************************************************************************
* Official mandoc TODO.
-* $Id: TODO,v 1.186 2014/10/25 01:01:12 schwarze Exp $
+* $Id: TODO,v 1.213 2015/08/29 15:10:28 schwarze Exp $
************************************************************************
Many issues are annotated for difficulty as follows:
- .fc (field control)
found by naddy@ in xloadimage(1)
loc ** exist *** algo * size * imp *
-
+
- .nr third argument (auto-increment step size, requires \n+)
found by bentley@ in sbcl(1) Mon, 9 Dec 2013 18:36:57 -0700
loc * exist * algo * size * imp **
- .ns (no-space mode) occurs in xine-config(1)
+ when implementing this, also let .TH set it
reported by brad@ Sat, 15 Jan 2011 15:45:23 -0500
loc *** exist *** algo *** size ** imp *
-- .ta (tab settings) occurs in ircbug(1) and probably gnats(1)
- reported by brad@ Sat, 15 Jan 2011 15:50:51 -0500
+- .ta (tab settings)
+ #1 most important issue naddy@ Mon, 16 Feb 2015 20:59:17 +0100
+ ircbug(1) 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
- loc ** exist *** algo ** size ** imp **
+ also posix2time(3) Carsten Kunze Mon, 1 Dec 2014 13:03:10 +0100
+ loc ** exist *** algo ** size ** imp ***
- .ti (temporary indent)
- found by naddy@ in xloadimage(1)
+ found by naddy@ in xloadimage(1) [devel/libvstr] vstr(3)
found by bentley@ in nmh(1) Mon, 23 Apr 2012 13:38:28 -0600
loc ** exist ** algo ** size * imp ** (parser reorg helps a lot)
-- .while and .shift
+- .while and .shift
found by jca@ in ratpoison(1) Sun, 30 Jun 2013 12:01:09 +0200
loc * exist ** algo ** size ** imp **
-- \c (interrupted text) should prevent the line break
- even inside .Bd literal; that occurs in chat(8)
- also found in cclive(1) - DocBook output
- loc ** exist *** algo ** size * imp *
-
- \h horizontal move
- found in cclive(1) DocBook output
- Anthony J. Bentley on discuss@ Sat, 21 Sep 2013 22:29:34 -0600
- loc ** exist ** algo ** size * imp ** (parser reorg helps a lot)
+ #2 most important issue naddy@ Mon, 16 Feb 2015 20:59:17 +0100
+ found in cclive(1) nasm(1) bogofilter(1) asciidoc/DocBook output
+ bentley@ on discuss@ Sat, 21 Sep 2013 22:29:34 -0600
+ naddy@ Thu, 4 Dec 2014 16:26:41 +0100
+ loc ** exist ** algo ** size * imp *** (parser reorg helps a lot)
- \n+ and \n- numerical register increment and decrement
found by bentley@ in sbcl(1) Mon, 9 Dec 2013 18:36:57 -0700
loc * exist * algo * size * imp **
+- \n(.$ macro argument count number register; ocserv(8) by autogen
+ found by sthen@ Thu, 19 Feb 2015 22:03:01 +0000
+ loc * exist ** algo * size * imp **
+
- \w'' improve 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
loc ** exist *** algo *** size * imp ***
+- \\ in high-level macro arguments
+ Currently, \\ is expanded in two situations:
+ 1) macro and string definition (roff.c setstrn())
+ 2) macro argument parsing (mandoc.c mandoc_getarg())
+ For user defined macros, the second happens in time because of ROFF_REPARSE.
+ But for standard high-level macros, it only happens after entering the
+ high level parsers, which is too late because the code doesn't get
+ back to roff.c roff_res() from that point. Because this requires
+ distinguishing requests, user-defined macros and standard macros
+ on the roff_res() level, it is hard to solve without the parser reorg.
+ Found by naddy@ in devel/cutils cobfusc(1) Mon, 16 Feb 2015 19:10:52 +0100
+ loc *** exist *** algo *** size ** imp *
+
- using undefined strings or macros defines them to be empty
wl@ Mon, 14 Nov 2011 14:37:01 +0000
loc * exist * algo * size * imp *
--- missing mdoc features ----------------------------------------------
-- fix bad block nesting involving multiple identical explicit blocks
- see the OpenBSD mdoc_macro.c 1.47 commit message
- loc * exist *** algo *** size * imp **
-
- .Bl -column .Xo support is missing
ultimate goal:
restore .Xr and .Dv to
from jmc@ Wed, 14 Jul 2010 18:10:32 +0100
loc * exist *** algo *** size ** imp **
-- \\ is now implemented correctly
- * when defining strings and macros using .ds and .de
- * when parsing roff(7) and man(7) macro arguments
- It does not yet work in mdoc(7) macro arguments
- 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.
is not safe, e.g. `.Bl -column .It Pf a b .' gives "ab."
but should give "ab ."
