test
", "
',
+ 'showdown': 'S'
+ };
+
+ /**
+ * Created by Estevao on 31-05-2015.
+ */
+
+ /**
+ * Showdown Converter class
+ * @class
+ * @param {object} [converterOptions]
+ * @returns {Converter}
+ */
+ showdown.Converter = function (converterOptions) {
+ 'use strict';
+
+ var
+ /**
+ * Options used by this converter
+ * @private
+ * @type {{}}
+ */
+ options = {},
+
+ /**
+ * Language extensions used by this converter
+ * @private
+ * @type {Array}
+ */
+ langExtensions = [],
+
+ /**
+ * Output modifiers extensions used by this converter
+ * @private
+ * @type {Array}
+ */
+ outputModifiers = [],
+
+ /**
+ * Event listeners
+ * @private
+ * @type {{}}
+ */
+ listeners = {},
+
+ /**
+ * The flavor set in this converter
+ */
+ setConvFlavor = setFlavor,
+
+ /**
+ * Metadata of the document
+ * @type {{parsed: {}, raw: string, format: string}}
+ */
+ metadata = {
+ parsed: {},
+ raw: '',
+ format: ''
+ };
+
+ _constructor();
+
+ /**
+ * Converter constructor
+ * @private
+ */
+ function _constructor() {
+ converterOptions = converterOptions || {};
+
+ for (var gOpt in globalOptions) {
+ if (globalOptions.hasOwnProperty(gOpt)) {
+ options[gOpt] = globalOptions[gOpt];
+ }
+ }
+
+ // Merge options
+ if (typeof converterOptions === 'object') {
+ for (var opt in converterOptions) {
+ if (converterOptions.hasOwnProperty(opt)) {
+ options[opt] = converterOptions[opt];
+ }
+ }
+ } else {
+ throw Error('Converter expects the passed parameter to be an object, but ' + typeof converterOptions +
+ ' was passed instead.');
+ }
+
+ if (options.extensions) {
+ showdown.helper.forEach(options.extensions, _parseExtension);
+ }
+ }
+
+ /**
+ * Parse extension
+ * @param {*} ext
+ * @param {string} [name='']
+ * @private
+ */
+ function _parseExtension(ext, name) {
+
+ name = name || null;
+ // If it's a string, the extension was previously loaded
+ if (showdown.helper.isString(ext)) {
+ ext = showdown.helper.stdExtName(ext);
+ name = ext;
+
+ // LEGACY_SUPPORT CODE
+ if (showdown.extensions[ext]) {
+ console.warn('DEPRECATION WARNING: ' + ext + ' is an old extension that uses a deprecated loading method.' +
+ 'Please inform the developer that the extension should be updated!');
+ legacyExtensionLoading(showdown.extensions[ext], ext);
+ return;
+ // END LEGACY SUPPORT CODE
+
+ } else if (!showdown.helper.isUndefined(extensions[ext])) {
+ ext = extensions[ext];
+
+ } else {
+ throw Error('Extension "' + ext + '" could not be loaded. It was either not found or is not a valid extension.');
+ }
+ }
+
+ if (typeof ext === 'function') {
+ ext = ext();
+ }
+
+ if (!showdown.helper.isArray(ext)) {
+ ext = [ext];
+ }
+
+ var validExt = validate(ext, name);
+ if (!validExt.valid) {
+ throw Error(validExt.error);
+ }
+
+ for (var i = 0; i < ext.length; ++i) {
+ switch (ext[i].type) {
+
+ case 'lang':
+ langExtensions.push(ext[i]);
+ break;
+
+ case 'output':
+ outputModifiers.push(ext[i]);
+ break;
+ }
+ if (ext[i].hasOwnProperty('listeners')) {
+ for (var ln in ext[i].listeners) {
+ if (ext[i].listeners.hasOwnProperty(ln)) {
+ listen(ln, ext[i].listeners[ln]);
+ }
+ }
+ }
+ }
+
+ }
+
+ /**
+ * LEGACY_SUPPORT
+ * @param {*} ext
+ * @param {string} name
+ */
+ function legacyExtensionLoading(ext, name) {
+ if (typeof ext === 'function') {
+ ext = ext(new showdown.Converter());
+ }
+ if (!showdown.helper.isArray(ext)) {
+ ext = [ext];
+ }
+ var valid = validate(ext, name);
+
+ if (!valid.valid) {
+ throw Error(valid.error);
+ }
+
+ for (var i = 0; i < ext.length; ++i) {
+ switch (ext[i].type) {
+ case 'lang':
+ langExtensions.push(ext[i]);
+ break;
+ case 'output':
+ outputModifiers.push(ext[i]);
+ break;
+ default:// should never reach here
+ throw Error('Extension loader error: Type unrecognized!!!');
+ }
+ }
+ }
+
+ /**
+ * Listen to an event
+ * @param {string} name
+ * @param {function} callback
+ */
+ function listen(name, callback) {
+ if (!showdown.helper.isString(name)) {
+ throw Error('Invalid argument in converter.listen() method: name must be a string, but ' + typeof name + ' given');
+ }
+
+ if (typeof callback !== 'function') {
+ throw Error('Invalid argument in converter.listen() method: callback must be a function, but ' + typeof callback + ' given');
+ }
+
+ if (!listeners.hasOwnProperty(name)) {
+ listeners[name] = [];
+ }
+ listeners[name].push(callback);
+ }
+
+ function rTrimInputText(text) {
+ var rsp = text.match(/^\s*/)[0].length,
+ rgx = new RegExp('^\\s{0,' + rsp + '}', 'gm');
+ return text.replace(rgx, '');
+ }
+
+ /**
+ * Dispatch an event
+ * @private
+ * @param {string} evtName Event name
+ * @param {string} text Text
+ * @param {{}} options Converter Options
+ * @param {{}} globals
+ * @returns {string}
+ */
+ this._dispatch = function dispatch(evtName, text, options, globals) {
+ if (listeners.hasOwnProperty(evtName)) {
+ for (var ei = 0; ei < listeners[evtName].length; ++ei) {
+ var nText = listeners[evtName][ei](evtName, text, this, options, globals);
+ if (nText && typeof nText !== 'undefined') {
+ text = nText;
+ }
+ }
+ }
+ return text;
+ };
+
+ /**
+ * Listen to an event
+ * @param {string} name
+ * @param {function} callback
+ * @returns {showdown.Converter}
+ */
+ this.listen = function (name, callback) {
+ listen(name, callback);
+ return this;
+ };
+
+ /**
+ * Converts a markdown string into HTML
+ * @param {string} text
+ * @returns {*}
+ */
+ this.makeHtml = function (text) {
+ //check if text is not falsy
+ if (!text) {
+ return text;
+ }
+
+ var globals = {
+ gHtmlBlocks: [],
+ gHtmlMdBlocks: [],
+ gHtmlSpans: [],
+ gUrls: {},
+ gTitles: {},
+ gDimensions: {},
+ gListLevel: 0,
+ hashLinkCounts: {},
+ langExtensions: langExtensions,
+ outputModifiers: outputModifiers,
+ converter: this,
+ ghCodeBlocks: [],
+ metadata: {
+ parsed: {},
+ raw: '',
+ format: ''
+ }
+ };
+
+ // This lets us use ¨ trema as an escape char to avoid md5 hashes
+ // The choice of character is arbitrary; anything that isn't
+ // magic in Markdown will work.
+ text = text.replace(/¨/g, '¨T');
+
+ // Replace $ with ¨D
+ // RegExp interprets $ as a special character
+ // when it's in a replacement string
+ text = text.replace(/\$/g, '¨D');
+
+ // Standardize line endings
+ text = text.replace(/\r\n/g, '\n'); // DOS to Unix
+ text = text.replace(/\r/g, '\n'); // Mac to Unix
+
+ // Stardardize line spaces
+ text = text.replace(/\u00A0/g, ' ');
+
+ if (options.smartIndentationFix) {
+ text = rTrimInputText(text);
+ }
+
+ // Make sure text begins and ends with a couple of newlines:
+ text = '\n\n' + text + '\n\n';
+
+ // detab
+ text = showdown.subParser('detab')(text, options, globals);
+
+ /**
+ * Strip any lines consisting only of spaces and tabs.
+ * This makes subsequent regexs easier to write, because we can
+ * match consecutive blank lines with /\n+/ instead of something
+ * contorted like /[ \t]*\n+/
+ */
+ text = text.replace(/^[ \t]+$/mg, '');
+
+ //run languageExtensions
+ showdown.helper.forEach(langExtensions, function (ext) {
+ text = showdown.subParser('runExtension')(ext, text, options, globals);
+ });
+
+ // run the sub parsers
+ text = showdown.subParser('metadata')(text, options, globals);
+ text = showdown.subParser('hashPreCodeTags')(text, options, globals);
+ text = showdown.subParser('githubCodeBlocks')(text, options, globals);
+ text = showdown.subParser('hashHTMLBlocks')(text, options, globals);
+ text = showdown.subParser('hashCodeTags')(text, options, globals);
+ text = showdown.subParser('stripLinkDefinitions')(text, options, globals);
+ text = showdown.subParser('blockGamut')(text, options, globals);
+ text = showdown.subParser('unhashHTMLSpans')(text, options, globals);
+ text = showdown.subParser('unescapeSpecialChars')(text, options, globals);
+
+ // attacklab: Restore dollar signs
+ text = text.replace(/¨D/g, '$$');
+
+ // attacklab: Restore tremas
+ text = text.replace(/¨T/g, '¨');
+
+ // render a complete html document instead of a partial if the option is enabled
+ text = showdown.subParser('completeHTMLDocument')(text, options, globals);
+
+ // Run output modifiers
+ showdown.helper.forEach(outputModifiers, function (ext) {
+ text = showdown.subParser('runExtension')(ext, text, options, globals);
+ });
+
+ // update metadata
+ metadata = globals.metadata;
+ return text;
+ };
+
+ /**
+ * Converts an HTML string into a markdown string
+ * @param src
+ * @param [HTMLParser] A WHATWG DOM and HTML parser, such as JSDOM. If none is supplied, window.document will be used.
