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Date:      Fri, 26 Jul 2019 09:53:22 +0000 (UTC)
From:      Baptiste Daroussin <bapt@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-vendor@freebsd.org
Subject:   svn commit: r350350 - vendor/mandoc/20190723
Message-ID:  <201907260953.x6Q9rM1P070124@repo.freebsd.org>

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Author: bapt
Date: Fri Jul 26 09:53:21 2019
New Revision: 350350
URL: https://svnweb.freebsd.org/changeset/base/350350

Log:
  Tag import of mandoc snapshot 2019-07-23

Added:
  vendor/mandoc/20190723/
     - copied from r350348, vendor/mandoc/dist/
Replaced:
  vendor/mandoc/20190723/Makefile.depend
     - copied unchanged from r350349, vendor/mandoc/dist/Makefile.depend
  vendor/mandoc/20190723/TODO
     - copied unchanged from r350349, vendor/mandoc/dist/TODO
  vendor/mandoc/20190723/arch.c
     - copied unchanged from r350349, vendor/mandoc/dist/arch.c
  vendor/mandoc/20190723/cgi.c
     - copied unchanged from r350349, vendor/mandoc/dist/cgi.c
  vendor/mandoc/20190723/configure
     - copied unchanged from r350349, vendor/mandoc/dist/configure
  vendor/mandoc/20190723/dbm.c
     - copied unchanged from r350349, vendor/mandoc/dist/dbm.c
  vendor/mandoc/20190723/dbm_map.h
     - copied unchanged from r350349, vendor/mandoc/dist/dbm_map.h
  vendor/mandoc/20190723/eqn.7
     - copied unchanged from r350349, vendor/mandoc/dist/eqn.7
  vendor/mandoc/20190723/eqn_html.c
     - copied unchanged from r350349, vendor/mandoc/dist/eqn_html.c
  vendor/mandoc/20190723/html.c
     - copied unchanged from r350349, vendor/mandoc/dist/html.c
  vendor/mandoc/20190723/html.h
     - copied unchanged from r350349, vendor/mandoc/dist/html.h
  vendor/mandoc/20190723/lib.in
     - copied unchanged from r350349, vendor/mandoc/dist/lib.in
  vendor/mandoc/20190723/main.c
     - copied unchanged from r350349, vendor/mandoc/dist/main.c
  vendor/mandoc/20190723/man.7
     - copied unchanged from r350349, vendor/mandoc/dist/man.7
  vendor/mandoc/20190723/man_html.c
     - copied unchanged from r350349, vendor/mandoc/dist/man_html.c
  vendor/mandoc/20190723/man_term.c
     - copied unchanged from r350349, vendor/mandoc/dist/man_term.c
  vendor/mandoc/20190723/man_validate.c
     - copied unchanged from r350349, vendor/mandoc/dist/man_validate.c
  vendor/mandoc/20190723/mandoc.1
     - copied unchanged from r350349, vendor/mandoc/dist/mandoc.1
  vendor/mandoc/20190723/mandoc.c
     - copied unchanged from r350349, vendor/mandoc/dist/mandoc.c
  vendor/mandoc/20190723/mandoc.css
     - copied unchanged from r350349, vendor/mandoc/dist/mandoc.css
  vendor/mandoc/20190723/mandoc.h
     - copied unchanged from r350349, vendor/mandoc/dist/mandoc.h
  vendor/mandoc/20190723/mandoc_char.7
     - copied unchanged from r350349, vendor/mandoc/dist/mandoc_char.7
  vendor/mandoc/20190723/mandoc_headers.3
     - copied unchanged from r350349, vendor/mandoc/dist/mandoc_headers.3
  vendor/mandoc/20190723/mandoc_msg.c
     - copied unchanged from r350349, vendor/mandoc/dist/mandoc_msg.c
