I would suggest not allowing the users to chose wether or not their search is case insensitive.
Then you could strip out the leading and trailing /'s if somebody were to enter your Perl-knowledgeable regex. Change all
lonely *'s to .+?'s or some such. Eval it to make sure it's valid. then do your search.

From the Ram Book 
sub is_valid_pattern {
    my $pat = shift;
    return eval { "" =~ /$pat/; 1 } || 0;
}

[download]

In reply to Re: How can grep search based on text or pattern based on user input? by Anonymous Monk
in thread How can grep search based on text or pattern based on user input? by Russ

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