How do I create a switch or case statement?

       This is explained in more depth in the perlsyn.  Briefly, there's no
       official case statement, because of the variety of tests possible in
       Perl (numeric comparison, string comparison, glob comparison, regex
       matching, overloaded comparisons, ...).  Larry couldn't decide how best
       to do this, so he left it out, even though it's been on the wish list
       since perl1.

      ...