<!DOCTYPE HTML>
< html lang = "en" class = "sidebar-visible no-js colibri" >
< head >
<!-- Book generated using mdBook -->
< meta charset = "UTF-8" >
< title > < / title >
< meta name = "robots" content = "noindex" / >
<!-- Custom HTML head -->
< meta content = "text/html; charset=utf-8" http-equiv = "Content-Type" >
< meta name = "description" content = "" >
< meta name = "viewport" content = "width=device-width, initial-scale=1" >
< meta name = "theme-color" content = "#ffffff" / >
< link rel = "icon" href = "favicon.svg" >
< link rel = "shortcut icon" href = "favicon.png" >
< link rel = "stylesheet" href = "css/variables.css" >
< link rel = "stylesheet" href = "css/general.css" >
< link rel = "stylesheet" href = "css/chrome.css" >
< link rel = "stylesheet" href = "css/print.css" media = "print" >
<!-- Fonts -->
< link rel = "stylesheet" href = "FontAwesome/css/font-awesome.css" >
< link rel = "preconnect" href = "https://fonts.gstatic.com" >
< link href = "https://fonts.googleapis.com/css2?family=Inter:wght@200;400;500;700&display=swap" rel = "stylesheet" >
< link rel = "stylesheet" href = "fonts/fonts.css" >
<!-- Highlight.js Stylesheets -->
< link rel = "stylesheet" href = "highlight.css" >
< link rel = "stylesheet" href = "tomorrow-night.css" >
< link rel = "stylesheet" href = "ayu-highlight.css" >
<!-- Custom theme stylesheets -->
< / head >
< body >
<!-- Provide site root to javascript -->
< script type = "text/javascript" >
var path_to_root = "";
var default_theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? "colibri" : "colibri";
< / script >
<!-- Work around some values being stored in localStorage wrapped in quotes -->
< script type = "text/javascript" >
try {
var theme = localStorage.getItem('mdbook-theme');
var sidebar = localStorage.getItem('mdbook-sidebar');
if (theme.startsWith('"') & & theme.endsWith('"')) {
localStorage.setItem('mdbook-theme', theme.slice(1, theme.length - 1));
}
if (sidebar.startsWith('"') & & sidebar.endsWith('"')) {
localStorage.setItem('mdbook-sidebar', sidebar.slice(1, sidebar.length - 1));
}
} catch (e) { }
< / script >
<!-- Set the theme before any content is loaded, prevents flash -->
< script type = "text/javascript" >
var theme;
try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
if (theme === null || theme === undefined) { theme = default_theme; }
var html = document.querySelector('html');
html.classList.remove('no-js')
html.classList.remove('colibri')
html.classList.add(theme);
html.classList.add('js');
< / script >
<!-- Hide / unhide sidebar before it is displayed -->
< script type = "text/javascript" >
var html = document.querySelector('html');
var sidebar = 'hidden';
if (document.body.clientWidth >= 1080) {
try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
sidebar = sidebar || 'visible';
}
html.classList.remove('sidebar-visible');
html.classList.add("sidebar-" + sidebar);
< / script >
< nav id = "sidebar" class = "sidebar" aria-label = "Table of contents" >
< div class = "sidebar-scrollbox" >
< ol class = "chapter" > < li class = "chapter-item expanded " > < a href = "install.html" > < strong aria-hidden = "true" > 1.< / strong > Installation< / a > < / li > < li class = "chapter-item expanded " > < a href = "usage.html" > < strong aria-hidden = "true" > 2.< / strong > Usage< / a > < / li > < li class = "chapter-item expanded " > < a href = "from-vim.html" > < strong aria-hidden = "true" > 3.< / strong > Migrating from Vim< / a > < / li > < li class = "chapter-item expanded " > < a href = "configuration.html" > < strong aria-hidden = "true" > 4.< / strong > Configuration< / a > < / li > < li > < ol class = "section" > < li class = "chapter-item expanded " > < a href = "themes.html" > < strong aria-hidden = "true" > 4.1.< / strong > Themes< / a > < / li > < li class = "chapter-item expanded " > < a href = "keymap.html" > < strong aria-hidden = "true" > 4.2.< / strong > Keymap< / a > < / li > < li class = "chapter-item expanded " > < a href = "remapping.html" > < strong aria-hidden = "true" > 4.3.< / strong > Key Remapping< / a > < / li > < li class = "chapter-item expanded " > < a href = "hooks.html" > < strong aria-hidden = "true" > 4.4.< / strong > Hooks< / a > < / li > < / ol > < / li > < li class = "chapter-item expanded " > < a href = "guides/index.html" > < strong aria-hidden = "true" > 5.< / strong > Guides< / a > < / li > < li > < ol class = "section" > < li class = "chapter-item expanded " > < a href = "guides/textobject.html" > < strong aria-hidden = "true" > 5.1.< / strong > Adding Textobject Queries< / a > < / li > < / ol > < / li > < / ol >
< / div >
< div id = "sidebar-resize-handle" class = "sidebar-resize-handle" > < / div >
< / nav >
< div id = "page-wrapper" class = "page-wrapper" >
< div class = "page" >
< div id = "menu-bar-hover-placeholder" > < / div >
< div id = "menu-bar" class = "menu-bar sticky bordered" >
< div class = "left-buttons" >
< button id = "sidebar-toggle" class = "icon-button" type = "button" title = "Toggle Table of Contents" aria-label = "Toggle Table of Contents" aria-controls = "sidebar" >
< i class = "fa fa-bars" > < / i >
< / button >
< button id = "theme-toggle" class = "icon-button" type = "button" title = "Change theme" aria-label = "Change theme" aria-haspopup = "true" aria-expanded = "false" aria-controls = "theme-list" >
< i class = "fa fa-paint-brush" > < / i >
< / button >
< ul id = "theme-list" class = "theme-popup" aria-label = "Themes" role = "menu" >
< li role = "none" > < button role = "menuitem" class = "theme" id = "light" > Light< / button > < / li >
< li role = "none" > < button role = "menuitem" class = "theme" id = "rust" > Rust< / button > < / li >
< li role = "none" > < button role = "menuitem" class = "theme" id = "coal" > Coal< / button > < / li >
< li role = "none" > < button role = "menuitem" class = "theme" id = "navy" > Navy< / button > < / li >
< li role = "none" > < button role = "menuitem" class = "theme" id = "ayu" > Ayu< / button > < / li >
< li role = "none" > < button role = "menuitem" class = "theme" id = "colibri" > Colibri (default)< / button > < / li >
< / ul >
< button id = "search-toggle" class = "icon-button" type = "button" title = "Search. (Shortkey: s)" aria-label = "Toggle Searchbar" aria-expanded = "false" aria-keyshortcuts = "S" aria-controls = "searchbar" >
< i class = "fa fa-search" > < / i >
< / button >
< / div >
< h1 class = "menu-title" > < / h1 >
< div class = "right-buttons" >
< a href = "print.html" title = "Print this book" aria-label = "Print this book" >
< i id = "print-button" class = "fa fa-print" > < / i >
< / a >
< / div >
< / div >
< div id = "search-wrapper" class = "hidden" >
< form id = "searchbar-outer" class = "searchbar-outer" >
< input type = "search" name = "search" id = "searchbar" name = "searchbar" placeholder = "Search this book ..." aria-controls = "searchresults-outer" aria-describedby = "searchresults-header" >
< / form >
< div id = "searchresults-outer" class = "searchresults-outer hidden" >
< div id = "searchresults-header" class = "searchresults-header" > < / div >
< ul id = "searchresults" >
< / ul >
< / div >
< / div >
<!-- Apply ARIA attributes after the sidebar and the sidebar toggle button are added to the DOM -->
< script type = "text/javascript" >
document.getElementById('sidebar-toggle').setAttribute('aria-expanded', sidebar === 'visible');
document.getElementById('sidebar').setAttribute('aria-hidden', sidebar !== 'visible');
Array.from(document.querySelectorAll('#sidebar a')).forEach(function(link) {
link.setAttribute('tabIndex', sidebar === 'visible' ? 0 : -1);
});
< / script >
< div id = "content" class = "content" >
< main >
< h1 id = "installation" > < a class = "header" href = "#installation" > Installation< / a > < / h1 >
< p > We provide pre-built binaries on the < a href = "https://github.com/helix-editor/helix/releases" > GitHub Releases page< / a > .< / p >
< p > < a href = "https://repology.org/project/helix/versions" > < img src = "https://repology.org/badge/vertical-allrepos/helix.svg" alt = "Packaging status" / > < / a > < / p >
< h2 id = "osx" > < a class = "header" href = "#osx" > OSX< / a > < / h2 >
< p > A Homebrew tap is available:< / p >
< pre > < code > brew tap helix-editor/helix
brew install helix
< / code > < / pre >
< h2 id = "linux" > < a class = "header" href = "#linux" > Linux< / a > < / h2 >
< h3 id = "nixos" > < a class = "header" href = "#nixos" > NixOS< / a > < / h3 >
< p > A < a href = "https://nixos.wiki/wiki/Flakes" > flake< / a > containing the package is available in
