;/*! showdown 26-05-2015 */ (function(){ /** * Created by Tivie on 06-01-2015. */ // Private properties var showdown = {}, parsers = {}, extensions = {}, globalOptions = { omitExtraWLInCodeBlocks: false, prefixHeaderId: false }; /** * helper namespace * @type {{}} */ showdown.helper = {}; // Public properties showdown.extensions = {}; /** * Set a global option * @static * @param {string} key * @param {string} value * @returns {showdown} */ showdown.setOption = function (key, value) { 'use strict'; globalOptions[key] = value; return this; }; /** * Get a global option * @static * @param {string} key * @returns {*} */ showdown.getOption = function (key) { 'use strict'; return globalOptions[key]; }; /** * Get the global options * @static * @returns {{omitExtraWLInCodeBlocks: boolean, prefixHeaderId: boolean}} */ showdown.getOptions = function () { 'use strict'; return globalOptions; }; /** * Get or set a subParser * * subParser(name) - Get a registered subParser * subParser(name, func) - Register a subParser * @static * @param {string} name * @param {function} [func] * @returns {*} */ showdown.subParser = function (name, func) { 'use strict'; if (showdown.helper.isString(name)) { if (typeof func !== 'undefined') { parsers[name] = func; } else { if (parsers.hasOwnProperty(name)) { return parsers[name]; } else { throw Error('SubParser named ' + name + ' not registered!'); } } } }; showdown.extension = function (name, ext) { 'use strict'; if (!showdown.helper.isString(name)) { throw Error('Extension \'name\' must be a string'); } name = showdown.helper.stdExtName(name); if (showdown.helper.isUndefined(ext)) { return getExtension(); } else { return setExtension(); } }; function getExtension(name) { 'use strict'; if (!extensions.hasOwnProperty(name)) { throw Error('Extension named ' + name + ' is not registered!'); } return extensions[name]; } function setExtension(name, ext) { 'use strict'; if (typeof ext !== 'object') { throw Error('A Showdown Extension must be an object, ' + typeof ext + ' given'); } if (!showdown.helper.isString(ext.type)) { throw Error('When registering a showdown extension, "type" must be a string, ' + typeof ext.type + ' given'); } ext.type = ext.type.toLowerCase(); extensions[name] = ext; } /** * Showdown Converter class * * @param {object} [converterOptions] * @returns {{makeHtml: Function}} */ showdown.Converter = function (converterOptions) { 'use strict'; converterOptions = converterOptions || {}; var options = {}, langExtensions = [], outputModifiers = [], parserOrder = [ 'githubCodeBlocks', 'hashHTMLBlocks', 'stripLinkDefinitions', 'blockGamut', 'unescapeSpecialChars' ]; 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]; } } } // This is a dirty workaround to maintain backwards extension compatibility // We define a self var (which is a copy of this) and inject the makeHtml function // directly to it. This ensures a full converter object is available when iterating over extensions // We should rewrite the extension loading mechanism and use some kind of interface or decorator pattern // and inject the object reference there instead. var self = this; self.makeHtml = makeHtml; // Parse options if (options.extensions) { // Iterate over each plugin showdown.helper.forEach(options.extensions, function (plugin) { var pluginName = plugin; // Assume it's a bundled plugin if a string is given if (typeof plugin === 'string') { var tPluginName = showdown.helper.stdExtName(plugin); if (!showdown.helper.isUndefined(showdown.extensions[tPluginName]) && showdown.extensions[tPluginName]) { //Trigger some kind of deprecated alert plugin = showdown.extensions[tPluginName]; } else if (!showdown.helper.isUndefined(extensions[tPluginName])) { plugin = extensions[tPluginName]; } } if (typeof plugin === 'function') { // Iterate over each extension within that plugin showdown.helper.forEach(plugin(self), function (ext) { // Sort extensions by type if (ext.type) { if (ext.type === 'language' || ext.type === 'lang') { langExtensions.push(ext); } else if (ext.type === 'output' || ext.type === 'html') { outputModifiers.push(ext); } } else { // Assume language extension outputModifiers.push(ext); } }); } else { var errMsg = 'An extension could not be loaded. It was either not found or is not a valid extension.'; if (typeof pluginName === 'string') { errMsg = 'Extension "' + pluginName + '" could not be loaded. It was either not found or is not a valid extension.'; } throw errMsg; } }); } /** * Converts a markdown string into HTML * @param {string} text * @returns {*} */ function makeHtml(text) { //check if text is not falsy if (!text) { return text; } var globals = { gHtmlBlocks: [], gUrls: {}, gTitles: {}, gListLevel: 0, hashLinkCounts: {}, langExtensions: langExtensions, outputModifiers: outputModifiers }; // attacklab: Replace ~ with ~T // This lets us use tilde 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'); // attacklab: 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 // Make sure text begins and ends with a couple of newlines: text = '\n\n' + text + '\n\n'; // detab text = parsers.detab(text, options, globals); // stripBlankLines text = parsers.stripBlankLines(text, options, globals); //run languageExtensions text = parsers.languageExtensions(text, options, globals); // Run all registered parsers for (var i = 0; i < parserOrder.length; ++i) { var name = parserOrder[i]; text = parsers[name](text, options, globals); } // attacklab: Restore dollar signs text = text.replace(/~D/g, '$$'); // attacklab: Restore tildes text = text.replace(/~T/g, '~'); // Run output modifiers showdown.helper.forEach(globals.outputModifiers, function (ext) { text = showdown.subParser('runExtension')(ext, text); }); text = parsers.outputModifiers(text, options, globals); return text; } return { makeHtml: makeHtml }; }; /** * showdownjs helper functions */ if (!showdown.hasOwnProperty('helper')) { showdown.helper = {}; } /** * Check if var is string * @static * @param {string} a * @returns {boolean} */ showdown.helper.isString = function isString(a) { 'use strict'; return (typeof a === 'string' || a instanceof String); }; /** * ForEach helper function * @static * @param {*} obj * @param {function} callback */ showdown.helper.forEach = function forEach(obj, callback) { 'use strict'; if (typeof obj.forEach === 'function') { obj.forEach(callback); } else { for (var i = 0; i < obj.length; i++) { callback(obj[i], i, obj); } } }; /** * isArray helper function * @static * @param {*} a * @returns {boolean} */ showdown.helper.isArray = function isArray(a) { 'use strict'; return a.constructor === Array; }; /** * Check if value is undefined * @static * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. */ showdown.helper.isUndefined = function isUndefined(value) { 'use strict'; return typeof value === 'undefined'; }; /** * Standardidize extension name * @static * @param {string} s extension name * @returns {string} */ showdown.helper.stdExtName = function (s) { 'use strict'; return s.replace(/[_-]||\s/g, '').toLowerCase(); }; function escapeCharactersCallback(wholeMatch, m1) { 'use strict'; var charCodeToEscape = m1.charCodeAt(0); return '~E' + charCodeToEscape + 'E'; } /** * Callback used to escape characters when passing through String.replace * @static * @param {string} wholeMatch * @param {string} m1 * @returns {string} */ showdown.helper.escapeCharactersCallback = escapeCharactersCallback; /** * Escape characters in a string * @static * @param {string} text * @param {string} charsToEscape * @param {boolean} afterBackslash * @returns {XML|string|void|*} */ showdown.helper.escapeCharacters = function escapeCharacters(text, charsToEscape, afterBackslash) { 'use strict'; // First we have to escape the escape characters so that // we can build a character class out of them var regexString = '([' + charsToEscape.replace(/([\[\]\\])/g, '\\$1') + '])'; if (afterBackslash) { regexString = '\\\\' + regexString; } var regex = new RegExp(regexString, 'g'); text = text.replace(regex, escapeCharactersCallback); return text; }; /** * Turn Markdown link shortcuts into XHTML tags. */ showdown.subParser('anchors', function (text, config, globals) { 'use strict'; var writeAnchorTag = function (wholeMatch, m1, m2, m3, m4, m5, m6, m7) { if (showdown.helper.isUndefined(m7)) { m7 = ''; } wholeMatch = m1; var linkText = m2, linkId = m3.toLowerCase(), url = m4, title = m7; if (!url) { if (!linkId) { // lower-case and turn embedded newlines into spaces linkId = linkText.toLowerCase().replace(/ ?