Function IsPrintable

library/cpp/yson/writer.cpp:31–33

        }

        inline bool IsPrintable(char c) {
            return c >= 32 && c <= 126;
        }

        inline bool IsHexDigit(char c) {
            return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f');