Expanded ErrorCapacitor error message generation

* added entity, line and column information
* formatting analog to ErrorCapacitor warning messages
** i.e. this commit implements functionality similar to "xalanc::ProblemListenerBase::defaultFormat" for "xercesc::ErrorHandler" exceptions

1 files changed, 11 insertions, 2 deletions

diff --git a/src/support/error_capacitor.cc b/src/support/error_capacitor.cc
index 1a536ed..e624cd1 100644
--- a/src/support/error_capacitor.cc
+++ b/src/support/error_capacitor.cc
@@ -11,9 +11,18 @@
 
 namespace {
 
+using InputXSLT::XercesStringGuard;
+
 inline std::string getMessage(const xercesc::SAXParseException& exception) {
-	return std::string(
-		*InputXSLT::XercesStringGuard<char>(exception.getMessage())
+	return (
+		std::string(*XercesStringGuard<char>(exception.getMessage()))
+		+ ". (Occurred in entity '"
+		+ std::string(*XercesStringGuard<char>(exception.getSystemId()))
+		+ "', at line "
+		+ std::to_string(exception.getLineNumber())
+		+ ", column "
+		+ std::to_string(exception.getColumnNumber())
+		+ ".)"
 	);
 }