  vendor/mandoc/20190723/mandocdb.c
     - copied unchanged from r350349, vendor/mandoc/dist/mandocdb.c
  vendor/mandoc/20190723/manpath.c
     - copied unchanged from r350349, vendor/mandoc/dist/manpath.c
  vendor/mandoc/20190723/mansearch.c
     - copied unchanged from r350349, vendor/mandoc/dist/mansearch.c
  vendor/mandoc/20190723/mansearch.h
     - copied unchanged from r350349, vendor/mandoc/dist/mansearch.h
  vendor/mandoc/20190723/mdoc.7
     - copied unchanged from r350349, vendor/mandoc/dist/mdoc.7
  vendor/mandoc/20190723/mdoc_argv.c
     - copied unchanged from r350349, vendor/mandoc/dist/mdoc_argv.c
  vendor/mandoc/20190723/mdoc_markdown.c
     - copied unchanged from r350349, vendor/mandoc/dist/mdoc_markdown.c
  vendor/mandoc/20190723/mdoc_term.c
     - copied unchanged from r350349, vendor/mandoc/dist/mdoc_term.c
  vendor/mandoc/20190723/mdoc_validate.c
     - copied unchanged from r350349, vendor/mandoc/dist/mdoc_validate.c
  vendor/mandoc/20190723/out.c
     - copied unchanged from r350349, vendor/mandoc/dist/out.c
  vendor/mandoc/20190723/read.c
     - copied unchanged from r350349, vendor/mandoc/dist/read.c
  vendor/mandoc/20190723/roff.7
     - copied unchanged from r350349, vendor/mandoc/dist/roff.7
  vendor/mandoc/20190723/roff.c
     - copied unchanged from r350349, vendor/mandoc/dist/roff.c
  vendor/mandoc/20190723/roff_html.c
     - copied unchanged from r350349, vendor/mandoc/dist/roff_html.c
  vendor/mandoc/20190723/tag.c
     - copied unchanged from r350349, vendor/mandoc/dist/tag.c
  vendor/mandoc/20190723/tbl_html.c
     - copied unchanged from r350349, vendor/mandoc/dist/tbl_html.c
  vendor/mandoc/20190723/tbl_term.c
     - copied unchanged from r350349, vendor/mandoc/dist/tbl_term.c
  vendor/mandoc/20190723/term.c
     - copied unchanged from r350349, vendor/mandoc/dist/term.c
Deleted:
  vendor/mandoc/20190723/libroff.h

Copied: vendor/mandoc/20190723/Makefile.depend (from r350349, vendor/mandoc/dist/Makefile.depend)
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ vendor/mandoc/20190723/Makefile.depend	Fri Jul 26 09:53:21 2019	(r350350, copy of r350349, vendor/mandoc/dist/Makefile.depend)
@@ -0,0 +1,81 @@
+arch.o: arch.c config.h roff.h
+att.o: att.c config.h roff.h libmdoc.h
+catman.o: catman.c config.h compat_fts.h
+cgi.o: cgi.c config.h mandoc_aux.h mandoc.h roff.h mdoc.h man.h mandoc_parse.h main.h manconf.h mansearch.h cgi.h
+chars.o: chars.c config.h mandoc.h mandoc_aux.h mandoc_ohash.h compat_ohash.h libmandoc.h
+compat_err.o: compat_err.c config.h
+compat_fts.o: compat_fts.c config.h compat_fts.h
+compat_getline.o: compat_getline.c config.h
+compat_getsubopt.o: compat_getsubopt.c config.h
+compat_isblank.o: compat_isblank.c config.h
+compat_mkdtemp.o: compat_mkdtemp.c config.h
+compat_ohash.o: compat_ohash.c config.h compat_ohash.h
+compat_progname.o: compat_progname.c config.h
+compat_reallocarray.o: compat_reallocarray.c config.h
+compat_recallocarray.o: compat_recallocarray.c config.h
+compat_strcasestr.o: compat_strcasestr.c config.h
