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<?php |
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/** |
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* @file |
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* This file is part of the PdfParser library. |
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* |
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* @author Sébastien MALOT <[email protected]> |
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* @date 2017-01-03 |
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* @license LGPLv3 |
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* @url <https://github.com/smalot/pdfparser> |
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* |
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* PdfParser is a pdf library written in PHP, extraction oriented. |
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* Copyright (C) 2017 - Sébastien MALOT <[email protected]> |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program. |
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* If not, see <http://www.pdfparser.org/sites/default/LICENSE.txt>. |
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* |
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*/ |
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namespace Smalot\PdfParser\Element; |
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use Smalot\PdfParser\Element; |
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use Smalot\PdfParser\Document; |
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/** |
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* Class ElementNull |
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* |
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* @package Smalot\PdfParser\Element |
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*/ |
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class ElementNull extends Element |
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{ |
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/** |
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* @param string $value |
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* @param Document $document |
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*/ |
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public function __construct($value, Document $document = null) |
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{ |
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parent::__construct(null, null); |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return 'null'; |
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} |
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/** |
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* @param mixed $value |
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* |
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* @return bool |
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*/ |
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public function equals($value) |
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{ |
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return ($this->getContent() === $value); |
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} |
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/** |
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* @param string $content |
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* @param Document $document |
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* @param int $offset |
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* |
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* @return bool|ElementNull |
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*/ |
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public static function parse($content, Document $document = null, &$offset = 0) |
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{ |
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if (preg_match('/^\s*(null)/s', $content, $match)) { |
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$offset += strpos($content, 'null') + strlen('null'); |
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return new self(null, $document); |
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} |
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return false; |
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} |
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} |
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smalot /
pdfparser
