Method onKeypress

packages/core/src/prompts/prompt.ts:212–264

(char: string | undefined, key: Key)

	}

	private onKeypress(char: string | undefined, key: Key) {
		if (this._track && key.name !== 'return') {
			if (key.name && this._isActionKey(char, key)) {
				this.rl?.write(null, { ctrl: true, name: 'h' });
			}
			this._cursor = this.rl?.cursor ?? 0;
			this._setUserInput(this.rl?.line);
		}

		if (this.state === 'error') {
			this.state = 'active';
		}
		if (key?.name) {
			if (!this._track && settings.aliases.has(key.name)) {
				this.emit('cursor', settings.aliases.get(key.name));
			}
			if (settings.actions.has(key.name as Action)) {
				this.emit('cursor', key.name as Action);
			}
		}
		if (char && (char.toLowerCase() === 'y' || char.toLowerCase() === 'n')) {
			this.emit('confirm', char.toLowerCase() === 'y');
		}

		// Call the key event handler and emit the key event
		this.emit('key', char, key);

		if (key?.name === 'return' && this._shouldSubmit(char, key)) {
			if (this.opts.validate) {
				const problem = runValidation(this.opts.validate, this.value);
				if (problem) {
					this.error = problem instanceof Error ? problem.message : problem;
					this.state = 'error';
					this.rl?.write(this.userInput);
				}
			}
			if (this.state !== 'error') {
				this.state = 'submit';
			}
		}

		if (isActionKey([char, key?.name, key?.sequence], 'cancel')) {
			this.state = 'cancel';
		}

		if (this.state === 'submit' || this.state === 'cancel') {
			this.emit('finalize');
		}
		this.render();
		if (this.state === 'submit' || this.state === 'cancel') {
			this.close();
		}
	}

	protected close() {
		this.input.unpipe();