Re: [libposix-development] Remarks about ctype support

[John H. <jh...@gm...>]

OK, I'm going to call it a night... will look at it further tomorrow...

Hope my contributions are of some value.

Cheers,
John

On Jun 29, 2009, at 11:50 PM, Henrique Almeida wrote:

> We can do that in steps. Just assume the "POSIX" locale for now.
>
> 2009/6/30  <jh...@gm...>:
>> Yes, I was looking at that. To properly implement ctype I think we  
>> need to
>> implement locale
>> On Mon, Jun 29, 2009 at 10:03 PM, Henrique  
>> Almeida<hd...@gm...> wrote:
>>>
>>>  I think we can't assume that the character set is ASCII compatible.
>>> We probably could restrict which character sets we'd allow, but
>>> there's at least one Unix vendor/user (IBM) that probably won't  
>>> accept
>>> that. A safer implementation is the trivial case 'A': case 'B': case
>>> 'C': etc. (the compiler must optimize those in ASCII systems). Refer
>>> to:
>>>
>>>  http://www.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap06.html
>>>
>>>  I think the only possible assumptions about the portable character
>>> set are that '0' to '9' are sequential and that '\0' == 0.
>>>
>>> --
>>>  Henrique Dante de Almeida
>>>  hd...@gm...
>>>
>>>
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>>
>>
>>
>> --
>> John Haitas
>> jh...@gm...
>>
>>
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>
>
>
> -- 
> Henrique Dante de Almeida
> hd...@gm...
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--
John Haitas
jh...@gm...