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https://github.com/sbdchd/neoformat

:sparkles: A (Neo)vim plugin for formatting code.
https://github.com/sbdchd/neoformat
formatter neovim plugin vim
Last synced: about 2 months ago
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:sparkles: A (Neo)vim plugin for formatting code.
Host: GitHub
URL: https://github.com/sbdchd/neoformat
Owner: sbdchd
License: bsd-2-clause
Created: 2016-03-15T03:50:00.000Z (over 8 years ago)
Default Branch: master
Last Pushed: 2024-04-07T21:16:16.000Z (5 months ago)
Last Synced: 2024-04-12T12:06:43.909Z (5 months ago)
Topics: formatter, neovim, plugin, vim
Language: Vim Script
Homepage:
Size: 476 KB
Stars: 1,940
Watchers: 11
Forks: 185
Open Issues: 131
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
Awesome Lists containing this project

awesome-neovim - sbdchd/neoformat - A (Neo)vim plugin for formatting code. (Formatting / Comment)
awesome-gleam - sbdchd/neoformat - A Vim/Neovim plugin for formatting code with support for `gleam format`. (Editor support / Web applications)
README

        # Neoformat [![Build Status](https://travis-ci.org/sbdchd/neoformat.svg?branch=master)](https://travis-ci.org/sbdchd/neoformat)

A (Neo)vim plugin for formatting code.

Neoformat uses a variety of formatters for many filetypes. Currently, Neoformat

will run a formatter using the current buffer data, and on success it will

update the current buffer with the formatted text. On a formatter failure,

Neoformat will try the next formatter defined for the filetype.

By using `getbufline()` to read from the current buffer instead of file,

Neoformat is able to format your buffer without you having to `:w` your file first.

Also, by using `setline()`, marks, jumps, etc. are all maintained after formatting.

Neoformat supports both sending buffer data to formatters via stdin, and also

writing buffer data to `/tmp/` for formatters to read that do not support input

via stdin.

## Basic Usage

Format the entire buffer, or visual selection of the buffer

```viml

:Neoformat

```

Or specify a certain formatter (must be defined for the current filetype)

```viml

:Neoformat jsbeautify

```

Or format a visual selection of code in a different filetype

**Note:** you must use a ! and pass the filetype of the selection

```viml

:Neoformat! python

```

You can also pass a formatter to use

```viml

:Neoformat! python yapf

```

Or perhaps run a formatter on save

```viml

augroup fmt

  autocmd!

  autocmd BufWritePre * undojoin | Neoformat

augroup END

```

The `undojoin` command will put changes made by Neoformat into the same

`undo-block` with the latest preceding change. See

[Managing Undo History](#managing-undo-history).

## Install

The best way to install Neoformat is with your favorite plugin manager for Vim, such as [vim-plug](https://github.com/junegunn/vim-plug):

```viml

Plug 'sbdchd/neoformat'

```

## Current Limitation(s)

If a formatter is either not configured to use `stdin`, or is not able to read

from `stdin`, then buffer data will be written to a file in `/tmp/neoformat/`,

where the formatter will then read from

## Config [Optional]

Define custom formatters.

Options:

| name               | description                                                                                                                                                   | default | optional / required |

| ------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------- | ------------------- |

| `exe`              | the name the formatter executable in the path                                                                                                                 | n/a     | **required**        |

| `args`             | list of arguments                                                                                                                                             | \[]     | optional            |

| `replace`          | overwrite the file, instead of updating the buffer                                                                                                            | 0       | optional            |

| `stdin`            | send data to the stdin of the formatter                                                                                                                       | 0       | optional            |

| `stderr`           | capture stderr output from formatter                                                                                                                          | 0       | optional            |

| `no_append`        | do not append the `path` of the file to the formatter command, used when the `path` is in the middle of a command                                             | 0       | optional            |

| `env`              | list of environment variable definitions to be prepended to the formatter command                                                                             | \[]     | optional            |

| `valid_exit_codes` | list of valid exit codes for formatters who do not respect common unix practices                                                                              | \[0]    | optional            |

| `try_node_exe`     | attempt to find `exe` in a `node_modules/.bin` directory in the current working directory or one of its parents (requires setting `g:neoformat_try_node_exe`) | 0       | optional            |

