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Removes unautop and autop methods: use embed shortcodes for oembed. R…

…emove tinymce editor if using MD. Adds public wrapper functions

git-svn-id: http://plugins.svn.wordpress.org/wp-markdown/trunk@633701 b8457f37-d9ea-0310-8a92-e5e31aec5664
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commit d90aeedd623f4bb61cbfbce1a01990d10e9bd168 0 parents
stephenh1988 authored
81 css/demo.css
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+.wmd-panel{min-width: 500px;width: 100%;}
+.wmd-button-bar {width: 100%;}
+
+.wmd-preview {
+ border: 2px dotted #CCCCCC;
+ clear: both;
+ color: #555555;
+ font-size: 14px !important;
+ line-height: 1.4em !important;
+ margin-bottom: 5px;
+ margin-right: 5px;
+ padding: 3px;
+ width: 100%;
+}
+.wmd-preview pre{background:none;border:none;}
+.wmd-preview pre code{display:block!important;}
+.wmd-preview code{display:inline;background-color: #F0FFF8;border: 1px solid #CEEFE1;font-size: 13px;padding: 1px 3px;margin:0px;}
+.wmd-help-spaces{background: white;}
+
+.wmd-button-row {position: relative;
+ margin-left: 5px;
+ margin-right: 5px;
+ margin-bottom: 0px;
+ margin-top: 10px;
+ padding: 0px;
+ height: 20px;
+}
+
+.wmd-spacer{
+ width: 1px;
+ height: 20px;
+ margin-left: 14px;
+ position: absolute;
+ background-color: Silver;
+ display: inline-block;
+ list-style: none;
+}
+
+.wmd-button {
+ width: 20px;
+ height: 20px;
+ padding-left: 2px;
+ padding-right: 3px;
+ position: absolute;
+ display: inline-block;
+ list-style: none;
+ cursor: pointer;
+}
+
+.wmd-button > span {
+ background-image: url(wmd-buttons.png);
+ background-repeat: no-repeat;
+ background-position: 0px 0px;
+ width: 20px;
+ height: 20px;
+ display: inline-block;
+}
+
+.wmd-spacer1{left: 50px;}.wmd-spacer2{left: 175px;}.wmd-spacer3{left: 300px;}
+
+.wmd-prompt-background{background-color: Black;}
+.wmd-prompt-dialog{border: 1px solid #999999;background-color: #FDFDF5;}
+.wmd-prompt-dialog > div {font-size: 0.8em;font-family: arial, helvetica, sans-serif;text-align: center;}
+.wmd-prompt-dialog > form > input[type="text"] {border: 1px solid #999999;color: black;}
+.wmd-prompt-dialog > form > input[type="button"]{font-family: trebuchet MS, helvetica, sans-serif;font-size: 0.8em;font-weight: bold;}
+
+/*Prettify*/
+.pln{color:#000}@media screen{.str{color:#080}.kwd{color:#008}.com{color:#800}.typ{color:#606}.lit{color:#066}.pun,.opn,.clo{color:#660}.tag{color:#008}.atn{color:#606}.atv{color:#080}.dec,.var{color:#606}.fun{color:red}}@media print,projection{.str{color:#060}.kwd{color:#006;font-weight:bold}.com{color:#600;font-style:italic}.typ{color:#404;font-weight:bold}.lit{color:#044}.pun,.opn,.clo{color:#440}.tag{color:#006;font-weight:bold}.atn{color:#404}.atv{color:#060}}
+ol.linenums{margin-top:0;margin-bottom:0}li.L0,li.L1,li.L2,li.L3,li.L5,li.L6,li.L7,li.L8{list-style-type:none}li.L1,li.L3,li.L5,li.L7,li.L9{background:#eee}
+
+/*Markdow Admin*/
+#ed_toolbar .wmd-button-row{margin:5px 0px}
+#postdivrich .wmd-preview {margin-right:-10px;padding:10px;width:97.1%}
+#postdivrich blockquote{
+ font-family: Georgia,"Bitstream Charter",serif;
+ font-style: italic;
+ font-weight: normal;
+ margin: 0 3em;
+}
+#postdivrich .wmd-preview ul{list-style: square;margin-left: 2em;}
+.wp-admin .wmd-prompt-dialog > div {font-size: 1em;}
BIN  css/wmd-buttons.png
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BIN  css/wmd-buttons.psd
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29 js/markdown.js
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+jQuery(document).ready(function($) {
+ $('#wmd-button-bar-help').hide();
+ $('pre').not('.wmd-help').addClass('prettyprint');
+
+ var converter2 = new Markdown.getSanitizingConverter();
+
+ var help = function () {
+ $('#wmd-button-bar-help').toggle(300,'swing');
+ }
+
+ if($('#bbp_reply_content').length>0){
+ id = "bbp_reply_content";
+ }else if($('#bbp_topic_content').length>0){
+ id = "bbp_topic_content";
+ }else{
+ id = "comment";
+ }
+
+ var editor = new Markdown.Editor(converter2, id, { handler: help });
+ editor.run();
+
+ if (typeof prettyPrint == 'function') {
+ prettyPrint();
+ editor.hooks.chain("onPreviewRefresh", function () {
+ $('.wmd-preview pre').addClass('prettyprint');
+ prettyPrint();
+ });
+ }
+});
32 js/pagedown/LICENSE.txt
@@ -0,0 +1,32 @@
+A javascript port of Markdown, as used on Stack Overflow
+and the rest of Stack Exchange network.
+
+Largely based on showdown.js by John Fraser (Attacklab).
+
+Original Markdown Copyright (c) 2004-2005 John Gruber
+ <http://daringfireball.net/projects/markdown/>
+
+
+Original Showdown code copyright (c) 2007 John Fraser
+
+Modifications and bugfixes (c) 2009 Dana Robinson
+Modifications and bugfixes (c) 2009-2011 Stack Exchange Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
1,332 js/pagedown/Markdown.Converter.js
@@ -0,0 +1,1332 @@
+var Markdown;
+
+if (typeof exports === "object" && typeof require === "function") // we're in a CommonJS (e.g. Node.js) module
+ Markdown = exports;
+else
+ Markdown = {};
+
+// The following text is included for historical reasons, but should
+// be taken with a pinch of salt; it's not all true anymore.
+
+//
+// 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.
+//
+
+
+//
+// Usage:
+//
+// var text = "Markdown *rocks*.";
+//
+// var converter = new Markdown.Converter();
+// var html = converter.makeHtml(text);
+//
+// alert(html);
+//
+// Note: move the sample code to the bottom of this
+// file before uncommenting it.
