Moved HashRing to /libs
[mediawiki.git] / languages / Language.php
blob320688a319136d06fd76766a7a33f5ca2c2facd3
1 <?php
2 /**
3 * Internationalisation code.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
20 * @file
21 * @ingroup Language
24 /**
25 * @defgroup Language Language
28 if ( !defined( 'MEDIAWIKI' ) ) {
29 echo "This file is part of MediaWiki, it is not a valid entry point.\n";
30 exit( 1 );
33 if ( function_exists( 'mb_strtoupper' ) ) {
34 mb_internal_encoding( 'UTF-8' );
37 /**
38 * a fake language converter
40 * @ingroup Language
42 class FakeConverter {
43 /**
44 * @var Language
46 public $mLang;
47 function __construct( $langobj ) { $this->mLang = $langobj; }
48 function autoConvert( $text, $variant = false ) { return $text; }
49 function autoConvertToAllVariants( $text ) { return array( $this->mLang->getCode() => $text ); }
50 function convert( $t ) { return $t; }
51 function convertTo( $text, $variant ) { return $text; }
52 function convertTitle( $t ) { return $t->getPrefixedText(); }
53 function convertNamespace( $ns ) { return $this->mLang->getFormattedNsText( $ns ); }
54 function getVariants() { return array( $this->mLang->getCode() ); }
55 function getVariantFallbacks( $variant ) { return $this->mLang->getCode(); }
56 function getPreferredVariant() { return $this->mLang->getCode(); }
57 function getDefaultVariant() { return $this->mLang->getCode(); }
58 function getURLVariant() { return ''; }
59 function getConvRuleTitle() { return false; }
60 function findVariantLink( &$l, &$n, $ignoreOtherCond = false ) { }
61 function getExtraHashOptions() { return ''; }
62 function getParsedTitle() { return ''; }
63 function markNoConversion( $text, $noParse = false ) { return $text; }
64 function convertCategoryKey( $key ) { return $key; }
65 /** @deprecated since 1.22 is no longer used */
66 function armourMath( $text ) { return $text; }
67 function validateVariant( $variant = null ) { return $variant === $this->mLang->getCode() ? $variant : null; }
68 function translate( $text, $variant ) { return $text; }
71 /**
72 * Internationalisation code
73 * @ingroup Language
75 class Language {
77 /**
78 * @var LanguageConverter
80 public $mConverter;
82 public $mVariants, $mCode, $mLoaded = false;
83 public $mMagicExtensions = array(), $mMagicHookDone = false;
84 private $mHtmlCode = null, $mParentLanguage = false;
86 public $dateFormatStrings = array();
87 public $mExtendedSpecialPageAliases;
89 protected $namespaceNames, $mNamespaceIds, $namespaceAliases;
91 /**
92 * ReplacementArray object caches
94 public $transformData = array();
96 /**
97 * @var LocalisationCache
99 static public $dataCache;
101 static public $mLangObjCache = array();
103 static public $mWeekdayMsgs = array(
104 'sunday', 'monday', 'tuesday', 'wednesday', 'thursday',
105 'friday', 'saturday'
108 static public $mWeekdayAbbrevMsgs = array(
109 'sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat'
112 static public $mMonthMsgs = array(
113 'january', 'february', 'march', 'april', 'may_long', 'june',
114 'july', 'august', 'september', 'october', 'november',
115 'december'
117 static public $mMonthGenMsgs = array(
118 'january-gen', 'february-gen', 'march-gen', 'april-gen', 'may-gen', 'june-gen',
119 'july-gen', 'august-gen', 'september-gen', 'october-gen', 'november-gen',
120 'december-gen'
122 static public $mMonthAbbrevMsgs = array(
123 'jan', 'feb', 'mar', 'apr', 'may', 'jun', 'jul', 'aug',
124 'sep', 'oct', 'nov', 'dec'
127 static public $mIranianCalendarMonthMsgs = array(
128 'iranian-calendar-m1', 'iranian-calendar-m2', 'iranian-calendar-m3',
129 'iranian-calendar-m4', 'iranian-calendar-m5', 'iranian-calendar-m6',
130 'iranian-calendar-m7', 'iranian-calendar-m8', 'iranian-calendar-m9',
131 'iranian-calendar-m10', 'iranian-calendar-m11', 'iranian-calendar-m12'
134 static public $mHebrewCalendarMonthMsgs = array(
135 'hebrew-calendar-m1', 'hebrew-calendar-m2', 'hebrew-calendar-m3',
136 'hebrew-calendar-m4', 'hebrew-calendar-m5', 'hebrew-calendar-m6',
137 'hebrew-calendar-m7', 'hebrew-calendar-m8', 'hebrew-calendar-m9',
138 'hebrew-calendar-m10', 'hebrew-calendar-m11', 'hebrew-calendar-m12',
139 'hebrew-calendar-m6a', 'hebrew-calendar-m6b'
142 static public $mHebrewCalendarMonthGenMsgs = array(
143 'hebrew-calendar-m1-gen', 'hebrew-calendar-m2-gen', 'hebrew-calendar-m3-gen',
144 'hebrew-calendar-m4-gen', 'hebrew-calendar-m5-gen', 'hebrew-calendar-m6-gen',
145 'hebrew-calendar-m7-gen', 'hebrew-calendar-m8-gen', 'hebrew-calendar-m9-gen',
146 'hebrew-calendar-m10-gen', 'hebrew-calendar-m11-gen', 'hebrew-calendar-m12-gen',
147 'hebrew-calendar-m6a-gen', 'hebrew-calendar-m6b-gen'
150 static public $mHijriCalendarMonthMsgs = array(
151 'hijri-calendar-m1', 'hijri-calendar-m2', 'hijri-calendar-m3',
152 'hijri-calendar-m4', 'hijri-calendar-m5', 'hijri-calendar-m6',
153 'hijri-calendar-m7', 'hijri-calendar-m8', 'hijri-calendar-m9',
154 'hijri-calendar-m10', 'hijri-calendar-m11', 'hijri-calendar-m12'
158 * @since 1.20
159 * @var array
161 static public $durationIntervals = array(
162 'millennia' => 31556952000,
163 'centuries' => 3155695200,
164 'decades' => 315569520,
165 'years' => 31556952, // 86400 * ( 365 + ( 24 * 3 + 25 ) / 400 )
166 'weeks' => 604800,
167 'days' => 86400,
168 'hours' => 3600,
169 'minutes' => 60,
170 'seconds' => 1,
174 * Cache for language fallbacks.
175 * @see Language::getFallbacksIncludingSiteLanguage
176 * @since 1.21
177 * @var array
179 static private $fallbackLanguageCache = array();
182 * Get a cached or new language object for a given language code
183 * @param $code String
184 * @return Language
186 static function factory( $code ) {
187 global $wgDummyLanguageCodes, $wgLangObjCacheSize;
189 if ( isset( $wgDummyLanguageCodes[$code] ) ) {
190 $code = $wgDummyLanguageCodes[$code];
193 // get the language object to process
194 $langObj = isset( self::$mLangObjCache[$code] )
195 ? self::$mLangObjCache[$code]
196 : self::newFromCode( $code );
198 // merge the language object in to get it up front in the cache
199 self::$mLangObjCache = array_merge( array( $code => $langObj ), self::$mLangObjCache );
200 // get rid of the oldest ones in case we have an overflow
201 self::$mLangObjCache = array_slice( self::$mLangObjCache, 0, $wgLangObjCacheSize, true );
203 return $langObj;
207 * Create a language object for a given language code
208 * @param $code String
209 * @throws MWException
210 * @return Language
212 protected static function newFromCode( $code ) {
213 // Protect against path traversal below
214 if ( !Language::isValidCode( $code )
215 || strcspn( $code, ":/\\\000" ) !== strlen( $code )
217 throw new MWException( "Invalid language code \"$code\"" );
220 if ( !Language::isValidBuiltInCode( $code ) ) {
221 // It's not possible to customise this code with class files, so
222 // just return a Language object. This is to support uselang= hacks.
223 $lang = new Language;
224 $lang->setCode( $code );
225 return $lang;
228 // Check if there is a language class for the code
229 $class = self::classFromCode( $code );
230 self::preloadLanguageClass( $class );
231 if ( class_exists( $class ) ) {
232 $lang = new $class;
233 return $lang;
236 // Keep trying the fallback list until we find an existing class
237 $fallbacks = Language::getFallbacksFor( $code );
238 foreach ( $fallbacks as $fallbackCode ) {
239 if ( !Language::isValidBuiltInCode( $fallbackCode ) ) {
240 throw new MWException( "Invalid fallback '$fallbackCode' in fallback sequence for '$code'" );
243 $class = self::classFromCode( $fallbackCode );
244 self::preloadLanguageClass( $class );
245 if ( class_exists( $class ) ) {
246 $lang = Language::newFromCode( $fallbackCode );
247 $lang->setCode( $code );
248 return $lang;
252 throw new MWException( "Invalid fallback sequence for language '$code'" );
256 * Checks whether any localisation is available for that language tag
257 * in MediaWiki (MessagesXx.php exists).
259 * @param string $code Language tag (in lower case)
260 * @return bool Whether language is supported
261 * @since 1.21
263 public static function isSupportedLanguage( $code ) {
264 return $code === strtolower( $code ) && is_readable( self::getMessagesFileName( $code ) );
268 * Returns true if a language code string is a well-formed language tag
269 * according to RFC 5646.
270 * This function only checks well-formedness; it doesn't check that
271 * language, script or variant codes actually exist in the repositories.
273 * Based on regexes by Mark Davis of the Unicode Consortium:
274 * http://unicode.org/repos/cldr/trunk/tools/java/org/unicode/cldr/util/data/langtagRegex.txt
276 * @param $code string
277 * @param $lenient boolean Whether to allow '_' as separator. The default is only '-'.
279 * @return bool
280 * @since 1.21
282 public static function isWellFormedLanguageTag( $code, $lenient = false ) {
283 $alpha = '[a-z]';
284 $digit = '[0-9]';
285 $alphanum = '[a-z0-9]';
286 $x = 'x'; # private use singleton
287 $singleton = '[a-wy-z]'; # other singleton
288 $s = $lenient ? '[-_]' : '-';
290 $language = "$alpha{2,8}|$alpha{2,3}$s$alpha{3}";
291 $script = "$alpha{4}"; # ISO 15924
292 $region = "(?:$alpha{2}|$digit{3})"; # ISO 3166-1 alpha-2 or UN M.49
293 $variant = "(?:$alphanum{5,8}|$digit$alphanum{3})";
294 $extension = "$singleton(?:$s$alphanum{2,8})+";
295 $privateUse = "$x(?:$s$alphanum{1,8})+";
297 # Define certain grandfathered codes, since otherwise the regex is pretty useless.
298 # Since these are limited, this is safe even later changes to the registry --
299 # the only oddity is that it might change the type of the tag, and thus
300 # the results from the capturing groups.
301 # http://www.iana.org/assignments/language-subtag-registry
303 $grandfathered = "en{$s}GB{$s}oed"
304 . "|i{$s}(?:ami|bnn|default|enochian|hak|klingon|lux|mingo|navajo|pwn|tao|tay|tsu)"
305 . "|no{$s}(?:bok|nyn)"
306 . "|sgn{$s}(?:BE{$s}(?:fr|nl)|CH{$s}de)"
307 . "|zh{$s}min{$s}nan";
309 $variantList = "$variant(?:$s$variant)*";
310 $extensionList = "$extension(?:$s$extension)*";
312 $langtag = "(?:($language)"
313 . "(?:$s$script)?"
314 . "(?:$s$region)?"
315 . "(?:$s$variantList)?"
316 . "(?:$s$extensionList)?"
317 . "(?:$s$privateUse)?)";
319 # The final breakdown, with capturing groups for each of these components
320 # The variants, extensions, grandfathered, and private-use may have interior '-'
322 $root = "^(?:$langtag|$privateUse|$grandfathered)$";
324 return (bool)preg_match( "/$root/", strtolower( $code ) );
328 * Returns true if a language code string is of a valid form, whether or
329 * not it exists. This includes codes which are used solely for
330 * customisation via the MediaWiki namespace.
332 * @param $code string
334 * @return bool
336 public static function isValidCode( $code ) {
337 static $cache = array();
338 if ( isset( $cache[$code] ) ) {
339 return $cache[$code];
341 // People think language codes are html safe, so enforce it.
342 // Ideally we should only allow a-zA-Z0-9-
343 // but, .+ and other chars are often used for {{int:}} hacks
344 // see bugs 37564, 37587, 36938
345 $cache[$code] =
346 strcspn( $code, ":/\\\000&<>'\"" ) === strlen( $code )
347 && !preg_match( Title::getTitleInvalidRegex(), $code );
349 return $cache[$code];
353 * Returns true if a language code is of a valid form for the purposes of
354 * internal customisation of MediaWiki, via Messages*.php.
356 * @param $code string
358 * @throws MWException
359 * @since 1.18
360 * @return bool
362 public static function isValidBuiltInCode( $code ) {
364 if ( !is_string( $code ) ) {
365 if ( is_object( $code ) ) {
366 $addmsg = " of class " . get_class( $code );
367 } else {
368 $addmsg = '';
370 $type = gettype( $code );
371 throw new MWException( __METHOD__ . " must be passed a string, $type given$addmsg" );
374 return (bool)preg_match( '/^[a-z0-9-]{2,}$/i', $code );
378 * Returns true if a language code is an IETF tag known to MediaWiki.
380 * @param $code string
382 * @since 1.21
383 * @return bool
385 public static function isKnownLanguageTag( $tag ) {
386 static $coreLanguageNames;
388 // Quick escape for invalid input to avoid exceptions down the line
389 // when code tries to process tags which are not valid at all.
390 if ( !self::isValidBuiltInCode( $tag ) ) {
391 return false;
394 if ( $coreLanguageNames === null ) {
395 global $IP;
396 include "$IP/languages/Names.php";
399 if ( isset( $coreLanguageNames[$tag] )
400 || self::fetchLanguageName( $tag, $tag ) !== ''
402 return true;
405 return false;
409 * @param $code
410 * @return String Name of the language class
412 public static function classFromCode( $code ) {
413 if ( $code == 'en' ) {
414 return 'Language';
415 } else {
416 return 'Language' . str_replace( '-', '_', ucfirst( $code ) );
421 * Includes language class files
423 * @param $class string Name of the language class
425 public static function preloadLanguageClass( $class ) {
426 global $IP;
428 if ( $class === 'Language' ) {
429 return;
432 if ( file_exists( "$IP/languages/classes/$class.php" ) ) {
433 include_once "$IP/languages/classes/$class.php";
438 * Get the LocalisationCache instance
440 * @return LocalisationCache
442 public static function getLocalisationCache() {
443 if ( is_null( self::$dataCache ) ) {
444 global $wgLocalisationCacheConf;
445 $class = $wgLocalisationCacheConf['class'];
446 self::$dataCache = new $class( $wgLocalisationCacheConf );
448 return self::$dataCache;
451 function __construct() {
452 $this->mConverter = new FakeConverter( $this );
453 // Set the code to the name of the descendant
454 if ( get_class( $this ) == 'Language' ) {
455 $this->mCode = 'en';
456 } else {
457 $this->mCode = str_replace( '_', '-', strtolower( substr( get_class( $this ), 8 ) ) );
459 self::getLocalisationCache();
463 * Reduce memory usage
465 function __destruct() {
466 foreach ( $this as $name => $value ) {
467 unset( $this->$name );
472 * Hook which will be called if this is the content language.
473 * Descendants can use this to register hook functions or modify globals
475 function initContLang() { }
478 * Same as getFallbacksFor for current language.
479 * @return array|bool
480 * @deprecated in 1.19
482 function getFallbackLanguageCode() {
483 wfDeprecated( __METHOD__, '1.19' );
484 return self::getFallbackFor( $this->mCode );
488 * @return array
489 * @since 1.19
491 function getFallbackLanguages() {
492 return self::getFallbacksFor( $this->mCode );
496 * Exports $wgBookstoreListEn
497 * @return array
499 function getBookstoreList() {
500 return self::$dataCache->getItem( $this->mCode, 'bookstoreList' );
504 * Returns an array of localised namespaces indexed by their numbers. If the namespace is not
505 * available in localised form, it will be included in English.
507 * @return array
509 public function getNamespaces() {
510 if ( is_null( $this->namespaceNames ) ) {
511 global $wgMetaNamespace, $wgMetaNamespaceTalk, $wgExtraNamespaces;
513 $this->namespaceNames = self::$dataCache->getItem( $this->mCode, 'namespaceNames' );
514 $validNamespaces = MWNamespace::getCanonicalNamespaces();
516 $this->namespaceNames = $wgExtraNamespaces + $this->namespaceNames + $validNamespaces;
518 $this->namespaceNames[NS_PROJECT] = $wgMetaNamespace;
519 if ( $wgMetaNamespaceTalk ) {
520 $this->namespaceNames[NS_PROJECT_TALK] = $wgMetaNamespaceTalk;
521 } else {
522 $talk = $this->namespaceNames[NS_PROJECT_TALK];
523 $this->namespaceNames[NS_PROJECT_TALK] =
524 $this->fixVariableInNamespace( $talk );
527 # Sometimes a language will be localised but not actually exist on this wiki.
528 foreach ( $this->namespaceNames as $key => $text ) {
529 if ( !isset( $validNamespaces[$key] ) ) {
530 unset( $this->namespaceNames[$key] );
534 # The above mixing may leave namespaces out of canonical order.
535 # Re-order by namespace ID number...
536 ksort( $this->namespaceNames );
538 wfRunHooks( 'LanguageGetNamespaces', array( &$this->namespaceNames ) );
540 return $this->namespaceNames;
544 * Arbitrarily set all of the namespace names at once. Mainly used for testing
545 * @param $namespaces Array of namespaces (id => name)
547 public function setNamespaces( array $namespaces ) {
548 $this->namespaceNames = $namespaces;
549 $this->mNamespaceIds = null;
553 * Resets all of the namespace caches. Mainly used for testing
555 public function resetNamespaces() {
556 $this->namespaceNames = null;
557 $this->mNamespaceIds = null;
558 $this->namespaceAliases = null;
562 * A convenience function that returns the same thing as
563 * getNamespaces() except with the array values changed to ' '
564 * where it found '_', useful for producing output to be displayed
565 * e.g. in <select> forms.
567 * @return array
569 function getFormattedNamespaces() {
570 $ns = $this->getNamespaces();
571 foreach ( $ns as $k => $v ) {
572 $ns[$k] = strtr( $v, '_', ' ' );
574 return $ns;
578 * Get a namespace value by key
579 * <code>
580 * $mw_ns = $wgContLang->getNsText( NS_MEDIAWIKI );
581 * echo $mw_ns; // prints 'MediaWiki'
582 * </code>
584 * @param $index Int: the array key of the namespace to return
585 * @return mixed, string if the namespace value exists, otherwise false
587 function getNsText( $index ) {
588 $ns = $this->getNamespaces();
589 return isset( $ns[$index] ) ? $ns[$index] : false;
593 * A convenience function that returns the same thing as
594 * getNsText() except with '_' changed to ' ', useful for
595 * producing output.
