forum/skins/default/media/js/wmd/showdown.js

   1 //
   2 // showdown.js -- A javascript port of Markdown.
   3 //
   4 // Copyright (c) 2007 John Fraser.
   5 //
   6 // Original Markdown Copyright (c) 2004-2005 John Gruber
   7 //   <http://daringfireball.net/projects/markdown/>
   8 //
   9 // The full source distribution is at:
  10 //
  11 //                              A A L
  12 //                              T C A
  13 //                              T K B
  14 //
  15 //   <http://www.attacklab.net/>
  16 //
  17
  18 //
  19 // Wherever possible, Showdown is a straight, line-by-line port
  20 // of the Perl version of Markdown.
  21 //
  22 // This is not a normal parser design; it's basically just a
  23 // series of string substitutions.  It's hard to read and
  24 // maintain this way,  but keeping Showdown close to the original
  25 // design makes it easier to port new features.
  26 //
  27 // More importantly, Showdown behaves like markdown.pl in most
  28 // edge cases.  So web applications can do client-side preview
  29 // in Javascript, and then build identical HTML on the server.
  30 //
  31 // This port needs the new RegExp functionality of ECMA 262,
  32 // 3rd Edition (i.e. Javascript 1.5).  Most modern web browsers
  33 // should do fine.  Even with the new regular expression features,
  34 // We do a lot of work to emulate Perl's regex functionality.
  35 // The tricky changes in this file mostly have the "attacklab:"
  36 // label.  Major or self-explanatory changes don't.
  37 //
  38 // Smart diff tools like Araxis Merge will be able to match up
  39 // this file with markdown.pl in a useful way.  A little tweaking
  40 // helps: in a copy of markdown.pl, replace "#" with "//" and
  41 // replace "$text" with "text".  Be sure to ignore whitespace
  42 // and line endings.
  43 //
  44
  45
  46 //
  47 // Showdown usage:
  48 //
  49 //   var text = "Markdown *rocks*.";
  50 //
  51 //   var converter = new Attacklab.showdown.converter();
  52 //   var html = converter.makeHtml(text);
  53 //
  54 //   alert(html);
  55 //
  56 // Note: move the sample code to the bottom of this
  57 // file before uncommenting it.
  58 //
  59
  60
  61 //
  62 // Attacklab namespace
  63 //
  64 var Attacklab = Attacklab || {}
  65
  66 //
  67 // Showdown namespace
  68 //
  69 Attacklab.showdown = Attacklab.showdown || {}
  70
  71 //
  72 // converter
  73 //
  74 // Wraps all "globals" so that the only thing
  75 // exposed is makeHtml().
  76 //
  77 Attacklab.showdown.converter = function() {
  78
  79
  80 // g_urls and g_titles allow arbitrary user-entered strings as keys. This
  81 // caused an exception (and hence stopped the rendering) when the user entered
  82 // e.g. [push] or [__proto__]. Adding a prefix to the actual key prevents this
  83 // (since no builtin property starts with "s_"). See
  84 // http://meta.stackoverflow.com/questions/64655/strange-wmd-bug
  85 // (granted, switching from Array() to Object() alone would have left only __proto__
  86 // to be a problem)
  87 var SaveHash = function () {
  88     this.set = function (key, value) {
  89         this["s_" + key] = value;
  90     }
  91     this.get = function (key) {
  92         return this["s_" + key];
  93     }
  94 }
  95
  96 //
  97 // Globals:
  98 //
  99
 100 // Global hashes, used by various utility routines
 101 var g_urls;
 102 var g_titles;
 103 var g_html_blocks;
 104
 105 // Used to track when we're inside an ordered or unordered list
 106 // (see _ProcessListItems() for details):
 107 var g_list_level = 0;
 108
 109
 110 this.makeHtml = function(text) {
 111 //
 112 // Main function. The order in which other subs are called here is
 113 // essential. Link and image substitutions need to happen before
 114 // _EscapeSpecialCharsWithinTagAttributes(), so that any *'s or _'s in the <a>
 115 // and <img> tags get encoded.
 116 //
 117     text = html_sanitize(text, function(url) {return url;}, function(id) {return id;});
 118
 119         // Clear the global hashes. If we don't clear these, you get conflicts
 120         // from other articles when generating a page which contains more than
 121         // one article (e.g. an index page that shows the N most recent
 122         // articles):
 123     g_urls = new SaveHash();
 124     g_titles = new SaveHash();
 125         g_html_blocks = new Array();
 126
 127         // attacklab: Replace ~ with ~T
 128         // This lets us use tilde as an escape char to avoid md5 hashes
 129         // The choice of character is arbitray; anything that isn't
 130     // magic in Markdown will work.
 131         text = text.replace(/~/g,"~T");
 132
 133         // attacklab: Replace $ with ~D
 134         // RegExp interprets $ as a special character
 135         // when it's in a replacement string
 136         text = text.replace(/\$/g,"~D");
 137
 138         // Standardize line endings
 139         text = text.replace(/\r\n/g,"\n"); // DOS to Unix
 140         text = text.replace(/\r/g,"\n"); // Mac to Unix
 141
 142         // Make sure text begins and ends with a couple of newlines:
 143         text = "\n\n" + text + "\n\n";
 144
 145         // Convert all tabs to spaces.
 146         text = _Detab(text);
 147
 148         // Strip any lines consisting only of spaces and tabs.
 149         // This makes subsequent regexen easier to write, because we can
 150         // match consecutive blank lines with /\n+/ instead of something
 151         // contorted like /[ \t]*\n+/ .
 152         text = text.replace(/^[ \t]+$/mg,"");
 153
 154         // Turn block-level HTML blocks into hash entries
 155         text = _HashHTMLBlocks(text);
 156
 157         // Strip link definitions, store in hashes.
 158         text = _StripLinkDefinitions(text);
 159
 160         text = _RunBlockGamut(text);
 161
 162         text = _UnescapeSpecialChars(text);
 163
 164         // attacklab: Restore dollar signs
 165         text = text.replace(/~D/g,"$$");
 166
 167         // attacklab: Restore tildes
 168         text = text.replace(/~T/g,"~");
 169
 170         return text;
 171 }
 172
 173 var _StripLinkDefinitions = function(text) {
 174 //
 175 // Strips link definitions from text, stores the URLs and titles in
 176 // hash references.
