Adding upstream version 1.23.0.upstream/1.23.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1672 insertions, 0 deletions

diff --git a/contrib/mm/ChangeLog b/contrib/mm/ChangeLog
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+2023-05-25  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* groff_mm.7.man (Macros) <INDP>: Clarify operation.
+
+	Fixes <https://savannah.gnu.org/bugs/?64206>.
+
+2023-02-17  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	[mm]: Add `--help` option support to mmroff.
+
+	* mmroff.pl: Recognize `--help` option.
+	* mmroff.1.man (Synopsis, Options): Document.
+
+2023-02-01  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (H, SETR): Trivially refactor.  Rename register to
+	conform to convention: `hd-mark-trimmed` -> `hd@mark-trimmed`.
+	This register is used outside of its "module", "hd".
+
+2023-02-01  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (H, LI): Trivially refactor.  Annotate and test
+	threshold registers consistently.
+
+2023-02-01  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac: Fix code style nit.  Except for initial register
+	tests for GNU troff formatter and compatibility mode, migrate
+	special character, register, and string interpolation escape
+	sequences from `(xx` form to `[xx]`.  Also rewrite an instance
+	of `\nP` to `\n[P]`.
+
+2023-01-24  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	When register `Pt` was 2, paragraphs immediately following
+	displays and lists were being indented, contrary to DWB mm
+	behavior.
+
+	* m.tmac: Replace `par@ind-flag` register with two separate
+	state bits, `par*indentation-eligible` and
+	`par@suppress-indentation`.
+	(P, nP): Remove complex test for deciding whether the current
+	paragraph is being set immediately after a heading.
+	(P): Set `par*indentation-eligible` to the logical complement of
+	`par@suppress-indentation`.  Call `par@doit` (which underlies
+	both `P` and `nP`) unconditionally.
+	(nP): Force `par*indentation-eligible` off, since numbered
+	paragraphs are not influenced by a `Pt` value of "2" in DWB mm.
+	{The paragraph number occupies the indentation space.}
+	(par@doit): Introduce local register `par*do-indent`,
+	manipulate it, and use it to control `ti` request instead of
+	scattering the request across multiple locations.  Remove this
+	register when done.  Clear `par@suppress-indentation` at end,
+	since after indentation is suppressed once, it should not happen
+	again until a special circumstance (the setting of a heading,
+	display, or list) arises.
+	(H): Convert test of `hd*htype` register, which tells us if
+	we're setting a run-in heading or not, from `if` to `ie`.  (The
+	first paragraphing macro call after a run-in heading should
+	_not_ have its indentation suppressed, because the material
+	after the heading title constitutes a first pagraph.)  In the
+	true arm, set `par@suppress-indentation`; in the new else arm,
+	clear it.  This replaces the "complex test" above, and seems
+	much more straightforward and reliable.  Stop manipulating
+	`par@ind-flag`.
+	(df@end, ds@end, LC): Set `par@suppress-indentation` instead of
+	clearing `par@ind-flag`.
+	(LE): Set `par@suppress-indentation`.
+
+	Fixes <https://savannah.gnu.org/bugs/?54909>.  Thanks to Jeff
+	Conrad for the report.
+
+2023-01-24  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	Regression-test Savannah #54909.
+
+	* tests/P-indentation-works.sh: Do it.
+	* mm.am (mm_TESTS): Run test.
+
+2023-01-24  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (df@print-float): Eliminate spew at high debug levels.
+	This macro gets called even when there aren't any floating
+	displays pending, so we cannot assume that related registers are
+	defined.
+
+2023-01-24  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (P): Fix missing backslash after brace escape sequence.
+	Problem introduced by me in 3b1afbdb8e, 6 January.
+
+2023-01-22  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac: Help user navigate the document type macros.  Stop
+	setting up the formatter to throw "unrecognized macro"
+	diagnostics for macros that are plainly documented in
+	groff_mm(7).
+	(@disable): New macro takes a list of macros whose definitions
+	are replaced with a warning diagnostic about how they're no
+	longer unavailable due to use of another document type macro
+	already called, identified by new string `@cover`.
+	(TL, MT, COVER, LT, LO): Define `@cover` and call `@disable`.
+	Drop existing diagnostics that did a similar thing as above,
+	more verbosely.
+
+2023-01-17  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac: Revise diagnostic messages.  Use a consistent message
+	format, including a space after a colon and the name of the
+	complaining macro.
+	(pg@header): Drop unnecessary empty comment at end of macro
+	call.  Macro call syntax differs from `ds` request syntax.
+	(2C, MC, FD, FS, FE, DF, LB, LI, LE, LC, AL, ML, VL, BL, DL, RL)
+	(BVL, TH, TE, PS, B1, B2, APPSK, AS, SETR, GETST, GETHN, GETPN)
+	(INITI, IND, LT, LO): Refer to self with `\$0` escape sequence
+	instead of a literal.
+	(2C, MC, PS): Throw fatal error immediately instead of doing
+	other processing first.
+	(2C, MC, FD, FS, FE, DF, ds@set-format, ds@end, LB, LI, LE, LC)
+	(AL, ML, VL, BL, DL, RL, BVL, TH, TE, B1, B2, APPSK, AS, SETR)
+	(GETST, GETHN, GETPN, INITI, IND, let*lt-sign, LT, LO): Stop
+	unnecessarily quoting arguments to @error macro.
+	(FD, LB, VL, BVL, APPSK, SETR, GETST, GETHN, GETPN, INITI):
+	State quantities of expected and actual arguments.
+	(FS, FE, LC, B1, INITI): Clarify message.
+	(DF, DS): Store macro name in `ds@macro` for use in later
+	diagnostics thrown by internal macros.
+	(DS): Drop dead store to register `XXX`; debugging detritus?
+	(ds@set-format): Use `ds@macro`.
+	(ds@set-format, let*lt-sign, LT, LO): Bracket unrecognized
+	argument in single quotes.
+	(ds@set-format): Characterize argument as "unrecognized", not
+	"wrong".  Similarly with the fill style.
+	(LI, LE, IND): Offer advice.
+	(LE): Describe problem in same terms as `LI` ("no list active").
+	(LC): Validate argument as numeric expression and die with
+	diagnostic if it isn't one.
+	(AL, ML, VL, BL, DL, RL, BVL): Weaken fatal diagnostic to
+	warning; excess arguments are not a serious problem.
+	(PS): Simplify control flow; since @error does not return,
+	convert `ie` request to `if` and make `el` branch unconditional.
+	(RP): Weaken fatal diagnostic to warning and return early;
+	calling this macro without any references defined does no
+	structural damage to a document.
+	(INITI): Remove redundant conditional.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (IX): Delete.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (MC): Throw internal error if we don't leave
+	`pg*cols-per-page` in a valid state after invalidating it to
+	count columns.  Also simplify expression.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (1C): Warn and return early instead of bombing out if
+	called when multiple columnation is inactive.  A no-op should
+	not be a fatal error.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (@abort): Introduce macro for internal errors,
+	unconditionally reporting a backtrace...
+	(misc@pop-set, hd@split, MULN, df@print-float, IND): ..and use
+	it instead of `@error` for problems with internal state.
+	(IND): Also fix botch in reported error.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (SA): Reject an argument value > 1 as invalid.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (P): Quote unrecognized argument in warning diagnostic.
+	(OK, PM): Refactor to use `\$0`.
+	(1C): Clarify that formatting can go wrong if you suppress a
+	page break when returning from multi- to single-column mode with
+	a footnote pending.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (Tm): Align with definition of `Sm`, with analogous
+	fallback definitions.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (Sm): Implement string for service mark, for DWB mm
+	compatibility.
+	* groff_mm.7.man: Document it.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (CS): Define to throw diagnostic when used without ".MT
+	4".  (Later, if the "4.MT" file is sourced, this definition is
+	replaced.)