+//
+
+(function () {
+
+ function identity(x) { return x; }
+ function returnFalse(x) { return false; }
+
+ function HookCollection() { }
+
+ HookCollection.prototype = {
+
+ chain: function (hookname, func) {
+ var original = this[hookname];
+ if (!original)
+ throw new Error("unknown hook " + hookname);
+
+ if (original === identity)
+ this[hookname] = func;
+ else
+ this[hookname] = function (x) { return func(original(x)); }
+ },
+ set: function (hookname, func) {
+ if (!this[hookname])
+ throw new Error("unknown hook " + hookname);
+ this[hookname] = func;
+ },
+ addNoop: function (hookname) {
+ this[hookname] = identity;
+ },
+ addFalse: function (hookname) {
+ this[hookname] = returnFalse;
+ }
+ };
+
+ Markdown.HookCollection = HookCollection;
+
+ // g_urls and g_titles allow arbitrary user-entered strings as keys. This
+ // caused an exception (and hence stopped the rendering) when the user entered
+ // e.g. [push] or [__proto__]. Adding a prefix to the actual key prevents this
+ // (since no builtin property starts with "s_"). See
+ // http://meta.stackoverflow.com/questions/64655/strange-wmd-bug
+ // (granted, switching from Array() to Object() alone would have left only __proto__
+ // to be a problem)
+ function SaveHash() { }
+ SaveHash.prototype = {
+ set: function (key, value) {
+ this["s_" + key] = value;
+ },
+ get: function (key) {
+ return this["s_" + key];
+ }
+ };
+
+ Markdown.Converter = function () {
+ var pluginHooks = this.hooks = new HookCollection();
+ pluginHooks.addNoop("plainLinkText"); // given a URL that was encountered by itself (without markup), should return the link text that's to be given to this link
+ pluginHooks.addNoop("preConversion"); // called with the orignal text as given to makeHtml. The result of this plugin hook is the actual markdown source that will be cooked
+ pluginHooks.addNoop("postConversion"); // called with the final cooked HTML code. The result of this plugin hook is the actual output of makeHtml
+
+ //
+ // Private state of the converter instance:
+ //
+
+ // 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;
+
+ 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.
+ //
+
+ // This will only happen if makeHtml on the same converter instance is called from a plugin hook.
+ // Don't do that.
+ if (g_urls)
+ throw new Error("Recursive call to converter.makeHtml");
+
+ // Create the private state objects.
+ g_urls = new SaveHash();
+ g_titles = new SaveHash();
+ g_html_blocks = [];
+ g_list_level = 0;
+
+ text = pluginHooks.preConversion(text);
+
+ // 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, "~");
+
+ text = pluginHooks.postConversion(text);
+
+ g_html_blocks = g_titles = g_urls = null;
+
+ return text;
+ };
+
+ function _StripLinkDefinitions(text) {
+ //
+ // Strips link definitions from text, stores the URLs and titles in
+ // hash references.
+ //
+
+ // Link defs are in the form: ^[id]: url "optional title"
+
+ /*
+ text = text.replace(/
+ ^[ ]{0,3}\[(.+)\]: // id = $1 attacklab: g_tab_width - 1
+ [ \t]*
+ \n? // maybe *one* newline
+ [ \t]*
+ <?(\S+?)>? // url = $2
+ (?=\s|$) // lookahead for whitespace instead of the lookbehind removed below
+ [ \t]*
+ \n? // maybe one newline
+ [ \t]*
+ ( // (potential) title = $3
+ (\n*) // any lines skipped = $4 attacklab: lookbehind removed
+ [ \t]+
+ ["(]
+ (.+?) // title = $5
+ [")]
+ [ \t]*
+ )? // title is optional
+ (?:\n+|$)
+ /gm, function(){...});
+ */
+
+ text = text.replace(/^[ ]{0,3}\[(.+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?(?=\s|$)[ \t]*\n?[ \t]*((\n*)["(](.+?)[")][ \t]*)?(?:\n+)/gm,
+ function (wholeMatch, m1, m2, m3, m4, m5) {
+ m1 = m1.toLowerCase();
+ g_urls.set(m1, _EncodeAmpsAndAngles(m2)); // Link IDs are case-insensitive
+ if (m4) {
+ // Oops, found blank lines, so it's not a title.
+ // Put back the parenthetical statement we stole.
+ return m3;
+ } else if (m5) {
+ g_titles.set(m1, m5.replace(/"/g, "&quot;"));
+ }
+
+ // Completely remove the definition from the text
+ return "";
+ }
+ );
+
+ return text;
+ }
+
+ function _HashHTMLBlocks(text) {
+
+ // 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.
+
+ /*
+ 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`
+ //
+
+ /*
+ 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(/
+ \n // Starting after a blank line
+ [ ]{0,3}
+ ( // save in $1
+ (<(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(/
+ \n\n // Starting after a blank line
+ [ ]{0,3} // attacklab: g_tab_width - 1
+ ( // save in $1
+ <!
+ (--(?:|(?:[^>-]|-[^>])(?:[^-]|-[^-])*)--) // see http://www.w3.org/TR/html-markup/syntax.html#comments and http://meta.stackoverflow.com/q/95256
+ >
+ [ \t]*
+ (?=\n{2,}) // followed by a blank line
+ )
+ /g,hashElement);
+ */
+ text = text.replace(/\n\n[ ]{0,3}(<!(--(?:|(?:[^>-]|-[^>])(?:[^-]|-[^-])*)--)>[ \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
+ (?:
+ <([?%]) // $2
+ [^\r]*?
+ \2>
+ )
+ [ \t]*
+ (?=\n{2,}) // followed by a blank line
+ )
+ /g,hashElement);
+ */
+ text = text.replace(/(?:\n\n)([ ]{0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g, hashElement);
+
+ return text;
+ }
+
+ function hashElement(wholeMatch, m1) {
+ var blockText = m1;
+
+ // Undo double lines
+ blockText = blockText.replace(/^\n+/, "");
+
+ // strip trailing blank lines
+ blockText = blockText.replace(/\n+$/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;
+ }
+
+ function _RunBlockGamut(text, doNotUnhash) {
+ //
+ // These are all the transformations that form block-level
+ // tags like paragraphs, headers, and list items.
+ //
+ text = _DoHeaders(text);
+
+ // Do Horizontal Rules:
+ var replacement = "<hr />\n";
+ text = text.replace(/^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$/gm, replacement);
+ text = text.replace(/^[ ]{0,2}([ ]?-[ ]?){3,}[ \t]*$/gm, replacement);
+ text = text.replace(/^[ ]{0,2}([ ]?_[ ]?){3,}[ \t]*$/gm, replacement);
+
+ text = _DoLists(text);
+ text = _DoCodeBlocks(text);
+ text = _DoBlockQuotes(text);
+
+ // We already ran _HashHTMLBlocks() before, in Markdown(), but that
+ // was to escape raw HTML in the original Markdown source. This time,
+ // we're escaping the markup we've just created, so that we don't wrap
+ // <p> tags around block-level tags.
+ text = _HashHTMLBlocks(text);
+ text = _FormParagraphs(text, doNotUnhash);
+
+ return text;
+ }
+
+ function _RunSpanGamut(text) {
+ //
+ // These are all the transformations that occur *within* block-level
+ // tags like paragraphs, headers, and list items.
