91             let command_bytes = self.printer.buf.borrow().clone();  in exec()  localVariable
93             if !command_bytes.is_empty()  in exec()
94                 && !command_bytes.starts_with(&[b' '])  in exec()
95                 && command_bytes  in exec()
104                     .push(Rc::new(RefCell::new(command_bytes.clone())));  in exec()
105                 self.write_commands(&command_bytes);  in exec()
108             if !command_bytes.iter().all(|&byte| byte == b' ') {  in exec()
109                 self.exec_commands_in_line(&command_bytes);  in exec()
114     fn exec_commands_in_line(&mut self, command_bytes: &Vec<u8>) {  in exec_commands_in_line()
116         let input_command = String::from_utf8(command_bytes.clone()).unwrap();  in exec_commands_in_line()
167     fn write_commands(&self, command_bytes: &Vec<u8>) {  in write_commands()
172         file.write_all(&command_bytes)  in write_commands()