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Re: [PATCH] [BZ 17588 13064] Update UTF-8 charmap and width to Unicode 7.0.0
- From: "Carlos O'Donell" <carlos at redhat dot com>
- To: Joseph Myers <joseph at codesourcery dot com>, Alexandre Oliva <aoliva at redhat dot com>
- Cc: Pravin Satpute <psatpute at redhat dot com>, Siddhesh Poyarekar <siddhesh at redhat dot com>, Mike FABIAN <mfabian at redhat dot com>, libc-alpha at sourceware dot org, Jens Petersen <petersen at redhat dot com>
- Date: Fri, 20 Feb 2015 15:51:29 -0500
- Subject: Re: [PATCH] [BZ 17588 13064] Update UTF-8 charmap and width to Unicode 7.0.0
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On 02/18/2015 08:19 PM, Joseph Myers wrote:
> There's also the matter of updating __STDC_ISO_10646__ in stdc-predef.h.
>
> Unicode 7.0 claims to correspond to ISO/IEC 10646:2012 plus amendments 1
> and 2 (and one extra character). Unfortunately I can find no sign of
> amendment 2 ever having been published; it looks rather like it was
> subsumed into ISO/IEC 10646:2014. Wikipedia claims that corresponds to
> Unicode 7.0 (which would imply 201409L as version), but I can't find any
> authoritative information, either on the Unicode website or after looking
> through lots of SC2 documents, to confirm if there are indeed no
> characters in 10646:2014 that aren't in Unicode 7.0.
>
The ISO never published ammendment 2 for ISO/IEC 10646:2012.
The answer from the Unicode Consortium was (with some copy editing):
~~~
Version 7.0 of the Unicode Standard is synchronized with ISO/IEC 10646:2012,
plus Amendments 1 and 2. Additionally, it includes the accelerated
publication of U+20BD RUBLE SIGN.
Unicode 8.0, due for publication in the summer of 2015, is in early draft
stage now, with a page here:
http://www.unicode.org/versions/Unicode8.0.0/#Summary
Is intended to synchronize with ISO 10646:2014, plus Amendment 1.
~~~
Therefore Unicode 7.0.0 is between 10646:2012 and 10646:2014.
The wikipedia page is wrong and I have corrected it.
Thus __STDC_ISO_10646__ should be 201304L (the date that ISO/EC 10646:2012
Amd.1 was published).
Thoughts?
Cheers,
Carlos.