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Lightweight yet powerful formatter plugin for Neovim

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conform.nvim

Lightweight yet powerful formatter plugin for Neovim

Requirements

Features

  • Preserves extmarks and folds - Most formatters replace the entire buffer, which clobbers extmarks and folds, and can cause the viewport and cursor to jump unexpectedly. Conform calculates minimal diffs and applies them using the built-in LSP format utilities.
  • Fixes bad-behaving LSP formatters - Some LSP servers are lazy and simply replace the entire buffer, leading to the problems mentioned above. Conform hooks into the LSP handler and turns these responses into proper piecewise changes.
  • Enables range formatting for all formatters - Since conform calculates minimal diffs, it can perform range formatting even if the underlying formatter doesn't support it.
  • Simple API - Conform exposes a simple, imperative API modeled after vim.lsp.buf.format().
  • Formats embedded code blocks - Can format code blocks inside markdown files or similar (see injected language formatting)

Installation

conform.nvim supports all the usual plugin managers

lazy.nvim 
{
  'stevearc/conform.nvim',
  opts = {},
}

For a more thorough configuration involving lazy-loading, see Lazy loading with lazy.nvim.

Packer 
require("packer").startup(function()
  use({
    "stevearc/conform.nvim",
    config = function()
      require("conform").setup()
    end,
  })
end)
Paq 
require("paq")({
  { "stevearc/conform.nvim" },
})
vim-plug 
Plug 'stevearc/conform.nvim'
dein 
call dein#add('stevearc/conform.nvim')
Pathogen 
git clone --depth=1 https://github.com/stevearc/conform.nvim.git ~/.vim/bundle/
Neovim native package 
git clone --depth=1 https://github.com/stevearc/conform.nvim.git \
  "${XDG_DATA_HOME:-$HOME/.local/share}"/nvim/site/pack/conform/start/conform.nvim

Setup

At a minimum, you will need to set up some formatters by filetype

require("conform").setup({
  formatters_by_ft = {
    lua = { "stylua" },
    -- Conform will run multiple formatters sequentially
    python = { "isort", "black" },
    -- You can customize some of the format options for the filetype (:help conform.format)
    rust = { "rustfmt", lsp_format = "fallback" },
    -- Conform will run the first available formatter
    javascript = { "prettierd", "prettier", stop_after_first = true },
  },
})

Then you can use conform.format() just like you would vim.lsp.buf.format(). For example, to format on save:

vim.api.nvim_create_autocmd("BufWritePre", {
  pattern = "*",
  callback = function(args)
    require("conform").format({ bufnr = args.buf })
  end,
})

As a shortcut, conform will optionally set up this format-on-save autocmd for you

require("conform").setup({
  format_on_save = {
    -- These options will be passed to conform.format()
    timeout_ms = 500,
    lsp_format = "fallback",
  },
})

See conform.format() for more details about the parameters.

Conform also provides a formatexpr, same as the LSP client:

vim.o.formatexpr = "v:lua.require'conform'.formatexpr()"

To view configured and available formatters, as well as to see the log file, run :ConformInfo