597 * <code>
598 * $mw_ns = $wgContLang->getFormattedNsText( NS_MEDIAWIKI_TALK );
599 * echo $mw_ns; // prints 'MediaWiki talk'
600 * </code>
602 * @param int $index The array key of the namespace to return
603 * @return string Namespace name without underscores (empty string if namespace does not exist)
605 function getFormattedNsText( $index ) {
606 $ns = $this->getNsText( $index );
607 return strtr( $ns, '_', ' ' );
611 * Returns gender-dependent namespace alias if available.
612 * @param $index Int: namespace index
613 * @param $gender String: gender key (male, female... )
614 * @return String
615 * @since 1.18
617 function getGenderNsText( $index, $gender ) {
618 global $wgExtraGenderNamespaces;
620 $ns = $wgExtraGenderNamespaces + self::$dataCache->getItem( $this->mCode, 'namespaceGenderAliases' );
621 return isset( $ns[$index][$gender] ) ? $ns[$index][$gender] : $this->getNsText( $index );
625 * Whether this language makes distinguishes genders for example in
626 * namespaces.
627 * @return bool
628 * @since 1.18
630 function needsGenderDistinction() {
631 global $wgExtraGenderNamespaces, $wgExtraNamespaces;
632 if ( count( $wgExtraGenderNamespaces ) > 0 ) {
633 // $wgExtraGenderNamespaces overrides everything
634 return true;
635 } elseif ( isset( $wgExtraNamespaces[NS_USER] ) && isset( $wgExtraNamespaces[NS_USER_TALK] ) ) {
636 /// @todo There may be other gender namespace than NS_USER & NS_USER_TALK in the future
637 // $wgExtraNamespaces overrides any gender aliases specified in i18n files
638 return false;
639 } else {
640 // Check what is in i18n files
641 $aliases = self::$dataCache->getItem( $this->mCode, 'namespaceGenderAliases' );
642 return count( $aliases ) > 0;
647 * Get a namespace key by value, case insensitive.
648 * Only matches namespace names for the current language, not the
649 * canonical ones defined in Namespace.php.
651 * @param $text String
652 * @return mixed An integer if $text is a valid value otherwise false
654 function getLocalNsIndex( $text ) {
655 $lctext = $this->lc( $text );
656 $ids = $this->getNamespaceIds();
657 return isset( $ids[$lctext] ) ? $ids[$lctext] : false;
661 * @return array
663 function getNamespaceAliases() {
664 if ( is_null( $this->namespaceAliases ) ) {
665 $aliases = self::$dataCache->getItem( $this->mCode, 'namespaceAliases' );
666 if ( !$aliases ) {
667 $aliases = array();
668 } else {
669 foreach ( $aliases as $name => $index ) {
670 if ( $index === NS_PROJECT_TALK ) {
671 unset( $aliases[$name] );
672 $name = $this->fixVariableInNamespace( $name );
673 $aliases[$name] = $index;
678 global $wgExtraGenderNamespaces;
679 $genders = $wgExtraGenderNamespaces + (array)self::$dataCache->getItem( $this->mCode, 'namespaceGenderAliases' );
680 foreach ( $genders as $index => $forms ) {
681 foreach ( $forms as $alias ) {
682 $aliases[$alias] = $index;
686 # Also add converted namespace names as aliases, to avoid confusion.
687 $convertedNames = array();
688 foreach ( $this->getVariants() as $variant ) {
689 if ( $variant === $this->mCode ) {
690 continue;
692 foreach ( $this->getNamespaces() as $ns => $_ ) {
693 $convertedNames[$this->getConverter()->convertNamespace( $ns, $variant )] = $ns;
697 $this->namespaceAliases = $aliases + $convertedNames;
699 return $this->namespaceAliases;
703 * @return array
705 function getNamespaceIds() {
706 if ( is_null( $this->mNamespaceIds ) ) {
707 global $wgNamespaceAliases;
708 # Put namespace names and aliases into a hashtable.
709 # If this is too slow, then we should arrange it so that it is done
710 # before caching. The catch is that at pre-cache time, the above
711 # class-specific fixup hasn't been done.
712 $this->mNamespaceIds = array();
713 foreach ( $this->getNamespaces() as $index => $name ) {
714 $this->mNamespaceIds[$this->lc( $name )] = $index;
716 foreach ( $this->getNamespaceAliases() as $name => $index ) {
717 $this->mNamespaceIds[$this->lc( $name )] = $index;
719 if ( $wgNamespaceAliases ) {
720 foreach ( $wgNamespaceAliases as $name => $index ) {
721 $this->mNamespaceIds[$this->lc( $name )] = $index;
725 return $this->mNamespaceIds;
729 * Get a namespace key by value, case insensitive. Canonical namespace
730 * names override custom ones defined for the current language.
732 * @param $text String
733 * @return mixed An integer if $text is a valid value otherwise false
735 function getNsIndex( $text ) {
736 $lctext = $this->lc( $text );
737 $ns = MWNamespace::getCanonicalIndex( $lctext );
738 if ( $ns !== null ) {
739 return $ns;
741 $ids = $this->getNamespaceIds();
742 return isset( $ids[$lctext] ) ? $ids[$lctext] : false;
746 * short names for language variants used for language conversion links.
748 * @param $code String
749 * @param $usemsg bool Use the "variantname-xyz" message if it exists
750 * @return string
752 function getVariantname( $code, $usemsg = true ) {
753 $msg = "variantname-$code";
754 if ( $usemsg && wfMessage( $msg )->exists() ) {
755 return $this->getMessageFromDB( $msg );
757 $name = self::fetchLanguageName( $code );
758 if ( $name ) {
759 return $name; # if it's defined as a language name, show that
760 } else {
761 # otherwise, output the language code
762 return $code;
767 * @param $name string
768 * @return string
770 function specialPage( $name ) {
771 $aliases = $this->getSpecialPageAliases();
772 if ( isset( $aliases[$name][0] ) ) {
773 $name = $aliases[$name][0];
775 return $this->getNsText( NS_SPECIAL ) . ':' . $name;
779 * @return array
781 function getDatePreferences() {
782 return self::$dataCache->getItem( $this->mCode, 'datePreferences' );
786 * @return array
788 function getDateFormats() {
789 return self::$dataCache->getItem( $this->mCode, 'dateFormats' );
793 * @return array|string
795 function getDefaultDateFormat() {
796 $df = self::$dataCache->getItem( $this->mCode, 'defaultDateFormat' );
797 if ( $df === 'dmy or mdy' ) {
798 global $wgAmericanDates;
799 return $wgAmericanDates ? 'mdy' : 'dmy';
800 } else {
801 return $df;
806 * @return array
808 function getDatePreferenceMigrationMap() {
809 return self::$dataCache->getItem( $this->mCode, 'datePreferenceMigrationMap' );
813 * @param $image
814 * @return array|null
816 function getImageFile( $image ) {
817 return self::$dataCache->getSubitem( $this->mCode, 'imageFiles', $image );
821 * @return array
823 function getExtraUserToggles() {
824 return (array)self::$dataCache->getItem( $this->mCode, 'extraUserToggles' );
828 * @param $tog
829 * @return string
831 function getUserToggle( $tog ) {
832 return $this->getMessageFromDB( "tog-$tog" );
836 * Get native language names, indexed by code.
837 * Only those defined in MediaWiki, no other data like CLDR.
838 * If $customisedOnly is true, only returns codes with a messages file
840 * @param $customisedOnly bool
842 * @return array
843 * @deprecated in 1.20, use fetchLanguageNames()
845 public static function getLanguageNames( $customisedOnly = false ) {
846 return self::fetchLanguageNames( null, $customisedOnly ? 'mwfile' : 'mw' );
850 * Get translated language names. This is done on best effort and
851 * by default this is exactly the same as Language::getLanguageNames.
852 * The CLDR extension provides translated names.
853 * @param $code String Language code.
854 * @return Array language code => language name
855 * @since 1.18.0
856 * @deprecated in 1.20, use fetchLanguageNames()
858 public static function getTranslatedLanguageNames( $code ) {
859 return self::fetchLanguageNames( $code, 'all' );
863 * Get an array of language names, indexed by code.
864 * @param $inLanguage null|string: Code of language in which to return the names
865 * Use null for autonyms (native names)
866 * @param $include string:
867 * 'all' all available languages
868 * 'mw' only if the language is defined in MediaWiki or wgExtraLanguageNames (default)
869 * 'mwfile' only if the language is in 'mw' *and* has a message file
870 * @return array: language code => language name
871 * @since 1.20
873 public static function fetchLanguageNames( $inLanguage = null, $include = 'mw' ) {
874 global $wgExtraLanguageNames;
875 static $coreLanguageNames;
877 if ( $coreLanguageNames === null ) {
878 global $IP;
879 include "$IP/languages/Names.php";
882 $names = array();
884 if ( $inLanguage ) {
885 # TODO: also include when $inLanguage is null, when this code is more efficient
886 wfRunHooks( 'LanguageGetTranslatedLanguageNames', array( &$names, $inLanguage ) );
889 $mwNames = $wgExtraLanguageNames + $coreLanguageNames;
890 foreach ( $mwNames as $mwCode => $mwName ) {
891 # - Prefer own MediaWiki native name when not using the hook
892 # - For other names just add if not added through the hook
893 if ( $mwCode === $inLanguage || !isset( $names[$mwCode] ) ) {
894 $names[$mwCode] = $mwName;
898 if ( $include === 'all' ) {
899 return $names;
902 $returnMw = array();
903 $coreCodes = array_keys( $mwNames );
904 foreach ( $coreCodes as $coreCode ) {
905 $returnMw[$coreCode] = $names[$coreCode];
908 if ( $include === 'mwfile' ) {
909 $namesMwFile = array();
910 # We do this using a foreach over the codes instead of a directory
911 # loop so that messages files in extensions will work correctly.
912 foreach ( $returnMw as $code => $value ) {
913 if ( is_readable( self::getMessagesFileName( $code ) ) ) {
914 $namesMwFile[$code] = $names[$code];
917 return $namesMwFile;
919 # 'mw' option; default if it's not one of the other two options (all/mwfile)
920 return $returnMw;
924 * @param $code string: The code of the language for which to get the name
925 * @param $inLanguage null|string: Code of language in which to return the name (null for autonyms)
926 * @param $include string: 'all', 'mw' or 'mwfile'; see fetchLanguageNames()
927 * @return string: Language name or empty
928 * @since 1.20
930 public static function fetchLanguageName( $code, $inLanguage = null, $include = 'all' ) {
931 $code = strtolower( $code );
932 $array = self::fetchLanguageNames( $inLanguage, $include );
933 return !array_key_exists( $code, $array ) ? '' : $array[$code];
937 * Get a message from the MediaWiki namespace.
939 * @param $msg String: message name
940 * @return string
942 function getMessageFromDB( $msg ) {
943 return wfMessage( $msg )->inLanguage( $this )->text();
947 * Get the native language name of $code.
948 * Only if defined in MediaWiki, no other data like CLDR.
949 * @param $code string
950 * @return string
951 * @deprecated in 1.20, use fetchLanguageName()
953 function getLanguageName( $code ) {
954 return self::fetchLanguageName( $code );
958 * @param $key string
959 * @return string
961 function getMonthName( $key ) {
962 return $this->getMessageFromDB( self::$mMonthMsgs[$key - 1] );
966 * @return array
968 function getMonthNamesArray() {
969 $monthNames = array( '' );
970 for ( $i = 1; $i < 13; $i++ ) {
971 $monthNames[] = $this->getMonthName( $i );
973 return $monthNames;
977 * @param $key string
978 * @return string
980 function getMonthNameGen( $key ) {
981 return $this->getMessageFromDB( self::$mMonthGenMsgs[$key - 1] );
985 * @param $key string
986 * @return string
988 function getMonthAbbreviation( $key ) {
989 return $this->getMessageFromDB( self::$mMonthAbbrevMsgs[$key - 1] );
993 * @return array
995 function getMonthAbbreviationsArray() {
996 $monthNames = array( '' );
997 for ( $i = 1; $i < 13; $i++ ) {
998 $monthNames[] = $this->getMonthAbbreviation( $i );
1000 return $monthNames;
1004 * @param $key string
1005 * @return string
1007 function getWeekdayName( $key ) {
1008 return $this->getMessageFromDB( self::$mWeekdayMsgs[$key - 1] );
1012 * @param $key string
1013 * @return string
1015 function getWeekdayAbbreviation( $key ) {
1016 return $this->getMessageFromDB( self::$mWeekdayAbbrevMsgs[$key - 1] );
1020 * @param $key string
1021 * @return string
1023 function getIranianCalendarMonthName( $key ) {
1024 return $this->getMessageFromDB( self::$mIranianCalendarMonthMsgs[$key - 1] );
1028 * @param $key string
1029 * @return string
1031 function getHebrewCalendarMonthName( $key ) {
1032 return $this->getMessageFromDB( self::$mHebrewCalendarMonthMsgs[$key - 1] );
1036 * @param $key string
1037 * @return string
1039 function getHebrewCalendarMonthNameGen( $key ) {
1040 return $this->getMessageFromDB( self::$mHebrewCalendarMonthGenMsgs[$key - 1] );
1044 * @param $key string
1045 * @return string
1047 function getHijriCalendarMonthName( $key ) {
1048 return $this->getMessageFromDB( self::$mHijriCalendarMonthMsgs[$key - 1] );
1052 * This is a workalike of PHP's date() function, but with better
1053 * internationalisation, a reduced set of format characters, and a better
1054 * escaping format.
1056 * Supported format characters are dDjlNwzWFmMntLoYyaAgGhHiscrUeIOPTZ. See
1057 * the PHP manual for definitions. There are a number of extensions, which
1058 * start with "x":
1060 * xn Do not translate digits of the next numeric format character
1061 * xN Toggle raw digit (xn) flag, stays set until explicitly unset
1062 * xr Use roman numerals for the next numeric format character
1063 * xh Use hebrew numerals for the next numeric format character
1064 * xx Literal x
1065 * xg Genitive month name
1067 * xij j (day number) in Iranian calendar
1068 * xiF F (month name) in Iranian calendar
1069 * xin n (month number) in Iranian calendar
1070 * xiy y (two digit year) in Iranian calendar
1071 * xiY Y (full year) in Iranian calendar
1073 * xjj j (day number) in Hebrew calendar
1074 * xjF F (month name) in Hebrew calendar
1075 * xjt t (days in month) in Hebrew calendar
1076 * xjx xg (genitive month name) in Hebrew calendar
1077 * xjn n (month number) in Hebrew calendar
1078 * xjY Y (full year) in Hebrew calendar
1080 * xmj j (day number) in Hijri calendar
1081 * xmF F (month name) in Hijri calendar
1082 * xmn n (month number) in Hijri calendar
1083 * xmY Y (full year) in Hijri calendar
1085 * xkY Y (full year) in Thai solar calendar. Months and days are
1086 * identical to the Gregorian calendar
1087 * xoY Y (full year) in Minguo calendar or Juche year.
1088 * Months and days are identical to the
1089 * Gregorian calendar
1090 * xtY Y (full year) in Japanese nengo. Months and days are
1091 * identical to the Gregorian calendar
1093 * Characters enclosed in double quotes will be considered literal (with
1094 * the quotes themselves removed). Unmatched quotes will be considered
1095 * literal quotes. Example:
1097 * "The month is" F => The month is January
1098 * i's" => 20'11"
1100 * Backslash escaping is also supported.
1102 * Input timestamp is assumed to be pre-normalized to the desired local
1103 * time zone, if any. Note that the format characters crUeIOPTZ will assume
1104 * $ts is UTC if $zone is not given.
1106 * @param $format String
1107 * @param $ts String: 14-character timestamp
1108 * YYYYMMDDHHMMSS
1109 * 01234567890123
1110 * @param $zone DateTimeZone: Timezone of $ts
1111 * @todo handling of "o" format character for Iranian, Hebrew, Hijri & Thai?
