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Diff for /mandoc/TODO between version 1.64 and 1.150

version 1.64, 2010/11/03 12:07:58 version 1.150, 2013/06/22 10:05:44
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 ************************************************************************  ************************************************************************
   
 ************************************************************************  ************************************************************************
 * parser bugs  * crashes
 ************************************************************************  ************************************************************************
   
 - the roff parser doesn't tolerate additional characters between  None known right now.
   a macro and the \} terminating a conditional block, e.g.  
   .if n \{  
   .br \}  
   reported by ulrich spoerlein  Tue, 19 Oct 2010 20:39:50 +0200  
   
 - .BI "string string " word punct in gettext(3)  
   add bogus line breaks (rep by naddy@)  
   committed; currently working on IP and TP?  
   and what about B and I?  
   
 ************************************************************************  ************************************************************************
 * missing features  * missing features
 ************************************************************************  ************************************************************************
   
 - explicit blocks with missing end macro should be implicitely closed  --- missing roff features ----------------------------------------------
   at the end of the enclosing block, e.g. .Bl It (El) Sh  
   reminded by stsp@  in net/pptp pptp.8  Fri, 23 Apr 2010 20:32:39 +0200  
   
   - 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 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).
   
   - .ce (center N lines)
     found by naddy@ in xloadimage(1)
     found by Juan Francisco Cantero Hurtado <iam at juanfra dot info>
              in lang/racket(1)  Thu, 20 Jun 2013 03:19:11 +0200
   
   - .fc (field control)
     found by naddy@ in xloadimage(1)
   
   - .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
   
   - .ns (no-space mode) occurs in xine-config(1)
     reported by brad@  Sat, 15 Jan 2011 15:45:23 -0500
   
   - .ta (tab settings) occurs in ircbug(1) and probably gnats(1)
     reported by brad@  Sat, 15 Jan 2011 15:50:51 -0500
   
   - .ti (temporary indent)
     found by naddy@ in xloadimage(1)
     found by bentley@ in nmh(1)  Mon, 23 Apr 2012 13:38:28 -0600
   
   - \c (interrupted text) should prevent the line break
     even inside .Bd literal; that occurs in chat(8)
   
   - using undefined strings or macros defines them to be empty
     wl@  Mon, 14 Nov 2011 14:37:01 +0000
   
   --- missing mdoc features ----------------------------------------------
   
 - fix bad block nesting involving multiple identical explicit blocks  - fix bad block nesting involving multiple identical explicit blocks
   see the OpenBSD mdoc_macro.c 1.47 commit message    see the OpenBSD mdoc_macro.c 1.47 commit message
   
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   .Sh .Nm .Bk .Nm .Ek .Sh found by jmc@ in ssh-keygen(1)    .Sh .Nm .Bk .Nm .Ek .Sh found by jmc@ in ssh-keygen(1)
   from jmc@  Wed, 14 Jul 2010 18:10:32 +0100    from jmc@  Wed, 14 Jul 2010 18:10:32 +0100
   
 - auto-Bk in the SYNOPSIS  - \\ is now implemented correctly
   patch from kristaps@  Fri, 16 Jul 2010 14:51:24 +0200    * when defining strings and macros using .ds and .de
   to be revisited after OpenBSD 4.8 tree unlock    * 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.
   
 - implement \\  - .Bd -filled should not be the same as .Bd -ragged, but align both
   in plain text, identical to \e    the left and right margin.  In groff, it is implemented in terms
   as a macro argument, identical to \ i.e. escaping the next character    of .ad b, which we don't have either.  Found in cksum(1).
   We do not have macro definitions yet; if we implement them,  
   \\ must behave in a macro def like in a macro argument,  
   and when using the macro, it must expand yet again.  
   
