languages/Language.php

   1 <?php
   2 /**
   3  * @defgroup Language Language
   4  *
   5  * @file
   6  * @ingroup Language
   7  */
   8
   9 if( !defined( 'MEDIAWIKI' ) ) {
  10         echo "This file is part of MediaWiki, it is not a valid entry point.\n";
  11         exit( 1 );
  12 }
  13
  14 # Read language names
  15 global $wgLanguageNames;
  16 require_once( dirname(__FILE__) . '/Names.php' ) ;
  17
  18 global $wgInputEncoding, $wgOutputEncoding;
  19
  20 /**
  21  * These are always UTF-8, they exist only for backwards compatibility
  22  */
  23 $wgInputEncoding    = "UTF-8";
  24 $wgOutputEncoding       = "UTF-8";
  25
  26 if( function_exists( 'mb_strtoupper' ) ) {
  27         mb_internal_encoding('UTF-8');
  28 }
  29
  30 /**
  31  * a fake language converter
  32  *
  33  * @ingroup Language
  34  */
  35 class FakeConverter {
  36         var $mLang;
  37         function FakeConverter($langobj) {$this->mLang = $langobj;}
  38         function convert($t, $i) {return $t;}
  39         function parserConvert($t, $p) {return $t;}
  40         function getVariants() { return array( $this->mLang->getCode() ); }
  41         function getPreferredVariant() {return $this->mLang->getCode(); }
  42         function findVariantLink(&$l, &$n) {}
  43         function getExtraHashOptions() {return '';}
  44         function getParsedTitle() {return '';}
  45         function markNoConversion($text, $noParse=false) {return $text;}
  46         function convertCategoryKey( $key ) {return $key; }
  47         function convertLinkToAllVariants($text){ return array( $this->mLang->getCode() => $text); }
  48         function armourMath($text){ return $text; }
  49 }
  50
  51 /**
  52  * Internationalisation code
  53  * @ingroup Language
  54  */
  55 class Language {
  56         var $mConverter, $mVariants, $mCode, $mLoaded = false;
  57         var $mMagicExtensions = array(), $mMagicHookDone = false;
  58
  59         static public $mLocalisationKeys = array( 'fallback', 'namespaceNames',
  60                 'skinNames', 'mathNames',
  61                 'bookstoreList', 'magicWords', 'messages', 'rtl', 'digitTransformTable',
  62                 'separatorTransformTable', 'fallback8bitEncoding', 'linkPrefixExtension',
  63                 'defaultUserOptionOverrides', 'linkTrail', 'namespaceAliases',
  64                 'dateFormats', 'datePreferences', 'datePreferenceMigrationMap',
  65                 'defaultDateFormat', 'extraUserToggles', 'specialPageAliases',
  66                 'imageFiles'
  67         );
  68
  69         static public $mMergeableMapKeys = array( 'messages', 'namespaceNames', 'mathNames',
  70                 'dateFormats', 'defaultUserOptionOverrides', 'magicWords', 'imageFiles' );
  71
  72         static public $mMergeableListKeys = array( 'extraUserToggles' );
  73
  74         static public $mMergeableAliasListKeys = array( 'specialPageAliases' );
  75
  76         static public $mLocalisationCache = array();
  77
  78         static public $mWeekdayMsgs = array(
  79                 'sunday', 'monday', 'tuesday', 'wednesday', 'thursday',
  80                 'friday', 'saturday'
  81         );
  82
  83         static public $mWeekdayAbbrevMsgs = array(
  84                 'sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat'
  85         );
  86
  87         static public $mMonthMsgs = array(
  88                 'january', 'february', 'march', 'april', 'may_long', 'june',
  89                 'july', 'august', 'september', 'october', 'november',
  90                 'december'
  91         );
  92         static public $mMonthGenMsgs = array(
  93                 'january-gen', 'february-gen', 'march-gen', 'april-gen', 'may-gen', 'june-gen',
  94                 'july-gen', 'august-gen', 'september-gen', 'october-gen', 'november-gen',
  95                 'december-gen'
  96         );
  97         static public $mMonthAbbrevMsgs = array(
  98                 'jan', 'feb', 'mar', 'apr', 'may', 'jun', 'jul', 'aug',
  99                 'sep', 'oct', 'nov', 'dec'
 100         );
 101
 102         static public $mIranianCalendarMonthMsgs = array(
 103                 'iranian-calendar-m1', 'iranian-calendar-m2', 'iranian-calendar-m3',
 104                 'iranian-calendar-m4', 'iranian-calendar-m5', 'iranian-calendar-m6',
 105                 'iranian-calendar-m7', 'iranian-calendar-m8', 'iranian-calendar-m9',
 106                 'iranian-calendar-m10', 'iranian-calendar-m11', 'iranian-calendar-m12'
 107         );
 108
 109         static public $mHebrewCalendarMonthMsgs = array(
 110                 'hebrew-calendar-m1', 'hebrew-calendar-m2', 'hebrew-calendar-m3',
 111                 'hebrew-calendar-m4', 'hebrew-calendar-m5', 'hebrew-calendar-m6',
 112                 'hebrew-calendar-m7', 'hebrew-calendar-m8', 'hebrew-calendar-m9',
 113                 'hebrew-calendar-m10', 'hebrew-calendar-m11', 'hebrew-calendar-m12',
 114                 'hebrew-calendar-m6a', 'hebrew-calendar-m6b'
 115         );
 116
 117         static public $mHebrewCalendarMonthGenMsgs = array(
 118                 'hebrew-calendar-m1-gen', 'hebrew-calendar-m2-gen', 'hebrew-calendar-m3-gen',
 119                 'hebrew-calendar-m4-gen', 'hebrew-calendar-m5-gen', 'hebrew-calendar-m6-gen',
 120                 'hebrew-calendar-m7-gen', 'hebrew-calendar-m8-gen', 'hebrew-calendar-m9-gen',
 121                 'hebrew-calendar-m10-gen', 'hebrew-calendar-m11-gen', 'hebrew-calendar-m12-gen',
 122                 'hebrew-calendar-m6a-gen', 'hebrew-calendar-m6b-gen'
 123         );
 124
 125         static public $mHijriCalendarMonthMsgs = array(
 126                 'hijri-calendar-m1', 'hijri-calendar-m2', 'hijri-calendar-m3',
 127                 'hijri-calendar-m4', 'hijri-calendar-m5', 'hijri-calendar-m6',
 128                 'hijri-calendar-m7', 'hijri-calendar-m8', 'hijri-calendar-m9',
 129                 'hijri-calendar-m10', 'hijri-calendar-m11', 'hijri-calendar-m12'
 130         );
 131
 132         /**
 133          * Create a language object for a given language code
 134          */
 135         static function factory( $code ) {
 136                 global $IP;
 137                 static $recursionLevel = 0;
 138
 139                 if ( $code == 'en' ) {
 140                         $class = 'Language';
 141                 } else {
 142                         $class = 'Language' . str_replace( '-', '_', ucfirst( $code ) );
 143                         // Preload base classes to work around APC/PHP5 bug
 144                         if ( file_exists( "$IP/languages/classes/$class.deps.php" ) ) {
 145                                 include_once("$IP/languages/classes/$class.deps.php");
 146                         }
 147                         if ( file_exists( "$IP/languages/classes/$class.php" ) ) {
 148                                 include_once("$IP/languages/classes/$class.php");
 149                         }
 150                 }
 151
 152                 if ( $recursionLevel > 5 ) {
 153                         throw new MWException( "Language fallback loop detected when creating class $class\n" );
 154                 }
 155
 156                 if( ! class_exists( $class ) ) {
 157                         $fallback = Language::getFallbackFor( $code );
 158                         ++$recursionLevel;
 159                         $lang = Language::factory( $fallback );
 160                         --$recursionLevel;
 161                         $lang->setCode( $code );
 162                 } else {
 163                         $lang = new $class;
 164                 }
 165
 166                 return $lang;
 167         }
 168
 169         function __construct() {
 170                 $this->mConverter = new FakeConverter($this);
 171                 // Set the code to the name of the descendant
 172                 if ( get_class( $this ) == 'Language' ) {
 173                         $this->mCode = 'en';
 174                 } else {
 175                         $this->mCode = str_replace( '_', '-', strtolower( substr( get_class( $this ), 8 ) ) );
 176                 }
 177         }
 178
 179         /**
 180          * Hook which will be called if this is the content language.
 181          * Descendants can use this to register hook functions or modify globals
 182          */
 183         function initContLang() {}
 184
 185         /**
 186          * @deprecated Use User::getDefaultOptions()
 187          * @return array
 188          */
 189         function getDefaultUserOptions() {
 190                 wfDeprecated( __METHOD__ );
 191                 return User::getDefaultOptions();
 192         }
 193
 194         function getFallbackLanguageCode() {
 195                 return self::getFallbackFor( $this->mCode );
 196         }
 197
 198         /**
 199          * Exports $wgBookstoreListEn
 200          * @return array
 201          */
 202         function getBookstoreList() {
 203                 $this->load();
 204                 return $this->bookstoreList;
 205         }
 206
 207         /**
 208          * @return array
 209          */
 210         function getNamespaces() {
 211                 $this->load();
 212                 return $this->namespaceNames;
 213         }
 214
 215         /**
 216          * A convenience function that returns the same thing as
 217          * getNamespaces() except with the array values changed to ' '
 218          * where it found '_', useful for producing output to be displayed
 219          * e.g. in <select> forms.
 220          *
 221          * @return array
 222          */
 223         function getFormattedNamespaces() {
 224                 $ns = $this->getNamespaces();
 225                 foreach($ns as $k => $v) {
 226                         $ns[$k] = strtr($v, '_', ' ');
 227                 }
 228                 return $ns;
 229         }
 230
 231         /**
 232          * Get a namespace value by key
 233          * <code>
 234          * $mw_ns = $wgContLang->getNsText( NS_MEDIAWIKI );
 235          * echo $mw_ns; // prints 'MediaWiki'
 236          * </code>
 237          *
 238          * @param $index Int: the array key of the namespace to return
 239          * @return mixed, string if the namespace value exists, otherwise false
 240          */
 241         function getNsText( $index ) {
 242                 $ns = $this->getNamespaces();
 243                 return isset( $ns[$index] ) ? $ns[$index] : false;
 244         }
 245
 246         /**
 247          * A convenience function that returns the same thing as
 248          * getNsText() except with '_' changed to ' ', useful for
 249          * producing output.
 250          *
 251          * @return array
 252          */
 253         function getFormattedNsText( $index ) {
 254                 $ns = $this->getNsText( $index );
 255                 return strtr($ns, '_', ' ');
 256         }
 257
 258         /**
 259          * Get a namespace key by value, case insensitive.
 260          * Only matches namespace names for the current language, not the
 261          * canonical ones defined in Namespace.php.
 262          *
 263          * @param $text String
 264          * @return mixed An integer if $text is a valid value otherwise false
 265          */
 266         function getLocalNsIndex( $text ) {
 267                 $this->load();
 268                 $lctext = $this->lc($text);
 269                 return isset( $this->mNamespaceIds[$lctext] ) ? $this->mNamespaceIds[$lctext] : false;
 270         }
 271
 272         /**
 273          * Get a namespace key by value, case insensitive.  Canonical namespace
 274          * names override custom ones defined for the current language.
 275          *
 276          * @param $text String
 277          * @return mixed An integer if $text is a valid value otherwise false
 278          */
 279         function getNsIndex( $text ) {
 280                 $this->load();
 281                 $lctext = $this->lc($text);
 282                 if( ( $ns = MWNamespace::getCanonicalIndex( $lctext ) ) !== null ) return $ns;
 283                 return isset( $this->mNamespaceIds[$lctext] ) ? $this->mNamespaceIds[$lctext] : false;
 284         }
 285
 286         /**
 287          * short names for language variants used for language conversion links.
