mirror of
https://github.com/jezhiggins/arabica
synced 2024-12-28 22:23:21 +01:00
31c13685d1
* Unused variable * Unsigned value always >= 0 * Parameter initialization order * Virtual destructors for virtual classes
131 lines
3.6 KiB
C++
131 lines
3.6 KiB
C++
#ifndef ARABICA_IMPL_CODECVT_SPECIALISATIONS_H
|
|
#define ARABICA_IMPL_CODECVT_SPECIALISATIONS_H
|
|
|
|
#include <locale>
|
|
|
|
namespace std
|
|
{
|
|
|
|
template<>
|
|
class codecvt<char, wchar_t, std::mbstate_t> :
|
|
public locale::facet, public codecvt_base
|
|
{
|
|
public:
|
|
static locale::id id;
|
|
|
|
codecvt_base::result out(std::mbstate_t& state,
|
|
const char* from,
|
|
const char* from_end,
|
|
const char*& from_next,
|
|
wchar_t* to,
|
|
wchar_t* to_limit,
|
|
wchar_t*& to_next) const
|
|
{
|
|
return this->do_out(state, from, from_end, from_next, to, to_limit, to_next);
|
|
} // out
|
|
|
|
|
|
codecvt_base::result in(std::mbstate_t& state,
|
|
const wchar_t* from,
|
|
const wchar_t* from_end,
|
|
const wchar_t*& from_next,
|
|
char* to,
|
|
char* to_limit,
|
|
char*& to_next) const
|
|
{
|
|
return this->do_in(state, from, from_end, from_next, to, to_limit, to_next);
|
|
} // in
|
|
|
|
int encoding() const throw()
|
|
{
|
|
return this->do_encoding();
|
|
} // encoding
|
|
|
|
bool always_noconv() const throw()
|
|
{
|
|
return this->do_always_noconv();
|
|
} // always_noconv
|
|
|
|
int length(std::mbstate_t& state,
|
|
const wchar_t* from,
|
|
const wchar_t* end,
|
|
size_t max) const
|
|
{
|
|
return this->do_length(state, from, end, max);
|
|
} // length
|
|
|
|
protected:
|
|
virtual ~codecvt() { }
|
|
|
|
virtual codecvt_base::result do_out(std::mbstate_t&,
|
|
const char* from,
|
|
const char* from_end,
|
|
const char*& from_next,
|
|
wchar_t* to,
|
|
wchar_t* to_limit,
|
|
wchar_t*& to_next) const
|
|
{
|
|
int limit = std::max<int>(from_end - from, to_limit - to);
|
|
from_next = from;
|
|
to_next = to;
|
|
|
|
while(limit--)
|
|
*to_next++ = static_cast<wchar_t>(*from_next++);
|
|
|
|
return codecvt_base::ok;
|
|
} // do_out
|
|
|
|
|
|
virtual codecvt_base::result do_in(std::mbstate_t&,
|
|
const wchar_t* from,
|
|
const wchar_t* from_end,
|
|
const wchar_t*& from_next,
|
|
char* to,
|
|
char* to_limit,
|
|
char*& to_next) const
|
|
{
|
|
int limit = std::max<int>(from_end - from, to_limit - to);
|
|
from_next = from;
|
|
to_next = to;
|
|
|
|
while(limit--)
|
|
*to_next++ = static_cast<char>(*from_next++);
|
|
|
|
return codecvt_base::ok;
|
|
} // do_in
|
|
|
|
virtual codecvt_base::result do_unshift(std::mbstate_t&,
|
|
wchar_t* to,
|
|
wchar_t* /*to_limit*/,
|
|
wchar_t*& to_next) const
|
|
{
|
|
to_next = to;
|
|
return codecvt_base::noconv;
|
|
} // do_unshift
|
|
|
|
virtual int do_encoding() const throw()
|
|
{
|
|
return 1;
|
|
} // do_encoding
|
|
|
|
virtual bool do_always_noconv() const throw()
|
|
{
|
|
return false;
|
|
} // do_always_noconv
|
|
|
|
virtual int do_length(std::mbstate_t&,
|
|
const wchar_t* from,
|
|
const wchar_t* end,
|
|
size_t max) const
|
|
{
|
|
return std::min<int>(max, (end - from));
|
|
} // do_length
|
|
|
|
virtual int do_max_length() const throw()
|
|
{
|
|
return 1;
|
|
} // do_max_length
|
|
}; // class codecvt<char, wchar_t, std::mbstate_t> :
|
|
|
|
} // namespace std
|
|
#endif
|