63e88f80
 Hu Chunming
提交三方库
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//
// Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
//
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#ifndef BOOST_LOCALE_ENCODING_UTF_HPP_INCLUDED
#define BOOST_LOCALE_ENCODING_UTF_HPP_INCLUDED
#include <boost/locale/encoding_errors.hpp>
#include <boost/locale/utf.hpp>
#include <boost/locale/util/string.hpp>
#include <iterator>
#ifdef BOOST_MSVC
# pragma warning(push)
# pragma warning(disable : 4275 4251 4231 4660)
#endif
namespace boost { namespace locale { namespace conv {
/// \addtogroup codepage
///
/// @{
/// Convert a Unicode text in range [begin,end) to other Unicode encoding
template<typename CharOut, typename CharIn>
std::basic_string<CharOut> utf_to_utf(const CharIn* begin, const CharIn* end, method_type how = default_method)
{
std::basic_string<CharOut> result;
result.reserve(end - begin);
typedef std::back_insert_iterator<std::basic_string<CharOut>> inserter_type;
inserter_type inserter(result);
utf::code_point c;
while(begin != end) {
c = utf::utf_traits<CharIn>::template decode<const CharIn*>(begin, end);
if(c == utf::illegal || c == utf::incomplete) {
if(how == stop)
throw conversion_error();
} else {
utf::utf_traits<CharOut>::template encode<inserter_type>(c, inserter);
}
}
return result;
}
/// Convert a Unicode NULL terminated string \a str other Unicode encoding
template<typename CharOut, typename CharIn>
std::basic_string<CharOut> utf_to_utf(const CharIn* str, method_type how = default_method)
{
return utf_to_utf<CharOut, CharIn>(str, util::str_end(str), how);
}
/// Convert a Unicode string \a str other Unicode encoding
template<typename CharOut, typename CharIn>
std::basic_string<CharOut> utf_to_utf(const std::basic_string<CharIn>& str, method_type how = default_method)
{
return utf_to_utf<CharOut, CharIn>(str.c_str(), str.c_str() + str.size(), how);
}
/// @}
}}} // namespace boost::locale::conv
#ifdef BOOST_MSVC
# pragma warning(pop)
#endif
#endif
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