1079 lines
44 KiB
C++
1079 lines
44 KiB
C++
#pragma once
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#include "CoreTypes.h"
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#include "String/Char.h"
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#include "Containers/Array.h"
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#include "String/StringView.h"
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#include "Templates/Utility.h"
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#include "Templates/TypeHash.h"
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#include "Templates/Optional.h"
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#include "Templates/Container.h"
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#include "Containers/Iterator.h"
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#include "TypeTraits/TypeTraits.h"
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#include "Miscellaneous/Compare.h"
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#include "Memory/MemoryOperator.h"
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#include "Memory/ObserverPointer.h"
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#include "Miscellaneous/AssertionMacros.h"
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NAMESPACE_REDCRAFT_BEGIN
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NAMESPACE_MODULE_BEGIN(Redcraft)
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NAMESPACE_MODULE_BEGIN(Utility)
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template <CCharType T>
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using TDefaultStringAllocator = TInlineAllocator<(40 - 3 * sizeof(size_t)) / sizeof(T)>;
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template <CCharType T, CAllocator<T> Allocator = TDefaultStringAllocator<T>>
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class TString final
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{
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public:
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using ElementType = typename TArray<T, Allocator>::ElementType;
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using AllocatorType = typename TArray<T, Allocator>::AllocatorType;
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using Reference = typename TArray<T, Allocator>:: Reference;
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using ConstReference = typename TArray<T, Allocator>::ConstReference;
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using Iterator = typename TArray<T, Allocator>:: Iterator;
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using ConstIterator = typename TArray<T, Allocator>::ConstIterator;
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using ReverseIterator = typename TArray<T, Allocator>:: ReverseIterator;
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using ConstReverseIterator = typename TArray<T, Allocator>::ConstReverseIterator;
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static_assert(CContiguousIterator< Iterator>);
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static_assert(CContiguousIterator<ConstIterator>);
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/** Default constructor. Constructs an empty string. */
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FORCEINLINE TString() : NativeData({ LITERAL(ElementType, '\0') }) { }
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/** Constructs the string with 'Count' copies of characters with 'InValue'. */
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FORCEINLINE TString(size_t Count, ElementType InChar) : TString(MakeCountedConstantIterator(InChar, Count), DefaultSentinel) { }
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/** Constructs a string with the contents of the range ['InPtr', 'InPtr' + 'Count'). */
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FORCEINLINE TString(const ElementType* InPtr, size_t Count) : TString(TStringView<ElementType>(InPtr, Count))
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{
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checkf(InPtr != nullptr, TEXT("TString cannot be initialized by nullptr. Please check the pointer."));
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}
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FORCEINLINE TString(nullptr_t, size_t) = delete;
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/** Constructs a string with the contents of the range ['InPtr', '\0'). */
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FORCEINLINE TString(const ElementType* InPtr) : TString(TStringView<ElementType>(InPtr))
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{
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checkf(InPtr != nullptr, TEXT("TString cannot be initialized by nullptr. Please check the pointer."));
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}
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FORCEINLINE TString(nullptr_t) = delete;
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/** Constructs the string with the contents of the 'View'. */
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FORCEINLINE TString(TStringView<ElementType> View) : TString(View.Begin(), View.End()) { }
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/** Constructs the string with the contents of the range ['First', 'Last'). */
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template <CInputIterator I, CSentinelFor<I> S> requires (CConstructibleFrom<ElementType, TIteratorReferenceType<I>>)
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TString(I First, S Last)
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{
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if constexpr (CForwardIterator<I>)
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{
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if constexpr (CSizedSentinelFor<S, I>) { checkf(First <= Last, TEXT("Illegal range iterator. Please check First <= Last.")); }
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const size_t Count = Iteration::Distance(First, Last);
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NativeData.SetNum(Count + 1);
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for (size_t Index = 0; Index != Count; ++Index)
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{
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NativeData[Index] = ElementType(*First++);
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}
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NativeData.Back() = LITERAL(ElementType, '\0');
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}
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else
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{
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while (First != Last)
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{
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NativeData.PushBack(ElementType(*First));
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++First;
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}
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NativeData.PushBack(LITERAL(ElementType, '\0'));
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}
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}
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/** Copy constructor. Constructs the string with the copy of the contents of 'InValue'. */
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FORCEINLINE TString(const TString&) = default;
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/** Move constructor. After the move, 'InValue' is guaranteed to be empty. */
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FORCEINLINE TString(TString&& InValue) : NativeData(MoveTemp(InValue.NativeData)) { InValue.NativeData.PushBack(LITERAL(ElementType, '\0')); }
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/** Constructs the string with the contents of the initializer list. */
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FORCEINLINE TString(initializer_list<ElementType> IL) : TString(Iteration::Begin(IL), Iteration::End(IL)) { }
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/** Destructs the string. The destructors of the characters are called and the used storage is deallocated. */
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FORCEINLINE ~TString() = default;
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/** Copy assignment operator. Replaces the contents with a copy of the contents of 'InValue'. */
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FORCEINLINE TString& operator=(const TString&) = default;
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/** Move assignment operator. After the move, 'InValue' is guaranteed to be empty. */
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FORCEINLINE TString& operator=(TString&& InValue) { NativeData = MoveTemp(InValue.NativeData); InValue.NativeData.PushBack(LITERAL(ElementType, '\0')); return *this; }
