Remove accents from words using Objective-C

RemoveAccents.m

#import <Foundation/Foundation.h>

int main(int argc, char *argv[]) {
	@autoreleasepool {
		NSString *start = @"CéuÁbÊrtação";
		NSData *stringAsciiEncoded = [start dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
		NSString *simpleString = [[NSString alloc] initWithData:asciiEncoded encoding:NSASCIIStringEncoding];
		
		NSLog(@"Valor: %@", simpleString);
	}
}

RemoveAccents.swift

import Foundation

extension String {
  
  var sanitize: String? {
    guard let data = data(using: .ascii, allowLossyConversion: true) else { return nil }
    let value = String(data: data, encoding: .ascii)
    
    return value
  }
}

if let value = "CéuÁbÊrtação".sanitize {
  print(value)
}