Replaced tinytoml with libconfig

1 files changed, 0 insertions, 1958 deletions

diff --git a/src/3rd-party/toml/toml.h b/src/3rd-party/toml/toml.h
deleted file mode 100644
index ec8c489..0000000
--- a/src/3rd-party/toml/toml.h
+++ /dev/null
@@ -1,1958 +0,0 @@
-#ifndef TINYTOML_H_
-#define TINYTOML_H_
-
-#include <algorithm>
-#include <cassert>
-#include <cctype>
-#include <chrono>
-#include <cmath>
-#include <cstdint>
-#include <cstdio>
-#include <ctime>
-#include <iomanip>
-#include <istream>
-#include <sstream>
-#include <stdexcept>
-#include <string>
-#include <map>
-#include <memory>
-#include <utility>
-#include <vector>
-
-namespace toml {
-
-// ----------------------------------------------------------------------
-// Declarations
-
-class Value;
-typedef std::chrono::system_clock::time_point Time;
-typedef std::vector<Value> Array;
-typedef std::map<std::string, Value> Table;
-
-namespace internal {
-template<typename T> struct call_traits_value {
-    typedef T return_type;
-};
-template<typename T> struct call_traits_ref {
-    typedef const T& return_type;
-};
-} // namespace internal
-
-template<typename T> struct call_traits;
-template<> struct call_traits<bool> : public internal::call_traits_value<bool> {};
-template<> struct call_traits<int> : public internal::call_traits_value<int> {};
-template<> struct call_traits<int64_t> : public internal::call_traits_value<int64_t> {};
-template<> struct call_traits<double> : public internal::call_traits_value<double> {};
-template<> struct call_traits<std::string> : public internal::call_traits_ref<std::string> {};
-template<> struct call_traits<Time> : public internal::call_traits_ref<Time> {};
-template<> struct call_traits<Array> : public internal::call_traits_ref<Array> {};
-template<> struct call_traits<Table> : public internal::call_traits_ref<Table> {};
-
-// A value is returned for std::vector<T>. Not reference.
-// This is because a fresh vector is made.
-template<typename T> struct call_traits<std::vector<T>> : public internal::call_traits_value<std::vector<T>> {};
-
-// Formatting flags
-enum FormatFlag {
-    FORMAT_NONE = 0,
-    FORMAT_INDENT = 1
-};
-
-class Value {
-public:
-    enum Type {
-        NULL_TYPE,
-        BOOL_TYPE,
-        INT_TYPE,
-        DOUBLE_TYPE,
-        STRING_TYPE,
-        TIME_TYPE,
-        ARRAY_TYPE,
-        TABLE_TYPE,
-    };
-
-    Value() : type_(NULL_TYPE), null_(nullptr) {}
-    Value(bool v) : type_(BOOL_TYPE), bool_(v) {}
-    Value(int v) : type_(INT_TYPE), int_(v) {}
-    Value(int64_t v) : type_(INT_TYPE), int_(v) {}
-    Value(double v) : type_(DOUBLE_TYPE), double_(v) {}
-    Value(const std::string& v) : type_(STRING_TYPE), string_(new std::string(v)) {}
-    Value(const char* v) : type_(STRING_TYPE), string_(new std::string(v)) {}
-    Value(const Time& v) : type_(TIME_TYPE), time_(new Time(v)) {}
-    Value(const Array& v) : type_(ARRAY_TYPE), array_(new Array(v)) {}
-    Value(const Table& v) : type_(TABLE_TYPE), table_(new Table(v)) {}
-    Value(std::string&& v) : type_(STRING_TYPE), string_(new std::string(std::move(v))) {}
-    Value(Array&& v) : type_(ARRAY_TYPE), array_(new Array(std::move(v))) {}
-    Value(Table&& v) : type_(TABLE_TYPE), table_(new Table(std::move(v))) {}
-
-    Value(const Value& v);
-    Value(Value&& v) noexcept;
-    Value& operator=(const Value& v);
-    Value& operator=(Value&& v) noexcept;
-
-    // Guards from unexpected Value construction.
-    // Someone might use a value like this:
-    //   toml::Value v = x->find("foo");
-    // But this is wrong. Without this constructor,
-    // value will be unexpectedly initialized with bool.
-    Value(const void* v) = delete;
-    ~Value();
-
-    // Retruns Value size.
-    // 0 for invalid value.
-    // The number of inner elements for array or table.
-    // 1 for other types.
-    size_t size() const;
-    bool empty() const;
-    Type type() const { return type_; }
-
-    bool valid() const { return type_ != NULL_TYPE; }
-    template<typename T> bool is() const;
-    template<typename T> typename call_traits<T>::return_type as() const;
-
-    friend bool operator==(const Value& lhs, const Value& rhs);
-    friend bool operator!=(const Value& lhs, const Value& rhs) { return !(lhs == rhs); }
-
-    // ----------------------------------------------------------------------
-    // For integer/floating value
-
-    // Returns true if the value is int or double.
-    bool isNumber() const;
-    // Returns number. Convert to double.
-    double asNumber() const;
-
-    // ----------------------------------------------------------------------
-    // For Time value
-
-    // Converts to time_t if the internal value is Time.
-    // We don't have as<std::time_t>(). Since time_t is basically signed long,
-    // it's something like a method to converting to (normal) integer.
-    std::time_t as_time_t() const;
-
-    // ----------------------------------------------------------------------
-    // For Table value
-    template<typename T> typename call_traits<T>::return_type get(const std::string&) const;
-    Value* set(const std::string& key, const Value& v);
-    // Finds a Value with |key|. |key| can contain '.'
-    // Note: if you would like to find a child value only, you need to use findChild.
-    const Value* find(const std::string& key) const;
-    Value* find(const std::string& key);
-    bool has(const std::string& key) const { return find(key) != nullptr; }
-    bool erase(const std::string& key);
-
-    Value& operator[](const std::string& key);
-
-    // Merge table. Returns true if succeeded. Otherwise, |this| might be corrupted.
-    // When the same key exists, it will be overwritten.
-    bool merge(const Value&);
-
-    // Finds a value with |key|. It searches only children.
-    Value* findChild(const std::string& key);
-    const Value* findChild(const std::string& key) const;
-    // Sets a value, and returns the pointer to the created value.
-    // When the value having the same key exists, it will be overwritten.
-    Value* setChild(const std::string& key, const Value& v);
-    Value* setChild(const std::string& key, Value&& v);
-    bool eraseChild(const std::string& key);
-
-    // ----------------------------------------------------------------------
-    // For Array value
-
-    template<typename T> typename call_traits<T>::return_type get(size_t index) const;
-    const Value* find(size_t index) const;
-    Value* find(size_t index);
-    Value* push(const Value& v);
-    Value* push(Value&& v);
-
-    // ----------------------------------------------------------------------
-    // Others
-
-    // Writer.
