I'm constructing a regex that uses alternation (|) to match exactly the target items. For each item:
1. I escape special regex characters (., +, *, ?, ^, $, (, ), [, ], {, }, |, \, /) with backslashes
2. For email addresses, I escape @ and . characters
3. For phone numbers, I escape parentheses and + sign
4. For dates with formats MM/DD/YYYY, YYYY-MM-DD, and YYYY.MM.DD, I escape . and /
5. For the ISO date with timestamp, I escape the T and Z literals
6. For IDs and references with special characters, I escape :, [, ], {, and }
7. For currency amounts, I escape the $ and . characters
8. For CONFIG entries, I escape <, >, =, and " characters
9. For log entries, I escape the <, >, : characters

The alternation operator (|) is used to create a pattern that matches any one of these exact strings.