Regex question in Java

rangalo · October 26th, 2006, 06:54 AM

Hi list,

I am rewriting a Perl script in Java.

I am using java.util.regex.Pattern and java.util.regex.Matcher for regex.

My code looks like followig:

Code:

Pattern p = Pattern.compile("^S\\s+\\[(.*?)\\],\\s+C\\s+\\[(.*?)\\]\\[(.*?)\\]\\s+:\\s+\\(R (.+)\\)\\(V (.+)\\)(\\(A .+\\))?\\(U (.+)\\)\\s*\\[level    \\d+)\\].*$"
 
String text="S [Oct 18 17:30:36], C [10/18/06 5:30 PM][hardik] : (R 25891031)(V 1100)(A )(U 1100) [level:7][SelectDisplay] The list ContractList_FilterField : the length is 7"
 
Matcher m = p.matcher(text);
if(m.matches())
  for (int i=1; i<=5; i++)
       LOGGER.debug("grp "+i+ " value "+m.groups(i));

the output looks like this

Code:

    DEBUG - grp 0 value S [Oct 18 17:30:36], C [10/18/06 5:30 PM][hardik] : (R 25891031)(V 1100)(A )(U 1100) [level:7][SelectDisplay] The list ContractList_FilterField : the length is 7
    DEBUG - grp 1 value Oct 18 17:30:36
    DEBUG - grp 2 value 10/18/06 5:30 PM
    DEBUG - grp 3 value hardik
    DEBUG - grp 4 value 25891031
    DEBUG - grp 5 value 1100)(A  // look at this I expect this tobe only 1100

can anybody tell me what is wrong with the regex and what should I change to get 1100 in the 5th group ?

regards,
Hardik

ciderpunx · October 26th, 2006, 08:48 AM

Quote:

quote:
I am rewriting a Perl script in Java.

you have my sympathy ;)

Code:

(U (.+)\\)

The dot in that will match your bracket as well. Try:

Code:

(U (\d+)\\)

--
Don't Stand on your head - you'll get footprints in your hair
http://charlieharvey.org.uk
http://charlieharvey.com

rangalo · October 26th, 2006, 09:26 AM

Hi,

thanks.

That worked ! But I was talking about group 5 so

\\(V (.+)\\) needed to be chaned

and sometimes I also have strings with (V ?) so I have replaced it with

\\(V ([\\d?]+)\\)

and it worked.

Thanks for the idea.

cheers,
Hardik