Find strings by regex

        :param string: regular expression for the string to search for
        :rtype: generator of `StringAnalysis`

def find_strings(self, string=".*"):
        """
        Find strings by regex

        :param string: regular expression for the string to search for
        :rtype: generator of `StringAnalysis`
        """
        for s, sa in self.strings.items():
            if re.match(string, s):
                yield sa