Re^2: Generate a truth table from input string

[Anonymous Monk]

the problem that i am facing is, NOT is represented by both ! and ', variables could be !(A)+!(B)+!(C) or A'+B'+C', both mean the same. how do i do it?

[psini]

s/(\w+)'/!\1/g

[toolic]

or as use warnings; would say...

\1 better written as $1

and use diagnostics; would elaborate...

    (W syntax) Outside of patterns, backreferences live on as variable
+s.
    The use of backslashes is grandfathered on the right-hand side of 
+a
    substitution, but stylistically it's better to use the variable fo
+rm
    because other Perl programmers will expect it, and it works better
+ if
    there are more than 9 backreferences.

[ikegami]

Is (a+b)' disallowed?