257 lines
9.8 KiB
C
257 lines
9.8 KiB
C
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// The MIT License (MIT)
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//
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// Copyright(c) Unity Technologies, Microsoft Corporation
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files(the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions :
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#pragma once
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#include "il2cpp-string-types.h"
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#include <string>
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#include <vector>
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#include <limits>
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#include <stdint.h>
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#include "il2cpp-config.h"
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#include "StringView.h"
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namespace il2cpp
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{
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namespace utils
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{
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class LIBIL2CPP_CODEGEN_API StringUtils
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{
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public:
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static std::string Printf(const char* format, ...);
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static std::string NPrintf(const char* format, size_t max_n, ...);
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static std::string Utf16ToUtf8(const Il2CppChar* utf16String);
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static std::string Utf16ToUtf8(const Il2CppChar* utf16String, int maximumSize);
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static std::string Utf16ToUtf8(const UTF16String& utf16String);
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static UTF16String Utf8ToUtf16(const char* utf8String);
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static UTF16String Utf8ToUtf16(const char* utf8String, size_t length);
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static UTF16String Utf8ToUtf16(const std::string& utf8String);
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static char* StringDuplicate(const char *strSource);
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static Il2CppChar* StringDuplicate(const Il2CppChar* strSource, size_t length);
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static bool EndsWith(const std::string& string, const std::string& suffix);
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static Il2CppChar* GetChars(Il2CppString* str);
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static int32_t GetLength(Il2CppString* str);
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#if IL2CPP_TARGET_WINDOWS
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static inline std::string NativeStringToUtf8(const Il2CppNativeString& nativeStr)
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{
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IL2CPP_ASSERT(nativeStr.length() < static_cast<size_t>(std::numeric_limits<int>::max()));
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return Utf16ToUtf8(nativeStr.c_str(), static_cast<int>(nativeStr.length()));
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}
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static inline std::string NativeStringToUtf8(const Il2CppNativeChar* nativeStr)
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{
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return Utf16ToUtf8(nativeStr);
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}
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static inline std::string NativeStringToUtf8(const Il2CppNativeChar* nativeStr, uint32_t length)
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{
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IL2CPP_ASSERT(length < static_cast<uint32_t>(std::numeric_limits<int>::max()));
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return Utf16ToUtf8(nativeStr, static_cast<int>(length));
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}
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static inline Il2CppNativeString Utf8ToNativeString(const std::string& str)
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{
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IL2CPP_ASSERT(str.length() < static_cast<size_t>(std::numeric_limits<int>::max()));
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return Utf8ToUtf16(str.c_str(), str.length());
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}
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static inline Il2CppNativeString Utf8ToNativeString(const char* str)
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{
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return Utf8ToUtf16(str);
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}
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#else
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static inline std::string NativeStringToUtf8(Il2CppNativeString& nativeStr)
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{
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return nativeStr;
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}
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static inline std::string NativeStringToUtf8(const Il2CppNativeChar* nativeStr)
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{
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return nativeStr;
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}
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static inline std::string NativeStringToUtf8(const Il2CppNativeChar* nativeStr, uint32_t length)
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{
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return std::string(nativeStr, length);
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}
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static inline Il2CppNativeString Utf8ToNativeString(const std::string& str)
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{
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return str;
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}
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static inline Il2CppNativeString Utf8ToNativeString(const char* str)
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{
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return str;
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}
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#endif
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template<typename CharType, size_t N>
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static inline size_t LiteralLength(const CharType(&str)[N])
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{
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return N - 1;
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}
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template<typename CharType>
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static size_t StrLen(const CharType* str)
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{
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size_t length = 0;
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while (*str)
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{
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str++;
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length++;
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}
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return length;
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}
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template <typename CharType>
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static inline bool Equals(const StringView<CharType>& left, const StringView<CharType>& right)
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{
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if (left.Length() != right.Length())
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return false;
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return memcmp(left.Str(), right.Str(), left.Length() * sizeof(CharType)) == 0;
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}
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template <typename CharType, size_t rightLength>
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static inline bool Equals(const StringView<CharType>& left, const CharType (&right)[rightLength])
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{
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if (left.Length() != rightLength - 1)
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return false;
