28     def _add_regex(self, string, flags):  argument
32         self.regex = re_cache.get(string, None)
34             self.regex = re.compile(string, flags=flags)
36                 re_cache[string] = self.regex
38     def __init__(self, string, cache=True, flags=0):  argument
46         self._add_regex(string, flags)
65     def match(self, string):  argument
70         self.last_match = self.regex.match(string)
73     def search(self, string):  argument
78         self.last_match = self.regex.search(string)
81     def findall(self, string):  argument
86         return self.regex.findall(string)
88     def split(self, string):  argument
93         return self.regex.split(string)
95     def sub(self, sub, string, count=0):  argument
100         return self.regex.sub(sub, string, count=count)