Implemented basic external "execute" function

* enables execution of external programs
** second parameter is passed to stdin
** stdout is captured and returned
** based on booost::process
* this was implemented to enable access to external content preprocessors such as markdown

1 files changed, 7 insertions, 0 deletions

diff --git a/src/plattform_guard.cc b/src/plattform_guard.cc
index d66c8b5..ff4de08 100644
--- a/src/plattform_guard.cc
+++ b/src/plattform_guard.cc
@@ -10,6 +10,7 @@
 #include "function/read_xml_file.h"
 #include "function/read_directory.h"
 #include "function/transform.h"
+#include "function/execute.h"
 
 namespace InputXSLT {
 
@@ -45,6 +46,12 @@ PlattformGuard::PlattformGuard(const std::vector<std::string>& path):
 		xalan::XalanDOMString("transform"),
 		InputXSLT::FunctionTransform(&this->include_resolver_)
 	);
+
+	xalan::XalanTransformer::installExternalFunctionGlobal(
+		customNamespace,
+		xalan::XalanDOMString("execute"),
+		InputXSLT::FunctionExecute(&this->include_resolver_)
+	);
 }
 
 PlattformGuard::~PlattformGuard() {