|
|
@@ -1,1454 +0,0 @@
|
|
|
-//
|
|
|
-// 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 = { extensions: {} };
|
|
|
-
|
|
|
-//
|
|
|
-// forEach
|
|
|
-//
|
|
|
-var forEach = Showdown.forEach = function(obj, callback) {
|
|
|
- if (typeof obj.forEach === 'function') {
|
|
|
- obj.forEach(callback);
|
|
|
- } else {
|
|
|
- var i, len = obj.length;
|
|
|
- for (i = 0; i < len; i++) {
|
|
|
- callback(obj[i], i, obj);
|
|
|
- }
|
|
|
- }
|
|
|
-};
|
|
|
-
|
|
|
-//
|
|
|
-// Standard extension naming
|
|
|
-//
|
|
|
-var stdExtName = function(s) {
|
|
|
- return s.replace(/[_-]||\s/g, '').toLowerCase();
|
|
|
-};
|
|
|
-
|
|
|
-//
|
|
|
-// converter
|
|
|
-//
|
|
|
-// Wraps all "globals" so that the only thing
|
|
|
-// exposed is makeHtml().
|
|
|
-//
|
|
|
-Showdown.converter = function(converter_options) {
|
|
|
-
|
|
|
-//
|
|
|
-// 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;
|
|
|
-
|
|
|
-// Global extensions
|
|
|
-var g_lang_extensions = [];
|
|
|
-var g_output_modifiers = [];
|
|
|
-
|
|
|
-
|
|
|
-//
|
|
|
-// Automatic Extension Loading (node only):
|
|
|
-//
|
|
|
-
|
|
|
-if (typeof module !== 'undefind' && typeof exports !== 'undefined' && typeof require !== 'undefind') {
|
|
|
- var fs = require('fs');
|
|
|
-
|
|
|
- if (fs) {
|
|
|
- // Search extensions folder
|
|
|
- var extensions = fs.readdirSync((__dirname || '.')+'/extensions').filter(function(file){
|
|
|
- return ~file.indexOf('.js');
|
|
|
- }).map(function(file){
|
|
|
- return file.replace(/\.js$/, '');
|
|
|
- });
|
|
|
- // Load extensions into Showdown namespace
|
|
|
- Showdown.forEach(extensions, function(ext){
|
|
|
- var name = stdExtName(ext);
|
|
|
- Showdown.extensions[name] = require('./extensions/' + ext);
|
|
|
- });
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-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 = {};
|
|
|
- g_titles = {};
|
|
|
- g_html_blocks = [];
|
|
|
-
|
|
|
- // 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,"");
|
|
|
-
|
|
|
- // Run language extensions
|
|
|
- Showdown.forEach(g_lang_extensions, function(x){
|
|
|
- text = _ExecuteExtension(x, text);
|
|
|
- });
|
|
|
-
|
|
|
- // Handle github codeblocks prior to running HashHTML so that
|
|
|
- // HTML contained within the codeblock gets escaped propertly
|
|
|
- text = _DoGithubCodeBlocks(text);
|
|
|
-
|
|
|
- // 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,"~");
|
|
|
-
|
|
|
- // Run output modifiers
|
|
|
- Showdown.forEach(g_output_modifiers, function(x){
|
|
|
- text = _ExecuteExtension(x, text);
|
|
|
- });
|
|
|
-
|
|
|
- return text;
|
|
|
-};
|
|
|
-//
|
|
|
-// Options:
|
|
|
-//
|
|
|
-
|
|
|
-// Parse extensions options into separate arrays
|
|
|
-if (converter_options && converter_options.extensions) {
|
|
|
-
|
|
|
- var self = this;
|
|
|
-
|
|
|
- // Iterate over each plugin
|
|
|
- Showdown.forEach(converter_options.extensions, function(plugin){
|
|
|
-
|
|
|
- // Assume it's a bundled plugin if a string is given
|
|
|
- if (typeof plugin === 'string') {
|
|
|
- plugin = Showdown.extensions[stdExtName(plugin)];
|
|
|
- }
|
|
|
-
|
|
|
- if (typeof plugin === 'function') {
|
|
|
- // Iterate over each extension within that plugin
|
|
|
- Showdown.forEach(plugin(self), function(ext){
|
|
|
- // Sort extensions by type
|
|
|
- if (ext.type) {
|
|
|
- if (ext.type === 'language' || ext.type === 'lang') {
|
|
|
- g_lang_extensions.push(ext);
|
|
|
- } else if (ext.type === 'output' || ext.type === 'html') {
|
|
|
- g_output_modifiers.push(ext);
|
|
|
- }
|
|
|
- } else {
|
|
|
- // Assume language extension
|
|
|
- g_output_modifiers.push(ext);
|
|
|
- }
|
|
|
- });
|
|
|
- } else {
|
|
|
- throw "Extension '" + plugin + "' could not be loaded. It was either not found or is not a valid extension.";
|
|
|
- }
|
|
|
- });
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-var _ExecuteExtension = function(ext, text) {
|
|
|
- if (ext.regex) {
|
|
|
- var re = new RegExp(ext.regex, 'g');
|
|
|
- return text.replace(re, ext.replace);
