src/insets/InsetBibtex.cpp

   1 /**
   2  * \file InsetBibtex.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alejandro Aguilar Sierra
   7  * \author Richard Heck (BibTeX parser improvements)
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "InsetBibtex.h"
  15
  16 #include "Buffer.h"
  17 #include "BufferParams.h"
  18 #include "DispatchResult.h"
  19 #include "EmbeddedFiles.h"
  20 #include "Encoding.h"
  21 #include "FuncRequest.h"
  22 #include "LaTeXFeatures.h"
  23 #include "MetricsInfo.h"
  24 #include "OutputParams.h"
  25 #include "TextClass.h"
  26
  27 #include "frontends/alert.h"
  28
  29 #include "support/debug.h"
  30 #include "support/docstream.h"
  31 #include "support/ExceptionMessage.h"
  32 #include "support/filetools.h"
  33 #include "support/gettext.h"
  34 #include "support/lstrings.h"
  35 #include "support/os.h"
  36 #include "support/Path.h"
  37 #include "support/textutils.h"
  38
  39 #include <limits>
  40
  41 using namespace std;
  42 using namespace lyx::support;
  43
  44 namespace lyx {
  45
  46 namespace Alert = frontend::Alert;
  47 namespace os = support::os;
  48
  49
  50 InsetBibtex::InsetBibtex(InsetCommandParams const & p)
  51         : InsetCommand(p, "bibtex"), bibfiles_()
  52 {}
  53
  54
  55 ParamInfo const & InsetBibtex::findInfo(string const & /* cmdName */)
  56 {
  57         static ParamInfo param_info_;
  58         if (param_info_.empty()) {
  59                 param_info_.add("btprint", ParamInfo::LATEX_OPTIONAL);
  60                 param_info_.add("bibfiles", ParamInfo::LATEX_REQUIRED);
  61                 param_info_.add("embed", ParamInfo::LYX_INTERNAL);
  62                 param_info_.add("options", ParamInfo::LYX_INTERNAL);
  63         }
  64         return param_info_;
  65 }
  66
  67
  68 void InsetBibtex::doDispatch(Cursor & cur, FuncRequest & cmd)
  69 {
  70         switch (cmd.action) {
  71
  72         case LFUN_INSET_MODIFY: {
  73                 InsetCommandParams p(BIBTEX_CODE);
  74                 try {
  75                         if (!InsetCommandMailer::string2params("bibtex",
  76                                         to_utf8(cmd.argument()), p)) {
  77                                 cur.noUpdate();
  78                                 break;
  79                         }
  80                 } catch (ExceptionMessage const & message) {
  81                         if (message.type_ == WarningException) {
  82                                 Alert::warning(message.title_, message.details_);
  83                                 cur.noUpdate();
  84                         } else
  85                                 throw message;
  86                         break;
  87                 }
  88                 //
  89                 createBibFiles(p["bibfiles"], p["embed"]);
  90                 updateParam();
  91                 buffer().updateBibfilesCache();
  92                 break;
  93         }
  94
  95         default:
  96                 InsetCommand::doDispatch(cur, cmd);
  97                 break;
  98         }
  99 }
 100
 101
 102 docstring InsetBibtex::screenLabel() const
 103 {
 104         return _("BibTeX Generated Bibliography");
 105 }
 106
 107
 108 static string normalizeName(Buffer const & buffer,
 109         OutputParams const & runparams, string const & name, string const & ext)
 110 {
 111         string const fname = makeAbsPath(name, buffer.filePath()).absFilename();
 112         if (FileName(name).isAbsolute() || !FileName(fname + ext).isReadableFile())
 113                 return name;
 114         if (!runparams.nice)
 115                 return fname;
 116
 117         // FIXME UNICODE
 118         return to_utf8(makeRelPath(from_utf8(fname),
 119                                          from_utf8(buffer.masterBuffer()->filePath())));
 120 }
 121
 122
 123 int InsetBibtex::latex(odocstream & os, OutputParams const & runparams) const
 124 {
 125         // the sequence of the commands:
 126         // 1. \bibliographystyle{style}
 127         // 2. \addcontentsline{...} - if option bibtotoc set
 128         // 3. \bibliography{database}
 129         // and with bibtopic:
 130         // 1. \bibliographystyle{style}
 131         // 2. \begin{btSect}{database}
 132         // 3. \btPrint{Cited|NotCited|All}
 133         // 4. \end{btSect}
 134
 135         // Database(s)
 136         // If we are processing the LaTeX file in a temp directory then
 137         // copy the .bib databases to this temp directory, mangling their
 138         // names in the process. Store this mangled name in the list of
 139         // all databases.
