class REXML::Validation::State - rexml: Ruby Standard Library Documentation

# class REXML::Validation::State

### Public Class Methods

new( context ) click to toggle source

    # File rexml-3.4.0/lib/rexml/validation/relaxng.rb, line 128
    def initialize( context )
      @previous = []
      @events = []
      @current = 0
      @count = context.count += 1
      @references = context.references
      @value = false
    end

### Public Instance Methods

<<( event ) click to toggle source

    # File rexml-3.4.0/lib/rexml/validation/relaxng.rb, line 192
    def <<( event )
      add_event_to_arry( @events, event )
    end

expected() click to toggle source

    # File rexml-3.4.0/lib/rexml/validation/relaxng.rb, line 188
    def expected
      return [@events[@current]]
    end

inspect() click to toggle source

    # File rexml-3.4.0/lib/rexml/validation/relaxng.rb, line 181
    def inspect
      "< #{to_s} #{@events.collect{|e|
        pre = e == @events[@current] ? '#' : ''
        pre + e.inspect unless self == e
      }.join(', ')} >"
    end

next( event ) click to toggle source

    # File rexml-3.4.0/lib/rexml/validation/relaxng.rb, line 147
    def next( event )
      #print "In next with #{event.inspect}.  "
      #p @previous
      return @previous.pop.next( event ) if @events[@current].nil?
      expand_ref_in( @events, @current ) if @events[@current].class == Ref
      if ( @events[@current].kind_of? State )
        @current += 1
        @events[@current-1].previous = self
        return @events[@current-1].next( event )
      end
      if ( @events[@current].matches?(event) )
        @current += 1
        if @events[@current].nil?
          return @previous.pop
        elsif @events[@current].kind_of? State
          @current += 1
          @events[@current-1].previous = self
          return @events[@current-1]
        else
          return self
        end
      else
        return nil
      end
    end

previous=( previous ) click to toggle source

    # File rexml-3.4.0/lib/rexml/validation/relaxng.rb, line 143
    def previous=( previous )
      @previous << previous
    end

reset() click to toggle source

    # File rexml-3.4.0/lib/rexml/validation/relaxng.rb, line 137
    def reset
      return if @current == 0
      @current = 0
      @events.each {|s| s.reset if s.kind_of? State }
    end

to_s() click to toggle source

    # File rexml-3.4.0/lib/rexml/validation/relaxng.rb, line 173
    def to_s
      # Abbreviated:
      self.class.name =~ /(?:::)(\w)\w+$/
      # Full:
      #self.class.name =~ /(?:::)(\w+)$/
      "#$1.#@count"
    end

### Protected Instance Methods

add_event_to_arry( arry, evt ) click to toggle source

    # File rexml-3.4.0/lib/rexml/validation/relaxng.rb, line 206
    def add_event_to_arry( arry, evt )
      evt = generate_event( evt )
      if evt.kind_of? String
        arry[-1].event_arg = evt if arry[-1].kind_of? Event and @value
        @value = false
      else
        arry << evt
      end
    end

expand_ref_in( arry, ind ) click to toggle source

    # File rexml-3.4.0/lib/rexml/validation/relaxng.rb, line 198
    def expand_ref_in( arry, ind )
      new_events = []
      @references[ arry[ind].to_s ].each{ |evt|
        add_event_to_arry(new_events,evt)
      }
      arry[ind,1] = new_events
    end

generate_event( event ) click to toggle source

    # File rexml-3.4.0/lib/rexml/validation/relaxng.rb, line 216
    def generate_event( event )
      return event if event.kind_of? State or event.class == Ref
      evt = nil
      arg = nil
      case event[0]
      when :start_element
        case event[1]
        when "element"
          evt = :start_element
          arg = event[2]["name"]
        when "attribute"
          evt = :start_attribute
          arg = event[2]["name"]
        when "text"
          evt = :text
        when "value"
          evt = :text
          @value = true
        end
      when :text
        return event[1]
      when :end_document
        return Event.new( event[0] )
      else # then :end_element
        case event[1]
        when "element"
          evt = :end_element
        when "attribute"
          evt = :end_attribute
        end
      end
      return Event.new( evt, arg )
    end