initializeEncoding(XML_Parser parser)
{
  const char *s;
#ifdef XML_UNICODE
  char encodingBuf[128];
  if (!protocolEncodingName)
    s = NULL;
  else {
    int i;
    for (i = 0; protocolEncodingName[i]; i++) {
      if (i == sizeof(encodingBuf) - 1
          || (protocolEncodingName[i] & ~0x7f) != 0) {
        encodingBuf[0] = '\0';
        break;
      }
      encodingBuf[i] = (char)protocolEncodingName[i];
    }
    encodingBuf[i] = '\0';
    s = encodingBuf;
  }
#else
  s = protocolEncodingName;
#endif
  if ((ns ? XmlInitEncodingNS : XmlInitEncoding)(&initEncoding, &encoding, s))
    return XML_ERROR_NONE;
  return handleUnknownEncoding(parser, protocolEncodingName);
}
Unknown