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tomlplusplus/toml.hpp
Mark Gillard ab85988d59 fixed single-digit negative integer parsing bug (closes #39) 
also:
- fixed overflow for very long binary integer literals
- added optimization for parsing string views containing trailing null characters
- added more tests
2020-06-19 14:17:52 +03:00

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//----------------------------------------------------------------------------------------------------------------------
//
// toml++ v1.3.2
// https://github.com/marzer/tomlplusplus
// SPDX-License-Identifier: MIT
//
//----------------------------------------------------------------------------------------------------------------------
//
// - THIS FILE WAS ASSEMBLED FROM MULTIPLE HEADER FILES BY A SCRIPT - PLEASE DON'T EDIT IT DIRECTLY -
//
// If you wish to submit a contribution to toml++, hooray and thanks! Before you crack on, please be aware that this
// file was assembled from a number of smaller files by a python script, and code contributions should not be made
// against it directly. You should instead make your changes in the relevant source file(s). The file names of the files
// that contributed to this header can be found at the beginnings and ends of the corresponding sections of this file.
//
//----------------------------------------------------------------------------------------------------------------------
//
// TOML language specifications:
// Latest: https://github.com/toml-lang/toml/blob/master/README.md
// v1.0.0-rc.1: https://github.com/toml-lang/toml/blob/master/versions/en/toml-v1.0.0-rc.1.md
// v0.5.0: https://github.com/toml-lang/toml/blob/master/versions/en/toml-v0.5.0.md
//
//----------------------------------------------------------------------------------------------------------------------
//
// MIT License
//
// Copyright (c) 2019-2020 Mark Gillard <mark.gillard@outlook.com.au>
// Copyright (c) 2008-2010 Bjoern Hoehrmann <bjoern@hoehrmann.de> (utf8_decoder)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
// documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
// Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//----------------------------------------------------------------------------------------------------------------------
// clang-format off
#ifndef INCLUDE_TOMLPLUSPLUS_H
#define INCLUDE_TOMLPLUSPLUS_H
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunknown-pragmas"
#endif
#define TOML_LIB_SINGLE_HEADER 1
//-------------- ↓ toml_preprocessor.h -------------------------------------------------------------------------------
#pragma region
#ifdef TOML_CONFIG_HEADER
#include TOML_CONFIG_HEADER
#endif
#if !defined(TOML_ALL_INLINE) || (defined(TOML_ALL_INLINE) && TOML_ALL_INLINE)
#undef TOML_ALL_INLINE
#define TOML_ALL_INLINE 1
#endif
#if defined(TOML_IMPLEMENTATION) || TOML_ALL_INLINE || defined(__INTELLISENSE__)
#undef TOML_IMPLEMENTATION
#define TOML_IMPLEMENTATION 1
#else
#define TOML_IMPLEMENTATION 0
#endif
#ifndef TOML_API
#define TOML_API
#endif
#ifndef TOML_CHAR_8_STRINGS
#define TOML_CHAR_8_STRINGS 0
#endif
#ifndef TOML_UNRELEASED_FEATURES
#define TOML_UNRELEASED_FEATURES 0
#endif
#ifndef TOML_LARGE_FILES
#define TOML_LARGE_FILES 0
#endif
#ifndef TOML_UNDEF_MACROS
#define TOML_UNDEF_MACROS 1
#endif
#ifndef TOML_PARSER
#define TOML_PARSER 1
#endif
#ifndef TOML_DOXYGEN
#define TOML_DOXYGEN 0
#endif
#ifndef __cplusplus
#error toml++ is a C++ library.
#endif
#ifdef __clang__
#define TOML_PUSH_WARNINGS _Pragma("clang diagnostic push")
#define TOML_DISABLE_SWITCH_WARNINGS _Pragma("clang diagnostic ignored \"-Wswitch\"")
#define TOML_DISABLE_INIT_WARNINGS _Pragma("clang diagnostic ignored \"-Wmissing-field-initializers\"")
#define TOML_DISABLE_VTABLE_WARNINGS _Pragma("clang diagnostic ignored \"-Weverything\"") \
_Pragma("clang diagnostic ignored \"-Wweak-vtables\"")
#define TOML_DISABLE_PADDING_WARNINGS _Pragma("clang diagnostic ignored \"-Wpadded\"")
#define TOML_DISABLE_FLOAT_WARNINGS _Pragma("clang diagnostic ignored \"-Wfloat-equal\"") \
_Pragma("clang diagnostic ignored \"-Wdouble-promotion\"")
#define TOML_DISABLE_SHADOW_WARNINGS _Pragma("clang diagnostic ignored \"-Wshadow\"")
#define TOML_DISABLE_ALL_WARNINGS _Pragma("clang diagnostic ignored \"-Weverything\"")
#define TOML_POP_WARNINGS _Pragma("clang diagnostic pop")
#define TOML_ASSUME(cond) __builtin_assume(cond)
#define TOML_UNREACHABLE __builtin_unreachable()
#define TOML_GNU_ATTR(...) __attribute__((__VA_ARGS__))
#if defined(_MSC_VER) // msvc compat mode
#ifdef __has_declspec_attribute
#if __has_declspec_attribute(novtable)
#define TOML_INTERFACE __declspec(novtable)
#endif
#if __has_declspec_attribute(empty_bases)
#define TOML_EMPTY_BASES __declspec(empty_bases)
#endif
#define TOML_ALWAYS_INLINE __forceinline
#endif
#endif
#ifdef __has_attribute
#if !defined(TOML_ALWAYS_INLINE) && __has_attribute(always_inline)
#define TOML_ALWAYS_INLINE __attribute__((__always_inline__)) inline
#endif
#if !defined(TOML_TRIVIAL_ABI) && __has_attribute(trivial_abi)
#define TOML_TRIVIAL_ABI __attribute__((__trivial_abi__))
#endif
#endif
#ifdef __EXCEPTIONS
#define TOML_COMPILER_EXCEPTIONS 1
#else
#define TOML_COMPILER_EXCEPTIONS 0
#endif
#define TOML_LIKELY(...) (__builtin_expect(!!(__VA_ARGS__), 1) )
#define TOML_UNLIKELY(...) (__builtin_expect(!!(__VA_ARGS__), 0) )
//floating-point from_chars and to_chars are not implemented in any version of clang as of 1/1/2020
#ifndef TOML_FLOAT_CHARCONV
#define TOML_FLOAT_CHARCONV 0
#endif
#elif defined(_MSC_VER) || (defined(__INTEL_COMPILER) && defined(__ICL))
#define TOML_CPP_VERSION _MSVC_LANG
#define TOML_PUSH_WARNINGS __pragma(warning(push))
#define TOML_DISABLE_SWITCH_WARNINGS __pragma(warning(disable: 4063))
#define TOML_DISABLE_ALL_WARNINGS __pragma(warning(pop)) \
__pragma(warning(push, 0))
#define TOML_POP_WARNINGS __pragma(warning(pop))
#define TOML_ALWAYS_INLINE __forceinline
#define TOML_ASSUME(cond) __assume(cond)
#define TOML_UNREACHABLE __assume(0)
#define TOML_INTERFACE __declspec(novtable)
#define TOML_EMPTY_BASES __declspec(empty_bases)
#if !defined(TOML_RELOPS_REORDERING) && defined(__cpp_impl_three_way_comparison)
#define TOML_RELOPS_REORDERING 1
#endif
#ifdef _CPPUNWIND
#define TOML_COMPILER_EXCEPTIONS 1
#else
#define TOML_COMPILER_EXCEPTIONS 0
#endif
#elif defined(__GNUC__)
#define TOML_PUSH_WARNINGS _Pragma("GCC diagnostic push")
#define TOML_DISABLE_SWITCH_WARNINGS _Pragma("GCC diagnostic ignored \"-Wswitch\"") \
_Pragma("GCC diagnostic ignored \"-Wswitch-enum\"") \
_Pragma("GCC diagnostic ignored \"-Wswitch-default\"")
#define TOML_DISABLE_INIT_WARNINGS _Pragma("GCC diagnostic ignored \"-Wmissing-field-initializers\"") \
_Pragma("GCC diagnostic ignored \"-Wmaybe-uninitialized\"") \
_Pragma("GCC diagnostic ignored \"-Wuninitialized\"")
#define TOML_DISABLE_PADDING_WARNINGS _Pragma("GCC diagnostic ignored \"-Wpadded\"")
#define TOML_DISABLE_FLOAT_WARNINGS _Pragma("GCC diagnostic ignored \"-Wfloat-equal\"")
#define TOML_DISABLE_SHADOW_WARNINGS _Pragma("GCC diagnostic ignored \"-Wshadow\"")
#define TOML_DISABLE_ALL_WARNINGS _Pragma("GCC diagnostic ignored \"-Wall\"") \
_Pragma("GCC diagnostic ignored \"-Wextra\"") \
_Pragma("GCC diagnostic ignored \"-Wchar-subscripts\"") \
_Pragma("GCC diagnostic ignored \"-Wtype-limits\"") \
TOML_DISABLE_SWITCH_WARNINGS \
TOML_DISABLE_INIT_WARNINGS \
TOML_DISABLE_PADDING_WARNINGS \
TOML_DISABLE_FLOAT_WARNINGS \
TOML_DISABLE_SHADOW_WARNINGS
#define TOML_POP_WARNINGS _Pragma("GCC diagnostic pop")
#define TOML_GNU_ATTR(...) __attribute__((__VA_ARGS__))
#define TOML_ALWAYS_INLINE __attribute__((__always_inline__)) inline
#define TOML_UNREACHABLE __builtin_unreachable()
#if !defined(TOML_RELOPS_REORDERING) && defined(__cpp_impl_three_way_comparison)
#define TOML_RELOPS_REORDERING 1
#endif
#ifdef __cpp_exceptions
#define TOML_COMPILER_EXCEPTIONS 1
#else
#define TOML_COMPILER_EXCEPTIONS 0
#endif
#define TOML_LIKELY(...) (__builtin_expect(!!(__VA_ARGS__), 1) )
#define TOML_UNLIKELY(...) (__builtin_expect(!!(__VA_ARGS__), 0) )
// floating-point from_chars and to_chars are not implemented in any version of gcc as of 1/1/2020
#ifndef TOML_FLOAT_CHARCONV
#define TOML_FLOAT_CHARCONV 0
#endif
#endif
#ifndef TOML_CPP_VERSION
#define TOML_CPP_VERSION __cplusplus
#endif
#if TOML_CPP_VERSION < 201103L
#error toml++ requires C++17 or higher. For a TOML library supporting pre-C++11 see https://github.com/ToruNiina/Boost.toml
#elif TOML_CPP_VERSION < 201703L
#error toml++ requires C++17 or higher. For a TOML library supporting C++11 see https://github.com/skystrife/cpptoml
#elif TOML_CPP_VERSION >= 202600L
#define TOML_CPP 26
#elif TOML_CPP_VERSION >= 202300L
#define TOML_CPP 23
#elif TOML_CPP_VERSION >= 202002L
#define TOML_CPP 20
#elif TOML_CPP_VERSION >= 201703L
#define TOML_CPP 17
#endif
#ifndef TOML_COMPILER_EXCEPTIONS
#define TOML_COMPILER_EXCEPTIONS 1
#endif
#if TOML_COMPILER_EXCEPTIONS
#ifndef TOML_EXCEPTIONS
#define TOML_EXCEPTIONS 1
#endif
#else
#if defined(TOML_EXCEPTIONS) && TOML_EXCEPTIONS
#error TOML_EXCEPTIONS was explicitly enabled but exceptions are disabled/unsupported by the compiler.
#endif
#undef TOML_EXCEPTIONS
#define TOML_EXCEPTIONS 0
#endif
#if TOML_EXCEPTIONS
#define TOML_MAY_THROW
#else
#define TOML_MAY_THROW noexcept
#endif
#ifndef TOML_INT_CHARCONV
#define TOML_INT_CHARCONV 1
#endif
#ifndef TOML_FLOAT_CHARCONV
#define TOML_FLOAT_CHARCONV 1
#endif
#if (TOML_INT_CHARCONV || TOML_FLOAT_CHARCONV) && !__has_include(<charconv>)
#undef TOML_INT_CHARCONV
#undef TOML_FLOAT_CHARCONV
#define TOML_INT_CHARCONV 0
#define TOML_FLOAT_CHARCONV 0
#endif
#ifndef TOML_PUSH_WARNINGS
#define TOML_PUSH_WARNINGS
#endif
#ifndef TOML_DISABLE_SWITCH_WARNINGS
#define TOML_DISABLE_SWITCH_WARNINGS
#endif
#ifndef TOML_DISABLE_INIT_WARNINGS
#define TOML_DISABLE_INIT_WARNINGS
#endif
#ifndef TOML_DISABLE_VTABLE_WARNINGS
#define TOML_DISABLE_VTABLE_WARNINGS
#endif
#ifndef TOML_DISABLE_PADDING_WARNINGS
#define TOML_DISABLE_PADDING_WARNINGS
#endif
#ifndef TOML_DISABLE_FLOAT_WARNINGS
#define TOML_DISABLE_FLOAT_WARNINGS
#endif
#ifndef TOML_DISABLE_SHADOW_WARNINGS
#define TOML_DISABLE_SHADOW_WARNINGS
#endif
#ifndef TOML_DISABLE_ALL_WARNINGS
#define TOML_DISABLE_ALL_WARNINGS
#endif
#ifndef TOML_POP_WARNINGS
#define TOML_POP_WARNINGS
#endif
#ifndef TOML_GNU_ATTR
#define TOML_GNU_ATTR(...)
#endif
#ifndef TOML_INTERFACE
#define TOML_INTERFACE
#endif
#ifndef TOML_EMPTY_BASES
#define TOML_EMPTY_BASES
#endif
#ifndef TOML_ALWAYS_INLINE
#define TOML_ALWAYS_INLINE inline
#endif
#ifndef TOML_ASSUME
#define TOML_ASSUME(cond) (void)0
#endif
#ifndef TOML_UNREACHABLE
#define TOML_UNREACHABLE TOML_ASSERT(false)
#endif
#define TOML_NO_DEFAULT_CASE default: TOML_UNREACHABLE
#ifdef __cpp_consteval
#define TOML_CONSTEVAL consteval
#else
#define TOML_CONSTEVAL constexpr
#endif
#if !TOML_DOXYGEN && !defined(__INTELLISENSE__)
#if !defined(TOML_LIKELY) && __has_cpp_attribute(likely)
#define TOML_LIKELY(...) (__VA_ARGS__) [[likely]]
#endif
#if !defined(TOML_UNLIKELY) && __has_cpp_attribute(unlikely)
#define TOML_UNLIKELY(...) (__VA_ARGS__) [[unlikely]]
#endif
#if __has_cpp_attribute(nodiscard) >= 201907L
#define TOML_NODISCARD_CTOR [[nodiscard]]
#endif
#endif
#ifndef TOML_LIKELY
#define TOML_LIKELY(...) (__VA_ARGS__)
#endif
#ifndef TOML_UNLIKELY
#define TOML_UNLIKELY(...) (__VA_ARGS__)
#endif
#ifndef TOML_NODISCARD_CTOR
#define TOML_NODISCARD_CTOR
#endif
#ifndef TOML_TRIVIAL_ABI
#define TOML_TRIVIAL_ABI
#endif
#ifndef TOML_RELOPS_REORDERING
#define TOML_RELOPS_REORDERING 0
#endif
#if TOML_RELOPS_REORDERING
#define TOML_ASYMMETRICAL_EQUALITY_OPS(...)
#else
#define TOML_ASYMMETRICAL_EQUALITY_OPS(LHS, RHS, ...) \
__VA_ARGS__ [[nodiscard]] friend bool operator == (RHS rhs, LHS lhs) noexcept { return lhs == rhs; } \
__VA_ARGS__ [[nodiscard]] friend bool operator != (LHS lhs, RHS rhs) noexcept { return !(lhs == rhs); } \
__VA_ARGS__ [[nodiscard]] friend bool operator != (RHS rhs, LHS lhs) noexcept { return !(lhs == rhs); }
#endif
#if TOML_ALL_INLINE
#define TOML_EXTERNAL_LINKAGE inline
#define TOML_INTERNAL_LINKAGE inline
#define TOML_INTERNAL_NAMESPACE toml::impl
#else
#define TOML_EXTERNAL_LINKAGE
#define TOML_INTERNAL_LINKAGE static
#define TOML_INTERNAL_NAMESPACE
#endif
#define TOML_LIB_MAJOR 1
#define TOML_LIB_MINOR 3
#define TOML_LIB_PATCH 2
#define TOML_LANG_MAJOR 1
#define TOML_LANG_MINOR 0
#define TOML_LANG_PATCH 0
#define TOML_MAKE_VERSION(maj, min, rev) \
((maj) * 1000 + (min) * 25 + (rev))
#if TOML_UNRELEASED_FEATURES
#define TOML_LANG_EFFECTIVE_VERSION \
TOML_MAKE_VERSION(TOML_LANG_MAJOR, TOML_LANG_MINOR, TOML_LANG_PATCH+1)
#else
#define TOML_LANG_EFFECTIVE_VERSION \
TOML_MAKE_VERSION(TOML_LANG_MAJOR, TOML_LANG_MINOR, TOML_LANG_PATCH)
#endif
#define TOML_LANG_HIGHER_THAN(maj, min, rev) \
(TOML_LANG_EFFECTIVE_VERSION > TOML_MAKE_VERSION(maj, min, rev))
#define TOML_LANG_AT_LEAST(maj, min, rev) \
(TOML_LANG_EFFECTIVE_VERSION >= TOML_MAKE_VERSION(maj, min, rev))
#define TOML_LANG_UNRELEASED \
TOML_LANG_HIGHER_THAN(TOML_LANG_MAJOR, TOML_LANG_MINOR, TOML_LANG_PATCH)
#if TOML_DOXYGEN || defined(__INTELLISENSE__)
#define TOML_ABI_NAMESPACES 0
#define TOML_ABI_NAMESPACE_START(name)
#define TOML_ABI_NAMESPACE_END
#else
#define TOML_ABI_NAMESPACES 1
#define TOML_ABI_NAMESPACE_START(name) inline namespace abi_##name {
#define TOML_ABI_NAMESPACE_END }
#endif
TOML_PUSH_WARNINGS
TOML_DISABLE_ALL_WARNINGS
#ifndef TOML_ASSERT
#ifdef NDEBUG
#define TOML_ASSERT(expr) (void)0
#else
#include <cassert>
#define TOML_ASSERT(expr) assert(expr)
#endif
#endif
TOML_POP_WARNINGS
#if TOML_CHAR_8_STRINGS
#define TOML_STRING_PREFIX_1(S) u8##S
#define TOML_STRING_PREFIX(S) TOML_STRING_PREFIX_1(S)
#else
#define TOML_STRING_PREFIX(S) S
#endif
#pragma endregion
//-------------- ↑ toml_preprocessor.h -------------------------------------------------------------------------------
//------------------------------------------ ↓ toml_common.h ---------------------------------------------------------
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_ALL_WARNINGS
#if __has_include(<version>)
#include <version>
#endif
#include <cstdint>
#include <cstring> //memcpy, memset
#include <memory>
#include <string_view>
#include <string>
#include <vector>
#include <map>
#include <iosfwd>
#ifndef TOML_OPTIONAL_TYPE
#include <optional>
#endif
#ifndef TOML_ASSERT
#ifdef NDEBUG
#define TOML_ASSERT(expr) (void)0
#else
#include <cassert>
#define TOML_ASSERT(expr) assert(expr)
#endif
#endif
TOML_POP_WARNINGS
#if TOML_CHAR_8_STRINGS && !defined(__cpp_lib_char8_t)
#error toml++ requires implementation support to use char8_t strings, but yours does not provide it.
#endif
#ifdef __cpp_lib_launder
#define TOML_LAUNDER(x) std::launder(x)
#else
#define TOML_LAUNDER(x) x
#endif
namespace toml
{
using namespace std::string_literals;
using namespace std::string_view_literals;
using size_t = std::size_t;
using ptrdiff_t = std::ptrdiff_t;
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
TOML_CONSTEVAL size_t operator"" _sz(unsigned long long n) noexcept
{
return static_cast<size_t>(n);
}
#if TOML_CHAR_8_STRINGS
using string_char = char8_t;
using string = std::u8string;
using string_view = std::u8string_view;
#else
using string_char = char;
using string = std::string;
using string_view = std::string_view;
#endif
TOML_PUSH_WARNINGS
TOML_DISABLE_PADDING_WARNINGS
TOML_DISABLE_SHADOW_WARNINGS // false positive on gcc
#if !TOML_DOXYGEN
// foward declarations are hidden from doxygen
// because they fuck it up =/
struct date;
struct time;
struct time_offset;
class node;
class array;
class table;
template <typename> class node_view;
template <typename> class value;
template <typename> class default_formatter;
template <typename> class json_formatter;
#ifdef TOML_OPTIONAL_TYPE
TOML_ABI_NAMESPACE_START(custopt)
#else
TOML_ABI_NAMESPACE_START(stdopt)
#endif
struct date_time;
TOML_ABI_NAMESPACE_END // TOML_OPTIONAL_TYPE
#endif // !TOML_DOXYGEN
enum class node_type : uint8_t
{
none,
table,
array,
string,
integer,
floating_point,
boolean,
date,
time,
date_time
};
TOML_POP_WARNINGS // TOML_DISABLE_PADDING_WARNINGS, TOML_DISABLE_SHADOW_WARNINGS
#ifdef TOML_OPTIONAL_TYPE
template <typename T>
using optional = TOML_OPTIONAL_TYPE<T>;
#else
template <typename T>
using optional = std::optional<T>;
#endif
#if TOML_LARGE_FILES
using source_index = uint32_t;
#else
using source_index = uint16_t;
#endif
using source_path_ptr = std::shared_ptr<const std::string>;
#if TOML_LARGE_FILES
TOML_ABI_NAMESPACE_START(lf)
#else
TOML_ABI_NAMESPACE_START(sf)
#endif
struct TOML_TRIVIAL_ABI source_position
{
source_index line;
source_index column;
[[nodiscard]]
explicit constexpr operator bool () const noexcept
{
return line > source_index{} && column > source_index{};
}
[[nodiscard]]
friend constexpr bool operator == (const source_position& lhs, const source_position& rhs) noexcept
{
return lhs.line == rhs.line
&& lhs.column == rhs.column;
}
[[nodiscard]]
friend constexpr bool operator != (const source_position& lhs, const source_position& rhs) noexcept
{
return lhs.line != rhs.line
|| lhs.column != rhs.column;
}
[[nodiscard]]
friend constexpr bool operator < (const source_position& lhs, const source_position& rhs) noexcept
{
return lhs.line < rhs.line
|| (lhs.line == rhs.line && lhs.column < rhs.column);
}
[[nodiscard]]
friend constexpr bool operator <= (const source_position& lhs, const source_position& rhs) noexcept
{
return lhs.line < rhs.line
|| (lhs.line == rhs.line && lhs.column <= rhs.column);
}
};
struct source_region
{
source_position begin;
source_position end;
source_path_ptr path;
};
TOML_ABI_NAMESPACE_END // TOML_LARGE_FILES
}
namespace toml::impl
{
template <typename T>
using string_map = std::map<string, T, std::less<>>; //heterogeneous lookup
template <typename T>
using remove_cvref_t = std::remove_cv_t<std::remove_reference_t<T>>;
template <typename T, typename... U>
struct is_one_of_ : std::integral_constant<bool,
(false || ... || std::is_same_v<T, U>)
> {};
template <typename T, typename... U>
inline constexpr bool is_one_of = is_one_of_<T, U...>::value;
template <typename T>
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
constexpr std::underlying_type_t<T> unbox_enum(T val) noexcept
{
return static_cast<std::underlying_type_t<T>>(val);
}
// Q: "why not use std::find??"
// A: Because <algorithm> is _huge_ and std::find would be the only thing I used from it.
// I don't want to impose such a heavy compile-time burden on users.
template <typename T>
[[nodiscard]]
inline const T* find(const std::vector<T>& haystack, const T& needle) noexcept
{
for (size_t i = 0, e = haystack.size(); i < e; i++)
if (haystack[i] == needle)
return haystack.data() + i;
return nullptr;
}
#if TOML_ABI_NAMESPACES
#if TOML_EXCEPTIONS
TOML_ABI_NAMESPACE_START(impl_ex)
#define TOML_PARSER_TYPENAME ::toml::impl::abi_impl_ex::parser
#else
TOML_ABI_NAMESPACE_START(impl_noex)
#define TOML_PARSER_TYPENAME ::toml::impl::abi_impl_noex::parser
#endif
#else
#define TOML_PARSER_TYPENAME ::toml::impl::parser
#endif
class parser;
TOML_ABI_NAMESPACE_END // TOML_EXCEPTIONS
template <typename T>
inline constexpr bool is_value =
std::is_same_v<T, string>
|| std::is_same_v<T, int64_t>
|| std::is_same_v<T, double>
|| std::is_same_v<T, bool>
|| std::is_same_v<T, date>
|| std::is_same_v<T, time>
|| std::is_same_v<T, date_time>;
template <typename T>
inline constexpr bool is_value_or_promotable =
is_value<T>
|| std::is_same_v<std::decay_t<T>, string_char*>
|| std::is_same_v<T, string_view>
|| std::is_same_v<T, int32_t>
|| std::is_same_v<T, int16_t>
|| std::is_same_v<T, int8_t>
|| std::is_same_v<T, uint32_t>
|| std::is_same_v<T, uint16_t>
|| std::is_same_v<T, uint8_t>
|| std::is_same_v<T, float>
#ifdef TOML_SMALL_FLOAT_TYPE
|| std::is_same_v<T, TOML_SMALL_FLOAT_TYPE>
#endif
#ifdef TOML_SMALL_INT_TYPE
|| std::is_same_v<T, TOML_SMALL_INT_TYPE>
#endif
;
template <typename T>
inline constexpr bool is_value_or_node =
is_value<T>
|| std::is_same_v<T, array>
|| std::is_same_v<T, table>;
template <typename T> struct node_wrapper { using type = T; };
template <> struct node_wrapper<string> { using type = value<string>; };
template <> struct node_wrapper<int64_t> { using type = value<int64_t>; };
template <> struct node_wrapper<double> { using type = value<double>; };
template <> struct node_wrapper<bool> { using type = value<bool>; };
template <> struct node_wrapper<date> { using type = value<date>; };
template <> struct node_wrapper<time> { using type = value<time>; };
template <> struct node_wrapper<date_time> { using type = value<date_time>; };
template <typename T>
using node_of = typename impl::node_wrapper<T>::type;
template <typename T> struct node_unwrapper { using type = T; };
template <typename T> struct node_unwrapper<value<T>> { using type = T; };
template <typename T> using unwrapped = typename impl::node_unwrapper<T>::type;
template <typename T> struct value_promoter { using type = T; };
template <size_t N> struct value_promoter<const string_char[N]> { using type = string; };
template <size_t N> struct value_promoter<const string_char(&)[N]> { using type = string; };
template <size_t N> struct value_promoter<const string_char(&&)[N]> { using type = string; };
template <> struct value_promoter<const string_char*> { using type = string; };
template <size_t N> struct value_promoter<string_char[N]> { using type = string; };
template <size_t N> struct value_promoter<string_char(&)[N]> { using type = string; };
template <size_t N> struct value_promoter<string_char(&&)[N]> { using type = string; };
template <> struct value_promoter<string_char*> { using type = string; };
template <> struct value_promoter<string_view> { using type = string; };
template <> struct value_promoter<int32_t> { using type = int64_t; };
template <> struct value_promoter<int16_t> { using type = int64_t; };
template <> struct value_promoter<int8_t> { using type = int64_t; };
template <> struct value_promoter<uint32_t> { using type = int64_t; };
template <> struct value_promoter<uint16_t> { using type = int64_t; };
template <> struct value_promoter<uint8_t> { using type = int64_t; };
template <> struct value_promoter<float> { using type = double; };
#ifdef TOML_SMALL_FLOAT_TYPE
template <> struct value_promoter<TOML_SMALL_FLOAT_TYPE> { using type = double; };
#endif
#ifdef TOML_SMALL_INT_TYPE
template <> struct value_promoter<TOML_SMALL_INT_TYPE> { using type = int64_t; };
#endif
template <typename T> using promoted = typename impl::value_promoter<T>::type;
template <typename T> struct node_type_of_;
template <> struct node_type_of_<table> { static constexpr auto value = node_type::table; };
template <> struct node_type_of_<array> { static constexpr auto value = node_type::array; };
template <> struct node_type_of_<string> { static constexpr auto value = node_type::string; };
template <> struct node_type_of_<int64_t> { static constexpr auto value = node_type::integer; };
template <> struct node_type_of_<double> { static constexpr auto value = node_type::floating_point; };
template <> struct node_type_of_<bool> { static constexpr auto value = node_type::boolean; };
template <> struct node_type_of_<date> { static constexpr auto value = node_type::date; };
template <> struct node_type_of_<time> { static constexpr auto value = node_type::time; };
template <> struct node_type_of_<date_time> { static constexpr auto value = node_type::date_time; };
template <typename T>
inline constexpr auto node_type_of = node_type_of_<promoted<typename node_unwrapper<remove_cvref_t<T>>::type>>::value;
inline constexpr toml::string_view low_character_escape_table[] =
{
TOML_STRING_PREFIX("\\u0000"sv),
TOML_STRING_PREFIX("\\u0001"sv),
TOML_STRING_PREFIX("\\u0002"sv),
TOML_STRING_PREFIX("\\u0003"sv),
TOML_STRING_PREFIX("\\u0004"sv),
TOML_STRING_PREFIX("\\u0005"sv),
TOML_STRING_PREFIX("\\u0006"sv),
TOML_STRING_PREFIX("\\u0007"sv),
TOML_STRING_PREFIX("\\b"sv),
TOML_STRING_PREFIX("\\t"sv),
TOML_STRING_PREFIX("\\n"sv),
TOML_STRING_PREFIX("\\u000B"sv),
TOML_STRING_PREFIX("\\f"sv),
TOML_STRING_PREFIX("\\r"sv),
TOML_STRING_PREFIX("\\u000E"sv),
TOML_STRING_PREFIX("\\u000F"sv),
TOML_STRING_PREFIX("\\u0010"sv),
TOML_STRING_PREFIX("\\u0011"sv),
TOML_STRING_PREFIX("\\u0012"sv),
TOML_STRING_PREFIX("\\u0013"sv),
TOML_STRING_PREFIX("\\u0014"sv),
TOML_STRING_PREFIX("\\u0015"sv),
TOML_STRING_PREFIX("\\u0016"sv),
TOML_STRING_PREFIX("\\u0017"sv),
TOML_STRING_PREFIX("\\u0018"sv),
TOML_STRING_PREFIX("\\u0019"sv),
TOML_STRING_PREFIX("\\u001A"sv),
TOML_STRING_PREFIX("\\u001B"sv),
TOML_STRING_PREFIX("\\u001C"sv),
TOML_STRING_PREFIX("\\u001D"sv),
TOML_STRING_PREFIX("\\u001E"sv),
TOML_STRING_PREFIX("\\u001F"sv),
};
inline constexpr std::string_view node_type_friendly_names[] =
{
"none"sv,
"table"sv,
"array"sv,
"string"sv,
"integer"sv,
"floating-point"sv,
"boolean"sv,
"date"sv,
"time"sv,
"date-time"sv
};
#define TOML_P2S_DECL(Linkage, Type) \
template <typename Char> \
Linkage void print_to_stream(Type, std::basic_ostream<Char>&)
TOML_P2S_DECL(TOML_ALWAYS_INLINE, int8_t);
TOML_P2S_DECL(TOML_ALWAYS_INLINE, int16_t);
TOML_P2S_DECL(TOML_ALWAYS_INLINE, int32_t);
TOML_P2S_DECL(TOML_ALWAYS_INLINE, int64_t);
TOML_P2S_DECL(TOML_ALWAYS_INLINE, uint8_t);
TOML_P2S_DECL(TOML_ALWAYS_INLINE, uint16_t);
TOML_P2S_DECL(TOML_ALWAYS_INLINE, uint32_t);
TOML_P2S_DECL(TOML_ALWAYS_INLINE, uint64_t);
TOML_P2S_DECL(TOML_ALWAYS_INLINE, float);
TOML_P2S_DECL(TOML_ALWAYS_INLINE, double);
TOML_P2S_DECL(inline, const date&);
TOML_P2S_DECL(inline, const time&);
TOML_P2S_DECL(inline, time_offset);
TOML_P2S_DECL(inline, const date_time&);
#undef TOML_P2S_DECL
}
namespace toml
{
template <typename T>
inline constexpr bool is_table = std::is_same_v<impl::remove_cvref_t<T>, table>;
template <typename T>
inline constexpr bool is_array = std::is_same_v<impl::remove_cvref_t<T>, array>;
template <typename T>
inline constexpr bool is_string = std::is_same_v<impl::node_of<impl::remove_cvref_t<T>>, value<string>>;
template <typename T>
inline constexpr bool is_integer = std::is_same_v<impl::node_of<impl::remove_cvref_t<T>>, value<int64_t>>;
template <typename T>
inline constexpr bool is_floating_point = std::is_same_v<impl::node_of<impl::remove_cvref_t<T>>, value<double>>;
template <typename T>
inline constexpr bool is_number = is_integer<T> || is_floating_point<T>;
template <typename T>
inline constexpr bool is_boolean = std::is_same_v<impl::node_of<impl::remove_cvref_t<T>>, value<bool>>;
template <typename T>
inline constexpr bool is_date = std::is_same_v<impl::node_of<impl::remove_cvref_t<T>>, value<date>>;
template <typename T>
inline constexpr bool is_time = std::is_same_v<impl::node_of<impl::remove_cvref_t<T>>, value<time>>;
template <typename T>
inline constexpr bool is_date_time = std::is_same_v<impl::node_of<impl::remove_cvref_t<T>>, value<date_time>>;
template <typename Char>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>& lhs, node_type rhs)
{
using underlying_t = std::underlying_type_t<node_type>;
const auto str = impl::node_type_friendly_names[static_cast<underlying_t>(rhs)];
if constexpr (std::is_same_v<Char, char>)
return lhs << str;
else
{
if constexpr (sizeof(Char) == 1)
return lhs << std::basic_string_view<Char>{ reinterpret_cast<const Char*>(str.data()), str.length() };
else
return lhs << str.data();
}
}
#if !TOML_ALL_INLINE
extern template TOML_API std::ostream& operator << (std::ostream&, node_type);
#endif
}
#pragma endregion
//------------------------------------------ ↑ toml_common.h ---------------------------------------------------------
//----------------------------------------------------------------- ↓ toml_date_time.h -------------------------------
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_PADDING_WARNINGS
namespace toml
{
struct TOML_TRIVIAL_ABI date
{
uint16_t year;
uint8_t month;
uint8_t day;
[[nodiscard]]
friend constexpr bool operator == (date lhs, date rhs) noexcept
{
return lhs.year == rhs.year
&& lhs.month == rhs.month
&& lhs.day == rhs.day;
}
[[nodiscard]]
friend constexpr bool operator != (date lhs, date rhs) noexcept
{
return lhs.year != rhs.year
|| lhs.month != rhs.month
|| lhs.day != rhs.day;
}
private:
[[nodiscard]] TOML_ALWAYS_INLINE
static constexpr uint32_t pack(date d) noexcept
{
return static_cast<uint32_t>(d.year) << 16
| static_cast<uint32_t>(d.month) << 8
| static_cast<uint32_t>(d.day);
}
public:
[[nodiscard]]
friend constexpr bool operator < (date lhs, date rhs) noexcept
{
return pack(lhs) < pack(rhs);
}
[[nodiscard]]
friend constexpr bool operator <= (date lhs, date rhs) noexcept
{
return pack(lhs) <= pack(rhs);
}
[[nodiscard]]
friend constexpr bool operator > (date lhs, date rhs) noexcept
{
return pack(lhs) > pack(rhs);
}
[[nodiscard]]
friend constexpr bool operator >= (date lhs, date rhs) noexcept
{
return pack(lhs) >= pack(rhs);
}
};
template <typename Char>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>& lhs, const date& rhs)
{
impl::print_to_stream(rhs, lhs);
return lhs;
}
#if !TOML_ALL_INLINE
extern template TOML_API std::ostream& operator << (std::ostream&, const date&);
#endif
struct TOML_TRIVIAL_ABI time
{
uint8_t hour;
uint8_t minute;
uint8_t second;
uint32_t nanosecond;
[[nodiscard]]
friend constexpr bool operator == (const time& lhs, const time& rhs) noexcept
{
return lhs.hour == rhs.hour
&& lhs.minute == rhs.minute
&& lhs.second == rhs.second
&& lhs.nanosecond == rhs.nanosecond;
}
[[nodiscard]]
friend constexpr bool operator != (const time& lhs, const time& rhs) noexcept
{
return !(lhs == rhs);
}
private:
[[nodiscard]] TOML_ALWAYS_INLINE
static constexpr uint64_t pack(time t) noexcept
{
return static_cast<uint64_t>(t.hour) << 48
| static_cast<uint64_t>(t.minute) << 40
| static_cast<uint64_t>(t.second) << 32
| static_cast<uint64_t>(t.nanosecond);
}
public:
[[nodiscard]]
friend constexpr bool operator < (time lhs, time rhs) noexcept
{
return pack(lhs) < pack(rhs);
}
[[nodiscard]]
friend constexpr bool operator <= (time lhs, time rhs) noexcept
{
return pack(lhs) <= pack(rhs);
}
[[nodiscard]]
friend constexpr bool operator > (time lhs, time rhs) noexcept
{
return pack(lhs) > pack(rhs);
}
[[nodiscard]]
friend constexpr bool operator >= (time lhs, time rhs) noexcept
{
return pack(lhs) >= pack(rhs);
}
};
template <typename Char>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>& lhs, const time& rhs)
{
impl::print_to_stream(rhs, lhs);
return lhs;
}
#if !TOML_ALL_INLINE
extern template TOML_API std::ostream& operator << (std::ostream&, const time&);
#endif
struct TOML_TRIVIAL_ABI time_offset
{
int16_t minutes;
TOML_NODISCARD_CTOR
constexpr time_offset() noexcept
: minutes{}
{}
TOML_NODISCARD_CTOR
constexpr time_offset(int8_t h, int8_t m) noexcept
: minutes{ static_cast<int16_t>(h * 60 + m) }
{}
[[nodiscard]]
friend constexpr bool operator == (time_offset lhs, time_offset rhs) noexcept
{
return lhs.minutes == rhs.minutes;
}
[[nodiscard]]
friend constexpr bool operator != (time_offset lhs, time_offset rhs) noexcept
{
return lhs.minutes != rhs.minutes;
}
[[nodiscard]]
friend constexpr bool operator < (time_offset lhs, time_offset rhs) noexcept
{
return lhs.minutes < rhs.minutes;
}
[[nodiscard]]
friend constexpr bool operator <= (time_offset lhs, time_offset rhs) noexcept
{
return lhs.minutes <= rhs.minutes;
}
[[nodiscard]]
friend constexpr bool operator > (time_offset lhs, time_offset rhs) noexcept
{
return lhs.minutes > rhs.minutes;
}
[[nodiscard]]
friend constexpr bool operator >= (time_offset lhs, time_offset rhs) noexcept
{
return lhs.minutes >= rhs.minutes;
}
};
template <typename Char>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>& lhs, const time_offset& rhs)
{
impl::print_to_stream(rhs, lhs);
return lhs;
}
#if !TOML_ALL_INLINE
extern template TOML_API std::ostream& operator << (std::ostream&, const time_offset&);
#endif
#ifdef TOML_OPTIONAL_TYPE
TOML_ABI_NAMESPACE_START(custopt)
#else
TOML_ABI_NAMESPACE_START(stdopt)
#endif
struct date_time
{
toml::date date;
toml::time time;
optional<toml::time_offset> time_offset;
TOML_NODISCARD_CTOR
constexpr date_time() noexcept
: date{},
time{}
{}
TOML_NODISCARD_CTOR
constexpr date_time(toml::date d, toml::time t) noexcept
: date{ d },
time{ t }
{}
TOML_NODISCARD_CTOR
constexpr date_time(toml::date d, toml::time t, toml::time_offset offset) noexcept
: date{ d },
time{ t },
time_offset{ offset }
{}
[[nodiscard]]
constexpr bool is_local() const noexcept
{
return !time_offset.has_value();
}
[[nodiscard]]
friend constexpr bool operator == (const date_time& lhs, const date_time& rhs) noexcept
{
return lhs.date == rhs.date
&& lhs.time == rhs.time
&& lhs.time_offset == rhs.time_offset;
}
[[nodiscard]]
friend constexpr bool operator != (const date_time& lhs, const date_time& rhs) noexcept
{
return !(lhs == rhs);
}
[[nodiscard]]
friend constexpr bool operator < (const date_time& lhs, const date_time& rhs) noexcept
{
if (lhs.date != rhs.date)
return lhs.date < rhs.date;
if (lhs.time != rhs.time)
return lhs.time < rhs.time;
return lhs.time_offset < rhs.time_offset;
}
[[nodiscard]]
friend constexpr bool operator <= (const date_time& lhs, const date_time& rhs) noexcept
{
if (lhs.date != rhs.date)
return lhs.date < rhs.date;
if (lhs.time != rhs.time)
return lhs.time < rhs.time;
return lhs.time_offset <= rhs.time_offset;
}
[[nodiscard]]
friend constexpr bool operator > (const date_time& lhs, const date_time& rhs) noexcept
{
return !(lhs <= rhs);
}
[[nodiscard]]
friend constexpr bool operator >= (const date_time& lhs, const date_time& rhs) noexcept
{
return !(lhs < rhs);
}
};
TOML_ABI_NAMESPACE_END // TOML_OPTIONAL_TYPE
template <typename Char>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>& lhs, const date_time& rhs)
{
impl::print_to_stream(rhs, lhs);
return lhs;
}
#if !TOML_ALL_INLINE
extern template TOML_API std::ostream& operator << (std::ostream&, const date_time&);
#endif
}
TOML_POP_WARNINGS // TOML_DISABLE_PADDING_WARNINGS
#pragma endregion
//----------------------------------------------------------------- ↑ toml_date_time.h -------------------------------
//--------------------------------------------------------------------------------------- ↓ toml_print_to_stream.h ---
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_ALL_WARNINGS
#include <cmath>
#if TOML_INT_CHARCONV || TOML_FLOAT_CHARCONV
#include <charconv>
#endif
#if !TOML_INT_CHARCONV || !TOML_FLOAT_CHARCONV
#include <sstream>
#endif
#if !TOML_INT_CHARCONV
#include <iomanip>
#endif
TOML_POP_WARNINGS
namespace toml::impl
{
// Q: "why does print_to_stream() exist? why not just use ostream::write(), ostream::put() etc?"
