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

#
# Handle Unicode-to-Internal conversion
#

module YAML

    #
    # Escape the string, condensing common escapes
    #
    def YAML.escape( value, skip = "" )
        value.gsub( /\\/, "\\\\\\" ).
              gsub( /"/, "\\\"" ).
              gsub( /([\x00-\x1f])/ ) do |x|
                 skip[x] || ESCAPES[ x.unpack("C")[0] ]
             end
    end

    #
    # Unescape the condenses escapes
    #
    def YAML.unescape( value )
        value.gsub( /\\(?:([nevfbart\\])|0?x([0-9a-fA-F]{2})|u([0-9a-fA-F]{4}))/ ) { |x| 
            if $3
                ["#$3".hex ].pack('U*')
            elsif $2
                [$2].pack( "H2" ) 
            else
                UNESCAPES[$1] 
            end
        }
    end

end