The LE function returns a Boolean value that  specifies  if  the
  first  parameter  is less than or equal to the second parameter,
  according to the ASCII values of the strings' characters.

  Syntax:

     LE( str1,str2 )

  The  parameters  'str1'  and  'str2'  must  be  character-string
  expressions.   VSI  Pascal  does  not  pad  shorter strings with
  blanks.