Pattern Operators

Pattern operators let you match values against custom patterns and regular expressions.

Matches Pattern

Match a value against a regex pattern:

__code__ of **Product** matches pattern "^[A-Z]{3}-\d{4}$"

Interactive Example

Reset

Policy Rule

A **Product** has valid code if __code__ of **Product** matches pattern "^[A-Z]{3}-\d{4}$".

Test Data (JSON)

{ "Product": { "code": "ABC-1234" } }

▶ Run

Matches Regex

An alias for matches pattern:

__zip__ of **Address** matches regex "^\d{5}(-\d{4})?$"

Interactive Example

Reset

Policy Rule

A **Address** has valid zip if __zip__ of **Address** matches regex "^\d{5}$".

Test Data (JSON)

{ "Address": { "zip": "90210" } }

▶ Run

Has the Format

Check if a value matches a named format or pattern:

__phone__ of **Contact** has the format "phone"
__email__ of **User** has format "email"

This is an alternative syntax for the validation operators. It supports the same format names: email, url, uuid, phone, phone number, date, time, datetime, iso8601.

Interactive Example

Reset

Policy Rule

A **User** is valid if __email__ of **User** has the format "email" and __id__ of **User** has the format "uuid".

Test Data (JSON)

{ "User": { "email": "alice@example.com", "id": "550e8400-e29b-41d4-a716-446655440000" } }

▶ Run

Pattern Tips

• Patterns use standard regex syntax
• Escape backslashes in strings: \\d for \d
• Common patterns:
  • US phone: "^\\+?1?[-.\\s]?\\(?\\d{3}\\)?[-.\\s]?\\d{3}[-.\\s]?\\d{4}$"
  • ZIP code: "^\\d{5}(-\\d{4})?$"
  • Product code: "^[A-Z]{2,4}-\\d{3,6}$"
  • Hex color: "^#[0-9a-fA-F]{6}$"

Summary

Operator	Description
matches pattern "..."	Match against regex
matches regex "..."	Alias for matches pattern
has the format "..."	Match against named format
has format "..."	Alias for has the format