built in statements: for

for:
    description:
        for( var|x> in superposition):
            statements ...
        end:

        for each ket in superposition, set var|x> to that ket
        and then compile and run the given statements
        If instead you specify a sequence, then repeat the above for each superposition in that sequence

    examples:
    see also:
        sfor, while, op-for, op-sfor, test-for.sw3