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CodeMirror
{ } CodeMirror
/* In-browser code editing
made bearable */
CodeMirror is a JavaScript library that can
be used to create a relatively pleasant editor interface for
code-like content ― computer programs, HTML markup, and
similar. If a mode has been written for the language you are
editing, the code will be coloured, and the editor will optionally
help you with indentation.
This is the project page for CodeMirror 2, the currently more
actively developed, and recommended
version. CodeMirror 1 is still available
from here.
Supported modes:
Getting the code
All of CodeMirror is released under a MIT-style license. To get it, you can download
the latest
release or the current development
snapshot as zip files. To create a custom minified script file,
you can use the compression API.
We use git for version control.
The main repository can be fetched in this way:
git clone http://marijnhaverbeke.nl/git/codemirror2
CodeMirror can also be found on GitHub at marijnh/CodeMirror2.
If you plan to hack on the code and contribute patches, the best way
to do it is to create a GitHub fork, and send pull requests.
Documentation
The manual is your first stop for
learning how to use this library. It starts with a quick explanation
of how to use the editor, and then describes all of the (many)
options and methods that CodeMirror exposes.
For those who want to learn more about the code, there is
an overview of the internals available.
The source code
itself is, for the most part, also well commented.
Support and bug reports
There is
a Google
group (a sort of mailing list/newsgroup thing) for discussion
and news related to CodeMirror. Reporting bugs is best done
on github.
You can also e-mail me
directly: Marijn
Haverbeke.
Supported browsers
The following browsers are able to run CodeMirror:
- Firefox 2 or higher
- Chrome, any version
- Safari 3 or higher
- Internet Explorer 6 or higher
- Opera 9 or higher (with some key-handling problems on OS X)
I am not actively testing against every new browser release, and
vendors have a habit of introducing bugs all the time, so I am
relying on the community to tell me when something breaks.
See here for information on how to contact
me.
Download the latest release
Make a donation
- Paypal
- Bank
Releases:
23-08-2011: Version 2.13:
- Add Ruby, R, CoffeeScript, and Velocity modes.
- Add
getGutterElement to API.
- Several fixes to scrolling and positioning.
- Add
smartHome option.
- Add an experimental pure XML mode.
25-07-2011: Version 2.12:
- Add a SPARQL mode.
- Fix bug with cursor jumping around in an unfocused editor in IE.
- Allow key and mouse events to bubble out of the editor. Ignore widget clicks.
- Solve cursor flakiness after undo/redo.
- Fix block-reindent ignoring the last few lines.
- Fix parsing of multi-line attrs in XML mode.
- Use
innerHTML for HTML-escaping.
- Some fixes to indentation in C-like mode.
- Shrink horiz scrollbars when long lines removed.
- Fix width feedback loop bug that caused the width of an inner DIV to shrink.
04-07-2011: Version 2.11:
- Add a Scheme mode.
- Add a
replace method to search cursors, for cursor-preserving replacements.
- Make the C-like mode mode more customizeable.
- Update XML mode to spot mismatched tags.
- Add
getStateAfter API and compareState mode API methods for finer-grained mode magic.
- Add a
getScrollerElement API method to manipulate the scrolling DIV.
- Fix drag-and-drop for Firefox.
- Add a C# configuration for the C-like mode.
- Add full-screen editing and mode-changing demos.
07-06-2011: Version 2.1:
Add
a theme system
(demo). Note that this is not
backwards-compatible—you'll have to update your styles and
modes!
07-06-2011: Version 2.02:
- Add a Lua mode.
- Fix reverse-searching for a regexp.
- Empty lines can no longer break highlighting.
- Rework scrolling model (the outer wrapper no longer does the scrolling).
- Solve horizontal jittering on long lines.
- Add runmode.js.
- Immediately re-highlight text when typing.
- Fix problem with 'sticking' horizontal scrollbar.
26-05-2011: Version 2.01:
- Add a Smalltalk mode.
- Add a reStructuredText mode.
- Add a Python mode.
- Add a PL/SQL mode.
coordsChar now works- Fix a problem where
onCursorActivity interfered with onChange.
- Fix a number of scrolling and mouse-click-position glitches.
- Pass information about the changed lines to
onChange.
- Support cmd-up/down on OS X.
- Add triple-click line selection.
- Don't handle shift when changing the selection through the API.
- Support
"nocursor" mode for readOnly option.
- Add an
onHighlightComplete option.
- Fix the context menu for Firefox.