Import mandoc snapshot 2019-07-23vendor/mandoc/20190723vendor/mandoc

43 files changed, 892 insertions, 635 deletions

diff --git a/Makefile.depend b/Makefile.depend
index a0898095ae7a..3540aeda822c 100644
--- a/Makefile.depend
+++ b/Makefile.depend
@@ -29,7 +29,7 @@ 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 eqn.h out.h html.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
@@ -37,16 +37,16 @@ main.o: main.c config.h mandoc_aux.h mandoc.h mandoc_xr.h roff.h mdoc.h man.h ma
 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 roff.h man.h out.h term.h main.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 mandoc.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 manconf.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
@@ -67,10 +67,10 @@ 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 tag.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 tbl.h out.h html.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
diff --git a/TODO b/TODO
index 063e2789d2c5..049e6a4f2beb 100644
--- a/TODO
+++ b/TODO
@@ -1,6 +1,6 @@
 ************************************************************************
 * Official mandoc TODO.
-* $Id: TODO,v 1.289 2019/03/04 13:01:57 schwarze Exp $
+* $Id: TODO,v 1.295 2019/06/11 16:04:36 schwarze Exp $
 ************************************************************************
 
 Many issues are annotated for difficulty as follows:
@@ -62,6 +62,27 @@ are mere guesses, and some may be wrong.
   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
@@ -264,6 +285,9 @@ are mere guesses, and some may be wrong.
   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
 
diff --git a/arch.c b/arch.c
index 56b937ec8412..551c86796a21 100644
--- a/arch.c
+++ b/arch.c
@@ -1,4 +1,4 @@
-/*	$Id: arch.c,v 1.14 2019/03/04 13:01:57 schwarze Exp $ */
+/*	$Id: arch.c,v 1.15 2019/05/21 07:52:00 schwarze Exp $ */
 /*
  * Copyright (c) 2017, 2019 Ingo Schwarze <schwarze@openbsd.org>
  *
@@ -26,7 +26,7 @@ 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", "socppc", "sparc64", NULL
+		"octeon", "sgi", "sparc64", NULL
 	};
 	const char *netbsd_arch[] = {
 		"acorn26", "acorn32", "algor", "alpha", "amiga",
diff --git a/cgi.c b/cgi.c
index 0af0f1255d40..4762f819d57d 100644
--- a/cgi.c
+++ b/cgi.c
@@ -1,4 +1,4 @@
-/*	$Id: cgi.c,v 1.166 2019/03/06 12:32:41 schwarze Exp $ */
+/*	$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>
@@ -869,7 +869,6 @@ resp_format(const struct req *req, const char *file)
 	memset(&conf, 0, sizeof(conf));
 	conf.fragment = 1;
 	conf.style = mandoc_strdup(CSS_DIR "/mandoc.css");
-	conf.toc = 1;
 	usepath = strcmp(req->q.manpath, req->p[0]);
 	mandoc_asprintf(&conf.man, "/%s%s%s%s%%N.%%S",
 	    scriptname, *scriptname == '\0' ? "" : "/",
diff --git a/configure b/configure
index 5507de7021b8..2df028da0510 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# $Id: configure,v 1.70 2019/03/06 16:04:31 schwarze Exp $
+# $Id: configure,v 1.71 2019/07/01 22:56:24 schwarze Exp $
 #
 # Copyright (c) 2014-2019 Ingo Schwarze <schwarze@openbsd.org>
 #
@@ -529,7 +529,7 @@ fi
 	echo "extern	char	 *mkdtemp(char *);"
 
 if [ ${HAVE_PROGNAME} -eq 0 ]; then
-	echo "extern 	const char *getprogname(void);"
+	echo "extern	const char *getprogname(void);"
 	echo "extern	void	  setprogname(const char *);"
 fi
 
diff --git a/dbm.c b/dbm.c
index f6b1259ef5ad..7dc07d0674ad 100644
--- a/dbm.c
+++ b/dbm.c
@@ -1,4 +1,4 @@
-/*	$Id: dbm.c,v 1.6 2018/11/19 19:22:07 schwarze Exp $ */
+/*	$Id: dbm.c,v 1.7 2019/07/01 22:56:24 schwarze Exp $ */
 /*
  * Copyright (c) 2016 Ingo Schwarze <schwarze@openbsd.org>
  *
@@ -233,7 +233,7 @@ static struct dbm_res
 page_bytitle(enum iter arg_iter, const struct dbm_match *arg_match)
 {
 	static const struct dbm_match	*match;
-	static const char		*cp;	
+	static const char		*cp;
 	static int32_t			 ip;
 	struct dbm_res			 res = {-1, 0};
 
@@ -315,7 +315,7 @@ page_byarch(const struct dbm_match *arg_match)
 	static const struct dbm_match	*match;
 	struct dbm_res			 res = {-1, 0};
 	static int32_t			 ip;
-	const char			*cp;	
+	const char			*cp;
 
 	/* Initialize for a new iteration. */
 
diff --git a/dbm_map.h b/dbm_map.h
index 9768fc5f2dcc..dc072aef5463 100644
--- a/dbm_map.h
+++ b/dbm_map.h
@@ -1,4 +1,4 @@
-/*	$Id: dbm_map.h,v 1.1 2016/07/19 21:31:55 schwarze Exp $ */
+/*	$Id: dbm_map.h,v 1.2 2019/07/01 22:56:24 schwarze Exp $ */
 /*
  * Copyright (c) 2016 Ingo Schwarze <schwarze@openbsd.org>
  *
@@ -14,7 +14,7 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
- * Private interface for low-level routines for the map-based version 
+ * Private interface for low-level routines for the map-based version
  * of the mandoc database, for read-only access.
  * To be used by dbm*.c only.
  */
diff --git a/eqn.7 b/eqn.7
index 244903c56fe9..c9fe483b1719 100644
--- a/eqn.7
+++ b/eqn.7
@@ -1,4 +1,4 @@
-.\"	$Id: eqn.7,v 1.37 2017/09/04 10:35:27 schwarze Exp $
+.\"	$Id: eqn.7,v 1.38 2019/04/23 17:57:49 schwarze Exp $
 .\"
 .\" Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 .\" Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
@@ -15,7 +15,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: September 4 2017 $
+.Dd $Mdocdate: April 23 2019 $
 .Dt EQN 7
 .Os
 .Sh NAME
@@ -470,7 +470,7 @@ commands are also ignored.
 .%T System for Typesetting Mathematics
 .%J Communications of the ACM
 .%V 18
-.%P 151\(en157
+.%P pp. 151\(en157
 .%D March, 1975
 .Re
 .Rs
diff --git a/eqn_html.c b/eqn_html.c
index 1fe41ecbfac5..64d06649997f 100644
--- a/eqn_html.c
+++ b/eqn_html.c
@@ -1,4 +1,4 @@
-/*	$Id: eqn_html.c,v 1.18 2018/12/13 05:23:38 schwarze Exp $ */
+/*	$Id: eqn_html.c,v 1.19 2019/03/17 18:21:45 schwarze Exp $ */
 /*
  * Copyright (c) 2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -26,6 +26,7 @@
 #include <string.h>
 
 #include "mandoc.h"
+#include "roff.h"
 #include "eqn.h"
 #include "out.h"
 #include "html.h"
diff --git a/html.c b/html.c
index 1302972a4e13..9c45d3162eaf 100644
--- a/html.c
+++ b/html.c
@@ -1,4 +1,4 @@
-/*	$Id: html.c,v 1.254 2019/03/03 13:02:11 schwarze Exp $ */
+/*	$Id: html.c,v 1.255 2019/04/30 15:53:00 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2011-2015, 2017-2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -120,6 +120,7 @@ static	void	 print_ctag(struct html *, struct tag *);
 static	int	 print_escape(struct html *, char);
 static	int	 print_encode(struct html *, const char *, const char *, int);
 static	void	 print_href(struct html *, const char *, const char *, int);
+static	void	 print_metaf(struct html *);
 
 
 void *
@@ -222,55 +223,49 @@ print_gen_head(struct html *h)
 	print_tagq(h, t);
 }
 
-void
-print_metaf(struct html *h, enum mandoc_esc deco)
+int
+html_setfont(struct html *h, enum mandoc_esc font)
 {
-	enum htmlfont	 font;
-
-	switch (deco) {
+	switch (font) {
 	case ESCAPE_FONTPREV:
 		font = h->metal;
 		break;
 	case ESCAPE_FONTITALIC:
-		font = HTMLFONT_ITALIC;
-		break;
 	case ESCAPE_FONTBOLD:
-		font = HTMLFONT_BOLD;
-		break;
 	case ESCAPE_FONTBI:
-		font = HTMLFONT_BI;
-		break;
 	case ESCAPE_FONTCW:
-		font = HTMLFONT_CW;
+	case ESCAPE_FONTROMAN:
 		break;
 	case ESCAPE_FONT:
-	case ESCAPE_FONTROMAN:
-		font = HTMLFONT_NONE;
+		font = ESCAPE_FONTROMAN;
 		break;
 	default:
-		return;
+		return 0;
 	}
+	h->metal = h->metac;
+	h->metac = font;
+	return 1;
+}
 
+static void
+print_metaf(struct html *h)
+{
 	if (h->metaf) {
 		print_tagq(h, h->metaf);
 		h->metaf = NULL;
 	}
-
-	h->metal = h->metac;
-	h->metac = font;
-
-	switch (font) {
-	case HTMLFONT_ITALIC:
+	switch (h->metac) {
+	case ESCAPE_FONTITALIC:
 		h->metaf = print_otag(h, TAG_I, "");
 		break;
-	case HTMLFONT_BOLD:
+	case ESCAPE_FONTBOLD:
 		h->metaf = print_otag(h, TAG_B, "");
 		break;
-	case HTMLFONT_BI:
+	case ESCAPE_FONTBI:
 		h->metaf = print_otag(h, TAG_B, "");
 		print_otag(h, TAG_I, "");
 		break;
-	case HTMLFONT_CW:
+	case ESCAPE_FONTCW:
 		h->metaf = print_otag(h, TAG_SPAN, "c", "Li");
 		break;
 	default:
@@ -479,7 +474,8 @@ print_encode(struct html *h, const char *p, const char *pend, int norecurse)
 		case ESCAPE_FONTROMAN:
 			if (0 == norecurse) {
 				h->flags |= HTML_NOSPACE;
-				print_metaf(h, esc);
+				if (html_setfont(h, esc))
+					print_metaf(h);
 				h->flags &= ~HTML_NOSPACE;
 			}
 			continue;
@@ -806,27 +802,9 @@ print_text(struct html *h, const char *word)
 			print_word(h, "&#x00A0;");
 	}
 
-	assert(NULL == h->metaf);
-	switch (h->metac) {
-	case HTMLFONT_ITALIC:
-		h->metaf = print_otag(h, TAG_I, "");
-		break;
-	case HTMLFONT_BOLD:
-		h->metaf = print_otag(h, TAG_B, "");
-		break;
-	case HTMLFONT_BI:
-		h->metaf = print_otag(h, TAG_B, "");
-		print_otag(h, TAG_I, "");
-		break;
-	case HTMLFONT_CW:
-		h->metaf = print_otag(h, TAG_SPAN, "c", "Li");
-		break;
-	default:
-		print_indent(h);
-		break;
-	}
-
-	assert(word);
+	assert(h->metaf == NULL);
+	print_metaf(h);
+	print_indent(h);
 	if ( ! print_encode(h, word, NULL, 0)) {
 		if ( ! (h->flags & HTML_NONOSPACE))
 			h->flags &= ~HTML_NOSPACE;
@@ -834,7 +812,7 @@ print_text(struct html *h, const char *word)
 	} else
 		h->flags |= HTML_NOSPACE | HTML_NONEWLINE;
 
-	if (h->metaf) {
+	if (h->metaf != NULL) {
 		print_tagq(h, h->metaf);
 		h->metaf = NULL;
 	}
diff --git a/html.h b/html.h
index a6bf89119057..242a63a8d624 100644
--- a/html.h
+++ b/html.h
@@ -1,4 +1,4 @@
-/*	$Id: html.h,v 1.102 2019/03/01 10:57:18 schwarze Exp $ */
+/*	$Id: html.h,v 1.103 2019/04/30 15:53:00 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2017, 2018, 2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -69,15 +69,6 @@ enum	htmltag {
 	TAG_MAX
 };
 
-enum	htmlfont {
-	HTMLFONT_NONE = 0,
-	HTMLFONT_BOLD,
-	HTMLFONT_ITALIC,
-	HTMLFONT_BI,
-	HTMLFONT_CW,
-	HTMLFONT_MAX
-};
-
 struct	tag {
 	struct tag	 *next;
 	int		  refcnt;
@@ -111,8 +102,8 @@ struct	html {
 	char		 *base_includes; /* base for include href */
 	char		 *style; /* style-sheet URI */
 	struct tag	 *metaf; /* current open font scope */
-	enum htmlfont	  metal; /* last used font */
-	enum htmlfont	  metac; /* current font mode */
+	enum mandoc_esc	  metal; /* last used font */
+	enum mandoc_esc	  metac; /* current font mode */
 	int		  oflags; /* output options */
 #define	HTML_FRAGMENT	 (1 << 0) /* don't emit HTML/HEAD/BODY */
 #define	HTML_TOC	 (1 << 1) /* emit a table of contents */
@@ -128,7 +119,6 @@ void		  roff_html_pre(struct html *, const struct roff_node *);
 void		  print_gen_comment(struct html *, struct roff_node *);
 void		  print_gen_decls(struct html *);
 void		  print_gen_head(struct html *);
-void		  print_metaf(struct html *, enum mandoc_esc);
 struct tag	 *print_otag(struct html *, enum htmltag, const char *, ...);
 void		  print_tagq(struct html *, const struct tag *);
 void		  print_stagq(struct html *, const struct tag *);
@@ -141,3 +131,4 @@ void		  print_endline(struct html *);
 void		  html_close_paragraph(struct html *);
 enum roff_tok	  html_fillmode(struct html *, enum roff_tok);
 char		 *html_make_id(const struct roff_node *, int);
+int		  html_setfont(struct html *, enum mandoc_esc);
diff --git a/lib.in b/lib.in
index b8dd87eb99f8..a01f79e1ac48 100644
--- a/lib.in
+++ b/lib.in
@@ -1,4 +1,4 @@
-/*	$Id: lib.in,v 1.21 2019/03/04 17:35:21 schwarze Exp $ */
+/*	$Id: lib.in,v 1.22 2019/07/01 22:56:24 schwarze Exp $ */
 /*
  * Copyright (c) 2009 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2009, 2012 Joerg Sonnenberger <joerg@netbsd.org>
@@ -43,7 +43,7 @@ LINE("libcipher",	"FreeSec Crypt Library (libcipher, \\-lcipher)")
 LINE("libcompat",	"Compatibility Library (libcompat, \\-lcompat)")
 LINE("libcrypt",	"Crypt Library (libcrypt, \\-lcrypt)")
 LINE("libcurses",	"Curses Library (libcurses, \\-lcurses)")
-LINE("libcuse", 	"Userland Character Device Library (libcuse, \\-lcuse)")
+LINE("libcuse",		"Userland Character Device Library (libcuse, \\-lcuse)")
 LINE("libdevattr",	"Device attribute and event library (libdevattr, \\-ldevattr)")
 LINE("libdevctl",	"Device Control Library (libdevctl, \\-ldevctl)")
 LINE("libdevinfo",	"Device and Resource Information Utility Library (libdevinfo, \\-ldevinfo)")
diff --git a/libroff.h b/libroff.h
deleted file mode 100644
index b6a026d820b3..000000000000
--- a/libroff.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*	$Id: libroff.h,v 1.42 2017/07/08 17:52:49 schwarze Exp $ */
-/*
- * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2014, 2015, 2017 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.
- */
-
-enum	tbl_part {
-	TBL_PART_OPTS, /* in options (first line) */
-	TBL_PART_LAYOUT, /* describing layout */
-	TBL_PART_DATA, /* creating data rows */
-	TBL_PART_CDATA /* continue previous row */
-};
-
-struct	tbl_node {
-	struct mparse	 *parse; /* parse point */
-	int		  pos; /* invocation column */
-	int		  line; /* invocation line */
-	enum tbl_part	  part;
-	struct tbl_opts	  opts;
-	struct tbl_row	 *first_row;
-	struct tbl_row	 *last_row;
-	struct tbl_span	 *first_span;
-	struct tbl_span	 *current_span;
-	struct tbl_span	 *last_span;
-	struct tbl_node	 *next;
-};
-
-struct	eqn_node {
-	struct mparse	 *parse;  /* main parser, for error reporting */
-	struct roff_node *node;   /* syntax tree of this equation */
-	struct eqn_def	 *defs;   /* array of definitions */
-	char		 *data;   /* source code of this equation */
-	char		 *start;  /* first byte of the current token */
-	char		 *end;	  /* first byte of the next token */
-	size_t		  defsz;  /* number of definitions */
-	size_t		  sz;     /* length of the source code */
-	size_t		  toksz;  /* length of the current token */
-	int		  gsize;  /* default point size */
-	int		  delim;  /* in-line delimiters enabled */
-	char		  odelim; /* in-line opening delimiter */
-	char		  cdelim; /* in-line closing delimiter */
-};
-
-struct	eqn_def {
-	char		 *key;
-	size_t		  keysz;
-	char		 *val;
-	size_t		  valsz;
-};
-
-
-struct tbl_node	*tbl_alloc(int, int, struct mparse *);
-void		 tbl_restart(int, int, struct tbl_node *);
-void		 tbl_free(struct tbl_node *);
-void		 tbl_reset(struct tbl_node *);
-void		 tbl_read(struct tbl_node *, int, const char *, int);
-void		 tbl_option(struct tbl_node *, int, const char *, int *);
-void		 tbl_layout(struct tbl_node *, int, const char *, int);
-void		 tbl_data(struct tbl_node *, int, const char *, int);
-void		 tbl_cdata(struct tbl_node *, int, const char *, int);
-const struct tbl_span	*tbl_span(struct tbl_node *);
-int		 tbl_end(struct tbl_node *);
-struct eqn_node	*eqn_alloc(struct mparse *);
-void		 eqn_box_free(struct eqn_box *);
-void		 eqn_free(struct eqn_node *);
-void		 eqn_parse(struct eqn_node *);
-void		 eqn_read(struct eqn_node *, const char *);
-void		 eqn_reset(struct eqn_node *);
diff --git a/main.c b/main.c
index b91c15860ab1..b11f7b51c164 100644
--- a/main.c
+++ b/main.c
@@ -1,4 +1,4 @@
-/*	$Id: main.c,v 1.322 2019/03/06 10:18:58 schwarze Exp $ */
+/*	$Id: main.c,v 1.332 2019/07/19 20:27:25 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2012, 2014-2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -21,6 +21,7 @@
 #include <sys/types.h>
 #include <sys/ioctl.h>
 #include <sys/param.h>	/* MACHINE */
+#include <sys/stat.h>
 #include <sys/wait.h>
 
