maintenance/language/checkLanguage.inc

   1 <?php
   2 /**
   3  * Helper class for checkLanguage.php script.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup MaintenanceLanguage
  22  */
  23
  24 /**
  25  * @ingroup MaintenanceLanguage
  26  */
  27 class CheckLanguageCLI {
  28         protected $code  = null;
  29         protected $level = 2;
  30         protected $doLinks = false;
  31         protected $linksPrefix = '';
  32         protected $wikiCode = 'en';
  33         protected $checkAll = false;
  34         protected $output = 'plain';
  35         protected $checks = array();
  36         protected $L = null;
  37
  38         protected $results = array();
  39
  40         private $includeExif = false;
  41
  42         /**
  43          * Constructor.
  44          * @param $options array Options for script.
  45          */
  46         public function __construct( array $options ) {
  47                 if ( isset( $options['help'] ) ) {
  48                         echo $this->help();
  49                         exit(1);
  50                 }
  51
  52                 if ( isset( $options['lang'] ) ) {
  53                         $this->code = $options['lang'];
  54                 } else {
  55                         global $wgLanguageCode;
  56                         $this->code = $wgLanguageCode;
  57                 }
  58
  59                 if ( isset( $options['level'] ) ) {
  60                         $this->level = $options['level'];
  61                 }
  62
  63                 $this->doLinks = isset( $options['links'] );
  64                 $this->includeExif = !isset( $options['noexif'] );
  65                 $this->checkAll = isset( $options['all'] );
  66
  67                 if ( isset( $options['prefix'] ) ) {
  68                         $this->linksPrefix = $options['prefix'];
  69                 }
  70
  71                 if ( isset( $options['wikilang'] ) ) {
  72                         $this->wikiCode = $options['wikilang'];
  73                 }
  74
  75                 if ( isset( $options['whitelist'] ) ) {
  76                         $this->checks = explode( ',', $options['whitelist'] );
  77                 } elseif ( isset( $options['blacklist'] ) ) {
  78                         $this->checks = array_diff(
  79                                 isset( $options['easy'] ) ? $this->easyChecks() : $this->defaultChecks(),
  80                                 explode( ',', $options['blacklist'] )
  81                         );
  82                 } elseif ( isset( $options['easy'] ) ) {
  83                         $this->checks = $this->easyChecks();
  84                 } else {
  85                         $this->checks = $this->defaultChecks();
  86                 }
  87
  88                 if ( isset( $options['output'] ) ) {
  89                         $this->output = $options['output'];
  90                 }
  91
  92                 $this->L = new languages( $this->includeExif );
  93         }
  94
  95         /**
  96          * Get the default checks.
  97          * @return array A list of the default checks.
  98          */
  99         protected function defaultChecks() {
 100                 return array(
 101                         'untranslated', 'duplicate', 'obsolete', 'variables', 'empty', 'plural',
 102                         'whitespace', 'xhtml', 'chars', 'links', 'unbalanced', 'namespace',
 103                         'projecttalk', 'magic', 'magic-old', 'magic-over', 'magic-case',
 104                         'special', 'special-old',
 105                 );
 106         }
 107
 108         /**
 109          * Get the checks which check other things than messages.
 110          * @return array A list of the non-message checks.
 111          */
 112         protected function nonMessageChecks() {
 113                 return array(
 114                         'namespace', 'projecttalk', 'magic', 'magic-old', 'magic-over',
 115                         'magic-case', 'special', 'special-old',
 116                 );
 117         }
 118
 119         /**
 120          * Get the checks that can easily be treated by non-speakers of the language.
 121          * @return Array A list of the easy checks.
 122          */
 123         protected function easyChecks() {
 124                 return array(
 125                         'duplicate', 'obsolete', 'empty', 'whitespace', 'xhtml', 'chars', 'magic-old',
 126                         'magic-over', 'magic-case', 'special-old',
 127                 );
 128         }
 129
 130         /**
 131          * Get all checks.
 132          * @return array An array of all check names mapped to their function names.
