Integer Slice Functions

until

The until function builds a range of integers.

until 5

The above generates the list [0, 1, 2, 3, 4].

This is useful for looping with range $i, $e := until 5.

untilStep

Like until, 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 range function.

seq

Works like the bash seq command.

• 1 parameter (end) - will generate all counting integers between 1 and end inclusive.
• 2 parameters (start, end) - will generate all counting integers between start and end inclusive incrementing or decrementing by 1.
• 3 parameters (start, step, end) - will generate all counting integers between start and end inclusive incrementing or decrementing by step.

seq 5       => 1 2 3 4 5
seq -3      => 1 0 -1 -2 -3
seq 0 2     => 0 1 2
seq 2 -2    => 2 1 0 -1 -2
seq 0 2 10  => 0 2 4 6 8 10
seq 0 -2 -5 => 0 -2 -4