YENGswitch

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

Make sure to add yoptions; to the second line of the script, usually line number 1 starting from 0.

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

Other:

switch (command)
{
    case 4:
        llSay(PUBLIC_CHANNEL, "4");
        break;
    case 5 ... 20:
        llSay(PUBLIC_CHANNEL, "5 to 20");
        break;
    case 22:
    case 27:
        llSay(PUBLIC_CHANNEL, "other");
        break;
    default: llOwnerSay ("dont know how to handle " + command);
}

The different case ranges can not overlap.