 - implement basic non-parametric .de to support e.g. sox(1)  
   .de SP  
   .if t .sp .5  
   .if n .sp  
   ..  
   .de EX  
   .SP  
   .nf  
   .ft CW  
   ..  
   .de EE  
   .ft R  
   .SP  
   .fi  
   ..  
   reported by naddy@ Sat, 16 Oct 2010 23:51:57 +0200  
   
 - implement parametric .de to support e.g.  
   /usr/xenocara/lib/libXxf86vm/manXF86VM.man  
   .de ZN  
   .ie t \fB\^\\$1\^\fR\\$2  
   .el \fI\^\\$1\^\fP\\$2  
   ..  
   .ZN -lXxf86vm  
   
 - 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  
   
 - port OpenBSD tbl integration bsd.lv, probably cleaning it up  
   
 - 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.  
   noted by stsp@  Sat, 24 Apr 2010 09:17:55 +0200  
   reminded by nicm@  Mon, 3 May 2010 09:52:41 +0100  
   
 - implement blank `Bl -column', such as  - implement blank `Bl -column', such as
   .Bl -column    .Bl -column
   .It foo Ta bar    .It foo Ta bar
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 - explicitly disallow nested `Bl -column', which would clobber internal  - explicitly disallow nested `Bl -column', which would clobber internal
   flags defined for struct mdoc_macro    flags defined for struct mdoc_macro
   
   - 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
   
 - inside `.Bl -column' phrases, punctuation is handled like normal  - inside `.Bl -column' phrases, punctuation is handled like normal
   text, e.g. `.Bl -column .It Fl x . Ta ...' should give "-x -."    text, e.g. `.Bl -column .It Fl x . Ta ...' should give "-x -."
   
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   (e.g., NetBSD mDNSShared/dns-sd.1)    (e.g., NetBSD mDNSShared/dns-sd.1)
   (mdoc_html.c and mdoc_term.c `Nm' handlers can be slightly simplified)    (mdoc_html.c and mdoc_term.c `Nm' handlers can be slightly simplified)
   
 - allow `Qq', `Dq', `Sq', `Aq', `Bq' to have 0 arguments  - When there is free text in the SYNOPSIS and that free text contains
   noted by Alex Kozlov 08/06/10 23:05    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
   
 - Have `Sh', `It', `Ss' and others complain if `Pp' is invoked prior to  --- missing man features -----------------------------------------------
   close (in the post validation) or prior to open (pre).  This noted by  
   jmc@ a thousand years ago.  
   
 - xloadimage(1) wants .ti (temporary indent), rep by naddy@  - 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
   
 - bashbug(1) complains "line scope broken" after  - -T[x]html doesn't stipulate non-collapsing spaces in literal mode
   .SM  
   .B something  
   should either just work or be a warning  
   reported by naddy@  
   
   --- 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
   
   - 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
   
   --- missing misc features ----------------------------------------------
   
   - 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
   
   - 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)
   
   - 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
   
   - 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
   
 ************************************************************************  ************************************************************************
 * formatting issues: ugly output  * formatting issues: ugly output
 ************************************************************************  ************************************************************************
   
 - perl(1) SYNOPSIS looks bad; reported by deraadt@  - a column list with blank `Ta' cells triggers a spurrious
   1) man(7) seems to need SYNOPSIS .Nm blocks, too    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,  - In .Bl -column,
   .It Em Authentication<tab>Key Length    .It Em Authentication<tab>Key Length
   ought to render "Key Length" with emphasis, too,    ought to render "Key Length" with emphasis, too,
   see OpenBSD iked.conf(5).    see OpenBSD iked.conf(5).
     reported again Nicolas Joly via wiz@ Wed, 12 Oct 2011 00:20:00 +0200
   
 - empty phrases in .Bl column produce too few blanks  - empty phrases in .Bl column produce too few blanks
   try e.g. .Bl -column It Ta Ta    try e.g. .Bl -column It Ta Ta
   reported by millert Fri, 02 Apr 2010 16:13:46 -0400    reported by millert Fri, 02 Apr 2010 16:13:46 -0400
   
   - .%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".
   
   - 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
   
 - in enclosures, mandoc sometimes fancies a bogus end of sentence  - in enclosures, mandoc sometimes fancies a bogus end of sentence
   reminded by jmc@  Thu, 23 Sep 2010 18:13:39 +0059    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
   
 ************************************************************************  ************************************************************************
 * formatting issues: gratuitious differences  * formatting issues: gratuitous differences
 ************************************************************************  ************************************************************************
   
 - .%T should be quoted, not underlined, when .%J is also present,  - .Rv (and probably .Ex) print different text if an `Nm' has been named
   to better distinguish the contents of .%T and .%J,    or not (run a manual without `Nm blah' to see this).  I'm not sure
   see for example OpenBSD cat(1)    that this exists in the wild, but it's still an error.
   