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/** Compares the contents of two strings. */
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FORCEINLINE NODISCARD friend bool operator==(const TString& LHS, const TString& RHS) { return TStringView<ElementType>(LHS) == TStringView<ElementType>(RHS); }
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/** Compares the contents of a string and a character. */
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FORCEINLINE NODISCARD friend bool operator==(const TString& LHS, ElementType RHS) { return TStringView<ElementType>(LHS) == RHS; }
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FORCEINLINE NODISCARD friend bool operator==(const TString& LHS, const ElementType* RHS) { return TStringView<ElementType>(LHS) == RHS; }
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FORCEINLINE NODISCARD friend bool operator==( ElementType LHS, const TString& RHS) { return LHS == TStringView<ElementType>(RHS); }
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FORCEINLINE NODISCARD friend bool operator==(const ElementType* LHS, const TString& RHS) { return LHS == TStringView<ElementType>(RHS); }
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/** Compares the contents of 'LHS' and 'RHS' lexicographically. */
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FORCEINLINE NODISCARD friend auto operator<=>(const TString& LHS, const TString& RHS) { return TStringView<ElementType>(LHS) <=> TStringView<ElementType>(RHS); }
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/** Compares the contents of 'LHS' and 'RHS' lexicographically. */
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FORCEINLINE NODISCARD friend auto operator<=>(const TString& LHS, ElementType RHS) { return TStringView<ElementType>(LHS) <=> RHS; }
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FORCEINLINE NODISCARD friend auto operator<=>(const TString& LHS, const ElementType* RHS) { return TStringView<ElementType>(LHS) <=> RHS; }
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FORCEINLINE NODISCARD friend auto operator<=>( ElementType LHS, const TString& RHS) { return LHS <=> TStringView<ElementType>(RHS); }
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FORCEINLINE NODISCARD friend auto operator<=>(const ElementType* LHS, const TString& RHS) { return LHS <=> TStringView<ElementType>(RHS); }
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/** Inserts 'InValue' before 'Index' in the string. */
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FORCEINLINE Iterator Insert(size_t Index, ElementType InValue)
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{
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checkf(Index <= Num(), TEXT("Illegal index. Please check Index <= Num()."));
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return Insert(Begin() + Index, InValue);
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}
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/** Inserts 'InValue' before 'Iter' in the string. */
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FORCEINLINE Iterator Insert(ConstIterator Iter, ElementType InValue)
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{
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checkf(IsValidIterator(Iter), TEXT("Read access violation. Please check IsValidIterator()."));
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return NativeData.Insert(Iter, InValue);
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}
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/** Inserts 'Count' copies of the 'InValue' before 'Index' in the string. */
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FORCEINLINE Iterator Insert(size_t Index, size_t Count, ElementType InValue)
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{
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checkf(Index <= Num(), TEXT("Illegal index. Please check Index <= Num()."));
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return Insert(Begin() + Index, Count, InValue);
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}
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/** Inserts 'Count' copies of the 'InValue' before 'Iter' in the string. */
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FORCEINLINE Iterator Insert(ConstIterator Iter, size_t Count, ElementType InValue)
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{
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checkf(IsValidIterator(Iter), TEXT("Read access violation. Please check IsValidIterator()."));
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return NativeData.Insert(Iter, Count, InValue);
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}
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/** Inserts characters from the 'View' before 'Index' in the string. */
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FORCEINLINE Iterator Insert(size_t Index, TStringView<ElementType> View)
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{
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checkf(Index <= Num(), TEXT("Illegal index. Please check Index <= Num()."));
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return Insert(Begin() + Index, View);
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}
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/** Inserts characters from the 'View' before 'Iter' in the string. */
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FORCEINLINE Iterator Insert(ConstIterator Iter, TStringView<ElementType> View)
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{
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checkf(IsValidIterator(Iter), TEXT("Read access violation. Please check IsValidIterator()."));
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return Insert(Iter, View.Begin(), View.End());
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}
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/** Inserts characters from the range ['First', 'Last') before 'Index' in the string. */
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template <CInputIterator I, CSentinelFor<I> S> requires (CConstructibleFrom<ElementType, TIteratorReferenceType<I>>)
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FORCEINLINE Iterator Insert(size_t Index, I First, S Last)
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{
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checkf(Index <= Num(), TEXT("Illegal index. Please check Index <= Num()."));
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return Insert(Begin() + Index, MoveTemp(First), MoveTemp(Last));
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}
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/** Inserts characters from the range ['First', 'Last') before 'Iter'. */
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template <CInputIterator I, CSentinelFor<I> S> requires (CConstructibleFrom<ElementType, TIteratorReferenceType<I>>)
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FORCEINLINE Iterator Insert(ConstIterator Iter, I First, S Last)
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{
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checkf(IsValidIterator(Iter), TEXT("Read access violation. Please check IsValidIterator()."));
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return NativeData.Insert(Iter, MoveTemp(First), MoveTemp(Last));
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}
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/** Inserts characters from the initializer list before 'Index' in the string. */
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FORCEINLINE Iterator Insert(size_t Index, initializer_list<ElementType> IL)
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{
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checkf(Index <= Num(), TEXT("Illegal index. Please check Index <= Num()."));
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return Insert(Begin() + Index, IL);
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}
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/** Inserts characters from the initializer list before 'Iter' in the string. */
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FORCEINLINE Iterator Insert(ConstIterator Iter, initializer_list<ElementType> IL)
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{
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checkf(IsValidIterator(Iter), TEXT("Read access violation. Please check IsValidIterator()."));
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return NativeData.Insert(Iter, IL);
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}
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/** Erases the character at 'Index' in the string. But it may change the order of characters. */
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FORCEINLINE Iterator Erase(size_t Index, bool bAllowShrinking = true)
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{
