Over the last few years, I've occasionally commented on JavaScript's RegExp API, syntax, and behavior on the ES-Discuss mailing list. Recently, JavaScript inventor Brendan Eich suggested that, in order to get more discussion going, I write up a list of regex changes to consider for future ECMAScript standards (or as he humorously put it, have [...]

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If you're not already a subscriber, check out Regex Guru, an excellent blog on all things regex by Jan Goyvaerts (coauthor of Regular Expressions Cookbook and creator of regular-expressions.info, RegexBuddy, PowerGREP, and RegexMagic). Now's a better time than ever to check out the site since he's giving away five copies of Regular Expressions Cookbook; just [...]

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Following are a couple recipes I wrote for Regular Expressions Cookbook, composing a fairly comprehensive guide to validating and formatting North American and international phone numbers using regular expressions. The regexes in these recipes are all pretty straightforward, but hopefully this gives an example of the depth you can expect from the book. For more than [...]

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Update (2010-02-25): This contest is now closed. Last year, Yahoo! engineer and all-around JavaScript badass Nicholas Zakas asked if I was interested in writing a chapter for a new book on JavaScript performance that he was working on. I agreed, and that book, High Performance JavaScript, is now available for preorder at Amazon and other fine [...]

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After stalling for nearly a year, I've finally released XRegExp 1.0, the next generation of my JavaScript regular expression library. Although it doesn't add support for lookbehind (as I've previously suggested) due to what would amount to significant inherent limitations, it fixes a couple bugs, corrects even more cross-browser regex inconsistencies, and adds a suite [...]

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