+ * @returns {string}
+ */
+ this.makeMarkdown = this.makeMd = function (src, HTMLParser) {
+
+ // replace \r\n with \n
+ src = src.replace(/\r\n/g, '\n');
+ src = src.replace(/\r/g, '\n'); // old macs
+
+ // due to an edge case, we need to find this: > <
+ // to prevent removing of non silent white spaces
+ // ex: this is sparta
+ src = src.replace(/>[ \t]+¨NBSP;<');
+
+ if (!HTMLParser) {
+ if (window && window.document) {
+ HTMLParser = window.document;
+ } else {
+ throw new Error('HTMLParser is undefined. If in a webworker or nodejs environment, you need to provide a WHATWG DOM and HTML such as JSDOM');
+ }
+ }
+
+ var doc = HTMLParser.createElement('div');
+ doc.innerHTML = src;
+
+ var globals = {
+ preList: substitutePreCodeTags(doc)
+ };
+
+ // remove all newlines and collapse spaces
+ clean(doc);
+
+ // some stuff, like accidental reference links must now be escaped
+ // TODO
+ // doc.innerHTML = doc.innerHTML.replace(/\[[\S\t ]]/);
+
+ var nodes = doc.childNodes,
+ mdDoc = '';
+
+ for (var i = 0; i < nodes.length; i++) {
+ mdDoc += showdown.subParser('makeMarkdown.node')(nodes[i], globals);
+ }
+
+ function clean(node) {
+ for (var n = 0; n < node.childNodes.length; ++n) {
+ var child = node.childNodes[n];
+ if (child.nodeType === 3) {
+ if (!/\S/.test(child.nodeValue)) {
+ node.removeChild(child);
+ --n;
+ } else {
+ child.nodeValue = child.nodeValue.split('\n').join(' ');
+ child.nodeValue = child.nodeValue.replace(/(\s)+/g, '$1');
+ }
+ } else if (child.nodeType === 1) {
+ clean(child);
+ }
+ }
+ }
+
+ // find all pre tags and replace contents with placeholder
+ // we need this so that we can remove all indentation from html
+ // to ease up parsing
+ function substitutePreCodeTags(doc) {
+
+ var pres = doc.querySelectorAll('pre'),
+ presPH = [];
+
+ for (var i = 0; i < pres.length; ++i) {
+
+ if (pres[i].childElementCount === 1 && pres[i].firstChild.tagName.toLowerCase() === 'code') {
+ var content = pres[i].firstChild.innerHTML.trim(),
+ language = pres[i].firstChild.getAttribute('data-language') || '';
+
+ // if data-language attribute is not defined, then we look for class language-*
+ if (language === '') {
+ var classes = pres[i].firstChild.className.split(' ');
+ for (var c = 0; c < classes.length; ++c) {
+ var matches = classes[c].match(/^language-(.+)$/);
+ if (matches !== null) {
+ language = matches[1];
+ break;
+ }
+ }
+ }
+
+ // unescape html entities in content
+ content = showdown.helper.unescapeHTMLEntities(content);
+
+ presPH.push(content);
+ pres[i].outerHTML = 'tags around block-level tags. + text = showdown.subParser('hashHTMLBlocks')(text, options, globals); + text = showdown.subParser('paragraphs')(text, options, globals); + + text = globals.converter._dispatch('blockGamut.after', text, options, globals); + + return text; + }); + + showdown.subParser('blockQuotes', function (text, options, globals) { + 'use strict'; + + text = globals.converter._dispatch('blockQuotes.before', text, options, globals); + + // add a couple extra lines after the text and endtext mark + text = text + '\n\n'; + + var rgx = /(^ {0,3}>[ \t]?.+\n(.+\n)*\n*)+/gm; + + if (options.splitAdjacentBlockquotes) { + rgx = /^ {0,3}>[\s\S]*?(?:\n\n)/gm; + } + + text = text.replace(rgx, function (bq) { + // attacklab: hack around Konqueror 3.5.4 bug: + // "----------bug".replace(/^-/g,"") == "bug" + bq = bq.replace(/^[ \t]*>[ \t]?/gm, ''); // trim one level of quoting + + // attacklab: clean up hack + bq = bq.replace(/¨0/g, ''); + + bq = bq.replace(/^[ \t]+$/gm, ''); // trim whitespace-only lines + bq = showdown.subParser('githubCodeBlocks')(bq, options, globals); + bq = showdown.subParser('blockGamut')(bq, options, globals); // recurse + + bq = bq.replace(/(^|\n)/g, '$1 '); + // These leading spaces screw with
content, so we need to fix that:
+ bq = bq.replace(/(\s*[^\r]+?<\/pre>)/gm, function (wholeMatch, m1) {
+ var pre = m1;
+ // attacklab: hack around Konqueror 3.5.4 bug:
+ pre = pre.replace(/^ /mg, '¨0');
+ pre = pre.replace(/¨0/g, '');
+ return pre;
+ });
+
+ return showdown.subParser('hashBlock')('\n' + bq + '\n
', options, globals);
+ });
+
+ text = globals.converter._dispatch('blockQuotes.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Process Markdown `` blocks.
+ */
+ showdown.subParser('codeBlocks', function (text, options, globals) {
+ 'use strict';
+
+ text = globals.converter._dispatch('codeBlocks.before', text, options, globals);
+
+ // sentinel workarounds for lack of \A and \Z, safari\khtml bug
+ text += '¨0';
+
+ var pattern = /(?:\n\n|^)((?:(?:[ ]{4}|\t).*\n+)+)(\n*[ ]{0,3}[^ \t\n]|(?=¨0))/g;
+ text = text.replace(pattern, function (wholeMatch, m1, m2) {
+ var codeblock = m1,
+ nextChar = m2,
+ end = '\n';
+
+ codeblock = showdown.subParser('outdent')(codeblock, options, globals);
+ codeblock = showdown.subParser('encodeCode')(codeblock, options, globals);
+ codeblock = showdown.subParser('detab')(codeblock, options, globals);
+ codeblock = codeblock.replace(/^\n+/g, ''); // trim leading newlines
+ codeblock = codeblock.replace(/\n+$/g, ''); // trim trailing newlines
+
+ if (options.omitExtraWLInCodeBlocks) {
+ end = '';
+ }
+
+ codeblock = '' + codeblock + end + '
';
+
+ return showdown.subParser('hashBlock')(codeblock, options, globals) + nextChar;
+ });
+
+ // strip sentinel
+ text = text.replace(/¨0/, '');
+
+ text = globals.converter._dispatch('codeBlocks.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ *
+ * * Backtick quotes are used for Just type foo `bar` baz at the prompt.
+ *
+ * There's no arbitrary limit to the number of backticks you
+ * can use as delimters. If you need three consecutive backticks
+ * in your code, use four for delimiters, etc.
+ *
+ * * You can use spaces to get literal backticks at the edges:
+ *
+ * ... type `` `bar` `` ...
+ *
+ * Turns to:
+ *
+ * ... type `bar` ...
+ */
+ showdown.subParser('codeSpans', function (text, options, globals) {
+ 'use strict';
+
+ text = globals.converter._dispatch('codeSpans.before', text, options, globals);
+
+ if (typeof (text) === 'undefined') {
+ text = '';
+ }
+ text = text.replace(/(^|[^\\])(`+)([^\r]*?[^`])\2(?!`)/gm,
+ function (wholeMatch, m1, m2, m3) {
+ var c = m3;
+ c = c.replace(/^([ \t]*)/g, ''); // leading whitespace
+ c = c.replace(/[ \t]*$/g, ''); // trailing whitespace
+ c = showdown.subParser('encodeCode')(c, options, globals);
+ c = m1 + '' + c + '';
+ c = showdown.subParser('hashHTMLSpans')(c, options, globals);
+ return c;
+ }
+ );
+
+ text = globals.converter._dispatch('codeSpans.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Create a full HTML document from the processed markdown
+ */
+ showdown.subParser('completeHTMLDocument', function (text, options, globals) {
+ 'use strict';
+
+ if (!options.completeHTMLDocument) {
+ return text;
+ }
+
+ text = globals.converter._dispatch('completeHTMLDocument.before', text, options, globals);
+
+ var doctype = 'html',
+ doctypeParsed = '\n',
+ title = '',
+ charset = '\n',
+ lang = '',
+ metadata = '';
+
+ if (typeof globals.metadata.parsed.doctype !== 'undefined') {
+ doctypeParsed = '\n';
+ doctype = globals.metadata.parsed.doctype.toString().toLowerCase();
+ if (doctype === 'html' || doctype === 'html5') {
+ charset = '';
+ }
+ }
+
+ for (var meta in globals.metadata.parsed) {
+ if (globals.metadata.parsed.hasOwnProperty(meta)) {
+ switch (meta.toLowerCase()) {
+ case 'doctype':
+ break;
+
+ case 'title':
+ title = '' + globals.metadata.parsed.title + ' \n';
+ break;
+
+ case 'charset':
+ if (doctype === 'html' || doctype === 'html5') {
+ charset = '\n';
+ } else {
+ charset = '\n';
+ }
+ break;
+
+ case 'language':
+ case 'lang':
+ lang = ' lang="' + globals.metadata.parsed[meta] + '"';
+ metadata += '\n';
+ break;
+
+ default:
+ metadata += '\n';
+ }
+ }
+ }
+
+ text = doctypeParsed + '\n\n' + title + charset + metadata + '\n\n' + text.trim() + '\n\n';
+
+ text = globals.converter._dispatch('completeHTMLDocument.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Convert all tabs to spaces
+ */
+ showdown.subParser('detab', function (text, options, globals) {
+ 'use strict';
+ text = globals.converter._dispatch('detab.before', text, options, globals);
+
+ // expand first n-1 tabs
+ text = text.replace(/\t(?=\t)/g, ' '); // g_tab_width
+
+ // replace the nth with two sentinels
+ text = text.replace(/\t/g, '¨A¨B');
+
+ // use the sentinel to anchor our regex so it doesn't explode
+ text = text.replace(/¨B(.+?)¨A/g, function (wholeMatch, m1) {
+ var leadingText = m1,
+ numSpaces = 4 - leadingText.length % 4; // g_tab_width
+
+ // there *must* be a better way to do this:
+ for (var i = 0; i < numSpaces; i++) {
+ leadingText += ' ';
+ }
+
+ return leadingText;
+ });
+
+ // clean up sentinels
+ text = text.replace(/¨A/g, ' '); // g_tab_width
+ text = text.replace(/¨B/g, '');
+
+ text = globals.converter._dispatch('detab.after', text, options, globals);
+ return text;
+ });
+
+ showdown.subParser('ellipsis', function (text, options, globals) {
+ 'use strict';
+
+ text = globals.converter._dispatch('ellipsis.before', text, options, globals);
+
+ text = text.replace(/\.\.\./g, '…');
+
+ text = globals.converter._dispatch('ellipsis.after', text, options, globals);
+
+ return text;
+ });
+
+ /**
+ * Turn emoji codes into emojis
+ *
+ * List of supported emojis: https://github.com/showdownjs/showdown/wiki/Emojis
+ */
+ showdown.subParser('emoji', function (text, options, globals) {
+ 'use strict';
+
+ if (!options.emoji) {
+ return text;
+ }
+
+ text = globals.converter._dispatch('emoji.before', text, options, globals);
+
+ var emojiRgx = /:([\S]+?):/g;
+
+ text = text.replace(emojiRgx, function (wm, emojiCode) {
+ if (showdown.helper.emojis.hasOwnProperty(emojiCode)) {
+ return showdown.helper.emojis[emojiCode];
+ }
+ return wm;
+ });
+
+ text = globals.converter._dispatch('emoji.after', text, options, globals);
+
+ return text;
+ });
+
+ /**
+ * Smart processing for ampersands and angle brackets that need to be encoded.
+ */
+ showdown.subParser('encodeAmpsAndAngles', function (text, options, globals) {
+ 'use strict';
+ text = globals.converter._dispatch('encodeAmpsAndAngles.before', text, options, globals);
+
+ // Ampersand-encoding based entirely on Nat Irons's Amputator MT plugin:
+ // http://bumppo.net/projects/amputator/
+ text = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g, '&');
+
+ // Encode naked <'s
+ text = text.replace(/<(?![a-z\/?$!])/gi, '<');
+
+ // Encode <
+ text = text.replace(/
+ text = text.replace(/>/g, '>');
+
+ text = globals.converter._dispatch('encodeAmpsAndAngles.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Returns the string, with after processing the following backslash escape sequences.