Formatters

You can view this list in vim with :help conform-formatters

Expand to see all formatters
  • alejandra - The Uncompromising Nix Code Formatter.
  • asmfmt - Go Assembler Formatter
  • ast-grep - A CLI tool for code structural search, lint and rewriting. Written in Rust.
  • astyle - A Free, Fast, and Small Automatic Formatter for C, C++, C++/CLI, Objective-C, C#, and Java Source Code.
  • auto_optional - Adds the Optional type-hint to arguments where the default value is None.
  • autocorrect - A linter and formatter to help you to improve copywriting, correct spaces, words, and punctuations between CJK.
  • autoflake - Removes unused imports and unused variables as reported by pyflakes.
  • autopep8 - A tool that automatically formats Python code to conform to the PEP 8 style guide.
  • awk - Format awk programs with awk
  • bean-format - Reformat Beancount files to right-align all the numbers at the same, minimal column.
  • beautysh - A Bash beautifier for the masses.
  • bibtex-tidy - Cleaner and Formatter for BibTeX files.
  • bicep - Bicep is a Domain Specific Language (DSL) for deploying Azure resources declaratively.
  • biome - A toolchain for web projects, aimed to provide functionalities to maintain them.
  • biome-check - A toolchain for web projects, aimed to provide functionalities to maintain them.
  • black - The uncompromising Python code formatter.
  • blade-formatter - An opinionated blade template formatter for Laravel that respects readability.
  • blue - The slightly less uncompromising Python code formatter.
  • bpfmt - Android Blueprint file formatter.
  • bsfmt - A code formatter for BrighterScript (and BrightScript).
  • buf - A new way of working with Protocol Buffers.
  • buildifier - buildifier is a tool for formatting bazel BUILD and .bzl files with a standard convention.
  • cabal_fmt - Format cabal files with cabal-fmt
  • caramel_fmt - Format Caramel code.
  • cbfmt - A tool to format codeblocks inside markdown and org documents.
  • clang-format - Tool to format C/C++/… code according to a set of rules and heuristics.
  • cljfmt - cljfmt is a tool for detecting and fixing formatting errors in Clojure code
  • cljstyle - Formatter for Clojure code.
  • cmake_format - Parse cmake listfiles and format them nicely.
  • codespell - Check code for common misspellings.
  • crlfmt - Formatter for CockroachDB's additions to the Go style guide.
  • crystal - Format Crystal code.
  • csharpier - The opinionated C# code formatter.
  • cue_fmt - Format CUE files using cue fmt command.
  • d2 - D2 is a modern diagram scripting language that turns text to diagrams.
  • darker - Run black only on changed lines.
  • dart_format - Replace the whitespace in your program with formatting that follows Dart guidelines.
  • dcm_fix - Fixes issues produced by dcm analyze, dcm check-unused-code or dcm check-dependencies commands.
  • dcm_format - Formats .dart files.
  • deno_fmt - Use Deno to format TypeScript, JavaScript/JSON and markdown.
  • dfmt - Formatter for D source code.
  • djlint - ✨ HTML Template Linter and Formatter. Django - Jinja - Nunjucks - Handlebars - GoLang.
  • docformatter - docformatter automatically formats docstrings to follow a subset of the PEP 257 conventions.
  • docstrfmt - reStructuredText formatter.
  • doctoc - Generates table of contents for markdown files inside local git repository.
  • dprint - Pluggable and configurable code formatting platform written in Rust.
  • easy-coding-standard - ecs - Use Coding Standard with 0-knowledge of PHP-CS-Fixer and PHP_CodeSniffer.
  • efmt - Erlang code formatter.
  • elm_format - elm-format formats Elm source code according to a standard set of rules based on the official Elm Style Guide.
  • erb_format - Format ERB files with speed and precision.
  • erlfmt - An automated code formatter for Erlang.
  • eslint_d - Like ESLint, but faster.
  • fantomas - F# source code formatter.
  • findent - Indent, relabel and convert Fortran sources.
  • fish_indent - Indent or otherwise prettify a piece of fish code.
  • fixjson - JSON Fixer for Humans using (relaxed) JSON5.
  • fnlfmt - A formatter for Fennel code.
  • forge_fmt - Forge is a command-line tool that ships with Foundry. Forge tests, builds, and deploys your smart contracts.
  • format-queries - Tree-sitter query formatter.
