Using REX

Faiz · Post by **Faiz** » Mon Apr 16, 2001 6:13 pm

Hi,
I want to grab everything which falls between
First(' and '). This means, if there is First('abcd') and First('xyz'), then I want to grab the text abcd and xyz. Is it possible to do with rex? I can have many First('124') on the document. All i need is the text between (' and ').
Thanx.

bart · Post by **bart** » Mon Apr 16, 2001 6:51 pm

If I understand you correctly, then you can search for the middle part and then check for the ends like this:

begin=!begin+>>wanted=!end+end=

Faiz · Post by **Faiz** » Mon Apr 16, 2001 7:18 pm

I have to index some pages which are dynamically generated from Lotus Notes database (called quickplace). When I do a view source, I see that the text displayed on the page is actually written in Javascript. Now, the crawler is unable to grab the text as they are written to the browser from Javascript. But they follow a certain pattern. So, what I am trying to do, is grab the text from the Javascript variables. An example of what the source looks like is,

<script>DisplayFirstColInfo('Six Sigma');ge ( '' );</script></A></td><td class=h-foldercompact-text valign=top>amy sombut</td> <td class=h-foldercompact-text valign=top>02/14/2001</td> </tr><script>gh('Several slides providing an overview of Six Sigma; process maps of how to incorporate Six Sigma tools into DMAIC; sample project.\n ',3,1,0,0,0, 1)</script><script>gb(0, 3)</script><tr class=h-folderItem-bg valign=top><script>WriteResponseBar(0,0)</script><td class=h-folderitem-text valign=top><br></td><td class=h-folderitem-text valign=top><script>document.write (GenerateQPObjURLAnchorTag("h_D7BE94FAB94220FB852569F3004C607D", "F42B6E7B6B285ECE852569F3004CC722", "", ""));</script><script>DisplayFirstColInfo('The Methodology Outlined');ge ( '' );</script></A></td><td class=h-foldercompact-text valign=top>amy sombut</td> <td class=h-foldercompact-text valign=top>02/14/2001</td> </tr><script>gh('\n\nThis is still a work-in-process, however, it should serve as a guide when working with IT professionals and scoping out projects.\n\nhttp://webd01.corporate.ge.com/projectplan/dev_meth.html',3,1,0,0,0, 1)</script>

In the above example, I want the text between DisplayFirstColInfo(' and '). In the first line, the text i want will be 'Six Sigma' and one more after that, 'The Methodology Outlined' (which is dynamically generated). Is it possible to get it using rex or something? How can I give the start limiter and end limiter? Or shall I have to write an awk script to find out?
I hope I am able to make it clear this time.

Thanx,

Post by **John** » Mon Apr 16, 2001 7:54 pm

In that example you could follow the example above and do:

<rex ">>DisplayFirstCollInfo('\P=!')+" $Html>

Faiz · Post by **Faiz** » Tue Apr 17, 2001 9:35 am

Thanx a lot. But, I am just getting the first occurence of the delimiters. How can I get all the occurences of those delimiters in the page?

Regards,

bart · Post by **bart** » Tue Apr 17, 2001 10:23 am

You have to loop through the rex matches. Try this

<capture>
<rex ">>DisplayFirstCollInfo('\P=!')+" $Html>
<loop $ret>
$ret<fmt "\n">
</loop>
</capture>
<$text=$ret>

Post by **mark** » Tue Apr 17, 2001 10:23 am

Rex returns a list of all answers, you need to <loop> over them to see them all. Or <sum> them into one string.

Faiz · Post by **Faiz** » Tue Apr 17, 2001 10:29 am

cool. thanx. i'm getting desired results.

Faiz · Post by **Faiz** » Tue Jan 22, 2002 5:18 pm

Is something wrong with the REX, 'cause even after looping, I am just getting the last occurence.

Post by **mark** » Tue Jan 22, 2002 5:52 pm

REX is fine. Please elaborate on what you're doing and what you're expecting vs. what you're getting and how you're determining what you're getting.