mirror/tomlplusplus
1
0
Fork 0
mirror of https://github.com/marzer/tomlplusplus.git synced 2024-09-15 15:13:21 +00:00
Code Issues Packages Projects Releases Wiki Activity
0f589ceba8
tomlplusplus/toml.hpp
Mark Gillard 0f589ceba8 added header bookend includes
2021-10-24 13:21:32 +03:00

13265 lines
376 KiB
C++
Raw Blame History

//----------------------------------------------------------------------------------------------------------------------
//
// toml++ v2.6.0
// 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: https://toml.io/en/v1.0.0
// v0.5.0: https://toml.io/en/v0.5.0
// changelog: https://github.com/toml-lang/toml/blob/master/CHANGELOG.md
//
//----------------------------------------------------------------------------------------------------------------------
//
// MIT License
//
// Copyright (c) Mark Gillard <mark.gillard@outlook.com.au>
//
// 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.
//
//----------------------------------------------------------------------------------------------------------------------
#ifndef INCLUDE_TOMLPLUSPLUS_H
#define INCLUDE_TOMLPLUSPLUS_H
//******** impl/preprocessor.h ***************************************************************************************
// clang-format off
#ifndef __cplusplus
#error toml++ is a C++ library.
#endif
#ifdef __INTELLISENSE__
#define TOML_INTELLISENSE 1
#else
#define TOML_INTELLISENSE 0
#endif
#ifdef __clang__
#define TOML_CLANG __clang_major__
#else
#define TOML_CLANG 0
#endif
#ifdef __INTEL_COMPILER
#define TOML_ICC __INTEL_COMPILER
#ifdef __ICL
#define TOML_ICC_CL TOML_ICC
#else
#define TOML_ICC_CL 0
#endif
#else
#define TOML_ICC 0
#define TOML_ICC_CL 0
#endif
#if defined(_MSC_VER) && !TOML_CLANG && !TOML_ICC
#define TOML_MSVC _MSC_VER
#else
#define TOML_MSVC 0
#endif
#if defined(__GNUC__) && !TOML_CLANG && !TOML_ICC
#define TOML_GCC __GNUC__
#else
#define TOML_GCC 0
#endif
#ifdef __has_include
#define TOML_HAS_INCLUDE(header) __has_include(header)
#else
#define TOML_HAS_INCLUDE(header) 0
#endif
#if TOML_CLANG
#define TOML_PUSH_WARNINGS \
_Pragma("clang diagnostic push") \
static_assert(true)
#define TOML_DISABLE_SWITCH_WARNINGS \
_Pragma("clang diagnostic ignored \"-Wswitch\"") \
static_assert(true)
#define TOML_DISABLE_INIT_WARNINGS \
_Pragma("clang diagnostic ignored \"-Wmissing-field-initializers\"") \
static_assert(true)
#define TOML_DISABLE_ARITHMETIC_WARNINGS \
_Pragma("clang diagnostic ignored \"-Wfloat-equal\"") \
_Pragma("clang diagnostic ignored \"-Wdouble-promotion\"") \
_Pragma("clang diagnostic ignored \"-Wchar-subscripts\"") \
_Pragma("clang diagnostic ignored \"-Wshift-sign-overflow\"") \
static_assert(true)
#define TOML_DISABLE_SHADOW_WARNINGS \
_Pragma("clang diagnostic ignored \"-Wshadow\"") \
_Pragma("clang diagnostic ignored \"-Wshadow-field\"") \
static_assert(true)
#define TOML_DISABLE_SPAM_WARNINGS \
_Pragma("clang diagnostic ignored \"-Wweak-vtables\"") \
_Pragma("clang diagnostic ignored \"-Wweak-template-vtables\"") \
_Pragma("clang diagnostic ignored \"-Wpadded\"") \
static_assert(true)
#define TOML_POP_WARNINGS \
_Pragma("clang diagnostic pop") \
static_assert(true)
#define TOML_DISABLE_WARNINGS \
TOML_PUSH_WARNINGS; \
_Pragma("clang diagnostic ignored \"-Weverything\"") \
static_assert(true)
#define TOML_ENABLE_WARNINGS TOML_POP_WARNINGS
#define TOML_ASSUME(cond) __builtin_assume(cond)
#define TOML_UNREACHABLE __builtin_unreachable()
#define TOML_ATTR(...) __attribute__((__VA_ARGS__))
#if defined(_MSC_VER) // msvc compat mode
#ifdef __has_declspec_attribute
#if __has_declspec_attribute(novtable)
#define TOML_ABSTRACT_BASE __declspec(novtable)
#endif
#if __has_declspec_attribute(empty_bases)
#define TOML_EMPTY_BASES __declspec(empty_bases)
#endif
#ifndef TOML_ALWAYS_INLINE
#define TOML_ALWAYS_INLINE __forceinline
#endif
#if __has_declspec_attribute(noinline)
#define TOML_NEVER_INLINE __declspec(noinline)
#endif
#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_NEVER_INLINE) && __has_attribute(noinline)
#define TOML_NEVER_INLINE __attribute__((__noinline__))
#endif
#if !defined(TOML_TRIVIAL_ABI) && __has_attribute(trivial_abi)
#define TOML_TRIVIAL_ABI __attribute__((__trivial_abi__))
#endif
#endif
#define TOML_LIKELY(...) (__builtin_expect(!!(__VA_ARGS__), 1) )
#define TOML_UNLIKELY(...) (__builtin_expect(!!(__VA_ARGS__), 0) )
#define TOML_SIMPLE_STATIC_ASSERT_MESSAGES 1
#endif // clang
#if TOML_MSVC || TOML_ICC_CL
#define TOML_CPP_VERSION _MSVC_LANG
#if TOML_MSVC // !intel-cl
#define TOML_PUSH_WARNINGS \
__pragma(warning(push)) \
static_assert(true)
#if TOML_HAS_INCLUDE(<CodeAnalysis\Warnings.h>)
#pragma warning(push, 0)
#include <CodeAnalysis\Warnings.h>
#pragma warning(pop)
#define TOML_DISABLE_CODE_ANALYSIS_WARNINGS \
__pragma(warning(disable: ALL_CODE_ANALYSIS_WARNINGS)) \
static_assert(true)
#else
#define TOML_DISABLE_CODE_ANALYSIS_WARNINGS
static_assert(true)
#endif
#define TOML_DISABLE_SWITCH_WARNINGS \
__pragma(warning(disable: 4061)) /* enumerator 'identifier' is not explicitly handled by a case label */ \
__pragma(warning(disable: 4062)) /* enumerator 'identifier' is not handled */ \
__pragma(warning(disable: 4063)) \
__pragma(warning(disable: 26819)) \
static_assert(true)
#define TOML_DISABLE_SPAM_WARNINGS \
__pragma(warning(disable: 4127)) /* conditional expr is constant */ \
__pragma(warning(disable: 4324)) /* structure was padded due to alignment specifier */ \
__pragma(warning(disable: 4348)) \
__pragma(warning(disable: 4464)) /* relative include path contains '..' */ \
__pragma(warning(disable: 4505)) /* unreferenced local function removed */ \
__pragma(warning(disable: 4514)) /* unreferenced inline function has been removed */ \
__pragma(warning(disable: 4582)) /* constructor is not implicitly called */ \
__pragma(warning(disable: 4623)) /* default constructor was implicitly defined as deleted */ \
__pragma(warning(disable: 4625)) /* copy constructor was implicitly defined as deleted */ \
__pragma(warning(disable: 4626)) /* assignment operator was implicitly defined as deleted */ \
__pragma(warning(disable: 4710)) /* function not inlined */ \
__pragma(warning(disable: 4711)) /* function selected for automatic expansion */ \
__pragma(warning(disable: 4820)) /* N bytes padding added */ \
__pragma(warning(disable: 4946)) /* reinterpret_cast used between related classes */ \
__pragma(warning(disable: 5026)) /* move constructor was implicitly defined as deleted */ \
__pragma(warning(disable: 5027)) /* move assignment operator was implicitly defined as deleted */ \
__pragma(warning(disable: 5039)) /* potentially throwing function passed to 'extern "C"' function */ \
__pragma(warning(disable: 5045)) /* Compiler will insert Spectre mitigation */ \
__pragma(warning(disable: 26451)) \
__pragma(warning(disable: 26490)) \
__pragma(warning(disable: 26495)) \
__pragma(warning(disable: 26812)) \
__pragma(warning(disable: 26819)) \
static_assert(true)
#define TOML_DISABLE_ARITHMETIC_WARNINGS \
__pragma(warning(disable: 4365)) /* argument signed/unsigned mismatch */ \
__pragma(warning(disable: 4738)) /* storing 32-bit float result in memory */ \
__pragma(warning(disable: 5219)) /* implicit conversion from integral to float */ \
static_assert(true)
#define TOML_POP_WARNINGS \
__pragma(warning(pop)) \
static_assert(true)
#define TOML_DISABLE_WARNINGS \
__pragma(warning(push, 0)) \
__pragma(warning(disable: 4348)) \
__pragma(warning(disable: 4668)) \
__pragma(warning(disable: 5105)) \
TOML_DISABLE_CODE_ANALYSIS_WARNINGS;\
TOML_DISABLE_SWITCH_WARNINGS; \
TOML_DISABLE_SPAM_WARNINGS; \
TOML_DISABLE_ARITHMETIC_WARNINGS; \
static_assert(true)
#define TOML_ENABLE_WARNINGS TOML_POP_WARNINGS
#endif
#ifndef TOML_ALWAYS_INLINE
#define TOML_ALWAYS_INLINE __forceinline
#endif
#define TOML_NEVER_INLINE __declspec(noinline)
#define TOML_ASSUME(cond) __assume(cond)
#define TOML_UNREACHABLE __assume(0)
#define TOML_ABSTRACT_BASE __declspec(novtable)
#define TOML_EMPTY_BASES __declspec(empty_bases)
#ifdef _CPPUNWIND
#define TOML_COMPILER_EXCEPTIONS 1
#else
#define TOML_COMPILER_EXCEPTIONS 0
#endif
#endif // msvc
#if TOML_ICC
#define TOML_PUSH_WARNINGS \
__pragma(warning(push)) \
static_assert(true)
#define TOML_DISABLE_SPAM_WARNINGS \
__pragma(warning(disable: 82)) /* storage class is not first */ \
__pragma(warning(disable: 111)) /* statement unreachable (false-positive) */ \
__pragma(warning(disable: 869)) /* unreferenced parameter */ \
__pragma(warning(disable: 1011)) /* missing return (false-positive) */ \
__pragma(warning(disable: 2261)) /* assume expr side-effects discarded */ \
static_assert(true)
#define TOML_POP_WARNINGS \
__pragma(warning(pop)) \
static_assert(true)
#define TOML_DISABLE_WARNINGS \
__pragma(warning(push, 0)) \
static_assert(true)
#define TOML_ENABLE_WARNINGS \
TOML_POP_WARNINGS
#endif // icc
#if TOML_GCC
#define TOML_PUSH_WARNINGS \
_Pragma("GCC diagnostic push") \
static_assert(true)
#define TOML_DISABLE_SWITCH_WARNINGS \
_Pragma("GCC diagnostic ignored \"-Wswitch\"") \
_Pragma("GCC diagnostic ignored \"-Wswitch-enum\"") \
_Pragma("GCC diagnostic ignored \"-Wswitch-default\"") \
static_assert(true)
#define TOML_DISABLE_INIT_WARNINGS \
_Pragma("GCC diagnostic ignored \"-Wmissing-field-initializers\"") \
_Pragma("GCC diagnostic ignored \"-Wmaybe-uninitialized\"") \
_Pragma("GCC diagnostic ignored \"-Wuninitialized\"") \
static_assert(true)
#define TOML_DISABLE_ARITHMETIC_WARNINGS \
_Pragma("GCC diagnostic ignored \"-Wfloat-equal\"") \
_Pragma("GCC diagnostic ignored \"-Wsign-conversion\"") \
_Pragma("GCC diagnostic ignored \"-Wchar-subscripts\"") \
static_assert(true)
#define TOML_DISABLE_SHADOW_WARNINGS \
_Pragma("GCC diagnostic ignored \"-Wshadow\"") \
static_assert(true)
#define TOML_DISABLE_SPAM_WARNINGS \
_Pragma("GCC diagnostic ignored \"-Wpadded\"") \
_Pragma("GCC diagnostic ignored \"-Wcast-align\"") \
_Pragma("GCC diagnostic ignored \"-Wcomment\"") \
_Pragma("GCC diagnostic ignored \"-Wtype-limits\"") \
_Pragma("GCC diagnostic ignored \"-Wuseless-cast\"") \
_Pragma("GCC diagnostic ignored \"-Wsuggest-attribute=const\"") \
_Pragma("GCC diagnostic ignored \"-Wsuggest-attribute=pure\"") \
static_assert(true)
#define TOML_POP_WARNINGS \
_Pragma("GCC diagnostic pop") \
static_assert(true)
#define TOML_DISABLE_WARNINGS \
TOML_PUSH_WARNINGS; \
_Pragma("GCC diagnostic ignored \"-Wall\"") \
_Pragma("GCC diagnostic ignored \"-Wextra\"") \
_Pragma("GCC diagnostic ignored \"-Wpedantic\"") \
TOML_DISABLE_SWITCH_WARNINGS; \
TOML_DISABLE_INIT_WARNINGS; \
TOML_DISABLE_ARITHMETIC_WARNINGS; \
TOML_DISABLE_SHADOW_WARNINGS; \
TOML_DISABLE_SPAM_WARNINGS; \
static_assert(true)
#define TOML_ENABLE_WARNINGS \
TOML_POP_WARNINGS
#define TOML_ATTR(...) __attribute__((__VA_ARGS__))
#ifndef TOML_ALWAYS_INLINE
#define TOML_ALWAYS_INLINE __attribute__((__always_inline__)) inline
#endif
#define TOML_NEVER_INLINE __attribute__((__noinline__))
#define TOML_UNREACHABLE __builtin_unreachable()
#define TOML_LIKELY(...) (__builtin_expect(!!(__VA_ARGS__), 1) )
#define TOML_UNLIKELY(...) (__builtin_expect(!!(__VA_ARGS__), 0) )
#endif
#ifdef TOML_CONFIG_HEADER
#include TOML_CONFIG_HEADER
#endif
#ifdef DOXYGEN
#define TOML_HEADER_ONLY 0
#define TOML_WINDOWS_COMPAT 1
#endif
#if defined(TOML_ALL_INLINE) && !defined(TOML_HEADER_ONLY)
#define TOML_HEADER_ONLY TOML_ALL_INLINE
#endif
#if !defined(TOML_HEADER_ONLY) || (defined(TOML_HEADER_ONLY) && TOML_HEADER_ONLY) || TOML_INTELLISENSE
#undef TOML_HEADER_ONLY
#define TOML_HEADER_ONLY 1
#endif
#if defined(TOML_IMPLEMENTATION) || TOML_HEADER_ONLY
#undef TOML_IMPLEMENTATION
#define TOML_IMPLEMENTATION 1
#else
#define TOML_IMPLEMENTATION 0
#endif
#ifndef TOML_API
#define TOML_API
#endif
#ifndef TOML_UNRELEASED_FEATURES
#if TOML_INTELLISENSE
#define TOML_UNRELEASED_FEATURES 1
#else
#define TOML_UNRELEASED_FEATURES 0
#endif
#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_MAX_NESTED_VALUES
#define TOML_MAX_NESTED_VALUES 256
// this refers to the depth of nested values, e.g. inline tables and arrays.
// 256 is crazy high! if you're hitting this limit with real input, TOML is probably the wrong tool for the job...
#endif
#ifndef TOML_WINDOWS_COMPAT
#define TOML_WINDOWS_COMPAT 1
#endif
#ifndef _WIN32
#undef TOML_WINDOWS_COMPAT
#define TOML_WINDOWS_COMPAT 0
#endif
#ifndef TOML_INCLUDE_WINDOWS_H
#define TOML_INCLUDE_WINDOWS_H 0
#endif
#ifdef TOML_OPTIONAL_TYPE
#define TOML_HAS_CUSTOM_OPTIONAL_TYPE 1
#else
#define TOML_HAS_CUSTOM_OPTIONAL_TYPE 0
#endif
#ifdef TOML_CHAR_8_STRINGS
#if TOML_CHAR_8_STRINGS
#error TOML_CHAR_8_STRINGS was removed in toml++ 2.0.0; all value setters and getters now work with char8_t strings implicitly.
#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/ToruNiina/toml11
#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
#undef TOML_CPP_VERSION
#ifndef TOML_COMPILER_EXCEPTIONS
#if defined(__EXCEPTIONS) || defined(__cpp_exceptions)
#define TOML_COMPILER_EXCEPTIONS 1
#else
#define TOML_COMPILER_EXCEPTIONS 0
#endif
#endif
#if TOML_COMPILER_EXCEPTIONS
#if !defined(TOML_EXCEPTIONS) || (defined(TOML_EXCEPTIONS) && TOML_EXCEPTIONS)
#undef 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 defined(DOXYGEN) || TOML_EXCEPTIONS
#define TOML_MAY_THROW
#else
#define TOML_MAY_THROW noexcept
#endif
#if TOML_GCC || TOML_CLANG || (TOML_ICC && !TOML_ICC_CL)
// not supported by any version of GCC or Clang as of 26/11/2020
// not supported by any version of ICC on Linux as of 11/01/2021
#define TOML_FLOAT_CHARCONV 0
#endif
#if defined(__EMSCRIPTEN__) || defined(__APPLE__)
// causes link errors on emscripten
// causes Mac OS SDK version errors on some versions of Apple Clang
#define TOML_INT_CHARCONV 0
#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) && !TOML_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 static_assert(true)
#endif
#ifndef TOML_DISABLE_CODE_ANALYSIS_WARNINGS
#define TOML_DISABLE_CODE_ANALYSIS_WARNINGS static_assert(true)
#endif
#ifndef TOML_DISABLE_SWITCH_WARNINGS
#define TOML_DISABLE_SWITCH_WARNINGS static_assert(true)
#endif
#ifndef TOML_DISABLE_INIT_WARNINGS
#define TOML_DISABLE_INIT_WARNINGS static_assert(true)
#endif
#ifndef TOML_DISABLE_SPAM_WARNINGS
#define TOML_DISABLE_SPAM_WARNINGS static_assert(true)
#endif
#ifndef TOML_DISABLE_ARITHMETIC_WARNINGS
#define TOML_DISABLE_ARITHMETIC_WARNINGS static_assert(true)
#endif
#ifndef TOML_DISABLE_SHADOW_WARNINGS
#define TOML_DISABLE_SHADOW_WARNINGS static_assert(true)
#endif
#ifndef TOML_POP_WARNINGS
#define TOML_POP_WARNINGS static_assert(true)
#endif
#ifndef TOML_DISABLE_WARNINGS
#define TOML_DISABLE_WARNINGS static_assert(true)
#endif
#ifndef TOML_ENABLE_WARNINGS
#define TOML_ENABLE_WARNINGS static_assert(true)
#endif
#ifndef TOML_ATTR
#define TOML_ATTR(...)
#endif
#ifndef TOML_ABSTRACT_BASE
#define TOML_ABSTRACT_BASE
#endif
#ifndef TOML_EMPTY_BASES
#define TOML_EMPTY_BASES
#endif
#ifndef TOML_ALWAYS_INLINE
#define TOML_ALWAYS_INLINE inline
#endif
#ifndef TOML_NEVER_INLINE
#define TOML_NEVER_INLINE
#endif
#ifndef TOML_ASSUME
#define TOML_ASSUME(cond) (void)0
#endif
#ifndef TOML_UNREACHABLE
#define TOML_UNREACHABLE TOML_ASSERT(false)
#endif
#if defined(__cpp_consteval) && __cpp_consteval >= 201811 && !defined(_MSC_VER)
// https://developercommunity.visualstudio.com/t/Erroneous-C7595-error-with-consteval-in/1404234
#define TOML_CONSTEVAL consteval
#else
#define TOML_CONSTEVAL constexpr
#endif
#ifdef __has_cpp_attribute
#define TOML_HAS_ATTR(...) __has_cpp_attribute(__VA_ARGS__)
#else
#define TOML_HAS_ATTR(...) 0
#endif
#if !defined(TOML_LIKELY) && TOML_HAS_ATTR(likely) >= 201803
#define TOML_LIKELY(...) (__VA_ARGS__) [[likely]]
#endif
#ifndef TOML_LIKELY
#define TOML_LIKELY(...) (__VA_ARGS__)
#endif
#if !defined(TOML_UNLIKELY) && TOML_HAS_ATTR(unlikely) >= 201803
#define TOML_UNLIKELY(...) (__VA_ARGS__) [[unlikely]]
#endif
#ifndef TOML_UNLIKELY
#define TOML_UNLIKELY(...) (__VA_ARGS__)
#endif
#if TOML_HAS_ATTR(nodiscard)
#define TOML_NODISCARD [[nodiscard]]
#else
#define TOML_NODISCARD
#endif
#if TOML_HAS_ATTR(nodiscard) >= 201907
#define TOML_NODISCARD_CTOR [[nodiscard]]
#else
#define TOML_NODISCARD_CTOR
#endif
#ifndef TOML_TRIVIAL_ABI
#define TOML_TRIVIAL_ABI
#endif
#define TOML_ASYMMETRICAL_EQUALITY_OPS(LHS, RHS, ...) \
__VA_ARGS__ TOML_NODISCARD friend bool operator == (RHS rhs, LHS lhs) noexcept { return lhs == rhs; } \
__VA_ARGS__ TOML_NODISCARD friend bool operator != (LHS lhs, RHS rhs) noexcept { return !(lhs == rhs); } \
__VA_ARGS__ TOML_NODISCARD friend bool operator != (RHS rhs, LHS lhs) noexcept { return !(lhs == rhs); } \
static_assert(true)
#ifndef TOML_SIMPLE_STATIC_ASSERT_MESSAGES
#define TOML_SIMPLE_STATIC_ASSERT_MESSAGES 0
#endif
#define TOML_CONCAT_1(x, y) x##y
#define TOML_CONCAT(x, y) TOML_CONCAT_1(x, y)
#define TOML_EVAL_BOOL_1(T, F) T
#define TOML_EVAL_BOOL_0(T, F) F
#if defined(__aarch64__) || defined(__ARM_ARCH_ISA_A64) || defined(_M_ARM64) || defined(__ARM_64BIT_STATE) \
|| defined(__arm__) || defined(_M_ARM) || defined(__ARM_32BIT_STATE)
#define TOML_ARM 1
#else
#define TOML_ARM 0
#endif
#define TOML_MAKE_FLAGS_(name, op) \
TOML_NODISCARD \
TOML_ALWAYS_INLINE \
TOML_ATTR(const) \
constexpr name operator op(name lhs, name rhs) noexcept \
{ \
using under = std::underlying_type_t<name>; \
return static_cast<name>(static_cast<under>(lhs) op static_cast<under>(rhs)); \
} \
constexpr name& operator TOML_CONCAT(op, =)(name & lhs, name rhs) noexcept \
{ \
return lhs = (lhs op rhs); \
} \
static_assert(true, "")
#define TOML_MAKE_FLAGS(name) \
TOML_MAKE_FLAGS_(name, &); \
TOML_MAKE_FLAGS_(name, |); \
TOML_MAKE_FLAGS_(name, ^); \
TOML_NODISCARD \
TOML_ALWAYS_INLINE \
TOML_ATTR(const) \
constexpr name operator~(name val) noexcept \
{ \
using under = std::underlying_type_t<name>; \
return static_cast<name>(~static_cast<under>(val)); \
} \
TOML_NODISCARD \
TOML_ALWAYS_INLINE \
TOML_ATTR(const) \
constexpr bool operator!(name val) noexcept \
{ \
using under = std::underlying_type_t<name>; \
return !static_cast<under>(val); \
} \
static_assert(true, "")
#ifndef TOML_LIFETIME_HOOKS
#define TOML_LIFETIME_HOOKS 0
#endif
#if !defined(__POXY__) && !defined(POXY_IMPLEMENTATION_DETAIL)
#define POXY_IMPLEMENTATION_DETAIL(...) __VA_ARGS__
#endif
// SFINAE
#if defined(__cpp_concepts) && __cpp_concepts >= 201907
#define TOML_REQUIRES(...) requires(__VA_ARGS__)
#else
#define TOML_REQUIRES(...)
#endif
#define TOML_ENABLE_IF(...) , typename std::enable_if<(__VA_ARGS__), int>::type = 0
#define TOML_CONSTRAINED_TEMPLATE(condition, ...) template <__VA_ARGS__ TOML_ENABLE_IF(condition)> TOML_REQUIRES(condition)
#ifndef TOML_CONSTRAINED_TEMPLATE
#define TOML_CONSTRAINED_TEMPLATE(condition, ...) template <__VA_ARGS__>
#endif
#ifdef __FLT16_MANT_DIG__
#if __FLT_RADIX__ == 2 \
&& __FLT16_MANT_DIG__ == 11 \
&& __FLT16_DIG__ == 3 \
&& __FLT16_MIN_EXP__ == -13 \
&& __FLT16_MIN_10_EXP__ == -4 \
&& __FLT16_MAX_EXP__ == 16 \
&& __FLT16_MAX_10_EXP__ == 4
#if TOML_ARM && (TOML_GCC || TOML_CLANG)
#define TOML_FP16 __fp16
#endif
#if TOML_ARM && TOML_CLANG // not present in g++
#define TOML_FLOAT16 _Float16
#endif
#endif
#endif
#if defined(__SIZEOF_FLOAT128__) \
&& defined(__FLT128_MANT_DIG__) \
&& defined(__LDBL_MANT_DIG__) \
&& __FLT128_MANT_DIG__ > __LDBL_MANT_DIG__
#define TOML_FLOAT128 __float128
#endif
#ifdef __SIZEOF_INT128__
#define TOML_INT128 __int128_t
#define TOML_UINT128 __uint128_t
#endif
#define TOML_LIB_MAJOR 2
#define TOML_LIB_MINOR 6
#define TOML_LIB_PATCH 0
#define TOML_LANG_MAJOR 1
#define TOML_LANG_MINOR 0
#define TOML_LANG_PATCH 0
#define TOML_LIB_SINGLE_HEADER 1
#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)
#ifndef TOML_ABI_NAMESPACES
#ifdef DOXYGEN
#define TOML_ABI_NAMESPACES 0
#else
#define TOML_ABI_NAMESPACES 1
#endif
#endif
#if TOML_ABI_NAMESPACES
#define TOML_NAMESPACE_START namespace toml { inline namespace TOML_CONCAT(v, TOML_LIB_MAJOR)
#define TOML_NAMESPACE_END } static_assert(true)
#define TOML_NAMESPACE ::toml::TOML_CONCAT(v, TOML_LIB_MAJOR)
#define TOML_ABI_NAMESPACE_START(name) inline namespace name { static_assert(true)
#define TOML_ABI_NAMESPACE_BOOL(cond, T, F) TOML_ABI_NAMESPACE_START(TOML_CONCAT(TOML_EVAL_BOOL_, cond)(T, F))
#define TOML_ABI_NAMESPACE_END } static_assert(true)
#else
#define TOML_NAMESPACE_START namespace toml
#define TOML_NAMESPACE_END static_assert(true)
#define TOML_NAMESPACE toml
#define TOML_ABI_NAMESPACE_START(...) static_assert(true)
#define TOML_ABI_NAMESPACE_BOOL(...) static_assert(true)
#define TOML_ABI_NAMESPACE_END static_assert(true)
#endif
#define TOML_IMPL_NAMESPACE_START TOML_NAMESPACE_START { namespace impl
#define TOML_IMPL_NAMESPACE_END } TOML_NAMESPACE_END
#if TOML_HEADER_ONLY
#define TOML_ANON_NAMESPACE_START TOML_IMPL_NAMESPACE_START
#define TOML_ANON_NAMESPACE_END TOML_IMPL_NAMESPACE_END
#define TOML_ANON_NAMESPACE TOML_NAMESPACE::impl
#define TOML_USING_ANON_NAMESPACE using namespace TOML_ANON_NAMESPACE
#define TOML_EXTERNAL_LINKAGE inline
#define TOML_INTERNAL_LINKAGE inline
#else
#define TOML_ANON_NAMESPACE_START namespace
#define TOML_ANON_NAMESPACE_END static_assert(true)
#define TOML_ANON_NAMESPACE
#define TOML_USING_ANON_NAMESPACE static_cast<void>(0)
#define TOML_EXTERNAL_LINKAGE
#define TOML_INTERNAL_LINKAGE static
#endif
TOML_DISABLE_WARNINGS;
#ifndef TOML_ASSERT
#if defined(NDEBUG) || !defined(_DEBUG)
#define TOML_ASSERT(expr) static_cast<void>(0)
#else
#ifndef assert
#include <cassert>
#endif
#define TOML_ASSERT(expr) assert(expr)
#endif
#endif
TOML_ENABLE_WARNINGS;
#if TOML_SIMPLE_STATIC_ASSERT_MESSAGES
#define TOML_SA_NEWLINE " "
#define TOML_SA_LIST_SEP ", "
#define TOML_SA_LIST_BEG " ("
#define TOML_SA_LIST_END ")"
#define TOML_SA_LIST_NEW " "
#define TOML_SA_LIST_NXT ", "
#else
#define TOML_SA_NEWLINE "\n| "
#define TOML_SA_LIST_SEP TOML_SA_NEWLINE " - "
#define TOML_SA_LIST_BEG TOML_SA_LIST_SEP
#define TOML_SA_LIST_END
#define TOML_SA_LIST_NEW TOML_SA_NEWLINE TOML_SA_NEWLINE
#define TOML_SA_LIST_NXT TOML_SA_LIST_NEW
#endif
#define TOML_SA_NATIVE_VALUE_TYPE_LIST \
TOML_SA_LIST_BEG "std::string" \
TOML_SA_LIST_SEP "int64_t" \
TOML_SA_LIST_SEP "double" \
TOML_SA_LIST_SEP "bool" \
TOML_SA_LIST_SEP "toml::date" \
TOML_SA_LIST_SEP "toml::time" \
TOML_SA_LIST_SEP "toml::date_time" \
TOML_SA_LIST_END
#define TOML_SA_NODE_TYPE_LIST \
TOML_SA_LIST_BEG "toml::table" \
TOML_SA_LIST_SEP "toml::array" \
TOML_SA_LIST_SEP "toml::value<std::string>" \
TOML_SA_LIST_SEP "toml::value<int64_t>" \
TOML_SA_LIST_SEP "toml::value<double>" \
TOML_SA_LIST_SEP "toml::value<bool>" \
TOML_SA_LIST_SEP "toml::value<toml::date>" \
TOML_SA_LIST_SEP "toml::value<toml::time>" \
TOML_SA_LIST_SEP "toml::value<toml::date_time>" \
TOML_SA_LIST_END
#define TOML_SA_UNWRAPPED_NODE_TYPE_LIST \
TOML_SA_LIST_NEW "A native TOML value type" \
TOML_SA_NATIVE_VALUE_TYPE_LIST \
\
TOML_SA_LIST_NXT "A TOML node type" \
TOML_SA_NODE_TYPE_LIST
// clang-format on
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
//******** impl/common.h *********************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_DISABLE_WARNINGS;
#include <cstdint>
#include <cstddef>
#include <cstring>
#include <cfloat>
#include <climits>
#include <cmath>
#include <iterator>
#include <limits>
#include <memory>
#include <string_view>
#include <string>
#include <vector>
#include <map>
#include <iosfwd>
#include <new>
#if !TOML_HAS_CUSTOM_OPTIONAL_TYPE
#include <optional>
#endif
#if TOML_EXCEPTIONS
#include <stdexcept>
#endif
#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_ENABLE_WARNINGS;
#if defined(__cpp_lib_launder) && __cpp_lib_launder >= 201606
#define TOML_LAUNDER(x) std::launder(x)
#else
#define TOML_LAUNDER(x) x
#endif
#if defined(DOXYGEN) \
|| (defined(__cpp_char8_t) && __cpp_char8_t >= 201811 && defined(__cpp_lib_char8_t) \
&& __cpp_lib_char8_t >= 201907)
#define TOML_HAS_CHAR8 1
#else
#define TOML_HAS_CHAR8 0
#endif
#ifndef TOML_DISABLE_ENVIRONMENT_CHECKS
#define TOML_ENV_MESSAGE \
"If you're seeing this error it's because you're building toml++ for an environment that doesn't conform to " \
"one of the 'ground truths' assumed by the library. Essentially this just means that I don't have the " \
"resources to test on more platforms, but I wish I did! You can try disabling the checks by defining " \
"TOML_DISABLE_ENVIRONMENT_CHECKS, but your mileage may vary. Please consider filing an issue at " \
"https://github.com/marzer/tomlplusplus/issues to help me improve support for your target environment. " \
"Thanks!"