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checkf(Index < Num(), TEXT("Illegal index. Please check Index < Num()."));
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return Erase(Begin() + Index, bAllowShrinking);
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}
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/** Erases the character at 'Iter' in the string. But it may change the order of characters. */
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FORCEINLINE Iterator Erase(ConstIterator Iter, bool bAllowShrinking = true)
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{
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checkf(IsValidIterator(Iter) && Iter != End(), TEXT("Read access violation. Please check IsValidIterator()."));
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return NativeData.StableErase(Iter, bAllowShrinking);
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}
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/** Erases 'CountToErase' characters starting from 'Index' in the string. But it may change the order of characters. */
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FORCEINLINE Iterator Erase(size_t Index, size_t CountToErase, bool bAllowShrinking = true)
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{
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checkf(Index <= Num() && Index + CountToErase <= Num(), TEXT("Illegal substring range. Please check Index and CountToErase."));
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return Erase(Begin() + Index, Begin() + Index + CountToErase, bAllowShrinking);
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}
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/** Erases the characters in the range ['First', 'Last') in the string. But it may change the order of characters. */
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FORCEINLINE Iterator Erase(ConstIterator First, ConstIterator Last, bool bAllowShrinking = true)
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{
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checkf(IsValidIterator(First) && IsValidIterator(Last) && First <= Last, TEXT("Read access violation. Please check IsValidIterator()."));
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return NativeData.StableErase(First, Last, bAllowShrinking);
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}
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/** Appends the given character value to the end of the string. */
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FORCEINLINE void PushBack(ElementType InValue) { NativeData.Back() = InValue; NativeData.PushBack(LITERAL(ElementType, '\0')); }
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/** Removes the last character of the string. The string cannot be empty. */
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FORCEINLINE void PopBack(bool bAllowShrinking = true) { NativeData.PopBack(bAllowShrinking); NativeData.Back() = LITERAL(ElementType, '\0'); }
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/** Appends 'Count' copies of the 'InValue' to the end of the string. */
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TString& Append(size_t Count, ElementType InChar) { return Append(MakeCountedConstantIterator(InChar, Count), DefaultSentinel); }
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/** Appends the contents of the 'View' to the end of the string. */
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FORCEINLINE TString& Append(TStringView<ElementType> View) { return Append(View.Begin(), View.End()); }
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/** Appends the contents of the range ['First', 'Last') to the end of the string. */
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template <CInputIterator I, CSentinelFor<I> S> requires (CConstructibleFrom<ElementType, TIteratorReferenceType<I>>)
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TString& Append(I First, S Last)
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{
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if constexpr (CForwardIterator<I>)
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{
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if constexpr (CSizedSentinelFor<S, I>) { checkf(First <= Last, TEXT("Illegal range iterator. Please check First <= Last.")); }
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const size_t Count = Iteration::Distance(First, Last);
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const size_t CurrentNum = Num();
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NativeData.SetNum(CurrentNum + Count + 1);
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for (size_t Index = CurrentNum; Index != CurrentNum + Count; ++Index)
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{
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NativeData[Index] = ElementType(*First++);
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}
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NativeData.Back() = LITERAL(ElementType, '\0');
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}
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else
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{
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NativeData.Insert(NativeData.End() - 1, MoveTemp(First), MoveTemp(Last));
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NativeData.PushBack(LITERAL(ElementType, '\0'));
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}
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return *this;
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}
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/** Appends the contents of the initializer list to the end of the string. */
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FORCEINLINE TString& Append(initializer_list<ElementType> IL) { return Append(Iteration::Begin(IL), Iteration::End(IL)); }
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/** Appends the given character value to the end of the string. */
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FORCEINLINE TString& operator+=(ElementType InChar) { return Append(1, InChar); }
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/** Appends the contents of the 'View' to the end of the string. */
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FORCEINLINE TString& operator+=(TStringView<ElementType> View) { return Append(View); }
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/** Appends the contents of the range ['First', 'Last') to the end of the string. */
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FORCEINLINE TString& operator+=(initializer_list<ElementType> IL) { return Append(IL); }
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/** Concatenates two strings. */
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NODISCARD friend FORCEINLINE TString operator+(const TString& LHS, const TString& RHS) { return TString(LHS).Append(RHS); }
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/** Concatenates the string with the given character value. */
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NODISCARD friend FORCEINLINE TString operator+(const TString& LHS, ElementType RHS) { return TString(LHS).Append(1, RHS); }
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NODISCARD friend FORCEINLINE TString operator+(const TString& LHS, const ElementType* RHS) { return TString(LHS).Append( RHS); }
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NODISCARD friend FORCEINLINE TString operator+(const TString& LHS, TStringView<ElementType> RHS) { return TString(LHS).Append( RHS); }
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NODISCARD friend FORCEINLINE TString operator+( ElementType LHS, const TString& RHS) { return TString(1, LHS).Append(RHS); }
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NODISCARD friend FORCEINLINE TString operator+( const ElementType* LHS, const TString& RHS) { return TString( LHS).Append(RHS); }
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NODISCARD friend FORCEINLINE TString operator+(TStringView<ElementType> LHS, const TString& RHS) { return TString( LHS).Append(RHS); }
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/** Concatenates two strings. The rvalue maybe modified. */
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NODISCARD friend FORCEINLINE TString operator+(TString&& LHS, TString&& RHS) { LHS.Append(MoveTemp(RHS)); return LHS; }
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/** Concatenates two strings. The rvalue maybe modified. */
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NODISCARD friend FORCEINLINE TString operator+(TString&& LHS, ElementType RHS) { LHS.Append(1, RHS); return LHS; }
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NODISCARD friend FORCEINLINE TString operator+(TString&& LHS, const ElementType* RHS) { LHS.Append( RHS); return LHS; }
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NODISCARD friend FORCEINLINE TString operator+(TString&& LHS, TStringView<ElementType> RHS) { LHS.Append( RHS); return LHS; }
