mxchat-basic / includes / pdf-parser / src / Smalot / PdfParser / Element / ElementDate.php

ElementDate.php in MxChat – AI Chatbot & Content Generation for WordPress 3.2.5, at includes/pdf-parser/src/Smalot/PdfParser/Element/ElementDate.php

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1	<?php
2
3	/**
4	* @file
5	* This file is part of the PdfParser library.
6	*
7	* @author Sébastien MALOT <sebastien@malot.fr>
8	*
9	* @date 2017-01-03
10	*
11	* @license LGPLv3
12	*
13	* @url <https://github.com/smalot/pdfparser>
14	*
15	* PdfParser is a pdf library written in PHPi, extraction oriented.
16	* Copyright (C) 2017 - Sébastien MALOT <sebastien@malot.fr>
17	*
18	* This program is free software: you can redistribute it and/or modify
19	* it under the terms of the GNU Lesser General Public License as published by
20	* the Free Software Foundation, either version 3 of the License, or
21	* (at your option) any later version.
22	*
23	* This program is distributed in the hope that it will be useful,
24	* but WITHOUT ANY WARRANTY; without even the implied warranty of
25	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26	* GNU Lesser General Public License for more details.
27	*
28	* You should have received a copy of the GNU Lesser General Public License
29	* along with this program.
30	* If not, see <http://www.pdfparser.org/sites/default/LICENSE.txt>.
31	*/
32
33	namespace Smalot\PdfParser\Element;
34
35	use Smalot\PdfParser\Document;
36
37	/**
38	* Class ElementDate
39	*/
40	class ElementDate extends ElementString
41	{
42	/**
43	* @var array<int,string>
44	*/
45	protected static $formats = [
46	4 => 'Y',
47	6 => 'Ym',
48	8 => 'Ymd',
49	10 => 'YmdH',
50	12 => 'YmdHi',
51	14 => 'YmdHis',
52	15 => 'YmdHise',
53	17 => 'YmdHisO',
54	18 => 'YmdHisO',
55	19 => 'YmdHisO',
56	];
57
58	/**
59	* @var string
60	*/
61	protected $format = 'c';
62
63	/**
64	* @var \DateTime
65	*/
66	protected $value;
67
68	public function __construct($value)
69	{
70	if (!($value instanceof \DateTime)) {
71	throw new \Exception('DateTime required.'); // FIXME: Sometimes strings are passed to this function
72	}
73
74	parent::__construct($value);
75	}
76
77	public function setFormat(string $format)
78	{
79	$this->format = $format;
80	}
81
82	public function equals($value): bool
83	{
84	if ($value instanceof \DateTime) {
85	$timestamp = $value->getTimeStamp();
86	} else {
87	$timestamp = strtotime($value);
88	}
89
90	return $timestamp == $this->value->getTimeStamp();
91	}
92
93	public function __toString(): string
94	{
95	return (string) $this->value->format($this->format);
96	}
97
98	/**
99	* @return bool\|ElementDate
100	*/
101	public static function parse(string $content, ?Document $document = null, int &$offset = 0)
102	{
103	if (preg_match('/^\s$D\:(?P<name>.?)$/s', $content, $match)) {
104	$name = $match['name'];
105	$name = str_replace("'", '', $name);
106	$date = false;
107
108	// Smallest format : Y
109	// Full format : YmdHisP
110	if (preg_match('/^\d{4}(\d{2}(\d{2}(\d{2}(\d{2}(\d{2}(Z(\d{2,4})?\|[\+-]?\d{2}(\d{2})?)?)?)?)?)?)?$/', $name)) {
111	if ($pos = strpos($name, 'Z')) {
112	$name = substr($name, 0, $pos + 1);
113	} elseif (18 == \strlen($name) && preg_match('/[^\+-]0000$/', $name)) {
114	$name = substr($name, 0, -4).'+0000';
115	}
116
117	$format = self::$formats[\strlen($name)];
118	$date = \DateTime::createFromFormat($format, $name, new \DateTimeZone('UTC'));
119	} else {
120	// special cases
121	if (preg_match('/^\d{1,2}-\d{1,2}-\d{4},?\s+\d{2}:\d{2}:\d{2}[\+-]\d{4}$/', $name)) {
122	$name = str_replace(',', '', $name);
123	$format = 'n-j-Y H:i:sO';
124	$date = \DateTime::createFromFormat($format, $name, new \DateTimeZone('UTC'));
125	}
126	}
127
128	if (!$date) {
129	return false;
130	}
131
132	$offset += strpos($content, '(D:') + \strlen($match['name']) + 4; // 1 for '(D:' and ')'
133
134	return new self($date);
135	}
136
137	return false;
138	}
139	}
140