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1 | <?php |
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2 | |
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3 | /** |
4 | * gettext.php |
5 | * |
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6 | * Copyright (c) 1999-2003 The SquirrelMail Project Team |
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7 | * Licensed under the GNU GPL. For full terms see the file COPYING. |
8 | * |
9 | * Alternate to the system's built-in gettext. |
10 | * relies on .po files (can't read .mo easily). |
11 | * Uses the session for caching (speed increase) |
12 | * Possible use in other PHP scripts? The only SM-specific thing is |
13 | * $sm_language, I think |
14 | * |
15 | * $Id$ |
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16 | * @package squirrelmail |
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17 | */ |
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18 | |
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19 | /** Almost everything requires global.php... */ |
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20 | require_once(SM_PATH . 'functions/global.php'); |
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21 | |
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22 | global $gettext_php_domain, $gettext_php_dir, $gettext_php_loaded, |
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23 | $gettext_php_translateStrings, $gettext_php_loaded_language, |
24 | $gettext_php_short_circuit; |
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25 | |
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26 | if (! isset($gettext_php_loaded)) { |
27 | $gettext_php_loaded = false; |
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28 | sqsession_register($gettext_php_loaded, 'gettext_php_loaded'); |
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29 | } |
30 | if (! isset($gettext_php_domain)) { |
31 | $gettext_php_domain = ''; |
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32 | sqsession_register($gettext_php_domain, 'gettext_php_domain'); |
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33 | } |
34 | if (! isset($gettext_php_dir)) { |
35 | $gettext_php_dir = ''; |
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36 | sqsession_register($gettext_php_dir, 'gettext_php_dir'); |
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37 | } |
38 | if (! isset($gettext_php_translateStrings)) { |
39 | $gettext_php_translateStrings = array(); |
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40 | sqsession_register($gettext_php_translateStrings, 'gettext_php_translateStrings'); |
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41 | } |
42 | if (! isset($gettext_php_loaded_language)) { |
43 | $gettext_php_loaded_language = ''; |
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44 | sqsession_register($gettext_php_loaded_language, 'gettext_php_loaded_language'); |
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45 | } |
46 | if (! isset($gettext_php_short_circuit)) { |
47 | $gettext_php_short_circuit = false; |
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48 | sqsession_register($gettext_php_short_circuit, 'gettext_php_short_circuit'); |
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49 | } |
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50 | |
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51 | function gettext_php_load_strings() { |
52 | global $squirrelmail_language, $gettext_php_translateStrings, |
53 | $gettext_php_domain, $gettext_php_dir, $gettext_php_loaded, |
54 | $gettext_php_loaded_language, $gettext_php_short_circuit; |
55 | |
56 | /* |
57 | * $squirrelmail_language gives 'en' for English, 'de' for German, |
58 | * etc. I didn't wanna use getenv or similar, but you easily could |
59 | * change my code to do that. |
60 | */ |
61 | |
62 | $gettext_php_translateStrings = array(); |
63 | |
64 | $gettext_php_short_circuit = false; /* initialization */ |
65 | |
66 | $filename = $gettext_php_dir; |
67 | if (substr($filename, -1) != '/') |
68 | $filename .= '/'; |
69 | $filename .= $squirrelmail_language . '/LC_MESSAGES/' . |
70 | $gettext_php_domain . '.po'; |
71 | |
72 | $file = @fopen($filename, 'r'); |
73 | if ($file == false) { |
74 | /* Uh-ho -- we can't load the file. Just fake it. :-) |
75 | This is also for English, which doesn't use translations */ |
76 | $gettext_php_loaded = true; |
77 | $gettext_php_loaded_language = $squirrelmail_language; |
78 | /* Avoid fuzzy matching when we didn't load strings */ |
79 | $gettext_php_short_circuit = true; |
80 | return; |
81 | } |
82 | |
83 | $key = ''; |
84 | $SkipRead = false; |
85 | while (! feof($file)) { |
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86 | if (! $SkipRead) { |
