Function is_space

src/Chain/libraries/glua/glua_tokenparser.cpp:134–137

        }

        static inline bool is_space(int c)
        {
            return c == '\n' || c == '\r' || c == ' ' || c == '\f' || c == '\t' || c == '\v';
        }

        int GluaTokenParser::_current_char(std::string &code)
        {