|
|
|
- } else if (ext.filter) {
|
|
|
- return ext.filter(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(){...});
|
|
|
- */
|
|
|
-
|
|
|
- // attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug
|
|
|
- text += "~0";
|
|
|
-
|
|
|
- text = text.replace(/^[ ]{0,3}\[(.+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?[ \t]*\n?[ \t]*(?:(\n*)["(](.+?)[")][ \t]*)?(?:\n+|(?=~0))/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 "";
|
|
|
- }
|
|
|
- );
|
|
|
-
|
|
|
- // attacklab: strip sentinel
|
|
|
- text = text.replace(/~0/,"");
|
|
|
-
|
|
|
- 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|style|section|header|footer|nav|article|aside";
|
|
|
- var block_tags_b = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|style|section|header|footer|nav|article|aside";
|
|
|
-
|
|
|
- // First, look for nested blocks, e.g.:
|
|
|
- // <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|style|section|header|footer|nav|article|aside)\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 id="' + headerId(m1) + '">' + _RunSpanGamut(m1) + "</h1>");});
|
|
|
-
|
|
|
- text = text.replace(/^(.+)[ \t]*\n-+[ \t]*\n+/gm,
|
|
|
- function(matchFound,m1){return hashBlock('<h2 id="' + headerId(m1) + '">' + _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 + ' id="' + headerId(m2) + '">' + _RunSpanGamut(m2) + "</h" + h_level + ">");
|
|
|
- });
|
|
|
-
|
|
|
- function headerId(m) {
|
|
|
- return m.replace(/[^\w]/g, '').toLowerCase();
|
|
|
- }
|
|
|
- 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:
|
|
|
- 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 _DoGithubCodeBlocks = function(text) {
|
|
|
-//
|
|
|
-// Process Github-style code blocks
|
|
|
-// Example:
|
|
|
-// ```ruby
|
|
|
-// def hello_world(x)
|
|
|
-// puts "Hello, #{x}"
|
|
|
-// end
|
|
|
-// ```
|
|
|
-//
|
|
|
-
|
|
|
-
|
|
|
- // attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug
|
|
|
- text += "~0";
|
|
|
-
|
|
|
- text = text.replace(/(?:^|\n)```(.*)\n([\s\S]*?)\n```/g,
|
|
|
- function(wholeMatch,m1,m2) {
|
|
|
- var language = m1;
|
|
|
- var codeblock = m2;
|
|
|
-
|
|
|
- codeblock = _EncodeCode(codeblock);
|
|
|
- codeblock = _Detab(codeblock);
|
|
|
- codeblock = codeblock.replace(/^\n+/g,""); // trim leading newlines
|
|
|
- codeblock = codeblock.replace(/\n+$/g,""); // trim trailing whitespace
|
|
|
-
|
|
|
- codeblock = "<pre><code" + (language ? " class=\"" + language + '"' : "") + ">" + codeblock + "\n</code></pre>";
|
|
|
-
|
|
|
- return hashBlock(codeblock);
|
|
|
- }
|
|
|
- );
|
|
|
-
|
|
|
- // attacklab: strip sentinel
|
|
|
- text = text.replace(/~0/,"");
|
|
|
-
|
|
|
- return text;
|
|
|
-}
|
|
|
-
|
|
|
-var hashBlock = function(text) {
|
|
|
- text = text.replace(/(^\n+|\n+$)/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 = [];
|
|
|
-
|
|
|
- //
|
|
|
- // 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>
|
|
|
-//
|
|
|
-
|
|
|
- var encode = [
|
|
|
- function(ch){return "&#"+ch.charCodeAt(0)+";";},
|
|
|
- function(ch){return "&#x"+ch.charCodeAt(0).toString(16)+";";},
|
|
|
- function(ch){return ch;}
|
|
|
- ];
|
|
|
-
|
|
|
- addr = "mailto:" + addr;
|
|
|
-
|
|
|
- addr = addr.replace(/./g, function(ch) {
|
|
|
- if (ch == "@") {
|
|
|
- // this *must* be encoded. I insist.
|
|
|
- ch = encode[Math.floor(Math.random()*2)](ch);
|
|
|
- } else if (ch !=":") {
|
|
|
- // leave ':' alone (to spot mailto: later)
|
|
|
- var r = Math.random();
|
|
|
- // roughly 10% raw, 45% hex, 45% dec
|
|
|
- ch = (
|
|
|
- r > .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
|
|
|
-
|
|
|
-
|
|
|
-// export
|
|
|
-if (typeof module !== 'undefined') module.exports = Showdown;
|
|
|
-
|
|
|
-// stolen from AMD branch of underscore
|
|
|
-// AMD define happens at the end for compatibility with AMD loaders
|
|
|
-// that don't enforce next-turn semantics on modules.
|
|
|
-if (typeof define === 'function' && define.amd) {
|
|
|
- define(function() {
|
|
|
- return Showdown;
|
|
|
- });
|
|
|
-}
|
Torkel Ödegaard