anchor.diff:    interface adjustr
       module procedure adjRStr
     end interface adjustr
  +
  +  interface len_trim
  +    module procedure lenTrimStr
  +  end interface len_trim
   
     interface assignment(=)
       module procedure assignStrStr
  
positive.code:       retValue = adjustr(this%chr)
      end if
    end function adjRStr
  
    ! ================================================================ !
    !  String Manipulation
  
negative.code:     procedure, private, pass(this)  :: trimStr
      procedure, private, pass(this)  :: adjLStr
      procedure, private, pass(this)  :: adjRStr
      procedure, private, pass(this)  :: lenTrimStr
  
      procedure, private, pass(this)  :: stripStr
      procedure, private, pass(this)  :: upperStr
  