static_assert(CHAR_BIT == 8, TOML_ENV_MESSAGE);
static_assert(FLT_RADIX == 2, TOML_ENV_MESSAGE);
static_assert('A' == 65, TOML_ENV_MESSAGE);
static_assert(sizeof(double) == 8, TOML_ENV_MESSAGE);
static_assert(std::numeric_limits<double>::is_iec559, TOML_ENV_MESSAGE);
static_assert(std::numeric_limits<double>::digits == 53, TOML_ENV_MESSAGE);
static_assert(std::numeric_limits<double>::digits10 == 15, TOML_ENV_MESSAGE);
#undef TOML_ENV_MESSAGE
#endif // !TOML_DISABLE_ENVIRONMENT_CHECKS
// undocumented forward declarations are hidden from doxygen because they fuck it up =/
namespace toml // non-abi namespace; this is not an error
{
using namespace std::string_literals;
using namespace std::string_view_literals;
using ::std::size_t;
using ::std::intptr_t;
using ::std::uintptr_t;
using ::std::ptrdiff_t;
using ::std::nullptr_t;
using ::std::int8_t;
using ::std::int16_t;
using ::std::int32_t;
using ::std::int64_t;
using ::std::uint8_t;
using ::std::uint16_t;
using ::std::uint32_t;
using ::std::uint64_t;
using ::std::uint_least32_t;
using ::std::uint_least64_t;
// legacy typedefs
using string_char = char;
using string = std::string;
using string_view = std::string_view;
}
TOML_NAMESPACE_START // abi namespace
{
struct date;
struct time;
struct time_offset;
TOML_ABI_NAMESPACE_BOOL(TOML_HAS_CUSTOM_OPTIONAL_TYPE, custopt, stdopt);
struct date_time;
TOML_ABI_NAMESPACE_END;
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;
TOML_NODISCARD
TOML_API
bool operator==(const array& lhs, const array& rhs) noexcept;
TOML_NODISCARD
TOML_API
bool operator!=(const array& lhs, const array& rhs) noexcept;
TOML_NODISCARD
TOML_API
bool operator==(const table& lhs, const table& rhs) noexcept;
TOML_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 array&);
template <typename Char, typename T>
std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>&, const value<T>&);
template <typename Char>
std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>&, const table&);
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 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, typename T>
inline std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>&, const node_view<T>&);
TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, ex, noex);
#if TOML_EXCEPTIONS
using parse_result = table;
#else
class parse_result;
#endif
TOML_ABI_NAMESPACE_END; // TOML_EXCEPTIONS
namespace impl
{
template <typename T>
using string_map = std::map<std::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>
inline constexpr bool is_one_of = (false || ... || std::is_same_v<T, U>);
template <typename T>
inline constexpr bool is_cvref = std::is_reference_v<T> || std::is_const_v<T> || std::is_volatile_v<T>;
template <typename T>
inline constexpr bool is_wide_string =
is_one_of<std::decay_t<T>, const wchar_t*, wchar_t*, std::wstring_view, std::wstring>;
template <typename T>
inline constexpr bool dependent_false = false;
#if TOML_WINDOWS_COMPAT
TOML_NODISCARD
TOML_API
std::string narrow(std::wstring_view) noexcept;
TOML_NODISCARD
TOML_API
std::wstring widen(std::string_view) noexcept;
#if TOML_HAS_CHAR8
TOML_NODISCARD
TOML_API
std::wstring widen(std::u8string_view) noexcept;
#endif
#endif // TOML_WINDOWS_COMPAT
TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, ex, noex);
class parser;
TOML_ABI_NAMESPACE_END; // TOML_EXCEPTIONS
#if TOML_ABI_NAMESPACES
#if TOML_EXCEPTIONS
#define TOML_PARSER_TYPENAME TOML_NAMESPACE::impl::ex::parser
#else
#define TOML_PARSER_TYPENAME TOML_NAMESPACE::impl::noex::parser
#endif
#else
#define TOML_PARSER_TYPENAME TOML_NAMESPACE::impl::parser
#endif
}
}
TOML_NAMESPACE_END;
namespace toml
{
}
TOML_NAMESPACE_START // abi namespace
{
inline namespace literals
{
}
#if TOML_HAS_CUSTOM_OPTIONAL_TYPE
template <typename T>
using optional = TOML_OPTIONAL_TYPE<T>;
#else
template <typename T>
using optional = std::optional<T>;
#endif
enum class node_type : uint8_t
{
none,
table,
array,
string,
integer,
floating_point,
boolean,
date,
time,
date_time
};
using source_path_ptr = std::shared_ptr<const std::string>;
template <typename T>
struct TOML_TRIVIAL_ABI inserter
{
T&& value;
};
template <typename T>
inserter(T &&) -> inserter<T>;
}
TOML_NAMESPACE_END;
TOML_IMPL_NAMESPACE_START
{
// general value traits
// (as they relate to their equivalent native TOML type)
template <typename T>
struct value_traits
{
using native_type = void;
static constexpr bool is_native = false;
static constexpr bool is_losslessly_convertible_to_native = false;
static constexpr bool can_represent_native = false;
static constexpr bool can_partially_represent_native = false;
static constexpr auto type = node_type::none;
};
template <typename T>
struct value_traits<T&> : value_traits<T>
{};
template <typename T>
struct value_traits<T&&> : value_traits<T>
{};
template <typename T>
struct value_traits<T* const> : value_traits<T*>
{};
template <typename T>
struct value_traits<T* volatile> : value_traits<T*>
{};
template <typename T>
struct value_traits<T* const volatile> : value_traits<T*>
{};
// integer value traits
template <typename T>
struct integer_value_limits
{
static constexpr auto min = (std::numeric_limits<T>::min)();
static constexpr auto max = (std::numeric_limits<T>::max)();
};
template <typename T>
struct integer_value_traits_base : integer_value_limits<T>
{
using native_type = int64_t;
static constexpr bool is_native = std::is_same_v<T, native_type>;
static constexpr bool is_signed = static_cast<T>(-1) < T{}; // for impls not specializing std::is_signed<T>
static constexpr auto type = node_type::integer;
static constexpr bool can_partially_represent_native = true;
};
template <typename T>
struct unsigned_integer_value_traits : integer_value_traits_base<T>
{
static constexpr bool is_losslessly_convertible_to_native =
integer_value_limits<T>::max <= 9223372036854775807ULL;
static constexpr bool can_represent_native = false;
};
template <typename T>
struct signed_integer_value_traits : integer_value_traits_base<T>
{
using native_type = int64_t;
static constexpr bool is_losslessly_convertible_to_native =
integer_value_limits<T>::min >= (-9223372036854775807LL - 1LL)
&& integer_value_limits<T>::max <= 9223372036854775807LL;
static constexpr bool can_represent_native = integer_value_limits<T>::min <= (-9223372036854775807LL - 1LL)
&& integer_value_limits<T>::max >= 9223372036854775807LL;
};
template <typename T, bool S = integer_value_traits_base<T>::is_signed>
struct integer_value_traits : signed_integer_value_traits<T>
{};
template <typename T>
struct integer_value_traits<T, false> : unsigned_integer_value_traits<T>
{};
template <>
struct value_traits<signed char> : integer_value_traits<signed char>
{};
template <>
struct value_traits<unsigned char> : integer_value_traits<unsigned char>
{};
template <>
struct value_traits<signed short> : integer_value_traits<signed short>
{};
template <>
struct value_traits<unsigned short> : integer_value_traits<unsigned short>
{};
template <>
struct value_traits<signed int> : integer_value_traits<signed int>
{};
template <>
struct value_traits<unsigned int> : integer_value_traits<unsigned int>
{};
template <>
struct value_traits<signed long> : integer_value_traits<signed long>
{};
template <>
struct value_traits<unsigned long> : integer_value_traits<unsigned long>
{};
template <>
struct value_traits<signed long long> : integer_value_traits<signed long long>
{};
template <>
struct value_traits<unsigned long long> : integer_value_traits<unsigned long long>
{};
#ifdef TOML_INT128
template <>
struct integer_value_limits<TOML_INT128>
{
static constexpr TOML_INT128 max =
static_cast<TOML_INT128>((TOML_UINT128{ 1u } << ((__SIZEOF_INT128__ * CHAR_BIT) - 1)) - 1);
static constexpr TOML_INT128 min = -max - TOML_INT128{ 1 };
};
template <>
struct integer_value_limits<TOML_UINT128>
{
static constexpr TOML_UINT128 min = TOML_UINT128{};
static constexpr TOML_UINT128 max =
(2u * static_cast<TOML_UINT128>(integer_value_limits<TOML_INT128>::max)) + 1u;
};
template <>
struct value_traits<TOML_INT128> : integer_value_traits<TOML_INT128>
{};
template <>
struct value_traits<TOML_UINT128> : integer_value_traits<TOML_UINT128>
{};
#endif
#ifdef TOML_SMALL_INT_TYPE
template <>
struct value_traits<TOML_SMALL_INT_TYPE> : signed_integer_value_traits<TOML_SMALL_INT_TYPE>
{};
#endif
static_assert(value_traits<int64_t>::is_native);
static_assert(value_traits<int64_t>::is_signed);
static_assert(value_traits<int64_t>::is_losslessly_convertible_to_native);
static_assert(value_traits<int64_t>::can_represent_native);
static_assert(value_traits<int64_t>::can_partially_represent_native);
// float value traits
template <typename T>
struct float_value_limits
{
static constexpr bool is_iec559 = std::numeric_limits<T>::is_iec559;
static constexpr int digits = std::numeric_limits<T>::digits;
static constexpr int digits10 = std::numeric_limits<T>::digits10;
};
template <typename T>
struct float_value_traits : float_value_limits<T>
{
using native_type = double;
static constexpr bool is_native = std::is_same_v<T, native_type>;
static constexpr bool is_signed = true;
static constexpr bool is_losslessly_convertible_to_native = float_value_limits<T>::is_iec559
&& float_value_limits<T>::digits <= 53
&& float_value_limits<T>::digits10 <= 15;
static constexpr bool can_represent_native = float_value_limits<T>::is_iec559
&& float_value_limits<T>::digits >= 53 // DBL_MANT_DIG
&& float_value_limits<T>::digits10 >= 15; // DBL_DIG
static constexpr bool can_partially_represent_native // 32-bit float values
= float_value_limits<T>::is_iec559 && float_value_limits<T>::digits >= 24
&& float_value_limits<T>::digits10 >= 6;
static constexpr auto type = node_type::floating_point;
};
template <>
struct value_traits<float> : float_value_traits<float>
{};
template <>
struct value_traits<double> : float_value_traits<double>
{};
template <>
struct value_traits<long double> : float_value_traits<long double>
{};
template <int mant_dig, int dig>
struct extended_float_value_limits
{
static constexpr bool is_iec559 = true;
static constexpr int digits = mant_dig;
static constexpr int digits10 = dig;
};
#ifdef TOML_FP16
template <>
struct float_value_limits<TOML_FP16> : extended_float_value_limits<__FLT16_MANT_DIG__, __FLT16_DIG__>
{};
template <>
struct value_traits<TOML_FP16> : float_value_traits<TOML_FP16>
{};
#endif
#ifdef TOML_FLOAT16
template <>
struct float_value_limits<TOML_FLOAT16> : extended_float_value_limits<__FLT16_MANT_DIG__, __FLT16_DIG__>
{};
template <>
struct value_traits<TOML_FLOAT16> : float_value_traits<TOML_FLOAT16>
{};
#endif
#ifdef TOML_FLOAT128
template <>
struct float_value_limits<TOML_FLOAT128> : extended_float_value_limits<__FLT128_MANT_DIG__, __FLT128_DIG__>
{};
template <>
struct value_traits<TOML_FLOAT128> : float_value_traits<TOML_FLOAT128>
{};
#endif
#ifdef TOML_SMALL_FLOAT_TYPE
template <>
struct value_traits<TOML_SMALL_FLOAT_TYPE> : float_value_traits<TOML_SMALL_FLOAT_TYPE>
{};
#endif
static_assert(value_traits<double>::is_native);
static_assert(value_traits<double>::is_losslessly_convertible_to_native);
static_assert(value_traits<double>::can_represent_native);
static_assert(value_traits<double>::can_partially_represent_native);
// string value traits
template <typename T>
struct string_value_traits
{
using native_type = std::string;
static constexpr bool is_native = std::is_same_v<T, native_type>;
static constexpr bool is_losslessly_convertible_to_native = true;
static constexpr bool can_represent_native =
!std::is_array_v<T> && (!std::is_pointer_v<T> || std::is_const_v<std::remove_pointer_t<T>>);
static constexpr bool can_partially_represent_native = can_represent_native;
static constexpr auto type = node_type::string;
};
template <>
struct value_traits<std::string> : string_value_traits<std::string>
{};
template <>
struct value_traits<std::string_view> : string_value_traits<std::string_view>
{};
template <>
struct value_traits<const char*> : string_value_traits<const char*>
{};
template <size_t N>
struct value_traits<const char[N]> : string_value_traits<const char[N]>
{};
template <>
struct value_traits<char*> : string_value_traits<char*>
{};
template <size_t N>
struct value_traits<char[N]> : string_value_traits<char[N]>
{};
#if TOML_HAS_CHAR8
template <>
struct value_traits<std::u8string> : string_value_traits<std::u8string>
{};
template <>
struct value_traits<std::u8string_view> : string_value_traits<std::u8string_view>
{};
template <>
struct value_traits<const char8_t*> : string_value_traits<const char8_t*>
{};
template <size_t N>
struct value_traits<const char8_t[N]> : string_value_traits<const char8_t[N]>
{};
template <>
struct value_traits<char8_t*> : string_value_traits<char8_t*>
{};
template <size_t N>
struct value_traits<char8_t[N]> : string_value_traits<char8_t[N]>
{};
#endif
#if TOML_WINDOWS_COMPAT
template <typename T>
struct wstring_value_traits
{
using native_type = std::string;
static constexpr bool is_native = false;
static constexpr bool is_losslessly_convertible_to_native = true; // narrow
static constexpr bool can_represent_native = std::is_same_v<T, std::wstring>; // widen
static constexpr bool can_partially_represent_native = can_represent_native;
static constexpr auto type = node_type::string;
};
template <>
struct value_traits<std::wstring> : wstring_value_traits<std::wstring>
{};
template <>
struct value_traits<std::wstring_view> : wstring_value_traits<std::wstring_view>
{};
template <>
struct value_traits<const wchar_t*> : wstring_value_traits<const wchar_t*>
{};
template <size_t N>
struct value_traits<const wchar_t[N]> : wstring_value_traits<const wchar_t[N]>
{};
template <>
struct value_traits<wchar_t*> : wstring_value_traits<wchar_t*>
{};
template <size_t N>
struct value_traits<wchar_t[N]> : wstring_value_traits<wchar_t[N]>
{};
#endif
// other native value traits
template <typename T, node_type NodeType>
struct native_value_traits
{
using native_type = T;
static constexpr bool is_native = true;
static constexpr bool is_losslessly_convertible_to_native = true;
static constexpr bool can_represent_native = true;
static constexpr bool can_partially_represent_native = true;
static constexpr auto type = NodeType;
};
template <>
struct value_traits<bool> : native_value_traits<bool, node_type::boolean>
{};
template <>
struct value_traits<date> : native_value_traits<date, node_type::date>
{};
template <>
struct value_traits<time> : native_value_traits<time, node_type::time>
{};
template <>
struct value_traits<date_time> : native_value_traits<date_time, node_type::date_time>
{};
// native value category queries
template <typename T>
using native_type_of = typename value_traits<T>::native_type;
template <typename T>
inline constexpr bool is_native = value_traits<T>::is_native;
template <typename T>
inline constexpr bool can_represent_native = value_traits<T>::can_represent_native;
template <typename T>
inline constexpr bool can_partially_represent_native = value_traits<T>::can_partially_represent_native;
template <typename T>
inline constexpr bool is_losslessly_convertible_to_native = value_traits<T>::is_losslessly_convertible_to_native;
template <typename T, typename... U>
inline constexpr bool is_natively_one_of = is_one_of<native_type_of<T>, U...>;
// native <=> node conversions
template <typename T>
struct node_wrapper
{
using type = T;
};
template <>
struct node_wrapper<std::string>
{
using type = value<std::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 wrap_node = typename 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 unwrap_node = typename node_unwrapper<T>::type;
template <typename T>
struct node_type_getter
{
static constexpr auto value = value_traits<T>::type;
};
template <>
struct node_type_getter<table>
{
static constexpr auto value = node_type::table;
};
template <>
struct node_type_getter<array>
{
static constexpr auto value = node_type::array;
};
template <>
struct node_type_getter<void>
{
static constexpr auto value = node_type::none;
};
template <typename T>
inline constexpr node_type node_type_of = node_type_getter<unwrap_node<remove_cvref_t<T>>>::value;
}
TOML_IMPL_NAMESPACE_END;
TOML_NAMESPACE_START
{
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_container = is_table<T> || is_array<T>;
template <typename T>
inline constexpr bool is_string = std::is_same_v<impl::wrap_node<impl::remove_cvref_t<T>>, value<std::string>>;
template <typename T>
inline constexpr bool is_integer = std::is_same_v<impl::wrap_node<impl::remove_cvref_t<T>>, value<int64_t>>;
template <typename T>
inline constexpr bool is_floating_point = std::is_same_v<impl::wrap_node<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::wrap_node<impl::remove_cvref_t<T>>, value<bool>>;
template <typename T>
inline constexpr bool is_date = std::is_same_v<impl::wrap_node<impl::remove_cvref_t<T>>, value<date>>;
template <typename T>
inline constexpr bool is_time = std::is_same_v<impl::wrap_node<impl::remove_cvref_t<T>>, value<time>>;
template <typename T>
inline constexpr bool is_date_time = std::is_same_v<impl::wrap_node<impl::remove_cvref_t<T>>, value<date_time>>;
template <typename T>
inline constexpr bool is_chronological = is_date<T> || is_time<T> || is_date_time<T>;
template <typename T>
inline constexpr bool is_value = is_string<T> || is_number<T> || is_boolean<T> || is_chronological<T>;
template <typename T>
inline constexpr bool is_node =
std::is_same_v<toml::node, impl::remove_cvref_t<T>> || std::is_base_of_v<toml::node, impl::remove_cvref_t<T>>;
template <typename T>
inline constexpr bool is_node_view =
impl::is_one_of<impl::remove_cvref_t<T>, node_view<node>, node_view<const node>>;
}
TOML_NAMESPACE_END;
TOML_IMPL_NAMESPACE_START
{
template <typename T>
TOML_NODISCARD
TOML_ATTR(const)
TOML_ALWAYS_INLINE
constexpr std::underlying_type_t<T> unwrap_enum(T val) noexcept
{
return static_cast<std::underlying_type_t<T>>(val);
}
// Q: "why not use the built-in fpclassify?"
// A: Because it gets broken by -ffast-math and friends
enum class fp_class : unsigned
{
ok,
neg_inf,
pos_inf,
nan
};
TOML_NODISCARD
TOML_ATTR(pure)
inline fp_class fpclassify(const double& val) noexcept
{
static_assert(sizeof(uint64_t) == sizeof(double));
static constexpr uint64_t sign = 0b1000000000000000000000000000000000000000000000000000000000000000ull;
static constexpr uint64_t exponent = 0b0111111111110000000000000000000000000000000000000000000000000000ull;
static constexpr uint64_t mantissa = 0b0000000000001111111111111111111111111111111111111111111111111111ull;
uint64_t val_bits;
memcpy(&val_bits, &val, sizeof(val));
if ((val_bits & exponent) != exponent)
return fp_class::ok;
if ((val_bits & mantissa))
return fp_class::nan;
return (val_bits & sign) ? fp_class::neg_inf : fp_class::pos_inf;
}
// 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>
TOML_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;
}
// clang-format off
inline constexpr std::string_view low_character_escape_table[] =
{
"\\u0000"sv,
"\\u0001"sv,
"\\u0002"sv,
"\\u0003"sv,
"\\u0004"sv,
"\\u0005"sv,
"\\u0006"sv,
"\\u0007"sv,
"\\b"sv,
"\\t"sv,
"\\n"sv,
"\\u000B"sv,
"\\f"sv,
"\\r"sv,
"\\u000E"sv,
"\\u000F"sv,
"\\u0010"sv,
"\\u0011"sv,
"\\u0012"sv,
"\\u0013"sv,
"\\u0014"sv,
"\\u0015"sv,
"\\u0016"sv,
"\\u0017"sv,
"\\u0018"sv,
"\\u0019"sv,
"\\u001A"sv,
"\\u001B"sv,
"\\u001C"sv,
"\\u001D"sv,
"\\u001E"sv,
"\\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
};
// clang-format on
template <typename T>
TOML_NODISCARD
TOML_ATTR(returns_nonnull)
auto* make_node_specialized(T && val) noexcept
{
using type = unwrap_node<remove_cvref_t<T>>;
static_assert(!std::is_same_v<type, node>);
static_assert(!is_node_view<type>);
if constexpr (is_one_of<type, array, table>)
{
return new type{ static_cast<T&&>(val) };
}
else if constexpr (is_native<type> && !std::is_same_v<remove_cvref_t<T>, type>)
{
return new value<type>{ static_cast<T&&>(val) };
}
else
{
static_assert(!is_wide_string<T> || TOML_WINDOWS_COMPAT,
"Instantiating values from wide-character strings is only "
"supported on Windows with TOML_WINDOWS_COMPAT enabled.");
static_assert(is_native<type> || is_losslessly_convertible_to_native<type>,
"Value initializers must be (or be promotable to) one of the TOML value types");
using value_type = native_type_of<remove_cvref_t<T>>;
if constexpr (is_wide_string<T>)
{
#if TOML_WINDOWS_COMPAT
return new value<value_type>{ narrow(static_cast<T&&>(val)) };
#else
static_assert(dependent_false<T>, "Evaluated unreachable branch!");
#endif
}
else
return new value<value_type>{ static_cast<T&&>(val) };
}
}
template <typename T>
TOML_NODISCARD
auto* make_node(T && val) noexcept
{
using type = unwrap_node<remove_cvref_t<T>>;
if constexpr (std::is_same_v<type, node> || is_node_view<type>)
{
if constexpr (is_node_view<type>)
{
if (!val)
return static_cast<toml::node*>(nullptr);
}
return static_cast<T&&>(val).visit(
[](auto&& concrete) noexcept {
return static_cast<toml::node*>(make_node_specialized(static_cast<decltype(concrete)&&>(concrete)));
});
}
else
return make_node_specialized(static_cast<T&&>(val));
}
template <typename T>
TOML_NODISCARD
auto* make_node(inserter<T> && val) noexcept
{
return make_node(static_cast<T&&>(val.value));
}
template <typename T, bool = (is_node<T> || is_node_view<T> || is_value<T> || can_partially_represent_native<T>)>
struct inserted_type_of_
{
using type = std::remove_pointer_t<decltype(make_node(std::declval<T>()))>;
};
template <typename T>
struct inserted_type_of_<inserter<T>, false>
{
using type = typename inserted_type_of_<T>::type;
};
template <typename T>
struct inserted_type_of_<T, false>
{
using type = void;
};
}
TOML_IMPL_NAMESPACE_END;
TOML_NAMESPACE_START
{
template <typename T>
using inserted_type_of = typename impl::inserted_type_of_<impl::remove_cvref_t<T>>::type;
TOML_NODISCARD
TOML_ATTR(const)
TOML_ALWAYS_INLINE
TOML_CONSTEVAL
size_t operator"" _sz(unsigned long long n) noexcept
{
return static_cast<size_t>(n);
}
}
TOML_NAMESPACE_END;
TOML_NAMESPACE_START
{
TOML_ABI_NAMESPACE_BOOL(TOML_LARGE_FILES, lf, sf);
#if TOML_LARGE_FILES
using source_index = uint32_t;
#else
using source_index = uint16_t;
#endif
struct TOML_TRIVIAL_ABI source_position
{
source_index line;
source_index column;
TOML_NODISCARD
explicit constexpr operator bool() const noexcept
{
return line > source_index{} && column > source_index{};
}
TOML_NODISCARD
friend constexpr bool operator==(const source_position& lhs, const source_position& rhs) noexcept
{
return lhs.line == rhs.line && lhs.column == rhs.column;
}
TOML_NODISCARD
friend constexpr bool operator!=(const source_position& lhs, const source_position& rhs) noexcept
{
return lhs.line != rhs.line || lhs.column != rhs.column;
}
TOML_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);
}
TOML_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;
#if TOML_WINDOWS_COMPAT
TOML_NODISCARD
optional<std::wstring> wide_path() const noexcept
{
if (!path || path->empty())
return {};
return { impl::widen(*path) };
}
#endif
};
TOML_ABI_NAMESPACE_END; // TOML_LARGE_FILES
}
TOML_NAMESPACE_END;
TOML_NAMESPACE_START
{
enum class value_flags : uint8_t
{
none,
format_as_binary = 1,
format_as_octal = 2,
format_as_hexadecimal = 3,
};
TOML_MAKE_FLAGS(value_flags);
enum class format_flags : uint8_t
{
none,
quote_dates_and_times = 1,
allow_literal_strings = 2,
allow_multi_line_strings = 4,
allow_value_format_flags = 8,
};
TOML_MAKE_FLAGS(format_flags);
template <typename Char>
inline 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();
}
}
namespace impl
{
#define TOML_P2S_DECL(Type) \
template <typename Char> \
inline void print_to_stream(Type, std::basic_ostream<Char>&, value_flags = {})
TOML_P2S_DECL(int8_t);
TOML_P2S_DECL(int16_t);
TOML_P2S_DECL(int32_t);
TOML_P2S_DECL(int64_t);
TOML_P2S_DECL(uint8_t);
TOML_P2S_DECL(uint16_t);
TOML_P2S_DECL(uint32_t);
TOML_P2S_DECL(uint64_t);
#undef TOML_P2S_DECL
#define TOML_P2S_DECL(Type) \
template <typename Char> \
inline void print_to_stream(Type, std::basic_ostream<Char>&)
TOML_P2S_DECL(double);
TOML_P2S_DECL(const date&);
TOML_P2S_DECL(const time&);
TOML_P2S_DECL(time_offset);
TOML_P2S_DECL(const date_time&);
#undef TOML_P2S_DECL
}
#if !TOML_HEADER_ONLY
extern template TOML_API
std::ostream& operator<<(std::ostream&, node_type);
#endif // !TOML_HEADER_ONLY
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
//******** impl/date_time.h ******************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_NAMESPACE_START
{
struct TOML_TRIVIAL_ABI date
{
uint16_t year;
uint8_t month;
uint8_t day;
TOML_NODISCARD
friend constexpr bool operator==(date lhs, date rhs) noexcept
{
return lhs.year == rhs.year && lhs.month == rhs.month && lhs.day == rhs.day;
}
TOML_NODISCARD
friend constexpr bool operator!=(date lhs, date rhs) noexcept
{
return lhs.year != rhs.year || lhs.month != rhs.month || lhs.day != rhs.day;
}
private:
TOML_NODISCARD
TOML_ALWAYS_INLINE
static constexpr uint32_t pack(const 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:
TOML_NODISCARD
friend constexpr bool operator<(date lhs, date rhs) noexcept
{
return pack(lhs) < pack(rhs);
}
TOML_NODISCARD
friend constexpr bool operator<=(date lhs, date rhs) noexcept
{
return pack(lhs) <= pack(rhs);
}
TOML_NODISCARD
friend constexpr bool operator>(date lhs, date rhs) noexcept
{
return pack(lhs) > pack(rhs);
}
TOML_NODISCARD
friend constexpr bool operator>=(date lhs, date rhs) noexcept
{
return pack(lhs) >= pack(rhs);
}
};
template <typename Char>
inline std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>& lhs, const date& rhs)
{
impl::print_to_stream(rhs, lhs);
return lhs;
}
#if !defined(DOXYGEN) && !TOML_HEADER_ONLY
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;
TOML_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;
}
TOML_NODISCARD
friend constexpr bool operator!=(const time& lhs, const time& rhs) noexcept
{
return !(lhs == rhs);
}
private:
TOML_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:
TOML_NODISCARD
friend constexpr bool operator<(time lhs, time rhs) noexcept
{
return pack(lhs) < pack(rhs);
}
TOML_NODISCARD
friend constexpr bool operator<=(time lhs, time rhs) noexcept
{
return pack(lhs) <= pack(rhs);
}
TOML_NODISCARD
friend constexpr bool operator>(time lhs, time rhs) noexcept
{
return pack(lhs) > pack(rhs);
}
TOML_NODISCARD
friend constexpr bool operator>=(time lhs, time rhs) noexcept
{
return pack(lhs) >= pack(rhs);
}
};
template <typename Char>
inline std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>& lhs, const time& rhs)
{
impl::print_to_stream(rhs, lhs);
return lhs;
}
#if !defined(DOXYGEN) && !TOML_HEADER_ONLY
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) }
{}
TOML_NODISCARD
friend constexpr bool operator==(time_offset lhs, time_offset rhs) noexcept
{
return lhs.minutes == rhs.minutes;
}
TOML_NODISCARD
friend constexpr bool operator!=(time_offset lhs, time_offset rhs) noexcept
{
return lhs.minutes != rhs.minutes;
}
TOML_NODISCARD
friend constexpr bool operator<(time_offset lhs, time_offset rhs) noexcept
{
return lhs.minutes < rhs.minutes;
}
TOML_NODISCARD
friend constexpr bool operator<=(time_offset lhs, time_offset rhs) noexcept
{
return lhs.minutes <= rhs.minutes;
}
TOML_NODISCARD
friend constexpr bool operator>(time_offset lhs, time_offset rhs) noexcept
{
return lhs.minutes > rhs.minutes;
}
TOML_NODISCARD
friend constexpr bool operator>=(time_offset lhs, time_offset rhs) noexcept
{
return lhs.minutes >= rhs.minutes;
}
};
template <typename Char>
inline std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>& lhs, const time_offset& rhs)
{
impl::print_to_stream(rhs, lhs);
return lhs;
}
#if !defined(DOXYGEN) && !TOML_HEADER_ONLY
extern template TOML_API
std::ostream& operator<<(std::ostream&, const time_offset&);
#endif
TOML_ABI_NAMESPACE_BOOL(TOML_HAS_CUSTOM_OPTIONAL_TYPE, custopt, stdopt);
struct date_time
{
toml::date date;
toml::time time;
optional<toml::time_offset> offset;
TOML_NODISCARD_CTOR
constexpr date_time() noexcept //
: date{},
time{},
offset{} // TINAE - icc bugfix
{}
TOML_NODISCARD_CTOR
constexpr date_time(toml::date d, toml::time t) noexcept //
: date{ d },
time{ t },
offset{} // TINAE - icc bugfix
{}
TOML_NODISCARD_CTOR
constexpr date_time(toml::date d, toml::time t, toml::time_offset off) noexcept
: date{ d },
time{ t },
offset{ off }
{}
TOML_NODISCARD
constexpr bool is_local() const noexcept
{
return !offset.has_value();
}
TOML_NODISCARD
friend constexpr bool operator==(const date_time& lhs, const date_time& rhs) noexcept
{
return lhs.date == rhs.date && lhs.time == rhs.time && lhs.offset == rhs.offset;
}
TOML_NODISCARD
friend constexpr bool operator!=(const date_time& lhs, const date_time& rhs) noexcept
{
return !(lhs == rhs);
}
TOML_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.offset < rhs.offset;
}
TOML_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.offset <= rhs.offset;
}
TOML_NODISCARD
friend constexpr bool operator>(const date_time& lhs, const date_time& rhs) noexcept
{
return !(lhs <= rhs);
}
TOML_NODISCARD
friend constexpr bool operator>=(const date_time& lhs, const date_time& rhs) noexcept
{
return !(lhs < rhs);
}
};
TOML_ABI_NAMESPACE_END; // TOML_HAS_CUSTOM_OPTIONAL_TYPE
template <typename Char>
inline std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>& lhs, const date_time& rhs)
{
impl::print_to_stream(rhs, lhs);
return lhs;
}
#if !defined(DOXYGEN) && !TOML_HEADER_ONLY
extern template TOML_API
std::ostream& operator<<(std::ostream&, const date_time&);
#endif
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
//******** impl/print_to_stream.h ************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_DISABLE_ARITHMETIC_WARNINGS;
TOML_IMPL_NAMESPACE_START
{
// 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>
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>
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>
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_ATTR(nonnull)
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 TOML_HAS_CHAR8
template <typename Char>
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_ATTR(nonnull)
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, value_flags format = {})
{
static_assert(sizeof(Char) == 1, "The stream's underlying character type must be 1 byte in size.");
if (!val)
{
print_to_stream('0', stream);
return;
}
int base = 10;
if (format != value_flags::none && val >= T{})
{
switch (format)
{
case value_flags::format_as_binary: base = 2; break;
case value_flags::format_as_octal: base = 8; break;
case value_flags::format_as_hexadecimal: base = 16; break;
default: break;
}
}
#if TOML_INT_CHARCONV
char buf[(sizeof(T) * CHAR_BIT)];
const auto res = std::to_chars(buf, buf + sizeof(buf), val, base);
const auto len = static_cast<size_t>(res.ptr - buf);
if (base == 16)
{
for (size_t i = 0; i < len; i++)
if (buf[i] >= 'a')
buf[i] -= 32;
}
print_to_stream(buf, len, stream);
#else
using unsigned_type = std::conditional_t<(sizeof(T) > sizeof(unsigned)), std::make_unsigned_t<T>, unsigned>;
using cast_type = std::conditional_t<std::is_signed_v<T>, std::make_signed_t<unsigned_type>, unsigned_type>;
if TOML_UNLIKELY(format == value_flags::format_as_binary)
{
bool found_one = false;
const auto v = static_cast<unsigned_type>(val);
unsigned_type mask = unsigned_type{ 1 } << (sizeof(unsigned_type) * CHAR_BIT - 1u);
for (unsigned i = 0; i < sizeof(unsigned_type) * CHAR_BIT; i++)
{
if ((v & mask))
{
print_to_stream('1', stream);
found_one = true;
}
else if (found_one)
print_to_stream('0', stream);
mask >>= 1;
}
}
else
{
std::ostringstream ss;
ss.imbue(std::locale::classic());
ss << std::uppercase << std::setbase(base);
ss << static_cast<cast_type>(val);
const auto str = std::move(ss).str();
print_to_stream(str, stream);
}
#endif
}
#define TOML_P2S_OVERLOAD(T) \
template <typename Char> \
inline void print_to_stream(T val, std::basic_ostream<Char>& stream, value_flags format) \
{ \
static_assert(sizeof(Char) == 1); \
print_integer_to_stream(val, stream, format); \
} \
static_assert(true)
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>
inline 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 (impl::fpclassify(val))
{
case fp_class::neg_inf: print_to_stream("-inf"sv, stream); break;
case fp_class::pos_inf: print_to_stream("inf"sv, stream); break;
case fp_class::nan: print_to_stream("nan"sv, stream); break;
case fp_class::ok:
{
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
}
break;
default: TOML_UNREACHABLE;
}
}
#if !defined(DOXYGEN) && !TOML_HEADER_ONLY
extern template TOML_API
void print_floating_point_to_stream(double, std::ostream&, bool);
#endif
#define TOML_P2S_OVERLOAD(Type) \
template <typename Char> \
inline void print_to_stream(Type val, std::basic_ostream<Char>& stream) \
{ \
static_assert(sizeof(Char) == 1); \
print_floating_point_to_stream(val, stream); \
} \
static_assert(true)
TOML_P2S_OVERLOAD(double);
#undef TOML_P2S_OVERLOAD
template <typename Char>
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.offset)
print_to_stream(*val.offset, stream);
}
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 >= '\x00' && c <= '\x1F')
print_to_stream(low_character_escape_table[c], stream);
else if TOML_UNLIKELY(c == '\x7F')
print_to_stream("\\u007F"sv, stream);
else if TOML_UNLIKELY(c == '"')
print_to_stream("\\\""sv, stream);
else if TOML_UNLIKELY(c == '\\')
print_to_stream("\\\\"sv, stream);
else
print_to_stream(c, stream);
}
}
}
TOML_IMPL_NAMESPACE_END;
TOML_NAMESPACE_START
{
template <typename Char>
inline 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>
inline 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 !defined(DOXYGEN) && !TOML_HEADER_ONLY
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
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
//******** impl/node.h ***********************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_NAMESPACE_START
{
class TOML_ABSTRACT_BASE TOML_API node
{
private:
friend class TOML_PARSER_TYPENAME;
source_region source_{};
template <typename T>
TOML_NODISCARD
decltype(auto) get_value_exact() const noexcept;
template <typename T, typename N>
TOML_NODISCARD
TOML_ATTR(pure)
static decltype(auto) do_ref(N&& n) noexcept
{
using type = impl::unwrap_node<T>;
static_assert((impl::is_native<type> || impl::is_one_of<type, table, array>)&&!impl::is_cvref<type>,
"The template type argument of node::ref() must be one of:" TOML_SA_UNWRAPPED_NODE_TYPE_LIST);
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_native<type>)
return static_cast<N&&>(n).template ref_cast<type>().get();
else
return static_cast<N&&>(n).template ref_cast<type>();
}
protected:
node() noexcept = default;
node(const node&) noexcept;
node(node&&) noexcept;
node& operator=(const node&) noexcept;
node& operator=(node&&) noexcept;
template <typename T>
TOML_NODISCARD
TOML_ALWAYS_INLINE
TOML_ATTR(pure)
impl::wrap_node<T>& ref_cast() & noexcept
{
return *reinterpret_cast<impl::wrap_node<T>*>(this);
}
template <typename T>
TOML_NODISCARD
TOML_ALWAYS_INLINE
TOML_ATTR(pure)
impl::wrap_node<T>&& ref_cast() && noexcept
{
return std::move(*reinterpret_cast<impl::wrap_node<T>*>(this));
}
template <typename T>
TOML_NODISCARD
TOML_ALWAYS_INLINE
TOML_ATTR(pure)
const impl::wrap_node<T>& ref_cast() const& noexcept
{
return *reinterpret_cast<const impl::wrap_node<T>*>(this);
}
template <typename N, typename T>
using ref_cast_type = decltype(std::declval<N>().template ref_cast<T>());
public:
virtual ~node() noexcept = default;
#if defined(DOXYGEN) || !TOML_ICC || TOML_ICC_CL
TOML_NODISCARD
virtual node_type type() const noexcept = 0;
#else
TOML_NODISCARD
virtual node_type type() const noexcept
{
// Q: "what the fuck?"