\n/g, ' '); } url = '#' + linkId; if (!showdown.helper.isUndefined(globals.gUrls[linkId])) { url = globals.gUrls[linkId]; if (!showdown.helper.isUndefined(globals.gTitles[linkId])) { title = globals.gTitles[linkId]; } } else { if (wholeMatch.search(/\(\s*\)$/m) > -1) { // Special case for explicit empty url url = ''; } else { return wholeMatch; } } } url = showdown.helper.escapeCharacters(url, '*_', false); var result = ''; return result; }; // First, handle reference-style links: [link text] [id] /* text = text.replace(/ ( // wrap whole match in $1 \[ ( (?: \[[^\]]*\] // allow brackets nested one level | [^\[] // or anything else )* ) \] [ ]? // one optional space (?:\n[ ]*)? // one optional newline followed by spaces \[ (.*?) // id = $3 \] )()()()() // pad remaining backreferences /g,_DoAnchors_callback); */ text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g, writeAnchorTag); // // Next, inline-style links: [link text](url "optional title") // /* text = text.replace(/ ( // wrap whole match in $1 \[ ( (?: \[[^\]]*\] // allow brackets nested one level | [^\[\]] // or anything else ) ) \] \( // literal paren [ \t]* () // no id, so leave $3 empty ? // href = $4 [ \t]* ( // $5 (['"]) // quote char = $6 (.*?) // Title = $7 \6 // matching quote [ \t]* // ignore any spaces/tabs between closing quote and ) )? // title is optional \) ) /g,writeAnchorTag); */ text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\]\([ \t]*()?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g, writeAnchorTag); // // Last, handle reference-style shortcuts: [link text] // These must come last in case you've also got [link test][1] // or [link test](/foo) // /* text = text.replace(/ ( // wrap whole match in $1 \[ ([^\[\]]+) // link text = $2; can't contain '[' or ']' \] )()()()()() // pad rest of backreferences /g, writeAnchorTag); */ text = text.replace(/(\[([^\[\]]+)\])()()()()()/g, writeAnchorTag); return text; }); showdown.subParser('autoLinks', function (text) { 'use strict'; text = text.replace(/<((https?|ftp|dict):[^'">\s]+)>/gi, '$1'); // Email addresses: /* text = text.replace(/ < (?:mailto:)? ( [-.\w]+ \@ [-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+ ) > /gi); */ var pattern = /<(?:mailto:)?([-.\w]+\@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi; text = text.replace(pattern, function (wholeMatch, m1) { var unescapedStr = showdown.subParser('unescapeSpecialChars')(m1); return showdown.subParser('encodeEmailAddress')(unescapedStr); }); return text; }); /** * These are all the transformations that form block-level * tags like paragraphs, headers, and list items. */ showdown.subParser('blockGamut', function (text, options, globals) { 'use strict'; text = showdown.subParser('headers')(text, options, globals); // Do Horizontal Rules: var key = showdown.subParser('hashBlock')('
', options, globals); text = text.replace(/^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$/gm, key); text = text.replace(/^[ ]{0,2}([ ]?\-[ ]?){3,}[ \t]*$/gm, key); text = text.replace(/^[ ]{0,2}([ ]?\_[ ]?){3,}[ \t]*$/gm, key); text = showdown.subParser('lists')(text, options, globals); text = showdown.subParser('codeBlocks')(text, options, globals); text = showdown.subParser('blockQuotes')(text, options, globals); // We already ran _HashHTMLBlocks() before, in Markdown(), but that // was to escape raw HTML in the original Markdown source. This time, // we're escaping the markup we've just created, so that we don't wrap //

tags around block-level tags. text = showdown.subParser('hashHTMLBlocks')(text, options, globals); text = showdown.subParser('paragraphs')(text, options, globals); return text; }); showdown.subParser('blockQuotes', function (text, options, globals) { 'use strict'; /* text = text.replace(/ ( // Wrap whole match in $1 ( ^[ \t]*>[ \t]? // '>' at the start of a line .+\n // rest of the first line (.+\n)* // subsequent consecutive lines \n* // blanks )+ ) /gm, function(){...}); */ text = text.replace(/((^[ \t]*>[ \t]?.+\n(.+\n)*\n*)+)/gm, function (wholeMatch, m1) { var bq = m1; // attacklab: hack around Konqueror 3.5.4 bug: // "----------bug".replace(/^-/g,"") == "bug" bq = bq.replace(/^[ \t]*>[ \t]?/gm, '~0'); // trim one level of quoting // attacklab: clean up hack bq = bq.replace(/~0/g, ''); bq = bq.replace(/^[ \t]+$/gm, ''); // trim whitespace-only lines bq = showdown.subParser('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); }); return text; }); /** * Process Markdown `
` blocks.
