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Diff for /mandoc/TODO between version 1.1 and 1.82

version 1.1, 2010/05/14 18:20:20 version 1.82, 2011/01/23 15:35:10
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   ************************************************************************
   * Official mandoc TODO.
   * $Id$
   ************************************************************************
   
 Before trying to fix anything from this list,  ************************************************************************
 check against -current mandoc from OpenBSD CVS.  * parser bugs
 Sometimes, i'm a bit behind marking entries FIXED.  ************************************************************************
   
 In general, i keep FIXED entries for some time  - .TP before .SH is still FATAL in man(7)
 and remove them when they turn into old news.    reported by brad@  Sat, 15 Jan 2011 15:54:54 -0500
   
   - the roff parser doesn't tolerate additional characters between
     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
   
 ************************************************************************  ************************************************************************
   * formatter bugs
   ************************************************************************
   
   ************************************************************************
 * 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  
   
   - .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).
   
   - .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
   
   - 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
   
   - pod2man expects `tr' to be implemented for \*(-- to work
   
   --- missing mdoc features ----------------------------------------------
   
   - fix bad block nesting involving multiple identical explicit blocks
     see the OpenBSD mdoc_macro.c 1.47 commit message
   
 - .Bl -column .Xo support is missing  - .Bl -column .Xo support is missing
   ultimate goal:    ultimate goal:
   restore .Xr and .Dv to    restore .Xr and .Dv to
Line 21  and remove them when they turn into old news.
Line 61  and remove them when they turn into old news.
   lib/libc/gen/signal.3    lib/libc/gen/signal.3
   lib/libc/sys/sigaction.2    lib/libc/sys/sigaction.2
   
 - .Bk / .Ek is broken, e.g.  - edge case: decide how to deal with blk_full bad nesting, e.g.
   $ man ssh    .Sh .Nm .Bk .Nm .Ek .Sh found by jmc@ in ssh-keygen(1)
   [...]    from jmc@  Wed, 14 Jul 2010 18:10:32 +0100
   ssh [-1246AaCfgKkMNnqsTtVvXxYy] [-b bind_address] [-c cipher_spec] [-D  
   [bind_address:]port] [-e escape_char] [-F configfile] [-I pkcs11]  
   reminded by Ludo Smissaert  Mon, 10 May 2010 12:15:11 +0200  
   also reported by jmc@ earlier  
   
 - man(7) .TH should recognize "3p" as a section number  - \\ is now implemented correctly
   found in usr.bin/pkg_add OpenBSD::Getopt    * 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.
   
 - 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.  
   
 - look at bsd.lv tbl(1)  - implement blank `Bl -column', such as
   from kristaps@  Fri, 11 Sep 2009 17:10:53 +0200    .Bl -column
     .It foo Ta bar
     .El
   
   - explicitly disallow nested `Bl -column', which would clobber internal
     flags defined for struct mdoc_macro
   
   - 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 ."
   
   - set a meaningful default if no `Bl' list type is assigned
   
   - have a blank `It' head for `Bl -tag' not puke
   
   - 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)
   
   --- missing man features -----------------------------------------------
   
   - bashbug(1) complains "line scope broken" after
     .SM
     .B something
     should either just work or be a warning
     reported by naddy@
   
   - groff an-ext.tmac macros (.UR, .UE) occur in xine(5)
     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)
     reported by naddy@ Sat, 16 Oct 2010 23:51:57 +0200
     *** sox(1) still doesn't work, tbl(1) errors need investigation
   
   --- 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
   
 - look at pages generated from reStructeredText, e.g. devel/mercurial hg(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    These are a weird mixture of man(7) and custom autogenerated low-level
   roff stuff.  Figure out to what extent we can cope.    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    noted by stsp@  Sat, 24 Apr 2010 09:17:55 +0200
   reminded by nicm@  Mon, 3 May 2010 09:52:41 +0100    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
   