 133          */
 134         protected function getChecks() {
 135                 return array(
 136                         'untranslated' => 'getUntranslatedMessages',
 137                         'duplicate'    => 'getDuplicateMessages',
 138                         'obsolete'     => 'getObsoleteMessages',
 139                         'variables'    => 'getMessagesWithMismatchVariables',
 140                         'plural'       => 'getMessagesWithoutPlural',
 141                         'empty'        => 'getEmptyMessages',
 142                         'whitespace'   => 'getMessagesWithWhitespace',
 143                         'xhtml'        => 'getNonXHTMLMessages',
 144                         'chars'        => 'getMessagesWithWrongChars',
 145                         'links'        => 'getMessagesWithDubiousLinks',
 146                         'unbalanced'   => 'getMessagesWithUnbalanced',
 147                         'namespace'    => 'getUntranslatedNamespaces',
 148                         'projecttalk'  => 'getProblematicProjectTalks',
 149                         'magic'        => 'getUntranslatedMagicWords',
 150                         'magic-old'    => 'getObsoleteMagicWords',
 151                         'magic-over'   => 'getOverridingMagicWords',
 152                         'magic-case'   => 'getCaseMismatchMagicWords',
 153                         'special'      => 'getUntraslatedSpecialPages',
 154                         'special-old'  => 'getObsoleteSpecialPages',
 155                 );
 156         }
 157
 158         /**
 159          * Get total count for each check non-messages check.
 160          * @return array An array of all check names mapped to a two-element array:
 161          * function name to get the total count and language code or null
 162          * for checked code.
 163          */
 164         protected function getTotalCount() {
 165                 return array(
 166                         'namespace'    => array( 'getNamespaceNames', 'en' ),
 167                         'projecttalk'  => null,
 168                         'magic'        => array( 'getMagicWords', 'en' ),
 169                         'magic-old'    => array( 'getMagicWords', null ),
 170                         'magic-over'   => array( 'getMagicWords', null ),
 171                         'magic-case'   => array( 'getMagicWords', null ),
 172                         'special'      => array( 'getSpecialPageAliases', 'en' ),
 173                         'special-old'  => array( 'getSpecialPageAliases', null ),
 174                 );
 175         }
 176
 177         /**
 178          * Get all check descriptions.
 179          * @return array An array of all check names mapped to their descriptions.
 180          */
 181         protected function getDescriptions() {
 182                 return array(
 183                         'untranslated' => '$1 message(s) of $2 are not translated to $3, but exist in en:',
 184                         'duplicate'    => '$1 message(s) of $2 are translated the same in en and $3:',
 185                         'obsolete'     => '$1 message(s) of $2 do not exist in en or are in the ignore list, but exist in $3:',
 186                         'variables'    => '$1 message(s) of $2 in $3 don\'t match the variables used in en:',
 187                         'plural'       => '$1 message(s) of $2 in $3 don\'t use {{plural}} while en uses:',
 188                         'empty'        => '$1 message(s) of $2 in $3 are empty or -:',
 189                         'whitespace'   => '$1 message(s) of $2 in $3 have trailing whitespace:',
 190                         'xhtml'        => '$1 message(s) of $2 in $3 contain illegal XHTML:',
 191                         'chars'        => '$1 message(s) of $2 in $3 include hidden chars which should not be used in the messages:',
 192                         'links'        => '$1 message(s) of $2 in $3 have problematic link(s):',
 193                         'unbalanced'   => '$1 message(s) of $2 in $3 have unbalanced {[]}:',
 194                         'namespace'    => '$1 namespace name(s) of $2 are not translated to $3, but exist in en:',
 195                         'projecttalk'  => '$1 namespace name(s) and alias(es) in $3 are project talk namespaces without the parameter:',
 196                         'magic'        => '$1 magic word(s) of $2 are not translated to $3, but exist in en:',
 197                         'magic-old'    => '$1 magic word(s) of $2 do not exist in en, but exist in $3:',
 198                         'magic-over'   => '$1 magic word(s) of $2 in $3 do not contain the original en word(s):',
 199                         'magic-case'   => '$1 magic word(s) of $2 in $3 change the case-sensitivity of the original en word:',
 200                         'special'      => '$1 special page alias(es) of $2 are not translated to $3, but exist in en:',
 201                         'special-old'  => '$1 special page alias(es) of $2 do not exist in en, but exist in $3:',
 202                 );
 203         }
 204
 205         /**
 206          * Get help.
