/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "nsJapaneseToUnicode.h" #include "nsUCSupport.h" #include "japanese.map" #include "nsICharsetConverterManager.h" #include "nsIServiceManager.h" #include "mozilla/Assertions.h" static NS_DEFINE_CID(kCharsetConverterManagerCID, NS_ICHARSETCONVERTERMANAGER_CID); #ifdef XP_OS2 // HTML5-incompliant behavior for OS/2, see bug 108136 // This is bogus. The right fix would be working around the font problems // in OS/2 gfx, since this "fix" introduces script-visible DOM differences // between the platforms. #define SJIS_INDEX gIBM943Index[0] #define JIS0208_INDEX gIBM943Index[1] #else // HTML5 says to use Windows-31J instead of the real Shift_JIS for decoding #define SJIS_INDEX gCP932Index[0] #define JIS0208_INDEX gCP932Index[1] #endif #define JIS0212_INDEX gJIS0212Index #define SJIS_UNMAPPED 0x30fb #define UNICODE_REPLACEMENT_CHARACTER 0xfffd #define IN_GR_RANGE(b) \ ((uint8_t(0xa1) <= uint8_t(b)) && (uint8_t(b) <= uint8_t(0xfe))) NS_IMETHODIMP nsShiftJISToUnicode::Convert( const char * aSrc, int32_t * aSrcLen, PRUnichar * aDest, int32_t * aDestLen) { static const uint8_t sbIdx[256] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x00 */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x08 */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x10 */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x18 */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x20 */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x28 */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x30 */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x38 */ 0, 1, 2, 3, 4, 5, 6, 7, /* 0x40 */ 8, 9, 10, 11, 12, 13, 14, 15, /* 0x48 */ 16, 17, 18, 19, 20, 21, 22, 23, /* 0x50 */ 24, 25, 26, 27, 28, 29, 30, 31, /* 0x58 */ 32, 33, 34, 35, 36, 37, 38, 39, /* 0x60 */ 40, 41, 42, 43, 44, 45, 46, 47, /* 0x68 */ 48, 49, 50, 51, 52, 53, 54, 55, /* 0x70 */ 56, 57, 58, 59, 60, 61, 62, 0xFF, /* 0x78 */ 63, 64, 65, 66, 67, 68, 69, 70, /* 0x80 */ 71, 72, 73, 74, 75, 76, 77, 78, /* 0x88 */ 79, 80, 81, 82, 83, 84, 85, 86, /* 0x90 */ 87, 88, 89, 90, 91, 92, 93, 94, /* 0x98 */ 95, 96, 97, 98, 99, 100, 101, 102, /* 0xa0 */ 103, 104, 105, 106, 107, 108, 109, 110, /* 0xa8 */ 111, 112, 113, 114, 115, 116, 117, 118, /* 0xb0 */ 119, 120, 121, 122, 123, 124, 125, 126, /* 0xb8 */ 127, 128, 129, 130, 131, 132, 133, 134, /* 0xc0 */ 135, 136, 137, 138, 139, 140, 141, 142, /* 0xc8 */ 143, 144, 145, 146, 147, 148, 149, 150, /* 0xd0 */ 151, 152, 153, 154, 155, 156, 157, 158, /* 0xd8 */ 159, 160, 161, 162, 163, 164, 165, 166, /* 0xe0 */ 167, 168, 169, 170, 171, 172, 173, 174, /* 0xe8 */ 175, 176, 177, 178, 179, 180, 181, 182, /* 0xf0 */ 183, 184, 185, 186, 187, 0xFF, 0xFF, 0xFF, /* 0xf8 */ }; const unsigned char* srcEnd = (unsigned char*)aSrc + *aSrcLen; const unsigned char* src =(unsigned char*) aSrc; PRUnichar* destEnd = aDest + *aDestLen; PRUnichar* dest = aDest; while (src < srcEnd) { switch (mState) { case 0: if (*src <= 0x80) { // ASCII *dest++ = (PRUnichar) *src; if (dest >= destEnd) { goto error1; } } else { mData = SJIS_INDEX[*src & 0x7F]; if (mData < 0xE000) { mState = 1; // two bytes } else if (mData < 0xF000) { mState = 2; // EUDC } else { *dest++ = mData; // JIS 0201 if (dest >= destEnd) { goto error1; } } } break; case 1: // Index to table { MOZ_ASSERT(mData < 0xE000); uint8_t off = sbIdx[*src]; // Error handling: in the