Just stuff it in an anonymous subroutine e.g 
my $last_in_sentence = sub { $content_array[$location] =~ m/\. $/s };

if(&$last_in_sentence) { ... }

[download]
See. perlsub and perlref for more info.
HTH

_________
broquaint

In reply to Re: expressions as constants by broquaint
in thread expressions as constants by rtlm

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