+compat_stringlist.o: compat_stringlist.c config.h compat_stringlist.h
+compat_strlcat.o: compat_strlcat.c config.h
+compat_strlcpy.o: compat_strlcpy.c config.h
+compat_strndup.o: compat_strndup.c config.h
+compat_strsep.o: compat_strsep.c config.h
+compat_strtonum.o: compat_strtonum.c config.h
+compat_vasprintf.o: compat_vasprintf.c config.h
+dba.o: dba.c config.h mandoc_aux.h mandoc_ohash.h compat_ohash.h mansearch.h dba_write.h dba_array.h dba.h
+dba_array.o: dba_array.c mandoc_aux.h dba_write.h dba_array.h
+dba_read.o: dba_read.c mandoc_aux.h mansearch.h dba_array.h dba.h dbm.h
+dba_write.o: dba_write.c config.h dba_write.h
+dbm.o: dbm.c config.h mansearch.h dbm_map.h dbm.h
+dbm_map.o: dbm_map.c config.h mansearch.h dbm_map.h dbm.h
+demandoc.o: demandoc.c config.h mandoc.h roff.h man.h mdoc.h mandoc_parse.h
+eqn.o: eqn.c config.h mandoc_aux.h mandoc.h roff.h eqn.h libmandoc.h eqn_parse.h
+eqn_html.o: eqn_html.c config.h mandoc.h roff.h eqn.h out.h html.h
+eqn_term.o: eqn_term.c config.h eqn.h out.h term.h
+html.o: html.c config.h mandoc_aux.h mandoc_ohash.h compat_ohash.h mandoc.h roff.h out.h html.h manconf.h main.h
+lib.o: lib.c config.h roff.h libmdoc.h lib.in
+main.o: main.c config.h mandoc_aux.h mandoc.h mandoc_xr.h roff.h mdoc.h man.h mandoc_parse.h tag.h main.h manconf.h mansearch.h
+man.o: man.c config.h mandoc_aux.h mandoc.h roff.h man.h libmandoc.h roff_int.h libman.h
+man_html.o: man_html.c config.h mandoc_aux.h mandoc.h roff.h man.h out.h html.h main.h
+man_macro.o: man_macro.c config.h mandoc.h roff.h man.h libmandoc.h roff_int.h libman.h
+man_term.o: man_term.c config.h mandoc_aux.h mandoc.h roff.h man.h out.h term.h tag.h main.h
+man_validate.o: man_validate.c config.h mandoc_aux.h mandoc.h roff.h man.h libmandoc.h roff_int.h libman.h
+mandoc.o: mandoc.c config.h mandoc_aux.h mandoc.h roff.h libmandoc.h roff_int.h
+mandoc_aux.o: mandoc_aux.c config.h mandoc.h mandoc_aux.h
+mandoc_msg.o: mandoc_msg.c config.h mandoc.h
+mandoc_ohash.o: mandoc_ohash.c mandoc_aux.h mandoc_ohash.h compat_ohash.h
+mandoc_xr.o: mandoc_xr.c mandoc_aux.h mandoc_ohash.h compat_ohash.h mandoc_xr.h
+mandocd.o: mandocd.c config.h mandoc.h roff.h mdoc.h man.h mandoc_parse.h main.h manconf.h
+mandocdb.o: mandocdb.c config.h compat_fts.h mandoc_aux.h mandoc_ohash.h compat_ohash.h mandoc.h roff.h mdoc.h man.h mandoc_parse.h manconf.h mansearch.h dba_array.h dba.h
+manpath.o: manpath.c config.h mandoc_aux.h mandoc.h manconf.h
+mansearch.o: mansearch.c config.h mandoc_aux.h mandoc_ohash.h compat_ohash.h manconf.h mansearch.h dbm.h
+mdoc.o: mdoc.c config.h mandoc_aux.h mandoc.h roff.h mdoc.h libmandoc.h roff_int.h libmdoc.h
+mdoc_argv.o: mdoc_argv.c config.h mandoc_aux.h mandoc.h roff.h mdoc.h libmandoc.h roff_int.h libmdoc.h
+mdoc_html.o: mdoc_html.c config.h mandoc_aux.h mandoc.h roff.h mdoc.h out.h html.h main.h
+mdoc_macro.o: mdoc_macro.c config.h mandoc.h roff.h mdoc.h libmandoc.h roff_int.h libmdoc.h
+mdoc_man.o: mdoc_man.c config.h mandoc_aux.h mandoc.h roff.h mdoc.h man.h out.h main.h
