Re: Form feed in Net-UTF8? (Was: FWD: Re: Comments on Unicode Format for Network Interchange

Stephane Bortzmeyer <bortzmeyer@nic.fr> Mon, 08 October 2007 09:28 UTC

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Date: Mon, 8 Oct 2007 11:28:31 +0200
From: Stephane Bortzmeyer <bortzmeyer@nic.fr>
To: John C Klensin <john-ietf@jck.com>
Subject: Re: Form feed in Net-UTF8? (Was: FWD: Re: Comments on Unicode Format for Network Interchange
Message-ID: <20071008092831.GA31185@nic.fr>
References: <398A6C120C8B166FCBD3BDAF@p3.JCK.COM> <20071005151227.GA31232@nic.fr>
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On Fri, Oct 05, 2007 at 05:12:27PM +0200,
 Stephane Bortzmeyer <bortzmeyer@nic.fr> wrote 
 a message of 18 lines which said:

> I notice that draft-klensin-net-utf8-04 still disallows (actually,
> it is a SHOULD NOT in section 2.1) form feeds and I'm not sure of
> the rationale. Why end-of-lines and not end-of-pages?

The new text in -05 is fine for me:

       Other than CR, LF, Space (SP, U+0020), and, with caution, FF
       (U+000C), control characters (U+0000 to U+001F and U+007F to
       U+009F) SHOULD generally be avoided.  FF should be used only with
       caution: if its use assumes a page length, such assumptions may
       not be appropriate in international contexts (e.g., considering
       8.5x11 inch paper versus A4).  Other control characters are used
       to affect display format, control devices, or to structure files.
       None of those uses is appropriate for streams of plain text.  In
       particular, the so-called "C1 Controls" (U+0080 through U+009F)
       MUST NOT appear.