Uniq - Perl extension for managing list of values.

	use Uniq;

	my @out = uniq sort @input;
	my @out = distinct sort @input;
	my @out = dups sort @input;

	Uniq exports three methods 'uniq', 'distinct' and 'dups'.
	All these methods accepts a list and returns a list.

	Similar functionality is available at shell prompts of *nix O/S.
	This modules is attempting to provide the same to Perl programming,

	The usage of the methods provided here is simple. You always provide
	a sorted list to any of these methods and accept a sorted list of
	values in return.

	Suppose @lis1 and @list2 are two available lists defined as
	follows:

	@list_1 = qw ( first list of values );
	@list_1 = qw ( second list of values );

	and we run the following commands:

	my @output_1 = uniq sort @list1 @list2;
	my @output_2 = distinct sort @list1 @list2;
	my @output_3 = dups sort @list1 @list2;




	Now @output_1 has qw( first list of second values )
	    @output_2 has qw( first second )
	and @output_3 has qw( list of values )

	Thus @output_1 has all values from either input lists sans any
	redundant values. @output_2 has exactly those values that appear
	at most once in combined list. On the other hand @output_3 has
	a list of values that appear multiple times in input.

   Exported are methods
   	1) uniq       [ similar to 'uniq' shell command ]
	2) distinct   [ similar to 'uniq -u' shell command ]
	3) dups       [ similar to 'uniq -d' shell command ]

  none.

   Syamala Tadigadapa

Copyright 2003 by Syamala Tadigadapa.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.