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Groups > comp.lang.python > #57775

Re: Parsing multiple lines from text file using regex

From Ben Finney <ben+python@benfinney.id.au>
Subject Re: Parsing multiple lines from text file using regex
Date 2013-10-28 10:34 +1100
References <mailman.1665.1382911575.18130.python-list@python.org> <op.w5mwa3iaa8ncjz@gnudebeest> <roy-A61323.18431627102013@news.panix.com>
Newsgroups comp.lang.python
Message-ID <mailman.1671.1382917205.18130.python-list@python.org> (permalink)

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Roy Smith <roy@panix.com> writes:

> In article <op.w5mwa3iaa8ncjz@gnudebeest>,
>  "Rhodri James" <rhodri@wildebst.demon.co.uk> wrote:
>
> > I really, really wouldn't do this with a single regexp.  You'll get a much  
> > easier to understand program if you implement a small state machine  
> > instead.
>
> And what is a regex if not a small state machine?

Regex is not a state machine implemented by the original poster :-)

Or, in other words, I interpret Rhodri as saying that the right way to
do this is by implementing a *different* small state machine, which will
address the task better than the small state machine of regex.

-- 
 \         “Pinky, are you pondering what I'm pondering?” “I think so, |
  `\         Brain, but three round meals a day wouldn't be as hard to |
_o__)                                 swallow.” —_Pinky and The Brain_ |
Ben Finney

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Thread

Parsing multiple lines from text file using regex "Marc" <marc@marcd.org> - 2013-10-27 17:09 -0400
  Re: Parsing multiple lines from text file using regex "Rhodri James" <rhodri@wildebst.demon.co.uk> - 2013-10-27 22:19 +0000
    Re: Parsing multiple lines from text file using regex Roy Smith <roy@panix.com> - 2013-10-27 18:43 -0400
      Re: Parsing multiple lines from text file using regex Ben Finney <ben+python@benfinney.id.au> - 2013-10-28 10:34 +1100

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