summaryrefslogtreecommitdiff
path: root/lib/language.php
blob: cb12cca69220711e871bae7ef3db34b0afeda7f8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
<?php
/**
 * StatusNet, the distributed open-source microblogging tool
 *
 * utility functions for i18n
 *
 * PHP version 5
 *
 * LICENCE: This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @category I18n
 * @package  StatusNet
 * @author   Matthew Gregg <matthew.gregg@gmail.com>
 * @author   Ciaran Gultnieks <ciaran@ciarang.com>
 * @author   Evan Prodromou <evan@status.net>
 * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
 * @link     http://status.net/
 */

if (!defined('STATUSNET') && !defined('LACONICA')) {
    exit(1);
}

// Locale category constants are usually predefined, but may not be
// on some systems such as Win32.
$LC_CATEGORIES = array('LC_CTYPE',
                       'LC_NUMERIC',
                       'LC_TIME',
                       'LC_COLLATE',
                       'LC_MONETARY',
                       'LC_MESSAGES',
                       'LC_ALL');
foreach ($LC_CATEGORIES as $key => $name) {
    if (!defined($name)) {
        define($name, $key);
    }
}

if (!function_exists('gettext')) {
    require_once("php-gettext/gettext.inc");
}


if (!function_exists('dpgettext')) {
    /**
     * Context-aware dgettext wrapper; use when messages in different contexts
     * won't be distinguished from the English source but need different translations.
     * The context string will appear as msgctxt in the .po files.
     *
     * Not currently exposed in PHP's gettext module; implemented to be compat
     * with gettext.h's macros.
     *
     * @param string $domain domain identifier
     * @param string $context context identifier, should be some key like "menu|file"
     * @param string $msgid English source text
     * @return string original or translated message
     */
    function dpgettext($domain, $context, $msg)
    {
        $msgid = $context . "\004" . $msg;
        $out = dcgettext($domain, $msgid, LC_MESSAGES);
        if ($out == $msgid) {
            return $msg;
        } else {
            return $out;
        }
    }
}

if (!function_exists('pgettext')) {
    /**
     * Context-aware gettext wrapper; use when messages in different contexts
     * won't be distinguished from the English source but need different translations.
     * The context string will appear as msgctxt in the .po files.
     *
     * Not currently exposed in PHP's gettext module; implemented to be compat
     * with gettext.h's macros.
     *
     * @param string $context context identifier, should be some key like "menu|file"
     * @param string $msgid English source text
     * @return string original or translated message
     */
    function pgettext($context, $msg)
    {
        return dpgettext(textdomain(NULL), $context, $msg);
    }
}

if (!function_exists('dnpgettext')) {
    /**
     * Context-aware dngettext wrapper; use when messages in different contexts
     * won't be distinguished from the English source but need different translations.
     * The context string will appear as msgctxt in the .po files.
     *
     * Not currently exposed in PHP's gettext module; implemented to be compat
     * with gettext.h's macros.
     *
     * @param string $domain domain identifier
     * @param string $context context identifier, should be some key like "menu|file"
     * @param string $msg singular English source text
     * @param string $plural plural English source text
     * @param int $n number of items to control plural selection
     * @return string original or translated message
     */
    function dnpgettext($domain, $context, $msg, $plural, $n)
    {
        $msgid = $context . "\004" . $msg;
        $out = dcngettext($domain, $msgid, $plural, $n, LC_MESSAGES);
        if ($out == $msgid) {
            return $msg;
        } else {
            return $out;
        }
    }
}

if (!function_exists('npgettext')) {
    /**
     * Context-aware ngettext wrapper; use when messages in different contexts
     * won't be distinguished from the English source but need different translations.
     * The context string will appear as msgctxt in the .po files.
     *
     * Not currently exposed in PHP's gettext module; implemented to be compat
     * with gettext.h's macros.
     *
     * @param string $context context identifier, should be some key like "menu|file"
     * @param string $msg singular English source text
     * @param string $plural plural English source text
     * @param int $n number of items to control plural selection
     * @return string original or translated message
     */
    function npgettext($context, $msg, $plural, $n)
    {
        return dnpgettext(textdomain(NULL), $msgid, $plural, $n, LC_MESSAGES);
    }
}