  • fourmolu - A fork of ormolu that uses four space indentation and allows arbitrary configuration.
  • fprettify - Auto-formatter for modern fortran source code.
  • gci - GCI, a tool that controls Go package import order and makes it always deterministic.
  • gdformat - A formatter for Godot's gdscript.
  • gersemi - A formatter to make your CMake code the real treasure.
  • gleam - ⭐️ A friendly language for building type-safe, scalable systems!
  • gluon_fmt - Code formatting for the gluon programming language.
  • gn - gn build system.
  • gofmt - Formats go programs.
  • gofumpt - Enforce a stricter format than gofmt, while being backwards compatible. That is, gofumpt is happy with a subset of the formats that gofmt is happy with.
  • goimports - Updates your Go import lines, adding missing ones and removing unreferenced ones.
  • goimports-reviser - Right imports sorting & code formatting tool (goimports alternative).
  • golines - A golang formatter that fixes long lines.
  • google-java-format - Reformats Java source code according to Google Java Style.
  • grain_format - Code formatter for the grain programming language.
  • hcl - A formatter for HCL files.
  • hindent - Haskell pretty printer.
  • htmlbeautifier - A normaliser/beautifier for HTML that also understands embedded Ruby. Ideal for tidying up Rails templates.
  • imba_fmt - Code formatter for the Imba programming language.
  • indent - GNU Indent.
  • injected - Format treesitter injected languages.
  • inko - A language for building concurrent software with confidence
  • isort - Python utility / library to sort imports alphabetically and automatically separate them into sections and by type.
  • joker - Small Clojure interpreter, linter and formatter.
  • jq - Command-line JSON processor.
  • jsonnetfmt - jsonnetfmt is a command line tool to format jsonnet files.
  • just - Format Justfile.
  • kcl - The KCL Format tool modifies the files according to the KCL code style.
  • ktfmt - Reformats Kotlin source code to comply with the common community standard conventions.
  • ktlint - An anti-bikeshedding Kotlin linter with built-in formatter.
  • latexindent - A perl script for formatting LaTeX files that is generally included in major TeX distributions.
  • leptosfmt - A formatter for the Leptos view! macro.
  • liquidsoap-prettier - A binary to format Liquidsoap scripts
  • llf - A LaTeX reformatter / beautifier.
  • lua-format - Code formatter for Lua.
  • markdown-toc - API and CLI for generating a markdown TOC (table of contents) for a README or any markdown files.
  • markdownlint - A Node.js style checker and lint tool for Markdown/CommonMark files.
  • markdownlint-cli2 - A fast, flexible, configuration-based command-line interface for linting Markdown/CommonMark files with the markdownlint library.
  • mdformat - An opinionated Markdown formatter.
  • mdsf - Format markdown code blocks using your favorite code formatters.
  • mdslw - Prepare your markdown for easy diff'ing by adding line breaks after every sentence.
  • mix - Format Elixir files using the mix format command.
  • nickel - Code formatter for the Nickel programming language.
  • nimpretty - nimpretty is a Nim source code beautifier that follows the official style guide.
  • nixfmt - nixfmt is a formatter for Nix code, intended to apply a uniform style.
  • nixpkgs_fmt - nixpkgs-fmt is a Nix code formatter for nixpkgs.
  • npm-groovy-lint - Lint, format and auto-fix your Groovy / Jenkinsfile / Gradle files using command line.
  • ocamlformat - Auto-formatter for OCaml code.
  • ocp-indent - Automatic indentation of OCaml source files.
  • opa_fmt - Format Rego files using opa fmt command.
  • ormolu - A formatter for Haskell source code.
  • packer_fmt - The packer fmt Packer command is used to format HCL2 configuration files to a canonical format and style.
  • pangu - Insert whitespace between CJK and half-width characters.
  • perlimports - Make implicit Perl imports explicit.
  • perltidy - Perl::Tidy, a source code formatter for Perl.
  • pg_format - PostgreSQL SQL syntax beautifier.
  • php_cs_fixer - The PHP Coding Standards Fixer.
  • phpcbf - PHP Code Beautifier and Fixer fixes violations of a defined coding standard.
  • phpinsights - The perfect starting point to analyze the code quality of your PHP projects.
  • pint - Laravel Pint is an opinionated PHP code style fixer for minimalists.
