citra/src/common/string_util.h
JosJuice ce07ef1821 android: Use correct encoding when converting strings
The JNI functions that have "UTF" their name use "modified UTF-8"
rather than the standard UTF-8 that Citra uses, at least according
to Oracle's documentation, so it is incorrect for us to use them.
This change fixes the problem by converting between UTF-8 and
UTF-16 manually instead of letting JNI do it for us.
2022-08-03 15:54:15 +02:00

86 lines
2.9 KiB
C++

// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <algorithm>
#include <cstddef>
#include <string>
#include <string_view>
#include <vector>
#include "common/common_types.h"
#include "common/swap.h"
namespace Common {
/// Make a string lowercase
[[nodiscard]] std::string ToLower(std::string str);
/// Make a string uppercase
[[nodiscard]] std::string ToUpper(std::string str);
[[nodiscard]] std::string StripSpaces(const std::string& s);
[[nodiscard]] std::string StripQuotes(const std::string& s);
[[nodiscard]] std::string StringFromBool(bool value);
[[nodiscard]] std::string TabsToSpaces(int tab_size, std::string in);
void SplitString(const std::string& str, char delim, std::vector<std::string>& output);
// "C:/Windows/winhelp.exe" to "C:/Windows/", "winhelp", ".exe"
bool SplitPath(const std::string& full_path, std::string* _pPath, std::string* _pFilename,
std::string* _pExtension);
void BuildCompleteFilename(std::string& _CompleteFilename, const std::string& _Path,
const std::string& _Filename);
[[nodiscard]] std::string ReplaceAll(std::string result, const std::string& src,
const std::string& dest);
[[nodiscard]] std::string UTF16ToUTF8(std::u16string_view input);
[[nodiscard]] std::u16string UTF8ToUTF16(std::string_view input);
#ifdef _WIN32
[[nodiscard]] std::string UTF16ToUTF8(const std::wstring& input);
[[nodiscard]] std::wstring UTF8ToUTF16W(const std::string& str);
#endif
/**
* Compares the string defined by the range [`begin`, `end`) to the null-terminated C-string
* `other` for equality.
*/
template <typename InIt>
[[nodiscard]] bool ComparePartialString(InIt begin, InIt end, const char* other) {
for (; begin != end && *other != '\0'; ++begin, ++other) {
if (*begin != *other) {
return false;
}
}
// Only return true if both strings finished at the same point
return (begin == end) == (*other == '\0');
}
/**
* Converts a UTF-16 text in a container to a UTF-8 std::string.
*/
template <typename T>
std::string UTF16BufferToUTF8(const T& text) {
const auto text_end = std::find(text.begin(), text.end(), u'\0');
const std::size_t text_size = std::distance(text.begin(), text_end);
std::u16string buffer(text_size, 0);
std::transform(text.begin(), text_end, buffer.begin(), [](u16_le character) {
return static_cast<char16_t>(static_cast<u16>(character));
});
return UTF16ToUTF8(buffer);
}
/**
* Creates a std::string from a fixed-size NUL-terminated char buffer. If the buffer isn't
* NUL-terminated then the string ends at max_len characters.
*/
[[nodiscard]] std::string StringFromFixedZeroTerminatedBuffer(const char* buffer,
std::size_t max_len);
} // namespace Common