Adrian Johnstone, Elizabeth Scott, Giorgios R. Economopoulos. The GTB and PAT tools. Electronic Notes in Theoretical Computer Science, 110:173-175, 2004. [doi]
The Grammar Tool Box is a toolset for manipulating Context Free Grammars and objects asso- ciated with them such as parsers, languages and derivations. GTB has three main rôles: as a pedagogic tool; as an experimental platform for novel algorithms and representations; and as a production tool for translator front end generation. In this tool demonstration we give an overview of GTB and its companion Java-based animator tool PAT.