"Brendan Reville" <[EMAIL PROTECTED]> writes:
> I have a .xml file encoded as utf-8, and I want to load some
> attribute values as utf-8 strings inside my own code.
>
> given that AttributeList::getName()) returns an XMLCh*, which I take
> to be Unicode characters, how can I then convert this back into a
> utf-8 string?
Here's a bit of C-ish typemap code that does it. Note that $source is
the XMLCh* input string, and UTF8_TRANSCODER is a global variable set
to a pre-allocated transcoder for UTF-8.
unsigned int charsEaten = 0;
int length = XMLString::stringLen($source); // string length
XMLByte* res = new XMLByte[length * UTF8_MAXLEN]; // output string
unsigned int total_chars =
UTF8_TRANSCODER->transcodeTo((const XMLCh*) $source,
(unsigned int) length,
(XMLByte*) res,
(unsigned int) length*UTF8_MAXLEN,
charsEaten,
XMLTranscoder::UnRep_Throw
);
res[total_chars] = '\0';
Here's the code that allocates the transcoder:
static XMLCh* UTF8_ENCODING = NULL;
static XMLTranscoder* UTF8_TRANSCODER = NULL;
XMLTransService::Codes failReason;
XMLPlatformUtils::Initialize(); // first we must create the transservice
UTF8_ENCODING = XMLString::transcode("UTF-8");
UTF8_TRANSCODER =
XMLPlatformUtils::fgTransService->makeNewTranscoderFor(UTF8_ENCODING,
failReason,
1024);
if (! UTF8_TRANSCODER) {
croak("ERROR: XML::Xerces: INIT: Could not create UTF-8 transcoder");
}
HTH,
jas.
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