You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
helix/print.html

668 lines
46 KiB
HTML

<!DOCTYPE HTML>
<html lang="en" class="sidebar-visible no-js light">
<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 ? "navy" : "light";
</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('light')
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></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 (default)</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</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>Binary packages are 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>
<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>&quot;</code> being used to select a register:</p>
<ul>
<li><code>&quot;ay</code> - Yank the current selection to register <code>a</code>.</li>
<li><code>&quot;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>&quot;hc</code> - Store the selection in register <code>h</code> and then change it (delete and enter insert mode).</li>
<li><code>&quot;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>&quot;</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&lt;char&gt;</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>.</p>
<p><img src="https://user-images.githubusercontent.com/23398472/124231131-81a4bb00-db2d-11eb-9d10-8e577ca7b177.gif" alt="textobject-demo" /></p>
<ul>
<li><code>ma</code> - Select around the object (<code>va</code> in vim, <code>&lt;alt-a&gt;</code> in kakoune)</li>
<li><code>mi</code> - Select inside the object (<code>vi</code> in vim, <code>&lt;alt-i&gt;</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>
</tbody></table>
<p>Textobjects based on treesitter, like <code>function</code>, <code>class</code>, etc are planned.</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>
<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="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 = &lt;name&gt;</code> to your <a href="./configuration.html"><code>config.toml</code></a> or override it during runtime using <code>:theme &lt;name&gt;</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 = &quot;#ffffff&quot;, bg = &quot;#000000&quot;, modifiers = [&quot;bold&quot;, &quot;italic&quot;] }
</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 = &quot;#ffffff&quot;
</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">&quot;key.key&quot; = &quot;#ffffff&quot;
</code></pre>
<p>Possible modifiers:</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>
<p>Possible keys:</p>
<table><thead><tr><th>Key</th><th>Notes</th></tr></thead><tbody>
<tr><td><code>attribute</code></td><td></td></tr>
<tr><td><code>keyword</code></td><td></td></tr>
<tr><td><code>keyword.directive</code></td><td>Preprocessor directives (#if in C)</td></tr>
<tr><td><code>keyword.control</code></td><td>Control flow</td></tr>
<tr><td><code>namespace</code></td><td></td></tr>
<tr><td><code>punctuation</code></td><td></td></tr>
<tr><td><code>punctuation.delimiter</code></td><td></td></tr>
<tr><td><code>operator</code></td><td></td></tr>
<tr><td><code>special</code></td><td></td></tr>
<tr><td><code>property</code></td><td></td></tr>
<tr><td><code>variable</code></td><td></td></tr>
<tr><td><code>variable.parameter</code></td><td></td></tr>
<tr><td><code>type</code></td><td></td></tr>
<tr><td><code>type.builtin</code></td><td></td></tr>
<tr><td><code>type.enum.variant</code></td><td>Enum variants</td></tr>
<tr><td><code>constructor</code></td><td></td></tr>
<tr><td><code>function</code></td><td></td></tr>
<tr><td><code>function.macro</code></td><td></td></tr>
<tr><td><code>function.builtin</code></td><td></td></tr>
<tr><td><code>comment</code></td><td></td></tr>
<tr><td><code>variable.builtin</code></td><td></td></tr>
<tr><td><code>constant</code></td><td></td></tr>
<tr><td><code>constant.builtin</code></td><td></td></tr>
<tr><td><code>string</code></td><td></td></tr>
<tr><td><code>number</code></td><td></td></tr>
<tr><td><code>escape</code></td><td>Escaped characters</td></tr>
<tr><td><code>label</code></td><td>For lifetimes</td></tr>
<tr><td><code>module</code></td><td></td></tr>
<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></td></tr>
<tr><td><code>ui.statusline.inactive</code></td><td></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>LSP warning</td></tr>
<tr><td><code>error</code></td><td>LSP error</td></tr>
