misspellings

Spell checker for code

This is a Python library and tool to check for misspelled words in source code. It does this by looking for words from a list of common misspellings. The dictionary it uses to do this is based on the Wikipedia list of common misspellings.

http://en.wikipedia.org/wiki/Wikipedia:Lists_of_common_misspellings/For_machines

The list has been slightly modified to remove some changes that cause a number of false positives. In particular ok->OK was removed (ok is frequently used in perl tests for instance).

Example

To try it out, merely run the following (using an old coreutils source tree as an example):

$ git clone git://git.sv.gnu.org/coreutils -b v8.10 coreutils
$ find coreutils -name '*.c' | misspellings -f -
coreutils/src/cat.c:754: efficency -> "efficiency"
coreutils/src/comm.c:198: funtion -> "function"
coreutils/src/expr.c:21: seperate -> "separate"
coreutils/src/pr.c:1417: accomodate -> "accommodate"
coreutils/src/tac.c:342: unneccessary -> "unnecessary"
coreutils/src/test.c:91: supressed -> "suppressed"

Contributions

Contributions are welcome! Please add unit tests for new features or bug fixes. To run all the unit tests run ./setup.py test. If you have tox installed, just run tox.

You can review coverage of added tests by running coverage run setup.py test and then running coverage report -m.

Note that tests are run on Travis for all supported python versions whenever the tree on github is pushed to.

The packaged version is available via pip or easy_install as misspellings. The project page is on pypi:

The source code is available in the following locations:

Bitbucket: https://bitbucket.org/lyda/misspell-check/src
code.google: http://code.google.com/p/misspell-check/
Github: https://github.com/lyda/misspell-check
Gitorious: https://gitorious.org/uu/misspell-check
Sourceforge: https://sourceforge.net/p/misspell-check

Pull requests on any of those platforms or emailed patches are fine.

TODO

Some items on the TODO list:

Implement option to interactively fix files.
Give some thought to supporting multiple languages?
Might a "common misspellings" list be different for different English users - might an American make one set of mistakes while a German writing English make another? Source of this data?
Fix sed flag. Have it support sed -i optionally, have it output all unambiguous sed commands, have it be more careful on what it replaces. It might also be an idea to have a perl output option.
Use generators to allow finding errors as you go. Currently misspellings grabs all files first, then checks them, which can take a while.
Lacking tests for misspellings cli.
Support UTF8: #16

Credits

Kevin Lyda: Initial shell goo and python version.
Steven Myint: Better python idioms and style. Mixed case support. Travis/tox support.
Maciej Blizinski: Potential use in OpenCSW pushed move to python.
Ville Skyttä: Sped up wordification, editor-friendly reporting.