 177 //
 178
 179         // Link defs are in the form: ^[id]: url "optional title"
 180
 181         /*
 182                 var text = text.replace(/
 183                                 ^[ ]{0,3}\[(.+)\]:  // id = $1  attacklab: g_tab_width - 1
 184                                   [ \t]*
 185                                   \n?                           // maybe *one* newline
 186                                   [ \t]*
 187                                 <?(\S+?)>?                      // url = $2
 188                 (?=\s|$)            // lookahead for whitespace instead of the lookbehind removed below
 189                                   [ \t]*
 190                                   \n?                           // maybe one newline
 191                                   [ \t]*
 192                                 (                   // (potential) title = $3
 193                                   (\n*)                         // any lines skipped = $4 attacklab: lookbehind removed
 194                   [ \t]+
 195                                   ["(]
 196                                   (.+?)                         // title = $5
 197                                   [")]
 198                                   [ \t]*
 199                                 )?                                      // title is optional
 200                                 (?:\n+|$)
 201                           /gm,
 202                           function(){...});
 203         */
 204         var text = text.replace(/^[ ]{0,3}\[(.+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?(?=\s|$)[ \t]*\n?[ \t]*((\n*)["(](.+?)[")][ \t]*)?(?:\n+)/gm,
 205                 function (wholeMatch,m1,m2,m3,m4,m5) {
 206                         m1 = m1.toLowerCase();
 207                         g_urls.set(m1, _EncodeAmpsAndAngles(m2));  // Link IDs are case-insensitive
 208                         if (m4) {
 209                                 // Oops, found blank lines, so it's not a title.
 210                                 // Put back the parenthetical statement we stole.
 211                                 return m3;
 212                         } else if (m5) {
 213                                 g_titles.set(m1, m5.replace(/"/g,"&quot;"));
 214                         }
 215
 216                         // Completely remove the definition from the text
 217                         return "";
 218                 }
 219         );
 220
 221         return text;
 222 }
 223
 224 var _HashHTMLBlocks = function(text) {
 225
 226         // Hashify HTML blocks:
 227         // We only want to do this for block-level HTML tags, such as headers,
 228         // lists, and tables. That's because we still want to wrap <p>s around
 229         // "paragraphs" that are wrapped in non-block-level tags, such as anchors,
 230         // phrase emphasis, and spans. The list of tags we're looking for is
 231         // hard-coded:
 232         var block_tags_a = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del"
 233         var block_tags_b = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math"
 234
 235         // First, look for nested blocks, e.g.:
 236         //   <div>
 237         //     <div>
 238         //     tags for inner block must be indented.
 239         //     </div>
 240         //   </div>
 241         //
 242         // The outermost tags must start at the left margin for this to match, and
 243         // the inner nested divs must be indented.
 244         // We need to do this before the next, more liberal match, because the next
 245         // match will start at the first `<div>` and stop at the first `</div>`.
 246
 247         // attacklab: This regex can be expensive when it fails.
 248         /*
 249                 var text = text.replace(/
 250                 (                                               // save in $1
 251                         ^                                       // start of line  (with /m)
 252                         <($block_tags_a)        // start tag = $2
 253                         \b                                      // word break
 254                                                                 // attacklab: hack around khtml/pcre bug...
 255                         [^\r]*?\n                       // any number of lines, minimally matching
 256                         </\2>                           // the matching end tag
 257                         [ \t]*                          // trailing spaces/tabs
 258                         (?=\n+)                         // followed by a newline
 259                 )                                               // attacklab: there are sentinel newlines at end of document
 260                 /gm,function(){...}};
 261         */
 262         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,hashElement);
 263
 264         //
 265         // Now match more liberally, simply from `\n<tag>` to `</tag>\n`
 266         //
 267
 268         /*
 269                 var text = text.replace(/
 270                 (                                               // save in $1
 271                         ^                                       // start of line  (with /m)
 272                         <($block_tags_b)        // start tag = $2
 273                         \b                                      // word break
 274                                                                 // attacklab: hack around khtml/pcre bug...
 275                         [^\r]*?                         // any number of lines, minimally matching
 276                         .*</\2>                         // the matching end tag
 277                         [ \t]*                          // trailing spaces/tabs
 278                         (?=\n+)                         // followed by a newline
 279                 )                                               // attacklab: there are sentinel newlines at end of document
 280                 /gm,function(){...}};
 281         */
 282         text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math)\b[^\r]*?.*<\/\2>[ \t]*(?=\n+)\n)/gm,hashElement);
 283
 284         // Special case just for <hr />. It was easier to make a special case than
 285         // to make the other regex more complicated.
 286
 287         /*
 288                 text = text.replace(/
 289                 \n                                  // Starting after a blank line
 290                 [ ]{0,3}
 291                 (                                               // save in $1
 292                         (<(hr)                          // start tag = $2
 293                         \b                                      // word break
 294                         ([^<>])*?                       //
 295                         \/?>)                           // the matching end tag
 296                         [ \t]*
 297                         (?=\n{2,})                      // followed by a blank line
 298                 )
 299                 /g,hashElement);
 300         */
 301         text = text.replace(/\n[ ]{0,3}((<(hr)\b([^<>])*?\/?>)[ \t]*(?=\n{2,}))/g,hashElement);
 302
 303         // Special case for standalone HTML comments:
 304
 305         /*
 306                 text = text.replace(/
 307                 \n\n                            // Starting after a blank line
 308                 [ ]{0,3}                        // attacklab: g_tab_width - 1
 309                 (                                               // save in $1
 310                         <!
 311                         (--(?:|(?:[^>-]|-[^>])(?:[^-]|-[^-])*)--)    // see http://www.w3.org/TR/html-markup/syntax.html#comments
 312                         >
 313                         [ \t]*
 314                         (?=\n{2,})                      // followed by a blank line
 315                 )
 316                 /g,hashElement);
 317         */
 318         text = text.replace(/\n\n[ ]{0,3}(<!(--(?:|(?:[^>-]|-[^>])(?:[^-]|-[^-])*)--)>[ \t]*(?=\n{2,}))/g, hashElement);
 319
 320         // PHP and ASP-style processor instructions (<?...?> and <%...%>)
 321
 322         /*
 323                 text = text.replace(/
 324                 (?:
 325                         \n\n                            // Starting after a blank line
 326                 )
 327                 (                                               // save in $1
 328                         [ ]{0,3}                        // attacklab: g_tab_width - 1
 329                         (?:
 330                                 <([?%])                 // $2
 331                                 [^\r]*?