+mdoc_markdown.o: mdoc_markdown.c mandoc_aux.h mandoc.h roff.h mdoc.h main.h
+mdoc_state.o: mdoc_state.c mandoc.h roff.h mdoc.h libmandoc.h roff_int.h libmdoc.h
+mdoc_term.o: mdoc_term.c config.h mandoc_aux.h roff.h mdoc.h out.h term.h tag.h main.h
+mdoc_validate.o: mdoc_validate.c config.h mandoc_aux.h mandoc.h mandoc_xr.h roff.h mdoc.h libmandoc.h roff_int.h libmdoc.h
+msec.o: msec.c config.h mandoc.h libmandoc.h msec.in
+out.o: out.c config.h mandoc_aux.h tbl.h out.h
+preconv.o: preconv.c config.h mandoc.h roff.h mandoc_parse.h libmandoc.h
+read.o: read.c config.h mandoc_aux.h mandoc.h roff.h mdoc.h man.h mandoc_parse.h libmandoc.h roff_int.h
+roff.o: roff.c config.h mandoc_aux.h mandoc_ohash.h compat_ohash.h mandoc.h roff.h mandoc_parse.h libmandoc.h roff_int.h tbl_parse.h eqn_parse.h predefs.in
+roff_html.o: roff_html.c mandoc.h roff.h out.h html.h
+roff_term.o: roff_term.c mandoc.h roff.h out.h term.h
+roff_validate.o: roff_validate.c mandoc.h roff.h libmandoc.h roff_int.h
+soelim.o: soelim.c config.h compat_stringlist.h
+st.o: st.c config.h mandoc.h roff.h libmdoc.h
+tag.o: tag.c config.h mandoc_aux.h mandoc_ohash.h compat_ohash.h mandoc.h tag.h
+tbl.o: tbl.c config.h mandoc_aux.h mandoc.h tbl.h libmandoc.h tbl_parse.h tbl_int.h
+tbl_data.o: tbl_data.c config.h mandoc_aux.h mandoc.h tbl.h libmandoc.h tbl_int.h
+tbl_html.o: tbl_html.c config.h mandoc.h roff.h tbl.h out.h html.h
+tbl_layout.o: tbl_layout.c config.h mandoc_aux.h mandoc.h tbl.h libmandoc.h tbl_int.h
+tbl_opts.o: tbl_opts.c config.h mandoc.h tbl.h libmandoc.h tbl_int.h
+tbl_term.o: tbl_term.c config.h mandoc.h tbl.h out.h term.h
+term.o: term.c config.h mandoc.h mandoc_aux.h out.h term.h main.h
+term_ascii.o: term_ascii.c config.h mandoc.h mandoc_aux.h out.h term.h manconf.h main.h
+term_ps.o: term_ps.c config.h mandoc_aux.h out.h term.h manconf.h main.h
+term_tab.o: term_tab.c mandoc_aux.h out.h term.h
+tree.o: tree.c config.h mandoc.h roff.h mdoc.h man.h tbl.h eqn.h main.h

Copied: vendor/mandoc/20190723/TODO (from r350349, vendor/mandoc/dist/TODO)
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ vendor/mandoc/20190723/TODO	Fri Jul 26 09:53:21 2019	(r350350, copy of r350349, vendor/mandoc/dist/TODO)
@@ -0,0 +1,583 @@
+************************************************************************
+* Official mandoc TODO.
+* $Id: TODO,v 1.295 2019/06/11 16:04:36 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 *
+
+- .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 *
+
+- \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 ***
+
+- .als only works for macros in mandoc, not for user-defined strings.
+  Also, the "val" field in struct roffkv would have to be replaced
+  with a pointer to a reference-counted wrapper, and an alias
+  would have to point to the same wrapper as the original.
+  .als to undefined does nothing; the alias is not created.
+  .rm'ing the original leaves the alias to point to the old value.
+  .de .als .de changes both, but
+  .de .als .rm .de only changes the new value, not the alias.
