************************************************************************
* Official mandoc TODO.
-* $Id: TODO,v 1.148 2012/11/19 22:30:58 schwarze Exp $
+* $Id: TODO,v 1.179 2014/08/18 13:27:47 kristaps Exp $
************************************************************************
************************************************************************
* crashes
************************************************************************
-None known right now.
+- The abort() in bufcat(), html.c, can be triggered via buffmt_includes()
+ by running -Thtml -Oincludes on a file containing a long .In argument.
+ Fixing this will probably require reworking the whole bufcat() concept.
************************************************************************
* missing features
--- missing roff features ----------------------------------------------
-- roff.c should treat \n(.H>23 and \n(.V>19 in the pod2man(1)
- preamble as true, see for example AUTHORS in MooseX::Getopt.3p
- reported by Andreas Voegele <mail at andreasvoegele dot com>
- Tue, 22 Nov 2011 15:34:47 +0100 on ports@
-
- .ad (adjust margins)
.ad l -- adjust left margin only (flush left)
.ad r -- adjust right margin only (flush right)
.ad -- re-enable adjustment without changing the mode
Adjustment mode is ignored while in no-fill mode (.nf).
-- .it (line traps) occur in mysql(1), yasm_arch(7)
- generated by DocBook XSL Stylesheets v1.71.1 <http://docbook.sf.net/>
- reported by brad@ Sat, 15 Jan 2011 15:48:18 -0500
+- .fc (field control)
+ found by naddy@ in xloadimage(1)
+
+- .nr third argument (auto-increment step size, requires \n+)
+ found by bentley@ in sbcl(1) Mon, 9 Dec 2013 18:36:57 -0700
- .ns (no-space mode) occurs in xine-config(1)
reported by brad@ Sat, 15 Jan 2011 15:45:23 -0500
-- xloadimage(1) wants .ti (temporary indent), rep by naddy@
- reported again by bentley@ in nmh(1) Mon, 23 Apr 2012 13:38:28 -0600
- also uses .ce (center N lines) and .fc (field control)
-
- .ta (tab settings) occurs in ircbug(1) and probably gnats(1)
reported by brad@ Sat, 15 Jan 2011 15:50:51 -0500
+ also Tcl_NewStringObj(3) via wiz@ Wed, 5 Mar 2014 22:27:43 +0100
+
+- .ti (temporary indent)
+ found by naddy@ in xloadimage(1)
+ found by bentley@ in nmh(1) Mon, 23 Apr 2012 13:38:28 -0600
+
+- .while and .shift
+ found by jca@ in ratpoison(1) Sun, 30 Jun 2013 12:01:09 +0200
- \c (interrupted text) should prevent the line break
even inside .Bd literal; that occurs in chat(8)
+ also found in cclive(1) - DocBook output
+
+- \h horizontal move
+ found in cclive(1) DocBook output
+ Anthony J. Bentley on discuss@ Sat, 21 Sep 2013 22:29:34 -0600
+
+- \n+ and \n- numerical register increment and decrement
+ found by bentley@ in sbcl(1) Mon, 9 Dec 2013 18:36:57 -0700
+
+- \w'' width measurements
+ would not be very useful without an expression parser, see below
+ needed for Tcl_NewStringObj(3) via wiz@ Wed, 5 Mar 2014 22:27:43 +0100
- using undefined strings or macros defines them to be empty
wl@ Mon, 14 Nov 2011 14:37:01 +0000
because libmdoc does not yet use mandoc_getarg().
Also check what happens in plain text, it must be identical to \e.
+- .Bd -centered implies -filled, not -unfilled, which is not
+ easy to implement; it requires code similar to .ce, which
+ we don't have either.
+ Besides, groff has bug causing text right *before* .Bd -centered
+ to be centered as well.
+
- .Bd -filled should not be the same as .Bd -ragged, but align both
the left and right margin. In groff, it is implemented in terms
of .ad b, which we don't have either. Found in cksum(1).
