Improve line numbering support in tbl and with me macros.

* tmac/e.tmac (n1, n2, TH, PS): Implement it.
(@h, @n, @o, @t, @k, )b, (c, (q, )q, (l, )l, (f, @q, PE): Updated.
* doc/meref.me: Document changes.

* src/preproc/tbl/table.cpp (ROW_START_LINE_REG, ROW_SAVE_LINE_REG,
ROW_MAX_LINE_REG, REPEATED_NM_SET_MACRO, REPEATED_NM_SUS_MACRO): New
macros.
(table::init_output): Define REPEATED_NM_SET_MACRO and
REPEATED_NM_SUS_MACRO.
(table::print_single_hline, table::print_double_hline,
table::define_bottom_macro, table::do_row, table::do_top,
table::do_bottom): Updated.

* doc/webpage.ms: Updated.

2 files changed, 55 insertions, 2 deletions

diff --git a/doc/meref.me b/doc/meref.me
index 848b6c83..1685561f 100644
--- a/doc/meref.me
+++ b/doc/meref.me
@@ -1329,12 +1329,25 @@ on each page.
 .TL
 .b .n2
 .i N
+.i c
 .DE
 Number lines from
 .i N ,
 stop if
 .i N
-= 0.
+missing; resume where stopped with (unsigned) value
+.i N
+or increment
+.i N
+if
+.i N
+is \(+-\c
+.i N .
+If
+.i c
+is c, maintain compatibility with original
+.b .n2
+by narrowing line width to accommodate numbers.
 .TL
 .b .sk
 .DE
diff --git a/doc/webpage.ms b/doc/webpage.ms
index cbd9e3b7..b195f6c8 100644
--- a/doc/webpage.ms
+++ b/doc/webpage.ms
@@ -296,6 +296,46 @@ postings to the corresponding mailing list.
 .
 .
 .SH
+NEWS VERSION 1.21.1
+.LP
+.SH 2
+groff
+
+.ULS
+.LI
+A new option `\-j' has been added to call the `chem' preprocessor.
+.ULE
+.
+.
+.SH 2
+macro packages
+
+.ULS
+.LI
+Support for the `refer' preprocessor has been added to the \-mm macro
+package.
+
+
+.LI
+Bugs in the support for the `n1' and `n2' requests in the \-me package were
+fixed that caused extra line numbers to be added to text in floats and
+diversion environments, as well as equations and pic-style pictures.
+
+The `TH' macro was changed for compatibility with line number support in
+tables.
+.ULE
+.
+.
+.SH 2
+tbl
+
+.ULS
+.LI
+Added numbered line support in tables.
+.ULE
+.
+.
+.SH
 NEWS VERSION 1.21
 .LP
 .SH 2
@@ -689,7 +729,7 @@ Here the same table using a more expanded syntax:
 Tables can be nested; `hdtbl' works without a preprocessor so that the
 full capability of groff's macro engine is available.
 
-This package currently works with `-Tps' only.
+This package currently works with `\-Tps' only.
 
 .LI
 \-mandoc now supports multiple man pages (in either man or mdoc format).