+  Found in groffer(1) version 1.19
+  Jan Stary 20 Apr 2019 20:16:54 +0200
+  loc *  exist **  algo **  size **  imp *
+
+- roff string condition comparisons fail when vars contain quotes:
+  .ds s '
+  .if '\*s'' \&...
+  hard to fix because of the basic architecture (string replacement
+  happens before roff(7) syntax parsing)
+  Found in groffer(1) version 1.19
+  Jan Stary 20 Apr 2019 20:16:54 +0200
+  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 -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 ."
+
+- 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 man features -----------------------------------------------
+
+- groff_www(7) .MTO and .URL
+  These macros were used by the GNU grep(1) man page.
+  The groff_www(7) manual page itself uses them, too.
+  We should probably *not* add them to mandoc.
+  Just mentioning this here to keep track of the abuse.
+  Laura Morales <lauretas at mail dot com> 20 Apr 2018 07:33:02 +0200
+  loc **  exist *  algo *  size **  imp *
+
+--- missing tbl features -----------------------------------------------
+
+- vertical centering in cells vertically spanned with ^
+  pali dot rohar at gmail dot com 16 Jul 2018 13:03:35 +0200
+  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, mostly macros in tbl(7).
+  loc *  exist **  algo **  size **  imp ***
+
+- look what Joerg Schilling manual pages use
+  Thu, 19 Mar 2015 18:31:48 +0100
+
+--- 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.
+  This may not be the ideal solution after all: eqn(7) matrices
+  are lists of columns, so Avi's proposal would show each *column*
+  on its own *line*, which is likely to cause confusion.
+  A better solution, but much harder to implement, would be to
+  actually show the coordinates of column vectors on different
+  terminal output lines, using the clumnated output facilities
+  developed for .Bl -tag, .Bl -column, and also used for tbl(7).
+  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 **
+
+- GNU eqn converts some operators to special characters, for example,
+  input HYPHEN-MINUS becomes output \(mi, unless it is part of a
+  quoted word.  mandoc(1) only does this when the operator is
+  surrounded by blanks, not when it is part of an unquoted word.
+  Also, check whether there are more such cases (e.g., +?).
+  reported by bentley@  20 Jun 2017 02:04:29 -0600
+  loc *  exist **  algo **  size *  imp *
+
+- Primes, opprime, and '
+  bentley@  Thu, 13 Jul 2017 23:14:20 -0600
+
+--- missing misc features ----------------------------------------------
+
+- man -ks 1,8 route; kn@ Jul 13, 2018 orally
+
+- 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 *
+
+--- 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 compatibility with
+  https://git.sr.ht/~sircmpwn/scdoc
+
+- 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
+
+- implicit whitespace around inline equations
+  example code:  where '$times$' denotes matrix multiplication
+  must not have an HTML line break, nor a blank, before <math>
+  partial solution: html.c {"math", HTML_NLINSIDE | HTML_INDENT},
+  bentley@  Thu, 13 Jul 2017 19:00:59 -0600
+
+- 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)
+  This will become easier once escape sequences are represented
+  by syntax tree nodes.
+  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 **
+
+- 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 **
+
+- 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
+************************************************************************
+
+- warn about duplicate .Sh/.Ss heads
+  gre(4): Rename duplicate sections 20 Apr 2018 15:27:33 +0200
+  loc *  exist *  algo *  size *  imp **
+
+- style message about macros inside .Bd -literal and .Dl, in particular
+  font changing macros like .Cm, .Ar, .Fa (from the mdoclint TODO)
+
+- style message about mismatches between the section number in the
+  file name (if it is known) and the section number in .Dt
+  (from the mdoclint TODO)
+
+- style message about NULL without .Dv (from the mdoclint TODO)
+
+- style message about error constants without .Er (from the mdoclint TODO)
+
+- warn when .Sh or .Ss contain other macros
+  Steffen Nurpmeso, savannah.gnu.org/bugs/index.php?45034
+  loc *  exist *  algo *  size *  imp **
+
+- style message about violations of the convention
+  .An name Aq Mt localpart@domain in AUTHORS (from the mdoclint TODO)
+
+- 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 punctuation - e.g. ',' and ';' - at the beginning
+  of a text line, if it is likely intended to follow the preceding
+  output without intervening whitespace, in particular after a
+  macro line (from the mdoclint TODO)
+
+- makewhatis -p complains about language subdirectories:
+  /usr/local/man//ru: Unknown directory part
+
+
+************************************************************************
+* 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
+************************************************************************
+
+- 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
+
+- Is it possible to further simplify ENDBODY_SPACE?