 207          * @return string The help string.
 208          */
 209         protected function help() {
 210                 return <<<ENDS
 211 Run this script to check a specific language file, or all of them.
 212 Command line settings are in form --parameter[=value].
 213 Parameters:
 214         --help: Show this help.
 215         --lang: Language code (default: the installation default language).
 216         --all: Check all customized languages.
 217         --level: Show the following display level (default: 2):
 218                 * 0: Skip the checks (useful for checking syntax).
 219                 * 1: Show only the stub headers and number of wrong messages, without list of messages.
 220                 * 2: Show only the headers and the message keys, without the message values.
 221                 * 3: Show both the headers and the complete messages, with both keys and values.
 222         --links: Link the message values (default off).
 223         --prefix: prefix to add to links.
 224         --wikilang: For the links, what is the content language of the wiki to display the output in (default en).
 225         --noexif: Do not check for EXIF messages (a bit hard and boring to translate), if you know
 226                 that they are currently not translated and want to focus on other problems (default off).
 227         --whitelist: Do only the following checks (form: code,code).
 228         --blacklist: Do not do the following checks (form: code,code).
 229         --easy: Do only the easy checks, which can be treated by non-speakers of the language.
 230
 231 Check codes (ideally, all of them should result 0; all the checks are executed by default (except language-specific check blacklists in checkLanguage.inc):
 232         * untranslated: Messages which are required to translate, but are not translated.
 233         * duplicate: Messages which translation equal to fallback
 234         * obsolete: Messages which are untranslatable or do not exist, but are translated.
 235         * variables: Messages without variables which should be used, or with variables which should not be used.
 236         * empty: Empty messages and messages that contain only -.
 237         * whitespace: Messages which have trailing whitespace.
 238         * xhtml: Messages which are not well-formed XHTML (checks only few common errors).
 239         * chars: Messages with hidden characters.
 240         * links: Messages which contains broken links to pages (does not find all).
 241         * unbalanced: Messages which contains unequal numbers of opening {[ and closing ]}.
 242         * namespace: Namespace names that were not translated.
 243         * projecttalk: Namespace names and aliases where the project talk does not contain $1.
 244         * magic: Magic words that were not translated.
 245         * magic-old: Magic words which do not exist.
 246         * magic-over: Magic words that override the original English word.
 247         * magic-case: Magic words whose translation changes the case-sensitivity of the original English word.
 248         * special: Special page names that were not translated.
 249         * special-old: Special page names which do not exist.
 250
 251 ENDS;
 252         }
 253
 254         /**
 255          * Execute the script.
 256          */
 257         public function execute() {
 258                 $this->doChecks();
 259                 if ( $this->level > 0 ) {
 260                         switch ( $this->output ) {
 261                                 case 'plain':
 262                                         $this->outputText();
 263                                         break;
 264                                 case 'wiki':
 265                                         $this->outputWiki();
 266                                         break;
 267                                 default:
 268                                         throw new MWException( "Invalid output type $this->output" );
 269                         }
 270                 }
 271         }
 272
 273         /**
 274          * Execute the checks.
 275          */
 276         protected function doChecks() {
 277                 $ignoredCodes = array( 'en', 'enRTL' );
 278
 279                 $this->results = array();
 280                 # Check the language
 281                 if ( $this->checkAll ) {
 282                         foreach ( $this->L->getLanguages() as $language ) {
 283                                 if ( !in_array( $language, $ignoredCodes ) ) {
 284                                         $this->results[$language] = $this->checkLanguage( $language );
 285                                 }
 286                         }
 287                 } else {
 288                         if ( in_array( $this->code, $ignoredCodes ) ) {
 289                                 throw new MWException( "Cannot check code $this->code." );
 290                         } else {
 291                                 $this->results[$this->code] = $this->checkLanguage( $this->code );
 292                         }
 293                 }
 294         }
 295
 296         /**
 297          * Get the check blacklist.
 298          * @return array The list of checks which should not be executed.
 299          */
 300         protected function getCheckBlacklist() {
 301                 global $checkBlacklist;
 302                 return $checkBlacklist;
 303         }
 304
 305         /**
 306          * Check a language.
 307          * @param $code string The language code.
