view vendor/gems/coderay-1.0.0/lib/coderay/encoders/xml.rb @ 1082:997f6d7738f7 bug_531

In repo controller entry action, show the page for the file even if it's binary (so user still has access to history etc links). This makes it possible to use the entry action as the default when a file is clicked on

module CodeRay
module Encoders
  
  # = XML Encoder
  #
  # Uses REXML. Very slow.
  class XML < Encoder
    
    register_for :xml
    
    FILE_EXTENSION = 'xml'
    
    autoload :REXML, 'rexml/document'
    
    DEFAULT_OPTIONS = {
      :tab_width => 8,
      :pretty => -1,
      :transitive => false,
    }
    
  protected
    def setup options
      super
      
      @doc = REXML::Document.new
      @doc << REXML::XMLDecl.new
      @tab_width = options[:tab_width]
      @root = @node = @doc.add_element('coderay-tokens')
    end
    
    def finish options
      @doc.write @out, options[:pretty], options[:transitive], true
      
      super
    end
    
  public
    def text_token text, kind
      if kind == :space
        token = @node
      else
        token = @node.add_element kind.to_s
      end
      text.scan(/(\x20+)|(\t+)|(\n)|[^\x20\t\n]+/) do |space, tab, nl|
        case
        when space
          token << REXML::Text.new(space, true)
        when tab
          token << REXML::Text.new(tab, true)
        when nl
          token << REXML::Text.new(nl, true)
        else
          token << REXML::Text.new($&)
        end
      end
    end
    
    def begin_group kind
      @node = @node.add_element kind.to_s
    end
    
    def end_group kind
      if @node == @root
        raise 'no token to close!'
      end
      @node = @node.parent
    end
    
  end
  
end
end