+ //
+
+ text = _DoCodeSpans(text);
+ text = _EscapeSpecialCharsWithinTagAttributes(text);
+ text = _EncodeBackslashEscapes(text);
+
+ // Process anchor and image tags. Images must come first,
+ // because ![foo][f] looks like an anchor.
+ text = _DoImages(text);
+ text = _DoAnchors(text);
+
+ // Make links out of things like `<http://example.com/>`
+ // Must come after _DoAnchors(), because you can use < and >
+ // delimiters in inline links like [this](<url>).
+ text = _DoAutoLinks(text);
+
+ text = text.replace(/~P/g, "://"); // put in place to prevent autolinking; reset now
+
+ text = _EncodeAmpsAndAngles(text);
+ text = _DoItalicsAndBold(text);
+
+ // Do hard breaks:
+ text = text.replace(/ +\n/g, " <br>\n");
+
+ return text;
+ }
+
+ function _EscapeSpecialCharsWithinTagAttributes(text) {
+ //
+ // Within tags -- meaning between < and > -- encode [\ ` * _] so they
+ // don't conflict with their use in Markdown for code, italics and strong.
+ //
+
+ // Build a regex to find HTML tags and comments. See Friedl's
+ // "Mastering Regular Expressions", 2nd Ed., pp. 200-201.
+
+ // SE: changed the comment part of the regex
+
+ var regex = /(<[a-z\/!$]("[^"]*"|'[^']*'|[^'">])*>|<!(--(?:|(?:[^>-]|-[^>])(?:[^-]|-[^-])*)--)>)/gi;
+
+ text = text.replace(regex, function (wholeMatch) {
+ var tag = wholeMatch.replace(/(.)<\/?code>(?=.)/g, "$1`");
+ tag = escapeCharacters(tag, wholeMatch.charAt(1) == "!" ? "\\`*_/" : "\\`*_"); // also escape slashes in comments to prevent autolinking there -- http://meta.stackoverflow.com/questions/95987
+ return tag;
+ });
+
+ return text;
+ }
+
+ function _DoAnchors(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, writeAnchorTag);
+ */
+ 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
+ (?:
+ \([^)]*\) // allow one level of (correctly nested) parens (think MSDN)
+ |
+ [^()]
+ )*?
+ )>?
+ [ \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;
+ }
+
+ function writeAnchorTag(wholeMatch, m1, m2, m3, m4, m5, m6, m7) {
+ if (m7 == undefined) m7 = "";
+ var whole_match = m1;
+ var link_text = m2.replace(/:\/\//g, "~P"); // to prevent auto-linking withing the link. will be converted back after the auto-linker runs
+ 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.get(link_id) != undefined) {
+ url = g_urls.get(link_id);
+ if (g_titles.get(link_id) != undefined) {
+ title = g_titles.get(link_id);
+ }
+ }
+ else {
+ if (whole_match.search(/\(\s*\)$/m) > -1) {
+ // Special case for explicit empty url
+ url = "";
+ } else {
+ return whole_match;
+ }
+ }
+ }
+ url = encodeProblemUrlChars(url);
+ url = escapeCharacters(url, "*_");
+ var result = "<a href=\"" + url + "\"";
+
+ if (title != "") {
+ title = attributeEncode(title);
+ title = escapeCharacters(title, "*_");
+ result += " title=\"" + title + "\"";
+ }
+
+ result += ">" + link_text + "</a>";
+
+ return result;
+ }
+
+ function _DoImages(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: ![alt text](url "optional title")
+ // 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;
+ }
+
+ function attributeEncode(text) {
+ // unconditionally replace angle brackets here -- what ends up in an attribute (e.g. alt or title)
+ // never makes sense to have verbatim HTML in it (and the sanitizer would totally break it)
+ return text.replace(/>/g, "&gt;").replace(/</g, "&lt;").replace(/"/g, "&quot;");
+ }
+
+ function writeImageTag(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.get(link_id) != undefined) {
+ url = g_urls.get(link_id);
+ if (g_titles.get(link_id) != undefined) {
+ title = g_titles.get(link_id);
+ }
+ }
+ else {
+ return whole_match;
+ }
+ }
+
+ alt_text = escapeCharacters(attributeEncode(alt_text), "*_[]()");
+ 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 = attributeEncode(title);
+ title = escapeCharacters(title, "*_");
+ result += " title=\"" + title + "\"";
+ //}
+
+ result += " />";
+
+ return result;
+ }
+
+ function _DoHeaders(text) {
+
+ // Setext-style headers:
+ // Header 1
+ // ========
+ //
+ // Header 2
+ // --------
+ //
+ text = text.replace(/^(.+)[ \t]*\n=+[ \t]*\n+/gm,
+ function (wholeMatch, m1) { return "<h1>" + _RunSpanGamut(m1) + "</h1>\n\n"; }
+ );
+
+ text = text.replace(/^(.+)[ \t]*\n-+[ \t]*\n+/gm,
+ function (matchFound, m1) { return "<h2>" + _RunSpanGamut(m1) + "</h2>\n\n"; }
+ );
+
+ // 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 "<h" + h_level + ">" + _RunSpanGamut(m2) + "</h" + h_level + ">\n\n";
+ }
+ );
+
+ return text;
+ }
+
+ function _DoLists(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";
+
+ var result = _ProcessListItems(list, list_type);
+
+ // 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";
+ var result = _ProcessListItems(list, list_type);
+ result = runup + "<" + list_type + ">\n" + result + "</" + list_type + ">\n";
+ return result;
+ });
+ }
+
+ // attacklab: strip sentinel
+ text = text.replace(/~0/, "");
+
+ return text;
+ }
+
+ var _listItemMarkers = { ol: "\\d+[.]", ul: "[*+-]" };
+
+ function _ProcessListItems(list_str, list_type) {
+ //
+ // Process the contents of a single ordered or unordered list, splitting it
+ // into individual list items.
+ //
+ // list_type is either "ul" or "ol".
