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Re: [HACKERS] UTF8 or Unicode

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "Markus Bertheau ?" <twanger(at)bluetwanger(dot)de>,Peter Eisentraut <peter_e(at)gmx(dot)net>, Tatsuo Ishii <t-ishii(at)sra(dot)co(dot)jp>,dpage(at)vale-housing(dot)co(dot)uk, oliver(at)opencloud(dot)com, zakkr(at)zf(dot)jcu(dot)cz,PostgreSQL-patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: [HACKERS] UTF8 or Unicode
Date: 2005-03-03 05:20:35
Message-ID: 200503030520.j235KZo01966@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackerspgsql-patches
Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> >> The correct encoding name is "UTF-8".
> 
> > True, but Peter says the ANSI standard calls it UTF8 so that's what I
> > used.
> 
> What SQL99 actually says is
> 
>          -  UTF8 specifies the name of a character repertoire that consists
>             of every character represented by The Unicode Standard Version
>             2.0 and by ISO/IEC 10646 UTF-8, where each character is encoded
>             using the UTF-8 encoding, occupying from 1 (one) through 6
>             octets.
> 
> That is, "UTF8" is an identifier chosen to refer to an encoding which
> they know perfectly well is really called UTF-8.  We should probably
> follow the same convention of using UTF8 in code identifiers and UTF-8
> in documentation.  In particular, UTF_8 with an underscore is sanctioned
> by nobody and should be avoided.

OK, new version with utf_8 changed to utf8.  The docs mention UTF-8 when
talking about the encoding, but UTF8 when listing the code to use.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073

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