VMS Help RMS, $PARSE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    The Parse service analyzes the file specification string and
    fills in various NAM or NAML block fields.

    Format

      SYS$PARSE  fab [,[err] [,suc]]

  Additional Information (explode) :

• Returns
• Arguments
• Condition Values Returned