I'm creating an extremely challenging regex problem with four distinct pattern types that would be difficult to match with a single regex:

1. API keys - Two different formats with similar prefixes but varying structures
2. Product SKUs - Consistent format but containing slashes that need escaping
3. Email addresses with plus addressing - Complex local parts with special characters
4. Geographic coordinates in DMS format - Containing special Unicode characters, quotes, and varying digit patterns... (truncated)