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#define NODE_CONVERT_H_62B23520_7C8E_11DE_8A39_0800200C9A66
#if defined(_MSC_VER) || \
(defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || \
(__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
#pragma once
#endif
#include <array>
#include <cmath>
#include <limits>
#include <list>
#include <map>
#include <unordered_map>
#include <sstream>
#include <type_traits>
#include <valarray>
#include <vector>
#if __cplusplus >= 201703L
#include <string_view>
#endif
#include "yaml-cpp/binary.h"
#include "yaml-cpp/node/impl.h"
#include "yaml-cpp/node/iterator.h"
#include "yaml-cpp/node/node.h"
#include "yaml-cpp/node/type.h"
#include "yaml-cpp/null.h"
namespace YAML {
class Binary;
struct _Null;
template <typename T>
struct convert;
} // namespace YAML
namespace YAML {
namespace conversion {
inline bool IsInfinity(const std::string& input) {
return input == ".inf" || input == ".Inf" || input == ".INF" ||
input == "+.inf" || input == "+.Inf" || input == "+.INF";
}
inline bool IsNegativeInfinity(const std::string& input) {
return input == "-.inf" || input == "-.Inf" || input == "-.INF";
}
inline bool IsNaN(const std::string& input) {
return input == ".nan" || input == ".NaN" || input == ".NAN";
}
}
// Node
template <>
struct convert<Node> {
static Node encode(const Node& rhs) { return rhs; }
static bool decode(const Node& node, Node& rhs) {
rhs.reset(node);
return true;
}
};
// std::string
template <>
struct convert<std::string> {
static Node encode(const std::string& rhs) { return Node(rhs); }
static bool decode(const Node& node, std::string& rhs) {
if (!node.IsScalar())
return false;
rhs = node.Scalar();
return true;
}
};
// C-strings can only be encoded
template <>
struct convert<const char*> {
static Node encode(const char* rhs) { return Node(rhs); }
};
template <>
struct convert<char*> {
static Node encode(const char* rhs) { return Node(rhs); }
};
template <std::size_t N>
struct convert<char[N]> {
static Node encode(const char* rhs) { return Node(rhs); }
};
#if __cplusplus >= 201703L
template <>
struct convert<std::string_view> {
static Node encode(std::string_view rhs) { return Node(std::string(rhs)); }
static bool decode(const Node& node, std::string_view& rhs) {
if (!node.IsScalar())
return false;
rhs = node.Scalar();
return true;
}
};
#endif
template <>
struct convert<_Null> {
static Node encode(const _Null& /* rhs */) { return Node(); }
static bool decode(const Node& node, _Null& /* rhs */) {
return node.IsNull();
}
};
namespace conversion {
template <typename T>
typename std::enable_if< std::is_floating_point<T>::value, void>::type
inner_encode(const T& rhs, std::stringstream& stream){
if (std::isnan(rhs)) {
stream << ".nan";
} else if (std::isinf(rhs)) {
if (std::signbit(rhs)) {
stream << "-.inf";
} else {
stream << ".inf";
}
} else {
stream << rhs;
}
}
template <typename T>
typename std::enable_if<!std::is_floating_point<T>::value, void>::type
inner_encode(const T& rhs, std::stringstream& stream){
stream << rhs;
}
template <typename T>
typename std::enable_if<(std::is_same<T, unsigned char>::value ||
std::is_same<T, signed char>::value), bool>::type
ConvertStreamTo(std::stringstream& stream, T& rhs) {
int num;
if ((stream >> std::noskipws >> num) && (stream >> std::ws).eof()) {
if (num >= (std::numeric_limits<T>::min)() &&
num <= (std::numeric_limits<T>::max)()) {
rhs = static_cast<T>(num);
return true;
}
}
return false;
}
template <typename T>
typename std::enable_if<!(std::is_same<T, unsigned char>::value ||
std::is_same<T, signed char>::value), bool>::type
ConvertStreamTo(std::stringstream& stream, T& rhs) {
