--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/anagram/agcore/tree.h	Sat Dec 22 17:52:45 2007 -0500
@@ -0,0 +1,53 @@
+/*
+ * AnaGram, A System for Syntax Directed Programming
+ * Copyright 1993-2002 Parsifal Software. All Rights Reserved.
+ * See the file COPYING for license and usage terms.
+ *
+ * tree.h
+ */
+
+#ifndef TREE_H
+#define TREE_H
+
+class CharSetExpression; // from csexp.h
+#include "register.h"
+
+
+struct parse_tree_map;
+
+class ParseTree : public KeyedObjectRegister<parse_tree_map> {
+public:
+  ParseTree() {}
+  ParseTree(unsigned x);
+  ParseTree(const ParseTree &t);
+  ParseTree(CharSetExpression *x);
+  static void reset();
+
+  class Map;
+  friend class Map;
+
+  class Map {
+  public:
+    parse_tree_map &operator [] (unsigned x);
+  };
+};
+
+#include "symbol.h"
+#include "token.h"
+
+struct parse_tree_map {
+  Token token_number;
+  Symbol token_name;
+  CharSetExpression *expression;
+  int char_set;
+
+  parse_tree_map();
+  parse_tree_map(CharSetExpression *x);
+  ~parse_tree_map() {}
+  int operator < (const parse_tree_map &t) const;
+};
+
+extern ParseTree::Map map_parse_tree;
+
+
+#endif /* TREE_H */