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https://github.com/preservim/vim-litecorrect

Lightweight auto-correction for Vim
https://github.com/preservim/vim-litecorrect

prose spellcheck vim vim-plugin writing

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Lightweight auto-correction for Vim

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README 

        
# vim-litecorrect



> Lightweight auto-correction for Vim



We type `teh` when we meant to type `the`. This plugin is to help us catch

the most common of these typos and correct each upon hitting the space bar

(or non-keyword character.)



Features of this plugin:



* Focused on the most common of typos

* Pure Vimscript using the efficient `iabbrev`

* Included auto-correct entries limited to 350 (in 2016) to ensure fast

  loading (see expansion policy below)

* Buffer-scoped behavior (won’t touch global settings)



Note that this plugin is not intended to be a replacement for the spell

checker in Vim. It’s best used with spell-check enabled.



## Expansion policy



Since it was created in 2013, _litecorrect_ has limited the number of

default auto-correct entries (such as `teh`->`the`) to 300, avoiding the

excessive load times of comparable plugins and focusing on the most common

of typos.



Meanwhile, the adoption of new disk technologies reduces the penalty we

pay when initializing plugins. This provides _litecorrect_ an opportunity

to grow while not significantly impacting load-time performance.



Henceforth, _litecorrect_ will expand by up to 50 entries each year. For

2016 it will grow to 350 entries. For 2017, 400 entries, and so on.



## Requirements



May require a recent version of Vim.



## Installation



You can install _litecorrect_ using a Vim package manager, such as

[Vundle][vnd], [Plug][plg], or [Pathogen][pth]. If you are using a recent

verion of vim or neovim, you can also install using native package support.

(See [:help packages][packages].)



[vnd]: https://github.com/gmarik/Vundle.vim

[plg]: https://github.com/junegunn/vim-plug

[pth]: https://github.com/tpope/vim-pathogen

[packages]: https://vimhelp.org/repeat.txt.html#packages



## Configuration



Because you may not want auto-corrections in all file types you edit, you can

configure this plugin per file type. For example, to enable litecorrect support

in `markdown` and `textile` files, place in your `.vimrc`:



  ```vim

  set nocompatible

  filetype plugin on       " may already be in your .vimrc



  augroup litecorrect

    autocmd!

    autocmd FileType markdown,mkd call litecorrect#init()

    autocmd FileType textile call litecorrect#init()

  augroup END

  ```



Optionally, you can build on the defaults by providing your own corrections.

Note that the corrections are stored as key-value entries where the value is

a list of the common misspellings for the key.



  ```

  let user_dict = {

    \ 'maybe': ['mabye'],

    \ 'medieval': ['medival', 'mediaeval', 'medevil'],

    \ 'then': ['hten'],

    \ }

  augroup litecorrect

    autocmd!

    autocmd FileType markdown call litecorrect#init(user_dict)

    autocmd FileType textile call litecorrect#init(user_dict)

  augroup END

  ```



The corrections you provide will be in addition to the defaults. Where

there’s a conflict, your correction will prevail.



### Correct previous misspelling



To augment _litecorrect_ you may find the following key mapping useful.

It forces the top-ranked correction on the first misspelled word

before the cursor.



Add to your `.vimrc` with a key mapping of your choice:



```vim

nnoremap  [s1z=

inoremap  u[s1z=`]Au

```



It generates a fresh undo point prior to the correction so

that you can conveniently undo if necessary.



Note that _litecorrect_ does not map any keys.



### Typographic characters



By default, straight quotes will be used in corrections. For example:



```

Im -> I'm

shouldnt -> shouldn't

thats -> that's

```



If you prefer typographic (“curly”) quotes, install an educating quote plugin

like [vim-textobj-quote][qu] that will automatically transform straight quotes

to curly ones in your typing, including your corrections. For example:



```

I'm -> I’m

shouldn't -> shouldn’t

that's -> that’s

```



## Criteria to add (or modify) default entries



Note that the number of default entries will be limited for fast loading. See

policy above.



Suggestions for improving the defaults are welcome, but good evidence is needed

that a suggested auto-correct entry adds value to the list.



## Related projects



If load time performance isn’t an issue, you can seek a more comprehensive

approach:



* [wordlist.vim](https://github.com/vim-scripts/wordlist.vim) - nearly 800 entries

* [vim-autocorrect](https://github.com/panozzaj/vim-autocorrect) - over 12K entries!



An alternative that builds on [tpope/vim-abolish][va]:



* [vim-correction](https://github.com/jdelkins/vim-correction) - approx. 700 entries



[va]: https://github.com/tpope/vim-abolish



## See also



If you find this plugin useful, you may want to check out these others

originally by [@reedes][re]:



* [vim-colors-pencil][cp] - color scheme for Vim inspired by IA Writer

* [vim-lexical][lx] - building on Vim’s spell-check and thesaurus/dictionary completion

* [vim-pencil][pn] - rethinking Vim as a tool for writers

* [vim-textobj-quote][qu] - extends Vim to support typographic (‘curly’) quotes

* [vim-textobj-sentence][ts] - improving on Vim's native sentence motion command

* [vim-thematic][th] - modify Vim’s appearance to suit your task and environment

* [vim-wheel][wh] - screen-anchored cursor movement for Vim

* [vim-wordy][wo] - uncovering usage problems in writing

* [vim-wordchipper][wc] - power tool for shredding text in Insert mode



[re]: https://github.com/reedes

[cp]: https://github.com/preservim/vim-colors-pencil

[lx]: https://github.com/preservim/vim-lexical

[vo]: https://github.com/preservim/vim-one

[pn]: https://github.com/preservim/vim-pencil

[ts]: https://github.com/preservim/vim-textobj-sentence

[qu]: https://github.com/preservim/vim-textobj-quote

[th]: https://github.com/preservim/vim-thematic

[wh]: https://github.com/preservim/vim-wheel

[wo]: https://github.com/preservim/vim-wordy

[wc]: https://github.com/preservim/vim-wordchipper



## Future development



If you’ve spotted a problem or have an idea on improving this plugin,

please post it to the [GitHub project issue page][issues].



[issues]: https://github.com/preservim/vim-litecorrect/issues