  • prettier - Prettier is an opinionated code formatter. It enforces a consistent style by parsing your code and re-printing it with its own rules that take the maximum line length into account, wrapping code when necessary.
  • prettierd - prettier, as a daemon, for ludicrous formatting speed.
  • pretty-php - The opinionated PHP code formatter.
  • puppet-lint - Check that your Puppet manifests conform to the style guide.
  • purs-tidy - A syntax tidy-upper for PureScript.
  • pyink - A Python formatter, forked from Black with a few different formatting behaviors.
  • reorder-python-imports - Rewrites source to reorder python imports
  • rescript-format - The built-in ReScript formatter.
  • roc - A fast, friendly, functional language.
  • rstfmt - A formatter for reStructuredText.
  • rubocop - Ruby static code analyzer and formatter, based on the community Ruby style guide.
  • rubyfmt - Ruby Autoformatter! (Written in Rust)
  • ruff_fix - An extremely fast Python linter, written in Rust. Fix lint errors.
  • ruff_format - An extremely fast Python linter, written in Rust. Formatter subcommand.
  • ruff_organize_imports - An extremely fast Python linter, written in Rust. Organize imports.
  • rufo - Rufo is an opinionated ruby formatter.
  • rustfmt - A tool for formatting rust code according to style guidelines.
  • rustywind - A tool for formatting Tailwind CSS classes.
  • scalafmt - Code formatter for Scala.
  • shellcheck - A static analysis tool for shell scripts.
  • shellharden - The corrective bash syntax highlighter.
  • shfmt - A shell parser, formatter, and interpreter with bash support.
  • sleek - Sleek is a CLI tool for formatting SQL.
  • smlfmt - A custom parser and code formatter for Standard ML.
  • snakefmt - a formatting tool for Snakemake files following the design of Black.
  • sql_formatter - A whitespace formatter for different query languages.
  • sqlfluff - A modular SQL linter and auto-formatter with support for multiple dialects and templated code.
  • sqlfmt - sqlfmt formats your dbt SQL files so you don't have to. It is similar in nature to Black, gofmt, and rustfmt (but for SQL)
  • squeeze_blanks - Squeeze repeated blank lines into a single blank line via cat -s.
  • standardjs - JavaScript Standard style guide, linter, and formatter.
  • standardrb - Ruby's bikeshed-proof linter and formatter.
  • stylelint - A mighty CSS linter that helps you avoid errors and enforce conventions.
  • styler - R formatter and linter.
  • stylish-haskell - Haskell code prettifier.
  • stylua - An opinionated code formatter for Lua.
  • swift_format - Swift formatter from apple. Requires building from source with swift build.
  • swiftformat - SwiftFormat is a code library and command-line tool for reformatting swift code on macOS or Linux.
  • swiftlint - A tool to enforce Swift style and conventions.
  • taplo - A TOML toolkit written in Rust.
  • templ - Formats templ template files.
  • terraform_fmt - The terraform-fmt command rewrites terraform configuration files to a canonical format and style.
  • terragrunt_hclfmt - Format hcl files into a canonical format.
  • tlint - Tighten linter for Laravel conventions with support for auto-formatting.
  • tofu_fmt - The tofu-fmt command rewrites OpenTofu configuration files to a canonical format and style.
  • trim_newlines - Trim empty lines at the end of the file.
  • trim_whitespace - Trim trailing whitespace.
  • twig-cs-fixer - Automatically fix Twig Coding Standards issues
  • typos - Source code spell checker
  • typstyle - Beautiful and reliable typst code formatter.
  • uncrustify - A source code beautifier for C, C++, C#, ObjectiveC, D, Java, Pawn and Vala.
  • usort - Safe, minimal import sorting for Python projects.
  • verible - The SystemVerilog formatter.
  • vsg - Style guide enforcement for VHDL.
  • xmlformat - xmlformatter is an Open Source Python package, which provides formatting of XML documents.
  • xmllint - Despite the name, xmllint can be used to format XML files as well as lint them.
  • yamlfix - A configurable YAML formatter that keeps comments.
  • yamlfmt - yamlfmt is an extensible command line tool or library to format yaml files.
  • yapf - Yet Another Python Formatter.
  • yew-fmt - Code formatter for the Yew framework.
  • yq - YAML/JSON processor
  • zigfmt - Reformat Zig source into canonical form.
  • zprint - Formatter for Clojure and EDN.

