GTB is an integrated system for manipulating grammar-like language descriptions.
GTB's programming language has built-in types for things like grammar rules, parse tables and derivation trees as well as the more conventional types such as integers and strings. There is a set of built-in methods for constructing, say, parse tables from grammar rules and for displaying properties of grammars such as the strings generated by the grammar and derivations of strings that are in the language's grammar.
Download GTB version 2.51 for Windows
This version is the same as version 2.5 dated November 2005 except that we have improved the documentation and added PDF versions of the manuals.