nested select statements
select x of case 100 a = b break case 200 select x2 of case 201 a = b2 break case 202 a = b2 + c break case 203 a = b2 - c end_select break case 300 a = b - c end_selectIt is equivalent to:
if x == 100 then // case 100 a = b else if x == 200 then // case 200 if x2 == 201 then // case 201 a = b2 else if x2 == 202 then // case 202 a = b2 + c else if x2 == 203 then // case 203 a = b2 - c endif else if x == 300 then // case 300 a = b - c endif