 */
showdown.subParser('codeBlocks', function (text, options, globals) {
  'use strict';

  /*
   text = text.replace(text,
   /(?:\n\n|^)
   (								// $1 = the code block -- one or more lines, starting with a space/tab
   (?:
   (?:[ ]{4}|\t)			// Lines must start with a tab or a tab-width of spaces - attacklab: g_tab_width
   .*\n+
   )+
   )
   (\n*[ ]{0,3}[^ \t\n]|(?=~0))	// attacklab: g_tab_width
   /g,function(){...});
   */

  // attacklab: 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;

    codeblock = showdown.subParser('outdent')(codeblock);
    codeblock = showdown.subParser('encodeCode')(codeblock);
    codeblock = showdown.subParser('detab')(codeblock);
    codeblock = codeblock.replace(/^\n+/g, ''); // trim leading newlines
    codeblock = codeblock.replace(/\n+$/g, ''); // trim trailing whitespace

    codeblock = '
' + codeblock + '\n
'; return showdown.subParser('hashBlock')(codeblock, options, globals) + nextChar; }); // attacklab: strip sentinel text = text.replace(/~0/, ''); return text; }); /** * * * Backtick quotes are used for spans. * * * You can use multiple backticks as the delimiters if you want to * include literal backticks in the code span. So, this input: * * Just type ``foo `bar` baz`` at the prompt. * * Will translate to: * *

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) { 'use strict'; /* text = text.replace(/ (^|[^\\]) // Character before opening ` can't be a backslash (`+) // $2 = Opening run of ` ( // $3 = The code block [^\r]*? [^`] // attacklab: work around lack of lookbehind ) \2 // Matching closer (?!`) /gm, function(){...}); */ text = text.replace(/(^|[^\\])(`+)([^\r]*?[^`])\2(?!`)/gm, function (wholeMatch, m1, m2, m3) { var c = m3; c = c.replace(/^([ \t]*)/g, ''); // leading whitespace c = c.replace(/[ \t]*$/g, ''); // trailing whitespace c = showdown.subParser('encodeCode')(c); return m1 + '' + c + ''; }); return text; }); /** * Convert all tabs to spaces */ showdown.subParser('detab', function (text) { 'use strict'; // 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, ''); return text; }); /** * Smart processing for ampersands and angle brackets that need to be encoded. */ showdown.subParser('encodeAmpsAndAngles', function (text) { 'use strict'; // 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, '<'); 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) { 'use strict'; text = text.replace(/\\(\\)/g, showdown.helper.escapeCharactersCallback); text = text.replace(/\\([`*_{}\[\]()>#+-.!])/g, showdown.helper.escapeCharactersCallback); 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) { 'use strict'; // Encode all ampersands; HTML entities are not // entities within a Markdown code span. text = text.replace(/&/g, '&'); // Do the angle bracket song and dance: text = text.replace(//g, '>'); // Now, escape characters that are magic in Markdown: text = showdown.helper.escapeCharacters(text, '*_{}[]\\', false); // jj the line above breaks this: //--- //* Item // 1. Subitem // special char: * // --- return text; }); /** * Input: an email address, e.g. "foo@example.com" * * Output: the email address as a mailto link, with each character * of the address encoded as either a decimal or hex entity, in * the hopes of foiling most address harvesting spam bots. E.g.: * * foo * @example.com * * Based on a filter by Matthew Wickline, posted to the BBEdit-Talk * mailing list: * */ showdown.subParser('encodeEmailAddress', function (addr) { 'use strict'; var encode = [ function (ch) { return '&#' + ch.charCodeAt(0) + ';'; }, function (ch) { return '&#x' + ch.charCodeAt(0).toString(16) + ';'; }, function (ch) { return ch; } ]; addr = 'mailto:' + addr; addr = addr.replace(/./g, function (ch) { if (ch === '@') { // this *must* be encoded. I insist. ch = encode[Math.floor(Math.random() * 2)](ch); } else if (ch !== ':') { // leave ':' alone (to spot mailto: later) var r = Math.random(); // roughly 10% raw, 45% hex, 45% dec ch = ( r > 0.9 ? encode[2](ch) : r > 0.45 ? encode[1](ch) : encode[0](ch) ); } return ch; }); addr = '' + addr + ''; addr = addr.replace(/">.