Implementing a .nop request which does nothing.

* src/roff/troff/input.cc (nop_request): New function.
(init_input_requests): Use it.
* src/roff/troff/troff.man, NEWS, man/groff.man: Updated.


* doc/groff.texinfo: Added some comments.

1 files changed, 16 insertions, 0 deletions

diff --git a/NEWS b/NEWS
index f943164b..412a3254 100644
--- a/NEWS
+++ b/NEWS
@@ -8,6 +8,22 @@ To support platforms with 8+3 filenames, `-mFOO' will now search first for
 tmac.FOO and then for FOO.tmac.  Additionally, some macro files have been
 renamed using the latter scheme to avoid 8+3 name clashes.
 
+Troff
+-----
+
+A new request `nop' (no operation) has been added which is similar to
+`if 1'.  Now,
+
+.if t \{
+Hallo!
+.\}
+
+can now be written as
+
+.if t \{
+.  nop Hallo!
+.\}
+
 VERSION 1.16.1
 ==============