Removed unnecessary template member methods from TranformationFacade

* neither the constructor nor the generate member methods need to be templatized
** only supported "output" argument is now a reference to a "std::basic_ostream<char>" instance
** the caller is responsible for e.g. writing the output to disk
* this was done to simplify the basic interface of InputXSLT
* removed "default_params" testcase along with default parameter generation
** this feature is neither used nor required

1 files changed, 8 insertions, 1 deletions

diff --git a/ixslt.cc b/ixslt.cc
index b1671b3..abc7e1a 100644
--- a/ixslt.cc
+++ b/ixslt.cc
@@ -1,5 +1,6 @@
 #include "boost/optional.hpp"
 #include "boost/program_options.hpp"
+#include <boost/filesystem/fstream.hpp>
 
 #include <string>
 #include <vector>
@@ -117,9 +118,15 @@ bool process(const boost::program_options::variables_map& variables) {
 
 		try {
 			if ( variables.count("target") ) {
-				transformation->generate(
+				boost::filesystem::ofstream file(
 					variables["target"].as<std::string>()
 				);
+
+				if ( file.is_open() ) {
+					transformation->generate(file);
+				} else {
+					return false;
+				}
 			} else {
 				transformation->generate(std::cout);
 			}