From 1ec3bd3f8d237c1afb73d4ad1b7a0c24f9a6887c Mon Sep 17 00:00:00 2001
From: Nihad Abbasov <narkoz.2008@gmail.com>
Date: Tue, 7 Aug 2012 06:17:29 -0700
Subject: [PATCH] ability to preview notes
---
app/assets/javascripts/application.js | 24 +-
app/views/notes/_form.html.haml | 4 +-
.../assets/javascripts/Markdown.Converter.js | 1332 +++++++++++++++++
3 files changed, 1356 insertions(+), 4 deletions(-)
create mode 100644 vendor/assets/javascripts/Markdown.Converter.js
diff --git a/app/assets/javascripts/application.js b/app/assets/javascripts/application.js
index 56e26a06f18..be6eb922f53 100644
--- a/app/assets/javascripts/application.js
+++ b/app/assets/javascripts/application.js
@@ -18,6 +18,7 @@
//= require chosen-jquery
//= require raphael
//= require branch-graph
+//= require Markdown.Converter
//= require_tree .
$(document).ready(function(){
@@ -26,7 +27,6 @@ $(document).ready(function(){
$(this).select();
});
-
$('body').on('ajax:complete, ajax:beforeSend, submit', 'form', function(e){
var buttons = $('[type="submit"]', this);
switch( e.type ){
@@ -70,6 +70,24 @@ $(document).ready(function(){
$(".supp_diff_link").bind("click", function() {
showDiff(this);
});
+
+ /**
+ * Note markdown preview
+ *
+ */
+ $('#preview-link').on('click', function(e) {
+ var note = $('#note_note').val();
+ if (note.trim().length === 0) { note = 'Nothing to preview'; }
+ var converter = new Markdown.Converter();
+ var md_preview = converter.makeHtml(note);
+ $('#preview-note').html(md_preview);
+
+ var previewLinkText = ($(this).text() == 'Preview' ? 'Edit' : 'Preview');
+ $(this).text(previewLinkText);
+
+ $('#preview-note, #note_note').toggle();
+ e.preventDefault();
+ });
});
function focusSearch() {
@@ -108,6 +126,6 @@ function showDiff(link) {
})(jQuery);
-function ajaxGet(url) {
- $.ajax({type: "GET", url: url, dataType: "script"});
+function ajaxGet(url) {
+ $.ajax({type: "GET", url: url, dataType: "script"});
}
diff --git a/app/views/notes/_form.html.haml b/app/views/notes/_form.html.haml
index 55f69f8f97d..a2d33fb5719 100644
--- a/app/views/notes/_form.html.haml
+++ b/app/views/notes/_form.html.haml
@@ -7,10 +7,12 @@
= f.hidden_field :noteable_id
= f.hidden_field :noteable_type
- = f.text_area :note, :size => 255
+ = f.text_area :note, :size => 255
+ #preview-note.well.hide
%p.hint
= link_to "Gitlab Markdown", help_markdown_path, :target => '_blank'
is enabled.
+ = link_to 'Preview', '#', :id => 'preview-link'
.row.note_advanced_opts.hide
.span4
diff --git a/vendor/assets/javascripts/Markdown.Converter.js b/vendor/assets/javascripts/Markdown.Converter.js
new file mode 100644
index 00000000000..58fc54a1226
--- /dev/null
+++ b/vendor/assets/javascripts/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, """));
+ }
+
+ // 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)
+ |
+ [^()\s]
+ )*?
+ )>?
+ [ \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]*()<?((?:\([^)]*\)|[^()\s])*?)>?[ \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: 
+ // 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, ">").replace(/</g, "<").replace(/"/g, """);
+ }
+
+ 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, "&");
+
+ // 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;
+ }
+
+ 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, "&");
+
+ // Encode naked <'s
+ text = text.replace(/<(?![a-z\/?\$!])/gi, "<");
+
+ 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
+
+})();
--
GitLab