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/*=============================================================================
Copyright (c) 2001-2011 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_UC_TYPES_NOVEMBER_23_2008_0840PM)
#define BOOST_SPIRIT_UC_TYPES_NOVEMBER_23_2008_0840PM
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/cstdint.hpp>
#include <boost/foreach.hpp>
#include <boost/regex/pending/unicode_iterator.hpp>
#include <boost/type_traits/make_unsigned.hpp>
#include <string>
namespace boost { namespace spirit
{
typedef ::boost::uint32_t ucs4_char;
typedef char utf8_char;
typedef std::basic_string<ucs4_char> ucs4_string;
typedef std::basic_string<utf8_char> utf8_string;
template <typename Char>
inline utf8_string to_utf8(Char value)
{
// always store as UTF8
utf8_string result;
typedef std::back_insert_iterator<utf8_string> insert_iter;
insert_iter out_iter(result);
utf8_output_iterator<insert_iter> utf8_iter(out_iter);
typedef typename make_unsigned<Char>::type UChar;
*utf8_iter = (UChar)value;
return result;
}
template <typename Char>
inline utf8_string to_utf8(Char const* str)
{
// always store as UTF8
utf8_string result;
typedef std::back_insert_iterator<utf8_string> insert_iter;
insert_iter out_iter(result);
utf8_output_iterator<insert_iter> utf8_iter(out_iter);
typedef typename make_unsigned<Char>::type UChar;
while (*str)
*utf8_iter++ = (UChar)*str++;
return result;
}
template <typename Char, typename Traits, typename Allocator>
inline utf8_string
to_utf8(std::basic_string<Char, Traits, Allocator> const& str)
{
// always store as UTF8
utf8_string result;
typedef std::back_insert_iterator<utf8_string> insert_iter;
insert_iter out_iter(result);
utf8_output_iterator<insert_iter> utf8_iter(out_iter);
typedef typename make_unsigned<Char>::type UChar;
BOOST_FOREACH(Char ch, str)
{
*utf8_iter++ = (UChar)ch;
}
return result;
}
}}
#endif
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