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From Bachorík Jaroslav <Jaroslav.Bacho...@exprit.cz>
Subject RE: Regular expressions again
Date Wed, 09 Jul 2003 06:52:40 GMT
thanks for your help. now everything is just ok.

jbachorik

-----Original Message-----
From: BAZLEY, Sebastian [mailto:Sebastian.BAZLEY@london.sema.slb.com]
Sent: Tuesday, July 08, 2003 6:17 PM
To: 'JMeter Users List'
Subject: RE: Regular expressions again


Just happened across the Sun Java regex tutorial:

http://java.sun.com/docs/books/tutorial/extra/regex/index.html

JMeter does not use Java.util.regex - but I imagine most of the material
will be relevant.

HTH.
-----Original Message-----
From: BAZLEY, Sebastian 
Sent: 08 July 2003 16:47
To: 'JMeter Users List'
Subject: RE: Regular expressions again


JMeter currently uses Apache ORO (http://jakarta.apache.org/oro/index.html)
to handle regular expressions.

These are Perl5 compatible so a Perl book might help, otherwise "Mastering
Regular Expressions" by O'Reilly is recommended in the JavaDoc for JDK 1.4
(Java regular expressions are based on Perl) - see the Package summary for
java.util.regex.

As Mike says, regular expressions are "greedy" - they will grab as many
characters as they can.

But you can tell them to be non-greedy by adding the qualifier ? - (question
mark).

-- 
The opinions expressed herein are my own, and are not necessarily endorsed
by my employer ...
-----Original Message-----
From: mstover1@apache.org [mailto:mstover1@apache.org]
Sent: 08 July 2003 15:51
To: JMeter Users List
Subject: Re: Regular expressions again


Ending a regex with .* is guaranteed to match the rest of the page.  Try
something like:

<img[^>]*src="([^"]*)"

And buy a book about regular expressions - it's money well spent as regexes
are very complex.

-Mike

On 8 Jul 2003 at 16:29, Bachor¡k Jaroslav wrote:

> Hi,
>
> I need to use the Regular Expression Extractor to get some data out from
the server response. However, I still have troubles with getting it working
properly. The first problem is connected with the "Match No." parameter of
RegExtractor - when I set it to 0 or 1 it works just nice. But when I use
any
other number I get "no match". I'm sure there's more than one occurence of
of
a string I search for but I can't get to it.
> And here goes the second problem - I want to extract all image sources on
web page. I use the following pattern to match the "img" tag ->
<img.*src="(.*)".*
> What I get is either "no match" or a random piece of HTML source code
starting on the first image source and continuig randomly ...
>
> Any help would be appreciated
>
> Regards
>
> JBachorik
>
>
> ---
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>
>
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--
Michael Stover
mstover1@apache.org
Yahoo IM: mstover_ya
ICQ: 152975688
AIM: mstover777

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Zkontrolováno antivirovým systémem AVG (http://www.grisoft.cz).
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Odchozí zpráva neobsahuje viry.
Zkontrolováno antivirovým systémem AVG (http://www.grisoft.cz).
Verze: 6.0.497 / Virová báze: 296 - datum vydání: 04.07.2003
 

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