1fd97780 |
1 | <? |
2 | |
3 | /** |
4 | ** i18n.php |
5 | ** |
6 | ** This file contains variuos functions that are needed to do |
7 | ** internationalization of SquirrelMail. |
8 | ** |
9 | ** Internally iso-8859-1 is used as character set. Other characters |
10 | ** are encoded using Unicode entities according to HTML 4.0. |
11 | **/ |
12 | |
13 | $i18n_php = true; |
14 | |
15 | // Decodes a string to the internal encoding from the given charset |
16 | function charset_decode ($charset, $string) { |
17 | // All HTML special characters are 7 bit and can be replaced first |
18 | $string = htmlspecialchars ($string); |
19 | |
20 | $charset = strolower($charset); |
21 | |
22 | if (ereg("iso-8859-(.*)", $charset, $res)) { |
23 | if ($res[1] == "1") |
24 | return charset_decode_iso_8859_1 ($string); |
25 | else if ($res[1] == "15") |
26 | return charset_decode_iso_8859_15 ($string); |
27 | else |
28 | return charset_decode_iso_8859_default ($string); |
29 | } else if ($charset == "ns_4551-1") { |
30 | return charset_decode_ns_4551_1 ($string); |
31 | } else |
32 | return $string; |
33 | } |
34 | |
35 | // iso-8859-1 is the same as Latin 1 and is normally used |
36 | // in western europe. |
37 | function charset_decode_iso_8859_1 ($string) { |
38 | // This is only debug code as long as the internal |
39 | // character set is iso-8859-1 |
40 | |
41 | // Latin small letter o with stroke |
42 | while (ereg("\370", $string)) |
43 | $string = ereg_replace ("\370", "ø", $string); |
44 | |
45 | return ($string); |
46 | } |
47 | |
48 | // iso-8859-15 is Latin 15 and has very much the same use as Latin 1 |
49 | // but has the Euro symbol and some characters needed for French. |
50 | function charset_decode_iso_8859_15 ($string) { |
51 | // Euro sign |
52 | while (ereg("\244", $replace)) |
53 | $string = ereg_replace ("\244", "€", $string); |
54 | // Latin capital letter S with caron |
55 | while (ereg("\246", $string)) |
56 | $string = ereg_replace ("\244", "Š", $string); |
57 | // Latin small letter s with caron |
58 | while (ereg("\250", $string)) |
59 | $string = ereg_replace ("\250", "š", $string); |
60 | // Latin capital letter Z with caron |
61 | while (ereg("\264", $string)) |
62 | $string = ereg_replace ("\264", "Ž", $string); |
63 | // Latin small letter z with caron |
64 | while (ereg("\270", $string)) |
65 | $string = ereg_replace ("\270", "ž", $string); |
66 | // Latin capital ligature OE |
67 | while (ereg("\274", $string)) |
68 | $string = ereg_replace ("\274", "Œ", $string); |
69 | // Latin small ligature oe |
70 | while (ereg("\275", $string)) |
71 | $string = ereg_replace ("\275", "œ", $string); |
72 | // Latin capital letter Y with diaeresis |
73 | while (ereg("\276", $string)) |
74 | $string = ereg_replace ("\276", "Ÿ", $string); |
75 | |
76 | return ($string); |
77 | } |
78 | |
79 | // Remove al 8 bit characters from all other ISO-8859 character sets |
80 | function charset_decode_iso_8859_default ($string) { |
81 | return (strtr($string, "\240\241\242\243\244\245\246\247". |
82 | "\250\251\252\253\254\255\256\257". |
83 | "\260\261\262\263\264\265\266\267". |
84 | "\270\271\272\273\274\275\276\277". |
85 | "\300\301\302\303\304\305\306\307". |
86 | "\310\311\312\313\314\315\316\317". |
87 | "\320\321\322\323\324\325\326\327". |
88 | "\330\331\332\333\334\335\336\337". |
89 | "\340\341\342\343\344\345\346\347". |
90 | "\350\351\352\353\354\355\356\357". |
91 | "\360\361\362\363\364\365\366\367". |
92 | "\370\371\372\373\374\375\376\377", |
93 | "????????????????????????????????????????". |
94 | "????????????????????????????????????????". |
95 | "????????????????????????????????????????". |
96 | "????????")); |
97 | |
98 | } |
99 | |
100 | // This is the same as ISO-646-NO and is used by some |
101 | // Microsoft programs when sending Norwegian characters |
102 | function charset_decode_ns_4551_1 ($string) { |
103 | // These characters are: |
104 | // Latin capital letter AE |
105 | // Latin capital letter O with stroke |
106 | // Latin capital letter A with ring above |
107 | // and the same as small letters |
108 |