class REXML::Validation::ZeroOrMore

# File rexml-3.3.6/lib/rexml/validation/relaxng.rb, line 304
def expected
  return [ @prior.expected, @events[0] ].flatten if @current == 0
  return [@events[@current]]
end

# File rexml-3.3.6/lib/rexml/validation/relaxng.rb, line 283
def next( event )
  expand_ref_in( @events, @current ) if @events[@current].class == Ref
  if ( @events[@current].matches?(event) )
    @current += 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
    @prior = @previous.pop
    return @prior.next( event ) if @current == 0
    return nil
  end
end