Changed FunctionBase FilesystemContext base to working directory

* this changes filesystem context resolution for external function execution to be relative to the working directory
** this was changed to enable module support in BuildXSLT
*** ... which is in turn required as a foundation for extracting the detail transformations into a separate "StaticXSLT" application
* added parameter-less FilesystemContext constructor which defaults to the working directory

2 files changed, 4 insertions, 0 deletions

diff --git a/src/support/filesystem_context.cc b/src/support/filesystem_context.cc
index be2cfb0..b726f1b 100644
--- a/src/support/filesystem_context.cc
+++ b/src/support/filesystem_context.cc
@@ -64,6 +64,9 @@ FilesystemContext::FilesystemContext(const boost::filesystem::path& path):
 FilesystemContext::FilesystemContext(const std::string& path):
 	FilesystemContext(boost::filesystem::path(path)) { }
 
+FilesystemContext::FilesystemContext():
+	path_(workingDirectory) { }
+
 boost::filesystem::path FilesystemContext::resolve(
 	const xalan::XalanDOMString& path) const {
 	return this->resolve(toString(path));
diff --git a/src/support/filesystem_context.h b/src/support/filesystem_context.h
index c00fe29..eefc4a3 100644
--- a/src/support/filesystem_context.h
+++ b/src/support/filesystem_context.h
@@ -22,6 +22,7 @@ class FilesystemContext {
 
 		explicit FilesystemContext(const boost::filesystem::path&);
 		explicit FilesystemContext(const std::string&);
+		FilesystemContext();
 
 		boost::filesystem::path resolve(const xalan::XalanDOMString&) const;
 		boost::filesystem::path resolve(const boost::filesystem::path&) const;