Add support for the MT and ME mailto macros, used for example in wg(8).

feedback and ok schwarze@

share/man/man7/man.7

@@ -1,4 +1,4 @@
-.\"	$OpenBSD: man.7,v 1.47 2017/05/07 21:44:33 schwarze Exp $
+.\"	$OpenBSD: man.7,v 1.48 2017/06/25 07:23:53 bentley Exp $
 .\"
 .\" Copyright (c) 2009, 2010, 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
 .\" Copyright (c) 2011-2015 Ingo Schwarze <schwarze@openbsd.org>
@@ -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: May 7 2017 $
+.Dd $Mdocdate: June 25 2017 $
 .Dt MAN 7
 .Os
 .Sh NAME
@@ -466,6 +466,20 @@ See also
 .Sx \&PP ,
 and
 .Sx \&TP .
+.Ss \&ME
+End a mailto block.
+This is a non-standard GNU extension, included only for compatibility.
+See
+.Sx \&MT .
+.Ss \&MT
+Begin a mailto block.
+This is a non-standard GNU extension, included only for compatibility.
+It has the following syntax:
+.Bd -literal -offset indent
+.Pf \. Sx \&MT Ar address
+link description to be shown
+.Pf \. Sx ME
+.Ed
 .Ss \&OP
 Optional command-line argument.
 This is a non-standard GNU extension, included only for compatibility.

usr.bin/mandoc/man_html.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: man_html.c,v 1.97 2017/06/24 14:38:27 schwarze Exp $ */
+/*	$OpenBSD: man_html.c,v 1.98 2017/06/25 07:23:53 bentley Exp $ */
 /*
  * Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2013, 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -104,6 +104,8 @@ static	const struct htmlman __mans[MAN_MAX - MAN_TH] = {
 	{ NULL, NULL }, /* EE */
 	{ man_UR_pre, NULL }, /* UR */
 	{ NULL, NULL }, /* UE */
+	{ man_UR_pre, NULL }, /* MT */
+	{ NULL, NULL }, /* ME */
 };
 static	const struct htmlman *const mans = __mans - MAN_TH;
 
@@ -228,6 +230,7 @@ print_man_node(MAN_ARGS)
 		case MAN_P:   /* reopen .nf in the body.	*/
 		case MAN_RS:
 		case MAN_UR:
+		case MAN_MT:
 			fillmode(h, MAN_fi);
 			break;
 		default:
@@ -642,11 +645,17 @@ man_RS_pre(MAN_ARGS)
 static int
 man_UR_pre(MAN_ARGS)
 {
+	char *cp;
 	n = n->child;
 	assert(n->type == ROFFT_HEAD);
 	if (n->child != NULL) {
 		assert(n->child->type == ROFFT_TEXT);
-		print_otag(h, TAG_A, "cTh", "Lk", n->child->string);
+		if (n->tok == MAN_MT) {
+			mandoc_asprintf(&cp, "mailto:%s", n->child->string);
+			print_otag(h, TAG_A, "cTh", "Mt", cp);
+			free(cp);
+		} else
+			print_otag(h, TAG_A, "cTh", "Lk", n->child->string);
 	}
 
 	assert(n->next->type == ROFFT_BODY);

usr.bin/mandoc/man_macro.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: man_macro.c,v 1.84 2017/06/17 16:47:29 schwarze Exp $ */
+/*	$OpenBSD: man_macro.c,v 1.85 2017/06/25 07:23:53 bentley Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2012-2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -73,6 +73,8 @@ const	struct man_macro __man_macros[MAN_MAX - MAN_TH] = {
 	{ in_line_eoln, MAN_BSCOPE }, /* EE */
 	{ blk_exp, MAN_BSCOPE }, /* UR */
 	{ blk_close, MAN_BSCOPE }, /* UE */
+	{ blk_exp, MAN_BSCOPE }, /* MT */
+	{ blk_close, MAN_BSCOPE }, /* ME */
 };
 const	struct man_macro *const man_macros = __man_macros - MAN_TH;
 
