Heh heh ... thwack away! ;)

"... is it simply an issue of pre-emptive maintenance coding headache prevention?"

I think so. What if you suddenly decide that the string you need to match needs to be dynamic? You forget to remove the o modifer and possibly spend a lot of time trying to find the bug when your regex stops matching. Here is some code to demonstrate: 
@data = qw(foo bar baz qux);
{
   print "search: ";
   chomp ($in = <STDIN>);
   last unless $in;
   print $_,$/ for grep /\Q$in\E/o, @data;
   redo;
}

[download]
I figure why bother with such premature optimizations if they have the potential to bite.

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)

In reply to (jeffa) 3Re: (USING POE!) Re: 'better mousetrap': how to perform timed event by jeffa
in thread 'better mousetrap': how to perform timed event by snafu

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