+:/g, '">'); // strip the mailto: from the visible part return addr; }); /** * 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) { 'use strict'; // Build a regex to find HTML tags and comments. See Friedl's // "Mastering Regular Expressions", 2nd Ed., pp. 200-201. var regex = /(<[a-z\/!$]("[^"]*"|'[^']*'|[^'">])*>|)/gi; text = text.replace(regex, function (wholeMatch) { var tag = wholeMatch.replace(/(.)<\/?code>(?=.)/g, '$1`'); tag = showdown.helper.escapeCharacters(tag, '\\`*_', false); return tag; }); return text; }); /** * Handle github codeblocks prior to running HashHTML so that * HTML contained within the codeblock gets escaped properly * Example: * ```ruby * def hello_world(x) * puts "Hello, #{x}" * end * ``` */ showdown.subParser('githubCodeBlocks', function (text, options, globals) { 'use strict'; text += '~0'; text = text.replace(/(?:^|\n)```(.*)\n([\s\S]*?)\n```/g, function (wholeMatch, m1, m2) { var language = m1, codeblock = m2, end = '\n'; if (options.omitExtraWLInCodeBlocks) { end = ''; } codeblock = showdown.subParser('encodeCode')(codeblock); codeblock = showdown.subParser('detab')(codeblock); codeblock = codeblock.replace(/^\n+/g, ''); // trim leading newlines codeblock = codeblock.replace(/\n+$/g, ''); // trim trailing whitespace codeblock = '
' + codeblock + end + '
'; return showdown.subParser('hashBlock')(codeblock, options, globals); }); // attacklab: strip sentinel text = text.replace(/~0/, ''); return text; }); showdown.subParser('hashBlock', function (text, options, globals) { 'use strict'; text = text.replace(/(^\n+|\n+$)/g, ''); return '\n\n~K' + (globals.gHtmlBlocks.push(text) - 1) + 'K\n\n'; }); showdown.subParser('hashElement', function (text, options, globals) { 'use strict'; return function (wholeMatch, m1) { var blockText = m1; // Undo double lines blockText = blockText.replace(/\n\n/g, '\n'); blockText = blockText.replace(/^\n/, ''); // strip trailing blank lines blockText = blockText.replace(/\n+$/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'; // attacklab: Double up blank lines to reduce lookaround text = text.replace(/\n/g, '\n\n'); // Hashify HTML blocks: // We only want to do this for block-level HTML tags, such as headers, // lists, and tables. That's because we still want to wrap

s around // "paragraphs" that are wrapped in non-block-level tags, such as anchors, // phrase emphasis, and spans. The list of tags we're looking for is // hard-coded: //var block_tags_a = // 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del|style|section|header|footer|nav|article|aside'; // var block_tags_b = // 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|style|section|header|footer|nav|article|aside'; // First, look for nested blocks, e.g.: //

//
// tags for inner block must be indented. //
//
// // The outermost tags must start at the left margin for this to match, and // the inner nested divs must be indented. // We need to do this before the next, more liberal match, because the next // match will start at the first `
` and stop at the first `
`. // attacklab: This regex can be expensive when it fails. /* var text = text.replace(/ ( // save in $1 ^ // start of line (with /m) <($block_tags_a) // start tag = $2 \b // word break // attacklab: hack around khtml/pcre bug... [^\r]*?\n // any number of lines, minimally matching // the matching end tag [ \t]* // trailing spaces/tabs (?=\n+) // followed by a newline ) // attacklab: there are sentinel newlines at end of document /gm,function(){...}}; */ text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del)\b[^\r]*?\n<\/\2>[ \t]*(?=\n+))/gm, showdown.subParser('hashElement')(text, options, globals)); // // Now match more liberally, simply from `\n` to `\n` // /* var text = text.replace(/ ( // save in $1 ^ // start of line (with /m) <($block_tags_b) // start tag = $2 \b // word break // attacklab: hack around khtml/pcre bug... [^\r]*? // any number of lines, minimally matching // the matching end tag [ \t]* // trailing spaces/tabs (?=\n+) // followed by a newline ) // attacklab: there are sentinel newlines at end of document /gm,function(){...}}; */ text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|style|section|header|footer|nav|article|aside|address|audio|canvas|figure|hgroup|output|video)\b[^\r]*?<\/\2>[ \t]*(?=\n+)\n)/gm, showdown.subParser('hashElement')(text, options, globals)); // Special case just for
