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Groups > comp.lang.python > #30472

Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212.

From Mark Lawrence <breamoreboy@yahoo.co.uk>
Subject Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212.
Date 2012-09-29 10:38 +0100
References (1 earlier) <5066506D.4020702@tim.thechases.com> <k45kg5$qpo$1@ger.gmane.org> <50665A23.1060300@tim.thechases.com> <mailman.1600.1348889168.27098.python-list@python.org> <50666b49$0$29981$c3e8da3$5496439d@news.astraweb.com>
Newsgroups comp.lang.python
Message-ID <mailman.1612.1348911398.27098.python-list@python.org> (permalink)

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On 29/09/2012 04:30, Steven D'Aprano wrote:
> On Fri, 28 Sep 2012 21:25:35 -0600, Ian Kelly wrote:
>
>> Mine is simpler and faster.
>>
>> r = re.compile("")
>
> The OP doesn't say that you have to compile it, so just:
>
> ''
>
> wins.
>
>
>

My understanding is that Python 3.3 has regressed the performance of ''. 
  Surely the Python devs can speed the performance back up and, just for 
us, use less memory at the same time?

-- 
Cheers.

Mark Lawrence.

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Thread

write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. iMath <redstone-cold@163.com> - 2012-09-28 17:31 -0700
  Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Tim Chase <python.list@tim.thechases.com> - 2012-09-28 20:35 -0500
  Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Paul Rubin <no.email@nospam.invalid> - 2012-09-28 18:42 -0700
  Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-29 02:58 +0100
  Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Tim Chase <python.list@tim.thechases.com> - 2012-09-28 21:17 -0500
  Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Ian Kelly <ian.g.kelly@gmail.com> - 2012-09-28 21:25 -0600
    Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-29 03:30 +0000
      Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Tim Chase <python.list@tim.thechases.com> - 2012-09-28 22:50 -0500
      Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-29 10:38 +0100
      Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Chris Angelico <rosuav@gmail.com> - 2012-09-29 20:05 +1000
      Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-29 11:50 +0100
      Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Ian Kelly <ian.g.kelly@gmail.com> - 2012-09-29 11:04 -0600
      Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Chris Angelico <rosuav@gmail.com> - 2012-09-30 09:26 +1000
  Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Tim Chase <python.list@tim.thechases.com> - 2012-09-28 22:42 -0500
  Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-09-29 00:25 -0400
  Re: write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212. Fg Nu <fgnu32@yahoo.com> - 2012-09-28 21:25 -0700

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