case where the second octet is not in the // valid ranges 0x40-0x7E 0x80-0xFC, unconsume the invalid octet and // interpret it as the ASCII value. In the case where the second // octet is in the valid range but there is no mapping for the // 2-octet sequence, do not unconsume. if(0xFF == off) { src--; if (mErrBehavior == kOnError_Signal) goto error_invalidchar; *dest++ = UNICODE_REPLACEMENT_CHARACTER; } else { PRUnichar ch = gJapaneseMap[mData+off]; if(ch == 0xfffd) { if (mErrBehavior == kOnError_Signal) goto error_invalidchar; ch = SJIS_UNMAPPED; } *dest++ = ch; } mState = 0; if(dest >= destEnd) goto error1; } break; case 2: // EUDC { MOZ_ASSERT(0xE000 <= mData && mData < 0xF000); uint8_t off = sbIdx[*src]; // Error handling as in case 1 if(0xFF == off) { src--; if (mErrBehavior == kOnError_Signal) goto error_invalidchar; *dest++ = UNICODE_REPLACEMENT_CHARACTER; } else { *dest++ = mData + off; } mState = 0; if(dest >= destEnd) goto error1; } break; } src++; } *aDestLen = dest - aDest; return NS_OK; error_invalidchar: *aDestLen = dest - aDest; *aSrcLen = src - (const unsigned char*)aSrc; return NS_ERROR_ILLEGAL_INPUT; error1: *aDestLen = dest - aDest; src++; if ((mState == 0) && (src == srcEnd)) { return NS_OK; } *aSrcLen = src - (const unsigned char*)aSrc; return NS_OK_UDEC_MOREOUTPUT; } PRUnichar nsShiftJISToUnicode::GetCharacterForUnMapped() { return PRUnichar(SJIS_UNMAPPED); } NS_IMETHODIMP nsEUCJPToUnicodeV2::Convert( const char * aSrc, int32_t * aSrcLen, PRUnichar * aDest, int32_t * aDestLen) { static const uint8_t sbIdx[256] = { /* 0x0X */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x1X */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x2X */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x3X */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x4X */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x5X */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x6X */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x7X */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x8X */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x9X */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0xAX */ 0xFF, 0, 1, 2, 3, 4, 5, 6, 7, 8 , 9, 10, 11, 12, 13, 14, /* 0xBX */ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, /* 0xCX */ 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, /* 0xDX */ 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, /* 0xEX */ 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, /* 0xFX */ 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 0xFF, }; const unsigned char* srcEnd = (unsigned char*)aSrc + *aSrcLen; const unsigned char* src =(unsigned char*) aSrc; PRUnichar* destEnd = aDest + *aDestLen; PRUnichar* dest = aDest; while((src < srcEnd)) { switch(mState) { case 0: if(*src & 0x80 && *src != (unsigned char)0xa0) { mData = JIS0208_INDEX[*src & 0x7F]; if(mData != 0xFFFD ) { mState = 1; // two byte JIS0208 } else { if( 0x8e == *src) { // JIS 0201 mState = 2; // JIS0201 } else if(0x8f == *src) { // JIS 0212 mState = 3; // JIS0212 } else { // others if (mErrBehavior == kOnError_Signal) goto error_invalidchar; *dest++ = 0xFFFD; if(dest >= destEnd) goto error1; } } } else { // ASCII *dest++ = (PRUnichar) *src; if(dest >= destEnd) goto error1; } break; case 1: // Index to table { uint8_t off = sbIdx[*src]; if(0xFF == off) { if (mErrBehavior == kOnError_Signal) goto