|
|
@@ -0,0 +1,1296 @@
|
|
|
+//
|
|
|
+// showdown.js -- A javascript port of Markdown.
|
|
|
+//
|
|
|
+// Copyright (c) 2007 John Fraser.
|
|
|
+//
|
|
|
+// Original Markdown Copyright (c) 2004-2005 John Gruber
|
|
|
+// <http://daringfireball.net/projects/markdown/>
|
|
|
+//
|
|
|
+// Redistributable under a BSD-style open source license.
|
|
|
+// See license.txt for more information.
|
|
|
+//
|
|
|
+// The full source distribution is at:
|
|
|
+//
|
|
|
+// A A L
|
|
|
+// T C A
|
|
|
+// T K B
|
|
|
+//
|
|
|
+// <http://www.attacklab.net/>
|
|
|
+//
|
|
|
+
|
|
|
+//
|
|
|
+// Wherever possible, Showdown is a straight, line-by-line port
|
|
|
+// of the Perl version of Markdown.
|
|
|
+//
|
|
|
+// This is not a normal parser design; it's basically just a
|
|
|
+// series of string substitutions. It's hard to read and
|
|
|
+// maintain this way, but keeping Showdown close to the original
|
|
|
+// design makes it easier to port new features.
|
|
|
+//
|
|
|
+// More importantly, Showdown behaves like markdown.pl in most
|
|
|
+// edge cases. So web applications can do client-side preview
|
|
|
+// in Javascript, and then build identical HTML on the server.
|
|
|
+//
|
|
|
+// This port needs the new RegExp functionality of ECMA 262,
|
|
|
+// 3rd Edition (i.e. Javascript 1.5). Most modern web browsers
|
|
|
+// should do fine. Even with the new regular expression features,
|
|
|
+// We do a lot of work to emulate Perl's regex functionality.
|
|
|
+// The tricky changes in this file mostly have the "attacklab:"
|
|
|
+// label. Major or self-explanatory changes don't.
|
|
|
+//
|
|
|
+// Smart diff tools like Araxis Merge will be able to match up
|
|
|
+// this file with markdown.pl in a useful way. A little tweaking
|
|
|
+// helps: in a copy of markdown.pl, replace "#" with "//" and
|
|
|
+// replace "$text" with "text". Be sure to ignore whitespace
|
|
|
+// and line endings.
|
|
|
+//
|
|
|
+
|
|
|
+
|
|
|
+//
|
|
|
+// Showdown usage:
|
|
|
+//
|
|
|
+// var text = "Markdown *rocks*.";
|
|
|
+//
|
|
|
+// var converter = new Showdown.converter();
|
|
|
+// var html = converter.makeHtml(text);
|
|
|
+//
|
|
|
+// alert(html);
|
|
|
+//
|
|
|
+// Note: move the sample code to the bottom of this
|
|
|
+// file before uncommenting it.
|
|
|
+//
|
|
|
+
|
|
|
+
|
|
|
+//
|
|
|
+// Showdown namespace
|
|
|
+//
|
|
|
+var Showdown = {};
|
|
|
+
|
|
|
+//
|
|
|
+// converter
|
|
|
+//
|
|
|
+// Wraps all "globals" so that the only thing
|
|
|
+// exposed is makeHtml().
|
|
|
+//
|
|
|
+Showdown.converter = function() {
|
|
|
+
|
|
|
+//
|
|
|
+// Globals:
|
|
|
+//
|
|
|
+
|
|
|
+// Global hashes, used by various utility routines
|
|
|
+var g_urls;
|
|
|
+var g_titles;
|
|
|
+var g_html_blocks;
|
|
|
+
|
|
|
+// Used to track when we're inside an ordered or unordered list
|
|
|
+// (see _ProcessListItems() for details):
|
|
|
+var g_list_level = 0;
|
|
|
+
|
|
|
+
|
|
|
+this.makeHtml = function(text) {
|
|
|
+//
|
|
|
+// Main function. The order in which other subs are called here is
|
|
|
+// essential. Link and image substitutions need to happen before
|
|
|
+// _EscapeSpecialCharsWithinTagAttributes(), so that any *'s or _'s in the <a>
|
|
|
+// and <img> tags get encoded.
|
|
|
+//
|
|
|
+
|
|
|
+ // Clear the global hashes. If we don't clear these, you get conflicts
|
|
|
+ // from other articles when generating a page which contains more than
|
|
|
+ // one article (e.g. an index page that shows the N most recent
|
|
|
+ // articles):
|
|
|
+ g_urls = new Array();
|
|
|
+ g_titles = new Array();
|
|
|
+ g_html_blocks = new Array();
|
|
|
+
|
|
|
+ // attacklab: Replace ~ with ~T
|
|
|
+ // This lets us use tilde as an escape char to avoid md5 hashes
|
|
|
+ // The choice of character is arbitray; anything that isn't
|
|
|
+ // magic in Markdown will work.
|
|
|
+ text = text.replace(/~/g,"~T");
|
|
|
+
|
|
|
+ // attacklab: Replace $ with ~D
|
|
|
+ // RegExp interprets $ as a special character
|
|
|
+ // when it's in a replacement string
|
|
|
+ text = text.replace(/\$/g,"~D");
|
|
|
+
|
|
|
+ // Standardize line endings
|
|
|
+ text = text.replace(/\r\n/g,"\n"); // DOS to Unix
|
|
|
+ text = text.replace(/\r/g,"\n"); // Mac to Unix
|
|
|
+
|
|
|
+ // Make sure text begins and ends with a couple of newlines:
|
|
|
+ text = "\n\n" + text + "\n\n";
|
|
|
+
|
|
|
+ // Convert all tabs to spaces.
|
|
|
+ text = _Detab(text);
|
|
|
+
|
|
|
+ // Strip any lines consisting only of spaces and tabs.
|
|
|
+ // This makes subsequent regexen easier to write, because we can
|
|
|
+ // match consecutive blank lines with /\n+/ instead of something
|
|
|
+ // contorted like /[ \t]*\n+/ .
|
|
|
+ text = text.replace(/^[ \t]+$/mg,"");
|
|
|
+
|
|
|
+ // Turn block-level HTML blocks into hash entries
|
|
|
+ text = _HashHTMLBlocks(text);
|
|
|
+
|
|
|
+ // Strip link definitions, store in hashes.
|
|
|
+ text = _StripLinkDefinitions(text);
|
|
|
+
|
|
|
+ text = _RunBlockGamut(text);
|
|
|
+
|
|
|
+ text = _UnescapeSpecialChars(text);
|
|
|
+
|
|
|
+ // attacklab: Restore dollar signs
|
|
|
+ text = text.replace(/~D/g,"$$");
|
|
|
+
|
|
|
+ // attacklab: Restore tildes
|
|
|
+ text = text.replace(/~T/g,"~");
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _StripLinkDefinitions = function(text) {
|
|
|
+//
|
|
|
+// Strips link definitions from text, stores the URLs and titles in
|
|
|
+// hash references.
