Function            parsefnameext - parses a filename into name and
                                        extension

  Syntax              struct fnameext *parsefnameext(char *filename);

  Prototype in        filehk.h

  Remarks             parsefnameext parses a string pointed to by
                      filename into its elements, filename and extension.
                      The struct fnameext is returned with the file name
                      and extension as fixed length strings, padded with
                      spaces as necessary.

                      parsefnameext is useful for separating a DOS
                      filename into its discrete parts.

  Return value        parsefnameext returns the DOS file name filename
                      broken down into the structure fnameext as the name
                      and extension.

                      parsefnameext returns a pointer to the storage
                      location containing the struct fnameext, or NULL if
                      space could not be allocated.

  See also            getfilespec(), parsefilename(), resolvepath()

  Example             see demopars.c