RosettaCodeData/Task/Conditional-structures/Tailspin/conditional-structures-2.tailspin

foo templates
  when <|=0> do 'zero' !
  when <|..0> do
    'negative ' !
    -$ -> # !
  when <|?($ mod 2 matches <|=0>)> do 'even' !
  otherwise 'odd' !
end foo

2 -> if <|3..5> -> $ + 10 !