|| This assignment consists of three subparts:
For the classes of the abstract syntax tree a framework is provided
on the WWW in the file Tree.java.
For extending the parser you will sometimes need arrays of subtrees.
You can use TreeArrayBuffer.java
for doing this.
- implement all abstract syntax tree classes,
- extend the parser to generate abstract syntax trees, and
- write a pretty printer for abstract syntax trees.
There is also a framework for the pretty printer:
Printer.java. This pretty printer
uses the concept of a visitor. You will need the pretty printer
to check, whether you built a correct tree. It is not neccessary
to give out correct J0 and it does not matter if you have