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freebsd-skq/contrib/mdocml/TODO
Baptiste Daroussin 1f87cafa31 Import mandoc 1.4.1rc2
2017-02-19 17:46:37 +00:00

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************************************************************************
* Official mandoc TODO.
* $Id: TODO,v 1.234 2017/02/18 11:53:33 schwarze Exp $
************************************************************************
Many issues are annotated for difficulty as follows:
- loc = locality of the issue
* single file issue, affects file only, or very few
** single module issue, affects several files of one module
*** cross-module issue, significantly impacts multiple modules
and may require substantial changes to internal interfaces
- exist = difficulty of the existing code in this area
* affected code is straightforward and easy to read and change
** affected code is somewhat complex, but once you understand
the design, not particularly difficult to understand
*** affected code uses a special, exceptionally tricky design
- algo = difficulty of the new algorithm to be written
* the required logic and code is straightforward
** the required logic is somewhat complex and needs a careful design
*** the required logic is exceptionally tricky,
maybe an approach to solve that is not even known yet
- size = the amount of code to be written or changed
* a small number of lines (at most 100, usually much less)
** a considerable amount of code (several dozen to a few hundred)
*** a large amount of code (many hundreds, maybe thousands)
- imp = importance of the issue
* mostly for completeness
** would be nice to have
*** issue causes considerable inconvenience
Obviously, as the issues have not been solved yet, these annotations
are mere guesses, and some may be wrong.
************************************************************************
* missing features
************************************************************************
--- missing roff features ----------------------------------------------
- .ad (adjust margins)
.ad l -- adjust left margin only (flush left)
.ad r -- adjust right margin only (flush right)
.ad c -- center text on line
.ad b -- adjust both margins (alias: .ad n)
.na -- temporarily disable adjustment without changing the mode
.ad -- re-enable adjustment without changing the mode
Adjustment mode is ignored while in no-fill mode (.nf).
loc *** exist *** algo ** size ** imp ** (parser reorg would help)
- .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)
#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
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) [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
found by jca@ in ratpoison(1) Sun, 30 Jun 2013 12:01:09 +0200
loc * exist ** algo ** size ** imp **
- \h horizontal move
#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 ----------------------------------------------
- .Bl -column .Xo support is missing
ultimate goal:
restore .Xr and .Dv to
lib/libc/compat-43/sigvec.3
lib/libc/gen/signal.3
lib/libc/sys/sigaction.2
loc * exist *** algo *** size * imp **
- edge case: decide how to deal with blk_full bad nesting, e.g.
.Sh .Nm .Bk .Nm .Ek .Sh found by jmc@ in ssh-keygen(1)
from jmc@ Wed, 14 Jul 2010 18:10:32 +0100
loc * exist *** algo *** size ** imp **
- .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.
loc *** exist *** algo ** size ** imp ** (parser reorg would help)
- .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).
loc *** exist *** algo ** size ** imp ** (parser reorg would help)
- implement blank `Bl -column', such as
.Bl -column
.It foo Ta bar
.El
loc * exist *** algo *** size * imp *
- explicitly disallow nested `Bl -column', which would clobber internal
flags defined for struct mdoc_macro
loc * exist * algo * size * imp **
- In .Bl -column .It, the end of the line probably has to be regarded
as an implicit .Ta, if there could be one, see the following mildly
ugly code from login.conf(5):
.Bl -column minpasswordlen program xetcxmotd
.It path Ta path Ta value of Dv _PATH_DEFPATH
.br
Default search path.
reported by Michal Mazurek <akfaew at jasminek dot net>
via jmc@ Thu, 7 Apr 2011 16:00:53 +0059
loc * exist *** algo ** size * imp **
- inside `.Bl -column' phrases, punctuation is handled like normal
text, e.g. `.Bl -column .It Fl x . Ta ...' should give "-x -."
- inside `.Bl -column' phrases, TERMP_IGNDELIM handling by `Pf'
is not safe, e.g. `.Bl -column .It Pf a b .' gives "ab."
but should give "ab ."