+	* groff_mm.7.man (Description): Clarify `CS` support status.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (MOVE, SM, AT, LO): Weaken diagnostics when given no
+	arguments from (fatal) errors to warnings, then return.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (PIC): Bomb out (with diagnostic) if either of the
+	width or height arguments are not numeric expressions.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (EPIC): Handle and shift off a leading "-L" argument
+	before checking argument count.  Then, if fewer than two
+	arguments remain, throw warning diagnostic and return early
+	instead of bombing out.  Do bomb out (with diagnostic) if either
+	of the width or height arguments are not numeric expressions.
+	Fix bug which prevented third argument from being interpreted.
+	Annotate potential future development.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (AU): Partially revert commit 4fd984adc9, 2021-07-17.
+	`AU` can be called for the sole purpose of "closing" a document
+	title "opened" with `TL`.
+	* groff_mm.7.man (Macros) <AU>: Update description.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (TM): Warn if called without arguments.
+
+2023-01-16  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (AST): Preserve any user-specified leading spaces in
+	argument.
+
+2023-01-06  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (P): Warn if argument is non-numeric, and discard it.
+	Also warn if argument is out of range; people accustomed to
+	setting the `Pt` register to 2 might mistakenly believe it to be
+	meaningful here.
+
+2023-01-03  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* mm/0.MT:
+	* mm/5.MT: Drop never-read register `cov*mt0-ind`.
+
+2023-01-03  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	Improve cover sheet diagnostics.
+
+	* m.tmac (MT): Warn and ignore if `COVER` or self already
+	called.
+	(COVER): Warn and ignore if `MT` already called.
+	* mm/0.MT (cov@print-title): Abort if title not defined; tell
+	user how to use the macros.
+	(cov@print-authors): Add similar paranoid diagnostic that I
+	don't think is reachable (since you _have_ to call `AU` to
+	"close" `TL`).
+	* mm/4.MT (cov@print-title, cov@print-authors):
+	* mm/5.MT (cov@print-title): As "0.MT".
+
+	* mm/4.MT: Get rid of spurious blank line in file.
+
+2023-01-03  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	Fix Savannah #63613.
+
+	* mm/0.MT (cov*print-authors): Iterate through _all_ technical
+	memorandum numbers instead of stopping one shy of the last.
+	Problem appears to date back to introduction of TM support for
+	memorandum type 1 in commit a48ab7b6d (groff 1.05, 1992-03-18).
+
+	Fixes <https://savannah.gnu.org/bugs/?63613>.
+
+2023-01-03  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	Regression-test Savannah #63613.
+
+	* tests/MT-1-reports-all-TM-numbers.sh: Do it.
+	* mm.am (mm_TESTS): Run test.
+
+2022-12-17  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (let*mt-sign): Check strings populated by optional
+	arguments to `AU` macro for existence before interpolating them.
+
+	Fixes <https://savannah.gnu.org/bugs/?24049>.  Thanks to Werner
+	Lemberg for the report.
+
+2022-11-22  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* mse.tmac: Set `pg*footer-size` to four vees, not four basic
+	units; the latter is too small by orders of magnitude on
+	typesetting output devices.
+
+	Fixes <https://savannah.gnu.org/bugs/?63398>.  Thanks to Hans
+	Bezemer for the report.
+
+2022-11-21  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	Regression-test Savannah #63398.
+
+	* tests/mse_has-sufficient-footnote-space.sh: Do it.
+	* mm.am (mm_TESTS): Run test.
+
+2022-10-09  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	[mm]: Add `--version` option support to mmroff.
+
+	* mm.am (mmroff): Replace `@VERSION@` token in script.
+	* mmroff.pl: Recognize `--version` option.
+	* mmroff.1.man (Synopsis, Options): Document.
+
+2022-10-09  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* mmroff.pl: Add proper diagnostic subroutine.  Add "progname"
+	scalar to store the name of the program.
+	(Die): New subroutine.
+	(print_index, top level): Call Die() when encountering
+	prohibitive problems instead of flinging a string into a void
+	context.
+
+2022-10-09  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* mmroff.pl: Enable Perl warnings.
+
+2022-10-09  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	[mm]: Refactor generation of "mmroff" script.
+
+	* mmroff.pl: Replace absolute filespec with `@PERL@` replacement
+	token.  This is documentary; the filespec was getting replaced
+	anyway.
+	* mm.am (mmroff): Use more idiomatic token replacement strategy.
+	Also create target as a .tmp-suffixed file at first since it is
+	not initially executable, so that we don't race against anything
+	needing to run it in a parallelized build.  (This is a
+	hypothetical concern; at present, nothing runs mmroff during the
+	build.)
+
+2022-10-02  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (pg@header): Add page length sufficiency check.
+
+	Fixes <https://savannah.gnu.org/bugs/?24048>.  Thanks to Werner
+	Lemberg for the report.
+
+2022-10-02  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	Regression-test Savannah #24048.
+
+	* tests/short-pages-do-not-overflow-stack.sh: Test it.
+	* mm.am (mm_TESTS): Run test.
+
+2022-09-17  Nikita Ivanov <nikita.vyach.ivanov@gmail.com>
+
+	* mm/ms.cov (cov@print-title, cov@print-authors): Escape
+	newlines when beginning conditional blocks.
+
+	Fixes <https://savannah.gnu.org/bugs/?63075>.  [Problems
+	introduced by me in commits 59d1fd7a5e and 4fd984adc9, both
+	2021-07-17. --GBR]
+
+2022-09-16  Nikita Ivanov <nikita.vyach.ivanov@gmail.com>
+
+	* m.tmac (misc@ev-keep): Select configured default font family,
+	as with `.fam H` at the top of the document, for example, when
+	switching to new environment.
+
+	Fixes <https://savannah.gnu.org/bugs/?63067>.
+
+2022-08-14  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (PY): Add new macro.
+	(PE): Replace `init@reset` call with `PY` (and then space by
+	half a vee as before).
+
+	* groff_mm.7.man (PY): Document it.
+
+	Fixes <https://savannah.gnu.org/bugs/?62900>.
+
+2022-08-14  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (@warning, @error): Stop pointlessly using no-break
+	control character when invoking the `tm` request, which never
+	causes a break in formatted output.  (Management of the standard
+	output and standard error streams is the user's responsibility.)
+	(@error): Drop old-fashioned asterisk banners around error
+	diagnostics.  Stop invoking `ab` with redundant and sometimes
+	misleading arguments.  In groff 1.23, `ab` exits silently if
+	given none.  We've already issued a diagnostic and moreover not
+	all problems are with "syntax"; some are semantic.
+
+2022-08-14  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (PS): Validate better; check for 2 arguments exactly.
+
+2022-08-14  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (PS): Refactor; drop dead code.  The `pic*in` register
+	was used only for dead stores; it was never read or tested.
+
+2022-08-04  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (initialization): In nroff mode, surround automatically
+	numbered footnote markers in body text with square brackets, as
+	groff me(7) and ms(7) do.
+
+2022-08-04  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (initialization): Recognize new register `V` for
+	setting the vertical spacing from the command line, instead of
+	blindly setting the vertical spacing two points larger than the
+	type size.  Handle setting of `V` and type size `S` in case they
+	are given with an appended scaling unit, using the same
+	technique as groff ms(7)--if the values are over 1,000, assume
+	that conversion to basic units by the formatter has already
+	taken place.
+	* groff_mm.7.man (Registers) <S, V>: Document it.
+
+2022-08-03  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (:p): Define register as an alias of `ft*nr`; the
+	former name is a documented DWB mm feature.
+
+2022-08-01  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* groff_mm.7.man: Document more features.
+	(Macros) <)E, VM>: Document these DWB mm internals as exposed by
+	groff mm.
+	(Macros) <B1, B2, MC>: Document as GNU extensions.
+	(Strings) <BU, Ci, F>: Document.
+	(Registers) <:R, Au, Ex, Fg, H8...H14, Oc, S>: Document.
+
+2022-07-29  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* groff_mm.7.man: Document further differences between DWB mm
+	and groff mm, including several unimplemented features.
+
+2022-07-29  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac: Remove pointless conditionals in initialization.
