恍兮惚兮 ac7843ee40 some
2024-11-09 15:13:27 +08:00

318 lines
8.6 KiB
C++

LPCSTR reverse_search_begin(const char *s, int maxsize)
{
if (*s)
for (int i = 0; i < maxsize; i++, s--)
if (!*s)
return s + 1;
return nullptr;
}
template <class CharT>
inline bool all_ascii_impl(const CharT *s, int maxsize)
{
if (s)
for (int i = 0; i < maxsize && *s; i++, s++)
if ((unsigned)*s > 127)
return false;
return true;
}
template <class StringT>
inline void strReplace_impl(StringT &str, const StringT &oldStr, const StringT &newStr)
{
size_t pos = 0;
while ((pos = str.find(oldStr, pos)) != StringT::npos)
{
str.replace(pos, oldStr.length(), newStr);
pos += newStr.length();
}
}
template <class StringT>
inline std::vector<StringT> strSplit_impl(const StringT &s, const StringT &delim)
{
StringT item;
std::vector<StringT> tokens;
StringT str = s;
size_t pos = 0;
while ((pos = str.find(delim)) != StringT::npos)
{
item = str.substr(0, pos);
tokens.push_back(item);
str.erase(0, pos + delim.length());
}
tokens.push_back(str);
return tokens;
}
template <class StringT>
inline bool endWith_impl(const StringT &s, const StringT &s2)
{
if ((s.size() >= s2.size()) && (s.substr(s.size() - s2.size(), s2.size()) == s2))
{
return true;
}
return false;
}
template <class StringT>
inline bool startWith_impl(const StringT &s, const StringT &s2)
{
if ((s.size() >= s2.size()) && (s.substr(0, s2.size()) == s2))
{
return true;
}
return false;
}
bool all_ascii(const char *s, int maxsize) { return all_ascii_impl<char>(s, maxsize); }
bool all_ascii(const wchar_t *s, int maxsize) { return all_ascii_impl<wchar_t>(s, maxsize); }
void strReplace(std::string &str, const std::string &oldStr, const std::string &newStr) { strReplace_impl<std::string>(str, oldStr, newStr); }
void strReplace(std::wstring &str, const std::wstring &oldStr, const std::wstring &newStr) { strReplace_impl<std::wstring>(str, oldStr, newStr); }
std::vector<std::string> strSplit(const std::string &s, const std::string &delim) { return strSplit_impl<std::string>(s, delim); }
std::vector<std::wstring> strSplit(const std::wstring &s, const std::wstring &delim) { return strSplit_impl<std::wstring>(s, delim); }
bool startWith(const std::string_view &s, const std::string_view &s2) { return startWith_impl<std::string_view>(s, s2); }
bool startWith(const std::wstring_view &s, const std::wstring_view &s2) { return startWith_impl<std::wstring_view>(s, s2); }
bool endWith(const std::string_view &s, const std::string_view &s2) { return endWith_impl<std::string_view>(s, s2); }
bool endWith(const std::wstring_view &s, const std::wstring_view &s2) { return endWith_impl<std::wstring_view>(s, s2); }
typedef HRESULT(WINAPI *CONVERTINETMULTIBYTETOUNICODE)(
LPDWORD lpdwMode,
DWORD dwSrcEncoding,
LPCSTR lpSrcStr,
LPINT lpnMultiCharCount,
LPWSTR lpDstStr,
LPINT lpnWideCharCount);
typedef HRESULT(WINAPI *CONVERTINETUNICODETOMULTIBYTE)(
LPDWORD lpdwMode,
DWORD dwEncoding,
LPCWSTR lpSrcStr,
LPINT lpnWideCharCount,
LPSTR lpDstStr,
LPINT lpnMultiCharCount);
std::optional<std::wstring> StringToWideString(const std::string &text, UINT encoding)
{
return StringToWideString(std::string_view(text), encoding);
}
std::optional<std::wstring> StringToWideString(std::string_view text, UINT encoding)
{
std::vector<wchar_t> buffer(text.size());
if (disable_mbwc)
{
int _s = text.size();
int _s2 = buffer.size();
auto h = LoadLibrary(TEXT("mlang.dll"));
if (h == 0)
return {};
auto ConvertINetMultiByteToUnicode = (CONVERTINETMULTIBYTETOUNICODE)GetProcAddress(h, "ConvertINetMultiByteToUnicode");
if (ConvertINetMultiByteToUnicode == 0)
return {};
auto hr = ConvertINetMultiByteToUnicode(0, encoding, text.data(), &_s, buffer.data(), &_s2);
if (SUCCEEDED(hr))
{
return std::wstring(buffer.data(), _s2);
}
else
return {};
}
else
{
if (int length = MultiByteToWideChar(encoding, 0, text.data(), text.size(), buffer.data(), buffer.size()))
return std::wstring(buffer.data(), length);
return {};
}
}
std::wstring StringToWideString(const std::string &text)
{
return StringToWideString(text, CP_UTF8).value();
}