 308          * @throws MWException
 309          * @return array The results.
 310          */
 311         protected function checkLanguage( $code ) {
 312                 # Syntax check only
 313                 $results = array();
 314                 if ( $this->level === 0 ) {
 315                         $this->L->getMessages( $code );
 316                         return $results;
 317                 }
 318
 319                 $checkFunctions = $this->getChecks();
 320                 $checkBlacklist = $this->getCheckBlacklist();
 321                 foreach ( $this->checks as $check ) {
 322                         if ( isset( $checkBlacklist[$code] ) &&
 323                                 in_array( $check, $checkBlacklist[$code] ) ) {
 324                                 $results[$check] = array();
 325                                 continue;
 326                         }
 327
 328                         $callback = array( $this->L, $checkFunctions[$check] );
 329                         if ( !is_callable( $callback ) ) {
 330                                 throw new MWException( "Unkown check $check." );
 331                         }
 332                         $results[$check] = call_user_func( $callback, $code );
 333                 }
 334
 335                 return $results;
 336         }
 337
 338         /**
 339          * Format a message key.
 340          * @param $key string The message key.
 341          * @param $code string The language code.
 342          * @return string The formatted message key.
 343          */
 344         protected function formatKey( $key, $code ) {
 345                 if ( $this->doLinks ) {
 346                         $displayKey = ucfirst( $key );
 347                         if ( $code == $this->wikiCode ) {
 348                                 return "[[{$this->linksPrefix}MediaWiki:$displayKey|$key]]";
 349                         } else {
 350                                 return "[[{$this->linksPrefix}MediaWiki:$displayKey/$code|$key]]";
 351                         }
 352                 } else {
 353                         return $key;
 354                 }
 355         }
 356
 357         /**
 358          * Output the checks results as plain text.
 359          */
 360         protected function outputText() {
 361                 foreach ( $this->results as $code => $results ) {
 362                         $translated = $this->L->getMessages( $code );
 363                         $translated = count( $translated['translated'] );
 364                         foreach ( $results as $check => $messages ) {
 365                                 $count = count( $messages );
 366                                 if ( $count ) {
 367                                         if ( $check == 'untranslated' ) {
 368                                                 $translatable = $this->L->getGeneralMessages();
 369                                                 $total = count( $translatable['translatable'] );
 370                                         } elseif ( in_array( $check, $this->nonMessageChecks() ) ) {
 371                                                 $totalCount = $this->getTotalCount();
 372                                                 $totalCount = $totalCount[$check];
 373                                                 $callback = array( $this->L, $totalCount[0] );
 374                                                 $callCode = $totalCount[1] ? $totalCount[1] : $code;
 375                                                 $total = count( call_user_func( $callback, $callCode ) );
 376                                         } else {
 377                                                 $total = $translated;
 378                                         }
 379                                         $search = array( '$1', '$2', '$3' );
 380                                         $replace = array( $count, $total, $code );
 381                                         $descriptions = $this->getDescriptions();
 382                                         echo "\n" . str_replace( $search, $replace, $descriptions[$check] ) . "\n";
 383                                         if ( $this->level == 1 ) {
 384                                                 echo "[messages are hidden]\n";
 385                                         } else {
 386                                                 foreach ( $messages as $key => $value ) {
 387                                                         if( !in_array( $check, $this->nonMessageChecks() ) ) {
 388                                                                 $key = $this->formatKey( $key, $code );
 389                                                         }
 390                                                         if ( $this->level == 2 || empty( $value ) ) {
 391                                                                 echo "* $key\n";
 392                                                         } else {
 393                                                                 echo "* $key:           '$value'\n";
 394                                                         }
 395                                                 }
 396                                         }
 397                                 }
 398                         }
 399                 }
 400         }
 401
 402         /**
 403          * Output the checks results as wiki text.
