#include <ctype.h>
#include "case.h"
-#include "cat-routines.h"
#include "category.h"
#include "settings.h"
#include "value-labels.h"
size_t var_cnt, var_cap; /* Number of variables, capacity. */
struct hsh_table *name_tab; /* Variable index by name. */
int next_value_idx; /* Index of next `union value' to allocate. */
- struct variable **split; /* SPLIT FILE vars. */
+ const struct variable **split; /* SPLIT FILE vars. */
size_t split_cnt; /* SPLIT FILE count. */
struct variable *weight; /* WEIGHT variable. */
struct variable *filter; /* FILTER variable. */
size_t case_limit; /* Current case limit (N command). */
char *label; /* File label. */
- char *documents; /* Documents, as a string. */
+ struct string documents; /* Documents, as a string. */
struct vector **vector; /* Vectors of variables. */
size_t vector_cnt; /* Number of vectors. */
const struct dict_callbacks *callbacks; /* Callbacks on dictionary
d->case_limit = 0;
free (d->label);
d->label = NULL;
- free (d->documents);
- d->documents = NULL;
+ ds_destroy (&d->documents);
dict_clear_vectors (d);
}
return d->var[idx];
}
+inline void
+dict_get_vars (const struct dictionary *d, const struct variable ***vars,
+ size_t *cnt, unsigned exclude_classes)
+{
+ dict_get_vars_mutable (d, (struct variable ***) vars, cnt, exclude_classes);
+}
+
/* Sets *VARS to an array of pointers to variables in D and *CNT
to the number of variables in *D. All variables are returned
if EXCLUDE_CLASSES is 0, or it may contain one or more of (1u
<< DC_ORDINARY), (1u << DC_SYSTEM), or (1u << DC_SCRATCH) to
exclude the corresponding type of variable. */
void
-dict_get_vars (const struct dictionary *d, struct variable ***vars,
+dict_get_vars_mutable (const struct dictionary *d, struct variable ***vars,
size_t *cnt, unsigned exclude_classes)
{
size_t count;
/* Deletes variable V from dictionary D and frees V.
This is a very bad idea if there might be any pointers to V
- from outside D. In general, no variable in should be deleted when
- any transformations are active on the dictionary's dataset, because
- those transformations might reference the deleted variable.
- The safest time to delete a variable is just after a procedure
- has been executed, as done by MODIFY VARS.
+ from outside D. In general, no variable in the active file's
+ dictionary should be deleted when any transformations are
+ active on the dictionary's dataset, because those
+ transformations might reference the deleted variable. The
+ safest time to delete a variable is just after a procedure has
+ been executed, as done by MODIFY VARS.
Pointers to V within D are not a problem, because
dict_delete_var() knows to remove V from split variables,
double w = case_num (c, d->weight);
if (w < 0.0 || var_is_num_missing (d->weight, w, MV_ANY))
w = 0.0;
- if ( w == 0.0 && *warn_on_invalid ) {
+ if ( w == 0.0 && warn_on_invalid != NULL && *warn_on_invalid ) {
*warn_on_invalid = false;
msg (SW, _("At least one case in the data file had a weight value "
"that was user-missing, system-missing, zero, or "
dict_get_split_cnt() to determine how many SPLIT FILE vars
there are. Returns a null pointer if and only if there are no
SPLIT FILE vars. */
-struct variable *const *
+const struct variable *const *
dict_get_split_vars (const struct dictionary *d)
{
assert (d != NULL);
assert (cnt == 0 || split != NULL);
d->split_cnt = cnt;
- d->split = xnrealloc (d->split, cnt, sizeof *d->split);
+ d->split = cnt > 0 ? xnrealloc (d->split, cnt, sizeof *d->split) : NULL;
memcpy (d->split, split, cnt * sizeof *d->split);
if ( d->callbacks && d->callbacks->split_changed )
}
/* Returns the documents for D, or a null pointer if D has no
- documents (see cmd_document()).. */
+ documents. If the return value is nonnull, then the string
+ will be an exact multiple of DOC_LINE_LENGTH bytes in length,
+ with each segment corresponding to one line. */
const char *
dict_get_documents (const struct dictionary *d)
{
- assert (d != NULL);
-
- return d->documents;
+ return ds_is_empty (&d->documents) ? NULL : ds_cstr (&d->documents);
}
/* Sets the documents for D to DOCUMENTS, or removes D's
- documents if DOCUMENT is a null pointer. */
+ documents if DOCUMENT is a null pointer. If DOCUMENTS is
+ nonnull, then it should be an exact multiple of
+ DOC_LINE_LENGTH bytes in length, with each segment
+ corresponding to one line. */
void
dict_set_documents (struct dictionary *d, const char *documents)
{
- assert (d != NULL);
+ size_t remainder;
+
+ ds_assign_cstr (&d->documents, documents != NULL ? documents : "");
- free (d->documents);
- if (documents == NULL)
- d->documents = NULL;
- else
- d->documents = xstrdup (documents);
+ /* In case the caller didn't get it quite right, pad out the
+ final line with spaces. */
+ remainder = ds_length (&d->documents) % DOC_LINE_LENGTH;
+ if (remainder != 0)
+ ds_put_char_multiple (&d->documents, ' ', DOC_LINE_LENGTH - remainder);
+}
+
+/* Drops the documents from dictionary D. */
+void
+dict_clear_documents (struct dictionary *d)
+{
+ ds_clear (&d->documents);
+}
+
+/* Appends LINE to the documents in D. LINE will be truncated or
+ padded on the right with spaces to make it exactly
+ DOC_LINE_LENGTH bytes long. */
+void
+dict_add_document_line (struct dictionary *d, const char *line)
+{
+ if (strlen (line) > DOC_LINE_LENGTH)
+ {
+ /* Note to translators: "bytes" is correct, not characters */
+ msg (SW, _("Truncating document line to %d bytes."), DOC_LINE_LENGTH);
+ }
+ buf_copy_str_rpad (ds_put_uninit (&d->documents, DOC_LINE_LENGTH),
+ DOC_LINE_LENGTH, line);
+}
+
+/* Returns the number of document lines in dictionary D. */
+size_t
+dict_get_document_line_cnt (const struct dictionary *d)
+{
+ return ds_length (&d->documents) / DOC_LINE_LENGTH;
+}
+
+/* Copies document line number IDX from dictionary D into
+ LINE, trimming off any trailing white space. */
+void
+dict_get_document_line (const struct dictionary *d,
+ size_t idx, struct string *line)
+{
+ assert (idx < dict_get_document_line_cnt (d));
+ ds_assign_substring (line, ds_substr (&d->documents, idx * DOC_LINE_LENGTH,
+ DOC_LINE_LENGTH));
+ ds_rtrim (line, ss_cstr (CC_SPACES));
}
/* Creates in D a vector named NAME that contains the CNT
return false;
}
+/* Creates in D a vector named NAME that contains the CNT
+ variables in VAR. A vector named NAME must not already exist
+ in D. */
+void
+dict_create_vector_assert (struct dictionary *d,
+ const char *name,
+ struct variable **var, size_t cnt)
+{
+ assert (dict_lookup_vector (d, name) == NULL);
+ dict_create_vector (d, name, var, cnt);
+}
+
/* Returns the vector in D with index IDX, which must be less
than dict_get_vector_cnt (D). */
const struct vector *
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