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, 6 insertions, 3 deletions

diff --git a/src/transformation_facade.cc b/src/transformation_facade.cc
index f415cd8..6d7b7a3 100644
--- a/src/transformation_facade.cc
+++ b/src/transformation_facade.cc
@@ -7,6 +7,8 @@
 
 #include <sstream>
 
+#include "support/error/error_capacitor.h"
+
 namespace InputXSLT {
 
 TransformationFacade::TransformationFacade(
@@ -14,10 +16,11 @@ TransformationFacade::TransformationFacade(
 	IncludeEntityResolver* resolver
 ):
 	transformation_{},
-	transformer_() {
+	transformer_(),
+	error_multiplexer_(&transformer_) {
 	this->transformer_.setEntityResolver(resolver);
 
-	ErrorCapacitor errorCapacitor(&this->transformer_);
+	ErrorCapacitor errorCapacitor(&this->error_multiplexer_);
 
 	this->transformer_.compileStylesheet(
 		xalan::XSLTInputSource(transformation.data()),
@@ -68,7 +71,7 @@ void TransformationFacade::generate(
 	xalan::XSLTResultTarget&& outputTarget,
 	StylesheetParameterGuard&
 ) {
-	ErrorCapacitor errorCapacitor(&this->transformer_);
+	ErrorCapacitor errorCapacitor(&this->error_multiplexer_);
 
 	std::stringstream      emptyStream("<dummy/>");
 	xalan::XSLTInputSource inputSource(emptyStream);