File indexing completed on 2024-05-12 05:09:22

0001 /***************************************************************************
0002     Copyright (C) 2003-2009 Robby Stephenson <robby@periapsis.org>
0003  ***************************************************************************/
0004 
0005 /***************************************************************************
0006  *                                                                         *
0007  *   This program is free software; you can redistribute it and/or         *
0008  *   modify it under the terms of the GNU General Public License as        *
0009  *   published by the Free Software Foundation; either version 2 of        *
0010  *   the License or (at your option) version 3 or any later version        *
0011  *   accepted by the membership of KDE e.V. (or its successor approved     *
0012  *   by the membership of KDE e.V.), which shall act as a proxy            *
0013  *   defined in Section 14 of version 3 of the license.                    *
0014  *                                                                         *
0015  *   This program is distributed in the hope that it will be useful,       *
0016  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
0017  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
0018  *   GNU General Public License for more details.                          *
0019  *                                                                         *
0020  *   You should have received a copy of the GNU General Public License     *
0021  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
0022  *                                                                         *
0023  ***************************************************************************/
0024 
0025 #include "bibtexcollection.h"
0026 #include "../entrycomparison.h"
0027 #include "../utils/bibtexhandler.h"
0028 #include "../fieldformat.h"
0029 #include "../tellico_debug.h"
0030 
0031 #include <KLocalizedString>
0032 #include <KStringHandler>
0033 
0034 using namespace Tellico;
0035 using Tellico::Data::BibtexCollection;
0036 
0037 namespace {
0038   static const char* bibtex_general = I18N_NOOP("General");
0039   static const char* bibtex_publishing = I18N_NOOP("Publishing");
0040   static const char* bibtex_misc = I18N_NOOP("Miscellaneous");
0041 }
0042 
0043 BibtexCollection::BibtexCollection(bool addDefaultFields_, const QString& title_)
0044    : Collection(title_.isEmpty() ? i18n("Bibliography") : title_) {
0045   setDefaultGroupField(QStringLiteral("author"));
0046   if(addDefaultFields_) {
0047     addFields(defaultFields());
0048   }
0049 
0050   // Bibtex has some default macros for the months
0051   addMacro(QStringLiteral("jan"), QString());
0052   addMacro(QStringLiteral("feb"), QString());
0053   addMacro(QStringLiteral("mar"), QString());
0054   addMacro(QStringLiteral("apr"), QString());
0055   addMacro(QStringLiteral("may"), QString());
0056   addMacro(QStringLiteral("jun"), QString());
0057   addMacro(QStringLiteral("jul"), QString());
0058   addMacro(QStringLiteral("aug"), QString());
0059   addMacro(QStringLiteral("sep"), QString());
0060   addMacro(QStringLiteral("oct"), QString());
0061   addMacro(QStringLiteral("nov"), QString());
0062   addMacro(QStringLiteral("dec"), QString());
0063 }
0064 
0065 Tellico::Data::FieldList BibtexCollection::defaultFields() {
0066   FieldList list;
0067   FieldPtr field;
0068 
0069   const QString bibtex = QStringLiteral("bibtex");
0070 
0071 /******************* General ****************************/
0072 
0073   field = Field::createDefaultField(Field::TitleField);
0074   field->setProperty(bibtex, QStringLiteral("title"));
0075   list.append(field);
0076 
0077   QStringList types;
0078   types << QStringLiteral("article") << QStringLiteral("book")
0079         << QStringLiteral("booklet") << QStringLiteral("inbook")
0080         << QStringLiteral("incollection") << QStringLiteral("inproceedings")
0081         << QStringLiteral("manual") << QStringLiteral("mastersthesis")
0082         << QStringLiteral("misc") << QStringLiteral("phdthesis")
0083         << QStringLiteral("proceedings") << QStringLiteral("techreport")