 140         // (We need to do all this because BibTeX *really*, *really*
 141         // can't handle "files with spaces" and Windows users tend to
 142         // use such filenames.)
 143         // Otherwise, store the (maybe absolute) path to the original,
 144         // unmangled database name.
 145         EmbeddedFileList::const_iterator it = bibfiles_.begin();
 146         EmbeddedFileList::const_iterator it_end = bibfiles_.end();
 147         odocstringstream dbs;
 148         for (; it != it_end; ++it) {
 149                 string utf8input = removeExtension(it->availableFile().absFilename());
 150                 string database =
 151                         normalizeName(buffer(), runparams, utf8input, ".bib");
 152                 FileName const try_in_file =
 153                         makeAbsPath(database + ".bib", buffer().filePath());
 154                 bool const not_from_texmf = try_in_file.isReadableFile();
 155
 156                 if (!runparams.inComment && !runparams.dryrun && !runparams.nice &&
 157                     not_from_texmf) {
 158
 159                         // mangledFilename() needs the extension
 160                         DocFileName const in_file = DocFileName(try_in_file);
 161                         database = removeExtension(in_file.mangledFilename());
 162                         FileName const out_file = makeAbsPath(database + ".bib",
 163                                         buffer().masterBuffer()->temppath());
 164
 165                         bool const success = in_file.copyTo(out_file);
 166                         if (!success) {
 167                                 lyxerr << "Failed to copy '" << in_file
 168                                        << "' to '" << out_file << "'"
 169                                        << endl;
 170                         }
 171                 } else if (!runparams.inComment && runparams.nice && not_from_texmf &&
 172                            !isValidLaTeXFilename(database)) {
 173                                 frontend::Alert::warning(_("Invalid filename"),
 174                                                          _("The following filename is likely to cause trouble "
 175                                                            "when running the exported file through LaTeX: ") +
 176                                                             from_utf8(database));
 177                 }
 178
 179                 if (it != bibfiles_.begin())
 180                         dbs << ',';
 181                 // FIXME UNICODE
 182                 dbs << from_utf8(latex_path(database));
 183         }
 184         docstring const db_out = dbs.str();
 185
 186         // Post this warning only once.
 187         static bool warned_about_spaces = false;
 188         if (!warned_about_spaces &&
 189             runparams.nice && db_out.find(' ') != docstring::npos) {
 190                 warned_about_spaces = true;
 191
 192                 Alert::warning(_("Export Warning!"),
 193                                _("There are spaces in the paths to your BibTeX databases.\n"
 194                                               "BibTeX will be unable to find them."));
 195         }
 196
 197         // Style-Options
 198         string style = to_utf8(getParam("options")); // maybe empty! and with bibtotoc
 199         string bibtotoc;
 200         if (prefixIs(style, "bibtotoc")) {
 201                 bibtotoc = "bibtotoc";
 202                 if (contains(style, ','))
 203                         style = split(style, bibtotoc, ',');
 204         }
 205
 206         // line count
 207         int nlines = 0;
 208
 209         if (!style.empty()) {
 210                 string base = normalizeName(buffer(), runparams, style, ".bst");
 211                 FileName const try_in_file =
 212                         makeAbsPath(base + ".bst", buffer().filePath());
 213                 bool const not_from_texmf = try_in_file.isReadableFile();
 214                 // If this style does not come from texmf and we are not
 215                 // exporting to .tex copy it to the tmp directory.