Customizing formatters

You can override/add to the default values of formatters

require("conform").setup({
  formatters = {
    yamlfix = {
      -- Change where to find the command
      command = "local/path/yamlfix",
      -- Adds environment args to the yamlfix formatter
      env = {
        YAMLFIX_SEQUENCE_STYLE = "block_style",
      },
    },
  },
})

-- These can also be set directly
require("conform").formatters.yamlfix = {
  env = {
    YAMLFIX_SEQUENCE_STYLE = "block_style",
  },
}

-- This can also be a function that returns the config,
-- which can be useful if you're doing lazy loading
require("conform").formatters.yamlfix = function(bufnr)
  return {
    command = require("conform.util").find_executable({
      "local/path/yamlfix",
    }, "yamlfix"),
  }
end

In addition to being able to override any of the original properties on the formatter, there is another property for easily adding additional arguments to the format command

require("conform").formatters.shfmt = {
  prepend_args = { "-i", "2" },
  -- The base args are { "-filename", "$FILENAME" } so the final args will be
  -- { "-i", "2", "-filename", "$FILENAME" }
}
-- prepend_args can be a function, just like args
require("conform").formatters.shfmt = {
  prepend_args = function(self, ctx)
    return { "-i", "2" }
  end,
}

If you want to overwrite the entire formatter definition and not merge with the default values, pass inherit = false. This is also the default behavior if there is no built-in formatter with the given name, which can be used to add your own custom formatters.

require("conform").formatters.shfmt = {
  inherit = false,
  command = "shfmt",
  args = { "-i", "2", "-filename", "$FILENAME" },
}

Recipes

Advanced topics

Options

A complete list of all configuration options

require("conform").setup({
  -- Map of filetype to formatters
  formatters_by_ft = {
    lua = { "stylua" },
    -- Conform will run multiple formatters sequentially
    go = { "goimports", "gofmt" },
    -- You can also customize some of the format options for the filetype
    rust = { "rustfmt", lsp_format = "fallback" },
    -- You can use a function here to determine the formatters dynamically
    python = function(bufnr)
      if require("conform").get_formatter_info("ruff_format", bufnr).available then
        return { "ruff_format" }
      else
        return { "isort", "black" }
      end
    end,
    -- Use the "*" filetype to run formatters on all filetypes.
    ["*"] = { "codespell" },
    -- Use the "_" filetype to run formatters on filetypes that don't
    -- have other formatters configured.
    ["_"] = { "trim_whitespace" },
  },
  -- Set this to change the default values when calling conform.format()
  -- This will also affect the default values for format_on_save/format_after_save
  default_format_opts = {
    lsp_format = "fallback",
  },
  -- If this is set, Conform will run the formatter on save.
  -- It will pass the table to conform.format().
  -- This can also be a function that returns the table.
  format_on_save = {
    -- I recommend these options. See :help conform.format for details.
    lsp_format = "fallback",
    timeout_ms = 500,
  },
  -- If this is set, Conform will run the formatter asynchronously after save.
  -- It will pass the table to conform.format().
  -- This can also be a function that returns the table.
  format_after_save = {
    lsp_format = "fallback",
  },
  -- Set the log level. Use `:ConformInfo` to see the location of the log file.
  log_level = vim.log.levels.ERROR,
  -- Conform will notify you when a formatter errors
  notify_on_error = true,
  -- Conform will notify you when no formatters are available for the buffer
  notify_no_formatters = true,
  -- Custom formatters and overrides for built-in formatters
  formatters = {
    my_formatter = {
      -- This can be a string or a function that returns a string.
      -- When defining a new formatter, this is the only field that is required
      command = "my_cmd",
      -- A list of strings, or a function that returns a list of strings
      -- Return a single string instead of a list to run the command in a shell
      args = { "--stdin-from-filename", "$FILENAME" },
      -- If the formatter supports range formatting, create the range arguments here
      range_args = function(self, ctx)
        return { "--line-start", ctx.range.start[1], "--line-end", ctx.range["end"][1] }
      end,
      -- Send file contents to stdin, read new contents from stdout (default true)
      -- When false, will create a temp file (will appear in "$FILENAME" args). The temp
      -- file is assumed to be modified in-place by the format command.
      stdin = true,
      -- A function that calculates the directory to run the command in
      cwd = require("conform.util").root_file({ ".editorconfig", "package.json" }),
      -- When cwd is not found, don't run the formatter (default false)
      require_cwd = true,
      -- When stdin=false, use this template to generate the temporary file that gets formatted
      tmpfile_format = ".conform.$RANDOM.$FILENAME",
      -- When returns false, the formatter will not be used
      condition = function(self, ctx)
        return vim.fs.basename(ctx.filename) ~= "README.md"
      end,
      -- Exit codes that indicate success (default { 0 })
      exit_codes = { 0, 1 },
      -- Environment variables. This can also be a function that returns a table.
      env = {
        VAR = "value",
      },
      -- Set to false to disable merging the config with the base definition
      inherit = true,
      -- When inherit = true, add these additional arguments to the beginning of the command.
      -- This can also be a function, like args
      prepend_args = { "--use-tabs" },
      -- When inherit = true, add these additional arguments to the end of the command.
      -- This can also be a function, like args
      append_args = { "--trailing-comma" },
    },
    -- These can also be a function that returns the formatter
    other_formatter = function(bufnr)
      return {
        command = "my_cmd",
      }
    end,
  },
})