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NODISCARD friend FORCEINLINE TString operator+(TString&& LHS, const TString<ElementType>& RHS) { LHS.Append( RHS); return LHS; }
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NODISCARD friend FORCEINLINE TString operator+( ElementType LHS, TString&& RHS) { RHS.Insert(0, LHS); return RHS; }
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NODISCARD friend FORCEINLINE TString operator+( const ElementType* LHS, TString&& RHS) { RHS.Insert(0, LHS); return RHS; }
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NODISCARD friend FORCEINLINE TString operator+( TStringView<ElementType> LHS, TString&& RHS) { RHS.Insert(0, LHS); return RHS; }
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NODISCARD friend FORCEINLINE TString operator+(const TString<ElementType>& LHS, TString&& RHS) { RHS.Insert(0, LHS); return RHS; }
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/** @return true if the string view starts with the given prefix, false otherwise. */
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NODISCARD FORCEINLINE bool StartsWith(TStringView<ElementType> Prefix) const
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{
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return TStringView<ElementType>(*this).StartsWith(Prefix);
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}
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/** @return true if the string view starts with the given prefix, false otherwise. */
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NODISCARD FORCEINLINE bool StartsWith(ElementType Prefix) const
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{
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return TStringView<ElementType>(*this).StartsWith(Prefix);
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}
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/** @return true if the string view ends with the given suffix, false otherwise. */
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NODISCARD FORCEINLINE bool EndsWith(TStringView<ElementType> Suffix) const
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{
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return TStringView<ElementType>(*this).EndsWith(Suffix);
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}
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/** @return true if the string view ends with the given suffix, false otherwise. */
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NODISCARD FORCEINLINE bool EndsWith(ElementType Suffix) const
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{
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return TStringView<ElementType>(*this).EndsWith(Suffix);
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}
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/** @return true if the string view contains the given substring, false otherwise. */
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NODISCARD FORCEINLINE bool Contains(TStringView<ElementType> View) const
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{
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return TStringView<ElementType>(*this).Contains(View);
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}
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/** @return true if the string view contains the given character, false otherwise. */
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NODISCARD FORCEINLINE bool Contains(ElementType Char) const
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{
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return TStringView<ElementType>(*this).Contains(Char);
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}
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/** @return true if the string view contains character that satisfy the given predicate, false otherwise. */
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template <CPredicate<ElementType> F>
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NODISCARD FORCEINLINE bool Contains(F&& InPredicate) const
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{
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return TStringView<ElementType>(*this).Contains(Forward<F>(InPredicate));
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}
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/** Replace the substring [Index, Index + CountToReplace) with 'Count' copies of the 'InChar'. */
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FORCEINLINE TString& Replace(size_t Index, size_t CountToReplace, size_t Count, ElementType InChar)
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{
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checkf(Index <= Num() && Index + CountToReplace <= Num(), TEXT("Illegal substring range. Please check Index and CountToReplace."));
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return Replace(Begin() + Index, Begin() + Index + CountToReplace, Count, InChar);
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}
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/** Replace the substring ['First', 'Last') with 'Count' copies of the 'InChar'. */
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FORCEINLINE TString& Replace(ConstIterator First, ConstIterator Last, size_t Count, ElementType InChar)
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{
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checkf(IsValidIterator(First) && IsValidIterator(Last) && First <= Last, TEXT("Read access violation. Please check IsValidIterator()."));
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return Replace(First, Last, MakeCountedConstantIterator(InChar, Count), DefaultSentinel);
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}
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/** Replace the substring [Index, Index + CountToReplace) with the contents of the 'View'. */
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FORCEINLINE TString& Replace(size_t Index, size_t CountToReplace, TStringView<ElementType> View)
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{
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checkf(Index <= Num() && Index + CountToReplace <= Num(), TEXT("Illegal substring range. Please check Index and CountToReplace."));
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return Replace(Begin() + Index, Begin() + Index + CountToReplace, View);
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}
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/** Replace the substring ['First', 'Last') with the contents of the 'View'. */
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FORCEINLINE TString& Replace(ConstIterator First, ConstIterator Last, TStringView<ElementType> View)
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{
|
|
checkf(IsValidIterator(First) && IsValidIterator(Last) && First <= Last, TEXT("Read access violation. Please check IsValidIterator()."));
|
|
|
|
return Replace(First, Last, View.Begin(), View.End());
|
|
}
|
|
|
|
/** Replace the substring [Index, Index + CountToReplace) with the contents of the range ['First', 'Last'). */
|
|
template <CInputIterator I, CSentinelFor<I> S> requires (CConstructibleFrom<ElementType, TIteratorReferenceType<I>>)
|
|
FORCEINLINE TString& Replace(size_t Index, size_t CountToReplace, I InString, S Sentinel)
|
|
{
|
|
checkf(Index <= Num() && Index + CountToReplace <= Num(), TEXT("Illegal substring range. Please check Index and CountToReplace."));
|
|
|
|
return Replace(Begin() + Index, Begin() + Index + CountToReplace, MoveTemp(InString), MoveTemp(Sentinel));
|
|
}
|
|
|
|
/** Replace the substring ['First', 'Last') with the contents of the range ['InString', 'Sentinel'). */
|
|
template <CInputIterator I, CSentinelFor<I> S> requires (CConstructibleFrom<ElementType, TIteratorReferenceType<I>>)
|
|
TString& Replace(ConstIterator First, ConstIterator Last, I InString, S Sentinel)
|
|
{
|
|
checkf(IsValidIterator(First) && IsValidIterator(Last) && First <= Last, TEXT("Read access violation. Please check IsValidIterator()."));
|
|
|
|
if constexpr (CForwardIterator<I>)
|
|
{
|
|
if (CSizedSentinelFor<S, I>) { checkf(First <= Last, TEXT("Illegal range iterator. Please check First <= Last.")); }
|
|
|
|
const size_t InsertIndex = First - Begin();
|
|
|
|
const size_t RemoveCount = Iteration::Distance(First, Last);
|
|
const size_t InsertCount = Iteration::Distance(InString, Sentinel);
|
|
|
|
const size_t NumToReset = Num() - RemoveCount + InsertCount;
|
|
|
|
if (InsertCount < RemoveCount)
|
|
{
|
|
for (size_t Index = InsertIndex; Index != InsertIndex + InsertCount; ++Index)
|
|
{
|
|
NativeData[Index] = ElementType(*InString++);
|
|
}
|
|
|
|
for (size_t Index = InsertIndex + InsertCount; Index != NumToReset; ++Index)
|
|
{
|
|
NativeData[Index] = NativeData[Index + (RemoveCount - InsertCount)];
|
|
}
|
|
|
|
NativeData.SetNum(NumToReset + 1);
|
|
}
|
|
else
|
|
{
|
|
NativeData.SetNum(NumToReset + 1);
|
|
|
