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 <CALuFYF_BOVhHEWvtQM2oHLzPeWxWncX3Ud21vUHf5BB4K5Q6Nw@mail.gmail.com>
Date: Fri, 12 Jul 2013 15:47:24 +0100
Message-ID: 
 <CAOGo0Vb7-Uj0VQQGx3XKgS0pmSPRFADcN8AQb2YN0JP7x70_VQ@mail.gmail.com>
Subject: Re: Regular expression help
From: sebb <sebbaz@gmail.com>
To: JMeter Users List <user@jmeter.apache.org>
Content-Type: text/plain; charset=ISO-8859-1

On 12 July 2013 09:57, Niraj <niraj.khatmode@gmail.com> wrote:
> Can someone please help me in regular expression
>
>
> test.FilterPanel.viewId = \"136e6c9e-689a-4d24-a3bc-2ace008bee2f\"

> *i want to extract **136e6c9e-689a-4d24-a3bc-2ace008bee2f **from  this. *
>
> *Please let me know what should be correct reg ex *
> *
> *
> *i tried **viewId = \"(.*)\ But got the
> error org.apache.oro.text.MalformedCachePatternException: Invalid
> expression: viewId = \"(.*)\*
> *Trailing \ in expression.*

It's quite difficult reading your posting because of all the extra *
characters that are scattered about.

But assuming you start with

test.FilterPanel.viewId = \"136e6c9e-689a-4d24-a3bc-2ace008bee2f\"

and want to extract

136e6c9e-689a-4d24-a3bc-2ace008bee2f

Then the way to do it is to take your input, and escape any meta-characters:
In this case, the \ is the only special char, so it becomes:

test.FilterPanel.viewId = \\"136e6c9e-689a-4d24-a3bc-2ace008bee2f\\"

Now put () around the part you want to extract:

test.FilterPanel.viewId = \\"(136e6c9e-689a-4d24-a3bc-2ace008bee2f)\\"

Of course this will only extra the exact id, so now you need to make
the id dynamic.

In this case, the Id seems to consist of lower-case hex and - only,
which is matched by

[-\da-f]+

In the above, the - must come first, otherwise it is treated as a
range, as in a-f.
The \d means digit; you could use 1-9 instead

So the final expression becomes:

test.FilterPanel.viewId = \\"([-\da-f]+)\\"

If the Id could include other characters, you could also use the fact
that it is terminated by \, so you could replace

[-\da-f]+

by

[^\\]+

which means anything except \, repeated any number of times.

Try this process out in the Tree View Listener regex pane.

> *
> *Thanks,*
> *Niraj*
> *
> *
> *
> *
> *
> *

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