StringNode.php

<?php

/**
 * This file is part of the Nette Framework (https://nette.org)
 * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
 */

declare(strict_types=1);

namespace Nette\Neon\Node;

use Nette;
use Nette\Neon\Node;


/** @internal */
final class StringNode extends Node
{
	/** @var string */
	public $value;


	public function __construct(string $value, int $pos = null)
	{
		$this->value = $value;
		$this->startPos = $this->endPos = $pos;
	}


	public function toValue(): string
	{
		return $this->value;
	}


	public function toString(): string
	{
		$res = json_encode($this->value, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
		if ($res === false) {
			throw new Nette\Neon\Exception('Invalid UTF-8 sequence: ' . $this->value);
		}
		if (strpos($this->value, "\n") !== false) {
			$res = preg_replace_callback('#[^\\\\]|\\\\(.)#s', function ($m) {
				return ['n' => "\n\t", 't' => "\t", '"' => '"'][$m[1] ?? ''] ?? $m[0];
			}, $res);
			$res = '"""' . "\n\t" . substr($res, 1, -1) . "\n" . '"""';
		}
		return $res;
	}
}