... Class of attribute sets, designed for parsing and storing attribute values . ... An attribute set is a map containing an entry for each parameter. The default parameter (unnamed quoted string) is named _DEFAULT in the map. ... The one exception to this is the _DEFAULT key, where . ... As well as the default TWiki syntax (parameter values double-quoted) this class also parses single-quoted values, unquoted spaceless values, spaces around the =, and commas as well as spaces separating values. ...