the project root. The flake can also be used to spin up a reproducible development
shell for working on Helix.< / p >
< h3 id = "arch-linux" > < a class = "header" href = "#arch-linux" > Arch Linux< / a > < / h3 >
< p > Releases are available in the < code > community< / code > repository.< / p >
< p > Packages are also available on AUR:< / p >
< ul >
< li > < a href = "https://aur.archlinux.org/packages/helix-bin/" > helix-bin< / a > contains the pre-built release< / li >
< li > < a href = "https://aur.archlinux.org/packages/helix-git/" > helix-git< / a > builds the master branch< / li >
< / ul >
< h2 id = "build-from-source" > < a class = "header" href = "#build-from-source" > Build from source< / a > < / h2 >
< pre > < code > git clone --recurse-submodules --shallow-submodules -j8 https://github.com/helix-editor/helix
cd helix
cargo install --path helix-term
< / code > < / pre >
< p > This will install the < code > hx< / code > binary to < code > $HOME/.cargo/bin< / code > .< / p >
< p > Helix also needs it's runtime files so make sure to copy/symlink the < code > runtime/< / code > directory into the
config directory (for example < code > ~/.config/helix/runtime< / code > on Linux/macOS). This location can be overriden
via the < code > HELIX_RUNTIME< / code > environment variable.< / p >
< div style = "break-before: page; page-break-before: always;" > < / div > < h1 id = "usage" > < a class = "header" href = "#usage" > Usage< / a > < / h1 >
< p > (Currently not fully documented, see the < a href = "./keymap.html" > keymappings< / a > list for more.)< / p >
< p > See < a href = "https://github.com/helix-editor/helix/blob/master/runtime/tutor.txt" > tutor.txt< / a > (accessible via < code > hx --tutor< / code > or < code > :tutor< / code > ) for a vimtutor-like introduction.< / p >
< h2 id = "registers" > < a class = "header" href = "#registers" > Registers< / a > < / h2 >
< p > Vim-like registers can be used to yank and store text to be pasted later. Usage is similar, with < code > " < / code > being used to select a register:< / p >
< ul >
< li > < code > " ay< / code > - Yank the current selection to register < code > a< / code > .< / li >
< li > < code > " op< / code > - Paste the text in register < code > o< / code > after the selection.< / li >
< / ul >
< p > If there is a selected register before invoking a change or delete command, the selection will be stored in the register and the action will be carried out:< / p >
< ul >
< li > < code > " hc< / code > - Store the selection in register < code > h< / code > and then change it (delete and enter insert mode).< / li >
< li > < code > " md< / code > - Store the selection in register < code > m< / code > and delete it.< / li >
< / ul >
< h3 id = "special-registers" > < a class = "header" href = "#special-registers" > Special Registers< / a > < / h3 >
< table > < thead > < tr > < th > Register character< / th > < th > Contains< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > /< / code > < / td > < td > Last search< / td > < / tr >
< tr > < td > < code > :< / code > < / td > < td > Last executed command< / td > < / tr >
< tr > < td > < code > " < / code > < / td > < td > Last yanked text< / td > < / tr >
< / tbody > < / table >
< blockquote >
< p > There is no special register for copying to system clipboard, instead special commands and keybindings are provided. See the < a href = "keymap.html#space-mode" > keymap< / a > for the specifics.< / p >
< / blockquote >
< h2 id = "surround" > < a class = "header" href = "#surround" > Surround< / a > < / h2 >
< p > Functionality similar to < a href = "https://github.com/tpope/vim-surround" > vim-surround< / a > is built into
helix. The keymappings have been inspired from < a href = "https://github.com/machakann/vim-sandwich" > vim-sandwich< / a > :< / p >
< p > < img src = "https://user-images.githubusercontent.com/23398472/122865801-97073180-d344-11eb-8142-8f43809982c6.gif" alt = "surround demo" / > < / p >
< ul >
< li > < code > ms< / code > - Add surround characters< / li >
< li > < code > mr< / code > - Replace surround characters< / li >
< li > < code > md< / code > - Delete surround characters< / li >
< / ul >
< p > < code > ms< / code > acts on a selection, so select the text first and use < code > ms< char> < / code > . < code > mr< / code > and < code > md< / code > work
on the closest pairs found and selections are not required; use counts to act in outer pairs.< / p >
< p > It can also act on multiple seletions (yay!). For example, to change every occurance of < code > (use)< / code > to < code > [use]< / code > :< / p >
< ul >
< li > < code > %< / code > to select the whole file< / li >
< li > < code > s< / code > to split the selections on a search term< / li >
< li > Input < code > use< / code > and hit Enter< / li >
< li > < code > mr([< / code > to replace the parens with square brackets< / li >
< / ul >
< p > Multiple characters are currently not supported, but planned.< / p >
< h2 id = "textobjects" > < a class = "header" href = "#textobjects" > Textobjects< / a > < / h2 >
< p > Currently supported: < code > word< / code > , < code > surround< / code > , < code > function< / code > , < code > class< / code > , < code > parameter< / code > .< / p >
< p > < img src = "https://user-images.githubusercontent.com/23398472/124231131-81a4bb00-db2d-11eb-9d10-8e577ca7b177.gif" alt = "textobject-demo" / >
< img src = "https://user-images.githubusercontent.com/23398472/132537398-2a2e0a54-582b-44ab-a77f-eb818942203d.gif" alt = "textobject-treesitter-demo" / > < / p >
< ul >
< li > < code > ma< / code > - Select around the object (< code > va< / code > in vim, < code > < alt-a> < / code > in kakoune)< / li >
< li > < code > mi< / code > - Select inside the object (< code > vi< / code > in vim, < code > < alt-i> < / code > in kakoune)< / li >
< / ul >
< table > < thead > < tr > < th > Key after < code > mi< / code > or < code > ma< / code > < / th > < th > Textobject selected< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > w< / code > < / td > < td > Word< / td > < / tr >
< tr > < td > < code > (< / code > , < code > [< / code > , < code > '< / code > , etc< / td > < td > Specified surround pairs< / td > < / tr >
< tr > < td > < code > f< / code > < / td > < td > Function< / td > < / tr >
< tr > < td > < code > c< / code > < / td > < td > Class< / td > < / tr >
< tr > < td > < code > p< / code > < / td > < td > Parameter< / td > < / tr >
< / tbody > < / table >
< p > Note: < code > f< / code > , < code > c< / code > , etc need a tree-sitter grammar active for the current
document and a special tree-sitter query file to work properly. < a href = "https://github.com/search?q=repo%3Ahelix-editor%2Fhelix+filename%3Atextobjects.scm&type=Code&ref=advsearch&l=&l=" > Only
some grammars< / a >
currently have the query file implemented. Contributions are welcome !< / p >
< div style = "break-before: page; page-break-before: always;" > < / div > < h1 id = "migrating-from-vim" > < a class = "header" href = "#migrating-from-vim" > Migrating from Vim< / a > < / h1 >
< p > Helix's editing model is strongly inspired from vim and kakoune, and a notable
difference from vim (and the most striking similarity to kakoune) is that Helix
follows the < code > selection → action< / code > model. This means that the whatever you are
going to act on (a word, a paragraph, a line, etc) is selected first and the
action itself (delete, change, yank, etc) comes second. A cursor is simply a
single width selection.< / p >
< p > See also Kakoune's < a href = "https://github.com/mawww/kakoune/wiki/Migrating-from-Vim" > Migrating from Vim< / a > .< / p >
< blockquote >
< p > TODO: Mention texobjects, surround, registers< / p >
< / blockquote >
< div style = "break-before: page; page-break-before: always;" > < / div > < h1 id = "configuration" > < a class = "header" href = "#configuration" > Configuration< / a > < / h1 >
< p > To override global configuration parameters, create a < code > config.toml< / code > file located in your config directory:< / p >
< ul >
< li > Linux and Mac: < code > ~/.config/helix/config.toml< / code > < / li >
< li > Windows: < code > %AppData%\helix\config.toml< / code > < / li >
< / ul >
< h2 id = "editor" > < a class = "header" href = "#editor" > Editor< / a > < / h2 >
< p > < code > [editor]< / code > section of the config.< / p >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < th > Default< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > scrolloff< / code > < / td > < td > Number of lines of padding around the edge of the screen when scrolling.< / td > < td > < code > 3< / code > < / td > < / tr >
