只在本地跑过，不确保一定对

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>

#define setbit(value,bit) (value = value |(1<<bit))

int main(void)
{
    char buf[201];
    char out[201];
    int i = 0;
    int top = 0;
    int len = 0;
    bool bout = false;
    int status=0;

    while(1)
    {
        top = 0;
        status = 0x00;
        bout = false;
        memset(buf,'\0',sizeof(buf));

        gets(buf);

        len = strlen(buf);//不包含最后结束符\0

        for(i=0; i<len; i++)
        {
            if(buf[i] != '<')
            {
                out[top] = buf[i];
                top++;
            }
            else
            {
                top--;//消掉栈顶
            }
        }

        out[top] = '\0';
        
        if(top>=8)
        {
            setbit(status,0);
            for(i=0; i<top; i++)
            {
                if(out[i]>= 'A' && out[i]<='Z')
                {
                    setbit(status,1);
                    printf("bit1\n");
                }
                else if(out[i]>= 'a' && out[i]<='z')
                {
                    setbit(status,2);
                    printf("bit2\n");
                }
                else if(out[i]>= '0' && out[i]<='9')
                {
                    setbit(status,3);
                    printf("bit3\n");
                }
                else if(out[i] > ' ' )//大于空格后面的字符都是特殊字符
                {
                    setbit(status,4);
                    printf("bit4\n");
                }
            }
        }
        else
        {
            bout = false;
        }

        if((status & 0x1f) == 0x1f)
        {
            bout = true;
        }
        printf("%s,%d 0x%x\n",out,bout,status);
    }
}