===================================================================
RCS file: /cvs/mandoc/mdoc_validate.c,v
retrieving revision 1.373
retrieving revision 1.377
diff -u -p -r1.373 -r1.377
--- mandoc/mdoc_validate.c	2019/03/13 18:29:18	1.373
+++ mandoc/mdoc_validate.c	2020/01/19 18:02:00	1.377
@@ -1,7 +1,7 @@
-/*	$Id: mdoc_validate.c,v 1.373 2019/03/13 18:29:18 schwarze Exp $ */
+/*	$Id: mdoc_validate.c,v 1.377 2020/01/19 18:02:00 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2010-2019 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2010-2020 Ingo Schwarze <schwarze@openbsd.org>
  * Copyright (c) 2010 Joerg Sonnenberger <joerg@netbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
@@ -113,6 +113,7 @@ static	void	 post_sm(POST_ARGS);
 static	void	 post_st(POST_ARGS);
 static	void	 post_std(POST_ARGS);
 static	void	 post_sx(POST_ARGS);
+static	void	 post_tg(POST_ARGS);
 static	void	 post_useless(POST_ARGS);
 static	void	 post_xr(POST_ARGS);
 static	void	 post_xx(POST_ARGS);
@@ -238,6 +239,7 @@ static	const v_post mdoc_valids[MDOC_MAX - MDOC_Dd] = 
 	NULL,		/* %Q */
 	NULL,		/* %U */
 	NULL,		/* Ta */
+	post_tg,	/* Tg */
 };
 
 #define	RSORD_MAX 14 /* Number of `Rs' blocks. */
@@ -1090,6 +1092,41 @@ post_st(POST_ARGS)
 }
 
 static void
+post_tg(POST_ARGS)
+{
+	struct roff_node	*n, *nch;
+	size_t			len;
+
+	n = mdoc->last;
+	nch = n->child;
+	if (nch == NULL && n->next != NULL &&
+	    n->next->child->type == ROFFT_TEXT) {
+		mdoc->next = ROFF_NEXT_CHILD;
+		roff_word_alloc(mdoc, n->line, n->pos, n->next->child->string);
+		nch = mdoc->last;
+		nch->flags |= NODE_NOSRC;
+		mdoc->last = n;
+	}
+	if (nch == NULL || *nch->string == '\0') {
+		mandoc_msg(MANDOCERR_MACRO_EMPTY, n->line, n->pos, "Tg");
+		roff_node_delete(mdoc, n);
+		return;
+	}
+	len = strcspn(nch->string, " \t");
+	if (nch->string[len] != '\0')
+		mandoc_msg(MANDOCERR_TG_SPC, nch->line, nch->pos + len + 1,
+		    "Tg %s", nch->string);
+	if (nch->next != NULL) {
+		mandoc_msg(MANDOCERR_ARG_EXCESS, nch->next->line,
+		    nch->next->pos, "Tg ... %s", nch->next->string);
+		while (nch->next != NULL)
+			roff_node_delete(mdoc, nch->next);
+	}
+	if (nch->string[len] != '\0')
+		roff_node_delete(mdoc, n);
+}
+
+static void
 post_obsolete(POST_ARGS)
 {
 	struct roff_node *n;
@@ -1186,11 +1223,17 @@ post_fname(POST_ARGS)
 	size_t			 pos;
 
 	n = mdoc->last->child;
-	pos = strcspn(n->string, "()");
-	cp = n->string + pos;
-	if ( ! (cp[0] == '\0' || (cp[0] == '(' && cp[1] == '*')))
-		mandoc_msg(MANDOCERR_FN_PAREN, n->line, n->pos + pos,
-		    "%s", n->string);
+	cp = n->string;
+	if (*cp == '(') {
+		if (cp[strlen(cp + 1)] == ')')
+			return;
+		pos = 0;
+	} else {
+		pos = strcspn(cp, "()");
+		if (cp[pos] == '\0')
+			return;
+	}
+	mandoc_msg(MANDOCERR_FN_PAREN, n->line, n->pos + pos, "%s", cp);
 }
 
 static void
@@ -1748,7 +1791,7 @@ post_bl(POST_ARGS)
 	while (nchild != NULL) {
 		nnext = nchild->next;
 		if (nchild->tok == MDOC_It ||
-		    (nchild->tok == MDOC_Sm &&
+		    ((nchild->tok == MDOC_Sm || nchild->tok == MDOC_Tg) &&
 		     nnext != NULL && nnext->tok == MDOC_It)) {
 			nchild = nnext;
 			continue;
@@ -1903,8 +1946,7 @@ 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(NULL, NULL);
 
 	if (mdoc->meta.title == NULL) {
 		mandoc_msg(MANDOCERR_DT_NOTITLE, 0, 0, "EOF");
@@ -2502,7 +2544,6 @@ static void
 post_dd(POST_ARGS)
 {
 	struct roff_node *n;
-	char		 *datestr;
 
 	n = mdoc->last;
 	n->flags |= NODE_NOPRT;
@@ -2519,21 +2560,10 @@ 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);
-	}
+	if (mdoc->quick && n != NULL)
+		mdoc->meta.date = mandoc_strdup("");
+	else
+		mdoc->meta.date = mandoc_normdate(n->child, n);
 }
 
 static void