===================================================================
RCS file: /cvs/mandoc/mdoc_validate.c,v
retrieving revision 1.116
retrieving revision 1.119
diff -u -p -r1.116 -r1.119
--- mandoc/mdoc_validate.c	2010/08/29 10:30:58	1.116
+++ mandoc/mdoc_validate.c	2010/09/27 23:03:44	1.119
@@ -1,4 +1,4 @@
-/*	$Id: mdoc_validate.c,v 1.116 2010/08/29 10:30:58 kristaps Exp $ */
+/*	$Id: mdoc_validate.c,v 1.119 2010/09/27 23:03:44 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -100,6 +100,7 @@ static	int	 pre_display(PRE_ARGS);
 static	int	 pre_dt(PRE_ARGS);
 static	int	 pre_it(PRE_ARGS);
 static	int	 pre_os(PRE_ARGS);
+static	int	 pre_pp(PRE_ARGS);
 static	int	 pre_rv(PRE_ARGS);
 static	int	 pre_sh(PRE_ARGS);
 static	int	 pre_ss(PRE_ARGS);
@@ -129,8 +130,8 @@ static	v_post	 posts_vt[] = { post_vt, NULL };
 static	v_post	 posts_wline[] = { bwarn_ge1, herr_eq0, NULL };
 static	v_post	 posts_wtext[] = { ewarn_ge1, NULL };
 static	v_pre	 pres_an[] = { pre_an, NULL };
-static	v_pre	 pres_bd[] = { pre_display, pre_bd, NULL };
-static	v_pre	 pres_bl[] = { pre_bl, NULL };
+static	v_pre	 pres_bd[] = { pre_display, pre_bd, pre_pp, NULL };
+static	v_pre	 pres_bl[] = { pre_bl, pre_pp, NULL };
 static	v_pre	 pres_d1[] = { pre_display, NULL };
 static	v_pre	 pres_dd[] = { pre_dd, NULL };
 static	v_pre	 pres_dt[] = { pre_dt, NULL };
@@ -139,6 +140,7 @@ static	v_pre	 pres_ex[] = { NULL, NULL };
 static	v_pre	 pres_fd[] = { NULL, NULL };
 static	v_pre	 pres_it[] = { pre_it, NULL };
 static	v_pre	 pres_os[] = { pre_os, NULL };
+static	v_pre	 pres_pp[] = { pre_pp, NULL };
 static	v_pre	 pres_rv[] = { pre_rv, NULL };
 static	v_pre	 pres_sh[] = { pre_sh, NULL };
 static	v_pre	 pres_ss[] = { pre_ss, NULL };
@@ -150,7 +152,7 @@ const	struct valids mdoc_valids[MDOC_MAX] = {
 	{ pres_os, NULL },			/* Os */
 	{ pres_sh, posts_sh },			/* Sh */ 
 	{ pres_ss, posts_ss },			/* Ss */ 
-	{ NULL, posts_notext },			/* Pp */ 
+	{ pres_pp, posts_notext },		/* Pp */ 
 	{ pres_d1, posts_wline },		/* D1 */
 	{ pres_d1, posts_wline },		/* Dl */
 	{ pres_bd, posts_bd_bk },		/* Bd */
@@ -263,7 +265,7 @@ const	struct valids mdoc_valids[MDOC_MAX] = {
 	{ NULL, NULL },				/* Dx */
 	{ NULL, posts_text },			/* %Q */
 	{ NULL, posts_notext },			/* br */
-	{ NULL, posts_sp },			/* sp */
+	{ pres_pp, posts_sp },			/* sp */
 	{ NULL, posts_text1 },			/* %U */
 	{ NULL, NULL },				/* Ta */
 };
@@ -1463,5 +1465,28 @@ post_sh_head(POST_ARGS)
 		break;
 	}
 
+	return(1);
+}
+
+
+static int
+pre_pp(PRE_ARGS)
+{
+
+	if (NULL == mdoc->last)
+		return(1);
+
+	/* Don't allow prior `Lp' or `Pp'. */
+
+	if (MDOC_Pp != mdoc->last->tok && MDOC_Lp != mdoc->last->tok)
+		return(1);
+
+	if (MDOC_Bl == n->tok && n->data.Bl->comp)
+		return(1);
+	if (MDOC_Bd == n->tok && n->data.Bd->comp)
+		return(1);
+
+	mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_IGNPAR);
+	mdoc_node_delete(mdoc, mdoc->last);
 	return(1);
 }