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NSURLに日本語を含める

Last updated at Posted at 2012-04-19

NSURLに日本語を含めるには

NSURL* url = [NSURL URLWithString:
                     [@"日本語含む" stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];

stringByAddingPercentEscapesUsingEncodingは、エスケープをあまりしてくれないようで、
URIEncodeを確実に行う場合は、CFURLCreateStringByAddingPercentEscapesを使うのが定石になっているようです。

NSString* escapedUrl
= (NSString*) CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,
                                                      (CFStringRef)str,
                                                      NULL,
                                                      (CFStringRef)@"!*'();:@&=+$,/?%#[]",
                                                      kCFStringEncodingUTF8);

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