Chris@16: //  Copyright (c) 2001-2011 Hartmut Kaiser
Chris@16: // 
Chris@16: //  Distributed under the Boost Software License, Version 1.0. (See accompanying 
Chris@16: //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #if !defined(BOOST_SPIRIT_KARMA_STRING_COMPARE_AUG_08_2009_0756PM)
Chris@16: #define BOOST_SPIRIT_KARMA_STRING_COMPARE_AUG_08_2009_0756PM
Chris@16: 
Chris@16: #if defined(_MSC_VER)
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #include <string>
Chris@16: #include <boost/spirit/home/support/char_class.hpp>
Chris@16: #include <boost/spirit/home/karma/detail/generate_to.hpp>
Chris@16: #include <boost/range/iterator_range.hpp>
Chris@16: 
Chris@16: namespace boost { namespace spirit { namespace karma { namespace detail
Chris@16: {
Chris@16:     template <typename Char>
Chris@16:     bool string_compare(Char const* attr, Char const* lit)
Chris@16:     {
Chris@16:         Char ch_attr = *attr;
Chris@16:         Char ch_lit = *lit;
Chris@16: 
Chris@16:         while (!!ch_lit && !!ch_attr)
Chris@16:         {
Chris@16:             if (ch_attr != ch_lit)
Chris@16:                 return false;
Chris@16: 
Chris@16:             ch_attr = *++attr;
Chris@16:             ch_lit = *++lit;
Chris@16:         }
Chris@16: 
Chris@16:         return !ch_lit && !ch_attr;
Chris@16:     }
Chris@16: 
Chris@16:     template <typename Char>
Chris@16:     bool string_compare(Char const* attr, Char const* lit, unused_type, unused_type)
Chris@16:     {
Chris@16:         return string_compare(attr, lit);
Chris@16:     }
Chris@16: 
Chris@16:     template <typename Char>
Chris@16:     bool string_compare(unused_type, Char const*, unused_type, unused_type)
Chris@16:     {
Chris@16:         return true;
Chris@16:     }
Chris@16: 
Chris@16:     template <typename Char, typename CharEncoding, typename Tag>
Chris@16:     bool string_compare(Char const* attr, Char const* lit, CharEncoding, Tag)
Chris@16:     {
Chris@16:         Char ch_attr = *attr;
Chris@16:         Char ch_lit = spirit::char_class::convert<CharEncoding>::to(Tag(), *lit);
Chris@16: 
Chris@16:         while (!!ch_lit && !!ch_attr)
Chris@16:         {
Chris@16:             if (ch_attr != ch_lit)
Chris@16:                 return false;
Chris@16: 
Chris@16:             ch_attr = *++attr;
Chris@16:             ch_lit = spirit::char_class::convert<CharEncoding>::to(Tag(), *++lit);
Chris@16:         }
Chris@16: 
Chris@16:         return !ch_lit && !ch_attr;
Chris@16:     }
Chris@16: 
Chris@16:     template <typename Char, typename CharEncoding, typename Tag>
Chris@16:     bool string_compare(unused_type, Char const*, CharEncoding, Tag)
Chris@16:     {
Chris@16:         return true;
Chris@16:     }
Chris@16: 
Chris@16: }}}}
Chris@16: 
Chris@16: #endif