===================================================================
RCS file: /cvs/mandoc/man_term.c,v
retrieving revision 1.171
retrieving revision 1.174
diff -u -p -r1.171 -r1.174
--- mandoc/man_term.c	2015/04/02 21:36:50	1.171
+++ mandoc/man_term.c	2015/04/04 11:44:43	1.174
@@ -1,4 +1,4 @@
-/*	$Id: man_term.c,v 1.171 2015/04/02 21:36:50 schwarze Exp $ */
+/*	$Id: man_term.c,v 1.174 2015/04/04 11:44:43 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2015 Ingo Schwarze <schwarze@openbsd.org>
@@ -48,8 +48,8 @@ struct	mtermp {
 
 #define	DECL_ARGS	  struct termp *p, \
 			  struct mtermp *mt, \
-			  struct man_node *n, \
-			  const struct man_meta *meta
+			  struct roff_node *n, \
+			  const struct roff_meta *meta
 
 struct	termact {
 	int		(*pre)(DECL_ARGS);
@@ -60,10 +60,12 @@ struct	termact {
 
 static	void		  print_man_nodelist(DECL_ARGS);
 static	void		  print_man_node(DECL_ARGS);
-static	void		  print_man_head(struct termp *, const void *);
-static	void		  print_man_foot(struct termp *, const void *);
+static	void		  print_man_head(struct termp *,
+				const struct roff_meta *);
+static	void		  print_man_foot(struct termp *,
+				const struct roff_meta *);
 static	void		  print_bvspace(struct termp *,
-				const struct man_node *, int);
+				const struct roff_node *, int);
 
 static	int		  pre_B(DECL_ARGS);
 static	int		  pre_HP(DECL_ARGS);
@@ -139,8 +141,8 @@ void
 terminal_man(void *arg, const struct man *man)
 {
 	struct termp		*p;
-	const struct man_meta	*meta;
-	struct man_node		*n;
+	const struct roff_meta	*meta;
+	struct roff_node	*n;
 	struct mtermp		 mt;
 
 	p = (struct termp *)arg;
@@ -191,7 +193,7 @@ terminal_man(void *arg, const struct man *man)
  * first, print it.
  */
 static void
-print_bvspace(struct termp *p, const struct man_node *n, int pardist)
+print_bvspace(struct termp *p, const struct roff_node *n, int pardist)
 {
 	int	 i;
 
@@ -280,7 +282,7 @@ static int
 pre_alternate(DECL_ARGS)
 {
 	enum termfont		 font[2];
-	struct man_node		*nn;
+	struct roff_node	*nn;
 	int			 savelit, i;
 
 	switch (n->tok) {
@@ -488,7 +490,7 @@ static int
 pre_HP(DECL_ARGS)
 {
 	struct roffsu		 su;
-	const struct man_node	*nn;
+	const struct roff_node	*nn;
 	int			 len;
 
 	switch (n->type) {
@@ -531,6 +533,17 @@ post_HP(DECL_ARGS)
 	switch (n->type) {
 	case ROFFT_BODY:
 		term_newln(p);
+
+		/*
+		 * Compatibility with a groff bug.
+		 * The .HP macro uses the undocumented .tag request
+		 * which causes a line break and cancels no-space
+		 * mode even if there isn't any output.
+		 */
+
+		if (n->child == NULL)
+			term_vspace(p);
+
 		p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
 		p->trailspace = 0;
 		p->offset = mt->offset;
@@ -562,7 +575,7 @@ static int
 pre_IP(DECL_ARGS)
 {
 	struct roffsu		 su;
-	const struct man_node	*nn;
+	const struct roff_node	*nn;
 	int			 len, savelit;
 
 	switch (n->type) {
@@ -643,7 +656,7 @@ static int
 pre_TP(DECL_ARGS)
 {
 	struct roffsu		 su;
-	struct man_node		*nn;
+	struct roff_node	*nn;
 	int			 len, savelit;
 
 	switch (n->type) {
@@ -1012,13 +1025,11 @@ print_man_nodelist(DECL_ARGS)
 }
 
 static void
-print_man_foot(struct termp *p, const void *arg)
+print_man_foot(struct termp *p, const struct roff_meta *meta)
 {
-	const struct man_meta	*meta;
 	char			*title;
 	size_t			 datelen, titlen;
 
-	meta = (const struct man_meta *)arg;
 	assert(meta->title);
 	assert(meta->msec);
 	assert(meta->date);
@@ -1030,8 +1041,8 @@ print_man_foot(struct termp *p, const void *arg)
 
 	/*
 	 * Temporary, undocumented option to imitate mdoc(7) output.
-	 * In the bottom right corner, use the source instead of
-	 * the title.
+	 * In the bottom right corner, use the operating system
+	 * instead of the title.
 	 */
 
 	if ( ! p->mdocstyle) {
@@ -1041,14 +1052,14 @@ print_man_foot(struct termp *p, const void *arg)
 		}
 		mandoc_asprintf(&title, "%s(%s)",
 		    meta->title, meta->msec);
-	} else if (meta->source) {
-		title = mandoc_strdup(meta->source);
+	} else if (meta->os) {
+		title = mandoc_strdup(meta->os);
 	} else {
 		title = mandoc_strdup("");
 	}
 	datelen = term_strlen(p, meta->date);
 
-	/* Bottom left corner: manual source. */
+	/* Bottom left corner: operating system. */
 
 	p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
 	p->trailspace = 1;
@@ -1056,8 +1067,8 @@ print_man_foot(struct termp *p, const void *arg)
 	p->rmargin = p->maxrmargin > datelen ?
 	    (p->maxrmargin + term_len(p, 1) - datelen) / 2 : 0;
 
-	if (meta->source)
-		term_word(p, meta->source);
+	if (meta->os)
+		term_word(p, meta->os);
 	term_flushln(p);
 
 	/* At the bottom in the middle: manual date. */
@@ -1084,14 +1095,12 @@ print_man_foot(struct termp *p, const void *arg)
 }
 
 static void
-print_man_head(struct termp *p, const void *arg)
+print_man_head(struct termp *p, const struct roff_meta *meta)
 {
-	const struct man_meta	*meta;
 	const char		*volume;
 	char			*title;
 	size_t			 vollen, titlen;
 
-	meta = (const struct man_meta *)arg;
 	assert(meta->title);
 	assert(meta->msec);