+	Simplify if-else request pairs that did the same thing in both
+	branches.
+
+2022-07-28  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* groff_mm.7.man: Document `NE` macro.
+
+2022-03-15  Damian McGuckin <damianm@esi.com.au>
+
+	* m.tmac (eq@check): Compensate for display indentation when
+	setting equation label.
+
+	Fixes <https://savannah.gnu.org/bugs/?62190>.
+
+2022-04-27  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	Regression-test Savannah #62190.
+
+	* tests/place-equation-labels-correctly-in-displays.sh: Test it.
+	* mm.am (mm_TESTS): Run test.
+
+2021-08-12  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac (R): Alter to work analogously to `B` and `I` macros;
+	accept multiple arguments if given, and alternate roman with
+	previous font.  Stop explicitly turning off underlining.
+
+2021-07-17  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	Refactor author title handling.
+
+	* m.tmac (AU): Initialize `cov*at!` array element to zero for
+	current author number (`AT` already updates it).
+
+	* mm/ms.cov (cov@print-authors): Enforce requirement documented
+	in groff_mm(7) that .AU is mandatory if .COVER is used.  Emit
+	diagnostic if `cov*au` is not defined, and skip remainder of
+	macro definition.  Test for existence of authors' titles
+	differently; now that `cov*at!` (a count of titles for the
+	current author) is guaranteed to be initialized, we can use it
+	as part of a while loop condition, instead of the hard-coded "9"
+	as an arbitrary limit on the allowed quantity of author titles
+	{though surely even that is obnoxiously high in practice}, and
+	more importantly avoid using a \w escape to measure the width of
+	the interpolation of a potentially undefined string.  Use `nop`
+	to indent text output.  Delete apparent typo causing `mac`
+	warning with respect to undefined `.` macro.  Introduce
+	temporary strings for the author and author title "loop indices"
+	to shorten and clarify logic.  Remove them when done.
+
+	Fixes <https://savannah.gnu.org/bugs/?60926>.
+
+2021-07-17  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* mm/ms.cov (cov@print-title): Enforce requirement documented in
+	groff_mm(7) that .TL is mandatory if .COVER is used.  Emit
+	diagnostic if `cov*title` is not defined, and skip remainder of
+	macro definition.
+
+2021-07-17  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* mm/ms.cov (COVEND): Fix thinko; test for existence of
+	`cov*abs-arg` register with `r` conditional operator, not `d`.
+
+2021-07-17  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac: Stop emitting debugging diagnostic using undefined
+	string.  Problem exposed by commit
+	d6d98d2b3e0ad070037073bb288bbaee3fc04cf0, 8 December 2013.
+
+	Fixes <https://savannah.gnu.org/bugs/?60397>.
+
+2021-07-17  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	Stop installing empty macro files.
+
+	* mm.am: Delete variable `MMLOCALE`.
+	(install_mm): Delete `for` loop that touches the files.
+	(uninstall_mm): Delete `for` loop that deletes the files.
+	* m.tmac: Update initializtion.
+	  - Load the `\*[@country]_locale` file with `msoquiet` instead
+	    of `mso`.
+	  - Add version check to require groff 1.23 or later, since
+	    the `msoquiet` request is now being used.
+	  - Move "include guard" to follow the compatibility mode and
+	    groff version checks.  Remove its `do` prefix.
+	* groff_mm.7.man (Localization): Migrate topic into its own
+	subsection and update discussion.
+
+	Fixes <https://savannah.gnu.org/bugs/?60700>.
+
+2021-07-17  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* mm/ms.cov (cov@print-firm): Do nothing if the `cov*firm`
+	string is not defined.  Silences a `mac` warning and prevents
+	the document date from being incorrectly aligned.
+
+	* tests/ms_cover_sheet_robust_to_missing_AF.sh: Test it.
+	* mm.am (mm_TESTS): Run test.
+
+	Fixes <https://savannah.gnu.org/bugs/?60915>.
+
+2021-07-14  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac: Rename `cov*mt-addresse` to `cov*mt-addressee`.
+	* NOTES: Update the only place the foregoing is documented.
+
+2021-05-31  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* groff_mm.7.man (Description/Macros) <LT>: Document the "SP"
+	{simplified} letter style more completely.  Salutations and
+	formal closings are omitted.
+
+	Solves the remaining part of bug #60373, "the formal closing is
+	omitted completely".  And, regarding the salutation, #60390.
+
+	Fixes <https://savannah.gnu.org/bugs/?60373> and
+	<https://savannah.gnu.org/bugs/index.php?60390>.
+
+2021-05-30  Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
+
+	* m.tmac (let@sg_SP): Stop placing a comma after the first
+	argument (an author name set by AU) if the second argument is
+	empty (an author title set by AT).
+
+	Solves another part of bug #60373, "the writer's name at the
+	bottom is followed by a trailing comma".
+
+	Fixes <https://savannah.gnu.org/bugs/?60389>.
+
+2021-05-30  Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
+
+	* m.tmac (let@print-head): Quote the interpolation of the string
+	`let*lo-SJ`.
+
+	Solves part of bug #60373, "[t]he subject line shows only the
+	first word".
+
+	Fixes <https://savannah.gnu.org/bugs/?60388>.
+
+2021-05-30  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	Add regression tests for Savannah #60373.
+
+	* tests/LT_SP_AU_without_AT_works.sh:
+	* tests/LT_SP_multi-word_LO_SJ_works.sh: Add tests.
+	* mm.am (mm_TESTS): Run tests.
+
+2021-05-30  Tadziu Hoffman <hoffmann@usm.uni-muenchen.de>
+
+	Fix Savannah #57034.
+
+	* m.tmac (AT): Count author title declarations.
+	(let*mt-sign): Use correct index when iterating author names.
+	Prevent page break between author names and titles.  Iterate
+	author titles and write them.
+
+	Fixes <https://savannah.gnu.org/bugs/?57034>.
+
+2021-05-30  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	Add regression test for Savannah #57034.
+
+	* tests/MT_5_includes_AT_in_SG.sh: Test it.  Thanks to Ken
+	Mandelberg for the reproducer.
+	* mm.am (mm_TESTS): Add variable storing script name.
+	(TESTS): Append `mm_TESTS` to run it.
+	(EXTRA_DIST):  Append `mm_TESTS` to ship it.
+
+2021-05-30  Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
+
+	* mm/5.MT (cov@print-title): Fix missing diagnostic.  Memorandum
+	type 5 now requires a title to be declared with .TL.
+
+	Fixes <https://savannah.gnu.org/bugs/?59563>.
+
+2021-05-30  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	[mm]: Cease warning level manipulation.
+
+	Stop mm macro package from manipulating warnings.
+
+	* m.tmac: Remove code that attempted to enable all warnings if
+	none were given on the command line.  It did this by simply
+	comparing the value of the warning register (\n[.warn]) against
+	the default value; but of course, a user could specify -w
+	options that exactly matched the default and the test would not
+	be able to tell, causing puzzling and undesired behavior.
+	Furthermore, the hard-coded default was out of date and did not
+	correspond to recent releases of groff.  If you want all
+	warnings on, use the ".warn" request with no arguments in your
+	mm document or pass "-w w" to groff (see troff(1) or the Texinfo
+	manual for more on warnings).
+
+	See commit 5aa934e7, 20 February 2020.
+
+2021-05-30  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* examples/letter.mm: Revise to be a better example: use macro
+	package more effectively, follow *roff input conventions more
+	carefully, and incorporate more accurate comments.
+
+2021-05-30  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* m.tmac: Update diagnostics.  When aborting, explicitly tell
+	the user we are doing so (see
+	a334cc97abbdfb9c41e28fcd7c187b81a0a3ceac, 25 September 2020).
+	(@mm): Define new string to hold prefix for diagnostic messages.
+	(@warning, @error): Use @mm.  Reorder diagnostic messages to
+	conform with GNU Coding Standards.
+	(OK, PM): Use @warning instead of `tm` request directly.
+
+2019-09-10  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* Makefile.sim: Delete sed transformation of @G@.  It is no
+	longer needed.