+
+ // 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";
+
+ // In the original attacklab showdown, list_type was not given to this function, and anything
+ // that matched /[*+-]|\d+[.]/ would just create the next <li>, causing this mismatch:
+ //
+ // Markdown rendered by WMD rendered by MarkdownSharp
+ // ------------------------------------------------------------------
+ // 1. first 1. first 1. first
+ // 2. second 2. second 2. second
+ // - third 3. third * third
+ //
+ // We changed this to behave identical to MarkdownSharp. This is the constructed RegEx,
+ // with {MARKER} being one of \d+[.] or [*+-], depending on list_type:
+
+ /*
+ list_str = list_str.replace(/
+ (^[ \t]*) // leading whitespace = $1
+ ({MARKER}) [ \t]+ // list marker = $2
+ ([^\r]+? // list item text = $3
+ (\n+)
+ )
+ (?=
+ (~0 | \2 ({MARKER}) [ \t]+)
+ )
+ /gm, function(){...});
+ */
+
+ var marker = _listItemMarkers[list_type];
+ var re = new RegExp("(^[ \\t]*)(" + marker + ")[ \\t]+([^\\r]+?(\\n+))(?=(~0|\\1(" + marker + ")[ \\t]+))", "gm");
+ var last_item_had_a_double_newline = false;
+ list_str = list_str.replace(re,
+ function (wholeMatch, m1, m2, m3) {
+ var item = m3;
+ var leading_space = m1;
+ var ends_with_double_newline = /\n\n$/.test(item);
+ var contains_double_newline = ends_with_double_newline || item.search(/\n{2,}/) > -1;
+
+ if (contains_double_newline || last_item_had_a_double_newline) {
+ item = _RunBlockGamut(_Outdent(item), /* doNotUnhash = */true);
+ }
+ else {
+ // Recursion for sub-lists:
+ item = _DoLists(_Outdent(item));
+ item = item.replace(/\n$/, ""); // chomp(item)
+ item = _RunSpanGamut(item);
+ }
+ last_item_had_a_double_newline = ends_with_double_newline;
+ return "<li>" + item + "</li>\n";
+ }
+ );
+
+ // attacklab: strip sentinel
+ list_str = list_str.replace(/~0/g, "");
+
+ g_list_level--;
+ return list_str;
+ }
+
+ function _DoCodeBlocks(text) {
+ //
+ // Process Markdown `<pre><code>` blocks.
+ //
+
+ /*
+ text = text.replace(/
+ (?:\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 "\n\n" + codeblock + "\n\n" + nextChar;
+ }
+ );
+
+ // attacklab: strip sentinel
+ text = text.replace(/~0/, "");
+
+ return text;
+ }
+
+ function hashBlock(text) {
+ text = text.replace(/(^\n+|\n+$)/g, "");
+ return "\n\n~K" + (g_html_blocks.push(text) - 1) + "K\n\n";
+ }
+
+ function _DoCodeSpans(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);
+ c = c.replace(/:\/\//g, "~P"); // to prevent auto-linking. Not necessary in code *blocks*, but in code spans. Will be converted back after the auto-linker runs.
+ return m1 + "<code>" + c + "</code>";
+ }
+ );
+
+ return text;
+ }
+
+ function _EncodeCode(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, "&amp;");
+
+ // Do the angle bracket song and dance:
+ text = text.replace(/</g, "&lt;");
+ text = text.replace(/>/g, "&gt;");
+
+ // 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;
+ }
+
+ function _DoItalicsAndBold(text) {
+
+ // <strong> must go first:
+ text = text.replace(/([\W_]|^)(\*\*|__)(?=\S)([^\r]*?\S[\*_]*)\2([\W_]|$)/g,
+ "$1<strong>$3</strong>$4");
+
+ text = text.replace(/([\W_]|^)(\*|_)(?=\S)([^\r\*_]*?\S)\2([\W_]|$)/g,
+ "$1<em>$3</em>$4");
+
+ return text;
+ }
+
+ function _DoBlockQuotes(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;
+ }
+
+ function _FormParagraphs(text, doNotUnhash) {
+ //
+ // 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 = [];
+
+ var markerRe = /~K(\d+)K/;
+
+ //
+ // 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 (markerRe.test(str)) {
+ grafsOut.push(str);
+ }
+ else if (/\S/.test(str)) {
+ str = _RunSpanGamut(str);
+ str = str.replace(/^([ \t]*)/g, "<p>");
+ str += "</p>"
+ grafsOut.push(str);
+ }
+
+ }
+ //
+ // Unhashify HTML blocks
+ //
+ if (!doNotUnhash) {
+ end = grafsOut.length;
+ for (var i = 0; i < end; i++) {
+ var foundAny = true;
+ while (foundAny) { // we may need several runs, since the data may be nested
+ foundAny = false;
+ grafsOut[i] = grafsOut[i].replace(/~K(\d+)K/g, function (wholeMatch, id) {
+ foundAny = true;
+ return g_html_blocks[id];
+ });
+ }
+ }
+ }
+ return grafsOut.join("\n\n");
+ }
+
+ function _EncodeAmpsAndAngles(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, "&amp;");
+
+ // Encode naked <'s
+ text = text.replace(/<(?![a-z\/?\$!])/gi, "&lt;");
+
+ return text;
+ }
+
+ function _EncodeBackslashEscapes(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;
+ }
+
+ function _DoAutoLinks(text) {
+
+ // note that at this point, all other URL in the text are already hyperlinked as <a href=""></a>
+ // *except* for the <http://www.foo.com> case
+
+ // automatically add < and > around unadorned raw hyperlinks
+ // must be preceded by space/BOF and followed by non-word/EOF character
+ text = text.replace(/(^|\s)(https?|ftp)(:\/\/[-A-Z0-9+&@#\/%?=~_|\[\]\(\)!:,\.;]*[-A-Z0-9+&@#\/%=~_|\[\]])($|\W)/gi, "$1<$2$3>$4");
+
+ // autolink anything like <http://example.com>
+
+ var replacer = function (wholematch, m1) { return "<a href=\"" + m1 + "\">" + pluginHooks.plainLinkText(m1) + "</a>"; }
+ text = text.replace(/<((https?|ftp):[^'">\s]+)>/gi, replacer);
+
+ // Email addresses: <address@domain.foo>
+ /*
+ text = text.replace(/
+ <
+ (?:mailto:)?
+ (
+ [-.\w]+
+ \@
+ [-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
+ )
+ >
+ /gi, _DoAutoLinks_callback());
+ */
+
+ /* disabling email autolinking, since we don't do that on the server, either
+ text = text.replace(/<(?:mailto:)?([-.\w]+\@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi,
+ function(wholeMatch,m1) {
+ return _EncodeEmailAddress( _UnescapeSpecialChars(m1) );
+ }
+ );
+ */
+ return text;
+ }
+
+ function _UnescapeSpecialChars(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;
+ }
+
+ function _Outdent(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;
+ }
+
+ function _Detab(text) {
+ if (!/\t/.test(text))
+ return text;
+
+ var spaces = [" ", " ", " ", " "],
+ skew = 0,
+ v;
+
+ return text.replace(/[\n\t]/g, function (match, offset) {
+ if (match === "\n") {
+ skew = offset + 1;
+ return match;
+ }
+ v = (offset - skew) % 4;
+ skew = offset + 1;
+ return spaces[v];
+ });
+ }
+
+ //
+ // attacklab: Utility functions
+ //
+
+ var _problemUrlChars = /(?:["'*()[\]:]|~D)/g;
+
+ // hex-encodes some unusual "problem" chars in URLs to avoid URL detection problems
+ function encodeProblemUrlChars(url) {
+ if (!url)
+ return "";
+
+ var len = url.length;
+
+ return url.replace(_problemUrlChars, function (match, offset) {
+ if (match == "~D") // escape for dollar
+ return "%24";
+ if (match == ":") {
+ if (offset == len - 1 || /[0-9\/]/.test(url.charAt(offset + 1)))
+ return ":"
+ }
+ return "%" + match.charCodeAt(0).toString(16);
+ });
+ }
+
+
+ function escapeCharacters(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;
+ }
+
+
+ function escapeCharacters_callback(wholeMatch, m1) {
+ var charCodeToEscape = m1.charCodeAt(0);
+ return "~E" + charCodeToEscape + "E";
+ }
+
+ }; // end of the Markdown.Converter constructor
+
+})();
2,134 js/pagedown/Markdown.Editor.js
@@ -0,0 +1,2134 @@
+// needs Markdown.Converter.js at the moment
+
+(function () {
+
+ var util = {},
+ position = {},
+ ui = {},
+ doc = window.document,
+ re = window.RegExp,
+ nav = window.navigator,
+ SETTINGS = { lineLength: 72 },
+
+ // Used to work around some browser bugs where we can't use feature testing.