 - FIXED OpenBSD term.h 1.16 term.c 1.30 mdoc_term.c 1.75 schwarze 23.4.10  ************************************************************************
   handle tab characters outside literal context, e.g. usb(4)  * formatting issues: ugly output
   reported by jmc@  Mon, 19 Apr 2010 07:42:12 +0100  ************************************************************************
   
 - FIXED OpenBSD man.h 1.15 libman.h 1.16 man_hash.c 1.9  - double quotes inside double quotes are escaped by doubling them
   man.c 1.25 man_macro.c 1.15 man_validate.c 1.19 man_action.c 1.15    implement this in mdoc(7), too
   man_term.c 1.28 man_html.c 1.9 schwarze 25.4.    so far, we only have it in roff(7) and man(7)
   implement .if .ie .el    reminded by millert@  Thu, 09 Dec 2010 17:29:52 -0500
   noticed by espie@  Fri, 23 Apr 2010 17:10:35 +0200  
   
 - FIXED bsd.lv libman.h 1.31 libmdoc.h 1.34 man.c 1.60 mdoc.c 1.123  - perl(1) SYNOPSIS looks bad; reported by deraadt@
         kristaps@ 8.4.10    1) man(7) seems to need SYNOPSIS .Nm blocks, too
   FIXED OpenBSD libman.h 1.17 libmdoc.h 1.28 man.c 1.26 mdoc.c 1.45  
         schwarze@ 8.5.10  
   groff handles \." just like .\"  
   Thus, mandoc must also ignore such lines.  
   For an example, see tr(1).  
   reported by Claus Assmann Mon, 5 Apr 2010 08:46:30 -0700  
   
   - In .Bl -column,
     .It Em Authentication<tab>Key Length
     ought to render "Key Length" with emphasis, too,
     see OpenBSD iked.conf(5).
   
   - 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
   
   - in enclosures, mandoc sometimes fancies a bogus end of sentence
     reminded by jmc@  Thu, 23 Sep 2010 18:13:39 +0059
   
 ************************************************************************  ************************************************************************
 * formatting issues: ugly output  * formatting issues: gratuitious differences
 ************************************************************************  ************************************************************************
   
 - outside list context, text following .Sm off  - .Rv (and probably .Ex) print different text if an `Nm' has been named
   seems to follow without a blank (TERM_NOBLANK reset late?) e.g.    or not (run a manual without `Nm blah' to see this).  I'm not sure
         .Sm off    that this exists in the wild, but it's still an error.
         .Xo  
         .Op Ar bind_address No /  
         .Ar port  
         .Xc  
         .Sm on  
         or by enclosing  
   reported by jmc Tue, 13 Apr 2010 08:48:14 +0100  
   
 - do not break the line after "--", it's probably a long option  - In .Bl -bullet, the groff bullet is "+\b+\bo\bo", the mandoc bullet
   reminded by stsp in net/pptp pptp.8  Fri, 23 Apr 2010 20:32:39 +0200    is just "o\bo".
     see for example OpenBSD ksh(1)
   
 - in .Bl -column .It, "\t" seems to be synonymous to " Ta ",  - The characters "|" and "\*(Ba" should never be bold,
   see sysctl(3) for many examples;    not even in the middle of a word, e.g. ".Cm b\*(Bac" in
   mishandling this results in spurious quotes at EOL    "mknod [-m mode] name b|c major minor"
   reminded by guenther@  Mon, 26 Apr 2010 01:16:52 -0700    in OpenBSD ksh(1)
   
 - URGENT, this is making many kernel manuals look bad:  - A bogus .Pp between two .It must not produce a double blank line,
   .Ft/.Fn should MAYBE behave in custom section like in SYNOPSIS?    see between -R and -r in OpenBSD rm(1), before "update" in mount(8),
   autoconf.9:    or in DIAGNOSTICS in init(8).
     .Sh DIRECT CONFIGURATION    Also have `It' complain if `Pp' is invoked at certain times (not
     .nr nS 1    -compact?).
     .Ft "struct device *"  
     .Fn config_found_sm "struct device *parent"  
   groff:  
     DIRECT CONFIGURATION  
       struct device *  
       config_found_sm(struct device *parent, ...  
   reported by sthen  Tue, 20 Apr 2010 13:42:51 +0100  
   
