Flip on equation printing for -T[x]html.

6 files changed, 101 insertions, 14 deletions

diff --git a/Makefile b/Makefile
index 03d00fdd..eceee4fd 100644
--- a/Makefile
+++ b/Makefile
@@ -50,6 +50,7 @@ SRCS		 = Makefile \
 		   config.h.pre \
 		   eqn.7 \
 		   eqn.c \
+		   eqn_html.c \
 		   eqn_term.c \
 		   example.style.css \
 		   external.png \
@@ -192,11 +193,13 @@ $(LIBMDOC_OBJS) $(LIBMDOC_LNS): libmdoc.h
 $(LIBROFF_OBJS) $(LIBROFF_LNS): libroff.h
 $(LIBMANDOC_OBJS) $(LIBMANDOC_LNS): mandoc.h mdoc.h man.h libmandoc.h config.h
 
-MANDOC_HTML_OBJS = html.o \
+MANDOC_HTML_OBJS = eqn_html.o \
+		   html.o \
 		   man_html.o \
 		   mdoc_html.o \
 		   tbl_html.o
-MANDOC_HTML_LNS	 = html.ln \
+MANDOC_HTML_LNS	 = eqn_html.ln \
+		   html.ln \
 		   man_html.ln \
 		   mdoc_html.ln \
 		   tbl_html.ln
diff --git a/eqn_html.c b/eqn_html.c
new file mode 100644
index 00000000..eda5652a
--- /dev/null
+++ b/eqn_html.c
@@ -0,0 +1,89 @@
+/*	$Id$ */
+/*
+ * Copyright (c) 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
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "out.h"
+#include "html.h"
+
+static void	eqn_box(struct html *, const struct eqn_box *);
+static void	eqn_box_post(struct html *, const struct eqn_box *);
+static void	eqn_box_pre(struct html *, const struct eqn_box *);
+static void	eqn_text(struct html *, const struct eqn_box *);
+
+void
+print_eqn(struct html *p, const struct eqn *ep)
+{
+	struct htmlpair	 tag;
+	struct tag	*t;
+
+	PAIR_CLASS_INIT(&tag, "eqn");
+	t = print_otag(p, TAG_SPAN, 1, &tag);
+
+	p->flags |= HTML_NONOSPACE;
+	eqn_box(p, ep->root);
+	p->flags &= ~HTML_NONOSPACE;
+
+	print_tagq(p, t);
+}
+
+static void
+eqn_box(struct html *p, const struct eqn_box *bp)
+{
+
+	eqn_box_pre(p, bp);
+	eqn_text(p, bp);
+
+	if (bp->first)
+		eqn_box(p, bp->first);
+
+	eqn_box_post(p, bp);
+
+	if (bp->next)
+		eqn_box(p, bp->next);
+}
+
+static void
+eqn_box_pre(struct html *p, const struct eqn_box *bp)
+{
+
+	if (bp->left)
+		print_text(p, bp->left);
+}
+
+static void
+eqn_box_post(struct html *p, const struct eqn_box *bp)
+{
+
+	if (bp->right)
+		print_text(p, bp->right);
+}
+
+static void
+eqn_text(struct html *p, const struct eqn_box *bp)
+{
+
+	if (bp->text)
+		print_text(p, bp->text);
+}
diff --git a/eqn_term.c b/eqn_term.c
index 0b00979c..ee0a75fb 100644
--- a/eqn_term.c
+++ b/eqn_term.c
@@ -27,10 +27,10 @@
 #include "out.h"
 #include "term.h"
 
-static void	eqn_box(struct termp *p, const struct eqn_box *);
-static void	eqn_box_post(struct termp *p, const struct eqn_box *);
-static void	eqn_box_pre(struct termp *p, const struct eqn_box *);
-static void	eqn_text(struct termp *p, const struct eqn_box *);
+static void	eqn_box(struct termp *, const struct eqn_box *);
+static void	eqn_box_post(struct termp *, const struct eqn_box *);
+static void	eqn_box_pre(struct termp *, const struct eqn_box *);
+static void	eqn_text(struct termp *, const struct eqn_box *);
 
 void
 term_eqn(struct termp *p, const struct eqn *ep)
diff --git a/html.h b/html.h
index 49fdf877..4747388f 100644
--- a/html.h
+++ b/html.h
@@ -141,6 +141,7 @@ void		  print_stagq(struct html *, const struct tag *);
 void		  print_text(struct html *, const char *);
 void		  print_tblclose(struct html *);
 void		  print_tbl(struct html *, const struct tbl_span *);
+void		  print_eqn(struct html *, const struct eqn *);
 
 void		  bufcat_fmt(struct html *, const char *, ...);
 void		  bufcat(struct html *, const char *);
diff --git a/man_html.c b/man_html.c
index f89b1c7a..3f7e0573 100644
--- a/man_html.c
+++ b/man_html.c
@@ -201,7 +201,6 @@ print_man_node(MAN_ARGS)
 {
 	int		 child;
 	struct tag	*t;
-	struct htmlpair	 tag;
 
 	child = 1;
 	t = h->tags.head;
@@ -229,9 +228,7 @@ print_man_node(MAN_ARGS)
 		print_text(h, n->string);
 		return;
 	case (MAN_EQN):
-		PAIR_CLASS_INIT(&tag, "eqn");
-		/*print_otag(h, TAG_SPAN, 1, &tag);
-		print_text(h, n->eqn->data);*/
+		print_eqn(h, n->eqn);
 		break;
 	case (MAN_TBL):
 		/*
diff --git a/mdoc_html.c b/mdoc_html.c
index de167d54..0317a6ad 100644
--- a/mdoc_html.c
+++ b/mdoc_html.c
@@ -407,7 +407,6 @@ print_mdoc_node(MDOC_ARGS)
 {
 	int		 child;
 	struct tag	*t;
-	struct htmlpair	 tag;
 
 	child = 1;
 	t = h->tags.head;
@@ -434,9 +433,7 @@ print_mdoc_node(MDOC_ARGS)
 			h->flags |= HTML_NOSPACE;
 		return;
 	case (MDOC_EQN):
-		PAIR_CLASS_INIT(&tag, "eqn");
-		/*print_otag(h, TAG_SPAN, 1, &tag);
-		print_text(h, n->eqn->data);*/
+		print_eqn(h, n->eqn);
 		break;
 	case (MDOC_TBL):
 		/*