非常好用的iOS正则表达式替换字符串包含的域名

-(NSString*)replaceDomain:(NSString*)str{
    NSMutableString *tempString = [NSMutableString stringWithString:str];
    
    NSError *error;

    NSString *regulaStr = @"((http[s]{0,1}|ftp)://[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>]*)?)|(www.[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>]*)?)";

    NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:regulaStr
                                                                           options:NSRegularExpressionCaseInsensitive
                                                                             error:&error];
    NSArray *arrayOfAllMatches = [regex matchesInString:tempString options:0 range:NSMakeRange(0, [tempString length])];
    
    NSString *substringForMatch = [NSString string];
    for (NSTextCheckingResult *match in arrayOfAllMatches)
    {
        substringForMatch = [tempString substringWithRange:match.range];
        NSLog(@"substringForMatch: %@",substringForMatch);
    }
    [tempString replaceOccurrencesOfString:substringForMatch withString:@"yourdomain.cOm" options:NSBackwardsSearch range:NSMakeRange(0, [tempString length])];
    
    return tempString;
}

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