 The  following  characters  are Metacharacters (characters which
 have special meaning  beyond  other  text  characters)  for  the
 Editor command language: 
  
    SEPAR - parameter separator character
    DELIM - command delimiter character (separates commands)
    NULL  - null-number character (gives a null value for a number)
  
 These characters can be altered by the "Alter" command. 
  
