@classmethod
def _define_char(cls, prev: str, current: str) ->bool:
    """
        Helper method that'll tell us if a character has to be treated as a
        special one or it is part of the text that 's intended to be printed
        out.

        Takes the previous character and the current character, in case it is
        one of the special characters defined in the class and is prepended by
        a '' means that it has not to be treated as a special one

        Returns True if it's a special character
        """
    if current in cls.special_chars:
        if prev != '\\':
            return True
    return False
