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doc: update documentation

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- rename Constrain to Constraint in code and documentation.
- remove massive annotation of encoding helper because the documentation is enough.
- fix doxygen character shift warnings.
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yyc12345
2024-07-05 22:25:14 +08:00
parent 65b81f5cfa
commit a1699f13db
5 changed files with 26 additions and 59 deletions
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43
src/EncodingHelper.hpp
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@ -10,48 +10,15 @@
#endif
/**
* @brief The namespace handling encoding issues.
* @brief The helper for all encoding aspects.
* @details
* \par Windows Encoding Convertion
* This namespace provides the convertion between wchar_t, UTF8 and code-page-based string:
* The function name has following format: \c AAAToBBB.
* AAA is the source string and BBB is target string.
* AAA and BBB has following possible value:
* \li \c Char: Code-page-based string. Usually it will add a code page parameter for function to get the code page of this string. For code page, please see Microsoft document.
* \li \c UTF8: UTF8 string.
* \li \c Wchar: wchar_t string.
* \par
* For example: \c WcharToUTF8 will perform the convertion from wchar_t to UTF8,
* and \c CharToChar will perform the convertion between 2 code-page-based string and caller can specify individual code page for these 2 string.
* \par
* These functions are Windows specific and are unavailable on other platforms.
* Becasue Windows use wchar_t string as its function arguments for globalization, and this library use UTF8 everywhere.
* So it should have a bidirectional way to do convertion between wchar_t string and UTF8 string.
*
* \par UTF32, UTF16 and UTF8 Convertion
* This namespace also provide the convertion among UTF32, UTF16 and UTF8.
* These convertion functions are suit for all platforms, not Windows oriented.
* \par
* Due to implementation, this library assume all non-Windows system use UTF8 as their C locale.
* Otherwise these functions will produce wrong result.
*
* \par Function Parameters
* We provide these encoding convertion functions with following 2 types:
* \li Function returns \c bool and its parameter order source string pointer and a corresponding \c std::basic_string container for receiving result.
* \li Function returns corresponding \c std::basic_string result, and its parameter only order source string pointer.
* \par
* For these 2 declarations, both of them will not throw any exception and do not accept nullptr as source string.
* The only difference is that the way to indicate convertion error.
* \par
* First declaration will return false to indicate there is an error when doing convertion. Please note that the content of string container passing in may still be changed!
* Last declaration will return empty string to indicate error. Please note if you pass empty string in, they still will output empty string but it doesn't mean an error.
* So last declaration is used in the scenario that we don't care whether the convertion success did. For example, output something to console.
*
* For more infomations about how to use the functions provided by this namespace,
* please see \ref library_encoding and \ref encoding_helper.
*/
namespace YYCC::EncodingHelper {
#define _YYCC_U8(strl) u8 ## strl
#define YYCC_U8(strl) (reinterpret_cast<const ::YYCC::yycc_char8_t*>(_YYCC_U8(strl)))
#define _YYCC_U8(strl) u8 ## strl ///< The assistant macro for YYCC_U8.
#define YYCC_U8(strl) (reinterpret_cast<const ::YYCC::yycc_char8_t*>(_YYCC_U8(strl))) ///< The macro for creating UTF8 string literal. See \ref library_encoding.
const yycc_char8_t* ToUTF8(const char* src);
yycc_char8_t* ToUTF8(char* src);