Test, validate and match regular expressions
Matches Indonesian/Malay location-based search queries starting with 'dekat' or 'deket' (meaning 'near'). Captures the location name and optionally a radius with unit (km or m). Supports two formats: with radius specification (e.g., 'dekat Jakarta radius 5 km') and without (e.g., 'deket Bandung'). Useful for parsing proximity search commands.