| // Boost uuid_io.hpp header file ----------------------------------------------// |
| |
| // Copyright 2009 Andy Tompkins. |
| // 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) |
| |
| // Revision History |
| // 20 Mar 2009 - Initial Revision |
| // 28 Nov 2009 - disabled deprecated warnings for MSVC |
| |
| #ifndef BOOST_UUID_IO_HPP |
| #define BOOST_UUID_IO_HPP |
| |
| #include <boost/uuid/uuid.hpp> |
| #include <ios> |
| #include <ostream> |
| #include <istream> |
| #include <boost/io/ios_state.hpp> |
| #include <locale> |
| #include <algorithm> |
| |
| #if defined(_MSC_VER) |
| #pragma warning(push) // Save warning settings. |
| #pragma warning(disable : 4996) // Disable deprecated std::ctype<char>::widen, std::copy |
| #endif |
| |
| namespace boost { |
| namespace uuids { |
| |
| template <typename ch, typename char_traits> |
| std::basic_ostream<ch, char_traits>& operator<<(std::basic_ostream<ch, char_traits> &os, uuid const& u) |
| { |
| io::ios_flags_saver flags_saver(os); |
| io::basic_ios_fill_saver<ch, char_traits> fill_saver(os); |
| |
| const typename std::basic_ostream<ch, char_traits>::sentry ok(os); |
| if (ok) { |
| const std::streamsize width = os.width(0); |
| const std::streamsize uuid_width = 36; |
| const std::ios_base::fmtflags flags = os.flags(); |
| const typename std::basic_ios<ch, char_traits>::char_type fill = os.fill(); |
| if (flags & (std::ios_base::right | std::ios_base::internal)) { |
| for (std::streamsize i=uuid_width; i<width; i++) { |
| os << fill; |
| } |
| } |
| |
| os << std::hex; |
| os.fill(os.widen('0')); |
| |
| std::size_t i=0; |
| for (uuid::const_iterator i_data = u.begin(); i_data!=u.end(); ++i_data, ++i) { |
| os.width(2); |
| os << static_cast<unsigned int>(*i_data); |
| if (i == 3 || i == 5 || i == 7 || i == 9) { |
| os << os.widen('-'); |
| } |
| } |
| |
| if (flags & std::ios_base::left) { |
| for (std::streamsize j=uuid_width; j<width; j++) { |
| os << fill; |
| } |
| } |
| |
| os.width(0); //used the width so reset it |
| } |
| return os; |
| } |
| |
| template <typename ch, typename char_traits> |
| std::basic_istream<ch, char_traits>& operator>>(std::basic_istream<ch, char_traits> &is, uuid &u) |
| { |
| const typename std::basic_istream<ch, char_traits>::sentry ok(is); |
| if (ok) { |
| unsigned char data[16]; |
| |
| typedef std::ctype<ch> ctype_t; |
| ctype_t const& ctype = std::use_facet<ctype_t>(is.getloc()); |
| |
| ch xdigits[16]; |
| { |
| char szdigits[] = "0123456789ABCDEF"; |
| ctype.widen(szdigits, szdigits+16, xdigits); |
| } |
| ch*const xdigits_end = xdigits+16; |
| |
| ch c; |
| for (std::size_t i=0; i<u.size() && is; ++i) { |
| is >> c; |
| c = ctype.toupper(c); |
| |
| ch* f = std::find(xdigits, xdigits_end, c); |
| if (f == xdigits_end) { |
| is.setstate(std::ios_base::failbit); |
| break; |
| } |
| |
| unsigned char byte = static_cast<unsigned char>(std::distance(&xdigits[0], f)); |
| |
| is >> c; |
| c = ctype.toupper(c); |
| f = std::find(xdigits, xdigits_end, c); |
| if (f == xdigits_end) { |
| is.setstate(std::ios_base::failbit); |
| break; |
| } |
| |
| byte <<= 4; |
| byte |= static_cast<unsigned char>(std::distance(&xdigits[0], f)); |
| |
| data[i] = byte; |
| |
| if (is) { |
| if (i == 3 || i == 5 || i == 7 || i == 9) { |
| is >> c; |
| if (c != is.widen('-')) is.setstate(std::ios_base::failbit); |
| } |
| } |
| } |
| |
| if (is) { |
| std::copy(data, data+16, u.begin()); |
| } |
| } |
| return is; |
| } |
| |
| namespace detail { |
| inline char to_char(size_t i) { |
| if (i <= 9) { |
| return static_cast<char>('0' + i); |
| } else { |
| return static_cast<char>('a' + (i-10)); |
| } |
| } |
| |
| inline wchar_t to_wchar(size_t i) { |
| if (i <= 9) { |
| return static_cast<wchar_t>(L'0' + i); |
| } else { |
| return static_cast<wchar_t>(L'a' + (i-10)); |
| } |
| } |
| |
| } // namespace detail |
| |
| inline std::string to_string(uuid const& u) |
| { |
| std::string result; |
| result.reserve(36); |
| |
| std::size_t i=0; |
| for (uuid::const_iterator it_data = u.begin(); it_data!=u.end(); ++it_data, ++i) { |
| const size_t hi = ((*it_data) >> 4) & 0x0F; |
| result += detail::to_char(hi); |
| |
| const size_t lo = (*it_data) & 0x0F; |
| result += detail::to_char(lo); |
| |
| if (i == 3 || i == 5 || i == 7 || i == 9) { |
| result += '-'; |
| } |
| } |
| return result; |
| } |
| |
| #ifndef BOOST_NO_STD_WSTRING |
| inline std::wstring to_wstring(uuid const& u) |
| { |
| std::wstring result; |
| result.reserve(36); |
| |
| std::size_t i=0; |
| for (uuid::const_iterator it_data = u.begin(); it_data!=u.end(); ++it_data, ++i) { |
| const size_t hi = ((*it_data) >> 4) & 0x0F; |
| result += detail::to_wchar(hi); |
| |
| const size_t lo = (*it_data) & 0x0F; |
| result += detail::to_wchar(lo); |
| |
| if (i == 3 || i == 5 || i == 7 || i == 9) { |
| result += L'-'; |
| } |
| } |
| return result; |
| } |
| |
| #endif |
| |
| }} //namespace boost::uuids |
| |
| #if defined(_MSC_VER) |
| #pragma warning(pop) // Restore warnings to previous state. |
| #endif |
| |
| #endif // BOOST_UUID_IO_HPP |