1 files changed, 0 insertions, 324 deletions
diff --git a/lua/sample.lua b/lua/sample.lua
deleted file mode 100644
index a0c3c29..0000000
--- a/lua/sample.lua
+++ /dev/null

@@ -1,324 +0,0 @@
-- This is a sample custom writer for pandoc.  It produces output
-- that is very similar to that of pandoc's HTML writer.
-- There is one new feature: code blocks marked with class 'dot'
-- are piped through graphviz and images are included in the HTML
-- output using 'data:' URLs.
--
-- Invoke with: pandoc -t sample.lua
--
-- Note:  you need not have lua installed on your system to use this
-- custom writer.  However, if you do have lua installed, you can
-- use it to test changes to the script.  'lua sample.lua' will
-- produce informative error messages if your code contains
-- syntax errors.
-- Character escaping
-local function escape(s, in_attribute)
-  return s:gsub("[<>&\"']",
-    function(x)
-      if x == '<' then
-        return '&lt;'
-      elseif x == '>' then
-        return '&gt;'
-      elseif x == '&' then
-        return '&amp;'
-      elseif x == '"' then
-        return '&quot;'
-      elseif x == "'" then
-        return '&#39;'
-      else
-        return x
-      end
-    end)
-end
-- Helper function to convert an attributes table into
-- a string that can be put into HTML tags.
-local function attributes(attr)
-  local attr_table = {}
-  for x,y in pairs(attr) do
-    if y and y ~= "" then
-      table.insert(attr_table, ' ' .. x .. '="' .. escape(y,true) .. '"')
-    end
-  end
-  return table.concat(attr_table)
-end
-- Run cmd on a temporary file containing inp and return result.
-local function pipe(cmd, inp)
-  local tmp = os.tmpname()
-  local tmph = io.open(tmp, "w")
-  tmph:write(inp)
-  tmph:close()
-  local outh = io.popen(cmd .. " " .. tmp,"r")
-  local result = outh:read("*all")
-  outh:close()
-  os.remove(tmp)
-  return result
-end
-- Table to store footnotes, so they can be included at the end.
-local notes = {}
-- Blocksep is used to separate block elements.
-function Blocksep()
-  return "\n\n"
-end
-- This function is called once for the whole document. Parameters:
-- body is a string, metadata is a table, variables is a table.
-- One could use some kind of templating
-- system here; this just gives you a simple standalone HTML file.
-function Doc(body, metadata, variables)
-  local buffer = {}
-  local function add(s)
-    table.insert(buffer, s)
-  end
-  add('<!DOCTYPE html>')
-  add('<html>')
-  add('<head>')
-  add('<title>' .. (metadata['title'] or '') .. '</title>')
-  add('</head>')
-  add('<body>')
-  if metadata['title'] and metadata['title'] ~= "" then
-    add('<h1 class="title">' .. metadata['title'] .. '</h1>')
-  end
-  for _, author in pairs(metadata['author'] or {}) do
-    add('<h2 class="author">' .. author .. '</h2>')
-  end
-  if metadata['date'] and metadata['date'] ~= "" then
-    add('<h3 class="date">' .. metadata.date .. '</h3>')
-  end
-  add(body)
-  if #notes > 0 then
-    add('<ol class="footnotes">')
-    for _,note in pairs(notes) do
-      add(note)
-    end
-    add('</ol>')
-  end
-  add('</body>')
-  add('</html>')
-  return table.concat(buffer,'\n')
-end
-- The functions that follow render corresponding pandoc elements.
-- s is always a string, attr is always a table of attributes, and
-- items is always an array of strings (the items in a list).
-- Comments indicate the types of other variables.
-function Str(s)
-  return escape(s)
-end
-function Space()
-  return " "
-end
-function LineBreak()
-  return "<br/>"
-end
-function Emph(s)
-  return "<em>" .. s .. "</em>"
-end
-function Strong(s)
-  return "<strong>" .. s .. "</strong>"
-end
-function Subscript(s)
-  return "<sub>" .. s .. "</sub>"
-end
-function Superscript(s)
-  return "<sup>" .. s .. "</sup>"
-end
-function SmallCaps(s)
-  return '<span style="font-variant: small-caps;">' .. s .. '</span>'
-end
-function Strikeout(s)
-  return '<del>' .. s .. '</del>'
-end
-function Link(s, src, tit)
-  return "<a href='" .. escape(src,true) .. "' title='" ..