 216                 // This prevents problems with spaces and 8bit charcaters
 217                 // in the file name.
 218                 if (!runparams.inComment && !runparams.dryrun && !runparams.nice &&
 219                     not_from_texmf) {
 220                         // use new style name
 221                         DocFileName const in_file = DocFileName(try_in_file);
 222                         base = removeExtension(in_file.mangledFilename());
 223                         FileName const out_file = makeAbsPath(base + ".bst",
 224                                         buffer().masterBuffer()->temppath());
 225                         bool const success = in_file.copyTo(out_file);
 226                         if (!success) {
 227                                 lyxerr << "Failed to copy '" << in_file
 228                                        << "' to '" << out_file << "'"
 229                                        << endl;
 230                         }
 231                 }
 232                 // FIXME UNICODE
 233                 os << "\\bibliographystyle{"
 234                    << from_utf8(latex_path(normalizeName(buffer(), runparams, base, ".bst")))
 235                    << "}\n";
 236                 nlines += 1;
 237         }
 238
 239         // Post this warning only once.
 240         static bool warned_about_bst_spaces = false;
 241         if (!warned_about_bst_spaces && runparams.nice && contains(style, ' ')) {
 242                 warned_about_bst_spaces = true;
 243                 Alert::warning(_("Export Warning!"),
 244                                _("There are spaces in the path to your BibTeX style file.\n"
 245                                               "BibTeX will be unable to find it."));
 246         }
 247
 248         if (!db_out.empty() && buffer().params().use_bibtopic) {
 249                 os << "\\begin{btSect}{" << db_out << "}\n";
 250                 docstring btprint = getParam("btprint");
 251                 if (btprint.empty())
 252                         // default
 253                         btprint = from_ascii("btPrintCited");
 254                 os << "\\" << btprint << "\n"
 255                    << "\\end{btSect}\n";
 256                 nlines += 3;
 257         }
 258
 259         // bibtotoc-Option
 260         if (!bibtotoc.empty() && !buffer().params().use_bibtopic) {
 261                 if (buffer().params().documentClass().hasLaTeXLayout("chapter")) {
 262                         if (buffer().params().sides == OneSide) {
 263                                 // oneside
 264                                 os << "\\clearpage";
 265                         } else {
 266                                 // twoside
 267                                 os << "\\cleardoublepage";
 268                         }
 269                         os << "\\addcontentsline{toc}{chapter}{\\bibname}";
 270                 } else if (buffer().params().documentClass().hasLaTeXLayout("section"))
 271                         os << "\\addcontentsline{toc}{section}{\\refname}";
 272         }
 273
 274         if (!db_out.empty() && !buffer().params().use_bibtopic) {
 275                 docstring btprint = getParam("btprint");
 276                 if (btprint == "btPrintAll") {
 277                         os << "\\nocite{*}\n";
 278                         nlines += 1;
 279                 }
 280                 os << "\\bibliography{" << db_out << "}\n";
 281                 nlines += 1;
 282         }
 283
 284         return nlines;
 285 }
 286
 287
 288 EmbeddedFileList InsetBibtex::embeddedFiles() const
 289 {
 290         return bibfiles_;
 291 }
 292
 293 namespace {
 294
 295         // methods for parsing bibtex files
 296
 297         typedef map<docstring, docstring> VarMap;
 298
 299         /// remove whitespace characters, optionally a single comma,
 300         /// and further whitespace characters from the stream.
