By value, I mean lvalues and rvalues, and in the case of Perl, the SV node thing not necessarily bound to any symbol. You must have a background in Functional Programming, where values never change--they are replaced by a whole new value.
Comment on Re: Re: Is Taint just another property?
That does not make any sense. lvalue and rvalue
are contexts, how do you want to tag them
with properties? A variable can be used as an rvalue in one
statement, and as lvalue in the next.
You must have a background in Functional Programming, where values never change
Values don't change in Perl either. If you do think values
change, please give a code example. Functional Programming
doesn't have side effects, hence no variables changing value.