    # File lib/standard/facets/fileutils/cp_rx.rb, line 32
      def copy_entryx(src, dest, filter, preserve = false, dereference_root = false, remove_destination = false)
              Entry_.new(src, nil, dereference_root).traverse do |ent|
                      if filter.call(ent.path) then
                              destent = Entry_.new(dest, ent.rel, false)
                              File.unlink destent.path if remove_destination && File.file?(destent.path)
                              ent.copy destent.path
                              ent.copy_metadata(destent.path) if preserve
                      end
              end
      end