Method deleteToStartOfLine

packages/pi-tui/src/components/editor.ts:1587–1620

()

	}

	private deleteToStartOfLine(): void {
		this.exitHistoryBrowsing();

		const currentLine = this.state.lines[this.state.cursorLine] || "";

		if (this.state.cursorCol > 0) {
			this.pushUndoSnapshot();

			// Calculate text to be deleted and save to kill ring (backward deletion = prepend)
			const deletedText = currentLine.slice(0, this.state.cursorCol);
			this.killRing.push(deletedText, { prepend: true, accumulate: this.lastAction === "kill" });
			this.lastAction = "kill";

			// Delete from start of line up to cursor
			this.state.lines[this.state.cursorLine] = currentLine.slice(this.state.cursorCol);
			this.setCursorCol(0);
		} else if (this.state.cursorLine > 0) {
			this.pushUndoSnapshot();

			// At start of line - merge with previous line, treating newline as deleted text
			this.killRing.push("\n", { prepend: true, accumulate: this.lastAction === "kill" });
			this.lastAction = "kill";

			const previousLine = this.state.lines[this.state.cursorLine - 1] || "";
			this.state.lines[this.state.cursorLine - 1] = previousLine + currentLine;
			this.state.lines.splice(this.state.cursorLine, 1);
			this.state.cursorLine--;
			this.setCursorCol(previousLine.length);
		}

		if (this.onChange) {
			this.onChange(this.getText());
		}
	}

	private deleteToEndOfLine(): void {
		this.exitHistoryBrowsing();