Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #89579

Re: Python re to extract useful information from each line

Path csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!1.eu.feeder.erje.net!lightspeed.eweka.nl!lightspeed.eweka.nl!newsfeed.xs4all.nl!newsfeed4a.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path <python@mrabarnett.plus.com>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.023
X-Spam-Evidence '*H*': 0.95; '*S*': 0.00; 'subject:Python': 0.06; 'from:addr:mrabarnett.plus.com': 0.16; 'from:addr:python': 0.16; 'from:name:mrab': 0.16; 'line)': 0.16; 'message- id:@mrabarnett.plus.com': 0.16; 'received:192.168.1.4': 0.16; 'wrote:': 0.18; 'split': 0.19; 'header:User-Agent:1': 0.23; 'van': 0.27; 'header:In-Reply-To:1': 0.27; 'easier': 0.31; 'regular': 0.32; 'subject:from': 0.34; 'list': 0.37; 'to:addr:python-list': 0.38; 'pm,': 0.38; 'to:addr:python.org': 0.39; 'pick': 0.64; 'want:': 0.84
X-CM-Score 0.00
X-CNFS-Analysis v=2.1 cv=DZWZq5dW c=1 sm=1 tr=0 a=0nF1XD0wxitMEM03M9B4ZQ==:117 a=0nF1XD0wxitMEM03M9B4ZQ==:17 a=0Bzu9jTXAAAA:8 a=SY9aFQKHIdAA:10 a=IkcTkHD0fZMA:10 a=EBOSESyhAAAA:8 a=J6cfrdm9wWVM9dhmxMIA:9 a=QEXdDO2ut3YA:10
X-AUTH mrabarnett@:2500
Date Wed, 29 Apr 2015 22:28:08 +0100
From MRAB <python@mrabarnett.plus.com>
User-Agent Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0
MIME-Version 1.0
To python-list@python.org
Subject Re: Python re to extract useful information from each line
References <e5473ccc-4f7d-431d-93a7-1aeeededcbf0@googlegroups.com> <220dafbc-25f0-48a7-b37a-c8a77a6f2ffa@googlegroups.com> <mhri39$n45$1@ger.gmane.org>
In-Reply-To <mhri39$n45$1@ger.gmane.org>
Content-Type text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding 7bit
X-BeenThere python-list@python.org
X-Mailman-Version 2.1.20+
Precedence list
List-Id General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive <http://mail.python.org/pipermail/python-list/>
List-Post <mailto:python-list@python.org>
List-Help <mailto:python-list-request@python.org?subject=help>
List-Subscribe <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups comp.lang.python
Message-ID <mailman.99.1430342891.3680.python-list@python.org> (permalink)
Lines 14
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1430342891 news.xs4all.nl 2884 [2001:888:2000:d::a6]:48791
X-Complaints-To abuse@xs4all.nl
X-Received-Bytes 3277
X-Received-Body-CRC 3227909996
Xref csiph.com comp.lang.python:89579

Show key headers only | View raw

On 2015-04-29 22:22, Emile van Sebille wrote:
> On 4/29/2015 1:49 PM, Kashif Rana wrote:
>> pol_elements = re.compile('id\s(?P<p_id>.+?)(?:\sname\s(?P<p_name>.+?))?\sfrom\s(?P<p_from>.+?)\sto\s(?P<p_to>.+?)\s{2}(?P<p_src>[^\s]+?)\s(?P<p_dst>[^\s]+?)\s(?P<p_port>[^\s]+?)(?:(?P<p_nat_status>\snat)\s(?P<p_nat_type>[^\s]+?)(?P<p_nat_ip>\sdip-id\s[^\s]+?)?)?\s(?P<p_action>[^\s]+?)(?:\sschedule\s(?P<p_schedule>[^\s]+?))?(?P<p_log_status>\slog)?$'
>> )
>
>
> ... and that's why we avoid regular expressions... it makes my head hurt
> just looking at that line noise.
>
It might just be easier to split it into a list of fields and then pick
out the ones you want:

fields = re.findall(r'"[^"]+"|\S+', line)

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Python re to extract useful information from each line Kashif Rana <kashifrana84@gmail.com> - 2015-04-29 13:42 -0700
  Re: Python re to extract useful information from each line Kashif Rana <kashifrana84@gmail.com> - 2015-04-29 13:49 -0700
    Re: Python re to extract useful information from each line Emile van Sebille <emile@fenx.com> - 2015-04-29 14:22 -0700
    Re: Python re to extract useful information from each line MRAB <python@mrabarnett.plus.com> - 2015-04-29 22:28 +0100
    Re: Python re to extract useful information from each line Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-04-29 22:30 +0100
    Re: Python re to extract useful information from each line Tim Chase <python.list@tim.thechases.com> - 2015-04-29 17:38 -0500
  Re: Python re to extract useful information from each line sohcahtoa82@gmail.com - 2015-04-29 16:29 -0700
  Re: Python re to extract useful information from each line Paul McGuire <ptmcg@austin.rr.com> - 2015-08-19 12:53 -0700

csiph-web