src/frontends/qt4/GuiCitation.cpp

   1 /**
   2  * \file GuiCitation.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Angus Leeming
   7  * \author Kalle Dalheimer
   8  * \author Abdelrazak Younes
   9  * \author Richard Heck
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #include <config.h>
  15
  16 #include "GuiCitation.h"
  17
  18 #include "qt_helpers.h"
  19 #include "Buffer.h"
  20 #include "BufferParams.h"
  21 #include "FuncRequest.h"
  22
  23 #include "insets/InsetCommand.h"
  24
  25 #include "support/debug.h"
  26 #include "support/docstring.h"
  27 #include "support/gettext.h"
  28 #include "support/lstrings.h"
  29
  30 #include <QCloseEvent>
  31 #include <QShowEvent>
  32
  33 #include <vector>
  34 #include <string>
  35
  36 #undef KeyPress
  37
  38 #include <boost/regex.hpp>
  39
  40 #include <algorithm>
  41 #include <string>
  42 #include <vector>
  43
  44 using namespace std;
  45 using namespace lyx::support;
  46
  47 namespace lyx {
  48 namespace frontend {
  49
  50 static vector<CiteStyle> citeStyles_;
  51
  52
  53 template<typename String>
  54 static QStringList to_qstring_list(vector<String> const & v)
  55 {
  56         QStringList qlist;
  57
  58         for (size_t i = 0; i != v.size(); ++i) {
  59                 if (v[i].empty())
  60                         continue;
  61                 qlist.append(lyx::toqstr(v[i]));
  62         }
  63         return qlist;
  64 }
  65
  66
  67 static vector<lyx::docstring> to_docstring_vector(QStringList const & qlist)
  68 {
  69         vector<lyx::docstring> v;
  70         for (int i = 0; i != qlist.size(); ++i) {
  71                 if (qlist[i].isEmpty())
  72                         continue;
  73                 v.push_back(lyx::qstring_to_ucs4(qlist[i]));
  74         }
  75         return v;
  76 }
  77
  78
  79 GuiCitation::GuiCitation(GuiView & lv)
  80         : GuiDialog(lv, "citation", qt_("Citation")),
  81           params_(insetCode("citation"))
  82 {
  83         setupUi(this);
  84
  85         connect(citationStyleCO, SIGNAL(activated(int)),
  86                 this, SLOT(on_citationStyleCO_currentIndexChanged(int)));
  87         connect(fulllistCB, SIGNAL(clicked()),
  88                 this, SLOT(changed()));
  89         connect(forceuppercaseCB, SIGNAL(clicked()),
  90                 this, SLOT(changed()));
  91         connect(textBeforeED, SIGNAL(textChanged(QString)),
  92                 this, SLOT(changed()));
  93         connect(textAfterED, SIGNAL(textChanged(QString)),
  94                 this, SLOT(changed()));
  95         connect(findLE, SIGNAL(returnPressed()),
  96                 this, SLOT(on_searchPB_clicked()));
  97         connect(textBeforeED, SIGNAL(returnPressed()),
  98                 this, SLOT(on_okPB_clicked()));
  99         connect(textAfterED, SIGNAL(returnPressed()),
 100                 this, SLOT(on_okPB_clicked()));
 101
 102         connect(this, SIGNAL(rejected()), this, SLOT(cleanUp()));
 103
 104         selectionManager = new GuiSelectionManager(availableLV, selectedLV,
 105                         addPB, deletePB, upPB, downPB, available(), selected());
 106         connect(selectionManager, SIGNAL(selectionChanged()),
 107                 this, SLOT(setCitedKeys()));
 108         connect(selectionManager, SIGNAL(updateHook()),
 109                 this, SLOT(updateDialog()));
 110         connect(selectionManager, SIGNAL(okHook()),
 111                 this, SLOT(on_okPB_clicked()));
 112
 113         bc().setPolicy(ButtonPolicy::NoRepeatedApplyReadOnlyPolicy);
 114         // FIXME: the sizeHint() for this is _way_ too high
 115         infoML->setFixedHeight(60);
 116 }
 117
 118
 119 GuiCitation::~GuiCitation()
 120 {
 121         delete selectionManager;
 122 }
 123
 124
 125 void GuiCitation::cleanUp()
 126 {
 127         clearSelection();
 128         clearParams();
 129         close();
 130 }
 131
 132
 133 void GuiCitation::closeEvent(QCloseEvent * e)
 134 {
 135         clearSelection();
 136         clearParams();
 137         e->accept();
 138 }
 139
 140
 141 void GuiCitation::applyView()
 142 {
 143         int const choice = max(0, citationStyleCO->currentIndex());
 144         style_ = choice;
 145         bool const full  = fulllistCB->isChecked();
 146         bool const force = forceuppercaseCB->isChecked();
 147
 148         QString const before = textBeforeED->text();
 149         QString const after = textAfterED->text();
 150
 151         apply(choice, full, force, before, after);
 152 }
 153
 154