-- You can set formatters_by_ft and formatters directly
require("conform").formatters_by_ft.lua = { "stylua" }
require("conform").formatters.my_formatter = {
  command = "my_cmd",
}

Formatter options

API

setup(opts)

setup(opts)

Param Type Desc
opts nil|conform.setupOpts
formatters_by_ft nil|table<string, conform.FiletypeFormatter> Map of filetype to formatters
format_on_save nil|conform.FormatOpts|fun(bufnr: integer): nil|conform.FormatOpts If this is set, Conform will run the formatter on save. It will pass the table to conform.format(). This can also be a function that returns the table.
default_format_opts nil|conform.DefaultFormatOpts The default options to use when calling conform.format()
format_after_save nil|conform.FormatOpts|fun(bufnr: integer): nil|conform.FormatOpts If this is set, Conform will run the formatter asynchronously after save. It will pass the table to conform.format(). This can also be a function that returns the table.
log_level nil|integer Set the log level (e.g. vim.log.levels.DEBUG). Use :ConformInfo to see the location of the log file.
notify_on_error nil|boolean Conform will notify you when a formatter errors (default true).
notify_no_formatters nil|boolean Conform will notify you when no formatters are available for the buffer (default true).
formatters nil|table<string, conform.FormatterConfigOverride|fun(bufnr: integer): nil|conform.FormatterConfigOverride> Custom formatters and overrides for built-in formatters.

format(opts, callback)

format(opts, callback): boolean
Format a buffer

Param Type Desc
opts nil|conform.FormatOpts
timeout_ms nil|integer Time in milliseconds to block for formatting. Defaults to 1000. No effect if async = true.
bufnr nil|integer Format this buffer (default 0)
async nil|boolean If true the method won't block. Defaults to false. If the buffer is modified before the formatter completes, the formatting will be discarded.
dry_run nil|boolean If true don't apply formatting changes to the buffer
undojoin nil|boolean Use undojoin to merge formatting changes with previous edit (default false)
formatters nil|string[] List of formatters to run. Defaults to all formatters for the buffer filetype.
lsp_format nil|conform.LspFormatOpts Configure if and when LSP should be used for formatting. Defaults to "never".
> "never" never use the LSP for formatting (default)
> "fallback" LSP formatting is used when no other formatters are available
> "prefer" use only LSP formatting when available
> "first" LSP formatting is used when available and then other formatters
> "last" other formatters are used then LSP formatting when available
stop_after_first nil|boolean Only run the first available formatter in the list. Defaults to false.
quiet nil|boolean Don't show any notifications for warnings or failures. Defaults to false.
range nil|conform.Range Range to format. Table must contain start and end keys with {row, col} tuples using (1,0) indexing. Defaults to current selection in visual mode
id nil|integer Passed to vim.lsp.buf.format when using LSP formatting
name nil|string Passed to vim.lsp.buf.format when using LSP formatting
filter nil|fun(client: table): boolean Passed to vim.lsp.buf.format when using LSP formatting
callback nil|fun(err: nil|string, did_edit: nil|boolean) Called once formatting has completed

Returns:

Type Desc
boolean True if any formatters were attempted

list_formatters(bufnr)

list_formatters(bufnr): conform.FormatterInfo[]
Retrieve the available formatters for a buffer

Param Type Desc
bufnr nil|integer

list_formatters_to_run(bufnr)

list_formatters_to_run(bufnr): conform.FormatterInfo[], boolean
Get the exact formatters that will be run for a buffer.

Param Type Desc
bufnr nil|integer

Returns:

Type Desc
conform.FormatterInfo[]
boolean lsp Will use LSP formatter

Note:

This accounts for stop_after_first, lsp fallback logic, etc.

list_all_formatters()

list_all_formatters(): conform.FormatterInfo[]
List information about all filetype-configured formatters

get_formatter_info(formatter, bufnr)

get_formatter_info(formatter, bufnr): conform.FormatterInfo
Get information about a formatter (including availability)

Param Type Desc
formatter string The name of the formatter
bufnr nil|integer

Acknowledgements

Thanks to

  • nvim-lint for providing inspiration for the config and API. It's an excellent plugin that balances power and simplicity.
  • null-ls for formatter configurations and being my formatter/linter of choice for a long time.

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Lightweight yet powerful formatter plugin for Neovim

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