|
|
|
+//
|
|
|
+
|
|
|
+ // Link defs are in the form: ^[id]: url "optional title"
|
|
|
+
|
|
|
+ /*
|
|
|
+ var text = text.replace(/
|
|
|
+ ^[ ]{0,3}\[(.+)\]: // id = $1 attacklab: g_tab_width - 1
|
|
|
+ [ \t]*
|
|
|
+ \n? // maybe *one* newline
|
|
|
+ [ \t]*
|
|
|
+ <?(\S+?)>? // url = $2
|
|
|
+ [ \t]*
|
|
|
+ \n? // maybe one newline
|
|
|
+ [ \t]*
|
|
|
+ (?:
|
|
|
+ (\n*) // any lines skipped = $3 attacklab: lookbehind removed
|
|
|
+ ["(]
|
|
|
+ (.+?) // title = $4
|
|
|
+ [")]
|
|
|
+ [ \t]*
|
|
|
+ )? // title is optional
|
|
|
+ (?:\n+|$)
|
|
|
+ /gm,
|
|
|
+ function(){...});
|
|
|
+ */
|
|
|
+ var text = text.replace(/^[ ]{0,3}\[(.+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?[ \t]*\n?[ \t]*(?:(\n*)["(](.+?)[")][ \t]*)?(?:\n+|\Z)/gm,
|
|
|
+ function (wholeMatch,m1,m2,m3,m4) {
|
|
|
+ m1 = m1.toLowerCase();
|
|
|
+ g_urls[m1] = _EncodeAmpsAndAngles(m2); // Link IDs are case-insensitive
|
|
|
+ if (m3) {
|
|
|
+ // Oops, found blank lines, so it's not a title.
|
|
|
+ // Put back the parenthetical statement we stole.
|
|
|
+ return m3+m4;
|
|
|
+ } else if (m4) {
|
|
|
+ g_titles[m1] = m4.replace(/"/g,""");
|
|
|
+ }
|
|
|
+
|
|
|
+ // Completely remove the definition from the text
|
|
|
+ return "";
|
|
|
+ }
|
|
|
+ );
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _HashHTMLBlocks = function(text) {
|
|
|
+ // attacklab: Double up blank lines to reduce lookaround
|
|
|
+ text = text.replace(/\n/g,"\n\n");
|
|
|
+
|
|
|
+ // Hashify HTML blocks:
|
|
|
+ // We only want to do this for block-level HTML tags, such as headers,
|
|
|
+ // lists, and tables. That's because we still want to wrap <p>s around
|
|
|
+ // "paragraphs" that are wrapped in non-block-level tags, such as anchors,
|
|
|
+ // phrase emphasis, and spans. The list of tags we're looking for is
|
|
|
+ // hard-coded:
|
|
|
+ var block_tags_a = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del"
|
|
|
+ var block_tags_b = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math"
|
|
|
+
|
|
|
+ // First, look for nested blocks, e.g.:
|
|
|
+ // <div>
|
|
|
+ // <div>
|
|
|
+ // tags for inner block must be indented.
|
|
|
+ // </div>
|
|
|
+ // </div>
|
|
|
+ //
|
|
|
+ // The outermost tags must start at the left margin for this to match, and
|
|
|
+ // the inner nested divs must be indented.
|
|
|
+ // We need to do this before the next, more liberal match, because the next
|
|
|
+ // match will start at the first `<div>` and stop at the first `</div>`.
|
|
|
+
|
|
|
+ // attacklab: This regex can be expensive when it fails.
|
|
|
+ /*
|
|
|
+ var text = text.replace(/
|
|
|
+ ( // save in $1
|
|
|
+ ^ // start of line (with /m)
|
|
|
+ <($block_tags_a) // start tag = $2
|
|
|
+ \b // word break
|
|
|
+ // attacklab: hack around khtml/pcre bug...
|
|
|
+ [^\r]*?\n // any number of lines, minimally matching
|
|
|
+ </\2> // the matching end tag
|
|
|
+ [ \t]* // trailing spaces/tabs
|
|
|
+ (?=\n+) // followed by a newline
|
|
|
+ ) // attacklab: there are sentinel newlines at end of document
|
|
|
+ /gm,function(){...}};
|
|
|
+ */
|
|
|
+ text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del)\b[^\r]*?\n<\/\2>[ \t]*(?=\n+))/gm,hashElement);
|
|
|
+
|
|
|
+ //
|
|
|
+ // Now match more liberally, simply from `\n<tag>` to `</tag>\n`
|
|
|
+ //
|
|
|
+
|
|
|
+ /*
|
|
|
+ var text = text.replace(/
|
|
|
+ ( // save in $1
|
|
|
+ ^ // start of line (with /m)
|
|
|
+ <($block_tags_b) // start tag = $2
|
|
|
+ \b // word break
|
|
|
+ // attacklab: hack around khtml/pcre bug...
|
|
|
+ [^\r]*? // any number of lines, minimally matching
|
|
|
+ .*</\2> // the matching end tag
|
|
|
+ [ \t]* // trailing spaces/tabs
|
|
|
+ (?=\n+) // followed by a newline
|
|
|
+ ) // attacklab: there are sentinel newlines at end of document
|
|
|
+ /gm,function(){...}};
|
|
|
+ */
|
|
|
+ text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math)\b[^\r]*?.*<\/\2>[ \t]*(?=\n+)\n)/gm,hashElement);
|
|
|
+
|
|
|
+ // Special case just for <hr />. It was easier to make a special case than
|
|
|
+ // to make the other regex more complicated.
|
|
|
+
|
|
|
+ /*
|
|
|
+ text = text.replace(/
|
|
|
+ ( // save in $1
|
|
|
+ \n\n // Starting after a blank line
|
|
|
+ [ ]{0,3}
|
|
|
+ (<(hr) // start tag = $2
|
|
|
+ \b // word break
|
|
|
+ ([^<>])*? //
|
|
|
+ \/?>) // the matching end tag
|
|
|
+ [ \t]*
|
|
|
+ (?=\n{2,}) // followed by a blank line
|
|
|
+ )
|
|
|
+ /g,hashElement);
|
|
|
+ */
|
|
|
+ text = text.replace(/(\n[ ]{0,3}(<(hr)\b([^<>])*?\/?>)[ \t]*(?=\n{2,}))/g,hashElement);
|
|
|
+
|
|
|
+ // Special case for standalone HTML comments:
|
|
|
+
|
|
|
+ /*
|
|
|
+ text = text.replace(/
|
|
|
+ ( // save in $1
|
|
|
+ \n\n // Starting after a blank line
|
|
|
+ [ ]{0,3} // attacklab: g_tab_width - 1
|
|
|
+ <!
|
|
|
+ (--[^\r]*?--\s*)+
|
|
|
+ >
|
|
|
+ [ \t]*
|
|
|
+ (?=\n{2,}) // followed by a blank line
|
|
|
+ )
|
|
|
+ /g,hashElement);
|
|
|
+ */
|
|
|
+ text = text.replace(/(\n\n[ ]{0,3}<!(--[^\r]*?--\s*)+>[ \t]*(?=\n{2,}))/g,hashElement);
|
|
|
+
|
|
|
+ // PHP and ASP-style processor instructions (<?...?> and <%...%>)
|
|
|
+
|
|
|
+ /*
|
|
|
+ text = text.replace(/
|
|
|
+ (?:
|
|
|
+ \n\n // Starting after a blank line
|
|
|
+ )
|
|
|
+ ( // save in $1
|
|
|
+ [ ]{0,3} // attacklab: g_tab_width - 1
|
|
|
+ (?:
|
|
|
+ <([?%]) // $2
|
|
|
+ [^\r]*?
