You could always use the qr// operator to compile the regex and check the success of the compilation using eval.

my $pat = <STDIN>; # random nonsense from a user
my $re = eval { qr/$pat/ };

die "Nasty regex!: $@\n" if $@;

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<http://www.dave.org.uk>

"Perl makes the fun jobs fun
and the boring jobs bearable" - me

In reply to Re: Checking user input on dynamic regular expressions by davorg
in thread Checking user input on dynamic regular expressions by cLive ;-)

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