-- a case statement for Lua
function testcase(k)
	case (k)
	  is 10,11: return 1
	  is 12: return 2
	  is 13 .. 16: return 3	  
	  else return 4
	endcase
end

function matchcase(s)
	case(s)
		matches '^hell': return 5
		matches '(%d+)%s+(%d+)',result:
			return tonumber(result[1])+tonumber(result[2])
		else return 0
    endcase
end

assert(testcase(1)==4)
assert(testcase(13)==3)
assert(testcase(12)==2)
assert(testcase(11)==1)
assert(testcase(15)==3)
assert(matchcase('hello')==5)
assert(matchcase('10 20')==30)
print 'fine!'