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