maintenance/language/generateNormalizerDataAr.php

   1 <?php
   2 /**
   3  * Generates the normalizer data file for Arabic.
   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 require_once __DIR__ . '/../Maintenance.php';
  25
  26 use Wikimedia\StaticArrayWriter;
  27
  28 /**
  29  * Generates the normalizer data file for Arabic.
  30  *
  31  * This data file is used after normalizing to NFC.
  32  *
  33  * Example usage:
  34  *
  35  *    curl 'https://unicode.org/Public/6.0.0/ucd/UnicodeData.txt' > /tmp/UnicodeData.txt
  36  *    php generateNormalizerDataAr.php --unicode-data-file /tmp/UnicodeData.txt
  37  *
  38  * @ingroup MaintenanceLanguage
  39  */
  40 class GenerateNormalizerDataAr extends Maintenance {
  41         public function __construct() {
  42                 parent::__construct();
  43                 $this->addDescription( 'Generate the normalizer data file for Arabic' );
  44                 $this->addOption( 'unicode-data-file', 'The local location of the data file ' .
  45                         'from https://unicode.org/Public/6.0.0/ucd/UnicodeData.txt', false, true );
  46         }
  47
  48         public function getDbType() {
  49                 return Maintenance::DB_NONE;
  50         }
  51
  52         public function execute() {
  53                 if ( !$this->hasOption( 'unicode-data-file' ) ) {
  54                         $dataFile = 'UnicodeData.txt';
  55                         if ( !file_exists( $dataFile ) ) {
  56                                 $this->fatalError( "Unable to find UnicodeData.txt. Please specify " .
  57                                         "its location with --unicode-data-file=<FILE>" );
  58                         }
  59                 } else {
  60                         $dataFile = $this->getOption( 'unicode-data-file' );
  61                         if ( !file_exists( $dataFile ) ) {
  62                                 $this->fatalError( 'Unable to find the specified data file.' );
  63                         }
  64                 }
  65
  66                 $file = fopen( $dataFile, 'r' );
  67                 if ( !$file ) {
  68                         $this->fatalError( 'Unable to open the data file.' );
  69                 }
  70
  71                 // For the file format, see https://www.unicode.org/reports/tr44/
  72                 $fieldNames = [
  73                         'Code',
  74                         'Name',
  75                         'General_Category',
  76                         'Canonical_Combining_Class',
  77                         'Bidi_Class',
  78                         'Decomposition_Type_Mapping',
  79                         'Numeric_Type_Value_6',
  80                         'Numeric_Type_Value_7',
  81                         'Numeric_Type_Value_8',
  82                         'Bidi_Mirrored',
  83                         'Unicode_1_Name',
  84                         'ISO_Comment',
  85                         'Simple_Uppercase_Mapping',
  86                         'Simple_Lowercase_Mapping',
  87                         'Simple_Titlecase_Mapping'
  88                 ];
  89
  90                 $pairs = [];
  91
  92                 $lineNum = 0;
  93                 while ( ( $line = fgets( $file ) ) !== false ) {
  94                         ++$lineNum;
  95
  96                         # Strip comments
  97                         $line = trim( substr( $line, 0, strcspn( $line, '#' ) ) );
  98                         if ( $line === '' ) {
  99                                 continue;
 100                         }
 101
 102                         # Split fields
 103                         $numberedData = explode( ';', $line );
 104                         $data = [];
 105                         foreach ( $fieldNames as $number => $name ) {
 106                                 $data[$name] = $numberedData[$number];
 107                         }
 108
 109                         $code = base_convert( $data['Code'], 16, 10 );
 110                         if ( ( $code >= 0xFB50 && $code <= 0xFDFF ) # Arabic presentation forms A
 111                                 || ( $code >= 0xFE70 && $code <= 0xFEFF ) # Arabic presentation forms B
 112                         ) {
 113                                 if ( $data['Decomposition_Type_Mapping'] === '' ) {
 114                                         // No decomposition
 115                                         continue;
 116                                 }
 117                                 if ( !preg_match( '/^ *(<\w*>) +([0-9A-F ]*)$/',
 118                                         $data['Decomposition_Type_Mapping'], $m )
 119                                 ) {
 120                                         $this->error( "Can't parse Decomposition_Type/Mapping on line $lineNum" );
 121                                         $this->error( $line );
 122                                         continue;
 123                                 }
 124
 125                                 $source = UtfNormal\Utils::hexSequenceToUtf8( $data['Code'] );
 126                                 $dest = UtfNormal\Utils::hexSequenceToUtf8( $m[2] );
 127                                 $pairs[$source] = $dest;
 128                         }
 129                 }
 130
 131                 global $IP;
 132                 $writer = new StaticArrayWriter();
 133                 file_put_contents( "$IP/languages/data/normalize-ar.php", $writer->create(
 134                         $pairs,
 135                         'File created by generateNormalizerDataAr.php'
 136                 ) );
 137
 138                 echo "ar: " . count( $pairs ) . " pairs written.\n";
 139         }
 140 }
 141
 142 $maintClass = GenerateNormalizerDataAr::class;
 143 require_once RUN_MAINTENANCE_IF_MAIN;