Can goto() statements be avoided in this program -- pls place code?

Projects Programming
19

I hope that you have noticed the challenge of maintaining the indentations in a program like this (my version) which contains nested if-else structures.

If the nesting gets too tough, it might be time to consider "re-factoring" your program:

void loop() {
  input = keypad.getKey(); //L0:
  if(input) {                         //L1:
    if(flag2==0x00) {
      process_flag200();
    } else {
      if(input == '*') {
        process_asterix();
      } else if(flag3 == 0x00 && input == 'b') {
        process_b();
      }
    }
  }
}