core/matcher/assert_line_base.hpp

0001 ///////////////////////////////////////////////////////////////////////////////
0002 // assert_line_base.hpp
0003 //
0004 //  Copyright 2008 Eric Niebler. Distributed under the Boost
0005 //  Software License, Version 1.0. (See accompanying file
0006 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0007
0008 #ifndef BOOST_XPRESSIVE_DETAIL_CORE_MATCHER_DETAIL_ASSERT_LINE_BASE_HPP_EAN_10_04_2005
0009 #define BOOST_XPRESSIVE_DETAIL_CORE_MATCHER_DETAIL_ASSERT_LINE_BASE_HPP_EAN_10_04_2005
0010
0011 // MS compatible compilers support #pragma once
0012 #if defined(_MSC_VER)
0013 # pragma once
0014 #endif
0015
0016 #include <boost/xpressive/detail/detail_fwd.hpp>
0017 #include <boost/xpressive/detail/core/quant_style.hpp>
0018 #include <boost/xpressive/detail/core/state.hpp>
0019
0020 namespace boost { namespace xpressive { namespace detail
0021 {
0022
0023     ///////////////////////////////////////////////////////////////////////////////
0024     // assert_line_base
0025     //
0026     template<typename Traits>
0027     struct assert_line_base
0028         : quant_style_assertion
0029     {
0030         typedef typename Traits::char_type char_type;
0031         typedef typename Traits::char_class_type char_class_type;
0032
0033     protected:
0034         assert_line_base(Traits const &tr)
0035             : newline_(lookup_classname(tr, "newline"))
0036             , nl_(tr.widen('\n'))
0037             , cr_(tr.widen('\r'))
0038         {
0039         }
0040
0041         char_class_type newline_;
0042         char_type nl_, cr_;
0043     };
0044
0045 }}}
0046
0047 #endif