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Created on 2010-03-12 10:59 by oliv, last changed 2022-04-11 14:56 by admin. This issue is now closed.
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| msg100926 - (view) | Author: (oliv) | Date: 2010-03-12 10:59 | |
Using python 2.6.4 on Arch Linux
The regular expression syntax in python indicate:
(?(id/name)yes-pattern|no-pattern)
Will try to match with yes-pattern if the group with given id or name exists, and with no-pattern if it doesn’t.
I used that functionnality but the code doesn't works anymore:
import re
myre = re.compile('(?P<port>[0-9]+/(tcp|udp))\s+(?P<status>\S+)\s+(?P<service>[a-zA-Z0-9_-]+)\s*(?P<details>.*)')
myre.sub('(?(<details>)\g<details>|\g<service>)',"443/tcp open ssl Microsoft IIS SSL")
> The output is:
'(?(<details>)Microsoft IIS SSL|ssl)'
Instead of:
Microsoft IIS SSL
It looks like a bug as it was working earlier...
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| msg100937 - (view) | Author: Guido van Rossum (gvanrossum) *  |
Date: 2010-03-12 15:35 | |
You can't use (...) syntax in substitution strings, only \N references. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:56:58 | admin | set | github: 52369 |
| 2010-03-12 15:35:57 | gvanrossum | set | status: open -> closed nosy: + gvanrossum messages: + msg100937 resolution: not a bug |
| 2010-03-12 15:04:43 | brian.curtin | set | priority: normal type: behavior components: + Library (Lib), - Build stage: test needed |
| 2010-03-12 10:59:16 | oliv | create | |