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Jul 16, 2012

Author: Hirvesh Posted At: 7/16/2012 Tags: , , , , , ,

XRegExp - A JavaScript Library That Provides Augmented, Extensible Regular Expressions

XRegExp is an open source (MIT License) JavaScript library that provides augmented, extensible regular expressions. You get new syntax, flags, and methods beyond what browsers support natively. XRegExp is also a regex utility belt with tools to make your client-side grepping simpler and more powerful, while freeing you from worrying about pesky cross-browser inconsistencies and the dubious lastIndex property.

XRegExp is fully compliant with the regular expression flavor specified in ES3 and ES5. It works with Internet Explorer 5.5+, Firefox 1.5+, Safari 3+, Chrome, and Opera 9.5+. You can also use it on the server with Node.js.


  • Adds new regex and replacement text syntax, including comprehensive support for named capture.
  • Adds new regex flags: s, to make dot match all characters; x, for free-spacing and line comments; and n, for explicit capture mode.
  • Provides an extensive and powerful suite of functions that make complex regex processing simpler.
  • Fixes or helps you avoid the most commonly encountered cross-browser inconsistencies in regex behavior and syntax.
  • Supports addons that add new XRegExp syntax, flags, and methods. Offical addons support Unicode, recursive matching, grammatical patterns, and more.

Requirements: None
License: MIT License

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