- return autoPtr<token::compound> instead of the derived type,
otherwise cannot easily construct a token from it
ENH: additional typed version of refCompoundToken()
- symmetric with typed version of transferCompoundToken()
and isCompound()
- add ITstream::findCompound<Type>() method.
Useful for searching within token streams
- allows construction of string tokens holding character content.
For example, data that has been serialized and buffered and that
now needs to be written or sent to another process.