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Remove TranslateUnicodeToOem and all related code #14745

Merged
merged 12 commits into from
Feb 28, 2023
Merged

Remove TranslateUnicodeToOem and all related code #14745

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7b5b96d
Excise TranslateUnicodeToOem and everything it touched
lhecker Jan 27, 2023
819febe
Fix build
lhecker Jan 27, 2023
ac1f371
Merge remote-tracking branch 'origin/main' into dev/lhecker/8000-Tran…
lhecker Feb 3, 2023
caba56d
Rewrite half InputBuffer
lhecker Feb 3, 2023
eac0aeb
Remove previously added code
lhecker Feb 3, 2023
005bc21
Address feedback
lhecker Feb 3, 2023
738ce5f
Simplify InputBuffer::Read and fix KeyEvent repeats
lhecker Feb 5, 2023
a0f1637
Fix zero initialization
lhecker Feb 5, 2023
d3ca747
Fix CRLF
lhecker Feb 6, 2023
3d14766
Merge remote-tracking branch 'origin/main' into dev/lhecker/8000-Tran…
lhecker Feb 28, 2023
7d9a213
Address feedback
lhecker Feb 28, 2023
ee2850d
Fix bad merge
lhecker Feb 28, 2023
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74 changes: 0 additions & 74 deletions src/host/dbcs.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -177,77 +177,3 @@ BOOL IsAvailableEastAsianCodePage(const UINT uiCodePage)
return false;
}
}

_Ret_range_(0, cbAnsi)
ULONG TranslateUnicodeToOem(_In_reads_(cchUnicode) PCWCHAR pwchUnicode,
const ULONG cchUnicode,
_Out_writes_bytes_(cbAnsi) PCHAR pchAnsi,
const ULONG cbAnsi,
_Out_ std::unique_ptr<IInputEvent>& partialEvent)
{
const auto& gci = ServiceLocator::LocateGlobals().getConsoleInformation();
const auto TmpUni = new (std::nothrow) WCHAR[cchUnicode];
if (TmpUni == nullptr)
{
return 0;
}

memcpy(TmpUni, pwchUnicode, cchUnicode * sizeof(WCHAR));

CHAR AsciiDbcs[2];
AsciiDbcs[1] = 0;

ULONG i, j;
for (i = 0, j = 0; i < cchUnicode && j < cbAnsi; i++, j++)
{
if (IsGlyphFullWidth(TmpUni[i]))
{
const auto NumBytes = sizeof(AsciiDbcs);
ConvertToOem(gci.CP, &TmpUni[i], 1, (LPSTR)&AsciiDbcs[0], NumBytes);
if (IsDBCSLeadByteConsole(AsciiDbcs[0], &gci.CPInfo))
{
if (j < cbAnsi - 1)
{ // -1 is safe DBCS in buffer
pchAnsi[j] = AsciiDbcs[0];
j++;
pchAnsi[j] = AsciiDbcs[1];
AsciiDbcs[1] = 0;
}
else
{
pchAnsi[j] = AsciiDbcs[0];
break;
}
}
else
{
pchAnsi[j] = AsciiDbcs[0];
AsciiDbcs[1] = 0;
}
}
else
{
ConvertToOem(gci.CP, &TmpUni[i], 1, &pchAnsi[j], 1);
}
}

if (AsciiDbcs[1])
{
try
{
auto keyEvent = std::make_unique<KeyEvent>();
if (keyEvent.get())
{
keyEvent->SetCharData(AsciiDbcs[1]);
partialEvent.reset(static_cast<IInputEvent* const>(keyEvent.release()));
}
}
catch (...)
{
LOG_HR(wil::ResultFromCaughtException());
}
}

delete[] TmpUni;
return j;
}
7 changes: 0 additions & 7 deletions src/host/dbcs.h
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Original file line number Diff line number Diff line change
Expand Up @@ -29,10 +29,3 @@ bool IsDBCSLeadByteConsole(const CHAR ch, const CPINFO* const pCPInfo);
BYTE CodePageToCharSet(const UINT uiCodePage);

BOOL IsAvailableEastAsianCodePage(const UINT uiCodePage);

_Ret_range_(0, cbAnsi)
ULONG TranslateUnicodeToOem(_In_reads_(cchUnicode) PCWCHAR pwchUnicode,
const ULONG cchUnicode,
_Out_writes_bytes_(cbAnsi) PCHAR pchAnsi,
const ULONG cbAnsi,
_Out_ std::unique_ptr<IInputEvent>& partialEvent);
68 changes: 7 additions & 61 deletions src/host/directio.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -169,75 +169,21 @@ void EventsToUnicode(_Inout_ std::deque<std::unique_ptr<IInputEvent>>& inEvents,
LockConsole();
auto Unlock = wil::scope_exit([&] { UnlockConsole(); });

std::deque<std::unique_ptr<IInputEvent>> partialEvents;
if (!IsUnicode)
{
if (inputBuffer.IsReadPartialByteSequenceAvailable())
{
partialEvents.push_back(inputBuffer.FetchReadPartialByteSequence(IsPeek));
}
}

size_t amountToRead;
if (FAILED(SizeTSub(eventReadCount, partialEvents.size(), &amountToRead)))
{
return STATUS_INTEGER_OVERFLOW;
}
std::deque<std::unique_ptr<IInputEvent>> readEvents;
auto Status = inputBuffer.Read(readEvents,
amountToRead,
IsPeek,
true,
IsUnicode,
false);
const auto Status = inputBuffer.Read(outEvents,
eventReadCount,
IsPeek,
true,
IsUnicode,
false);

if (CONSOLE_STATUS_WAIT == Status)
{
FAIL_FAST_IF(!(readEvents.empty()));
// If we're told to wait until later, move all of our context
// to the read data object and send it back up to the server.
waiter = std::make_unique<DirectReadData>(&inputBuffer,
&readHandleState,
eventReadCount,
std::move(partialEvents));
}
else if (NT_SUCCESS(Status))
{
// split key events to oem chars if necessary
if (!IsUnicode)
{
try
{
SplitToOem(readEvents);
}
CATCH_LOG();
}

// combine partial and readEvents
while (!partialEvents.empty())
{
readEvents.push_front(std::move(partialEvents.back()));
partialEvents.pop_back();
}

// move events over
for (size_t i = 0; i < eventReadCount; ++i)
{
if (readEvents.empty())
{
break;
}
outEvents.push_back(std::move(readEvents.front()));
readEvents.pop_front();
}

// store partial event if necessary
if (!readEvents.empty())
{
inputBuffer.StoreReadPartialByteSequence(std::move(readEvents.front()));
readEvents.pop_front();
FAIL_FAST_IF(!(readEvents.empty()));
}
std::move(outEvents));
}
return Status;
}
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