Abstract parent of the classes used to represent the different argument types:
- EnvironmentParam
- RequiredParam
- OptionalParam
- RestParam
- KeywordParam
- AuxParam
Class to support mid-stream change of character encoding
to support setExternalFormat operation in Stream.java
Note: extends PushbackReader, but only for its interface;
all methods are overridden.
Class - derived from MalformedInputException -
which holds information required to allow higher level
systems to invoke a lisp restart function to set replacement characters.
Class - derived from UnmappableCharacterException -
which holds information required to allow higher level
systems to invoke a lisp restart function to set replacement characters.