RosettaCodeData/Task/Flow-control-structures/Icon/flow-control-structures-1.icon

    if x := every i := 1 to *container do {     # * is the 'length' operator
        if container[i] ~== y then
            write("item ", i, " is not interesting")
        else
            break a
    } then
        write("found item ", x)
    else
        write("did not find an item")