How Regexes WorkMark-Jason Dominus Copyright © 1998 The Perl Journal. Reprinted with permission. This isn't an article about how to use regexes; you've probably seen plenty of those already. It's about how you would write a regex package from scratch, in a language like C that doesn't already have regexes. I'll demonstrate a new module, Regex.pm, which implements regexes from nothing, in Perl. This will give you
