void FormatPlugin::detectLanguage(Book &book, ZLInputStream &stream) {
std::string language = book.language();
if (!language.empty()) {
return;
}
PluginCollection &collection = PluginCollection::Instance();
if (language.empty()) {
language = collection.DefaultLanguageOption.value();
}
if (collection.LanguageAutoDetectOption.value() && stream.open()) {
static const int BUFSIZE = 65536;
char *buffer = new char[BUFSIZE];
const size_t size = stream.read(buffer, BUFSIZE);
stream.close();
shared_ptr<ZLLanguageDetector::LanguageInfo> info =
ZLLanguageDetector().findInfo(buffer, size);
delete[] buffer;
if (!info.isNull()) {
if (!info->Language.empty()) {
language = info->Language;
}
}
}
book.setLanguage(language);
}
void EReaderPlugin::readDocumentInternal(const ZLFile &file, BookModel &model, const PlainTextFormat &format, const std::string &encoding, ZLInputStream &stream) const {
if (!stream.open()) {
//TODO maybe anything else opens stream
return;
}
BookReader bookReader(model);
PmlBookReader pmlBookReader(bookReader, format, encoding);
bookReader.setMainTextModel();
pmlBookReader.readDocument(stream);
EReaderStream &estream = (EReaderStream&)stream;
const std::map<std::string, EReaderStream::ImageInfo>& imageIds = estream.images();
for(std::map<std::string, EReaderStream::ImageInfo>::const_iterator it = imageIds.begin(); it != imageIds.end(); ++it) {
const std::string id = it->first;
bookReader.addImage(id, new ZLFileImage(ZLFile(file.path(), it->second.Type), it->second.Offset, it->second.Size));
}
const std::map<std::string, unsigned short>& footnoteIds = estream.footnotes();
for(std::map<std::string, unsigned short>::const_iterator it = footnoteIds.begin(); it != footnoteIds.end(); ++it) {
const std::string id = it->first;
if (estream.switchStreamDestination(EReaderStream::FOOTNOTE, id)) {
bookReader.setFootnoteTextModel(id);
bookReader.addHyperlinkLabel(id);
pmlBookReader.readDocument(estream);
}
}
stream.close();
}
bool FormatPlugin::detectLanguage(Book &book, ZLInputStream &stream, const std::string &encoding, bool force) {
std::string language = book.language();
if (!force && !language.empty()) {
return true;
}
bool detected = false;
PluginCollection &collection = PluginCollection::Instance();
if (collection.isLanguageAutoDetectEnabled() && stream.open()) {
static const int BUFSIZE = 65536;
char *buffer = new char[BUFSIZE];
const std::size_t size = stream.read(buffer, BUFSIZE);
stream.close();
shared_ptr<ZLLanguageDetector::LanguageInfo> info =
ZLLanguageDetector().findInfoForEncoding(encoding, buffer, size, -20000);
delete[] buffer;
if (!info.isNull()) {
detected = true;
if (!info->Language.empty()) {
language = info->Language;
}
}
}
book.setLanguage(language);
return detected;
}
ZLZipEntryCache::ZLZipEntryCache(const std::string &containerName, ZLInputStream &containerStream) : myContainerName(containerName) {
//ZLLogger::Instance().println("ZipEntryCache", "creating cache for " + containerName);
myLastModifiedTime = ZLFile(containerName).lastModified();
if (!containerStream.open()) {
return;
}
ZLZipHeader header;
while (header.readFrom(containerStream)) {
Info *infoPtr = 0;
if (header.Signature == (unsigned long)ZLZipHeader::SignatureLocalFile) {
std::string entryName(header.NameLength, '\0');
if ((unsigned int)containerStream.read((char*)entryName.data(), header.NameLength) == header.NameLength) {
entryName = AndroidUtil::convertNonUtfString(entryName);
Info &info = myInfoMap[entryName];
info.Offset = containerStream.offset() + header.ExtraLength;
info.CompressionMethod = header.CompressionMethod;
