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Merge "Add CollationFa"
[lhc/web/wiklou.git] / languages / Language.php
1 <?php
2 /**
3 * Internationalisation code.
4 * See https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation for more information.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 * http://www.gnu.org/copyleft/gpl.html
20 *
21 * @file
22 * @ingroup Language
23 */
24
25 /**
26 * @defgroup Language Language
27 */
28
29 use CLDRPluralRuleParser\Evaluator;
30
31 /**
32 * Internationalisation code
33 * @ingroup Language
34 */
35 class Language {
36 /**
37 * @var LanguageConverter
38 */
39 public $mConverter;
40
41 public $mVariants, $mCode, $mLoaded = false;
42 public $mMagicExtensions = [], $mMagicHookDone = false;
43 private $mHtmlCode = null, $mParentLanguage = false;
44
45 public $dateFormatStrings = [];
46 public $mExtendedSpecialPageAliases;
47
48 protected $namespaceNames, $mNamespaceIds, $namespaceAliases;
49
50 /**
51 * ReplacementArray object caches
52 */
53 public $transformData = [];
54
55 /**
56 * @var LocalisationCache
57 */
58 static public $dataCache;
59
60 static public $mLangObjCache = [];
61
62 static public $mWeekdayMsgs = [
63 'sunday', 'monday', 'tuesday', 'wednesday', 'thursday',
64 'friday', 'saturday'
65 ];
66
67 static public $mWeekdayAbbrevMsgs = [
68 'sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat'
69 ];
70
71 static public $mMonthMsgs = [
72 'january', 'february', 'march', 'april', 'may_long', 'june',
73 'july', 'august', 'september', 'october', 'november',
74 'december'
75 ];
76 static public $mMonthGenMsgs = [
77 'january-gen', 'february-gen', 'march-gen', 'april-gen', 'may-gen', 'june-gen',
78 'july-gen', 'august-gen', 'september-gen', 'october-gen', 'november-gen',
79 'december-gen'
80 ];
81 static public $mMonthAbbrevMsgs = [
82 'jan', 'feb', 'mar', 'apr', 'may', 'jun', 'jul', 'aug',
83 'sep', 'oct', 'nov', 'dec'
84 ];
85
86 static public $mIranianCalendarMonthMsgs = [
87 'iranian-calendar-m1', 'iranian-calendar-m2', 'iranian-calendar-m3',
88 'iranian-calendar-m4', 'iranian-calendar-m5', 'iranian-calendar-m6',
89 'iranian-calendar-m7', 'iranian-calendar-m8', 'iranian-calendar-m9',
90 'iranian-calendar-m10', 'iranian-calendar-m11', 'iranian-calendar-m12'
91 ];
92
93 static public $mHebrewCalendarMonthMsgs = [
94 'hebrew-calendar-m1', 'hebrew-calendar-m2', 'hebrew-calendar-m3',
95 'hebrew-calendar-m4', 'hebrew-calendar-m5', 'hebrew-calendar-m6',
96 'hebrew-calendar-m7', 'hebrew-calendar-m8', 'hebrew-calendar-m9',
97 'hebrew-calendar-m10', 'hebrew-calendar-m11', 'hebrew-calendar-m12',
98 'hebrew-calendar-m6a', 'hebrew-calendar-m6b'
99 ];
100
101 static public $mHebrewCalendarMonthGenMsgs = [
102 'hebrew-calendar-m1-gen', 'hebrew-calendar-m2-gen', 'hebrew-calendar-m3-gen',
103 'hebrew-calendar-m4-gen', 'hebrew-calendar-m5-gen', 'hebrew-calendar-m6-gen',
104 'hebrew-calendar-m7-gen', 'hebrew-calendar-m8-gen', 'hebrew-calendar-m9-gen',
105 'hebrew-calendar-m10-gen', 'hebrew-calendar-m11-gen', 'hebrew-calendar-m12-gen',
106 'hebrew-calendar-m6a-gen', 'hebrew-calendar-m6b-gen'
107 ];
108
109 static public $mHijriCalendarMonthMsgs = [
110 'hijri-calendar-m1', 'hijri-calendar-m2', 'hijri-calendar-m3',
111 'hijri-calendar-m4', 'hijri-calendar-m5', 'hijri-calendar-m6',
112 'hijri-calendar-m7', 'hijri-calendar-m8', 'hijri-calendar-m9',
113 'hijri-calendar-m10', 'hijri-calendar-m11', 'hijri-calendar-m12'
114 ];
115
116 /**
117 * @since 1.20
118 * @var array
119 */
120 static public $durationIntervals = [
121 'millennia' => 31556952000,
122 'centuries' => 3155695200,
123 'decades' => 315569520,
124 'years' => 31556952, // 86400 * ( 365 + ( 24 * 3 + 25 ) / 400 )
125 'weeks' => 604800,
126 'days' => 86400,
127 'hours' => 3600,
128 'minutes' => 60,
129 'seconds' => 1,
130 ];
131
132 /**
133 * Cache for language fallbacks.
134 * @see Language::getFallbacksIncludingSiteLanguage
135 * @since 1.21
136 * @var array
137 */
138 static private $fallbackLanguageCache = [];
139
140 /**
141 * Cache for grammar rules data
142 * @var MapCacheLRU|null
143 */
144 static private $grammarTransformations;
145
146 /**
147 * Cache for language names
148 * @var HashBagOStuff|null
149 */
150 static private $languageNameCache;
151
152 /**
153 * Unicode directional formatting characters, for embedBidi()
154 */
155 static private $lre = "\xE2\x80\xAA"; // U+202A LEFT-TO-RIGHT EMBEDDING
156 static private $rle = "\xE2\x80\xAB"; // U+202B RIGHT-TO-LEFT EMBEDDING
157 static private $pdf = "\xE2\x80\xAC"; // U+202C POP DIRECTIONAL FORMATTING
158
159 /**
160 * Directionality test regex for embedBidi(). Matches the first strong directionality codepoint:
161 * - in group 1 if it is LTR
162 * - in group 2 if it is RTL
163 * Does not match if there is no strong directionality codepoint.
164 *
165 * The form is '/(?:([strong ltr codepoint])|([strong rtl codepoint]))/u' .
166 *
167 * Generated by UnicodeJS (see tools/strongDir) from the UCD; see
168 * https://git.wikimedia.org/summary/unicodejs.git .
169 */
170 // @codingStandardsIgnoreStart
171 // @codeCoverageIgnoreStart
172 static private $strongDirRegex = 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03c}\x{3041}-\x{3096}\x{309d}-\x{309f}\x{30a1}-\x{30fa}\x{30fc}-\x{30ff}\x{3105}-\x{312d}\x{3131}-\x{318e}\x{3190}-\x{31ba}\x{31f0}-\x{321c}\x{3220}-\x{324f}\x{3260}-\x{327b}\x{327f}-\x{32b0}\x{32c0}-\x{32cb}\x{32d0}-\x{32fe}\x{3300}-\x{3376}\x{337b}-\x{33dd}\x{33e0}-\x{33fe}\x{3400}-\x{4db5}\x{4e00}-\x{9fd5}\x{a000}-\x{a48c}\x{a4d0}-\x{a60c}\x{a610}-\x{a62b}\x{a640}-\x{a66e}\x{a680}-\x{a69d}\x{a6a0}-\x{a6ef}\x{a6f2}-\x{a6f7}\x{a722}-\x{a787}\x{a789}-\x{a7ad}\x{a7b0}-\x{a7b7}\x{a7f7}-\x{a801}\x{a803}-\x{a805}\x{a807}-\x{a80a}\x{a80c}-\x{a824}\x{a827}\x{a830}-\x{a837}\x{a840}-\x{a873}\x{a880}-\x{a8c3}\x{a8ce}-\x{a8d9}\x{a8f2}-\x{a8fd}\x{a900}-\x{a925}\x{a92e}-\x{a946}\x{a952}\x{a953}\x{a95f}-\x{a97c}\x{a983}-\x{a9b2}\x{a9b4}\x{a9b5}\x{a9ba}\x{a9bb}\x{a9bd}-\x{a9cd}\x{a9cf}-\x{a9d9}\x{a9de}-\x{a9e4}\x{a9e6}-\x{a9fe}\x{aa00}-\x{aa28}\x{aa2f}\x{aa30}\x{aa33}\x{aa34}\x{aa40}-\x{aa42}\x{aa44}-\x{aa4b}\x{aa4d}\x{aa50}-\x{aa59}\x{aa5c}-\x{aa7b}\x{aa7d}-\x{aaaf}\x{aab1}\x{aab5}\x{aab6}\x{aab9}-\x{aabd}\x{aac0}\x{aac2}\x{aadb}-\x{aaeb}\x{aaee}-\x{aaf5}\x{ab01}-\x{ab06}\x{ab09}-\x{ab0e}\x{ab11}-\x{ab16}\x{ab20}-\x{ab26}\x{ab28}-\x{ab2e}\x{ab30}-\x{ab65}\x{ab70}-\x{abe4}\x{abe6}\x{abe7}\x{abe9}-\x{abec}\x{abf0}-\x{abf9}\x{ac00}-\x{d7a3}\x{d7b0}-\x{d7c6}\x{d7cb}-\x{d7fb}\x{e000}-\x{fa6d}\x{fa70}-\x{fad9}\x{fb00}-\x{fb06}\x{fb13}-\x{fb17}\x{ff21}-\x{ff3a}\x{ff41}-\x{ff5a}\x{ff66}-\x{ffbe}\x{ffc2}-\x{ffc7}\x{ffca}-\x{ffcf}\x{ffd2}-\x{ffd7}\x{ffda}-\x{ffdc}\x{10000}-\x{1000b}\x{1000d}-\x{10026}\x{10028}-\x{1003a}\x{1003c}\x{1003d}\x{1003f}-\x{1004d}\x{10050}-\x{1005d}\x{10080}-\x{100fa}\x{10100}\x{10102}\x{10107}-\x{10133}\x{10137}-\x{1013f}\x{101d0}-\x{101fc}\x{10280}-\x{1029c}\x{102a0}-\x{102d0}\x{10300}-\x{10323}\x{10330}-\x{1034a}\x{10350}-\x{10375}\x{10380}-\x{1039d}\x{1039f}-\x{103c3}\x{103c8}-\x{103d5}\x{10400}-\x{1049d}\x{104a0}-\x{104a9}\x{10500}-\x{10527}\x{10530}-\x{10563}\x{1056f}\x{10600}-\x{10736}\x{10740}-\x{10755}\x{10760}-\x{10767}\x{11000}\x{11002}-\x{11037}\x{11047}-\x{1104d}\x{11066}-\x{1106f}\x{11082}-\x{110b2}\x{110b7}\x{110b8}\x{110bb}-\x{110c1}\x{110d0}-\x{110e8}\x{110f0}-\x{110f9}\x{11103}-\x{11126}\x{1112c}\x{11136}-\x{11143}\x{11150}-\x{11172}\x{11174}-\x{11176}\x{11182}-\x{111b5}\x{111bf}-\x{111c9}\x{111cd}\x{111d0}-\x{111df}\x{111e1}-\x{111f4}\x{11200}-\x{11211}\x{11213}-\x{1122e}\x{11232}\x{11233}\x{11235}\x{11238}-\x{1123d}\x{11280}-\x{11286}\x{11288}\x{1128a}-\x{1128d}\x{1128f}-\x{1129d}\x{1129f}-\x{112a9}\x{112b0}-\x{112de}\x{112e0}-\x{112e2}\x{112f0}-\x{112f9}\x{11302}\x{11303}\x{11305}-\x{1130c}\x{1130f}\x{11310}\x{11313}-\x{11328}\x{1132a}-\x{11330}\x{11332}\x{11333}\x{11335}-\x{11339}\x{1133d}-\x{1133f}\x{11341}-\x{11344}\x{11347}\x{11348}\x{1134b}-\x{1134d}\x{11350}\x{11357}\x{1135d}-\x{11363}\x{11480}-\x{114b2}\x{114b9}\x{114bb}-\x{114be}\x{114c1}\x{114c4}-\x{114c7}\x{114d0}-\x{114d9}\x{11580}-\x{115b1}\x{115b8}-\x{115bb}\x{115be}\x{115c1}-\x{115db}\x{11600}-\x{11632}\x{1163b}\x{1163c}\x{1163e}\x{11641}-\x{11644}\x{11650}-\x{11659}\x{11680}-\x{116aa}\x{116ac}\x{116ae}\x{116af}\x{116b6}\x{116c0}-\x{116c9}\x{11700}-\x{11719}\x{11720}\x{11721}\x{11726}\x{11730}-\x{1173f}\x{118a0}-\x{118f2}\x{118ff}\x{11ac0}-\x{11af8}\x{12000}-\x{12399}\x{12400}-\x{1246e}\x{12470}-\x{12474}\x{12480}-\x{12543}\x{13000}-\x{1342e}\x{14400}-\x{14646}\x{16800}-\x{16a38}\x{16a40}-\x{16a5e}\x{16a60}-\x{16a69}\x{16a6e}\x{16a6f}\x{16ad0}-\x{16aed}\x{16af5}\x{16b00}-\x{16b2f}\x{16b37}-\x{16b45}\x{16b50}-\x{16b59}\x{16b5b}-\x{16b61}\x{16b63}-\x{16b77}\x{16b7d}-\x{16b8f}\x{16f00}-\x{16f44}\x{16f50}-\x{16f7e}\x{16f93}-\x{16f9f}\x{1b000}\x{1b001}\x{1bc00}-\x{1bc6a}\x{1bc70}-\x{1bc7c}\x{1bc80}-\x{1bc88}\x{1bc90}-\x{1bc99}\x{1bc9c}\x{1bc9f}\x{1d000}-\x{1d0f5}\x{1d100}-\x{1d126}\x{1d129}-\x{1d166}\x{1d16a}-\x{1d172}\x{1d183}\x{1d184}\x{1d18c}-\x{1d1a9}\x{1d1ae}-\x{1d1e8}\x{1d360}-\x{1d371}\x{1d400}-\x{1d454}\x{1d456}-\x{1d49c}\x{1d49e}\x{1d49f}\x{1d4a2}\x{1d4a5}\x{1d4a6}\x{1d4a9}-\x{1d4ac}\x{1d4ae}-\x{1d4b9}\x{1d4bb}\x{1d4bd}-\x{1d4c3}\x{1d4c5}-\x{1d505}\x{1d507}-\x{1d50a}\x{1d50d}-\x{1d514}\x{1d516}-\x{1d51c}\x{1d51e}-\x{1d539}\x{1d53b}-\x{1d53e}\x{1d540}-\x{1d544}\x{1d546}\x{1d54a}-\x{1d550}\x{1d552}-\x{1d6a5}\x{1d6a8}-\x{1d6da}\x{1d6dc}-\x{1d714}\x{1d716}-\x{1d74e}\x{1d750}-\x{1d788}\x{1d78a}-\x{1d7c2}\x{1d7c4}-\x{1d7cb}\x{1d800}-\x{1d9ff}\x{1da37}-\x{1da3a}\x{1da6d}-\x{1da74}\x{1da76}-\x{1da83}\x{1da85}-\x{1da8b}\x{1f110}-\x{1f12e}\x{1f130}-\x{1f169}\x{1f170}-\x{1f19a}\x{1f1e6}-\x{1f202}\x{1f210}-\x{1f23a}\x{1f240}-\x{1f248}\x{1f250}\x{1f251}\x{20000}-\x{2a6d6}\x{2a700}-\x{2b734}\x{2b740}-\x{2b81d}\x{2b820}-\x{2cea1}\x{2f800}-\x{2fa1d}\x{f0000}-\x{ffffd}\x{100000}-\x{10fffd}])|([\x{590}\x{5be}\x{5c0}\x{5c3}\x{5c6}\x{5c8}-\x{5ff}\x{7c0}-\x{7ea}\x{7f4}\x{7f5}\x{7fa}-\x{815}\x{81a}\x{824}\x{828}\x{82e}-\x{858}\x{85c}-\x{89f}\x{200f}\x{fb1d}\x{fb1f}-\x{fb28}\x{fb2a}-\x{fb4f}\x{10800}-\x{1091e}\x{10920}-\x{10a00}\x{10a04}\x{10a07}-\x{10a0b}\x{10a10}-\x{10a37}\x{10a3b}-\x{10a3e}\x{10a40}-\x{10ae4}\x{10ae7}-\x{10b38}\x{10b40}-\x{10e5f}\x{10e7f}-\x{10fff}\x{1e800}-\x{1e8cf}\x{1e8d7}-\x{1edff}\x{1ef00}-\x{1efff}\x{608}\x{60b}\x{60d}\x{61b}-\x{64a}\x{66d}-\x{66f}\x{671}-\x{6d5}\x{6e5}\x{6e6}\x{6ee}\x{6ef}\x{6fa}-\x{710}\x{712}-\x{72f}\x{74b}-\x{7a5}\x{7b1}-\x{7bf}\x{8a0}-\x{8e2}\x{fb50}-\x{fd3d}\x{fd40}-\x{fdcf}\x{fdf0}-\x{fdfc}\x{fdfe}\x{fdff}\x{fe70}-\x{fefe}\x{1ee00}-\x{1eeef}\x{1eef2}-\x{1eeff}]))/u';
173 // @codeCoverageIgnoreEnd
174 // @codingStandardsIgnoreEnd
175
176 /**
177 * Get a cached or new language object for a given language code
178 * @param string $code
179 * @return Language
180 */
181 static function factory( $code ) {
182 global $wgDummyLanguageCodes, $wgLangObjCacheSize;
183
184 if ( isset( $wgDummyLanguageCodes[$code] ) ) {
185 $code = $wgDummyLanguageCodes[$code];
186 }
187
188 // get the language object to process
189 $langObj = isset( self::$mLangObjCache[$code] )
190 ? self::$mLangObjCache[$code]
191 : self::newFromCode( $code );
192
193 // merge the language object in to get it up front in the cache
194 self::$mLangObjCache = array_merge( [ $code => $langObj ], self::$mLangObjCache );
195 // get rid of the oldest ones in case we have an overflow
196 self::$mLangObjCache = array_slice( self::$mLangObjCache, 0, $wgLangObjCacheSize, true );
197
198 return $langObj;
199 }
200
201 /**
202 * Create a language object for a given language code
203 * @param string $code
204 * @throws MWException
205 * @return Language
206 */
207 protected static function newFromCode( $code ) {
208 if ( !Language::isValidCode( $code ) ) {
209 throw new MWException( "Invalid language code \"$code\"" );
210 }
211
212 if ( !Language::isValidBuiltInCode( $code ) ) {
213 // It's not possible to customise this code with class files, so
214 // just return a Language object. This is to support uselang= hacks.
215 $lang = new Language;
216 $lang->setCode( $code );
217 return $lang;
218 }
219
220 // Check if there is a language class for the code
221 $class = self::classFromCode( $code );
222 if ( class_exists( $class ) ) {
223 $lang = new $class;
224 return $lang;
225 }
226
227 // Keep trying the fallback list until we find an existing class
228 $fallbacks = Language::getFallbacksFor( $code );
229 foreach ( $fallbacks as $fallbackCode ) {
230 if ( !Language::isValidBuiltInCode( $fallbackCode ) ) {
231 throw new MWException( "Invalid fallback '$fallbackCode' in fallback sequence for '$code'" );
232 }
233
234 $class = self::classFromCode( $fallbackCode );
235 if ( class_exists( $class ) ) {
236 $lang = new $class;
237 $lang->setCode( $code );
238 return $lang;
239 }
240 }
241
242 throw new MWException( "Invalid fallback sequence for language '$code'" );
243 }
244
245 /**
246 * Checks whether any localisation is available for that language tag
247 * in MediaWiki (MessagesXx.php exists).
248 *
249 * @param string $code Language tag (in lower case)
250 * @return bool Whether language is supported
251 * @since 1.21
252 */
253 public static function isSupportedLanguage( $code ) {
254 if ( !self::isValidBuiltInCode( $code ) ) {
255 return false;
256 }
257
258 if ( $code === 'qqq' ) {
259 return false;
260 }
261
262 return is_readable( self::getMessagesFileName( $code ) ) ||
263 is_readable( self::getJsonMessagesFileName( $code ) );
264 }
265
266 /**
267 * Returns true if a language code string is a well-formed language tag
268 * according to RFC 5646.
269 * This function only checks well-formedness; it doesn't check that
270 * language, script or variant codes actually exist in the repositories.
271 *
272 * Based on regexes by Mark Davis of the Unicode Consortium:
273 * http://unicode.org/repos/cldr/trunk/tools/java/org/unicode/cldr/util/data/langtagRegex.txt
274 *
275 * @param string $code
276 * @param bool $lenient Whether to allow '_' as separator. The default is only '-'.
277 *
278 * @return bool
279 * @since 1.21
280 */
281 public static function isWellFormedLanguageTag( $code, $lenient = false ) {
282 $alpha = '[a-z]';
283 $digit = '[0-9]';
284 $alphanum = '[a-z0-9]';
285 $x = 'x'; # private use singleton
286 $singleton = '[a-wy-z]'; # other singleton
287 $s = $lenient ? '[-_]' : '-';
288
289 $language = "$alpha{2,8}|$alpha{2,3}$s$alpha{3}";
290 $script = "$alpha{4}"; # ISO 15924
291 $region = "(?:$alpha{2}|$digit{3})"; # ISO 3166-1 alpha-2 or UN M.49
292 $variant = "(?:$alphanum{5,8}|$digit$alphanum{3})";
293 $extension = "$singleton(?:$s$alphanum{2,8})+";
294 $privateUse = "$x(?:$s$alphanum{1,8})+";
295
296 # Define certain grandfathered codes, since otherwise the regex is pretty useless.
297 # Since these are limited, this is safe even later changes to the registry --
298 # the only oddity is that it might change the type of the tag, and thus
299 # the results from the capturing groups.
300 # https://www.iana.org/assignments/language-subtag-registry
301
302 $grandfathered = "en{$s}GB{$s}oed"
303 . "|i{$s}(?:ami|bnn|default|enochian|hak|klingon|lux|mingo|navajo|pwn|tao|tay|tsu)"
304 . "|no{$s}(?:bok|nyn)"
305 . "|sgn{$s}(?:BE{$s}(?:fr|nl)|CH{$s}de)"
306 . "|zh{$s}min{$s}nan";
307
308 $variantList = "$variant(?:$s$variant)*";
309 $extensionList = "$extension(?:$s$extension)*";
310
311 $langtag = "(?:($language)"
312 . "(?:$s$script)?"
313 . "(?:$s$region)?"
314 . "(?:$s$variantList)?"
315 . "(?:$s$extensionList)?"
316 . "(?:$s$privateUse)?)";
317
318 # The final breakdown, with capturing groups for each of these components
319 # The variants, extensions, grandfathered, and private-use may have interior '-'
320
321 $root = "^(?:$langtag|$privateUse|$grandfathered)$";
322
323 return (bool)preg_match( "/$root/", strtolower( $code ) );
324 }
325
326 /**
327 * Returns true if a language code string is of a valid form, whether or
328 * not it exists. This includes codes which are used solely for
329 * customisation via the MediaWiki namespace.
330 *
331 * @param string $code
332 *
333 * @return bool
334 */
335 public static function isValidCode( $code ) {
336 static $cache = [];
337 if ( !isset( $cache[$code] ) ) {
338 // People think language codes are html safe, so enforce it.