|
|
|
+ \2>
|
|
|
+ )
|
|
|
+ [ \t]*
|
|
|
+ (?=\n{2,}) // followed by a blank line
|
|
|
+ )
|
|
|
+ /g,hashElement);
|
|
|
+ */
|
|
|
+ text = text.replace(/(?:\n\n)([ ]{0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g,hashElement);
|
|
|
+
|
|
|
+ // attacklab: Undo double lines (see comment at top of this function)
|
|
|
+ text = text.replace(/\n\n/g,"\n");
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+var hashElement = function(wholeMatch,m1) {
|
|
|
+ var blockText = m1;
|
|
|
+
|
|
|
+ // Undo double lines
|
|
|
+ blockText = blockText.replace(/\n\n/g,"\n");
|
|
|
+ blockText = blockText.replace(/^\n/,"");
|
|
|
+
|
|
|
+ // strip trailing blank lines
|
|
|
+ blockText = blockText.replace(/\n+$/g,"");
|
|
|
+
|
|
|
+ // Replace the element text with a marker ("~KxK" where x is its key)
|
|
|
+ blockText = "\n\n~K" + (g_html_blocks.push(blockText)-1) + "K\n\n";
|
|
|
+
|
|
|
+ return blockText;
|
|
|
+};
|
|
|
+
|
|
|
+var _RunBlockGamut = function(text) {
|
|
|
+//
|
|
|
+// These are all the transformations that form block-level
|
|
|
+// tags like paragraphs, headers, and list items.
|
|
|
+//
|
|
|
+ text = _DoHeaders(text);
|
|
|
+
|
|
|
+ // Do Horizontal Rules:
|
|
|
+ var key = hashBlock("<hr />");
|
|
|
+ text = text.replace(/^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$/gm,key);
|
|
|
+ text = text.replace(/^[ ]{0,2}([ ]?\-[ ]?){3,}[ \t]*$/gm,key);
|
|
|
+ text = text.replace(/^[ ]{0,2}([ ]?\_[ ]?){3,}[ \t]*$/gm,key);
|
|
|
+
|
|
|
+ text = _DoLists(text);
|
|
|
+ text = _DoCodeBlocks(text);
|
|
|
+ text = _DoBlockQuotes(text);
|
|
|
+
|
|
|
+ // We already ran _HashHTMLBlocks() before, in Markdown(), but that
|
|
|
+ // was to escape raw HTML in the original Markdown source. This time,
|
|
|
+ // we're escaping the markup we've just created, so that we don't wrap
|
|
|
+ // <p> tags around block-level tags.
|
|
|
+ text = _HashHTMLBlocks(text);
|
|
|
+ text = _FormParagraphs(text);
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _RunSpanGamut = function(text) {
|
|
|
+//
|
|
|
+// These are all the transformations that occur *within* block-level
|
|
|
+// tags like paragraphs, headers, and list items.
|
|
|
+//
|
|
|
+
|
|
|
+ text = _DoCodeSpans(text);
|
|
|
+ text = _EscapeSpecialCharsWithinTagAttributes(text);
|
|
|
+ text = _EncodeBackslashEscapes(text);
|
|
|
+
|
|
|
+ // Process anchor and image tags. Images must come first,
|
|
|
+ // because ![foo][f] looks like an anchor.
|
|
|
+ text = _DoImages(text);
|
|
|
+ text = _DoAnchors(text);
|
|
|
+
|
|
|
+ // Make links out of things like `<http://example.com/>`
|
|
|
+ // Must come after _DoAnchors(), because you can use < and >
|
|
|
+ // delimiters in inline links like [this](<url>).
|
|
|
+ text = _DoAutoLinks(text);
|
|
|
+ text = _EncodeAmpsAndAngles(text);
|
|
|
+ text = _DoItalicsAndBold(text);
|
|
|
+
|
|
|
+ // Do hard breaks:
|
|
|
+ text = text.replace(/ +\n/g," <br />\n");
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+var _EscapeSpecialCharsWithinTagAttributes = function(text) {
|
|
|
+//
|
|
|
+// Within tags -- meaning between < and > -- encode [\ ` * _] so they
|
|
|
+// don't conflict with their use in Markdown for code, italics and strong.
|
|
|
+//
|
|
|
+
|
|
|
+ // Build a regex to find HTML tags and comments. See Friedl's
|
|
|
+ // "Mastering Regular Expressions", 2nd Ed., pp. 200-201.
|
|
|
+ var regex = /(<[a-z\/!$]("[^"]*"|'[^']*'|[^'">])*>|<!(--.*?--\s*)+>)/gi;
|
|
|
+
|
|
|
+ text = text.replace(regex, function(wholeMatch) {
|
|
|
+ var tag = wholeMatch.replace(/(.)<\/?code>(?=.)/g,"$1`");
|
|
|
+ tag = escapeCharacters(tag,"\\`*_");
|
|
|
+ return tag;
|
|
|
+ });
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+var _DoAnchors = function(text) {
|
|
|
+//
|
|
|
+// Turn Markdown link shortcuts into XHTML <a> tags.
