BillKSmith
Veteran
Oct 24, 2012, 4:10 AM
Post #2 of 4
(533 views)
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Re: [pedrete] Using Regular expresions stored in a scalar
[In reply to]
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use warnings;
use strict;
my $i=qr/hello/;
if ("helloeverybody" =~ $i) {
print " OK ";
}
Strict and warnings are not required, but I strongly recommend that you develop the habit of always using them.
The my (refer: perdoc -f my) is required by strict.
The qr (refer to the section "quote and quotelike operators" in perdoc perlop) tells perl that the string is a regular expression and usually compiles it.
Regular expressions can be stored as strings, but then you need the slashes where they are used, not in the definition.
Good Luck,
Bill
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