 #include <assert.h>
@@ -97,13 +98,10 @@ static	int		  fs_lookup(const struct manpaths *,
 static	int		  fs_search(const struct mansearch *,
 				const struct manpaths *, int, char**,
 				struct manpage **, size_t *);
-static	int		  koptions(int *, char *);
-static	void		  moptions(int *, char *);
 static	void		  outdata_alloc(struct curparse *);
 static	void		  parse(struct curparse *, int, const char *);
-static	void		  passthrough(const char *, int, int);
+static	void		  passthrough(int, int);
 static	pid_t		  spawn_pager(struct tag_files *);
-static	int		  toptions(struct curparse *, char *);
 static	void		  usage(enum argmode) __attribute__((__noreturn__));
 static	int		  woptions(struct curparse *, char *);
 
@@ -125,7 +123,7 @@ main(int argc, char *argv[])
 	char		*conf_file, *defpaths, *auxpaths;
 	char		*oarg, *tagarg;
 	unsigned char	*uc;
-	size_t		 i, sz;
+	size_t		 i, sz, ssz;
 	int		 prio, best_prio;
 	enum outmode	 outmode;
 	int		 fd, startdir;
@@ -154,10 +152,11 @@ main(int argc, char *argv[])
 		return mandocdb(argc, argv);
 
 #if HAVE_PLEDGE
-	if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
-		err((int)MANDOCLEVEL_SYSERR, "pledge");
+	if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
+		mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
+		return mandoc_msg_getrc();
+	}
 #endif
-
 #if HAVE_SANDBOX_INIT
 	if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
 		errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
@@ -221,19 +220,29 @@ main(int argc, char *argv[])
 			outmode = OUTMODE_ALL;
 			break;
 		case 'I':
-			if (strncmp(optarg, "os=", 3)) {
-				warnx("-I %s: Bad argument", optarg);
-				return (int)MANDOCLEVEL_BADARG;
+			if (strncmp(optarg, "os=", 3) != 0) {
+				mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
+				    "-I %s", optarg);
+				return mandoc_msg_getrc();
 			}
 			if (curp.os_s != NULL) {
-				warnx("-I %s: Duplicate argument", optarg);
-				return (int)MANDOCLEVEL_BADARG;
+				mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0,
+				    "-I %s", optarg);
+				return mandoc_msg_getrc();
 			}
 			curp.os_s = mandoc_strdup(optarg + 3);
 			break;
 		case 'K':
-			if ( ! koptions(&options, optarg))
-				return (int)MANDOCLEVEL_BADARG;
+			options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
+			if (strcmp(optarg, "utf-8") == 0)
+				options |=  MPARSE_UTF8;
+			else if (strcmp(optarg, "iso-8859-1") == 0)
+				options |=  MPARSE_LATIN1;
+			else if (strcmp(optarg, "us-ascii") != 0) {
+				mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
+				    "-K %s", optarg);
+				return mandoc_msg_getrc();
+			}
 			break;
 		case 'k':
 			search.argmode = ARG_EXPR;
@@ -258,12 +267,37 @@ main(int argc, char *argv[])
 			search.sec = optarg;
 			break;
 		case 'T':
-			if ( ! toptions(&curp, optarg))
-				return (int)MANDOCLEVEL_BADARG;
+			if (strcmp(optarg, "ascii") == 0)
+				curp.outtype = OUTT_ASCII;
+			else if (strcmp(optarg, "lint") == 0) {
+				curp.outtype = OUTT_LINT;
+				mandoc_msg_setoutfile(stdout);
+				mandoc_msg_setmin(MANDOCERR_BASE);
+			} else if (strcmp(optarg, "tree") == 0)
+				curp.outtype = OUTT_TREE;
+			else if (strcmp(optarg, "man") == 0)
+				curp.outtype = OUTT_MAN;
+			else if (strcmp(optarg, "html") == 0)
+				curp.outtype = OUTT_HTML;
+			else if (strcmp(optarg, "markdown") == 0)
+				curp.outtype = OUTT_MARKDOWN;
+			else if (strcmp(optarg, "utf8") == 0)
+				curp.outtype = OUTT_UTF8;
+			else if (strcmp(optarg, "locale") == 0)
+				curp.outtype = OUTT_LOCALE;
+			else if (strcmp(optarg, "ps") == 0)
+				curp.outtype = OUTT_PS;
+			else if (strcmp(optarg, "pdf") == 0)
+				curp.outtype = OUTT_PDF;
+			else {
+				mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
+				    "-T %s", optarg);
+				return mandoc_msg_getrc();
+			}
 			break;
 		case 'W':
-			if ( ! woptions(&curp, optarg))
-				return (int)MANDOCLEVEL_BADARG;
+			if (woptions(&curp, optarg) == -1)
+				return mandoc_msg_getrc();
 			break;
 		case 'w':
 			outmode = OUTMODE_FLN;
@@ -299,12 +333,9 @@ main(int argc, char *argv[])
 			search.outkey = oarg;
 		else {
 			while (oarg != NULL) {
-				thisarg = oarg;
 				if (manconf_output(&conf.output,
-				    strsep(&oarg, ","), 0) == 0)
-					continue;
-				warnx("-O %s: Bad argument", thisarg);
-				return (int)MANDOCLEVEL_BADARG;
+				    strsep(&oarg, ","), 0) == -1)
+					return mandoc_msg_getrc();
 			}
 		}
 	}
@@ -328,9 +359,13 @@ main(int argc, char *argv[])
 	}
 
 #if HAVE_PLEDGE
-	if (!use_pager)
-		if (pledge("stdio rpath", NULL) == -1)
-			err((int)MANDOCLEVEL_SYSERR, "pledge");
+	if (use_pager == 0) {
+		if (pledge("stdio rpath", NULL) == -1) {
+			mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
+			    "%s", strerror(errno));
+			return mandoc_msg_getrc();
+		}
+	}
 #endif
 
 	/* Parse arguments. */
@@ -355,7 +390,7 @@ main(int argc, char *argv[])
 		} else if (argc > 1 &&
 		    ((uc = (unsigned char *)argv[0]) != NULL) &&
 		    ((isdigit(uc[0]) && (uc[1] == '\0' ||
-		      (isalpha(uc[1]) && uc[2] == '\0'))) ||
+		      isalpha(uc[1]))) ||
 		     (uc[0] == 'n' && uc[1] == '\0'))) {
 			search.sec = (char *)uc;
 			argv++;
@@ -395,7 +430,7 @@ main(int argc, char *argv[])
 			usage(search.argmode);
 
 		if (sz == 0 && search.argmode == ARG_NAME)
-			fs_search(&search, &conf.manpath,
+			(void)fs_search(&search, &conf.manpath,
 			    argc, argv, &res, &sz);
 
 		if (search.argmode == ARG_NAME) {
@@ -403,7 +438,10 @@ main(int argc, char *argv[])
 				if (strchr(argv[c], '/') == NULL)
 					continue;
 				if (access(argv[c], R_OK) == -1) {
-					warn("%s", argv[c]);
+					mandoc_msg_setinfilename(argv[c]);
+					mandoc_msg(MANDOCERR_BADARG_BAD,
+					    0, 0, "%s", strerror(errno));
+					mandoc_msg_setinfilename(NULL);
 					continue;
 				}
 				res = mandoc_reallocarray(res,
@@ -411,6 +449,7 @@ main(int argc, char *argv[])
 				res[sz].file = mandoc_strdup(argv[c]);
 				res[sz].names = NULL;
 				res[sz].output = NULL;
+				res[sz].bits = 0;
 				res[sz].ipath = SIZE_MAX;
 				res[sz].sec = 10;
 				res[sz].form = FORM_SRC;
@@ -433,7 +472,7 @@ main(int argc, char *argv[])
 
 		if (outmode == OUTMODE_ONE) {
 			argc = 1;
-			best_prio = 20;
+			best_prio = 40;
 		} else if (outmode == OUTMODE_ALL)
 			argc = (int)sz;
 
@@ -452,10 +491,21 @@ main(int argc, char *argv[])
 				sec = res[i].file;
 				sec += strcspn(sec, "123456789");
 				if (sec[0] == '\0')
-					continue;
+					continue; /* No section at all. */
 				prio = sec_prios[sec[0] - '1'];
-				if (sec[1] != '/')
-					prio += 10;
+				if (search.sec != NULL) {
+					ssz = strlen(search.sec);
+					if (strncmp(sec, search.sec, ssz) == 0)
+						sec += ssz;
+				} else
+					sec++; /* Prefer without suffix. */
+				if (*sec != '/')
+					prio += 10; /* Wrong dir name. */
+				if (search.sec != NULL &&
+				    (strlen(sec) <= ssz  + 3 ||
+				     strcmp(sec + strlen(sec) - ssz,
+				      search.sec) != 0))
+					prio += 20; /* Wrong file ext. */
 				if (prio >= best_prio)
 					continue;
 				best_prio = prio;
@@ -477,16 +527,26 @@ main(int argc, char *argv[])
 
 #if HAVE_PLEDGE
 	if (use_pager) {
-		if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
-			err((int)MANDOCLEVEL_SYSERR, "pledge");
+		if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
+			mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
+			    "%s", strerror(errno));
+			return mandoc_msg_getrc();
+		}
 	} else {
-		if (pledge("stdio rpath", NULL) == -1)
-			err((int)MANDOCLEVEL_SYSERR, "pledge");
+		if (pledge("stdio rpath", NULL) == -1) {
+			mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
+			    "%s", strerror(errno));
+			return mandoc_msg_getrc();
+		}
 	}
 #endif
 
-	if (search.argmode == ARG_FILE)
-		moptions(&options, auxpaths);
+	if (search.argmode == ARG_FILE && auxpaths != NULL) {
+		if (strcmp(auxpaths, "doc") == 0)
+			options |= MPARSE_MDOC;
+		else if (strcmp(auxpaths, "an") == 0)
+			options |= MPARSE_MAN;
+	}
 
 	mchars_alloc();
 	curp.mp = mparse_alloc(options, curp.os_e, curp.os_s);
@@ -494,7 +554,8 @@ main(int argc, char *argv[])
 	if (argc < 1) {
 		if (use_pager) {
 			tag_files = tag_init();
-			tag_files->tagname = conf.output.tag;
+			if (tag_files != NULL)
+				tag_files->tagname = conf.output.tag;
 		}
 		thisarg = "<stdin>";
 		mandoc_msg_setinfilename(thisarg);
@@ -527,30 +588,31 @@ main(int argc, char *argv[])
 		} else
 			thisarg = *argv;
 
+		mandoc_msg_setinfilename(thisarg);
 		fd = mparse_open(curp.mp, thisarg);
 		if (fd != -1) {
 			if (use_pager) {
 				use_pager = 0;
 				tag_files = tag_init();
-				tag_files->tagname = conf.output.tag;
+				if (tag_files != NULL)
+					tag_files->tagname = conf.output.tag;
 			}
 
-			mandoc_msg_setinfilename(thisarg);
 			if (resp == NULL || resp->form == FORM_SRC)
 				parse(&curp, fd, thisarg);
 			else
-				passthrough(resp->file, fd,
-				    conf.output.synopsisonly);
-			mandoc_msg_setinfilename(NULL);
+				passthrough(fd, conf.output.synopsisonly);
 
 			if (ferror(stdout)) {
 				if (tag_files != NULL) {
-					warn("%s", tag_files->ofn);
+					mandoc_msg(MANDOCERR_WRITE, 0, 0,
+					    "%s: %s", tag_files->ofn,
+					    strerror(errno));
 					tag_unlink();
 					tag_files = NULL;
 				} else
-					warn("stdout");
-				mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
+					mandoc_msg(MANDOCERR_WRITE, 0, 0,
+					    "%s", strerror(errno));
 				break;
 			}
 
@@ -560,8 +622,10 @@ main(int argc, char *argv[])
 				terminal_sepline(curp.outdata);
 			}
 		} else
-			mandoc_msg(MANDOCERR_FILE, 0, 0,
-			    "%s: %s", thisarg, strerror(errno));
+			mandoc_msg(resp == NULL ? MANDOCERR_BADARG_BAD :
+			    MANDOCERR_OPEN, 0, 0, "%s", strerror(errno));
+
+		mandoc_msg_setinfilename(NULL);
 
 		if (curp.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
 			break;
@@ -653,8 +717,8 @@ out:
 				continue;
 
 			if (pid == -1) {
-				warn("wait");
-				mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
+				mandoc_msg(MANDOCERR_WAIT, 0, 0,
+				    "%s", strerror(errno));
 				break;
 			}
 			if (!WIFSTOPPED(status))
@@ -663,14 +727,16 @@ out:
 			signum = WSTOPSIG(status);
 		}
 		tag_unlink();
-	}
+	} else if (curp.outtype != OUTT_LINT &&
+	    (search.argmode == ARG_FILE || sz > 0))
+		mandoc_msg_summary();
+
 	return (int)mandoc_msg_getrc();
 }
 
 static void
 usage(enum argmode argmode)
 {
-
 	switch (argmode) {
 	case ARG_FILE:
 		fputs("usage: mandoc [-ac] [-I os=name] "
@@ -701,6 +767,7 @@ fs_lookup(const struct manpaths *paths, size_t ipath,
 	const char *sec, const char *arch, const char *name,
 	struct manpage **res, size_t *ressz)
 {
+	struct stat	 sb;
 	glob_t		 globinfo;
 	struct manpage	*page;
 	char		*file;
@@ -710,13 +777,13 @@ fs_lookup(const struct manpaths *paths, size_t ipath,
 	form = FORM_SRC;
 	mandoc_asprintf(&file, "%s/man%s/%s.%s",
 	    paths->paths[ipath], sec, name, sec);
-	if (access(file, R_OK) != -1)
+	if (stat(file, &sb) != -1)
 		goto found;
 	free(file);
 
 	mandoc_asprintf(&file, "%s/cat%s/%s.0",
 	    paths->paths[ipath], sec, name);
-	if (access(file, R_OK) != -1) {
+	if (stat(file, &sb) != -1) {
 		form = FORM_CAT;
 		goto found;
 	}
@@ -725,7 +792,7 @@ fs_lookup(const struct manpaths *paths, size_t ipath,
 	if (arch != NULL) {
 		mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
 		    paths->paths[ipath], sec, arch, name, sec);
-		if (access(file, R_OK) != -1)
+		if (stat(file, &sb) != -1)
 			goto found;
 		free(file);
 	}
@@ -734,37 +801,42 @@ fs_lookup(const struct manpaths *paths, size_t ipath,
 	    paths->paths[ipath], sec, name);
 	globres = glob(file, 0, NULL, &globinfo);
 	if (globres != 0 && globres != GLOB_NOMATCH)
-		warn("%s: glob", file);
+		mandoc_msg(MANDOCERR_GLOB, 0, 0,
+		    "%s: %s", file, strerror(errno));
 	free(file);
 	if (globres == 0)
 		file = mandoc_strdup(*globinfo.gl_pathv);
 	globfree(&globinfo);
-	if (globres == 0)
-		goto found;
+	if (globres == 0) {
+		if (stat(file, &sb) != -1)
+			goto found;
+		free(file);
+	}
 	if (res != NULL || ipath + 1 != paths->sz)
-		return 0;
+		return -1;
 
 	mandoc_asprintf(&file, "%s.%s", name, sec);
-	globres = access(file, R_OK);
+	globres = stat(file, &sb);
 	free(file);
-	return globres != -1;
+	return globres;
 
 found:
 	warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
 	    name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
 	if (res == NULL) {
 		free(file);
-		return 1;
+		return 0;
 	}
-	*res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage));
+	*res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res));
 	page = *res + (*ressz - 1);
 	page->file = file;
 	page->names = NULL;
 	page->output = NULL;
+	page->bits = NAME_FILE & NAME_MASK;
 	page->ipath = ipath;
 	page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
 	page->form = form;
-	return 1;
+	return 0;
 }
 
 static int
@@ -786,14 +858,14 @@ fs_search(const struct mansearch *cfg, const struct manpaths *paths,
 		for (ipath = 0; ipath < paths->sz; ipath++) {
 			if (cfg->sec != NULL) {
 				if (fs_lookup(paths, ipath, cfg->sec,
-				    cfg->arch, *argv, res, ressz) &&
+				    cfg->arch, *argv, res, ressz) != -1 &&
 				    cfg->firstmatch)
-					return 1;
+					return 0;
 			} else for (isec = 0; isec < nsec; isec++)
 				if (fs_lookup(paths, ipath, sections[isec],
-				    cfg->arch, *argv, res, ressz) &&
+				    cfg->arch, *argv, res, ressz) != -1 &&
 				    cfg->firstmatch)
-					return 1;
+					return 0;
 		}
 		if (res != NULL && *ressz == lastsz &&
 		    strchr(*argv, '/') == NULL) {
@@ -812,7 +884,7 @@ fs_search(const struct mansearch *cfg, const struct manpaths *paths,
 		argv++;
 		argc--;
 	}
-	return 0;
+	return -1;
 }
 
 static void
@@ -919,7 +991,7 @@ check_xr(void)
 		search.firstmatch = 1;
 		if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
 			continue;
-		if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz))
+		if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz) != -1)
 			continue;
 		if (xr->count == 1)
 			mandoc_msg(MANDOCERR_XR_BAD, xr->line,
@@ -959,34 +1031,34 @@ outdata_alloc(struct curparse *curp)
 }
 
 static void
-passthrough(const char *file, int fd, int synopsis_only)
+passthrough(int fd, int synopsis_only)
 {
 	const char	 synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
 	const char	 synr[] = "SYNOPSIS";
 
 	FILE		*stream;
-	const char	*syscall;
 	char		*line, *cp;
 	size_t		 linesz;
 	ssize_t		 len, written;
-	int		 print;
+	int		 lno, print;
 
+	stream = NULL;
 	line = NULL;
 	linesz = 0;
 
 	if (fflush(stdout) == EOF) {
-		syscall = "fflush";
-		goto fail;
+		mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
+		goto done;
 	}
-
 	if ((stream = fdopen(fd, "r")) == NULL) {
 		close(fd);
-		syscall = "fdopen";
-		goto fail;
+		mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
+		goto done;
 	}
 
-	print = 0;
+	lno = print = 0;
 	while ((len = getline(&line, &linesz, stream)) != -1) {
+		lno++;
 		cp = line;
 		if (synopsis_only) {
 			if (print) {
@@ -1004,94 +1076,20 @@ passthrough(const char *file, int fd, int synopsis_only)
 			}
 		}
 		for (; len > 0; len -= written) {
-			if ((written = write(STDOUT_FILENO, cp, len)) != -1)
-				continue;
-			fclose(stream);
-			syscall = "write";
-			goto fail;
+			if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
+				mandoc_msg(MANDOCERR_WRITE, 0, 0,
+				    "%s", strerror(errno));
+				goto done;
+			}
 		}
 	}
-
-	if (ferror(stream)) {
-		fclose(stream);
-		syscall = "getline";
-		goto fail;
-	}
+	if (ferror(stream))
+		mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));
 
 done:
 	free(line);
-	fclose(stream);
-	return;
-
-fail:
-	free(line);
-	warn("%s: SYSERR: %s", file, syscall);
-	mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
-}
-
-static int
-koptions(int *options, char *arg)
-{
-
-	if ( ! strcmp(arg, "utf-8")) {
-		*options |=  MPARSE_UTF8;
-		*options &= ~MPARSE_LATIN1;
-	} else if ( ! strcmp(arg, "iso-8859-1")) {
-		*options |=  MPARSE_LATIN1;
-		*options &= ~MPARSE_UTF8;
-	} else if ( ! strcmp(arg, "us-ascii")) {
-		*options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
-	} else {
-		warnx("-K %s: Bad argument", arg);
-		return 0;
-	}
-	return 1;
-}
-
-static void
-moptions(int *options, char *arg)
-{
-
-	if (arg == NULL)
-		return;
-	if (strcmp(arg, "doc") == 0)
-		*options |= MPARSE_MDOC;
-	else if (strcmp(arg, "an") == 0)
-		*options |= MPARSE_MAN;
-}
-
-static int
-toptions(struct curparse *curp, char *arg)
-{
-
-	if (0 == strcmp(arg, "ascii"))
-		curp->outtype = OUTT_ASCII;
-	else if (0 == strcmp(arg, "lint")) {
-		curp->outtype = OUTT_LINT;
-		mandoc_msg_setoutfile(stdout);
-		mandoc_msg_setmin(MANDOCERR_BASE);
-	} else if (0 == strcmp(arg, "tree"))
-		curp->outtype = OUTT_TREE;
-	else if (0 == strcmp(arg, "man"))
-		curp->outtype = OUTT_MAN;
-	else if (0 == strcmp(arg, "html"))
-		curp->outtype = OUTT_HTML;
-	else if (0 == strcmp(arg, "markdown"))
-		curp->outtype = OUTT_MARKDOWN;
-	else if (0 == strcmp(arg, "utf8"))
-		curp->outtype = OUTT_UTF8;
-	else if (0 == strcmp(arg, "locale"))
-		curp->outtype = OUTT_LOCALE;
-	else if (0 == strcmp(arg, "ps"))
-		curp->outtype = OUTT_PS;
-	else if (0 == strcmp(arg, "pdf"))
-		curp->outtype = OUTT_PDF;
-	else {
-		warnx("-T %s: Bad argument", arg);
-		return 0;
-	}
-
-	return 1;
+	if (stream != NULL)
+		fclose(stream);
 }
 
 static int
@@ -1135,7 +1133,7 @@ woptions(struct curparse *curp, char *arg)
 			mandoc_msg_setmin(MANDOCERR_UNSUPP);
 			break;
 		case 7:
-			mandoc_msg_setmin(MANDOCERR_MAX);
+			mandoc_msg_setmin(MANDOCERR_BADARG);
 			break;
 		case 8:
 			mandoc_msg_setmin(MANDOCERR_BASE);
@@ -1146,11 +1144,11 @@ woptions(struct curparse *curp, char *arg)
 			curp->os_e = MANDOC_OS_NETBSD;
 			break;
 		default:
-			warnx("-W %s: Bad argument", o);
-			return 0;
+			mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
+			return -1;
 		}
 	}
-	return 1;
+	return 0;
 }
 
 static pid_t
@@ -1196,7 +1194,7 @@ spawn_pager(struct tag_files *tag_files)
 
 	use_ofn = 1;
 #if HAVE_LESS_T
-	if ((cmdlen = strlen(argv[0])) >= 4) {
+	if (*tag_files->tfn != '\0' && (cmdlen = strlen(argv[0])) >= 4) {
 		cp = argv[0] + cmdlen - 4;
 		if (strcmp(cp, "less") == 0) {
 			argv[argc++] = mandoc_strdup("-T");
@@ -1215,15 +1213,19 @@ spawn_pager(struct tag_files *tag_files)
 
 	switch (pager_pid = fork()) {
 	case -1:
-		err((int)MANDOCLEVEL_SYSERR, "fork");
+		mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
+		exit(mandoc_msg_getrc());
 	case 0:
 		break;
 	default:
 		(void)setpgid(pager_pid, 0);
 		(void)tcsetpgrp(tag_files->ofd, pager_pid);
 #if HAVE_PLEDGE
-		if (pledge("stdio rpath tmppath tty proc", NULL) == -1)
-			err((int)MANDOCLEVEL_SYSERR, "pledge");
+		if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
+			mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
+			    "%s", strerror(errno));
+			exit(mandoc_msg_getrc());
+		}
 #endif
 		tag_files->pager_pid = pager_pid;
 		return pager_pid;
@@ -1231,8 +1233,10 @@ spawn_pager(struct tag_files *tag_files)
 
 	/* The child process becomes the pager. */
 
-	if (dup2(tag_files->ofd, STDOUT_FILENO) == -1)
-		err((int)MANDOCLEVEL_SYSERR, "pager stdout");
+	if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) {
+		mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno));
+		_exit(mandoc_msg_getrc());
+	}
 	close(tag_files->ofd);
 	assert(tag_files->tfd == -1);
 
@@ -1242,5 +1246,6 @@ spawn_pager(struct tag_files *tag_files)
 		nanosleep(&timeout, NULL);
 
 	execvp(argv[0], argv);
-	err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]);
+	mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
+	_exit(mandoc_msg_getrc());
 }
diff --git a/man.7 b/man.7
index 7706b5ca23df..6b4bece71433 100644
--- a/man.7
+++ b/man.7
@@ -1,4 +1,4 @@
-.\"	$Id: man.7,v 1.143 2019/03/02 22:04:40 schwarze Exp $
+.\"	$Id: man.7,v 1.144 2019/07/09 03:46:59 schwarze Exp $
 .\"
 .\" Copyright (c) 2009, 2010, 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
 .\" Copyright (c) 2011-2015,2017,2018,2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -17,7 +17,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: March 2 2019 $
+.Dd $Mdocdate: July 9 2019 $
 .Dt MAN 7
 .Os
 .Sh NAME
@@ -160,7 +160,9 @@ This has no effect unless the tabulator positions were changed with the
 .Ic ta
 request.
 .It Ic EE
-This is a non-standard GNU extension.
+This is a non-standard Version 9
+.At
+extension later adopted by GNU.
 In
 .Xr mandoc 1 ,
 it does the same as the
@@ -168,7 +170,9 @@ it does the same as the
 .Ic fi
 request (switch to fill mode).
 .It Ic EX
-This is a non-standard GNU extension.
+This is a non-standard Version 9
+.At
+extension later adopted by GNU.
 In
 .Xr mandoc 1 ,
 it does the same as the
@@ -496,8 +500,8 @@ The syntax is as follows:
 .It Ic BI  Ta    n         Ta    current   Ta    \&
 .It Ic BR  Ta    n         Ta    current   Ta    \&
 .It Ic DT  Ta    0         Ta    current   Ta    \&
-.It Ic EE  Ta    0         Ta    current   Ta    GNU
-.It Ic EX  Ta    0         Ta    current   Ta    GNU
+.It Ic EE  Ta    0         Ta    current   Ta    Version 9 At
+.It Ic EX  Ta    0         Ta    current   Ta    Version 9 At
 .It Ic I   Ta    n         Ta    next-line Ta    \&
 .It Ic IB  Ta    n         Ta    current   Ta    \&
 .It Ic IR  Ta    n         Ta    current   Ta    \&
diff --git a/man_html.c b/man_html.c
index 994a208aa0ee..c0a429c5d6c9 100644
--- a/man_html.c
+++ b/man_html.c
@@ -1,4 +1,4 @@
-/*	$Id: man_html.c,v 1.173 2019/03/02 16:30:53 schwarze Exp $ */
+/*	$Id: man_html.c,v 1.174 2019/04/30 15:53:00 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2013-2015, 2017-2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -203,9 +203,9 @@ print_man_node(MAN_ARGS)
 		 * Close out scope of font prior to opening a macro
 		 * scope.
 		 */
-		if (HTMLFONT_NONE != h->metac) {
+		if (h->metac != ESCAPE_FONTROMAN) {
 			h->metal = h->metac;
-			h->metac = HTMLFONT_NONE;
+			h->metac = ESCAPE_FONTROMAN;
 		}
 
 		/*
diff --git a/man_term.c b/man_term.c
index d867762dcace..d9ee14ad22ba 100644
--- a/man_term.c
+++ b/man_term.c
@@ -1,4 +1,4 @@
-/*	$Id: man_term.c,v 1.228 2019/01/05 21:18:26 schwarze Exp $ */
+/*	$Id: man_term.c,v 1.232 2019/07/23 17:53:35 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2015, 2017-2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -27,10 +27,12 @@
 #include <string.h>
 
 #include "mandoc_aux.h"
+#include "mandoc.h"
 #include "roff.h"
 #include "man.h"
 #include "out.h"
 #include "term.h"
+#include "tag.h"
 #include "main.h"
 
 #define	MAXMARGINS	  64 /* maximum number of indented scopes */
@@ -92,6 +94,8 @@ static	void		  post_SY(DECL_ARGS);
 static	void		  post_TP(DECL_ARGS);
 static	void		  post_UR(DECL_ARGS);
 
+static	void		  tag_man(struct termp *, struct roff_node *);
+
 static const struct man_term_act man_term_acts[MAN_MAX - MAN_TH] = {
 	{ NULL, NULL, 0 }, /* TH */
 	{ pre_SH, post_SH, 0 }, /* SH */
@@ -146,7 +150,7 @@ terminal_man(void *arg, const struct roff_meta *man)
 {
 	struct mtermp		 mt;
 	struct termp		*p;
-	struct roff_node	*n;
+	struct roff_node	*n, *nc, *nn;
 	size_t			 save_defindent;
 
 	p = (struct termp *)arg;
@@ -165,18 +169,23 @@ terminal_man(void *arg, const struct roff_meta *man)
 
 	n = man->first->child;
 	if (p->synopsisonly) {
-		while (n != NULL) {
-			if (n->tok == MAN_SH &&
-			    n->child->child->type == ROFFT_TEXT &&
-			    !strcmp(n->child->child->string, "SYNOPSIS")) {
-				if (n->child->next->child != NULL)
-					print_man_nodelist(p, &mt,
-					    n->child->next->child, man);
-				term_newln(p);
+		for (nn = NULL; n != NULL; n = n->next) {
+			if (n->tok != MAN_SH)
+				continue;
+			nc = n->child->child;
+			if (nc->type != ROFFT_TEXT)
+				continue;
+			if (strcmp(nc->string, "SYNOPSIS") == 0)
 				break;
-			}
-			n = n->next;
+			if (nn == NULL && strcmp(nc->string, "NAME") == 0)
+				nn = n;
 		}
+		if (n == NULL)
+			n = nn;
+		p->flags |= TERMP_NOSPACE;
+		if (n != NULL && (n = n->child->next->child) != NULL)
+			print_man_nodelist(p, &mt, n, man);
+		term_newln(p);
 	} else {
 		term_begin(p, print_man_head, print_man_foot, man);
 		p->flags |= TERMP_NOSPACE;
@@ -310,7 +319,7 @@ pre_alternate(DECL_ARGS)
 		assert(nn->type == ROFFT_TEXT);
 		term_word(p, nn->string);
 		if (nn->flags & NODE_EOS)
-                	p->flags |= TERMP_SENTENCE;
+			p->flags |= TERMP_SENTENCE;
 		if (nn->next != NULL)
 			p->flags |= TERMP_NOSPACE;
 	}
@@ -529,8 +538,10 @@ pre_IP(DECL_ARGS)
 	case ROFFT_HEAD:
 		p->tcol->offset = mt->offset;
 		p->tcol->rmargin = mt->offset + len;
-		if (n->child != NULL)
+		if (n->child != NULL) {
 			print_man_node(p, mt, n->child, meta);
+			tag_man(p, n->child);
+		}
 		return 0;
 	case ROFFT_BODY:
 		p->tcol->offset = mt->offset + len;
@@ -610,6 +621,18 @@ pre_TP(DECL_ARGS)
 		while (nn != NULL && (nn->flags & NODE_LINE) == 0)
 			nn = nn->next;
 