 155 void GuiCitation::showEvent(QShowEvent * e)
 156 {
 157         init();
 158         findLE->clear();
 159         availableLV->setFocus();
 160         GuiDialog::showEvent(e);
 161 }
 162
 163
 164 void GuiCitation::on_okPB_clicked()
 165 {
 166         applyView();
 167         clearSelection();
 168         hide();
 169 }
 170
 171
 172 void GuiCitation::on_cancelPB_clicked()
 173 {
 174         clearSelection();
 175         hide();
 176 }
 177
 178
 179 void GuiCitation::on_applyPB_clicked()
 180 {
 181         applyView();
 182 }
 183
 184
 185 void GuiCitation::on_restorePB_clicked()
 186 {
 187         init();
 188         updateView();
 189 }
 190
 191
 192 void GuiCitation::updateView()
 193 {
 194         init();
 195         fillFields();
 196         fillEntries();
 197         updateDialog();
 198 }
 199
 200
 201 // The main point of separating this out is that the fill*() methods
 202 // called in update() do not need to be called for INTERNAL updates,
 203 // such as when addPB is pressed, as the list of fields, entries, etc,
 204 // will not have changed. At the moment, however, the division between
 205 // fillStyles() and updateStyle() doesn't lend itself to dividing the
 206 // two methods, though they should be divisible.
 207 void GuiCitation::updateDialog()
 208 {
 209         if (selectionManager->selectedFocused()) {
 210                 if (selectedLV->selectionModel()->selectedIndexes().isEmpty())
 211                         updateInfo(availableLV->currentIndex());
 212                 else
 213                         updateInfo(selectedLV->currentIndex());
 214         } else {
 215                 if (availableLV->selectionModel()->selectedIndexes().isEmpty())
 216                         updateInfo(QModelIndex());
 217                 else
 218                         updateInfo(availableLV->currentIndex());
 219         }
 220         setButtons();
 221
 222         textBeforeED->setText(textBefore());
 223         textAfterED->setText(textAfter());
 224         fillStyles();
 225         updateStyle();
 226 }
 227
 228
 229 void GuiCitation::updateFormatting(CiteStyle currentStyle)
 230 {
 231         CiteEngine const engine = citeEngine();
 232         bool const natbib_engine =
 233                 engine == ENGINE_NATBIB_AUTHORYEAR ||
 234                 engine == ENGINE_NATBIB_NUMERICAL;
 235         bool const basic_engine = engine == ENGINE_BASIC;
 236
 237         bool const haveSelection =
 238                 selectedLV->model()->rowCount() > 0;
 239
 240         bool const isNocite = currentStyle == NOCITE;
 241
 242         fulllistCB->setEnabled(natbib_engine && haveSelection && !isNocite);
 243         forceuppercaseCB->setEnabled(natbib_engine && haveSelection && !isNocite);
 244         textBeforeED->setEnabled(!basic_engine && haveSelection && !isNocite);
 245         textBeforeLA->setEnabled(!basic_engine && haveSelection && !isNocite);
 246         textAfterED->setEnabled(haveSelection && !isNocite);
 247         textAfterLA->setEnabled(haveSelection && !isNocite);
 248         citationStyleCO->setEnabled(haveSelection);
 249         citationStyleLA->setEnabled(haveSelection);
 250 }
 251
 252
 253 void GuiCitation::updateStyle()
 254 {
 255         string const & command = params_.getCmdName();
 256
 257         // Find the style of the citekeys
 258         vector<CiteStyle> const & styles = citeStyles_;
 259         CitationStyle const cs = citationStyleFromString(command);
 260
 261         vector<CiteStyle>::const_iterator cit =
 262                 std::find(styles.begin(), styles.end(), cs.style);
 263
 264         // restore the latest natbib style
 265         if (style_ >= 0 && style_ < citationStyleCO->count())
 266                 citationStyleCO->setCurrentIndex(style_);
 267         else
 268                 citationStyleCO->setCurrentIndex(0);
 269
 270         if (cit != styles.end()) {
 271                 int const i = int(cit - styles.begin());
 272                 citationStyleCO->setCurrentIndex(i);
 273                 fulllistCB->setChecked(cs.full);
 274                 forceuppercaseCB->setChecked(cs.forceUpperCase);
 275         } else {
 276                 fulllistCB->setChecked(false);
 277                 forceuppercaseCB->setChecked(false);
 278         }
 279         updateFormatting(cs.style);
 280 }
 281
 282 // This one needs to be called whenever citationStyleCO needs
 283 // to be updated---and this would be on anything that changes the
 284 // selection in selectedLV, or on a general update.
