138 def match(pattern, string, flags=0):  argument
143 def search(pattern, string, flags=0):  argument
148 def sub(pattern, repl, string, count=0, flags=0):  argument
157 def subn(pattern, repl, string, count=0, flags=0):  argument
168 def split(pattern, string, maxsplit=0, flags=0):  argument
173 def findall(pattern, string, flags=0):  argument
185     def finditer(pattern, string, flags=0):  argument
192 def compile(pattern, flags=0):  argument
201 def template(pattern, flags=0):  argument
208 def escape(pattern):  argument
279 def _expand(pattern, match, template):  argument
284 def _subx(pattern, template):  argument