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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: