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, $forTemplate = false) {}
  43         function getExtraHashOptions() {return '';}
  44         function getParsedTitle() {return '';}
  45         function markNoConversion($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          * The months are counted from Tishrei = 1. In a leap year, Adar I is 13
 916          * and Adar II is 14. In a non-leap year, Adar is 6.
 917          */
 918         private static function tsToHebrew( $ts ) {
 919                 # Parse date
 920                 $year = substr( $ts, 0, 4 );
 921                 $month = substr( $ts, 4, 2 );
 922                 $day = substr( $ts, 6, 2 );
 923
 924                 # Calculate Hebrew year
 925                 $hebrewYear = $year + 3760;
 926
 927                 # Month number when September = 1, August = 12
 928                 $month += 4;
 929                 if( $month > 12 ) {
 930                         # Next year
 931                         $month -= 12;
 932                         $year++;
 933                         $hebrewYear++;
 934                 }
 935
 936                 # Calculate day of year from 1 September
 937                 $dayOfYear = $day;
 938                 for( $i = 1; $i < $month; $i++ ) {
 939                         if( $i == 6 ) {
 940                                 # February
 941                                 $dayOfYear += 28;
 942                                 # Check if the year is leap
 943                                 if( $year % 400 == 0 || ( $year % 4 == 0 && $year % 100 > 0 ) ) {
 944                                         $dayOfYear++;
 945                                 }
 946                         } elseif( $i == 8 || $i == 10 || $i == 1 || $i == 3 ) {
 947                                 $dayOfYear += 30;
 948                         } else {
 949                                 $dayOfYear += 31;
 950                         }
 951                 }
 952
 953                 # Calculate the start of the Hebrew year
 954                 $start = self::hebrewYearStart( $hebrewYear );
 955
 956                 # Calculate next year's start
 957                 if( $dayOfYear <= $start ) {
 958                         # Day is before the start of the year - it is the previous year
 959                         # Next year's start
 960                         $nextStart = $start;
 961                         # Previous year
 962                         $year--;
 963                         $hebrewYear--;
 964                         # Add days since previous year's 1 September
 965                         $dayOfYear += 365;
 966                         if( ( $year % 400 == 0 ) || ( $year % 100 != 0 && $year % 4 == 0 ) ) {
 967                                 # Leap year
 968                                 $dayOfYear++;
 969                         }
 970                         # Start of the new (previous) year
 971                         $start = self::hebrewYearStart( $hebrewYear );
 972                 } else {
 973                         # Next year's start
 974                         $nextStart = self::hebrewYearStart( $hebrewYear + 1 );
 975                 }
 976
 977                 # Calculate Hebrew day of year
 978                 $hebrewDayOfYear = $dayOfYear - $start;
 979
 980                 # Difference between year's days
 981                 $diff = $nextStart - $start;
 982                 # Add 12 (or 13 for leap years) days to ignore the difference between
 983                 # Hebrew and Gregorian year (353 at least vs. 365/6) - now the
 984                 # difference is only about the year type
 985                 if( ( $year % 400 == 0 ) || ( $year % 100 != 0 && $year % 4 == 0 ) ) {
 986                         $diff += 13;
 987                 } else {
 988                         $diff += 12;
 989                 }
 990
 991                 # Check the year pattern, and is leap year
 992                 # 0 means an incomplete year, 1 means a regular year, 2 means a complete year
 993                 # This is mod 30, to work on both leap years (which add 30 days of Adar I)
 994                 # and non-leap years
 995                 $yearPattern = $diff % 30;
 996                 # Check if leap year
 997                 $isLeap = $diff >= 30;
 998
 999                 # Calculate day in the month from number of day in the Hebrew year
1000                 # Don't check Adar - if the day is not in Adar, we will stop before;
1001                 # if it is in Adar, we will use it to check if it is Adar I or Adar II
1002                 $hebrewDay = $hebrewDayOfYear;
1003                 $hebrewMonth = 1;
1004                 $days = 0;
1005                 while( $hebrewMonth <= 12 ) {
1006                         # Calculate days in this month
1007                         if( $isLeap && $hebrewMonth == 6 ) {
1008                                 # Adar in a leap year
1009                                 if( $isLeap ) {
1010                                         # Leap year - has Adar I, with 30 days, and Adar II, with 29 days
1011                                         $days = 30;
1012                                         if( $hebrewDay <= $days ) {
1013                                                 # Day in Adar I
1014                                                 $hebrewMonth = 13;
1015                                         } else {
1016                                                 # Subtract the days of Adar I
1017                                                 $hebrewDay -= $days;
1018                                                 # Try Adar II
1019                                                 $days = 29;
1020                                                 if( $hebrewDay <= $days ) {
1021                                                         # Day in Adar II
1022                                                         $hebrewMonth = 14;
1023                                                 }
1024                                         }
1025                                 }
1026                         } elseif( $hebrewMonth == 2 && $yearPattern == 2 ) {
1027                                 # Cheshvan in a complete year (otherwise as the rule below)
1028                                 $days = 30;
1029                         } elseif( $hebrewMonth == 3 && $yearPattern == 0 ) {
1030                                 # Kislev in an incomplete year (otherwise as the rule below)
1031                                 $days = 29;
1032                         } else {
1033                                 # Odd months have 30 days, even have 29
1034                                 $days = 30 - ( $hebrewMonth - 1 ) % 2;
1035                         }
1036                         if( $hebrewDay <= $days ) {
1037                                 # In the current month
1038                                 break;
1039                         } else {
1040                                 # Subtract the days of the current month
1041                                 $hebrewDay -= $days;
1042                                 # Try in the next month
1043                                 $hebrewMonth++;
1044                         }
1045                 }
1046
1047                 return array( $hebrewYear, $hebrewMonth, $hebrewDay, $days );
1048         }
1049
1050         /**
1051          * This calculates the Hebrew year start, as days since 1 September.
1052          * Based on Carl Friedrich Gauss algorithm for finding Easter date.
1053          * Used for Hebrew date.
1054          */
1055         private static function hebrewYearStart( $year ) {
1056                 $a = intval( ( 12 * ( $year - 1 ) + 17 ) % 19 );
1057                 $b = intval( ( $year - 1 ) % 4 );
1058                 $m = 32.044093161144 + 1.5542417966212 * $a +  $b / 4.0 - 0.0031777940220923 * ( $year - 1 );
1059                 if( $m < 0 ) {
1060                         $m--;
1061                 }
1062                 $Mar = intval( $m );
1063                 if( $m < 0 ) {
1064                         $m++;
1065                 }
1066                 $m -= $Mar;
1067
1068                 $c = intval( ( $Mar + 3 * ( $year - 1 ) + 5 * $b + 5 ) % 7);
1069                 if( $c == 0 && $a > 11 && $m >= 0.89772376543210 ) {
1070                         $Mar++;
1071                 } else if( $c == 1 && $a > 6 && $m >= 0.63287037037037 ) {
1072                         $Mar += 2;
1073                 } else if( $c == 2 || $c == 4 || $c == 6 ) {
1074                         $Mar++;
1075                 }
1076
1077                 $Mar += intval( ( $year - 3761 ) / 100 ) - intval( ( $year - 3761 ) / 400 ) - 24;
1078                 return $Mar;
1079         }
1080
1081         /**
1082          * Algorithm to convert Gregorian dates to Thai solar dates.
