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Diff for /mandoc/TODO between version 1.113 and 1.189

-version 1.113, 2011/06/18 17:58:48
+version 1.189, 2014/11/26 21:40:17
 Line 3
 Line 3
 Line 3
  * $Id$
  ************************************************************************
- ************************************************************************
+ Many issues are annotated for difficulty as follows:
- * parser bugs
- ************************************************************************
- - .TP before .SH is still FATAL in man(7)
+  - loc = locality of the issue
-   reported by brad@  Sat, 15 Jan 2011 15:54:54 -0500
+     *    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.
  ************************************************************************
- * formatter bugs
+ * crashes
  ************************************************************************
- - tbl(7): Horizontal and vertical lines are formatted badly:
+ - The abort() in bufcat(), html.c, can be triggered via buffmt_includes()
-   With the box option, there is too much white space at the end of cells.
+   by running -Thtml -Oincludes on a file containing a long .In argument.
-   Horizontal lines from "=" lines are a bit too long.
+   Fixing this will probably require reworking the whole bufcat() concept.
-   yuri dot pankov at gmail dot com  Thu, 14 Apr 2011 05:45:26 +0400
+   loc **  exist *  algo *  size **  imp **
  ************************************************************************
  * missing features
-Line 33
+Line 55
 Line 33
 Line 55
    .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)
- - .it (line traps) occur in mysql(1), yasm_arch(7)
+ - .fc (field control)
-   generated by DocBook XSL Stylesheets v1.71.1 <http://docbook.sf.net/>
+   found by naddy@ in xloadimage(1)
-   reported by brad@  Sat, 15 Jan 2011 15:48:18 -0500
+   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)
    reported by brad@  Sat, 15 Jan 2011 15:45:23 -0500
+   loc ***  exist ***  algo ***  size **  imp *
- - xloadimage(1) wants .ti (temporary indent), rep by naddy@
  - .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
+   loc **  exist ***  algo **  size **  imp **
- - pod2man expects `tr' to be implemented for \*(-- to work
+ - .ti (temporary indent)
+   found by naddy@ in xloadimage(1)
+   found by bentley@ in nmh(1)  Mon, 23 Apr 2012 13:38:28 -0600
+   loc **  exist **  algo **  size *  imp ** (parser reorg helps a lot)
- - \c (interrupted text) occurs in chat(8)
+ - .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)
+ - \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 **
+ - \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 ***
+ - 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:
-Line 61
+Line 118
 Line 61
 Line 118
    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 **
  - \\ is now implemented correctly
    * when defining strings and macros using .ds and .de
-Line 73
+Line 132
 Line 73
 Line 132
    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.
+   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
-Line 94
+Line 163
 Line 94
 Line 163
      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 -."
-Line 103
+Line 173
 Line 103
 Line 173
    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 **
  - 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.
-Line 117
+Line 200
 Line 117
 Line 200
    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 man features -----------------------------------------------
- - groff an-ext.tmac macros (.UR, .UE) occur in xine(5)
+ - -T[x]html doesn't stipulate non-collapsing spaces in literal mode
-   reported by brad@  Sat, 15 Jan 2011 15:45:23 -0500
  --- missing tbl features -----------------------------------------------
- - implement basic non-parametric .de to support e.g. sox(1)
+ - look at the POSIX manuals in the books/man-pages-posix port,
-   reported by naddy@ Sat, 16 Oct 2010 23:51:57 +0200
+   they use some unsupported tbl(7) features.
-   *** sox(1) still doesn't work, tbl(1) errors need investigation
+   loc *  exist **  algo **  size **  imp ***
+ - 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 **
  - 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 -----------------------------------------------
+ - 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 *
+ - 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 **
+ - makewhatis(8) for preformatted pages:
+   parse the section number from the header line
+   and compare to the section number from the directory name
+   loc *  exist *  algo *  size *  imp **
+ - Does makewhatis(8) detect missing NAME sections, missing names,
+   and missing descriptions in all the file formats?
