
         elseif val.id then -- requiring an id discards nodes with no content such as comments
            tree[key] = massage_ast(val, doc)
         end
      end
      return tree
   end
end

function inputter:parse (doc)
   local status, result = pcall(self._parser, doc)
   if not status then
      return SU.error(([[Unable to parse input document to an AST tree. Parser error:

%s  thrown from document beginning]]):format(pl.stringx.indent(result, 6)))
   end
   resetCache()
   local top = massage_ast(result[1], doc)
   local tree
   -- Content not part of a tagged command could either be part of a document
   -- fragment or junk (e.g. comments, whitespace) outside of a document tag. We
   -- need to either capture the document tag only or decide this is a fragment
   -- and wrap it in a document tag.
   for _, leaf in ipairs(top) do
      if leaf.command and (leaf.command == "document" or leaf.command == "sile") then
         tree = leaf
         break
      end
   end
   -- In the event we didn't isolate a top level document tag above, assume this
   -- is a fragment and wrap it in one.
   if not tree then
      tree = { top, command = "document" }
   end
   -- SU.dump(tree)
   return { tree }
end

return inputter

1	local base = require("inputters.base")	5✔
2
3	local _variant = "epnf"	5✔
4	local parser
5	local function load_parser ()
6	parser = require("inputters.sil-" .. _variant)	3✔
7	end
8
9	local inputter = pl.class(base)	5✔
10	inputter._name = "sil"	5✔
11
12	inputter.order = 50	5✔
13
14	inputter.appropriate = function (round, filename, doc)
15	if not parser then	5✔
16	load_parser()	3✔
17	end
18	if round == 1 then	5✔
19	return filename:match(".sil$")	3✔
20	elseif round == 2 then	2✔
21	local sniff = doc:sub(1, 100)	1✔
22	local promising = sniff:match("\\begin") or sniff:match("\\document") or sniff:match("\\sile")	1✔
23	return promising and inputter.appropriate(3, filename, doc) or false	2✔
24	elseif round == 3 then	1✔
25	local status, _ = pcall(parser, doc)	1✔
26	return status	1✔
27	end
28	end
29
30	function inputter:_init (options)	5✔
31	options = options or {}	2✔
32	if options.variant then	2✔
33	_variant = options.variant	×
34	load_parser()	×
35	else
36	if not parser then	2✔
37	load_parser()	×
38	end
39	end
40	-- Save time when parsing strings by only setting up the grammar once per
41	-- instantiation then re-using it on every use.
42	self._parser = parser	2✔
43	base._init(self)	2✔
44	end
45
46	local linecache = {}	5✔
47	local lno, col, lastpos
48	local function resetCache ()
49	lno = 1	2✔
50	col = 1	2✔
51	lastpos = 0	2✔
52	linecache = { { lno = 1, pos = 1 } }	2✔
53	end
54
55	local function getline (str, pos)
56	local start = 1	68✔
57	lno = 1	68✔
58	if pos > lastpos then	68✔
59	lno = linecache[#linecache].lno	66✔
60	start = linecache[#linecache].pos + 1	66✔
61	col = 1	66✔
62	else
63	for j = 1, #linecache - 1 do	2✔
64	if linecache[j + 1].pos >= pos then	2✔
65	lno = linecache[j].lno	2✔
66	col = pos - linecache[j].pos	2✔
67	return lno, col	2✔
68	end
69	end
70	end
71	for i = start, pos do	1,248✔
72	if string.sub(str, i, i) == "\n" then	2,364✔
73	lno = lno + 1	16✔
74	col = 1	16✔
75	linecache[#linecache + 1] = { pos = i, lno = lno }	16✔
76	lastpos = i	16✔
77	end
78	col = col + 1	1,182✔
79	end
80	return lno, col	66✔
81	end
82
83	local function massage_ast (tree, doc)
84	if type(tree) == "string" then	103✔
85	return tree	×
86	end
87	if tree.pos then	103✔
88	tree.lno, tree.col = getline(doc, tree.pos)	136✔
89	tree.pos = nil	68✔
90	end
91	SU.debug("inputter", "Processing ID:", tree.id)	103✔
92	if false or tree.id == "comment" then	103✔
93	SU.debug("inputter", "Discarding comment:", pl.stringx.strip(tree[1]))	×
94	return {}	×
95	elseif	×
96	false
97	or tree.id == "document"	103✔
98	or tree.id == "braced_content"	103✔
99	or tree.id == "passthrough_content"	92✔
100	or tree.id == "braced_passthrough_content"	92✔
101	or tree.id == "env_passthrough_content"	92✔
102	then
103	SU.debug("inputter", "Re-massage subtree", tree.id)	11✔
104	return massage_ast(tree[1], doc)	11✔
105	elseif	×
106	false
107	or tree.id == "text"	92✔
108	or tree.id == "passthrough_text"	71✔
109	or tree.id == "braced_passthrough_text"	71✔
110	or tree.id == "env_passthrough_text"	71✔
111	then
112	SU.debug("inputter", " - Collapse subtree")	21✔
113	return tree[1]	21✔
114	elseif false or tree.id == "content" or tree.id == "environment" or tree.id == "command" then	71✔
115	SU.debug("inputter", " - Massage in place", tree.id)	71✔
116	for key, val in ipairs(tree) do	185✔
117	SU.debug("inputter", " -", val.id)	114✔
118	if val.id == "content" then	114✔
119	SU.splice(tree, key, key, massage_ast(val, doc))	39✔
120	elseif val.id then -- requiring an id discards nodes with no content such as comments	101✔
121	tree[key] = massage_ast(val, doc)	154✔
122	end
123	end
124	return tree	71✔
125	end
126	end
127
128	function inputter:parse (doc)	5✔
129	local status, result = pcall(self._parser, doc)	2✔
130	if not status then	2✔
131	return SU.error(([[Unable to parse input document to an AST tree. Parser error:	×
132
133	%s thrown from document beginning]]):format(pl.stringx.indent(result, 6)))	×
134	end
135	resetCache()	2✔
136	local top = massage_ast(result[1], doc)	2✔
137	local tree
138	-- Content not part of a tagged command could either be part of a document
139	-- fragment or junk (e.g. comments, whitespace) outside of a document tag. We
140	-- need to either capture the document tag only or decide this is a fragment
141	-- and wrap it in a document tag.
142	for _, leaf in ipairs(top) do	2✔
143	if leaf.command and (leaf.command == "document" or leaf.command == "sile") then	2✔
144	tree = leaf	2✔
145	break	2✔
146	end
147	end
148	-- In the event we didn't isolate a top level document tag above, assume this
149	-- is a fragment and wrap it in one.
150	if not tree then	2✔
151	tree = { top, command = "document" }	×
152	end
153	-- SU.dump(tree)
154	return { tree }	2✔
155	end
156
157	return inputter	5✔

sile-typesetter / sile / 9304191631

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