1083          *
1084          * Link: http://en.wikipedia.org/wiki/Thai_solar_calendar
1085          *
1086          * @param $ts String: 14-character timestamp
1087          * @return array converted year, month, day
1088          */
1089         private static function tsToThai( $ts ) {
1090                 $gy = substr( $ts, 0, 4 );
1091                 $gm = substr( $ts, 4, 2 );
1092                 $gd = substr( $ts, 6, 2 );
1093
1094                 # Add 543 years to the Gregorian calendar
1095                 # Months and days are identical
1096                 $gy_thai = $gy + 543;
1097
1098                 return array( $gy_thai, $gm, $gd );
1099         }
1100
1101
1102         /**
1103          * Roman number formatting up to 3000
1104          */
1105         static function romanNumeral( $num ) {
1106                 static $table = array(
1107                         array( '', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX', 'X' ),
1108                         array( '', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC', 'C' ),
1109                         array( '', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM', 'M' ),
1110                         array( '', 'M', 'MM', 'MMM' )
1111                 );
1112
1113                 $num = intval( $num );
1114                 if ( $num > 3000 || $num <= 0 ) {
1115                         return $num;
1116                 }
1117
1118                 $s = '';
1119                 for ( $pow10 = 1000, $i = 3; $i >= 0; $pow10 /= 10, $i-- ) {
1120                         if ( $num >= $pow10 ) {
1121                                 $s .= $table[$i][floor($num / $pow10)];
1122                         }
1123                         $num = $num % $pow10;
1124                 }
1125                 return $s;
1126         }
1127
1128         /**
1129          * Hebrew Gematria number formatting up to 9999
1130          */
1131         static function hebrewNumeral( $num ) {
1132                 static $table = array(
1133                         array( '', 'א', 'ב', 'ג', 'ד', 'ה', 'ו', 'ז', 'ח', 'ט', 'י' ),
1134                         array( '', 'י', 'כ', 'ל', 'מ', 'נ', 'ס', 'ע', 'פ', 'צ', 'ק' ),
1135                         array( '', 'ק', 'ר', 'ש', 'ת', 'תק', 'תר', 'תש', 'תת', 'תתק', 'תתר' ),
1136                         array( '', 'א', 'ב', 'ג', 'ד', 'ה', 'ו', 'ז', 'ח', 'ט', 'י' )
1137                 );
1138
1139                 $num = intval( $num );
1140                 if ( $num > 9999 || $num <= 0 ) {
1141                         return $num;
1142                 }
1143
1144                 $s = '';
1145                 for ( $pow10 = 1000, $i = 3; $i >= 0; $pow10 /= 10, $i-- ) {
1146                         if ( $num >= $pow10 ) {
1147                                 if ( $num == 15 || $num == 16 ) {
1148                                         $s .= $table[0][9] . $table[0][$num - 9];
1149                                         $num = 0;
1150                                 } else {
1151                                         $s .= $table[$i][intval( ( $num / $pow10 ) )];
1152                                         if( $pow10 == 1000 ) {
1153                                                 $s .= "'";
1154                                         }
1155                                 }
1156                         }
1157                         $num = $num % $pow10;
1158                 }
1159                 if( strlen( $s ) == 2 ) {
1160                         $str = $s . "'";
1161                 } else  {
1162                         $str = substr( $s, 0, strlen( $s ) - 2 ) . '"';
1163                         $str .= substr( $s, strlen( $s ) - 2, 2 );
1164                 }
1165                 $start = substr( $str, 0, strlen( $str ) - 2 );
1166                 $end = substr( $str, strlen( $str ) - 2 );
1167                 switch( $end ) {
1168                         case 'כ':
1169                                 $str = $start . 'ך';
1170                                 break;
1171                         case 'מ':
1172                                 $str = $start . 'ם';
1173                                 break;
1174                         case 'נ':
1175                                 $str = $start . 'ן';
1176                                 break;
1177                         case 'פ':
1178                                 $str = $start . 'ף';
1179                                 break;
1180                         case 'צ':
1181                                 $str = $start . 'ץ';
1182                                 break;
1183                 }
1184                 return $str;
1185         }
1186
1187         /**
1188          * This is meant to be used by time(), date(), and timeanddate() to get
1189          * the date preference they're supposed to use, it should be used in
1190          * all children.
1191          *
1192          *<code>
1193          * function timeanddate([...], $format = true) {
1194          *      $datePreference = $this->dateFormat($format);
1195          * [...]
1196          * }
1197          *</code>
1198          *
1199          * @param $usePrefs Mixed: if true, the user's preference is used
1200          *                         if false, the site/language default is used
1201          *                         if int/string, assumed to be a format.
1202          * @return string
1203          */
1204         function dateFormat( $usePrefs = true ) {
1205                 global $wgUser;
1206
1207                 if( is_bool( $usePrefs ) ) {
1208                         if( $usePrefs ) {
1209                                 $datePreference = $wgUser->getDatePreference();
1210                         } else {
1211                                 $options = User::getDefaultOptions();
1212                                 $datePreference = (string)$options['date'];
1213                         }
1214                 } else {
1215                         $datePreference = (string)$usePrefs;
1216                 }
1217
1218                 // return int
1219                 if( $datePreference == '' ) {
1220                         return 'default';
1221                 }
1222
1223                 return $datePreference;
1224         }
1225
1226         /**
1227          * @param $ts Mixed: the time format which needs to be turned into a
1228          *            date('YmdHis') format with wfTimestamp(TS_MW,$ts)
1229          * @param $adj Bool: whether to adjust the time output according to the
1230          *             user configured offset ($timecorrection)
1231          * @param $format Mixed: true to use user's date format preference
1232          * @param $timecorrection String: the time offset as returned by
1233          *                        validateTimeZone() in Special:Preferences
1234          * @return string
1235          */
1236         function date( $ts, $adj = false, $format = true, $timecorrection = false ) {
1237                 $this->load();
1238                 if ( $adj ) {
1239                         $ts = $this->userAdjust( $ts, $timecorrection );
1240                 }
1241
1242                 $pref = $this->dateFormat( $format );
1243                 if( $pref == 'default' || !isset( $this->dateFormats["$pref date"] ) ) {
1244                         $pref = $this->defaultDateFormat;
1245                 }
1246                 return $this->sprintfDate( $this->dateFormats["$pref date"], $ts );
1247         }
1248
1249         /**
1250          * @param $ts Mixed: the time format which needs to be turned into a
1251          *            date('YmdHis') format with wfTimestamp(TS_MW,$ts)
1252          * @param $adj Bool: whether to adjust the time output according to the
1253          *             user configured offset ($timecorrection)
1254          * @param $format Mixed: true to use user's date format preference
1255          * @param $timecorrection String: the time offset as returned by
1256          *                        validateTimeZone() in Special:Preferences
1257          * @return string
1258          */
1259         function time( $ts, $adj = false, $format = true, $timecorrection = false ) {
1260                 $this->load();
1261                 if ( $adj ) {
1262                         $ts = $this->userAdjust( $ts, $timecorrection );
1263                 }
1264
1265                 $pref = $this->dateFormat( $format );
1266                 if( $pref == 'default' || !isset( $this->dateFormats["$pref time"] ) ) {
1267                         $pref = $this->defaultDateFormat;
1268                 }
1269                 return $this->sprintfDate( $this->dateFormats["$pref time"], $ts );
1270         }
1271
1272         /**
1273          * @param $ts Mixed: the time format which needs to be turned into a
1274          *            date('YmdHis') format with wfTimestamp(TS_MW,$ts)
1275          * @param $adj Bool: whether to adjust the time output according to the
1276          *             user configured offset ($timecorrection)
1277          * @param $format Mixed: what format to return, if it's false output the
1278          *                default one (default true)
1279          * @param $timecorrection String: the time offset as returned by
1280          *                        validateTimeZone() in Special:Preferences
1281          * @return string
1282          */
1283         function timeanddate( $ts, $adj = false, $format = true, $timecorrection = false) {
1284                 $this->load();
1285
1286                 $ts = wfTimestamp( TS_MW, $ts );
1287
1288                 if ( $adj ) {
1289                         $ts = $this->userAdjust( $ts, $timecorrection );
1290                 }
1291
1292                 $pref = $this->dateFormat( $format );
1293                 if( $pref == 'default' || !isset( $this->dateFormats["$pref both"] ) ) {
1294                         $pref = $this->defaultDateFormat;
1295                 }
1296
1297                 return $this->sprintfDate( $this->dateFormats["$pref both"], $ts );