 285 void GuiCitation::fillStyles()
 286 {
 287         int const oldIndex = citationStyleCO->currentIndex();
 288
 289         citationStyleCO->clear();
 290
 291         QStringList selected_keys = selected()->stringList();
 292         if (selected_keys.empty()) {
 293                 citationStyleCO->setEnabled(false);
 294                 citationStyleLA->setEnabled(false);
 295                 return;
 296         }
 297
 298         int curr = selectedLV->model()->rowCount() - 1;
 299         if (curr < 0)
 300                 return;
 301
 302         if (!selectedLV->selectionModel()->selectedIndexes().empty())
 303                 curr = selectedLV->selectionModel()->selectedIndexes()[0].row();
 304
 305         QStringList sty = citationStyles(curr);
 306
 307         citationStyleCO->setEnabled(!sty.isEmpty());
 308         citationStyleLA->setEnabled(!sty.isEmpty());
 309
 310         if (sty.isEmpty())
 311                 return;
 312
 313         citationStyleCO->insertItems(0, sty);
 314
 315         if (oldIndex != -1 && oldIndex < citationStyleCO->count())
 316                 citationStyleCO->setCurrentIndex(oldIndex);
 317 }
 318
 319
 320 void GuiCitation::fillFields()
 321 {
 322         fieldsCO->blockSignals(true);
 323         int const oldIndex = fieldsCO->currentIndex();
 324         fieldsCO->clear();
 325         QStringList const & fields = getFieldsAsQStringList();
 326         fieldsCO->insertItem(0, qt_("All Fields"));
 327         fieldsCO->insertItem(1, qt_("Keys"));
 328         fieldsCO->insertItems(2, fields);
 329         if (oldIndex != -1 && oldIndex < fieldsCO->count())
 330                 fieldsCO->setCurrentIndex(oldIndex);
 331         fieldsCO->blockSignals(false);
 332 }
 333
 334
 335 void GuiCitation::fillEntries()
 336 {
 337         entriesCO->blockSignals(true);
 338         int const oldIndex = entriesCO->currentIndex();
 339         entriesCO->clear();
 340         QStringList const & entries = getEntriesAsQStringList();
 341         entriesCO->insertItem(0, qt_("All Entry Types"));
 342         entriesCO->insertItems(1, entries);
 343         if (oldIndex != -1 && oldIndex < entriesCO->count())
 344                 entriesCO->setCurrentIndex(oldIndex);
 345         entriesCO->blockSignals(false);
 346 }
 347
 348
 349 bool GuiCitation::isSelected(const QModelIndex & idx)
 350 {
 351         QString const str = idx.data().toString();
 352         return selected()->stringList().contains(str);
 353 }
 354
 355
 356 void GuiCitation::setButtons()
 357 {
 358         selectionManager->update();
 359         int const srows = selectedLV->model()->rowCount();
 360         applyPB->setEnabled(srows > 0);
 361         okPB->setEnabled(srows > 0);
 362 }
 363
 364
 365 void GuiCitation::updateInfo(QModelIndex const & idx)
 366 {
 367         if (idx.isValid()) {
 368                 QString const keytxt = getKeyInfo(idx.data().toString());
 369                 infoML->document()->setPlainText(keytxt);
 370         } else
 371                 infoML->document()->clear();
 372 }
 373
 374
 375 void GuiCitation::findText(QString const & text, bool reset)
 376 {
 377         //"All Fields" and "Keys" are the first two
 378         int index = fieldsCO->currentIndex() - 2;
 379         vector<docstring> const & fields = availableFields();
 380         docstring field;
 381
 382         if (index <= -1 || index >= int(fields.size()))
 383                 //either "All Fields" or "Keys" or an invalid value
 384                 field = from_ascii("");
 385         else
 386                 field = fields[index];
 387
 388         //Was it "Keys"?
 389         bool const onlyKeys = index == -1;
 390
 391         //"All Entry Types" is first.
