===================================================================
RCS file: /cvs/mandoc/man_html.c,v
retrieving revision 1.63
retrieving revision 1.75
diff -u -p -r1.63 -r1.75
--- mandoc/man_html.c	2011/01/12 10:43:22	1.63
+++ mandoc/man_html.c	2011/06/29 15:38:09	1.75
@@ -1,6 +1,6 @@
-/*	$Id: man_html.c,v 1.63 2011/01/12 10:43:22 kristaps Exp $ */
+/*	$Id: man_html.c,v 1.75 2011/06/29 15:38:09 kristaps Exp $ */
 /*
- * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -53,6 +53,8 @@ struct	htmlman {
 	int		(*post)(MAN_ARGS);
 };
 
+static	void		  print_bvspace(struct html *, 
+				const struct man_node *);
 static	void		  print_man(MAN_ARGS);
 static	void		  print_man_head(MAN_ARGS);
 static	void		  print_man_nodelist(MAN_ARGS);
@@ -67,7 +69,7 @@ static	int		  man_ign_pre(MAN_ARGS);
 static	int		  man_in_pre(MAN_ARGS);
 static	int		  man_literal_pre(MAN_ARGS);
 static	void		  man_root_post(MAN_ARGS);
-static	int		  man_root_pre(MAN_ARGS);
+static	void		  man_root_pre(MAN_ARGS);
 static	int		  man_B_pre(MAN_ARGS);
 static	int		  man_HP_pre(MAN_ARGS);
 static	int		  man_I_pre(MAN_ARGS);
@@ -100,7 +102,7 @@ static	const struct htmlman mans[MAN_MAX] = {
 	{ man_I_pre, NULL }, /* I */
 	{ man_alt_pre, NULL }, /* IR */
 	{ man_alt_pre, NULL }, /* RI */
-	{ NULL, NULL }, /* na */
+	{ man_ign_pre, NULL }, /* na */
 	{ man_br_pre, NULL }, /* sp */
 	{ man_literal_pre, NULL }, /* nf */
 	{ man_literal_pre, NULL }, /* fi */
@@ -114,7 +116,29 @@ static	const struct htmlman mans[MAN_MAX] = {
 	{ man_ign_pre, NULL }, /* ft */
 };
 
+/*
+ * Printing leading vertical space before a block.
+ * This is used for the paragraph macros.
+ * The rules are pretty simple, since there's very little nesting going
+ * on here.  Basically, if we're the first within another block (SS/SH),
+ * then don't emit vertical space.  If we are (RS), then do.  If not the
+ * first, print it.
+ */
+static void
+print_bvspace(struct html *h, const struct man_node *n)
+{
 
+	if (n->body && n->body->child)
+		if (MAN_TBL == n->body->child->type)
+			return;
+
+	if (MAN_ROOT == n->parent->type || MAN_RS != n->parent->tok)
+		if (NULL == n->prev)
+			return;
+
+	print_otag(h, TAG_P, 0, NULL);
+}
+
 void
 html_man(void *arg, const struct man *m)
 {
@@ -135,7 +159,6 @@ html_man(void *arg, const struct man *m)
 	printf("\n");
 }
 
-
 static void
 print_man(MAN_ARGS) 
 {
@@ -157,9 +180,7 @@ print_man_head(MAN_ARGS)
 {
 
 	print_gen_head(h);
-	bufinit(h);
-	buffmt(h, "%s(%s)", m->title, m->msec);
-
+	bufcat_fmt(h, "%s(%s)", m->title, m->msec);
 	print_otag(h, TAG_TITLE, 0, NULL);
 	print_text(h, h->buf);
 }
@@ -180,49 +201,73 @@ print_man_node(MAN_ARGS)
 {
 	int		 child;
 	struct tag	*t;
+	struct htmlpair	 tag;
 
 	child = 1;
 	t = h->tags.head;
 
-	bufinit(h);
-
-	/*
-	 * FIXME: embedded elements within next-line scopes (e.g., `br'
-	 * within an empty `B') will cause formatting to be forgotten
-	 * due to scope closing out.
-	 */
-
 	switch (n->type) {
 	case (MAN_ROOT):
-		child = man_root_pre(m, n, mh, h);
+		man_root_pre(m, n, mh, h);
 		break;
 	case (MAN_TEXT):
+		/*
+		 * If we have a blank line, output a vertical space.
+		 * If we have a space as the first character, break
+		 * before printing the line's data.
+		 */
 		if ('\0' == *n->string) {
 			print_otag(h, TAG_P, 0, NULL);
 			return;
-		}
-
-		if (' ' == *n->string && MAN_LINE & n->flags)
+		} else if (' ' == *n->string && MAN_LINE & n->flags)
 			print_otag(h, TAG_BR, 0, NULL);
 
 		print_text(h, n->string);
 
