convert list of list of list to atom or string

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convert list of list of list to atom or string

by tvchim :: Rate this Message:

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Sir, I use swi-prolog 5.6 to call class java . My problems are
1. I must convert list of lists of lists to atom or string ,but there are errors as ;
atom_codes(Pa,Parses),  Parses = list of lists of lists

ERROR: (c:/thesis/gfulab/load.pl:4):
        atom_chars/2: Type error: `text' expected, found `[[[wordtype=NOUN, head=nectec, sem=[pred=NECTEC, ntype=NPRP, ontology=enterprise]]]]'
Warning: (c:/thesis/gfulab/load.pl:4):
        Goal (directive) failed: user:main


atom_codes(Pa,Parses),  Parses = list of lists of lists


ERROR: (c:/thesis/gfulab/load.pl:4):
        atom_codes/2: Type error: `text' expected, found `[[wordtype=NOUN, head= nectec, sem=[pred=NECTEC, ntype=NPRP, ontology=enterprise]]]'
Warning: (c:/thesis/gfulab/load.pl:4):
        Goal (directive) failed: user:main
% c:/thesis/gfulab/load.pl compiled 1.02 sec, 826,976 bytes


string_to_list(Pa,P),    P = list of lists of lists
string_to_atom(Pa,Parse),

ERROR: (c:/thesis/gfulab/load.pl:4):
        string_to_list/2: Arguments are not sufficiently instantiated
Warning: (c:/thesis/gfulab/load.pl:4):
        Goal (directive) failed: user:main
% c:/thesis/gfulab/load.pl compiled 1.00 sec, 1,008 bytes


prolog code as :
 procr(show(cg=L)) :-
              findall(M,recorded(matrix,M,_),Parses),!,
              forall( member(P,Parses),
                (write('==>'), pp_f_structure(synt,L,7,P) ) ),
               
               findall(M,recorded(matrix,M,_),Parses),!,
               forall( member(P,Parses),
                (write('==>'),dmember(sem=S,P),!,pp_f_structure(sem,L,7,S) ) ),
               
                             
             string_to_list(Pa,Parses),
             string_to_atom(Pa,Parse),
              jpl_new('Cgraph',Parse,F),
              jpl_call(F,startCg,[@(true)],@void).

java code as:

public static void main(String[] args)
        {
                     String listStr;
                          Cgraph  cg = new Cgraph(listStr);
                cg.startCg();
        } // end main