+
+2018-03-01  Werner LEMBERG  <wl@gnu.org>
+
+	* m.tmac: Fix `.hy' value.
+
+	* groff_mm.7.man: Updated.
+
+2018-02-28  Werner LEMBERG  <wl@gnu.org>
+
+	* mm.am (mmroff): Use $(AM_V_GEN) to silence file generation.
+
+2017-11-02  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	* examples/letter.mm: New; simple example of mm usage.
+	* mm.am: Ship the file.
+
+2015-08-22  Bernd Warken  <groff-bernd.warken-72@web.de>
+
+	* mmroff.1.man: Rename `mmroff.man'.
+
+	* groff_mm.7.man: Rename `groff_mm.man'.
+
+	* groff_mmse.7.man: Rename `groff_mmse.man'.
+
+	* mm.am: Include renamings.
+
+2015-08-05  Bernd Warken  <groff-bernd.warken-72@web.de>
+
+	* mm.am, Makefile.sim: Add `Last update'.  Setup Emacs mode.
+
+Thu Jul 16 11:52:03 2015  Carsten Kunze  <carsten.kunze@arcor.de>
+
+	Fix line length of `.DS' with indentation (#45452).
+
+	If `.DS' with first argument `1' or `I' is used the output should
+	use an indentation of `\n[Si]n'.  To make this work, the line length
+	within the `.DS' diversion must be set to zero, otherwise the
+	effective line length is too large.
+
+	* m.tmac (DS): Call `ds@set-new-ev' with correct indentation value.
+
+Fri Apr  3 16:33:22 2015  Werner LEMBERG  <wl@gnu.org>
+
+	Make man pages work in compatibility mode.
+
+	* groff_mm.man, groff_mmse.man, mmroff.man: Do it.
+
+Wed Sep  3 21:29:00 2014  Bernd Warken  <groff-bernd.warken-72@web.de>
+
+	* all files in contrib/mm: Copying and Emacs setting.
+
+Thu Aug 28 07:20:00 2014  Werner LEMBERG  <wl@gnu.org>
+
+	* m.tmac (misc@tag): Fix horizontal position.
+	Problem reported by Blake McBride <blake@mcbride.name>.
+
+Sun Mar 30 21:45:00 2014  Steffen Nurpmeso  <sdaoden@yandex.com>
+
+	* Makefile.sim, Makefile.sub: Put straight error-prevention prefixes
+	for `rm'.
+
+Wed Mar  6 22:18:00 2013  Deri James  <deri@chuzzlewit.myzen.co.uk>
+
+	* groff_mm.man: Document .PIC flag -B (box). Default position of
+	picture is left (-L)
+
+Fri Mar  1 08:41:18 2013  Jim Avera  <james_avera@yahoo.com>
+
+	* m.tmac (ds@set-format, LI): s/.ie/.if/ if no else clause.
+
+Sat Nov 17 18:36:56 2012  Anton Shepelev  <anton.txt@gmail.com>
+
+	Fixed the format of header numbers in references.
+
+	* m.tmac (hd-mark-trimmed): New string to hold `hd-mark' without
+	spaces.
+	(SETR): Use it.
+
+Sun Aug 14 07:36:29 2011  Anton Shepelev  <anton.txt@gmail.com>
+
+	Fix indents in nested static displays.
+
+	* m.tmac (DS, ds@end): Save indent with a stack.
+	See http://lists.gnu.org/archive/html/groff/2011-07/msg00068.html
+	for an example.
+
+Sun Mar 27 09:25:01 2011  Anton Shepelev  <anton.txt@gmail.com>
+
+	* m.tmac (misc@tag): Fix last patch.
+
+Sat Mar 19 13:46:50 2011  James Avera  <jimav>
+
+	* m.tmac (RD): Don't use `.ie' but `.if'.
+
+Fri Mar 18 09:10:19 2011  Anton Shepelev  <anton.txt@gmail.com>
+
+	* m.tmac (misc@tag): Retain temporary indentation.
+
+Sat Feb  5 08:06:39 2011  Anton Shepelev  <anton.txt@gmail.com>
+
+	Fix vertical space around displays.
+
+	* m.tmac (ds@end): Use `.SP', not `.sp'.
+
+Fri Jan 28 11:15:29 2011  Werner LEMBERG  <wl@gnu.org>
+
+	Handle `refer-mm.tmac' file.
+
+	* refer-mm.tmac: New file.
+	* Makefile.sub (install_data, uninstall_sub): Handle it.
+
+Fri Jan 28 10:56:29 2011  Werner LEMBERG  <wl@gnu.org>
+
+	Add `refer' support.
+
+	* m.tmac: Include `refer-mm.tmac'.
+
+Fri Jan 28 10:26:29 2011  Werner LEMBERG  <wl@gnu.org>
+
+	Prepare `refer' support.
+
+	* m.tmac (\n[Rpe]): New register to control page eject status of the
+	`RP' macro.
+	(RP): Updated.
+	(ref@start-print): Move the trailing full stop in reference number
+	to...
+	(RS): This macro.
+
+	* groff_mm.man: Document `Rpe' register.
+
+Fri Jan 28 10:05:29 2011  Werner LEMBERG  <wl@gnu.org>
+
+	* mmroff.man, groff_mm.man: s/reference/cross reference/ where
+	appropriate.
+
+Wed Jan  5 15:05:47 2011  Werner LEMBERG  <wl@gnu.org>
+
+	Fix use of .DEVTAG-* macros.
+	Reported by Anton Shepelev <anton.txt@gmail.com>.
+
+	* m.tmac (misc@tag): Wrapper around .DEVTAG-* to compensate unwanted
+	vertical space.
+	(H): Use it.
+
+Mon Dec 27 09:39:20 2010  Werner LEMBERG  <wl@gnu.org>
+
+	* groff_mm.man: Fix indentation.
+
+Thu Jun 24 12:43:27 2010  Tadziu Hoffmann  <hoffmann@usm.uni-muenchen.de>
+
+	* m.tmac (misc@pop-nr): Fix assignment.
+	Reported as
+	http://lists.gnu.org/archive/html/groff/2010-06/msg00096.html
+
+Sat Jun  5 08:06:21 2010  Larry Jones <lawrence.jones@siemens.com>
+
+	* m.tmac (\*[BU]): Always define.
+
+Sat Jun  5 08:00:10 2010  Larry Jones <lawrence.jones@siemens.com>
+
+	Improve compatibility.
+
+	* m.tmac (}b, }f, }p): Define aliases for orthogonality with the
+	already available }t, }e, and }o for page headers.
+
+Wed Jun  2 16:03:39 2010  Larry Jones <lawrence.jones@siemens.com>
+
+	Fix .EOP handling and non-numeric format of \n[P].
+
+	* m.tmac (pg@header): Set `.af' temporarily to numeric format.
+	(pg@print-footer): Disable vertical traps for call to .EOP also.
+
+Wed Jun  2 16:03:39 2010  Larry Jones <lawrence.jones@siemens.com>
+
+	* m.tmac (toc@entry): Use MM page number (\nP).
+
+Sun May 30 07:14:15 2010  Larry Jones  <lawrence.jones@siemens.com>
+
+	* m.tmac (P, nP): Fix handling of short paragraphs.
+	Otherwise,
+
+	  .H 1 Bug
+	  .P
+	  one
+	  .P
+	  two
+	  .P
+	  three
+
+	results in:
+
+	  1.  Bug
+
+	  one two three
+
+	whereas it should, of course, produce:
+
+	  1.  Bug
+
+	  one
+
+	  two
+
+	  three
+
+Sat Jan  3 08:55:15 2009  Werner LEMBERG  <wl@gnu.org>
+
+	* groff_mm.man: Use new `x' table modifier for all tables which use
+	T{...T}.  This greatly improves formatting.
+
+Tue Feb  6 00:00:00 2007  Eric S. Raymond  <esr@snark.thyrsus.com>
+
+	* groff_mm.man: Typo fix.