|
for (size_t Index = Num(); Index != InsertIndex + InsertCount - 1; --Index)
|
|
{
|
|
NativeData[Index - 1] = NativeData[Index + (RemoveCount - InsertCount) - 1];
|
|
}
|
|
|
|
for (size_t Index = InsertIndex; Index != InsertIndex + InsertCount; ++Index)
|
|
{
|
|
NativeData[Index] = ElementType(*InString++);
|
|
}
|
|
}
|
|
|
|
NativeData.Back() = LITERAL(ElementType, '\0');
|
|
}
|
|
else
|
|
{
|
|
TString Temp(MoveTemp(First), MoveTemp(Last));
|
|
return Replace(First, Last, Temp.Begin(), Temp.End());
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
/** Replace the substring [Index, Index + CountToReplace) with the contents of the initializer list. */
|
|
FORCEINLINE TString& Replace(size_t Index, size_t CountToReplace, initializer_list<ElementType> IL)
|
|
{
|
|
checkf(Index <= Num() && Index + CountToReplace <= Num(), TEXT("Illegal substring range. Please check Index and CountToReplace."));
|
|
|
|
return Replace(Begin() + Index, Begin() + Index + CountToReplace, IL);
|
|
}
|
|
|
|
/** Replace the substring ['First', 'Last') with the contents of the initializer list. */
|
|
FORCEINLINE TString& Replace(ConstIterator First, ConstIterator Last, initializer_list<ElementType> IL)
|
|
{
|
|
checkf(IsValidIterator(First) && IsValidIterator(Last) && First <= Last, TEXT("Read access violation. Please check IsValidIterator()."));
|
|
|
|
return Replace(First, Last, Iteration::Begin(IL), Iteration::End(IL));
|
|
}
|
|
|
|
/** Obtains a string that is a view over the 'Count' characters of this string view starting at 'Offset'. */
|
|
FORCEINLINE TString Substr(size_t Offset = 0, size_t Count = DynamicExtent) const
|
|
{
|
|
checkf(Offset <= Num() && Offset + Count <= Num(), TEXT("Illegal substring range. Please check Offset and Count."));
|
|
|
|
return TStringView<ElementType>(*this).Substr(Offset, Count);
|
|
}
|
|
|
|
/** Copies the characters of this string to the destination buffer without null-termination. */
|
|
FORCEINLINE size_t Copy(ElementType* Dest, size_t Count = DynamicExtent, size_t Offset = 0) const
|
|
{
|
|
checkf(Dest != nullptr, TEXT("Illegal destination buffer. Please check the pointer."));
|
|
|
|
checkf(Offset <= Num() && (Count == DynamicExtent || Offset + Count <= Num()), TEXT("Illegal subview range. Please check Offset and Count."));
|
|
|
|
return TStringView<ElementType>(*this).Copy(Dest, Count, Offset);
|
|
}
|
|
|
|
FORCEINLINE size_t Copy(nullptr_t, size_t = DynamicExtent, size_t = 0) const = delete;
|
|
|
|
/** @return The index of the first occurrence of the given substring, or INDEX_NONE if not found. */
|
|
NODISCARD size_t Find(TStringView<ElementType> View, size_t Index = 0) const
|
|
{
|
|
checkf(Index < Num(), TEXT("Illegal index. Please check Index."));
|
|
|
|
return TStringView<ElementType>(*this).Find(View, Index);
|
|
}
|
|
|
|
/** @return The index of the first occurrence of the given character, or INDEX_NONE if not found. */
|
|
NODISCARD size_t Find(ElementType Char, size_t Index = 0) const
|
|
{
|
|
checkf(Index < Num(), TEXT("Illegal index. Please check Index."));
|
|
|
|
return TStringView<ElementType>(*this).Find(Char, Index);
|
|
}
|
|
|
|
/** @return The index of the first occurrence of the character that satisfy the given predicate, or INDEX_NONE if not found. */
|
|
template <CPredicate<ElementType> F>
|
|
NODISCARD size_t Find(F&& InPredicate, size_t Index = 0) const
|
|
{
|
|
checkf(Index < Num(), TEXT("Illegal index. Please check Index."));
|
|
|
|
return TStringView<ElementType>(*this).Find(Forward<F>(InPredicate), Index);
|
|
}
|
|
|
|
/** @return The index of the last occurrence of the given substring, or INDEX_NONE if not found. */
|
|
NODISCARD size_t RFind(TStringView<ElementType> View, size_t Index = INDEX_NONE) const
|
|
{
|
|
checkf(Index == INDEX_NONE || Index < Num(), TEXT("Illegal index. Please check Index."));
|
|
|
|
return TStringView<ElementType>(*this).RFind(View, Index);
|
|
}
|
|
|
|
/** @return The index of the last occurrence of the given character, or INDEX_NONE if not found. */
|
|
NODISCARD size_t RFind(ElementType Char, size_t Index = INDEX_NONE) const
|
|
{
|
|
checkf(Index == INDEX_NONE || Index < Num(), TEXT("Illegal index. Please check Index."));
|
|
|
|
return TStringView<ElementType>(*this).RFind(Char, Index);
|
|
}
|
|
|
|
/** @return The index of the last occurrence of the character that satisfy the given predicate, or INDEX_NONE if not found. */
|
|
template <CPredicate<ElementType> F>
|
|
NODISCARD size_t RFind(F&& InPredicate, size_t Index = INDEX_NONE) const
|
|
{
|
|
checkf(Index == INDEX_NONE || Index < Num(), TEXT("Illegal index. Please check Index."));
|
|
|
|
return TStringView<ElementType>(*this).RFind(Forward<F>(InPredicate), Index);
|
|
}
|
|
|
|
/** @return The index of the first occurrence of the character contained in the given view, or INDEX_NONE if not found. */
|
|
NODISCARD FORCEINLINE size_t FindFirstOf(TStringView<ElementType> View, size_t Index = 0) const
|
|
{
|
|
checkf(Index < Num(), TEXT("Illegal index. Please check Index."));
|
|
|
|
return TStringView<ElementType>(*this).FindFirstOf(View, Index);
|
|
}
|
|
|
|
/** @return The index of the first occurrence of the given character, or INDEX_NONE if not found. */
|
|
NODISCARD FORCEINLINE size_t FindFirstOf(ElementType Char, size_t Index = 0) const
|
|
{
|
|
checkf(Index < Num(), TEXT("Illegal index. Please check Index."));
|
|
|
|
return TStringView<ElementType>(*this).FindFirstOf(Char, Index);
|
|
}
|
|
|
|
/** @return The index of the last occurrence of the character contained in the given view, or INDEX_NONE if not found. */
|
|
NODISCARD FORCEINLINE size_t FindLastOf(TStringView<ElementType> View, size_t Index = INDEX_NONE) const
|
|
{
|
|
checkf(Index == INDEX_NONE || Index < Num(), TEXT("Illegal index. Please check Index."));
|
|
|
|
return TStringView<ElementType>(*this).FindLastOf(View, Index);
|
|
}
|
|
|
|
/** @return The index of the last occurrence of the given character, or INDEX_NONE if not found. */
|
|
NODISCARD FORCEINLINE size_t FindLastOf(ElementType Char, size_t Index = INDEX_NONE) const
|
|
{
|
|
checkf(Index == INDEX_NONE || Index < Num(), TEXT("Illegal index. Please check Index."));
|
|
|
|
return TStringView<ElementType>(*this).FindLastOf(Char, Index);
|
|
}
|
|
|
|
/** @return The index of the first absence of the character contained in the given view, or INDEX_NONE if not found. */
|
|
NODISCARD FORCEINLINE size_t FindFirstNotOf(TStringView<ElementType> View, size_t Index = 0) const
|
|
{
|
|
checkf(Index < Num(), TEXT("Illegal index. Please check Index."));
|
|
|
|
return TStringView<ElementType>(*this).FindFirstNotOf(View, Index);
|
|
}
|
|
|
|
/** @return The index of the first absence of the given character, or INDEX_NONE if not found. */
|
|
NODISCARD FORCEINLINE size_t FindFirstNotOf(ElementType Char, size_t Index = 0) const
|
|
{
|
|
checkf(Index < Num(), TEXT("Illegal index. Please check Index."));
|
|
|
|
return TStringView<ElementType>(*this).FindFirstNotOf(Char, Index);
|
|
}
|
|
|
|
/** @return The index of the last absence of the character contained in the given view, or INDEX_NONE if not found. */
|
|
NODISCARD FORCEINLINE size_t FindLastNotOf(TStringView<ElementType> View, size_t Index = INDEX_NONE) const
|
|
{
|
|
checkf(Index == INDEX_NONE || Index < Num(), TEXT("Illegal index. Please check Index."));
|
|
|
|
return TStringView<ElementType>(*this).FindLastNotOf(View, Index);
|
|
}
|
|
|
|
/** @return The index of the last absence of the given character, or INDEX_NONE if not found. */
|
|
NODISCARD FORCEINLINE size_t FindLastNotOf(ElementType Char, size_t Index = INDEX_NONE) const
|
|
{
|
|
checkf(Index == INDEX_NONE || Index < Num(), TEXT("Illegal index. Please check Index."));
|
|
|
|
return TStringView<ElementType>(*this).FindLastNotOf(Char, Index);
|
|
}
|
|
|
|
/** Try to decode the given character using the U-encoded to a string using the T-encoded. */
|
|
template <CCharType U>
|
|
bool DecodeFrom(U Char, bool bAllowShrinking = true)
|
|
{
|
|
return DecodeFrom(TStringView(&Char, 1), bAllowShrinking);
|
|
}
|
|
|
|
/** Try to decode the given string using the U-encoded to a string using the T-encoded. */
|
|
template <CCharType U, CAllocator<U> A>
|
|
bool DecodeFrom(const TString<U, A>& String, bool bAllowShrinking = true)
|
|
{
|
|
return DecodeFrom(TStringView(String), bAllowShrinking);
|
|
}
|
|
|
|
/** Try to decode the given string view using the U-encoded to a string using the T-encoded. */
|
|
template <CCharType U>
|
|
bool DecodeFrom(TStringView<U> View, bool bAllowShrinking = true)
|
|
{
|
|
NativeData.Reset(false);
|
|
|
|
auto AppendToResult = [this]<typename W>(auto& Self, TStringView<W> View) -> bool
|
|
{
|
|
// char -> char
|
|
// wchar -> wchar
|
|
if constexpr (CSameAs<W, char> && CSameAs<T, char> || CSameAs<W, wchar> && CSameAs<T, wchar>)
|
|
{
|
|
// Unable to determine whether the user-preferred locale encoded character is valid or not, it is assumed to be valid.
|
|
NativeData.Insert(NativeData.End(), View.Begin(), View.End());
|
|
|
|
return true;
|
|
}
|
|
|
|
// char -> wchar
|
|
// char -> wchar -> ...
