# $EPIC: uniq.txt,v 1.2 2006/08/20 17:37:08 sthalik Exp $
======Synopsis:======
$__uniq__(<word list>)

======Technical:======
   * If the <word list> argument is omitted the empty string is returned.
   * In all circumstances, any extra whitespace between words in the word list is lost in the return value.
   * The implementation of this function is equivalent to:

  fe ($*) x {
    if (findw($x $function_return) == -1) {
      push function_return $x
    }
  }

   * This function uses a O(N^2) algorithm and can perform very slowly for large inputs.

======Practical:======
This function returns all of the words in <word list> after all of 
the duplicates are removed.

======Returns:======
list of the unique words in <word list>

======Examples:======
<file>
$uniq(one two three two one)       returns "one two three"
$uniq(one    two three  two one)   returns "one two three"
$uniq(blah blah blah)              returns "blah"
</file>

======History:======
This function first appeared in EPIC3.001.