/// return true if a unicode char is a space.
bool isSpace(char_type c);
-/// return true if a unicode char is a digit.
-bool isDigit(char_type c);
+/// return true if a unicode char is a numeral.
+bool isNumber(char_type c);
/// return whether \p c is a digit in the ASCII range
bool isDigitASCII(char_type c);
/// return whether \p c is alpha or a digit in the ASCII range
bool isAlnumASCII(char_type c);
+/// return whether \p c is in the ASCII range
+bool isASCII(char_type c);
+
} // namespace lyx
#endif // TEXTUTILS_H