Here's an interesting exercise for beginners. You have an array of
strings, and you want to sort them but in a case-insensitive manner. You
are doing this in two different places in your code. In one place, you
write:
# convert the strings to lowercase when comparing
my @sorted = sort { lc($a) cmp lc($b) } @data;
And then later in your code, forgetting how you'd done it before, you use:
# convert the strings to uppercase when comparing
my @ordered = sort { uc($a) cmp uc($b) } @data;
But this gives you a headache: the arrays AREN'T IDENTICAL.
The puzzle to you is to determine the reason and sample data that
demonstrates the problem.
--
Jeff "japhy" Pinyan % How can we ever be the sold short or
RPI Acacia Brother #734 % the cheated, we who for every service
http://japhy.perlmonk.org/ % have long ago been overpaid?
http://www.perlmonks.org/ % -- Meister Eckhart
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