-    static std::string spaces(int num);
-    static std::string escapeKey(const std::string& key);
-
-    void write(std::ostream*, const std::string& keyPrefix = std::string(), int indent = -1) const;
-    void writeFormatted(std::ostream*, FormatFlag flags) const;
-
-    friend std::ostream& operator<<(std::ostream&, const Value&);
-
-private:
-    static const char* typeToString(Type);
-
-    template<typename T> void assureType() const;
-    Value* ensureValue(const std::string& key);
-
-    template<typename T> struct ValueConverter;
-
-    Type type_;
-    union {
-        void* null_;
-        bool bool_;
-        int64_t int_;
-        double double_;
-        std::string* string_;
-        Time* time_;
-        Array* array_;
-        Table* table_;
-    };
-
-    template<typename T> friend struct ValueConverter;
-};
-
-// parse() returns ParseResult.
-struct ParseResult {
-    ParseResult(toml::Value v, std::string er) :
-        value(std::move(v)),
-        errorReason(std::move(er)) {}
-
-    bool valid() const { return value.valid(); }
-
-    toml::Value value;
-    std::string errorReason;
-};
-
-// Parses from std::istream.
-ParseResult parse(std::istream&);
-
-// ----------------------------------------------------------------------
-// Declarations for Implementations
-//   You don't need to understand the below to use this library.
-
-#if defined(_WIN32)
-// Windows does not have timegm but have _mkgmtime.
-inline time_t timegm(std::tm* timeptr)
-{
-    return _mkgmtime(timeptr);
-}
-#endif
-#if defined(_MSC_VER)
-// Visual studio doesn't define gmtime_r, but mingw does
-inline std::tm* gmtime_r(const time_t* timer, std::tm* result)
-{
-    gmtime_s(result, timer);
-    return result;
-}
-#endif
-
-namespace internal {
-
-enum class TokenType {
-    ERROR,
-    END_OF_FILE,
-    END_OF_LINE,
-    IDENT,
-    STRING,
-    MULTILINE_STRING,
-    BOOL,
-    INT,
-    DOUBLE,
-    TIME,
-    COMMA,
-    DOT,
-    EQUAL,
-    LBRACKET,
-    RBRACKET,
-    LBRACE,
-    RBRACE,
-};
-
-class Token {
-public:
-    explicit Token(TokenType type) : type_(type) {}
-    Token(TokenType type, const std::string& v) : type_(type), str_value_(v) {}
-    Token(TokenType type, bool v) : type_(type), int_value_(v) {}
-    Token(TokenType type, std::int64_t v) : type_(type), int_value_(v) {}
-    Token(TokenType type, double v) : type_(type), double_value_(v) {}
-    Token(TokenType type, std::chrono::system_clock::time_point tp) : type_(type), time_value_(tp) {}
-
-    TokenType type() const { return type_; }
-    const std::string& strValue() const { return str_value_; }
-    bool boolValue() const { return int_value_ != 0; }
-    std::int64_t intValue() const { return int_value_; }
-    double doubleValue() const { return double_value_; }
-    std::chrono::system_clock::time_point timeValue() const { return time_value_; }
-
-private:
-    TokenType type_;
-    std::string str_value_;
-    std::int64_t int_value_;
-    double double_value_;
-    std::chrono::system_clock::time_point time_value_;
-};
-
-class Lexer {
-public:
-    explicit Lexer(std::istream& is) : is_(is), lineNo_(1) {}
-
-    Token nextKeyToken();
-    Token nextValueToken();
-
-    int lineNo() const { return lineNo_; }
-
-private:
-    bool current(char* c);
-    void next();
-    bool consume(char c);
-
-    Token nextToken(bool isValueToken);
-
-    void skipUntilNewLine();
-
-    Token nextStringDoubleQuote();
-    Token nextStringSingleQuote();
-
-    Token nextKey();
-    Token nextValue();
-
-    Token parseAsTime(const std::string&);
-
-    std::istream& is_;
-    int lineNo_;
-};
-
-class Parser {
-public:
-    explicit Parser(std::istream& is) : lexer_(is), token_(TokenType::ERROR) { nextKey(); }
-
-    // Parses. If failed, value should be invalid value.
-    // You can get the error by calling errorReason().
-    Value parse();
-    const std::string& errorReason();
-
-private:
-    const Token& token() const { return token_; }
-    void nextKey() { token_ = lexer_.nextKeyToken(); }
-    void nextValue() { token_ = lexer_.nextValueToken(); }
-
-    void skipForKey();
-    void skipForValue();
-
-    bool consumeForKey(TokenType);
-    bool consumeForValue(TokenType);
-    bool consumeEOLorEOFForKey();
-
-    Value* parseGroupKey(Value* root);
-
-    bool parseKeyValue(Value*);
-    bool parseKey(std::string*);
-    bool parseValue(Value*);
-    bool parseBool(Value*);
-    bool parseNumber(Value*);
-    bool parseArray(Value*);
-    bool parseInlineTable(Value*);
-
-    void addError(const std::string& reason);
-
-    Lexer lexer_;
-    Token token_;
-    std::string errorReason_;
-};
-
-} // namespace internal
-
-// ----------------------------------------------------------------------
-// Implementations
-
-inline ParseResult parse(std::istream& is)
-{
-    internal::Parser parser(is);
-    toml::Value v = parser.parse();
-
-    if (v.valid())
-        return ParseResult(std::move(v), std::string());
-
-    return ParseResult(std::move(v), std::move(parser.errorReason()));
-}
-
-inline std::string format(std::stringstream& ss)
-{
-    return ss.str();
-}
-
-template<typename T, typename... Args>
-std::string format(std::stringstream& ss, T&& t, Args&&... args)
-{
-    ss << std::forward<T>(t);
-    return format(ss, std::forward<Args>(args)...);
-}
-
-template<typename... Args>
-#if defined(_MSC_VER)
-__declspec(noreturn)
-#else
-[[noreturn]]
-#endif
-void failwith(Args&&... args)
-{
-    std::stringstream ss;
-    throw std::runtime_error(format(ss, std::forward<Args>(args)...));
-}
-
-namespace internal {
-
-inline std::string removeDelimiter(const std::string& s)
-{
-    std::string r;
-    for (char c : s) {
-        if (c == '_')
-            continue;
-        r += c;
-    }
-    return r;
-}
-
-inline std::string unescape(const std::string& codepoint)
-{
-    std::uint32_t x;
-    std::uint8_t buf[8];
-    std::stringstream ss(codepoint);
-
-    ss >> std::hex >> x;
-
-    if (x <= 0x7FUL) {
-        // 0xxxxxxx
-        buf[0] = 0x00 | ((x >> 0) & 0x7F);
-        buf[1] = '\0';
-    } else if (x <= 0x7FFUL) {
-        // 110yyyyx 10xxxxxx
-        buf[0] = 0xC0 | ((x >> 6) & 0xDF);
-        buf[1] = 0x80 | ((x >> 0) & 0xBF);
-        buf[2] = '\0';
-    } else if (x <= 0xFFFFUL) {
-        // 1110yyyy 10yxxxxx 10xxxxxx
-        buf[0] = 0xE0 | ((x >> 12) & 0xEF);
-        buf[1] = 0x80 | ((x >> 6) & 0xBF);
-        buf[2] = 0x80 | ((x >> 0) & 0xBF);
-        buf[3] = '\0';
-    } else if (x <= 0x10FFFFUL) {
-        // 11110yyy 10yyxxxx 10xxxxxx 10xxxxxx
-        buf[0] = 0xF0 | ((x >> 18) & 0xF7);
-        buf[1] = 0x80 | ((x >> 12) & 0xBF);
-        buf[2] = 0x80 | ((x >> 6) & 0xBF);
-        buf[3] = 0x80 | ((x >> 0) & 0xBF);
-        buf[4] = '\0';
-    } else {
-        buf[0] = '\0';
-    }
-
-    return reinterpret_cast<char*>(buf);
-}
-
-// Returns true if |s| is integer.
