//.h
//encode
+ (NSString*)encodeString:(NSString*)unencodedString;
//decode
+ (NSString *)decodeString:(NSString*)encodedString;
//.m
//encode
+ (NSString*)encodeString:(NSString*)unencodedString {
// CharactersToBeEscaped = @":/?&=;+!@#$()~',*";
// CharactersToLeaveUnescaped = @"[].";
NSString *encodedString = (NSString *)
CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,(CFStringRef)unencodedString,NULL,(CFStringRef)@"!*'();:@&=+$,/?%#[]",kCFStringEncodingUTF8));
return encodedString;
}
//urldecode
+ (NSString *)decodeString:(NSString*)encodedString {
//NSString *decodedString = [encodedString stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding ];
NSString *decodedString = (__bridge_transfer NSString *)CFURLCreateStringByReplacingPercentEscapesUsingEncoding(NULL,(__bridge CFStringRef)encodedString,CFSTR(""),CFStringConvertNSStringEncodingToEncoding(NSUTF8StringEncoding));
return decodedString;
}