+		if (nn == NULL)
+			return 0;
+
+		if (nn->type == ROFFT_TEXT)
+			tag_man(p, nn);
+		else if (nn->child != NULL &&
+		    nn->child->type == ROFFT_TEXT &&
+		    (nn->tok == MAN_B || nn->tok == MAN_BI ||
+		     nn->tok == MAN_BR || nn->tok == MAN_I ||
+		     nn->tok == MAN_IB || nn->tok == MAN_IR))
+			tag_man(p, nn->child);
+
 		while (nn != NULL) {
 			print_man_node(p, mt, nn, meta);
 			nn = nn->next;
@@ -1143,3 +1166,60 @@ print_man_head(struct termp *p, const struct roff_meta *meta)
 	}
 	free(title);
 }
+
+/*
+ * Skip leading whitespace, dashes, backslashes, and font escapes,
+ * then create a tag if the first following byte is a letter.
+ * Priority is high unless whitespace is present.
+ */
+static void
+tag_man(struct termp *p, struct roff_node *n)
+{
+	const char	*cp, *arg;
+	int		 prio, sz;
+
+	assert(n->type == ROFFT_TEXT);
+	cp = n->string;
+	prio = 1;
+	for (;;) {
+		switch (*cp) {
+		case ' ':
+		case '\t':
+			prio = INT_MAX;
+			/* FALLTHROUGH */
+		case '-':
+			cp++;
+			break;
+		case '\\':
+			cp++;
+			switch (mandoc_escape(&cp, &arg, &sz)) {
+			case ESCAPE_FONT:
+			case ESCAPE_FONTROMAN:
+			case ESCAPE_FONTITALIC:
+			case ESCAPE_FONTBOLD:
+			case ESCAPE_FONTPREV:
+			case ESCAPE_FONTBI:
+				break;
+			case ESCAPE_SPECIAL:
+				if (sz != 1)
+					return;
+				switch (*arg) {
+				case '&':
+				case '-':
+				case 'e':
+					break;
+				default:
+					return;
+				}
+				break;
+			default:
+				return;
+			}
+			break;
+		default:
+			if (isalpha((unsigned char)*cp))
+				tag_put(cp, prio, p->line);
+			return;
+		}
+	}
+}
diff --git a/man_validate.c b/man_validate.c
index 4bfaf764e6c8..0aa550bd08d9 100644
--- a/man_validate.c
+++ b/man_validate.c
@@ -1,4 +1,4 @@
-/*	$Id: man_validate.c,v 1.146 2018/12/31 10:04:39 schwarze Exp $ */
+/*	$Id: man_validate.c,v 1.149 2019/06/27 15:07:30 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010, 2012-2018 Ingo Schwarze <schwarze@openbsd.org>
@@ -41,7 +41,7 @@
 
 typedef	void	(*v_check)(CHKARGS);
 
-static	void	  check_abort(CHKARGS);
+static	void	  check_abort(CHKARGS) __attribute__((__noreturn__));
 static	void	  check_par(CHKARGS);
 static	void	  check_part(CHKARGS);
 static	void	  check_root(CHKARGS);
@@ -185,8 +185,7 @@ check_root(CHKARGS)
 
 		man->meta.title = mandoc_strdup("");
 		man->meta.msec = mandoc_strdup("");
-		man->meta.date = man->quick ? mandoc_strdup("") :
-		    mandoc_normdate(man, NULL, n->line, n->pos);
+		man->meta.date = mandoc_normdate(man, NULL, n->line, n->pos);
 	}
 
 	if (man->meta.os_e &&
@@ -369,8 +368,8 @@ post_TH(CHKARGS)
 	/* ->TITLE<- MSEC DATE OS VOL */
 
 	n = n->child;
-	if (n && n->string) {
-		for (p = n->string; '\0' != *p; p++) {
+	if (n != NULL && n->string != NULL) {
+		for (p = n->string; *p != '\0'; p++) {
 			/* Only warn about this once... */
 			if (isalpha((unsigned char)*p) &&
 			    ! isupper((unsigned char)*p)) {
@@ -388,9 +387,9 @@ post_TH(CHKARGS)
 
 	/* TITLE ->MSEC<- DATE OS VOL */
 
-	if (n)
+	if (n != NULL)
 		n = n->next;
-	if (n && n->string)
+	if (n != NULL && n->string != NULL)
 		man->meta.msec = mandoc_strdup(n->string);
 	else {
 		man->meta.msec = mandoc_strdup("");
@@ -400,17 +399,16 @@ post_TH(CHKARGS)
 
 	/* TITLE MSEC ->DATE<- OS VOL */
 
-	if (n)
+	if (n != NULL)
 		n = n->next;
-	if (n && n->string && '\0' != n->string[0]) {
-		man->meta.date = man->quick ?
-		    mandoc_strdup(n->string) :
-		    mandoc_normdate(man, n->string, n->line, n->pos);
-	} else {
+	if (n != NULL && n->string != NULL && n->string[0] != '\0')
+		man->meta.date = mandoc_normdate(man,
+		    n->string, n->line, n->pos);
+	else {
 		man->meta.date = mandoc_strdup("");
 		mandoc_msg(MANDOCERR_DATE_MISSING,
-		    n ? n->line : nb->line,
-		    n ? n->pos : nb->pos, "TH");
+		    n == NULL ? nb->line : n->line,
+		    n == NULL ? nb->pos : n->pos, "TH");
 	}
 
 	/* TITLE MSEC DATE ->OS<- VOL */
diff --git a/mandoc.1 b/mandoc.1
index 79f6e8500d5c..298d5dc70610 100644
--- a/mandoc.1
+++ b/mandoc.1
@@ -1,7 +1,7 @@
-.\"	$Id: mandoc.1,v 1.237 2019/02/23 18:53:54 schwarze Exp $
+.\"	$Id: mandoc.1,v 1.240 2019/07/10 19:39:01 schwarze Exp $
 .\"
 .\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
-.\" Copyright (c) 2012, 2014-2018 Ingo Schwarze <schwarze@openbsd.org>
+.\" Copyright (c) 2012, 2014-2019 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
@@ -15,7 +15,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: February 23 2019 $
+.Dd $Mdocdate: July 10 2019 $
 .Dt MANDOC 1
 .Os
 .Sh NAME
@@ -222,7 +222,8 @@ reads from standard input.
 .Pp
 The options
 .Fl fhklw
-are also supported and are documented in man(1).
+are also supported and are documented in
+.Xr man 1 .
 In
 .Fl f
 and
@@ -697,7 +698,7 @@ No input files have been read.
 .It 6
 An operating system error occurred, for example exhaustion
 of memory, file descriptors, or process table entries.
-Such errors cause
+Such errors may cause
 .Nm
 to exit at once, possibly in the middle of parsing or formatting a file.
 .El
@@ -777,6 +778,13 @@ fields.
 .Pp
 Message levels have the following meanings:
 .Bl -tag -width "warning"
+.It Cm syserr
+An operating system error occurred.
+There isn't necessarily anything wrong with the input files.
+Output may all the same be missing or incomplete.
+.It Cm badarg
+Invalid command line arguments were specified.
+No input files have been read and no output is produced.
 .It Cm unsupp
 An input file uses unsupported low-level
 .Xr roff 7
@@ -825,8 +833,7 @@ Messages of the
 .Cm error ,
 and
 .Cm unsupp
-levels except those about non-existent or unreadable input files
-are hidden unless their level, or a lower level, is requested using a
+levels are hidden unless their level, or a lower level, is requested using a
 .Fl W
 option or
 .Fl T Cm lint
@@ -1699,9 +1706,12 @@ The meaning of blank input lines is only well-defined in non-fill mode:
 In fill mode, line breaks of text input lines are not supposed to be
 significant.
 However, for compatibility with groff, blank lines in fill mode
-are replaced with
+are formatted like
 .Ic \&sp
 requests.
+To request a paragraph break, use
+.Ic \&Pp
+instead of a blank line.
 .It Sy "tab in filled text"
 .Pq mdoc , man
 The meaning of tab characters is only well-defined in non-fill mode:
@@ -2238,6 +2248,43 @@ macro or of an undefined macro.
 The macro is ignored, and its arguments are handled
 as if they were a text line.
 .El
+.Ss Bad command line arguments
+.Bl -ohang
+.It Sy "bad command line argument"
+The argument following one of the
+.Fl IKMmOTW
+command line options is invalid, or a
+.Ar file
+given as a command line argument cannot be opened.
+.It Sy "duplicate command line argument"
+The
+.Fl I
+command line option was specified twice.
+.It Sy "option has a superfluous value"
+An argument to the
+.Fl O
+option has a value but does not accept one.
+.It Sy "missing option value"
+An argument to the
+.Fl O
+option has no argument but requires one.
+.It Sy "bad option value"
+An argument to the
+.Fl O
+.Cm indent
+or
+.Cm width
+option has an invalid value.
+.It Sy "duplicate option value"
+The same
+.Fl O
+option is specified more than once.
+.It Sy "no such tag"
+The
+.Fl O Cm tag
+option was specified but the tag was not found in any of the displayed
+manual pages.
+.El
 .Sh SEE ALSO
 .Xr apropos 1 ,
 .Xr man 1 ,
diff --git a/mandoc.c b/mandoc.c
index fb9395a585db..5a2be88e40df 100644
--- a/mandoc.c
+++ b/mandoc.c
@@ -1,4 +1,4 @@
-/*	$Id: mandoc.c,v 1.114 2018/12/30 00:49:55 schwarze Exp $ */
+/*	$Id: mandoc.c,v 1.116 2019/06/27 15:07:30 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2011-2015, 2017, 2018 Ingo Schwarze <schwarze@openbsd.org>
@@ -494,9 +494,10 @@ time2a(time_t t)
 	size_t		 ssz;
 	int		 isz;
 
+	buf = NULL;
 	tm = localtime(&t);
 	if (tm == NULL)
-		return NULL;
+		goto fail;
 
 	/*
 	 * Reserve space:
@@ -520,7 +521,8 @@ time2a(time_t t)
 	 * of looking at LC_TIME.
 	 */
 
-	if ((isz = snprintf(p, 4 + 1, "%d, ", tm->tm_mday)) == -1)
+	isz = snprintf(p, 4 + 1, "%d, ", tm->tm_mday);
+	if (isz < 0 || isz > 4)
 		goto fail;
 	p += isz;
 
@@ -530,7 +532,7 @@ time2a(time_t t)
 
 fail:
 	free(buf);
-	return NULL;
+	return mandoc_strdup("");
 }
 
 char *
@@ -539,12 +541,15 @@ mandoc_normdate(struct roff_man *man, char *in, int ln, int pos)
 	char		*cp;
 	time_t		 t;
 
+	if (man->quick)
+		return mandoc_strdup(in == NULL ? "" : in);
+
 	/* No date specified: use today's date. */
 
-	if (in == NULL || *in == '\0' || strcmp(in, "$" "Mdocdate$") == 0) {
+	if (in == NULL || *in == '\0')
 		mandoc_msg(MANDOCERR_DATE_MISSING, ln, pos, NULL);
+	if (in == NULL || *in == '\0' || strcmp(in, "$" "Mdocdate$") == 0)
 		return time2a(time(NULL));
-	}
 
 	/* Valid mdoc(7) date format. */
 
diff --git a/mandoc.css b/mandoc.css
index 085f5c08b26d..d75700a28ba7 100644
--- a/mandoc.css
+++ b/mandoc.css
@@ -1,4 +1,4 @@
-/* $Id: mandoc.css,v 1.45 2019/03/01 10:57:18 schwarze Exp $ */
+/* $Id: mandoc.css,v 1.46 2019/06/02 16:57:13 schwarze Exp $ */
 /*
  * Standard style sheet for mandoc(1) -Thtml and man.cgi(8).
  *
@@ -10,8 +10,13 @@
 
 /* Global defaults. */
 
-html {		max-width: 65em; }
-body {		font-family: Helvetica,Arial,sans-serif; }
+html {		max-width: 65em;
+		--bg: #FFFFFF;
+		--fg: #000000; }
+body {		background: var(--bg);
+		color: var(--fg);
+		font-family: Helvetica,Arial,sans-serif; }
+h1 {		font-size: 110%; }
 table {		margin-top: 0em;
 		margin-bottom: 0em;
 		border-collapse: collapse; }
@@ -69,8 +74,7 @@ td.foot-os {	text-align: right; }
 section.Sh { }
 h1.Sh {		margin-top: 1.2em;
 		margin-bottom: 0.6em;
-		margin-left: -3.2em;
-		font-size: 110%; }
+		margin-left: -3.2em; }
 section.Ss { }
 h2.Ss {		margin-top: 1.2em;
 		margin-bottom: 0.6em;
@@ -310,14 +314,14 @@ h1.Sh::before, h2.Ss::before, .St::before, .Sx::before, .Sy::before,
 		pointer-events: none;
 		position: absolute;
 		bottom: 100%;
-		box-shadow: 0 0 .35em #000;
+		box-shadow: 0 0 .35em var(--fg);
 		padding: .15em .25em;
 		white-space: nowrap;
 		font-family: Helvetica,Arial,sans-serif;
 		font-style: normal;
 		font-weight: bold;
-		color: black;
-		background: #fff; }
+		background: var(--bg);
+		color: var(--fg); }
 .An:hover::before, .Ar:hover::before, .Cd:hover::before, .Cm:hover::before,
 .Dv:hover::before, .Em:hover::before, .Er:hover::before, .Ev:hover::before,
 .Fa:hover::before, .Fd:hover::before, .Fl:hover::before, .Fn:hover::before,
@@ -345,3 +349,12 @@ h1.Sh, h2.Ss {	margin-left: 0em; }
 .HP {		margin-left: 2em;
 		text-indent: -2em; }
 }
+
+/* Overrides for a dark color scheme for accessibility. */
+
+@media (prefers-color-scheme: dark) {
+html {		--bg: #1E1F21;
+		--fg: #EEEFF1; }
+:link {		color: #BAD7FF; }
+:visited {	color: #F6BAFF; }
+}
diff --git a/mandoc.h b/mandoc.h
index a44b192e0f4f..4a7e7aa749ad 100644
--- a/mandoc.h
+++ b/mandoc.h
@@ -1,7 +1,7 @@
-/*	$Id: mandoc.h,v 1.262 2018/12/16 00:17:02 schwarze Exp $ */
+/*	$Id: mandoc.h,v 1.264 2019/07/14 18:16:13 schwarze Exp $ */
 /*
  * Copyright (c) 2010, 2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2012-2018 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2012-2019 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
@@ -193,7 +193,6 @@ enum	mandocerr {
 	MANDOCERR_TBLDATA_BLK, /* data block open at end of tbl: macro */
 
 	/* related to document structure and macros */
-	MANDOCERR_FILE, /* cannot open file */
 	MANDOCERR_PROLOG_REP, /* duplicate prologue macro: macro */
 	MANDOCERR_DT_LATE, /* skipping late title macro: Dt args */
 	MANDOCERR_ROFFLOOP, /* input stack limit exceeded, infinite loop? */
@@ -242,6 +241,35 @@ enum	mandocerr {
 	MANDOCERR_TBLLAYOUT_MOD, /* unsupported tbl layout modifier: m */
 	MANDOCERR_TBLMACRO, /* ignoring macro in table: macro */
 
+	MANDOCERR_BADARG, /* ===== start of bad invocations ===== */
+
+	MANDOCERR_BADARG_BAD, /* bad argument */
+	MANDOCERR_BADARG_DUPE, /* duplicate argument */
+	MANDOCERR_BADVAL, /* does not take a value */
+	MANDOCERR_BADVAL_MISS, /* missing argument value */
+	MANDOCERR_BADVAL_BAD, /* bad argument value */
+	MANDOCERR_BADVAL_DUPE, /* duplicate argument value */
+	MANDOCERR_TAG, /* no such tag */
+
+	MANDOCERR_SYSERR, /* ===== start of system errors ===== */
+
+	MANDOCERR_DUP,
+	MANDOCERR_EXEC,
+	MANDOCERR_FDOPEN,
+	MANDOCERR_FFLUSH,
+	MANDOCERR_FORK,
+	MANDOCERR_FSTAT,
+	MANDOCERR_GETLINE,
+	MANDOCERR_GLOB,
+	MANDOCERR_GZCLOSE,
+	MANDOCERR_GZDOPEN,
+	MANDOCERR_MKSTEMP,
+	MANDOCERR_OPEN,
+	MANDOCERR_PLEDGE,
+	MANDOCERR_READ,
+	MANDOCERR_WAIT,
+	MANDOCERR_WRITE,
+
 	MANDOCERR_MAX
 };
 
