L[telnet negotiation] 这层处理汉字问题
|
L[event driven state machine] 这层就不用分析字符编码了


实现：
class Char {
public:
    bool ascii;
    char ch0, ch1;

    Char();
    Char(char);
    Char(char, char);
    int size();
    int length(); // 2 or 1
    char* c_str();
};
定义字符，

定义事件:
class Event {
public:
    int type;
    Char key;
    Event() : type(EV_NOP){};
    Event(int t) : type(t){};
    Event(int t, Char k) : type(t), key(k){};
};

demo:
if (event.type == EV_INPUT) {
    if (event.key.ascii) {
    }
    else {
    }
}
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