mishoo/UglifyJS — pull request #440 by nevir (2012-07-26 02:44:58+00:00)
Title: Support regular expression matches for options.except and the like

This is to support things like `ast_mangle(ast, {except: [/^[A-Z]/]})`

My main motivation is to avoid mangling CoffeeScript-generated constructor functions, since 99% of my code follows that naming convention anyway.