+
+Sat Feb  3 00:00:00 2007  Eric S. Raymond  <esr@snark.thyrsus.com>
+
+	* groff_mm.man: Eliminate nonportable macro hackery in the
+	definition of T2 in favor or TBL tables.
+
+Fri Jan  5 14:35:35 2007  Werner LEMBERG  <wl@gnu.org>
+
+	Fix installation.  Reported by Jennifer Sayers.
+
+	* Makefile.sub (install, install_mm): Remove.
+	(install_bin, install_data): New targets.
+
+Sat Aug 12 23:33:45 2006  Nick Stoughton  <nick@msbit.com>
+
+	* m.tmac (P): Ignore P after H, as documented.
+
+Tue Apr 4 07:19:57 2006  Werner LEMBERG  <wl@gnu.org>
+
+	* groff_mm.man: Document strings TPh, TPeh, and TPoh.
+
+Wed Mar 29 06:58:24 2006  Werner LEMBERG  <wl@gnu.org>
+
+	* m.tmac (pg@print-footer): Disable vertical traps while emitting
+	the footer.  This fixes an endless loop caused by
+
+	  .S 27 59
+	  foo
+	  .SK
+
+	Problem reported by Bill Brelsford <k2di2@att.net>.
+
+	(LI): Remove superfluous line which sets number register `x' without
+	reason.  Problem reported by Morris Stern <mstern@mail.utexas.edu>.
+
+	(eq@check): Correctly flush labels to the right.
+	Problem reported by Morris Stern <mstern@mail.utexas.edu>.
+	Fix vertical positions of labels.
+
+	(ds@end): Emit pre-display space earlier.
+
+	* groff_mm.man: Document that only the last equation label of
+	.EQ/.EN blocks within .DS/.DE is printed.
+
+Tue Mar 28 14:00:06 2006  Werner LEMBERG  <wl@gnu.org>
+
+	. Hardwire first four font positions with R, I, B, and BI -- the
+	  documentation explicitly refers to this feature (cf. the `HF'
+	  string register).
+
+	. Don't use `%' register in numeric calculations because it is
+	  affected by `.af'.
+
+	Patches for both problems have been contributed by Nick Stoughton
+	<nick@usenix.org>.
+
+	* m.tmac: s/@language/@country/.
+	s/\n[%]/\n[P]/ where appropriate.
+	s/\fR/\f1/.
+	s/.ft R/.ft 1/.
+	s/\fI/\f2/.
+	s/.ft I/.ft 2/.
+	s/\fB/\f3/.
+	s/.ft B/.ft 3/.
+
+	* mse.tmac: s/@language/@country/.
+
+	* groff_mm.man (Fonts): New subsection.
+
+	* groff_mmse.man: Load `sv.tmac'.
+	Reformatted.
+
+	examples/README: Cleanups and updates.
+
+Mon Mar 27 15:44:24 2006  Werner LEMBERG  <wl@gnu.org>
+
+	* groff_mm.man: Completely revised and reformatted to use as many
+	man macros as possible.
+
+Thu Mar 2 09:12:06 2006  Werner LEMBERG  <wl@gnu.org>
+
+	* mse.tmac: Remove common Swedish strings and load sv.tmac instead.
+
+Sun Feb 26 13:57:13 2006  Claudio Fontana  <claudio@gnu.org>
+
+	* Makefile.sub: Add DESTDIR to install and uninstall targets
+	to support staged installations.
+
+Fri Nov 25 14:31:02 2005  Werner LEMBERG  <wl@gnu.org>
+
+	* mm/ms.cov (COVEND): Protect argument for `cov@print-abstract'
+	with doublequotes.  Reported by Fabrice Ménard
+	<menard.fabrice@wanadoo.fr>.
+
+Tue Oct 25 21:59:04 2005  Bob Diertens  <bobd@science.uva.nl>
+
+	* m.tmac (lix@print-line): Add parentheses to if-else clause to
+	fix logic.
+
+Thu May 26 08:23:40 2005  Werner LEMBERG  <wl@gnu.org>
+
+	* m.tmac: Load devtag.tmac.
+
+Mon May 16 00:00:00 CEST 2005  Keith Marshall <keith.d.marshall@ntlworld.com>
+
+	* mmroff.pl: Add space in shebang prototype for generated
+	conftest.sh script, conforming to portability recommendation in
+	autoconf docs.
+
+Wed Mar 16 06:56:02 2005  Larry Kollar  <kollar@alltel.net>
+
+	Add rudimentary support for grohtml.
+
+	* m.tmac (H): Call DEVTAG-NH and DEVTAG-EO-H.
+	(pg@enable-trap, pg@header): Do nothing for devhtml.
+
+Sun Mar 7 16:34:46 2004  Jeff Conrad <jeff_conrad@msn.com>
+
+	* m.tmac (S): Improve debug message.
+
+Wed Mar 05:38:57 2004  Joergen Haegg <jh@axis.com>
+
+	* Changed default value for Hy in manual to 0
+	* Check Hy at each new page
+
+Mon Mar 1 22:16:38 2004  Jeff Conrad <jeff_conrad@msn.com>
+
+	* m.tmac (S): Fix scaling indicator for vertical spacing.
+
+Tue Nov 05:14:45 2003  Joergen Haegg <jh@axis.com>
+
+	* another patch from ulrich lauther to fix the
+	  TOC up to 14 heading levels.
+
+Mon Oct 13:48:25 2003  Joergen Haegg <jh@axis.com>
+
+	* problem with more than 7 levels of headings fixed with
+	  patch from ulrich lauther.
+
+Wed Apr 06:42:35 2003  Joergen Haegg <jh@axis.com>
+
+	* the footer was not adjusted by VM due to a missing
+	  pg*extra-footer-size in the calculation of pg*last-pos
+
+Wed Apr 06:04:58 2003  Joergen Haegg <jh@axis.com>
+
+	* space adjustments in 4.MT to make it more like
+	  the original
+
+Sun Mar 21:45:10 2003  Joergen Haegg <jh@axis.com>
+
+	* removed error check i 4.MT, .AF is not mandatory anymore
+
+Sat Mar 21:56:57 2003  Joergen Haegg <jh@axis.com>
+
+	* cov*firm now defined only if arg to AF is non-empty
+	  That will also enable cov*default-firm from the mm locale-file
+	  to work.
+
+Sat Mar 21:05:29 2003  Joergen Haegg <jh@axis.com>
+
+	* added .ll in pg@set-env to initialize the
+	  header environment properly
+
+Wed Mar 19 23:02:16 2003  Werner LEMBERG  <wl@gnu.org>
+
+	* groff_mm.man: Some fixes from Robert D. Goulding
+	<goulding@Princeton.EDU>.
+
+Wed Sep 09:53:06 2002  Joergen Haegg <jh@axis.com>
+
+	* added implicit -mm to mmroff, it's now possible
+	  to use mmroff with or without -mm as argument.
+
+Thu Aug 08 00:31:00  Bob Diertens <bobd@science.uva.nl>
+
+	* m.tmac (VM): Add missing backslash.
+
+Fri Jun 10:37:58 2002  Joergen Haegg <jh@axis.com>
+
+	* added init@reset for LT-macros so .S works for letters
+
+Thu May 06:30:06 2002  Joergen Haegg <jh@axis.com>
+
+	* adding -T to VM for setting the total
+	  header and footer size.
+	* changing pg*extra-header-size unit from v to u in DS-size
+	  calculation
+
+Mon May 05:40:16 2002  Joergen Haegg <jh@axis.com>
+
+	* All lists now get an empty line before the list
+	  even if there is no empty lines between the items (bug in LB)
+
+Sat May 07:36:08 2002  Joergen Haegg <jh@axis.com>
+
+	* PIC is now drawn 1v higher, making it
+	  possible to put a picture at 0,0.
