kex module documentation has:
3.4. setbflag(flag [, branch])
flag - the index of the branch flag to be set. Can be integer or
pseudo-variable with integer value.
are quotes "" always required?
setbflag(1);
does not give an error (or at least i cannot find one from among all
those debug messages that seem to be on by default).
if quotes are required, is it sure that if string is an int, it will be
evaluated when the script is processed and not when script is run?
-- juha