 301         /// @return true if a comma was found, false otherwise
 302         ///
 303         bool removeWSAndComma(idocfstream & ifs) {
 304                 char_type ch;
 305
 306                 if (!ifs)
 307                         return false;
 308
 309                 // skip whitespace
 310                 do {
 311                         ifs.get(ch);
 312                 } while (ifs && isSpace(ch));
 313
 314                 if (!ifs)
 315                         return false;
 316
 317                 if (ch != ',') {
 318                         ifs.putback(ch);
 319                         return false;
 320                 }
 321
 322                 // skip whitespace
 323                 do {
 324                         ifs.get(ch);
 325                 } while (ifs && isSpace(ch));
 326
 327                 if (ifs) {
 328                         ifs.putback(ch);
 329                 }
 330
 331                 return true;
 332         }
 333
 334
 335         enum charCase {
 336                 makeLowerCase,
 337                 keepCase
 338         };
 339
 340         /// remove whitespace characters, read characer sequence
 341         /// not containing whitespace characters or characters in
 342         /// delimChars, and remove further whitespace characters.
 343         ///
 344         /// @return true if a string of length > 0 could be read.
 345         ///
 346         bool readTypeOrKey(docstring & val, idocfstream & ifs,
 347                 docstring const & delimChars, docstring const &illegalChars,
 348                 charCase chCase) {
 349
 350                 char_type ch;
 351
 352                 val.clear();
 353
 354                 if (!ifs)
 355                         return false;
 356
 357                 // skip whitespace
 358                 do {
 359                         ifs.get(ch);
 360                 } while (ifs && isSpace(ch));
 361
 362                 if (!ifs)
 363                         return false;
 364
 365                 // read value
 366                 bool legalChar = true;
 367                 while (ifs && !isSpace(ch) &&
 368                                                  delimChars.find(ch) == docstring::npos &&
 369                                                  (legalChar = (illegalChars.find(ch) == docstring::npos))
 370                                         )
 371                 {
 372                         if (chCase == makeLowerCase)
 373                                 val += lowercase(ch);
 374                         else
 375                                 val += ch;
 376                         ifs.get(ch);
 377                 }
 378
 379                 if (!legalChar) {
 380                         ifs.putback(ch);
 381                         return false;
 382                 }
 383
 384                 // skip whitespace
 385                 while (ifs && isSpace(ch)) {
 386                         ifs.get(ch);
 387                 }
 388
 389                 if (ifs) {
 390                         ifs.putback(ch);
 391                 }
 392
 393                 return val.length() > 0;
 394         }
 395
 396         /// read subsequent bibtex values that are delimited with a #-character.
 397         /// Concatenate all parts and replace names with the associated string in
 398         /// the variable strings.
 399         /// @return true if reading was successfull (all single parts were delimited
 400         /// correctly)
 401         bool readValue(docstring & val, idocfstream & ifs, const VarMap & strings) {
 402
 403                 char_type ch;
 404
 405                 val.clear();
 406
 407                 if (!ifs)
 408                         return false;
 409
 410                 do {
 411                         // skip whitespace
 412                         do {
 413                                 ifs.get(ch);
 414                         } while (ifs && isSpace(ch));
 415
 416                         if (!ifs)
 417                                 return false;
 418
 419                         // check for field type
 420                         if (isDigit(ch)) {
 421
 422                                 // read integer value
 423                                 do {
 424                                         val += ch;
 425                                         ifs.get(ch);
 426                                 } while (ifs && isDigit(ch));
 427
 428                                 if (!ifs)
 429                                         return false;
 430
 431                         } else if (ch == '"' || ch == '{') {
 432                                 // set end delimiter
 433                                 char_type delim = ch == '"' ? '"': '}';
 434
 435                                 //Skip whitespace
 436                                 do {
 437                                         ifs.get(ch);
 438                                 } while (ifs && isSpace(ch));
 439
 440                                 if (!ifs)
 441                                         return false;
 442
 443                                 //We now have the first non-whitespace character
 444                                 //We'll collapse adjacent whitespace.
 445                                 bool lastWasWhiteSpace = false;
 446
 447                                 // inside this delimited text braces must match.
