Generating Code and Documentation from Lightweight Abstract Grammars

Abstract grammars are used in papers when toy languages are described. For the development of language processing tools it is also useful to have a short and explicit description of the abstract grammar of the language being processed. This paper presents a little language for expressing lightweight abstract grammars, a little language for writing templates that refer to the information in the abstract grammar, and the tool to process these. The tool generates, for example, code for the Abstract Syntax Tree (AST) data structures, a table view and a graphical view of the abstract grammar.