-// [+-]?\d+(_\d+)*
-inline bool isInteger(const std::string& s)
-{
-    if (s.empty())
-        return false;
-
-    std::string::size_type p = 0;
-    if (s[p] == '+' || s[p] == '-')
-        ++p;
-
-    while (p < s.size() && '0' <= s[p] && s[p] <= '9') {
-        ++p;
-        if (p < s.size() && s[p] == '_') {
-            ++p;
-            if (!(p < s.size() && '0' <= s[p] && s[p] <= '9'))
-                return false;
-        }
-    }
-
-    return p == s.size();
-}
-
-// Returns true if |s| is double.
-// [+-]? (\d+(_\d+)*)? (\.\d+(_\d+)*)? ([eE] [+-]? \d+(_\d+)*)?
-//       1-----------  2-------------  3----------------------
-// 2 or (1 and 3) should exist.
-inline bool isDouble(const std::string& s)
-{
-    if (s.empty())
-        return false;
-
-    std::string::size_type p = 0;
-    if (s[p] == '+' || s[p] == '-')
-        ++p;
-
-    bool ok = false;
-    while (p < s.size() && '0' <= s[p] && s[p] <= '9') {
-        ++p;
-        ok = true;
-
-        if (p < s.size() && s[p] == '_') {
-            ++p;
-            if (!(p < s.size() && '0' <= s[p] && s[p] <= '9'))
-                return false;
-        }
-    }
-
-    if (p < s.size() && s[p] == '.')
-        ++p;
-
-    while (p < s.size() && '0' <= s[p] && s[p] <= '9') {
-        ++p;
-        ok = true;
-
-        if (p < s.size() && s[p] == '_') {
-            ++p;
-            if (!(p < s.size() && '0' <= s[p] && s[p] <= '9'))
-                return false;
-        }
-    }
-
-    if (!ok)
-        return false;
-
-    ok = false;
-    if (p < s.size() && (s[p] == 'e' || s[p] == 'E')) {
-        ++p;
-        if (p < s.size() && (s[p] == '+' || s[p] == '-'))
-            ++p;
-        while (p < s.size() && '0' <= s[p] && s[p] <= '9') {
-            ++p;
-            ok = true;
-
-            if (p < s.size() && s[p] == '_') {
-                ++p;
-                if (!(p < s.size() && '0' <= s[p] && s[p] <= '9'))
-                    return false;
-            }
-        }
-        if (!ok)
-            return false;
-    }
-
-    return p == s.size();
-}
-
-// static
-inline std::string escapeString(const std::string& s)
-{
-    std::stringstream ss;
-    for (size_t i = 0; i < s.size(); ++i) {
-        switch (s[i]) {
-        case '\n': ss << "\\n"; break;
-        case '\r': ss << "\\r"; break;
-        case '\t': ss << "\\t"; break;
-        case '\"': ss << "\\\""; break;
-        case '\'': ss << "\\\'"; break;
-        case '\\': ss << "\\\\"; break;
-        default: ss << s[i]; break;
-        }
-    }
-
-    return ss.str();
-}
-
-} // namespace internal
-
-// ----------------------------------------------------------------------
-// Lexer
-
-namespace internal {
-
-inline bool Lexer::current(char* c)
-{
-    int x = is_.peek();
-    if (x == EOF)
-        return false;
-    *c = static_cast<char>(x);
-    return true;
-}
-
-inline void Lexer::next()
-{
-    int x = is_.get();
-    if (x == '\n')
-        ++lineNo_;
-}
-
-inline bool Lexer::consume(char c)
-{
-    char x;
-    if (!current(&x))
-        return false;
-    if (x != c)
-        return false;
-    next();
-    return true;
-}
-
-inline void Lexer::skipUntilNewLine()
-{
-    char c;
-    while (current(&c)) {
-        if (c == '\n')
-            return;
-        next();
-    }
-}
-
-inline Token Lexer::nextStringDoubleQuote()
-{
-    if (!consume('"'))
-        return Token(TokenType::ERROR, std::string("string didn't start with '\"'"));
-
-    std::string s;
-    char c;
-    bool multiline = false;
-
-    if (current(&c) && c == '"') {
-        next();
-        if (!current(&c) || c != '"') {
-            // OK. It's empty string.
-            return Token(TokenType::STRING, std::string());
-        }
-
-        next();
-        // raw string literal started.
-        // Newline just after """ should be ignored.
-        while (current(&c) && (c == ' ' || c == '\t'))
-            next();
-        if (current(&c) && c == '\n')
-            next();
-        multiline = true;
-    }
-
-    while (current(&c)) {
-        next();
-        if (c == '\\') {
-            if (!current(&c))
-                return Token(TokenType::ERROR, std::string("string has unknown escape sequence"));
-            next();
-            switch (c) {
-            case 't': c = '\t'; break;
-            case 'n': c = '\n'; break;
-            case 'r': c = '\r'; break;
-            case 'u':
-            case 'U': {
-                int size = c == 'u' ? 4 : 8;
-                std::string codepoint;
-                for (int i = 0; i < size; ++i) {
-                  if (current(&c) && (('0' <= c && c <= '9') || ('A' <= c && c <= 'F') || ('a' <= c && c <= 'f'))) {
-                    codepoint += c;
-                    next();
-                  } else {
-                    return Token(TokenType::ERROR, std::string("string has unknown escape sequence"));
-                  }
-                }
-                s += unescape(codepoint);
-                continue;
-            }
-            case '"': c = '"'; break;
-            case '\'': c = '\''; break;
-            case '\\': c = '\\'; break;
-            case '\n':
-                while (current(&c) && (c == ' ' || c == '\t' || c == '\r' || c == '\n')) {
-                    next();
-                }
-                continue;
-            default:
-                return Token(TokenType::ERROR, std::string("string has unknown escape sequence"));
-            }
-        } else if (c == '"') {
-            if (multiline) {
-                if (current(&c) && c == '"') {
-                    next();
-                    if (current(&c) && c == '"') {
-                        next();
-                        return Token(TokenType::MULTILINE_STRING, s);
-                    } else {
-                        s += '"';
-                        s += '"';
-                        continue;
-                    }
-                } else {
-                    s += '"';
-                    continue;
-                }
-            } else {
-                return Token(TokenType::STRING, s);
-            }
-        }
-
-        s += c;
-    }
-
-    return Token(TokenType::ERROR, std::string("string didn't end"));
-}
-
-inline Token Lexer::nextStringSingleQuote()
-{
-    if (!consume('\''))
-        return Token(TokenType::ERROR, std::string("string didn't start with '\''?"));
-
-    std::string s;
-    char c;
-
-    if (current(&c) && c == '\'') {
-        next();
-        if (!current(&c) || c != '\'') {
-            // OK. It's empty string.