 404          */
 405         function outputWiki() {
 406                 $detailText = '';
 407                 $rows[] = '! Language !! Code !! Total !! ' . implode( ' !! ', array_diff( $this->checks, $this->nonMessageChecks() ) );
 408                 foreach ( $this->results as $code => $results ) {
 409                         $detailTextForLang = "==$code==\n";
 410                         $numbers = array();
 411                         $problems = 0;
 412                         $detailTextForLangChecks = array();
 413                         foreach ( $results as $check => $messages ) {
 414                                 if( in_array( $check, $this->nonMessageChecks() ) ) {
 415                                         continue;
 416                                 }
 417                                 $count = count( $messages );
 418                                 if ( $count ) {
 419                                         $problems += $count;
 420                                         $messageDetails = array();
 421                                         foreach ( $messages as $key => $details ) {
 422                                                 $displayKey = $this->formatKey( $key, $code );
 423                                                 $messageDetails[] = $displayKey;
 424                                         }
 425                                         $detailTextForLangChecks[] = "=== $code-$check ===\n* " . implode( ', ', $messageDetails );
 426                                         $numbers[] = "'''[[#$code-$check|$count]]'''";
 427                                 } else {
 428                                         $numbers[] = $count;
 429                                 }
 430
 431                         }
 432
 433                         if ( count( $detailTextForLangChecks ) ) {
 434                                 $detailText .= $detailTextForLang . implode( "\n", $detailTextForLangChecks ) . "\n";
 435                         }
 436
 437                         if ( !$problems ) {
 438                                 # Don't list languages without problems
 439                                 continue;
 440                         }
 441                         $language = Language::fetchLanguageName( $code );
 442                         $rows[] = "| $language || $code || $problems || " . implode( ' || ', $numbers );
 443                 }
 444
 445                 $tableRows = implode( "\n|-\n", $rows );
 446
 447                 $version = SpecialVersion::getVersion( 'nodb' );
 448                 echo <<<EOL
 449 '''Check results are for:''' <code>$version</code>
 450
 451
 452 {| class="sortable wikitable" border="2" cellpadding="4" cellspacing="0" style="background-color: #F9F9F9; border: 1px #AAAAAA solid; border-collapse: collapse; clear: both;"
 453 $tableRows
 454 |}
 455
 456 $detailText
 457
 458 EOL;
 459         }
 460
 461         /**
 462          * Check if there are any results for the checks, in any language.
 463          * @return bool True if there are any results, false if not.
 464          */
 465         protected function isEmpty() {
 466                 foreach( $this->results as $results ) {
 467                         foreach( $results as $messages ) {
 468                                 if( !empty( $messages ) ) {
 469                                         return false;
 470                                 }
 471                         }
 472                 }
 473                 return true;
 474         }
 475 }
 476
 477 /**
 478  * @ingroup MaintenanceLanguage
 479  */
 480 class CheckExtensionsCLI extends CheckLanguageCLI {
 481         private $extensions;
 482
 483         /**
 484          * Constructor.
 485          * @param $options array Options for script.
 486          * @param $extension string The extension name (or names).
 487          */
 488         public function __construct( array $options, $extension ) {
 489                 if ( isset( $options['help'] ) ) {
 490                         echo $this->help();
 491                         exit(1);
 492                 }
 493
 494                 if ( isset( $options['lang'] ) ) {
 495                         $this->code = $options['lang'];
 496                 } else {
 497                         global $wgLanguageCode;
 498                         $this->code = $wgLanguageCode;
 499                 }
 500
 501                 if ( isset( $options['level'] ) ) {
 502                         $this->level = $options['level'];
 503                 }
 504
 505                 $this->doLinks = isset( $options['links'] );
 506
 507                 if ( isset( $options['wikilang'] ) ) {
 508                         $this->wikiCode = $options['wikilang'];
 509                 }
 510
 511                 if ( isset( $options['whitelist'] ) ) {
 512                         $this->checks = explode( ',', $options['whitelist'] );
 513                 } elseif ( isset( $options['blacklist'] ) ) {
 514                         $this->checks = array_diff(
 515                                 isset( $options['easy'] ) ? $this->easyChecks() : $this->defaultChecks(),
 516                                 explode( ',', $options['blacklist'] )
 517                         );
 518                 } elseif ( isset( $options['easy'] ) ) {
 519                         $this->checks = $this->easyChecks();
 520                 } else {
 521                         $this->checks = $this->defaultChecks();
