Re: [xml] Using wchar_t string with libxml2.

[Arthur_Yarwood scee net]

xml-bounces gnome org wrote on 26/01/2005 10:18:34:

> On Wed, Jan 26, 2005 at 10:05:10AM +0000, Arthur_Yarwood scee net
wrote:
> > How should I be passing my wide strings into these functions?
I could just 
> > convert them to char strings, but I could loose data. Are the
any other 
> > issues I should be concerned about to ensure my xml is valid?
e.g.  what 
> > encoding standard should I use? UTF-16?
> 
>   You must convert your wide strings into UTF-8 strings before
passing them
> to the libxml2 API. I think 
>     http://xmlsoft.org/encoding.html#internal
> is clear about that. If not I take patches to make this clearer.
> 

Ok, does that mean there could possibly be a loss
of data, for characters that need two bytes? Or have I got the wrong end
of the stick when it comes to storing Unicode strings?

I've just tried using 'wcstombs()' to convert my wide
string to a multi-byte string, which I can then BAD_CAST to xmlChar. Is
this the correct way of doing this? I just tried passing a random arabic
string through wcstombs() and it fails, because it cannot a wide character.


I also tried using iconv (although I wasn't sure what
my input code should be utf-16?), this also failed, giving me EILSEQ, again
a character it cannot convert. 

How should I convert my random arabic string to utf-8?
Is it possible? 

Thanks, 

Arthur.


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