< tr > < td > < code > mouse< / code > < / td > < td > Enable mouse mode.< / td > < td > < code > true< / code > < / td > < / tr >
< tr > < td > < code > middle-click-paste< / code > < / td > < td > Middle click paste support.< / td > < td > < code > true< / code > < / td > < / tr >
< tr > < td > < code > scroll-lines< / code > < / td > < td > Number of lines to scroll per scroll wheel step.< / td > < td > < code > 3< / code > < / td > < / tr >
< tr > < td > < code > shell< / code > < / td > < td > Shell to use when running external commands.< / td > < td > Unix: < code > [" sh" , " -c" ]< / code > < br / > Windows: < code > [" cmd" , " /C" ]< / code > < / td > < / tr >
< tr > < td > < code > line-number< / code > < / td > < td > Line number display (< code > absolute< / code > , < code > relative< / code > )< / td > < td > < code > absolute< / code > < / td > < / tr >
< tr > < td > < code > smart-case< / code > < / td > < td > Enable smart case regex searching (case insensitive unless pattern contains upper case characters)< / td > < td > < code > true< / code > < / td > < / tr >
< tr > < td > < code > auto-pairs< / code > < / td > < td > Enable automatic insertion of pairs to parenthese, brackets, etc.< / td > < td > < code > true< / code > < / td > < / tr >
< tr > < td > < code > auto-completion< / code > < / td > < td > Enable automatic pop up of auto-completion.< / td > < td > < code > true< / code > < / td > < / tr >
< tr > < td > < code > idle-timeout< / code > < / td > < td > Time in milliseconds since last keypress before idle timers trigger. Used for autocompletion, set to 0 for instant.< / td > < td > < code > 400< / code > < / td > < / tr >
< tr > < td > < code > completion-trigger-len< / code > < / td > < td > The min-length of word under cursor to trigger autocompletion< / td > < td > < code > 2< / code > < / td > < / tr >
< tr > < td > < code > auto-info< / code > < / td > < td > Whether to display infoboxes< / td > < td > < code > true< / code > < / td > < / tr >
< / tbody > < / table >
< h2 id = "lsp" > < a class = "header" href = "#lsp" > LSP< / a > < / h2 >
< p > To display all language server messages in the status line add the following to your < code > config.toml< / code > :< / p >
< pre > < code class = "language-toml" > [lsp]
display-messages = true
< / code > < / pre >
< div style = "break-before: page; page-break-before: always;" > < / div > < h1 id = "themes" > < a class = "header" href = "#themes" > Themes< / a > < / h1 >
< p > First you'll need to place selected themes in your < code > themes< / code > directory (i.e < code > ~/.config/helix/themes< / code > ), the directory might have to be created beforehand.< / p >
< p > To use a custom theme add < code > theme = < name> < / code > to your < a href = "./configuration.html" > < code > config.toml< / code > < / a > or override it during runtime using < code > :theme < name> < / code > .< / p >
< p > The default theme.toml can be found < a href = "https://github.com/helix-editor/helix/blob/master/theme.toml" > here< / a > , and user submitted themes < a href = "https://github.com/helix-editor/helix/blob/master/runtime/themes" > here< / a > . < / p >
< h2 id = "creating-a-theme" > < a class = "header" href = "#creating-a-theme" > Creating a theme< / a > < / h2 >
< p > First create a file with the name of your theme as file name (i.e < code > mytheme.toml< / code > ) and place it in your < code > themes< / code > directory (i.e < code > ~/.config/helix/themes< / code > ).< / p >
< p > Each line in the theme file is specified as below:< / p >
< pre > < code class = "language-toml" > key = { fg = " #ffffff" , bg = " #000000" , modifiers = [" bold" , " italic" ] }
< / code > < / pre >
< p > where < code > key< / code > represents what you want to style, < code > fg< / code > specifies the foreground color, < code > bg< / code > the background color, and < code > modifiers< / code > is a list of style modifiers. < code > bg< / code > and < code > modifiers< / code > can be omitted to defer to the defaults.< / p >
< p > To specify only the foreground color:< / p >
< pre > < code class = "language-toml" > key = " #ffffff"
< / code > < / pre >
< p > if the key contains a dot < code > '.'< / code > , it must be quoted to prevent it being parsed as a < a href = "https://toml.io/en/v1.0.0#keys" > dotted key< / a > .< / p >
< pre > < code class = "language-toml" > " key.key" = " #ffffff"
< / code > < / pre >
< h3 id = "color-palettes" > < a class = "header" href = "#color-palettes" > Color palettes< / a > < / h3 >
< p > It's recommended define a palette of named colors, and refer to them from the
configuration values in your theme. To do this, add a table called
< code > palette< / code > to your theme file:< / p >
< pre > < code class = "language-toml" > ui.background = " white"
ui.text = " black"
[palette]
white = " #ffffff"
black = " #000000"
< / code > < / pre >
< p > Remember that the < code > [palette]< / code > table includes all keys after its header,
so you should define the palette after normal theme options.< / p >
< p > The default palette uses the terminal's default 16 colors, and the colors names
are listed below. The < code > [palette]< / code > section in the config file takes precedence
over it and is merged into the default palette.< / p >
< table > < thead > < tr > < th > Color Name< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > black< / code > < / td > < / tr >
< tr > < td > < code > red< / code > < / td > < / tr >
< tr > < td > < code > green< / code > < / td > < / tr >
< tr > < td > < code > yellow< / code > < / td > < / tr >
< tr > < td > < code > blue< / code > < / td > < / tr >
< tr > < td > < code > magenta< / code > < / td > < / tr >
< tr > < td > < code > cyan< / code > < / td > < / tr >
< tr > < td > < code > gray< / code > < / td > < / tr >
< tr > < td > < code > light-red< / code > < / td > < / tr >
< tr > < td > < code > light-green< / code > < / td > < / tr >
< tr > < td > < code > light-yellow< / code > < / td > < / tr >
< tr > < td > < code > light-blue< / code > < / td > < / tr >
< tr > < td > < code > light-magenta< / code > < / td > < / tr >
< tr > < td > < code > light-cyan< / code > < / td > < / tr >
< tr > < td > < code > light-gray< / code > < / td > < / tr >
< tr > < td > < code > white< / code > < / td > < / tr >
< / tbody > < / table >
< h3 id = "modifiers" > < a class = "header" href = "#modifiers" > Modifiers< / a > < / h3 >
< p > The following values may be used as modifiers. < / p >
< p > Less common modifiers might not be supported by your terminal emulator.< / p >
< table > < thead > < tr > < th > Modifier< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > bold< / code > < / td > < / tr >
< tr > < td > < code > dim< / code > < / td > < / tr >
< tr > < td > < code > italic< / code > < / td > < / tr >
< tr > < td > < code > underlined< / code > < / td > < / tr >
< tr > < td > < code > slow_blink< / code > < / td > < / tr >
< tr > < td > < code > rapid_blink< / code > < / td > < / tr >
< tr > < td > < code > reversed< / code > < / td > < / tr >
< tr > < td > < code > hidden< / code > < / td > < / tr >
< tr > < td > < code > crossed_out< / code > < / td > < / tr >
< / tbody > < / table >
< h3 id = "scopes" > < a class = "header" href = "#scopes" > Scopes< / a > < / h3 >
< p > The following is a list of scopes available to use for styling.< / p >
< h4 id = "syntax-highlighting" > < a class = "header" href = "#syntax-highlighting" > Syntax highlighting< / a > < / h4 >
< p > These keys match < a href = "https://tree-sitter.github.io/tree-sitter/syntax-highlighting#theme" > tree-sitter scopes< / a > .< / p >
< p > For a given highlight produced, styling will be determined based on the longest matching theme key. For example, the highlight < code > function.builtin.static< / code > would match the key < code > function.builtin< / code > rather than < code > function< / code > .< / p >
< p > We use a similar set of scopes as
< a href = "https://www.sublimetext.com/docs/scope_naming.html" > SublimeText< / a > . See also
< a href = "https://macromates.com/manual/en/language_grammars" > TextMate< / a > scopes.< / p >
< ul >
< li >
< p > < code > type< / code > - Types< / p >
< ul >
< li > < code > builtin< / code > - Primitive types provided by the language (< code > int< / code > , < code > usize< / code > )< / li >
< / ul >
< / li >
< li >
< p > < code > constant< / code > (TODO: constant.other.placeholder for %v)< / p >