0084         << QStringLiteral("unpublished") << QStringLiteral("periodical")
0085         << QStringLiteral("conference");
0086   field = new Field(QStringLiteral("entry-type"), i18n("Entry Type"), types);
0087   field->setProperty(bibtex, QStringLiteral("entry-type"));
0088   field->setCategory(i18n(bibtex_general));
0089   field->setFlags(Field::AllowGrouped | Field::NoDelete);
0090   field->setDescription(i18n("These entry types are specific to bibtex. See the bibtex documentation."));
0091   list.append(field);
0092 
0093   field = new Field(QStringLiteral("author"), i18n("Author"));
0094   field->setProperty(bibtex, QStringLiteral("author"));
0095   field->setCategory(i18n(bibtex_general));
0096   field->setFlags(Field::AllowCompletion | Field::AllowMultiple | Field::AllowGrouped);
0097   field->setFormatType(FieldFormat::FormatName);
0098   list.append(field);
0099 
0100   field = new Field(QStringLiteral("bibtex-key"), i18n("Bibtex Key"));
0101   field->setProperty(bibtex, QStringLiteral("key"));
0102   field->setCategory(i18n("General"));
0103   field->setFlags(Field::NoDelete);
0104   list.append(field);
0105 
0106   field = new Field(QStringLiteral("booktitle"), i18n("Book Title"));
0107   field->setProperty(bibtex, QStringLiteral("booktitle"));
0108   field->setCategory(i18n(bibtex_general));
0109   field->setFormatType(FieldFormat::FormatTitle);
0110   list.append(field);
0111 
0112   field = new Field(QStringLiteral("editor"), i18n("Editor"));
0113   field->setProperty(bibtex, QStringLiteral("editor"));
0114   field->setCategory(i18n(bibtex_general));
0115   field->setFlags(Field::AllowCompletion | Field::AllowMultiple | Field::AllowGrouped);
0116   field->setFormatType(FieldFormat::FormatName);
0117   list.append(field);
0118 
0119   field = new Field(QStringLiteral("organization"), i18n("Organization"));
0120   field->setProperty(bibtex, QStringLiteral("organization"));
0121   field->setCategory(i18n(bibtex_general));
0122   field->setFlags(Field::AllowCompletion | Field::AllowGrouped);
0123   field->setFormatType(FieldFormat::FormatPlain);
0124   list.append(field);
0125 
0126 //  field = new Field(QLatin1String("institution"), i18n("Institution"));
0127 //  field->setProperty(QLatin1String("bibtex"), QLatin1String("institution"));
0128 //  field->setCategory(i18n(bibtex_general));
0129 //  field->setFlags(Field::AllowDelete);
0130 //  field->setFormatType(FieldFormat::FormatTitle);
0131 //  list.append(field);
0132 
0133 /******************* Publishing ****************************/
0134   field = new Field(QStringLiteral("publisher"), i18n("Publisher"));
0135   field->setProperty(bibtex, QStringLiteral("publisher"));
0136   field->setCategory(i18n(bibtex_publishing));
0137   field->setFlags(Field::AllowCompletion | Field::AllowGrouped);
0138   field->setFormatType(FieldFormat::FormatPlain);
0139   list.append(field);
0140 
0141   field = new Field(QStringLiteral("address"), i18n("Address"));
0142   field->setProperty(bibtex, QStringLiteral("address"));
0143   field->setCategory(i18n(bibtex_publishing));
0144   field->setFlags(Field::AllowCompletion | Field::AllowGrouped);
0145   list.append(field);
0146 
0147   field = new Field(QStringLiteral("edition"), i18n("Edition"));
0148   field->setProperty(bibtex, QStringLiteral("edition"));
0149   field->setCategory(i18n(bibtex_publishing));
0150   field->setFlags(Field::AllowCompletion);
0151   list.append(field);
0152 
0153   // don't make it a number, it could have latex processing commands in it
0154   field = new Field(QStringLiteral("pages"), i18n("Pages"));
0155   field->setProperty(bibtex, QStringLiteral("pages"));
0156   field->setCategory(i18n(bibtex_publishing));
0157   list.append(field);
0158 
0159   field = new Field(QStringLiteral("year"), i18n("Year"), Field::Number);
0160   field->setProperty(bibtex, QStringLiteral("year"));
0161   field->setCategory(i18n(bibtex_publishing));
0162   field->setFlags(Field::AllowGrouped);
0163   list.append(field);
0164 
0165   field = Field::createDefaultField(Field::IsbnField);
0166   field->setProperty(bibtex, QStringLiteral("isbn"));
0167   field->setCategory(i18n(bibtex_publishing));
0168   list.append(field);
