# File lib/rexml/validation/relaxng.rb, line 308
308:       def expected
309:         return [ @prior.expected, @events[0] ].flatten if @current == 0
310:         return [@events[@current]]
311:       end

     # File lib/rexml/validation/relaxng.rb, line 287
287:       def next( event )
288:         expand_ref_in( @events, @current ) if @events[@current].class == Ref
289:         if ( @events[@current].matches?(event) )
290:           @current += 1
291:           if @events[@current].nil?
292:             @current = 0
293:             return self
294:           elsif @events[@current].kind_of? State
295:             @current += 1
296:             @events[@current-1].previous = self
297:             return @events[@current-1]
298:           else
299:             return self
300:           end
301:         else
302:           @prior = @previous.pop
303:           return @prior.next( event ) if @current == 0
304:           return nil
305:         end
306:       end