*/ protected static function parseCodePoints( string $codePoints ): array { $range = explode( '..', $codePoints ); $start = intval( $range[0], 16 ); $end = isset( $range[1] ) ? intval( $range[1], 16 ) : $start; return [ $start, $end ]; } /** * @return array|string>> */ protected static function parseProperties( string $file ): array { $handle = self::getUnicodeDataResource( $file ); $retVal = []; while ( ( $line = fgets( $handle ) ) !== false ) { if ( $line === "\n" || $line[0] === '#' ) { continue; } [ $data ] = explode( '#', $line ); $data = array_map( 'trim', explode( ';', $data ) ); $data[0] = self::parseCodePoints( $data[0] ); $retVal[] = $data; } fclose( $handle ); usort( $retVal, static function ( array $a, array $b ): int { return $a[0][0] <=> $b[0][0]; } ); return $retVal; } }