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//
// Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
// Copyright (c) 2024 Alexander Grund
//
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/locale/format.hpp>
#include <boost/locale/generator.hpp>
#include <boost/locale/info.hpp>
#include "../util/numeric_conversion.hpp"
#include <algorithm>
#include <iostream>
#include <limits>
namespace boost { namespace locale { namespace detail {
struct format_parser::data {
unsigned position;
std::streamsize precision;
std::ios_base::fmtflags flags;
ios_info info;
std::locale saved_locale;
bool restore_locale;
void* cookie;
void (*imbuer)(void*, const std::locale&);
};
format_parser::format_parser(std::ios_base& ios, void* cookie, void (*imbuer)(void*, const std::locale&)) :
ios_(ios), d(new data)
{
d->position = std::numeric_limits<unsigned>::max();
d->precision = ios.precision();
d->flags = ios.flags();
d->info = ios_info::get(ios);
d->saved_locale = ios.getloc();
d->restore_locale = false;
d->cookie = cookie;
d->imbuer = imbuer;
}
void format_parser::imbue(const std::locale& l)
{
d->imbuer(d->cookie, l);
}
format_parser::~format_parser() = default;
void format_parser::restore()
{
ios_info::get(ios_) = d->info;
ios_.width(0);
ios_.flags(d->flags);
if(d->restore_locale)
imbue(d->saved_locale);
}
unsigned format_parser::get_position()
{
return d->position;
}
void format_parser::set_one_flag(const std::string& key, const std::string& value)
{
if(key.empty())
return;
decltype(d->position) position;
if(util::try_to_int(key, position) && position > 0u) {
d->position = position - 1u;
} else if(key == "num" || key == "number") {
as::number(ios_);
if(value == "hex")
ios_.setf(std::ios_base::hex, std::ios_base::basefield);
else if(value == "oct")
ios_.setf(std::ios_base::oct, std::ios_base::basefield);
else if(value == "sci" || value == "scientific")
ios_.setf(std::ios_base::scientific, std::ios_base::floatfield);
else if(value == "fix" || value == "fixed")
ios_.setf(std::ios_base::fixed, std::ios_base::floatfield);
} else if(key == "cur" || key == "currency") {
as::currency(ios_);
if(value == "iso")
as::currency_iso(ios_);
else if(value == "nat" || value == "national")
as::currency_national(ios_);
} else if(key == "per" || key == "percent")
as::percent(ios_);
else if(key == "date") {
as::date(ios_);
if(value == "s" || value == "short")
as::date_short(ios_);
else if(value == "m" || value == "medium")
as::date_medium(ios_);
else if(value == "l" || value == "long")
as::date_long(ios_);
else if(value == "f" || value == "full")
as::date_full(ios_);
} else if(key == "time") {
as::time(ios_);
if(value == "s" || value == "short")
as::time_short(ios_);
else if(value == "m" || value == "medium")
as::time_medium(ios_);
else if(value == "l" || value == "long")
as::time_long(ios_);
else if(value == "f" || value == "full")
as::time_full(ios_);
} else if(key == "dt" || key == "datetime") {
as::datetime(ios_);
if(value == "s" || value == "short") {
as::date_short(ios_);
as::time_short(ios_);
} else if(value == "m" || value == "medium") {
as::date_medium(ios_);
as::time_medium(ios_);
} else if(value == "l" || value == "long") {
as::date_long(ios_);
as::time_long(ios_);
} else if(value == "f" || value == "full") {
as::date_full(ios_);
as::time_full(ios_);
}
} else if(key == "spell" || key == "spellout")
as::spellout(ios_);
else if(key == "ord" || key == "ordinal")
as::ordinal(ios_);
else if(key == "left" || key == "<")
ios_.setf(std::ios_base::left, std::ios_base::adjustfield);
else if(key == "right" || key == ">")
ios_.setf(std::ios_base::right, std::ios_base::adjustfield);
else if(key == "gmt")
as::gmt(ios_);
else if(key == "local")
as::local_time(ios_);
else if(key == "timezone" || key == "tz")
ios_info::get(ios_).time_zone(value);
else if(key == "w" || key == "width") {
int v;
if(util::try_to_int(value, v))
ios_.width(v);
} else if(key == "p" || key == "precision") {
int v;
if(util::try_to_int(value, v))
ios_.precision(v);
} else if(key == "locale") {
if(!d->restore_locale) {
d->saved_locale = ios_.getloc();
d->restore_locale = true;
}
generator gen;
gen.categories(category_t::formatting);
std::locale new_loc;
if(value.find('.') == std::string::npos)
new_loc = gen(value + "." + std::use_facet<info>(d->saved_locale).encoding());
else
new_loc = gen(value);
imbue(new_loc);
}
}
}}} // namespace boost::locale::detail
// boostinspect:nominmax
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