+ *
+ * attacklab: The polite way to do this is with the new escapeCharacters() function:
+ *
+ * text = escapeCharacters(text,"\\",true);
+ * text = escapeCharacters(text,"`*_{}[]()>#+-.!",true);
+ *
+ * ...but we're sidestepping its use of the (slow) RegExp constructor
+ * as an optimization for Firefox. This function gets called a LOT.
+ */
+ showdown.subParser('encodeBackslashEscapes', function (text, options, globals) {
+ 'use strict';
+ text = globals.converter._dispatch('encodeBackslashEscapes.before', text, options, globals);
+
+ text = text.replace(/\\(\\)/g, showdown.helper.escapeCharactersCallback);
+ text = text.replace(/\\([`*_{}\[\]()>#+.!~=|-])/g, showdown.helper.escapeCharactersCallback);
+
+ text = globals.converter._dispatch('encodeBackslashEscapes.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Encode/escape certain characters inside Markdown code runs.
+ * The point is that in code, these characters are literals,
+ * and lose their special Markdown meanings.
+ */
+ showdown.subParser('encodeCode', function (text, options, globals) {
+ 'use strict';
+
+ text = globals.converter._dispatch('encodeCode.before', text, options, globals);
+
+ // Encode all ampersands; HTML entities are not
+ // entities within a Markdown code span.
+ text = text
+ .replace(/&/g, '&')
+ // Do the angle bracket song and dance:
+ .replace(//g, '>')
+ // Now, escape characters that are magic in Markdown:
+ .replace(/([*_{}\[\]\\=~-])/g, showdown.helper.escapeCharactersCallback);
+
+ text = globals.converter._dispatch('encodeCode.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Within tags -- meaning between < and > -- encode [\ ` * _ ~ =] so they
+ * don't conflict with their use in Markdown for code, italics and strong.
+ */
+ showdown.subParser('escapeSpecialCharsWithinTagAttributes', function (text, options, globals) {
+ 'use strict';
+ text = globals.converter._dispatch('escapeSpecialCharsWithinTagAttributes.before', text, options, globals);
+
+ // Build a regex to find HTML tags.
+ var tags = /<\/?[a-z\d_:-]+(?:[\s]+[\s\S]+?)?>/gi,
+ comments = /-]|-[^>])(?:[^-]|-[^-])*)--)>/gi;
+
+ text = text.replace(tags, function (wholeMatch) {
+ return wholeMatch
+ .replace(/(.)<\/?code>(?=.)/g, '$1`')
+ .replace(/([\\`*_~=|])/g, showdown.helper.escapeCharactersCallback);
+ });
+
+ text = text.replace(comments, function (wholeMatch) {
+ return wholeMatch
+ .replace(/([\\`*_~=|])/g, showdown.helper.escapeCharactersCallback);
+ });
+
+ text = globals.converter._dispatch('escapeSpecialCharsWithinTagAttributes.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Handle github codeblocks prior to running HashHTML so that
+ * HTML contained within the codeblock gets escaped properly
+ * Example:
+ * ```ruby
+ * def hello_world(x)
+ * puts "Hello, #{x}"
+ * end
+ * ```
+ */
+ showdown.subParser('githubCodeBlocks', function (text, options, globals) {
+ 'use strict';
+
+ // early exit if option is not enabled
+ if (!options.ghCodeBlocks) {
+ return text;
+ }
+
+ text = globals.converter._dispatch('githubCodeBlocks.before', text, options, globals);
+
+ text += '¨0';
+
+ text = text.replace(/(?:^|\n)(?: {0,3})(```+|~~~+)(?: *)([^\s`~]*)\n([\s\S]*?)\n(?: {0,3})\1/g, function (wholeMatch, delim, language, codeblock) {
+ var end = (options.omitExtraWLInCodeBlocks) ? '' : '\n';
+
+ // First parse the github code block
+ codeblock = showdown.subParser('encodeCode')(codeblock, options, globals);
+ codeblock = showdown.subParser('detab')(codeblock, options, globals);
+ codeblock = codeblock.replace(/^\n+/g, ''); // trim leading newlines
+ codeblock = codeblock.replace(/\n+$/g, ''); // trim trailing whitespace
+
+ codeblock = '' + codeblock + end + '
';
+
+ codeblock = showdown.subParser('hashBlock')(codeblock, options, globals);
+
+ // Since GHCodeblocks can be false positives, we need to
+ // store the primitive text and the parsed text in a global var,
+ // and then return a token
+ return '\n\n¨G' + (globals.ghCodeBlocks.push({ text: wholeMatch, codeblock: codeblock }) - 1) + 'G\n\n';
+ });
+
+ // attacklab: strip sentinel
+ text = text.replace(/¨0/, '');
+
+ return globals.converter._dispatch('githubCodeBlocks.after', text, options, globals);
+ });
+
+ showdown.subParser('hashBlock', function (text, options, globals) {
+ 'use strict';
+ text = globals.converter._dispatch('hashBlock.before', text, options, globals);
+ text = text.replace(/(^\n+|\n+$)/g, '');
+ text = '\n\n¨K' + (globals.gHtmlBlocks.push(text) - 1) + 'K\n\n';
+ text = globals.converter._dispatch('hashBlock.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Hash and escape elements that should not be parsed as markdown
+ */
+ showdown.subParser('hashCodeTags', function (text, options, globals) {
+ 'use strict';
+ text = globals.converter._dispatch('hashCodeTags.before', text, options, globals);
+
+ var repFunc = function (wholeMatch, match, left, right) {
+ var codeblock = left + showdown.subParser('encodeCode')(match, options, globals) + right;
+ return '¨C' + (globals.gHtmlSpans.push(codeblock) - 1) + 'C';
+ };
+
+ // Hash naked
+ text = showdown.helper.replaceRecursiveRegExp(text, repFunc, ']*>', ' ', 'gim');
+
+ text = globals.converter._dispatch('hashCodeTags.after', text, options, globals);
+ return text;
+ });
+
+ showdown.subParser('hashElement', function (text, options, globals) {
+ 'use strict';
+
+ return function (wholeMatch, m1) {
+ var blockText = m1;
+
+ // Undo double lines
+ blockText = blockText.replace(/\n\n/g, '\n');
+ blockText = blockText.replace(/^\n/, '');
+
+ // strip trailing blank lines
+ blockText = blockText.replace(/\n+$/g, '');
+
+ // Replace the element text with a marker ("¨KxK" where x is its key)
+ blockText = '\n\n¨K' + (globals.gHtmlBlocks.push(blockText) - 1) + 'K\n\n';
+
+ return blockText;
+ };
+ });
+
+ showdown.subParser('hashHTMLBlocks', function (text, options, globals) {
+ 'use strict';
+ text = globals.converter._dispatch('hashHTMLBlocks.before', text, options, globals);
+
+ var blockTags = [
+ 'pre',
+ 'div',
+ 'h1',
+ 'h2',
+ 'h3',
+ 'h4',
+ 'h5',
+ 'h6',
+ 'blockquote',
+ 'table',
+ 'dl',
+ 'ol',
+ 'ul',
+ 'script',
+ 'noscript',
+ 'form',
+ 'fieldset',
+ 'iframe',
+ 'math',
+ 'style',
+ 'section',
+ 'header',
+ 'footer',
+ 'nav',
+ 'article',
+ 'aside',
+ 'address',
+ 'audio',
+ 'canvas',
+ 'figure',
+ 'hgroup',
+ 'output',
+ 'video',
+ 'p'
+ ],
+ repFunc = function (wholeMatch, match, left, right) {
+ var txt = wholeMatch;
+ // check if this html element is marked as markdown
+ // if so, it's contents should be parsed as markdown
+ if (left.search(/\bmarkdown\b/) !== -1) {
+ txt = left + globals.converter.makeHtml(match) + right;
+ }
+ return '\n\n¨K' + (globals.gHtmlBlocks.push(txt) - 1) + 'K\n\n';
+ };
+
+ if (options.backslashEscapesHTMLTags) {
+ // encode backslash escaped HTML tags
+ text = text.replace(/\\<(\/?[^>]+?)>/g, function (wm, inside) {
+ return '<' + inside + '>';
+ });
+ }
+
+ // hash HTML Blocks
+ for (var i = 0; i < blockTags.length; ++i) {
+
+ var opTagPos,
+ rgx1 = new RegExp('^ {0,3}(<' + blockTags[i] + '\\b[^>]*>)', 'im'),
+ patLeft = '<' + blockTags[i] + '\\b[^>]*>',
+ patRight = '';
+ // 1. Look for the first position of the first opening HTML tag in the text
+ while ((opTagPos = showdown.helper.regexIndexOf(text, rgx1)) !== -1) {
+
+ // if the HTML tag is \ escaped, we need to escape it and break
+
+
+ //2. Split the text in that position
+ var subTexts = showdown.helper.splitAtIndex(text, opTagPos),
+ //3. Match recursively
+ newSubText1 = showdown.helper.replaceRecursiveRegExp(subTexts[1], repFunc, patLeft, patRight, 'im');
+
+ // prevent an infinite loop
+ if (newSubText1 === subTexts[1]) {
+ break;
+ }
+ text = subTexts[0].concat(newSubText1);
+ }
+ }
+ // HR SPECIAL CASE
+ text = text.replace(/(\n {0,3}(<(hr)\b([^<>])*?\/?>)[ \t]*(?=\n{2,}))/g,
+ showdown.subParser('hashElement')(text, options, globals));
+
+ // Special case for standalone HTML comments
+ text = showdown.helper.replaceRecursiveRegExp(text, function (txt) {
+ return '\n\n¨K' + (globals.gHtmlBlocks.push(txt) - 1) + 'K\n\n';
+ }, '^ {0,3}', 'gm');
+
+ // PHP and ASP-style processor instructions ( and <%...%>)
+ text = text.replace(/(?:\n\n)( {0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g,
+ showdown.subParser('hashElement')(text, options, globals));
+
+ text = globals.converter._dispatch('hashHTMLBlocks.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Hash span elements that should not be parsed as markdown
+ */
+ showdown.subParser('hashHTMLSpans', function (text, options, globals) {
+ 'use strict';
+ text = globals.converter._dispatch('hashHTMLSpans.before', text, options, globals);
+
+ function hashHTMLSpan(html) {
+ return '¨C' + (globals.gHtmlSpans.push(html) - 1) + 'C';
+ }
+
+ // Hash Self Closing tags
+ text = text.replace(/<[^>]+?\/>/gi, function (wm) {
+ return hashHTMLSpan(wm);
+ });
+
+ // Hash tags without properties
+ text = text.replace(/<([^>]+?)>[\s\S]*?<\/\1>/g, function (wm) {
+ return hashHTMLSpan(wm);
+ });
+
+ // Hash tags with properties
+ text = text.replace(/<([^>]+?)\s[^>]+?>[\s\S]*?<\/\1>/g, function (wm) {
+ return hashHTMLSpan(wm);
+ });
+
+ // Hash self closing tags without />
+ text = text.replace(/<[^>]+?>/gi, function (wm) {
+ return hashHTMLSpan(wm);
