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//
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// modification, are permitted provided that the following conditions are
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//
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// notice, this list of conditions and the following disclaimer.
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// in the documentation and/or other materials provided with the
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#include "encoding_util.h"

#include <Availability.h>
#include <AvailabilityMacros.h>
#import <Foundation/Foundation.h>

NSString* PercentEncodeNSString(NSString* key) {
#if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && defined(__IPHONE_9_0) && \
     __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_9_0) ||                  \
    (defined(MAC_OS_X_VERSION_MIN_REQUIRED) &&                             \
     defined(MAC_OS_X_VERSION_10_11) &&                                    \
     MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_11)
  return [key stringByAddingPercentEncodingWithAllowedCharacters:
                  [NSCharacterSet URLQueryAllowedCharacterSet]];
#else
  return [key stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
#endif
}