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Re: String splitting with exceptions

From Neil Cerutti <neilc@norwich.edu>
Newsgroups comp.lang.python
Subject Re: String splitting with exceptions
Date 2013-08-28 18:18 +0000
Organization Norwich University
Message-ID <b86t73Ff4flU2@mid.individual.net> (permalink)
References <kvl9e5$19gk$1@leila.iecc.com> <1377710043.22605.15211369.55EB0B33@webmail.messagingengine.com> <mailman.320.1377711095.19984.python-list@python.org>

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On 2013-08-28, Tim Chase <python.list@tim.thechases.com> wrote:
> On 2013-08-28 13:14, random832@fastmail.us wrote:
>> On Wed, Aug 28, 2013, at 12:44, John Levine wrote:
>> > I have a crufty old DNS provisioning system that I'm rewriting
>> > and I hope improving in python.  (It's based on tinydns if you
>> > know what that is.)
>> > 
>> > The record formats are, in the worst case, like this:
>> > 
>> > foo.[DOM]::[IP6::4361:6368:6574]:600::
>> 
>> Otherwise:
>> >>> re.findall('((?:[^[:]|\[[^]]*\])*):?',s)
>> ['foo.[DOM]', '', '[IP6::4361:6368:6574]', '600', '', '']
>> 
>> I'm not sure why _your_ list only has one empty string at the end.
>
> I wondered that.

Good point. My little parser fails on that, too. It'll miss *all*
final fields. My parser needs "if s: yield s[b:]" at the end, to
operate like str.split, where the empty string is special.

-- 
Neil Cerutti

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Thread

String splitting with exceptions John Levine <johnl@iecc.com> - 2013-08-28 16:44 +0000
  Re: String splitting with exceptions Skip Montanaro <skip@pobox.com> - 2013-08-28 11:55 -0500
  Re: String splitting with exceptions random832@fastmail.us - 2013-08-28 13:14 -0400
    Re: String splitting with exceptions John Levine <johnl@iecc.com> - 2013-08-28 21:35 +0000
  Re: String splitting with exceptions Tim Chase <python.list@tim.thechases.com> - 2013-08-28 12:32 -0500
    Re: String splitting with exceptions Neil Cerutti <neilc@norwich.edu> - 2013-08-28 18:18 +0000
  Re: String splitting with exceptions Neil Cerutti <neilc@norwich.edu> - 2013-08-28 18:08 +0000
    Re: String splitting with exceptions Peter Otten <__peter__@web.de> - 2013-08-28 20:31 +0200
  Re: String splitting with exceptions wxjmfauth@gmail.com - 2013-08-29 00:26 -0700

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