path: root/contrib/mm/ChangeLog

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 M�nard
	<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 J�rgen H�gg (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 J�rgen H�gg (jh@axis.com)

	* Renamed tmac.m and tmac.mse to m.tmac and mse.tmac

Thu Sep 14 05:52:48 2000 J�rgen H�gg (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 J�rgen H�gg (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 J�rgen H�gg (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 J�rgen H�gg (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 J�rgen H�gg (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 J�rgen H�gg (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 J�rgen H�gg (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 J�rgen H�gg (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 J�rgen H�gg (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 J�rgen H�gg (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 J�rgen H�gg (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 J�rgen H�gg (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 J�rgen H�gg (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 J�rgen H�gg (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 J�rgen H�gg (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
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