0169 
0170   field = new Field(QStringLiteral("journal"), i18n("Journal"));
0171   field->setProperty(bibtex, QStringLiteral("journal"));
0172   field->setCategory(i18n(bibtex_publishing));
0173   field->setFlags(Field::AllowCompletion | Field::AllowGrouped);
0174   field->setFormatType(FieldFormat::FormatPlain);
0175   list.append(field);
0176 
0177   field = new Field(QStringLiteral("doi"), i18n("DOI"));
0178   field->setProperty(bibtex, QStringLiteral("doi"));
0179   field->setCategory(i18n(bibtex_publishing));
0180   field->setDescription(i18n("Digital Object Identifier"));
0181   list.append(field);
0182 
0183   // could make this a string list, but since bibtex import could have funky values
0184   // keep it an editbox
0185   field = new Field(QStringLiteral("month"), i18n("Month"));
0186   field->setProperty(bibtex, QStringLiteral("month"));
0187   field->setCategory(i18n(bibtex_publishing));
0188   field->setFlags(Field::AllowCompletion);
0189   list.append(field);
0190 
0191   field = new Field(QStringLiteral("number"), i18n("Number"), Field::Number);
0192   field->setProperty(bibtex, QStringLiteral("number"));
0193   field->setCategory(i18n(bibtex_publishing));
0194   list.append(field);
0195 
0196   field = new Field(QStringLiteral("howpublished"), i18n("How Published"));
0197   field->setProperty(bibtex, QStringLiteral("howpublished"));
0198   field->setCategory(i18n(bibtex_publishing));
0199   list.append(field);
0200 
0201 //  field = new Field(QLatin1String("school"), i18n("School"));
0202 //  field->setProperty(QLatin1String("bibtex"), QLatin1String("school"));
0203 //  field->setCategory(i18n(bibtex_publishing));
0204 //  field->setFlags(Field::AllowCompletion | Field::AllowGrouped);
0205 //  list.append(field);
0206 
0207 /******************* Classification ****************************/
0208   field = new Field(QStringLiteral("chapter"), i18n("Chapter"), Field::Number);
0209   field->setProperty(bibtex, QStringLiteral("chapter"));
0210   field->setCategory(i18n(bibtex_misc));
0211   list.append(field);
0212 
0213   field = new Field(QStringLiteral("series"), i18n("Series"));
0214   field->setProperty(bibtex, QStringLiteral("series"));
0215   field->setCategory(i18n(bibtex_misc));
0216   field->setFlags(Field::AllowCompletion | Field::AllowGrouped);
0217   field->setFormatType(FieldFormat::FormatTitle);
0218   list.append(field);
0219 
0220   field = new Field(QStringLiteral("volume"), i18nc("A number field in a bibliography", "Volume"), Field::Number);
0221   field->setProperty(bibtex, QStringLiteral("volume"));
0222   field->setCategory(i18n(bibtex_misc));
0223   list.append(field);
0224 
0225   field = new Field(QStringLiteral("crossref"), i18n("Cross-Reference"));
0226   field->setProperty(bibtex, QStringLiteral("crossref"));
0227   field->setCategory(i18n(bibtex_misc));
0228   list.append(field);
0229 
0230 //  field = new Field(QLatin1String("annote"), i18n("Annotation"));
0231 //  field->setProperty(QLatin1String("bibtex"), QLatin1String("annote"));
0232 //  field->setCategory(i18n(bibtex_misc));
0233 //  list.append(field);
0234 
0235   field = new Field(QStringLiteral("keyword"), i18n("Keywords"));
0236   field->setProperty(bibtex, QStringLiteral("keywords"));
0237   field->setCategory(i18n(bibtex_misc));
0238   field->setFlags(Field::AllowCompletion | Field::AllowMultiple | Field::AllowGrouped);
0239   list.append(field);
0240 
0241   field = new Field(QStringLiteral("url"), i18n("URL"), Field::URL);
0242   field->setProperty(bibtex, QStringLiteral("url"));
0243   field->setCategory(i18n(bibtex_misc));
0244   list.append(field);
0245 
0246   field = new Field(QStringLiteral("abstract"), i18n("Abstract"), Field::Para);
0247   field->setProperty(bibtex, QStringLiteral("abstract"));
0248   list.append(field);
0249 
0250   field = new Field(QStringLiteral("note"), i18n("Notes"), Field::Para);
0251   field->setProperty(bibtex, QStringLiteral("note"));
0252   list.append(field);
0253 
0254   field = Field::createDefaultField(Field::IDField);
0255   field->setCategory(i18n(bibtex_misc));
0256   list.append(field);
0257 
0258   field = Field::createDefaultField(Field::CreatedDateField);