+ });
+
+ /*showdown.helper.matchRecursiveRegExp(text, ']*>', ' ', 'gi');*/
+
+ text = globals.converter._dispatch('hashHTMLSpans.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Unhash HTML spans
+ */
+ showdown.subParser('unhashHTMLSpans', function (text, options, globals) {
+ 'use strict';
+ text = globals.converter._dispatch('unhashHTMLSpans.before', text, options, globals);
+
+ for (var i = 0; i < globals.gHtmlSpans.length; ++i) {
+ var repText = globals.gHtmlSpans[i],
+ // limiter to prevent infinite loop (assume 10 as limit for recurse)
+ limit = 0;
+
+ while (/¨C(\d+)C/.test(repText)) {
+ var num = RegExp.$1;
+ repText = repText.replace('¨C' + num + 'C', globals.gHtmlSpans[num]);
+ if (limit === 10) {
+ console.error('maximum nesting of 10 spans reached!!!');
+ break;
+ }
+ ++limit;
+ }
+ text = text.replace('¨C' + i + 'C', repText);
+ }
+
+ text = globals.converter._dispatch('unhashHTMLSpans.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Hash and escape elements that should not be parsed as markdown
+ */
+ showdown.subParser('hashPreCodeTags', function (text, options, globals) {
+ 'use strict';
+ text = globals.converter._dispatch('hashPreCodeTags.before', text, options, globals);
+
+ var repFunc = function (wholeMatch, match, left, right) {
+ // encode html entities
+ var codeblock = left + showdown.subParser('encodeCode')(match, options, globals) + right;
+ return '\n\n¨G' + (globals.ghCodeBlocks.push({ text: wholeMatch, codeblock: codeblock }) - 1) + 'G\n\n';
+ };
+
+ // Hash
+ text = showdown.helper.replaceRecursiveRegExp(text, repFunc, '^ {0,3}]*>\\s*]*>', '^ {0,3} \\s*
', 'gim');
+
+ text = globals.converter._dispatch('hashPreCodeTags.after', text, options, globals);
+ return text;
+ });
+
+ showdown.subParser('headers', function (text, options, globals) {
+ 'use strict';
+
+ text = globals.converter._dispatch('headers.before', text, options, globals);
+
+ var headerLevelStart = (isNaN(parseInt(options.headerLevelStart))) ? 1 : parseInt(options.headerLevelStart),
+
+ // Set text-style headers:
+ // Header 1
+ // ========
+ //
+ // Header 2
+ // --------
+ //
+ setextRegexH1 = (options.smoothLivePreview) ? /^(.+)[ \t]*\n={2,}[ \t]*\n+/gm : /^(.+)[ \t]*\n=+[ \t]*\n+/gm,
+ setextRegexH2 = (options.smoothLivePreview) ? /^(.+)[ \t]*\n-{2,}[ \t]*\n+/gm : /^(.+)[ \t]*\n-+[ \t]*\n+/gm;
+
+ text = text.replace(setextRegexH1, function (wholeMatch, m1) {
+
+ var spanGamut = showdown.subParser('spanGamut')(m1, options, globals),
+ hID = (options.noHeaderId) ? '' : ' id="' + headerId(m1) + '"',
+ hLevel = headerLevelStart,
+ hashBlock = '' + spanGamut + ' ';
+ return showdown.subParser('hashBlock')(hashBlock, options, globals);
+ });
+
+ text = text.replace(setextRegexH2, function (matchFound, m1) {
+ var spanGamut = showdown.subParser('spanGamut')(m1, options, globals),
+ hID = (options.noHeaderId) ? '' : ' id="' + headerId(m1) + '"',
+ hLevel = headerLevelStart + 1,
+ hashBlock = '' + spanGamut + ' ';
+ return showdown.subParser('hashBlock')(hashBlock, options, globals);
+ });
+
+ // atx-style headers:
+ // # Header 1
+ // ## Header 2
+ // ## Header 2 with closing hashes ##
+ // ...
+ // ###### Header 6
+ //
+ var atxStyle = (options.requireSpaceBeforeHeadingText) ? /^(#{1,6})[ \t]+(.+?)[ \t]*#*\n+/gm : /^(#{1,6})[ \t]*(.+?)[ \t]*#*\n+/gm;
+
+ text = text.replace(atxStyle, function (wholeMatch, m1, m2) {
+ var hText = m2;
+ if (options.customizedHeaderId) {
+ hText = m2.replace(/\s?\{([^{]+?)}\s*$/, '');
+ }
+
+ var span = showdown.subParser('spanGamut')(hText, options, globals),
+ hID = (options.noHeaderId) ? '' : ' id="' + headerId(m2) + '"',
+ hLevel = headerLevelStart - 1 + m1.length,
+ header = '' + span + ' ';
+
+ return showdown.subParser('hashBlock')(header, options, globals);
+ });
+
+ function headerId(m) {
+ var title,
+ prefix;
+
+ // It is separate from other options to allow combining prefix and customized
+ if (options.customizedHeaderId) {
+ var match = m.match(/\{([^{]+?)}\s*$/);
+ if (match && match[1]) {
+ m = match[1];
+ }
+ }
+
+ title = m;
+
+ // Prefix id to prevent causing inadvertent pre-existing style matches.
+ if (showdown.helper.isString(options.prefixHeaderId)) {
+ prefix = options.prefixHeaderId;
+ } else if (options.prefixHeaderId === true) {
+ prefix = 'section-';
+ } else {
+ prefix = '';
+ }
+
+ if (!options.rawPrefixHeaderId) {
+ title = prefix + title;
+ }
+
+ if (options.ghCompatibleHeaderId) {
+ title = title
+ .replace(/ /g, '-')
+ // replace previously escaped chars (&, ¨ and $)
+ .replace(/&/g, '')
+ .replace(/¨T/g, '')
+ .replace(/¨D/g, '')
+ // replace rest of the chars (&~$ are repeated as they might have been escaped)
+ // borrowed from github's redcarpet (some they should produce similar results)
+ .replace(/[&+$,\/:;=?@"#{}|^¨~\[\]`\\*)(%.!'<>]/g, '')
+ .toLowerCase();
+ } else if (options.rawHeaderId) {
+ title = title
+ .replace(/ /g, '-')
+ // replace previously escaped chars (&, ¨ and $)
+ .replace(/&/g, '&')
+ .replace(/¨T/g, '¨')
+ .replace(/¨D/g, '$')
+ // replace " and '
+ .replace(/["']/g, '-')
+ .toLowerCase();
+ } else {
+ title = title
+ .replace(/[^\w]/g, '')
+ .toLowerCase();
+ }
+
+ if (options.rawPrefixHeaderId) {
+ title = prefix + title;
+ }
+
+ if (globals.hashLinkCounts[title]) {
+ title = title + '-' + (globals.hashLinkCounts[title]++);
+ } else {
+ globals.hashLinkCounts[title] = 1;
+ }
+ return title;
+ }
+
+ text = globals.converter._dispatch('headers.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Turn Markdown link shortcuts into XHTML tags.
+ */
+ showdown.subParser('horizontalRule', function (text, options, globals) {
+ 'use strict';
+ text = globals.converter._dispatch('horizontalRule.before', text, options, globals);
+
+ var key = showdown.subParser('hashBlock')('
', options, globals);
+ text = text.replace(/^ {0,2}( ?-){3,}[ \t]*$/gm, key);
+ text = text.replace(/^ {0,2}( ?\*){3,}[ \t]*$/gm, key);
+ text = text.replace(/^ {0,2}( ?_){3,}[ \t]*$/gm, key);
+
+ text = globals.converter._dispatch('horizontalRule.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Turn Markdown image shortcuts into ![]()
tags.
+ */
+ showdown.subParser('images', function (text, options, globals) {
+ 'use strict';
+
+ text = globals.converter._dispatch('images.before', text, options, globals);
+
+ var inlineRegExp = /!\[([^\]]*?)][ \t]*()\([ \t]??(?: =([*\d]+[A-Za-z%]{0,4})x([*\d]+[A-Za-z%]{0,4}))?[ \t]*(?:(["'])([^"]*?)\6)?[ \t]?\)/g,
+ crazyRegExp = /!\[([^\]]*?)][ \t]*()\([ \t]?<([^>]*)>(?: =([*\d]+[A-Za-z%]{0,4})x([*\d]+[A-Za-z%]{0,4}))?[ \t]*(?:(?:(["'])([^"]*?)\6))?[ \t]?\)/g,
+ base64RegExp = /!\[([^\]]*?)][ \t]*()\([ \t]??(?: =([*\d]+[A-Za-z%]{0,4})x([*\d]+[A-Za-z%]{0,4}))?[ \t]*(?:(["'])([^"]*?)\6)?[ \t]?\)/g,
+ referenceRegExp = /!\[([^\]]*?)] ?(?:\n *)?\[([\s\S]*?)]()()()()()/g,
+ refShortcutRegExp = /!\[([^\[\]]+)]()()()()()/g;
+
+ function writeImageTagBase64(wholeMatch, altText, linkId, url, width, height, m5, title) {
+ url = url.replace(/\s/g, '');
+ return writeImageTag(wholeMatch, altText, linkId, url, width, height, m5, title);
+ }
+
+ function writeImageTag(wholeMatch, altText, linkId, url, width, height, m5, title) {
+
+ var gUrls = globals.gUrls,
+ gTitles = globals.gTitles,
+ gDims = globals.gDimensions;
+
+ linkId = linkId.toLowerCase();
+
+ if (!title) {
+ title = '';
+ }
+ // Special case for explicit empty url
+ if (wholeMatch.search(/\(? ?(['"].*['"])?\)$/m) > -1) {
+ url = '';
+
+ } else if (url === '' || url === null) {
+ if (linkId === '' || linkId === null) {
+ // lower-case and turn embedded newlines into spaces
+ linkId = altText.toLowerCase().replace(/ ?\n/g, ' ');
+ }
+ url = '#' + linkId;
+
+ if (!showdown.helper.isUndefined(gUrls[linkId])) {
+ url = gUrls[linkId];
+ if (!showdown.helper.isUndefined(gTitles[linkId])) {
+ title = gTitles[linkId];
+ }
+ if (!showdown.helper.isUndefined(gDims[linkId])) {
+ width = gDims[linkId].width;
+ height = gDims[linkId].height;
+ }
+ } else {
+ return wholeMatch;
+ }
+ }
+
+ altText = altText
+ .replace(/"/g, '"')
+ //altText = showdown.helper.escapeCharacters(altText, '*_', false);
+ .replace(showdown.helper.regexes.asteriskDashAndColon, showdown.helper.escapeCharactersCallback);
+ //url = showdown.helper.escapeCharacters(url, '*_', false);
+ url = url.replace(showdown.helper.regexes.asteriskDashAndColon, showdown.helper.escapeCharactersCallback);
+ var result = '
x "optional title")
+
+ // base64 encoded images
+ text = text.replace(base64RegExp, writeImageTagBase64);
+
+ // cases with crazy urls like ./image/cat1).png
+ text = text.replace(crazyRegExp, writeImageTag);
+
+ // normal cases
+ text = text.replace(inlineRegExp, writeImageTag);
+
+ // handle reference-style shortcuts: ![img text]
+ text = text.replace(refShortcutRegExp, writeImageTag);
+
+ text = globals.converter._dispatch('images.after', text, options, globals);
+ return text;
+ });
+
+ showdown.subParser('italicsAndBold', function (text, options, globals) {
+ 'use strict';
+
+ text = globals.converter._dispatch('italicsAndBold.before', text, options, globals);
+
+ // it's faster to have 3 separate regexes for each case than have just one
+ // because of backtracing, in some cases, it could lead to an exponential effect
+ // called "catastrophic backtrace". Ominous!
