Solved

java string split with regular expression

Posted on 2015-02-06
8
114 Views
Last Modified: 2015-02-06
Hi Experts,

Can someone give me a regular expression that would allow me to:

turn this:  ".exe; .bat, .ui.xml."

into this:    "exe bat ui.xml"

In other words, I want to remove leading and trailing '.' characters and the delimiters are commas, spaces and semi-colons....

Thanks a lot!
Mike
0
Comment
Question by:thready
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 3
8 Comments
 
LVL 35

Expert Comment

by:Dan Craciun
ID: 40593843
String resultString = subjectString.replaceAll("[.;,] [.;,]|^[.;,]|[.;,]$", " ");

Open in new window

Then simply delete the spaces at the beginning and end.

HTH,
Dan
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 40593857
into this:    "exe bat ui.xml"
That doesn't look right. The last file extension type is joined to something else
0
 
LVL 1

Author Comment

by:thready
ID: 40594031
That's intentional.  There are files that have double extensions - like .ui.xml files.
0
The Ultimate Checklist to Optimize Your Website

Websites are getting bigger and complicated by the day. Video, images, custom fonts are all great for showcasing your product/service. But the price to pay in terms of reduced page load times and ultimately, decreased sales, can lead to some difficult decisions about what to cut.

 
LVL 1

Author Comment

by:thready
ID: 40594048
Thanks Dan!  That's really close - but it didn't work for this one: "..exe;., .bat, .ui.xml" - which I think is still a valid extension list...  I need to be picky here, sorry.  I'm trying to understand your regex...
0
 
LVL 35

Accepted Solution

by:
Dan Craciun earned 500 total points
ID: 40594205
String resultString = subjectString.replaceAll("(?m)^[.;,]+|[.;,]+ [.;,]+|[.;,]+$", " ");

Open in new window

You did not specify on the OP that there can be multiple consecutive .,;

The pattern is quite simple:
1. search for some .;, at the beginning of the string
or (| means OR)
2. search for some ,;. plus space plus some ,;. inside the string
or
3. search for some .;, at the end of the string.

If found, replace with a single space.
0
 
LVL 1

Author Closing Comment

by:thready
ID: 40594398
Very awesome.  Thanks a lot!
0
 
LVL 35

Expert Comment

by:Dan Craciun
ID: 40594403
You're welcome.
Glad I could help!
0
 
LVL 35

Expert Comment

by:Dan Craciun
ID: 40594416
Update: if you use this
String resultString = subjectString.replaceAll("(?m)^[.;,]+|[.;,]* [.;,]*|[.;,]+$", " ");

Open in new window

it will also work for
.bat. ui.xml..
.bat .ui.xml..
0

Featured Post

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

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

Introduction This article is the first of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article explains our test automation goals. Then rationale is given for the tools we use to a…
In this post we will learn how to make Android Gesture Tutorial and give different functionality whenever a user Touch or Scroll android screen.
Viewers learn about the “for” loop and how it works in Java. By comparing it to the while loop learned before, viewers can make the transition easily. You will learn about the formatting of the for loop as we write a program that prints even numbers…
This video teaches viewers about errors in exception handling.

718 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