If you've ever wished Excel could handle text patterns the way Python or JavaScript does, these functions deliver exactly ...

Like riding a bike, knowledge of regular expressions will stay with you forever, allowing you to manipulate text quickly and easily. In this part of the series, Ondrej focuses in on groups, ...

I'm wearing my regex dunce cap again. I want to return a positive match if I find "this" in a string, but not if I find "this" and also "that" in the string. Put another way: I want to return a ...

If you work with strings in your Python scripts and you're writing obscure logic to process them, then you need to look into ...

When working with regular expressions in a shell script the norm is to use grep or sed or some other external command/program. Since version 3 of bash (released in 2004) there is another option: ...

This article explains what regex (or regular expressions) is and how to get started using it with web crawlers, plus some interesting real-world use cases. One technology skill that is too-often ...