正則表達式將文本字符串拆分爲字典作爲組

Question

我正在嘗試RegEx字符串輸出並將其添加到字典中作爲文本組，並且我正在使用re.split()。

我的字符串輸出爲：

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 

這裏我解析的代碼：

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 

我的問題是，re.split刪除從文本模式有可能拆分無需拆卸分隔符？

輸出結果是這樣的：

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

如果該模式包括捕獲組，該組將不會被排除在外：

>>> 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