Fix typo in grammar.

Add lexertl.

inc/lexertl/containers/ptr_list.hpp

@@ -0,0 +1,69 @@
+// ptr_list.hpp
+// Copyright (c) 2005-2012 Ben Hanson (http://www.benhanson.net/)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file licence_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#ifndef LEXERTL_PTR_LIST_HPP
+#define LEXERTL_PTR_LIST_HPP
+
+#include <list>
+
+namespace lexertl
+{
+namespace detail
+{
+template<typename ptr_type>
+class ptr_list
+{
+public:
+    typedef std::list<ptr_type *> list;
+
+    ptr_list () :
+        _list ()
+    {
+    }
+
+    ~ptr_list ()
+    {
+        clear ();
+    }
+
+    list *operator -> ()
+    {
+        return &_list;
+    }
+
+    const list *operator -> () const
+    {
+        return &_list;
+    }
+
+    list &operator * ()
+    {
+        return _list;
+    }
+
+    const list &operator * () const
+    {
+        return _list;
+    }
+
+    void clear ()
+    {
+        while (!_list.empty ())
+        {
+            delete _list.front ();
+            _list.pop_front ();
+        }
+    }
+
+private:
+    list _list;
+
+    ptr_list (const ptr_list &); // No copy construction.
+    ptr_list &operator = (const ptr_list &); // No assignment.
+};
+}
+}
+
+#endif