+
+- Find better ways to prevent endless loops
+  in roff(7) macro and string expansion.
+
+- make buffers for parsing functions const
+  christos@ via wiz@  Fri, 18 Dec 2015 17:10:01 +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.
+ - Privilege separation (see OpenSSH).
+ - Enable caching support via HTTP 304 and If-Modified-Since.
+
+************************************************************************
+* to improve in the groff_mdoc(7) macros
+************************************************************************
+
+- .Cd # arch1, arch2 in section 4 pages:
+  find better way to indicate multiple architectures, maybe:
+  allow .Dt vgafb 4 "macppc sparc64"
+  already shown as "Device Drivers Manual (macppc sparc64)"
+  for apropos, make that "vgafb(4) - macppc # sparc64" instead of "- all"
+  groff can be made to show multiple arches, too, but it is
+  tedious to do the string parsing in roff code...
+  jmc@ 23 Apr 2018 07:24:52 +0100 [man for vgafb(4)...]
+  loc **  exist **  algo *  size *  imp ***
+
+- use uname(1) to set doc-default-operating-system at install time
+  tobimensch  Mon, 1 Dec 2014 00:25:07 +0100
+
+- apostrophe (39), circumflex (94), grave (96), tilde (126)
+  in manuals: \(aq, \(ha, \`, \(ti
+  Re: [Groff] ASCII Minus Sign in man Pages.
+  bentley@ 26 Apr 2017 10:02:06 -0600
+  Do we need to fix existing manuals?
+  Do we need to fix the definition of the mdoc(7) language?

Copied: vendor/mandoc/20190723/arch.c (from r350349, vendor/mandoc/dist/arch.c)
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ vendor/mandoc/20190723/arch.c	Fri Jul 26 09:53:21 2019	(r350350, copy of r350349, vendor/mandoc/dist/arch.c)
@@ -0,0 +1,54 @@
+/*	$Id: arch.c,v 1.15 2019/05/21 07:52:00 schwarze Exp $ */
+/*
+ * Copyright (c) 2017, 2019 Ingo Schwarze <schwarze@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <string.h>
+
+#include "roff.h"
+
+int
+arch_valid(const char *arch, enum mandoc_os os)
+{
+	const char *openbsd_arch[] = {
+		"alpha", "amd64", "arm64", "armv7", "hppa", "i386",
+		"landisk", "loongson", "luna88k", "macppc", "mips64",
+		"octeon", "sgi", "sparc64", NULL
+	};
+	const char *netbsd_arch[] = {
+		"acorn26", "acorn32", "algor", "alpha", "amiga",
+		"arc", "atari",
+		"bebox", "cats", "cesfic", "cobalt", "dreamcast",
+		"emips", "evbarm", "evbmips", "evbppc", "evbsh3", "evbsh5",
+		"hp300", "hpcarm", "hpcmips", "hpcsh", "hppa",
+		"i386", "ibmnws", "luna68k",
+		"mac68k", "macppc", "mipsco", "mmeye", "mvme68k", "mvmeppc",
+		"netwinder", "news68k", "newsmips", "next68k",
+		"pc532", "playstation2", "pmax", "pmppc", "prep",
+		"sandpoint", "sbmips", "sgimips", "shark",
+		"sparc", "sparc64", "sun2", "sun3",
+		"vax", "walnut", "x68k", "x86", "x86_64", "xen", NULL
+	};
+	const char **arches[] = { NULL, netbsd_arch, openbsd_arch };
+	const char **arch_p;
+
+	if ((arch_p = arches[os]) == NULL)
+		return 1;
+	for (; *arch_p != NULL; arch_p++)
+		if (strcmp(*arch_p, arch) == 0)
+			return 1;
+	return 0;
+}

Copied: vendor/mandoc/20190723/cgi.c (from r350349, vendor/mandoc/dist/cgi.c)
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ vendor/mandoc/20190723/cgi.c	Fri Jul 26 09:53:21 2019	(r350350, copy of r350349, vendor/mandoc/dist/cgi.c)
@@ -0,0 +1,1253 @@
+/*	$Id: cgi.c,v 1.167 2019/07/10 12:49:20 schwarze Exp $ */
+/*
+ * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2014, 2015, 2016, 2017, 2018 Ingo Schwarze <schwarze@usta.de>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/time.h>
+
+#include <ctype.h>
+#if HAVE_ERR
+#include <err.h>
+#endif
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "man.h"
+#include "mandoc_parse.h"
+#include "main.h"
+#include "manconf.h"
+#include "mansearch.h"
+#include "cgi.h"
+
+/*
+ * A query as passed to the search function.
