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feat(tui): add Alt+D to delete word forward (kill)

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Adds deleteWordForward action bound to Alt+D, which deletes from cursor
to the end of the current word and saves to kill ring for later yanking.
Consecutive forward kills append to the same kill ring entry.
This commit is contained in:
Sviatoslav Abakumov 2026-01-17 18:54:23 +04:00 • committed by Mario Zechner
parent 9fb7434a06
commit 505894f4ea
4 changed files with 80 additions and 0 deletions
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44
packages/tui/src/components/editor.ts
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@ -646,6 +646,10 @@ export class Editor implements Component, Focusable {
this.deleteWordBackwards();
return;
}
if (kb.matches(data, "deleteWordForward")) {
this.deleteWordForward();
return;
}
if (kb.matches(data, "deleteCharBackward") || matchesKey(data, "shift+backspace")) {
this.handleBackspace();
return;
@ -1242,6 +1246,46 @@ export class Editor implements Component, Focusable {
}
}
private deleteWordForward(): void {
this.historyIndex = -1; // Exit history browsing mode
const currentLine = this.state.lines[this.state.cursorLine] || "";
// If at end of line, merge with next line (delete the newline)
if (this.state.cursorCol >= currentLine.length) {
if (this.state.cursorLine < this.state.lines.length - 1) {
// Treat newline as deleted text (forward deletion = append)
this.addToKillRing("\n", false);
this.lastAction = "kill";
const nextLine = this.state.lines[this.state.cursorLine + 1] || "";
this.state.lines[this.state.cursorLine] = currentLine + nextLine;
this.state.lines.splice(this.state.cursorLine + 1, 1);
}
} else {
// Save lastAction before cursor movement (moveWordForwards resets it)
const wasKill = this.lastAction === "kill";
const oldCursorCol = this.state.cursorCol;
this.moveWordForwards();
const deleteTo = this.state.cursorCol;
this.state.cursorCol = oldCursorCol;
// Restore kill state for accumulation check, then save to kill ring
this.lastAction = wasKill ? "kill" : null;
const deletedText = currentLine.slice(this.state.cursorCol, deleteTo);
this.addToKillRing(deletedText, false);
this.lastAction = "kill";
this.state.lines[this.state.cursorLine] =
currentLine.slice(0, this.state.cursorCol) + currentLine.slice(deleteTo);
}
if (this.onChange) {
this.onChange(this.getText());
}
}
private handleForwardDelete(): void {
this.historyIndex = -1; // Exit history browsing mode
this.lastAction = null;