 522                 }
 523
 524                 if ( isset( $options['output'] ) ) {
 525                         $this->output = $options['output'];
 526                 }
 527
 528                 # Some additional checks not enabled by default
 529                 if ( isset( $options['duplicate'] ) ) {
 530                         $this->checks[] = 'duplicate';
 531                 }
 532
 533                 $this->extensions = array();
 534                 $extensions = new PremadeMediawikiExtensionGroups();
 535                 $extensions->addAll();
 536                 if ( $extension == 'all' ) {
 537                         foreach ( MessageGroups::singleton()->getGroups() as $group ) {
 538                                 if ( strpos( $group->getId(), 'ext-' ) === 0 && !$group->isMeta() ) {
 539                                         $this->extensions[] = new extensionLanguages( $group );
 540                                 }
 541                         }
 542                 } elseif ( $extension == 'wikimedia' ) {
 543                         $wikimedia = MessageGroups::getGroup( 'ext-0-wikimedia' );
 544                         foreach ( $wikimedia->wmfextensions() as $extension ) {
 545                                 $group = MessageGroups::getGroup( $extension );
 546                                 $this->extensions[] = new extensionLanguages( $group );
 547                         }
 548                 } elseif ( $extension == 'flaggedrevs' ) {
 549                         foreach ( MessageGroups::singleton()->getGroups() as $group ) {
 550                                 if ( strpos( $group->getId(), 'ext-flaggedrevs-' ) === 0 && !$group->isMeta() ) {
 551                                         $this->extensions[] = new extensionLanguages( $group );
 552                                 }
 553                         }
 554                 } else {
 555                         $extensions = explode( ',', $extension );
 556                         foreach ( $extensions as $extension ) {
 557                                 $group = MessageGroups::getGroup( 'ext-' . $extension );
 558                                 if ( $group ) {
 559                                         $extension = new extensionLanguages( $group );
 560                                         $this->extensions[] = $extension;
 561                                 } else {
 562                                         print "No such extension $extension.\n";
 563                                 }
 564                         }
 565                 }
 566         }
 567
 568         /**
 569          * Get the default checks.
 570          * @return array A list of the default checks.
 571          */
 572         protected function defaultChecks() {
 573                 return array(
 574                         'untranslated', 'duplicate', 'obsolete', 'variables', 'empty', 'plural',
 575                         'whitespace', 'xhtml', 'chars', 'links', 'unbalanced',
 576                 );
 577         }
 578
 579         /**
 580          * Get the checks which check other things than messages.
 581          * @return array A list of the non-message checks.
 582          */
 583         protected function nonMessageChecks() {
 584                 return array();
 585         }
 586
 587         /**
 588          * Get the checks that can easily be treated by non-speakers of the language.
 589          * @return arrayA list of the easy checks.
 590          */
 591         protected function easyChecks() {
 592                 return array(
 593                         'duplicate', 'obsolete', 'empty', 'whitespace', 'xhtml', 'chars',
 594                 );
 595         }
 596
 597         /**
 598          * Get help.
 599          * @return string The help string.
 600          */
 601         protected function help() {
 602                 return <<<ENDS
 603 Run this script to check the status of a specific language in extensions, or all of them.
 604 Command line settings are in form --parameter[=value], except for the first one.
 605 Parameters:
 606         * First parameter (mandatory): Extension name, multiple extension names (separated by commas), "all" for all the extensions, "wikimedia" for extensions used by Wikimedia or "flaggedrevs" for all FLaggedRevs extension messages.
 607         * lang: Language code (default: the installation default language).
 608         * help: Show this help.
 609         * level: Show the following display level (default: 2).
 610         * links: Link the message values (default off).
 611         * wikilang: For the links, what is the content language of the wiki to display the output in (default en).
 612         * whitelist: Do only the following checks (form: code,code).
 613         * blacklist: Do not perform the following checks (form: code,code).
 614         * easy: Do only the easy checks, which can be treated by non-speakers of the language.
 615 Check codes (ideally, all of them should result 0; all the checks are executed by default (except language-specific check blacklists in checkLanguage.inc):
 616         * untranslated: Messages which are required to translate, but are not translated.
 617         * duplicate: Messages which translation equal to fallback
 618         * obsolete: Messages which are untranslatable, but translated.
 619         * variables: Messages without variables which should be used, or with variables which should not be used.
 620         * empty: Empty messages.