 392         index = entriesCO->currentIndex() - 1;
 393         vector<docstring> const & entries = availableEntries();
 394         docstring entry_type;
 395         if (index < 0 || index >= int(entries.size()))
 396                 entry_type = from_ascii("");
 397         else
 398                 entry_type = entries[index];
 399
 400         bool const case_sentitive = caseCB->checkState();
 401         bool const reg_exp = regexCB->checkState();
 402         findKey(text, onlyKeys, field, entry_type,
 403                        case_sentitive, reg_exp, reset);
 404         //FIXME
 405         //It'd be nice to save and restore the current selection in
 406         //availableLV. Currently, we get an automatic reset, since the
 407         //model is reset.
 408
 409         updateDialog();
 410 }
 411
 412
 413 void GuiCitation::on_fieldsCO_currentIndexChanged(int /*index*/)
 414 {
 415         findText(findLE->text(), true);
 416 }
 417
 418
 419 void GuiCitation::on_entriesCO_currentIndexChanged(int /*index*/)
 420 {
 421         findText(findLE->text(), true);
 422 }
 423
 424
 425 void GuiCitation::on_citationStyleCO_currentIndexChanged(int index)
 426 {
 427         if (index >= 0 && index < citationStyleCO->count()) {
 428                 vector<CiteStyle> const & styles = citeStyles_;
 429                 updateFormatting(styles[index]);
 430         }
 431 }
 432
 433
 434 void GuiCitation::on_findLE_textChanged(const QString & text)
 435 {
 436         bool const searchAsWeGo = (asTypeCB->checkState() == Qt::Checked);
 437         searchPB->setDisabled(text.isEmpty() || searchAsWeGo);
 438         if (!text.isEmpty()) {
 439                 if (searchAsWeGo)
 440                         findText(findLE->text());
 441                 return;
 442         }
 443         findText(findLE->text());
 444         findLE->setFocus();
 445 }
 446
 447 void GuiCitation::on_searchPB_clicked()
 448 {
 449         findText(findLE->text(), true);
 450 }
 451
 452
 453 void GuiCitation::on_caseCB_stateChanged(int)
 454 {
 455         findText(findLE->text());
 456 }
 457
 458
 459 void GuiCitation::on_regexCB_stateChanged(int)
 460 {
 461         findText(findLE->text());
 462 }
 463
 464
 465 void GuiCitation::on_asTypeCB_stateChanged(int)
 466 {
 467         bool const searchAsWeGo = (asTypeCB->checkState() == Qt::Checked);
 468         searchPB->setDisabled(findLE->text().isEmpty() || searchAsWeGo);
 469         if (searchAsWeGo)
 470                 findText(findLE->text(), true);
 471 }
 472
 473
 474 void GuiCitation::changed()
 475 {
 476         setButtons();
 477 }
 478
 479
 480 void GuiCitation::apply(int const choice, bool full, bool force,
 481         QString before, QString after)
 482 {
 483         if (cited_keys_.isEmpty())
 484                 return;
 485
 486         vector<CiteStyle> const & styles = citeStyles_;
 487         if (styles[choice] == NOCITE) {
 488                 full = false;
 489                 force = false;
 490                 before.clear();
 491                 after.clear();
 492         }
 493
 494         CitationStyle s;
 495         s.style = styles[choice];
 496         s.full = full;
 497         s.forceUpperCase = force;
 498         string const command = citationStyleToString(s);
 499
 500         params_.setCmdName(command);
 501         params_["key"] = qstring_to_ucs4(cited_keys_.join(","));
 502         params_["before"] = qstring_to_ucs4(before);
 503         params_["after"] = qstring_to_ucs4(after);
 504         dispatchParams();
 505 }
 506
 507
 508 void GuiCitation::clearSelection()
 509 {
 510         cited_keys_.clear();
 511         selected_model_.setStringList(cited_keys_);
 512 }
 513
 514
 515 QString GuiCitation::textBefore()
 516 {
 517         return toqstr(params_["before"]);
 518 }
 519
 520
 521 QString GuiCitation::textAfter()
 522 {
 523         return toqstr(params_["after"]);
 524 }
 525
 526
 527 void GuiCitation::init()
 528 {
 529         // Make the list of all available bibliography keys
 530         all_keys_ = to_qstring_list(availableKeys());
 531         available_model_.setStringList(all_keys_);
 532
 533         // Ditto for the keys cited in this inset
 534         QString str = toqstr(params_["key"]);
 535         if (str.isEmpty())
 536                 cited_keys_.clear();
 537         else
 538                 cited_keys_ = str.split(",");
 539         selected_model_.setStringList(cited_keys_);
 540 }
 541
 542
 543 void GuiCitation::findKey(QString const & str, bool only_keys,
 544         docstring field, docstring entry_type,
 545         bool case_sensitive, bool reg_exp, bool reset)
 546 {
 547         // Used for optimisation: store last searched string.