// A: - I'm supporting C++20's char8_t as well; wrapping streams allows switching string modes transparently.
// - I'm using <charconv> to format numerics. Faster and locale-independent.
// - I can avoid forcing users to drag in <sstream> and <iomanip>.
// Q: "there's a bit of reinterpret_casting here, is any of it UB?"
// A: - If the source string data is char and the output string is char8_t, then technically yes,
// but not in the other direction. I test in both modes on Clang, GCC and MSVC and have yet to
// see it actually causing an issue, but in the event it does present a problem it's not going to
// be a show-stopper since all it means is I need to do duplicate some code.
// - Strings in C++. Honestly.
template <typename Char1, typename Char2>
TOML_ALWAYS_INLINE
void print_to_stream(std::basic_string_view<Char1> str, std::basic_ostream<Char2>& stream)
{
static_assert(sizeof(Char1) == 1);
static_assert(sizeof(Char2) == 1);
stream.write(reinterpret_cast<const Char2*>(str.data()), static_cast<std::streamsize>(str.length()));
}
template <typename Char1, typename Char2>
TOML_ALWAYS_INLINE
void print_to_stream(const std::basic_string<Char1>& str, std::basic_ostream<Char2>& stream)
{
static_assert(sizeof(Char1) == 1);
static_assert(sizeof(Char2) == 1);
stream.write(reinterpret_cast<const Char2*>(str.data()), static_cast<std::streamsize>(str.length()));
}
template <typename Char>
TOML_ALWAYS_INLINE
void print_to_stream(char character, std::basic_ostream<Char>& stream)
{
static_assert(sizeof(Char) == 1);
stream.put(static_cast<Char>(character));
}
template <typename Char>
TOML_GNU_ATTR(nonnull)
TOML_ALWAYS_INLINE
void print_to_stream(const char* str, size_t len, std::basic_ostream<Char>& stream)
{
static_assert(sizeof(Char) == 1);
stream.write(reinterpret_cast<const Char*>(str), static_cast<std::streamsize>(len));
}
#if defined(__cpp_lib_char8_t)
template <typename Char>
TOML_ALWAYS_INLINE
void print_to_stream(char8_t character, std::basic_ostream<Char>& stream)
{
static_assert(sizeof(Char) == 1);
stream.put(static_cast<Char>(character));
}
template <typename Char>
TOML_GNU_ATTR(nonnull)
TOML_ALWAYS_INLINE
void print_to_stream(const char8_t* str, size_t len, std::basic_ostream<Char>& stream)
{
static_assert(sizeof(Char) == 1);
stream.write(reinterpret_cast<const Char*>(str), static_cast<std::streamsize>(len));
}
#endif
template <typename T> inline constexpr size_t charconv_buffer_length = 0;
template <> inline constexpr size_t charconv_buffer_length<double> = 60;
template <> inline constexpr size_t charconv_buffer_length<float> = 40;
template <> inline constexpr size_t charconv_buffer_length<uint64_t> = 20; // strlen("18446744073709551615")
template <> inline constexpr size_t charconv_buffer_length<int64_t> = 20; // strlen("-9223372036854775808")
template <> inline constexpr size_t charconv_buffer_length<int32_t> = 11; // strlen("-2147483648")
template <> inline constexpr size_t charconv_buffer_length<int16_t> = 6; // strlen("-32768")
template <> inline constexpr size_t charconv_buffer_length<int8_t> = 4; // strlen("-128")
template <> inline constexpr size_t charconv_buffer_length<uint32_t> = 10; // strlen("4294967295")
template <> inline constexpr size_t charconv_buffer_length<uint16_t> = 5; // strlen("65535")
template <> inline constexpr size_t charconv_buffer_length<uint8_t> = 3; // strlen("255")
template <typename T, typename Char>
inline void print_integer_to_stream(T val, std::basic_ostream<Char>& stream)
{
static_assert(
sizeof(Char) == 1,
"The stream's underlying character type must be 1 byte in size."
);
#if TOML_INT_CHARCONV
char buf[charconv_buffer_length<T>];
const auto res = std::to_chars(buf, buf + sizeof(buf), val);
const auto len = static_cast<size_t>(res.ptr - buf);
print_to_stream(buf, len, stream);
#else
std::ostringstream ss;
ss.imbue(std::locale::classic());
using cast_type = std::conditional_t<std::is_signed_v<T>, int64_t, uint64_t>;
ss << static_cast<cast_type>(val);
const auto str = std::move(ss).str();
print_to_stream(str, stream);
#endif
}
#define TOML_P2S_OVERLOAD(Type) \
template <typename Char> \
TOML_ALWAYS_INLINE \
void print_to_stream(Type val, std::basic_ostream<Char>& stream) \
{ \
static_assert(sizeof(Char) == 1); \
print_integer_to_stream(val, stream); \
}
TOML_P2S_OVERLOAD(int8_t)
TOML_P2S_OVERLOAD(int16_t)
TOML_P2S_OVERLOAD(int32_t)
TOML_P2S_OVERLOAD(int64_t)
TOML_P2S_OVERLOAD(uint8_t)
TOML_P2S_OVERLOAD(uint16_t)
TOML_P2S_OVERLOAD(uint32_t)
TOML_P2S_OVERLOAD(uint64_t)
#undef TOML_P2S_OVERLOAD
template <typename T, typename Char>
TOML_EXTERNAL_LINKAGE
void print_floating_point_to_stream(T val, std::basic_ostream<Char>& stream, bool hexfloat = false)
{
static_assert(
sizeof(Char) == 1,
"The stream's underlying character type must be 1 byte in size."
);
switch (std::fpclassify(val))
{
case FP_INFINITE:
if (val < T{})
print_to_stream('-', stream);
print_to_stream("inf"sv, stream);
return;
case FP_NAN:
print_to_stream("nan"sv, stream);
return;
default:
{
static constexpr auto needs_decimal_point = [](auto&& s) noexcept
{
for (auto c : s)
if (c == '.' || c == 'E' || c == 'e')
return false;
return true;
};
#if TOML_FLOAT_CHARCONV
{
char buf[charconv_buffer_length<T>];
const auto res = hexfloat
? std::to_chars(buf, buf + sizeof(buf), val, std::chars_format::hex)
: std::to_chars(buf, buf + sizeof(buf), val);
const auto str = std::string_view{ buf, static_cast<size_t>(res.ptr - buf) };
print_to_stream(str, stream);
if (!hexfloat && needs_decimal_point(str))
print_to_stream(".0"sv, stream);
}
#else
{
std::ostringstream ss;
ss.imbue(std::locale::classic());
ss.precision(std::numeric_limits<T>::digits10 + 1);
if (hexfloat)
ss << std::hexfloat;
ss << val;
const auto str = std::move(ss).str();
print_to_stream(str, stream);
if (!hexfloat && needs_decimal_point(str))
print_to_stream(".0"sv, stream);
}
#endif
}
}
}
#if !TOML_ALL_INLINE
extern template TOML_API void print_floating_point_to_stream(float, std::ostream&, bool);
extern template TOML_API void print_floating_point_to_stream(double, std::ostream&, bool);
#endif
#define TOML_P2S_OVERLOAD(Type) \
template <typename Char> \
TOML_ALWAYS_INLINE \
void print_to_stream(Type val, std::basic_ostream<Char>& stream) \
{ \
static_assert(sizeof(Char) == 1); \
print_floating_point_to_stream(val, stream); \
}
TOML_P2S_OVERLOAD(float)
TOML_P2S_OVERLOAD(double)
#undef TOML_P2S_OVERLOAD
template <typename Char>
TOML_ALWAYS_INLINE
void print_to_stream(bool val, std::basic_ostream<Char>& stream)
{
static_assert(sizeof(Char) == 1);
print_to_stream(val ? "true"sv : "false"sv, stream);
}
template <typename T, typename Char>
inline void print_to_stream(T val, std::basic_ostream<Char>& stream, size_t zero_pad_to_digits)
{
static_assert(sizeof(Char) == 1);
#if TOML_INT_CHARCONV
char buf[charconv_buffer_length<T>];
const auto res = std::to_chars(buf, buf + sizeof(buf), val);
const auto len = static_cast<size_t>(res.ptr - buf);
for (size_t i = len; i < zero_pad_to_digits; i++)
print_to_stream('0', stream);
print_to_stream(buf, static_cast<size_t>(res.ptr - buf), stream);
#else
std::ostringstream ss;
ss.imbue(std::locale::classic());
using cast_type = std::conditional_t<std::is_signed_v<T>, int64_t, uint64_t>;
ss << std::setfill('0') << std::setw(static_cast<int>(zero_pad_to_digits)) << static_cast<cast_type>(val);
const auto str = std::move(ss).str();
print_to_stream(str, stream);
#endif
}
template <typename Char>
inline void print_to_stream(const toml::date& val, std::basic_ostream<Char>& stream)
{
static_assert(sizeof(Char) == 1);
print_to_stream(val.year, stream, 4_sz);
print_to_stream('-', stream);
print_to_stream(val.month, stream, 2_sz);
print_to_stream('-', stream);
print_to_stream(val.day, stream, 2_sz);
}
template <typename Char>
inline void print_to_stream(const toml::time& val, std::basic_ostream<Char>& stream)
{
static_assert(sizeof(Char) == 1);
print_to_stream(val.hour, stream, 2_sz);
print_to_stream(':', stream);
print_to_stream(val.minute, stream, 2_sz);
print_to_stream(':', stream);
print_to_stream(val.second, stream, 2_sz);
if (val.nanosecond && val.nanosecond <= 999999999u)
{
print_to_stream('.', stream);
auto ns = val.nanosecond;
size_t digits = 9_sz;
while (ns % 10u == 0u)
{
ns /= 10u;
digits--;
}
print_to_stream(ns, stream, digits);
}
}
template <typename Char>
inline void print_to_stream(toml::time_offset val, std::basic_ostream<Char>& stream)
{
static_assert(sizeof(Char) == 1);
if (!val.minutes)
print_to_stream('Z', stream);
else
{
auto mins = static_cast<int>(val.minutes);
if (mins < 0)
{
print_to_stream('-', stream);
mins = -mins;
}
else
print_to_stream('+', stream);
const auto hours = mins / 60;
if (hours)
{
print_to_stream(static_cast<unsigned int>(hours), stream, 2_sz);
mins -= hours * 60;
}
else
print_to_stream("00"sv, stream);
print_to_stream(':', stream);
print_to_stream(static_cast<unsigned int>(mins), stream, 2_sz);
}
}
template <typename Char>
inline void print_to_stream(const toml::date_time& val, std::basic_ostream<Char>& stream)
{
static_assert(sizeof(Char) == 1);
print_to_stream(val.date, stream);
print_to_stream('T', stream);
print_to_stream(val.time, stream);
if (val.time_offset)
print_to_stream(*val.time_offset, stream);
}
TOML_PUSH_WARNINGS
TOML_DISABLE_ALL_WARNINGS
template <typename T, typename Char>
void print_to_stream_with_escapes(T && str, std::basic_ostream<Char>& stream)
{
static_assert(sizeof(Char) == 1);
for (auto c : str)
{
if TOML_UNLIKELY(c >= TOML_STRING_PREFIX('\x00') && c <= TOML_STRING_PREFIX('\x1F'))
print_to_stream(low_character_escape_table[c], stream);
else if TOML_UNLIKELY(c == TOML_STRING_PREFIX('\x7F'))
print_to_stream(TOML_STRING_PREFIX("\\u007F"sv), stream);
else if TOML_UNLIKELY(c == TOML_STRING_PREFIX('"'))
print_to_stream(TOML_STRING_PREFIX("\\\""sv), stream);
else if TOML_UNLIKELY(c == TOML_STRING_PREFIX('\\'))
print_to_stream(TOML_STRING_PREFIX("\\\\"sv), stream);
else
print_to_stream(c, stream);
}
}
TOML_POP_WARNINGS
}
namespace toml
{
template <typename Char>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>& lhs, const source_position& rhs)
{
static_assert(
sizeof(Char) == 1,
"The stream's underlying character type must be 1 byte in size."
);
impl::print_to_stream("line "sv, lhs);
impl::print_to_stream(rhs.line, lhs);
impl::print_to_stream(", column "sv, lhs);
impl::print_to_stream(rhs.column, lhs);
return lhs;
}
template <typename Char>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>& lhs, const source_region& rhs)
{
static_assert(
sizeof(Char) == 1,
"The stream's underlying character type must be 1 byte in size."
);
lhs << rhs.begin;
if (rhs.path)
{
impl::print_to_stream(" of '"sv, lhs);
impl::print_to_stream(*rhs.path, lhs);
impl::print_to_stream('\'', lhs);
}
return lhs;
}
#if !TOML_ALL_INLINE
extern template TOML_API std::ostream& operator << (std::ostream&, const source_position&);
extern template TOML_API std::ostream& operator << (std::ostream&, const source_region&);
#endif
}
#pragma endregion
//--------------------------------------------------------------------------------------- ↑ toml_print_to_stream.h ---
//------------------ ↓ toml_node.h -----------------------------------------------------------------------------------
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_VTABLE_WARNINGS
namespace toml
{
class TOML_INTERFACE TOML_API node
{
private:
friend class TOML_PARSER_TYPENAME;
source_region source_{};
protected:
node(node&& other) noexcept;
node& operator= (node&& rhs) noexcept;
template <typename T>
[[nodiscard]] TOML_ALWAYS_INLINE
impl::node_of<T>& ref_cast() & noexcept
{
return *reinterpret_cast<impl::node_of<T>*>(this);
}
template <typename T>
[[nodiscard]] TOML_ALWAYS_INLINE
impl::node_of<T>&& ref_cast() && noexcept
{
return std::move(*reinterpret_cast<impl::node_of<T>*>(this));
}
template <typename T>
[[nodiscard]] TOML_ALWAYS_INLINE
const impl::node_of<T>& ref_cast() const & noexcept
{
return *reinterpret_cast<const impl::node_of<T>*>(this);
}
template <typename N, typename T>
using ref_cast_type = decltype(std::declval<N>().template ref_cast<T>());
node() noexcept = default;
node(const node&) = delete;
node& operator= (const node&) = delete;
public:
virtual ~node() noexcept = default;
[[nodiscard]] virtual node_type type() const noexcept = 0;
[[nodiscard]] virtual bool is_table() const noexcept = 0;
[[nodiscard]] virtual bool is_array() const noexcept = 0;
[[nodiscard]] virtual bool is_value() const noexcept = 0;
[[nodiscard]] virtual bool is_string() const noexcept;
[[nodiscard]] virtual bool is_integer() const noexcept;
[[nodiscard]] virtual bool is_floating_point() const noexcept;
[[nodiscard]] virtual bool is_number() const noexcept;
[[nodiscard]] virtual bool is_boolean() const noexcept;
[[nodiscard]] virtual bool is_date() const noexcept;
[[nodiscard]] virtual bool is_time() const noexcept;
[[nodiscard]] virtual bool is_date_time() const noexcept;
[[nodiscard]] virtual bool is_array_of_tables() const noexcept;
template <typename T>
[[nodiscard]] TOML_ALWAYS_INLINE
bool is() const noexcept
{
using type = impl::unwrapped<impl::remove_cvref_t<T>>;
static_assert(
impl::is_value_or_node<type>,
"Template type parameter must be one of the TOML value types, a toml::table, or a toml::array"
);
if constexpr (std::is_same_v<type, table>) return is_table();
else if constexpr (std::is_same_v<type, array>) return is_array();
else if constexpr (std::is_same_v<type, string>) return is_string();
else if constexpr (std::is_same_v<type, int64_t>) return is_integer();
else if constexpr (std::is_same_v<type, double>) return is_floating_point();
else if constexpr (std::is_same_v<type, bool>) return is_boolean();
else if constexpr (std::is_same_v<type, date>) return is_date();
else if constexpr (std::is_same_v<type, time>) return is_time();
else if constexpr (std::is_same_v<type, date_time>) return is_date_time();
}
[[nodiscard]] virtual table* as_table() noexcept;
[[nodiscard]] virtual array* as_array() noexcept;
[[nodiscard]] virtual toml::value<string>* as_string() noexcept;
[[nodiscard]] virtual toml::value<int64_t>* as_integer() noexcept;
[[nodiscard]] virtual toml::value<double>* as_floating_point() noexcept;
[[nodiscard]] virtual toml::value<bool>* as_boolean() noexcept;
[[nodiscard]] virtual toml::value<date>* as_date() noexcept;
[[nodiscard]] virtual toml::value<time>* as_time() noexcept;
[[nodiscard]] virtual toml::value<date_time>* as_date_time() noexcept;
[[nodiscard]] virtual const table* as_table() const noexcept;
[[nodiscard]] virtual const array* as_array() const noexcept;
[[nodiscard]] virtual const toml::value<string>* as_string() const noexcept;
[[nodiscard]] virtual const toml::value<int64_t>* as_integer() const noexcept;
[[nodiscard]] virtual const toml::value<double>* as_floating_point() const noexcept;
[[nodiscard]] virtual const toml::value<bool>* as_boolean() const noexcept;
[[nodiscard]] virtual const toml::value<date>* as_date() const noexcept;
[[nodiscard]] virtual const toml::value<time>* as_time() const noexcept;
[[nodiscard]] virtual const toml::value<date_time>* as_date_time() const noexcept;
template <typename T>
[[nodiscard]] optional<T> value() const noexcept;
template <typename T>
[[nodiscard]] auto value_or(T&& default_value) const noexcept;
template <typename T>
[[nodiscard]] TOML_ALWAYS_INLINE
impl::node_of<T>* as() noexcept
{
using type = impl::unwrapped<T>;
static_assert(
impl::is_value_or_node<type>,
"Template type parameter must be one of the TOML value types, a toml::table, or a toml::array"
);
if constexpr (std::is_same_v<type, table>) return as_table();
else if constexpr (std::is_same_v<type, array>) return as_array();
else if constexpr (std::is_same_v<type, string>) return as_string();
else if constexpr (std::is_same_v<type, int64_t>) return as_integer();
else if constexpr (std::is_same_v<type, double>) return as_floating_point();
else if constexpr (std::is_same_v<type, bool>) return as_boolean();
else if constexpr (std::is_same_v<type, date>) return as_date();
else if constexpr (std::is_same_v<type, time>) return as_time();
else if constexpr (std::is_same_v<type, date_time>) return as_date_time();
}
template <typename T>
[[nodiscard]] TOML_ALWAYS_INLINE
const impl::node_of<T>* as() const noexcept
{
using type = impl::unwrapped<T>;
static_assert(
impl::is_value_or_node<type>,
"Template type parameter must be one of the TOML value types, a toml::table, or a toml::array"
);
if constexpr (std::is_same_v<type, table>) return as_table();
else if constexpr (std::is_same_v<type, array>) return as_array();
else if constexpr (std::is_same_v<type, string>) return as_string();
else if constexpr (std::is_same_v<type, int64_t>) return as_integer();
else if constexpr (std::is_same_v<type, double>) return as_floating_point();
else if constexpr (std::is_same_v<type, bool>) return as_boolean();
else if constexpr (std::is_same_v<type, date>) return as_date();
else if constexpr (std::is_same_v<type, time>) return as_time();
else if constexpr (std::is_same_v<type, date_time>) return as_date_time();
}
[[nodiscard]] const source_region& source() const noexcept;
private:
template <typename Func, typename N, typename T>
static constexpr bool can_visit = std::is_invocable_v<Func, ref_cast_type<N, T>>;
template <typename Func, typename N>
static constexpr bool can_visit_any =
can_visit<Func, N, table>
|| can_visit<Func, N, array>
|| can_visit<Func, N, string>
|| can_visit<Func, N, int64_t>
|| can_visit<Func, N, double>
|| can_visit<Func, N, bool>
|| can_visit<Func, N, date>
|| can_visit<Func, N, time>
|| can_visit<Func, N, date_time>;
template <typename Func, typename N>
static constexpr bool can_visit_all =
can_visit<Func, N, table>
&& can_visit<Func, N, array>
&& can_visit<Func, N, string>
&& can_visit<Func, N, int64_t>
&& can_visit<Func, N, double>
&& can_visit<Func, N, bool>
&& can_visit<Func, N, date>
&& can_visit<Func, N, time>
&& can_visit<Func, N, date_time>;
template <typename Func, typename N, typename T>
static constexpr bool visit_is_nothrow_one =
!can_visit<Func, N, T>
|| std::is_nothrow_invocable_v<Func, ref_cast_type<N, T>>;
template <typename Func, typename N>
static constexpr bool visit_is_nothrow =
visit_is_nothrow_one<Func, N, table>
&& visit_is_nothrow_one<Func, N, array>
&& visit_is_nothrow_one<Func, N, string>
&& visit_is_nothrow_one<Func, N, int64_t>
&& visit_is_nothrow_one<Func, N, double>
&& visit_is_nothrow_one<Func, N, bool>
&& visit_is_nothrow_one<Func, N, date>
&& visit_is_nothrow_one<Func, N, time>
&& visit_is_nothrow_one<Func, N, date_time>;
template <typename Func, typename N, typename T, bool = can_visit<Func, N, T>>
struct visit_return_type final
{
using type = decltype(std::declval<Func>()(std::declval<ref_cast_type<N, T>>()));
};
template <typename Func, typename N, typename T>
struct visit_return_type<Func, N, T, false> final
{
using type = void;
};
template <typename A, typename B>
using nonvoid = std::conditional_t<std::is_void_v<A>, B, A>;
template <typename N, typename Func>
static decltype(auto) do_visit(N&& n, Func&& visitor)
noexcept(visit_is_nothrow<Func&&, N&&>)
{
static_assert(
can_visit_any<Func&&, N&&>,
"Visitors must be invocable for at least one of the toml::node specializations"
);
switch (n.type())
{
case node_type::table:
if constexpr (can_visit<Func&&, N&&, table>)
return std::forward<Func>(visitor)(std::forward<N>(n).template ref_cast<table>());
break;
case node_type::array:
if constexpr (can_visit<Func&&, N&&, array>)
return std::forward<Func>(visitor)(std::forward<N>(n).template ref_cast<array>());
break;
case node_type::string:
if constexpr (can_visit<Func&&, N&&, string>)
return std::forward<Func>(visitor)(std::forward<N>(n).template ref_cast<string>());
break;
case node_type::integer:
if constexpr (can_visit<Func&&, N&&, int64_t>)
return std::forward<Func>(visitor)(std::forward<N>(n).template ref_cast<int64_t>());
break;
case node_type::floating_point:
if constexpr (can_visit<Func&&, N&&, double>)
return std::forward<Func>(visitor)(std::forward<N>(n).template ref_cast<double>());
break;
case node_type::boolean:
if constexpr (can_visit<Func&&, N&&, bool>)
return std::forward<Func>(visitor)(std::forward<N>(n).template ref_cast<bool>());
break;
case node_type::date:
if constexpr (can_visit<Func&&, N&&, date>)
return std::forward<Func>(visitor)(std::forward<N>(n).template ref_cast<date>());
break;
case node_type::time:
if constexpr (can_visit<Func&&, N&&, time>)
return std::forward<Func>(visitor)(std::forward<N>(n).template ref_cast<time>());
break;
case node_type::date_time:
if constexpr (can_visit<Func&&, N&&, date_time>)
return std::forward<Func>(visitor)(std::forward<N>(n).template ref_cast<date_time>());
break;
case node_type::none: TOML_UNREACHABLE;
TOML_NO_DEFAULT_CASE;
}
if constexpr (can_visit_all<Func&&, N&&>)
TOML_UNREACHABLE;
else
{
using return_type =
nonvoid<typename visit_return_type<Func&&, N&&, table>::type,
nonvoid<typename visit_return_type<Func&&, N&&, array>::type,
nonvoid<typename visit_return_type<Func&&, N&&, string>::type,
nonvoid<typename visit_return_type<Func&&, N&&, int64_t>::type,
nonvoid<typename visit_return_type<Func&&, N&&, double>::type,
nonvoid<typename visit_return_type<Func&&, N&&, bool>::type,
nonvoid<typename visit_return_type<Func&&, N&&, date>::type,
nonvoid<typename visit_return_type<Func&&, N&&, time>::type,
typename visit_return_type<Func&&, N&&, date_time>::type
>>>>>>>>;
if constexpr (!std::is_void_v<return_type>)
{
static_assert(
std::is_default_constructible_v<return_type>,
"Non-exhaustive visitors must return a default-constructible type, or void"
);
return return_type{};
}
}
}
template <typename T, typename N>
[[nodiscard]] static decltype(auto) do_ref(N&& n) noexcept
{
using type = impl::unwrapped<T>;
static_assert(
impl::is_value_or_node<type>,
"Template type parameter must be one of the TOML value types, a toml::table, or a toml::array"
);
TOML_ASSERT(
n.template is<T>()
&& "template type argument T provided to toml::node::ref() didn't match the node's actual type"
);
if constexpr (impl::is_value<type>)
return std::forward<N>(n).template ref_cast<type>().get();
else
return std::forward<N>(n).template ref_cast<type>();
}
public:
template <typename Func>
decltype(auto) visit(Func&& visitor) & noexcept(visit_is_nothrow<Func&&, node&>)
{
return do_visit(*this, std::forward<Func>(visitor));
}
template <typename Func>
decltype(auto) visit(Func&& visitor) && noexcept(visit_is_nothrow<Func&&, node&&>)
{
return do_visit(std::move(*this), std::forward<Func>(visitor));
}
template <typename Func>
decltype(auto) visit(Func&& visitor) const& noexcept(visit_is_nothrow<Func&&, const node&>)
{
return do_visit(*this, std::forward<Func>(visitor));
}
template <typename T>
[[nodiscard]] impl::unwrapped<T>& ref() & noexcept
{
return do_ref<T>(*this);
}
template <typename T>
[[nodiscard]] impl::unwrapped<T>&& ref() && noexcept
{
return do_ref<T>(std::move(*this));
}
template <typename T>
[[nodiscard]] const impl::unwrapped<T>& ref() const& noexcept
{
return do_ref<T>(*this);
}
};
}
TOML_POP_WARNINGS //TOML_DISABLE_VTABLE_WARNINGS
#pragma endregion
//------------------ ↑ toml_node.h -----------------------------------------------------------------------------------
//------------------------------------------ ↓ toml_value.h ----------------------------------------------------------
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_FLOAT_WARNINGS
TOML_DISABLE_PADDING_WARNINGS
namespace toml
{
template <typename Char, typename T>
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>&, const value<T>&);
template <typename T>
class TOML_API value final : public node
{
static_assert(
impl::is_value<T>,
"Template type parameter must be one of the TOML value types"
);
private:
friend class TOML_PARSER_TYPENAME;
template <typename U, typename V>
[[nodiscard]] TOML_ALWAYS_INLINE
static auto as_value([[maybe_unused]] V* ptr) noexcept
{
if constexpr (std::is_same_v<T, U>)
return ptr;
else
return nullptr;
}
T val_;
public:
using value_type = T;
using value_arg = std::conditional_t<
std::is_same_v<T, string>,
string_view,
std::conditional_t<impl::is_one_of<T, double, int64_t, bool>, T, const T&>
>;
template <typename... U>
TOML_NODISCARD_CTOR
explicit value(U&&... args) noexcept(std::is_nothrow_constructible_v<T, U&&...>)
: val_{ std::forward<U>(args)... }
{}
TOML_NODISCARD_CTOR
value(value&& other) noexcept
: node{ std::move(other) },
val_{ std::move(other.val_) }
{}
value& operator= (value&& rhs) noexcept
{
node::operator=(std::move(rhs));
val_ = std::move(rhs.val_);
return *this;
}
value(const value&) = delete;
value& operator= (const value&) = delete;
[[nodiscard]] node_type type() const noexcept override { return impl::node_type_of<T>; }
[[nodiscard]] bool is_table() const noexcept override { return false; }
[[nodiscard]] bool is_array() const noexcept override { return false; }
[[nodiscard]] bool is_value() const noexcept override { return true; }
[[nodiscard]] bool is_string() const noexcept override { return std::is_same_v<T, string>; }
[[nodiscard]] bool is_integer() const noexcept override { return std::is_same_v<T, int64_t>; }
[[nodiscard]] bool is_floating_point() const noexcept override { return std::is_same_v<T, double>; }
[[nodiscard]] bool is_number() const noexcept override { return impl::is_one_of<T, int64_t, double>; }
[[nodiscard]] bool is_boolean() const noexcept override { return std::is_same_v<T, bool>; }
[[nodiscard]] bool is_date() const noexcept override { return std::is_same_v<T, date>; }
[[nodiscard]] bool is_time() const noexcept override { return std::is_same_v<T, time>; }
[[nodiscard]] bool is_date_time() const noexcept override { return std::is_same_v<T, date_time>; }
[[nodiscard]] value<string>* as_string() noexcept override { return as_value<string>(this); }
[[nodiscard]] value<int64_t>* as_integer() noexcept override { return as_value<int64_t>(this); }
[[nodiscard]] value<double>* as_floating_point() noexcept override { return as_value<double>(this); }
[[nodiscard]] value<bool>* as_boolean() noexcept override { return as_value<bool>(this); }
[[nodiscard]] value<date>* as_date() noexcept override { return as_value<date>(this); }
[[nodiscard]] value<time>* as_time() noexcept override { return as_value<time>(this); }
[[nodiscard]] value<date_time>* as_date_time() noexcept override { return as_value<date_time>(this); }
[[nodiscard]] const value<string>* as_string() const noexcept override { return as_value<string>(this); }
[[nodiscard]] const value<int64_t>* as_integer() const noexcept override { return as_value<int64_t>(this); }
[[nodiscard]] const value<double>* as_floating_point() const noexcept override { return as_value<double>(this); }
[[nodiscard]] const value<bool>* as_boolean() const noexcept override { return as_value<bool>(this); }
[[nodiscard]] const value<date>* as_date() const noexcept override { return as_value<date>(this); }
[[nodiscard]] const value<time>* as_time() const noexcept override { return as_value<time>(this); }
[[nodiscard]] const value<date_time>* as_date_time() const noexcept override { return as_value<date_time>(this); }
[[nodiscard]] T& get() & noexcept { return val_; }
[[nodiscard]] T&& get() && noexcept { return std::move(val_); }
[[nodiscard]] const T& get() const & noexcept { return val_; }
[[nodiscard]] T& operator* () & noexcept { return val_; }
[[nodiscard]] T&& operator* () && noexcept { return std::move(val_); }
[[nodiscard]] const T& operator* () const& noexcept { return val_; }
[[nodiscard]] explicit operator T& () & noexcept { return val_; }
[[nodiscard]] explicit operator T&& () && noexcept { return std::move(val_); }
[[nodiscard]] explicit operator const T& () const& noexcept { return val_; }
template <typename Char, typename U>
friend std::basic_ostream<Char>& operator << (std::basic_ostream<Char>& lhs, const value<U>& rhs);
value& operator= (value_arg rhs) noexcept
{
if constexpr (std::is_same_v<T, string>)
val_.assign(rhs);
else
val_ = rhs;
return *this;
}
template <typename U = T, typename = std::enable_if_t<std::is_same_v<U, string>>>
value& operator= (string&& rhs) noexcept
{
val_ = std::move(rhs);
return *this;
}
[[nodiscard]] friend bool operator == (const value& lhs, value_arg rhs) noexcept { return lhs.val_ == rhs; }
TOML_ASYMMETRICAL_EQUALITY_OPS(const value&, value_arg, )
[[nodiscard]] friend bool operator < (const value& lhs, value_arg rhs) noexcept { return lhs.val_ < rhs; }
[[nodiscard]] friend bool operator < (value_arg lhs, const value& rhs) noexcept { return lhs < rhs.val_; }
[[nodiscard]] friend bool operator <= (const value& lhs, value_arg rhs) noexcept { return lhs.val_ <= rhs; }
[[nodiscard]] friend bool operator <= (value_arg lhs, const value& rhs) noexcept { return lhs <= rhs.val_; }
[[nodiscard]] friend bool operator > (const value& lhs, value_arg rhs) noexcept { return lhs.val_ > rhs; }
[[nodiscard]] friend bool operator > (value_arg lhs, const value& rhs) noexcept { return lhs > rhs.val_; }
[[nodiscard]] friend bool operator >= (const value& lhs, value_arg rhs) noexcept { return lhs.val_ >= rhs; }
[[nodiscard]] friend bool operator >= (value_arg lhs, const value& rhs) noexcept { return lhs >= rhs.val_; }
template <typename U>
[[nodiscard]] friend bool operator == (const value& lhs, const value<U>& rhs) noexcept
{
if constexpr (std::is_same_v<T, U>)
return lhs.val_ == rhs.val_;
else
return false;
}
template <typename U>
[[nodiscard]] friend bool operator != (const value& lhs, const value<U>& rhs) noexcept
{
return !(lhs == rhs);
}
template <typename U>
[[nodiscard]] friend bool operator < (const value& lhs, const value<U>& rhs) noexcept
{
if constexpr (std::is_same_v<T, U>)
return lhs.val_ < rhs.val_;
else
return impl::node_type_of<T> < impl::node_type_of<U>;
}
template <typename U>
[[nodiscard]] friend bool operator <= (const value& lhs, const value<U>& rhs) noexcept
{
if constexpr (std::is_same_v<T, U>)
return lhs.val_ <= rhs.val_;
else
return impl::node_type_of<T> <= impl::node_type_of<U>;
}
template <typename U>
[[nodiscard]] friend bool operator > (const value& lhs, const value<U>& rhs) noexcept
{
if constexpr (std::is_same_v<T, U>)
return lhs.val_ > rhs.val_;
else
return impl::node_type_of<T> > impl::node_type_of<U>;
}
template <typename U>
[[nodiscard]] friend bool operator >= (const value& lhs, const value<U>& rhs) noexcept
{
if constexpr (std::is_same_v<T, U>)
return lhs.val_ >= rhs.val_;
else
return impl::node_type_of<T> >= impl::node_type_of<U>;
}
};
#if !TOML_ALL_INLINE
TOML_PUSH_WARNINGS
TOML_DISABLE_VTABLE_WARNINGS
extern template class TOML_API value<string>;
extern template class TOML_API value<int64_t>;
extern template class TOML_API value<double>;
extern template class TOML_API value<bool>;
extern template class TOML_API value<date>;
extern template class TOML_API value<time>;
extern template class TOML_API value<date_time>;
TOML_POP_WARNINGS
#endif
template <size_t N> value(const string_char(&)[N]) -> value<string>;
template <size_t N> value(const string_char(&&)[N]) -> value<string>;
value(const string_char*) -> value<string>;
template <size_t N> value(string_char(&)[N]) -> value<string>;
template <size_t N> value(string_char(&&)[N]) -> value<string>;
value(string_char*) -> value<string>;
value(string_view) -> value<string>;
value(string) -> value<string>;
value(bool) -> value<bool>;
value(float) -> value<double>;
value(double) -> value<double>;
value(int8_t) -> value<int64_t>;
value(int16_t) -> value<int64_t>;
value(int32_t) -> value<int64_t>;
value(int64_t) -> value<int64_t>;
value(uint8_t) -> value<int64_t>;
value(uint16_t) -> value<int64_t>;
value(uint32_t) -> value<int64_t>;
value(date) -> value<date>;
value(time) -> value<time>;
value(date_time) -> value<date_time>;
#ifdef TOML_SMALL_FLOAT_TYPE
value(TOML_SMALL_FLOAT_TYPE) -> value<double>;
#endif
#ifdef TOML_SMALL_INT_TYPE
value(TOML_SMALL_INT_TYPE) -> value<int64_t>;
#endif
template <typename Char, typename T>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>& lhs, const value<T>& rhs)
{
// this is the same behaviour as default_formatter, but it's so simple that there's
// no need to spin up a new instance of it just for individual values.