 288          *
 289          * @param $code String
 290          * @return string
 291          */
 292         function getVariantname( $code ) {
 293                 return $this->getMessageFromDB( "variantname-$code" );
 294         }
 295
 296         function specialPage( $name ) {
 297                 $aliases = $this->getSpecialPageAliases();
 298                 if ( isset( $aliases[$name][0] ) ) {
 299                         $name = $aliases[$name][0];
 300                 }
 301                 return $this->getNsText(NS_SPECIAL) . ':' . $name;
 302         }
 303
 304         function getQuickbarSettings() {
 305                 return array(
 306                         $this->getMessage( 'qbsettings-none' ),
 307                         $this->getMessage( 'qbsettings-fixedleft' ),
 308                         $this->getMessage( 'qbsettings-fixedright' ),
 309                         $this->getMessage( 'qbsettings-floatingleft' ),
 310                         $this->getMessage( 'qbsettings-floatingright' )
 311                 );
 312         }
 313
 314         function getSkinNames() {
 315                 $this->load();
 316                 return $this->skinNames;
 317         }
 318
 319         function getMathNames() {
 320                 $this->load();
 321                 return $this->mathNames;
 322         }
 323
 324         function getDatePreferences() {
 325                 $this->load();
 326                 return $this->datePreferences;
 327         }
 328
 329         function getDateFormats() {
 330                 $this->load();
 331                 return $this->dateFormats;
 332         }
 333
 334         function getDefaultDateFormat() {
 335                 $this->load();
 336                 return $this->defaultDateFormat;
 337         }
 338
 339         function getDatePreferenceMigrationMap() {
 340                 $this->load();
 341                 return $this->datePreferenceMigrationMap;
 342         }
 343
 344         function getImageFile( $image ) {
 345                 $this->load();
 346                 return $this->imageFiles[$image];
 347         }
 348
 349         function getDefaultUserOptionOverrides() {
 350                 $this->load();
 351                 # XXX - apparently some languageas get empty arrays, didn't get to it yet -- midom
 352                 if (is_array($this->defaultUserOptionOverrides)) {
 353                         return $this->defaultUserOptionOverrides;
 354                 } else {
 355                         return array();
 356                 }
 357         }
 358
 359         function getExtraUserToggles() {
 360                 $this->load();
 361                 return $this->extraUserToggles;
 362         }
 363
 364         function getUserToggle( $tog ) {
 365                 return $this->getMessageFromDB( "tog-$tog" );
 366         }
 367
 368         /**
 369          * Get language names, indexed by code.
 370          * If $customisedOnly is true, only returns codes with a messages file
 371          */
 372         public static function getLanguageNames( $customisedOnly = false ) {
 373                 global $wgLanguageNames, $wgExtraLanguageNames;
 374                 $allNames = $wgExtraLanguageNames + $wgLanguageNames;
 375                 if ( !$customisedOnly ) {
 376                         return $allNames;
 377                 }
 378
 379                 global $IP;
 380                 $names = array();
 381                 $dir = opendir( "$IP/languages/messages" );
 382                 while( false !== ( $file = readdir( $dir ) ) ) {
 383                         $m = array();
 384                         if( preg_match( '/Messages([A-Z][a-z_]+)\.php$/', $file, $m ) ) {
 385                                 $code = str_replace( '_', '-', strtolower( $m[1] ) );
 386                                 if ( isset( $allNames[$code] ) ) {
 387                                         $names[$code] = $allNames[$code];
 388                                 }
 389                         }
 390                 }
 391                 closedir( $dir );
 392                 return $names;
 393         }
 394
 395         /**
 396          * Ugly hack to get a message maybe from the MediaWiki namespace, if this
 397          * language object is the content or user language.
 398          */
 399         function getMessageFromDB( $msg ) {
 400                 global $wgContLang, $wgLang;
 401                 if ( $wgContLang->getCode() == $this->getCode() ) {
 402                         # Content language
 403                         return wfMsgForContent( $msg );
 404                 } elseif ( $wgLang->getCode() == $this->getCode() ) {
 405                         # User language
 406                         return wfMsg( $msg );
 407                 } else {
 408                         # Neither, get from localisation
 409                         return $this->getMessage( $msg );
 410                 }
 411         }
 412
 413         function getLanguageName( $code ) {
 414                 $names = self::getLanguageNames();
 415                 if ( !array_key_exists( $code, $names ) ) {
 416                         return '';
 417                 }
 418                 return $names[$code];
 419         }
 420
 421         function getMonthName( $key ) {
 422                 return $this->getMessageFromDB( self::$mMonthMsgs[$key-1] );
 423         }
 424
 425         function getMonthNameGen( $key ) {
 426                 return $this->getMessageFromDB( self::$mMonthGenMsgs[$key-1] );
 427         }
 428
 429         function getMonthAbbreviation( $key ) {
 430                 return $this->getMessageFromDB( self::$mMonthAbbrevMsgs[$key-1] );
 431         }
 432
 433         function getWeekdayName( $key ) {
 434                 return $this->getMessageFromDB( self::$mWeekdayMsgs[$key-1] );
 435         }
 436
 437         function getWeekdayAbbreviation( $key ) {
 438                 return $this->getMessageFromDB( self::$mWeekdayAbbrevMsgs[$key-1] );
 439         }
 440
 441         function getIranianCalendarMonthName( $key ) {
 442                 return $this->getMessageFromDB( self::$mIranianCalendarMonthMsgs[$key-1] );
 443         }
 444
 445         function getHebrewCalendarMonthName( $key ) {
 446                 return $this->getMessageFromDB( self::$mHebrewCalendarMonthMsgs[$key-1] );
 447         }
 448
 449         function getHebrewCalendarMonthNameGen( $key ) {
 450                 return $this->getMessageFromDB( self::$mHebrewCalendarMonthGenMsgs[$key-1] );
 451         }
 452
 453         function getHijriCalendarMonthName( $key ) {
 454                 return $this->getMessageFromDB( self::$mHijriCalendarMonthMsgs[$key-1] );
 455         }
 456
 457         /**
 458          * Used by date() and time() to adjust the time output.
 459          *
 460          * @param $ts Int the time in date('YmdHis') format
 461          * @param $tz Mixed: adjust the time by this amount (default false, mean we
 462          *            get user timecorrection setting)
 463          * @return int
 464          */
 465         function userAdjust( $ts, $tz = false ) {
 466                 global $wgUser, $wgLocalTZoffset;
 467
 468                 if (!$tz) {
 469                         $tz = $wgUser->getOption( 'timecorrection' );
 470                 }
 471
 472                 # minutes and hours differences:
 473                 $minDiff = 0;
 474                 $hrDiff  = 0;
 475
 476                 if ( $tz === '' ) {
 477                         # Global offset in minutes.
 478                         if( isset($wgLocalTZoffset) ) {
 479                                 if( $wgLocalTZoffset >= 0 ) {
 480                                         $hrDiff = floor($wgLocalTZoffset / 60);
 481                                 } else {
 482                                         $hrDiff = ceil($wgLocalTZoffset / 60);
 483                                 }
 484                                 $minDiff = $wgLocalTZoffset % 60;
 485                         }
 486                 } elseif ( strpos( $tz, ':' ) !== false ) {
 487                         $tzArray = explode( ':', $tz );
 488                         $hrDiff = intval($tzArray[0]);
 489                         $minDiff = intval($hrDiff < 0 ? -$tzArray[1] : $tzArray[1]);
 490                 } else {
 491                         $hrDiff = intval( $tz );
 492                 }
 493
 494                 # No difference ? Return time unchanged
 495                 if ( 0 == $hrDiff && 0 == $minDiff ) { return $ts; }
 496
 497                 wfSuppressWarnings(); // E_STRICT system time bitching
 498                 # Generate an adjusted date
 499                 $t = mktime( (
 500                   (int)substr( $ts, 8, 2) ) + $hrDiff, # Hours
 501                   (int)substr( $ts, 10, 2 ) + $minDiff, # Minutes
 502                   (int)substr( $ts, 12, 2 ), # Seconds
 503                   (int)substr( $ts, 4, 2 ), # Month
 504                   (int)substr( $ts, 6, 2 ), # Day
 505                   (int)substr( $ts, 0, 4 ) ); #Year
 506
 507                 $date = date( 'YmdHis', $t );
 508                 wfRestoreWarnings();
 509
 510                 return $date;
 511         }
 512
 513         /**
 514          * This is a workalike of PHP's date() function, but with better
 515          * internationalisation, a reduced set of format characters, and a better
 516          * escaping format.
 517          *
 518          * Supported format characters are dDjlNwzWFmMntLYyaAgGhHiscrU. See the
 519          * PHP manual for definitions. There are a number of extensions, which
 520          * start with "x":
 521          *
 522          *    xn   Do not translate digits of the next numeric format character
 523          *    xN   Toggle raw digit (xn) flag, stays set until explicitly unset
 524          *    xr   Use roman numerals for the next numeric format character
 525          *    xh   Use hebrew numerals for the next numeric format character
 526          *    xx   Literal x
 527          *    xg   Genitive month name
 528          *
 529          *    xij  j (day number) in Iranian calendar
 530          *    xiF  F (month name) in Iranian calendar
 531          *    xin  n (month number) in Iranian calendar
 532          *    xiY  Y (full year) in Iranian calendar
 533          *
 534          *    xjj  j (day number) in Hebrew calendar
 535          *    xjF  F (month name) in Hebrew calendar
 536          *    xjt  t (days in month) in Hebrew calendar
 537          *    xjx  xg (genitive month name) in Hebrew calendar
 538          *    xjn  n (month number) in Hebrew calendar
 539          *    xjY  Y (full year) in Hebrew calendar
 540          *
 541          *   xmj  j (day number) in Hijri calendar
 542          *   xmF  F (month name) in Hijri calendar
 543          *   xmn  n (month number) in Hijri calendar
 544          *   xmY  Y (full year) in Hijri calendar
 545          *
 546          *    xkY  Y (full year) in Thai solar calendar. Months and days are
 547          *                       identical to the Gregorian calendar
 548          *
 549          * Characters enclosed in double quotes will be considered literal (with
 550          * the quotes themselves removed). Unmatched quotes will be considered
 551          * literal quotes. Example:
 552          *
 553          * "The month is" F       => The month is January
 554          * i's"                   => 20'11"
 555          *
 556          * Backslash escaping is also supported.
 557          *
 558          * Input timestamp is assumed to be pre-normalized to the desired local
 559          * time zone, if any.