-            return Token(TokenType::STRING, std::string());
-        }
-        next();
-        // raw string literal started.
-        // Newline just after """ should be ignored.
-        if (current(&c) && c == '\n')
-            next();
-
-        while (current(&c)) {
-            if (c == '\'') {
-                next();
-                if (current(&c) && c == '\'') {
-                    next();
-                    if (current(&c) && c == '\'') {
-                        next();
-                        return Token(TokenType::MULTILINE_STRING, s);
-                    } else {
-                        s += '\'';
-                        s += '\'';
-                        continue;
-                    }
-                } else {
-                    s += '\'';
-                    continue;
-                }
-            }
-
-            next();
-            s += c;
-            continue;
-        }
-
-        return Token(TokenType::ERROR, std::string("string didn't end with '\'\'\'' ?"));
-    }
-
-    while (current(&c)) {
-        next();
-        if (c == '\'') {
-            return Token(TokenType::STRING, s);
-        }
-
-        s += c;
-    }
-
-    return Token(TokenType::ERROR, std::string("string didn't end with '\''?"));
-}
-
-inline Token Lexer::nextKey()
-{
-    std::string s;
-    char c;
-    while (current(&c) && (isalnum(c) || c == '_' || c == '-')) {
-        s += c;
-        next();
-    }
-
-    if (s.empty())
-        return Token(TokenType::ERROR, std::string("Unknown key format"));
-
-    return Token(TokenType::IDENT, s);
-}
-
-inline Token Lexer::nextValue()
-{
-    std::string s;
-    char c;
-
-    if (current(&c) && isalpha(c)) {
-        s += c;
-        next();
-        while (current(&c) && isalpha(c)) {
-            s += c;
-            next();
-        }
-
-        if (s == "true")
-            return Token(TokenType::BOOL, true);
-        if (s == "false")
-            return Token(TokenType::BOOL, false);
-        return Token(TokenType::ERROR, std::string("Unknown ident: ") + s);
-    }
-
-    while (current(&c) && (('0' <= c && c <= '9') || c == '.' || c == 'e' || c == 'E' ||
-                           c == 'T' || c == 'Z' || c == '_' || c == ':' || c == '-' || c == '+')) {
-        next();
-        s += c;
-    }
-
-    if (isInteger(s)) {
-        std::stringstream ss(removeDelimiter(s));
-        std::int64_t x;
-        ss >> x;
-        return Token(TokenType::INT, x);
-    }
-
-    if (isDouble(s)) {
-        std::stringstream ss(removeDelimiter(s));
-        double d;
-        ss >> d;
-        return Token(TokenType::DOUBLE, d);
-    }
-
-    return parseAsTime(s);
-}
-
-inline Token Lexer::parseAsTime(const std::string& str)
-{
-    const char* s = str.c_str();
-
-    int n;
-    int YYYY, MM, DD;
-    if (sscanf(s, "%d-%d-%d%n", &YYYY, &MM, &DD, &n) != 3)
-        return Token(TokenType::ERROR, std::string("Invalid token"));
-
-    if (s[n] == '\0') {
-        std::tm t;
-        t.tm_sec = 0;
-        t.tm_min = 0;
-        t.tm_hour = 0;
-        t.tm_mday = DD;
-        t.tm_mon = MM - 1;
-        t.tm_year = YYYY - 1900;
-        auto tp = std::chrono::system_clock::from_time_t(timegm(&t));
-        return Token(TokenType::TIME, tp);
-    }
-
-    if (s[n] != 'T')
-        return Token(TokenType::ERROR, std::string("Invalid token"));
-
-    s = s + n + 1;
-
-    int hh, mm;
-    double ss; // double for fraction
-    if (sscanf(s, "%d:%d:%lf%n", &hh, &mm, &ss, &n) != 3)
-        return Token(TokenType::ERROR, std::string("Invalid token"));
-
-    std::tm t;
-    t.tm_sec = static_cast<int>(ss);
-    t.tm_min = mm;
-    t.tm_hour = hh;
-    t.tm_mday = DD;
-    t.tm_mon = MM - 1;
-    t.tm_year = YYYY - 1900;
-    auto tp = std::chrono::system_clock::from_time_t(timegm(&t));
-    ss -= static_cast<int>(ss);
-    // TODO(mayah): workaround GCC 4.9.3 on cygwin does not have std::round, but round().
-    tp += std::chrono::microseconds(static_cast<std::int64_t>(round(ss * 1000000)));
-
-    if (s[n] == '\0')
-        return Token(TokenType::TIME, tp);
-
-    if (s[n] == 'Z' && s[n + 1] == '\0')
-        return Token(TokenType::TIME, tp);
-
-    s = s + n;
-    // offset
-    // [+/-]%d:%d
-    char pn;
-    int oh, om;
-    if (sscanf(s, "%c%d:%d", &pn, &oh, &om) != 3)
-        return Token(TokenType::ERROR, std::string("Invalid token"));
-
-    if (pn != '+' && pn != '-')
-        return Token(TokenType::ERROR, std::string("Invalid token"));
-
-    if (pn == '+') {
-        tp -= std::chrono::hours(oh);
-        tp -= std::chrono::minutes(om);
-    } else {
-        tp += std::chrono::hours(oh);
-        tp += std::chrono::minutes(om);
-    }
-
-    return Token(TokenType::TIME, tp);
-}
-
-inline Token Lexer::nextKeyToken()
-{
-    return nextToken(false);
-}
-
-inline Token Lexer::nextValueToken()
-{
-    return nextToken(true);
-}
-
-inline Token Lexer::nextToken(bool isValueToken)
-{
-    char c;
-    while (current(&c)) {
-        if (c == ' ' || c == '\t' || c == '\r') {
-            next();
-            continue;
-        }
-
-        if (c == '#') {
-            skipUntilNewLine();
-            continue;
-        }
-
-        switch (c) {
-        case '\n':
-            next();
-            return Token(TokenType::END_OF_LINE);
-        case '=':
-            next();
-            return Token(TokenType::EQUAL);
-        case '{':
-            next();
-            return Token(TokenType::LBRACE);
-        case '}':
-            next();
-            return Token(TokenType::RBRACE);
-        case '[':
-            next();
-            return Token(TokenType::LBRACKET);
-        case ']':
-            next();
-            return Token(TokenType::RBRACKET);
-        case ',':
-            next();
-            return Token(TokenType::COMMA);
-        case '.':
-            next();
-            return Token(TokenType::DOT);
-        case '\"':
-            return nextStringDoubleQuote();
-        case '\'':
-            return nextStringSingleQuote();
-        default:
-            if (isValueToken) {
-                return nextValue();
-            } else {
-                return nextKey();
-            }
-        }
-    }
-
-    return Token(TokenType::END_OF_FILE);
-}
-
-} // namespace internal
-
-// ----------------------------------------------------------------------
-
-// static
-inline const char* Value::typeToString(Value::Type type)
-{
-    switch (type) {
-    case NULL_TYPE:   return "null";
-    case BOOL_TYPE:   return "bool";
-    case INT_TYPE:    return "int";
-    case DOUBLE_TYPE: return "double";
-    case STRING_TYPE: return "string";
-    case TIME_TYPE:   return "time";
-    case ARRAY_TYPE:  return "array";
-    case TABLE_TYPE:  return "table";
