#include "libpspp/misc.h"
#include "libpspp/pool.h"
#include "libpspp/str.h"
+#include "libpspp/stringi-set.h"
#include "gl/xalloc.h"
/* Parses a list of variable names according to the DATA LIST version
of the TO convention. */
bool
-parse_DATA_LIST_vars (struct lexer *lexer, char ***names, size_t *nnames, int pv_opts)
+parse_DATA_LIST_vars (struct lexer *lexer, char ***names,
+ size_t *nnames, int pv_opts)
{
int n1, n2;
int d1, d2;
size_t nvar, mvar;
char name1[VAR_NAME_LEN + 1], name2[VAR_NAME_LEN + 1];
char root1[VAR_NAME_LEN + 1], root2[VAR_NAME_LEN + 1];
+ struct stringi_set set;
int success = 0;
assert (names != NULL);
assert (nnames != NULL);
assert ((pv_opts & ~(PV_APPEND | PV_SINGLE
| PV_NO_SCRATCH | PV_NO_DUPLICATE)) == 0);
- /* FIXME: PV_NO_DUPLICATE is not implemented. */
+ stringi_set_init (&set);
if (pv_opts & PV_APPEND)
- nvar = mvar = *nnames;
+ {
+ nvar = mvar = *nnames;
+
+ if (pv_opts & PV_NO_DUPLICATE)
+ {
+ size_t i;
+
+ for (i = 0; i < nvar; i++)
+ stringi_set_insert (&set, (*names)[i]);
+ }
+ }
else
{
nvar = mvar = 0;
{
char name[VAR_NAME_LEN + 1];
sprintf (name, "%s%0*d", root1, d1, n);
+
+ if (pv_opts & PV_NO_DUPLICATE && !stringi_set_insert (&set, name))
+ {
+ msg (SE, _("Variable %s appears twice in variable list."),
+ name);
+ goto fail;
+ }
(*names)[nvar] = xstrdup (name);
nvar++;
}
fail:
*nnames = nvar;
+ stringi_set_destroy (&set);
if (!success)
{
int i;