A vCalendar parser.

Adds support for parsing vToDos and vEvents, and associated alarms (see CParserPropertyValueAlarm) to the functionality of CVersitParser.

Adds a constructor and overrides CVersitParser::InternalizeL() for streams, ExternalizeL() for streams, RecognizeToken(), RecognizeEntityName() and MakeEntityL().

The vCalendar data is read from or written to a stream or file, using the InternalizeL() and ExternalizeL() functions. Most users of this class will only need to use these functions.

Note: if you are sequentially creating and destroying multiple parsers, a major performance improvement may be achieved by using thread local storage to store an instance of CVersitUnicodeUtils which persists and can be used by all of the parsers.

See CVersitTlsData for more information.