How the end of a text line is  represented  depends  on  the
          context  and  the implementation.  For Internet transmission
          via protocols such as SMTP [rrr], an  end-of-line  is  a  CR
          (ASCII  13)  followed  by an LF (ASCII 10).  ISO C [rrr] and
          many modern operating systems indicate  end-of-line  with  a
          single  character,  typically  ASCII LF (aka "newline"), and
          this is the normal convention when news is  transmitted  via
          UUCP.  A variety of other methods are in use, including out-
          of-band methods in which there is no specific character that
          means end-of-line.

          This Draft does not constrain how end-of-line is represented
          in news, except that characters other than CR  and  LF  MUST
          not  be  usurped  for  use  in  end-of-line representations.
          Also, obviously, all software dealing with a particular copy
          of  an  article  must  agree  on  the convention to be used.
          "EOL" is used to mean "whatever  end-of-line  representation
          is  appropriate";  it  is  not  necessarily  a  character or
          sequence of characters.


               NOTE: If faced with picking an EOL  representation
               in the absence of other constraints, use of a sin-
               gle character simplifies processing, and the ASCII
               standard  [rrr] specifies that if one character is
               to be used for  this  purpose,  it  should  be  LF
               (ASCII 10).

               NOTE:  Inside  MIME encodings, use of the Internet
               canonical EOL representation (CR followed  by  LF)
               is mandatory.  See [rrr].