forked from projects/fipamo
228 lines
4.7 KiB
JavaScript
228 lines
4.7 KiB
JavaScript
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Prism.languages.markdown = Prism.languages.extend('markup', {});
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Prism.languages.insertBefore('markdown', 'prolog', {
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'blockquote': {
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// > ...
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pattern: /^>(?:[\t ]*>)*/m,
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alias: 'punctuation'
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},
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'code': [
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{
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// Prefixed by 4 spaces or 1 tab
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pattern: /^(?: {4}|\t).+/m,
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alias: 'keyword'
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},
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{
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// `code`
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// ``code``
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pattern: /``.+?``|`[^`\n]+`/,
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alias: 'keyword'
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},
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{
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// ```optional language
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// code block
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// ```
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pattern: /^```[\s\S]*?^```$/m,
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greedy: true,
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inside: {
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'code-block': {
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pattern: /^(```.*(?:\r?\n|\r))[\s\S]+?(?=(?:\r?\n|\r)^```$)/m,
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lookbehind: true
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},
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'code-language': {
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pattern: /^(```).+/,
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lookbehind: true
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},
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'punctuation': /```/
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}
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}
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],
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'title': [
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{
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// title 1
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// =======
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// title 2
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// -------
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pattern: /\S.*(?:\r?\n|\r)(?:==+|--+)/,
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alias: 'important',
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inside: {
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punctuation: /==+$|--+$/
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}
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},
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{
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// # title 1
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// ###### title 6
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pattern: /(^\s*)#+.+/m,
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lookbehind: true,
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alias: 'important',
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inside: {
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punctuation: /^#+|#+$/
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}
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}
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],
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'hr': {
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// ***
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// ---
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// * * *
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// -----------
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pattern: /(^\s*)([*-])(?:[\t ]*\2){2,}(?=\s*$)/m,
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lookbehind: true,
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alias: 'punctuation'
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},
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'list': {
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// * item
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// + item
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// - item
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// 1. item
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pattern: /(^\s*)(?:[*+-]|\d+\.)(?=[\t ].)/m,
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lookbehind: true,
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alias: 'punctuation'
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},
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'url-reference': {
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// [id]: http://example.com "Optional title"
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// [id]: http://example.com 'Optional title'
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// [id]: http://example.com (Optional title)
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// [id]: <http://example.com> "Optional title"
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pattern: /!?\[[^\]]+\]:[\t ]+(?:\S+|<(?:\\.|[^>\\])+>)(?:[\t ]+(?:"(?:\\.|[^"\\])*"|'(?:\\.|[^'\\])*'|\((?:\\.|[^)\\])*\)))?/,
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inside: {
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'variable': {
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pattern: /^(!?\[)[^\]]+/,
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lookbehind: true
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},
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'string': /(?:"(?:\\.|[^"\\])*"|'(?:\\.|[^'\\])*'|\((?:\\.|[^)\\])*\))$/,
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'punctuation': /^[\[\]!:]|[<>]/
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},
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alias: 'url'
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},
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'bold': {
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// **strong**
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// __strong__
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// Allow only one line break
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pattern: /(^|[^\\])(\*\*|__)(?:(?:\r?\n|\r)(?!\r?\n|\r)|.)+?\2/,
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lookbehind: true,
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greedy: true,
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inside: {
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'punctuation': /^\*\*|^__|\*\*$|__$/
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}
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},
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'italic': {
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// *em*
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// _em_
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// Allow only one line break
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pattern: /(^|[^\\])([*_])(?:(?:\r?\n|\r)(?!\r?\n|\r)|.)+?\2/,
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lookbehind: true,
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greedy: true,
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inside: {
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'punctuation': /^[*_]|[*_]$/
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}
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},
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'strike': {
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// ~~strike through~~
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// ~strike~
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// Allow only one line break
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pattern: /(^|[^\\])(~~?)(?:(?:\r?\n|\r)(?!\r?\n|\r)|.)+?\2/,
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lookbehind: true,
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greedy: true,
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inside: {
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'punctuation': /^~~?|~~?$/
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}
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},
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'url': {
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// [example](http://example.com "Optional title")
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// [example] [id]
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pattern: /!?\[[^\]]+\](?:\([^\s)]+(?:[\t ]+"(?:\\.|[^"\\])*")?\)| ?\[[^\]\n]*\])/,
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inside: {
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'variable': {
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pattern: /(!?\[)[^\]]+(?=\]$)/,
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lookbehind: true
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},
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'string': {
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pattern: /"(?:\\.|[^"\\])*"(?=\)$)/
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}
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}
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}
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});
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['bold', 'italic', 'strike'].forEach(function (token) {
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['url', 'bold', 'italic', 'strike'].forEach(function (inside) {
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if (token !== inside) {
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Prism.languages.markdown[token].inside[inside] = Prism.languages.markdown[inside];
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}
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});
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});
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Prism.hooks.add('after-tokenize', function (env) {
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if (env.language !== 'markdown' && env.language !== 'md') {
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return;
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}
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function walkTokens(tokens) {
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if (!tokens || typeof tokens === 'string') {
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return;
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}
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for (var i = 0, l = tokens.length; i < l; i++) {
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var token = tokens[i];
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if (token.type !== 'code') {
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walkTokens(token.content);
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continue;
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}
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var codeLang = token.content[1];
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var codeBlock = token.content[3];
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if (codeLang && codeBlock &&
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codeLang.type === 'code-language' && codeBlock.type === 'code-block' &&
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typeof codeLang.content === 'string') {
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// this might be a language that Prism does not support
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var alias = 'language-' + codeLang.content.trim().split(/\s+/)[0].toLowerCase();
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// add alias
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if (!codeBlock.alias) {
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codeBlock.alias = [alias];
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} else if (typeof codeBlock.alias === 'string') {
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codeBlock.alias = [codeBlock.alias, alias];
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} else {
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codeBlock.alias.push(alias);
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}
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}
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}
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}
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walkTokens(env.tokens);
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});
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Prism.hooks.add('wrap', function (env) {
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if (env.type !== 'code-block') {
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return;
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}
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var codeLang = '';
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for (var i = 0, l = env.classes.length; i < l; i++) {
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var cls = env.classes[i];
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var match = /language-(.+)/.exec(cls);
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if (match) {
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codeLang = match[1];
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break;
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}
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}
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var grammar = Prism.languages[codeLang];
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if (!grammar) {
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return;
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}
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// reverse Prism.util.encode
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var code = env.content.replace(/</g, '<').replace(/&/g, '&');
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env.content = Prism.highlight(code, grammar, codeLang);
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});
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Prism.languages.md = Prism.languages.markdown;
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