[Boost-commit] svn:boost r52186 - trunk/boost/spirit/home/support/detail/lexer

Subject: [Boost-commit] svn:boost r52186 - trunk/boost/spirit/home/support/detail/lexer
From: jamin.hanson_at_[hidden]
Date: 2009-04-05 08:24:44

Author: ben_hanson
Date: 2009-04-05 08:24:43 EDT (Sun, 05 Apr 2009)
New Revision: 52186
URL: http://svn.boost.org/trac/boost/changeset/52186

Log:
New lexer guts struct: note detail namespace!
Added:
   trunk/boost/spirit/home/support/detail/lexer/internals.hpp   (contents, props changed)

Added: trunk/boost/spirit/home/support/detail/lexer/internals.hpp
==============================================================================
--- (empty file)
+++ trunk/boost/spirit/home/support/detail/lexer/internals.hpp	2009-04-05 08:24:43 EDT (Sun, 05 Apr 2009)
@@ -0,0 +1,60 @@
+// internals.hpp
+// Copyright (c) 2009 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 BOOST_LEXER_INTERNALS_HPP
+#define BOOST_LEXER_INTERNALS_HPP
+
+#include "containers/ptr_vector.hpp"
+
+namespace boost
+{
+namespace lexer
+{
+namespace detail
+{
+struct internals
+{
+    typedef std::vector<std::size_t> size_t_vector;
+    typedef ptr_vector<size_t_vector> size_t_vector_vector;
+
+    size_t_vector_vector _lookup;
+    size_t_vector _dfa_alphabet;
+    size_t_vector_vector _dfa;
+    bool _seen_BOL_assertion;
+    bool _seen_EOL_assertion;
+
+    internals () :
+        _seen_BOL_assertion (false),
+        _seen_EOL_assertion (false)
+    {
+    }
+
+    void clear ()
+    {
+        _lookup.clear ();
+        _dfa_alphabet.clear ();
+        _dfa.clear ();
+        _seen_BOL_assertion = false;
+        _seen_EOL_assertion = false;
+    }
+
+    void swap (internals &internals_)
+    {
+        _lookup->swap (*internals_._lookup);
+        _dfa_alphabet.swap (internals_._dfa_alphabet);
+        _dfa->swap (*internals_._dfa);
+        std::swap (_seen_BOL_assertion, internals_._seen_BOL_assertion);
+        std::swap (_seen_EOL_assertion, internals_._seen_EOL_assertion);
+    }
+
+private:
+    internals (const internals &); // No copy construction.
+    internals &operator = (const internals &); // No assignment.
+};
+}
+}
+}
+
+#endif