languages/Language.php

   1 <?php
   2 /**
   3  * @package MediaWiki
   4  * @subpackage Language
   5  */
   6
   7 if( !defined( 'MEDIAWIKI' ) ) {
   8         echo "This file is part of MediaWiki, it is not a valid entry point.\n";
   9         exit( 1 );
  10 }
  11
  12 #
  13 # In general you should not make customizations in these language files
  14 # directly, but should use the MediaWiki: special namespace to customize
  15 # user interface messages through the wiki.
  16 # See http://meta.wikipedia.org/wiki/MediaWiki_namespace
  17 #
  18 # NOTE TO TRANSLATORS: Do not copy this whole file when making translations!
  19 # A lot of common constants and a base class with inheritable methods are
  20 # defined here, which should not be redefined. See the other LanguageXx.php
  21 # files for examples.
  22 #
  23
  24 # Read language names
  25 global $wgLanguageNames;
  26 require_once( 'Names.php' );
  27
  28 global $wgInputEncoding, $wgOutputEncoding;
  29 global $wgDBname, $wgMemc;
  30
  31 /**
  32  * These are always UTF-8, they exist only for backwards compatibility
  33  */
  34 $wgInputEncoding    = "UTF-8";
  35 $wgOutputEncoding       = "UTF-8";
  36
  37 if( function_exists( 'mb_strtoupper' ) ) {
  38         mb_internal_encoding('UTF-8');
  39 }
  40
  41 /* a fake language converter */
  42 class FakeConverter {
  43         var $mLang;
  44         function FakeConverter($langobj) {$this->mLang = $langobj;}
  45         function convert($t, $i) {return $t;}
  46         function parserConvert($t, $p) {return $t;}
  47         function getVariants() { return array( $this->mLang->getCode() ); }
  48         function getPreferredVariant() {return $this->mLang->getCode(); }
  49         function findVariantLink(&$l, &$n) {}
  50         function getExtraHashOptions() {return '';}
  51         function getParsedTitle() {return '';}
  52         function markNoConversion($text) {return $text;}
  53         function convertCategoryKey( $key ) {return $key; }
  54
  55 }
  56
  57 #--------------------------------------------------------------------------
  58 # Internationalisation code
  59 #--------------------------------------------------------------------------
  60
  61 class Language {
  62         var $mConverter, $mVariants, $mCode, $mLoaded = false;
  63
  64         static public $mLocalisationKeys = array( 'fallback', 'namespaceNames',
  65                 'quickbarSettings', 'skinNames', 'mathNames',
  66                 'bookstoreList', 'magicWords', 'messages', 'rtl', 'digitTransformTable',
  67                 'separatorTransformTable', 'fallback8bitEncoding', 'linkPrefixExtension',
  68                 'defaultUserOptionOverrides', 'linkTrail', 'namespaceAliases',
  69                 'dateFormats', 'datePreferences', 'datePreferenceMigrationMap',
  70                 'defaultDateFormat', 'extraUserToggles' );
  71
  72         static public $mMergeableMapKeys = array( 'messages', 'namespaceNames', 'mathNames',
  73                 'dateFormats', 'defaultUserOptionOverrides', 'magicWords' );
  74
  75         static public $mMergeableListKeys = array( 'extraUserToggles' );
  76
  77         static public $mLocalisationCache = array();
  78
  79         static public $mWeekdayMsgs = array(
  80                 'sunday', 'monday', 'tuesday', 'wednesday', 'thursday',
  81                 'friday', 'saturday'
  82         );
  83
  84         static public $mWeekdayAbbrevMsgs = array(
  85                 'sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat'
  86         );
  87
  88         static public $mMonthMsgs = array(
  89                 'january', 'february', 'march', 'april', 'may_long', 'june',
  90                 'july', 'august', 'september', 'october', 'november',
  91                 'december'
  92         );
  93         static public $mMonthGenMsgs = array(
  94                 'january-gen', 'february-gen', 'march-gen', 'april-gen', 'may-gen', 'june-gen',
  95                 'july-gen', 'august-gen', 'september-gen', 'october-gen', 'november-gen',
  96                 'december-gen'
  97         );
  98         static public $mMonthAbbrevMsgs = array(
  99                 'jan', 'feb', 'mar', 'apr', 'may', 'jun', 'jul', 'aug',
 100                 'sep', 'oct', 'nov', 'dec'
 101         );
 102
 103         /**
 104          * Create a language object for a given language code
 105          */
 106         static function factory( $code ) {
 107                 global $IP;
 108                 static $recursionLevel = 0;
 109
 110                 if ( $code == 'en' ) {
 111                         $class = 'Language';
 112                 } else {
 113                         $class = 'Language' . str_replace( '-', '_', ucfirst( $code ) );
 114                         // Preload base classes to work around APC/PHP5 bug
 115                         if ( file_exists( "$IP/languages/$class.deps.php" ) ) {
 116                                 include_once("$IP/languages/$class.deps.php");
 117                         }
 118                         if ( file_exists( "$IP/languages/$class.php" ) ) {
 119                                 include_once("$IP/languages/$class.php");
 120                         }
 121                 }
 122
 123                 if ( $recursionLevel > 5 ) {
 124                         throw new MWException( "Language fallback loop detected when creating class $class\n" );
 125                 }
 126
 127                 if( ! class_exists( $class ) ) {
 128                         $fallback = Language::getFallbackFor( $code );
 129                         ++$recursionLevel;
 130                         $lang = Language::factory( $fallback );
 131                         --$recursionLevel;
 132                         $lang->setCode( $code );
 133                 } else {
 134                         $lang = new $class;
 135                 }
 136
 137                 return $lang;
 138         }
 139
 140         function __construct() {
 141                 $this->mConverter = new FakeConverter($this);
 142                 // Set the code to the name of the descendant
 143                 if ( get_class( $this ) == 'Language' ) {
 144                         $this->mCode = 'en';
 145                 } else {
 146                         $this->mCode = str_replace( '_', '-', strtolower( substr( get_class( $this ), 8 ) ) );
 147                 }
 148         }
 149
 150         /**
 151          * Hook which will be called if this is the content language.
 152          * Descendants can use this to register hook functions or modify globals
 153          */
 154         function initContLang() {}
 155
 156         /**
 157          * @deprecated
 158          * @return array
 159          */
 160         function getDefaultUserOptions() {
 161                 return User::getDefaultOptions();
 162         }
 163
 164         /**
 165          * Exports $wgBookstoreListEn
 166          * @return array
 167          */
 168         function getBookstoreList() {
 169                 $this->load();
 170                 return $this->bookstoreList;
 171         }
 172
 173         /**
 174          * @return array
 175          */
 176         function getNamespaces() {
 177                 $this->load();
 178                 return $this->namespaceNames;
 179         }
 180
 181         /**
 182          * A convenience function that returns the same thing as
 183          * getNamespaces() except with the array values changed to ' '
 184          * where it found '_', useful for producing output to be displayed
 185          * e.g. in <select> forms.
