Anathema

Loops

It's possible to loop over the elements of a collection. The syntax for loops are for <element> in <collection>.

Example: looping over values

for value in [1, 2, "hello", 3]
    text value

Elements generated by the loop can be thought of as belonging to the parent element as the loop it self is not a element. See example below.

Example: mixing loops and elements

vstack
    text "start"
    for val in [1, 2, 3]
        text "some value: " val "."
    text "end"

The above example would render:

start
some value: 1.
some value: 2.
some value: 3.
end

For-loops also expose a loop variable that is set to the current loop iteration.

Example: loop variable

vstack
    for val in ["a", "b", "c", "d"]
        text "#" loop ": " val

The above example would render:

#0: a
#1: b
#2: c
#3: d

Note: For-loops do not work inside attributes, and can only produce elements.