list.js
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	'use strict';

	const StringPrompt = require('../types/string');

	class ListPrompt extends StringPrompt {
	constructor(options = {}) {
	super(options);
	this.sep = this.options.separator \|\| /, */;
	this.initial = options.initial \|\| '';
	}

	split(input = this.value) {
	return input ? String(input).split(this.sep) : [];
	}

	format() {
	let style = this.state.submitted ? this.styles.primary : val => val;
	return this.list.map(style).join(', ');
	}

	async submit(value) {
	let result = this.state.error \|\| await this.validate(this.list, this.state);
	if (result !== true) {
	this.state.error = result;
	return super.submit();
	}
	this.value = this.list;
	return super.submit();
	}

	get list() {
	return this.split();
	}
	}

	module.exports = ListPrompt;