1298         }
1299
1300         function getMessage( $key ) {
1301                 $this->load();
1302                 return isset( $this->messages[$key] ) ? $this->messages[$key] : null;
1303         }
1304
1305         function getAllMessages() {
1306                 $this->load();
1307                 return $this->messages;
1308         }
1309
1310         function iconv( $in, $out, $string ) {
1311                 # For most languages, this is a wrapper for iconv
1312                 return iconv( $in, $out . '//IGNORE', $string );
1313         }
1314
1315         // callback functions for uc(), lc(), ucwords(), ucwordbreaks()
1316         function ucwordbreaksCallbackAscii($matches){
1317                 return $this->ucfirst($matches[1]);
1318         }
1319
1320         function ucwordbreaksCallbackMB($matches){
1321                 return mb_strtoupper($matches[0]);
1322         }
1323
1324         function ucCallback($matches){
1325                 list( $wikiUpperChars ) = self::getCaseMaps();
1326                 return strtr( $matches[1], $wikiUpperChars );
1327         }
1328
1329         function lcCallback($matches){
1330                 list( , $wikiLowerChars ) = self::getCaseMaps();
1331                 return strtr( $matches[1], $wikiLowerChars );
1332         }
1333
1334         function ucwordsCallbackMB($matches){
1335                 return mb_strtoupper($matches[0]);
1336         }
1337
1338         function ucwordsCallbackWiki($matches){
1339                 list( $wikiUpperChars ) = self::getCaseMaps();
1340                 return strtr( $matches[0], $wikiUpperChars );
1341         }
1342
1343         function ucfirst( $str ) {
1344                 if ( empty($str) ) return $str;
1345                 if ( ord($str[0]) < 128 ) return ucfirst($str);
1346                 else return self::uc($str,true); // fall back to more complex logic in case of multibyte strings
1347         }
1348
1349         function uc( $str, $first = false ) {
1350                 if ( function_exists( 'mb_strtoupper' ) ) {
1351                         if ( $first ) {
1352                                 if ( self::isMultibyte( $str ) ) {
1353                                         return mb_strtoupper( mb_substr( $str, 0, 1 ) ) . mb_substr( $str, 1 );
1354                                 } else {
1355                                         return ucfirst( $str );
1356                                 }
1357                         } else {
1358                                 return self::isMultibyte( $str ) ? mb_strtoupper( $str ) : strtoupper( $str );
1359                         }
1360                 } else {
1361                         if ( self::isMultibyte( $str ) ) {
1362                                 list( $wikiUpperChars ) = $this->getCaseMaps();
1363                                 $x = $first ? '^' : '';
1364                                 return preg_replace_callback(
1365                                         "/$x([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)/",
1366                                         array($this,"ucCallback"),
1367                                         $str
1368                                 );
1369                         } else {
1370                                 return $first ? ucfirst( $str ) : strtoupper( $str );
1371                         }
1372                 }
1373         }
1374
1375         function lcfirst( $str ) {
1376                 if ( empty($str) ) return $str;
1377                 if ( is_string( $str ) && ord($str[0]) < 128 ) {
1378                         // editing string in place = cool
1379                         $str[0]=strtolower($str[0]);
1380                         return $str;
1381                 }
1382                 else return self::lc( $str, true );
1383         }
1384
1385         function lc( $str, $first = false ) {
1386                 if ( function_exists( 'mb_strtolower' ) )
1387                         if ( $first )
1388                                 if ( self::isMultibyte( $str ) )
1389                                         return mb_strtolower( mb_substr( $str, 0, 1 ) ) . mb_substr( $str, 1 );
1390                                 else
1391                                         return strtolower( substr( $str, 0, 1 ) ) . substr( $str, 1 );
1392                         else
1393                                 return self::isMultibyte( $str ) ? mb_strtolower( $str ) : strtolower( $str );
1394                 else
1395                         if ( self::isMultibyte( $str ) ) {
1396                                 list( , $wikiLowerChars ) = self::getCaseMaps();
1397                                 $x = $first ? '^' : '';
1398                                 return preg_replace_callback(
1399                                         "/$x([A-Z]|[\\xc0-\\xff][\\x80-\\xbf]*)/",
1400                                         array($this,"lcCallback"),
1401                                         $str
1402                                 );
1403                         } else
1404                                 return $first ? strtolower( substr( $str, 0, 1 ) ) . substr( $str, 1 ) : strtolower( $str );
1405         }
1406
1407         function isMultibyte( $str ) {
1408                 return (bool)preg_match( '/[\x80-\xff]/', $str );
1409         }
1410
1411         function ucwords($str) {
1412                 if ( self::isMultibyte( $str ) ) {
1413                         $str = self::lc($str);
1414
1415                         // regexp to find first letter in each word (i.e. after each space)
1416                         $replaceRegexp = "/^([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)| ([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)/";
1417
1418                         // function to use to capitalize a single char
1419                         if ( function_exists( 'mb_strtoupper' ) )
1420                                 return preg_replace_callback(
1421                                         $replaceRegexp,
1422                                         array($this,"ucwordsCallbackMB"),
1423                                         $str
1424                                 );
1425                         else
1426                                 return preg_replace_callback(
1427                                         $replaceRegexp,
1428                                         array($this,"ucwordsCallbackWiki"),
1429                                         $str
1430                                 );
1431                 }
1432                 else
1433                         return ucwords( strtolower( $str ) );
1434         }
1435
1436   # capitalize words at word breaks
1437         function ucwordbreaks($str){
1438                 if (self::isMultibyte( $str ) ) {
1439                         $str = self::lc($str);
1440
1441                         // since \b doesn't work for UTF-8, we explicitely define word break chars
1442                         $breaks= "[ \-\(\)\}\{\.,\?!]";
1443
1444                         // find first letter after word break
1445                         $replaceRegexp = "/^([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)|$breaks([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)/";
1446
1447                         if ( function_exists( 'mb_strtoupper' ) )
1448                                 return preg_replace_callback(
1449                                         $replaceRegexp,
1450                                         array($this,"ucwordbreaksCallbackMB"),
1451                                         $str
1452                                 );
1453                         else
1454                                 return preg_replace_callback(
1455                                         $replaceRegexp,
1456                                         array($this,"ucwordsCallbackWiki"),
1457                                         $str
1458                                 );
1459                 }
1460                 else
1461                         return preg_replace_callback(
1462                         '/\b([\w\x80-\xff]+)\b/',
1463                         array($this,"ucwordbreaksCallbackAscii"),
1464                         $str );
1465         }
1466
1467         /**
1468          * Return a case-folded representation of $s
1469          *
1470          * This is a representation such that caseFold($s1)==caseFold($s2) if $s1
1471          * and $s2 are the same except for the case of their characters. It is not
1472          * necessary for the value returned to make sense when displayed.
1473          *
1474          * Do *not* perform any other normalisation in this function. If a caller
1475          * uses this function when it should be using a more general normalisation
1476          * function, then fix the caller.
1477          */
1478         function caseFold( $s ) {
1479                 return $this->uc( $s );
1480         }
1481
1482         function checkTitleEncoding( $s ) {
1483                 if( is_array( $s ) ) {
1484                         wfDebugDieBacktrace( 'Given array to checkTitleEncoding.' );
1485                 }
1486                 # Check for non-UTF-8 URLs
1487                 $ishigh = preg_match( '/[\x80-\xff]/', $s);
1488                 if(!$ishigh) return $s;
1489
1490                 $isutf8 = preg_match( '/^([\x00-\x7f]|[\xc0-\xdf][\x80-\xbf]|' .
1491                 '[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xf7][\x80-\xbf]{3})+$/', $s );
1492                 if( $isutf8 ) return $s;
1493
1494                 return $this->iconv( $this->fallback8bitEncoding(), "utf-8", $s );
1495         }
1496
1497         function fallback8bitEncoding() {
1498                 $this->load();
1499                 return $this->fallback8bitEncoding;
1500         }
1501
1502         /**
1503          * Some languages have special punctuation to strip out
1504          * or characters which need to be converted for MySQL's
1505          * indexing to grok it correctly. Make such changes here.
