per

Sets the step for a range.

Syntax: <range> per <expression>

Category

range

Related

• ante
• usque

Examples

examples/corpus/per/per.fab (canonical · keyword)

Sets the step for a range.

# per — step size for range iteration
#
# itera ab <initium>‥<finis> per <gradus> <var> { … }   -- half-open range step
#
# GRAMMAR:
#   iterStmt :← 'itera' 'ab' expr '‥' expr 'per' expr binding block
#
# EXPECTED OUTPUT:
#   0, 2, 4, 6 (step by 2 over 0‥8).

incipit {
    # i = 0, 2, 4, 6 (step by 2)
    itera ab 0‥8 per 2 fixum i {
        nota i
    }
}

Expected output:

0
2
4
6