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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
// Filesystem metadata management
#include "fsmeta.h"
#include "strformat.h"
#include <optional>
namespace fs {
const char *meta_data::entry_name(meta_name name)
{
switch(name) {
case meta_name::basic: return "basic";
case meta_name::creation_date: return "creation_date";
case meta_name::length: return "length";
case meta_name::loading_address: return "loading_address";
case meta_name::locked: return "locked";
case meta_name::modification_date: return "modification_date";
case meta_name::name: return "name";
case meta_name::os_minimum_version: return "os_minimum_version";
case meta_name::os_version: return "os_version";
case meta_name::rsrc_length: return "rsrc_length";
case meta_name::sequential: return "sequential";
case meta_name::size_in_blocks: return "size_in_blocks";
case meta_name::file_type: return "file_type";
case meta_name::ascii_flag: return "ascii_flag";
case meta_name::owner_id: return "owner_id";
case meta_name::attributes: return "attributes";
}
return "";
}
template<class... Ts> struct overloaded : Ts... { using Ts::operator()...; };
template<class... Ts> overloaded(Ts...)->overloaded<Ts...>;
meta_type meta_value::type() const
{
std::optional<meta_type> result;
std::visit(overloaded
{
[&result](const std::string &) { result = meta_type::string; },
[&result](std::uint64_t) { result = meta_type::number; },
[&result](bool) { result = meta_type::flag; },
[&result](const util::arbitrary_datetime &) { result = meta_type::date; }
}, value);
return *result;
}
std::string meta_value::to_string() const
{
std::string result;
switch (type())
{
case meta_type::string:
result = as_string();
break;
case meta_type::number:
result = util::string_format("0x%x", as_number());
break;
case meta_type::flag:
result = as_flag() ? "t" : "f";
break;
case meta_type::date:
{
auto dt = as_date();
result = util::string_format("%04d-%02d-%02d %02d:%02d:%02d",
dt.year, dt.month, dt.day_of_month,
dt.hour, dt.minute, dt.second);
}
break;
default:
throw false;
}
return result;
}
} // namespace fs
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