Regular Expression (Regex)

A Regular Expression or regex is a sequence of characters that specifies a text pattern that can be searched for within other, larger texts, for the purpose of, e.g., replacing the text pattern with some other text.

Within TEv2, we use the JavaScript flavor (ECMAScript 2022) as the language to use for regexes.

For details, you may consult the Mozilla user guide, but there are many other resources on the Internet as well.