 186          *
 187          * @return array
 188          */
 189         function getFormattedNamespaces() {
 190                 $ns = $this->getNamespaces();
 191                 foreach($ns as $k => $v) {
 192                         $ns[$k] = strtr($v, '_', ' ');
 193                 }
 194                 return $ns;
 195         }
 196
 197         /**
 198          * Get a namespace value by key
 199          * <code>
 200          * $mw_ns = $wgContLang->getNsText( NS_MEDIAWIKI );
 201          * echo $mw_ns; // prints 'MediaWiki'
 202          * </code>
 203          *
 204          * @param int $index the array key of the namespace to return
 205          * @return mixed, string if the namespace value exists, otherwise false
 206          */
 207         function getNsText( $index ) {
 208                 $ns = $this->getNamespaces();
 209                 return isset( $ns[$index] ) ? $ns[$index] : false;
 210         }
 211
 212         /**
 213          * A convenience function that returns the same thing as
 214          * getNsText() except with '_' changed to ' ', useful for
 215          * producing output.
 216          *
 217          * @return array
 218          */
 219         function getFormattedNsText( $index ) {
 220                 $ns = $this->getNsText( $index );
 221                 return strtr($ns, '_', ' ');
 222         }
 223
 224         /**
 225          * Get a namespace key by value, case insensetive.
 226          *
 227          * @param string $text
 228          * @return mixed An integer if $text is a valid value otherwise false
 229          */
 230         function getNsIndex( $text ) {
 231                 $this->load();
 232                 $index = @$this->mNamespaceIds[$this->lc($text)];
 233                 if ( is_null( $index ) ) {
 234                         return false;
 235                 } else {
 236                         return $index;
 237                 }
 238         }
 239
 240         /**
 241          * short names for language variants used for language conversion links.
 242          *
 243          * @param string $code
 244          * @return string
 245          */
 246         function getVariantname( $code ) {
 247                 return $this->getMessageFromDB( "variantname-$code" );
 248         }
 249
 250         function specialPage( $name ) {
 251                 return $this->getNsText(NS_SPECIAL) . ':' . $name;
 252         }
 253
 254         function getQuickbarSettings() {
 255                 $this->load();
 256                 return $this->quickbarSettings;
 257         }
 258
 259         function getSkinNames() {
 260                 $this->load();
 261                 return $this->skinNames;
 262         }
 263
 264         function getMathNames() {
 265                 $this->load();
 266                 return $this->mathNames;
 267         }
 268
 269         function getDatePreferences() {
 270                 $this->load();
 271                 return $this->datePreferences;
 272         }
 273
 274         function getDateFormats() {
 275                 $this->load();
 276                 return $this->dateFormats;
 277         }
 278
 279         function getDatePreferenceMigrationMap() {
 280                 $this->load();
 281                 return $this->datePreferenceMigrationMap;
 282         }
 283
 284         function getDefaultUserOptionOverrides() {
 285                 $this->load();
 286                 return $this->defaultUserOptionOverrides;
 287         }
 288
 289         function getExtraUserToggles() {
 290                 $this->load();
 291                 return $this->extraUserToggles;
 292         }
 293
 294         function getUserToggle( $tog ) {
 295                 return $this->getMessageFromDB( "tog-$tog" );
 296         }
 297
 298         /**
 299          * Get language names, indexed by code.
 300          * If $customisedOnly is true, only returns codes with a messages file
 301          */
 302         function getLanguageNames( $customisedOnly = false ) {
 303                 global $wgLanguageNames;
 304                 if ( !$customisedOnly ) {
 305                         return $wgLanguageNames;
 306                 }
 307
 308                 global $IP;
 309                 $messageFiles = glob( "$IP/languages/Messages*.php" );
 310                 $names = array();
 311                 foreach ( $messageFiles as $file ) {
 312                         if( preg_match( '/Messages([A-Z][a-z_]+)\.php$/', $file, $m ) ) {
 313                                 $code = str_replace( '_', '-', strtolower( $m[1] ) );
 314                                 if ( isset( $wgLanguageNames[$code] ) ) {
 315                                         $names[$code] = $wgLanguageNames[$code];
 316                                 }
 317                         }
 318                 }
 319                 return $names;
 320         }
 321
 322         /**
 323          * Ugly hack to get a message maybe from the MediaWiki namespace, if this
 324          * language object is the content or user language.
 325          */
 326         function getMessageFromDB( $msg ) {
 327                 global $wgContLang, $wgLang;
 328                 if ( $wgContLang->getCode() == $this->getCode() ) {
 329                         # Content language
 330                         return wfMsgForContent( $msg );
 331                 } elseif ( $wgLang->getCode() == $this->getCode() ) {
 332                         # User language
 333                         return wfMsg( $msg );
 334                 } else {
 335                         # Neither, get from localisation
 336                         return $this->getMessage( $msg );
 337                 }
 338         }
 339
 340         function getLanguageName( $code ) {
 341                 global $wgLanguageNames;
 342                 if ( ! array_key_exists( $code, $wgLanguageNames ) ) {
 343                         return '';
 344                 }
 345                 return $wgLanguageNames[$code];
 346         }
 347
 348         function getMonthName( $key ) {
 349                 return $this->getMessageFromDB( self::$mMonthMsgs[$key-1] );
 350         }
 351
 352         function getMonthNameGen( $key ) {
 353                 return $this->getMessageFromDB( self::$mMonthGenMsgs[$key-1] );
 354         }
 355
 356         function getMonthAbbreviation( $key ) {
 357                 return $this->getMessageFromDB( self::$mMonthAbbrevMsgs[$key-1] );
 358         }
 359
 360         function getWeekdayName( $key ) {
 361                 return $this->getMessageFromDB( self::$mWeekdayMsgs[$key-1] );
 362         }
 363
 364         function getWeekdayAbbreviation( $key ) {
 365                 return $this->getMessageFromDB( self::$mWeekdayAbbrevMsgs[$key-1] );
 366         }
 367
 368         /**
 369          * Used by date() and time() to adjust the time output.
 370          * @public
 371          * @param int   $ts the time in date('YmdHis') format
 372          * @param mixed $tz adjust the time by this amount (default false,
 373          *                  mean we get user timecorrection setting)
 374          * @return int
 375          */
 376         function userAdjust( $ts, $tz = false ) {
 377                 global $wgUser, $wgLocalTZoffset;
 378
 379                 if (!$tz) {
 380                         $tz = $wgUser->getOption( 'timecorrection' );
 381                 }
 382
 383                 # minutes and hours differences:
 384                 $minDiff = 0;
 385                 $hrDiff  = 0;
 386
 387                 if ( $tz === '' ) {
 388                         # Global offset in minutes.
