Syntax FACTORY_DEF * StringValueFactory [FACTORY_NAME ] [INPUT FEATURE_TYPE [ ]* []*]* FACTORY_MODE [ ]* [OUTPUT FEATURE_TYPE [ ]* []*]* Overview This factory performs various string attribute value manipulations based on the FACTORY_OPERATION keyword's value. It is intended to be a reusable factory for simple "fetch attribute, perform action, set attribute" operations to reduce parsing/factory boilerplate. Clauses For the ATTRIBUTE_TRIMMER mode: SRC_ATTRS TRIM_TYPE [TRIM_CHARS ] TRIM_TO_NONE Output Tags OUTPUT For the ATTRIBUTE_SEARCHER mode: MATCHED NOT_MATCHED