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refactor: update encoding namespace

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- add all essential functions prototypes in iconv encoding.
- add lost UTF convertion for windows encoding.
This commit is contained in:
yyc12345
2025-07-21 20:36:26 +08:00
parent c2f6e29c36
commit 6d44c7605b
5 changed files with 182 additions and 9 deletions
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16
src/yycc/encoding/iconv.cpp
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@ -75,8 +75,22 @@ namespace yycc::encoding::iconv {
that_iconv_close(this->inner);
}
}
PrivToken(PrivToken&& rhs) : inner(rhs.inner) {
// Reset rhs inner
rhs.inner = INVALID_ICONV_TOKEN;
}
PrivToken& operator=(PrivToken&& rhs) {
// Free self first
if (this->inner != INVALID_ICONV_TOKEN) {
that_iconv_close(this->inner);
}
// Copy rhs inner and reset it.
this->inner = rhs.inner;
rhs.inner = INVALID_ICONV_TOKEN;
// Return self
return *this;
}
YYCC_DELETE_COPY(PrivToken)
YYCC_DEFAULT_MOVE(PrivToken)
bool is_valid() const { return this->inner != INVALID_ICONV_TOKEN; }
that_iconv_t get_inner() const { return this->inner; }

145
src/yycc/encoding/iconv.hpp
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@ -40,9 +40,9 @@ namespace yycc::encoding::iconv {
/// @private
enum class ConvError {
InvalidCd, ///< Given token is invalid.
NullPointer, ///< Some of essential pointer in argument is nullptr.
InvalidMbSeq, ///< An invalid multibyte sequence has been encountered in the input.
InvalidCd, ///< Given token is invalid.
NullPointer, ///< Some of essential pointer in argument is nullptr.
InvalidMbSeq, ///< An invalid multibyte sequence has been encountered in the input.
IncompleteMbSeq, ///< An incomplete multibyte sequence has been encountered in the input.
};
@ -50,6 +50,145 @@ namespace yycc::encoding::iconv {
template<typename T>
using ConvResult = NS_YYCC_PATCH_EXPECTED::Expected<T, ConvError>;
// TODO: 为下列类添加注释时，指明static开头的是一次性使用的，适用于转换一两次结束。
// 用实例类的适用于需要持续转换的。
// Char -> UTF8
class CharToUtf8 {
public:
CharToUtf8(const CodeName& code_name);
~CharToUtf8();
YYCC_DELETE_COPY(CharToUtf8)
YYCC_DEFAULT_MOVE(CharToUtf8)
public:
ConvResult<NS_YYCC_STRING::u8string> priv_to_utf8(const std::string_view& src);
bool to_utf8(const std::string_view& src, NS_YYCC_STRING::u8string& dst);
NS_YYCC_STRING::u8string to_utf8(const std::string_view& src);
private:
Token token;
};
// UTF8 -> Char
class Utf8ToChar {
public:
Utf8ToChar(const CodeName& code_name);
~Utf8ToChar();
YYCC_DELETE_COPY(Utf8ToChar)
YYCC_DEFAULT_MOVE(Utf8ToChar)
public:
ConvResult<std::string> priv_to_char(const NS_YYCC_STRING::u8string_view& src);
bool to_char(const NS_YYCC_STRING::u8string_view& src, std::string& dst);
std::string to_char(const NS_YYCC_STRING::u8string_view& src);
private:
Token token;
};
// WChar -> Char
class WcharToChar {
public:
WcharToChar(const CodeName& code_name);
~WcharToChar();
YYCC_DELETE_COPY(WcharToChar)
YYCC_DEFAULT_MOVE(WcharToChar)
public:
ConvResult<std::string> priv_to_char(const std::wstring_view& src);
bool to_char(const std::wstring_view& src, std::string& dst);
std::string to_char(const std::wstring_view& src);
private:
Token token;
};
// Char -> WChar
class CharToWchar {
public:
CharToWchar(const CodeName& code_name);
~CharToWchar();
YYCC_DELETE_COPY(CharToWchar)
YYCC_DEFAULT_MOVE(CharToWchar)
public:
ConvResult<std::wstring> priv_to_wchar(const std::string_view& src, const CodeName& code_name);
bool to_wchar(const std::string_view& src, std::wstring& dst, const CodeName& code_name);
std::wstring to_wchar(const std::string_view& src, const CodeName& code_name);
private:
Token token;
};
// UTF8 -> UTF16
class Utf8ToUtf16 {
public:
Utf8ToUtf16();
~Utf8ToUtf16();
YYCC_DELETE_COPY(Utf8ToUtf16)
YYCC_DEFAULT_MOVE(Utf8ToUtf16)
public:
ConvResult<std::u16string> priv_to_utf16(const NS_YYCC_STRING::u8string_view& src);
bool to_utf16(const NS_YYCC_STRING::u8string_view& src, std::u16string& dst);
std::u16string to_utf16(const NS_YYCC_STRING::u8string_view& src);
private:
Token token;
};
// UTF16 -> UTF8
class Utf16ToUtf8 {
public:
Utf16ToUtf8();
~Utf16ToUtf8();
YYCC_DELETE_COPY(Utf16ToUtf8)
YYCC_DEFAULT_MOVE(Utf16ToUtf8)
public:
ConvResult<NS_YYCC_STRING::u8string> priv_to_utf8(const std::u16string_view& src);
bool to_utf8(const std::u16string_view& src, NS_YYCC_STRING::u8string& dst);
NS_YYCC_STRING::u8string to_utf8(const std::u16string_view& src);
private:
Token token;
};
// UTF8 -> UTF32
class Utf8ToUtf32 {
public:
Utf8ToUtf32();
~Utf8ToUtf32();
YYCC_DELETE_COPY(Utf8ToUtf32)
YYCC_DEFAULT_MOVE(Utf8ToUtf32)
public:
ConvResult<std::u32string> priv_to_utf32(const NS_YYCC_STRING::u8string_view& src);
bool to_utf32(const NS_YYCC_STRING::u8string_view& src, std::u32string& dst);
std::u32string to_utf32(const NS_YYCC_STRING::u8string_view& src);
private:
Token token;
};
// UTF32 -> UTF8
class Utf32ToUtf8 {
public:
Utf32ToUtf8();
~Utf32ToUtf8();
YYCC_DELETE_COPY(Utf32ToUtf8)
YYCC_DEFAULT_MOVE(Utf32ToUtf8)
public:
ConvResult<NS_YYCC_STRING::u8string> priv_to_utf8(const std::u32string_view& src);
bool to_utf8(const std::u32string_view& src, NS_YYCC_STRING::u8string& dst);
NS_YYCC_STRING::u8string to_utf8(const std::u32string_view& src);
private:
Token token;
};
} // namespace yycc::encoding::iconv
#undef NS_YYCC_PATCH_EXPECTED

