This pattern uses alternation (|) to match each target item exactly. Each item is carefully escaped where needed:
- Email addresses have escaped quotes and brackets
- Special regex metacharacters are escaped with backslashes
- JSON strings have their escaped quotes preserved
- Unicode characters are matched literally
- Nested structures maintain exact bracket/brace matching
The pattern uses a non-capturing group (?:...) with alternation to combine all items, ensuring exact matches without capturing unnecessary groups.