# File temp/validation/relaxng.rb, line 326 def next( event ) expand_ref_in( @events, @current ) if @events[@current].class == Ref if ( @events[@current].matches?(event) ) @current += 1 @ord += 1 if @events[@current].nil? @current = 0 return self elsif @events[@current].kind_of? State @current += 1 @events[@current-1].previous = self return @events[@current-1] else return self end else return @previous.pop.next( event ) if @current == 0 and @ord > 0 return nil end end