@@ -281,6 +309,7 @@ enum mandoclevel  mandoc_msg_getrc(void);
 void		  mandoc_msg_setrc(enum mandoclevel);
 void		  mandoc_msg(enum mandocerr, int, int, const char *, ...)
 			__attribute__((__format__ (__printf__, 4, 5)));
+void		  mandoc_msg_summary(void);
 void		  mchars_alloc(void);
 void		  mchars_free(void);
 int		  mchars_num2char(const char *, size_t);
diff --git a/mandoc_char.7 b/mandoc_char.7
index 578f37f180c0..b46575d4d250 100644
--- a/mandoc_char.7
+++ b/mandoc_char.7
@@ -1,4 +1,4 @@
-.\"	$Id: mandoc_char.7,v 1.75 2018/12/15 19:30:26 schwarze Exp $
+.\"	$Id: mandoc_char.7,v 1.76 2019/03/31 19:17:26 schwarze Exp $
 .\"
 .\" Copyright (c) 2003 Jason McIntyre <jmc@openbsd.org>
 .\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
@@ -16,7 +16,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: December 15 2018 $
+.Dd $Mdocdate: March 31 2019 $
 .Dt MANDOC_CHAR 7
 .Os
 .Sh NAME
@@ -107,8 +107,8 @@ supporting it, for example in
 .Fl T Cm utf8
 and
 .Fl T Cm html .
-But currently, no practically relevant manual page formatter actually
-requires that subtlety, so in manual pages just write plain
+But currently, no practically relevant manual page formatter requires
+that subtlety, so in manual pages, it is sufficient to write plain
 .Sq -
 to represent hyphen, minus, and hyphen-minus.
 .Pp
diff --git a/mandoc_headers.3 b/mandoc_headers.3
index 321384739116..2cda75cba8b3 100644
--- a/mandoc_headers.3
+++ b/mandoc_headers.3
@@ -1,4 +1,20 @@
-.Dd $Mdocdate: December 30 2018 $
+.\"	$Id: mandoc_headers.3,v 1.31 2019/03/17 18:21:45 schwarze Exp $
+.\"
+.\" Copyright (c) 2014-2019 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.
+.\"
+.Dd $Mdocdate: March 17 2019 $
 .Dt MANDOC_HEADERS 3
 .Os
 .Sh NAME
@@ -129,19 +145,19 @@ and the function
 Uses pointers to the types
 .Vt struct ohash
 from
-.Pa mandoc_ohash.h ,
+.Qq Pa mandoc_ohash.h ,
 .Vt struct mdoc_arg
 and
 .Vt union mdoc_data
 from
-.Pa mdoc.h ,
+.Qq Pa mdoc.h ,
 .Vt struct tbl_span
 from
-.Pa tbl.h ,
+.Qq Pa tbl.h ,
 and
 .Vt struct eqn_box
 from
-.Pa eqn.h
+.Qq Pa eqn.h
 as opaque struct members.
 .It Qq Pa tbl.h
 Data structures for the
@@ -184,13 +200,13 @@ Top level parser interface, for use in the main program
 and in the main parser, but not in formatters.
 .Pp
 Requires
-.Pa mandoc.h
+.Qq Pa mandoc.h
 for
 .Vt enum mandocerr
 and
 .Vt enum mandoclevel
 and
-.Pa roff.h
+.Qq Pa roff.h
 for
 .Vt enum mandoc_os .
 .Pp
@@ -202,7 +218,7 @@ for function prototypes.
 Uses
 .Vt struct roff_meta
 from
-.Pa roff.h
+.Qq Pa roff.h
 as an opaque type for function prototypes.
 .It Qq Pa mandoc_xr.h
 Cross reference validation; intended for use in the main program
@@ -251,11 +267,11 @@ described in
 Uses the types
 .Vt struct roff_node
 from
-.Pa roff.h
+.Qq Pa roff.h
 and
 .Vt struct roff_man
 from
-.Pa roff_int.h
+.Qq Pa roff_int.h
 as opaque types for function prototypes.
 .Pp
 When this header is included, the same file should not include
@@ -269,7 +285,7 @@ described in
 Uses the type
 .Vt struct roff_man
 from
-.Pa roff.h
+.Qq Pa roff.h
 as an opaque type for function prototypes.
 .Pp
 When this header is included, the same file should not include
@@ -305,7 +321,7 @@ for function prototypes.
 Uses the type
 .Vt struct roff_man
 from
-.Pa roff.h
+.Qq Pa roff.h
 as an opaque type for function prototypes.
 .It Qq Pa roff_int.h
 Parser internals shared by multiple parsers.
@@ -334,24 +350,24 @@ and the two special functions
 and
 .Fn mdoc_argv_free
 because the latter two are needed by
-.Qq Pa roff.c .
+.Pa roff.c .
 .Pp
 Uses the types
 .Vt struct ohash
 from
-.Pa mandoc_ohash.h ,
+.Qq Pa mandoc_ohash.h ,
 .Vt struct roff_node
 and
 .Vt struct roff_meta
 from
-.Pa roff.h ,
+.Qq Pa roff.h ,
 .Vt struct roff
 from
 .Pa roff.c ,
 and
 .Vt struct mdoc_arg
 from
-.Pa mdoc.h
+.Qq Pa mdoc.h
 as opaque types for function prototypes.
 .It Qq Pa libmdoc.h
 Requires
@@ -372,14 +388,14 @@ parser.
 Uses the types
 .Vt struct roff_node
 from
-.Pa roff.h ,
+.Qq Pa roff.h ,
 .Vt struct roff_man
 from
-.Pa roff_int.h ,
+.Qq Pa roff_int.h ,
 and
 .Vt struct mdoc_arg
 from
-.Pa mdoc.h
+.Qq Pa mdoc.h
 as opaque types for function prototypes.
 .Pp
 When this header is included, the same file should not include
@@ -399,11 +415,11 @@ parser.
 Uses the types
 .Vt struct roff_node
 from
-.Pa roff.h
+.Qq Pa roff.h
 and
 .Vt struct roff_man
 from
-.Pa roff_int.h
+.Qq Pa roff_int.h
 as opaque types for function prototypes.
 .Pp
 When this header is included, the same file should not include
@@ -437,12 +453,12 @@ and
 Uses the type
 .Vt struct eqn_box
 from
-.Pa mandoc.h
+.Qq Pa mandoc.h
 as an opaque type for function prototypes.
 Uses the types
 .Vt struct roff_node
 from
-.Pa roff.h
+.Qq Pa roff.h
 and
 .Vt struct eqn_def
 from
@@ -466,11 +482,11 @@ Provides the functions documented in
 Uses the types
 .Vt struct tbl_span
 from
-.Pa tbl.h
+.Qq Pa tbl.h
 and
 .Vt struct tbl_node
 from
-.Pa tbl_int.h
+.Qq Pa tbl_int.h
 as opaque types for function prototypes.
 .Pp
 When this header is included, the same file should not include
@@ -523,11 +539,11 @@ and
 Uses
 .Vt struct tbl_span
 from
-.Pa mandoc.h
+.Qq Pa mandoc.h
 as an opaque type for function prototypes.
 .Pp
 When this header is included, the same file should not include
-.Pa mansearch.h .
+.Qq Pa mansearch.h .
 .It Qq Pa term.h
 Requires
 .In sys/types.h
@@ -558,27 +574,30 @@ Uses
 and
 .Vt struct eqn_box
 from
-.Pa mandoc.h
+.Qq Pa mandoc.h
 and
 .Vt struct roff_meta
 and
 .Vt struct roff_node
 from
-.Pa roff.h
+.Qq Pa roff.h
 as opaque types for function prototypes.
 .Pp
 When this header is included, the same file should not include
-.Pa html.h
+.Qq Pa html.h
 or
-.Pa mansearch.h .
+.Qq Pa mansearch.h .
 .It Qq Pa html.h
 Requires
 .In sys/types.h
 for
 .Vt size_t ,
-.Pa mandoc.h
+.Qq Pa mandoc.h
 for
 .Vt enum mandoc_esc ,
+.Qq Pa roff.h
+for
+.Vt enum roff_tok ,
 and
 .Qq Pa out.h
 for
@@ -602,17 +621,17 @@ Uses
 and
 .Vt struct eqn_box
 from
-.Pa mandoc.h
+.Qq Pa mandoc.h
 and
 .Vt struct roff_node
 from
-.Pa roff.h
+.Qq Pa roff.h
 as opaque types for function prototypes.
 .Pp
 When this header is included, the same file should not include
-.Pa term.h
+.Qq Pa term.h
 or
-.Pa mansearch.h .
+.Qq Pa mansearch.h .
 .It Qq Pa tag.h
 Requires
 .In sys/types.h
@@ -631,7 +650,7 @@ Provides the top level steering functions for all formatters.
 Uses the type
 .Vt struct roff_meta
 from
-.Pa roff.h
+.Qq Pa roff.h
 as an opaque type for function prototypes.
 .It Qq Pa manconf.h
 Requires
@@ -671,12 +690,12 @@ and
 Uses
 .Vt struct manpaths
 from
-.Pa manconf.h
+.Qq Pa manconf.h
 as an opaque type for function prototypes.
 .Pp
 When this header is included, the same file should not include
-.Pa out.h ,
-.Pa term.h ,
+.Qq Pa out.h ,
+.Qq Pa term.h ,
 or
-.Pa html.h .
+.Qq Pa html.h .
 .El
diff --git a/mandoc_msg.c b/mandoc_msg.c
index ff4d80313c2c..e73dcfd830ff 100644
--- a/mandoc_msg.c
+++ b/mandoc_msg.c
@@ -1,7 +1,7 @@
-/*	$Id: mandoc_msg.c,v 1.6 2019/03/06 15:55:38 schwarze Exp $ */
+/*	$Id: mandoc_msg.c,v 1.8 2019/07/14 18:16:13 schwarze Exp $ */
 /*
  * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2014,2015,2016,2017,2018 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2014-2019 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
@@ -29,8 +29,8 @@ static	const enum mandocerr lowest_type[MANDOCLEVEL_MAX] = {
 	MANDOCERR_WARNING,
 	MANDOCERR_ERROR,
 	MANDOCERR_UNSUPP,
-	MANDOCERR_MAX,
-	MANDOCERR_MAX
+	MANDOCERR_BADARG,
+	MANDOCERR_SYSERR
 };
 
 static	const char *const level_name[MANDOCLEVEL_MAX] = {
@@ -193,7 +193,6 @@ static	const char *const type_message[MANDOCERR_MAX] = {
 	"data block open at end of tbl",
 
 	/* related to document structure and macros */
-	NULL,
 	"duplicate prologue macro",
 	"skipping late title macro",
 	"input stack limit exceeded, infinite loop?",
@@ -240,11 +239,40 @@ static	const char *const type_message[MANDOCERR_MAX] = {
 	"eqn delim option in tbl",
 	"unsupported tbl layout modifier",
 	"ignoring macro in table",
+
+	/* bad command line arguments */
+	NULL,
+	"bad command line argument",
+	"duplicate command line argument",
+	"option has a superfluous value",
+	"missing option value",
+	"bad option value",
+	"duplicate option value",
+	"no such tag",
+
+	/* system errors */
+	NULL,
+	"dup",
+	"exec",
+	"fdopen",
+	"fflush",
+	"fork",
+	"fstat",
+	"getline",
+	"glob",
+	"gzclose",
+	"gzdopen",
+	"mkstemp",
+	"open",
+	"pledge",
+	"read",
+	"wait",
+	"write",
 };
 
 static	FILE		*fileptr = NULL;
 static	const char	*filename = NULL;
-static	enum mandocerr	 min_type = MANDOCERR_MAX;
+static	enum mandocerr	 min_type = MANDOCERR_BADARG;
 static	enum mandoclevel rc = MANDOCLEVEL_OK;
 
 
@@ -297,10 +325,10 @@ mandoc_msg(enum mandocerr t, int line, int col, const char *fmt, ...)
 	va_list			 ap;
 	enum mandoclevel	 level;
 
-	if (t < min_type && t != MANDOCERR_FILE)
+	if (t < min_type)
 		return;
 
-	level = MANDOCLEVEL_UNSUPP;
+	level = MANDOCLEVEL_SYSERR;
 	while (t < lowest_type[level])
 		level--;
 	mandoc_msg_setrc(level);
@@ -327,3 +355,12 @@ mandoc_msg(enum mandocerr t, int line, int col, const char *fmt, ...)
 	}
 	fputc('\n', fileptr);
 }
+
+void
+mandoc_msg_summary(void)
+{
+	if (fileptr != NULL && rc != MANDOCLEVEL_OK)
+		fprintf(fileptr,
+		    "%s: see above the output for %s messages\n",
+		    getprogname(), level_name[rc]);
+}
diff --git a/mandocdb.c b/mandocdb.c
index 222350c987b6..64ac10115877 100644
--- a/mandocdb.c
+++ b/mandocdb.c
@@ -1,7 +1,7 @@
-/*	$Id: mandocdb.c,v 1.262 2018/12/30 00:49:55 schwarze Exp $ */
+/*	$Id: mandocdb.c,v 1.263 2019/05/03 18:17:12 schwarze Exp $ */
 /*
  * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2011-2018 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2011-2019 Ingo Schwarze <schwarze@openbsd.org>
  * Copyright (c) 2016 Ed Maste <emaste@freebsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
@@ -1186,9 +1186,11 @@ mpages_merge(struct dba *dba, struct mparse *mp)
 				mlink->next = mlink_dest->next;
 				mlink_dest->next = mpage->mlinks;
 				mpage->mlinks = NULL;
+				goto nextpage;
 			}
-			goto nextpage;
-		} else if (meta != NULL && meta->macroset == MACROSET_MDOC) {
+			meta->macroset = MACROSET_NONE;
+		}
+		if (meta != NULL && meta->macroset == MACROSET_MDOC) {
 			mpage->form = FORM_SRC;
 			mpage->sec = meta->msec;
 			mpage->sec = mandoc_strdup(
@@ -1208,12 +1210,15 @@ mpages_merge(struct dba *dba, struct mparse *mp)
 		}
 
 		assert(mpage->desc == NULL);
-		if (meta == NULL) {
-			mpage->form = FORM_CAT;
+		if (meta == NULL || meta->sodest != NULL) {
 			mpage->sec = mandoc_strdup(mlink->dsec);
 			mpage->arch = mandoc_strdup(mlink->arch);
 			mpage->title = mandoc_strdup(mlink->name);
-			parse_cat(mpage, fd);
+			if (meta == NULL) {
+				mpage->form = FORM_CAT;
+				parse_cat(mpage, fd);
+			} else
+				mpage->form = FORM_SRC;
 		} else if (meta->macroset == MACROSET_MDOC)
 			parse_mdoc(mpage, meta, meta->first);
 		else
diff --git a/manpath.c b/manpath.c
index 74f38a95db9e..e4578ccec364 100644
--- a/manpath.c
+++ b/manpath.c
@@ -1,6 +1,6 @@
-/*	$Id: manpath.c,v 1.37 2018/11/22 11:30:23 schwarze Exp $ */
+/*	$Id: manpath.c,v 1.40 2019/07/10 19:39:01 schwarze Exp $ */
 /*
- * Copyright (c) 2011,2014,2015,2017,2018 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2011,2014,2015,2017-2019 Ingo Schwarze <schwarze@openbsd.org>
  * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  *
  * Permission to use, copy, modify, and distribute this software for any
@@ -21,20 +21,19 @@
 #include <sys/stat.h>
 
 #include <ctype.h>
-#if HAVE_ERR
-#include <err.h>
-#endif
+#include <errno.h>
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include "mandoc_aux.h"
+#include "mandoc.h"
 #include "manconf.h"
 
 static	void	 manconf_file(struct manconf *, const char *);
-static	void	 manpath_add(struct manpaths *, const char *, int);
-static	void	 manpath_parseline(struct manpaths *, char *, int);
+static	void	 manpath_add(struct manpaths *, const char *, char);
+static	void	 manpath_parseline(struct manpaths *, char *, char);
 
 
 void
@@ -44,11 +43,11 @@ manconf_parse(struct manconf *conf, const char *file,
 	char		*insert;
 
 	/* Always prepend -m. */
-	manpath_parseline(&conf->manpath, auxp, 1);
+	manpath_parseline(&conf->manpath, auxp, 'm');
 
 	/* If -M is given, it overrides everything else. */
 	if (NULL != defp) {
-		manpath_parseline(&conf->manpath, defp, 1);
+		manpath_parseline(&conf->manpath, defp, 'M');
 		return;
 	}
 
@@ -66,13 +65,13 @@ manconf_parse(struct manconf *conf, const char *file,
 	/* Prepend man.conf(5) to MANPATH. */
 	if (':' == defp[0]) {
 		manconf_file(conf, file);
-		manpath_parseline(&conf->manpath, defp, 0);
+		manpath_parseline(&conf->manpath, defp, '\0');
 		return;
 	}
 
