Joran, current Rhino RegExp processing may be extremely slow. In HtmlUnit we've customized it to use Java based RegExp processing which is far faster. Nevertheless it's not yet good enough to fully replace Rhino RegExp processing due to the differences between Java and JavaScript RegExp syntax (in fact this allows to fix some of current Rhino bugs but contains some regressions). If you're interested, you can pick it from HtmlUnit sources and use it in your Context.
Cheers, Marc. -- Web: http://www.efficient-webtesting.com Blog: http://mguillem.wordpress.com Joran wrote: > Hi, I would like to use Prototype's isJSON() to test for valid JSON > strings before eval'ing them. For strings around 244kb in size, this > is tremendously slow, around 200 seconds, shooting the process' CPU > utilization right up to 97% from 0.1% for the same duration. > > The method looks like this: > > isJSON: function() { > var str = this; > if (str.blank()) return false; > str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, ''); > return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str); > } > > Your help would be much appreciated. Thanks in advance! _______________________________________________ dev-tech-js-engine-rhino mailing list [email protected] https://lists.mozilla.org/listinfo/dev-tech-js-engine-rhino
