Sina Count Word Method

countWord.m

- (int)sinaCountWord:(NSString*)s  
{  
    int i,n=[s length],l=0,a=0,b=0;  
    unichar c;  
    for(i=0;i<n;i++){  
        c=[s characterAtIndex:i];  
        if(isblank(c)){  
            b++;  
        }else if(isascii(c)){  
            a++;  
        }else{  
            l++;  
        }  
    }  
    if(a==0 && l==0) return 0;  
    return l+(int)ceilf((float)(a+b)/2.0);  
}