 389                         if( isset($wgLocalTZoffset) ) {
 390                                 $hrDiff = $wgLocalTZoffset % 60;
 391                                 $minDiff = $wgLocalTZoffset - ($hrDiff * 60);
 392                         }
 393                 } elseif ( strpos( $tz, ':' ) !== false ) {
 394                         $tzArray = explode( ':', $tz );
 395                         $hrDiff = intval($tzArray[0]);
 396                         $minDiff = intval($hrDiff < 0 ? -$tzArray[1] : $tzArray[1]);
 397                 } else {
 398                         $hrDiff = intval( $tz );
 399                 }
 400
 401                 # No difference ? Return time unchanged
 402                 if ( 0 == $hrDiff && 0 == $minDiff ) { return $ts; }
 403
 404                 # Generate an adjusted date
 405                 $t = mktime( (
 406                   (int)substr( $ts, 8, 2) ) + $hrDiff, # Hours
 407                   (int)substr( $ts, 10, 2 ) + $minDiff, # Minutes
 408                   (int)substr( $ts, 12, 2 ), # Seconds
 409                   (int)substr( $ts, 4, 2 ), # Month
 410                   (int)substr( $ts, 6, 2 ), # Day
 411                   (int)substr( $ts, 0, 4 ) ); #Year
 412                 return date( 'YmdHis', $t );
 413         }
 414
 415         /**
 416          * This is a workalike of PHP's date() function, but with better
 417          * internationalisation, a reduced set of format characters, and a better
 418          * escaping format.
 419          *
 420          * Supported format characters are dDjlFmMnYyHis. See the PHP manual for
 421          * definitions. There are a number of extensions, which start with "x":
 422          *
 423          *    xn   Do not translate digits of the next numeric format character
 424          *    xr   Use roman numerals for the next numeric format character
 425          *    xx   Literal x
 426          *    xg   Genitive month name
 427          *
 428          * Characters enclosed in double quotes will be considered literal (with
 429          * the quotes themselves removed). Unmatched quotes will be considered
 430          * literal quotes. Example:
 431          *
 432          * "The month is" F       => The month is January
 433          * i's"                   => 20'11"
 434          *
 435          * Backslash escaping is also supported.
 436          *
 437          * @param string $format
 438          * @param string $ts 14-character timestamp
 439          *      YYYYMMDDHHMMSS
 440          *      01234567890123
 441          */
 442         function sprintfDate( $format, $ts ) {
 443                 $s = '';
 444                 $raw = false;
 445                 $roman = false;
 446                 for ( $p = 0; $p < strlen( $format ); $p++ ) {
 447                         $num = false;
 448                         $code = $format[$p];
 449                         if ( $code == 'x' && $p < strlen( $format ) - 1 ) {
 450                                 $code .= $format[++$p];
 451                         }
 452
 453                         switch ( $code ) {
 454                                 case 'xx':
 455                                         $s .= 'x';
 456                                         break;
 457                                 case 'xn':
 458                                         $raw = true;
 459                                         break;
 460                                 case 'xr':
 461                                         $roman = true;
 462                                         break;
 463                                 case 'xg':
 464                                         $s .= $this->getMonthNameGen( substr( $ts, 4, 2 ) );
 465                                         break;
 466                                 case 'd':
 467                                         $num = substr( $ts, 6, 2 );
 468                                         break;
 469                                 case 'D':
 470                                         $s .= $this->getWeekdayAbbreviation( self::calculateWeekday( $ts ) );
 471                                         break;
 472                                 case 'j':
 473                                         $num = intval( substr( $ts, 6, 2 ) );
 474                                         break;
 475                                 case 'l':
 476                                         $s .= $this->getWeekdayName( self::calculateWeekday( $ts ) );
 477                                         break;
 478                                 case 'F':
 479                                         $s .= $this->getMonthName( substr( $ts, 4, 2 ) );
 480                                         break;
 481                                 case 'm':
 482                                         $num = substr( $ts, 4, 2 );
 483                                         break;
 484                                 case 'M':
 485                                         $s .= $this->getMonthAbbreviation( substr( $ts, 4, 2 ) );
 486                                         break;
 487                                 case 'n':
 488                                         $num = intval( substr( $ts, 4, 2 ) );
 489                                         break;
 490                                 case 'Y':
 491                                         $num = substr( $ts, 0, 4 );
 492                                         break;
 493                                 case 'y':
 494                                         $num = substr( $ts, 2, 2 );
 495                                         break;
 496                                 case 'H':
 497                                         $num = substr( $ts, 8, 2 );
 498                                         break;
 499                                 case 'G':
 500                                         $num = intval( substr( $ts, 8, 2 ) );
 501                                         break;
 502                                 case 'i':
 503                                         $num = substr( $ts, 10, 2 );
 504                                         break;
 505                                 case 's':
 506                                         $num = substr( $ts, 12, 2 );
 507                                         break;
 508                                 case '\\':
 509                                         # Backslash escaping
 510                                         if ( $p < strlen( $format ) - 1 ) {
 511                                                 $s .= $format[++$p];
 512                                         } else {
 513                                                 $s .= '\\';
 514                                         }
 515                                         break;
 516                                 case '"':
 517                                         # Quoted literal
 518                                         if ( $p < strlen( $format ) - 1 ) {
 519                                                 $endQuote = strpos( $format, '"', $p + 1 );
 520                                                 if ( $endQuote === false ) {
 521                                                         # No terminating quote, assume literal "
 522                                                         $s .= '"';
 523                                                 } else {
 524                                                         $s .= substr( $format, $p + 1, $endQuote - $p - 1 );
 525                                                         $p = $endQuote;
 526                                                 }
 527                                         } else {
 528                                                 # Quote at end of string, assume literal "
 529                                                 $s .= '"';
 530                                         }
 531                                         break;
 532                                 default:
 533                                         $s .= $format[$p];
 534                         }
 535                         if ( $num !== false ) {
 536                                 if ( $raw ) {
 537                                         $s .= $num;
 538                                         $raw = false;
 539                                 } elseif ( $roman ) {
 540                                         $s .= Language::romanNumeral( $num );
 541                                         $roman = false;
 542                                 } else {
 543                                         $s .= $this->formatNum( $num, true );
 544                                 }
 545                                 $num = false;
 546                         }
 547                 }
 548                 return $s;
 549         }
 550
 551         /**
 552          * Roman number formatting up to 100
 553          */
 554         static function romanNumeral( $num ) {
 555                 static $units = array( 0, 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX', 'X' );
 556                 static $decades = array( 0, 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC', 'C' );
 557                 $num = intval( $num );
 558                 if ( $num > 100 || $num <= 0 ) {
 559                         return $num;
 560                 }
 561                 $s = '';
 562                 if ( $num >= 10 ) {
 563                         $s .= $decades[floor( $num / 10 )];
 564                         $num = $num % 10;
 565                 }
 566                 if ( $num >= 1 ) {
 567                         $s .= $units[$num];
 568                 }
 569                 return $s;
 570         }
 571
 572         /**
 573          * Calculate the day of the week for a 14-character timestamp
 574          * 1 for Sunday through to 7 for Saturday
 575          * This takes about 100us on a slow computer
 576          */
 577         static function calculateWeekday( $ts ) {
 578                 return date( 'w', wfTimestamp( TS_UNIX, $ts ) ) + 1;
 579         }
 580
 581         /**
 582          * This is meant to be used by time(), date(), and timeanddate() to get
 583          * the date preference they're supposed to use, it should be used in
 584          * all children.
 585          *
 586          *<code>
 587          * function timeanddate([...], $format = true) {
 588          *      $datePreference = $this->dateFormat($format);
 589          * [...]
 590          * }
 591          *</code>
 592          *
 593          * @param mixed $usePrefs: if true, the user's preference is used
 594          *                         if false, the site/language default is used
 595          *                         if int/string, assumed to be a format.