 560          *
 561          * @param $format String
 562          * @param $ts String: 14-character timestamp
 563          *      YYYYMMDDHHMMSS
 564          *      01234567890123
 565          */
 566         function sprintfDate( $format, $ts ) {
 567                 $s = '';
 568                 $raw = false;
 569                 $roman = false;
 570                 $hebrewNum = false;
 571                 $unix = false;
 572                 $rawToggle = false;
 573                 $iranian = false;
 574                 $hebrew = false;
 575                 $hijri = false;
 576                 $thai = false;
 577                 for ( $p = 0; $p < strlen( $format ); $p++ ) {
 578                         $num = false;
 579                         $code = $format[$p];
 580                         if ( $code == 'x' && $p < strlen( $format ) - 1 ) {
 581                                 $code .= $format[++$p];
 582                         }
 583
 584                         if ( ( $code === 'xi' || $code == 'xj' || $code == 'xk' || $code == 'xm' ) && $p < strlen( $format ) - 1 ) {
 585                                 $code .= $format[++$p];
 586                         }
 587
 588                         switch ( $code ) {
 589                                 case 'xx':
 590                                         $s .= 'x';
 591                                         break;
 592                                 case 'xn':
 593                                         $raw = true;
 594                                         break;
 595                                 case 'xN':
 596                                         $rawToggle = !$rawToggle;
 597                                         break;
 598                                 case 'xr':
 599                                         $roman = true;
 600                                         break;
 601                                 case 'xh':
 602                                         $hebrewNum = true;
 603                                         break;
 604                                 case 'xg':
 605                                         $s .= $this->getMonthNameGen( substr( $ts, 4, 2 ) );
 606                                         break;
 607                                 case 'xjx':
 608                                         if ( !$hebrew ) $hebrew = self::tsToHebrew( $ts );
 609                                         $s .= $this->getHebrewCalendarMonthNameGen( $hebrew[1] );
 610                                         break;
 611                                 case 'd':
 612                                         $num = substr( $ts, 6, 2 );
 613                                         break;
 614                                 case 'D':
 615                                         if ( !$unix ) $unix = wfTimestamp( TS_UNIX, $ts );
 616                                         $s .= $this->getWeekdayAbbreviation( gmdate( 'w', $unix ) + 1 );
 617                                         break;
 618                                 case 'j':
 619                                         $num = intval( substr( $ts, 6, 2 ) );
 620                                         break;
 621                                 case 'xij':
 622                                         if ( !$iranian ) $iranian = self::tsToIranian( $ts );
 623                                         $num = $iranian[2];
 624                                         break;
 625                                 case 'xmj':
 626                                         if ( !$hijri ) $hijri = self::tsToHijri( $ts );
 627                                         $num = $hijri[2];
 628                                         break;
 629                                 case 'xjj':
 630                                         if ( !$hebrew ) $hebrew = self::tsToHebrew( $ts );
 631                                         $num = $hebrew[2];
 632                                         break;
 633                                 case 'l':
 634                                         if ( !$unix ) $unix = wfTimestamp( TS_UNIX, $ts );
 635                                         $s .= $this->getWeekdayName( gmdate( 'w', $unix ) + 1 );
 636                                         break;
 637                                 case 'N':
 638                                         if ( !$unix ) $unix = wfTimestamp( TS_UNIX, $ts );
 639                                         $w = gmdate( 'w', $unix );
 640                                         $num = $w ? $w : 7;
 641                                         break;
 642                                 case 'w':
 643                                         if ( !$unix ) $unix = wfTimestamp( TS_UNIX, $ts );
 644                                         $num = gmdate( 'w', $unix );
 645                                         break;
 646                                 case 'z':
 647                                         if ( !$unix ) $unix = wfTimestamp( TS_UNIX, $ts );
 648                                         $num = gmdate( 'z', $unix );
 649                                         break;
 650                                 case 'W':
 651                                         if ( !$unix ) $unix = wfTimestamp( TS_UNIX, $ts );
 652                                         $num = gmdate( 'W', $unix );
 653                                         break;
 654                                 case 'F':
 655                                         $s .= $this->getMonthName( substr( $ts, 4, 2 ) );
 656                                         break;
 657                                 case 'xiF':
 658                                         if ( !$iranian ) $iranian = self::tsToIranian( $ts );
 659                                         $s .= $this->getIranianCalendarMonthName( $iranian[1] );
 660                                         break;
 661                                 case 'xmF':
 662                                         if ( !$hijri ) $hijri = self::tsToHijri( $ts );
 663                                         $s .= $this->getHijriCalendarMonthName( $hijri[1] );
 664                                         break;
 665                                 case 'xjF':
 666                                         if ( !$hebrew ) $hebrew = self::tsToHebrew( $ts );
 667                                         $s .= $this->getHebrewCalendarMonthName( $hebrew[1] );
 668                                         break;
 669                                 case 'm':
 670                                         $num = substr( $ts, 4, 2 );
 671                                         break;
 672                                 case 'M':
 673                                         $s .= $this->getMonthAbbreviation( substr( $ts, 4, 2 ) );
 674                                         break;
 675                                 case 'n':
 676                                         $num = intval( substr( $ts, 4, 2 ) );
 677                                         break;
 678                                 case 'xin':
 679                                         if ( !$iranian ) $iranian = self::tsToIranian( $ts );
 680                                         $num = $iranian[1];
 681                                         break;
 682                                 case 'xmn':
 683                                         if ( !$hijri ) $hijri = self::tsToHijri ( $ts );
 684                                         $num = $hijri[1];
 685                                         break;
 686                                 case 'xjn':
 687                                         if ( !$hebrew ) $hebrew = self::tsToHebrew( $ts );
 688                                         $num = $hebrew[1];
 689                                         break;
 690                                 case 't':
 691                                         if ( !$unix ) $unix = wfTimestamp( TS_UNIX, $ts );
 692                                         $num = gmdate( 't', $unix );
 693                                         break;
 694                                 case 'xjt':
 695                                         if ( !$hebrew ) $hebrew = self::tsToHebrew( $ts );
 696                                         $num = $hebrew[3];
 697                                         break;
 698                                 case 'L':
 699                                         if ( !$unix ) $unix = wfTimestamp( TS_UNIX, $ts );
 700                                         $num = gmdate( 'L', $unix );
 701                                         break;
 702                                 case 'Y':
 703                                         $num = substr( $ts, 0, 4 );
 704                                         break;
 705                                 case 'xiY':
 706                                         if ( !$iranian ) $iranian = self::tsToIranian( $ts );
 707                                         $num = $iranian[0];
 708                                         break;
 709                                 case 'xmY':
 710                                         if ( !$hijri ) $hijri = self::tsToHijri( $ts );
 711                                         $num = $hijri[0];
 712                                         break;
 713                                 case 'xjY':
 714                                         if ( !$hebrew ) $hebrew = self::tsToHebrew( $ts );
 715                                         $num = $hebrew[0];
 716                                         break;
 717                                 case 'xkY':
 718                                         if ( !$thai ) $thai = self::tsToThai( $ts );
 719                                         $num = $thai[0];
 720                                         break;
 721                                 case 'y':
 722                                         $num = substr( $ts, 2, 2 );
 723                                         break;
 724                                 case 'a':
 725                                         $s .= intval( substr( $ts, 8, 2 ) ) < 12 ? 'am' : 'pm';
 726                                         break;
 727                                 case 'A':
 728                                         $s .= intval( substr( $ts, 8, 2 ) ) < 12 ? 'AM' : 'PM';
 729                                         break;
 730                                 case 'g':
 731                                         $h = substr( $ts, 8, 2 );
 732                                         $num = $h % 12 ? $h % 12 : 12;
 733                                         break;
 734                                 case 'G':
 735                                         $num = intval( substr( $ts, 8, 2 ) );
 736                                         break;
 737                                 case 'h':
 738                                         $h = substr( $ts, 8, 2 );
 739                                         $num = sprintf( '%02d', $h % 12 ? $h % 12 : 12 );
 740                                         break;
 741                                 case 'H':
 742                                         $num = substr( $ts, 8, 2 );
 743                                         break;
 744                                 case 'i':
 745                                         $num = substr( $ts, 10, 2 );
 746                                         break;
 747                                 case 's':
 748                                         $num = substr( $ts, 12, 2 );
 749                                         break;
 750                                 case 'c':
 751                                         if ( !$unix ) $unix = wfTimestamp( TS_UNIX, $ts );
 752                                         $s .= gmdate( 'c', $unix );
 753                                         break;
 754                                 case 'r':
 755                                         if ( !$unix ) $unix = wfTimestamp( TS_UNIX, $ts );
 756                                         $s .= gmdate( 'r', $unix );
 757                                         break;
 758                                 case 'U':
 759                                         if ( !$unix ) $unix = wfTimestamp( TS_UNIX, $ts );
 760                                         $num = $unix;
 761                                         break;
 762                                 case '\\':
 763                                         # Backslash escaping
 764                                         if ( $p < strlen( $format ) - 1 ) {
 765                                                 $s .= $format[++$p];
 766                                         } else {
 767                                                 $s .= '\\';
 768                                         }
 769                                         break;
 770                                 case '"':
 771                                         # Quoted literal
 772                                         if ( $p < strlen( $format ) - 1 ) {
 773                                                 $endQuote = strpos( $format, '"', $p + 1 );
 774                                                 if ( $endQuote === false ) {
 775                                                         # No terminating quote, assume literal "
 776                                                         $s .= '"';
 777                                                 } else {
 778                                                         $s .= substr( $format, $p + 1, $endQuote - $p - 1 );
 779                                                         $p = $endQuote;
 780                                                 }
 781                                         } else {
 782                                                 # Quote at end of string, assume literal "
 783                                                 $s .= '"';
 784                                         }
 785                                         break;
 786                                 default:
 787                                         $s .= $format[$p];
 788                         }
 789                         if ( $num !== false ) {
 790                                 if ( $rawToggle || $raw ) {
 791                                         $s .= $num;
 792                                         $raw = false;
 793                                 } elseif ( $roman ) {
 794                                         $s .= self::romanNumeral( $num );
 795                                         $roman = false;
 796                                 } elseif( $hebrewNum ) {
 797                                         $s .= self::hebrewNumeral( $num );
 798                                         $hebrewNum = false;
 799                                 } else {
 800                                         $s .= $this->formatNum( $num, true );
 801                                 }
 802                                 $num = false;
 803                         }
 804                 }
 805                 return $s;
 806         }
 807
 808         private static $GREG_DAYS = array( 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 );
 809         private static $IRANIAN_DAYS = array( 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29 );
 810         /**
 811          * Algorithm by Roozbeh Pournader and Mohammad Toossi to convert
 812          * Gregorian dates to Iranian dates. Originally written in C, it
 813          * is released under the terms of GNU Lesser General Public
 814          * License. Conversion to PHP was performed by Niklas Laxström.
 815          *
 816          * Link: http://www.farsiweb.info/jalali/jalali.c
 817          */
 818         private static function tsToIranian( $ts ) {
 819                 $gy = substr( $ts, 0, 4 ) -1600;
 820                 $gm = substr( $ts, 4, 2 ) -1;
 821                 $gd = substr( $ts, 6, 2 ) -1;
 822
 823                 # Days passed from the beginning (including leap years)
 824                 $gDayNo = 365*$gy
 825                         + floor(($gy+3) / 4)
 826                         - floor(($gy+99) / 100)
 827                         + floor(($gy+399) / 400);
 828
 829
 830                 // Add days of the past months of this year
 831                 for( $i = 0; $i < $gm; $i++ ) {
 832                         $gDayNo += self::$GREG_DAYS[$i];
 833                 }
 834
 835                 // Leap years
 836                 if ( $gm > 1 && (($gy%4===0 && $gy%100!==0 || ($gy%400==0)))) {
 837                         $gDayNo++;
 838                 }
 839
 840                 // Days passed in current month
 841                 $gDayNo += $gd;
 842
 843                 $jDayNo = $gDayNo - 79;
 844
 845                 $jNp = floor($jDayNo / 12053);
 846                 $jDayNo %= 12053;
 847
 848                 $jy = 979 + 33*$jNp + 4*floor($jDayNo/1461);
 849                 $jDayNo %= 1461;
 850
 851                 if ( $jDayNo >= 366 ) {
 852                         $jy += floor(($jDayNo-1)/365);
 853                         $jDayNo = floor(($jDayNo-1)%365);
 854                 }
 855
 856                 for ( $i = 0; $i < 11 && $jDayNo >= self::$IRANIAN_DAYS[$i]; $i++ ) {
 857                         $jDayNo -= self::$IRANIAN_DAYS[$i];
 858                 }
 859
 860                 $jm= $i+1;
 861                 $jd= $jDayNo+1;
 862
 863                 return array($jy, $jm, $jd);
 864         }
 865         /**
 866          * Converting Gregorian dates to Hijri dates.
 867          *
 868          * Based on a PHP-Nuke block by Sharjeel which is released under GNU/GPL license
 869          *
 870          * @link http://phpnuke.org/modules.php?name=News&file=article&sid=8234&mode=thread&order=0&thold=0
 871          */
 872         private static function tsToHijri ( $ts ) {
 873                 $year = substr( $ts, 0, 4 );
 874                 $month = substr( $ts, 4, 2 );
 875                 $day = substr( $ts, 6, 2 );
 876
 877                 $zyr = $year;
 878                 $zd=$day;
 879                 $zm=$month;
 880                 $zy=$zyr;
 881
 882
 883
 884                 if (($zy>1582)||(($zy==1582)&&($zm>10))||(($zy==1582)&&($zm==10)&&($zd>14)))
 885                         {
 886
 887
 888                                     $zjd=(int)((1461*($zy + 4800 + (int)( ($zm-14) /12) ))/4) + (int)((367*($zm-2-12*((int)(($zm-14)/12))))/12)-(int)((3*(int)(( ($zy+4900+(int)(($zm-14)/12))/100)))/4)+$zd-32075;
 889                                     }
 890                  else
 891                         {
 892                                     $zjd = 367*$zy-(int)((7*($zy+5001+(int)(($zm-9)/7)))/4)+(int)((275*$zm)/9)+$zd+1729777;
 893                         }
 894
 895                 $zl=$zjd-1948440+10632;
 896                 $zn=(int)(($zl-1)/10631);
 897                 $zl=$zl-10631*$zn+354;
 898                 $zj=((int)((10985-$zl)/5316))*((int)((50*$zl)/17719))+((int)($zl/5670))*((int)((43*$zl)/15238));
 899                 $zl=$zl-((int)((30-$zj)/15))*((int)((17719*$zj)/50))-((int)($zj/16))*((int)((15238*$zj)/43))+29;
 900                 $zm=(int)((24*$zl)/709);
 901                 $zd=$zl-(int)((709*$zm)/24);
 902                 $zy=30*$zn+$zj-30;
 903
 904                 return array ($zy, $zm, $zd);
 905         }
 906
 907         /**
 908          * Converting Gregorian dates to Hebrew dates.
 909          *
 910          * Based on a JavaScript code by Abu Mami and Yisrael Hersch
 911          * (abu-mami@kaluach.net, http://www.kaluach.net), who permitted
 912          * to translate the relevant functions into PHP and release them under
 913          * GNU GPL.
