+<?php
+/**
+ * Generate a php file containg an array of
+ * utf8_lowercase => utf8_uppercase
+ * overrides. Takes as input two json files generated with generateUpperCharTable.php
+ * as input.
+ *
+ * Example run:
+ * # this will prepare a file to use to make hhvm's Language::ucfirst work like php7's
+ *
+ * $ php7.2 maintenance/language/generateUpperCharTable.php --outfile php7.2.json
+ * $ hhvm --php maintenance/language/generateUpperCharTable.php --outfile hhvm.json
+ * $ hhvm maintenance/language/generateUcfirstOverrides.php \
+ * --override hhvm.json --with php7.2.json --outfile test.php
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup MaintenanceLanguage
+ */
+
+require_once __DIR__ . '/../Maintenance.php';
+
+class GenerateUcfirstOverrides extends Maintenance {
+
+ public function __construct() {
+ parent::__construct();
+ $this->addDescription(
+ 'Generates a php source file containing a definition for mb_strtoupper overrides' );
+ $this->addOption( 'outfile', 'Output file', true, true, 'o' );
+ $this->addOption( 'override', 'Char table we want to override', true, true );
+ $this->addOption( 'with', 'Char table we want to obtain', true, true );
+ }
+
+ public function execute() {
+ $outfile = $this->getOption( 'outfile' );
+ $from = $this->loadJson( $this->getOption( 'override' ) );
+ $to = $this->loadJson( $this->getOption( 'with' ) );
+ $overrides = [];
+
+ foreach ( $from as $lc => $uc ) {
+ $ref = $to[$lc] ?? null;
+ if ( $ref !== null && $ref !== $uc ) {
+ $overrides[$lc] = $uc;
+ }
+ }
+ $writer = new StaticArrayWriter();
+ file_put_contents(
+ $outfile,
+ $writer->create( $overrides, 'File created by generateUcfirstOverrides.php' )
+ );
+ }
+
+ private function loadJson( $filename ) {
+ $data = file_get_contents( $filename );
+ if ( $data === false ) {
+ $msg = sprintf( "Could not load data from file '%s'\n", $filename );
+ $this->fatalError( $msg );
+ }
+ $json = json_decode( $data );
+ if ( $result === null ) {
+ $msg = sprintf( "Invalid json in the data file %s\n", $filename );
+ $this->fatalError( $msg, 2 );
+ }
+ return $json;
+ }
+}
+
+$maintClass = GenerateUcfirstOverrides::class;
+require_once RUN_MAINTENANCE_IF_MAIN;