Once you get the hang of regular expressions, you'll find them invaluable. The trick is to start small - I'll show you how.

The REGEX functions are available for people using ... digit number representing the product's material, Three uppercase ...

Regex is a fantastic tool if you know how to use it. Sadly, it's not the easiest thing in the world to interpret. With the proper expression, though, you can automate whatever you want. Regex is ...

each clue is a regular expression (or a ‘regex’). To complete the puzzle, find the letter matching both the horizontal and vertical regex for each square. The Internet has many regex resources ...