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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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* |
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* @date 2017-01-03 |
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* |
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* @license LGPLv3 |
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* |
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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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namespace Smalot\PdfParser; |
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use Smalot\PdfParser\Element\ElementArray; |
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use Smalot\PdfParser\Element\ElementBoolean; |
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use Smalot\PdfParser\Element\ElementDate; |
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use Smalot\PdfParser\Element\ElementHexa; |
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use Smalot\PdfParser\Element\ElementName; |
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use Smalot\PdfParser\Element\ElementNull; |
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use Smalot\PdfParser\Element\ElementNumeric; |
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use Smalot\PdfParser\Element\ElementString; |
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use Smalot\PdfParser\Element\ElementStruct; |
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use Smalot\PdfParser\Element\ElementXRef; |
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/** |
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* Class Element |
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*/ |
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class Element |
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{ |
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/** |
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* @var Document|null |
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*/ |
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protected $document; |
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protected $value; |
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public function __construct($value, ?Document $document = null) |
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{ |
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$this->value = $value; |
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$this->document = $document; |
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} |
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public function init() |
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{ |
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} |
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public function equals($value): bool |
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{ |
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return $value == $this->value; |
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} |
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public function contains($value): bool |
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{ |
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if (\is_array($this->value)) { |
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/** @var Element $val */ |
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foreach ($this->value as $val) { |
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if ($val->equals($value)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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return $this->equals($value); |
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} |
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public function getContent() |
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{ |
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return $this->value; |
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} |
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public function __toString(): string |
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{ |
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return (string) $this->value; |
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} |
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public static function parse(string $content, ?Document $document = null, int &$position = 0) |
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{ |
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$args = \func_get_args(); |
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$only_values = isset($args[3]) ? $args[3] : false; |
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$content = trim($content); |
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$values = []; |
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do { |
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$old_position = $position; |
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if (!$only_values) { |
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if (!preg_match('/\G\s*(?P<name>\/[A-Z#0-9\._]+)(?P<value>.*)/si', $content, $match, 0, $position)) { |
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break; |
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} else { |
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$name = preg_replace_callback( |
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'/#([0-9a-f]{2})/i', |
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function ($m) { |
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return \chr(base_convert($m[1], 16, 10)); |
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}, |
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ltrim($match['name'], '/') |
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); |
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$value = $match['value']; |
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$position = strpos($content, $value, $position + \strlen($match['name'])); |
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} |
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} else { |
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$name = \count($values); |
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$value = substr($content, $position); |
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} |
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if ($element = ElementName::parse($value, $document, $position)) { |
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$values[$name] = $element; |
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} elseif ($element = ElementXRef::parse($value, $document, $position)) { |
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$values[$name] = $element; |
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} elseif ($element = ElementNumeric::parse($value, $document, $position)) { |
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$values[$name] = $element; |
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} elseif ($element = ElementStruct::parse($value, $document, $position)) { |
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$values[$name] = $element; |
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} elseif ($element = ElementBoolean::parse($value, $document, $position)) { |
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$values[$name] = $element; |
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} elseif ($element = ElementNull::parse($value, $document, $position)) { |
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$values[$name] = $element; |
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} elseif ($element = ElementDate::parse($value, $document, $position)) { |
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$values[$name] = $element; |
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} elseif ($element = ElementString::parse($value, $document, $position)) { |
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$values[$name] = $element; |
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} elseif ($element = ElementHexa::parse($value, $document, $position)) { |
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$values[$name] = $element; |
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} elseif ($element = ElementArray::parse($value, $document, $position)) { |
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$values[$name] = $element; |
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} else { |
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$position = $old_position; |
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break; |
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} |
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} while ($position < \strlen($content)); |
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return $values; |
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} |
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} |
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smalot /
pdfparser
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