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[squirrelmail.git] / functions / encode / iso_8859_15.php
1 <?php
2
3 /**
4 * iso-8859-15 encoding functions
5 *
6 * takes a string of unicode entities and converts it to a iso-8859-15 encoded string
7 * Unsupported characters are replaced with ?.
8 *
9 * @copyright 2004-2020 The SquirrelMail Project Team
10 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
11 * @version $Id$
12 * @package squirrelmail
13 * @subpackage encode
14 */
15
16 /**
17 * Converts string to iso-8859-15
18 * @param string $string text with numeric unicode entities
19 * @return string iso-8859-15 encoded text
20 */
21 function charset_encode_iso_8859_15 ($string) {
22 // don't run encoding function, if there is no encoded characters
23 if (! preg_match("'&#[0-9]+;'",$string) ) return $string;
24
25 $string=preg_replace_callback("/&#([0-9]+);/",'unicodetoiso885915',$string);
26
27 return $string;
28 }
29
30 /**
31 * Return iso-8859-15 symbol when unicode character number is provided
32 *
33 * This function is used internally by charset_encode_iso_8859_15
34 * function. It might be unavailable to other SquirrelMail functions.
35 * Don't use it or make sure, that functions/encode/iso_8859_15.php is
36 * included.
37 *
38 * @param array $matches array with first element a decimal unicode value
39 * @return string iso-8859-15 character
40 */
41 function unicodetoiso885915($matches) {
42 $var = $matches[1];
43
44 $iso885915chars=array('160' => "\xA0",
45 '161' => "\xA1",
46 '162' => "\xA2",
47 '163' => "\xA3",
48 '165' => "\xA5",
49 '167' => "\xA7",
50 '169' => "\xA9",
51 '170' => "\xAA",
52 '171' => "\xAB",
53 '172' => "\xAC",
54 '173' => "\xAD",
55 '174' => "\xAE",
56 '175' => "\xAF",
57 '176' => "\xB0",
58 '177' => "\xB1",
59 '178' => "\xB2",
60 '179' => "\xB3",
61 '181' => "\xB5",
62 '182' => "\xB6",
63 '183' => "\xB7",
64 '185' => "\xB9",
65 '186' => "\xBA",
66 '187' => "\xBB",
67 '191' => "\xBF",
68 '192' => "\xC0",
69 '193' => "\xC1",
70 '194' => "\xC2",
71 '195' => "\xC3",
72 '196' => "\xC4",
73 '197' => "\xC5",
74 '198' => "\xC6",
75 '199' => "\xC7",
76 '200' => "\xC8",
77 '201' => "\xC9",
78 '202' => "\xCA",
79 '203' => "\xCB",
80 '204' => "\xCC",
81 '205' => "\xCD",
82 '206' => "\xCE",
83 '207' => "\xCF",
84 '208' => "\xD0",
85 '209' => "\xD1",
86 '210' => "\xD2",
87 '211' => "\xD3",
88 '212' => "\xD4",
89 '213' => "\xD5",
90 '214' => "\xD6",
91 '215' => "\xD7",
92 '216' => "\xD8",
93 '217' => "\xD9",
94 '218' => "\xDA",
95 '219' => "\xDB",
96 '220' => "\xDC",
97 '221' => "\xDD",
98 '222' => "\xDE",
99 '223' => "\xDF",
100 '224' => "\xE0",
101 '225' => "\xE1",
102 '226' => "\xE2",
103 '227' => "\xE3",
104 '228' => "\xE4",
105 '229' => "\xE5",
106 '230' => "\xE6",
107 '231' => "\xE7",
108 '232' => "\xE8",
109 '233' => "\xE9",
110 '234' => "\xEA",
111 '235' => "\xEB",
112 '236' => "\xEC",
113 '237' => "\xED",
114 '238' => "\xEE",
115 '239' => "\xEF",
116 '240' => "\xF0",
117 '241' => "\xF1",
118 '242' => "\xF2",
119 '243' => "\xF3",
120 '244' => "\xF4",
121 '245' => "\xF5",
122 '246' => "\xF6",
123 '247' => "\xF7",
124 '248' => "\xF8",
125 '249' => "\xF9",
126 '250' => "\xFA",
127 '251' => "\xFB",
128 '252' => "\xFC",
129 '253' => "\xFD",
130 '254' => "\xFE",
131 '255' => "\xFF",
132 '338' => "\xBC",
133 '339' => "\xBD",
134 '352' => "\xA6",
135 '353' => "\xA8",
136 '376' => "\xBE",
137 '381' => "\xB4",
138 '382' => "\xB8",
139 '8364' => "\xA4");
140
141 if (array_key_exists($var,$iso885915chars)) {
142 $ret=$iso885915chars[$var];
143 } else {
144 $ret='?';
145 }
146 return $ret;
147 }