info.CompressedSize = header.CompressedSize;
info.UncompressedSize = header.UncompressedSize;
infoPtr = &info;
}
}
ZLZipHeader::skipEntry(containerStream, header);
if (infoPtr != 0) {
infoPtr->UncompressedSize = header.UncompressedSize;
}
}
containerStream.close();
}
ZLZipEntryCache::ZLZipEntryCache(ZLInputStream &baseStream) {
if (!baseStream.open()) {
return;
}
ZLZipHeader header;
while (header.readFrom(baseStream)) {
Info *infoPtr = 0;
if (header.Signature == ZLZipHeader::SignatureLocalFile) {
std::string entryName(header.NameLength, '\0');
if ((unsigned int)baseStream.read((char*)entryName.data(), header.NameLength) == header.NameLength) {
Info &info = myInfoMap[entryName];
info.Offset = baseStream.offset() + header.ExtraLength;
info.CompressionMethod = header.CompressionMethod;
info.CompressedSize = header.CompressedSize;
info.UncompressedSize = header.UncompressedSize;
infoPtr = &info;
}
}
ZLZipHeader::skipEntry(baseStream, header);
if (infoPtr != 0) {
infoPtr->UncompressedSize = header.UncompressedSize;
}
}
baseStream.close();
}
void FormatPlugin::detectEncodingAndLanguage(Book &book, ZLInputStream &stream) {
std::string language = book.language();
std::string encoding = book.encoding();
if (!encoding.empty() && !language.empty()) {
return;
}
PluginCollection &collection = PluginCollection::Instance();
if (language.empty()) {
language = collection.DefaultLanguageOption.value();
}
if (encoding.empty()) {
encoding = collection.DefaultEncodingOption.value();
}
if (collection.LanguageAutoDetectOption.value() && stream.open()) {
static const int BUFSIZE = 65536;
char *buffer = new char[BUFSIZE];
const size_t size = stream.read(buffer, BUFSIZE);
stream.close();
shared_ptr<ZLLanguageDetector::LanguageInfo> info =
ZLLanguageDetector().findInfo(buffer, size);
delete[] buffer;
if (!info.isNull()) {
if (!info->Language.empty()) {
language = info->Language;
}
encoding = info->Encoding;
if ((encoding == "US-ASCII") || (encoding == "ISO-8859-1")) {
encoding = "windows-1252";
}
}
}
book.setEncoding(encoding);
book.setLanguage(language);
}
bool ZLZipHeader::readFrom(ZLInputStream &stream) {
size_t startOffset = stream.offset();
Signature = readLong(stream);
switch (Signature) {
default:
return false;
case SignatureLocalFile:
Version = readShort(stream);
Flags = readShort(stream);
CompressionMethod = readShort(stream);
ModificationTime = readShort(stream);
ModificationDate = readShort(stream);
CRC32 = readLong(stream);
CompressedSize = readLong(stream);
UncompressedSize = readLong(stream);
if (CompressionMethod == 0 && CompressedSize != UncompressedSize) {
ZLLogger::Instance().println("zip", "Different compressed & uncompressed size for stored entry; the uncompressed one will be used.");
CompressedSize = UncompressedSize;
}
NameLength = readShort(stream);
ExtraLength = readShort(stream);
return stream.offset() == startOffset + 30 && NameLength != 0;
case SignatureData:
CRC32 = readLong(stream);
CompressedSize = readLong(stream);
UncompressedSize = readLong(stream);
NameLength = 0;
ExtraLength = 0;
return stream.offset() == startOffset + 16;
}
}
void TxtReader::readDocument(ZLInputStream &stream) {
if (!stream.open()) {
return;
}
startDocumentHandler();
myCore->readDocument(stream);
endDocumentHandler();
stream.close();
}
void PalmDocPlugin::readDocumentInternal(const ZLFile &file, BookModel &model, const PlainTextFormat &format, const std::string &encoding, ZLInputStream &stream) const {
stream.open();
bool readAsPalmDoc = ((PalmDocStream&)stream).hasExtraSections();
stream.close();
if (readAsPalmDoc) {
