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feat: bind Ctrl-U to backward line deletion

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Valdemar Høgsvig Lorenzen
2026-10-12 18:27:58 +02:00
parent 2260817fc0
commit 1cd56cf3f6
4 changed files with 67 additions and 7 deletions
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docs/configuration.md
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@@ -126,9 +126,9 @@ Key notation follows [Herdr's readable style](https://herdr.dev/docs/configurati
Normal mode binds `ctrl+o` to `config.core.jump_back` and `ctrl+i`/`tab` to `config.core.jump_forward`. Insert-mode Tab inserts literal text outside snippets; inside one it moves to the next argument. Override or disable these keys with the ordinary per-mode binding interface; jump actions also appear in the command palette.
`config.core.backspace_word` and `config.core.backspace_line` are typed actions eligible in Insert, Command, and Search. Any platform can explicitly bind them to supported keys; only macOS defaults bind Option+Backspace and Command+Backspace respectively. For example, `config.bind "ctrl+w", config.core.backspace_word, mode: config.modes.insert`. Word deletion follows Unicode word boundaries after skipping trailing whitespace; line deletion removes the caret-to-logical-line-start prefix, not the suffix or newline. Active snippets confine both actions to their argument. macOS prompt and filter queries also recognize these modified Backspace keys.
`config.core.backspace_word` and `config.core.backspace_line` are typed actions eligible in Insert, Command, and Search. Ctrl+u defaults to `config.core.backspace_line` in all three modes on every platform; it can be rebound or disabled with the ordinary per-mode binding interface. macOS additionally defaults Option+Backspace and Command+Backspace to word and line deletion respectively. Any platform can explicitly bind these actions to supported keys; for example, `config.bind "ctrl+w", config.core.backspace_word, mode: config.modes.insert`. Word deletion follows Unicode word boundaries after skipping trailing whitespace; line deletion removes the caret-to-logical-line-start prefix, not the suffix or newline. Active snippets confine both actions to their argument. macOS prompt and filter queries also recognize these modified Backspace keys.
Configuration accepts the Option/Alt and Command/Super Backspace names on every platform, but terminal modifier-event translation for these keys is macOS-only. The terminal must deliver Option or Super (Command in Kitty CSI-u); Meta is not Command. Some terminals intercept Command+Backspace or encode it as Ctrl+u instead, which does not invoke the default line-deletion action. Legacy ESC+DEL supports Option+Backspace without keyboard protocol negotiation.
Configuration accepts the Option/Alt and Command/Super Backspace names on every platform, but terminal modifier-event translation for these keys is macOS-only. Native modifier events must deliver Option or Super (Command in Kitty CSI-u); Meta is not Command. Ghostty's default Command+Backspace encoding is Ctrl+u (`\x15`), which invokes the same line-deletion action without a Ghostty override. It remains a distinct Ctrl+u binding, not a reconstructed Command modifier. Legacy ESC+DEL supports Option+Backspace without keyboard protocol negotiation.
Normal mode uses literal `_` and `|` for above/below and left/right splits, and `alt+h/j/k/l` for directional pane focus. Bind the produced punctuation rather than a physical Shift combination. Close actions have no default binding; for example, `config.bind "leader x", config.core.pane.close`. See [panes and splits](editing.md#panes-and-splits) for shared-buffer and unsaved-change policies.