如何在目标c中打印characterSet?

问题描述

我正在使用GNUstep外壳对Objective-C进行编程.我能够将字符串转换为字符集.但是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法.预先感谢.

i'm using GNUstep shell for programming objective-c. I'm able to convert string to a character set. But unable to print the converted character set in the console. Please tell me a way to print it. Thanks in advance.

推荐答案

这将处理unicode中的前65536个字符，这在大多数情况下都适用.我相信unicode可以更高(2 ^ 32吗?)，但这将花费更长的时间记录.

This will do the first 65536 characters in unicode, which will do for most situations. I believe unicode can go much higher (2^32?), but this would take much longer to log.

+ (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，下面是punctuationCharacterSet中20个字符的示例.

There are some quite fun looking results, for example here is a sample of 20 characters from punctuationCharacterSet.

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