Complete your introduction to the Regex API, then find out how regular expressions make quicker work of common tasks like code documentation and lexical analysis.

All but the most casual Linux users no doubt have encountered regular expressions, if only in a cursory manner. Regular expressions are extremely powerful and flexible pattern-matching and -replacing ...

I try to create a class that uses regexp in Java. The function of the class is to get substrings that matches a pattern. In this case I would like to get 2 substrings since it contains 2 links. But I ...

Regular expressions are built into many programming languages and used to match, search, and transform patterns of text in your programs. Get started with Regex.