<tr><td><code>info</code></td><td>LSP info</td></tr>
<tr><td><code>hint</code></td><td>LSP hint</td></tr>
</tbody></table>
<p>These keys match <a href="https://tree-sitter.github.io/tree-sitter/syntax-highlighting#theme">tree-sitter scopes</a>. We half-follow the common scopes from <a href="https://macromates.com/manual/en/language_grammars">macromates language grammars</a> with some differences.</p>
<p>For a given highlight produced, styling will be determined based on the longest matching theme key. So it's enough to provide function to highlight <code>function.macro</code> and <code>function.builtin</code> as well, but you can use more specific scopes to highlight specific cases differently.</p>
<h2 id="color-palettes"><a class="header" href="#color-palettes">Color palettes</a></h2>
<p>You can 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 = &quot;white&quot;
ui.text = &quot;black&quot;
[palette]
white = &quot;#ffffff&quot;
black = &quot;#000000&quot;
</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>
<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: <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_char_right</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_line_down</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>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 TODO: conflicts tab</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>Ctrl-w</code></td><td>Enter <a href="keymap.html#window-mode">window mode</a> (maybe will be remove for spc w w later)</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>
<tr><td><code>K</code></td><td>Show documentation for the item under the cursor</td><td><code>hover</code></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>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>&quot;</code> <code>&lt;reg&gt;</code></td><td>Select a register to yank to or paste from</td><td><code>select_register</code></td></tr>
<tr><td><code>&gt;</code></td><td>Indent selection</td><td><code>indent</code></td></tr>
<tr><td><code>&lt;</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>
<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>C</code></td><td>Copy selection onto the next line</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</td><td><code>copy_selection_on_prev_line</code></td></tr>
<tr><td><code>(</code></td><td>Rotate main selection forward</td><td><code>rotate_selections_backward</code></td></tr>
<tr><td><code>)</code></td><td>Rotate main selection backward</td><td><code>rotate_selections_forward</code></td></tr>
<tr><td><code>Alt-(</code></td><td>Rotate selection contents forward</td><td><code>rotate_selection_contents_backward</code></td></tr>
<tr><td><code>Alt-)</code></td><td>Rotate selection contents backward</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 TODO: overlapped by hover help</td><td><code>keep_selections</code></td></tr>
<tr><td><code>Space</code></td><td>Keep only the primary selection TODO: overlapped by space mode</td><td><code>keep_primary_selection</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="insert-mode"><a class="header" href="#insert-mode">Insert Mode</a></h3>
<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>
<h3 id="search"><a class="header" href="#search">Search</a></h3>
<blockquote>
<p>TODO: The search implementation isn't ideal yet -- we don't support searching
in reverse, or searching via smartcase.</p>
</blockquote>
<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>n</code></td><td>Select next search match</td><td><code>search_next</code></td></tr>
<tr><td><code>N</code></td><td>Add next search match to selection</td><td><code>extend_search_next</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="unimpaired"><a class="header" href="#unimpaired">Unimpaired</a></h3>
<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>
<h3 id="shell"><a class="header" href="#shell">Shell</a></h3>
<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>
<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>
</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 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>
<h2 id="view-mode"><a class="header" href="#view-mode">View mode</a></h2>
<p>View mode is intended for scrolling and manipulating the view without changing
the selection.</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>
