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Code Issues Releases Wiki Activity

Merge branch 'feature/markdown-tooling' into premerge

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Jonas Schäfer 2021-03-02 17:44:41 +01:00
commit bd5bef5cf1
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408
tools/2xep.lua Normal file
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-- XEP output format for pandoc
--
-- Based on the pandoc sample.lua HTML writer
--
-- Invoke with: pandoc -t 2xep.lua
--
-- Based on `data/sample.lua` from pandoc.
--
-- Modifications released under the MIT license.
-- Copyright (C) 2021 Kim Alvefur
-- luacheck: globals Blocksep Doc Space SoftBreak Str LineBreak Emph Strong Subscript Superscript SmallCaps Strikeout
-- luacheck: globals Link Image Code InlineMath DisplayMath SingleQuoted DoubleQuoted Note Span RawInline Cite Plain
-- luacheck: globals Para Header BlockQuote HorizontalRule LineBlock CodeBlock BulletList OrderedList DefinitionList
-- luacheck: globals CaptionedImage Table RawBlock Div
local escape_table = { ["'"] = "&apos;", ["\""] = "&quot;", ["<"] = "&lt;", [">"] = "&gt;", ["&"] = "&amp;" };
local function escape(s, in_attribute)
return (string.gsub(s, in_attribute and "['&<>\"]" or "[&<>]", escape_table));
end
local sectionstack = {};
-- 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
-- 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.
-- This gives you a fragment. You could use the metadata table to
-- fill variables in a custom lua template. Or, pass `--template=...`
-- to pandoc, and pandoc will add do the template processing as
-- usual.
function Doc(body, metadata, variables)
local buffer = { [[
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE xep SYSTEM 'xep.dtd' [
<!ENTITY % ents SYSTEM 'xep.ent'>
%ents;
]>
<?xml-stylesheet type='text/xsl' href='xep.xsl'?>
<xep><header>]]
}
local function add(s)
table.insert(buffer, s)
end
local header_schema = [[
(title , abstract , legal , number , status , lastcall* ,
interim* , type , sig , approver* , dependencies , supersedes ,
supersededby , shortname , schemaloc* , registry? , discuss? ,
expires? , author+ , revision+ , councilnote?)
]];
for field, r in string.gmatch(header_schema, "(%w+)(%p?)") do
local v = metadata[field] or variables[field];
if not v then
if field == "legal" then
add("&LEGALNOTICE;");
goto next;
elseif field == "supersedes" or field == "supersededby" then
add(("<%s/>"):format(field));
goto next;
elseif r ~= "*" and r ~= "?" then
error(string.format("Missing required metadata field '%s'", field));
else
io.stderr:write(string.format("Missing optional metadata field '%s'\n", field));
goto next;
end
end
if field == "number" then
assert(tonumber(v) or v == "xxxx", "Invalid XEP number");
if v ~= "xxxx" then
v = string.format("%04d", tonumber(v));
end
end
if type(v) == "table" then
for sk, sv in pairs(v) do
add(string.format("<%s>", field));
if type(sk) == "string" then
add(("<%s>%s</%s>"):format(sk, tostring(sv), sk));
elseif field == "author" then
local first, last = sv:match("(%S+)%s+(%S+)"); -- Names are hard
add(("<firstname>%s</firstname>"):format(first));
add(("<surname>%s</surname>"):format(last));
-- Why is there HTML in the thing?