-- set a meaningful default if no `Bl' list type is assigned
- loc * exist * algo * size * imp ** (already done?)
-
-- have a blank `It' head for `Bl -tag' not puke
- loc * exist * algo * size * imp ** (already done?)
-
- check whether it is correct that `D1' uses INDENT+1;
does it need its own constant?
loc * exist ** algo ** size * imp **
--- missing tbl features -----------------------------------------------
+- horizontal lines in the layout still consume data cells
+ and can be mixed with actual data on the same table line
+ synaptics(4) found by tedu@ Mon, 17 Aug 2015 21:17:42 -0400
+ loc ** exist ** algo ** size ** imp ***
+
+- the "w" layout option is ignored
+ synaptics(4) found by tedu@ Mon, 17 Aug 2015 21:17:42 -0400
+ loc * exist * algo * size * imp **
+
+- the "s" layout column specifier is used for placement of data
+ into columns, but ignored during column width calculations
+ synaptics(4) found by tedu@ Mon, 17 Aug 2015 21:17:42 -0400
+ loc * exist ** algo *** size * imp **
+
+- support mdoc(7) and man(7) macros inside tbl(7) code;
+ probably requires the parser reorg and letting tbl(7)
+ use roff_node such that macro sets can mix;
+ informed by bapt@ that FreeBSD needs this.
+ loc *** exist ** algo *** size ** imp ***
+
- look at the POSIX manuals in the books/man-pages-posix port,
they use some unsupported tbl(7) features.
loc * exist ** algo ** size ** imp ***
suggested by bentley@ Tue, 14 Oct 2014 04:10:55 -0600
loc * exist ** algo * size * imp **
-- allow standalone `.' to be interpreted as an end-of-layout
- delimiter instead of being thrown away as a no-op roff line
- reported by Yuri Pankov, Wed 18 May 2011 11:34:59 CEST
- loc ** exist ** algo ** size * imp **
-
--- missing eqn features -----------------------------------------------
+- In a matrix, break the output line after each matrix line.
+ Found in the discussion at CDBUG 2015.
+ Suggested by Avi Weinstock.
+ loc * exist * algo * size * imp **
+
- The "size" keyword is parsed, but ignored by the formatter.
loc * exist * algo * size * imp *
Werner LEMBERG on groff at gnu dot org Sun, 10 Nov 2013 12:47:46
loc ** exist ** algo * size * imp *
-- 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.
- loc * exist * algo * size * imp **
+- change the default PAGER to more -Es and use the pager
+ even for apropos title line output; req by bapt@
+ loc * exist * algo * size * imp ***
- makewhatis(8) for preformatted pages:
parse the section number from the header line
- kettenis wants base roff, ms, and me Fri, 1 Jan 2010 22:13:15 +0100 (CET)
loc ** exist ** algo ** size *** imp *
+- Vsevolod Stakhov (FreeBSD) needs either a markdown output formatter
+ for mandoc -mdoc or a markdown to mdoc converter because they
+ have to maintain manuals needed both in markdown and mdoc format.
+ Look at the libsoldout (markdown -> whatever)
+ loc * exist * algo * size ** imp **
+
--- compatibility checks -----------------------------------------------
- is .Bk implemented correctly in modern groff?
http://swtch.com/plan9port/man/man7/man.html
"Anthony J. Bentley" <anthonyjbentley@gmail.com> 28 Dec 2010 21:58:40 -0700
+- check compatibility with COHERENT troff:
+ http://www.nesssoftware.com/home/mwc/source.php
+
- 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
+- revisit empty in-line macros
+ look at the difference between "Em x Em ." and "Sq x Em ."
+ Carsten Kunze Fri, 12 Dec 2014 00:15:41 +0100
+ loc *** exist *** algo *** size * imp **
+
+- a column list with blank `Ta' cells triggers a spurious
start-with-whitespace printing of a newline
+- In .Bl -column, .It a<tab>"b<tab>c"
+ shows the quotes in groff, but not in mandoc
+ loc * exist *** algo ** size * imp **
+
- In .Bl -column,
.It Em Authentication<tab>Key Length
ought to render "Key Length" with emphasis, too,
reminded by jmc@ Thu, 23 Sep 2010 18:13:39 +0059
loc * exist ** algo *** size * imp ***
+- a line starting with "\fB something" counts as starting with whitespace
+ and triggers a line break; found in audio/normalize-mp3(1)
+ loc ** exist * algo ** size * imp **
+
- 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
see also matthew@ Fri, 18 Jul 2014 19:25:12 -0700
loc * exist * algo ** size * imp ***
+- jsg on icb, Nov 3, 2014:
+ try to guess Xr in man(7) for hyperlinking
+
- 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...