Example:

```viml

let g:neoformat_python_autopep8 = {

            \ 'exe': 'autopep8',

            \ 'args': ['-s 4', '-E'],

            \ 'replace': 1, " replace the file, instead of updating buffer (default: 0)

            \ 'stdin': 1, " send data to stdin of formatter (default: 0)

            \ 'env': ["DEBUG=1"], " prepend environment variables to formatter command

            \ 'valid_exit_codes': [0, 23],

            \ 'no_append': 1,

            \ }

let g:neoformat_enabled_python = ['autopep8']

```

Configure enabled formatters.

```viml

let g:neoformat_enabled_python = ['autopep8', 'yapf', 'docformatter']

```

Have Neoformat use &formatprg as a formatter

```viml

let g:neoformat_try_formatprg = 1

```

Enable basic formatting when a filetype is not found. Disabled by default.

```viml

" Enable alignment

let g:neoformat_basic_format_align = 1

" Enable tab to spaces conversion

let g:neoformat_basic_format_retab = 1

" Enable trimmming of trailing whitespace

let g:neoformat_basic_format_trim = 1

```

Run all enabled formatters (by default Neoformat stops after the first formatter

succeeds)

```viml

let g:neoformat_run_all_formatters = 1

```

Above options can be activated or deactivated per buffer. For example:

```viml

    " runs all formatters for current buffer without tab to spaces conversion

    let b:neoformat_run_all_formatters = 1

    let b:neoformat_basic_format_retab = 0

```

Have Neoformat only msg when there is an error

```viml

let g:neoformat_only_msg_on_error = 1

```

When debugging, you can enable either of following variables for extra logging.

```viml

let g:neoformat_verbose = 1 " only affects the verbosity of Neoformat

" Or

let &verbose            = 1 " also increases verbosity of the editor as a whole

```

Have Neoformat look for a formatter executable in the `node_modules/.bin`

directory in the current working directory or one of its parents (only applies

to formatters with `try_node_exe` set to `1`):

```viml

let g:neoformat_try_node_exe = 1

```

## Adding a New Formatter

Note: you should replace everything `{{ }}` accordingly

1. Create a file in `autoload/neoformat/formatters/{{ filetype }}.vim` if it does not

   already exist for your filetype.

2. Follow the following format

See Config above for options

```viml

function! neoformat#formatters#{{ filetype }}#enabled() abort

    return ['{{ formatter name }}', '{{ other formatter name for filetype }}']

endfunction

function! neoformat#formatters#{{ filetype }}#{{ formatter name }}() abort

    return {

        \ 'exe': '{{ formatter name }}',

        \ 'args': ['-s 4', '-q'],

        \ 'stdin': 1

        \ }

endfunction

function! neoformat#formatters#{{ filetype }}#{{ other formatter name }}() abort

  return {'exe': {{ other formatter name }}

endfunction

```

## Managing Undo History

If you use an `autocmd` to run Neoformat on save, and you have your editor

configured to save automatically on `CursorHold` then you might run into

problems reverting changes. Pressing `u` will undo the last change made by

Neoformat instead of the change that you made yourself - and then Neoformat

will run again redoing the change that you just reverted. To avoid this

problem you can run Neoformat with the Vim `undojoin` command to put changes

made by Neoformat into the same `undo-block` with the preceding change. For

example:

```viml

augroup fmt

  autocmd!

  autocmd BufWritePre * undojoin | Neoformat

augroup END

```

When `undojoin` is used this way pressing `u` will "skip over" the Neoformat

changes - it will revert both the changes made by Neoformat and the change

that caused Neoformat to be invoked.