-         escape(tit,true) .. "'>" .. s .. "</a>"
-end
-function Image(s, src, tit)
-  return "<img src='" .. escape(src,true) .. "' title='" ..
-         escape(tit,true) .. "'/>"
-end
-function Code(s, attr)
-  return "<code" .. attributes(attr) .. ">" .. escape(s) .. "</code>"
-end
-function InlineMath(s)
-  return "\\(" .. escape(s) .. "\\)"
-end
-function DisplayMath(s)
-  return "\\[" .. escape(s) .. "\\]"
-end
-function Note(s)
-  local num = #notes + 1
-  -- insert the back reference right before the final closing tag.
-  s = string.gsub(s,
-          '(.*)</', '%1 <a href="#fnref' .. num ..  '">&#8617;</a></')
-  -- add a list item with the note to the note table.
-  table.insert(notes, '<li id="fn' .. num .. '">' .. s .. '</li>')
-  -- return the footnote reference, linked to the note.
-  return '<a id="fnref' .. num .. '" href="#fn' .. num ..
-            '"><sup>' .. num .. '</sup></a>'
-end
-function Span(s, attr)
-  return "<span" .. attributes(attr) .. ">" .. s .. "</span>"
-end
-function Cite(s)
-  return "<span class=\"cite\">" .. s .. "</span>"
-end
-function Plain(s)
-  return s
-end
-function Para(s)
-  return "<p>" .. s .. "</p>"
-end
-- lev is an integer, the header level.
-function Header(lev, s, attr)
-  return "<h" .. lev .. attributes(attr) ..  ">" .. s .. "</h" .. lev .. ">"
-end
-function BlockQuote(s)
-  return "<blockquote>\n" .. s .. "\n</blockquote>"
-end
-function HorizontalRule()
-  return "<hr/>"
-end
-function CodeBlock(s, attr)
-  -- If code block has class 'dot', pipe the contents through dot
-  -- and base64, and include the base64-encoded png as a data: URL.
-  if attr.class and string.match(' ' .. attr.class .. ' ',' dot ') then
-    local png = pipe("base64", pipe("dot -Tpng", s))
-    return '<img src="data:image/png;base64,' .. png .. '"/>'
-  -- otherwise treat as code (one could pipe through a highlighter)
-  else
-    return "<pre><code" .. attributes(attr) .. ">" .. escape(s) ..
-           "</code></pre>"
-  end
-end
-function BulletList(items)
-  local buffer = {}
-  for _, item in pairs(items) do
-    table.insert(buffer, "<li>" .. item .. "</li>")
-  end
-  return "<ul>\n" .. table.concat(buffer, "\n") .. "\n</ul>"
-end
-function OrderedList(items)
-  local buffer = {}
-  for _, item in pairs(items) do
-    table.insert(buffer, "<li>" .. item .. "</li>")
-  end
-  return "<ol>\n" .. table.concat(buffer, "\n") .. "\n</ol>"
-end
-- Revisit association list STackValue instance.
-function DefinitionList(items)
-  local buffer = {}
-  for _,item in pairs(items) do
-    for k, v in pairs(item) do
-      table.insert(buffer,"<dt>" .. k .. "</dt>\n<dd>" ..
-                        table.concat(v,"</dd>\n<dd>") .. "</dd>")
-    end
-  end
-  return "<dl>\n" .. table.concat(buffer, "\n") .. "\n</dl>"
-end
-- Convert pandoc alignment to something HTML can use.
-- align is AlignLeft, AlignRight, AlignCenter, or AlignDefault.
-function html_align(align)
-  if align == 'AlignLeft' then
-    return 'left'
-  elseif align == 'AlignRight' then
-    return 'right'
-  elseif align == 'AlignCenter' then
-    return 'center'
-  else
-    return 'left'
-  end
-end
-- Caption is a string, aligns is an array of strings,
-- widths is an array of floats, headers is an array of
-- strings, rows is an array of arrays of strings.
