It's strictly a style comment, and I apologize for that; but perhaps you might like to abbreviate the work, this way:
sub untaint ($$$) {
my ($q,$name,$re) = @_;
my $tainted = $q->param($name);
my ($untainted) = $tainted =~ m/^($re)$/);
badinputerror($q) unless($untainted);
return $untainted;
}
# $untainted will be undefined if there is no match.
mkmcconn
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