]> git.donarmstrong.com Git - lilypond.git/blobdiff - lily/nested-property.cc
Release: update news.
[lilypond.git] / lily / nested-property.cc
index fb62c7d80ad08196313ad8c2a4d6509369037524..9c3cc73387a74dbd2533206b8148a03308871225 100644 (file)
@@ -1,7 +1,6 @@
 #include "context.hh"
 #include "grob.hh"
 
-
 /*
   Drop symbol from the list alist..alist_end.
  */
@@ -14,10 +13,10 @@ evict_from_alist (SCM symbol, SCM alist, SCM 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);
@@ -31,7 +30,7 @@ evict_from_alist (SCM symbol, SCM alist, SCM alist_end)
 /*
   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;
@@ -52,17 +51,17 @@ nested_property_alist (SCM alist, SCM prop_path, SCM value)
   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;
@@ -73,26 +72,26 @@ nested_property_revert_alist (SCM alist, SCM prop_path)
       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);
@@ -102,14 +101,12 @@ nested_property_revert_alist (SCM alist, SCM prop_path)
   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);
 }
-