Implemented basic external transform function

* "InputXSLT:transform" expects two input arguments and executes the given transformation into the given target file
** this function respresents a important step in the direction of making it possible to write an actual static site generator on top of InputXSLT using XSLT
* added basic "transform" test case
* updated README.md to include this new function

1 files changed, 7 insertions, 0 deletions

diff --git a/src/plattform_guard.cc b/src/plattform_guard.cc
index 2c3cee4..da3b6d7 100644
--- a/src/plattform_guard.cc
+++ b/src/plattform_guard.cc
@@ -9,6 +9,7 @@
 #include "function/read_file.h"
 #include "function/read_xml_file.h"
 #include "function/read_directory.h"
+#include "function/transform.h"
 
 namespace InputXSLT {
 
@@ -37,6 +38,12 @@ PlattformGuard::PlattformGuard() {
 		xalan::XalanDOMString("read-directory"),
 		InputXSLT::FunctionReadDirectory()
 	);
+
+	xalan::XalanTransformer::installExternalFunctionGlobal(
+		customNamespace,
+		xalan::XalanDOMString("transform"),
+		InputXSLT::FunctionTransform()
+	);
 }
 
 PlattformGuard::~PlattformGuard() {