Author: mjmartin Date: Tue May 18 08:34:48 2010 New Revision: 47263
URL: http://svn.reactos.org/svn/reactos?rev=47263&view=rev Log: [Kernel32] - Implement UTF7 Support. Patch by Katayama Hirofumi.
Modified: trunk/reactos/dll/win32/kernel32/misc/nls.c
Modified: trunk/reactos/dll/win32/kernel32/misc/nls.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32/misc/nls... ============================================================================== --- trunk/reactos/dll/win32/kernel32/misc/nls.c [iso-8859-1] (original) +++ trunk/reactos/dll/win32/kernel32/misc/nls.c [iso-8859-1] Tue May 18 08:34:48 2010 @@ -1258,6 +1258,170 @@ if (IntGetLoadedCodePageEntry(CodePage)) return TRUE; return GetCPFileNameFromRegistry(CodePage, NULL, 0); +} + +static const signed char +base64inv[] = +{ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63, + 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1, + -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, + -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, + 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1 +}; + +static VOID Utf7Base64Decode(BYTE *pbDest, LPCSTR pszSrc, INT cchSrc) +{ + INT i, j, n; + BYTE b; + + for(i = 0; i < cchSrc / 4 * 4; i += 4) + { + for(j = n = 0; j < 4; ) + { + b = (BYTE) base64inv[(BYTE) *pszSrc++]; + n |= (((INT) b) << ((3 - j) * 6)); + j++; + } + for(j = 0; j < 3; j++) + *pbDest++ = (BYTE) ((n >> (8 * (2 - j))) & 0xFF); + } + for(j = n = 0; j < cchSrc % 4; ) + { + b = (BYTE) base64inv[(BYTE) *pszSrc++]; + n |= (((INT) b) << ((3 - j) * 6)); + j++; + } + for(j = 0; j < ((cchSrc % 4) * 6 / 8); j++) + *pbDest++ = (BYTE) ((n >> (8 * (2 - j))) & 0xFF); +} + +static VOID myswab(LPVOID pv, INT cw) +{ + LPBYTE pb = (LPBYTE) pv; + BYTE b; + while(cw > 0) + { + b = *pb; + *pb = pb[1]; + pb[1] = b; + pb += 2; + cw--; + } +} + +static INT Utf7ToWideCharSize(LPCSTR pszUtf7, INT cchUtf7) +{ + INT n, c, cch; + CHAR ch; + LPCSTR pch; + + c = 0; + while(cchUtf7 > 0) + { + ch = *pszUtf7++; + if (ch == '+') + { + ch = *pszUtf7; + if (ch == '-') + { + c++; + pszUtf7++; + cchUtf7 -= 2; + continue; + } + cchUtf7--; + pch = pszUtf7; + while(cchUtf7 > 0 && (BYTE) *pszUtf7 < 0x80 && + base64inv[*pszUtf7] >= 0) + { + cchUtf7--; + pszUtf7++; + } + cch = pszUtf7 - pch; + n = (cch * 3) / 8; + c += n; + if (cchUtf7 > 0 && *pszUtf7 == '-') + { + pszUtf7++; + cchUtf7--; + } + } + else + { + c++; + cchUtf7--; + } + } + + return c; +} + +static INT Utf7ToWideChar(LPCSTR pszUtf7, INT cchUtf7, LPWSTR pszWide, INT cchWide) +{ + INT n, c, cch; + CHAR ch; + LPCSTR pch; + WORD *pwsz; + + c = Utf7ToWideCharSize(pszUtf7, cchUtf7); + if (cchWide == 0) + return c; + + if (cchWide < c) + { + SetLastError(ERROR_INSUFFICIENT_BUFFER); + return 0; + } + + while(cchUtf7 > 0) + { + ch = *pszUtf7++; + if (ch == '+') + { + if (*pszUtf7 == '-') + { + *pszWide++ = L'+'; + pszUtf7++; + cchUtf7 -= 2; + continue; + } + cchUtf7--; + pch = pszUtf7; + while(cchUtf7 > 0 && (BYTE) *pszUtf7 < 0x80 && + base64inv[*pszUtf7] >= 0) + { + cchUtf7--; + pszUtf7++; + } + cch = pszUtf7 - pch; + n = (cch * 3) / 8; + pwsz = (WORD *) HeapAlloc(GetProcessHeap(), 0, (n + 1) * sizeof(WORD)); + if (pwsz == NULL) + return 0; + ZeroMemory(pwsz, n * sizeof(WORD)); + Utf7Base64Decode((BYTE *) pwsz, pch, cch); + myswab(pwsz, n); + CopyMemory(pszWide, pwsz, n * sizeof(WORD)); + HeapFree(GetProcessHeap(), 0, pwsz); + pszWide += n; + if (cchUtf7 > 0 && *pszUtf7 == '-') + { + pszUtf7++; + cchUtf7--; + } + } + else + { + *pszWide++ = (WCHAR) ch; + cchUtf7--; + } + } + + return c; }