+ uaSniffed = {
+ isIE: /msie/.test(nav.userAgent.toLowerCase()),
+ isIE_5or6: /msie 6/.test(nav.userAgent.toLowerCase()) || /msie 5/.test(nav.userAgent.toLowerCase()),
+ isOpera: /opera/.test(nav.userAgent.toLowerCase())
+ };
+
+
+ // -------------------------------------------------------------------
+ // YOUR CHANGES GO HERE
+ //
+ // I've tried to localize the things you are likely to change to
+ // this area.
+ // -------------------------------------------------------------------
+
+ // The text that appears on the upper part of the dialog box when
+ // entering links.
+ var linkDialogText = "<p><strong>Insert Hyperlink</strong></p>";
+ var imageDialogText = "<p><strong>Insert Image</strong></p><p>http://example.com/images/diagram.jpg</p>";
+
+ // The default text that appears in the dialog input box when entering
+ // links.
+ var imageDefaultText = "http://";
+ var linkDefaultText = "http://";
+
+ var defaultHelpHoverTitle = "Markdown Editing Help";
+
+ // -------------------------------------------------------------------
+ // END OF YOUR CHANGES
+ // -------------------------------------------------------------------
+
+ // help, if given, should have a property "handler", the click handler for the help button,
+ // and can have an optional property "title" for the button's tooltip (defaults to "Markdown Editing Help").
+ // If help isn't given, not help button is created.
+ //
+ // The constructed editor object has the methods:
+ // - getConverter() returns the markdown converter object that was passed to the constructor
+ // - run() actually starts the editor; should be called after all necessary plugins are registered. Calling this more than once is a no-op.
+ // - refreshPreview() forces the preview to be updated. This method is only available after run() was called.
+ Markdown.Editor = function (markdownConverter, idPostfix, help) {
+
+ idPostfix = idPostfix || "";
+
+ var hooks = this.hooks = new Markdown.HookCollection();
+ hooks.addNoop("onPreviewRefresh"); // called with no arguments after the preview has been refreshed
+ hooks.addNoop("postBlockquoteCreation"); // called with the user's selection *after* the blockquote was created; should return the actual to-be-inserted text
+ hooks.addFalse("insertImageDialog"); /* called with one parameter: a callback to be called with the URL of the image. If the application creates
+ * its own image insertion dialog, this hook should return true, and the callback should be called with the chosen
+ * image url (or null if the user cancelled). If this hook returns false, the default dialog will be used.
+ */
+
+ this.getConverter = function () { return markdownConverter; }
+
+ var that = this,
+ panels;
+
+ this.run = function () {
+ if (panels)
+ return; // already initialized
+
+ panels = new PanelCollection(idPostfix);
+ var commandManager = new CommandManager(hooks);
+ var previewManager = new PreviewManager(markdownConverter, panels, function () { hooks.onPreviewRefresh(); });
+ var undoManager, uiManager;
+
+ if (!/\?noundo/.test(doc.location.href)) {
+ undoManager = new UndoManager(function () {
+ previewManager.refresh();
+ if (uiManager) // not available on the first call
+ uiManager.setUndoRedoButtonStates();
+ }, panels);
+ }
+
+ uiManager = new UIManager(idPostfix, panels, undoManager, previewManager, commandManager, help);
+ uiManager.setUndoRedoButtonStates();
+
+ var forceRefresh = that.refreshPreview = function () { previewManager.refresh(true); };
+
+ forceRefresh();
+ };
+
+ }
+
+ // before: contains all the text in the input box BEFORE the selection.
+ // after: contains all the text in the input box AFTER the selection.
+ function Chunks() { }
+
+ // startRegex: a regular expression to find the start tag
+ // endRegex: a regular expresssion to find the end tag
+ Chunks.prototype.findTags = function (startRegex, endRegex) {
+
+ var chunkObj = this;
+ var regex;
+
+ if (startRegex) {
+
+ regex = util.extendRegExp(startRegex, "", "$");
+
+ this.before = this.before.replace(regex,
+ function (match) {
+ chunkObj.startTag = chunkObj.startTag + match;
+ return "";
+ });
+
+ regex = util.extendRegExp(startRegex, "^", "");
+
+ this.selection = this.selection.replace(regex,
+ function (match) {
+ chunkObj.startTag = chunkObj.startTag + match;
+ return "";
+ });
+ }
+
+ if (endRegex) {
+
+ regex = util.extendRegExp(endRegex, "", "$");
+
+ this.selection = this.selection.replace(regex,
+ function (match) {
+ chunkObj.endTag = match + chunkObj.endTag;
+ return "";
+ });
+
+ regex = util.extendRegExp(endRegex, "^", "");
+
+ this.after = this.after.replace(regex,
+ function (match) {
+ chunkObj.endTag = match + chunkObj.endTag;
+ return "";
+ });
+ }
+ };
+
+ // If remove is false, the whitespace is transferred
+ // to the before/after regions.
+ //
+ // If remove is true, the whitespace disappears.
