addOption( 'data-dir', 'A directory on the local filesystem ' . 'containing allkeys.txt and ucd.all.grouped.xml from unicode.org', false, true ); $this->addOption( 'debug-output', 'Filename for sending debug output to', false, true ); } public function execute() { $this->dataDir = $this->getOption( 'data-dir', '.' ); if ( !file_exists( "{$this->dataDir}/allkeys.txt" ) ) { $this->error( "Unable to find allkeys.txt. Please download it from " . "http://www.unicode.org/Public/UCA/latest/allkeys.txt and specify " . "its location with --data-dir=" ); exit( 1 ); } if ( !file_exists( "{$this->dataDir}/ucd.all.grouped.xml" ) ) { $this->error( "Unable to find ucd.all.grouped.xml. Please download it " . "from http://www.unicode.org/Public/6.0.0/ucdxml/ucd.all.grouped.zip " . "and specify its location with --data-dir=" ); exit( 1 ); } $debugOutFileName = $this->getOption( 'debug-output' ); if ( $debugOutFileName ) { $this->debugOutFile = fopen( $debugOutFileName, 'w' ); if ( !$this->debugOutFile ) { $this->error( "Unable to open debug output file for writing" ); exit( 1 ); } } $this->loadUcd(); $this->generateFirstChars(); } function loadUcd() { $uxr = new UcdXmlReader( "{$this->dataDir}/ucd.all.grouped.xml" ); $uxr->readChars( array( $this, 'charCallback' ) ); } function charCallback( $data ) { // Skip non-printable characters, // but do not skip a normal space (U+0020) since // people like to use that as a fake no header symbol. $category = substr( $data['gc'], 0, 1 ); if ( strpos( 'LNPS', $category ) === false && $data['cp'] !== '0020' ) { return; } $cp = hexdec( $data['cp'] ); // Skip the CJK ideograph blocks, as an optimisation measure. // UCA doesn't sort them properly anyway, without tailoring. if ( IcuCollation::isCjk( $cp ) ) { return; } // Skip the composed Hangul syllables, we will use the bare Jamo // as first letters if ( $data['block'] == 'Hangul Syllables' ) { return; } // Calculate implicit weight per UTS #10 v6.0.0, sec 7.1.3 if ( $data['UIdeo'] === 'Y' ) { if ( $data['block'] == 'CJK Unified Ideographs' || $data['block'] == 'CJK Compatibility Ideographs' ) { $base = 0xFB40; } else { $base = 0xFB80; } } else { $base = 0xFBC0; } $a = $base + ( $cp >> 15 ); $b = ( $cp & 0x7fff ) | 0x8000; $this->weights[$cp] = sprintf( ".%04X.%04X", $a, $b ); if ( $data['dm'] !== '#' ) { $this->mappedChars[$cp] = true; } if ( $cp % 4096 == 0 ) { print "{$data['cp']}\n"; } } function generateFirstChars() { $file = fopen( "{$this->dataDir}/allkeys.txt", 'r' ); if ( !$file ) { $this->error( "Unable to open allkeys.txt" ); exit( 1 ); } global $IP; $outFile = fopen( "$IP/serialized/first-letters-root.ser", 'w' ); if ( !$outFile ) { $this->error( "Unable to open output file first-letters-root.ser" ); exit( 1 ); } $goodTertiaryChars = array(); // For each character with an entry in allkeys.txt, overwrite the implicit // entry in $this->weights that came from the UCD. // Also gather a list of tertiary weights, for use in selecting the group header while ( false !== ( $line = fgets( $file ) ) ) { // We're only interested in single-character weights, pick them out with a regex $line = trim( $line ); if ( !preg_match( '/^([0-9A-F]+)\s*;\s*([^#]*)/', $line, $m ) ) { continue; } $cp = hexdec( $m[1] ); $allWeights = trim( $m[2] ); $primary = ''; $tertiary = ''; if ( !isset( $this->weights[$cp] ) ) { // Non-printable, ignore continue; } foreach ( StringUtils::explode( '[', $allWeights ) as $weightStr ) { preg_match_all( '/[*.]([0-9A-F]+)/', $weightStr, $m ); if ( !empty( $m[1] ) ) { if ( $m[1][0] !== '0000' ) { $primary .= '.' . $m[1][0]; } if ( $m[1][2] !== '0000' ) { $tertiary .= '.' . $m[1][2]; } } } $this->weights[$cp] = $primary; if ( $tertiary === '.0008' || $tertiary === '.000E' ) { $goodTertiaryChars[$cp] = true; } } fclose( $file ); // Identify groups of characters with the same primary weight $this->groups = array(); asort( $this->weights, SORT_STRING ); $prevWeight = reset( $this->weights ); $group = array(); foreach ( $this->weights as $cp => $weight ) { if ( $weight !== $prevWeight ) { $this->groups[$prevWeight] = $group; $prevWeight = $weight; if ( isset( $this->groups[$weight] ) ) { $group = $this->groups[$weight]; } else { $group = array(); } } $group[] = $cp; } if ( $group ) { $this->groups[$prevWeight] = $group; } // If one character has a given primary weight sequence, and a second // character has a longer primary weight sequence with an initial // portion equal to the first character, then remove the second // character. This avoids having characters like U+A732 (double A) // polluting the basic latin sort area. foreach ( $this->groups as $weight => $group ) { if ( preg_match( '/(\.