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<?php |
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declare( strict_types = 1 ); |
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namespace DataValues\Geo\Parsers; |
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use ValueParsers\ParseException; |
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/** |
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* @since 0.1 |
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* |
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* @license GPL-2.0-or-later |
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* @author Jeroen De Dauw < [email protected] > |
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* @author H. Snater < [email protected] > |
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*/ |
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class FloatCoordinateParser extends LatLongParserBase { |
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public const FORMAT_NAME = 'float-coordinate'; |
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/** |
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* @see LatLongParserBase::getParsedCoordinate |
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* |
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* @param string $coordinateSegment |
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* |
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* @return float |
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*/ |
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protected function getParsedCoordinate( string $coordinateSegment ): float { |
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return (float)$this->resolveDirection( str_replace( ' ', '', $coordinateSegment ) ); |
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} |
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/** |
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* @see LatLongParserBase::areValidCoordinates |
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* |
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* @param string[] $normalizedCoordinateSegments |
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* |
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* @return bool |
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*/ |
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protected function areValidCoordinates( array $normalizedCoordinateSegments ): bool { |
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// TODO: Implement localized decimal separator. |
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$baseRegExp = '\d{1,3}(\.\d{1,20})?'; |
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// Cache whether the coordinates are specified in directional format (a mixture of |
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// directional and non-directional is regarded invalid). |
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$directional = false; |
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$match = false; |
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foreach ( $normalizedCoordinateSegments as $i => $segment ) { |
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$segment = str_replace( ' ', '', $segment ); |
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$direction = '(' |
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. $this->getOption( self::OPT_NORTH_SYMBOL ) . '|' |
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. $this->getOption( self::OPT_SOUTH_SYMBOL ) . ')'; |
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if ( $i === 1 ) { |
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$direction = '(' |
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. $this->getOption( self::OPT_EAST_SYMBOL ) . '|' |
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. $this->getOption( self::OPT_WEST_SYMBOL ) . ')'; |
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} |
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$match = preg_match( |
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'/^(' . $baseRegExp . $direction . '|' . $direction . $baseRegExp . ')$/i', |
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$segment |
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); |
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if ( $directional && !$match ) { |
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// Latitude is directional, longitude not. |
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break; |
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} elseif ( $match ) { |
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continue; |
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} |
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$match = preg_match( '/^(-)?' . $baseRegExp . '$/i', $segment ); |
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if ( !$match ) { |
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// Does neither match directional nor non-directional. |
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break; |
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} |
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} |
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return ( 1 === $match ); |
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} |
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/** |
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* @see LatLongParserBase::splitString |
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* |
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* @param string $normalizedCoordinateString |
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* |
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* @throws ParseException if unable to split input string into two segments |
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* @return string[] |
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*/ |
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protected function splitString( string $normalizedCoordinateString ): array { |
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$separator = $this->getOption( self::OPT_SEPARATOR_SYMBOL ); |
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$normalizedCoordinateSegments = explode( $separator, $normalizedCoordinateString ); |
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if ( count( $normalizedCoordinateSegments ) !== 2 ) { |
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// Separator not present within the string, trying to figure out the segments by |
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// splitting at the the first SPACE after the first direction character or digit: |
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$numberRegEx = '-?\d{1,3}(\.\d{1,20})?'; |
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$ns = '(' |
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. $this->getOption( self::OPT_NORTH_SYMBOL ) . '|' |
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. $this->getOption( self::OPT_SOUTH_SYMBOL ) .')'; |
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$latitudeRegEx = '(' . $ns . '\s*)?' . $numberRegEx . '(\s*' . $ns . ')?'; |
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$ew = '(' |
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. $this->getOption( self::OPT_EAST_SYMBOL ) . '|' |
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. $this->getOption( self::OPT_WEST_SYMBOL ) .')'; |
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$longitudeRegEx = '(' . $ew . '\s*)?' . $numberRegEx . '(\s*' . $ew . ')?'; |
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$match = preg_match( |
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'/^(' . $latitudeRegEx . ') (' . $longitudeRegEx . ')$/i', |
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$normalizedCoordinateString, |
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$matches |
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); |
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if ( $match ) { |
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$normalizedCoordinateSegments = [ $matches[1], $matches[7] ]; |
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} |
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} |
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if ( count( $normalizedCoordinateSegments ) !== 2 ) { |
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throw new ParseException( |
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'Unable to split input into two coordinate segments', |
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$normalizedCoordinateString, |
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self::FORMAT_NAME |
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); |
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} |
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return $normalizedCoordinateSegments; |
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} |
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} |
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DataValues /
Geo
