module Mail::RFC2045

def _nt_iana_token
  start_index = index
  if node_cache[:iana_token].has_key?(index)
    cached = node_cache[:iana_token][index]
    @index = cached.interval.end if cached
    return cached
  end
  s0, i0 = [], index
  loop do
    r1 = _nt_token
    if r1
      s0 << r1
    else
      break
    end
  end
  if s0.empty?
    @index = i0
    r0 = nil
  else
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
  end
  node_cache[:iana_token][start_index] = r0
  r0
end

def _nt_ietf_token
  start_index = index
  if node_cache[:ietf_token].has_key?(index)
    cached = node_cache[:ietf_token][index]
    @index = cached.interval.end if cached
    return cached
  end
  s0, i0 = [], index
  loop do
    r1 = _nt_token
    if r1
      s0 << r1
    else
      break
    end
  end
  if s0.empty?
    @index = i0
    r0 = nil
  else
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
  end
  node_cache[:ietf_token][start_index] = r0
  r0
end

def _nt_token
  start_index = index
  if node_cache[:token].has_key?(index)
    cached = node_cache[:token][index]
    @index = cached.interval.end if cached
    return cached
  end
  i0 = index
  if has_terminal?('\G[\\x21-\\x27]', true, index)
    r1 = true
    @index += 1
  else
    r1 = nil
  end
  if r1
    r0 = r1
  else
    if has_terminal?('\G[\\x2a-\\x2b]', true, index)
      r2 = true
      @index += 1
    else
      r2 = nil
    end
    if r2
      r0 = r2
    else
      if has_terminal?('\G[\\x2c-\\x2e]', true, index)
        r3 = true
        @index += 1
      else
        r3 = nil
      end
      if r3
        r0 = r3
      else
        if has_terminal?('\G[\\x30-\\x39]', true, index)
          r4 = true
          @index += 1
        else
          r4 = nil
        end
        if r4
          r0 = r4
        else
          if has_terminal?('\G[\\x41-\\x5a]', true, index)
            r5 = true
            @index += 1
          else
            r5 = nil
          end
          if r5
            r0 = r5
          else
            if has_terminal?('\G[\\x5e-\\x7e]', true, index)
              r6 = true
              @index += 1
            else
              r6 = nil
            end
            if r6
              r0 = r6
            else
              @index = i0
              r0 = nil
            end
          end
        end
      end
    end
  end
  node_cache[:token][start_index] = r0
  r0
end

