1 files changed, 98 insertions, 0 deletions
diff --git a/usr.bin/dc/bcode.h b/usr.bin/dc/bcode.h
new file mode 100644
index 0000000..9290cf1
--- /dev/null
+++ b/usr.bin/dc/bcode.h
@@ -0,0 +1,98 @@
+/*	$FreeBSD$						*/
+/*	$OpenBSD: bcode.h,v 1.5 2006/01/16 08:09:25 otto Exp $	*/
+
+/*
+ * Copyright (c) 2003, Otto Moerbeek <otto@drijf.net>
+ *
+ * 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 <openssl/bn.h>
+
+struct number {
+	BIGNUM	*number;
+	u_int	 scale;
+};
+
+enum stacktype {
+	BCODE_NONE,
+	BCODE_NUMBER,
+	BCODE_STRING
+};
+
+enum bcode_compare {
+	BCODE_EQUAL,
+	BCODE_NOT_EQUAL,
+	BCODE_LESS,
+	BCODE_NOT_LESS,
+	BCODE_GREATER,
+	BCODE_NOT_GREATER
+};
+
+struct array;
+
+struct value {
+	union {
+		struct number	*num;
+		char		*string;
+	} u;
+	struct array	*array;
+	enum stacktype	 type;
+};
+
+struct array {
+	struct value	*data;
+	size_t		 size;
+};
+
+struct stack {
+	struct value	*stack;
+	ssize_t		 size;
+	ssize_t		 sp;
+};
+
+struct source;
+
+struct vtable {
+	int	(*readchar)(struct source *);
+	void	(*unreadchar)(struct source *);
+	char	*(*readline)(struct source *);
+	void	(*free)(struct source *);
+};
+
+struct source {
+	union {
+			struct {
+				u_char	*buf;
+				size_t	 pos;
+			} string;
+			FILE	*stream;
+	} u;
+	struct vtable	*vtable;
+	int		 lastchar;
+};
+
+void			 init_bmachine(bool);
+void			 reset_bmachine(struct source *);
+void			 scale_number(BIGNUM *, int);
+void			 normalize(struct number *, u_int);
+void			 eval(void);
+void			 pn(const char *, const struct number *);
+void			 pbn(const char *, const BIGNUM *);
+void			 negate(struct number *);
+void			 split_number(const struct number *, BIGNUM *, BIGNUM *);
+void			 bmul_number(struct number *, struct number *,
+			    struct number *);
+
+extern BIGNUM		 zero;