正则表达式将文本字符串拆分为dict as group

Question

我试图将RegEx字符串输出并作为一组文本添加到字典中，为此我使用了re.split()。你知道吗

我的字符串输出是：

mpathag (36005076801b2014804000000000001cd) dm-7 Test ,2145
size=488G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 12:0:1:3 sdas  66:192 active ready  running
| `- 13:0:1:3 sdbi  67:192 active ready  running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 12:0:0:3 sdak  66:64  active ready  running
  `- 13:0:0:3 sdba  67:64  active ready  running
mpathz (36005076801b2014804000000000001c4) dm-0 Test ,2145
size=488G features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 12:0:0:0 sdah  66:16  active ready  running
| `- 13:0:0:0 sdax  67:16  active ready  running
 `-+- policy='service-time 0' prio=10 status=enabled
   |- 10:0:0:0 sdb   8:16   active ready  running
   `- 13:0:1:0 sdbf  67:144 active ready  running

下面是我的解析代码：

    output = "mpathag (36005076801b2014804000000000001cd) dm-7 Test ,2145\
    size=488G features='1 queue_if_no_path' hwhandler='0' wp=rw\
    |-+- policy='service-time 0' prio=50 status=active\
    | |- 12:0:1:3 sdas  66:192 active ready  running\
    | `- 13:0:1:3 sdbi  67:192 active ready  running\
    `-+- policy='service-time 0' prio=10 status=enabled\
      |- 12:0:0:3 sdak  66:64  active ready  running\
      `- 13:0:0:3 sdba  67:64  active ready  running\
    mpathz (36005076801b2014804000000000001c4) dm-0 Test ,2145\
    size=488G features='1 queue_if_no_path' hwhandler='0' wp=rw\
    |-+- policy='service-time 0' prio=50 status=active\
    | |- 12:0:0:0 sdah  66:16  active ready  running\
    | `- 13:0:0:0 sdax  67:16  active ready  running\
     `-+- policy='service-time 0' prio=10 status=enabled\
       |- 10:0:0:0 sdb   8:16   active ready  running\
       `- 13:0:1:0 sdbf  67:144 active ready  running"

    devices = re.split('mpath', output)
    for dev in devices:
       print dev

我的问题是重新拆分从文本中删除模式是否可以在不删除分隔符的情况下拆分？你知道吗

输出结果如下：

ag (36005076801b2014804000000000001cd) dm-7 Test ,2145    
size=488G features='1 queue_if_no_path' hwhandler='0' wp=rw    
|-+- policy='service-time 0' prio=50 status=active    
| |- 12:0:1:3 sdas  66:192 active ready  running    
| `- 13:0:1:3 sdbi  67:192 active ready  running    
`-+- policy='service-time 0' prio=10 status=enabled      
  |- 12:0:0:3 sdak  66:64  active ready  running      
  `- 13:0:0:3 sdba  67:64  active ready  running

Answer 1

如果模式包括捕获组，则不会排除该组：

>>> re.split(',', '1,2,3')  # without capturing group
['1', '2', '3']
>>> re.split('(,)', '1,2,3')  # with capturing group
['1', ',', '2', ',', '3']
>>> xs = re.split('(,)', '1,2,3')
>>> [part1+part2 for part1, part2 in zip(xs[1::2], xs[2::2])]
[',2', ',3']

---

devices = re.split('(mpath)', output)
for part1, part2 in zip(devices[1::2], devices[2::2]):
    print part1 + part2