Community discussion, questions, and informal bug reporting is done on the discuss.CodeMirror forum.
The preferred way to report bugs is to use the GitHub issue tracker. Before reporting a bug, read these pointers.
Note: The issue tracker is for bugs, not requests for help. Questions should be asked on the discuss.CodeMirror forum instead.
CodeMirror is maintained by volunteers. They don't owe you anything, so be polite. Reports with an indignant or belligerent tone tend to be moved to the bottom of the pile.
Include information about the browser in which the problem occurred. Even if you tested several browsers, and the problem occurred in all of them, mention this fact in the bug report. Also include browser version numbers and the operating system that you're on.
Mention which release of CodeMirror you're using. Preferably, try also with the current development snapshot, to ensure the problem has not already been fixed.
Mention very precisely what went wrong. "X is broken" is not a good bug report. What did you expect to happen? What happened instead? Describe the exact steps a maintainer has to take to make the problem occur. We can not fix something that we can not observe.
If the problem can not be reproduced in any of the demos included in the CodeMirror distribution, please provide an HTML document that demonstrates the problem. The best way to do this is to go to jsbin.com, enter it there, press save, and include the resulting link in your bug report.
Note that we are not accepting any new addons or modes into the main distribution. If you've written such a module, please distribute it as a separate NPM package.
test/test.js
, some modes have their own
test suite under mode/XXX/test.js
. Feel free to add new test
suites to modes that don't have one yet (be sure to link the new
tests into test/index.html
).bin/lint
to verify that the linter is happy.test/index.html
in your browser to
run them.By contributing code to CodeMirror you
agree to license the contributed code under CodeMirror's MIT license.
confirm that you have the right to contribute and license the code in question. (Either you hold all rights on the code, or the rights holder has explicitly granted the right to use it like this, through a compatible open source license or through a direct agreement with you.)
2 spaces per indentation level, no tabs.
Note that the linter (bin/lint
) which is run after each commit
complains about unused variables and functions. Prefix their names
with an underscore to muffle it.
CodeMirror does not follow JSHint or JSLint prescribed style. Patches that try to 'fix' code to pass one of these linters will be unceremoniously discarded.