[0-9A-F]*)\./', $weight, $m ) ) { if ( isset( $this->groups[$m[1]] ) ) { unset( $this->groups[$weight] ); } } } ksort( $this->groups, SORT_STRING ); // Identify the header character in each group $headerChars = array(); $prevChar = "\000"; $tertiaryCollator = new Collator( 'root' ); $primaryCollator = new Collator( 'root' ); $primaryCollator->setStrength( Collator::PRIMARY ); $numOutOfOrder = 0; foreach ( $this->groups as $weight => $group ) { $uncomposedChars = array(); $goodChars = array(); foreach ( $group as $cp ) { if ( isset( $goodTertiaryChars[$cp] ) ) { $goodChars[] = $cp; } if ( !isset( $this->mappedChars[$cp] ) ) { $uncomposedChars[] = $cp; } } $x = array_intersect( $goodChars, $uncomposedChars ); if ( !$x ) { $x = $uncomposedChars; if ( !$x ) { $x = $group; } } // Use ICU to pick the lowest sorting character in the selection $tertiaryCollator->sort( $x ); $cp = $x[0]; $char = codepointToUtf8( $cp ); $headerChars[] = $char; if ( $primaryCollator->compare( $char, $prevChar ) <= 0 ) { $numOutOfOrder ++; /* printf( "Out of order: U+%05X > U+%05X\n", utf8ToCodepoint( $prevChar ), utf8ToCodepoint( $char ) ); */ } $prevChar = $char; if ( $this->debugOutFile ) { fwrite( $this->debugOutFile, sprintf( "%05X %s %s (%s)\n", $cp, $weight, $char, implode( ' ', array_map( 'codepointToUtf8', $group ) ) ) ); } } print "Out of order: $numOutOfOrder / " . count( $headerChars ) . "\n"; fwrite( $outFile, serialize( $headerChars ) ); } } class UcdXmlReader { var $fileName; var $callback; var $groupAttrs; var $xml; var $blocks = array(); var $currentBlock; function __construct( $fileName ) { $this->fileName = $fileName; } public function readChars( $callback ) { $this->getBlocks(); $this->currentBlock = reset( $this->blocks ); $xml = $this->open(); $this->callback = $callback; while ( $xml->name !== 'repertoire' && $xml->next() ); while ( $xml->read() ) { if ( $xml->nodeType == XMLReader::ELEMENT ) { if ( $xml->name === 'group' ) { $this->groupAttrs = $this->readAttributes(); } elseif ( $xml->name === 'char' ) { $this->handleChar(); } } elseif ( $xml->nodeType === XMLReader::END_ELEMENT ) { if ( $xml->name === 'group' ) { $this->groupAttrs = array(); } } } $xml->close(); } protected function open() { $this->xml = new XMLReader; $this->xml->open( $this->fileName ); if ( !$this->xml ) { throw new MWException( __METHOD__.": unable to open {$this->fileName}" ); } while ( $this->xml->name !== 'ucd' && $this->xml->read() ); $this->xml->read(); return $this->xml; } /** * Read the attributes of the current element node and return them * as an array * @return array */ protected function readAttributes() { $attrs = array(); while ( $this->xml->moveToNextAttribute() ) { $attrs[$this->xml->name] = $this->xml->value; } return $attrs; } protected function handleChar() { $attrs = $this->readAttributes() + $this->groupAttrs; if ( isset( $attrs['cp'] ) ) { $first = $last = hexdec( $attrs['cp'] ); } else { $first = hexdec( $attrs['first-cp'] ); $last = hexdec( $attrs['last-cp'] ); unset( $attrs['first-cp'] ); unset( $attrs['last-cp'] ); } for ( $cp = $first; $cp <= $last; $cp++ ) { $hexCp = sprintf( "%04X", $cp ); foreach ( array( 'na', 'na1' ) as $nameProp ) { if ( isset( $attrs[$nameProp] ) ) { $attrs[$nameProp] = str_replace( '#', $hexCp, $attrs[$nameProp] ); } } while ( $this->currentBlock ) { if ( $cp < $this->currentBlock[0] ) { break; } elseif ( $cp <= $this->currentBlock[1] ) { $attrs['block'] = key( $this->blocks ); break; } else { $this->currentBlock = next( $this->blocks ); } } $attrs['cp'] = $hexCp; call_user_func( $this->callback, $attrs ); } } public function getBlocks() { if ( $this->blocks ) { return $this->blocks; } $xml = $this->open(); while ( $xml->name !== 'blocks' && $xml->read() ); while ( $xml->read() ) { if ( $xml->nodeType == XMLReader::ELEMENT ) { if ( $xml->name === 'block' ) { $attrs = $this->readAttributes(); $first = hexdec( $attrs['first-cp'] ); $last = hexdec( $attrs['last-cp'] ); $this->blocks[$attrs['name']] = array( $first, $last ); } } } $xml->close(); return $this->blocks; } } $maintClass = 'GenerateCollationData'; require_once( RUN_MAINTENANCE_IF_MAIN );