+	* Indentbug in P fixed, Pt=2 now behaves as it should
+
+Wed May 10:18:26 2002  Joergen Haegg <jh@axis.com>
+
+	* added L, W and O in groff_mm.man
+	* extra space in expression removed in EPIC
+	* EPIC can leftadjust with -L
+	* EPIC was drawing 1v down
+	* forgot to add mmse.tmac and mm.tmac to cvs
+
+Fri May 20:35:32 2002  Joergen Haegg <jh@axis.com>
+
+	* Clarified manual about INITR
+	* Added mm.tmac and mmse.tmac wrappers
+	* Fixed bug in mmroff so a .qrf-file always will be created
+	* .EQ mark was not correctly positioned anymore.
+	* changed SP to sp in DS/DE to further correct .EQ
+
+Sun Dec 9 00:00:00 2001 Werner LEMBERG  (wl@gnu.org)
+
+	* Makefile.sim, groff_mm.man, groff_mmse.man: Minor fixes.
+	* mmroff.man: This is a section 1 man page.
+	Minor fixes.
+	* Makefile.sub: Install mmroff.man in section 1.
+
+Wed Nov 28 00:00:00 2001 Werner LEMBERG (wl@gnu.org)
+
+	* m.tmac: Assure that the macro package is loaded only once.
+
+Wed Sep 5 00:00:00 2001 Werner LEMBERG (wl@gnu.org)
+
+	* m.tmac: Enable all warnings only if no -W or -w option is given on
+	  the command line (or rather, if only the default warnings are
+	  set).
+
+Mon Sep 3 00:00:00 2001 Werner LEMBERG (wl@gnu.org)
+
+	* groff_mm.man: Don't use .ne for TTY devices.
+
+Thu Jul 26 00:00:00 2001 Werner LEMBERG (wl@gnu.org)
+
+	* groff_mm.man: Start always a new line after end of sentence.  Add
+	  some compatibility info to the HF variable.
+
+Thu Jul 26 00:00:00 2001 Larry Jones (larry.jones@sdrc.com)
+
+	* m.tmac: Fix initialization of Hps1 and Hps2.
+
+Wed May 16 00:00:00 2001 Bruce Lilly (blilly@erols.com)
+
+	* m.tmac (TH): Fix incorrect error message.
+
+Thu Apr 12 00:00:00 2001 Ruslan Ermilov (ru@FreeBSD.org)
+
+	* groff_mm.man: Fixing some typos.
+
+Mon Mar 5 09:30:18 2001 Jörgen Hägg (jh@axis.com)
+
+	* S didn't reset to default point size
+	* (dummy line to force cvs update...)
+
+Sat Jan 06 10:30:00 2001 Werner LEMBERG (wl@gnu.org)
+
+	* Fixed assignment of page offset given as a command line argument.
+
+Fri Nov 17 05:34:17 2000 Jörgen Hägg (jh@axis.com)
+
+	* Renamed tmac.m and tmac.mse to m.tmac and mse.tmac
+
+Thu Sep 14 05:52:48 2000 Jörgen Hägg (jh@axis.com)
+
+	* New Changelog-format, it will show changes better.
+	  Easier for other to use. (Somehow I didn't really
+	  understand why the e-mail address was supposed to be
+	  'jh at axis.com' in the Changelog. :-)
+
+Mon Aug 28 00:00:00 2000 Bruno Haible (haible at clisp.cons.org)
+
+	* Makefile.sub: New target 'all', makes all prerequisites of
+	'install'.
+
+Thu Sep 7 06:17:42 2000 Jörgen Hägg (jh at axis.com)
+
+	* version 2.0
+	* Had to do something about my version numbering.
+	  The main CVS archive was not in sync with mine.
+	  So, now it is 2.0. :-)
+
+Sat Jun 17 23:00:00 2000 Eli Zaretskii (eliz@is.elta.co.il)
+
+	* Makefile.sim (.man.n): Replace `;' with `|', since DOS/Windows
+	  path lists use the semicolon as a separator.
+
+Sun Jun 4 21:39:00 2000 Kaneda Hiroshi (vanitas at ma3.seikyou.ne.jp)
+
+	* Fixing a lot of typos in groff_mm.man
+
+Tue Mar 7 00:00:00 2000 OKAZAKI Tetsurou (okazaki at be.to)
+
+	* Makefile.sub: Use $(INSTALL_SCRIPT) for script files.
+
+Sun Jan 30 22:52:20 2000 Jörgen Hägg (jh at axis.com)
+
+	* version 1.34
+	* Changed the version number in the CVS repository
+	* MC had a bug in column calculation, (thanks to T. Kurt Bond)
+
+Fri Sep 3 07:33:14 1999 Jörgen Hägg (jh at axis.com)
+
+	* version 1.33
+	* At last! I finally tracked down the PGFORM bug!
+	  It didn't setup the @pl, @ll and @po as it should, now it does.
+	* mgm_ref/mgm_roff renamed to mmroff [-x]
+	* fixed y2k-bug in \*[DT]
+	* \n[cov*year] removed, hope no one used that.
+	* ISODATE added with Iso as command line flag
+		(iso-date suggested by Paul Eggert)
+	* Added ISODATE to tmac.mse and removed local settings
+	  of new-date.
+	* INITI syntax changed and enhanced. Index processing is now
+	  done with mmroff.
+	* A few examples has been added, new subdirectory 'examples'.
+	* Fixed bug with SETR, header references are now only saved
+	  when Ref > 0
+	* Problem with register H1h fixed
+	* Added test for missing abstract in 4.MT
+	* Updated Makefile.sub, using tmac_m_prefix.
+
+Mon Mar 15 22:22:42 1999 Jörgen Hägg (jh at axis.com)
+
+	* OK, let's release this as a beta, 1.33 will be better. :-)
+	* version 1.32
+	* fixed .el-error
+	* Added number variable Hss
+	* Changed Hps1 and Hps2 to units
+	* added hd*h1-text to be used in user defined macro TP.
+	* -U needed for SETR (I really need 'mv', 'echo', 'rm'
+	  and 'test' builtin!)
+	* Rewritten the reference system, SETR now prints to stderr
+	  if the number register Qrf > 0. Store in the filename
+	  that is the argument to .INITR
+	  The old behaviour is returned if number register Initr > 0.
+	* Fixed bug with List of XXXX, long lines messed up the result.
+	* added number register H1dot.
+	* added string variable H1txt
+	* added string variable Tcst
+	* added number register Dsp.
+	* added alias APPX for user-defined appendix title.
+	* added string variable Apptxt
+	* added H1h for use in TP in headers
+	* added macro EPIC
+	* added macro PIC (safe replacement for PSPIC)
+	* fixed Hps-bug, should be 1, not 1v.
+	* fixed bug with APPSK, variable not set.
+
+Wed Feb 4 15:46:04 1998 Jörgen Hägg (jh at axis.se)
+
+	* version 1.31
+	* .LI will now honor a space mark.
+	* Another fix for .AU to let it be used without arguments.
+	* uninitialized eq*label fixed
+
+Fri Sep 6 07:13:07 1996 Jörgen Hägg (jh at axis.se)
+
+	* version 1.30
+	* This is more like a beta-release, bugs might pop up. :-)
+	* last line in TOC was not correctly terminated (missing .br)
+	* changed the indentation for displays, it will now
+	  indent to the current indent, not the one at the definition
+	  of the display.
+	* Equation marks should now work better, indentation also.
+	* included these bug fixes from Larry Jones:
+	*   The documentation for the argument to .AS was incorrect for MT 4.
+	*   \*(EM should be a double-dash for nroff.
+	*   \nS is in points, not units.
+	*   If \nO isn't set, the default page offset should be .75i for nroff
+		and .963i for troff.
+	*   .S D should set the point size to \nS, not 10.
+	*   .S was setting the vertical spacing based on the old point size
+		instead of the new point size.
+	*   Got rid of a spurious .br that prevented run-in headings from
+		working.
+	*   Reset the .SP counters in pg@header so that spacing on one page
+		won't affect spacing on subsequent pages.
+	*   Allow .AU and .AF with no arguments (real mm does, even though it
+		isn't documented).
+	*   Do .init@reset first thing to initialize the default environment.