error_invalidchar; *dest++ = 0xFFFD; // if the first byte is valid for EUC-JP but the second // is not while being a valid US-ASCII, save it // instead of eating it up ! if ( (uint8_t)*src < (uint8_t)0x7f ) --src; } else { *dest++ = gJapaneseMap[mData+off]; } mState = 0; if(dest >= destEnd) goto error1; } break; case 2: // JIS 0201 { if((0xA1 <= *src) && (*src <= 0xDF)) { *dest++ = (0xFF61-0x00A1) + *src; } else { if (mErrBehavior == kOnError_Signal) goto error_invalidchar; *dest++ = 0xFFFD; // if 0x8e is not followed by a valid JIS X 0201 byte // but by a valid US-ASCII, save it instead of eating it up. if ( (uint8_t)*src < (uint8_t)0x7f ) --src; } mState = 0; if(dest >= destEnd) goto error1; } break; case 3: // JIS 0212 { if (IN_GR_RANGE(*src)) { mData = JIS0212_INDEX[*src & 0x7F]; if(mData != 0xFFFD ) { mState = 4; } else { mState = 5; // error } } else { // First "JIS 0212" byte is not in the valid GR range: save it if (mErrBehavior == kOnError_Signal) goto error_invalidchar; *dest++ = 0xFFFD; --src; mState = 0; if(dest >= destEnd) goto error1; } } break; case 4: { uint8_t off = sbIdx[*src]; if(0xFF != off) { *dest++ = gJapaneseMap[mData+off]; mState = 0; if(dest >= destEnd) goto error1; break; } // else fall through to error handler } case 5: // two bytes undefined { if (mErrBehavior == kOnError_Signal) goto error_invalidchar; *dest++ = 0xFFFD; // Undefined JIS 0212 two byte sequence. If the second byte is in // the valid range for a two byte sequence (0xa1 - 0xfe) consume // both bytes. Otherwise resynchronize on the second byte. if (!IN_GR_RANGE(*src)) --src; mState = 0; if(dest >= destEnd) goto error1; } break; } src++; } *aDestLen = dest - aDest; return NS_OK; error_invalidchar: *aDestLen = dest - aDest; *aSrcLen = src - (const unsigned char*)aSrc; return NS_ERROR_ILLEGAL_INPUT; error1: *aDestLen = dest - aDest; src++; if ((mState == 0) && (src == srcEnd)) { return NS_OK; } *aSrcLen = src - (const unsigned char*)aSrc; return NS_OK_UDEC_MOREOUTPUT; } NS_IMETHODIMP nsISO2022JPToUnicodeV2::Convert( const char * aSrc, int32_t * aSrcLen, PRUnichar * aDest, int32_t * aDestLen) { static const uint16_t fbIdx[128] = { /* 0x8X */ 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, /* 0x9X */ 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, 0xFFFD, /* 0xAX */ 0xFFFD, 0, 94, 94* 2, 94* 3, 94* 4, 94* 5, 94* 6, 94* 7, 94* 8 , 94* 9, 94*10, 94*11, 94*12, 94*13, 94*14, /* 0xBX */ 94*15, 94*16, 94*17, 94*18, 94*19, 94*20, 94*21, 94*22, 94*23, 94*24, 94*25, 94*26, 94*27, 94*28, 94*29, 94*30, /* 0xCX */ 94*31, 94*32, 94*33, 94*34, 94*35, 94*36, 94*37, 94*38, 94*39, 94*40, 94*41, 94*42, 94*43, 94*44, 94*45, 94*46, /* 0xDX */ 94*47, 94*48, 94*49, 94*50, 94*51, 94*52, 94*53, 94*54, 94*55, 94*56, 94*57, 94*58, 94*59, 94*60, 94*61, 94*62, /* 0xEX */ 94*63, 94*64, 94*65, 94*66, 94*67, 94*68, 94*69, 94*70, 94*71, 94*72, 94*73, 94*74, 94*75, 94*76, 94*77, 94*78, /* 0xFX */ 94*79, 94*80, 94*81, 94*82, 94*83, 94*84, 94*85, 94*86, 94*87, 94*88, 94*89, 94*90, 94*91, 94*92, 94*93, 0xFFFD, }; static const uint8_t sbIdx[256] = { /* 0x0X */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x1X */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x2X */ 0xFF, 0, 1, 2, 3, 4, 5, 6, 7, 8 , 9, 10, 11, 12, 13, 14, /* 0x3X */ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, /* 0x4X */ 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, /* 0x5X */ 