===================================================================
RCS file: /cvs/mandoc/TODO,v
retrieving revision 1.304
retrieving revision 1.328
diff -u -p -r1.304 -r1.328
--- mandoc/TODO	2020/06/24 12:09:29	1.304
+++ mandoc/TODO	2023/08/08 15:58:40	1.328
@@ -1,6 +1,6 @@
 ************************************************************************
 * Official mandoc TODO.
-* $Id: TODO,v 1.304 2020/06/24 12:09:29 schwarze Exp $
+* $Id: TODO,v 1.328 2023/08/08 15:58:40 schwarze Exp $
 ************************************************************************
 
 Many issues are annotated for difficulty as follows:
@@ -33,6 +33,48 @@ Obviously, as the issues have not been solved yet, the
 are mere guesses, and some may be wrong.
 
 ************************************************************************
+* assertion failures
+************************************************************************
+
+- .if n .ce in the middle of .TS data
+  afl case f1/id:000103,sig:06,src:009024+009105,op:splice,rep:2 (jes@)
+  While roff_parseln() prevents .ce and similar requests in the middle
+  of a tbl, the guard is no longer effective when the .ce is wrapped
+  in a roff block, for example a conditional.  The resulting assertion
+  has never been seen in any real-world manual page.
+  This is too dangerous to fix before release because it requires
+  reorganizing the very delicate internals of roff_parseln(),
+  which risks causing more severe bugs.
+  loc * exist *** algo *** size * imp *
+
+
+************************************************************************
+* bugs: invalid output
+************************************************************************
+
+- wrong number of layout columns in tbl(7) code generated by -T man
+  https://savannah.gnu.org/bugs/?57720
+  The reason likely is that tbl(7) does not support the -Bl -column
+  feature of not explicitly specifying the last table column.
+  loc **  exist *  algo **  size *  imp ***
+
+- eqn(7) delimiters cause conditional lines to misbehave
+  nabijaczleweli 8 Sep 2021 15:24:48 +0200
+  loc *  exist ***  algo ***  size *  imp *
+
+- roff.c, roff_expand() should not remove blanks before comments
+  to Oliver Corff, Sep 7, 2021
+  loc *  exist *  algo *  size *  imp *
+  but watch out for regressions in the high-level parsers
+  maybe it should not even remove comments? - consider T{\"
+
+- tag.c, tag_put() should not put ASCII_HYPH into the tag file,
+  which happens when the tag contains "-" on the input side
+  weerd@ 28 Sep 2021 12:44:07 +0200
+  loc *  exist *  algo *  size *  imp ***
+
+
+************************************************************************
 * missing features
 ************************************************************************
 
@@ -99,10 +141,24 @@ are mere guesses, and some may be wrong.
   later handling because they can for example be used in macro names.
   So they may need handling after roff(7) processing.
   pointed out by John Gardner 23 Jun 2020 18:28:08 +1000
+  more info from John Gardner 29 Jun 2020 19:54:04 +1000
   loc **  exist **  algo **  size **  imp *
 
+- many missing features used in old groff_char(7),
+  some can possibly be supported
+  kamil at netbsd 12 Nov 2020 17:27:09 +0100 + reply
+
+- \s with arbitrary arg delimiters as already supported for other escapes
+  found following jmc@'s mail 28 Apr 2021 18:31:41 +0100
+  loc *  exist *  algo *  size *  imp *
+
 --- missing mdoc features ----------------------------------------------
 
+- support mixed case for section names
+  also, first section is not "NAME" should not appear more than once per page
+  Alejandro Colomar 28 Apr 2023 16:57:49 +0200
+  loc * exist * algo * size * imp ***
+
 - .Sh and .Ss should be parsed and partially callable, see groff_mdoc(7)
   reed at reedmedia dot net Sat, 21 Dec 2019 17:13:07 -0600
   loc **  exist **  algo **  size **  imp *
@@ -175,6 +231,13 @@ are mere guesses, and some may be wrong.
 
 --- missing man features -----------------------------------------------
 
+- MANWIDTH
+  Markus Waldeck <waldeck at gmx dot de> 9 Jun 2015 05:49:56 +0200
+  Laura Morales <lauretas at mail dot com> 26 Apr 2018 08:15:55 +0200
+  Kamil Rytarowski <kamil at netbsd> 13 Nov 2020 00:19:36 +0100
+  patch from Kamil 13 Nov 2020 22:37:07 +0100
+  loc *  exist *  algo *  size *  imp *
+
 - groff_www(7) .MTO and .URL
   These macros were used by the GNU grep(1) man page.
   The groff_www(7) manual page itself uses them, too.
@@ -239,8 +302,34 @@ are mere guesses, and some may be wrong.
 
