implement so-called absolute horizontal motion: \h'|...',

used for example by zoem(1)

1 files changed, 5 insertions, 2 deletions

diff --git a/roff.7 b/roff.7
index 013721cd..3d185bf6 100644
--- a/roff.7
+++ b/roff.7
@@ -1956,8 +1956,11 @@ and
 .Ss \eH\(aq Ns Oo +|- Oc Ns Ar number Ns \(aq
 Set the height of the current font; ignored by
 .Xr mandoc 1 .
-.Ss \eh\(aq Ns Ar width Ns \(aq
-Horizontal motion relative to the current position.
+.Ss \eh\(aq Ns Oo Cm \&| Oc Ns Ar width Ns \(aq
+Horizontal motion.
+If the vertical bar is given, the motion is relative to the current
+indentation.
+Otherwise, it is relative to the current position.
 The default scaling unit is
 .Cm m .
 .Ss \ek[ Ns Ar name ]