Regular expression
Validate text against custom patterns using regular expressions.
Settings
- Pattern - Required regex pattern to match against (e.g.,
^\d{3}-\d{2}-\d{4}$)
Validation
- Tests extracted text against the specified regex pattern
- Errors if text doesn't match the pattern
- Case-sensitive matching by default
- Supports standard regex syntax and features
Common Use Cases
- Social security numbers and ID formats
- Phone numbers and postal codes
- Email addresses and URLs
- License plates and serial numbers
- Custom format validation (invoice numbers, etc.)