1113 * @throws MWException
1114 * @return string
1116 function sprintfDate( $format, $ts, DateTimeZone $zone = null ) {
1117 $s = '';
1118 $raw = false;
1119 $roman = false;
1120 $hebrewNum = false;
1121 $dateTimeObj = false;
1122 $rawToggle = false;
1123 $iranian = false;
1124 $hebrew = false;
1125 $hijri = false;
1126 $thai = false;
1127 $minguo = false;
1128 $tenno = false;
1130 if ( strlen( $ts ) !== 14 ) {
1131 throw new MWException( __METHOD__ . ": The timestamp $ts should have 14 characters" );
1134 if ( !ctype_digit( $ts ) ) {
1135 throw new MWException( __METHOD__ . ": The timestamp $ts should be a number" );
1138 for ( $p = 0; $p < strlen( $format ); $p++ ) {
1139 $num = false;
1140 $code = $format[$p];
1141 if ( $code == 'x' && $p < strlen( $format ) - 1 ) {
1142 $code .= $format[++$p];
1145 if ( ( $code === 'xi' || $code == 'xj' || $code == 'xk' || $code == 'xm' || $code == 'xo' || $code == 'xt' ) && $p < strlen( $format ) - 1 ) {
1146 $code .= $format[++$p];
1149 switch ( $code ) {
1150 case 'xx':
1151 $s .= 'x';
1152 break;
1153 case 'xn':
1154 $raw = true;
1155 break;
1156 case 'xN':
1157 $rawToggle = !$rawToggle;
1158 break;
1159 case 'xr':
1160 $roman = true;
1161 break;
1162 case 'xh':
1163 $hebrewNum = true;
1164 break;
1165 case 'xg':
1166 $s .= $this->getMonthNameGen( substr( $ts, 4, 2 ) );
1167 break;
1168 case 'xjx':
1169 if ( !$hebrew ) {
1170 $hebrew = self::tsToHebrew( $ts );
1172 $s .= $this->getHebrewCalendarMonthNameGen( $hebrew[1] );
1173 break;
1174 case 'd':
1175 $num = substr( $ts, 6, 2 );
1176 break;
1177 case 'D':
1178 if ( !$dateTimeObj ) {
1179 $dateTimeObj = DateTime::createFromFormat(
1180 'YmdHis', $ts, $zone ?: new DateTimeZone( 'UTC' )
1183 $s .= $this->getWeekdayAbbreviation( $dateTimeObj->format( 'w' ) + 1 );
1184 break;
1185 case 'j':
1186 $num = intval( substr( $ts, 6, 2 ) );
1187 break;
1188 case 'xij':
1189 if ( !$iranian ) {
1190 $iranian = self::tsToIranian( $ts );
1192 $num = $iranian[2];
1193 break;
1194 case 'xmj':
1195 if ( !$hijri ) {
1196 $hijri = self::tsToHijri( $ts );
1198 $num = $hijri[2];
1199 break;
1200 case 'xjj':
1201 if ( !$hebrew ) {
1202 $hebrew = self::tsToHebrew( $ts );
1204 $num = $hebrew[2];
1205 break;
1206 case 'l':
1207 if ( !$dateTimeObj ) {
1208 $dateTimeObj = DateTime::createFromFormat(
1209 'YmdHis', $ts, $zone ?: new DateTimeZone( 'UTC' )
1212 $s .= $this->getWeekdayName( $dateTimeObj->format( 'w' ) + 1 );
1213 break;
1214 case 'F':
1215 $s .= $this->getMonthName( substr( $ts, 4, 2 ) );
1216 break;
1217 case 'xiF':
1218 if ( !$iranian ) {
1219 $iranian = self::tsToIranian( $ts );
1221 $s .= $this->getIranianCalendarMonthName( $iranian[1] );
1222 break;
1223 case 'xmF':
1224 if ( !$hijri ) {
1225 $hijri = self::tsToHijri( $ts );
1227 $s .= $this->getHijriCalendarMonthName( $hijri[1] );
1228 break;
1229 case 'xjF':
1230 if ( !$hebrew ) {
1231 $hebrew = self::tsToHebrew( $ts );
1233 $s .= $this->getHebrewCalendarMonthName( $hebrew[1] );
1234 break;
1235 case 'm':
1236 $num = substr( $ts, 4, 2 );
1237 break;
1238 case 'M':
1239 $s .= $this->getMonthAbbreviation( substr( $ts, 4, 2 ) );
1240 break;
1241 case 'n':
1242 $num = intval( substr( $ts, 4, 2 ) );
1243 break;
1244 case 'xin':
1245 if ( !$iranian ) {
1246 $iranian = self::tsToIranian( $ts );
1248 $num = $iranian[1];
1249 break;
1250 case 'xmn':
1251 if ( !$hijri ) {
1252 $hijri = self::tsToHijri ( $ts );
1254 $num = $hijri[1];
1255 break;
1256 case 'xjn':
1257 if ( !$hebrew ) {
1258 $hebrew = self::tsToHebrew( $ts );
1260 $num = $hebrew[1];
1261 break;
1262 case 'xjt':
1263 if ( !$hebrew ) {
1264 $hebrew = self::tsToHebrew( $ts );
1266 $num = $hebrew[3];
1267 break;
1268 case 'Y':
1269 $num = substr( $ts, 0, 4 );
1270 break;
1271 case 'xiY':
1272 if ( !$iranian ) {
1273 $iranian = self::tsToIranian( $ts );
1275 $num = $iranian[0];
1276 break;
1277 case 'xmY':
1278 if ( !$hijri ) {
1279 $hijri = self::tsToHijri( $ts );
1281 $num = $hijri[0];
1282 break;
1283 case 'xjY':
1284 if ( !$hebrew ) {
1285 $hebrew = self::tsToHebrew( $ts );
1287 $num = $hebrew[0];
1288 break;
1289 case 'xkY':
1290 if ( !$thai ) {
1291 $thai = self::tsToYear( $ts, 'thai' );
1293 $num = $thai[0];
1294 break;
1295 case 'xoY':
1296 if ( !$minguo ) {
1297 $minguo = self::tsToYear( $ts, 'minguo' );
1299 $num = $minguo[0];
1300 break;
1301 case 'xtY':
1302 if ( !$tenno ) {
1303 $tenno = self::tsToYear( $ts, 'tenno' );
1305 $num = $tenno[0];
1306 break;
1307 case 'y':
1308 $num = substr( $ts, 2, 2 );
1309 break;
1310 case 'xiy':
1311 if ( !$iranian ) {
1312 $iranian = self::tsToIranian( $ts );
1314 $num = substr( $iranian[0], -2 );
1315 break;
1316 case 'a':
1317 $s .= intval( substr( $ts, 8, 2 ) ) < 12 ? 'am' : 'pm';
1318 break;
1319 case 'A':
1320 $s .= intval( substr( $ts, 8, 2 ) ) < 12 ? 'AM' : 'PM';
1321 break;
1322 case 'g':
1323 $h = substr( $ts, 8, 2 );
1324 $num = $h % 12 ? $h % 12 : 12;
1325 break;
1326 case 'G':
1327 $num = intval( substr( $ts, 8, 2 ) );
1328 break;
1329 case 'h':
1330 $h = substr( $ts, 8, 2 );
1331 $num = sprintf( '%02d', $h % 12 ? $h % 12 : 12 );
1332 break;
1333 case 'H':
1334 $num = substr( $ts, 8, 2 );
1335 break;
1336 case 'i':
1337 $num = substr( $ts, 10, 2 );
1338 break;
1339 case 's':
1340 $num = substr( $ts, 12, 2 );
1341 break;
1342 case 'c':
1343 case 'r':
1344 case 'e':
1345 case 'O':
1346 case 'P':
1347 case 'T':
1348 // Pass through string from $dateTimeObj->format()
1349 if ( !$dateTimeObj ) {
1350 $dateTimeObj = DateTime::createFromFormat(
1351 'YmdHis', $ts, $zone ?: new DateTimeZone( 'UTC' )
1354 $s .= $dateTimeObj->format( $code );
1355 break;
1356 case 'w':
1357 case 'N':
1358 case 'z':
1359 case 'W':
1360 case 't':
1361 case 'L':
1362 case 'o':
1363 case 'U':
1364 case 'I':
1365 case 'Z':
1366 // Pass through number from $dateTimeObj->format()
1367 if ( !$dateTimeObj ) {
1368 $dateTimeObj = DateTime::createFromFormat(
1369 'YmdHis', $ts, $zone ?: new DateTimeZone( 'UTC' )
1372 $num = $dateTimeObj->format( $code );
1373 break;
1374 case '\\':
1375 # Backslash escaping
1376 if ( $p < strlen( $format ) - 1 ) {
1377 $s .= $format[++$p];
1378 } else {
1379 $s .= '\\';
1381 break;
1382 case '"':
1383 # Quoted literal
1384 if ( $p < strlen( $format ) - 1 ) {
1385 $endQuote = strpos( $format, '"', $p + 1 );
1386 if ( $endQuote === false ) {
1387 # No terminating quote, assume literal "
1388 $s .= '"';
1389 } else {
1390 $s .= substr( $format, $p + 1, $endQuote - $p - 1 );
1391 $p = $endQuote;
1393 } else {
1394 # Quote at end of string, assume literal "
1395 $s .= '"';
1397 break;
1398 default:
1399 $s .= $format[$p];
1401 if ( $num !== false ) {
1402 if ( $rawToggle || $raw ) {
1403 $s .= $num;
1404 $raw = false;
1405 } elseif ( $roman ) {
1406 $s .= Language::romanNumeral( $num );
1407 $roman = false;
1408 } elseif ( $hebrewNum ) {
1409 $s .= self::hebrewNumeral( $num );
1410 $hebrewNum = false;
1411 } else {
1412 $s .= $this->formatNum( $num, true );
1416 return $s;
1419 private static $GREG_DAYS = array( 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 );
1420 private static $IRANIAN_DAYS = array( 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29 );
1423 * Algorithm by Roozbeh Pournader and Mohammad Toossi to convert
1424 * Gregorian dates to Iranian dates. Originally written in C, it
1425 * is released under the terms of GNU Lesser General Public
1426 * License. Conversion to PHP was performed by Niklas Laxström.
1428 * Link: http://www.farsiweb.info/jalali/jalali.c
1430 * @param $ts string
1432 * @return string
1434 private static function tsToIranian( $ts ) {
1435 $gy = substr( $ts, 0, 4 ) -1600;
1436 $gm = substr( $ts, 4, 2 ) -1;
1437 $gd = substr( $ts, 6, 2 ) -1;
1439 # Days passed from the beginning (including leap years)
1440 $gDayNo = 365 * $gy
1441 + floor( ( $gy + 3 ) / 4 )
1442 - floor( ( $gy + 99 ) / 100 )
1443 + floor( ( $gy + 399 ) / 400 );
1445 // Add days of the past months of this year
1446 for ( $i = 0; $i < $gm; $i++ ) {
1447 $gDayNo += self::$GREG_DAYS[$i];
1450 // Leap years
1451 if ( $gm > 1 && ( ( $gy % 4 === 0 && $gy % 100 !== 0 || ( $gy % 400 == 0 ) ) ) ) {
1452 $gDayNo++;
1455 // Days passed in current month
1456 $gDayNo += (int)$gd;
1458 $jDayNo = $gDayNo - 79;
1460 $jNp = floor( $jDayNo / 12053 );
1461 $jDayNo %= 12053;
1463 $jy = 979 + 33 * $jNp + 4 * floor( $jDayNo / 1461 );
1464 $jDayNo %= 1461;
1466 if ( $jDayNo >= 366 ) {
1467 $jy += floor( ( $jDayNo - 1 ) / 365 );
1468 $jDayNo = floor( ( $jDayNo - 1 ) % 365 );
1471 for ( $i = 0; $i < 11 && $jDayNo >= self::$IRANIAN_DAYS[$i]; $i++ ) {
1472 $jDayNo -= self::$IRANIAN_DAYS[$i];
1475 $jm = $i + 1;
1476 $jd = $jDayNo + 1;
1478 return array( $jy, $jm, $jd );
1482 * Converting Gregorian dates to Hijri dates.
1484 * Based on a PHP-Nuke block by Sharjeel which is released under GNU/GPL license
1486 * @see http://phpnuke.org/modules.php?name=News&file=article&sid=8234&mode=thread&order=0&thold=0
1488 * @param $ts string
1490 * @return string
1492 private static function tsToHijri( $ts ) {
1493 $year = substr( $ts, 0, 4 );
1494 $month = substr( $ts, 4, 2 );
1495 $day = substr( $ts, 6, 2 );
1497 $zyr = $year;
1498 $zd = $day;
1499 $zm = $month;
1500 $zy = $zyr;
1502 if (
1503 ( $zy > 1582 ) || ( ( $zy == 1582 ) && ( $zm > 10 ) ) ||
1504 ( ( $zy == 1582 ) && ( $zm == 10 ) && ( $zd > 14 ) )
1506 $zjd = (int)( ( 1461 * ( $zy + 4800 + (int)( ( $zm - 14 ) / 12 ) ) ) / 4 ) +
1507 (int)( ( 367 * ( $zm - 2 - 12 * ( (int)( ( $zm - 14 ) / 12 ) ) ) ) / 12 ) -
1508 (int)( ( 3 * (int)( ( ( $zy + 4900 + (int)( ( $zm - 14 ) / 12 ) ) / 100 ) ) ) / 4 ) +
1509 $zd - 32075;
1510 } else {
1511 $zjd = 367 * $zy - (int)( ( 7 * ( $zy + 5001 + (int)( ( $zm - 9 ) / 7 ) ) ) / 4 ) +
1512 (int)( ( 275 * $zm ) / 9 ) + $zd + 1729777;
1515 $zl = $zjd -1948440 + 10632;
1516 $zn = (int)( ( $zl - 1 ) / 10631 );
1517 $zl = $zl - 10631 * $zn + 354;
1518 $zj = ( (int)( ( 10985 - $zl ) / 5316 ) ) * ( (int)( ( 50 * $zl ) / 17719 ) ) + ( (int)( $zl / 5670 ) ) * ( (int)( ( 43 * $zl ) / 15238 ) );
1519 $zl = $zl - ( (int)( ( 30 - $zj ) / 15 ) ) * ( (int)( ( 17719 * $zj ) / 50 ) ) - ( (int)( $zj / 16 ) ) * ( (int)( ( 15238 * $zj ) / 43 ) ) + 29;
1520 $zm = (int)( ( 24 * $zl ) / 709 );
1521 $zd = $zl - (int)( ( 709 * $zm ) / 24 );
1522 $zy = 30 * $zn + $zj - 30;
1524 return array( $zy, $zm, $zd );
1528 * Converting Gregorian dates to Hebrew dates.
1530 * Based on a JavaScript code by Abu Mami and Yisrael Hersch
1531 * (abu-mami@kaluach.net, http://www.kaluach.net), who permitted
1532 * to translate the relevant functions into PHP and release them under
1533 * GNU GPL.
1535 * The months are counted from Tishrei = 1. In a leap year, Adar I is 13
1536 * and Adar II is 14. In a non-leap year, Adar is 6.
1538 * @param $ts string
1540 * @return string
1542 private static function tsToHebrew( $ts ) {
1543 # Parse date
1544 $year = substr( $ts, 0, 4 );
1545 $month = substr( $ts, 4, 2 );
1546 $day = substr( $ts, 6, 2 );
1548 # Calculate Hebrew year
1549 $hebrewYear = $year + 3760;
1551 # Month number when September = 1, August = 12
1552 $month += 4;
1553 if ( $month > 12 ) {
1554 # Next year
1555 $month -= 12;
1556 $year++;
1557 $hebrewYear++;
1560 # Calculate day of year from 1 September
1561 $dayOfYear = $day;
1562 for ( $i = 1; $i < $month; $i++ ) {
1563 if ( $i == 6 ) {
1564 # February
1565 $dayOfYear += 28;
1566 # Check if the year is leap
1567 if ( $year % 400 == 0 || ( $year % 4 == 0 && $year % 100 > 0 ) ) {
1568 $dayOfYear++;
1570 } elseif ( $i == 8 || $i == 10 || $i == 1 || $i == 3 ) {
1571 $dayOfYear += 30;
1572 } else {
1573 $dayOfYear += 31;
1577 # Calculate the start of the Hebrew year
1578 $start = self::hebrewYearStart( $hebrewYear );
1580 # Calculate next year's start
1581 if ( $dayOfYear <= $start ) {
1582 # Day is before the start of the year - it is the previous year
1583 # Next year's start
1584 $nextStart = $start;
1585 # Previous year
1586 $year--;
1587 $hebrewYear--;
1588 # Add days since previous year's 1 September
1589 $dayOfYear += 365;
1590 if ( ( $year % 400 == 0 ) || ( $year % 100 != 0 && $year % 4 == 0 ) ) {
1591 # Leap year
1592 $dayOfYear++;
1594 # Start of the new (previous) year
1595 $start = self::hebrewYearStart( $hebrewYear );
1596 } else {
1597 # Next year's start
1598 $nextStart = self::hebrewYearStart( $hebrewYear + 1 );
1601 # Calculate Hebrew day of year
1602 $hebrewDayOfYear = $dayOfYear - $start;
1604 # Difference between year's days
1605 $diff = $nextStart - $start;
1606 # Add 12 (or 13 for leap years) days to ignore the difference between
1607 # Hebrew and Gregorian year (353 at least vs. 365/6) - now the
1608 # difference is only about the year type
1609 if ( ( $year % 400 == 0 ) || ( $year % 100 != 0 && $year % 4 == 0 ) ) {
1610 $diff += 13;
1611 } else {
1612 $diff += 12;
1615 # Check the year pattern, and is leap year
1616 # 0 means an incomplete year, 1 means a regular year, 2 means a complete year
1617 # This is mod 30, to work on both leap years (which add 30 days of Adar I)
1618 # and non-leap years
1619 $yearPattern = $diff % 30;
1620 # Check if leap year
1621 $isLeap = $diff >= 30;
1623 # Calculate day in the month from number of day in the Hebrew year
1624 # Don't check Adar - if the day is not in Adar, we will stop before;
1625 # if it is in Adar, we will use it to check if it is Adar I or Adar II
1626 $hebrewDay = $hebrewDayOfYear;
1627 $hebrewMonth = 1;
1628 $days = 0;
1629 while ( $hebrewMonth <= 12 ) {
1630 # Calculate days in this month
1631 if ( $isLeap && $hebrewMonth == 6 ) {
1632 # Adar in a leap year
1633 if ( $isLeap ) {
1634 # Leap year - has Adar I, with 30 days, and Adar II, with 29 days
1635 $days = 30;
1636 if ( $hebrewDay <= $days ) {
1637 # Day in Adar I
1638 $hebrewMonth = 13;
1639 } else {
1640 # Subtract the days of Adar I
1641 $hebrewDay -= $days;
1642 # Try Adar II
1643 $days = 29;
1644 if ( $hebrewDay <= $days ) {
1645 # Day in Adar II
1646 $hebrewMonth = 14;
1650 } elseif ( $hebrewMonth == 2 && $yearPattern == 2 ) {
1651 # Cheshvan in a complete year (otherwise as the rule below)
1652 $days = 30;
1653 } elseif ( $hebrewMonth == 3 && $yearPattern == 0 ) {
1654 # Kislev in an incomplete year (otherwise as the rule below)
1655 $days = 29;
1656 } else {
1657 # Odd months have 30 days, even have 29
1658 $days = 30 - ( $hebrewMonth - 1 ) % 2;
1660 if ( $hebrewDay <= $days ) {
1661 # In the current month
1662 break;
1663 } else {
1664 # Subtract the days of the current month
1665 $hebrewDay -= $days;
1666 # Try in the next month
1667 $hebrewMonth++;
1671 return array( $hebrewYear, $hebrewMonth, $hebrewDay, $days );
1675 * This calculates the Hebrew year start, as days since 1 September.
1676 * Based on Carl Friedrich Gauss algorithm for finding Easter date.
1677 * Used for Hebrew date.
1679 * @param $year int
1681 * @return string
1683 private static function hebrewYearStart( $year ) {
1684 $a = intval( ( 12 * ( $year - 1 ) + 17 ) % 19 );
1685 $b = intval( ( $year - 1 ) % 4 );
1686 $m = 32.044093161144 + 1.5542417966212 * $a + $b / 4.0 - 0.0031777940220923 * ( $year - 1 );
1687 if ( $m < 0 ) {
1688 $m--;
1690 $Mar = intval( $m );
1691 if ( $m < 0 ) {
1692 $m++;
1694 $m -= $Mar;
1696 $c = intval( ( $Mar + 3 * ( $year - 1 ) + 5 * $b + 5 ) % 7 );
1697 if ( $c == 0 && $a > 11 && $m >= 0.89772376543210 ) {
1698 $Mar++;
1699 } elseif ( $c == 1 && $a > 6 && $m >= 0.63287037037037 ) {
1700 $Mar += 2;
1701 } elseif ( $c == 2 || $c == 4 || $c == 6 ) {
1702 $Mar++;
1705 $Mar += intval( ( $year - 3761 ) / 100 ) - intval( ( $year - 3761 ) / 400 ) - 24;
1706 return $Mar;
1710 * Algorithm to convert Gregorian dates to Thai solar dates,
1711 * Minguo dates or Minguo dates.
