Don't enclose variables in doublequotes!

s/(\${\w+})/find_value_for_var("$1")/e is better written as s/(\${\w+})/find_value_for_var($1)/e! While in this case the quotes cannot "break" the script, it forces Perl to make an additional copy of the matched string each time the regexp matches.

I wish "$var" trigered a warning. While I admit there are valid reasons to do that I bet they make up at most 0.01% of the times it's used. :-(

Jenda
Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live.
   -- Rick Osborne

Edit by castaway: Closed small tag in signature

In reply to Re: Re: replacing "dynamic" variables by Jenda
in thread replacing "dynamic" variables by emilford

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