+
+ function parseInside(txt, left, right) {
+ /*
+ if (options.simplifiedAutoLink) {
+ txt = showdown.subParser('simplifiedAutoLinks')(txt, options, globals);
+ }
+ */
+ return left + txt + right;
+ }
+
+ // Parse underscores
+ if (options.literalMidWordUnderscores) {
+ text = text.replace(/\b___(\S[\s\S]*?)___\b/g, function (wm, txt) {
+ return parseInside(txt, '', '');
+ });
+ text = text.replace(/\b__(\S[\s\S]*?)__\b/g, function (wm, txt) {
+ return parseInside(txt, '', '');
+ });
+ text = text.replace(/\b_(\S[\s\S]*?)_\b/g, function (wm, txt) {
+ return parseInside(txt, '', '');
+ });
+ } else {
+ text = text.replace(/___(\S[\s\S]*?)___/g, function (wm, m) {
+ return (/\S$/.test(m)) ? parseInside(m, '', '') : wm;
+ });
+ text = text.replace(/__(\S[\s\S]*?)__/g, function (wm, m) {
+ return (/\S$/.test(m)) ? parseInside(m, '', '') : wm;
+ });
+ text = text.replace(/_([^\s_][\s\S]*?)_/g, function (wm, m) {
+ // !/^_[^_]/.test(m) - test if it doesn't start with __ (since it seems redundant, we removed it)
+ return (/\S$/.test(m)) ? parseInside(m, '', '') : wm;
+ });
+ }
+
+ // Now parse asterisks
+ if (options.literalMidWordAsterisks) {
+ text = text.replace(/([^*]|^)\B\*\*\*(\S[\s\S]*?)\*\*\*\B(?!\*)/g, function (wm, lead, txt) {
+ return parseInside(txt, lead + '', '');
+ });
+ text = text.replace(/([^*]|^)\B\*\*(\S[\s\S]*?)\*\*\B(?!\*)/g, function (wm, lead, txt) {
+ return parseInside(txt, lead + '', '');
+ });
+ text = text.replace(/([^*]|^)\B\*(\S[\s\S]*?)\*\B(?!\*)/g, function (wm, lead, txt) {
+ return parseInside(txt, lead + '', '');
+ });
+ } else {
+ text = text.replace(/\*\*\*(\S[\s\S]*?)\*\*\*/g, function (wm, m) {
+ return (/\S$/.test(m)) ? parseInside(m, '', '') : wm;
+ });
+ text = text.replace(/\*\*(\S[\s\S]*?)\*\*/g, function (wm, m) {
+ return (/\S$/.test(m)) ? parseInside(m, '', '') : wm;
+ });
+ text = text.replace(/\*([^\s*][\s\S]*?)\*/g, function (wm, m) {
+ // !/^\*[^*]/.test(m) - test if it doesn't start with ** (since it seems redundant, we removed it)
+ return (/\S$/.test(m)) ? parseInside(m, '', '') : wm;
+ });
+ }
+
+
+ text = globals.converter._dispatch('italicsAndBold.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Form HTML ordered (numbered) and unordered (bulleted) lists.
+ */
+ showdown.subParser('lists', function (text, options, globals) {
+ 'use strict';
+
+ /**
+ * Process the contents of a single ordered or unordered list, splitting it
+ * into individual list items.
+ * @param {string} listStr
+ * @param {boolean} trimTrailing
+ * @returns {string}
+ */
+ function processListItems(listStr, trimTrailing) {
+ // The $g_list_level global keeps track of when we're inside a list.
+ // Each time we enter a list, we increment it; when we leave a list,
+ // we decrement. If it's zero, we're not in a list anymore.
+ //
+ // We do this because when we're not inside a list, we want to treat
+ // something like this:
+ //
+ // I recommend upgrading to version
+ // 8. Oops, now this line is treated
+ // as a sub-list.
+ //
+ // As a single paragraph, despite the fact that the second line starts
+ // with a digit-period-space sequence.
+ //
+ // Whereas when we're inside a list (or sub-list), that line will be
+ // treated as the start of a sub-list. What a kludge, huh? This is
+ // an aspect of Markdown's syntax that's hard to parse perfectly
+ // without resorting to mind-reading. Perhaps the solution is to
+ // change the syntax rules such that sub-lists must start with a
+ // starting cardinal number; e.g. "1." or "a.".
+ globals.gListLevel++;
+
+ // trim trailing blank lines:
+ listStr = listStr.replace(/\n{2,}$/, '\n');
+
+ // attacklab: add sentinel to emulate \z
+ listStr += '¨0';
+
+ var rgx = /(\n)?(^ {0,3})([*+-]|\d+[.])[ \t]+((\[(x|X| )?])?[ \t]*[^\r]+?(\n{1,2}))(?=\n*(¨0| {0,3}([*+-]|\d+[.])[ \t]+))/gm,
+ isParagraphed = (/\n[ \t]*\n(?!¨0)/.test(listStr));
+
+ // Since version 1.5, nesting sublists requires 4 spaces (or 1 tab) indentation,
+ // which is a syntax breaking change
+ // activating this option reverts to old behavior
+ if (options.disableForced4SpacesIndentedSublists) {
+ rgx = /(\n)?(^ {0,3})([*+-]|\d+[.])[ \t]+((\[(x|X| )?])?[ \t]*[^\r]+?(\n{1,2}))(?=\n*(¨0|\2([*+-]|\d+[.])[ \t]+))/gm;
+ }
+
+ listStr = listStr.replace(rgx, function (wholeMatch, m1, m2, m3, m4, taskbtn, checked) {
+ checked = (checked && checked.trim() !== '');
+
+ var item = showdown.subParser('outdent')(m4, options, globals),
+ bulletStyle = '';
+
+ // Support for github tasklists
+ if (taskbtn && options.tasklists) {
+ bulletStyle = ' class="task-list-item" style="list-style-type: none;"';
+ item = item.replace(/^[ \t]*\[(x|X| )?]/m, function () {
+ var otp = 'a
+ // instead of:
+ // - - - a
+ // So, to prevent it, we will put a marker (¨A)in the beginning of the line
+ // Kind of hackish/monkey patching, but seems more effective than overcomplicating the list parser
+ item = item.replace(/^([-*+]|\d\.)[ \t]+[\S\n ]*/g, function (wm2) {
+ return '¨A' + wm2;
+ });
+
+ // m1 - Leading line or
+ // Has a double return (multi paragraph) or
+ // Has sublist
+ if (m1 || (item.search(/\n{2,}/) > -1)) {
+ item = showdown.subParser('githubCodeBlocks')(item, options, globals);
+ item = showdown.subParser('blockGamut')(item, options, globals);
+ } else {
+ // Recursion for sub-lists:
+ item = showdown.subParser('lists')(item, options, globals);
+ item = item.replace(/\n$/, ''); // chomp(item)
+ item = showdown.subParser('hashHTMLBlocks')(item, options, globals);
+
+ // Colapse double linebreaks
+ item = item.replace(/\n\n+/g, '\n\n');
+ if (isParagraphed) {
+ item = showdown.subParser('paragraphs')(item, options, globals);
+ } else {
+ item = showdown.subParser('spanGamut')(item, options, globals);
+ }
+ }
+
+ // now we need to remove the marker (¨A)
+ item = item.replace('¨A', '');
+ // we can finally wrap the line in list item tags
+ item = '' + item + '\n';
+
+ return item;
+ });
+
+ // attacklab: strip sentinel
+ listStr = listStr.replace(/¨0/g, '');
+
+ globals.gListLevel--;
+
+ if (trimTrailing) {
+ listStr = listStr.replace(/\s+$/, '');
+ }
+
+ return listStr;
+ }
+
+ function styleStartNumber(list, listType) {
+ // check if ol and starts by a number different than 1
+ if (listType === 'ol') {
+ var res = list.match(/^ *(\d+)\./);
+ if (res && res[1] !== '1') {
+ return ' start="' + res[1] + '"';
+ }
+ }
+ return '';
+ }
+
+ /**
+ * Check and parse consecutive lists (better fix for issue #142)
+ * @param {string} list
+ * @param {string} listType
+ * @param {boolean} trimTrailing
+ * @returns {string}
+ */
+ function parseConsecutiveLists(list, listType, trimTrailing) {
+ // check if we caught 2 or more consecutive lists by mistake
+ // we use the counterRgx, meaning if listType is UL we look for OL and vice versa
+ var olRgx = (options.disableForced4SpacesIndentedSublists) ? /^ ?\d+\.[ \t]/gm : /^ {0,3}\d+\.[ \t]/gm,
+ ulRgx = (options.disableForced4SpacesIndentedSublists) ? /^ ?[*+-][ \t]/gm : /^ {0,3}[*+-][ \t]/gm,
+ counterRxg = (listType === 'ul') ? olRgx : ulRgx,
+ result = '';
+
+ if (list.search(counterRxg) !== -1) {
+ (function parseCL(txt) {
+ var pos = txt.search(counterRxg),
+ style = styleStartNumber(list, listType);
+ if (pos !== -1) {
+ // slice
+ result += '\n\n<' + listType + style + '>\n' + processListItems(txt.slice(0, pos), !!trimTrailing) + '\n';
+
+ // invert counterType and listType
+ listType = (listType === 'ul') ? 'ol' : 'ul';
+ counterRxg = (listType === 'ul') ? olRgx : ulRgx;
+
+ //recurse
+ parseCL(txt.slice(pos));
+ } else {
+ result += '\n\n<' + listType + style + '>\n' + processListItems(txt, !!trimTrailing) + '\n';
+ }
+ })(list);
+ } else {
+ var style = styleStartNumber(list, listType);
+ result = '\n\n<' + listType + style + '>\n' + processListItems(list, !!trimTrailing) + '\n';
+ }
+
+ return result;
+ }
+
+ /** Start of list parsing **/
+ text = globals.converter._dispatch('lists.before', text, options, globals);
+ // add sentinel to hack around khtml/safari bug:
+ // http://bugs.webkit.org/show_bug.cgi?id=11231
+ text += '¨0';
+
+ if (globals.gListLevel) {
+ text = text.replace(/^(( {0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(¨0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm,
+ function (wholeMatch, list, m2) {
+ var listType = (m2.search(/[*+-]/g) > -1) ? 'ul' : 'ol';
+ return parseConsecutiveLists(list, listType, true);
+ }
+ );
+ } else {
+ text = text.replace(/(\n\n|^\n?)(( {0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(¨0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm,
