tenfourfox/intl/uconv/nsReplacementToUnicode.cpp
Cameron Kaiser c9b2922b70 hello FPR
2017-04-19 00:56:45 -07:00

57 lines
1.3 KiB
C++

/* 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 "nsReplacementToUnicode.h"
nsReplacementToUnicode::nsReplacementToUnicode()
: mSeenByte(false)
{
}
NS_IMETHODIMP
nsReplacementToUnicode::Convert(const char* aSrc,
int32_t* aSrcLength,
char16_t* aDest,
int32_t* aDestLength)
{
if (mSeenByte || !(*aSrcLength)) {
*aDestLength = 0;
return NS_PARTIAL_MORE_INPUT;
}
if (mErrBehavior == kOnError_Signal) {
mSeenByte = true;
*aSrcLength = 0;
*aDestLength = 0;
return NS_ERROR_ILLEGAL_INPUT;
}
if (!(*aDestLength)) {
*aSrcLength = -1;
return NS_PARTIAL_MORE_OUTPUT;
}
mSeenByte = true;
*aDest = 0xFFFD;
*aDestLength = 1;
return NS_PARTIAL_MORE_INPUT;
}
NS_IMETHODIMP
nsReplacementToUnicode::GetMaxLength(const char* aSrc,
int32_t aSrcLength,
int32_t* aDestLength)
{
if (!mSeenByte && aSrcLength > 0) {
*aDestLength = 1;
} else {
*aDestLength = 0;
}
return NS_EXACT_LENGTH;
}
NS_IMETHODIMP
nsReplacementToUnicode::Reset()
{
mSeenByte = false;
return NS_OK;
}