Function is_space_codepoint

common/console.cpp:577–579

    }

    static bool is_space_codepoint(char32_t cp) {
        return std::iswspace(static_cast<wint_t>(cp)) != 0;
    }

    static void move_word_left(size_t & char_pos, size_t & byte_pos, const std::vector<int> & widths, const std::string & line) {
        if (char_pos == 0) {