Re: Need help with regular expression to parse URLs

From:

Knute Johnson <nospam@rabbitbrush.frazmtn.com>

Newsgroups:

comp.lang.java.programmer

Date:

Mon, 10 Aug 2009 12:23:31 -0700

Message-ID:

<4a8073b3$0$23066$b9f67a60@news.newsdemon.com>

Neil wrote:

There is no way (that I know of) to get two groups without specifying
two sets of parentheses in the regex.

If I change my regex to be:
^http://jammconsulting.com/jamm/[^/]+/[^/]+/(([^/]+)/([^/]+))*\
\.html?

I get this result:

Group 1: s/Backpacks
Group 2: s
Group 3: Backpacks

Which is splitting up the subexpression but the outer group is wrong
in the first place.

Any ideas?

--
Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com
Will your e-commerce site go offline if you have
a DB server failure, fiber cut, flood, fire, or other disaster?
If so, ask about our geographically redundant database system.

import java.util.regex.*;

public class test {
     public static void main(String[] args) {
         String str =
// "http://jamconsulting.com/jamm/page/products/Brand/Abc.html";

"http://jammconsulting.com/jamm/page/products/Stuff/Bags-%26-Luggage/Bags-%26-Totes/Backpacks.html";
         Pattern p = Pattern.compile("http://.*/(.*/.*)/(.*/.*)\\.html");
         Matcher m = p.matcher(str);
         System.out.println(m.matches());
         System.out.println(m.group(1));
         System.out.println(m.group(2));
     }
}

C:\Documents and Settings\Knute Johnson>java test
true
Stuff/Bags-%26-Luggage
Bags-%26-Totes/Backpacks

--

Knute Johnson
email s/nospam/knute2009/

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