 448                                 // Thus we can have a closing delimiter only
 449                                 // when nestLevel == 0
 450                                 int nestLevel = 0;
 451
 452                                 while (ifs && (nestLevel > 0 || ch != delim)) {
 453                                         if (isSpace(ch)) {
 454                                                 lastWasWhiteSpace = true;
 455                                                 ifs.get(ch);
 456                                                 continue;
 457                                         }
 458                                         //We output the space only after we stop getting
 459                                         //whitespace so as not to output any whitespace
 460                                         //at the end of the value.
 461                                         if (lastWasWhiteSpace) {
 462                                                 lastWasWhiteSpace = false;
 463                                                 val += ' ';
 464                                         }
 465
 466                                         val += ch;
 467
 468                                         // update nesting level
 469                                         switch (ch) {
 470                                                 case '{':
 471                                                         ++nestLevel;
 472                                                         break;
 473                                                 case '}':
 474                                                         --nestLevel;
 475                                                         if (nestLevel < 0) return false;
 476                                                         break;
 477                                         }
 478
 479                                         ifs.get(ch);
 480                                 }
 481
 482                                 if (!ifs)
 483                                         return false;
 484
 485                                 ifs.get(ch);
 486
 487                                 if (!ifs)
 488                                         return false;
 489
 490                         } else {
 491
 492                                 // reading a string name
 493                                 docstring strName;
 494
 495                                 while (ifs && !isSpace(ch) && ch != '#' && ch != ',' && ch != '}' && ch != ')') {
 496                                         strName += lowercase(ch);
 497                                         ifs.get(ch);
 498                                 }
 499
 500                                 if (!ifs)
 501                                         return false;
 502
 503                                 // replace the string with its assigned value or
 504                                 // discard it if it's not assigned
 505                                 if (strName.length()) {
 506                                         VarMap::const_iterator pos = strings.find(strName);
 507                                         if (pos != strings.end()) {
 508                                                 val += pos->second;
 509                                         }
 510                                 }
 511                         }
 512
 513                         // skip WS
 514                         while (ifs && isSpace(ch)) {
 515                                 ifs.get(ch);
 516                         }
 517
 518                         if (!ifs)
 519                                 return false;
 520
 521                         // continue reading next value on concatenate with '#'
 522                 } while (ch == '#');
 523
 524                 ifs.putback(ch);
 525
 526                 return true;
 527         }
 528 }
 529
 530
 531 // This method returns a comma separated list of Bibtex entries
 532 void InsetBibtex::fillWithBibKeys(BiblioInfo & keylist,
 533         InsetIterator const & /*di*/) const
 534 {
 535         EmbeddedFileList const files = embeddedFiles();
 536         for (vector<EmbeddedFile>::const_iterator it = files.begin();
 537              it != files.end(); ++ it) {
 538                 // This bibtex parser is a first step to parse bibtex files
 539                 // more precisely.
 540                 //
 541                 // - it reads the whole bibtex entry and does a syntax check
 542                 //   (matching delimiters, missing commas,...
 543                 // - it recovers from errors starting with the next @-character
 544                 // - it reads @string definitions and replaces them in the
 545                 //   field values.
 546                 // - it accepts more characters in keys or value names than
 547                 //   bibtex does.
 548                 //
 549                 // Officially bibtex does only support ASCII, but in practice
 550                 // you can use the encoding of the main document as long as
 551                 // some elements like keys and names are pure ASCII. Therefore
 552                 // we convert the file from the buffer encoding.
 553                 // We don't restrict keys to ASCII in LyX, since our own
 554                 // InsetBibitem can generate non-ASCII keys, and nonstandard
 555                 // 8bit clean bibtex forks exist.