1506          *
1507          * @param $string String
1508          * @return String
1509          */
1510         function stripForSearch( $string ) {
1511                 global $wgDBtype;
1512                 if ( $wgDBtype != 'mysql' ) {
1513                         return $string;
1514                 }
1515
1516                 # MySQL fulltext index doesn't grok utf-8, so we
1517                 # need to fold cases and convert to hex
1518
1519                 wfProfileIn( __METHOD__ );
1520                 if( function_exists( 'mb_strtolower' ) ) {
1521                         $out = preg_replace(
1522                                 "/([\\xc0-\\xff][\\x80-\\xbf]*)/e",
1523                                 "'U8' . bin2hex( \"$1\" )",
1524                                 mb_strtolower( $string ) );
1525                 } else {
1526                         list( , $wikiLowerChars ) = self::getCaseMaps();
1527                         $out = preg_replace(
1528                                 "/([\\xc0-\\xff][\\x80-\\xbf]*)/e",
1529                                 "'U8' . bin2hex( strtr( \"\$1\", \$wikiLowerChars ) )",
1530                                 $string );
1531                 }
1532                 wfProfileOut( __METHOD__ );
1533                 return $out;
1534         }
1535
1536         function convertForSearchResult( $termsArray ) {
1537                 # some languages, e.g. Chinese, need to do a conversion
1538                 # in order for search results to be displayed correctly
1539                 return $termsArray;
1540         }
1541
1542         /**
1543          * Get the first character of a string.
1544          *
1545          * @param $s string
1546          * @return string
1547          */
1548         function firstChar( $s ) {
1549                 $matches = array();
1550                 preg_match( '/^([\x00-\x7f]|[\xc0-\xdf][\x80-\xbf]|' .
1551                 '[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xf7][\x80-\xbf]{3})/', $s, $matches);
1552
1553                 if ( isset( $matches[1] ) ) {
1554                         if ( strlen( $matches[1] ) != 3 ) {
1555                                 return $matches[1];
1556                         }
1557
1558                         // Break down Hangul syllables to grab the first jamo
1559                         $code = utf8ToCodepoint( $matches[1] );
1560                         if ( $code < 0xac00 || 0xd7a4 <= $code) {
1561                                 return $matches[1];
1562                         } elseif ( $code < 0xb098 ) {
1563                                 return "\xe3\x84\xb1";
1564                         } elseif ( $code < 0xb2e4 ) {
1565                                 return "\xe3\x84\xb4";
1566                         } elseif ( $code < 0xb77c ) {
1567                                 return "\xe3\x84\xb7";
1568                         } elseif ( $code < 0xb9c8 ) {
1569                                 return "\xe3\x84\xb9";
1570                         } elseif ( $code < 0xbc14 ) {
1571                                 return "\xe3\x85\x81";
1572                         } elseif ( $code < 0xc0ac ) {
1573                                 return "\xe3\x85\x82";
1574                         } elseif ( $code < 0xc544 ) {
1575                                 return "\xe3\x85\x85";
1576                         } elseif ( $code < 0xc790 ) {
1577                                 return "\xe3\x85\x87";
1578                         } elseif ( $code < 0xcc28 ) {
1579                                 return "\xe3\x85\x88";
1580                         } elseif ( $code < 0xce74 ) {
1581                                 return "\xe3\x85\x8a";
1582                         } elseif ( $code < 0xd0c0 ) {
1583                                 return "\xe3\x85\x8b";
1584                         } elseif ( $code < 0xd30c ) {
1585                                 return "\xe3\x85\x8c";
1586                         } elseif ( $code < 0xd558 ) {
1587                                 return "\xe3\x85\x8d";
1588                         } else {
1589                                 return "\xe3\x85\x8e";
1590                         }
1591                 } else {
1592                         return "";
1593                 }
1594         }
1595
1596         function initEncoding() {
1597                 # Some languages may have an alternate char encoding option
1598                 # (Esperanto X-coding, Japanese furigana conversion, etc)
1599                 # If this language is used as the primary content language,
1600                 # an override to the defaults can be set here on startup.
1601         }
1602
1603         function recodeForEdit( $s ) {
1604                 # For some languages we'll want to explicitly specify
1605                 # which characters make it into the edit box raw
1606                 # or are converted in some way or another.
1607                 # Note that if wgOutputEncoding is different from
1608                 # wgInputEncoding, this text will be further converted
1609                 # to wgOutputEncoding.
1610                 global $wgEditEncoding;
1611                 if( $wgEditEncoding == '' or
1612                   $wgEditEncoding == 'UTF-8' ) {
1613                         return $s;
1614                 } else {
1615                         return $this->iconv( 'UTF-8', $wgEditEncoding, $s );
1616                 }
1617         }
1618
1619         function recodeInput( $s ) {
1620                 # Take the previous into account.
1621                 global $wgEditEncoding;
1622                 if($wgEditEncoding != "") {
1623                         $enc = $wgEditEncoding;
1624                 } else {
1625                         $enc = 'UTF-8';
1626                 }
1627                 if( $enc == 'UTF-8' ) {
1628                         return $s;
1629                 } else {
1630                         return $this->iconv( $enc, 'UTF-8', $s );
1631                 }
1632         }
1633
1634         /**
1635          * For right-to-left language support
1636          *
1637          * @return bool
1638          */
1639         function isRTL() {
1640                 $this->load();
1641                 return $this->rtl;
1642         }
1643
1644         /**
1645          * A hidden direction mark (LRM or RLM), depending on the language direction
1646          *
1647          * @return string
1648          */
1649         function getDirMark() {
1650                 return $this->isRTL() ? "\xE2\x80\x8F" : "\xE2\x80\x8E";
1651         }
1652
1653         /**
1654          * An arrow, depending on the language direction
1655          *
1656          * @return string
1657          */
1658         function getArrow() {
1659                 return $this->isRTL() ? '←' : '→';
1660         }
1661
1662         /**
1663          * To allow "foo[[bar]]" to extend the link over the whole word "foobar"
1664          *
1665          * @return bool
1666          */
1667         function linkPrefixExtension() {
1668                 $this->load();
1669                 return $this->linkPrefixExtension;
1670         }
1671
1672         function &getMagicWords() {
1673                 $this->load();
1674                 return $this->magicWords;
1675         }
1676
1677         # Fill a MagicWord object with data from here
1678         function getMagic( &$mw ) {
1679                 if ( !$this->mMagicHookDone ) {
1680                         $this->mMagicHookDone = true;
1681                         wfRunHooks( 'LanguageGetMagic', array( &$this->mMagicExtensions, $this->getCode() ) );
1682                 }
1683                 if ( isset( $this->mMagicExtensions[$mw->mId] ) ) {
1684                         $rawEntry = $this->mMagicExtensions[$mw->mId];
1685                 } else {
1686                         $magicWords =& $this->getMagicWords();
1687                         if ( isset( $magicWords[$mw->mId] ) ) {
1688                                 $rawEntry = $magicWords[$mw->mId];
1689                         } else {
1690                                 # Fall back to English if local list is incomplete
1691                                 $magicWords =& Language::getMagicWords();
1692                                 if ( !isset($magicWords[$mw->mId]) ) {
1693                                         throw new MWException("Magic word '{$mw->mId}' not found" );
1694                                 }
1695                                 $rawEntry = $magicWords[$mw->mId];
1696                         }
1697                 }
1698
1699                 if( !is_array( $rawEntry ) ) {
1700                         error_log( "\"$rawEntry\" is not a valid magic thingie for \"$mw->mId\"" );
1701                 } else {
1702                         $mw->mCaseSensitive = $rawEntry[0];
1703                         $mw->mSynonyms = array_slice( $rawEntry, 1 );
1704                 }
1705         }
1706
1707         /**
1708          * Add magic words to the extension array
1709          */
1710         function addMagicWordsByLang( $newWords ) {
1711                 $code = $this->getCode();
1712                 $fallbackChain = array();
1713                 while ( $code && !in_array( $code, $fallbackChain ) ) {
1714                         $fallbackChain[] = $code;
1715                         $code = self::getFallbackFor( $code );
1716                 }
1717                 if ( !in_array( 'en', $fallbackChain ) ) {
1718                         $fallbackChain[] = 'en';
1719                 }
1720                 $fallbackChain = array_reverse( $fallbackChain );
1721                 foreach ( $fallbackChain as $code ) {
1722                         if ( isset( $newWords[$code] ) ) {
1723                                 $this->mMagicExtensions = $newWords[$code] + $this->mMagicExtensions;
1724                         }
1725                 }
1726         }
1727
1728         /**
1729          * Get special page names, as an associative array
1730          *   case folded alias => real name
1731          */
1732         function getSpecialPageAliases() {
1733                 $this->load();
1734
1735                 // Cache aliases because it may be slow to load them
1736                 if ( !isset( $this->mExtendedSpecialPageAliases ) ) {
1737
1738                         // Initialise array
1739                         $this->mExtendedSpecialPageAliases = $this->specialPageAliases;
1740
1741                         global $wgExtensionAliasesFiles;
1742                         foreach ( $wgExtensionAliasesFiles as $file ) {
1743
1744                                 // Fail fast
1745                                 if ( !file_exists($file) )
1746                                         throw new MWException( "Aliases file does not exist: $file" );
1747
1748                                 $aliases = array();
1749                                 require($file);
1750
1751                                 // Check the availability of aliases
1752                                 if ( !isset($aliases['en']) )
1753                                         throw new MWException( "Malformed aliases file: $file" );
1754
1755                                 // Merge all aliases in fallback chain
1756                                 $code = $this->getCode();
1757                                 do {
1758                                         if ( !isset($aliases[$code]) ) continue;
1759
1760                                         $aliases[$code] = $this->fixSpecialPageAliases( $aliases[$code] );
1761                                         /* Merge the aliases, THIS will break if there is special page name
1762                                         * which looks like a numerical key, thanks to PHP...