-    default:          return "unknown";
-    }
-}
-
-inline Value::Value(const Value& v) :
-    type_(v.type_)
-{
-    switch (v.type_) {
-    case NULL_TYPE: null_ = v.null_; break;
-    case BOOL_TYPE: bool_ = v.bool_; break;
-    case INT_TYPE: int_ = v.int_; break;
-    case DOUBLE_TYPE: double_ = v.double_; break;
-    case STRING_TYPE: string_ = new std::string(*v.string_); break;
-    case TIME_TYPE: time_ = new Time(*v.time_); break;
-    case ARRAY_TYPE: array_ = new Array(*v.array_); break;
-    case TABLE_TYPE: table_ = new Table(*v.table_); break;
-    default:
-        assert(false);
-        type_ = NULL_TYPE;
-        null_ = nullptr;
-    }
-}
-
-inline Value::Value(Value&& v) noexcept :
-    type_(v.type_)
-{
-    switch (v.type_) {
-    case NULL_TYPE: null_ = v.null_; break;
-    case BOOL_TYPE: bool_ = v.bool_; break;
-    case INT_TYPE: int_ = v.int_; break;
-    case DOUBLE_TYPE: double_ = v.double_; break;
-    case STRING_TYPE: string_ = v.string_; break;
-    case TIME_TYPE: time_ = v.time_; break;
-    case ARRAY_TYPE: array_ = v.array_; break;
-    case TABLE_TYPE: table_ = v.table_; break;
-    default:
-        assert(false);
-        type_ = NULL_TYPE;
-        null_ = nullptr;
-    }
-
-    v.type_ = NULL_TYPE;
-    v.null_ = nullptr;
-}
-
-inline Value& Value::operator=(const Value& v)
-{
-    if (this == &v)
-        return *this;
-
-    this->~Value();
-
-    type_ = v.type_;
-    switch (v.type_) {
-    case NULL_TYPE: null_ = v.null_; break;
-    case BOOL_TYPE: bool_ = v.bool_; break;
-    case INT_TYPE: int_ = v.int_; break;
-    case DOUBLE_TYPE: double_ = v.double_; break;
-    case STRING_TYPE: string_ = new std::string(*v.string_); break;
-    case TIME_TYPE: time_ = new Time(*v.time_); break;
-    case ARRAY_TYPE: array_ = new Array(*v.array_); break;
-    case TABLE_TYPE: table_ = new Table(*v.table_); break;
-    default:
-        assert(false);
-        type_ = NULL_TYPE;
-        null_ = nullptr;
-    }
-
-    return *this;
-}
-
-inline Value& Value::operator=(Value&& v) noexcept
-{
-    if (this == &v)
-        return *this;
-
-    this->~Value();
-
-    type_ = v.type_;
-    switch (v.type_) {
-    case NULL_TYPE: null_ = v.null_; break;
-    case BOOL_TYPE: bool_ = v.bool_; break;
-    case INT_TYPE: int_ = v.int_; break;
-    case DOUBLE_TYPE: double_ = v.double_; break;
-    case STRING_TYPE: string_ = v.string_; break;
-    case TIME_TYPE: time_ = v.time_; break;
-    case ARRAY_TYPE: array_ = v.array_; break;
-    case TABLE_TYPE: table_ = v.table_; break;
-    default:
-        assert(false);
-        type_ = NULL_TYPE;
-        null_ = nullptr;
-    }
-
-    v.type_ = NULL_TYPE;
-    v.null_ = nullptr;
-    return *this;
-}
-
-inline Value::~Value()
-{
-    switch (type_) {
-    case STRING_TYPE:
-        delete string_;
-        break;
-    case TIME_TYPE:
-        delete time_;
-        break;
-    case ARRAY_TYPE:
-        delete array_;
-        break;
-    case TABLE_TYPE:
-        delete table_;
-        break;
-    default:
-        break;
-    }
-}
-
-inline size_t Value::size() const
-{
-    switch (type_) {
-    case NULL_TYPE:
-        return 0;
-    case ARRAY_TYPE:
-        return array_->size();
-    case TABLE_TYPE:
-        return table_->size();
-    default:
-        return 1;
-    }
-}
-
-inline bool Value::empty() const
-{
-    return size() == 0;
-}
-
-template<> struct Value::ValueConverter<bool>
-{
-    bool is(const Value& v) { return v.type() == Value::BOOL_TYPE; }
-    bool to(const Value& v) { v.assureType<bool>(); return v.bool_; }
-
-};
-template<> struct Value::ValueConverter<int64_t>
-{
-    bool is(const Value& v) { return v.type() == Value::INT_TYPE; }
-    int64_t to(const Value& v) { v.assureType<int64_t>(); return v.int_; }
-};
-template<> struct Value::ValueConverter<int>
-{
-    bool is(const Value& v) { return v.type() == Value::INT_TYPE; }
-    int to(const Value& v) { v.assureType<int>(); return static_cast<int>(v.int_); }
-};
-template<> struct Value::ValueConverter<double>
-{
-    bool is(const Value& v) { return v.type() == Value::DOUBLE_TYPE; }
-    double to(const Value& v) { v.assureType<double>(); return v.double_; }
-};
-template<> struct Value::ValueConverter<std::string>
-{
-    bool is(const Value& v) { return v.type() == Value::STRING_TYPE; }
-    const std::string& to(const Value& v) { v.assureType<std::string>(); return *v.string_; }
-};
-template<> struct Value::ValueConverter<Time>
-{
-    bool is(const Value& v) { return v.type() == Value::TIME_TYPE; }
-    const Time& to(const Value& v) { v.assureType<Time>(); return *v.time_; }
-};
-template<> struct Value::ValueConverter<Array>
-{
-    bool is(const Value& v) { return v.type() == Value::ARRAY_TYPE; }
-    const Array& to(const Value& v) { v.assureType<Array>(); return *v.array_; }
-};
-template<> struct Value::ValueConverter<Table>
-{
-    bool is(const Value& v) { return v.type() == Value::TABLE_TYPE; }
-    const Table& to(const Value& v) { v.assureType<Table>(); return *v.table_; }
-};
-
-template<typename T>
-struct Value::ValueConverter<std::vector<T>>
-{
-    bool is(const Value& v)
-    {
-        if (v.type() != Value::ARRAY_TYPE)
-            return false;
-        const Array& array = v.as<Array>();
-        if (array.empty())
-            return true;
-        return array.front().is<T>();
-    }
-
-    std::vector<T> to(const Value& v)
-    {
-        const Array& array = v.as<Array>();
-        if (array.empty())
-            return std::vector<T>();
-        array.front().assureType<T>();
-
-        std::vector<T> result;
-        for (const auto& element : array) {
-            result.push_back(element.as<T>());
-        }
-
-        return result;
-    }
-};
-
-namespace internal {
-template<typename T> inline const char* type_name();
-template<> inline const char* type_name<bool>() { return "bool"; }
-template<> inline const char* type_name<int>() { return "int"; }
-template<> inline const char* type_name<int64_t>() { return "int64_t"; }
-template<> inline const char* type_name<double>() { return "double"; }
-template<> inline const char* type_name<std::string>() { return "string"; }
-template<> inline const char* type_name<toml::Time>() { return "time"; }
-template<> inline const char* type_name<toml::Array>() { return "array"; }
-template<> inline const char* type_name<toml::Table>() { return "table"; }
-} // namespace internal
-
-template<typename T>
-inline void Value::assureType() const
-{
-    if (!is<T>())
-        failwith("type error: this value is ", typeToString(type_), " but ", internal::type_name<T>(), " was requested");
-}
-
-template<typename T>
-inline bool Value::is() const
-{
-    return ValueConverter<T>().is(*this);
-}
-
-template<typename T>