 --- missing misc features ----------------------------------------------
 
+- use the default volume headers for sections with suffixes
+  certainly affects man(7); possibly mdoc(7)?; and also groff(1)
+  Alejandro Colomar 21 Aug 2022
+
+- conisder whether man(1) fallback code in main.c/fs_*() can find files
+  like man3c/fopen.3c (illumos, Solaris) and man3p/fopen.3p (POSIX)
+  discussed with Robert Mustacchi 21 Sep 2021 10:39:40 -0700
+  loc *  exist *  algo **  size *  imp **
+
+- let makewhatis(8) follow symbolic links to dirs below READ_ALLOWED_PATH
+  this may be feasible using fts_set(FTS_FOLLOW)
+  mail to sternenseemann 19 Aug 2021 19:11:50 +0200
+  loc *  exist **  algo **  size *  imp **
+
+- tag.c, tag_put() and callers like man_validate.c, check_tag()
+  should not mistake "\-" as a word-ending escape sequence but
+  instead translate it to plain "-" in the tag name
+  weerd@ 28 Sep 2021 12:44:07 +0200
+  loc **  exist *  algo *  size *  imp ***
+
+- handle Unicode letters in tags in both HTML and terminal output
+  thread "section headers with diacritics" starting with
+  Mario Blaettermann 24 Mar 2022 18:13:23 +0100
+  loc **  exist *  algo *  size *  imp **
+
 - -T man does not handle eqn(7) and tbl(7)
   Stephen Gregoratto 16 Feb 2020 01:28:07 +1100
+  also https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=901636
   loc **  exist **  algo **  size ***  imp **
 
 - man -ks 1,8 route; kn@ Jul 13, 2018 orally
@@ -317,6 +406,10 @@ are mere guesses, and some may be wrong.
 - check features of the Slackware man.conf(5) format
   Carsten Kunze  Wed, 11 Mar 2015 17:57:24 +0100
 
+- look at http://www.snake.net/software/troffcvt/  (troff to HTML)
+  mentioned by Oliver Corff  22 Jan 2021 01:36:49 +0100
+
+
 ************************************************************************
 * formatting issues: ugly output
 ************************************************************************
@@ -375,6 +468,10 @@ are mere guesses, and some may be wrong.
   reminded by jmc@  Thu, 23 Sep 2010 18:13:39 +0059
   loc *  exist **  algo ***  size *  imp ***
 
+- the man(7) single-font macros (e.g. .B) use .itc,
+  so ".B foo\c" followed by "bar" prints "bar" in bold
+  gbranden@ Sun, 5 Jun 2022 18:08:46 -0500
+
 - a line starting with "\fB something" counts as starting with whitespace
   and triggers a line break; found in audio/normalize-mp3(1)
   This will become easier once escape sequences are represented
@@ -396,10 +493,46 @@ are mere guesses, and some may be wrong.
     add a new <</Type /Font>> block to the PDF files with /BaseFont /Courier
     and change the /Name from /F0 to the new font (/F5 (?)).
   re-reported by tb@ Mon, 16 Mar 2015 16:47:21 +0100
-  loc *  exist **  algo **  size *  imp **
+  loc **  exist **  algo **  size *  imp **
 