1763                                         * See the comments for wfArrayMerge in GlobalSettings.php. */
1764                                         $this->mExtendedSpecialPageAliases = array_merge_recursive(
1765                                                 $this->mExtendedSpecialPageAliases, $aliases[$code] );
1766
1767                                 } while ( $code = self::getFallbackFor( $code ) );
1768                         }
1769
1770                         wfRunHooks( 'LanguageGetSpecialPageAliases',
1771                                 array( &$this->mExtendedSpecialPageAliases, $this->getCode() ) );
1772                 }
1773
1774                 return $this->mExtendedSpecialPageAliases;
1775         }
1776
1777         /**
1778          * Function to fix special page aliases. Will convert the first letter to
1779          * upper case and spaces to underscores. Can be given a full aliases array,
1780          * in which case it will recursively fix all aliases.
1781          */
1782         public function fixSpecialPageAliases( $mixed ) {
1783                 // Work recursively until in string level
1784                 if ( is_array($mixed) ) {
1785                         $callback = array( $this, 'fixSpecialPageAliases' );
1786                         return array_map( $callback, $mixed );
1787                 }
1788                 return str_replace( ' ', '_', $this->ucfirst( $mixed ) );
1789         }
1790
1791         /**
1792          * Italic is unsuitable for some languages
1793          *
1794          * @param $text String: the text to be emphasized.
1795          * @return string
1796          */
1797         function emphasize( $text ) {
1798                 return "<em>$text</em>";
1799         }
1800
1801          /**
1802           * Normally we output all numbers in plain en_US style, that is
1803           * 293,291.235 for twohundredninetythreethousand-twohundredninetyone
1804           * point twohundredthirtyfive. However this is not sutable for all
1805           * languages, some such as Pakaran want ੨੯੩,੨੯੫.੨੩੫ and others such as
1806           * Icelandic just want to use commas instead of dots, and dots instead
1807           * of commas like "293.291,235".
1808           *
1809           * An example of this function being called:
1810           * <code>
1811           * wfMsg( 'message', $wgLang->formatNum( $num ) )
1812           * </code>
1813           *
1814           * See LanguageGu.php for the Gujarati implementation and
1815           * LanguageIs.php for the , => . and . => , implementation.
1816           *
1817           * @todo check if it's viable to use localeconv() for the decimal
1818           *       seperator thing.
1819           * @param $number Mixed: the string to be formatted, should be an integer
1820           *        or a floating point number.
1821           * @param $nocommafy Bool: set to true for special numbers like dates
1822           * @return string
1823           */
1824         function formatNum( $number, $nocommafy = false ) {
1825                 global $wgTranslateNumerals;
1826                 if (!$nocommafy) {
1827                         $number = $this->commafy($number);
1828                         $s = $this->separatorTransformTable();
1829                         if (!is_null($s)) { $number = strtr($number, $s); }
1830                 }
1831
1832                 if ($wgTranslateNumerals) {
1833                         $s = $this->digitTransformTable();
1834                         if (!is_null($s)) { $number = strtr($number, $s); }
1835                 }
1836
1837                 return $number;
1838         }
1839
1840         function parseFormattedNumber( $number ) {
1841                 $s = $this->digitTransformTable();
1842                 if (!is_null($s)) { $number = strtr($number, array_flip($s)); }
1843
1844                 $s = $this->separatorTransformTable();
1845                 if (!is_null($s)) { $number = strtr($number, array_flip($s)); }
1846
1847                 $number = strtr( $number, array (',' => '') );
1848                 return $number;
1849         }
1850
1851         /**
1852          * Adds commas to a given number
1853          *
1854          * @param $_ mixed
1855          * @return string
1856          */
1857         function commafy($_) {
1858                 return strrev((string)preg_replace('/(\d{3})(?=\d)(?!\d*\.)/','$1,',strrev($_)));
1859         }
1860
1861         function digitTransformTable() {
1862                 $this->load();
1863                 return $this->digitTransformTable;
1864         }
1865
1866         function separatorTransformTable() {
1867                 $this->load();
1868                 return $this->separatorTransformTable;
1869         }
1870
1871
1872         /**
1873          * For the credit list in includes/Credits.php (action=credits)
1874          *
1875          * @param $l Array
1876          * @return string
1877          */
1878         function listToText( $l ) {
1879                 $s = '';
1880                 $m = count($l) - 1;
1881                 for ($i = $m; $i >= 0; $i--) {
1882                         if ($i == $m) {
1883                                 $s = $l[$i];
1884                         } else if ($i == $m - 1) {
1885                                 $s = $l[$i] . ' ' . $this->getMessageFromDB( 'and' ) . ' ' . $s;
1886                         } else {
1887                                 $s = $l[$i] . ', ' . $s;
1888                         }
1889                 }
1890                 return $s;
1891         }
1892
1893         /**
1894          * Truncate a string to a specified length in bytes, appending an optional
1895          * string (e.g. for ellipses)
1896          *
1897          * The database offers limited byte lengths for some columns in the database;
1898          * multi-byte character sets mean we need to ensure that only whole characters
1899          * are included, otherwise broken characters can be passed to the user
1900          *
1901          * If $length is negative, the string will be truncated from the beginning
1902          *
1903          * @param $string String to truncate
1904          * @param $length Int: maximum length (excluding ellipses)
1905          * @param $ellipsis String to append to the truncated text
1906          * @return string
1907          */
1908         function truncate( $string, $length, $ellipsis = "" ) {
1909                 if( $length == 0 ) {
1910                         return $ellipsis;
1911                 }
1912                 if ( strlen( $string ) <= abs( $length ) ) {
1913                         return $string;
1914                 }
1915                 if( $length > 0 ) {
1916                         $string = substr( $string, 0, $length );
1917                         $char = ord( $string[strlen( $string ) - 1] );
1918                         $m = array();
1919                         if ($char >= 0xc0) {
1920                                 # We got the first byte only of a multibyte char; remove it.
1921                                 $string = substr( $string, 0, -1 );
1922                         } elseif( $char >= 0x80 &&
1923                                   preg_match( '/^(.*)(?:[\xe0-\xef][\x80-\xbf]|' .
1924                                               '[\xf0-\xf7][\x80-\xbf]{1,2})$/', $string, $m ) ) {
1925                             # We chopped in the middle of a character; remove it
1926                                 $string = $m[1];
1927                         }
1928                         return $string . $ellipsis;
1929                 } else {
1930                         $string = substr( $string, $length );
1931                         $char = ord( $string[0] );
1932                         if( $char >= 0x80 && $char < 0xc0 ) {
1933                                 # We chopped in the middle of a character; remove the whole thing
1934                                 $string = preg_replace( '/^[\x80-\xbf]+/', '', $string );
1935                         }
1936                         return $ellipsis . $string;
1937                 }
1938         }
1939
1940         /**
1941          * Grammatical transformations, needed for inflected languages
1942          * Invoked by putting {{grammar:case|word}} in a message
1943          *
1944          * @param $word string
1945          * @param $case string
1946          * @return string
1947          */
1948         function convertGrammar( $word, $case ) {
1949                 global $wgGrammarForms;
1950                 if ( isset($wgGrammarForms[$this->getCode()][$case][$word]) ) {
1951                         return $wgGrammarForms[$this->getCode()][$case][$word];
1952                 }
1953                 return $word;
1954         }
1955
1956         /**
1957          * Plural form transformations, needed for some languages.
