Common examples of regular expressions determine for example if a given string is an email address or a phone number, or they can be used to verify if a password fulfills a certain complexity.

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 ...

How to use the regular expression functions provided by the ‘re’ library to match, search, and replace text in your Python programs.

These are the formal rules for forming basic UNIX regular expressions. For some simple examples, skip to Simple Examples. The rules come from the Solaris 7 regexp(5) manual page. The I2A2 reflector ...

Regular expressions — the things you feed to programs like grep — are a bit like riding a bike. It seems impossible until you learn to do it, and then it’s easy. Part of their bad reputation ...

For this work with regular expressions, we will start with a browser-based tool. Below is a list of file names. We want to write a regular expression that captures parts of each string. Copy the text ...

A simple cheat sheet of some common regular expressions used in SEO. Offers tips for htaccess, ScreamingFrog, and Google Analytics.

This article demonstrates some useful ways to use regular expressions with PPC, by adding new dimensions to our typical Account/Campaign/AdGroup hierarchy of data. Another use for regular ...

Peter's beginning a self-improvement course in using regular expressions, at least when doing searches in Visual Studio. As part of achieving that goal, he's decided that the Find Files option is his ...