|
|
|
+//
|
|
|
+ //
|
|
|
+ // First, handle reference-style links: [link text] [id]
|
|
|
+ //
|
|
|
+
|
|
|
+ /*
|
|
|
+ text = text.replace(/
|
|
|
+ ( // wrap whole match in $1
|
|
|
+ \[
|
|
|
+ (
|
|
|
+ (?:
|
|
|
+ \[[^\]]*\] // allow brackets nested one level
|
|
|
+ |
|
|
|
+ [^\[] // or anything else
|
|
|
+ )*
|
|
|
+ )
|
|
|
+ \]
|
|
|
+
|
|
|
+ [ ]? // one optional space
|
|
|
+ (?:\n[ ]*)? // one optional newline followed by spaces
|
|
|
+
|
|
|
+ \[
|
|
|
+ (.*?) // id = $3
|
|
|
+ \]
|
|
|
+ )()()()() // pad remaining backreferences
|
|
|
+ /g,_DoAnchors_callback);
|
|
|
+ */
|
|
|
+ text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g,writeAnchorTag);
|
|
|
+
|
|
|
+ //
|
|
|
+ // Next, inline-style links: [link text](url "optional title")
|
|
|
+ //
|
|
|
+
|
|
|
+ /*
|
|
|
+ text = text.replace(/
|
|
|
+ ( // wrap whole match in $1
|
|
|
+ \[
|
|
|
+ (
|
|
|
+ (?:
|
|
|
+ \[[^\]]*\] // allow brackets nested one level
|
|
|
+ |
|
|
|
+ [^\[\]] // or anything else
|
|
|
+ )
|
|
|
+ )
|
|
|
+ \]
|
|
|
+ \( // literal paren
|
|
|
+ [ \t]*
|
|
|
+ () // no id, so leave $3 empty
|
|
|
+ <?(.*?)>? // href = $4
|
|
|
+ [ \t]*
|
|
|
+ ( // $5
|
|
|
+ (['"]) // quote char = $6
|
|
|
+ (.*?) // Title = $7
|
|
|
+ \6 // matching quote
|
|
|
+ [ \t]* // ignore any spaces/tabs between closing quote and )
|
|
|
+ )? // title is optional
|
|
|
+ \)
|
|
|
+ )
|
|
|
+ /g,writeAnchorTag);
|
|
|
+ */
|
|
|
+ text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\]\([ \t]*()<?(.*?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g,writeAnchorTag);
|
|
|
+
|
|
|
+ //
|
|
|
+ // Last, handle reference-style shortcuts: [link text]
|
|
|
+ // These must come last in case you've also got [link test][1]
|
|
|
+ // or [link test](/foo)
|
|
|
+ //
|
|
|
+
|
|
|
+ /*
|
|
|
+ text = text.replace(/
|
|
|
+ ( // wrap whole match in $1
|
|
|
+ \[
|
|
|
+ ([^\[\]]+) // link text = $2; can't contain '[' or ']'
|
|
|
+ \]
|
|
|
+ )()()()()() // pad rest of backreferences
|
|
|
+ /g, writeAnchorTag);
|
|
|
+ */
|
|
|
+ text = text.replace(/(\[([^\[\]]+)\])()()()()()/g, writeAnchorTag);
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+var writeAnchorTag = function(wholeMatch,m1,m2,m3,m4,m5,m6,m7) {
|
|
|
+ if (m7 == undefined) m7 = "";
|
|
|
+ var whole_match = m1;
|
|
|
+ var link_text = m2;
|
|
|
+ var link_id = m3.toLowerCase();
|
|
|
+ var url = m4;
|
|
|
+ var title = m7;
|
|
|
+
|
|
|
+ if (url == "") {
|
|
|
+ if (link_id == "") {
|
|
|
+ // lower-case and turn embedded newlines into spaces
|
|
|
+ link_id = link_text.toLowerCase().replace(/ ?\n/g," ");
|
|
|
+ }
|
|
|
+ url = "#"+link_id;
|
|
|
+
|
|
|
+ if (g_urls[link_id] != undefined) {
|
|
|
+ url = g_urls[link_id];
|
|
|
+ if (g_titles[link_id] != undefined) {
|
|
|
+ title = g_titles[link_id];
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else {
|
|
|
+ if (whole_match.search(/\(\s*\)$/m)>-1) {
|
|
|
+ // Special case for explicit empty url
|
|
|
+ url = "";
|
|
|
+ } else {
|
|
|
+ return whole_match;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ url = escapeCharacters(url,"*_");
|
|
|
+ var result = "<a href=\"" + url + "\"";
|
|
|
+
|
|
|
+ if (title != "") {
|
|
|
+ title = title.replace(/"/g,""");
|
|
|
+ title = escapeCharacters(title,"*_");
|
|
|
+ result += " title=\"" + title + "\"";
|
|
|
+ }
|
|
|
+
|
|
|
+ result += ">" + link_text + "</a>";
|
|
|
+
|
|
|
+ return result;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _DoImages = function(text) {
|
|
|
+//
|
|
|
+// Turn Markdown image shortcuts into <img> tags.
|
|
|
+//
|
|
|
+
|
|
|
+ //
|
|
|
+ // First, handle reference-style labeled images: ![alt text][id]
|
|
|
+ //
|
|
|
+
|
|
|
+ /*
|
|
|
+ text = text.replace(/
|
|
|
+ ( // wrap whole match in $1
|
|
|
+ !\[
|
|
|
+ (.*?) // alt text = $2
|
|
|
+ \]
|
|
|
+
|
|
|
+ [ ]? // one optional space
|
|
|
+ (?:\n[ ]*)? // one optional newline followed by spaces
|
|
|
+
|
|
|
+ \[
|
|
|
+ (.*?) // id = $3
|
|
|
+ \]
|
|
|
+ )()()()() // pad rest of backreferences
|
|
|
+ /g,writeImageTag);
|
|
|
+ */
|
|
|
+ text = text.replace(/(!\[(.*?)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g,writeImageTag);
|
|
|
+
|
|
|
+ //
|
|
|
+ // Next, handle inline images: 
|
|
|
+ // Don't forget: encode * and _
|
|
|
+
|
|
|
+ /*
|
|
|
+ text = text.replace(/
|
|
|
+ ( // wrap whole match in $1
|
|
|
+ !\[
|
|
|
+ (.*?) // alt text = $2
|
|
|
+ \]
|
|
|
+ \s? // One optional whitespace character
|
|
|
+ \( // literal paren
|
|
|
+ [ \t]*
|
|
|
+ () // no id, so leave $3 empty
|
|
|
+ <?(\S+?)>? // src url = $4
|
|
|
+ [ \t]*
|
|
|
+ ( // $5
|
|
|
+ (['"]) // quote char = $6
|
|
|
+ (.*?) // title = $7
|
|
|
+ \6 // matching quote
|
|
|
+ [ \t]*
|
|
|
+ )? // title is optional
|
|
|
+ \)
|
|
|
+ )
|
|
|
+ /g,writeImageTag);
|
|
|
+ */
|
|
|
+ text = text.replace(/(!\[(.*?)\]\s?\([ \t]*()<?(\S+?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g,writeImageTag);
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+var writeImageTag = function(wholeMatch,m1,m2,m3,m4,m5,m6,m7) {
|
|
|
+ var whole_match = m1;
|
|
|
+ var alt_text = m2;
|
|
|
+ var link_id = m3.toLowerCase();
|
|
|
+ var url = m4;
|
|
|
+ var title = m7;
|
|
|
+
|
|
|
+ if (!title) title = "";
|
|
|
+
|
|
|
+ if (url == "") {
|
|
|
+ if (link_id == "") {
|
|
|
+ // lower-case and turn embedded newlines into spaces
|
|
|
+ link_id = alt_text.toLowerCase().replace(/ ?\n/g," ");
|
|
|
+ }
|
|
|
+ url = "#"+link_id;
|
|
|
+
|
|
|
+ if (g_urls[link_id] != undefined) {
|
|
|
+ url = g_urls[link_id];
|
|
|
+ if (g_titles[link_id] != undefined) {
|
|
|
+ title = g_titles[link_id];
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else {
|
|
|
+ return whole_match;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ alt_text = alt_text.replace(/"/g,""");
|
|
|
+ url = escapeCharacters(url,"*_");
|
|
|
+ var result = "<img src=\"" + url + "\" alt=\"" + alt_text + "\"";
|
|
|
+
|
|
|
+ // attacklab: Markdown.pl adds empty title attributes to images.
|
|
|
+ // Replicate this bug.