0259   field->setCategory(i18n(bibtex_misc));
0260   list.append(field);
0261 
0262   field = Field::createDefaultField(Field::ModifiedDateField);
0263   field->setCategory(i18n(bibtex_misc));
0264   list.append(field);
0265 
0266   return list;
0267 }
0268 
0269 bool BibtexCollection::addField(Tellico::Data::FieldPtr field_) {
0270   if(!field_) {
0271     return false;
0272   }
0273   bool success = Collection::addField(field_);
0274   if(success) {
0275     const QString bibtex = field_->property(QStringLiteral("bibtex"));
0276     if(!bibtex.isEmpty()) {
0277       m_bibtexFieldDict.insert(bibtex, field_.data());
0278     }
0279   }
0280   return success;
0281 }
0282 
0283 bool BibtexCollection::modifyField(Tellico::Data::FieldPtr newField_) {
0284   if(!newField_) {
0285     return false;
0286   }
0287 //  myDebug();
0288   const QString bibtex = QStringLiteral("bibtex");
0289   bool success = Collection::modifyField(newField_);
0290   FieldPtr oldField = fieldByName(newField_->name());
0291   QString oldBibtex = oldField->property(bibtex);
0292   // if the field was edited in place, can't just look at the property value
0293   if(oldField == newField_) {
0294     // have to look at all fields in the hash to update the key
0295     auto i = m_bibtexFieldDict.constBegin();
0296     for( ; i != m_bibtexFieldDict.constEnd(); ++i) {
0297       if(oldField == i.value()) {
0298         oldBibtex = i.key();
0299       }
0300     }
0301   }
0302   success &= (m_bibtexFieldDict.remove(oldBibtex) > 0);
0303 
0304   const QString newBibtex = newField_->property(bibtex);
0305   if(!newBibtex.isEmpty()) {
0306     oldField->setProperty(bibtex, newBibtex);
0307     m_bibtexFieldDict.insert(newBibtex, oldField.data());
0308   }
0309   return success;
0310 }
0311 
0312 bool BibtexCollection::removeField(Tellico::Data::FieldPtr field_, bool force_) {
0313   if(!field_) {
0314     return false;
0315   }
0316 //  myDebug();
0317   bool success = true;
0318   const QString bibtex = field_->property(QStringLiteral("bibtex"));
0319   if(!bibtex.isEmpty()) {
0320     success &= (m_bibtexFieldDict.remove(bibtex) != 0);
0321   }
0322   return success && Collection::removeField(field_, force_);
0323 }
0324 
0325 bool BibtexCollection::removeField(const QString& name_, bool force_) {
0326   return removeField(fieldByName(name_), force_);
0327 }
0328 
0329 Tellico::Data::FieldPtr BibtexCollection::fieldByBibtexName(const QString& bibtex_) const {
0330   return FieldPtr(m_bibtexFieldDict.contains(bibtex_) ? m_bibtexFieldDict.value(bibtex_) : nullptr);
0331 }
0332 
0333 Tellico::Data::EntryPtr BibtexCollection::entryByBibtexKey(const QString& key_) const {
0334   EntryPtr entry;
0335   // we do assume unique keys
0336   foreach(EntryPtr e, entries()) {
0337     if(e->field(QStringLiteral("bibtex-key")) == key_) {
0338       entry = e;
0339       break;
0340     }
0341   }
0342   return entry;
0343 }
0344 
0345 QString BibtexCollection::prepareText(const QString& text_) const {
0346   QString text = text_;
0347   BibtexHandler::cleanText(text);
0348   return text;
0349 }
0350 
0351 int BibtexCollection::sameEntry(Tellico::Data::EntryPtr entry1_, Tellico::Data::EntryPtr entry2_) const {
0352   // equal identifiers are easy, give it a weight of 100
0353   if(EntryComparison::score(entry1_, entry2_, QStringLiteral("isbn"),  this) > 0 ||
0354      EntryComparison::score(entry1_, entry2_, QStringLiteral("lccn"),  this) > 0 ||
0355      EntryComparison::score(entry1_, entry2_, QStringLiteral("doi"),   this) > 0 ||
0356      EntryComparison::score(entry1_, entry2_, QStringLiteral("pmid"),  this) > 0 ||
0357      EntryComparison::score(entry1_, entry2_, QStringLiteral("arxiv"), this) > 0) {
0358     return EntryComparison::ENTRY_PERFECT_MATCH;
0359   }
0360   int res = 3*EntryComparison::score(entry1_, entry2_, QStringLiteral("title"), this);
0361   res += EntryComparison::score(entry1_, entry2_, QStringLiteral("author"),   this);
0362   res += EntryComparison::score(entry1_, entry2_, QStringLiteral("entry-type"),   this);
0363   if(res >= EntryComparison::ENTRY_PERFECT_MATCH) return res;
0364 
0365   res += EntryComparison::score(entry1_, entry2_, QStringLiteral("year"),  this);
