A regular expression (regex, regexp) is a string-searching algorithm, which you can use for making a search pattern in a sequence of characters or strings. Usually, these patterns are used to find or ...

How to use the regular expression functions provided by the ‘re’ library to match, search, and replace text in your Python programs. Regular expressions, or “regex,” is a system for finding complex ...

Write a Python program to check that a string contains only a certain set of characters (in this case a-z, A-Z and 0-9). Write a Python program that matches a string that has an a followed by zero or ...

Regex Generator is a tool to generate simple regular expressions. The goal is that people with less experience can create regex smoothly. Regex Generator tries to help you create a first version of a ...