- consider whether <var> can be used for Ar Dv Er Ev Fa Va.
from bentley@ Wed, 13 Aug 2014 09:17:55 -0600
+- 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
************************************************************************
* formatting issues: gratuitous differences
************************************************************************
-- .Rv (and probably .Ex) print different text if an `Nm' has been named
- or not (run a manual without `Nm blah' to see this). I'm not sure
- that this exists in the wild, but it's still an error.
- loc * exist * algo * size * imp * (already done?)
-
-- In .Bl -bullet, the groff bullet is "+\b+\bo\bo", the mandoc bullet
- is just "o\bo". The problem is to not break ps/pdf when fixing.
- see for example OpenBSD ksh(1)
- loc ** exist ** algo ** size * imp **
+- .Fn reopens a new scope after punctuation in mandoc,
+ but closes its scope for good in groff.
+ Do we want to change mandoc or groff?
+ Steffen Nurpmeso Sat, 08 Nov 2014 13:34:59 +0100
+ loc * exist ** algo ** size * imp **
- In .Bl -enum -width 0n, groff continues one the same line after
the number, mandoc breaks the line.
found while talking to Chris Bennett
loc * exist * algo * size * imp *
+- Sequences of multiple man(7) paragraphs (.PP, .IP) interspersed
+ with .ps and .nf/.fi produce execessive blank lines, see libJudy
+ and graphics/dcmtk. The parser reorg may help with this.
+
- trailing whitespace must be ignored even when followed by a font escape,
- see for example
+ see for example
makes
\fBdig \fR
operate in batch mode
in dig(1).
loc ** exist ** algo ** size * imp **
+************************************************************************
+* portability
+************************************************************************
+
+- word boundaries in regular expressions for whatis(1)
+ set up config tests to use [[:<:]], \<, or nothing
+ Svyatoslav Mishyn Wed, 17 Dec 2014 11:07:10 +0200
+ reminded by Peter Bray Fri, 03 Apr 2015 23:02:16 +1100
+ loc * exist * algo * size * imp *
+
+- systems having UTF-8 but not en_US.UTF-8
+ call locale(1) from ./configure, select a UTF-8-locale,
+ and use that for test-wchar.c and term_ascii.c
+ to Markus Waldeck Sat, 18 Jul 2015 01:55:37 +0200
+ loc * exist * algo * size * imp *
+
************************************************************************
* warning issues
************************************************************************
+- Report errors in -O suboption parsing.
+ loc * exist * algo * size * imp **
+
+- warn when .Sh or .Ss contain other macros
+ Steffen Nurpmeso, savannah.gnu.org/bugs/index.php?45034
+ loc * exist * algo * size * imp **
+
- 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
Fri, 14 Feb 2014 18:54:42 +0100 (CET)
loc * exist ** algo ** size * imp **
+- warn about attempts to call non-callable macros
+ Steffen Nurpmeso Tue, 11 Nov 2014 22:55:16 +0100
+ Note that formatting is inconsistent in groff.
+ .Fn Po prints "Po()", .Ar Sh prints "file ..." and no "Sh".
+ Relatively hard because the relevant code is scattered
+ all over mdoc_macro.c and all subtly different.
+ loc ** exist ** algo ** size ** imp **
+
- warn about "new sentence, new line"
loc ** exist ** algo *** size * imp **
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
+Several areas can be cleaned up to make mandoc even faster. These are
- improve hashing mechanism for macros (quite important: performance)
- the PDF file is HUGE: this can be reduced by using relative offsets
- instead of re-initialising the roff predefined-strings set before each
- parse, create a read-only version the first time and copy it
+ parse, create a read-only version the first time and copy it
loc * exist ** algo ** size * imp **
************************************************************************
* structural issues
************************************************************************
+- Use libz directly instead of forking gunzip(1).
+ Suggested by bapt at FreeBSD among others.
+
- We use the input line number at several places to distinguish
same-line from different-line input. That plainly doesn't work
with user-defined macros, leading to random breakage.
- Find better ways to prevent endless loops
in roff(7) macro and string expansion.
-
+
- Finish cleanup of date handling.
Decide which formats should be recognized where.
Update both mdoc(7) and man(7) documentation.
- Have Mac OSX systems automatically disable -static compilation of the
CGI: -static isn't supported.
+************************************************************************
+* to improve in the groff_mdoc(7) macros
+************************************************************************
+
+- use uname(1) to set doc-default-operating-system at install time
+ tobimensch Mon, 1 Dec 2014 00:25:07 +0100