aspose file tools
The moose likes Ant, Maven and Other Build Tools and the fly likes ant regex? Big Moose Saloon
  Search | Java FAQ | Recent Topics
Register / Login


Win a copy of The Mikado Method this week in the Agile and other Processes forum!
JavaRanch » Java Forums » Engineering » Ant, Maven and Other Build Tools
Reply Bookmark "ant regex?" Watch "ant regex?" New topic
Author

ant regex?

slap shot
Greenhorn

Joined: Feb 21, 2013
Posts: 1
I have a ${curDir} that looks like:

root/folder/projectname/temp/etc

and I want to use a regex to extract the projectname from that, what I currently have is:



only the output is \3 (or $3 if I try to use $) - what am I doing wrong?

Jeanne Boyarsky
internet detective
Marshal

Joined: May 26, 2003
Posts: 26184
    
  66

I see two issues. First, you don't have any sets of parenthesis in your regular expression which means \1, \2 and \3 are not set to anything. Which means they print as string literals. You know the reg exp is matching something since it doesn't return Invalid.


This example prints "folder". "0" is a special match that means the whole match regardless of parens.

The second issue is that you aren't matching projectname. That's easy enough to solve. Just add to the regular expression. And add parens so it is the first match.



And this prints projectname.


[Blog] [JavaRanch FAQ] [How To Ask Questions The Smart Way] [Book Promos]
Blogging on Certs: SCEA Part 1, Part 2 & 3, Core Spring 3, OCAJP, OCPJP beta, TOGAF part 1 and part 2
Jeanne Boyarsky
internet detective
Marshal

Joined: May 26, 2003
Posts: 26184
    
  66

Also, please see your PMs about an important administrative matter.
 
I agree. Here's the link: http://zeroturnaround.com/jrebel - it saves me about five hours per week
 
subject: ant regex?
 
Similar Threads
trying to call a object from a different class.
sourcepath and classpath
help creating java Object (data type)
Using External style sheet to include background image in JSP
ScheduledTimerTask - Period is not consistent