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peggy
/*
GITHUB MARKDOWN EXTRACTOR RULES
https://guides.github.com/features/mastering-markdown/
http://www.table-ascii.com/
http://www.loc.gov/marc/specifications/specchartables.html
http://www.utf8-chartable.de/unicode-utf8-table.pl
*/
{
var others = [];
function extractList(list, index) {
var headings = [], lists = [], sections= [],
italics = [], strikethroughs= [], bolds= [],
lists = [], listsOrdered= [], tasks= [],
references= [], codes= [], i;
for (i = 0; i < list.length; i++) {
if (list[i].heading)
headings.push(list[i].heading);
if (list[i].lists)
lists.push(list[i].lists);
if (list[i].section)
sections.push(list[i].section);
if (list[i].bold)
bolds.push(list[i].bold);
if (list[i].italic)
italics.push(list[i].italic);
if (list[i].strikethrough)
strikethroughs.push(list[i].strikethrough);
if (list[i].listsOrdered)
listsOrdered.push(list[i].listsOrdered);
if (list[i].tasks)
tasks.push(list[i].tasks);
if (list[i].references)
references.push(list[i].references);
if (list[i].code) {
codes.push({
type: list[i].type,
code: list[i].code[0]
});
}
}
return {
bolds: bolds,
codes: codes,
headings: headings,
italics: italics,
italics: italics,
references: references,
lists: lists,
listsOrdered: listsOrdered,
sections: sections,
strikethroughs: strikethroughs,
tasks: tasks
};
}
function isImage(link) {
return link.indexOf(".png") > 0 || link.indexOf(".gif") > 0 || link.indexOf(".jpg") > 0 || link.indexOf(".jpeg") > 0;
}
}
start
= info:Markdown+ {
return extractList(info);
}
Markdown
= EndOfLine / Heading / Bold / Italic / Strikethrough / Tasks / Lists / OrderedLists / InlineCode / MultiplelLineCode / References / Section / Others
Digit1_9 = [1-9]
EOF = !.
crlf = '\r\n' / '\r' / '\n'
EatLine = (!crlf !EOF .)*
EndOfLine = ('\r\n' / '\n' / '\r')+
Space = ' '+ / '\t' / EndOfLine
AnyText = [\x20-\x27] / [\x2B-\x40] / [\x41-\x5A] / [\x61-\x7A] / nonascii
ListText = [\x20-\x27] / [\x2B-\x40] / [\x41-\x5A] / [\x60-\x7A] / nonascii
LinkText = [\x20-\x2A] / [\x2B-\x40] / [\x41-\x5B] / [\x61-\x7A] / nonascii
CodeText = [\x20-\x2A] / [\x2B-\x40] / [\x41-\x5F] / [\x61-\x7E] / nonascii / EndOfLine / Space
AnyText2 = [\x20-\x40] / [\x41-\x60] / [\x61-\xFFFF] / nonascii
SectionText = [-]+ / ([\x20-\x40] / [\x41-\x60] / [\x61-\x7A] / nonascii)
Others
= text:AnyText2+ Space? {
return {
others: text.join("")
}
}
Heading
= "#"+ text:AnyText+ Space? {
return {
heading: text.join("")
}
}
/* Sceenshot ------------- */
Section
= text:SectionText+ ('\r\n' / '\n' / '\r') [-]+ EndOfLine? {
return {
section: text.join("")
}
}
/* *Italic* */
Italic
= (AnyText+)? [\x2A] text:AnyText+ [\x2A] Space? {
return {
italic: text.join("")
}
}
/* **Italic** */
Bold
= (AnyText+)? ([\x2A][\x2A] / [\x5F][\x5F]) text:AnyText+ ([\x2A][\x2A] / [\x5F][\x5F]) Space? {
return {
bold: text.join("")
}
}
/* ~~Mistaken text.~~ */
Strikethrough
= [\x7E][\x7E] text:AnyText+ [\x7E][\x7E] Space? {
return {
strikethrough : text.join("")
}
}
ListItem
= ("\x2A " / "\x2D ") text:ListText+ Space? {return text.join("").trim()}
TaskItem
= (("- [x] " / "- [ ] ") text:AnyText+ Space?) {return text.join("").trim()}
OrderedListItem
= " "? (Digit1_9+ "\x2E ") text:AnyText+ Space? {return text.join("").trim()}
Lists
= lists:ListItem+ {
return {
lists: lists
}
}
// - [ ] this is an incomplete item
Tasks
= tasks:TaskItem+ {
return {
tasks: tasks
}
}
OrderedLists
= lists:OrderedListItem+ {
return {
listsOrdered: lists
}
}
Type
= "html" / "javascript"
InlineCode
= AnyText [\x60] text:AnyText+ [\x60] AnyText+ Space? {return text.join("")}
LineCode
= text:CodeText+ {return text.join("").trim()}
TypeHtml
= "html"
TypeJS
= "javascript"
MultiplelLineCode
= "```" type:(TypeJS / TypeHtml)? Space? code:LineCode+ "```" Space? {
return {
code: code,
type: type
}
}
// [Visit GitHub!](www.github.com)
LinkTitle
= [\x5B] text:LinkText+ [\x5D] {return text.join("")}
LinkRef
= [\x28] text:AnyText+ [\x29] {return text.join("")}
References
= (AnyText+ / "") title:LinkTitle href:LinkRef Space? {
return {
references: {
title: title,
href: href,
image: isImage(href)
}
}
}
/* Macros */
h
= [0-9a-f]i
nonascii
= [\x80-\uFFFF]
unicode
= "\\" digits:$(h h? h? h? h? h?) ("\r\n" / [ \t\r\n\f])? {
return String.fromCharCode(parseInt(digits, 16));
}
escape
= unicode
/ "\\" ch:[^\r\n\f0-9a-f]i { return ch; }
nmstart
= [_a-z]i
/ nonascii
/ escape
nmchar
= [_a-z0-9-]i
/ nonascii
/ escape
string1
= '"' chars:([^\n\r\f\\"] / "\\" nl:nl { return ""; } / escape)* '"' {
return chars.join("");
}
string2
= "'" chars:([^\n\r\f\\'] / "\\" nl:nl { return ""; } / escape)* "'" {
return chars.join("");
}
string
= chars: (string1 / [_a-zA-Z0-9-\n]+) { return chars.join("")}
comment
= "/*" [^*]* "*"+ ([^/*] [^*]* "*"+)* "/"
ident
= prefix:$"-"? start:nmstart chars:nmchar* {
return prefix + start + chars.join("");
}
name
= chars:nmchar+ { return chars.join(""); }
num
= [+-]? ([0-9]+ / [0-9]* "." [0-9]+) ("e" [+-]? [0-9]+)? {
return parseFloat(text());
}
url
= chars:([!#$%&*-\[\]-~] / nonascii / escape)* { return chars.join(""); }
s
= [ \t\r\n\f]+
w
= s?
nl
= "\n"
/ "\r\n"
/ "\r"
/ "\f"
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