|
|
|
+
|
|
|
+ //if (title != "") {
|
|
|
+ title = title.replace(/"/g,""");
|
|
|
+ title = escapeCharacters(title,"*_");
|
|
|
+ result += " title=\"" + title + "\"";
|
|
|
+ //}
|
|
|
+
|
|
|
+ result += " />";
|
|
|
+
|
|
|
+ return result;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _DoHeaders = function(text) {
|
|
|
+
|
|
|
+ // Setext-style headers:
|
|
|
+ // Header 1
|
|
|
+ // ========
|
|
|
+ //
|
|
|
+ // Header 2
|
|
|
+ // --------
|
|
|
+ //
|
|
|
+ text = text.replace(/^(.+)[ \t]*\n=+[ \t]*\n+/gm,
|
|
|
+ function(wholeMatch,m1){return hashBlock("<h1>" + _RunSpanGamut(m1) + "</h1>");});
|
|
|
+
|
|
|
+ text = text.replace(/^(.+)[ \t]*\n-+[ \t]*\n+/gm,
|
|
|
+ function(matchFound,m1){return hashBlock("<h2>" + _RunSpanGamut(m1) + "</h2>");});
|
|
|
+
|
|
|
+ // atx-style headers:
|
|
|
+ // # Header 1
|
|
|
+ // ## Header 2
|
|
|
+ // ## Header 2 with closing hashes ##
|
|
|
+ // ...
|
|
|
+ // ###### Header 6
|
|
|
+ //
|
|
|
+
|
|
|
+ /*
|
|
|
+ text = text.replace(/
|
|
|
+ ^(\#{1,6}) // $1 = string of #'s
|
|
|
+ [ \t]*
|
|
|
+ (.+?) // $2 = Header text
|
|
|
+ [ \t]*
|
|
|
+ \#* // optional closing #'s (not counted)
|
|
|
+ \n+
|
|
|
+ /gm, function() {...});
|
|
|
+ */
|
|
|
+
|
|
|
+ text = text.replace(/^(\#{1,6})[ \t]*(.+?)[ \t]*\#*\n+/gm,
|
|
|
+ function(wholeMatch,m1,m2) {
|
|
|
+ var h_level = m1.length;
|
|
|
+ return hashBlock("<h" + h_level + ">" + _RunSpanGamut(m2) + "</h" + h_level + ">");
|
|
|
+ });
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+// This declaration keeps Dojo compressor from outputting garbage:
|
|
|
+var _ProcessListItems;
|
|
|
+
|
|
|
+var _DoLists = function(text) {
|
|
|
+//
|
|
|
+// Form HTML ordered (numbered) and unordered (bulleted) lists.
|
|
|
+//
|
|
|
+
|
|
|
+ // attacklab: add sentinel to hack around khtml/safari bug:
|
|
|
+ // http://bugs.webkit.org/show_bug.cgi?id=11231
|
|
|
+ text += "~0";
|
|
|
+
|
|
|
+ // Re-usable pattern to match any entirel ul or ol list:
|
|
|
+
|
|
|
+ /*
|
|
|
+ var whole_list = /
|
|
|
+ ( // $1 = whole list
|
|
|
+ ( // $2
|
|
|
+ [ ]{0,3} // attacklab: g_tab_width - 1
|
|
|
+ ([*+-]|\d+[.]) // $3 = first list item marker
|
|
|
+ [ \t]+
|
|
|
+ )
|
|
|
+ [^\r]+?
|
|
|
+ ( // $4
|
|
|
+ ~0 // sentinel for workaround; should be $
|
|
|
+ |
|
|
|
+ \n{2,}
|
|
|
+ (?=\S)
|
|
|
+ (?! // Negative lookahead for another list item marker
|
|
|
+ [ \t]*
|
|
|
+ (?:[*+-]|\d+[.])[ \t]+
|
|
|
+ )
|
|
|
+ )
|
|
|
+ )/g
|
|
|
+ */
|
|
|
+ var whole_list = /^(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm;
|
|
|
+
|
|
|
+ if (g_list_level) {
|
|
|
+ text = text.replace(whole_list,function(wholeMatch,m1,m2) {
|
|
|
+ var list = m1;
|
|
|
+ var list_type = (m2.search(/[*+-]/g)>-1) ? "ul" : "ol";
|
|
|
+
|
|
|
+ // Turn double returns into triple returns, so that we can make a
|
|
|
+ // paragraph for the last item in a list, if necessary:
|
|
|
+ list = list.replace(/\n{2,}/g,"\n\n\n");;
|
|
|
+ var result = _ProcessListItems(list);
|
|
|
+
|
|
|
+ // Trim any trailing whitespace, to put the closing `</$list_type>`
|
|
|
+ // up on the preceding line, to get it past the current stupid
|
|
|
+ // HTML block parser. This is a hack to work around the terrible
|
|
|
+ // hack that is the HTML block parser.
|
|
|
+ result = result.replace(/\s+$/,"");
|
|
|
+ result = "<"+list_type+">" + result + "</"+list_type+">\n";
|
|
|
+ return result;
|
|
|
+ });
|
|
|
+ } else {
|
|
|
+ whole_list = /(\n\n|^\n?)(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/g;
|
|
|
+ text = text.replace(whole_list,function(wholeMatch,m1,m2,m3) {
|
|
|
+ var runup = m1;
|
|
|
+ var list = m2;
|
|
|
+
|
|
|
+ var list_type = (m3.search(/[*+-]/g)>-1) ? "ul" : "ol";
|
|
|
+ // Turn double returns into triple returns, so that we can make a
|
|
|
+ // paragraph for the last item in a list, if necessary:
|
|
|
+ var list = list.replace(/\n{2,}/g,"\n\n\n");;
|
|
|
+ var result = _ProcessListItems(list);
|
|
|
+ result = runup + "<"+list_type+">\n" + result + "</"+list_type+">\n";
|
|
|
+ return result;
|
|
|
+ });
|
|
|
+ }
|
|
|
+
|
|
|
+ // attacklab: strip sentinel
|
|
|
+ text = text.replace(/~0/,"");
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+_ProcessListItems = function(list_str) {
|
|
|
+//
|
|
|
+// Process the contents of a single ordered or unordered list, splitting it
|
|
|
+// into individual list items.
|
|
|
+//
|
|
|
+ // The $g_list_level global keeps track of when we're inside a list.
|
|
|
+ // Each time we enter a list, we increment it; when we leave a list,
|
|
|
+ // we decrement. If it's zero, we're not in a list anymore.
|
|
|
+ //
|
|
|
+ // We do this because when we're not inside a list, we want to treat
|
|
|
+ // something like this:
|
|
|
+ //
|
|
|
+ // I recommend upgrading to version
|
|
|
+ // 8. Oops, now this line is treated
|
|
|
+ // as a sub-list.
|
|
|
+ //
|
|
|
+ // As a single paragraph, despite the fact that the second line starts
|
|
|
+ // with a digit-period-space sequence.
|
|
|
+ //
|
|
|
+ // Whereas when we're inside a list (or sub-list), that line will be
|
|
|
+ // treated as the start of a sub-list. What a kludge, huh? This is
|
|
|
+ // an aspect of Markdown's syntax that's hard to parse perfectly
|
|
|
+ // without resorting to mind-reading. Perhaps the solution is to
|
|
|
+ // change the syntax rules such that sub-lists must start with a
|
|
|
+ // starting cardinal number; e.g. "1." or "a.".
