Translate blank input lines to .sp just like in mdoc(7),

and ignore .sp after .PP.  This fixes vertical spacing
for blank lines after .PP and for .sp after .PP.
OpenBSD rev. man.c 1.68 and man_term.c 1.86

2 files changed, 17 insertions, 5 deletions

diff --git a/man.c b/man.c
index caef76f5..749356dc 100644
--- a/man.c
+++ b/man.c
@@ -435,9 +435,10 @@ man_ptext(struct man *m, int line, char *buf, int offs)
 
 	if ('\0' == buf[i]) {
 		/* Allocate a blank entry. */
-		if ( ! man_word_alloc(m, line, offs, ""))
+		if ( ! man_elem_alloc(m, line, offs, MAN_sp))
 			return(0);
-		return(man_descope(m, line, offs));
+		m->next = MAN_NEXT_SIBLING;
+		return(1);
 	}
 
 	/* 
diff --git a/man_term.c b/man_term.c
index a00d26f2..873b250a 100644
--- a/man_term.c
+++ b/man_term.c
@@ -445,10 +445,21 @@ pre_sp(DECL_ARGS)
 	int		 neg;
 
 	if ((NULL == n->prev && n->parent)) {
-		if (MAN_SS == n->parent->tok)
-			return(0);
-		if (MAN_SH == n->parent->tok)
+		switch (n->parent->tok) {
+		case (MAN_SH):
+			/* FALLTHROUGH */
+		case (MAN_SS):
+			/* FALLTHROUGH */
+		case (MAN_PP):
+			/* FALLTHROUGH */
+		case (MAN_LP):
+			/* FALLTHROUGH */
+		case (MAN_P):
+			/* FALLTHROUGH */
 			return(0);
+		default:
+			break;
+		}
 	}
 
 	neg = 0;