 596          * @return string
 597          */
 598         function dateFormat( $usePrefs = true ) {
 599                 global $wgUser;
 600
 601                 if( is_bool( $usePrefs ) ) {
 602                         if( $usePrefs ) {
 603                                 $datePreference = $wgUser->getDatePreference();
 604                         } else {
 605                                 $options = User::getDefaultOptions();
 606                                 $datePreference = (string)$options['date'];
 607                         }
 608                 } else {
 609                         $datePreference = (string)$usePrefs;
 610                 }
 611
 612                 // return int
 613                 if( $datePreference == '' ) {
 614                         return 'default';
 615                 }
 616
 617                 return $datePreference;
 618         }
 619
 620         /**
 621          * @public
 622          * @param mixed  $ts the time format which needs to be turned into a
 623          *               date('YmdHis') format with wfTimestamp(TS_MW,$ts)
 624          * @param bool   $adj whether to adjust the time output according to the
 625          *               user configured offset ($timecorrection)
 626          * @param mixed  $format true to use user's date format preference
 627          * @param string $timecorrection the time offset as returned by
 628          *               validateTimeZone() in Special:Preferences
 629          * @return string
 630          */
 631         function date( $ts, $adj = false, $format = true, $timecorrection = false ) {
 632                 $this->load();
 633                 if ( $adj ) {
 634                         $ts = $this->userAdjust( $ts, $timecorrection );
 635                 }
 636
 637                 $pref = $this->dateFormat( $format );
 638                 if( $pref == 'default' || !isset( $this->dateFormats["$pref date"] ) ) {
 639                         $pref = $this->defaultDateFormat;
 640                 }
 641                 return $this->sprintfDate( $this->dateFormats["$pref date"], $ts );
 642         }
 643
 644         /**
 645         * @public
 646         * @param mixed  $ts the time format which needs to be turned into a
 647         *               date('YmdHis') format with wfTimestamp(TS_MW,$ts)
 648         * @param bool   $adj whether to adjust the time output according to the
 649         *               user configured offset ($timecorrection)
 650         * @param mixed  $format true to use user's date format preference
 651         * @param string $timecorrection the time offset as returned by
 652         *               validateTimeZone() in Special:Preferences
 653         * @return string
 654         */
 655         function time( $ts, $adj = false, $format = true, $timecorrection = false ) {
 656                 $this->load();
 657                 if ( $adj ) {
 658                         $ts = $this->userAdjust( $ts, $timecorrection );
 659                 }
 660
 661                 $pref = $this->dateFormat( $format );
 662                 if( $pref == 'default' || !isset( $this->dateFormats["$pref time"] ) ) {
 663                         $pref = $this->defaultDateFormat;
 664                 }
 665                 return $this->sprintfDate( $this->dateFormats["$pref time"], $ts );
 666         }
 667
 668         /**
 669         * @public
 670         * @param mixed  $ts the time format which needs to be turned into a
 671         *               date('YmdHis') format with wfTimestamp(TS_MW,$ts)
 672         * @param bool   $adj whether to adjust the time output according to the
 673         *               user configured offset ($timecorrection)
 674
 675         * @param mixed  $format what format to return, if it's false output the
 676         *               default one (default true)
 677         * @param string $timecorrection the time offset as returned by
 678         *               validateTimeZone() in Special:Preferences
 679         * @return string
 680         */
 681         function timeanddate( $ts, $adj = false, $format = true, $timecorrection = false) {
 682                 $this->load();
 683                 if ( $adj ) {
 684                         $ts = $this->userAdjust( $ts, $timecorrection );
 685                 }
 686
 687                 $pref = $this->dateFormat( $format );
 688                 if( $pref == 'default' || !isset( $this->dateFormats["$pref both"] ) ) {
 689                         $pref = $this->defaultDateFormat;
 690                 }
 691
 692                 return $this->sprintfDate( $this->dateFormats["$pref both"], $ts );
 693         }
 694
 695         function getMessage( $key ) {
 696                 $this->load();
 697                 return @$this->messages[$key];
 698         }
 699
 700         function getAllMessages() {
 701                 $this->load();
 702                 return $this->messages;
 703         }
 704
 705         function iconv( $in, $out, $string ) {
 706                 # For most languages, this is a wrapper for iconv
 707                 return iconv( $in, $out, $string );
 708         }
 709
 710         function ucfirst( $str ) {
 711                 return self::uc( $str, true );
 712         }
 713
 714         function uc( $str, $first = false ) {
 715                 if ( function_exists( 'mb_strtoupper' ) )
 716                         if ( $first )
 717                                 if ( self::isMultibyte( $str ) )
 718                                         return mb_strtoupper( mb_substr( $str, 0, 1 ) ) . mb_substr( $str, 1 );
 719                                 else
 720                                         return ucfirst( $str );
 721                         else
 722                                 return self::isMultibyte( $str ) ? mb_strtoupper( $str ) : strtoupper( $str );
 723                 else
 724                         if ( self::isMultibyte( $str ) ) {
 725                                 list( $wikiUpperChars ) = $this->getCaseMaps();
 726                                 $x = $first ? '^' : '';
 727                                 return preg_replace(
 728                                         "/$x([a-z]|[\\xc0-\\xff][\\x80-\\xbf]*)/e",
 729                                         "strtr( \"\$1\" , \$wikiUpperChars )",
 730                                         $str
 731                                 );
 732                         } else
 733                                 return $first ? ucfirst( $str ) : strtoupper( $str );
 734         }
 735
 736         function lcfirst( $str ) {
 737                 return self::lc( $str, true );
 738         }
 739
 740         function lc( $str, $first = false ) {
 741                 if ( function_exists( 'mb_strtolower' ) )
 742                         if ( $first )
 743                                 if ( self::isMultibyte( $str ) )
 744                                         return mb_strtolower( mb_substr( $str, 0, 1 ) ) . mb_substr( $str, 1 );
 745                                 else
 746                                         return strtolower( substr( $str, 0, 1 ) ) . substr( $str, 1 );
 747                         else
 748                                 return self::isMultibyte( $str ) ? mb_strtolower( $str ) : strtolower( $str );
 749                 else
 750                         if ( self::isMultibyte( $str ) ) {
 751                                 list( , $wikiLowerChars ) = self::getCaseMaps();
 752                                 $x = $first ? '^' : '';
 753                                 return preg_replace(
 754                                         "/$x([A-Z]|[\\xc0-\\xff][\\x80-\\xbf]*)/e",
 755                                         "strtr( \"\$1\" , \$wikiLowerChars )",
 756                                         $str
 757                                 );
 758                         } else
 759                                 return $first ? strtolower( substr( $str, 0, 1 ) ) . substr( $str, 1 ) : strtolower( $str );
 760         }
 761
 762         function isMultibyte( $str ) {
 763                 return (bool)preg_match( '/^[\x80-\xff]/', $str );
 764         }
 765
 766         function checkTitleEncoding( $s ) {
 767                 if( is_array( $s ) ) {
 768                         wfDebugDieBacktrace( 'Given array to checkTitleEncoding.' );
 769                 }
 770                 # Check for non-UTF-8 URLs
 771                 $ishigh = preg_match( '/[\x80-\xff]/', $s);
 772                 if(!$ishigh) return $s;
 773
 774                 $isutf8 = preg_match( '/^([\x00-\x7f]|[\xc0-\xdf][\x80-\xbf]|' .
