--- /dev/null
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 2007 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* Case map.
+
+ A case map copies data from a case that corresponds to one
+ dictionary to a case that corresponds to a second dictionary.
+ A few options are available for ways to create the mapping. */
+
+#ifndef DATA_CASE_MAP_H
+#define DATA_CASE_MAP_H 1
+
+#include <stddef.h>
+
+struct case_map;
+struct dictionary;
+struct ccase;
+
+struct case_map *case_map_create (void);
+void case_map_destroy (struct case_map *);
+void case_map_execute (const struct case_map *,
+ const struct ccase *, struct ccase *);
+
+size_t case_map_get_value_cnt (const struct case_map *);
+
+/* For mapping cases for one version of a dictionary to those in
+ a modified version of the same dictionary. */
+void case_map_prepare_dict (const struct dictionary *);
+struct case_map *case_map_from_dict (const struct dictionary *);
+
+/* For eliminating "holes" in a case. */
+struct case_map *case_map_to_compact_dict (const struct dictionary *d,
+ unsigned int exclude_classes);
+
+/* For mapping cases for one dictionary to another based on
+ variable names within the dictionary. */
+struct case_map *case_map_by_name (const struct dictionary *old,
+ const struct dictionary *new);
+
+void case_map_dump (const struct case_map *);
+
+#endif /* data/case-map.h */