mirror of https://github.com/helix-editor/helix
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.
361 lines
22 KiB
HTML
361 lines
22 KiB
HTML
<!DOCTYPE HTML>
|
|
<html lang="en" class="sidebar-visible no-js colibri">
|
|
<head>
|
|
<!-- Book generated using mdBook -->
|
|
<meta charset="UTF-8">
|
|
<title>Usage</title>
|
|
|
|
|
|
<!-- 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 affix "><a href="title-page.html">Helix</a></li><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" class="active"><strong aria-hidden="true">2.</strong> Usage</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="keymap.html"><strong aria-hidden="true">2.1.</strong> Keymap</a></li><li class="chapter-item expanded "><a href="commands.html"><strong aria-hidden="true">2.2.</strong> Commands</a></li><li class="chapter-item expanded "><a href="lang-support.html"><strong aria-hidden="true">2.3.</strong> Language support</a></li></ol></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="remapping.html"><strong aria-hidden="true">4.2.</strong> Key remapping</a></li><li class="chapter-item expanded "><a href="languages.html"><strong aria-hidden="true">4.3.</strong> Languages</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/adding_languages.html"><strong aria-hidden="true">5.1.</strong> Adding languages</a></li><li class="chapter-item expanded "><a href="guides/textobject.html"><strong aria-hidden="true">5.2.</strong> Adding textobject queries</a></li><li class="chapter-item expanded "><a href="guides/indent.html"><strong aria-hidden="true">5.3.</strong> Adding indent queries</a></li><li class="chapter-item expanded "><a href="guides/injection.html"><strong aria-hidden="true">5.4.</strong> Adding injection 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>
|
|
<a href="https://github.com/helix-editor/helix" title="Git repository" aria-label="Git repository">
|
|
<i id="git-repository-button" class="fa fa-github"></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="using-helix"><a class="header" href="#using-helix">Using Helix</a></h1>
|
|
<!--toc:start-->
|
|
<ul>
|
|
<li><a href="#registers">Registers</a>
|
|
<ul>
|
|
<li><a href="#user-defined-registers">User-defined registers</a></li>
|
|
<li><a href="#special-registers">Special registers</a></li>
|
|
</ul>
|
|
</li>
|
|
<li><a href="#surround">Surround</a></li>
|
|
<li><a href="#selecting-and-manipulating-text-with-textobjects">Selecting and manipulating text with textobjects</a></li>
|
|
<li><a href="#navigating-using-tree-sitter-textobjects">Navigating using tree-sitter textobjects</a></li>
|
|
<li><a href="#moving-the-selection-with-syntax-aware-motions">Moving the selection with syntax-aware motions</a></li>
|
|
</ul>
|
|
<!--toc:end-->
|
|
<p>For a full interactive introduction to Helix, refer to the
|
|
<a href="https://github.com/helix-editor/helix/blob/master/runtime/tutor">tutor</a> which
|
|
can be accessed via the command <code>hx --tutor</code> or <code>:tutor</code>.</p>
|
|
<blockquote>
|
|
<p>💡 Currently, not all functionality is fully documented, please refer to the
|
|
<a href="./keymap.html">key mappings</a> list.</p>
|
|
</blockquote>
|
|
<h2 id="registers"><a class="header" href="#registers">Registers</a></h2>
|
|
<p>In Helix, registers are storage locations for text and other data, such as the
|
|
result of a search. Registers can be used to cut, copy, and paste text, similar
|
|
to the clipboard in other text editors. Usage is similar to Vim, with <code>"</code> being
|
|
used to select a register.</p>
|
|
<h3 id="user-defined-registers"><a class="header" href="#user-defined-registers">User-defined registers</a></h3>
|
|
<p>Helix allows you to create your own named registers for storing text, for
|
|
example:</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 a register is selected 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>
|
|
<div class="table-wrapper"><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>
|
|
<tr><td><code>_</code></td><td>Black hole</td></tr>
|
|
</tbody></table>
|
|
</div>
|
|
<p>The system clipboard is not directly supported by a special register. Instead, special commands and keybindings are provided. Refer to the
|
|
<a href="keymap.html#space-mode">key map</a> for more details.</p>
|
|
<p>The black hole register is a no-op register, meaning that no data will be read or written to it.</p>
|
|
<h2 id="surround"><a class="header" href="#surround">Surround</a></h2>
|
|
<p>Helix includes built-in functionality similar to <a href="https://github.com/tpope/vim-surround">vim-surround</a>.
