Changed external functions to enable global installation

* up until now all external functions were locally installed to a specific XalanTransformer instance contained within a TransformationGuard instance
** this had to change as I planned to add a "execute-transformation" function based on TransformationGuard which would have led to recursive self-instantiation
** global external functions have to be thread-safe
* as global external function can not be provided with a reference to a transformation-specific FilesystemFacade instance, the working path is now determined using xalan::Locator
** currently using pointer arithmetics on XMLCh* to remove the "file://" prefix of the URI returned by locator->getSystemId(), may be unsafe
* added compilation unit for PlattformGuard as it now contains function installation in addition to plattform lifetime management

1 files changed, 2 insertions, 15 deletions

diff --git a/src/plattform_guard.h b/src/plattform_guard.h
index fe8b954..12b19f0 100644
--- a/src/plattform_guard.h
+++ b/src/plattform_guard.h
@@ -1,24 +1,11 @@
 #ifndef INPUTXSLT_SRC_PLATTFORM_GUARD_H_
 #define INPUTXSLT_SRC_PLATTFORM_GUARD_H_
 
-#include <xalanc/Include/PlatformDefinitions.hpp>
-#include <xalanc/XalanTransformer/XalanTransformer.hpp>
-
-#include <xercesc/util/PlatformUtils.hpp>
-
-#include "common.h"
-
 namespace InputXSLT {
 
 struct PlattformGuard {
-	PlattformGuard() {
-		xercesc::XMLPlatformUtils::Initialize();
-		xalan::XalanTransformer::initialize();
-	}
-
-	~PlattformGuard() {
-		xalan::XalanTransformer::terminate();
-	}
+	PlattformGuard();
+	~PlattformGuard();
 };
 
 }