+ */
+struct	query {
+	char		*manpath; /* desired manual directory */
+	char		*arch; /* architecture */
+	char		*sec; /* manual section */
+	char		*query; /* unparsed query expression */
+	int		 equal; /* match whole names, not substrings */
+};
+
+struct	req {
+	struct query	  q;
+	char		**p; /* array of available manpaths */
+	size_t		  psz; /* number of available manpaths */
+	int		  isquery; /* QUERY_STRING used, not PATH_INFO */
+};
+
+enum	focus {
+	FOCUS_NONE = 0,
+	FOCUS_QUERY
+};
+
+static	void		 html_print(const char *);
+static	void		 html_putchar(char);
+static	int		 http_decode(char *);
+static	void		 http_encode(const char *p);
+static	void		 parse_manpath_conf(struct req *);
+static	void		 parse_path_info(struct req *req, const char *path);
+static	void		 parse_query_string(struct req *, const char *);
+static	void		 pg_error_badrequest(const char *);
+static	void		 pg_error_internal(void);
+static	void		 pg_index(const struct req *);
+static	void		 pg_noresult(const struct req *, const char *);
+static	void		 pg_redirect(const struct req *, const char *);
+static	void		 pg_search(const struct req *);
+static	void		 pg_searchres(const struct req *,
+				struct manpage *, size_t);
+static	void		 pg_show(struct req *, const char *);
+static	void		 resp_begin_html(int, const char *, const char *);
+static	void		 resp_begin_http(int, const char *);
+static	void		 resp_catman(const struct req *, const char *);
+static	void		 resp_copy(const char *);
+static	void		 resp_end_html(void);
+static	void		 resp_format(const struct req *, const char *);
+static	void		 resp_searchform(const struct req *, enum focus);
+static	void		 resp_show(const struct req *, const char *);
+static	void		 set_query_attr(char **, char **);
+static	int		 validate_arch(const char *);
+static	int		 validate_filename(const char *);
+static	int		 validate_manpath(const struct req *, const char *);
+static	int		 validate_urifrag(const char *);
+
+static	const char	 *scriptname = SCRIPT_NAME;
+
+static	const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
+static	const char *const sec_numbers[] = {
+    "0", "1", "2", "3", "3p", "4", "5", "6", "7", "8", "9"
+};
+static	const char *const sec_names[] = {
+    "All Sections",
+    "1 - General Commands",
+    "2 - System Calls",
+    "3 - Library Functions",
+    "3p - Perl Library",
+    "4 - Device Drivers",
+    "5 - File Formats",
+    "6 - Games",
+    "7 - Miscellaneous Information",
+    "8 - System Manager\'s Manual",
+    "9 - Kernel Developer\'s Manual"
+};
+static	const int sec_MAX = sizeof(sec_names) / sizeof(char *);
+
+static	const char *const arch_names[] = {
+    "amd64",       "alpha",       "armv7",	"arm64",
+    "hppa",        "i386",        "landisk",
+    "loongson",    "luna88k",     "macppc",      "mips64",
+    "octeon",      "sgi",         "socppc",      "sparc64",
+    "amiga",       "arc",         "armish",      "arm32",
+    "atari",       "aviion",      "beagle",      "cats",
+    "hppa64",      "hp300",
+    "ia64",        "mac68k",      "mvme68k",     "mvme88k",
+    "mvmeppc",     "palm",        "pc532",       "pegasos",
+    "pmax",        "powerpc",     "solbourne",   "sparc",
+    "sun3",        "vax",         "wgrisc",      "x68k",
+    "zaurus"
+};
+static	const int arch_MAX = sizeof(arch_names) / sizeof(char *);
+
+/*
+ * Print a character, escaping HTML along the way.
