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235 lines
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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 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="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" class="active"><strong aria-hidden="true">4.2.</strong> Key Remapping</a></li><li class="chapter-item expanded "><a href="hooks.html"><strong aria-hidden="true">4.3.</strong> Hooks</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></ol></li></ol>
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<main>
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<h1 id="key-remapping"><a class="header" href="#key-remapping">Key Remapping</a></h1>
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<p>One-way key remapping is temporarily supported via a simple TOML configuration
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file. (More powerful solutions such as rebinding via commands will be
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available in the future).</p>
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<p>To remap keys, write a <code>config.toml</code> file in your <code>helix</code> configuration
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directory (default <code>~/.config/helix</code> in Linux systems) with a structure like
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this:</p>
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<pre><code class="language-toml"># At most one section each of 'keys.normal', 'keys.insert' and 'keys.select'
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[keys.normal]
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C-s = ":w" # Maps the Control-s to the typable command :w which is an alias for :write (save file)
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C-o = ":open ~/.config/helix/config.toml" # Maps the Control-o to opening of the helix config file
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a = "move_char_left" # Maps the 'a' key to the move_char_left command
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w = "move_line_up" # Maps the 'w' key move_line_up
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"C-S-esc" = "extend_line" # Maps Control-Shift-Escape to extend_line
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g = { a = "code_action" } # Maps `ga` to show possible code actions
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"ret" = ["open_below", "normal_mode"] # Maps the enter key to open_below then re-enter normal mode
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[keys.insert]
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"A-x" = "normal_mode" # Maps Alt-X to enter normal mode
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j = { k = "normal_mode" } # Maps `jk` to exit insert mode
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</code></pre>
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<blockquote>
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<p>NOTE: Typable commands can also be remapped, remember to keep the <code>:</code> prefix to indicate it's a typable command.</p>
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</blockquote>
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<p>Control, Shift and Alt modifiers are encoded respectively with the prefixes
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<code>C-</code>, <code>S-</code> and <code>A-</code>. Special keys are encoded as follows:</p>
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<table><thead><tr><th>Key name</th><th>Representation</th></tr></thead><tbody>
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<tr><td>Backspace</td><td><code>"backspace"</code></td></tr>
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<tr><td>Space</td><td><code>"space"</code></td></tr>
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<tr><td>Return/Enter</td><td><code>"ret"</code></td></tr>
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<tr><td><</td><td><code>"lt"</code></td></tr>
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<tr><td>></td><td><code>"gt"</code></td></tr>
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<tr><td>+</td><td><code>"plus"</code></td></tr>
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<tr><td>-</td><td><code>"minus"</code></td></tr>
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<tr><td>;</td><td><code>"semicolon"</code></td></tr>
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<tr><td>%</td><td><code>"percent"</code></td></tr>
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<tr><td>Left</td><td><code>"left"</code></td></tr>
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<tr><td>Right</td><td><code>"right"</code></td></tr>
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<tr><td>Up</td><td><code>"up"</code></td></tr>
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<tr><td>Down</td><td><code>"down"</code></td></tr>
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<tr><td>Home</td><td><code>"home"</code></td></tr>
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<tr><td>End</td><td><code>"end"</code></td></tr>
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<tr><td>Page Up</td><td><code>"pageup"</code></td></tr>
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<tr><td>Page Down</td><td><code>"pagedown"</code></td></tr>
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<tr><td>Tab</td><td><code>"tab"</code></td></tr>
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<tr><td>Delete</td><td><code>"del"</code></td></tr>
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<tr><td>Insert</td><td><code>"ins"</code></td></tr>
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<tr><td>Null</td><td><code>"null"</code></td></tr>
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<tr><td>Escape</td><td><code>"esc"</code></td></tr>
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</tbody></table>
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<p>Keys can be disabled by binding them to the <code>no_op</code> command.</p>
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<p>Commands can be found at <a href="https://docs.helix-editor.com/keymap.html">Keymap</a> Commands.</p>
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<blockquote>
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<p>Commands can also 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> at the invocation of <code>static_commands!</code> macro and the <code>TypableCommandList</code>.</p>
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</blockquote>
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