 914          */
 915         private static function tsToHebrew( $ts ) {
 916                 # Parse date
 917                 $year = substr( $ts, 0, 4 );
 918                 $month = substr( $ts, 4, 2 );
 919                 $day = substr( $ts, 6, 2 );
 920
 921                 # Calculate Hebrew year
 922                 $hebrewYear = $year + 3760;
 923
 924                 # Month number when September = 1, August = 12
 925                 $month += 4;
 926                 if( $month > 12 ) {
 927                         # Next year
 928                         $month -= 12;
 929                         $year++;
 930                         $hebrewYear++;
 931                 }
 932
 933                 # Calculate day of year from 1 September
 934                 $dayOfYear = $day;
 935                 for( $i = 1; $i < $month; $i++ ) {
 936                         if( $i == 6 ) {
 937                                 # February
 938                                 $dayOfYear += 28;
 939                                 # Check if the year is leap
 940                                 if( $year % 400 == 0 || ( $year % 4 == 0 && $year % 100 > 0 ) ) {
 941                                         $dayOfYear++;
 942                                 }
 943                         } elseif( $i == 8 || $i == 10 || $i == 1 || $i == 3 ) {
 944                                 $dayOfYear += 30;
 945                         } else {
 946                                 $dayOfYear += 31;
 947                         }
 948                 }
 949
 950                 # Calculate the start of the Hebrew year
 951                 $start = self::hebrewYearStart( $hebrewYear );
 952
 953                 # Calculate next year's start
 954                 if( $dayOfYear <= $start ) {
 955                         # Day is before the start of the year - it is the previous year
 956                         # Next year's start
 957                         $nextStart = $start;
 958                         # Previous year
 959                         $year--;
 960                         $hebrewYear--;
 961                         # Add days since previous year's 1 September
 962                         $dayOfYear += 365;
 963                         if( ( $year % 400 == 0 ) || ( $year % 100 != 0 && $year % 4 == 0 ) ) {
 964                                 # Leap year
 965                                 $dayOfYear++;
 966                         }
 967                         # Start of the new (previous) year
 968                         $start = self::hebrewYearStart( $hebrewYear );
 969                 } else {
 970                         # Next year's start
 971                         $nextStart = self::hebrewYearStart( $hebrewYear + 1 );
 972                 }
 973
 974                 # Calculate Hebrew day of year
 975                 $hebrewDayOfYear = $dayOfYear - $start;
 976
 977                 # Difference between year's days
 978                 $diff = $nextStart - $start;
 979                 # Add 12 (or 13 for leap years) days to ignore the difference between
 980                 # Hebrew and Gregorian year (353 at least vs. 365/6) - now the
 981                 # difference is only about the year type
 982                 if( ( $year % 400 == 0 ) || ( $year % 100 != 0 && $year % 4 == 0 ) ) {
 983                         $diff += 13;
 984                 } else {
 985                         $diff += 12;
 986                 }
 987
 988                 # Check the year pattern, and is leap year
 989                 # 0 means an incomplete year, 1 means a regular year, 2 means a complete year
 990                 # This is mod 30, to work on both leap years (which add 30 days of Adar I)
 991                 # and non-leap years
 992                 $yearPattern = $diff % 30;
 993                 # Check if leap year
 994                 $isLeap = $diff >= 30;
 995
 996                 # Calculate day in the month from number of day in the Hebrew year
 997                 # Don't check Adar - if the day is not in Adar, we will stop before;
 998                 # if it is in Adar, we will use it to check if it is Adar I or Adar II
 999                 $hebrewDay = $hebrewDayOfYear;
1000                 $hebrewMonth = 1;
1001                 $days = 0;
1002                 while( $hebrewMonth <= 12 ) {
1003                         # Calculate days in this month
1004                         if( $isLeap && $hebrewMonth == 6 ) {
1005                                 # Adar in a leap year
1006                                 if( $isLeap ) {
1007                                         # Leap year - has Adar I, with 30 days, and Adar II, with 29 days
1008                                         $days = 30;
1009                                         if( $hebrewDay <= $days ) {
1010                                                 # Day in Adar I
1011                                                 $hebrewMonth = 13;
1012                                         } else {
1013                                                 # Subtract the days of Adar I
1014                                                 $hebrewDay -= $days;
1015                                                 # Try Adar II
1016                                                 $days = 29;
1017                                                 if( $hebrewDay <= $days ) {
1018                                                         # Day in Adar II
1019                                                         $hebrewMonth = 14;
1020                                                 }
1021                                         }
1022                                 }
1023                         } elseif( $hebrewMonth == 2 && $yearPattern == 2 ) {
1024                                 # Cheshvan in a complete year (otherwise as the rule below)
1025                                 $days = 30;
1026                         } elseif( $hebrewMonth == 3 && $yearPattern == 0 ) {
1027                                 # Kislev in an incomplete year (otherwise as the rule below)
1028                                 $days = 29;
1029                         } else {
1030                                 # Odd months have 30 days, even have 29
1031                                 $days = 30 - ( $hebrewMonth - 1 ) % 2;
1032                         }
1033                         if( $hebrewDay <= $days ) {
1034                                 # In the current month
1035                                 break;
1036                         } else {
1037                                 # Subtract the days of the current month
1038                                 $hebrewDay -= $days;
1039                                 # Try in the next month
1040                                 $hebrewMonth++;
1041                         }
1042                 }
1043
1044                 return array( $hebrewYear, $hebrewMonth, $hebrewDay, $days );
1045         }
1046
1047         /**
1048          * This calculates the Hebrew year start, as days since 1 September.
1049          * Based on Carl Friedrich Gauss algorithm for finding Easter date.
1050          * Used for Hebrew date.
1051          */
1052         private static function hebrewYearStart( $year ) {
1053                 $a = intval( ( 12 * ( $year - 1 ) + 17 ) % 19 );
1054                 $b = intval( ( $year - 1 ) % 4 );
1055                 $m = 32.044093161144 + 1.5542417966212 * $a +  $b / 4.0 - 0.0031777940220923 * ( $year - 1 );
1056                 if( $m < 0 ) {
1057                         $m--;
1058                 }
1059                 $Mar = intval( $m );
1060                 if( $m < 0 ) {
1061                         $m++;
1062                 }
1063                 $m -= $Mar;
1064
1065                 $c = intval( ( $Mar + 3 * ( $year - 1 ) + 5 * $b + 5 ) % 7);
1066                 if( $c == 0 && $a > 11 && $m >= 0.89772376543210 ) {
1067                         $Mar++;
1068                 } else if( $c == 1 && $a > 6 && $m >= 0.63287037037037 ) {
1069                         $Mar += 2;
1070                 } else if( $c == 2 || $c == 4 || $c == 6 ) {
1071                         $Mar++;
1072                 }
1073
1074                 $Mar += intval( ( $year - 3761 ) / 100 ) - intval( ( $year - 3761 ) / 400 ) - 24;
1075                 return $Mar;
1076         }
1077
1078         /**
1079          * Algorithm to convert Gregorian dates to Thai solar dates.
1080          *
1081          * Link: http://en.wikipedia.org/wiki/Thai_solar_calendar
1082          *
1083          * @param $ts String: 14-character timestamp
1084          * @return array converted year, month, day
1085          */
1086         private static function tsToThai( $ts ) {
1087                 $gy = substr( $ts, 0, 4 );
1088                 $gm = substr( $ts, 4, 2 );
1089                 $gd = substr( $ts, 6, 2 );
1090
1091                 # Add 543 years to the Gregorian calendar
1092                 # Months and days are identical
1093                 $gy_thai = $gy + 543;
1094
1095                 return array( $gy_thai, $gm, $gd );
1096         }
1097
1098
1099         /**
1100          * Roman number formatting up to 3000
1101          */
1102         static function romanNumeral( $num ) {
1103                 static $table = array(
1104                         array( '', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX', 'X' ),
1105                         array( '', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC', 'C' ),
1106                         array( '', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM', 'M' ),
1107                         array( '', 'M', 'MM', 'MMM' )
1108                 );
1109
1110                 $num = intval( $num );
1111                 if ( $num > 3000 || $num <= 0 ) {
1112                         return $num;
1113                 }
1114
1115                 $s = '';
1116                 for ( $pow10 = 1000, $i = 3; $i >= 0; $pow10 /= 10, $i-- ) {
1117                         if ( $num >= $pow10 ) {
1118                                 $s .= $table[$i][floor($num / $pow10)];
1119                         }
1120                         $num = $num % $pow10;
1121                 }
1122                 return $s;
1123         }
1124
1125         /**
1126          * Hebrew Gematria number formatting up to 9999
1127          */
1128         static function hebrewNumeral( $num ) {
1129                 static $table = array(
1130                         array( '', 'א', 'ב', 'ג', 'ד', 'ה', 'ו', 'ז', 'ח', 'ט', 'י' ),
1131                         array( '', 'י', 'כ', 'ל', 'מ', 'נ', 'ס', 'ע', 'פ', 'צ', 'ק' ),
1132                         array( '', 'ק', 'ר', 'ש', 'ת', 'תק', 'תר', 'תש', 'תת', 'תתק', 'תתר' ),
1133                         array( '', 'א', 'ב', 'ג', 'ד', 'ה', 'ו', 'ז', 'ח', 'ט', 'י' )
1134                 );
1135
1136                 $num = intval( $num );
1137                 if ( $num > 9999 || $num <= 0 ) {
1138                         return $num;
1139                 }
1140
1141                 $s = '';
1142                 for ( $pow10 = 1000, $i = 3; $i >= 0; $pow10 /= 10, $i-- ) {
1143                         if ( $num >= $pow10 ) {
1144                                 if ( $num == 15 || $num == 16 ) {
1145                                         $s .= $table[0][9] . $table[0][$num - 9];
1146                                         $num = 0;
1147                                 } else {
1148                                         $s .= $table[$i][intval( ( $num / $pow10 ) )];
1149                                         if( $pow10 == 1000 ) {
1150                                                 $s .= "'";
1151                                         }
1152                                 }
1153                         }
1154                         $num = $num % $pow10;
1155                 }
1156                 if( strlen( $s ) == 2 ) {
1157                         $str = $s . "'";
1158                 } else  {
1159                         $str = substr( $s, 0, strlen( $s ) - 2 ) . '"';
1160                         $str .= substr( $s, strlen( $s ) - 2, 2 );
1161                 }
1162                 $start = substr( $str, 0, strlen( $str ) - 2 );
1163                 $end = substr( $str, strlen( $str ) - 2 );
1164                 switch( $end ) {
1165                         case 'כ':
1166                                 $str = $start . 'ך';
1167                                 break;
1168                         case 'מ':
1169                                 $str = $start . 'ם';
1170                                 break;
1171                         case 'נ':
1172                                 $str = $start . 'ן';
1173                                 break;
1174                         case 'פ':
1175                                 $str = $start . 'ף';
1176                                 break;
1177                         case 'צ':
1178                                 $str = $start . 'ץ';
1179                                 break;
1180                 }
1181                 return $str;
1182         }
1183
1184         /**
1185          * This is meant to be used by time(), date(), and timeanddate() to get
1186          * the date preference they're supposed to use, it should be used in
1187          * all children.
1188          *
1189          *<code>
1190          * function timeanddate([...], $format = true) {
1191          *      $datePreference = $this->dateFormat($format);
1192          * [...]
1193          * }
1194          *</code>
1195          *
1196          * @param $usePrefs Mixed: if true, the user's preference is used
1197          *                         if false, the site/language default is used
1198          *                         if int/string, assumed to be a format.
