class Rack::Multipart::Parser

def initialize(boundary, tempfile, bufsize, query_parser)
  @query_parser   = query_parser
  @params         = query_parser.make_params
  @bufsize        = bufsize
  @state = :FAST_FORWARD
  @mime_index = 0
  @collector = Collector.new tempfile
  @sbuf = StringScanner.new("".dup)
  @body_regex = /(?:#{EOL}|\A)--#{Regexp.quote(boundary)}(?:#{EOL}|--)/m
  @body_regex_at_end = /#{@body_regex}\z/m
  @end_boundary_size = boundary.bytesize + 4 # (-- at start, -- at finish)
  @rx_max_size = boundary.bytesize + 6 # (\r\n-- at start, either \r\n or -- at finish)
  @head_regex = /(.*?#{EOL})#{EOL}/m
end