Tell whether the string is valid key. For IniLikeFile the valid key is any non-empty string. Reimplement this function in the derived class to throw exception from IniLikeGroup when key is invalid.
See Implementation
Tell whether the string is valid key. For IniLikeFile the valid key is any non-empty string. Reimplement this function in the derived class to throw exception from IniLikeGroup when key is invalid.