Automatically infer variables' measurement level from format and data.

[pspp] / src / data / variable.h

diff --git a/src/data/variable.h b/src/data/variable.h
index d77a289afaefe897c0ef7ffcffffd4691c628a67..b5562ba827c5ca538b1bc3590b52f15113877fd1 100644 (file)
--- a/src/data/variable.h
+++ b/src/data/variable.h
@@ -1,5 +1,6 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 1997-9, 2000, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
+   Copyright (C) 1997-9, 2000, 2009, 2010, 2011, 2012, 2013,
+   2014, 2020 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
@@ -22,6 +23,7 @@
 #include "data/dict-class.h"
 #include "data/missing-values.h"
 #include "data/val-type.h"
+#include "data/settings.h"
 
 /* Bitfields to identify traits of a variable */
 
@@ -49,7 +51,8 @@ union value;
    instead. */
 struct variable *var_create (const char *name, int width);
 struct variable *var_clone (const struct variable *);
-void var_destroy (struct variable *);
+struct variable * var_ref (struct variable *) WARN_UNUSED_RESULT;
+void var_unref (struct variable *);
 
 /* Variable names. */
 const char *var_get_name (const struct variable *);
@@ -82,10 +85,9 @@ void var_set_missing_values (struct variable *, const struct missing_values *);
 void var_clear_missing_values (struct variable *);
 bool var_has_missing_values (const struct variable *);
 
-bool var_is_value_missing (const struct variable *, const union value *,
-                           enum mv_class);
-bool var_is_num_missing (const struct variable *, double, enum mv_class);
-bool var_is_str_missing (const struct variable *, const uint8_t[], enum mv_class);
+enum mv_class var_is_value_missing (const struct variable *, const union value *);
+enum mv_class var_is_num_missing (const struct variable *, double);
+enum mv_class var_is_str_missing (const struct variable *, const uint8_t[]);
 
 /* Value labels. */
 const char *var_lookup_value_label (const struct variable *,
@@ -93,10 +95,8 @@ const char *var_lookup_value_label (const struct variable *,
 struct string;
 void var_append_value_name (const struct variable *, const union value *,
                            struct string *);
-
-const char *
-var_get_value_name (const struct variable *v, const union value *value);
-
+void var_append_value_name__ (const struct variable *, const union value *,
+                              enum settings_value_show, struct string *);
 
 bool var_has_value_labels (const struct variable *);
 const struct val_labs *var_get_value_labels (const struct variable *);
@@ -120,16 +120,17 @@ struct fmt_spec var_default_formats (int width);
 /* Variable labels. */
 const char *var_to_string (const struct variable *);
 const char *var_get_label (const struct variable *);
-bool var_set_label (struct variable *, const char *label, bool issue_warning);
+void var_set_label (struct variable *, const char *label);
 void var_clear_label (struct variable *);
 bool var_has_label (const struct variable *);
 
 /* How data is measured. */
 enum measure
   {
-    MEASURE_NOMINAL = 0,
-    MEASURE_ORDINAL = 1,
-    MEASURE_SCALE = 2,
+    MEASURE_UNKNOWN = 0,
+    MEASURE_NOMINAL = 1,
+    MEASURE_ORDINAL = 2,
+    MEASURE_SCALE = 3,
     n_MEASURES
   };
 
@@ -140,7 +141,8 @@ const char *measure_to_syntax (enum measure);
 enum measure var_get_measure (const struct variable *);
 void var_set_measure (struct variable *, enum measure);
 
-enum measure var_default_measure (enum val_type);
+enum measure var_default_measure_for_type (enum val_type);
+enum measure var_default_measure_for_format (enum fmt_type);
 
 /* Intended usage of a variable, for populating dialogs. */
 enum var_role
@@ -190,7 +192,7 @@ void var_set_leave (struct variable *, bool leave);
 bool var_must_leave (const struct variable *);
 
 /* Short names. */
-size_t var_get_short_name_cnt (const struct variable *);
+size_t var_get_n_short_names (const struct variable *);
 const char *var_get_short_name (const struct variable *, size_t idx);
 void var_set_short_name (struct variable *, size_t, const char *);
 void var_clear_short_names (struct variable *);
@@ -210,4 +212,7 @@ const char *var_get_encoding (const struct variable *);
 /* Function types. */
 typedef bool var_predicate_func (const struct variable *);
 
+double var_force_valid_weight (const struct variable *wv, double w,
+                              bool *warn_on_invalid);
+
 #endif /* data/variable.h */