A full-featured markdown parser and compiler, written in javascript. Built for speed.
npm install marked --saveMinimal usage:
console.log(marked('I am using __markdown__.'));
// Outputs: <p>I am using <i>markdown</i>.</p>Example using all options:
// Set default options except highlight which has no default
marked.setOptions({
gfm: true,
highlight: function (code, lang, callback) {
pygmentize({ lang: lang, format: 'html' }, code, function (err, result) {
if (err) return callback(err);
callback(null, result.toString());
});
},
tables: true,
breaks: false,
pedantic: false,
sanitize: true,
smartLists: true,
smartypants: false,
langPrefix: 'lang-'
});
// Using async version of marked
marked('I am using __markdown__.', function (err, content) {
if (err) throw err;
console.log(content);
});Type: String
String of markdown source to be compiled.
Type: Object
Hash of options. Can also be set using the marked.setOptions method as seen
above.
Type: Function
Function called when the markdownString has been fully parsed when using
async highlighting. If the options argument is omitted, this can be used as
the second argument as seen above:
Type: Boolean
Default: true
Enable GitHub flavored markdown.
Type: Function
A function to highlight code blocks. The function takes three arguments: code, lang, and callback. The above example uses async highlighting with node-pygementize-bundled, and here is a synchronous example using highlight.js which doesn't require the callback argument:
marked.setOptions({
highlight: function (code, lang) {
return hljs.highlightAuto(lang, code).value;
}
});code
Type: String
The section of code to pass to the highlighter.
lang
Type: String
The programming language specified in the code block.
callback
Type: String
The callback function to call when using an async highlighter.
Type: Boolean
Default: true
Enable GFM tables.
This option requires the gfm option to be true.
Type: Boolean
Default: false
Enable GFM line breaks.
This option requires the gfm option to be true.
Type: Boolean
Default: false
Conform to obscure parts of markdown.pl as much as possible. Don't fix any of
the original markdown bugs or poor behavior.
Type: Boolean
Default: false
Sanitize the output. Ignore any HTML that has been input.
Type: Boolean
Default: true
Use smarter list behavior than the original markdown. May eventually be
default with the old behavior moved into pedantic.
Type: Boolean
Default: false
Use "smart" typograhic punctuation for things like quotes and dashes.
Type: String
Default: lang-
Set the prefix for code block classes.
You also have direct access to the lexer and parser if you so desire.
var tokens = marked.lexer(text, options);
console.log(marked.parser(tokens));var lexer = new marked.Lexer(options);
var tokens = lexer.lex(text);
console.log(tokens);
console.log(lexer.rules);$ marked -o hello.html
hello world
^D
$ cat hello.html
<p>hello world</p>node v0.4.x
$ node test --bench
marked completed in 12071ms.
showdown (reuse converter) completed in 27387ms.
showdown (new converter) completed in 75617ms.
markdown-js completed in 70069ms.node v0.6.x
$ node test --bench
marked completed in 6448ms.
marked (gfm) completed in 7357ms.
marked (pedantic) completed in 6092ms.
discount completed in 7314ms.
showdown (reuse converter) completed in 16018ms.
showdown (new converter) completed in 18234ms.
markdown-js completed in 24270ms.Marked is now faster than Discount, which is written in C.
For those feeling skeptical: These benchmarks run the entire markdown test suite 1000 times. The test suite tests every feature. It doesn't cater to specific aspects.
node v0.8.x
$ node test --bench
marked completed in 3411ms.
marked (gfm) completed in 3727ms.
marked (pedantic) completed in 3201ms.
robotskirt completed in 808ms.
showdown (reuse converter) completed in 11954ms.
showdown (new converter) completed in 17774ms.
markdown-js completed in 17191ms.The point of marked was to create a markdown compiler where it was possible to frequently parse huge chunks of markdown without having to worry about caching the compiled output somehow...or blocking for an unnecesarily long time.
marked is very concise and still implements all markdown features. It is also now fully compatible with the client-side.
marked more or less passes the official markdown test suite in its entirety. This is important because a surprising number of markdown compilers cannot pass more than a few tests. It was very difficult to get marked as compliant as it is. It could have cut corners in several areas for the sake of performance, but did not in order to be exactly what you expect in terms of a markdown rendering. In fact, this is why marked could be considered at a disadvantage in the benchmarks above.
Along with implementing every markdown feature, marked also implements GFM features.
$ node
> require('marked').lexer('> i am using marked.')
[ { type: 'blockquote_start' },
{ type: 'paragraph',
text: 'i am using marked.' },
{ type: 'blockquote_end' },
links: {} ]If you want to submit a pull request, make sure your changes pass the test suite. If you're adding a new feature, be sure to add your own test.
The marked test suite is set up slightly strangely: test/new is for all tests
that are not part of the original markdown.pl test suite (this is where your
test should go if you make one). test/original is only for the original
markdown.pl tests. test/tests houses both types of tests after they have been
combined and moved/generated by running node test --fix or marked --test --fix.
In other words, if you have a test to add, add it to test/new/ and then
regenerate the tests with node test --fix. Commit the result. If your test
uses a certain feature, for example, maybe it assumes GFM is not enabled, you
can add .nogfm to the filename. So, my-test.text becomes
my-test.nogfm.text. You can do this with any marked option. Say you want
line breaks and smartypants enabled, your filename should be:
my-test.breaks.smartypants.text.
To run the tests:
cd marked/
node testIf you contribute code to marked, you are implicitly allowing your code to be
distributed under the MIT license. You are also implicitly verifying that all
code is your original work. </legalese>
Copyright (c) 2011-2013, Christopher Jeffrey. (MIT License)
See LICENSE for more info.