DELIM

 DELIM = del

 del  Is a scalar default character variable that is assigned
      one of the following values:

 'APOSTROPHE'  If apostrophes are used to delimit character 
               constants in list-directed and namelist output

 'QUOTE'       If quotation marks are used to delimit character 
               constants in list-directed and namelist output

 'NONE'        If no delimiters are used

 'UNDEFINED'   If the file is not connected, or is not connected 
               for formatted data transfer