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<!doctype html>
<title>CodeMirror 5</title>
<meta charset="utf-8"/>
<link rel=stylesheet href="lib/codemirror.css">
<link rel=stylesheet href="doc/docs.css">
<script src="lib/codemirror.js"></script>
<script src="mode/xml/xml.js"></script>
<script src="mode/javascript/javascript.js"></script>
<script src="mode/css/css.js"></script>
<script src="mode/htmlmixed/htmlmixed.js"></script>
<script src="addon/edit/matchbrackets.js"></script>
<script src="doc/activebookmark.js"></script>
<style>
.CodeMirror { height: auto; border: 1px solid #ddd; }
.CodeMirror-scroll { max-height: 200px; }
.CodeMirror pre { padding-left: 7px; line-height: 1.25; }
.banner { background: #ffc; padding: 6px; border-bottom: 2px solid silver; text-align: center }
</style>
<div class=banner>
Note that this is the website for CodeMirror 5. <a href="https://codemirror.net/">Version 6</a> is the current version.
</div>
<div id=nav>
<a href="https://codemirror.net/5"><h1>CodeMirror</h1><img id=logo src="doc/logo.png"></a>
<ul>
<li><a class=active data-default="true" href="#description">Home</a>
<li><a href="doc/manual.html">Manual</a>
<li><a href="https://github.com/codemirror/codemirror5">Code</a>
<li><a href="https://codemirror.net/">Version 6</a>
</ul>
<ul>
<li><a href="#features">Features</a>
<li><a href="#community">Community</a>
<li><a href="#browsersupport">Browser support</a>
</ul>
</div>
<article>
<section id=description class=first>
<p><strong>CodeMirror</strong> is a versatile text editor
implemented in JavaScript for the browser. It is specialized for
editing code, and comes with a number of <a href="mode/index.html">language modes</a> and <a href="doc/manual.html#addons">addons</a>
that implement more advanced editing functionality.</p>
<p>A rich <a href="doc/manual.html#api">programming API</a> and a
CSS <a href="doc/manual.html#styling">theming</a> system are
available for customizing CodeMirror to fit your application, and
extending it with new functionality.</p>
</section>
<section id=demo>
<h2>This is CodeMirror</h2>
<form style="position: relative; margin-top: .5em;"><textarea id=demotext>
<!-- Create a simple CodeMirror instance -->
<link rel="stylesheet" href="lib/codemirror.css">
<script src="lib/codemirror.js"></script>
<script>
var editor = CodeMirror.fromTextArea(myTextarea, {
lineNumbers: true
});
</script></textarea>
<select id="demolist" onchange="document.location = this.options[this.selectedIndex].value;">
<option value="#">Other demos...</option>
<option value="demo/complete.html">Autocompletion</option>
<option value="demo/folding.html">Code folding</option>
<option value="demo/theme.html">Themes</option>
<option value="mode/htmlmixed/index.html">Mixed language modes</option>
<option value="demo/bidi.html">Bi-directional text</option>
<option value="demo/variableheight.html">Variable font sizes</option>
<option value="demo/search.html">Search interface</option>
<option value="demo/vim.html">Vim bindings</option>
<option value="demo/emacs.html">Emacs bindings</option>
<option value="demo/sublime.html">Sublime Text bindings</option>
<option value="demo/tern.html">Tern integration</option>
<option value="demo/merge.html">Merge/diff interface</option>
<option value="demo/fullscreen.html">Full-screen editor</option>
<option value="demo/simplescrollbars.html">Custom scrollbars</option>
</select></form>
<script>
var editor = CodeMirror.fromTextArea(document.getElementById("demotext"), {
lineNumbers: true,
mode: "text/html",
matchBrackets: true
});
</script>
<div class=actions>
Get the current version: <a href="https://codemirror.net/5/codemirror.zip">5.65.16</a>.<br>
You can see the <a href="https://github.com/codemirror/codemirror5" title="GitHub repository">code</a>,<br>
read the <a href="doc/releases.html">release notes</a>,<br>
or study the <a href="doc/manual.html">user manual</a>.