 775                 '[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xf7][\x80-\xbf]{3})+$/', $s );
 776                 if( $isutf8 ) return $s;
 777
 778                 return $this->iconv( $this->fallback8bitEncoding(), "utf-8", $s );
 779         }
 780
 781         function fallback8bitEncoding() {
 782                 $this->load();
 783                 return $this->fallback8bitEncoding;
 784         }
 785
 786         /**
 787          * Some languages have special punctuation to strip out
 788          * or characters which need to be converted for MySQL's
 789          * indexing to grok it correctly. Make such changes here.
 790          *
 791          * @param string $in
 792          * @return string
 793          */
 794         function stripForSearch( $string ) {
 795                 # MySQL fulltext index doesn't grok utf-8, so we
 796                 # need to fold cases and convert to hex
 797
 798                 wfProfileIn( __METHOD__ );
 799                 if( function_exists( 'mb_strtolower' ) ) {
 800                         $out = preg_replace(
 801                                 "/([\\xc0-\\xff][\\x80-\\xbf]*)/e",
 802                                 "'U8' . bin2hex( \"$1\" )",
 803                                 mb_strtolower( $string ) );
 804                 } else {
 805                         list( , $wikiLowerChars ) = self::getCaseMaps();
 806                         $out = preg_replace(
 807                                 "/([\\xc0-\\xff][\\x80-\\xbf]*)/e",
 808                                 "'U8' . bin2hex( strtr( \"\$1\", \$wikiLowerChars ) )",
 809                                 $string );
 810                 }
 811                 wfProfileOut( __METHOD__ );
 812                 return $out;
 813         }
 814
 815         function convertForSearchResult( $termsArray ) {
 816                 # some languages, e.g. Chinese, need to do a conversion
 817                 # in order for search results to be displayed correctly
 818                 return $termsArray;
 819         }
 820
 821         /**
 822          * Get the first character of a string.
 823          *
 824          * @param string $s
 825          * @return string
 826          */
 827         function firstChar( $s ) {
 828                 preg_match( '/^([\x00-\x7f]|[\xc0-\xdf][\x80-\xbf]|' .
 829                 '[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xf7][\x80-\xbf]{3})/', $s, $matches);
 830
 831                 return isset( $matches[1] ) ? $matches[1] : "";
 832         }
 833
 834         function initEncoding() {
 835                 # Some languages may have an alternate char encoding option
 836                 # (Esperanto X-coding, Japanese furigana conversion, etc)
 837                 # If this language is used as the primary content language,
 838                 # an override to the defaults can be set here on startup.
 839         }
 840
 841         function recodeForEdit( $s ) {
 842                 # For some languages we'll want to explicitly specify
 843                 # which characters make it into the edit box raw
 844                 # or are converted in some way or another.
 845                 # Note that if wgOutputEncoding is different from
 846                 # wgInputEncoding, this text will be further converted
 847                 # to wgOutputEncoding.
 848                 global $wgEditEncoding;
 849                 if( $wgEditEncoding == '' or
 850                   $wgEditEncoding == 'UTF-8' ) {
 851                         return $s;
 852                 } else {
 853                         return $this->iconv( 'UTF-8', $wgEditEncoding, $s );
 854                 }
 855         }
 856
 857         function recodeInput( $s ) {
 858                 # Take the previous into account.
 859                 global $wgEditEncoding;
 860                 if($wgEditEncoding != "") {
 861                         $enc = $wgEditEncoding;
 862                 } else {
 863                         $enc = 'UTF-8';
 864                 }
 865                 if( $enc == 'UTF-8' ) {
 866                         return $s;
 867                 } else {
 868                         return $this->iconv( $enc, 'UTF-8', $s );
 869                 }
 870         }
 871
 872         /**
 873          * For right-to-left language support
 874          *
 875          * @return bool
 876          */
 877         function isRTL() {
 878                 $this->load();
 879                 return $this->rtl;
 880         }
 881
 882         /**
 883          * A hidden direction mark (LRM or RLM), depending on the language direction
 884          *
 885          * @return string
 886          */
 887         function getDirMark() {
 888                 return $this->isRTL() ? "\xE2\x80\x8F" : "\xE2\x80\x8E";
 889         }
 890
 891         /**
 892          * An arrow, depending on the language direction
 893          *
 894          * @return string
 895          */
 896         function getArrow() {
 897                 return $this->isRTL() ? '←' : '→';
 898         }
 899
 900         /**
 901          * To allow "foo[[bar]]" to extend the link over the whole word "foobar"
 902          *
 903          * @return bool
 904          */
 905         function linkPrefixExtension() {
 906                 $this->load();
 907                 return $this->linkPrefixExtension;
 908         }
 909
 910         function &getMagicWords() {
 911                 $this->load();
 912                 return $this->magicWords;
 913         }
 914
 915         # Fill a MagicWord object with data from here
 916         function getMagic( &$mw ) {
 917                 if ( !isset( $this->mMagicExtensions ) ) {
 918                         $this->mMagicExtensions = array();
 919                         wfRunHooks( 'LanguageGetMagic', array( &$this->mMagicExtensions, $this->getCode() ) );
 920                 }
 921                 if ( isset( $this->mMagicExtensions[$mw->mId] ) ) {
 922                         $rawEntry = $this->mMagicExtensions[$mw->mId];
 923                 } else {
 924                         $magicWords =& $this->getMagicWords();
 925                         if ( isset( $magicWords[$mw->mId] ) ) {
 926                                 $rawEntry = $magicWords[$mw->mId];
 927                         } else {
 928                                 # Fall back to English if local list is incomplete
 929                                 $magicWords =& Language::getMagicWords();
 930                                 $rawEntry = $magicWords[$mw->mId];
 931                         }
 932                 }
 933
 934                 $mw->mCaseSensitive = $rawEntry[0];
 935                 $mw->mSynonyms = array_slice( $rawEntry, 1 );
 936         }
 937
 938         /**
 939          * Italic is unsuitable for some languages
 940          *
 941          * @public
 942          *
 943          * @param string $text The text to be emphasized.
 944          * @return string
 945          */
 946         function emphasize( $text ) {
 947                 return "<em>$text</em>";
 948         }
 949
 950          /**
 951          * Normally we output all numbers in plain en_US style, that is
 952          * 293,291.235 for twohundredninetythreethousand-twohundredninetyone
 953          * point twohundredthirtyfive. However this is not sutable for all
 954          * languages, some such as Pakaran want ੨੯੩,੨੯੫.੨੩੫ and others such as
 955          * Icelandic just want to use commas instead of dots, and dots instead
 956          * of commas like "293.291,235".
 957          *
 958          * An example of this function being called:
 959          * <code>
 960          * wfMsg( 'message', $wgLang->formatNum( $num ) )
 961          * </code>
 962          *
 963          * See LanguageGu.php for the Gujarati implementation and
 964          * LanguageIs.php for the , => . and . => , implementation.
 965          *
 966          * @todo check if it's viable to use localeconv() for the decimal
 967          *       seperator thing.
