Method handleBackspace

packages/pi-tui/src/components/input.ts:224–235

()

	}

	private handleBackspace(): void {
		this.lastAction = null;
		if (this.cursor > 0) {
			this.pushUndo();
			const beforeCursor = this.value.slice(0, this.cursor);
			const graphemes = [...segmenter.segment(beforeCursor)];
			const lastGrapheme = graphemes[graphemes.length - 1];
			const graphemeLength = lastGrapheme ? lastGrapheme.segment.length : 1;
			this.value = this.value.slice(0, this.cursor - graphemeLength) + this.value.slice(this.cursor);
			this.cursor -= graphemeLength;
		}
	}

	private handleForwardDelete(): void {
		this.lastAction = null;