82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
|
//+-------------------------------------------------------------------------
|
||
|
|
// Microsoft Windows
|
||
|
|
//
|
||
|
|
// Copyright (C) Microsoft Corporation, 1996 - 1999
|
||
|
|
//
|
||
|
|
// File: utf8.h
|
||
|
|
//
|
||
|
|
// Contents: WideChar (UNICODE) to/from UTF8 APIs
|
||
|
|
//
|
||
|
|
// APIs: WideCharToUTF8
|
||
|
|
// UTF8ToWideChar
|
||
|
|
//
|
||
|
|
// History: 19-Feb-97 philh created
|
||
|
|
//--------------------------------------------------------------------------
|
||
|
|
|
||
|
|
#ifndef __UTF8_H__
|
||
|
|
#define __UTF8_H__
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
//+-------------------------------------------------------------------------
|
||
|
|
// Maps a wide-character (Unicode) string to a new UTF-8 encoded character
|
||
|
|
// string.
|
||
|
|
//
|
||
|
|
// The wide characters are mapped as follows:
|
||
|
|
//
|
||
|
|
// Start End Bits UTF-8 Characters
|
||
|
|
// ------ ------ ---- --------------------------------
|
||
|
|
// 0x0000 0x007F 7 0x0xxxxxxx
|
||
|
|
// 0x0080 0x07FF 11 0x110xxxxx 0x10xxxxxx
|
||
|
|
// 0x0800 0xFFFF 16 0x1110xxxx 0x10xxxxxx 0x10xxxxxx
|
||
|
|
//
|
||
|
|
// The parameter and return value semantics are the same as for the
|
||
|
|
// Win32 API, WideCharToMultiByte.
|
||
|
|
//
|
||
|
|
// Note, starting with NT 4.0, WideCharToMultiByte supports CP_UTF8. CP_UTF8
|
||
|
|
// isn't supported on Win95.
|
||
|
|
//--------------------------------------------------------------------------
|
||
|
|
int
|
||
|
|
WINAPI
|
||
|
|
WideCharToUTF8(
|
||
|
|
IN LPCWSTR lpWideCharStr,
|
||
|
|
IN int cchWideChar,
|
||
|
|
OUT LPSTR lpUTF8Str,
|
||
|
|
IN int cchUTF8
|
||
|
|
);
|
||
|
|
|
||
|
|
//+-------------------------------------------------------------------------
|
||
|
|
// Maps a UTF-8 encoded character string to a new wide-character (Unicode)
|
||
|
|
// string.
|
||
|
|
//
|
||
|
|
// See CertWideCharToUTF8 for how the UTF-8 characters are mapped to wide
|
||
|
|
// characters.
|
||
|
|
//
|
||
|
|
// The parameter and return value semantics are the same as for the
|
||
|
|
// Win32 API, MultiByteToWideChar.
|
||
|
|
//
|
||
|
|
// If the UTF-8 characters don't contain the expected high order bits,
|
||
|
|
// ERROR_INVALID_PARAMETER is set and 0 is returned.
|
||
|
|
//
|
||
|
|
// Note, starting with NT 4.0, MultiByteToWideChar supports CP_UTF8. CP_UTF8
|
||
|
|
// isn't supported on Win95.
|
||
|
|
//--------------------------------------------------------------------------
|
||
|
|
int
|
||
|
|
WINAPI
|
||
|
|
UTF8ToWideChar(
|
||
|
|
IN LPCSTR lpUTF8Str,
|
||
|
|
IN int cchUTF8,
|
||
|
|
OUT LPWSTR lpWideCharStr,
|
||
|
|
IN int cchWideChar
|
||
|
|
);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
} // Balance extern "C" above
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|