NSan wrote:
Hi there,
I'm trying for a while to obtain the XML content of a file without spaces.
I have a XML file with the following content:
...
It happens that I need to obtain the name and type values from the XML but
I'm getting the content with white spaces. Here is the code I'm trying to
use:
The XML recommendation requires the parser report all of the content of the
document. If you have element-only content, then you can write a DTD that
indicates that, and use validation. In that case, that whitespace is
reported in the ignorableWhitespace callback, and not in the characters()
callback.
Code: ( text )
...
void MySAX2Handler::characters(const XMLCh* const chars, const
unsigned int length)
{
char* message = XMLString::transcode(chars);
std::cout << "Characters: " << message << " Lenght: " << length <<
std::endl;
if (XMLString::compareIString(chars,XMLUni::fgZeroLen String) !=
0) {
Those strings are not zero-length, so this is clearly going to fail. Also,
there is not guarantee the buffer pointed to by "chars" is null-terminated,
so it's dangerous to use a function that expects a null-terminated buffer.
You can use XMLChar::isAllSpaces() to determine if an event is all
whitespace, but be careful, because there is no guarantee in SAX that all
of the data for a particular text node will be delivered all at once. Most
SAX application buffer character data until the next callback function that
is not characters() gets called.
Dave
