Integer Slice Functions
until function builds a range of integers.
The above generates the list
[0, 1, 2, 3, 4].
This is useful for looping with
range $i, $e := until 5.
untilStep generates a list of counting integers. But it allows
you to define a start, stop, and step:
untilStep 3 6 2
The above will produce
[3 5] by starting with 3, and adding 2 until it is equal
or greater than 6. This is similar to Python’s