DELIM Specifier

The DELIM specifier asks how character constants are delimited in list-directed and namelist output. It takes the following form:

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