 556
 557                 idocfstream ifs(it->availableFile().toFilesystemEncoding().c_str(),
 558                         ios_base::in, buffer().params().encoding().iconvName());
 559
 560                 char_type ch;
 561                 VarMap strings;
 562
 563                 while (ifs) {
 564
 565                         ifs.get(ch);
 566                         if (!ifs)
 567                                 break;
 568
 569                         if (ch != '@')
 570                                 continue;
 571
 572                         docstring entryType;
 573
 574                         if (!readTypeOrKey(entryType, ifs, from_ascii("{("),
 575                                            docstring(), makeLowerCase) || !ifs)
 576                                 continue;
 577
 578                         if (entryType == from_ascii("comment")) {
 579
 580                                 ifs.ignore(numeric_limits<int>::max(), '\n');
 581                                 continue;
 582                         }
 583
 584                         ifs.get(ch);
 585                         if (!ifs)
 586                                 break;
 587
 588                         if ((ch != '(') && (ch != '{')) {
 589                                 // invalid entry delimiter
 590                                 ifs.putback(ch);
 591                                 continue;
 592                         }
 593
 594                         // process the entry
 595                         if (entryType == from_ascii("string")) {
 596
 597                                 // read string and add it to the strings map
 598                                 // (or replace it's old value)
 599                                 docstring name;
 600                                 docstring value;
 601
 602                                 if (!readTypeOrKey(name, ifs, from_ascii("="),
 603                                                    from_ascii("#{}(),"), makeLowerCase) || !ifs)
 604                                         continue;
 605
 606                                 // next char must be an equal sign
 607                                 ifs.get(ch);
 608                                 if (!ifs || ch != '=')
 609                                         continue;
 610
 611                                 if (!readValue(value, ifs, strings))
 612                                         continue;
 613
 614                                 strings[name] = value;
 615
 616                         } else if (entryType == from_ascii("preamble")) {
 617
 618                                 // preamble definitions are discarded.
 619                                 // can they be of any use in lyx?
 620                                 docstring value;
 621
 622                                 if (!readValue(value, ifs, strings))
 623                                         continue;
 624
 625                         } else {
 626
 627                                 // Citation entry. Try to read the key.
 628                                 docstring key;
 629
 630                                 if (!readTypeOrKey(key, ifs, from_ascii(","),
 631                                                    from_ascii("}"), keepCase) || !ifs)
 632                                         continue;
 633
 634                                 /////////////////////////////////////////////
 635                                 // now we have a key, so we will add an entry
 636                                 // (even if it's empty, as bibtex does)
 637                                 //
 638                                 // we now read the field = value pairs.
 639                                 // all items must be separated by a comma. If
 640                                 // it is missing the scanning of this entry is
 641                                 // stopped and the next is searched.
 642                                 docstring fields;
 643                                 docstring name;
 644                                 docstring value;
 645                                 docstring commaNewline;
 646                                 docstring data;
 647                                 BibTeXInfo keyvalmap(key, entryType);
 648
 649                                 bool readNext = removeWSAndComma(ifs);
 650
 651                                 while (ifs && readNext) {
 652
 653                                         // read field name
 654                                         if (!readTypeOrKey(name, ifs, from_ascii("="),
 655                                                            from_ascii("{}(),"), makeLowerCase) || !ifs)
 656                                                 break;
 657
 658                                         // next char must be an equal sign
 659                                         ifs.get(ch);
 660                                         if (!ifs)
 661                                                 break;
 662                                         if (ch != '=') {
 663                                                 ifs.putback(ch);
