+ return (rv);
+}
+
+static int parse_ifdef (BUFFER *tmp, BUFFER *s, unsigned long data, BUFFER *err)
+{
+ int i, j, res = 0;
+ BUFFER token;
+
+ memset (&token, 0, sizeof (token));
+ mutt_extract_token (tmp, s, 0);
+
+ /* is the item defined as a variable or a function? */
+ if (!(res = (mutt_option_index (tmp->data) != -1)))
+ for (i = 0; !res && i < MENU_MAX; i++)
+ {
+ struct binding_t *b = km_get_table (Menus[i].value);
+
+ if (!b)
+ continue;
+
+ for (j = 0; b[j].name; j++)
+ if (!ascii_strncasecmp (tmp->data, b[j].name, mutt_strlen (tmp->data))
+ && (mutt_strlen (b[j].name) == mutt_strlen (tmp->data)))
+ {
+ res = 1;
+ break;
+ }
+ }
+ /* check for feature_* */
+ if (!res) {
+ char* p = NULL;
+ i = 0;
+ j = mutt_strlen (tmp->data);
+ /* need at least input of 'feature_X' */
+ if (j >= 7) {
+ p = tmp->data + 7;
+ j -= 7;
+ while (Features[i].name) {
+ if (mutt_strlen (Features[i].name) == j &&
+ ascii_strncasecmp (Features[i].name, p, j)) {
+ res = 1;
+ break;
+ }
+ i++;
+ }
+ }
+ }
+
+ if (!MoreArgs (s))
+ {
+ if (data)
+ snprintf (err->data, err->dsize, _("ifdef: too few arguments"));
+ else
+ snprintf (err->data, err->dsize, _("ifndef: too few arguments"));
+ return (-1);
+ }
+ mutt_extract_token (tmp, s, M_TOKEN_SPACE);
+
+ if ((data && res) || (!data && !res))
+ {
+ if (mutt_parse_rc_line (tmp->data, &token, err) == -1)
+ {
+ mutt_error ("Error: %s", err->data);
+ FREE (&token.data);
+ return (-1);
+ }
+ FREE (&token.data);
+ }
+ return 0;