</tbody></table>
<h2 id="goto-mode"><a class="header" href="#goto-mode">Goto mode</a></h2>
<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>
</tbody></table>
<h2 id="match-mode"><a class="header" href="#match-mode">Match mode</a></h2>
<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>&lt;char&gt;</code></td><td>Surround current selection with <code>&lt;char&gt;</code></td><td><code>surround_add</code></td></tr>
<tr><td><code>r</code> <code>&lt;from&gt;&lt;to&gt;</code></td><td>Replace surround character <code>&lt;from&gt;</code> with <code>&lt;to&gt;</code></td><td><code>surround_replace</code></td></tr>
<tr><td><code>d</code> <code>&lt;char&gt;</code></td><td>Delete surround character <code>&lt;char&gt;</code></td><td><code>surround_delete</code></td></tr>
<tr><td><code>a</code> <code>&lt;object&gt;</code></td><td>Select around textobject</td><td><code>select_textobject_around</code></td></tr>
<tr><td><code>i</code> <code>&lt;object&gt;</code></td><td>Select inside textobject</td><td><code>select_textobject_inner</code></td></tr>
</tbody></table>
<h2 id="object-mode"><a class="header" href="#object-mode">Object mode</a></h2>
<p>TODO: Mappings for selecting syntax nodes (a superset of <code>[</code>).</p>
<h2 id="window-mode"><a class="header" href="#window-mode">Window mode</a></h2>
<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>h</code>, <code>Ctrl-h</code></td><td>Horizontal bottom split</td><td><code>hsplit</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>
<h2 id="space-mode"><a class="header" href="#space-mode">Space mode</a></h2>
<p>This layer is a kludge of mappings I had under leader key in neovim.</p>
<table><thead><tr><th>Key</th><th>Description</th><th>Command</th></tr></thead><tbody>
<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>space</code></td><td>Keep primary selection TODO: it's here because space mode replaced it</td><td><code>keep_primary_selection</code></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>
</tbody></table>
<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-p</code></td><td>Previous entry</td></tr>
<tr><td><code>Down</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-h</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>
<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 feature).</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 = &quot;move_char_left&quot; # Maps the 'a' key to the move_char_left command
w = &quot;move_line_up&quot; # Maps the 'w' key move_line_up
&quot;C-S-esc&quot; = &quot;extend_line&quot; # Maps Control-Shift-Escape to extend_line
g = { a = &quot;code_action&quot; } # Maps `ga` to show possible code actions
[keys.insert]
&quot;A-x&quot; = &quot;normal_mode&quot; # Maps Alt-X to enter normal mode
j = { k = &quot;normal_mode&quot; } # 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>&quot;backspace&quot;</code></td></tr>
<tr><td>Space</td><td><code>&quot;space&quot;</code></td></tr>
<tr><td>Return/Enter</td><td><code>&quot;ret&quot;</code></td></tr>
<tr><td>&lt;</td><td><code>&quot;lt&quot;</code></td></tr>
<tr><td>&gt;</td><td><code>&quot;gt&quot;</code></td></tr>
<tr><td>+</td><td><code>&quot;plus&quot;</code></td></tr>
<tr><td>-</td><td><code>&quot;minus&quot;</code></td></tr>
<tr><td>;</td><td><code>&quot;semicolon&quot;</code></td></tr>
<tr><td>%</td><td><code>&quot;percent&quot;</code></td></tr>
<tr><td>Left</td><td><code>&quot;left&quot;</code></td></tr>
<tr><td>Right</td><td><code>&quot;right&quot;</code></td></tr>
<tr><td>Up</td><td><code>&quot;up&quot;</code></td></tr>
<tr><td>Home</td><td><code>&quot;home&quot;</code></td></tr>
<tr><td>End</td><td><code>&quot;end&quot;</code></td></tr>
<tr><td>Page</td><td><code>&quot;pageup&quot;</code></td></tr>
<tr><td>Page</td><td><code>&quot;pagedown&quot;</code></td></tr>
<tr><td>Tab</td><td><code>&quot;tab&quot;</code></td></tr>
<tr><td>Back</td><td><code>&quot;backtab&quot;</code></td></tr>
<tr><td>Delete</td><td><code>&quot;del&quot;</code></td></tr>
<tr><td>Insert</td><td><code>&quot;ins&quot;</code></td></tr>
<tr><td>Null</td><td><code>&quot;null&quot;</code></td></tr>
<tr><td>Escape</td><td><code>&quot;esc&quot;</code></td></tr>
</tbody></table>
<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>
</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>