1713 * Link: http://en.wikipedia.org/wiki/Thai_solar_calendar
1714 * http://en.wikipedia.org/wiki/Minguo_calendar
1715 * http://en.wikipedia.org/wiki/Japanese_era_name
1717 * @param $ts String: 14-character timestamp
1718 * @param $cName String: calender name
1719 * @return Array: converted year, month, day
1721 private static function tsToYear( $ts, $cName ) {
1722 $gy = substr( $ts, 0, 4 );
1723 $gm = substr( $ts, 4, 2 );
1724 $gd = substr( $ts, 6, 2 );
1726 if ( !strcmp( $cName, 'thai' ) ) {
1727 # Thai solar dates
1728 # Add 543 years to the Gregorian calendar
1729 # Months and days are identical
1730 $gy_offset = $gy + 543;
1731 } elseif ( ( !strcmp( $cName, 'minguo' ) ) || !strcmp( $cName, 'juche' ) ) {
1732 # Minguo dates
1733 # Deduct 1911 years from the Gregorian calendar
1734 # Months and days are identical
1735 $gy_offset = $gy - 1911;
1736 } elseif ( !strcmp( $cName, 'tenno' ) ) {
1737 # Nengō dates up to Meiji period
1738 # Deduct years from the Gregorian calendar
1739 # depending on the nengo periods
1740 # Months and days are identical
1741 if ( ( $gy < 1912 ) || ( ( $gy == 1912 ) && ( $gm < 7 ) ) || ( ( $gy == 1912 ) && ( $gm == 7 ) && ( $gd < 31 ) ) ) {
1742 # Meiji period
1743 $gy_gannen = $gy - 1868 + 1;
1744 $gy_offset = $gy_gannen;
1745 if ( $gy_gannen == 1 ) {
1746 $gy_offset = '元';
1748 $gy_offset = '明治' . $gy_offset;
1749 } elseif (
1750 ( ( $gy == 1912 ) && ( $gm == 7 ) && ( $gd == 31 ) ) ||
1751 ( ( $gy == 1912 ) && ( $gm >= 8 ) ) ||
1752 ( ( $gy > 1912 ) && ( $gy < 1926 ) ) ||
1753 ( ( $gy == 1926 ) && ( $gm < 12 ) ) ||
1754 ( ( $gy == 1926 ) && ( $gm == 12 ) && ( $gd < 26 ) )
1756 # Taishō period
1757 $gy_gannen = $gy - 1912 + 1;
1758 $gy_offset = $gy_gannen;
1759 if ( $gy_gannen == 1 ) {
1760 $gy_offset = '元';
1762 $gy_offset = '大正' . $gy_offset;
1763 } elseif (
1764 ( ( $gy == 1926 ) && ( $gm == 12 ) && ( $gd >= 26 ) ) ||
1765 ( ( $gy > 1926 ) && ( $gy < 1989 ) ) ||
1766 ( ( $gy == 1989 ) && ( $gm == 1 ) && ( $gd < 8 ) )
1768 # Shōwa period
1769 $gy_gannen = $gy - 1926 + 1;
1770 $gy_offset = $gy_gannen;
1771 if ( $gy_gannen == 1 ) {
1772 $gy_offset = '元';
1774 $gy_offset = '昭和' . $gy_offset;
1775 } else {
1776 # Heisei period
1777 $gy_gannen = $gy - 1989 + 1;
1778 $gy_offset = $gy_gannen;
1779 if ( $gy_gannen == 1 ) {
1780 $gy_offset = '元';
1782 $gy_offset = '平成' . $gy_offset;
1784 } else {
1785 $gy_offset = $gy;
1788 return array( $gy_offset, $gm, $gd );
1792 * Roman number formatting up to 10000
1794 * @param $num int
1796 * @return string
1798 static function romanNumeral( $num ) {
1799 static $table = array(
1800 array( '', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX', 'X' ),
1801 array( '', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC', 'C' ),
1802 array( '', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM', 'M' ),
1803 array( '', 'M', 'MM', 'MMM', 'MMMM', 'MMMMM', 'MMMMMM', 'MMMMMMM', 'MMMMMMMM', 'MMMMMMMMM', 'MMMMMMMMMM' )
1806 $num = intval( $num );
1807 if ( $num > 10000 || $num <= 0 ) {
1808 return $num;
1811 $s = '';
1812 for ( $pow10 = 1000, $i = 3; $i >= 0; $pow10 /= 10, $i-- ) {
1813 if ( $num >= $pow10 ) {
1814 $s .= $table[$i][(int)floor( $num / $pow10 )];
1816 $num = $num % $pow10;
1818 return $s;
1822 * Hebrew Gematria number formatting up to 9999
1824 * @param $num int
1826 * @return string
1828 static function hebrewNumeral( $num ) {
1829 static $table = array(
1830 array( '', 'א', 'ב', 'ג', 'ד', 'ה', 'ו', 'ז', 'ח', 'ט', 'י' ),
1831 array( '', 'י', 'כ', 'ל', 'מ', 'נ', 'ס', 'ע', 'פ', 'צ', 'ק' ),
1832 array( '', 'ק', 'ר', 'ש', 'ת', 'תק', 'תר', 'תש', 'תת', 'תתק', 'תתר' ),
1833 array( '', 'א', 'ב', 'ג', 'ד', 'ה', 'ו', 'ז', 'ח', 'ט', 'י' )
1836 $num = intval( $num );
1837 if ( $num > 9999 || $num <= 0 ) {
1838 return $num;
1841 $s = '';
1842 for ( $pow10 = 1000, $i = 3; $i >= 0; $pow10 /= 10, $i-- ) {
1843 if ( $num >= $pow10 ) {
1844 if ( $num == 15 || $num == 16 ) {
1845 $s .= $table[0][9] . $table[0][$num - 9];
1846 $num = 0;
1847 } else {
1848 $s .= $table[$i][intval( ( $num / $pow10 ) )];
1849 if ( $pow10 == 1000 ) {
1850 $s .= "'";
1854 $num = $num % $pow10;
1856 if ( strlen( $s ) == 2 ) {
1857 $str = $s . "'";
1858 } else {
1859 $str = substr( $s, 0, strlen( $s ) - 2 ) . '"';
1860 $str .= substr( $s, strlen( $s ) - 2, 2 );
1862 $start = substr( $str, 0, strlen( $str ) - 2 );
1863 $end = substr( $str, strlen( $str ) - 2 );
1864 switch ( $end ) {
1865 case 'כ':
1866 $str = $start . 'ך';
1867 break;
1868 case 'מ':
1869 $str = $start . 'ם';
1870 break;
1871 case 'נ':
1872 $str = $start . 'ן';
1873 break;
1874 case 'פ':
1875 $str = $start . 'ף';
1876 break;
1877 case 'צ':
1878 $str = $start . 'ץ';
1879 break;
1881 return $str;
1885 * Used by date() and time() to adjust the time output.
1887 * @param $ts Int the time in date('YmdHis') format
1888 * @param $tz Mixed: adjust the time by this amount (default false, mean we
1889 * get user timecorrection setting)
1890 * @return int
1892 function userAdjust( $ts, $tz = false ) {
1893 global $wgUser, $wgLocalTZoffset;
1895 if ( $tz === false ) {
1896 $tz = $wgUser->getOption( 'timecorrection' );
1899 $data = explode( '|', $tz, 3 );
1901 if ( $data[0] == 'ZoneInfo' ) {
1902 wfSuppressWarnings();
1903 $userTZ = timezone_open( $data[2] );
1904 wfRestoreWarnings();
1905 if ( $userTZ !== false ) {
1906 $date = date_create( $ts, timezone_open( 'UTC' ) );
1907 date_timezone_set( $date, $userTZ );
1908 $date = date_format( $date, 'YmdHis' );
1909 return $date;
1911 # Unrecognized timezone, default to 'Offset' with the stored offset.
1912 $data[0] = 'Offset';
1915 $minDiff = 0;
1916 if ( $data[0] == 'System' || $tz == '' ) {
1917 #  Global offset in minutes.
1918 if ( isset( $wgLocalTZoffset ) ) {
1919 $minDiff = $wgLocalTZoffset;
1921 } elseif ( $data[0] == 'Offset' ) {
1922 $minDiff = intval( $data[1] );
1923 } else {
1924 $data = explode( ':', $tz );
1925 if ( count( $data ) == 2 ) {
1926 $data[0] = intval( $data[0] );
1927 $data[1] = intval( $data[1] );
1928 $minDiff = abs( $data[0] ) * 60 + $data[1];
1929 if ( $data[0] < 0 ) {
1930 $minDiff = -$minDiff;
1932 } else {
1933 $minDiff = intval( $data[0] ) * 60;
1937 # No difference ? Return time unchanged
1938 if ( 0 == $minDiff ) {
1939 return $ts;
1942 wfSuppressWarnings(); // E_STRICT system time bitching
1943 # Generate an adjusted date; take advantage of the fact that mktime
1944 # will normalize out-of-range values so we don't have to split $minDiff
1945 # into hours and minutes.
1946 $t = mktime( (
1947 (int)substr( $ts, 8, 2 ) ), # Hours
1948 (int)substr( $ts, 10, 2 ) + $minDiff, # Minutes
1949 (int)substr( $ts, 12, 2 ), # Seconds
1950 (int)substr( $ts, 4, 2 ), # Month
1951 (int)substr( $ts, 6, 2 ), # Day
1952 (int)substr( $ts, 0, 4 ) ); # Year
1954 $date = date( 'YmdHis', $t );
1955 wfRestoreWarnings();
1957 return $date;
1961 * This is meant to be used by time(), date(), and timeanddate() to get
1962 * the date preference they're supposed to use, it should be used in
1963 * all children.
1965 *<code>
1966 * function timeanddate([...], $format = true) {
1967 * $datePreference = $this->dateFormat($format);
1968 * [...]
1970 *</code>
1972 * @param $usePrefs Mixed: if true, the user's preference is used
1973 * if false, the site/language default is used
1974 * if int/string, assumed to be a format.
1975 * @return string
1977 function dateFormat( $usePrefs = true ) {
1978 global $wgUser;
1980 if ( is_bool( $usePrefs ) ) {
1981 if ( $usePrefs ) {
1982 $datePreference = $wgUser->getDatePreference();
1983 } else {
1984 $datePreference = (string)User::getDefaultOption( 'date' );
1986 } else {
1987 $datePreference = (string)$usePrefs;
1990 // return int
1991 if ( $datePreference == '' ) {
1992 return 'default';
1995 return $datePreference;
1999 * Get a format string for a given type and preference
2000 * @param $type string May be date, time or both
2001 * @param $pref string The format name as it appears in Messages*.php
2003 * @since 1.22 New type 'pretty' that provides a more readable timestamp format
2005 * @return string
2007 function getDateFormatString( $type, $pref ) {
2008 if ( !isset( $this->dateFormatStrings[$type][$pref] ) ) {
2009 if ( $pref == 'default' ) {
2010 $pref = $this->getDefaultDateFormat();
2011 $df = self::$dataCache->getSubitem( $this->mCode, 'dateFormats', "$pref $type" );
2012 } else {
2013 $df = self::$dataCache->getSubitem( $this->mCode, 'dateFormats', "$pref $type" );
2015 if ( $type === 'pretty' && $df === null ) {
2016 $df = $this->getDateFormatString( 'date', $pref );
2019 if ( $df === null ) {
2020 $pref = $this->getDefaultDateFormat();
2021 $df = self::$dataCache->getSubitem( $this->mCode, 'dateFormats', "$pref $type" );
2024 $this->dateFormatStrings[$type][$pref] = $df;
2026 return $this->dateFormatStrings[$type][$pref];
2030 * @param $ts Mixed: the time format which needs to be turned into a
2031 * date('YmdHis') format with wfTimestamp(TS_MW,$ts)
2032 * @param $adj Bool: whether to adjust the time output according to the
2033 * user configured offset ($timecorrection)
2034 * @param $format Mixed: true to use user's date format preference
2035 * @param $timecorrection String|bool the time offset as returned by
2036 * validateTimeZone() in Special:Preferences
2037 * @return string
2039 function date( $ts, $adj = false, $format = true, $timecorrection = false ) {
2040 $ts = wfTimestamp( TS_MW, $ts );
2041 if ( $adj ) {
2042 $ts = $this->userAdjust( $ts, $timecorrection );
2044 $df = $this->getDateFormatString( 'date', $this->dateFormat( $format ) );
2045 return $this->sprintfDate( $df, $ts );
2049 * @param $ts Mixed: the time format which needs to be turned into a
2050 * date('YmdHis') format with wfTimestamp(TS_MW,$ts)
2051 * @param $adj Bool: whether to adjust the time output according to the
2052 * user configured offset ($timecorrection)
2053 * @param $format Mixed: true to use user's date format preference
2054 * @param $timecorrection String|bool the time offset as returned by
2055 * validateTimeZone() in Special:Preferences
2056 * @return string
2058 function time( $ts, $adj = false, $format = true, $timecorrection = false ) {
2059 $ts = wfTimestamp( TS_MW, $ts );
2060 if ( $adj ) {
2061 $ts = $this->userAdjust( $ts, $timecorrection );
2063 $df = $this->getDateFormatString( 'time', $this->dateFormat( $format ) );
2064 return $this->sprintfDate( $df, $ts );
2068 * @param $ts Mixed: the time format which needs to be turned into a
2069 * date('YmdHis') format with wfTimestamp(TS_MW,$ts)
2070 * @param $adj Bool: whether to adjust the time output according to the
2071 * user configured offset ($timecorrection)
2072 * @param $format Mixed: what format to return, if it's false output the
2073 * default one (default true)
2074 * @param $timecorrection String|bool the time offset as returned by
2075 * validateTimeZone() in Special:Preferences
2076 * @return string
2078 function timeanddate( $ts, $adj = false, $format = true, $timecorrection = false ) {
2079 $ts = wfTimestamp( TS_MW, $ts );
2080 if ( $adj ) {
2081 $ts = $this->userAdjust( $ts, $timecorrection );
2083 $df = $this->getDateFormatString( 'both', $this->dateFormat( $format ) );
2084 return $this->sprintfDate( $df, $ts );
2088 * Takes a number of seconds and turns it into a text using values such as hours and minutes.
2090 * @since 1.20
2092 * @param integer $seconds The amount of seconds.
2093 * @param array $chosenIntervals The intervals to enable.
2095 * @return string
2097 public function formatDuration( $seconds, array $chosenIntervals = array() ) {
2098 $intervals = $this->getDurationIntervals( $seconds, $chosenIntervals );
2100 $segments = array();
2102 foreach ( $intervals as $intervalName => $intervalValue ) {
2103 // Messages: duration-seconds, duration-minutes, duration-hours, duration-days, duration-weeks,
2104 // duration-years, duration-decades, duration-centuries, duration-millennia
2105 $message = wfMessage( 'duration-' . $intervalName )->numParams( $intervalValue );
2106 $segments[] = $message->inLanguage( $this )->escaped();
2109 return $this->listToText( $segments );
2113 * Takes a number of seconds and returns an array with a set of corresponding intervals.
2114 * For example 65 will be turned into array( minutes => 1, seconds => 5 ).
2116 * @since 1.20
2118 * @param integer $seconds The amount of seconds.
2119 * @param array $chosenIntervals The intervals to enable.
2121 * @return array
2123 public function getDurationIntervals( $seconds, array $chosenIntervals = array() ) {
2124 if ( empty( $chosenIntervals ) ) {
2125 $chosenIntervals = array( 'millennia', 'centuries', 'decades', 'years', 'days', 'hours', 'minutes', 'seconds' );
2128 $intervals = array_intersect_key( self::$durationIntervals, array_flip( $chosenIntervals ) );
2129 $sortedNames = array_keys( $intervals );
2130 $smallestInterval = array_pop( $sortedNames );
2132 $segments = array();
2134 foreach ( $intervals as $name => $length ) {
2135 $value = floor( $seconds / $length );
2137 if ( $value > 0 || ( $name == $smallestInterval && empty( $segments ) ) ) {
2138 $seconds -= $value * $length;
2139 $segments[$name] = $value;
2143 return $segments;
2147 * Internal helper function for userDate(), userTime() and userTimeAndDate()
2149 * @param $type String: can be 'date', 'time' or 'both'
2150 * @param $ts Mixed: the time format which needs to be turned into a
2151 * date('YmdHis') format with wfTimestamp(TS_MW,$ts)
2152 * @param $user User object used to get preferences for timezone and format
2153 * @param $options Array, can contain the following keys:
2154 * - 'timecorrection': time correction, can have the following values:
2155 * - true: use user's preference
2156 * - false: don't use time correction
2157 * - integer: value of time correction in minutes
2158 * - 'format': format to use, can have the following values:
2159 * - true: use user's preference
2160 * - false: use default preference
2161 * - string: format to use
2162 * @since 1.19
2163 * @return String
2165 private function internalUserTimeAndDate( $type, $ts, User $user, array $options ) {
2166 $ts = wfTimestamp( TS_MW, $ts );
2167 $options += array( 'timecorrection' => true, 'format' => true );
2168 if ( $options['timecorrection'] !== false ) {
2169 if ( $options['timecorrection'] === true ) {
2170 $offset = $user->getOption( 'timecorrection' );
2171 } else {
2172 $offset = $options['timecorrection'];
2174 $ts = $this->userAdjust( $ts, $offset );
2176 if ( $options['format'] === true ) {
2177 $format = $user->getDatePreference();
2178 } else {
2179 $format = $options['format'];
2181 $df = $this->getDateFormatString( $type, $this->dateFormat( $format ) );
2182 return $this->sprintfDate( $df, $ts );
2186 * Get the formatted date for the given timestamp and formatted for
2187 * the given user.
2189 * @param $ts Mixed: the time format which needs to be turned into a
2190 * date('YmdHis') format with wfTimestamp(TS_MW,$ts)
2191 * @param $user User object used to get preferences for timezone and format
2192 * @param $options Array, can contain the following keys:
2193 * - 'timecorrection': time correction, can have the following values:
2194 * - true: use user's preference
2195 * - false: don't use time correction
2196 * - integer: value of time correction in minutes
2197 * - 'format': format to use, can have the following values:
2198 * - true: use user's preference
2199 * - false: use default preference
2200 * - string: format to use
2201 * @since 1.19
2202 * @return String
2204 public function userDate( $ts, User $user, array $options = array() ) {
2205 return $this->internalUserTimeAndDate( 'date', $ts, $user, $options );
2209 * Get the formatted time for the given timestamp and formatted for
2210 * the given user.
2212 * @param $ts Mixed: the time format which needs to be turned into a
2213 * date('YmdHis') format with wfTimestamp(TS_MW,$ts)
2214 * @param $user User object used to get preferences for timezone and format
2215 * @param $options Array, can contain the following keys:
2216 * - 'timecorrection': time correction, can have the following values:
2217 * - true: use user's preference
2218 * - false: don't use time correction
2219 * - integer: value of time correction in minutes
2220 * - 'format': format to use, can have the following values:
2221 * - true: use user's preference
2222 * - false: use default preference
2223 * - string: format to use
2224 * @since 1.19
2225 * @return String
2227 public function userTime( $ts, User $user, array $options = array() ) {
2228 return $this->internalUserTimeAndDate( 'time', $ts, $user, $options );
2232 * Get the formatted date and time for the given timestamp and formatted for
2233 * the given user.
2235 * @param $ts Mixed: the time format which needs to be turned into a
2236 * date('YmdHis') format with wfTimestamp(TS_MW,$ts)
2237 * @param $user User object used to get preferences for timezone and format
2238 * @param $options Array, can contain the following keys:
2239 * - 'timecorrection': time correction, can have the following values:
2240 * - true: use user's preference
2241 * - false: don't use time correction
2242 * - integer: value of time correction in minutes
2243 * - 'format': format to use, can have the following values:
2244 * - true: use user's preference
2245 * - false: use default preference
2246 * - string: format to use
2247 * @since 1.19
2248 * @return String
2250 public function userTimeAndDate( $ts, User $user, array $options = array() ) {
2251 return $this->internalUserTimeAndDate( 'both', $ts, $user, $options );
2255 * Convert an MWTimestamp into a pretty human-readable timestamp using
2256 * the given user preferences and relative base time.
2258 * DO NOT USE THIS FUNCTION DIRECTLY. Instead, call MWTimestamp::getHumanTimestamp
2259 * on your timestamp object, which will then call this function. Calling
2260 * this function directly will cause hooks to be skipped over.