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return memcmp(left.Str(), right, (rightLength - 1) * sizeof(CharType)) == 0;
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}
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template <typename CharType>
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static inline bool StartsWith(const StringView<CharType>& left, const StringView<CharType>& right)
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{
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if (left.Length() < right.Length())
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return false;
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return memcmp(left.Str(), right.Str(), right.Length() * sizeof(CharType)) == 0;
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}
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template <typename CharType, size_t rightLength>
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static inline bool StartsWith(const StringView<CharType>& left, const CharType(&right)[rightLength])
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{
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if (left.Length() < rightLength - 1)
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return false;
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return memcmp(left.Str(), right, (rightLength - 1) * sizeof(CharType)) == 0;
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}
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// Taken from github.com/Microsoft/referencesource/blob/master/mscorlib/system/string.cs
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template<typename CharType>
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static inline size_t Hash(const CharType *str, size_t length)
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{
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IL2CPP_ASSERT(length <= static_cast<size_t>(std::numeric_limits<int>::max()));
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size_t hash1 = 5381;
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size_t hash2 = hash1;
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size_t i = 0;
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CharType c;
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const CharType* s = str;
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while (true)
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{
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if (i++ >= length)
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break;
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c = s[0];
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hash1 = ((hash1 << 5) + hash1) ^ c;
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if (i++ >= length)
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break;
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c = s[1];
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hash2 = ((hash2 << 5) + hash2) ^ c;
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s += 2;
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}
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return hash1 + (hash2 * 1566083941);
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}
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template<typename CharType>
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static inline size_t Hash(const CharType *str)
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{
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size_t hash1 = 5381;
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size_t hash2 = hash1;
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CharType c;
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const CharType* s = str;
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while ((c = s[0]) != 0)
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{
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hash1 = ((hash1 << 5) + hash1) ^ c;
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c = s[1];
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if (c == 0)
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break;
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hash2 = ((hash2 << 5) + hash2) ^ c;
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s += 2;
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}
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return hash1 + (hash2 * 1566083941);
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}
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template<typename StringType>
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struct StringHasher
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{
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typedef typename StringType::value_type CharType;
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size_t operator()(const StringType& value) const
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{
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return Hash(value.c_str(), value.length());
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}
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};
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template<typename CharType>
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struct StringHasher<const CharType*>
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{
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size_t operator()(const CharType* value) const
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{
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return Hash(value);
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}
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};
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};
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} /* utils */
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} /* il2cpp */
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// Assumes str is not NULL
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#if defined(_MSC_VER)
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#define DECLARE_IL2CPP_STRING_AS_STRING_VIEW_OF_NATIVE_CHARS(variableName, str) \
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il2cpp::utils::StringView<Il2CppNativeChar> variableName(reinterpret_cast<Il2CppString*>(str)->chars, reinterpret_cast<Il2CppString*>(str)->length);
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#define DECLARE_IL2CPP_CHAR_PTR_AS_STRING_VIEW_OF_NATIVE_CHARS(variableName, str) \
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il2cpp::utils::StringView<Il2CppNativeChar> variableName(str, il2cpp::utils::StringUtils::StrLen (str));
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#define DECLARE_NATIVE_C_STRING_AS_STRING_VIEW_OF_IL2CPP_CHARS(variableName, str) \
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il2cpp::utils::StringView<Il2CppChar> variableName(str, wcslen(str));
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#define DECLARE_NATIVE_STRING_AS_STRING_VIEW_OF_IL2CPP_CHARS(variableName, str) \
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il2cpp::utils::StringView<Il2CppChar> variableName(str);
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#else
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#define DECLARE_IL2CPP_STRING_AS_STRING_VIEW_OF_NATIVE_CHARS(variableName, str) \
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Il2CppNativeString variableName##_native_string_storage = il2cpp::utils::StringUtils::Utf16ToUtf8(reinterpret_cast<Il2CppString*>(str)->chars, reinterpret_cast<Il2CppString*>(str)->length); \
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il2cpp::utils::StringView<Il2CppNativeChar> variableName(variableName##_native_string_storage.c_str(), variableName##_native_string_storage.length());
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#define DECLARE_IL2CPP_CHAR_PTR_AS_STRING_VIEW_OF_NATIVE_CHARS(variableName, str) \
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Il2CppNativeString variableName##_native_string_storage = il2cpp::utils::StringUtils::Utf16ToUtf8(str, il2cpp::utils::StringUtils::StrLen (str)); \
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il2cpp::utils::StringView<Il2CppNativeChar> variableName(variableName##_native_string_storage.c_str(), variableName##_native_string_storage.length());
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#define DECLARE_NATIVE_C_STRING_AS_STRING_VIEW_OF_IL2CPP_CHARS(variableName, str) \
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UTF16String variableName##_utf16String = il2cpp::utils::StringUtils::Utf8ToUtf16(str); \
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il2cpp::utils::StringView<Il2CppChar> variableName(variableName##_utf16String);
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#define DECLARE_NATIVE_STRING_AS_STRING_VIEW_OF_IL2CPP_CHARS DECLARE_NATIVE_C_STRING_AS_STRING_VIEW_OF_IL2CPP_CHARS
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#endif
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