< ul >
< li > < code > builtin< / code > Special constants provided by the language (< code > true< / code > , < code > false< / code > , < code > nil< / code > etc)
< ul >
< li > < code > boolean< / code > < / li >
< / ul >
< / li >
< li > < code > character< / code >
< ul >
< li > < code > escape< / code > < / li >
< / ul >
< / li >
< li > < code > numeric< / code > (numbers)
< ul >
< li > < code > integer< / code > < / li >
< li > < code > float< / code > < / li >
< / ul >
< / li >
< / ul >
< / li >
< li >
< p > < code > string< / code > (TODO: string.quoted.{single, double}, string.raw/.unquoted)?< / p >
< ul >
< li > < code > regexp< / code > - Regular expressions< / li >
< li > < code > special< / code >
< ul >
< li > < code > path< / code > < / li >
< li > < code > url< / code > < / li >
< li > < code > symbol< / code > - Erlang/Elixir atoms, Ruby symbols, Clojure keywords< / li >
< / ul >
< / li >
< / ul >
< / li >
< li >
< p > < code > comment< / code > - Code comments< / p >
< ul >
< li > < code > line< / code > - Single line comments (< code > //< / code > )< / li >
< li > < code > block< / code > - Block comments (e.g. (< code > /* */< / code > )
< ul >
< li > < code > documentation< / code > - Documentation comments (e.g. < code > ///< / code > in Rust)< / li >
< / ul >
< / li >
< / ul >
< / li >
< li >
< p > < code > variable< / code > - Variables< / p >
< ul >
< li > < code > builtin< / code > - Reserved language variables (< code > self< / code > , < code > this< / code > , < code > super< / code > , etc)< / li >
< li > < code > parameter< / code > - Function parameters< / li >
< li > < code > other< / code >
< ul >
< li > < code > member< / code > - Fields of composite data types (e.g. structs, unions)< / li >
< / ul >
< / li >
< li > < code > function< / code > (TODO: ?)< / li >
< / ul >
< / li >
< li >
< p > < code > label< / code > < / p >
< / li >
< li >
< p > < code > punctuation< / code > < / p >
< ul >
< li > < code > delimiter< / code > - Commas, colons< / li >
< li > < code > bracket< / code > - Parentheses, angle brackets, etc.< / li >
< / ul >
< / li >
< li >
< p > < code > keyword< / code > < / p >
< ul >
< li > < code > control< / code >
< ul >
< li > < code > conditional< / code > - < code > if< / code > , < code > else< / code > < / li >
< li > < code > repeat< / code > - < code > for< / code > , < code > while< / code > , < code > loop< / code > < / li >
< li > < code > import< / code > - < code > import< / code > , < code > export< / code > < / li >
< li > (TODO: return?)< / li >
< / ul >
< / li >
< li > < code > directive< / code > - Preprocessor directives (< code > #if< / code > in C) < / li >
< li > < code > function< / code > - < code > fn< / code > , < code > func< / code > < / li >
< / ul >
< / li >
< li >
< p > < code > operator< / code > - < code > ||< / code > , < code > +=< / code > , < code > > < / code > , < code > or< / code > < / p >
< / li >
< li >
< p > < code > function< / code > < / p >
< ul >
< li > < code > builtin< / code > < / li >
< li > < code > method< / code > < / li >
< li > < code > macro< / code > < / li >
< li > < code > special< / code > (preprocesor in C)< / li >
< / ul >
< / li >
< li >
< p > < code > tag< / code > - Tags (e.g. < code > < body> < / code > in HTML)< / p >
< / li >
< li >
< p > < code > namespace< / code > < / p >
< / li >
< / ul >
< h4 id = "interface" > < a class = "header" href = "#interface" > Interface< / a > < / h4 >
< p > These scopes are used for theming the editor interface.< / p >
< table > < thead > < tr > < th > Key< / th > < th > Notes< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > ui.background< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.cursor< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.cursor.insert< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.cursor.select< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.cursor.match< / code > < / td > < td > Matching bracket etc.< / td > < / tr >
< tr > < td > < code > ui.cursor.primary< / code > < / td > < td > Cursor with primary selection< / td > < / tr >
< tr > < td > < code > ui.linenr< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.linenr.selected< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.statusline< / code > < / td > < td > Statusline< / td > < / tr >
< tr > < td > < code > ui.statusline.inactive< / code > < / td > < td > Statusline (unfocused document)< / td > < / tr >
< tr > < td > < code > ui.popup< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.window< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.help< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.text< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.text.focus< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.info< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.info.text< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.menu< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.menu.selected< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.selection< / code > < / td > < td > For selections in the editing area< / td > < / tr >
< tr > < td > < code > ui.selection.primary< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > warning< / code > < / td > < td > Diagnostics warning (gutter)< / td > < / tr >
< tr > < td > < code > error< / code > < / td > < td > Diagnostics error (gutter)< / td > < / tr >
< tr > < td > < code > info< / code > < / td > < td > Diagnostics info (gutter)< / td > < / tr >
< tr > < td > < code > hint< / code > < / td > < td > Diagnostics hint (gutter)< / td > < / tr >
< tr > < td > < code > diagnostic< / code > < / td > < td > For text in editing area< / td > < / tr >
< / tbody > < / table >
< div style = "break-before: page; page-break-before: always;" > < / div > < h1 id = "keymap" > < a class = "header" href = "#keymap" > Keymap< / a > < / h1 >
< h2 id = "normal-mode" > < a class = "header" href = "#normal-mode" > Normal mode< / a > < / h2 >
< h3 id = "movement" > < a class = "header" href = "#movement" > Movement< / a > < / h3 >
< blockquote >
< p > NOTE: Unlike vim, < code > f< / code > , < code > F< / code > , < code > t< / code > and < code > T< / code > are not confined to the current line.< / p >
< / blockquote >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < th > Command< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > h< / code > /< code > Left< / code > < / td > < td > Move left< / td > < td > < code > move_char_left< / code > < / td > < / tr >
< tr > < td > < code > j< / code > /< code > Down< / code > < / td > < td > Move down< / td > < td > < code > move_line_down< / code > < / td > < / tr >
< tr > < td > < code > k< / code > /< code > Up< / code > < / td > < td > Move up< / td > < td > < code > move_line_up< / code > < / td > < / tr >
< tr > < td > < code > l< / code > /< code > Right< / code > < / td > < td > Move right< / td > < td > < code > move_char_right< / code > < / td > < / tr >
< tr > < td > < code > w< / code > < / td > < td > Move next word start< / td > < td > < code > move_next_word_start< / code > < / td > < / tr >
< tr > < td > < code > b< / code > < / td > < td > Move previous word start< / td > < td > < code > move_prev_word_start< / code > < / td > < / tr >
< tr > < td > < code > e< / code > < / td > < td > Move next word end< / td > < td > < code > move_next_word_end< / code > < / td > < / tr >
< tr > < td > < code > W< / code > < / td > < td > Move next WORD start< / td > < td > < code > move_next_long_word_start< / code > < / td > < / tr >
< tr > < td > < code > B< / code > < / td > < td > Move previous WORD start< / td > < td > < code > move_prev_long_word_start< / code > < / td > < / tr >
< tr > < td > < code > E< / code > < / td > < td > Move next WORD end< / td > < td > < code > move_next_long_word_end< / code > < / td > < / tr >
< tr > < td > < code > t< / code > < / td > < td > Find 'till next char< / td > < td > < code > find_till_char< / code > < / td > < / tr >
< tr > < td > < code > f< / code > < / td > < td > Find next char< / td > < td > < code > find_next_char< / code > < / td > < / tr >
< tr > < td > < code > T< / code > < / td > < td > Find 'till previous char< / td > < td > < code > till_prev_char< / code > < / td > < / tr >
< tr > < td > < code > F< / code > < / td > < td > Find previous char< / td > < td > < code > find_prev_char< / code > < / td > < / tr >
< tr > < td > < code > Alt-.< / code > < / td > < td > Repeat last motion (< code > f< / code > , < code > t< / code > or < code > m< / code > )< / td > < td > < code > repeat_last_motion< / code > < / td > < / tr >
