maintenance/language/generateUcfirstOverrides.php

   1 <?php
   2 /**
   3  * Generate a php file containg an array of
   4  *   utf8_lowercase => utf8_uppercase
   5  * overrides. Takes as input two json files generated with generateUpperCharTable.php
   6  * as input.
   7  *
   8  * Example run:
   9  * # this will prepare a file to use to make hhvm's Language::ucfirst work like php7's
  10  *
  11  * $ php7.2 maintenance/language/generateUpperCharTable.php --outfile php7.2.json
  12  * $ hhvm --php maintenance/language/generateUpperCharTable.php --outfile hhvm.json
  13  * $ hhvm maintenance/language/generateUcfirstOverrides.php \
  14  *       --override hhvm.json --with php7.2.json --outfile test.php
  15  *
  16  * This program is free software; you can redistribute it and/or modify
  17  * it under the terms of the GNU General Public License as published by
  18  * the Free Software Foundation; either version 2 of the License, or
  19  * (at your option) any later version.
  20  *
  21  * This program is distributed in the hope that it will be useful,
  22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  24  * GNU General Public License for more details.
  25  *
  26  * You should have received a copy of the GNU General Public License along
  27  * with this program; if not, write to the Free Software Foundation, Inc.,
  28  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  29  * http://www.gnu.org/copyleft/gpl.html
  30  *
  31  * @file
  32  * @ingroup MaintenanceLanguage
  33  */
  34
  35 require_once __DIR__ . '/../Maintenance.php';
  36
  37 class GenerateUcfirstOverrides extends Maintenance {
  38
  39         public function __construct() {
  40                 parent::__construct();
  41                 $this->addDescription(
  42                         'Generates a php source file containing a definition for mb_strtoupper overrides' );
  43                 $this->addOption( 'outfile', 'Output file', true, true, 'o' );
  44                 $this->addOption( 'override', 'Char table we want to override', true, true );
  45                 $this->addOption( 'with', 'Char table we want to obtain', true, true );
  46         }
  47
  48         public function execute() {
  49                 $outfile = $this->getOption( 'outfile' );
  50                 $from = $this->loadJson( $this->getOption( 'override' ) );
  51                 $to = $this->loadJson( $this->getOption( 'with' ) );
  52                 $overrides = [];
  53
  54                 foreach ( $from as $lc => $uc ) {
  55                         $ref = $to[$lc] ?? null;
  56                         if ( $ref !== null && $ref !== $uc ) {
  57                                 $overrides[$lc] = $uc;
  58                         }
  59                 }
  60                 $writer = new StaticArrayWriter();
  61                 file_put_contents(
  62                         $outfile,
  63                         $writer->create( $overrides, 'File created by generateUcfirstOverrides.php' )
  64                 );
  65         }
  66
  67         private function loadJson( $filename ) {
  68                 $data = file_get_contents( $filename );
  69                 if ( $data === false ) {
  70                         $msg = sprintf( "Could not load data from file '%s'\n", $filename );
  71                         $this->fatalError( $msg );
  72                 }
  73                 $json = json_decode( $data );
  74                 if ( $result === null ) {
  75                         $msg = sprintf( "Invalid json in the data file %s\n", $filename );
  76                         $this->fatalError( $msg, 2 );
  77                 }
  78                 return $json;
  79         }
  80 }
  81
  82 $maintClass = GenerateUcfirstOverrides::class;
  83 require_once RUN_MAINTENANCE_IF_MAIN;