+ Chunks.prototype.trimWhitespace = function (remove) {
+ var beforeReplacer, afterReplacer, that = this;
+ if (remove) {
+ beforeReplacer = afterReplacer = "";
+ } else {
+ beforeReplacer = function (s) { that.before += s; return ""; }
+ afterReplacer = function (s) { that.after = s + that.after; return ""; }
+ }
+
+ this.selection = this.selection.replace(/^(\s*)/, beforeReplacer).replace(/(\s*)$/, afterReplacer);
+ };
+
+
+ Chunks.prototype.skipLines = function (nLinesBefore, nLinesAfter, findExtraNewlines) {
+
+ if (nLinesBefore === undefined) {
+ nLinesBefore = 1;
+ }
+
+ if (nLinesAfter === undefined) {
+ nLinesAfter = 1;
+ }
+
+ nLinesBefore++;
+ nLinesAfter++;
+
+ var regexText;
+ var replacementText;
+
+ // chrome bug ... documented at: http://meta.stackoverflow.com/questions/63307/blockquote-glitch-in-editor-in-chrome-6-and-7/65985#65985
+ if (navigator.userAgent.match(/Chrome/)) {
+ "X".match(/()./);
+ }
+
+ this.selection = this.selection.replace(/(^\n*)/, "");
+
+ this.startTag = this.startTag + re.$1;
+
+ this.selection = this.selection.replace(/(\n*$)/, "");
+ this.endTag = this.endTag + re.$1;
+ this.startTag = this.startTag.replace(/(^\n*)/, "");
+ this.before = this.before + re.$1;
+ this.endTag = this.endTag.replace(/(\n*$)/, "");
+ this.after = this.after + re.$1;
+
+ if (this.before) {
+
+ regexText = replacementText = "";
+
+ while (nLinesBefore--) {
+ regexText += "\\n?";
+ replacementText += "\n";
+ }
+
+ if (findExtraNewlines) {
+ regexText = "\\n*";
+ }
+ this.before = this.before.replace(new re(regexText + "$", ""), replacementText);
+ }
+
+ if (this.after) {
+
+ regexText = replacementText = "";
+
+ while (nLinesAfter--) {
+ regexText += "\\n?";
+ replacementText += "\n";
+ }
+ if (findExtraNewlines) {
+ regexText = "\\n*";
+ }
+
+ this.after = this.after.replace(new re(regexText, ""), replacementText);
+ }
+ };
+
+ // end of Chunks
+
+ // A collection of the important regions on the page.
+ // Cached so we don't have to keep traversing the DOM.
+ // Also holds ieCachedRange and ieCachedScrollTop, where necessary; working around
+ // this issue:
+ // Internet explorer has problems with CSS sprite buttons that use HTML
+ // lists. When you click on the background image "button", IE will
+ // select the non-existent link text and discard the selection in the
+ // textarea. The solution to this is to cache the textarea selection
+ // on the button's mousedown event and set a flag. In the part of the
+ // code where we need to grab the selection, we check for the flag
+ // and, if it's set, use the cached area instead of querying the
+ // textarea.
+ //
+ // This ONLY affects Internet Explorer (tested on versions 6, 7
+ // and 8) and ONLY on button clicks. Keyboard shortcuts work
+ // normally since the focus never leaves the textarea.
+ function PanelCollection(postfix) {
+ this.buttonBar = doc.getElementById("wmd-button-bar" + postfix);
+ this.preview = doc.getElementById("wmd-preview" + postfix);
+ this.input = doc.getElementById(postfix);
+ };
+
+ // Returns true if the DOM element is visible, false if it's hidden.
+ // Checks if display is anything other than none.
+ util.isVisible = function (elem) {
+
+ if (window.getComputedStyle) {
+ // Most browsers
+ return window.getComputedStyle(elem, null).getPropertyValue("display") !== "none";
+ }
+ else if (elem.currentStyle) {
+ // IE
+ return elem.currentStyle["display"] !== "none";
+ }
+ };
+
+
+ // Adds a listener callback to a DOM element which is fired on a specified
+ // event.
+ util.addEvent = function (elem, event, listener) {
+ if (elem.attachEvent) {
+ // IE only. The "on" is mandatory.
+ elem.attachEvent("on" + event, listener);
+ }
+ else {
+ // Other browsers.
+ elem.addEventListener(event, listener, false);
+ }
+ };
+
+
+ // Removes a listener callback from a DOM element which is fired on a specified
+ // event.
+ util.removeEvent = function (elem, event, listener) {
+ if (elem.detachEvent) {
+ // IE only. The "on" is mandatory.
+ elem.detachEvent("on" + event, listener);
+ }
+ else {
+ // Other browsers.
+ elem.removeEventListener(event, listener, false);
+ }
+ };
+
+ // Converts \r\n and \r to \n.
+ util.fixEolChars = function (text) {
+ text = text.replace(/\r\n/g, "\n");
+ text = text.replace(/\r/g, "\n");
+ return text;
+ };
+
+ // Extends a regular expression. Returns a new RegExp
+ // using pre + regex + post as the expression.
+ // Used in a few functions where we have a base
+ // expression and we want to pre- or append some
+ // conditions to it (e.g. adding "$" to the end).
+ // The flags are unchanged.
+ //
+ // regex is a RegExp, pre and post are strings.
+ util.extendRegExp = function (regex, pre, post) {
+
+ if (pre === null || pre === undefined) {
+ pre = "";
+ }
+ if (post === null || post === undefined) {
+ post = "";
+ }
+
+ var pattern = regex.toString();
+ var flags;
+
+ // Replace the flags with empty space and store them.
+ pattern = pattern.replace(/\/([gim]*)$/, function (wholeMatch, flagsPart) {
+ flags = flagsPart;
+ return "";
+ });
+
+ // Remove the slash delimiters on the regular expression.
+ pattern = pattern.replace(/(^\/|\/$)/g, "");
+ pattern = pre + pattern + post;
+
+ return new re(pattern, flags);
+ }
+
+ // UNFINISHED
+ // The assignment in the while loop makes jslint cranky.
+ // I'll change it to a better loop later.
+ position.getTop = function (elem, isInner) {
+ var result = elem.offsetTop;
+ if (!isInner) {
+ while (elem = elem.offsetParent) {
+ result += elem.offsetTop;
+ }
+ }
+ return result;
+ };
+
+ position.getHeight = function (elem) {
+ return elem.offsetHeight || elem.scrollHeight;
+ };
+
+ position.getWidth = function (elem) {
+ return elem.offsetWidth || elem.scrollWidth;
+ };
+
+ position.getPageSize = function () {
+
+ var scrollWidth, scrollHeight;
+ var innerWidth, innerHeight;
+
+ // It's not very clear which blocks work with which browsers.
+ if (self.innerHeight && self.scrollMaxY) {
+ scrollWidth = doc.body.scrollWidth;
+ scrollHeight = self.innerHeight + self.scrollMaxY;
+ }
+ else if (doc.body.scrollHeight > doc.body.offsetHeight) {
+ scrollWidth = doc.body.scrollWidth;
+ scrollHeight = doc.body.scrollHeight;
+ }
+ else {
+ scrollWidth = doc.body.offsetWidth;
+ scrollHeight = doc.body.offsetHeight;
+ }
+
+ if (self.innerHeight) {
+ // Non-IE browser
+ innerWidth = self.innerWidth;
+ innerHeight = self.innerHeight;
+ }
+ else if (doc.documentElement && doc.documentElement.clientHeight) {
+ // Some versions of IE (IE 6 w/ a DOCTYPE declaration)
+ innerWidth = doc.documentElement.clientWidth;
+ innerHeight = doc.documentElement.clientHeight;
+ }
+ else if (doc.body) {
+ // Other versions of IE
+ innerWidth = doc.body.clientWidth;
+ innerHeight = doc.body.clientHeight;
+ }
+
+ var maxWidth = Math.max(scrollWidth, innerWidth);
+ var maxHeight = Math.max(scrollHeight, innerHeight);
+ return [maxWidth, maxHeight, innerWidth, innerHeight];
+ };
+
+ // Handles pushing and popping TextareaStates for undo/redo commands.