1199          * @return string
1200          */
1201         function dateFormat( $usePrefs = true ) {
1202                 global $wgUser;
1203
1204                 if( is_bool( $usePrefs ) ) {
1205                         if( $usePrefs ) {
1206                                 $datePreference = $wgUser->getDatePreference();
1207                         } else {
1208                                 $options = User::getDefaultOptions();
1209                                 $datePreference = (string)$options['date'];
1210                         }
1211                 } else {
1212                         $datePreference = (string)$usePrefs;
1213                 }
1214
1215                 // return int
1216                 if( $datePreference == '' ) {
1217                         return 'default';
1218                 }
1219
1220                 return $datePreference;
1221         }
1222
1223         /**
1224          * @param $ts Mixed: the time format which needs to be turned into a
1225          *            date('YmdHis') format with wfTimestamp(TS_MW,$ts)
1226          * @param $adj Bool: whether to adjust the time output according to the
1227          *             user configured offset ($timecorrection)
1228          * @param $format Mixed: true to use user's date format preference
1229          * @param $timecorrection String: the time offset as returned by
1230          *                        validateTimeZone() in Special:Preferences
1231          * @return string
1232          */
1233         function date( $ts, $adj = false, $format = true, $timecorrection = false ) {
1234                 $this->load();
1235                 if ( $adj ) {
1236                         $ts = $this->userAdjust( $ts, $timecorrection );
1237                 }
1238
1239                 $pref = $this->dateFormat( $format );
1240                 if( $pref == 'default' || !isset( $this->dateFormats["$pref date"] ) ) {
1241                         $pref = $this->defaultDateFormat;
1242                 }
1243                 return $this->sprintfDate( $this->dateFormats["$pref date"], $ts );
1244         }
1245
1246         /**
1247          * @param $ts Mixed: the time format which needs to be turned into a
1248          *            date('YmdHis') format with wfTimestamp(TS_MW,$ts)
1249          * @param $adj Bool: whether to adjust the time output according to the
1250          *             user configured offset ($timecorrection)
1251          * @param $format Mixed: true to use user's date format preference
1252          * @param $timecorrection String: the time offset as returned by
1253          *                        validateTimeZone() in Special:Preferences
1254          * @return string
1255          */
1256         function time( $ts, $adj = false, $format = true, $timecorrection = false ) {
1257                 $this->load();
1258                 if ( $adj ) {
1259                         $ts = $this->userAdjust( $ts, $timecorrection );
1260                 }
1261
1262                 $pref = $this->dateFormat( $format );
1263                 if( $pref == 'default' || !isset( $this->dateFormats["$pref time"] ) ) {
1264                         $pref = $this->defaultDateFormat;
1265                 }
1266                 return $this->sprintfDate( $this->dateFormats["$pref time"], $ts );
1267         }
1268
1269         /**
1270          * @param $ts Mixed: the time format which needs to be turned into a
1271          *            date('YmdHis') format with wfTimestamp(TS_MW,$ts)
1272          * @param $adj Bool: whether to adjust the time output according to the
1273          *             user configured offset ($timecorrection)
1274          * @param $format Mixed: what format to return, if it's false output the
1275          *                default one (default true)
1276          * @param $timecorrection String: the time offset as returned by
1277          *                        validateTimeZone() in Special:Preferences
1278          * @return string
1279          */
1280         function timeanddate( $ts, $adj = false, $format = true, $timecorrection = false) {
1281                 $this->load();
1282
1283                 $ts = wfTimestamp( TS_MW, $ts );
1284
1285                 if ( $adj ) {
1286                         $ts = $this->userAdjust( $ts, $timecorrection );
1287                 }
1288
1289                 $pref = $this->dateFormat( $format );
1290                 if( $pref == 'default' || !isset( $this->dateFormats["$pref both"] ) ) {
1291                         $pref = $this->defaultDateFormat;
1292                 }
1293
1294                 return $this->sprintfDate( $this->dateFormats["$pref both"], $ts );
1295         }
1296
1297         function getMessage( $key ) {
1298                 $this->load();
1299                 return isset( $this->messages[$key] ) ? $this->messages[$key] : null;
1300         }
1301
1302         function getAllMessages() {
1303                 $this->load();
1304                 return $this->messages;
1305         }
1306
1307         function iconv( $in, $out, $string ) {
1308                 # For most languages, this is a wrapper for iconv
1309                 return iconv( $in, $out . '//IGNORE', $string );
1310         }
1311
1312         // callback functions for uc(), lc(), ucwords(), ucwordbreaks()
1313         function ucwordbreaksCallbackAscii($matches){
1314                 return $this->ucfirst($matches[1]);
1315         }
1316
1317         function ucwordbreaksCallbackMB($matches){
1318                 return mb_strtoupper($matches[0]);
1319         }
1320
1321         function ucCallback($matches){
1322                 list( $wikiUpperChars ) = self::getCaseMaps();
1323                 return strtr( $matches[1], $wikiUpperChars );
1324         }
1325
1326         function lcCallback($matches){
1327                 list( , $wikiLowerChars ) = self::getCaseMaps();
1328                 return strtr( $matches[1], $wikiLowerChars );
1329         }
1330
1331         function ucwordsCallbackMB($matches){
1332                 return mb_strtoupper($matches[0]);
1333         }
1334
1335         function ucwordsCallbackWiki($matches){
1336                 list( $wikiUpperChars ) = self::getCaseMaps();
1337                 return strtr( $matches[0], $wikiUpperChars );
1338         }
1339
1340         function ucfirst( $str ) {
1341                 if ( empty($str) ) return $str;
1342                 if ( ord($str[0]) < 128 ) return ucfirst($str);
1343                 else return self::uc($str,true); // fall back to more complex logic in case of multibyte strings
1344         }
1345
1346         function uc( $str, $first = false ) {
1347                 if ( function_exists( 'mb_strtoupper' ) ) {
1348                         if ( $first ) {
1349                                 if ( self::isMultibyte( $str ) ) {
1350                                         return mb_strtoupper( mb_substr( $str, 0, 1 ) ) . mb_substr( $str, 1 );
1351                                 } else {
1352                                         return ucfirst( $str );
1353                                 }
1354                         } else {
1355                                 return self::isMultibyte( $str ) ? mb_strtoupper( $str ) : strtoupper( $str );
1356                         }
1357                 } else {
1358                         if ( self::isMultibyte( $str ) ) {
1359                                 list( $wikiUpperChars ) = $this->getCaseMaps();
1360                                 $x = $first ? '^' : '';
1361                                 return preg_replace_callback(
1362                                         "/$x([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)/",
1363                                         array($this,"ucCallback"),
1364                                         $str
1365                                 );
1366                         } else {
1367                                 return $first ? ucfirst( $str ) : strtoupper( $str );
1368                         }
1369                 }
1370         }
1371
1372         function lcfirst( $str ) {
1373                 if ( empty($str) ) return $str;
1374                 if ( is_string( $str ) && ord($str[0]) < 128 ) {
1375                         // editing string in place = cool
1376                         $str[0]=strtolower($str[0]);
1377                         return $str;
1378                 }
1379                 else return self::lc( $str, true );
1380         }
1381
1382         function lc( $str, $first = false ) {
1383                 if ( function_exists( 'mb_strtolower' ) )
1384                         if ( $first )
1385                                 if ( self::isMultibyte( $str ) )
1386                                         return mb_strtolower( mb_substr( $str, 0, 1 ) ) . mb_substr( $str, 1 );
1387                                 else
1388                                         return strtolower( substr( $str, 0, 1 ) ) . substr( $str, 1 );
1389                         else
1390                                 return self::isMultibyte( $str ) ? mb_strtolower( $str ) : strtolower( $str );
1391                 else
1392                         if ( self::isMultibyte( $str ) ) {
1393                                 list( , $wikiLowerChars ) = self::getCaseMaps();
1394                                 $x = $first ? '^' : '';
1395                                 return preg_replace_callback(
1396                                         "/$x([A-Z]|[\\xc0-\\xff][\\x80-\\xbf]*)/",
1397                                         array($this,"lcCallback"),
1398                                         $str
1399                                 );
1400                         } else
1401                                 return $first ? strtolower( substr( $str, 0, 1 ) ) . substr( $str, 1 ) : strtolower( $str );
1402         }
1403
1404         function isMultibyte( $str ) {
1405                 return (bool)preg_match( '/[\x80-\xff]/', $str );
1406         }
1407
1408         function ucwords($str) {
1409                 if ( self::isMultibyte( $str ) ) {
1410                         $str = self::lc($str);
1411
1412                         // regexp to find first letter in each word (i.e. after each space)
1413                         $replaceRegexp = "/^([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)| ([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)/";
1414
1415                         // function to use to capitalize a single char
1416                         if ( function_exists( 'mb_strtoupper' ) )
1417                                 return preg_replace_callback(
1418                                         $replaceRegexp,
1419                                         array($this,"ucwordsCallbackMB"),
1420                                         $str
1421                                 );
1422                         else
1423                                 return preg_replace_callback(
1424                                         $replaceRegexp,
1425                                         array($this,"ucwordsCallbackWiki"),
1426                                         $str
1427                                 );
1428                 }
1429                 else
1430                         return ucwords( strtolower( $str ) );
1431         }
1432
1433   # capitalize words at word breaks
1434         function ucwordbreaks($str){
1435                 if (self::isMultibyte( $str ) ) {
1436                         $str = self::lc($str);
1437
1438                         // since \b doesn't work for UTF-8, we explicitely define word break chars
1439                         $breaks= "[ \-\(\)\}\{\.,\?!]";
1440
1441                         // find first letter after word break
1442                         $replaceRegexp = "/^([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)|$breaks([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)/";
1443
1444                         if ( function_exists( 'mb_strtoupper' ) )
1445                                 return preg_replace_callback(
1446                                         $replaceRegexp,
1447                                         array($this,"ucwordbreaksCallbackMB"),
1448                                         $str
1449                                 );
1450                         else
1451                                 return preg_replace_callback(
1452                                         $replaceRegexp,
1453                                         array($this,"ucwordsCallbackWiki"),
1454                                         $str
1455                                 );
1456                 }
1457                 else
1458                         return preg_replace_callback(
1459                         '/\b([\w\x80-\xff]+)\b/',
1460                         array($this,"ucwordbreaksCallbackAscii"),
1461                         $str );
1462         }
1463
1464         /**
1465          * Return a case-folded representation of $s
1466          *
1467          * This is a representation such that caseFold($s1)==caseFold($s2) if $s1
1468          * and $s2 are the same except for the case of their characters. It is not
1469          * necessary for the value returned to make sense when displayed.
1470          *
1471          * Do *not* perform any other normalisation in this function. If a caller
1472          * uses this function when it should be using a more general normalisation
1473          * function, then fix the caller.
1474          */
1475         function caseFold( $s ) {
1476                 return $this->uc( $s );
1477         }
1478
1479         function checkTitleEncoding( $s ) {
1480                 if( is_array( $s ) ) {
1481                         wfDebugDieBacktrace( 'Given array to checkTitleEncoding.' );
1482                 }
1483                 # Check for non-UTF-8 URLs
1484                 $ishigh = preg_match( '/[\x80-\xff]/', $s);
1485                 if(!$ishigh) return $s;
1486
1487                 $isutf8 = preg_match( '/^([\x00-\x7f]|[\xc0-\xdf][\x80-\xbf]|' .
1488                 '[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xf7][\x80-\xbf]{3})+$/', $s );
1489                 if( $isutf8 ) return $s;
1490
1491                 return $this->iconv( $this->fallback8bitEncoding(), "utf-8", $s );
1492         }
1493
1494         function fallback8bitEncoding() {
1495                 $this->load();
1496                 return $this->fallback8bitEncoding;
1497         }
1498
1499         /**
1500          * Some languages have special punctuation to strip out
1501          * or characters which need to be converted for MySQL's
1502          * indexing to grok it correctly. Make such changes here.
1503          *
1504          * @param $string String
1505          * @return String
1506          */
1507         function stripForSearch( $string ) {
1508                 global $wgDBtype;
1509                 if ( $wgDBtype != 'mysql' ) {
1510                         return $string;
1511                 }
1512
1513                 # MySQL fulltext index doesn't grok utf-8, so we
1514                 # need to fold cases and convert to hex
1515
1516                 wfProfileIn( __METHOD__ );
1517                 if( function_exists( 'mb_strtolower' ) ) {
1518                         $out = preg_replace(
1519                                 "/([\\xc0-\\xff][\\x80-\\xbf]*)/e",
1520                                 "'U8' . bin2hex( \"$1\" )",
1521                                 mb_strtolower( $string ) );
1522                 } else {
1523                         list( , $wikiLowerChars ) = self::getCaseMaps();
1524                         $out = preg_replace(
1525                                 "/([\\xc0-\\xff][\\x80-\\xbf]*)/e",
1526                                 "'U8' . bin2hex( strtr( \"\$1\", \$wikiLowerChars ) )",
1527                                 $string );
1528                 }
1529                 wfProfileOut( __METHOD__ );
1530                 return $out;
1531         }
1532
1533         function convertForSearchResult( $termsArray ) {
1534                 # some languages, e.g. Chinese, need to do a conversion
1535                 # in order for search results to be displayed correctly
1536                 return $termsArray;
1537         }
1538
1539         /**
1540          * Get the first character of a string.
1541          *
1542          * @param $s string
1543          * @return string
1544          */
1545         function firstChar( $s ) {
1546                 $matches = array();
1547                 preg_match( '/^([\x00-\x7f]|[\xc0-\xdf][\x80-\xbf]|' .