 332                                 \2>
 333                         )
 334                         [ \t]*
 335                         (?=\n{2,})                      // followed by a blank line
 336                 )
 337                 /g,hashElement);
 338         */
 339         text = text.replace(/(?:\n\n)([ ]{0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g,hashElement);
 340
 341         return text;
 342 }
 343
 344 var hashElement = function(wholeMatch,m1) {
 345         var blockText = m1;
 346
 347         // Undo double lines
 348         blockText = blockText.replace(/^\n+/,"");
 349
 350         // strip trailing blank lines
 351         blockText = blockText.replace(/\n+$/g,"");
 352
 353         // Replace the element text with a marker ("~KxK" where x is its key)
 354         blockText = "\n\n~K" + (g_html_blocks.push(blockText)-1) + "K\n\n";
 355
 356         return blockText;
 357 };
 358
 359 var _RunBlockGamut = function(text, doNotUnhash) {
 360 //
 361 // These are all the transformations that form block-level
 362 // tags like paragraphs, headers, and list items.
 363 //
 364         text = _DoHeaders(text);
 365
 366         // Do Horizontal Rules:
 367         var key = hashBlock("<hr />");
 368         text = text.replace(/^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$/gm,key);
 369         text = text.replace(/^[ ]{0,2}([ ]?-[ ]?){3,}[ \t]*$/gm,key);
 370         text = text.replace(/^[ ]{0,2}([ ]?_[ ]?){3,}[ \t]*$/gm,key);
 371
 372         text = _DoLists(text);
 373         text = _DoCodeBlocks(text);
 374         text = _DoBlockQuotes(text);
 375
 376         // We already ran _HashHTMLBlocks() before, in Markdown(), but that
 377         // was to escape raw HTML in the original Markdown source. This time,
 378         // we're escaping the markup we've just created, so that we don't wrap
 379         // <p> tags around block-level tags.
 380         text = _HashHTMLBlocks(text);
 381     text = _FormParagraphs(text, doNotUnhash);
 382
 383         return text;
 384 }
 385
 386
 387 var _RunSpanGamut = function(text) {
 388 //
 389 // These are all the transformations that occur *within* block-level
 390 // tags like paragraphs, headers, and list items.
 391 //
 392
 393         text = _DoCodeSpans(text);
 394         text = _EscapeSpecialCharsWithinTagAttributes(text);
 395         text = _EncodeBackslashEscapes(text);
 396
 397         // Process anchor and image tags. Images must come first,
 398         // because ![foo][f] looks like an anchor.
 399         text = _DoImages(text);
 400         text = _DoAnchors(text);
 401
 402         // Make links out of things like `<http://example.com/>`
 403         // Must come after _DoAnchors(), because you can use < and >
 404         // delimiters in inline links like [this](<url>).
 405         text = _DoAutoLinks(text);
 406         text = _EncodeAmpsAndAngles(text);
 407         text = _DoItalicsAndBold(text);
 408
 409         // Do hard breaks:
 410         text = text.replace(/  +\n/g," <br />\n");
 411
 412         return text;
 413 }
 414
 415 var _EscapeSpecialCharsWithinTagAttributes = function(text) {
 416 //
 417 // Within tags -- meaning between < and > -- encode [\ ` * _] so they
 418 // don't conflict with their use in Markdown for code, italics and strong.
 419 //
 420
 421         // Build a regex to find HTML tags and comments.  See Friedl's
 422     // "Mastering Regular Expressions", 2nd Ed., pp. 200-201.
 423
 424     // SE: changed the comment part of the regex
 425
 426     var regex = /(<[a-z\/!$]("[^"]*"|'[^']*'|[^'">])*>|<!(--(?:|(?:[^>-]|-[^>])(?:[^-]|-[^-])*)--)>)/gi;
 427
 428         text = text.replace(regex, function(wholeMatch) {
 429                 var tag = wholeMatch.replace(/(.)<\/?code>(?=.)/g,"$1`");
 430                 tag = escapeCharacters(tag,"\\`*_");
 431                 return tag;
 432         });
 433
 434         return text;
 435 }
 436
 437 var _DoAnchors = function(text) {
 438 //
 439 // Turn Markdown link shortcuts into XHTML <a> tags.
 440 //
 441         //
 442         // First, handle reference-style links: [link text] [id]
 443         //
 444
 445         /*
 446                 text = text.replace(/
 447                 (                                                       // wrap whole match in $1
 448                         \[
 449                         (
 450                                 (?:
 451                                         \[[^\]]*\]              // allow brackets nested one level
 452                                         |
 453                                         [^\[]                   // or anything else
 454                                 )*
 455                         )
 456                         \]
 457
 458                         [ ]?                                    // one optional space
 459                         (?:\n[ ]*)?                             // one optional newline followed by spaces
 460
 461                         \[
 462                         (.*?)                                   // id = $3
 463                         \]
 464                 )()()()()                                       // pad remaining backreferences
 465                 /g,_DoAnchors_callback);
 466         */
 467         text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g,writeAnchorTag);
 468
 469         //
 470         // Next, inline-style links: [link text](url "optional title")
 471         //
 472
 473         /*
 474                 text = text.replace(/
 475                 (                                               // wrap whole match in $1
 476                         \[
 477                                 (
 478                                         (?:
 479                                                 \[[^\]]*\]      // allow brackets nested one level
 480                                             |
 481                                             [^\[\]]             // or anything else
 482                                     )*
 483                             )
 484                         \]
 485                         \(                                              // literal paren
 486                         [ \t]*
 487                         ()                                              // no id, so leave $3 empty
 488                         <?(                     // href = $4
 489                 (?:
 490                     \([^)]*\)       // allow one level of (correctly nested) parens (think MSDN)
 491                     |
 492                     [^()]
 493                 )*?