if constexpr (std::is_same_v<T, string>)
{
impl::print_to_stream('"', lhs);
impl::print_to_stream_with_escapes(rhs.val_, lhs);
impl::print_to_stream('"', lhs);
}
else
impl::print_to_stream(rhs.val_, lhs);
return lhs;
}
#if !TOML_ALL_INLINE
extern template TOML_API std::ostream& operator << (std::ostream&, const value<toml::string>&);
extern template TOML_API std::ostream& operator << (std::ostream&, const value<int64_t>&);
extern template TOML_API std::ostream& operator << (std::ostream&, const value<double>&);
extern template TOML_API std::ostream& operator << (std::ostream&, const value<bool>&);
extern template TOML_API std::ostream& operator << (std::ostream&, const value<toml::date>&);
extern template TOML_API std::ostream& operator << (std::ostream&, const value<toml::time>&);
extern template TOML_API std::ostream& operator << (std::ostream&, const value<toml::date_time>&);
#endif
TOML_PUSH_WARNINGS
TOML_DISABLE_INIT_WARNINGS
template <typename T>
inline optional<T> node::value() const noexcept
{
static_assert(
impl::is_value<T> || std::is_same_v<T, string_view>,
"Value type must be one of the TOML value types (or string_view)"
);
switch (type())
{
case node_type::none: [[fallthrough]];
case node_type::table: [[fallthrough]];
case node_type::array:
return {};
case node_type::string:
{
if constexpr (std::is_same_v<T, string> || std::is_same_v<T, string_view>)
return { T{ ref_cast<string>().get() } };
else
return {};
}
case node_type::integer:
{
if constexpr (std::is_same_v<T, int64_t>)
return ref_cast<int64_t>().get();
else if constexpr (std::is_same_v<T, double>)
return static_cast<double>(ref_cast<int64_t>().get());
else
return {};
}
case node_type::floating_point:
{
if constexpr (std::is_same_v<T, double>)
return ref_cast<double>().get();
else if constexpr (std::is_same_v<T, int64_t>)
return static_cast<int64_t>(ref_cast<double>().get());
else
return {};
}
case node_type::boolean:
{
if constexpr (std::is_same_v<T, bool>)
return ref_cast<bool>().get();
else
return {};
}
case node_type::date:
{
if constexpr (std::is_same_v<T, date>)
return ref_cast<date>().get();
else
return {};
}
case node_type::time:
{
if constexpr (std::is_same_v<T, time>)
return ref_cast<time>().get();
else
return {};
}
case node_type::date_time:
{
if constexpr (std::is_same_v<T, date_time>)
return ref_cast<date_time>().get();
else
return {};
}
TOML_NO_DEFAULT_CASE;
}
TOML_UNREACHABLE;
}
TOML_POP_WARNINGS
template <typename T>
inline auto node::value_or(T&& default_value) const noexcept
{
static_assert(
impl::is_value_or_promotable<impl::remove_cvref_t<T>>,
"Default value type must be (or be promotable to) one of the TOML value types"
);
using value_type = impl::promoted<impl::remove_cvref_t<T>>;
using return_type = std::conditional_t<
std::is_same_v<value_type, string>,
std::conditional_t<std::is_same_v<impl::remove_cvref_t<T>, string>, string, string_view>,
value_type
>;
if (auto val = this->value<return_type>())
return *val;
return return_type{ std::forward<T>(default_value) };
}
}
TOML_POP_WARNINGS // TOML_DISABLE_FLOAT_WARNINGS, TOML_DISABLE_PADDING_WARNINGS
#pragma endregion
//------------------------------------------ ↑ toml_value.h ----------------------------------------------------------
//------------------------------------------------------------------- ↓ toml_array.h ---------------------------------
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_VTABLE_WARNINGS
namespace toml::impl
{
template <bool IsConst>
class array_iterator final
{
private:
friend class ::toml::array;
using raw_mutable_iterator = std::vector<std::unique_ptr<node>>::iterator;
using raw_const_iterator = std::vector<std::unique_ptr<node>>::const_iterator;
using raw_iterator = std::conditional_t<IsConst, raw_const_iterator, raw_mutable_iterator>;
mutable raw_iterator raw_;
array_iterator(raw_mutable_iterator raw) noexcept
: raw_{ raw }
{}
template <bool C = IsConst, typename = std::enable_if_t<C>>
TOML_NODISCARD_CTOR
array_iterator(raw_const_iterator raw) noexcept
: raw_{ raw }
{}
public:
using value_type = std::conditional_t<IsConst, const node, node>;
using reference = value_type&;
using pointer = value_type*;
using difference_type = ptrdiff_t;
array_iterator() noexcept = default;
array_iterator(const array_iterator&) noexcept = default;
array_iterator& operator = (const array_iterator&) noexcept = default;
array_iterator& operator++() noexcept // ++pre
{
++raw_;
return *this;
}
array_iterator operator++(int) noexcept // post++
{
array_iterator out{ raw_ };
++raw_;
return out;
}
array_iterator& operator--() noexcept // --pre
{
--raw_;
return *this;
}
array_iterator operator--(int) noexcept // post--
{
array_iterator out{ raw_ };
--raw_;
return out;
}
[[nodiscard]]
reference operator * () const noexcept
{
return *raw_->get();
}
[[nodiscard]]
pointer operator -> () const noexcept
{
return raw_->get();
}
array_iterator& operator += (ptrdiff_t rhs) noexcept
{
raw_ += rhs;
return *this;
}
array_iterator& operator -= (ptrdiff_t rhs) noexcept
{
raw_ -= rhs;
return *this;
}
[[nodiscard]]
friend constexpr array_iterator operator + (const array_iterator& lhs, ptrdiff_t rhs) noexcept
{
return { lhs.raw_ + rhs };
}
[[nodiscard]]
friend constexpr array_iterator operator + (ptrdiff_t lhs, const array_iterator& rhs) noexcept
{
return { rhs.raw_ + lhs };
}
[[nodiscard]]
friend constexpr array_iterator operator - (const array_iterator& lhs, ptrdiff_t rhs) noexcept
{
return { lhs.raw_ - rhs };
}
[[nodiscard]]
friend constexpr ptrdiff_t operator - (const array_iterator& lhs, const array_iterator& rhs) noexcept
{
return lhs.raw_ - rhs.raw_;
}
[[nodiscard]]
friend constexpr bool operator == (const array_iterator& lhs, const array_iterator& rhs) noexcept
{
return lhs.raw_ == rhs.raw_;
}
[[nodiscard]]
friend constexpr bool operator != (const array_iterator& lhs, const array_iterator& rhs) noexcept
{
return lhs.raw_ != rhs.raw_;
}
[[nodiscard]]
friend constexpr bool operator < (const array_iterator& lhs, const array_iterator& rhs) noexcept
{
return lhs.raw_ < rhs.raw_;
}
[[nodiscard]]
friend constexpr bool operator <= (const array_iterator& lhs, const array_iterator& rhs) noexcept
{
return lhs.raw_ <= rhs.raw_;
}
[[nodiscard]]
friend constexpr bool operator > (const array_iterator& lhs, const array_iterator& rhs) noexcept
{
return lhs.raw_ > rhs.raw_;
}
[[nodiscard]]
friend constexpr bool operator >= (const array_iterator& lhs, const array_iterator& rhs) noexcept
{
return lhs.raw_ >= rhs.raw_;
}
[[nodiscard]]
reference operator[] (ptrdiff_t idx) const noexcept
{
return *(raw_ + idx)->get();
}
template <bool C = IsConst, typename = std::enable_if_t<!C>>
[[nodiscard]]
operator array_iterator<true>() const noexcept
{
return array_iterator<true>{ raw_ };
}
};
template <typename T>
[[nodiscard]]
TOML_ALWAYS_INLINE
auto make_node(T&& val) noexcept
{
using type = unwrapped<remove_cvref_t<T>>;
if constexpr (is_one_of<type, array, table>)
{
static_assert(
std::is_rvalue_reference_v<decltype(val)>,
"Tables and arrays may only be moved (not copied)."
);
return new type{ std::forward<T>(val) };
}
else
{
static_assert(
is_value_or_promotable<type>,
"Value initializers must be (or be promotable to) one of the TOML value types"
);
return new value{ std::forward<T>(val) };
}
}
}
namespace toml
{
[[nodiscard]] TOML_API bool operator == (const array& lhs, const array& rhs) noexcept;
[[nodiscard]] TOML_API bool operator != (const array& lhs, const array& rhs) noexcept;
template <typename Char>
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>&, const array&);
using array_iterator = impl::array_iterator<false>;
using const_array_iterator = impl::array_iterator<true>;
class TOML_API array final
: public node
{
private:
friend class TOML_PARSER_TYPENAME;
std::vector<std::unique_ptr<node>> values;
void preinsertion_resize(size_t idx, size_t count) noexcept;
public:
using value_type = node;
using size_type = size_t;
using difference_type = ptrdiff_t;
using reference = node&;
using const_reference = const node&;
using iterator = array_iterator;
using const_iterator = const_array_iterator;
TOML_NODISCARD_CTOR
array() noexcept;
TOML_NODISCARD_CTOR
array(array&& other) noexcept;
template <typename U, typename... V>
TOML_NODISCARD_CTOR
explicit array(U&& val, V&&... vals)
{
values.reserve(sizeof...(V) + 1_sz);
values.emplace_back(impl::make_node(std::forward<U>(val)));
if constexpr (sizeof...(V) > 0)
{
(
values.emplace_back(impl::make_node(std::forward<V>(vals))),
...
);
}
}
array& operator= (array&& rhs) noexcept;
array(const array&) = delete;
array& operator= (const array&) = delete;
[[nodiscard]] node_type type() const noexcept override;
[[nodiscard]] bool is_table() const noexcept override;
[[nodiscard]] bool is_array() const noexcept override;
[[nodiscard]] bool is_value() const noexcept override;
[[nodiscard]] array* as_array() noexcept override;
[[nodiscard]] const array* as_array() const noexcept override;
template <typename T = void>
[[nodiscard]] bool is_homogeneous() const noexcept
{
if (values.empty())
return false;
if constexpr (std::is_same_v<T, void>)
{
const auto type = values[0]->type();
for (size_t i = 1; i < values.size(); i++)
if (values[i]->type() != type)
return false;
}
else
{
for (auto& v : values)
if (!v->is<T>())
return false;
}
return true;
}
[[nodiscard]] TOML_ALWAYS_INLINE
bool is_array_of_tables() const noexcept override
{
return is_homogeneous<toml::table>();
}
[[nodiscard]] node& operator[] (size_t index) noexcept;
[[nodiscard]] const node& operator[] (size_t index) const noexcept;
[[nodiscard]] node& front() noexcept;
[[nodiscard]] const node& front() const noexcept;
[[nodiscard]] node& back() noexcept;
[[nodiscard]] const node& back() const noexcept;
[[nodiscard]] iterator begin() noexcept;
[[nodiscard]] const_iterator begin() const noexcept;
[[nodiscard]] const_iterator cbegin() const noexcept;
[[nodiscard]] iterator end() noexcept;
[[nodiscard]] const_iterator end() const noexcept;
[[nodiscard]] const_iterator cend() const noexcept;
[[nodiscard]] bool empty() const noexcept;
[[nodiscard]] size_t size() const noexcept;
void reserve(size_t new_capacity);
void clear() noexcept;
[[nodiscard]] size_t max_size() const noexcept;
[[nodiscard]] size_t capacity() const noexcept;
void shrink_to_fit();
template <typename U>
iterator insert(const_iterator pos, U&& val) noexcept
{
return { values.emplace(pos.raw_, impl::make_node(std::forward<U>(val))) };
}
template <typename U>
iterator insert(const_iterator pos, size_t count, U&& val) noexcept
{
switch (count)
{
case 0: return { values.begin() + (pos.raw_ - values.cbegin()) };
case 1: return insert(pos, std::forward<U>(val));
default:
{
const auto start_idx = static_cast<size_t>(pos.raw_ - values.cbegin());
preinsertion_resize(start_idx, count);
size_t i = start_idx;
for (size_t e = start_idx + count - 1_sz; i < e; i++)
values[i].reset(impl::make_node(val));
values[i].reset(impl::make_node(std::forward<U>(val)));
return { values.begin() + static_cast<ptrdiff_t>(start_idx) };
}
}
}
template <typename Iter>
iterator insert(const_iterator pos, Iter first, Iter last) noexcept
{
const auto count = std::distance(first, last);
switch (count)
{
case 0: return { values.begin() + (pos.raw_ - values.cbegin()) };
case 1: return insert(pos, *first);
default:
{
const auto start_idx = static_cast<size_t>(pos.raw_ - values.cbegin());
preinsertion_resize(start_idx, count);
size_t i = start_idx;
for (auto it = first; it != last; it++)
values[i].reset(impl::make_node(*it));
return { values.begin() + static_cast<ptrdiff_t>(start_idx) };
}
}
}
template <typename U>
iterator insert(const_iterator pos, std::initializer_list<U> ilist) noexcept
{
switch (ilist.size())
{
case 0: return { values.begin() + (pos.raw_ - values.cbegin()) };
case 1: return insert(pos, *ilist.begin());
default:
{
const auto start_idx = static_cast<size_t>(pos.raw_ - values.cbegin());
preinsertion_resize(start_idx, ilist.size());
size_t i = start_idx;
for (auto& val : ilist)
values[i].reset(impl::make_node(val));
return { values.begin() + static_cast<ptrdiff_t>(start_idx) };
}
}
}
template <typename U, typename... V>
iterator emplace(const_iterator pos, V&&... args) noexcept
{
using type = impl::unwrapped<U>;
static_assert(
impl::is_value_or_node<type>,
"Emplacement type parameter must be one of the basic value types, a toml::table, or a toml::array"
);
return { values.emplace(pos.raw_, new impl::node_of<type>{ std::forward<V>(args)...} ) };
}
iterator erase(const_iterator pos) noexcept;
iterator erase(const_iterator first, const_iterator last) noexcept;
template <typename U>
void resize(size_t new_size, U&& default_init_val) noexcept
{
if (!new_size)
values.clear();
else if (new_size < values.size())
values.resize(new_size);
else if (new_size > values.size())
insert(cend(), new_size - values.size(), std::forward<U>(default_init_val));
}
void truncate(size_t new_size);
template <typename U>
decltype(auto) push_back(U&& val) noexcept
{
auto nde = impl::make_node(std::forward<U>(val));
values.emplace_back(nde);
return *nde;
}
template <typename U, typename... V>
decltype(auto) emplace_back(V&&... args) noexcept
{
using type = impl::unwrapped<U>;
static_assert(
impl::is_value_or_node<type>,
"Emplacement type parameter must be one of the basic value types, a toml::table, or a toml::array"
);
auto nde = new impl::node_of<type>{ std::forward<V>(args)... };
values.emplace_back(nde);
return *nde;
}
void pop_back() noexcept;
[[nodiscard]] node* get(size_t index) noexcept;
[[nodiscard]] const node* get(size_t index) const noexcept;
template <typename T>
[[nodiscard]] impl::node_of<T>* get_as(size_t index) noexcept
{
if (auto val = get(index))
return val->as<T>();
return nullptr;
}
template <typename T>
[[nodiscard]] const impl::node_of<T>* get_as(size_t index) const noexcept
{
if (auto val = get(index))
return val->as<T>();
return nullptr;
}
friend bool operator == (const array& lhs, const array& rhs) noexcept;
friend bool operator != (const array& lhs, const array& rhs) noexcept;
private:
template <typename T>
[[nodiscard]] static bool container_equality(const array& lhs, const T& rhs) noexcept
{
using elem_t = std::remove_const_t<typename T::value_type>;
static_assert(
impl::is_value_or_promotable<elem_t>,
"Container element type must be (or be promotable to) one of the TOML value types"
);
if (lhs.size() != rhs.size())
return false;
if (rhs.size() == 0_sz)
return true;
size_t i{};
for (auto& list_elem : rhs)
{
const auto elem = lhs.get_as<impl::promoted<elem_t>>(i++);
if (!elem || *elem != list_elem)
return false;
}
return true;
}
[[nodiscard]] size_t total_leaf_count() const noexcept;
void flatten_child(array&& child, size_t& dest_index) noexcept;
public:
template <typename T>
[[nodiscard]] friend bool operator == (const array& lhs, const std::initializer_list<T>& rhs) noexcept
{
return container_equality(lhs, rhs);
}
TOML_ASYMMETRICAL_EQUALITY_OPS(const array&, const std::initializer_list<T>&, template <typename T>)
template <typename T>
[[nodiscard]] friend bool operator == (const array& lhs, const std::vector<T>& rhs) noexcept
{
return container_equality(lhs, rhs);
}
TOML_ASYMMETRICAL_EQUALITY_OPS(const array&, const std::vector<T>&, template <typename T>)
void flatten();
template <typename Char>
friend std::basic_ostream<Char>& operator << (std::basic_ostream<Char>&, const array&);
};
}
TOML_POP_WARNINGS //TOML_DISABLE_VTABLE_WARNINGS
#pragma endregion
//------------------------------------------------------------------- ↑ toml_array.h ---------------------------------
//-------------------------------------------------------------------------------------------- ↓ toml_table.h --------
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_VTABLE_WARNINGS
TOML_DISABLE_PADDING_WARNINGS
namespace toml::impl
{
template <bool IsConst>
struct table_proxy_pair final
{
using value_type = std::conditional_t<IsConst, const node, node>;
const string& first;
value_type& second;
};
template <bool IsConst>
class table_iterator final
{
private:
friend class ::toml::table;
using proxy_type = table_proxy_pair<IsConst>;
using raw_mutable_iterator = string_map<std::unique_ptr<node>>::iterator;
using raw_const_iterator = string_map<std::unique_ptr<node>>::const_iterator;
using raw_iterator = std::conditional_t<IsConst, raw_const_iterator, raw_mutable_iterator>;
mutable raw_iterator raw_;
mutable std::aligned_storage_t<sizeof(proxy_type), alignof(proxy_type)> proxy;
mutable bool proxy_instantiated = false;
[[nodiscard]]
proxy_type* get_proxy() const noexcept
{
if (!proxy_instantiated)
{
auto p = new (&proxy) proxy_type{ raw_->first, *raw_->second.get() };
proxy_instantiated = true;
return p;
}
else
return TOML_LAUNDER(reinterpret_cast<proxy_type*>(&proxy));
}
table_iterator(raw_mutable_iterator raw) noexcept
: raw_{ raw }
{}
template <bool C = IsConst, typename = std::enable_if_t<C>>
TOML_NODISCARD_CTOR
table_iterator(raw_const_iterator raw) noexcept
: raw_{ raw }
{}
public:
table_iterator() noexcept = default;
table_iterator(const table_iterator& other) noexcept
: raw_{ other.raw_ }
{}
table_iterator& operator = (const table_iterator& rhs) noexcept
{
raw_ = rhs.raw_;
proxy_instantiated = false;
return *this;
}
using value_type = table_proxy_pair<IsConst>;
using reference = value_type&;
using pointer = value_type*;
table_iterator& operator++() noexcept // ++pre
{
++raw_;
proxy_instantiated = false;
return *this;
}
table_iterator operator++(int) noexcept // post++
{
table_iterator out{ raw_ };
++raw_;
proxy_instantiated = false;
return out;
}
table_iterator& operator--() noexcept // --pre
{
--raw_;
proxy_instantiated = false;
return *this;
}
table_iterator operator--(int) noexcept // post--
{
table_iterator out{ raw_ };
--raw_;
proxy_instantiated = false;
return out;
}
[[nodiscard]]
reference operator* () const noexcept
{
return *get_proxy();
}
[[nodiscard]]
pointer operator -> () const noexcept
{
return get_proxy();
}
[[nodiscard]]
friend constexpr bool operator == (const table_iterator& lhs, const table_iterator& rhs) noexcept
{
return lhs.raw_ == rhs.raw_;
}
[[nodiscard]]
friend constexpr bool operator != (const table_iterator& lhs, const table_iterator& rhs) noexcept
{
return lhs.raw_ != rhs.raw_;
}
template <bool C = IsConst, typename = std::enable_if_t<!C>>
[[nodiscard]]
operator table_iterator<true>() const noexcept
{
return table_iterator<true>{ raw_ };
}
};
struct table_init_pair final
{
string key;
std::unique_ptr<node> value;
template <typename T>
table_init_pair(string&& k, T && v) noexcept
: key{ std::move(k) },
value{ make_node(std::forward<T>(v)) }
{}
template <typename T>
table_init_pair(string_view k, T&& v) noexcept
: key{ k },
value{ make_node(std::forward<T>(v)) }
{}
template <typename T>
table_init_pair(const string_char* k, T&& v) noexcept
: key{ k },
value{ make_node(std::forward<T>(v)) }
{}
};
}
namespace toml
{
[[nodiscard]] TOML_API bool operator == (const table& lhs, const table& rhs) noexcept;
[[nodiscard]] TOML_API bool operator != (const table& lhs, const table& rhs) noexcept;
template <typename Char>
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>&, const table&);
using table_iterator = impl::table_iterator<false>;
using const_table_iterator = impl::table_iterator<true>;
class TOML_API table final
: public node
{
private:
friend class TOML_PARSER_TYPENAME;
impl::string_map<std::unique_ptr<node>> values;
bool inline_ = false;
table(impl::table_init_pair*, size_t) noexcept;
public:
using iterator = table_iterator;
using const_iterator = const_table_iterator;
TOML_NODISCARD_CTOR
table() noexcept;
template <size_t N>
TOML_NODISCARD_CTOR
explicit table(impl::table_init_pair(&& arr)[N]) noexcept
: table{ arr, N }
{}
TOML_NODISCARD_CTOR
table(table&& other) noexcept;
table& operator= (table&& rhs) noexcept;
table(const table&) = delete;
table& operator= (const table&) = delete;
[[nodiscard]] node_type type() const noexcept override;
[[nodiscard]] bool is_table() const noexcept override;
[[nodiscard]] bool is_array() const noexcept override;
[[nodiscard]] bool is_value() const noexcept override;
[[nodiscard]] table* as_table() noexcept override;
[[nodiscard]] const table* as_table() const noexcept override;
[[nodiscard]] bool is_inline() const noexcept;
void is_inline(bool val) noexcept;
[[nodiscard]] node_view<node> operator[] (string_view key) noexcept;
[[nodiscard]] node_view<const node> operator[] (string_view key) const noexcept;
[[nodiscard]] iterator begin() noexcept;
[[nodiscard]] const_iterator begin() const noexcept;
[[nodiscard]] const_iterator cbegin() const noexcept;
[[nodiscard]] iterator end() noexcept;
[[nodiscard]] const_iterator end() const noexcept;
[[nodiscard]] const_iterator cend() const noexcept;
[[nodiscard]] bool empty() const noexcept;
[[nodiscard]] size_t size() const noexcept;
void clear() noexcept;
template <typename K, typename V, typename = std::enable_if_t<
std::is_convertible_v<K&&, string_view>
>>
std::pair<iterator, bool> insert(K&& key, V&& val) noexcept
{
auto ipos = values.lower_bound(key);
if (ipos == values.end() || ipos->first != key)
{
ipos = values.emplace_hint(ipos, std::forward<K>(key), impl::make_node(std::forward<V>(val)));
return { ipos, true };
}
return { ipos, false };
}
template <typename Iter, typename = std::enable_if_t<
!std::is_convertible_v<Iter&&, string_view>
>>
void insert(Iter first, Iter last) noexcept
{
if (first == last)
return;
for (auto it = first; it != last; it++)
{
if constexpr (std::is_rvalue_reference_v<decltype(*it)>)
insert(std::move((*it).first), std::move((*it).second));
else
insert((*it).first, (*it).second);
}
}
template <typename K, typename V>
std::pair<iterator, bool> insert_or_assign(K&& key, V&& val) noexcept
{
auto ipos = values.lower_bound(key);
if (ipos == values.end() || ipos->first != key)
{
ipos = values.emplace_hint(ipos, std::forward<K>(key), impl::make_node(std::forward<V>(val)));
return { ipos, true };
}
else
{
(*ipos).second.reset(impl::make_node(std::forward<V>(val)));
return { ipos, false };
}
}
template <typename U, typename K, typename... V>
std::pair<iterator, bool> emplace(K&& key, V&&... args) noexcept
{
using type = impl::unwrapped<U>;
static_assert(
impl::is_value_or_node<type>,
"Emplacement type parameter must be one of the basic value types, a toml::table, or a toml::array"
);
auto ipos = values.lower_bound(key);
if (ipos == values.end() || ipos->first != key)
{
ipos = values.emplace_hint(
ipos,
std::forward<K>(key),
new impl::node_of<type>{ std::forward<V>(args)... }
);
return { ipos, true };
}
return { ipos, false };
}
iterator erase(iterator pos) noexcept;
iterator erase(const_iterator pos) noexcept;
iterator erase(const_iterator first, const_iterator last) noexcept;
bool erase(string_view key) noexcept;
private:
template <typename Map, typename Key>
[[nodiscard]] static auto do_get(Map& vals, const Key& key) noexcept
{
using return_type = std::conditional_t<
std::is_const_v<Map>,
const node*,
node*
>;
if (auto it = vals.find(key); it != vals.end())
return return_type{ it->second.get() };
return return_type{};
}
template <typename T, typename Map, typename Key>
[[nodiscard]] static auto do_get_as(Map& vals, const Key& key) noexcept
{
const auto node = do_get(vals, key);
return node ? node->template as<T>() : nullptr;
}
template <typename Map, typename Key>
[[nodiscard]] TOML_ALWAYS_INLINE
static bool do_contains(Map& vals, const Key& key) noexcept
{
#if TOML_CPP >= 20
return vals.contains(key);
#else
return do_get(vals, key) != nullptr;
#endif
}
public:
[[nodiscard]] node* get(string_view key) noexcept;
[[nodiscard]] const node* get(string_view key) const noexcept;
[[nodiscard]] iterator find(string_view key) noexcept;
[[nodiscard]] const_iterator find(string_view key) const noexcept;
template <typename T>
[[nodiscard]] impl::node_of<T>* get_as(string_view key) noexcept
{
return do_get_as<T>(values, key);
}
template <typename T>
[[nodiscard]] const impl::node_of<T>* get_as(string_view key) const noexcept
{
return do_get_as<T>(values, key);
}
[[nodiscard]] bool contains(string_view key) const noexcept;
friend bool operator == (const table& lhs, const table& rhs) noexcept;
friend bool operator != (const table& lhs, const table& rhs) noexcept;
template <typename Char>
friend std::basic_ostream<Char>& operator << (std::basic_ostream<Char>&, const table&);
};
}
TOML_POP_WARNINGS // TOML_DISABLE_VTABLE_WARNINGS, TOML_DISABLE_PADDING_WARNINGS
#pragma endregion
//-------------------------------------------------------------------------------------------- ↑ toml_table.h --------
//--------------- ↓ toml_node_view.h ---------------------------------------------------------------------------------
#pragma region
namespace toml
{
TOML_PUSH_WARNINGS
TOML_DISABLE_FLOAT_WARNINGS
template <typename Char, typename T>
inline std::basic_ostream<Char>& operator << (std::basic_ostream<Char>&, const node_view<T>&);
template <typename T>
class TOML_API TOML_TRIVIAL_ABI node_view
{
public:
using viewed_type = T;
private:
friend class toml::table;
template <typename U> friend class toml::node_view;
mutable viewed_type* node_ = nullptr;
TOML_NODISCARD_CTOR
node_view(viewed_type* node) noexcept
: node_{ node }
{}
template <typename Func>
static constexpr bool visit_is_nothrow
= noexcept(std::declval<viewed_type*>()->visit(std::declval<Func&&>()));
public:
TOML_NODISCARD_CTOR
node_view() noexcept = default;
[[nodiscard]] explicit operator bool() const noexcept { return node_ != nullptr; }
[[nodiscard]] viewed_type* get() const noexcept { return node_; }
[[nodiscard]] node_type type() const noexcept { return node_ ? node_->type() : node_type::none; }
[[nodiscard]] bool is_table() const noexcept { return node_ && node_->is_table(); }
[[nodiscard]] bool is_array() const noexcept { return node_ && node_->is_array(); }
[[nodiscard]] bool is_value() const noexcept { return node_ && node_->is_value(); }
[[nodiscard]] bool is_string() const noexcept { return node_ && node_->is_string(); }
[[nodiscard]] bool is_integer() const noexcept { return node_ && node_->is_integer(); }
[[nodiscard]] bool is_floating_point() const noexcept { return node_ && node_->is_floating_point(); }
[[nodiscard]] bool is_number() const noexcept { return node_ && node_->is_number(); }
[[nodiscard]] bool is_boolean() const noexcept { return node_ && node_->is_boolean(); }
[[nodiscard]] bool is_date() const noexcept { return node_ && node_->is_date(); }
[[nodiscard]] bool is_time() const noexcept { return node_ && node_->is_time(); }
[[nodiscard]] bool is_date_time() const noexcept { return node_ && node_->is_date_time(); }
[[nodiscard]] bool is_array_of_tables() const noexcept { return node_ && node_->is_array_of_tables(); }
template <typename U>
[[nodiscard]]
bool is() const noexcept
{
return node_ ? node_->template is<U>() : false;
}
template <typename U>
[[nodiscard]]
auto as() const noexcept
{
static_assert(
impl::is_value_or_node<impl::unwrapped<U>>,
"Template type parameter must be one of the basic value types, a toml::table, or a toml::array"
);
return node_ ? node_->template as<U>() : nullptr;
}
[[nodiscard]] auto as_table() const noexcept { return as<table>(); }
[[nodiscard]] auto as_array() const noexcept { return as<array>(); }
[[nodiscard]] auto as_string() const noexcept { return as<string>(); }
[[nodiscard]] auto as_integer() const noexcept { return as<int64_t>(); }
[[nodiscard]] auto as_floating_point() const noexcept { return as<double>(); }
[[nodiscard]] auto as_boolean() const noexcept { return as<bool>(); }
[[nodiscard]] auto as_date() const noexcept { return as<date>(); }
[[nodiscard]] auto as_time() const noexcept { return as<time>(); }
[[nodiscard]] auto as_date_time() const noexcept { return as<date_time>(); }
TOML_PUSH_WARNINGS
TOML_DISABLE_INIT_WARNINGS
template <typename U>
[[nodiscard]] optional<U> value() const noexcept
{
if (node_)
return node_->template value<U>();
return {};
}
TOML_POP_WARNINGS
template <typename U>
[[nodiscard]] auto value_or(U&& default_value) const noexcept
{
using return_type = decltype(node_->value_or(std::forward<U>(default_value)));
if (node_)
return node_->value_or(std::forward<U>(default_value));
return return_type{ std::forward<U>(default_value) };
}
template <typename Func>
decltype(auto) visit(Func&& visitor) const
noexcept(visit_is_nothrow<Func&&>)
{
using return_type = decltype(node_->visit(std::forward<Func>(visitor)));
if (node_)
return node_->visit(std::forward<Func>(visitor));
if constexpr (!std::is_void_v<return_type>)
return return_type{};
}
template <typename U>
[[nodiscard]] decltype(auto) ref() const noexcept
{
using type = impl::unwrapped<U>;
static_assert(
impl::is_value_or_node<type>,
"Template type parameter must be one of the TOML value types, a toml::table, or a toml::array"
);
TOML_ASSERT(
node_
&& "toml::node_view::ref() called on a node_view that did not reference a node"
);
return node_->template ref<type>();
}
[[nodiscard]] friend bool operator == (const node_view& lhs, const table& rhs) noexcept
{
if (lhs.node_ == &rhs)
return true;
const auto tbl = lhs.as<table>();
return tbl && *tbl == rhs;
}
TOML_ASYMMETRICAL_EQUALITY_OPS(const node_view&, const table&, )
[[nodiscard]] friend bool operator == (const node_view& lhs, const array& rhs) noexcept
{
if (lhs.node_ == &rhs)
return true;
const auto arr = lhs.as<array>();
return arr && *arr == rhs;
}
TOML_ASYMMETRICAL_EQUALITY_OPS(const node_view&, const array&, )
template <typename U>
[[nodiscard]] friend bool operator == (const node_view& lhs, const toml::value<U>& rhs) noexcept
{
if (lhs.node_ == &rhs)
return true;
const auto val = lhs.as<U>();
return val && *val == rhs;
}
TOML_ASYMMETRICAL_EQUALITY_OPS(const node_view&, const toml::value<U>&, template <typename U>)
template <typename U, typename = std::enable_if_t<impl::is_value_or_promotable<U>>>
[[nodiscard]] friend bool operator == (const node_view& lhs, const U& rhs) noexcept
{
const auto val = lhs.as<impl::promoted<U>>();
return val && *val == rhs;
}
TOML_ASYMMETRICAL_EQUALITY_OPS(
const node_view&,
const U&,
template <typename U, typename = std::enable_if_t<impl::is_value_or_promotable<U>>>
)
template <typename U>
[[nodiscard]] friend bool operator == (const node_view& lhs, const std::initializer_list<U>& rhs) noexcept
{
const auto arr = lhs.as<array>();
return arr && *arr == rhs;
}
TOML_ASYMMETRICAL_EQUALITY_OPS(const node_view&, const std::initializer_list<U>&, template <typename U>)
template <typename U>
[[nodiscard]] friend bool operator == (const node_view& lhs, const std::vector<U>& rhs) noexcept
{
const auto arr = lhs.as<array>();
return arr && *arr == rhs;
}
TOML_ASYMMETRICAL_EQUALITY_OPS(const node_view&, const std::vector<U>&, template <typename U>)
[[nodiscard]] node_view operator[] (string_view key) const noexcept
{
if (auto tbl = this->as_table())
return { tbl->get(key) };
return { nullptr };
}
[[nodiscard]] node_view operator[] (size_t index) const noexcept
{
if (auto arr = this->as_array())
return { arr->get(index) };
return { nullptr };
}
template <typename Char, typename U>
friend std::basic_ostream<Char>& operator << (std::basic_ostream<Char>&, const node_view<U>&);
};
template <typename Char, typename T>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>& os, const node_view<T>& nv)
{
if (nv.node_)
{
nv.node_->visit([&os](const auto& n)
{
os << n;
});
}
return os;
}
#if !TOML_ALL_INLINE
extern template class TOML_API node_view<node>;
extern template class TOML_API node_view<const node>;
extern template TOML_API std::ostream& operator << (std::ostream&, const node_view<node>&);
extern template TOML_API std::ostream& operator << (std::ostream&, const node_view<const node>&);
#endif
TOML_POP_WARNINGS // TOML_DISABLE_FLOAT_WARNINGS
}
#pragma endregion
//--------------- ↑ toml_node_view.h ---------------------------------------------------------------------------------
//-------------------------------------- ↓ toml_utf8_generated.h -----------------------------------------------------
#pragma region
namespace toml::impl
{
[[nodiscard]]
TOML_GNU_ATTR(const)
constexpr bool is_hexadecimal_digit(char32_t cp) noexcept
{
using ui64 = std::uint_least64_t;
return cp >= U'0' && cp <= U'f' && (1ull << (static_cast<ui64>(cp) - 0x30ull)) & 0x7E0000007E03FFull;
}
#if TOML_LANG_UNRELEASED // toml/issues/687 (unicode bare keys)
[[nodiscard]]
TOML_GNU_ATTR(const)
constexpr bool is_unicode_letter(char32_t cp) noexcept
{
using ui64 = std::uint_least64_t;
using ui32 = std::uint_least32_t;
if (cp < U'\u00AA' || cp > U'\U00031349')
return false;
const auto child_index_0 = (static_cast<ui64>(cp) - 0xAAull) / 0xC4Bull;
if ((1ull << child_index_0) & 0x8A7FFC004001CFA0ull)
return true;
if ((1ull << child_index_0) & 0x26180C0000ull)
return false;
switch (child_index_0)
{
case 0x00: // [0] 00AA - 0CF4
{
if (cp > U'\u0CF2')
return false;
TOML_ASSUME(cp >= U'\u00AA');
constexpr ui64 bitmask_table_1[] =
{
0xFFFFDFFFFFC10801ull, 0xFFFFFFFFFFFFDFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0x07C000FFF0FFFFFFull, 0x0000000000000014ull, 0x0000000000000000ull, 0xFEFFFFF5D02F37C0ull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFEFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFF00FFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFC09FFFFFFFFFBFull, 0x000000007FFFFFFFull,
0xFFFFFFC000000000ull, 0xFFC00000000001E1ull, 0x00000001FFFFFFFFull, 0xFFFFFFFFFFFFFFB0ull,
0x18000BFFFFFFFFFFull, 0xFFFFFF4000270030ull, 0xFFFFFFF80000003Full, 0x0FFFFFFFFFFFFFFFull,
0xFFFFFFFF00000080ull, 0x44010FFFFFC10C01ull, 0xFFC07FFFFFC00000ull, 0xFFC0000000000001ull,