 548         static QString last_searched_string;
 549         // Used to disable the above optimisation.
 550         static bool last_case_sensitive;
 551         static bool last_reg_exp;
 552         // Reset last_searched_string in case of changed option.
 553         if (last_case_sensitive != case_sensitive
 554                 || last_reg_exp != reg_exp) {
 555                         LYXERR(Debug::GUI, "GuiCitation::findKey: optimisation disabled!");
 556                 last_searched_string.clear();
 557         }
 558         // save option for next search.
 559         last_case_sensitive = case_sensitive;
 560         last_reg_exp = reg_exp;
 561
 562         Qt::CaseSensitivity qtcase = case_sensitive ?
 563                         Qt::CaseSensitive: Qt::CaseInsensitive;
 564         QStringList keys;
 565         // If new string (str) contains the last searched one...
 566         if (!reset &&
 567                 !last_searched_string.isEmpty() &&
 568                 str.size() > 1 &&
 569                 str.contains(last_searched_string, qtcase))
 570                 // ... then only search within already found list.
 571                 keys = available_model_.stringList();
 572         else
 573                 // ... else search all keys.
 574                 keys = all_keys_;
 575         // save searched string for next search.
 576         last_searched_string = str;
 577
 578         QStringList result;
 579
 580         // First, filter by entry_type, which will be faster than
 581         // what follows, so we may get to do that on less.
 582         vector<docstring> keyVector = to_docstring_vector(keys);
 583         filterByEntryType(keyVector, entry_type);
 584
 585         if (str.isEmpty())
 586                 result = to_qstring_list(keyVector);
 587         else
 588                 result = to_qstring_list(searchKeys(keyVector, only_keys,
 589                         qstring_to_ucs4(str), field, case_sensitive, reg_exp));
 590
 591         available_model_.setStringList(result);
 592 }
 593
 594
 595 QStringList GuiCitation::getFieldsAsQStringList()
 596 {
 597         return to_qstring_list(availableFields());
 598 }
 599
 600
 601 QStringList GuiCitation::getEntriesAsQStringList()
 602 {
 603         return to_qstring_list(availableEntries());
 604 }
 605
 606
 607 QStringList GuiCitation::citationStyles(int sel)
 608 {
 609         docstring const key = qstring_to_ucs4(cited_keys_[sel]);
 610         return to_qstring_list(bibInfo().getCiteStrings(key, buffer()));
 611 }
 612
 613
 614 QString GuiCitation::getKeyInfo(QString const & sel)
 615 {
 616         return toqstr(getInfo(qstring_to_ucs4(sel)));
 617 }
 618
 619
 620 void GuiCitation::setCitedKeys()
 621 {
 622         cited_keys_ = selected_model_.stringList();
 623 }
 624
 625
 626 bool GuiCitation::initialiseParams(string const & data)
 627 {
 628         InsetCommand::string2params("citation", data, params_);
 629         CiteEngine const engine = buffer().params().citeEngine();
 630         citeStyles_ = citeStyles(engine);
 631         return true;
 632 }
 633
 634
 635 void GuiCitation::clearParams()
 636 {
 637         params_.clear();
 638 }
 639
 640
 641 vector<docstring> GuiCitation::availableKeys() const
 642 {
 643         return bibInfo().getKeys();
 644 }
 645
 646
 647 vector<docstring> GuiCitation::availableFields() const
 648 {
 649         return bibInfo().getFields();
 650 }
 651
 652
 653 vector<docstring> GuiCitation::availableEntries() const
 654 {
 655         return bibInfo().getEntries();
 656 }
 657
 658
 659 void GuiCitation::filterByEntryType(
 660         vector<docstring> & keyVector, docstring entry_type)
 661 {
 662         if (entry_type.empty())
 663                 return;
 664
 665         vector<docstring>::iterator it = keyVector.begin();
 666         vector<docstring>::iterator end = keyVector.end();
 667
 668         vector<docstring> result;
 669         for (; it != end; ++it) {
 670                 docstring const key = *it;
 671                 BiblioInfo::const_iterator cit = bibInfo().find(key);
 672                 if (cit == bibInfo().end())
 673                         continue;
 674                 if (cit->second.entryType() == entry_type)
 675                         result.push_back(key);
 676         }
 677         keyVector = result;
 678 }
 679
 680
 681 CiteEngine GuiCitation::citeEngine() const
 682 {
 683         return buffer().params().citeEngine();
 684 }
 685
 686
 687 docstring GuiCitation::getInfo(docstring const & key) const
 688 {
 689         if (bibInfo().empty())
 690                 return docstring();
 691
 692         return bibInfo().getInfo(key);
 693 }
 694
 695
 696 // Escape special chars.
