YENGswitch

switch can only work in integer expressions, or strings
break, default and '...' are keywords used with it.

simple string (command) example:

switch (command)
{
    case "turnleft":
    {
        TurnLeft ();
        break;
    }
    case "turnright":
    {
        TurnRight ();
          break;
    }
    default: llOwnerSay ("dont know how to handle " + command);
}

a simple integer example ... can be used to define a range

switch (command)
{
    case 4:
    {
        llSay(0, "4");
        break;
    }
    case 5 ... 20:
    {
      // ... defines a range
      llSay(0, "r");
      break;
    }
    default: llOwnerSay ("dont know how to handle " + command);
}

other

switch (command)
{
    case 4:
        llSay(0, "4");
        break;
    case 5 ... 20:
      llSay(0, "5 to 20");
      break;

    case 22:
    case 27:
      llSay(0, "other");
      break;

    default: llOwnerSay ("dont know how to handle " + command);
}

the different case ranges can not overlap