// A: https://github.com/marzer/tomlplusplus/issues/83
// tl,dr: go home ICC, you're drunk.
return type();
}
#endif
TOML_NODISCARD
virtual bool is_table() const noexcept = 0;
TOML_NODISCARD
virtual bool is_array() const noexcept = 0;
TOML_NODISCARD
virtual bool is_value() const noexcept = 0;
TOML_NODISCARD
virtual bool is_string() const noexcept
{
return false;
}
TOML_NODISCARD
virtual bool is_integer() const noexcept
{
return false;
}
TOML_NODISCARD
virtual bool is_floating_point() const noexcept
{
return false;
}
TOML_NODISCARD
virtual bool is_number() const noexcept
{
return false;
}
TOML_NODISCARD
virtual bool is_boolean() const noexcept
{
return false;
}
TOML_NODISCARD
virtual bool is_date() const noexcept
{
return false;
}
TOML_NODISCARD
virtual bool is_time() const noexcept
{
return false;
}
TOML_NODISCARD
virtual bool is_date_time() const noexcept
{
return false;
}
TOML_NODISCARD
virtual bool is_array_of_tables() const noexcept
{
return false;
}
template <typename T>
TOML_NODISCARD
TOML_ATTR(pure)
bool is() const noexcept
{
using type = impl::unwrap_node<T>;
static_assert((impl::is_native<type> || impl::is_one_of<type, table, array>)&&!impl::is_cvref<type>,
"The template type argument of node::is() must be one of:" TOML_SA_UNWRAPPED_NODE_TYPE_LIST);
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, std::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();
}
TOML_NODISCARD
virtual bool is_homogeneous(node_type ntype, node*& first_nonmatch) noexcept = 0;
TOML_NODISCARD
virtual bool is_homogeneous(node_type ntype, const node*& first_nonmatch) const noexcept = 0;
TOML_NODISCARD
virtual bool is_homogeneous(node_type ntype) const noexcept = 0;
template <typename ElemType = void>
TOML_NODISCARD
TOML_ATTR(pure)
bool is_homogeneous() const noexcept
{
using type = impl::unwrap_node<ElemType>;
static_assert(
std::is_void_v<
type> || ((impl::is_native<type> || impl::is_one_of<type, table, array>)&&!impl::is_cvref<type>),
"The template type argument of node::is_homogeneous() must be void or one "
"of:" TOML_SA_UNWRAPPED_NODE_TYPE_LIST);
return is_homogeneous(impl::node_type_of<type>);
}
TOML_NODISCARD
virtual table* as_table() noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual array* as_array() noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual toml::value<std::string>* as_string() noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual toml::value<int64_t>* as_integer() noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual toml::value<double>* as_floating_point() noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual toml::value<bool>* as_boolean() noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual toml::value<date>* as_date() noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual toml::value<time>* as_time() noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual toml::value<date_time>* as_date_time() noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual const table* as_table() const noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual const array* as_array() const noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual const toml::value<std::string>* as_string() const noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual const toml::value<int64_t>* as_integer() const noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual const toml::value<double>* as_floating_point() const noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual const toml::value<bool>* as_boolean() const noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual const toml::value<date>* as_date() const noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual const toml::value<time>* as_time() const noexcept
{
return nullptr;
}
TOML_NODISCARD
virtual const toml::value<date_time>* as_date_time() const noexcept
{
return nullptr;
}
template <typename T>
TOML_NODISCARD
TOML_ATTR(pure)
impl::wrap_node<T>* as() noexcept
{
using type = impl::unwrap_node<T>;
static_assert((impl::is_native<type> || impl::is_one_of<type, table, array>)&&!impl::is_cvref<type>,
"The template type argument of node::as() must be one of:" TOML_SA_UNWRAPPED_NODE_TYPE_LIST);
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, std::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>
TOML_NODISCARD
TOML_ATTR(pure)
const impl::wrap_node<T>* as() const noexcept
{
using type = impl::unwrap_node<T>;
static_assert((impl::is_native<type> || impl::is_one_of<type, table, array>)&&!impl::is_cvref<type>,
"The template type argument of node::as() must be one of:" TOML_SA_UNWRAPPED_NODE_TYPE_LIST);
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, std::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>
TOML_NODISCARD
optional<T> value_exact() const noexcept;
template <typename T>
TOML_NODISCARD
optional<T> value() const noexcept;
template <typename T>
TOML_NODISCARD
auto value_or(T&& default_value) const noexcept;
// template <typename T>
// TOML_NODISCARD
// std::vector<T> select_exact() const noexcept;
// template <typename T>
// TOML_NODISCARD
// std::vector<T> select() const noexcept;
template <typename T>
TOML_NODISCARD
TOML_ATTR(pure)
impl::unwrap_node<T>& ref() & noexcept
{
return do_ref<T>(*this);
}
template <typename T>
TOML_NODISCARD
TOML_ATTR(pure)
impl::unwrap_node<T>&& ref() && noexcept
{
return do_ref<T>(std::move(*this));
}
template <typename T>
TOML_NODISCARD
TOML_ATTR(pure)
const impl::unwrap_node<T>& ref() const& noexcept
{
return do_ref<T>(*this);
}
TOML_NODISCARD
const source_region& source() const noexcept
{
return source_;
}
private:
// clang-format off
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, std::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, std::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, std::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>;
// clang-format on
template <typename Func, typename N, typename T, bool = can_visit<Func, N, T>>
struct visit_return_type_
{
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>
{
using type = void;
};
template <typename Func, typename N, typename T>
using visit_return_type = typename visit_return_type_<Func, N, T>::type;
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&&>,
"TOML node visitors must be invocable for at least one of the toml::node "
"specializations:" TOML_SA_NODE_TYPE_LIST);
switch (n.type())
{
case node_type::table:
if constexpr (can_visit<Func&&, N&&, table>)
return static_cast<Func&&>(visitor)(static_cast<N&&>(n).template ref_cast<table>());
break;
case node_type::array:
if constexpr (can_visit<Func&&, N&&, array>)
return static_cast<Func&&>(visitor)(static_cast<N&&>(n).template ref_cast<array>());
break;
case node_type::string:
if constexpr (can_visit<Func&&, N&&, std::string>)
return static_cast<Func&&>(visitor)(static_cast<N&&>(n).template ref_cast<std::string>());
break;
case node_type::integer:
if constexpr (can_visit<Func&&, N&&, int64_t>)
return static_cast<Func&&>(visitor)(static_cast<N&&>(n).template ref_cast<int64_t>());
break;
case node_type::floating_point:
if constexpr (can_visit<Func&&, N&&, double>)
return static_cast<Func&&>(visitor)(static_cast<N&&>(n).template ref_cast<double>());
break;
case node_type::boolean:
if constexpr (can_visit<Func&&, N&&, bool>)
return static_cast<Func&&>(visitor)(static_cast<N&&>(n).template ref_cast<bool>());
break;
case node_type::date:
if constexpr (can_visit<Func&&, N&&, date>)
return static_cast<Func&&>(visitor)(static_cast<N&&>(n).template ref_cast<date>());
break;
case node_type::time:
if constexpr (can_visit<Func&&, N&&, time>)
return static_cast<Func&&>(visitor)(static_cast<N&&>(n).template ref_cast<time>());
break;
case node_type::date_time:
if constexpr (can_visit<Func&&, N&&, date_time>)
return static_cast<Func&&>(visitor)(static_cast<N&&>(n).template ref_cast<date_time>());
break;
case node_type::none: TOML_UNREACHABLE;
default: TOML_UNREACHABLE;
}
if constexpr (can_visit_all<Func&&, N&&>)
TOML_UNREACHABLE;
else
{
// clang-format off
using return_type =
nonvoid<visit_return_type<Func&&, N&&, table>,
nonvoid<visit_return_type<Func&&, N&&, array>,
nonvoid<visit_return_type<Func&&, N&&, std::string>,
nonvoid<visit_return_type<Func&&, N&&, int64_t>,
nonvoid<visit_return_type<Func&&, N&&, double>,
nonvoid<visit_return_type<Func&&, N&&, bool>,
nonvoid<visit_return_type<Func&&, N&&, date>,
nonvoid<visit_return_type<Func&&, N&&, time>,
visit_return_type<Func&&, N&&, date_time>
>>>>>>>>;
// clang-format on
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{};
}
}
}
public:
template <typename Func>
decltype(auto) visit(Func&& visitor) & noexcept(visit_is_nothrow<Func&&, node&>)
{
return do_visit(*this, static_cast<Func&&>(visitor));
}
template <typename Func>
decltype(auto) visit(Func&& visitor) && noexcept(visit_is_nothrow<Func&&, node&&>)
{
return do_visit(static_cast<node&&>(*this), static_cast<Func&&>(visitor));
}
template <typename Func>
decltype(auto) visit(Func&& visitor) const& noexcept(visit_is_nothrow<Func&&, const node&>)
{
return do_visit(*this, static_cast<Func&&>(visitor));
}
TOML_NODISCARD
explicit operator node_view<node>() noexcept;
TOML_NODISCARD
explicit operator node_view<const node>() const noexcept;
};
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
//******** impl/value.h **********************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
// clang-format off
#if TOML_WINDOWS_COMPAT
#define TOML_SA_VALUE_MESSAGE_WSTRING TOML_SA_LIST_SEP "std::wstring"
#else
#define TOML_SA_VALUE_MESSAGE_WSTRING
#endif
#if TOML_HAS_CHAR8
#define TOML_SA_VALUE_MESSAGE_U8STRING_VIEW TOML_SA_LIST_SEP "std::u8string_view"
#define TOML_SA_VALUE_MESSAGE_CONST_CHAR8 TOML_SA_LIST_SEP "const char8_t*"
#else
#define TOML_SA_VALUE_MESSAGE_U8STRING_VIEW
#define TOML_SA_VALUE_MESSAGE_CONST_CHAR8
#endif
#define TOML_SA_VALUE_EXACT_FUNC_MESSAGE(type_arg) \
"The " type_arg " must be one of:" \
TOML_SA_LIST_NEW "A native TOML value type" \
TOML_SA_NATIVE_VALUE_TYPE_LIST \
\
TOML_SA_LIST_NXT "A non-view type capable of losslessly representing a native TOML value type" \
TOML_SA_LIST_BEG "std::string" \
TOML_SA_VALUE_MESSAGE_WSTRING \
TOML_SA_LIST_SEP "any signed integer type >= 64 bits" \
TOML_SA_LIST_SEP "any floating-point type >= 64 bits" \
TOML_SA_LIST_END \
\
TOML_SA_LIST_NXT "An immutable view type not requiring additional temporary storage" \
TOML_SA_LIST_BEG "std::string_view" \
TOML_SA_VALUE_MESSAGE_U8STRING_VIEW \
TOML_SA_LIST_SEP "const char*" \
TOML_SA_VALUE_MESSAGE_CONST_CHAR8 \
TOML_SA_LIST_END
#define TOML_SA_VALUE_FUNC_MESSAGE(type_arg) \
"The " type_arg " must be one of:" \
TOML_SA_LIST_NEW "A native TOML value type" \
TOML_SA_NATIVE_VALUE_TYPE_LIST \
\
TOML_SA_LIST_NXT "A non-view type capable of losslessly representing a native TOML value type" \
TOML_SA_LIST_BEG "std::string" \
TOML_SA_VALUE_MESSAGE_WSTRING \
TOML_SA_LIST_SEP "any signed integer type >= 64 bits" \
TOML_SA_LIST_SEP "any floating-point type >= 64 bits" \
TOML_SA_LIST_END \
\
TOML_SA_LIST_NXT "A non-view type capable of (reasonably) representing a native TOML value type" \
TOML_SA_LIST_BEG "any other integer type" \
TOML_SA_LIST_SEP "any floating-point type >= 32 bits" \
TOML_SA_LIST_END \
\
TOML_SA_LIST_NXT "An immutable view type not requiring additional temporary storage" \
TOML_SA_LIST_BEG "std::string_view" \
TOML_SA_VALUE_MESSAGE_U8STRING_VIEW \
TOML_SA_LIST_SEP "const char*" \
TOML_SA_VALUE_MESSAGE_CONST_CHAR8 \
TOML_SA_LIST_END
// clang-format on
TOML_DISABLE_ARITHMETIC_WARNINGS;
TOML_DISABLE_INIT_WARNINGS;
TOML_IMPL_NAMESPACE_START
{
template <typename T, typename...>
struct native_value_maker
{
template <typename... Args>
TOML_NODISCARD
static T make(Args&&... args) noexcept(std::is_nothrow_constructible_v<T, Args&&...>)
{
return T(static_cast<Args&&>(args)...);
}
};
template <typename T>
struct native_value_maker<T, T>
{
template <typename U>
TOML_NODISCARD
TOML_ALWAYS_INLINE
static U&& make(U&& val) noexcept
{
return static_cast<U&&>(val);
}
};
#if TOML_HAS_CHAR8 || TOML_WINDOWS_COMPAT
struct string_maker
{
template <typename T>
TOML_NODISCARD
static std::string make(T&& arg) noexcept
{
#if TOML_HAS_CHAR8
if constexpr (is_one_of<std::decay_t<T>, char8_t*, const char8_t*>)
return std::string(reinterpret_cast<const char*>(static_cast<const char8_t*>(arg)));
else if constexpr (is_one_of<remove_cvref_t<T>, std::u8string, std::u8string_view>)
return std::string(reinterpret_cast<const char*>(static_cast<const char8_t*>(arg.data())),
arg.length());
#endif // TOML_HAS_CHAR8
#if TOML_WINDOWS_COMPAT
if constexpr (is_wide_string<T>)
return narrow(static_cast<T&&>(arg));
#endif // TOML_WINDOWS_COMPAT
}
};
#if TOML_HAS_CHAR8
template <>
struct native_value_maker<std::string, char8_t*> : string_maker
{};
template <>
struct native_value_maker<std::string, const char8_t*> : string_maker
{};
template <>
struct native_value_maker<std::string, std::u8string> : string_maker
{};
template <>
struct native_value_maker<std::string, std::u8string_view> : string_maker
{};
#endif // TOML_HAS_CHAR8
#if TOML_WINDOWS_COMPAT
template <>
struct native_value_maker<std::string, wchar_t*> : string_maker
{};
template <>
struct native_value_maker<std::string, const wchar_t*> : string_maker
{};
template <>
struct native_value_maker<std::string, std::wstring> : string_maker
{};
template <>
struct native_value_maker<std::string, std::wstring_view> : string_maker
{};
#endif // TOML_WINDOWS_COMPAT
#endif // TOML_HAS_CHAR8 || TOML_WINDOWS_COMPAT
template <typename T>
TOML_NODISCARD
TOML_ATTR(const)
inline optional<T> node_integer_cast(int64_t val) noexcept
{
static_assert(node_type_of<T> == node_type::integer);
static_assert(!is_cvref<T>);
using traits = value_traits<T>;
if constexpr (!traits::is_signed)
{
if constexpr ((sizeof(T) * CHAR_BIT) < 63) // 63 bits == int64_max
{
using common_t = decltype(int64_t{} + T{});
if (val < int64_t{} || static_cast<common_t>(val) > static_cast<common_t>(traits::max))
return {};
}
else
{
if (val < int64_t{})
return {};
}
}
else
{
if (val < traits::min || val > traits::max)
return {};
}
return { static_cast<T>(val) };
}
}
TOML_IMPL_NAMESPACE_END;
TOML_NAMESPACE_START
{
template <typename ValueType>
class TOML_API value final : public node
{
static_assert(impl::is_native<ValueType> && !impl::is_cvref<ValueType>,
"A toml::value<> must model one of the native TOML value types:" TOML_SA_NATIVE_VALUE_TYPE_LIST);
private:
friend class TOML_PARSER_TYPENAME;
template <typename T, typename U>
TOML_NODISCARD
TOML_ALWAYS_INLINE
TOML_ATTR(const)
static auto as_value([[maybe_unused]] U* ptr) noexcept
{
if constexpr (std::is_same_v<value_type, T>)
return ptr;
else
return nullptr;
}
ValueType val_;
value_flags flags_ = value_flags::none;
public:
using value_type = ValueType;
using value_arg = POXY_IMPLEMENTATION_DETAIL(
std::conditional_t<
std::is_same_v<value_type, std::string>,
std::string_view,
std::conditional_t<impl::is_one_of<value_type, double, int64_t, bool>, value_type, const value_type&>>);
template <typename... Args>
TOML_NODISCARD_CTOR
explicit value(Args&&... args) noexcept(noexcept(value_type(
impl::native_value_maker<value_type, std::decay_t<Args>...>::make(static_cast<Args&&>(args)...))))
: val_(impl::native_value_maker<value_type, std::decay_t<Args>...>::make(static_cast<Args&&>(args)...))
{
#if TOML_LIFETIME_HOOKS
TOML_VALUE_CREATED;
#endif
}
TOML_NODISCARD_CTOR
value(const value& other) noexcept //
: node(other),
val_{ other.val_ },
flags_{ other.flags_ }
{
#if TOML_LIFETIME_HOOKS
TOML_VALUE_CREATED;
#endif
}
TOML_NODISCARD_CTOR
value(value&& other) noexcept //
: node(std::move(other)),
val_{ std::move(other.val_) },
flags_{ other.flags_ }
{
#if TOML_LIFETIME_HOOKS
TOML_VALUE_CREATED;
#endif
}
value& operator=(const value& rhs) noexcept
{
node::operator=(rhs);
val_ = rhs.val_;
flags_ = rhs.flags_;
return *this;
}
value& operator=(value&& rhs) noexcept
{
if (&rhs != this)
{
node::operator=(std::move(rhs));
val_ = std::move(rhs.val_);
flags_ = rhs.flags_;
}
return *this;
}
#if TOML_LIFETIME_HOOKS
~value() noexcept override
{
TOML_VALUE_DESTROYED;
}
#endif
TOML_NODISCARD
node_type type() const noexcept override
{
return impl::node_type_of<value_type>;
}
TOML_NODISCARD
bool is_table() const noexcept override
{
return false;
}
TOML_NODISCARD
bool is_array() const noexcept override
{
return false;
}
TOML_NODISCARD
bool is_value() const noexcept override
{
return true;
}
TOML_NODISCARD
bool is_string() const noexcept override
{
return std::is_same_v<value_type, std::string>;
}
TOML_NODISCARD
bool is_integer() const noexcept override
{
return std::is_same_v<value_type, int64_t>;
}
TOML_NODISCARD
bool is_floating_point() const noexcept override
{
return std::is_same_v<value_type, double>;
}
TOML_NODISCARD
bool is_number() const noexcept override
{
return impl::is_one_of<value_type, int64_t, double>;
}
TOML_NODISCARD
bool is_boolean() const noexcept override
{
return std::is_same_v<value_type, bool>;
}
TOML_NODISCARD
bool is_date() const noexcept override
{
return std::is_same_v<value_type, date>;
}
TOML_NODISCARD
bool is_time() const noexcept override
{
return std::is_same_v<value_type, time>;
}
TOML_NODISCARD
bool is_date_time() const noexcept override
{
return std::is_same_v<value_type, date_time>;
}
TOML_NODISCARD
bool is_homogeneous(node_type ntype) const noexcept override
{
return ntype == node_type::none || ntype == impl::node_type_of<value_type>;
}
TOML_NODISCARD
bool is_homogeneous(node_type ntype, toml::node*& first_nonmatch) noexcept override
{
if (ntype != node_type::none && ntype != impl::node_type_of<value_type>)
{
first_nonmatch = this;
return false;
}
return true;
}
TOML_NODISCARD
bool is_homogeneous(node_type ntype, const toml::node*& first_nonmatch) const noexcept override
{
if (ntype != node_type::none && ntype != impl::node_type_of<value_type>)
{
first_nonmatch = this;
return false;
}
return true;
}
template <typename ElemType = void>
TOML_NODISCARD
bool is_homogeneous() const noexcept
{
using type = impl::unwrap_node<ElemType>;
static_assert(
std::is_void_v<
type> || ((impl::is_native<type> || impl::is_one_of<type, table, array>)&&!impl::is_cvref<type>),
"The template type argument of value::is_homogeneous() must be void or one "
"of:" TOML_SA_UNWRAPPED_NODE_TYPE_LIST);
using type = impl::unwrap_node<ElemType>;
if constexpr (std::is_void_v<type>)
return true;
else
return impl::node_type_of<type> == impl::node_type_of<value_type>;
}
TOML_NODISCARD
value<std::string>* as_string() noexcept override
{
return as_value<std::string>(this);
}
TOML_NODISCARD
value<int64_t>* as_integer() noexcept override
{
return as_value<int64_t>(this);
}
TOML_NODISCARD
value<double>* as_floating_point() noexcept override
{
return as_value<double>(this);
}
TOML_NODISCARD
value<bool>* as_boolean() noexcept override
{
return as_value<bool>(this);
}
TOML_NODISCARD
value<date>* as_date() noexcept override
{
return as_value<date>(this);
}
TOML_NODISCARD
value<time>* as_time() noexcept override
{
return as_value<time>(this);
}
TOML_NODISCARD
value<date_time>* as_date_time() noexcept override
{
return as_value<date_time>(this);
}
TOML_NODISCARD
const value<std::string>* as_string() const noexcept override
{
return as_value<std::string>(this);
}
TOML_NODISCARD
const value<int64_t>* as_integer() const noexcept override
{
return as_value<int64_t>(this);
}
TOML_NODISCARD
const value<double>* as_floating_point() const noexcept override
{
return as_value<double>(this);
}
TOML_NODISCARD
const value<bool>* as_boolean() const noexcept override
{
return as_value<bool>(this);
}
TOML_NODISCARD
const value<date>* as_date() const noexcept override
{
return as_value<date>(this);
}
TOML_NODISCARD
const value<time>* as_time() const noexcept override
{
return as_value<time>(this);
}
TOML_NODISCARD
const value<date_time>* as_date_time() const noexcept override
{
return as_value<date_time>(this);
}
TOML_NODISCARD
value_type& get() & noexcept
{
return val_;
}
TOML_NODISCARD
value_type&& get() && noexcept
{
return static_cast<value_type&&>(val_);
}
TOML_NODISCARD
const value_type& get() const& noexcept
{
return val_;
}
TOML_NODISCARD
value_type& operator*() & noexcept
{
return val_;
}
TOML_NODISCARD
value_type&& operator*() && noexcept
{
return static_cast<value_type&&>(val_);
}
TOML_NODISCARD
const value_type& operator*() const& noexcept
{
return val_;
}
TOML_NODISCARD
explicit operator value_type&() & noexcept
{
return val_;
}
TOML_NODISCARD
explicit operator value_type&&() && noexcept
{
return static_cast<value_type&&>(val_);
}
TOML_NODISCARD
explicit operator const value_type&() const& noexcept
{
return val_;
}
TOML_NODISCARD
value_flags flags() const noexcept
{
return flags_;
}
value& flags(value_flags new_flags) noexcept
{
flags_ = new_flags;
return *this;
}
template <typename Char, typename T>
friend std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>& lhs, const value<T>& rhs);
// implemented in toml_default_formatter.h
value& operator=(value_arg rhs) noexcept
{
if constexpr (std::is_same_v<value_type, std::string>)
val_.assign(rhs);
else
val_ = rhs;
return *this;
}
TOML_CONSTRAINED_TEMPLATE((std::is_same_v<T, std::string>), typename T = value_type)
value& operator=(std::string&& rhs) noexcept
{
val_ = std::move(rhs);
return *this;
}
TOML_NODISCARD
friend bool operator==(const value& lhs, value_arg rhs) noexcept
{
if constexpr (std::is_same_v<value_type, double>)
{
const auto lhs_class = impl::fpclassify(lhs.val_);
const auto rhs_class = impl::fpclassify(rhs);
if (lhs_class == impl::fp_class::nan && rhs_class == impl::fp_class::nan)
return true;
if ((lhs_class == impl::fp_class::nan) != (rhs_class == impl::fp_class::nan))
return false;
}
return lhs.val_ == rhs;
}
TOML_ASYMMETRICAL_EQUALITY_OPS(const value&, value_arg, );
TOML_NODISCARD
friend bool operator<(const value& lhs, value_arg rhs) noexcept
{
return lhs.val_ < rhs;
}
TOML_NODISCARD
friend bool operator<(value_arg lhs, const value& rhs) noexcept
{
return lhs < rhs.val_;
}
TOML_NODISCARD
friend bool operator<=(const value& lhs, value_arg rhs) noexcept
{
return lhs.val_ <= rhs;
}
TOML_NODISCARD
friend bool operator<=(value_arg lhs, const value& rhs) noexcept
{
return lhs <= rhs.val_;
}
TOML_NODISCARD
friend bool operator>(const value& lhs, value_arg rhs) noexcept
{
return lhs.val_ > rhs;
}
TOML_NODISCARD
friend bool operator>(value_arg lhs, const value& rhs) noexcept
{
return lhs > rhs.val_;
}
TOML_NODISCARD
friend bool operator>=(const value& lhs, value_arg rhs) noexcept
{
return lhs.val_ >= rhs;
}
TOML_NODISCARD
friend bool operator>=(value_arg lhs, const value& rhs) noexcept
{
return lhs >= rhs.val_;
}
template <typename T>
TOML_NODISCARD
friend bool operator==(const value& lhs, const value<T>& rhs) noexcept
{
if constexpr (std::is_same_v<value_type, T>)
return lhs == rhs.val_; // calls asymmetrical value-equality operator defined above
else
return false;
}
template <typename T>
TOML_NODISCARD
friend bool operator!=(const value& lhs, const value<T>& rhs) noexcept
{
return !(lhs == rhs);
}
template <typename T>
TOML_NODISCARD
friend bool operator<(const value& lhs, const value<T>& rhs) noexcept
{
if constexpr (std::is_same_v<value_type, T>)
return lhs.val_ < rhs.val_;
else
return impl::node_type_of<value_type> < impl::node_type_of<T>;
}
template <typename T>
TOML_NODISCARD
friend bool operator<=(const value& lhs, const value<T>& rhs) noexcept
{
if constexpr (std::is_same_v<value_type, T>)
return lhs.val_ <= rhs.val_;
else
return impl::node_type_of<value_type> <= impl::node_type_of<T>;
}
template <typename T>
TOML_NODISCARD
friend bool operator>(const value& lhs, const value<T>& rhs) noexcept
{
if constexpr (std::is_same_v<value_type, T>)
return lhs.val_ > rhs.val_;
else
return impl::node_type_of<value_type> > impl::node_type_of<T>;
}
template <typename T>
TOML_NODISCARD
friend bool operator>=(const value& lhs, const value<T>& rhs) noexcept
{
if constexpr (std::is_same_v<value_type, T>)
return lhs.val_ >= rhs.val_;
else
return impl::node_type_of<value_type> >= impl::node_type_of<T>;
}
};
template <typename T>
value(T) -> value<impl::native_type_of<impl::remove_cvref_t<T>>>;
#if !TOML_HEADER_ONLY
extern template class TOML_API value<std::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>;
#endif
template <typename T>
TOML_NODISCARD
inline decltype(auto) node::get_value_exact() const noexcept
{
using namespace impl;
static_assert(node_type_of<T> != node_type::none);
static_assert(node_type_of<T> != node_type::table);
static_assert(node_type_of<T> != node_type::array);
static_assert(is_native<T> || can_represent_native<T>);
static_assert(!is_cvref<T>);
TOML_ASSERT(this->type() == node_type_of<T>);
if constexpr (node_type_of<T> == node_type::string)
{
const auto& str = *ref_cast<std::string>();
if constexpr (std::is_same_v<T, std::string>)
return str;
else if constexpr (std::is_same_v<T, std::string_view>)
return T{ str };
else if constexpr (std::is_same_v<T, const char*>)
return str.c_str();
else if constexpr (std::is_same_v<T, std::wstring>)
{
#if TOML_WINDOWS_COMPAT
return widen(str);
#else
static_assert(dependent_false<T>, "Evaluated unreachable branch!");
#endif
}
#if TOML_HAS_CHAR8
// char -> char8_t (potentially unsafe - the feature is 'experimental'!)
else if constexpr (is_one_of<T, std::u8string, std::u8string_view>)
return T(reinterpret_cast<const char8_t*>(str.c_str()), str.length());
else if constexpr (std::is_same_v<T, const char8_t*>)
return reinterpret_cast<const char8_t*>(str.c_str());
else
static_assert(dependent_false<T>, "Evaluated unreachable branch!");
#endif
}
else
return static_cast<T>(*ref_cast<native_type_of<T>>());
}
template <typename T>
inline optional<T> node::value_exact() const noexcept
{
using namespace impl;
static_assert(!is_wide_string<T> || TOML_WINDOWS_COMPAT,
"Retrieving values as wide-character strings with node::value_exact() is only "
"supported on Windows with TOML_WINDOWS_COMPAT enabled.");
static_assert((is_native<T> || can_represent_native<T>)&&!is_cvref<T>,
TOML_SA_VALUE_EXACT_FUNC_MESSAGE("return type of node::value_exact()"));
// prevent additional compiler error spam when the static_assert fails by gating behind if constexpr
if constexpr ((is_native<T> || can_represent_native<T>)&&!is_cvref<T>)
{
if (type() == node_type_of<T>)
return { this->get_value_exact<T>() };
else
return {};
}
}
template <typename T>
inline optional<T> node::value() const noexcept
{
using namespace impl;
static_assert(!is_wide_string<T> || TOML_WINDOWS_COMPAT,
"Retrieving values as wide-character strings with node::value() is only "
"supported on Windows with TOML_WINDOWS_COMPAT enabled.");
static_assert((is_native<T> || can_represent_native<T> || can_partially_represent_native<T>)&&!is_cvref<T>,
TOML_SA_VALUE_FUNC_MESSAGE("return type of node::value()"));
// when asking for strings, dates, times and date_times there's no 'fuzzy' conversion
// semantics to be mindful of so the exact retrieval is enough.
if constexpr (is_natively_one_of<T, std::string, time, date, date_time>)
{
if (type() == node_type_of<T>)
return { this->get_value_exact<T>() };
else
return {};
}
// everything else requires a bit of logicking.
