I got a code like this: 
my @ebase = ("A","T");
my $limit = 15;
sub lineOK
{
    ($line) = @_;
    for(@ebase)
    {
        $regex = ("$_.*") x $limit;
        return 0 if($line =~ /$regex/);
    }
    return 1;
}

[download]
and the $regex value will be something like "A.*A.*A.*".. because I want to match $limit A's in the string. is there any way I can make this more efficiently ?

In reply to searching characters by Anonymous Monk

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