The Tor Browser / file comparison
comparison: intl/uconv/ucvcn/nsUnicodeToGB2312V2.cpp
intl/uconv/ucvcn/nsUnicodeToGB2312V2.cpp
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
equal
deleted
inserted
replaced
| -1:000000000000 | 0:52bec0262d91 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "nsUnicodeToGB2312V2.h" | |
| 7 #include "gbku.h" | |
| 8 | |
| 9 //---------------------------------------------------------------------- | |
| 10 // Class nsUnicodeToGB2312V2 [implementation] | |
| 11 nsUnicodeToGB2312V2::nsUnicodeToGB2312V2() : | |
| 12 nsEncoderSupport(2) | |
| 13 { | |
| 14 } | |
| 15 | |
| 16 NS_IMETHODIMP nsUnicodeToGB2312V2::ConvertNoBuff(const char16_t * aSrc, | |
| 17 int32_t * aSrcLength, | |
| 18 char * aDest, | |
| 19 int32_t * aDestLength) | |
| 20 { | |
| 21 int32_t iSrcLength = 0; | |
| 22 int32_t iDestLength = 0; | |
| 23 nsresult res = NS_OK; | |
| 24 | |
| 25 while (iSrcLength < *aSrcLength) | |
| 26 { | |
| 27 //if unicode's hi byte has something, it is not ASCII, must be a GB | |
| 28 if(IS_ASCII(*aSrc)) | |
| 29 { | |
| 30 // this is an ASCII | |
| 31 *aDest = CAST_UNICHAR_TO_CHAR(*aSrc); | |
| 32 aDest++; // increment 1 byte | |
| 33 iDestLength +=1; | |
| 34 } else { | |
| 35 char byte1, byte2; | |
| 36 if(mUtil.UnicodeToGBKChar(*aSrc, false, &byte1, &byte2)) | |
| 37 { | |
| 38 if(iDestLength+2 > *aDestLength) | |
| 39 { | |
| 40 res = NS_OK_UENC_MOREOUTPUT; | |
| 41 break; | |
| 42 } | |
| 43 aDest[0]=byte1; | |
| 44 aDest[1]=byte2; | |
| 45 aDest += 2; // increment 2 bytes | |
| 46 iDestLength +=2; // each GB char count as two in char* string | |
| 47 } else { | |
| 48 // cannot convert | |
| 49 res= NS_ERROR_UENC_NOMAPPING; | |
| 50 iSrcLength++; // include length of the unmapped character | |
| 51 break; | |
| 52 } | |
| 53 } | |
| 54 iSrcLength++ ; // each unicode char just count as one in char16_t* string | |
| 55 aSrc++; | |
| 56 if ( iDestLength >= (*aDestLength) && (iSrcLength < *aSrcLength )) | |
| 57 { | |
| 58 res = NS_OK_UENC_MOREOUTPUT; | |
| 59 break; | |
| 60 } | |
| 61 } | |
| 62 *aDestLength = iDestLength; | |
| 63 *aSrcLength = iSrcLength; | |
| 64 return res; | |
| 65 } |
