Solved

Regex to find two strings in either order

Posted on 2004-09-12
2
617 Views
Last Modified: 2012-06-27
I would like to determine if both the strings 'abc' and 'xyz', in either order, occur in $text.  The following works, but I have that feeling that there must be a better way.

 $text =~ m/abc.*xyz|xyz.*abc/

Is there a better way to do this than with alternation?
0
Comment
Question by:rexswain
2 Comments
 
LVL 84

Accepted Solution

by:
ozo earned 250 total points
ID: 12039548
$text =~ /(?=.*abc).*xyz/s;
0
 
LVL 3

Expert Comment

by:CmdrRickHunter
ID: 12040238
how about using logic and two regular expressions? ($text =~ m/abc/ && text =~ m/xyz).  Perhaps more parenthesis are needed.

It may look slower, but remember that simple regular expressions are usually much faster to find than ones with lots of wierd backtracking and long matches.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Email validation in proper way is  very important validation required in any web pages. This code is self explainable except that Regular Expression which I used for pattern matching. I originally published as a thread on my website : http://www…
A year or so back I was asked to have a play with MongoDB; within half an hour I had downloaded (http://www.mongodb.org/downloads),  installed and started the daemon, and had a console window open. After an hour or two of playing at the command …
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …

911 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

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now