[xml] Using wchar_t string with libxml2.

[Arthur_Yarwood scee net]

You'll have to excuse my newness to
libxml and unicode in general, but please bare with me. I've read through
the http://xmlsoft.org/encoding.html document and some of the unicode intros
on www.unicode.org, but I could do with some help actually coding this.


I have an mfc window app that uses wchar_t
strings (WCHAR and CStringW too), for holding my data. I'd like to write
this data out to an xml file. As I'm building up the xml tree, I get unstuck
as all the functions expect an xmlChar* parameters. When I try to cast
my wide strings into xmlChar strings, only the first letter is written
out. (I just call xmlSaveFile() to write out). 

In the past when I've worked with normal
char* strings, I just cast (BAD_CAST) them into xmlChar* strings. This
seemed to work ok.  

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?

If anyone has any good code examples
on building and writing out an xml file from a bunch of wchar strings,
that would be really handy. Thanks. 

Arthur Yarwood



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