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Re: 23.0.60; [nxml] BOM and utf-8
From: |
Stephen J. Turnbull |
Subject: |
Re: 23.0.60; [nxml] BOM and utf-8 |
Date: |
Sun, 18 May 2008 13:13:58 +0900 |
Miles Bader writes:
> "Stephen J. Turnbull" <address@hidden> writes:
> > > is the attached xml file (simple.xml) really invalid (as indicated by
> > > nxhtml) or is this a bug in nxhtml?
> >
> > Neither. Emacs is (arguably) reading it incorrectly.
>
> By "arguably" I presume you're referring to the "Microsoft does <random
> stupid thing>, therefore everybody who doesn't do <random stupid thing>
> is incorrect" tactic.
No, by "arguably" I'm referring to the fact that although the optional
UTF-8 signature has been part of ISO/IEC 10646-1 and Unicode for a
decade or so, not to mention Internet STD 63 (aka RFC 3269), I fully
expected somebody like you to pop up and argue about it.
It is a bad standard (see STD 63) and possibly Microsoft-induced, but
it *is* the standard and is showing no signs of going away; see
Section 16.8 of *The Unicode Standard*, v5.0. In fact, the trend is
the other way around: the ancient RFCs 2044 and 2279 don't mention it
either way, but STD 63 found it necessary to *add* it.
> In general, other apps that read such files are not expecting the
> BOM, and won't be able to deal with it. So Emacs wouldn't be doing
> the user any favors by hiding the BOM from him.
So pop up a warning to the effect that the BOM was stripped per the
Unicode standard, and that if it needs to be preserved, set
UNICODE_ME_SOFTLY in the environment or bind `unicode-me-softly'
around the codec.
Alternatively, sabotage the Microsoft users by silently eating the BOM
on the way in, and writing the file in GNU substandard[1] format on the
way out.
Footnotes:
[1] A substandard is a standard with stupid optional features
subtracted. :-)
- Re: 23.0.60; [nxml] BOM and utf-8, (continued)
- Re: 23.0.60; [nxml] BOM and utf-8, Miles Bader, 2008/05/17
- Re: 23.0.60; [nxml] BOM and utf-8, Eli Zaretskii, 2008/05/17
- Re: 23.0.60; [nxml] BOM and utf-8, Stephen J. Turnbull, 2008/05/18
- Re: 23.0.60; [nxml] BOM and utf-8, Jason Rumney, 2008/05/18
- Re: 23.0.60; [nxml] BOM and utf-8, Patrick Drechsler, 2008/05/18
- Re: 23.0.60; [nxml] BOM and utf-8, Stephen J. Turnbull, 2008/05/18
- Re: 23.0.60; [nxml] BOM and utf-8, Patrick Drechsler, 2008/05/19
- Re: 23.0.60; [nxml] BOM and utf-8, Eli Zaretskii, 2008/05/19
- Re: 23.0.60; [nxml] BOM and utf-8, Patrick Drechsler, 2008/05/20
- Re: 23.0.60; [nxml] BOM and utf-8, joakim, 2008/05/18
- Re: 23.0.60; [nxml] BOM and utf-8,
Stephen J. Turnbull <=
- Re: 23.0.60; [nxml] BOM and utf-8, Miles Bader, 2008/05/18
- Re: 23.0.60; [nxml] BOM and utf-8, David Kastrup, 2008/05/18
- Re: 23.0.60; [nxml] BOM and utf-8, Stephen J. Turnbull, 2008/05/18
- Re: 23.0.60; [nxml] BOM and utf-8, David Kastrup, 2008/05/19
- Re: 23.0.60; [nxml] BOM and utf-8, Stephen J. Turnbull, 2008/05/19
- Re: 23.0.60; [nxml] BOM and utf-8, David Kastrup, 2008/05/19
- Re: 23.0.60; [nxml] BOM and utf-8, Stephen J. Turnbull, 2008/05/19
- Re: 23.0.60; [nxml] BOM and utf-8, David Kastrup, 2008/05/20
- Re: 23.0.60; [nxml] BOM and utf-8, Kenichi Handa, 2008/05/29
- Re: 23.0.60; [nxml] BOM and utf-8, Miles Bader, 2008/05/29