|
|
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>
|
|
<div class="table-wrapper"><table><thead><tr><th>Key Sequence</th><th>Action</th></tr></thead><tbody>
|
|
<tr><td><code>ms<char></code> (after selecting text)</td><td>Add surround characters to selection</td></tr>
|
|
<tr><td><code>mr<char_to_replace><new_char></code></td><td>Replace the closest surround characters</td></tr>
|
|
<tr><td><code>md<char_to_delete></code></td><td>Delete the closest surround characters</td></tr>
|
|
</tbody></table>
|
|
</div>
|
|
<p>You can use counts to act on outer pairs.</p>
|
|
<p>Surround can also act on multiple selections. For example, to change every occurrence of <code>(use)</code> to <code>[use]</code>:</p>
|
|
<ol>
|
|
<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 parentheses with square brackets</li>
|
|
</ol>
|
|
<p>Multiple characters are currently not supported, but planned for future release.</p>
|
|
<h2 id="selecting-and-manipulating-text-with-textobjects"><a class="header" href="#selecting-and-manipulating-text-with-textobjects">Selecting and manipulating text with textobjects</a></h2>
|
|
<p>In Helix, textobjects are a way to select, manipulate and operate on a piece of
|
|
text in a structured way. They allow you to refer to blocks of text based on
|
|
their structure or purpose, such as a word, sentence, paragraph, or even a
|
|
function or block of 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 tree-sitter 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>
|
|
<div class="table-wrapper"><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>W</code></td><td>WORD</td></tr>
|
|
<tr><td><code>p</code></td><td>Paragraph</td></tr>
|
|
<tr><td><code>(</code>, <code>[</code>, <code>'</code>, etc.</td><td>Specified surround pairs</td></tr>
|
|
<tr><td><code>m</code></td><td>The closest surround pair</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>a</code></td><td>Argument/parameter</td></tr>
|
|
<tr><td><code>o</code></td><td>Comment</td></tr>
|
|
<tr><td><code>t</code></td><td>Test</td></tr>
|
|
<tr><td><code>g</code></td><td>Change</td></tr>
|
|
</tbody></table>
|
|
</div>
|
|
<blockquote>
|
|
<p>💡 <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="./lang-support.html">Only
|
|
some grammars</a> currently have the query file implemented.