 - indentation got lost in SYNOPSIS, e.g.  - .Nx 1.0a
    SYNOPSIS    should be "NetBSD 1.0A", not "NetBSD 1.0a",
         date [-ajnu] [-d dst] [-r seconds] [-t minutes_west] [+format]    see OpenBSD ccdconfig(8).
   -          [[[[[[cc]yy]mm]dd]HH]MM[.SS]]  
   +     [[[[[[cc]yy]mm]dd]HH]MM[.SS]]  
   reminded by Ludo Smissaert  Mon, 10 May 2010 12:15:11 +0200  
   
 - empty phrases in .Bl column produce too few blanks  - In .Bl -tag, if a tag exceeds the right margin and must be continued
   try e.g. .Bl -column It Ta Ta    on the next line, it must be indented by -width, not width+1;
   reported by millert Fri, 02 Apr 2010 16:13:46 -0400    see "rule block|pass" in OpenBSD ifconfig(8).
   
   - 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.
   
 - FIXED on bsd.lv for mdoc, need to merge and test in OpenBSD  - When .Fn arguments exceed one output line, all but the first
     kristaps@  Mon, 10 May 2010 03:12:44 +0200    should be indented, see e.g. rpc(3);
     man fix still pending!    reported by jmc@ on discuss@  Fri, 29 Oct 2010 13:48:33 +0100
   in literal displays, ignore the right margin  
   reminded by stsp in net/pptp pptp.8  Fri, 23 Apr 2010 20:32:39 +0200  
   
 - FIXED on bsd.lv, need to merge and test in OpenBSD  - Header lines of excessive length:
     kristaps@  Mon, 10 May 2010 02:59:40 +0200    Port OpenBSD man_term.c rev. 1.25 to mdoc_term.c
   do not mark \*(Ba and | up    and document it in mdoc(7) and man(7) COMPATIBILITY
   e.g. .Op Fl c Ar string \*(Ba Fl s \*(Ba Ar file Op Ar argument ...    found while talking to Chris Bennett
   The first should not be in an .Ar font.  
   The second must not end up as -|.  
   When fixing, check whether this is a specific problem with this  
   character, or whether other characters are affected, too.  
   reminded by jmc@  Sat, 24 Apr 2010 06:54:26 +0100  
   
   ************************************************************************
   * error reporting issues
   ************************************************************************
   
 ************************************************************************  ************************************************************************
 * formatting issues: gratuitious differences  * performance issues
 ************************************************************************  ************************************************************************
   
 - in literal context, groff disables the right margin  Several areas can be cleaned up to make mandoc even faster.  These are
   an example: syslog.conf.5 EXAMPLES section  
   reported by jmc Tue, 13 Apr 2010 10:12:15 +0100  
   solution: raise termp->maxrmargin in literal context  
   
 - lines containing blank characters, and nothing else,  - improve hashing mechanism for macros (quite important: performance)
   in literal context (.Bd -literal):  
   groff outputs just blank lines "\n"  
   mandoc outputs blanks to the left margin,  
   then the number of balnks minus one  
   
   - improve hashing mechanism for characters (not as important)
   
 - FIXED bsd.lv mdoc_html.c 1.61 mdoc_term.c 1.117 kristaps@ 8.4.10  - the PDF file is HUGE: this can be reduced by using relative offsets
   FIXED OpenBSD mdoc_html.c 1.12 mdoc_term.c 1.76 schwarze@ 8.5.10  
   mandoc .%T changed from quoted to underlined  
   reported by jmc Mon, 10 Aug 2009 05:50:21 +0100  
   
   
 ************************************************************************  ************************************************************************
 * parser errors without any effect on formatting  * structural issues
 ************************************************************************  ************************************************************************
   
 - OpenBSD::PackageName(3p) has "if (block) 90:1" in the parse tree  - Find better ways to prevent endless loops
     in roff(7) macro and string expansion.
   

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