+ Context & context, std::string const rdelim = std::string());
+void check_comment_bib(std::ostream & os, Context & context);
+
+void fix_child_filename(std::string & name);
+
+std::string const normalize_filename(std::string const & name);
+
+std::string find_file(std::string const & name, std::string const & path,
+ char const * const * extensions);