creof/geo-parser

Parser for geography coordinate strings

0.0.7 2014-04-01 14:05 UTC

README

Lexer and parser library for geometric and geographic string values.

This library is used in the creof/geo library.

Sample code can be found in the unit tests.

Supported Formats

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"
  7. 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
  8. 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
  9. 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
  10. Two of any one format separated by space(s)

  11. Two of any one format separated by a comma

Return

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

Todo

  • Match pairs contained in parenthesis?
  • Allow colon as a separator? (like 108:53:94W)