The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/intl/uconv/ucvlatin/nsUnicodeToUTF16.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,106 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "nsUnicodeToUTF16.h"
    1.10 +#include <string.h>
    1.11 +
    1.12 +NS_IMETHODIMP nsUnicodeToUTF16BE::Convert(const char16_t * aSrc, int32_t * aSrcLength, 
    1.13 +      char * aDest, int32_t * aDestLength)
    1.14 +{
    1.15 +  int32_t srcInLen = *aSrcLength;
    1.16 +  int32_t destInLen = *aDestLength;
    1.17 +  int32_t srcOutLen = 0;
    1.18 +  int32_t destOutLen = 0;
    1.19 +  int32_t copyCharLen;
    1.20 +  char16_t *p = (char16_t*)aDest;
    1.21 + 
    1.22 +  // Handle BOM if necessary 
    1.23 +  if(0!=mBOM)
    1.24 +  {
    1.25 +     if(destInLen <2)
    1.26 +        goto needmoreoutput;
    1.27 +  
    1.28 +     *p++ = mBOM;
    1.29 +     mBOM = 0;
    1.30 +     destOutLen +=2;
    1.31 +  }
    1.32 +  // find out the length of copy 
    1.33 +
    1.34 +  copyCharLen = srcInLen;
    1.35 +  if(copyCharLen > (destInLen - destOutLen) / 2) {
    1.36 +     copyCharLen = (destInLen - destOutLen) / 2;
    1.37 +  }
    1.38 +
    1.39 +  // copy the data  by swaping 
    1.40 +  CopyData((char*)p , aSrc, copyCharLen );
    1.41 +
    1.42 +  srcOutLen += copyCharLen;
    1.43 +  destOutLen += copyCharLen * 2;
    1.44 +  if(copyCharLen < srcInLen)
    1.45 +      goto needmoreoutput;
    1.46 +  
    1.47 +  *aSrcLength = srcOutLen;
    1.48 +  *aDestLength = destOutLen;
    1.49 +  return NS_OK;
    1.50 +
    1.51 +needmoreoutput:
    1.52 +  *aSrcLength = srcOutLen;
    1.53 +  *aDestLength = destOutLen;
    1.54 +  return NS_OK_UENC_MOREOUTPUT;
    1.55 +}
    1.56 +
    1.57 +NS_IMETHODIMP nsUnicodeToUTF16BE::GetMaxLength(const char16_t * aSrc, int32_t aSrcLength, 
    1.58 +      int32_t * aDestLength)
    1.59 +{
    1.60 +  if(0 != mBOM)
    1.61 +    *aDestLength = 2*(aSrcLength+1);
    1.62 +  else 
    1.63 +    *aDestLength = 2*aSrcLength;
    1.64 +  return NS_OK_UENC_EXACTLENGTH;
    1.65 +}
    1.66 +
    1.67 +NS_IMETHODIMP nsUnicodeToUTF16BE::Finish(char * aDest, int32_t * aDestLength)
    1.68 +{
    1.69 +  if(0 != mBOM)
    1.70 +  {
    1.71 +     if(*aDestLength >= 2)
    1.72 +     {
    1.73 +        *((char16_t*)aDest)= mBOM;
    1.74 +        mBOM=0;
    1.75 +        *aDestLength = 2;
    1.76 +        return NS_OK;  
    1.77 +     } else {
    1.78 +        *aDestLength = 0;
    1.79 +        return NS_OK;  // xxx should be error
    1.80 +     }
    1.81 +  } else { 
    1.82 +     *aDestLength = 0;
    1.83 +     return NS_OK;
    1.84 +  } 
    1.85 +}
    1.86 +
    1.87 +NS_IMETHODIMP nsUnicodeToUTF16BE::Reset()
    1.88 +{
    1.89 +  mBOM = 0;
    1.90 +  return NS_OK;
    1.91 +}
    1.92 +
    1.93 +NS_IMETHODIMP nsUnicodeToUTF16BE::SetOutputErrorBehavior(int32_t aBehavior, 
    1.94 +      nsIUnicharEncoder * aEncoder, char16_t aChar)
    1.95 +{
    1.96 +  return NS_OK;
    1.97 +}
    1.98 +
    1.99 +NS_IMETHODIMP nsUnicodeToUTF16BE::CopyData(char* aDest, const char16_t* aSrc, int32_t aLen  )
   1.100 +{
   1.101 +  mozilla::NativeEndian::copyAndSwapToBigEndian(aDest, aSrc, aLen);
   1.102 +  return NS_OK;
   1.103 +}
   1.104 +
   1.105 +NS_IMETHODIMP nsUnicodeToUTF16LE::CopyData(char* aDest, const char16_t* aSrc, int32_t aLen  )
   1.106 +{
   1.107 +  mozilla::NativeEndian::copyAndSwapToLittleEndian(aDest, aSrc, aLen);
   1.108 +  return NS_OK;
   1.109 +}