339 // Ideally we should only allow a-zA-Z0-9-
340 // but, .+ and other chars are often used for {{int:}} hacks
341 // see bugs T39564, T39587, T38938
342 $cache[$code] =
343 // Protect against path traversal
344 strcspn( $code, ":/\\\000&<>'\"" ) === strlen( $code )
345 && !preg_match( MediaWikiTitleCodec::getTitleInvalidRegex(), $code );
346 }
347 return $cache[$code];
348 }
349
350 /**
351 * Returns true if a language code is of a valid form for the purposes of
352 * internal customisation of MediaWiki, via Messages*.php or *.json.
353 *
354 * @param string $code
355 *
356 * @throws MWException
357 * @since 1.18
358 * @return bool
359 */
360 public static function isValidBuiltInCode( $code ) {
361
362 if ( !is_string( $code ) ) {
363 if ( is_object( $code ) ) {
364 $addmsg = " of class " . get_class( $code );
365 } else {
366 $addmsg = '';
367 }
368 $type = gettype( $code );
369 throw new MWException( __METHOD__ . " must be passed a string, $type given$addmsg" );
370 }
371
372 return (bool)preg_match( '/^[a-z0-9-]{2,}$/', $code );
373 }
374
375 /**
376 * Returns true if a language code is an IETF tag known to MediaWiki.
377 *
378 * @param string $tag
379 *
380 * @since 1.21
381 * @return bool
382 */
383 public static function isKnownLanguageTag( $tag ) {
384 // Quick escape for invalid input to avoid exceptions down the line
385 // when code tries to process tags which are not valid at all.
386 if ( !self::isValidBuiltInCode( $tag ) ) {
387 return false;
388 }
389
390 if ( isset( MediaWiki\Languages\Data\Names::$names[$tag] )
391 || self::fetchLanguageName( $tag, $tag ) !== ''
392 ) {
393 return true;
394 }
395
396 return false;
397 }
398
399 /**
400 * Get the LocalisationCache instance
401 *
402 * @return LocalisationCache
403 */
404 public static function getLocalisationCache() {
405 if ( is_null( self::$dataCache ) ) {
406 global $wgLocalisationCacheConf;
407 $class = $wgLocalisationCacheConf['class'];
408 self::$dataCache = new $class( $wgLocalisationCacheConf );
409 }
410 return self::$dataCache;
411 }
412
413 function __construct() {
414 $this->mConverter = new FakeConverter( $this );
415 // Set the code to the name of the descendant
416 if ( get_class( $this ) == 'Language' ) {
417 $this->mCode = 'en';
418 } else {
419 $this->mCode = str_replace( '_', '-', strtolower( substr( get_class( $this ), 8 ) ) );
420 }
421 self::getLocalisationCache();
422 }
423
424 /**
425 * Reduce memory usage
426 */
427 function __destruct() {
428 foreach ( $this as $name => $value ) {
429 unset( $this->$name );
430 }
431 }
432
433 /**
434 * Hook which will be called if this is the content language.
435 * Descendants can use this to register hook functions or modify globals
436 */
437 function initContLang() {
438 }
439
440 /**
441 * @return array
442 * @since 1.19
443 */
444 public function getFallbackLanguages() {
445 return self::getFallbacksFor( $this->mCode );
446 }
447
448 /**
449 * Exports $wgBookstoreListEn
450 * @return array
451 */
452 public function getBookstoreList() {
453 return self::$dataCache->getItem( $this->mCode, 'bookstoreList' );
454 }
455
456 /**
457 * Returns an array of localised namespaces indexed by their numbers. If the namespace is not
458 * available in localised form, it will be included in English.
459 *
460 * @return array
461 */
462 public function getNamespaces() {
463 if ( is_null( $this->namespaceNames ) ) {
464 global $wgMetaNamespace, $wgMetaNamespaceTalk, $wgExtraNamespaces;
465
466 $this->namespaceNames = self::$dataCache->getItem( $this->mCode, 'namespaceNames' );
467 $validNamespaces = MWNamespace::getCanonicalNamespaces();
468
469 /** @suppress PhanTypeInvalidLeftOperand */
470 $this->namespaceNames = $wgExtraNamespaces + $this->namespaceNames + $validNamespaces;
471
472 $this->namespaceNames[NS_PROJECT] = $wgMetaNamespace;
473 if ( $wgMetaNamespaceTalk ) {
474 $this->namespaceNames[NS_PROJECT_TALK] = $wgMetaNamespaceTalk;
475 } else {
476 $talk = $this->namespaceNames[NS_PROJECT_TALK];
477 $this->namespaceNames[NS_PROJECT_TALK] =
478 $this->fixVariableInNamespace( $talk );
479 }
480
481 # Sometimes a language will be localised but not actually exist on this wiki.
482 foreach ( $this->namespaceNames as $key => $text ) {
483 if ( !isset( $validNamespaces[$key] ) ) {
484 unset( $this->namespaceNames[$key] );
485 }
486 }
487
488 # The above mixing may leave namespaces out of canonical order.
489 # Re-order by namespace ID number...
490 ksort( $this->namespaceNames );
491
492 Hooks::run( 'LanguageGetNamespaces', [ &$this->namespaceNames ] );
493 }
494
495 return $this->namespaceNames;
496 }
497
498 /**
499 * Arbitrarily set all of the namespace names at once. Mainly used for testing
500 * @param array $namespaces Array of namespaces (id => name)
501 */
502 public function setNamespaces( array $namespaces ) {
503 $this->namespaceNames = $namespaces;
504 $this->mNamespaceIds = null;
505 }
506
507 /**
508 * Resets all of the namespace caches. Mainly used for testing
509 */
510 public function resetNamespaces() {
511 $this->namespaceNames = null;
512 $this->mNamespaceIds = null;
513 $this->namespaceAliases = null;
514 }
515
516 /**
517 * A convenience function that returns getNamespaces() with spaces instead of underscores
518 * in values. Useful for producing output to be displayed e.g. in `<select>` forms.
519 *
520 * @return array
521 */
522 public function getFormattedNamespaces() {
523 $ns = $this->getNamespaces();
524 foreach ( $ns as $k => $v ) {
525 $ns[$k] = strtr( $v, '_', ' ' );
526 }
527 return $ns;
528 }
529
530 /**
531 * Get a namespace value by key
532 *
533 * <code>
534 * $mw_ns = $wgContLang->getNsText( NS_MEDIAWIKI );
535 * echo $mw_ns; // prints 'MediaWiki'
536 * </code>
537 *
538 * @param int $index The array key of the namespace to return
539 * @return string|bool String if the namespace value exists, otherwise false
540 */
541 public function getNsText( $index ) {
542 $ns = $this->getNamespaces();
543 return isset( $ns[$index] ) ? $ns[$index] : false;
544 }
545
546 /**
547 * A convenience function that returns the same thing as
548 * getNsText() except with '_' changed to ' ', useful for
549 * producing output.
550 *
551 * <code>
552 * $mw_ns = $wgContLang->getFormattedNsText( NS_MEDIAWIKI_TALK );
553 * echo $mw_ns; // prints 'MediaWiki talk'
554 * </code>
555 *
556 * @param int $index The array key of the namespace to return
557 * @return string Namespace name without underscores (empty string if namespace does not exist)
558 */
559 public function getFormattedNsText( $index ) {
560 $ns = $this->getNsText( $index );
561 return strtr( $ns, '_', ' ' );
562 }
563
564 /**
565 * Returns gender-dependent namespace alias if available.
566 * See https://www.mediawiki.org/wiki/Manual:$wgExtraGenderNamespaces
567 * @param int $index Namespace index
568 * @param string $gender Gender key (male, female... )
569 * @return string
570 * @since 1.18
571 */
572 public function getGenderNsText( $index, $gender ) {
573 global $wgExtraGenderNamespaces;
574
575 $ns = $wgExtraGenderNamespaces +
576 (array)self::$dataCache->getItem( $this->mCode, 'namespaceGenderAliases' );
577
578 return isset( $ns[$index][$gender] ) ? $ns[$index][$gender] : $this->getNsText( $index );
579 }
580
581 /**
582 * Whether this language uses gender-dependent namespace aliases.
583 * See https://www.mediawiki.org/wiki/Manual:$wgExtraGenderNamespaces
584 * @return bool
585 * @since 1.18
586 */
587 public function needsGenderDistinction() {
588 global $wgExtraGenderNamespaces, $wgExtraNamespaces;
589 if ( count( $wgExtraGenderNamespaces ) > 0 ) {
590 // $wgExtraGenderNamespaces overrides everything
591 return true;
592 } elseif ( isset( $wgExtraNamespaces[NS_USER] ) && isset( $wgExtraNamespaces[NS_USER_TALK] ) ) {
593 /// @todo There may be other gender namespace than NS_USER & NS_USER_TALK in the future
594 // $wgExtraNamespaces overrides any gender aliases specified in i18n files
595 return false;
596 } else {
597 // Check what is in i18n files
598 $aliases = self::$dataCache->getItem( $this->mCode, 'namespaceGenderAliases' );
599 return count( $aliases ) > 0;
600 }
601 }
602
603 /**
604 * Get a namespace key by value, case insensitive.
605 * Only matches namespace names for the current language, not the
606 * canonical ones defined in Namespace.php.
607 *
608 * @param string $text
609 * @return int|bool An integer if $text is a valid value otherwise false
610 */
611 function getLocalNsIndex( $text ) {
612 $lctext = $this->lc( $text );
613 $ids = $this->getNamespaceIds();
614 return isset( $ids[$lctext] ) ? $ids[$lctext] : false;
615 }
616
617 /**
618 * @return array
619 */
620 public function getNamespaceAliases() {
621 if ( is_null( $this->namespaceAliases ) ) {
622 $aliases = self::$dataCache->getItem( $this->mCode, 'namespaceAliases' );
623 if ( !$aliases ) {
624 $aliases = [];
625 } else {
626 foreach ( $aliases as $name => $index ) {
627 if ( $index === NS_PROJECT_TALK ) {
628 unset( $aliases[$name] );
629 $name = $this->fixVariableInNamespace( $name );
630 $aliases[$name] = $index;
631 }
632 }
633 }
634
635 global $wgExtraGenderNamespaces;
636 $genders = $wgExtraGenderNamespaces +
637 (array)self::$dataCache->getItem( $this->mCode, 'namespaceGenderAliases' );
638 foreach ( $genders as $index => $forms ) {
639 foreach ( $forms as $alias ) {
640 $aliases[$alias] = $index;
641 }
642 }
643
644 # Also add converted namespace names as aliases, to avoid confusion.
645 $convertedNames = [];
646 foreach ( $this->getVariants() as $variant ) {
647 if ( $variant === $this->mCode ) {
648 continue;
649 }
650 foreach ( $this->getNamespaces() as $ns => $_ ) {
651 $convertedNames[$this->getConverter()->convertNamespace( $ns, $variant )] = $ns;
652 }
653 }
654
655 $this->namespaceAliases = $aliases + $convertedNames;
656 }
657
658 return $this->namespaceAliases;
659 }
660
661 /**
662 * @return array
663 */
664 public function getNamespaceIds() {
665 if ( is_null( $this->mNamespaceIds ) ) {
666 global $wgNamespaceAliases;
667 # Put namespace names and aliases into a hashtable.
668 # If this is too slow, then we should arrange it so that it is done
669 # before caching. The catch is that at pre-cache time, the above
670 # class-specific fixup hasn't been done.
671 $this->mNamespaceIds = [];
672 foreach ( $this->getNamespaces() as $index => $name ) {
673 $this->mNamespaceIds[$this->lc( $name )] = $index;
674 }
675 foreach ( $this->getNamespaceAliases() as $name => $index ) {
676 $this->mNamespaceIds[$this->lc( $name )] = $index;
677 }
678 if ( $wgNamespaceAliases ) {
679 foreach ( $wgNamespaceAliases as $name => $index ) {
680 $this->mNamespaceIds[$this->lc( $name )] = $index;
681 }
682 }
683 }
684 return $this->mNamespaceIds;
685 }
686
687 /**
688 * Get a namespace key by value, case insensitive. Canonical namespace
689 * names override custom ones defined for the current language.
690 *
691 * @param string $text
692 * @return int|bool An integer if $text is a valid value otherwise false
693 */
694 public function getNsIndex( $text ) {
695 $lctext = $this->lc( $text );
696 $ns = MWNamespace::getCanonicalIndex( $lctext );
697 if ( $ns !== null ) {
698 return $ns;
699 }
700 $ids = $this->getNamespaceIds();
701 return isset( $ids[$lctext] ) ? $ids[$lctext] : false;
702 }
703
704 /**
705 * short names for language variants used for language conversion links.
706 *
707 * @param string $code
708 * @param bool $usemsg Use the "variantname-xyz" message if it exists
709 * @return string
710 */
711 public function getVariantname( $code, $usemsg = true ) {
712 $msg = "variantname-$code";
713 if ( $usemsg && wfMessage( $msg )->exists() ) {
714 return $this->getMessageFromDB( $msg );
715 }
716 $name = self::fetchLanguageName( $code );
717 if ( $name ) {
718 return $name; # if it's defined as a language name, show that
719 } else {
720 # otherwise, output the language code
721 return $code;
722 }
723 }
724
725 /**
726 * @return array
727 */
728 public function getDatePreferences() {
729 return self::$dataCache->getItem( $this->mCode, 'datePreferences' );
730 }
731
732 /**
733 * @return array
734 */
735 function getDateFormats() {
736 return self::$dataCache->getItem( $this->mCode, 'dateFormats' );
737 }
738
739 /**
740 * @return array|string
741 */
742 public function getDefaultDateFormat() {
743 $df = self::$dataCache->getItem( $this->mCode, 'defaultDateFormat' );
744 if ( $df === 'dmy or mdy' ) {
745 global $wgAmericanDates;
746 return $wgAmericanDates ? 'mdy' : 'dmy';
747 } else {
748 return $df;
749 }
750 }
751
752 /**
753 * @return array
754 */
755 public function getDatePreferenceMigrationMap() {
756 return self::$dataCache->getItem( $this->mCode, 'datePreferenceMigrationMap' );
757 }
758
759 /**
760 * @param string $image
761 * @return array|null
762 */
763 function getImageFile( $image ) {
764 return self::$dataCache->getSubitem( $this->mCode, 'imageFiles', $image );
765 }
766
767 /**
768 * @return array
769 * @since 1.24
770 */
771 public function getImageFiles() {
772 return self::$dataCache->getItem( $this->mCode, 'imageFiles' );
773 }
774
775 /**
776 * @return array
777 */
778 public function getExtraUserToggles() {
779 return (array)self::$dataCache->getItem( $this->mCode, 'extraUserToggles' );
780 }
781
782 /**
783 * @param string $tog
784 * @return string
785 */
786 function getUserToggle( $tog ) {
787 return $this->getMessageFromDB( "tog-$tog" );
788 }
789
790 /**
791 * Get an array of language names, indexed by code.
792 * @param null|string $inLanguage Code of language in which to return the names
793 * Use null for autonyms (native names)
794 * @param string $include One of:
795 * 'all' all available languages
796 * 'mw' only if the language is defined in MediaWiki or wgExtraLanguageNames (default)
797 * 'mwfile' only if the language is in 'mw' *and* has a message file
798 * @return array Language code => language name
799 * @since 1.20
800 */
801 public static function fetchLanguageNames( $inLanguage = null, $include = 'mw' ) {
802 $cacheKey = $inLanguage === null ? 'null' : $inLanguage;
803 $cacheKey .= ":$include";
804 if ( self::$languageNameCache === null ) {
805 self::$languageNameCache = new HashBagOStuff( [ 'maxKeys' => 20 ] );
806 }
807
808 $ret = self::$languageNameCache->get( $cacheKey );
809 if ( !$ret ) {
810 $ret = self::fetchLanguageNamesUncached( $inLanguage, $include );
811 self::$languageNameCache->set( $cacheKey, $ret );
812 }
813 return $ret;
814 }
815
816 /**
817 * Uncached helper for fetchLanguageNames
818 * @param null|string $inLanguage Code of language in which to return the names
819 * Use null for autonyms (native names)
820 * @param string $include One of:
821 * 'all' all available languages
822 * 'mw' only if the language is defined in MediaWiki or wgExtraLanguageNames (default)
823 * 'mwfile' only if the language is in 'mw' *and* has a message file
824 * @return array Language code => language name
825 */
826 private static function fetchLanguageNamesUncached( $inLanguage = null, $include = 'mw' ) {
827 global $wgExtraLanguageNames;
828
829 // If passed an invalid language code to use, fallback to en
830 if ( $inLanguage !== null && !Language::isValidCode( $inLanguage ) ) {
831 $inLanguage = 'en';
832 }
833
834 $names = [];
835
836 if ( $inLanguage ) {
837 # TODO: also include when $inLanguage is null, when this code is more efficient
838 Hooks::run( 'LanguageGetTranslatedLanguageNames', [ &$names, $inLanguage ] );
839 }
840
841 $mwNames = $wgExtraLanguageNames + MediaWiki\Languages\Data\Names::$names;
842 foreach ( $mwNames as $mwCode => $mwName ) {
843 # - Prefer own MediaWiki native name when not using the hook
844 # - For other names just add if not added through the hook
845 if ( $mwCode === $inLanguage || !isset( $names[$mwCode] ) ) {
846 $names[$mwCode] = $mwName;
847 }
848 }
849
850 if ( $include === 'all' ) {
851 ksort( $names );
852 return $names;
853 }
854
855 $returnMw = [];
856 $coreCodes = array_keys( $mwNames );
857 foreach ( $coreCodes as $coreCode ) {
858 $returnMw[$coreCode] = $names[$coreCode];
859 }
860
861 if ( $include === 'mwfile' ) {
862 $namesMwFile = [];
863 # We do this using a foreach over the codes instead of a directory
864 # loop so that messages files in extensions will work correctly.
865 foreach ( $returnMw as $code => $value ) {
866 if ( is_readable( self::getMessagesFileName( $code ) )
867 || is_readable( self::getJsonMessagesFileName( $code ) )
868 ) {
869 $namesMwFile[$code] = $names[$code];
870 }
871 }
872
873 ksort( $namesMwFile );
874 return $namesMwFile;
875 }
876
877 ksort( $returnMw );
878 # 'mw' option; default if it's not one of the other two options (all/mwfile)
879 return $returnMw;
880 }
881
882 /**
883 * @param string $code The code of the language for which to get the name
884 * @param null|string $inLanguage Code of language in which to return the name (null for autonyms)
885 * @param string $include 'all', 'mw' or 'mwfile'; see fetchLanguageNames()
886 * @return string Language name or empty
887 * @since 1.20
888 */
889 public static function fetchLanguageName( $code, $inLanguage = null, $include = 'all' ) {
890 $code = strtolower( $code );
891 $array = self::fetchLanguageNames( $inLanguage, $include );
892 return !array_key_exists( $code, $array ) ? '' : $array[$code];
893 }
894
895 /**
896 * Get a message from the MediaWiki namespace.
897 *
898 * @param string $msg Message name
899 * @return string
900 */
901 public function getMessageFromDB( $msg ) {
902 return $this->msg( $msg )->text();
903 }
904
905 /**
906 * Get message object in this language. Only for use inside this class.
907 *
908 * @param string $msg Message name
909 * @return Message
910 */
911 protected function msg( $msg ) {
912 return wfMessage( $msg )->inLanguage( $this );
913 }
914
915 /**
916 * @param string $key
917 * @return string
918 */
919 public function getMonthName( $key ) {
920 return $this->getMessageFromDB( self::$mMonthMsgs[$key - 1] );
921 }
922
923 /**
924 * @return array
925 */
926 public function getMonthNamesArray() {
927 $monthNames = [ '' ];
928 for ( $i = 1; $i < 13; $i++ ) {
929 $monthNames[] = $this->getMonthName( $i );
930 }
931 return $monthNames;
932 }
933
934 /**
935 * @param string $key
936 * @return string
937 */
938 public function getMonthNameGen( $key ) {
939 return $this->getMessageFromDB( self::$mMonthGenMsgs[$key - 1] );
940 }
941
942 /**
943 * @param string $key
944 * @return string
945 */
946 public function getMonthAbbreviation( $key ) {
947 return $this->getMessageFromDB( self::$mMonthAbbrevMsgs[$key - 1] );
948 }
949
950 /**
951 * @return array
952 */
953 public function getMonthAbbreviationsArray() {
954 $monthNames = [ '' ];
955 for ( $i = 1; $i < 13; $i++ ) {
956 $monthNames[] = $this->getMonthAbbreviation( $i );
957 }
958 return $monthNames;
959 }
960
961 /**
962 * @param string $key
963 * @return string
964 */
965 public function getWeekdayName( $key ) {
966 return $this->getMessageFromDB( self::$mWeekdayMsgs[$key - 1] );
967 }
968
969 /**
970 * @param string $key
971 * @return string
972 */
973 function getWeekdayAbbreviation( $key ) {
974 return $this->getMessageFromDB( self::$mWeekdayAbbrevMsgs[$key - 1] );
975 }
976
977 /**
978 * @param string $key
979 * @return string
980 */
981 function getIranianCalendarMonthName( $key ) {
982 return $this->getMessageFromDB( self::$mIranianCalendarMonthMsgs[$key - 1] );
983 }
984
985 /**
986 * @param string $key
987 * @return string
988 */
989 function getHebrewCalendarMonthName( $key ) {
990 return $this->getMessageFromDB( self::$mHebrewCalendarMonthMsgs[$key - 1] );
991 }
992
993 /**
994 * @param string $key
995 * @return string
996 */
997 function getHebrewCalendarMonthNameGen( $key ) {
998 return $this->getMessageFromDB( self::$mHebrewCalendarMonthGenMsgs[$key - 1] );
999 }
1000
1001 /**
1002 * @param string $key
1003 * @return string
1004 */
1005 function getHijriCalendarMonthName( $key ) {
1006 return $this->getMessageFromDB( self::$mHijriCalendarMonthMsgs[$key - 1] );
1007 }
1008
1009 /**
1010 * Pass through result from $dateTimeObj->format()
1011 * @param DateTime|bool|null &$dateTimeObj
1012 * @param string $ts
1013 * @param DateTimeZone|bool|null $zone
1014 * @param string $code
1015 * @return string
1016 */
1017 private static function dateTimeObjFormat( &$dateTimeObj, $ts, $zone, $code ) {
1018 if ( !$dateTimeObj ) {
1019 $dateTimeObj = DateTime::createFromFormat(
1020 'YmdHis', $ts, $zone ?: new DateTimeZone( 'UTC' )
1021 );
1022 }
1023 return $dateTimeObj->format( $code );
1024 }
1025
1026 /**
1027 * This is a workalike of PHP's date() function, but with better
1028 * internationalisation, a reduced set of format characters, and a better
1029 * escaping format.
1030 *
1031 * Supported format characters are dDjlNwzWFmMntLoYyaAgGhHiscrUeIOPTZ. See
1032 * the PHP manual for definitions. There are a number of extensions, which
1033 * start with "x":
1034 *
1035 * xn Do not translate digits of the next numeric format character
1036 * xN Toggle raw digit (xn) flag, stays set until explicitly unset
1037 * xr Use roman numerals for the next numeric format character
1038 * xh Use hebrew numerals for the next numeric format character
1039 * xx Literal x
1040 * xg Genitive month name
1041 *
1042 * xij j (day number) in Iranian calendar
1043 * xiF F (month name) in Iranian calendar
1044 * xin n (month number) in Iranian calendar
1045 * xiy y (two digit year) in Iranian calendar
1046 * xiY Y (full year) in Iranian calendar
1047 * xit t (days in month) in Iranian calendar
1048 * xiz z (day of the year) in Iranian calendar
1049 *
1050 * xjj j (day number) in Hebrew calendar
1051 * xjF F (month name) in Hebrew calendar
1052 * xjt t (days in month) in Hebrew calendar
1053 * xjx xg (genitive month name) in Hebrew calendar
1054 * xjn n (month number) in Hebrew calendar
1055 * xjY Y (full year) in Hebrew calendar
1056 *
1057 * xmj j (day number) in Hijri calendar
1058 * xmF F (month name) in Hijri calendar
1059 * xmn n (month number) in Hijri calendar
1060 * xmY Y (full year) in Hijri calendar
1061 *
1062 * xkY Y (full year) in Thai solar calendar. Months and days are
1063 * identical to the Gregorian calendar
1064 * xoY Y (full year) in Minguo calendar or Juche year.
