This challenge combines extremely complex patterns that would require sophisticated regex techniques to match accurately:
1. Nested JSON structures with escaped quotes and special characters
2. Email addresses with unusual formats (quotes, IPv6, comments)
3. Timestamps with fractional seconds and timezone offsets in various formats
4. URLs with special characters, authentication, and query parameters
5. Version numbers with build metadata
6. Semantic versioning with pre-release identifiers
7. Ba... (truncated)