DocCommentParser.php

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<?php
namespace TYPO3\CMS\Extbase\Reflection;

/*
 * 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!
 */

class DocCommentParser
{
    protected $description = '';

    protected $tags = [];

    public function parseDocComment($docComment)
    {
        $this->description = '';
        $this->tags = [];
        $lines = explode(LF, $docComment);
        foreach ($lines as $line) {
            if ($line !== '' && strpos($line, '@') !== false) {
                $this->parseTag(substr($line, strpos($line, '@')));
            } elseif (empty($this->tags)) {
                $this->description .= preg_replace('#\\s*/?[*/]*(.*)$#', '$1', $line) . LF;
            }
        }
        $this->description = trim($this->description);
    }

    public function getTagsValues()
    {
        return $this->tags;
    }

    public function getTagValues($tagName)
    {
        if (!$this->isTaggedWith($tagName)) {
            throw new \RuntimeException('Tag "' . $tagName . '" does not exist.', 1169128255);
        }
        return $this->tags[$tagName];
    }

    public function isTaggedWith($tagName)
    {
        return isset($this->tags[$tagName]);
    }

    public function getDescription()
    {
        return $this->description;
    }

    protected function parseTag($line)
    {
        $tagAndValue = preg_split('/\\s/', $line, 2);
        $tag = substr($tagAndValue[0], 1);
        if (count($tagAndValue) > 1) {
            $this->tags[$tag][] = trim($tagAndValue[1]);
        } else {
            $this->tags[$tag] = [];
        }
    }
}