static void ExportIPTC_LangAlt ( const SXMPMeta & xmp, IPTC_Manager * iptc, const char * xmpNS, const char * xmpProp, XMP_Uns8 id ) { std::string value; XMP_OptionBits xmpFlags; bool found = xmp.GetProperty ( xmpNS, xmpProp, 0, &xmpFlags ); if ( ! found ) { iptc->DeleteDataSet ( id ); return; } if ( ! XMP_ArrayIsAltText ( xmpFlags ) ) return; // ? Complain? Delete the DataSet? found = xmp.GetLocalizedText ( xmpNS, xmpProp, "", "x-default", 0, &value, 0 ); if ( ! found ) { iptc->DeleteDataSet ( id ); return; } NormalizeToCR ( &value ); size_t iptcCount = iptc->GetDataSet ( id, 0 ); if ( iptcCount > 1 ) iptc->DeleteDataSet ( id ); iptc->SetDataSet_UTF8 ( id, value.c_str(), (XMP_Uns32)value.size(), 0 ); // ! Don't append a 2nd DataSet! } // ExportIPTC_LangAlt
int XmpParser::decode( XmpData& xmpData, const std::string& xmpPacket) { try { xmpData.clear(); if (xmpPacket.empty()) return 0; if (!initialize()) { #ifndef SUPPRESS_WARNINGS std::cerr << "XMP Toolkit initialization failed.\n"; #endif return 2; } SXMPMeta meta(xmpPacket.data(), static_cast<XMP_StringLen>(xmpPacket.size())); SXMPIterator iter(meta); std::string schemaNs, propPath, propValue; XMP_OptionBits opt; while (iter.Next(&schemaNs, &propPath, &propValue, &opt)) { #ifdef DEBUG printNode(schemaNs, propPath, propValue, opt); #endif if (XMP_PropIsAlias(opt)) { throw Error(47, schemaNs, propPath, propValue); continue; } if (XMP_NodeIsSchema(opt)) { // Register unknown namespaces with Exiv2 // (Namespaces are automatically registered with the XMP Toolkit) if (XmpProperties::prefix(schemaNs).empty()) { std::string prefix; bool ret = meta.GetNamespacePrefix(schemaNs.c_str(), &prefix); if (!ret) throw Error(45, schemaNs); prefix = prefix.substr(0, prefix.size() - 1); XmpProperties::registerNs(schemaNs, prefix); } continue; } XmpKey::AutoPtr key = makeXmpKey(schemaNs, propPath); if (XMP_ArrayIsAltText(opt)) { // Read Lang Alt property LangAltValue::AutoPtr val(new LangAltValue); XMP_Index count = meta.CountArrayItems(schemaNs.c_str(), propPath.c_str()); while (count-- > 0) { // Get the text bool haveNext = iter.Next(&schemaNs, &propPath, &propValue, &opt); #ifdef DEBUG printNode(schemaNs, propPath, propValue, opt); #endif if ( !haveNext || !XMP_PropIsSimple(opt) || !XMP_PropHasLang(opt)) { throw Error(41, propPath, opt); } const std::string text = propValue; // Get the language qualifier haveNext = iter.Next(&schemaNs, &propPath, &propValue, &opt); #ifdef DEBUG printNode(schemaNs, propPath, propValue, opt); #endif if ( !haveNext || !XMP_PropIsSimple(opt) || !XMP_PropIsQualifier(opt) || propPath.substr(propPath.size() - 8, 8) != "xml:lang") { throw Error(42, propPath, opt); } val->value_[propValue] = text; } xmpData.add(*key.get(), val.get()); continue; } if ( XMP_PropIsArray(opt) && !XMP_PropHasQualifiers(opt) && !XMP_ArrayIsAltText(opt)) { // Check if all elements are simple bool simpleArray = true; SXMPIterator aIter(meta, schemaNs.c_str(), propPath.c_str()); std::string aSchemaNs, aPropPath, aPropValue; XMP_OptionBits aOpt; while (aIter.Next(&aSchemaNs, &aPropPath, &aPropValue, &aOpt)) { if (propPath == aPropPath) continue; if ( !XMP_PropIsSimple(aOpt) || XMP_PropHasQualifiers(aOpt) || XMP_PropIsQualifier(aOpt) || XMP_NodeIsSchema(aOpt) || XMP_PropIsAlias(aOpt)) { simpleArray = false; break; } } if (simpleArray) { // Read the array into an XmpArrayValue XmpArrayValue::AutoPtr val(new XmpArrayValue(arrayValueTypeId(opt))); XMP_Index count = meta.CountArrayItems(schemaNs.c_str(), propPath.c_str()); while (count-- > 0) { iter.Next(&schemaNs, &propPath, &propValue, &opt); #ifdef DEBUG printNode(schemaNs, propPath, propValue, opt); #endif val->read(propValue); } xmpData.add(*key.get(), val.get()); continue; } } XmpTextValue::AutoPtr val(new XmpTextValue); if ( XMP_PropIsStruct(opt) || XMP_PropIsArray(opt)) { // Create a metadatum with only XMP options val->setXmpArrayType(xmpArrayType(opt)); val->setXmpStruct(xmpStruct(opt)); xmpData.add(*key.get(), val.get()); continue; } if ( XMP_PropIsSimple(opt) || XMP_PropIsQualifier(opt)) { val->read(propValue); xmpData.add(*key.get(), val.get()); continue; } // Don't let any node go by unnoticed throw Error(39, key->key(), opt); } // iterate through all XMP nodes return 0; } catch (const XMP_Error& e) { #ifndef SUPPRESS_WARNINGS std::cerr << Error(40, e.GetID(), e.GetErrMsg()) << "\n"; #endif xmpData.clear(); return 3; }} // XmpParser::decode