MobipocketHtmlBookReader(file, model, format, encoding).readDocument(stream);
} else {
SimplePdbPlugin::readDocumentInternal(file, model, format, encoding, stream);
}
}
bool ZLZipHeader::readFrom(ZLInputStream &stream) {
std::size_t startOffset = stream.offset();
Signature = readLong(stream);
switch (Signature) {
default:
return stream.offset() == startOffset + 4;
case SignatureCentralDirectory:
{
Version = readLong(stream);
Flags = readShort(stream);
CompressionMethod = readShort(stream);
ModificationTime = readShort(stream);
ModificationDate = readShort(stream);
CRC32 = readLong(stream);
CompressedSize = readLong(stream);
UncompressedSize = readLong(stream);
if (CompressionMethod == 0 && CompressedSize != UncompressedSize) {
ZLLogger::Instance().println("zip", "Different compressed & uncompressed size for stored entry; the uncompressed one will be used.");
CompressedSize = UncompressedSize;
}
NameLength = readShort(stream);
ExtraLength = readShort(stream);
const unsigned short toSkip = readShort(stream);
stream.seek(12 + NameLength + ExtraLength + toSkip, false);
return stream.offset() == startOffset + 42 + NameLength + ExtraLength + toSkip;
}
case SignatureLocalFile:
Version = readShort(stream);
Flags = readShort(stream);
CompressionMethod = readShort(stream);
ModificationTime = readShort(stream);
ModificationDate = readShort(stream);
CRC32 = readLong(stream);
CompressedSize = readLong(stream);
UncompressedSize = readLong(stream);
if (CompressionMethod == 0 && CompressedSize != UncompressedSize) {
ZLLogger::Instance().println("zip", "Different compressed & uncompressed size for stored entry; the uncompressed one will be used.");
CompressedSize = UncompressedSize;
}
NameLength = readShort(stream);
ExtraLength = readShort(stream);
return stream.offset() == startOffset + 30 && NameLength != 0;
case SignatureEndOfCentralDirectory:
{
stream.seek(16, false);
const unsigned short toSkip = readShort(stream);
stream.seek(toSkip, false);
UncompressedSize = 0;
return stream.offset() == startOffset + 18 + toSkip;
}
case SignatureData:
CRC32 = readLong(stream);
CompressedSize = readLong(stream);
UncompressedSize = readLong(stream);
NameLength = 0;
ExtraLength = 0;
return stream.offset() == startOffset + 16;
}
}
void ZLZipHeader::skipEntry(ZLInputStream &stream, const ZLZipHeader &header) {
if (header.Flags & 0x08) {
stream.seek(header.ExtraLength);
ZLZDecompressor decompressor((size_t)-1);
while (decompressor.decompress(stream, 0, 2048) == 2048) {
}
stream.seek(16);
} else {
stream.seek(header.ExtraLength + header.CompressedSize);
}
}
void TxtReader::readDocument(ZLInputStream &stream) {
if (!stream.open()) {
return;
}
startDocumentHandler();
const size_t BUFSIZE = 2048;
char *buffer = new char[BUFSIZE];
std::string str;
size_t length;
do {
length = stream.read(buffer, BUFSIZE);
char *start = buffer;
const char *end = buffer + length;
for (char *ptr = start; ptr != end; ++ptr) {
if (*ptr == '\n' || *ptr == '\r') {
bool skipNewLine = false;
if (*ptr == '\r' && (ptr + 1) != end && *(ptr + 1) == '\n') {
skipNewLine = true;
*ptr = '\n';
}
if (start != ptr) {
str.erase();
myConverter->convert(str, start, ptr + 1);
characterDataHandler(str);
}
if (skipNewLine) {
++ptr;
}
start = ptr + 1;
newLineHandler();
} else if (isspace((unsigned char)*ptr)) {
if (*ptr != '\t') {
*ptr = ' ';
}
} else {
}
}
if (start != end) {
str.erase();
myConverter->convert(str, start, end);
characterDataHandler(str);
}
} while (length == BUFSIZE);
delete[] buffer;
endDocumentHandler();
stream.close();
}
void StyleSheetParser::parse(ZLInputStream &stream) {
if (stream.open()) {
