155 lines
4.2 KiB
PHP
155 lines
4.2 KiB
PHP
<?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 <sebastien@malot.fr>
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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 PHPi, extraction oriented.
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* Copyright (C) 2017 - Sébastien MALOT <sebastien@malot.fr>
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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 ElementDate
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*
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* @package Smalot\PdfParser\Element
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*/
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class ElementDate extends ElementString
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{
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/**
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* @var array
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*/
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protected static $formats = array(
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4 => 'Y',
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6 => 'Ym',
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8 => 'Ymd',
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10 => 'YmdH',
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12 => 'YmdHi',
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14 => 'YmdHis',
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15 => 'YmdHise',
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17 => 'YmdHisO',
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18 => 'YmdHisO',
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19 => 'YmdHisO',
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);
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/**
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* @var string
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*/
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protected $format = 'c';
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/**
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* @param \DateTime $value
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* @param Document $document
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*/
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public function __construct($value, Document $document = null)
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{
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if (!($value instanceof \DateTime)) {
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throw new \Exception('DateTime required.');
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}
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parent::__construct($value, null);
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}
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/**
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* @param string $format
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*/
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public function setFormat($format)
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{
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$this->format = $format;
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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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if ($value instanceof \DateTime) {
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$timestamp = $value->getTimeStamp();
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} else {
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$timestamp = strtotime($value);
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}
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return ($timestamp == $this->value->getTimeStamp());
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}
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/**
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* @return string
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*/
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public function __toString()
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{
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return (string)($this->value->format($this->format));
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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 $offset
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*
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* @return bool|ElementDate
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*/
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public static function parse($content, Document $document = null, &$offset = 0)
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{
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if (preg_match('/^\s*\(D\:(?P<name>.*?)\)/s', $content, $match)) {
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$name = $match['name'];
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$name = str_replace("'", '', $name);
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$date = false;
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// Smallest format : Y
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// Full format : YmdHisP
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if (preg_match('/^\d{4}(\d{2}(\d{2}(\d{2}(\d{2}(\d{2}(Z(\d{2,4})?|[\+-]?\d{2}(\d{2})?)?)?)?)?)?)?$/', $name)) {
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if ($pos = strpos($name, 'Z')) {
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$name = substr($name, 0, $pos + 1);
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} elseif (strlen($name) == 18 && preg_match('/[^\+-]0000$/', $name)) {
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$name = substr($name, 0, -4) . '+0000';
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}
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$format = self::$formats[strlen($name)];
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$date = \DateTime::createFromFormat($format, $name);
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} else {
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// special cases
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if (preg_match('/^\d{1,2}-\d{1,2}-\d{4},?\s+\d{2}:\d{2}:\d{2}[\+-]\d{4}$/', $name)) {
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$name = str_replace(',', '', $name);
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$format = 'n-j-Y H:i:sO';
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$date = \DateTime::createFromFormat($format, $name);
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}
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}
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if (!$date) {
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return false;
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}
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$offset += strpos($content, '(D:') + strlen($match['name']) + 4; // 1 for '(D:' and ')'
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$element = new self($date, $document);
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return $element;
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}
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return false;
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}
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}
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