+ function (wholeMatch, m1, list, m3) {
+ var listType = (m3.search(/[*+-]/g) > -1) ? 'ul' : 'ol';
+ return parseConsecutiveLists(list, listType, false);
+ }
+ );
+ }
+
+ // strip sentinel
+ text = text.replace(/¨0/, '');
+ text = globals.converter._dispatch('lists.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Parse metadata at the top of the document
+ */
+ showdown.subParser('metadata', function (text, options, globals) {
+ 'use strict';
+
+ if (!options.metadata) {
+ return text;
+ }
+
+ text = globals.converter._dispatch('metadata.before', text, options, globals);
+
+ function parseMetadataContents(content) {
+ // raw is raw so it's not changed in any way
+ globals.metadata.raw = content;
+
+ // escape chars forbidden in html attributes
+ // double quotes
+ content = content
+ // ampersand first
+ .replace(/&/g, '&')
+ // double quotes
+ .replace(/"/g, '"');
+
+ content = content.replace(/\n {4}/g, ' ');
+ content.replace(/^([\S ]+): +([\s\S]+?)$/gm, function (wm, key, value) {
+ globals.metadata.parsed[key] = value;
+ return '';
+ });
+ }
+
+ text = text.replace(/^\s*«««+(\S*?)\n([\s\S]+?)\n»»»+\n/, function (wholematch, format, content) {
+ parseMetadataContents(content);
+ return '¨M';
+ });
+
+ text = text.replace(/^\s*---+(\S*?)\n([\s\S]+?)\n---+\n/, function (wholematch, format, content) {
+ if (format) {
+ globals.metadata.format = format;
+ }
+ parseMetadataContents(content);
+ return '¨M';
+ });
+
+ text = text.replace(/¨M/g, '');
+
+ text = globals.converter._dispatch('metadata.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ * Remove one level of line-leading tabs or spaces
+ */
+ showdown.subParser('outdent', function (text, options, globals) {
+ 'use strict';
+ text = globals.converter._dispatch('outdent.before', text, options, globals);
+
+ // attacklab: hack around Konqueror 3.5.4 bug:
+ // "----------bug".replace(/^-/g,"") == "bug"
+ text = text.replace(/^(\t|[ ]{1,4})/gm, '¨0'); // attacklab: g_tab_width
+
+ // attacklab: clean up hack
+ text = text.replace(/¨0/g, '');
+
+ text = globals.converter._dispatch('outdent.after', text, options, globals);
+ return text;
+ });
+
+ /**
+ *
+ */
+ showdown.subParser('paragraphs', function (text, options, globals) {
+ 'use strict';
+
+ text = globals.converter._dispatch('paragraphs.before', text, options, globals);
+ // Strip leading and trailing lines:
+ text = text.replace(/^\n+/g, '');
+ text = text.replace(/\n+$/g, '');
+
+ var grafs = text.split(/\n{2,}/g),
+ grafsOut = [],
+ end = grafs.length; // Wrap tags
+
+ for (var i = 0; i < end; i++) {
+ var str = grafs[i];
+ // if this is an HTML marker, copy it
+ if (str.search(/¨(K|G)(\d+)\1/g) >= 0) {
+ grafsOut.push(str);
+
+ // test for presence of characters to prevent empty lines being parsed
+ // as paragraphs (resulting in undesired extra empty paragraphs)
+ } else if (str.search(/\S/) >= 0) {
+ str = showdown.subParser('spanGamut')(str, options, globals);
+ str = str.replace(/^([ \t]*)/g, '
');
+ str += '
';
+ grafsOut.push(str);
+ }
+ }
+
+ /** Unhashify HTML blocks */
+ end = grafsOut.length;
+ for (i = 0; i < end; i++) {
+ var blockText = '',
+ grafsOutIt = grafsOut[i],
+ codeFlag = false;
+ // if this is a marker for an html block...
+ // use RegExp.test instead of string.search because of QML bug
+ while (/¨(K|G)(\d+)\1/.test(grafsOutIt)) {
+ var delim = RegExp.$1,
+ num = RegExp.$2;
+
+ if (delim === 'K') {
+ blockText = globals.gHtmlBlocks[num];
+ } else {
+ // we need to check if ghBlock is a false positive
+ if (codeFlag) {
+ // use encoded version of all text
+ blockText = showdown.subParser('encodeCode')(globals.ghCodeBlocks[num].text, options, globals);
+ } else {
+ blockText = globals.ghCodeBlocks[num].codeblock;
+ }
+ }
+ blockText = blockText.replace(/\$/g, '$$$$'); // Escape any dollar signs
+
+ grafsOutIt = grafsOutIt.replace(/(\n\n)?¨(K|G)\d+\2(\n\n)?/, blockText);
+ // Check if grafsOutIt is a pre->code
+ if (/^]*>\s*]*>/.test(grafsOutIt)) {
+ codeFlag = true;
+ }
+ }
+ grafsOut[i] = grafsOutIt;
+ }
+ text = grafsOut.join('\n');
+ // Strip leading and trailing lines:
+ text = text.replace(/^\n+/g, '');
+ text = text.replace(/\n+$/g, '');
+ return globals.converter._dispatch('paragraphs.after', text, options, globals);
+ });
+
+ /**
+ * Run extension
+ */
+ showdown.subParser('runExtension', function (ext, text, options, globals) {
+ 'use strict';
+
+ if (ext.filter) {
+ text = ext.filter(text, globals.converter, options);
+
+ } else if (ext.regex) {
+ // TODO remove this when old extension loading mechanism is deprecated
+ var re = ext.regex;
+ if (!(re instanceof RegExp)) {
+ re = new RegExp(re, 'g');
+ }
+ text = text.replace(re, ext.replace);
+ }
+
+ return text;
+ });
+
+ /**
+ * These are all the transformations that occur *within* block-level
+ * tags like paragraphs, headers, and list items.
+ */
+ showdown.subParser('spanGamut', function (text, options, globals) {
+ 'use strict';
+
+ text = globals.converter._dispatch('spanGamut.before', text, options, globals);
+ text = showdown.subParser('codeSpans')(text, options, globals);
+ text = showdown.subParser('escapeSpecialCharsWithinTagAttributes')(text, options, globals);
+ text = showdown.subParser('encodeBackslashEscapes')(text, options, globals);
+
+ // Process anchor and image tags. Images must come first,
+ // because ![foo][f] looks like an anchor.
+ text = showdown.subParser('images')(text, options, globals);
+ text = showdown.subParser('anchors')(text, options, globals);
+
+ // Make links out of things like `).
+ text = showdown.subParser('autoLinks')(text, options, globals);
+ text = showdown.subParser('simplifiedAutoLinks')(text, options, globals);
+ text = showdown.subParser('emoji')(text, options, globals);
+ text = showdown.subParser('underline')(text, options, globals);
+ text = showdown.subParser('italicsAndBold')(text, options, globals);
+ text = showdown.subParser('strikethrough')(text, options, globals);
+ text = showdown.subParser('ellipsis')(text, options, globals);
+
+ // we need to hash HTML tags inside spans
+ text = showdown.subParser('hashHTMLSpans')(text, options, globals);
+
+ // now we encode amps and angles
+ text = showdown.subParser('encodeAmpsAndAngles')(text, options, globals);
+
+ // Do hard breaks
+ if (options.simpleLineBreaks) {
+ // GFM style hard breaks
+ // only add line breaks if the text does not contain a block (special case for lists)
+ if (!/\n\n¨K/.test(text)) {
+ text = text.replace(/\n+/g, '
\n');
+ }
+ } else {
+ // Vanilla hard breaks
+ text = text.replace(/ +\n/g, '
\n');
+ }
+
+ text = globals.converter._dispatch('spanGamut.after', text, options, globals);
+ return text;
+ });
+
+ showdown.subParser('strikethrough', function (text, options, globals) {
+ 'use strict';
+
+ function parseInside(txt) {
+ if (options.simplifiedAutoLink) {
+ txt = showdown.subParser('simplifiedAutoLinks')(txt, options, globals);
+ }
+ return '' + txt + '';
+ }
+
+ if (options.strikethrough) {
+ text = globals.converter._dispatch('strikethrough.before', text, options, globals);
+ text = text.replace(/(?:~){2}([\s\S]+?)(?:~){2}/g, function (wm, txt) { return parseInside(txt); });
+ text = globals.converter._dispatch('strikethrough.after', text, options, globals);
+ }
+
+ return text;
+ });
+
+ /**
+ * Strips link definitions from text, stores the URLs and titles in
+ * hash references.
+ * Link defs are in the form: ^[id]: url "optional title"
+ */
+ showdown.subParser('stripLinkDefinitions', function (text, options, globals) {
+ 'use strict';
+
+ var regex = /^ {0,3}\[(.+)]:[ \t]*\n?[ \t]*\s]+)>?(?: =([*\d]+[A-Za-z%]{0,4})x([*\d]+[A-Za-z%]{0,4}))?[ \t]*\n?[ \t]*(?:(\n*)["|'(](.+?)["|')][ \t]*)?(?:\n+|(?=¨0))/gm,
+ base64Regex = /^ {0,3}\[(.+)]:[ \t]*\n?[ \t]*?(?: =([*\d]+[A-Za-z%]{0,4})x([*\d]+[A-Za-z%]{0,4}))?[ \t]*\n?[ \t]*(?:(\n*)["|'(](.+?)["|')][ \t]*)?(?:\n\n|(?=¨0)|(?=\n\[))/gm;
+
+ // attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug
+ text += '¨0';
+
+ var replaceFunc = function (wholeMatch, linkId, url, width, height, blankLines, title) {
+ linkId = linkId.toLowerCase();
+ if (url.match(/^data:.+?\/.+?;base64,/)) {
+ // remove newlines
+ globals.gUrls[linkId] = url.replace(/\s/g, '');
+ } else {
+ globals.gUrls[linkId] = showdown.subParser('encodeAmpsAndAngles')(url, options, globals); // Link IDs are case-insensitive
+ }
+
+ if (blankLines) {
+ // Oops, found blank lines, so it's not a title.
+ // Put back the parenthetical statement we stole.
