Intento de tarea 1, Prolog

Intento de tarea 1

objeto :- write('{'),aux1, write('}').
aux1 :- read(X),(X='atributo'->atributo;
                 X='fin'->write('')).
atributo :-cadena, write(':'),valor,aux2.
arreglo :- write('['),aux3, write(']').
aux2 :- read(X),(X='atributo'->write(','),atributo;
                 X='fin'->write('')).
aux3 :- read(X),(X='valor'->valor,aux4;
                 X='fin'->write('')).
aux4 :- read(X),(X='valor'->write(','),valor,aux4;
                 X='fin'->write('')).
aux5 :- read(X),(X='valor'->write(','),valor,aux5;
                 X='fin'->write('')). 
aux6 :- read(X),(X='valor'->write(','),valor,aux6;
                 X='fin'->write('')).   
aux7 :- read(X),(X='valor'->write(','),valor,aux7;
                 X='fin'->write('')).
aux8 :- read(X),(X='valor'->write(','),valor,aux8;
                 X='fin'->write('')).                
aux9 :- read(X),(X='valor'->write(','),valor,aux9;
                 X='fin'->write('')).
aux10 :- read(X),(X='valor'->write(','),valor,aux10;
                 X='fin'->write('')).
                 
cadena :- read(X),write('"'),write(X),write('"').
numero :- read(X),write(X).
valor :-read(T),(T='cadena'->cadena;
                 T='numero'->numero;
                 T='arreglo'->arreglo;
                 T='objeto'->objeto).
:- objeto.


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