Transformations for abstractions

The transformation language Stratego provides high-level abstractions for implementation of a wide range of transformations. Our aim is to integrate transformation in the software development process and make it available to programmers. This requires the transformations provided by the programming environment to be extensible. This paper presents a case study in the implementation of extensible programming environments using Stratego, by developing a small collection of language extensions and several typical transformations for these languages.