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2014-06-06Implemented WarningCapacitor as a counterpart to ErrorCapacitorAdrian Kummerländer
* in difference to ErrorCapacitor this class doesn't throw an exception on "discharge" but returns the gathered warnings * adapted FunctionTransform and frontend error handling to include warnings * added static "try_create" method to TransformationFacade ** wraps construction error handling ** custom logic may be embedded using the std::function argument *** this was implemented to prevent unneccessary code duplication for handling both construction and generation errors * adapted FunctionTransform to return warning as "warning" nodes in the result tree ** added functional lambda expression factory method "handleErrors" *** returns a error handling lambda expression for a given ResultNodeFacade * implemented WarningGuard class in frontend executable ** guarantees warnings to be printed to std::cerr independent of any exceptions
2014-06-05Implemented ErrorMultiplexer as primary error handlerAdrian Kummerländer
* 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
2014-06-04Renamed "test" executable to "ixslt"Adrian Kummerländer
* improved "ixslt" frontend code structure ** extracted input, process and output logic into separate methods ** removed manual "--transformation" parameter check as it is defined as required