Now that we know how to work with regular expressions and the different methods that are available to interact with, let’s spend some time building regular expressions to match the patterns we want.

A long time ago, I wrote a utility for an employer that allowed testers to perform verification on data coming out of a hardware box using a regular expression language. It allowed users to ...

Regular expressions 101. Let’s start simple. Suppose you want to search for a string with the word “cat” in it; your regular expression would simply be “cat”.

You can use a special group of functions and CALL routines to match or change data according to a specific pattern that you specify. By using these functions and CALL routines, you can determine ...

Still, for $3, Patterns is a helpful addition to the toolkit of anyone who builds regular expressions with regularity. If you work with text, you owe it to yourself to learn regular expressions ...

I once asked a software developer at work how many times we called fork() in our code. I’ll admit, it was a very large project, but I expected the answer to be — at most — two dig… ...

Gruber recently improved the regex pattern again, and that seemed like a good opportunity to briefly detail how I’ve integrated his pattern in my workflows. The key to match URLs and provide ...

Pattern Matching Using Regular Expression (RX) Functions and CALL Routines. You can use a special group of functions and CALL routines to match or change data according to a specific pattern that you ...