+ return blankLines + title;
+
+ } else {
+ if (title) {
+ globals.gTitles[linkId] = title.replace(/"|'/g, '"');
+ }
+ if (options.parseImgDimensions && width && height) {
+ globals.gDimensions[linkId] = {
+ width: width,
+ height: height
+ };
+ }
+ }
+ // Completely remove the definition from the text
+ return '';
+ };
+
+ // first we try to find base64 link references
+ text = text.replace(base64Regex, replaceFunc);
+
+ text = text.replace(regex, replaceFunc);
+
+ // attacklab: strip sentinel
+ text = text.replace(/¨0/, '');
+
+ return text;
+ });
+
+ showdown.subParser('tables', function (text, options, globals) {
+ 'use strict';
+
+ if (!options.tables) {
+ return text;
+ }
+
+ var tableRgx = /^ {0,3}\|?.+\|.+\n {0,3}\|?[ \t]*:?[ \t]*(?:[-=]){2,}[ \t]*:?[ \t]*\|[ \t]*:?[ \t]*(?:[-=]){2,}[\s\S]+?(?:\n\n|¨0)/gm,
+ //singeColTblRgx = /^ {0,3}\|.+\|\n {0,3}\|[ \t]*:?[ \t]*(?:[-=]){2,}[ \t]*:?[ \t]*\|[ \t]*\n(?: {0,3}\|.+\|\n)+(?:\n\n|¨0)/gm;
+ singeColTblRgx = /^ {0,3}\|.+\|[ \t]*\n {0,3}\|[ \t]*:?[ \t]*(?:[-=]){2,}[ \t]*:?[ \t]*\|[ \t]*\n( {0,3}\|.+\|[ \t]*\n)*(?:\n|¨0)/gm;
+
+ function parseStyles(sLine) {
+ if (/^:[ \t]*--*$/.test(sLine)) {
+ return ' style="text-align:left;"';
+ } else if (/^--*[ \t]*:[ \t]*$/.test(sLine)) {
+ return ' style="text-align:right;"';
+ } else if (/^:[ \t]*--*[ \t]*:$/.test(sLine)) {
+ return ' style="text-align:center;"';
+ } else {
+ return '';
+ }
+ }
+
+ function parseHeaders(header, style) {
+ var id = '';
+ header = header.trim();
+ // support both tablesHeaderId and tableHeaderId due to error in documentation so we don't break backwards compatibility
+ if (options.tablesHeaderId || options.tableHeaderId) {
+ id = ' id="' + header.replace(/ /g, '_').toLowerCase() + '"';
+ }
+ header = showdown.subParser('spanGamut')(header, options, globals);
+
+ return '' + header + '\n';
+ }
+
+ function parseCells(cell, style) {
+ var subText = showdown.subParser('spanGamut')(cell, options, globals);
+ return '' + subText + '\n';
+ }
+
+ function buildTable(headers, cells) {
+ var tb = '\n\n\n',
+ tblLgn = headers.length;
+
+ for (var i = 0; i < tblLgn; ++i) {
+ tb += headers[i];
+ }
+ tb += ' \n\n\n';
+
+ for (i = 0; i < cells.length; ++i) {
+ tb += '\n';
+ for (var ii = 0; ii < tblLgn; ++ii) {
+ tb += cells[i][ii];
+ }
+ tb += ' \n';
+ }
+ tb += '\n
\n';
+ return tb;
+ }
+
+ function parseTable(rawTable) {
+ var i, tableLines = rawTable.split('\n');
+
+ for (i = 0; i < tableLines.length; ++i) {
+ // strip wrong first and last column if wrapped tables are used
+ if (/^ {0,3}\|/.test(tableLines[i])) {
+ tableLines[i] = tableLines[i].replace(/^ {0,3}\|/, '');
+ }
+ if (/\|[ \t]*$/.test(tableLines[i])) {
+ tableLines[i] = tableLines[i].replace(/\|[ \t]*$/, '');
+ }
+ // parse code spans first, but we only support one line code spans
+ tableLines[i] = showdown.subParser('codeSpans')(tableLines[i], options, globals);
+ }
+
+ var rawHeaders = tableLines[0].split('|').map(function (s) { return s.trim(); }),
+ rawStyles = tableLines[1].split('|').map(function (s) { return s.trim(); }),
+ rawCells = [],
+ headers = [],
+ styles = [],
+ cells = [];
+
+ tableLines.shift();
+ tableLines.shift();
+
+ for (i = 0; i < tableLines.length; ++i) {
+ if (tableLines[i].trim() === '') {
+ continue;
+ }
+ rawCells.push(
+ tableLines[i]
+ .split('|')
+ .map(function (s) {
+ return s.trim();
+ })
+ );
+ }
+
+ if (rawHeaders.length < rawStyles.length) {
+ return rawTable;
+ }
+
+ for (i = 0; i < rawStyles.length; ++i) {
+ styles.push(parseStyles(rawStyles[i]));
+ }
+
+ for (i = 0; i < rawHeaders.length; ++i) {
+ if (showdown.helper.isUndefined(styles[i])) {
+ styles[i] = '';
+ }
+ headers.push(parseHeaders(rawHeaders[i], styles[i]));
+ }
+
+ for (i = 0; i < rawCells.length; ++i) {
+ var row = [];
+ for (var ii = 0; ii < headers.length; ++ii) {
+ if (showdown.helper.isUndefined(rawCells[i][ii])) {
+
+ }
+ row.push(parseCells(rawCells[i][ii], styles[ii]));
+ }
+ cells.push(row);
+ }
+
+ return buildTable(headers, cells);
+ }
+
+ text = globals.converter._dispatch('tables.before', text, options, globals);
+
+ // find escaped pipe characters
+ text = text.replace(/\\(\|)/g, showdown.helper.escapeCharactersCallback);
+
+ // parse multi column tables
+ text = text.replace(tableRgx, parseTable);
+
+ // parse one column tables
+ text = text.replace(singeColTblRgx, parseTable);
+
+ text = globals.converter._dispatch('tables.after', text, options, globals);
+
+ return text;
+ });
+
+ showdown.subParser('underline', function (text, options, globals) {
+ 'use strict';
+
+ if (!options.underline) {
+ return text;
+ }
+
+ text = globals.converter._dispatch('underline.before', text, options, globals);
+
+ if (options.literalMidWordUnderscores) {
+ text = text.replace(/\b___(\S[\s\S]*?)___\b/g, function (wm, txt) {
+ return '' + txt + '';
+ });
+ text = text.replace(/\b__(\S[\s\S]*?)__\b/g, function (wm, txt) {
+ return '' + txt + '';
+ });
+ } else {
+ text = text.replace(/___(\S[\s\S]*?)___/g, function (wm, m) {
+ return (/\S$/.test(m)) ? '' + m + '' : wm;
+ });
+ text = text.replace(/__(\S[\s\S]*?)__/g, function (wm, m) {
+ return (/\S$/.test(m)) ? '' + m + '' : wm;
+ });
+ }
+
+ // escape remaining underscores to prevent them being parsed by italic and bold
+ text = text.replace(/(_)/g, showdown.helper.escapeCharactersCallback);
+
+ text = globals.converter._dispatch('underline.after', text, options, globals);
+
+ return text;
+ });
+
+ /**
+ * Swap back in all the special characters we've hidden.
+ */
+ showdown.subParser('unescapeSpecialChars', function (text, options, globals) {
+ 'use strict';
+ text = globals.converter._dispatch('unescapeSpecialChars.before', text, options, globals);
+
+ text = text.replace(/¨E(\d+)E/g, function (wholeMatch, m1) {
+ var charCodeToReplace = parseInt(m1);
+ return String.fromCharCode(charCodeToReplace);
+ });
+
+ text = globals.converter._dispatch('unescapeSpecialChars.after', text, options, globals);
+ return text;
+ });
+
+ showdown.subParser('makeMarkdown.blockquote', function (node, globals) {
+ 'use strict';
+
+ var txt = '';
+ if (node.hasChildNodes()) {
+ var children = node.childNodes,
+ childrenLength = children.length;
+
+ for (var i = 0; i < childrenLength; ++i) {
+ var innerTxt = showdown.subParser('makeMarkdown.node')(children[i], globals);
+
+ if (innerTxt === '') {
+ continue;
+ }
+ txt += innerTxt;
+ }
+ }
+ // cleanup
+ txt = txt.trim();
+ txt = '> ' + txt.split('\n').join('\n> ');
+ return txt;
+ });
+
+ showdown.subParser('makeMarkdown.codeBlock', function (node, globals) {
+ 'use strict';
+
+ var lang = node.getAttribute('language'),
+ num = node.getAttribute('precodenum');
+ return '```' + lang + '\n' + globals.preList[num] + '\n```';
+ });
+
+ showdown.subParser('makeMarkdown.codeSpan', function (node) {
+ 'use strict';
+
+ return '`' + node.innerHTML + '`';
+ });
+
+ showdown.subParser('makeMarkdown.emphasis', function (node, globals) {
+ 'use strict';
+
+ var txt = '';
+ if (node.hasChildNodes()) {
+ txt += '*';
+ var children = node.childNodes,
+ childrenLength = children.length;
+ for (var i = 0; i < childrenLength; ++i) {
+ txt += showdown.subParser('makeMarkdown.node')(children[i], globals);
+ }
+ txt += '*';
+ }
+ return txt;
+ });
+
+ showdown.subParser('makeMarkdown.header', function (node, globals, headerLevel) {
+ 'use strict';
+
+ var headerMark = new Array(headerLevel + 1).join('#'),
+ txt = '';
+
+ if (node.hasChildNodes()) {
+ txt = headerMark + ' ';
+ var children = node.childNodes,
+ childrenLength = children.length;
+
+ for (var i = 0; i < childrenLength; ++i) {
+ txt += showdown.subParser('makeMarkdown.node')(children[i], globals);
+ }
+ }
+ return txt;
+ });
+
+ showdown.subParser('makeMarkdown.hr', function () {
+ 'use strict';
+
+ return '---';
+ });
+
+ showdown.subParser('makeMarkdown.image', function (node) {
+ 'use strict';
+
+ var txt = '';
+ if (node.hasAttribute('src')) {
+ txt += ' + '>';
+ if (node.hasAttribute('width') && node.hasAttribute('height')) {
+ txt += ' =' + node.getAttribute('width') + 'x' + node.getAttribute('height');
+ }
+
+ if (node.hasAttribute('title')) {
+ txt += ' "' + node.getAttribute('title') + '"';
+ }
+ txt += ')';
+ }
+ return txt;
+ });
+
+ showdown.subParser('makeMarkdown.links', function (node, globals) {
+ 'use strict';
+
+ var txt = '';
+ if (node.hasChildNodes() && node.hasAttribute('href')) {
+ var children = node.childNodes,
+ childrenLength = children.length;
+ txt = '[';
+ for (var i = 0; i < childrenLength; ++i) {
+ txt += showdown.subParser('makeMarkdown.node')(children[i], globals);
+ }
+ txt += '](';
+ txt += '<' + node.getAttribute('href') + '>';
+ if (node.hasAttribute('title')) {
+ txt += ' "' + node.getAttribute('title') + '"';
+ }
+ txt += ')';
+ }
+ return txt;
+ });
+
+ showdown.subParser('makeMarkdown.list', function (node, globals, type) {
+ 'use strict';
+
+ var txt = '';
+ if (!node.hasChildNodes()) {
+ return '';
+ }
+ var listItems = node.childNodes,
+ listItemsLenght = listItems.length,
+ listNum = node.getAttribute('start') || 1;
+
+ for (var i = 0; i < listItemsLenght; ++i) {
+ if (typeof listItems[i].tagName === 'undefined' || listItems[i].tagName.toLowerCase() !== 'li') {
+ continue;
+ }
+
+ // define the bullet to use in list
+ var bullet = '';
+ if (type === 'ol') {
+ bullet = listNum.toString() + '. ';
+ } else {