|
|
else if constexpr (CSameAs<W, char>)
|
|
{
|
|
NAMESPACE_STD::locale Loc = NAMESPACE_STD::locale("");
|
|
|
|
check((NAMESPACE_STD::has_facet<NAMESPACE_STD::codecvt<wchar_t, char, NAMESPACE_STD::mbstate_t>>(Loc)));
|
|
|
|
const auto& Facet = NAMESPACE_STD::use_facet<NAMESPACE_STD::codecvt<wchar, char, NAMESPACE_STD::mbstate_t>>(Loc);
|
|
|
|
NAMESPACE_STD::mbstate_t State = NAMESPACE_STD::mbstate_t();
|
|
|
|
const char* BeginFrom = View.GetData().Get();
|
|
const char* EndFrom = BeginFrom + View.Num();
|
|
|
|
wchar Buffer[FWChar::MaxCodeUnitLength];
|
|
|
|
const char* NextFrom;
|
|
wchar* NextTo;
|
|
|
|
do
|
|
{
|
|
const auto Result = Facet.in(State, BeginFrom, EndFrom, NextFrom, Iteration::Begin(Buffer), Iteration::End(Buffer), NextTo);
|
|
|
|
if (BeginFrom == NextFrom) return false;
|
|
|
|
if (Result == NAMESPACE_STD::codecvt_base::error) return false;
|
|
if (Result == NAMESPACE_STD::codecvt_base::noconv) return false;
|
|
|
|
// char -> wchar
|
|
if constexpr (CSameAs<T, wchar>)
|
|
{
|
|
for (wchar* Iter = Buffer; Iter != NextTo; ++Iter)
|
|
{
|
|
NativeData.PushBack(*Iter);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (!Self(Self, TStringView(Buffer, NextTo))) return false;
|
|
}
|
|
|
|
BeginFrom = NextFrom;
|
|
}
|
|
while (BeginFrom != EndFrom);
|
|
|
|
return true;
|
|
}
|
|
|
|
// wchar -> char
|
|
else if constexpr (CSameAs<W, wchar> && CSameAs<T, char>)
|
|
{
|
|
NAMESPACE_STD::locale Loc = NAMESPACE_STD::locale("");
|
|
|
|
check((NAMESPACE_STD::has_facet<NAMESPACE_STD::codecvt<wchar_t, char, NAMESPACE_STD::mbstate_t>>(Loc)));
|
|
|
|
const auto& Facet = NAMESPACE_STD::use_facet<NAMESPACE_STD::codecvt<wchar, char, NAMESPACE_STD::mbstate_t>>(Loc);
|
|
|
|
NAMESPACE_STD::mbstate_t State = NAMESPACE_STD::mbstate_t();
|
|
|
|
const wchar* BeginFrom = View.GetData().Get();
|
|
const wchar* EndFrom = BeginFrom + View.Num();
|
|
|
|
char Buffer[FChar::MaxCodeUnitLength];
|
|
|
|
const wchar* NextFrom;
|
|
char* NextTo;
|
|
|
|
do
|
|
{
|
|
const auto Result = Facet.out(State, BeginFrom, EndFrom, NextFrom, Iteration::Begin(Buffer), Iteration::End(Buffer), NextTo);
|
|
|
|
if (BeginFrom == NextFrom) return false;
|
|
|
|
if (Result == NAMESPACE_STD::codecvt_base::error) return false;
|
|
if (Result == NAMESPACE_STD::codecvt_base::noconv) return false;
|
|
|
|
for (char* Iter = Buffer; Iter != NextTo; ++Iter)
|
|
{
|
|
NativeData.PushBack(*Iter);
|
|
}
|
|
|
|
BeginFrom = NextFrom;
|
|
}
|
|
while (BeginFrom != EndFrom);
|
|
|
|
return true;
|
|
}
|
|
|
|
// u8char -> unicodechar -> ...
|
|
else if constexpr (CSameAs<W, u8char>)
|
|
{
|
|
auto Iter = View.Begin();
|
|
|
|
while (Iter != View.End())
|
|
{
|
|
unicodechar Temp = static_cast<unicodechar>(*Iter++);
|
|
|
|
unicodechar Unicode;
|
|
|
|
if ((Temp & 0b10000000) == 0b00000000) // 0XXXXXXX
|
|
{
|
|
Unicode = Temp;
|
|
}
|
|
|
|
else if ((Temp & 0b11100000) == 0b11000000) // 110XXXXX 10XXXXXX
|
|
{
|
|
if (Iter + 1 > View.End()) return false;
|
|
|
|
Unicode = (Temp & 0b00011111) << 6;
|
|
|
|
Temp = static_cast<unicodechar>(*Iter++); if ((Temp & 0b11000000) != 0b10000000) return false; else Unicode |= Temp & 0b00111111;
|
|
}
|
|
|
|
else if ((Temp & 0b11110000) == 0b11100000) // 1110XXXX 10XXXXXX 10XXXXXX
|
|
{
|
|
if (Iter + 2 > View.End()) return false;
|
|
|
|
Unicode = (Temp & 0b00001111) << 12;
|
|
|
|
Temp = static_cast<unicodechar>(*Iter++); if ((Temp & 0b11000000) != 0b10000000) return false; else Unicode |= (Temp & 0b00111111) << 6;
|
|
Temp = static_cast<unicodechar>(*Iter++); if ((Temp & 0b11000000) != 0b10000000) return false; else Unicode |= Temp & 0b00111111;
|
|
}
|
|
|
|
else if ((Temp & 0b11111000) == 0b11110000) // 11110XXX 10XXXXXX 10XXXXXX 10XXXXXX
|
|
{
|
|
if (Iter + 3 > View.End()) return false;
|
|
|
|
Unicode = (Temp & 0b00000111) << 18;
|
|
|
|
Temp = static_cast<unicodechar>(*Iter++); if ((Temp & 0b11000000) != 0b10000000) return false; else Unicode |= (Temp & 0b00111111) << 12;
|
|
Temp = static_cast<unicodechar>(*Iter++); if ((Temp & 0b11000000) != 0b10000000) return false; else Unicode |= (Temp & 0b00111111) << 6;
|
|
Temp = static_cast<unicodechar>(*Iter++); if ((Temp & 0b11000000) != 0b10000000) return false; else Unicode |= Temp & 0b00111111;
|
|
}
|
|
|
|
else return false;
|
|
|
|
if (!Self(Self, TStringView(&Unicode, 1))) return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// u16char -> unicodechar -> ...
