MediaWiki 1.16.0

[autoinstallsdev/mediawiki.git] / maintenance / language / generateNormalizerData.php

diff --git a/maintenance/language/generateNormalizerData.php b/maintenance/language/generateNormalizerData.php
new file mode 100644 (file)
index 0000000..d6b7aaa
--- /dev/null
+++ b/maintenance/language/generateNormalizerData.php
@@ -0,0 +1,137 @@
+<?php
+
+require_once( dirname( __FILE__ ) . '/../Maintenance.php' );
+
+require_once( dirname( __FILE__ ) . '/../../includes/normal/UtfNormalUtil.php' );
+
+/**
+ * Generates normalizer data files for Arabic and Malayalam.
+ * For NFC see includes/normal.
+ */
+class GenerateNormalizerData extends Maintenance {
+       var $dataFile;
+
+       public function __construct() {
+               parent::__construct();
+               $this->addOption( 'unicode-data-file', 'The local location of the data file ' .
+                       'from http://unicode.org/Public/UNIDATA/UnicodeData.txt', false, true );
+       }
+
+       public function execute() {
+               if ( !$this->hasOption( 'unicode-data-file' ) ) {
+                       $this->dataFile = 'UnicodeData.txt';
+                       if ( !file_exists( $this->dataFile ) ) {
+                               $this->error( "Unable to find UnicodeData.txt. Please specify its location with --unicode-data-file=<FILE>" );
+                               exit( 1 );
+                       }
+               } else {
+                       $this->dataFile = $this->getOption( 'unicode-data-file' );
+                       if ( !file_exists( $this->dataFile ) ) {
+                               $this->error( 'Unable to find the specified data file.' );
+                               exit( 1 );
+                       }
+               }
+
+               $this->generateArabic();
+               $this->generateMalayalam();
+       }
+
+       function generateArabic() {
+               $file = fopen( $this->dataFile, 'r' );
+               if ( !$file ) {
+                       $this->error( 'Unable to open the data file.' );
+                       exit( 1 );
+               }
+
+               // For the file format, see http://www.unicode.org/reports/tr44/
+               $fieldNames = array(
+                       'Code',
+                       'Name',
+                       'General_Category',
+                       'Canonical_Combining_Class',
+                       'Bidi_Class',
+                       'Decomposition_Type_Mapping',
+                       'Numeric_Type_Value',
+                       'Bidi_Mirrored',
+                       'Unicode_1_Name',
+                       'ISO_Comment',
+                       'Simple_Uppercase_Mapping',
+                       'Simple_Lowercase_Mapping',
+                       'Simple_Titlecase_Mapping'
+               );
+
+               $pairs = array();
+
+               $lineNum = 0;
+               while ( false !== ( $line = fgets( $file ) ) ) {
+                       ++$lineNum;
+
+                       # Strip comments
+                       $line = trim( substr( $line, 0, strcspn( $line, '#' ) ) );
+                       if ( $line === '' ) {
+                               continue;
+                       }
+
+                       # Split fields
+                       $numberedData = explode( ';', $line );
+                       $data = array();
+                       foreach ( $fieldNames as $number => $name ) {
+                               $data[$name] = $numberedData[$number];
+                       }
+
+                       $code = base_convert( $data['Code'], 16, 10 );
+                       if ( ( $code >= 0xFB50 && $code <= 0xFDFF ) # Arabic presentation forms A
+                               || ( $code >= 0xFE70 && $code <= 0xFEFF ) ) # Arabic presentation forms B
+                       {
+                               if ( $data['Decomposition_Type_Mapping'] === '' ) {
+                                       // No decomposition
+                                       continue;
+                               }
+                               if ( !preg_match( '/^ *(<\w*>) +([0-9A-F ]*)$/', 
+                                       $data['Decomposition_Type_Mapping'], $m ) ) 
+                               {
+                                       $this->error( "Can't parse Decomposition_Type/Mapping on line $lineNum" );
+                                       $this->error( $line );
+                                       continue;
+                               }
+
+                               $source = hexSequenceToUtf8( $data['Code'] );
+                               $dest = hexSequenceToUtf8( $m[2] );
+                               $pairs[$source] = $dest;
+                       }
+               }
+
+               global $IP;
+               file_put_contents( "$IP/serialized/normalize-ar.ser", serialize( $pairs ) );
+               echo "ar: " . count( $pairs ) . " pairs written.\n";
+       }
+
+       function generateMalayalam() {
+               $hexPairs = array(
+                       # From http://unicode.org/versions/Unicode5.1.0/#Malayalam_Chillu_Characters
+                       '0D23 0D4D 200D' => '0D7A',
+                       '0D28 0D4D 200D' => '0D7B',
+                       '0D30 0D4D 200D' => '0D7C',
+                       '0D32 0D4D 200D' => '0D7D',
+                       '0D33 0D4D 200D' => '0D7E',
+
+                       # From http://permalink.gmane.org/gmane.science.linguistics.wikipedia.technical/46413
+                       '0D15 0D4D 200D' => '0D7F',
+               );
+
+               $pairs = array();
+               foreach ( $hexPairs as $hexSource => $hexDest ) {
+                       $source = hexSequenceToUtf8( $hexSource );
+                       $dest = hexSequenceToUtf8( $hexDest );
+                       $pairs[$source] = $dest;
+               }
+
+               global $IP;
+               file_put_contents( "$IP/serialized/normalize-ml.ser", serialize( $pairs ) );
+               echo "ml: " . count( $pairs ) . " pairs written.\n";
+       }
+}
+
+$maintClass = 'GenerateNormalizerData';
+require_once( DO_MAINTENANCE );
+