 	/* Append man.conf(5) to MANPATH. */
 	if (':' == defp[strlen(defp) - 1]) {
-		manpath_parseline(&conf->manpath, defp, 0);
+		manpath_parseline(&conf->manpath, defp, '\0');
 		manconf_file(conf, file);
 		return;
 	}
@@ -81,28 +80,28 @@ manconf_parse(struct manconf *conf, const char *file,
 	insert = strstr(defp, "::");
 	if (NULL != insert) {
 		*insert++ = '\0';
-		manpath_parseline(&conf->manpath, defp, 0);
+		manpath_parseline(&conf->manpath, defp, '\0');
 		manconf_file(conf, file);
-		manpath_parseline(&conf->manpath, insert + 1, 0);
+		manpath_parseline(&conf->manpath, insert + 1, '\0');
 		return;
 	}
 
 	/* MANPATH overrides man.conf(5) completely. */
-	manpath_parseline(&conf->manpath, defp, 0);
+	manpath_parseline(&conf->manpath, defp, '\0');
 }
 
 void
 manpath_base(struct manpaths *dirs)
 {
 	char path_base[] = MANPATH_BASE;
-	manpath_parseline(dirs, path_base, 0);
+	manpath_parseline(dirs, path_base, '\0');
 }
 
 /*
  * Parse a FULL pathname from a colon-separated list of arrays.
  */
 static void
-manpath_parseline(struct manpaths *dirs, char *path, int complain)
+manpath_parseline(struct manpaths *dirs, char *path, char option)
 {
 	char	*dir;
 
@@ -110,7 +109,7 @@ manpath_parseline(struct manpaths *dirs, char *path, int complain)
 		return;
 
 	for (dir = strtok(path, ":"); dir; dir = strtok(NULL, ":"))
-		manpath_add(dirs, dir, complain);
+		manpath_add(dirs, dir, option);
 }
 
 /*
@@ -118,33 +117,32 @@ manpath_parseline(struct manpaths *dirs, char *path, int complain)
  * Grow the array one-by-one for simplicity's sake.
  */
 static void
-manpath_add(struct manpaths *dirs, const char *dir, int complain)
+manpath_add(struct manpaths *dirs, const char *dir, char option)
 {
 	char		 buf[PATH_MAX];
 	struct stat	 sb;
 	char		*cp;
 	size_t		 i;
 
-	if (NULL == (cp = realpath(dir, buf))) {
-		if (complain)
-			warn("manpath: %s", dir);
-		return;
-	}
+	if ((cp = realpath(dir, buf)) == NULL)
+		goto fail;
 
 	for (i = 0; i < dirs->sz; i++)
-		if (0 == strcmp(dirs->paths[i], dir))
+		if (strcmp(dirs->paths[i], dir) == 0)
 			return;
 
-	if (stat(cp, &sb) == -1) {
-		if (complain)
-			warn("manpath: %s", dir);
-		return;
-	}
+	if (stat(cp, &sb) == -1)
+		goto fail;
 
 	dirs->paths = mandoc_reallocarray(dirs->paths,
-	    dirs->sz + 1, sizeof(char *));
-
+	    dirs->sz + 1, sizeof(*dirs->paths));
 	dirs->paths[dirs->sz++] = mandoc_strdup(cp);
+	return;
+
+fail:
+	if (option != '\0')
+		mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
+		    "-%c %s: %s", option, dir, strerror(errno));
 }
 
 void
@@ -210,7 +208,7 @@ manconf_file(struct manconf *conf, const char *file)
 			*ep = '\0';
 			/* FALLTHROUGH */
 		case 0:  /* manpath */
-			manpath_add(&conf->manpath, cp, 0);
+			manpath_add(&conf->manpath, cp, '\0');
 			*manpath_default = '\0';
 			break;
 		case 1:  /* output */
@@ -225,7 +223,7 @@ manconf_file(struct manconf *conf, const char *file)
 
 out:
 	if (*manpath_default != '\0')
-		manpath_parseline(&conf->manpath, manpath_default, 0);
+		manpath_parseline(&conf->manpath, manpath_default, '\0');
 }
 
 int
@@ -235,14 +233,15 @@ manconf_output(struct manoutput *conf, const char *cp, int fromfile)
 	    "includes", "man", "paper", "style", "indent", "width",
 	    "tag", "fragment", "mdoc", "noval", "toc"
 	};
+	const size_t ntoks = sizeof(toks) / sizeof(toks[0]);
 
 	const char	*errstr;
 	char		*oldval;
 	size_t		 len, tok;
 
-	for (tok = 0; tok < sizeof(toks)/sizeof(toks[0]); tok++) {
+	for (tok = 0; tok < ntoks; tok++) {
 		len = strlen(toks[tok]);
-		if ( ! strncmp(cp, toks[tok], len) &&
+		if (strncmp(cp, toks[tok], len) == 0 &&
 		    strchr(" =	", cp[len]) != NULL) {
 			cp += len;
 			if (*cp == '=')
@@ -254,11 +253,11 @@ manconf_output(struct manoutput *conf, const char *cp, int fromfile)
 	}
 
 	if (tok < 6 && *cp == '\0') {
-		warnx("-O %s=?: Missing argument value", toks[tok]);
+		mandoc_msg(MANDOCERR_BADVAL_MISS, 0, 0, "-O %s=?", toks[tok]);
 		return -1;
 	}
-	if (tok > 6 && *cp != '\0') {
-		warnx("-O %s: Does not take a value: %s", toks[tok], cp);
+	if (tok > 6 && tok < ntoks && *cp != '\0') {
+		mandoc_msg(MANDOCERR_BADVAL, 0, 0, "-O %s=%s", toks[tok], cp);
 		return -1;
 	}
 
@@ -299,7 +298,8 @@ manconf_output(struct manoutput *conf, const char *cp, int fromfile)
 		conf->indent = strtonum(cp, 0, 1000, &errstr);
 		if (errstr == NULL)
 			return 0;
-		warnx("-O indent=%s is %s", cp, errstr);
+		mandoc_msg(MANDOCERR_BADVAL_BAD, 0, 0,
+		    "-O indent=%s is %s", cp, errstr);
 		return -1;
 	case 5:
 		if (conf->width) {
@@ -309,7 +309,8 @@ manconf_output(struct manoutput *conf, const char *cp, int fromfile)
 		conf->width = strtonum(cp, 1, 1000, &errstr);
 		if (errstr == NULL)
 			return 0;
-		warnx("-O width=%s is %s", cp, errstr);
+		mandoc_msg(MANDOCERR_BADVAL_BAD, 0, 0,
+		    "-O width=%s is %s", cp, errstr);
 		return -1;
 	case 6:
 		if (conf->tag != NULL) {
@@ -331,13 +332,16 @@ manconf_output(struct manoutput *conf, const char *cp, int fromfile)
 		conf->toc = 1;
 		return 0;
 	default:
-		if (fromfile)
-			warnx("-O %s: Bad argument", cp);
+		mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-O %s", cp);
+		return -1;
+	}
+	if (fromfile) {
+		free(oldval);
+		return 0;
+	} else {
+		mandoc_msg(MANDOCERR_BADVAL_DUPE, 0, 0,
+		    "-O %s=%s: already set to %s", toks[tok], cp, oldval);
+		free(oldval);
 		return -1;
 	}
-	if (fromfile == 0)
-		warnx("-O %s=%s: Option already set to %s",
-		    toks[tok], cp, oldval);
-	free(oldval);
-	return -1;
 }
diff --git a/mansearch.c b/mansearch.c
index 0c457f95d109..59a35771970c 100644
--- a/mansearch.c
+++ b/mansearch.c
@@ -1,4 +1,4 @@
-/*	$Id: mansearch.c,v 1.80 2018/12/13 11:55:46 schwarze Exp $ */
+/*	$Id: mansearch.c,v 1.82 2019/07/01 22:56:24 schwarze Exp $ */
 /*
  * Copyright (c) 2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2013-2018 Ingo Schwarze <schwarze@openbsd.org>
@@ -191,7 +191,7 @@ mansearch(const struct mansearch *search,
 			    mpage->file, R_OK) == -1) {
 				warn("%s", mpage->file);
 				warnx("outdated mandoc.db contains "
-				    "bogus %s entry, run makewhatis %s", 
+				    "bogus %s entry, run makewhatis %s",
 				    page->file + 1, paths->paths[i]);
 				free(mpage->file);
 				free(rp);
@@ -199,6 +199,7 @@ mansearch(const struct mansearch *search,
 			}
 			mpage->names = buildnames(page);
 			mpage->output = buildoutput(outkey, page);
+			mpage->bits = search->firstmatch ? rp->bits : 0;
 			mpage->ipath = i;
 			mpage->sec = *page->sect - '0';
 			if (mpage->sec < 0 || mpage->sec > 9)
@@ -294,8 +295,10 @@ manmerge_term(struct expr *e, struct ohash *htab)
 				break;
 			slot = ohash_lookup_memory(htab,
 			    (char *)&res, sizeof(res.page), res.page);
-			if ((rp = ohash_find(htab, slot)) != NULL)
+			if ((rp = ohash_find(htab, slot)) != NULL) {
+				rp->bits |= res.bits;
 				continue;
+			}
 			rp = mandoc_malloc(sizeof(*rp));
 			*rp = res;
 			ohash_insert(htab, slot, rp);
@@ -408,7 +411,8 @@ manpage_compare(const void *vp1, const void *vp2)
 
 	mp1 = vp1;
 	mp2 = vp2;
-	if ((diff = mp1->sec - mp2->sec))
+	if ((diff = mp2->bits - mp1->bits) ||
+	    (diff = mp1->sec - mp2->sec))
 		return diff;
 
 	/* Fall back to alphabetic ordering of names. */
diff --git a/mansearch.h b/mansearch.h
index 355873f83e09..8a0aa121d0c6 100644
--- a/mansearch.h
+++ b/mansearch.h
@@ -1,4 +1,4 @@
-/*	$Id: mansearch.h,v 1.29 2018/11/22 12:01:46 schwarze Exp $ */
+/*	$Id: mansearch.h,v 1.30 2019/04/30 18:51:57 schwarze Exp $ */
 /*
  * Copyright (c) 2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2013, 2014, 2016, 2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -92,6 +92,7 @@ struct	manpage {
 	char		*file; /* to be prefixed by manpath */
 	char		*names; /* a list of names with sections */
 	char		*output; /* user-defined additional output */
+	uint64_t	 bits; /* name type mask */
 	size_t		 ipath; /* number of the manpath */
 	int		 sec; /* section number, 10 means invalid */
 	enum form	 form;
diff --git a/mdoc.7 b/mdoc.7
index 0624ce788cd2..deca4ba88c05 100644
--- a/mdoc.7
+++ b/mdoc.7
@@ -1,4 +1,4 @@
-.\"	$Id: mdoc.7,v 1.276 2019/02/07 15:45:53 schwarze Exp $
+.\"	$Id: mdoc.7,v 1.279 2019/07/15 19:20:30 schwarze Exp $
 .\"
 .\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 .\" Copyright (c) 2010, 2011, 2013-2018 Ingo Schwarze <schwarze@openbsd.org>
@@ -15,7 +15,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: February 7 2019 $
+.Dd $Mdocdate: July 15 2019 $
 .Dt MDOC 7
 .Os
 .Sh NAME
@@ -596,6 +596,13 @@ block.
 Book or journal page number of an
 .Ic \&Rs
 block.
+Conventionally, the argument starts with
+.Ql p.\&
+for a single page or
+.Ql pp.\&
+for a range of pages, for example:
+.Pp
+.Dl .%P pp. 42\e(en47
 .It Ic \&%Q Ar name
 Institutional author (school, government, etc.) of an
 .Ic \&Rs
@@ -1156,17 +1163,19 @@ declarations.
 This practise is discouraged.
 .It Ic \&Cm Ar keyword ...
 Command modifiers.
-Typically used for fixed strings passed as arguments, unless
+Typically used for fixed strings passed as arguments to interactive
+commands, to commands in interpreted scripts, or to configuration
+file directives, unless
 .Ic \&Fl
 is more appropriate.
-Also useful when specifying configuration options or keys.
 .Pp
 Examples:
 .Dl ".Nm mt Fl f Ar device Cm rewind"
 .Dl ".Nm ps Fl o Cm pid , Ns Cm command"
 .Dl ".Nm dd Cm if= Ns Ar file1 Cm of= Ns Ar file2"
-.Dl ".Cm IdentityFile Pa ~/.ssh/id_rsa"
-.Dl ".Cm LogLevel Dv DEBUG"
+.Dl ".Ic set Fl o Cm vi"
+.Dl ".Ic lookup Cm file bind"
+.Dl ".Ic permit Ar identity Op Cm as Ar target"
 .It Ic \&D1 Ar line
 One-line indented display.
 This is formatted by the default rules and is useful for simple indented
@@ -1677,10 +1686,10 @@ This macro is not implemented in
 .Xr mandoc 1 .
 It was used to include the contents of a (header) file literally.
 .It Ic \&Ic Ar keyword ...
-Designate an internal or interactive command.
-This is similar to
-.Ic \&Cm
-but used for instructions rather than values.
+Internal or interactive command, or configuration instruction
+in a configuration file.
+See also
+.Ic \&Cm .
 .Pp
 Examples:
 .Dl \&.Ic :wq
@@ -2969,7 +2978,7 @@ exclamation mark
 Note that even a period preceded by a backslash
 .Pq Sq \e.\&
 gets this special handling; use
-.Sq \e&.
+.Sq \e&.\&
 to prevent that.
 .Pp
 Many in-line macros interrupt their scope when they encounter
@@ -2996,6 +3005,13 @@ in the same way as a plain
 .Sq \&|
 character.
 Using this predefined string is not recommended in new manuals.
+.Pp
+Appending a zero-width space
+.Pq Sq \e&
+to the end of an input line is also useful to prevent the interpretation
+of a trailing period, exclamation or question mark as the end of a
+sentence, for example when an abbreviation happens to occur
+at the end of a text or macro input line.
 .Ss Font handling
 In
 .Nm
diff --git a/mdoc_argv.c b/mdoc_argv.c
index f4ce4a8730f3..1bfd336b7a97 100644
--- a/mdoc_argv.c
+++ b/mdoc_argv.c
@@ -1,7 +1,7 @@
-/*	$Id: mdoc_argv.c,v 1.119 2018/12/21 17:15:19 schwarze Exp $ */
+/*	$Id: mdoc_argv.c,v 1.120 2019/07/11 17:06:17 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2012, 2014-2018 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2012, 2014-2019 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
@@ -454,6 +454,7 @@ args(struct roff_man *mdoc, int line, int *pos,
 			mandoc_msg(MANDOCERR_ARG_QUOTE, line, *pos, NULL);
 			mdoc->flags &= ~MDOC_PHRASELIT;
 		}
+		mdoc->flags &= ~MDOC_PHRASEQL;
 		return ARGS_EOLN;
 	}
 
diff --git a/mdoc_markdown.c b/mdoc_markdown.c
index e9a931218cc4..88e37c0b188b 100644
--- a/mdoc_markdown.c
+++ b/mdoc_markdown.c
@@ -1,4 +1,4 @@
-/*	$Id: mdoc_markdown.c,v 1.30 2018/12/30 00:49:55 schwarze Exp $ */
+/*	$Id: mdoc_markdown.c,v 1.31 2019/07/01 22:56:24 schwarze Exp $ */
 /*
  * Copyright (c) 2017, 2018 Ingo Schwarze <schwarze@openbsd.org>
  *
@@ -1290,7 +1290,7 @@ md_post_It(struct roff_node *n)
 		while ((n = n->prev) != NULL && n->type != ROFFT_HEAD)
 			i++;
 
-		/* 
+		/*
 		 * If a width was specified for this column,
 		 * subtract what printed, and
 		 * add the same spacing as in mdoc_term.c.
diff --git a/mdoc_term.c b/mdoc_term.c
index 52ff27e17f11..18f0ff09e2c7 100644
--- a/mdoc_term.c
+++ b/mdoc_term.c
@@ -1,4 +1,4 @@
-/*	$Id: mdoc_term.c,v 1.372 2019/01/04 03:39:01 schwarze Exp $ */
+/*	$Id: mdoc_term.c,v 1.374 2019/06/27 12:20:18 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010, 2012-2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -253,7 +253,7 @@ static	int	 fn_prio;
 void
 terminal_mdoc(void *arg, const struct roff_meta *mdoc)
 {
-	struct roff_node	*n;
+	struct roff_node	*n, *nn;
 	struct termp		*p;
 	size_t			 save_defindent;
 