2262 * @see MWTimestamp::getHumanTimestamp
2263 * @param MWTimestamp $ts Timestamp to prettify
2264 * @param MWTimestamp $relativeTo Base timestamp
2265 * @param User $user User preferences to use
2266 * @return string Human timestamp
2267 * @since 1.22
2269 public function getHumanTimestamp( MWTimestamp $ts, MWTimestamp $relativeTo, User $user ) {
2270 $diff = $ts->diff( $relativeTo );
2271 $diffDay = (bool)( (int)$ts->timestamp->format( 'w' ) - (int)$relativeTo->timestamp->format( 'w' ) );
2272 $days = $diff->days ?: (int)$diffDay;
2273 if ( $diff->invert || $days > 5 && $ts->timestamp->format( 'Y' ) !== $relativeTo->timestamp->format( 'Y' ) ) {
2274 // Timestamps are in different years: use full timestamp
2275 // Also do full timestamp for future dates
2277 * @FIXME Add better handling of future timestamps.
2279 $format = $this->getDateFormatString( 'both', $user->getDatePreference() ?: 'default' );
2280 $ts = $this->sprintfDate( $format, $ts->getTimestamp( TS_MW ) );
2281 } elseif ( $days > 5 ) {
2282 // Timestamps are in same year, but more than 5 days ago: show day and month only.
2283 $format = $this->getDateFormatString( 'pretty', $user->getDatePreference() ?: 'default' );
2284 $ts = $this->sprintfDate( $format, $ts->getTimestamp( TS_MW ) );
2285 } elseif ( $days > 1 ) {
2286 // Timestamp within the past week: show the day of the week and time
2287 $format = $this->getDateFormatString( 'time', $user->getDatePreference() ?: 'default' );
2288 $weekday = self::$mWeekdayMsgs[$ts->timestamp->format( 'w' )];
2289 // Messages:
2290 // sunday-at, monday-at, tuesday-at, wednesday-at, thursday-at, friday-at, saturday-at
2291 $ts = wfMessage( "$weekday-at" )
2292 ->inLanguage( $this )
2293 ->params( $this->sprintfDate( $format, $ts->getTimestamp( TS_MW ) ) )
2294 ->text();
2295 } elseif ( $days == 1 ) {
2296 // Timestamp was yesterday: say 'yesterday' and the time.
2297 $format = $this->getDateFormatString( 'time', $user->getDatePreference() ?: 'default' );
2298 $ts = wfMessage( 'yesterday-at' )
2299 ->inLanguage( $this )
2300 ->params( $this->sprintfDate( $format, $ts->getTimestamp( TS_MW ) ) )
2301 ->text();
2302 } elseif ( $diff->h > 1 || $diff->h == 1 && $diff->i > 30 ) {
2303 // Timestamp was today, but more than 90 minutes ago: say 'today' and the time.
2304 $format = $this->getDateFormatString( 'time', $user->getDatePreference() ?: 'default' );
2305 $ts = wfMessage( 'today-at' )
2306 ->inLanguage( $this )
2307 ->params( $this->sprintfDate( $format, $ts->getTimestamp( TS_MW ) ) )
2308 ->text();
2310 // From here on in, the timestamp was soon enough ago so that we can simply say
2311 // XX units ago, e.g., "2 hours ago" or "5 minutes ago"
2312 } elseif ( $diff->h == 1 ) {
2313 // Less than 90 minutes, but more than an hour ago.
2314 $ts = wfMessage( 'hours-ago' )->inLanguage( $this )->numParams( 1 )->text();
2315 } elseif ( $diff->i >= 1 ) {
2316 // A few minutes ago.
2317 $ts = wfMessage( 'minutes-ago' )->inLanguage( $this )->numParams( $diff->i )->text();
2318 } elseif ( $diff->s >= 30 ) {
2319 // Less than a minute, but more than 30 sec ago.
2320 $ts = wfMessage( 'seconds-ago' )->inLanguage( $this )->numParams( $diff->s )->text();
2321 } else {
2322 // Less than 30 seconds ago.
2323 $ts = wfMessage( 'just-now' )->text();
2326 return $ts;
2330 * @param $key string
2331 * @return array|null
2333 function getMessage( $key ) {
2334 return self::$dataCache->getSubitem( $this->mCode, 'messages', $key );
2338 * @return array
2340 function getAllMessages() {
2341 return self::$dataCache->getItem( $this->mCode, 'messages' );
2345 * @param $in
2346 * @param $out
2347 * @param $string
2348 * @return string
2350 function iconv( $in, $out, $string ) {
2351 # This is a wrapper for iconv in all languages except esperanto,
2352 # which does some nasty x-conversions beforehand
2354 # Even with //IGNORE iconv can whine about illegal characters in
2355 # *input* string. We just ignore those too.
2356 # REF: http://bugs.php.net/bug.php?id=37166
2357 # REF: https://bugzilla.wikimedia.org/show_bug.cgi?id=16885
2358 wfSuppressWarnings();
2359 $text = iconv( $in, $out . '//IGNORE', $string );
2360 wfRestoreWarnings();
2361 return $text;
2364 // callback functions for uc(), lc(), ucwords(), ucwordbreaks()
2367 * @param $matches array
2368 * @return mixed|string
2370 function ucwordbreaksCallbackAscii( $matches ) {
2371 return $this->ucfirst( $matches[1] );
2375 * @param $matches array
2376 * @return string
2378 function ucwordbreaksCallbackMB( $matches ) {
2379 return mb_strtoupper( $matches[0] );
2383 * @param $matches array
2384 * @return string
2386 function ucCallback( $matches ) {
2387 list( $wikiUpperChars ) = self::getCaseMaps();
2388 return strtr( $matches[1], $wikiUpperChars );
2392 * @param $matches array
2393 * @return string
2395 function lcCallback( $matches ) {
2396 list( , $wikiLowerChars ) = self::getCaseMaps();
2397 return strtr( $matches[1], $wikiLowerChars );
2401 * @param $matches array
2402 * @return string
2404 function ucwordsCallbackMB( $matches ) {
2405 return mb_strtoupper( $matches[0] );
2409 * @param $matches array
2410 * @return string
2412 function ucwordsCallbackWiki( $matches ) {
2413 list( $wikiUpperChars ) = self::getCaseMaps();
2414 return strtr( $matches[0], $wikiUpperChars );
2418 * Make a string's first character uppercase
2420 * @param $str string
2422 * @return string
2424 function ucfirst( $str ) {
2425 $o = ord( $str );
2426 if ( $o < 96 ) { // if already uppercase...
2427 return $str;
2428 } elseif ( $o < 128 ) {
2429 return ucfirst( $str ); // use PHP's ucfirst()
2430 } else {
2431 // fall back to more complex logic in case of multibyte strings
2432 return $this->uc( $str, true );
2437 * Convert a string to uppercase
2439 * @param $str string
2440 * @param $first bool
2442 * @return string
2444 function uc( $str, $first = false ) {
2445 if ( function_exists( 'mb_strtoupper' ) ) {
2446 if ( $first ) {
2447 if ( $this->isMultibyte( $str ) ) {
2448 return mb_strtoupper( mb_substr( $str, 0, 1 ) ) . mb_substr( $str, 1 );
2449 } else {
2450 return ucfirst( $str );
2452 } else {
2453 return $this->isMultibyte( $str ) ? mb_strtoupper( $str ) : strtoupper( $str );
2455 } else {
2456 if ( $this->isMultibyte( $str ) ) {
2457 $x = $first ? '^' : '';
2458 return preg_replace_callback(
2459 "/$x([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)/",
2460 array( $this, 'ucCallback' ),
2461 $str
2463 } else {
2464 return $first ? ucfirst( $str ) : strtoupper( $str );
2470 * @param $str string
2471 * @return mixed|string
2473 function lcfirst( $str ) {
2474 $o = ord( $str );
2475 if ( !$o ) {
2476 return strval( $str );
2477 } elseif ( $o >= 128 ) {
2478 return $this->lc( $str, true );
2479 } elseif ( $o > 96 ) {
2480 return $str;
2481 } else {
2482 $str[0] = strtolower( $str[0] );
2483 return $str;
2488 * @param $str string
2489 * @param $first bool
2490 * @return mixed|string
2492 function lc( $str, $first = false ) {
2493 if ( function_exists( 'mb_strtolower' ) ) {
2494 if ( $first ) {
2495 if ( $this->isMultibyte( $str ) ) {
2496 return mb_strtolower( mb_substr( $str, 0, 1 ) ) . mb_substr( $str, 1 );
2497 } else {
2498 return strtolower( substr( $str, 0, 1 ) ) . substr( $str, 1 );
2500 } else {
2501 return $this->isMultibyte( $str ) ? mb_strtolower( $str ) : strtolower( $str );
2503 } else {
2504 if ( $this->isMultibyte( $str ) ) {
2505 $x = $first ? '^' : '';
2506 return preg_replace_callback(
2507 "/$x([A-Z]|[\\xc0-\\xff][\\x80-\\xbf]*)/",
2508 array( $this, 'lcCallback' ),
2509 $str
2511 } else {
2512 return $first ? strtolower( substr( $str, 0, 1 ) ) . substr( $str, 1 ) : strtolower( $str );
2518 * @param $str string
2519 * @return bool
2521 function isMultibyte( $str ) {
2522 return (bool)preg_match( '/[\x80-\xff]/', $str );
2526 * @param $str string
2527 * @return mixed|string
2529 function ucwords( $str ) {
2530 if ( $this->isMultibyte( $str ) ) {
2531 $str = $this->lc( $str );
2533 // regexp to find first letter in each word (i.e. after each space)
2534 $replaceRegexp = "/^([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)| ([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)/";
2536 // function to use to capitalize a single char
2537 if ( function_exists( 'mb_strtoupper' ) ) {
2538 return preg_replace_callback(
2539 $replaceRegexp,
2540 array( $this, 'ucwordsCallbackMB' ),
2541 $str
2543 } else {
2544 return preg_replace_callback(
2545 $replaceRegexp,
2546 array( $this, 'ucwordsCallbackWiki' ),
2547 $str
2550 } else {
2551 return ucwords( strtolower( $str ) );
2556 * capitalize words at word breaks
2558 * @param $str string
2559 * @return mixed
2561 function ucwordbreaks( $str ) {
2562 if ( $this->isMultibyte( $str ) ) {
2563 $str = $this->lc( $str );
2565 // since \b doesn't work for UTF-8, we explicitely define word break chars
2566 $breaks = "[ \-\(\)\}\{\.,\?!]";
2568 // find first letter after word break
2569 $replaceRegexp = "/^([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)|$breaks([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)/";
2571 if ( function_exists( 'mb_strtoupper' ) ) {
2572 return preg_replace_callback(
2573 $replaceRegexp,
2574 array( $this, 'ucwordbreaksCallbackMB' ),
2575 $str
2577 } else {
2578 return preg_replace_callback(
2579 $replaceRegexp,
2580 array( $this, 'ucwordsCallbackWiki' ),
2581 $str
2584 } else {
2585 return preg_replace_callback(
2586 '/\b([\w\x80-\xff]+)\b/',
2587 array( $this, 'ucwordbreaksCallbackAscii' ),
2588 $str
2594 * Return a case-folded representation of $s
2596 * This is a representation such that caseFold($s1)==caseFold($s2) if $s1
2597 * and $s2 are the same except for the case of their characters. It is not
2598 * necessary for the value returned to make sense when displayed.
2600 * Do *not* perform any other normalisation in this function. If a caller
2601 * uses this function when it should be using a more general normalisation
2602 * function, then fix the caller.
2604 * @param $s string
2606 * @return string
2608 function caseFold( $s ) {
2609 return $this->uc( $s );
2613 * @param $s string
2614 * @return string
2616 function checkTitleEncoding( $s ) {
2617 if ( is_array( $s ) ) {
2618 throw new MWException( 'Given array to checkTitleEncoding.' );
2620 if ( StringUtils::isUtf8( $s ) ) {
2621 return $s;
2624 return $this->iconv( $this->fallback8bitEncoding(), 'utf-8', $s );
2628 * @return array
2630 function fallback8bitEncoding() {
2631 return self::$dataCache->getItem( $this->mCode, 'fallback8bitEncoding' );
2635 * Most writing systems use whitespace to break up words.
2636 * Some languages such as Chinese don't conventionally do this,
2637 * which requires special handling when breaking up words for
2638 * searching etc.
2640 * @return bool
2642 function hasWordBreaks() {
2643 return true;
2647 * Some languages such as Chinese require word segmentation,
2648 * Specify such segmentation when overridden in derived class.
2650 * @param $string String
2651 * @return String
2653 function segmentByWord( $string ) {
2654 return $string;
2658 * Some languages have special punctuation need to be normalized.
2659 * Make such changes here.
2661 * @param $string String
2662 * @return String
2664 function normalizeForSearch( $string ) {
2665 return self::convertDoubleWidth( $string );
2669 * convert double-width roman characters to single-width.
2670 * range: ff00-ff5f ~= 0020-007f
2672 * @param $string string
2674 * @return string
2676 protected static function convertDoubleWidth( $string ) {
2677 static $full = null;
2678 static $half = null;
2680 if ( $full === null ) {
2681 $fullWidth = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
2682 $halfWidth = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
2683 $full = str_split( $fullWidth, 3 );
2684 $half = str_split( $halfWidth );
2687 $string = str_replace( $full, $half, $string );
2688 return $string;
2692 * @param $string string
2693 * @param $pattern string
2694 * @return string
2696 protected static function insertSpace( $string, $pattern ) {
2697 $string = preg_replace( $pattern, " $1 ", $string );
2698 $string = preg_replace( '/ +/', ' ', $string );
2699 return $string;
2703 * @param $termsArray array
2704 * @return array
2706 function convertForSearchResult( $termsArray ) {
2707 # some languages, e.g. Chinese, need to do a conversion
2708 # in order for search results to be displayed correctly
2709 return $termsArray;
2713 * Get the first character of a string.
2715 * @param $s string
2716 * @return string
2718 function firstChar( $s ) {
2719 $matches = array();
2720 preg_match(
2721 '/^([\x00-\x7f]|[\xc0-\xdf][\x80-\xbf]|' .
2722 '[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xf7][\x80-\xbf]{3})/',
2724 $matches
2727 if ( isset( $matches[1] ) ) {
2728 if ( strlen( $matches[1] ) != 3 ) {
2729 return $matches[1];
2732 // Break down Hangul syllables to grab the first jamo
2733 $code = utf8ToCodepoint( $matches[1] );
2734 if ( $code < 0xac00 || 0xd7a4 <= $code ) {
2735 return $matches[1];
2736 } elseif ( $code < 0xb098 ) {
2737 return "\xe3\x84\xb1";
2738 } elseif ( $code < 0xb2e4 ) {
2739 return "\xe3\x84\xb4";
2740 } elseif ( $code < 0xb77c ) {
2741 return "\xe3\x84\xb7";
2742 } elseif ( $code < 0xb9c8 ) {
2743 return "\xe3\x84\xb9";
2744 } elseif ( $code < 0xbc14 ) {
2745 return "\xe3\x85\x81";
2746 } elseif ( $code < 0xc0ac ) {
2747 return "\xe3\x85\x82";
2748 } elseif ( $code < 0xc544 ) {
2749 return "\xe3\x85\x85";
2750 } elseif ( $code < 0xc790 ) {
2751 return "\xe3\x85\x87";
2752 } elseif ( $code < 0xcc28 ) {
2753 return "\xe3\x85\x88";
2754 } elseif ( $code < 0xce74 ) {
2755 return "\xe3\x85\x8a";
2756 } elseif ( $code < 0xd0c0 ) {
2757 return "\xe3\x85\x8b";
2758 } elseif ( $code < 0xd30c ) {
2759 return "\xe3\x85\x8c";
2760 } elseif ( $code < 0xd558 ) {
2761 return "\xe3\x85\x8d";
2762 } else {
2763 return "\xe3\x85\x8e";
2765 } else {
2766 return '';
2770 function initEncoding() {
2771 # Some languages may have an alternate char encoding option
2772 # (Esperanto X-coding, Japanese furigana conversion, etc)
2773 # If this language is used as the primary content language,
2774 # an override to the defaults can be set here on startup.
2778 * @param $s string
2779 * @return string
2781 function recodeForEdit( $s ) {
2782 # For some languages we'll want to explicitly specify
2783 # which characters make it into the edit box raw
2784 # or are converted in some way or another.
2785 global $wgEditEncoding;
2786 if ( $wgEditEncoding == '' || $wgEditEncoding == 'UTF-8' ) {
2787 return $s;
2788 } else {
2789 return $this->iconv( 'UTF-8', $wgEditEncoding, $s );
2794 * @param $s string
2795 * @return string
2797 function recodeInput( $s ) {
2798 # Take the previous into account.
2799 global $wgEditEncoding;
2800 if ( $wgEditEncoding != '' ) {
2801 $enc = $wgEditEncoding;
2802 } else {
2803 $enc = 'UTF-8';
2805 if ( $enc == 'UTF-8' ) {
2806 return $s;
2807 } else {
2808 return $this->iconv( $enc, 'UTF-8', $s );
2813 * Convert a UTF-8 string to normal form C. In Malayalam and Arabic, this
2814 * also cleans up certain backwards-compatible sequences, converting them
2815 * to the modern Unicode equivalent.
2817 * This is language-specific for performance reasons only.
2819 * @param $s string
2821 * @return string
2823 function normalize( $s ) {
2824 global $wgAllUnicodeFixes;
2825 $s = UtfNormal::cleanUp( $s );
2826 if ( $wgAllUnicodeFixes ) {
2827 $s = $this->transformUsingPairFile( 'normalize-ar.ser', $s );
2828 $s = $this->transformUsingPairFile( 'normalize-ml.ser', $s );
2831 return $s;
2835 * Transform a string using serialized data stored in the given file (which
2836 * must be in the serialized subdirectory of $IP). The file contains pairs
2837 * mapping source characters to destination characters.
2839 * The data is cached in process memory. This will go faster if you have the
2840 * FastStringSearch extension.
2842 * @param $file string
2843 * @param $string string
2845 * @throws MWException
2846 * @return string
2848 function transformUsingPairFile( $file, $string ) {
2849 if ( !isset( $this->transformData[$file] ) ) {
2850 $data = wfGetPrecompiledData( $file );
2851 if ( $data === false ) {
2852 throw new MWException( __METHOD__ . ": The transformation file $file is missing" );
2854 $this->transformData[$file] = new ReplacementArray( $data );
2856 return $this->transformData[$file]->replace( $string );
2860 * For right-to-left language support
2862 * @return bool
2864 function isRTL() {
2865 return self::$dataCache->getItem( $this->mCode, 'rtl' );
2869 * Return the correct HTML 'dir' attribute value for this language.
2870 * @return String
2872 function getDir() {
2873 return $this->isRTL() ? 'rtl' : 'ltr';
2877 * Return 'left' or 'right' as appropriate alignment for line-start
2878 * for this language's text direction.
2880 * Should be equivalent to CSS3 'start' text-align value....