1065 * Months and days are identical to the
1066 * Gregorian calendar
1067 * xtY Y (full year) in Japanese nengo. Months and days are
1068 * identical to the Gregorian calendar
1069 *
1070 * Characters enclosed in double quotes will be considered literal (with
1071 * the quotes themselves removed). Unmatched quotes will be considered
1072 * literal quotes. Example:
1073 *
1074 * "The month is" F => The month is January
1075 * i's" => 20'11"
1076 *
1077 * Backslash escaping is also supported.
1078 *
1079 * Input timestamp is assumed to be pre-normalized to the desired local
1080 * time zone, if any. Note that the format characters crUeIOPTZ will assume
1081 * $ts is UTC if $zone is not given.
1082 *
1083 * @param string $format
1084 * @param string $ts 14-character timestamp
1085 * YYYYMMDDHHMMSS
1086 * 01234567890123
1087 * @param DateTimeZone $zone Timezone of $ts
1088 * @param[out] int $ttl The amount of time (in seconds) the output may be cached for.
1089 * Only makes sense if $ts is the current time.
1090 * @todo handling of "o" format character for Iranian, Hebrew, Hijri & Thai?
1091 *
1092 * @throws MWException
1093 * @return string
1094 */
1095 public function sprintfDate( $format, $ts, DateTimeZone $zone = null, &$ttl = 'unused' ) {
1096 $s = '';
1097 $raw = false;
1098 $roman = false;
1099 $hebrewNum = false;
1100 $dateTimeObj = false;
1101 $rawToggle = false;
1102 $iranian = false;
1103 $hebrew = false;
1104 $hijri = false;
1105 $thai = false;
1106 $minguo = false;
1107 $tenno = false;
1108
1109 $usedSecond = false;
1110 $usedMinute = false;
1111 $usedHour = false;
1112 $usedAMPM = false;
1113 $usedDay = false;
1114 $usedWeek = false;
1115 $usedMonth = false;
1116 $usedYear = false;
1117 $usedISOYear = false;
1118 $usedIsLeapYear = false;
1119
1120 $usedHebrewMonth = false;
1121 $usedIranianMonth = false;
1122 $usedHijriMonth = false;
1123 $usedHebrewYear = false;
1124 $usedIranianYear = false;
1125 $usedHijriYear = false;
1126 $usedTennoYear = false;
1127
1128 if ( strlen( $ts ) !== 14 ) {
1129 throw new MWException( __METHOD__ . ": The timestamp $ts should have 14 characters" );
1130 }
1131
1132 if ( !ctype_digit( $ts ) ) {
1133 throw new MWException( __METHOD__ . ": The timestamp $ts should be a number" );
1134 }
1135
1136 $formatLength = strlen( $format );
1137 for ( $p = 0; $p < $formatLength; $p++ ) {
1138 $num = false;
1139 $code = $format[$p];
1140 if ( $code == 'x' && $p < $formatLength - 1 ) {
1141 $code .= $format[++$p];
1142 }
1143
1144 if ( ( $code === 'xi'
1145 || $code === 'xj'
1146 || $code === 'xk'
1147 || $code === 'xm'
1148 || $code === 'xo'
1149 || $code === 'xt' )
1150 && $p < $formatLength - 1 ) {
1151 $code .= $format[++$p];
1152 }
1153
1154 switch ( $code ) {
1155 case 'xx':
1156 $s .= 'x';
1157 break;
1158 case 'xn':
1159 $raw = true;
1160 break;
1161 case 'xN':
1162 $rawToggle = !$rawToggle;
1163 break;
1164 case 'xr':
1165 $roman = true;
1166 break;
1167 case 'xh':
1168 $hebrewNum = true;
1169 break;
1170 case 'xg':
1171 $usedMonth = true;
1172 $s .= $this->getMonthNameGen( substr( $ts, 4, 2 ) );
1173 break;
1174 case 'xjx':
1175 $usedHebrewMonth = true;
1176 if ( !$hebrew ) {
1177 $hebrew = self::tsToHebrew( $ts );
1178 }
1179 $s .= $this->getHebrewCalendarMonthNameGen( $hebrew[1] );
1180 break;
1181 case 'd':
1182 $usedDay = true;
1183 $num = substr( $ts, 6, 2 );
1184 break;
1185 case 'D':
1186 $usedDay = true;
1187 $s .= $this->getWeekdayAbbreviation(
1188 Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, 'w' ) + 1
1189 );
1190 break;
1191 case 'j':
1192 $usedDay = true;
1193 $num = intval( substr( $ts, 6, 2 ) );
1194 break;
1195 case 'xij':
1196 $usedDay = true;
1197 if ( !$iranian ) {
1198 $iranian = self::tsToIranian( $ts );
1199 }
1200 $num = $iranian[2];
1201 break;
1202 case 'xmj':
1203 $usedDay = true;
1204 if ( !$hijri ) {
1205 $hijri = self::tsToHijri( $ts );
1206 }
1207 $num = $hijri[2];
1208 break;
1209 case 'xjj':
1210 $usedDay = true;
1211 if ( !$hebrew ) {
1212 $hebrew = self::tsToHebrew( $ts );
1213 }
1214 $num = $hebrew[2];
1215 break;
1216 case 'l':
1217 $usedDay = true;
1218 $s .= $this->getWeekdayName(
1219 Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, 'w' ) + 1
1220 );
1221 break;
1222 case 'F':
1223 $usedMonth = true;
1224 $s .= $this->getMonthName( substr( $ts, 4, 2 ) );
1225 break;
1226 case 'xiF':
1227 $usedIranianMonth = true;
1228 if ( !$iranian ) {
1229 $iranian = self::tsToIranian( $ts );
1230 }
1231 $s .= $this->getIranianCalendarMonthName( $iranian[1] );
1232 break;
1233 case 'xmF':
1234 $usedHijriMonth = true;
1235 if ( !$hijri ) {
1236 $hijri = self::tsToHijri( $ts );
1237 }
1238 $s .= $this->getHijriCalendarMonthName( $hijri[1] );
1239 break;
1240 case 'xjF':
1241 $usedHebrewMonth = true;
1242 if ( !$hebrew ) {
1243 $hebrew = self::tsToHebrew( $ts );
1244 }
1245 $s .= $this->getHebrewCalendarMonthName( $hebrew[1] );
1246 break;
1247 case 'm':
1248 $usedMonth = true;
1249 $num = substr( $ts, 4, 2 );
1250 break;
1251 case 'M':
1252 $usedMonth = true;
1253 $s .= $this->getMonthAbbreviation( substr( $ts, 4, 2 ) );
1254 break;
1255 case 'n':
1256 $usedMonth = true;
1257 $num = intval( substr( $ts, 4, 2 ) );
1258 break;
1259 case 'xin':
1260 $usedIranianMonth = true;
1261 if ( !$iranian ) {
1262 $iranian = self::tsToIranian( $ts );
1263 }
1264 $num = $iranian[1];
1265 break;
1266 case 'xmn':
1267 $usedHijriMonth = true;
1268 if ( !$hijri ) {
1269 $hijri = self::tsToHijri( $ts );
1270 }
1271 $num = $hijri[1];
1272 break;
1273 case 'xjn':
1274 $usedHebrewMonth = true;
1275 if ( !$hebrew ) {
1276 $hebrew = self::tsToHebrew( $ts );
1277 }
1278 $num = $hebrew[1];
1279 break;
1280 case 'xjt':
1281 $usedHebrewMonth = true;
1282 if ( !$hebrew ) {
1283 $hebrew = self::tsToHebrew( $ts );
1284 }
1285 $num = $hebrew[3];
1286 break;
1287 case 'Y':
1288 $usedYear = true;
1289 $num = substr( $ts, 0, 4 );
1290 break;
1291 case 'xiY':
1292 $usedIranianYear = true;
1293 if ( !$iranian ) {
1294 $iranian = self::tsToIranian( $ts );
1295 }
1296 $num = $iranian[0];
1297 break;
1298 case 'xmY':
1299 $usedHijriYear = true;
1300 if ( !$hijri ) {
1301 $hijri = self::tsToHijri( $ts );
1302 }
1303 $num = $hijri[0];
1304 break;
1305 case 'xjY':
1306 $usedHebrewYear = true;
1307 if ( !$hebrew ) {
1308 $hebrew = self::tsToHebrew( $ts );
1309 }
1310 $num = $hebrew[0];
1311 break;
1312 case 'xkY':
1313 $usedYear = true;
1314 if ( !$thai ) {
1315 $thai = self::tsToYear( $ts, 'thai' );
1316 }
1317 $num = $thai[0];
1318 break;
1319 case 'xoY':
1320 $usedYear = true;
1321 if ( !$minguo ) {
1322 $minguo = self::tsToYear( $ts, 'minguo' );
1323 }
1324 $num = $minguo[0];
1325 break;
1326 case 'xtY':
1327 $usedTennoYear = true;
1328 if ( !$tenno ) {
1329 $tenno = self::tsToYear( $ts, 'tenno' );
1330 }
1331 $num = $tenno[0];
1332 break;
1333 case 'y':
1334 $usedYear = true;
1335 $num = substr( $ts, 2, 2 );
1336 break;
1337 case 'xiy':
1338 $usedIranianYear = true;
1339 if ( !$iranian ) {
1340 $iranian = self::tsToIranian( $ts );
1341 }
1342 $num = substr( $iranian[0], -2 );
1343 break;
1344 case 'xit':
1345 $usedIranianYear = true;
1346 if ( !$iranian ) {
1347 $iranian = self::tsToIranian( $ts );
1348 }
1349 $num = self::$IRANIAN_DAYS[$iranian[1] - 1];
1350 break;
1351 case 'xiz':
1352 $usedIranianYear = true;
1353 if ( !$iranian ) {
1354 $iranian = self::tsToIranian( $ts );
1355 }
1356 $num = $iranian[3];
1357 break;
1358 case 'a':
1359 $usedAMPM = true;
1360 $s .= intval( substr( $ts, 8, 2 ) ) < 12 ? 'am' : 'pm';
1361 break;
1362 case 'A':
1363 $usedAMPM = true;
1364 $s .= intval( substr( $ts, 8, 2 ) ) < 12 ? 'AM' : 'PM';
1365 break;
1366 case 'g':
1367 $usedHour = true;
1368 $h = substr( $ts, 8, 2 );
1369 $num = $h % 12 ? $h % 12 : 12;
1370 break;
1371 case 'G':
1372 $usedHour = true;
1373 $num = intval( substr( $ts, 8, 2 ) );
1374 break;
1375 case 'h':
1376 $usedHour = true;
1377 $h = substr( $ts, 8, 2 );
1378 $num = sprintf( '%02d', $h % 12 ? $h % 12 : 12 );
1379 break;
1380 case 'H':
1381 $usedHour = true;
1382 $num = substr( $ts, 8, 2 );
1383 break;
1384 case 'i':
1385 $usedMinute = true;
1386 $num = substr( $ts, 10, 2 );
1387 break;
1388 case 's':
1389 $usedSecond = true;
1390 $num = substr( $ts, 12, 2 );
1391 break;
1392 case 'c':
1393 case 'r':
1394 $usedSecond = true;
1395 // fall through
1396 case 'e':
1397 case 'O':
1398 case 'P':
1399 case 'T':
1400 $s .= Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, $code );
1401 break;
1402 case 'w':
1403 case 'N':
1404 case 'z':
1405 $usedDay = true;
1406 $num = Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, $code );
1407 break;
1408 case 'W':
1409 $usedWeek = true;
1410 $num = Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, $code );
1411 break;
1412 case 't':
1413 $usedMonth = true;
1414 $num = Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, $code );
1415 break;
1416 case 'L':
1417 $usedIsLeapYear = true;
1418 $num = Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, $code );
1419 break;
1420 case 'o':
1421 $usedISOYear = true;
1422 $num = Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, $code );
1423 break;
1424 case 'U':
1425 $usedSecond = true;
1426 // fall through
1427 case 'I':
1428 case 'Z':
1429 $num = Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, $code );
1430 break;
1431 case '\\':
1432 # Backslash escaping
1433 if ( $p < $formatLength - 1 ) {
1434 $s .= $format[++$p];
1435 } else {
1436 $s .= '\\';
1437 }
1438 break;
1439 case '"':
1440 # Quoted literal
1441 if ( $p < $formatLength - 1 ) {
1442 $endQuote = strpos( $format, '"', $p + 1 );
1443 if ( $endQuote === false ) {
1444 # No terminating quote, assume literal "
1445 $s .= '"';
1446 } else {
1447 $s .= substr( $format, $p + 1, $endQuote - $p - 1 );
1448 $p = $endQuote;
1449 }
1450 } else {
1451 # Quote at end of string, assume literal "
1452 $s .= '"';
1453 }
1454 break;
1455 default:
1456 $s .= $format[$p];
1457 }
1458 if ( $num !== false ) {
1459 if ( $rawToggle || $raw ) {
1460 $s .= $num;
1461 $raw = false;
1462 } elseif ( $roman ) {
1463 $s .= Language::romanNumeral( $num );
1464 $roman = false;
1465 } elseif ( $hebrewNum ) {
1466 $s .= self::hebrewNumeral( $num );
1467 $hebrewNum = false;
1468 } else {
1469 $s .= $this->formatNum( $num, true );
1470 }
1471 }
1472 }
1473
1474 if ( $ttl === 'unused' ) {
1475 // No need to calculate the TTL, the caller wont use it anyway.
1476 } elseif ( $usedSecond ) {
1477 $ttl = 1;
1478 } elseif ( $usedMinute ) {
1479 $ttl = 60 - substr( $ts, 12, 2 );
1480 } elseif ( $usedHour ) {
1481 $ttl = 3600 - substr( $ts, 10, 2 ) * 60 - substr( $ts, 12, 2 );
1482 } elseif ( $usedAMPM ) {
1483 $ttl = 43200 - ( substr( $ts, 8, 2 ) % 12 ) * 3600 -
1484 substr( $ts, 10, 2 ) * 60 - substr( $ts, 12, 2 );
1485 } elseif (
1486 $usedDay ||
1487 $usedHebrewMonth ||
1488 $usedIranianMonth ||
1489 $usedHijriMonth ||
1490 $usedHebrewYear ||
1491 $usedIranianYear ||
1492 $usedHijriYear ||
1493 $usedTennoYear
1494 ) {
1495 // @todo Someone who understands the non-Gregorian calendars
1496 // should write proper logic for them so that they don't need purged every day.
1497 $ttl = 86400 - substr( $ts, 8, 2 ) * 3600 -
1498 substr( $ts, 10, 2 ) * 60 - substr( $ts, 12, 2 );
1499 } else {
1500 $possibleTtls = [];
1501 $timeRemainingInDay = 86400 - substr( $ts, 8, 2 ) * 3600 -
1502 substr( $ts, 10, 2 ) * 60 - substr( $ts, 12, 2 );
1503 if ( $usedWeek ) {
1504 $possibleTtls[] =
1505 ( 7 - Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, 'N' ) ) * 86400 +
1506 $timeRemainingInDay;
1507 } elseif ( $usedISOYear ) {
1508 // December 28th falls on the last ISO week of the year, every year.
1509 // The last ISO week of a year can be 52 or 53.
1510 $lastWeekOfISOYear = DateTime::createFromFormat(
1511 'Ymd',
1512 substr( $ts, 0, 4 ) . '1228',
1513 $zone ?: new DateTimeZone( 'UTC' )
1514 )->format( 'W' );
1515 $currentISOWeek = Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, 'W' );
1516 $weeksRemaining = $lastWeekOfISOYear - $currentISOWeek;
1517 $timeRemainingInWeek =
1518 ( 7 - Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, 'N' ) ) * 86400
1519 + $timeRemainingInDay;
1520 $possibleTtls[] = $weeksRemaining * 604800 + $timeRemainingInWeek;
1521 }
1522
1523 if ( $usedMonth ) {
1524 $possibleTtls[] =
1525 ( Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, 't' ) -
1526 substr( $ts, 6, 2 ) ) * 86400
1527 + $timeRemainingInDay;
1528 } elseif ( $usedYear ) {
1529 $possibleTtls[] =
1530 ( Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, 'L' ) + 364 -
1531 Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, 'z' ) ) * 86400
1532 + $timeRemainingInDay;
1533 } elseif ( $usedIsLeapYear ) {
1534 $year = substr( $ts, 0, 4 );
1535 $timeRemainingInYear =
1536 ( Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, 'L' ) + 364 -
1537 Language::dateTimeObjFormat( $dateTimeObj, $ts, $zone, 'z' ) ) * 86400
1538 + $timeRemainingInDay;
1539 $mod = $year % 4;
1540 if ( $mod || ( !( $year % 100 ) && $year % 400 ) ) {
1541 // this isn't a leap year. see when the next one starts
1542 $nextCandidate = $year - $mod + 4;
1543 if ( $nextCandidate % 100 || !( $nextCandidate % 400 ) ) {
1544 $possibleTtls[] = ( $nextCandidate - $year - 1 ) * 365 * 86400 +
1545 $timeRemainingInYear;
1546 } else {
1547 $possibleTtls[] = ( $nextCandidate - $year + 3 ) * 365 * 86400 +
1548 $timeRemainingInYear;
1549 }
1550 } else {
1551 // this is a leap year, so the next year isn't
1552 $possibleTtls[] = $timeRemainingInYear;
1553 }
1554 }
1555
1556 if ( $possibleTtls ) {
1557 $ttl = min( $possibleTtls );
1558 }
1559 }
1560
1561 return $s;
1562 }
1563
1564 private static $GREG_DAYS = [ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ];
1565 private static $IRANIAN_DAYS = [ 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29 ];
1566
1567 /**
1568 * Algorithm by Roozbeh Pournader and Mohammad Toossi to convert
1569 * Gregorian dates to Iranian dates. Originally written in C, it
1570 * is released under the terms of GNU Lesser General Public
1571 * License. Conversion to PHP was performed by Niklas Laxström.
1572 *
1573 * Link: http://www.farsiweb.info/jalali/jalali.c
1574 *
1575 * @param string $ts
1576 *
1577 * @return int[]
1578 */
1579 private static function tsToIranian( $ts ) {
1580 $gy = substr( $ts, 0, 4 ) -1600;
1581 $gm = substr( $ts, 4, 2 ) -1;
1582 $gd = substr( $ts, 6, 2 ) -1;
1583
1584 # Days passed from the beginning (including leap years)
1585 $gDayNo = 365 * $gy
1586 + floor( ( $gy + 3 ) / 4 )
1587 - floor( ( $gy + 99 ) / 100 )
1588 + floor( ( $gy + 399 ) / 400 );
1589
1590 // Add days of the past months of this year
1591 for ( $i = 0; $i < $gm; $i++ ) {
1592 $gDayNo += self::$GREG_DAYS[$i];
1593 }
1594
1595 // Leap years
1596 if ( $gm > 1 && ( ( $gy % 4 === 0 && $gy % 100 !== 0 || ( $gy % 400 == 0 ) ) ) ) {
1597 $gDayNo++;
1598 }
1599
1600 // Days passed in current month
1601 $gDayNo += (int)$gd;
1602
1603 $jDayNo = $gDayNo - 79;
1604
1605 $jNp = floor( $jDayNo / 12053 );
1606 $jDayNo %= 12053;
1607
1608 $jy = 979 + 33 * $jNp + 4 * floor( $jDayNo / 1461 );
1609 $jDayNo %= 1461;
1610
1611 if ( $jDayNo >= 366 ) {
1612 $jy += floor( ( $jDayNo - 1 ) / 365 );
1613 $jDayNo = floor( ( $jDayNo - 1 ) % 365 );
1614 }
1615
1616 $jz = $jDayNo;
1617
1618 for ( $i = 0; $i < 11 && $jDayNo >= self::$IRANIAN_DAYS[$i]; $i++ ) {
1619 $jDayNo -= self::$IRANIAN_DAYS[$i];
1620 }
1621
1622 $jm = $i + 1;
1623 $jd = $jDayNo + 1;
1624
1625 return [ $jy, $jm, $jd, $jz ];
1626 }
1627
1628 /**
1629 * Converting Gregorian dates to Hijri dates.
1630 *
1631 * Based on a PHP-Nuke block by Sharjeel which is released under GNU/GPL license
1632 *
1633 * @see https://phpnuke.org/modules.php?name=News&file=article&sid=8234&mode=thread&order=0&thold=0
1634 *
1635 * @param string $ts
1636 *
1637 * @return int[]
1638 */
1639 private static function tsToHijri( $ts ) {
1640 $year = substr( $ts, 0, 4 );
1641 $month = substr( $ts, 4, 2 );
1642 $day = substr( $ts, 6, 2 );
1643
1644 $zyr = $year;
1645 $zd = $day;
1646 $zm = $month;
1647 $zy = $zyr;
1648
1649 if (
1650 ( $zy > 1582 ) || ( ( $zy == 1582 ) && ( $zm > 10 ) ) ||
1651 ( ( $zy == 1582 ) && ( $zm == 10 ) && ( $zd > 14 ) )
1652 ) {
1653 $zjd = (int)( ( 1461 * ( $zy + 4800 + (int)( ( $zm - 14 ) / 12 ) ) ) / 4 ) +
1654 (int)( ( 367 * ( $zm - 2 - 12 * ( (int)( ( $zm - 14 ) / 12 ) ) ) ) / 12 ) -
1655 (int)( ( 3 * (int)( ( ( $zy + 4900 + (int)( ( $zm - 14 ) / 12 ) ) / 100 ) ) ) / 4 ) +
1656 $zd - 32075;
1657 } else {
1658 $zjd = 367 * $zy - (int)( ( 7 * ( $zy + 5001 + (int)( ( $zm - 9 ) / 7 ) ) ) / 4 ) +
1659 (int)( ( 275 * $zm ) / 9 ) + $zd + 1729777;
1660 }
1661
1662 $zl = $zjd -1948440 + 10632;
1663 $zn = (int)( ( $zl - 1 ) / 10631 );
1664 $zl = $zl - 10631 * $zn + 354;
1665 $zj = ( (int)( ( 10985 - $zl ) / 5316 ) ) * ( (int)( ( 50 * $zl ) / 17719 ) ) +
1666 ( (int)( $zl / 5670 ) ) * ( (int)( ( 43 * $zl ) / 15238 ) );
1667 $zl = $zl - ( (int)( ( 30 - $zj ) / 15 ) ) * ( (int)( ( 17719 * $zj ) / 50 ) ) -
1668 ( (int)( $zj / 16 ) ) * ( (int)( ( 15238 * $zj ) / 43 ) ) + 29;
1669 $zm = (int)( ( 24 * $zl ) / 709 );
1670 $zd = $zl - (int)( ( 709 * $zm ) / 24 );
1671 $zy = 30 * $zn + $zj - 30;
1672
1673 return [ $zy, $zm, $zd ];
1674 }
1675
1676 /**
1677 * Converting Gregorian dates to Hebrew dates.
1678 *
1679 * Based on a JavaScript code by Abu Mami and Yisrael Hersch
1680 * (abu-mami@kaluach.net, http://www.kaluach.net), who permitted
1681 * to translate the relevant functions into PHP and release them under
1682 * GNU GPL.
1683 *
1684 * The months are counted from Tishrei = 1. In a leap year, Adar I is 13
1685 * and Adar II is 14. In a non-leap year, Adar is 6.
1686 *
1687 * @param string $ts
1688 *
1689 * @return int[]
1690 */
1691 private static function tsToHebrew( $ts ) {
1692 # Parse date
1693 $year = substr( $ts, 0, 4 );
1694 $month = substr( $ts, 4, 2 );
1695 $day = substr( $ts, 6, 2 );
1696
1697 # Calculate Hebrew year
1698 $hebrewYear = $year + 3760;
1699
1700 # Month number when September = 1, August = 12
1701 $month += 4;
1702 if ( $month > 12 ) {
1703 # Next year
1704 $month -= 12;
1705 $year++;
1706 $hebrewYear++;
1707 }
1708
1709 # Calculate day of year from 1 September
1710 $dayOfYear = $day;
1711 for ( $i = 1; $i < $month; $i++ ) {
1712 if ( $i == 6 ) {
1713 # February
1714 $dayOfYear += 28;
1715 # Check if the year is leap
1716 if ( $year % 400 == 0 || ( $year % 4 == 0 && $year % 100 > 0 ) ) {
1717 $dayOfYear++;
1718 }
1719 } elseif ( $i == 8 || $i == 10 || $i == 1 || $i == 3 ) {
1720 $dayOfYear += 30;
1721 } else {
1722 $dayOfYear += 31;
1723 }
1724 }
1725
1726 # Calculate the start of the Hebrew year
1727 $start = self::hebrewYearStart( $hebrewYear );
1728
1729 # Calculate next year's start
1730 if ( $dayOfYear <= $start ) {
1731 # Day is before the start of the year - it is the previous year
1732 # Next year's start
1733 $nextStart = $start;
1734 # Previous year
1735 $year--;
1736 $hebrewYear--;
1737 # Add days since previous year's 1 September
1738 $dayOfYear += 365;
1739 if ( ( $year % 400 == 0 ) || ( $year % 100 != 0 && $year % 4 == 0 ) ) {
1740 # Leap year
1741 $dayOfYear++;
1742 }
1743 # Start of the new (previous) year
1744 $start = self::hebrewYearStart( $hebrewYear );
1745 } else {
1746 # Next year's start
1747 $nextStart = self::hebrewYearStart( $hebrewYear + 1 );
1748 }
1749
1750 # Calculate Hebrew day of year
1751 $hebrewDayOfYear = $dayOfYear - $start;
1752
1753 # Difference between year's days
1754 $diff = $nextStart - $start;
1755 # Add 12 (or 13 for leap years) days to ignore the difference between
1756 # Hebrew and Gregorian year (353 at least vs. 365/6) - now the
1757 # difference is only about the year type
1758 if ( ( $year % 400 == 0 ) || ( $year % 100 != 0 && $year % 4 == 0 ) ) {
1759 $diff += 13;
1760 } else {
1761 $diff += 12;
1762 }
1763
1764 # Check the year pattern, and is leap year
1765 # 0 means an incomplete year, 1 means a regular year, 2 means a complete year
1766 # This is mod 30, to work on both leap years (which add 30 days of Adar I)
1767 # and non-leap years
1768 $yearPattern = $diff % 30;
1769 # Check if leap year
1770 $isLeap = $diff >= 30;
1771
1772 # Calculate day in the month from number of day in the Hebrew year
1773 # Don't check Adar - if the day is not in Adar, we will stop before;
1774 # if it is in Adar, we will use it to check if it is Adar I or Adar II
1775 $hebrewDay = $hebrewDayOfYear;
1776 $hebrewMonth = 1;
1777 $days = 0;
1778 while ( $hebrewMonth <= 12 ) {
1779 # Calculate days in this month
1780 if ( $isLeap && $hebrewMonth == 6 ) {
1781 # Adar in a leap year
1782 if ( $isLeap ) {
1783 # Leap year - has Adar I, with 30 days, and Adar II, with 29 days
1784 $days = 30;
1785 if ( $hebrewDay <= $days ) {
1786 # Day in Adar I
1787 $hebrewMonth = 13;
1788 } else {
1789 # Subtract the days of Adar I
1790 $hebrewDay -= $days;
1791 # Try Adar II
1792 $days = 29;
1793 if ( $hebrewDay <= $days ) {
1794 # Day in Adar II
1795 $hebrewMonth = 14;
1796 }
1797 }
1798 }
1799 } elseif ( $hebrewMonth == 2 && $yearPattern == 2 ) {
1800 # Cheshvan in a complete year (otherwise as the rule below)
1801 $days = 30;
1802 } elseif ( $hebrewMonth == 3 && $yearPattern == 0 ) {
1803 # Kislev in an incomplete year (otherwise as the rule below)
1804 $days = 29;
1805 } else {
1806 # Odd months have 30 days, even have 29
1807 $days = 30 - ( $hebrewMonth - 1 ) % 2;
1808 }
1809 if ( $hebrewDay <= $days ) {
1810 # In the current month
1811 break;
1812 } else {
1813 # Subtract the days of the current month
1814 $hebrewDay -= $days;
1815 # Try in the next month
1816 $hebrewMonth++;
1817 }
1818 }
1819
1820 return [ $hebrewYear, $hebrewMonth, $hebrewDay, $days ];
1821 }
1822
1823 /**
1824 * This calculates the Hebrew year start, as days since 1 September.
1825 * Based on Carl Friedrich Gauss algorithm for finding Easter date.
1826 * Used for Hebrew date.
1827 *
1828 * @param int $year
1829 *
1830 * @return string
1831 */
1832 private static function hebrewYearStart( $year ) {
1833 $a = intval( ( 12 * ( $year - 1 ) + 17 ) % 19 );
1834 $b = intval( ( $year - 1 ) % 4 );
1835 $m = 32.044093161144 + 1.5542417966212 * $a + $b / 4.0 - 0.0031777940220923 * ( $year - 1 );
1836 if ( $m < 0 ) {
1837 $m--;
1838 }
1839 $Mar = intval( $m );
1840 if ( $m < 0 ) {
1841 $m++;
1842 }
1843 $m -= $Mar;
1844
1845 $c = intval( ( $Mar + 3 * ( $year - 1 ) + 5 * $b + 5 ) % 7 );
1846 if ( $c == 0 && $a > 11 && $m >= 0.89772376543210 ) {
1847 $Mar++;
1848 } elseif ( $c == 1 && $a > 6 && $m >= 0.63287037037037 ) {
1849 $Mar += 2;
1850 } elseif ( $c == 2 || $c == 4 || $c == 6 ) {
1851 $Mar++;
1852 }
1853
1854 $Mar += intval( ( $year - 3761 ) / 100 ) - intval( ( $year - 3761 ) / 400 ) - 24;
1855 return $Mar;
1856 }
1857
1858 /**
1859 * Algorithm to convert Gregorian dates to Thai solar dates,
1860 * Minguo dates or Minguo dates.
1861 *
1862 * Link: https://en.wikipedia.org/wiki/Thai_solar_calendar
1863 * https://en.wikipedia.org/wiki/Minguo_calendar
1864 * https://en.wikipedia.org/wiki/Japanese_era_name
1865 *
1866 * @param string $ts 14-character timestamp
1867 * @param string $cName Calender name
1868 * @return array Converted year, month, day
1869 */
1870 private static function tsToYear( $ts, $cName ) {
1871 $gy = substr( $ts, 0, 4 );
1872 $gm = substr( $ts, 4, 2 );
1873 $gd = substr( $ts, 6, 2 );
1874
1875 if ( !strcmp( $cName, 'thai' ) ) {
1876 # Thai solar dates
1877 # Add 543 years to the Gregorian calendar
1878 # Months and days are identical
1879 $gy_offset = $gy + 543;
1880 } elseif ( ( !strcmp( $cName, 'minguo' ) ) || !strcmp( $cName, 'juche' ) ) {
1881 # Minguo dates
1882 # Deduct 1911 years from the Gregorian calendar
1883 # Months and days are identical
1884 $gy_offset = $gy - 1911;
1885 } elseif ( !strcmp( $cName, 'tenno' ) ) {
1886 # Nengō dates up to Meiji period
1887 # Deduct years from the Gregorian calendar
1888 # depending on the nengo periods
1889 # Months and days are identical
1890 if ( ( $gy < 1912 )
1891 || ( ( $gy == 1912 ) && ( $gm < 7 ) )
1892 || ( ( $gy == 1912 ) && ( $gm == 7 ) && ( $gd < 31 ) )
1893 ) {
1894 # Meiji period
1895 $gy_gannen = $gy - 1868 + 1;
1896 $gy_offset = $gy_gannen;
1897 if ( $gy_gannen == 1 ) {
1898 $gy_offset = '元';
1899 }
1900 $gy_offset = '明治' . $gy_offset;
1901 } elseif (
1902 ( ( $gy == 1912 ) && ( $gm == 7 ) && ( $gd == 31 ) ) ||
1903 ( ( $gy == 1912 ) && ( $gm >= 8 ) ) ||
1904 ( ( $gy > 1912 ) && ( $gy < 1926 ) ) ||
1905 ( ( $gy == 1926 ) && ( $gm < 12 ) ) ||
1906 ( ( $gy == 1926 ) && ( $gm == 12 ) && ( $gd < 26 ) )
1907 ) {
1908 # Taishō period
1909 $gy_gannen = $gy - 1912 + 1;
1910 $gy_offset = $gy_gannen;
1911 if ( $gy_gannen == 1 ) {
1912 $gy_offset = '元';
1913 }
1914 $gy_offset = '大正' . $gy_offset;
1915 } elseif (
1916 ( ( $gy == 1926 ) && ( $gm == 12 ) && ( $gd >= 26 ) ) ||
1917 ( ( $gy > 1926 ) && ( $gy < 1989 ) ) ||
1918 ( ( $gy == 1989 ) && ( $gm == 1 ) && ( $gd < 8 ) )
1919 ) {
1920 # Shōwa period
1921 $gy_gannen = $gy - 1926 + 1;
1922 $gy_offset = $gy_gannen;
1923 if ( $gy_gannen == 1 ) {
1924 $gy_offset = '元';
1925 }
1926 $gy_offset = '昭和' . $gy_offset;
1927 } else {
1928 # Heisei period
1929 $gy_gannen = $gy - 1989 + 1;
1930 $gy_offset = $gy_gannen;
1931 if ( $gy_gannen == 1 ) {
1932 $gy_offset = '元';
1933 }
1934 $gy_offset = '平成' . $gy_offset;
1935 }
1936 } else {
1937 $gy_offset = $gy;
1938 }
1939
1940 return [ $gy_offset, $gm, $gd ];
1941 }
1942
1943 /**
1944 * Gets directionality of the first strongly directional codepoint, for embedBidi()
1945 *
1946 * This is the rule the BIDI algorithm uses to determine the directionality of
1947 * paragraphs ( http://unicode.org/reports/tr9/#The_Paragraph_Level ) and
1948 * FSI isolates ( http://unicode.org/reports/tr9/#Explicit_Directional_Isolates ).
1949 *
1950 * TODO: Does not handle BIDI control characters inside the text.
1951 * TODO: Does not handle unallocated characters.
1952 *
1953 * @param string $text Text to test
1954 * @return null|string Directionality ('ltr' or 'rtl') or null
1955 */
1956 private static function strongDirFromContent( $text = '' ) {
1957 if ( !preg_match( self::$strongDirRegex, $text, $matches ) ) {
1958 return null;
1959 }
1960 if ( $matches[1] === '' ) {
1961 return 'rtl';
1962 }
1963 return 'ltr';
1964 }
1965
1966 /**
1967 * Roman number formatting up to 10000
1968 *
1969 * @param int $num
1970 *
1971 * @return string
1972 */
1973 static function romanNumeral( $num ) {
1974 static $table = [
1975 [ '', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX', 'X' ],
1976 [ '', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC', 'C' ],
1977 [ '', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM', 'M' ],
1978 [ '', 'M', 'MM', 'MMM', 'MMMM', 'MMMMM', 'MMMMMM', 'MMMMMMM',
1979 'MMMMMMMM', 'MMMMMMMMM', 'MMMMMMMMMM' ]
1980 ];
1981
1982 $num = intval( $num );
1983 if ( $num > 10000 || $num <= 0 ) {
1984 return $num;
1985 }
1986
1987 $s = '';
1988 for ( $pow10 = 1000, $i = 3; $i >= 0; $pow10 /= 10, $i-- ) {
1989 if ( $num >= $pow10 ) {
1990 $s .= $table[$i][(int)floor( $num / $pow10 )];
1991 }
1992 $num = $num % $pow10;
1993 }
1994 return $s;
1995 }
1996
1997 /**
1998 * Hebrew Gematria number formatting up to 9999
1999 *
2000 * @param int $num
2001 *
2002 * @return string
2003 */
2004 static function hebrewNumeral( $num ) {
2005 static $table = [
2006 [ '', 'א', 'ב', 'ג', 'ד', 'ה', 'ו', 'ז', 'ח', 'ט', 'י' ],
2007 [ '', 'י', 'כ', 'ל', 'מ', 'נ', 'ס', 'ע', 'פ', 'צ', 'ק' ],
2008 [ '',
2009 [ 'ק' ],
2010 [ 'ר' ],
2011 [ 'ש' ],
2012 [ 'ת' ],
2013 [ 'ת', 'ק' ],
2014 [ 'ת', 'ר' ],
2015 [ 'ת', 'ש' ],
2016 [ 'ת', 'ת' ],
2017 [ 'ת', 'ת', 'ק' ],
2018 [ 'ת', 'ת', 'ר' ],
2019 ],
2020 [ '', 'א', 'ב', 'ג', 'ד', 'ה', 'ו', 'ז', 'ח', 'ט', 'י' ]
2021 ];
2022
2023 $num = intval( $num );
2024 if ( $num > 9999 || $num <= 0 ) {
2025 return $num;
2026 }
2027
2028 // Round thousands have special notations
2029 if ( $num === 1000 ) {
2030 return "א' אלף";
2031 } elseif ( $num % 1000 === 0 ) {
2032 return $table[0][$num / 1000] . "' אלפים";
2033 }
2034
2035 $letters = [];
2036
2037 for ( $pow10 = 1000, $i = 3; $i >= 0; $pow10 /= 10, $i-- ) {
2038 if ( $num >= $pow10 ) {
2039 if ( $num === 15 || $num === 16 ) {
2040 $letters[] = $table[0][9];
2041 $letters[] = $table[0][$num - 9];
2042 $num = 0;
2043 } else {
2044 $letters = array_merge(
2045 $letters,
2046 (array)$table[$i][intval( $num / $pow10 )]
2047 );
2048
2049 if ( $pow10 === 1000 ) {
2050 $letters[] = "'";
2051 }
2052 }
2053 }
2054
2055 $num = $num % $pow10;
2056 }
2057
2058 $preTransformLength = count( $letters );
2059 if ( $preTransformLength === 1 ) {
2060 // Add geresh (single quote) to one-letter numbers
2061 $letters[] = "'";
2062 } else {
2063 $lastIndex = $preTransformLength - 1;
2064 $letters[$lastIndex] = str_replace(
2065 [ 'כ', 'מ', 'נ', 'פ', 'צ' ],
2066 [ 'ך', 'ם', 'ן', 'ף', 'ץ' ],
2067 $letters[$lastIndex]
2068 );
2069
2070 // Add gershayim (double quote) to multiple-letter numbers,
2071 // but exclude numbers with only one letter after the thousands
2072 // (1001-1009, 1020, 1030, 2001-2009, etc.)
2073 if ( $letters[1] === "'" && $preTransformLength === 3 ) {
2074 $letters[] = "'";
2075 } else {
2076 array_splice( $letters, -1, 0, '"' );
2077 }
2078 }
2079
2080 return implode( $letters );
2081 }
2082
2083 /**
2084 * Used by date() and time() to adjust the time output.
2085 *
2086 * @param string $ts The time in date('YmdHis') format
2087 * @param mixed $tz Adjust the time by this amount (default false, mean we
2088 * get user timecorrection setting)
2089 * @return int
2090 */
2091 public function userAdjust( $ts, $tz = false ) {
2092 global $wgUser, $wgLocalTZoffset;
2093
2094 if ( $tz === false ) {
2095 $tz = $wgUser->getOption( 'timecorrection' );
2096 }
2097
2098 $data = explode( '|', $tz, 3 );
2099
2100 if ( $data[0] == 'ZoneInfo' ) {
2101 MediaWiki\suppressWarnings();
2102 $userTZ = timezone_open( $data[2] );
2103 MediaWiki\restoreWarnings();
2104 if ( $userTZ !== false ) {
2105 $date = date_create( $ts, timezone_open( 'UTC' ) );
2106 date_timezone_set( $date, $userTZ );
2107 $date = date_format( $date, 'YmdHis' );
2108 return $date;
2109 }
2110 # Unrecognized timezone, default to 'Offset' with the stored offset.
2111 $data[0] = 'Offset';
2112 }
2113
2114 if ( $data[0] == 'System' || $tz == '' ) {
2115 # Global offset in minutes.
2116 $minDiff = $wgLocalTZoffset;
2117 } elseif ( $data[0] == 'Offset' ) {
2118 $minDiff = intval( $data[1] );
2119 } else {
2120 $data = explode( ':', $tz );
2121 if ( count( $data ) == 2 ) {
2122 $data[0] = intval( $data[0] );
2123 $data[1] = intval( $data[1] );
2124 $minDiff = abs( $data[0] ) * 60 + $data[1];
2125 if ( $data[0] < 0 ) {
2126 $minDiff = -$minDiff;
2127 }
2128 } else {
2129 $minDiff = intval( $data[0] ) * 60;
2130 }
2131 }
2132
2133 # No difference ? Return time unchanged
2134 if ( 0 == $minDiff ) {
2135 return $ts;
2136 }
2137
2138 MediaWiki\suppressWarnings(); // E_STRICT system time bitching
2139 # Generate an adjusted date; take advantage of the fact that mktime
2140 # will normalize out-of-range values so we don't have to split $minDiff
2141 # into hours and minutes.
2142 $t = mktime( (
2143 (int)substr( $ts, 8, 2 ) ), # Hours
2144 (int)substr( $ts, 10, 2 ) + $minDiff, # Minutes
2145 (int)substr( $ts, 12, 2 ), # Seconds
2146 (int)substr( $ts, 4, 2 ), # Month
2147 (int)substr( $ts, 6, 2 ), # Day
2148 (int)substr( $ts, 0, 4 ) ); # Year
2149
2150 $date = date( 'YmdHis', $t );
2151 MediaWiki\restoreWarnings();
2152
2153 return $date;
2154 }
2155
2156 /**
2157 * This is meant to be used by time(), date(), and timeanddate() to get
2158 * the date preference they're supposed to use, it should be used in
2159 * all children.
2160 *
2161 *<code>
2162 * function timeanddate([...], $format = true) {
2163 * $datePreference = $this->dateFormat($format);
2164 * [...]
2165 * }
2166 *</code>
2167 *
2168 * @param int|string|bool $usePrefs If true, the user's preference is used
2169 * if false, the site/language default is used
2170 * if int/string, assumed to be a format.
2171 * @return string
2172 */
2173 function dateFormat( $usePrefs = true ) {
2174 global $wgUser;
2175
2176 if ( is_bool( $usePrefs ) ) {
2177 if ( $usePrefs ) {
2178 $datePreference = $wgUser->getDatePreference();
2179 } else {
2180 $datePreference = (string)User::getDefaultOption( 'date' );
2181 }
2182 } else {
2183 $datePreference = (string)$usePrefs;
2184 }
2185
2186 // return int
2187 if ( $datePreference == '' ) {
2188 return 'default';
2189 }
2190
2191 return $datePreference;
2192 }
2193
2194 /**
2195 * Get a format string for a given type and preference
2196 * @param string $type May be 'date', 'time', 'both', or 'pretty'.
2197 * @param string $pref The format name as it appears in Messages*.php under
2198 * $datePreferences.
2199 *
2200 * @since 1.22 New type 'pretty' that provides a more readable timestamp format
2201 *
2202 * @return string
2203 */
2204 function getDateFormatString( $type, $pref ) {
2205 $wasDefault = false;
2206 if ( $pref == 'default' ) {
2207 $wasDefault = true;
2208 $pref = $this->getDefaultDateFormat();
2209 }
2210
2211 if ( !isset( $this->dateFormatStrings[$type][$pref] ) ) {
2212 $df = self::$dataCache->getSubitem( $this->mCode, 'dateFormats', "$pref $type" );
2213
2214 if ( $type === 'pretty' && $df === null ) {
2215 $df = $this->getDateFormatString( 'date', $pref );
2216 }
2217
2218 if ( !$wasDefault && $df === null ) {
2219 $pref = $this->getDefaultDateFormat();
2220 $df = self::$dataCache->getSubitem( $this->mCode, 'dateFormats', "$pref $type" );
2221 }
2222
2223 $this->dateFormatStrings[$type][$pref] = $df;
2224 }
2225 return $this->dateFormatStrings[$type][$pref];
2226 }
2227
2228 /**
2229 * @param string $ts The time format which needs to be turned into a
2230 * date('YmdHis') format with wfTimestamp(TS_MW,$ts)
2231 * @param bool $adj Whether to adjust the time output according to the
2232 * user configured offset ($timecorrection)
2233 * @param mixed $format True to use user's date format preference
2234 * @param string|bool $timecorrection The time offset as returned by
2235 * validateTimeZone() in Special:Preferences
2236 * @return string
2237 */
2238 public function date( $ts, $adj = false, $format = true, $timecorrection = false ) {
2239 $ts = wfTimestamp( TS_MW, $ts );
2240 if ( $adj ) {
2241 $ts = $this->userAdjust( $ts, $timecorrection );
2242 }
2243 $df = $this->getDateFormatString( 'date', $this->dateFormat( $format ) );
2244 return $this->sprintfDate( $df, $ts );
2245 }
2246
2247 /**
2248 * @param string $ts The time format which needs to be turned into a
2249 * date('YmdHis') format with wfTimestamp(TS_MW,$ts)
2250 * @param bool $adj Whether to adjust the time output according to the
2251 * user configured offset ($timecorrection)
2252 * @param mixed $format True to use user's date format preference
2253 * @param string|bool $timecorrection The time offset as returned by
2254 * validateTimeZone() in Special:Preferences
2255 * @return string
2256 */
2257 public function time( $ts, $adj = false, $format = true, $timecorrection = false ) {
2258 $ts = wfTimestamp( TS_MW, $ts );
2259 if ( $adj ) {
2260 $ts = $this->userAdjust( $ts, $timecorrection );
2261 }
2262 $df = $this->getDateFormatString( 'time', $this->dateFormat( $format ) );
2263 return $this->sprintfDate( $df, $ts );
2264 }
2265
2266 /**
2267 * @param string $ts The time format which needs to be turned into a
2268 * date('YmdHis') format with wfTimestamp(TS_MW,$ts)
2269 * @param bool $adj Whether to adjust the time output according to the
2270 * user configured offset ($timecorrection)
2271 * @param mixed $format What format to return, if it's false output the
2272 * default one (default true)
2273 * @param string|bool $timecorrection The time offset as returned by
2274 * validateTimeZone() in Special:Preferences
2275 * @return string
2276 */
2277 public function timeanddate( $ts, $adj = false, $format = true, $timecorrection = false ) {
2278 $ts = wfTimestamp( TS_MW, $ts );
2279 if ( $adj ) {
2280 $ts = $this->userAdjust( $ts, $timecorrection );
2281 }
2282 $df = $this->getDateFormatString( 'both', $this->dateFormat( $format ) );
2283 return $this->sprintfDate( $df, $ts );
2284 }
2285
2286 /**
2287 * Takes a number of seconds and turns it into a text using values such as hours and minutes.
2288 *
2289 * @since 1.20
2290 *
2291 * @param int $seconds The amount of seconds.
2292 * @param array $chosenIntervals The intervals to enable.
2293 *
2294 * @return string
2295 */
2296 public function formatDuration( $seconds, array $chosenIntervals = [] ) {
2297 $intervals = $this->getDurationIntervals( $seconds, $chosenIntervals );
2298
2299 $segments = [];
2300
2301 foreach ( $intervals as $intervalName => $intervalValue ) {
2302 // Messages: duration-seconds, duration-minutes, duration-hours, duration-days, duration-weeks,
2303 // duration-years, duration-decades, duration-centuries, duration-millennia
2304 $message = wfMessage( 'duration-' . $intervalName )->numParams( $intervalValue );
2305 $segments[] = $message->inLanguage( $this )->escaped();
2306 }
2307
2308 return $this->listToText( $segments );
2309 }
2310
2311 /**
2312 * Takes a number of seconds and returns an array with a set of corresponding intervals.
2313 * For example 65 will be turned into [ minutes => 1, seconds => 5 ].
2314 *
2315 * @since 1.20
2316 *
2317 * @param int $seconds The amount of seconds.
2318 * @param array $chosenIntervals The intervals to enable.
2319 *
2320 * @return array
2321 */
2322 public function getDurationIntervals( $seconds, array $chosenIntervals = [] ) {
2323 if ( empty( $chosenIntervals ) ) {
2324 $chosenIntervals = [
2325 'millennia',
2326 'centuries',
2327 'decades',
2328 'years',
2329 'days',
2330 'hours',
2331 'minutes',
2332 'seconds'
2333 ];
2334 }
2335
2336 $intervals = array_intersect_key( self::$durationIntervals, array_flip( $chosenIntervals ) );
2337 $sortedNames = array_keys( $intervals );
2338 $smallestInterval = array_pop( $sortedNames );
2339
2340 $segments = [];
2341
2342 foreach ( $intervals as $name => $length ) {
2343 $value = floor( $seconds / $length );
2344
2345 if ( $value > 0 || ( $name == $smallestInterval && empty( $segments ) ) ) {
2346 $seconds -= $value * $length;
2347 $segments[$name] = $value;
2348 }
2349 }
2350
2351 return $segments;
2352 }
2353
2354 /**
2355 * Internal helper function for userDate(), userTime() and userTimeAndDate()
2356 *
2357 * @param string $type Can be 'date', 'time' or 'both'
2358 * @param string $ts The time format which needs to be turned into a
2359 * date('YmdHis') format with wfTimestamp(TS_MW,$ts)
2360 * @param User $user User object used to get preferences for timezone and format
2361 * @param array $options Array, can contain the following keys:
2362 * - 'timecorrection': time correction, can have the following values:
2363 * - true: use user's preference
2364 * - false: don't use time correction
2365 * - int: value of time correction in minutes
2366 * - 'format': format to use, can have the following values:
2367 * - true: use user's preference
2368 * - false: use default preference
2369 * - string: format to use
2370 * @since 1.19
2371 * @return string
2372 */
2373 private function internalUserTimeAndDate( $type, $ts, User $user, array $options ) {
2374 $ts = wfTimestamp( TS_MW, $ts );
2375 $options += [ 'timecorrection' => true, 'format' => true ];
2376 if ( $options['timecorrection'] !== false ) {
2377 if ( $options['timecorrection'] === true ) {
2378 $offset = $user->getOption( 'timecorrection' );
2379 } else {
2380 $offset = $options['timecorrection'];
2381 }
2382 $ts = $this->userAdjust( $ts, $offset );
2383 }
2384 if ( $options['format'] === true ) {
2385 $format = $user->getDatePreference();
2386 } else {
2387 $format = $options['format'];
2388 }
2389 $df = $this->getDateFormatString( $type, $this->dateFormat( $format ) );
2390 return $this->sprintfDate( $df, $ts );
2391 }
2392
2393 /**
2394 * Get the formatted date for the given timestamp and formatted for
2395 * the given user.
2396 *
2397 * @param mixed $ts Mixed: the time format which needs to be turned into a
2398 * date('YmdHis') format with wfTimestamp(TS_MW,$ts)
2399 * @param User $user User object used to get preferences for timezone and format
2400 * @param array $options Array, can contain the following keys:
2401 * - 'timecorrection': time correction, can have the following values:
2402 * - true: use user's preference
2403 * - false: don't use time correction
2404 * - int: value of time correction in minutes
2405 * - 'format': format to use, can have the following values:
2406 * - true: use user's preference
2407 * - false: use default preference
2408 * - string: format to use
2409 * @since 1.19
2410 * @return string
2411 */
2412 public function userDate( $ts, User $user, array $options = [] ) {
2413 return $this->internalUserTimeAndDate( 'date', $ts, $user, $options );
2414 }
2415
2416 /**
2417 * Get the formatted time for the given timestamp and formatted for
2418 * the given user.
2419 *
2420 * @param mixed $ts The time format which needs to be turned into a
2421 * date('YmdHis') format with wfTimestamp(TS_MW,$ts)
2422 * @param User $user User object used to get preferences for timezone and format
2423 * @param array $options Array, can contain the following keys:
2424 * - 'timecorrection': time correction, can have the following values:
2425 * - true: use user's preference
2426 * - false: don't use time correction
2427 * - int: value of time correction in minutes
2428 * - 'format': format to use, can have the following values:
2429 * - true: use user's preference
2430 * - false: use default preference
2431 * - string: format to use
2432 * @since 1.19
2433 * @return string
2434 */
2435 public function userTime( $ts, User $user, array $options = [] ) {
2436 return $this->internalUserTimeAndDate( 'time', $ts, $user, $options );
2437 }
2438
2439 /**
2440 * Get the formatted date and time for the given timestamp and formatted for
2441 * the given user.
2442 *
2443 * @param mixed $ts The time format which needs to be turned into a
2444 * date('YmdHis') format with wfTimestamp(TS_MW,$ts)
2445 * @param User $user User object used to get preferences for timezone and format
2446 * @param array $options Array, can contain the following keys:
2447 * - 'timecorrection': time correction, can have the following values:
2448 * - true: use user's preference
2449 * - false: don't use time correction
2450 * - int: value of time correction in minutes
2451 * - 'format': format to use, can have the following values:
2452 * - true: use user's preference
2453 * - false: use default preference
2454 * - string: format to use
2455 * @since 1.19
2456 * @return string
2457 */
2458 public function userTimeAndDate( $ts, User $user, array $options = [] ) {
2459 return $this->internalUserTimeAndDate( 'both', $ts, $user, $options );
2460 }
2461
2462 /**
2463 * Get the timestamp in a human-friendly relative format, e.g., "3 days ago".
2464 *
2465 * Determine the difference between the timestamp and the current time, and
2466 * generate a readable timestamp by returning "<N> <units> ago", where the
2467 * largest possible unit is used.
2468 *
2469 * @since 1.26 (Prior to 1.26 method existed but was not meant to be used directly)
2470 *
2471 * @param MWTimestamp $time
2472 * @param MWTimestamp|null $relativeTo The base timestamp to compare to (defaults to now)
2473 * @param User|null $user User the timestamp is being generated for
2474 * (or null to use main context's user)
2475 * @return string Formatted timestamp
2476 */
2477 public function getHumanTimestamp(
2478 MWTimestamp $time, MWTimestamp $relativeTo = null, User $user = null
2479 ) {
2480 if ( $relativeTo === null ) {
2481 $relativeTo = new MWTimestamp();
2482 }
2483 if ( $user === null ) {
2484 $user = RequestContext::getMain()->getUser();
2485 }
2486
2487 // Adjust for the user's timezone.
2488 $offsetThis = $time->offsetForUser( $user );
2489 $offsetRel = $relativeTo->offsetForUser( $user );
2490
2491 $ts = '';
2492 if ( Hooks::run( 'GetHumanTimestamp', [ &$ts, $time, $relativeTo, $user, $this ] ) ) {
2493 $ts = $this->getHumanTimestampInternal( $time, $relativeTo, $user );
2494 }
2495
2496 // Reset the timezone on the objects.
2497 $time->timestamp->sub( $offsetThis );
2498 $relativeTo->timestamp->sub( $offsetRel );
2499
2500 return $ts;
2501 }
2502
2503 /**
2504 * Convert an MWTimestamp into a pretty human-readable timestamp using
2505 * the given user preferences and relative base time.
2506 *
2507 * @see Language::getHumanTimestamp
2508 * @param MWTimestamp $ts Timestamp to prettify
2509 * @param MWTimestamp $relativeTo Base timestamp
2510 * @param User $user User preferences to use
2511 * @return string Human timestamp
2512 * @since 1.26
2513 */
2514 private function getHumanTimestampInternal(
2515 MWTimestamp $ts, MWTimestamp $relativeTo, User $user
2516 ) {
2517 $diff = $ts->diff( $relativeTo );
2518 $diffDay = (bool)( (int)$ts->timestamp->format( 'w' ) -
2519 (int)$relativeTo->timestamp->format( 'w' ) );
2520 $days = $diff->days ?: (int)$diffDay;
2521 if ( $diff->invert || $days > 5
2522 && $ts->timestamp->format( 'Y' ) !== $relativeTo->timestamp->format( 'Y' )
2523 ) {
2524 // Timestamps are in different years: use full timestamp
2525 // Also do full timestamp for future dates
2526 /**
2527 * @todo FIXME: Add better handling of future timestamps.
2528 */
2529 $format = $this->getDateFormatString( 'both', $user->getDatePreference() ?: 'default' );
2530 $ts = $this->sprintfDate( $format, $ts->getTimestamp( TS_MW ) );
2531 } elseif ( $days > 5 ) {
2532 // Timestamps are in same year, but more than 5 days ago: show day and month only.
2533 $format = $this->getDateFormatString( 'pretty', $user->getDatePreference() ?: 'default' );
2534 $ts = $this->sprintfDate( $format, $ts->getTimestamp( TS_MW ) );
2535 } elseif ( $days > 1 ) {
2536 // Timestamp within the past week: show the day of the week and time
2537 $format = $this->getDateFormatString( 'time', $user->getDatePreference() ?: 'default' );
2538 $weekday = self::$mWeekdayMsgs[$ts->timestamp->format( 'w' )];
2539 // Messages:
2540 // sunday-at, monday-at, tuesday-at, wednesday-at, thursday-at, friday-at, saturday-at
2541 $ts = wfMessage( "$weekday-at" )
2542 ->inLanguage( $this )
2543 ->params( $this->sprintfDate( $format, $ts->getTimestamp( TS_MW ) ) )
2544 ->text();
2545 } elseif ( $days == 1 ) {
2546 // Timestamp was yesterday: say 'yesterday' and the time.
2547 $format = $this->getDateFormatString( 'time', $user->getDatePreference() ?: 'default' );
2548 $ts = wfMessage( 'yesterday-at' )
2549 ->inLanguage( $this )
2550 ->params( $this->sprintfDate( $format, $ts->getTimestamp( TS_MW ) ) )
2551 ->text();
2552 } elseif ( $diff->h > 1 || $diff->h == 1 && $diff->i > 30 ) {
2553 // Timestamp was today, but more than 90 minutes ago: say 'today' and the time.
2554 $format = $this->getDateFormatString( 'time', $user->getDatePreference() ?: 'default' );
2555 $ts = wfMessage( 'today-at' )
2556 ->inLanguage( $this )
2557 ->params( $this->sprintfDate( $format, $ts->getTimestamp( TS_MW ) ) )
2558 ->text();
2559
2560 // From here on in, the timestamp was soon enough ago so that we can simply say
2561 // XX units ago, e.g., "2 hours ago" or "5 minutes ago"
2562 } elseif ( $diff->h == 1 ) {
2563 // Less than 90 minutes, but more than an hour ago.
2564 $ts = wfMessage( 'hours-ago' )->inLanguage( $this )->numParams( 1 )->text();
2565 } elseif ( $diff->i >= 1 ) {
2566 // A few minutes ago.
2567 $ts = wfMessage( 'minutes-ago' )->inLanguage( $this )->numParams( $diff->i )->text();
2568 } elseif ( $diff->s >= 30 ) {
2569 // Less than a minute, but more than 30 sec ago.
2570 $ts = wfMessage( 'seconds-ago' )->inLanguage( $this )->numParams( $diff->s )->text();
2571 } else {
2572 // Less than 30 seconds ago.
2573 $ts = wfMessage( 'just-now' )->text();
2574 }
2575
2576 return $ts;
2577 }
2578
2579 /**
2580 * @param string $key
2581 * @return array|null
2582 */
2583 public function getMessage( $key ) {
2584 return self::$dataCache->getSubitem( $this->mCode, 'messages', $key );
2585 }
2586
2587 /**
2588 * @return array
2589 */
2590 function getAllMessages() {
2591 return self::$dataCache->getItem( $this->mCode, 'messages' );
2592 }
2593
2594 /**
2595 * @param string $in
2596 * @param string $out
2597 * @param string $string
2598 * @return string
2599 */
2600 public function iconv( $in, $out, $string ) {
2601 # Even with //IGNORE iconv can whine about illegal characters in
2602 # *input* string. We just ignore those too.
2603 # REF: https://bugs.php.net/bug.php?id=37166
2604 # REF: https://phabricator.wikimedia.org/T18885
2605 MediaWiki\suppressWarnings();
2606 $text = iconv( $in, $out . '//IGNORE', $string );
2607 MediaWiki\restoreWarnings();
2608 return $text;
2609 }
2610
2611 // callback functions for ucwords(), ucwordbreaks()
2612
2613 /**
2614 * @param array $matches
2615 * @return mixed|string
2616 */
2617 function ucwordbreaksCallbackAscii( $matches ) {
2618 return $this->ucfirst( $matches[1] );
2619 }
2620
2621 /**
2622 * @param array $matches
2623 * @return string
2624 */
2625 function ucwordbreaksCallbackMB( $matches ) {
2626 return mb_strtoupper( $matches[0] );
2627 }
2628
2629 /**
2630 * @param array $matches
2631 * @return string
2632 */
2633 function ucwordsCallbackMB( $matches ) {
2634 return mb_strtoupper( $matches[0] );
2635 }
2636
2637 /**
2638 * Make a string's first character uppercase
2639 *
2640 * @param string $str
2641 *
2642 * @return string
2643 */
2644 public function ucfirst( $str ) {
2645 $o = ord( $str );
2646 if ( $o < 96 ) { // if already uppercase...
2647 return $str;
2648 } elseif ( $o < 128 ) {
2649 return ucfirst( $str ); // use PHP's ucfirst()
2650 } else {
2651 // fall back to more complex logic in case of multibyte strings
2652 return $this->uc( $str, true );
2653 }
2654 }
2655
2656 /**
2657 * Convert a string to uppercase
2658 *
2659 * @param string $str
2660 * @param bool $first
2661 *
2662 * @return string
2663 */
2664 public function uc( $str, $first = false ) {
2665 if ( $first ) {
2666 if ( $this->isMultibyte( $str ) ) {
2667 return mb_strtoupper( mb_substr( $str, 0, 1 ) ) . mb_substr( $str, 1 );
2668 } else {
2669 return ucfirst( $str );
2670 }
2671 } else {
2672 return $this->isMultibyte( $str ) ? mb_strtoupper( $str ) : strtoupper( $str );
2673 }
2674 }
2675
2676 /**
2677 * @param string $str
2678 * @return mixed|string
2679 */
2680 function lcfirst( $str ) {
2681 $o = ord( $str );
2682 if ( !$o ) {
2683 return strval( $str );
2684 } elseif ( $o >= 128 ) {
2685 return $this->lc( $str, true );
2686 } elseif ( $o > 96 ) {
2687 return $str;
2688 } else {
2689 $str[0] = strtolower( $str[0] );
2690 return $str;
2691 }
2692 }
2693
2694 /**
2695 * @param string $str
2696 * @param bool $first
2697 * @return mixed|string
2698 */
2699 function lc( $str, $first = false ) {
2700 if ( $first ) {
2701 if ( $this->isMultibyte( $str ) ) {
2702 return mb_strtolower( mb_substr( $str, 0, 1 ) ) . mb_substr( $str, 1 );
2703 } else {
2704 return strtolower( substr( $str, 0, 1 ) ) . substr( $str, 1 );
2705 }
2706 } else {
2707 return $this->isMultibyte( $str ) ? mb_strtolower( $str ) : strtolower( $str );
2708 }
2709 }
2710
2711 /**
2712 * @param string $str
2713 * @return bool
2714 */
2715 function isMultibyte( $str ) {
2716 return strlen( $str ) !== mb_strlen( $str );
2717 }
2718
2719 /**
2720 * @param string $str
2721 * @return mixed|string
2722 */
2723 function ucwords( $str ) {
2724 if ( $this->isMultibyte( $str ) ) {
2725 $str = $this->lc( $str );
2726
2727 // regexp to find first letter in each word (i.e. after each space)
2728 $replaceRegexp = "/^([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)| ([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)/";
2729
2730 // function to use to capitalize a single char
2731 return preg_replace_callback(
2732 $replaceRegexp,
2733 [ $this, 'ucwordsCallbackMB' ],
2734 $str
2735 );
2736 } else {
2737 return ucwords( strtolower( $str ) );
2738 }
2739 }
2740
2741 /**
2742 * capitalize words at word breaks
2743 *
2744 * @param string $str
2745 * @return mixed
2746 */
2747 function ucwordbreaks( $str ) {
2748 if ( $this->isMultibyte( $str ) ) {
2749 $str = $this->lc( $str );
2750
2751 // since \b doesn't work for UTF-8, we explicitely define word break chars
2752 $breaks = "[ \-\(\)\}\{\.,\?!]";
2753
2754 // find first letter after word break
2755 $replaceRegexp = "/^([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)|" .
2756 "$breaks([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)/";
2757
2758 return preg_replace_callback(
2759 $replaceRegexp,
2760 [ $this, 'ucwordbreaksCallbackMB' ],
2761 $str
2762 );
2763 } else {
2764 return preg_replace_callback(
2765 '/\b([\w\x80-\xff]+)\b/',
2766 [ $this, 'ucwordbreaksCallbackAscii' ],
2767 $str
2768 );
2769 }
2770 }
2771
2772 /**
2773 * Return a case-folded representation of $s
2774 *
2775 * This is a representation such that caseFold($s1)==caseFold($s2) if $s1
2776 * and $s2 are the same except for the case of their characters. It is not
2777 * necessary for the value returned to make sense when displayed.
2778 *
2779 * Do *not* perform any other normalisation in this function. If a caller
2780 * uses this function when it should be using a more general normalisation
2781 * function, then fix the caller.
2782 *
2783 * @param string $s
2784 *
2785 * @return string
2786 */
2787 function caseFold( $s ) {
2788 return $this->uc( $s );
2789 }
2790
2791 /**
2792 * @param string $s
2793 * @return string
2794 * @throws MWException
2795 */
2796 function checkTitleEncoding( $s ) {
2797 if ( is_array( $s ) ) {
2798 throw new MWException( 'Given array to checkTitleEncoding.' );
2799 }
2800 if ( StringUtils::isUtf8( $s ) ) {
2801 return $s;
2802 }
2803
2804 return $this->iconv( $this->fallback8bitEncoding(), 'utf-8', $s );
2805 }
2806
2807 /**
2808 * @return array
2809 */
2810 function fallback8bitEncoding() {
2811 return self::$dataCache->getItem( $this->mCode, 'fallback8bitEncoding' );
2812 }
2813
2814 /**
2815 * Most writing systems use whitespace to break up words.
2816 * Some languages such as Chinese don't conventionally do this,
2817 * which requires special handling when breaking up words for
2818 * searching etc.
2819 *
2820 * @return bool
2821 */
2822 function hasWordBreaks() {
2823 return true;
2824 }
2825
2826 /**
2827 * Some languages such as Chinese require word segmentation,
2828 * Specify such segmentation when overridden in derived class.
2829 *
2830 * @param string $string
2831 * @return string
2832 */
2833 function segmentByWord( $string ) {
2834 return $string;
2835 }
2836
2837 /**
2838 * Some languages have special punctuation need to be normalized.
2839 * Make such changes here.
2840 *
2841 * @param string $string
2842 * @return string
2843 */
2844 function normalizeForSearch( $string ) {
2845 return self::convertDoubleWidth( $string );
2846 }
2847
2848 /**
2849 * convert double-width roman characters to single-width.
2850 * range: ff00-ff5f ~= 0020-007f
2851 *
2852 * @param string $string
2853 *
2854 * @return string
2855 */
2856 protected static function convertDoubleWidth( $string ) {
2857 static $full = null;
2858 static $half = null;
2859
2860 if ( $full === null ) {
2861 $fullWidth = "０１２３４５６７８９ＡＢＣＤＥＦＧＨＩＪＫＬＭＮＯＰＱＲＳＴＵＶＷＸＹＺａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ";
2862 $halfWidth = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
2863 $full = str_split( $fullWidth, 3 );
2864 $half = str_split( $halfWidth );
2865 }
2866
2867 $string = str_replace( $full, $half, $string );
2868 return $string;
2869 }
2870
2871 /**
2872 * @param string $string
2873 * @param string $pattern
2874 * @return string
2875 */
2876 protected static function insertSpace( $string, $pattern ) {
2877 $string = preg_replace( $pattern, " $1 ", $string );
2878 $string = preg_replace( '/ +/', ' ', $string );
2879 return $string;
2880 }
2881
2882 /**
2883 * @param array $termsArray
2884 * @return array
2885 */
2886 function convertForSearchResult( $termsArray ) {
2887 # some languages, e.g. Chinese, need to do a conversion
2888 # in order for search results to be displayed correctly
2889 return $termsArray;
2890 }
2891
2892 /**
2893 * Get the first character of a string.
2894 *
2895 * @param string $s
2896 * @return string
2897 */
2898 function firstChar( $s ) {
2899 $matches = [];
2900 preg_match(
2901 '/^([\x00-\x7f]|[\xc0-\xdf][\x80-\xbf]|' .
2902 '[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xf7][\x80-\xbf]{3})/',
2903 $s,
2904 $matches
2905 );
2906
2907 if ( isset( $matches[1] ) ) {
2908 if ( strlen( $matches[1] ) != 3 ) {
2909 return $matches[1];
2910 }
2911
2912 // Break down Hangul syllables to grab the first jamo
2913 $code = UtfNormal\Utils::utf8ToCodepoint( $matches[1] );
2914 if ( $code < 0xac00 || 0xd7a4 <= $code ) {
2915 return $matches[1];
2916 } elseif ( $code < 0xb098 ) {
2917 return "\xe3\x84\xb1";
2918 } elseif ( $code < 0xb2e4 ) {
2919 return "\xe3\x84\xb4";
2920 } elseif ( $code < 0xb77c ) {
2921 return "\xe3\x84\xb7";
2922 } elseif ( $code < 0xb9c8 ) {
2923 return "\xe3\x84\xb9";
2924 } elseif ( $code < 0xbc14 ) {
2925 return "\xe3\x85\x81";
2926 } elseif ( $code < 0xc0ac ) {
2927 return "\xe3\x85\x82";
2928 } elseif ( $code < 0xc544 ) {
2929 return "\xe3\x85\x85";
2930 } elseif ( $code < 0xc790 ) {
2931 return "\xe3\x85\x87";
2932 } elseif ( $code < 0xcc28 ) {
2933 return "\xe3\x85\x88";
2934 } elseif ( $code < 0xce74 ) {
2935 return "\xe3\x85\x8a";
2936 } elseif ( $code < 0xd0c0 ) {
2937 return "\xe3\x85\x8b";
2938 } elseif ( $code < 0xd30c ) {
2939 return "\xe3\x85\x8c";
2940 } elseif ( $code < 0xd558 ) {
2941 return "\xe3\x85\x8d";
2942 } else {
2943 return "\xe3\x85\x8e";
2944 }
2945 } else {
2946 return '';
2947 }
2948 }
2949
2950 /**
2951 * @deprecated No-op since 1.28
2952 */
2953 function initEncoding() {
2954 // No-op.
2955 }
2956
2957 /**
2958 * @param string $s
2959 * @return string
2960 * @deprecated No-op since 1.28
2961 */
2962 function recodeForEdit( $s ) {
2963 return $s;
2964 }
2965
2966 /**
2967 * @param string $s
2968 * @return string
2969 * @deprecated No-op since 1.28
2970 */
2971 function recodeInput( $s ) {
2972 return $s;
2973 }
2974
2975 /**
2976 * Convert a UTF-8 string to normal form C. In Malayalam and Arabic, this
2977 * also cleans up certain backwards-compatible sequences, converting them
2978 * to the modern Unicode equivalent.
2979 *
2980 * This is language-specific for performance reasons only.
2981 *
2982 * @param string $s
2983 *
2984 * @return string
2985 */
2986 function normalize( $s ) {
2987 global $wgAllUnicodeFixes;
2988 $s = UtfNormal\Validator::cleanUp( $s );
2989 if ( $wgAllUnicodeFixes ) {
2990 $s = $this->transformUsingPairFile( 'normalize-ar.ser', $s );
2991 $s = $this->transformUsingPairFile( 'normalize-ml.ser', $s );
2992 }
2993
2994 return $s;
2995 }
2996
2997 /**
2998 * Transform a string using serialized data stored in the given file (which
2999 * must be in the serialized subdirectory of $IP). The file contains pairs
3000 * mapping source characters to destination characters.
3001 *
3002 * The data is cached in process memory. This will go faster if you have the
3003 * FastStringSearch extension.
3004 *
3005 * @param string $file
3006 * @param string $string
3007 *
3008 * @throws MWException
3009 * @return string
3010 */
3011 function transformUsingPairFile( $file, $string ) {
3012 if ( !isset( $this->transformData[$file] ) ) {
3013 $data = wfGetPrecompiledData( $file );
3014 if ( $data === false ) {
3015 throw new MWException( __METHOD__ . ": The transformation file $file is missing" );
3016 }
3017 $this->transformData[$file] = new ReplacementArray( $data );
3018 }
3019 return $this->transformData[$file]->replace( $string );
3020 }
3021
3022 /**
3023 * For right-to-left language support
3024 *
3025 * @return bool
3026 */
3027 function isRTL() {
3028 return self::$dataCache->getItem( $this->mCode, 'rtl' );
3029 }
3030
3031 /**
3032 * Return the correct HTML 'dir' attribute value for this language.
3033 * @return string
3034 */
3035 function getDir() {
3036 return $this->isRTL() ? 'rtl' : 'ltr';
3037 }
3038
3039 /**
3040 * Return 'left' or 'right' as appropriate alignment for line-start
3041 * for this language's text direction.
3042 *
3043 * Should be equivalent to CSS3 'start' text-align value....
3044 *
3045 * @return string
3046 */
3047 function alignStart() {
3048 return $this->isRTL() ? 'right' : 'left';
3049 }
3050
3051 /**
3052 * Return 'right' or 'left' as appropriate alignment for line-end
3053 * for this language's text direction.
3054 *
3055 * Should be equivalent to CSS3 'end' text-align value....
3056 *
3057 * @return string
3058 */
3059 function alignEnd() {
3060 return $this->isRTL() ? 'left' : 'right';
3061 }
3062
3063 /**
3064 * A hidden direction mark (LRM or RLM), depending on the language direction.
3065 * Unlike getDirMark(), this function returns the character as an HTML entity.
3066 * This function should be used when the output is guaranteed to be HTML,
3067 * because it makes the output HTML source code more readable. When
3068 * the output is plain text or can be escaped, getDirMark() should be used.
3069 *
3070 * @param bool $opposite Get the direction mark opposite to your language
3071 * @return string
3072 * @since 1.20
3073 */
3074 function getDirMarkEntity( $opposite = false ) {
3075 if ( $opposite ) {
3076 return $this->isRTL() ? '&lrm;' : '&rlm;';
3077 }
3078 return $this->isRTL() ? '&rlm;' : '&lrm;';
3079 }
3080
3081 /**
3082 * A hidden direction mark (LRM or RLM), depending on the language direction.
3083 * This function produces them as invisible Unicode characters and
3084 * the output may be hard to read and debug, so it should only be used
3085 * when the output is plain text or can be escaped. When the output is
3086 * HTML, use getDirMarkEntity() instead.
3087 *
3088 * @param bool $opposite Get the direction mark opposite to your language
3089 * @return string
3090 */
3091 function getDirMark( $opposite = false ) {
3092 $lrm = "\xE2\x80\x8E"; # LEFT-TO-RIGHT MARK, commonly abbreviated LRM
3093 $rlm = "\xE2\x80\x8F"; # RIGHT-TO-LEFT MARK, commonly abbreviated RLM
3094 if ( $opposite ) {
3095 return $this->isRTL() ? $lrm : $rlm;
3096 }
3097 return $this->isRTL() ? $rlm : $lrm;
3098 }
3099
3100 /**
3101 * @return array
3102 */
3103 function capitalizeAllNouns() {
3104 return self::$dataCache->getItem( $this->mCode, 'capitalizeAllNouns' );
3105 }
3106
3107 /**
3108 * An arrow, depending on the language direction.
3109 *
3110 * @param string $direction The direction of the arrow: forwards (default),
3111 * backwards, left, right, up, down.
3112 * @return string
3113 */
3114 function getArrow( $direction = 'forwards' ) {
3115 switch ( $direction ) {
3116 case 'forwards':
3117 return $this->isRTL() ? '←' : '→';
3118 case 'backwards':
3119 return $this->isRTL() ? '→' : '←';
3120 case 'left':
3121 return '←';
3122 case 'right':
3123 return '→';
3124 case 'up':
3125 return '↑';
3126 case 'down':
3127 return '↓';
3128 }
3129 }
3130
3131 /**
3132 * To allow "foo[[bar]]" to extend the link over the whole word "foobar"
3133 *
3134 * @return bool
3135 */
3136 function linkPrefixExtension() {
3137 return self::$dataCache->getItem( $this->mCode, 'linkPrefixExtension' );
3138 }
3139
3140 /**
3141 * Get all magic words from cache.
3142 * @return array
3143 */
3144 function getMagicWords() {
3145 return self::$dataCache->getItem( $this->mCode, 'magicWords' );
3146 }
3147
3148 /**
3149 * Run the LanguageGetMagic hook once.
3150 */
3151 protected function doMagicHook() {
3152 if ( $this->mMagicHookDone ) {
3153 return;
3154 }
3155 $this->mMagicHookDone = true;
3156 Hooks::run( 'LanguageGetMagic', [ &$this->mMagicExtensions, $this->getCode() ] );
3157 }
3158
3159 /**
3160 * Fill a MagicWord object with data from here
3161 *
3162 * @param MagicWord $mw
3163 */
3164 function getMagic( $mw ) {
3165 // Saves a function call
3166 if ( !$this->mMagicHookDone ) {
3167 $this->doMagicHook();
3168 }
3169
3170 if ( isset( $this->mMagicExtensions[$mw->mId] ) ) {
3171 $rawEntry = $this->mMagicExtensions[$mw->mId];
3172 } else {
3173 $rawEntry = self::$dataCache->getSubitem(
3174 $this->mCode, 'magicWords', $mw->mId );
3175 }
3176
3177 if ( !is_array( $rawEntry ) ) {
3178 wfWarn( "\"$rawEntry\" is not a valid magic word for \"$mw->mId\"" );
3179 } else {
3180 $mw->mCaseSensitive = $rawEntry[0];
3181 $mw->mSynonyms = array_slice( $rawEntry, 1 );
3182 }
3183 }
3184
3185 /**
3186 * Add magic words to the extension array
3187 *
3188 * @param array $newWords
3189 */
3190 function addMagicWordsByLang( $newWords ) {
3191 $fallbackChain = $this->getFallbackLanguages();
3192 $fallbackChain = array_reverse( $fallbackChain );
3193 foreach ( $fallbackChain as $code ) {
3194 if ( isset( $newWords[$code] ) ) {
3195 $this->mMagicExtensions = $newWords[$code] + $this->mMagicExtensions;
3196 }
3197 }
3198 }
3199
3200 /**
3201 * Get special page names, as an associative array
3202 * canonical name => array of valid names, including aliases
3203 * @return array
3204 */
3205 function getSpecialPageAliases() {
3206 // Cache aliases because it may be slow to load them
3207 if ( is_null( $this->mExtendedSpecialPageAliases ) ) {
3208 // Initialise array
3209 $this->mExtendedSpecialPageAliases =
3210 self::$dataCache->getItem( $this->mCode, 'specialPageAliases' );
3211 Hooks::run( 'LanguageGetSpecialPageAliases',
3212 [ &$this->mExtendedSpecialPageAliases, $this->getCode() ] );
3213 }
3214
3215 return $this->mExtendedSpecialPageAliases;
3216 }
3217
3218 /**
3219 * Italic is unsuitable for some languages
3220 *
3221 * @param string $text The text to be emphasized.
3222 * @return string
3223 */
3224 function emphasize( $text ) {
3225 return "<em>$text</em>";
3226 }
3227
3228 /**
3229 * Normally we output all numbers in plain en_US style, that is
3230 * 293,291.235 for twohundredninetythreethousand-twohundredninetyone
3231 * point twohundredthirtyfive. However this is not suitable for all
3232 * languages, some such as Bengali (bn) want ২,৯৩,২৯১.২৩৫ and others such as
3233 * Icelandic just want to use commas instead of dots, and dots instead
3234 * of commas like "293.291,235".
3235 *
3236 * An example of this function being called:
3237 * <code>
3238 * wfMessage( 'message' )->numParams( $num )->text()
3239 * </code>
3240 *
3241 * See $separatorTransformTable on MessageIs.php for
3242 * the , => . and . => , implementation.
3243 *
3244 * @todo check if it's viable to use localeconv() for the decimal separator thing.
3245 * @param int|float $number The string to be formatted, should be an integer
3246 * or a floating point number.
3247 * @param bool $nocommafy Set to true for special numbers like dates
3248 * @return string
3249 */
3250 public function formatNum( $number, $nocommafy = false ) {
3251 global $wgTranslateNumerals;
3252 if ( !$nocommafy ) {
3253 $number = $this->commafy( $number );
3254 $s = $this->separatorTransformTable();
3255 if ( $s ) {
3256 $number = strtr( $number, $s );
3257 }
3258 }
3259
3260 if ( $wgTranslateNumerals ) {
3261 $s = $this->digitTransformTable();
3262 if ( $s ) {
3263 $number = strtr( $number, $s );
3264 }
3265 }
3266
3267 return $number;
3268 }
3269
3270 /**
3271 * Front-end for non-commafied formatNum
3272 *
3273 * @param int|float $number The string to be formatted, should be an integer
3274 * or a floating point number.
3275 * @since 1.21
3276 * @return string
3277 */
3278 public function formatNumNoSeparators( $number ) {
3279 return $this->formatNum( $number, true );
3280 }
3281
3282 /**
3283 * @param string $number
3284 * @return string
3285 */
3286 public function parseFormattedNumber( $number ) {
3287 $s = $this->digitTransformTable();
3288 if ( $s ) {
3289 // eliminate empty array values such as ''. (bug 64347)
3290 $s = array_filter( $s );
3291 $number = strtr( $number, array_flip( $s ) );
3292 }
3293
3294 $s = $this->separatorTransformTable();
3295 if ( $s ) {
3296 // eliminate empty array values such as ''. (bug 64347)
3297 $s = array_filter( $s );
3298 $number = strtr( $number, array_flip( $s ) );
3299 }
3300
3301 $number = strtr( $number, [ ',' => '' ] );
3302 return $number;
3303 }
3304
3305 /**
3306 * Adds commas to a given number
3307 * @since 1.19
3308 * @param mixed $number
3309 * @return string
3310 */
3311 function commafy( $number ) {
3312 $digitGroupingPattern = $this->digitGroupingPattern();
3313 if ( $number === null ) {
3314 return '';
3315 }
3316
3317 if ( !$digitGroupingPattern || $digitGroupingPattern === "###,###,###" ) {
3318 // default grouping is at thousands, use the same for ###,###,### pattern too.
3319 return strrev( (string)preg_replace( '/(\d{3})(?=\d)(?!\d*\.)/', '$1,', strrev( $number ) ) );
3320 } else {
3321 // Ref: http://cldr.unicode.org/translation/number-patterns
3322 $sign = "";
3323 if ( intval( $number ) < 0 ) {
3324 // For negative numbers apply the algorithm like positive number and add sign.
3325 $sign = "-";
3326 $number = substr( $number, 1 );
3327 }
3328 $integerPart = [];
3329 $decimalPart = [];
3330 $numMatches = preg_match_all( "/(#+)/", $digitGroupingPattern, $matches );
3331 preg_match( "/\d+/", $number, $integerPart );
3332 preg_match( "/\.\d*/", $number, $decimalPart );
3333 $groupedNumber = ( count( $decimalPart ) > 0 ) ? $decimalPart[0] : "";
3334 if ( $groupedNumber === $number ) {
3335 // the string does not have any number part. Eg: .12345
3336 return $sign . $groupedNumber;
3337 }
3338 $start = $end = ( $integerPart ) ? strlen( $integerPart[0] ) : 0;
3339 while ( $start > 0 ) {
3340 $match = $matches[0][$numMatches - 1];
3341 $matchLen = strlen( $match );
3342 $start = $end - $matchLen;
3343 if ( $start < 0 ) {
3344 $start = 0;
3345 }
3346 $groupedNumber = substr( $number, $start, $end -$start ) . $groupedNumber;
3347 $end = $start;
3348 if ( $numMatches > 1 ) {
3349 // use the last pattern for the rest of the number
3350 $numMatches--;
3351 }
3352 if ( $start > 0 ) {
3353 $groupedNumber = "," . $groupedNumber;
3354 }
3355 }
3356 return $sign . $groupedNumber;
3357 }
3358 }
3359
3360 /**
3361 * @return string
3362 */
3363 function digitGroupingPattern() {
3364 return self::$dataCache->getItem( $this->mCode, 'digitGroupingPattern' );
3365 }
3366
3367 /**
3368 * @return array
3369 */
3370 function digitTransformTable() {
3371 return self::$dataCache->getItem( $this->mCode, 'digitTransformTable' );
3372 }
3373
3374 /**
3375 * @return array
3376 */
3377 function separatorTransformTable() {
3378 return self::$dataCache->getItem( $this->mCode, 'separatorTransformTable' );
3379 }
3380
3381 /**
3382 * Take a list of strings and build a locale-friendly comma-separated
3383 * list, using the local comma-separator message.
3384 * The last two strings are chained with an "and".
3385 * NOTE: This function will only work with standard numeric array keys (0, 1, 2…)
3386 *
3387 * @param string[] $l
3388 * @return string
3389 */
3390 function listToText( array $l ) {
3391 $m = count( $l ) - 1;
3392 if ( $m < 0 ) {
3393 return '';
3394 }
3395 if ( $m > 0 ) {
3396 $and = $this->msg( 'and' )->escaped();
3397 $space = $this->msg( 'word-separator' )->escaped();
3398 if ( $m > 1 ) {
3399 $comma = $this->msg( 'comma-separator' )->escaped();
3400 }
3401 }
3402 $s = $l[$m];
3403 for ( $i = $m - 1; $i >= 0; $i-- ) {
3404 if ( $i == $m - 1 ) {
3405 $s = $l[$i] . $and . $space . $s;
3406 } else {
3407 $s = $l[$i] . $comma . $s;
3408 }
3409 }
3410 return $s;
3411 }
3412
3413 /**
3414 * Take a list of strings and build a locale-friendly comma-separated
3415 * list, using the local comma-separator message.
3416 * @param string[] $list Array of strings to put in a comma list
3417 * @return string
3418 */
3419 function commaList( array $list ) {
3420 return implode(
3421 wfMessage( 'comma-separator' )->inLanguage( $this )->escaped(),
3422 $list
3423 );
3424 }
3425
3426 /**
3427 * Take a list of strings and build a locale-friendly semicolon-separated
3428 * list, using the local semicolon-separator message.
3429 * @param string[] $list Array of strings to put in a semicolon list
3430 * @return string
3431 */
3432 function semicolonList( array $list ) {
3433 return implode(
3434 wfMessage( 'semicolon-separator' )->inLanguage( $this )->escaped(),
3435 $list
3436 );
3437 }
3438
3439 /**
3440 * Same as commaList, but separate it with the pipe instead.
3441 * @param string[] $list Array of strings to put in a pipe list
3442 * @return string
3443 */
3444 function pipeList( array $list ) {
3445 return implode(
3446 wfMessage( 'pipe-separator' )->inLanguage( $this )->escaped(),
3447 $list
3448 );
3449 }
3450
3451 /**
3452 * Truncate a string to a specified length in bytes, appending an optional
3453 * string (e.g. for ellipses)
3454 *
3455 * The database offers limited byte lengths for some columns in the database;
3456 * multi-byte character sets mean we need to ensure that only whole characters
3457 * are included, otherwise broken characters can be passed to the user
3458 *
3459 * If $length is negative, the string will be truncated from the beginning
3460 *
3461 * @param string $string String to truncate
3462 * @param int $length Maximum length (including ellipses)
3463 * @param string $ellipsis String to append to the truncated text
3464 * @param bool $adjustLength Subtract length of ellipsis from $length.
3465 * $adjustLength was introduced in 1.18, before that behaved as if false.
3466 * @return string
3467 */
3468 function truncate( $string, $length, $ellipsis = '...', $adjustLength = true ) {
3469 # Use the localized ellipsis character
3470 if ( $ellipsis == '...' ) {
3471 $ellipsis = wfMessage( 'ellipsis' )->inLanguage( $this )->escaped();
3472 }
3473 # Check if there is no need to truncate
3474 if ( $length == 0 ) {
3475 return $ellipsis; // convention
3476 } elseif ( strlen( $string ) <= abs( $length ) ) {
3477 return $string; // no need to truncate
3478 }
3479 $stringOriginal = $string;
3480 # If ellipsis length is >= $length then we can't apply $adjustLength
3481 if ( $adjustLength && strlen( $ellipsis ) >= abs( $length ) ) {
3482 $string = $ellipsis; // this can be slightly unexpected
3483 # Otherwise, truncate and add ellipsis...
3484 } else {
3485 $eLength = $adjustLength ? strlen( $ellipsis ) : 0;
3486 if ( $length > 0 ) {
3487 $length -= $eLength;
3488 $string = substr( $string, 0, $length ); // xyz...
3489 $string = $this->removeBadCharLast( $string );
3490 $string = rtrim( $string );
3491 $string = $string . $ellipsis;
3492 } else {
3493 $length += $eLength;
3494 $string = substr( $string, $length ); // ...xyz
3495 $string = $this->removeBadCharFirst( $string );
3496 $string = ltrim( $string );
3497 $string = $ellipsis . $string;
3498 }
3499 }
3500 # Do not truncate if the ellipsis makes the string longer/equal (bug 22181).
3501 # This check is *not* redundant if $adjustLength, due to the single case where
3502 # LEN($ellipsis) > ABS($limit arg); $stringOriginal could be shorter than $string.
3503 if ( strlen( $string ) < strlen( $stringOriginal ) ) {
3504 return $string;
3505 } else {
3506 return $stringOriginal;
3507 }
3508 }
3509
3510 /**
3511 * Remove bytes that represent an incomplete Unicode character
3512 * at the end of string (e.g. bytes of the char are missing)
3513 *
3514 * @param string $string
3515 * @return string
3516 */
3517 protected function removeBadCharLast( $string ) {
3518 if ( $string != '' ) {
3519 $char = ord( $string[strlen( $string ) - 1] );
3520 $m = [];
3521 if ( $char >= 0xc0 ) {
3522 # We got the first byte only of a multibyte char; remove it.
3523 $string = substr( $string, 0, -1 );
3524 } elseif ( $char >= 0x80 &&
3525 // Use the /s modifier (PCRE_DOTALL) so (.*) also matches newlines
3526 preg_match( '/^(.*)(?:[\xe0-\xef][\x80-\xbf]|' .
3527 '[\xf0-\xf7][\x80-\xbf]{1,2})$/s', $string, $m )
3528 ) {
3529 # We chopped in the middle of a character; remove it
3530 $string = $m[1];
3531 }
3532 }
3533 return $string;
3534 }
3535
3536 /**
3537 * Remove bytes that represent an incomplete Unicode character
3538 * at the start of string (e.g. bytes of the char are missing)
3539 *
3540 * @param string $string
3541 * @return string
3542 */
3543 protected function removeBadCharFirst( $string ) {
3544 if ( $string != '' ) {
3545 $char = ord( $string[0] );
3546 if ( $char >= 0x80 && $char < 0xc0 ) {
3547 # We chopped in the middle of a character; remove the whole thing
3548 $string = preg_replace( '/^[\x80-\xbf]+/', '', $string );
3549 }
3550 }
3551 return $string;
3552 }
3553
3554 /**
3555 * Truncate a string of valid HTML to a specified length in bytes,
3556 * appending an optional string (e.g. for ellipses), and return valid HTML
3557 *
3558 * This is only intended for styled/linked text, such as HTML with
3559 * tags like <span> and <a>, were the tags are self-contained (valid HTML).
3560 * Also, this will not detect things like "display:none" CSS.
3561 *
3562 * Note: since 1.18 you do not need to leave extra room in $length for ellipses.
3563 *
3564 * @param string $text HTML string to truncate
3565 * @param int $length (zero/positive) Maximum length (including ellipses)
3566 * @param string $ellipsis String to append to the truncated text
3567 * @return string
3568 */
3569 function truncateHtml( $text, $length, $ellipsis = '...' ) {
3570 # Use the localized ellipsis character
3571 if ( $ellipsis == '...' ) {
3572 $ellipsis = wfMessage( 'ellipsis' )->inLanguage( $this )->escaped();
3573 }
3574 # Check if there is clearly no need to truncate
3575 if ( $length <= 0 ) {
3576 return $ellipsis; // no text shown, nothing to format (convention)
3577 } elseif ( strlen( $text ) <= $length ) {
3578 return $text; // string short enough even *with* HTML (short-circuit)
3579 }
3580
3581 $dispLen = 0; // innerHTML legth so far
3582 $testingEllipsis = false; // checking if ellipses will make string longer/equal?
3583 $tagType = 0; // 0-open, 1-close
3584 $bracketState = 0; // 1-tag start, 2-tag name, 0-neither
3585 $entityState = 0; // 0-not entity, 1-entity
3586 $tag = $ret = ''; // accumulated tag name, accumulated result string
3587 $openTags = []; // open tag stack
3588 $maybeState = null; // possible truncation state
3589
3590 $textLen = strlen( $text );
3591 $neLength = max( 0, $length - strlen( $ellipsis ) ); // non-ellipsis len if truncated
3592 for ( $pos = 0; true; ++$pos ) {
3593 # Consider truncation once the display length has reached the maximim.
3594 # We check if $dispLen > 0 to grab tags for the $neLength = 0 case.
3595 # Check that we're not in the middle of a bracket/entity...
3596 if ( $dispLen && $dispLen >= $neLength && $bracketState == 0 && !$entityState ) {
3597 if ( !$testingEllipsis ) {
3598 $testingEllipsis = true;
3599 # Save where we are; we will truncate here unless there turn out to
3600 # be so few remaining characters that truncation is not necessary.
3601 if ( !$maybeState ) { // already saved? ($neLength = 0 case)
3602 $maybeState = [ $ret, $openTags ]; // save state
3603 }
3604 } elseif ( $dispLen > $length && $dispLen > strlen( $ellipsis ) ) {
3605 # String in fact does need truncation, the truncation point was OK.
3606 list( $ret, $openTags ) = $maybeState; // reload state
3607 $ret = $this->removeBadCharLast( $ret ); // multi-byte char fix
3608 $ret .= $ellipsis; // add ellipsis
3609 break;
3610 }
3611 }
3612 if ( $pos >= $textLen ) {
3613 break; // extra iteration just for above checks
3614 }
3615
3616 # Read the next char...
3617 $ch = $text[$pos];
3618 $lastCh = $pos ? $text[$pos - 1] : '';
3619 $ret .= $ch; // add to result string
3620 if ( $ch == '<' ) {
3621 $this->truncate_endBracket( $tag, $tagType, $lastCh, $openTags ); // for bad HTML
3622 $entityState = 0; // for bad HTML
3623 $bracketState = 1; // tag started (checking for backslash)
3624 } elseif ( $ch == '>' ) {
3625 $this->truncate_endBracket( $tag, $tagType, $lastCh, $openTags );
3626 $entityState = 0; // for bad HTML
3627 $bracketState = 0; // out of brackets
3628 } elseif ( $bracketState == 1 ) {
3629 if ( $ch == '/' ) {
3630 $tagType = 1; // close tag (e.g. "</span>")
3631 } else {
3632 $tagType = 0; // open tag (e.g. "<span>")
3633 $tag .= $ch;
3634 }
3635 $bracketState = 2; // building tag name
3636 } elseif ( $bracketState == 2 ) {
3637 if ( $ch != ' ' ) {
3638 $tag .= $ch;
3639 } else {
3640 // Name found (e.g. "<a href=..."), add on tag attributes...
3641 $pos += $this->truncate_skip( $ret, $text, "<>", $pos + 1 );
3642 }
3643 } elseif ( $bracketState == 0 ) {
3644 if ( $entityState ) {
3645 if ( $ch == ';' ) {
3646 $entityState = 0;
3647 $dispLen++; // entity is one displayed char
3648 }
3649 } else {
3650 if ( $neLength == 0 && !$maybeState ) {
3651 // Save state without $ch. We want to *hit* the first
3652 // display char (to get tags) but not *use* it if truncating.
3653 $maybeState = [ substr( $ret, 0, -1 ), $openTags ];
3654 }
3655 if ( $ch == '&' ) {
3656 $entityState = 1; // entity found, (e.g. "&#160;")
3657 } else {
3658 $dispLen++; // this char is displayed
3659 // Add the next $max display text chars after this in one swoop...
3660 $max = ( $testingEllipsis ? $length : $neLength ) - $dispLen;
3661 $skipped = $this->truncate_skip( $ret, $text, "<>&", $pos + 1, $max );
3662 $dispLen += $skipped;
3663 $pos += $skipped;
3664 }
3665 }
3666 }
3667 }
3668 // Close the last tag if left unclosed by bad HTML
3669 $this->truncate_endBracket( $tag, $text[$textLen - 1], $tagType, $openTags );
3670 while ( count( $openTags ) > 0 ) {
3671 $ret .= '</' . array_pop( $openTags ) . '>'; // close open tags
3672 }
3673 return $ret;
3674 }
3675
3676 /**
3677 * truncateHtml() helper function
3678 * like strcspn() but adds the skipped chars to $ret
3679 *
3680 * @param string $ret
3681 * @param string $text
3682 * @param string $search
3683 * @param int $start
3684 * @param null|int $len
3685 * @return int
3686 */
3687 private function truncate_skip( &$ret, $text, $search, $start, $len = null ) {
3688 if ( $len === null ) {
3689 $len = -1; // -1 means "no limit" for strcspn
3690 } elseif ( $len < 0 ) {
3691 $len = 0; // sanity
3692 }
3693 $skipCount = 0;
3694 if ( $start < strlen( $text ) ) {
3695 $skipCount = strcspn( $text, $search, $start, $len );
3696 $ret .= substr( $text, $start, $skipCount );
3697 }
3698 return $skipCount;
3699 }
3700
3701 /**
3702 * truncateHtml() helper function
3703 * (a) push or pop $tag from $openTags as needed
3704 * (b) clear $tag value
3705 * @param string &$tag Current HTML tag name we are looking at
3706 * @param int $tagType (0-open tag, 1-close tag)
3707 * @param string $lastCh Character before the '>' that ended this tag
3708 * @param array &$openTags Open tag stack (not accounting for $tag)
3709 */
3710 private function truncate_endBracket( &$tag, $tagType, $lastCh, &$openTags ) {
3711 $tag = ltrim( $tag );
3712 if ( $tag != '' ) {
3713 if ( $tagType == 0 && $lastCh != '/' ) {
3714 $openTags[] = $tag; // tag opened (didn't close itself)
3715 } elseif ( $tagType == 1 ) {
3716 if ( $openTags && $tag == $openTags[count( $openTags ) - 1] ) {
3717 array_pop( $openTags ); // tag closed
3718 }
3719 }
3720 $tag = '';
3721 }
3722 }
3723
3724 /**
3725 * Grammatical transformations, needed for inflected languages
3726 * Invoked by putting {{grammar:case|word}} in a message
3727 *
3728 * @param string $word
3729 * @param string $case
3730 * @return string
3731 */
3732 function convertGrammar( $word, $case ) {
3733 global $wgGrammarForms;
3734 if ( isset( $wgGrammarForms[$this->getCode()][$case][$word] ) ) {
3735 return $wgGrammarForms[$this->getCode()][$case][$word];
3736 }
3737
3738 return $word;
3739 }
3740
3741 /**
3742 * Get the grammar forms for the content language
3743 * @return array Array of grammar forms
3744 * @since 1.20
3745 */
3746 function getGrammarForms() {
3747 global $wgGrammarForms;
3748 if ( isset( $wgGrammarForms[$this->getCode()] )
3749 && is_array( $wgGrammarForms[$this->getCode()] )
3750 ) {
3751 return $wgGrammarForms[$this->getCode()];
3752 }
3753
3754 return [];
3755 }
3756
3757 /**
3758 * Get the grammar transformations data for the language.
3759 * Used like grammar forms, with {{GRAMMAR}} and cases,
3760 * but uses pairs of regexes and replacements instead of code.
3761 *
3762 * @return array[] Array of grammar transformations.
3763 * @throws MWException
3764 * @since 1.28
3765 */
3766 public function getGrammarTransformations() {
3767 $languageCode = $this->getCode();
3768
3769 if ( self::$grammarTransformations === null ) {
3770 self::$grammarTransformations = new MapCacheLRU( 10 );
3771 }
3772
3773 if ( self::$grammarTransformations->has( $languageCode ) ) {
3774 return self::$grammarTransformations->get( $languageCode );
3775 }
3776
3777 $data = [];
3778
3779 $grammarDataFile = __DIR__ . "/data/grammarTransformations/$languageCode.json";
3780 if ( is_readable( $grammarDataFile ) ) {
3781 $data = FormatJson::decode(
3782 file_get_contents( $grammarDataFile ),
3783 true
3784 );
3785
3786 if ( $data === null ) {
3787 throw new MWException( "Invalid grammar data for \"$languageCode\"." );
3788 }
3789
3790 self::$grammarTransformations->set( $languageCode, $data );
3791 }
3792
3793 return $data;
3794 }
3795
3796 /**
3797 * Provides an alternative text depending on specified gender.
3798 * Usage {{gender:username|masculine|feminine|unknown}}.
3799 * username is optional, in which case the gender of current user is used,
3800 * but only in (some) interface messages; otherwise default gender is used.
3801 *
3802 * If no forms are given, an empty string is returned. If only one form is
3803 * given, it will be returned unconditionally. These details are implied by
3804 * the caller and cannot be overridden in subclasses.
3805 *
3806 * If three forms are given, the default is to use the third (unknown) form.
3807 * If fewer than three forms are given, the default is to use the first (masculine) form.
3808 * These details can be overridden in subclasses.
3809 *
3810 * @param string $gender
3811 * @param array $forms
3812 *
3813 * @return string
3814 */
3815 function gender( $gender, $forms ) {
3816 if ( !count( $forms ) ) {
3817 return '';
3818 }
3819 $forms = $this->preConvertPlural( $forms, 2 );
3820 if ( $gender === 'male' ) {
3821 return $forms[0];
3822 }
3823 if ( $gender === 'female' ) {
3824 return $forms[1];
3825 }
3826 return isset( $forms[2] ) ? $forms[2] : $forms[0];
3827 }
3828
3829 /**
3830 * Plural form transformations, needed for some languages.
3831 * For example, there are 3 form of plural in Russian and Polish,
3832 * depending on "count mod 10". See [[w:Plural]]
3833 * For English it is pretty simple.
3834 *
3835 * Invoked by putting {{plural:count|wordform1|wordform2}}
3836 * or {{plural:count|wordform1|wordform2|wordform3}}
3837 *
3838 * Example: {{plural:{{NUMBEROFARTICLES}}|article|articles}}
3839 *
3840 * @param int $count Non-localized number
3841 * @param array $forms Different plural forms
3842 * @return string Correct form of plural for $count in this language
3843 */
3844 function convertPlural( $count, $forms ) {
3845 // Handle explicit n=pluralform cases
3846 $forms = $this->handleExplicitPluralForms( $count, $forms );
3847 if ( is_string( $forms ) ) {
3848 return $forms;
3849 }
3850 if ( !count( $forms ) ) {
3851 return '';
3852 }
3853
3854 $pluralForm = $this->getPluralRuleIndexNumber( $count );
3855 $pluralForm = min( $pluralForm, count( $forms ) - 1 );
3856 return $forms[$pluralForm];
3857 }
3858
3859 /**
3860 * Handles explicit plural forms for Language::convertPlural()
3861 *
3862 * In {{PLURAL:$1|0=nothing|one|many}}, 0=nothing will be returned if $1 equals zero.
3863 * If an explicitly defined plural form matches the $count, then
3864 * string value returned, otherwise array returned for further consideration
3865 * by CLDR rules or overridden convertPlural().
3866 *
3867 * @since 1.23
3868 *
3869 * @param int $count Non-localized number
3870 * @param array $forms Different plural forms
3871 *
3872 * @return array|string
3873 */
3874 protected function handleExplicitPluralForms( $count, array $forms ) {
3875 foreach ( $forms as $index => $form ) {
3876 if ( preg_match( '/\d+=/i', $form ) ) {
3877 $pos = strpos( $form, '=' );
3878 if ( substr( $form, 0, $pos ) === (string)$count ) {
3879 return substr( $form, $pos + 1 );
3880 }
3881 unset( $forms[$index] );
3882 }
3883 }
3884 return array_values( $forms );
3885 }
3886
3887 /**
3888 * Checks that convertPlural was given an array and pads it to requested
3889 * amount of forms by copying the last one.
3890 *
3891 * @param array $forms Array of forms given to convertPlural
3892 * @param int $count How many forms should there be at least
3893 * @return array Padded array of forms or an exception if not an array
3894 */
3895 protected function preConvertPlural( /* Array */ $forms, $count ) {
3896 while ( count( $forms ) < $count ) {
3897 $forms[] = $forms[count( $forms ) - 1];
3898 }
3899 return $forms;
3900 }
3901
3902 /**
3903 * Wraps argument with unicode control characters for directionality safety
3904 *
3905 * This solves the problem where directionality-neutral characters at the edge of
3906 * the argument string get interpreted with the wrong directionality from the
3907 * enclosing context, giving renderings that look corrupted like "(Ben_(WMF".
3908 *
3909 * The wrapping is LRE...PDF or RLE...PDF, depending on the detected
3910 * directionality of the argument string, using the BIDI algorithm's own "First
3911 * strong directional codepoint" rule. Essentially, this works round the fact that
3912 * there is no embedding equivalent of U+2068 FSI (isolation with heuristic
3913 * direction inference). The latter is cleaner but still not widely supported.
3914 *
3915 * @param string $text Text to wrap
3916 * @return string Text, wrapped in LRE...PDF or RLE...PDF or nothing
3917 */
3918 public function embedBidi( $text = '' ) {
3919 $dir = Language::strongDirFromContent( $text );
3920 if ( $dir === 'ltr' ) {
3921 // Wrap in LEFT-TO-RIGHT EMBEDDING ... POP DIRECTIONAL FORMATTING
3922 return self::$lre . $text . self::$pdf;
3923 }
3924 if ( $dir === 'rtl' ) {
3925 // Wrap in RIGHT-TO-LEFT EMBEDDING ... POP DIRECTIONAL FORMATTING
3926 return self::$rle . $text . self::$pdf;
3927 }
3928 // No strong directionality: do not wrap
3929 return $text;
3930 }
3931
3932 /**
3933 * @todo Maybe translate block durations. Note that this function is somewhat misnamed: it
3934 * deals with translating the *duration* ("1 week", "4 days", etc), not the expiry time
3935 * (which is an absolute timestamp). Please note: do NOT add this blindly, as it is used
3936 * on old expiry lengths recorded in log entries. You'd need to provide the start date to
3937 * match up with it.
3938 *
3939 * @param string $str The validated block duration in English
3940 * @param User $user User object to use timezone from or null for $wgUser
3941 * @return string Somehow translated block duration
3942 * @see LanguageFi.php for example implementation
3943 */
3944 function translateBlockExpiry( $str, User $user = null ) {
3945 $duration = SpecialBlock::getSuggestedDurations( $this );
3946 foreach ( $duration as $show => $value ) {
3947 if ( strcmp( $str, $value ) == 0 ) {
3948 return htmlspecialchars( trim( $show ) );
3949 }
3950 }
3951
3952 if ( wfIsInfinity( $str ) ) {
3953 foreach ( $duration as $show => $value ) {
3954 if ( wfIsInfinity( $value ) ) {
3955 return htmlspecialchars( trim( $show ) );
3956 }
3957 }
3958 }
3959
3960 // If all else fails, return a standard duration or timestamp description.
3961 $time = strtotime( $str, 0 );
3962 if ( $time === false ) { // Unknown format. Return it as-is in case.
3963 return $str;
3964 } elseif ( $time !== strtotime( $str, 1 ) ) { // It's a relative timestamp.
3965 // $time is relative to 0 so it's a duration length.
3966 return $this->formatDuration( $time );
3967 } else { // It's an absolute timestamp.
3968 if ( $time === 0 ) {
3969 // wfTimestamp() handles 0 as current time instead of epoch.
3970 $time = '19700101000000';
3971 }
3972 if ( $user ) {
3973 return $this->userTimeAndDate( $time, $user );
3974 }
3975 return $this->timeanddate( $time );
3976 }
3977 }
3978
3979 /**
3980 * languages like Chinese need to be segmented in order for the diff
3981 * to be of any use
3982 *
3983 * @param string $text
3984 * @return string
3985 */
3986 public function segmentForDiff( $text ) {
3987 return $text;
3988 }
3989
3990 /**
3991 * and unsegment to show the result
3992 *
3993 * @param string $text
3994 * @return string
3995 */
3996 public function unsegmentForDiff( $text ) {
3997 return $text;
3998 }
3999
4000 /**
4001 * Return the LanguageConverter used in the Language
4002 *
4003 * @since 1.19
4004 * @return LanguageConverter
4005 */
4006 public function getConverter() {
4007 return $this->mConverter;
4008 }
4009
4010 /**
4011 * convert text to all supported variants
4012 *
4013 * @param string $text
4014 * @return array
4015 */
4016 public function autoConvertToAllVariants( $text ) {
4017 return $this->mConverter->autoConvertToAllVariants( $text );
4018 }
4019
4020 /**
4021 * convert text to different variants of a language.
4022 *
4023 * @param string $text
4024 * @return string
4025 */
4026 public function convert( $text ) {
4027 return $this->mConverter->convert( $text );
4028 }
4029
4030 /**
4031 * Convert a Title object to a string in the preferred variant
4032 *
4033 * @param Title $title
4034 * @return string
4035 */
4036 public function convertTitle( $title ) {
4037 return $this->mConverter->convertTitle( $title );
4038 }
4039
4040 /**
4041 * Convert a namespace index to a string in the preferred variant
4042 *
4043 * @param int $ns
4044 * @return string
4045 */
4046 public function convertNamespace( $ns ) {
4047 return $this->mConverter->convertNamespace( $ns );
4048 }
4049
4050 /**
4051 * Check if this is a language with variants
4052 *
4053 * @return bool
4054 */
4055 public function hasVariants() {
4056 return count( $this->getVariants() ) > 1;
4057 }
4058
4059 /**
4060 * Check if the language has the specific variant
4061 *
4062 * @since 1.19
4063 * @param string $variant
4064 * @return bool
4065 */
4066 public function hasVariant( $variant ) {
4067 return (bool)$this->mConverter->validateVariant( $variant );
4068 }
4069
4070 /**
4071 * Perform output conversion on a string, and encode for safe HTML output.
4072 * @param string $text Text to be converted
4073 * @param bool $isTitle Whether this conversion is for the article title
4074 * @return string
4075 * @todo this should get integrated somewhere sane
4076 */
4077 public function convertHtml( $text, $isTitle = false ) {
4078 return htmlspecialchars( $this->convert( $text, $isTitle ) );
4079 }
4080
4081 /**
4082 * @param string $key
4083 * @return string
4084 */
4085 public function convertCategoryKey( $key ) {
4086 return $this->mConverter->convertCategoryKey( $key );
4087 }
4088
4089 /**
4090 * Get the list of variants supported by this language
4091 * see sample implementation in LanguageZh.php
4092 *
4093 * @return array An array of language codes
4094 */
4095 public function getVariants() {
4096 return $this->mConverter->getVariants();
4097 }
4098
4099 /**
4100 * @return string
4101 */
4102 public function getPreferredVariant() {
4103 return $this->mConverter->getPreferredVariant();
4104 }
4105
4106 /**
4107 * @return string
4108 */
4109 public function getDefaultVariant() {
4110 return $this->mConverter->getDefaultVariant();
4111 }
4112
4113 /**
4114 * @return string
4115 */
4116 public function getURLVariant() {
4117 return $this->mConverter->getURLVariant();
4118 }
4119
4120 /**
4121 * If a language supports multiple variants, it is
4122 * possible that non-existing link in one variant
4123 * actually exists in another variant. this function
4124 * tries to find it. See e.g. LanguageZh.php
4125 * The input parameters may be modified upon return
4126 *
4127 * @param string &$link The name of the link
4128 * @param Title &$nt The title object of the link
4129 * @param bool $ignoreOtherCond To disable other conditions when
4130 * we need to transclude a template or update a category's link
4131 */
4132 public function findVariantLink( &$link, &$nt, $ignoreOtherCond = false ) {
4133 $this->mConverter->findVariantLink( $link, $nt, $ignoreOtherCond );
4134 }
4135
4136 /**
4137 * returns language specific options used by User::getPageRenderHash()
4138 * for example, the preferred language variant
4139 *
4140 * @return string
4141 */
4142 function getExtraHashOptions() {
4143 return $this->mConverter->getExtraHashOptions();
4144 }
4145
4146 /**
4147 * For languages that support multiple variants, the title of an
4148 * article may be displayed differently in different variants. this
4149 * function returns the apporiate title defined in the body of the article.
4150 *
4151 * @return string
4152 */
4153 public function getParsedTitle() {
4154 return $this->mConverter->getParsedTitle();
4155 }
4156
4157 /**
4158 * Refresh the cache of conversion tables when
4159 * MediaWiki:Conversiontable* is updated.
4160 *
4161 * @param Title $title The Title of the page being updated
4162 */
4163 public function updateConversionTable( Title $title ) {
4164 $this->mConverter->updateConversionTable( $title );
4165 }
4166
4167 /**
4168 * Prepare external link text for conversion. When the text is
4169 * a URL, it shouldn't be converted, and it'll be wrapped in
4170 * the "raw" tag (-{R| }-) to prevent conversion.
4171 *
4172 * This function is called "markNoConversion" for historical
4173 * reasons.
4174 *
4175 * @param string $text Text to be used for external link
4176 * @param bool $noParse Wrap it without confirming it's a real URL first
4177 * @return string The tagged text
4178 */
4179 public function markNoConversion( $text, $noParse = false ) {
4180 // Excluding protocal-relative URLs may avoid many false positives.
4181 if ( $noParse || preg_match( '/^(?:' . wfUrlProtocolsWithoutProtRel() . ')/', $text ) ) {
4182 return $this->mConverter->markNoConversion( $text );
4183 } else {
4184 return $text;
4185 }
4186 }
4187
4188 /**
4189 * A regular expression to match legal word-trailing characters
4190 * which should be merged onto a link of the form [[foo]]bar.
4191 *
4192 * @return string
4193 */
4194 public function linkTrail() {
4195 return self::$dataCache->getItem( $this->mCode, 'linkTrail' );
4196 }
4197
4198 /**
4199 * A regular expression character set to match legal word-prefixing
4200 * characters which should be merged onto a link of the form foo[[bar]].
4201 *
4202 * @return string
4203 */
4204 public function linkPrefixCharset() {
4205 return self::$dataCache->getItem( $this->mCode, 'linkPrefixCharset' );
4206 }
4207
4208 /**
4209 * Get the "parent" language which has a converter to convert a "compatible" language
4210 * (in another variant) to this language (eg. zh for zh-cn, but not en for en-gb).
4211 *
4212 * @return Language|null
4213 * @since 1.22
4214 */
4215 public function getParentLanguage() {
4216 if ( $this->mParentLanguage !== false ) {
4217 return $this->mParentLanguage;
4218 }
4219
4220 $code = explode( '-', $this->getCode() )[0];
4221 if ( !in_array( $code, LanguageConverter::$languagesWithVariants ) ) {
4222 $this->mParentLanguage = null;
4223 return null;
4224 }
4225 $lang = Language::factory( $code );
4226 if ( !$lang->hasVariant( $this->getCode() ) ) {
4227 $this->mParentLanguage = null;
4228 return null;
4229 }
4230
4231 $this->mParentLanguage = $lang;
4232 return $lang;
4233 }
4234
4235 /**
4236 * Compare with an other language object
4237 *
4238 * @since 1.28
4239 * @param Language $lang
4240 * @return boolean
4241 */
4242 public function equals( Language $lang ) {
4243 return $lang->getCode() === $this->mCode;
4244 }
4245
4246 /**
4247 * Get the internal language code for this language object
4248 *
4249 * NOTE: The return value of this function is NOT HTML-safe and must be escaped with
4250 * htmlspecialchars() or similar
4251 *
4252 * @return string
4253 */
4254 public function getCode() {
4255 return $this->mCode;
4256 }
4257
4258 /**
4259 * Get the code in BCP 47 format which we can use
4260 * inside of html lang="" tags.