- check whether it is correct that `D1' uses INDENT+1;
does it need its own constant?
loc * exist ** algo ** size * imp **
- 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
loc ** exist ** algo ** size * imp **
- 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.
No idea how the logic for distinguishing in-line and block instances
should be, needs investigation.
uqs@ Thu, 2 Jun 2011 11:03:51 +0200
uqs@ Thu, 2 Jun 2011 11:33:35 +0200
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 ***
- break long text into lines inside cells
net/lftp(1) from jirib via bentley@ Sep 13, 2016
- layout l1 for a column of max text width 3 reduces the following
inter-column spacing for groff, but not for mandoc
net/lftp(1) from jirib via bentley@ Sep 13, 2016
- 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: 3 Jan 2015 23:32:23 +0100
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 ***
- look what Joerg Schilling manual pages use
Thu, 19 Mar 2015 18:31:48 +0100
- use Unicode U+2500 to U+256C for table borders
in tbl(7) -Tutf-8 output
suggested by bentley@ Tue, 14 Oct 2014 04:10:55 -0600
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 *
- The spacing characters `~', `^', and tab are currently ignored,
see User's Guide (Second Edition) page 2 section 4.
loc * exist * algo ** size * imp **
- Mark and lineup are parsed and ignored,
see User's Guide (Second Edition) page 5 section 15.
loc ** exist ** algo ** size ** imp **
--- missing misc features ----------------------------------------------
- italic correction (\/) in PostScript mode
Werner LEMBERG on groff at gnu dot org Sun, 10 Nov 2013 12:47:46
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 ***
- 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
or serious mangling of formatting (e.g. \n) -> ERROR
see textproc/mgdiff(1) for nice examples
(3) undefined, just output the character -> perhaps WARNING
loc *** exist ** algo ** size ** imp *** (parser reorg helps)
- 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?
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
ported version: https://github.com/n-t-roff/DWB3.3
Carsten Kunze Wed, 22 Apr 2015 11:21:43 +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
roff stuff. Figure out to what extent we can cope.
For details, see http://docutils.sourceforge.net/rst.html
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 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
- check compatibility with
http://ikiwiki.info/plugins/contrib/mandoc/
https://github.com/schmonz/ikiwiki/compare/mandoc
Amitai Schlair Mon, 19 May 2014 14:05:53 -0400
- check features of the Slackware man.conf(5) format
Carsten Kunze Wed, 11 Mar 2015 17:57:24 +0100
************************************************************************
* formatting issues: ugly output
************************************************************************
- 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,
see OpenBSD iked.conf(5).
reported again Nicolas Joly via wiz@ Wed, 12 Oct 2011 00:20:00 +0200
loc * exist *** algo *** size ** imp ***
- empty phrases in .Bl column produce too few blanks
try e.g. .Bl -column It Ta Ta
reported by millert Fri, 02 Apr 2010 16:13:46 -0400
loc * exist *** algo *** size * imp **
- .%T can have trailing punctuation. Currently, it puts the trailing
punctuation into a trailing MDOC_TEXT element inside its own scope.
That element should rather be outside its scope, such that the
punctuation does not get underlines. This is not trivial to
implement because .%T then needs some features of in_line_eoln() -
slurp all arguments into one single text element - and one feature
of in_line() - put trailing punctuation out of scope.
Found in mount_nfs(8) and exports(5), search for "Appendix".
loc ** exist ** algo *** size * imp **
- Trailing punctuation after .%T triggers EOS spacing, at least
outside .Rs (eek!). Simply setting ARGSFL_DELIM for .%T is not
the right solution, it sends mandoc into an endless loop.
