update markdown converter from showdown source, handles trailing parens etc.
This commit is contained in:
Sam Saffron
parent
374820ae8b
commit
e55b713c59
|
|
@ -1,3 +1,5 @@
|
|||
/* LICENSE: http://code.google.com/p/pagedown/source/browse/LICENSE.txt */
|
||||
|
||||
var Markdown;
|
||||
|
||||
if (typeof exports === "object" && typeof require === "function") // we're in a CommonJS (e.g. Node.js) module
|
||||
|
|
@ -67,7 +69,11 @@ else
|
|||
if (original === identity)
|
||||
this[hookname] = func;
|
||||
else
|
||||
this[hookname] = function (x) { return func(original(x)); }
|
||||
this[hookname] = function (text) {
|
||||
var args = Array.prototype.slice.call(arguments, 0);
|
||||
args[0] = original.apply(null, args);
|
||||
return func.apply(null, args);
|
||||
};
|
||||
},
|
||||
set: function (hookname, func) {
|
||||
if (!this[hookname])
|
||||
|
|
@ -103,9 +109,28 @@ else
|
|||
|
||||
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
|
||||
|
||||
// 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("plainLinkText");
|
||||
|
||||
// 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("preConversion");
|
||||
|
||||
// called with the text once all normalizations have been completed (tabs to spaces, line endings, etc.), but before any conversions have
|
||||
pluginHooks.addNoop("postNormalization");
|
||||
|
||||
// Called with the text before / after creating block elements like code blocks and lists. Note that this is called recursively
|
||||
// with inner content, e.g. it's called with the full text, and then only with the content of a blockquote. The inner
|
||||
// call will receive outdented text.
|
||||
pluginHooks.addNoop("preBlockGamut");
|
||||
pluginHooks.addNoop("postBlockGamut");
|
||||
|
||||
// called with the text of a single block element before / after the span-level conversions (bold, code spans, etc.) have been made
|
||||
pluginHooks.addNoop("preSpanGamut");
|
||||
pluginHooks.addNoop("postSpanGamut");
|
||||
|
||||
// called with the final cooked HTML code. The result of this plugin hook is the actual output of makeHtml
|
||||
pluginHooks.addNoop("postConversion");
|
||||
|
||||
//
|
||||
// Private state of the converter instance:
|
||||
|
|
@ -168,6 +193,8 @@ else
|
|||
// match consecutive blank lines with /\n+/ instead of something
|
||||
// contorted like /[ \t]*\n+/ .
|
||||
text = text.replace(/^[ \t]+$/mg, "");
|
||||
|
||||
text = pluginHooks.postNormalization(text);
|
||||
|
||||
// Turn block-level HTML blocks into hash entries
|
||||
text = _HashHTMLBlocks(text);
|
||||
|
|
@ -378,12 +405,17 @@ else
|
|||
|
||||
return blockText;
|
||||
}
|
||||
|
||||
var blockGamutHookCallback = function (t) { return _RunBlockGamut(t); }
|
||||
|
||||
function _RunBlockGamut(text, doNotUnhash) {
|
||||
//
|
||||
// These are all the transformations that form block-level
|
||||
// tags like paragraphs, headers, and list items.
|
||||
//
|
||||
|
||||
text = pluginHooks.preBlockGamut(text, blockGamutHookCallback);
|
||||
|
||||
text = _DoHeaders(text);
|
||||
|
||||
// Do Horizontal Rules:
|
||||
|
|
@ -395,6 +427,8 @@ else
|
|||
text = _DoLists(text);
|
||||
text = _DoCodeBlocks(text);
|
||||
text = _DoBlockQuotes(text);
|
||||
|
||||
text = pluginHooks.postBlockGamut(text, blockGamutHookCallback);
|
||||
|
||||
// We already ran _HashHTMLBlocks() before, in Markdown(), but that
|
||||
// was to escape raw HTML in the original Markdown source. This time,
|
||||
|
|
@ -412,6 +446,8 @@ else
|
|||
// tags like paragraphs, headers, and list items.
|
||||
//
|
||||
|
||||
text = pluginHooks.preSpanGamut(text);
|
||||
|
||||
text = _DoCodeSpans(text);
|
||||
text = _EscapeSpecialCharsWithinTagAttributes(text);
|
||||
text = _EncodeBackslashEscapes(text);
|
||||
|
|
@ -433,6 +469,8 @@ else
|
|||
|
||||
// Do hard breaks:
|
||||
text = text.replace(/ +\n/g, " <br>\n");
|
||||
|
||||
text = pluginHooks.postSpanGamut(text);
|
||||
|
||||
return text;
|
||||
}
|
||||
|
|
@ -1169,7 +1207,7 @@ else
|
|||
text = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g, "&");
|
||||
|
||||
// Encode naked <'s
|
||||
text = text.replace(/<(?![a-z\/?\$!])/gi, "<");
|
||||
text = text.replace(/<(?![a-z\/?!]|~D)/gi, "<");
|
||||
|
||||
return text;
|
||||
}
|
||||
|
|
@ -1194,6 +1232,36 @@ else
|
|||
text = text.replace(/\\([`*_{}\[\]()>#+-.!])/g, escapeCharacters_callback);
|
||||
return text;
|
||||
}
|
||||
|
||||
function handleTrailingParens(wholeMatch, lookbehind, protocol, link) {
|
||||
if (lookbehind)
|
||||
return wholeMatch;
|
||||
if (link.charAt(link.length - 1) !== ")")
|
||||
return "<" + protocol + link + ">";
|
||||
var parens = link.match(/[()]/g);
|
||||
var level = 0;
|
||||
for (var i = 0; i < parens.length; i++) {
|
||||
if (parens[i] === "(") {
|
||||
if (level <= 0)
|
||||
level = 1;
|
||||
else
|
||||
level++;
|
||||
}
|
||||
else {
|
||||
level--;
|
||||
}
|
||||
}
|
||||
var tail = "";
|
||||
if (level < 0) {
|
||||
var re = new RegExp("\\){1," + (-level) + "}$");
|
||||
link = link.replace(re, function (trailingParens) {
|
||||
tail = trailingParens;
|
||||
return "";
|
||||
});
|
||||
}
|
||||
|
||||
return "<" + protocol + link + ">" + tail;
|
||||
}
|
||||
|
||||
function _DoAutoLinks(text) {
|
||||
|
||||
|
|
@ -1201,17 +1269,41 @@ else
|
|||
// *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");
|
||||
// must be preceded by a non-word character (and not by =" or <) and followed by non-word/EOF character
|
||||
// simulating the lookbehind in a consuming way is okay here, since a URL can neither and with a " nor
|
||||
// with a <, so there is no risk of overlapping matches.
|
||||
text = text.replace(/(="|<)?\b(https?|ftp)(:\/\/[-A-Z0-9+&@#\/%?=~_|\[\]\(\)!:,\.;]*[-A-Z0-9+&@#\/%=~_|\[\])])(?=$|\W)/gi, handleTrailingParens);
|
||||
|
||||
// autolink anything like <http://example.com>
|
||||
|
||||
var replacer = function (wholematch, m1) {
|
||||
m1encoded = m1.replace(/\_\_/, '%5F%5F');
|
||||
return "<a href=\"" + m1encoded + "\">" + pluginHooks.plainLinkText(m1) + "</a>";
|
||||
m1encoded = m1.replace(/\_\_/, '%5F%5F');
|
||||
return "<a href=\"" + m1encoded + "\">" + 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;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue