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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def elide(self, line: str, regexp: str, quantity: int = 1, offset: int = 0) -> str: """ Erase a section of a line, matching on a regex, pushing in a quantity of blank spaces, and jumping forward with an offset if necessary. If the elided vowel was strong, the vowel merged with takes on the stress. :param line: :param regexp: :param quantity: :param offset: :return: uv āvaritia mar avaritia """

        matcher = re.compile(regexp)
        positions = matcher.finditer(line)
        new_line = line
        for match in positions:
            (start, end) = match.span()  # pylint: disable=unused-variable
            if (start > 0) and new_line[start - 1: start + 1] in self.constants.DIPTHONGS:
                vowel_to_coerce = new_line[end - 1]
                new_line = new_line[:(start - 1) + offset] + (" " * (quantity + 2)) + \
                           self.constants.stress_accent_dict[vowel_to_coerce] + new_line[end:]
            else:
                new_line = new_line[:start + offset] + \
                           (" " * quantity) + new_line[start + quantity + offset:]
        return new_line