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//
// Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
// Copyright (c) 2022-2023 Alexander Grund
//
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include "posix_backend.hpp"
#include <boost/locale/gnu_gettext.hpp>
#include <boost/locale/info.hpp>
#include <boost/locale/localization_backend.hpp>
#include <boost/locale/util.hpp>
#include <boost/locale/util/locale_data.hpp>
#include <algorithm>
#include <iterator>
#include <langinfo.h>
#include <vector>
#if defined(__FreeBSD__)
# include <xlocale.h>
#endif
#include "../shared/message.hpp"
#include "../util/gregorian.hpp"
#include "../util/make_std_unique.hpp"
#include "all_generator.hpp"
namespace boost { namespace locale { namespace impl_posix {
class posix_localization_backend : public localization_backend {
public:
posix_localization_backend() : invalid_(true) {}
posix_localization_backend(const posix_localization_backend& other) :
localization_backend(), paths_(other.paths_), domains_(other.domains_), locale_id_(other.locale_id_),
invalid_(true)
{}
posix_localization_backend* clone() const override { return new posix_localization_backend(*this); }
void set_option(const std::string& name, const std::string& value) override
{
invalid_ = true;
if(name == "locale")
locale_id_ = value;
else if(name == "message_path")
paths_.push_back(value);
else if(name == "message_application")
domains_.push_back(value);
}
void clear_options() override
{
invalid_ = true;
locale_id_.clear();
paths_.clear();
domains_.clear();
}
static void free_locale_by_ptr(locale_t* lc)
{
freelocale(*lc);
delete lc;
}
void prepare_data()
{
if(!invalid_)
return;
real_id_ = locale_id_.empty() ? util::get_system_locale() : locale_id_;
data_.parse(real_id_);
lc_.reset();
locale_t tmp = newlocale(LC_ALL_MASK, real_id_.c_str(), nullptr);
if(!tmp)
tmp = newlocale(LC_ALL_MASK, "C", nullptr);
if(!tmp)
throw std::runtime_error("newlocale failed");
locale_t* tmp_p;
try {
tmp_p = new locale_t(tmp);
} catch(...) {
freelocale(tmp);
throw;
}
lc_ = std::shared_ptr<locale_t>(tmp_p, free_locale_by_ptr);
invalid_ = false;
}
std::locale install(const std::locale& base, category_t category, char_facet_t type) override
{
prepare_data();
switch(category) {
case category_t::convert: return create_convert(base, lc_, type);
case category_t::collation: return create_collate(base, lc_, type);
case category_t::formatting: return create_formatting(base, lc_, type);
case category_t::parsing: return create_parsing(base, lc_, type);
case category_t::codepage: return create_codecvt(base, nl_langinfo_l(CODESET, *lc_), type);
case category_t::calendar: return util::install_gregorian_calendar(base, data_.country());
case category_t::message: return detail::install_message_facet(base, type, data_, domains_, paths_);
case category_t::information: return util::create_info(base, real_id_);
case category_t::boundary: break; // Not implemented
}
return base;
}
private:
std::vector<std::string> paths_;
std::vector<std::string> domains_;
std::string locale_id_;
std::string real_id_;
util::locale_data data_;
bool invalid_;
std::shared_ptr<locale_t> lc_;
};
std::unique_ptr<localization_backend> create_localization_backend()
{
return make_std_unique<posix_localization_backend>();
}
}}} // namespace boost::locale::impl_posix
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