 968          * @public
 969          * @param mixed $number the string to be formatted, should be an integer or
 970          *        a floating point number.
 971          * @param bool $nocommafy Set to true for special numbers like dates
 972          * @return string
 973          */
 974         function formatNum( $number, $nocommafy = false ) {
 975                 global $wgTranslateNumerals;
 976                 if (!$nocommafy) {
 977                         $number = $this->commafy($number);
 978                         $s = $this->separatorTransformTable();
 979                         if (!is_null($s)) { $number = strtr($number, $s); }
 980                 }
 981
 982                 if ($wgTranslateNumerals) {
 983                         $s = $this->digitTransformTable();
 984                         if (!is_null($s)) { $number = strtr($number, $s); }
 985                 }
 986
 987                 return $number;
 988         }
 989
 990         /**
 991          * Adds commas to a given number
 992          *
 993          * @param mixed $_
 994          * @return string
 995          */
 996         function commafy($_) {
 997                 return strrev((string)preg_replace('/(\d{3})(?=\d)(?!\d*\.)/','$1,',strrev($_)));
 998         }
 999
1000         function digitTransformTable() {
1001                 $this->load();
1002                 return $this->digitTransformTable;
1003         }
1004
1005         function separatorTransformTable() {
1006                 $this->load();
1007                 return $this->separatorTransformTable;
1008         }
1009
1010
1011         /**
1012          * For the credit list in includes/Credits.php (action=credits)
1013          *
1014          * @param array $l
1015          * @return string
1016          */
1017         function listToText( $l ) {
1018                 $s = '';
1019                 $m = count($l) - 1;
1020                 for ($i = $m; $i >= 0; $i--) {
1021                         if ($i == $m) {
1022                                 $s = $l[$i];
1023                         } else if ($i == $m - 1) {
1024                                 $s = $l[$i] . ' ' . $this->getMessageFromDB( 'and' ) . ' ' . $s;
1025                         } else {
1026                                 $s = $l[$i] . ', ' . $s;
1027                         }
1028                 }
1029                 return $s;
1030         }
1031
1032         # Crop a string from the beginning or end to a certain number of bytes.
1033         # (Bytes are used because our storage has limited byte lengths for some
1034         # columns in the database.) Multibyte charsets will need to make sure that
1035         # only whole characters are included!
1036         #
1037         # $length does not include the optional ellipsis.
1038         # If $length is negative, snip from the beginning
1039         function truncate( $string, $length, $ellipsis = "" ) {
1040                 if( $length == 0 ) {
1041                         return $ellipsis;
1042                 }
1043                 if ( strlen( $string ) <= abs( $length ) ) {
1044                         return $string;
1045                 }
1046                 if( $length > 0 ) {
1047                         $string = substr( $string, 0, $length );
1048                         $char = ord( $string[strlen( $string ) - 1] );
1049                         if ($char >= 0xc0) {
1050                                 # We got the first byte only of a multibyte char; remove it.
1051                                 $string = substr( $string, 0, -1 );
1052                         } elseif( $char >= 0x80 &&
1053                                   preg_match( '/^(.*)(?:[\xe0-\xef][\x80-\xbf]|' .
1054                                               '[\xf0-\xf7][\x80-\xbf]{1,2})$/', $string, $m ) ) {
1055                             # We chopped in the middle of a character; remove it
1056                                 $string = $m[1];
1057                         }
1058                         return $string . $ellipsis;
1059                 } else {
1060                         $string = substr( $string, $length );
1061                         $char = ord( $string[0] );
1062                         if( $char >= 0x80 && $char < 0xc0 ) {
1063                                 # We chopped in the middle of a character; remove the whole thing
1064                                 $string = preg_replace( '/^[\x80-\xbf]+/', '', $string );
1065                         }
1066                         return $ellipsis . $string;
1067                 }
1068         }
1069
1070         /**
1071          * Grammatical transformations, needed for inflected languages
1072          * Invoked by putting {{grammar:case|word}} in a message
1073          *
1074          * @param string $word
1075          * @param string $case
1076          * @return string
1077          */
1078         function convertGrammar( $word, $case ) {
1079                 global $wgGrammarForms;
1080                 if ( isset($wgGrammarForms['en'][$case][$word]) ) {
1081                         return $wgGrammarForms['en'][$case][$word];
1082                 }
1083                 return $word;
1084         }
1085
1086         /**
1087          * Plural form transformations, needed for some languages.
1088          * For example, where are 3 form of plural in Russian and Polish,
1089          * depending on "count mod 10". See [[w:Plural]]
1090          * For English it is pretty simple.
1091          *
1092          * Invoked by putting {{plural:count|wordform1|wordform2}}
1093          * or {{plural:count|wordform1|wordform2|wordform3}}
1094          *
1095          * Example: {{plural:{{NUMBEROFARTICLES}}|article|articles}}
1096          *
1097          * @param integer $count
1098          * @param string $wordform1
1099          * @param string $wordform2
1100          * @param string $wordform3 (optional)
1101          * @return string
1102          */
1103         function convertPlural( $count, $w1, $w2, $w3) {
1104                 return $count == '1' ? $w1 : $w2;
1105         }
1106
1107         /**
1108          * For translaing of expiry times
1109          * @param string The validated block time in English
1110          * @return Somehow translated block time
1111          * @see LanguageFi.php for example implementation
1112          */
1113         function translateBlockExpiry( $str ) {
1114
1115                 $scBlockExpiryOptions = $this->getMessageFromDB( 'ipboptions' );
1116
1117                 if ( $scBlockExpiryOptions == '-') {
1118                         return $str;
1119                 }
1120
1121                 foreach (explode(',', $scBlockExpiryOptions) as $option) {
1122                         if ( strpos($option, ":") === false )
1123                                 continue;
1124                         list($show, $value) = explode(":", $option);
1125                         if ( strcmp ( $str, $value) == 0 )
1126                                 return '<span title="' . htmlspecialchars($str). '">' .
1127                                         htmlspecialchars( trim( $show ) ) . '</span>';
1128                 }
1129
1130                 return $str;
1131         }
1132
1133         /**
1134          * languages like Chinese need to be segmented in order for the diff
1135          * to be of any use
1136          *
1137          * @param string $text
1138          * @return string
1139          */
1140         function segmentForDiff( $text ) {
1141                 return $text;
1142         }
1143
1144         /**
1145          * and unsegment to show the result
1146          *
1147          * @param string $text
1148          * @return string
1149          */
1150         function unsegmentForDiff( $text ) {
1151                 return $text;
1152         }
1153
1154         # convert text to different variants of a language.
1155         function convert( $text, $isTitle = false) {
1156                 return $this->mConverter->convert($text, $isTitle);
1157         }
1158
1159         # Convert text from within Parser
1160         function parserConvert( $text, &$parser ) {
1161                 return $this->mConverter->parserConvert( $text, $parser );
1162         }
1163
1164         /**
1165          * Perform output conversion on a string, and encode for safe HTML output.
1166          * @param string $text
1167          * @param bool $isTitle -- wtf?