for typ, addr in sv:gmatch("%shref='(%a+):([^']+)") do
if typ == "mailto" then
add(("<email>%s</email>"):format(addr));
elseif typ == "xmpp" then
add(("<jid>%s</jid>"):format(addr));
end
end
elseif field == "dependencies" then
add(("<spec>%s</spec>"):format(tostring(sv)));
elseif field == "revision" then
for rev_field in string.gmatch("( version, date, initials )", "%w+") do
add(("<%s>%s</%s>"):format(rev_field, tostring(sv[rev_field]), rev_field));
end
add("<remark>");
for _, remark in ipairs(sv.remark) do
add(("<p>%s</p>"):format(remark));
end
add("</remark>");
else
add(("<%s>%s</%s>"):format(field, tostring(sv), field));
end
add(string.format("</%s>", field));
end
else
add(("<%s>%s</%s>"):format(field, tostring(v), field));
end
::next::
end
add("</header>");
add(body)
for i = 1, #sectionstack do
add("</section"..sectionstack[i]..">");
end
add("</xep>\n");
return table.concat(buffer,'\n') .. '\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 SoftBreak()
return "\n"
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, attr)
return "<a href='" .. escape(src,true) .. "' title='" ..
escape(tit,true) .. "'>" .. s .. "</a>"
end
function Image(s, src, tit, attr)
return "<img src='" .. escape(src,true) .. "' title='" ..
escape(tit,true) .. "'/>"
end
function Code(s, attr)
return "<tt" .. attributes(attr) .. ">" .. escape(s) .. "</tt>"
end
function InlineMath(s)
return "\\(" .. escape(s) .. "\\)"
end
function DisplayMath(s)
return "\\[" .. escape(s) .. "\\]"
end
function SingleQuoted(s)
return "'" .. s .. "'"
end
function DoubleQuoted(str)
return escape('"' .. str .. '"');
end
function Note(s)
return "<note>" .. s .. "</note>";
end
function Span(s, attr)
return "<span" .. attributes(attr) .. ">" .. s .. "</span>"
end
function RawInline(format, str)
if format == "html" then
return str
else
return ''
end
end
function Cite(s, cs)
local ids = {}
for _,cit in ipairs(cs) do
table.insert(ids, cit.citationId)
end
return "<span class=\"cite\" data-citation-ids=\"" .. table.concat(ids, ",") ..
"\">" .. 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)
local ret = ""
if sectionstack[1] and sectionstack[#sectionstack] >= lev then
repeat
ret = ret .. "</section"..table.remove(sectionstack)..">"
until sectionstack[1] == nil or sectionstack[#sectionstack] == lev -1;
end
table.insert(sectionstack, lev);
attr.topic = s;
attr.anchor, attr.id = attr.id, nil;
ret = ret .. "<section" .. lev .. attributes(attr) .. ">"
return ret;
end
function BlockQuote(s)
return "<blockquote>\n" .. s .. "\n</blockquote>"
end
function HorizontalRule()
return "<hr/>"
end
function LineBlock(ls)
return '<div style="white-space: pre-line;">' .. table.concat(ls, '\n') ..
'</div>'
end
local function has(haystack, needle) --> boolean
if type(haystack) == "table" then
for _, v in ipairs(haystack) do
if v == needle then return true; end
end
elseif type(haystack) == "string" then
for v in haystack:gmatch("%S+") do
if v == needle then return true; end
end
else
error("unhandled haystack type "..type(haystack))
end
return false;
end
function CodeBlock(s, attr)
if attr and attr.class and has(attr.class, "example") then
return "<example><![CDATA[".. s .. "]]></example>"
else
return "<code"..attributes(attr).."><![CDATA[".. s .. "]]></code>"
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
function DefinitionList(items)
local buffer = {}
for _,item in pairs(items) do
local k, v = next(item)
table.insert(buffer,"<di><dt>" .. k .. "</dt>\n<dd>" ..
table.concat(v,"</dd>\n<dd>") .. "</dd></di>")
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.
local 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
function CaptionedImage(src, tit, caption, attr)
return '<div class="figure">\n<img src="' .. escape(src,true) ..
'" title="' .. escape(tit,true) .. '"/>\n' ..
'<p class="caption">' .. caption .. '</p>\n</div>'
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("%.0f%%", 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 not empty_header then
add('<tr class="header">')
for _,h in pairs(header_row) do
add(h)
end
add('</tr>')
else
-- head = "" -- XXX What is this?