+   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)
- - The \t escape sequence is the same as a literal tab, see for example
+ - kettenis wants base roff, ms, and me  Fri, 1 Jan 2010 22:13:15 +0100 (CET)
-   the ASCII table in hexdump(1) where
+   loc **  exist **  algo **  size ***  imp *
-     .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
-nul  001 soh  002 stx  003 etx  004 eot  005 enq
-   and the example in oldrdist(1)
+ --- 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
    roff stuff.  Figure out to what extent we can cope.
-Line 157
+Line 288
 Line 157
 Line 288
    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
+ - 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
  ************************************************************************
  * formatting issues: ugly output
  ************************************************************************
-Line 169
+Line 318
 Line 169
 Line 318
  - 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
- - perl(1) SYNOPSIS looks bad; reported by deraadt@
-) man(7) seems to need SYNOPSIS .Nm blocks, too
  - 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.
-Line 194
+Line 338
 Line 194
 Line 338
    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 ***
+ - 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
+   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 (?)).
+   loc *  exist **  algo **  size *  imp **
+ --- 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
+   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...
+   Observed by an Anonymous Coward on undeadly.org:
+   http://undeadly.org/cgi?action=article&sid=20140925064244&pid=1
+   loc *  exist *  algo **  size *  imp ***
+ - 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
  ************************************************************************
+ - .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 **
  - .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".
+   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 **
- - The characters "|" and "\*(Ba" should never be bold,
+ - In .Bl -enum -width 0n, groff continues one the same line after
-   not even in the middle of a word, e.g. ".Cm b\*(Bac" in
+   the number, mandoc breaks the line.
-   "mknod [-m mode] name b|c major minor"
+   mail to kristaps@  Mon, 20 Jul 2009 02:21:39 +0200
-   in OpenBSD ksh(1)
+   loc *  exist **  algo **  size *  imp **
- - A bogus .Pp between two .It must not produce a double blank line,
-   see between -R and -r in OpenBSD rm(1), before "update" in mount(8),
-   or in DIAGNOSTICS in init(8), or before "is always true" in ksh(1).
-   The same happens with .Pp just before .El, see bgpd.conf(5).
-   Also have `It' complain if `Pp' is invoked at certain times (not
-   -compact?).
  - .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
+   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 **
- - 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
- - .Ns should work when called at the end of an input line, see
-   the following code in vi(1):
-     .It Xo
-     .Op Ar line
-     .Cm a Ns Op Cm ppend Ns
-     .Op Cm !\&
-     .Xc
-     The input text is appended after the specified line.
  - 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
    found while talking to Chris Bennett
+   loc *  exist *  algo *  size *  imp *
- - In man(7), the sequence
-     .HP
-     one line of regular text
-     .SH
-   should not produce two blank lines before the .SH,
-   see for example named-checkconf(8).
- - In man(7), the sequence
-     .SH HEADER
-     <blank line>
-     .PP
-     regular text
-   should not produce any blank lines between the header and the text,
-   see for example rsync(1).
-   Reported by naddy@  Mon, 28 Mar 2011 20:45:42 +0200
- - In man(7), the sequence
-     regular text
-     .IP
-     .IP "tag"
-     indented text
-   should produce one, not four blank lines between the regular text
-   and the tag, see for example rsync(1).
-   Likewise,
-     regular text
-     .IP
-     indented text
-   should produce one, not two blank lines in between, and
-     regular text
-     .IP
-     .RS
-     .IP tag
-     indented text
-   should produce one, not three blank lines.
-   Reported by naddy@  Mon, 28 Mar 2011 20:45:42 +0200
- - At least sometimes, .sp is ignored right after .SH; see named.conf(5).
  - 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 **
  ************************************************************************
- * error reporting issues
+ * 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)
+   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 **
+ - 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
+ - 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)?
+ - 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)?
+   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)
-Line 331  Several areas can be cleaned up to make mandoc even fa
+Line 556  Several areas can be cleaned up to make mandoc even fa
 Line 331  Several areas can be cleaned up to make mandoc even fa
 Line 556  Several areas can be cleaned up to make mandoc even fa
  - 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
+   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.
-Line 342  Several areas can be cleaned up to make mandoc even fa
+Line 578  Several areas can be cleaned up to make mandoc even fa
 Line 342  Several areas can be cleaned up to make mandoc even fa
 Line 578  Several areas can be cleaned up to make mandoc even fa
    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
+ - 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.

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