+	*   For MT 4, the title should be 4 points larger than the default size,
+		not 12 point.
+	*   The cover environment needs to be initialized.
+	*   Printing the abstract on the first page needs to be controlled by
+		the .AS argument.
+	*   Heading eject should be suppressed if the heading immediately
+		follows the first page stuff (title, author, etc.).
+	*   support for table of contents numbering style (.nr Oc)
+	*   changes the troff empty line height from .25v to .5v
+	*   fixed section page numbering
+	*   fixed a really nasty bug in footnotes that could cause you
+		to lose the page footer completely if the very first
+		footnote on the page occurred at just the wrong place
+
+
+Wed May 15 07:39:32 1996 Jörgen Hägg (jh at axis.se)
+
+	* version 1.29
+	* Syntax and scaling error fixed, (thanks to Frazer Williams)
+	* DF/DE will now do a line-break before printing the display.
+	* Updated the manual for TB,FG,EX and EC.
+	* Added support for the ms- (and mgs-)macro .IX
+	* Added indexmacro IX, INITI, IND and INDP, support for
+	  TXIND, TYIND and TZIND.
+	* PGFORM will now always really reset to the default
+	  values for unspecified arguments.
+	* Floating displays tested and repaired, it should
+	  now (finanlly) work exactly as the original (I hope :-).
+	* Should now set year correctly even after 2000.
+	* Stupid bug in PGNH fixed.
+	* Corrected line length for figure caption (FG and friends)
+
+
+Mon Apr 24 07:37:52 1995 Jörgen Hägg (jh at axis.se)
+
+	* version 1.28
+	* Added AVL (AV without date)
+	* Fixed nroff scaling for W and L.
+	* Added support for register E and roman/bold
+	  for all Subject/Date/From strings.
+	* Added support for register C (1-4), (for DRAFTs and other types)
+	* Will protest if not used with groff.
+	* Change of the internal number registers @ps and @vs, they
+	  are now in units, and is set in the new macros .@ps and .@vs.
+	  @ps and @vs is now corrected to the real point and vertical size.
+	* Macro EQ has now correct pointsize.
+	* Figures should now get the right page number in the index.
+	* User-defined macros can now be defined for list of
+	  figures, tables, equations and exhibits (T{X,Y}{FG,TB,EC,EX}.
+	* Space may be omitted between prefix and mark in automatic lists (.AL)
+	  See .LI
+
+Tue Jan 10 07:51:37 1995 Jörgen Hägg (jh at axis.se)
+
+	* version 1.27
+	* Manual updated
+	* More bugs fixed in DS/DF
+	* added alias for :g
+	* LC can now be used without argument (as the manual says. :-)
+	* Register :R now supported (RS/RF)
+	* footnote line was printed even if there was no room for
+	  any footnotes. Fixed.
+	* Fixed 1C so that it can be used without page eject
+	* Added support for EOP (TPs twin)
+	* Hyphenation turned off by default. (Hy == 0)
+
+Fri Nov 4 08:14:50 1994 Jörgen Hägg (jh at axis.se)
+
+	* version 1.25
+	* DS/DF separated and several bugs fixed. Watch out for new though. :-)
+	* string DT was emptied by mistake in the previous version.
+	* RD made prettier.
+	* typo in AV and let@print-head fixed.
+
+Mon Oct 31 08:19:24 1994 Jörgen Hägg (jh at axis.se)
+
+	* version 1.24
+	* Bug fixed and format extended in .SG and .FC.
+	* date is always printed unless .ND without argument is used.
+	  (I wonder what's the right thing to do, this might change.)
+	* Swedish letter-standards implemented in tmac.mse.
+	* .ND can be used to turn off the date. (Empty argument)
+
+Mon Oct 31 08:14:09 1994 Jörgen Hägg (jh at axis.se)
+
+	* version 1.23
+	* An attempt to get in sync with RCS. This is the distributed
+	  version.
+
+Thu Oct 27 08:29:34 1994 Jörgen Hägg (jh at axis.se)
+
+	* version 1.22
+	* (version 1.21 lost... :-)
+	* Letter macros added!!
+	* The following macros are added:
+	* AV, FC, IA ,IE, LT, LO, NE, NS, SG, WA, WE
+	* nP also added.
+
+Tue Dec 14 16:26:36 1993 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.20
+	* spelling-corrections
+	* Makefile.sim updated to the correct version, and a uninstall
+	  target added.
+	* @cur-lib removed from tmac.m (obsolete)
+	* fixed check for references i .TC, .RP now resets the flag correctly.
+	* floating display should now be printed if there is space.
+	* first version using RCS. I've been avoiding version control until it
+	  became necessary.
+	* WC WD now works in two-column-mode.
+
+Tue Sep 7 08:37:00 1993 Jörgen Hägg (jh at efd.lth.se)
+
+	* version 1.19
+	* .lt is called in the header for .TP also.
+	* Variable Pgps added to control the header and footer point-size.
+	* Error-text printed with .APP removed.
+	* Error with .FG, .TB, .EC and .EX indentation fixed.
+	* header and footer line-length is not changed by MC or 2C.
+	* Default for page-length and page-offset is now taken from
+	  \n[.p] and \n[.o].
+	* Argument to .ab (abort) is supplied.
+	* Argument to .1C added.
+	* Argument to .PGFORM added.
+	* RP/RS/RF totally rewritten. Should work with 2C now.
+
+Fri Apr 23 10:37:25 1993 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.18
+	* Height of display is now more exactly calculated.
+	* tabs and blankspaces where wrong in .VERBON.
+	* error in manual for escape-character in VERBON.
+	* Makefile.sub: installed tmac.m as tmac.m and tmac.mse
+	* Installation of tmac.mse now supports TMAC_M.
+	* bug with N fixed.
+
+Mon Apr 5 09:36:01 1993 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.17
+	* MULB preserves size.
+	* bug in VERBON fixed, causing strange errors.
+	* section-page footer fixed.
+	* added support for numberregister S
+	* fixed bug with floating displays which made floats to
+	  generate space on a page, but broke page anyway.
+	* end-of-page trap reinstalled.
+
+Mon Mar 29 10:53:13 1993 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.16
+	* MUL* now use the previous font and family.
+	* extra blank page at end-of-text eliminated.
+
+Mon Mar 8 10:27:47 1993 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.15
+	* Didn't restore pointsize to current size in .H.
+	* B1/B2 did not work with indent. (MULE and friends)
+	* fixed old problem with trailing empty pages.
+
+Fri Mar 5 15:20:49 1993 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.14
+	* Sigh. Amazing what a missing \} can do. If the string
+	  HP was set, then all text disappeared...
+
+Fri Mar 5 14:12:43 1993 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.13
+	* Fixed bug with handling ps/vs in .H. (again, sigh... )
+
+Wed Mar 3 09:21:20 1993 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.12
+	* Line-break added to PGFORM.
+	* added more features to VERBON
+	* .S is not used anymore in H, it caused confusion with
+	  normal text, but it will still set .vs.
+	* SK was broken, will now produce the requested number of
+	  empty pages.
+	* dotted lines added to LIST OF FIGURES and friends.
+	  Also better linespacing.
+
+Mon Feb 22 12:41:06 1993 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.11
+	* missing left-parenthesis gave ") .sp" when N=4.
+	* N=4 removed user-specified header also.
+	* MOVE made linelength pageoffset wider than wanted.
+	* fixed (again) parenthesis in RP.
+
+Thu Jan 21 12:10:39 1993 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.10
+	* changed PROG_PREFIX to g in the manual-pages.
+	* Better check if new page is needed in .H, when Ej>0.
+	* Usage of variable Lsp now more complete.
+	* Space added in TOC when mark is equal to size.
+	* Usermacro HY moved after font-calulations.
+	* .S used instead of .ps, which will use .vs correct.
+	* Now possible to set Hps1/2 inside HX.
+	* .FD "" 1 is now fixed.
+	* section-page numbering bug fixed.
+	* several bugs in VERBON/OFF fixed.
