Designer Cloud on AWSTrifacta ApplicationWrangle LanguageOther Language TopicsOther Language TopicsText MatchingEscaping Strings in TransformationsPattern Clause Position MatchingString Collation RulesSupported Special Regular Expression CharactersCapture Group ReferencesValid Data Type StringsData Type Validation PatternsStructure of a URLLanguage Documentation Syntax NotesSource Metadata ReferencesColumn Reference Syntax