def _nt_tspecials
  start_index = index
  if node_cache[:tspecials].has_key?(index)
    cached = node_cache[:tspecials][index]
    @index = cached.interval.end if cached
    return cached
  end
  i0 = index
  if has_terminal?("(", false, index)
    r1 = instantiate_node(SyntaxNode,input, index...(index + 1))
    @index += 1
  else
    terminal_parse_failure("(")
    r1 = nil
  end
  if r1
    r0 = r1
  else
    if has_terminal?(")", false, index)
      r2 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      terminal_parse_failure(")")
      r2 = nil
    end
    if r2
      r0 = r2
    else
      if has_terminal?("<", false, index)
        r3 = instantiate_node(SyntaxNode,input, index...(index + 1))
        @index += 1
      else
        terminal_parse_failure("<")
        r3 = nil
      end
      if r3
        r0 = r3
      else
        if has_terminal?(">", false, index)
          r4 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure(">")
          r4 = nil
        end
        if r4
          r0 = r4
        else
          if has_terminal?("@", false, index)
            r5 = instantiate_node(SyntaxNode,input, index...(index + 1))
            @index += 1
          else
            terminal_parse_failure("@")
            r5 = nil
          end
          if r5
            r0 = r5
          else
            if has_terminal?(",", false, index)
              r6 = instantiate_node(SyntaxNode,input, index...(index + 1))
              @index += 1
            else
              terminal_parse_failure(",")
              r6 = nil
            end
            if r6
              r0 = r6
            else
              if has_terminal?(";", false, index)
                r7 = instantiate_node(SyntaxNode,input, index...(index + 1))
                @index += 1
              else
                terminal_parse_failure(";")
                r7 = nil
              end
              if r7
                r0 = r7
              else
                if has_terminal?(":", false, index)
                  r8 = instantiate_node(SyntaxNode,input, index...(index + 1))
                  @index += 1
                else
                  terminal_parse_failure(":")
                  r8 = nil
                end
                if r8
                  r0 = r8
                else
                  if has_terminal?('\\', false, index)
                    r9 = instantiate_node(SyntaxNode,input, index...(index + 1))
                    @index += 1
                  else
                    terminal_parse_failure('\\')
                    r9 = nil
                  end
                  if r9
                    r0 = r9
                  else
                    if has_terminal?("<", false, index)
                      r10 = instantiate_node(SyntaxNode,input, index...(index + 1))
                      @index += 1
                    else
                      terminal_parse_failure("<")
                      r10 = nil
                    end
                    if r10
                      r0 = r10
                    else
                      if has_terminal?(">", false, index)
                        r11 = instantiate_node(SyntaxNode,input, index...(index + 1))
                        @index += 1
                      else
                        terminal_parse_failure(">")
                        r11 = nil
                      end
                      if r11
                        r0 = r11
                      else
                        if has_terminal?("/", false, index)
                          r12 = instantiate_node(SyntaxNode,input, index...(index + 1))
                          @index += 1
                        else
                          terminal_parse_failure("/")
                          r12 = nil
                        end
                        if r12
                          r0 = r12
                        else
                          if has_terminal?("[", false, index)
                            r13 = instantiate_node(SyntaxNode,input, index...(index + 1))
                            @index += 1
                          else
                            terminal_parse_failure("[")
                            r13 = nil
                          end
                          if r13
                            r0 = r13
                          else
                            if has_terminal?("]", false, index)
                              r14 = instantiate_node(SyntaxNode,input, index...(index + 1))
                              @index += 1
                            else
                              terminal_parse_failure("]")
                              r14 = nil
                            end
                            if r14
                              r0 = r14
                            else
                              if has_terminal?("?", false, index)
                                r15 = instantiate_node(SyntaxNode,input, index...(index + 1))
                                @index += 1
                              else
                                terminal_parse_failure("?")
                                r15 = nil
                              end
                              if r15
                                r0 = r15
                              else
                                if has_terminal?("=", false, index)
                                  r16 = instantiate_node(SyntaxNode,input, index...(index + 1))
                                  @index += 1
                                else
                                  terminal_parse_failure("=")
                                  r16 = nil
                                end
                                if r16
                                  r0 = r16
                                else
                                  @index = i0
                                  r0 = nil
                                end
                              end
                            end
                          end
                        end
                      end
                    end
                  end
                end
              end
            end
          end
        end
      end
    end
  end
  node_cache[:tspecials][start_index] = r0
  r0
end

def _nt_x_token
  start_index = index
  if node_cache[:x_token].has_key?(index)
    cached = node_cache[:x_token][index]
    @index = cached.interval.end if cached
    return cached
  end
  i0, s0 = index, []
  if has_terminal?('\G[xX]', true, index)
    r1 = true
    @index += 1
  else
    r1 = nil
  end
  s0 << r1
  if r1
    if has_terminal?("-", false, index)
      r2 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      terminal_parse_failure("-")
      r2 = nil
    end
    s0 << r2
    if r2
      s3, i3 = [], index
      loop do
        r4 = _nt_token
        if r4
          s3 << r4
        else
          break
        end
      end
      if s3.empty?
        @index = i3
        r3 = nil
      else
        r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      end
      s0 << r3
    end
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(XToken0)
  else
    @index = i0
    r0 = nil
  end
  node_cache[:x_token][start_index] = r0
  r0
end

def root
  @root ||= :tspecials
end