| void xmlParserError (xmlParserCtxtPtr ctxt, const char *msg, ...); void xmlParserWarning (xmlParserCtxtPtr ctxt, const char *msg, ...); | 
| void xmlParserError (xmlParserCtxtPtr ctxt, const char *msg, ...); | 
Display and format an error messages, gives file, line, position and extra parameters.
| ctxt : | an XML parser context | 
| msg : | the message to display/transmit | 
| ... : | extra parameters for the message display | 
| void xmlParserWarning (xmlParserCtxtPtr ctxt, const char *msg, ...); | 
Display and format a warning messages, gives file, line, position and extra parameters.
| ctxt : | an XML parser context | 
| msg : | the message to display/transmit | 
| ... : | extra parameters for the message display |