/** @@ -1325,8 +1489,13 @@ WideCharCount);
case CP_UTF7: - DPRINT1("MultiByteToWideChar for CP_UTF7 is not implemented!\n"); - return 0; + if (Flags) + { + SetLastError(ERROR_INVALID_FLAGS); + return 0; + } + return Utf7ToWideChar(MultiByteString, MultiByteCount, + WideCharString, WideCharCount);
case CP_SYMBOL: return IntMultiByteToWideCharSYMBOL(Flags, @@ -1342,6 +1511,162 @@ WideCharString, WideCharCount); } +} + +static const char mustshift[] = +{ + 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, + 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, + 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1 +}; + +static const char base64[] = +"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + +static INT WideCharToUtf7Size(LPCWSTR pszWide, INT cchWide) +{ + WCHAR wch; + INT c = 0; + BOOL fShift = FALSE; + + while(cchWide > 0) + { + wch = *pszWide; + if (wch < 0x80 && !mustshift[wch]) + { + c++; + cchWide--; + pszWide++; + } + else + { + if (wch == L'+') + { + c++; + c++; + cchWide--; + pszWide++; + continue; + } + if (!fShift) + { + c++; + fShift = TRUE; + } + pszWide++; + cchWide--; + c += 3; + if (cchWide > 0 && (*pszWide >= 0x80 || mustshift[*pszWide])) + { + pszWide++; + cchWide--; + c += 3; + if (cchWide > 0 && (*pszWide >= 0x80 || mustshift[*pszWide])) + { + pszWide++; + cchWide--; + c += 2; + } + } + if (cchWide > 0 && *pszWide < 0x80 && !mustshift[*pszWide]) + { + c++; + fShift = FALSE; + } + } + } + if (fShift) + c++; + + return c; +} + +static INT WideCharToUtf7(LPCWSTR pszWide, INT cchWide, LPSTR pszUtf7, INT cchUtf7) +{ + WCHAR wch; + INT c, n; + WCHAR wsz[3]; + BOOL fShift = FALSE; + + c = WideCharToUtf7Size(pszWide, cchWide); + if (cchUtf7 == 0) + return c; + + if (cchUtf7 < c) + { + SetLastError(ERROR_INSUFFICIENT_BUFFER); + return 0; + } + + while(cchWide > 0) + { + wch = *pszWide; + if (wch < 0x80 && !mustshift[wch]) + { + *pszUtf7++ = (CHAR) wch; + cchWide--; + pszWide++; + } + else + { + if (wch == L'+') + { + *pszUtf7++ = '+'; + *pszUtf7++ = '-'; + cchWide--; + pszWide++; + continue; + } + if (!fShift) + { + *pszUtf7++ = '+'; + fShift = TRUE; + } + wsz[0] = *pszWide++; + cchWide--; + n = 1; + if (cchWide > 0 && (*pszWide >= 0x80 || mustshift[*pszWide])) + { + wsz[1] = *pszWide++; + cchWide--; + n++; + if (cchWide > 0 && (*pszWide >= 0x80 || mustshift[*pszWide])) + { + wsz[2] = *pszWide++; + cchWide--; + n++; + } + } + *pszUtf7++ = base64[wsz[0] >> 10]; + *pszUtf7++ = base64[(wsz[0] >> 4) & 0x3F]; + *pszUtf7++ = base64[(wsz[0] << 2 | wsz[1] >> 14) & 0x3F]; + if (n >= 2) + { + *pszUtf7++ = base64[(wsz[1] >> 8) & 0x3F]; + *pszUtf7++ = base64[(wsz[1] >> 2) & 0x3F]; + *pszUtf7++ = base64[(wsz[1] << 4 | wsz[2] >> 12) & 0x3F]; + if (n >= 3) + { + *pszUtf7++ = base64[(wsz[2] >> 6) & 0x3F]; + *pszUtf7++ = base64[wsz[2] & 0x3F]; + } + } + if (cchWide > 0 && *pszWide < 0x80 && !mustshift[*pszWide]) + { + *pszUtf7++ = '-'; + fShift = FALSE; + } + } + } + if (fShift) + *pszUtf7 = '-'; + + return c; }
/** @@ -1423,8 +1748,18 @@ UsedDefaultChar);
case CP_UTF7: - DPRINT1("WideCharToMultiByte for CP_UTF7 is not implemented!\n"); - return 0; + if (DefaultChar != NULL || UsedDefaultChar != NULL) + { + SetLastError(ERROR_INVALID_PARAMETER); + return 0; + } + if (Flags) + { + SetLastError(ERROR_INVALID_FLAGS); + return 0; + } + return WideCharToUtf7(WideCharString, WideCharCount, + MultiByteString, MultiByteCount);
case CP_SYMBOL: if ((DefaultChar!=NULL) || (UsedDefaultChar!=NULL))
-
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