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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) 1999-2004 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 | * |
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15 | * @link http://www.php.net/gettext Original php gettext manual |
16 | * |
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17 | * $Id$ |
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18 | * @package squirrelmail |
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19 | */ |
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20 | |
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21 | /** Almost everything requires global.php... */ |
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22 | require_once(SM_PATH . 'functions/global.php'); |
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23 | |
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24 | global $gettext_php_domain, $gettext_php_dir, $gettext_php_loaded, |
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25 | $gettext_php_translateStrings, $gettext_php_loaded_language, |
26 | $gettext_php_short_circuit; |
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27 | |
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28 | if (! isset($gettext_php_loaded)) { |
29 | $gettext_php_loaded = false; |
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30 | sqsession_register($gettext_php_loaded, 'gettext_php_loaded'); |
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31 | } |
32 | if (! isset($gettext_php_domain)) { |
33 | $gettext_php_domain = ''; |
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34 | sqsession_register($gettext_php_domain, 'gettext_php_domain'); |
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35 | } |
36 | if (! isset($gettext_php_dir)) { |
37 | $gettext_php_dir = ''; |
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38 | sqsession_register($gettext_php_dir, 'gettext_php_dir'); |
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39 | } |
40 | if (! isset($gettext_php_translateStrings)) { |
41 | $gettext_php_translateStrings = array(); |
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42 | sqsession_register($gettext_php_translateStrings, 'gettext_php_translateStrings'); |
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43 | } |
44 | if (! isset($gettext_php_loaded_language)) { |
45 | $gettext_php_loaded_language = ''; |
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46 | sqsession_register($gettext_php_loaded_language, 'gettext_php_loaded_language'); |
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47 | } |
48 | if (! isset($gettext_php_short_circuit)) { |
49 | $gettext_php_short_circuit = false; |
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50 | sqsession_register($gettext_php_short_circuit, 'gettext_php_short_circuit'); |
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51 | } |
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52 | |
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53 | /** |
54 | * Converts .po file into array and stores it in session. |
55 | * |
56 | * Used internally by _($str) function |
57 | * |
58 | * @internal function is used internally by functions/gettext.php code |
59 | */ |
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60 | function gettext_php_load_strings() { |
61 | global $squirrelmail_language, $gettext_php_translateStrings, |
62 | $gettext_php_domain, $gettext_php_dir, $gettext_php_loaded, |
63 | $gettext_php_loaded_language, $gettext_php_short_circuit; |
64 | |
65 | /* |
66 | * $squirrelmail_language gives 'en' for English, 'de' for German, |
67 | * etc. I didn't wanna use getenv or similar, but you easily could |
68 | * change my code to do that. |
69 | */ |
70 | |
71 | $gettext_php_translateStrings = array(); |
72 | |
73 | $gettext_php_short_circuit = false; /* initialization */ |
74 | |
75 | $filename = $gettext_php_dir; |
76 | if (substr($filename, -1) != '/') |
77 | $filename .= '/'; |
78 | $filename .= $squirrelmail_language . '/LC_MESSAGES/' . |
79 | $gettext_php_domain . '.po'; |
80 | |
81 | $file = @fopen($filename, 'r'); |
82 | if ($file == false) { |
83 | /* Uh-ho -- we can't load the file. Just fake it. :-) |
84 | This is also for English, which doesn't use translations */ |
85 | $gettext_php_loaded = true; |
86 | $gettext_php_loaded_language = $squirrelmail_language; |
87 | /* Avoid fuzzy matching when we didn't load strings */ |
88 | $gettext_php_short_circuit = true; |
89 | return; |
90 | } |
91 | |
92 | $key = ''; |
93 | $SkipRead = false; |
94 | while (! feof($file)) { |
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95 | if (! $SkipRead) { |
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96 | $line = trim(fgets($file, 4096)); |
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97 | } else { |
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98 | $SkipRead = false; |
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99 | } |
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100 | |
101 | if (ereg('^msgid "(.*)"$', $line, $match)) { |
102 | if ($match[1] == '') { |
103 | /* |
104 | * Potential multi-line |
105 | * msgid "" |
106 | * "string string " |
107 | * "string string" |
108 | */ |
109 | $key = ''; |
110 | $line = trim(fgets($file, 4096)); |
