유니 코드 값에서 charset을 어떻게 추론합니까?

Question

가 지금은 유니 코드 값을 얻을 수있다, 나는

HFONT CreateFont(
    int nHeight,    // height of font 
    int nWidth,    // average character width 
    int nEscapement,   // angle of escapement 
    int nOrientation,   // base-line orientation angle 
    int fnWeight,    // font weight 
    DWORD fdwItalic,   // italic attribute option 
    DWORD fdwUnderline,  // underline attribute option 
    DWORD fdwStrikeOut,  // strikeout attribute option 
    DWORD fdwCharSet,   // character set identifier 
    DWORD fdwOutputPrecision, // output precision 
    DWORD fdwClipPrecision, // clipping precision 
    DWORD fdwQuality,   // output quality 
    DWORD fdwPitchAndFamily, // pitch and family 
    LPCTSTR lpszFace   // typeface name 
); 

를 호출 유니 코드 값에서 이전의 캐릭터 세트를 얻을 수 있고 나는 MSDN에서 folloing 메시지를 받았습니다 :

fdwCharSet

[in] Specifies the character set. The following values are predefined: 
ANSI_CHARSET 
BALTIC_CHARSET 
CHINESEBIG5_CHARSET 
DEFAULT_CHARSET 
EASTEUROPE_CHARSET 
GB2312_CHARSET 
GREEK_CHARSET 
HANGUL_CHARSET 
MAC_CHARSET 
OEM_CHARSET 
RUSSIAN_CHARSET 
SHIFTJIS_CHARSET 
SYMBOL_CHARSET 
TURKISH_CHARSET 
VIETNAMESE_CHARSET 

Korean language edition of Windows: 
JOHAB_CHARSET 
Middle East language edition of Windows: 
ARABIC_CHARSET 
HEBREW_CHARSET 
Thai language edition of Windows: 
THAI_CHARSET 
The OEM_CHARSET value specifies a character set that is operating-system dependent. 

Windows 95/98/Me: You can use the DEFAULT_CHARSET value to allow the name and size of a font to fully describe the logical font. If the specified font name does not exist, a font from any character set can be substituted for the specified font, so you should use DEFAULT_CHARSET sparingly to avoid unexpected results. 

을 여기 내가 지금 가지고있는 것이 있습니다 :

FX_INT32 CharSetFromUnicode(FX_WORD word) 
{ 
    int nACP = GetACP(); 
    switch (nACP) 
    { 
    case 932: 
    case 936: 
    case 950: 
    case 949: 
     if ((word >= 0x2E80 && word <= 0x2EFF) || 
      (word >= 0x3000 && word <= 0x303F) || 
      (word >= 0x3200 && word <= 0x32FF) || 
      (word >= 0x3300 && word <= 0x33FF) || 
      (word >= 0x3400 && word <= 0x4DB5) || 
      (word >= 0x4E00 && word <= 0x9FFF) || 
      (word >= 0xF900 && word <= 0xFAFF) || 
      (word >= 0xFE30 && word <= 0xFE4F) || 
      (word >= 0x20000 && word <= 0x2A6D6) || 
      (word >= 0x2F800 && word <= 0x2FA1F)) 
     { 
      switch (nACP) 
      { 
      case 932: 
       return SHIFTJIS_CHARSET; 
      case 936: 
      case 950: 
       return GB2312_CHARSET; 
      case 949: 
       return HANGUL_CHARSET; 
      } 
     } 
     break; 
    } 

    //find new charset 
    if ((word >= 0x4E00 && word <= 0x9FA5) || 
     (word >= 0xE7C7 && word <= 0xE7F3) || 
     (word >= 0x3000 && word <= 0x303F) || //）"《" "》" "。" "、" 
     (word >= 0x2000 && word <= 0x206F)) 
    { 
     return GB2312_CHARSET; 
    } 

    if (((word >= 0x3040) && (word <= 0x309F)) || 
     ((word >= 0x30A0) && (word <= 0x30FF)) || 
     ((word >= 0x31F0) && (word <= 0x31FF)) || 
     ((word >= 0xFF00) && (word <= 0xFFEF))) 
    { 
     return SHIFTJIS_CHARSET; 
    } 

    if (((word >= 0xAC00) && (word <= 0xD7AF)) || 
     ((word >= 0x1100) && (word <= 0x11FF)) || 
     ((word >= 0x3130) && (word <= 0x318F))) 
    { 
     return HANGUL_CHARSET; 
    } 

    if (word >= 0x0E00 && word <= 0x0E7F) 
     return THAI_CHARSET; 

    if ((word >= 0x0370 && word <= 0x03FF) || 
     (word >= 0x1F00 && word <= 0x1FFF)) 
     return GREEK_CHARSET; 

    if ((word >= 0x0600 && word <= 0x06FF) || 
     (word >= 0xFB50 && word <= 0xFEFC)) 
     return ARABIC_CHARSET; 

    if (word >= 0x0590 && word <= 0x05FF) 
     return HEBREW_CHARSET; 

    if (word >= 0x0400 && word <= 0x04FF) 
     return RUSSIAN_CHARSET; 

    if (word == 0x11E || word == 0x11F || word == 0x130 || word == 0x131 || word == 0x15E || word == 0x15F) 
     return TURKISH_CHARSET; 

    if (word >= 0x0100 && word <= 0x024F) 
     return EASTEUROPE_CHARSET; 

    if (word >= 0x1E00 && word <= 0x1EFF) 
     return VIETNAMESE_CHARSET; 

    return GB2312_CHARSET; 
} 

.. 그러나 기능이 제대로 작동하지 않습니다. 누구든지 나를 고칠 수 있습니까?

Answer 1

일반적으로 인코딩을 추측하는 방법은입니다.

그러나 실제로는 추측 할 수 있습니다. 예를 들어 모질라에서 만든 유니버셜 문자 세트 탐지 라이브러리는 매우 양호합니다 : uchardet.

방문하는 임의 페이지의 문자 세트를 자동으로 추측하기 위해 Firefox에서 사용됩니다 (항상 적절한 인코딩을 제공하지는 않음). 실제로 잘 작동하는 것으로 보입니다.