source: extensions/gsdl-video/trunk/installed/cmdline/lib/ruby/1.8/yaml/stream.rb@ 18425

module YAML

    #
    # YAML::Stream -- for emitting many documents
    #
    class Stream

        attr_accessor :documents, :options

        def initialize( opts = {} )
            @options = opts
            @documents = []
        end
        
        def []( i )
            @documents[ i ]
        end

        def add( doc )
            @documents << doc
        end

        def edit( doc_num, doc )
            @documents[ doc_num ] = doc
        end

        def emit( io = nil )
            # opts = @options.dup
            # opts[:UseHeader] = true if @documents.length > 1
            out = YAML.emitter
            out.reset( io || io2 = StringIO.new )
            @documents.each { |v|
                v.to_yaml( out )
            }
            io || ( io2.rewind; io2.read )
        end

    end

end