1<?php
2
3/**
4 * iso-8859-2 encoding functions
5 *
6 * takes a string of unicode entities and converts it to a iso-8859-2 encoded string
7 * Unsupported characters are replaced with ?.
8 *
9 * @copyright 2004-2021 The SquirrelMail Project Team
10 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
11 * @version $Id: iso_8859_2.php 14885 2021-02-05 19:19:32Z pdontthink $
12 * @package squirrelmail
13 * @subpackage encode
14 */
15
16/**
17 * Converts string to iso-8859-2
18 * @param string $string text with numeric unicode entities
19 * @return string iso-8859-2 encoded text
20 */
21function charset_encode_iso_8859_2 ($string) {
22   // don't run encoding function, if there is no encoded characters
23   if (! preg_match("'&#[0-9]+;'",$string) ) return $string;
24
25    $string=preg_replace_callback("/&#([0-9]+);/",'unicodetoiso88592',$string);
26
27    return $string;
28}
29
30/**
31 * Return iso-8859-2 symbol when unicode character number is provided
32 *
33 * This function is used internally by charset_encode_iso_8859_2
34 * function. It might be unavailable to other SquirrelMail functions.
35 * Don't use it or make sure, that functions/encode/iso_8859_2.php is
36 * included.
37 *
38 * @param array $matches array with first element a decimal unicode value
39 * @return string iso-8859-2 character
40 */
41function unicodetoiso88592($matches) {
42    $var = $matches[1];
43
44    $iso88592chars=array('160' => "\xA0",
45                        '164' => "\xA4",
46                        '167' => "\xA7",
47                        '168' => "\xA8",
48                        '173' => "\xAD",
49                        '176' => "\xB0",
50                        '180' => "\xB4",
51                        '184' => "\xB8",
52                        '193' => "\xC1",
53                        '194' => "\xC2",
54                        '196' => "\xC4",
55                        '199' => "\xC7",
56                        '201' => "\xC9",
57                        '203' => "\xCB",
58                        '205' => "\xCD",
59                        '206' => "\xCE",
60                        '211' => "\xD3",
61                        '212' => "\xD4",
62                        '214' => "\xD6",
63                        '215' => "\xD7",
64                        '218' => "\xDA",
65                        '220' => "\xDC",
66                        '221' => "\xDD",
67                        '223' => "\xDF",
68                        '225' => "\xE1",
69                        '226' => "\xE2",
70                        '228' => "\xE4",
71                        '231' => "\xE7",
72                        '233' => "\xE9",
73                        '235' => "\xEB",
74                        '237' => "\xED",
75                        '238' => "\xEE",
76                        '243' => "\xF3",
77                        '244' => "\xF4",
78                        '246' => "\xF6",
79                        '247' => "\xF7",
80                        '250' => "\xFA",
81                        '252' => "\xFC",
82                        '253' => "\xFD",
83                        '258' => "\xC3",
84                        '259' => "\xE3",
85                        '260' => "\xA1",
86                        '261' => "\xB1",
87                        '262' => "\xC6",
88                        '263' => "\xE6",
89                        '268' => "\xC8",
90                        '269' => "\xE8",
91                        '270' => "\xCF",
92                        '271' => "\xEF",
93                        '272' => "\xD0",
94                        '273' => "\xF0",
95                        '280' => "\xCA",
96                        '281' => "\xEA",
97                        '282' => "\xCC",
98                        '283' => "\xEC",
99                        '313' => "\xC5",
100                        '314' => "\xE5",
101                        '317' => "\xA5",
102                        '318' => "\xB5",
103                        '321' => "\xA3",
104                        '322' => "\xB3",
105                        '323' => "\xD1",
106                        '324' => "\xF1",
107                        '327' => "\xD2",
108                        '328' => "\xF2",
109                        '336' => "\xD5",
110                        '337' => "\xF5",
111                        '340' => "\xC0",
112                        '341' => "\xE0",
113                        '344' => "\xD8",
114                        '345' => "\xF8",
115                        '346' => "\xA6",
116                        '347' => "\xB6",
117                        '350' => "\xAA",
118                        '351' => "\xBA",
119                        '352' => "\xA9",
120                        '353' => "\xB9",
121                        '354' => "\xDE",
122                        '355' => "\xFE",
123                        '356' => "\xAB",
124                        '357' => "\xBB",
125                        '366' => "\xD9",
126                        '367' => "\xF9",
127                        '368' => "\xDB",
128                        '369' => "\xFB",
129                        '377' => "\xAC",
130                        '378' => "\xBC",
131                        '379' => "\xAF",
132                        '380' => "\xBF",
133                        '381' => "\xAE",
134                        '382' => "\xBE",
135                        '711' => "\xB7",
136                        '728' => "\xA2",
137                        '729' => "\xFF",
138                        '731' => "\xB2",
139                        '733' => "\xBD");
140
141
142    if (array_key_exists($var,$iso88592chars)) {
143        $ret=$iso88592chars[$var];
144    } else {
145        $ret='?';
146    }
147    return $ret;
148}
149