gbranden pushed a commit to branch master
in repository groff.
commit 08cd7820ef39779e6439e64c3ff1975edaa277b1
Author: G. Branden Robinson <[email protected]>
AuthorDate: Mon Dec 19 12:09:35 2022 -0600
groff_man*(7): Correct and clarify EX/EE.
* Research Unix and its descendants' EX/EE _did_ manipulate filling, but
not hyphenation. (DWB apparently forked from Research/Kernighan troff
about 1987, but some effort to keep sync was undertaken.)
* Solaris troff is an oddball as always.
* Tighten wording.
---
tmac/groff_man.7.man.in | 20 +++++++-------------
1 file changed, 7 insertions(+), 13 deletions(-)
diff --git a/tmac/groff_man.7.man.in b/tmac/groff_man.7.man.in
index e90c338f2..de7db409b 100644
--- a/tmac/groff_man.7.man.in
+++ b/tmac/groff_man.7.man.in
@@ -648,24 +648,18 @@ before the spaces.
_endif()dnl
.IP
.\" Also see subsection "History" below...
-These macros are extensions,
-introduced in Ninth Edition Research Unix,
-to the original
-.I man
-package.
+These macros are extensions introduced in Ninth Edition Research Unix.
.
-Many systems running
-AT&T,
+Systems running that
+.IR troff , \" AT&T Research Unix
+or those from
+DWB,
Heirloom Doctools,
or Plan\~9
.I troff
support them.
-.\" Solaris 10 troff does not support .EX/.EE.
-.\"
-.\" Plan 9 troff does, but its implementation doesn't manipulate filling
-.\" or hyphenation, so AT&T Unix's probably didn't either.
-.\"
-.\" Neatroff doesn't ship (m)an macros.
+.\" Solaris 10 troff does not support .EX/.EE. Neatroff doesn't ship
+.\" (m)an macros.
.
To be certain your page will be portable to systems that do not,
copy their definitions from the
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