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construct/ircd/locale.cc
2017-03-10 17:51:18 -08:00

268 lines
7 KiB
C++

/*
* charybdis: standing on the shoulders of giant build times
*
* Copyright (C) 2016 Charybdis Development Team
* Copyright (C) 2016 Jason Volk <jason@zemos.net>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice is present in all copies.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <boost/locale.hpp>
namespace ircd {
namespace locale {
} // namespace locale
} // namespace ircd
#ifdef HAVE_CODECVT
std::u16string
ircd::locale::char16::conv(const std::string &s)
{
static std::wstring_convert<std::codecvt_utf8<char16_t>, char16_t> converter;
return converter.from_bytes(s);
}
#else
std::u16string
ircd::locale::char16::conv(const std::string &s)
{
return boost::locale::conv::utf_to_utf<char16_t>(s);
}
#endif
#ifdef HAVE_CODECVT
std::u16string
ircd::locale::char16::conv(const char *const &s)
{
static std::wstring_convert<std::codecvt_utf8<char16_t>, char16_t> converter;
return s? converter.from_bytes(s) : std::u16string{};
}
#else
std::u16string
ircd::locale::char16::conv(const char *const &s)
{
return boost::locale::conv::utf_to_utf<char16_t>(s);
}
#endif
#ifdef HAVE_CODECVT
std::u16string
ircd::locale::char16::conv(const char *const &s,
const size_t &len)
{
static std::wstring_convert<std::codecvt_utf8<char16_t>, char16_t> converter;
return s && len? converter.from_bytes(s, s + len) : std::u16string{};
}
#else
std::u16string
ircd::locale::char16::conv(const char *const &s,
const size_t &len)
{
return boost::locale::conv::utf_to_utf<char16_t>(s, s + len);
}
#endif
#ifdef HAVE_CODECVT
std::string
ircd::locale::char16::conv(const std::u16string &s)
{
static std::wstring_convert<std::codecvt_utf8<char16_t>, char16_t> converter;
return converter.to_bytes(s);
}
#else
std::string
ircd::locale::char16::conv(const std::u16string &s)
{
return boost::locale::conv::utf_to_utf<char>(s);
}
#endif
#ifdef HAVE_CODECVT
std::string
ircd::locale::char16::conv(const char16_t *const &s)
{
static std::wstring_convert<std::codecvt_utf8<char16_t>, char16_t> converter;
return s? converter.to_bytes(s) : std::string{};
}
#else
std::string
ircd::locale::char16::conv(const char16_t *const &s)
{
return boost::locale::conv::utf_to_utf<char>(s);
}
#endif
#ifdef HAVE_CODECVT
std::string
ircd::locale::char16::conv(const char16_t *const &s,
const size_t &len)
{
static std::wstring_convert<std::codecvt_utf8<char16_t>, char16_t> converter;
return s && len? converter.to_bytes(s, s + len) : std::string{};
}
#else
std::string
ircd::locale::char16::conv(const char16_t *const &s,
const size_t &len)
{
return boost::locale::conv::utf_to_utf<char>(s, s + len);
}
#endif
#ifdef HAVE_CODECVT
size_t
ircd::locale::char16::conv(const char16_t *const &str,
char *const &buf,
const size_t &max)
{
static std::wstring_convert<std::codecvt_utf8<char16_t>, char16_t> converter;
//TODO: optimize
const auto s(converter.to_bytes(str));
return strlcpy(buf, s.c_str(), max);
}
#else
size_t
ircd::locale::char16::conv(const char16_t *const &str,
char *const &buf,
const size_t &max)
{
//TODO: optimize
const auto s(boost::locale::conv::utf_to_utf<char>(str));
return strlcpy(buf, s.c_str(), max);
}
#endif
#ifdef HAVE_CODECVT
size_t
ircd::locale::char16::conv(const char16_t *const &str,
const size_t &len,
char *const &buf,
const size_t &max)
{
static std::wstring_convert<std::codecvt_utf8<char16_t>, char16_t> converter;
//TODO: optimize
const auto s(converter.to_bytes(str, str + len));
return strlcpy(buf, s.c_str(), max);
}
#else
size_t
ircd::locale::char16::conv(const char16_t *const &str,
const size_t &len,
char *const &buf,
const size_t &max)
{
//TODO: optimize
const auto s(boost::locale::conv::utf_to_utf<char>(str, str + len));
return strlcpy(buf, s.c_str(), max);
}
#endif
#ifdef HAVE_CODECVT
size_t
ircd::locale::char16::conv(const char *const &str,
char16_t *const &buf,
const size_t &max)
{
static std::wstring_convert<std::codecvt_utf8<char16_t>, char16_t> converter;
if(unlikely(!max))
return 0;
//TODO: optimize
const auto s(converter.from_bytes(str));
const auto cpsz(std::min(s.size(), size_t(max - 1)));
memcpy(buf, s.data(), cpsz * 2);
buf[cpsz] = char16_t(0);
return cpsz;
}
#else
size_t
ircd::locale::char16::conv(const char *const &str,
char16_t *const &buf,
const size_t &max)
{
if(unlikely(!max))
return 0;
//TODO: optimize
const auto s(boost::locale::conv::utf_to_utf<char16_t>(str));
const auto cpsz(std::min(s.size(), size_t(max - 1)));
memcpy(buf, s.data(), cpsz * 2);
buf[cpsz] = char16_t(0);
return cpsz;
}
#endif
#ifdef HAVE_CODECVT
size_t
ircd::locale::char16::conv(const char *const &str,
const size_t &len,
char16_t *const &buf,
const size_t &max)
{
static std::wstring_convert<std::codecvt_utf8<char16_t>, char16_t> converter;
if(unlikely(!max))
return 0;
//TODO: optimize
const auto s(converter.from_bytes(str, str + len));
const auto cpsz(std::min(s.size(), size_t(max - 1)));
memcpy(buf, s.data(), cpsz * 2);
buf[cpsz] = char16_t(0);
return cpsz;
}
#else
size_t
ircd::locale::char16::conv(const char *const &str,
const size_t &len,
char16_t *const &buf,
const size_t &max)
{
if(unlikely(!max))
return 0;
//TODO: optimize
const auto s(boost::locale::conv::utf_to_utf<char16_t>(str, str + len));
const auto cpsz(std::min(s.size(), size_t(max - 1)));
memcpy(buf, s.data(), cpsz * 2);
buf[cpsz] = char16_t(0);
return cpsz;
}
#endif
char16_t
ircd::locale::char16::conv(const char &c)
{
//TODO: optimize
char16_t ret[2];
char cs[2] = { c, '\0' };
conv(cs, ret, 1);
return ret[0];
}
char
ircd::locale::char16::conv(const char16_t &c)
{
//TODO: optimize
char ret[2];
char16_t cs[2] = { c, char16_t(0) };
conv(cs, ret, 1);
return ret[0];
}