* man/groff.man: Document missing number registers (`$$', `.b',

`.F', `.j', `.k', `.L', `.O', `.P', `.R', `opmaxx', `opmaxy',
`opminx', `opminy').

* doc/groff.texinfo: Document missing `.R' register.
Add `.U' to register index.

1 files changed, 60 insertions, 0 deletions

diff --git a/man/groff.man b/man/groff.man
index b5790b1e..4e59c25b 100644
--- a/man/groff.man
+++ b/man/groff.man
@@ -3439,6 +3439,11 @@ results from request calls.
 .PD 0
 .
 .TPx
+.REG $$
+The process ID of 
+.BR troff .
+.
+.TPx
 .REG .$
 Number of arguments in the current macro or string.
 .
@@ -3457,6 +3462,12 @@ is used; always\~1 in
 .BR nroff .
 .
 .TPx
+.REG .b
+The emboldening offset while
+.request .bd
+is active.
+.
+.TPx
 .REG .br
 Within a macro, set to\~1 if macro called with the `normal' control
 character, and to\~0 otherwise.
@@ -3512,6 +3523,10 @@ The name or number of the current environment (string-valued).
 Current font number.
 .
 .TPx
+.REG .F
+The name of the current input file (string-valued).
+.
+.TPx
 .REG .fam
 The current font family (string-valued).
 .
@@ -3591,6 +3606,15 @@ Positive if last output line contains
 .esc c .
 .
 .TPx
+.REG .j
+The current adjustment mode.
+It can be stored and used to set adjustment.
+(n=1, b=1, l=0, r=5, c=3).
+.
+.TPx
+.REG .k
+The current horizontal output position (relative to the current indentation).
+.TPx
 .REG .kern
 1\~if pairwise kerning is enabled, 0\~otherwise.
 .
@@ -3599,6 +3623,11 @@ Positive if last output line contains
 Current line length.
 .
 .TPx
+.REG .L
+The current line spacing setting as set by
+.request .ls .
+.
+.TPx
 .REG .lg
 The current ligature mode (as set by the
 .request lg
@@ -3650,10 +3679,21 @@ Useful in conjunction with
 Current page offset.
 .
 .TPx
+.REG .O
+The suppression nesting level (see
+.esc O ).
+.
+.TPx
 .REG .p
 Current page length.
 .
 .TPx
+.REG .P
+1\~if the current page is being printed, 0\~otherwise (as determined by the
+.option \-o
+command line option).
+.
+.TPx
 .REG .pe
 1\~during page ejection, 0\~otherwise.
 .
@@ -3676,6 +3716,11 @@ The last-requested point size in scaled points.
 The current post-vertical line spacing.
 .
 .TPx
+.REG .R
+The number of unused number registers.
+Always 10000 in GNU troff.
+.
+.TPx
 .REG .rj
 The number of lines to be right-justified as set by the
 .request rj
@@ -3871,6 +3916,21 @@ Current month (1-12).
 Vertical position of last printed text base-line.
 .
 .TPx
+.REG opmaxx
+.TPx
+.REG opmaxy
+.TPx
+.REG opminx
+.TPx
+.REG opminy
+These four registers mark the top left and bottom right hand corners of a box
+which encompasses all written glyphs.
+They are reset to \-1 by
+.escarg O 0
+or
+.escarg O 1 .
+.
+.TPx
 .REG rsb
 Like
 .register sb ,