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281 lines
17 KiB
HTML
281 lines
17 KiB
HTML
6 months ago
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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" class="active"><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"><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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</div>
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<script>
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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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<h2 id="registers"><a class="header" href="#registers">Registers</a></h2>
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<ul>
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<li><a href="#user-defined-registers">User-defined registers</a></li>
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<li><a href="#default-registers">Default registers</a></li>
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<li><a href="#special-registers">Special registers</a></li>
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</ul>
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<p>In Helix, registers are storage locations for text and other data, such as the
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result of a search. Registers can be used to cut, copy, and paste text, similar
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to the clipboard in other text editors. Usage is similar to Vim, with <code>"</code> being
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used to select a register.</p>
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<h3 id="user-defined-registers"><a class="header" href="#user-defined-registers">User-defined registers</a></h3>
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<p>Helix allows you to create your own named registers for storing text, for
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example:</p>
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<ul>
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<li><code>"ay</code> - Yank the current selection to register <code>a</code>.</li>
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<li><code>"op</code> - Paste the text in register <code>o</code> after the selection.</li>
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</ul>
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<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>
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<ul>
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<li><code>"hc</code> - Store the selection in register <code>h</code> and then change it (delete and enter insert mode).</li>
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<li><code>"md</code> - Store the selection in register <code>m</code> and delete it.</li>
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</ul>
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<h3 id="default-registers"><a class="header" href="#default-registers">Default registers</a></h3>
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<p>Commands that use registers, like yank (<code>y</code>), use a default register if none is specified.
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These registers are used as defaults:</p>
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<div class="table-wrapper"><table><thead><tr><th>Register character</th><th>Contains</th></tr></thead><tbody>
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<tr><td><code>/</code></td><td>Last search</td></tr>
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<tr><td><code>:</code></td><td>Last executed command</td></tr>
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<tr><td><code>"</code></td><td>Last yanked text</td></tr>
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<tr><td><code>@</code></td><td>Last recorded macro</td></tr>
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</tbody></table>
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</div>
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<h3 id="special-registers"><a class="header" href="#special-registers">Special registers</a></h3>
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<p>Some registers have special behavior when read from and written to.</p>
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<div class="table-wrapper"><table><thead><tr><th>Register character</th><th>When read</th><th>When written</th></tr></thead><tbody>
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<tr><td><code>_</code></td><td>No values are returned</td><td>All values are discarded</td></tr>
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<tr><td><code>#</code></td><td>Selection indices (first selection is <code>1</code>, second is <code>2</code>, etc.)</td><td>This register is not writable</td></tr>
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<tr><td><code>.</code></td><td>Contents of the current selections</td><td>This register is not writable</td></tr>
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<tr><td><code>%</code></td><td>Name of the current file</td><td>This register is not writable</td></tr>
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<tr><td><code>+</code></td><td>Reads from the system clipboard</td><td>Joins and yanks to the system clipboard</td></tr>
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<tr><td><code>*</code></td><td>Reads from the primary clipboard</td><td>Joins and yanks to the primary clipboard</td></tr>
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</tbody></table>
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</div>
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<p>When yanking multiple selections to the clipboard registers, the selections
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are joined with newlines. Pasting from these registers will paste multiple
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selections if the clipboard was last yanked to by the Helix session. Otherwise
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the clipboard contents are pasted as one selection.</p>
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</main>
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