0x000000003FFFF7FFull, 0xFFFFFFFFFC000000ull, 0x00FFC0400008FFFFull, 0x7FFFFE67F87FFF80ull,
0x00EC00100008F17Full, 0x7FFFFE61F80400C0ull, 0x001780000000DB7Full, 0x7FFFFEEFF8000700ull,
0x00C000400008FB7Full, 0x7FFFFE67F8008000ull, 0x00EC00000008FB7Full, 0xC6358F71FA000080ull,
0x000000400000FFF1ull, 0x7FFFFF77F8000000ull, 0x00C1C0000008FFFFull, 0x7FFFFF77F8400000ull,
0x00D000000008FBFFull, 0x0000000000000180ull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0xAAull) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0xAAull) % 0x40ull));
}
case 0x01: // [1] 0CF5 - 193F
{
if (cp < U'\u0D04' || cp > U'\u191E')
return false;
constexpr ui64 bitmask_table_1[] =
{
0x027FFFFFFFFFDDFFull, 0x0FC0000038070400ull, 0xF2FFBFFFFFC7FFFEull, 0xE000000000000007ull,
0xF000DFFFFFFFFFFFull, 0x6000000000000007ull, 0xF200DFFAFFFFFF7Dull, 0x100000000F000005ull,
0xF000000000000000ull, 0x000001FFFFFFFFEFull, 0x00000000000001F0ull, 0xF000000000000000ull,
0x0800007FFFFFFFFFull, 0x3FFE1C0623C3F000ull, 0xFFFFFFFFF0000400ull, 0xFF7FFFFFFFFFF20Bull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFF3D7F3DFull, 0xD7F3DFFFFFFFF3DFull, 0xFFFFFFFFFFF7FFF3ull,
0xFFFFFFFFFFF3DFFFull, 0xF0000000007FFFFFull, 0xFFFFFFFFF0000FFFull, 0xE3F3FFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xEFFFF9FFFFFFFFFFull, 0xFFFFFFFFF07FFFFFull, 0xF01FE07FFFFFFFFFull,
0xF0003FFFF0003DFFull, 0xF0001DFFF0003FFFull, 0x0000FFFFFFFFFFFFull, 0x0000000001080000ull,
0xFFFFFFFFF0000000ull, 0xF01FFFFFFFFFFFFFull, 0xFFFFF05FFFFFFFF9ull, 0xF003FFFFFFFFFFFFull,
0x0000000007FFFFFFull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0xD04ull) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0xD04ull) % 0x40ull));
}
case 0x02: // [2] 1940 - 258A
{
if (cp < U'\u1950' || cp > U'\u2184')
return false;
constexpr ui64 bitmask_table_1[] =
{
0xFFFF001F3FFFFFFFull, 0x03FFFFFF0FFFFFFFull, 0xFFFF000000000000ull, 0xFFFFFFFFFFFF007Full,
0x000000000000001Full, 0x0000000000800000ull, 0xFFE0000000000000ull, 0x0FE0000FFFFFFFFFull,
0xFFF8000000000000ull, 0xFFFFFC00C001FFFFull, 0xFFFF0000003FFFFFull, 0xE0000000000FFFFFull,
0x01FF3FFFFFFFFC00ull, 0x0000E7FFFFFFFFFFull, 0xFFFF046FDE000000ull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0x0000FFFFFFFFFFFFull, 0xFFFF000000000000ull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0x3F3FFFFFFFFF3F3Full,
0xFFFF3FFFFFFFAAFFull, 0x1FDC5FDFFFFFFFFFull, 0x00001FDC1FFF0FCFull, 0x0000000000000000ull,
0x0000800200000000ull, 0x0000000000001FFFull, 0xFC84000000000000ull, 0x43E0F3FFBD503E2Full,
0x0018000000000000ull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x1950ull) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0x1950ull) % 0x40ull));
}
case 0x03: // [3] 258B - 31D5
{
if (cp < U'\u2C00' || cp > U'\u31BF')
return false;
constexpr ui64 bitmask_table_1[] =
{
0xFFFF7FFFFFFFFFFFull, 0xFFFFFFFF7FFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0x000C781FFFFFFFFFull,
0xFFFF20BFFFFFFFFFull, 0x000080FFFFFFFFFFull, 0x7F7F7F7F007FFFFFull, 0x000000007F7F7F7Full,
0x0000800000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x183E000000000060ull, 0xFFFFFFFFFFFFFFFEull, 0xFFFFFFFEE07FFFFFull, 0xF7FFFFFFFFFFFFFFull,
0xFFFEFFFFFFFFFFE0ull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFF00007FFFull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x2C00ull) / 0x40ull]
& (0x1ull << (static_cast<ui64>(cp) % 0x40ull));
}
case 0x04: return (cp >= U'\u31F0' && cp <= U'\u31FF') || (cp >= U'\u3400' && cp <= U'\u3E20');
case 0x06: return (cp >= U'\u4A6C' && cp <= U'\u4DBE') || (cp >= U'\u4E00' && cp <= U'\u56B6');
case 0x0C: return (cp >= U'\u942E' && cp <= U'\u9FFB') || (cp >= U'\uA000' && cp <= U'\uA078');
case 0x0D: // [13] A079 - ACC3
{
TOML_ASSUME(cp >= U'\uA079' && cp <= U'\uACC3');
constexpr ui64 bitmask_table_1[] =
{
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0x00000000000FFFFFull, 0xFFFFFFFFFF800000ull, 0xFFFFFFFFFFFFFF9Full, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0x0006007FFF8FFFFFull, 0x003FFFFFFFFFFF80ull,
0xFFFFFF9FFFFFFFC0ull, 0x00001FFFFFFFFFFFull, 0xFFFFFE7FC0000000ull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFCFFFFull, 0xF00000000003FE7Full, 0x000003FFFFFBDDFFull, 0x07FFFFFFFFFFFF80ull,
0x07FFFFFFFFFFFE00ull, 0x7E00000000000000ull, 0xFF801FFFFFFE0034ull, 0xFFFFFF8000003FFFull,
0x03FFFFFFFFFFF80Full, 0x007FEF8000400000ull, 0x0000FFFFFFFFFFBEull, 0x3FFFFF800007FB80ull,
0x317FFFFFFFFFFFE2ull, 0x0E03FF9C0000029Full, 0xFFBFBF803F3F3F00ull, 0xFF81FFFBFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0x000003FFFFFFFFFFull, 0xFFFFFFFFFFFFFF80ull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0x00000000000007FFull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0xA079ull) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0xA079ull) % 0x40ull));
}
case 0x11: return (cp >= U'\uD1A5' && cp <= U'\uD7A2') || (cp >= U'\uD7B0' && cp <= U'\uD7C6')
|| (cp >= U'\uD7CB' && cp <= U'\uD7FB');
case 0x14: // [20] F686 - 102D0
{
if (cp < U'\uF900')
return false;
TOML_ASSUME(cp <= U'\U000102D0');
constexpr ui64 bitmask_table_1[] =
{
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFF3FFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0x0000000003FFFFFFull,
0x5F7FFDFFA0F8007Full, 0xFFFFFFFFFFFFFFDBull, 0x0003FFFFFFFFFFFFull, 0xFFFFFFFFFFF80000ull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0x3FFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFF0000ull, 0xFFFFFFFFFFFCFFFFull, 0x0FFF0000000000FFull,
0x0000000000000000ull, 0xFFDF000000000000ull, 0xFFFFFFFFFFFFFFFFull, 0x1FFFFFFFFFFFFFFFull,
0x07FFFFFE00000000ull, 0xFFFFFFC007FFFFFEull, 0x7FFFFFFFFFFFFFFFull, 0x000000001CFCFCFCull,
0xB7FFFF7FFFFFEFFFull, 0x000000003FFF3FFFull, 0xFFFFFFFFFFFFFFFFull, 0x07FFFFFFFFFFFFFFull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0xFFFFFFFF1FFFFFFFull, 0x000000000001FFFFull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0xF900ull) / 0x40ull]
& (0x1ull << (static_cast<ui64>(cp) % 0x40ull));
}
case 0x15: // [21] 102D1 - 10F1B
{
if (cp < U'\U00010300')
return false;
TOML_ASSUME(cp <= U'\U00010F1B');
constexpr ui64 bitmask_table_1[] =
{
0xFFFFE000FFFFFFFFull, 0x003FFFFFFFFF03FDull, 0xFFFFFFFF3FFFFFFFull, 0x000000000000FF0Full,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFF00003FFFFFFFull, 0x0FFFFFFFFF0FFFFFull,
0xFFFF00FFFFFFFFFFull, 0x0000000FFFFFFFFFull, 0x0000000000000000ull, 0x0000000000000000ull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0x007FFFFFFFFFFFFFull, 0x000000FF003FFFFFull, 0x0000000000000000ull, 0x0000000000000000ull,
0x91BFFFFFFFFFFD3Full, 0x007FFFFF003FFFFFull, 0x000000007FFFFFFFull, 0x0037FFFF00000000ull,
0x03FFFFFF003FFFFFull, 0x0000000000000000ull, 0xC0FFFFFFFFFFFFFFull, 0x0000000000000000ull,
0x003FFFFFFEEF0001ull, 0x1FFFFFFF00000000ull, 0x000000001FFFFFFFull, 0x0000001FFFFFFEFFull,
0x003FFFFFFFFFFFFFull, 0x0007FFFF003FFFFFull, 0x000000000003FFFFull, 0x0000000000000000ull,
0xFFFFFFFFFFFFFFFFull, 0x00000000000001FFull, 0x0007FFFFFFFFFFFFull, 0x0007FFFFFFFFFFFFull,
0x0000000FFFFFFFFFull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x000303FFFFFFFFFFull, 0x0000000000000000ull,
0x000000000FFFFFFFull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x10300ull) / 0x40ull]
& (0x1ull << (static_cast<ui64>(cp) % 0x40ull));
}
case 0x16: // [22] 10F1C - 11B66
{
if (cp > U'\U00011AF8')
return false;
TOML_ASSUME(cp >= U'\U00010F1C');
constexpr ui64 bitmask_table_1[] =
{
0x000003FFFFF00801ull, 0x0000000000000000ull, 0x000001FFFFF00000ull, 0xFFFFFF8007FFFFF0ull,
0x000000000FFFFFFFull, 0xFFFFFF8000000000ull, 0xFFF00000000FFFFFull, 0xFFFFFF8000001FFFull,
0xFFF00900000007FFull, 0xFFFFFF80047FFFFFull, 0x400001E0007FFFFFull, 0xFFBFFFF000000001ull,
0x000000000000FFFFull, 0xFFFBD7F000000000ull, 0xFFFFFFFFFFF01FFBull, 0xFF99FE0000000007ull,
0x001000023EDFDFFFull, 0x000000000000003Eull, 0x0000000000000000ull, 0xFFFFFFF000000000ull,
0x0000780001FFFFFFull, 0xFFFFFFF000000038ull, 0x00000B00000FFFFFull, 0x0000000000000000ull,
0x0000000000000000ull, 0xFFFFFFF000000000ull, 0xF00000000007FFFFull, 0xFFFFFFF000000000ull,
0x00000100000FFFFFull, 0xFFFFFFF000000000ull, 0x0000000010007FFFull, 0x7FFFFFF000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0xFFFFFFF000000000ull,
0x000000000000FFFFull, 0x0000000000000000ull, 0xFFFFFFFFFFFFFFF0ull, 0xF6FF27F80000000Full,
0x00000028000FFFFFull, 0x0000000000000000ull, 0x001FFFFFFFFFCFF0ull, 0xFFFF8010000000A0ull,
0x00100000407FFFFFull, 0x00003FFFFFFFFFFFull, 0xFFFFFFF000000002ull, 0x000000001FFFFFFFull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x10F1Cull) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0x10F1Cull) % 0x40ull));
}
case 0x17: // [23] 11B67 - 127B1
{
if (cp < U'\U00011C00' || cp > U'\U00012543')
return false;
constexpr ui64 bitmask_table_1[] =
{
0x00007FFFFFFFFDFFull, 0xFFFC000000000001ull, 0x000000000000FFFFull, 0x0000000000000000ull,
0x0001FFFFFFFFFB7Full, 0xFFFFFDBF00000040ull, 0x00000000010003FFull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0007FFFF00000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0001000000000000ull, 0x0000000000000000ull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0x0000000003FFFFFFull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0x000000000000000Full,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x11C00ull) / 0x40ull]
& (0x1ull << (static_cast<ui64>(cp) % 0x40ull));
}
case 0x18: return cp >= U'\U00013000';
case 0x19: return cp <= U'\U0001342E';
case 0x1A: return cp >= U'\U00014400' && cp <= U'\U00014646';
case 0x1D: // [29] 16529 - 17173
{
if (cp < U'\U00016800')
return false;
TOML_ASSUME(cp <= U'\U00017173');
constexpr ui64 bitmask_table_1[] =
{
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0x01FFFFFFFFFFFFFFull, 0x000000007FFFFFFFull, 0x0000000000000000ull, 0x00003FFFFFFF0000ull,
0x0000FFFFFFFFFFFFull, 0xE0FFFFF80000000Full, 0x000000000000FFFFull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0xFFFFFFFFFFFFFFFFull, 0x0000000000000000ull, 0x0000000000000000ull,
0xFFFFFFFFFFFFFFFFull, 0x00000000000107FFull, 0x00000000FFF80000ull, 0x0000000B00000000ull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0x000FFFFFFFFFFFFFull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x16800ull) / 0x40ull]
& (0x1ull << (static_cast<ui64>(cp) % 0x40ull));
}
case 0x1F: return (cp >= U'\U00017DBF' && cp <= U'\U000187F6') || (cp >= U'\U00018800' && cp <= U'\U00018A09');
case 0x20: return (cp >= U'\U00018A0A' && cp <= U'\U00018CD5') || (cp >= U'\U00018D00' && cp <= U'\U00018D07');
case 0x23: // [35] 1AEEB - 1BB35
{
if (cp < U'\U0001B000' || cp > U'\U0001B2FB')
return false;
constexpr ui64 bitmask_table_1[] =
{
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0x000000007FFFFFFFull, 0xFFFF00F000070000ull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0x0FFFFFFFFFFFFFFFull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x1B000ull) / 0x40ull]
& (0x1ull << (static_cast<ui64>(cp) % 0x40ull));
}
case 0x24: // [36] 1BB36 - 1C780
{
if (cp < U'\U0001BC00' || cp > U'\U0001BC99')
return false;
switch ((static_cast<ui64>(cp) - 0x1BC00ull) / 0x40ull)
{
case 0x01: return cp <= U'\U0001BC7C'
&& (1ull << (static_cast<ui64>(cp) - 0x1BC40ull)) & 0x1FFF07FFFFFFFFFFull;
case 0x02: return (1u << (static_cast<ui32>(cp) - 0x1BC80u)) & 0x3FF01FFu;
default: return true;
}
}
case 0x26: // [38] 1D3CC - 1E016
{
if (cp < U'\U0001D400' || cp > U'\U0001D7CB')
return false;
constexpr ui64 bitmask_table_1[] =
{
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFDFFFFFull, 0xEBFFDE64DFFFFFFFull, 0xFFFFFFFFFFFFFFEFull,
0x7BFFFFFFDFDFE7BFull, 0xFFFFFFFFFFFDFC5Full, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFF3FFFFFFFFFull, 0xF7FFFFFFF7FFFFFDull,
0xFFDFFFFFFFDFFFFFull, 0xFFFF7FFFFFFF7FFFull, 0xFFFFFDFFFFFFFDFFull, 0x0000000000000FF7ull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x1D400ull) / 0x40ull]
& (0x1ull << (static_cast<ui64>(cp) % 0x40ull));
}
case 0x27: // [39] 1E017 - 1EC61
{
if (cp < U'\U0001E100' || cp > U'\U0001E94B')
return false;
constexpr ui64 bitmask_table_1[] =
{
0x3F801FFFFFFFFFFFull, 0x0000000000004000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x00000FFFFFFFFFFFull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFFull, 0x000000000000001Full,
0xFFFFFFFFFFFFFFFFull, 0x000000000000080Full,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x1E100ull) / 0x40ull]
& (0x1ull << (static_cast<ui64>(cp) % 0x40ull));
}
case 0x28: // [40] 1EC62 - 1F8AC
{
if (cp < U'\U0001EE00' || cp > U'\U0001EEBB')
return false;
switch ((static_cast<ui64>(cp) - 0x1EE00ull) / 0x40ull)
{
case 0x00: return cp <= U'\U0001EE3B'
&& (1ull << (static_cast<ui64>(cp) - 0x1EE00ull)) & 0xAF7FE96FFFFFFEFull;
case 0x01: return cp >= U'\U0001EE42' && cp <= U'\U0001EE7E'
&& (1ull << (static_cast<ui64>(cp) - 0x1EE42ull)) & 0x17BDFDE5AAA5BAA1ull;
case 0x02: return (1ull << (static_cast<ui64>(cp) - 0x1EE80ull)) & 0xFFFFBEE0FFFFBFFull;
TOML_NO_DEFAULT_CASE;
}
}
case 0x29: return cp >= U'\U00020000';
case 0x37: return (cp >= U'\U0002A4C7' && cp <= U'\U0002A6DC') || (cp >= U'\U0002A700' && cp <= U'\U0002B111');
case 0x38: return (cp >= U'\U0002B112' && cp <= U'\U0002B733') || (cp >= U'\U0002B740' && cp <= U'\U0002B81C')
|| (cp >= U'\U0002B820' && cp <= U'\U0002BD5C');
case 0x3A: return (cp >= U'\U0002C9A8' && cp <= U'\U0002CEA0') || (cp >= U'\U0002CEB0' && cp <= U'\U0002D5F2');
case 0x3C: return cp <= U'\U0002EBDF';
case 0x3D: return cp >= U'\U0002F800' && cp <= U'\U0002FA1D';
case 0x3E: return cp >= U'\U00030000';
TOML_NO_DEFAULT_CASE;
}
}
[[nodiscard]]
TOML_GNU_ATTR(const)
constexpr bool is_unicode_number(char32_t cp) noexcept
{
using ui64 = std::uint_least64_t;
if (cp < U'\u0660' || cp > U'\U0001FBF9')
return false;
const auto child_index_0 = (static_cast<ui64>(cp) - 0x660ull) / 0x7D7ull;
if ((1ull << child_index_0) & 0x47FFDFE07FCFFFD0ull)
return false;
switch (child_index_0)
{
case 0x00: // [0] 0660 - 0E36
{
if (cp > U'\u0DEF')
return false;
TOML_ASSUME(cp >= U'\u0660');
constexpr ui64 bitmask_table_1[] =
{
0x00000000000003FFull, 0x0000000000000000ull, 0x0000000003FF0000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x000003FF00000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x000000000000FFC0ull, 0x0000000000000000ull, 0x000000000000FFC0ull, 0x0000000000000000ull,
0x000000000000FFC0ull, 0x0000000000000000ull, 0x000000000000FFC0ull, 0x0000000000000000ull,
0x000000000000FFC0ull, 0x0000000000000000ull, 0x000000000000FFC0ull, 0x0000000000000000ull,
0x000000000000FFC0ull, 0x0000000000000000ull, 0x000000000000FFC0ull, 0x0000000000000000ull,
0x000000000000FFC0ull, 0x0000000000000000ull, 0x000000000000FFC0ull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x660ull) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0x660ull) % 0x40ull));
}
case 0x01: // [1] 0E37 - 160D
{
if (cp < U'\u0E50' || cp > U'\u1099')
return false;
constexpr ui64 bitmask_table_1[] =
{
0x00000000000003FFull, 0x0000000000000000ull, 0x00000000000003FFull, 0x0000000003FF0000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x03FF000000000000ull,
0x0000000000000000ull, 0x00000000000003FFull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0xE50ull) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0xE50ull) % 0x40ull));
}
case 0x02: // [2] 160E - 1DE4
{
if (cp < U'\u16EE' || cp > U'\u1C59')
return false;
constexpr ui64 bitmask_table_1[] =
{
0x0000000000000007ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0FFC000000000000ull,
0x00000FFC00000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x00000003FF000000ull, 0x0000000000000000ull, 0x00000FFC00000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x00000FFC0FFC0000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x00000FFC00000000ull, 0x0000000000000000ull, 0x0000000000000FFCull,
0x0000000000000000ull, 0x00000FFC0FFC0000ull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x16EEull) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0x16EEull) % 0x40ull));
}
case 0x03: return cp >= U'\u2160' && cp <= U'\u2188'
&& (1ull << (static_cast<ui64>(cp) - 0x2160ull)) & 0x1E7FFFFFFFFull;
case 0x05: return cp >= U'\u3007' && cp <= U'\u303A'
&& (1ull << (static_cast<ui64>(cp) - 0x3007ull)) & 0xE0007FC000001ull;
case 0x14: // [20] A32C - AB02
{
if (cp < U'\uA620' || cp > U'\uAA59')
return false;
constexpr ui64 bitmask_table_1[] =
{
0x00000000000003FFull, 0x0000000000000000ull, 0x0000000000000000ull, 0x000000000000FFC0ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x03FF000000000000ull, 0x000003FF00000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x03FF000000000000ull, 0x0000000003FF0000ull,
0x03FF000000000000ull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0xA620ull) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0xA620ull) % 0x40ull));
}
case 0x15: return cp >= U'\uABF0' && cp <= U'\uABF9';
case 0x1F: return cp >= U'\uFF10' && cp <= U'\uFF19';
case 0x20: // [32] 10140 - 10916
{
if (cp > U'\U000104A9')
return false;
TOML_ASSUME(cp >= U'\U00010140');
constexpr ui64 bitmask_table_1[] =
{
0x001FFFFFFFFFFFFFull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000402ull, 0x0000000000000000ull, 0x00000000003E0000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x000003FF00000000ull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x10140ull) / 0x40ull]
& (0x1ull << (static_cast<ui64>(cp) % 0x40ull));
}
case 0x21: return (cp >= U'\U00010D30' && cp <= U'\U00010D39') || (cp >= U'\U00011066' && cp <= U'\U0001106F');
case 0x22: // [34] 110EE - 118C4
{
if (cp < U'\U000110F0' || cp > U'\U00011739')
return false;
constexpr ui64 bitmask_table_1[] =
{
0x00000000000003FFull, 0x000000000000FFC0ull, 0x0000000000000000ull, 0x000003FF00000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x00000000000003FFull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x000003FF00000000ull, 0x0000000000000000ull, 0x000003FF00000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x000003FF00000000ull, 0x0000000000000000ull, 0x0000000003FF0000ull,
0x0000000000000000ull, 0x00000000000003FFull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x110F0ull) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0x110F0ull) % 0x40ull));
}
case 0x23: // [35] 118C5 - 1209B
{
if (cp < U'\U000118E0' || cp > U'\U00011DA9')
return false;
constexpr ui64 bitmask_table_1[] =
{
0x00000000000003FFull, 0x03FF000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x03FF000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x03FF000000000000ull, 0x0000000000000000ull, 0x00000000000003FFull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x118E0ull) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0x118E0ull) % 0x40ull));
}
case 0x24: return cp >= U'\U00012400' && cp <= U'\U0001246E';
case 0x2D: return (cp >= U'\U00016A60' && cp <= U'\U00016A69') || (cp >= U'\U00016B50' && cp <= U'\U00016B59');
case 0x3B: return cp >= U'\U0001D7CE' && cp <= U'\U0001D7FF';
case 0x3C: return (cp >= U'\U0001E140' && cp <= U'\U0001E149') || (cp >= U'\U0001E2F0' && cp <= U'\U0001E2F9');
case 0x3D: return cp >= U'\U0001E950' && cp <= U'\U0001E959';
case 0x3F: return cp >= U'\U0001FBF0';
TOML_NO_DEFAULT_CASE;
}
}
[[nodiscard]]
TOML_GNU_ATTR(const)
constexpr bool is_unicode_combining_mark(char32_t cp) noexcept
{
using ui64 = std::uint_least64_t;
if (cp < U'\u0300' || cp > U'\U000E01EF')
return false;
const auto child_index_0 = (static_cast<ui64>(cp) - 0x300ull) / 0x37FCull;
if ((1ull << child_index_0) & 0x7FFFFFFFFFFFFE02ull)
return false;
switch (child_index_0)
{
case 0x00: // [0] 0300 - 3AFB
{
if (cp > U'\u309A')
return false;
TOML_ASSUME(cp >= U'\u0300');
constexpr ui64 bitmask_table_1[] =
{
0xFFFFFFFFFFFFFFFFull, 0x0000FFFFFFFFFFFFull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x00000000000000F8ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0xBFFFFFFFFFFE0000ull, 0x00000000000000B6ull,
0x0000000007FF0000ull, 0x00010000FFFFF800ull, 0x0000000000000000ull, 0x00003D9F9FC00000ull,
0xFFFF000000020000ull, 0x00000000000007FFull, 0x0001FFC000000000ull, 0x200FF80000000000ull,
0x00003EEFFBC00000ull, 0x000000000E000000ull, 0x0000000000000000ull, 0xFFFFFFFBFFF80000ull,
0xDC0000000000000Full, 0x0000000C00FEFFFFull, 0xD00000000000000Eull, 0x4000000C0080399Full,
0xD00000000000000Eull, 0x0023000000023987ull, 0xD00000000000000Eull, 0xFC00000C00003BBFull,
0xD00000000000000Eull, 0x0000000C00E0399Full, 0xC000000000000004ull, 0x0000000000803DC7ull,
0xC00000000000001Full, 0x0000000C00603DDFull, 0xD00000000000000Eull, 0x0000000C00603DDFull,
0xD80000000000000Full, 0x0000000C00803DDFull, 0x000000000000000Eull, 0x000C0000FF5F8400ull,
0x07F2000000000000ull, 0x0000000000007F80ull, 0x1FF2000000000000ull, 0x0000000000003F00ull,
0xC2A0000003000000ull, 0xFFFE000000000000ull, 0x1FFFFFFFFEFFE0DFull, 0x0000000000000040ull,
0x7FFFF80000000000ull, 0x001E3F9DC3C00000ull, 0x000000003C00BFFCull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x00000000E0000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x001C0000001C0000ull, 0x000C0000000C0000ull, 0xFFF0000000000000ull, 0x00000000200FFFFFull,
0x0000000000003800ull, 0x0000000000000000ull, 0x0000020000000060ull, 0x0000000000000000ull,
0x0FFF0FFF00000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x000000000F800000ull, 0x9FFFFFFF7FE00000ull, 0xBFFF000000000000ull, 0x0000000000000001ull,
0xFFF000000000001Full, 0x000FF8000000001Full, 0x00003FFE00000007ull, 0x000FFFC000000000ull,
0x00FFFFF000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x039021FFFFF70000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0xFBFFFFFFFFFFFFFFull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0001FFE21FFF0000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0003800000000000ull,
0x0000000000000000ull, 0x8000000000000000ull, 0x0000000000000000ull, 0xFFFFFFFF00000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000FC0000000000ull, 0x0000000000000000ull, 0x0000000006000000ull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x300ull) / 0x40ull]
& (0x1ull << (static_cast<ui64>(cp) % 0x40ull));
}
case 0x02: // [2] 72F8 - AAF3
{
if (cp < U'\uA66F' || cp > U'\uAAEF')
return false;
constexpr ui64 bitmask_table_1[] =
{
0x0001800000007FE1ull, 0x0000000000000000ull, 0x0000000000000006ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x21F0000010880000ull, 0x0000000000000000ull,
0x0000000000060000ull, 0xFFFE0000007FFFE0ull, 0x7F80000000010007ull, 0x0000001FFF000000ull,
0x00000000001E0000ull, 0x004000000003FFF0ull, 0xFC00000000000000ull, 0x00000000601000FFull,
0x0000000000007000ull, 0xF00000000005833Aull, 0x0000000000000001ull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0xA66Full) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0xA66Full) % 0x40ull));
}
case 0x03: return cp == U'\uAAF5' || cp == U'\uAAF6' || (cp >= U'\uABE3' && cp <= U'\uABEA') || cp == U'\uABEC'
|| cp == U'\uABED';
case 0x04: // [4] E2F0 - 11AEB
{
if (cp < U'\uFB1E' || cp > U'\U00011A99')
return false;
constexpr ui64 bitmask_table_1[] =
{
0x0000000000000001ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0003FFFC00000000ull,
0x000000000003FFFCull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000080000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000004ull,
0x0000000000000000ull, 0x000000001F000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0003C1B800000000ull,
0x000000021C000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000180ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x00000000000003C0ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000006000ull, 0x0000000000000000ull,
0x0007FF0000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000001C00000000ull,
0x000001FFFC000000ull, 0x0000001E00000000ull, 0x000000001FFC0000ull, 0x0000001C00000000ull,
0x00000180007FFE00ull, 0x0000001C00200000ull, 0x00037807FFE00000ull, 0x0000000000000000ull,
0x0000000103FFC000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000003C00001FFEull,
0x0200E67F60000000ull, 0x00000000007C7F30ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x000001FFFF800000ull, 0x0000000000000001ull, 0x0000003FFFFC0000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0xC0000007FCFE0000ull, 0x0000000000000000ull,
0x00000007FFFC0000ull, 0x0000000000000000ull, 0x0000000003FFE000ull, 0x8000000000000000ull,
0x0000000000003FFFull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x000000001FFFC000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x00000035E6FC0000ull, 0x0000000000000000ull, 0xF3F8000000000000ull, 0x00001FF800000047ull,
0x3FF80201EFE00000ull, 0x0FFFF00000000000ull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0xFB1Eull) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0xFB1Eull) % 0x40ull));
}
case 0x05: // [5] 11AEC - 152E7
{
if (cp < U'\U00011C2F' || cp > U'\U00011EF6')
return false;
constexpr ui64 bitmask_table_1[] =
{
0x000000000001FEFFull, 0xFDFFFFF800000000ull, 0x00000000000000FFull, 0x0000000000000000ull,
0x00000000017F68FCull, 0x000001F6F8000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x00000000000000F0ull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x11C2Full) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0x11C2Full) % 0x40ull));
}
case 0x06: // [6] 152E8 - 18AE3
{
if (cp < U'\U00016AF0' || cp > U'\U00016FF1')
return false;
constexpr ui64 bitmask_table_1[] =
{
0x000000000000001Full, 0x000000000000007Full, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0xFFFFFFFE80000000ull, 0x0000000780FFFFFFull, 0x0010000000000000ull,
0x0000000000000003ull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x16AF0ull) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0x16AF0ull) % 0x40ull));
}
case 0x07: return cp >= U'\U0001BC9D' && cp <= U'\U0001BC9E';
case 0x08: // [8] 1C2E0 - 1FADB
{
if (cp < U'\U0001D165' || cp > U'\U0001E94A')
return false;
constexpr ui64 bitmask_table_1[] =
{
0x0000007F3FC03F1Full, 0x00000000000001E0ull, 0x0000000000000000ull, 0x00000000E0000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0xFFFFFFFFF8000000ull, 0xFFFFFFFFFFC3FFFFull,
0xF7C00000800100FFull, 0x00000000000007FFull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0xDFCFFFFBF8000000ull, 0x000000000000003Eull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x000000000003F800ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000780ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull, 0x0000000000000000ull,
0x0000000000000000ull, 0x0003F80000000000ull, 0x0000000000000000ull, 0x0000003F80000000ull,
};
return bitmask_table_1[(static_cast<ui64>(cp) - 0x1D165ull) / 0x40ull]
& (0x1ull << ((static_cast<ui64>(cp) - 0x1D165ull) % 0x40ull));
}
case 0x3F: return cp >= U'\U000E0100';
TOML_NO_DEFAULT_CASE;
}
}
#endif // TOML_LANG_UNRELEASED
} // toml::impl
#pragma endregion
//-------------------------------------- ↑ toml_utf8_generated.h -----------------------------------------------------
//-------------------------------------------------------------------- ↓ toml_utf8.h ---------------------------------
#pragma region
namespace toml::impl
{
template <typename... T>
[[nodiscard]]
TOML_GNU_ATTR(const)
constexpr bool is_match(char32_t codepoint, T... vals) noexcept
{
static_assert((std::is_same_v<char32_t, T> && ...));
return ((codepoint == vals) || ...);
}
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
constexpr bool is_ascii_whitespace(char32_t codepoint) noexcept
{
return codepoint == U'\t' || codepoint == U' ';
}
[[nodiscard]]
TOML_GNU_ATTR(const)
constexpr bool is_unicode_whitespace(char32_t codepoint) noexcept
{
// see: https://en.wikipedia.org/wiki/Whitespace_character#Unicode
// (characters that don't say "is a line-break")
return codepoint == U'\u00A0' // no-break space
|| codepoint == U'\u1680' // ogham space mark
|| (codepoint >= U'\u2000' && codepoint <= U'\u200A') // em quad -> hair space
|| codepoint == U'\u202F' // narrow no-break space
|| codepoint == U'\u205F' // medium mathematical space
|| codepoint == U'\u3000' // ideographic space
;
}
[[nodiscard]]
TOML_GNU_ATTR(const)
constexpr bool is_whitespace(char32_t codepoint) noexcept
{
return is_ascii_whitespace(codepoint) || is_unicode_whitespace(codepoint);
}
template <bool IncludeCarriageReturn = true>
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
constexpr bool is_ascii_line_break(char32_t codepoint) noexcept
{
constexpr auto low_range_end = IncludeCarriageReturn ? U'\r' : U'\f';
return (codepoint >= U'\n' && codepoint <= low_range_end);
}
[[nodiscard]]
TOML_GNU_ATTR(const)
constexpr bool is_unicode_line_break(char32_t codepoint) noexcept
{
// see https://en.wikipedia.org/wiki/Whitespace_character#Unicode
// (characters that say "is a line-break")
return codepoint == U'\u0085' // next line
|| codepoint == U'\u2028' // line separator
|| codepoint == U'\u2029' // paragraph separator
;
}
template <bool IncludeCarriageReturn = true>
[[nodiscard]]
TOML_GNU_ATTR(const)
constexpr bool is_line_break(char32_t codepoint) noexcept
{
return is_ascii_line_break<IncludeCarriageReturn>(codepoint) || is_unicode_line_break(codepoint);
}
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
constexpr bool is_string_delimiter(char32_t codepoint) noexcept
{
return codepoint == U'"' || codepoint == U'\'';
}
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
constexpr bool is_ascii_letter(char32_t codepoint) noexcept
{
return (codepoint >= U'a' && codepoint <= U'z')
|| (codepoint >= U'A' && codepoint <= U'Z');
}
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
constexpr bool is_binary_digit(char32_t codepoint) noexcept
{
return codepoint == U'0' || codepoint == U'1';
}
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
constexpr bool is_octal_digit(char32_t codepoint) noexcept
{
return (codepoint >= U'0' && codepoint <= U'7');
}
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
constexpr bool is_decimal_digit(char32_t codepoint) noexcept
{
return (codepoint >= U'0' && codepoint <= U'9');
}
template <typename T>
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
constexpr std::uint_least32_t hex_to_dec(T codepoint) noexcept
{
if constexpr (std::is_same_v<remove_cvref_t<T>, std::uint_least32_t>)
return codepoint >= 0x41u // >= 'A'
? 10u + (codepoint | 0x20u) - 0x61u // - 'a'
: codepoint - 0x30u // - '0'
;
else
return hex_to_dec(static_cast<std::uint_least32_t>(codepoint));
}
[[nodiscard]]
TOML_GNU_ATTR(const)
constexpr bool is_bare_key_character(char32_t codepoint) noexcept
{
return is_ascii_letter(codepoint)
|| is_decimal_digit(codepoint)
|| codepoint == U'-'
|| codepoint == U'_'
#if TOML_LANG_UNRELEASED // toml/issues/644 ('+' in bare keys) & toml/issues/687 (unicode bare keys)
|| codepoint == U'+'
|| is_unicode_letter(codepoint)
|| is_unicode_number(codepoint)
|| is_unicode_combining_mark(codepoint)
#endif
;
}
[[nodiscard]]
TOML_GNU_ATTR(const)
constexpr bool is_value_terminator(char32_t codepoint) noexcept
{
return is_ascii_line_break(codepoint)
|| is_ascii_whitespace(codepoint)
|| codepoint == U']'
|| codepoint == U'}'
|| codepoint == U','
|| codepoint == U'#'
|| is_unicode_line_break(codepoint)
|| is_unicode_whitespace(codepoint)
;
}
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
constexpr bool is_control_character(char32_t codepoint) noexcept
{
return codepoint <= U'\u001F' || codepoint == U'\u007F';
}
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
constexpr bool is_nontab_control_character(char32_t codepoint) noexcept
{
return codepoint <= U'\u0008'
|| (codepoint >= U'\u000A' && codepoint <= U'\u001F')
|| codepoint == U'\u007F';
}
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
constexpr bool is_unicode_surrogate(char32_t codepoint) noexcept
{
return codepoint >= 0xD800u && codepoint <= 0xDFFF;
}
struct utf8_decoder final
{
uint_least32_t state{};
char32_t codepoint{};
static constexpr uint8_t state_table[]
{
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8,
0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
12,36,12,12,12,12,12,12,12,12,12,12
};
[[nodiscard]] TOML_ALWAYS_INLINE
constexpr bool error() const noexcept
{
return state == uint_least32_t{ 12u };
}
[[nodiscard]] TOML_ALWAYS_INLINE
constexpr bool has_code_point() const noexcept
{
return state == uint_least32_t{};
}
[[nodiscard]] TOML_ALWAYS_INLINE
constexpr bool needs_more_input() const noexcept
{
return state > uint_least32_t{} && state != uint_least32_t{ 12u };
}
constexpr void operator () (uint8_t byte) noexcept
{
TOML_ASSERT(!error());
const auto type = state_table[byte];
codepoint = static_cast<char32_t>(
has_code_point()
? (uint_least32_t{ 255u } >> type) & byte
: (byte & uint_least32_t{ 63u }) | (static_cast<uint_least32_t>(codepoint) << 6)
);
state = state_table[state + uint_least32_t{ 256u } + type];
}
};
}
#pragma endregion
//-------------------------------------------------------------------- ↑ toml_utf8.h ---------------------------------
//------------------------------------------------------------------------------------------ ↓ toml_formatter.h ------
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_SWITCH_WARNINGS
TOML_DISABLE_PADDING_WARNINGS
namespace toml
{
enum class format_flags : uint8_t
{
none,
quote_dates_and_times = 1
};
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
constexpr format_flags operator & (format_flags lhs, format_flags rhs) noexcept
{
return static_cast<format_flags>(impl::unbox_enum(lhs) & impl::unbox_enum(rhs));
}
[[nodiscard]]
TOML_GNU_ATTR(const)
TOML_ALWAYS_INLINE
constexpr format_flags operator | (format_flags lhs, format_flags rhs) noexcept
{
return static_cast<format_flags>( impl::unbox_enum(lhs) | impl::unbox_enum(rhs) );
}
}
namespace toml::impl
{
