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fix(tui): add Kitty CSI-u printable decoding to Input component, closes #1857

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This commit is contained in:
Mario Zechner 2026-03-06 00:33:58 +01:00
parent 863135d429
commit 9bcf06c056
6 changed files with 74 additions and 43 deletions
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11
packages/tui/src/components/input.ts
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@ -1,4 +1,5 @@
import { getEditorKeybindings } from "../keybindings.js";
import { decodeKittyPrintable } from "../keys.js";
import { KillRing } from "../kill-ring.js";
import { type Component, CURSOR_MARKER, type Focusable } from "../tui.js";
import { UndoStack } from "../undo-stack.js";
@ -187,6 +188,16 @@ export class Input implements Component, Focusable {
return;
}
// Kitty CSI-u printable character (e.g. \x1b[97u for 'a').
// Terminals with Kitty protocol flag 1 (disambiguate) send CSI-u for all keys,
// including plain printable characters. Decode before the control-char check
// since CSI-u sequences contain \x1b which would be rejected.
const kittyPrintable = decodeKittyPrintable(data);
if (kittyPrintable !== undefined) {
this.insertCharacter(kittyPrintable);
return;
}
// Regular character input - accept printable characters including Unicode,
// but reject control characters (C0: 0x00-0x1F, DEL: 0x7F, C1: 0x80-0x9F)
const hasControlChars = [...data].some((ch) => {