>>-SPACE(string--+------------------+--)-----------------------><
                 '-,-+---+-+------+-'      
                     '-n-' '-,pad-'        

returns the blank-delimited words in string with n pad characters between each word. If you specify n, it must be a positive whole number or zero. If it is 0, all blanks are removed. Leading and trailing blanks are always removed. The default for n is 1, and the default pad character is a blank.

SPACE('abc  def  ')          ->    'abc def'
SPACE('  abc def',3)         ->    'abc   def'
SPACE('abc  def  ',1)        ->    'abc def'
SPACE('abc  def  ',0)        ->    'abcdef'
SPACE('abc  def  ',2,'+')    ->    'abc++def'