template <typename Char = char>
class TOML_API formatter
{
private:
const toml::node* source_;
std::basic_ostream<Char>* stream_ = nullptr;
format_flags flags_;
int8_t indent_;
bool naked_newline_;
protected:
[[nodiscard]] const toml::node& source() const noexcept { return *source_; }
[[nodiscard]] format_flags flags() const noexcept { return flags_; }
[[nodiscard]] std::basic_ostream<Char>& stream() const noexcept { return *stream_; }
static constexpr size_t indent_columns = 4;
static constexpr toml::string_view indent_string = TOML_STRING_PREFIX(" "sv);
[[nodiscard]] int8_t indent() const noexcept { return indent_; }
void indent(int8_t level) noexcept { indent_ = level; }
void increase_indent() noexcept { indent_++; }
void decrease_indent() noexcept { indent_--; }
TOML_ALWAYS_INLINE
void clear_naked_newline() noexcept { naked_newline_ = false; }
void attach(std::basic_ostream<Char>& stream) noexcept
{
indent_ = {};
naked_newline_ = true;
stream_ = &stream;
}
void detach() noexcept
{
stream_ = nullptr;
}
void print_newline(bool force = false)
{
if (!naked_newline_ || force)
{
print_to_stream('\n', *stream_);
naked_newline_ = true;
}
}
void print_indent()
{
for (int8_t i = 0; i < indent_; i++)
{
print_to_stream(indent_string, *stream_);
naked_newline_ = false;
}
}
void print_quoted_string(toml::string_view str)
{
if (str.empty())
print_to_stream("\"\""sv, *stream_);
else
{
print_to_stream('"', *stream_);
print_to_stream_with_escapes(str, *stream_);
print_to_stream('"', *stream_);
}
naked_newline_ = false;
}
template <typename T>
void print(const value<T>& val)
{
if constexpr (std::is_same_v<T, string>)
{
print_quoted_string(val.get());
}
else
{
static constexpr auto is_dt =
std::is_same_v<T, date>
|| std::is_same_v<T, time>
|| std::is_same_v<T, date_time>;
if constexpr (is_dt)
{
if ((flags_ & format_flags::quote_dates_and_times) != format_flags::none)
print_to_stream('"', *stream_);
}
*stream_ << val;
if constexpr (is_dt)
{
if ((flags_ & format_flags::quote_dates_and_times) != format_flags::none)
print_to_stream('"', *stream_);
}
naked_newline_ = false;
}
}
void print_value(const node& val_node, node_type type)
{
TOML_ASSUME(type > node_type::array);
switch (type)
{
case node_type::string: print(*reinterpret_cast<const value<string>*>(&val_node)); break;
case node_type::integer: print(*reinterpret_cast<const value<int64_t>*>(&val_node)); break;
case node_type::floating_point: print(*reinterpret_cast<const value<double>*>(&val_node)); break;
case node_type::boolean: print(*reinterpret_cast<const value<bool>*>(&val_node)); break;
case node_type::date: print(*reinterpret_cast<const value<date>*>(&val_node)); break;
case node_type::time: print(*reinterpret_cast<const value<time>*>(&val_node)); break;
case node_type::date_time: print(*reinterpret_cast<const value<date_time>*>(&val_node)); break;
TOML_NO_DEFAULT_CASE;
}
}
formatter(const toml::node& source, format_flags flags) noexcept
: source_{ &source },
flags_{ flags }
{}
};
#if !TOML_ALL_INLINE
extern template class TOML_API formatter<char>;
#endif
}
TOML_POP_WARNINGS // TOML_DISABLE_SWITCH_WARNINGS, TOML_DISABLE_PADDING_WARNINGS
#pragma endregion
//------------------------------------------------------------------------------------------ ↑ toml_formatter.h ------
//----------- ↓ toml_default_formatter.h -----------------------------------------------------------------------------
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_SWITCH_WARNINGS
TOML_DISABLE_PADDING_WARNINGS
namespace toml::impl
{
[[nodiscard]] TOML_API
toml::string default_formatter_make_key_segment(const toml::string& str) noexcept;
[[nodiscard]] TOML_API
size_t default_formatter_inline_columns(const node& node) noexcept;
[[nodiscard]] TOML_API
bool default_formatter_forces_multiline(const node& node, size_t starting_column_bias = 0) noexcept;
}
namespace toml
{
template <typename T, typename U>
std::basic_ostream<T>& operator << (std::basic_ostream<T>&, default_formatter<U>&);
template <typename T, typename U>
std::basic_ostream<T>& operator << (std::basic_ostream<T>&, default_formatter<U>&&);
template <typename Char = char>
class TOML_API default_formatter final : impl::formatter<Char>
{
private:
using base = impl::formatter<Char>;
std::vector<toml::string> key_path;
void print_key_segment(const toml::string& str)
{
if (str.empty())
impl::print_to_stream("''"sv, base::stream());
else
{
bool requiresQuotes = false;
{
impl::utf8_decoder decoder;
for (size_t i = 0; i < str.length() && !requiresQuotes; i++)
{
decoder(static_cast<uint8_t>(str[i]));
if (decoder.error())
requiresQuotes = true;
else if (decoder.has_code_point())
requiresQuotes = !impl::is_bare_key_character(decoder.codepoint);
}
}
if (requiresQuotes)
base::print_quoted_string(str);
else
impl::print_to_stream(str, base::stream());
}
base::clear_naked_newline();
}
void print_key_path()
{
for (const auto& segment : key_path)
{
if (std::addressof(segment) > key_path.data())
impl::print_to_stream('.', base::stream());
impl::print_to_stream(segment, base::stream());
}
base::clear_naked_newline();
}
void print_inline(const table& /*tbl*/);
void print(const array& arr)
{
if (arr.empty())
impl::print_to_stream("[]"sv, base::stream());
else
{
const auto original_indent = base::indent();
const auto multiline = impl::default_formatter_forces_multiline(
arr,
base::indent_columns * static_cast<size_t>(original_indent < 0 ? 0 : original_indent)
);
impl::print_to_stream("["sv, base::stream());
if (multiline)
{
if (original_indent < 0)
base::indent(0);
base::increase_indent();
}
else
impl::print_to_stream(' ', base::stream());
for (size_t i = 0; i < arr.size(); i++)
{
if (i > 0_sz)
{
impl::print_to_stream(',', base::stream());
if (!multiline)
impl::print_to_stream(' ', base::stream());
}
if (multiline)
{
base::print_newline(true);
base::print_indent();
}
auto& v = arr[i];
const auto type = v.type();
TOML_ASSUME(type != node_type::none);
switch (type)
{
case node_type::table: print_inline(*reinterpret_cast<const table*>(&v)); break;
case node_type::array: print(*reinterpret_cast<const array*>(&v)); break;
default:
base::print_value(v, type);
}
}
if (multiline)
{
base::indent(original_indent);
base::print_newline(true);
base::print_indent();
}
else
impl::print_to_stream(' ', base::stream());
impl::print_to_stream("]"sv, base::stream());
}
base::clear_naked_newline();
}
void print(const table& tbl)
{
static constexpr auto is_non_inline_array_of_tables = [](auto&& nde) noexcept
{
auto arr = nde.as_array();
return arr
&& arr->is_array_of_tables()
&& !arr->template get_as<table>(0_sz)->is_inline();
};
//values, arrays, and inline tables/table arrays
for (auto&& [k, v] : tbl)
{
const auto type = v.type();
if ((type == node_type::table && !reinterpret_cast<const table*>(&v)->is_inline())
|| (type == node_type::array && is_non_inline_array_of_tables(v)))
continue;
base::print_newline();
base::print_indent();
print_key_segment(k);
impl::print_to_stream(" = "sv, base::stream());
TOML_ASSUME(type != node_type::none);
switch (type)
{
case node_type::table: print_inline(*reinterpret_cast<const table*>(&v)); break;
case node_type::array: print(*reinterpret_cast<const array*>(&v)); break;
default:
base::print_value(v, type);
}
}
//non-inline tables
for (auto&& [k, v] : tbl)
{
const auto type = v.type();
if (type != node_type::table || reinterpret_cast<const table*>(&v)->is_inline())
continue;
auto& child_tbl = *reinterpret_cast<const table*>(&v);
//we can skip indenting and emitting the headers for tables that only contain other tables
//(so we don't over-nest)
size_t child_value_count{}; //includes inline tables and non-table arrays
size_t child_table_count{};
size_t child_table_array_count{};
for (auto&& [child_k, child_v] : child_tbl)
{
(void)child_k;
const auto child_type = child_v.type();
TOML_ASSUME(child_type != node_type::none);
switch (child_type)
{
case node_type::table:
if (reinterpret_cast<const table*>(&child_v)->is_inline())
child_value_count++;
else
child_table_count++;
break;
case node_type::array:
if (is_non_inline_array_of_tables(child_v))
child_table_array_count++;
else
child_value_count++;
break;
default:
child_value_count++;
}
}
bool skip_self = false;
if (child_value_count == 0_sz && (child_table_count > 0_sz || child_table_array_count > 0_sz))
skip_self = true;
if (!skip_self)
base::increase_indent();
key_path.push_back(impl::default_formatter_make_key_segment(k));
if (!skip_self)
{
base::print_newline();
base::print_newline(true);
base::print_indent();
impl::print_to_stream("["sv, base::stream());
print_key_path();
impl::print_to_stream("]"sv, base::stream());
base::print_newline(true);
}
print(child_tbl);
key_path.pop_back();
if (!skip_self)
base::decrease_indent();
}
//table arrays
for (auto&& [k, v] : tbl)
{
if (!is_non_inline_array_of_tables(v))
continue;
auto& arr = *reinterpret_cast<const array*>(&v);
base::increase_indent();
key_path.push_back(impl::default_formatter_make_key_segment(k));
for (size_t i = 0; i < arr.size(); i++)
{
base::print_newline();
base::print_newline(true);
base::print_indent();
impl::print_to_stream("[["sv, base::stream());
print_key_path();
impl::print_to_stream("]]"sv, base::stream());
base::print_newline(true);
print(*reinterpret_cast<const table*>(&arr[i]));
}
key_path.pop_back();
base::decrease_indent();
}
}
void print()
{
switch (auto source_type = base::source().type())
{
case node_type::table:
{
auto& tbl = *reinterpret_cast<const table*>(&base::source());
if (tbl.is_inline())
print_inline(tbl);
else
{
base::decrease_indent(); // so root kvps and tables have the same indent
print(tbl);
}
break;
}
case node_type::array:
print(*reinterpret_cast<const array*>(&base::source()));
break;
default:
base::print_value(base::source(), source_type);
}
}
public:
TOML_NODISCARD_CTOR
explicit default_formatter(const toml::node& source, format_flags flags = {}) noexcept
: base{ source, flags }
{}
template <typename T, typename U>
friend std::basic_ostream<T>& operator << (std::basic_ostream<T>&, default_formatter<U>&);
template <typename T, typename U>
friend std::basic_ostream<T>& operator << (std::basic_ostream<T>&, default_formatter<U>&&);
};
#if !TOML_ALL_INLINE
extern template class TOML_API default_formatter<char>;
#endif
default_formatter(const table&) -> default_formatter<char>;
default_formatter(const array&) -> default_formatter<char>;
template <typename T> default_formatter(const value<T>&) -> default_formatter<char>;
template <typename T, typename U>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<T>& operator << (std::basic_ostream<T>& lhs, default_formatter<U>& rhs)
{
rhs.attach(lhs);
rhs.key_path.clear();
rhs.print();
rhs.detach();
return lhs;
}
template <typename T, typename U>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<T>& operator << (std::basic_ostream<T>& lhs, default_formatter<U>&& rhs)
{
return lhs << rhs; //as lvalue
}
template <typename Char>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>& lhs, const table& rhs)
{
return lhs << default_formatter<Char>{ rhs };
}
template <typename Char>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>& lhs, const array& rhs)
{
return lhs << default_formatter<Char>{ rhs };
}
#if !TOML_ALL_INLINE
extern template TOML_API std::ostream& operator << (std::ostream&, default_formatter<char>&);
extern template TOML_API std::ostream& operator << (std::ostream&, default_formatter<char>&&);
extern template TOML_API std::ostream& operator << (std::ostream&, const table&);
extern template TOML_API std::ostream& operator << (std::ostream&, const array&);
#endif
}
TOML_POP_WARNINGS // TOML_DISABLE_SWITCH_WARNINGS, TOML_DISABLE_PADDING_WARNINGS
#pragma endregion
//----------- ↑ toml_default_formatter.h -----------------------------------------------------------------------------
//-------------------------------------- ↓ toml_json_formatter.h -----------------------------------------------------
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_SWITCH_WARNINGS
TOML_DISABLE_PADDING_WARNINGS
namespace toml
{
template <typename T, typename U>
std::basic_ostream<T>& operator << (std::basic_ostream<T>&, json_formatter<U>&);
template <typename T, typename U>
std::basic_ostream<T>& operator << (std::basic_ostream<T>&, json_formatter<U>&&);
template <typename Char = char>
class TOML_API json_formatter final : impl::formatter<Char>
{
private:
using base = impl::formatter<Char>;
void print(const toml::table& tbl);
void print(const array& arr)
{
if (arr.empty())
impl::print_to_stream("[]"sv, base::stream());
else
{
impl::print_to_stream('[', base::stream());
base::increase_indent();
for (size_t i = 0; i < arr.size(); i++)
{
if (i > 0_sz)
impl::print_to_stream(',', base::stream());
base::print_newline(true);
base::print_indent();
auto& v = arr[i];
const auto type = v.type();
TOML_ASSUME(type != node_type::none);
switch (type)
{
case node_type::table: print(*reinterpret_cast<const table*>(&v)); break;
case node_type::array: print(*reinterpret_cast<const array*>(&v)); break;
default:
base::print_value(v, type);
}
}
base::decrease_indent();
base::print_newline(true);
base::print_indent();
impl::print_to_stream(']', base::stream());
}
base::clear_naked_newline();
}
void print()
{
switch (auto source_type = base::source().type())
{
case node_type::table: print(*reinterpret_cast<const table*>(&base::source())); break;
case node_type::array: print(*reinterpret_cast<const array*>(&base::source())); break;
default: base::print_value(base::source(), source_type);
}
}
public:
TOML_NODISCARD_CTOR
explicit json_formatter(const toml::node& source, format_flags flags = {}) noexcept
: base{ source, flags | format_flags::quote_dates_and_times }
{}
template <typename T, typename U>
friend std::basic_ostream<T>& operator << (std::basic_ostream<T>&, json_formatter<U>&);
template <typename T, typename U>
friend std::basic_ostream<T>& operator << (std::basic_ostream<T>&, json_formatter<U>&&);
};
#if !TOML_ALL_INLINE
extern template class TOML_API json_formatter<char>;
#endif
json_formatter(const table&) -> json_formatter<char>;
json_formatter(const array&) -> json_formatter<char>;
template <typename T> json_formatter(const value<T>&) -> json_formatter<char>;
template <typename T, typename U>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<T>& operator << (std::basic_ostream<T>& lhs, json_formatter<U>& rhs)
{
rhs.attach(lhs);
rhs.print();
rhs.detach();
return lhs;
}
template <typename T, typename U>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<T>& operator << (std::basic_ostream<T>& lhs, json_formatter<U>&& rhs)
{
return lhs << rhs; //as lvalue
}
#if !TOML_ALL_INLINE
extern template TOML_API std::ostream& operator << (std::ostream&, json_formatter<char>&);
extern template TOML_API std::ostream& operator << (std::ostream&, json_formatter<char>&&);
#endif
}
TOML_POP_WARNINGS // TOML_DISABLE_SWITCH_WARNINGS, TOML_DISABLE_PADDING_WARNINGS
#pragma endregion
//-------------------------------------- ↑ toml_json_formatter.h -----------------------------------------------------
#if TOML_PARSER
//---------------------------------------------------------------- ↓ toml_parse_error.h ------------------------------
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_ALL_WARNINGS
#if TOML_EXCEPTIONS
#include <stdexcept>
#endif
TOML_POP_WARNINGS
TOML_PUSH_WARNINGS
TOML_DISABLE_INIT_WARNINGS
TOML_DISABLE_VTABLE_WARNINGS
namespace toml
{
#if TOML_LARGE_FILES
TOML_ABI_NAMESPACE_START(lf)
#else
TOML_ABI_NAMESPACE_START(sf)
#endif
#if TOML_DOXYGEN || !TOML_EXCEPTIONS
TOML_ABI_NAMESPACE_START(noex)
class parse_error final
{
private:
std::string description_;
source_region source_;
public:
TOML_NODISCARD_CTOR
parse_error(std::string&& desc, source_region&& src) noexcept
: description_{ std::move(desc) },
source_{ std::move(src) }
{}
TOML_NODISCARD_CTOR
parse_error(std::string&& desc, const source_region& src) noexcept
: parse_error{ std::move(desc), source_region{ src } }
{}
TOML_NODISCARD_CTOR
parse_error(std::string&& desc, const source_position& position, const source_path_ptr& path = {}) noexcept
: parse_error{ std::move(desc), source_region{ position, position, path } }
{}
[[nodiscard]]
std::string_view description() const noexcept
{
return description_;
}
[[nodiscard]]
const source_region& source() const noexcept
{
return source_;
}
};
#else
TOML_ABI_NAMESPACE_START(ex)
class parse_error final
: public std::runtime_error
{
private:
source_region source_;
public:
TOML_NODISCARD_CTOR
TOML_GNU_ATTR(nonnull)
parse_error(const char* desc, source_region&& src) noexcept
: std::runtime_error{ desc },
source_{ std::move(src) }
{}
TOML_NODISCARD_CTOR
TOML_GNU_ATTR(nonnull)
parse_error(const char* desc, const source_region& src) noexcept
: parse_error{ desc, source_region{ src } }
{}
TOML_NODISCARD_CTOR
TOML_GNU_ATTR(nonnull)
parse_error(const char* desc, const source_position& position, const source_path_ptr& path = {}) noexcept
: parse_error{ desc, source_region{ position, position, path } }
{}
[[nodiscard]]
std::string_view description() const noexcept
{
return std::string_view{ what() };
}
[[nodiscard]]
const source_region& source() const noexcept
{
return source_;
}
};
#endif
TOML_ABI_NAMESPACE_END // TOML_EXCEPTIONS
TOML_ABI_NAMESPACE_END // TOML_LARGE_FILES
template <typename Char>
TOML_EXTERNAL_LINKAGE
std::basic_ostream<Char>& operator << (std::basic_ostream<Char>& lhs, const parse_error& rhs)
{
lhs << rhs.description();
lhs << "\n\t(error occurred at "sv;
lhs << rhs.source();
lhs << ")"sv;
return lhs;
}
#if !TOML_ALL_INLINE
extern template TOML_API std::ostream& operator << (std::ostream&, const parse_error&);
#endif
}
TOML_POP_WARNINGS
#pragma endregion
//---------------------------------------------------------------- ↑ toml_parse_error.h ------------------------------
//----------------------------------------------------------------------------------------- ↓ toml_utf8_streams.h ----
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_PADDING_WARNINGS
namespace toml::impl
{
template <typename T>
class utf8_byte_stream;
inline constexpr auto utf8_byte_order_mark = "\xEF\xBB\xBF"sv;
template <typename Char>
class utf8_byte_stream<std::basic_string_view<Char>> final
{
static_assert(sizeof(Char) == 1_sz);
private:
std::basic_string_view<Char> source;
size_t position = {};
public:
explicit constexpr utf8_byte_stream(std::basic_string_view<Char> sv) noexcept
: source{ sv }
{
// trim trailing nulls
size_t actual_len = source.length();
for (size_t i = actual_len; i --> 0_sz;)
{
if (source[i] != Char{}) // not '\0'
{
actual_len = i + 1_sz;
break;
}
}
if (source.length() != actual_len) // not '\0'
source = source.substr(0_sz, actual_len);
// skip bom
if (source.length() >= 3_sz && memcmp(utf8_byte_order_mark.data(), source.data(), 3_sz) == 0)
position += 3_sz;
}
[[nodiscard]] TOML_ALWAYS_INLINE
constexpr bool eof() const noexcept
{
return position >= source.length();
}
[[nodiscard]] TOML_ALWAYS_INLINE
constexpr bool peek_eof() const noexcept
{
return eof();
}
[[nodiscard]] TOML_ALWAYS_INLINE
constexpr bool error() const noexcept
{
return false;
}
[[nodiscard]]
constexpr unsigned int operator() () noexcept
{
if (position >= source.length())
return 0xFFFFFFFFu;
return static_cast<unsigned int>(static_cast<uint8_t>(source[position++]));
}
};
template <typename Char>
class utf8_byte_stream<std::basic_istream<Char>> final
{
static_assert(sizeof(Char) == 1_sz);
private:
std::basic_istream<Char>* source;
public:
explicit utf8_byte_stream(std::basic_istream<Char>& stream)
: source{ &stream }
{
if (!*source)
return;
using stream_traits = typename std::remove_pointer_t<decltype(source)>::traits_type;
const auto initial_pos = source->tellg();
size_t bom_pos{};
Char bom[3];
for (; bom_pos < 3_sz && *source; bom_pos++)
{
const auto next = source->get();
if (next == stream_traits::eof())
break;
bom[bom_pos] = static_cast<Char>(next);
}
if (!*source || bom_pos < 3_sz || memcmp(utf8_byte_order_mark.data(), bom, 3_sz) != 0)
source->seekg(initial_pos);
}
[[nodiscard]] TOML_ALWAYS_INLINE
bool eof() const noexcept
{
return source->eof();
}
[[nodiscard]] TOML_ALWAYS_INLINE
bool peek_eof() const
{
using stream_traits = typename std::remove_pointer_t<decltype(source)>::traits_type;
return eof() || source->peek() == stream_traits::eof();
}
[[nodiscard]] TOML_ALWAYS_INLINE
bool error() const noexcept
{
return !(*source);
}
[[nodiscard]]
unsigned int operator() ()
{
auto val = source->get();
if (val == std::basic_istream<Char>::traits_type::eof())
return 0xFFFFFFFFu;
return static_cast<unsigned int>(val);
}
};
#if TOML_LARGE_FILES
TOML_ABI_NAMESPACE_START(impl_lf)
#else
TOML_ABI_NAMESPACE_START(impl_sf)
#endif
struct utf8_codepoint final
{
char32_t value;
string_char bytes[4];
source_position position;
template <typename Char = string_char>
[[nodiscard]]
TOML_ALWAYS_INLINE
std::basic_string_view<Char> as_view() const noexcept
{
static_assert(
sizeof(Char) == 1,
"The string view's underlying character type must be 1 byte in size."
);
return bytes[3]
? std::basic_string_view<Char>{ reinterpret_cast<const Char*>(bytes), 4_sz }
: std::basic_string_view<Char>{ reinterpret_cast<const Char*>(bytes) };
}
[[nodiscard]]
TOML_GNU_ATTR(pure)
TOML_ALWAYS_INLINE
constexpr operator char32_t& () noexcept
{
return value;
}
[[nodiscard]]
TOML_GNU_ATTR(pure)
TOML_ALWAYS_INLINE
constexpr operator const char32_t& () const noexcept
{
return value;
}
[[nodiscard]]
TOML_GNU_ATTR(pure)
TOML_ALWAYS_INLINE
constexpr const char32_t& operator* () const noexcept
{
return value;
}
};
static_assert(std::is_trivial_v<utf8_codepoint>);
static_assert(std::is_standard_layout_v<utf8_codepoint>);
TOML_ABI_NAMESPACE_END // TOML_LARGE_FILES
#if TOML_EXCEPTIONS
#define TOML_ERROR_CHECK (void)0
#define TOML_ERROR throw parse_error
TOML_ABI_NAMESPACE_START(impl_ex)
#else
#define TOML_ERROR_CHECK if (err) return nullptr
#define TOML_ERROR err.emplace
TOML_ABI_NAMESPACE_START(impl_noex)
#endif
TOML_PUSH_WARNINGS
TOML_DISABLE_VTABLE_WARNINGS
struct TOML_INTERFACE utf8_reader_interface
{
[[nodiscard]]
virtual const source_path_ptr& source_path() const noexcept = 0;
[[nodiscard]]
virtual const utf8_codepoint* read_next() = 0;
[[nodiscard]]
virtual bool peek_eof() const = 0;
#if !TOML_EXCEPTIONS
[[nodiscard]]
virtual optional<parse_error>&& error() noexcept = 0;
#endif
virtual ~utf8_reader_interface() noexcept = default;
};
template <typename T>
class TOML_EMPTY_BASES utf8_reader final
: public utf8_reader_interface
{
private:
utf8_byte_stream<T> stream;
utf8_decoder decoder;
utf8_codepoint codepoints[2];
size_t cp_idx = 1;
uint8_t current_byte_count{};
source_path_ptr source_path_;
#if !TOML_EXCEPTIONS
optional<parse_error> err;
#endif
public:
template <typename U, typename String = std::string_view>
explicit utf8_reader(U && source, String&& source_path = {})
noexcept(std::is_nothrow_constructible_v<utf8_byte_stream<T>, U&&>)
: stream{ std::forward<U>(source) }
{
std::memset(codepoints, 0, sizeof(codepoints));
codepoints[0].position = { 1, 1 };
codepoints[1].position = { 1, 1 };
if (!source_path.empty())
source_path_ = std::make_shared<const std::string>(std::forward<String>(source_path));
}
[[nodiscard]]
const source_path_ptr& source_path() const noexcept override
{
return source_path_;
}
[[nodiscard]]
const utf8_codepoint* read_next() override
{
TOML_ERROR_CHECK;
auto& prev = codepoints[(cp_idx - 1_sz) % 2_sz];
if (stream.eof())
return nullptr;
else if (stream.error())
TOML_ERROR("An error occurred while reading from the underlying stream", prev.position, source_path_ );
else if (decoder.error())
TOML_ERROR( "Encountered invalid utf-8 sequence", prev.position, source_path_ );
TOML_ERROR_CHECK;
while (true)
{
uint8_t next_byte;
{
unsigned int next_byte_raw{ 0xFFFFFFFFu };
if constexpr (noexcept(stream()) || !TOML_EXCEPTIONS)
{
next_byte_raw = stream();
}
#if TOML_EXCEPTIONS
else
{
try
{
next_byte_raw = stream();
}
catch (const std::exception& exc)
{
throw parse_error{ exc.what(), prev.position, source_path_ };
}
catch (...)
{
throw parse_error{ "An unspecified error occurred", prev.position, source_path_ };
}
}
#endif
if (next_byte_raw >= 256u)
{
if (stream.eof())
{
if (decoder.needs_more_input())
TOML_ERROR("Encountered EOF during incomplete utf-8 code point sequence",
prev.position, source_path_);
return nullptr;
}
else
TOML_ERROR("An error occurred while reading from the underlying stream",
prev.position, source_path_);
}
TOML_ERROR_CHECK;
next_byte = static_cast<uint8_t>(next_byte_raw);
}
decoder(next_byte);
if (decoder.error())
TOML_ERROR( "Encountered invalid utf-8 sequence", prev.position, source_path_ );
TOML_ERROR_CHECK;
auto& current = codepoints[cp_idx % 2_sz];
current.bytes[current_byte_count++] = static_cast<string_char>(next_byte);
if (decoder.has_code_point())
{
//store codepoint
current.value = decoder.codepoint;
//reset prev (will be the next 'current')
std::memset(prev.bytes, 0, sizeof(prev.bytes));
current_byte_count = {};
if (is_line_break<false>(current.value))
prev.position = { static_cast<source_index>(current.position.line + 1), 1 };
else
prev.position = { current.position.line, static_cast<source_index>(current.position.column + 1) };
cp_idx++;
return &current;
}
}
TOML_UNREACHABLE;
}
[[nodiscard]]
bool peek_eof() const override
{
return stream.peek_eof();
}
#if !TOML_EXCEPTIONS
[[nodiscard]]
optional<parse_error>&& error() noexcept override
{
return std::move(err);
}
#endif
};
template <typename Char>
utf8_reader(std::basic_string_view<Char>, std::string_view) -> utf8_reader<std::basic_string_view<Char>>;
template <typename Char>
utf8_reader(std::basic_istream<Char>&, std::string_view) -> utf8_reader<std::basic_istream<Char>>;
template <typename Char>
utf8_reader(std::basic_string_view<Char>, std::string&&) -> utf8_reader<std::basic_string_view<Char>>;
template <typename Char>
utf8_reader(std::basic_istream<Char>&, std::string&&) -> utf8_reader<std::basic_istream<Char>>;
#if !TOML_EXCEPTIONS
#undef TOML_ERROR_CHECK
#define TOML_ERROR_CHECK if (reader.error()) return nullptr
#endif
class TOML_EMPTY_BASES utf8_buffered_reader final
: public utf8_reader_interface
{
public:
static constexpr size_t max_history_length = 72;
private:
static constexpr size_t history_buffer_size = max_history_length - 1; //'head' is stored in the reader
utf8_reader_interface& reader;
struct
{
utf8_codepoint buffer[history_buffer_size];
size_t count, first;
}
history = {};
const utf8_codepoint* head = {};
size_t negative_offset = {};
public:
explicit utf8_buffered_reader(utf8_reader_interface& reader_) noexcept
: reader{ reader_ }
{}
[[nodiscard]]
const source_path_ptr& source_path() const noexcept override
{
return reader.source_path();
}
[[nodiscard]]
const utf8_codepoint* read_next() override
{
TOML_ERROR_CHECK;
if (negative_offset)
{
negative_offset--;
// an entry negative offset of 1 just means "replay the current head"
if (!negative_offset)
return head;
// otherwise step back into the history buffer
else
return history.buffer + ((history.first + history.count - negative_offset) % history_buffer_size);
}
else
{
// first character read from stream
if TOML_UNLIKELY(!history.count && !head)
head = reader.read_next();
// subsequent characters and not eof
else if (head)
{
if TOML_UNLIKELY(history.count < history_buffer_size)
history.buffer[history.count++] = *head;
else
history.buffer[(history.first++ + history_buffer_size) % history_buffer_size] = *head;
head = reader.read_next();
}
return head;
}
}
[[nodiscard]]
const utf8_codepoint* step_back(size_t count) noexcept
{
TOML_ERROR_CHECK;
TOML_ASSERT(history.count);
TOML_ASSERT(negative_offset + count <= history.count);
negative_offset += count;
return negative_offset
? history.buffer + ((history.first + history.count - negative_offset) % history_buffer_size)
: head;
}
[[nodiscard]]
bool peek_eof() const override
{
return reader.peek_eof();
}
#if !TOML_EXCEPTIONS
[[nodiscard]]
optional<parse_error>&& error() noexcept override
{
return reader.error();
}
#endif
};
#undef TOML_ERROR_CHECK
#undef TOML_ERROR
TOML_ABI_NAMESPACE_END // TOML_EXCEPTIONS
TOML_POP_WARNINGS
}
TOML_POP_WARNINGS // TOML_DISABLE_PADDING_WARNINGS
#pragma endregion
//----------------------------------------------------------------------------------------- ↑ toml_utf8_streams.h ----
//----------------- ↓ toml_parser.h ----------------------------------------------------------------------------------
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_PADDING_WARNINGS
namespace toml
{
#if TOML_DOXYGEN || !TOML_EXCEPTIONS
TOML_ABI_NAMESPACE_START(parse_noex)
class parse_result final
{
private:
std::aligned_storage_t<
(sizeof(table) < sizeof(parse_error) ? sizeof(parse_error) : sizeof(table)),
(alignof(table) < alignof(parse_error) ? alignof(parse_error) : alignof(table))
> storage;
bool is_err;
void destroy() noexcept
{
if (is_err)
TOML_LAUNDER(reinterpret_cast<parse_error*>(&storage))->~parse_error();
else
TOML_LAUNDER(reinterpret_cast<table*>(&storage))->~table();
}
public:
using iterator = table_iterator;
using const_iterator = const_table_iterator;
[[nodiscard]] bool succeeded() const noexcept { return !is_err; }
[[nodiscard]] bool failed() const noexcept { return is_err; }
[[nodiscard]] explicit operator bool() const noexcept { return !is_err; }
[[nodiscard]] table& get() & noexcept
{
TOML_ASSERT(!is_err);
return *TOML_LAUNDER(reinterpret_cast<table*>(&storage));
}
[[nodiscard]] table&& get() && noexcept
{
TOML_ASSERT(!is_err);
return std::move(*TOML_LAUNDER(reinterpret_cast<table*>(&storage)));
}
[[nodiscard]] const table& get() const& noexcept
{
TOML_ASSERT(!is_err);
return *TOML_LAUNDER(reinterpret_cast<const table*>(&storage));
}
[[nodiscard]] parse_error& error() & noexcept
{
TOML_ASSERT(is_err);
return *TOML_LAUNDER(reinterpret_cast<parse_error*>(&storage));
}
[[nodiscard]] parse_error&& error() && noexcept
{
TOML_ASSERT(is_err);
return std::move(*TOML_LAUNDER(reinterpret_cast<parse_error*>(&storage)));
}
[[nodiscard]] const parse_error& error() const& noexcept
{
TOML_ASSERT(is_err);
return *TOML_LAUNDER(reinterpret_cast<const parse_error*>(&storage));
}
[[nodiscard]] operator table& () noexcept { return get(); }
[[nodiscard]] operator table&& () noexcept { return std::move(get()); }
[[nodiscard]] operator const table& () const noexcept { return get(); }
[[nodiscard]] explicit operator parse_error& () noexcept { return error(); }
[[nodiscard]] explicit operator parse_error && () noexcept { return std::move(error()); }
[[nodiscard]] explicit operator const parse_error& () const noexcept { return error(); }
TOML_NODISCARD_CTOR
explicit parse_result(table&& tbl) noexcept
: is_err{ false }
{
::new (&storage) table{ std::move(tbl) };
}
TOML_NODISCARD_CTOR
explicit parse_result(parse_error&& err) noexcept
: is_err{ true }
{
::new (&storage) parse_error{ std::move(err) };
}
TOML_NODISCARD_CTOR
parse_result(parse_result&& res) noexcept
: is_err{ res.is_err }
{
if (is_err)
::new (&storage) parse_error{ std::move(res).error() };
else
::new (&storage) table{ std::move(res).get() };
}
parse_result& operator=(parse_result&& rhs) noexcept
{
if (is_err != rhs.is_err)
{
destroy();
is_err = rhs.is_err;
if (is_err)
::new (&storage) parse_error{ std::move(rhs).error() };
else
::new (&storage) table{ std::move(rhs).get() };
}
else
{
if (is_err)
error() = std::move(rhs).error();
else
get() = std::move(rhs).get();
}
return *this;
}
~parse_result() noexcept
{
destroy();
}
[[nodiscard]] node_view<node> operator[] (string_view key) noexcept
{
return is_err ? node_view<node>{} : get()[key];
}
[[nodiscard]] node_view<const node> operator[] (string_view key) const noexcept
{
return is_err ? node_view<const node>{} : get()[key];
}
[[nodiscard]] table_iterator begin() noexcept
{
return is_err ? table_iterator{} : get().begin();
}
[[nodiscard]] const_table_iterator begin() const noexcept
{
return is_err ? const_table_iterator{} : get().begin();
}
[[nodiscard]] const_table_iterator cbegin() const noexcept
{
return is_err ? const_table_iterator{} : get().cbegin();
}
[[nodiscard]] table_iterator end() noexcept
{
return is_err ? table_iterator{} : get().end();
}
[[nodiscard]] const_table_iterator end() const noexcept
{
return is_err ? const_table_iterator{} : get().end();
}
[[nodiscard]] const_table_iterator cend() const noexcept
{
return is_err ? const_table_iterator{} : get().cend();
}
};
TOML_ABI_NAMESPACE_END
#else
using parse_result = table;
#endif
}
namespace toml::impl
{
#if TOML_EXCEPTIONS
TOML_ABI_NAMESPACE_START(impl_ex)
#else
TOML_ABI_NAMESPACE_START(impl_noex)
#endif
[[nodiscard]] TOML_API
parse_result do_parse(utf8_reader_interface&&) TOML_MAY_THROW;
TOML_ABI_NAMESPACE_END // TOML_EXCEPTIONS
}
namespace toml
{
#if TOML_EXCEPTIONS
TOML_ABI_NAMESPACE_START(parse_ex)
#else
TOML_ABI_NAMESPACE_START(parse_noex)
#endif
[[nodiscard]]
TOML_API
parse_result parse(std::string_view doc, std::string_view source_path = {}) TOML_MAY_THROW;
[[nodiscard]]
TOML_API
parse_result parse(std::string_view doc, std::string&& source_path) TOML_MAY_THROW;
#ifdef __cpp_lib_char8_t
[[nodiscard]]
TOML_API
parse_result parse(std::u8string_view doc, std::string_view source_path = {}) TOML_MAY_THROW;
[[nodiscard]]
TOML_API
parse_result parse(std::u8string_view doc, std::string&& source_path) TOML_MAY_THROW;
#endif // __cpp_lib_char8_t
template <typename Char>
[[nodiscard]]
TOML_EXTERNAL_LINKAGE
parse_result parse(std::basic_istream<Char>& doc, std::string_view source_path = {}) TOML_MAY_THROW
{
static_assert(
sizeof(Char) == 1,
"The stream's underlying character type must be 1 byte in size."
);
return impl::do_parse(impl::utf8_reader{ doc, source_path });
}
template <typename Char>
[[nodiscard]]
TOML_EXTERNAL_LINKAGE
parse_result parse(std::basic_istream<Char>& doc, std::string&& source_path) TOML_MAY_THROW
{
static_assert(
sizeof(Char) == 1,
"The stream's underlying character type must be 1 byte in size."
);
return impl::do_parse(impl::utf8_reader{ doc, std::move(source_path) });
}
// Q: "why are the parse_file functions templated??"
// A: I don't want to force users to drag in <fstream> if they're not going to do
// any parsing directly from files. Keeping them templated delays their instantiation
// until they're actually required, so only those users wanting to use parse_file()
// are burdened by the <fstream> overhead.
template <typename Char, typename StreamChar = char>
[[nodiscard]]
TOML_EXTERNAL_LINKAGE
parse_result parse_file(std::basic_string_view<Char> file_path) TOML_MAY_THROW
{
static_assert(
sizeof(Char) == 1,
"The path's character type must be 1 byte in size."
);
static_assert(
sizeof(StreamChar) == 1,
"The stream's character type must be 1 byte in size."
);
#if TOML_EXCEPTIONS
#define TOML_PARSE_FILE_ERROR(msg, pos) \
throw parse_error{ msg, pos, std::make_shared<const std::string>(std::move(file_path_str)) }
#else
#define TOML_PARSE_FILE_ERROR(msg, pos) \
return parse_result{ \
parse_error{ msg, pos, std::make_shared<const std::string>(std::move(file_path_str)) } \
}
#endif
auto file_path_str = std::string(reinterpret_cast<const char*>(file_path.data()), file_path.length());
// open file with a custom-sized stack buffer
using ifstream = std::basic_ifstream<StreamChar>;
ifstream file;
StreamChar file_buffer[sizeof(void*) * 4096_sz];
file.rdbuf()->pubsetbuf(file_buffer, sizeof(file_buffer));
file.open(file_path_str, ifstream::in | ifstream::binary | ifstream::ate);
if (!file.is_open())
TOML_PARSE_FILE_ERROR("File could not be opened for reading", source_position{});
// get size
const auto file_size = file.tellg();
if (file_size == -1)
TOML_PARSE_FILE_ERROR("Could not determine file size", source_position{});
file.seekg(0, std::ios::beg);
// if the file size is the sweet spot, read the whole thing into memory and parse from there
constexpr auto small_file_threshold = 1024 * 32; //32 kilobytes
constexpr auto large_file_threshold = 1024 * 1024 * static_cast<int>(sizeof(void*)) * 8; // 64 megabytes on 64-bit
if (file_size >= small_file_threshold && file_size <= large_file_threshold)
{
std::vector<StreamChar> file_data;
file_data.resize(static_cast<size_t>(file_size));
file.read(file_data.data(), file_size);
return parse(std::basic_string_view<StreamChar>{ file_data.data(), file_data.size() }, std::move(file_path_str));
}
// otherwise parse it using the streams
else
return parse(file, std::move(file_path_str));
#undef TOML_PARSE_FILE_ERROR
}
#if !TOML_ALL_INLINE
extern template TOML_API parse_result parse(std::istream&, std::string_view) TOML_MAY_THROW;
extern template TOML_API parse_result parse(std::istream&, std::string&&) TOML_MAY_THROW;
extern template TOML_API parse_result parse_file(std::string_view) TOML_MAY_THROW;
#ifdef __cpp_lib_char8_t
extern template TOML_API parse_result parse_file(std::u8string_view) TOML_MAY_THROW;
#endif
#endif
template <typename Char>
[[nodiscard]]
inline parse_result parse_file(const std::basic_string<Char>& file_path) TOML_MAY_THROW
{
return parse_file(std::basic_string_view<Char>{ file_path });
}
template <typename Char>
[[nodiscard]]
inline parse_result parse_file(const Char* file_path) TOML_MAY_THROW
{
return parse_file(std::basic_string_view<Char>{ file_path });
}
TOML_ABI_NAMESPACE_END // TOML_EXCEPTIONS
inline namespace literals
{
#if TOML_EXCEPTIONS
TOML_ABI_NAMESPACE_START(lit_ex)
#else
TOML_ABI_NAMESPACE_START(lit_noex)
#endif
[[nodiscard]]
TOML_API
parse_result operator"" _toml(const char* str, size_t len) TOML_MAY_THROW;
#ifdef __cpp_lib_char8_t
[[nodiscard]]
TOML_API
parse_result operator"" _toml(const char8_t* str, size_t len) TOML_MAY_THROW;
#endif // __cpp_lib_char8_t
TOML_ABI_NAMESPACE_END // TOML_EXCEPTIONS
}
}
TOML_POP_WARNINGS // TOML_DISABLE_PADDING_WARNINGS
#pragma endregion
//----------------- ↑ toml_parser.h ----------------------------------------------------------------------------------
#endif // TOML_PARSER
#if TOML_IMPLEMENTATION
//------------------------------------------ ↓ toml_node.hpp ---------------------------------------------------------
#pragma region
namespace toml
{
TOML_EXTERNAL_LINKAGE
node::node(node && other) noexcept
: source_{ std::move(other.source_) }
{
other.source_.begin = {};
other.source_.end = {};
}
TOML_EXTERNAL_LINKAGE
node & node::operator= (node && rhs) noexcept
{
source_ = std::move(rhs.source_);
rhs.source_.begin = {};
rhs.source_.end = {};
return *this;
}
TOML_EXTERNAL_LINKAGE bool node::is_string() const noexcept { return false; }
TOML_EXTERNAL_LINKAGE bool node::is_integer() const noexcept { return false; }
TOML_EXTERNAL_LINKAGE bool node::is_floating_point() const noexcept { return false; }
TOML_EXTERNAL_LINKAGE bool node::is_number() const noexcept { return false; }
TOML_EXTERNAL_LINKAGE bool node::is_boolean() const noexcept { return false; }
TOML_EXTERNAL_LINKAGE bool node::is_date() const noexcept { return false; }
TOML_EXTERNAL_LINKAGE bool node::is_time() const noexcept { return false; }
TOML_EXTERNAL_LINKAGE bool node::is_date_time() const noexcept { return false; }
TOML_EXTERNAL_LINKAGE bool node::is_array_of_tables() const noexcept { return false; }
TOML_EXTERNAL_LINKAGE table* node::as_table() noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE array* node::as_array() noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE value<string>* node::as_string() noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE value<int64_t>* node::as_integer() noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE value<double>* node::as_floating_point() noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE value<bool>* node::as_boolean() noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE value<date>* node::as_date() noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE value<time>* node::as_time() noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE value<date_time>* node::as_date_time() noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE const table* node::as_table() const noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE const array* node::as_array() const noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE const value<string>* node::as_string() const noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE const value<int64_t>* node::as_integer() const noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE const value<double>* node::as_floating_point() const noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE const value<bool>* node::as_boolean() const noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE const value<date>* node::as_date() const noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE const value<time>* node::as_time() const noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE const value<date_time>* node::as_date_time() const noexcept { return nullptr; }
TOML_EXTERNAL_LINKAGE const source_region& node::source() const noexcept { return source_; }
}
#pragma endregion
//------------------------------------------ ↑ toml_node.hpp ---------------------------------------------------------
//------------------------------------------------------------------ ↓ toml_array.hpp --------------------------------
#pragma region
namespace toml
{
TOML_EXTERNAL_LINKAGE
void array::preinsertion_resize(size_t idx, size_t count) noexcept
{
const auto new_size = values.size() + count;
const auto inserting_at_end = idx == values.size();
values.resize(new_size);
if (!inserting_at_end)
{
for (size_t r = new_size, e = idx + count, l = e; r-- > e; l--)
values[r] = std::move(values[l]);
}
}
TOML_EXTERNAL_LINKAGE
array::array() noexcept = default;
TOML_EXTERNAL_LINKAGE
array::array(array&& other) noexcept
: node{ std::move(other) },
values{ std::move(other.values) }
{}
TOML_EXTERNAL_LINKAGE
array& array::operator= (array&& rhs) noexcept
{
node::operator=(std::move(rhs));
values = std::move(rhs.values);
return *this;
}
TOML_EXTERNAL_LINKAGE node_type array::type() const noexcept { return node_type::array; }
TOML_EXTERNAL_LINKAGE bool array::is_table() const noexcept { return false; }
TOML_EXTERNAL_LINKAGE bool array::is_array() const noexcept { return true; }
TOML_EXTERNAL_LINKAGE bool array::is_value() const noexcept { return false; }
TOML_EXTERNAL_LINKAGE array* array::as_array() noexcept { return this; }
TOML_EXTERNAL_LINKAGE const array* array::as_array() const noexcept { return this; }
TOML_EXTERNAL_LINKAGE node& array::operator[] (size_t index) noexcept { return *values[index]; }
TOML_EXTERNAL_LINKAGE const node& array::operator[] (size_t index) const noexcept { return *values[index]; }
TOML_EXTERNAL_LINKAGE node& array::front() noexcept { return *values.front(); }
TOML_EXTERNAL_LINKAGE const node& array::front() const noexcept { return *values.front(); }
TOML_EXTERNAL_LINKAGE node& array::back() noexcept { return *values.back(); }
TOML_EXTERNAL_LINKAGE const node& array::back() const noexcept { return *values.back(); }
TOML_EXTERNAL_LINKAGE array::iterator array::begin() noexcept { return { values.begin() }; }
TOML_EXTERNAL_LINKAGE array::const_iterator array::begin() const noexcept { return { values.begin() }; }
TOML_EXTERNAL_LINKAGE array::const_iterator array::cbegin() const noexcept { return { values.cbegin() }; }
TOML_EXTERNAL_LINKAGE array::iterator array::end() noexcept { return { values.end() }; }
TOML_EXTERNAL_LINKAGE array::const_iterator array::end() const noexcept { return { values.end() }; }
TOML_EXTERNAL_LINKAGE array::const_iterator array::cend() const noexcept { return { values.cend() }; }
TOML_EXTERNAL_LINKAGE bool array::empty() const noexcept { return values.empty(); }
TOML_EXTERNAL_LINKAGE size_t array::size() const noexcept { return values.size(); }
TOML_EXTERNAL_LINKAGE void array::reserve(size_t new_capacity) { values.reserve(new_capacity); }
TOML_EXTERNAL_LINKAGE void array::clear() noexcept { values.clear(); }
TOML_EXTERNAL_LINKAGE size_t array::max_size() const noexcept { return values.max_size(); }
TOML_EXTERNAL_LINKAGE size_t array::capacity() const noexcept { return values.capacity(); }
TOML_EXTERNAL_LINKAGE void array::shrink_to_fit() { values.shrink_to_fit(); }
TOML_EXTERNAL_LINKAGE
void array::truncate(size_t new_size)
{
if (new_size < values.size())
values.resize(new_size);
}
TOML_EXTERNAL_LINKAGE
array::iterator array::erase(const_iterator pos) noexcept
{
return { values.erase(pos.raw_) };
}
TOML_EXTERNAL_LINKAGE
array::iterator array::erase(const_iterator first, const_iterator last) noexcept
{
return { values.erase(first.raw_, last.raw_) };
}
TOML_EXTERNAL_LINKAGE
void array::pop_back() noexcept
{
values.pop_back();
}
TOML_EXTERNAL_LINKAGE
node* array::get(size_t index) noexcept
{
return index < values.size() ? values[index].get() : nullptr;
}
TOML_EXTERNAL_LINKAGE
const node* array::get(size_t index) const noexcept
{
return index < values.size() ? values[index].get() : nullptr;
}
TOML_API
TOML_EXTERNAL_LINKAGE
bool operator == (const array& lhs, const array& rhs) noexcept
{
if (&lhs == &rhs)
return true;
if (lhs.values.size() != rhs.values.size())
return false;
for (size_t i = 0, e = lhs.values.size(); i < e; i++)
{
const auto lhs_type = lhs.values[i]->type();
const node& rhs_ = *rhs.values[i];
const auto rhs_type = rhs_.type();
if (lhs_type != rhs_type)
return false;
const bool equal = lhs.values[i]->visit([&](const auto& lhs_) noexcept
{
return lhs_ == *reinterpret_cast<std::remove_reference_t<decltype(lhs_)>*>(&rhs_);
});
if (!equal)
return false;
}
return true;
}
TOML_API
TOML_EXTERNAL_LINKAGE
bool operator != (const array& lhs, const array& rhs) noexcept
{
return !(lhs == rhs);
}
TOML_EXTERNAL_LINKAGE
size_t array::total_leaf_count() const noexcept
{
size_t leaves{};
for (size_t i = 0, e = values.size(); i < e; i++)
{
auto arr = values[i]->as_array();
leaves += arr ? arr->total_leaf_count() : 1_sz;
}
return leaves;
}
TOML_EXTERNAL_LINKAGE
void array::flatten_child(array&& child, size_t& dest_index) noexcept
{
for (size_t i = 0, e = child.size(); i < e; i++)
{
auto type = child.values[i]->type();
if (type == node_type::array)
{
array& arr = *reinterpret_cast<array*>(child.values[i].get());
if (!arr.empty())
flatten_child(std::move(arr), dest_index);
}
else
values[dest_index++] = std::move(child.values[i]);
}
}
TOML_EXTERNAL_LINKAGE
void array::flatten()
{
if (values.empty())
return;
bool requires_flattening = false;
size_t size_after_flattening = values.size();
for (size_t i = values.size(); i --> 0_sz;)
{
auto arr = values[i]->as_array();
if (!arr)
continue;
size_after_flattening--; //discount the array itself
const auto leaf_count = arr->total_leaf_count();
if (leaf_count > 0_sz)
{
requires_flattening = true;
size_after_flattening += leaf_count;
}
else
values.erase(values.cbegin() + static_cast<ptrdiff_t>(i));
}
if (!requires_flattening)
return;
values.reserve(size_after_flattening);
size_t i = 0;
while (i < values.size())
{
auto arr = values[i]->as_array();
if (!arr)
{
i++;
continue;
}
std::unique_ptr<node> arr_storage = std::move(values[i]);
const auto leaf_count = arr->total_leaf_count();
if (leaf_count > 1_sz)
preinsertion_resize(i + 1_sz, leaf_count - 1_sz);
flatten_child(std::move(*arr), i); //increments i
}
}
}
#pragma endregion
//------------------------------------------------------------------ ↑ toml_array.hpp --------------------------------
//------------------------------------------------------------------------------------------- ↓ toml_table.hpp -------
#pragma region
namespace toml
{
TOML_EXTERNAL_LINKAGE
table::table(impl::table_init_pair* pairs, size_t count) noexcept
{
for (size_t i = 0; i < count; i++)
{
values.insert_or_assign(
std::move(pairs[i].key),
std::move(pairs[i].value)
);
}
}
TOML_EXTERNAL_LINKAGE
table::table() noexcept {}
TOML_EXTERNAL_LINKAGE
table::table(table&& other) noexcept
: node{ std::move(other) },
values{ std::move(other.values) },
inline_{ other.inline_ }
{}
TOML_EXTERNAL_LINKAGE
table& table::operator = (table&& rhs) noexcept
{
node::operator=(std::move(rhs));
values = std::move(rhs.values);
inline_ = rhs.inline_;
return *this;
}
TOML_EXTERNAL_LINKAGE node_type table::type() const noexcept { return node_type::table; }
TOML_EXTERNAL_LINKAGE bool table::is_table() const noexcept { return true; }
TOML_EXTERNAL_LINKAGE bool table::is_array() const noexcept { return false; }
TOML_EXTERNAL_LINKAGE bool table::is_value() const noexcept { return false; }
TOML_EXTERNAL_LINKAGE table* table::as_table() noexcept { return this; }
TOML_EXTERNAL_LINKAGE const table* table::as_table() const noexcept { return this; }
TOML_EXTERNAL_LINKAGE bool table::is_inline() const noexcept { return inline_; }
TOML_EXTERNAL_LINKAGE void table::is_inline(bool val) noexcept { inline_ = val; }
TOML_EXTERNAL_LINKAGE
node_view<node> table::operator[] (string_view key) noexcept
{
return { this->get(key) };
}
TOML_EXTERNAL_LINKAGE
node_view<const node> table::operator[] (string_view key) const noexcept
{
return { this->get(key) };
}
TOML_EXTERNAL_LINKAGE table::iterator table::begin() noexcept { return { values.begin() }; }
TOML_EXTERNAL_LINKAGE table::const_iterator table::begin() const noexcept { return { values.begin() }; }
TOML_EXTERNAL_LINKAGE table::const_iterator table::cbegin() const noexcept { return { values.cbegin() }; }
TOML_EXTERNAL_LINKAGE table::iterator table::end() noexcept { return { values.end() }; }
TOML_EXTERNAL_LINKAGE table::const_iterator table::end() const noexcept { return { values.end() }; }
TOML_EXTERNAL_LINKAGE table::const_iterator table::cend() const noexcept { return { values.cend() }; }
TOML_EXTERNAL_LINKAGE bool table::empty() const noexcept { return values.empty(); }
TOML_EXTERNAL_LINKAGE size_t table::size() const noexcept { return values.size(); }
TOML_EXTERNAL_LINKAGE void table::clear() noexcept { values.clear(); }
TOML_EXTERNAL_LINKAGE
table::iterator table::erase(iterator pos) noexcept
{
return { values.erase(pos.raw_) };
}
TOML_EXTERNAL_LINKAGE
table::iterator table::erase(const_iterator pos) noexcept
{
return { values.erase(pos.raw_) };
}
TOML_EXTERNAL_LINKAGE
table::iterator table::erase(const_iterator first, const_iterator last) noexcept
{
return { values.erase(first.raw_, last.raw_) };
}
TOML_EXTERNAL_LINKAGE
bool table::erase(string_view key) noexcept
{
if (auto it = values.find(key); it != values.end())
{
values.erase(it);
return true;
}
return false;
}
TOML_EXTERNAL_LINKAGE
node* table::get(string_view key) noexcept
{
return do_get(values, key);
}
TOML_EXTERNAL_LINKAGE
const node* table::get(string_view key) const noexcept
{
return do_get(values, key);
}
TOML_EXTERNAL_LINKAGE
table::iterator table::find(string_view key) noexcept
{
return { values.find(key) };
}
TOML_EXTERNAL_LINKAGE
table::const_iterator table::find(string_view key) const noexcept
{
return { values.find(key) };
}
TOML_EXTERNAL_LINKAGE
bool table::contains(string_view key) const noexcept
{
return do_contains(values, key);
}
TOML_API
TOML_EXTERNAL_LINKAGE
bool operator == (const table& lhs, const table& rhs) noexcept
{
if (&lhs == &rhs)
return true;
if (lhs.values.size() != rhs.values.size())
return false;
for (auto l = lhs.values.begin(), r = rhs.values.begin(), e = lhs.values.end(); l != e; l++, r++)
{
if (l->first != r->first)
return false;
const auto lhs_type = l->second->type();
const node& rhs_ = *r->second;
const auto rhs_type = rhs_.type();
if (lhs_type != rhs_type)
return false;
const bool equal = l->second->visit([&](const auto& lhs_) noexcept
{
return lhs_ == *reinterpret_cast<std::remove_reference_t<decltype(lhs_)>*>(&rhs_);
});
if (!equal)
return false;
}
return true;
}
TOML_API
TOML_EXTERNAL_LINKAGE
bool operator != (const table& lhs, const table& rhs) noexcept
{
return !(lhs == rhs);
}
}
#pragma endregion
//------------------------------------------------------------------------------------------- ↑ toml_table.hpp -------
//---------- ↓ toml_default_formatter.hpp ----------------------------------------------------------------------------
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_SWITCH_WARNINGS
TOML_DISABLE_FLOAT_WARNINGS
namespace toml::impl
{
inline constexpr size_t default_formatter_line_wrap = 120_sz;
TOML_PUSH_WARNINGS
TOML_DISABLE_ALL_WARNINGS
TOML_API
TOML_EXTERNAL_LINKAGE
toml::string default_formatter_make_key_segment(const toml::string& str) noexcept
{
if (str.empty())
return TOML_STRING_PREFIX("''"s);
else
{
bool requiresQuotes = false;
{
impl::utf8_decoder decoder;
for (size_t i = 0; i < str.length() && !requiresQuotes; i++)
{
decoder(static_cast<uint8_t>(str[i]));
if (decoder.error())
requiresQuotes = true;
else if (decoder.has_code_point())
requiresQuotes = !impl::is_bare_key_character(decoder.codepoint);
}
}
if (requiresQuotes)
{
toml::string s;
s.reserve(str.length() + 2_sz);
s += TOML_STRING_PREFIX('"');
for (auto c : str)
{
if TOML_UNLIKELY(c >= TOML_STRING_PREFIX('\x00') && c <= TOML_STRING_PREFIX('\x1F'))
s.append(low_character_escape_table[c]);
else if TOML_UNLIKELY(c == TOML_STRING_PREFIX('\x7F'))
s.append(TOML_STRING_PREFIX("\\u007F"sv));
else if TOML_UNLIKELY(c == TOML_STRING_PREFIX('"'))
s.append(TOML_STRING_PREFIX("\\\""sv));
else
s += c;
}
s += TOML_STRING_PREFIX('"');
return s;
}
else
return str;
}
}
TOML_POP_WARNINGS
TOML_API
TOML_EXTERNAL_LINKAGE
size_t default_formatter_inline_columns(const node& node) noexcept
{
switch (node.type())
{
case node_type::table:
{
auto& n = *reinterpret_cast<const table*>(&node);
if (n.empty())
return 2_sz; // "{}"
size_t weight = 3_sz; // "{ }"
for (auto&& [k, v] : n)
{
weight += k.length() + default_formatter_inline_columns(v) + 2_sz; // + ", "
if (weight >= default_formatter_line_wrap)
break;
}
return weight;
}
case node_type::array:
{
auto& n = *reinterpret_cast<const array*>(&node);
if (n.empty())
return 2_sz; // "[]"
size_t weight = 3_sz; // "[ ]"
for (auto& elem : n)
{
weight += default_formatter_inline_columns(elem) + 2_sz; // + ", "
if (weight >= default_formatter_line_wrap)
break;
}
return weight;
}
case node_type::string:
{
auto& n = *reinterpret_cast<const value<string>*>(&node);
return n.get().length() + 2_sz; // + ""
}
case node_type::integer:
{
auto& n = *reinterpret_cast<const value<int64_t>*>(&node);
auto v = n.get();
if (!v)
return 1_sz;
size_t weight = {};
if (v < 0)
{
weight += 1;
v *= -1;
}
return weight + static_cast<size_t>(log10(static_cast<double>(v))) + 1_sz;
}
case node_type::floating_point:
{
auto& n = *reinterpret_cast<const value<double>*>(&node);
auto v = n.get();
if (v == 0.0)
return 3_sz; // "0.0"
size_t weight = 2_sz; // ".0"
if (v < 0.0)
{
weight += 1;
v *= -1.0;
}
return weight + static_cast<size_t>(log10(static_cast<double>(v))) + 1_sz;
break;
}
case node_type::boolean: return 5_sz;
case node_type::date: [[fallthrough]];
case node_type::time: return 10_sz;
case node_type::date_time: return 30_sz;
case node_type::none: TOML_UNREACHABLE;
TOML_NO_DEFAULT_CASE;
}
TOML_UNREACHABLE;
}
TOML_API
TOML_EXTERNAL_LINKAGE
bool default_formatter_forces_multiline(const node& node, size_t starting_column_bias) noexcept
{
return (default_formatter_inline_columns(node) + starting_column_bias) > default_formatter_line_wrap;
}
}
namespace toml
{
template <typename Char>
TOML_EXTERNAL_LINKAGE
void default_formatter<Char>::print_inline(const toml::table& tbl)
{
if (tbl.empty())
impl::print_to_stream("{}"sv, base::stream());
else
{
impl::print_to_stream("{ "sv, base::stream());
bool first = false;
for (auto&& [k, v] : tbl)
{
if (first)
impl::print_to_stream(", "sv, base::stream());
first = true;
print_key_segment(k);
impl::print_to_stream(" = "sv, base::stream());
const auto type = v.type();
TOML_ASSUME(type != node_type::none);
switch (type)
{
case node_type::table: print_inline(*reinterpret_cast<const table*>(&v)); break;
case node_type::array: print(*reinterpret_cast<const array*>(&v)); break;
default:
base::print_value(v, type);
}
}
impl::print_to_stream(" }"sv, base::stream());
}
base::clear_naked_newline();
}
}
TOML_POP_WARNINGS // TOML_DISABLE_SWITCH_WARNINGS, TOML_DISABLE_FLOAT_WARNINGS
#pragma endregion
//---------- ↑ toml_default_formatter.hpp ----------------------------------------------------------------------------
//------------------------------------- ↓ toml_json_formatter.hpp ----------------------------------------------------
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_SWITCH_WARNINGS
namespace toml
{
template <typename Char>
TOML_EXTERNAL_LINKAGE
void json_formatter<Char>::print(const toml::table& tbl)
{
if (tbl.empty())
impl::print_to_stream("{}"sv, base::stream());
else
{
impl::print_to_stream('{', base::stream());
base::increase_indent();
bool first = false;
for (auto&& [k, v] : tbl)
{
if (first)
impl::print_to_stream(", "sv, base::stream());
first = true;
base::print_newline(true);
base::print_indent();
base::print_quoted_string(k);
impl::print_to_stream(" : "sv, base::stream());
const auto type = v.type();
TOML_ASSUME(type != node_type::none);
switch (type)
{
case node_type::table: print(*reinterpret_cast<const table*>(&v)); break;
case node_type::array: print(*reinterpret_cast<const array*>(&v)); break;
default:
base::print_value(v, type);
}
}
base::decrease_indent();
base::print_newline(true);
base::print_indent();
impl::print_to_stream('}', base::stream());
}
base::clear_naked_newline();
}
}
TOML_POP_WARNINGS // TOML_DISABLE_SWITCH_WARNINGS
#pragma endregion
//------------------------------------- ↑ toml_json_formatter.hpp ----------------------------------------------------
#if TOML_PARSER
//------------------------------------------------------------------ ↓ toml_parser.hpp -------------------------------
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_ALL_WARNINGS
#include <cmath>
#if TOML_INT_CHARCONV || TOML_FLOAT_CHARCONV
#include <charconv>
#endif
#if !TOML_INT_CHARCONV || !TOML_FLOAT_CHARCONV
#include <sstream>
#endif
#if !TOML_ALL_INLINE
using namespace std::string_view_literals;
#endif
TOML_POP_WARNINGS
TOML_PUSH_WARNINGS
TOML_DISABLE_SWITCH_WARNINGS
TOML_DISABLE_PADDING_WARNINGS
namespace TOML_INTERNAL_NAMESPACE
{
template <uint64_t> struct parse_integer_traits;
template <> struct parse_integer_traits<2> final
{
static constexpr auto scope_qualifier = "binary integer"sv;
static constexpr auto is_digit = ::toml::impl::is_binary_digit;
static constexpr auto is_signed = false;
static constexpr auto buffer_length = 63;
static constexpr char32_t prefix_codepoint = U'b';
static constexpr char prefix = 'b';
};
template <> struct parse_integer_traits<8> final
{
static constexpr auto scope_qualifier = "octal integer"sv;
static constexpr auto is_digit = ::toml::impl::is_octal_digit;
static constexpr auto is_signed = false;
static constexpr auto buffer_length = 21; // strlen("777777777777777777777")
static constexpr char32_t prefix_codepoint = U'o';
static constexpr char prefix = 'o';
};
template <> struct parse_integer_traits<10> final
{
static constexpr auto scope_qualifier = "decimal integer"sv;
static constexpr auto is_digit = ::toml::impl::is_decimal_digit;
static constexpr auto is_signed = true;
static constexpr auto buffer_length = 19; //strlen("9223372036854775807")
};
template <> struct parse_integer_traits<16> final
{
static constexpr auto scope_qualifier = "hexadecimal integer"sv;
static constexpr auto is_digit = ::toml::impl::is_hexadecimal_digit;
static constexpr auto is_signed = false;
static constexpr auto buffer_length = 16; //strlen("7FFFFFFFFFFFFFFF")
static constexpr char32_t prefix_codepoint = U'x';
static constexpr char prefix = 'x';
};
template <typename T>
TOML_GNU_ATTR(nonnull)
TOML_INTERNAL_LINKAGE
void concatenate(char*& write_pos, char* buf_end, const T& arg) noexcept
{
using namespace ::toml;
using namespace ::toml::impl;
static_assert(!is_one_of<std::decay_t<T>, const char*, char*>);
if (write_pos >= buf_end)
return;
const auto max_chars = static_cast<size_t>(buf_end - write_pos);
using arg_t = remove_cvref_t<T>;
if constexpr (std::is_same_v<arg_t, std::string_view> || std::is_same_v<arg_t, std::string>)
{
const auto len = max_chars < arg.length() ? max_chars : arg.length();
std::memcpy(write_pos, arg.data(), len);
write_pos += len;
}
else if constexpr (std::is_same_v<arg_t, char>)
{
*write_pos++ = arg;
}
else if constexpr (std::is_same_v<arg_t, utf8_codepoint>)
{
string_view cp_view;
if TOML_UNLIKELY(arg.value <= U'\x1F')
cp_view = low_character_escape_table[arg.value];
else if TOML_UNLIKELY(arg.value == U'\x7F')
cp_view = TOML_STRING_PREFIX("\\u007F"sv);
else
cp_view = arg.template as_view<string_char>();
if (cp_view.length() <= max_chars)
concatenate(write_pos, buf_end, cp_view);
}
else if constexpr (std::is_same_v<arg_t, bool>)
{
concatenate(write_pos, buf_end, arg ? "true"sv : "false"sv);
}
else if constexpr (std::is_same_v<arg_t, node_type>)
{
concatenate(
write_pos,
buf_end,
impl::node_type_friendly_names[static_cast<std::underlying_type_t<node_type>>(arg)]
);
}
else if constexpr (std::is_floating_point_v<arg_t>)
{
#if TOML_FLOAT_CHARCONV
{
const auto result = std::to_chars(write_pos, buf_end, arg);
write_pos = result.ptr;
}
#else
{
std::ostringstream ss;
ss.imbue(std::locale::classic());
ss.precision(std::numeric_limits<arg_t>::digits10 + 1);
ss << arg;
concatenate(write_pos, buf_end, std::move(ss).str());
}
#endif
}
else if constexpr (std::is_integral_v<arg_t>)
{
#if TOML_INT_CHARCONV
{
const auto result = std::to_chars(write_pos, buf_end, arg);
write_pos = result.ptr;
}
#else
{
std::ostringstream ss;
ss.imbue(std::locale::classic());
using cast_type = std::conditional_t<std::is_signed_v<arg_t>, int64_t, uint64_t>;
ss << static_cast<cast_type>(arg);
concatenate(write_pos, buf_end, std::move(ss).str());
}
#endif
}
}
struct parse_scope final
{
std::string_view& storage_;
std::string_view parent_;
TOML_NODISCARD_CTOR
explicit parse_scope(std::string_view& current_scope, std::string_view new_scope) noexcept
: storage_{ current_scope },
parent_{ current_scope }
{
storage_ = new_scope;
}
~parse_scope() noexcept
{
storage_ = parent_;
}
};
#define push_parse_scope_2(scope, line) parse_scope ps_##line{ current_scope, scope }
#define push_parse_scope_1(scope, line) push_parse_scope_2(scope, line)
#define push_parse_scope(scope) push_parse_scope_1(scope, __LINE__)
struct parsed_key final
{
std::vector<toml::string> segments;
};
struct parsed_key_value_pair final
{
parsed_key key;
std::unique_ptr<toml::node> value;
};
}
namespace toml::impl
{
#if TOML_EXCEPTIONS && !defined(__INTELLISENSE__)
#define TOML_RETURNS_BY_THROWING [[noreturn]]
#else
#define TOML_RETURNS_BY_THROWING
#endif
#ifdef NDEBUG
#define assert_or_assume(cond) TOML_ASSUME(cond)
#else
#define assert_or_assume(cond) TOML_ASSERT(cond)
#endif
// Q: "what the fuck is this? MACROS????"
// A: The parser needs to work in exceptionless mode (returning error objects directly)
// and exception mode (reporting parse failures by throwing). Two totally different control flows.
// These macros encapsulate the differences between the two modes so I can write code code
// as though I was only targeting one mode and not want yeet myself into the sun.
// They're all #undef'd at the bottom of the parser's implementation so they should be harmless outside
// of toml++.