< tr > < td > < code > Home< / code > < / td > < td > Move to the start of the line< / td > < td > < code > goto_line_start< / code > < / td > < / tr >
< tr > < td > < code > End< / code > < / td > < td > Move to the end of the line< / td > < td > < code > goto_line_end< / code > < / td > < / tr >
< tr > < td > < code > PageUp< / code > < / td > < td > Move page up< / td > < td > < code > page_up< / code > < / td > < / tr >
< tr > < td > < code > PageDown< / code > < / td > < td > Move page down< / td > < td > < code > page_down< / code > < / td > < / tr >
< tr > < td > < code > Ctrl-u< / code > < / td > < td > Move half page up< / td > < td > < code > half_page_up< / code > < / td > < / tr >
< tr > < td > < code > Ctrl-d< / code > < / td > < td > Move half page down< / td > < td > < code > half_page_down< / code > < / td > < / tr >
< tr > < td > < code > Ctrl-i< / code > < / td > < td > Jump forward on the jumplist< / td > < td > < code > jump_forward< / code > < / td > < / tr >
< tr > < td > < code > Ctrl-o< / code > < / td > < td > Jump backward on the jumplist< / td > < td > < code > jump_backward< / code > < / td > < / tr >
< tr > < td > < code > v< / code > < / td > < td > Enter < a href = "keymap.html#select--extend-mode" > select (extend) mode< / a > < / td > < td > < code > select_mode< / code > < / td > < / tr >
< tr > < td > < code > g< / code > < / td > < td > Enter < a href = "keymap.html#goto-mode" > goto mode< / a > < / td > < td > N/A< / td > < / tr >
< tr > < td > < code > m< / code > < / td > < td > Enter < a href = "keymap.html#match-mode" > match mode< / a > < / td > < td > N/A< / td > < / tr >
< tr > < td > < code > :< / code > < / td > < td > Enter command mode< / td > < td > < code > command_mode< / code > < / td > < / tr >
< tr > < td > < code > z< / code > < / td > < td > Enter < a href = "keymap.html#view-mode" > view mode< / a > < / td > < td > N/A< / td > < / tr >
< tr > < td > < code > Z< / code > < / td > < td > Enter sticky < a href = "keymap.html#view-mode" > view mode< / a > < / td > < td > N/A< / td > < / tr >
< tr > < td > < code > Ctrl-w< / code > < / td > < td > Enter < a href = "keymap.html#window-mode" > window mode< / a > < / td > < td > N/A< / td > < / tr >
< tr > < td > < code > Space< / code > < / td > < td > Enter < a href = "keymap.html#space-mode" > space mode< / a > < / td > < td > N/A< / td > < / tr >
< / tbody > < / table >
< h3 id = "changes" > < a class = "header" href = "#changes" > Changes< / a > < / h3 >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < th > Command< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > r< / code > < / td > < td > Replace with a character< / td > < td > < code > replace< / code > < / td > < / tr >
< tr > < td > < code > R< / code > < / td > < td > Replace with yanked text< / td > < td > < code > replace_with_yanked< / code > < / td > < / tr >
< tr > < td > < code > ~< / code > < / td > < td > Switch case of the selected text< / td > < td > < code > switch_case< / code > < / td > < / tr >
< tr > < td > < code > `< / code > < / td > < td > Set the selected text to lower case< / td > < td > < code > switch_to_lowercase< / code > < / td > < / tr >
< tr > < td > < code > Alt-`< / code > < / td > < td > Set the selected text to upper case< / td > < td > < code > switch_to_uppercase< / code > < / td > < / tr >
< tr > < td > < code > i< / code > < / td > < td > Insert before selection< / td > < td > < code > insert_mode< / code > < / td > < / tr >
< tr > < td > < code > a< / code > < / td > < td > Insert after selection (append)< / td > < td > < code > append_mode< / code > < / td > < / tr >
< tr > < td > < code > I< / code > < / td > < td > Insert at the start of the line< / td > < td > < code > prepend_to_line< / code > < / td > < / tr >
< tr > < td > < code > A< / code > < / td > < td > Insert at the end of the line< / td > < td > < code > append_to_line< / code > < / td > < / tr >
< tr > < td > < code > o< / code > < / td > < td > Open new line below selection< / td > < td > < code > open_below< / code > < / td > < / tr >
< tr > < td > < code > O< / code > < / td > < td > Open new line above selection< / td > < td > < code > open_above< / code > < / td > < / tr >
< tr > < td > < code > .< / code > < / td > < td > Repeat last change< / td > < td > N/A< / td > < / tr >
< tr > < td > < code > u< / code > < / td > < td > Undo change< / td > < td > < code > undo< / code > < / td > < / tr >
< tr > < td > < code > U< / code > < / td > < td > Redo change< / td > < td > < code > redo< / code > < / td > < / tr >
< tr > < td > < code > y< / code > < / td > < td > Yank selection< / td > < td > < code > yank< / code > < / td > < / tr >
< tr > < td > < code > p< / code > < / td > < td > Paste after selection< / td > < td > < code > paste_after< / code > < / td > < / tr >
< tr > < td > < code > P< / code > < / td > < td > Paste before selection< / td > < td > < code > paste_before< / code > < / td > < / tr >
< tr > < td > < code > " < / code > < code > < reg> < / code > < / td > < td > Select a register to yank to or paste from< / td > < td > < code > select_register< / code > < / td > < / tr >
< tr > < td > < code > > < / code > < / td > < td > Indent selection< / td > < td > < code > indent< / code > < / td > < / tr >
< tr > < td > < code > < < / code > < / td > < td > Unindent selection< / td > < td > < code > unindent< / code > < / td > < / tr >
< tr > < td > < code > =< / code > < / td > < td > Format selection< / td > < td > < code > format_selections< / code > < / td > < / tr >
< tr > < td > < code > d< / code > < / td > < td > Delete selection< / td > < td > < code > delete_selection< / code > < / td > < / tr >
< tr > < td > < code > c< / code > < / td > < td > Change selection (delete and enter insert mode)< / td > < td > < code > change_selection< / code > < / td > < / tr >
< / tbody > < / table >
< h4 id = "shell" > < a class = "header" href = "#shell" > Shell< / a > < / h4 >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < th > Command< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > |< / code > < / td > < td > Pipe each selection through shell command, replacing with output< / td > < td > < code > shell_pipe< / code > < / td > < / tr >
< tr > < td > < code > A-|< / code > < / td > < td > Pipe each selection into shell command, ignoring output< / td > < td > < code > shell_pipe_to< / code > < / td > < / tr >
< tr > < td > < code > !< / code > < / td > < td > Run shell command, inserting output before each selection< / td > < td > < code > shell_insert_output< / code > < / td > < / tr >
< tr > < td > < code > A-!< / code > < / td > < td > Run shell command, appending output after each selection< / td > < td > < code > shell_append_output< / code > < / td > < / tr >
< / tbody > < / table >
< h3 id = "selection-manipulation" > < a class = "header" href = "#selection-manipulation" > Selection manipulation< / a > < / h3 >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < th > Command< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > s< / code > < / td > < td > Select all regex matches inside selections< / td > < td > < code > select_regex< / code > < / td > < / tr >
< tr > < td > < code > S< / code > < / td > < td > Split selection into subselections on regex matches< / td > < td > < code > split_selection< / code > < / td > < / tr >
< tr > < td > < code > Alt-s< / code > < / td > < td > Split selection on newlines< / td > < td > < code > split_selection_on_newline< / code > < / td > < / tr >
< tr > < td > < code > ;< / code > < / td > < td > Collapse selection onto a single cursor< / td > < td > < code > collapse_selection< / code > < / td > < / tr >
< tr > < td > < code > Alt-;< / code > < / td > < td > Flip selection cursor and anchor< / td > < td > < code > flip_selections< / code > < / td > < / tr >
< tr > < td > < code > ,< / code > < / td > < td > Keep only the primary selection< / td > < td > < code > keep_primary_selection< / code > < / td > < / tr >
< tr > < td > < code > Alt-,< / code > < / td > < td > Remove the primary selection< / td > < td > < code > remove_primary_selection< / code > < / td > < / tr >
< tr > < td > < code > C< / code > < / td > < td > Copy selection onto the next line (Add cursor below)< / td > < td > < code > copy_selection_on_next_line< / code > < / td > < / tr >
< tr > < td > < code > Alt-C< / code > < / td > < td > Copy selection onto the previous line (Add cursor above)< / td > < td > < code > copy_selection_on_prev_line< / code > < / td > < / tr >
