Is there an Objective C equivalent of the JavaScript method encode()?

NSString *searchString = @"Lyngbø";
NSLog("%@",[searchString stringByAddingPercentEscapeUsingEncoding:NSUTF8StringEncoding]);

This gives me : Lyng%C3%B8

<script type="text/javascr开发者_运维知识库ipt">
document.write(escape("Lyngbø"));
</script> 

This gives me : Lyngb%F8

The web search engine i am developing against doesnt understand the Objectiv C's way of encoding the string, and returns nothing when searching for words that contains either æ. ø or å

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Charset difference. Instead of NSUTF8StringEncoding, use NSISOLatin1StringEncoding.