1958          * For example, there are 3 form of plural in Russian and Polish,
1959          * depending on "count mod 10". See [[w:Plural]]
1960          * For English it is pretty simple.
1961          *
1962          * Invoked by putting {{plural:count|wordform1|wordform2}}
1963          * or {{plural:count|wordform1|wordform2|wordform3}}
1964          *
1965          * Example: {{plural:{{NUMBEROFARTICLES}}|article|articles}}
1966          *
1967          * @param $count Integer: non-localized number
1968          * @param $forms Array: different plural forms
1969          * @return string Correct form of plural for $count in this language
1970          */
1971         function convertPlural( $count, $forms ) {
1972                 if ( !count($forms) ) { return ''; }
1973                 $forms = $this->preConvertPlural( $forms, 2 );
1974
1975                 return ( abs($count) == 1 ) ? $forms[0] : $forms[1];
1976         }
1977
1978         /**
1979          * Checks that convertPlural was given an array and pads it to requested
1980          * amound of forms by copying the last one.
1981          *
1982          * @param $count Integer: How many forms should there be at least
1983          * @param $forms Array of forms given to convertPlural
1984          * @return array Padded array of forms or an exception if not an array
1985          */
1986         protected function preConvertPlural( /* Array */ $forms, $count ) {
1987                 while ( count($forms) < $count ) {
1988                         $forms[] = $forms[count($forms)-1];
1989                 }
1990                 return $forms;
1991         }
1992
1993         /**
1994          * For translaing of expiry times
1995          * @param $str String: the validated block time in English
1996          * @return Somehow translated block time
1997          * @see LanguageFi.php for example implementation
1998          */
1999         function translateBlockExpiry( $str ) {
2000
2001                 $scBlockExpiryOptions = $this->getMessageFromDB( 'ipboptions' );
2002
2003                 if ( $scBlockExpiryOptions == '-') {
2004                         return $str;
2005                 }
2006
2007                 foreach (explode(',', $scBlockExpiryOptions) as $option) {
2008                         if ( strpos($option, ":") === false )
2009                                 continue;
2010                         list($show, $value) = explode(":", $option);
2011                         if ( strcmp ( $str, $value) == 0 ) {
2012                                 return htmlspecialchars( trim( $show ) );
2013                         }
2014                 }
2015
2016                 return $str;
2017         }
2018
2019         /**
2020          * languages like Chinese need to be segmented in order for the diff
2021          * to be of any use
2022          *
2023          * @param $text String
2024          * @return String
2025          */
2026         function segmentForDiff( $text ) {
2027                 return $text;
2028         }
2029
2030         /**
2031          * and unsegment to show the result
2032          *
2033          * @param $text String
2034          * @return String
2035          */
2036         function unsegmentForDiff( $text ) {
2037                 return $text;
2038         }
2039
2040         # convert text to different variants of a language.
2041         function convert( $text, $isTitle = false) {
2042                 return $this->mConverter->convert($text, $isTitle);
2043         }
2044
2045         # Convert text from within Parser
2046         function parserConvert( $text, &$parser ) {
2047                 return $this->mConverter->parserConvert( $text, $parser );
2048         }
2049
2050         # Check if this is a language with variants
2051         function hasVariants(){
2052                 return sizeof($this->getVariants())>1;
2053         }
2054
2055         # Put custom tags (e.g. -{ }-) around math to prevent conversion
2056         function armourMath($text){
2057                 return $this->mConverter->armourMath($text);
2058         }
2059
2060
2061         /**
2062          * Perform output conversion on a string, and encode for safe HTML output.
2063          * @param $text String
2064          * @param $isTitle Bool -- wtf?
2065          * @return string
2066          * @todo this should get integrated somewhere sane
2067          */
2068         function convertHtml( $text, $isTitle = false ) {
2069                 return htmlspecialchars( $this->convert( $text, $isTitle ) );
2070         }
2071
2072         function convertCategoryKey( $key ) {
2073                 return $this->mConverter->convertCategoryKey( $key );
2074         }
2075
2076         /**
2077          * get the list of variants supported by this langauge
2078          * see sample implementation in LanguageZh.php
2079          *
2080          * @return array an array of language codes
2081          */
2082         function getVariants() {
2083                 return $this->mConverter->getVariants();
2084         }
2085
2086
2087         function getPreferredVariant( $fromUser = true ) {
2088                 return $this->mConverter->getPreferredVariant( $fromUser );
2089         }
2090
2091         /**
2092          * if a language supports multiple variants, it is
2093          * possible that non-existing link in one variant
2094          * actually exists in another variant. this function
2095          * tries to find it. See e.g. LanguageZh.php
2096          *
2097          * @param $link String: the name of the link
2098          * @param $nt Mixed: the title object of the link
2099          * @return null the input parameters may be modified upon return
2100          */
2101         function findVariantLink( &$link, &$nt, $forTemplate = false ) {
2102                 $this->mConverter->findVariantLink($link, $nt, $forTemplate );
2103         }
2104
2105         /**
2106          * If a language supports multiple variants, converts text
2107          * into an array of all possible variants of the text:
2108          *  'variant' => text in that variant
2109          */
2110
2111         function convertLinkToAllVariants($text){
2112                 return $this->mConverter->convertLinkToAllVariants($text);
2113         }
2114
2115
2116         /**
2117          * returns language specific options used by User::getPageRenderHash()
2118          * for example, the preferred language variant
2119          *
2120          * @return string
2121          */
2122         function getExtraHashOptions() {
2123                 return $this->mConverter->getExtraHashOptions();
2124         }
2125
2126         /**
2127          * for languages that support multiple variants, the title of an
2128          * article may be displayed differently in different variants. this
2129          * function returns the apporiate title defined in the body of the article.
2130          *
2131          * @return string
2132          */
2133         function getParsedTitle() {
2134                 return $this->mConverter->getParsedTitle();
2135         }
2136
2137         /**
2138          * Enclose a string with the "no conversion" tag. This is used by
2139          * various functions in the Parser
2140          *
2141          * @param $text String: text to be tagged for no conversion
2142          * @param $noParse
2143          * @return string the tagged text
2144          */
2145         function markNoConversion( $text, $noParse=false ) {
2146                 return $this->mConverter->markNoConversion( $text, $noParse );
2147         }
2148
2149         /**
2150          * A regular expression to match legal word-trailing characters
2151          * which should be merged onto a link of the form [[foo]]bar.
2152          *
2153          * @return string
2154          */
2155         function linkTrail() {
2156                 $this->load();
2157                 return $this->linkTrail;
2158         }
2159
2160         function getLangObj() {
2161                 return $this;
2162         }
2163
2164         /**
2165          * Get the RFC 3066 code for this language object
2166          */
2167         function getCode() {
2168                 return $this->mCode;
2169         }
2170
2171         function setCode( $code ) {
2172                 $this->mCode = $code;
2173         }
2174
2175         static function getFileName( $prefix = 'Language', $code, $suffix = '.php' ) {
2176                 return $prefix . str_replace( '-', '_', ucfirst( $code ) ) . $suffix;
2177         }
2178
2179         static function getMessagesFileName( $code ) {
2180                 global $IP;
2181                 return self::getFileName( "$IP/languages/messages/Messages", $code, '.php' );
2182         }
2183
2184         static function getClassFileName( $code ) {
2185                 global $IP;
2186                 return self::getFileName( "$IP/languages/classes/Language", $code, '.php' );
2187         }
2188
2189         static function getLocalisationArray( $code, $disableCache = false ) {
2190                 self::loadLocalisation( $code, $disableCache );
2191                 return self::$mLocalisationCache[$code];
2192         }
2193
2194         /**
2195          * Load localisation data for a given code into the static cache
2196          *
2197          * @return array Dependencies, map of filenames to mtimes
2198          */
2199         static function loadLocalisation( $code, $disableCache = false ) {
2200                 static $recursionGuard = array();
2201                 global $wgMemc, $wgCheckSerialized;
2202
2203                 if ( !$code ) {
2204                         throw new MWException( "Invalid language code requested" );
2205                 }
2206
2207                 if ( !$disableCache ) {
2208                         # Try the per-process cache
2209                         if ( isset( self::$mLocalisationCache[$code] ) ) {
2210                                 return self::$mLocalisationCache[$code]['deps'];
2211                         }
2212
2213                         wfProfileIn( __METHOD__ );
2214
2215                         # Try the serialized directory
2216                         $cache = wfGetPrecompiledData( self::getFileName( "Messages", $code, '.ser' ) );
2217                         if ( $cache ) {
2218                                 if ( $wgCheckSerialized && self::isLocalisationOutOfDate( $cache ) ) {
2219                                         $cache = false;
2220                                         wfDebug( "Language::loadLocalisation(): precompiled data file for $code is out of date\n" );
2221                                 } else {
2222                                         self::$mLocalisationCache[$code] = $cache;
2223                                         wfDebug( "Language::loadLocalisation(): got localisation for $code from precompiled data file\n" );
2224                                         wfProfileOut( __METHOD__ );
2225                                         return self::$mLocalisationCache[$code]['deps'];
2226                                 }
2227                         }
2228
2229                         # Try the global cache
2230                         $memcKey = wfMemcKey('localisation', $code );
2231                         $fbMemcKey = wfMemcKey('fallback', $cache['fallback'] );
2232                         $cache = $wgMemc->get( $memcKey );
2233                         if ( $cache ) {
2234                                 if ( self::isLocalisationOutOfDate( $cache ) ) {
2235                                         $wgMemc->delete( $memcKey );
2236                                         $wgMemc->delete( $fbMemcKey );
2237                                         $cache = false;
2238                                         wfDebug( "Language::loadLocalisation(): localisation cache for $code had expired\n" );
2239                                 } else {
2240                                         self::$mLocalisationCache[$code] = $cache;
2241                                         wfDebug( "Language::loadLocalisation(): got localisation for $code from cache\n" );
2242                                         wfProfileOut( __METHOD__ );
2243                                         return $cache['deps'];
2244                                 }
2245                         }
2246                 } else {
2247                         wfProfileIn( __METHOD__ );
2248                 }
2249
2250                 # Default fallback, may be overridden when the messages file is included
2251                 if ( $code != 'en' ) {
2252                         $fallback = 'en';
2253                 } else {
2254                         $fallback = false;
2255                 }
2256
2257                 # Load the primary localisation from the source file
2258                 $filename = self::getMessagesFileName( $code );
2259                 if ( !file_exists( $filename ) ) {
2260                         wfDebug( "Language::loadLocalisation(): no localisation file for $code, using implicit fallback to en\n" );
2261                         $cache = compact( self::$mLocalisationKeys ); // Set correct fallback
2262                         $deps = array();
2263                 } else {
2264                         $deps = array( $filename => filemtime( $filename ) );
2265                         require( $filename );
2266                         $cache = compact( self::$mLocalisationKeys );
2267                         wfDebug( "Language::loadLocalisation(): got localisation for $code from source\n" );
2268                 }
2269
2270                 if ( !empty( $fallback ) ) {
2271                         # Load the fallback localisation, with a circular reference guard
2272                         if ( isset( $recursionGuard[$code] ) ) {
2273                                 throw new MWException( "Error: Circular fallback reference in language code $code" );
2274                         }
2275                         $recursionGuard[$code] = true;
2276                         $newDeps = self::loadLocalisation( $fallback, $disableCache );
2277                         unset( $recursionGuard[$code] );
2278
2279                         $secondary = self::$mLocalisationCache[$fallback];
2280                         $deps = array_merge( $deps, $newDeps );
2281
2282                         # Merge the fallback localisation with the current localisation
2283                         foreach ( self::$mLocalisationKeys as $key ) {
2284                                 if ( isset( $cache[$key] ) ) {
2285                                         if ( isset( $secondary[$key] ) ) {
2286                                                 if ( in_array( $key, self::$mMergeableMapKeys ) ) {
2287                                                         $cache[$key] = $cache[$key] + $secondary[$key];
2288                                                 } elseif ( in_array( $key, self::$mMergeableListKeys ) ) {
2289                                                         $cache[$key] = array_merge( $secondary[$key], $cache[$key] );
2290                                                 } elseif ( in_array( $key, self::$mMergeableAliasListKeys ) ) {
2291                                                         $cache[$key] = array_merge_recursive( $cache[$key], $secondary[$key] );
2292                                                 }
2293                                         }
2294                                 } else {
2295                                         $cache[$key] = $secondary[$key];
2296                                 }
2297                         }
2298
2299                         # Merge bookstore lists if requested
2300                         if ( !empty( $cache['bookstoreList']['inherit'] ) ) {
2301                                 $cache['bookstoreList'] = array_merge( $cache['bookstoreList'], $secondary['bookstoreList'] );
2302                         }
2303                         if ( isset( $cache['bookstoreList']['inherit'] ) ) {
2304                                 unset( $cache['bookstoreList']['inherit'] );
2305                         }
2306                 }
2307
2308                 # Add dependencies to the cache entry
2309                 $cache['deps'] = $deps;
2310
2311                 # Replace spaces with underscores in namespace names
2312                 $cache['namespaceNames'] = str_replace( ' ', '_', $cache['namespaceNames'] );
2313
2314                 # And do the same for specialpage aliases. $page is an array.
2315                 foreach ( $cache['specialPageAliases'] as &$page ) {
2316                         $page = str_replace( ' ', '_', $page );
2317                 }
2318                 # Decouple the reference to prevent accidental damage
2319                 unset($page);
2320
2321                 # Save to both caches
2322                 self::$mLocalisationCache[$code] = $cache;
2323                 if ( !$disableCache ) {
2324                         $wgMemc->set( $memcKey, $cache );
2325                         $wgMemc->set( $fbMemcKey, (string) $cache['fallback'] );
2326                 }
2327
2328                 wfProfileOut( __METHOD__ );
2329                 return $deps;
2330         }
2331
2332         /**
2333          * Test if a given localisation cache is out of date with respect to the
2334          * source Messages files. This is done automatically for the global cache
2335          * in $wgMemc, but is only done on certain occasions for the serialized
2336          * data file.
