Lexer and parser library for geographic point string values.

composer require longitude-one/geo-parser

There are two use patterns for the parser. The value to be parsed can be passed into the constructor, then parse() called on the returned Parser object:

$input  = '79°56′55″W, 40°26′46″N';

$parser = new Parser($input);

$value = $parser->parse(); // [-79.948611111111, 40.446111111111]

If many values need to be parsed, a single Parser instance can be used:

$input1 = '56.242 E';
$input2 = '40:26:46 S';

$parser = new Parser();

$value1 = $parser->parse($input1); //56.242
$value2 = $parser->parse($input2); //-40.446111111111

Both single values and pairs are supported. Some samples of supported formats are below, though not every possible iteration may be explicitly specified:

1. Simple single-signed values

• 40
• -40
• -8.543
• +132
• +77.2

2. Simple single signed values with degree symbol

• 40°
• -40°
• -5.234°
• +43°
• +38.43°

3. Single unsigned values with or without degree symbol, and cardinal direction

• 40° N
• 40 S
• 56.242 E

4. Single values of signed integer degrees with degree symbol, and decimal minutes with apostrophe

• 40° 26.222'
• -65° 32.22'
• +165° 52.22'

5. Single values of unsigned integer degrees with degree symbol, decimal minutes with apostrophe, and cardinal direction

• 40° 26.222' E
• 65° 32.22' S

6. Single values of signed integer degrees with degree symbol, integer minutes with apostrophe, and optional integer or decimal seconds with quote

• 40° 26' 46"
• -79° 58' 56"
• 93° 19' 25.8"
• +120° 19' 25.8"

6. Single values of signed integer degrees with colon symbol, integer minutes, and optional colon and integer or decimal seconds

• +40:26:46
• -79:58:56
• 93:19:25.8

7. Single values of unsigned integer degrees with degree symbol, integer minutes with apostrophe, optional integer or decimal seconds with quote, and cardinal direction

• 40° 26' 46" S
• 99° 58' 56" W
• 44° 58' 53.9" N

7. Single values of unsigned integer degrees with colon symbol, integer minutes with, optional colon and integer or decimal seconds, and cardinal direction

• 40:26:46 S
• 99:58:56 W
• 44:58:53.9 N

8. Two of any one format separated by whitespace

9. Two of any one format separated by a comma

The parser will return an integer/float or an array containing a pair of these values.

The Lexer and Parser will throw exceptions implementing interface LongitudeOne\Geo\String\Exception\ExceptionInterface.