1548                 '[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xf7][\x80-\xbf]{3})/', $s, $matches);
1549
1550                 if ( isset( $matches[1] ) ) {
1551                         if ( strlen( $matches[1] ) != 3 ) {
1552                                 return $matches[1];
1553                         }
1554
1555                         // Break down Hangul syllables to grab the first jamo
1556                         $code = utf8ToCodepoint( $matches[1] );
1557                         if ( $code < 0xac00 || 0xd7a4 <= $code) {
1558                                 return $matches[1];
1559                         } elseif ( $code < 0xb098 ) {
1560                                 return "\xe3\x84\xb1";
1561                         } elseif ( $code < 0xb2e4 ) {
1562                                 return "\xe3\x84\xb4";
1563                         } elseif ( $code < 0xb77c ) {
1564                                 return "\xe3\x84\xb7";
1565                         } elseif ( $code < 0xb9c8 ) {
1566                                 return "\xe3\x84\xb9";
1567                         } elseif ( $code < 0xbc14 ) {
1568                                 return "\xe3\x85\x81";
1569                         } elseif ( $code < 0xc0ac ) {
1570                                 return "\xe3\x85\x82";
1571                         } elseif ( $code < 0xc544 ) {
1572                                 return "\xe3\x85\x85";
1573                         } elseif ( $code < 0xc790 ) {
1574                                 return "\xe3\x85\x87";
1575                         } elseif ( $code < 0xcc28 ) {
1576                                 return "\xe3\x85\x88";
1577                         } elseif ( $code < 0xce74 ) {
1578                                 return "\xe3\x85\x8a";
1579                         } elseif ( $code < 0xd0c0 ) {
1580                                 return "\xe3\x85\x8b";
1581                         } elseif ( $code < 0xd30c ) {
1582                                 return "\xe3\x85\x8c";
1583                         } elseif ( $code < 0xd558 ) {
1584                                 return "\xe3\x85\x8d";
1585                         } else {
1586                                 return "\xe3\x85\x8e";
1587                         }
1588                 } else {
1589                         return "";
1590                 }
1591         }
1592
1593         function initEncoding() {
1594                 # Some languages may have an alternate char encoding option
1595                 # (Esperanto X-coding, Japanese furigana conversion, etc)
1596                 # If this language is used as the primary content language,
1597                 # an override to the defaults can be set here on startup.
1598         }
1599
1600         function recodeForEdit( $s ) {
1601                 # For some languages we'll want to explicitly specify
1602                 # which characters make it into the edit box raw
1603                 # or are converted in some way or another.
1604                 # Note that if wgOutputEncoding is different from
1605                 # wgInputEncoding, this text will be further converted
1606                 # to wgOutputEncoding.
1607                 global $wgEditEncoding;
1608                 if( $wgEditEncoding == '' or
1609                   $wgEditEncoding == 'UTF-8' ) {
1610                         return $s;
1611                 } else {
1612                         return $this->iconv( 'UTF-8', $wgEditEncoding, $s );
1613                 }
1614         }
1615
1616         function recodeInput( $s ) {
1617                 # Take the previous into account.
1618                 global $wgEditEncoding;
1619                 if($wgEditEncoding != "") {
1620                         $enc = $wgEditEncoding;
1621                 } else {
1622                         $enc = 'UTF-8';
1623                 }
1624                 if( $enc == 'UTF-8' ) {
1625                         return $s;
1626                 } else {
1627                         return $this->iconv( $enc, 'UTF-8', $s );
1628                 }
1629         }
1630
1631         /**
1632          * For right-to-left language support
1633          *
1634          * @return bool
1635          */
1636         function isRTL() {
1637                 $this->load();
1638                 return $this->rtl;
1639         }
1640
1641         /**
1642          * A hidden direction mark (LRM or RLM), depending on the language direction
1643          *
1644          * @return string
1645          */
1646         function getDirMark() {
1647                 return $this->isRTL() ? "\xE2\x80\x8F" : "\xE2\x80\x8E";
1648         }
1649
1650         /**
1651          * An arrow, depending on the language direction
1652          *
1653          * @return string
1654          */
1655         function getArrow() {
1656                 return $this->isRTL() ? '←' : '→';
1657         }
1658
1659         /**
1660          * To allow "foo[[bar]]" to extend the link over the whole word "foobar"
1661          *
1662          * @return bool
1663          */
1664         function linkPrefixExtension() {
1665                 $this->load();
1666                 return $this->linkPrefixExtension;
1667         }
1668
1669         function &getMagicWords() {
1670                 $this->load();
1671                 return $this->magicWords;
1672         }
1673
1674         # Fill a MagicWord object with data from here
1675         function getMagic( &$mw ) {
1676                 if ( !$this->mMagicHookDone ) {
1677                         $this->mMagicHookDone = true;
1678                         wfRunHooks( 'LanguageGetMagic', array( &$this->mMagicExtensions, $this->getCode() ) );
1679                 }
1680                 if ( isset( $this->mMagicExtensions[$mw->mId] ) ) {
1681                         $rawEntry = $this->mMagicExtensions[$mw->mId];
1682                 } else {
1683                         $magicWords =& $this->getMagicWords();
1684                         if ( isset( $magicWords[$mw->mId] ) ) {
1685                                 $rawEntry = $magicWords[$mw->mId];
1686                         } else {
1687                                 # Fall back to English if local list is incomplete
1688                                 $magicWords =& Language::getMagicWords();
1689                                 if ( !isset($magicWords[$mw->mId]) ) { throw new MWException("Magic word not found" ); }
1690                                 $rawEntry = $magicWords[$mw->mId];
1691                         }
1692                 }
1693
1694                 if( !is_array( $rawEntry ) ) {
1695                         error_log( "\"$rawEntry\" is not a valid magic thingie for \"$mw->mId\"" );
1696                 } else {
1697                         $mw->mCaseSensitive = $rawEntry[0];
1698                         $mw->mSynonyms = array_slice( $rawEntry, 1 );
1699                 }
1700         }
1701
1702         /**
1703          * Add magic words to the extension array
1704          */
1705         function addMagicWordsByLang( $newWords ) {
1706                 $code = $this->getCode();
1707                 $fallbackChain = array();
1708                 while ( $code && !in_array( $code, $fallbackChain ) ) {
1709                         $fallbackChain[] = $code;
1710                         $code = self::getFallbackFor( $code );
1711                 }
1712                 if ( !in_array( 'en', $fallbackChain ) ) {
1713                         $fallbackChain[] = 'en';
1714                 }
1715                 $fallbackChain = array_reverse( $fallbackChain );
1716                 foreach ( $fallbackChain as $code ) {
1717                         if ( isset( $newWords[$code] ) ) {
1718                                 $this->mMagicExtensions = $newWords[$code] + $this->mMagicExtensions;
1719                         }
1720                 }
1721         }
1722
1723         /**
1724          * Get special page names, as an associative array
1725          *   case folded alias => real name
1726          */
1727         function getSpecialPageAliases() {
1728                 $this->load();
1729
1730                 // Cache aliases because it may be slow to load them
1731                 if ( !isset( $this->mExtendedSpecialPageAliases ) ) {
1732
1733                         // Initialise array
1734                         $this->mExtendedSpecialPageAliases = $this->specialPageAliases;
1735
1736                         global $wgExtensionAliasesFiles;
1737                         foreach ( $wgExtensionAliasesFiles as $file ) {
1738
1739                                 // Fail fast
1740                                 if ( !file_exists($file) )
1741                                         throw new MWException( 'Aliases file does not exist' );
1742
1743                                 $aliases = array();
1744                                 require($file);
1745
1746                                 // Check the availability of aliases
1747                                 if ( !isset($aliases['en']) )
1748                                         throw new MWException( 'Malformed aliases file' );
1749
1750                                 // Merge all aliases in fallback chain
1751                                 $code = $this->getCode();
1752                                 do {
1753                                         if ( !isset($aliases[$code]) ) continue;
1754
1755                                         $aliases[$code] = $this->fixSpecialPageAliases( $aliases[$code] );
1756                                         /* Merge the aliases, THIS will break if there is special page name
1757                                         * which looks like a numerical key, thanks to PHP...
1758                                         * See the comments for wfArrayMerge in GlobalSettings.php. */
1759                                         $this->mExtendedSpecialPageAliases = array_merge_recursive(
1760                                                 $this->mExtendedSpecialPageAliases, $aliases[$code] );
1761
1762                                 } while ( $code = self::getFallbackFor( $code ) );
1763                         }
1764
1765                         wfRunHooks( 'LanguageGetSpecialPageAliases',
1766                                 array( &$this->mExtendedSpecialPageAliases, $this->getCode() ) );
1767                 }
1768
1769                 return $this->mExtendedSpecialPageAliases;
1770         }
1771
1772         /**
1773          * Function to fix special page aliases. Will convert the first letter to
1774          * upper case and spaces to underscores. Can be given a full aliases array,
1775          * in which case it will recursively fix all aliases.
1776          */
1777         public function fixSpecialPageAliases( $mixed ) {
1778                 // Work recursively until in string level
1779                 if ( is_array($mixed) ) {
1780                         $callback = array( $this, 'fixSpecialPageAliases' );
1781                         return array_map( $callback, $mixed );
1782                 }
1783                 return str_replace( ' ', '_', $this->ucfirst( $mixed ) );
1784         }
1785
1786         /**
1787          * Italic is unsuitable for some languages
1788          *
1789          * @param $text String: the text to be emphasized.
1790          * @return string
1791          */
1792         function emphasize( $text ) {
1793                 return "<em>$text</em>";
1794         }
1795
1796          /**
1797           * Normally we output all numbers in plain en_US style, that is
1798           * 293,291.235 for twohundredninetythreethousand-twohundredninetyone
1799           * point twohundredthirtyfive. However this is not sutable for all
1800           * languages, some such as Pakaran want ੨੯੩,੨੯੫.੨੩੫ and others such as
1801           * Icelandic just want to use commas instead of dots, and dots instead
1802           * of commas like "293.291,235".
1803           *
1804           * An example of this function being called:
1805           * <code>
1806           * wfMsg( 'message', $wgLang->formatNum( $num ) )
1807           * </code>
1808           *
1809           * See LanguageGu.php for the Gujarati implementation and
1810           * LanguageIs.php for the , => . and . => , implementation.
1811           *
1812           * @todo check if it's viable to use localeconv() for the decimal
1813           *       seperator thing.
1814           * @param $number Mixed: the string to be formatted, should be an integer
1815           *        or a floating point number.
1816           * @param $nocommafy Bool: set to true for special numbers like dates
1817           * @return string
1818           */
1819         function formatNum( $number, $nocommafy = false ) {
1820                 global $wgTranslateNumerals;
1821                 if (!$nocommafy) {
1822                         $number = $this->commafy($number);
1823                         $s = $this->separatorTransformTable();
1824                         if (!is_null($s)) { $number = strtr($number, $s); }
1825                 }
1826
1827                 if ($wgTranslateNumerals) {
1828                         $s = $this->digitTransformTable();
1829                         if (!is_null($s)) { $number = strtr($number, $s); }
1830                 }
1831
1832                 return $number;
1833         }
1834
1835         function parseFormattedNumber( $number ) {
1836                 $s = $this->digitTransformTable();
1837                 if (!is_null($s)) { $number = strtr($number, array_flip($s)); }
1838
1839                 $s = $this->separatorTransformTable();
1840                 if (!is_null($s)) { $number = strtr($number, array_flip($s)); }
1841
1842                 $number = strtr( $number, array (',' => '') );
1843                 return $number;
1844         }
1845
1846         /**
1847          * Adds commas to a given number
1848          *
1849          * @param $_ mixed
1850          * @return string
1851          */
1852         function commafy($_) {
1853                 return strrev((string)preg_replace('/(\d{3})(?=\d)(?!\d*\.)/','$1,',strrev($_)));
1854         }
1855
1856         function digitTransformTable() {
1857                 $this->load();
1858                 return $this->digitTransformTable;
1859         }
1860
1861         function separatorTransformTable() {
1862                 $this->load();
1863                 return $this->separatorTransformTable;
1864         }
1865
1866
1867         /**
1868          * For the credit list in includes/Credits.php (action=credits)
1869          *
1870          * @param $l Array
1871          * @return string
1872          */
1873         function listToText( $l ) {
1874                 $s = '';
1875                 $m = count($l) - 1;
1876                 for ($i = $m; $i >= 0; $i--) {
1877                         if ($i == $m) {
1878                                 $s = $l[$i];
1879                         } else if ($i == $m - 1) {
1880                                 $s = $l[$i] . ' ' . $this->getMessageFromDB( 'and' ) . ' ' . $s;
1881                         } else {
1882                                 $s = $l[$i] . ', ' . $s;
1883                         }
1884                 }
1885                 return $s;
1886         }
1887
1888         /**
1889          * Truncate a string to a specified length in bytes, appending an optional
1890          * string (e.g. for ellipses)
1891          *
1892          * The database offers limited byte lengths for some columns in the database;
1893          * multi-byte character sets mean we need to ensure that only whole characters
1894          * are included, otherwise broken characters can be passed to the user
1895          *
1896          * If $length is negative, the string will be truncated from the beginning
1897          *
1898          * @param $string String to truncate
1899          * @param $length Int: maximum length (excluding ellipses)
1900          * @param $ellipsis String to append to the truncated text
1901          * @return string
1902          */
1903         function truncate( $string, $length, $ellipsis = "" ) {
1904                 if( $length == 0 ) {
1905                         return $ellipsis;
1906                 }
1907                 if ( strlen( $string ) <= abs( $length ) ) {
1908                         return $string;
1909                 }
1910                 if( $length > 0 ) {
1911                         $string = substr( $string, 0, $length );
1912                         $char = ord( $string[strlen( $string ) - 1] );
1913                         $m = array();
1914                         if ($char >= 0xc0) {
1915                                 # We got the first byte only of a multibyte char; remove it.
