Method handleForwardDelete

packages/pi-tui/src/components/editor.ts:1741–1789

()

	}

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

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

		if (this.state.cursorCol < currentLine.length) {
			this.pushUndoSnapshot();

			// Delete grapheme at cursor position (handles emojis, combining characters, etc.)
			const afterCursor = currentLine.slice(this.state.cursorCol);

			// Find the first grapheme at cursor
			const graphemes = [...this.segment(afterCursor, "grapheme")];
			const firstGrapheme = graphemes[0];
			const graphemeLength = firstGrapheme ? firstGrapheme.segment.length : 1;

			const before = currentLine.slice(0, this.state.cursorCol);
			const after = currentLine.slice(this.state.cursorCol + graphemeLength);
			this.state.lines[this.state.cursorLine] = before + after;
		} else if (this.state.cursorLine < this.state.lines.length - 1) {
			this.pushUndoSnapshot();

			// At end of line - merge with next line
			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);
		}

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

		// Update or re-trigger autocomplete after forward delete
		if (this.autocompleteState) {
			this.updateAutocomplete();
		} else {
			const currentLine = this.state.lines[this.state.cursorLine] || "";
			const textBeforeCursor = currentLine.slice(0, this.state.cursorCol);
			// Slash command context
			if (this.isInSlashCommandContext(textBeforeCursor)) {
				this.tryTriggerAutocomplete();
			}
			// Symbol-based completion context like @, #, or provider triggers
			else if (this.autocompleteTriggerPattern.test(textBeforeCursor)) {
				this.tryTriggerAutocomplete();
			}
		}
	}

	/**
	 * Build a mapping from visual lines to logical positions.