read file and construct facts in prolog

Question

I would like to construct a mechanism that constructs different facts depending from txt file, imported in prolog. I already have found some examples where they directly assert

Answer 1

You can do any 'normal' prolog in a DCG by enclosing it in {}

some_nonterminal --> "fridge", blanks, [X], { % you can put any normal Prolog code in here assert(fridge_named(X)) }.

This looks for a sequence like

fridge G

and asserts fridge_named(0x47) in the database (Ascii G is 0x47)