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