## Supported Filetypes

- Arduino

  - [`uncrustify`](http://uncrustify.sourceforge.net),

    [`clang-format`](http://clang.llvm.org/docs/ClangFormat.html),

    [`astyle`](http://astyle.sourceforge.net)

- Assembly

  - [`asmfmt`](https://github.com/klauspost/asmfmt)

- Astro

  - [`prettier`](https://github.com/withastro/prettier-plugin-astro/)

- Bazel

  - [`buildifier`](https://github.com/bazelbuild/buildtools/blob/master/buildifier/README.md)

- Beancount

  - [`bean-format`](https://beancount.github.io/docs/running_beancount_and_generating_reports.html#bean-format)

- Blade

  - [`blade-formatter`](https://github.com/shufo/blade-formatter)

- Bib

  - [bibtex-tidy](https://github.com/FlamingTempura/bibtex-tidy)

  - [bibclean](https://github.com/tobywf/bibclean)

- C

  - [`uncrustify`](http://uncrustify.sourceforge.net),

    [`clang-format`](http://clang.llvm.org/docs/ClangFormat.html),

    [`astyle`](http://astyle.sourceforge.net)

- C#

  - [`uncrustify`](http://uncrustify.sourceforge.net),

    [`astyle`](http://astyle.sourceforge.net),

    [`clang-format`](http://clang.llvm.org/docs/ClangFormat.html)

    [`csharpier`](https://csharpier.com/)

- C++

  - [`uncrustify`](http://uncrustify.sourceforge.net),

    [`clang-format`](http://clang.llvm.org/docs/ClangFormat.html),

    [`astyle`](http://astyle.sourceforge.net)

- Cabal

  - [`cabal-fmt`](https://github.com/phadej/cabal-fmt)

- Caddyfile

  - [`caddy fmt`](https://caddyserver.com/docs/command-line#caddy-fmt)

- CMake

  - [`cmake_format`](https://github.com/cheshirekow/cmake_format)

- Crystal

  - `crystal tool format` (ships with [`crystal`](http://crystal-lang.org))

- CSS

  - `css-beautify` (ships with [`js-beautify`](https://github.com/beautify-web/js-beautify)),

    [`prettydiff`](https://github.com/prettydiff/prettydiff),

    [`stylefmt`](https://github.com/morishitter/stylefmt),

    [`stylelint`](https://stylelint.io/),

    [`csscomb`](http://csscomb.com),

    [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier)

- CSV

  - [`prettydiff`](https://github.com/prettydiff/prettydiff)

- Cue

  - [`cue fmt`](https://cuelang.org/)

- D

  - [`uncrustify`](http://uncrustify.sourceforge.net),

    [`dfmt`](https://github.com/Hackerpilot/dfmt)

- D2

  - [`d2 fmt`](https://d2lang.com/tour/auto-formatter)

- Dart

  - [`dartfmt`](https://www.dartlang.org/tools/)

  - [`dart format`](https://dart.dev/tools/dart-format)

- Dhall

  - [`dhall format`](https://dhall-lang.org)

- dune

  - [`dune format`](https://github.com/ocaml/dune)

- Ebuild

  - [`shfmt`](https://github.com/mvdan/sh)

    ```vim

    let g:shfmt_opt="-ci"

    ```

- Elixir

  - [`mix format`](https://hexdocs.pm/mix/master/Mix.Tasks.Format.html)

- Elm

  - [`elm-format`](https://github.com/avh4/elm-format)

- Eruby

  - [`htmlbeautifier`](https://github.com/threedaymonk/htmlbeautifier)

- Erlang

  - [`erlfmt`](https://github.com/WhatsApp/erlfmt)

- Fennel

  - [`fnlfmt`](https://git.sr.ht/~technomancy/fnlfmt)

- Fish

  - [`fish_indent`](http://fishshell.com)

- Fortran

  - [`fprettify`](https://github.com/pseewald/fprettify)

- F#

  - [`fantomas`](https://github.com/fsprojects/fantomas)

- GDScript

  - [`gdformat`](https://github.com/Scony/godot-gdscript-toolkit)

- Gleam

  - [`gleam format`](https://github.com/gleam-lang/gleam/)

- Go

  - [`gofmt`](https://golang.org/cmd/gofmt/),

    [`goimports`](https://godoc.org/golang.org/x/tools/cmd/goimports),

    [`gofumpt`](https://github.com/mvdan/gofumpt),

    [`gofumports`](https://github.com/mvdan/gofumpt)

- GLSL

  - [`clang-format`](http://clang.llvm.org/docs/ClangFormat.html)

- GN

  - [`gn`](https://gn.googlesource.com/gn)

- GraphQL

  - [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier)