111 | while (ereg('^[ ]*"(.*)"[ ]*$', $line, $match)) { |
112 | $key .= $match[1]; |
113 | $line = trim(fgets($file, 4096)); |
114 | } |
115 | $SkipRead = true; |
116 | } else { |
117 | /* msgid "string string" */ |
118 | $key = $match[1]; |
119 | } |
120 | } elseif (ereg('^msgstr "(.*)"$', $line, $match)) { |
121 | if ($match[1] == '') { |
122 | /* |
123 | * Potential multi-line |
124 | * msgstr "" |
125 | * "string string " |
126 | * "string string" |
127 | */ |
128 | $gettext_php_translateStrings[$key] = ''; |
129 | $line = trim(fgets($file, 4096)); |
130 | while (ereg('^[ ]*"(.*)"[ ]*$', $line, $match)) { |
131 | $gettext_php_translateStrings[$key] .= $match[1]; |
132 | $line = trim(fgets($file, 4096)); |
133 | } |
134 | $SkipRead = true; |
135 | } else { |
136 | /* msgstr "string string" */ |
137 | $gettext_php_translateStrings[$key] = $match[1]; |
138 | } |
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139 | $gettext_php_translateStrings[$key] = |
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140 | stripslashes($gettext_php_translateStrings[$key]); |
141 | /* If there is no translation, just use the untranslated string */ |
142 | if ($gettext_php_translateStrings[$key] == '') { |
143 | $gettext_php_translateStrings[$key] = $key; |
144 | } |
145 | $key = ''; |
146 | } |
147 | } |
148 | fclose($file); |
149 | |
150 | $gettext_php_loaded = true; |
151 | $gettext_php_loaded_language = $squirrelmail_language; |
152 | } |
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153 | |
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154 | /** |
155 | * Alternative php gettext function (short form) |
156 | * |
157 | * @link http://www.php.net/function.gettext |
158 | * |
159 | * @param string $str English string |
160 | * @return string translated string |
161 | */ |
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162 | function _($str) { |
163 | global $gettext_php_loaded, $gettext_php_translateStrings, |
164 | $squirrelmail_language, $gettext_php_loaded_language, |
165 | $gettext_php_short_circuit; |
166 | |
167 | if (! $gettext_php_loaded || |
168 | $gettext_php_loaded_language != $squirrelmail_language) { |
169 | gettext_php_load_strings(); |
170 | } |
171 | |
172 | /* Try finding the exact string */ |
173 | if (isset($gettext_php_translateStrings[$str])) { |
174 | return $gettext_php_translateStrings[$str]; |
175 | } |
176 | |
177 | /* See if we should short-circuit */ |
178 | if ($gettext_php_short_circuit) { |
179 | $gettext_php_translateStrings[$str] = $str; |
180 | return $str; |
181 | } |
182 | |
183 | /* Look for a string that is very close to the one we want |
184 | Very computationally expensive */ |
185 | $oldPercent = 0; |
186 | $oldStr = ''; |
187 | $newPercent = 0; |
188 | foreach ($gettext_php_translateStrings as $k => $v) { |
189 | similar_text($str, $k, $newPercent); |
190 | if ($newPercent > $oldPercent) { |
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191 | $oldStr = $v; |
192 | $oldPercent = $newPercent; |
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193 | } |
194 | } |
195 | /* Require 80% match or better |
196 | Adjust to suit your needs */ |
197 | if ($oldPercent > 80) { |
198 | /* Remember this so we don't need to search again */ |
199 | $gettext_php_translateStrings[$str] = $oldStr; |
200 | return $oldStr; |
201 | } |
202 | |
203 | /* Remember this so we don't need to search again */ |
204 | $gettext_php_translateStrings[$str] = $str; |
205 | return $str; |
206 | } |
207 | |
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208 | /** |
209 | * Alternative php bindtextdomain function |
210 | * |
211 | * Sets path to directory containing domain translations |
212 | * |
213 | * @link http://www.php.net/function.bindtextdomain |
214 | * @param string $name gettext domain name |
215 | * @param string $dir directory that contains all translations |
216 | * @return string path to translation directory |
217 | */ |
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218 | function bindtextdomain($name, $dir) { |
219 | global $gettext_php_domain, $gettext_php_dir, $gettext_php_loaded; |
220 | |
221 | if ($gettext_php_domain != $name) { |
222 | $gettext_php_domain = $name; |
223 | $gettext_php_loaded = false; |
224 | } |
225 | if ($gettext_php_dir != $dir) { |
226 | $gettext_php_dir = $dir; |
227 | $gettext_php_loaded = false; |
228 | } |
229 | |
230 | return $dir; |
231 | } |
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232 | |
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233 | /** |
234 | * Alternative php textdomain function |
235 | * |
236 | * Sets default domain name |
237 | * |
238 | * @link http://www.php.net/function.textdomain |
239 | * @param string $name gettext domain name |
240 | * @return string gettext domain name |
241 | */ |
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242 | function textdomain($name = false) { |
243 | global $gettext_php_domain, $gettext_php_loaded; |
244 | |
245 | if ($name != false && $gettext_php_domain != $name) { |
246 | $gettext_php_domain = $name; |
247 | $gettext_php_loaded = false; |
248 | } |
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249 | |
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250 | return $gettext_php_domain; |
251 | } |
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252 | ?> |