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