 664                                                 break;
 665                                         }
 666
 667                                         // read field value
 668                                         if (!readValue(value, ifs, strings))
 669                                                 break;
 670
 671                                         keyvalmap[name] = value;
 672                                         data += "\n\n" + value;
 673                                         keylist.addFieldName(name);
 674                                         readNext = removeWSAndComma(ifs);
 675                                 }
 676
 677                                 // add the new entry
 678                                 keylist.addEntryType(entryType);
 679                                 keyvalmap.setAllData(data);
 680                                 keylist[key] = keyvalmap;
 681                         }
 682                 } //< searching '@'
 683         } //< for loop over files
 684 }
 685
 686
 687
 688 bool InsetBibtex::addDatabase(string const & db)
 689 {
 690         EmbeddedFile file(changeExtension(db, "bib"), buffer().filePath());
 691
 692         // only compare filename
 693         EmbeddedFileList::iterator it = bibfiles_.begin();
 694         EmbeddedFileList::iterator it_end = bibfiles_.end();
 695         for (; it != it_end; ++it)
 696                 if (it->absFilename() == file.absFilename())
 697                         return false;
 698
 699         bibfiles_.push_back(file);
 700         updateParam();
 701         return true;
 702 }
 703
 704
 705 bool InsetBibtex::delDatabase(string const & db)
 706 {
 707         EmbeddedFile file(changeExtension(db, "bib"), buffer().filePath());
 708
 709         // only compare filename
 710         EmbeddedFileList::iterator it = bibfiles_.begin();
 711         EmbeddedFileList::iterator it_end = bibfiles_.end();
 712         for (; it != it_end; ++it)
 713                 if (it->absFilename() == file.absFilename()) {
 714                         bibfiles_.erase(it);
 715                         updateParam();
 716                         return true;
 717                 }
 718         return false;
 719 }
 720
 721
 722 void InsetBibtex::validate(LaTeXFeatures & features) const
 723 {
 724         if (features.bufferParams().use_bibtopic)
 725                 features.require("bibtopic");
 726 }
 727
 728
 729 void InsetBibtex::createBibFiles(docstring const & bibParam,
 730         docstring const & embedParam) const
 731 {
 732         bibfiles_.clear();
 733
 734         string tmp;
 735         string emb;
 736
 737         string bibfiles = to_utf8(bibParam);
 738         string embedStatus = to_utf8(embedParam);
 739
 740         LYXERR(Debug::FILES, "Create bib files from parameters "
 741                 << bibfiles << " and " << embedStatus);
 742
 743         bibfiles = split(bibfiles, tmp, ',');
 744         embedStatus = split(embedStatus, emb, ',');
 745
 746         while (!tmp.empty()) {
 747                 EmbeddedFile file(changeExtension(tmp, "bib"), buffer().filePath());
 748
 749                 file.setInzipName(emb);
 750                 file.setEmbed(!emb.empty());
 751                 file.enable(buffer().embedded(), &buffer(), false);
 752                 bibfiles_.push_back(file);
 753                 // Get next file name
 754                 bibfiles = split(bibfiles, tmp, ',');
 755                 embedStatus = split(embedStatus, emb, ',');
 756         }
 757 }
 758
 759
 760 void InsetBibtex::updateParam()
 761 {
 762         docstring bibfiles;
 763         docstring embed;
 764
 765         bool first = true;
 766         for (EmbeddedFileList::iterator it = bibfiles_.begin();
 767                 it != bibfiles_.end(); ++it) {
 768                 if (!first) {
 769                         bibfiles += ',';
 770                         embed += ',';
 771                 } else
 772                         first = false;
 773                 bibfiles += from_utf8(it->outputFilename(buffer().filePath()));
 774                 if (it->embedded())
 775                         embed += from_utf8(it->inzipName());
 776         }
 777         setParam("bibfiles", bibfiles);
 778         setParam("embed", embed);
 779 }
 780
 781
 782 void InsetBibtex::registerEmbeddedFiles(EmbeddedFileList & files) const
 783 {
 784         if (bibfiles_.empty())
 785                 createBibFiles(params()["bibfiles"], params()["embed"]);
 786
 787         EmbeddedFileList::const_iterator it = bibfiles_.begin();
 788         EmbeddedFileList::const_iterator it_end = bibfiles_.end();
 789         for (; it != it_end; ++it)
 790                 files.registerFile(*it, this, buffer());
 791 }
 792
 793
 794 void InsetBibtex::updateEmbeddedFile(EmbeddedFile const & file)
 795 {
 796         // look for the item and update status
 797         for (EmbeddedFileList::iterator it = bibfiles_.begin();
 798                 it != bibfiles_.end(); ++it)
 799                 if (it->absFilename() == file.absFilename())
 800                         *it = file;
 801
 802         updateParam();
 803 }
 804
 805
 806 } // namespace lyx