0

Align leader characters from the left (default setting).

1

Align leader characters from the right.

2

Align leaders from the left, but ignore paragraph margins and rules.

3

Align leaders from the right, but ignore paragraph margins and rules.

4

Align leaders from the left hand edge of the leader itself with an optional left gap, see tldrlgap.

5

Align leaders from the right hand edge of the leader itself with an optional right gap, see tldrrgap.

6

Flush out: after taking into account left and right gaps, work out how many whole leaders can fit. Any remaining space is then added to the inter-leader gap so that leaders are flushed out.

7

Flush in: as mode 6, but the remaining space is used to increase the left and right gaps as well as the inter-leader gap.