- Haskell

  - [`stylishhaskell`](https://github.com/jaspervdj/stylish-haskell),

    [`hindent`](https://github.com/chrisdone/hindent),

    [`hfmt`](https://github.com/danstiner/hfmt),

    [`brittany`](https://github.com/lspitzner/brittany),

    [`sortimports`](https://github.com/evanrelf/sort-imports),

    [`floskell`](https://github.com/ennocramer/floskell)

    [`ormolu`](https://github.com/tweag/ormolu)

    ```vim

    let g:ormolu_ghc_opt=["TypeApplications", "RankNTypes"]

    ```

  - You must use formatter's name without "`-`"

    ```vim

    " right

    let g:neoformat_enabled_haskell = ['sortimports', 'stylishhaskell']

    " wrong

    let g:neoformat_enabled_haskell = ['sort-imports', 'stylish-haskell']

    ```

- HCL

  - [`hclfmt`](https://github.com/hashicorp/hcl)

- Toml

  - [`taplo`](https://taplo.tamasfe.dev/cli/usage/formatting.html),

    [`topiary`](https://topiary.tweag.io)

- Puppet

  - [`puppet-lint`](https://github.com/rodjek/puppet-lint)

- PureScript

  - [`purs-tidy`](https://github.com/natefaubion/purescript-tidy)

  - [`purty`](https://gitlab.com/joneshf/purty)

- HTML

  - `html-beautify` (ships with [`js-beautify`](https://github.com/beautify-web/js-beautify)),

    [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier),

    [`prettydiff`](https://github.com/prettydiff/prettydiff)

- HTMLDjango

  - [djlint](https://djlint.com/)

- Jade

  - [`pug-beautifier`](https://github.com/vingorius/pug-beautifier)

- Java

  - [`uncrustify`](http://uncrustify.sourceforge.net),

    [`astyle`](http://astyle.sourceforge.net),

    [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier)

- JavaScript

  - [`js-beautify`](https://github.com/beautify-web/js-beautify),

    [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier),

    [`prettydiff`](https://github.com/prettydiff/prettydiff),

    [`clang-format`](http://clang.llvm.org/docs/ClangFormat.html),

    [`esformatter`](https://github.com/millermedeiros/esformatter/),

    [`prettier-eslint`](https://github.com/kentcdodds/prettier-eslint-cli),

    [`eslint_d`](https://github.com/mantoni/eslint_d.js),

    [`standard`](https://standardjs.com/),

    [`semistandard`](https://github.com/standard/semistandard),

    [`deno fmt`](https://deno.land/manual/tools/formatter),

    [`biome format`](https://biomejs.dev)

- JSON

  - [`js-beautify`](https://github.com/beautify-web/js-beautify),

    [`prettydiff`](https://github.com/prettydiff/prettydiff),

    [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier),

    [`jq`](https://stedolan.github.io/jq/),

    [`fixjson`](https://github.com/rhysd/fixjson),

    [`deno fmt`](https://deno.land/manual/tools/formatter),

    [`topiary`](https://topiary.tweag.io),

    [`biome format`](https://biomejs.dev)

- JSONC (JSON with comments)

  - [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier),

    [`deno fmt`](https://deno.land/manual/tools/formatter),

    [`biome format`](https://biomejs.dev)

- jsonnet

  - [`jsonnetfmt`](https://github.com/google/jsonnet)

- just

  - [`just`](https://github.com/casey/just)

- Kotlin

  - [`ktlint`](https://github.com/shyiko/ktlint),

    [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier)

- LaTeX

  - [`latexindent`](https://github.com/cmhughes/latexindent.pl)

    ```vim

    let g:latexindent_opt="-m"

    ```

- Less

  - [`csscomb`](http://csscomb.com),

    [`prettydiff`](https://github.com/prettydiff/prettydiff),

    [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier),

    [`stylelint`](https://stylelint.io/)

- Lua

  - [`luaformatter`](https://github.com/LuaDevelopmentTools/luaformatter)

  - [`lua-fmt`](https://github.com/trixnz/lua-fmt)

  - [`lua-format`](https://github.com/Koihik/LuaFormatter)

  - [`stylua`](https://github.com/JohnnyMorganz/StyLua)