0366   if(res >= EntryComparison::ENTRY_PERFECT_MATCH) return res;
0367 
0368   res += EntryComparison::score(entry1_, entry2_, QStringLiteral("publisher"), this);
0369   if(res >= EntryComparison::ENTRY_PERFECT_MATCH) return res;
0370 
0371   res += EntryComparison::score(entry1_, entry2_, QStringLiteral("binding"),  this);
0372   if(res >= EntryComparison::ENTRY_PERFECT_MATCH) return res;
0373   return res;
0374 }
0375 
0376 // static
0377 Tellico::Data::CollPtr BibtexCollection::convertBookCollection(Tellico::Data::CollPtr coll_) {
0378   const QString bibtex = QStringLiteral("bibtex");
0379   BibtexCollection* coll = new BibtexCollection(false, coll_->title());
0380   CollPtr collPtr(coll);
0381   FieldList fields = coll_->fields();
0382   foreach(FieldPtr fIt, fields) {
0383     FieldPtr field(new Field(*fIt));
0384 
0385     // if it already has a bibtex property, skip it
0386     if(!field->property(bibtex).isEmpty()) {
0387       coll->addField(field);
0388       continue;
0389     }
0390 
0391     // be sure to set bibtex property before adding it though
0392     QString name = field->name();
0393     // this first group has bibtex field names the same as their own field name
0394     if(name == QLatin1String("title")
0395        || name == QLatin1String("author")
0396        || name == QLatin1String("editor")
0397        || name == QLatin1String("edition")
0398        || name == QLatin1String("publisher")
0399        || name == QLatin1String("isbn")
0400        || name == QLatin1String("lccn")
0401        || name == QLatin1String("url")
0402        || name == QLatin1String("language")
0403        || name == QLatin1String("pages")
0404        || name == QLatin1String("series")) {
0405       field->setProperty(bibtex, name);
0406     } else if(name == QLatin1String("series_num")) {
0407       field->setProperty(bibtex, QStringLiteral("number"));
0408     } else if(name == QLatin1String("pur_price")) {
0409       field->setProperty(bibtex, QStringLiteral("price"));
0410     } else if(name == QLatin1String("cr_year")) {
0411       field->setProperty(bibtex, QStringLiteral("year"));
0412     } else if(name == QLatin1String("bibtex-id")) {
0413       field->setProperty(bibtex, QStringLiteral("key"));
0414     } else if(name == QLatin1String("keyword")) {
0415       field->setProperty(bibtex, QStringLiteral("keywords"));
0416     } else if(name == QLatin1String("comments")) {
0417       field->setProperty(bibtex, QStringLiteral("note"));
0418     }
0419     coll->addField(field);
0420   }
0421 
0422   // also need to add required fields, those with NoDelete set
0423   foreach(FieldPtr defaultField, coll->defaultFields()) {
0424     if(!coll->hasField(defaultField->name()) && defaultField->hasFlag(Field::NoDelete)) {
0425       // but don't add a Bibtex Key if there's already a bibtex-id
0426       if(defaultField->property(bibtex) != QLatin1String("key")
0427          || !coll->hasField(QStringLiteral("bibtex-id"))) {
0428         coll->addField(defaultField);
0429       }
0430     }
0431   }
0432 
0433   // set the entry-type to book
0434   FieldPtr field = coll->fieldByBibtexName(QStringLiteral("entry-type"));
0435   QString entryTypeName;
0436   if(field) {
0437     entryTypeName = field->name();
0438   } else {
0439     myWarning() << "there must be an entry type field";
0440   }
0441 
0442   EntryList newEntries;
0443   foreach(EntryPtr entry, coll_->entries()) {
0444     EntryPtr newEntry(new Entry(*entry));
0445     newEntry->setCollection(collPtr);
0446     if(!entryTypeName.isEmpty()) {
0447       newEntry->setField(entryTypeName, QStringLiteral("book"));
0448     }
0449     newEntries.append(newEntry);
0450   }
0451   coll->addEntries(newEntries);
0452 
0453   return collPtr;
0454 }
0455 
0456 bool BibtexCollection::setFieldValue(Data::EntryPtr entry_, const QString& bibtexField_, const QString& value_, Data::CollPtr existingColl_) {
0457   Q_ASSERT(entry_->collection()->type() == Collection::Bibtex);
0458   BibtexCollection* c = static_cast<BibtexCollection*>(entry_->collection().data());
0459   FieldPtr field = c->fieldByBibtexName(bibtexField_);
0460   // special-case: "keyword" and "keywords" should be the same field.
