While testing this again with tr/ in mind, I decided to see how much faster it would be if I got rid of all the regex in the tests, and replaced them with tr/ with the numeric values and count, and ended up with a 4x (!) speed improvement over the pure regex sequence of tests.

I also discovered that there is no obvious difference between

(my $c = $_[0] =~ tr/.// ) <= 1
## and
($_[0] =~ tr/.// ) <= 1

[download]

which I assume means I stumbled onto another secret operator (the wrapping parentheses), which suggests to me that I should study these more to become more aware of this area of Perl.

In reply to 4x faster now! by h2
in thread Syntax Perl Version support $c = () = $a =~ /\./g by h2

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