Moved DOM document construction logic into local functions

* this change makes the underlying similarity between all currently implemented external functions obvious
* they more or less only differ in their document construction logic
** i.e. there is a possibility for a second layer of abstraction between the classes derived from xalan::Function and the actual functionality
* added boost::filesystem::path taking overload of the _iterate_ member method to FilesystemGuard
** this overload functions as the _master_ overload that is called by all other overloads which merely perform type conversion and path resolution
** this overload doesn't perform path resolution

1 files changed, 2 insertions, 0 deletions

diff --git a/src/support/filesystem_context.h b/src/support/filesystem_context.h
index f743c89..05d5862 100644
--- a/src/support/filesystem_context.h
+++ b/src/support/filesystem_context.h
@@ -20,6 +20,8 @@ class FilesystemContext {
 		boost::filesystem::path resolve(const std::string&) const;
 		boost::filesystem::path resolve(const xalan::XalanDOMString&) const;
 
+		void iterate(const boost::filesystem::path&,
+		             std::function<void(const boost::filesystem::path&)>) const;
 		void iterate(const std::string&,
 		             std::function<void(const boost::filesystem::path&)>) const;
 		void iterate(const xalan::XalanDOMString&,