Gnu PROLOG

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. GNU Prolog (also called gprolog) is a compiler developed by Daniel Diaz with an interactive debugging environment for Prolog available for Unix, Windows and Mac OS X. It also supports some extensions to Prolog including constraint programming over a finite domain, parsing using definite clause grammars, and an operating system interface. The compiler converts the source code into byte code that can be interpreted by a Warren abstract machine (WAM) and converts that to standalone executables.