Test, validate and match regular expressions
Parses waypoint strings in aeronautical coordinate format such as 'A/N52d30.5/E013d24.0'. It captures an optional single-character waypoint name, followed by a latitude field (N/S flag, 1-2 digit degrees, a literal 'd', and 0-59 minutes with optional decimals) and a longitude field (E/W flag, up to 3-digit degrees, minutes), separated by slashes. Useful for GPS data, ARINC 424 aviation waypoint records, and geocaching coordinate parsing.