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, /* 0x6X */ 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, /* 0x7X */ 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 0xFF, /* 0x8X */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0x9X */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0xAX */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0xBX */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0xCX */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0xDX */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0xEX */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* 0xFX */ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, }; const unsigned char* srcEnd = (unsigned char*)aSrc + *aSrcLen; const unsigned char* src =(unsigned char*) aSrc; PRUnichar* destEnd = aDest + *aDestLen; PRUnichar* dest = aDest; while((src < srcEnd)) { switch(mState) { case mState_ASCII: if(0x1b == *src) { mLastLegalState = mState; mState = mState_ESC; } else if(*src & 0x80) { if (mErrBehavior == kOnError_Signal) goto error3; if (CHECK_OVERRUN(dest, destEnd, 1)) goto error1; *dest++ = UNICODE_REPLACEMENT_CHARACTER; } else { if (CHECK_OVERRUN(dest, destEnd, 1)) goto error1; *dest++ = (PRUnichar) *src; } break; case mState_ESC: if( '(' == *src) { mState = mState_ESC_28; } else if ('$' == *src) { mState = mState_ESC_24; } else if ('.' == *src) { // for ISO-2022-JP-2 mState = mState_ESC_2e; } else if ('N' == *src) { // for ISO-2022-JP-2 mState = mState_ESC_4e; } else { if (CHECK_OVERRUN(dest, destEnd, 2)) goto error1; *dest++ = (PRUnichar) 0x1b; if(0x80 & *src) goto error2; *dest++ = (PRUnichar) *src; mState = mLastLegalState; } break; case mState_ESC_28: // ESC ( if( 'B' == *src) { mState = mState_ASCII; if (mRunLength == 0) { if (CHECK_OVERRUN(dest, destEnd, 1)) goto error1; *dest++ = 0xFFFD; } mRunLength = 0; } else if ('J' == *src) { mState = mState_JISX0201_1976Roman; if (mRunLength == 0 && mLastLegalState != mState_ASCII) { if (CHECK_OVERRUN(dest, destEnd, 1)) goto error1; if (mErrBehavior == kOnError_Signal) goto error2; *dest++ = 0xFFFD; } mRunLength = 0; } else if ('I' == *src) { mState = mState_JISX0201_1976Kana; mRunLength = 0; } else { if (CHECK_OVERRUN(dest, destEnd, 3)) goto error1; *dest++ = (PRUnichar) 0x1b; *dest++ = (PRUnichar) '('; if(0x80 & *src) goto error2; *dest++ = (PRUnichar) *src; mState = mLastLegalState; } break; case mState_ESC_24: // ESC $ if( '@' == *src) { mState = mState_JISX0208_1978; mRunLength = 0; } else if ('A' == *src) { mState = mState_GB2312_1980; mRunLength = 0; } else if ('B' == *src) { mState = mState_JISX0208_1983; mRunLength = 0; } else if ('(' == *src) { mState = mState_ESC_24_28; } else { if (CHECK_OVERRUN(dest, destEnd, 3)) goto error1; *dest++ = (PRUnichar) 0x1b; *dest++ = (PRUnichar) '$'; if(0x80 & *src) goto error2; *dest++ = (PRUnichar) *src; mState = mLastLegalState; } break; case mState_ESC_24_28: // ESC $ ( if( 'C' == *src) { mState = mState_KSC5601_1987; mRunLength = 0; } else if ('D' == *src) { mState = mState_JISX0212_1990; mRunLength = 0; } else { if (CHECK_OVERRUN(dest, destEnd, 4)) goto error1; *dest++ = (PRUnichar) 0x1b; *dest++ = (PRUnichar) '$'; *dest++ = (PRUnichar) '('; if(0x80 & *src) goto error2; *dest++ = (PRUnichar) *src; mState = mLastLegalState; } break; case mState_JISX0201_1976Roman: if(0x1b == *src) { mLastLegalState = mState; mState = mState_ESC; } else