Setting the correct work directory in FunctionExternalCommand

* changed the XObjectValue constructor to accept a pointer to FilesystemContext instead of instantiating the context by itself
* the FilesystemContext is now instantiated in the "callConstructDocument" member method of "FunctionBase"
** a const reference to FilesystemContext is passed to all "constructDocument" member method implementations
* the FilesystemContext is currently only used by FunctionExternal command to set the correct work directory in "boost::process::context"
** this is required so calling external commands from inside a stylesheet works as expected
*** i.e. from inside the directory the stylesheet is located in
* modified all remaining external function implementations accordingly

1 files changed, 4 insertions, 3 deletions

diff --git a/src/function/generate.cc b/src/function/generate.cc
index df5e65b..f9cd449 100644
--- a/src/function/generate.cc
+++ b/src/function/generate.cc
@@ -15,9 +15,10 @@
 namespace InputXSLT {
 
 DomDocumentCache::document_ptr FunctionGenerate::constructDocument(
-	xalan::XSLTInputSource  inputSource,
-	xalan::XSLTInputSource  transformationSource,
-	boost::filesystem::path targetPath
+	const FilesystemContext&,
+	xalan::XSLTInputSource   inputSource,
+	xalan::XSLTInputSource   transformationSource,
+	boost::filesystem::path  targetPath
 ) const {
 	DomDocumentCache::document_ptr domDocument(
 		DomDocumentCache::createDocument("content")