Implemented ErrorMultiplexer as primary error handler

* ErrorMultiplexer is derived from both xercesc::ErrorHandler and xalan::ProblemListener
* registers itself as XalanTransformer's ErrorHandler and ProblemListener
* distributes captured errors and warnings to all registered ErrorMultiplexer::Receiver instances
** ErrorCapacitor implements the ErrorMultiplexer::Receiver interface and as such registers itself in a given ErrorMultiplexer instance
** ErrorMultiplexer reduces the different xalan and xercesc internal error classifications into either warnings or errors
* this was implemented to make it possible to easily differentiate between warnings and errors
** previously warnings were treated as errors
** ErrorCapacitor ignores warnings and only captures errors
** WarningCapacitor will be implemented to handle warnings during XSLT processing

1 files changed, 1 insertions, 0 deletions

diff --git a/src/function/transform.cc b/src/function/transform.cc
index ab8c51c..86bc91c 100644
--- a/src/function/transform.cc
+++ b/src/function/transform.cc
@@ -7,6 +7,7 @@
 #include "transformation_facade.h"
 #include "support/xerces_string_guard.h"
 #include "support/dom/result_node_facade.h"
+#include "support/error/error_capacitor.h"
 
 namespace InputXSLT {