- Markdown

  - [`remark`](https://github.com/wooorm/remark),

    [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier),

    [`deno fmt`](https://deno.land/manual/tools/formatter),

    [`mdformat`](https://github.com/executablebooks/mdformat)

- Matlab

  - [`matlab-formatter-vscode`](https://github.com/affenwiesel/matlab-formatter-vscode)

- Nginx

  - [nginxbeautifier](https://github.com/vasilevich/nginxbeautifier)

- Nickel

  - [`topiary`](https://topiary.tweag.io)

- Nim

  - `nimpretty` (ships with [`nim`](https://nim-lang.org/))

  - [`nph`](https://github.com/arnetheduck/nph)

- Nix

  - [`nixfmt`](https://github.com/serokell/nixfmt)

  - [`nixpkgs-fmt`](https://github.com/nix-community/nixpkgs-fmt)

  - [`alejandra`](https://github.com/kamadorueda/alejandra)

- Objective-C

  - [`uncrustify`](http://uncrustify.sourceforge.net),

    [`clang-format`](http://clang.llvm.org/docs/ClangFormat.html),

    [`astyle`](http://astyle.sourceforge.net)

- Objective-C++

  - [`uncrustify`](http://uncrustify.sourceforge.net),

    [`clang-format`](http://clang.llvm.org/docs/ClangFormat.html),

    [`astyle`](http://astyle.sourceforge.net)

- OCaml

  - [`ocp-indent`](http://www.typerex.org/ocp-indent.html),

    [`ocamlformat`](https://github.com/ocaml-ppx/ocamlformat),

    [`topiary`](https://topiary.tweag.io)

- OpenSCAD

  - [`openscad-format`](https://github.com/Maxattax97/openscad-format)

- Pandoc Markdown

  - [`pandoc`](https://pandoc.org/MANUAL.html)

- Pawn

  - [`uncrustify`](http://uncrustify.sourceforge.net)

- Perl

  - [`perltidy`](http://perltidy.sourceforge.net)

  - [`perlimports`](https://github.com/perl-ide/App-perlimports)

- PHP

  - [`php_beautifier`](http://pear.php.net/package/PHP_Beautifier),

    [`php-cs-fixer`](http://cs.sensiolabs.org/),

    [`phpcbf`](https://github.com/squizlabs/PHP_CodeSniffer),

    [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/plugin-php)

    [`laravel-pint`](https://github.com/laravel/pint),

- PowerShell

  - [`PSScriptAnalyzer`](https://github.com/PowerShell/PSScriptAnalyzer),

    [`PowerShell-Beautifier`](https://github.com/DTW-DanWard/PowerShell-Beautifier)

- Prisma

  - [`prettier`](https://github.com/umidbekk/prettier-plugin-prisma)

- Proto

  - [`clang-format`](http://clang.llvm.org/docs/ClangFormat.html)

- Pug (formally Jade)

  - [`pug-beautifier`](https://github.com/vingorius/pug-beautifier)

- Python

  - [`yapf`](https://github.com/google/yapf),

    [`autopep8`](https://github.com/hhatto/autopep8),

    [`black`](https://github.com/psf/black),

    [`pydevf`](https://github.com/fabioz/PyDev.Formatter),

    [`isort`](https://github.com/timothycrosley/isort),

    [`docformatter`](https://github.com/myint/docformatter),

    [`pyment`](https://github.com/dadadel/pyment),

    [`ruff`](https://github.com/astral-sh/ruff)

- R

  - [`styler`](https://github.com/r-lib/styler),

    [`formatR`](https://github.com/yihui/formatR)

- Reason

  - [`refmt`](https://github.com/facebook/reason)

  - [`bsrefmt`](https://github.com/bucklescript/bucklescript)

- Rego

  - [`opa fmt`](https://www.openpolicyagent.org/docs/latest/cli/#opa-fmt)

- Ruby

  - [`rufo`](https://github.com/ruby-formatter/rufo),

    [`ruby-beautify`](https://github.com/erniebrodeur/ruby-beautify),

    [`rubocop`](https://github.com/rubocop/rubocop),

    [`standard`](https://github.com/testdouble/standard)

