Solved

trying to get text between certain words

Posted on 2013-02-06
6
217 Views
Last Modified: 2013-02-08
The text below looks messy but thats how we get files sent to us sometimes.
I want to retrieve all text between "JOIN" and "="

sample text....

SELECT
*
  FROM mytable ppst
       LEFT OUTER JOIN mytable2 pps
                ON ppst.id = pps.id
       LEFT OUTER JOIN mytable3 ps                ON ps.id = pps.p_id
       LEFT OUTER JOIN test p                                  ON p.id = pps.prod_id                        

                                          -- make join inner when data in product
       LEFT OUTER JOIN product p2                            ON p2.id = ppst.to_product_id                                

                              -- make join inner when data in product
       LEFT OUTER JOIN filer f                                  

ON f.id = ppst.did
-- WHERE ps.published_by IS NOT NULL


so - if the regular expression works the it should return
##############################################
mytable2 pps
                ON ppst.id
mytable3 ps                ON ps.id
test p                                  ON p.id
product p2                            ON p2.id
filer f                                  

ON f.id
##############################################
ideally I would like ..
mytable2 pps ON ppst.id
mytable3 ps ON ps.id
test p ON p.id
product p2 ON p2.id
filer f ON f.id

I'm trying this expression but its not working

if record =~/join(.|\n\r\f)*=/i
            puts record
0
Comment
Question by:PHIL Sawyer
  • 4
  • 2
6 Comments
 
LVL 35

Expert Comment

by:Terry Woods
ID: 38861370
Match the text you want with this pattern (using ignore case and singleline modifiers):
(?<=join).*?(?==)
then to remove the surplus spaces substitute pattern
\s{2,}
with a single space.

If you actually have the comments (starting with --) in the text, then you may need to remove those prior to the above.

I'm not a Ruby programmer, by the way; my specialty is regular expressions. Note also there is a Regular Expressions topic with other experts who contribute...
0
 

Author Comment

by:PHIL Sawyer
ID: 38863144
if record =~/(?<=join).*?(?==)/i then

the above misses the 2 lines
 LEFT OUTER JOIN mytable2 pps
                ON ppst.id = pps.id

and it returns the whole line and not the text between join and =

Regards
0
 

Author Comment

by:PHIL Sawyer
ID: 38863468
just to correct my above posting ...
it does capture text between "join and =" and only returns data between those variables but does not return the first 2 lines - must be to do with = is on the next line

Regards
0
Complete VMware vSphere® ESX(i) & Hyper-V Backup

Capture your entire system, including the host, with patented disk imaging integrated with VMware VADP / Microsoft VSS and RCT. RTOs is as low as 15 seconds with Acronis Active Restore™. You can enjoy unlimited P2V/V2V migrations from any source (even from a different hypervisor)

 
LVL 35

Accepted Solution

by:
Terry Woods earned 500 total points
ID: 38865622
Yes, you'll need the singleline modifier. Like this, I believe:

 if record =~/(?<=join).*?(?==)/is then
0
 

Author Comment

by:PHIL Sawyer
ID: 38867959
Thanks
0
 

Author Closing Comment

by:PHIL Sawyer
ID: 38867960
Thanks
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Rails 3.0 Routing 3 623
How to use Rhodes without Rhosync or RhoConnect? 2 667
return captures in array 5 258
Grails dropdown results from <g:select> 4 1,707
I recently rediscovered rails when I needed a holiday project and decided to build a management dashboard for the company where I work.  With it being a project done in my free time, I could focus my time on learning the basics rather than trying to…
In Ruby, Call or invoke a API DLL library is easily via Win32API class, win32-api gem or other gems. For general DLL API call, there are quite a few references, some good tips list below: http://www.rubytips.org/2008/05/13/accessing-windows-api-fro…
Along with being a a promotional video for my three-day Annielytics Dashboard Seminor, this Micro Tutorial is an intro to Google Analytics API data.
Although Jacob Bernoulli (1654-1705) has been credited as the creator of "Binomial Distribution Table", Gottfried Leibniz (1646-1716) did his dissertation on the subject in 1666; Leibniz you may recall is the co-inventor of "Calculus" and beat Isaac…

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question