4261 *
4262 * NOTE: The return value of this function is NOT HTML-safe and must be escaped with
4263 * htmlspecialchars() or similar.
4264 *
4265 * @since 1.19
4266 * @return string
4267 */
4268 public function getHtmlCode() {
4269 if ( is_null( $this->mHtmlCode ) ) {
4270 $this->mHtmlCode = wfBCP47( $this->getCode() );
4271 }
4272 return $this->mHtmlCode;
4273 }
4274
4275 /**
4276 * @param string $code
4277 */
4278 public function setCode( $code ) {
4279 $this->mCode = $code;
4280 // Ensure we don't leave incorrect cached data lying around
4281 $this->mHtmlCode = null;
4282 $this->mParentLanguage = false;
4283 }
4284
4285 /**
4286 * Get the language code from a file name. Inverse of getFileName()
4287 * @param string $filename $prefix . $languageCode . $suffix
4288 * @param string $prefix Prefix before the language code
4289 * @param string $suffix Suffix after the language code
4290 * @return string Language code, or false if $prefix or $suffix isn't found
4291 */
4292 public static function getCodeFromFileName( $filename, $prefix = 'Language', $suffix = '.php' ) {
4293 $m = null;
4294 preg_match( '/' . preg_quote( $prefix, '/' ) . '([A-Z][a-z_]+)' .
4295 preg_quote( $suffix, '/' ) . '/', $filename, $m );
4296 if ( !count( $m ) ) {
4297 return false;
4298 }
4299 return str_replace( '_', '-', strtolower( $m[1] ) );
4300 }
4301
4302 /**
4303 * @param string $code
4304 * @return string Name of the language class
4305 */
4306 public static function classFromCode( $code ) {
4307 if ( $code == 'en' ) {
4308 return 'Language';
4309 } else {
4310 return 'Language' . str_replace( '-', '_', ucfirst( $code ) );
4311 }
4312 }
4313
4314 /**
4315 * Get the name of a file for a certain language code
4316 * @param string $prefix Prepend this to the filename
4317 * @param string $code Language code
4318 * @param string $suffix Append this to the filename
4319 * @throws MWException
4320 * @return string $prefix . $mangledCode . $suffix
4321 */
4322 public static function getFileName( $prefix = 'Language', $code, $suffix = '.php' ) {
4323 if ( !self::isValidBuiltInCode( $code ) ) {
4324 throw new MWException( "Invalid language code \"$code\"" );
4325 }
4326
4327 return $prefix . str_replace( '-', '_', ucfirst( $code ) ) . $suffix;
4328 }
4329
4330 /**
4331 * @param string $code
4332 * @return string
4333 */
4334 public static function getMessagesFileName( $code ) {
4335 global $IP;
4336 $file = self::getFileName( "$IP/languages/messages/Messages", $code, '.php' );
4337 Hooks::run( 'Language::getMessagesFileName', [ $code, &$file ] );
4338 return $file;
4339 }
4340
4341 /**
4342 * @param string $code
4343 * @return string
4344 * @throws MWException
4345 * @since 1.23
4346 */
4347 public static function getJsonMessagesFileName( $code ) {
4348 global $IP;
4349
4350 if ( !self::isValidBuiltInCode( $code ) ) {
4351 throw new MWException( "Invalid language code \"$code\"" );
4352 }
4353
4354 return "$IP/languages/i18n/$code.json";
4355 }
4356
4357 /**
4358 * Get the first fallback for a given language.
4359 *
4360 * @param string $code
4361 *
4362 * @return bool|string
4363 */
4364 public static function getFallbackFor( $code ) {
4365 $fallbacks = self::getFallbacksFor( $code );
4366 if ( $fallbacks ) {
4367 return $fallbacks[0];
4368 }
4369 return false;
4370 }
4371
4372 /**
4373 * Get the ordered list of fallback languages.
4374 *
4375 * @since 1.19
4376 * @param string $code Language code
4377 * @return array Non-empty array, ending in "en"
4378 */
4379 public static function getFallbacksFor( $code ) {
4380 if ( $code === 'en' || !Language::isValidBuiltInCode( $code ) ) {
4381 return [];
4382 }
4383 // For unknown languages, fallbackSequence returns an empty array,
4384 // hardcode fallback to 'en' in that case.
4385 return self::getLocalisationCache()->getItem( $code, 'fallbackSequence' ) ?: [ 'en' ];
4386 }
4387
4388 /**
4389 * Get the ordered list of fallback languages, ending with the fallback
4390 * language chain for the site language.
4391 *
4392 * @since 1.22
4393 * @param string $code Language code
4394 * @return array Array( fallbacks, site fallbacks )
4395 */
4396 public static function getFallbacksIncludingSiteLanguage( $code ) {
4397 global $wgLanguageCode;
4398
4399 // Usually, we will only store a tiny number of fallback chains, so we
4400 // keep them in static memory.
4401 $cacheKey = "{$code}-{$wgLanguageCode}";
4402
4403 if ( !array_key_exists( $cacheKey, self::$fallbackLanguageCache ) ) {
4404 $fallbacks = self::getFallbacksFor( $code );
4405
4406 // Append the site's fallback chain, including the site language itself
4407 $siteFallbacks = self::getFallbacksFor( $wgLanguageCode );
4408 array_unshift( $siteFallbacks, $wgLanguageCode );
4409
4410 // Eliminate any languages already included in the chain
4411 $siteFallbacks = array_diff( $siteFallbacks, $fallbacks );
4412
4413 self::$fallbackLanguageCache[$cacheKey] = [ $fallbacks, $siteFallbacks ];
4414 }
4415 return self::$fallbackLanguageCache[$cacheKey];
4416 }
4417
4418 /**
4419 * Get all messages for a given language
4420 * WARNING: this may take a long time. If you just need all message *keys*
4421 * but need the *contents* of only a few messages, consider using getMessageKeysFor().
4422 *
4423 * @param string $code
4424 *
4425 * @return array
4426 */
4427 public static function getMessagesFor( $code ) {
4428 return self::getLocalisationCache()->getItem( $code, 'messages' );
4429 }
4430
4431 /**
4432 * Get a message for a given language
4433 *
4434 * @param string $key
4435 * @param string $code
4436 *
4437 * @return string
4438 */
4439 public static function getMessageFor( $key, $code ) {
4440 return self::getLocalisationCache()->getSubitem( $code, 'messages', $key );
4441 }
4442
4443 /**
4444 * Get all message keys for a given language. This is a faster alternative to
4445 * array_keys( Language::getMessagesFor( $code ) )
4446 *
4447 * @since 1.19
4448 * @param string $code Language code
4449 * @return array Array of message keys (strings)
4450 */
4451 public static function getMessageKeysFor( $code ) {
4452 return self::getLocalisationCache()->getSubitemList( $code, 'messages' );
4453 }
4454
4455 /**
4456 * @param string $talk
4457 * @return mixed
4458 */
4459 function fixVariableInNamespace( $talk ) {
4460 if ( strpos( $talk, '$1' ) === false ) {
4461 return $talk;
4462 }
4463
4464 global $wgMetaNamespace;
4465 $talk = str_replace( '$1', $wgMetaNamespace, $talk );
4466
4467 # Allow grammar transformations
4468 # Allowing full message-style parsing would make simple requests
4469 # such as action=raw much more expensive than they need to be.
4470 # This will hopefully cover most cases.
4471 $talk = preg_replace_callback( '/{{grammar:(.*?)\|(.*?)}}/i',
4472 [ &$this, 'replaceGrammarInNamespace' ], $talk );
4473 return str_replace( ' ', '_', $talk );
4474 }
4475
4476 /**
4477 * @param string $m
4478 * @return string
4479 */
4480 function replaceGrammarInNamespace( $m ) {
4481 return $this->convertGrammar( trim( $m[2] ), trim( $m[1] ) );
4482 }
4483
4484 /**
4485 * Decode an expiry (block, protection, etc) which has come from the DB
4486 *
4487 * @param string $expiry Database expiry String
4488 * @param bool|int $format True to process using language functions, or TS_ constant
4489 * to return the expiry in a given timestamp
4490 * @param string $infinity If $format is not true, use this string for infinite expiry
4491 * @return string
4492 * @since 1.18
4493 */
4494 public function formatExpiry( $expiry, $format = true, $infinity = 'infinity' ) {
4495 static $dbInfinity;
4496 if ( $dbInfinity === null ) {
4497 $dbInfinity = wfGetDB( DB_SLAVE )->getInfinity();
4498 }
4499
4500 if ( $expiry == '' || $expiry === 'infinity' || $expiry == $dbInfinity ) {
4501 return $format === true
4502 ? $this->getMessageFromDB( 'infiniteblock' )
4503 : $infinity;
4504 } else {
4505 return $format === true
4506 ? $this->timeanddate( $expiry, /* User preference timezone */ true )
4507 : wfTimestamp( $format, $expiry );
4508 }
4509 }
4510
4511 /**
4512 * Formats a time given in seconds into a string representation of that time.
4513 *
4514 * @param int|float $seconds
4515 * @param array $format An optional argument that formats the returned string in different ways:
4516 * If $format['avoid'] === 'avoidseconds': don't show seconds if $seconds >= 1 hour,
4517 * If $format['avoid'] === 'avoidminutes': don't show seconds/minutes if $seconds > 48 hours,
4518 * If $format['noabbrevs'] is true: use 'seconds' and friends instead of 'seconds-abbrev'
4519 * and friends.
4520 * @note For backwards compatibility, $format may also be one of the strings 'avoidseconds'
4521 * or 'avoidminutes'.
4522 * @return string
4523 */
4524 function formatTimePeriod( $seconds, $format = [] ) {
4525 if ( !is_array( $format ) ) {
4526 $format = [ 'avoid' => $format ]; // For backwards compatibility
4527 }
4528 if ( !isset( $format['avoid'] ) ) {
4529 $format['avoid'] = false;
4530 }
4531 if ( !isset( $format['noabbrevs'] ) ) {
4532 $format['noabbrevs'] = false;
4533 }
4534 $secondsMsg = wfMessage(
4535 $format['noabbrevs'] ? 'seconds' : 'seconds-abbrev' )->inLanguage( $this );
4536 $minutesMsg = wfMessage(
4537 $format['noabbrevs'] ? 'minutes' : 'minutes-abbrev' )->inLanguage( $this );
4538 $hoursMsg = wfMessage(
4539 $format['noabbrevs'] ? 'hours' : 'hours-abbrev' )->inLanguage( $this );
4540 $daysMsg = wfMessage(
4541 $format['noabbrevs'] ? 'days' : 'days-abbrev' )->inLanguage( $this );
4542
4543 if ( round( $seconds * 10 ) < 100 ) {
4544 $s = $this->formatNum( sprintf( "%.1f", round( $seconds * 10 ) / 10 ) );
4545 $s = $secondsMsg->params( $s )->text();
4546 } elseif ( round( $seconds ) < 60 ) {
4547 $s = $this->formatNum( round( $seconds ) );
4548 $s = $secondsMsg->params( $s )->text();
4549 } elseif ( round( $seconds ) < 3600 ) {
4550 $minutes = floor( $seconds / 60 );
4551 $secondsPart = round( fmod( $seconds, 60 ) );
4552 if ( $secondsPart == 60 ) {
4553 $secondsPart = 0;
4554 $minutes++;
4555 }
4556 $s = $minutesMsg->params( $this->formatNum( $minutes ) )->text();
4557 $s .= ' ';
4558 $s .= $secondsMsg->params( $this->formatNum( $secondsPart ) )->text();
4559 } elseif ( round( $seconds ) <= 2 * 86400 ) {
4560 $hours = floor( $seconds / 3600 );
4561 $minutes = floor( ( $seconds - $hours * 3600 ) / 60 );
4562 $secondsPart = round( $seconds - $hours * 3600 - $minutes * 60 );
4563 if ( $secondsPart == 60 ) {
4564 $secondsPart = 0;
4565 $minutes++;
4566 }
4567 if ( $minutes == 60 ) {
4568 $minutes = 0;
4569 $hours++;
4570 }
4571 $s = $hoursMsg->params( $this->formatNum( $hours ) )->text();
4572 $s .= ' ';
4573 $s .= $minutesMsg->params( $this->formatNum( $minutes ) )->text();
4574 if ( !in_array( $format['avoid'], [ 'avoidseconds', 'avoidminutes' ] ) ) {
4575 $s .= ' ' . $secondsMsg->params( $this->formatNum( $secondsPart ) )->text();
4576 }
4577 } else {
4578 $days = floor( $seconds / 86400 );
4579 if ( $format['avoid'] === 'avoidminutes' ) {
4580 $hours = round( ( $seconds - $days * 86400 ) / 3600 );
4581 if ( $hours == 24 ) {
4582 $hours = 0;
4583 $days++;
4584 }
4585 $s = $daysMsg->params( $this->formatNum( $days ) )->text();
4586 $s .= ' ';
4587 $s .= $hoursMsg->params( $this->formatNum( $hours ) )->text();
4588 } elseif ( $format['avoid'] === 'avoidseconds' ) {
4589 $hours = floor( ( $seconds - $days * 86400 ) / 3600 );
4590 $minutes = round( ( $seconds - $days * 86400 - $hours * 3600 ) / 60 );
4591 if ( $minutes == 60 ) {
4592 $minutes = 0;
4593 $hours++;
4594 }
4595 if ( $hours == 24 ) {
4596 $hours = 0;
4597 $days++;
4598 }
4599 $s = $daysMsg->params( $this->formatNum( $days ) )->text();
4600 $s .= ' ';
4601 $s .= $hoursMsg->params( $this->formatNum( $hours ) )->text();
4602 $s .= ' ';
4603 $s .= $minutesMsg->params( $this->formatNum( $minutes ) )->text();
4604 } else {
4605 $s = $daysMsg->params( $this->formatNum( $days ) )->text();
4606 $s .= ' ';
4607 $s .= $this->formatTimePeriod( $seconds - $days * 86400, $format );
4608 }
4609 }
4610 return $s;
4611 }
4612
4613 /**
4614 * Format a bitrate for output, using an appropriate
4615 * unit (bps, kbps, Mbps, Gbps, Tbps, Pbps, Ebps, Zbps or Ybps) according to
4616 * the magnitude in question.
4617 *
4618 * This use base 1000. For base 1024 use formatSize(), for another base
4619 * see formatComputingNumbers().
4620 *
4621 * @param int $bps
4622 * @return string
4623 */
4624 function formatBitrate( $bps ) {
4625 return $this->formatComputingNumbers( $bps, 1000, "bitrate-$1bits" );
4626 }
4627
4628 /**
4629 * @param int $size Size of the unit
4630 * @param int $boundary Size boundary (1000, or 1024 in most cases)
4631 * @param string $messageKey Message key to be uesd
4632 * @return string
4633 */
4634 function formatComputingNumbers( $size, $boundary, $messageKey ) {
4635 if ( $size <= 0 ) {
4636 return str_replace( '$1', $this->formatNum( $size ),
4637 $this->getMessageFromDB( str_replace( '$1', '', $messageKey ) )
4638 );
4639 }
4640 $sizes = [ '', 'kilo', 'mega', 'giga', 'tera', 'peta', 'exa', 'zeta', 'yotta' ];
4641 $index = 0;
4642
4643 $maxIndex = count( $sizes ) - 1;
4644 while ( $size >= $boundary && $index < $maxIndex ) {
4645 $index++;
4646 $size /= $boundary;
4647 }
4648
4649 // For small sizes no decimal places necessary
4650 $round = 0;
4651 if ( $index > 1 ) {
4652 // For MB and bigger two decimal places are smarter
4653 $round = 2;
4654 }
4655 $msg = str_replace( '$1', $sizes[$index], $messageKey );
4656
4657 $size = round( $size, $round );
4658 $text = $this->getMessageFromDB( $msg );
4659 return str_replace( '$1', $this->formatNum( $size ), $text );
4660 }
4661
4662 /**
4663 * Format a size in bytes for output, using an appropriate
4664 * unit (B, KB, MB, GB, TB, PB, EB, ZB or YB) according to the magnitude in question
4665 *
4666 * This method use base 1024. For base 1000 use formatBitrate(), for
4667 * another base see formatComputingNumbers()
4668 *
4669 * @param int $size Size to format
4670 * @return string Plain text (not HTML)
4671 */
4672 function formatSize( $size ) {
4673 return $this->formatComputingNumbers( $size, 1024, "size-$1bytes" );
4674 }
4675
4676 /**
4677 * Make a list item, used by various special pages
4678 *
4679 * @param string $page Page link
4680 * @param string $details HTML safe text between brackets
4681 * @param bool $oppositedm Add the direction mark opposite to your
4682 * language, to display text properly
4683 * @return HTML escaped string
4684 */
4685 function specialList( $page, $details, $oppositedm = true ) {
4686 if ( !$details ) {
4687 return $page;
4688 }
4689
4690 $dirmark = ( $oppositedm ? $this->getDirMark( true ) : '' ) . $this->getDirMark();
4691 return
4692 $page .
4693 $dirmark .
4694 $this->msg( 'word-separator' )->escaped() .
4695 $this->msg( 'parentheses' )->rawParams( $details )->escaped();
4696 }
4697
4698 /**
4699 * Generate (prev x| next x) (20|50|100...) type links for paging
4700 *
4701 * @param Title $title Title object to link
4702 * @param int $offset
4703 * @param int $limit
4704 * @param array $query Optional URL query parameter string
4705 * @param bool $atend Optional param for specified if this is the last page
4706 * @return string
4707 */
4708 public function viewPrevNext( Title $title, $offset, $limit,
4709 array $query = [], $atend = false
4710 ) {
4711 // @todo FIXME: Why on earth this needs one message for the text and another one for tooltip?
4712
4713 # Make 'previous' link
4714 $prev = wfMessage( 'prevn' )->inLanguage( $this )->title( $title )->numParams( $limit )->text();
4715 if ( $offset > 0 ) {
4716 $plink = $this->numLink( $title, max( $offset - $limit, 0 ), $limit,
4717 $query, $prev, 'prevn-title', 'mw-prevlink' );
4718 } else {
4719 $plink = htmlspecialchars( $prev );
4720 }
4721
4722 # Make 'next' link
4723 $next = wfMessage( 'nextn' )->inLanguage( $this )->title( $title )->numParams( $limit )->text();
4724 if ( $atend ) {
4725 $nlink = htmlspecialchars( $next );
4726 } else {
4727 $nlink = $this->numLink( $title, $offset + $limit, $limit,
4728 $query, $next, 'nextn-title', 'mw-nextlink' );
4729 }
4730
4731 # Make links to set number of items per page
4732 $numLinks = [];
4733 foreach ( [ 20, 50, 100, 250, 500 ] as $num ) {
4734 $numLinks[] = $this->numLink( $title, $offset, $num,
4735 $query, $this->formatNum( $num ), 'shown-title', 'mw-numlink' );
4736 }
4737
4738 return wfMessage( 'viewprevnext' )->inLanguage( $this )->title( $title
4739 )->rawParams( $plink, $nlink, $this->pipeList( $numLinks ) )->escaped();
4740 }
4741
4742 /**
4743 * Helper function for viewPrevNext() that generates links
4744 *
4745 * @param Title $title Title object to link
4746 * @param int $offset
4747 * @param int $limit
4748 * @param array $query Extra query parameters
4749 * @param string $link Text to use for the link; will be escaped
4750 * @param string $tooltipMsg Name of the message to use as tooltip
4751 * @param string $class Value of the "class" attribute of the link
4752 * @return string HTML fragment
4753 */
4754 private function numLink( Title $title, $offset, $limit, array $query, $link,
4755 $tooltipMsg, $class
4756 ) {
4757 $query = [ 'limit' => $limit, 'offset' => $offset ] + $query;
4758 $tooltip = wfMessage( $tooltipMsg )->inLanguage( $this )->title( $title )
4759 ->numParams( $limit )->text();
4760
4761 return Html::element( 'a', [ 'href' => $title->getLocalURL( $query ),
4762 'title' => $tooltip, 'class' => $class ], $link );
4763 }
4764
4765 /**
4766 * Get the conversion rule title, if any.
4767 *
4768 * @return string
4769 */
4770 public function getConvRuleTitle() {
4771 return $this->mConverter->getConvRuleTitle();
4772 }
4773
4774 /**
4775 * Get the compiled plural rules for the language
4776 * @since 1.20
4777 * @return array Associative array with plural form, and plural rule as key-value pairs
4778 */
4779 public function getCompiledPluralRules() {
4780 $pluralRules = self::$dataCache->getItem( strtolower( $this->mCode ), 'compiledPluralRules' );
4781 $fallbacks = Language::getFallbacksFor( $this->mCode );
4782 if ( !$pluralRules ) {
4783 foreach ( $fallbacks as $fallbackCode ) {
4784 $pluralRules = self::$dataCache->getItem( strtolower( $fallbackCode ), 'compiledPluralRules' );
4785 if ( $pluralRules ) {
4786 break;
4787 }
4788 }
4789 }
4790 return $pluralRules;
4791 }
4792
4793 /**
4794 * Get the plural rules for the language
4795 * @since 1.20
4796 * @return array Associative array with plural form number and plural rule as key-value pairs
4797 */
4798 public function getPluralRules() {
4799 $pluralRules = self::$dataCache->getItem( strtolower( $this->mCode ), 'pluralRules' );
4800 $fallbacks = Language::getFallbacksFor( $this->mCode );
4801 if ( !$pluralRules ) {
4802 foreach ( $fallbacks as $fallbackCode ) {
4803 $pluralRules = self::$dataCache->getItem( strtolower( $fallbackCode ), 'pluralRules' );
4804 if ( $pluralRules ) {
4805 break;
4806 }
4807 }
4808 }
4809 return $pluralRules;
4810 }
4811
4812 /**
4813 * Get the plural rule types for the language
4814 * @since 1.22
4815 * @return array Associative array with plural form number and plural rule type as key-value pairs
4816 */
4817 public function getPluralRuleTypes() {
4818 $pluralRuleTypes = self::$dataCache->getItem( strtolower( $this->mCode ), 'pluralRuleTypes' );
4819 $fallbacks = Language::getFallbacksFor( $this->mCode );
4820 if ( !$pluralRuleTypes ) {
4821 foreach ( $fallbacks as $fallbackCode ) {
4822 $pluralRuleTypes = self::$dataCache->getItem( strtolower( $fallbackCode ), 'pluralRuleTypes' );
4823 if ( $pluralRuleTypes ) {
4824 break;
4825 }
4826 }
4827 }
4828 return $pluralRuleTypes;
4829 }
4830
4831 /**
4832 * Find the index number of the plural rule appropriate for the given number
4833 * @param int $number
4834 * @return int The index number of the plural rule
4835 */
4836 public function getPluralRuleIndexNumber( $number ) {
4837 $pluralRules = $this->getCompiledPluralRules();
4838 $form = Evaluator::evaluateCompiled( $number, $pluralRules );
4839 return $form;
4840 }
4841
4842 /**
4843 * Find the plural rule type appropriate for the given number
4844 * For example, if the language is set to Arabic, getPluralType(5) should
4845 * return 'few'.
4846 * @since 1.22
4847 * @param int $number
4848 * @return string The name of the plural rule type, e.g. one, two, few, many
4849 */
4850 public function getPluralRuleType( $number ) {
4851 $index = $this->getPluralRuleIndexNumber( $number );
4852 $pluralRuleTypes = $this->getPluralRuleTypes();
4853 if ( isset( $pluralRuleTypes[$index] ) ) {
4854 return $pluralRuleTypes[$index];
4855 } else {
4856 return 'other';
4857 }
4858 }
4859 }
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