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-rw-r--r--roff.745
1 files changed, 34 insertions, 11 deletions
diff --git a/roff.7 b/roff.7
index f87372d7..ee1981a8 100644
--- a/roff.7
+++ b/roff.7
@@ -1,7 +1,7 @@
.\" $Id$
.\"
.\" Copyright (c) 2010, 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
-.\" Copyright (c) 2010-2018 Ingo Schwarze <schwarze@openbsd.org>
+.\" Copyright (c) 2010-2019 Ingo Schwarze <schwarze@openbsd.org>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
@@ -908,11 +908,23 @@ This is a Heirloom extension and currently ignored.
Enable or disable an OpenType feature.
This is a Heirloom extension and currently ignored.
.It Ic \&fi
-Switch to fill mode.
-See
-.Xr man 7 .
-Ignored in
-.Xr mdoc 7 .
+Break the output line and switch to fill mode,
+which is active by default but can be ended with the
+.Ic \&nf
+request.
+In fill mode, input from subsequent input lines is added to
+the same output line until the next word no longer fits,
+at which point the output line is broken.
+This request is implied by the
+.Xr mdoc 7
+.Ic \&Sh
+macro and by the
+.Xr man 7
+.Ic \&SH ,
+.Ic \&SS ,
+and
+.Ic \&EE
+macros.
.It Ic \&fkern Ar font minkern
Control the use of kerning tables for a font.
This is a Heirloom extension and currently ignored.
@@ -1347,11 +1359,22 @@ Declare the need for the specified minimum vertical space
before the next trap or the bottom of the page.
Currently ignored.
.It Ic \&nf
-Switch to no-fill mode.
-See
-.Xr man 7 .
-Ignored by
-.Xr mdoc 7 .
+Break the output line and switch to no-fill mode.
+Subsequent input lines are kept together on the same output line
+even when exceeding the right margin,
+and line breaks in subsequent input cause output line breaks.
+This request is implied by the
+.Xr mdoc 7
+.Ic \&Bd Fl unfilled
+and
+.Ic \&Bd Fl literal
+macros and by the
+.Xr man 7
+.Ic \&EX
+macro.
+The
+.Ic \&fi
+request switches back to the default fill mode.
.It Ic \&nh
Turn off automatic hyphenation mode.
Currently ignored.