bool isStrDbl(std::string const & str);
/// does the string contain a digit?
-bool hasDigit(docstring const & str);
+bool hasDigitASCII(docstring const & str);
+
+bool isHexChar(char_type);
bool isHex(docstring const & str);
/// found, else -1. The last item in \p str must be "".
int findToken(char const * const str[], std::string const & search_token);
+/// A test string that is supposed to be translated into the gettext code
+std::string const languageTestString();
+
template <class Arg1>
docstring bformat(docstring const & fmt, Arg1);