Question

i am developing an iOS application with uses UIWebView and Javascript. i have a javascript function like this :

function(){
.... 
escape(text);
.....
return text;
}

and in my UIWebView :

NSString *myString = [webView stringByEvaluatingJavascript@"function()"];

this function return to me a string encoded with the javascript function espace, how i can decode this string with objective C ? thanks for your answers

Answer 1

To encode a NSString with percent escapes use stringByAddingPercentEscapesUsingEncoding e.g..

NSString * escapedString = [unescapedString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

To decode an already escaped NSString use stringByReplacingPercentEscapesUsingEncoding e.g..

NSString * unescapedString = [escapedString stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

See Documentation for NSString