+ // I should rename the stack variables to list.
+ function UndoManager(callback, panels) {
+
+ var undoObj = this;
+ var undoStack = []; // A stack of undo states
+ var stackPtr = 0; // The index of the current state
+ var mode = "none";
+ var lastState; // The last state
+ var timer; // The setTimeout handle for cancelling the timer
+ var inputStateObj;
+
+ // Set the mode for later logic steps.
+ var setMode = function (newMode, noSave) {
+ if (mode != newMode) {
+ mode = newMode;
+ if (!noSave) {
+ saveState();
+ }
+ }
+
+ if (!uaSniffed.isIE || mode != "moving") {
+ timer = setTimeout(refreshState, 1);
+ }
+ else {
+ inputStateObj = null;
+ }
+ };
+
+ var refreshState = function (isInitialState) {
+ inputStateObj = new TextareaState(panels, isInitialState);
+ timer = undefined;
+ };
+
+ this.setCommandMode = function () {
+ mode = "command";
+ saveState();
+ timer = setTimeout(refreshState, 0);
+ };
+
+ this.canUndo = function () {
+ return stackPtr > 1;
+ };
+
+ this.canRedo = function () {
+ if (undoStack[stackPtr + 1]) {
+ return true;
+ }
+ return false;
+ };
+
+ // Removes the last state and restores it.
+ this.undo = function () {
+
+ if (undoObj.canUndo()) {
+ if (lastState) {
+ // What about setting state -1 to null or checking for undefined?
+ lastState.restore();
+ lastState = null;
+ }
+ else {
+ undoStack[stackPtr] = new TextareaState(panels);
+ undoStack[--stackPtr].restore();
+
+ if (callback) {
+ callback();
+ }
+ }
+ }
+
+ mode = "none";
+ panels.input.focus();
+ refreshState();
+ };
+
+ // Redo an action.
+ this.redo = function () {
+
+ if (undoObj.canRedo()) {
+
+ undoStack[++stackPtr].restore();
+
+ if (callback) {
+ callback();
+ }
+ }
+
+ mode = "none";
+ panels.input.focus();
+ refreshState();
+ };
+
+ // Push the input area state to the stack.
+ var saveState = function () {
+ var currState = inputStateObj || new TextareaState(panels);
+
+ if (!currState) {
+ return false;
+ }
+ if (mode == "moving") {
+ if (!lastState) {
+ lastState = currState;
+ }
+ return;
+ }
+ if (lastState) {
+ if (undoStack[stackPtr - 1].text != lastState.text) {
+ undoStack[stackPtr++] = lastState;
+ }
+ lastState = null;
+ }
+ undoStack[stackPtr++] = currState;
+ undoStack[stackPtr + 1] = null;
+ if (callback) {
+ callback();
+ }
+ };
+
+ var handleCtrlYZ = function (event) {
+
+ var handled = false;
+
+ if (event.ctrlKey || event.metaKey) {
+
+ // IE and Opera do not support charCode.
+ var keyCode = event.charCode || event.keyCode;
+ var keyCodeChar = String.fromCharCode(keyCode);
+
+ switch (keyCodeChar) {
+
+ case "y":
+ undoObj.redo();
+ handled = true;
+ break;
+
+ case "z":
+ if (!event.shiftKey) {
+ undoObj.undo();
+ }
+ else {
+ undoObj.redo();
+ }
+ handled = true;
+ break;
+ }
+ }
+
+ if (handled) {
+ if (event.preventDefault) {
+ event.preventDefault();
+ }
+ if (window.event) {
+ window.event.returnValue = false;
+ }
+ return;
+ }
+ };
+
+ // Set the mode depending on what is going on in the input area.
+ var handleModeChange = function (event) {
+
+ if (!event.ctrlKey && !event.metaKey) {
+
+ var keyCode = event.keyCode;
+
+ if ((keyCode >= 33 && keyCode <= 40) || (keyCode >= 63232 && keyCode <= 63235)) {
+ // 33 - 40: page up/dn and arrow keys
+ // 63232 - 63235: page up/dn and arrow keys on safari
+ setMode("moving");
+ }
+ else if (keyCode == 8 || keyCode == 46 || keyCode == 127) {
+ // 8: backspace
+ // 46: delete
+ // 127: delete
+ setMode("deleting");
+ }
+ else if (keyCode == 13) {
+ // 13: Enter
+ setMode("newlines");
+ }
+ else if (keyCode == 27) {
+ // 27: escape
+ setMode("escape");
+ }
+ else if ((keyCode < 16 || keyCode > 20) && keyCode != 91) {
+ // 16-20 are shift, etc.
+ // 91: left window key
+ // I think this might be a little messed up since there are
+ // a lot of nonprinting keys above 20.
+ setMode("typing");
+ }
+ }
+ };
+
+ var setEventHandlers = function () {
+ util.addEvent(panels.input, "keypress", function (event) {
+ // keyCode 89: y
+ // keyCode 90: z
+ if ((event.ctrlKey || event.metaKey) && (event.keyCode == 89 || event.keyCode == 90)) {
+ event.preventDefault();
+ }
+ });
+
+ var handlePaste = function () {
+ if (uaSniffed.isIE || (inputStateObj && inputStateObj.text != panels.input.value)) {
+ if (timer == undefined) {
+ mode = "paste";
+ saveState();
+ refreshState();
+ }
+ }
+ };
+
+ util.addEvent(panels.input, "keydown", handleCtrlYZ);
+ util.addEvent(panels.input, "keydown", handleModeChange);
+ util.addEvent(panels.input, "mousedown", function () {
+ setMode("moving");
+ });
+
+ panels.input.onpaste = handlePaste;
+ panels.input.ondrop = handlePaste;
+ };
+
+ var init = function () {
+ setEventHandlers();
+ refreshState(true);
+ saveState();
+ };
+
+ init();
+ }
+
+ // end of UndoManager
+
+ // The input textarea state/contents.
+ // This is used to implement undo/redo by the undo manager.
+ function TextareaState(panels, isInitialState) {
+
+ // Aliases
+ var stateObj = this;
+ var inputArea = panels.input;
+ this.init = function () {
+ if (!util.isVisible(inputArea)) {
+ return;
+ }
+ if (!isInitialState && doc.activeElement && doc.activeElement !== inputArea) { // this happens when tabbing out of the input box
+ return;
+ }
+
+ this.setInputAreaSelectionStartEnd();
+ this.scrollTop = inputArea.scrollTop;
+ if (!this.text && inputArea.selectionStart || inputArea.selectionStart === 0) {
+ this.text = inputArea.value;
+ }
+
+ }
+
+ // Sets the selected text in the input box after we've performed an
+ // operation.