 621         * whitespace: Messages which have trailing whitespace.
 622         * xhtml: Messages which are not well-formed XHTML (checks only few common errors).
 623         * chars: Messages with hidden characters.
 624         * links: Messages which contains broken links to pages (does not find all).
 625         * unbalanced: Messages which contains unequal numbers of opening {[ and closing ]}.
 626 Display levels (default: 2):
 627         * 0: Skip the checks (useful for checking syntax).
 628         * 1: Show only the stub headers and number of wrong messages, without list of messages.
 629         * 2: Show only the headers and the message keys, without the message values.
 630         * 3: Show both the headers and the complete messages, with both keys and values.
 631
 632 ENDS;
 633         }
 634
 635         /**
 636          * Execute the script.
 637          */
 638         public function execute() {
 639                 $this->doChecks();
 640         }
 641
 642         /**
 643          * Check a language and show the results.
 644          * @param $code string The language code.
 645          * @throws MWException
 646          */
 647         protected function checkLanguage( $code ) {
 648                 foreach( $this->extensions as $extension ) {
 649                         $this->L = $extension;
 650                         $this->results = array();
 651                         $this->results[$code] = parent::checkLanguage( $code );
 652
 653                         if( !$this->isEmpty() ) {
 654                                 echo $extension->name() . ":\n";
 655
 656                                 if( $this->level > 0 ) {
 657                                         switch( $this->output ) {
 658                                                 case 'plain':
 659                                                         $this->outputText();
 660                                                         break;
 661                                                 case 'wiki':
 662                                                         $this->outputWiki();
 663                                                         break;
 664                                                 default:
 665                                                         throw new MWException( "Invalid output type $this->output" );
 666                                         }
 667                                 }
 668
 669                                 echo "\n";
 670                         }
 671                 }
 672         }
 673 }
 674
 675 # Blacklist some checks for some languages
 676 $checkBlacklist = array(
 677 #'code'        => array( 'check1', 'check2' ... )
 678 'az'           => array( 'plural' ),
 679 'bo'           => array( 'plural' ),
 680 'dz'           => array( 'plural' ),
 681 'id'           => array( 'plural' ),
 682 'fa'           => array( 'plural' ),
 683 'gan'          => array( 'plural' ),
 684 'gan-hans'     => array( 'plural' ),
 685 'gan-hant'     => array( 'plural' ),
 686 'gn'           => array( 'plural' ),
 687 'hak'          => array( 'plural' ),
 688 'hu'           => array( 'plural' ),
 689 'ja'           => array( 'plural' ), // Does not use plural
 690 'jv'           => array( 'plural' ),
 691 'ka'           => array( 'plural' ),
 692 'kk-arab'      => array( 'plural' ),
 693 'kk-cyrl'      => array( 'plural' ),
 694 'kk-latn'      => array( 'plural' ),
 695 'km'           => array( 'plural' ),
 696 'kn'           => array( 'plural' ),
 697 'ko'           => array( 'plural' ),
 698 'lzh'          => array( 'plural' ),
 699 'mn'           => array( 'plural' ),
 700 'ms'           => array( 'plural' ),
 701 'my'           => array( 'plural', 'chars' ),  // Uses a lot zwnj
 702 'sah'          => array( 'plural' ),
 703 'sq'           => array( 'plural' ),
 704 'tet'          => array( 'plural' ),
 705 'th'           => array( 'plural' ),
 706 'to'           => array( 'plural' ),
 707 'tr'           => array( 'plural' ),
 708 'vi'           => array( 'plural' ),
 709 'wuu'          => array( 'plural' ),
 710 'xmf'          => array( 'plural' ),
 711 'yo'           => array( 'plural' ),
 712 'yue'          => array( 'plural' ),
 713 'zh'           => array( 'plural' ),
 714 'zh-classical' => array( 'plural' ),
 715 'zh-cn'        => array( 'plural' ),
 716 'zh-hans'      => array( 'plural' ),
 717 'zh-hant'      => array( 'plural' ),
 718 'zh-hk'        => array( 'plural' ),
 719 'zh-sg'        => array( 'plural' ),
 720 'zh-tw'        => array( 'plural' ),
 721 'zh-yue'       => array( 'plural' ),
 722 );