 494             )>?
 495                         [ \t]*
 496                         (                                               // $5
 497                                 (['"])                          // quote char = $6
 498                                 (.*?)                           // Title = $7
 499                                 \6                                      // matching quote
 500                                 [ \t]*                          // ignore any spaces/tabs between closing quote and )
 501                         )?                                              // title is optional
 502                         \)
 503                 )
 504                 /g,writeAnchorTag);
 505         */
 506
 507         text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\]\([ \t]*()<?((?:\([^)]*\)|[^()])*?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g,writeAnchorTag);
 508
 509         //
 510         // Last, handle reference-style shortcuts: [link text]
 511         // These must come last in case you've also got [link test][1]
 512         // or [link test](/foo)
 513         //
 514
 515         /*
 516                 text = text.replace(/
 517                 (                                                       // wrap whole match in $1
 518                         \[
 519                         ([^\[\]]+)                              // link text = $2; can't contain '[' or ']'
 520                         \]
 521                 )()()()()()                                     // pad rest of backreferences
 522                 /g, writeAnchorTag);
 523         */
 524         text = text.replace(/(\[([^\[\]]+)\])()()()()()/g, writeAnchorTag);
 525
 526         return text;
 527 }
 528
 529 var writeAnchorTag = function(wholeMatch,m1,m2,m3,m4,m5,m6,m7) {
 530         if (m7 == undefined) m7 = "";
 531         var whole_match = m1;
 532         var link_text   = m2;
 533         var link_id      = m3.toLowerCase();
 534         var url         = m4;
 535         var title       = m7;
 536
 537         if (url == "") {
 538                 if (link_id == "") {
 539                         // lower-case and turn embedded newlines into spaces
 540                         link_id = link_text.toLowerCase().replace(/ ?\n/g," ");
 541                 }
 542                 url = "#"+link_id;
 543
 544                 if (g_urls.get(link_id) != undefined) {
 545                         url = g_urls.get(link_id);
 546                         if (g_titles.get(link_id) != undefined) {
 547                                 title = g_titles.get(link_id);
 548                         }
 549                 }
 550                 else {
 551                         if (whole_match.search(/\(\s*\)$/m)>-1) {
 552                                 // Special case for explicit empty url
 553                                 url = "";
 554                         } else {
 555                                 return whole_match;
 556                         }
 557                 }
 558         }
 559
 560         url = escapeCharacters(url,"*_");
 561         var result = "<a href=\"" + url + "\"";
 562
 563         if (title != "") {
 564                 title = title.replace(/"/g,"&quot;");
 565                 title = escapeCharacters(title,"*_");
 566                 result +=  " title=\"" + title + "\"";
 567         }
 568
 569         result += ">" + link_text + "</a>";
 570
 571         return result;
 572 }
 573
 574
 575 var _DoImages = function(text) {
 576 //
 577 // Turn Markdown image shortcuts into <img> tags.
 578 //
 579
 580         //
 581         // First, handle reference-style labeled images: ![alt text][id]
 582         //
 583
 584         /*
 585                 text = text.replace(/
 586                 (                                               // wrap whole match in $1
 587                         !\[
 588                         (.*?)                           // alt text = $2
 589                         \]
 590
 591                         [ ]?                            // one optional space
 592                         (?:\n[ ]*)?                     // one optional newline followed by spaces
 593
 594                         \[
 595                         (.*?)                           // id = $3
 596                         \]
 597                 )()()()()                               // pad rest of backreferences
 598                 /g,writeImageTag);
 599         */
 600         text = text.replace(/(!\[(.*?)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g,writeImageTag);
 601
 602         //
 603         // Next, handle inline images:  ![alt text](url "optional title")
 604         // Don't forget: encode * and _
 605
 606         /*
 607                 text = text.replace(/
 608                 (                                               // wrap whole match in $1
 609                         !\[
 610                         (.*?)                           // alt text = $2
 611                         \]
 612                         \s?                                     // One optional whitespace character
 613                         \(                                      // literal paren
 614                         [ \t]*
 615                         ()                                      // no id, so leave $3 empty
 616                         <?(\S+?)>?                      // src url = $4
 617                         [ \t]*
 618                         (                                       // $5
 619                                 (['"])                  // quote char = $6
 620                                 (.*?)                   // title = $7
 621                                 \6                              // matching quote
 622                                 [ \t]*
 623                         )?                                      // title is optional
 624                 \)
 625                 )
 626                 /g,writeImageTag);
 627         */
 628         text = text.replace(/(!\[(.*?)\]\s?\([ \t]*()<?(\S+?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g,writeImageTag);
 629
 630         return text;
 631 }
 632
 633 var writeImageTag = function(wholeMatch,m1,m2,m3,m4,m5,m6,m7) {
 634         var whole_match = m1;
 635         var alt_text   = m2;
 636         var link_id      = m3.toLowerCase();
 637         var url         = m4;
 638         var title       = m7;
 639
 640         if (!title) title = "";
 641
 642         if (url == "") {
 643                 if (link_id == "") {
 644                         // lower-case and turn embedded newlines into spaces
 645                         link_id = alt_text.toLowerCase().replace(/ ?\n/g," ");
 646                 }
 647                 url = "#"+link_id;
 648
 649                 if (g_urls.get(link_id) != undefined) {
 650                         url = g_urls.get(link_id);
 651                         if (g_titles.get(link_id) != undefined) {
 652                                 title = g_titles.get(link_id);
 653                         }
 654                 }
 655                 else {
 656                         return whole_match;
 657                 }
 658         }
 659
 660         alt_text = alt_text.replace(/"/g,"&quot;");
 661         url = escapeCharacters(url,"*_");
 662         var result = "<img src=\"" + url + "\" alt=\"" + alt_text + "\"";
 663
 664         // attacklab: Markdown.pl adds empty title attributes to images.
 665         // Replicate this bug.
