Provided by: misspell-fixer_0.5-1_all 
NAME
misspell-fixer - misspell-fixer
Utility to fix common misspellings, typos in source code. There are lots of typical misspellings in
program code. Typically they are more eye-catching in the living code but they can easily hide in
comments, examples, samples, notes and documentation. With this utility you can fix a large number of
them very quickly.
Be aware that the utility does not check or fix file names. It could easily happen that a misspelled word
is fixed in a file name in a program's code, but the file itself will not be renamed by this utility.
It is also important to be very careful when fixing public APIs!
A manual review is always needed to verify that nothing has been broken.
Synopsis
misspell-fixer [OPTION] target[s]
Options, Arguments
target[s] can be any file[s] or directory/ies.
Main options:
○ -r Real run mode: Overwrites the original files with the fixed one. Without this option the originals
will be untouched.
○ -n Disable backups. (By default the modified files' originals will be saved with the .$$.BAK suffix.)
○ -P n Enable processing on n forks. For example: -P 4 processes the files in 4 threads. (-s option is
not supported)
○ -f Fast mode. (Equivalent with -P4)
○ -h Help.
Performance note: -s, -v or the lack of -n or -r use a slower processing internal loop. So usually -frn
without -s and -v are the highest performing combination.
Output control options:
○ -s Shows diffs of changes.
○ -v Verbose mode: shows the iterated files. (Without the prefiltering step)
○ -o Verbose mode: shows progress (prints a dot for each file scanned, a comma for each file fix
iteration/file.)
○ -d Debug mode: shows all steps of the core logic.
By default only a subset of rules is enabled (around 100). You can enable more rules with the following
options:
○ -u Enable less safe rules. (Manual review's importance is more significant...) (Around ten rules.)
○ -g Enable rules to convert British English to US English. (These rules aren't exactly typos but
sometimes they can be useful.) (Around ten rules.)
○ -R Enable rare rules. (Few hundred rules.)
○ -V Enable very rare rules. (Mostly from the wikipedia article.) (More than four thousand rules.)
○ -D Enable rules based on lintian.debian.org ( git:ebac9a7, ~2300 )
The processing speed decreases as you activate more rules. But with newer greps this is much less
significant.
File filtering options:
○ -G Respect .gitignore files. (Requires executable git command.) (experimental)
○ -N Enable file name filtering. For example: -N '*.cpp' -N '*.h'
○ -i Walk through source code management system's internal directories. (do not ignore .git, .svn, .hg,
CVS)
○ -b Process binary, generated files. (do not ignore *.gif, *.jpg, *.jpeg, *.png, *.zip, *.svg, *.tiff,
*.gz, *.bz2, *.xz, *.rar, *.po, *.pdf, *.woff, yarn.lock, package-lock.json, composer.lock, *.mo,
*.mov, *.mp4, *.jar)
○ -m Disable file size checks. Default is to ignore files > 1MB. (usually csv, compressed JS, ..)
Whitelisting files/entries:
Misspell-fixer automatically ignores the issues matching to the patterns listed in .misspell-fixer.ignore
or .github/.misspell-fixer.ignore. The format of this file follows the prefiltering's temporary result
format:
^filename:line number:matched word
○ -W can be used to append the found issues instead of fixing them based on the other settings.
○ -w filename can be used to override the ignore file's name.
The ignore file is interpreted as a grep exclusion list. It is applied after the prefiltering step as a
set of grep expressions. So it is possible to exclude any prefixes or more specifically whole files with
keeping only their file names:
^filename
Or a directory:
^directory
The entries are listed/matched with the paths based on the current invocation. Reaching the same target
with a different path from the same working directory will not apply the whitelisted entries generated
from the other invocation. In directory x the whitelist entries generated with target . will not be
applied for target ../x, although they are the same. There is a workaround for this with manually editing
the whitelist to your needs. (Patches are welcome...)
Return values
Generally, the script tries to return with 0 if there were no typos or errors found/fixed.
○ 0 No typos found,
○ 1-5 Typos found. The return value shows the number of iterations executed.
○ 10 Help successfully printed.
○ 11 Whitelist successfully saved.
○ 100- Parameter errors. (invalid, missing, conflicting)
Sample usage
Without arguments, the script will not change anything and its output is minimal. Its return value can be
used to detect whether it found any typos or not.
$ misspell-fixer target
Fixing the files with displaying each fixed file:
$ misspell-fixer -rv target
Showing only the diffs without modifying the originals:
$ misspell-fixer -sv target
Showing the diffs with progress and fixing the found typos:
$ misspell-fixer -rsv target
Fast mode example, no backups: (highest performance)
$ misspell-fixer -frn target
The previous with all rules enabled:
$ misspell-fixer -frunRVD target
It is based on the following sources for common misspellings:
○ https://en.wikipedia.org/wiki/Commonly_misspelled_words
○ https://github.com/neleai/stylepp
○ https://en.wikipedia.org/wiki/Wikipedia:Lists_of_common_misspellings/For_machines
○ https://anonscm.debian.org/git/lintian/lintian.git/tree/data/spelling/corrections
○ http://www.how-do-you-spell.com/
○ http://www.wrongspelled.com/
With Docker
In some environments the dependencies may cause some trouble. (Mac, Windows, older linux versions.) In
this case, you can use misspell-fixer as a docker container image.
Pull the latest version:
$ docker pull vlajos/misspell-fixer
And fix targetdir's content:
$ docker run -ti --rm -v targetdir:/work vlajos/misspell-fixer -frunRVD .
General execution directly with docker:
$ docker run -ti --rm -v targetdir:/work vlajos/misspell-fixer [arguments]
targetdir becomes the current working directory in the container, so you can reference it as . in the
arguments list.
You can also use the dockered-fixer wrapper from the source repository:
$ dockered-fixer [arguments]
In case your shell supports functions, you can define a function to make the command a little shorter:
$ function misspell-fixer { docker run -ti --rm -v $(pwd):/work vlajos/misspell-fixer "$@"; }
And fixing with the function:
$ misspell-fixer [arguments]
Through the wrapper and the function, it can access only the folders below the current working directory
as it is the only one passed to the container as a volume.
You can build the container locally, although this should not be really needed:
$ docker build . -t misspell-fixer
With GitHub Actions
There's a GitHub Action https://github.com/sobolevn/misspell-fixer-action to run misspell-fixer as well.
It can even send PRs automatically with the fixes.
Dependencies -
The script itself is just a misspelling database and some glue in bash between grep and sed. grep's -F
combined with sed's line targeting makes the script quite efficient. -F enables parallel pattern matching
with the Aho–Corasick algorithm https://en.wikipedia.org/wiki/Aho%E2%80%93Corasick_algorithm .
Unfortunately only the newer (2.28+) versions of grep supports -w properly.
A little more comprehensive list:
○ bash
○ find
○ sed
○ grep
○ diff
○ sort
○ tee
○ cut
○ rm, cp, mv
○ xargs
○ git (for respecting .gitignore files)
○ ugrep (for significant speed up, optional)
Authors
○ Veres Lajos
○ ka7
Original source
https://github.com/vlajos/misspell-fixer
Feel free to use it!
January 2023 misspell-fixer()