|
|
|
+
|
|
|
+ g_list_level++;
|
|
|
+
|
|
|
+ // trim trailing blank lines:
|
|
|
+ list_str = list_str.replace(/\n{2,}$/,"\n");
|
|
|
+
|
|
|
+ // attacklab: add sentinel to emulate \z
|
|
|
+ list_str += "~0";
|
|
|
+
|
|
|
+ /*
|
|
|
+ list_str = list_str.replace(/
|
|
|
+ (\n)? // leading line = $1
|
|
|
+ (^[ \t]*) // leading whitespace = $2
|
|
|
+ ([*+-]|\d+[.]) [ \t]+ // list marker = $3
|
|
|
+ ([^\r]+? // list item text = $4
|
|
|
+ (\n{1,2}))
|
|
|
+ (?= \n* (~0 | \2 ([*+-]|\d+[.]) [ \t]+))
|
|
|
+ /gm, function(){...});
|
|
|
+ */
|
|
|
+ list_str = list_str.replace(/(\n)?(^[ \t]*)([*+-]|\d+[.])[ \t]+([^\r]+?(\n{1,2}))(?=\n*(~0|\2([*+-]|\d+[.])[ \t]+))/gm,
|
|
|
+ function(wholeMatch,m1,m2,m3,m4){
|
|
|
+ var item = m4;
|
|
|
+ var leading_line = m1;
|
|
|
+ var leading_space = m2;
|
|
|
+
|
|
|
+ if (leading_line || (item.search(/\n{2,}/)>-1)) {
|
|
|
+ item = _RunBlockGamut(_Outdent(item));
|
|
|
+ }
|
|
|
+ else {
|
|
|
+ // Recursion for sub-lists:
|
|
|
+ item = _DoLists(_Outdent(item));
|
|
|
+ item = item.replace(/\n$/,""); // chomp(item)
|
|
|
+ item = _RunSpanGamut(item);
|
|
|
+ }
|
|
|
+
|
|
|
+ return "<li>" + item + "</li>\n";
|
|
|
+ }
|
|
|
+ );
|
|
|
+
|
|
|
+ // attacklab: strip sentinel
|
|
|
+ list_str = list_str.replace(/~0/g,"");
|
|
|
+
|
|
|
+ g_list_level--;
|
|
|
+ return list_str;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _DoCodeBlocks = function(text) {
|
|
|
+//
|
|
|
+// Process Markdown `<pre><code>` blocks.
|
|
|
+//
|
|
|
+
|
|
|
+ /*
|
|
|
+ text = text.replace(text,
|
|
|
+ /(?:\n\n|^)
|
|
|
+ ( // $1 = the code block -- one or more lines, starting with a space/tab
|
|
|
+ (?:
|
|
|
+ (?:[ ]{4}|\t) // Lines must start with a tab or a tab-width of spaces - attacklab: g_tab_width
|
|
|
+ .*\n+
|
|
|
+ )+
|
|
|
+ )
|
|
|
+ (\n*[ ]{0,3}[^ \t\n]|(?=~0)) // attacklab: g_tab_width
|
|
|
+ /g,function(){...});
|
|
|
+ */
|
|
|
+
|
|
|
+ // attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug
|
|
|
+ text += "~0";
|
|
|
+
|
|
|
+ text = text.replace(/(?:\n\n|^)((?:(?:[ ]{4}|\t).*\n+)+)(\n*[ ]{0,3}[^ \t\n]|(?=~0))/g,
|
|
|
+ function(wholeMatch,m1,m2) {
|
|
|
+ var codeblock = m1;
|
|
|
+ var nextChar = m2;
|
|
|
+
|
|
|
+ codeblock = _EncodeCode( _Outdent(codeblock));
|
|
|
+ codeblock = _Detab(codeblock);
|
|
|
+ codeblock = codeblock.replace(/^\n+/g,""); // trim leading newlines
|
|
|
+ codeblock = codeblock.replace(/\n+$/g,""); // trim trailing whitespace
|
|
|
+
|
|
|
+ codeblock = "<pre><code>" + codeblock + "\n</code></pre>";
|
|
|
+
|
|
|
+ return hashBlock(codeblock) + nextChar;
|
|
|
+ }
|
|
|
+ );
|
|
|
+
|
|
|
+ // attacklab: strip sentinel
|
|
|
+ text = text.replace(/~0/,"");
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+var hashBlock = function(text) {
|
|
|
+ text = text.replace(/(^\n+|\n+$)/g,"");
|
|
|
+ return "\n\n~K" + (g_html_blocks.push(text)-1) + "K\n\n";
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _DoCodeSpans = function(text) {
|
|
|
+//
|
|
|
+// * Backtick quotes are used for <code></code> spans.
|
|
|
+//
|
|
|
+// * You can use multiple backticks as the delimiters if you want to
|
|
|
+// include literal backticks in the code span. So, this input:
|
|
|
+//
|
|
|
+// Just type ``foo `bar` baz`` at the prompt.
|
|
|
+//
|
|
|
+// Will translate to:
|
|
|
+//
|
|
|
+// <p>Just type <code>foo `bar` baz</code> at the prompt.</p>
|
|
|
+//
|
|
|
+// There's no arbitrary limit to the number of backticks you
|
|
|
+// can use as delimters. If you need three consecutive backticks
|
|
|
+// in your code, use four for delimiters, etc.
|
|
|
+//
|
|
|
+// * You can use spaces to get literal backticks at the edges:
|
|
|
+//
|
|
|
+// ... type `` `bar` `` ...
|
|
|
+//
|
|
|
+// Turns to:
|
|
|
+//
|
|
|
+// ... type <code>`bar`</code> ...
|
|
|
+//
|
|
|
+
|
|
|
+ /*
|
|
|
+ text = text.replace(/
|
|
|
+ (^|[^\\]) // Character before opening ` can't be a backslash
|
|
|
+ (`+) // $2 = Opening run of `
|
|
|
+ ( // $3 = The code block
|
|
|
+ [^\r]*?
|
|
|
+ [^`] // attacklab: work around lack of lookbehind
|
|
|
+ )
|
|
|
+ \2 // Matching closer
|
|
|
+ (?!`)
|
|
|
+ /gm, function(){...});
|
|
|
+ */
|
|
|
+
|
|
|
+ text = text.replace(/(^|[^\\])(`+)([^\r]*?[^`])\2(?!`)/gm,
|
|
|
+ function(wholeMatch,m1,m2,m3,m4) {
|
|
|
+ var c = m3;
|
|
|
+ c = c.replace(/^([ \t]*)/g,""); // leading whitespace
|
|
|
+ c = c.replace(/[ \t]*$/g,""); // trailing whitespace
|
|
|
+ c = _EncodeCode(c);
|
|
|
+ return m1+"<code>"+c+"</code>";
|
|
|
+ });
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _EncodeCode = function(text) {
|
|
|
+//
|
|
|
+// Encode/escape certain characters inside Markdown code runs.
|
|
|
+// The point is that in code, these characters are literals,
|
|
|
+// and lose their special Markdown meanings.