+
+Tue Dec 8 16:43:15 1992 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.09
+	* N==4 gives no default header
+
+Sat Nov 21 14:28:20 1992 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.08
+	* Escape-character disabled between 
+	  VERBON/VERBOFF (turned on by an argument).
+	  Pointsize and fontchange also added as arguments.
+	* MULB, MULN and MULE added to get multicolumn output
+	  with different width.
+	* Number register N can now use 1-5.
+	* Register Sectp and Sectf added.
+	* Register P is now updated correctly for "section-page" numbering.
+
+Thu Nov 19 11:19:33 1992 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.07
+	* .OP fixed to eject a blank page if not odd.
+
+Fri Nov 13 09:46:09 1992 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.06
+	* Macro TL rewritten. TL depends now on a following .AU.
+	* NOTES updated.
+	* .lt is now used more frequent when linelength is changed.
+	* macro AST added.
+	* removed PH/EH/OH not needed in ?.MT.
+
+Wed Oct 28 14:35:43 1992 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.05
+	* .VM implemented.
+	* Possible bug in page heading fixed. Changed .sp to 'sp in HEADER.
+
+Thu Aug 20 13:56:31 1992 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.04
+	* page-break in .EQ moved.
+	* changed unit for footer-size and header-size from units to lines.
+	  Fixes problems with .S and page-breaks.
+	* \n[%] is now treated as a string, which makes it possible
+	  to assign new formats to it. Unfortunately, it was necessary
+	  to change the page-number-variable in GETPN to a string.
+	* Makefile.sub included. (Thank you, James)
+
+Thu May 7 16:14:10 1992 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.03
+	* Typo and centering in DS/DE fixed. 
+	  Even and odd pageheaders were reversed.
+	* LI: pad and mark-indent was lost in some earlier versions. Now fixed.
+	* fixed bug in reference to .FG, .TB, ...
+	* APP did not clear headercounters.
+	* Pointsize in titles is now only set at the beginning and
+	  when PH, PF, OH, OF, EH and EF are used.
+
+Thu May 6 16:01:35 1992 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.02
+	* OP fixed.
+
+Fri Mar 6 09:36:09 1992 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.01
+	* two .LI without text between should not be printed
+	  on the same row. Now fixed.
+	* figure titles and friends fixed, now possible with many .FG
+	  in a DS/DE. Didn't always position correctly in previous version,
+	  but is now always printed as it should.
+	* Makefile fixed for Ultrix.
+	* DS/DF could not handle empty arguments correct
+	* Missing .br i EQ added.
+
+Sat Jan 25 15:47:21 1992 Joergen Haegg (jh at efd.lth.se)
+
+	* version 1.00
+	* No betaversion anymore!
+	* Fixed headernumbers within appendixes.
+	* DS did not keep the same font as before DS.
+	* mmse did a line break.
+
+Fri Jan 24 14:38:16 1992 Joergen Haegg (jh at efd.lth.se)
+
+	* version 0.16
+	* bug in TC, multiple line headers did not wrap correctly.
+	* added support for mm/locale and mm/language_locale.
+	* cov*default-firm in locale sets name of firm in the MT covers.
+	* cov*location-xxxx in locale sets location xxxx to the contents
+	  of cov*location-xxxx. Used in the MT covers.
+	* hanging indent in lists fixed.
+	* use larger empty lines if .nroff is defined.
+	* macros, like .P, can now be used inside abstracts.
+	* .S do not reset indentation anymore.
+	* .RS aA now sets a string, not an integer.
+	* appendix with .APP or .APPSK added.
+
+Thu Nov 28 22:00:59 1991 Joergen Haegg (jh at efd.lth.se)
+
+	* version 0.15
+	* Fixed .AU in MT 0-3, added support for variable Au.
+	* Bug in the positioning of the foot-notes.
+	* lists not indented properly.
+	* Hps1 and Hps2 added.
+	* COVER had to have an argument.
+	* table of contents can now have multiline header.
+	* .HU now increments headingvariable H?
+	* added the inclusion of a locale file. 
+
+Sat Nov 23 14:40:17 1991 Joergen Haegg (jh at efd.lth.se)
+
+	* version 0.14
+	* bug when using -rO fixed.
+	* MT 1-4 added. 
+	* default is now MT 1
+	* .EQ/.EN can be used outside of .DS/.DE without complaints. But
+	  I don't recommend it. Neither does the DWB books.
+	* LI don't break lines now if arg too big.
+	* PGFORM did not reset indent.
+	* Added the numbervariable Hps.
+	* Rewritten and added MT 0-5 + "string".
+	* Added TM.
+	* Indent to AS added
+
+Wed Nov 6 15:18:40 1991 Joergen Haegg (jh at efd.lth.se)
+
+	* version 0.13
+	* ds*format nod defined if PS/PE is used without DS/DE.
+	* GETST added, fourth argument to EX, FG, TB and EC added.
+
+Mon Nov 4 13:38:01 1991 Joergen Haegg (jh at efd.lth.se)
+
+	* version 0.12
+	* Fixed C,D,P,+-size in .S
+
+Sun Jan 1 00:00:00 1991 Joergen Haegg (jh at efd.lth.se)
+	* Next version will have ChangeLog entries...
+	* Bug in INITR fixed.
+	* VERBON/VERBOFF added to include programlistings
+	* Bug in .DE fixed, addition overflow
+Sun Jan 1 00:00:00 1991 Joergen Haegg (jh at efd.lth.se)
+	* spelling error in month-names.
+	* WC should work now (no warranty :-)
+	* FD almost finished, some details missing.
+	* incorrect calculation of foot-notes fixed.
+	* DS/DE did not break page when the size was smaller than the paper
+	* Forward/backward referencesystem added. Se .INITR in README.
+	* mgmsw changed name to mgmse.
+Sun Jan 1 00:00:00 1991 Joergen Haegg (jh at efd.lth.se)
+	* embarrassing bug in .P fixed 
+	* .H did always eject page, now fixed.
+	* lost floating displays now found.
+	* accents added (from mgs)
+	* empty line in .EQ/.EN removed
+	* indentation in .TC corrected.
+	* indentation of DS/DE in lists fixed.
+	* .TB and friends now work inside DS/DE and outside.
+	* .WC partially implemented (WF and WD). Still working on it.
+	* .mso used if version>=1.02
+Sun Jan 1 00:00:00 1991 Joergen Haegg (jh at efd.lth.se)
+	* register P was not working.
+	* support for register Fg, Tb, Ec and Ex.
+	* list items was left on the previous page at a page break.
+	* tlevel in .TC now defaults to 2.
+	* string DT, EM and Tm supported.
+	* new macro: PGNH, see comments.
+	* bug in MOVE fixed.
+	* pagenumber in .TC fixed.
+	* a blank page was ejected if Ej==1, now fixed
+	* bug in floating display fixed (did break and SP wrong)
+	* bug in .SP fixed, no lines is now printed at top of page
+	* There are still problems with footnotes and displays in two column mode.
+Sun Jan 1 00:00:00 1991 Joergen Haegg (jh at efd.lth.se)
+	* register P added (same as %)
+	* bug in floating displays fixed
+	* MOVE	added
+	* MT	added, see comment below
+	* COVER/COVEND	added
+	* fixed bug in figure titles
+	* extended S, se comment below
+	* MT 0	added
+	* ms-cover added (COVER ms)
+Sun Jan 1 00:00:00 1991 Joergen Haegg (jh at efd.lth.se)
+	* bugs in RD and comb. fonts fixed
+Sun Jan 1 00:00:00 1991 Joergen Haegg (jh at efd.lth.se)
+	* HC	added
+	* Combined fonts (IB,BI...)
+	* HM	added
+	* RD	added
+	* OP	added
+	* TP&PX	supported
+	* warnings for unimplemented macros
+
+________________________________________________________________________
+
+Copyright 1991-2020 Free Software Foundation, Inc.
+
+Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved.
+
+Local Variables:
+fill-column: 72
+mode: change-log
+version-control: never
+End:
+vim:set autoindent textwidth=72: