The pattern is structured as follows:
1. URL group:
   - Handles various URL protocols, special characters (like $ in password), and query parameters
   - Each URL is explicitly matched due to their complexity
2. User ID group:
   - Matches USR-YYYY-XXX-NNNN pattern
   - Uses character classes for year, letters, and numbers
3. Product code group:
   - Matches XNN.N-YYYY/REVN pattern
   - Uses specific formats for numbers and revision numbers
4. Equation group:
   - Matches the exact mathematical equations
   - Escapes special characters like |, √, (, ), etc.
5. Configuration group:
   - Matches the exact configuration parameters
   - Handles special characters like dots, equals, hash symbols

The groups are combined using alternation (|) and each special character is properly escaped. The pattern is designed to match exactly the target strings without matching similar but incorrect strings in the text.