bertrandk/botr

module URI

    # FIX: For some reason, the Bits on the Run API doesn't support the encoding
    #      of spaces to "+". As such, (ASCII space) will encode to "%20".
    TBLENCWWWCOMP__ = TBLENCWWWCOMP_.dup
    TBLENCWWWCOMP__[' '] = '%20'
    TBLENCWWWCOMP__.freeze

    def self.encode_www_form_component(str, enc=nil)
        str = str.to_s.dup

        if str.encoding != Encoding::ASCII_8BIT
              if enc && enc != Encoding::ASCII_8BIT
                str.encode!(Encoding::UTF_8, invalid: :replace, undef: :replace)
                str.encode!(enc, fallback: ->(x){"&#{x.ord};"})
              end
              str.force_encoding(Encoding::ASCII_8BIT)
        end
        str.gsub!(/[^*\-.0-9A-Z_a-z]/, TBLENCWWWCOMP__)
        str.force_encoding(Encoding::US_ASCII)
      end

      def self.decode_www_form_component(str, enc=Encoding::UTF_8)
        raise ArgumentError, "invalid %-encoding (#{str})" unless /\A[^%]*(?:%\h\h[^%]*)*\z/ =~ str
        str.b.gsub(/\+|%\h\h/, TBLENCWWWCOMP__).force_encoding(enc)
      end

end