Regular expressions might seem arcane, but if you do any kind of software, they are a powerful hacker tool. Obviously, if you are writing software or using tools like grep, awk, sed, Perl, or just ...

In this lesson, you’ll learn how to use RegEx (regular expressions) to work with sets of characters. Unlike the ., which matches any single character , sets enable you to match specific characters and ...

We aren’t sure how we feel about [pemistahl’s] grex program. On the one hand, we applaud a program that can take some input samples and produce a regular expression. On the other hand, it might be ...

Since SharePoint 2010 now supports regular expressions for crawl rules, I wonder if these might be compacted into one rule. It's not a big deal to reenter these as-is, but I'd like to learn regular ...