#define is_eof() !cp
#define assert_not_eof() assert_or_assume(cp)
#define return_if_eof(...) do { if (is_eof()) return __VA_ARGS__; } while(false)
#if TOML_EXCEPTIONS
#define is_error() false
#define return_after_error(...) TOML_UNREACHABLE
#define assert_not_error() (void)0
#define return_if_error(...) (void)0
#define return_if_error_or_eof(...) return_if_eof(__VA_ARGS__)
#else
#define is_error() !!err
#define return_after_error(...) return __VA_ARGS__
#define assert_not_error() TOML_ASSERT(!is_error())
#define return_if_error(...) do { if (is_error()) return __VA_ARGS__; } while(false)
#define return_if_error_or_eof(...) do { if (is_eof() || is_error()) return __VA_ARGS__; } while(false)
#endif
#define set_error_and_return(ret, ...) \
do { if (!is_error()) set_error(__VA_ARGS__); return_after_error(ret); } while(false)
#define set_error_and_return_default(...) set_error_and_return({}, __VA_ARGS__)
#define set_error_and_return_if_eof(...) \
do { if (is_eof()) set_error_and_return(__VA_ARGS__, "encountered end-of-file"sv); } while(false)
#define advance_and_return_if_error(...) \
do { assert_not_eof(); advance(); return_if_error(__VA_ARGS__); } while (false)
#define advance_and_return_if_error_or_eof(...) \
do { \
assert_not_eof(); \
advance(); \
return_if_error(__VA_ARGS__); \
set_error_and_return_if_eof(__VA_ARGS__); \
} while (false)
#if TOML_EXCEPTIONS
TOML_ABI_NAMESPACE_START(impl_ex)
#else
TOML_ABI_NAMESPACE_START(impl_noex)
#endif
class parser final
{
private:
utf8_buffered_reader reader;
table root;
source_position prev_pos = { 1, 1 };
const utf8_codepoint* cp = {};
std::vector<table*> implicit_tables;
std::vector<table*> dotted_key_tables;
std::vector<array*> table_arrays;
std::string recording_buffer; //for diagnostics
bool recording = false, recording_whitespace = true;
std::string_view current_scope;
#if !TOML_EXCEPTIONS
mutable optional<toml::parse_error> err;
#endif
[[nodiscard]]
source_position current_position(source_index fallback_offset = 0) const noexcept
{
if (!is_eof())
return cp->position;
return { prev_pos.line, static_cast<source_index>(prev_pos.column + fallback_offset) };
}
template <typename... T>
TOML_RETURNS_BY_THROWING
void set_error_at(source_position pos, const T&... reason) const TOML_MAY_THROW
{
static_assert(sizeof...(T) > 0_sz);
#if !TOML_EXCEPTIONS
if (err)
return;
#endif
static constexpr auto buf_size = 512_sz;
char buf[buf_size];
auto write_pos = buf;
const auto max_write_pos = buf + (buf_size - 1_sz); //allow for null terminator
concatenate(write_pos, max_write_pos, "Error while parsing "sv);
concatenate(write_pos, max_write_pos, current_scope);
concatenate(write_pos, max_write_pos, ": "sv);
(concatenate(write_pos, max_write_pos, reason), ...);
*write_pos = '\0';
#if TOML_EXCEPTIONS
throw parse_error{ buf, pos, reader.source_path() };
#else
err.emplace(
std::string(buf, static_cast<size_t>(write_pos - buf)),
pos,
reader.source_path()
);
#endif
}
template <typename... T>
TOML_RETURNS_BY_THROWING
TOML_ALWAYS_INLINE
void set_error(const T&... reason) const TOML_MAY_THROW
{
set_error_at(current_position(1), reason...);
}
void go_back(size_t count = 1_sz) noexcept
{
return_if_error();
assert_or_assume(count);
cp = reader.step_back(count);
prev_pos = cp->position;
}
void advance() TOML_MAY_THROW
{
return_if_error();
assert_not_eof();
prev_pos = cp->position;
cp = reader.read_next();
#if !TOML_EXCEPTIONS
if (reader.error())
{
err = std::move(reader.error());
return;
}
#endif
if (recording && !is_eof())
{
if (recording_whitespace || !(is_whitespace(*cp) || is_line_break(*cp)))
recording_buffer.append(cp->as_view<char>());
}
}
void start_recording(bool include_current = true) noexcept
{
return_if_error();
recording = true;
recording_whitespace = true;
recording_buffer.clear();
if (include_current && !is_eof())
recording_buffer.append(cp->as_view<char>());
}
void stop_recording(size_t pop_bytes = 0_sz) noexcept
{
return_if_error();
recording = false;
if (pop_bytes)
{
if (pop_bytes >= recording_buffer.length())
recording_buffer.clear();
else if (pop_bytes == 1_sz)
recording_buffer.pop_back();
else
recording_buffer.erase(
recording_buffer.begin() + static_cast<ptrdiff_t>(recording_buffer.length() - pop_bytes),
recording_buffer.end()
);
}
}
bool consume_leading_whitespace() TOML_MAY_THROW
{
return_if_error_or_eof({});
bool consumed = false;
while (!is_eof() && is_whitespace(*cp))
{
consumed = true;
advance_and_return_if_error({});
}
return consumed;
}
bool consume_line_break() TOML_MAY_THROW
{
return_if_error_or_eof({});
if (!is_line_break(*cp))
return false;
if (*cp == U'\r')
{
advance_and_return_if_error({}); // skip \r
if (is_eof())
return true; //eof after \r is 'fine'
else if (*cp != U'\n')
set_error_and_return_default("expected \\n, saw '"sv, *cp, "'"sv);
}
advance_and_return_if_error({}); // skip \n (or other single-character line ending)
return true;
}
bool consume_rest_of_line() TOML_MAY_THROW
{
return_if_error_or_eof({});
do
{
if (is_line_break(*cp))
return consume_line_break();
else
advance();
return_if_error({});
}
while (!is_eof());
return true;
}
bool consume_comment() TOML_MAY_THROW
{
return_if_error_or_eof({});
if (*cp != U'#')
return false;
push_parse_scope("comment"sv);
advance_and_return_if_error({}); //skip the '#'
while (!is_eof())
{
if (consume_line_break())
return true;
if constexpr (TOML_LANG_AT_LEAST(1, 0, 0))
{
// toml/issues/567 (disallow non-TAB control characters in comments)
if (is_nontab_control_character(*cp))
set_error_and_return_default(
"control characters other than TAB (U+0009) are explicitly prohibited"sv
);
// toml/pull/720 (disallow surrogates in comments)
else if (is_unicode_surrogate(*cp))
set_error_and_return_default(
"unicode surrogates (U+D800 to U+DFFF) are explicitly prohibited"sv
);
}
advance_and_return_if_error({});
}
return true;
}
[[nodiscard]]
bool consume_expected_sequence(std::u32string_view seq) TOML_MAY_THROW
{
return_if_error({});
TOML_ASSERT(!seq.empty());
for (auto c : seq)
{
set_error_and_return_if_eof({});
if (*cp != c)
return false;
advance_and_return_if_error({});
}
return true;
}
template <typename T>
[[nodiscard]]
bool consume_digit_sequence(T* digits, size_t len) TOML_MAY_THROW
{
return_if_error({});
assert_or_assume(digits);
assert_or_assume(len);
for (size_t i = 0; i < len; i++)
{
set_error_and_return_if_eof({});
if (!is_decimal_digit(*cp))
return false;
digits[i] = static_cast<T>(*cp - U'0');
advance_and_return_if_error({});
}
return true;
}
template <typename T>
[[nodiscard]]
size_t consume_variable_length_digit_sequence(T* buffer, size_t max_len) TOML_MAY_THROW
{
return_if_error({});
assert_or_assume(buffer);
assert_or_assume(max_len);
size_t i = {};
for (; i < max_len; i++)
{
if (is_eof() || !is_decimal_digit(*cp))
break;
buffer[i] = static_cast<T>(*cp - U'0');
advance_and_return_if_error({});
}
return i;
}
template <bool MultiLine>
[[nodiscard]]
string parse_basic_string() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(*cp == U'"');
push_parse_scope("string"sv);
// skip the '"'
advance_and_return_if_error_or_eof({});
// multiline strings ignore a single line ending right at the beginning
if constexpr (MultiLine)
{
consume_line_break();
return_if_error({});
set_error_and_return_if_eof({});
}
string str;
bool escaped = false;
[[maybe_unused]] bool skipping_whitespace = false;
do
{
if (escaped)
{
escaped = false;
// handle 'line ending slashes' in multi-line mode
if constexpr (MultiLine)
{
if (is_line_break(*cp))
{
consume_line_break();
skipping_whitespace = true;
return_if_error({});
continue;
}
}
bool skipped_escaped_codepoint = false;
assert_not_eof();
switch (const auto escaped_codepoint = *cp)
{
// 'regular' escape codes
case U'b': str += TOML_STRING_PREFIX('\b'); break;
case U'f': str += TOML_STRING_PREFIX('\f'); break;
case U'n': str += TOML_STRING_PREFIX('\n'); break;
case U'r': str += TOML_STRING_PREFIX('\r'); break;
case U't': str += TOML_STRING_PREFIX('\t'); break;
case U'"': str += TOML_STRING_PREFIX('"'); break;
case U'\\': str += TOML_STRING_PREFIX('\\'); break;
// unicode scalar sequences
case U'x':
if constexpr (!TOML_LANG_UNRELEASED) // toml/pull/709 (\xHH unicode scalar sequences)
{
set_error_and_return_default(
"escape sequence '\\x' is not supported in TOML 1.0.0 and earlier"sv
);
}
[[fallthrough]];
case U'u': [[fallthrough]];
case U'U':
{
push_parse_scope("unicode scalar escape sequence"sv);
advance_and_return_if_error_or_eof({});
skipped_escaped_codepoint = true;
uint32_t place_value = escaped_codepoint == U'U'
? 0x10000000u
: (escaped_codepoint == U'u' ? 0x1000u : 0x10u);
uint32_t sequence_value{};
while (place_value)
{
set_error_and_return_if_eof({});
if (!is_hexadecimal_digit(*cp))
set_error_and_return_default("expected hex digit, saw '"sv, *cp, "'"sv);
sequence_value += place_value * hex_to_dec(*cp);
place_value /= 16u;
advance_and_return_if_error({});
}
if (is_unicode_surrogate(sequence_value))
set_error_and_return_default(
"unicode surrogates (U+D800 - U+DFFF) are explicitly prohibited"sv
);
else if (sequence_value > 0x10FFFFu)
set_error_and_return_default("values greater than U+10FFFF are invalid"sv);
else if (sequence_value <= 0x7Fu) //ascii
str += static_cast<string_char>(sequence_value & 0x7Fu);
else if (sequence_value <= 0x7FFu)
{
str += static_cast<string_char>(0xC0u | ((sequence_value >> 6) & 0x1Fu));
str += static_cast<string_char>(0x80u | (sequence_value & 0x3Fu));
}
else if (sequence_value <= 0xFFFFu)
{
str += static_cast<string_char>(0xE0u | ((sequence_value >> 12) & 0x0Fu));
str += static_cast<string_char>(0x80u | ((sequence_value >> 6) & 0x1Fu));
str += static_cast<string_char>(0x80u | (sequence_value & 0x3Fu));
}
else
{
str += static_cast<string_char>(0xF0u | ((sequence_value >> 18) & 0x07u));
str += static_cast<string_char>(0x80u | ((sequence_value >> 12) & 0x3Fu));
str += static_cast<string_char>(0x80u | ((sequence_value >> 6) & 0x3Fu));
str += static_cast<string_char>(0x80u | (sequence_value & 0x3Fu));
}
break;
}
// ???
default:
set_error_and_return_default("unknown escape sequence '\\"sv, *cp, "'"sv);
}
// skip the escaped character
if (!skipped_escaped_codepoint)
advance_and_return_if_error_or_eof({});
}
else
{
// handle closing delimiters
if (*cp == U'"')
{
if constexpr (MultiLine)
{
size_t lookaheads = {};
size_t consecutive_delimiters = 1_sz;
do
{
advance_and_return_if_error({});
lookaheads++;
if (!is_eof() && *cp == U'"')
consecutive_delimiters++;
else
break;
}
while (lookaheads < 4_sz);
switch (consecutive_delimiters)
{
// """ " (one quote somewhere in a ML string)
case 1_sz:
str += TOML_STRING_PREFIX('"');
skipping_whitespace = false;
continue;
// """ "" (two quotes somewhere in a ML string)
case 2_sz:
str.append(TOML_STRING_PREFIX("\"\""sv));
skipping_whitespace = false;
continue;
// """ """ (the end of the string)
case 3_sz:
return str;
// """ """" (one at the end of the string)
case 4_sz:
str += TOML_STRING_PREFIX('"');
return str;
// """ """"" (two quotes at the end of the string)
case 5_sz:
str.append(TOML_STRING_PREFIX("\"\""sv));
advance_and_return_if_error({}); // skip the last '"'
return str;
TOML_NO_DEFAULT_CASE;
}
}
else
{
advance_and_return_if_error({}); // skip the closing delimiter
return str;
}
}
// handle escapes
else if (*cp == U'\\')
{
advance_and_return_if_error_or_eof({}); // skip the '\'
skipping_whitespace = false;
escaped = true;
continue;
}
// handle line endings in multi-line mode
if constexpr (MultiLine)
{
if (is_line_break(*cp))
{
consume_line_break();
return_if_error({});
if (!skipping_whitespace)
str += TOML_STRING_PREFIX('\n');
continue;
}
}
// handle control characters
if (is_nontab_control_character(*cp))
set_error_and_return_default(
"unescaped control characters other than TAB (U+0009) are explicitly prohibited"sv
);
// handle surrogates in strings (1.0.0 and later)
if constexpr (TOML_LANG_AT_LEAST(1, 0, 0))
{
if (is_unicode_surrogate(*cp))
set_error_and_return_default(
"unescaped unicode surrogates (U+D800 to U+DFFF) are explicitly prohibited"sv
);
}
if constexpr (MultiLine)
{
if (!skipping_whitespace || !is_whitespace(*cp))
{
skipping_whitespace = false;
str.append(cp->as_view());
}
}
else
str.append(cp->as_view());
advance_and_return_if_error({});
}
}
while (!is_eof());
set_error_and_return_default("encountered end-of-file"sv);
}
template <bool MultiLine>
[[nodiscard]]
string parse_literal_string() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(*cp == U'\'');
push_parse_scope("literal string"sv);
// skip the delimiter
advance_and_return_if_error_or_eof({});
// multiline strings ignore a single line ending right at the beginning
if constexpr (MultiLine)
{
consume_line_break();
return_if_error({});
set_error_and_return_if_eof({});
}
string str;
do
{
assert_not_error();
// handle closing delimiters
if (*cp == U'\'')
{
if constexpr (MultiLine)
{
size_t lookaheads = {};
size_t consecutive_delimiters = 1_sz;
do
{
advance_and_return_if_error({});
lookaheads++;
if (!is_eof() && *cp == U'\'')
consecutive_delimiters++;
else
break;
}
while (lookaheads < 4_sz);
switch (consecutive_delimiters)
{
// ''' ' (one quote somewhere in a ML string)
case 1_sz:
str += TOML_STRING_PREFIX('\'');
continue;
// ''' '' (two quotes somewhere in a ML string)
case 2_sz:
str.append(TOML_STRING_PREFIX("''"sv));
continue;
// ''' ''' (the end of the string)
case 3_sz:
return str;
// ''' '''' (one at the end of the string)
case 4_sz:
str += TOML_STRING_PREFIX('\'');
return str;
// ''' ''''' (two quotes at the end of the string)
case 5_sz:
str.append(TOML_STRING_PREFIX("''"sv));
advance_and_return_if_error({}); // skip the last '
return str;
TOML_NO_DEFAULT_CASE;
}
}
else
{
advance_and_return_if_error({}); // skip the closing delimiter
return str;
}
}
// handle line endings in multi-line mode
if constexpr (MultiLine)
{
if (is_line_break(*cp))
{
consume_line_break();
str += TOML_STRING_PREFIX('\n');
continue;
}
}
// handle control characters
if (is_nontab_control_character(*cp))
set_error_and_return_default(
"control characters other than TAB (U+0009) are explicitly prohibited"sv
);
// handle surrogates in strings (1.0.0 and later)
if constexpr (TOML_LANG_AT_LEAST(1, 0, 0))
{
if (is_unicode_surrogate(*cp))
set_error_and_return_default(
"unicode surrogates (U+D800 - U+DFFF) are explicitly prohibited"sv
);
}
str.append(cp->as_view());
advance_and_return_if_error({});
}
while (!is_eof());
set_error_and_return_default("encountered end-of-file"sv);
}
struct parsed_string final
{
string value;
bool was_multi_line;
};
[[nodiscard]]
parsed_string parse_string() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(is_string_delimiter(*cp));
push_parse_scope("string"sv);
// get the first three characters to determine the string type
const auto first = cp->value;
advance_and_return_if_error_or_eof({});
const auto second = cp->value;
advance_and_return_if_error({});
const auto third = cp ? cp->value : U'\0';
// if we were eof at the third character then first and second need to be
// the same string character (otherwise it's an unterminated string)
if (is_eof())
{
if (second == first)
return {};
set_error_and_return_default("encountered end-of-file"sv);
}
// if the first three characters are all the same string delimiter then
// it's a multi-line string.
else if (first == second && first == third)
{
return
{
first == U'\''
? parse_literal_string<true>()
: parse_basic_string<true>(),
true
};
}
// otherwise it's just a regular string.
else
{
// step back two characters so that the current
// character is the string delimiter
go_back(2_sz);
return
{
first == U'\''
? parse_literal_string<false>()
: parse_basic_string<false>(),
false
};
}
}
[[nodiscard]]
string parse_bare_key_segment() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(is_bare_key_character(*cp));
string segment;
while (!is_eof())
{
if (!is_bare_key_character(*cp))
break;
segment.append(cp->as_view());
advance_and_return_if_error({});
}
return segment;
}
[[nodiscard]]
bool parse_boolean() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(is_match(*cp, U't', U'f', U'T', U'F'));
push_parse_scope("boolean"sv);
start_recording(true);
auto result = is_match(*cp, U't', U'T');
if (!consume_expected_sequence(result ? U"true"sv : U"false"sv))
set_error_and_return_default(
"expected '"sv, result ? "true"sv : "false"sv, "', saw '"sv, recording_buffer, '\''
);
stop_recording();
if (cp && !is_value_terminator(*cp))
set_error_and_return_default("expected value-terminator, saw '"sv, *cp, '\'');
return result;
}
[[nodiscard]]
double parse_inf_or_nan() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(is_match(*cp, U'i', U'n', U'I', U'N', U'+', U'-'));
push_parse_scope("floating-point"sv);
start_recording(true);
const int sign = *cp == U'-' ? -1 : 1;
if (is_match(*cp, U'+', U'-'))
advance_and_return_if_error_or_eof({});
const bool inf = is_match(*cp, U'i', U'I');
if (!consume_expected_sequence(inf ? U"inf"sv : U"nan"sv))
set_error_and_return_default(
"expected '"sv, inf ? "inf"sv : "nan"sv, "', saw '"sv, recording_buffer, '\''
);
stop_recording();
if (cp && !is_value_terminator(*cp))
set_error_and_return_default("expected value-terminator, saw '"sv, *cp, '\'');
return inf
? sign * std::numeric_limits<double>::infinity()
: std::numeric_limits<double>::quiet_NaN();
}
TOML_PUSH_WARNINGS
TOML_DISABLE_SWITCH_WARNINGS
TOML_DISABLE_INIT_WARNINGS
[[nodiscard]]
double parse_float() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(is_match(*cp, U'+', U'-', U'.') || is_decimal_digit(*cp));
push_parse_scope("floating-point"sv);
// sign
const int sign = *cp == U'-' ? -1 : 1;
if (is_match(*cp, U'+', U'-'))
advance_and_return_if_error_or_eof({});
// consume value chars
char chars[64];
size_t length = {};
const utf8_codepoint* prev = {};
bool seen_decimal = false, seen_exponent = false;
while (!is_eof() && !is_value_terminator(*cp))
{
if (*cp == U'_')
{
if (!prev || !is_decimal_digit(*prev))
set_error_and_return_default("underscores may only follow digits."sv);
prev = cp;
advance_and_return_if_error_or_eof({});
continue;
}
else if (prev && *prev == U'_' && !is_decimal_digit(*cp))
set_error_and_return_default("underscores must be followed by digits."sv);
else if (*cp == U'.')
{
// 1.0e+.10 (exponent cannot have '.')
if (seen_exponent)
set_error_and_return_default("expected exponent decimal digit or sign, saw '.'"sv);
// 1.0.e+.10
// 1..0
// (multiple '.')
else if (seen_decimal)
set_error_and_return_default("expected decimal digit or exponent, saw , saw '.'"sv);
seen_decimal = true;
}
else if (is_match(*cp, U'e', U'E'))
{
// 1.0ee+10 (multiple 'e')
if (seen_exponent)
set_error_and_return_default("expected decimal digit, saw '"sv, *cp, '\'');
seen_decimal = true; // implied
seen_exponent = true;
}
else if (is_match(*cp, U'+', U'-'))
{
// 1.-0 (sign in mantissa)
if (!seen_exponent)
set_error_and_return_default("expected decimal digit or '.', saw '"sv, * cp, '\'');
// 1.0e1-0 (misplaced exponent sign)
else if (!is_match(*prev, U'e', U'E'))
set_error_and_return_default("expected exponent digit, saw '"sv, *cp, '\'');
}
else if (!is_decimal_digit(*cp))
set_error_and_return_default("expected decimal digit, saw '"sv, *cp, '\'');
else if (length == sizeof(chars))
set_error_and_return_default("exceeds maximum length of "sv, sizeof(chars), " characters."sv);
chars[length++] = static_cast<char>(cp->bytes[0]);
prev = cp;
advance_and_return_if_error({});
}
// sanity-check ending state
if (prev)
{
if (*prev == U'_')
{
set_error_and_return_if_eof({});
set_error_and_return_default("underscores must be followed by digits."sv);
}
else if (is_match(*prev, U'e', U'E', U'+', U'-'))
{
set_error_and_return_if_eof({});
set_error_and_return_default("expected exponent digit, saw '"sv, *cp, '\'');
}
}
// convert to double
double result;
#if TOML_FLOAT_CHARCONV
{
auto fc_result = std::from_chars(chars, chars + length, result);
switch (fc_result.ec)
{
case std::errc{}: //ok
return result * sign;
case std::errc::invalid_argument:
set_error_and_return_default(
"'"sv, std::string_view{ chars, length }, "' could not be interpreted as a value."sv
);
break;
case std::errc::result_out_of_range:
set_error_and_return_default(
"'"sv, std::string_view{ chars, length }, "' is not representable in 64 bits."sv
);
break;
default: //??
set_error_and_return_default(
"an unspecified error occurred while trying to interpret '"sv,
std::string_view{ chars, length }, "' as a value."sv
);
}
}
#else
{
std::stringstream ss;
ss.imbue(std::locale::classic());
ss.write(chars, static_cast<std::streamsize>(length));
if ((ss >> result))
return result * sign;
else
set_error_and_return_default(
"'"sv, std::string_view{ chars, length }, "' could not be interpreted as a value."sv
);
}
#endif
}
[[nodiscard]]
double parse_hex_float() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(is_match(*cp, U'0', U'+', U'-'));
push_parse_scope("hexadecimal floating-point"sv);
#if TOML_LANG_UNRELEASED // toml/issues/562 (hexfloats)
// sign
const int sign = *cp == U'-' ? -1 : 1;
if (is_match(*cp, U'+', U'-'))
advance_and_return_if_error_or_eof({});
// '0'
if (*cp != U'0')
set_error_and_return_default(" expected '0', saw '"sv, *cp, '\'');
advance_and_return_if_error_or_eof({});
// 'x' or 'X'
if (!is_match(*cp, U'x', U'X'))
set_error_and_return_default("expected 'x' or 'X', saw '"sv, *cp, '\'');
advance_and_return_if_error_or_eof({});
// <HEX DIGITS> ([.]<HEX DIGITS>)? [pP] [+-]? <DEC DIGITS>
// consume value fragments
struct fragment
{
char chars[24];
size_t length;
double value;
};
fragment fragments[] =
{
{}, // mantissa, whole part
{}, // mantissa, fractional part
{} // exponent
};
fragment* current_fragment = fragments;
const utf8_codepoint* prev = {};
int exponent_sign = 1;
while (!is_eof() && !is_value_terminator(*cp))
{
if (*cp == U'_')
{
if (!prev || !is_hexadecimal_digit(*prev))
set_error_and_return_default("underscores may only follow digits"sv);
prev = cp;
advance_and_return_if_error_or_eof({});
continue;
}
else if (prev && *prev == U'_' && !is_hexadecimal_digit(*cp))
set_error_and_return_default("underscores must be followed by digits."sv);
else if (*cp == U'.')
{
// 0x10.0p-.0 (exponent cannot have '.')
if (current_fragment == fragments + 2)
set_error_and_return_default("expected exponent digit or sign, saw '.'"sv);
// 0x10.0.p-0 (multiple '.')
else if (current_fragment == fragments + 1)
set_error_and_return_default("expected hexadecimal digit or exponent, , saw '.'"sv);
else
current_fragment++;
}
else if (is_match(*cp, U'p', U'P'))
{
// 0x10.0pp-0 (multiple 'p')
if (current_fragment == fragments + 2)
set_error_and_return_default("expected exponent digit or sign, saw '"sv, *cp, '\'');
// 0x.p-0 (mantissa is just '.')
else if (fragments[0].length == 0_sz && fragments[1].length == 0_sz)
set_error_and_return_default("expected hexadecimal digit, saw '"sv, *cp, '\'');
else
current_fragment = fragments + 2;
}
else if (is_match(*cp, U'+', U'-'))
{
// 0x-10.0p-0 (sign in mantissa)
if (current_fragment != fragments + 2)
set_error_and_return_default("expected hexadecimal digit or '.', saw '"sv, *cp, '\'');
// 0x10.0p0- (misplaced exponent sign)
else if (!is_match(*prev, U'p', U'P'))
set_error_and_return_default("expected exponent digit, saw '"sv, *cp, '\'');
else
exponent_sign = *cp == U'-' ? -1 : 1;
}
else if (current_fragment < fragments + 2 && !is_hexadecimal_digit(*cp))
set_error_and_return_default("expected hexadecimal digit or '.', saw '"sv, *cp, '\'');
else if (current_fragment == fragments + 2 && !is_decimal_digit(*cp))
set_error_and_return_default("expected exponent digit or sign, saw '"sv, *cp, '\'');
else if (current_fragment->length == sizeof(fragment::chars))
set_error_and_return_default(
"fragment exceeeds maximum length of "sv, sizeof(fragment::chars), " characters"sv
);
else
current_fragment->chars[current_fragment->length++] = static_cast<char>(cp->bytes[0]);
prev = cp;
advance_and_return_if_error({});
}
// sanity-check ending state
if (current_fragment != fragments + 2 || current_fragment->length == 0_sz)
{
set_error_and_return_if_eof({});
set_error_and_return_default("missing exponent"sv);
}
else if (prev && *prev == U'_')
{
set_error_and_return_if_eof({});
set_error_and_return_default("underscores must be followed by digits."sv);
}
// calculate values for the three fragments
static constexpr auto calc_value = [](fragment& f, auto fragment_idx) noexcept
{
static constexpr uint32_t base = decltype(fragment_idx)::value == 2 ? 10 : 16;
// left-trim zeroes
const char* c = f.chars;
size_t sig = {};
while (f.length && *c == '0')
{
f.length--;
c++;
sig++;
}
if (!f.length)
return;
// calculate value
auto place = 1u;
for (size_t i = 0; i < f.length - 1_sz; i++)
place *= base;
uint32_t val{};
while (place)
{
if constexpr (base == 16)
val += place * hex_to_dec(*c);
else
val += place * static_cast<uint32_t>(*c - '0');
if constexpr (decltype(fragment_idx)::value == 1)
sig++;
c++;
place /= base;
}
f.value = static_cast<double>(val);
// shift the fractional part
if constexpr (decltype(fragment_idx)::value == 1)
{
while (sig--)
f.value /= base;
}
};
calc_value(fragments[0], std::integral_constant<int, 0>{});
calc_value(fragments[1], std::integral_constant<int, 1>{});
calc_value(fragments[2], std::integral_constant<int, 2>{});
return (fragments[0].value + fragments[1].value)
* pow(2.0, fragments[2].value * exponent_sign)
* sign;
#else // !TOML_LANG_UNRELEASED
set_error_and_return_default(
"hexadecimal floating-point values are not supported "
"in TOML 1.0.0 and earlier."sv
);
#endif // !TOML_LANG_UNRELEASED
}
template <uint64_t base>
[[nodiscard]]
int64_t parse_integer() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
using traits = parse_integer_traits<base>;
push_parse_scope(traits::scope_qualifier);
[[maybe_unused]] int64_t sign = 1;
if constexpr (traits::is_signed)
{
sign = *cp == U'-' ? -1 : 1;
if (is_match(*cp, U'+', U'-'))
advance_and_return_if_error_or_eof({});
}
if constexpr (base == 10)
{
if (!traits::is_digit(*cp))
set_error_and_return_default("expected expected digit or sign, saw '"sv, *cp, '\'');
}
else
{
// '0'
if (*cp != U'0')
set_error_and_return_default("expected '0', saw '"sv, *cp, '\'');
advance_and_return_if_error_or_eof({});
// 'b', 'o', 'x'
if (*cp != traits::prefix_codepoint)
set_error_and_return_default("expected '"sv, traits::prefix, "', saw '"sv, *cp, '\'');
advance_and_return_if_error_or_eof({});
}
// consume value chars
char chars[traits::buffer_length];
size_t length = {};
const utf8_codepoint* prev = {};
while (!is_eof() && !is_value_terminator(*cp))
{
if (*cp == U'_')
{
if (!prev || !traits::is_digit(*prev))
set_error_and_return_default("underscores may only follow digits"sv);
prev = cp;
advance_and_return_if_error_or_eof({});
continue;
}
else if (prev && *prev == U'_' && !traits::is_digit(*cp))
set_error_and_return_default("underscores must be followed by digits."sv);
else if (!traits::is_digit(*cp))
set_error_and_return_default("expected digit, saw '"sv, *cp, '\'');
else if (length == sizeof(chars))
set_error_and_return_default("exceeds maximum length of "sv, sizeof(chars), " characters"sv);
else
chars[length++] = static_cast<char>(cp->bytes[0]);
prev = cp;
advance_and_return_if_error({});
}
// sanity check ending state
if (prev && *prev == U'_')
{
set_error_and_return_if_eof({});
set_error_and_return_default("underscores must be followed by digits."sv);
}
// check for leading zeroes
if constexpr (base == 10)
{
if (chars[0] == '0')
set_error_and_return_default("leading zeroes are prohibited"sv);
}
// single digits can be converted trivially
if (length == 1_sz)
{
if constexpr (base == 16)
return static_cast<int64_t>(hex_to_dec(chars[0]));
else if constexpr (base <= 10)
return static_cast<int64_t>(chars[0] - '0');
}
// otherwise do the thing
uint64_t result = {};
{
const char* msd = chars;
const char* end = msd + length;
while (msd < end && *msd == '0')
msd++;
if (msd == end)
return 0ll;
uint64_t power = 1;
while (--end >= msd)
{
if constexpr (base == 16)
result += power * hex_to_dec(*end);
else
result += power * static_cast<uint64_t>(*end - '0');
power *= base;
}
}
// range check
if (result > static_cast<uint64_t>(std::numeric_limits<int64_t>::max()) + (sign < 0 ? 1ull : 0ull))
set_error_and_return_default(
"'"sv, std::string_view{ chars, length }, "' is not representable in 64 bits"sv
);
if constexpr (traits::is_signed)
return static_cast<int64_t>(result) * sign;
else
return static_cast<int64_t>(result);
}
[[nodiscard]]
date parse_date(bool part_of_datetime = false) TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(is_decimal_digit(*cp));
push_parse_scope("date"sv);
// "YYYY"
uint32_t digits[4];
if (!consume_digit_sequence(digits, 4_sz))
set_error_and_return_default("expected 4-digit year, saw '"sv, *cp, '\'');
const auto year = digits[3]
+ digits[2] * 10u
+ digits[1] * 100u
+ digits[0] * 1000u;
const auto is_leap_year = (year % 4u == 0u) && ((year % 100u != 0u) || (year % 400u == 0u));
set_error_and_return_if_eof({});
// '-'
if (*cp != U'-')
set_error_and_return_default("expected '-', saw '"sv, *cp, '\'');
advance_and_return_if_error_or_eof({});
// "MM"
if (!consume_digit_sequence(digits, 2_sz))
set_error_and_return_default("expected 2-digit month, saw '"sv, *cp, '\'');
const auto month = digits[1] + digits[0] * 10u;
if (month == 0u || month > 12u)
set_error_and_return_default("expected month between 1 and 12 (inclusive), saw "sv, month);
const auto max_days_in_month =
month == 2u
? (is_leap_year ? 29u : 28u)
: (month == 4u || month == 6u || month == 9u || month == 11u ? 30u : 31u)
;
set_error_and_return_if_eof({});
// '-'
if (*cp != U'-')
set_error_and_return_default("expected '-', saw '"sv, *cp, '\'');
advance_and_return_if_error_or_eof({});
// "DD"
if (!consume_digit_sequence(digits, 2_sz))
set_error_and_return_default("expected 2-digit day, saw '"sv, *cp, '\'');
const auto day = digits[1] + digits[0] * 10u;
if (day == 0u || day > max_days_in_month)
set_error_and_return_default(
"expected day between 1 and "sv, max_days_in_month, " (inclusive), saw "sv, day
);
if (!part_of_datetime && !is_eof() && !is_value_terminator(*cp))
set_error_and_return_default("expected value-terminator, saw '"sv, *cp, '\'');
return
{
static_cast<uint16_t>(year),
static_cast<uint8_t>(month),
static_cast<uint8_t>(day)
};
}
[[nodiscard]]
time parse_time(bool part_of_datetime = false) TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(is_decimal_digit(*cp));
push_parse_scope("time"sv);
static constexpr auto max_digits = 9_sz;
uint32_t digits[max_digits];
// "HH"
if (!consume_digit_sequence(digits, 2_sz))
set_error_and_return_default("expected 2-digit hour, saw '"sv, *cp, '\'');
const auto hour = digits[1] + digits[0] * 10u;
if (hour > 23u)
set_error_and_return_default("expected hour between 0 to 59 (inclusive), saw "sv, hour);
set_error_and_return_if_eof({});
// ':'
if (*cp != U':')
set_error_and_return_default("expected ':', saw '"sv, *cp, '\'');
advance_and_return_if_error_or_eof({});
// "MM"
if (!consume_digit_sequence(digits, 2_sz))
set_error_and_return_default("expected 2-digit minute, saw '"sv, *cp, '\'');
const auto minute = digits[1] + digits[0] * 10u;
if (minute > 59u)
set_error_and_return_default("expected minute between 0 and 59 (inclusive), saw "sv, minute);
auto time = ::toml::time{
static_cast<uint8_t>(hour),
static_cast<uint8_t>(minute),
};
// ':'
if constexpr (TOML_LANG_UNRELEASED) // toml/issues/671 (allow omission of seconds)
{
if (is_eof()
|| is_value_terminator(*cp)
|| (part_of_datetime && is_match(*cp, U'+', U'-', U'Z')))
return time;
}
else
set_error_and_return_if_eof({});
if (*cp != U':')
set_error_and_return_default("expected ':', saw '"sv, *cp, '\'');
advance_and_return_if_error_or_eof({});
// "SS"
if (!consume_digit_sequence(digits, 2_sz))
set_error_and_return_default("expected 2-digit second, saw '"sv, *cp, '\'');
const auto second = digits[1] + digits[0] * 10u;
if (second > 59u)
set_error_and_return_default("expected second between 0 and 59 (inclusive), saw "sv, second);
time.second = static_cast<uint8_t>(second);
// '.' (early-exiting is allowed; fractional is optional)
if (is_eof()
|| is_value_terminator(*cp)
|| (part_of_datetime && is_match(*cp, U'+', U'-', U'Z')))
return time;
if (*cp != U'.')
set_error_and_return_default("expected '.', saw '"sv, *cp, '\'');
advance_and_return_if_error_or_eof({});
// "FFFFFFFFF"
auto digit_count = consume_variable_length_digit_sequence(digits, max_digits);
if (!digit_count)
{
set_error_and_return_if_eof({});
set_error_and_return_default("expected fractional digits, saw '"sv, *cp, '\'');
}
else if (!is_eof())
{
if (digit_count == max_digits && is_decimal_digit(*cp))
set_error_and_return_default("fractional component exceeds maximum precision of "sv, max_digits);
else if (!part_of_datetime && !is_value_terminator(*cp))
set_error_and_return_default("expected value-terminator, saw '"sv, *cp, '\'');
}
uint32_t value = 0u;
uint32_t place = 1u;
for (auto i = digit_count; i --> 0_sz;)
{
value += digits[i] * place;
place *= 10u;
}
for (auto i = digit_count; i < max_digits; i++) //implicit zeros
value *= 10u;
time.nanosecond = value;
return time;
}
[[nodiscard]]
date_time parse_date_time() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(is_decimal_digit(*cp));
push_parse_scope("date-time"sv);
// "YYYY-MM-DD"
auto date = parse_date(true);
set_error_and_return_if_eof({});
// ' ' or 'T'
if (!is_match(*cp, U' ', U'T'))
set_error_and_return_default("expected space or 'T', saw '"sv, *cp, '\'');
advance_and_return_if_error_or_eof({});
// "HH:MM:SS.FFFFFFFFF"
auto time = parse_time(true);
return_if_error({});
// no offset
if (is_eof() || is_value_terminator(*cp))
return { date, time };
// zero offset ("Z")
time_offset offset;
if (*cp == U'Z')
advance_and_return_if_error({});
// explicit offset ("+/-HH:MM")
else if (is_match(*cp, U'+', U'-'))
{
push_parse_scope("date-time offset"sv);
// sign
int sign = *cp == U'-' ? -1 : 1;
advance_and_return_if_error_or_eof({});
// "HH"
int digits[2];
if (!consume_digit_sequence(digits, 2_sz))
set_error_and_return_default("expected 2-digit hour, saw '"sv, *cp, '\'');
const auto hour = digits[1] + digits[0] * 10;
if (hour > 23)
set_error_and_return_default("expected hour between 0 and 23 (inclusive), saw "sv, hour);
set_error_and_return_if_eof({});
// ':'
if (*cp != U':')
set_error_and_return_default("expected ':', saw '"sv, *cp, '\'');
advance_and_return_if_error_or_eof({});
// "MM"
if (!consume_digit_sequence(digits, 2_sz))
set_error_and_return_default("expected 2-digit minute, saw '"sv, *cp, '\'');
const auto minute = digits[1] + digits[0] * 10;
if (minute > 59)
set_error_and_return_default("expected minute between 0 and 59 (inclusive), saw "sv, hour);
offset.minutes = static_cast<int16_t>((hour * 60 + minute) * sign);
}
if (!is_eof() && !is_value_terminator(*cp))
set_error_and_return_default("expected value-terminator, saw '"sv, *cp, '\'');
return { date, time, offset };
}
TOML_POP_WARNINGS // TOML_DISABLE_SWITCH_WARNINGS, TOML_DISABLE_INIT_WARNINGS
[[nodiscard]]
std::unique_ptr<toml::array> parse_array() TOML_MAY_THROW;
[[nodiscard]]
std::unique_ptr<toml::table> parse_inline_table() TOML_MAY_THROW;
[[nodiscard]]
std::unique_ptr<node> parse_value() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(!is_value_terminator(*cp));
push_parse_scope("value"sv);
// check if it begins with some control character
// (note that this will also fail for whitespace but we're assuming we've
// called consume_leading_whitespace() before calling parse_value())
if TOML_UNLIKELY(is_control_character(*cp))
set_error_and_return_default("unexpected control character"sv);
// underscores at the beginning
else if (*cp == U'_')
set_error_and_return_default("values may not begin with underscores"sv);
const auto begin_pos = cp->position;
std::unique_ptr<node> val;
do
{
assert_or_assume(!is_control_character(*cp));
assert_or_assume(*cp != U'_');
// detect the value type and parse accordingly,
// starting with value types that can be detected
// unambiguously from just one character.
// arrays
if (*cp == U'[')
{
val = parse_array();
if constexpr (!TOML_LANG_AT_LEAST(1, 0, 0)) // toml/issues/665 (heterogeneous arrays)
{
if (!val->ref_cast<array>().is_homogeneous())
set_error_at(
begin_pos,
"arrays cannot contain values of different types before TOML 1.0.0"
);
}
}
// inline tables
else if (*cp == U'{')
val = parse_inline_table();
// floats beginning with '.'
else if (*cp == U'.')
val = std::make_unique<value<double>>(parse_float());
// strings
else if (is_string_delimiter(*cp))
val = std::make_unique<value<string>>(std::move(parse_string().value));
// bools
else if (is_match(*cp, U't', U'f', U'T', U'F'))
val = std::make_unique<value<bool>>(parse_boolean());
// inf or nan
else if (is_match(*cp, U'i', U'n', U'I', U'N'))
val = std::make_unique<value<double>>(parse_inf_or_nan());
return_if_error({});
if (val)
break;
// value types from here down require more than one character to unambiguously identify
// so scan ahead and collect a set of value 'traits'.
enum value_traits : int
{
has_nothing = 0,
has_digits = 1,
has_b = 1 << 1, // as second char only (0b)
has_e = 1 << 2, // only float exponents
has_o = 1 << 3, // as second char only (0o)
has_p = 1 << 4, // only hexfloat exponents
has_t = 1 << 5,
has_x = 1 << 6, // as second or third char only (0x, -0x, +0x)
has_z = 1 << 7,
has_colon = 1 << 8,
has_plus = 1 << 9,
has_minus = 1 << 10,
has_dot = 1 << 11,
begins_sign = 1 << 12,
begins_digit = 1 << 13,
begins_zero = 1 << 14
// Q: "why not make these real values in the enum??"
