Replacing tabs with spaces, trimming white space at EOL and newline at EOF
[squirrelmail.git] / functions / encode / koi8_r.php
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9911dc64 1<?php
2/**
3 * koi8-r encoding functions
4 *
5 * takes a string of unicode entities and converts it to a koi8-r encoded string
6 * Unsupported characters are replaced with ?.
7 *
8 * @version $Id$
9 * @copyright Copyright &copy; SquirrelMail Development Team, 2004
10 * @package squirrelmail
11 * @subpackage encode
12 */
13
14/**
15 * Converts string to koi8-r
16 * @param string $string text with numeric unicode entities
17 * @return string koi8-r encoded text
18 */
19function charset_encode_koi8_r ($string) {
20 // don't run encoding function, if there is no encoded characters
21 if (! preg_match("'&#[0-9]+;'",$string) ) return $string;
22
23 $string=preg_replace("/&#([0-9]+);/e","unicodetokoi8r('\\1')",$string);
24 // $string=preg_replace("/&#[xX]([0-9A-F]+);/e","unicodetokoi8r(hexdec('\\1'))",$string);
91e0dccc 25
9911dc64 26 return $string;
27}
28
29/**
30 * Return koi8-r symbol when unicode character number is provided
91e0dccc 31 *
32 * This function is used internally by charset_encode_koi8_r
9911dc64 33 * function. It might be unavailable to other squirrelmail functions.
91e0dccc 34 * Don't use it or make sure, that functions/encode/koi8_r.php is
35 * included.
9911dc64 36 *
37 * @param int $var decimal unicode value
38 * @return string koi8-r character
39 */
40function unicodetokoi8r($var) {
41
42 $koi8rchars=array('160' => "\x9A",
43 '169' => "\xBF",
44 '176' => "\x9C",
45 '178' => "\x9D",
46 '183' => "\x9E",
47 '247' => "\x9F",
48 '1025' => "\xB3",
49 '1040' => "\xE1",
50 '1041' => "\xE2",
51 '1042' => "\xF7",
52 '1043' => "\xE7",
53 '1044' => "\xE4",
54 '1045' => "\xE5",
55 '1046' => "\xF6",
56 '1047' => "\xFA",
57 '1048' => "\xE9",
58 '1049' => "\xEA",
59 '1050' => "\xEB",
60 '1051' => "\xEC",
61 '1052' => "\xED",
62 '1053' => "\xEE",
63 '1054' => "\xEF",
64 '1055' => "\xF0",
65 '1056' => "\xF2",
66 '1057' => "\xF3",
67 '1058' => "\xF4",
68 '1059' => "\xF5",
69 '1060' => "\xE6",
70 '1061' => "\xE8",
71 '1062' => "\xE3",
72 '1063' => "\xFE",
73 '1064' => "\xFB",
74 '1065' => "\xFD",
75 '1066' => "\xFF",
76 '1067' => "\xF9",
77 '1068' => "\xF8",
78 '1069' => "\xFC",
79 '1070' => "\xE0",
80 '1071' => "\xF1",
81 '1072' => "\xC1",
82 '1073' => "\xC2",
83 '1074' => "\xD7",
84 '1075' => "\xC7",
85 '1076' => "\xC4",
86 '1077' => "\xC5",
87 '1078' => "\xD6",
88 '1079' => "\xDA",
89 '1080' => "\xC9",
90 '1081' => "\xCA",
91 '1082' => "\xCB",
92 '1083' => "\xCC",
93 '1084' => "\xCD",
94 '1085' => "\xCE",
95 '1086' => "\xCF",
96 '1087' => "\xD0",
97 '1088' => "\xD2",
98 '1089' => "\xD3",
99 '1090' => "\xD4",
100 '1091' => "\xD5",
101 '1092' => "\xC6",
102 '1093' => "\xC8",
103 '1094' => "\xC3",
104 '1095' => "\xDE",
105 '1096' => "\xDB",
106 '1097' => "\xDD",
107 '1098' => "\xDF",
108 '1099' => "\xD9",
109 '1100' => "\xD8",
110 '1101' => "\xDC",
111 '1102' => "\xC0",
112 '1103' => "\xD1",
113 '1105' => "\xA3",
114 '8729' => "\x95",
115 '8730' => "\x96",
116 '8776' => "\x97",
117 '8804' => "\x98",
118 '8805' => "\x99",
119 '8992' => "\x93",
120 '8993' => "\x9B",
121 '9472' => "\x80",
122 '9474' => "\x81",
123 '9484' => "\x82",
124 '9488' => "\x83",
125 '9492' => "\x84",
126 '9496' => "\x85",
127 '9500' => "\x86",
128 '9508' => "\x87",
129 '9516' => "\x88",
130 '9524' => "\x89",
131 '9532' => "\x8A",
132 '9552' => "\xA0",
133 '9553' => "\xA1",
134 '9554' => "\xA2",
135 '9555' => "\xA4",
136 '9556' => "\xA5",
137 '9557' => "\xA6",
138 '9558' => "\xA7",
139 '9559' => "\xA8",
140 '9560' => "\xA9",
141 '9561' => "\xAA",
142 '9562' => "\xAB",
143 '9563' => "\xAC",
144 '9564' => "\xAD",
145 '9565' => "\xAE",
146 '9566' => "\xAF",
147 '9567' => "\xB0",
148 '9568' => "\xB1",
149 '9569' => "\xB2",
150 '9570' => "\xB4",
151 '9571' => "\xB5",
152 '9572' => "\xB6",
153 '9573' => "\xB7",
154 '9574' => "\xB8",
155 '9575' => "\xB9",
156 '9576' => "\xBA",
157 '9577' => "\xBB",
158 '9578' => "\xBC",
159 '9579' => "\xBD",
160 '9580' => "\xBE",
161 '9600' => "\x8B",
162 '9604' => "\x8C",
163 '9608' => "\x8D",
164 '9612' => "\x8E",
165 '9616' => "\x8F",
166 '9617' => "\x90",
167 '9618' => "\x91",
168 '9619' => "\x92",
169 '9632' => "\x94");
170
171 if (array_key_exists($var,$koi8rchars)) {
172 $ret=$koi8rchars[$var];
173 } else {
174 $ret='?';
175 }
176 return $ret;
177}
178?>