97 lines
2.3 KiB
JavaScript
97 lines
2.3 KiB
JavaScript
var _utils = require('../utils');
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var replace = _utils.replace;
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var merge = _utils.merge;
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var noop = _utils.noop;
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/**
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* Inline-Level Grammar
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*/
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var inline = {
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escape: /^\\([\\`*{}\[\]()#$+\-.!_>])/,
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autolink: /^<([^ >]+(@|:\/)[^ >]+)>/,
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url: noop,
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html: /^<!--[\s\S]*?-->|^<(\w+(?!:\/|[^\w\s@]*@)\b)*?(?:"[^"]*"|'[^']*'|[^'">])*?>([\s\S]*?)?<\/\1>|^<(\w+(?!:\/|[^\w\s@]*@)\b)(?:"[^"]*"|'[^']*'|[^'">])*?>/,
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link: /^!?\[(inside)\]\(href\)/,
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reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/,
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nolink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/,
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reffn: /^!?\[\^(inside)\]/,
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strong: /^__([\s\S]+?)__(?!_)|^\*\*([\s\S]+?)\*\*(?!\*)/,
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em: /^\b_((?:__|[\s\S])+?)_\b|^\*((?:\*\*|[\s\S])+?)\*(?!\*)/,
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code: /^(`+)\s*([\s\S]*?[^`])\s*\1(?!`)/,
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br: /^ {2,}\n(?!\s*$)/,
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del: noop,
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text: /^[\s\S]+?(?=[\\<!\[_*`$]| {2,}\n|$)/,
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math: /^\$\$\s*([\s\S]*?[^\$])\s*\$\$(?!\$)/,
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};
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inline._inside = /(?:\[[^\]]*\]|[^\[\]]|\](?=[^\[]*\]))*/;
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inline._href = /\s*<?([\s\S]*?)>?(?:\s+['"]([\s\S]*?)['"])?\s*/;
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inline.link = replace(inline.link)
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('inside', inline._inside)
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('href', inline._href)
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();
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inline.reflink = replace(inline.reflink)
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('inside', inline._inside)
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();
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inline.reffn = replace(inline.reffn)
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('inside', inline._inside)
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();
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/**
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* Normal Inline Grammar
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*/
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inline.normal = merge({}, inline);
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/**
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* Pedantic Inline Grammar
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*/
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inline.pedantic = merge({}, inline.normal, {
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strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
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em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/
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});
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/**
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* GFM Inline Grammar
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*/
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inline.gfm = merge({}, inline.normal, {
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escape: replace(inline.escape)('])', '~|])')(),
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url: /^(https?:\/\/[^\s<]+[^<.,:;"')\]\s])/,
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del: /^~~(?=\S)([\s\S]*?\S)~~/,
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text: replace(inline.text)
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(']|', '~]|')
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('|', '|https?://|')
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()
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});
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/**
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* GitBook Grammar
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*/
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inline.gitbook = merge({}, inline.gfm, {
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// Template variable
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tplvar: /^{{\s*(.*?)\s*(?=}})}}/,
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// Template expression
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tplexpr: /^{%\s*(.*?)\s*(?=%})%}/,
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});
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inline.gitbook.text = replace(inline.gfm.text)
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('~]|', '~]|'+inline.gitbook.tplvar.source+'|'+inline.gitbook.tplexpr.source+'|')
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();
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/**
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* GFM + Line Breaks Inline Grammar
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*/
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inline.breaks = merge({}, inline.gfm, {
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br: replace(inline.br)('{2,}', '*')(),
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text: replace(inline.gfm.text)('{2,}', '*')()
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});
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module.exports = inline;
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