Imported existing code

libraries/include/boost/spirit/home/qi/skip.hpp

@@ -0,0 +1,34 @@
+/*=============================================================================
+    Copyright (c) 2001-2007 Joel de Guzman
+
+    Distributed under the Boost Software License, Version 1.0. (See accompanying 
+    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+==============================================================================*/
+#if !defined(BOOST_SPIRIT_SKIP_APR_16_2006_0625PM)
+#define BOOST_SPIRIT_SKIP_APR_16_2006_0625PM
+
+#include <boost/spirit/home/qi/meta_grammar.hpp>
+#include <boost/spirit/home/support/unused.hpp>
+
+namespace boost { namespace spirit { namespace qi
+{ 
+    ///////////////////////////////////////////////////////////////////////////
+    // Move the /first/ iterator to the first non-matching position
+    // given a skip-parser. The function is a no-op if unused_type is 
+    // passed as the skip-parser.
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename Iterator, typename T>
+    inline void skip(Iterator& first, Iterator const& last, T const& skipper)
+    {
+        while (first != last && 
+               T::director::parse(skipper, first, last, unused, unused, unused))
+            ;
+    }
+
+    template <typename Iterator>
+    inline void skip(Iterator&, Iterator const&, unused_type)
+    {
+    }
+}}}
+
+#endif