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- #ifndef BOOST_UTF8_CODECVT_FACET_HPP
- #define BOOST_UTF8_CODECVT_FACET_HPP
- #if defined(_MSC_VER) && (_MSC_VER >= 1020)
- # pragma once
- #endif
- #include <locale>
- #include <cwchar>
- #include <cstddef>
- #include <boost/config.hpp>
- #include <boost/detail/workaround.hpp>
- #if defined(BOOST_NO_STDC_NAMESPACE)
- namespace std {
- using ::mbstate_t;
- using ::size_t;
- }
- #endif
- #if !defined(__MSL_CPP__) && !defined(__LIBCOMO__)
- #define BOOST_CODECVT_DO_LENGTH_CONST const
- #else
- #define BOOST_CODECVT_DO_LENGTH_CONST
- #endif
- #define MB_LENGTH_MAX 8
- BOOST_UTF8_BEGIN_NAMESPACE
- struct BOOST_UTF8_DECL utf8_codecvt_facet :
- public std::codecvt<wchar_t, char, std::mbstate_t>
- {
- public:
- explicit utf8_codecvt_facet(std::size_t no_locale_manage=0)
- : std::codecvt<wchar_t, char, std::mbstate_t>(no_locale_manage)
- {}
- protected:
- virtual std::codecvt_base::result do_in(
- std::mbstate_t& state,
- const char * from,
- const char * from_end,
- const char * & from_next,
- wchar_t * to,
- wchar_t * to_end,
- wchar_t*& to_next
- ) const;
- virtual std::codecvt_base::result do_out(
- std::mbstate_t & state, const wchar_t * from,
- const wchar_t * from_end, const wchar_t* & from_next,
- char * to, char * to_end, char * & to_next
- ) const;
- bool invalid_continuing_octet(unsigned char octet_1) const {
- return (octet_1 < 0x80|| 0xbf< octet_1);
- }
- bool invalid_leading_octet(unsigned char octet_1) const {
- return (0x7f < octet_1 && octet_1 < 0xc0) ||
- (octet_1 > 0xfd);
- }
-
- static unsigned int get_cont_octet_count(unsigned char lead_octet) {
- return get_octet_count(lead_octet) - 1;
- }
- static unsigned int get_octet_count(unsigned char lead_octet);
-
-
- int get_cont_octet_out_count(wchar_t word) const ;
- virtual bool do_always_noconv() const throw() { return false; }
-
- virtual std::codecvt_base::result do_unshift(
- std::mbstate_t&,
- char * from,
- char * ,
- char * & next
- ) const
- {
- next = from;
- return ok;
- }
- virtual int do_encoding() const throw() {
- const int variable_byte_external_encoding=0;
- return variable_byte_external_encoding;
- }
-
-
- virtual int do_length(
- BOOST_CODECVT_DO_LENGTH_CONST std::mbstate_t &,
- const char * from,
- const char * from_end,
- std::size_t max_limit
- #if BOOST_WORKAROUND(__IBMCPP__, BOOST_TESTED_AT(600))
- ) const throw();
- #else
- ) const;
- #endif
-
- virtual int do_max_length() const throw () {
- return 6;
- }
- };
- BOOST_UTF8_END_NAMESPACE
- #endif
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