reported by Nicolas Joly Sat, 17 Nov 2012 11:49:54 +0100
loc * exist ** algo ** size * imp **
- 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
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
--- PostScript and 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
instructions from juanfra@ Wed, 11 Jun 2014 02:21:01 +0200
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 **
--- HTML issues --------------------------------------------------------
- .Bf at the beginning of a paragraph inserts a bogus 1ex horizontal
space, see for example random(3). Introduced in
http://mdocml.bsd.lv/cgi-bin/cvsweb/mdoc_html.c.diff?r1=1.91&r2=1.92
reported by deraadt@ Mon, 28 Sep 2015 20:14:13 -0600 (MDT)
loc ** exist ** algo ** size * imp *
- jsg on icb, Nov 3, 2014:
try to guess Xr in man(7) for hyperlinking
and render them with <a class="Xr" href=...>
https://github.com/Debian/debiman/issues/15
loc * exist * algo ** size ** imp **
- 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
************************************************************************
* formatting issues: gratuitous differences
************************************************************************
- .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 **
- .Lk formatting for long links with line breaks
Franco Fichtner 8 Oct 2013 00:33:42 +0200
- 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
loc * exist ** algo ** size * imp **
- .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
reported again by sthen@ Wed, 18 Jan 2012 02:09:39 +0000 (UTC)
loc * exist *** algo ** size * imp **
- If the *first* line after .It is .Pp, break the line right after
the tag, do not pad with space characters before breaking.
See the description of the a, c, and i commands in sed(1).
loc * exist ** algo ** size * imp **
- If the first line after .It is .D1, do not assert a blank line
in between, see for example tmux(1).
reported by nicm@ 13 Jan 2011 00:18:57 +0000
loc * exist ** algo ** size * imp **
- Trailing punctuation after .It should trigger EOS spacing.
reported by Nicolas Joly Sat, 17 Nov 2012 11:49:54 +0100
Probably, this should be fixed somewhere in termp_it_pre(), not sure.
loc * exist ** algo ** size * imp **
- .Nx 1.0a
should be "NetBSD 1.0A", not "NetBSD 1.0a",
see OpenBSD ccdconfig(8).
loc * exist * algo * size * imp **
- In .Bl -tag, if a tag exceeds the right margin and must be continued
on the next line, it must be indented by -width, not width+1;
see "rule block|pass" in OpenBSD ifconfig(8).
loc * exist *** algo ** size * imp **
- When the -width string contains macros, the macros must be rendered
before measuring the width, for example
.Bl -tag -width ".Dv message"
in magic(5), located in src/usr.bin/file, is the same
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
reported again by Bruce Evans Fri, 17 Feb 2017 21:22:44 +0100 via bapt@
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.
loc * exist * algo * size * imp ***
- 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.
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
makes
\fBdig \fR
operate in batch mode
in dig(1).
loc ** exist ** algo ** size * imp **
************************************************************************
* warning issues
************************************************************************
- provide a way in mandoc(1) to warn about broken .Xr links;
probably cannot be on by default in -Tlint because it needs
to access the manpath and mandoc.db(3) after parsing.
asked for by jmc@ Fri, 4 Dec 2015 22:39:40 +0000
- warn when .Sh or .Ss contain other macros
Steffen Nurpmeso, savannah.gnu.org/bugs/index.php?45034
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 **
- mandoc_special does not really check the escape sequence,
but just the overall format
loc ** exist ** algo *** size ** imp **
- 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
(mostly done, check what remains)
- -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
************************************************************************
* documentation issues
************************************************************************
- mark macros as: page structure domain, manual domain, general text domain
is this useful?
- mention /usr/share/misc/mdoc.template in mdoc(7)?
- Is all the content from http://www.std.com/obi/BSD/doc/usd/28.tbl/tbl
covered in tbl(7)?
************************************************************************
* performance issues
************************************************************************
- Why are we using MAP_SHARED, not MAP_PRIVATE for mmap(2)?
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)
- the PDF file is HUGE: this can be reduced by using relative offsets
************************************************************************
* structural issues
************************************************************************
- POSIX says in the documentation of sysconf(3) that PATH_MAX
is allowed to be so large that it is a bad idea to use it
for sizing static buffers. So use dynamic buffers throughout.
See the file test-PATH_MAX.c for details.
Found by Aaron M. Ucko in the GNU Hurd via Bdale Garbee,
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=829624
- 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.
Triggered by Tim van der Molen Tue, 22 Feb 2011 20:30:45 +0100
- struct mparse refactoring
Steffen Nurpmeso Thu, 04 Sep 2014 12:50:00 +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.
- 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
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