* @date 2017-01-03 * @license LGPLv3 * @url * * PdfParser is a pdf library written in PHP, extraction oriented. * Copyright (C) 2017 - Sébastien MALOT * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. * If not, see . * */ namespace Smalot\PdfParser\Element; use Smalot\PdfParser\Document; /** * Class ElementHexa * * @package Smalot\PdfParser\Element */ class ElementHexa extends ElementString { /** * @param string $content * @param Document $document * @param int $offset * * @return bool|ElementHexa */ public static function parse($content, Document $document = null, &$offset = 0) { if (preg_match('/^\s*\<(?P[A-F0-9]+)\>/is', $content, $match)) { $name = $match['name']; $offset += strpos($content, '<' . $name) + strlen($name) + 2; // 1 for '>' // repackage string as standard $name = '(' . self::decode($name, $document) . ')'; $element = false; if (!($element = ElementDate::parse($name, $document))) { $element = ElementString::parse($name, $document); } return $element; } return false; } /** * @param string $value * @param Document $document */ public static function decode($value, Document $document = null) { $text = ''; $length = strlen($value); if (substr($value, 0, 2) == '00') { for ($i = 0; $i < $length; $i += 4) { $hex = substr($value, $i, 4); $text .= '&#' . str_pad(hexdec($hex), 4, '0', STR_PAD_LEFT) . ';'; } } else { for ($i = 0; $i < $length; $i += 2) { $hex = substr($value, $i, 2); $text .= chr(hexdec($hex)); } } $text = html_entity_decode($text, ENT_NOQUOTES, 'UTF-8'); return $text; } }