human
Complete this python program:
def generate(self):
assistant
#Here is the Python program you requested.

    """Generates a dictionary of all the known CRC formats from:
    http://reveng.sourceforge.net/crc-catalogue/all.htm
    See pwnlib/data/crcsum.txt for more information.
    """
    (curdir, _) = os.path.split(__file__)
    path = os.path.join(curdir, '..', '..', 'data', 'crcsums.txt')
    with open(path) as fd:
        data = fd.read()
    out = {}
    def fixup(s):
        if (s == 'true'):
            return True
        elif (s == 'false'):
            return False
        elif s.startswith('"'):
            assert re.match('"[^"]+"', s)
            return s[1:(-1)]
        elif s.startswith('0x'):
            assert re.match('0x[0-9a-fA-F]+', s)
            return int(s[2:], 16)
        else:
            assert re.match('[0-9]+', s)
            return int(s, 10)
    for l in data.strip().split('\n'):
        if ((not l) or (l[0] == '#')):
            continue
        (ref, l) = l.split('    ', 1)
        cur = {}
        cur['link'] = ('http://reveng.sourceforge.net/crc-catalogue/all.htm#' + ref)
        for key in ['width', 'poly', 'init', 'refin', 'refout', 'xorout', 'check', 'name']:
            cur[key] = fixup(re.findall(('%s=(\\S+)' % key), l)[0])
        cur['name'] = cur['name'].lower().replace('/', '_').replace('-', '_')
        assert (cur['name'] not in out)
        out[cur['name']] = cur
    return out