< tr > < td > < code > (< / code > < / td > < td > Rotate main selection backward< / td > < td > < code > rotate_selections_backward< / code > < / td > < / tr >
< tr > < td > < code > )< / code > < / td > < td > Rotate main selection forward< / td > < td > < code > rotate_selections_forward< / code > < / td > < / tr >
< tr > < td > < code > Alt-(< / code > < / td > < td > Rotate selection contents backward< / td > < td > < code > rotate_selection_contents_backward< / code > < / td > < / tr >
< tr > < td > < code > Alt-)< / code > < / td > < td > Rotate selection contents forward< / td > < td > < code > rotate_selection_contents_forward< / code > < / td > < / tr >
< tr > < td > < code > %< / code > < / td > < td > Select entire file< / td > < td > < code > select_all< / code > < / td > < / tr >
< tr > < td > < code > x< / code > < / td > < td > Select current line, if already selected, extend to next line< / td > < td > < code > extend_line< / code > < / td > < / tr >
< tr > < td > < code > X< / code > < / td > < td > Extend selection to line bounds (line-wise selection)< / td > < td > < code > extend_to_line_bounds< / code > < / td > < / tr >
< tr > < td > < / td > < td > Expand selection to parent syntax node TODO: pick a key< / td > < td > < code > expand_selection< / code > < / td > < / tr >
< tr > < td > < code > J< / code > < / td > < td > Join lines inside selection< / td > < td > < code > join_selections< / code > < / td > < / tr >
< tr > < td > < code > K< / code > < / td > < td > Keep selections matching the regex< / td > < td > < code > keep_selections< / code > < / td > < / tr >
< tr > < td > < code > $< / code > < / td > < td > Pipe each selection into shell command, keep selections where command returned 0< / td > < td > < code > shell_keep_pipe< / code > < / td > < / tr >
< tr > < td > < code > Ctrl-c< / code > < / td > < td > Comment/uncomment the selections< / td > < td > < code > toggle_comments< / code > < / td > < / tr >
< / tbody > < / table >
< h3 id = "search" > < a class = "header" href = "#search" > Search< / a > < / h3 >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < th > Command< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > /< / code > < / td > < td > Search for regex pattern< / td > < td > < code > search< / code > < / td > < / tr >
< tr > < td > < code > ?< / code > < / td > < td > Search for previous pattern< / td > < td > < code > rsearch< / code > < / td > < / tr >
< tr > < td > < code > n< / code > < / td > < td > Select next search match< / td > < td > < code > search_next< / code > < / td > < / tr >
< tr > < td > < code > N< / code > < / td > < td > Select previous search match< / td > < td > < code > search_prev< / code > < / td > < / tr >
< tr > < td > < code > *< / code > < / td > < td > Use current selection as the search pattern< / td > < td > < code > search_selection< / code > < / td > < / tr >
< / tbody > < / table >
< h3 id = "minor-modes" > < a class = "header" href = "#minor-modes" > Minor modes< / a > < / h3 >
< p > These sub-modes are accessible from normal mode and typically switch back to normal mode after a command.< / p >
< h4 id = "view-mode" > < a class = "header" href = "#view-mode" > View mode< / a > < / h4 >
< p > View mode is intended for scrolling and manipulating the view without changing
the selection. The " sticky" variant of this mode is persistent; use the Escape
key to return to normal mode after usage (useful when you're simply looking
over text and not actively editing it).< / p >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < th > Command< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > z< / code > , < code > c< / code > < / td > < td > Vertically center the line< / td > < td > < code > align_view_center< / code > < / td > < / tr >
< tr > < td > < code > t< / code > < / td > < td > Align the line to the top of the screen< / td > < td > < code > align_view_top< / code > < / td > < / tr >
< tr > < td > < code > b< / code > < / td > < td > Align the line to the bottom of the screen< / td > < td > < code > align_view_bottom< / code > < / td > < / tr >
< tr > < td > < code > m< / code > < / td > < td > Align the line to the middle of the screen (horizontally)< / td > < td > < code > align_view_middle< / code > < / td > < / tr >
< tr > < td > < code > j< / code > < / td > < td > Scroll the view downwards< / td > < td > < code > scroll_down< / code > < / td > < / tr >
< tr > < td > < code > k< / code > < / td > < td > Scroll the view upwards< / td > < td > < code > scroll_up< / code > < / td > < / tr >
< tr > < td > < code > f< / code > < / td > < td > Move page down< / td > < td > < code > page_down< / code > < / td > < / tr >
< tr > < td > < code > b< / code > < / td > < td > Move page up< / td > < td > < code > page_up< / code > < / td > < / tr >
< tr > < td > < code > d< / code > < / td > < td > Move half page down< / td > < td > < code > half_page_down< / code > < / td > < / tr >
< tr > < td > < code > u< / code > < / td > < td > Move half page up< / td > < td > < code > half_page_up< / code > < / td > < / tr >
< / tbody > < / table >
< h4 id = "goto-mode" > < a class = "header" href = "#goto-mode" > Goto mode< / a > < / h4 >
< p > Jumps to various locations.< / p >
< blockquote >
< p > NOTE: Some of these features are only available with the LSP present.< / p >
< / blockquote >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < th > Command< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > g< / code > < / td > < td > Go to the start of the file< / td > < td > < code > goto_file_start< / code > < / td > < / tr >
< tr > < td > < code > e< / code > < / td > < td > Go to the end of the file< / td > < td > < code > goto_last_line< / code > < / td > < / tr >
< tr > < td > < code > h< / code > < / td > < td > Go to the start of the line< / td > < td > < code > goto_line_start< / code > < / td > < / tr >
< tr > < td > < code > l< / code > < / td > < td > Go to the end of the line< / td > < td > < code > goto_line_end< / code > < / td > < / tr >
< tr > < td > < code > s< / code > < / td > < td > Go to first non-whitespace character of the line< / td > < td > < code > goto_first_nonwhitespace< / code > < / td > < / tr >
< tr > < td > < code > t< / code > < / td > < td > Go to the top of the screen< / td > < td > < code > goto_window_top< / code > < / td > < / tr >
< tr > < td > < code > m< / code > < / td > < td > Go to the middle of the screen< / td > < td > < code > goto_window_middle< / code > < / td > < / tr >
< tr > < td > < code > b< / code > < / td > < td > Go to the bottom of the screen< / td > < td > < code > goto_window_bottom< / code > < / td > < / tr >
< tr > < td > < code > d< / code > < / td > < td > Go to definition< / td > < td > < code > goto_definition< / code > < / td > < / tr >
< tr > < td > < code > y< / code > < / td > < td > Go to type definition< / td > < td > < code > goto_type_definition< / code > < / td > < / tr >
< tr > < td > < code > r< / code > < / td > < td > Go to references< / td > < td > < code > goto_reference< / code > < / td > < / tr >
< tr > < td > < code > i< / code > < / td > < td > Go to implementation< / td > < td > < code > goto_implementation< / code > < / td > < / tr >
< tr > < td > < code > a< / code > < / td > < td > Go to the last accessed/alternate file< / td > < td > < code > goto_last_accessed_file< / code > < / td > < / tr >
< tr > < td > < code > n< / code > < / td > < td > Go to next buffer< / td > < td > < code > goto_next_buffer< / code > < / td > < / tr >
< tr > < td > < code > p< / code > < / td > < td > Go to previous buffer< / td > < td > < code > goto_previous_buffer< / code > < / td > < / tr >
< / tbody > < / table >
< h4 id = "match-mode" > < a class = "header" href = "#match-mode" > Match mode< / a > < / h4 >
< p > Enter this mode using < code > m< / code > from normal mode. See the relavant section
in < a href = "./usage.html" > Usage< / a > for an explanation about < a href = "./usage.html#surround" > surround< / a >
and < a href = "./usage.html#textobject" > textobject< / a > usage.< / p >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < th > Command< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > m< / code > < / td > < td > Goto matching bracket< / td > < td > < code > match_brackets< / code > < / td > < / tr >
< tr > < td > < code > s< / code > < code > < char> < / code > < / td > < td > Surround current selection with < code > < char> < / code > < / td > < td > < code > surround_add< / code > < / td > < / tr >