2337          *
2338          * @param $cache mixed Either a language code or a cache array
2339          */
2340         static function isLocalisationOutOfDate( $cache ) {
2341                 if ( !is_array( $cache ) ) {
2342                         self::loadLocalisation( $cache );
2343                         $cache = self::$mLocalisationCache[$cache];
2344                 }
2345                 $expired = false;
2346                 foreach ( $cache['deps'] as $file => $mtime ) {
2347                         if ( !file_exists( $file ) || filemtime( $file ) > $mtime ) {
2348                                 $expired = true;
2349                                 break;
2350                         }
2351                 }
2352                 return $expired;
2353         }
2354
2355         /**
2356          * Get the fallback for a given language
2357          */
2358         static function getFallbackFor( $code ) {
2359                 // Shortcut
2360                 if ( $code === 'en' ) return false;
2361
2362                 // Local cache
2363                 static $cache = array();
2364                 // Quick return
2365                 if ( isset($cache[$code]) ) return $cache[$code];
2366
2367                 // Try memcache
2368                 global $wgMemc;
2369                 $memcKey = wfMemcKey( 'fallback', $code );
2370                 $fbcode = $wgMemc->get( $memcKey );
2371
2372                 if ( is_string($fbcode) ) {
2373                         // False is stored as a string to detect failures in memcache properly
2374                         if ( $fbcode === '' ) $fbcode = false;
2375
2376                         // Update local cache and return
2377                         $cache[$code] = $fbcode;
2378                         return $fbcode;
2379                 }
2380
2381                 // Nothing in caches, load and and update both caches
2382                 self::loadLocalisation( $code );
2383                 $fbcode = self::$mLocalisationCache[$code]['fallback'];
2384
2385                 $cache[$code] = $fbcode;
2386                 $wgMemc->set( $memcKey, (string) $fbcode );
2387
2388                 return $fbcode;
2389         }
2390
2391         /**
2392          * Get all messages for a given language
2393          */
2394         static function getMessagesFor( $code ) {
2395                 self::loadLocalisation( $code );
2396                 return self::$mLocalisationCache[$code]['messages'];
2397         }
2398
2399         /**
2400          * Get a message for a given language
2401          */
2402         static function getMessageFor( $key, $code ) {
2403                 self::loadLocalisation( $code );
2404                 return isset( self::$mLocalisationCache[$code]['messages'][$key] ) ? self::$mLocalisationCache[$code]['messages'][$key] : null;
2405         }
2406
2407         /**
2408          * Load localisation data for this object
2409          */
2410         function load() {
2411                 if ( !$this->mLoaded ) {
2412                         self::loadLocalisation( $this->getCode() );
2413                         $cache =& self::$mLocalisationCache[$this->getCode()];
2414                         foreach ( self::$mLocalisationKeys as $key ) {
2415                                 $this->$key = $cache[$key];
2416                         }
2417                         $this->mLoaded = true;
2418
2419                         $this->fixUpSettings();
2420                 }
2421         }
2422
2423         /**
2424          * Do any necessary post-cache-load settings adjustment
2425          */
2426         function fixUpSettings() {
2427                 global $wgExtraNamespaces, $wgMetaNamespace, $wgMetaNamespaceTalk,
2428                         $wgNamespaceAliases, $wgAmericanDates;
2429                 wfProfileIn( __METHOD__ );
2430                 if ( $wgExtraNamespaces ) {
2431                         $this->namespaceNames = $wgExtraNamespaces + $this->namespaceNames;
2432                 }
2433
2434                 $this->namespaceNames[NS_PROJECT] = $wgMetaNamespace;
2435                 if ( $wgMetaNamespaceTalk ) {
2436                         $this->namespaceNames[NS_PROJECT_TALK] = $wgMetaNamespaceTalk;
2437                 } else {
2438                         $talk = $this->namespaceNames[NS_PROJECT_TALK];
2439                         $talk = str_replace( '$1', $wgMetaNamespace, $talk );
2440
2441                         # Allow grammar transformations
2442                         # Allowing full message-style parsing would make simple requests
2443                         # such as action=raw much more expensive than they need to be.
2444                         # This will hopefully cover most cases.
2445                         $talk = preg_replace_callback( '/{{grammar:(.*?)\|(.*?)}}/i',
2446                                 array( &$this, 'replaceGrammarInNamespace' ), $talk );
2447                         $talk = str_replace( ' ', '_', $talk );
2448                         $this->namespaceNames[NS_PROJECT_TALK] = $talk;
2449                 }
2450
2451                 # The above mixing may leave namespaces out of canonical order.
2452                 # Re-order by namespace ID number...
2453                 ksort( $this->namespaceNames );
2454
2455                 # Put namespace names and aliases into a hashtable.
2456                 # If this is too slow, then we should arrange it so that it is done
2457                 # before caching. The catch is that at pre-cache time, the above
2458                 # class-specific fixup hasn't been done.
2459                 $this->mNamespaceIds = array();
2460                 foreach ( $this->namespaceNames as $index => $name ) {
2461                         $this->mNamespaceIds[$this->lc($name)] = $index;
2462                 }
2463                 if ( $this->namespaceAliases ) {
2464                         foreach ( $this->namespaceAliases as $name => $index ) {
2465                                 $this->mNamespaceIds[$this->lc($name)] = $index;
2466                         }
2467                 }
2468                 if ( $wgNamespaceAliases ) {
2469                         foreach ( $wgNamespaceAliases as $name => $index ) {
2470                                 $this->mNamespaceIds[$this->lc($name)] = $index;
2471                         }
2472                 }
2473
2474                 if ( $this->defaultDateFormat == 'dmy or mdy' ) {
2475                         $this->defaultDateFormat = $wgAmericanDates ? 'mdy' : 'dmy';
2476                 }
2477                 wfProfileOut( __METHOD__ );
2478         }
2479
2480         function replaceGrammarInNamespace( $m ) {
2481                 return $this->convertGrammar( trim( $m[2] ), trim( $m[1] ) );
2482         }
2483
2484         static function getCaseMaps() {
2485                 static $wikiUpperChars, $wikiLowerChars;
2486                 if ( isset( $wikiUpperChars ) ) {
2487                         return array( $wikiUpperChars, $wikiLowerChars );
2488                 }
2489
2490                 wfProfileIn( __METHOD__ );
2491                 $arr = wfGetPrecompiledData( 'Utf8Case.ser' );
2492                 if ( $arr === false ) {
2493                         throw new MWException(
2494                                 "Utf8Case.ser is missing, please run \"make\" in the serialized directory\n" );
2495                 }
2496                 extract( $arr );
2497                 wfProfileOut( __METHOD__ );
2498                 return array( $wikiUpperChars, $wikiLowerChars );
2499         }
2500
2501         function formatTimePeriod( $seconds ) {
2502                 if ( $seconds < 10 ) {
2503                         return $this->formatNum( sprintf( "%.1f", $seconds ) ) . wfMsg( 'seconds-abbrev' );
2504                 } elseif ( $seconds < 60 ) {
2505                         return $this->formatNum( round( $seconds ) ) . wfMsg( 'seconds-abbrev' );
2506                 } elseif ( $seconds < 3600 ) {
2507                         return $this->formatNum( floor( $seconds / 60 ) ) . wfMsg( 'minutes-abbrev' ) .
2508                                 $this->formatNum( round( fmod( $seconds, 60 ) ) ) . wfMsg( 'seconds-abbrev' );
2509                 } else {
2510                         $hours = floor( $seconds / 3600 );
2511                         $minutes = floor( ( $seconds - $hours * 3600 ) / 60 );
2512                         $secondsPart = round( $seconds - $hours * 3600 - $minutes * 60 );
2513                         return $this->formatNum( $hours ) . wfMsg( 'hours-abbrev' ) .
2514                                 $this->formatNum( $minutes ) . wfMsg( 'minutes-abbrev' ) .
2515                                 $this->formatNum( $secondsPart ) . wfMsg( 'seconds-abbrev' );
2516                 }
2517         }
2518
2519         function formatBitrate( $bps ) {
2520                 $units = array( 'bps', 'kbps', 'Mbps', 'Gbps' );
2521                 if ( $bps <= 0 ) {
2522                         return $this->formatNum( $bps ) . $units[0];
2523                 }
2524                 $unitIndex = floor( log10( $bps ) / 3 );
2525                 $mantissa = $bps / pow( 1000, $unitIndex );
2526                 if ( $mantissa < 10 ) {
2527                         $mantissa = round( $mantissa, 1 );
2528                 } else {
2529                         $mantissa = round( $mantissa );
2530                 }
2531                 return $this->formatNum( $mantissa ) . $units[$unitIndex];
2532         }
2533
2534         /**
2535          * Format a size in bytes for output, using an appropriate
2536          * unit (B, KB, MB or GB) according to the magnitude in question
2537          *
2538          * @param $size Size to format
2539          * @return string Plain text (not HTML)
2540          */
2541         function formatSize( $size ) {
2542                 // For small sizes no decimal places necessary
2543                 $round = 0;
2544                 if( $size > 1024 ) {
2545                         $size = $size / 1024;
2546                         if( $size > 1024 ) {
2547                                 $size = $size / 1024;
2548                                 // For MB and bigger two decimal places are smarter
2549                                 $round = 2;
2550                                 if( $size > 1024 ) {
2551                                         $size = $size / 1024;
2552                                         $msg = 'size-gigabytes';
2553                                 } else {
2554                                         $msg = 'size-megabytes';
2555                                 }
2556                         } else {
2557                                 $msg = 'size-kilobytes';
2558                         }
2559                 } else {
2560                         $msg = 'size-bytes';
2561                 }
2562                 $size = round( $size, $round );
2563                 $text = $this->getMessageFromDB( $msg );
2564                 return str_replace( '$1', $this->formatNum( $size ), $text );
2565         }
2566 }