Description of the illustration sdf.eps
sdf ::= SDF ( [ field_name | CONSTANT filename ] [os_file_proc_clause] [READSIZE size] [CHARACTERSET name] [LENGTH [SEMANTICS] {BYTE | CHAR | CHARACTER}] [BYTEORDER { BIG | LITTLE } [ENDIAN]] [BYTEORDERMARK { CHECK | NOCHECK }] [delim_spec] )