Synopsis Combine concrete syntax with abstract syntax.
Description Concrete syntax gives full control over the textual appearance of a language and leads to parse trees
in a standard format (i.e., values of type
Abstract syntax can be designed by the Rascal programmer according to his/her needs regarding the type checking, code generation, transformation, or optimization to be done on the abstract syntax trees.
How can we bridge this gap? We discuss two approaches:
Tree).
Abstract syntax can be designed by the Rascal programmer according to his/her needs regarding the type checking, code generation, transformation, or optimization to be done on the abstract syntax trees.
How can we bridge this gap? We discuss two approaches:
- Manual: a transformation is written manually to convert parse trees to abstract syntax trees.
- Automatic: the library function Rascal:implode is used to automate this transformation.