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Re: Suggest Xmlize support for Value [message #15863 is a reply to message #15861]

Tue, 13 May 2008 03:19

Mindtraveller
Messages: 917
Registered: August 2007
Location: Russia, Moscow rgn.

Experienced Contributor

The problem above appeared to be more serious: some serialized strings with trailing zero bytes are automatically truncated while added to the xml. So I suggest my solution by simple uuencoding bytes:

String UUEncode(const String &s)
{
	String out;
	out.Reserve(s.GetCount()*2);
	for (int i=0;i<s.GetCount();++i)
		out+=Format("%02X",0xFF & s[i]);
	
	return out;
}

String UUDecode(const String &s)
{
	String out;
	out.Reserve(s.GetCount()/2);
	for (int i=0;i<s.GetCount()/2;++i)
		out += (char) (0xFF & ScanInt(s.Mid(i*2,2).Begin(), NULL, 16));
	
	return out;
}

//----------------------------------------------------------------------
NAMESPACE_UPP
template<> void Xmlize(XmlIO xml, Value& v)
{
	if (xml.IsLoading())
	{
		String s;
		xml.Attr("value", s);
		StringStream ss(UUDecode(s));
		ss.SetLoading();
		ss % v;
	}
	else
	{
		StringStream ss;
		ss.SetStoring();
		ss % v;
		String s(UUEncode((String) ss));
		xml.Attr("value",s);
	}
}
END_UPP_NAMESPACE

[Updated on: Tue, 13 May 2008 10:03]

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