Re: a little parsing challenge ☺

From	Thomas Boell <tboell@domain.invalid>
Newsgroups	comp.lang.lisp, comp.lang.python, comp.lang.perl.misc, comp.lang.ruby, comp.lang.scheme
Subject	Re: a little parsing challenge ☺
Date	2011-07-17 17:49 +0200
Organization	albasani.net
Message-ID	<20110717174911.6f00792f@arcadia> (permalink)
References	<36037253-086b-4467-a1db-9492d3772e78@r5g2000prf.googlegroups.com> <99245842-e205-4a34-8f9d-c64d41e044b6@j9g2000prj.googlegroups.com>

Cross-posted to 5 groups.

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On Sun, 17 Jul 2011 02:48:42 -0700 (PDT)
Raymond Hettinger <python@rcn.com> wrote:

> On Jul 17, 12:47 am, Xah Lee <xah...@gmail.com> wrote:
> > i hope you'll participate. Just post solution here. Thanks.
> 
> http://pastebin.com/7hU20NNL

I'm new to Python. I think I'd have done it in a similar way (in any
language). Your use of openers/closers looks nice though. In the
initialization of openers, I guess you implicitly create a kind of
hash, right? Then the 'in' operator checks for the keys. That is elegant
because you have the openers and closers right next to each other, not
in separate lists.

But why do you enumerate with start=1? Shouldn't you start with index 0?