 666
 667         //if (title != "") {
 668                 title = title.replace(/"/g,"&quot;");
 669                 title = escapeCharacters(title,"*_");
 670                 result +=  " title=\"" + title + "\"";
 671         //}
 672
 673         result += " />";
 674
 675         return result;
 676 }
 677
 678
 679 var _DoHeaders = function(text) {
 680
 681         // Setext-style headers:
 682         //      Header 1
 683         //      ========
 684         //
 685         //      Header 2
 686         //      --------
 687         //
 688         text = text.replace(/^(.+)[ \t]*\n=+[ \t]*\n+/gm,
 689                 function(wholeMatch,m1){return "<h1>" + _RunSpanGamut(m1) + "</h1>\n\n";});
 690
 691         text = text.replace(/^(.+)[ \t]*\n-+[ \t]*\n+/gm,
 692                 function(matchFound,m1){return "<h2>" + _RunSpanGamut(m1) + "</h2>\n\n";});
 693
 694         // atx-style headers:
 695         //  # Header 1
 696         //  ## Header 2
 697         //  ## Header 2 with closing hashes ##
 698         //  ...
 699         //  ###### Header 6
 700         //
 701
 702         /*
 703                 text = text.replace(/
 704                         ^(\#{1,6})                              // $1 = string of #'s
 705                         [ \t]*
 706                         (.+?)                                   // $2 = Header text
 707                         [ \t]*
 708                         \#*                                             // optional closing #'s (not counted)
 709                         \n+
 710                 /gm, function() {...});
 711         */
 712
 713         text = text.replace(/^(\#{1,6})[ \t]*(.+?)[ \t]*\#*\n+/gm,
 714                 function(wholeMatch,m1,m2) {
 715                         var h_level = m1.length;
 716                         return "<h" + h_level + ">" + _RunSpanGamut(m2) + "</h" + h_level + ">\n\n";
 717                 });
 718
 719         return text;
 720 }
 721
 722 // This declaration keeps Dojo compressor from outputting garbage:
 723 var _ProcessListItems;
 724
 725 var _DoLists = function(text) {
 726 //
 727 // Form HTML ordered (numbered) and unordered (bulleted) lists.
 728 //
 729
 730         // attacklab: add sentinel to hack around khtml/safari bug:
 731         // http://bugs.webkit.org/show_bug.cgi?id=11231
 732         text += "~0";
 733
 734         // Re-usable pattern to match any entirel ul or ol list:
 735
 736         /*
 737                 var whole_list = /
 738                 (                                                                       // $1 = whole list
 739                         (                                                               // $2
 740                                 [ ]{0,3}                                        // attacklab: g_tab_width - 1
 741                                 ([*+-]|\d+[.])                          // $3 = first list item marker
 742                                 [ \t]+
 743                         )
 744                         [^\r]+?
 745                         (                                                               // $4
 746                                 ~0                                                      // sentinel for workaround; should be $
 747                         |
 748                                 \n{2,}
 749                                 (?=\S)
 750                                 (?!                                                     // Negative lookahead for another list item marker
 751                                         [ \t]*
 752                                         (?:[*+-]|\d+[.])[ \t]+
 753                                 )
 754                         )
 755                 )/g
 756         */
 757         var whole_list = /^(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm;
 758
 759         if (g_list_level) {
 760                 text = text.replace(whole_list,function(wholeMatch,m1,m2) {
 761                         var list = m1;
 762                         var list_type = (m2.search(/[*+-]/g)>-1) ? "ul" : "ol";
 763
 764                         var result = _ProcessListItems(list, list_type);
 765
 766                         // Trim any trailing whitespace, to put the closing `</$list_type>`
 767                         // up on the preceding line, to get it past the current stupid
 768                         // HTML block parser. This is a hack to work around the terrible
 769                         // hack that is the HTML block parser.
 770                         result = result.replace(/\s+$/,"");
 771                         result = "<"+list_type+">" + result + "</"+list_type+">\n";
 772                         return result;
 773                 });
 774         } else {
 775                 whole_list = /(\n\n|^\n?)(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/g;
 776                 text = text.replace(whole_list,function(wholeMatch,m1,m2,m3) {
 777                         var runup = m1;
 778                         var list = m2;
 779
 780                         var list_type = (m3.search(/[*+-]/g)>-1) ? "ul" : "ol";
 781                         var result = _ProcessListItems(list, list_type);
 782                         result = runup + "<"+list_type+">\n" + result + "</"+list_type+">\n";
 783                         return result;
 784                 });
 785         }
 786
 787         // attacklab: strip sentinel
 788         text = text.replace(/~0/,"");
 789
 790         return text;
 791 }
 792
 793 var _listItemMarkers = { ol: "\\d+[.]", ul: "[*+-]" };
 794
 795 _ProcessListItems = function(list_str, list_type) {
 796 //
 797 //  Process the contents of a single ordered or unordered list, splitting it
 798 //  into individual list items.
 799 //
 800 //  list_type is either "ul" or "ol".
 801
 802         // The $g_list_level global keeps track of when we're inside a list.
 803         // Each time we enter a list, we increment it; when we leave a list,
 804         // we decrement. If it's zero, we're not in a list anymore.
 805         //
 806         // We do this because when we're not inside a list, we want to treat
 807         // something like this:
 808         //
 809         //    I recommend upgrading to version
 810         //    8. Oops, now this line is treated
 811         //    as a sub-list.
 812         //
 813         // As a single paragraph, despite the fact that the second line starts
 814         // with a digit-period-space sequence.
 815         //
 816         // Whereas when we're inside a list (or sub-list), that line will be
 817         // treated as the start of a sub-list. What a kludge, huh? This is
 818         // an aspect of Markdown's syntax that's hard to parse perfectly
 819         // without resorting to mind-reading. Perhaps the solution is to
 820         // change the syntax rules such that sub-lists must start with a
 821         // starting cardinal number; e.g. "1." or "a.".
