private void leftAdd ( GBSNode p , GBSNode r , Object new1 , NodeInsertPoint ip , InsertNodes point ) { if ( r == null ) /* There is no upper predecessor */ leftAddNoPredecessor ( p , new1 , ip , point ) ; else /* There is an upper predecessor */ leftAddWithPredecessor ( p , r , new1 , ip , point ) ; }
Add to predecssor or current .