|
|
// wchar -> unicodechar -> ... for Windows
|
|
else if constexpr (CSameAs<W, u16char> || PLATFORM_WINDOWS && CSameAs<W, wchar>)
|
|
{
|
|
auto Iter = View.Begin();
|
|
|
|
while (Iter != View.End())
|
|
{
|
|
unicodechar Temp = static_cast<unicodechar>(*Iter++);
|
|
|
|
unicodechar Unicode;
|
|
|
|
// High Surrogate <UD800>..<UDBFF>;
|
|
// Low Surrogate <UDC00>..<UDFFF>;
|
|
|
|
if (Temp >= 0xD800 && Temp <= 0xDBFF)
|
|
{
|
|
if (Iter == View.End()) return false;
|
|
|
|
Unicode = (Temp & 0b00000011'11111111) << 10;
|
|
|
|
Temp = static_cast<unicodechar>(*Iter++);
|
|
|
|
if (Temp >= 0xDC00 && Temp <= 0xDFFF)
|
|
{
|
|
Unicode |= Temp & 0b00000011'11111111;
|
|
|
|
Unicode += 0x10000;
|
|
}
|
|
else return false;
|
|
}
|
|
else Unicode = Temp;
|
|
|
|
if (!Self(Self, TStringView(&Unicode, 1))) return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// wchar -> unicodechar -> ... for Linux
|
|
else if constexpr (PLATFORM_LINUX && CSameAs<W, wchar>)
|
|
{
|
|
return Self(Self, TStringView(reinterpret_cast<const u32char*>(View.GetData().Get()), View.Num()));
|
|
}
|
|
|
|
// unicodechar u32char -> u8char
|
|
else if constexpr (CSameAs<W, unicodechar> && CSameAs<T, u8char>)
|
|
{
|
|
for (unicodechar Char : View)
|
|
{
|
|
if (!FUnicodeChar::IsValid(Char)) return false;
|
|
|
|
if (!(Char & ~0b0000000'00000000'00000000'01111111)) // 0XXXXXXX
|
|
{
|
|
NativeData.PushBack(static_cast<u8char>(Char));
|
|
}
|
|
else if (!(Char & ~0b0000000'00000000'00000111'11111111)) // 110XXXXX 10XXXXXX
|
|
{
|
|
NativeData.PushBack(static_cast<u8char>(0b11000000 | (Char >> 6 & 0b00011111)));
|
|
NativeData.PushBack(static_cast<u8char>(0b10000000 | (Char & 0b00111111)));
|
|
}
|
|
else if (!(Char & ~0b0000000'00000000'11111111'11111111)) // 1110XXXX 10XXXXXX 10XXXXXX
|
|
{
|
|
NativeData.PushBack(static_cast<u8char>(0b11100000 | (Char >> 12 & 0b00001111)));
|
|
NativeData.PushBack(static_cast<u8char>(0b10000000 | (Char >> 6 & 0b00111111)));
|
|
NativeData.PushBack(static_cast<u8char>(0b10000000 | (Char & 0b00111111)));
|
|
}
|
|
else if (!(Char & ~0b0000000'11111111'11111111'11111111)) // 11110XXX 10XXXXXX 10XXXXXX 10XXXXXX
|
|
{
|
|
NativeData.PushBack(static_cast<u8char>(0b11110000 | (Char >> 18 & 0b00000111)));
|
|
NativeData.PushBack(static_cast<u8char>(0b10000000 | (Char >> 12 & 0b00111111)));
|
|
NativeData.PushBack(static_cast<u8char>(0b10000000 | (Char >> 6 & 0b00111111)));
|
|
NativeData.PushBack(static_cast<u8char>(0b10000000 | (Char & 0b00111111)));
|
|
}
|
|
else check_no_entry();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// unicodechar u32char -> u16char
|
|
// unicodechar u32char -> wchar for Windows
|
|
// unicodechar u32char -> wchar -> char for Windows
|
|
else if constexpr (CSameAs<W, unicodechar> && (CSameAs<T, u16char> || PLATFORM_WINDOWS && (CSameAs<T, char> || CSameAs<T, wchar>)))
|
|
{
|
|
for (unicodechar Char : View)
|
|
{
|
|
if (!FUnicodeChar::IsValid(Char)) return false;
|
|
|
|
if (!(Char & ~0b0000000'00000000'11111111'11111111)) // XXXXXXXX'XXXXXXXX
|
|
{
|
|
if constexpr (PLATFORM_WINDOWS && (CSameAs<T, char> || CSameAs<T, wchar>))
|
|
{
|
|
wchar WChar = static_cast<wchar>(Char);
|
|
|
|
if (!Self(Self, TStringView(&WChar, 1))) return false;
|
|
}
|
|
else NativeData.PushBack(static_cast<u16char>(Char));
|
|
}
|
|
else if (!(Char & ~0b0000000'00011111'11111111'11111111)) // 110110XX'XXXXXXXX 110111XX'XXXXXXXX
|
|
{
|
|
Char -= 0x10000;
|
|
|
|
u16char Buffer[] = {
|
|
static_cast<u16char>(0b11011000'00000000 | (Char >> 10 & 0b00000011'11111111)),
|
|
static_cast<u16char>(0b11011100'00000000 | (Char & 0b00000011'11111111))
|
|
};
|
|
|
|
if constexpr (PLATFORM_WINDOWS && (CSameAs<T, char> || CSameAs<T, wchar>))
|
|
{
|
|
if (!Self(Self, TStringView(reinterpret_cast<const wchar*>(Buffer), 2))) return false;
|
|
}
|
|
else
|
|
{
|
|
NativeData.PushBack(Buffer[0]);
|
|
NativeData.PushBack(Buffer[1]);
|
|
}
|
|
}
|
|
else check_no_entry();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// unicodechar u32char -> unicodechar u32char
|
|
// unicodechar u32char -> wchar for Linux
|
|
// unicodechar u32char -> wchar -> char for Linux
|
|
else if constexpr (CSameAs<W, unicodechar> && (CSameAs<T, unicodechar> || PLATFORM_LINUX && (CSameAs<T, char> || CSameAs<T, wchar>)))
|
|
{
|
|
for (unicodechar Char : View)
|
|
{
|
|
if (!FUnicodeChar::IsValid(Char)) return false;
|
|
}
|
|
|
|
if constexpr (PLATFORM_LINUX && (CSameAs<T, char> || CSameAs<T, wchar>))
|
|
{
|
|
return Self(Self, TStringView(reinterpret_cast<const wchar*>(View.GetData().Get()), View.Num()));
|
|
}
|
|
else NativeData.Insert(NativeData.End(), View.Begin(), View.End());
|
|
|
|
return true;
|
|
}
|
|
|
|
else static_assert(sizeof(W) == -1, "Unsupported character type");
|
|
|
|
return false;
|
|
};
|
|
|
|
bool bIsValid = AppendToResult(AppendToResult, View);
|
|
|
|
if (!bIsValid) NativeData.Reset(false);
|
|
|
|
NativeData.PushBack(LITERAL(T, '\0'));
|
|
|
|
if (bAllowShrinking) NativeData.Shrink();
|
|
|
|
return bIsValid;
|
|
}
|
|
|
|
/** Try to encode a T-encoded string to a U-encoded string. */
|
|
template <CCharType U, CAllocator<U> A = TDefaultStringAllocator<T>>
|
|
NODISCARD TOptional<TString<U, A>> EncodeTo() const
|
|
{
|
|
TString<U, A> Result;
|
|
|
|
bool bIsValid = Result.DecodeFrom(*this);
|
|
|
|
if (!bIsValid) return Invalid;
|
|
|
|
return Result;
|
|
}
|
|
|
|
/** @return The non-modifiable standard C character string version of the string. */
|
|
NODISCARD FORCEINLINE const ElementType* ToCString() const { return NativeData.GetData().Get(); }
|
|
|
|
