fn process_quoted(&mut self, ch: char) {
        if ch == '"' {
            self.execution_mode = Mode::Normal;
            return;
        }
        self.stack.push(util::char_to_i64(ch));
    }
// process_quoted reads the current character and pushes it onto the stack if needed
process_quoted reads the current character and pushes it onto the stack if needed
process_quoted reads the current character and pushes it onto the stack if needed
fn process_quoted(&mut self, ch: char) {
        if ch == '"' {
            self.execution_mode = Mode::Normal;
            return;
        }
        self.stack.push(util::char_to_i64(ch));
    }
fn process_quoted ( & mut self , ch : char ) { if ch == '"' { self . execution_mode = Mode :: Normal ; return ; } self . stack . push ( util :: char_to_i64 ( ch ) ) ; }
process_quoted reads the current character and pushes it onto the stack if needed
process_quoted reads the current character and pushes it onto the stack if needed
&mut self
ch
char
&mut self
ch
char