Regular expressions are a universal tool for matching, validating, and transforming text across programming languages and command-line tools. They can condense complex string operations into compact, ...

If you consider yourself a good cook, you may or may not know how to make a souffle or baklava. But there are certain things you probably do know how to do that form the basis of many recipes. For ...

I was involved in a recent discussion on the "best" way to remove a given parameter from a URL string. The conversation began with using string primitives to split and join the parameter, a method ...

We aren’t sure how we feel about [pemistahl’s] grex program. On the one hand, we applaud a program that can take some input samples and produce a regular expression. On the other hand, it might be ...

Regular expressions are like power tools: They may look scary, but are easy to use once you understand their basic building blocks. Regular expressions -- those scary strings that might as well be ...

Bash has quietly made scripting on Unix systems a lot easier with its own regular expressions. If you're still leaning on grep and sed commands to get your scripts to do what you need from them, maybe ...

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 ...

In programming, a set of symbols used to search for occurrences of text or to search and replace text. The simplest regular expressions are DOS/Windows wildcards; for example, *.html refers to all ...

A more general solution is to use RegEx (regular expressions) to define a pattern that meets your desired requirements. Regular expressions are as complicated as they are powerful. They can be very ...