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Re: REgular expression to check the string that allows "a","b" and "c" to occur only once in any order.

by narainhere (Monk)
on Dec 11, 2007 at 04:55 UTC ( [id://656313]=note: print w/replies, xml ) Need Help??

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  1. or download this
    use strict;
use warnings;
...
        print "Either the string \'$str\' contains a character not bel
+onging to the class [abc] or is more than 3 characters\n";
    }
}
  2. or download this
    use strict;
use warnings;
...
    }
    
}

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