Implemented basic external "write-file" function

* accepts a path parameter and the content to be written
* removed target parameter form FunctionTransform
** transformation result is now returned as a string
*** nodeset return value is planned
** e.g. writing the result to the fs is optional and has to be achieved using FunctionWriteFile
* changed "transform" test case accordingly
* this marks a paradigm shift and is the continuation of the changes described in 741a70f
** InputXSLT now also implements a output function
* added basic io error handling to FunctionReadFile

1 files changed, 7 insertions, 0 deletions

diff --git a/src/plattform_guard.cc b/src/plattform_guard.cc
index e232d2b..cc3c9c0 100644
--- a/src/plattform_guard.cc
+++ b/src/plattform_guard.cc
@@ -7,6 +7,7 @@
 
 #include "common.h"
 #include "function/read_file.h"
+#include "function/write_file.h"
 #include "function/read_directory.h"
 #include "function/transform.h"
 #include "function/external_text_formatter.h"
@@ -30,6 +31,12 @@ PlattformGuard::PlattformGuard(const std::vector<std::string>& path):
 
 	xalan::XalanTransformer::installExternalFunctionGlobal(
 		customNamespace,
+		xalan::XalanDOMString("write-file"),
+		InputXSLT::FunctionWriteFile(&this->include_resolver_)
+	);
+
+	xalan::XalanTransformer::installExternalFunctionGlobal(
+		customNamespace,
 		xalan::XalanDOMString("read-directory"),
 		InputXSLT::FunctionReadDirectory(&this->include_resolver_)
 	);