GNU Prolog For Java
INTRODUCTION
Hi and welcome to the 0.2.6 release of GPJ!
INSTALLATION
The latest version available is 0.2.6.
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Install Java (version 1.6 or higher)
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Prolog for Java can be found on the main GNU ftp server: http://ftp.gnu.org/gnu/gnuprologjava/ (via HTTP) and ftp://ftp.gnu.org/gnu/gnuprologjava/ (via FTP).
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It can also be found on the GNU mirrors; please use a mirror if possible.
If you are using eclipse and want to contribute; you may want to import the GPJ as an archive.
CONTRIBUTION
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You can submit the issues: https://github.com/drt24/gnuprologjava/issues or https://github.com/rishabhgarg/gnuprologjava-1/issues?state=open
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https://savannah.gnu.org/bugs/?group=gnuprologjava contains a list of bugs in GPJ. You are welcome to submit a patch/issue here
EXAMPLE
//Create an Environment environment (gnu.prolog.vm.Environment)
which provides the core of the prolog environment
gnu.prolog.vm.Environment environment = new Environment();
//Then load any prolog files you want to which define additional predicates
//Say the file contains:
//b(23).
environment.ensureLoaded(AtomTerm.get(Some file));
//Create an Interpreter to execute goals. You need at least one in your program
gnu.prolog.vm.Interpreter interp = environment.createInterpreter();
environment.runInitialization(interp);
//Setting a goal b(X)
VariableTerm term = new VariableTerm("X");
Term[] ter = new Term[1];
ter[0] = term;
//b(X)
CompoundTerm comp = new CompoundTerm("b",ter);
System.out.println(term.dereference()); will print 23.
Arbitrarily complex Prolog goals can be handled with using GPJ.
DOCUMENTATION
Can be found here: http://www.gnu.org/software/gnuprologjava/api/ (Under extensive expansion)
Please write to [email protected] to have your queries handled personally.
You can also write and participate in the discussions by using the official mailing list [email protected].
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