    [`prettier`](https://github.com/prettier/plugin-ruby)

- Rust

  - [`rustfmt`](https://github.com/rust-lang-nursery/rustfmt),

    [`topiary`](https://topiary.tweag.io)

- Sass

  - [`sass-convert`](http://sass-lang.com/documentation/#executables),

    [`stylelint`](https://stylelint.io/),

    [`csscomb`](http://csscomb.com)

- Sbt

  - [`scalafmt`](http://scalameta.org/scalafmt/)

- Scala

  - [`scalariform`](https://github.com/scala-ide/scalariform),

    [`scalafmt`](http://scalameta.org/scalafmt/)

- SCSS

  - [`sass-convert`](http://sass-lang.com/documentation/#executables),

    [`stylelint`](https://stylelint.io/),

    [`stylefmt`](https://github.com/morishitter/stylefmt),

    [`prettydiff`](https://github.com/prettydiff/prettydiff),

    [`csscomb`](http://csscomb.com),

    [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier)

- Shell

  - [`shfmt`](https://github.com/mvdan/sh)

    ```vim

    let g:shfmt_opt="-ci"

    ```

  - [`topiary`](https://topiary.tweag.io)

- Solidity

  - [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier-solidity/prettier-plugin-solidity),

    [`forge fmt`](https://book.getfoundry.sh/)

- SQL

  - [`sqlfmt`](https://github.com/jackc/sqlfmt),

    `sqlformat` (ships with [sqlparse](https://github.com/andialbrecht/sqlparse)),

    `pg_format` (ships with [pgFormatter](https://github.com/darold/pgFormatter)),

    [`sleek`](https://github.com/nrempel/sleek)

- Starlark

  - [`buildifier`](https://github.com/bazelbuild/buildtools/blob/master/buildifier/README.md)

- SugarSS

  [`stylelint`](https://stylelint.io/)

- Svelte

  - [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier-plugin-svelte`](https://github.com/UnwrittenFun/prettier-plugin-svelte)

- Swift

  - [`Swiftformat`](https://github.com/nicklockwood/SwiftFormat)

- Terraform

  - [`terraform`](https://www.terraform.io/docs/commands/fmt.html),

- TypeScript

  - [`tsfmt`](https://github.com/vvakame/typescript-formatter),

    [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier),

    [`prettier-eslint`](https://github.com/kentcdodds/prettier-eslint-cli),

    [`tslint`](https://palantir.github.io/tslint),

    [`eslint_d`](https://github.com/mantoni/eslint_d.js),

    [`clang-format`](http://clang.llvm.org/docs/ClangFormat.html),

    [`deno fmt`](https://deno.land/manual/tools/formatter),

    [`biome format`](https://biomejs.dev)

- Typst

  - [`typstfmt`](https://github.com/astrale-sharp/typstfmt)

    [`typstyle`](https://github.com/Enter-tainer/typstyle)

- V

  - `v fmt` (ships with [`v`](https://vlang.io))

- VALA

  - [`uncrustify`](http://uncrustify.sourceforge.net)

- Vue

  - [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier)

- XHTML

  - [`tidy`](http://www.html-tidy.org),

    [`prettydiff`](https://github.com/prettydiff/prettydiff)

- XML

  - [`tidy`](http://www.html-tidy.org),

    [`prettydiff`](https://github.com/prettydiff/prettydiff),

    [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier),

    [`xmllint`](https://gitlab.gnome.org/GNOME/libxml2)

- YAML

  - [`pyaml`](https://pypi.python.org/pypi/pyaml),

    [`prettierd`](https://github.com/fsouza/prettierd),

    [`prettier`](https://github.com/prettier/prettier),

    [`yamlfmt`](https://github.com/mmlb/yamlfmt) (by @mmlb),

    [`yamlfmt`](https://github.com/google/yamlfmt) (by @google),

    [`yamlfix`](https://github.com/lyz-code/yamlfix)

- zig

  - [`zigformat`](https://github.com/Himujjal/zigformat)

    [`zig fmt`](https://github.com/ziglang/zig)

- zsh

  - [`shfmt`](https://github.com/mvdan/sh)

    ```vim

    let g:shfmt_opt="-ci"

    ```