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 RawBlock(format, str)
if format == "html" then
return str
else
return ''
end
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)

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#!/bin/bash
# md-diff
# arguments: file commit commit [diff tool with args]
if [ $# -lt 3 ]; then
echo 'arguments: file commit commit [diff tool with args]' >&2
exit 1;
fi
${4:-diff} \
<(git show "$2:$1" | ${0%/*}/xep2md.sh -) \
<(git show "$3:$1" | ${0%/*}/xep2md.sh -)

626
tools/xep2md.lua Normal file
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#!/usr/bin/env lua5.3
-- XEP to Markdown converter
--
-- Copyright (C) 2021 Kim Alvefur
--
-- This file is released under the MIT license.
--
-- Invoke with:
-- xmllint --nonet --noent --loaddtd "$@" | lua5.3 -lluarocks.loader xep2md.lua
-- Inlined util.events from Prosody, you may wanna skip ahead ~160 lines
-- or so to the main script.
package.preload["util.events"] = (function()
-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local pairs = pairs;
local t_insert = table.insert;
local t_remove = table.remove;
local t_sort = table.sort;
local setmetatable = setmetatable;
local next = next;
local _ENV = nil;
local function new()
local handlers = {};
local global_wrappers;
local wrappers = {};
local event_map = {};
local function _rebuild_index(handlers, event)
local _handlers = event_map[event];
if not _handlers or next(_handlers) == nil then return; end
local index = {};
for handler in pairs(_handlers) do
t_insert(index, handler);
end
t_sort(index, function(a, b) return _handlers[a] > _handlers[b]; end);
handlers[event] = index;
return index;
end;
setmetatable(handlers, { __index = _rebuild_index });
local function add_handler(event, handler, priority)
local map = event_map[event];
if map then
map[handler] = priority or 0;
else
map = {[handler] = priority or 0};
event_map[event] = map;
end
handlers[event] = nil;
end;
local function remove_handler(event, handler)
local map = event_map[event];
if map then
map[handler] = nil;
handlers[event] = nil;
if next(map) == nil then
event_map[event] = nil;
end
end
end;
local function get_handlers(event)
return handlers[event];
end;
local function add_handlers(handlers)
for event, handler in pairs(handlers) do
add_handler(event, handler);
end
end;
local function remove_handlers(handlers)
for event, handler in pairs(handlers) do
remove_handler(event, handler);
end
end;
local function _fire_event(event_name, event_data)
local h = handlers[event_name];
if h then
for i=1,#h do
local ret = h[i](event_data);
if ret ~= nil then return ret; end
end
end
end;
local function fire_event(event_name, event_data)
local w = wrappers[event_name] or global_wrappers;
if w then
local curr_wrapper = #w;
local function c(event_name, event_data)
curr_wrapper = curr_wrapper - 1;
if curr_wrapper == 0 then
if global_wrappers == nil or w == global_wrappers then
return _fire_event(event_name, event_data);
end
w, curr_wrapper = global_wrappers, #global_wrappers;
return w[curr_wrapper](c, event_name, event_data);
else
return w[curr_wrapper](c, event_name, event_data);
end
end
return w[curr_wrapper](c, event_name, event_data);
end
return _fire_event(event_name, event_data);
end
local function add_wrapper(event_name, wrapper)
local w;
if event_name == false then
w = global_wrappers;
if not w then
w = {};
global_wrappers = w;
end
else
w = wrappers[event_name];
if not w then
w = {};
wrappers[event_name] = w;
end
end
w[#w+1] = wrapper;
end
local function remove_wrapper(event_name, wrapper)
local w;
if event_name == false then
w = global_wrappers;
else
w = wrappers[event_name];
end
if not w then return; end
for i = #w, 1 do
if w[i] == wrapper then
t_remove(w, i);
end
end
if #w == 0 then
if event_name == nil then
global_wrappers = nil;
else
wrappers[event_name] = nil;
end
end
end
return {
add_handler = add_handler;
remove_handler = remove_handler;
add_handlers = add_handlers;
remove_handlers = remove_handlers;
get_handlers = get_handlers;
wrappers = {
add_handler = add_wrapper;
remove_handler = remove_wrapper;
};
add_wrapper = add_wrapper;
remove_wrapper = remove_wrapper;
fire_event = fire_event;
_handlers = handlers;
_event_map = event_map;
};
end
return {
new = new;
};
end);
local lxp = require "lxp";
local lom = require "lxp.lom";
local events = require"util.events".new();
local have_yaml, yaml = pcall(require, "lyaml");
local handler = {};
local stack = {};
local meta = {};
local no_write = true;
local function output(...)