-function Table(caption, aligns, widths, headers, rows)
-  local buffer = {}
-  local function add(s)
-    table.insert(buffer, s)
-  end
-  add("<table>")
-  if caption ~= "" then
-    add("<caption>" .. caption .. "</caption>")
-  end
-  if widths and widths[1] ~= 0 then
-    for _, w in pairs(widths) do
-      add('<col width="' .. string.format("%d%%", w * 100) .. '" />')
-    end
-  end
-  local header_row = {}
-  local empty_header = true
-  for i, h in pairs(headers) do
-    local align = html_align(aligns[i])
-    table.insert(header_row,'<th align="' .. align .. '">' .. h .. '</th>')
-    empty_header = empty_header and h == ""
-  end
-  if empty_header then
-    head = ""
-  else
-    add('<tr class="header">')
-    for _,h in pairs(header_row) do
-      add(h)
-    end
-    add('</tr>')
-  end
-  local class = "even"
-  for _, row in pairs(rows) do
-    class = (class == "even" and "odd") or "even"
-    add('<tr class="' .. class .. '">')
-    for i,c in pairs(row) do
-      add('<td align="' .. html_align(aligns[i]) .. '">' .. c .. '</td>')
-    end
-    add('</tr>')
-  end
-  add('</table')
-  return table.concat(buffer,'\n')
-end
-function Div(s, attr)
-  return "<div" .. attributes(attr) .. ">\n" .. s .. "</div>"
-end
-- The following code will produce runtime warnings when you haven't defined
-- all of the functions you need for the custom writer, so it's useful
-- to include when you're working on a writer.
-local meta = {}
-meta.__index =
-  function(_, key)
-    io.stderr:write(string.format("WARNING: Undefined function '%s'\n",key))
-    return function() return "" end
-  end
-setmetatable(_G, meta)

diff --git a/lua/sample.lua b/lua/sample.lua deleted file mode 100644 index a0c3c29..0000000 --- a/lua/sample.lua +++ /dev/null
@@ -1,324 +0,0 @@
1	-- This is a sample custom writer for pandoc. It produces output
2	-- that is very similar to that of pandoc's HTML writer.
3	-- There is one new feature: code blocks marked with class 'dot'
4	-- are piped through graphviz and images are included in the HTML
5	-- output using 'data:' URLs.
6	--
7	-- Invoke with: pandoc -t sample.lua
8	--
9	-- Note: you need not have lua installed on your system to use this
10	-- custom writer. However, if you do have lua installed, you can
11	-- use it to test changes to the script. 'lua sample.lua' will
12	-- produce informative error messages if your code contains
13	-- syntax errors.
14
15	-- Character escaping
16	local function escape(s, in_attribute)
17	return s:gsub("[<>&\"']",
18	function(x)
19	if x == '<' then
20	return '<'
21	elseif x == '>' then
22	return '>'
23	elseif x == '&' then
24	return '&'
25	elseif x == '"' then
26	return '"'
27	elseif x == "'" then
28	return '''
29	else
30	return x
31	end
32	end)
33	end
34
35	-- Helper function to convert an attributes table into
36	-- a string that can be put into HTML tags.
37	local function attributes(attr)
38	local attr_table = {}
39	for x,y in pairs(attr) do
40	if y and y ~= "" then
41	table.insert(attr_table, ' ' .. x .. '="' .. escape(y,true) .. '"')
42	end
43	end
44	return table.concat(attr_table)
45	end
46
47	-- Run cmd on a temporary file containing inp and return result.
48	local function pipe(cmd, inp)
49	local tmp = os.tmpname()
50	local tmph = io.open(tmp, "w")
51	tmph:write(inp)
52	tmph:close()
53	local outh = io.popen(cmd .. " " .. tmp,"r")
54	local result = outh:read("*all")
55	outh:close()
56	os.remove(tmp)
57	return result
58	end
59
60	-- Table to store footnotes, so they can be included at the end.
61	local notes = {}
62
63	-- Blocksep is used to separate block elements.
64	function Blocksep()
65	return "\n\n"
66	end
67
68	-- This function is called once for the whole document. Parameters:
69	-- body is a string, metadata is a table, variables is a table.
