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194 lines
12 KiB
HTML
194 lines
12 KiB
HTML
3 years ago
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<!DOCTYPE HTML>
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<html lang="en" class="sidebar-visible no-js colibri">
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<head>
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<!-- Book generated using mdBook -->
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<meta charset="UTF-8">
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<title>Adding Textobject Queries</title>
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try {
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var theme = localStorage.getItem('mdbook-theme');
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try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
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if (theme === null || theme === undefined) { theme = default_theme; }
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var html = document.querySelector('html');
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html.classList.remove('no-js')
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html.classList.remove('colibri')
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html.classList.add(theme);
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html.classList.remove('sidebar-visible');
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html.classList.add("sidebar-" + sidebar);
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<nav id="sidebar" class="sidebar" aria-label="Table of contents">
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<div class="sidebar-scrollbox">
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<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" class="active"><strong aria-hidden="true">5.1.</strong> Adding Textobject Queries</a></li></ol></li></ol>
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<div id="search-wrapper" class="hidden">
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<form id="searchbar-outer" class="searchbar-outer">
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<input type="search" name="search" id="searchbar" name="searchbar" placeholder="Search this book ..." aria-controls="searchresults-outer" aria-describedby="searchresults-header">
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<script type="text/javascript">
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document.getElementById('sidebar-toggle').setAttribute('aria-expanded', sidebar === 'visible');
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document.getElementById('sidebar').setAttribute('aria-hidden', sidebar !== 'visible');
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Array.from(document.querySelectorAll('#sidebar a')).forEach(function(link) {
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link.setAttribute('tabIndex', sidebar === 'visible' ? 0 : -1);
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});
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</script>
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<div id="content" class="content">
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<main>
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<h1 id="adding-textobject-queries"><a class="header" href="#adding-textobject-queries">Adding Textobject Queries</a></h1>
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<p>Textobjects that are language specific (<a href="../usage.html#textobjects">like functions, classes, etc</a>)
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require an accompanying tree-sitter grammar and a <code>textobjects.scm</code> query file
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to work properly. Tree-sitter allows us to query the source code syntax tree
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and capture specific parts of it. The queries are written in a lisp dialect.
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More information on how to write queries can be found in the <a href="tree-sitter-queries">official tree-sitter
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documentation</a>.</p>
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<p>Query files should be placed in <code>runtime/queries/{language}/textobjects.scm</code>
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when contributing. Note that to test the query files locally you should put
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them under your local runtime directory (<code>~/.config/helix/runtime</code> on Linux
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for example).</p>
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<p>The following <a href="https://tree-sitter.github.io/tree-sitter/using-parsers#capturing-nodes">captures</a> are recognized:</p>
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<table><thead><tr><th>Capture Name</th></tr></thead><tbody>
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<tr><td><code>function.inside</code></td></tr>
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<tr><td><code>function.around</code></td></tr>
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<tr><td><code>class.inside</code></td></tr>
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<tr><td><code>class.around</code></td></tr>
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<tr><td><code>parameter.inside</code></td></tr>
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</tbody></table>
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<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>
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</main>
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<nav class="nav-wrapper" aria-label="Page navigation">
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<!-- Mobile navigation buttons -->
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<a rel="prev" href="../guides/index.html" class="mobile-nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
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</div>
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<a rel="prev" href="../guides/index.html" class="nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
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<script type="text/javascript">
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window.playground_copyable = true;
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</script>
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