Scaffolding for Software Renovation

We discuss an approach that explores the use of scaaolding of source code to facilitate its renovation. We show that scaaolding is a useful paradigm for software renovation. We designed syntax and semantics for scaaolding, that enables all relevant applications of scaaolding. The automatic generation of extensions to a normal grammar, so that the resulting extension grammar can parse code with scaaolding, is discussed. We used the scaaolding paradigm itself to implement the generation process, thereby showing that our approach towards scaaolding is also useful in software development. Finally, we discuss real-world applications of scaaolding for software renovation, in both our own work and work from people in the reengineering IT industry.