else
{
switch (type())
{
// int -> *
case node_type::integer:
{
// int -> int
if constexpr (is_natively_one_of<T, int64_t>)
{
if constexpr (is_native<T> || can_represent_native<T>)
return static_cast<T>(*ref_cast<int64_t>());
else
return node_integer_cast<T>(*ref_cast<int64_t>());
}
// int -> float
else if constexpr (is_natively_one_of<T, double>)
{
const int64_t val = *ref_cast<int64_t>();
if constexpr (std::numeric_limits<T>::digits < 64)
{
constexpr auto largest_whole_float = (int64_t{ 1 } << std::numeric_limits<T>::digits);
if (val < -largest_whole_float || val > largest_whole_float)
return {};
}
return static_cast<T>(val);
}
// int -> bool
else if constexpr (is_natively_one_of<T, bool>)
return static_cast<bool>(*ref_cast<int64_t>());
// int -> anything else
else
return {};
}
// float -> *
case node_type::floating_point:
{
// float -> float
if constexpr (is_natively_one_of<T, double>)
{
if constexpr (is_native<T> || can_represent_native<T>)
return { static_cast<T>(*ref_cast<double>()) };
else
{
const double val = *ref_cast<double>();
if (impl::fpclassify(val) == fp_class::ok
&& (val < (std::numeric_limits<T>::lowest)() || val > (std::numeric_limits<T>::max)()))
return {};
return { static_cast<T>(val) };
}
}
// float -> int
else if constexpr (is_natively_one_of<T, int64_t>)
{
const double val = *ref_cast<double>();
if (impl::fpclassify(val) == fp_class::ok
&& static_cast<double>(static_cast<int64_t>(val)) == val)
return node_integer_cast<T>(static_cast<int64_t>(val));
else
return {};
}
// float -> anything else
else
return {};
}
// bool -> *
case node_type::boolean:
{
// bool -> bool
if constexpr (is_natively_one_of<T, bool>)
return { *ref_cast<bool>() };
// bool -> int
else if constexpr (is_natively_one_of<T, int64_t>)
return { static_cast<T>(*ref_cast<bool>()) };
// bool -> anything else
else
return {};
}
}
// non-values, or 'exact' types covered above
return {};
}
}
template <typename T>
inline auto node::value_or(T && default_value) const noexcept
{
using namespace impl;
static_assert(!is_wide_string<T> || TOML_WINDOWS_COMPAT,
"Retrieving values as wide-character strings with node::value_or() is only "
"supported on Windows with TOML_WINDOWS_COMPAT enabled.");
if constexpr (is_wide_string<T>)
{
#if TOML_WINDOWS_COMPAT
if (type() == node_type::string)
return widen(*ref_cast<std::string>());
return std::wstring{ static_cast<T&&>(default_value) };
#else
static_assert(dependent_false<T>, "Evaluated unreachable branch!");
#endif
}
else
{
using value_type =
std::conditional_t<std::is_pointer_v<std::decay_t<T>>,
std::add_pointer_t<std::add_const_t<std::remove_pointer_t<std::decay_t<T>>>>,
std::decay_t<T>>;
using traits = value_traits<value_type>;
static_assert(
traits::is_native || traits::can_represent_native || traits::can_partially_represent_native,
"The default value type of node::value_or() must be one of:" TOML_SA_LIST_NEW
"A native TOML value type" TOML_SA_NATIVE_VALUE_TYPE_LIST
TOML_SA_LIST_NXT
"A non-view type capable of losslessly representing a native TOML value type" TOML_SA_LIST_BEG
"std::string"
#if TOML_WINDOWS_COMPAT
TOML_SA_LIST_SEP "std::wstring"
#endif
TOML_SA_LIST_SEP "any signed integer type >= 64 bits" TOML_SA_LIST_SEP
"any floating-point type >= 64 bits" TOML_SA_LIST_END
TOML_SA_LIST_NXT
"A non-view type capable of (reasonably) representing a native TOML value type" TOML_SA_LIST_BEG
"any other integer type" TOML_SA_LIST_SEP "any floating-point type >= 32 bits" TOML_SA_LIST_END
TOML_SA_LIST_NXT "A compatible view type" TOML_SA_LIST_BEG "std::string_view"
#if TOML_HAS_CHAR8
TOML_SA_LIST_SEP "std::u8string_view"
#endif
#if TOML_WINDOWS_COMPAT
TOML_SA_LIST_SEP "std::wstring_view"
#endif
TOML_SA_LIST_SEP "const char*"
#if TOML_HAS_CHAR8
TOML_SA_LIST_SEP "const char8_t*"
#endif
#if TOML_WINDOWS_COMPAT
TOML_SA_LIST_SEP "const wchar_t*"
#endif
TOML_SA_LIST_END);
// prevent additional compiler error spam when the static_assert fails by gating behind if constexpr
if constexpr (traits::is_native || traits::can_represent_native || traits::can_partially_represent_native)
{
if constexpr (traits::is_native)
{
if (type() == node_type_of<value_type>)
return *ref_cast<typename traits::native_type>();
}
if (auto val = this->value<value_type>())
return *val;
if constexpr (std::is_pointer_v<value_type>)
return value_type{ default_value };
else
return static_cast<T&&>(default_value);
}
}
}
#if !TOML_HEADER_ONLY
#define TOML_EXTERN(name, T) \
extern template TOML_API \
optional<T> node::name<T>() const noexcept
TOML_EXTERN(value_exact, std::string_view);
TOML_EXTERN(value_exact, std::string);
TOML_EXTERN(value_exact, const char*);
TOML_EXTERN(value_exact, int64_t);
TOML_EXTERN(value_exact, double);
TOML_EXTERN(value_exact, date);
TOML_EXTERN(value_exact, time);
TOML_EXTERN(value_exact, date_time);
TOML_EXTERN(value_exact, bool);
TOML_EXTERN(value, std::string_view);
TOML_EXTERN(value, std::string);
TOML_EXTERN(value, const char*);
TOML_EXTERN(value, signed char);
TOML_EXTERN(value, signed short);
TOML_EXTERN(value, signed int);
TOML_EXTERN(value, signed long);
TOML_EXTERN(value, signed long long);
TOML_EXTERN(value, unsigned char);
TOML_EXTERN(value, unsigned short);
TOML_EXTERN(value, unsigned int);
TOML_EXTERN(value, unsigned long);
TOML_EXTERN(value, unsigned long long);
TOML_EXTERN(value, double);
TOML_EXTERN(value, float);
TOML_EXTERN(value, date);
TOML_EXTERN(value, time);
TOML_EXTERN(value, date_time);
TOML_EXTERN(value, bool);
#if TOML_HAS_CHAR8
TOML_EXTERN(value_exact, std::u8string_view);
TOML_EXTERN(value_exact, std::u8string);
TOML_EXTERN(value_exact, const char8_t*);
TOML_EXTERN(value, std::u8string_view);
TOML_EXTERN(value, std::u8string);
TOML_EXTERN(value, const char8_t*);
#endif
#if TOML_WINDOWS_COMPAT
TOML_EXTERN(value_exact, std::wstring);
TOML_EXTERN(value, std::wstring);
#endif
#undef TOML_EXTERN
#endif // !TOML_HEADER_ONLY
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
//******** impl/array.h **********************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_IMPL_NAMESPACE_START
{
template <bool IsConst>
class TOML_TRIVIAL_ABI array_iterator final
{
private:
template <bool C>
friend class array_iterator;
friend class TOML_NAMESPACE::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_;
TOML_NODISCARD_CTOR
array_iterator(raw_mutable_iterator raw) noexcept //
: raw_{ raw }
{}
TOML_CONSTRAINED_TEMPLATE(C, bool C = IsConst)
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;
using iterator_category = typename std::iterator_traits<raw_iterator>::iterator_category;
TOML_NODISCARD_CTOR
array_iterator() noexcept = default;
TOML_NODISCARD_CTOR
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;
}
TOML_NODISCARD
reference operator*() const noexcept
{
return *raw_->get();
}
TOML_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;
}
TOML_NODISCARD
friend array_iterator operator+(const array_iterator& lhs, ptrdiff_t rhs) noexcept
{
return { lhs.raw_ + rhs };
}
TOML_NODISCARD
friend array_iterator operator+(ptrdiff_t lhs, const array_iterator& rhs) noexcept
{
return { rhs.raw_ + lhs };
}
TOML_NODISCARD
friend array_iterator operator-(const array_iterator& lhs, ptrdiff_t rhs) noexcept
{
return { lhs.raw_ - rhs };
}
TOML_NODISCARD
friend ptrdiff_t operator-(const array_iterator& lhs, const array_iterator& rhs) noexcept
{
return lhs.raw_ - rhs.raw_;
}
TOML_NODISCARD
friend bool operator==(const array_iterator& lhs, const array_iterator& rhs) noexcept
{
return lhs.raw_ == rhs.raw_;
}
TOML_NODISCARD
friend bool operator!=(const array_iterator& lhs, const array_iterator& rhs) noexcept
{
return lhs.raw_ != rhs.raw_;
}
TOML_NODISCARD
friend bool operator<(const array_iterator& lhs, const array_iterator& rhs) noexcept
{
return lhs.raw_ < rhs.raw_;
}
TOML_NODISCARD
friend bool operator<=(const array_iterator& lhs, const array_iterator& rhs) noexcept
{
return lhs.raw_ <= rhs.raw_;
}
TOML_NODISCARD
friend bool operator>(const array_iterator& lhs, const array_iterator& rhs) noexcept
{
return lhs.raw_ > rhs.raw_;
}
TOML_NODISCARD
friend bool operator>=(const array_iterator& lhs, const array_iterator& rhs) noexcept
{
return lhs.raw_ >= rhs.raw_;
}
TOML_NODISCARD
reference operator[](ptrdiff_t idx) const noexcept
{
return *(raw_ + idx)->get();
}
TOML_DISABLE_WARNINGS;
TOML_CONSTRAINED_TEMPLATE(!C, bool C = IsConst)
TOML_NODISCARD
operator array_iterator<true>() const noexcept
{
return array_iterator<true>{ raw_ };
}
TOML_ENABLE_WARNINGS;
};
}
TOML_IMPL_NAMESPACE_END;
TOML_NAMESPACE_START
{
using array_iterator = POXY_IMPLEMENTATION_DETAIL(impl::array_iterator<false>);
using const_array_iterator = POXY_IMPLEMENTATION_DETAIL(impl::array_iterator<true>);
class TOML_API array final : public node
{
private:
friend class TOML_PARSER_TYPENAME;
std::vector<std::unique_ptr<node>> elements;
void preinsertion_resize(size_t idx, size_t count) noexcept;
template <typename T>
void emplace_back_if_not_empty_view(T&& val) noexcept
{
if constexpr (is_node_view<T>)
{
if (!val)
return;
}
elements.emplace_back(impl::make_node(static_cast<T&&>(val)));
}
TOML_NODISCARD
size_t total_leaf_count() const noexcept;
void flatten_child(array&& child, size_t& dest_index) 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(const array&) noexcept;
TOML_NODISCARD_CTOR
array(array&& other) noexcept;
array& operator=(const array&) noexcept;
array& operator=(array&& rhs) noexcept;
#if TOML_LIFETIME_HOOKS
~array() noexcept override
{
TOML_ARRAY_DESTROYED;
}
#endif
TOML_CONSTRAINED_TEMPLATE((sizeof...(ElemTypes) > 0_sz
|| !std::is_same_v<impl::remove_cvref_t<ElemType>, array>),
typename ElemType,
typename... ElemTypes)
TOML_NODISCARD_CTOR
explicit array(ElemType&& val, ElemTypes&&... vals)
{
elements.reserve(sizeof...(ElemTypes) + 1_sz);
emplace_back_if_not_empty_view(static_cast<ElemType&&>(val));
if constexpr (sizeof...(ElemTypes) > 0)
{
(emplace_back_if_not_empty_view(static_cast<ElemTypes&&>(vals)), ...);
}
#if TOML_LIFETIME_HOOKS
TOML_ARRAY_CREATED;
#endif
}
TOML_NODISCARD
node_type type() const noexcept override
{
return node_type::array;
}
TOML_NODISCARD
bool is_table() const noexcept override
{
return false;
}
TOML_NODISCARD
bool is_array() const noexcept override
{
return true;
}
TOML_NODISCARD
bool is_value() const noexcept override
{
return false;
}
TOML_NODISCARD
array* as_array() noexcept override
{
return this;
}
TOML_NODISCARD
const array* as_array() const noexcept override
{
return this;
}
TOML_NODISCARD
bool is_homogeneous(node_type ntype) const noexcept override;
TOML_NODISCARD
bool is_homogeneous(node_type ntype, node*& first_nonmatch) noexcept override;
TOML_NODISCARD
bool is_homogeneous(node_type ntype, const node*& first_nonmatch) const noexcept override;
template <typename ElemType = void>
TOML_NODISCARD
bool is_homogeneous() const noexcept
{
using type = impl::unwrap_node<ElemType>;
static_assert(
std::is_void_v<
type> || ((impl::is_native<type> || impl::is_one_of<type, table, array>)&&!impl::is_cvref<type>),
"The template type argument of array::is_homogeneous() must be void or one "
"of:" TOML_SA_UNWRAPPED_NODE_TYPE_LIST);
return is_homogeneous(impl::node_type_of<type>);
}
TOML_NODISCARD
bool is_array_of_tables() const noexcept override
{
return is_homogeneous(node_type::table);
}
TOML_NODISCARD
node& operator[](size_t index) noexcept;
TOML_NODISCARD
const node& operator[](size_t index) const noexcept;
TOML_NODISCARD
node& front() noexcept
{
return *elements.front();
}
TOML_NODISCARD
const node& front() const noexcept
{
return *elements.front();
}
TOML_NODISCARD
node& back() noexcept
{
return *elements.back();
}
TOML_NODISCARD
const node& back() const noexcept
{
return *elements.back();
}
TOML_NODISCARD
iterator begin() noexcept
{
return { elements.begin() };
}
TOML_NODISCARD
const_iterator begin() const noexcept
{
return { elements.cbegin() };
}
TOML_NODISCARD
const_iterator cbegin() const noexcept
{
return { elements.cbegin() };
}
TOML_NODISCARD
iterator end() noexcept
{
return { elements.end() };
}
TOML_NODISCARD
const_iterator end() const noexcept
{
return { elements.cend() };
}
TOML_NODISCARD
const_iterator cend() const noexcept
{
return { elements.cend() };
}
TOML_NODISCARD
bool empty() const noexcept
{
return elements.empty();
}
TOML_NODISCARD
size_t size() const noexcept
{
return elements.size();
}
void reserve(size_t new_capacity)
{
elements.reserve(new_capacity);
}
void clear() noexcept
{
elements.clear();
}
TOML_NODISCARD
size_t max_size() const noexcept
{
return elements.max_size();
}
TOML_NODISCARD
size_t capacity() const noexcept
{
return elements.capacity();
}
void shrink_to_fit()
{
elements.shrink_to_fit();
}
template <typename ElemType>
iterator insert(const_iterator pos, ElemType&& val) noexcept
{
if constexpr (is_node_view<ElemType>)
{
if (!val)
return end();
}
return { elements.emplace(pos.raw_, impl::make_node(static_cast<ElemType&&>(val))) };
}
template <typename ElemType>
iterator insert(const_iterator pos, size_t count, ElemType&& val) noexcept
{
if constexpr (is_node_view<ElemType>)
{
if (!val)
return end();
}
switch (count)
{
case 0: return { elements.begin() + (pos.raw_ - elements.cbegin()) };
case 1: return insert(pos, static_cast<ElemType&&>(val));
default:
{
const auto start_idx = static_cast<size_t>(pos.raw_ - elements.cbegin());
preinsertion_resize(start_idx, count);
size_t i = start_idx;
for (size_t e = start_idx + count - 1_sz; i < e; i++)
elements[i].reset(impl::make_node(val));
elements[i].reset(impl::make_node(static_cast<ElemType&&>(val)));
return { elements.begin() + static_cast<ptrdiff_t>(start_idx) };
}
}
}
template <typename Iter>
iterator insert(const_iterator pos, Iter first, Iter last) noexcept
{
const auto distance = std::distance(first, last);
if (distance <= 0)
return { elements.begin() + (pos.raw_ - elements.cbegin()) };
else
{
auto count = distance;
using deref_type = decltype(*first);
if constexpr (is_node_view<deref_type>)
{
for (auto it = first; it != last; it++)
if (!(*it))
count--;
if (!count)
return { elements.begin() + (pos.raw_ - elements.cbegin()) };
}
const auto start_idx = static_cast<size_t>(pos.raw_ - elements.cbegin());
preinsertion_resize(start_idx, static_cast<size_t>(count));
size_t i = start_idx;
for (auto it = first; it != last; it++)
{
if constexpr (is_node_view<deref_type>)
{
if (!(*it))
continue;
}
if constexpr (std::is_rvalue_reference_v<deref_type>)
elements[i++].reset(impl::make_node(std::move(*it)));
else
elements[i++].reset(impl::make_node(*it));
}
return { elements.begin() + static_cast<ptrdiff_t>(start_idx) };
}
}
template <typename ElemType>
iterator insert(const_iterator pos, std::initializer_list<ElemType> ilist) noexcept
{
return insert(pos, ilist.begin(), ilist.end());
}
template <typename ElemType, typename... Args>
iterator emplace(const_iterator pos, Args&&... args) noexcept
{
using type = impl::unwrap_node<ElemType>;
static_assert((impl::is_native<type> || impl::is_one_of<type, table, array>)&&!impl::is_cvref<type>,
"Emplacement type parameter must be one of:" TOML_SA_UNWRAPPED_NODE_TYPE_LIST);
return { elements.emplace(pos.raw_, new impl::wrap_node<type>{ static_cast<Args&&>(args)... }) };
}
iterator erase(const_iterator pos) noexcept
{
return { elements.erase(pos.raw_) };
}
iterator erase(const_iterator first, const_iterator last) noexcept
{
return { elements.erase(first.raw_, last.raw_) };
}
template <typename ElemType>
void resize(size_t new_size, ElemType&& default_init_val) noexcept
{
static_assert(!is_node_view<ElemType>,
"The default element type argument to toml::array::resize may not be toml::node_view.");
if (!new_size)
elements.clear();
else if (new_size < elements.size())
elements.resize(new_size);
else if (new_size > elements.size())
insert(cend(), new_size - elements.size(), static_cast<ElemType&&>(default_init_val));
}
void truncate(size_t new_size)
{
if (new_size < elements.size())
elements.resize(new_size);
}
template <typename ElemType>
void push_back(ElemType&& val) noexcept
{
emplace_back_if_not_empty_view(static_cast<ElemType&&>(val));
}
template <typename ElemType, typename... Args>
decltype(auto) emplace_back(Args&&... args) noexcept
{
using type = impl::unwrap_node<ElemType>;
static_assert((impl::is_native<type> || impl::is_one_of<type, table, array>)&&!impl::is_cvref<type>,
"Emplacement type parameter must be one of:" TOML_SA_UNWRAPPED_NODE_TYPE_LIST);
auto nde = new impl::wrap_node<type>{ static_cast<Args&&>(args)... };
elements.emplace_back(nde);
return *nde;
}
void pop_back() noexcept
{
elements.pop_back();
}
TOML_NODISCARD
node* get(size_t index) noexcept;
TOML_NODISCARD
const node* get(size_t index) const noexcept;
template <typename ElemType>
TOML_NODISCARD
impl::wrap_node<ElemType>* get_as(size_t index) noexcept
{
if (auto val = get(index))
return val->as<ElemType>();
return nullptr;
}
template <typename ElemType>
TOML_NODISCARD
const impl::wrap_node<ElemType>* get_as(size_t index) const noexcept
{
if (auto val = get(index))
return val->as<ElemType>();
return nullptr;
}
array& flatten() &;
array&& flatten() &&
{
return static_cast<toml::array&&>(this->flatten());
}
friend bool operator==(const array& lhs, const array& rhs) noexcept;
friend bool operator!=(const array& lhs, const array& rhs) noexcept;
private:
template <typename T>
TOML_NODISCARD
static bool container_equality(const array& lhs, const T& rhs) noexcept
{
using element_type = std::remove_const_t<typename T::value_type>;
static_assert(impl::is_native<element_type> || impl::is_losslessly_convertible_to_native<element_type>,
"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::native_type_of<element_type>>(i++);
if (!elem || *elem != list_elem)
return false;
}
return true;
}
public:
template <typename T>
TOML_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>
TOML_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>);
template <typename Char>
friend std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>&, const array&);
// implemented in toml_default_formatter.h
};
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
//******** impl/table.h **********************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_IMPL_NAMESPACE_START
{
template <bool IsConst>
struct table_proxy_pair final
{
using value_type = std::conditional_t<IsConst, const node, node>;
const std::string& first;
value_type& second;
};
template <bool IsConst>
class table_iterator final
{
private:
template <bool C>
friend class table_iterator;
friend class TOML_NAMESPACE::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;
TOML_NODISCARD
proxy_type* get_proxy() const noexcept
{
if (!proxy_instantiated)
{
auto p = ::new (static_cast<void*>(&proxy)) proxy_type{ raw_->first, *raw_->second.get() };
proxy_instantiated = true;
return p;
}
else
return TOML_LAUNDER(reinterpret_cast<proxy_type*>(&proxy));
}
TOML_NODISCARD_CTOR
table_iterator(raw_mutable_iterator raw) noexcept //
: raw_{ raw }
{}
TOML_CONSTRAINED_TEMPLATE(C, bool C = IsConst)
TOML_NODISCARD_CTOR
table_iterator(raw_const_iterator raw) noexcept //
: raw_{ raw }
{}
public:
TOML_NODISCARD_CTOR
table_iterator() noexcept = default;
TOML_NODISCARD_CTOR
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*;
using difference_type = typename std::iterator_traits<raw_iterator>::difference_type;
using iterator_category = typename std::iterator_traits<raw_iterator>::iterator_category;
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;
}
TOML_NODISCARD
reference operator*() const noexcept
{
return *get_proxy();
}
TOML_NODISCARD
pointer operator->() const noexcept
{
return get_proxy();
}
TOML_NODISCARD
friend bool operator==(const table_iterator& lhs, const table_iterator& rhs) noexcept
{
return lhs.raw_ == rhs.raw_;
}
TOML_NODISCARD
friend bool operator!=(const table_iterator& lhs, const table_iterator& rhs) noexcept
{
return lhs.raw_ != rhs.raw_;
}
TOML_DISABLE_WARNINGS;
TOML_CONSTRAINED_TEMPLATE(!C, bool C = IsConst)
TOML_NODISCARD
operator table_iterator<true>() const noexcept
{
return table_iterator<true>{ raw_ };
}
TOML_ENABLE_WARNINGS;
};
struct table_init_pair final
{
std::string key;
std::unique_ptr<node> value;
template <typename V>
TOML_NODISCARD_CTOR
table_init_pair(std::string&& k, V&& v) noexcept //
: key{ std::move(k) },
value{ make_node(static_cast<V&&>(v)) }
{}
template <typename V>
TOML_NODISCARD_CTOR
table_init_pair(std::string_view k, V&& v) noexcept //
: key{ k },
value{ make_node(static_cast<V&&>(v)) }
{}
template <typename V>
TOML_NODISCARD_CTOR
table_init_pair(const char* k, V&& v) noexcept //
: key{ k },
value{ make_node(static_cast<V&&>(v)) }
{}
#if TOML_WINDOWS_COMPAT
template <typename V>
TOML_NODISCARD_CTOR
table_init_pair(std::wstring&& k, V&& v) noexcept //
: key{ narrow(k) },
value{ make_node(static_cast<V&&>(v)) }
{}
template <typename V>
TOML_NODISCARD_CTOR
table_init_pair(std::wstring_view k, V&& v) noexcept //
: key{ narrow(k) },
value{ make_node(static_cast<V&&>(v)) }
{}
template <typename V>
TOML_NODISCARD_CTOR
table_init_pair(const wchar_t* k, V&& v) noexcept //
: key{ narrow(std::wstring_view{ k }) },
value{ make_node(static_cast<V&&>(v)) }
{}
#endif
};
}
TOML_IMPL_NAMESPACE_END;
TOML_NAMESPACE_START
{
using table_iterator = POXY_IMPLEMENTATION_DETAIL(impl::table_iterator<false>);
using const_table_iterator = POXY_IMPLEMENTATION_DETAIL(impl::table_iterator<true>);
class TOML_API table final : public node
{
private:
friend class TOML_PARSER_TYPENAME;
impl::string_map<std::unique_ptr<node>> map;
bool inline_ = false;
table(impl::table_init_pair*, size_t) noexcept;
template <typename Map, typename Key>
TOML_NODISCARD
static auto do_get(Map& vals, const Key& key) noexcept
-> std::conditional_t<std::is_const_v<Map>, const node*, node*>
{
static_assert(
!impl::is_wide_string<Key> || TOML_WINDOWS_COMPAT,
"Retrieval using wide-character keys is only supported on Windows with TOML_WINDOWS_COMPAT enabled.");
if constexpr (impl::is_wide_string<Key>)
{
#if TOML_WINDOWS_COMPAT
return do_get(vals, impl::narrow(key));
#else
static_assert(impl::dependent_false<Key>, "Evaluated unreachable branch!");
#endif
}
else
{
if (auto it = vals.find(key); it != vals.end())
return { it->second.get() };
return {};
}
}
template <typename T, typename Map, typename Key>
TOML_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>
TOML_NODISCARD
TOML_ALWAYS_INLINE
static bool do_contains(Map& vals, const Key& key) noexcept
{
return do_get(vals, key) != nullptr;
}
public:
using iterator = table_iterator;
using const_iterator = const_table_iterator;
TOML_NODISCARD_CTOR
table() noexcept;
TOML_NODISCARD_CTOR
table(const table&) noexcept;
TOML_NODISCARD_CTOR
table(table&& other) noexcept;
table& operator=(const table&) noexcept;
table& operator=(table&& rhs) noexcept;
#if TOML_LIFETIME_HOOKS
~table() noexcept override
{
TOML_TABLE_DESTROYED;
}
#endif
template <size_t N>
TOML_NODISCARD_CTOR
explicit table(impl::table_init_pair(&&arr)[N]) noexcept //
: table{ arr, N }
{
#if TOML_LIFETIME_HOOKS
TOML_TABLE_CREATED;
#endif
}
TOML_NODISCARD
node_type type() const noexcept override
{
return node_type::table;
}
TOML_NODISCARD
bool is_table() const noexcept override
{
return true;
}
TOML_NODISCARD
bool is_array() const noexcept override
{
return false;
}
TOML_NODISCARD
bool is_value() const noexcept override
{
return false;
}
TOML_NODISCARD
bool is_homogeneous(node_type ntype) const noexcept override;
TOML_NODISCARD
bool is_homogeneous(node_type ntype, node*& first_nonmatch) noexcept override;
TOML_NODISCARD
bool is_homogeneous(node_type ntype, const node*& first_nonmatch) const noexcept override;
template <typename ElemType = void>
TOML_NODISCARD
bool is_homogeneous() const noexcept
{
using type = impl::unwrap_node<ElemType>;
static_assert(
std::is_void_v<
type> || ((impl::is_native<type> || impl::is_one_of<type, table, array>)&&!impl::is_cvref<type>),
"The template type argument of table::is_homogeneous() must be void or one "
"of:" TOML_SA_UNWRAPPED_NODE_TYPE_LIST);
return is_homogeneous(impl::node_type_of<type>);
}
TOML_NODISCARD
table* as_table() noexcept override
{
return this;
}
TOML_NODISCARD
const table* as_table() const noexcept override
{
return this;
}
TOML_NODISCARD
bool is_inline() const noexcept
{
return inline_;
}
void is_inline(bool val) noexcept
{
inline_ = val;
}
TOML_NODISCARD
node_view<node> operator[](std::string_view key) noexcept;
TOML_NODISCARD
node_view<const node> operator[](std::string_view key) const noexcept;
#if TOML_WINDOWS_COMPAT
TOML_NODISCARD
node_view<node> operator[](std::wstring_view key) noexcept;
TOML_NODISCARD
node_view<const node> operator[](std::wstring_view key) const noexcept;
#endif // TOML_WINDOWS_COMPAT
TOML_NODISCARD
iterator begin() noexcept
{
return { map.begin() };
}
TOML_NODISCARD
const_iterator begin() const noexcept
{
return { map.cbegin() };
}
TOML_NODISCARD
const_iterator cbegin() const noexcept
{
return { map.cbegin() };
}
TOML_NODISCARD
iterator end() noexcept
{
return { map.end() };
}
TOML_NODISCARD
const_iterator end() const noexcept
{
return { map.cend() };
}
TOML_NODISCARD
const_iterator cend() const noexcept
{
return { map.cend() };
}
TOML_NODISCARD
bool empty() const noexcept
{
return map.empty();
}
TOML_NODISCARD
size_t size() const noexcept
{
return map.size();
}
void clear() noexcept
{
map.clear();
}
TOML_CONSTRAINED_TEMPLATE((std::is_convertible_v<KeyType&&, std::string_view> || impl::is_wide_string<KeyType>),
typename KeyType,
typename ValueType)
std::pair<iterator, bool> insert(KeyType&& key, ValueType&& val) noexcept
{
static_assert(
!impl::is_wide_string<KeyType> || TOML_WINDOWS_COMPAT,
"Insertion using wide-character keys is only supported on Windows with TOML_WINDOWS_COMPAT enabled.");
if constexpr (is_node_view<ValueType>)
{
if (!val)
return { end(), false };
}
if constexpr (impl::is_wide_string<KeyType>)
{
#if TOML_WINDOWS_COMPAT
return insert(impl::narrow(std::forward<KeyType>(key)), std::forward<ValueType>(val));
#else
static_assert(impl::dependent_false<KeyType>, "Evaluated unreachable branch!");
#endif
}
else
{
auto ipos = map.lower_bound(key);
if (ipos == map.end() || ipos->first != key)
{
ipos = map.emplace_hint(ipos,
std::forward<KeyType>(key),
impl::make_node(std::forward<ValueType>(val)));
return { iterator{ ipos }, true };
}
return { iterator{ ipos }, false };
}
}
TOML_CONSTRAINED_TEMPLATE((!std::is_convertible_v<Iter, std::string_view> && !impl::is_wide_string<Iter>),
typename Iter)
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 KeyType, typename ValueType>
std::pair<iterator, bool> insert_or_assign(KeyType&& key, ValueType&& val) noexcept
{
static_assert(
!impl::is_wide_string<KeyType> || TOML_WINDOWS_COMPAT,
"Insertion using wide-character keys is only supported on Windows with TOML_WINDOWS_COMPAT enabled.");
if constexpr (is_node_view<ValueType>)
{
if (!val)
return { end(), false };
}
if constexpr (impl::is_wide_string<KeyType>)
{
#if TOML_WINDOWS_COMPAT
return insert_or_assign(impl::narrow(std::forward<KeyType>(key)), std::forward<ValueType>(val));
#else
static_assert(impl::dependent_false<KeyType>, "Evaluated unreachable branch!");
#endif
}
else
{
auto ipos = map.lower_bound(key);
if (ipos == map.end() || ipos->first != key)
{
ipos = map.emplace_hint(ipos,
std::forward<KeyType>(key),
impl::make_node(std::forward<ValueType>(val)));
return { iterator{ ipos }, true };
}
else
{
(*ipos).second.reset(impl::make_node(std::forward<ValueType>(val)));
return { iterator{ ipos }, false };
}
}
}
template <typename ValueType, typename KeyType, typename... ValueArgs>
std::pair<iterator, bool> emplace(KeyType&& key, ValueArgs&&... args) noexcept
{
static_assert(
!impl::is_wide_string<KeyType> || TOML_WINDOWS_COMPAT,
"Emplacement using wide-character keys is only supported on Windows with TOML_WINDOWS_COMPAT enabled.");
if constexpr (impl::is_wide_string<KeyType>)
{
#if TOML_WINDOWS_COMPAT
return emplace<ValueType>(impl::narrow(std::forward<KeyType>(key)), std::forward<ValueArgs>(args)...);
#else
static_assert(impl::dependent_false<KeyType>, "Evaluated unreachable branch!");
#endif
}
else
{
using type = impl::unwrap_node<ValueType>;
static_assert((impl::is_native<type> || impl::is_one_of<type, table, array>)&&!impl::is_cvref<type>,
"The emplacement type argument of table::emplace() must be one "
"of:" TOML_SA_UNWRAPPED_NODE_TYPE_LIST);
auto ipos = map.lower_bound(key);
if (ipos == map.end() || ipos->first != key)
{
ipos = map.emplace_hint(ipos,
std::forward<KeyType>(key),
new impl::wrap_node<type>{ std::forward<ValueArgs>(args)... });
return { iterator{ ipos }, true };
}
return { iterator{ ipos }, false };
}
}
iterator erase(iterator pos) noexcept
{
return { map.erase(pos.raw_) };
}
iterator erase(const_iterator pos) noexcept
{
return { map.erase(pos.raw_) };
}
iterator erase(const_iterator first, const_iterator last) noexcept
{
return { map.erase(first.raw_, last.raw_) };
}
bool erase(std::string_view key) noexcept
{
if (auto it = map.find(key); it != map.end())
{
map.erase(it);
return true;
}
return false;
}
#if TOML_WINDOWS_COMPAT
bool erase(std::wstring_view key) noexcept
{
return erase(impl::narrow(key));
}
#endif // TOML_WINDOWS_COMPAT
TOML_NODISCARD
iterator find(std::string_view key) noexcept
{
return { map.find(key) };
}
TOML_NODISCARD
const_iterator find(std::string_view key) const noexcept
{
return { map.find(key) };
}
TOML_NODISCARD
bool contains(std::string_view key) const noexcept
{
return do_contains(map, key);
}
#if TOML_WINDOWS_COMPAT
TOML_NODISCARD
iterator find(std::wstring_view key) noexcept
{
return find(impl::narrow(key));
}
TOML_NODISCARD
const_iterator find(std::wstring_view key) const noexcept
{
return find(impl::narrow(key));
}
TOML_NODISCARD
bool contains(std::wstring_view key) const noexcept
{
return contains(impl::narrow(key));
}
#endif // TOML_WINDOWS_COMPAT
TOML_NODISCARD
node* get(std::string_view key) noexcept
{
return do_get(map, key);
}
TOML_NODISCARD
const node* get(std::string_view key) const noexcept
{
return do_get(map, key);
}
#if TOML_WINDOWS_COMPAT
TOML_NODISCARD
node* get(std::wstring_view key) noexcept
{
return get(impl::narrow(key));
}
TOML_NODISCARD
const node* get(std::wstring_view key) const noexcept
{
return get(impl::narrow(key));
}
#endif // TOML_WINDOWS_COMPAT
template <typename ValueType>
TOML_NODISCARD
impl::wrap_node<ValueType>* get_as(std::string_view key) noexcept
{
return do_get_as<ValueType>(map, key);
}
template <typename ValueType>
TOML_NODISCARD
const impl::wrap_node<ValueType>* get_as(std::string_view key) const noexcept
{
return do_get_as<ValueType>(map, key);
}
#if TOML_WINDOWS_COMPAT
template <typename ValueType>
TOML_NODISCARD
impl::wrap_node<ValueType>* get_as(std::wstring_view key) noexcept
{
return get_as<ValueType>(impl::narrow(key));
}
template <typename ValueType>
TOML_NODISCARD
const impl::wrap_node<ValueType>* get_as(std::wstring_view key) const noexcept
{
return get_as<ValueType>(impl::narrow(key));
}
#endif // TOML_WINDOWS_COMPAT
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&);
// implemented in toml_default_formatter.h
};
#ifndef DOXYGEN
// template <typename T>
// inline std::vector<T> node::select_exact() const noexcept
//{
// using namespace impl;
// static_assert(
// !is_wide_string<T> || TOML_WINDOWS_COMPAT,
// "Retrieving values as wide-character strings with node::select_exact() is only "
// "supported on Windows with TOML_WINDOWS_COMPAT enabled."
