--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pt-decl.h	Fri May 16 03:30:14 1997 +0000
@@ -0,0 +1,173 @@
+/*
+
+Copyright (C) 1996, 1997 John W. Eaton
+
+This file is part of Octave.
+
+Octave 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 2, or (at your option) any
+later version.
+
+Octave 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 Octave; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#if !defined (octave_tree_decl_h)
+#define octave_tree_decl_h 1
+
+#if defined (__GNUG__)
+#pragma interface
+#endif
+
+#include <SLList.h>
+
+class tree_expression;
+class tree_identifier;
+
+class tree_walker;
+
+#include <string>
+
+#include "pt-cmd.h"
+
+// List of expressions that make up a declaration statement.
+
+class
+tree_decl_elt
+{
+public:
+
+  typedef void (*eval_fcn) (tree_decl_elt &, bool);
+
+  tree_decl_elt (tree_identifier *i = 0, tree_expression *e = 0)
+    : id (i), expr (e) { }
+
+  ~tree_decl_elt (void);
+
+  void eval (void);
+
+  tree_identifier *ident (void) { return id; }
+
+  tree_expression *expression (void) { return expr; }
+
+  void accept (tree_walker& tw);
+
+private:
+
+  // An identifier to tag with the declared property.
+  tree_identifier *id;
+
+  // An initializer expression (may be zero);
+  tree_expression *expr;
+};
+
+class
+tree_decl_init_list : public SLList<tree_decl_elt *>
+{
+public:
+
+  tree_decl_init_list (void)
+    : SLList<tree_decl_elt *> () { }
+
+  tree_decl_init_list (tree_decl_elt *t)
+    : SLList<tree_decl_elt *> () { append (t); }
+
+  ~tree_decl_init_list (void)
+    {
+      while (! empty ())
+	{
+	  tree_decl_elt *t = remove_front ();
+	  delete t;
+	}
+    }
+
+  void eval (tree_decl_elt::eval_fcn, bool);
+
+  void accept (tree_walker& tw);
+};
+
+// Base class for declaration commands -- global, static, etc.
+
+class
+tree_decl_command : public tree_command
+{
+public:
+
+  tree_decl_command (const string& n, int l = -1, int c = -1)
+    : tree_command (l, c), cmd_name (n), initialized (false), init_list (0) { }
+
+  tree_decl_command (const string& n, tree_decl_init_list *t,
+		     int l = -1, int c = -1)
+    : tree_command (l, c), cmd_name (n), initialized (false), init_list (t) { }
+
+  ~tree_decl_command (void);
+
+  tree_decl_init_list *initializer_list (void) { return init_list; }
+
+  void accept (tree_walker& tw);
+
+  string name (void) { return cmd_name; }
+
+protected:
+
+  // The name of this command -- global, static, etc.
+  string cmd_name;
+
+  // TRUE if this command has been evaluated.
+  bool initialized;
+
+  // The list of variables or initializers in this declaration command.
+  tree_decl_init_list *init_list;
+};
+
+// Global.
+
+class
+tree_global_command : public tree_decl_command
+{
+public:
+
+  tree_global_command (int l = -1, int c = -1)
+    : tree_decl_command ("global", l, c) { }
+
+  tree_global_command (tree_decl_init_list *t, int l = -1, int c = -1)
+    : tree_decl_command ("global", t, l, c) { }
+
+  ~tree_global_command (void) { }
+
+  void eval (void);
+};
+
+// Static.
+
+class
+tree_static_command : public tree_decl_command
+{
+public:
+
+  tree_static_command (int l = -1, int c = -1)
+    : tree_decl_command ("static", l, c) { }
+
+  tree_static_command (tree_decl_init_list *t, int l = -1, int c = -1)
+    : tree_decl_command ("static", t, l, c) { }
+
+  ~tree_static_command (void) { }
+
+  void eval (void);
+};
+
+#endif
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; End: ***
+*/