|
|
|
+//
|
|
|
+ // Encode all ampersands; HTML entities are not
|
|
|
+ // entities within a Markdown code span.
|
|
|
+ text = text.replace(/&/g,"&");
|
|
|
+
|
|
|
+ // Do the angle bracket song and dance:
|
|
|
+ text = text.replace(/</g,"<");
|
|
|
+ text = text.replace(/>/g,">");
|
|
|
+
|
|
|
+ // Now, escape characters that are magic in Markdown:
|
|
|
+ text = escapeCharacters(text,"\*_{}[]\\",false);
|
|
|
+
|
|
|
+// jj the line above breaks this:
|
|
|
+//---
|
|
|
+
|
|
|
+//* Item
|
|
|
+
|
|
|
+// 1. Subitem
|
|
|
+
|
|
|
+// special char: *
|
|
|
+//---
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _DoItalicsAndBold = function(text) {
|
|
|
+
|
|
|
+ // <strong> must go first:
|
|
|
+ text = text.replace(/(\*\*|__)(?=\S)([^\r]*?\S[*_]*)\1/g,
|
|
|
+ "<strong>$2</strong>");
|
|
|
+
|
|
|
+ text = text.replace(/(\*|_)(?=\S)([^\r]*?\S)\1/g,
|
|
|
+ "<em>$2</em>");
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _DoBlockQuotes = function(text) {
|
|
|
+
|
|
|
+ /*
|
|
|
+ text = text.replace(/
|
|
|
+ ( // Wrap whole match in $1
|
|
|
+ (
|
|
|
+ ^[ \t]*>[ \t]? // '>' at the start of a line
|
|
|
+ .+\n // rest of the first line
|
|
|
+ (.+\n)* // subsequent consecutive lines
|
|
|
+ \n* // blanks
|
|
|
+ )+
|
|
|
+ )
|
|
|
+ /gm, function(){...});
|
|
|
+ */
|
|
|
+
|
|
|
+ text = text.replace(/((^[ \t]*>[ \t]?.+\n(.+\n)*\n*)+)/gm,
|
|
|
+ function(wholeMatch,m1) {
|
|
|
+ var bq = m1;
|
|
|
+
|
|
|
+ // attacklab: hack around Konqueror 3.5.4 bug:
|
|
|
+ // "----------bug".replace(/^-/g,"") == "bug"
|
|
|
+
|
|
|
+ bq = bq.replace(/^[ \t]*>[ \t]?/gm,"~0"); // trim one level of quoting
|
|
|
+
|
|
|
+ // attacklab: clean up hack
|
|
|
+ bq = bq.replace(/~0/g,"");
|
|
|
+
|
|
|
+ bq = bq.replace(/^[ \t]+$/gm,""); // trim whitespace-only lines
|
|
|
+ bq = _RunBlockGamut(bq); // recurse
|
|
|
+
|
|
|
+ bq = bq.replace(/(^|\n)/g,"$1 ");
|
|
|
+ // These leading spaces screw with <pre> content, so we need to fix that:
|
|
|
+ bq = bq.replace(
|
|
|
+ /(\s*<pre>[^\r]+?<\/pre>)/gm,
|
|
|
+ function(wholeMatch,m1) {
|
|
|
+ var pre = m1;
|
|
|
+ // attacklab: hack around Konqueror 3.5.4 bug:
|
|
|
+ pre = pre.replace(/^ /mg,"~0");
|
|
|
+ pre = pre.replace(/~0/g,"");
|
|
|
+ return pre;
|
|
|
+ });
|
|
|
+
|
|
|
+ return hashBlock("<blockquote>\n" + bq + "\n</blockquote>");
|
|
|
+ });
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _FormParagraphs = function(text) {
|
|
|
+//
|
|
|
+// Params:
|
|
|
+// $text - string to process with html <p> tags
|
|
|
+//
|
|
|
+
|
|
|
+ // Strip leading and trailing lines:
|
|
|
+ text = text.replace(/^\n+/g,"");
|
|
|
+ text = text.replace(/\n+$/g,"");
|
|
|
+
|
|
|
+ var grafs = text.split(/\n{2,}/g);
|
|
|
+ var grafsOut = new Array();
|
|
|
+
|
|
|
+ //
|
|
|
+ // Wrap <p> tags.
|
|
|
+ //
|
|
|
+ var end = grafs.length;
|
|
|
+ for (var i=0; i<end; i++) {
|
|
|
+ var str = grafs[i];
|
|
|
+
|
|
|
+ // if this is an HTML marker, copy it
|
|
|
+ if (str.search(/~K(\d+)K/g) >= 0) {
|
|
|
+ grafsOut.push(str);
|
|
|
+ }
|
|
|
+ else if (str.search(/\S/) >= 0) {
|
|
|
+ str = _RunSpanGamut(str);
|
|
|
+ str = str.replace(/^([ \t]*)/g,"<p>");
|
|
|
+ str += "</p>"
|
|
|
+ grafsOut.push(str);
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ //
|
|
|
+ // Unhashify HTML blocks
|
|
|
+ //
|
|
|
+ end = grafsOut.length;
|
|
|
+ for (var i=0; i<end; i++) {
|
|
|
+ // if this is a marker for an html block...
|
|
|
+ while (grafsOut[i].search(/~K(\d+)K/) >= 0) {
|
|
|
+ var blockText = g_html_blocks[RegExp.$1];
|
|
|
+ blockText = blockText.replace(/\$/g,"$$$$"); // Escape any dollar signs
|
|
|
+ grafsOut[i] = grafsOut[i].replace(/~K\d+K/,blockText);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return grafsOut.join("\n\n");
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _EncodeAmpsAndAngles = function(text) {
|
|
|
+// Smart processing for ampersands and angle brackets that need to be encoded.
|
|
|
+
|
|
|
+ // Ampersand-encoding based entirely on Nat Irons's Amputator MT plugin:
|
|
|
+ // http://bumppo.net/projects/amputator/
|
|
|
+ text = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g,"&");
|
|
|
+
|
|
|
+ // Encode naked <'s
|
|
|
+ text = text.replace(/<(?![a-z\/?\$!])/gi,"<");
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _EncodeBackslashEscapes = function(text) {
|
|
|
+//
|
|
|
+// Parameter: String.
|
|
|
+// Returns: The string, with after processing the following backslash
|
|
|
+// escape sequences.
|
|
|
+//
|
|
|
+
|
|
|
+ // attacklab: The polite way to do this is with the new
|
|
|
+ // escapeCharacters() function:
|
|
|
+ //
|
|
|
+ // text = escapeCharacters(text,"\\",true);
|
|
|
+ // text = escapeCharacters(text,"`*_{}[]()>#+-.!",true);
|
|
|
+ //
|
|
|
+ // ...but we're sidestepping its use of the (slow) RegExp constructor
|
|
|
+ // as an optimization for Firefox. This function gets called a LOT.