char *buffer = new char[1024];
while (true) {
int len = stream.read(buffer, 1024);
if (len == 0) {
break;
}
parse(buffer, len);
}
delete[] buffer;
stream.close();
}
}
ZLTarHeaderCache::ZLTarHeaderCache(ZLInputStream &baseStream) {
if (!baseStream.open()) {
return;
}
ZLTarHeader header;
while (header.read(baseStream)) {
if (header.IsRegularFile) {
myHeaderMap[header.Name] = header;
}
baseStream.seek((header.Size + 0x1ff) & -0x200, false);
header.erase();
}
baseStream.close();
}
bool ZLZipHeader::readFrom(ZLInputStream &stream) {
size_t startOffset = stream.offset();
Signature = readLong(stream);
Version = readShort(stream);
Flags = readShort(stream);
CompressionMethod = readShort(stream);
ModificationTime = readShort(stream);
ModificationDate = readShort(stream);
CRC32 = readLong(stream);
CompressedSize = readLong(stream);
UncompressedSize = readLong(stream);
NameLength = readShort(stream);
ExtraLength = readShort(stream);
return (Signature == 0x04034B50) && (stream.offset() == startOffset + 30) && (NameLength != 0);
}
size_t HuffDecompressor::decompress(ZLInputStream &stream, char *targetBuffer, size_t compressedSize, size_t maxUncompressedSize) {
if (compressedSize == 0 || myErrorCode == ERROR_CORRUPTED_FILE) {
return 0;
}
if (targetBuffer != 0) {
unsigned char *sourceBuffer = new unsigned char[compressedSize];
myTargetBuffer = targetBuffer;
myTargetBufferEnd = targetBuffer + maxUncompressedSize;
myTargetBufferPtr = targetBuffer;
if (stream.read((char*)sourceBuffer, compressedSize) == compressedSize) {
const size_t trailSize = sizeOfTrailingEntries(sourceBuffer, compressedSize);
if (trailSize < compressedSize) {
bitsDecompress(BitReader(sourceBuffer, compressedSize - trailSize));
} else {
myErrorCode = ERROR_CORRUPTED_FILE;
}
}
delete[] sourceBuffer;
} else {
myTargetBuffer = 0;
myTargetBufferEnd = 0;
myTargetBufferPtr = 0;
}
return myTargetBufferPtr - myTargetBuffer;
}
size_t DocDecompressor::decompress(ZLInputStream &stream, char *targetBuffer, size_t compressedSize, size_t maxUncompressedSize) {
const unsigned char *sourceBuffer = new unsigned char[compressedSize];
const unsigned char *sourceBufferEnd = sourceBuffer + compressedSize;
const unsigned char *sourcePtr = sourceBuffer;
unsigned char *targetBufferEnd = (unsigned char*)targetBuffer + maxUncompressedSize;
unsigned char *targetPtr = (unsigned char*)targetBuffer;
if (stream.read((char*)sourceBuffer, compressedSize) == compressedSize) {
unsigned char token;
unsigned short copyLength, N, shift;
unsigned char *shifted;
while ((sourcePtr < sourceBufferEnd) && (targetPtr < targetBufferEnd)) {
token = *(sourcePtr++);
switch (TOKEN_CODE[token]) {
case 0:
*(targetPtr++) = token;
break;
case 1:
if ((sourcePtr + token > sourceBufferEnd) || (targetPtr + token > targetBufferEnd)) {
goto endOfLoop;
}
memcpy(targetPtr, sourcePtr, token);
sourcePtr += token;
targetPtr += token;
break;
case 2:
if (targetPtr + 2 > targetBufferEnd) {
goto endOfLoop;
}
*(targetPtr++) = ' ';
*(targetPtr++) = token ^ 0x80;
break;
case 3:
if (sourcePtr + 1 > sourceBufferEnd) {
goto endOfLoop;
}
N = 256 * token + *(sourcePtr++);
copyLength = (N & 7) + 3;
if (targetPtr + copyLength > targetBufferEnd) {
goto endOfLoop;
}
shift = (N & 0x3fff) / 8;
shifted = targetPtr - shift;
if ((char*)shifted >= targetBuffer) {
for (short i = 0; i < copyLength; i++) {
*(targetPtr++) = *(shifted++);
}
}
break;
}
}
}
endOfLoop:
delete[] sourceBuffer;
return targetPtr - (unsigned char*)targetBuffer;
}
static unsigned short readUnsignedWord(ZLInputStream &stream) {
unsigned char buffer[2];
stream.read((char*)buffer, 2);
