[Info-gnuprologjava] FW: problem in creating complex prolog queries , queries created by conjugating more that 5 simple queries .

[Suman Roy]

 

Hello ,

 

   I want to construct a complex prolog query with the help of  “ gnu prolog “  jar file  , which will be conjugation of 5 simple prolog queries .

 

For instance :   :-   p (a) ,  q(b), r(c), s(d ), l(e )  .

 

  But gnu prolog is showing an error message , “ The goal is not currently active  ”. Can you please let me what can be done to create such queries?

 

 

rules_01.pl file  :

--------

p (a).

q(b).

r(c).

s(d ).

l(e )  .

 

Code snippet :

-----------------

 

Term t1[] =  {AtomTerm.get("a")};

Term t2[] =  {AtomTerm.get("b")};

  Term t3[] =  {AtomTerm.get("c")};

  Term t4[] =  {AtomTerm.get("d")};

  Term t5[] = {AtomTerm.get("e”)};

 

CompoundTerm ct1=new CompoundTerm("p",t1);

 CompoundTerm ct2=new CompoundTerm("q",t2);

CompoundTerm ct3=new CompoundTerm("r",t3);

CompoundTerm ct4=new CompoundTerm("s",t4);

CompoundTerm ct5=new CompoundTerm("l",t5);

 

String functor = ",";

CompoundTerm mt1 = new CompoundTerm(functor, 2);

mt1.args[0]=ct1;

mt1.args[1]=ct2;

CompoundTerm mt2 = new CompoundTerm(functor, 2);

 

mt2.args[0]=mt1;

mt2.args[1]=ct3;

 

CompoundTerm mt3 = new CompoundTerm(functor, 2);

mt3.args[0]=mt2;

mt3.args[1]=ct4;

 

CompoundTerm mt4 = new CompoundTerm(functor, 2);

mt3.args[0]=mt3;

mt3.args[1]=ct5;

 

 

            int rc = in.runOnce(mt4);

 

 

 

 

 

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