 --- HTML issues --------------------------------------------------------
 
+- .Nm without an argument and .Bx cause premature </pre>
+  Nab Sun, 5 Jun 2022 18:30:09 +0200
+
+- .Aq Mt could set and reset "white-space: nowrap";
+  Check whether other enclosure macros could profit from similar handling,
+  or whether that is covered by Unicode line-breaking classes WJ, ZW, GL, ZWJ.
+  John Gardner 25 Mar 2022 04:44:27 +1100
+
+- make the HTML scaffolding customizable with -O skip=...
+  mail to Oliver Corff  3 Jun 2021 17:28:02 +0200
+  more feedback from Oliver  3 Jun 2021 18:27:56 +0200
+  more feedback from Oliver  3 Jun 2021 23:37:18 +0200
+  would also be useful for
+  https://github.com/gbdev/rgbds-www/blob/master/
+  maintainer/support/man_postproc.awk
+
+- .Bd -unfilled should not use monospaced font
+  anton@  4 Mar 2021 08:19:35 +0100
+  loc **  exist *  algo *  size *  imp **
+
+- HTML formatting of .nf should avoid <br/>,
+  even when input lines start with whitespace,
+  and not close and re-open <pre> on .P
+  my mail to ports@ 27 Jun 2021 16:09:20 +0200
+  reported again by Mohamed Akram 25 Jun 2022 16:28:18 +0000
+  loc **  exist **  algo *  size *  imp **
+
+- tbl(7) HTML output does not implement column width specifications
+  reported by Ted Bullock 11 Jan 2022 16:00:44 -0700
+  loc *  exist *  algo ?  size ?  imp *
+
+- link from flags in the SYNOPSIS to their descriptions
+  https://github.com/gbdev/rgbds-www/blob/master/
+  maintainer/support/man_postproc.awk
+  loc *  exist *  algo **  size *  imp *
+
 - get rid of the last handful of style= attributes such that
   Content-Security-Policy: can be enabled without unsafe-inline
   suggested by bentley@  Nov 10, 2019 at 06:02:49AM -0700
@@ -422,19 +555,18 @@ are mere guesses, and some may be wrong.
   does this affect other characters, other source macros...?
   Jackson Pauls  29 Aug 2017 16:56:27 +0100
 
-- The tables used to render the three-part page headers actually force
-  the width of the <body> to the max-width given for <html>.
-  Not yet sure how to fix that...
-  Observed by an Anonymous Coward on undeadly.org:
-  http://undeadly.org/cgi?action=article&sid=20140925064244&pid=1
-  loc *  exist *  algo **  size *  imp ***
-
 - generate <img> tags in HTML
   idea from florian@  Tue, 7 Apr 2015 00:26:28 +0000
   may be possible to implement with .Lk img://something.png alt_text
 
 - check https://github.com/trentm/mdocml
 
+--- CSS issues ---------------------------------------------------------
+
+- use flexbox for .Bl-tag instead of the fragile float/clear mechanism
+  John Gardner 25 Mar 2022 04:44:27 +1100
+
+
 ************************************************************************
 * formatting issues: gratuitous differences
 ************************************************************************
@@ -480,6 +612,10 @@ are mere guesses, and some may be wrong.
   reported again by Nicolas Joly Thu, 1 Mar 2012 13:41:26 +0100 via wiz@ 5 Mar
   reported again by Franco Fichtner Fri, 27 Sep 2013 21:02:28 +0200
   reported again by Bruce Evans Fri, 17 Feb 2017 21:22:44 +0100 via bapt@
+  https://reviews.freebsd.org/D35245
+  even groff_mdoc(7) uses this: Nab Sun, 5 Jun 2022 22:16:37 +0200
+  When implementing this, try to avoid breaking existing manuals,
+  or at least fix them: Jan Stary Sun, 5 Jun 2022 22:48:05 +0200
   loc ***  exist ***  algo ***  size **  imp ***
   An easy partial fix would be to just skip the first word if it starts
   with a dot, including any following white space, when measuring.
@@ -506,6 +642,15 @@ are mere guesses, and some may be wrong.
 * warning issues
 ************************************************************************
 
+- shorten/simplify error messages for usage errors
+  To: deraadt@ 25 Oct 2020 23:37:01 +0100
+  loc **  exist *  algo *  size **  imp ***
+
+- warn about output lines exceeding 80 characters
+  Alejandro Colomar Aug 22, 2022
+  not trivial because -T lint does not call any formatter
+  loc ***  exist *  algo **  size **  imp **
+
 - warn about duplicate .Sh/.Ss heads
   gre(4): Rename duplicate sections 20 Apr 2018 15:27:33 +0200
   loc *  exist *  algo *  size *  imp **
@@ -540,6 +685,10 @@ are mere guesses, and some may be wrong.
   of a text line, if it is likely intended to follow the preceding
   output without intervening whitespace, in particular after a
   macro line (from the mdoclint TODO)
+
+- report double .TH in man(7) as an ERROR and let the first win
+  kristaps@  28 Mar 2021 13:30:41 +0200
+  loc *  exist *  algo *  size *  imp *
 
 - makewhatis -p complains about language subdirectories:
   /usr/local/man//ru: Unknown directory part