Reference count struct dictionary.

[pspp] / src / data / sys-file-reader.c

diff --git a/src/data/sys-file-reader.c b/src/data/sys-file-reader.c
index b2db755732311d6c6ba8dda47044225edffa80c2..20ecf048f907e2fbc6bf9a317fb8884c00ba4d53 100644 (file)
--- a/src/data/sys-file-reader.c
+++ b/src/data/sys-file-reader.c
@@ -891,7 +891,7 @@ sfm_decode (struct any_reader *r_, const char *encoding,
 
 error:
   sfm_close (r_);
-  dict_destroy (dict);
+  dict_unref (dict);
   *dictp = NULL;
   return NULL;
 }
@@ -1762,7 +1762,12 @@ parse_mrsets (struct sfm_reader *r, const struct sfm_extension_record *record,
             }
 
           number = text_get_token (text, ss_cstr (" "), NULL);
-          if (!strcmp (number, "11"))
+          if (!number)
+            sys_warn (r, record->pos,
+                      _("Missing label source value "
+                        "following `E' at offset %zu in MRSETS record."),
+                      text_pos (text));
+          else if (!strcmp (number, "11"))
             mrset->label_from_var_label = true;
           else if (strcmp (number, "1"))
             sys_warn (r, record->pos,
@@ -2334,7 +2339,7 @@ parse_attributes (struct sfm_reader *r, struct text_record *text,
           if (text_match (text, ')'))
             break;
         }
-      if (attrs != NULL)
+      if (attrs != NULL && attribute_get_n_values (attr) > 0)
         {
           if (!attrset_try_add (attrs, attr))
             {
@@ -2388,7 +2393,7 @@ assign_variable_roles (struct sfm_reader *r, struct dictionary *dict)
       struct variable *var = dict_get_var (dict, i);
       struct attrset *attrs = var_get_attributes (var);
       const struct attribute *attr = attrset_lookup (attrs, "$@Role");
-      if (attr != NULL)
+      if (attr != NULL && attribute_get_n_values (attr) > 0)
         {
           int value = atoi (attribute_get_value (attr, 0));
           enum var_role role;