1916                                 $string = substr( $string, 0, -1 );
1917                         } elseif( $char >= 0x80 &&
1918                                   preg_match( '/^(.*)(?:[\xe0-\xef][\x80-\xbf]|' .
1919                                               '[\xf0-\xf7][\x80-\xbf]{1,2})$/', $string, $m ) ) {
1920                             # We chopped in the middle of a character; remove it
1921                                 $string = $m[1];
1922                         }
1923                         return $string . $ellipsis;
1924                 } else {
1925                         $string = substr( $string, $length );
1926                         $char = ord( $string[0] );
1927                         if( $char >= 0x80 && $char < 0xc0 ) {
1928                                 # We chopped in the middle of a character; remove the whole thing
1929                                 $string = preg_replace( '/^[\x80-\xbf]+/', '', $string );
1930                         }
1931                         return $ellipsis . $string;
1932                 }
1933         }
1934
1935         /**
1936          * Grammatical transformations, needed for inflected languages
1937          * Invoked by putting {{grammar:case|word}} in a message
1938          *
1939          * @param $word string
1940          * @param $case string
1941          * @return string
1942          */
1943         function convertGrammar( $word, $case ) {
1944                 global $wgGrammarForms;
1945                 if ( isset($wgGrammarForms[$this->getCode()][$case][$word]) ) {
1946                         return $wgGrammarForms[$this->getCode()][$case][$word];
1947                 }
1948                 return $word;
1949         }
1950
1951         /**
1952          * Plural form transformations, needed for some languages.
1953          * For example, there are 3 form of plural in Russian and Polish,
1954          * depending on "count mod 10". See [[w:Plural]]
1955          * For English it is pretty simple.
1956          *
1957          * Invoked by putting {{plural:count|wordform1|wordform2}}
1958          * or {{plural:count|wordform1|wordform2|wordform3}}
1959          *
1960          * Example: {{plural:{{NUMBEROFARTICLES}}|article|articles}}
1961          *
1962          * @param $count Integer: non-localized number
1963          * @param $forms Array: different plural forms
1964          * @return string Correct form of plural for $count in this language
1965          */
1966         function convertPlural( $count, $forms ) {
1967                 if ( !count($forms) ) { return ''; }
1968                 $forms = $this->preConvertPlural( $forms, 2 );
1969
1970                 return ( abs($count) == 1 ) ? $forms[0] : $forms[1];
1971         }
1972
1973         /**
1974          * Checks that convertPlural was given an array and pads it to requested
1975          * amound of forms by copying the last one.
1976          *
1977          * @param $count Integer: How many forms should there be at least
1978          * @param $forms Array of forms given to convertPlural
1979          * @return array Padded array of forms or an exception if not an array
1980          */
1981         protected function preConvertPlural( /* Array */ $forms, $count ) {
1982                 while ( count($forms) < $count ) {
1983                         $forms[] = $forms[count($forms)-1];
1984                 }
1985                 return $forms;
1986         }
1987
1988         /**
1989          * For translaing of expiry times
1990          * @param $str String: the validated block time in English
1991          * @return Somehow translated block time
1992          * @see LanguageFi.php for example implementation
1993          */
1994         function translateBlockExpiry( $str ) {
1995
1996                 $scBlockExpiryOptions = $this->getMessageFromDB( 'ipboptions' );
1997
1998                 if ( $scBlockExpiryOptions == '-') {
1999                         return $str;
2000                 }
2001
2002                 foreach (explode(',', $scBlockExpiryOptions) as $option) {
2003                         if ( strpos($option, ":") === false )
2004                                 continue;
2005                         list($show, $value) = explode(":", $option);
2006                         if ( strcmp ( $str, $value) == 0 ) {
2007                                 return htmlspecialchars( trim( $show ) );
2008                         }
2009                 }
2010
2011                 return $str;
2012         }
2013
2014         /**
2015          * languages like Chinese need to be segmented in order for the diff
2016          * to be of any use
2017          *
2018          * @param $text String
2019          * @return String
2020          */
2021         function segmentForDiff( $text ) {
2022                 return $text;
2023         }
2024
2025         /**
2026          * and unsegment to show the result
2027          *
2028          * @param $text String
2029          * @return String
2030          */
2031         function unsegmentForDiff( $text ) {
2032                 return $text;
2033         }
2034
2035         # convert text to different variants of a language.
2036         function convert( $text, $isTitle = false) {
2037                 return $this->mConverter->convert($text, $isTitle);
2038         }
2039
2040         # Convert text from within Parser
2041         function parserConvert( $text, &$parser ) {
2042                 return $this->mConverter->parserConvert( $text, $parser );
2043         }
2044
2045         # Check if this is a language with variants
2046         function hasVariants(){
2047                 return sizeof($this->getVariants())>1;
2048         }
2049
2050         # Put custom tags (e.g. -{ }-) around math to prevent conversion
2051         function armourMath($text){
2052                 return $this->mConverter->armourMath($text);
2053         }
2054
2055
2056         /**
2057          * Perform output conversion on a string, and encode for safe HTML output.
2058          * @param $text String
2059          * @param $isTitle Bool -- wtf?
2060          * @return string
2061          * @todo this should get integrated somewhere sane
2062          */
2063         function convertHtml( $text, $isTitle = false ) {
2064                 return htmlspecialchars( $this->convert( $text, $isTitle ) );
2065         }
2066
2067         function convertCategoryKey( $key ) {
2068                 return $this->mConverter->convertCategoryKey( $key );
2069         }
2070
2071         /**
2072          * get the list of variants supported by this langauge
2073          * see sample implementation in LanguageZh.php
2074          *
2075          * @return array an array of language codes
2076          */
2077         function getVariants() {
2078                 return $this->mConverter->getVariants();
2079         }
2080
2081
2082         function getPreferredVariant( $fromUser = true ) {
2083                 return $this->mConverter->getPreferredVariant( $fromUser );
2084         }
2085
2086         /**
2087          * if a language supports multiple variants, it is
2088          * possible that non-existing link in one variant
2089          * actually exists in another variant. this function
2090          * tries to find it. See e.g. LanguageZh.php
2091          *
2092          * @param $link String: the name of the link
2093          * @param $nt Mixed: the title object of the link
2094          * @return null the input parameters may be modified upon return
2095          */
2096         function findVariantLink( &$link, &$nt ) {
2097                 $this->mConverter->findVariantLink($link, $nt);
2098         }
2099
2100         /**
2101          * If a language supports multiple variants, converts text
2102          * into an array of all possible variants of the text:
2103          *  'variant' => text in that variant
2104          */
2105
2106         function convertLinkToAllVariants($text){
2107                 return $this->mConverter->convertLinkToAllVariants($text);
2108         }
2109
2110
2111         /**
2112          * returns language specific options used by User::getPageRenderHash()
2113          * for example, the preferred language variant
2114          *
2115          * @return string
2116          */
2117         function getExtraHashOptions() {
2118                 return $this->mConverter->getExtraHashOptions();
2119         }
2120
2121         /**
2122          * for languages that support multiple variants, the title of an
2123          * article may be displayed differently in different variants. this
2124          * function returns the apporiate title defined in the body of the article.
2125          *
2126          * @return string
2127          */
2128         function getParsedTitle() {
2129                 return $this->mConverter->getParsedTitle();
2130         }
2131
2132         /**
2133          * Enclose a string with the "no conversion" tag. This is used by
2134          * various functions in the Parser
2135          *
2136          * @param $text String: text to be tagged for no conversion
2137          * @param $noParse
2138          * @return string the tagged text
2139          */
2140         function markNoConversion( $text, $noParse=false ) {
2141                 return $this->mConverter->markNoConversion( $text, $noParse );
2142         }
2143
2144         /**
2145          * A regular expression to match legal word-trailing characters
2146          * which should be merged onto a link of the form [[foo]]bar.
2147          *
2148          * @return string
2149          */
2150         function linkTrail() {
2151                 $this->load();
2152                 return $this->linkTrail;
2153         }
2154
2155         function getLangObj() {
2156                 return $this;
2157         }
2158
2159         /**
2160          * Get the RFC 3066 code for this language object
2161          */
2162         function getCode() {
2163                 return $this->mCode;
2164         }
2165
2166         function setCode( $code ) {
2167                 $this->mCode = $code;
2168         }
2169
2170         static function getFileName( $prefix = 'Language', $code, $suffix = '.php' ) {
2171                 return $prefix . str_replace( '-', '_', ucfirst( $code ) ) . $suffix;
2172         }
2173
2174         static function getMessagesFileName( $code ) {
2175                 global $IP;
2176                 return self::getFileName( "$IP/languages/messages/Messages", $code, '.php' );
2177         }
2178
2179         static function getClassFileName( $code ) {
2180                 global $IP;
2181                 return self::getFileName( "$IP/languages/classes/Language", $code, '.php' );
2182         }
2183
2184         static function getLocalisationArray( $code, $disableCache = false ) {
2185                 self::loadLocalisation( $code, $disableCache );
2186                 return self::$mLocalisationCache[$code];
2187         }
2188
2189         /**
2190          * Load localisation data for a given code into the static cache
2191          *
2192          * @return array Dependencies, map of filenames to mtimes
2193          */
2194         static function loadLocalisation( $code, $disableCache = false ) {
2195                 static $recursionGuard = array();
2196                 global $wgMemc, $wgCheckSerialized;
2197
2198                 if ( !$code ) {
2199                         throw new MWException( "Invalid language code requested" );
2200                 }
2201
2202                 if ( !$disableCache ) {
2203                         # Try the per-process cache
2204                         if ( isset( self::$mLocalisationCache[$code] ) ) {
2205                                 return self::$mLocalisationCache[$code]['deps'];
2206                         }
2207
2208                         wfProfileIn( __METHOD__ );
2209
2210                         # Try the serialized directory
2211                         $cache = wfGetPrecompiledData( self::getFileName( "Messages", $code, '.ser' ) );
2212                         if ( $cache ) {
2213                                 if ( $wgCheckSerialized && self::isLocalisationOutOfDate( $cache ) ) {
2214                                         $cache = false;
2215                                         wfDebug( "Language::loadLocalisation(): precompiled data file for $code is out of date\n" );
2216                                 } else {
2217                                         self::$mLocalisationCache[$code] = $cache;
2218                                         wfDebug( "Language::loadLocalisation(): got localisation for $code from precompiled data file\n" );
2219                                         wfProfileOut( __METHOD__ );
2220                                         return self::$mLocalisationCache[$code]['deps'];
2221                                 }
2222                         }
2223
2224                         # Try the global cache
2225                         $memcKey = wfMemcKey('localisation', $code );
2226                         $fbMemcKey = wfMemcKey('fallback', $cache['fallback'] );
2227                         $cache = $wgMemc->get( $memcKey );
2228                         if ( $cache ) {
2229                                 if ( self::isLocalisationOutOfDate( $cache ) ) {
2230                                         $wgMemc->delete( $memcKey );
2231                                         $wgMemc->delete( $fbMemcKey );
2232                                         $cache = false;
2233                                         wfDebug( "Language::loadLocalisation(): localisation cache for $code had expired\n" );
2234                                 } else {
2235                                         self::$mLocalisationCache[$code] = $cache;
2236                                         wfDebug( "Language::loadLocalisation(): got localisation for $code from cache\n" );
2237                                         wfProfileOut( __METHOD__ );
2238                                         return $cache['deps'];
2239                                 }
2240                         }
2241                 } else {
2242                         wfProfileIn( __METHOD__ );
2243                 }
2244
2245                 # Default fallback, may be overridden when the messages file is included
2246                 if ( $code != 'en' ) {
2247                         $fallback = 'en';
2248                 } else {
2249                         $fallback = false;
2250                 }
2251
2252                 # Load the primary localisation from the source file
2253                 $filename = self::getMessagesFileName( $code );
2254                 if ( !file_exists( $filename ) ) {
2255                         wfDebug( "Language::loadLocalisation(): no localisation file for $code, using implicit fallback to en\n" );
2256                         $cache = compact( self::$mLocalisationKeys ); // Set correct fallback
2257                         $deps = array();
2258                 } else {
2259                         $deps = array( $filename => filemtime( $filename ) );
2260                         require( $filename );
2261                         $cache = compact( self::$mLocalisationKeys );
2262                         wfDebug( "Language::loadLocalisation(): got localisation for $code from source\n" );
2263                 }
2264
2265                 if ( !empty( $fallback ) ) {
2266                         # Load the fallback localisation, with a circular reference guard
2267                         if ( isset( $recursionGuard[$code] ) ) {
2268                                 throw new MWException( "Error: Circular fallback reference in language code $code" );
2269                         }
2270                         $recursionGuard[$code] = true;
2271                         $newDeps = self::loadLocalisation( $fallback, $disableCache );
2272                         unset( $recursionGuard[$code] );
2273
2274                         $secondary = self::$mLocalisationCache[$fallback];
2275                         $deps = array_merge( $deps, $newDeps );
2276
2277                         # Merge the fallback localisation with the current localisation
2278                         foreach ( self::$mLocalisationKeys as $key ) {
2279                                 if ( isset( $cache[$key] ) ) {
2280                                         if ( isset( $secondary[$key] ) ) {
2281                                                 if ( in_array( $key, self::$mMergeableMapKeys ) ) {
2282                                                         $cache[$key] = $cache[$key] + $secondary[$key];
2283                                                 } elseif ( in_array( $key, self::$mMergeableListKeys ) ) {
2284                                                         $cache[$key] = array_merge( $secondary[$key], $cache[$key] );
2285                                                 } elseif ( in_array( $key, self::$mMergeableAliasListKeys ) ) {
2286                                                         $cache[$key] = array_merge_recursive( $cache[$key], $secondary[$key] );
2287                                                 }
2288                                         }
2289                                 } else {
2290                                         $cache[$key] = $secondary[$key];
2291                                 }
2292                         }
2293
2294                         # Merge bookstore lists if requested
2295                         if ( !empty( $cache['bookstoreList']['inherit'] ) ) {
2296                                 $cache['bookstoreList'] = array_merge( $cache['bookstoreList'], $secondary['bookstoreList'] );
2297                         }
2298                         if ( isset( $cache['bookstoreList']['inherit'] ) ) {
2299                                 unset( $cache['bookstoreList']['inherit'] );
2300                         }
2301                 }
2302
2303                 # Add dependencies to the cache entry
2304                 $cache['deps'] = $deps;
2305
2306                 # Replace spaces with underscores in namespace names
2307                 $cache['namespaceNames'] = str_replace( ' ', '_', $cache['namespaceNames'] );
2308
2309                 # And do the same for specialpage aliases. $page is an array.