 697 // All characters are literals except: '.|*?+(){}[]^$\'
 698 // These characters are literals when preceded by a "\", which is done here
 699 // @todo: This function should be moved to support, and then the test in tests
 700 //        should be moved there as well.
 701 static docstring escape_special_chars(docstring const & expr)
 702 {
 703         // Search for all chars '.|*?+(){}[^$]\'
 704         // Note that '[' and '\' must be escaped.
 705         // This is a limitation of boost::regex, but all other chars in BREs
 706         // are assumed literal.
 707         static const boost::regex reg("[].|*?+(){}^$\\[\\\\]");
 708
 709         // $& is a perl-like expression that expands to all
 710         // of the current match
 711         // The '$' must be prefixed with the escape character '\' for
 712         // boost to treat it as a literal.
 713         // Thus, to prefix a matched expression with '\', we use:
 714         // FIXME: UNICODE
 715         return from_utf8(boost::regex_replace(to_utf8(expr), reg, "\\\\$&"));
 716 }
 717
 718
 719 vector<docstring> GuiCitation::searchKeys(
 720         vector<docstring> const & keys_to_search, bool only_keys,
 721         docstring const & search_expression, docstring field,
 722         bool case_sensitive, bool regex)
 723 {
 724         vector<docstring> foundKeys;
 725
 726         docstring expr = trim(search_expression);
 727         if (expr.empty())
 728                 return foundKeys;
 729
 730         if (!regex)
 731                 // We must escape special chars in the search_expr so that
 732                 // it is treated as a simple string by boost::regex.
 733                 expr = escape_special_chars(expr);
 734
 735         boost::regex reg_exp;
 736         try {
 737                 reg_exp.assign(to_utf8(expr), case_sensitive ?
 738                         boost::regex_constants::normal : boost::regex_constants::icase);
 739         } catch (boost::regex_error & e) {
 740                 // boost::regex throws an exception if the regular expression is not
 741                 // valid.
 742                 LYXERR(Debug::GUI, e.what());
 743                 return vector<docstring>();
 744         }
 745
 746         vector<docstring>::const_iterator it = keys_to_search.begin();
 747         vector<docstring>::const_iterator end = keys_to_search.end();
 748         for (; it != end; ++it ) {
 749                 BiblioInfo::const_iterator info = bibInfo().find(*it);
 750                 if (info == bibInfo().end())
 751                         continue;
 752
 753                 BibTeXInfo const & kvm = info->second;
 754                 string data;
 755                 if (only_keys)
 756                         data = to_utf8(*it);
 757                 else if (field.empty())
 758                         data = to_utf8(*it) + ' ' + to_utf8(kvm.allData());
 759                 else if (kvm.hasField(field))
 760                         data = to_utf8(kvm.getValueForField(field));
 761
 762                 if (data.empty())
 763                         continue;
 764
 765                 try {
 766                         if (boost::regex_search(data, reg_exp))
 767                                 foundKeys.push_back(*it);
 768                 }
 769                 catch (boost::regex_error & e) {
 770                         LYXERR(Debug::GUI, e.what());
 771                         return vector<docstring>();
 772                 }
 773         }
 774         return foundKeys;
 775 }
 776
 777
 778 void GuiCitation::dispatchParams()
 779 {
 780         std::string const lfun = InsetCommand::params2string("citation", params_);
 781         dispatch(FuncRequest(getLfun(), lfun));
 782 }
 783
 784
 785 BiblioInfo const & GuiCitation::bibInfo() const
 786 {
 787         return buffer().masterBibInfo();
 788 }
 789
 790
 791 Dialog * createGuiCitation(GuiView & lv) { return new GuiCitation(lv); }
 792
 793
 794 } // namespace frontend
 795 } // namespace lyx
 796
 797 #include "GuiCitation_moc.cpp"
 798