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Date: Thu, 14 Sep 2006 10:11:53 +0200
From: Manuel Collado <m.collado@fi.upm.es>
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Subject: Re: Avatox 1.0: Trouble with encoding in Windows
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Date: 2006-09-14T10:11:53+02:00
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Bj�rn Persson escribi�:
> Manuel Collado wrote:
>> Sorry, the use of [Wide_]Wide_Strings doesn't imply anything about 
>> encoding.
> 
> ARM95 3.5.2(3) says:
> "The predefined type Wide_Character is a character type whose values 
> correspond to the 65536 code positions of the ISO 10646 Basic 
> Multilingual Plane (BMP)."
> 
> This is essentially unchanged in the draft Ada 2005 standard. Paragraph 
> 3.5.2(3/2) says:
> "The predefined type Wide_Character is a character type whose values 
> correspond to the 65536 code positions of the ISO/IEC 10646:2003 Basic 
> Multilingual Plane (BMP)."
> 
> And the next paragraph, 3.1/2, adds:
> "The predefined type Wide_Wide_Character is a character type whose 
> values correspond to the 2147483648 code positions of the ISO/IEC 
> 10646:2003 character set."
> 
> This means that a Wide_String is UCS-2LE on a little-endian machine and 
> UCS-2BE on a big-endian machine, and a Wide_Wide_String is UCS-4LE or 
> UCS-4BE.

Thanks for the pointer. I've certainly missed that.

-- 
Manuel Collado