2310                 foreach ( $cache['specialPageAliases'] as &$page ) {
2311                         $page = str_replace( ' ', '_', $page );
2312                 }
2313                 # Decouple the reference to prevent accidental damage
2314                 unset($page);
2315
2316                 # Save to both caches
2317                 self::$mLocalisationCache[$code] = $cache;
2318                 if ( !$disableCache ) {
2319                         $wgMemc->set( $memcKey, $cache );
2320                         $wgMemc->set( $fbMemcKey, (string) $cache['fallback'] );
2321                 }
2322
2323                 wfProfileOut( __METHOD__ );
2324                 return $deps;
2325         }
2326
2327         /**
2328          * Test if a given localisation cache is out of date with respect to the
2329          * source Messages files. This is done automatically for the global cache
2330          * in $wgMemc, but is only done on certain occasions for the serialized
2331          * data file.
2332          *
2333          * @param $cache mixed Either a language code or a cache array
2334          */
2335         static function isLocalisationOutOfDate( $cache ) {
2336                 if ( !is_array( $cache ) ) {
2337                         self::loadLocalisation( $cache );
2338                         $cache = self::$mLocalisationCache[$cache];
2339                 }
2340                 $expired = false;
2341                 foreach ( $cache['deps'] as $file => $mtime ) {
2342                         if ( !file_exists( $file ) || filemtime( $file ) > $mtime ) {
2343                                 $expired = true;
2344                                 break;
2345                         }
2346                 }
2347                 return $expired;
2348         }
2349
2350         /**
2351          * Get the fallback for a given language
2352          */
2353         static function getFallbackFor( $code ) {
2354                 // Shortcut
2355                 if ( $code === 'en' ) return false;
2356
2357                 // Local cache
2358                 static $cache = array();
2359                 // Quick return
2360                 if ( isset($cache[$code]) ) return $cache[$code];
2361
2362                 // Try memcache
2363                 global $wgMemc;
2364                 $memcKey = wfMemcKey( 'fallback', $code );
2365                 $fbcode = $wgMemc->get( $memcKey );
2366
2367                 if ( is_string($fbcode) ) {
2368                         // False is stored as a string to detect failures in memcache properly
2369                         if ( $fbcode === '' ) $fbcode = false;
2370
2371                         // Update local cache and return
2372                         $cache[$code] = $fbcode;
2373                         return $fbcode;
2374                 }
2375
2376                 // Nothing in caches, load and and update both caches
2377                 self::loadLocalisation( $code );
2378                 $fbcode = self::$mLocalisationCache[$code]['fallback'];
2379
2380                 $cache[$code] = $fbcode;
2381                 $wgMemc->set( $memcKey, (string) $fbcode );
2382
2383                 return $fbcode;
2384         }
2385
2386         /**
2387          * Get all messages for a given language
2388          */
2389         static function getMessagesFor( $code ) {
2390                 self::loadLocalisation( $code );
2391                 return self::$mLocalisationCache[$code]['messages'];
2392         }
2393
2394         /**
2395          * Get a message for a given language
2396          */
2397         static function getMessageFor( $key, $code ) {
2398                 self::loadLocalisation( $code );
2399                 return isset( self::$mLocalisationCache[$code]['messages'][$key] ) ? self::$mLocalisationCache[$code]['messages'][$key] : null;
2400         }
2401
2402         /**
2403          * Load localisation data for this object
2404          */
2405         function load() {
2406                 if ( !$this->mLoaded ) {
2407                         self::loadLocalisation( $this->getCode() );
2408                         $cache =& self::$mLocalisationCache[$this->getCode()];
2409                         foreach ( self::$mLocalisationKeys as $key ) {
2410                                 $this->$key = $cache[$key];
2411                         }
2412                         $this->mLoaded = true;
2413
2414                         $this->fixUpSettings();
2415                 }
2416         }
2417
2418         /**
2419          * Do any necessary post-cache-load settings adjustment
2420          */
2421         function fixUpSettings() {
2422                 global $wgExtraNamespaces, $wgMetaNamespace, $wgMetaNamespaceTalk,
2423                         $wgNamespaceAliases, $wgAmericanDates;
2424                 wfProfileIn( __METHOD__ );
2425                 if ( $wgExtraNamespaces ) {
2426                         $this->namespaceNames = $wgExtraNamespaces + $this->namespaceNames;
2427                 }
2428
2429                 $this->namespaceNames[NS_PROJECT] = $wgMetaNamespace;
2430                 if ( $wgMetaNamespaceTalk ) {
2431                         $this->namespaceNames[NS_PROJECT_TALK] = $wgMetaNamespaceTalk;
2432                 } else {
2433                         $talk = $this->namespaceNames[NS_PROJECT_TALK];
2434                         $talk = str_replace( '$1', $wgMetaNamespace, $talk );
2435
2436                         # Allow grammar transformations
2437                         # Allowing full message-style parsing would make simple requests
2438                         # such as action=raw much more expensive than they need to be.
2439                         # This will hopefully cover most cases.
2440                         $talk = preg_replace_callback( '/{{grammar:(.*?)\|(.*?)}}/i',
2441                                 array( &$this, 'replaceGrammarInNamespace' ), $talk );
2442                         $talk = str_replace( ' ', '_', $talk );
2443                         $this->namespaceNames[NS_PROJECT_TALK] = $talk;
2444                 }
2445
2446                 # The above mixing may leave namespaces out of canonical order.
2447                 # Re-order by namespace ID number...
2448                 ksort( $this->namespaceNames );
2449
2450                 # Put namespace names and aliases into a hashtable.
2451                 # If this is too slow, then we should arrange it so that it is done
2452                 # before caching. The catch is that at pre-cache time, the above
2453                 # class-specific fixup hasn't been done.
2454                 $this->mNamespaceIds = array();
2455                 foreach ( $this->namespaceNames as $index => $name ) {
2456                         $this->mNamespaceIds[$this->lc($name)] = $index;
2457                 }
2458                 if ( $this->namespaceAliases ) {
2459                         foreach ( $this->namespaceAliases as $name => $index ) {
2460                                 $this->mNamespaceIds[$this->lc($name)] = $index;
2461                         }
2462                 }
2463                 if ( $wgNamespaceAliases ) {
2464                         foreach ( $wgNamespaceAliases as $name => $index ) {
2465                                 $this->mNamespaceIds[$this->lc($name)] = $index;
2466                         }
2467                 }
2468
2469                 if ( $this->defaultDateFormat == 'dmy or mdy' ) {
2470                         $this->defaultDateFormat = $wgAmericanDates ? 'mdy' : 'dmy';
2471                 }
2472                 wfProfileOut( __METHOD__ );
2473         }
2474
2475         function replaceGrammarInNamespace( $m ) {
2476                 return $this->convertGrammar( trim( $m[2] ), trim( $m[1] ) );
2477         }
2478
2479         static function getCaseMaps() {
2480                 static $wikiUpperChars, $wikiLowerChars;
2481                 if ( isset( $wikiUpperChars ) ) {
2482                         return array( $wikiUpperChars, $wikiLowerChars );
2483                 }
2484
2485                 wfProfileIn( __METHOD__ );
2486                 $arr = wfGetPrecompiledData( 'Utf8Case.ser' );
2487                 if ( $arr === false ) {
2488                         throw new MWException(
2489                                 "Utf8Case.ser is missing, please run \"make\" in the serialized directory\n" );
2490                 }
2491                 extract( $arr );
2492                 wfProfileOut( __METHOD__ );
2493                 return array( $wikiUpperChars, $wikiLowerChars );
2494         }
2495
2496         function formatTimePeriod( $seconds ) {
2497                 if ( $seconds < 10 ) {
2498                         return $this->formatNum( sprintf( "%.1f", $seconds ) ) . wfMsg( 'seconds-abbrev' );
2499                 } elseif ( $seconds < 60 ) {
2500                         return $this->formatNum( round( $seconds ) ) . wfMsg( 'seconds-abbrev' );
2501                 } elseif ( $seconds < 3600 ) {
2502                         return $this->formatNum( floor( $seconds / 60 ) ) . wfMsg( 'minutes-abbrev' ) .
2503                                 $this->formatNum( round( fmod( $seconds, 60 ) ) ) . wfMsg( 'seconds-abbrev' );
2504                 } else {
2505                         $hours = floor( $seconds / 3600 );
2506                         $minutes = floor( ( $seconds - $hours * 3600 ) / 60 );
2507                         $secondsPart = round( $seconds - $hours * 3600 - $minutes * 60 );
2508                         return $this->formatNum( $hours ) . wfMsg( 'hours-abbrev' ) .
2509                                 $this->formatNum( $minutes ) . wfMsg( 'minutes-abbrev' ) .
2510                                 $this->formatNum( $secondsPart ) . wfMsg( 'seconds-abbrev' );
2511                 }
2512         }
2513
2514         function formatBitrate( $bps ) {
2515                 $units = array( 'bps', 'kbps', 'Mbps', 'Gbps' );
2516                 if ( $bps <= 0 ) {
2517                         return $this->formatNum( $bps ) . $units[0];
2518                 }
2519                 $unitIndex = floor( log10( $bps ) / 3 );
2520                 $mantissa = $bps / pow( 1000, $unitIndex );
2521                 if ( $mantissa < 10 ) {
2522                         $mantissa = round( $mantissa, 1 );
2523                 } else {
2524                         $mantissa = round( $mantissa );
2525                 }
2526                 return $this->formatNum( $mantissa ) . $units[$unitIndex];
2527         }
2528
2529         /**
2530          * Format a size in bytes for output, using an appropriate
2531          * unit (B, KB, MB or GB) according to the magnitude in question
2532          *
2533          * @param $size Size to format
2534          * @return string Plain text (not HTML)
2535          */
2536         function formatSize( $size ) {
2537                 // For small sizes no decimal places necessary
2538                 $round = 0;
2539                 if( $size > 1024 ) {
2540                         $size = $size / 1024;
2541                         if( $size > 1024 ) {
2542                                 $size = $size / 1024;
2543                                 // For MB and bigger two decimal places are smarter
2544                                 $round = 2;
2545                                 if( $size > 1024 ) {
2546                                         $size = $size / 1024;
2547                                         $msg = 'size-gigabytes';
2548                                 } else {
2549                                         $msg = 'size-megabytes';
2550                                 }
2551                         } else {
2552                                 $msg = 'size-kilobytes';
2553                         }
2554                 } else {
2555                         $msg = 'size-bytes';
2556                 }
2557                 $size = round( $size, $round );
2558                 $text = $this->getMessageFromDB( $msg );
2559                 return str_replace( '$1', $this->formatNum( $size ), $text );
2560         }
2561 }