- have a blank `It' head for `Bl -tag' not puke
+- check whether it is correct that `D1' uses INDENT+1;
+ does it need its own constant?
+
- prohibit `Nm' from having non-text HEAD children
(e.g., NetBSD mDNSShared/dns-sd.1)
(mdoc_html.c and mdoc_term.c `Nm' handlers can be slightly simplified)
+- support translated section names
+ e.g. x11/scrotwm scrotwm_es.1:21:2: error: NAME section must be first
+ that one uses NOMBRE because it is spanish...
+ deraadt tends to think that section-dependent macro behaviour
+ is a bad idea in the first place, so this may be irrelevant
+
- When there is free text in the SYNOPSIS and that free text contains
the .Nm macro, groff somehow understands to treat the .Nm as an in-line
macro, while mandoc treats it as a block macro and breaks the line.
--- missing man features -----------------------------------------------
-- groff an-ext.tmac macros (.UR, .UE) occur in xine(5)
- reported by brad@ Sat, 15 Jan 2011 15:45:23 -0500
- also occur in freeciv-client(6) freeciv-server(6) freeciv-modpack(6)
- reported by bentley@ Tue, 30 Oct 2012 01:05:57 -0600
-
- -T[x]html doesn't stipulate non-collapsing spaces in literal mode
--- missing tbl features -----------------------------------------------
-- implement basic non-parametric .de to support e.g. sox(1)
- reported by naddy@ Sat, 16 Oct 2010 23:51:57 +0200
- *** sox(1) still doesn't work, tbl(1) errors need investigation
+- look at the POSIX manuals in the books/man-pages-posix port,
+ they use some unsupported tbl(7) features.
+
+- investigate tbl(1) errors in sox(1)
+ see also naddy@ Sat, 16 Oct 2010 23:51:57 +0200
- allow standalone `.' to be interpreted as an end-of-layout
delimiter instead of being thrown away as a no-op roff line
--- missing misc features ----------------------------------------------
+- italic correction (\/) in PostScript mode
+ Werner LEMBERG on groff at gnu dot org Sun, 10 Nov 2013 12:47:46
+
+- When makewhatis(8) encounters a FATAL parse error,
+ it silently treats the file as formatted, which makes no sense
+ at all for paths like man1/foo.1 - and which also contradicts
+ what the manual says at the end of the description.
+ The end result will be ENOENT for file names returned
+ by mansearch() in manpage.file.
+
+- makewhatis(8) for preformatted pages:
+ parse the section number from the header line
+ and compare to the section number from the directory name
+
+- Does makewhatis(8) detect missing NAME sections, missing names,
+ and missing descriptions in all the file formats?
+
- clean up escape sequence handling, creating three classes:
(1) fully implemented, or parsed and ignored without loss of content
(2) unimplemented, potentially causing loss of content
see textproc/mgdiff(1) for nice examples
(3) undefined, just output the character -> perhaps WARNING
-- The \t escape sequence is the same as a literal tab, see for example
- the ASCII table in hexdump(1) where
- .Bl -column \&000_nu \&001_so \&002_st \&003_et \&004_eo
- .It \&000\ nul\t001\ soh\t002\ stx\t003\ etx\t004\ eot\t005\ enq
- produces
- 000 nul 001 soh 002 stx 003 etx 004 eot 005 enq
- and the example in oldrdist(1)
+- kettenis wants base roff, ms, and me Fri, 1 Jan 2010 22:13:15 +0100 (CET)
+
+--- compatibility checks -----------------------------------------------
+
+- is .Bk implemented correctly in modern groff?