1168          * @return string
1169          * @todo this should get integrated somewhere sane
1170          */
1171         function convertHtml( $text, $isTitle = false ) {
1172                 return htmlspecialchars( $this->convert( $text, $isTitle ) );
1173         }
1174
1175         function convertCategoryKey( $key ) {
1176                 return $this->mConverter->convertCategoryKey( $key );
1177         }
1178
1179         /**
1180          * get the list of variants supported by this langauge
1181          * see sample implementation in LanguageZh.php
1182          *
1183          * @return array an array of language codes
1184          */
1185         function getVariants() {
1186                 return $this->mConverter->getVariants();
1187         }
1188
1189
1190         function getPreferredVariant( $fromUser = true ) {
1191                 return $this->mConverter->getPreferredVariant( $fromUser );
1192         }
1193
1194         /**
1195          * if a language supports multiple variants, it is
1196          * possible that non-existing link in one variant
1197          * actually exists in another variant. this function
1198          * tries to find it. See e.g. LanguageZh.php
1199          *
1200          * @param string $link the name of the link
1201          * @param mixed $nt the title object of the link
1202          * @return null the input parameters may be modified upon return
1203          */
1204         function findVariantLink( &$link, &$nt ) {
1205                 $this->mConverter->findVariantLink($link, $nt);
1206         }
1207
1208         /**
1209          * returns language specific options used by User::getPageRenderHash()
1210          * for example, the preferred language variant
1211          *
1212          * @return string
1213          * @public
1214          */
1215         function getExtraHashOptions() {
1216                 return $this->mConverter->getExtraHashOptions();
1217         }
1218
1219         /**
1220          * for languages that support multiple variants, the title of an
1221          * article may be displayed differently in different variants. this
1222          * function returns the apporiate title defined in the body of the article.
1223          *
1224          * @return string
1225          */
1226         function getParsedTitle() {
1227                 return $this->mConverter->getParsedTitle();
1228         }
1229
1230         /**
1231          * Enclose a string with the "no conversion" tag. This is used by
1232          * various functions in the Parser
1233          *
1234          * @param string $text text to be tagged for no conversion
1235          * @return string the tagged text
1236         */
1237         function markNoConversion( $text ) {
1238                 return $this->mConverter->markNoConversion( $text );
1239         }
1240
1241         /**
1242          * A regular expression to match legal word-trailing characters
1243          * which should be merged onto a link of the form [[foo]]bar.
1244          *
1245          * @return string
1246          * @public
1247          */
1248         function linkTrail() {
1249                 $this->load();
1250                 return $this->linkTrail;
1251         }
1252
1253         function getLangObj() {
1254                 return $this;
1255         }
1256
1257         /**
1258          * Get the RFC 3066 code for this language object
1259          */
1260         function getCode() {
1261                 return $this->mCode;
1262         }
1263
1264         function setCode( $code ) {
1265                 $this->mCode = $code;
1266         }
1267
1268         static function getFileName( $prefix = 'Language', $code, $suffix = '.php' ) {
1269                 return $prefix . str_replace( '-', '_', ucfirst( $code ) ) . $suffix;
1270         }
1271
1272         static function getLocalisationArray( $code, $disableCache = false ) {
1273                 self::loadLocalisation( $code, $disableCache );
1274                 return self::$mLocalisationCache[$code];
1275         }
1276
1277         /**
1278          * Load localisation data for a given code into the static cache
1279          *
1280          * @return array Dependencies, map of filenames to mtimes
1281          */
1282         static function loadLocalisation( $code, $disableCache = false ) {
1283                 static $recursionGuard = array();
1284                 global $wgMemc, $wgDBname, $IP;
1285
1286                 if ( !$code ) {
1287                         throw new MWException( "Invalid language code requested" );
1288                 }
1289
1290                 if ( !$disableCache ) {
1291                         # Try the per-process cache
1292                         if ( isset( self::$mLocalisationCache[$code] ) ) {
1293                                 return self::$mLocalisationCache[$code]['deps'];
1294                         }
1295
1296                         wfProfileIn( __METHOD__ );
1297
1298                         # Try the serialized directory
1299                         $cache = wfGetPrecompiledData( self::getFileName( "Messages", $code, '.ser' ) );
1300                         if ( $cache ) {
1301                                 self::$mLocalisationCache[$code] = $cache;
1302                                 wfDebug( "Got localisation for $code from precompiled data file\n" );
1303                                 wfProfileOut( __METHOD__ );
1304                                 return self::$mLocalisationCache[$code]['deps'];
1305                         }
1306
1307                         # Try the global cache
1308                         $memcKey = "$wgDBname:localisation:$code";
1309                         $cache = $wgMemc->get( $memcKey );
1310                         if ( $cache ) {
1311                                 $expired = false;
1312                                 # Check file modification times
1313                                 foreach ( $cache['deps'] as $file => $mtime ) {
1314                                         if ( filemtime( $file ) > $mtime ) {
1315                                                 $expired = true;
1316                                                 break;
1317                                         }
1318                                 }
1319                                 if ( self::isLocalisationOutOfDate( $cache ) ) {
1320                                         $wgMemc->delete( $memcKey );
1321                                         $cache = false;
1322                                         wfDebug( "Localisation cache for $code had expired due to update of $file\n" );
1323                                 } else {
1324                                         self::$mLocalisationCache[$code] = $cache;
1325                                         wfDebug( "Got localisation for $code from cache\n" );
1326                                         wfProfileOut( __METHOD__ );
1327                                         return $cache['deps'];
1328                                 }
1329                         }
1330                 } else {
1331                         wfProfileIn( __METHOD__ );
1332                 }
1333
1334                 if ( $code != 'en' ) {
1335                         $fallback = 'en';
1336                 } else {
1337                         $fallback = false;
1338                 }
1339
1340                 # Load the primary localisation from the source file
1341                 global $IP;
1342                 $filename = self::getFileName( "$IP/languages/Messages", $code, '.php' );
1343                 if ( !file_exists( $filename ) ) {
1344                         wfDebug( "No localisation file for $code, using implicit fallback to en\n" );
1345                         $cache = array();
1346                         $deps = array();
1347                 } else {
1348                         $deps = array( $filename => filemtime( $filename ) );
1349                         require( $filename );
1350                         $cache = compact( self::$mLocalisationKeys );
1351                         wfDebug( "Got localisation for $code from source\n" );
1352                 }
1353
1354                 if ( !empty( $fallback ) ) {
1355                         # Load the fallback localisation, with a circular reference guard
1356                         if ( isset( $recursionGuard[$code] ) ) {
1357                                 throw new MWException( "Error: Circular fallback reference in language code $code" );
1358                         }
1359                         $recursionGuard[$code] = true;
1360                         $newDeps = self::loadLocalisation( $fallback );
1361                         unset( $recursionGuard[$code] );
1362
1363                         $secondary = self::$mLocalisationCache[$fallback];
1364                         $deps = array_merge( $deps, $newDeps );
1365
1366                         # Merge the fallback localisation with the current localisation
1367                         foreach ( self::$mLocalisationKeys as $key ) {
1368                                 if ( isset( $cache[$key] ) ) {
1369                                         if ( isset( $secondary[$key] ) ) {
1370                                                 if ( in_array( $key, self::$mMergeableMapKeys ) ) {
1371                                                         $cache[$key] = $cache[$key] + $secondary[$key];
1372                                                 } elseif ( in_array( $key, self::$mMergeableListKeys ) ) {
1373                                                         $cache[$key] = array_merge( $secondary[$key], $cache[$key] );
1374                                                 }
1375                                         }
1376                                 } else {
1377                                         $cache[$key] = $secondary[$key];
1378                                 }
1379                         }
1380
1381                         # Merge bookstore lists if requested
1382                         if ( !empty( $cache['bookstoreList']['inherit'] ) ) {
1383                                 $cache['bookstoreList'] = array_merge( $cache['bookstoreList'], $secondary['bookstoreList'] );
1384                         }
1385                         if ( isset( $cache['bookstoreList']['inherit'] ) ) {
1386                                 unset( $cache['bookstoreList']['inherit'] );
1387                         }
1388                 }
1389
1390                 # Add dependencies to the cache entry
1391                 $cache['deps'] = $deps;
1392
1393                 # Save to both caches
1394                 self::$mLocalisationCache[$code] = $cache;
1395                 if ( !$disableCache ) {
1396                         $wgMemc->set( $memcKey, $cache );
1397                 }
1398
1399                 wfProfileOut( __METHOD__ );
1400                 return $deps;
1401         }
1402
1403         /**
1404          * Test if a given localisation cache is out of date with respect to the
1405          * source Messages files. This is done automatically for the global cache
1406          * in $wgMemc, but is only done on certain occasions for the serialized
1407          * data file.
