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| Date | Thu, 9 Apr 2015 08:00:33 +1000 |
| From | Cameron Simpson <cs@zip.com.au> |
| To | python-list@python.org |
| Subject | Re: Get nesting of regex groups |
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On 08Apr2015 21:30, Denis McMahon <denismfmcmahon@gmail.com> wrote:
>On Wed, 08 Apr 2015 22:54:57 +0200, Mattias Ugelvik wrote:
>
>> Example: re.compile('(?P<outer>(?P<inner>a))')
>>
>> How can I detect that 'inner' is a nested group of 'outer'? I know that
>> 'inner' comes later, because I can use the `regex.groupindex` (thanks to
>> your help earlier:
>> https://mail.python.org/pipermail/python-list/2015-April/701594.html).
>
>Pardon me for stating the obvious, but as the person defining the re, and
>assuming you haven't generated another sub-pattern somewhere in the same
>re with the same name, how can inner ever not be a nested group of outer?
If he has to ask this question, one might presume that he is not the source of
the regexp. Ergo, he may not know the regexp structure ahead of time for
whatever reason. I could invent scenarios for that, but perhaps Mattias can
describe his situation some more.
Cheers,
Cameron Simpson <cs@zip.com.au>
In article <CF3rw3.n0x@eskimo.com> pirih@eskimo.com (Chris Pirih) writes:
| Wotsa zerk?
It's a portable hemispherical perforated spooge flange.
- Chuck Rogers, car377@torreys.att.com
Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Get nesting of regex groups Mattias Ugelvik <uglemat@gmail.com> - 2015-04-08 22:54 +0200
Re: Get nesting of regex groups Denis McMahon <denismfmcmahon@gmail.com> - 2015-04-08 21:30 +0000
Re: Get nesting of regex groups Cameron Simpson <cs@zip.com.au> - 2015-04-09 08:00 +1000
Re: Get nesting of regex groups Mattias Ugelvik <uglemat@gmail.com> - 2015-04-08 23:58 +0200
Re: Get nesting of regex groups Mattias Ugelvik <uglemat@gmail.com> - 2015-04-09 00:15 +0200
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