diff --git a/internal/stringtool.hpp b/internal/stringtool.hpp
new file mode 100644
index 0000000..9a9056e
--- /dev/null
+++ b/internal/stringtool.hpp
@@ -0,0 +1,11 @@
+template<class T>
+T GetFileName(T const & path, T const & delims = "/\\")
+{
+  return path.substr(path.find_last_of(delims) + 1);
+}
+template<class T>
+T remove_ext(T const & filename)
+{
+  typename T::size_type const p(filename.find_last_of('.'));
+  return p > 0 && p != T::npos ? filename.substr(0, p) : filename;
+}