4
src/yycc/encoding/utf.hpp
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@ -15,25 +15,21 @@ namespace yycc::encoding::utf {
using ConvResult = NS_YYCC_PATCH_EXPECTED::Expected<T, ConvError>;
// UTF8 -> UTF16
ConvResult<std::u16string> priv_to_utf16(const NS_YYCC_STRING::u8string_view& src);
bool to_utf16(const NS_YYCC_STRING::u8string_view& src, std::u16string& dst);
std::u16string to_utf16(const NS_YYCC_STRING::u8string_view& src);
// UTF16 -> UTF8
ConvResult<NS_YYCC_STRING::u8string> priv_to_utf8(const std::u16string_view& src);
bool to_utf8(const std::u16string_view& src, NS_YYCC_STRING::u8string& dst);
NS_YYCC_STRING::u8string to_utf8(const std::u16string_view& src);
// UTF8 -> UTF32
ConvResult<std::u32string> priv_to_utf32(const NS_YYCC_STRING::u8string_view& src);
bool to_utf32(const NS_YYCC_STRING::u8string_view& src, std::u32string& dst);
std::u32string to_utf32(const NS_YYCC_STRING::u8string_view& src);
// UTF32 -> UTF8
ConvResult<NS_YYCC_STRING::u8string> priv_to_utf8(const std::u32string_view& src);
bool to_utf8(const std::u32string_view& src, NS_YYCC_STRING::u8string& dst);
NS_YYCC_STRING::u8string to_utf8(const std::u32string_view& src);

6
src/yycc/encoding/windows.cpp
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@ -241,9 +241,13 @@ namespace yycc::encoding::windows {
#pragma endregion
// YYC MARK:
// The convertion between UTF is implemented by c16rtomb, c32rtomb, mbrtoc16 and mbrtoc32.
// These function is locale related in C++ standard, but in Microsoft STL, it's only for UTF8.
// So we can use them safely in Win32 environment.
#undef CONVFN_TYPE1
#undef CONVFN_TYPE2
#undef CONVFCT_TYPE4
} // namespace yycc::encoding::windows

20
src/yycc/encoding/windows.hpp
View File

@ -65,6 +65,26 @@ namespace yycc::encoding::windows {
bool to_char(const NS_YYCC_STRING::u8string_view& src, std::string& dst, CodePage code_page);
std::string to_char(const NS_YYCC_STRING::u8string_view& src, CodePage code_page);
// UTF8 -> UTF16
ConvResult<std::u16string> priv_to_utf16(const NS_YYCC_STRING::u8string_view& src);
bool to_utf16(const NS_YYCC_STRING::u8string_view& src, std::u16string& dst);
std::u16string to_utf16(const NS_YYCC_STRING::u8string_view& src);
// UTF16 -> UTF8
ConvResult<NS_YYCC_STRING::u8string> priv_to_utf8(const std::u16string_view& src);
bool to_utf8(const std::u16string_view& src, NS_YYCC_STRING::u8string& dst);
NS_YYCC_STRING::u8string to_utf8(const std::u16string_view& src);
// UTF8 -> UTF32
ConvResult<std::u32string> priv_to_utf32(const NS_YYCC_STRING::u8string_view& src);
bool to_utf32(const NS_YYCC_STRING::u8string_view& src, std::u32string& dst);
std::u32string to_utf32(const NS_YYCC_STRING::u8string_view& src);
// UTF32 -> UTF8
ConvResult<NS_YYCC_STRING::u8string> priv_to_utf8(const std::u32string_view& src);
bool to_utf8(const std::u32string_view& src, NS_YYCC_STRING::u8string& dst);
NS_YYCC_STRING::u8string to_utf8(const std::u32string_view& src);
} // namespace yycc::encoding::windows
#undef NS_YYCC_PATCH_EXPECTED