|
|
Contributions are welcome!</p>
|
|
</blockquote>
|
|
<h2 id="navigating-using-tree-sitter-textobjects"><a class="header" href="#navigating-using-tree-sitter-textobjects">Navigating using tree-sitter textobjects</a></h2>
|
|
<p>Navigating between functions, classes, parameters, and other elements is
|
|
possible using tree-sitter and textobject queries. For
|
|
example to move to the next function use <code>]f</code>, to move to previous
|
|
class use <code>[c</code>, and so on.</p>
|
|
<p><img src="https://user-images.githubusercontent.com/23398472/152332550-7dfff043-36a2-4aec-b8f2-77c13eb56d6f.gif" alt="Tree-sitter-nav-demo" /></p>
|
|
<p>For the full reference see the <a href="./keymap.html#unimpaired">unimpaired</a> section of the key bind
|
|
documentation.</p>
|
|
<blockquote>
|
|
<p>💡 This feature relies on tree-sitter textobjects
|
|
and requires the corresponding query file to work properly.</p>
|
|
</blockquote>
|
|
<h2 id="moving-the-selection-with-syntax-aware-motions"><a class="header" href="#moving-the-selection-with-syntax-aware-motions">Moving the selection with syntax-aware motions</a></h2>
|
|
<p><code>Alt-p</code>, <code>Alt-o</code>, <code>Alt-i</code>, and <code>Alt-n</code> (or <code>Alt</code> and arrow keys) allow you to move the
|
|
selection according to its location in the syntax tree. For example, many languages have the
|
|
following syntax for function calls:</p>
|
|
<pre><code class="language-js">func(arg1, arg2, arg3);
|
|
</code></pre>
|
|
<p>A function call might be parsed by tree-sitter into a tree like the following.</p>
|
|
<pre><code class="language-tsq">(call
|
|
function: (identifier) ; func
|
|
arguments:
|
|
(arguments ; (arg1, arg2, arg3)
|
|
(identifier) ; arg1
|
|
(identifier) ; arg2
|
|
(identifier))) ; arg3
|
|
</code></pre>
|
|
<p>Use <code>:tree-sitter-subtree</code> to view the syntax tree of the primary selection. In
|
|
a more intuitive tree format:</p>
|
|
<pre><code> ┌────┐
|
|
│call│
|
|
┌─────┴────┴─────┐
|
|
│ │
|
|
┌─────▼────┐ ┌────▼────┐
|
|
│identifier│ │arguments│
|
|
│ "func" │ ┌────┴───┬─────┴───┐
|
|
└──────────┘ │ │ │
|
|
│ │ │
|
|
┌─────────▼┐ ┌────▼─────┐ ┌▼─────────┐
|
|
│identifier│ │identifier│ │identifier│
|
|
│ "arg1" │ │ "arg2" │ │ "arg3" │
|
|
└──────────┘ └──────────┘ └──────────┘
|
|
</code></pre>
|
|
<p>If you have a selection that wraps <code>arg1</code> (see the tree above), and you use
|
|
<code>Alt-n</code>, it will select the next sibling in the syntax tree: <code>arg2</code>.</p>
|
|
<pre><code class="language-js">// before
|
|
func([arg1], arg2, arg3)
|
|
// after
|
|
func(arg1, [arg2], arg3);
|
|
</code></pre>
|
|
<p>Similarly, <code>Alt-o</code> will expand the selection to the parent node, in this case, the
|
|
arguments node.</p>
|
|
<pre><code class="language-js">func[(arg1, arg2, arg3)];
|
|
</code></pre>
|
|
<p>There is also some nuanced behavior that prevents you from getting stuck on a
|
|
node with no sibling. When using <code>Alt-p</code> with a selection on <code>arg1</code>, the previous
|
|
child node will be selected. In the event that <code>arg1</code> does not have a previous
|
|
sibling, the selection will move up the syntax tree and select the previous
|
|
element. As a result, using <code>Alt-p</code> with a selection on <code>arg1</code> will move the
|
|
selection to the "func" <code>identifier</code>.</p>
|
|
|
|
</main>
|
|
|
|
<nav class="nav-wrapper" aria-label="Page navigation">
|
|
<!-- Mobile navigation buttons -->
|
|
<a rel="prev" href="install.html" class="mobile-nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
|
|
<i class="fa fa-angle-left"></i>
|
|
</a>
|
|
|
|
<a rel="next" href="keymap.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
|
|
<i class="fa fa-angle-right"></i>
|
|
</a>
|
|
|
|
<div style="clear: both"></div>
|
|
</nav>
|
|
</div>
|
|
</div>
|
|
|
|
<nav class="nav-wide-wrapper" aria-label="Page navigation">
|
|
<a rel="prev" href="install.html" class="nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
|
|
<i class="fa fa-angle-left"></i>
|
|
</a>
|
|
|
|
<a rel="next" href="keymap.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
|
|
<i class="fa fa-angle-right"></i>
|
|
</a>
|
|
</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 -->
|
|
|
|
|
|
</body>
|
|
</html>
|