Method ParseXML

IO/XMLParser/vtkXMLParser.cxx:263–314

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
int vtkXMLParser::ParseXML()
{
  // Parsing of message
  if (this->InputString)
  {
    if (this->InputStringLength >= 0)
    {
      return this->ParseBuffer(this->InputString, this->InputStringLength);
    }
    else
    {
      return this->ParseBuffer(this->InputString);
    }
  }

  // Make sure we have input.
  if (!this->Stream)
  {
    vtkErrorMacro("Parse() called with no Stream set.");
    return 0;
  }

  // Default stream parser just reads a block at a time.
  istream& in = *(this->Stream);
  constexpr int bufferSize = 4096;
  char buffer[bufferSize];

  // Read in the stream and send its contents to the XML parser.  This
  // read loop is very sensitive on certain platforms with slightly
  // broken stream libraries (like HPUX).  Normally, it is incorrect
  // to not check the error condition on the fin.read() before using
  // the data, but the fin.gcount() will be zero if an error occurred.
  // Therefore, the loop should be safe everywhere.
  while (!this->ParseError && !this->ParsingComplete() && in)
  {
    in.read(buffer, bufferSize);
    if (in.gcount())
    {
      if (!this->ParseBuffer(buffer, in.gcount()))
      {
        return 0;
      }
    }
  }

  // Clear the fail and eof bits on the input stream so we can later
  // seek back to read data.
  this->Stream->clear(this->Stream->rdstate() & ~ios::eofbit);
  this->Stream->clear(this->Stream->rdstate() & ~ios::failbit);

  return 1;
}

//------------------------------------------------------------------------------
int vtkXMLParser::ParsingComplete()