+ sobrado@ Tue, 19 Apr 2011 22:12:55 +0200
+
+- compare output to Heirloom roff, Solaris roff, and
+ http://repo.or.cz/w/neatroff.git http://litcave.rudi.ir/
+
+- look at AT&T DWB http://www2.research.att.com/sw/download
+ Carsten Kunze <carsten dot kunze at arcor dot de> has patches
+ Mon, 4 Aug 2014 17:01:28 +0200
- look at pages generated from reStructeredText, e.g. devel/mercurial hg(1)
These are a weird mixture of man(7) and custom autogenerated low-level
noted by stsp@ Sat, 24 Apr 2010 09:17:55 +0200
reminded by nicm@ Mon, 3 May 2010 09:52:41 +0100
+- look at pages generated from ronn(1) github.com/rtomayko/ronn
+ (based on markdown)
+
+- look at pages generated from Texinfo source by yat2m, e.g. security/gnupg
+ First impression is not that bad.
+
+- look at pages generated by pandoc; see
+ https://github.com/jgm/pandoc/blob/master/src/Text/Pandoc/Writers/Man.hs
+ porting planned by kili@ Thu, 19 Jun 2014 19:46:28 +0200
+
- check compatibility with Plan9:
http://swtch.com/usr/local/plan9/tmac/tmac.an
http://swtch.com/plan9port/man/man7/man.html
"Anthony J. Bentley" <anthonyjbentley@gmail.com> 28 Dec 2010 21:58:40 -0700
+- check compatibility with the man(7) formatter
+ https://raw.githubusercontent.com/rofl0r/hardcore-utils/master/man.c
+
************************************************************************
* formatting issues: ugly output
************************************************************************
- a column list with blank `Ta' cells triggers a spurrious
start-with-whitespace printing of a newline
-- double quotes inside double quotes are escaped by doubling them
- implement this in mdoc(7), too
- so far, we only have it in roff(7) and man(7)
- reminded by millert@ Thu, 09 Dec 2010 17:29:52 -0500
-
- In .Bl -column,
.It Em Authentication<tab>Key Length
ought to render "Key Length" with emphasis, too,
the right solution, it sends mandoc into an endless loop.
reported by Nicolas Joly Sat, 17 Nov 2012 11:49:54 +0100
+- global variables in the SYNOPSIS of section 3 pages
+ .Vt vs .Vt/.Va vs .Ft/.Va vs .Ft/.Fa ...
+ from kristaps@ Tue, 08 Jun 2010 11:13:32 +0200
+
- in enclosures, mandoc sometimes fancies a bogus end of sentence
reminded by jmc@ Thu, 23 Sep 2010 18:13:39 +0059
+- formatting /usr/local/man/man1/latex2man.1 with groff and mandoc
+ reveals lots of bugs both in groff and mandoc...
+ reported by bentley@ Wed, 22 May 2013 23:49:30 -0600
+
+--- PDF issues ---------------------------------------------------------
+
+- PDF output doesn't use a monospaced font for .Bd -literal
+ Example: "mandoc -Tpdf afterboot.8 > output.pdf && pdfviewer output.pdf".
+ Search the text "Routing tables".
+ Also check what PostScript mode does when fixing this.
+ reported by juanfra@ Wed, 04 Jun 2014 21:44:58 +0200
+
+--- HTML issues --------------------------------------------------------
+
+- <dl><dt><dd> formatting is ugly
+ hints are easy to find on the web, e.g.
+ http://stackoverflow.com/questions/1713048/
+ see also matthew@ Fri, 18 Jul 2014 19:25:12 -0700
+
+- consider whether <var> can be used for Ar Dv Er Ev Fa Va.
+ from bentley@ Wed, 13 Aug 2014 09:17:55 -0600
+
+- check https://github.com/trentm/mdocml
+
************************************************************************
* formatting issues: gratuitous differences
************************************************************************
is just "o\bo".
see for example OpenBSD ksh(1)
+- In .Bl -enum -width 0n, groff continues one the same line after
+ the number, mandoc breaks the line.
+ mail to kristaps@ Mon, 20 Jul 2009 02:21:39 +0200
+
- .Pp between two .It in .Bl -column should produce one,
not two blank lines, see e.g. login.conf(5).
reported by jmc@ Sun, 17 Apr 2011 14:04:58 +0059
as -width 7n, not -width 11n.
