Implement new number register `.br' which is set to 1 if a macro has

been called as .foo and to 0 if called as 'bar.  This is useful for
-mtrace so that requests can be reliably traced too.

* src/roff/troff/input.cpp (input_iterator): Add virtual function
`get_break_flag'.
(macro_iterator): Add `with_break' member and `get_break_flag'
function.
Update constructors.
(input_stack): Add function `get_break_flag'.
(break_flag_reg): New number register class.
(input_init_requests): Register `.br'.

* src/roff/troff/TODO: Updated.

* tmac/trace.tmac: s/!!sp/!!!sp/.
Modify definitions of `de', `de1', `am', and `am1' to use \n[.br].

* docs/groff.texinfo, man/groff.man, man/groff_diff.man, NEWS:
Document it.

1 files changed, 5 insertions, 1 deletions

diff --git a/man/groff.man b/man/groff.man
index afc3a9d1..90e9d33b 100644
--- a/man/groff.man
+++ b/man/groff.man
@@ -2,7 +2,7 @@
 .ig
 groff.man
 
-Last update: 27 Mar 2006
+Last update: 04 Apr 2006
 
 This file is part of groff, the GNU roff type-setting system.
 
@@ -3076,6 +3076,10 @@ if option
 is used; always\~1 in
 .BR nroff .
 .
+.REG .br
+Within a macro, set to\~1 if macro called with the `normal' control
+character, and to\~0 otherwise.
+.
 .REG .c
 Current input line number.
 .