/**
 * Shortcut for *gettext functions with smart domain detection.
 *
 * If calling from a plugin, this function checks which plugin was
 * being called from and uses that as text domain, which will have
 * been set up during plugin initialization.
 *
 * Also handles plurals and contexts depending on what parameters
 * are passed to it:
 *
 *   gettext -> _m($msg)
 *  ngettext -> _m($msg1, $msg2, $n)
 *  pgettext -> _m($ctx, $msg)
 * npgettext -> _m($ctx, $msg1, $msg2, $n)
 *
 * @fixme may not work properly in eval'd code
 *
 * @param string $msg
 * @return string
 */
function _m($msg/*, ...*/)
{
    $domain = _mdomain(debug_backtrace());
    $args = func_get_args();
    switch(count($args)) {
    case 1: return dgettext($domain, $msg);
    case 2: return dpgettext($domain, $args[0], $args[1]);
    case 3: return dngettext($domain, $args[0], $args[1], $args[2]);
    case 4: return dnpgettext($domain, $args[0], $args[1], $args[2], $args[3]);
    default: throw new Exception("Bad parameter count to _m()");
    }
}

/**
 * Looks for which plugin we've been called from to set the gettext domain;
 * if not in a plugin subdirectory, we'll use the default 'statusnet'.
 *
 * Note: we can't return null for default domain since most of the PHP gettext
 * wrapper functions turn null into "" before passing to the backend library.
 *
 * @param array $backtrace debug_backtrace() output
 * @return string
 * @private
 * @fixme could explode if SN is under a 'plugins' folder or share name.
 */
function _mdomain($backtrace)
{
    /*
      0 => 
        array
          'file' => string '/var/www/mublog/plugins/FeedSub/FeedSubPlugin.php' (length=49)
          'line' => int 77
          'function' => string '_m' (length=2)
          'args' => 
            array
              0 => &string 'Feeds' (length=5)
    */
    static $cached;
    $path = $backtrace[0]['file'];
    if (!isset($cached[$path])) {
        if (DIRECTORY_SEPARATOR !== '/') {
            $path = strtr($path, DIRECTORY_SEPARATOR, '/');
        }
        $plug = strpos($path, '/plugins/');
        if ($plug === false) {
            // We're not in a plugin; return default domain.
            return 'statusnet';
        } else {
            $cut = $plug + 9;
            $cut2 = strpos($path, '/', $cut);
            if ($cut2) {
                $cached[$path] = substr($path, $cut, $cut2 - $cut);
            } else {
                // We might be running directly from the plugins dir?
                // If so, there's no place to store locale info.
                return 'statusnet';
            }
        }
    }
    return $cached[$path];
}


/**
 * Content negotiation for language codes
 *
 * @param string $httplang HTTP Accept-Language header
 *
 * @return string language code for best language match
 */

function client_prefered_language($httplang)
{
    $client_langs = array();

    $all_languages = common_config('site', 'languages');

    preg_match_all('"(((\S\S)-?(\S\S)?)(;q=([0-9.]+))?)\s*(,\s*|$)"',
                   strtolower($httplang), $httplang);

    for ($i = 0; $i < count($httplang); $i++) {
        if (!empty($httplang[2][$i])) {
            // if no q default to 1.0
            $client_langs[$httplang[2][$i]] =
              ($httplang[6][$i]? (float) $httplang[6][$i] : 1.0 - ($i*0.01));
        }
        if (!empty($httplang[3][$i]) && empty($client_langs[$httplang[3][$i]])) {
            // if a catchall default 0.01 lower
            $client_langs[$httplang[3][$i]] =
              ($httplang[6][$i]? (float) $httplang[6][$i]-0.01 : 0.99);
        }
    }
    // sort in decending q
    arsort($client_langs);

    foreach ($client_langs as $lang => $q) {
        if (isset($all_languages[$lang])) {
            return($all_languages[$lang]['lang']);
        }
    }
    return false;
}

/**
 * returns a simple code -> name mapping for languages
 *
 * @return array map of available languages by code to language name.
 */

function get_nice_language_list()
{
    $nice_lang = array();

    $all_languages = common_config('site', 'languages');

    foreach ($all_languages as $lang) {
        $nice_lang = $nice_lang + array($lang['lang'] => $lang['name']);
    }
    return $nice_lang;
}