if no_write then return end
io.write(...);
end
local function print_empty_line()
output("\n\n");
return true;
end
local text_buf;
-- FIXME LuaExpat claims to not require this hack
local function CharacterDataDone()
if text_buf then
local text = table.concat(text_buf);
if text ~= "" then
events.fire_event("#text", { stack = stack, text = text });
end
text_buf = nil;
end
end
function handler:StartElement(tagname, attr)
CharacterDataDone();
tagname = tagname:gsub("^([^\1]+)\1", "{%1}");
table.insert(stack, tagname)
events.fire_event(tagname, { stack = stack, attr = attr });
end
function handler:CharacterData(data)
if text_buf then
table.insert(text_buf, data)
else
text_buf = { data };
end
end
function handler:EndElement()
CharacterDataDone();
events.fire_event(table.remove(stack) .. "/", { stack = stack });
end
-- Oh god oh god we're all gonna die!
local function escape_text(event)
event.text = event.text:gsub("['&<>\"]", "\\%1"):gsub("^%s+", ""):gsub("%s+$", ""):gsub("%s+", " ");
end
events.add_handler("#text", escape_text, 1000);
events.add_handler("#text", function (event)
local stack = event.stack;
return events.fire_event(stack[#stack].."#text", event);
end, 10);
events.add_handler("#text", function (event)
if event.text:find"%S" then
output(event.text);
end
return true;
end);
local header_schema = [[
(title , abstract , legal , number , status , lastcall* ,
interim* , type , sig , approver* , dependencies , supersedes ,
supersededby , shortname , schemaloc* , registry? , discuss? ,
expires? , author+ , revision+ , councilnote?)
]];
for field in header_schema:gmatch("%w+") do
events.add_handler(field.."#text", function (event)
meta[field] = event.text:match("%S.*%S");
return true;
end);
end
do
local author;
events.add_handler("author", function (event)
author = { };
return true;
end);
for _, field in pairs{"firstname", "surname", "email", "jid"} do
events.add_handler(field.."#text", function (event) author[field] = event.text; return true; end);
end
events.add_handler("author/", function (event)
if author.email and author.jid then
author = string.format("%s %s <%s> <xmpp:%s>", author.firstname, author.surname, author.email, author.jid);
elseif author.email then
author = string.format("%s %s <%s>", author.firstname, author.surname, author.email);
else
author = string.format("%s %s", author.firstname, author.surname);
end
local authors = meta.author;
if not authors then
meta.author = { author; };
else
table.insert(authors, author);
end
author = nil;
return true;
end);
end
do
local revision;
for _, field in pairs{"version", "date", "initials"} do
events.add_handler(field.."#text", function (event)
if revision then
revision[field] = event.text;
return true;
end
end);
end
local function handle_remark(event)
if revision and event.text and event.text:match("%S") then
table.insert(revision.remark, event.text);
end
end
events.add_handler("remark#text", handle_remark, 100);
events.add_handler("remark", function (event)
events.add_handler("p#text", handle_remark, 100);
end);
events.add_handler("remark/", function (event)
events.remove_handler("p#text", handle_remark);
end);
events.add_handler("revision", function (event)
revision = {remark={}};
return true;
end);
local revisions = {};
events.add_handler("revision/", function (event)
table.insert(revisions, revision);
meta.revision = revisions;
revision = nil;
return true;
end);
end
events.add_handler("date#text", function (event)
if meta and not meta.date then
meta.date = event.text;
end
end, 1);
