TC-1/2-Parser Goals

Things to learn during this sub-stage that you should remember:

Basic C++ classes: The Location classes (i.e., parse::position, parse::location, etc.) and their operator s provide a good start to study foreign C++ classes.
Writing and debugging a parser: Learn to use Bison with RE/flex, see RE/flex & Bison. Resolve simple conflicts due to precedences and associativities thanks to directives (e.g., %left etc.) and hard conflicts with loop unrolling. For example, you will need to resolve the important lvalue and array instantiation conflict.
Location Tracking: Understand how to track the location and update it, within the parser.
Inheritance: The AST hierarchy is typical example of a proper use of inheritance.
Inclusion Polymorphism: An intense use of inclusion polymorphism for accept.
Use of Virtual Specifier: Dynamic and static bindings.
misc::indent: misc::indent extends std::ostream with indentation features. Use it in the PrettyPrinter to pretty-print. Understanding how misc::indent works will be checked later, see TC-3 Goals.
The Composite design pattern: The AST hierarchy is an implementation of the Composite pattern.
The Visitor design pattern: The PrettyPrinter is an implementation of the Visitor pattern.
Efficiently debug your AST: The DumperDot is an initial implementation of a displayer to the dot format. It may help you a lot to visualize your AST and debug it.