+ bullet = '- ';
+ }
+
+ // parse list item
+ txt += bullet + showdown.subParser('makeMarkdown.listItem')(listItems[i], globals);
+ ++listNum;
+ }
+
+ // add comment at the end to prevent consecutive lists to be parsed as one
+ txt += '\n\n';
+ return txt.trim();
+ });
+
+ showdown.subParser('makeMarkdown.listItem', function (node, globals) {
+ 'use strict';
+
+ var listItemTxt = '';
+
+ var children = node.childNodes,
+ childrenLenght = children.length;
+
+ for (var i = 0; i < childrenLenght; ++i) {
+ listItemTxt += showdown.subParser('makeMarkdown.node')(children[i], globals);
+ }
+ // if it's only one liner, we need to add a newline at the end
+ if (!/\n$/.test(listItemTxt)) {
+ listItemTxt += '\n';
+ } else {
+ // it's multiparagraph, so we need to indent
+ listItemTxt = listItemTxt
+ .split('\n')
+ .join('\n ')
+ .replace(/^ {4}$/gm, '')
+ .replace(/\n\n+/g, '\n\n');
+ }
+
+ return listItemTxt;
+ });
+
+
+
+ showdown.subParser('makeMarkdown.node', function (node, globals, spansOnly) {
+ 'use strict';
+
+ spansOnly = spansOnly || false;
+
+ var txt = '';
+
+ // edge case of text without wrapper paragraph
+ if (node.nodeType === 3) {
+ return showdown.subParser('makeMarkdown.txt')(node, globals);
+ }
+
+ // HTML comment
+ if (node.nodeType === 8) {
+ return '\n\n';
+ }
+
+ // process only node elements
+ if (node.nodeType !== 1) {
+ return '';
+ }
+
+ var tagName = node.tagName.toLowerCase();
+
+ switch (tagName) {
+
+ //
+ // BLOCKS
+ //
+ case 'h1':
+ if (!spansOnly) { txt = showdown.subParser('makeMarkdown.header')(node, globals, 1) + '\n\n'; }
+ break;
+ case 'h2':
+ if (!spansOnly) { txt = showdown.subParser('makeMarkdown.header')(node, globals, 2) + '\n\n'; }
+ break;
+ case 'h3':
+ if (!spansOnly) { txt = showdown.subParser('makeMarkdown.header')(node, globals, 3) + '\n\n'; }
+ break;
+ case 'h4':
+ if (!spansOnly) { txt = showdown.subParser('makeMarkdown.header')(node, globals, 4) + '\n\n'; }
+ break;
+ case 'h5':
+ if (!spansOnly) { txt = showdown.subParser('makeMarkdown.header')(node, globals, 5) + '\n\n'; }
+ break;
+ case 'h6':
+ if (!spansOnly) { txt = showdown.subParser('makeMarkdown.header')(node, globals, 6) + '\n\n'; }
+ break;
+
+ case 'p':
+ if (!spansOnly) { txt = showdown.subParser('makeMarkdown.paragraph')(node, globals) + '\n\n'; }
+ break;
+
+ case 'blockquote':
+ if (!spansOnly) { txt = showdown.subParser('makeMarkdown.blockquote')(node, globals) + '\n\n'; }
+ break;
+
+ case 'hr':
+ if (!spansOnly) { txt = showdown.subParser('makeMarkdown.hr')(node, globals) + '\n\n'; }
+ break;
+
+ case 'ol':
+ if (!spansOnly) { txt = showdown.subParser('makeMarkdown.list')(node, globals, 'ol') + '\n\n'; }
+ break;
+
+ case 'ul':
+ if (!spansOnly) { txt = showdown.subParser('makeMarkdown.list')(node, globals, 'ul') + '\n\n'; }
+ break;
+
+ case 'precode':
+ if (!spansOnly) { txt = showdown.subParser('makeMarkdown.codeBlock')(node, globals) + '\n\n'; }
+ break;
+
+ case 'pre':
+ if (!spansOnly) { txt = showdown.subParser('makeMarkdown.pre')(node, globals) + '\n\n'; }
+ break;
+
+ case 'table':
+ if (!spansOnly) { txt = showdown.subParser('makeMarkdown.table')(node, globals) + '\n\n'; }
+ break;
+
+ //
+ // SPANS
+ //
+ case 'code':
+ txt = showdown.subParser('makeMarkdown.codeSpan')(node, globals);
+ break;
+
+ case 'em':
+ case 'i':
+ txt = showdown.subParser('makeMarkdown.emphasis')(node, globals);
+ break;
+
+ case 'strong':
+ case 'b':
+ txt = showdown.subParser('makeMarkdown.strong')(node, globals);
+ break;
+
+ case 'del':
+ txt = showdown.subParser('makeMarkdown.strikethrough')(node, globals);
+ break;
+
+ case 'a':
+ txt = showdown.subParser('makeMarkdown.links')(node, globals);
+ break;
+
+ case 'img':
+ txt = showdown.subParser('makeMarkdown.image')(node, globals);
+ break;
+
+ default:
+ txt = node.outerHTML + '\n\n';
+ }
+
+ // common normalization
+ // TODO eventually
+
+ return txt;
+ });
+
+ showdown.subParser('makeMarkdown.paragraph', function (node, globals) {
+ 'use strict';
+
+ var txt = '';
+ if (node.hasChildNodes()) {
+ var children = node.childNodes,
+ childrenLength = children.length;
+ for (var i = 0; i < childrenLength; ++i) {
+ txt += showdown.subParser('makeMarkdown.node')(children[i], globals);
+ }
+ }
+
+ // some text normalization
+ txt = txt.trim();
+
+ return txt;
+ });
+
+ showdown.subParser('makeMarkdown.pre', function (node, globals) {
+ 'use strict';
+
+ var num = node.getAttribute('prenum');
+ return '' + globals.preList[num] + '
';
+ });
+
+ showdown.subParser('makeMarkdown.strikethrough', function (node, globals) {
+ 'use strict';
+
+ var txt = '';
+ if (node.hasChildNodes()) {
+ txt += '~~';
+ var children = node.childNodes,
+ childrenLength = children.length;
+ for (var i = 0; i < childrenLength; ++i) {
+ txt += showdown.subParser('makeMarkdown.node')(children[i], globals);
+ }
+ txt += '~~';
+ }
+ return txt;
+ });
+
+ showdown.subParser('makeMarkdown.strong', function (node, globals) {
+ 'use strict';
+
+ var txt = '';
+ if (node.hasChildNodes()) {
+ txt += '**';
+ var children = node.childNodes,
+ childrenLength = children.length;
+ for (var i = 0; i < childrenLength; ++i) {
+ txt += showdown.subParser('makeMarkdown.node')(children[i], globals);
+ }
+ txt += '**';
+ }
+ return txt;
+ });
+
+ showdown.subParser('makeMarkdown.table', function (node, globals) {
+ 'use strict';
+
+ var txt = '',
+ tableArray = [[], []],
+ headings = node.querySelectorAll('thead>tr>th'),
+ rows = node.querySelectorAll('tbody>tr'),
+ i, ii;
+ for (i = 0; i < headings.length; ++i) {
+ var headContent = showdown.subParser('makeMarkdown.tableCell')(headings[i], globals),
+ allign = '---';
+
+ if (headings[i].hasAttribute('style')) {
+ var style = headings[i].getAttribute('style').toLowerCase().replace(/\s/g, '');
+ switch (style) {
+ case 'text-align:left;':
+ allign = ':---';
+ break;
+ case 'text-align:right;':
+ allign = '---:';
+ break;
+ case 'text-align:center;':
+ allign = ':---:';
+ break;
+ }
+ }
+ tableArray[0][i] = headContent.trim();
+ tableArray[1][i] = allign;
+ }
+
+ for (i = 0; i < rows.length; ++i) {
+ var r = tableArray.push([]) - 1,
+ cols = rows[i].getElementsByTagName('td');
+
+ for (ii = 0; ii < headings.length; ++ii) {
+ var cellContent = ' ';
+ if (typeof cols[ii] !== 'undefined') {
+ cellContent = showdown.subParser('makeMarkdown.tableCell')(cols[ii], globals);
+ }
+ tableArray[r].push(cellContent);
+ }
+ }
+
+ var cellSpacesCount = 3;
+ for (i = 0; i < tableArray.length; ++i) {
+ for (ii = 0; ii < tableArray[i].length; ++ii) {
+ var strLen = tableArray[i][ii].length;
+ if (strLen > cellSpacesCount) {
+ cellSpacesCount = strLen;
+ }
+ }
+ }
+
+ for (i = 0; i < tableArray.length; ++i) {
+ for (ii = 0; ii < tableArray[i].length; ++ii) {
+ if (i === 1) {
+ if (tableArray[i][ii].slice(-1) === ':') {
+ tableArray[i][ii] = showdown.helper.padEnd(tableArray[i][ii].slice(-1), cellSpacesCount - 1, '-') + ':';
+ } else {
+ tableArray[i][ii] = showdown.helper.padEnd(tableArray[i][ii], cellSpacesCount, '-');
+ }
+ } else {
+ tableArray[i][ii] = showdown.helper.padEnd(tableArray[i][ii], cellSpacesCount);
+ }
+ }
+ txt += '| ' + tableArray[i].join(' | ') + ' |\n';
+ }
+
+ return txt.trim();
+ });
+
+ showdown.subParser('makeMarkdown.tableCell', function (node, globals) {
+ 'use strict';
+
+ var txt = '';
+ if (!node.hasChildNodes()) {
+ return '';
+ }
+ var children = node.childNodes,
+ childrenLength = children.length;
+
+ for (var i = 0; i < childrenLength; ++i) {
+ txt += showdown.subParser('makeMarkdown.node')(children[i], globals, true);
+ }
+ return txt.trim();
+ });
+
+ showdown.subParser('makeMarkdown.txt', function (node) {
+ 'use strict';
+
+ var txt = node.nodeValue;
+
+ // multiple spaces are collapsed
+ txt = txt.replace(/ +/g, ' ');
+
+ // replace the custom ¨NBSP; with a space
+ txt = txt.replace(/¨NBSP;/g, ' ');
+
+ // ", <, > and & should replace escaped html entities
+ txt = showdown.helper.unescapeHTMLEntities(txt);
+
+ // escape markdown magic characters
+ // emphasis, strong and strikethrough - can appear everywhere
+ // we also escape pipe (|) because of tables
+ // and escape ` because of code blocks and spans
+ txt = txt.replace(/([*_~|`])/g, '\\$1');
+
+ // escape > because of blockquotes
+ txt = txt.replace(/^(\s*)>/g, '\\$1>');
+
+ // hash character, only troublesome at the beginning of a line because of headers
+ txt = txt.replace(/^#/gm, '\\#');
+
+ // horizontal rules
+ txt = txt.replace(/^(\s*)([-=]{3,})(\s*)$/, '$1\\$2$3');
+
+ // dot, because of ordered lists, only troublesome at the beginning of a line when preceded by an integer
+ txt = txt.replace(/^( {0,3}\d+)\./gm, '$1\\.');
+
+ // +, * and -, at the beginning of a line becomes a list, so we need to escape them also (asterisk was already escaped)
+ txt = txt.replace(/^( {0,3})([+-])/gm, '$1\\$2');
+
+ // images and links, ] followed by ( is problematic, so we escape it
+ txt = txt.replace(/]([\s]*)\(/g, '\\]$1\\(');
+
+ // reference URIs must also be escaped
+ txt = txt.replace(/^ {0,3}\[([\S \t]*?)]:/gm, '\\[$1]:');
+
+ return txt;
+ });
+
+ export var Markdown = showdown;
\ No newline at end of file
diff --git a/Utils/Parser/license.txt b/Utils/Parser/license.txt
new file mode 100644
index 0000000..2e8af8a
--- /dev/null
+++ b/Utils/Parser/license.txt
@@ -0,0 +1,34 @@
+Showdown Copyright (c) 2007, John Fraser
+