std::wstring StringToWideString(std::string_view text)
{
return StringToWideString(text, CP_UTF8).value();
}
std::optional<std::wstring> StringToWideString(const char *text, UINT encoding)
{
return StringToWideString(std::string_view(text), encoding);
}
std::wstring StringToWideString(const char *text)
{
return StringToWideString(std::string_view(text));
}
std::string WideStringToString(const std::wstring &text, UINT cp)
{
return WideStringToString(std::wstring_view(text), cp);
}
std::string WideStringToString(const wchar_t *text, UINT cp)
{
return WideStringToString(std::wstring_view(text), cp);
}
std::string WideStringToString(std::wstring_view text, UINT cp)
{
std::vector<char> buffer((text.size()) * 4);
if (disable_wcmb)
{
int _s = text.size();
int _s2 = buffer.size();
auto h = LoadLibrary(TEXT("mlang.dll"));
if (h == 0)
return {};
auto ConvertINetUnicodeToMultiByte = (CONVERTINETUNICODETOMULTIBYTE)GetProcAddress(h, "ConvertINetUnicodeToMultiByte");
if (ConvertINetUnicodeToMultiByte == 0)
return {};
auto hr = ConvertINetUnicodeToMultiByte(0, cp, text.data(), &_s, buffer.data(), &_s2);
if (SUCCEEDED(hr))
{
return std::string(buffer.data(), _s2);
}
else
return {};
}
else
{
WideCharToMultiByte(cp, 0, text.data(), text.size(), buffer.data(), buffer.size(), nullptr, nullptr);
return buffer.data();
}
}
inline unsigned int convertUTF32ToUTF16(unsigned int cUTF32, unsigned int &h, unsigned int &l)
{
if (cUTF32 < 0x10000)
{
h = 0;
l = cUTF32;
return cUTF32;
}
unsigned int t = cUTF32 - 0x10000;
h = (((t << 12) >> 22) + 0xD800);
l = (((t << 22) >> 22) + 0xDC00);
unsigned int ret = ((h << 16) | (l & 0x0000FFFF));
return ret;
}
u32string utf16_to_utf32(std::wstring_view wsv)
{
u32string utf32String;
for (size_t i = 0; i < wsv.size(); i++)
{
auto u16c = wsv[i];
if (u16c - 0xd800u < 2048u)
if ((u16c & 0xfffffc00 == 0xd800) && (i < wsv.size() - 1) && (wsv[i + 1] & 0xfffffc00 == 0xdc00))
{
utf32String += (u16c << 10) + wsv[i + 1] - 0x35fdc00;
i += 1;
}
else
{
// error invalid u16 char
}
else
utf32String += wsv[i];
}
return utf32String;
}
std::wstring utf32_to_utf16(u32string_view sv)
{
std::wstring u16str;
for (auto i = 0; i < sv.size(); i++)
{
unsigned h, l;
convertUTF32ToUTF16(sv[i], h, l);
if (h)
u16str.push_back((wchar_t)h);
u16str.push_back((wchar_t)l);
}
return u16str;
}
uint32_t *u32strcpy(uint32_t *s, const uint32_t *r)
{
while (*r)
{
*s = *r;
s += 1;
r += 1;
}
*s = 0;
return s;
}
// 检查一个字节是否是有效的 UTF-8 后续字节
int is_valid_following_byte(unsigned char byte)
{
return (byte & 0xC0) == 0x80; // 10xxxxxx
}
int utf8charlen(char *str)
{
if ((!str) || (!*str))
return 0;
unsigned char first_byte = (unsigned char)*str;
if ((first_byte & 0x80) == 0)
{
// 0xxxxxxx - 1 byte character
return 1;
}
else if ((first_byte & 0xE0) == 0xC0)
{
// 110xxxxx - 2 byte character
if (is_valid_following_byte((unsigned char)str[1]))
{
return 2;
}
}
else if ((first_byte & 0xF0) == 0xE0)
{
// 1110xxxx - 3 byte character
if (is_valid_following_byte((unsigned char)str[1]) &&
is_valid_following_byte((unsigned char)str[2]))
{
return 3;
}
}
else if ((first_byte & 0xF8) == 0xF0)
{
// 11110xxx - 4 byte character
if (is_valid_following_byte((unsigned char)str[1]) &&
is_valid_following_byte((unsigned char)str[2]) &&
is_valid_following_byte((unsigned char)str[3]))
{
return 4;
}
}
return 0; // 不是有效的UTF-8序列
}
std::string wcasta(const std::wstring &x)
{
std::string xx;
for (auto c : x)
xx += c;
return xx;
}
std::wstring acastw(const std::string &x)
{
std::wstring xx;
for (auto c : x)
xx += c;
return xx;
}
std::optional<std::wstring> commonparsestring(void *data, size_t length, void *php, DWORD df)
{
auto hp = (HookParam *)php;
if (hp->type & CODEC_UTF16)
return std::wstring((wchar_t *)data, length / sizeof(wchar_t));
else if (hp->type & CODEC_UTF32)
return utf32_to_utf16(u32string_view((uint32_t *)data, length / sizeof(uint32_t)));
else if (auto converted = StringToWideString(std::string((char *)data, length), (hp->type & CODEC_UTF8) ? CP_UTF8 : (hp->codepage ? hp->codepage : df)))
return converted.value();
else
return {};
}