DataBuf IptcParser::encode(const IptcData& iptcData)
{
DataBuf buf(iptcData.size());
byte *pWrite = buf.pData_;
IptcData::const_iterator iter = iptcData.begin();
IptcData::const_iterator end = iptcData.end();
for ( ; iter != end; ++iter) {
// marker, record Id, dataset num
*pWrite++ = marker_;
*pWrite++ = static_cast<byte>(iter->record());
*pWrite++ = static_cast<byte>(iter->tag());
// extended or standard dataset?
long dataSize = iter->size();
if (dataSize > 32767) {
// always use 4 bytes for extended length
uint16_t sizeOfSize = 4 | 0x8000;
us2Data(pWrite, sizeOfSize, bigEndian);
pWrite += 2;
ul2Data(pWrite, dataSize, bigEndian);
pWrite += 4;
}
else {
us2Data(pWrite, static_cast<uint16_t>(dataSize), bigEndian);
pWrite += 2;
}
pWrite += iter->value().copy(pWrite, bigEndian);
}
return buf;
} // IptcParser::encode
void processRemove(const std::string& line, int num, IptcData &iptcData)
{
std::string::size_type keyStart = line.find_first_not_of(" \t", 1);
if (keyStart == std::string::npos) {
std::ostringstream os;
os << "Invalid \'r\' command at line " << num;
throw Error(1, os.str());
}
const std::string key( line.substr(keyStart) );
IptcKey iptcKey(key);
IptcData::iterator iter = iptcData.findKey(iptcKey);
if (iter != iptcData.end()) {
iptcData.erase(iter);
}
}
void processRemove(const std::string& line, int num)
{
std::string::size_type keyStart = line.find_first_not_of(" \t", 1);
if (keyStart == std::string::npos) {
std::ostringstream os;
os << "Invalid \'r\' command at line " << num;
throw Error(os.str());
}
const std::string key( line.substr(keyStart) );
std::pair<uint16, uint16> p = IptcDataSets::decomposeKey(key);
if (p.first == 0xffff) throw Error("Invalid key" + key);
if (p.second == IptcDataSets::invalidRecord) throw Error("Invalid key" + key);
IptcData::iterator iter = g_iptcData.findId(p.first, p.second);
if (iter != g_iptcData.end()) {
g_iptcData.erase(iter);
}
}
void processModify(const std::string& line, int num)
{
std::string::size_type keyStart = line.find_first_not_of(" \t", 1);
std::string::size_type keyEnd = line.find_first_of(" \t", keyStart+1);
std::string::size_type dataStart = line.find_first_not_of(" \t", keyEnd+1);
if (keyStart == std::string::npos ||
keyEnd == std::string::npos ||
dataStart == std::string::npos) {
std::ostringstream os;
os << "Invalid \'m\' command at line " << num;
throw Error(os.str());
}
std::string key(line.substr(keyStart, keyEnd-keyStart));
std::pair<uint16, uint16> p = IptcDataSets::decomposeKey(key);
if (p.first == 0xffff) throw Error("Invalid key" + key);
if (p.second == IptcDataSets::invalidRecord) throw Error("Invalid key" + key);
std::string data(line.substr(dataStart));
// if data starts and ends with quotes, remove them
if (data.at(0) == '\"' && data.at(data.size()-1) == '\"') {
data = data.substr(1, data.size()-2);
}
TypeId type = IptcDataSets::dataSetType(p.first, p.second);
Value *val = Value::create(type);
val->read(data);
IptcData::iterator iter = g_iptcData.findId(p.first, p.second);
if (iter != g_iptcData.end()) {
iter->setValue(val);
}
else {
int rc = g_iptcData.add(IptcKey(key), val);
if (rc) {
std::string error = IptcData::strError(rc, "Input file");
throw Error(error);
}
}
}
DataBuf IptcParser::encode(const IptcData& iptcData)
{
DataBuf buf(iptcData.size());
byte *pWrite = buf.pData_;
// Copy the iptc data sets and sort them by record but preserve the order of datasets
IptcMetadata sortedIptcData;
std::copy(iptcData.begin(), iptcData.end(), std::back_inserter(sortedIptcData));
std::stable_sort(sortedIptcData.begin(), sortedIptcData.end(), cmpIptcdataByRecord);
IptcData::const_iterator iter = sortedIptcData.begin();
IptcData::const_iterator end = sortedIptcData.end();
for ( ; iter != end; ++iter) {
// marker, record Id, dataset num
*pWrite++ = marker_;
*pWrite++ = static_cast<byte>(iter->record());
*pWrite++ = static_cast<byte>(iter->tag());
// extended or standard dataset?
long dataSize = iter->size();
if (dataSize > 32767) {
// always use 4 bytes for extended length
uint16_t sizeOfSize = 4 | 0x8000;
us2Data(pWrite, sizeOfSize, bigEndian);
pWrite += 2;
ul2Data(pWrite, dataSize, bigEndian);
pWrite += 4;
}
else {
us2Data(pWrite, static_cast<uint16_t>(dataSize), bigEndian);
pWrite += 2;
}
pWrite += iter->value().copy(pWrite, bigEndian);
}
return buf;
} // IptcParser::encode
void processModify(const std::string& line, int num, IptcData &iptcData)
{
std::string::size_type keyStart = line.find_first_not_of(" \t", 1);
std::string::size_type keyEnd = line.find_first_of(" \t", keyStart+1);
std::string::size_type dataStart = line.find_first_not_of(" \t", keyEnd+1);
if (keyStart == std::string::npos ||
keyEnd == std::string::npos ||
dataStart == std::string::npos) {
std::ostringstream os;
os << "Invalid \'m\' command at line " << num;
throw Error(1, os.str());
}
std::string key(line.substr(keyStart, keyEnd-keyStart));
IptcKey iptcKey(key);
std::string data(line.substr(dataStart));
// if data starts and ends with quotes, remove them
if (data.at(0) == '\"' && data.at(data.size()-1) == '\"') {
data = data.substr(1, data.size()-2);
}
TypeId type = IptcDataSets::dataSetType(iptcKey.tag(), iptcKey.record());
Value::AutoPtr value = Value::create(type);
value->read(data);
IptcData::iterator iter = iptcData.findKey(iptcKey);
if (iter != iptcData.end()) {
iter->setValue(value.get());
}
else {
int rc = iptcData.add(iptcKey, value.get());
if (rc) {
throw Error(1, "Iptc dataset already exists and is not repeatable");
}
}
}