// );
// static_assert(
// (is_native<T> || can_represent_native<T>) && !is_cvref<T>,
// TOML_SA_VALUE_EXACT_FUNC_MESSAGE("return type of node::select_exact()")
// );
//}
// template <typename T>
// inline std::vector<T> node::select() const noexcept
//{
// using namespace impl;
// static_assert(
// !is_wide_string<T> || TOML_WINDOWS_COMPAT,
// "Retrieving values as wide-character strings with node::select() is only "
// "supported on Windows with TOML_WINDOWS_COMPAT enabled."
// );
// static_assert(
// (is_native<T> || can_represent_native<T> || can_partially_represent_native<T>) && !is_cvref<T>,
// TOML_SA_VALUE_FUNC_MESSAGE("return type of node::select()")
// );
//}
#endif // !DOXYGEN
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
//******** impl/node_view.h ******************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_DISABLE_ARITHMETIC_WARNINGS;
TOML_NAMESPACE_START
{
template <typename ViewedType>
class TOML_API TOML_TRIVIAL_ABI node_view
{
static_assert(impl::is_one_of<ViewedType, toml::node, const toml::node>,
"A toml::node_view<> must wrap toml::node or const toml::node.");
public:
using viewed_type = ViewedType;
private:
template <typename T>
friend class TOML_NAMESPACE::node_view;
mutable viewed_type* node_ = nullptr;
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;
TOML_NODISCARD_CTOR
explicit node_view(viewed_type* node) noexcept //
: node_{ node }
{}
TOML_NODISCARD_CTOR
explicit node_view(viewed_type& node) noexcept //
: node_{ &node }
{}
TOML_NODISCARD_CTOR
node_view(const node_view&) noexcept = default;
node_view& operator=(const node_view&) & noexcept = default;
TOML_NODISCARD_CTOR
node_view(node_view&&) noexcept = default;
node_view& operator=(node_view&&) & noexcept = default;
TOML_NODISCARD
explicit operator bool() const noexcept
{
return node_ != nullptr;
}
TOML_NODISCARD
viewed_type* node() const noexcept
{
return node_;
}
TOML_NODISCARD
node_type type() const noexcept
{
return node_ ? node_->type() : node_type::none;
}
TOML_NODISCARD
bool is_table() const noexcept
{
return node_ && node_->is_table();
}
TOML_NODISCARD
bool is_array() const noexcept
{
return node_ && node_->is_array();
}
TOML_NODISCARD
bool is_value() const noexcept
{
return node_ && node_->is_value();
}
TOML_NODISCARD
bool is_string() const noexcept
{
return node_ && node_->is_string();
}
TOML_NODISCARD
bool is_integer() const noexcept
{
return node_ && node_->is_integer();
}
TOML_NODISCARD
bool is_floating_point() const noexcept
{
return node_ && node_->is_floating_point();
}
TOML_NODISCARD
bool is_number() const noexcept
{
return node_ && node_->is_number();
}
TOML_NODISCARD
bool is_boolean() const noexcept
{
return node_ && node_->is_boolean();
}
TOML_NODISCARD
bool is_date() const noexcept
{
return node_ && node_->is_date();
}
TOML_NODISCARD
bool is_time() const noexcept
{
return node_ && node_->is_time();
}
TOML_NODISCARD
bool is_date_time() const noexcept
{
return node_ && node_->is_date_time();
}
TOML_NODISCARD
bool is_array_of_tables() const noexcept
{
return node_ && node_->is_array_of_tables();
}
template <typename T>
TOML_NODISCARD
bool is() const noexcept
{
return node_ ? node_->template is<T>() : false;
}
TOML_NODISCARD
bool is_homogeneous(node_type ntype, viewed_type*& first_nonmatch) const noexcept
{
if (!node_)
{
first_nonmatch = {};
return false;
}
return node_->is_homogeneous(ntype, first_nonmatch);
}
TOML_NODISCARD
bool is_homogeneous(node_type ntype) const noexcept
{
return node_ ? node_->is_homogeneous(ntype) : false;
}
template <typename ElemType = void>
TOML_NODISCARD
bool is_homogeneous() const noexcept
{
return node_ ? node_->template is_homogeneous<impl::unwrap_node<ElemType>>() : false;
}
TOML_NODISCARD
auto as_table() const noexcept
{
return as<table>();
}
TOML_NODISCARD
auto as_array() const noexcept
{
return as<array>();
}
TOML_NODISCARD
auto as_string() const noexcept
{
return as<std::string>();
}
TOML_NODISCARD
auto as_integer() const noexcept
{
return as<int64_t>();
}
TOML_NODISCARD
auto as_floating_point() const noexcept
{
return as<double>();
}
TOML_NODISCARD
auto as_boolean() const noexcept
{
return as<bool>();
}
TOML_NODISCARD
auto as_date() const noexcept
{
return as<date>();
}
TOML_NODISCARD
auto as_time() const noexcept
{
return as<time>();
}
TOML_NODISCARD
auto as_date_time() const noexcept
{
return as<date_time>();
}
template <typename T>
TOML_NODISCARD
auto as() const noexcept
{
return node_ ? node_->template as<T>() : nullptr;
}
template <typename T>
TOML_NODISCARD
optional<T> value_exact() const noexcept
{
if (node_)
return node_->template value_exact<T>();
return {};
}
TOML_PUSH_WARNINGS;
TOML_DISABLE_INIT_WARNINGS;
template <typename T>
TOML_NODISCARD
optional<T> value() const noexcept
{
if (node_)
return node_->template value<T>();
return {};
}
TOML_POP_WARNINGS;
template <typename T>
TOML_NODISCARD
auto value_or(T&& default_value) const noexcept
{
using namespace ::toml::impl;
static_assert(!is_wide_string<T> || TOML_WINDOWS_COMPAT,
"Retrieving values as wide-character strings is only "
"supported on Windows with TOML_WINDOWS_COMPAT enabled.");
if constexpr (is_wide_string<T>)
{
#if TOML_WINDOWS_COMPAT
if (node_)
return node_->value_or(static_cast<T&&>(default_value));
return std::wstring{ static_cast<T&&>(default_value) };
#else
static_assert(impl::dependent_false<T>, "Evaluated unreachable branch!");
#endif
}
else
{
using value_type =
std::conditional_t<std::is_pointer_v<std::decay_t<T>>,
std::add_pointer_t<std::add_const_t<std::remove_pointer_t<std::decay_t<T>>>>,
std::decay_t<T>>;
if (node_)
return node_->value_or(static_cast<T&&>(default_value));
if constexpr (std::is_pointer_v<value_type>)
return value_type{ default_value };
else
return static_cast<T&&>(default_value);
}
}
template <typename T>
TOML_NODISCARD
decltype(auto) ref() const noexcept
{
TOML_ASSERT(node_ && "toml::node_view::ref() called on a node_view that did not reference a node");
return node_->template ref<impl::unwrap_node<T>>();
}
template <typename Func>
decltype(auto) visit(Func&& visitor) const noexcept(visit_is_nothrow<Func&&>)
{
using return_type = decltype(node_->visit(static_cast<Func&&>(visitor)));
if (node_)
return node_->visit(static_cast<Func&&>(visitor));
if constexpr (!std::is_void_v<return_type>)
return return_type{};
}
TOML_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&, );
TOML_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 T>
TOML_NODISCARD
friend bool operator==(const node_view& lhs, const toml::value<T>& rhs) noexcept
{
if (lhs.node_ == &rhs)
return true;
const auto val = lhs.as<T>();
return val && *val == rhs;
}
TOML_ASYMMETRICAL_EQUALITY_OPS(const node_view&, const toml::value<T>&, template <typename T>);
TOML_CONSTRAINED_TEMPLATE((impl::is_native<T> || impl::is_losslessly_convertible_to_native<T>), typename T)
TOML_NODISCARD
friend bool operator==(const node_view& lhs, const T& rhs) noexcept
{
static_assert(!impl::is_wide_string<T> || TOML_WINDOWS_COMPAT,
"Comparison with wide-character strings is only "
"supported on Windows with TOML_WINDOWS_COMPAT enabled.");
if constexpr (impl::is_wide_string<T>)
{
#if TOML_WINDOWS_COMPAT
return lhs == impl::narrow(rhs);
#else
static_assert(impl::dependent_false<T>, "Evaluated unreachable branch!");
#endif
}
else
{
const auto val = lhs.as<impl::native_type_of<T>>();
return val && *val == rhs;
}
}
TOML_ASYMMETRICAL_EQUALITY_OPS(
const node_view&,
const T&,
TOML_CONSTRAINED_TEMPLATE((impl::is_native<T> || impl::is_losslessly_convertible_to_native<T>),
typename T));
template <typename T>
TOML_NODISCARD
friend bool operator==(const node_view& lhs, const std::initializer_list<T>& rhs) noexcept
{
const auto arr = lhs.as<array>();
return arr && *arr == rhs;
}
TOML_ASYMMETRICAL_EQUALITY_OPS(const node_view&, const std::initializer_list<T>&, template <typename T>);
template <typename T>
TOML_NODISCARD
friend bool operator==(const node_view& lhs, const std::vector<T>& rhs) noexcept
{
const auto arr = lhs.as<array>();
return arr && *arr == rhs;
}
TOML_ASYMMETRICAL_EQUALITY_OPS(const node_view&, const std::vector<T>&, template <typename T>);
TOML_NODISCARD
node_view operator[](std::string_view key) const noexcept
{
if (auto tbl = this->as_table())
return node_view{ tbl->get(key) };
return node_view{ nullptr };
}
#if TOML_WINDOWS_COMPAT
TOML_NODISCARD
node_view operator[](std::wstring_view key) const noexcept
{
if (auto tbl = this->as_table())
return node_view{ tbl->get(key) };
return node_view{ nullptr };
}
#endif // TOML_WINDOWS_COMPAT
TOML_NODISCARD
node_view operator[](size_t index) const noexcept
{
if (auto arr = this->as_array())
return node_view{ arr->get(index) };
return node_view{ nullptr };
}
template <typename Char, typename T>
friend std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>&, const node_view<T>&);
};
template <typename T>
node_view(const value<T>&) -> node_view<const node>;
node_view(const table&)->node_view<const node>;
node_view(const array&)->node_view<const node>;
template <typename T>
node_view(value<T>&) -> node_view<node>;
node_view(table&)->node_view<node>;
node_view(array&)->node_view<node>;
template <typename T>
node_view(const T*) -> node_view<const node>;
template <typename T>
node_view(T*) -> node_view<node>;
template <typename Char, typename T>
inline 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 !defined(DOXYGEN) && !TOML_HEADER_ONLY
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>&);
#define TOML_EXTERN(name, T) \
extern template TOML_API \
optional<T> node_view<node>::name<T>() const noexcept; \
extern template TOML_API \
optional<T> node_view<const node>::name<T>() const noexcept
TOML_EXTERN(value_exact, std::string_view);
TOML_EXTERN(value_exact, std::string);
TOML_EXTERN(value_exact, const char*);
TOML_EXTERN(value_exact, int64_t);
TOML_EXTERN(value_exact, double);
TOML_EXTERN(value_exact, date);
TOML_EXTERN(value_exact, time);
TOML_EXTERN(value_exact, date_time);
TOML_EXTERN(value_exact, bool);
TOML_EXTERN(value, std::string_view);
TOML_EXTERN(value, std::string);
TOML_EXTERN(value, const char*);
TOML_EXTERN(value, signed char);
TOML_EXTERN(value, signed short);
TOML_EXTERN(value, signed int);
TOML_EXTERN(value, signed long);
TOML_EXTERN(value, signed long long);
TOML_EXTERN(value, unsigned char);
TOML_EXTERN(value, unsigned short);
TOML_EXTERN(value, unsigned int);
TOML_EXTERN(value, unsigned long);
TOML_EXTERN(value, unsigned long long);
TOML_EXTERN(value, double);
TOML_EXTERN(value, float);
TOML_EXTERN(value, date);
TOML_EXTERN(value, time);
TOML_EXTERN(value, date_time);
TOML_EXTERN(value, bool);
#if TOML_HAS_CHAR8
TOML_EXTERN(value_exact, std::u8string_view);
TOML_EXTERN(value_exact, std::u8string);
TOML_EXTERN(value_exact, const char8_t*);
TOML_EXTERN(value, std::u8string_view);
TOML_EXTERN(value, std::u8string);
TOML_EXTERN(value, const char8_t*);
#endif
#if TOML_WINDOWS_COMPAT
TOML_EXTERN(value_exact, std::wstring);
TOML_EXTERN(value, std::wstring);
#endif
#undef TOML_EXTERN
#endif // !TOML_HEADER_ONLY
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
//******** impl/utf8.h ***********************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_IMPL_NAMESPACE_START
{
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_ascii_whitespace(char32_t codepoint) noexcept
{
return codepoint == U'\t' || codepoint == U' ';
}
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_non_ascii_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
;
}
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_whitespace(char32_t codepoint) noexcept
{
return is_ascii_whitespace(codepoint) || is_non_ascii_whitespace(codepoint);
}
template <bool IncludeCarriageReturn = true>
TOML_NODISCARD
TOML_ATTR(const)
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);
}
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_non_ascii_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>
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_line_break(char32_t codepoint) noexcept
{
return is_ascii_line_break<IncludeCarriageReturn>(codepoint) || is_non_ascii_line_break(codepoint);
}
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_string_delimiter(char32_t codepoint) noexcept
{
return codepoint == U'"' || codepoint == U'\'';
}
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_ascii_letter(char32_t codepoint) noexcept
{
return (codepoint >= U'a' && codepoint <= U'z') || (codepoint >= U'A' && codepoint <= U'Z');
}
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_binary_digit(char32_t codepoint) noexcept
{
return codepoint == U'0' || codepoint == U'1';
}
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_octal_digit(char32_t codepoint) noexcept
{
return (codepoint >= U'0' && codepoint <= U'7');
}
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_decimal_digit(char32_t codepoint) noexcept
{
return (codepoint >= U'0' && codepoint <= U'9');
}
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_hexadecimal_digit(char32_t c) noexcept
{
return U'0' <= c && c <= U'f' && (1ull << (static_cast<uint_least64_t>(c) - 0x30u)) & 0x7E0000007E03FFull;
}
template <typename T>
TOML_NODISCARD
TOML_ATTR(const)
constexpr uint_least32_t hex_to_dec(const T codepoint) noexcept
{
if constexpr (std::is_same_v<remove_cvref_t<T>, uint_least32_t>)
return codepoint >= 0x41u // >= 'A'
? 10u + (codepoint | 0x20u) - 0x61u // - 'a'
: codepoint - 0x30u // - '0'
;
else
return hex_to_dec(static_cast<uint_least32_t>(codepoint));
}
#if TOML_LANG_UNRELEASED // toml/issues/687 (unicode bare keys)
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_non_ascii_letter(char32_t c) noexcept
{
if (U'\xAA' > c || c > U'\U0003134A')
return false;
const auto child_index_0 = (static_cast<uint_least64_t>(c) - 0xAAull) / 0xC4Bull;
if ((1ull << child_index_0) & 0x26180C0000ull)
return false;
if ((1ull << child_index_0) & 0x8A7FFC004001DFA0ull)
return true;
switch (child_index_0)
{
case 0x00: // [0] 00AA - 0CF4
{
if (c > U'\u0CF2')
return false;
TOML_ASSUME(U'\xAA' <= c);
constexpr uint_least64_t bitmask_table_1[] = {
0xFFFFDFFFFFC10801u, 0xFFFFFFFFFFFFDFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0x07C000FFF0FFFFFFu, 0x0000000000000014u, 0x0000000000000000u, 0xFEFFFFF5D02F37C0u,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFEFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFF00FFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFC09FFFFFFFFFBFu, 0x000000007FFFFFFFu,
0xFFFFFFC000000000u, 0xFFC00000000001E1u, 0x00000001FFFFFFFFu, 0xFFFFFFFFFFFFFFB0u,
0x18000BFFFFFFFFFFu, 0xFFFFFF4000270030u, 0xFFFFFFF80000003Fu, 0x0FFFFFFFFFFFFFFFu,
0xFFFFFFFF00000080u, 0x44010FFFFFC10C01u, 0xFFC07FFFFFC00000u, 0xFFC0001FBFFFFFC1u,
0x00000000FFFFFFFFu, 0xFFFFFFFFFC000000u, 0x00FFC0400008FFFFu, 0x7FFFFE67F87FFF80u,
0x00EC00100008F17Fu, 0x7FFFFE61F80400C0u, 0x001780000000DB7Fu, 0x7FFFFEEFF8000700u,
0x00C000400008FB7Fu, 0x7FFFFE67F8008000u, 0x00EC00000008FB7Fu, 0xC6358F71FA000080u,
0x000000400000FFF1u, 0x7FFFFF77F8000000u, 0x00C9C0000008FFFFu, 0x7FFFFF77F8400000u,
0x00D800000008FBFFu, 0x0000000000000180u,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0xAAull) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0xAAull) % 0x40ull));
// 1957 code units from 126 ranges (spanning a search area of 3145)
}
case 0x01: // [1] 0CF5 - 193F
{
if (U'\u0D04' > c || c > U'\u191E')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0x027FFFFFFFFFDDFFu, 0x0FC0000038070400u, 0xF2FFBFFFFFC7FFFEu, 0xE000000000000007u,
0xF000DFFFFFFFFFFFu, 0x6000000000000007u, 0xF200DFFAFFFFFF7Du, 0x100000000F000005u,
0xF000000000000000u, 0x000001FFFFFFFFEFu, 0x00000000000001F0u, 0xF000000000000000u,
0x0800007FFFFFFFFFu, 0x3FFE1C0623C3F000u, 0xFFFFFFFFF0000400u, 0xFF7FFFFFFFFFF20Bu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFF3D7F3DFu, 0xD7F3DFFFFFFFF3DFu, 0xFFFFFFFFFFF7FFF3u,
0xFFFFFFFFFFF3DFFFu, 0xF0000000007FFFFFu, 0xFFFFFFFFF0000FFFu, 0xE3F3FFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xEFFFF9FFFFFFFFFFu, 0xFFFFFFFFF07FFFFFu, 0xF01FE07FFFFFFFFFu,
0xF0003FFFF8003FFFu, 0xF0001DFFF0003FFFu, 0x0000FFFFFFFFFFFFu, 0x0000000001080000u,
0xFFFFFFFFF0000000u, 0xF01FFFFFFFFFFFFFu, 0xFFFFF05FFFFFFFF9u, 0xF003FFFFFFFFFFFFu,
0x0000000007FFFFFFu,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0xD04ull) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0xD04ull) % 0x40ull));
// 2241 code units from 82 ranges (spanning a search area of 3099)
}
case 0x02: // [2] 1940 - 258A
{
if (U'\u1950' > c || c > U'\u2184')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0xFFFF001F3FFFFFFFu, 0x03FFFFFF0FFFFFFFu, 0xFFFF000000000000u, 0xFFFFFFFFFFFF007Fu,
0x000000000000001Fu, 0x0000000000800000u, 0xFFE0000000000000u, 0x1FE0000FFFFFFFFFu,
0xFFF8000000000000u, 0xFFFFFC00C001FFFFu, 0xFFFF0000003FFFFFu, 0xE0000000000FFFFFu,
0x01FF3FFFFFFFFC00u, 0x0000E7FFFFFFFFFFu, 0xFFFF046FDE000000u, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0x0000FFFFFFFFFFFFu, 0xFFFF000000000000u, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0x3F3FFFFFFFFF3F3Fu,
0xFFFF3FFFFFFFAAFFu, 0x1FDC5FDFFFFFFFFFu, 0x00001FDC1FFF0FCFu, 0x0000000000000000u,
0x0000800200000000u, 0x0000000000001FFFu, 0xFC84000000000000u, 0x43E0F3FFBD503E2Fu,
0x0018000000000000u,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x1950ull) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0x1950ull) % 0x40ull));
// 1185 code units from 59 ranges (spanning a search area of 2101)
}
case 0x03: // [3] 258B - 31D5
{
if (U'\u2C00' > c || c > U'\u31BF')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0x000C781FFFFFFFFFu,
0xFFFF20BFFFFFFFFFu, 0x000080FFFFFFFFFFu, 0x7F7F7F7F007FFFFFu, 0x000000007F7F7F7Fu,
0x0000800000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x183E000000000060u, 0xFFFFFFFFFFFFFFFEu, 0xFFFFFFFEE07FFFFFu, 0xF7FFFFFFFFFFFFFFu,
0xFFFEFFFFFFFFFFE0u, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFF00007FFFu,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x2C00ull) / 0x40ull]
& (0x1ull << (static_cast<uint_least64_t>(c) % 0x40ull));
// 773 code units from 28 ranges (spanning a search area of 1472)
}
case 0x04: return (U'\u31F0' <= c && c <= U'\u31FF') || U'\u3400' <= c;
case 0x06: return c <= U'\u4DBF' || U'\u4E00' <= c;
case 0x0D: // [13] A079 - ACC3
{
TOML_ASSUME(U'\uA079' <= c && c <= U'\uACC3');
constexpr uint_least64_t bitmask_table_1[] = {
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0x00000000000FFFFFu, 0xFFFFFFFFFF800000u, 0xFFFFFFFFFFFFFF9Fu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0x0006007FFF8FFFFFu, 0x003FFFFFFFFFFF80u,
0xFFFFFF9FFFFFFFC0u, 0x00001FFFFFFFFFFFu, 0xFFFFFE7FC0000000u, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFCFFFFu, 0xFE000001F583FFFFu, 0x000003FFFFFBDDFFu, 0x07FFFFFFFFFFFF80u,
0x07FFFFFFFFFFFE00u, 0x7E00000000000000u, 0xFF801FFFFFFE0034u, 0xFFFFFF8000003FFFu,
0x03FFFFFFFFFFF80Fu, 0x007FEF8000400000u, 0x0000FFFFFFFFFFBEu, 0x3FFFFF800007FB80u,
0x317FFFFFFFFFFFE2u, 0x0E03FF9C0000029Fu, 0xFFBFBF803F3F3F00u, 0xFF81FFFBFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0x000003FFFFFFFFFFu, 0xFFFFFFFFFFFFFF80u, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0x00000000000007FFu,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0xA079ull) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0xA079ull) % 0x40ull));
// 2567 code units from 54 ranges (spanning a search area of 3147)
}
case 0x11:
return c <= U'\uD7A3' || (U'\uD7B0' <= c && c <= U'\uD7C6') || (U'\uD7CB' <= c && c <= U'\uD7FB');
case 0x14: // [20] F686 - 102D0
{
if (U'\uF900' > c)
return false;
TOML_ASSUME(c <= U'\U000102D0');
constexpr uint_least64_t bitmask_table_1[] = {
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFF3FFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0x0000000003FFFFFFu,
0x5F7FFDFFA0F8007Fu, 0xFFFFFFFFFFFFFFDBu, 0x0003FFFFFFFFFFFFu, 0xFFFFFFFFFFF80000u,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0x3FFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFF0000u, 0xFFFFFFFFFFFCFFFFu, 0x0FFF0000000000FFu,
0x0000000000000000u, 0xFFDF000000000000u, 0xFFFFFFFFFFFFFFFFu, 0x1FFFFFFFFFFFFFFFu,
0x07FFFFFE00000000u, 0xFFFFFFC007FFFFFEu, 0x7FFFFFFFFFFFFFFFu, 0x000000001CFCFCFCu,
0xB7FFFF7FFFFFEFFFu, 0x000000003FFF3FFFu, 0xFFFFFFFFFFFFFFFFu, 0x07FFFFFFFFFFFFFFu,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0xFFFFFFFF1FFFFFFFu, 0x000000000001FFFFu,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0xF900ull) / 0x40ull]
& (0x1ull << (static_cast<uint_least64_t>(c) % 0x40ull));
// 1710 code units from 34 ranges (spanning a search area of 2513)
}
case 0x15: // [21] 102D1 - 10F1B
{
if (U'\U00010300' > c)
return false;
TOML_ASSUME(c <= U'\U00010F1B');
constexpr uint_least64_t bitmask_table_1[] = {
0xFFFFE000FFFFFFFFu, 0x003FFFFFFFFF03FDu, 0xFFFFFFFF3FFFFFFFu, 0x000000000000FF0Fu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFF00003FFFFFFFu, 0x0FFFFFFFFF0FFFFFu,
0xFFFF00FFFFFFFFFFu, 0xF7FF000FFFFFFFFFu, 0x1BFBFFFBFFB7F7FFu, 0x0000000000000000u,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0x007FFFFFFFFFFFFFu, 0x000000FF003FFFFFu, 0x07FDFFFFFFFFFFBFu, 0x0000000000000000u,
0x91BFFFFFFFFFFD3Fu, 0x007FFFFF003FFFFFu, 0x000000007FFFFFFFu, 0x0037FFFF00000000u,
0x03FFFFFF003FFFFFu, 0x0000000000000000u, 0xC0FFFFFFFFFFFFFFu, 0x0000000000000000u,
0x003FFFFFFEEF0001u, 0x1FFFFFFF00000000u, 0x000000001FFFFFFFu, 0x0000001FFFFFFEFFu,
0x003FFFFFFFFFFFFFu, 0x0007FFFF003FFFFFu, 0x000000000003FFFFu, 0x0000000000000000u,
0xFFFFFFFFFFFFFFFFu, 0x00000000000001FFu, 0x0007FFFFFFFFFFFFu, 0x0007FFFFFFFFFFFFu,
0x0000000FFFFFFFFFu, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x000303FFFFFFFFFFu, 0x0000000000000000u,
0x000000000FFFFFFFu,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x10300ull) / 0x40ull]
& (0x1ull << (static_cast<uint_least64_t>(c) % 0x40ull));
// 1747 code units from 59 ranges (spanning a search area of 3100)
}
case 0x16: // [22] 10F1C - 11B66
{
if (c > U'\U00011AF8')
return false;
TOML_ASSUME(U'\U00010F1C' <= c);
constexpr uint_least64_t bitmask_table_1[] = {
0x000003FFFFF00801u, 0x0000003FFFF00000u, 0x000001FFFFF00000u, 0xFFFFFF8007FFFFF0u,
0x000000000FFFFFFFu, 0xFFFFFF8002600000u, 0xFFF00000000FFFFFu, 0xFFFFFF8000001FFFu,
0xFFF00900000007FFu, 0xFFFFFF80047FFFFFu, 0x400001E0007FFFFFu, 0xFFBFFFF000000001u,
0x000000000000FFFFu, 0xFFFBD7F000000000u, 0xFFFFFFFFFFF01FFBu, 0xFF99FE0000000007u,
0x001000023EDFDFFFu, 0x000000000000003Eu, 0x0000000000000000u, 0xFFFFFFF000000000u,
0x0000780001FFFFFFu, 0xFFFFFFF000000038u, 0x00000B00000FFFFFu, 0x0000000000000000u,
0x0000000000000000u, 0xFFFFFFF000000000u, 0xF00000000007FFFFu, 0xFFFFFFF000000000u,
0x00000100000FFFFFu, 0xFFFFFFF000000000u, 0x0000000010007FFFu, 0x7FFFFFF000000000u,
0x000007F000000000u, 0x0000000000000000u, 0x0000000000000000u, 0xFFFFFFF000000000u,
0x000000000000FFFFu, 0x0000000000000000u, 0xFFFFFFFFFFFFFFF0u, 0xF6FF27F80000000Fu,
0x00000028000FFFFFu, 0x0000000000000000u, 0x001FFFFFFFFFCFF0u, 0xFFFF8010000000A0u,
0x00100000407FFFFFu, 0x00003FFFFFFFFFFFu, 0xFFFFFFFFFFF00002u, 0x000000001FFFFFFFu,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x10F1Cull) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0x10F1Cull) % 0x40ull));
// 1174 code units from 71 ranges (spanning a search area of 3037)
}
case 0x17: // [23] 11B67 - 127B1
{
if (U'\U00011C00' > c || c > U'\U00012543')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0x00007FFFFFFFFDFFu, 0xFFFC000000000001u, 0x000000000000FFFFu, 0x0000000000000000u,
0x0001FFFFFFFFFB7Fu, 0xFFFFFDBF00000040u, 0x00000000010003FFu, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0007FFFF00000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0001000000000000u, 0x0000000000000000u,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0x0000000003FFFFFFu, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0x000000000000000Fu,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x11C00ull) / 0x40ull]
& (0x1ull << (static_cast<uint_least64_t>(c) % 0x40ull));
// 1304 code units from 16 ranges (spanning a search area of 2372)
}
case 0x18: return (U'\U00012F90' <= c && c <= U'\U00012FF0') || U'\U00013000' <= c;
case 0x19: return c <= U'\U0001342E';
case 0x1A: return U'\U00014400' <= c && c <= U'\U00014646';
case 0x1D: // [29] 16529 - 17173
{
if (U'\U00016800' > c)
return false;
TOML_ASSUME(c <= U'\U00017173');
constexpr uint_least64_t bitmask_table_1[] = {
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0x01FFFFFFFFFFFFFFu, 0xFFFF00007FFFFFFFu, 0x7FFFFFFFFFFFFFFFu, 0x00003FFFFFFF0000u,
0x0000FFFFFFFFFFFFu, 0xE0FFFFF80000000Fu, 0x000000000000FFFFu, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0xFFFFFFFFFFFFFFFFu, 0x0000000000000000u, 0x0000000000000000u,
0xFFFFFFFFFFFFFFFFu, 0x00000000000107FFu, 0x00000000FFF80000u, 0x0000000B00000000u,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0x000FFFFFFFFFFFFFu,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x16800ull) / 0x40ull]
& (0x1ull << (static_cast<uint_least64_t>(c) % 0x40ull));
// 1329 code units from 15 ranges (spanning a search area of 2420)
}
case 0x1F: return c <= U'\U000187F7' || U'\U00018800' <= c;
case 0x20: return c <= U'\U00018CD5' || (U'\U00018D00' <= c && c <= U'\U00018D08');
case 0x23: // [35] 1AEEB - 1BB35
{
if (U'\U0001AFF0' > c || c > U'\U0001B2FB')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0xFFFFFFFFFFFF6FEFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0x0007FFFFFFFFFFFFu, 0x00F0000700000000u, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0x0000000000000FFFu,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x1AFF0ull) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0x1AFF0ull) % 0x40ull));
// 707 code units from 7 ranges (spanning a search area of 780)
}
case 0x24: // [36] 1BB36 - 1C780
{
if (U'\U0001BC00' > c || c > U'\U0001BC99')
return false;
switch ((static_cast<uint_least64_t>(c) - 0x1BC00ull) / 0x40ull)
{
case 0x01:
return c <= U'\U0001BC7C'
&& (1ull << (static_cast<uint_least64_t>(c) - 0x1BC40u)) & 0x1FFF07FFFFFFFFFFull;
case 0x02: return (1u << (static_cast<uint_least32_t>(c) - 0x1BC80u)) & 0x3FF01FFu;
default: return true;
}
// 139 code units from 4 ranges (spanning a search area of 154)
TOML_UNREACHABLE;
}
case 0x26: // [38] 1D3CC - 1E016
{
if (U'\U0001D400' > c || c > U'\U0001DF1E')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFDFFFFFu, 0xEBFFDE64DFFFFFFFu, 0xFFFFFFFFFFFFFFEFu,
0x7BFFFFFFDFDFE7BFu, 0xFFFFFFFFFFFDFC5Fu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFF3FFFFFFFFFu, 0xF7FFFFFFF7FFFFFDu,
0xFFDFFFFFFFDFFFFFu, 0xFFFF7FFFFFFF7FFFu, 0xFFFFFDFFFFFFFDFFu, 0x0000000000000FF7u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x000000007FFFFFFFu,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x1D400ull) / 0x40ull]
& (0x1ull << (static_cast<uint_least64_t>(c) % 0x40ull));
// 967 code units from 31 ranges (spanning a search area of 2847)
}
case 0x27: // [39] 1E017 - 1EC61
{
if (U'\U0001E100' > c || c > U'\U0001E94B')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0x3F801FFFFFFFFFFFu, 0x0000000000004000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x00003FFFFFFF0000u, 0x00000FFFFFFFFFFFu,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x7FFF6F7F00000000u,
0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0xFFFFFFFFFFFFFFFFu, 0x000000000000001Fu,
0xFFFFFFFFFFFFFFFFu, 0x000000000000080Fu,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x1E100ull) / 0x40ull]
& (0x1ull << (static_cast<uint_least64_t>(c) % 0x40ull));
// 421 code units from 12 ranges (spanning a search area of 2124)
}
case 0x28: // [40] 1EC62 - 1F8AC
{
if (U'\U0001EE00' > c || c > U'\U0001EEBB')
return false;
switch ((static_cast<uint_least64_t>(c) - 0x1EE00ull) / 0x40ull)
{
case 0x00:
return c <= U'\U0001EE3B'
&& (1ull << (static_cast<uint_least64_t>(c) - 0x1EE00u)) & 0xAF7FE96FFFFFFEFull;
case 0x01:
return U'\U0001EE42' <= c && c <= U'\U0001EE7E'
&& (1ull << (static_cast<uint_least64_t>(c) - 0x1EE42u)) & 0x17BDFDE5AAA5BAA1ull;
case 0x02: return (1ull << (static_cast<uint_least64_t>(c) - 0x1EE80u)) & 0xFFFFBEE0FFFFBFFull;
default: TOML_UNREACHABLE;
}
// 141 code units from 33 ranges (spanning a search area of 188)
TOML_UNREACHABLE;
}
case 0x29: return U'\U00020000' <= c;
case 0x37: return c <= U'\U0002A6DF' || U'\U0002A700' <= c;
case 0x38: return c <= U'\U0002B738' || (U'\U0002B740' <= c && c <= U'\U0002B81D') || U'\U0002B820' <= c;
case 0x3A: return c <= U'\U0002CEA1' || U'\U0002CEB0' <= c;
case 0x3C: return c <= U'\U0002EBE0';
case 0x3D: return U'\U0002F800' <= c && c <= U'\U0002FA1D';
case 0x3E: return U'\U00030000' <= c;
default: TOML_UNREACHABLE;
}
// 131704 code units from 646 ranges (spanning a search area of 201377)
TOML_UNREACHABLE;
}
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_non_ascii_number(char32_t c) noexcept
{
if (U'\u0660' > c || c > U'\U0001FBF9')
return false;
const auto child_index_0 = (static_cast<uint_least64_t>(c) - 0x660ull) / 0x7D7ull;
if ((1ull << child_index_0) & 0x47FFDFE07FCFFFD0ull)
return false;
switch (child_index_0)
{
case 0x00: // [0] 0660 - 0E36
{
if (c > U'\u0DEF')
return false;
TOML_ASSUME(U'\u0660' <= c);
constexpr uint_least64_t bitmask_table_1[] = {
0x00000000000003FFu, 0x0000000000000000u, 0x0000000003FF0000u, 0x0000000000000000u,
0x0000000000000000u, 0x000003FF00000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x000000000000FFC0u, 0x0000000000000000u, 0x000000000000FFC0u, 0x0000000000000000u,
0x000000000000FFC0u, 0x0000000000000000u, 0x000000000000FFC0u, 0x0000000000000000u,
0x000000000000FFC0u, 0x0000000000000000u, 0x000000000000FFC0u, 0x0000000000000000u,
0x000000000000FFC0u, 0x0000000000000000u, 0x000000000000FFC0u, 0x0000000000000000u,
0x000000000000FFC0u, 0x0000000000000000u, 0x000000000000FFC0u,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x660ull) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0x660ull) % 0x40ull));
// 130 code units from 13 ranges (spanning a search area of 1936)
}
case 0x01: // [1] 0E37 - 160D
{
if (U'\u0E50' > c || c > U'\u1099')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0x00000000000003FFu, 0x0000000000000000u, 0x00000000000003FFu, 0x0000000003FF0000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x03FF000000000000u,
0x0000000000000000u, 0x00000000000003FFu,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0xE50ull) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0xE50ull) % 0x40ull));
// 50 code units from 5 ranges (spanning a search area of 586)
}
case 0x02: // [2] 160E - 1DE4
{
if (U'\u16EE' > c || c > U'\u1C59')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0x0000000000000007u, 0x0000000000000000u, 0x0000000000000000u, 0x0FFC000000000000u,
0x00000FFC00000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x00000003FF000000u, 0x0000000000000000u, 0x00000FFC00000000u,
0x0000000000000000u, 0x0000000000000000u, 0x00000FFC0FFC0000u, 0x0000000000000000u,
0x0000000000000000u, 0x00000FFC00000000u, 0x0000000000000000u, 0x0000000000000FFCu,
0x0000000000000000u, 0x00000FFC0FFC0000u,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x16EEull) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0x16EEull) % 0x40ull));