Thread

a little parsing challenge ☺ Xah Lee <xahlee@gmail.com> - 2011-07-17 00:47 -0700
  Re: a little parsing challenge ☺ Raymond Hettinger <python@rcn.com> - 2011-07-17 02:48 -0700
    Re: a little parsing challenge ☺ Robert Klemme <shortcutter@googlemail.com> - 2011-07-17 15:20 +0200
      Re: a little parsing challenge ☺ mhenn <michihenn@hotmail.com> - 2011-07-17 15:55 +0200
        Re: a little parsing challenge ☺ Robert Klemme <shortcutter@googlemail.com> - 2011-07-17 18:01 +0200
          Re: a little parsing challenge ☺ Robert Klemme <shortcutter@googlemail.com> - 2011-07-17 18:54 +0200
    Re: a little parsing challenge ☺ Thomas Boell <tboell@domain.invalid> - 2011-07-17 17:49 +0200
      Re: a little parsing challenge ☺ Raymond Hettinger <python@rcn.com> - 2011-07-17 12:16 -0700
    Re: a little parsing challenge ☺ Xah Lee <xahlee@gmail.com> - 2011-07-18 07:39 -0700
      Re: a little parsing challenge ☺ Robert Klemme <shortcutter@googlemail.com> - 2011-07-20 08:23 +0200
      Re: a little parsing challenge ☺ Xah Lee <xahlee@gmail.com> - 2011-07-20 03:31 -0700
        Re: a little parsing challenge ☺ "Uri Guttman" <uri@StemSystems.com> - 2011-07-20 12:31 -0400
          Re: a little parsing challenge ☺ rusi <rustompmody@gmail.com> - 2011-07-20 10:30 -0700
          Re: a little parsing challenge ☺ merlyn@stonehenge.com (Randal L. Schwartz) - 2011-07-20 12:06 -0700
            Re: a little parsing challenge ☺ Jason Earl <jearl@notengoamigos.org> - 2011-07-20 14:57 -0600
    Re: a little parsing challenge ☺ Xah Lee <xahlee@gmail.com> - 2011-07-19 09:54 -0700
      Re: a little parsing challenge ☺ Thomas Jollans <t@jollybox.de> - 2011-07-19 20:07 +0200
        Re: a little parsing challenge ☺ Xah Lee <xahlee@gmail.com> - 2011-07-21 05:58 -0700
          Re: a little parsing challenge ☺ Ian Kelly <ian.g.kelly@gmail.com> - 2011-07-21 08:26 -0600
            Re: a little parsing challenge ☺ Xah Lee <xahlee@gmail.com> - 2011-07-21 08:36 -0700
              Re: a little parsing challenge ☺ python@bdurham.com - 2011-07-21 12:43 -0400
                Re: a little parsing challenge ☺ Xah Lee <xahlee@gmail.com> - 2011-07-21 11:53 -0700
                Re: a little parsing challenge ☺ Terry Reedy <tjreedy@udel.edu> - 2011-07-21 18:37 -0400
          Re: a little parsing challenge ☺ John O'Hagan <research@johnohagan.com> - 2011-07-25 15:57 +1000
      Re: a little parsing challenge ☺ Ian Kelly <ian.g.kelly@gmail.com> - 2011-07-19 12:08 -0600
  Re: a little parsing challenge ☺ Chris Angelico <rosuav@gmail.com> - 2011-07-17 21:34 +1000
    Re: a little parsing challenge ☺ rusi <rustompmody@gmail.com> - 2011-07-17 04:52 -0700
    Re: a little parsing challenge ☺ Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-07-17 16:15 +0200
      Re: a little parsing challenge ☺ Raymond Hettinger <python@rcn.com> - 2011-07-17 12:18 -0700
        Re: a little parsing challenge ☺ Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-07-17 22:16 +0200
          Re: a little parsing challenge ☺ Thomas Jollans <t@jollybox.de> - 2011-07-17 22:57 +0200
      Re: a little parsing challenge ☺ Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-07-17 23:43 +0200
      Re: a little parsing challenge ☺ Rouslan Korneychuk <rouslank@msn.com> - 2011-07-18 03:09 -0400
        Re: a little parsing challenge ☺ Stefan Behnel <stefan_ml@behnel.de> - 2011-07-18 09:24 +0200
          Re: a little parsing challenge ☺ Rouslan Korneychuk <rouslank@msn.com> - 2011-07-18 04:04 -0400
        Re: a little parsing challenge ☺ Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-07-18 18:46 +0200
          Re: a little parsing challenge ☺ Rouslan Korneychuk <rouslank@msn.com> - 2011-07-18 14:14 -0400
        Re: a little parsing challenge ☺ Xah Lee <xahlee@gmail.com> - 2011-07-21 06:23 -0700
          Re: a little parsing challenge ☺ Rouslan Korneychuk <rouslank@msn.com> - 2011-07-21 17:54 -0400
  Re: a little parsing challenge ☺ gene heskett <gheskett@wdtv.com> - 2011-07-17 10:26 -0400
  Re: a little parsing challenge ☺ Thomas Jollans <t@jollybox.de> - 2011-07-17 08:31 -0700
    Re: a little parsing challenge ☺ Xah Lee <xahlee@gmail.com> - 2011-07-19 10:49 -0700
      Re: a little parsing challenge ☺ Thomas Jollans <t@jollybox.de> - 2011-07-19 20:14 +0200
        Re: a little parsing challenge ☺ Xah Lee <xahlee@gmail.com> - 2011-07-21 05:29 -0700
          Re: a little parsing challenge ☺ Thomas Jollans <t@jollybox.de> - 2011-07-21 15:21 +0200
      Re: a little parsing challenge ☺ Thomas Jollans <t@jollybox.de> - 2011-07-19 20:17 +0200
  Re: a little parsing challenge ☺ rantingrick <rantingrick@gmail.com> - 2011-07-17 18:52 -0700
  Re: a little parsing challenge ☺ Billy Mays <81282ed9a88799d21e77957df2d84bd6514d9af6@myhashismyemail.com> - 2011-07-18 13:12 -0400
    Re: a little parsing challenge ☺ Ian Kelly <ian.g.kelly@gmail.com> - 2011-07-18 12:10 -0600
      Re: a little parsing challenge ☺ Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-07-18 23:59 +0200
        Re: a little parsing challenge ☺ Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-07-19 08:09 +0200
        Re: a little parsing challenge ☺ Xah Lee <xahlee@gmail.com> - 2011-07-19 10:32 -0700
    Re: a little parsing challenge ☺ Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-07-19 09:56 +1000
      Re: a little parsing challenge ☺ Billy Mays <noway@nohow.com> - 2011-07-18 22:07 -0400
        Re: a little parsing challenge ☺ rusi <rustompmody@gmail.com> - 2011-07-18 19:50 -0700
          Re: a little parsing challenge ☺ Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-07-19 13:11 +1000
            Re: a little parsing challenge ☺ rusi <rustompmody@gmail.com> - 2011-07-18 21:59 -0700
              Re: a little parsing challenge ☺ Chris Angelico <rosuav@gmail.com> - 2011-07-19 15:36 +1000
        Re: a little parsing challenge ☺ MRAB <python@mrabarnett.plus.com> - 2011-07-19 04:08 +0100
        Re: a little parsing challenge ☺ Benjamin Kaplan <benjamin.kaplan@case.edu> - 2011-07-18 20:54 -0700
        Re: a little parsing challenge ☺ Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-07-19 14:30 +1000
        Re: a little parsing challenge ☺ Xah Lee <xahlee@gmail.com> - 2011-07-19 01:58 -0700
    Re: a little parsing challenge ☺ Xah Lee <xahlee@gmail.com> - 2011-07-19 10:14 -0700
      Re: a little parsing challenge ☺ Billy Mays <81282ed9a88799d21e77957df2d84bd6514d9af6@myhashismyemail.com> - 2011-07-19 13:33 -0400
        Re: a little parsing challenge ☺ Xah Lee <xahlee@gmail.com> - 2011-07-19 11:12 -0700
          Re: a little parsing challenge ☺ Terry Reedy <tjreedy@udel.edu> - 2011-07-19 15:09 -0400
            Re: a little parsing challenge ☺ jmfauth <wxjmfauth@gmail.com> - 2011-07-19 23:29 -0700
              Re: a little parsing challenge ☺ Ian Kelly <ian.g.kelly@gmail.com> - 2011-07-20 01:29 -0600
                Re: a little parsing challenge ☺ jmfauth <wxjmfauth@gmail.com> - 2011-07-20 00:54 -0700
                Re: a little parsing challenge ☺ Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-07-20 18:18 +1000
  Re: a little parsing challenge ? sln@netherlands.com - 2011-07-18 12:34 -0700
  Re: a little parsing challenge ☺ Mark Tarver <dr.mtarver@gmail.com> - 2011-07-19 22:43 -0700

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