search_mode mode = must_exist);
///
-bool isLyXFilename(std::string const & filename);
+bool isLyXFileName(std::string const & filename);
///
-bool isSGMLFilename(std::string const & filename);
+bool isSGMLFileName(std::string const & filename);
///
-bool isValidLaTeXFilename(std::string const & filename);
+bool isValidLaTeXFileName(std::string const & filename);
/** Returns the path of a library data file.
Search the file name.ext in the subdirectory dir of