Hello nikmit,

This (as expected) matches digits in the range 1-249.

But it also matches 00, 01, 02, etc. This is easily fixed by removing the first ? quantifier:

my $regex = '(2[0-4]|1[0-9])?[0-9]';
[download]

But I would rather use qr here, together with the /x modifier to make it easier to read:

my $regex = qr{ ( 2[0-4] | 1[0-9] )? [0-9] }x;
[download]

Hope that helps,