</div>
</section>
<section id=features>
<h2>Features</h2>
<ul>
<li>Support for <a href="mode/index.html">over 100 languages</a> out of the box
<li>A powerful, <a href="mode/htmlmixed/index.html">composable</a> language mode <a href="doc/manual.html#modeapi">system</a>
<li><a href="doc/manual.html#addon_show-hint">Autocompletion</a> (<a href="demo/xmlcomplete.html">XML</a>)
<li><a href="doc/manual.html#addon_foldcode">Code folding</a>
<li><a href="doc/manual.html#option_extraKeys">Configurable</a> keybindings
<li><a href="demo/vim.html">Vim</a>, <a href="demo/emacs.html">Emacs</a>, and <a href="demo/sublime.html">Sublime Text</a> bindings
<li><a href="doc/manual.html#addon_search">Search and replace</a> interface
<li><a href="doc/manual.html#addon_matchbrackets">Bracket</a> and <a href="doc/manual.html#addon_matchtags">tag</a> matching
<li>Support for <a href="demo/buffers.html">split views</a>
<li><a href="doc/manual.html#addon_lint">Linter integration</a>
<li><a href="demo/variableheight.html">Mixing font sizes and styles</a>
<li><a href="demo/theme.html">Various themes</a>
<li>Able to <a href="demo/resize.html">resize to fit content</a>
<li><a href="doc/manual.html#mark_replacedWith">Inline</a> and <a href="doc/manual.html#addLineWidget">block</a> widgets
<li>Programmable <a href="demo/marker.html">gutters</a>
<li>Making ranges of text <a href="doc/manual.html#markText">styled, read-only, or atomic</a>
<li><a href="demo/bidi.html">Bi-directional text</a> support
<li>Many other <a href="doc/manual.html#api">methods</a> and <a href="doc/manual.html#addons">addons</a>...
</ul>
</section>
<section id=community>
<h2>Community</h2>
<p>CodeMirror is an open-source project shared under
an <a href="LICENSE">MIT license</a>. It is the editor used in the
dev tools for
<a href="https://hacks.mozilla.org/2013/11/firefox-developer-tools-episode-27-edit-as-html-codemirror-more/">Firefox</a>,
<a href="https://developers.google.com/chrome-developer-tools/">Chrome</a>,
and <a href="https://developer.apple.com/safari/tools/">Safari</a>, in <a href="http://www.lighttable.com/">Light
Table</a>, <a href="http://brackets.io/">Adobe
Brackets</a>, <a href="http://blog.bitbucket.org/2013/05/14/edit-your-code-in-the-cloud-with-bitbucket/">Bitbucket</a>,
and <a href="doc/realworld.html">many other projects</a>.</p>
<p>Development and bug tracking happens
on <a href="https://github.com/codemirror/CodeMirror/">github</a>
(<a href="http://marijnhaverbeke.nl/git/codemirror">alternate git
repository</a>).
Please <a href="https://codemirror.net/5/doc/reporting.html">read these
pointers</a> before submitting a bug. Use pull requests to submit
patches. All contributions must be released under the same MIT
license that CodeMirror uses.</p>
<p>Discussion around the project is done on
a <a href="https://discuss.codemirror.net">discussion forum</a>.
Announcements related to the project, such as new versions, are
posted in the
forum's <a href="https://discuss.codemirror.net/c/announce">"announce"</a>
category. If needed, you can
contact <a href="mailto:marijn@haverbeke.berlin">the maintainer</a>
directly. We aim to be an inclusive, welcoming community. To make
that explicit, we have
a <a href="http://contributor-covenant.org/version/1/1/0/">code of
conduct</a> that applies to communication around the project.</p>
</section>
<section id=browsersupport>
<h2>Browser support</h2>
<p>The <em>desktop</em> versions of the following browsers,
in <em>standards mode</em> (HTML5 <code><!doctype html></code>
recommended) are supported:</p>
<table style="margin-bottom: 1em">
<tr><th>Firefox</th><td>version 4 and up</td></tr>
<tr><th>Chrome</th><td>any version</td></tr>
<tr><th>Safari</th><td>version 5.2 and up</td></tr>
<tr><th style="padding-right: 1em;">Internet Explorer/Edge</th><td>version 8 and up</td></tr>
<tr><th>Opera</th><td>version 9 and up</td></tr>
</table>
<p>Support for modern mobile browsers is experimental. Recent
versions of the iOS browser and Chrome on Android should work
pretty well.</p>
</section>
</article>
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