#include "context.hh"
#include "grob.hh"
-
/*
Drop symbol from the list alist..alist_end.
*/
while (alist != alist_end)
{
if (ly_is_equal (scm_caar (alist), symbol))
- {
- alist = scm_cdr (alist);
- break;
- }
+ {
+ alist = scm_cdr (alist);
+ break;
+ }
*tail = scm_cons (scm_car (alist), SCM_EOL);
tail = SCM_CDRLOC (*tail);
/*
PROP_PATH should be big-to-small ordering
*/
-SCM
+SCM
nested_property_alist (SCM alist, SCM prop_path, SCM value)
{
SCM new_value = SCM_BOOL_F;
Recursively purge alist of prop_path:
revert ((sym, val) : L, [sym]) = L
- revert ((sym, val) : L, sym : props) =
+ revert ((sym, val) : L, sym : props) =
(sym, revert (val, rest-props)) ++ L
revert ((sym, val) : L, p ++ rest-props) =
(sym, val) : revert (L, p ++ rest-props)
*/
-SCM
+SCM
nested_property_revert_alist (SCM alist, SCM prop_path)
{
- assert(scm_is_pair (prop_path));
-
+ assert (scm_is_pair (prop_path));
+
SCM wanted_sym = scm_car (prop_path);
SCM new_list = SCM_EOL;
SCM old_val = scm_cdar (s);
if (sub_sym == wanted_sym)
- {
- 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;
+ }
*tail = scm_acons (sub_sym, old_val, SCM_EOL);
tail = SCM_CDRLOC (*tail);
return alist;
}
-
void
set_nested_property (Grob *me, SCM big_to_small, SCM value)
{
SCM alist = me->get_property (scm_car (big_to_small));
alist = nested_property_alist (alist, scm_cdr (big_to_small), value);
-
+
me->set_property (scm_car (big_to_small), alist);
}
-