Hello,

for sure davies's answer is wiser but maybe you are interested to know that also the feared eval string can accomplish the taske:

perl -e "$opts = 'io'; $rex = eval qq(qr/aka/$opts); print 'match' if 
+'ALAKAIA' =~ $rex"

match

[download]

PS infact eval is powerful but dangerous: consider at least to check what was passed in following the good principle never trust user input that can be also read as never trust user or just never trust ;=)

my $opts = $ARGV[0];

die "never trust user input" unless $opts=~/^[msixpodualn]+$/;

...

[download]

L*

There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.

In reply to Re: Is there any way to put regex modifiers into a variable? by Discipulus
in thread Is there any way to put regex modifiers into a variable? by hilitai

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