unsigned short result = buffer[1];
result = result << 8;
result += buffer[0];
return result;
}
void PdbUtil::readUnsignedLongLE(ZLInputStream &stream, unsigned long &N) {
unsigned char data[4];
stream.read((char*)data, 4);
N = (((unsigned long)data[3]) << 24) +
(((unsigned long)data[2]) << 16) +
(((unsigned long)data[1]) << 8) +
(unsigned long)data[0];
}
void PdbUtil::readUnsignedShort(ZLInputStream &stream, unsigned short &N) {
unsigned char data[2];
stream.read((char*)data, 2);
N = (((unsigned short)data[0]) << 8) + data[1];
/*
stream.read((char*)&N + 1, 1);
stream.read((char*)&N, 1);
*/
}
bool PPLBookReader::readDocument(ZLInputStream &stream) {
std::cout<<"PPLBookReader::readDocument\n";
if (!stream.open()) {
return false;
}
myModelReader.setMainTextModel();
myModelReader.pushKind(REGULAR);
myCurrentParagraph.erase();
myEmptyLineCounter = 0;
// "PPL\r\n"
stream.seek(5);
size_t size;
do {
size = stream.read(myBuffer, BUFFER_SIZE);
myBuffer[size] = '\0';
const char *start = myBuffer;
const char *end = myBuffer + size;
const char *eol;
do {
eol = strchr(start, '\n');
if (eol != 0) {
if (start < eol) {
myConverter->convert(myCurrentParagraph, start, eol);
}
addParagraph();
start = eol + 1;
} else {
if (start < end) {
myConverter->convert(myCurrentParagraph, start, end);
}
}
} while (eol != 0);
} while (size == BUFFER_SIZE);
addParagraph();
stream.close();
return true;
}
unsigned long ZLZipHeader::readLong(ZLInputStream &stream) {
char buffer[4];
stream.read(buffer, 4);
return
((((unsigned long)buffer[3]) & 0xFF) << 24) +
((((unsigned long)buffer[2]) & 0xFF) << 16) +
((((unsigned long)buffer[1]) & 0xFF) << 8) +
((unsigned long)buffer[0] & 0xFF);
}
static unsigned long long readEncodedInteger(ZLInputStream &stream) {
unsigned long long result = 0;
char part;
do {
result = result << 7;
stream.read(&part, 1);
result += part & 0x7F;
} while (part & -0x80);
return result;
}
void ZLZipHeader::skipEntry(ZLInputStream &stream, ZLZipHeader &header) {
switch (header.Signature) {
default:
break;
case SignatureLocalFile:
if ((header.Flags & 0x08) == 0x08 && header.CompressionMethod != 0) {
stream.seek(header.ExtraLength, false);
ZLZDecompressor decompressor((std::size_t)-1);
std::size_t size;
do {
size = decompressor.decompress(stream, 0, 2048);
header.UncompressedSize += size;
} while (size == 2048);
//stream.seek(16, false);
} else {
stream.seek(header.ExtraLength + header.CompressedSize, false);
}
break;
}
}
static std::string readNTString(ZLInputStream &stream) {
std::string s;
char c;
while (stream.read(&c, 1) == 1) {
if (c == '\0') {
break;
} else {
s += c;
}
}
return CHMReferenceCollection::fullReference("/", s);
}
size_t ZLZDecompressor::decompress(ZLInputStream &stream, char *buffer, size_t maxSize) {
while ((myBuffer.length() < maxSize) && (myAvailableSize > 0)) {
size_t size = std::min(myAvailableSize, (size_t)IN_BUFFER_SIZE);
myZStream->next_in = (Bytef*)myInBuffer;
myZStream->avail_in = stream.read(myInBuffer, size);
if (myZStream->avail_in == size) {
myAvailableSize -= size;
} else {
myAvailableSize = 0;
}
while (myZStream->avail_in == 0) {
break;
}
while (myZStream->avail_in > 0) {
myZStream->avail_out = OUT_BUFFER_SIZE;
myZStream->next_out = (Bytef*)myOutBuffer;
int code = ::inflate(myZStream, Z_SYNC_FLUSH);
if ((code != Z_OK) && (code != Z_STREAM_END)) {
break;
}
if (OUT_BUFFER_SIZE == myZStream->avail_out) {
break;
}
myBuffer.append(myOutBuffer, OUT_BUFFER_SIZE - myZStream->avail_out);
if (code == Z_STREAM_END) {
myAvailableSize = 0;
stream.seek(0 - myZStream->avail_in, false);
break;
}
}
}