/** @return The target-encoded string from the T-encoded string. */
|
|
NODISCARD FORCEINLINE auto ToString() const { return EncodeTo<char>(); }
|
|
NODISCARD FORCEINLINE auto ToWString() const { return EncodeTo<wchar>(); }
|
|
NODISCARD FORCEINLINE auto ToU8String() const { return EncodeTo<u8char>(); }
|
|
NODISCARD FORCEINLINE auto ToU16String() const { return EncodeTo<u16char>(); }
|
|
NODISCARD FORCEINLINE auto ToU32String() const { return EncodeTo<u32char>(); }
|
|
NODISCARD FORCEINLINE auto ToUnicodeString() const { return EncodeTo<unicodechar>(); }
|
|
|
|
/** Resizes the string to contain 'Count' characters. Additional null characters are appended. */
|
|
FORCEINLINE void SetNum(size_t Count, bool bAllowShrinking = true) { SetNum(Count, LITERAL(ElementType, '\0'), bAllowShrinking); }
|
|
|
|
/** Resizes the string to contain 'Count' characters. Additional copies of 'InValue' are appended. */
|
|
FORCEINLINE void SetNum(size_t Count, ElementType InValue, bool bAllowShrinking = true) { NativeData.SetNum(Count + 1, InValue, bAllowShrinking); NativeData.Back() = LITERAL(ElementType, '\0'); }
|
|
|
|
/** Increase the max capacity of the string to a value that's greater or equal to 'Count'. */
|
|
FORCEINLINE void Reserve(size_t Count) { NativeData.Reserve(Count + 1); }
|
|
|
|
/** Requests the removal of unused capacity. */
|
|
FORCEINLINE void Shrink() { NativeData.Shrink(); }
|
|
|
|
/** @return The pointer to the underlying character storage. */
|
|
NODISCARD FORCEINLINE TObserverPtr< ElementType[]> GetData() { return NativeData.GetData(); }
|
|
NODISCARD FORCEINLINE TObserverPtr<const ElementType[]> GetData() const { return NativeData.GetData(); }
|
|
|
|
/** @return The iterator to the first or end character. */
|
|
NODISCARD FORCEINLINE Iterator Begin() { return NativeData.Begin(); }
|
|
NODISCARD FORCEINLINE ConstIterator Begin() const { return NativeData.Begin(); }
|
|
NODISCARD FORCEINLINE Iterator End() { return --NativeData.End(); }
|
|
NODISCARD FORCEINLINE ConstIterator End() const { return --NativeData.End(); }
|
|
|
|
/** @return The reverse iterator to the first or end character. */
|
|
NODISCARD FORCEINLINE ReverseIterator RBegin() { return ++NativeData.RBegin(); }
|
|
NODISCARD FORCEINLINE ConstReverseIterator RBegin() const { return ++NativeData.RBegin(); }
|
|
NODISCARD FORCEINLINE ReverseIterator REnd() { return NativeData.REnd(); }
|
|
NODISCARD FORCEINLINE ConstReverseIterator REnd() const { return NativeData.REnd(); }
|
|
|
|
/** @return The number of characters in the string. */
|
|
NODISCARD FORCEINLINE size_t Num() const { return NativeData.Num() - 1; }
|
|
|
|
/** @return The number of characters that can be held in currently allocated storage. */
|
|
NODISCARD FORCEINLINE size_t Max() const { return NativeData.Max() - 1; }
|
|
|
|
/** @return true if the string is empty, false otherwise. */
|
|
NODISCARD FORCEINLINE bool IsEmpty() const { return Num() == 0; }
|
|
|
|
/** @return true if the iterator is valid, false otherwise. */
|
|
NODISCARD FORCEINLINE bool IsValidIterator(ConstIterator Iter) const { return Begin() <= Iter && Iter <= End(); }
|
|
|
|
/** @return The reference to the requested character. */
|
|
NODISCARD FORCEINLINE ElementType& operator[](size_t Index) { checkf(Index < Num(), TEXT("Read access violation. Please check IsValidIterator().")); return NativeData[Index]; }
|
|
NODISCARD FORCEINLINE const ElementType& operator[](size_t Index) const { checkf(Index < Num(), TEXT("Read access violation. Please check IsValidIterator().")); return NativeData[Index]; }
|
|
|
|
/** @return The reference to the first or last character. */
|
|
NODISCARD FORCEINLINE ElementType& Front() { return *Begin(); }
|
|
NODISCARD FORCEINLINE const ElementType& Front() const { return *Begin(); }
|
|
NODISCARD FORCEINLINE ElementType& Back() { return *(End() - 1); }
|
|
NODISCARD FORCEINLINE const ElementType& Back() const { return *(End() - 1); }
|
|
|
|
/** Erases all characters from the string. After this call, Num() returns zero. */
|
|
FORCEINLINE void Reset(bool bAllowShrinking = true)
|
|
{
|
|
NativeData.Reset(bAllowShrinking);
|
|
NativeData.PushBack(LITERAL(ElementType, '\0'));
|
|
}
|
|
|
|
/** Overloads the GetTypeHash algorithm for TString. */
|
|
NODISCARD friend FORCEINLINE size_t GetTypeHash(const TString& A) { return GetTypeHash(A.NativeData); }
|
|
|
|
/** Overloads the Swap algorithm for TString. */
|
|
friend FORCEINLINE void Swap(TString& A, TString& B) { Swap(A.NativeData, B.NativeData); }
|
|
|
|
ENABLE_RANGE_BASED_FOR_LOOP_SUPPORT
|
|
|
|
private:
|
|
|
|
TArray<T, Allocator> NativeData;
|
|
|
|
};
|
|
|
|
template<typename T>
|
|
TString(size_t, T) -> TString<T>;
|
|
|
|
template<typename T>
|
|
TString(const T*) -> TString<T>;
|
|
|
|
template<typename T>
|
|
TString(TStringView<T>) -> TString<T>;
|
|
|
|
template<typename I, typename S>
|
|
TString(I, S) -> TString<TIteratorElementType<I>>;
|
|
|
|
template <typename T>
|
|
TString(initializer_list<T>) -> TString<T>;
|
|
|
|
using FString = TString<char>;
|
|
using FWString = TString<wchar>;
|
|
using FU8String = TString<u8char>;
|
|
using FU16String = TString<u16char>;
|
|
using FU32String = TString<u32char>;
|
|
using FUnicodeString = TString<unicodechar>;
|
|
|
|
template <CCharType T> template <typename Allocator> constexpr TStringView<T>::TStringView(const TString<ElementType, Allocator>& InString)
|
|
: TStringView(InString.GetData().Get(), InString.Num()) { }
|
|
|
|
NAMESPACE_MODULE_END(Utility)
|
|
NAMESPACE_MODULE_END(Redcraft)
|
|
NAMESPACE_REDCRAFT_END
|