70	-- One could use some kind of templating
71	-- system here; this just gives you a simple standalone HTML file.
72	function Doc(body, metadata, variables)
73	local buffer = {}
74	local function add(s)
75	table.insert(buffer, s)
76	end
77	add('<!DOCTYPE html>')
78	add('<html>')
79	add('<head>')
80	add('<title>' .. (metadata['title'] or '') .. '</title>')
81	add('</head>')
82	add('<body>')
83	if metadata['title'] and metadata['title'] ~= "" then
84	add('<h1 class="title">' .. metadata['title'] .. '</h1>')
85	end
86	for _, author in pairs(metadata['author'] or {}) do
87	add('<h2 class="author">' .. author .. '</h2>')
88	end
89	if metadata['date'] and metadata['date'] ~= "" then
90	add('<h3 class="date">' .. metadata.date .. '</h3>')
91	end
92	add(body)
93	if #notes > 0 then
94	add('<ol class="footnotes">')
95	for _,note in pairs(notes) do
96	add(note)
97	end
98	add('</ol>')
99	end
100	add('</body>')
101	add('</html>')
102	return table.concat(buffer,'\n')
103	end
104
105	-- The functions that follow render corresponding pandoc elements.
106	-- s is always a string, attr is always a table of attributes, and
107	-- items is always an array of strings (the items in a list).
108	-- Comments indicate the types of other variables.
109
110	function Str(s)
111	return escape(s)
112	end
113
114	function Space()
115	return " "
116	end
117
118	function LineBreak()
119	return "<br/>"
120	end
121
122	function Emph(s)
123	return "<em>" .. s .. "</em>"
124	end
125
126	function Strong(s)
127	return "<strong>" .. s .. "</strong>"
128	end
129
130	function Subscript(s)
131	return "<sub>" .. s .. "</sub>"
132	end
133
134	function Superscript(s)
135	return "<sup>" .. s .. "</sup>"
136	end
137
138	function SmallCaps(s)
139	return '<span style="font-variant: small-caps;">' .. s .. '</span>'
140	end
141
142	function Strikeout(s)
143	return '<del>' .. s .. '</del>'
144	end
145
146	function Link(s, src, tit)
147	return "<a href='" .. escape(src,true) .. "' title='" ..
148	escape(tit,true) .. "'>" .. s .. "</a>"
149	end
150
151	function Image(s, src, tit)
152	return "<img src='" .. escape(src,true) .. "' title='" ..
153	escape(tit,true) .. "'/>"
154	end
155
156	function Code(s, attr)
157	return "<code" .. attributes(attr) .. ">" .. escape(s) .. "</code>"
158	end
159
160	function InlineMath(s)
161	return "\\(" .. escape(s) .. "\\)"
162	end
163
164	function DisplayMath(s)
165	return "\\[" .. escape(s) .. "\\]"
166	end
167
168	function Note(s)
169	local num = #notes + 1
170	-- insert the back reference right before the final closing tag.
171	s = string.gsub(s,
172	'(.*)</', '%1 <a href="#fnref' .. num .. '">↩</a></')
173	-- add a list item with the note to the note table.
174	table.insert(notes, '<li id="fn' .. num .. '">' .. s .. '</li>')
175	-- return the footnote reference, linked to the note.
176	return '<a id="fnref' .. num .. '" href="#fn' .. num ..
177	'"><sup>' .. num .. '</sup></a>'
178	end
179
180	function Span(s, attr)
181	return "<span" .. attributes(attr) .. ">" .. s .. "</span>"
182	end
183
184	function Cite(s)
185	return "<span class=\"cite\">" .. s .. "</span>"
186	end
187
188	function Plain(s)
189	return s
190	end
191
192	function Para(s)
193	return "<p>" .. s .. "</p>"
194	end
195
196	-- lev is an integer, the header level.
197	function Header(lev, s, attr)
198	return "<h" .. lev .. attributes(attr) .. ">" .. s .. "</h" .. lev .. ">"
199	end
200
201	function BlockQuote(s)
202	return "<blockquote>\n" .. s .. "\n</blockquote>"
203	end
204
205	function HorizontalRule()
206	return "<hr/>"
207	end
208
209	function CodeBlock(s, attr)
210	-- If code block has class 'dot', pipe the contents through dot
211	-- and base64, and include the base64-encoded png as a data: URL.
