Re: Finding all instances of a string in an XML file

Path	csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!xlned.com!feeder1.xlned.com!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path	<python-python-list@m.gmane.org>
X-Original-To	python-list@python.org
Delivered-To	python-list@mail.python.org
X-Spam-Status	OK 0.008
X-Spam-Evidence	'H': 0.98; 'S': 0.00; 'output': 0.05; 'subject:file': 0.07; 'string': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'subject:string': 0.09; 'received:80.91.229.3': 0.16; 'received:dip0.t-ipconnect.de': 0.16; 'received:plane.gmane.org': 0.16; 'received:t-ipconnect.de': 0.16; 'subject:XML': 0.16; 'elements': 0.16; '(but': 0.19; 'appears': 0.22; 'header:User-Agent:1': 0.23; 'parse': 0.24; 'looks': 0.24; 'header:X-Complaints-To:1': 0.27; 'xml': 0.29; 'dom': 0.31; 'writes:': 0.31; 'subject:all': 0.32; '(e.g.': 0.33; 'could': 0.34; 'there': 0.35; 'leads': 0.36; 'charset:us-ascii': 0.36; 'jason': 0.38; 'to:addr:python-list': 0.38; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'times': 0.62; 'received:217': 0.63; 'high': 0.63; 'such': 0.63; 'provide': 0.64; 'more': 0.64; 'approaches': 0.68; 'elementary': 0.84; 'visitor': 0.84
X-Injected-Via-Gmane	http://gmane.org/
To	python-list@python.org
From	dieter <dieter@handshake.de>
Subject	Re: Finding all instances of a string in an XML file
Date	Fri, 21 Jun 2013 08:17:24 +0200
References	<CANy1k1igA3PLR-Pgy9w4T1pbn7d2tK9=6tNpnett6iTjACDs7w@mail.gmail.com>
Mime-Version	1.0
Content-Type	text/plain; charset=us-ascii
X-Gmane-NNTP-Posting-Host	pd9e0b661.dip0.t-ipconnect.de
User-Agent	Gnus/5.1008 (Gnus v5.10.8) XEmacs/21.4.22 (linux)
Cancel-Lock	sha1:+Seg+b+3Pw36WEOkM4v34ICKHJ8=
X-BeenThere	python-list@python.org
X-Mailman-Version	2.1.15
Precedence	list
List-Id	General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe	<http://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	<http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups	comp.lang.python
Message-ID	<mailman.3653.1371795459.3114.python-list@python.org> (permalink)
Lines	30
NNTP-Posting-Host	2001:888:2000:d::a6
X-Trace	1371795459 news.xs4all.nl 15988 [2001:888:2000:d::a6]:40661
X-Complaints-To	abuse@xs4all.nl
Xref	csiph.com comp.lang.python:48845

Show key headers only | View raw

Jason Friedman <jsf80238@gmail.com> writes:

> I have XML which looks like:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <!DOCTYPE KMART SYSTEM "my.dtd">
> <LEVEL_1>
>   <LEVEL_2 ATTR="hello">
>     <ATTRIBUTE NAME="Property X" VALUE ="2"/>
>   </LEVEL_2>
>   <LEVEL_2 ATTR="goodbye">
>     <ATTRIBUTE NAME="Property Y" VALUE ="NULL"/>
>     <LEVEL_3 ATTR="aloha">
>       <ATTRIBUTE NAME="Property X" VALUE ="3"/>
>     </LEVEL_3>
>     <ATTRIBUTE NAME="Property Z" VALUE ="welcome"/>
>   </LEVEL_2>
> </LEVEL_1>
>
> The "Property X" string appears twice times and I want to output the "path"
> that leads  to all such appearances.

You could use "lxml" and its "xpath" support.

This is a high end approach: you would use a powerful (and big)
infrastructure (but one which could also be of use for other
XML applications). There are more elementary approaches as well
(e.g. parse the XML into a DOM and provide your own visitor
to find the elements you are interested in).

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

Thread

Re: Finding all instances of a string in an XML file dieter <dieter@handshake.de> - 2013-06-21 08:17 +0200

csiph-web