> I've looked at MemParse and it gives you general information,
> but I want the actual node information and data. I have a
> parser that parses a file, but now I need to parse a buffer,
> i.e. a char*.
I use a stream& input source for C++, but it should generalize.
-- Scott
class StreamInputSource : public InputSource
{
public:
StreamInputSource(std::istream& is, const char* systemId=NULL) :
InputSource(systemId), m_is(is) {}
virtual BinInputStream* makeStream() const { return new
StreamBinInputStream(m_is); }
private:
std::istream& m_is;
class StreamBinInputStream : public BinInputStream
{
public:
StreamBinInputStream(std::istream& is) : m_is(is), m_pos(0)
{}
virtual unsigned int curPos() const { return m_pos; }
virtual unsigned int readBytes(XMLByte* const toFill, const
unsigned int maxToRead);
private:
std::istream& m_is;
unsigned int m_pos;
};
};
unsigned int StreamInputSource::StreamBinInputStream::readBytes(XMLByte*
const toFill, const unsigned int maxToRead)
{
XMLByte* target=toFill;
unsigned int bytes_read=0,request=maxToRead;
// Fulfill the rest by reading from the stream.
if (request)
{
try
{
m_is.read(reinterpret_cast<char* const>(target),request);
m_pos+=m_is.gcount();
bytes_read+=m_is.gcount();
}
catch(...)
{
cerr << "StreamInputSource::StreamBinInputStream::readBytes
caught an exception" << endl;
*toFill=0;
return 0;
}
}
return bytes_read;
}
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