-void compact_case (struct ccase *dest, const struct ccase *src);
-void write_active_file_to_disk (void);
-
-void process_active_file (void (*begin_func) (void *),
- int (*casefunc) (struct ccase *, void *),
- void (*end_func) (void *),
- void *aux);
-void process_active_file_output_case (const struct ccase *);