1408          *
1409          * @param $cache mixed Either a language code or a cache array
1410          */
1411         static function isLocalisationOutOfDate( $cache ) {
1412                 if ( !is_array( $cache ) ) {
1413                         self::loadLocalisation( $cache );
1414                         $cache = self::$mLocalisationCache[$cache];
1415                 }
1416                 $expired = false;
1417                 foreach ( $cache['deps'] as $file => $mtime ) {
1418                         if ( filemtime( $file ) > $mtime ) {
1419                                 $expired = true;
1420                                 break;
1421                         }
1422                 }
1423                 return $expired;
1424         }
1425
1426         /**
1427          * Get the fallback for a given language
1428          */
1429         static function getFallbackFor( $code ) {
1430                 self::loadLocalisation( $code );
1431                 return self::$mLocalisationCache[$code]['fallback'];
1432         }
1433
1434         /**
1435          * Get all messages for a given language
1436          */
1437         static function getMessagesFor( $code ) {
1438                 self::loadLocalisation( $code );
1439                 return self::$mLocalisationCache[$code]['messages'];
1440         }
1441
1442         /**
1443          * Get a message for a given language
1444          */
1445         static function getMessageFor( $key, $code ) {
1446                 self::loadLocalisation( $code );
1447                 return @self::$mLocalisationCache[$code]['messages'][$key];
1448         }
1449
1450         /**
1451          * Load localisation data for this object
1452          */
1453         function load() {
1454                 if ( !$this->mLoaded ) {
1455                         self::loadLocalisation( $this->getCode() );
1456                         $cache =& self::$mLocalisationCache[$this->getCode()];
1457                         foreach ( self::$mLocalisationKeys as $key ) {
1458                                 $this->$key = $cache[$key];
1459                         }
1460                         $this->mLoaded = true;
1461
1462                         $this->fixUpSettings();
1463                 }
1464         }
1465
1466         /**
1467          * Do any necessary post-cache-load settings adjustment
1468          */
1469         function fixUpSettings() {
1470                 global $wgExtraNamespaces, $wgMetaNamespace, $wgMetaNamespaceTalk, $wgMessageCache,
1471                         $wgNamespaceAliases, $wgAmericanDates;
1472                 wfProfileIn( __METHOD__ );
1473                 if ( $wgExtraNamespaces ) {
1474                         $this->namespaceNames = $wgExtraNamespaces + $this->namespaceNames;
1475                 }
1476
1477                 $this->namespaceNames[NS_PROJECT] = $wgMetaNamespace;
1478                 if ( $wgMetaNamespaceTalk ) {
1479                         $this->namespaceNames[NS_PROJECT_TALK] = $wgMetaNamespaceTalk;
1480                 } else {
1481                         $talk = $this->namespaceNames[NS_PROJECT_TALK];
1482                         $talk = str_replace( '$1', $wgMetaNamespace, $talk );
1483
1484                         # Allow grammar transformations
1485                         # Allowing full message-style parsing would make simple requests
1486                         # such as action=raw much more expensive than they need to be.
1487                         # This will hopefully cover most cases.
1488                         $talk = preg_replace_callback( '/{{grammar:(.*?)\|(.*?)}}/i',
1489                                 array( &$this, 'replaceGrammarInNamespace' ), $talk );
1490                         $talk = str_replace( ' ', '_', $talk );
1491                         $this->namespaceNames[NS_PROJECT_TALK] = $talk;
1492                 }
1493
1494                 # The above mixing may leave namespaces out of canonical order.
1495                 # Re-order by namespace ID number...
1496                 ksort( $this->namespaceNames );
1497
1498                 # Put namespace names and aliases into a hashtable.
1499                 # If this is too slow, then we should arrange it so that it is done
1500                 # before caching. The catch is that at pre-cache time, the above
1501                 # class-specific fixup hasn't been done.
1502                 $this->mNamespaceIds = array();
1503                 foreach ( $this->namespaceNames as $index => $name ) {
1504                         $this->mNamespaceIds[$this->lc($name)] = $index;
1505                 }
1506                 if ( $this->namespaceAliases ) {
1507                         foreach ( $this->namespaceAliases as $name => $index ) {
1508                                 $this->mNamespaceIds[$this->lc($name)] = $index;
1509                         }
1510                 }
1511                 if ( $wgNamespaceAliases ) {
1512                         foreach ( $wgNamespaceAliases as $name => $index ) {
1513                                 $this->mNamespaceIds[$this->lc($name)] = $index;
1514                         }
1515                 }
1516
1517                 if ( $this->defaultDateFormat == 'dmy or mdy' ) {
1518                         $this->defaultDateFormat = $wgAmericanDates ? 'mdy' : 'dmy';
1519                 }
1520                 wfProfileOut( __METHOD__ );
1521         }
1522
1523         function replaceGrammarInNamespace( $m ) {
1524                 return $this->convertGrammar( trim( $m[2] ), trim( $m[1] ) );
1525         }
1526
1527         static function getCaseMaps() {
1528                 static $wikiUpperChars, $wikiLowerChars;
1529                 global $IP;
1530                 if ( isset( $wikiUpperChars ) ) {
1531                         return array( $wikiUpperChars, $wikiLowerChars );
1532                 }
1533
1534                 wfProfileIn( __METHOD__ );
1535                 $arr = wfGetPrecompiledData( 'Utf8Case.ser' );
1536                 if ( $arr === false ) {
1537                         throw new MWException(
1538                                 "Utf8Case.ser is missing, please run \"make\" in the serialized directory\n" );
1539                 }
1540                 extract( $arr );
1541                 wfProfileOut( __METHOD__ );
1542                 return array( $wikiUpperChars, $wikiLowerChars );
1543         }
1544 }
1545
1546 ?>