I was slightly disappointed I couldn’t use
*set dayn "@{(dayN < 7) (${dayN}+1) | 1}"
when writing that day-night system in this post.
(The error being “Not a number: (1 + 1)” .)
Best I managed was
*temp nextDay (dayN + 1)
*set dayn "@{(dayN < 7) ${nextDay} | 1}"
Is there an alternative syntax that allows you to get by without that extra variable?