1 /* PSPP - computes sample statistics.
2 Copyright (C) 1997-9, 2000, 2006 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful, but
10 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 #include <data/transformations.h>
26 #include <data/casefile-factory.h>
27 #include <libpspp/compiler.h>
37 /* Transformations. */
39 void add_transformation (struct dataset *ds,
40 trns_proc_func *, trns_free_func *, void *);
41 void add_transformation_with_finalizer (struct dataset *ds,
44 trns_free_func *, void *);
45 size_t next_transformation (const struct dataset *ds);
47 void discard_variables (struct dataset *ds);
51 bool proc_cancel_all_transformations (struct dataset *ds);
52 struct trns_chain *proc_capture_transformations (struct dataset *ds);
54 void proc_start_temporary_transformations (struct dataset *ds);
55 bool proc_in_temporary_transformations (const struct dataset *ds);
56 bool proc_make_temporary_transformations_permanent (struct dataset *ds);
57 bool proc_cancel_temporary_transformations (struct dataset *ds);
61 struct dataset * create_dataset (struct casefile_factory *);
62 void destroy_dataset (struct dataset *);
64 struct casefile_factory *dataset_get_casefile_factory (const struct dataset *);
66 void proc_set_source (struct dataset *ds, struct case_source *);
67 bool proc_has_source (const struct dataset *ds);
69 void proc_set_sink (struct dataset *ds, struct case_sink *);
70 struct casefile *proc_capture_output (struct dataset *ds);
72 typedef bool casefile_func (const struct casefile *, void *);
73 typedef bool case_func (const struct ccase *, void *, const struct dataset *);
74 typedef void begin_func (const struct ccase *, void *, const struct dataset*);
76 typedef bool end_func (void *, const struct dataset *);
78 typedef bool split_func (const struct ccase *, const struct casefile *,
79 void *, const struct dataset *);
83 bool procedure (struct dataset *ds, case_func *, void *aux) WARN_UNUSED_RESULT;
85 bool procedure_with_splits (struct dataset *ds,
91 bool multipass_procedure (struct dataset *ds, casefile_func *, void *aux)
93 bool multipass_procedure_with_splits (struct dataset *ds,
98 time_t time_of_last_procedure (struct dataset *ds);
100 void proc_open (struct dataset *);
101 bool proc_read (struct dataset *, struct ccase **);
102 bool proc_close (struct dataset *);
105 struct ccase *lagged_case (const struct dataset *ds, int n_before);
107 inline struct dictionary *dataset_dict (const struct dataset *ds);
108 inline void dataset_set_dict ( struct dataset *ds, struct dictionary *dict);
110 inline int dataset_n_lag (const struct dataset *ds);
111 inline void dataset_set_n_lag (struct dataset *ds, int n_lag);
114 #endif /* procedure.h */