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277 lines
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277 lines
16 KiB
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<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><ol class="section"><li class="chapter-item expanded "><a href="package-managers.html"><strong aria-hidden="true">1.1.</strong> Package Managers</a></li><li class="chapter-item expanded "><a href="building-from-source.html"><strong aria-hidden="true">1.2.</strong> Building from source</a></li></ol></li><li class="chapter-item expanded "><a href="usage.html"><strong aria-hidden="true">2.</strong> Usage</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="registers.html"><strong aria-hidden="true">2.1.</strong> Registers</a></li><li class="chapter-item expanded "><a href="surround.html"><strong aria-hidden="true">2.2.</strong> Surround</a></li><li class="chapter-item expanded "><a href="textobjects.html" class="active"><strong aria-hidden="true">2.3.</strong> Textobjects</a></li><li class="chapter-item expanded "><a href="syntax-aware-motions.html"><strong aria-hidden="true">2.4.</strong> Syntax aware motions</a></li><li class="chapter-item expanded "><a href="keymap.html"><strong aria-hidden="true">2.5.</strong> Keymap</a></li><li class="chapter-item expanded "><a href="commands.html"><strong aria-hidden="true">2.6.</strong> Commands</a></li><li class="chapter-item expanded "><a href="lang-support.html"><strong aria-hidden="true">2.7.</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="editor.html"><strong aria-hidden="true">4.1.</strong> Editor</a></li><li class="chapter-item expanded "><a href="themes.html"><strong aria-hidden="true">4.2.</strong> Themes</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="languages.html"><strong aria-hidden="true">4.4.</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>
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<main>
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<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>
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<p>In Helix, textobjects are a way to select, manipulate and operate on a piece of
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text in a structured way. They allow you to refer to blocks of text based on
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their structure or purpose, such as a word, sentence, paragraph, or even a
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function or block of code.</p>
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<p><img src="https://user-images.githubusercontent.com/23398472/124231131-81a4bb00-db2d-11eb-9d10-8e577ca7b177.gif" alt="Textobject demo" />
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<img src="https://user-images.githubusercontent.com/23398472/132537398-2a2e0a54-582b-44ab-a77f-eb818942203d.gif" alt="Textobject tree-sitter demo" /></p>
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<ul>
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<li><code>ma</code> - Select around the object (<code>va</code> in Vim, <code><alt-a></code> in Kakoune)</li>
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<li><code>mi</code> - Select inside the object (<code>vi</code> in Vim, <code><alt-i></code> in Kakoune)</li>
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</ul>
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<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>
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<tr><td><code>w</code></td><td>Word</td></tr>
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<tr><td><code>W</code></td><td>WORD</td></tr>
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<tr><td><code>p</code></td><td>Paragraph</td></tr>
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<tr><td><code>(</code>, <code>[</code>, <code>'</code>, etc.</td><td>Specified surround pairs</td></tr>
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<tr><td><code>m</code></td><td>The closest surround pair</td></tr>
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<tr><td><code>f</code></td><td>Function</td></tr>
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<tr><td><code>t</code></td><td>Type (or Class)</td></tr>
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<tr><td><code>a</code></td><td>Argument/parameter</td></tr>
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<tr><td><code>c</code></td><td>Comment</td></tr>
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<tr><td><code>T</code></td><td>Test</td></tr>
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<tr><td><code>g</code></td><td>Change</td></tr>
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</tbody></table>
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</div>
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<blockquote>
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<p>💡 <code>f</code>, <code>t</code>, etc. need a tree-sitter grammar active for the current
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document and a special tree-sitter query file to work properly. <a href="./lang-support.html">Only
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some grammars</a> currently have the query file implemented.
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Contributions are welcome!</p>
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</blockquote>
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<h2 id="navigating-using-tree-sitter-textobjects"><a class="header" href="#navigating-using-tree-sitter-textobjects">Navigating using tree-sitter textobjects</a></h2>
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<p>Navigating between functions, classes, parameters, and other elements is
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possible using tree-sitter and textobject queries. For
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example to move to the next function use <code>]f</code>, to move to previous
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type use <code>[t</code>, and so on.</p>
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<p><img src="https://user-images.githubusercontent.com/23398472/152332550-7dfff043-36a2-4aec-b8f2-77c13eb56d6f.gif" alt="Tree-sitter-nav-demo" /></p>
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<p>For the full reference see the <a href="./keymap.html#unimpaired">unimpaired</a> section of the key bind
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documentation.</p>
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<blockquote>
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<p>💡 This feature relies on tree-sitter textobjects
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and requires the corresponding query file to work properly.</p>
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</blockquote>
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