-/* PSPP - computes sample statistics.
- Copyright (C) 1997-9, 2000, 2006, 2007 Free Software Foundation, Inc.
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 1997-9, 2000, 2006, 2007, 2009 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 2 of the
- License, or (at your option) any later version.
+ 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.
+ 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, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef PROCEDURE_H
#define PROCEDURE_H 1
typedef void replace_source_callback (struct casereader *);
typedef void replace_dictionary_callback (struct dictionary *);
+typedef void transformation_change_callback_func (bool non_empty, void *aux);
-struct dataset * create_dataset (replace_source_callback *,
- replace_dictionary_callback *);
+struct dataset * create_dataset (void);
void destroy_dataset (struct dataset *);
+void dataset_add_transform_change_callback (struct dataset *,
+ transformation_change_callback_func *, void *);
+
void proc_discard_active_file (struct dataset *);
void proc_set_active_file (struct dataset *,
struct casereader *, struct dictionary *);
bool proc_set_active_file_data (struct dataset *, struct casereader *);
bool proc_has_active_file (const struct dataset *ds);
+struct casereader *proc_extract_active_file_data (struct dataset *);
void proc_discard_output (struct dataset *ds);
bool dataset_end_of_command (struct dataset *);
\f
struct dictionary *dataset_dict (const struct dataset *ds);
+const struct casereader *dataset_source (const struct dataset *ds);
+
-struct ccase *lagged_case (const struct dataset *ds, int n_before);
+const struct ccase *lagged_case (const struct dataset *ds, int n_before);
void dataset_need_lag (struct dataset *ds, int n_before);
+void dataset_set_callback (struct dataset *ds, void (*cb) (void *), void *);
+
#endif /* procedure.h */