+ * This will pass non-ASCII straight to output: be warned!
+ */
+static void
+html_putchar(char c)
+{
+
+	switch (c) {
+	case '"':
+		printf("&quot;");
+		break;
+	case '&':
+		printf("&amp;");
+		break;
+	case '>':
+		printf("&gt;");
+		break;
+	case '<':
+		printf("&lt;");
+		break;
+	default:
+		putchar((unsigned char)c);
+		break;
+	}
+}
+
+/*
+ * Call through to html_putchar().
+ * Accepts NULL strings.
+ */
+static void
+html_print(const char *p)
+{
+
+	if (NULL == p)
+		return;
+	while ('\0' != *p)
+		html_putchar(*p++);
+}
+
+/*
+ * Transfer the responsibility for the allocated string *val
+ * to the query structure.
+ */
+static void
+set_query_attr(char **attr, char **val)
+{
+
+	free(*attr);
+	if (**val == '\0') {
+		*attr = NULL;
+		free(*val);
+	} else
+		*attr = *val;
+	*val = NULL;
+}
+
+/*
+ * Parse the QUERY_STRING for key-value pairs
+ * and store the values into the query structure.
+ */
+static void
+parse_query_string(struct req *req, const char *qs)
+{
+	char		*key, *val;
+	size_t		 keysz, valsz;
+
+	req->isquery	= 1;
+	req->q.manpath	= NULL;
+	req->q.arch	= NULL;
+	req->q.sec	= NULL;
+	req->q.query	= NULL;
+	req->q.equal	= 1;
+
+	key = val = NULL;
+	while (*qs != '\0') {
+
+		/* Parse one key. */
+
+		keysz = strcspn(qs, "=;&");
+		key = mandoc_strndup(qs, keysz);
+		qs += keysz;
+		if (*qs != '=')
+			goto next;
+
+		/* Parse one value. */
+
+		valsz = strcspn(++qs, ";&");
+		val = mandoc_strndup(qs, valsz);
+		qs += valsz;
+
+		/* Decode and catch encoding errors. */
+
+		if ( ! (http_decode(key) && http_decode(val)))
+			goto next;
+
+		/* Handle key-value pairs. */
+
+		if ( ! strcmp(key, "query"))
+			set_query_attr(&req->q.query, &val);
+
+		else if ( ! strcmp(key, "apropos"))
+			req->q.equal = !strcmp(val, "0");
+
+		else if ( ! strcmp(key, "manpath")) {
+#ifdef COMPAT_OLDURI
+			if ( ! strncmp(val, "OpenBSD ", 8)) {
+				val[7] = '-';
+				if ('C' == val[8])
+					val[8] = 'c';
+			}
+#endif
+			set_query_attr(&req->q.manpath, &val);
+		}
+
+		else if ( ! (strcmp(key, "sec")
+#ifdef COMPAT_OLDURI
+		    && strcmp(key, "sektion")
+#endif
+		    )) {
+			if ( ! strcmp(val, "0"))
+				*val = '\0';
+			set_query_attr(&req->q.sec, &val);
+		}
+
+		else if ( ! strcmp(key, "arch")) {
+			if ( ! strcmp(val, "default"))
+				*val = '\0';
+			set_query_attr(&req->q.arch, &val);
+		}
+
+		/*
+		 * The key must be freed in any case.

*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***



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