if ((stream >> std::noskipws >> rhs) && (stream >> std::ws).eof()) {
return true;
}
return false;
}
}
#define YAML_DEFINE_CONVERT_STREAMABLE(type, negative_op) \
template <> \
struct convert<type> { \
\
static Node encode(const type& rhs) { \
std::stringstream stream; \
stream.precision(std::numeric_limits<type>::max_digits10); \
conversion::inner_encode(rhs, stream); \
return Node(stream.str()); \
} \
\
static bool decode(const Node& node, type& rhs) { \
if (node.Type() != NodeType::Scalar) { \
return false; \
} \
const std::string& input = node.Scalar(); \
std::stringstream stream(input); \
stream.unsetf(std::ios::dec); \
if ((stream.peek() == '-') && std::is_unsigned<type>::value) { \
return false; \
} \
if (conversion::ConvertStreamTo(stream, rhs)) { \
return true; \
} \
if (std::numeric_limits<type>::has_infinity) { \
if (conversion::IsInfinity(input)) { \
rhs = std::numeric_limits<type>::infinity(); \
return true; \
} else if (conversion::IsNegativeInfinity(input)) { \
rhs = negative_op std::numeric_limits<type>::infinity(); \
return true; \
} \
} \
\
if (std::numeric_limits<type>::has_quiet_NaN) { \
if (conversion::IsNaN(input)) { \
rhs = std::numeric_limits<type>::quiet_NaN(); \
return true; \
} \
} \
\
return false; \
} \
}
#define YAML_DEFINE_CONVERT_STREAMABLE_SIGNED(type) \
YAML_DEFINE_CONVERT_STREAMABLE(type, -)
#define YAML_DEFINE_CONVERT_STREAMABLE_UNSIGNED(type) \
YAML_DEFINE_CONVERT_STREAMABLE(type, +)
YAML_DEFINE_CONVERT_STREAMABLE_SIGNED(int);
YAML_DEFINE_CONVERT_STREAMABLE_SIGNED(short);
YAML_DEFINE_CONVERT_STREAMABLE_SIGNED(long);
YAML_DEFINE_CONVERT_STREAMABLE_SIGNED(long long);
YAML_DEFINE_CONVERT_STREAMABLE_UNSIGNED(unsigned);
YAML_DEFINE_CONVERT_STREAMABLE_UNSIGNED(unsigned short);
YAML_DEFINE_CONVERT_STREAMABLE_UNSIGNED(unsigned long);
YAML_DEFINE_CONVERT_STREAMABLE_UNSIGNED(unsigned long long);
YAML_DEFINE_CONVERT_STREAMABLE_SIGNED(char);
YAML_DEFINE_CONVERT_STREAMABLE_SIGNED(signed char);
YAML_DEFINE_CONVERT_STREAMABLE_UNSIGNED(unsigned char);
YAML_DEFINE_CONVERT_STREAMABLE_SIGNED(float);
YAML_DEFINE_CONVERT_STREAMABLE_SIGNED(double);
YAML_DEFINE_CONVERT_STREAMABLE_SIGNED(long double);
#undef YAML_DEFINE_CONVERT_STREAMABLE_SIGNED
#undef YAML_DEFINE_CONVERT_STREAMABLE_UNSIGNED
#undef YAML_DEFINE_CONVERT_STREAMABLE
// bool
template <>
struct convert<bool> {
static Node encode(bool rhs) { return rhs ? Node("true") : Node("false"); }
YAML_CPP_API static bool decode(const Node& node, bool& rhs);
};
// std::map
template <typename K, typename V, typename C, typename A>
struct convert<std::map<K, V, C, A>> {
static Node encode(const std::map<K, V, C, A>& rhs) {
Node node(NodeType::Map);
for (const auto& element : rhs)
node.force_insert(element.first, element.second);
return node;
}
static bool decode(const Node& node, std::map<K, V, C, A>& rhs) {
if (!node.IsMap())
return false;
rhs.clear();
for (const auto& element : node)
#if defined(__GNUC__) && __GNUC__ < 4
// workaround for GCC 3:
rhs[element.first.template as<K>()] = element.second.template as<V>();
#else
rhs[element.first.as<K>()] = element.second.as<V>();
#endif
return true;
}
};
// std::unordered_map
template <typename K, typename V, typename H, typename P, typename A>
struct convert<std::unordered_map<K, V, H, P, A>> {
static Node encode(const std::unordered_map<K, V, H, P, A>& rhs) {
Node node(NodeType::Map);
for (const auto& element : rhs)
node.force_insert(element.first, element.second);
return node;
}
static bool decode(const Node& node, std::unordered_map<K, V, H, P, A>& rhs) {
if (!node.IsMap())
return false;
rhs.clear();
for (const auto& element : node)
#if defined(__GNUC__) && __GNUC__ < 4
// workaround for GCC 3:
