UnicodeWidth.h

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#ifndef UNICODEWIDTH_H
#define UNICODEWIDTH_H
 
#include <cstdint>
 
 
 
class UnicodeWidth {
public:
    enum class Type {
        Unknown,
        Control,
        Neutral,
        Narrow,
        Half,
        Full,
        Wide,
        Ambigous,
    };
private:
    struct Range {
        uint32_t lo;
        uint32_t hi;
        Type type;
    };
public:
    UnicodeWidth() = delete;
    static Type type(uint32_t c);
    static int width(Type t)
    {
        switch (t) {
        case Type::Neutral:
        case Type::Narrow:
        case Type::Half:
            return 1;
        case Type::Full:
        case Type::Wide:
        case Type::Ambigous:
            return 2;
        }
        return 0;
    }
};
 
#endif // UNICODEWIDTH_H