// 103 code units from 11 ranges (spanning a search area of 1388)
}
case 0x03:
return U'\u2160' <= c && c <= U'\u2188'
&& (1ull << (static_cast<uint_least64_t>(c) - 0x2160u)) & 0x1E7FFFFFFFFull;
case 0x05:
return U'\u3007' <= c && c <= U'\u303A'
&& (1ull << (static_cast<uint_least64_t>(c) - 0x3007u)) & 0xE0007FC000001ull;
case 0x14: // [20] A32C - AB02
{
if (U'\uA620' > c || c > U'\uAA59')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0x00000000000003FFu, 0x0000000000000000u, 0x0000000000000000u, 0x000000000000FFC0u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x03FF000000000000u, 0x000003FF00000000u,
0x0000000000000000u, 0x0000000000000000u, 0x03FF000000000000u, 0x0000000003FF0000u,
0x03FF000000000000u,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0xA620ull) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0xA620ull) % 0x40ull));
// 70 code units from 7 ranges (spanning a search area of 1082)
}
case 0x15: return U'\uABF0' <= c && c <= U'\uABF9';
case 0x1F: return U'\uFF10' <= c && c <= U'\uFF19';
case 0x20: // [32] 10140 - 10916
{
if (c > U'\U000104A9')
return false;
TOML_ASSUME(U'\U00010140' <= c);
constexpr uint_least64_t bitmask_table_1[] = {
0x001FFFFFFFFFFFFFu, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000402u, 0x0000000000000000u, 0x00000000003E0000u, 0x0000000000000000u,
0x0000000000000000u, 0x000003FF00000000u,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x10140ull) / 0x40ull]
& (0x1ull << (static_cast<uint_least64_t>(c) % 0x40ull));
// 70 code units from 5 ranges (spanning a search area of 874)
}
case 0x21: return (U'\U00010D30' <= c && c <= U'\U00010D39') || (U'\U00011066' <= c && c <= U'\U0001106F');
case 0x22: // [34] 110EE - 118C4
{
if (U'\U000110F0' > c || c > U'\U00011739')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0x00000000000003FFu, 0x000000000000FFC0u, 0x0000000000000000u, 0x000003FF00000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x00000000000003FFu, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x000003FF00000000u, 0x0000000000000000u, 0x000003FF00000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x000003FF00000000u, 0x0000000000000000u, 0x0000000003FF0000u,
0x0000000000000000u, 0x00000000000003FFu,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x110F0ull) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0x110F0ull) % 0x40ull));
// 90 code units from 9 ranges (spanning a search area of 1610)
}
case 0x23: // [35] 118C5 - 1209B
{
if (U'\U000118E0' > c || c > U'\U00011DA9')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0x00000000000003FFu, 0x03FF000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x03FF000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x03FF000000000000u, 0x0000000000000000u, 0x00000000000003FFu,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x118E0ull) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0x118E0ull) % 0x40ull));
// 50 code units from 5 ranges (spanning a search area of 1226)
}
case 0x24: return U'\U00012400' <= c && c <= U'\U0001246E';
case 0x2D:
return (U'\U00016A60' <= c && c <= U'\U00016A69') || (U'\U00016AC0' <= c && c <= U'\U00016AC9')
|| (U'\U00016B50' <= c && c <= U'\U00016B59');
case 0x3B: return U'\U0001D7CE' <= c && c <= U'\U0001D7FF';
case 0x3C: return (U'\U0001E140' <= c && c <= U'\U0001E149') || (U'\U0001E2F0' <= c && c <= U'\U0001E2F9');
case 0x3D: return U'\U0001E950' <= c && c <= U'\U0001E959';
case 0x3F: return U'\U0001FBF0' <= c;
default: TOML_UNREACHABLE;
}
// 886 code units from 73 ranges (spanning a search area of 128410)
TOML_UNREACHABLE;
}
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_combining_mark(char32_t c) noexcept
{
if (U'\u0300' > c || c > U'\U000E01EF')
return false;
const auto child_index_0 = (static_cast<uint_least64_t>(c) - 0x300ull) / 0x37FCull;
if ((1ull << child_index_0) & 0x7FFFFFFFFFFFFE02ull)
return false;
switch (child_index_0)
{
case 0x00: // [0] 0300 - 3AFB
{
if (c > U'\u309A')
return false;
TOML_ASSUME(U'\u0300' <= c);
constexpr uint_least64_t bitmask_table_1[] = {
0xFFFFFFFFFFFFFFFFu, 0x0000FFFFFFFFFFFFu, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x00000000000000F8u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0xBFFFFFFFFFFE0000u, 0x00000000000000B6u,
0x0000000007FF0000u, 0x00010000FFFFF800u, 0x0000000000000000u, 0x00003D9F9FC00000u,
0xFFFF000000020000u, 0x00000000000007FFu, 0x0001FFC000000000u, 0x200FF80000000000u,
0x00003EEFFBC00000u, 0x000000000E000000u, 0x00000000FF000000u, 0xFFFFFFFBFFFFFC00u,
0xDC0000000000000Fu, 0x0000000C00FEFFFFu, 0xD00000000000000Eu, 0x4000000C0080399Fu,
0xD00000000000000Eu, 0x0023000000023987u, 0xD00000000000000Eu, 0xFC00000C00003BBFu,
0xD00000000000000Eu, 0x0000000C00E0399Fu, 0xC000000000000004u, 0x0000000000803DC7u,
0xD00000000000001Fu, 0x0000000C00603DDFu, 0xD00000000000000Eu, 0x0000000C00603DDFu,
0xD80000000000000Fu, 0x0000000C00803DDFu, 0x000000000000000Eu, 0x000C0000FF5F8400u,
0x07F2000000000000u, 0x0000000000007F80u, 0x1FF2000000000000u, 0x0000000000003F00u,
0xC2A0000003000000u, 0xFFFE000000000000u, 0x1FFFFFFFFEFFE0DFu, 0x0000000000000040u,
0x7FFFF80000000000u, 0x001E3F9DC3C00000u, 0x000000003C00BFFCu, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x00000000E0000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x001C0000003C0000u, 0x000C0000000C0000u, 0xFFF0000000000000u, 0x00000000200FFFFFu,
0x000000000000B800u, 0x0000000000000000u, 0x0000020000000060u, 0x0000000000000000u,
0x0FFF0FFF00000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x000000000F800000u, 0x9FFFFFFF7FE00000u, 0xBFFF000000000000u, 0x0000000000007FFFu,
0xFFF000000000001Fu, 0x000FF8000000001Fu, 0x00003FFE00000007u, 0x000FFFC000000000u,
0x00FFFFF000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x039021FFFFF70000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0xFFFFFFFFFFFFFFFFu,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0001FFE21FFF0000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0003800000000000u,
0x0000000000000000u, 0x8000000000000000u, 0x0000000000000000u, 0xFFFFFFFF00000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000FC0000000000u, 0x0000000000000000u, 0x0000000006000000u,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x300ull) / 0x40ull]
& (0x1ull << (static_cast<uint_least64_t>(c) % 0x40ull));
// 1141 code units from 158 ranges (spanning a search area of 11675)
}
case 0x02: // [2] 72F8 - AAF3
{
if (U'\uA66F' > c || c > U'\uAAEF')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0x0001800000007FE1u, 0x0000000000000000u, 0x0000000000000006u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x21F0000010880000u, 0x0000000000000000u,
0x0000000000060000u, 0xFFFE0000007FFFE0u, 0x7F80000000010007u, 0x0000001FFF000000u,
0x00000000001E0000u, 0x004000000003FFF0u, 0xFC00000000000000u, 0x00000000601000FFu,
0x0000000000007000u, 0xF00000000005833Au, 0x0000000000000001u,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0xA66Full) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0xA66Full) % 0x40ull));
// 137 code units from 28 ranges (spanning a search area of 1153)
}
case 0x03:
return (U'\uAAF5' <= c && c <= U'\uAAF6') || (U'\uABE3' <= c && c <= U'\uABEA')
|| (U'\uABEC' <= c && c <= U'\uABED');
case 0x04: // [4] E2F0 - 11AEB
{
if (U'\uFB1E' > c || c > U'\U00011A99')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0x0000000000000001u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0003FFFC00000000u,
0x000000000003FFFCu, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000080000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000004u,
0x0000000000000000u, 0x000000001F000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0003C1B800000000u,
0x000000021C000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000180u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x00000000000003C0u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000006000u, 0x0000000000000000u,
0x0007FF0000000000u, 0x000000F000000000u, 0x0000000000000000u, 0x0000001C00000000u,
0x000001FFFC000000u, 0x0000001E00640000u, 0x000000101FFC0000u, 0x0000001C00000000u,
0x00000180007FFE00u, 0x0000001C00200000u, 0x00037807FFE00000u, 0x0000000000000000u,
0x0000000103FFC000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000003C00001FFEu,
0x0200E67F60000000u, 0x00000000007C7F30u, 0x0000000000000000u, 0x0000000000000000u,
0x000001FFFF800000u, 0x0000000000000001u, 0x0000003FFFFC0000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0xC0000007FCFE0000u, 0x0000000000000000u,
0x00000007FFFC0000u, 0x0000000000000000u, 0x0000000003FFE000u, 0x8000000000000000u,
0x0000000000003FFFu, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x000000001FFFC000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x00000035E6FC0000u, 0x0000000000000000u, 0xF3F8000000000000u, 0x00001FF800000047u,
0x3FF80201EFE00000u, 0x0FFFF00000000000u,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0xFB1Eull) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0xFB1Eull) % 0x40ull));
// 410 code units from 67 ranges (spanning a search area of 8060)
}
case 0x05: // [5] 11AEC - 152E7
{
if (U'\U00011C2F' > c || c > U'\U00011EF6')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0x000000000001FEFFu, 0xFDFFFFF800000000u, 0x00000000000000FFu, 0x0000000000000000u,
0x00000000017F68FCu, 0x000001F6F8000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x00000000000000F0u,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x11C2Full) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0x11C2Full) % 0x40ull));
// 85 code units from 13 ranges (spanning a search area of 712)
}
case 0x06: // [6] 152E8 - 18AE3
{
if (U'\U00016AF0' > c || c > U'\U00016FF1')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0x000000000000001Fu, 0x000000000000007Fu, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0xFFFFFFFE80000000u, 0x0000000780FFFFFFu, 0x0010000000000000u,
0x0000000000000003u,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x16AF0ull) / 0x40ull]
& (0x1ull << ((static_cast<uint_least64_t>(c) - 0x16AF0ull) % 0x40ull));
// 75 code units from 7 ranges (spanning a search area of 1282)
}
case 0x07: return U'\U0001BC9D' <= c && c <= U'\U0001BC9E';
case 0x08: // [8] 1C2E0 - 1FADB
{
if (U'\U0001CF00' > c || c > U'\U0001E94A')
return false;
constexpr uint_least64_t bitmask_table_1[] = {
0xFFFF3FFFFFFFFFFFu, 0x000000000000007Fu, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0xF807E3E000000000u, 0x00003C0000000FE7u, 0x0000000000000000u,
0x0000000000000000u, 0x000000000000001Cu, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0xF87FFFFFFFFFFFFFu, 0x00201FFFFFFFFFFFu, 0x0000FFFEF8000010u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x000007DBF9FFFF7Fu, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x007F000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000400000000000u, 0x0000F00000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u,
0x0000000000000000u, 0x0000000000000000u, 0x0000000000000000u, 0x00000000007F0000u,
0x0000000000000000u, 0x00000000000007F0u,
};
return bitmask_table_1[(static_cast<uint_least64_t>(c) - 0x1CF00ull) / 0x40ull]
& (0x1ull << (static_cast<uint_least64_t>(c) % 0x40ull));
// 293 code units from 24 ranges (spanning a search area of 6731)
}
case 0x3F: return U'\U000E0100' <= c;
default: TOML_UNREACHABLE;
}
// 2395 code units from 302 ranges (spanning a search area of 917232)
TOML_UNREACHABLE;
}
#endif // TOML_LANG_UNRELEASED
TOML_NODISCARD
TOML_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_non_ascii_letter(codepoint) || is_non_ascii_number(codepoint)
|| is_combining_mark(codepoint)
#endif
;
}
TOML_NODISCARD
TOML_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_non_ascii_line_break(codepoint)
|| is_non_ascii_whitespace(codepoint);
}
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_control_character(char32_t codepoint) noexcept
{
return codepoint <= U'\u001F' || codepoint == U'\u007F';
}
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_nontab_control_character(char32_t codepoint) noexcept
{
return codepoint <= U'\u0008' || (codepoint >= U'\u000A' && codepoint <= U'\u001F') || codepoint == U'\u007F';
}
TOML_NODISCARD
TOML_ATTR(const)
constexpr bool is_unicode_surrogate(char32_t codepoint) noexcept
{
return codepoint >= 0xD800u && codepoint <= 0xDFFF;
}
struct utf8_decoder final
{
// utf8_decoder based on this: https://bjoern.hoehrmann.de/utf-8/decoder/dfa/
// Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
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
};
TOML_NODISCARD
constexpr bool error() const noexcept
{
return state == uint_least32_t{ 12u };
}
TOML_NODISCARD
constexpr bool has_code_point() const noexcept
{
return state == uint_least32_t{};
}
TOML_NODISCARD
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];
}
};
}
TOML_IMPL_NAMESPACE_END;
TOML_POP_WARNINGS;
#if TOML_PARSER
//******** impl/parse_error.h ****************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_DISABLE_INIT_WARNINGS;
TOML_NAMESPACE_START
{
TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, ex, noex);
#if defined(DOXYGEN) || !TOML_EXCEPTIONS
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 } }
{}
TOML_NODISCARD
std::string_view description() const noexcept
{
return description_;
}
TOML_NODISCARD
const source_region& source() const noexcept
{
return source_;
}
};
#else
class parse_error final : public std::runtime_error
{
private:
source_region source_;
public:
TOML_NODISCARD_CTOR
TOML_ATTR(nonnull)
parse_error(const char* desc, source_region&& src) noexcept
: std::runtime_error{ desc },
source_{ std::move(src) }
{}
TOML_NODISCARD_CTOR
TOML_ATTR(nonnull)
parse_error(const char* desc, const source_region& src) noexcept : parse_error{ desc, source_region{ src } }
{}
TOML_NODISCARD_CTOR
TOML_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 } }
{}
TOML_NODISCARD
std::string_view description() const noexcept
{
return std::string_view{ what() };
}
TOML_NODISCARD
const source_region& source() const noexcept
{
return source_;
}
};
#endif
TOML_ABI_NAMESPACE_END; // TOML_EXCEPTIONS
template <typename Char>
inline 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 !defined(DOXYGEN) && !TOML_HEADER_ONLY
extern template TOML_API
std::ostream& operator<<(std::ostream&, const parse_error&);
#endif
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
//******** impl/parse_result.h ***************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
#if defined(DOXYGEN) || !TOML_EXCEPTIONS
TOML_NAMESPACE_START
{
TOML_ABI_NAMESPACE_START(noex);
class parse_result
{
private:
struct storage_t
{
static constexpr size_t size_ =
(sizeof(toml::table) < sizeof(parse_error) ? sizeof(parse_error) : sizeof(toml::table));
static constexpr size_t align_ =
(alignof(toml::table) < alignof(parse_error) ? alignof(parse_error) : alignof(toml::table));
alignas(align_) unsigned char bytes[size_];
};
mutable storage_t storage_;
bool err_;
template <typename Type>
TOML_NODISCARD
TOML_ALWAYS_INLINE
static Type* get_as(storage_t& s) noexcept
{
return TOML_LAUNDER(reinterpret_cast<Type*>(s.bytes));
}
void destroy() noexcept
{
if (err_)
get_as<parse_error>(storage_)->~parse_error();
else
get_as<toml::table>(storage_)->~table();
}
public:
using iterator = table_iterator;
using const_iterator = const_table_iterator;
TOML_NODISCARD
bool succeeded() const noexcept
{
return !err_;
}
TOML_NODISCARD
bool failed() const noexcept
{
return err_;
}
TOML_NODISCARD
explicit operator bool() const noexcept
{
return !err_;
}
TOML_NODISCARD
toml::table& table() & noexcept
{
TOML_ASSERT(!err_);
return *get_as<toml::table>(storage_);
}
TOML_NODISCARD
toml::table&& table() && noexcept
{
TOML_ASSERT(!err_);
return static_cast<toml::table&&>(*get_as<toml::table>(storage_));
}
TOML_NODISCARD
const toml::table& table() const& noexcept
{
TOML_ASSERT(!err_);
return *get_as<const toml::table>(storage_);
}
TOML_NODISCARD
parse_error& error() & noexcept
{
TOML_ASSERT(err_);
return *get_as<parse_error>(storage_);
}
TOML_NODISCARD
parse_error&& error() && noexcept
{
TOML_ASSERT(err_);
return static_cast<parse_error&&>(*get_as<parse_error>(storage_));
}
TOML_NODISCARD
const parse_error& error() const& noexcept
{
TOML_ASSERT(err_);
return *get_as<const parse_error>(storage_);
}
TOML_NODISCARD
operator toml::table&() noexcept
{
return table();
}
TOML_NODISCARD
operator toml::table&&() noexcept
{
return std::move(table());
}
TOML_NODISCARD
operator const toml::table&() const noexcept
{
return table();
}
TOML_NODISCARD
explicit operator parse_error&() noexcept
{
return error();
}
TOML_NODISCARD
explicit operator parse_error&&() noexcept
{
return std::move(error());
}
TOML_NODISCARD
explicit operator const parse_error&() const noexcept
{
return error();
}
TOML_NODISCARD_CTOR
parse_result() noexcept //
: err_{ true }
{
::new (static_cast<void*>(storage_.bytes)) parse_error{ std::string{}, source_region{} };
}
TOML_NODISCARD_CTOR
explicit parse_result(toml::table&& tbl) noexcept //
: err_{ false }
{
::new (static_cast<void*>(storage_.bytes)) toml::table{ std::move(tbl) };
}
TOML_NODISCARD_CTOR
explicit parse_result(parse_error&& err) noexcept //
: err_{ true }
{
::new (static_cast<void*>(storage_.bytes)) parse_error{ std::move(err) };
}
TOML_NODISCARD_CTOR
parse_result(parse_result&& res) noexcept //
: err_{ res.err_ }
{
if (err_)
::new (static_cast<void*>(storage_.bytes)) parse_error{ std::move(res).error() };
else
::new (static_cast<void*>(storage_.bytes)) toml::table{ std::move(res).table() };
}
parse_result& operator=(parse_result&& rhs) noexcept
{
if (err_ != rhs.err_)
{
destroy();
err_ = rhs.err_;
if (err_)
::new (static_cast<void*>(storage_.bytes)) parse_error{ std::move(rhs).error() };
else
::new (static_cast<void*>(storage_.bytes)) toml::table{ std::move(rhs).table() };
}
else
{
if (err_)
error() = std::move(rhs).error();
else
table() = std::move(rhs).table();
}
return *this;
}
~parse_result() noexcept
{
destroy();
}
TOML_NODISCARD
node_view<node> operator[](string_view key) noexcept
{
return err_ ? node_view<node>{} : table()[key];
}
TOML_NODISCARD
node_view<const node> operator[](string_view key) const noexcept
{
return err_ ? node_view<const node>{} : table()[key];
}
#if TOML_WINDOWS_COMPAT
TOML_NODISCARD
node_view<node> operator[](std::wstring_view key) noexcept
{
return err_ ? node_view<node>{} : table()[key];
}
TOML_NODISCARD
node_view<const node> operator[](std::wstring_view key) const noexcept
{
return err_ ? node_view<const node>{} : table()[key];
}
#endif // TOML_WINDOWS_COMPAT
TOML_NODISCARD
table_iterator begin() noexcept
{
return err_ ? table_iterator{} : table().begin();
}
TOML_NODISCARD
const_table_iterator begin() const noexcept
{
return err_ ? const_table_iterator{} : table().begin();
}
TOML_NODISCARD
const_table_iterator cbegin() const noexcept
{
return err_ ? const_table_iterator{} : table().cbegin();
}
TOML_NODISCARD
table_iterator end() noexcept
{
return err_ ? table_iterator{} : table().end();
}
TOML_NODISCARD
const_table_iterator end() const noexcept
{
return err_ ? const_table_iterator{} : table().end();
}
TOML_NODISCARD
const_table_iterator cend() const noexcept
{
return err_ ? const_table_iterator{} : table().cend();
}
template <typename Char>
friend std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>& os, const parse_result& result)
{
return result.err_ ? (os << result.error()) : (os << result.table());
}
};
TOML_ABI_NAMESPACE_END;
}
TOML_NAMESPACE_END;
#endif // !TOML_EXCEPTIONS
TOML_POP_WARNINGS;
//******** impl/utf8_streams.h ***************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
#if TOML_EXCEPTIONS
#define TOML_ERROR_CHECK (void)0
#define TOML_ERROR throw parse_error
#else
#define TOML_ERROR_CHECK \
if (err) \
return nullptr
#define TOML_ERROR err.emplace
#endif
TOML_IMPL_NAMESPACE_START
{
template <typename T>
class utf8_byte_stream;
inline constexpr auto utf8_byte_order_mark = "\xEF\xBB\xBF"sv;
template <typename Char>
class TOML_API 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
const size_t initial_len = source.length();
size_t actual_len = initial_len;
for (size_t i = actual_len; i-- > 0_sz;)
{
if (source[i] != Char{}) // not '\0'
{
actual_len = i + 1_sz;
break;
}
}
if (initial_len != actual_len)
source = source.substr(0_sz, actual_len);
// skip bom
if (actual_len >= 3_sz && memcmp(utf8_byte_order_mark.data(), source.data(), 3_sz) == 0)
position += 3_sz;
}
TOML_NODISCARD
TOML_ALWAYS_INLINE
constexpr bool eof() const noexcept
{
return position >= source.length();
}
TOML_NODISCARD
TOML_ALWAYS_INLINE
constexpr bool peek_eof() const noexcept
{
return eof();
}
TOML_NODISCARD
TOML_ALWAYS_INLINE
constexpr bool error() const noexcept
{
return false;
}
TOML_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 TOML_API 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->good()) // eof, fail, bad
return;
const auto initial_pos = source->tellg();
Char bom[3];
source->read(bom, 3);
if (source->bad() || (source->gcount() == 3 && memcmp(utf8_byte_order_mark.data(), bom, 3_sz) == 0))
return;
source->clear();
source->seekg(initial_pos, std::basic_istream<Char>::beg);
}
TOML_NODISCARD
TOML_ALWAYS_INLINE
bool eof() const noexcept
{
return source->eof();
}
TOML_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();
}
TOML_NODISCARD
TOML_ALWAYS_INLINE
bool error() const noexcept
{
return !(*source);
}
TOML_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);
}
};
TOML_ABI_NAMESPACE_BOOL(TOML_LARGE_FILES, lf, sf);
struct utf8_codepoint final
{
char32_t value;
char bytes[4];
source_position position;
TOML_NODISCARD
std::string_view as_view() const noexcept
{
return bytes[3] ? std::string_view{ bytes, 4_sz } : std::string_view{ bytes };
}
TOML_NODISCARD
TOML_ATTR(pure)
constexpr operator char32_t&() noexcept
{
return value;
}
TOML_NODISCARD
TOML_ATTR(pure)
constexpr operator const char32_t&() const noexcept
{
return value;
}
TOML_NODISCARD
TOML_ATTR(pure)
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
TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, ex, noex);
struct TOML_ABSTRACT_BASE utf8_reader_interface
{
TOML_NODISCARD
virtual const source_path_ptr& source_path() const noexcept = 0;
TOML_NODISCARD
virtual const utf8_codepoint* read_next() = 0;
TOML_NODISCARD
virtual bool peek_eof() const = 0;
#if !TOML_EXCEPTIONS
TOML_NODISCARD
virtual optional<parse_error>&& error() noexcept = 0;
#endif
virtual ~utf8_reader_interface() noexcept = default;
};
template <typename T>
class TOML_EMPTY_BASES TOML_API 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{ static_cast<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>(static_cast<String&&>(source_path));
}
TOML_NODISCARD
const source_path_ptr& source_path() const noexcept override
{
return source_path_;
}
TOML_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<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;
}
TOML_NODISCARD
bool peek_eof() const override
{
return stream.peek_eof();
}
#if !TOML_EXCEPTIONS
TOML_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_string_view<Char>, std::string &&) -> 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_istream<Char>&, std::string &&) -> utf8_reader<std::basic_istream<Char>>;
class TOML_EMPTY_BASES TOML_API 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;
const source_path_ptr& source_path() const noexcept override;
const utf8_codepoint* read_next() override;
const utf8_codepoint* step_back(size_t count) noexcept;
bool peek_eof() const override;
#if !TOML_EXCEPTIONS
optional<parse_error>&& error() noexcept override;
#endif
};
TOML_ABI_NAMESPACE_END; // TOML_EXCEPTIONS
}
TOML_IMPL_NAMESPACE_END;
#undef TOML_ERROR_CHECK
#undef TOML_ERROR
TOML_POP_WARNINGS;
//******** impl/parser.h *********************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_IMPL_NAMESPACE_START
{
TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, ex, noex);
TOML_NODISCARD
TOML_API
parse_result do_parse(utf8_reader_interface &&) TOML_MAY_THROW;
TOML_ABI_NAMESPACE_END; // TOML_EXCEPTIONS
}
TOML_IMPL_NAMESPACE_END;
TOML_NAMESPACE_START
{
TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, ex, noex);
TOML_NODISCARD
TOML_API
parse_result parse(std::string_view doc, std::string_view source_path = {}) TOML_MAY_THROW;
TOML_NODISCARD
TOML_API
parse_result parse(std::string_view doc, std::string && source_path) TOML_MAY_THROW;
#if TOML_WINDOWS_COMPAT
TOML_NODISCARD
TOML_API
parse_result parse(std::string_view doc, std::wstring_view source_path) TOML_MAY_THROW;
#endif // TOML_WINDOWS_COMPAT
#if TOML_HAS_CHAR8
TOML_NODISCARD
TOML_API
parse_result parse(std::u8string_view doc, std::string_view source_path = {}) TOML_MAY_THROW;
TOML_NODISCARD
TOML_API
parse_result parse(std::u8string_view doc, std::string && source_path) TOML_MAY_THROW;
#if TOML_WINDOWS_COMPAT
TOML_NODISCARD
TOML_API
parse_result parse(std::u8string_view doc, std::wstring_view source_path) TOML_MAY_THROW;
#endif // TOML_WINDOWS_COMPAT
#endif // TOML_HAS_CHAR8
template <typename Char>
TOML_NODISCARD
inline 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>
TOML_NODISCARD
inline 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) });
}
#if TOML_WINDOWS_COMPAT
template <typename Char>
TOML_NODISCARD
inline parse_result parse(std::basic_istream<Char> & doc, std::wstring_view source_path) TOML_MAY_THROW
{
return parse(doc, impl::narrow(source_path));
}
#endif // TOML_WINDOWS_COMPAT
#if !defined(DOXYGEN) && !TOML_HEADER_ONLY
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;
#endif
TOML_NODISCARD
TOML_API
parse_result parse_file(std::string_view file_path) TOML_MAY_THROW;
#if TOML_HAS_CHAR8
TOML_NODISCARD
TOML_API
parse_result parse_file(std::u8string_view file_path) TOML_MAY_THROW;
#endif // TOML_HAS_CHAR8
#if TOML_WINDOWS_COMPAT
TOML_NODISCARD
TOML_API
parse_result parse_file(std::wstring_view file_path) TOML_MAY_THROW;
#endif // TOML_WINDOWS_COMPAT
TOML_ABI_NAMESPACE_END; // TOML_EXCEPTIONS
inline namespace literals
{
TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, lit_ex, lit_noex);
TOML_NODISCARD
TOML_API
parse_result operator"" _toml(const char* str, size_t len) TOML_MAY_THROW;
#if TOML_HAS_CHAR8
TOML_NODISCARD
TOML_API
parse_result operator"" _toml(const char8_t* str, size_t len) TOML_MAY_THROW;
#endif // TOML_HAS_CHAR8
TOML_ABI_NAMESPACE_END; // TOML_EXCEPTIONS
}
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
#endif // TOML_PARSER
//******** impl/formatter.h ******************************************************************************************
#if TOML_PARSER && !TOML_EXCEPTIONS
#endif
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_IMPL_NAMESPACE_START
{
template <typename Char = char>
class TOML_API formatter
{
private:
const toml::node* source_;
std::basic_ostream<Char>* stream_ = {};
format_flags flags_;
int indent_;
bool naked_newline_;
#if TOML_PARSER && !TOML_EXCEPTIONS
const parse_result* result_ = {};
#endif
protected:
TOML_NODISCARD
const toml::node& source() const noexcept
{
return *source_;
}
TOML_NODISCARD
std::basic_ostream<Char>& stream() const noexcept
{
return *stream_;
}
static constexpr size_t indent_columns = 4;
static constexpr std::string_view indent_string = " "sv;
TOML_NODISCARD
int indent() const noexcept
{
return indent_;
}
void indent(int level) noexcept
{
indent_ = level;
}
void increase_indent() noexcept
{
indent_++;
}
void decrease_indent() noexcept
{
indent_--;
}
TOML_NODISCARD
bool quote_dates_and_times() const noexcept
{
return (flags_ & format_flags::quote_dates_and_times) != format_flags::none;
}
TOML_NODISCARD
bool literal_strings_allowed() const noexcept
{
return (flags_ & format_flags::allow_literal_strings) != format_flags::none;
}
TOML_NODISCARD
bool multi_line_strings_allowed() const noexcept
{
return (flags_ & format_flags::allow_multi_line_strings) != format_flags::none;
}
TOML_NODISCARD
bool value_format_flags_allowed() const noexcept
{
return (flags_ & format_flags::allow_value_format_flags) != format_flags::none;
}
TOML_NODISCARD
bool naked_newline() const noexcept
{
return naked_newline_;
}
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 (int i = 0; i < indent_; i++)
{
print_to_stream(indent_string, *stream_);
naked_newline_ = false;
}
}
void print_quoted_string(std::string_view str, bool allow_multi_line = true)
{
auto literals = literal_strings_allowed();
if (str.empty())
{
print_to_stream(literals ? "''"sv : "\"\""sv, *stream_);
clear_naked_newline();
return;
}
auto multi_line = allow_multi_line && multi_line_strings_allowed();
if (multi_line || literals)
{
utf8_decoder decoder;
bool has_line_breaks = false;
bool has_control_chars = false;
bool has_single_quotes = false;
for (size_t i = 0; i < str.length() && !(has_line_breaks && has_control_chars && has_single_quotes);
i++)
{
decoder(static_cast<uint8_t>(str[i]));
if (decoder.error())
{
has_line_breaks = false;
has_control_chars = true; // force ""
has_single_quotes = true;
break;
}
else if (decoder.has_code_point())
{
if (is_line_break(decoder.codepoint))
has_line_breaks = true;
else if (is_nontab_control_character(decoder.codepoint))
has_control_chars = true;
else if (decoder.codepoint == U'\'')
has_single_quotes = true;
}
}
multi_line = multi_line && has_line_breaks;
literals = literals && !has_control_chars && !(!multi_line && has_single_quotes);
}
if (literals)
{
const auto quot = multi_line ? "'''"sv : "'"sv;
print_to_stream(quot, *stream_);
print_to_stream(str, *stream_);
print_to_stream(quot, *stream_);
}
else
{
const auto quot = multi_line ? R"(""")"sv : R"(")"sv;
print_to_stream(quot, *stream_);
print_to_stream_with_escapes(str, *stream_);
print_to_stream(quot, *stream_);
}
clear_naked_newline();
}
template <typename T>
void print(const value<T>& val)
{
if constexpr (std::is_same_v<T, std::string>)
{
print_quoted_string(val.get());
}
else
{
if constexpr (is_one_of<T, date, time, date_time>)
{
if (quote_dates_and_times())
{
const auto quot = literal_strings_allowed() ? '\'' : '"';
print_to_stream(quot, *stream_);
print_to_stream(*val, *stream_);
print_to_stream(quot, *stream_);
}
else
print_to_stream(*val, *stream_);
}
else if constexpr (is_one_of<T, int64_t /*, double*/>)
{
if (value_format_flags_allowed() && *val >= 0)
{
const auto fmt = val.flags() & value_flags::format_as_hexadecimal;
if (fmt != value_flags::none)
{
switch (fmt)
{
case value_flags::format_as_binary: print_to_stream("0b"sv, *stream_); break;
case value_flags::format_as_octal: print_to_stream("0o"sv, *stream_); break;
case value_flags::format_as_hexadecimal: print_to_stream("0x"sv, *stream_); break;
default: TOML_UNREACHABLE;
}
print_to_stream(*val, *stream_, fmt);
}
else
print_to_stream(*val, *stream_);
}
else
print_to_stream(*val, *stream_);
}
else
print_to_stream(*val, *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<std::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;
default: TOML_UNREACHABLE;
}
}
TOML_NODISCARD
bool dump_failed_parse_result()
{
#if TOML_PARSER && !TOML_EXCEPTIONS
if (result_ && !(*result_))
{
stream() << result_->error();
return true;
}
#endif
return false;
}