@@ -265,16 +265,20 @@ terminal_mdoc(void *arg, const struct roff_meta *mdoc)
 
 	n = mdoc->first->child;
 	if (p->synopsisonly) {
-		while (n != NULL) {
-			if (n->tok == MDOC_Sh && n->sec == SEC_SYNOPSIS) {
-				if (n->child->next->child != NULL)
-					print_mdoc_nodelist(p, NULL,
-					    mdoc, n->child->next->child);
-				term_newln(p);
+		for (nn = NULL; n != NULL; n = n->next) {
+			if (n->tok != MDOC_Sh)
+				continue;
+			if (n->sec == SEC_SYNOPSIS)
 				break;
-			}
-			n = n->next;
+			if (nn == NULL && n->sec == SEC_NAME)
+				nn = n;
 		}
+		if (n == NULL)
+			n = nn;
+		p->flags |= TERMP_NOSPACE;
+		if (n != NULL && (n = n->child->next->child) != NULL)
+			print_mdoc_nodelist(p, NULL, mdoc, n);
+		term_newln(p);
 	} else {
 		save_defindent = p->defindent;
 		if (p->defindent == 0)
@@ -352,6 +356,7 @@ print_mdoc_node(DECL_ARGS)
 	 * produce output.  Note that some pre-handlers do so.
 	 */
 
+	act = NULL;
 	switch (n->type) {
 	case ROFFT_TEXT:
 		if (n->flags & NODE_LINE) {
diff --git a/mdoc_validate.c b/mdoc_validate.c
index 7d1575f2f0f1..11cdf00b56cb 100644
--- a/mdoc_validate.c
+++ b/mdoc_validate.c
@@ -1,4 +1,4 @@
-/*	$Id: mdoc_validate.c,v 1.371 2019/03/04 13:01:57 schwarze Exp $ */
+/*	$Id: mdoc_validate.c,v 1.374 2019/06/27 15:07:30 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -64,7 +64,7 @@ static	size_t		macro2len(enum roff_tok);
 static	void	 rewrite_macro2len(struct roff_man *, char **);
 static	int	 similar(const char *, const char *);
 
-static	void	 post_abort(POST_ARGS);
+static	void	 post_abort(POST_ARGS) __attribute__((__noreturn__));
 static	void	 post_an(POST_ARGS);
 static	void	 post_an_norm(POST_ARGS);
 static	void	 post_at(POST_ARGS);
@@ -1903,8 +1903,7 @@ post_root(POST_ARGS)
 	/* Add missing prologue data. */
 
 	if (mdoc->meta.date == NULL)
-		mdoc->meta.date = mdoc->quick ? mandoc_strdup("") :
-		    mandoc_normdate(mdoc, NULL, 0, 0);
+		mdoc->meta.date = mandoc_normdate(mdoc, NULL, 0, 0);
 
 	if (mdoc->meta.title == NULL) {
 		mandoc_msg(MANDOCERR_DT_NOTITLE, 0, 0, "EOF");
@@ -2519,21 +2518,10 @@ post_dd(POST_ARGS)
 		mandoc_msg(MANDOCERR_PROLOG_ORDER,
 		    n->line, n->pos, "Dd after Os");
 
-	if (n->child == NULL || n->child->string[0] == '\0') {
-		mdoc->meta.date = mdoc->quick ? mandoc_strdup("") :
-		    mandoc_normdate(mdoc, NULL, n->line, n->pos);
-		return;
-	}
-
 	datestr = NULL;
 	deroff(&datestr, n);
-	if (mdoc->quick)
-		mdoc->meta.date = datestr;
-	else {
-		mdoc->meta.date = mandoc_normdate(mdoc,
-		    datestr, n->line, n->pos);
-		free(datestr);
-	}
+	mdoc->meta.date = mandoc_normdate(mdoc, datestr, n->line, n->pos);
+	free(datestr);
 }
 
 static void
diff --git a/out.c b/out.c
index 363d04cf979d..d0b0d0a2ace3 100644
--- a/out.c
+++ b/out.c
@@ -1,4 +1,4 @@
-/*	$Id: out.c,v 1.77 2018/12/13 11:55:47 schwarze Exp $ */
+/*	$Id: out.c,v 1.78 2019/03/29 21:27:06 schwarze Exp $ */
 /*
  * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2011,2014,2015,2017,2018 Ingo Schwarze <schwarze@openbsd.org>
@@ -149,7 +149,7 @@ tblcalc(struct rofftbl *tbl, const struct tbl_span *sp_first,
 		gp = &first_group;
 		for (dp = sp->first; dp != NULL; dp = dp->next) {
 			icol = dp->layout->col;
-			while (icol > maxcol)
+			while (maxcol < icol + dp->hspans)
 				tbl->cols[++maxcol].spacing = SIZE_MAX;
 			col = tbl->cols + icol;
 			col->flags |= dp->layout->flags;
diff --git a/read.c b/read.c
index a3a1f982c01c..b3858061e710 100644
--- a/read.c
+++ b/read.c
@@ -1,4 +1,4 @@
-/*	$Id: read.c,v 1.211 2019/01/11 17:04:44 schwarze Exp $ */
+/*	$Id: read.c,v 1.214 2019/07/10 19:39:01 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -157,7 +157,7 @@ mparse_buf_r(struct mparse *curp, struct buf blk, size_t i, int start)
 	ln.sz = 256;
 	ln.buf = mandoc_malloc(ln.sz);
 	ln.next = NULL;
-	firstln = loop = NULL;
+	firstln = lastln = loop = NULL;
 	lnn = curp->line;
 	pos = 0;
 	inloop = 0;
@@ -255,6 +255,8 @@ mparse_buf_r(struct mparse *curp, struct buf blk, size_t i, int start)
 		/* XXX Ugly hack to mark the end of the input. */
 
 		if (i == blk.sz || blk.buf[i] == '\0') {
+			if (pos + 2 > ln.sz)
+				resize_buf(&ln, 256);
 			ln.buf[pos++] = '\n';
 			ln.buf[pos] = '\0';
 		}
@@ -429,9 +431,8 @@ read_whole_file(struct mparse *curp, int fd, struct buf *fb, int *with_mmap)
 	int		 gzerrnum, retval;
 
 	if (fstat(fd, &st) == -1) {
-		mandoc_msg(MANDOCERR_FILE, 0, 0,
-		    "fstat: %s", strerror(errno));
-		return 0;
+		mandoc_msg(MANDOCERR_FSTAT, 0, 0, "%s", strerror(errno));
+		return -1;
 	}
 
 	/*
@@ -444,13 +445,13 @@ read_whole_file(struct mparse *curp, int fd, struct buf *fb, int *with_mmap)
 	if (curp->gzip == 0 && S_ISREG(st.st_mode)) {
 		if (st.st_size > 0x7fffffff) {
 			mandoc_msg(MANDOCERR_TOOLARGE, 0, 0, NULL);
-			return 0;
+			return -1;
 		}
 		*with_mmap = 1;
 		fb->sz = (size_t)st.st_size;
 		fb->buf = mmap(NULL, fb->sz, PROT_READ, MAP_SHARED, fd, 0);
 		if (fb->buf != MAP_FAILED)
-			return 1;
+			return 0;
 	}
 
 	if (curp->gzip) {
@@ -462,15 +463,15 @@ read_whole_file(struct mparse *curp, int fd, struct buf *fb, int *with_mmap)
 		 * which this function must not do.
 		 */
 		if ((fd = dup(fd)) == -1) {
-			mandoc_msg(MANDOCERR_FILE, 0, 0,
-			    "dup: %s", strerror(errno));
-			return 0;
+			mandoc_msg(MANDOCERR_DUP, 0, 0,
+			    "%s", strerror(errno));
+			return -1;
 		}
 		if ((gz = gzdopen(fd, "rb")) == NULL) {
-			mandoc_msg(MANDOCERR_FILE, 0, 0,
-			    "gzdopen: %s", strerror(errno));
+			mandoc_msg(MANDOCERR_GZDOPEN, 0, 0,
+			    "%s", strerror(errno));
 			close(fd);
-			return 0;
+			return -1;
 		}
 	} else
 		gz = NULL;
@@ -482,7 +483,7 @@ read_whole_file(struct mparse *curp, int fd, struct buf *fb, int *with_mmap)
 
 	*with_mmap = 0;
 	off = 0;
-	retval = 0;
+	retval = -1;
 	fb->sz = 0;
 	fb->buf = NULL;
 	for (;;) {
@@ -498,13 +499,13 @@ read_whole_file(struct mparse *curp, int fd, struct buf *fb, int *with_mmap)
 		    read(fd, fb->buf + (int)off, fb->sz - off);
 		if (ssz == 0) {
 			fb->sz = off;
-			retval = 1;
+			retval = 0;
 			break;
 		}
 		if (ssz == -1) {
 			if (curp->gzip)
 				(void)gzerror(gz, &gzerrnum);
-			mandoc_msg(MANDOCERR_FILE, 0, 0, "read: %s",
+			mandoc_msg(MANDOCERR_READ, 0, 0, "%s",
 			    curp->gzip && gzerrnum != Z_ERRNO ?
 			    zError(gzerrnum) : strerror(errno));
 			break;
@@ -513,10 +514,10 @@ read_whole_file(struct mparse *curp, int fd, struct buf *fb, int *with_mmap)
 	}
 
 	if (curp->gzip && (gzerrnum = gzclose(gz)) != Z_OK)
-		mandoc_msg(MANDOCERR_FILE, 0, 0, "gzclose: %s",
+		mandoc_msg(MANDOCERR_GZCLOSE, 0, 0, "%s",
 		    gzerrnum == Z_ERRNO ? strerror(errno) :
 		    zError(gzerrnum));
-	if (retval == 0) {
+	if (retval == -1) {
 		free(fb->buf);
 		fb->buf = NULL;
 	}
@@ -555,7 +556,7 @@ mparse_readfd(struct mparse *curp, int fd, const char *filename)
 		mandoc_msg(MANDOCERR_ROFFLOOP, curp->line, 0, NULL);
 		return;
 	}
-	if (read_whole_file(curp, fd, &blk, &with_mmap) == 0)
+	if (read_whole_file(curp, fd, &blk, &with_mmap) == -1)
 		return;
 
 	/*
diff --git a/roff.7 b/roff.7
index de76a3c4d246..f129750b1b0e 100644
--- a/roff.7
+++ b/roff.7
@@ -1,4 +1,4 @@
-.\"	$Id: roff.7,v 1.111 2019/01/01 03:45:29 schwarze Exp $
+.\"	$Id: roff.7,v 1.114 2019/07/15 19:20:30 schwarze Exp $
 .\"
 .\" Copyright (c) 2010, 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
 .\" Copyright (c) 2010-2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -15,7 +15,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: January 1 2019 $
+.Dd $Mdocdate: July 15 2019 $
 .Dt ROFF 7
 .Os
 .Sh NAME
@@ -315,12 +315,18 @@ delimiters
 The proper spacing is also intelligently preserved if a sentence ends at
 the boundary of a macro line.
 .Pp
+If an input line happens to end with a period, exclamation or question
+mark that isn't the end of a sentence, append a zero-width space
+.Pq Sq \e& .
+.Pp
 Examples:
 .Bd -literal -offset indent -compact
 Do not end sentences mid-line like this.  Instead,
 end a sentence like this.
 A macro would end like this:
 \&.Xr mandoc 1 \&.
+An abbreviation at the end of an input line needs escaping, e.g.\e&
+like this.
 .Ed
 .Sh REQUEST SYNTAX
 A request or macro line consists of:
@@ -503,10 +509,9 @@ This is a Heirloom extension and currently unsupported.
 .It Ic \&br
 Break the output line.
 .It Ic \&break
-Break out of a
+Break out of the innermost
 .Ic \&while
 loop.
-Currently unsupported.
 .It Ic \&breakchar Ar char ...
 Optional line break characters.
 This is a Heirloom extension and currently ignored.
@@ -2279,7 +2284,7 @@ code.
 .Pp
 The special semantics of the
 .Cm nS
-number register is an idiosyncracy of
+number register is an idiosyncrasy of
 .Ox
 manuals and not supported by other
 .Xr mdoc 7
diff --git a/roff.c b/roff.c
index 2b07352b90a3..f26d9f01f226 100644
--- a/roff.c
+++ b/roff.c
@@ -1,4 +1,4 @@
-/*	$Id: roff.c,v 1.363 2019/02/06 21:11:43 schwarze Exp $ */
+/*	$Id: roff.c,v 1.366 2019/07/01 22:56:24 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2015, 2017-2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -133,15 +133,18 @@ struct	roff {
 	char		 escape; /* escape character */
 };
 
+/*
+ * A macro definition, condition, or ignored block.
+ */
 struct	roffnode {
 	enum roff_tok	 tok; /* type of node */
 	struct roffnode	*parent; /* up one in stack */
 	int		 line; /* parse line */
 	int		 col; /* parse col */
 	char		*name; /* node name, e.g. macro name */
-	char		*end; /* end-rules: custom token */
-	int		 endspan; /* end-rules: next-line or infty */
-	int		 rule; /* current evaluation rule */
+	char		*end; /* custom end macro of the block */
+	int		 endspan; /* scope to: 1=eol 2=next line -1=\} */
+	int		 rule; /* content is: 1=evaluated 0=skipped */
 };
 
 #define	ROFF_ARGS	 struct roff *r, /* parse ctx */ \
@@ -181,6 +184,7 @@ static	int		 roff_als(ROFF_ARGS);
 static	int		 roff_block(ROFF_ARGS);
 static	int		 roff_block_text(ROFF_ARGS);
 static	int		 roff_block_sub(ROFF_ARGS);
+static	int		 roff_break(ROFF_ARGS);
 static	int		 roff_cblock(ROFF_ARGS);
 static	int		 roff_cc(ROFF_ARGS);
 static	int		 roff_ccond(struct roff *, int, int);
@@ -400,7 +404,7 @@ static	struct roffmac	 roffs[TOKEN_NONE] = {
 	{ roff_unsupp, NULL, NULL, 0 },  /* boxa */
 	{ roff_line_ignore, NULL, NULL, 0 },  /* bp */
 	{ roff_unsupp, NULL, NULL, 0 },  /* BP */
-	{ roff_unsupp, NULL, NULL, 0 },  /* break */
+	{ roff_break, NULL, NULL, 0 },  /* break */
 	{ roff_line_ignore, NULL, NULL, 0 },  /* breakchar */
 	{ roff_line_ignore, NULL, NULL, 0 },  /* brnl */
 	{ roff_noarg, NULL, NULL, 0 },  /* brp */
@@ -685,7 +689,7 @@ roffhash_find(struct ohash *htab, const char *name, size_t sz)
 
 /*
  * Pop the current node off of the stack of roff instructions currently
- * pending.
+ * pending.  Return 1 if it is a loop or 0 otherwise.
  */
 static int
 roffnode_pop(struct roff *r)
@@ -779,7 +783,7 @@ roff_reset(struct roff *r)
 void
 roff_free(struct roff *r)
 {
-	int	 	 i;
+	int		 i;
 
 	roff_free1(r);
 	for (i = 0; i < r->mstacksz; i++)
@@ -1586,7 +1590,7 @@ char *
 roff_getarg(struct roff *r, char **cpp, int ln, int *pos)
 {
 	struct buf	 buf;
-	char	 	*cp, *start;
+	char		*cp, *start;
 	int		 newesc, pairs, quoted, white;
 
 	/* Quoting can only start with a new word. */
@@ -2002,6 +2006,10 @@ roff_cblock(ROFF_ARGS)
 
 }
 
+/*
+ * Pop all nodes ending at the end of the current input line.
+ * Return the number of loops ended.
+ */
 static int
 roffnode_cleanscope(struct roff *r)
 {
@@ -2016,6 +2024,11 @@ roffnode_cleanscope(struct roff *r)
 	return inloop;
 }
 
+/*
+ * Handle the closing \} of a conditional block.
+ * Apart from generating warnings, this only pops nodes.
+ * Return the number of loops ended.
+ */
 static int
 roff_ccond(struct roff *r, int ln, int ppos)
 {
@@ -2235,6 +2248,7 @@ roff_block_text(ROFF_ARGS)
 static int
 roff_cond_sub(ROFF_ARGS)
 {
+	struct roffnode	*bl;
 	char		*ep;
 	int		 endloop, irc, rr;
 	enum roff_tok	 t;
@@ -2282,9 +2296,21 @@ roff_cond_sub(ROFF_ARGS)
 	 */
 
 	t = roff_parse(r, buf->buf, &pos, ln, ppos);
-	irc |= t != TOKEN_NONE && (rr || roffs[t].flags & ROFFMAC_STRUCT) ?
-	    (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs) :
-	    rr ? ROFF_CONT : ROFF_IGN;
+	if (t == ROFF_break) {
+		if (irc & ROFF_LOOPMASK)
+			irc = ROFF_IGN | ROFF_LOOPEXIT;
+		else if (rr) {
+			for (bl = r->last; bl != NULL; bl = bl->parent) {
+				bl->rule = 0;
+				if (bl->tok == ROFF_while)
+					break;
+			}
+		}
+	} else if (t != TOKEN_NONE &&
+	    (rr || roffs[t].flags & ROFFMAC_STRUCT))
+		irc |= (*roffs[t].proc)(r, t, buf, ln, ppos, pos, offs);
+	else
+		irc |= rr ? ROFF_CONT : ROFF_IGN;
 	return irc;
 }
 
