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Quick: If you shout "regular expressions" in a crowd of Linux users, what happens? Answer: Everyone will tell you the right way to use them, and every answer will be different. Regular expressions -- ...

{{figure {url: "img/chapter_picture_9.jpg", alt: "Illustration of a railroad system representing the syntactic structure of regular expressions", chapter: "square ...

regex is a template tag that extends JavaScript regular expressions with features that make them more powerful and dramatically more readable. It returns native RegExp instances that equal or exceed ...

I'm confused by Perl's regex abilities. There seems to be a lot of duplicate flags: ^ and \A both match the beginning of a string. $ and \Z both match the end. It seems redundant and confusing. I'm ...