如何在目标c中打印characterSet？

Question

我正在使用GNUstep shell编程objective-c.我能够将字符串转换为字符集.但无法在控制台中打印转换后的字符集.请告诉我一种打印方式.提前致谢.

Answer 1

这将在unicode中执行前65536个字符,这适用于大多数情况.我相信unicode可以更高(2 ^ 32？),但这需要更长的时间来记录.

+ (void) logCharacterSet:(NSCharacterSet*)characterSet
{
    unichar unicharBuffer[20];
    int index = 0;

    for (unichar uc = 0; uc < (0xFFFF); uc ++)
    {
        if ([characterSet characterIsMember:uc])
        {
            unicharBuffer[index] = uc;

            index ++;

            if (index == 20)
            {
                NSString * characters = [NSString stringWithCharacters:unicharBuffer length:index];
                NSLog(@"%@", characters);

                index = 0;
            }
        }
    }

    if (index != 0)
    {
        NSString * characters = [NSString stringWithCharacters:unicharBuffer length:index];
        NSLog(@"%@", characters);
    }
}

有一些非常有趣的结果,例如这里有20个字符的样本punctuationCharacterSet.

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