rhs[element.first.template as<K>()] = element.second.template as<V>();
#else
rhs[element.first.as<K>()] = element.second.as<V>();
#endif
return true;
}
};
// std::vector
template <typename T, typename A>
struct convert<std::vector<T, A>> {
static Node encode(const std::vector<T, A>& rhs) {
Node node(NodeType::Sequence);
for (const auto& element : rhs)
node.push_back(element);
return node;
}
static bool decode(const Node& node, std::vector<T, A>& rhs) {
if (!node.IsSequence())
return false;
rhs.clear();
for (const auto& element : node)
#if defined(__GNUC__) && __GNUC__ < 4
// workaround for GCC 3:
rhs.push_back(element.template as<T>());
#else
rhs.push_back(element.as<T>());
#endif
return true;
}
};
// std::list
template <typename T, typename A>
struct convert<std::list<T,A>> {
static Node encode(const std::list<T,A>& rhs) {
Node node(NodeType::Sequence);
for (const auto& element : rhs)
node.push_back(element);
return node;
}
static bool decode(const Node& node, std::list<T,A>& rhs) {
if (!node.IsSequence())
return false;
rhs.clear();
for (const auto& element : node)
#if defined(__GNUC__) && __GNUC__ < 4
// workaround for GCC 3:
rhs.push_back(element.template as<T>());
#else
rhs.push_back(element.as<T>());
#endif
return true;
}
};
// std::array
template <typename T, std::size_t N>
struct convert<std::array<T, N>> {
static Node encode(const std::array<T, N>& rhs) {
Node node(NodeType::Sequence);
for (const auto& element : rhs) {
node.push_back(element);
}
return node;
}
static bool decode(const Node& node, std::array<T, N>& rhs) {
if (!isNodeValid(node)) {
return false;
}
for (auto i = 0u; i < node.size(); ++i) {
#if defined(__GNUC__) && __GNUC__ < 4
// workaround for GCC 3:
rhs[i] = node[i].template as<T>();
#else
rhs[i] = node[i].as<T>();
#endif
}
return true;
}
private:
static bool isNodeValid(const Node& node) {
return node.IsSequence() && node.size() == N;
}
};
// std::valarray
template <typename T>
struct convert<std::valarray<T>> {
static Node encode(const std::valarray<T>& rhs) {
Node node(NodeType::Sequence);
for (const auto& element : rhs) {
node.push_back(element);
}
return node;
}
static bool decode(const Node& node, std::valarray<T>& rhs) {
if (!node.IsSequence()) {
return false;
}
rhs.resize(node.size());
for (auto i = 0u; i < node.size(); ++i) {
#if defined(__GNUC__) && __GNUC__ < 4
// workaround for GCC 3:
rhs[i] = node[i].template as<T>();
#else
rhs[i] = node[i].as<T>();
#endif
}
return true;
}
};
// std::pair
template <typename T, typename U>
struct convert<std::pair<T, U>> {
static Node encode(const std::pair<T, U>& rhs) {
Node node(NodeType::Sequence);
node.push_back(rhs.first);
node.push_back(rhs.second);
return node;
}
static bool decode(const Node& node, std::pair<T, U>& rhs) {
if (!node.IsSequence())
return false;
if (node.size() != 2)
return false;
#if defined(__GNUC__) && __GNUC__ < 4
// workaround for GCC 3:
rhs.first = node[0].template as<T>();
#else
rhs.first = node[0].as<T>();
#endif
#if defined(__GNUC__) && __GNUC__ < 4
// workaround for GCC 3:
rhs.second = node[1].template as<U>();
#else
rhs.second = node[1].as<U>();
#endif
return true;
}
};
// binary
template <>
struct convert<Binary> {
static Node encode(const Binary& rhs) {
return Node(EncodeBase64(rhs.data(), rhs.size()));
}
static bool decode(const Node& node, Binary& rhs) {
if (!node.IsScalar())
return false;
std::vector<unsigned char> data = DecodeBase64(node.Scalar());
if (data.empty() && !node.Scalar().empty())
return false;
rhs.swap(data);
return true;
}
};
}
#endif // NODE_CONVERT_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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