-inline typename call_traits<T>::return_type Value::as() const
-{
-    return ValueConverter<T>().to(*this);
-}
-
-inline bool Value::isNumber() const
-{
-    return is<int>() || is<double>();
-}
-
-inline double Value::asNumber() const
-{
-    if (is<int>())
-        return as<int>();
-    if (is<double>())
-        return as<double>();
-
-    failwith("type error: this value is ", typeToString(type_), " but number is requested");
-}
-
-inline std::time_t Value::as_time_t() const
-{
-    return std::chrono::system_clock::to_time_t(as<Time>());
-}
-
-inline std::string Value::spaces(int num)
-{
-    if (num <= 0)
-        return std::string();
-
-    return std::string(num, ' ');
-}
-
-inline std::string Value::escapeKey(const std::string& key)
-{
-    auto position = std::find_if(key.begin(), key.end(), [](char c) -> bool {
-        if (std::isalnum(c) || c == '_' || c == '-')
-            return false;
-        return true;
-    });
-
-    if (position != key.end()) {
-        std::string escaped = "\"";
-        for (const char& c : key) {
-            if (c == '\\' || c  == '"')
-                escaped += '\\';
-            escaped += c;
-        }
-        escaped += "\"";
-
-        return escaped;
-    }
-
-    return key;
-}
-
-inline void Value::write(std::ostream* os, const std::string& keyPrefix, int indent) const
-{
-    switch (type_) {
-    case NULL_TYPE:
-        failwith("null type value is not a valid value");
-        break;
-    case BOOL_TYPE:
-        (*os) << (bool_ ? "true" : "false");
-        break;
-    case INT_TYPE:
-        (*os) << int_;
-        break;
-    case DOUBLE_TYPE: {
-        (*os) << std::fixed << std::showpoint << double_;
-        break;
-    }
-    case STRING_TYPE:
-        (*os) << '"' << internal::escapeString(*string_) << '"';
-        break;
-    case TIME_TYPE: {
-        time_t tt = std::chrono::system_clock::to_time_t(*time_);
-        std::tm t;
-        gmtime_r(&tt, &t);
-        char buf[256];
-        sprintf(buf, "%04d-%02d-%02dT%02d:%02d:%02dZ", t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec);
-        (*os) << buf;
-        break;
-    }
-    case ARRAY_TYPE:
-        (*os) << '[';
-        for (size_t i = 0; i < array_->size(); ++i) {
-            if (i)
-                (*os) << ", ";
-            (*array_)[i].write(os, keyPrefix, -1);
-        }
-        (*os) << ']';
-        break;
-    case TABLE_TYPE:
-        for (const auto& kv : *table_) {
-            if (kv.second.is<Table>())
-                continue;
-            if (kv.second.is<Array>() && kv.second.size() > 0 && kv.second.find(0)->is<Table>())
-                continue;
-            (*os) << spaces(indent) << escapeKey(kv.first) << " = ";
-            kv.second.write(os, keyPrefix, indent >= 0 ? indent + 1 : indent);
-            (*os) << '\n';
-        }
-        for (const auto& kv : *table_) {
-            if (kv.second.is<Table>()) {
-                std::string key(keyPrefix);
-                if (!keyPrefix.empty())
-                    key += ".";
-                key += escapeKey(kv.first);
-                (*os) << "\n" << spaces(indent) << "[" << key << "]\n";
-                kv.second.write(os, key, indent >= 0 ? indent + 1 : indent);
-            }
-            if (kv.second.is<Array>() && kv.second.size() > 0 && kv.second.find(0)->is<Table>()) {
-                std::string key(keyPrefix);
-                if (!keyPrefix.empty())
-                    key += ".";
-                key += escapeKey(kv.first);
-                for (const auto& v : kv.second.as<Array>()) {
-                    (*os) << "\n" << spaces(indent) << "[[" << key << "]]\n";
-                    v.write(os, key, indent >= 0 ? indent + 1 : indent);
-                }
-            }
-        }
-        break;
-    default:
-        failwith("writing unknown type");
-        break;
-    }
-}
-
-inline void Value::writeFormatted(std::ostream* os, FormatFlag flags) const
-{
-    int indent = flags & FORMAT_INDENT ? 0 : -1;
-
-    write(os, std::string(), indent);
-}
-
-// static
-inline FormatFlag operator|(FormatFlag lhs, FormatFlag rhs)
-{
-    return static_cast<FormatFlag>(static_cast<int>(lhs) | static_cast<int>(rhs));
-}
-
-// static
-inline std::ostream& operator<<(std::ostream& os, const toml::Value& v)
-{
-    v.write(&os);
-    return os;
-}
-
-// static
-inline bool operator==(const Value& lhs, const Value& rhs)
-{
-    if (lhs.type() != rhs.type())
-        return false;
-
-    switch (lhs.type()) {
-    case Value::Type::NULL_TYPE:
-        return true;
-    case Value::Type::BOOL_TYPE:
-        return lhs.bool_ == rhs.bool_;
-    case Value::Type::INT_TYPE:
-        return lhs.int_ == rhs.int_;
-    case Value::Type::DOUBLE_TYPE:
-        return lhs.double_ == rhs.double_;
-    case Value::Type::STRING_TYPE:
-        return *lhs.string_ == *rhs.string_;
-    case Value::Type::TIME_TYPE:
-        return *lhs.time_ == *rhs.time_;
-    case Value::Type::ARRAY_TYPE:
-        return *lhs.array_ == *rhs.array_;
-    case Value::Type::TABLE_TYPE:
-        return *lhs.table_ == *rhs.table_;
-    default:
-        failwith("unknown type");
-    }
-}
-
-template<typename T>
-inline typename call_traits<T>::return_type Value::get(const std::string& key) const
-{
-    if (!is<Table>())
-        failwith("type must be table to do get(key).");
-
-    const Value* obj = find(key);
-    if (!obj)
-        failwith("key ", key, " was not found.");
-
-    return obj->as<T>();
-}
-
-inline const Value* Value::find(const std::string& key) const
-{
-    if (!is<Table>())
-        return nullptr;
-
-    std::istringstream ss(key);
-    internal::Lexer lexer(ss);
-
-    const Value* current = this;
-    while (true) {
-        internal::Token t = lexer.nextKeyToken();
-        if (!(t.type() == internal::TokenType::IDENT || t.type() == internal::TokenType::STRING))
-            return nullptr;
-
-        std::string part = t.strValue();
-        t = lexer.nextKeyToken();
-        if (t.type() == internal::TokenType::DOT) {
-            current = current->findChild(part);
-            if (!current || !current->is<Table>())
-                return nullptr;
-        } else if (t.type() == internal::TokenType::END_OF_FILE) {
-            return current->findChild(part);
-        } else {
-            return nullptr;
-        }
-    }
-}
-
-inline Value* Value::find(const std::string& key)
-{
-    return const_cast<Value*>(const_cast<const Value*>(this)->find(key));
-}
-
-inline bool Value::merge(const toml::Value& v)
-{
-    if (this == &v)
-        return true;
-    if (!is<Table>() || !v.is<Table>())
-        return false;
-
-    for (const auto& kv : *v.table_) {
-        if (Value* tmp = find(kv.first)) {
-            // If both are table, we merge them.