if(*src & 0x80) { goto error2; } else { // XXX We need to decide how to handle \ and ~ here // we may need a if statement here for '\' and '~' // to map them to Yen and Overbar if (CHECK_OVERRUN(dest, destEnd, 1)) goto error1; *dest++ = (PRUnichar) *src; ++mRunLength; } break; case mState_JISX0201_1976Kana: if(0x1b == *src) { mLastLegalState = mState; mState = mState_ESC; } else { if((0x21 <= *src) && (*src <= 0x5F)) { if (CHECK_OVERRUN(dest, destEnd, 1)) goto error1; *dest++ = (0xFF61-0x0021) + *src; ++mRunLength; } else { goto error2; } } break; case mState_JISX0208_1978: if(0x1b == *src) { mLastLegalState = mState; mState = mState_ESC; } else if(*src & 0x80) { mLastLegalState = mState; mState = mState_ERROR; } else { mData = JIS0208_INDEX[*src & 0x7F]; if(0xFFFD == mData) goto error2; mState = mState_JISX0208_1978_2ndbyte; } break; case mState_GB2312_1980: if(0x1b == *src) { mLastLegalState = mState; mState = mState_ESC; } else if(*src & 0x80) { mLastLegalState = mState; mState = mState_ERROR; } else { mData = fbIdx[*src & 0x7F]; if(0xFFFD == mData) goto error2; mState = mState_GB2312_1980_2ndbyte; } break; case mState_JISX0208_1983: if(0x1b == *src) { mLastLegalState = mState; mState = mState_ESC; } else if(*src & 0x80) { mLastLegalState = mState; mState = mState_ERROR; } else { mData = JIS0208_INDEX[*src & 0x7F]; if(0xFFFD == mData) goto error2; mState = mState_JISX0208_1983_2ndbyte; } break; case mState_KSC5601_1987: if(0x1b == *src) { mLastLegalState = mState; mState = mState_ESC; } else if(*src & 0x80) { mLastLegalState = mState; mState = mState_ERROR; } else { mData = fbIdx[*src & 0x7F]; if(0xFFFD == mData) goto error2; mState = mState_KSC5601_1987_2ndbyte; } break; case mState_JISX0212_1990: if(0x1b == *src) { mLastLegalState = mState; mState = mState_ESC; } else if(*src & 0x80) { mLastLegalState = mState; mState = mState_ERROR; } else { mData = JIS0212_INDEX[*src & 0x7F]; if(0xFFFD == mData) goto error2; mState = mState_JISX0212_1990_2ndbyte; } break; case mState_JISX0208_1978_2ndbyte: { uint8_t off = sbIdx[*src]; if(0xFF == off) { goto error2; } else { // XXX We need to map from JIS X 0208 1983 to 1987 // in the next line before pass to *dest++ if (CHECK_OVERRUN(dest, destEnd, 1)) goto error1; *dest++ = gJapaneseMap[mData+off]; ++mRunLength; } mState = mState_JISX0208_1978; } break; case mState_GB2312_1980_2ndbyte: { uint8_t off = sbIdx[*src]; if(0xFF == off) { goto error2; } else { if (!mGB2312Decoder) { // creating a delegate converter (GB2312) nsresult rv; nsCOMPtr ccm = do_GetService(kCharsetConverterManagerCID, &rv); if (NS_SUCCEEDED(rv)) { rv = ccm->GetUnicodeDecoderRaw("GB2312", &mGB2312Decoder); } } if (!mGB2312Decoder) {// failed creating a delegate converter goto error2; } else { if (CHECK_OVERRUN(dest, destEnd, 1)) goto error1; unsigned char gb[2]; PRUnichar uni; int32_t gbLen = 2, uniLen = 1; // ((mData/94)+0x21) is the original 1st byte. // *src is the present 2nd byte. // Put 2 bytes (one character) to gb[] with GB2312 encoding. gb[0] = ((mData / 94) + 0x21) | 0x80; gb[1] = *src | 0x80; // Convert GB2312 to unicode. mGB2312Decoder->Convert((const char *)gb, &gbLen, &uni, &uniLen); *dest++ = uni; ++mRunLength; } } mState = mState_GB2312_1980; } break; case mState_JISX0208_1983_2ndbyte: { uint8_t off = sbIdx[*src]; if(0xFF == off) { goto error2; } else { if (CHECK_OVERRUN(dest, destEnd, 1)) goto error1; *dest++ = gJapaneseMap[mData+off]; ++mRunLength; } mState = mState_JISX0208_1983; } break; case mState_KSC5601_1987_2ndbyte: { uint8_t off = sbIdx[*src]; if(0xFF == off) { goto error2; } else { if (!mEUCKRDecoder) { // creating a delegate converter (EUC-KR) nsresult rv; nsCOMPtr ccm = do_GetService(kCharsetConverterManagerCID, &rv); if (NS_SUCCEEDED(rv)) { rv = ccm->GetUnicodeDecoderRaw("EUC-KR", &mEUCKRDecoder); } } if (!mEUCKRDecoder) {// failed creating a delegate converter goto error2; } else { if (CHECK_OVERRUN(dest, destEnd, 1)) goto error1; unsigned char ksc[2]; PRUnichar uni; int32_t kscLen = 2, uniLen = 1; // ((mData/94)+0x21) is the original 1st byte. // *src is the present 2nd byte. // Put 2 bytes (one character) to ksc[] with EUC-KR encoding. ksc[0] = ((mData / 94) + 0x21) | 0x80; ksc[1] = *src | 0x80; // Convert EUC-KR to unicode. mEUCKRDecoder->Convert((const char *)ksc, &kscLen, &uni, &uniLen); *dest++ = uni; ++mRunLength; } } mState = mState_KSC5601_1987; } break; case mState_JISX0212_1990_2ndbyte: { uint8_t off = sbIdx[*src]; if(0xFF == off) { goto error2; } else { if (CHECK_OVERRUN(dest, destEnd, 1)) goto error1; *dest++ = gJapaneseMap[mData+off]; ++mRunLength; } mState = mState_JISX0212_1990; } break; case mState_ESC_2e: // ESC . // "ESC ." will designate 96 character set to G2. mState = mLastLegalState; if( 'A' == *src) { G2charset = G2_ISO88591; } else if ('F' == *src) { G2charset = G2_ISO88597; } else { if (CHECK_OVERRUN(dest, destEnd, 3)) goto error1; *dest++ = (PRUnichar) 0x1b; *dest++ = (PRUnichar) '.'; if(0x80 & *src) goto error2; *dest++ = (PRUnichar) *src; } break; case mState_ESC_4e: // ESC N // "ESC N" is the SS2 sequence, that invoke a G2 designated // character set. Since SS2 is effective only for next one // character, mState should be returned to the last status. mState = mLastLegalState; if((0x20 <= *src) && (*src <= 0x7F)) { if (G2_ISO88591 == G2charset) { if (CHECK_OVERRUN(dest, destEnd, 1)) goto error1; *dest++ = *src | 0x80; ++mRunLength; } else if (G2_ISO88597 == G2charset) { if (!mISO88597Decoder) { // creating a delegate converter (ISO-8859-7) nsresult rv; nsCOMPtr ccm = do_GetService(kCharsetConverterManagerCID, &rv); if (NS_SUCCEEDED(rv)) { rv = ccm->GetUnicodeDecoderRaw("ISO-8859-7", &mISO88597Decoder); } } if (!mISO88597Decoder) {// failed creating a delegate converter goto error2; } else { if (CHECK_OVERRUN(dest, destEnd, 1)) goto error1; // Put one character with ISO-8859-7 encoding. unsigned char gr = *src | 0x80; PRUnichar uni; int32_t grLen = 1, uniLen = 1; // Convert ISO-8859-7 to unicode. mISO88597Decoder->Convert((const char *)&gr, &grLen, &uni, &uniLen); *dest++ = uni; ++mRunLength; } } else {// G2charset is G2_unknown (not designated yet) goto error2; } } else { if (CHECK_OVERRUN(dest, destEnd, 3)) goto error1; *dest++ = (PRUnichar) 0x1b; *dest++ = (PRUnichar) 'N'; if(0x80 & *src) goto error2; *dest++ = (PRUnichar) *src; } break; case mState_ERROR: mState = mLastLegalState; mRunLength = 0; goto error2; break; } // switch src++; } *aDestLen = dest - aDest; return NS_OK; error1: *aDestLen = dest - aDest; *aSrcLen = src - (const unsigned char*)aSrc; return NS_OK_UDEC_MOREOUTPUT; error2: *aDestLen = dest - aDest; *aSrcLen = src - (const unsigned char*)aSrc; return NS_ERROR_UNEXPECTED; error3: *aDestLen = dest - aDest; *aSrcLen = src - (const unsigned char*)aSrc; return NS_ERROR_ILLEGAL_INPUT; }