new (TMail::Scanner_R)

    # File lib/action_mailer/vendor/tmail-1.1.0/tmail/scanner_r.rb, line 101
        def initialize( str, scantype, comments )
          init_scanner str
          @comments = comments || []
          @debug    = false

          # fix scanner mode
          @received  = (scantype == :RECEIVED)
          @is_mime_header = MIME_HEADERS[scantype]

          atom, token, @quoted_re, @domlit_re, @comment_re = PATTERN_TABLE[$KCODE]
          @word_re = (MIME_HEADERS[scantype] ? token : atom)
        end