Hi Monks, I have a string and I want to add something to it, if it does not already have it.
I though that the following code, should do it: 
unless ($args =~ /\-rs(\s+)(\S+)/ && $args =~ /\-p(\s+)(\S+)/ && $args
+ =~ /\-P(\s+)(\S+)/) {
   $args .= " --rs $str";
}

[download]
The idea: 
if ($args =~ /\-rs(\s+)(\S+)/ || $args =~  /\-p(\s+)(\S+)/ || $args =~
+  /\-P(\s+)(\S+)/) {
    // do nothing
} else {
    $args .= " --rs $str";
}

[download]
Then I understood that it should have the not operator before it: 
unless (! $args =~ /\-rs(\s+)(\S+)/ && ! $args =~ /\-p(\s+)(\S+)/ && !
+ $args =~ /\-P(\s+)(\S+)/) {
   $args .= " --rs $str";
}

[download]
But it still does not work as expected. My last guess is due to regex grouping but not sure what to do. How to solve it?

In reply to regex return true instead of false by ovedpo15

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