212	if attr.class and string.match(' ' .. attr.class .. ' ',' dot ') then
213	local png = pipe("base64", pipe("dot -Tpng", s))
214	return '<img src="data:image/png;base64,' .. png .. '"/>'
215	-- otherwise treat as code (one could pipe through a highlighter)
216	else
217	return "<pre><code" .. attributes(attr) .. ">" .. escape(s) ..
218	"</code></pre>"
219	end
220	end
221
222	function BulletList(items)
223	local buffer = {}
224	for _, item in pairs(items) do
225	table.insert(buffer, "<li>" .. item .. "</li>")
226	end
227	return "<ul>\n" .. table.concat(buffer, "\n") .. "\n</ul>"
228	end
229
230	function OrderedList(items)
231	local buffer = {}
232	for _, item in pairs(items) do
233	table.insert(buffer, "<li>" .. item .. "</li>")
234	end
235	return "<ol>\n" .. table.concat(buffer, "\n") .. "\n</ol>"
236	end
237
238	-- Revisit association list STackValue instance.
239	function DefinitionList(items)
240	local buffer = {}
241	for _,item in pairs(items) do
242	for k, v in pairs(item) do
243	table.insert(buffer,"<dt>" .. k .. "</dt>\n<dd>" ..
244	table.concat(v,"</dd>\n<dd>") .. "</dd>")
245	end
246	end
247	return "<dl>\n" .. table.concat(buffer, "\n") .. "\n</dl>"
248	end
249
250	-- Convert pandoc alignment to something HTML can use.
251	-- align is AlignLeft, AlignRight, AlignCenter, or AlignDefault.
252	function html_align(align)
253	if align == 'AlignLeft' then
254	return 'left'
255	elseif align == 'AlignRight' then
256	return 'right'
257	elseif align == 'AlignCenter' then
258	return 'center'
259	else
260	return 'left'
261	end
262	end
263
264	-- Caption is a string, aligns is an array of strings,
265	-- widths is an array of floats, headers is an array of
266	-- strings, rows is an array of arrays of strings.
267	function Table(caption, aligns, widths, headers, rows)
268	local buffer = {}
269	local function add(s)
270	table.insert(buffer, s)
271	end
272	add("<table>")
273	if caption ~= "" then
274	add("<caption>" .. caption .. "</caption>")
275	end
276	if widths and widths[1] ~= 0 then
277	for _, w in pairs(widths) do
278	add('<col width="' .. string.format("%d%%", w * 100) .. '" />')
279	end
280	end
281	local header_row = {}
282	local empty_header = true
283	for i, h in pairs(headers) do
284	local align = html_align(aligns[i])
285	table.insert(header_row,'<th align="' .. align .. '">' .. h .. '</th>')
286	empty_header = empty_header and h == ""
287	end
288	if empty_header then
289	head = ""
290	else
291	add('<tr class="header">')
292	for _,h in pairs(header_row) do
293	add(h)
294	end
295	add('</tr>')
296	end
297	local class = "even"
298	for _, row in pairs(rows) do
299	class = (class == "even" and "odd") or "even"
300	add('<tr class="' .. class .. '">')
301	for i,c in pairs(row) do
302	add('<td align="' .. html_align(aligns[i]) .. '">' .. c .. '</td>')
303	end
304	add('</tr>')
305	end
306	add('</table')
307	return table.concat(buffer,'\n')
308	end
309
310	function Div(s, attr)
311	return "<div" .. attributes(attr) .. ">\n" .. s .. "</div>"
312	end
313
314	-- The following code will produce runtime warnings when you haven't defined
315	-- all of the functions you need for the custom writer, so it's useful
316	-- to include when you're working on a writer.
317	local meta = {}
318	meta.__index =
319	function(_, key)
320	io.stderr:write(string.format("WARNING: Undefined function '%s'\n",key))
321	return function() return "" end
322	end
323	setmetatable(_G, meta)
324