 822
 823         g_list_level++;
 824
 825         // trim trailing blank lines:
 826         list_str = list_str.replace(/\n{2,}$/,"\n");
 827
 828         // attacklab: add sentinel to emulate \z
 829         list_str += "~0";
 830
 831         // In the original attacklab WMD, list_type was not given to this function, and anything
 832         // that matched /[*+-]|\d+[.]/ would just create the next <li>, causing this mismatch:
 833         //
 834     //  Markdown          rendered by WMD        rendered by MarkdownSharp
 835         //  ------------------------------------------------------------------
 836         //  1. first          1. first               1. first
 837         //  2. second         2. second              2. second
 838         //  - third           3. third                   * third
 839         //
 840         // We changed this to behave identical to MarkdownSharp. This is the constructed RegEx,
 841     // with {MARKER} being one of \d+[.] or [*+-], depending on list_type:
 842         /*
 843                 list_str = list_str.replace(/
 844                         (^[ \t]*)                                               // leading whitespace = $1
 845                         ({MARKER}) [ \t]+                       // list marker = $2
 846                         ([^\r]+?                                                // list item text   = $3
 847                         (\n+))
 848                         (?= (~0 | \2 ({MARKER}) [ \t]+))
 849                 /gm, function(){...});
 850         */
 851
 852     var marker = _listItemMarkers[list_type];
 853     var re = new RegExp("(^[ \\t]*)(" + marker + ")[ \\t]+([^\\r]+?(\\n+))(?=(~0|\\1(" + marker + ")[ \\t]+))", "gm");
 854     var last_item_had_a_double_newline = false;
 855         list_str = list_str.replace(re,
 856                 function(wholeMatch,m1,m2,m3){
 857                         var item = m3;
 858                         var leading_space = m1;
 859             var ends_with_double_newline = /\n\n$/.test(item);
 860                         var contains_double_newline = ends_with_double_newline || item.search(/\n{2,}/)>-1;
 861
 862                         if (contains_double_newline || last_item_had_a_double_newline) {
 863                                 item =  _RunBlockGamut(_Outdent(item), /* doNotUnhash = */ true);
 864                         }
 865                         else {
 866                                 // Recursion for sub-lists:
 867                                 item = _DoLists(_Outdent(item));
 868                                 item = item.replace(/\n$/,""); // chomp(item)
 869                                 item = _RunSpanGamut(item);
 870             }
 871             last_item_had_a_double_newline = ends_with_double_newline;
 872                         return  "<li>" + item + "</li>\n";
 873                 }
 874         );
 875
 876         // attacklab: strip sentinel
 877         list_str = list_str.replace(/~0/g,"");
 878
 879         g_list_level--;
 880         return list_str;
 881 }
 882
 883
 884 var _DoCodeBlocks = function(text) {
 885 //
 886 //  Process Markdown `<pre><code>` blocks.
 887 //
 888
 889         /*
 890                 text = text.replace(text,
 891                         /(?:\n\n|^)
 892                         (                                                               // $1 = the code block -- one or more lines, starting with a space/tab
 893                                 (?:
 894                                         (?:[ ]{4}|\t)                   // Lines must start with a tab or a tab-width of spaces - attacklab: g_tab_width
 895                                         .*\n+
 896                                 )+
 897                         )
 898                         (\n*[ ]{0,3}[^ \t\n]|(?=~0))    // attacklab: g_tab_width
 899                 /g,function(){...});
 900         */
 901
 902         // attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug
 903         text += "~0";
 904
 905         text = text.replace(/(?:\n\n|^)((?:(?:[ ]{4}|\t).*\n+)+)(\n*[ ]{0,3}[^ \t\n]|(?=~0))/g,
 906                 function(wholeMatch,m1,m2) {
 907                         var codeblock = m1;
 908                         var nextChar = m2;
 909
 910                         codeblock = _EncodeCode( _Outdent(codeblock));
 911                         codeblock = _Detab(codeblock);
 912                         codeblock = codeblock.replace(/^\n+/g,""); // trim leading newlines
 913                         codeblock = codeblock.replace(/\n+$/g,""); // trim trailing whitespace
 914
 915                         codeblock = "<pre><code>" + codeblock + "\n</code></pre>";
 916
 917                         return "\n\n" + codeblock + "\n\n" + nextChar;
 918                 }
 919         );
 920
 921         // attacklab: strip sentinel
 922         text = text.replace(/~0/,"");
 923
 924         return text;
 925 }
 926
 927 var hashBlock = function(text) {
 928         text = text.replace(/(^\n+|\n+$)/g,"");
 929         return "\n\n~K" + (g_html_blocks.push(text)-1) + "K\n\n";
 930 }
 931
 932
 933 var _DoCodeSpans = function(text) {
 934 //
 935 //   *  Backtick quotes are used for <code></code> spans.
 936 //
 937 //   *  You can use multiple backticks as the delimiters if you want to
 938 //       include literal backticks in the code span. So, this input:
 939 //
 940 //               Just type ``foo `bar` baz`` at the prompt.
 941 //
 942 //         Will translate to:
 943 //
 944 //               <p>Just type <code>foo `bar` baz</code> at the prompt.</p>
 945 //
 946 //      There's no arbitrary limit to the number of backticks you
 947 //      can use as delimters. If you need three consecutive backticks
 948 //      in your code, use four for delimiters, etc.
 949 //
 950 //  *  You can use spaces to get literal backticks at the edges:
 951 //
 952 //               ... type `` `bar` `` ...
 953 //
 954 //         Turns to:
 955 //
 956 //               ... type <code>`bar`</code> ...
 957 //
 958
 959         /*
 960                 text = text.replace(/
 961                         (^|[^\\])                                       // Character before opening ` can't be a backslash
 962                         (`+)                                            // $2 = Opening run of `
 963                         (                                                       // $3 = The code block
 964                                 [^\r]*?
 965                                 [^`]                                    // attacklab: work around lack of lookbehind
 966                         )
 967                         \2                                                      // Matching closer
 968                         (?!`)
 969                 /gm, function(){...});
 970         */
 971
 972         text = text.replace(/(^|[^\\])(`+)([^\r]*?[^`])\2(?!`)/gm,
 973                 function(wholeMatch,m1,m2,m3,m4) {
 974                         var c = m3;
 975                         c = c.replace(/^([ \t]*)/g,""); // leading whitespace
 976                         c = c.replace(/[ \t]*$/g,"");   // trailing whitespace
 977                         c = _EncodeCode(c);
 978                         return m1+"<code>"+c+"</code>";
 979                 });
 980
 981         return text;
 982 }
 983
 984
 985 var _EncodeCode = function(text) {
 986 //
 987 // Encode/escape certain characters inside Markdown code runs.
 988 // The point is that in code, these characters are literals,
 989 // and lose their special Markdown meanings.
