Regular expressions

Regular expressions (regex or regexp) are a more powerful system than globing patterns to look for matches of a particular pattern. They are extremely useful and implemented in most programming and scripting languages.

We do not have time to cover regexp in this course, but there is an excellent site that covers them in detail in a clear fashion.

There are many sites such as this that allow you to test your regexps.

If you find the syntax daunting, don’t despair: any LLM (large language model) will tell you what syntax to use. We offered a webinar on this in 2023 with an early version of ChatGPT: