proper error reporting from libxml2

Change-Id: Ia173f7f4c88c90b6d54c9a47d6ae18b933502678

sax/source/fastparser/fastparser.cxx

@@ -532,46 +532,20 @@ Event& Entity::getEvent( CallbackType aType )
     return rEvent;
 }
 
-OUString lclGetErrorMessage( xmlParserCtxtPtr, const OUString& sSystemId, sal_Int32 nLine )
+OUString lclGetErrorMessage( xmlParserCtxtPtr ctxt, const OUString& sSystemId, sal_Int32 nLine )
 {
-    const sal_Char* pMessage = "";
-#if 0
-    pMessage = "Error";
-    switch( xmlE )
-    {
-        case XML_ERROR_NONE:                            pMessage = "No";                                    break;
-        case XML_ERROR_NO_MEMORY:                       pMessage = "no memory";                             break;
-        case XML_ERROR_SYNTAX:                          pMessage = "syntax";                                break;
-        case XML_ERROR_NO_ELEMENTS:                     pMessage = "no elements";                           break;
-        case XML_ERROR_INVALID_TOKEN:                   pMessage = "invalid token";                         break;
-        case XML_ERROR_UNCLOSED_TOKEN:                  pMessage = "unclosed token";                        break;
-        case XML_ERROR_PARTIAL_CHAR:                    pMessage = "partial char";                          break;
-        case XML_ERROR_TAG_MISMATCH:                    pMessage = "tag mismatch";                          break;
-        case XML_ERROR_DUPLICATE_ATTRIBUTE:             pMessage = "duplicate attribute";                   break;
-        case XML_ERROR_JUNK_AFTER_DOC_ELEMENT:          pMessage = "junk after doc element";                break;
-        case XML_ERROR_PARAM_ENTITY_REF:                pMessage = "parameter entity reference";            break;
-        case XML_ERROR_UNDEFINED_ENTITY:                pMessage = "undefined entity";                      break;
-        case XML_ERROR_RECURSIVE_ENTITY_REF:            pMessage = "recursive entity reference";            break;
-        case XML_ERROR_ASYNC_ENTITY:                    pMessage = "async entity";                          break;
-        case XML_ERROR_BAD_CHAR_REF:                    pMessage = "bad char reference";                    break;
-        case XML_ERROR_BINARY_ENTITY_REF:               pMessage = "binary entity reference";               break;
-        case XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF:   pMessage = "attribute external entity reference";   break;
-        case XML_ERROR_MISPLACED_XML_PI:                pMessage = "misplaced xml processing instruction";  break;
-        case XML_ERROR_UNKNOWN_ENCODING:                pMessage = "unknown encoding";                      break;
-        case XML_ERROR_INCORRECT_ENCODING:              pMessage = "incorrect encoding";                    break;
-        case XML_ERROR_UNCLOSED_CDATA_SECTION:          pMessage = "unclosed cdata section";                break;
-        case XML_ERROR_EXTERNAL_ENTITY_HANDLING:        pMessage = "external entity reference";             break;
-        case XML_ERROR_NOT_STANDALONE:                  pMessage = "not standalone";                        break;
-        default:;
-    }
-#endif
+    const sal_Char* pMessage;
+    xmlErrorPtr error = xmlCtxtGetLastError( ctxt );
+    if( error && error->message )
+        pMessage = error->message;
+    else
+        pMessage = "unknown error";
     OUStringBuffer aBuffer( '[' );
     aBuffer.append( sSystemId );
     aBuffer.append( " line " );
     aBuffer.append( nLine );
     aBuffer.append( "]: " );
     aBuffer.appendAscii( pMessage );
-    aBuffer.append( " error" );
     return aBuffer.makeStringAndClear();
 }