 - In .Bl -bullet, the groff bullet is "+\b+\bo\bo", the mandoc bullet  - In .Bl -bullet, the groff bullet is "+\b+\bo\bo", the mandoc bullet
   is just "o\bo".    is just "o\bo".
   see for example OpenBSD ksh(1)    see for example OpenBSD ksh(1)
   
 - The characters "|" and "\*(Ba" should never be bold,  - .Pp between two .It in .Bl -column should produce one,
   not even in the middle of a word, e.g. ".Cm b\*(Bac" in    not two blank lines, see e.g. login.conf(5).
   "mknod [-m mode] name b|c major minor"    reported by jmc@  Sun, 17 Apr 2011 14:04:58 +0059
   in OpenBSD ksh(1)    reported again by sthen@  Wed, 18 Jan 2012 02:09:39 +0000 (UTC)
   
 - A bogus .Pp between two .It must not produce a double blank line,  - If the *first* line after .It is .Pp, break the line right after
   see between -R and -r in OpenBSD rm(1), before "update" in mount(8),    the tag, do not pad with space characters before breaking.
   or in DIAGNOSTICS in init(8).    See the description of the a, c, and i commands in sed(1).
   
 - .Bd -literal and .Bd -unfilled are *not* identical.  - If the first line after .It is .D1, do not assert a blank line
   In -literal, tabs are 8 spaces.    in between, see for example tmux(1).
   In -unfilled, tabs are 5 spaces, just like in -filled and -ragged.    reported by nicm@  13 Jan 2011 00:18:57 +0000
   See the CCDF_* display in OpenBSD ccdconfig(8).  
   
   - 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.
   
 - .Nx 1.0a  - .Nx 1.0a
   should be "NetBSD 1.0A", not "NetBSD 1.0a",    should be "NetBSD 1.0A", not "NetBSD 1.0a",
   see OpenBSD ccdconfig(8).    see OpenBSD ccdconfig(8).
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   on the next line, it must be indented by -width, not width+1;    on the next line, it must be indented by -width, not width+1;
   see "rule block|pass" in OpenBSD ifconfig(8).    see "rule block|pass" in OpenBSD ifconfig(8).
   
   - 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
   
 - The \& zero-width character counts as output.  - The \& zero-width character counts as output.
   That is, when it is alone on a line between two .Pp,    That is, when it is alone on a line between two .Pp,
   we want three blank lines, not two as in mandoc.    we want three blank lines, not two as in mandoc.
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 - When .Fn arguments exceed one output line, all but the first  - When .Fn arguments exceed one output line, all but the first
   should be indented, see e.g. rpc(3);    should be indented, see e.g. rpc(3);
   reported by jmc@ on discuss@  Fri, 29 Oct 2010 13:48:33 +0100    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"
   
 - It seems that .TP does not want TWOSPACE after the tag;  
   see bashbug(1); reported by naddy@  
   
 - Header lines of excessive length:  - Header lines of excessive length:
   Port OpenBSD man_term.c rev. 1.25 to mdoc_term.c    Port OpenBSD man_term.c rev. 1.25 to mdoc_term.c
   and document it in mdoc(7) and man(7) COMPATIBILITY    and document it in mdoc(7) and man(7) COMPATIBILITY
   found while talking to Chris Bennett    found while talking to Chris Bennett
   
   - 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).
   
 ************************************************************************  ************************************************************************
 * performance issues  * performance issues
 ************************************************************************  ************************************************************************
Line 210  Several areas can be cleaned up to make mandoc even fa
Line 296  Several areas can be cleaned up to make mandoc even fa
   
 - the PDF file is HUGE: this can be reduced by using relative offsets  - 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
   
 ************************************************************************  ************************************************************************
 * structural issues  * structural issues
 ************************************************************************  ************************************************************************
   
   - 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
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Removed from v.1.64  
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  Added in v.1.150
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