Re: New Version Notification for draft-kamp-httpbis-structure-00.txt (fwd)

"Poul-Henning Kamp" <phk@phk.freebsd.dk> Thu, 13 October 2016 06:32 UTC

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To: Kari Hurtta <hurtta-ietf@elmme-mailer.org>
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From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
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Subject: Re: New Version Notification for draft-kamp-httpbis-structure-00.txt (fwd)
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--------
In message <20161013033431.B21C413FF4@welho-filter2.welho.com>om>, Kari Hurtta wri
tes:

>How about

>|   UTF8-octets = *( UTF8-char )
>|   UTF8-2      = %xC2-DF UTF8-tail
>|   UTF8-3      = %xE0 %xA0-BF UTF8-tail / %xE1-EC 2( UTF8-tail ) /
>|                 %xED %x80-9F UTF8-tail / %xEE-EF 2( UTF8-tail )
>|   UTF8-4      = %xF0 %x90-BF 2( UTF8-tail ) / %xF1-F3 3( UTF8-tail ) /
>|                 %xF4 %x80-8F 2( UTF8-tail )
>|   UTF8-tail   = %x80-BF
>|
>|   NOTE -- The authoritative definition of UTF-8 is in [UNICODE].  This
>|   grammar is believed to describe the same thing Unicode describes, but
>|   does not claim to be authoritative.  Implementors are urged to rely
>|   on the authoritative source, rather than on this ABNF.

>Are you meaining following:
>
>h1_unicode_utf8 = h1_utf8_1 / UTF8-2 / UTF8-3 / UTF8-4
>h1_utf8_1 = ( "\" "\" ) /
>            ( "\" "u" 4*HEXDIG ) /
>            0x20-21 / 
>            0x23-5B / 
>            0x5D-7E /
>            0x80-F7
>UTF8-2 = <UTF8-2, defined in RFC 3629, Section 4>
>UTF8-3 = <UTF8-3, defined in RFC 3629, Section 4>
>UTF8-4 = <UTF8-4, defined in RFC 3629, Section 4>

Yes, that looks like the a way to do it.

BTW: The ID lives here, pull requests are welcome:

	https://github.com/bsdphk/id_common_structure


-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.