-void case_map_prepare_dict (const struct dictionary *);
-struct case_map *case_map_from_dict (const struct dictionary *);
+struct case_map_stage *case_map_stage_create (const struct dictionary *);
+void case_map_stage_destroy (struct case_map_stage *);
+struct case_map *case_map_stage_get_case_map (const struct case_map_stage *);