- {
- if (scm_is_pair (scm_cdr (prop_path)))
- {
- SCM new_val = nested_property_revert_alist (old_val, scm_cdr (prop_path));
-
- /* nothing changed: drop newly constructed list. */
- if (old_val == new_val)
- return alist;
-
- *tail = scm_acons (sub_sym, new_val, SCM_EOL);
- tail = SCM_CDRLOC(*tail);
- }
- else
- {
- /* old value is dropped. */
- }
-
- *tail = scm_cdr (s);
- return new_list;
- }
+ {
+ if (scm_is_pair (scm_cdr (prop_path)))
+ {
+ SCM new_val = nested_property_revert_alist (old_val, scm_cdr (prop_path));
+
+ /* nothing changed: drop newly constructed list. */
+ if (old_val == new_val)
+ return alist;
+
+ *tail = scm_acons (sub_sym, new_val, SCM_EOL);
+ tail = SCM_CDRLOC (*tail);
+ }
+ else
+ {
+ /* old value is dropped. */
+ }
+
+ *tail = scm_cdr (s);
+ return new_list;
+ }