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@ -32,7 +32,7 @@ bower install markdown-it --save |
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## Usage |
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```js |
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// node.js, standard way: |
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// node.js, "classic" way: |
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var MarkdownIt = require('markdown-it'), |
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md = new MarkdownIt(); |
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console.log(md.render('# markdown-it rulezz!')); |
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@ -48,26 +48,53 @@ console.log(md.render('# markdown-it rulezz!')); |
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``` |
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### Options |
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### Configuring |
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By default markdown-it is configured to be similar to GFM, but with HTML disabled. |
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This is easy to change if you prefer to use different settings. |
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By default `markdown-it` is configured to be similar to GFM, but with HTML disabled. |
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This is easy to change if you prefer different settings. |
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There are two ways to define options. |
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Usually, you will define everything via constructor. |
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#### constructor(preset, options) |
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- __preset__ (String): "full"|"commonmark"|Optional. |
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##### preset (String) - `"full"`|`"commonmark"`, optional. |
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Define options in the constructor: |
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`markdown-it` offers some presets as a convenience to quickly enable/disable |
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active syntax rules and options for common use cases. |
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- ["commonmark"](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/commonmark.js) - enable strict [CommonMark](http://commonmark.org/) mode. |
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- ["full"](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/full.js) - |
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all rules enabled, but still without html, typographer & autolinker. |
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- [default](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/default.js) - |
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when no preset name given. |
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```js |
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// commonmark mode: |
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var md = require('markdown-it')('commonmark'); |
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// default mode: |
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var md = require('markdown-it')(); |
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// enable everything: |
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var md = require('markdown-it')('full', { |
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html: true, |
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linkify: true, |
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typographer: true |
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}); |
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``` |
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##### options |
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```js |
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// Actual default values |
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var md = require('markdown-it')({ |
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html: false, // Enable HTML tags in source |
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xhtmlOut: false, // Use '/' to close single tags (<br />) |
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xhtmlOut: false, // Use '/' to close single tags (<br />). |
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// This is only for full CommonMark compatibility. |
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breaks: false, // Convert '\n' in paragraphs into <br> |
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langPrefix: 'language-', // CSS language prefix for fenced blocks |
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langPrefix: 'language-', // CSS language prefix for fenced blocks. Can be |
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// useful for external highlighters. |
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linkify: false, // Autoconvert URL-like text to links |
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// Enable some language-neutral replacement + quotes beautification |
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@ -78,59 +105,37 @@ var md = require('markdown-it')({ |
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quotes: '“”‘’', |
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// Highlighter function. Should return escaped HTML, |
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// or '' if the source string is not changed |
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// or '' if the source string is not changed and should be escaped externaly. |
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highlight: function (/*str, lang*/) { return ''; } |
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}); |
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console.log(md.render('# markdown-it rulezz!')); |
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// => <h1>markdown-it rulezz!</h1> |
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``` |
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#### .set |
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Or define options via the `.set()` method: |
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#### .set({ keys: values }) |
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Probably, you will never need it. But you can change options after |
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constructor call. |
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```js |
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var md = require('markdown-it')(); |
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md.set({ |
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html: true, |
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breaks: true |
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}); |
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.set({ html: true, breaks: true }) |
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.set({ typographer, true }); |
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``` |
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**Note:** To achieve the best possible performance, don't modify a `markdown-it` |
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instance on the fly. If you need multiple configurations it's best to create |
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multiple instances and initialize each with a configuration that is ideal for |
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that instance. |
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multiple instances and initialize each with separate config. |
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### Presets |
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#### .use(plugin, options) |
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`markdown-it` offers some "presets" as a convenience to quickly enable/disable |
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active syntax rules and options for common use cases. |
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#### commonmark |
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Enable strict [CommonMark](http://commonmark.org/) mode with the `commonmark` preset: |
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Sugar to activate plugins. |
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```js |
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var md = require('markdown-it')('commonmark'); |
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``` |
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#### full |
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Enable all available rules (but still with default options, if not set): |
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```js |
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var md = require('markdown-it')('full'); |
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// Or with options: |
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var md = require('markdown-it')('full', { |
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html: true, |
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linkify: true, |
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typographer: true |
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}); |
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var md = require('markdown-it')() |
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.use(plugin1) |
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.use(plugin2, opts) |
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.use(plugin3); |
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``` |
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@ -186,8 +191,9 @@ old-style rules via external plugins if you prefer. |
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```js |
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var md = require('markdown-it')(); |
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md.inline.ruler.enable([ 'ins', 'mark' ]); |
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md.block.ruler.disable([ 'table' ]); |
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// Activate/deactivate rules |
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md.enable([ 'ins', 'mark' ]).disable([ 'table' ]); |
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// Enable everything |
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md = require('markdown-it')('full', { |
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@ -196,18 +202,15 @@ md = require('markdown-it')('full', { |
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typographer: true, |
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}); |
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// |
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// Manually enable rules, disabled by default: |
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// |
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var md = require('markdown-it')(); |
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md.block.ruler.core([ |
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'abbr' |
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]); |
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md.block.ruler.enable([ |
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md.enable([ |
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/* core */ |
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'abbr', |
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/* block */ |
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'footnote', |
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'deflist' |
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]); |
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md.block.ruler.enable([ |
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'deflist', |
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/* inline */ |
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'footnote_inline', |
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'ins', |
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'mark', |
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@ -250,50 +253,6 @@ Of course, you can also add your own rules or replace the defaults with somethin |
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more advanced or specific to your language. |
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### Plugins |
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Easily load plugins with the `.use()` method: |
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```js |
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var md = require('markdown-it')(); |
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md.use(plugin1) |
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.use(plugin2, opts) |
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.use(plugin3); |
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``` |
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## References / Thanks |
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Big thanks to [John MacFarlane](https://github.com/jgm) for his work on the |
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CommonMark spec and reference implementations. His work saved us a lot of time |
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during this project's development. |
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**Related Links:** |
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1. https://github.com/jgm/CommonMark - reference CommonMark implementations in C & JS, |
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also contains latest spec & online demo. |
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2. http://talk.commonmark.org - CommonMark forum, good place to collaborate |
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developers' efforts. |
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## Development / Modification |
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Parser consists of several responsibilities chains, filled with rules. You can |
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reconfigure anyone as you wish. Render also can be modified and extended. See |
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source code to understand details. Pay attention to these properties: |
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```js |
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MarkdownIt.core |
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MarkdownIt.core.ruler |
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MarkdownIt.block |
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MarkdownIt.block.ruler |
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MarkdownIt.inline |
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MarkdownIt.inline.ruler |
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MarkdownIt.renderer |
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MarkdownIt.renderer.rules |
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``` |
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## Benchmark |
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Here is result of CommonMark spec parse at Core i5 2.4 GHz (i5-4258U): |
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@ -320,6 +279,19 @@ Because it's written in monomorphyc style and use JIT inline caches effectively. |
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- Vitaly Puzrin [github/puzrin](https://github.com/puzrin) |
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## References / Thanks |
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Big thanks to [John MacFarlane](https://github.com/jgm) for his work on the |
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CommonMark spec and reference implementations. His work saved us a lot of time |
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during this project's development. |
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**Related Links:** |
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1. https://github.com/jgm/CommonMark - reference CommonMark implementations in C & JS, |
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also contains latest spec & online demo. |
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2. http://talk.commonmark.org - CommonMark forum, good place to collaborate |
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developers' efforts. |
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## License |
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[MIT](https://github.com/markdown-it/markdown-it/blob/master/LICENSE) |
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Vitaly Puzrin
10 years ago