 990 //
 991         // Encode all ampersands; HTML entities are not
 992         // entities within a Markdown code span.
 993         text = text.replace(/&/g,"&amp;");
 994
 995         // Do the angle bracket song and dance:
 996         text = text.replace(/</g,"&lt;");
 997         text = text.replace(/>/g,"&gt;");
 998
 999         // Now, escape characters that are magic in Markdown:
1000         text = escapeCharacters(text,"\*_{}[]\\",false);
1001
1002 // jj the line above breaks this:
1003 //---
1004
1005 //* Item
1006
1007 //   1. Subitem
1008
1009 //            special char: *
1010 //---
1011
1012         return text;
1013 }
1014
1015
1016 var _DoItalicsAndBold = function(text) {
1017
1018         // <strong> must go first:
1019         text = text.replace(/(\*\*|__)(?=\S)([^\r]*?\S[\*_]*)\1/g,
1020                 "<strong>$2</strong>");
1021
1022         text = text.replace(/(\*|_)(?=\S)([^\r]*?\S)\1/g,
1023                 "<em>$2</em>");
1024
1025         return text;
1026 }
1027
1028
1029 var _DoBlockQuotes = function(text) {
1030
1031         /*
1032                 text = text.replace(/
1033                 (                                                               // Wrap whole match in $1
1034                         (
1035                                 ^[ \t]*>[ \t]?                  // '>' at the start of a line
1036                                 .+\n                                    // rest of the first line
1037                                 (.+\n)*                                 // subsequent consecutive lines
1038                                 \n*                                             // blanks
1039                         )+
1040                 )
1041                 /gm, function(){...});
1042         */
1043
1044         text = text.replace(/((^[ \t]*>[ \t]?.+\n(.+\n)*\n*)+)/gm,
1045                 function(wholeMatch,m1) {
1046                         var bq = m1;
1047
1048                         // attacklab: hack around Konqueror 3.5.4 bug:
1049                         // "----------bug".replace(/^-/g,"") == "bug"
1050
1051                         bq = bq.replace(/^[ \t]*>[ \t]?/gm,"~0");       // trim one level of quoting
1052
1053                         // attacklab: clean up hack
1054                         bq = bq.replace(/~0/g,"");
1055
1056                         bq = bq.replace(/^[ \t]+$/gm,"");               // trim whitespace-only lines
1057                         bq = _RunBlockGamut(bq);                                // recurse
1058
1059                         bq = bq.replace(/(^|\n)/g,"$1  ");
1060                         // These leading spaces screw with <pre> content, so we need to fix that:
1061                         bq = bq.replace(
1062                                         /(\s*<pre>[^\r]+?<\/pre>)/gm,
1063                                 function(wholeMatch,m1) {
1064                                         var pre = m1;
1065                                         // attacklab: hack around Konqueror 3.5.4 bug:
1066                                         pre = pre.replace(/^  /mg,"~0");
1067                                         pre = pre.replace(/~0/g,"");
1068                                         return pre;
1069                                 });
1070
1071                         return hashBlock("<blockquote>\n" + bq + "\n</blockquote>");
1072                 });
1073         return text;
1074 }
1075
1076
1077 var _FormParagraphs = function(text, doNotUnhash) {
1078 //
1079 //  Params:
1080 //    $text - string to process with html <p> tags
1081 //
1082
1083         // Strip leading and trailing lines:
1084         text = text.replace(/^\n+/g,"");
1085         text = text.replace(/\n+$/g,"");
1086
1087         var grafs = text.split(/\n{2,}/g);
1088         var grafsOut = new Array();
1089
1090         //
1091         // Wrap <p> tags.
1092         //
1093         var end = grafs.length;
1094         for (var i=0; i<end; i++) {
1095                 var str = grafs[i];
1096
1097                 // if this is an HTML marker, copy it
1098                 if (str.search(/~K(\d+)K/g) >= 0) {
1099                         grafsOut.push(str);
1100                 }
1101                 else if (str.search(/\S/) >= 0) {
1102                         str = _RunSpanGamut(str);
1103                         str = str.replace(/^([ \t]*)/g,"<p>");
1104                         str += "</p>"
1105                         grafsOut.push(str);
1106                 }
1107
1108         }
1109         //
1110         // Unhashify HTML blocks
1111         //
1112     if (!doNotUnhash) {
1113         end = grafsOut.length;
1114             for (var i=0; i<end; i++) {
1115                     // if this is a marker for an html block...
1116                     while (grafsOut[i].search(/~K(\d+)K/) >= 0) {
1117                             var blockText = g_html_blocks[RegExp.$1];
1118                             blockText = blockText.replace(/\$/g,"$$$$"); // Escape any dollar signs
1119                             grafsOut[i] = grafsOut[i].replace(/~K\d+K/,blockText);
1120                     }
1121             }
1122     }
1123         return grafsOut.join("\n\n");
1124 }
1125
1126
1127 var _EncodeAmpsAndAngles = function(text) {
1128 // Smart processing for ampersands and angle brackets that need to be encoded.
1129
1130         // Ampersand-encoding based entirely on Nat Irons's Amputator MT plugin:
1131         //   http://bumppo.net/projects/amputator/
1132         text = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g,"&amp;");
1133
1134         // Encode naked <'s
1135         text = text.replace(/<(?![a-z\/?\$!])/gi,"&lt;");
1136
1137         return text;
1138 }
1139
1140
1141 var _EncodeBackslashEscapes = function(text) {
1142 //
1143 //   Parameter:  String.
1144 //   Returns:   The string, with after processing the following backslash
1145 //                         escape sequences.
1146 //
1147
1148         // attacklab: The polite way to do this is with the new
1149         // escapeCharacters() function:
1150         //
1151         //      text = escapeCharacters(text,"\\",true);
1152         //      text = escapeCharacters(text,"`*_{}[]()>#+-.!",true);
1153         //
1154         // ...but we're sidestepping its use of the (slow) RegExp constructor
1155         // as an optimization for Firefox.  This function gets called a LOT.