2882 * @return String
2884 function alignStart() {
2885 return $this->isRTL() ? 'right' : 'left';
2889 * Return 'right' or 'left' as appropriate alignment for line-end
2890 * for this language's text direction.
2892 * Should be equivalent to CSS3 'end' text-align value....
2894 * @return String
2896 function alignEnd() {
2897 return $this->isRTL() ? 'left' : 'right';
2901 * A hidden direction mark (LRM or RLM), depending on the language direction.
2902 * Unlike getDirMark(), this function returns the character as an HTML entity.
2903 * This function should be used when the output is guaranteed to be HTML,
2904 * because it makes the output HTML source code more readable. When
2905 * the output is plain text or can be escaped, getDirMark() should be used.
2907 * @param $opposite Boolean Get the direction mark opposite to your language
2908 * @return string
2909 * @since 1.20
2911 function getDirMarkEntity( $opposite = false ) {
2912 if ( $opposite ) {
2913 return $this->isRTL() ? '&lrm;' : '&rlm;';
2915 return $this->isRTL() ? '&rlm;' : '&lrm;';
2919 * A hidden direction mark (LRM or RLM), depending on the language direction.
2920 * This function produces them as invisible Unicode characters and
2921 * the output may be hard to read and debug, so it should only be used
2922 * when the output is plain text or can be escaped. When the output is
2923 * HTML, use getDirMarkEntity() instead.
2925 * @param $opposite Boolean Get the direction mark opposite to your language
2926 * @return string
2928 function getDirMark( $opposite = false ) {
2929 $lrm = "\xE2\x80\x8E"; # LEFT-TO-RIGHT MARK, commonly abbreviated LRM
2930 $rlm = "\xE2\x80\x8F"; # RIGHT-TO-LEFT MARK, commonly abbreviated RLM
2931 if ( $opposite ) {
2932 return $this->isRTL() ? $lrm : $rlm;
2934 return $this->isRTL() ? $rlm : $lrm;
2938 * @return array
2940 function capitalizeAllNouns() {
2941 return self::$dataCache->getItem( $this->mCode, 'capitalizeAllNouns' );
2945 * An arrow, depending on the language direction.
2947 * @param $direction String: the direction of the arrow: forwards (default), backwards, left, right, up, down.
2948 * @return string
2950 function getArrow( $direction = 'forwards' ) {
2951 switch ( $direction ) {
2952 case 'forwards':
2953 return $this->isRTL() ? '←' : '→';
2954 case 'backwards':
2955 return $this->isRTL() ? '→' : '←';
2956 case 'left':
2957 return '←';
2958 case 'right':
2959 return '→';
2960 case 'up':
2961 return '↑';
2962 case 'down':
2963 return '↓';
2968 * To allow "foo[[bar]]" to extend the link over the whole word "foobar"
2970 * @return bool
2972 function linkPrefixExtension() {
2973 return self::$dataCache->getItem( $this->mCode, 'linkPrefixExtension' );
2977 * Get all magic words from cache.
2978 * @return array
2980 function getMagicWords() {
2981 return self::$dataCache->getItem( $this->mCode, 'magicWords' );
2985 * Run the LanguageGetMagic hook once.
2987 protected function doMagicHook() {
2988 if ( $this->mMagicHookDone ) {
2989 return;
2991 $this->mMagicHookDone = true;
2992 wfProfileIn( 'LanguageGetMagic' );
2993 wfRunHooks( 'LanguageGetMagic', array( &$this->mMagicExtensions, $this->getCode() ) );
2994 wfProfileOut( 'LanguageGetMagic' );
2998 * Fill a MagicWord object with data from here
3000 * @param $mw
3002 function getMagic( $mw ) {
3003 // Saves a function call
3004 if ( ! $this->mMagicHookDone ) {
3005 $this->doMagicHook();
3008 if ( isset( $this->mMagicExtensions[$mw->mId] ) ) {
3009 $rawEntry = $this->mMagicExtensions[$mw->mId];
3010 } else {
3011 $rawEntry = self::$dataCache->getSubitem(
3012 $this->mCode, 'magicWords', $mw->mId );
3015 if ( !is_array( $rawEntry ) ) {
3016 error_log( "\"$rawEntry\" is not a valid magic word for \"$mw->mId\"" );
3017 } else {
3018 $mw->mCaseSensitive = $rawEntry[0];
3019 $mw->mSynonyms = array_slice( $rawEntry, 1 );
3024 * Add magic words to the extension array
3026 * @param $newWords array
3028 function addMagicWordsByLang( $newWords ) {
3029 $fallbackChain = $this->getFallbackLanguages();
3030 $fallbackChain = array_reverse( $fallbackChain );
3031 foreach ( $fallbackChain as $code ) {
3032 if ( isset( $newWords[$code] ) ) {
3033 $this->mMagicExtensions = $newWords[$code] + $this->mMagicExtensions;
3039 * Get special page names, as an associative array
3040 * case folded alias => real name
3042 function getSpecialPageAliases() {
3043 // Cache aliases because it may be slow to load them
3044 if ( is_null( $this->mExtendedSpecialPageAliases ) ) {
3045 // Initialise array
3046 $this->mExtendedSpecialPageAliases =
3047 self::$dataCache->getItem( $this->mCode, 'specialPageAliases' );
3048 wfRunHooks( 'LanguageGetSpecialPageAliases',
3049 array( &$this->mExtendedSpecialPageAliases, $this->getCode() ) );
3052 return $this->mExtendedSpecialPageAliases;
3056 * Italic is unsuitable for some languages
3058 * @param $text String: the text to be emphasized.
3059 * @return string
3061 function emphasize( $text ) {
3062 return "<em>$text</em>";
3066 * Normally we output all numbers in plain en_US style, that is
3067 * 293,291.235 for twohundredninetythreethousand-twohundredninetyone
3068 * point twohundredthirtyfive. However this is not suitable for all
3069 * languages, some such as Punjabi want ੨੯੩,੨੯੫.੨੩੫ and others such as
3070 * Icelandic just want to use commas instead of dots, and dots instead
3071 * of commas like "293.291,235".
3073 * An example of this function being called:
3074 * <code>
3075 * wfMessage( 'message' )->numParams( $num )->text()
3076 * </code>
3078 * See LanguageGu.php for the Gujarati implementation and
3079 * $separatorTransformTable on MessageIs.php for
3080 * the , => . and . => , implementation.
3082 * @todo check if it's viable to use localeconv() for the decimal
3083 * separator thing.
3084 * @param $number Mixed: the string to be formatted, should be an integer
3085 * or a floating point number.
3086 * @param $nocommafy Bool: set to true for special numbers like dates
3087 * @return string
3089 public function formatNum( $number, $nocommafy = false ) {
3090 global $wgTranslateNumerals;
3091 if ( !$nocommafy ) {
3092 $number = $this->commafy( $number );
3093 $s = $this->separatorTransformTable();
3094 if ( $s ) {
3095 $number = strtr( $number, $s );
3099 if ( $wgTranslateNumerals ) {
3100 $s = $this->digitTransformTable();
3101 if ( $s ) {
3102 $number = strtr( $number, $s );
3106 return $number;
3110 * Front-end for non-commafied formatNum
3112 * @param mixed $number the string to be formatted, should be an integer
3113 * or a floating point number.
3114 * @since 1.21
3115 * @return string
3117 public function formatNumNoSeparators( $number ) {
3118 return $this->formatNum( $number, true );
3122 * @param $number string
3123 * @return string
3125 function parseFormattedNumber( $number ) {
3126 $s = $this->digitTransformTable();
3127 if ( $s ) {
3128 $number = strtr( $number, array_flip( $s ) );
3131 $s = $this->separatorTransformTable();
3132 if ( $s ) {
3133 $number = strtr( $number, array_flip( $s ) );
3136 $number = strtr( $number, array( ',' => '' ) );
3137 return $number;
3141 * Adds commas to a given number
3142 * @since 1.19
3143 * @param $number mixed
3144 * @return string
3146 function commafy( $number ) {
3147 $digitGroupingPattern = $this->digitGroupingPattern();
3148 if ( $number === null ) {
3149 return '';
3152 if ( !$digitGroupingPattern || $digitGroupingPattern === "###,###,###" ) {
3153 // default grouping is at thousands, use the same for ###,###,### pattern too.
3154 return strrev( (string)preg_replace( '/(\d{3})(?=\d)(?!\d*\.)/', '$1,', strrev( $number ) ) );
3155 } else {
3156 // Ref: http://cldr.unicode.org/translation/number-patterns
3157 $sign = "";
3158 if ( intval( $number ) < 0 ) {
3159 // For negative numbers apply the algorithm like positive number and add sign.
3160 $sign = "-";
3161 $number = substr( $number, 1 );
3163 $integerPart = array();
3164 $decimalPart = array();
3165 $numMatches = preg_match_all( "/(#+)/", $digitGroupingPattern, $matches );
3166 preg_match( "/\d+/", $number, $integerPart );
3167 preg_match( "/\.\d*/", $number, $decimalPart );
3168 $groupedNumber = ( count( $decimalPart ) > 0 ) ? $decimalPart[0] : "";
3169 if ( $groupedNumber === $number ) {
3170 // the string does not have any number part. Eg: .12345
3171 return $sign . $groupedNumber;
3173 $start = $end = strlen( $integerPart[0] );
3174 while ( $start > 0 ) {
3175 $match = $matches[0][$numMatches - 1];
3176 $matchLen = strlen( $match );
3177 $start = $end - $matchLen;
3178 if ( $start < 0 ) {
3179 $start = 0;
3181 $groupedNumber = substr( $number, $start, $end -$start ) . $groupedNumber;
3182 $end = $start;
3183 if ( $numMatches > 1 ) {
3184 // use the last pattern for the rest of the number
3185 $numMatches--;
3187 if ( $start > 0 ) {
3188 $groupedNumber = "," . $groupedNumber;
3191 return $sign . $groupedNumber;
3196 * @return String
3198 function digitGroupingPattern() {
3199 return self::$dataCache->getItem( $this->mCode, 'digitGroupingPattern' );
3203 * @return array
3205 function digitTransformTable() {
3206 return self::$dataCache->getItem( $this->mCode, 'digitTransformTable' );
3210 * @return array
3212 function separatorTransformTable() {
3213 return self::$dataCache->getItem( $this->mCode, 'separatorTransformTable' );
3217 * Take a list of strings and build a locale-friendly comma-separated
3218 * list, using the local comma-separator message.
3219 * The last two strings are chained with an "and".
3220 * NOTE: This function will only work with standard numeric array keys (0, 1, 2…)
3222 * @param $l Array
3223 * @return string
3225 function listToText( array $l ) {
3226 $m = count( $l ) - 1;
3227 if ( $m < 0 ) {
3228 return '';
3230 if ( $m > 0 ) {
3231 $and = $this->getMessageFromDB( 'and' );
3232 $space = $this->getMessageFromDB( 'word-separator' );
3233 if ( $m > 1 ) {
3234 $comma = $this->getMessageFromDB( 'comma-separator' );
3237 $s = $l[$m];
3238 for ( $i = $m - 1; $i >= 0; $i-- ) {
3239 if ( $i == $m - 1 ) {
3240 $s = $l[$i] . $and . $space . $s;
3241 } else {
3242 $s = $l[$i] . $comma . $s;
3245 return $s;
3249 * Take a list of strings and build a locale-friendly comma-separated
3250 * list, using the local comma-separator message.
3251 * @param $list array of strings to put in a comma list
3252 * @return string
3254 function commaList( array $list ) {
3255 return implode(
3256 wfMessage( 'comma-separator' )->inLanguage( $this )->escaped(),
3257 $list
3262 * Take a list of strings and build a locale-friendly semicolon-separated
3263 * list, using the local semicolon-separator message.
3264 * @param $list array of strings to put in a semicolon list
3265 * @return string
3267 function semicolonList( array $list ) {
3268 return implode(
3269 wfMessage( 'semicolon-separator' )->inLanguage( $this )->escaped(),
3270 $list
3275 * Same as commaList, but separate it with the pipe instead.
3276 * @param $list array of strings to put in a pipe list
3277 * @return string
3279 function pipeList( array $list ) {
3280 return implode(
3281 wfMessage( 'pipe-separator' )->inLanguage( $this )->escaped(),
3282 $list
3287 * Truncate a string to a specified length in bytes, appending an optional
3288 * string (e.g. for ellipses)
3290 * The database offers limited byte lengths for some columns in the database;
3291 * multi-byte character sets mean we need to ensure that only whole characters
3292 * are included, otherwise broken characters can be passed to the user
3294 * If $length is negative, the string will be truncated from the beginning
3296 * @param $string String to truncate
3297 * @param $length Int: maximum length (including ellipses)
3298 * @param $ellipsis String to append to the truncated text
3299 * @param $adjustLength Boolean: Subtract length of ellipsis from $length.
3300 * $adjustLength was introduced in 1.18, before that behaved as if false.
3301 * @return string
3303 function truncate( $string, $length, $ellipsis = '...', $adjustLength = true ) {
3304 # Use the localized ellipsis character
3305 if ( $ellipsis == '...' ) {
3306 $ellipsis = wfMessage( 'ellipsis' )->inLanguage( $this )->escaped();
3308 # Check if there is no need to truncate
3309 if ( $length == 0 ) {
3310 return $ellipsis; // convention
3311 } elseif ( strlen( $string ) <= abs( $length ) ) {
3312 return $string; // no need to truncate
3314 $stringOriginal = $string;
3315 # If ellipsis length is >= $length then we can't apply $adjustLength
3316 if ( $adjustLength && strlen( $ellipsis ) >= abs( $length ) ) {
3317 $string = $ellipsis; // this can be slightly unexpected
3318 # Otherwise, truncate and add ellipsis...
3319 } else {
3320 $eLength = $adjustLength ? strlen( $ellipsis ) : 0;
3321 if ( $length > 0 ) {
3322 $length -= $eLength;
3323 $string = substr( $string, 0, $length ); // xyz...
3324 $string = $this->removeBadCharLast( $string );
3325 $string = rtrim( $string );
3326 $string = $string . $ellipsis;
3327 } else {
3328 $length += $eLength;
3329 $string = substr( $string, $length ); // ...xyz
3330 $string = $this->removeBadCharFirst( $string );
3331 $string = ltrim( $string );
3332 $string = $ellipsis . $string;
3335 # Do not truncate if the ellipsis makes the string longer/equal (bug 22181).
3336 # This check is *not* redundant if $adjustLength, due to the single case where
3337 # LEN($ellipsis) > ABS($limit arg); $stringOriginal could be shorter than $string.
3338 if ( strlen( $string ) < strlen( $stringOriginal ) ) {
3339 return $string;
3340 } else {
3341 return $stringOriginal;
3346 * Remove bytes that represent an incomplete Unicode character
3347 * at the end of string (e.g. bytes of the char are missing)
3349 * @param $string String
3350 * @return string
3352 protected function removeBadCharLast( $string ) {
3353 if ( $string != '' ) {
3354 $char = ord( $string[strlen( $string ) - 1] );
3355 $m = array();
3356 if ( $char >= 0xc0 ) {
3357 # We got the first byte only of a multibyte char; remove it.
3358 $string = substr( $string, 0, -1 );
3359 } elseif ( $char >= 0x80 &&
3360 preg_match( '/^(.*)(?:[\xe0-\xef][\x80-\xbf]|' .
3361 '[\xf0-\xf7][\x80-\xbf]{1,2})$/', $string, $m )
3363 # We chopped in the middle of a character; remove it
3364 $string = $m[1];
3367 return $string;
3371 * Remove bytes that represent an incomplete Unicode character
3372 * at the start of string (e.g. bytes of the char are missing)
3374 * @param $string String
3375 * @return string
3377 protected function removeBadCharFirst( $string ) {
3378 if ( $string != '' ) {
3379 $char = ord( $string[0] );
3380 if ( $char >= 0x80 && $char < 0xc0 ) {
3381 # We chopped in the middle of a character; remove the whole thing
3382 $string = preg_replace( '/^[\x80-\xbf]+/', '', $string );
3385 return $string;
3389 * Truncate a string of valid HTML to a specified length in bytes,
3390 * appending an optional string (e.g. for ellipses), and return valid HTML
3392 * This is only intended for styled/linked text, such as HTML with
3393 * tags like <span> and <a>, were the tags are self-contained (valid HTML).
3394 * Also, this will not detect things like "display:none" CSS.
3396 * Note: since 1.18 you do not need to leave extra room in $length for ellipses.
3398 * @param string $text HTML string to truncate
3399 * @param int $length (zero/positive) Maximum length (including ellipses)
3400 * @param string $ellipsis String to append to the truncated text
3401 * @return string
3403 function truncateHtml( $text, $length, $ellipsis = '...' ) {
3404 # Use the localized ellipsis character
3405 if ( $ellipsis == '...' ) {
3406 $ellipsis = wfMessage( 'ellipsis' )->inLanguage( $this )->escaped();
3408 # Check if there is clearly no need to truncate
3409 if ( $length <= 0 ) {
3410 return $ellipsis; // no text shown, nothing to format (convention)
3411 } elseif ( strlen( $text ) <= $length ) {
3412 return $text; // string short enough even *with* HTML (short-circuit)
3415 $dispLen = 0; // innerHTML legth so far
3416 $testingEllipsis = false; // checking if ellipses will make string longer/equal?
3417 $tagType = 0; // 0-open, 1-close
3418 $bracketState = 0; // 1-tag start, 2-tag name, 0-neither
3419 $entityState = 0; // 0-not entity, 1-entity
3420 $tag = $ret = ''; // accumulated tag name, accumulated result string
3421 $openTags = array(); // open tag stack
3422 $maybeState = null; // possible truncation state
3424 $textLen = strlen( $text );
3425 $neLength = max( 0, $length - strlen( $ellipsis ) ); // non-ellipsis len if truncated
3426 for ( $pos = 0; true; ++$pos ) {
3427 # Consider truncation once the display length has reached the maximim.
3428 # We check if $dispLen > 0 to grab tags for the $neLength = 0 case.
3429 # Check that we're not in the middle of a bracket/entity...
3430 if ( $dispLen && $dispLen >= $neLength && $bracketState == 0 && !$entityState ) {
3431 if ( !$testingEllipsis ) {
3432 $testingEllipsis = true;
3433 # Save where we are; we will truncate here unless there turn out to
3434 # be so few remaining characters that truncation is not necessary.
3435 if ( !$maybeState ) { // already saved? ($neLength = 0 case)
3436 $maybeState = array( $ret, $openTags ); // save state
3438 } elseif ( $dispLen > $length && $dispLen > strlen( $ellipsis ) ) {
3439 # String in fact does need truncation, the truncation point was OK.
3440 list( $ret, $openTags ) = $maybeState; // reload state
3441 $ret = $this->removeBadCharLast( $ret ); // multi-byte char fix
3442 $ret .= $ellipsis; // add ellipsis
3443 break;
3446 if ( $pos >= $textLen ) {
3447 break; // extra iteration just for above checks
3450 # Read the next char...
