XMLTranscoder*
CygwinTransService::makeNewXMLTranscoder(const XMLCh* const encodingName
, XMLTransService::Codes& resValue
, const unsigned int blockSize
, MemoryManager* const manager)
{
const unsigned int upLen = 1024;
XMLCh upEncoding[upLen + 1];
//
// Get an upper cased copy of the encoding name, since we use a hash
// table and we store them all in upper case.
//
unsigned int itsLen = XMLString::stringLen( encodingName) + 1;
memcpy(
upEncoding
, encodingName
, sizeof(XMLCh) * ( ( itsLen > upLen) ? upLen : itsLen)
);
upEncoding[upLen] = 0; // necessary? terminating NUL should've copied.
upperCase(upEncoding);
// Now to try to find this guy in the CP map
CPMapEntry* theEntry = fCPMap->get(upEncoding);
// If not found, then return a null pointer
if (!theEntry)
{
resValue = XMLTransService::UnsupportedEncoding;
return 0;
}
// We found it, so return a Cygwin transcoder for this encoding
return new (manager) CygwinTranscoder
(
encodingName
, theEntry->getWinCP()
, theEntry->getIEEncoding()
, blockSize
, manager
);
}
XMLTranscoder*
Win32TransService::makeNewXMLTranscoder(const XMLCh* const encodingName
, XMLTransService::Codes& resValue
, const unsigned int blockSize
, MemoryManager* const manager)
{
const unsigned int upLen = 1024;
XMLCh upEncoding[upLen + 1];
//
// Get an upper cased copy of the encoding name, since we use a hash
// table and we store them all in upper case.
//
::wcsncpy(upEncoding, encodingName, upLen);
upEncoding[upLen] = 0;
_wcsupr(upEncoding);
// Now to try to find this guy in the CP map
CPMapEntry* theEntry = fCPMap->get(upEncoding);
// If not found, then return a null pointer
if (!theEntry)
{
resValue = XMLTransService::UnsupportedEncoding;
return 0;
}
// We found it, so return a Win32 transcoder for this encoding
return new (manager) Win32Transcoder
(
encodingName
, theEntry->getWinCP()
, theEntry->getIEEncoding()
, blockSize
, manager
);
}
// ---------------------------------------------------------------------------
// CygwinTransService: Constructors and Destructor
// ---------------------------------------------------------------------------
CygwinTransService::CygwinTransService()
{
fCPMap = new RefHashTableOf<CPMapEntry>(109);
//
// Open up the registry key that contains the info we want. Note that,
// if this key does not exist, then we just return. It will just mean
// that we don't have any support except for intrinsic encodings supported
// by the parser itself (and the LCP support of course.
//
HKEY charsetKey;
if (::RegOpenKeyExA
(
HKEY_CLASSES_ROOT
, "MIME\\Database\\Charset"
, 0
, KEY_READ
, &charsetKey))
{
return;
}
//
// Read in the registry keys that hold the code page ids. Skip for now
// those entries which indicate that they are aliases for some other
// encodings. We'll come back and do a second round for those and look
// up the original name and get the code page id.
//
// Note that we have to use A versions here so that this will run on
// 98, and transcode the strings to Unicode.
//
const unsigned int nameBufSz = 1024;
char nameBuf[nameBufSz + 1];
unsigned int subIndex = 0;
unsigned long theSize;
while (true)
{
// Get the name of the next key
theSize = nameBufSz;
if (::RegEnumKeyExA
(
charsetKey
, subIndex
, nameBuf
, &theSize
, 0, 0, 0, 0) == ERROR_NO_MORE_ITEMS)
{
break;
}
// Open this subkey
HKEY encodingKey;
if (::RegOpenKeyExA
(
charsetKey
, nameBuf
, 0
, KEY_READ
, &encodingKey))
{
XMLPlatformUtils::panic(PanicHandler::Panic_NoTransService);
}
//
// Lts see if its an alias. If so, then ignore it in this first
// loop. Else, we'll add a new entry for this one.