@@ -3482,6 +3508,17 @@ roff_als(ROFF_ARGS)
 	return ROFF_IGN;
 }
 
+/*
+ * The .break request only makes sense inside conditionals,
+ * and that case is already handled in roff_cond_sub().
+ */
+static int
+roff_break(ROFF_ARGS)
+{
+	mandoc_msg(MANDOCERR_BLK_NOTOPEN, ln, pos, "break");
+	return ROFF_IGN;
+}
+
 static int
 roff_cc(ROFF_ARGS)
 {
@@ -3804,6 +3841,11 @@ roff_userdef(ROFF_ARGS)
 	char		 *arg, *ap, *dst, *src;
 	size_t		  sz;
 
+	/* If the macro is empty, ignore it altogether. */
+
+	if (*r->current_string == '\0')
+		return ROFF_IGN;
+
 	/* Initialize a new macro stack context. */
 
 	if (++r->mstackpos == r->mstacksz) {
@@ -3851,7 +3893,7 @@ roff_userdef(ROFF_ARGS)
 	buf->sz = strlen(buf->buf) + 1;
 	*offs = 0;
 
-	return buf->sz > 1 && buf->buf[buf->sz - 2] == '\n' ?
+	return buf->buf[buf->sz - 2] == '\n' ?
 	    ROFF_REPARSE | ROFF_USERCALL : ROFF_IGN | ROFF_APPEND;
 }
 
diff --git a/roff_html.c b/roff_html.c
index 02b8beea3bdc..e525aa2ede68 100644
--- a/roff_html.c
+++ b/roff_html.c
@@ -1,4 +1,4 @@
-/*	$Id: roff_html.c,v 1.19 2019/01/07 07:26:29 schwarze Exp $ */
+/*	$Id: roff_html.c,v 1.20 2019/04/30 15:53:01 schwarze Exp $ */
 /*
  * Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2014, 2017, 2018, 2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -94,7 +94,7 @@ roff_html_pre_ft(ROFF_HTML_ARGS)
 	const char	*cp;
 
 	cp = n->child->string;
-	print_metaf(h, mandoc_font(cp, (int)strlen(cp)));
+	html_setfont(h, mandoc_font(cp, (int)strlen(cp)));
 }
 
 static void
diff --git a/tag.c b/tag.c
index 473ea7b6f491..d5e7f89c1a50 100644
--- a/tag.c
+++ b/tag.c
@@ -1,6 +1,6 @@
-/*	$Id: tag.c,v 1.21 2018/11/22 11:30:23 schwarze Exp $ */
+/*	$Id: tag.c,v 1.24 2019/07/22 03:21:50 schwarze Exp $ */
 /*
- * Copyright (c) 2015, 2016, 2018 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2015, 2016, 2018, 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
@@ -18,9 +18,7 @@
 
 #include <sys/types.h>
 
-#if HAVE_ERR
-#include <err.h>
-#endif
+#include <errno.h>
 #include <limits.h>
 #include <signal.h>
 #include <stddef.h>
@@ -32,6 +30,7 @@
 
 #include "mandoc_aux.h"
 #include "mandoc_ohash.h"
+#include "mandoc.h"
 #include "tag.h"
 
 struct tag_entry {
@@ -83,8 +82,10 @@ tag_init(void)
 
 	/* Save the original standard output for use by the pager. */
 
-	if ((tag_files.ofd = dup(STDOUT_FILENO)) == -1)
+	if ((tag_files.ofd = dup(STDOUT_FILENO)) == -1) {
+		mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno));
 		goto fail;
+	}
 
 	/* Create both temporary output files. */
 
@@ -92,12 +93,20 @@ tag_init(void)
 	    sizeof(tag_files.ofn));
 	(void)strlcpy(tag_files.tfn, "/tmp/man.XXXXXXXXXX",
 	    sizeof(tag_files.tfn));
-	if ((ofd = mkstemp(tag_files.ofn)) == -1)
+	if ((ofd = mkstemp(tag_files.ofn)) == -1) {
+		mandoc_msg(MANDOCERR_MKSTEMP, 0, 0,
+		    "%s: %s", tag_files.ofn, strerror(errno));
 		goto fail;
-	if ((tag_files.tfd = mkstemp(tag_files.tfn)) == -1)
+	}
+	if ((tag_files.tfd = mkstemp(tag_files.tfn)) == -1) {
+		mandoc_msg(MANDOCERR_MKSTEMP, 0, 0,
+		    "%s: %s", tag_files.tfn, strerror(errno));
 		goto fail;
-	if (dup2(ofd, STDOUT_FILENO) == -1)
+	}
+	if (dup2(ofd, STDOUT_FILENO) == -1) {
+		mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno));
 		goto fail;
+	}
 	close(ofd);
 
 	/*
@@ -142,11 +151,11 @@ tag_put(const char *s, int prio, size_t line)
 		s += 2;
 
 	/*
-	 * Skip whitespace and whatever follows it,
+	 * Skip whitespace and escapes and whatever follows,
 	 * and if there is any, downgrade the priority.
 	 */
 
-	len = strcspn(s, " \t");
+	len = strcspn(s, " \t\\");
 	if (len == 0)
 		return;
 
@@ -216,21 +225,27 @@ tag_write(void)
 	struct tag_entry	*entry;
 	size_t			 i;
 	unsigned int		 slot;
+	int			 empty;
 
 	if (tag_files.tfd <= 0)
 		return;
 	if (tag_files.tagname != NULL && ohash_find(&tag_data,
             ohash_qlookup(&tag_data, tag_files.tagname)) == NULL) {
-		warnx("%s: no such tag", tag_files.tagname);
+		mandoc_msg(MANDOCERR_TAG, 0, 0, "%s", tag_files.tagname);
 		tag_files.tagname = NULL;
 	}
-	stream = fdopen(tag_files.tfd, "w");
+	if ((stream = fdopen(tag_files.tfd, "w")) == NULL)
+		mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
+	empty = 1;
 	entry = ohash_first(&tag_data, &slot);
 	while (entry != NULL) {
-		if (stream != NULL && entry->prio >= 0)
-			for (i = 0; i < entry->nlines; i++)
+		if (stream != NULL && entry->prio >= 0) {
+			for (i = 0; i < entry->nlines; i++) {
 				fprintf(stream, "%s %s %zu\n",
 				    entry->s, tag_files.ofn, entry->lines[i]);
+				empty = 0;
+			}
+		}
 		free(entry->lines);
 		free(entry);
 		entry = ohash_next(&tag_data, &slot);
@@ -241,6 +256,10 @@ tag_write(void)
 	else
 		close(tag_files.tfd);
 	tag_files.tfd = -1;
+	if (empty) {
+		unlink(tag_files.tfn);
+		*tag_files.tfn = '\0';
+	}
 }
 
 void
diff --git a/tbl_html.c b/tbl_html.c
index 4ab6bed10bd0..e137757dc16c 100644
--- a/tbl_html.c
+++ b/tbl_html.c
@@ -1,4 +1,4 @@
-/*	$Id: tbl_html.c,v 1.32 2019/01/06 04:55:09 schwarze Exp $ */
+/*	$Id: tbl_html.c,v 1.33 2019/03/17 18:21:45 schwarze Exp $ */
 /*
  * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2014, 2015, 2017, 2018 Ingo Schwarze <schwarze@openbsd.org>
@@ -25,6 +25,7 @@
 #include <string.h>
 
 #include "mandoc.h"
+#include "roff.h"
 #include "tbl.h"
 #include "out.h"
 #include "html.h"
diff --git a/tbl_term.c b/tbl_term.c
index a197f8ef743a..de88d61c15e1 100644
--- a/tbl_term.c
+++ b/tbl_term.c
@@ -1,4 +1,4 @@
-/*	$Id: tbl_term.c,v 1.68 2019/02/09 21:02:47 schwarze Exp $ */
+/*	$Id: tbl_term.c,v 1.72 2019/07/01 22:56:24 schwarze Exp $ */
 /*
  * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2011-2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -46,7 +46,8 @@ static	void	tbl_fill_border(struct termp *, int, size_t);
 static	void	tbl_fill_char(struct termp *, char, size_t);
 static	void	tbl_fill_string(struct termp *, const char *, size_t);
 static	void	tbl_hrule(struct termp *, const struct tbl_span *,
-			const struct tbl_span *, int);
+			const struct tbl_span *, const struct tbl_span *,
+			int);
 static	void	tbl_literal(struct termp *, const struct tbl_dat *,
 			const struct roffcol *);
 static	void	tbl_number(struct termp *, const struct tbl_opts *,
@@ -163,7 +164,7 @@ term_tbl(struct termp *tp, const struct tbl_span *sp)
 	const struct tbl_cell	*cp, *cpn, *cpp, *cps;
 	const struct tbl_dat	*dp;
 	static size_t		 offset;
-	size_t		 	 save_offset;
+	size_t			 save_offset;
 	size_t			 coloff, tsz;
 	int			 hspans, ic, more;
 	int			 dvert, fc, horiz, lhori, rhori, uvert;
@@ -222,9 +223,9 @@ term_tbl(struct termp *tp, const struct tbl_span *sp)
 
 		if (tp->enc == TERMENC_ASCII &&
 		    sp->opts->opts & TBL_OPT_DBOX)
-			tbl_hrule(tp, NULL, sp, TBL_OPT_DBOX);
+			tbl_hrule(tp, NULL, sp, sp, TBL_OPT_DBOX);
 		if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX))
-			tbl_hrule(tp, NULL, sp, TBL_OPT_BOX);
+			tbl_hrule(tp, NULL, sp, sp, TBL_OPT_BOX);
 	}
 
 	/* Set up the columns. */
@@ -342,7 +343,7 @@ term_tbl(struct termp *tp, const struct tbl_span *sp)
 
 		more = 0;
 		if (horiz)
-			tbl_hrule(tp, sp->prev, sp, 0);
+			tbl_hrule(tp, sp->prev, sp, sp->next, 0);
 		else {
 			cp = sp->layout->first;
 			cpn = sp->next == NULL ? NULL :
@@ -557,12 +558,12 @@ term_tbl(struct termp *tp, const struct tbl_span *sp)
 	tp->tcol->rmargin = tp->maxrmargin;
 	if (sp->next == NULL) {
 		if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) {
-			tbl_hrule(tp, sp, NULL, TBL_OPT_BOX);
+			tbl_hrule(tp, sp, sp, NULL, TBL_OPT_BOX);
 			tp->skipvsp = 1;
 		}
 		if (tp->enc == TERMENC_ASCII &&
 		    sp->opts->opts & TBL_OPT_DBOX) {
-			tbl_hrule(tp, sp, NULL, TBL_OPT_DBOX);
+			tbl_hrule(tp, sp, sp, NULL, TBL_OPT_DBOX);
 			tp->skipvsp = 2;
 		}
 		assert(tp->tbl.cols);
@@ -571,7 +572,7 @@ term_tbl(struct termp *tp, const struct tbl_span *sp)
 	} else if (horiz == 0 && sp->opts->opts & TBL_OPT_ALLBOX &&
 	    (sp->next == NULL || sp->next->pos == TBL_SPAN_DATA ||
 	     sp->next->next != NULL))
-		tbl_hrule(tp, sp, sp->next, TBL_OPT_ALLBOX);
+		tbl_hrule(tp, sp, sp, sp->next, TBL_OPT_ALLBOX);
 
 	tp->tcol->offset = save_offset;
 	tp->flags &= ~TERMP_NONOSPACE;
@@ -579,9 +580,10 @@ term_tbl(struct termp *tp, const struct tbl_span *sp)
 
 static void
 tbl_hrule(struct termp *tp, const struct tbl_span *spp,
-    const struct tbl_span *spn, int flags)
+    const struct tbl_span *sp, const struct tbl_span *spn, int flags)
 {
 	const struct tbl_cell	*cpp;    /* Layout cell above this line. */
+	const struct tbl_cell	*cp;     /* Layout cell in this line. */
 	const struct tbl_cell	*cpn;    /* Layout cell below this line. */
 	const struct tbl_dat	*dpn;	 /* Data cell below this line. */
 	const struct roffcol	*col;    /* Contains width and spacing. */
@@ -592,6 +594,7 @@ tbl_hrule(struct termp *tp, const struct tbl_span *spp,
 	int			 uw, dw; /* Vertical line widths. */
 
 	cpp = spp == NULL ? NULL : spp->layout->first;
+	cp  = sp  == NULL ? NULL : sp->layout->first;
 	cpn = spn == NULL ? NULL : spn->layout->first;
 	dpn = NULL;
 	if (spn != NULL) {
@@ -600,11 +603,11 @@ tbl_hrule(struct termp *tp, const struct tbl_span *spp,
 		else if (spn->next != NULL)
 			dpn = spn->next->first;
 	}
-	opts = spn == NULL ? spp->opts->opts : spn->opts->opts;
+	opts = sp->opts->opts;
 	bw = opts & TBL_OPT_DBOX ? (tp->enc == TERMENC_UTF8 ? 2 : 1) :
 	    opts & (TBL_OPT_BOX | TBL_OPT_ALLBOX) ? 1 : 0;
 	hw = flags == TBL_OPT_DBOX || flags == TBL_OPT_BOX ? bw :
-	    spn->pos == TBL_SPAN_DHORIZ ? 2 : 1;
+	    sp->pos == TBL_SPAN_DHORIZ ? 2 : 1;
 
 	/* Print the left end of the line. */
 
@@ -619,14 +622,19 @@ tbl_hrule(struct termp *tp, const struct tbl_span *spp,
 		    (spp == NULL || cpn == NULL ||
 		     cpn->pos != TBL_CELL_DOWN ? BRIGHT * hw : 0), 1);
 
+	col = tp->tbl.cols;
 	for (;;) {
-		col = tp->tbl.cols + (cpn == NULL ? cpp->col : cpn->col);
+		if (cp == NULL)
+			col++;
+		else
+			col = tp->tbl.cols + cp->col;
 
 		/* Print the horizontal line inside this column. */
 
 		lw = cpp == NULL || cpn == NULL ||
 		    (cpn->pos != TBL_CELL_DOWN &&
-		     (dpn == NULL || strcmp(dpn->string, "\\^") != 0))
+		     (dpn == NULL || dpn->string == NULL ||
+		      strcmp(dpn->string, "\\^") != 0))
 		    ? hw : 0;
 		tbl_direct_border(tp, BHORIZ * lw,
 		    col->width + col->spacing / 2);
@@ -645,7 +653,10 @@ tbl_hrule(struct termp *tp, const struct tbl_span *spp,
 					uw = 1;
 			}
 			cpp = cpp->next;
-		}
+		} else if (spp != NULL && opts & TBL_OPT_ALLBOX)
+			uw = 1;
+		if (cp != NULL)
+			cp = cp->next;
 		if (cpn != NULL) {
 			if (flags != TBL_OPT_DBOX) {
 				dw = cpn->vert;
@@ -655,8 +666,9 @@ tbl_hrule(struct termp *tp, const struct tbl_span *spp,
 			cpn = cpn->next;
 			while (dpn != NULL && dpn->layout != cpn)
 				dpn = dpn->next;
-		}
-		if (cpp == NULL && cpn == NULL)
+		} else if (spn != NULL && opts & TBL_OPT_ALLBOX)
+			dw = 1;
+		if (col + 1 == tp->tbl.cols + sp->opts->cols)
 			break;
 
 		/* Vertical lines do not cross spanned cells. */
@@ -670,7 +682,8 @@ tbl_hrule(struct termp *tp, const struct tbl_span *spp,
 
 		rw = cpp == NULL || cpn == NULL ||
 		    (cpn->pos != TBL_CELL_DOWN &&
-		     (dpn == NULL || strcmp(dpn->string, "\\^") != 0))
+		     (dpn == NULL || dpn->string == NULL ||
+		      strcmp(dpn->string, "\\^") != 0))
 		    ? hw : 0;
 
 		/* The line crossing at the end of this column. */
diff --git a/term.c b/term.c
index 8e9762282582..3b9277aaabbc 100644
--- a/term.c
+++ b/term.c
@@ -1,4 +1,4 @@
-/*	$Id: term.c,v 1.280 2019/01/15 12:16:18 schwarze Exp $ */
+/*	$Id: term.c,v 1.281 2019/06/03 20:23:41 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2019 Ingo Schwarze <schwarze@openbsd.org>
@@ -281,6 +281,8 @@ term_fill(struct termp *p, size_t *nbr, size_t *vbr, size_t vtarget)
 			case ASCII_BREAK:
 				vn = vis;
 				break;
+			default:
+				abort();
 			}
 			/* Can break at the end of a word. */
 			if (breakline || vn > vtarget)