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87 | $line = trim(fgets($file, 4096)); |
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88 | } else { |
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89 | $SkipRead = false; |
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90 | } |
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91 | |
92 | if (ereg('^msgid "(.*)"$', $line, $match)) { |
93 | if ($match[1] == '') { |
94 | /* |
95 | * Potential multi-line |
96 | * msgid "" |
97 | * "string string " |
98 | * "string string" |
99 | */ |
100 | $key = ''; |
101 | $line = trim(fgets($file, 4096)); |
102 | while (ereg('^[ ]*"(.*)"[ ]*$', $line, $match)) { |
103 | $key .= $match[1]; |
104 | $line = trim(fgets($file, 4096)); |
105 | } |
106 | $SkipRead = true; |
107 | } else { |
108 | /* msgid "string string" */ |
109 | $key = $match[1]; |
110 | } |
111 | } elseif (ereg('^msgstr "(.*)"$', $line, $match)) { |
112 | if ($match[1] == '') { |
113 | /* |
114 | * Potential multi-line |
115 | * msgstr "" |
116 | * "string string " |
117 | * "string string" |
118 | */ |
119 | $gettext_php_translateStrings[$key] = ''; |
120 | $line = trim(fgets($file, 4096)); |
121 | while (ereg('^[ ]*"(.*)"[ ]*$', $line, $match)) { |
122 | $gettext_php_translateStrings[$key] .= $match[1]; |
123 | $line = trim(fgets($file, 4096)); |
124 | } |
125 | $SkipRead = true; |
126 | } else { |
127 | /* msgstr "string string" */ |
128 | $gettext_php_translateStrings[$key] = $match[1]; |
129 | } |
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130 | $gettext_php_translateStrings[$key] = |
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131 | stripslashes($gettext_php_translateStrings[$key]); |
132 | /* If there is no translation, just use the untranslated string */ |
133 | if ($gettext_php_translateStrings[$key] == '') { |
134 | $gettext_php_translateStrings[$key] = $key; |
135 | } |
136 | $key = ''; |
137 | } |
138 | } |
139 | fclose($file); |
140 | |
141 | $gettext_php_loaded = true; |
142 | $gettext_php_loaded_language = $squirrelmail_language; |
143 | } |
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144 | |
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145 | function _($str) { |
146 | global $gettext_php_loaded, $gettext_php_translateStrings, |
147 | $squirrelmail_language, $gettext_php_loaded_language, |
148 | $gettext_php_short_circuit; |
149 | |
150 | if (! $gettext_php_loaded || |
151 | $gettext_php_loaded_language != $squirrelmail_language) { |
152 | gettext_php_load_strings(); |
153 | } |
154 | |
155 | /* Try finding the exact string */ |
156 | if (isset($gettext_php_translateStrings[$str])) { |
157 | return $gettext_php_translateStrings[$str]; |
158 | } |
159 | |
160 | /* See if we should short-circuit */ |
161 | if ($gettext_php_short_circuit) { |
162 | $gettext_php_translateStrings[$str] = $str; |
163 | return $str; |
164 | } |
165 | |
166 | /* Look for a string that is very close to the one we want |
167 | Very computationally expensive */ |
168 | $oldPercent = 0; |
169 | $oldStr = ''; |
170 | $newPercent = 0; |
171 | foreach ($gettext_php_translateStrings as $k => $v) { |
172 | similar_text($str, $k, $newPercent); |
173 | if ($newPercent > $oldPercent) { |
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174 | $oldStr = $v; |
175 | $oldPercent = $newPercent; |
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176 | } |
177 | } |
178 | /* Require 80% match or better |
179 | Adjust to suit your needs */ |
180 | if ($oldPercent > 80) { |
181 | /* Remember this so we don't need to search again */ |
182 | $gettext_php_translateStrings[$str] = $oldStr; |
183 | return $oldStr; |
184 | } |
185 | |
186 | /* Remember this so we don't need to search again */ |
187 | $gettext_php_translateStrings[$str] = $str; |
188 | return $str; |
189 | } |
190 | |
191 | function bindtextdomain($name, $dir) { |
192 | global $gettext_php_domain, $gettext_php_dir, $gettext_php_loaded; |
193 | |
194 | if ($gettext_php_domain != $name) { |
195 | $gettext_php_domain = $name; |
196 | $gettext_php_loaded = false; |
197 | } |
198 | if ($gettext_php_dir != $dir) { |
199 | $gettext_php_dir = $dir; |
200 | $gettext_php_loaded = false; |
201 | } |
202 | |
203 | return $dir; |
204 | } |
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205 | |
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206 | function textdomain($name = false) { |
207 | global $gettext_php_domain, $gettext_php_loaded; |
208 | |
209 | if ($name != false && $gettext_php_domain != $name) { |
210 | $gettext_php_domain = $name; |
211 | $gettext_php_loaded = false; |
212 | } |
213 | return $gettext_php_domain; |
214 | } |
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215 | |
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216 | ?> |