3451 $ch = $text[$pos];
3452 $lastCh = $pos ? $text[$pos - 1] : '';
3453 $ret .= $ch; // add to result string
3454 if ( $ch == '<' ) {
3455 $this->truncate_endBracket( $tag, $tagType, $lastCh, $openTags ); // for bad HTML
3456 $entityState = 0; // for bad HTML
3457 $bracketState = 1; // tag started (checking for backslash)
3458 } elseif ( $ch == '>' ) {
3459 $this->truncate_endBracket( $tag, $tagType, $lastCh, $openTags );
3460 $entityState = 0; // for bad HTML
3461 $bracketState = 0; // out of brackets
3462 } elseif ( $bracketState == 1 ) {
3463 if ( $ch == '/' ) {
3464 $tagType = 1; // close tag (e.g. "</span>")
3465 } else {
3466 $tagType = 0; // open tag (e.g. "<span>")
3467 $tag .= $ch;
3469 $bracketState = 2; // building tag name
3470 } elseif ( $bracketState == 2 ) {
3471 if ( $ch != ' ' ) {
3472 $tag .= $ch;
3473 } else {
3474 // Name found (e.g. "<a href=..."), add on tag attributes...
3475 $pos += $this->truncate_skip( $ret, $text, "<>", $pos + 1 );
3477 } elseif ( $bracketState == 0 ) {
3478 if ( $entityState ) {
3479 if ( $ch == ';' ) {
3480 $entityState = 0;
3481 $dispLen++; // entity is one displayed char
3483 } else {
3484 if ( $neLength == 0 && !$maybeState ) {
3485 // Save state without $ch. We want to *hit* the first
3486 // display char (to get tags) but not *use* it if truncating.
3487 $maybeState = array( substr( $ret, 0, -1 ), $openTags );
3489 if ( $ch == '&' ) {
3490 $entityState = 1; // entity found, (e.g. "&#160;")
3491 } else {
3492 $dispLen++; // this char is displayed
3493 // Add the next $max display text chars after this in one swoop...
3494 $max = ( $testingEllipsis ? $length : $neLength ) - $dispLen;
3495 $skipped = $this->truncate_skip( $ret, $text, "<>&", $pos + 1, $max );
3496 $dispLen += $skipped;
3497 $pos += $skipped;
3502 // Close the last tag if left unclosed by bad HTML
3503 $this->truncate_endBracket( $tag, $text[$textLen - 1], $tagType, $openTags );
3504 while ( count( $openTags ) > 0 ) {
3505 $ret .= '</' . array_pop( $openTags ) . '>'; // close open tags
3507 return $ret;
3511 * truncateHtml() helper function
3512 * like strcspn() but adds the skipped chars to $ret
3514 * @param $ret
3515 * @param $text
3516 * @param $search
3517 * @param $start
3518 * @param $len
3519 * @return int
3521 private function truncate_skip( &$ret, $text, $search, $start, $len = null ) {
3522 if ( $len === null ) {
3523 $len = -1; // -1 means "no limit" for strcspn
3524 } elseif ( $len < 0 ) {
3525 $len = 0; // sanity
3527 $skipCount = 0;
3528 if ( $start < strlen( $text ) ) {
3529 $skipCount = strcspn( $text, $search, $start, $len );
3530 $ret .= substr( $text, $start, $skipCount );
3532 return $skipCount;
3536 * truncateHtml() helper function
3537 * (a) push or pop $tag from $openTags as needed
3538 * (b) clear $tag value
3539 * @param &$tag string Current HTML tag name we are looking at
3540 * @param $tagType int (0-open tag, 1-close tag)
3541 * @param $lastCh string Character before the '>' that ended this tag
3542 * @param &$openTags array Open tag stack (not accounting for $tag)
3544 private function truncate_endBracket( &$tag, $tagType, $lastCh, &$openTags ) {
3545 $tag = ltrim( $tag );
3546 if ( $tag != '' ) {
3547 if ( $tagType == 0 && $lastCh != '/' ) {
3548 $openTags[] = $tag; // tag opened (didn't close itself)
3549 } elseif ( $tagType == 1 ) {
3550 if ( $openTags && $tag == $openTags[count( $openTags ) - 1] ) {
3551 array_pop( $openTags ); // tag closed
3554 $tag = '';
3559 * Grammatical transformations, needed for inflected languages
3560 * Invoked by putting {{grammar:case|word}} in a message
3562 * @param $word string
3563 * @param $case string
3564 * @return string
3566 function convertGrammar( $word, $case ) {
3567 global $wgGrammarForms;
3568 if ( isset( $wgGrammarForms[$this->getCode()][$case][$word] ) ) {
3569 return $wgGrammarForms[$this->getCode()][$case][$word];
3571 return $word;
3574 * Get the grammar forms for the content language
3575 * @return array of grammar forms
3576 * @since 1.20
3578 function getGrammarForms() {
3579 global $wgGrammarForms;
3580 if ( isset( $wgGrammarForms[$this->getCode()] ) && is_array( $wgGrammarForms[$this->getCode()] ) ) {
3581 return $wgGrammarForms[$this->getCode()];
3583 return array();
3586 * Provides an alternative text depending on specified gender.
3587 * Usage {{gender:username|masculine|feminine|neutral}}.
3588 * username is optional, in which case the gender of current user is used,
3589 * but only in (some) interface messages; otherwise default gender is used.
3591 * If no forms are given, an empty string is returned. If only one form is
3592 * given, it will be returned unconditionally. These details are implied by
3593 * the caller and cannot be overridden in subclasses.
3595 * If more than one form is given, the default is to use the neutral one
3596 * if it is specified, and to use the masculine one otherwise. These
3597 * details can be overridden in subclasses.
3599 * @param $gender string
3600 * @param $forms array
3602 * @return string
3604 function gender( $gender, $forms ) {
3605 if ( !count( $forms ) ) {
3606 return '';
3608 $forms = $this->preConvertPlural( $forms, 2 );
3609 if ( $gender === 'male' ) {
3610 return $forms[0];
3612 if ( $gender === 'female' ) {
3613 return $forms[1];
3615 return isset( $forms[2] ) ? $forms[2] : $forms[0];
3619 * Plural form transformations, needed for some languages.
3620 * For example, there are 3 form of plural in Russian and Polish,
3621 * depending on "count mod 10". See [[w:Plural]]
3622 * For English it is pretty simple.
3624 * Invoked by putting {{plural:count|wordform1|wordform2}}
3625 * or {{plural:count|wordform1|wordform2|wordform3}}
3627 * Example: {{plural:{{NUMBEROFARTICLES}}|article|articles}}
3629 * @param $count Integer: non-localized number
3630 * @param $forms Array: different plural forms
3631 * @return string Correct form of plural for $count in this language
3633 function convertPlural( $count, $forms ) {
3634 // Handle explicit n=pluralform cases
3635 $forms = $this->handleExplicitPluralForms( $count, $forms );
3636 if ( is_string( $forms ) ) {
3637 return $forms;
3639 if ( !count( $forms ) ) {
3640 return '';
3643 $pluralForm = $this->getPluralRuleIndexNumber( $count );
3644 $pluralForm = min( $pluralForm, count( $forms ) - 1 );
3645 return $forms[$pluralForm];
3649 * Handles explicit plural forms for Language::convertPlural()
3651 * In {{PLURAL:$1|0=nothing|one|many}}, 0=nothing will be returned if $1 equals zero.
3652 * If an explicitly defined plural form matches the $count, then
3653 * string value returned, otherwise array returned for further consideration
3654 * by CLDR rules or overridden convertPlural().
3656 * @since 1.23
3658 * @param int $count non-localized number
3659 * @param array $forms different plural forms
3661 * @return array|string
3663 protected function handleExplicitPluralForms( $count, array $forms ) {
3664 foreach ( $forms as $index => $form ) {
3665 if ( preg_match( '/\d+=/i', $form ) ) {
3666 $pos = strpos( $form, '=' );
3667 if ( substr( $form, 0, $pos ) === (string) $count ) {
3668 return substr( $form, $pos + 1 );
3670 unset( $forms[$index] );
3673 return array_values( $forms );
3677 * Checks that convertPlural was given an array and pads it to requested
3678 * amount of forms by copying the last one.
3680 * @param $count Integer: How many forms should there be at least
3681 * @param $forms Array of forms given to convertPlural
3682 * @return array Padded array of forms or an exception if not an array
3684 protected function preConvertPlural( /* Array */ $forms, $count ) {
3685 while ( count( $forms ) < $count ) {
3686 $forms[] = $forms[count( $forms ) - 1];
3688 return $forms;
3692 * @todo Maybe translate block durations. Note that this function is somewhat misnamed: it
3693 * deals with translating the *duration* ("1 week", "4 days", etc), not the expiry time
3694 * (which is an absolute timestamp). Please note: do NOT add this blindly, as it is used
3695 * on old expiry lengths recorded in log entries. You'd need to provide the start date to
3696 * match up with it.
3698 * @param $str String: the validated block duration in English
3699 * @return string Somehow translated block duration
3700 * @see LanguageFi.php for example implementation
3702 function translateBlockExpiry( $str ) {
3703 $duration = SpecialBlock::getSuggestedDurations( $this );
3704 foreach ( $duration as $show => $value ) {
3705 if ( strcmp( $str, $value ) == 0 ) {
3706 return htmlspecialchars( trim( $show ) );
3710 // Since usually only infinite or indefinite is only on list, so try
3711 // equivalents if still here.
3712 $indefs = array( 'infinite', 'infinity', 'indefinite' );
3713 if ( in_array( $str, $indefs ) ) {
3714 foreach ( $indefs as $val ) {
3715 $show = array_search( $val, $duration, true );
3716 if ( $show !== false ) {
3717 return htmlspecialchars( trim( $show ) );
3722 // If all else fails, return a standard duration or timestamp description.
3723 $time = strtotime( $str, 0 );
3724 if ( $time === false ) { // Unknown format. Return it as-is in case.
3725 return $str;
3726 } elseif ( $time !== strtotime( $str, 1 ) ) { // It's a relative timestamp.
3727 // $time is relative to 0 so it's a duration length.
3728 return $this->formatDuration( $time );
3729 } else { // It's an absolute timestamp.
3730 if ( $time === 0 ) {
3731 // wfTimestamp() handles 0 as current time instead of epoch.
3732 return $this->timeanddate( '19700101000000' );
3733 } else {
3734 return $this->timeanddate( $time );
3740 * languages like Chinese need to be segmented in order for the diff
3741 * to be of any use
3743 * @param $text String
3744 * @return String
3746 public function segmentForDiff( $text ) {
3747 return $text;
3751 * and unsegment to show the result
3753 * @param $text String
3754 * @return String
3756 public function unsegmentForDiff( $text ) {
3757 return $text;
3761 * Return the LanguageConverter used in the Language
3763 * @since 1.19
3764 * @return LanguageConverter
3766 public function getConverter() {
3767 return $this->mConverter;
3771 * convert text to all supported variants
3773 * @param $text string
3774 * @return array
3776 public function autoConvertToAllVariants( $text ) {
3777 return $this->mConverter->autoConvertToAllVariants( $text );
3781 * convert text to different variants of a language.
3783 * @param $text string
3784 * @return string
3786 public function convert( $text ) {
3787 return $this->mConverter->convert( $text );
3791 * Convert a Title object to a string in the preferred variant
3793 * @param $title Title
3794 * @return string
3796 public function convertTitle( $title ) {
3797 return $this->mConverter->convertTitle( $title );
3801 * Convert a namespace index to a string in the preferred variant
3803 * @param $ns int
3804 * @return string
3806 public function convertNamespace( $ns ) {
3807 return $this->mConverter->convertNamespace( $ns );
3811 * Check if this is a language with variants
3813 * @return bool
3815 public function hasVariants() {
3816 return count( $this->getVariants() ) > 1;
3820 * Check if the language has the specific variant
3822 * @since 1.19
3823 * @param $variant string
3824 * @return bool
3826 public function hasVariant( $variant ) {
3827 return (bool)$this->mConverter->validateVariant( $variant );
3831 * Put custom tags (e.g. -{ }-) around math to prevent conversion
3833 * @param $text string
3834 * @return string
3835 * @deprecated since 1.22 is no longer used
3837 public function armourMath( $text ) {
3838 return $this->mConverter->armourMath( $text );
3842 * Perform output conversion on a string, and encode for safe HTML output.
3843 * @param $text String text to be converted
3844 * @param $isTitle Bool whether this conversion is for the article title
3845 * @return string
3846 * @todo this should get integrated somewhere sane
3848 public function convertHtml( $text, $isTitle = false ) {
3849 return htmlspecialchars( $this->convert( $text, $isTitle ) );
3853 * @param $key string
3854 * @return string
3856 public function convertCategoryKey( $key ) {
3857 return $this->mConverter->convertCategoryKey( $key );
3861 * Get the list of variants supported by this language
3862 * see sample implementation in LanguageZh.php
3864 * @return array an array of language codes
3866 public function getVariants() {
3867 return $this->mConverter->getVariants();
3871 * @return string
3873 public function getPreferredVariant() {
3874 return $this->mConverter->getPreferredVariant();
3878 * @return string
3880 public function getDefaultVariant() {
3881 return $this->mConverter->getDefaultVariant();
3885 * @return string
3887 public function getURLVariant() {
3888 return $this->mConverter->getURLVariant();
3892 * If a language supports multiple variants, it is
3893 * possible that non-existing link in one variant
3894 * actually exists in another variant. this function
3895 * tries to find it. See e.g. LanguageZh.php
3897 * @param $link String: the name of the link
3898 * @param $nt Mixed: the title object of the link
3899 * @param $ignoreOtherCond Boolean: to disable other conditions when
3900 * we need to transclude a template or update a category's link
3901 * @return null the input parameters may be modified upon return
3903 public function findVariantLink( &$link, &$nt, $ignoreOtherCond = false ) {
3904 $this->mConverter->findVariantLink( $link, $nt, $ignoreOtherCond );
3908 * returns language specific options used by User::getPageRenderHash()
3909 * for example, the preferred language variant
3911 * @return string
3913 function getExtraHashOptions() {
3914 return $this->mConverter->getExtraHashOptions();
3918 * For languages that support multiple variants, the title of an
3919 * article may be displayed differently in different variants. this
3920 * function returns the apporiate title defined in the body of the article.
3922 * @return string
3924 public function getParsedTitle() {
3925 return $this->mConverter->getParsedTitle();
3929 * Prepare external link text for conversion. When the text is
3930 * a URL, it shouldn't be converted, and it'll be wrapped in
3931 * the "raw" tag (-{R| }-) to prevent conversion.
3933 * This function is called "markNoConversion" for historical
3934 * reasons.
3936 * @param $text String: text to be used for external link
3937 * @param $noParse bool: wrap it without confirming it's a real URL first
3938 * @return string the tagged text
3940 public function markNoConversion( $text, $noParse = false ) {
3941 // Excluding protocal-relative URLs may avoid many false positives.
3942 if ( $noParse || preg_match( '/^(?:' . wfUrlProtocolsWithoutProtRel() . ')/', $text ) ) {
3943 return $this->mConverter->markNoConversion( $text );
3944 } else {
3945 return $text;
3950 * A regular expression to match legal word-trailing characters
3951 * which should be merged onto a link of the form [[foo]]bar.
3953 * @return string
3955 public function linkTrail() {
3956 return self::$dataCache->getItem( $this->mCode, 'linkTrail' );
3960 * A regular expression character set to match legal word-prefixing
3961 * characters which should be merged onto a link of the form foo[[bar]].
3963 * @return string
3965 public function linkPrefixCharset() {
3966 return self::$dataCache->getItem( $this->mCode, 'linkPrefixCharset' );
3970 * @return Language
3972 function getLangObj() {
3973 return $this;
3977 * Get the "parent" language which has a converter to convert a "compatible" language
3978 * (in another variant) to this language (eg. zh for zh-cn, but not en for en-gb).
3980 * @return Language|null
3981 * @since 1.22
3983 public function getParentLanguage() {
3984 if ( $this->mParentLanguage !== false ) {
3985 return $this->mParentLanguage;
3988 $pieces = explode( '-', $this->getCode() );
3989 $code = $pieces[0];
3990 if ( !in_array( $code, LanguageConverter::$languagesWithVariants ) ) {
3991 $this->mParentLanguage = null;
3992 return null;
3994 $lang = Language::factory( $code );
3995 if ( !$lang->hasVariant( $this->getCode() ) ) {
3996 $this->mParentLanguage = null;
3997 return null;
4000 $this->mParentLanguage = $lang;
4001 return $lang;
4005 * Get the RFC 3066 code for this language object
4007 * NOTE: The return value of this function is NOT HTML-safe and must be escaped with
4008 * htmlspecialchars() or similar
4010 * @return string
4012 public function getCode() {
4013 return $this->mCode;
4017 * Get the code in Bcp47 format which we can use
4018 * inside of html lang="" tags.
4020 * NOTE: The return value of this function is NOT HTML-safe and must be escaped with
4021 * htmlspecialchars() or similar.
4023 * @since 1.19
4024 * @return string
4026 public function getHtmlCode() {
4027 if ( is_null( $this->mHtmlCode ) ) {
4028 $this->mHtmlCode = wfBCP47( $this->getCode() );
4030 return $this->mHtmlCode;
4034 * @param $code string
4036 public function setCode( $code ) {
4037 $this->mCode = $code;
4038 // Ensure we don't leave incorrect cached data lying around
4039 $this->mHtmlCode = null;
4040 $this->mParentLanguage = false;
4044 * Get the name of a file for a certain language code
4045 * @param $prefix string Prepend this to the filename
4046 * @param $code string Language code
4047 * @param $suffix string Append this to the filename
4048 * @throws MWException
4049 * @return string $prefix . $mangledCode . $suffix
4051 public static function getFileName( $prefix = 'Language', $code, $suffix = '.php' ) {
4052 // Protect against path traversal
4053 if ( !Language::isValidCode( $code )
4054 || strcspn( $code, ":/\\\000" ) !== strlen( $code )
4056 throw new MWException( "Invalid language code \"$code\"" );
4059 return $prefix . str_replace( '-', '_', ucfirst( $code ) ) . $suffix;
4063 * Get the language code from a file name. Inverse of getFileName()
4064 * @param $filename string $prefix . $languageCode . $suffix
4065 * @param $prefix string Prefix before the language code
4066 * @param $suffix string Suffix after the language code
4067 * @return string Language code, or false if $prefix or $suffix isn't found
4069 public static function getCodeFromFileName( $filename, $prefix = 'Language', $suffix = '.php' ) {
4070 $m = null;
4071 preg_match( '/' . preg_quote( $prefix, '/' ) . '([A-Z][a-z_]+)' .
4072 preg_quote( $suffix, '/' ) . '/', $filename, $m );
4073 if ( !count( $m ) ) {
4074 return false;
4076 return str_replace( '_', '-', strtolower( $m[1] ) );
4080 * @param $code string
4081 * @return string
4083 public static function getMessagesFileName( $code ) {
4084 global $IP;
4085 $file = self::getFileName( "$IP/languages/messages/Messages", $code, '.php' );
4086 wfRunHooks( 'Language::getMessagesFileName', array( $code, &$file ) );
4087 return $file;
4091 * @param $code string
4092 * @return string
4094 public static function getClassFileName( $code ) {
4095 global $IP;
4096 return self::getFileName( "$IP/languages/classes/Language", $code, '.php' );
4100 * Get the first fallback for a given language.
