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-rw-r--r--maintenance/language/generateNormalizerData.php137
1 files changed, 137 insertions, 0 deletions
diff --git a/maintenance/language/generateNormalizerData.php b/maintenance/language/generateNormalizerData.php
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+++ 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 );
+