+ this.setInputAreaSelection = function () {
+
+ if (!util.isVisible(inputArea)) {
+ return;
+ }
+
+ if (inputArea.selectionStart !== undefined && !uaSniffed.isOpera) {
+
+ inputArea.focus();
+ inputArea.selectionStart = stateObj.start;
+ inputArea.selectionEnd = stateObj.end;
+ inputArea.scrollTop = stateObj.scrollTop;
+ }
+ else if (doc.selection) {
+
+ if (doc.activeElement && doc.activeElement !== inputArea) {
+ return;
+ }
+
+ inputArea.focus();
+ var range = inputArea.createTextRange();
+ range.moveStart("character", -inputArea.value.length);
+ range.moveEnd("character", -inputArea.value.length);
+ range.moveEnd("character", stateObj.end);
+ range.moveStart("character", stateObj.start);
+ range.select();
+ }
+ };
+
+ this.setInputAreaSelectionStartEnd = function () {
+
+ if (!panels.ieCachedRange && (inputArea.selectionStart || inputArea.selectionStart === 0)) {
+
+ stateObj.start = inputArea.selectionStart;
+ stateObj.end = inputArea.selectionEnd;
+ }
+ else if (doc.selection) {
+
+ stateObj.text = util.fixEolChars(inputArea.value);
+
+ // IE loses the selection in the textarea when buttons are
+ // clicked. On IE we cache the selection. Here, if something is cached,
+ // we take it.
+ var range = panels.ieCachedRange || doc.selection.createRange();
+
+ var fixedRange = util.fixEolChars(range.text);
+ var marker = "\x07";
+ var markedRange = marker + fixedRange + marker;
+ range.text = markedRange;
+ var inputText = util.fixEolChars(inputArea.value);
+
+ range.moveStart("character", -markedRange.length);
+ range.text = fixedRange;
+
+ stateObj.start = inputText.indexOf(marker);
+ stateObj.end = inputText.lastIndexOf(marker) - marker.length;
+
+ var len = stateObj.text.length - util.fixEolChars(inputArea.value).length;
+
+ if (len) {
+ range.moveStart("character", -fixedRange.length);
+ while (len--) {
+ fixedRange += "\n";
+ stateObj.end += 1;
+ }
+ range.text = fixedRange;
+ }
+
+ if (panels.ieCachedRange)
+ stateObj.scrollTop = panels.ieCachedScrollTop; // this is set alongside with ieCachedRange
+
+ panels.ieCachedRange = null;
+
+ this.setInputAreaSelection();
+ }
+ };
+
+ // Restore this state into the input area.
+ this.restore = function () {
+
+ if (stateObj.text != undefined && stateObj.text != inputArea.value) {
+ inputArea.value = stateObj.text;
+ }
+ this.setInputAreaSelection();
+ inputArea.scrollTop = stateObj.scrollTop;
+ };
+
+ // Gets a collection of HTML chunks from the inptut textarea.
+ this.getChunks = function () {
+
+ var chunk = new Chunks();
+ chunk.before = util.fixEolChars(stateObj.text.substring(0, stateObj.start));
+ chunk.startTag = "";
+ chunk.selection = util.fixEolChars(stateObj.text.substring(stateObj.start, stateObj.end));
+ chunk.endTag = "";
+ chunk.after = util.fixEolChars(stateObj.text.substring(stateObj.end));
+ chunk.scrollTop = stateObj.scrollTop;
+
+ return chunk;
+ };
+
+ // Sets the TextareaState properties given a chunk of markdown.
+ this.setChunks = function (chunk) {
+
+ chunk.before = chunk.before + chunk.startTag;
+ chunk.after = chunk.endTag + chunk.after;
+
+ this.start = chunk.before.length;
+ this.end = chunk.before.length + chunk.selection.length;
+ this.text = chunk.before + chunk.selection + chunk.after;
+ this.scrollTop = chunk.scrollTop;
+ };
+ this.init();
+ };
+
+ function PreviewManager(converter, panels, previewRefreshCallback) {
+
+ var managerObj = this;
+ var timeout;
+ var elapsedTime;
+ var oldInputText;
+ var maxDelay = 3000;
+ var startType = "delayed"; // The other legal value is "manual"
+
+ // Adds event listeners to elements
+ var setupEvents = function (inputElem, listener) {
+
+ util.addEvent(inputElem, "input", listener);
+ inputElem.onpaste = listener;
+ inputElem.ondrop = listener;
+
+ util.addEvent(inputElem, "keypress", listener);
+ util.addEvent(inputElem, "keydown", listener);
+ };
+
+ var getDocScrollTop = function () {
+
+ var result = 0;
+
+ if (window.innerHeight) {
+ result = window.pageYOffset;
+ }
+ else
+ if (doc.documentElement && doc.documentElement.scrollTop) {
+ result = doc.documentElement.scrollTop;
+ }
+ else
+ if (doc.body) {
+ result = doc.body.scrollTop;
+ }
+
+ return result;
+ };
+
+ var makePreviewHtml = function () {
+
+ // If there is no registered preview panel
+ // there is nothing to do.
+ if (!panels.preview)
+ return;
+
+
+ var text = panels.input.value;
+ if (text && text == oldInputText) {
+ return; // Input text hasn't changed.
+ }
+ else {
+ oldInputText = text;
+ }
+
+ var prevTime = new Date().getTime();
+
+ text = converter.makeHtml(text);
+
+ // Calculate the processing time of the HTML creation.
+ // It's used as the delay time in the event listener.
+ var currTime = new Date().getTime();
+ elapsedTime = currTime - prevTime;
+
+ pushPreviewHtml(text);
+ };
+
+ // setTimeout is already used. Used as an event listener.
+ var applyTimeout = function () {
+
+ if (timeout) {
+ clearTimeout(timeout);
+ timeout = undefined;
+ }
+
+ if (startType !== "manual") {
+
+ var delay = 0;
+
+ if (startType === "delayed") {
+ delay = elapsedTime;
+ }
+
+ if (delay > maxDelay) {
+ delay = maxDelay;
+ }
+ timeout = setTimeout(makePreviewHtml, delay);
+ }
+ };
+
+ var getScaleFactor = function (panel) {
+ if (panel.scrollHeight <= panel.clientHeight) {
+ return 1;
+ }
+ return panel.scrollTop / (panel.scrollHeight - panel.clientHeight);
+ };
+
+ var setPanelScrollTops = function () {
+ if (panels.preview) {
+ panels.preview.scrollTop = (panels.preview.scrollHeight - panels.preview.clientHeight) * getScaleFactor(panels.preview);
+ }