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authorThomas Citharel <tcit@tcit.fr>2014-12-19 21:08:44 +0100
committerThomas Citharel <tcit@tcit.fr>2014-12-19 21:08:44 +0100
commit3dcd85c075998ecdf2d54c5661c42e24080067d5 (patch)
treeb939cdbf86c1be64ef64d8afb3efd0d55e8a945e /inc/3rdparty/libraries/MOBIClass/FileObject.php
parent44b95cb81deae35f58e0058910afde2f2ffb9a60 (diff)
parente9a64ef8a9776becbe4c621ee4bd762f24b1bc3e (diff)
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Diffstat (limited to 'inc/3rdparty/libraries/MOBIClass/FileObject.php')
-rw-r--r--inc/3rdparty/libraries/MOBIClass/FileObject.php168
1 files changed, 168 insertions, 0 deletions
diff --git a/inc/3rdparty/libraries/MOBIClass/FileObject.php b/inc/3rdparty/libraries/MOBIClass/FileObject.php
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1<?php
2
3/**
4 * Description of FileObject
5 *
6 * @author Sander
7 */
8abstract class FileObject {
9 private $byteLength = -1;
10
11 public function __construct($byteLength = -1){
12 $this->byteLength = $byteLength;
13 }
14
15 public function getByteLength(){
16 if($this->byteLength >= 0){
17 return $this->byteLength;
18 }
19 return $this->getLength();
20 }
21
22 public function getLength(){
23 throw new Exception("Sub-class needs to implement this if it doesn't have a fixed length");
24 }
25
26 /**
27 * Convert a string to byte format (maximum 4 bytes)
28 * @param string $string Input string
29 * @return int Output integer
30 */
31 public function toInt($string){
32 $out = 0;
33 for($i = 0, $len = min(4, strlen($string)); $i < $len; $i++){
34 $out = $out | (ord($string[$i]) << (($len-$i-1)*8));
35 }
36 return $out;
37 }
38
39 /**
40 * Convert a byte (stored in an integer) to a string
41 * @param byte $int
42 * @return string
43 */
44 public function byteToString($int){
45 return $this->toString($int, 1);
46 }
47
48 /**
49 * Convert a byte (stored in an integer) to a string
50 * @param byte $int
51 * @return string
52 */
53 public function byteAsString($int){
54 return $this->asString($int, 1);
55 }
56
57 /**
58 * Convert a short (stored in an integer) to a string
59 * @param short $int
60 * @return string
61 */
62 public function shortToString($int){
63 return $this->toString($int, 2);
64 }
65
66 /**
67 * Convert a short (stored in an integer) to a string
68 * @param short $int
69 * @return string
70 */
71 public function shortAsString($int){
72 return $this->asString($int, 2);
73 }
74
75 /**
76 * Convert a tri-byte (stored in an integer) to a string
77 * @param tri-byte $int
78 * @return string
79 */
80 public function triToString($int){
81 return $this->toString($int, 3);
82 }
83
84 /**
85 * Convert a tri-byte (stored in an integer) to a string
86 * @param tri-byte $int
87 * @return string
88 */
89 public function triAsString($int){
90 return $this->asString($int, 3);
91 }
92
93 /**
94 * Convert an integer to a string
95 * @param int $int
96 * @return string
97 */
98 public function intToString($int){
99 return $this->toString($int, 4);
100 }
101
102 /**
103 * Convert an integer to a string
104 * @param int $int
105 * @return string
106 */
107 public function intAsString($int){
108 return $this->asString($int, 4);
109 }
110
111 /**
112 * Convert a number of n bytes to a string
113 * @param int $int Number that should be converted
114 * @param int $size Number of bytes to convert
115 * @return string Output string
116 */
117 private function toString($int, $size){
118 $out = "";
119 for($i = 0; $i < $size; $i++){
120 $out = chr($int & 0xFF).$out;
121 $int = $int >> 8;
122 }
123 return $out;
124 }
125
126 /**
127 * Convert a number of n bytes to a string
128 * @param int $int Number that should be converted
129 * @param int $size Number of bytes to convert
130 * @return string Output string
131 */
132 private function asString($int, $size){
133 $out = "";
134 for($i = 0; $i < $size; $i++){
135 if($i > 0) $out = " ".$out;
136 $byte = dechex($int & 0xFF);
137 if(strlen($byte) == 1) $byte = "0".$byte;
138 $out = $byte.$out;
139 $int = $int >> 8;
140 }
141 return $out;
142 }
143
144 /**
145 * Get the value
146 * @return mixed Value to get
147 */
148 abstract public function get();
149
150 /**
151 * Set the value
152 * @return mixed Value to set
153 */
154 abstract public function set($value);
155
156 /**
157 * Serialize the object
158 * @return string String representation
159 */
160 abstract public function serialize();
161
162 /**
163 * Unserialize the object
164 * @param string $data String representation
165 */
166 abstract public function unserialize($data);
167}
168?>