events.add_handler("spec#text", function (event)
if not meta then return end
local kind = stack[#stack-1];
if meta[kind] then
table.insert(meta[kind], event.text);
else
meta[kind] = { event.text };
end
end);
events.add_handler("header/", function (event)
no_write = false;
if next(meta) ~= nil then
if meta.title and meta.number then
meta.title = "XEP-"..meta.number..": "..meta.title;
end
if have_yaml and yaml.dump then
output(yaml.dump({meta}));
else
print("% "..meta.title);
if type(meta.author) == "table" then
print("% "..table.concat(meta.author, "; "));
elseif meta.author then
print("% "..meta.author);
else
print("% ");
end
if meta.date then
print("% "..meta.date);
end
end
end
return true;
end);
for i = 1, 6 do
events.add_handler("section"..i, function ()
output("\n");
end, 10);
events.add_handler("section"..i.."/", function ()
output("\n");
return true;
end, 10);
events.add_handler("section"..i, function (event)
assert(event.attr.topic, "no @topic");
output(string.rep("#", i), " ", event.attr.topic);
if event.attr.anchor and event.attr.anchor ~= "" then
output(" {#", event.attr.anchor, "}\n")
else
output("\n");
end
return true;
end);
end
events.add_handler("section1", function (event)
output(event.attr.topic);
if event.attr.anchor and event.attr.anchor ~= "" then
output(" {#", event.attr.anchor, "}");
end
output("\n", string.rep("=", #event.attr.topic), "\n\n");
return true;
end, 1);
events.add_handler("section2", function (event)
output(event.attr.topic);
if event.attr.anchor and event.attr.anchor ~= "" then
output(" {#", event.attr.anchor, "}");
end
output("\n", string.rep("-", #event.attr.topic), "\n\n");
return true;
end, 1);
local function normalize_whitespace(event)
event.text = event.text:gsub("%s+", " ")
-- event.text = event.text:match("^%s*(.-)%s*$")
end
events.add_handler("p#text", normalize_whitespace, 10);
events.add_handler("li#text", normalize_whitespace, 10);
events.add_handler("dt#text", normalize_whitespace, 10);
events.add_handler("dd#text", normalize_whitespace, 10);
local example_count = 1;
events.add_handler("example", function (event)
output("\n#### Example ", example_count, ". ");
if event.attr.caption then
output(event.attr.caption, " ")
end
output("{#example-", example_count, " .unnumbered}\n\n")
example_count = example_count + 1;
output("``` {.xml .example}\n");
events.remove_handler("#text", escape_text);
end);
events.add_handler("example#text", function (event)
local example_text = event.text:match("^%s*(.-)%s*$");
output(example_text, "\n");
return true;
end);
events.add_handler("example/", function ()
events.add_handler("#text", escape_text, 1000);
output("```\n\n");
return true;
end);
events.add_handler("note", function (event)
output(" ^[");
return true;
end);
events.add_handler("note/", function (event)
output("]");
return true;
end);
-- TODO magically import citation data
events.add_handler("cite#text", function (event)
output("**", event.text, "**");
if meta.references then
local refid = event.text:gsub("%W", ""):lower();
if meta.references[refid] then
output("[@", refid, "]");
end
end
return true;
end);
local url;
events.add_handler("link", function (event)
url = event.attr.url;
if url then
output("[");
end
return true;
end);
events.add_handler("link/", function (event)
if url then
output("](", url, ")");
url = nil;
end
return true;
end);
local list_depth, list_type = 0, "ul";
events.add_handler("ul", function ()
list_depth = list_depth + 1;
list_type = "ul";
end);
events.add_handler("ul/", function (event)