0461   if(!field && bibtexField_ == QLatin1String("keyword")) {
0462     field = c->fieldByBibtexName(QStringLiteral("keywords"));
0463   }
0464   if(!field) {
0465     // it was the case that the default bibliography did not have a bibtex property for keywords
0466     // so a "keywords" field would get created in the imported collection
0467     // but the existing collection had a field "keyword" so the values would not get imported
0468     // here, check to see if the current collection has a field with the same bibtex name and
0469     // use it instead of creating a new one
0470     BibtexCollection* existingColl = dynamic_cast<BibtexCollection*>(existingColl_.data());
0471     FieldPtr existingField;
0472     if(existingColl && existingColl->type() == Collection::Bibtex) {
0473       existingField = existingColl->fieldByBibtexName(bibtexField_);
0474     }
0475     if(existingField) {
0476       field = new Field(*existingField);
0477     } else if(value_.length() < 100) {
0478       // arbitrarily say if the value has more than 100 chars, then it's a paragraph
0479       QString vlower = value_.toLower();
0480       // special case, try to detect URLs
0481       if(bibtexField_ == QLatin1String("url")
0482          || vlower.startsWith(QLatin1String("http")) // may also be https
0483          || vlower.startsWith(QLatin1String("ftp:/"))
0484          || vlower.startsWith(QLatin1String("file:/"))
0485          || vlower.startsWith(QLatin1String("/"))) { // assume this indicates a local path
0486         myDebug() << "creating a URL field for" << bibtexField_;
0487         field = new Field(bibtexField_, KStringHandler::capwords(bibtexField_), Field::URL);
0488       } else {
0489         myDebug() << "creating a LINE field for" << bibtexField_;
0490         field = new Field(bibtexField_, KStringHandler::capwords(bibtexField_), Field::Line);
0491       }
0492       field->setCategory(i18n("Unknown"));
0493     } else {
0494       myDebug() << "creating a PARA field for" << bibtexField_;
0495       field = new Field(bibtexField_, KStringHandler::capwords(bibtexField_), Field::Para);
0496     }
0497     field->setProperty(QStringLiteral("bibtex"), bibtexField_);
0498     c->addField(field);
0499   }
0500   // special case keywords, replace commas with semi-colons so they get separated
0501   QString value = value_;
0502   Q_ASSERT(field);
0503   static const QRegularExpression spaceCommaRx(QLatin1String("\\s*,\\s*"));
0504   if(bibtexField_.startsWith(QLatin1String("keyword"))) {
0505     value.replace(spaceCommaRx, FieldFormat::delimiterString());
0506     // special case refbase bibtex export, with multiple keywords fields
0507     QString oValue = entry_->field(field);
0508     if(!oValue.isEmpty()) {
0509       value = oValue + FieldFormat::delimiterString() + value;
0510     }
0511   // special case for tilde, since it's a non-breaking space in LateX
0512   // replace it EXCEPT for URL or DOI fields
0513   } else if(bibtexField_ != QLatin1String("doi") && field->type() != Field::URL) {
0514     value.replace(QLatin1Char('~'), QChar(0xA0));
0515   } else if(field->type() == Field::URL || bibtexField_ == QLatin1String("url")) {
0516     // special case for url package
0517     if(value.startsWith(QLatin1String("\\url{")) && value.endsWith(QLatin1Char('}'))) {
0518       value.remove(0, 5).chop(1);
0519     }
0520   }
0521   return entry_->setField(field, value);
0522 }
0523 
0524 Tellico::Data::EntryList BibtexCollection::duplicateBibtexKeys() const {
0525   QSet<EntryPtr> dupes;
0526   QHash<QString, EntryPtr> keyHash;
0527 
0528   const QString keyField = QStringLiteral("bibtex-key");
0529   QString keyValue;
0530   foreach(EntryPtr entry, entries()) {
0531     keyValue = entry->field(keyField);
0532     if(keyHash.contains(keyValue)) {
0533       dupes << keyHash.value(keyValue) << entry;
0534     } else {
0535       keyHash.insert(keyValue, entry);
0536     }
0537   }
0538   return dupes.values();
0539 }