/**
 * Get a list of all languages that are enabled in the default config
 *
 * This should ONLY be called when setting up the default config in common.php.
 * Any other attempt to get a list of languages should instead call
 * common_config('site','languages')
 *
 * @return array mapping of language codes to language info
 */
function get_all_languages() {
    return array(
        'ar'      => array('q' => 0.8, 'lang' => 'ar', 'name' => 'Arabic', 'direction' => 'rtl'),
        'arz'     => array('q' => 0.8, 'lang' => 'arz', 'name' => 'Egyptian Spoken Arabic', 'direction' => 'rtl'),
        'bg'      => array('q' => 0.8, 'lang' => 'bg', 'name' => 'Bulgarian', 'direction' => 'ltr'),
        'br'      => array('q' => 0.8, 'lang' => 'br', 'name' => 'Breton', 'direction' => 'ltr'),
        'ca'      => array('q' => 0.5, 'lang' => 'ca', 'name' => 'Catalan', 'direction' => 'ltr'),
        'cs'      => array('q' => 0.5, 'lang' => 'cs', 'name' => 'Czech', 'direction' => 'ltr'),
        'de'      => array('q' => 0.8, 'lang' => 'de', 'name' => 'German', 'direction' => 'ltr'),
        'el'      => array('q' => 0.1, 'lang' => 'el',    'name' => 'Greek', 'direction' => 'ltr'),
        'en-us'   => array('q' => 1, 'lang' => 'en', 'name' => 'English (US)', 'direction' => 'ltr'),
        'en-gb'   => array('q' => 1, 'lang' => 'en_GB', 'name' => 'English (British)', 'direction' => 'ltr'),
        'en'      => array('q' => 1, 'lang' => 'en',    'name' => 'English (US)', 'direction' => 'ltr'),
        'es'      => array('q' => 1, 'lang' => 'es',    'name' => 'Spanish', 'direction' => 'ltr'),
        'fi'      => array('q' => 1, 'lang' => 'fi', 'name' => 'Finnish', 'direction' => 'ltr'),
        'fa'      => array('q' => 1, 'lang' => 'fa', 'name' => 'Persian', 'direction' => 'rtl'),
        'fr-fr'   => array('q' => 1, 'lang' => 'fr', 'name' => 'French', 'direction' => 'ltr'),
        'ga'      => array('q' => 0.5, 'lang' => 'ga', 'name' => 'Galician', 'direction' => 'ltr'),
        'he'      => array('q' => 0.5, 'lang' => 'he', 'name' => 'Hebrew', 'direction' => 'rtl'),
        'hsb'     => array('q' => 0.8, 'lang' => 'hsb', 'name' => 'Upper Sorbian', 'direction' => 'ltr'),
        'ia'      => array('q' => 0.8, 'lang' => 'ia', 'name' => 'Interlingua', 'direction' => 'ltr'),
        'is'      => array('q' => 0.1, 'lang' => 'is', 'name' => 'Icelandic', 'direction' => 'ltr'),
        'it'      => array('q' => 1, 'lang' => 'it', 'name' => 'Italian', 'direction' => 'ltr'),
        'jp'      => array('q' => 0.5, 'lang' => 'ja', 'name' => 'Japanese', 'direction' => 'ltr'),
        'ko'      => array('q' => 0.9, 'lang' => 'ko',    'name' => 'Korean', 'direction' => 'ltr'),
        'mk'      => array('q' => 0.5, 'lang' => 'mk', 'name' => 'Macedonian', 'direction' => 'ltr'),
        'nb'      => array('q' => 0.1, 'lang' => 'nb', 'name' => 'Norwegian (Bokmål)', 'direction' => 'ltr'),
        'no'      => array('q' => 0.1, 'lang' => 'nb', 'name' => 'Norwegian (Bokmål)', 'direction' => 'ltr'),
        'nn'      => array('q' => 1, 'lang' => 'nn', 'name' => 'Norwegian (Nynorsk)', 'direction' => 'ltr'),
        'nl'      => array('q' => 0.5, 'lang' => 'nl', 'name' => 'Dutch', 'direction' => 'ltr'),
        'pl'      => array('q' => 0.5, 'lang' => 'pl', 'name' => 'Polish', 'direction' => 'ltr'),
        'pt'      => array('q' => 0.1, 'lang' => 'pt',    'name' => 'Portuguese', 'direction' => 'ltr'),
        'pt-br'   => array('q' => 0.9, 'lang' => 'pt_BR', 'name' => 'Portuguese Brazil', 'direction' => 'ltr'),
        'ru'      => array('q' => 0.9, 'lang' => 'ru', 'name' => 'Russian', 'direction' => 'ltr'),
        'sv'      => array('q' => 0.8, 'lang' => 'sv', 'name' => 'Swedish', 'direction' => 'ltr'),
        'te'      => array('q' => 0.3, 'lang' => 'te', 'name' => 'Telugu', 'direction' => 'ltr'),
        'tr'      => array('q' => 0.5, 'lang' => 'tr', 'name' => 'Turkish', 'direction' => 'ltr'),
        'uk'      => array('q' => 1, 'lang' => 'uk', 'name' => 'Ukrainian', 'direction' => 'ltr'),
        'vi'      => array('q' => 0.8, 'lang' => 'vi', 'name' => 'Vietnamese', 'direction' => 'ltr'),
        'zh-cn'   => array('q' => 0.9, 'lang' => 'zh_CN', 'name' => 'Chinese (Simplified)', 'direction' => 'ltr'),
        'zh-hant' => array('q' => 0.2, 'lang' => 'zh_TW', 'name' => 'Chinese (Taiwanese)', 'direction' => 'ltr'),
    );
}