--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pt-jump.cc	Fri May 16 03:30:14 1997 +0000
@@ -0,0 +1,94 @@
+/*
+
+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 (__GNUG__)
+#pragma implementation
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+// Nonzero means we're breaking out of a loop or function body.
+int breaking = 0;
+
+// Nonzero means we're jumping to the end of a loop.
+int continuing = 0;
+
+// Nonzero means we're returning from a function.  Global because it
+// is also needed in tree-expr.cc.
+int returning = 0;
+
+#include "error.h"
+#include "pt-jump.h"
+#include "pt-walk.h"
+
+// Break.
+
+void
+tree_break_command::eval (void)
+{
+  if (! error_state)
+    breaking = 1;
+}
+
+void
+tree_break_command::accept (tree_walker& tw)
+{
+  tw.visit_break_command (*this);
+}
+
+// Continue.
+
+void
+tree_continue_command::eval (void)
+{
+  if (! error_state)
+    continuing = 1;
+}
+
+void
+tree_continue_command::accept (tree_walker& tw)
+{
+  tw.visit_continue_command (*this);
+}
+
+// Return.
+
+void
+tree_return_command::eval (void)
+{
+  if (! error_state)
+    returning = 1;
+}
+
+void
+tree_return_command::accept (tree_walker& tw)
+{
+  tw.visit_return_command (*this);
+}
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; End: ***
+*/