--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lwcc/tree.h	Sat Sep 21 18:43:39 2013 -0600
@@ -0,0 +1,51 @@
+/*
+lwcc/tree.h
+
+Copyright © 2013 William Astle
+
+This file is part of LWTOOLS.
+
+LWTOOLS is free software: you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef tree_h_seen___
+#define tree_h_seen___
+
+#include <stdio.h>
+
+/* the various node types */
+#define NODE_NONE		0	// a node with no type
+#define NODE_PROGRAM	1	// the whole program
+#define NODE_NUMTYPES	2	// the number of node types
+
+typedef struct node_s node_t;
+
+struct node_s
+{
+	int type;				// node type
+	char *strval;			// any string value associated with the node
+	unsigned char ival[8];	// any 64 bit integer value associated with the node, signed or unsigned
+	node_t *children;		// pointer to list of child nodes
+	node_t *next_child;		// pointer to next child in the list
+	node_t *parent;			// pointer to parent node
+};
+
+extern node_t *node_create(int, ...);
+extern void node_destroy(node_t *);
+extern void node_addchild(node_t *, node_t *);
+extern void node_removechild(node_t *, node_t *);
+extern void node_display(node_t *, FILE *);
+extern void node_removechild_destroy(node_t *, node_t *);
+
+#endif // tree_h_seen___