-            if (tmp->is<Table>() && kv.second.is<Table>()) {
-                if (!tmp->merge(kv.second))
-                    return false;
-            } else {
-                setChild(kv.first, kv.second);
-            }
-        } else {
-            setChild(kv.first, kv.second);
-        }
-    }
-
-    return true;
-}
-
-inline Value* Value::set(const std::string& key, const Value& v)
-{
-    Value* result = ensureValue(key);
-    *result = v;
-    return result;
-}
-
-inline Value* Value::setChild(const std::string& key, const Value& v)
-{
-    if (!valid())
-        *this = Value((Table()));
-
-    if (!is<Table>())
-        failwith("type must be table to do set(key, v).");
-
-    (*table_)[key] = v;
-    return &(*table_)[key];
-}
-
-inline Value* Value::setChild(const std::string& key, Value&& v)
-{
-    if (!valid())
-        *this = Value((Table()));
-
-    if (!is<Table>())
-        failwith("type must be table to do set(key, v).");
-
-    (*table_)[key] = std::move(v);
-    return &(*table_)[key];
-}
-
-inline bool Value::erase(const std::string& key)
-{
-    if (!is<Table>())
-        return false;
-
-    std::istringstream ss(key);
-    internal::Lexer lexer(ss);
-
-    Value* current = this;
-    while (true) {
-        internal::Token t = lexer.nextKeyToken();
-        if (!(t.type() == internal::TokenType::IDENT || t.type() == internal::TokenType::STRING))
-            return false;
-
-        std::string part = t.strValue();
-        t = lexer.nextKeyToken();
-        if (t.type() == internal::TokenType::DOT) {
-            current = current->findChild(part);
-            if (!current || !current->is<Table>())
-                return false;
-        } else if (t.type() == internal::TokenType::END_OF_FILE) {
-            return current->eraseChild(part);
-        } else {
-            return false;
-        }
-    }
-}
-
-inline bool Value::eraseChild(const std::string& key)
-{
-    if (!is<Table>())
-        failwith("type must be table to do erase(key).");
-
-    return table_->erase(key) > 0;
-}
-
-inline Value& Value::operator[](const std::string& key)
-{
-    if (!valid())
-        *this = Value((Table()));
-
-    if (Value* v = findChild(key))
-        return *v;
-
-    return *setChild(key, Value());
-}
-
-template<typename T>
-inline typename call_traits<T>::return_type Value::get(size_t index) const
-{
-    if (!is<Array>())
-        failwith("type must be array to do get(index).");
-
-    if (array_->size() <= index)
-        failwith("index out of bound");
-
-    return (*array_)[index].as<T>();
-}
-
-inline const Value* Value::find(size_t index) const
-{
-    if (!is<Array>())
-        return nullptr;
-    if (index < array_->size())
-        return &(*array_)[index];
-    return nullptr;
-}
-
-inline Value* Value::find(size_t index)
-{
-    return const_cast<Value*>(const_cast<const Value*>(this)->find(index));
-}
-
-inline Value* Value::push(const Value& v)
-{
-    if (!valid())
-        *this = Value((Array()));
-    else if (!is<Array>())
-        failwith("type must be array to do push(Value).");
-
-    array_->push_back(v);
-    return &array_->back();
-}
-
-inline Value* Value::push(Value&& v)
-{
-    if (!valid())
-        *this = Value((Array()));
-    else if (!is<Array>())
-        failwith("type must be array to do push(Value).");
-
-    array_->push_back(std::move(v));
-    return &array_->back();
-}
-
-inline Value* Value::ensureValue(const std::string& key)
-{
-    if (!valid())
-        *this = Value((Table()));
-    if (!is<Table>()) {
-        failwith("encountered non table value");
-    }
-
-    std::istringstream ss(key);
-    internal::Lexer lexer(ss);
-
-    Value* current = this;
-    while (true) {
-        internal::Token t = lexer.nextKeyToken();
-        if (!(t.type() == internal::TokenType::IDENT || t.type() == internal::TokenType::STRING)) {
-            failwith("invalid key");
-        }
-
-        std::string part = t.strValue();
-        t = lexer.nextKeyToken();
-        if (t.type() == internal::TokenType::DOT) {
-            if (Value* candidate = current->findChild(part)) {
-                if (!candidate->is<Table>())
-                    failwith("encountered non table value");
-
-                current = candidate;
-            } else {
-                current = current->setChild(part, Table());
-            }
-        } else if (t.type() == internal::TokenType::END_OF_FILE) {
-            if (Value* v = current->findChild(part))
-                return v;
-            return current->setChild(part, Value());
-        } else {
-            failwith("invalid key");
-        }
-    }
-}
-
-inline Value* Value::findChild(const std::string& key)
-{
-    assert(is<Table>());
-
-    auto it = table_->find(key);
-    if (it == table_->end())
-        return nullptr;
-
-    return &it->second;
-}
-
-inline const Value* Value::findChild(const std::string& key) const
-{
-    assert(is<Table>());
-
-    auto it = table_->find(key);
-    if (it == table_->end())
-        return nullptr;
-
-    return &it->second;
-}
-
-// ----------------------------------------------------------------------
-
-namespace internal {
-
-inline void Parser::skipForKey()
-{
-    while (token().type() == TokenType::END_OF_LINE)
-        nextKey();
-}
-
-inline void Parser::skipForValue()
-{
-    while (token().type() == TokenType::END_OF_LINE)
-        nextValue();
-}
-
-inline bool Parser::consumeForKey(TokenType type)
-{
-    if (token().type() == type) {
-        nextKey();
-        return true;
-    }
-
-    return false;
-}
-
-inline bool Parser::consumeForValue(TokenType type)
-{
-    if (token().type() == type) {
-        nextValue();
-        return true;
-    }
-
-    return false;
-}
-
-inline bool Parser::consumeEOLorEOFForKey()
-{
-    if (token().type() == TokenType::END_OF_LINE || token().type() == TokenType::END_OF_FILE) {
-        nextKey();
-        return true;
-    }
-
-    return false;
-}
-
-inline void Parser::addError(const std::string& reason)
-{
-    if (!errorReason_.empty())
-        return;
-
-    std::stringstream ss;
-    ss << "Error: line " << lexer_.lineNo() << ": " << reason;
-    errorReason_ = ss.str();
-}
-
-inline const std::string& Parser::errorReason()
-{
-    return errorReason_;
-}
-
-inline Value Parser::parse()
-{
-    Value root((Table()));
-    Value* currentValue = &root;
-
-    while (true) {
-        skipForKey();
-        if (token().type() == TokenType::END_OF_FILE)
-            break;
-        if (token().type() == TokenType::LBRACKET) {
-            currentValue = parseGroupKey(&root);
-            if (!currentValue) {
-                addError("error when parsing group key");
-                return Value();