|
|
|
+
|
|
|
+ text = text.replace(/\\(\\)/g,escapeCharacters_callback);
|
|
|
+ text = text.replace(/\\([`*_{}\[\]()>#+-.!])/g,escapeCharacters_callback);
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _DoAutoLinks = function(text) {
|
|
|
+
|
|
|
+ text = text.replace(/<((https?|ftp|dict):[^'">\s]+)>/gi,"<a href=\"$1\">$1</a>");
|
|
|
+
|
|
|
+ // Email addresses: <address@domain.foo>
|
|
|
+
|
|
|
+ /*
|
|
|
+ text = text.replace(/
|
|
|
+ <
|
|
|
+ (?:mailto:)?
|
|
|
+ (
|
|
|
+ [-.\w]+
|
|
|
+ \@
|
|
|
+ [-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
|
|
|
+ )
|
|
|
+ >
|
|
|
+ /gi, _DoAutoLinks_callback());
|
|
|
+ */
|
|
|
+ text = text.replace(/<(?:mailto:)?([-.\w]+\@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi,
|
|
|
+ function(wholeMatch,m1) {
|
|
|
+ return _EncodeEmailAddress( _UnescapeSpecialChars(m1) );
|
|
|
+ }
|
|
|
+ );
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _EncodeEmailAddress = function(addr) {
|
|
|
+//
|
|
|
+// Input: an email address, e.g. "foo@example.com"
|
|
|
+//
|
|
|
+// Output: the email address as a mailto link, with each character
|
|
|
+// of the address encoded as either a decimal or hex entity, in
|
|
|
+// the hopes of foiling most address harvesting spam bots. E.g.:
|
|
|
+//
|
|
|
+// <a href="mailto:foo@e
|
|
|
+// xample.com">foo
|
|
|
+// @example.com</a>
|
|
|
+//
|
|
|
+// Based on a filter by Matthew Wickline, posted to the BBEdit-Talk
|
|
|
+// mailing list: <http://tinyurl.com/yu7ue>
|
|
|
+//
|
|
|
+
|
|
|
+ // attacklab: why can't javascript speak hex?
|
|
|
+ function char2hex(ch) {
|
|
|
+ var hexDigits = '0123456789ABCDEF';
|
|
|
+ var dec = ch.charCodeAt(0);
|
|
|
+ return(hexDigits.charAt(dec>>4) + hexDigits.charAt(dec&15));
|
|
|
+ }
|
|
|
+
|
|
|
+ var encode = [
|
|
|
+ function(ch){return "&#"+ch.charCodeAt(0)+";";},
|
|
|
+ function(ch){return "&#x"+char2hex(ch)+";";},
|
|
|
+ function(ch){return ch;}
|
|
|
+ ];
|
|
|
+
|
|
|
+ addr = "mailto:" + addr;
|
|
|
+
|
|
|
+ addr = addr.replace(/./g, function(ch) {
|
|
|
+ if (ch == "@") {
|
|
|
+ // this *must* be encoded. I insist.
|
|
|
+ ch = encode[Math.floor(Math.random()*2)](ch);
|
|
|
+ } else if (ch !=":") {
|
|
|
+ // leave ':' alone (to spot mailto: later)
|
|
|
+ var r = Math.random();
|
|
|
+ // roughly 10% raw, 45% hex, 45% dec
|
|
|
+ ch = (
|
|
|
+ r > .9 ? encode[2](ch) :
|
|
|
+ r > .45 ? encode[1](ch) :
|
|
|
+ encode[0](ch)
|
|
|
+ );
|
|
|
+ }
|
|
|
+ return ch;
|
|
|
+ });
|
|
|
+
|
|
|
+ addr = "<a href=\"" + addr + "\">" + addr + "</a>";
|
|
|
+ addr = addr.replace(/">.+:/g,"\">"); // strip the mailto: from the visible part
|
|
|
+
|
|
|
+ return addr;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _UnescapeSpecialChars = function(text) {
|
|
|
+//
|
|
|
+// Swap back in all the special characters we've hidden.
|
|
|
+//
|
|
|
+ text = text.replace(/~E(\d+)E/g,
|
|
|
+ function(wholeMatch,m1) {
|
|
|
+ var charCodeToReplace = parseInt(m1);
|
|
|
+ return String.fromCharCode(charCodeToReplace);
|
|
|
+ }
|
|
|
+ );
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var _Outdent = function(text) {
|
|
|
+//
|
|
|
+// Remove one level of line-leading tabs or spaces
|
|
|
+//
|
|
|
+
|
|
|
+ // attacklab: hack around Konqueror 3.5.4 bug:
|
|
|
+ // "----------bug".replace(/^-/g,"") == "bug"
|
|
|
+
|
|
|
+ text = text.replace(/^(\t|[ ]{1,4})/gm,"~0"); // attacklab: g_tab_width
|
|
|
+
|
|
|
+ // attacklab: clean up hack
|
|
|
+ text = text.replace(/~0/g,"")
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+var _Detab = function(text) {
|
|
|
+// attacklab: Detab's completely rewritten for speed.
|
|
|
+// In perl we could fix it by anchoring the regexp with \G.
|
|
|
+// In javascript we're less fortunate.
|
|
|
+
|
|
|
+ // expand first n-1 tabs
|
|
|
+ text = text.replace(/\t(?=\t)/g," "); // attacklab: g_tab_width
|
|
|
+
|
|
|
+ // replace the nth with two sentinels
|
|
|
+ text = text.replace(/\t/g,"~A~B");
|
|
|
+
|
|
|
+ // use the sentinel to anchor our regex so it doesn't explode
|
|
|
+ text = text.replace(/~B(.+?)~A/g,
|
|
|
+ function(wholeMatch,m1,m2) {
|
|
|
+ var leadingText = m1;
|
|
|
+ var numSpaces = 4 - leadingText.length % 4; // attacklab: g_tab_width
|
|
|
+
|
|
|
+ // there *must* be a better way to do this:
|
|
|
+ for (var i=0; i<numSpaces; i++) leadingText+=" ";
|
|
|
+
|
|
|
+ return leadingText;
|
|
|
+ }
|
|
|
+ );
|
|
|
+
|
|
|
+ // clean up sentinels
|
|
|
+ text = text.replace(/~A/g," "); // attacklab: g_tab_width
|
|
|
+ text = text.replace(/~B/g,"");
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+//
|
|
|
+// attacklab: Utility functions
|
|
|
+//
|
|
|
+
|
|
|
+
|
|
|
+var escapeCharacters = function(text, charsToEscape, afterBackslash) {
|
|
|
+ // First we have to escape the escape characters so that
|
|
|
+ // we can build a character class out of them
|
|
|
+ var regexString = "([" + charsToEscape.replace(/([\[\]\\])/g,"\\$1") + "])";
|
|
|
+
|
|
|
+ if (afterBackslash) {
|
|
|
+ regexString = "\\\\" + regexString;
|
|
|
+ }
|
|
|
+
|
|
|
+ var regex = new RegExp(regexString,"g");
|
|
|
+ text = text.replace(regex,escapeCharacters_callback);
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+var escapeCharacters_callback = function(wholeMatch,m1) {
|
|
|
+ var charCodeToEscape = m1.charCodeAt(0);
|
|
|
+ return "~E"+charCodeToEscape+"E";
|
|
|
+}
|
|
|
+
|
|
|
+} // end of Showdown.converter
|
El RIDO