How nice are the new URLQueryAllowedCharacterSet and stringByAddingPercentEncodingWithAllowedCharacters APIs? Very nice indeed. They enable you to instantly prepare queries by applying percent escaping to URL query components.
public func askWolfram(s : String) { let endpoint = "http://m.wolframalpha.com/input/?" if let item = ("i="+s).stringByAddingPercentEncodingWithAllowedCharacters( NSCharacterSet.URLQueryAllowedCharacterSet()) { let query = endpoint+item let request = NSURLRequest(URL: NSURL(string:query)!) wkview.loadRequest(request) } }
Other new URL-specific character sets include support for legal URL fragments (the bit after the # symbol), host components, user names, passwords, and paths.
I think it’s finally time for me to put away my CFURLCreateStringByAddingPercentEscapes workarounds.
Comments are closed.