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// Copyright 2017 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <array>
#include <stdexcept>
#include <utility>
#include <vector>
#include "common/logging/log.h"
#include "common/param_package.h"
#include "common/string_util.h"
namespace Common {
constexpr char KEY_VALUE_SEPARATOR = ':';
constexpr char PARAM_SEPARATOR = ',';
constexpr char ESCAPE_CHARACTER = '$';
constexpr char KEY_VALUE_SEPARATOR_ESCAPE[] = "$0";
constexpr char PARAM_SEPARATOR_ESCAPE[] = "$1";
constexpr char ESCAPE_CHARACTER_ESCAPE[] = "$2";
/// A placeholder for empty param packages to avoid empty strings
/// (they may be recognized as "not set" by some frontend libraries like qt)
constexpr char EMPTY_PLACEHOLDER[] = "[empty]";
ParamPackage::ParamPackage(const std::string& serialized) {
if (serialized == EMPTY_PLACEHOLDER) {
return;
}
std::vector<std::string> pairs;
Common::SplitString(serialized, PARAM_SEPARATOR, pairs);
for (const std::string& pair : pairs) {
std::vector<std::string> key_value;
Common::SplitString(pair, KEY_VALUE_SEPARATOR, key_value);
if (key_value.size() != 2) {
LOG_ERROR(Common, "invalid key pair {}", pair);
continue;
}
for (std::string& part : key_value) {
part = Common::ReplaceAll(part, KEY_VALUE_SEPARATOR_ESCAPE, {KEY_VALUE_SEPARATOR});
part = Common::ReplaceAll(part, PARAM_SEPARATOR_ESCAPE, {PARAM_SEPARATOR});
part = Common::ReplaceAll(part, ESCAPE_CHARACTER_ESCAPE, {ESCAPE_CHARACTER});
}
Set(key_value[0], std::move(key_value[1]));
}
}
ParamPackage::ParamPackage(std::initializer_list<DataType::value_type> list) : data(list) {}
std::string ParamPackage::Serialize() const {
if (data.empty())
return EMPTY_PLACEHOLDER;
std::string result;
for (const auto& pair : data) {
std::array<std::string, 2> key_value{{pair.first, pair.second}};
for (std::string& part : key_value) {
part = Common::ReplaceAll(part, {ESCAPE_CHARACTER}, ESCAPE_CHARACTER_ESCAPE);
part = Common::ReplaceAll(part, {PARAM_SEPARATOR}, PARAM_SEPARATOR_ESCAPE);
part = Common::ReplaceAll(part, {KEY_VALUE_SEPARATOR}, KEY_VALUE_SEPARATOR_ESCAPE);
}
result += key_value[0] + KEY_VALUE_SEPARATOR + key_value[1] + PARAM_SEPARATOR;
}
result.pop_back(); // discard the trailing PARAM_SEPARATOR
return result;
}
std::string ParamPackage::Get(const std::string& key, const std::string& default_value) const {
auto pair = data.find(key);
if (pair == data.end()) {
LOG_DEBUG(Common, "key '{}' not found", key);
return default_value;
}
return pair->second;
}
int ParamPackage::Get(const std::string& key, int default_value) const {
auto pair = data.find(key);
if (pair == data.end()) {
LOG_DEBUG(Common, "key '{}' not found", key);
return default_value;
}
try {
return std::stoi(pair->second);
} catch (const std::logic_error&) {
LOG_ERROR(Common, "failed to convert {} to int", pair->second);
return default_value;
}
}
float ParamPackage::Get(const std::string& key, float default_value) const {
auto pair = data.find(key);
if (pair == data.end()) {
LOG_DEBUG(Common, "key {} not found", key);
return default_value;
}
try {
return std::stof(pair->second);
} catch (const std::logic_error&) {
LOG_ERROR(Common, "failed to convert {} to float", pair->second);
return default_value;
}
}
void ParamPackage::Set(const std::string& key, std::string value) {
data.insert_or_assign(key, std::move(value));
}
void ParamPackage::Set(const std::string& key, int value) {
data.insert_or_assign(key, std::to_string(value));
}
void ParamPackage::Set(const std::string& key, float value) {
data.insert_or_assign(key, std::to_string(value));
}
bool ParamPackage::Has(const std::string& key) const {
return data.find(key) != data.end();
}
void ParamPackage::Erase(const std::string& key) {
data.erase(key);
}
void ParamPackage::Clear() {
data.clear();
}
} // namespace Common
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