g = Grab()
g.go('http://domain.com/')
print g.search_rex(re.compile("/(Set:|document=['\"])(.*?)(path*?)/i", g.response.body)).group(1)

  File "/usr/lib/python2.6/re.py", line 190, in compile
    return _compile(pattern, flags)
  File "/usr/lib/python2.6/re.py", line 243, in _compile
    p = sre_compile.compile(pattern, flags)
  File "/usr/lib/python2.6/sre_compile.py", line 506, in compile
    p = sre_parse.parse(p, flags)
  File "/usr/lib/python2.6/sre_parse.py", line 679, in parse
    p = _parse_sub(source, pattern, 0)
  File "/usr/lib/python2.6/sre_parse.py", line 314, in _parse_sub
    itemsappend(_parse(source, state))
  File "/usr/lib/python2.6/sre_parse.py", line 407, in _parse
    if state.flags & SRE_FLAG_VERBOSE:
TypeError: unsupported operand type(s) for &: 'str' and 'int'

g.search_rex(re.compile("/(Set:|document=['\"])(.*?)(path*?)/i", g.response.body)).group(1)

g.search_rex(re.compile("/(Set:|document=['\"])(.*?)(path*?)/i"), g.response.body).group(1)