. It was easier to make a special case than // to make the other regex more complicated. /* text = text.replace(/ ( // save in $1 \n\n // Starting after a blank line [ ]{0,3} (<(hr) // start tag = $2 \b // word break ([^<>])*? // \/?>) // the matching end tag [ \t]* (?=\n{2,}) // followed by a blank line ) /g,showdown.subParser('hashElement')(text, options, globals)); */ 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 = text.replace(/ ( // save in $1 \n\n // Starting after a blank line [ ]{0,3} // attacklab: g_tab_width - 1 [ \t]* (?=\n{2,}) // followed by a blank line ) /g,showdown.subParser('hashElement')(text, options, globals)); */ text = text.replace(/(\n\n[ ]{0,3}[ \t]*(?=\n{2,}))/g, showdown.subParser('hashElement')(text, options, globals)); // PHP and ASP-style processor instructions ( and <%...%>) /* text = text.replace(/ (?: \n\n // Starting after a blank line ) ( // save in $1 [ ]{0,3} // attacklab: g_tab_width - 1 (?: <([?%]) // $2 [^\r]*? \2> ) [ \t]* (?=\n{2,}) // followed by a blank line ) /g,showdown.subParser('hashElement')(text, options, globals)); */ text = text.replace(/(?:\n\n)([ ]{0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g, showdown.subParser('hashElement')(text, options, globals)); // attacklab: Undo double lines (see comment at top of this function) text = text.replace(/\n\n/g, '\n'); return text; }); showdown.subParser('headers', function (text, options, globals) { 'use strict'; var prefixHeader = options.prefixHeaderId; // Set text-style headers: // Header 1 // ======== // // Header 2 // -------- // text = text.replace(/^(.+)[ \t]*\n=+[ \t]*\n+/gm, function (wholeMatch, m1) { var spanGamut = showdown.subParser('spanGamut')(m1, options, globals), hashBlock = '

' + spanGamut + '

'; return showdown.subParser('hashBlock')(hashBlock, options, globals); }); text = text.replace(/^(.+)[ \t]*\n-+[ \t]*\n+/gm, function (matchFound, m1) { var spanGamut = showdown.subParser('spanGamut')(m1, options, globals), hashBlock = '

' + spanGamut + '

'; return showdown.subParser('hashBlock')(hashBlock, options, globals); }); // atx-style headers: // # Header 1 // ## Header 2 // ## Header 2 with closing hashes ## // ... // ###### Header 6 // /* text = text.replace(/ ^(\#{1,6}) // $1 = string of #'s [ \t]* (.+?) // $2 = Header text [ \t]* \#* // optional closing #'s (not counted) \n+ /gm, function() {...}); */ text = text.replace(/^(\#{1,6})[ \t]*(.+?)[ \t]*\#*\n+/gm, function (wholeMatch, m1, m2) { var span = showdown.subParser('spanGamut')(m2, options, globals), header = '' + span + ''; return showdown.subParser('hashBlock')(header, options, globals); }); function headerId(m) { var title, escapedId = m.replace(/[^\w]/g, '').toLowerCase(); if (globals.hashLinkCounts[escapedId]) { title = escapedId + '-' + (globals.hashLinkCounts[escapedId]++); } else { title = escapedId; globals.hashLinkCounts[escapedId] = 1; } // Prefix id to prevent causing inadvertent pre-existing style matches. if (prefixHeader === true) { prefixHeader = 'section'; } if (showdown.helper.isString(prefixHeader)) { return prefixHeader + title; } return title; } return text; }); /** * Turn Markdown image shortcuts into tags. */ showdown.subParser('images', function (text, options, globals) { 'use strict'; var writeImageTag = function (wholeMatch, m1, m2, m3, m4, m5, m6, m7) { wholeMatch = m1; var altText = m2, linkId = m3.toLowerCase(), url = m4, title = m7, gUrls = globals.gUrls, gTitles = globals.gTitles; if (!title) { title = ''; } 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 (typeof gUrls[linkId] !== 'undefined') { url = gUrls[linkId]; if (typeof gTitles[linkId] !