Added new files resulting from directory restructuring.

[pspp-builds.git] / src / data / value-labels.h

diff --git a/src/data/value-labels.h b/src/data/value-labels.h
new file mode 100644 (file)
index 0000000..ad21a6d
--- /dev/null
+++ b/src/data/value-labels.h
@@ -0,0 +1,62 @@
+/* PSPP - computes sample statistics.
+   Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
+   Written by Ben Pfaff <blp@gnu.org>.
+
+   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 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. */
+
+#ifndef VAL_LABS_H
+#define VAL_LABS_H 1
+
+#include <stddef.h>
+#include "variable.h"
+
+struct val_labs;
+
+struct val_lab 
+  {
+    union value value;
+    const char *label;
+  };
+
+struct val_labs *val_labs_create (int width);
+struct val_labs *val_labs_copy (const struct val_labs *);
+void val_labs_set_width (struct val_labs *, int new_width);
+void val_labs_destroy (struct val_labs *);
+void val_labs_clear (struct val_labs *);
+size_t val_labs_count (const struct val_labs *);
+
+int val_labs_add (struct val_labs *, union value, const char *);
+int val_labs_replace (struct val_labs *, union value, const char *);
+int val_labs_remove (struct val_labs *, union value);
+char *val_labs_find (const struct val_labs *, union value);
+
+struct val_labs_iterator;
+
+struct val_lab *val_labs_first (const struct val_labs *,
+                                struct val_labs_iterator **);
+struct val_lab *val_labs_first_sorted (const struct val_labs *,
+                                       struct val_labs_iterator **);
+struct val_lab *val_labs_next (const struct val_labs *,
+                               struct val_labs_iterator **);
+void val_labs_done (struct val_labs_iterator **);
+
+/* Return a string representing this value, in the form most 
+   appropriate from a human factors perspective.
+   (IE: the label if it has one, otherwise the alpha/numeric )
+*/
+const char *value_to_string(const union value *, const struct variable *);
+
+#endif /* value-labels.h */