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Resources for Regular Expressions

By Brett Florio | March 10, 2008

Just wanted to share a few nice regular expression resources for the next time you need to use regex.

RegExhibit: Test regular expressions as you type

Regexhibit Screenshot

If you’re on a Mac and you don’t have RegExhibit yet, you should. It allows you to fine tune your regular expressions live. If you’ve done any work with regex, you might have an idea of how handy that is. Additionally, it will color code your groups, which is incredibly handy for figuring out which pieces are being matched with which groups. Particularly handy when you have multiple and/or nested groups in a very long pattern.

Download RegExhibit on MacUpdate.

If you’re on Windows, fear not. There are a few options (that I haven’t used personally, but I saved you the trouble of Googling it yourself):

Cheat Sheets

Not much to say other than download and print out the following:

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