formatter(const toml::node& source, format_flags flags) noexcept //
: source_{ &source },
flags_{ flags }
{}
#if TOML_PARSER && !TOML_EXCEPTIONS
formatter(const parse_result& result, format_flags flags) noexcept //
: source_{ result ? &result.table() : nullptr },
flags_{ flags },
result_{ &result }
{}
#endif
};
#if !defined(DOXYGEN) && !TOML_HEADER_ONLY
extern template class TOML_API formatter<char>;
#endif
}
TOML_IMPL_NAMESPACE_END;
TOML_POP_WARNINGS;
//******** impl/default_formatter.h **********************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_IMPL_NAMESPACE_START
{
TOML_NODISCARD
TOML_API
std::string default_formatter_make_key_segment(const std::string&) noexcept;
TOML_NODISCARD
TOML_API
size_t default_formatter_inline_columns(const node&) noexcept;
TOML_NODISCARD
TOML_API
bool default_formatter_forces_multiline(const node&, size_t = 0) noexcept;
}
TOML_IMPL_NAMESPACE_END;
TOML_NAMESPACE_START
{
template <typename Char = char>
class TOML_API default_formatter final : impl::formatter<Char>
{
private:
using base = impl::formatter<Char>;
std::vector<std::string> key_path;
bool pending_table_separator_ = false;
void print_pending_table_separator()
{
if (pending_table_separator_)
{
base::print_newline(true);
base::print_newline(true);
pending_table_separator_ = false;
}
}
void print_key_segment(const std::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)
{
impl::print_to_stream('"', base::stream());
impl::print_to_stream_with_escapes(str, base::stream());
impl::print_to_stream('"', base::stream());
}
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;
pending_table_separator_ = true;
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;
key_path.push_back(impl::default_formatter_make_key_segment(k));
if (!skip_self)
{
print_pending_table_separator();
base::increase_indent();
base::print_indent();
impl::print_to_stream("["sv, base::stream());
print_key_path();
impl::print_to_stream("]"sv, base::stream());
pending_table_separator_ = 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++)
{
print_pending_table_separator();
base::print_indent();
impl::print_to_stream("[["sv, base::stream());
print_key_path();
impl::print_to_stream("]]"sv, base::stream());
pending_table_separator_ = true;
print(*reinterpret_cast<const table*>(&arr[i]));
}
key_path.pop_back();
base::decrease_indent();
}
}
void print()
{
if (base::dump_failed_parse_result())
return;
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:
static constexpr format_flags default_flags = format_flags::allow_literal_strings
| format_flags::allow_multi_line_strings
| format_flags::allow_value_format_flags;
TOML_NODISCARD_CTOR
explicit default_formatter(const toml::node& source, format_flags flags = default_flags) noexcept
: base{ source, flags }
{}
#if defined(DOXYGEN) || (TOML_PARSER && !TOML_EXCEPTIONS)
TOML_NODISCARD_CTOR
explicit default_formatter(const toml::parse_result& result, format_flags flags = default_flags) noexcept
: base{ result, flags }
{}
#endif
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 !defined(DOXYGEN) && !TOML_HEADER_ONLY
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>
inline 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>
inline std::basic_ostream<T>& operator<<(std::basic_ostream<T>& lhs, default_formatter<U>&& rhs)
{
return lhs << rhs; // as lvalue
}
#ifndef DOXYGEN
#if !TOML_HEADER_ONLY
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&);
extern template TOML_API
std::ostream& operator<<(std::ostream&, const value<std::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
template <typename Char>
inline std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>& lhs, const table& rhs)
{
return lhs << default_formatter<Char>{ rhs };
}
template <typename Char>
inline std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>& lhs, const array& rhs)
{
return lhs << default_formatter<Char>{ rhs };
}
template <typename Char, typename T>
inline std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>& lhs, const value<T>& rhs)
{
return lhs << default_formatter<Char>{ rhs };
}
#endif // !DOXYGEN
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
//******** impl/json_formatter.h *************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_NAMESPACE_START
{
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()
{
if (base::dump_failed_parse_result())
return;
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:
static constexpr format_flags default_flags = format_flags::quote_dates_and_times;
TOML_NODISCARD_CTOR
explicit json_formatter(const toml::node& source, format_flags flags = default_flags) noexcept
: base{ source, flags }
{}
#if defined(DOXYGEN) || (TOML_PARSER && !TOML_EXCEPTIONS)
TOML_NODISCARD_CTOR
explicit json_formatter(const toml::parse_result& result, format_flags flags = default_flags) noexcept
: base{ result, flags }
{}
#endif
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 !defined(DOXYGEN) && !TOML_HEADER_ONLY
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>
inline 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>
inline std::basic_ostream<T>& operator<<(std::basic_ostream<T>& lhs, json_formatter<U>&& rhs)
{
return lhs << rhs; // as lvalue
}
#if !defined(DOXYGEN) && !TOML_HEADER_ONLY
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_NAMESPACE_END;
TOML_POP_WARNINGS;
#if TOML_IMPLEMENTATION
//******** impl/node_impl.h ******************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_NAMESPACE_START
{
TOML_EXTERNAL_LINKAGE
node::node(node && other) noexcept //
: source_{ std::exchange(other.source_, {}) }
{}
TOML_EXTERNAL_LINKAGE
node::node(const node& /*other*/) noexcept
{
// does not copy source information - this is not an error
//
// see https://github.com/marzer/tomlplusplus/issues/49#issuecomment-665089577
}
TOML_EXTERNAL_LINKAGE
node& node::operator=(const node& /*rhs*/) noexcept
{
// does not copy source information - this is not an error
//
// see https://github.com/marzer/tomlplusplus/issues/49#issuecomment-665089577
source_ = {};
return *this;
}
TOML_EXTERNAL_LINKAGE
node& node::operator=(node&& rhs) noexcept
{
if (&rhs != this)
source_ = std::exchange(rhs.source_, {});
return *this;
}
TOML_EXTERNAL_LINKAGE
node::operator node_view<node>() noexcept
{
return node_view<node>(this);
}
TOML_EXTERNAL_LINKAGE
node::operator node_view<const node>() const noexcept
{
return node_view<const node>(this);
}
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
//******** impl/array_impl.h *****************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_NAMESPACE_START
{
TOML_EXTERNAL_LINKAGE
array::array() noexcept
{
#if TOML_LIFETIME_HOOKS
TOML_ARRAY_CREATED;
#endif
}
TOML_EXTERNAL_LINKAGE
array::array(const array& other) noexcept //
: node(other)
{
elements.reserve(other.elements.size());
for (const auto& elem : other)
elements.emplace_back(impl::make_node(elem));
#if TOML_LIFETIME_HOOKS
TOML_ARRAY_CREATED;
#endif
}
TOML_EXTERNAL_LINKAGE
array::array(array && other) noexcept //
: node(std::move(other)),
elements{ std::move(other.elements) }
{
#if TOML_LIFETIME_HOOKS
TOML_ARRAY_CREATED;
#endif
}
TOML_EXTERNAL_LINKAGE
array& array::operator=(const array& rhs) noexcept
{
if (&rhs != this)
{
node::operator=(rhs);
elements.clear();
elements.reserve(rhs.elements.size());
for (const auto& elem : rhs)
elements.emplace_back(impl::make_node(elem));
}
return *this;
}
TOML_EXTERNAL_LINKAGE
array& array::operator=(array&& rhs) noexcept
{
if (&rhs != this)
{
node::operator=(std::move(rhs));
elements = std::move(rhs.elements);
}
return *this;
}
TOML_EXTERNAL_LINKAGE
void array::preinsertion_resize(size_t idx, size_t count) noexcept
{
TOML_ASSERT(idx <= elements.size());
TOML_ASSERT(count >= 1_sz);
const auto old_size = elements.size();
const auto new_size = old_size + count;
const auto inserting_at_end = idx == old_size;
elements.resize(new_size);
if (!inserting_at_end)
{
for (size_t left = old_size, right = new_size - 1_sz; left-- > idx; right--)
elements[right] = std::move(elements[left]);
}
}
TOML_EXTERNAL_LINKAGE
TOML_ATTR(pure)
const node& array::operator[](size_t index) const noexcept
{
return *elements[index];
}
TOML_EXTERNAL_LINKAGE
TOML_ATTR(pure)
node& array::operator[](size_t index) noexcept
{
return *elements[index];
}
TOML_EXTERNAL_LINKAGE
bool array::is_homogeneous(node_type ntype) const noexcept
{
if (elements.empty())
return false;
if (ntype == node_type::none)
ntype = elements[0]->type();
for (const auto& val : elements)
if (val->type() != ntype)
return false;
return true;
}
namespace impl
{
template <typename T, typename U>
TOML_INTERNAL_LINKAGE
bool array_is_homogeneous(T& elements, node_type ntype, U& first_nonmatch) noexcept
{
if (elements.empty())
{
first_nonmatch = {};
return false;
}
if (ntype == node_type::none)
ntype = elements[0]->type();
for (const auto& val : elements)
{
if (val->type() != ntype)
{
first_nonmatch = val.get();
return false;
}
}
return true;
}
}
TOML_EXTERNAL_LINKAGE
bool array::is_homogeneous(node_type ntype, toml::node * &first_nonmatch) noexcept
{
return impl::array_is_homogeneous(elements, ntype, first_nonmatch);
}
TOML_EXTERNAL_LINKAGE
bool array::is_homogeneous(node_type ntype, const toml::node*& first_nonmatch) const noexcept
{
return impl::array_is_homogeneous(elements, ntype, first_nonmatch);
}
TOML_EXTERNAL_LINKAGE
TOML_ATTR(pure)
node* array::get(size_t index) noexcept
{
return index < elements.size() ? elements[index].get() : nullptr;
}
TOML_EXTERNAL_LINKAGE
TOML_ATTR(pure)
const node* array::get(size_t index) const noexcept
{
return index < elements.size() ? elements[index].get() : nullptr;
}
TOML_EXTERNAL_LINKAGE
bool operator==(const array& lhs, const array& rhs) noexcept
{
if (&lhs == &rhs)
return true;
if (lhs.elements.size() != rhs.elements.size())
return false;
for (size_t i = 0, e = lhs.elements.size(); i < e; i++)
{
const auto lhs_type = lhs.elements[i]->type();
const node& rhs_ = *rhs.elements[i];
const auto rhs_type = rhs_.type();
if (lhs_type != rhs_type)
return false;
const bool equal = lhs.elements[i]->visit(
[&](const auto& lhs_) noexcept
{ return lhs_ == *reinterpret_cast<std::remove_reference_t<decltype(lhs_)>*>(&rhs_); });
if (!equal)
return false;
}
return true;
}
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 = elements.size(); i < e; i++)
{
auto arr = elements[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.elements[i]->type();
if (type == node_type::array)
{
array& arr = *reinterpret_cast<array*>(child.elements[i].get());
if (!arr.empty())
flatten_child(std::move(arr), dest_index);
}
else
elements[dest_index++] = std::move(child.elements[i]);
}
}
TOML_EXTERNAL_LINKAGE
array& array::flatten()&
{
if (elements.empty())
return *this;
bool requires_flattening = false;
size_t size_after_flattening = elements.size();
for (size_t i = elements.size(); i-- > 0_sz;)
{
auto arr = elements[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
elements.erase(elements.cbegin() + static_cast<ptrdiff_t>(i));
}
if (!requires_flattening)
return *this;
elements.reserve(size_after_flattening);
size_t i = 0;
while (i < elements.size())
{
auto arr = elements[i]->as_array();
if (!arr)
{
i++;
continue;
}
std::unique_ptr<node> arr_storage = std::move(elements[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
}
return *this;
}
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
//******** impl/table_impl.h *****************************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_NAMESPACE_START
{
TOML_EXTERNAL_LINKAGE
table::table() noexcept
{
#if TOML_LIFETIME_HOOKS
TOML_TABLE_CREATED;
#endif
}
TOML_EXTERNAL_LINKAGE
table::table(const table& other) noexcept //
: node(other),
inline_{ other.inline_ }
{
for (auto&& [k, v] : other)
map.emplace_hint(map.end(), k, impl::make_node(v));
#if TOML_LIFETIME_HOOKS
TOML_TABLE_CREATED;
#endif
}
TOML_EXTERNAL_LINKAGE
table::table(table && other) noexcept //
: node(std::move(other)),
map{ std::move(other.map) },
inline_{ other.inline_ }
{
#if TOML_LIFETIME_HOOKS
TOML_TABLE_CREATED;
#endif
}
TOML_EXTERNAL_LINKAGE
table& table::operator=(const table& rhs) noexcept
{
if (&rhs != this)
{
node::operator=(rhs);
map.clear();
for (auto&& [k, v] : rhs)
map.emplace_hint(map.end(), k, impl::make_node(v));
inline_ = rhs.inline_;
}
return *this;
}
TOML_EXTERNAL_LINKAGE
table& table::operator=(table&& rhs) noexcept
{
if (&rhs != this)
{
node::operator=(std::move(rhs));
map = std::move(rhs.map);
inline_ = rhs.inline_;
}
return *this;
}
TOML_EXTERNAL_LINKAGE
table::table(impl::table_init_pair * pairs, size_t count) noexcept
{
for (size_t i = 0; i < count; i++)
{
if (!pairs[i].value) // empty node_views
continue;
map.insert_or_assign(std::move(pairs[i].key), std::move(pairs[i].value));
}
}
TOML_EXTERNAL_LINKAGE
bool table::is_homogeneous(node_type ntype) const noexcept
{
if (map.empty())
return false;
if (ntype == node_type::none)
ntype = map.cbegin()->second->type();
for (const auto& [k, v] : map)
{
(void)k;
if (v->type() != ntype)
return false;
}
return true;
}
namespace impl
{
template <typename T, typename U>
TOML_INTERNAL_LINKAGE
bool table_is_homogeneous(T& map, node_type ntype, U& first_nonmatch) noexcept
{
if (map.empty())
{
first_nonmatch = {};
return false;
}
if (ntype == node_type::none)
ntype = map.cbegin()->second->type();
for (const auto& [k, v] : map)
{
(void)k;
if (v->type() != ntype)
{
first_nonmatch = v.get();
return false;
}
}
return true;
}
}
TOML_EXTERNAL_LINKAGE
bool table::is_homogeneous(node_type ntype, toml::node * &first_nonmatch) noexcept
{
return impl::table_is_homogeneous(map, ntype, first_nonmatch);
}
TOML_EXTERNAL_LINKAGE
bool table::is_homogeneous(node_type ntype, const toml::node*& first_nonmatch) const noexcept
{
return impl::table_is_homogeneous(map, ntype, first_nonmatch);
}
TOML_EXTERNAL_LINKAGE
node_view<node> table::operator[](std::string_view key) noexcept
{
return node_view<node>{ this->get(key) };
}
TOML_EXTERNAL_LINKAGE
node_view<const node> table::operator[](std::string_view key) const noexcept
{
return node_view<const node>{ this->get(key) };
}
#if TOML_WINDOWS_COMPAT
TOML_EXTERNAL_LINKAGE
node_view<node> table::operator[](std::wstring_view key) noexcept
{
return node_view<node>{ this->get(key) };
}
TOML_EXTERNAL_LINKAGE
node_view<const node> table::operator[](std::wstring_view key) const noexcept
{
return node_view<const node>{ this->get(key) };
}
#endif // TOML_WINDOWS_COMPAT
TOML_EXTERNAL_LINKAGE
bool operator==(const table& lhs, const table& rhs) noexcept
{
if (&lhs == &rhs)
return true;
if (lhs.map.size() != rhs.map.size())
return false;
for (auto l = lhs.map.begin(), r = rhs.map.begin(), e = lhs.map.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_EXTERNAL_LINKAGE
bool operator!=(const table& lhs, const table& rhs) noexcept
{
return !(lhs == rhs);
}
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
#if TOML_PARSER
//******** impl/utf8_streams_impl.h **********************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
#if !TOML_EXCEPTIONS
#undef TOML_ERROR_CHECK
#define TOML_ERROR_CHECK \
if (reader.error()) \
return nullptr
#else
#define TOML_ERROR_CHECK (void)0
#endif
TOML_IMPL_NAMESPACE_START
{
TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, ex, noex);
TOML_EXTERNAL_LINKAGE
utf8_buffered_reader::utf8_buffered_reader(utf8_reader_interface & reader_) noexcept : reader{ reader_ }
{}
TOML_EXTERNAL_LINKAGE
const source_path_ptr& utf8_buffered_reader::source_path() const noexcept
{
return reader.source_path();
}
TOML_EXTERNAL_LINKAGE
const utf8_codepoint* utf8_buffered_reader::read_next()
{
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;
}
}
TOML_EXTERNAL_LINKAGE
const utf8_codepoint* utf8_buffered_reader::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;
}
TOML_EXTERNAL_LINKAGE
bool utf8_buffered_reader::peek_eof() const
{
return reader.peek_eof();
}
#if !TOML_EXCEPTIONS
TOML_EXTERNAL_LINKAGE
optional<parse_error>&& utf8_buffered_reader::error() noexcept
{
return reader.error();
}
#endif
TOML_ABI_NAMESPACE_END; // TOML_EXCEPTIONS
}
TOML_IMPL_NAMESPACE_END;
#undef TOML_ERROR_CHECK
TOML_POP_WARNINGS;
//******** impl/parser_impl.h ****************************************************************************************
TOML_DISABLE_WARNINGS;
#include <fstream>
#if !TOML_HEADER_ONLY
using namespace std::string_view_literals;
#endif
TOML_ENABLE_WARNINGS;
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_DISABLE_INIT_WARNINGS;
#if TOML_MSVC
#pragma warning(disable : 6001) // using uninitialized memory (false positive)
#endif
#if TOML_EXCEPTIONS && !TOML_INTELLISENSE
#define TOML_RETURNS_BY_THROWING [[noreturn]]
#else
#define TOML_RETURNS_BY_THROWING
#endif
TOML_ANON_NAMESPACE_START
{
template <typename... T>
TOML_NODISCARD
TOML_ATTR(const)
TOML_INTERNAL_LINKAGE
constexpr bool is_match(char32_t codepoint, T... vals) noexcept
{
static_assert((std::is_same_v<char32_t, T> && ...));
return ((codepoint == vals) || ...);
}
template <uint64_t>
struct parse_integer_traits;
template <>
struct parse_integer_traits<2>
{
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 auto prefix_codepoint = U'b';
static constexpr auto prefix = "b"sv;
};
template <>
struct parse_integer_traits<8>
{
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 auto prefix_codepoint = U'o';
static constexpr auto prefix = "o"sv;
};
template <>
struct parse_integer_traits<10>
{
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>
{
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 auto prefix_codepoint = U'x';
static constexpr auto prefix = "x"sv;
};
TOML_NODISCARD
TOML_INTERNAL_LINKAGE
std::string_view to_sv(::toml::node_type val) noexcept
{
using namespace ::toml::impl;
return node_type_friendly_names[unwrap_enum(val)];
}
TOML_NODISCARD
TOML_INTERNAL_LINKAGE
std::string_view to_sv(const std::string& str) noexcept
{
return std::string_view{ str };
}
TOML_NODISCARD
TOML_ATTR(const)
TOML_INTERNAL_LINKAGE
std::string_view to_sv(bool val) noexcept
{
using namespace std::string_view_literals;
return val ? "true"sv : "false"sv;
}
TOML_NODISCARD
TOML_INTERNAL_LINKAGE
std::string_view to_sv(const ::toml::impl::utf8_codepoint& cp) noexcept
{
using namespace ::toml;
using namespace ::toml::impl;
if TOML_UNLIKELY(cp.value <= U'\x1F')
return low_character_escape_table[cp.value];
else if TOML_UNLIKELY(cp.value == U'\x7F')
return "\\u007F"sv;
else
return cp.as_view();
}
TOML_NODISCARD
TOML_INTERNAL_LINKAGE
std::string_view to_sv(const ::toml::impl::utf8_codepoint* cp) noexcept
{
if (cp)
return to_sv(*cp);
return ""sv;
}
template <typename T>
TOML_ATTR(nonnull)
TOML_INTERNAL_LINKAGE
TOML_NEVER_INLINE
void concatenate(char*& write_pos, char* const buf_end, const T& arg) noexcept
{
using namespace ::toml;
using namespace ::toml::impl;
static_assert(is_one_of<remove_cvref_t<T>, std::string_view, int64_t, uint64_t, double>,
"concatenate inputs are limited to std::string_view, int64_t, uint64_t and double to keep "
"instantiations to a minimum as an anti-bloat measure (hint: to_sv will probably help)");
if (write_pos >= buf_end)
return;
using arg_t = remove_cvref_t<T>;
if constexpr (std::is_same_v<arg_t, std::string_view>)
{
const auto max_chars = static_cast<size_t>(buf_end - write_pos);
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_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, to_sv(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, to_sv(std::move(ss).str()));
#endif
}
}
struct error_builder
{
static constexpr std::size_t buf_size = 512;
char buf[buf_size];
char* write_pos = buf;
char* const max_write_pos = buf + (buf_size - std::size_t{ 1 }); // allow for null terminator
TOML_NODISCARD_CTOR
error_builder(std::string_view scope) noexcept
{
concatenate(write_pos, max_write_pos, "Error while parsing "sv);
concatenate(write_pos, max_write_pos, scope);
concatenate(write_pos, max_write_pos, ": "sv);
}
template <typename T>
void append(const T& arg) noexcept
{
concatenate(write_pos, max_write_pos, arg);
}
TOML_RETURNS_BY_THROWING
auto finish(const ::toml::source_position& pos, const ::toml::source_path_ptr& source_path) const TOML_MAY_THROW
{
using namespace ::toml;
*write_pos = '\0';
#if TOML_EXCEPTIONS
throw parse_error{ buf, pos, source_path };
#else
return parse_error{ std::string(buf, static_cast<size_t>(write_pos - buf)), pos, source_path };
#endif
}
error_builder(const error_builder&) = delete;
error_builder(error_builder&&) = delete;
error_builder& operator=(const error_builder&) = delete;
error_builder& operator=(error_builder&&) = delete;
};
struct parse_scope
{
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_;
}
parse_scope(const parse_scope&) = delete;
parse_scope(parse_scope&&) = delete;
parse_scope& operator=(const parse_scope&) = delete;
parse_scope& operator=(parse_scope&&) = delete;
};
#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__)
// Q: "why not std::unique_ptr??
// A: It caused a lot of bloat on some implementations so this exists an internal substitute.
class node_ptr
{
private:
toml::node* node_ = {};
public:
TOML_NODISCARD_CTOR
node_ptr() noexcept = default;
TOML_NODISCARD_CTOR
explicit node_ptr(toml::node* n) noexcept : node_{ n }
{}
~node_ptr() noexcept
{
delete node_;
}
node_ptr& operator=(toml::node* val) noexcept
{
if (val != node_)
{
delete node_;
node_ = val;
}
return *this;
}
node_ptr(const node_ptr&) = delete;
node_ptr& operator=(const node_ptr&) = delete;
node_ptr(node_ptr&&) = delete;
node_ptr& operator=(node_ptr&&) = delete;
TOML_NODISCARD
TOML_ATTR(pure)
TOML_ALWAYS_INLINE
operator bool() const noexcept
{
return node_ != nullptr;
}
TOML_NODISCARD
TOML_ATTR(pure)
TOML_ALWAYS_INLINE
toml::node* get() const noexcept
{
return node_;
}
TOML_NODISCARD
toml::node* release() noexcept
{
auto n = node_;
node_ = nullptr;
return n;
}
};
struct parsed_key
{
toml::source_position position;
std::vector<std::string> segments;
};
struct parsed_key_value_pair
{
parsed_key key;
node_ptr value;
};
struct parse_depth_counter
{
size_t& depth_;
TOML_NODISCARD_CTOR
explicit parse_depth_counter(size_t& depth) noexcept : depth_{ depth }
{
depth_++;
}
~parse_depth_counter() noexcept
{
depth_--;
}
parse_depth_counter(const parse_depth_counter&) = delete;
parse_depth_counter(parse_depth_counter&&) = delete;
parse_depth_counter& operator=(const parse_depth_counter&) = delete;
parse_depth_counter& operator=(parse_depth_counter&&) = delete;
};
struct parsed_string
{
std::string value;
bool was_multi_line;
};
}
TOML_ANON_NAMESPACE_END;
TOML_IMPL_NAMESPACE_START
{
// 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++.
#if defined(NDEBUG) || !defined(_DEBUG)
#define assert_or_assume(cond) TOML_ASSUME(cond)
#else
#define assert_or_assume(cond) TOML_ASSERT(cond)
#endif
#define is_eof() !cp
#define assert_not_eof() assert_or_assume(cp != nullptr)
#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() static_assert(true)
#define return_if_error(...) static_assert(true)
#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
#if defined(TOML_BREAK_AT_PARSE_ERRORS) && TOML_BREAK_AT_PARSE_ERRORS
#if defined(__has_builtin)
#if __has_builtin(__builtin_debugtrap)
#define parse_error_break() __builtin_debugtrap()
#elif __has_builtin(__debugbreak)
#define parse_error_break() __debugbreak()
#endif
#endif
#ifndef parse_error_break
#if TOML_MSVC || TOML_ICC
#define parse_error_break() __debugbreak()
#else
#define parse_error_break() TOML_ASSERT(false)
#endif
#endif
#else
#define parse_error_break() static_assert(true)
#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)
TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, ex, noex);
class parser
{
private:
static constexpr size_t max_nested_values = TOML_MAX_NESTED_VALUES;
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;
size_t nested_values = {};
#if !TOML_EXCEPTIONS
mutable optional<toml::parse_error> err;
#endif
TOML_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
TOML_NEVER_INLINE
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
error_builder builder{ current_scope };
(builder.append(reason), ...);
parse_error_break();
#if TOML_EXCEPTIONS
builder.finish(pos, reader.source_path());
#else
err.emplace(builder.finish(pos, reader.source_path()));
#endif
}
template <typename... T>
TOML_RETURNS_BY_THROWING
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());
}
}
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());
}
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, to_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;
return_if_error({});
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;
}
TOML_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>
TOML_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>
TOML_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>
TOML_NODISCARD
std::string parse_basic_string(bool multi_line) 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 (multi_line)
{
consume_line_break();
return_if_error({});
set_error_and_return_if_eof({});
}
std::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 (multi_line)
{
if (is_line_break(*cp) || is_whitespace(*cp))
{
consume_leading_whitespace();
if (!consume_line_break())
set_error_and_return_default(
"line-ending backslashes must be the last non-whitespace character on the line"sv);
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 += '\b'; break;
case U'f': str += '\f'; break;
case U'n': str += '\n'; break;
case U'r': str += '\r'; break;
case U't': str += '\t'; break;
case U'"': str += '"'; break;
case U'\\': str += '\\'; break;
// unicode scalar sequences
case U'x':
#if TOML_LANG_UNRELEASED // toml/pull/709 (\xHH unicode scalar sequences)
[[fallthrough]];
#else
set_error_and_return_default(
"escape sequence '\\x' is not supported in TOML 1.0.0 and earlier"sv);
#endif
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, to_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<char>(sequence_value & 0x7Fu);
else if (sequence_value <= 0x7FFu)
{
str += static_cast<char>(0xC0u | ((sequence_value >> 6) & 0x1Fu));
str += static_cast<char>(0x80u | (sequence_value & 0x3Fu));
}
else if (sequence_value <= 0xFFFFu)
{
str += static_cast<char>(0xE0u | ((sequence_value >> 12) & 0x0Fu));
str += static_cast<char>(0x80u | ((sequence_value >> 6) & 0x1Fu));
str += static_cast<char>(0x80u | (sequence_value & 0x3Fu));
}
else
{
str += static_cast<char>(0xF0u | ((sequence_value >> 18) & 0x07u));
str += static_cast<char>(0x80u | ((sequence_value >> 12) & 0x3Fu));
str += static_cast<char>(0x80u | ((sequence_value >> 6) & 0x3Fu));
str += static_cast<char>(0x80u | (sequence_value & 0x3Fu));
}
break;
}
// ???
default: set_error_and_return_default("unknown escape sequence '\\"sv, to_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 (multi_line)
{
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 += '"';
skipping_whitespace = false;
continue;
// """ "" (two quotes somewhere in a ML string)
case 2_sz:
str.append("\"\""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 += '"'; return str;
// """ """"" (two quotes at the end of the string)
case 5_sz:
str.append("\"\""sv);
advance_and_return_if_error({}); // skip the last '"'
return str;
default: TOML_UNREACHABLE;
}
}
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 (multi_line && is_line_break(*cp))
{
consume_line_break();
return_if_error({});
if (!skipping_whitespace)
str += '\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 (multi_line)
{
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);
}
TOML_NODISCARD
std::string parse_literal_string(bool multi_line) 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 (multi_line)
{
consume_line_break();
return_if_error({});
set_error_and_return_if_eof({});
}
std::string str;
do
{
return_if_error({});
// handle closing delimiters
if (*cp == U'\'')
{
if (multi_line)
{
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 += '\''; continue;
// ''' '' (two quotes somewhere in a ML string)
case 2_sz: str.append("''"sv); continue;
// ''' ''' (the end of the string)
case 3_sz: return str;
// ''' '''' (one at the end of the string)
case 4_sz: str += '\''; return str;
// ''' ''''' (two quotes at the end of the string)
case 5_sz:
str.append("''"sv);
advance_and_return_if_error({}); // skip the last '
return str;
default: TOML_UNREACHABLE;
}
}
else
{
advance_and_return_if_error({}); // skip the closing delimiter
return str;
}
}
// handle line endings in multi-line mode
if (multi_line && is_line_break(*cp))
{
consume_line_break();
return_if_error({});
str += '\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);
}
TOML_NODISCARD
TOML_NEVER_INLINE
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 };
}
}
TOML_NODISCARD
std::string parse_bare_key_segment() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(is_bare_key_character(*cp));
std::string segment;
while (!is_eof())
{
if (!is_bare_key_character(*cp))
break;
segment.append(cp->as_view());
advance_and_return_if_error({});
}
return segment;
}
TOML_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,
to_sv(result),
"', saw '"sv,
to_sv(recording_buffer),
"'"sv);
stop_recording();
if (cp && !is_value_terminator(*cp))
set_error_and_return_default("expected value-terminator, saw '"sv, to_sv(*cp), "'"sv);
return result;
}
TOML_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 bool negative = *cp == U'-';
if (negative || *cp == 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,
to_sv(recording_buffer),
"'"sv);
stop_recording();
if (cp && !is_value_terminator(*cp))
set_error_and_return_default("expected value-terminator, saw '"sv, to_sv(*cp), "'"sv);
return inf ? (negative ? -std::numeric_limits<double>::infinity() : std::numeric_limits<double>::infinity())
: std::numeric_limits<double>::quiet_NaN();
}
TOML_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;
char first_integer_part = '\0';
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
// -.1
// +.1 (no integer part)
if (!first_integer_part)
set_error_and_return_default("expected decimal digit, saw '.'"sv);
// 1.0e+.10 (exponent cannot have '.')
else 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 '.'"sv);
seen_decimal = true;
}
else if (is_match(*cp, U'e', U'E'))
{
if (prev && !is_decimal_digit(*prev))
set_error_and_return_default("expected decimal digit, saw '"sv, to_sv(*cp), "'"sv);
// 1.0ee+10 (multiple 'e')
else if (seen_exponent)
set_error_and_return_default("expected decimal digit, saw '"sv, to_sv(*cp), "'"sv);
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, to_sv(*cp), "'"sv);
// 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, to_sv(*cp), "'"sv);
}
else if (is_decimal_digit(*cp))
{
if (!seen_decimal)
{
if (!first_integer_part)
first_integer_part = static_cast<char>(cp->bytes[0]);
else if (first_integer_part == '0')
set_error_and_return_default("leading zeroes are prohibited"sv);
}
}
else
set_error_and_return_default("expected decimal digit, saw '"sv, to_sv(*cp), "'"sv);
if (length == sizeof(chars))
set_error_and_return_default("exceeds maximum length of "sv,
static_cast<uint64_t>(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'-', U'.'))
