1 files changed, 93 insertions, 0 deletions
diff --git a/roff_html.c b/roff_html.c
new file mode 100644
index 000000000000..f023a9c439b0
--- /dev/null
+++ b/roff_html.c
@@ -0,0 +1,93 @@
+/*	$Id: roff_html.c,v 1.8 2017/06/08 12:54:58 schwarze Exp $ */
+/*
+ * Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2014, 2017 Ingo Schwarze <schwarze@openbsd.org>
+ *
+ * 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.
+ */
+#include <sys/types.h>
+
+#include <assert.h>
+#include <stddef.h>
+
+#include "roff.h"
+#include "out.h"
+#include "html.h"
+
+#define	ROFF_HTML_ARGS struct html *h, const struct roff_node *n
+
+typedef	void	(*roff_html_pre_fp)(ROFF_HTML_ARGS);
+
+static	void	  roff_html_pre_br(ROFF_HTML_ARGS);
+static	void	  roff_html_pre_ce(ROFF_HTML_ARGS);
+static	void	  roff_html_pre_sp(ROFF_HTML_ARGS);
+
+static	const roff_html_pre_fp roff_html_pre_acts[ROFF_MAX] = {
+	roff_html_pre_br,  /* br */
+	roff_html_pre_ce,  /* ce */
+	NULL,  /* ft */
+	NULL,  /* ll */
+	NULL,  /* mc */
+	roff_html_pre_sp,  /* sp */
+	NULL,  /* ta */
+	NULL,  /* ti */
+};
+
+
+void
+roff_html_pre(struct html *h, const struct roff_node *n)
+{
+	assert(n->tok < ROFF_MAX);
+	if (roff_html_pre_acts[n->tok] != NULL)
+		(*roff_html_pre_acts[n->tok])(h, n);
+}
+
+static void
+roff_html_pre_br(ROFF_HTML_ARGS)
+{
+	struct tag	*t;
+
+	t = print_otag(h, TAG_DIV, "");
+	print_text(h, "\\~");  /* So the div isn't empty. */
+	print_tagq(h, t);
+}
+
+static void
+roff_html_pre_ce(ROFF_HTML_ARGS)
+{
+	for (n = n->child->next; n != NULL; n = n->next) {
+		if (n->type == ROFFT_TEXT) {
+			if (n->flags & NODE_LINE)
+				roff_html_pre_br(h, n);
+			print_text(h, n->string);
+		} else
+			roff_html_pre(h, n);
+	}
+	roff_html_pre_br(h, n);
+}
+
+static void
+roff_html_pre_sp(ROFF_HTML_ARGS)
+{
+	struct roffsu	 su;
+
+	SCALE_VS_INIT(&su, 1);
+	if ((n = n->child) != NULL) {
+		if (a2roffsu(n->string, &su, SCALE_VS) == NULL)
+			su.scale = 1.0;
+		else if (su.scale < 0.0)
+			su.scale = 0.0;
+	}
+	print_otag(h, TAG_DIV, "suh", &su);
+	print_text(h, "\\~");  /* So the div isn't empty. */
+}