//
if (!isAlias(encodingKey))
{
//
// Lets get the two values out of this key that we are
// interested in. There should be a code page entry and an
// IE entry.
//
unsigned long theType;
unsigned int CPId;
unsigned int IEId;
theSize = sizeof(unsigned int);
if (::RegQueryValueExA
(
encodingKey
, "Codepage"
, 0
, &theType
, (unsigned char*)&CPId
, &theSize) != ERROR_SUCCESS)
{
XMLPlatformUtils::panic(PanicHandler::Panic_NoTransService);
}
//
// If this is not a valid Id, and it might not be because its
// not loaded on this system, then don't take it.
//
if (::IsValidCodePage(CPId))
{
theSize = sizeof(unsigned int);
if (::RegQueryValueExA
(
encodingKey
, "InternetEncoding"
, 0
, &theType
, (unsigned char*)&IEId
, &theSize) != ERROR_SUCCESS)
{
XMLPlatformUtils::panic(PanicHandler::Panic_NoTransService);
}
CPMapEntry* newEntry = new CPMapEntry(nameBuf, CPId, IEId);
fCPMap->put((void*)newEntry->getEncodingName(), newEntry);
}
}
// And now close the subkey handle and bump the subkey index
::RegCloseKey(encodingKey);
subIndex++;
}
//
// Now loop one more time and this time we do just the aliases. For
// each one we find, we look up that name in the map we've already
// built and add a new entry with this new name and the same id
// values we stored for the original.
//
subIndex = 0;
char aliasBuf[nameBufSz + 1];
while (true)
{
// Get the name of the next key
theSize = nameBufSz;
if (::RegEnumKeyExA
(
charsetKey
, subIndex
, nameBuf
, &theSize
, 0, 0, 0, 0) == ERROR_NO_MORE_ITEMS)
{
break;
}
// Open this subkey
HKEY encodingKey;
if (::RegOpenKeyExA
(
charsetKey
, nameBuf
, 0
, KEY_READ
, &encodingKey))
{
XMLPlatformUtils::panic(PanicHandler::Panic_NoTransService);
}
//
// If its an alias, look up the name in the map. If we find it,
// then construct a new one with the new name and the aliased
// ids.
//
if (isAlias(encodingKey, aliasBuf, nameBufSz))
{
const unsigned int srcLen = strlen(aliasBuf);
const unsigned int targetLen = ::MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, aliasBuf, srcLen, NULL, 0);
XMLCh* uniAlias = (XMLCh*) XMLPlatformUtils::fgMemoryManager->allocate
(
(targetLen + 1) * sizeof(XMLCh)
);//new XMLCh[targetLen + 1];
::MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, aliasBuf, srcLen, (LPWSTR)uniAlias, targetLen);
uniAlias[targetLen] = 0;
::LCMapStringW( gLocaleId, LCMAP_UPPERCASE, (LPCWSTR)uniAlias, targetLen, (LPWSTR)uniAlias, targetLen);
// Look up the alias name
CPMapEntry* aliasedEntry = fCPMap->get(uniAlias);
if (aliasedEntry)
{
//
// If the name is actually different, then take it.
// Otherwise, don't take it. They map aliases that are
// just different case.
//
if (auxCompareString(uniAlias, aliasedEntry->getEncodingName(), -1L, false))
{
CPMapEntry* newEntry = new CPMapEntry(uniAlias, aliasedEntry->getWinCP(), aliasedEntry->getIEEncoding());
fCPMap->put((void*)newEntry->getEncodingName(), newEntry);
}
}
XMLPlatformUtils::fgMemoryManager->deallocate(uniAlias);//delete [] uniAlias;
}
// And now close the subkey handle and bump the subkey index
::RegCloseKey(encodingKey);
subIndex++;
}
// And close the main key handle
::RegCloseKey(charsetKey);
}