local stack = event.stack;
list_depth = list_depth - 1;
for i = #stack, 1, -1 do
local element = stack[i]
if element == "ul" or element == "ol" then
list_type = element;
break;
end
end
return true;
end);
events.add_handler("li", function (event)
for i = 2, list_depth do
output(" ");
end
if list_type == "ul" then
output("- ");
elseif list_type == "ul" then
output("#. ");
end
return true;
end);
events.add_handler("li#text", function (event)
local text = event.text:gsub("%s+", " ");
output(text);
return true;
end);
events.add_handler("dd#text", function (event)
output("\n: ");
end);
events.add_handler("li/", print_empty_line, 1);
events.add_handler("ul", print_empty_line, 1);
events.add_handler("ul/", print_empty_line, 1);
events.add_handler("ol", print_empty_line, 1);
events.add_handler("ol/", print_empty_line, 1);
events.add_handler("p/", print_empty_line, 1);
events.add_handler("dd/", print_empty_line, 1);
local function printcell(event)
output("|");
end
events.add_handler("th", printcell, 1);
events.add_handler("td", printcell, 1);
events.add_handler("tr/", printcell, 3);
events.add_handler("tr", function () output(" ") end, 1);
events.add_handler("tr/", function () output("\n") end, 1);
local th;
events.add_handler("table", function () th = 0; end);
events.add_handler("table/", function () th = 0; end);
events.add_handler("th", function () if th then th = th + 1; end end);
events.add_handler("tr/", function () if th then output("\n");output(" |"); output(string.rep("---|", th)); th = nil end end, 2);
-- Non-example code blocks, like schemas
events.add_handler("code", function (event)
output("```xml\n");
events.remove_handler("#text", escape_text);
return true;
end);
events.add_handler("code#text", function (event)
local example_text = event.text:match("^%s*(.-)%s*$");
output(example_text, "\n");
return true;
end);
events.add_handler("code/", function ()
events.add_handler("#text", escape_text, 1000);
output("```\n\n");
return true;
end);
if meta.references then
events.add_handler("xep/", function ()
output("\n\n# References {#references}\n\n");
end);
end
if arg[1] == "--debug" then
events.add_wrapper(false, function (fire_event, event_name, event_data)
io.stderr:write("D: "..event_name.."\n");
io.stderr:write("D: /"..table.concat(event_data.stack, "/").."\n");
return fire_event(event_name, event_data);
end);
setmetatable(handler, {
__index = function (_, missinghandler)
io.stderr:write("D: Missing handler: "..missinghandler.."\n");
return function (parser, ...)
io.stderr:write("D: ", missinghandler, "(");
local count = select('#', ...);
for i = 1, count do
local arg = select(i, ...);
local arg_t = type(arg);
io.stderr:write(arg_t, ":");
if arg_t == "string" then
io.stderr:write(string.format("%q", arg));
else
io.stderr:write(tostring(arg));
end
if i ~= count then
io.stderr:write(", ");
end
end
io.stderr:write(")\n");
return "";
end;
end;
});
end
local parser = lxp.new(handler, "\1");
parser:setbase(".");
local function chunks(file, size)
return function ()
return file:read(size);
end
end
if not have_yaml then
io.stderr:write("lua-yaml missing, header metadata will be incomplete\n");
end
for chunk in chunks(io.stdin, 4096) do
local ok, err, line, col = parser:parse(chunk);
if not ok then
io.stderr:write("E: "..err.." on line "..line..", col "..col.."\n");
os.exit(1);
end
end
parser:close();

3
tools/xep2md.sh Executable file
View File

@ -0,0 +1,3 @@
#!/bin/bash
xmllint --nonet --noent --loaddtd "$@" | lua5.3 -lluarocks.loader ${0%/*}/xep2md.lua