Regular Expression Tutorial - Learn How to Use Regular Expressions
July 26th, 2005Man, I can tell you I’ve been here a few times: Regular Expression Tutorial - Learn How to Use Regular Expressions
From their site:
“In this tutorial, I will teach you all you need to know to be able to craft powerful time-saving regular expressions. I will start with the most basic concepts, so that you can follow this tutorial even if you know nothing at all about regular expressions yet.”
“But I will not stop there. I will also explain how a regular expression engine works on the inside, and alert you at the consequences. This will help you to understand quickly why a particular regex does not do what you initially expected. It will save you lots of guesswork and head scratching when you need to write more complex regexes.”
Very helpful, and very worthwhile if you are getting into any language that has regexp support, but also to let you know what you are missing out on with applications that have regular find and replace dialogs such as Word or Pages.