< tr > < td > < code > r< / code > < code > < from> < to> < / code > < / td > < td > Replace surround character < code > < from> < / code > with < code > < to> < / code > < / td > < td > < code > surround_replace< / code > < / td > < / tr >
< tr > < td > < code > d< / code > < code > < char> < / code > < / td > < td > Delete surround character < code > < char> < / code > < / td > < td > < code > surround_delete< / code > < / td > < / tr >
< tr > < td > < code > a< / code > < code > < object> < / code > < / td > < td > Select around textobject< / td > < td > < code > select_textobject_around< / code > < / td > < / tr >
< tr > < td > < code > i< / code > < code > < object> < / code > < / td > < td > Select inside textobject< / td > < td > < code > select_textobject_inner< / code > < / td > < / tr >
< / tbody > < / table >
< p > TODO: Mappings for selecting syntax nodes (a superset of < code > [< / code > ).< / p >
< h4 id = "window-mode" > < a class = "header" href = "#window-mode" > Window mode< / a > < / h4 >
< p > This layer is similar to vim keybindings as kakoune does not support window.< / p >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < th > Command< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > w< / code > , < code > Ctrl-w< / code > < / td > < td > Switch to next window< / td > < td > < code > rotate_view< / code > < / td > < / tr >
< tr > < td > < code > v< / code > , < code > Ctrl-v< / code > < / td > < td > Vertical right split< / td > < td > < code > vsplit< / code > < / td > < / tr >
< tr > < td > < code > s< / code > , < code > Ctrl-s< / code > < / td > < td > Horizontal bottom split< / td > < td > < code > hsplit< / code > < / td > < / tr >
< tr > < td > < code > h< / code > , < code > Ctrl-h< / code > , < code > left< / code > < / td > < td > Move to left split< / td > < td > < code > jump_view_left< / code > < / td > < / tr >
< tr > < td > < code > j< / code > , < code > Ctrl-j< / code > , < code > down< / code > < / td > < td > Move to split below< / td > < td > < code > jump_view_down< / code > < / td > < / tr >
< tr > < td > < code > k< / code > , < code > Ctrl-k< / code > , < code > up< / code > < / td > < td > Move to split above< / td > < td > < code > jump_view_up< / code > < / td > < / tr >
< tr > < td > < code > l< / code > , < code > Ctrl-l< / code > , < code > right< / code > < / td > < td > Move to right split< / td > < td > < code > jump_view_right< / code > < / td > < / tr >
< tr > < td > < code > q< / code > , < code > Ctrl-q< / code > < / td > < td > Close current window< / td > < td > < code > wclose< / code > < / td > < / tr >
< / tbody > < / table >
< h4 id = "space-mode" > < a class = "header" href = "#space-mode" > Space mode< / a > < / h4 >
< p > This layer is a kludge of mappings, mostly pickers.< / p >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < th > Command< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > k< / code > < / td > < td > Show documentation for the item under the cursor< / td > < td > < code > hover< / code > < / td > < / tr >
< tr > < td > < code > f< / code > < / td > < td > Open file picker< / td > < td > < code > file_picker< / code > < / td > < / tr >
< tr > < td > < code > b< / code > < / td > < td > Open buffer picker< / td > < td > < code > buffer_picker< / code > < / td > < / tr >
< tr > < td > < code > s< / code > < / td > < td > Open symbol picker (current document)< / td > < td > < code > symbol_picker< / code > < / td > < / tr >
< tr > < td > < code > a< / code > < / td > < td > Apply code action< / td > < td > < code > code_action< / code > < / td > < / tr >
< tr > < td > < code > '< / code > < / td > < td > Open last fuzzy picker< / td > < td > < code > last_picker< / code > < / td > < / tr >
< tr > < td > < code > w< / code > < / td > < td > Enter < a href = "keymap.html#window-mode" > window mode< / a > < / td > < td > N/A< / td > < / tr >
< tr > < td > < code > p< / code > < / td > < td > Paste system clipboard after selections< / td > < td > < code > paste_clipboard_after< / code > < / td > < / tr >
< tr > < td > < code > P< / code > < / td > < td > Paste system clipboard before selections< / td > < td > < code > paste_clipboard_before< / code > < / td > < / tr >
< tr > < td > < code > y< / code > < / td > < td > Join and yank selections to clipboard< / td > < td > < code > yank_joined_to_clipboard< / code > < / td > < / tr >
< tr > < td > < code > Y< / code > < / td > < td > Yank main selection to clipboard< / td > < td > < code > yank_main_selection_to_clipboard< / code > < / td > < / tr >
< tr > < td > < code > R< / code > < / td > < td > Replace selections by clipboard contents< / td > < td > < code > replace_selections_with_clipboard< / code > < / td > < / tr >
< tr > < td > < code > /< / code > < / td > < td > Global search in workspace folder< / td > < td > < code > global_search< / code > < / td > < / tr >
< / tbody > < / table >
< blockquote >
< p > NOTE: Global search display results in a fuzzy picker, use < code > space + '< / code > to bring it back up after opening a file.< / p >
< / blockquote >
< h4 id = "unimpaired" > < a class = "header" href = "#unimpaired" > Unimpaired< / a > < / h4 >
< p > Mappings in the style of < a href = "https://github.com/tpope/vim-unimpaired" > vim-unimpaired< / a > .< / p >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < th > Command< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > [d< / code > < / td > < td > Go to previous diagnostic< / td > < td > < code > goto_prev_diag< / code > < / td > < / tr >
< tr > < td > < code > ]d< / code > < / td > < td > Go to next diagnostic< / td > < td > < code > goto_next_diag< / code > < / td > < / tr >
< tr > < td > < code > [D< / code > < / td > < td > Go to first diagnostic in document< / td > < td > < code > goto_first_diag< / code > < / td > < / tr >
< tr > < td > < code > ]D< / code > < / td > < td > Go to last diagnostic in document< / td > < td > < code > goto_last_diag< / code > < / td > < / tr >
< tr > < td > < code > [space< / code > < / td > < td > Add newline above< / td > < td > < code > add_newline_above< / code > < / td > < / tr >
< tr > < td > < code > ]space< / code > < / td > < td > Add newline below< / td > < td > < code > add_newline_below< / code > < / td > < / tr >
< / tbody > < / table >
< h2 id = "insert-mode" > < a class = "header" href = "#insert-mode" > Insert Mode< / a > < / h2 >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < th > Command< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > Escape< / code > < / td > < td > Switch to normal mode< / td > < td > < code > normal_mode< / code > < / td > < / tr >
< tr > < td > < code > Ctrl-x< / code > < / td > < td > Autocomplete< / td > < td > < code > completion< / code > < / td > < / tr >
< tr > < td > < code > Ctrl-w< / code > < / td > < td > Delete previous word< / td > < td > < code > delete_word_backward< / code > < / td > < / tr >
< / tbody > < / table >
< h2 id = "select--extend-mode" > < a class = "header" href = "#select--extend-mode" > Select / extend mode< / a > < / h2 >
< p > I'm still pondering whether to keep this mode or not. It changes movement
commands (including goto) to extend the existing selection instead of replacing it.< / p >
< blockquote >
< p > NOTE: It's a bit confusing at the moment because extend hasn't been
implemented for all movement commands yet.< / p >
< / blockquote >
< h1 id = "picker" > < a class = "header" href = "#picker" > Picker< / a > < / h1 >
< p > Keys to use within picker. Remapping currently not supported.< / p >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > Up< / code > , < code > Ctrl-k< / code > , < code > Ctrl-p< / code > < / td > < td > Previous entry< / td > < / tr >
< tr > < td > < code > Down< / code > , < code > Ctrl-j< / code > , < code > Ctrl-n< / code > < / td > < td > Next entry< / td > < / tr >
< tr > < td > < code > Ctrl-space< / code > < / td > < td > Filter options< / td > < / tr >
< tr > < td > < code > Enter< / code > < / td > < td > Open selected< / td > < / tr >
< tr > < td > < code > Ctrl-s< / code > < / td > < td > Open horizontally< / td > < / tr >
< tr > < td > < code > Ctrl-v< / code > < / td > < td > Open vertically< / td > < / tr >
< tr > < td > < code > Escape< / code > , < code > Ctrl-c< / code > < / td > < td > Close picker< / td > < / tr >
< / tbody > < / table >
< h1 id = "prompt" > < a class = "header" href = "#prompt" > Prompt< / a > < / h1 >
< p > Keys to use within prompt, Remapping currently not supported.
| Key | Description |
| ----- | ------------- |
| < code > Escape< / code > , < code > Ctrl-c< / code > | Close prompt |
| < code > Alt-b< / code > , < code > Alt-Left< / code > | Backward a word |
| < code > Ctrl-b< / code > , < code > Left< / code > | Backward a char |
| < code > Alt-f< / code > , < code > Alt-Right< / code > | Forward a word |
| < code > Ctrl-f< / code > , < code > Right< / code > | Forward a char |
| < code > Ctrl-e< / code > , < code > End< / code > | move prompt end |
| < code > Ctrl-a< / code > , < code > Home< / code > | move prompt start |
| < code > Ctrl-w< / code > | delete previous word |
| < code > Ctrl-k< / code > | delete to end of line |
| < code > backspace< / code > | delete previous char |
| < code > Ctrl-s< / code > | insert a word under doc cursor, may be changed to Ctrl-r Ctrl-w later |
| < code > Ctrl-p< / code > , < code > Up< / code > | select previous history |
| < code > Ctrl-n< / code > , < code > Down< / code > | select next history |
| < code > Tab< / code > | slect next completion item |
| < code > BackTab< / code > | slect previous completion item |
| < code > Enter< / code > | Open selected |< / p >
< div style = "break-before: page; page-break-before: always;" > < / div > < h1 id = "key-remapping" > < a class = "header" href = "#key-remapping" > Key Remapping< / a > < / h1 >
< p > One-way key remapping is temporarily supported via a simple TOML configuration
file. (More powerful solutions such as rebinding via commands will be
available in the future).< / p >
< p > To remap keys, write a < code > config.toml< / code > file in your < code > helix< / code > configuration
directory (default < code > ~/.config/helix< / code > in Linux systems) with a structure like
this:< / p >
< pre > < code class = "language-toml" > # At most one section each of 'keys.normal', 'keys.insert' and 'keys.select'
[keys.normal]
a = " move_char_left" # Maps the 'a' key to the move_char_left command
w = " move_line_up" # Maps the 'w' key move_line_up
" C-S-esc" = " extend_line" # Maps Control-Shift-Escape to extend_line
g = { a = " code_action" } # Maps `ga` to show possible code actions
[keys.insert]
" A-x" = " normal_mode" # Maps Alt-X to enter normal mode
j = { k = " normal_mode" } # Maps `jk` to exit insert mode
< / code > < / pre >
< p > Control, Shift and Alt modifiers are encoded respectively with the prefixes
< code > C-< / code > , < code > S-< / code > and < code > A-< / code > . Special keys are encoded as follows:< / p >
< table > < thead > < tr > < th > Key name< / th > < th > Representation< / th > < / tr > < / thead > < tbody >
< tr > < td > Backspace< / td > < td > < code > " backspace" < / code > < / td > < / tr >
< tr > < td > Space< / td > < td > < code > " space" < / code > < / td > < / tr >
< tr > < td > Return/Enter< / td > < td > < code > " ret" < / code > < / td > < / tr >
< tr > < td > < < / td > < td > < code > " lt" < / code > < / td > < / tr >
< tr > < td > > < / td > < td > < code > " gt" < / code > < / td > < / tr >
< tr > < td > +< / td > < td > < code > " plus" < / code > < / td > < / tr >
< tr > < td > -< / td > < td > < code > " minus" < / code > < / td > < / tr >
< tr > < td > ;< / td > < td > < code > " semicolon" < / code > < / td > < / tr >
< tr > < td > %< / td > < td > < code > " percent" < / code > < / td > < / tr >
< tr > < td > Left< / td > < td > < code > " left" < / code > < / td > < / tr >
< tr > < td > Right< / td > < td > < code > " right" < / code > < / td > < / tr >
< tr > < td > Up< / td > < td > < code > " up" < / code > < / td > < / tr >
< tr > < td > Home< / td > < td > < code > " home" < / code > < / td > < / tr >
< tr > < td > End< / td > < td > < code > " end" < / code > < / td > < / tr >
< tr > < td > Page< / td > < td > < code > " pageup" < / code > < / td > < / tr >
< tr > < td > Page< / td > < td > < code > " pagedown" < / code > < / td > < / tr >
< tr > < td > Tab< / td > < td > < code > " tab" < / code > < / td > < / tr >
< tr > < td > Back< / td > < td > < code > " backtab" < / code > < / td > < / tr >
< tr > < td > Delete< / td > < td > < code > " del" < / code > < / td > < / tr >
< tr > < td > Insert< / td > < td > < code > " ins" < / code > < / td > < / tr >
< tr > < td > Null< / td > < td > < code > " null" < / code > < / td > < / tr >
< tr > < td > Escape< / td > < td > < code > " esc" < / code > < / td > < / tr >
< / tbody > < / table >
< p > Keys can be disabled by binding them to the < code > no_op< / code > command.< / p >
< p > Commands can be found in the source code at < a href = "https://github.com/helix-editor/helix/blob/master/helix-term/src/commands.rs" > < code > helix-term/src/commands.rs< / code > < / a > < / p >
< div style = "break-before: page; page-break-before: always;" > < / div > < h1 id = "hooks" > < a class = "header" href = "#hooks" > Hooks< / a > < / h1 >
< div style = "break-before: page; page-break-before: always;" > < / div > < h1 id = "guides" > < a class = "header" href = "#guides" > Guides< / a > < / h1 >
< p > This section contains guides for adding new language server configurations,
tree-sitter grammers, textobject queries, etc.< / p >
< div style = "break-before: page; page-break-before: always;" > < / div > < h1 id = "adding-textobject-queries" > < a class = "header" href = "#adding-textobject-queries" > Adding Textobject Queries< / a > < / h1 >
< p > Textobjects that are language specific (< a href = "guides/../usage.html#textobjects" > like functions, classes, etc< / a > )
require an accompanying tree-sitter grammar and a < code > textobjects.scm< / code > query file
to work properly. Tree-sitter allows us to query the source code syntax tree
and capture specific parts of it. The queries are written in a lisp dialect.
More information on how to write queries can be found in the < a href = "guides/tree-sitter-queries" > official tree-sitter
documentation< / a > .< / p >
< p > Query files should be placed in < code > runtime/queries/{language}/textobjects.scm< / code >
when contributing. Note that to test the query files locally you should put
them under your local runtime directory (< code > ~/.config/helix/runtime< / code > on Linux
for example).< / p >
< p > The following < a href = "https://tree-sitter.github.io/tree-sitter/using-parsers#capturing-nodes" > captures< / a > are recognized:< / p >
< table > < thead > < tr > < th > Capture Name< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > function.inside< / code > < / td > < / tr >
< tr > < td > < code > function.around< / code > < / td > < / tr >
< tr > < td > < code > class.inside< / code > < / td > < / tr >
< tr > < td > < code > class.around< / code > < / td > < / tr >
< tr > < td > < code > parameter.inside< / code > < / td > < / tr >
< / tbody > < / table >
< p > < a href = "https://github.com/search?q=repo%3Ahelix-editor%2Fhelix+filename%3Atextobjects.scm&type=Code&ref=advsearch&l=&l=" > Example query files< / a > can be found in the helix GitHub repository.< / p >
< / main >
< nav class = "nav-wrapper" aria-label = "Page navigation" >
<!-- Mobile navigation buttons -->
< div style = "clear: both" > < / div >
< / nav >
< / div >
< / div >
< nav class = "nav-wide-wrapper" aria-label = "Page navigation" >
< / nav >
< / div >
< script type = "text/javascript" >
window.playground_copyable = true;
< / script >
< script src = "elasticlunr.min.js" type = "text/javascript" charset = "utf-8" > < / script >
< script src = "mark.min.js" type = "text/javascript" charset = "utf-8" > < / script >
< script src = "searcher.js" type = "text/javascript" charset = "utf-8" > < / script >
< script src = "clipboard.min.js" type = "text/javascript" charset = "utf-8" > < / script >
< script src = "highlight.js" type = "text/javascript" charset = "utf-8" > < / script >
< script src = "book.js" type = "text/javascript" charset = "utf-8" > < / script >
<!-- Custom JS scripts -->
< script type = "text/javascript" >
window.addEventListener('load', function() {
window.setTimeout(window.print, 100);
});
< / script >
< / body >
< / html >
