Regular Expression (RegEx) Resources

Alexander Turcic · 03-10-2004, 05:03 PM

Steve Mansour has compiled a nice reference for Perl Regular Expressions.

If you find other good reference sources, post them here.

Alexander Turcic · 03-10-2004, 05:28 PM

Another good RegEx resource is the book O'Reilly's Mastering Regular Expressions (http://www.oreilly.com/catalog/regex/ and http://www.oreilly.com/catalog/regex2/).

ignatz · 03-11-2004, 10:05 PM

The following comes straight out of the Sitescooper docs and has several more good Perl resources in addition to the Tao one:

Quote:

For more information on regular expressions in general, and the Perl variety that sitescooper uses, I recommend checking out some of these pages. First of all, Steve Litt at Troubleshooters.com has put together a great guide here: Steve Litt's PERLs of Wisdom: PERL Regular Expressions. Highly recommended. Next up, there's A Tao Of Regular Expressions, it's quite good. Also, weblogger Jorn Barger has written up a good page of to regexps at Regular Expressions Resources on the Web. The "Perl" section is most relevant to sitescooper's regexp format. The About.com guide to Perl has a great tutorial on them too.

Alexander Turcic · 04-01-2004, 03:29 PM

Another great RegEx resource, especially for beginners:

http://www.regular-expressions.info/tutorial.html

Alexander Turcic · 04-03-2004, 03:27 AM

A great tool to learn RegEx is The RegEx Coach.

The Regex Coach is a graphical application for Linux and Windows which can be used to experiment with (Perl-compatible) regular expressions interactively. It has the following features:

- It shows whether a regular expression matches a particular target string.
- It can also show which parts of the target string correspond to captured register groups or to arbitrary parts of the regular expression.
- It can "walk" through the target string one match at a time.
- It can simulate Perl's split and s/// (substitution) operators.
- It tries to describe the regular expression in plain English.
- It can show a graphical representation of the regular expression's parse tree.
- It can single-step through the matching process as performed by the regex engine.
- Everything happens in "real time", i.e. as soon as you make a change somewhere in the application all other parts are instantly updated.

Best of all, it's free!!

Alexander Turcic · 04-03-2004, 03:35 AM

Another great resource is the Regular Expression Library, which has hundreds of patterns figured out for you already. Good use if you don't want to reinvent the wheel

Alexander Turcic · 06-01-2004, 04:18 PM

Learning Perl the Hard Way is a free ebook available as Adobe PDF. Chapter 2 focuses on Regular Expression. Good read!

03-10-2004, 05:03 PM	#1
Alexander Turcic Fully Converged Posts: 18,163 Karma: 14021202 Join Date: Oct 2002 Location: Switzerland Device: Too many to count here.	Regular Expression (RegEx) Resources Steve Mansour has compiled a nice reference for Perl Regular Expressions. If you find other good reference sources, post them here.

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03-10-2004, 05:28 PM	#2
Alexander Turcic Fully Converged Posts: 18,163 Karma: 14021202 Join Date: Oct 2002 Location: Switzerland Device: Too many to count here.	Another good RegEx resource is the book O'Reilly's Mastering Regular Expressions (http://www.oreilly.com/catalog/regex/ and http://www.oreilly.com/catalog/regex2/).

04-01-2004, 03:29 PM	#4
Alexander Turcic Fully Converged Posts: 18,163 Karma: 14021202 Join Date: Oct 2002 Location: Switzerland Device: Too many to count here.	Another great RegEx resource, especially for beginners: http://www.regular-expressions.info/tutorial.html

04-03-2004, 03:27 AM	#5
Alexander Turcic Fully Converged Posts: 18,163 Karma: 14021202 Join Date: Oct 2002 Location: Switzerland Device: Too many to count here.	A great tool to learn RegEx is The RegEx Coach. The Regex Coach is a graphical application for Linux and Windows which can be used to experiment with (Perl-compatible) regular expressions interactively. It has the following features: - It shows whether a regular expression matches a particular target string. - It can also show which parts of the target string correspond to captured register groups or to arbitrary parts of the regular expression. - It can "walk" through the target string one match at a time. - It can simulate Perl's split and s/// (substitution) operators. - It tries to describe the regular expression in plain English. - It can show a graphical representation of the regular expression's parse tree. - It can single-step through the matching process as performed by the regex engine. - Everything happens in "real time", i.e. as soon as you make a change somewhere in the application all other parts are instantly updated. Best of all, it's free!!

04-03-2004, 03:35 AM	#6
Alexander Turcic Fully Converged Posts: 18,163 Karma: 14021202 Join Date: Oct 2002 Location: Switzerland Device: Too many to count here.	Another great resource is the Regular Expression Library, which has hundreds of patterns figured out for you already. Good use if you don't want to reinvent the wheel

06-01-2004, 04:18 PM	#7
Alexander Turcic Fully Converged Posts: 18,163 Karma: 14021202 Join Date: Oct 2002 Location: Switzerland Device: Too many to count here.	Learning Perl the Hard Way is a free ebook available as Adobe PDF. Chapter 2 focuses on Regular Expression. Good read!