== 'undefined') { title = gTitles[linkId]; } } else { return wholeMatch; } } altText = altText.replace(/"/g, '"'); url = showdown.helper.escapeCharacters(url, '*_', false); var result = '' + altText + '? // src url = $4 [ \t]* ( // $5 (['"]) // quote char = $6 (.*?) // title = $7 \6 // matching quote [ \t]* )? // title is optional \) ) /g,writeImageTag); */ text = text.replace(/(!\[(.*?)\]\s?\([ \t]*()?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g, writeImageTag); return text; }); showdown.subParser('italicsAndBold', function (text) { 'use strict'; // must go first: text = text.replace(/(\*\*|__)(?=\S)([^\r]*?\S[*_]*)\1/g, '$2'); text = text.replace(/(\*|_)(?=\S)([^\r]*?\S)\1/g, '$2'); return text; }); /** * Run language extensions */ showdown.subParser('languageExtensions', function (text, config, globals) { 'use strict'; showdown.helper.forEach(globals.langExtensions, function (ext) { text = showdown.subParser('runExtension')(ext, text); }); 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 * @returns {string|*} */ var processListItems = function (listStr) { // 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'; /* list_str = list_str.replace(/ (\n)? // leading line = $1 (^[ \t]*) // leading whitespace = $2 ([*+-]|\d+[.]) [ \t]+ // list marker = $3 ([^\r]+? // list item text = $4 (\n{1,2})) (?= \n* (~0 | \2 ([*+-]|\d+[.]) [ \t]+)) /gm, function(){...}); */ listStr = listStr.replace(/(\n)?(^[ \t]*)([*+-]|\d+[.])[ \t]+([^\r]+?(\n{1,2}))(?=\n*(~0|\2([*+-]|\d+[.])[ \t]+))/gm, function (wholeMatch, m1, m2, m3, m4) { var item = showdown.subParser('outdent')(m4, options, globals); //m1 - LeadingLine if (m1 || (item.search(/\n{2,}/) > -1)) { item = showdown.subParser('blockGamut')(item, options, globals); } else { // Recursion for sub-lists: item = showdown.subParser('lists')(item, options, globals); item = item.replace(/\n$/, ''); // chomp(item) item = showdown.subParser('spanGamut')(item, options, globals); } return '
  • ' + item + '
  • \n'; }); // attacklab: strip sentinel listStr = listStr.replace(/~0/g, ''); globals.gListLevel--; return listStr; }; // attacklab: add sentinel to hack around khtml/safari bug: // http://bugs.webkit.org/show_bug.cgi?id=11231 text += '~0'; // Re-usable pattern to match any entirel ul or ol list: /* var whole_list = / ( // $1 = whole list ( // $2 [ ]{0,3} // attacklab: g_tab_width - 1 ([*+-]|\d+[.]) // $3 = first list item marker [ \t]+ ) [^\r]+? ( // $4 ~0 // sentinel for workaround; should be $ | \n{2,} (?=\S) (?! // Negative lookahead for another list item marker [ \t]* (?:[*+-]|\d+[.])[ \t]+ ) ) )/g */ var wholeList = /^(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm; if (globals.gListLevel) { text = text.replace(wholeList, function (wholeMatch, m1, m2) { var list = m1, listType = (m2.search(/[*+-]/g) > -1) ? 'ul' : 'ol'; // Turn double returns into triple returns, so that we can make a // paragraph for the last item in a list, if necessary: list = list.replace(/\n{2,}/g, '\n\n\n'); var result = processListItems(list); // Trim any trailing whitespace, to put the closing `` // up on the preceding line, to get it past the current stupid // HTML block parser. This is a hack to work around the terrible // hack that is the HTML block parser. result = result.replace(/\s+$/, ''); result = '<' + listType + '>' + result + '\n'; return result; }); } else { wholeList = /(\n\n|^\n?)(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/g; text = text.replace(wholeList, function (wholeMatch, m1, m2, m3) { // Turn double returns into triple returns, so that we can make a // paragraph for the last item in a list, if necessary: var list = m2.replace(/\n{2,}/g, '\n\n\n'), listType = (m3.search(/[*+-]/g) > -1) ? 