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[hybi] name symtax, was: WebSocket sub protocol name.

Julian Reschke <julian.reschke@gmx.de> Fri, 18 December 2009 09:40 UTC

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Date: Fri, 18 Dec 2009 10:39:35 +0100
From: Julian Reschke <julian.reschke@gmx.de>
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To: Pieter Hintjens <ph@imatix.com>
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Cc: hybi@ietf.org
Subject: [hybi] name symtax, was: WebSocket sub protocol name.
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Pieter Hintjens wrote:
 > ...
> It does shock me to read a protocol designer say, "a space is a valid
> name"... because it makes me wonder how many other alien concepts I'll
> stumble on in the spec.
> ...

I just stumbled over 
<http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol-68#section-1.1>:

      field         = 1*name-char colon [ space ] *any-char cr lf
      colon         = %x003A ; U+003A COLON (:)
      space         = %x0020 ; U+0020 SPACE
      cr            = %x000D ; U+000D CARRIAGE RETURN (CR)
      lf            = %x000A ; U+000A LINE FEED (LF)
      name-char     = %x0000-0009 / %x000B-000C / %x000E-0039 / 
%x003B-10FFFF
                      ; a Unicode character other than U+000A LINE FEED 
(LF), U+000D CARRIAGE RETURN (CR), or U+003A COLON (:)
      any-char      = %x0000-0009 / %x000B-000C / %x000E-10FFFF
                      ; a Unicode character other than U+000A LINE FEED 
(LF) or U+000D CARRIAGE RETURN (CR)

Note that name-char allows U+00.

BR, Julian

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