// 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 i=uuid_width; i<width; i++) { | |
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 |