Excel has formulas for just about everything—XMATCH for finding data, IF for logic, and SUMIF for conditional totals. But you've probably hit a wall if you've ever needed to extract specific patterns ...

Imagine you need to extract a simple number from a complex string, such as a product code with region-specific abbreviations or a column of phone numbers stored in four different formats. To make ...

Microsoft Excel has recently introduced three powerful new functions that leverage regular expressions (REGEX) to enhance text manipulation capabilities. These functions simplify tasks that were ...

When working with text or CSV data in Python, you may find yourself wanting to "extract only email addresses," "verify the ...

There are two types of people in the world: those who have no idea what a regular expression is, and those who not only know what they are but can compose them on the fly and tend to use them in ...

Regular expressions have been part of the programmer’s toolkit for a long time, with their creation by Stephen Cole King in 1951. Their ability to match word patterns make them a powerful tool for ...

Regular expressions come in handy for all varieties of text processing, but are often misunderstood–even by veteran developers. Here’s a look at intermediate-level regular expressions and what they ...

Some say a set of regular expressions comprises a domain-specific language, or DSL; essentially, a mini-programming language. A full-blown programming language like Java or Python can do many things, ...

Imagine you are looking for a name in a telephone directory, but you can't remember its exact spelling. You can spend ages searching through all the possible combinations, unless you have a tool that ...

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 ...