Function            shorttoddate - convert a short date to struct

  Syntax              struct ddate *shorttoddate(char *source);

  Prototype in        datehk.h

  Remarks             shorttoddate converts a date from a short date
                      format to the structure ddate format

  Return value        returns a pointer to the storage location
                      containing the date structure, or NULL if space
                      could not be allocated.

  See also            see Appendix A
                      Cal...(), date_convert(), ddatetofull(),
                      ddatetoshort(), ddatetostr(), fulltoddate(),
                      Greg...(), Jul...(), monthexpand(), strtoddate()

  Example             see demodate.c