added optional block following shape references which can contain transforms or materials specific to the shape instance

git-svn-id: svn://anubis/fart/trunk@312 7f9b0f55-74a9-4bce-be96-3c2cd072584d

parser/parser.yy

@@ -458,9 +458,24 @@ shape_definition: DEFINE SHAPE IDENTIFIER shape {
                 }
                 ;
 
-shape_ref: SHAPE IDENTIFIER { $$ = new ShapeRefNode($2->getString()); }
+shape_ref: SHAPE IDENTIFIER shape_ref_more {
+             $$ = new ShapeRefNode($2->getString());
+             $$->addChildren($3);
+         }
          ;
 
+shape_ref_more: /* empty */
+              | LCURLY shape_ref_items RCURLY { $$ = $2; }
+              ;
+
+shape_ref_items: /* empty */
+               | shape_item shape_ref_items {
+                    $$ = new ItemsNode();
+                    $$->addChild($1);
+                    $$->addChildren($2);
+               }
+               ;
+
 shape_item: material { $$ = $1; }
           | material_ref { $$ = $1; }
           | transform { $$ = $1; }