core + attic (Attic Area): these terms have been either deprecated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

valuePattern

Canonical URL: http://schema.org/valuePattern

Thing > Property > valuePattern

Specifies a regular expression for testing literal values according to the HTML spec.
Values expected to be one of these types
Text
Used on these types
PropertyValueSpecification

Schema Version 3.3