ALPHA /* A string variable. */
};
+bool var_type_is_valid (enum var_type);
const char *var_type_adj (enum var_type);
const char *var_type_noun (enum var_type);
+/* Alignment of data for display. */
+enum alignment
+ {
+ ALIGN_LEFT = 0,
+ ALIGN_RIGHT = 1,
+ ALIGN_CENTRE = 2,
+ n_ALIGN
+ };
+
+bool alignment_is_valid (enum alignment);
+
+/* How data is measured. */
+enum measure
+ {
+ MEASURE_NOMINAL = 1,
+ MEASURE_ORDINAL = 2,
+ MEASURE_SCALE = 3,
+ n_MEASURES
+ };
+
+bool measure_is_valid (enum measure);
+
/* Maximum lengths of short and long variable names.
Most operations support long variable names,
but some file formats are limited to short names. */
{
/* Dictionary information. */
char name[LONG_NAME_LEN + 1]; /* Variable name. Mixed case. */
- enum var_type type; /* NUMERIC or ALPHA. */
- int width; /* Size of string variables in chars. */
+ int width; /* 0 for numeric, otherwise string width. */
struct missing_values miss; /* Missing values. */
struct fmt_spec print; /* Default format for PRINT. */
struct fmt_spec write; /* Default format for WRITE. */
struct val_labs *val_labs; /* Value labels. */
char *label; /* Variable label. */
+
+ /* GUI information. */
enum measure measure; /* Nominal, ordinal, or continuous. */
int display_width; /* Width of data editor column. */
enum alignment alignment; /* Alignment of data in GUI. */
/* Case information. */
- int fv, nv; /* Index into `value's, number of values. */
+ int fv; /* Index into `value's. */
bool leave; /* Leave value from case to case? */
/* Data for use by containing dictionary. */
};
/* Variable names. */
+const char *var_get_name (const struct variable *);
+void var_set_name (struct variable *, const char *);
bool var_is_valid_name (const char *, bool issue_error);
bool var_is_plausible_name (const char *name, bool issue_error);
int compare_var_names (const void *, const void *, const void *);
unsigned hash_var_name (const void *, const void *);
+/* Variable types and widths. */
+enum var_type var_get_type (const struct variable *);
+int var_get_width (const struct variable *);
+void var_set_width (struct variable *, int width);
+bool var_is_numeric (const struct variable *);
+bool var_is_alpha (const struct variable *);
+bool var_is_short_string (const struct variable *);
+bool var_is_long_string (const struct variable *);
+bool var_is_very_long_string (const struct variable *);
+
+/* Variables' missing values. */
+const struct missing_values *var_get_missing_values (const struct variable *);
+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 *);
+
+typedef bool var_is_missing_func (const struct variable *,
+ const union value *);
+bool var_is_value_missing (const struct variable *, const union value *);
+bool var_is_num_missing (const struct variable *, double);
+bool var_is_str_missing (const struct variable *, const char[]);
+bool var_is_value_user_missing (const struct variable *,
+ const union value *);
+bool var_is_num_user_missing (const struct variable *, double);
+bool var_is_str_user_missing (const struct variable *, const char[]);
+bool var_is_value_system_missing (const struct variable *,
+ const union value *);
+
+/* Print and write formats. */
+const struct fmt_spec *var_get_print_format (const struct variable *);
+void var_set_print_format (struct variable *, const struct fmt_spec *);
+const struct fmt_spec *var_get_write_format (const struct variable *);
+void var_set_write_format (struct variable *, const struct fmt_spec *);
+void var_set_both_formats (struct variable *, const struct fmt_spec *);
+
+/* Variable labels. */
+const char *var_get_label (const struct variable *);
+void var_set_label (struct variable *, const char *);
+void var_clear_label (struct variable *);
+bool var_has_label (const struct variable *);
+
+/* GUI information. */
+enum measure var_get_measure (const struct variable *);
+void var_set_measure (struct variable *, enum measure);
+
+int var_get_display_width (const struct variable *);
+void var_set_display_width (struct variable *, int display_width);
+
+enum alignment var_get_alignment (const struct variable *);
+void var_set_alignment (struct variable *, enum alignment);
+
+/* Variable location in cases. */
+size_t var_get_value_cnt (const struct variable *);
+
+/* Whether variables' values should be preserved from case to
+ case. */
+bool var_get_leave (const struct variable *);
+
/* Short names. */
+const char *var_get_short_name (const struct variable *);
void var_set_short_name (struct variable *, const char *);
void var_set_short_name_suffix (struct variable *, const char *, int suffix);
void var_clear_short_name (struct variable *);