{
set_error_and_return_if_eof({});
set_error_and_return_default("expected decimal digit, saw '"sv, to_sv(*cp), "'"sv);
}
}
// 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
}
TOML_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, to_sv(*cp), "'"sv);
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, to_sv(*cp), "'"sv);
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, to_sv(*cp), "'"sv);
// 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, to_sv(*cp), "'"sv);
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, to_sv(*cp), "'"sv);
// 0x10.0p0- (misplaced exponent sign)
else if (!is_match(*prev, U'p', U'P'))
set_error_and_return_default("expected exponent digit, saw '"sv, to_sv(*cp), "'"sv);
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, to_sv(*cp), "'"sv);
else if (current_fragment == fragments + 2 && !is_decimal_digit(*cp))
set_error_and_return_default("expected exponent digit or sign, saw '"sv, to_sv(*cp), "'"sv);
else if (current_fragment->length == sizeof(fragment::chars))
set_error_and_return_default("fragment exceeeds maximum length of "sv,
static_cast<uint64_t>(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
for (int fragment_idx = 0; fragment_idx < 3; fragment_idx++)
{
auto& f = fragments[fragment_idx];
const uint32_t base = fragment_idx == 2 ? 10u : 16u;
// left-trim zeroes
const char* c = f.chars;
size_t sig = {};
while (f.length && *c == '0')
{
f.length--;
c++;
sig++;
}
if (!f.length)
continue;
// calculate value
auto place = 1u;
for (size_t i = 0; i < f.length - 1_sz; i++)
place *= base;
uint32_t val{};
while (place)
{
if (base == 16)
val += place * hex_to_dec(*c);
else
val += place * static_cast<uint32_t>(*c - '0');
if (fragment_idx == 1)
sig++;
c++;
place /= base;
}
f.value = static_cast<double>(val);
// shift the fractional part
if (fragment_idx == 1)
{
while (sig--)
f.value /= base;
}
}
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>
TOML_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, to_sv(*cp), "'"sv);
}
else
{
// '0'
if (*cp != U'0')
set_error_and_return_default("expected '0', saw '"sv, to_sv(*cp), "'"sv);
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, to_sv(*cp), "'"sv);
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, to_sv(*cp), "'"sv);
else if (length == sizeof(chars))
set_error_and_return_default("exceeds maximum length of "sv,
static_cast<uint64_t>(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);
}
TOML_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, to_sv(cp), "'"sv);
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, to_sv(*cp), "'"sv);
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, to_sv(cp), "'"sv);
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,
static_cast<uint64_t>(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, to_sv(*cp), "'"sv);
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, to_sv(cp), "'"sv);
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,
static_cast<uint64_t>(max_days_in_month),
" (inclusive), saw "sv,
static_cast<uint64_t>(day));
if (!part_of_datetime && !is_eof() && !is_value_terminator(*cp))
set_error_and_return_default("expected value-terminator, saw '"sv, to_sv(*cp), "'"sv);
return { static_cast<uint16_t>(year), static_cast<uint8_t>(month), static_cast<uint8_t>(day) };
}
TOML_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, to_sv(cp), "'"sv);
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,
static_cast<uint64_t>(hour));
set_error_and_return_if_eof({});
// ':'
if (*cp != U':')
set_error_and_return_default("expected ':', saw '"sv, to_sv(*cp), "'"sv);
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, to_sv(cp), "'"sv);
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,
static_cast<uint64_t>(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', U'z')))
return time;
}
else
set_error_and_return_if_eof({});
if (*cp != U':')
set_error_and_return_default("expected ':', saw '"sv, to_sv(*cp), "'"sv);
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, to_sv(cp), "'"sv);
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,
static_cast<uint64_t>(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', U'z')))
return time;
if (*cp != U'.')
set_error_and_return_default("expected '.', saw '"sv, to_sv(*cp), "'"sv);
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, to_sv(*cp), "'"sv);
}
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,
static_cast<uint64_t>(max_digits));
else if (!part_of_datetime && !is_value_terminator(*cp))
set_error_and_return_default("expected value-terminator, saw '"sv, to_sv(*cp), "'"sv);
}
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;
}
TOML_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({});
// ' ', 'T' or 't'
if (!is_match(*cp, U' ', U'T', U't'))
set_error_and_return_default("expected space, 'T' or 't', saw '"sv, to_sv(*cp), "'"sv);
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' or 'z')
time_offset offset;
if (is_match(*cp, U'Z', 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, to_sv(cp), "'"sv);
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,
static_cast<int64_t>(hour));
set_error_and_return_if_eof({});
// ':'
if (*cp != U':')
set_error_and_return_default("expected ':', saw '"sv, to_sv(*cp), "'"sv);
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, to_sv(cp), "'"sv);
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,
static_cast<int64_t>(minute));
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, to_sv(*cp), "'"sv);
return { date, time, offset };
}
TOML_NODISCARD
toml::array* parse_array() TOML_MAY_THROW;
TOML_NODISCARD
toml::table* parse_inline_table() TOML_MAY_THROW;
TOML_NODISCARD
node* parse_value_known_prefixes() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(!is_control_character(*cp));
assert_or_assume(*cp != U'_');
switch (cp->value)
{
// arrays
case U'[': return parse_array();
// inline tables
case U'{':
return parse_inline_table();
// floats beginning with '.'
case U'.':
return new value{ parse_float() };
// strings
case U'"': [[fallthrough]];
case U'\'':
return new value{ std::move(parse_string().value) };
// bools
case U't': [[fallthrough]];
case U'f': [[fallthrough]];
case U'T': [[fallthrough]];
case U'F':
return new value{ parse_boolean() };
// inf/nan
case U'i': [[fallthrough]];
case U'I': [[fallthrough]];
case U'n': [[fallthrough]];
case U'N': return new value{ parse_inf_or_nan() };
}
return nullptr;
}
TOML_NODISCARD
node* parse_value() TOML_MAY_THROW
{
return_if_error({});
assert_not_eof();
assert_or_assume(!is_value_terminator(*cp));
push_parse_scope("value"sv);
const parse_depth_counter depth_counter{ nested_values };
if (nested_values > max_nested_values)
set_error_and_return_default("exceeded maximum nested value depth of "sv,
static_cast<uint64_t>(max_nested_values),
" (TOML_MAX_NESTED_VALUES)"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;
node_ptr 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.
val = parse_value_known_prefixes();
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 = new value{ 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 = new value{ parse_hex_float() };
else if (has_any(has_x | has_o | has_b))
{
int64_t i;
if (has_any(has_x))
i = parse_integer<16>();
else if (has_any(has_o))
i = parse_integer<8>();
else // has_b
i = parse_integer<2>();
return_if_error({});
val = new value{ i };
reinterpret_cast<value<int64_t>*>(val.get())->flags(value_flags::format_as_hexadecimal);
}
else if (has_any(has_e) || (has_any(begins_zero | begins_digit) && chars[1] == U'.'))
val = new value{ parse_float() };
else if (has_any(begins_sign))
{
// single-digit signed integers
if (char_count == 2_sz && has_any(has_digits))
{
val = new value{ 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 = new value{ parse_float() };
// signed infinity or nan
else if (is_match(chars[1], U'i', U'n', U'I', U'N'))
val = new value{ 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 (unwrap_enum(traits))
{
// binary integers
// 0b10
case bzero_msk | has_b:
val = new value{ parse_integer<2>() };
reinterpret_cast<value<int64_t>*>(val.get())->flags(value_flags::format_as_binary);
break;
// octal integers
// 0o10
case bzero_msk | has_o:
val = new value{ parse_integer<8>() };
reinterpret_cast<value<int64_t>*>(val.get())->flags(value_flags::format_as_octal);
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 = new value{ parse_integer<10>() }; break;
// hexadecimal integers
// 0x10
case bzero_msk | has_x:
val = new value{ parse_integer<16>() };
reinterpret_cast<value<int64_t>*>(val.get())->flags(value_flags::format_as_hexadecimal);
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 = new value{ 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 = new value{ 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 = new value{ parse_time() }; break;
// local dates
// YYYY-MM-DD
case bzero_msk | has_minus: [[fallthrough]];
case bdigit_msk | has_minus: val = new value{ 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 = new value{ 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({});
}
#if !TOML_LANG_AT_LEAST(1, 0, 0) // toml/issues/665 (heterogeneous arrays)
{
if (auto arr = val->as_array(); arr && !arr->is_homogeneous())
{
delete arr;
set_error_at(begin_pos, "arrays cannot contain values of different types before TOML 1.0.0"sv);
return_after_error({});
}
}
#endif
val.get()->source_ = { begin_pos, current_position(1), reader.source_path() };
return val.release();
}
TOML_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;
key.position = current_position();
recording_whitespace = false;
while (!is_error())
{
#if TOML_LANG_UNRELEASED // toml/issues/687 (unicode bare keys)
if (is_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,
to_sv(*cp),
"'"sv);
// 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;
}
TOML_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, to_sv(*cp), "'"sv);
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, to_sv(*cp), "'"sv);
return { std::move(key), node_ptr{ parse_value() } };
}
TOML_NODISCARD
toml::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 source_position 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 past any whitespace that followed the '['
const bool had_leading_whitespace = consume_leading_whitespace();
set_error_and_return_if_eof({});
// skip second '[' (if present)
if (*cp == U'[')
{
if (had_leading_whitespace)
set_error_and_return_default(
"[[array-of-table]] brackets must be contiguous (i.e. [ [ this ] ] is prohibited)"sv);
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({});
}
// check for a premature closing ']'
if (*cp == U']')
set_error_and_return_default("tables with blank bare keys are explicitly prohibited"sv);
// 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, to_sv(*cp), "'"sv);
if (is_arr)
{
advance_and_return_if_error_or_eof({});
if (*cp != U']')
set_error_and_return_default("expected ']', saw '"sv, to_sv(*cp), "'"sv);
}
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, to_sv(cp), "'"sv);
}
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->map.emplace(key.segments[i], new toml::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>().elements.empty());
TOML_ASSERT(child->ref_cast<array>().elements.back()->is_table());
parent = &child->ref_cast<array>().elements.back()->ref_cast<table>();
}
else
{
if (!is_arr && child->type() == node_type::table)
set_error_and_return_default("cannot redefine existing table '"sv,
to_sv(recording_buffer),
"'"sv);
else
set_error_and_return_default("cannot redefine existing "sv,
to_sv(child->type()),
" '"sv,
to_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->map.emplace(key.segments.back(), new toml::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->elements.emplace_back(new toml::table{});
tab_arr->elements.back()->source_ = { header_begin_pos, header_end_pos, reader.source_path() };
return &tab_arr->elements.back()->ref_cast<table>();
}
// otherwise we're just making a table
else
{
auto tab =
&parent->map.emplace(key.segments.back(), new toml::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->elements.emplace_back(new toml::table{});
tab_arr->elements.back()->source_ = { header_begin_pos, header_end_pos, reader.source_path() };
return &tab_arr->elements.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);
found && (tbl->empty() || tbl->is_homogeneous<table>()))
{
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_at(header_begin_pos,
"cannot redefine existing table '"sv,
to_sv(recording_buffer),
"'"sv);
return_after_error({});
}
else
{
set_error_at(header_begin_pos,
"cannot redefine existing "sv,
to_sv(matching_node->type()),
" '"sv,
to_sv(recording_buffer),
"' as "sv,
is_arr ? "array-of-tables"sv : "table"sv);
return_after_error({});
}
}
}
void parse_key_value_pair_and_insert(toml::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 it's a dotted kvp we need to spawn the sub-tables if necessary,
// and set the target table to the second-to-last one in the chain
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->map.emplace(std::move(kvp.key.segments[i]), new toml::table{}).first->second.get();
dotted_key_tables.push_back(&child->ref_cast<table>());
child->source_ = kvp.value.get()->source_;
}
else if (!child->is_table()
|| !(find(dotted_key_tables, &child->ref_cast<table>())
|| find(implicit_tables, &child->ref_cast<table>())))
set_error_at(kvp.key.position,
"cannot redefine existing "sv,
to_sv(child->type()),
" as dotted key-value pair"sv);
else
child->source_.end = kvp.value.get()->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.get()->type())
set_error("cannot redefine existing "sv,
to_sv(conflicting_node->type()),
" '"sv,
to_sv(recording_buffer),
"'"sv);
else
set_error("cannot redefine existing "sv,
to_sv(conflicting_node->type()),
" '"sv,
to_sv(recording_buffer),
"' as "sv,
to_sv(kvp.value.get()->type()));
}
return_if_error();
tab->map.emplace(std::move(kvp.key.segments.back()), std::unique_ptr<node>{ kvp.value.release() });
}
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;
return_if_error();
// [tables]
// [[table array]]
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 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, to_sv(cp), "'"sv);
}
else // ??
set_error("expected keys, tables, whitespace or comments, saw '"sv, to_sv(cp), "'"sv);
}
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.map)
{
(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.elements)
{
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_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_EXTERNAL_LINKAGE
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({});
node_ptr arr{ new array{} };
auto& vals = reinterpret_cast<array*>(arr.get())->elements;
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, to_sv(*cp), "'"sv);
continue;
}
prev = val;
vals.emplace_back(parse_value());
}
}
return_if_error({});
return reinterpret_cast<array*>(arr.release());
}
TOML_EXTERNAL_LINKAGE
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({});
node_ptr tab{ new table{} };
reinterpret_cast<table*>(tab.get())->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;
}
return_if_error({});
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, to_sv(*cp), "'"sv);
else
{
prev = kvp;
parse_key_value_pair_and_insert(reinterpret_cast<table*>(tab.get()));
}
}
else
set_error_and_return_default("expected key or closing '}', saw '"sv, to_sv(*cp), "'"sv);
}
return_if_error({});
return reinterpret_cast<table*>(tab.release());
}
TOML_EXTERNAL_LINKAGE
parse_result do_parse(utf8_reader_interface && reader) TOML_MAY_THROW
{
return impl::parser{ std::move(reader) };
}
TOML_NODISCARD
TOML_INTERNAL_LINKAGE
parse_result do_parse_file(std::string_view file_path) TOML_MAY_THROW
{
#if TOML_EXCEPTIONS
#define TOML_PARSE_FILE_ERROR(msg, path) \
throw parse_error \
{ \
msg, source_position{}, std::make_shared<const std::string>(std::move(path)) \
}
#else
#define TOML_PARSE_FILE_ERROR(msg, path) \
return parse_result \
{ \
parse_error \
{ \
msg, source_position{}, std::make_shared<const std::string>(std::move(path)) \
} \
}
#endif
std::string file_path_str(file_path);
// open file with a custom-sized stack buffer
std::ifstream file;
char file_buffer[sizeof(void*) * 1024_sz];
file.rdbuf()->pubsetbuf(file_buffer, sizeof(file_buffer));
file.open(file_path_str, std::ifstream::in | std::ifstream::binary | std::ifstream::ate);
if (!file.is_open())
TOML_PARSE_FILE_ERROR("File could not be opened for reading", file_path_str);
// get size
const auto file_size = file.tellg();
if (file_size == -1)
TOML_PARSE_FILE_ERROR("Could not determine file size", file_path_str);
file.seekg(0, std::ifstream::beg);
// read the whole file into memory first if the file isn't too large
constexpr auto large_file_threshold = 1024 * 1024 * 2; // 2 MB
if (file_size <= large_file_threshold)
{
std::vector<char> file_data;
file_data.resize(static_cast<size_t>(file_size));
file.read(file_data.data(), static_cast<std::streamsize>(file_size));
return parse(std::string_view{ 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
}
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
#undef assert_or_assume
#undef parse_error_break
}
TOML_IMPL_NAMESPACE_END;
TOML_NAMESPACE_START
{
TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, ex, noex);
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_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) });
}
TOML_EXTERNAL_LINKAGE
parse_result parse_file(std::string_view file_path) TOML_MAY_THROW
{
return impl::do_parse_file(file_path);
}
#if TOML_HAS_CHAR8
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_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) });
}
TOML_EXTERNAL_LINKAGE
parse_result parse_file(std::u8string_view file_path) TOML_MAY_THROW
{
std::string file_path_str;
file_path_str.resize(file_path.length());
memcpy(file_path_str.data(), file_path.data(), file_path.length());
return impl::do_parse_file(file_path_str);
}
#endif // TOML_HAS_CHAR8
#if TOML_WINDOWS_COMPAT
TOML_EXTERNAL_LINKAGE
parse_result parse(std::string_view doc, std::wstring_view source_path) TOML_MAY_THROW
{
return impl::do_parse(impl::utf8_reader{ doc, impl::narrow(source_path) });
}
TOML_EXTERNAL_LINKAGE
parse_result parse_file(std::wstring_view file_path) TOML_MAY_THROW
{
return impl::do_parse_file(impl::narrow(file_path));
}
#endif // TOML_WINDOWS_COMPAT
#if TOML_HAS_CHAR8 && TOML_WINDOWS_COMPAT
TOML_EXTERNAL_LINKAGE
parse_result parse(std::u8string_view doc, std::wstring_view source_path) TOML_MAY_THROW
{
return impl::do_parse(impl::utf8_reader{ doc, impl::narrow(source_path) });
}
#endif // TOML_HAS_CHAR8 && TOML_WINDOWS_COMPAT
TOML_ABI_NAMESPACE_END; // TOML_EXCEPTIONS
inline namespace literals
{
TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, lit_ex, lit_noex);
TOML_EXTERNAL_LINKAGE
parse_result operator"" _toml(const char* str, size_t len) TOML_MAY_THROW
{
return parse(std::string_view{ str, len });
}
#if TOML_HAS_CHAR8
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 // TOML_HAS_CHAR8
TOML_ABI_NAMESPACE_END; // TOML_EXCEPTIONS
}
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
#endif // TOML_PARSER
//******** impl/default_formatter_impl.h *****************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_DISABLE_ARITHMETIC_WARNINGS;
TOML_IMPL_NAMESPACE_START
{
inline constexpr size_t default_formatter_line_wrap = 120_sz;
TOML_EXTERNAL_LINKAGE
std::string default_formatter_make_key_segment(const std::string& str) noexcept
{
if (str.empty())
return "''"s;
else
{
bool requires_quotes = false;
{
utf8_decoder decoder;
for (size_t i = 0; i < str.length() && !requires_quotes; i++)
{
decoder(static_cast<uint8_t>(str[i]));
if (decoder.error())
requires_quotes = true;
else if (decoder.has_code_point())
requires_quotes = !is_bare_key_character(decoder.codepoint);
}
}
if (requires_quotes)
{
std::string s;
s.reserve(str.length() + 2_sz);
s += '"';
for (auto c : str)
{
if TOML_UNLIKELY(c >= '\x00' && c <= '\x1F')
s.append(low_character_escape_table[c]);
else if TOML_UNLIKELY(c == '\x7F')
s.append("\\u007F"sv);
else if TOML_UNLIKELY(c == '"')
s.append("\\\""sv);
else
s += c;
}
s += '"';
return s;
}
else
return str;
}
}
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<std::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(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;
default: TOML_UNREACHABLE;
}
TOML_UNREACHABLE;
}
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;
}
}
TOML_IMPL_NAMESPACE_END;
TOML_NAMESPACE_START
{
template <typename Char>
inline 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_NAMESPACE_END;
// implementations of windows wide string nonsense
#if TOML_WINDOWS_COMPAT
#ifndef _WINDOWS_
#if TOML_INCLUDE_WINDOWS_H
#include <Windows.h>
#else
extern "C" {
__declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int CodePage,
unsigned long dwFlags,
const wchar_t* lpWideCharStr,
int cchWideChar,
char* lpMultiByteStr,
int cbMultiByte,
const char* lpDefaultChar,
int* lpUsedDefaultChar);
__declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int CodePage,
unsigned long dwFlags,
const char* lpMultiByteStr,
int cbMultiByte,
wchar_t* lpWideCharStr,
int cchWideChar);
}
#endif
#endif // _WINDOWS_
TOML_IMPL_NAMESPACE_START
{
TOML_EXTERNAL_LINKAGE
std::string narrow(std::wstring_view str) noexcept
{
if (str.empty())
return {};
std::string s;
const auto len =
::WideCharToMultiByte(65001, 0, str.data(), static_cast<int>(str.length()), nullptr, 0, nullptr, nullptr);
if (len)
{
s.resize(static_cast<size_t>(len));
::WideCharToMultiByte(65001,
0,
str.data(),
static_cast<int>(str.length()),
s.data(),
len,
nullptr,
nullptr);
}
return s;
}
TOML_EXTERNAL_LINKAGE
std::wstring widen(std::string_view str) noexcept
{
if (str.empty())
return {};
std::wstring s;
const auto len = ::MultiByteToWideChar(65001, 0, str.data(), static_cast<int>(str.length()), nullptr, 0);
if (len)
{
s.resize(static_cast<size_t>(len));
::MultiByteToWideChar(65001, 0, str.data(), static_cast<int>(str.length()), s.data(), len);
}
return s;
}
#if TOML_HAS_CHAR8
TOML_EXTERNAL_LINKAGE
std::wstring widen(std::u8string_view str) noexcept
{
if (str.empty())
return {};
return widen(std::string_view{ reinterpret_cast<const char*>(str.data()), str.length() });
}
#endif // TOML_HAS_CHAR8
}
TOML_IMPL_NAMESPACE_END;
#endif // TOML_WINDOWS_COMPAT
TOML_POP_WARNINGS;
//******** impl/json_formatter_impl.h ********************************************************************************
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
TOML_NAMESPACE_START
{
template <typename Char>
inline 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, false);
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_NAMESPACE_END;
TOML_POP_WARNINGS;
#if !TOML_HEADER_ONLY
//******** impl/template_instantiations.h ****************************************************************************
TOML_DISABLE_WARNINGS;
#include <ostream>
#include <istream>
TOML_ENABLE_WARNINGS;
#if TOML_PARSER
#endif
TOML_PUSH_WARNINGS;
TOML_DISABLE_SPAM_WARNINGS;
TOML_DISABLE_SWITCH_WARNINGS;
// internal implementation namespace
TOML_IMPL_NAMESPACE_START
{
// formatters
template class formatter<char>;
// print to stream machinery
template void print_floating_point_to_stream(double, std::ostream&, bool);
}
TOML_IMPL_NAMESPACE_END;
// public namespace
TOML_NAMESPACE_START
{
// value<>
template class value<std::string>;
template class value<int64_t>;
template class value<double>;
template class value<bool>;
template class value<date>;
template class value<time>;
template class value<date_time>;
// node_view
template class node_view<node>;
template class node_view<const node>;
// formatters
template class default_formatter<char>;
template class json_formatter<char>;
// various ostream operators
template std::ostream& operator<<(std::ostream&, const source_position&);
template std::ostream& operator<<(std::ostream&, const source_region&);
template std::ostream& operator<<(std::ostream&, const date&);
template std::ostream& operator<<(std::ostream&, const time&);
template std::ostream& operator<<(std::ostream&, const time_offset&);
template std::ostream& operator<<(std::ostream&, const date_time&);
template std::ostream& operator<<(std::ostream&, const value<std::string>&);
template std::ostream& operator<<(std::ostream&, const value<int64_t>&);
template std::ostream& operator<<(std::ostream&, const value<double>&);
template std::ostream& operator<<(std::ostream&, const value<bool>&);
template std::ostream& operator<<(std::ostream&, const value<toml::date>&);
template std::ostream& operator<<(std::ostream&, const value<toml::time>&);
template std::ostream& operator<<(std::ostream&, const value<toml::date_time>&);
template std::ostream& operator<<(std::ostream&, default_formatter<char>&);
template std::ostream& operator<<(std::ostream&, default_formatter<char>&&);
template std::ostream& operator<<(std::ostream&, json_formatter<char>&);
template std::ostream& operator<<(std::ostream&, json_formatter<char>&&);
template std::ostream& operator<<(std::ostream&, const table&);
template std::ostream& operator<<(std::ostream&, const array&);
template std::ostream& operator<<(std::ostream&, const node_view<node>&);
template std::ostream& operator<<(std::ostream&, const node_view<const node>&);
template std::ostream& operator<<(std::ostream&, node_type);
// node::value, node_view:::value etc
#define TOML_INSTANTIATE(name, T) \
template optional<T> node::name<T>() const noexcept; \
template optional<T> node_view<node>::name<T>() const noexcept; \
template optional<T> node_view<const node>::name<T>() const noexcept
TOML_INSTANTIATE(value_exact, std::string_view);
TOML_INSTANTIATE(value_exact, std::string);
TOML_INSTANTIATE(value_exact, const char*);
TOML_INSTANTIATE(value_exact, int64_t);
TOML_INSTANTIATE(value_exact, double);
TOML_INSTANTIATE(value_exact, date);
TOML_INSTANTIATE(value_exact, time);
TOML_INSTANTIATE(value_exact, date_time);
TOML_INSTANTIATE(value_exact, bool);
TOML_INSTANTIATE(value, std::string_view);
TOML_INSTANTIATE(value, std::string);
TOML_INSTANTIATE(value, const char*);
TOML_INSTANTIATE(value, signed char);
TOML_INSTANTIATE(value, signed short);
TOML_INSTANTIATE(value, signed int);
TOML_INSTANTIATE(value, signed long);
TOML_INSTANTIATE(value, signed long long);
TOML_INSTANTIATE(value, unsigned char);
TOML_INSTANTIATE(value, unsigned short);
TOML_INSTANTIATE(value, unsigned int);
TOML_INSTANTIATE(value, unsigned long);
TOML_INSTANTIATE(value, unsigned long long);
TOML_INSTANTIATE(value, double);
TOML_INSTANTIATE(value, float);
TOML_INSTANTIATE(value, date);
TOML_INSTANTIATE(value, time);
TOML_INSTANTIATE(value, date_time);
TOML_INSTANTIATE(value, bool);
#if TOML_HAS_CHAR8
TOML_INSTANTIATE(value_exact, std::u8string_view);
TOML_INSTANTIATE(value_exact, std::u8string);
TOML_INSTANTIATE(value_exact, const char8_t*);
TOML_INSTANTIATE(value, std::u8string_view);
TOML_INSTANTIATE(value, std::u8string);
TOML_INSTANTIATE(value, const char8_t*);
#endif
#if TOML_WINDOWS_COMPAT
TOML_INSTANTIATE(value_exact, std::wstring);
TOML_INSTANTIATE(value, std::wstring);
#endif
#undef TOML_INSTANTIATE
// parser instantiations
#if TOML_PARSER
// parse error ostream
template std::ostream& operator<<(std::ostream&, const parse_error&);
// parse() and parse_file()
TOML_ABI_NAMESPACE_BOOL(TOML_EXCEPTIONS, ex, noex);
template parse_result parse(std::istream&, std::string_view) TOML_MAY_THROW;
template parse_result parse(std::istream&, std::string &&) TOML_MAY_THROW;
TOML_ABI_NAMESPACE_END; // TOML_EXCEPTIONS
#endif // TOML_PARSER
}
TOML_NAMESPACE_END;
TOML_POP_WARNINGS;
#endif // !TOML_HEADER_ONLY
#endif // TOML_IMPLEMENTATION
TOML_POP_WARNINGS; // TOML_DISABLE_SPAM_WARNINGS
// macro hygiene
#if TOML_UNDEF_MACROS
#undef TOML_ABI_NAMESPACE_BOOL
#undef TOML_ABI_NAMESPACE_END
#undef TOML_ABI_NAMESPACE_START
#undef TOML_ABI_NAMESPACES
#undef TOML_ABSTRACT_BASE
#undef TOML_ALWAYS_INLINE
#undef TOML_ANON_NAMESPACE
#undef TOML_ANON_NAMESPACE_END
#undef TOML_ANON_NAMESPACE_START
#undef TOML_ARM
#undef TOML_ASSERT
#undef TOML_ASSUME
#undef TOML_ASYMMETRICAL_EQUALITY_OPS
#undef TOML_ATTR
#undef TOML_CLANG
#undef TOML_COMPILER_EXCEPTIONS
#undef TOML_CONCAT
#undef TOML_CONCAT_1
#undef TOML_CONSTEVAL
#undef TOML_CONSTRAINED_TEMPLATE
#undef TOML_CPP
#undef TOML_DISABLE_ARITHMETIC_WARNINGS
#undef TOML_DISABLE_CODE_ANALYSIS_WARNINGS
#undef TOML_DISABLE_INIT_WARNINGS
#undef TOML_DISABLE_SHADOW_WARNINGS
#undef TOML_DISABLE_SPAM_WARNINGS
#undef TOML_DISABLE_SUGGEST_WARNINGS
#undef TOML_DISABLE_SWITCH_WARNINGS
#undef TOML_DISABLE_WARNINGS
#undef TOML_EMPTY_BASES
#undef TOML_ENABLE_IF
#undef TOML_ENABLE_WARNINGS
#undef TOML_EVAL_BOOL_0
#undef TOML_EVAL_BOOL_1
#undef TOML_EXTERNAL_LINKAGE
#undef TOML_FLOAT_CHARCONV
#undef TOML_FLOAT128
#undef TOML_FLOAT16
#undef TOML_FP16
#undef TOML_GCC
#undef TOML_HAS_ATTR
#undef TOML_HAS_CHAR8
#undef TOML_HAS_CUSTOM_OPTIONAL_TYPE
#undef TOML_HAS_INCLUDE
#undef TOML_ICC
#undef TOML_ICC_CL
#undef TOML_IMPL_NAMESPACE_END
#undef TOML_IMPL_NAMESPACE_START
#undef TOML_IMPLEMENTATION
#undef TOML_INCLUDE_WINDOWS_H
#undef TOML_INT_CHARCONV
#undef TOML_INT128
#undef TOML_INTELLISENSE
#undef TOML_INTERNAL_LINKAGE
#undef TOML_LANG_AT_LEAST
#undef TOML_LANG_EFFECTIVE_VERSION
#undef TOML_LANG_HIGHER_THAN
#undef TOML_LANG_UNRELEASED
#undef TOML_LAUNDER
#undef TOML_LIFETIME_HOOKS
#undef TOML_LIKELY
#undef TOML_MAKE_FLAGS
#undef TOML_MAKE_FLAGS_
#undef TOML_MAKE_VERSION
#undef TOML_MAY_THROW
#undef TOML_MSVC
#undef TOML_NAMESPACE
#undef TOML_NAMESPACE_END
#undef TOML_NAMESPACE_START
#undef TOML_NEVER_INLINE
#undef TOML_NODISCARD
#undef TOML_NODISCARD_CTOR
#undef TOML_PARSER_TYPENAME
#undef TOML_POP_WARNINGS
#undef TOML_PUSH_WARNINGS
#undef TOML_REQUIRES
#undef TOML_SA_LIST_BEG
#undef TOML_SA_LIST_END
#undef TOML_SA_LIST_NEW
#undef TOML_SA_LIST_NXT
#undef TOML_SA_LIST_SEP
#undef TOML_SA_NATIVE_VALUE_TYPE_LIST
#undef TOML_SA_NEWLINE
#undef TOML_SA_NODE_TYPE_LIST
#undef TOML_SA_UNWRAPPED_NODE_TYPE_LIST
#undef TOML_SA_VALUE_EXACT_FUNC_MESSAGE
#undef TOML_SA_VALUE_FUNC_MESSAGE
#undef TOML_SA_VALUE_MESSAGE_CONST_CHAR8
#undef TOML_SA_VALUE_MESSAGE_U8STRING_VIEW
#undef TOML_SA_VALUE_MESSAGE_WSTRING
#undef TOML_SIMPLE_STATIC_ASSERT_MESSAGES
#undef TOML_TRIVIAL_ABI
#undef TOML_UINT128
#undef TOML_UNLIKELY
#undef TOML_UNREACHABLE
#undef TOML_USING_ANON_NAMESPACE
#endif
#endif // INCLUDE_TOMLPLUSPLUS_H
Reference in New Issue View Git Blame Copy Permalink