-		if (MANH_LITERAL & mh->fl)
+		/*
+		 * If we're in a literal context, make sure that words
+		 * togehter on the same line stay together.  This is a
+		 * POST-printing call, so we check the NEXT word.  Since
+		 * -man doesn't have nested macros, we don't need to be
+		 * more specific than this.
+		 */
+		if (MANH_LITERAL & mh->fl &&
+				(NULL == n->next ||
+				 n->next->line > n->line))
 			print_otag(h, TAG_BR, 0, NULL);
 		return;
+	case (MAN_EQN):
+		PAIR_CLASS_INIT(&tag, "eqn");
+		print_otag(h, TAG_SPAN, 1, &tag);
+		print_text(h, n->eqn->data);
+		break;
 	case (MAN_TBL):
+		/*
+		 * This will take care of initialising all of the table
+		 * state data for the first table, then tearing it down
+		 * for the last one.
+		 */
 		print_tbl(h, n->span);
-		break;
+		return;
 	default:
 		/* 
 		 * Close out scope of font prior to opening a macro
-		 * scope.  Assert that the metafont is on the top of the
-		 * stack (it's never nested).
+		 * scope.
 		 */
 		if (HTMLFONT_NONE != h->metac) {
 			h->metal = h->metac;
 			h->metac = HTMLFONT_NONE;
 		}
+
+		/*
+		 * Close out the current table, if it's open, and unset
+		 * the "meta" table state.  This will be reopened on the
+		 * next table element.
+		 */
+		if (h->tblt) {
+			print_tblclose(h);
+			t = h->tags.head;
+		}
 		if (mans[n->tok].pre)
 			child = (*mans[n->tok].pre)(m, n, mh, h);
 		break;
@@ -234,13 +279,11 @@ print_man_node(MAN_ARGS)
 	/* This will automatically close out any font scope. */
 	print_stagq(h, t);
 
-	bufinit(h);
-
 	switch (n->type) {
 	case (MAN_ROOT):
 		man_root_post(m, n, mh, h);
 		break;
-	case (MAN_TBL):
+	case (MAN_EQN):
 		break;
 	default:
 		if (mans[n->tok].post)
@@ -264,7 +307,7 @@ a2width(const struct man_node *n, struct roffsu *su)
 
 
 /* ARGSUSED */
-static int
+static void
 man_root_pre(MAN_ARGS)
 {
 	struct htmlpair	 tag[3];
@@ -318,7 +361,6 @@ man_root_pre(MAN_ARGS)
 
 	print_text(h, title);
 	print_tagq(h, t);
-	return(1);
 }
 
 
@@ -328,13 +370,7 @@ man_root_post(MAN_ARGS)
 {
 	struct htmlpair	 tag[3];
 	struct tag	*t, *tt;
-	char		 b[DATESIZ];
 
-	if (m->rawdate)
-		strlcpy(b, m->rawdate, DATESIZ);
-	else
-		time2a(m->date, b, DATESIZ);
-
 	PAIR_SUMMARY_INIT(&tag[0], "Document Footer");
 	PAIR_CLASS_INIT(&tag[1], "foot");
 	if (NULL == h->style) {
@@ -351,7 +387,7 @@ man_root_post(MAN_ARGS)
 	PAIR_CLASS_INIT(&tag[0], "foot-date");
 	print_otag(h, TAG_TD, 1, tag);
 
-	print_text(h, b);
+	print_text(h, m->date);
 	print_stagq(h, tt);
 
 	PAIR_CLASS_INIT(&tag[0], "foot-os");
@@ -378,11 +414,13 @@ man_br_pre(MAN_ARGS)
 	SCALE_VS_INIT(&su, 1);
 
 	if (MAN_sp == n->tok) {
-		if (n->child)
-			a2roffsu(n->child->string, &su, SCALE_VS);
+		if (NULL != (n = n->child))
+			if ( ! a2roffsu(n->string, &su, SCALE_VS))
+				SCALE_VS_INIT(&su, atoi(n->string));
 	} else
 		su.scale = 0;
 
+	bufinit(h);
 	bufcat_su(h, "height", &su);
 	PAIR_STYLE_INIT(&tag, h);
 	print_otag(h, TAG_DIV, 1, &tag);
@@ -500,8 +538,8 @@ man_PP_pre(MAN_ARGS)
 
 	if (MAN_HEAD == n->type)
 		return(0);
-	else if (MAN_BODY == n->type && n->prev)
-		print_otag(h, TAG_P, 0, NULL);
+	else if (MAN_BLOCK == n->type)
+		print_bvspace(h, n);
 
 	return(1);
 }
@@ -549,8 +587,9 @@ man_IP_pre(MAN_ARGS)
 	}
 
 	if (MAN_BLOCK == n->type) {
-		print_otag(h, TAG_P, 0, NULL);
+		print_bvspace(h, n);
 		print_otag(h, TAG_TABLE, 0, NULL);
+		bufinit(h);
 		bufcat_su(h, "width", &su);
 		PAIR_STYLE_INIT(&tag, h);
 		print_otag(h, TAG_COL, 1, &tag);
@@ -586,6 +625,8 @@ man_HP_pre(MAN_ARGS)
 	struct roffsu	 su;
 	const struct man_node *np;
 
+	bufinit(h);
+
 	np = MAN_BLOCK == n->type ? 
 		n->head->child : 
 		n->parent->head->child;
@@ -597,7 +638,7 @@ man_HP_pre(MAN_ARGS)
 		print_otag(h, TAG_TD, 0, NULL);
 		return(0);
 	} else if (MAN_BLOCK == n->type) {
-		print_otag(h, TAG_P, 0, NULL);
+		print_bvspace(h, n);
 		print_otag(h, TAG_TABLE, 0, NULL);
 		bufcat_su(h, "width", &su);
 		PAIR_STYLE_INIT(&tag, h);
@@ -647,7 +688,7 @@ man_literal_pre(MAN_ARGS)
 	} else
 		mh->fl &= ~MANH_LITERAL;
 
-	return(1);
+	return(0);
 }
 
 
@@ -686,6 +727,7 @@ man_RS_pre(MAN_ARGS)
 	if (n->head->child)
 		a2width(n->head->child, &su);
 
+	bufinit(h);
 	bufcat_su(h, "margin-left", &su);
 	PAIR_STYLE_INIT(&tag, h);
 	print_otag(h, TAG_DIV, 1, &tag);