?
Solved

Best way to learn regular expressions

Posted on 2012-03-22
8
Medium Priority
?
418 Views
Last Modified: 2012-08-14
What is the best way to learn regular expressions?
Should I use any software?
Thank you.
0
Comment
Question by:skiabox
[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
  • 2
  • 2
  • 2
  • +1
8 Comments
 

Expert Comment

by:initdotdan
ID: 37753681
Use any *nix box. Use vi on your *nix box. You can study up on advanced file processing on vi.
0
 

Author Comment

by:skiabox
ID: 37753745
I have a macbook pro , so I can use the bash shell.
0
 
LVL 75

Expert Comment

by:käµfm³d 👽
ID: 37753821
Practice, practice, practice!   = )

In all seriousness, I started participating here in the regex TA, and most of my knowledge in regex has come from helping others solve their regex quandaries. This gave me many opportunities to practice regex.

You have to be mindful, though, that different languages and different text editors don't always implement the same regex engines or even use the same regex syntax. Just because you understand regex in one language, the text editor you use may use an entirely different syntax. Generally speaking, the theory behind regex is universal. Although different languages/editors may implement different engines, a regex is more or less a state machine. You don't really need to understand all of the gory details of a state machine in order to understand regex, but at times it may help you to understand why a regex is performing a certain behavior.
0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 
LVL 75

Accepted Solution

by:
käµfm³d   👽 earned 600 total points
ID: 37753833
P.S.

I highly recommend the following site for a regex library. It really breaks it down for you what each construct means in regex, and even goes so far as to telly which constructs are supported in which languages.

www.regular-expressions.info
0
 
LVL 41

Assisted Solution

by:HonorGod
HonorGod earned 600 total points
ID: 37753907
And this is "the" book:

Mastering Regular Expressions: http://www.amazon.com/dp/0596528124
0
 

Author Closing Comment

by:skiabox
ID: 37753949
Thank you so much guys!
0
 
LVL 41

Expert Comment

by:HonorGod
ID: 37754165
Thanks for the assist, and the points.
Good luck & have a great day.
0
 

Expert Comment

by:initdotdan
ID: 37757466
You can use the Terminal and vi on your Macbook pro.
0

Featured Post

Get real performance insights from real users

Key features:
- Total Pages Views and Load times
- Top Pages Viewed and Load Times
- Real Time Site Page Build Performance
- Users’ Browser and Platform Performance
- Geographic User Breakdown
- And more

Question has a verified solution.

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

Whether you’re a college noob or a soon-to-be pro, these tips are sure to help you in your journey to becoming a programming ninja and stand out from the crowd.
In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
In this fourth video of the Xpdf series, we discuss and demonstrate the PDFinfo utility, which retrieves the contents of a PDF's Info Dictionary, as well as some other information, including the page count. We show how to isolate the page count in a…
Six Sigma Control Plans
Suggested Courses

770 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