-            }
-            continue;
-        }
-
-        if (!parseKeyValue(currentValue)) {
-            addError("error when parsing key Value");
-            return Value();
-        }
-    }
-    return root;
-}
-
-inline Value* Parser::parseGroupKey(Value* root)
-{
-    if (!consumeForKey(TokenType::LBRACKET))
-        return nullptr;
-
-    bool isArray = false;
-    if (token().type() == TokenType::LBRACKET) {
-        nextKey();
-        isArray = true;
-    }
-
-    Value* currentValue = root;
-    while (true) {
-        if (token().type() != TokenType::IDENT && token().type() != TokenType::STRING)
-            return nullptr;
-
-        std::string key = token().strValue();
-        nextKey();
-
-        if (token().type() == TokenType::DOT) {
-            nextKey();
-            if (Value* candidate = currentValue->findChild(key)) {
-                if (candidate->is<Array>() && candidate->size() > 0)
-                    candidate = candidate->find(candidate->size() - 1);
-                if (!candidate->is<Table>())
-                    return nullptr;
-                currentValue = candidate;
-            } else {
-                currentValue = currentValue->setChild(key, Table());
-            }
-            continue;
-        }
-
-        if (token().type() == TokenType::RBRACKET) {
-            nextKey();
-            if (Value* candidate = currentValue->findChild(key)) {
-                if (isArray) {
-                    if (!candidate->is<Array>())
-                        return nullptr;
-                    currentValue = candidate->push(Table());
-                } else {
-                    if (candidate->is<Array>() && candidate->size() > 0)
-                        candidate = candidate->find(candidate->size() - 1);
-                    if (!candidate->is<Table>())
-                        return nullptr;
-                    currentValue = candidate;
-                }
-            } else {
-                if (isArray) {
-                    currentValue = currentValue->setChild(key, Array());
-                    currentValue = currentValue->push(Table());
-                } else {
-                    currentValue = currentValue->setChild(key, Table());
-                }
-            }
-            break;
-        }
-
-        return nullptr;
-    }
-
-    if (isArray) {
-        if (!consumeForKey(TokenType::RBRACKET))
-            return nullptr;
-    }
-
-    if (!consumeEOLorEOFForKey())
-        return nullptr;
-
-    return currentValue;
-}
-
-inline bool Parser::parseKeyValue(Value* current)
-{
-    std::string key;
-    if (!parseKey(&key)) {
-        addError("parse key failed");
-        return false;
-    }
-    if (!consumeForValue(TokenType::EQUAL)) {
-        addError("no equal?");
-        return false;
-    }
-
-    Value v;
-    if (!parseValue(&v))
-        return false;
-    if (!consumeEOLorEOFForKey())
-        return false;
-
-    if (current->has(key)) {
-        addError("Multiple same key: " + key);
-        return false;
-    }
-
-    current->setChild(key, std::move(v));
-    return true;
-}
-
-inline bool Parser::parseKey(std::string* key)
-{
-    key->clear();
-
-    if (token().type() == TokenType::IDENT || token().type() == TokenType::STRING) {
-        *key = token().strValue();
-        nextValue();
-        return true;
-    }
-
-    return false;
-}
-
-inline bool Parser::parseValue(Value* v)
-{
-    switch (token().type()) {
-    case TokenType::STRING:
-    case TokenType::MULTILINE_STRING:
-        *v = token().strValue();
-        nextValue();
-        return true;
-    case TokenType::LBRACKET:
-        return parseArray(v);
-    case TokenType::LBRACE:
-        return parseInlineTable(v);
-    case TokenType::BOOL:
-        *v = token().boolValue();
-        nextValue();
-        return true;
-    case TokenType::INT:
-        *v = token().intValue();
-        nextValue();
-        return true;
-    case TokenType::DOUBLE:
-        *v = token().doubleValue();
-        nextValue();
-        return true;
-    case TokenType::TIME:
-        *v = token().timeValue();
-        nextValue();
-        return true;
-    case TokenType::ERROR:
-        addError(token().strValue());
-        return false;
-    default:
-        addError("unexpected token");
-        return false;
-    }
-}
-
-inline bool Parser::parseBool(Value* v)
-{
-    if (token().strValue() == "true") {
-        nextValue();
-        *v = true;
-        return true;
-    }
-
-    if (token().strValue() == "false") {
-        nextValue();
-        *v = false;
-        return true;
-    }
-
-    return false;
-}
-
-inline bool Parser::parseArray(Value* v)
-{
-    if (!consumeForValue(TokenType::LBRACKET))
-        return false;
-
-    Array a;
-    while (true) {
-        skipForValue();
-
-        if (token().type() == TokenType::RBRACKET)
-            break;
-
-        skipForValue();
-        Value x;
-        if (!parseValue(&x))
-            return false;
-
-        if (!a.empty()) {
-            if (a.front().type() != x.type()) {
-                addError("type check failed");
-                return false;
-            }
-        }
-
-        a.push_back(std::move(x));
-        skipForValue();
-        if (token().type() == TokenType::RBRACKET)
-            break;
-        if (token().type() == TokenType::COMMA)
-            nextValue();
-    }
-
-    if (!consumeForValue(TokenType::RBRACKET))
-        return false;
-    *v = std::move(a);
-    return true;
-}
-
-inline bool Parser::parseInlineTable(Value* value)
-{
-    // For inline table, next is KEY, so use consumeForKey here.
-    if (!consumeForKey(TokenType::LBRACE))
-        return false;
-
-    Value t((Table()));
-    bool first = true;
-    while (true) {
-        if (token().type() == TokenType::RBRACE) {
-            break;
-        }
-
-        if (!first) {
-            if (token().type() != TokenType::COMMA) {
-                addError("inline table didn't have ',' for delimiter?");
-                return false;
-            }
-            nextKey();
-        }
-        first = false;
-
-        std::string key;
-        if (!parseKey(&key))
-            return false;
-        if (!consumeForValue(TokenType::EQUAL))
-            return false;
-        Value v;
-        if (!parseValue(&v))
-            return false;
-
-        if (t.has(key)) {
-            addError("inline table has multiple same keys: key=" + key);
-            return false;
-        }
-
-        t.set(key, v);
-    }
-
-    if (!consumeForValue(TokenType::RBRACE))
-        return false;
-    *value = std::move(t);
-    return true;
-}
-
-} // namespace internal
-} // namespace toml
-
-#endif // TINYTOML_H_