size_t realSize = std::min(maxSize, myBuffer.length());
if (buffer != 0) {
memcpy(buffer, myBuffer.data(), realSize);
}
myBuffer.erase(0, realSize);
return realSize;
}
bool PdfBookReader::readReferenceTable(ZLInputStream &stream, int xrefOffset) {
while (true) {
stream.seek(xrefOffset, true);
readLine(stream, myBuffer);
stripBuffer(myBuffer);
if (myBuffer != "xref") {
return false;
}
while (true) {
readLine(stream, myBuffer);
stripBuffer(myBuffer);
if (myBuffer == "trailer") {
break;
}
const int index = myBuffer.find(' ');
const int start = atoi(myBuffer.c_str());
const int len = atoi(myBuffer.c_str() + index + 1);
for (int i = 0; i < len; ++i) {
readLine(stream, myBuffer);
stripBuffer(myBuffer);
if (myBuffer.length() != 18) {
return false;
}
const int objectOffset = atoi(myBuffer.c_str());
const int objectGeneration = atoi(myBuffer.c_str() + 11);
const bool objectInUse = myBuffer[17] == 'n';
if (objectInUse) {
myObjectLocationMap[std::pair<int,int>(start + i, objectGeneration)] = objectOffset;
}
}
}
char ch = 0;
shared_ptr<PdfObject> trailer = PdfObject::readObject(stream, ch);
if (trailer.isNull() || (trailer->type() != PdfObject::DICTIONARY)) {
return false;
}
if (myTrailer.isNull()) {
myTrailer = trailer;
}
PdfDictionaryObject &trailerDictionary = (PdfDictionaryObject&)*trailer;
shared_ptr<PdfObject> previous = trailerDictionary["Prev"];
if (previous.isNull()) {
return true;
}
if (previous->type() != PdfObject::INTEGER_NUMBER) {
return false;
}
xrefOffset = ((PdfIntegerObject&)*previous).value();
}
}
void PdbUtil::readUnsignedLong(ZLInputStream &stream, unsigned long &N) {
unsigned char data[4];
stream.read((char*)data, 4);
N = (((unsigned long)data[0]) << 24) +
(((unsigned long)data[1]) << 16) +
(((unsigned long)data[2]) << 8) +
(unsigned long)data[3];
/*
stream.read((char*)&N + 3, 1);
stream.read((char*)&N + 2, 1);
stream.read((char*)&N + 1, 1);
stream.read((char*)&N, 1);
*/
}
void ZLZipHeader::skipEntry(ZLInputStream &stream, ZLZipHeader &header) {
switch (header.Signature) {
default:
break;
case SignatureLocalFile:
if (header.Flags & 0x08) {
stream.seek(header.ExtraLength, false);
AppLog("ZLZDecompressor decompressor %d", (size_t)-1);
ZLZDecompressor decompressor((size_t)-1);
size_t size;
do {
//AppLog("ZLZipHeader::skipEntry 1");
size = decompressor.decompress(stream, 0, BUFFER_SIZE);
//AppLog("decompress size=%d",size);
header.UncompressedSize += size;
} while (size == BUFFER_SIZE);
AppLog("header.UncompressedSize %d",header.UncompressedSize);
//stream.seek(16, false);
} else {
stream.seek(header.ExtraLength + header.CompressedSize, false);
}
break;
}
}
bool FormatPlugin::detectEncodingAndLanguage(Book &book, ZLInputStream &stream, bool force) {
std::string language = book.language();
std::string encoding = book.encoding();
if (!force && !encoding.empty()) {
return true;
}
bool detected = false;
PluginCollection &collection = PluginCollection::Instance();
if (encoding.empty()) {
encoding = ZLEncodingConverter::UTF8;
}
if (collection.isLanguageAutoDetectEnabled() && stream.open()) {
static const int BUFSIZE = 65536;
char *buffer = new char[BUFSIZE];
const std::size_t size = stream.read(buffer, BUFSIZE);
stream.close();
shared_ptr<ZLLanguageDetector::LanguageInfo> info = ZLLanguageDetector().findInfo(buffer, size);
delete[] buffer;
if (!info.isNull()) {
detected = true;
if (!info->Language.empty()) {
language = info->Language;
}
encoding = info->Encoding;
if (encoding == ZLEncodingConverter::ASCII || encoding == "iso-8859-1") {
encoding = "windows-1252";
}
}
}
book.setEncoding(encoding);
book.setLanguage(language);
return detected;
}