// A: because the visual studio debugger stops treating them as a set of flags if you add
// non-pow2 values, making them much harder to debug.
#define signs_msk (has_plus | has_minus)
#define bzero_msk (begins_zero | has_digits)
#define bdigit_msk (begins_digit | has_digits)
};
value_traits traits = has_nothing;
const auto has_any = [&](auto t) noexcept { return (traits & t) != has_nothing; };
const auto has_none = [&](auto t) noexcept { return (traits & t) == has_nothing; };
const auto add_trait = [&](auto t) noexcept { traits = static_cast<value_traits>(traits | t); };
// examine the first character to get the 'begins with' traits
// (good fail-fast opportunity; all the remaining types begin with numeric digits or signs)
if (is_decimal_digit(*cp))
add_trait(*cp == U'0' ? begins_zero : begins_digit);
else if (is_match(*cp, U'+', U'-'))
add_trait(begins_sign);
else
break;
// scan the rest of the value to determine the remaining traits
char32_t chars[utf8_buffered_reader::max_history_length];
size_t char_count = {}, advance_count = {};
bool eof_while_scanning = false;
const auto scan = [&]() TOML_MAY_THROW
{
if (is_eof())
return;
assert_or_assume(!is_value_terminator(*cp));
do
{
if (const auto c = **cp; c != U'_')
{
chars[char_count++] = c;
if (is_decimal_digit(c))
add_trait(has_digits);
else if (is_ascii_letter(c))
{
assert_or_assume((c >= U'a' && c <= U'z') || (c >= U'A' && c <= U'Z'));
switch (static_cast<char32_t>(c | 32u))
{
case U'b':
if (char_count == 2_sz && has_any(begins_zero))
add_trait(has_b);
break;
case U'e':
if (char_count > 1_sz
&& has_none(has_b | has_o | has_p | has_t | has_x | has_z | has_colon)
&& (has_none(has_plus | has_minus) || has_any(begins_sign)))
add_trait(has_e);
break;
case U'o':
if (char_count == 2_sz && has_any(begins_zero))
add_trait(has_o);
break;
case U'p':
if (has_any(has_x))
add_trait(has_p);
break;
case U'x':
if ((char_count == 2_sz && has_any(begins_zero))
|| (char_count == 3_sz && has_any(begins_sign) && chars[1] == U'0'))
add_trait(has_x);
break;
case U't': add_trait(has_t); break;
case U'z': add_trait(has_z); break;
}
}
else if (c <= U':')
{
assert_or_assume(c < U'0' || c > U'9');
switch (c)
{
case U'+': add_trait(has_plus); break;
case U'-': add_trait(has_minus); break;
case U'.': add_trait(has_dot); break;
case U':': add_trait(has_colon); break;
}
}
}
advance_and_return_if_error();
advance_count++;
eof_while_scanning = is_eof();
}
while (advance_count < utf8_buffered_reader::max_history_length
&& !is_eof()
&& !is_value_terminator(*cp)
);
};
scan();
return_if_error({});
// force further scanning if this could have been a date-time with a space instead of a T
if (char_count == 10_sz
&& traits == (bdigit_msk | has_minus)
&& chars[4] == U'-'
&& chars[7] == U'-'
&& !is_eof()
&& *cp == U' ')
{
const auto pre_advance_count = advance_count;
const auto pre_scan_traits = traits;
chars[char_count++] = *cp;
add_trait(has_t);
const auto backpedal = [&]() noexcept
{
go_back(advance_count - pre_advance_count);
advance_count = pre_advance_count;
traits = pre_scan_traits;
char_count = 10_sz;
};
advance_and_return_if_error({});
advance_count++;
if (is_eof() || !is_decimal_digit(*cp))
backpedal();
else
{
chars[char_count++] = *cp;
advance_and_return_if_error({});
advance_count++;
scan();
return_if_error({});
if (char_count == 12_sz)
backpedal();
}
}
// set the reader back to where we started
go_back(advance_count);
if (char_count < utf8_buffered_reader::max_history_length - 1_sz)
chars[char_count] = U'\0';
// if after scanning ahead we still only have one value character,
// the only valid value type is an integer.
if (char_count == 1_sz)
{
if (has_any(begins_zero | begins_digit))
{
val = std::make_unique<value<int64_t>>(static_cast<int64_t>(chars[0] - U'0'));
advance(); //skip the digit
break;
}
//anything else would be ambiguous.
else
set_error_and_return_default(
eof_while_scanning
? "encountered end-of-file"sv
: "could not determine value type"sv
);
}
// now things that can be identified from two or more characters
return_if_error({});
assert_or_assume(char_count >= 2_sz);
// do some 'fuzzy matching' where there's no ambiguity, since that allows the specific
// typed parse functions to take over and show better diagnostics if there's an issue
// (as opposed to the fallback "could not determine type" message)
if (has_any(has_p))
val = std::make_unique<value<double>>(parse_hex_float());
else if (has_any(has_x))
val = std::make_unique<value<int64_t>>(parse_integer<16>());
else if (has_any(has_o))
val = std::make_unique<value<int64_t>>(parse_integer<8>());
else if (has_any(has_b))
val = std::make_unique<value<int64_t>>(parse_integer<2>());
else if (has_any(has_e) || (has_any(begins_zero | begins_digit) && chars[1] == U'.'))
val = std::make_unique<value<double>>(parse_float());
else if (has_any(begins_sign))
{
// single-digit signed integers
if (char_count == 2_sz && has_any(has_digits))
{
val = std::make_unique<value<int64_t>>(
static_cast<int64_t>(chars[1] - U'0')
* (chars[0] == U'-' ? -1LL : 1LL)
);
advance(); //skip the sign
advance(); //skip the digit
break;
}
// simple signed floats (e.g. +1.0)
if (is_decimal_digit(chars[1]) && chars[2] == U'.')
val = std::make_unique<value<double>>(parse_float());
// signed infinity or nan
else if (is_match(chars[1], U'i', U'n', U'I', U'N'))
val = std::make_unique<value<double>>(parse_inf_or_nan());
}
return_if_error({});
if (val)
break;
// match trait masks against what they can match exclusively.
// all correct value parses will come out of this list, so doing this as a switch is likely to
// be a better friend to the optimizer on the success path (failure path can be slow but that
// doesn't matter much).
switch (unbox_enum(traits))
{
//=================== binary integers
// 0b10
case bzero_msk | has_b:
val = std::make_unique<value<int64_t>>(parse_integer<2>());
break;
//=================== octal integers
// 0o10
case bzero_msk | has_o:
val = std::make_unique<value<int64_t>>(parse_integer<8>());
break;
//=================== decimal integers
// 00
// 10
// +10
// -10
case bzero_msk: [[fallthrough]];
case bdigit_msk: [[fallthrough]];
case begins_sign | has_digits | has_minus: [[fallthrough]];
case begins_sign | has_digits | has_plus:
val = std::make_unique<value<int64_t>>(parse_integer<10>());
break;
//=================== hexadecimal integers
// 0x10
case bzero_msk | has_x:
val = std::make_unique<value<int64_t>>(parse_integer<16>());
break;
//=================== decimal floats
// 0e1
// 0e-1
// 0e+1
// 0.0
// 0.0e1
// 0.0e-1
// 0.0e+1
case bzero_msk | has_e: [[fallthrough]];
case bzero_msk | has_e | has_minus: [[fallthrough]];
case bzero_msk | has_e | has_plus: [[fallthrough]];
case bzero_msk | has_dot: [[fallthrough]];
case bzero_msk | has_dot | has_e: [[fallthrough]];
case bzero_msk | has_dot | has_e | has_minus: [[fallthrough]];
case bzero_msk | has_dot | has_e | has_plus: [[fallthrough]];
// 1e1
// 1e-1
// 1e+1
// 1.0
// 1.0e1
// 1.0e-1
// 1.0e+1
case bdigit_msk | has_e: [[fallthrough]];
case bdigit_msk | has_e | has_minus: [[fallthrough]];
case bdigit_msk | has_e | has_plus: [[fallthrough]];
case bdigit_msk | has_dot: [[fallthrough]];
case bdigit_msk | has_dot | has_e: [[fallthrough]];
case bdigit_msk | has_dot | has_e | has_minus: [[fallthrough]];
case bdigit_msk | has_dot | has_e | has_plus: [[fallthrough]];
// +1e1
// +1.0
// +1.0e1
// +1.0e+1
// +1.0e-1
// -1.0e+1
case begins_sign | has_digits | has_e | has_plus: [[fallthrough]];
case begins_sign | has_digits | has_dot | has_plus: [[fallthrough]];
case begins_sign | has_digits | has_dot | has_e | has_plus: [[fallthrough]];
case begins_sign | has_digits | has_dot | has_e | signs_msk: [[fallthrough]];
// -1e1
// -1e+1
// +1e-1
// -1.0
// -1.0e1
// -1.0e-1
case begins_sign | has_digits | has_e | has_minus: [[fallthrough]];
case begins_sign | has_digits | has_e | signs_msk: [[fallthrough]];
case begins_sign | has_digits | has_dot | has_minus: [[fallthrough]];
case begins_sign | has_digits | has_dot | has_e | has_minus:
val = std::make_unique<value<double>>(parse_float());
break;
//=================== hexadecimal floats
// 0x10p0
// 0x10p-0
// 0x10p+0
case bzero_msk | has_x | has_p: [[fallthrough]];
case bzero_msk | has_x | has_p | has_minus: [[fallthrough]];
case bzero_msk | has_x | has_p | has_plus: [[fallthrough]];
// -0x10p0
// -0x10p-0
// +0x10p0
// +0x10p+0
// -0x10p+0
// +0x10p-0
case begins_sign | has_digits | has_x | has_p | has_minus: [[fallthrough]];
case begins_sign | has_digits | has_x | has_p | has_plus: [[fallthrough]];
case begins_sign | has_digits | has_x | has_p | signs_msk: [[fallthrough]];
// 0x10.1p0
// 0x10.1p-0
// 0x10.1p+0
case bzero_msk | has_x | has_dot | has_p: [[fallthrough]];
case bzero_msk | has_x | has_dot | has_p | has_minus: [[fallthrough]];
case bzero_msk | has_x | has_dot | has_p | has_plus: [[fallthrough]];
// -0x10.1p0
// -0x10.1p-0
// +0x10.1p0
// +0x10.1p+0
// -0x10.1p+0
// +0x10.1p-0
case begins_sign | has_digits | has_x | has_dot | has_p | has_minus: [[fallthrough]];
case begins_sign | has_digits | has_x | has_dot | has_p | has_plus: [[fallthrough]];
case begins_sign | has_digits | has_x | has_dot | has_p | signs_msk:
val = std::make_unique<value<double>>(parse_hex_float());
break;
//=================== times
// HH:MM
// HH:MM:SS
// HH:MM:SS.FFFFFF
case bzero_msk | has_colon: [[fallthrough]];
case bzero_msk | has_colon | has_dot: [[fallthrough]];
case bdigit_msk | has_colon: [[fallthrough]];
case bdigit_msk | has_colon | has_dot:
val = std::make_unique<value<time>>(parse_time());
break;
//=================== local dates
// YYYY-MM-DD
case bzero_msk | has_minus: [[fallthrough]];
case bdigit_msk | has_minus:
val = std::make_unique<value<date>>(parse_date());
break;
//=================== date-times
// YYYY-MM-DDTHH:MM
// YYYY-MM-DDTHH:MM-HH:MM
// YYYY-MM-DDTHH:MM+HH:MM
// YYYY-MM-DD HH:MM
// YYYY-MM-DD HH:MM-HH:MM
// YYYY-MM-DD HH:MM+HH:MM
// YYYY-MM-DDTHH:MM:SS
// YYYY-MM-DDTHH:MM:SS-HH:MM
// YYYY-MM-DDTHH:MM:SS+HH:MM
// YYYY-MM-DD HH:MM:SS
// YYYY-MM-DD HH:MM:SS-HH:MM
// YYYY-MM-DD HH:MM:SS+HH:MM
case bzero_msk | has_minus | has_colon | has_t: [[fallthrough]];
case bzero_msk | signs_msk | has_colon | has_t: [[fallthrough]];
case bdigit_msk | has_minus | has_colon | has_t: [[fallthrough]];
case bdigit_msk | signs_msk | has_colon | has_t: [[fallthrough]];
// YYYY-MM-DDTHH:MM:SS.FFFFFF
// YYYY-MM-DDTHH:MM:SS.FFFFFF-HH:MM
// YYYY-MM-DDTHH:MM:SS.FFFFFF+HH:MM
// YYYY-MM-DD HH:MM:SS.FFFFFF
// YYYY-MM-DD HH:MM:SS.FFFFFF-HH:MM
// YYYY-MM-DD HH:MM:SS.FFFFFF+HH:MM
case bzero_msk | has_minus | has_colon | has_dot | has_t: [[fallthrough]];
case bzero_msk | signs_msk | has_colon | has_dot | has_t: [[fallthrough]];
case bdigit_msk | has_minus | has_colon | has_dot | has_t: [[fallthrough]];
case bdigit_msk | signs_msk | has_colon | has_dot | has_t: [[fallthrough]];
// YYYY-MM-DDTHH:MMZ
// YYYY-MM-DD HH:MMZ
// YYYY-MM-DDTHH:MM:SSZ
// YYYY-MM-DD HH:MM:SSZ
// YYYY-MM-DDTHH:MM:SS.FFFFFFZ
// YYYY-MM-DD HH:MM:SS.FFFFFFZ
case bzero_msk | has_minus | has_colon | has_z | has_t: [[fallthrough]];
case bzero_msk | has_minus | has_colon | has_dot | has_z | has_t: [[fallthrough]];
case bdigit_msk | has_minus | has_colon | has_z | has_t: [[fallthrough]];
case bdigit_msk | has_minus | has_colon | has_dot | has_z | has_t:
val = std::make_unique<value<date_time>>(parse_date_time());
break;
}
#undef signs_msk
#undef bzero_msk
#undef bdigit_msk
}
while (false);
if (!val)
{
set_error_at(begin_pos, "could not determine value type"sv);
return_after_error({});
}
val->source_ = { begin_pos, current_position(1), reader.source_path() };
return val;
}
[[nodiscard]]
parsed_key parse_key() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(is_bare_key_character(*cp) || is_string_delimiter(*cp));
push_parse_scope("key"sv);
parsed_key key;
recording_whitespace = false;
while (!is_error())
{
#if TOML_LANG_UNRELEASED // toml/issues/687 (unicode bare keys)
if (is_unicode_combining_mark(*cp))
set_error_and_return_default("bare keys may not begin with unicode combining marks"sv);
else
#endif
// bare_key_segment
if (is_bare_key_character(*cp))
key.segments.emplace_back(parse_bare_key_segment());
// "quoted key segment"
else if (is_string_delimiter(*cp))
{
const auto begin_pos = cp->position;
recording_whitespace = true;
auto str = parse_string();
recording_whitespace = false;
return_if_error({});
if (str.was_multi_line)
{
set_error_at(
begin_pos,
"multi-line strings are prohibited in "sv,
key.segments.empty() ? ""sv : "dotted "sv,
"keys"sv
);
return_after_error({});
}
else
key.segments.emplace_back(std::move(str.value));
}
// ???
else
set_error_and_return_default(
"expected bare key starting character or string delimiter, saw '"sv, *cp, '\''
);
// whitespace following the key segment
consume_leading_whitespace();
// eof or no more key to come
if (is_eof() || *cp != U'.')
break;
// was a dotted key, so go around again to consume the next segment
advance_and_return_if_error_or_eof({});
consume_leading_whitespace();
set_error_and_return_if_eof({});
}
return_if_error({});
return key;
}
[[nodiscard]]
parsed_key_value_pair parse_key_value_pair() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(is_string_delimiter(*cp) || is_bare_key_character(*cp));
push_parse_scope("key-value pair"sv);
// get the key
start_recording();
auto key = parse_key();
stop_recording(1_sz);
// skip past any whitespace that followed the key
consume_leading_whitespace();
set_error_and_return_if_eof({});
// '='
if (*cp != U'=')
set_error_and_return_default("expected '=', saw '"sv, *cp, '\'');
advance_and_return_if_error_or_eof({});
// skip past any whitespace that followed the '='
consume_leading_whitespace();
return_if_error({});
set_error_and_return_if_eof({});
// get the value
if (is_value_terminator(*cp))
set_error_and_return_default("expected value, saw '"sv, *cp, '\'');
return { std::move(key), parse_value() };
}
[[nodiscard]]
table* parse_table_header() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(*cp == U'[');
push_parse_scope("table header"sv);
const auto header_begin_pos = cp->position;
source_position header_end_pos;
parsed_key key;
bool is_arr = false;
//parse header
{
// skip first '['
advance_and_return_if_error_or_eof({});
// skip second '[' (if present)
if (*cp == U'[')
{
is_arr = true;
advance_and_return_if_error_or_eof({});
}
// skip past any whitespace that followed the '['
consume_leading_whitespace();
set_error_and_return_if_eof({});
// get the actual key
start_recording();
key = parse_key();
stop_recording(1_sz);
return_if_error({});
// skip past any whitespace that followed the key
consume_leading_whitespace();
return_if_error({});
set_error_and_return_if_eof({});
// consume the closing ']'
if (*cp != U']')
set_error_and_return_default("expected ']', saw '"sv, *cp, '\'');
if (is_arr)
{
advance_and_return_if_error_or_eof({});
if (*cp != U']')
set_error_and_return_default("expected ']', saw '"sv, *cp, '\'');
}
advance_and_return_if_error({});
header_end_pos = current_position(1);
// handle the rest of the line after the header
consume_leading_whitespace();
if (!is_eof() && !consume_comment() && !consume_line_break())
set_error_and_return_default("expected a comment or whitespace, saw '"sv, *cp, '\'');
}
TOML_ASSERT(!key.segments.empty());
// check if each parent is a table/table array, or can be created implicitly as a table.
auto parent = &root;
for (size_t i = 0; i < key.segments.size() - 1_sz; i++)
{
auto child = parent->get(key.segments[i]);
if (!child)
{
child = parent->values.emplace(
key.segments[i],
std::make_unique<table>()
).first->second.get();
implicit_tables.push_back(&child->ref_cast<table>());
child->source_ = { header_begin_pos, header_end_pos, reader.source_path() };
parent = &child->ref_cast<table>();
}
else if (child->is_table())
{
parent = &child->ref_cast<table>();
}
else if (child->is_array() && find(table_arrays, &child->ref_cast<array>()))
{
// table arrays are a special case;
// the spec dictates we select the most recently declared element in the array.
TOML_ASSERT(!child->ref_cast<array>().values.empty());
TOML_ASSERT(child->ref_cast<array>().values.back()->is_table());
parent = &child->ref_cast<array>().values.back()->ref_cast<table>();
}
else
{
if (!is_arr && child->type() == node_type::table)
set_error_and_return_default("cannot redefine existing table '"sv, recording_buffer, '\'');
else
set_error_and_return_default(
"cannot redefine existing "sv, child->type(),
" '"sv, recording_buffer,
"' as "sv, is_arr ? "array-of-tables"sv : "table"sv
);
}
}
// check the last parent table for a node matching the last key.
// if there was no matching node, then sweet;
// we can freely instantiate a new table/table array.
auto matching_node = parent->get(key.segments.back());
if (!matching_node)
{
// if it's an array we need to make the array and it's first table element,
// set the starting regions, and return the table element
if (is_arr)
{
auto tab_arr = &parent->values.emplace(key.segments.back(),std::make_unique<array>())
.first->second->ref_cast<array>();
table_arrays.push_back(tab_arr);
tab_arr->source_ = { header_begin_pos, header_end_pos, reader.source_path() };
tab_arr->values.push_back(std::make_unique<table>());
tab_arr->values.back()->source_ = { header_begin_pos, header_end_pos, reader.source_path() };
return &tab_arr->values.back()->ref_cast<table>();
}
//otherwise we're just making a table
else
{
auto tab = &parent->values.emplace(key.segments.back(),std::make_unique<table>())
.first->second->ref_cast<table>();
tab->source_ = { header_begin_pos, header_end_pos, reader.source_path() };
return tab;
}
}
// if there was already a matching node some sanity checking is necessary;
// this is ok if we're making an array and the existing element is already an array (new element)
// or if we're making a table and the existing element is an implicitly-created table (promote it),
// otherwise this is a redefinition error.
else
{
if (is_arr && matching_node->is_array() && find(table_arrays, &matching_node->ref_cast<array>()))
{
auto tab_arr = &matching_node->ref_cast<array>();
tab_arr->values.push_back(std::make_unique<table>());
tab_arr->values.back()->source_ = { header_begin_pos, header_end_pos, reader.source_path() };
return &tab_arr->values.back()->ref_cast<table>();
}
else if (!is_arr
&& matching_node->is_table()
&& !implicit_tables.empty())
{
auto tbl = &matching_node->ref_cast<table>();
if (auto found = find(implicit_tables, tbl))
{
implicit_tables.erase(implicit_tables.cbegin() + (found - implicit_tables.data()));
tbl->source_.begin = header_begin_pos;
tbl->source_.end = header_end_pos;
return tbl;
}
}
//if we get here it's a redefinition error.
if (!is_arr && matching_node->type() == node_type::table)
set_error_and_return_default("cannot redefine existing table '"sv, recording_buffer, '\'');
else
set_error_and_return_default(
"cannot redefine existing "sv, matching_node->type(),
" '"sv, recording_buffer,
"' as "sv, is_arr ? "array-of-tables"sv : "table"sv
);
}
}
void parse_key_value_pair_and_insert(table* tab) TOML_MAY_THROW
{
return_if_error();
assert_not_eof();
push_parse_scope("key-value pair"sv);
auto kvp = parse_key_value_pair();
return_if_error();
TOML_ASSERT(kvp.key.segments.size() >= 1_sz);
if (kvp.key.segments.size() > 1_sz)
{
for (size_t i = 0; i < kvp.key.segments.size() - 1_sz; i++)
{
auto child = tab->get(kvp.key.segments[i]);
if (!child)
{
child = tab->values.emplace(
std::move(kvp.key.segments[i]),
std::make_unique<table>()
).first->second.get();
dotted_key_tables.push_back(&child->ref_cast<table>());
dotted_key_tables.back()->inline_ = true;
child->source_ = kvp.value->source_;
}
else if (!child->is_table() || !find(dotted_key_tables, &child->ref_cast<table>()))
set_error("cannot redefine existing "sv, child->type(), " as dotted key-value pair"sv);
else
child->source_.end = kvp.value->source_.end;
return_if_error();
tab = &child->ref_cast<table>();
}
}
if (auto conflicting_node = tab->get(kvp.key.segments.back()))
{
if (conflicting_node->type() == kvp.value->type())
set_error(
"cannot redefine existing "sv, conflicting_node->type(), " '"sv, recording_buffer, '\''
);
else
set_error(
"cannot redefine existing "sv, conflicting_node->type(),
" '"sv, recording_buffer,
"' as "sv, kvp.value->type()
);
}
return_if_error();
tab->values.emplace(
std::move(kvp.key.segments.back()),
std::move(kvp.value)
);
}
void parse_document() TOML_MAY_THROW
{
assert_not_error();
assert_not_eof();
push_parse_scope("root table"sv);
table* current_table = &root;
do
{
return_if_error();
// leading whitespace, line endings, comments
if (consume_leading_whitespace()
|| consume_line_break()
|| consume_comment())
continue;
// [tables]
// [[table array]]
else if (*cp == U'[')
current_table = parse_table_header();
// bare_keys
// dotted.keys
// "quoted keys"
else if (is_bare_key_character(*cp) || is_string_delimiter(*cp))
{
push_parse_scope("key-value pair"sv);
parse_key_value_pair_and_insert(current_table);
// handle the rest of the line after the kvp
// (this is not done in parse_key_value_pair() because that function is also used for inline tables)
consume_leading_whitespace();
return_if_error();
if (!is_eof() && !consume_comment() && !consume_line_break())
set_error("expected a comment or whitespace, saw '"sv, *cp, '\'');
}
else // ??
set_error("expected keys, tables, whitespace or comments, saw '"sv, *cp, '\'');
}
while (!is_eof());
auto eof_pos = current_position(1);
root.source_.end = eof_pos;
if (current_table
&& current_table != &root
&& current_table->source_.end <= current_table->source_.begin)
current_table->source_.end = eof_pos;
}
static void update_region_ends(node& nde) noexcept
{
const auto type = nde.type();
if (type > node_type::array)
return;
if (type == node_type::table)
{
auto& tbl = nde.ref_cast<table>();
if (tbl.inline_) //inline tables (and all their inline descendants) are already correctly terminated
return;
auto end = nde.source_.end;
for (auto& [k, v] : tbl.values)
{
(void)k;
update_region_ends(*v);
if (end < v->source_.end)
end = v->source_.end;
}
}
else //arrays
{
auto& arr = nde.ref_cast<array>();
auto end = nde.source_.end;
for (auto& v : arr.values)
{
update_region_ends(*v);
if (end < v->source_.end)
end = v->source_.end;
}
nde.source_.end = end;
}
}
public:
parser(utf8_reader_interface&& reader_) TOML_MAY_THROW
: reader{ reader_ }
{
root.source_ = { prev_pos, prev_pos, reader.source_path() };
if (!reader.peek_eof())
{
cp = reader.read_next();
#if !TOML_EXCEPTIONS
if (reader.error())
{
err = std::move(reader.error());
return;
}
#endif
if (cp)
parse_document();
}
update_region_ends(root);
}
TOML_PUSH_WARNINGS
TOML_DISABLE_INIT_WARNINGS
[[nodiscard]]
operator parse_result() && noexcept
{
#if TOML_EXCEPTIONS
return { std::move(root) };
#else
if (err)
return parse_result{ *std::move(err) };
else
return parse_result{ std::move(root) };
#endif
}
TOML_POP_WARNINGS
};
TOML_EXTERNAL_LINKAGE
std::unique_ptr<toml::array> parser::parse_array() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(*cp == U'[');
push_parse_scope("array"sv);
// skip opening '['
advance_and_return_if_error_or_eof({});
auto arr = std::make_unique<array>();
auto& vals = arr->values;
enum parse_elem : int
{
none,
comma,
val
};
parse_elem prev = none;
while (!is_error())
{
while (consume_leading_whitespace()
|| consume_line_break()
|| consume_comment())
continue;
set_error_and_return_if_eof({});
// commas - only legal after a value
if (*cp == U',')
{
if (prev == val)
{
prev = comma;
advance_and_return_if_error_or_eof({});
continue;
}
set_error_and_return_default("expected value or closing ']', saw comma"sv);
}
// closing ']'
else if (*cp == U']')
{
advance_and_return_if_error({});
break;
}
// must be a value
else
{
if (prev == val)
{
set_error_and_return_default("expected comma or closing ']', saw '"sv, *cp, '\'');
continue;
}
prev = val;
vals.push_back(parse_value());
}
}
return_if_error({});
return arr;
}
TOML_EXTERNAL_LINKAGE
std::unique_ptr<toml::table> parser::parse_inline_table() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(*cp == U'{');
push_parse_scope("inline table"sv);
// skip opening '{'
advance_and_return_if_error_or_eof({});
auto tab = std::make_unique<table>();
tab->inline_ = true;
enum parse_elem : int
{
none,
comma,
kvp
};
parse_elem prev = none;
while (!is_error())
{
if constexpr (TOML_LANG_UNRELEASED) // toml/issues/516 (newlines/trailing commas in inline tables)
{
while (consume_leading_whitespace()
|| consume_line_break()
|| consume_comment())
continue;
}
else
{
while (consume_leading_whitespace())
continue;
}
set_error_and_return_if_eof({});
// commas - only legal after a key-value pair
if (*cp == U',')
{
if (prev == kvp)
{
prev = comma;
advance_and_return_if_error_or_eof({});
}
else
set_error_and_return_default("expected key-value pair or closing '}', saw comma"sv);
}
// closing '}'
else if (*cp == U'}')
{
if constexpr (!TOML_LANG_UNRELEASED) // toml/issues/516 (newlines/trailing commas in inline tables)
{
if (prev == comma)
{
set_error_and_return_default("expected key-value pair, saw closing '}' (dangling comma)"sv);
continue;
}
}
advance_and_return_if_error({});
break;
}
// key-value pair
else if (is_string_delimiter(*cp) || is_bare_key_character(*cp))
{
if (prev == kvp)
set_error_and_return_default("expected comma or closing '}', saw '"sv, *cp, '\'');
else
{
prev = kvp;
parse_key_value_pair_and_insert(tab.get());
}
}
else
set_error_and_return_default("expected key or closing '}', saw '"sv, *cp, '\'');
}
return_if_error({});
return tab;
}
TOML_API
TOML_EXTERNAL_LINKAGE
parse_result do_parse(utf8_reader_interface&& reader) TOML_MAY_THROW
{
return impl::parser{ std::move(reader) };
}
TOML_ABI_NAMESPACE_END // TOML_EXCEPTIONS
#undef push_parse_scope_2
#undef push_parse_scope_1
#undef push_parse_scope
#undef TOML_RETURNS_BY_THROWING
#undef is_eof
#undef assert_not_eof
#undef return_if_eof
#undef is_error
#undef return_after_error
#undef assert_not_error
#undef return_if_error
#undef return_if_error_or_eof
#undef set_error_and_return
#undef set_error_and_return_default
#undef set_error_and_return_if_eof
#undef advance_and_return_if_error
#undef advance_and_return_if_error_or_eof
}
namespace toml
{
#if TOML_EXCEPTIONS
TOML_ABI_NAMESPACE_START(parse_ex)
#else
TOML_ABI_NAMESPACE_START(parse_noex)
#endif
TOML_API
TOML_EXTERNAL_LINKAGE
parse_result parse(std::string_view doc, std::string_view source_path) TOML_MAY_THROW
{
return impl::do_parse(impl::utf8_reader{ doc, source_path });
}
TOML_API
TOML_EXTERNAL_LINKAGE
parse_result parse(std::string_view doc, std::string&& source_path) TOML_MAY_THROW
{
return impl::do_parse(impl::utf8_reader{ doc, std::move(source_path) });
}
#ifdef __cpp_lib_char8_t
TOML_API
TOML_EXTERNAL_LINKAGE
parse_result parse(std::u8string_view doc, std::string_view source_path) TOML_MAY_THROW
{
return impl::do_parse(impl::utf8_reader{ doc, source_path });
}
TOML_API
TOML_EXTERNAL_LINKAGE
parse_result parse(std::u8string_view doc, std::string&& source_path) TOML_MAY_THROW
{
return impl::do_parse(impl::utf8_reader{ doc, std::move(source_path) });
}
#endif // __cpp_lib_char8_t
TOML_ABI_NAMESPACE_END // TOML_EXCEPTIONS
inline namespace literals
{
#if TOML_EXCEPTIONS
TOML_ABI_NAMESPACE_START(lit_ex)
#else
TOML_ABI_NAMESPACE_START(lit_noex)
#endif
TOML_API
TOML_EXTERNAL_LINKAGE
parse_result operator"" _toml(const char* str, size_t len) TOML_MAY_THROW
{
return parse(std::string_view{ str, len });
}
#ifdef __cpp_lib_char8_t
TOML_API
TOML_EXTERNAL_LINKAGE
parse_result operator"" _toml(const char8_t* str, size_t len) TOML_MAY_THROW
{
return parse(std::u8string_view{ str, len });
}
#endif // __cpp_lib_char8_t
TOML_ABI_NAMESPACE_END // TOML_EXCEPTIONS
}
}
TOML_POP_WARNINGS // TOML_DISABLE_SWITCH_WARNINGS, TOML_DISABLE_PADDING_WARNINGS
#pragma endregion
//------------------------------------------------------------------ ↑ toml_parser.hpp -------------------------------
#endif // TOML_PARSER
#if !TOML_ALL_INLINE
//--------------------------------------------------------------------------------------- ↓ toml_instantiations.hpp --
#pragma region
TOML_PUSH_WARNINGS
TOML_DISABLE_ALL_WARNINGS
#include <ostream>
#include <istream>
#include <fstream>
TOML_POP_WARNINGS
namespace toml
{
// value<>
template class TOML_API value<string>;
template class TOML_API value<int64_t>;
template class TOML_API value<double>;
template class TOML_API value<bool>;
template class TOML_API value<date>;
template class TOML_API value<time>;
template class TOML_API value<date_time>;
// node_view
template class TOML_API node_view<node>;
template class TOML_API node_view<const node>;
// formatters
namespace impl
{
template class TOML_API formatter<char>;
}
template class TOML_API default_formatter<char>;
template class TOML_API json_formatter<char>;
// various ostream operators
template TOML_API std::ostream& operator << (std::ostream&, const source_position&);
template TOML_API std::ostream& operator << (std::ostream&, const source_region&);
template TOML_API std::ostream& operator << (std::ostream&, const date&);
template TOML_API std::ostream& operator << (std::ostream&, const time&);
template TOML_API std::ostream& operator << (std::ostream&, const time_offset&);
template TOML_API std::ostream& operator << (std::ostream&, const date_time&);
template TOML_API std::ostream& operator << (std::ostream&, const value<toml::string>&);
template TOML_API std::ostream& operator << (std::ostream&, const value<int64_t>&);
template TOML_API std::ostream& operator << (std::ostream&, const value<double>&);
template TOML_API std::ostream& operator << (std::ostream&, const value<bool>&);
template TOML_API std::ostream& operator << (std::ostream&, const value<toml::date>&);
template TOML_API std::ostream& operator << (std::ostream&, const value<toml::time>&);
template TOML_API std::ostream& operator << (std::ostream&, const value<toml::date_time>&);
template TOML_API std::ostream& operator << (std::ostream&, default_formatter<char>&);
template TOML_API std::ostream& operator << (std::ostream&, default_formatter<char>&&);
template TOML_API std::ostream& operator << (std::ostream&, json_formatter<char>&);
template TOML_API std::ostream& operator << (std::ostream&, json_formatter<char>&&);
template TOML_API std::ostream& operator << (std::ostream&, const table&);
template TOML_API std::ostream& operator << (std::ostream&, const array&);
template TOML_API std::ostream& operator << (std::ostream&, const node_view<node>&);
template TOML_API std::ostream& operator << (std::ostream&, const node_view<const node>&);
template TOML_API std::ostream& operator << (std::ostream&, node_type);
// print_to_stream() machinery
namespace impl
{
template TOML_API void print_floating_point_to_stream(float, std::ostream&, bool);
template TOML_API void print_floating_point_to_stream(double, std::ostream&, bool);
}
// parser machinery
#if TOML_PARSER
// parse error ostream
template TOML_API std::ostream& operator << (std::ostream&, const parse_error&);
// parse() and parse_file()
#if TOML_EXCEPTIONS
TOML_ABI_NAMESPACE_START(parse_ex)
#else
TOML_ABI_NAMESPACE_START(parse_noex)
#endif
template TOML_API parse_result parse(std::istream&, std::string_view) TOML_MAY_THROW;
template TOML_API parse_result parse(std::istream&, std::string&&) TOML_MAY_THROW;
template TOML_API parse_result parse_file(std::string_view) TOML_MAY_THROW;
#ifdef __cpp_lib_char8_t
template TOML_API parse_result parse_file(std::u8string_view) TOML_MAY_THROW;
#endif
TOML_ABI_NAMESPACE_END // TOML_EXCEPTIONS
#endif // TOML_PARSER
}
#pragma endregion
//--------------------------------------------------------------------------------------- ↑ toml_instantiations.hpp --
#endif // !TOML_ALL_INLINE
#endif // TOML_IMPLEMENTATION
// macro hygiene
#if TOML_UNDEF_MACROS
#undef TOML_INT_CHARCONV
#undef TOML_FLOAT_CHARCONV
#undef TOML_GNU_ATTR
#undef TOML_PUSH_WARNINGS
#undef TOML_DISABLE_SWITCH_WARNINGS
#undef TOML_DISABLE_INIT_WARNINGS
#undef TOML_DISABLE_VTABLE_WARNINGS
#undef TOML_DISABLE_PADDING_WARNINGS
#undef TOML_DISABLE_FLOAT_WARNINGS
#undef TOML_DISABLE_ALL_WARNINGS
#undef TOML_POP_WARNINGS
#undef TOML_ALWAYS_INLINE
#undef TOML_ASSUME
#undef TOML_UNREACHABLE
#undef TOML_INTERFACE
#undef TOML_EMPTY_BASES
#undef TOML_CPP_VERSION
#undef TOML_CPP
#undef TOML_MAY_THROW
#undef TOML_NO_DEFAULT_CASE
#undef TOML_CONSTEVAL
#undef TOML_LIKELY
#undef TOML_UNLIKELY
#undef TOML_NODISCARD_CTOR
#undef TOML_MAKE_VERSION
#undef TOML_LANG_EFFECTIVE_VERSION
#undef TOML_LANG_HIGHER_THAN
#undef TOML_LANG_AT_LEAST
#undef TOML_LANG_UNRELEASED
#undef TOML_STRING_PREFIX_1
#undef TOML_STRING_PREFIX
#undef TOML_UNDEF_MACROS
#undef TOML_RELOPS_REORDERING
#undef TOML_ASYMMETRICAL_EQUALITY_OPS
#undef TOML_ALL_INLINE
#undef TOML_IMPLEMENTATION
#undef TOML_EXTERNAL_LINKAGE
#undef TOML_INTERNAL_LINKAGE
#undef TOML_INTERNAL_NAMESPACE
#undef TOML_COMPILER_EXCEPTIONS
#undef TOML_TRIVIAL_ABI
#undef TOML_ABI_NAMESPACES
#undef TOML_ABI_NAMESPACE_START
#undef TOML_ABI_NAMESPACE_END
#undef TOML_PARSER_TYPENAME
#undef TOML_LAUNDER
#endif
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
#endif // INCLUDE_TOMLPLUSPLUS_H
// clang-format on
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