SimpleNode.php

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<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Core\Html;
 
class ‪SimpleNode
{
    // similar to https://developer.mozilla.org/en-US/docs/Web/API/Node/nodeType
    public const ‪TYPE_ELEMENT = 1;
    public const ‪TYPE_TEXT = 3;
    public const ‪TYPE_CDATA = 4;
    public const ‪TYPE_COMMENT = 8;
 
    protected ‪$type;
 
    protected ‪$index;
 
    protected ‪$string;
 
    public static function ‪fromString(int ‪$type, int ‪$index, string ‪$string): self
    {
        return new self(‪$type, ‪$index, ‪$string);
    }
 
    public function ‪__construct(int ‪$type, int ‪$index, string ‪$string)
    {
        $this->type = ‪$type;
        $this->index = ‪$index;
        $this->string = ‪$string;
    }
 
    public function ‪__toString(): string
    {
        return ‪$this->string;
    }
 
    public function ‪getType(): int
    {
        return ‪$this->type;
    }
 
    public function ‪getIndex(): int
    {
        return ‪$this->index;
    }
 
    public function ‪getElementName(): ?string
    {
        if ($this->‪getType() !== self::TYPE_ELEMENT) {
            return null;
        }
        if (!preg_match('#^<(?P<name>[a-z][a-z0-9-]*)\b#i', $this->string, $matches)) {
            return null;
        }
        return $matches['name'];
    }
}