FreeTDS Development Group

[ZIGLIO Frediano <Frediano.Ziglio AT vodafoneomnitel.it>]

> > This is true. But is not the same question...
> > I don't like de-unicoding data. Data may lost... as I 
> suggest in a previous
> > mail late conversion is better.
> > If I write (in mssql7+) a column name in chinese (well, I 
> don't still know
> > chinese..) there is no way to simply extract only this 
> field from table (for
> > example) in our current implementation...
> 
> I think UTF-8 is the way forward on this.  The basic problem 
> is what do 
> the unix apps support?  It sure isn't UCS-2.  If they support unicode 
> at all it's utf-8 and ucs-2 to utf-8 can be done losslessly.  
> And then 
> there are crippled clients that need single byte char sets, I 
> can't see 
> removing this for some years to come.
> 

The problem with utf8 is that conversion from ucs2 -> utf8 require at max 3
bytes per 2 bytes. So if I return a nchar(8000) we should allocate 12000
bytes to store this type. If we store just ucs2 coding we can allocate only
8000 bytes. Another solution should use variable buffer for nchar/nvarchar,
calculate required uft8 length and than convert...
Samba solution is to use always utf8 coding for internal strings...

...
> > > 
> > > I just need to know what I should do with the tds_convert_ntext()
> > > function....
> 
> tds_convert_ntext should in theory be exactly like tds_convert_text.
> 

unixODBC have function to support wide character (I suppose they use ucs2).
I know that gnome2 and kde3 support unicode much better than before. What
coding they use for unicode? utf8 (usually unix), ucs2 (windows) or
ucs4/utf4 (c wide char in linux) ?

...
> 
> Brian
> 
freddy77

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