@@ -215,6 +217,9 @@ blk_close(MACRO_PROT_ARGS)
 	case MAN_UE:
 		ntok = MAN_UR;
 		break;
+	case MAN_ME:
+		ntok = MAN_MT;
+		break;
 	default:
 		abort();
 	}

usr.bin/mandoc/man_term.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: man_term.c,v 1.160 2017/06/17 13:05:47 schwarze Exp $ */
+/*	$OpenBSD: man_term.c,v 1.161 2017/06/25 07:23:53 bentley Exp $ */
 /*
  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -126,6 +126,8 @@ static	const struct termact __termacts[MAN_MAX - MAN_TH] = {
 	{ pre_literal, NULL, 0 }, /* EE */
 	{ pre_UR, post_UR, 0 }, /* UR */
 	{ NULL, NULL, 0 }, /* UE */
+	{ pre_UR, post_UR, 0 }, /* MT */
+	{ NULL, NULL, 0 }, /* ME */
 };
 static	const struct termact *termacts = __termacts - MAN_TH;
 

usr.bin/mandoc/man_validate.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: man_validate.c,v 1.102 2017/06/24 14:38:27 schwarze Exp $ */
+/*	$OpenBSD: man_validate.c,v 1.103 2017/06/25 07:23:53 bentley Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010, 2012-2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -87,6 +87,8 @@ static	const v_check __man_valids[MAN_MAX - MAN_TH] = {
 	NULL,       /* EE */
 	post_UR,    /* UR */
 	NULL,       /* UE */
+	post_UR,    /* MT */
+	NULL,       /* ME */
 };
 static	const v_check *man_valids = __man_valids - MAN_TH;
 
@@ -210,7 +212,7 @@ post_UR(CHKARGS)
 
 	if (n->type == ROFFT_HEAD && n->child == NULL)
 		mandoc_vmsg(MANDOCERR_UR_NOHEAD, man->parse,
-		    n->line, n->pos, "UR");
+		    n->line, n->pos, roff_name[n->tok]);
 	check_part(man, n);
 }
 

usr.bin/mandoc/mandoc.1

@@ -1,4 +1,4 @@
-.\"	$OpenBSD: mandoc.1,v 1.129 2017/06/24 21:08:28 schwarze Exp $
+.\"	$OpenBSD: mandoc.1,v 1.130 2017/06/25 07:23:53 bentley Exp $
 .\"
 .\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 .\" Copyright (c) 2012, 2014-2017 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: June 24 2017 $
+.Dd $Mdocdate: June 25 2017 $
 .Dt MANDOC 1
 .Os
 .Sh NAME
@@ -1278,6 +1278,7 @@ A
 .Ic \&Bl ,
 .Ic \&D1 ,
 .Ic \&Dl ,
+.Ic \&MT ,
 .Ic \&RS ,
 or
 .Ic \&UR
@@ -1413,6 +1414,8 @@ An empty pair of square brackets is shown.
 .It Sy "missing resource identifier, using \(dq\(dq"
 .Pq man
 The
+.Ic \&MT
+or
 .Ic \&UR
 macro is invoked without any argument.
 An empty pair of angle brackets is shown.
@@ -1765,7 +1768,7 @@ An
 .Xr mdoc 7
 block closing macro, a
 .Xr man 7
-.Ic \&RE
+.Ic \&ME , \&RE
 or
 .Ic \&UE
 macro, an
@@ -1799,7 +1802,7 @@ At the end of the document, an explicit
 block, a
 .Xr man 7
 next-line scope or
-.Ic \&RS
+.Ic \&MT , \&RS
 or
 .Ic \&UR
 block, an equation, table, or
@@ -1971,6 +1974,7 @@ A macro or request is invoked with too many arguments:
 .Bl -dash -offset 2n -width 2n -compact
 .It
 .Ic \&Fo ,
+.Ic \&MT ,
 .Ic \&PD ,
 .Ic \&RS ,
 .Ic \&UR ,

usr.bin/mandoc/roff.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: roff.c,v 1.188 2017/06/24 14:38:28 schwarze Exp $ */
+/*	$OpenBSD: roff.c,v 1.189 2017/06/25 07:23:53 bentley Exp $ */
 /*
  * Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -328,7 +328,7 @@ const char *__roff_name[MAN_MAX + 1] = {
 	"RE",		"RS",		"DT",		"UC",
 	"PD",		"AT",		"in",
 	"OP",		"EX",		"EE",		"UR",
-	"UE",		NULL
+	"UE",		"MT",		"ME",		NULL
 };
 const	char *const *roff_name = __roff_name;
 

usr.bin/mandoc/roff.h

@@ -1,4 +1,4 @@
-/*	$OpenBSD: roff.h,v 1.38 2017/06/24 14:38:28 schwarze Exp $	*/
+/*	$OpenBSD: roff.h,v 1.39 2017/06/25 07:23:53 bentley Exp $	*/
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2013, 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -467,6 +467,8 @@ enum	roff_tok {
 	MAN_EE,
 	MAN_UR,
 	MAN_UE,
+	MAN_MT,
+	MAN_ME,
 	MAN_MAX
 };