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fix(tui): route Ctrl+K and Ctrl+W through macOS readline fallback

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Makes Ctrl+K and Ctrl+W work in hermes --tui mode in macOS
This commit is contained in:
Dylan Socolobsky 2026-04-22 11:14:36 -03:00 • committed by Teknium
parent b49a1b71a7
commit ea9ddecc72
3 changed files with 31 additions and 7 deletions
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13
ui-tui/src/lib/platform.ts
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@ -16,15 +16,18 @@ export const isActionMod = (key: { ctrl: boolean; meta: boolean; super?: boolean
isMac ? key.meta || key.super === true : key.ctrl
/**
* Some macOS terminals rewrite Cmd navigation/deletion into readline control keys.
* Treat those as action shortcuts too, but only for the specific fallbacks we
* have observed from terminals: Cmd+Left → Ctrl+A, Cmd+Right → Ctrl+E,
* Cmd+Backspace → Ctrl+U.
* Accept raw Ctrl+<letter> as an action shortcut on macOS, where `isActionMod`
* otherwise means Cmd. Two motivations:
* - Some macOS terminals rewrite Cmd navigation/deletion into readline control
* keys (Cmd+Left → Ctrl+A, Cmd+Right → Ctrl+E, Cmd+Backspace → Ctrl+U).
* - Ctrl+K (kill-to-end) and Ctrl+W (delete-word-back) are standard readline
* bindings that users expect to work regardless of platform, even though
* no terminal rewrites Cmd into them.
*/
export const isMacActionFallback = (
key: { ctrl: boolean; meta: boolean; super?: boolean },
ch: string,
target: 'a' | 'e' | 'u'
target: 'a' | 'e' | 'u' | 'k' | 'w'
): boolean => isMac && key.ctrl && !key.meta && key.super !== true && ch.toLowerCase() === target
/** Match action-modifier + a single character (case-insensitive). */