UDocumentation UE5.7 10.02.2026 (Source)
API documentation for Unreal Engine 5.7
Find.h
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1// Copyright Epic Games, Inc. All Rights Reserved.
2
3#pragma once
4
5#include "Containers/ArrayView.h"
6#include "Containers/ContainersFwd.h"
7#include "Containers/StringFwd.h"
8#include "CoreTypes.h"
9#include "Misc/CString.h"
10
11namespace UE::String
12{
13
22CORE_API int32 FindFirst(FUtf8StringView View, FUtf8StringView Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive);
23CORE_API int32 FindFirst(FWideStringView View, FWideStringView Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive);
24
33CORE_API int32 FindLast(FUtf8StringView View, FUtf8StringView Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive);
34CORE_API int32 FindLast(FWideStringView View, FWideStringView Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive);
35
45CORE_API int32 FindFirstOfAny(FAnsiStringView View, TConstArrayView<FAnsiStringView> Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive, int32* OutMatchIndex = nullptr);
46CORE_API int32 FindFirstOfAny(FUtf8StringView View, TConstArrayView<FUtf8StringView> Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive, int32* OutMatchIndex = nullptr);
47CORE_API int32 FindFirstOfAny(FWideStringView View, TConstArrayView<FWideStringView> Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive, int32* OutMatchIndex = nullptr);
48
58CORE_API int32 FindLastOfAny(FAnsiStringView View, TConstArrayView<FAnsiStringView> Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive, int32* OutMatchIndex = nullptr);
59CORE_API int32 FindLastOfAny(FUtf8StringView View, TConstArrayView<FUtf8StringView> Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive, int32* OutMatchIndex = nullptr);
60CORE_API int32 FindLastOfAny(FWideStringView View, TConstArrayView<FWideStringView> Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive, int32* OutMatchIndex = nullptr);
61
70CORE_API int32 FindFirstChar(FUtf8StringView View, UTF8CHAR Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive);
71CORE_API int32 FindFirstChar(FWideStringView View, WIDECHAR Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive);
72
81CORE_API int32 FindLastChar(FUtf8StringView View, UTF8CHAR Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive);
82CORE_API int32 FindLastChar(FWideStringView View, WIDECHAR Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive);
83
93CORE_API int32 FindFirstOfAnyChar(FUtf8StringView View, std::initializer_list<UTF8CHAR> Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive, int32* OutMatchIndex = nullptr);
94CORE_API int32 FindFirstOfAnyChar(FUtf8StringView View, TConstArrayView<ANSICHAR> Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive, int32* OutMatchIndex = nullptr);
95CORE_API int32 FindFirstOfAnyChar(FUtf8StringView View, TConstArrayView<UTF8CHAR> Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive, int32* OutMatchIndex = nullptr);
96CORE_API int32 FindFirstOfAnyChar(FWideStringView View, TConstArrayView<WIDECHAR> Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive, int32* OutMatchIndex = nullptr);
97
107CORE_API int32 FindLastOfAnyChar(FUtf8StringView View, std::initializer_list<UTF8CHAR> Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive, int32* OutMatchIndex = nullptr);
108CORE_API int32 FindLastOfAnyChar(FUtf8StringView View, TConstArrayView<ANSICHAR> Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive, int32* OutMatchIndex = nullptr);
109CORE_API int32 FindLastOfAnyChar(FUtf8StringView View, TConstArrayView<UTF8CHAR> Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive, int32* OutMatchIndex = nullptr);
110CORE_API int32 FindLastOfAnyChar(FWideStringView View, TConstArrayView<WIDECHAR> Search, ESearchCase::Type SearchCase = ESearchCase::CaseSensitive, int32* OutMatchIndex = nullptr);
111
112} // UE::String
WIDECHAR
FPlatformTypes::WIDECHAR WIDECHAR
A wide character. Normally a signed type.
Definition Platform.h:1133
int32
FPlatformTypes::int32 int32
A 32-bit signed integer.
Definition Platform.h:1125
UTF8CHAR
FPlatformTypes::UTF8CHAR UTF8CHAR
An 8-bit character containing a UTF8 (Unicode, 8-bit, variable-width) code unit.
Definition Platform.h:1137
StaticCastSharedRef
UE_FORCEINLINE_HINT TSharedRef< CastToType, Mode > StaticCastSharedRef(TSharedRef< CastFromType, Mode > const &InSharedRef)
Definition SharedPointer.h:127
ESearchCase::Type
Type
Definition CString.h:21
ESearchCase::CaseSensitive
@ CaseSensitive
Definition CString.h:23
UE::String
Definition String.cpp.inl:714
UE::String::FindLast
int32 FindLast(FUtf8StringView View, FUtf8StringView Search, ESearchCase::Type SearchCase)
Definition Find.cpp:405
UE::String::FindLastOfAnyChar
int32 FindLastOfAnyChar(FUtf8StringView View, std::initializer_list< UTF8CHAR > Search, ESearchCase::Type SearchCase, int32 *OutMatchIndex)
Definition Find.cpp:485
UE::String::FindLastChar
int32 FindLastChar(FUtf8StringView View, UTF8CHAR Search, ESearchCase::Type SearchCase)
Definition Find.cpp:455
UE::String::FindFirst
int32 FindFirst(FUtf8StringView View, FUtf8StringView Search, ESearchCase::Type SearchCase)
Definition Find.cpp:395
UE::String::FindFirstChar
int32 FindFirstChar(FUtf8StringView View, UTF8CHAR Search, ESearchCase::Type SearchCase)
Definition Find.cpp:445
UE::String::FindLastOfAny
int32 FindLastOfAny(FAnsiStringView View, TConstArrayView< FAnsiStringView > Search, ESearchCase::Type SearchCase, int32 *OutMatchIndex)
Definition Find.cpp:430
UE::String::FindFirstOfAnyChar
int32 FindFirstOfAnyChar(FUtf8StringView View, std::initializer_list< UTF8CHAR > Search, ESearchCase::Type SearchCase, int32 *OutMatchIndex)
Definition Find.cpp:465
UE::String::FindFirstOfAny
int32 FindFirstOfAny(FAnsiStringView View, TConstArrayView< FAnsiStringView > Search, ESearchCase::Type SearchCase, int32 *OutMatchIndex)
Definition Find.cpp:415