'ul' : 'ol', result = processListItems(list); return m1 + '<' + listType + '>\n' + result + '\n'; }); } // attacklab: strip sentinel text = text.replace(/~0/, ''); return text; }); /** * Remove one level of line-leading tabs or spaces */ showdown.subParser('outdent', function (text) { 'use strict'; // attacklab: hack around Konqueror 3.5.4 bug: // "----------bug".replace(/^-/g,"") == "bug" text = text.replace(/^(\t|[ ]{1,4})/gm, '~0'); // attacklab: g_tab_width // attacklab: clean up hack text = text.replace(/~0/g, ''); return text; }); /** * Run language extensions */ showdown.subParser('outputModifiers', function (text, config, globals) { 'use strict'; showdown.helper.forEach(globals.outputModifiers, function (ext) { text = showdown.subParser('runExtension')(ext, text); }); return text; }); /** * */ showdown.subParser('paragraphs', function (text, options, globals) { 'use strict'; // Strip leading and trailing lines: text = text.replace(/^\n+/g, ''); text = text.replace(/\n+$/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(\d+)K/g) >= 0) { grafsOut.push(str); } 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++) { // if this is a marker for an html block... while (grafsOut[i].search(/~K(\d+)K/) >= 0) { var blockText = globals.gHtmlBlocks[RegExp.$1]; blockText = blockText.replace(/\$/g, '$$$$'); // Escape any dollar signs grafsOut[i] = grafsOut[i].replace(/~K\d+K/, blockText); } } return grafsOut.join('\n\n'); }); /** * Run language extensions */ showdown.subParser('runExtension', function (ext, text) { 'use strict'; if (ext.regex) { var re = new RegExp(ext.regex, 'g'); return text.replace(re, ext.replace); } else if (ext.filter) { return ext.filter(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 = 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 `` // Must come after _DoAnchors(), because you can use < and > // delimiters in inline links like [this](). text = showdown.subParser('autoLinks')(text, options, globals); text = showdown.subParser('encodeAmpsAndAngles')(text, options, globals); text = showdown.subParser('italicsAndBold')(text, options, globals); // Do hard breaks: text = text.replace(/ +\n/g, '
    \n'); return text; }); /** * 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+/ */ showdown.subParser('stripBlankLines', function (text) { 'use strict'; return text.replace(/^[ \t]+$/mg, ''); }); /** * Strips link definitions from text, stores the URLs and titles in * hash references. * Link defs are in the form: ^[id]: url "optional title" * * ^[ ]{0,3}\[(.+)\]: // id = $1 attacklab: g_tab_width - 1 * [ \t]* * \n? // maybe *one* newline * [ \t]* * ? // url = $2 * [ \t]* * \n? // maybe one newline * [ \t]* * (?: * (\n*) // any lines skipped = $3 attacklab: lookbehind removed * ["(] * (.+?) // title = $4 * [")] * [ \t]* * )? // title is optional * (?:\n+|$) * /gm, * function(){...}); * */ showdown.subParser('stripLinkDefinitions', function (text, options, globals) { 'use strict'; var regex = /^[ ]{0,3}\[(.+)]:[ \t]*\n?[ \t]*?[ \t]*\n?[ \t]*(?:(\n*)["(](.+?)[")][ \t]*)?(?:\n+|(?=~0))/gm; // attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug text += '~0'; text = text.replace(regex, function (wholeMatch, m1, m2, m3, m4) { m1 = m1.toLowerCase(); globals.gUrls[m1] = showdown.subParser('encodeAmpsAndAngles')(m2); // Link IDs are case-insensitive if (m3) { // Oops, found blank lines, so it's not a title. // Put back the parenthetical statement we stole. return m3 + m4; } else if (m4) { globals.gTitles[m1] = m4.replace(/"/g, '"'); } // Completely remove the definition from the text return ''; }); // attacklab: strip sentinel text = text.replace(/~0/, ''); return text; }); /** * Swap back in all the special characters we've hidden. */ showdown.subParser('unescapeSpecialChars', function (text) { 'use strict'; text = text.replace(/~E(\d+)E/g, function (wholeMatch, m1) { var charCodeToReplace = parseInt(m1); return String.fromCharCode(charCodeToReplace); }); return text; }); var root = this; // CommonJS/nodeJS Loader if (typeof module !== 'undefined' && module.exports) { module.exports = showdown; // AMD Loader } else if (typeof define === 'function' && define.amd) { define('showdown', function () { 'use strict'; return showdown; }); // Regular Browser loader } else { root.showdown = showdown; } }).call(this) //# sourceMappingURL=showdown.js.map