The same applies to .Bl -column column widths;
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
+ 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.
- The \& zero-width character counts as output.
That is, when it is alone on a line between two .Pp,
we want three blank lines, not two as in mandoc.
-- When .Fn arguments exceed one output line, all but the first
- should be indented, see e.g. rpc(3);
- reported by jmc@ on discuss@ Fri, 29 Oct 2010 13:48:33 +0100
- reported again by Nicolas Joly via wiz@ Sun, 18 Sep 2011 18:24:40 +0200
- Also, we don't want to break the line within the argument of:
- .Fa "chtype tl"
-
- Header lines of excessive length:
Port OpenBSD man_term.c rev. 1.25 to mdoc_term.c
and document it in mdoc(7) and man(7) COMPATIBILITY
operate in batch mode
in dig(1).
+************************************************************************
+* warning issues
+************************************************************************
+
+- check that MANDOCERR_BADTAB is thrown in the right cases,
+ i.e. when finding a literal tab character in fill mode,
+ and possibly change the wording of the warning message
+ to refer to fill mode, not literal mode
+ See the mail from Werner LEMBERG on the groff list,
+ Fri, 14 Feb 2014 18:54:42 +0100 (CET)
+
+- warn about "new sentence, new line"
+
+- mandoc_special does not really check the escape sequence,
+ but just the overall format
+
+- integrate mdoclint into mandoc ("end-of-line whitespace" thread)
+ from jmc@ Mon, 13 Jul 2009 17:12:09 +0100
+ from kristaps@ Mon, 13 Jul 2009 18:34:53 +0200
+ from jmc@ Mon, 13 Jul 2009 17:45:37 +0059
+ from kristaps@ Mon, 13 Jul 2009 19:02:03 +0200
+
+- -Tlint parser errors and warnings to stdout
+ to tech@mdocml, naddy@ Wed, 28 Sep 2011 11:21:46 +0200
+ wait! kristaps@ Sun, 02 Oct 2011 17:12:52 +0200
+
+- for system errors, use errno/strerror/warn/err
+
+************************************************************************
+* documentation issues
+************************************************************************
+
+- mention hyphenation rules:
+ breaking at letter-letter in text mode (not macro args)
+ proper hyphenation is unimplemented
+
+- talk about spacing around delimiters
+ to jmc@, kristaps@ Sat, 23 Apr 2011 17:41:27 +0200
+
+- mark macros as: page structure domain, manual domain, general text domain
+ is this useful?
+
+- mention /usr/share/misc/mdoc.template in mdoc(7)?
+
************************************************************************
* performance issues
************************************************************************
+- Why are we using MAP_SHARED, not MAP_PRIVATE for mmap(2)?
+ How does SQLITE_CONFIG_PAGECACHE actually work? Document it!
+ from kristaps@ Sat, 09 Aug 2014 13:51:36 +0200
+
Several areas can be cleaned up to make mandoc even faster. These are
- improve hashing mechanism for macros (quite important: performance)
Decide which formats should be recognized where.
Update both mdoc(7) and man(7) documentation.
Triggered by Tim van der Molen Tue, 22 Feb 2011 20:30:45 +0100
+
+- Consider creating some views that will make the database more
+ readable from the sqlite3 shell. Consider using them to
+ abstract from the database structure, too.
+ suggested by espie@ Sat, 19 Apr 2014 14:52:57 +0200
+
+************************************************************************
+* CGI issues
+************************************************************************
+
+ - Enable HTTP compression by detecting gzip encoding and filtering
+ output through libz.
+ - Sandbox (see OpenSSH).
+ - Enable caching support via HTTP 304 and If-Modified-Since.
+ - Allow for cgi.h to be overridden by CGI environment variables.
+ Otherwise, binary distributions will inherit the compile-time
+ behaviour, which is not optimal.
+ - Have Mac OSX systems automatically disable -static compilation of the
+ CGI: -static isn't supported.