4102 * @param $code string
4104 * @return bool|string
4106 public static function getFallbackFor( $code ) {
4107 if ( $code === 'en' || !Language::isValidBuiltInCode( $code ) ) {
4108 return false;
4109 } else {
4110 $fallbacks = self::getFallbacksFor( $code );
4111 $first = array_shift( $fallbacks );
4112 return $first;
4117 * Get the ordered list of fallback languages.
4119 * @since 1.19
4120 * @param $code string Language code
4121 * @return array
4123 public static function getFallbacksFor( $code ) {
4124 if ( $code === 'en' || !Language::isValidBuiltInCode( $code ) ) {
4125 return array();
4126 } else {
4127 $v = self::getLocalisationCache()->getItem( $code, 'fallback' );
4128 $v = array_map( 'trim', explode( ',', $v ) );
4129 if ( $v[count( $v ) - 1] !== 'en' ) {
4130 $v[] = 'en';
4132 return $v;
4137 * Get the ordered list of fallback languages, ending with the fallback
4138 * language chain for the site language.
4140 * @since 1.22
4141 * @param string $code Language code
4142 * @return array array( fallbacks, site fallbacks )
4144 public static function getFallbacksIncludingSiteLanguage( $code ) {
4145 global $wgLanguageCode;
4147 // Usually, we will only store a tiny number of fallback chains, so we
4148 // keep them in static memory.
4149 $cacheKey = "{$code}-{$wgLanguageCode}";
4151 if ( !array_key_exists( $cacheKey, self::$fallbackLanguageCache ) ) {
4152 $fallbacks = self::getFallbacksFor( $code );
4154 // Append the site's fallback chain, including the site language itself
4155 $siteFallbacks = self::getFallbacksFor( $wgLanguageCode );
4156 array_unshift( $siteFallbacks, $wgLanguageCode );
4158 // Eliminate any languages already included in the chain
4159 $siteFallbacks = array_diff( $siteFallbacks, $fallbacks );
4161 self::$fallbackLanguageCache[$cacheKey] = array( $fallbacks, $siteFallbacks );
4163 return self::$fallbackLanguageCache[$cacheKey];
4167 * Get all messages for a given language
4168 * WARNING: this may take a long time. If you just need all message *keys*
4169 * but need the *contents* of only a few messages, consider using getMessageKeysFor().
4171 * @param $code string
4173 * @return array
4175 public static function getMessagesFor( $code ) {
4176 return self::getLocalisationCache()->getItem( $code, 'messages' );
4180 * Get a message for a given language
4182 * @param $key string
4183 * @param $code string
4185 * @return string
4187 public static function getMessageFor( $key, $code ) {
4188 return self::getLocalisationCache()->getSubitem( $code, 'messages', $key );
4192 * Get all message keys for a given language. This is a faster alternative to
4193 * array_keys( Language::getMessagesFor( $code ) )
4195 * @since 1.19
4196 * @param $code string Language code
4197 * @return array of message keys (strings)
4199 public static function getMessageKeysFor( $code ) {
4200 return self::getLocalisationCache()->getSubItemList( $code, 'messages' );
4204 * @param $talk
4205 * @return mixed
4207 function fixVariableInNamespace( $talk ) {
4208 if ( strpos( $talk, '$1' ) === false ) {
4209 return $talk;
4212 global $wgMetaNamespace;
4213 $talk = str_replace( '$1', $wgMetaNamespace, $talk );
4215 # Allow grammar transformations
4216 # Allowing full message-style parsing would make simple requests
4217 # such as action=raw much more expensive than they need to be.
4218 # This will hopefully cover most cases.
4219 $talk = preg_replace_callback( '/{{grammar:(.*?)\|(.*?)}}/i',
4220 array( &$this, 'replaceGrammarInNamespace' ), $talk );
4221 return str_replace( ' ', '_', $talk );
4225 * @param $m string
4226 * @return string
4228 function replaceGrammarInNamespace( $m ) {
4229 return $this->convertGrammar( trim( $m[2] ), trim( $m[1] ) );
4233 * @throws MWException
4234 * @return array
4236 static function getCaseMaps() {
4237 static $wikiUpperChars, $wikiLowerChars;
4238 if ( isset( $wikiUpperChars ) ) {
4239 return array( $wikiUpperChars, $wikiLowerChars );
4242 wfProfileIn( __METHOD__ );
4243 $arr = wfGetPrecompiledData( 'Utf8Case.ser' );
4244 if ( $arr === false ) {
4245 throw new MWException(
4246 "Utf8Case.ser is missing, please run \"make\" in the serialized directory\n" );
4248 $wikiUpperChars = $arr['wikiUpperChars'];
4249 $wikiLowerChars = $arr['wikiLowerChars'];
4250 wfProfileOut( __METHOD__ );
4251 return array( $wikiUpperChars, $wikiLowerChars );
4255 * Decode an expiry (block, protection, etc) which has come from the DB
4257 * @todo FIXME: why are we returnings DBMS-dependent strings???
4259 * @param $expiry String: Database expiry String
4260 * @param $format Bool|Int true to process using language functions, or TS_ constant
4261 * to return the expiry in a given timestamp
4262 * @return String
4263 * @since 1.18
4265 public function formatExpiry( $expiry, $format = true ) {
4266 static $infinity;
4267 if ( $infinity === null ) {
4268 $infinity = wfGetDB( DB_SLAVE )->getInfinity();
4271 if ( $expiry == '' || $expiry == $infinity ) {
4272 return $format === true
4273 ? $this->getMessageFromDB( 'infiniteblock' )
4274 : $infinity;
4275 } else {
4276 return $format === true
4277 ? $this->timeanddate( $expiry, /* User preference timezone */ true )
4278 : wfTimestamp( $format, $expiry );
4283 * @todo Document
4284 * @param $seconds int|float
4285 * @param $format Array Optional
4286 * If $format['avoid'] == 'avoidseconds' - don't mention seconds if $seconds >= 1 hour
4287 * If $format['avoid'] == 'avoidminutes' - don't mention seconds/minutes if $seconds > 48 hours
4288 * If $format['noabbrevs'] is true - use 'seconds' and friends instead of 'seconds-abbrev' and friends
4289 * For backwards compatibility, $format may also be one of the strings 'avoidseconds' or 'avoidminutes'
4290 * @return string
4292 function formatTimePeriod( $seconds, $format = array() ) {
4293 if ( !is_array( $format ) ) {
4294 $format = array( 'avoid' => $format ); // For backwards compatibility
4296 if ( !isset( $format['avoid'] ) ) {
4297 $format['avoid'] = false;
4299 if ( !isset( $format['noabbrevs' ] ) ) {
4300 $format['noabbrevs'] = false;
4302 $secondsMsg = wfMessage(
4303 $format['noabbrevs'] ? 'seconds' : 'seconds-abbrev' )->inLanguage( $this );
4304 $minutesMsg = wfMessage(
4305 $format['noabbrevs'] ? 'minutes' : 'minutes-abbrev' )->inLanguage( $this );
4306 $hoursMsg = wfMessage(
4307 $format['noabbrevs'] ? 'hours' : 'hours-abbrev' )->inLanguage( $this );
4308 $daysMsg = wfMessage(
4309 $format['noabbrevs'] ? 'days' : 'days-abbrev' )->inLanguage( $this );
4311 if ( round( $seconds * 10 ) < 100 ) {
4312 $s = $this->formatNum( sprintf( "%.1f", round( $seconds * 10 ) / 10 ) );
4313 $s = $secondsMsg->params( $s )->text();
4314 } elseif ( round( $seconds ) < 60 ) {
4315 $s = $this->formatNum( round( $seconds ) );
4316 $s = $secondsMsg->params( $s )->text();
4317 } elseif ( round( $seconds ) < 3600 ) {
4318 $minutes = floor( $seconds / 60 );
4319 $secondsPart = round( fmod( $seconds, 60 ) );
4320 if ( $secondsPart == 60 ) {
4321 $secondsPart = 0;
4322 $minutes++;
4324 $s = $minutesMsg->params( $this->formatNum( $minutes ) )->text();
4325 $s .= ' ';
4326 $s .= $secondsMsg->params( $this->formatNum( $secondsPart ) )->text();
4327 } elseif ( round( $seconds ) <= 2 * 86400 ) {
4328 $hours = floor( $seconds / 3600 );
4329 $minutes = floor( ( $seconds - $hours * 3600 ) / 60 );
4330 $secondsPart = round( $seconds - $hours * 3600 - $minutes * 60 );
4331 if ( $secondsPart == 60 ) {
4332 $secondsPart = 0;
4333 $minutes++;
4335 if ( $minutes == 60 ) {
4336 $minutes = 0;
4337 $hours++;
4339 $s = $hoursMsg->params( $this->formatNum( $hours ) )->text();
4340 $s .= ' ';
4341 $s .= $minutesMsg->params( $this->formatNum( $minutes ) )->text();
4342 if ( !in_array( $format['avoid'], array( 'avoidseconds', 'avoidminutes' ) ) ) {
4343 $s .= ' ' . $secondsMsg->params( $this->formatNum( $secondsPart ) )->text();
4345 } else {
4346 $days = floor( $seconds / 86400 );
4347 if ( $format['avoid'] === 'avoidminutes' ) {
4348 $hours = round( ( $seconds - $days * 86400 ) / 3600 );
4349 if ( $hours == 24 ) {
4350 $hours = 0;
4351 $days++;
4353 $s = $daysMsg->params( $this->formatNum( $days ) )->text();
4354 $s .= ' ';
4355 $s .= $hoursMsg->params( $this->formatNum( $hours ) )->text();
4356 } elseif ( $format['avoid'] === 'avoidseconds' ) {
4357 $hours = floor( ( $seconds - $days * 86400 ) / 3600 );
4358 $minutes = round( ( $seconds - $days * 86400 - $hours * 3600 ) / 60 );
4359 if ( $minutes == 60 ) {
4360 $minutes = 0;
4361 $hours++;
4363 if ( $hours == 24 ) {
4364 $hours = 0;
4365 $days++;
4367 $s = $daysMsg->params( $this->formatNum( $days ) )->text();
4368 $s .= ' ';
4369 $s .= $hoursMsg->params( $this->formatNum( $hours ) )->text();
4370 $s .= ' ';
4371 $s .= $minutesMsg->params( $this->formatNum( $minutes ) )->text();
4372 } else {
4373 $s = $daysMsg->params( $this->formatNum( $days ) )->text();
4374 $s .= ' ';
4375 $s .= $this->formatTimePeriod( $seconds - $days * 86400, $format );
4378 return $s;
4382 * Format a bitrate for output, using an appropriate
4383 * unit (bps, kbps, Mbps, Gbps, Tbps, Pbps, Ebps, Zbps or Ybps) according to the magnitude in question
4385 * This use base 1000. For base 1024 use formatSize(), for another base
4386 * see formatComputingNumbers()
4388 * @param $bps int
4389 * @return string
4391 function formatBitrate( $bps ) {
4392 return $this->formatComputingNumbers( $bps, 1000, "bitrate-$1bits" );
4396 * @param $size int Size of the unit
4397 * @param $boundary int Size boundary (1000, or 1024 in most cases)
4398 * @param $messageKey string Message key to be uesd
4399 * @return string
4401 function formatComputingNumbers( $size, $boundary, $messageKey ) {
4402 if ( $size <= 0 ) {
4403 return str_replace( '$1', $this->formatNum( $size ),
4404 $this->getMessageFromDB( str_replace( '$1', '', $messageKey ) )
4407 $sizes = array( '', 'kilo', 'mega', 'giga', 'tera', 'peta', 'exa', 'zeta', 'yotta' );
4408 $index = 0;
4410 $maxIndex = count( $sizes ) - 1;
4411 while ( $size >= $boundary && $index < $maxIndex ) {
4412 $index++;
4413 $size /= $boundary;
4416 // For small sizes no decimal places necessary
4417 $round = 0;
4418 if ( $index > 1 ) {
4419 // For MB and bigger two decimal places are smarter
4420 $round = 2;
4422 $msg = str_replace( '$1', $sizes[$index], $messageKey );
4424 $size = round( $size, $round );
4425 $text = $this->getMessageFromDB( $msg );
4426 return str_replace( '$1', $this->formatNum( $size ), $text );
4430 * Format a size in bytes for output, using an appropriate
4431 * unit (B, KB, MB, GB, TB, PB, EB, ZB or YB) according to the magnitude in question
4433 * This method use base 1024. For base 1000 use formatBitrate(), for
4434 * another base see formatComputingNumbers()
4436 * @param $size int Size to format
4437 * @return string Plain text (not HTML)
4439 function formatSize( $size ) {
4440 return $this->formatComputingNumbers( $size, 1024, "size-$1bytes" );
4444 * Make a list item, used by various special pages
4446 * @param $page String Page link
4447 * @param $details String Text between brackets
4448 * @param $oppositedm Boolean Add the direction mark opposite to your
4449 * language, to display text properly
4450 * @return String
4452 function specialList( $page, $details, $oppositedm = true ) {
4453 $dirmark = ( $oppositedm ? $this->getDirMark( true ) : '' ) .
4454 $this->getDirMark();
4455 $details = $details ? $dirmark . $this->getMessageFromDB( 'word-separator' ) .
4456 wfMessage( 'parentheses' )->rawParams( $details )->inLanguage( $this )->escaped() : '';
4457 return $page . $details;
4461 * Generate (prev x| next x) (20|50|100...) type links for paging
4463 * @param $title Title object to link
4464 * @param $offset Integer offset parameter
4465 * @param $limit Integer limit parameter
4466 * @param $query array|String optional URL query parameter string
4467 * @param $atend Bool optional param for specified if this is the last page
4468 * @return String
4470 public function viewPrevNext( Title $title, $offset, $limit, array $query = array(), $atend = false ) {
4471 // @todo FIXME: Why on earth this needs one message for the text and another one for tooltip?
4473 # Make 'previous' link
4474 $prev = wfMessage( 'prevn' )->inLanguage( $this )->title( $title )->numParams( $limit )->text();
4475 if ( $offset > 0 ) {
4476 $plink = $this->numLink( $title, max( $offset - $limit, 0 ), $limit,
4477 $query, $prev, 'prevn-title', 'mw-prevlink' );
4478 } else {
4479 $plink = htmlspecialchars( $prev );
4482 # Make 'next' link
4483 $next = wfMessage( 'nextn' )->inLanguage( $this )->title( $title )->numParams( $limit )->text();
4484 if ( $atend ) {
4485 $nlink = htmlspecialchars( $next );
4486 } else {
4487 $nlink = $this->numLink( $title, $offset + $limit, $limit,
4488 $query, $next, 'nextn-title', 'mw-nextlink' );
4491 # Make links to set number of items per page
4492 $numLinks = array();
4493 foreach ( array( 20, 50, 100, 250, 500 ) as $num ) {
4494 $numLinks[] = $this->numLink( $title, $offset, $num,
4495 $query, $this->formatNum( $num ), 'shown-title', 'mw-numlink' );
4498 return wfMessage( 'viewprevnext' )->inLanguage( $this )->title( $title
4499 )->rawParams( $plink, $nlink, $this->pipeList( $numLinks ) )->escaped();
4503 * Helper function for viewPrevNext() that generates links
4505 * @param $title Title object to link
4506 * @param $offset Integer offset parameter
4507 * @param $limit Integer limit parameter
4508 * @param $query Array extra query parameters
4509 * @param $link String text to use for the link; will be escaped
4510 * @param $tooltipMsg String name of the message to use as tooltip
4511 * @param $class String value of the "class" attribute of the link
4512 * @return String HTML fragment
4514 private function numLink( Title $title, $offset, $limit, array $query, $link, $tooltipMsg, $class ) {
4515 $query = array( 'limit' => $limit, 'offset' => $offset ) + $query;
4516 $tooltip = wfMessage( $tooltipMsg )->inLanguage( $this )->title( $title )->numParams( $limit )->text();
4517 return Html::element( 'a', array( 'href' => $title->getLocalURL( $query ),
4518 'title' => $tooltip, 'class' => $class ), $link );
4522 * Get the conversion rule title, if any.
4524 * @return string
4526 public function getConvRuleTitle() {
4527 return $this->mConverter->getConvRuleTitle();
4531 * Get the compiled plural rules for the language
4532 * @since 1.20
4533 * @return array Associative array with plural form, and plural rule as key-value pairs
4535 public function getCompiledPluralRules() {
4536 $pluralRules = self::$dataCache->getItem( strtolower( $this->mCode ), 'compiledPluralRules' );
4537 $fallbacks = Language::getFallbacksFor( $this->mCode );
4538 if ( !$pluralRules ) {
4539 foreach ( $fallbacks as $fallbackCode ) {
4540 $pluralRules = self::$dataCache->getItem( strtolower( $fallbackCode ), 'compiledPluralRules' );
4541 if ( $pluralRules ) {
4542 break;
4546 return $pluralRules;
4550 * Get the plural rules for the language
4551 * @since 1.20
4552 * @return array Associative array with plural form number and plural rule as key-value pairs
4554 public function getPluralRules() {
4555 $pluralRules = self::$dataCache->getItem( strtolower( $this->mCode ), 'pluralRules' );
4556 $fallbacks = Language::getFallbacksFor( $this->mCode );
4557 if ( !$pluralRules ) {
4558 foreach ( $fallbacks as $fallbackCode ) {
4559 $pluralRules = self::$dataCache->getItem( strtolower( $fallbackCode ), 'pluralRules' );
4560 if ( $pluralRules ) {
4561 break;
4565 return $pluralRules;
4569 * Get the plural rule types for the language
4570 * @since 1.22
4571 * @return array Associative array with plural form number and plural rule type as key-value pairs
4573 public function getPluralRuleTypes() {
4574 $pluralRuleTypes = self::$dataCache->getItem( strtolower( $this->mCode ), 'pluralRuleTypes' );
4575 $fallbacks = Language::getFallbacksFor( $this->mCode );
4576 if ( !$pluralRuleTypes ) {
4577 foreach ( $fallbacks as $fallbackCode ) {
4578 $pluralRuleTypes = self::$dataCache->getItem( strtolower( $fallbackCode ), 'pluralRuleTypes' );
4579 if ( $pluralRuleTypes ) {
4580 break;
4584 return $pluralRuleTypes;
4588 * Find the index number of the plural rule appropriate for the given number
4589 * @return int The index number of the plural rule
4591 public function getPluralRuleIndexNumber( $number ) {
4592 $pluralRules = $this->getCompiledPluralRules();
4593 $form = CLDRPluralRuleEvaluator::evaluateCompiled( $number, $pluralRules );
4594 return $form;
4598 * Find the plural rule type appropriate for the given number
4599 * For example, if the language is set to Arabic, getPluralType(5) should
4600 * return 'few'.
4601 * @since 1.22
4602 * @return string The name of the plural rule type, e.g. one, two, few, many
4604 public function getPluralRuleType( $number ) {
4605 $index = $this->getPluralRuleIndexNumber( $number );
4606 $pluralRuleTypes = $this->getPluralRuleTypes();
4607 if ( isset( $pluralRuleTypes[$index] ) ) {
4608 return $pluralRuleTypes[$index];
4609 } else {
4610 return 'other';