1156
1157         text = text.replace(/\\(\\)/g,escapeCharacters_callback);
1158         text = text.replace(/\\([`*_{}\[\]()>#+-.!])/g,escapeCharacters_callback);
1159         return text;
1160 }
1161
1162
1163 var _DoAutoLinks = function(text) {
1164
1165         text = text.replace(/<((https?|ftp|dict):[^'">\s]+)>/gi,"<a href=\"$1\">$1</a>");
1166
1167         // Email addresses: <address@domain.foo>
1168
1169         /*
1170                 text = text.replace(/
1171                         <
1172                         (?:mailto:)?
1173                         (
1174                                 [-.\w]+
1175                                 \@
1176                                 [-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
1177                         )
1178                         >
1179                 /gi, _DoAutoLinks_callback());
1180         */
1181         text = text.replace(/<(?:mailto:)?([-.\w]+\@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi,
1182                 function(wholeMatch,m1) {
1183                         return _EncodeEmailAddress( _UnescapeSpecialChars(m1) );
1184                 }
1185         );
1186
1187         return text;
1188 }
1189
1190
1191 var _EncodeEmailAddress = function(addr) {
1192 //
1193 //  Input: an email address, e.g. "foo@example.com"
1194 //
1195 //  Output: the email address as a mailto link, with each character
1196 //      of the address encoded as either a decimal or hex entity, in
1197 //      the hopes of foiling most address harvesting spam bots. E.g.:
1198 //
1199 //      <a href="&#x6D;&#97;&#105;&#108;&#x74;&#111;:&#102;&#111;&#111;&#64;&#101;
1200 //         x&#x61;&#109;&#x70;&#108;&#x65;&#x2E;&#99;&#111;&#109;">&#102;&#111;&#111;
1201 //         &#64;&#101;x&#x61;&#109;&#x70;&#108;&#x65;&#x2E;&#99;&#111;&#109;</a>
1202 //
1203 //  Based on a filter by Matthew Wickline, posted to the BBEdit-Talk
1204 //  mailing list: <http://tinyurl.com/yu7ue>
1205 //
1206
1207         // attacklab: why can't javascript speak hex?
1208         function char2hex(ch) {
1209                 var hexDigits = '0123456789ABCDEF';
1210                 var dec = ch.charCodeAt(0);
1211                 return(hexDigits.charAt(dec>>4) + hexDigits.charAt(dec&15));
1212         }
1213
1214         var encode = [
1215                 function(ch){return "&#"+ch.charCodeAt(0)+";";},
1216                 function(ch){return "&#x"+char2hex(ch)+";";},
1217                 function(ch){return ch;}
1218         ];
1219
1220         addr = "mailto:" + addr;
1221
1222         addr = addr.replace(/./g, function(ch) {
1223                 if (ch == "@") {
1224                         // this *must* be encoded. I insist.
1225                         ch = encode[Math.floor(Math.random()*2)](ch);
1226                 } else if (ch !=":") {
1227                         // leave ':' alone (to spot mailto: later)
1228                         var r = Math.random();
1229                         // roughly 10% raw, 45% hex, 45% dec
1230                         ch =  (
1231                                         r > .9  ?       encode[2](ch)   :
1232                                         r > .45 ?       encode[1](ch)   :
1233                                                                 encode[0](ch)
1234                                 );
1235                 }
1236                 return ch;
1237         });
1238
1239         addr = "<a href=\"" + addr + "\">" + addr + "</a>";
1240         addr = addr.replace(/">.+:/g,"\">"); // strip the mailto: from the visible part
1241
1242         return addr;
1243 }
1244
1245
1246 var _UnescapeSpecialChars = function(text) {
1247 //
1248 // Swap back in all the special characters we've hidden.
1249 //
1250         text = text.replace(/~E(\d+)E/g,
1251                 function(wholeMatch,m1) {
1252                         var charCodeToReplace = parseInt(m1);
1253                         return String.fromCharCode(charCodeToReplace);
1254                 }
1255         );
1256         return text;
1257 }
1258
1259
1260 var _Outdent = function(text) {
1261 //
1262 // Remove one level of line-leading tabs or spaces
1263 //
1264
1265         // attacklab: hack around Konqueror 3.5.4 bug:
1266         // "----------bug".replace(/^-/g,"") == "bug"
1267
1268         text = text.replace(/^(\t|[ ]{1,4})/gm,"~0"); // attacklab: g_tab_width
1269
1270         // attacklab: clean up hack
1271         text = text.replace(/~0/g,"")
1272
1273         return text;
1274 }
1275
1276 var _Detab = function (text) {
1277         if (!/\t/.test(text))
1278                 return text;
1279
1280         var spaces = ["    ", "   ", "  ", " "],
1281                 skew = 0,
1282                 v;
1283
1284         return text.replace(/[\n\t]/g, function (match, offset) {
1285                 if (match === "\n") {
1286                         skew = offset + 1;
1287                         return match;
1288                 }
1289                 v = (offset - skew) % 4;
1290                 skew = offset + 1;
1291                 return spaces[v];
1292         });
1293 }
1294
1295 //
1296 //  attacklab: Utility functions
1297 //
1298
1299
1300 var escapeCharacters = function(text, charsToEscape, afterBackslash) {
1301         // First we have to escape the escape characters so that
1302         // we can build a character class out of them
1303         var regexString = "([" + charsToEscape.replace(/([\[\]\\])/g,"\\$1") + "])";
1304
1305         if (afterBackslash) {
1306                 regexString = "\\\\" + regexString;
1307         }
1308
1309         var regex = new RegExp(regexString,"g");
1310         text = text.replace(regex,escapeCharacters_callback);
1311
1312         return text;
1313 }
1314
1315
1316 var escapeCharacters_callback = function(wholeMatch,m1) {
1317         var charCodeToEscape = m1.charCodeAt(0);
1318         return "~E"+charCodeToEscape+"E";
1319 }
1320
1321 } // end of Attacklab.showdown.converter
1322
1323
1324 // Version 0.9 used the Showdown namespace instead of Attacklab.showdown
1325 // The old namespace is deprecated, but we'll support it for now:
1326 var Showdown = Attacklab.showdown;
1327
1328 // If anyone's interested, tell the world that this file's been loaded
1329 if (Attacklab.fileLoaded) {
1330         Attacklab.fileLoaded("showdown.js");
1331 }