src/LaTeX.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *           Copyright 1995 Matthias Ettrich
   6  *           Copyright 1995-2000 The LyX Team.
   7  *
   8  *           This file is Copyright 1996-2000
   9  *           Lars Gullik Bjønnes
  10  *
  11  * ======================================================
  12  */
  13
  14 #include <config.h>
  15
  16 #ifdef __GNUG__
  17 #pragma implementation
  18 #endif
  19 #include <fstream>
  20
  21 #include "support/filetools.h"
  22 #include "LaTeX.h"
  23 #include "support/FileInfo.h"
  24 #include "debug.h"
  25 #include "support/lyxlib.h"
  26 #include "support/syscall.h"
  27 #include "support/syscontr.h"
  28 #include "support/path.h"
  29 #include "support/LRegex.h"
  30 #include "support/LSubstring.h"
  31 #include "bufferlist.h"
  32 #include "minibuffer.h"
  33 #include "gettext.h"
  34 #include "lyx_gui_misc.h"
  35
  36 using std::ifstream;
  37 using std::getline;
  38 using std::endl;
  39 using std::vector;
  40
  41 // TODO: in no particular order
  42 // - get rid of the extern BufferList and the call to
  43 //   BufferList::updateIncludedTeXfiles, this should either
  44 //   be done before calling LaTeX::funcs or in a completely
  45 //   different way.
  46 // - the bibtex command options should be supported.
  47 // - the makeindex style files should be taken care of with
  48 //   the dependency mechanism.
  49 // - makeindex commandline options should be supported
  50 // - somewhere support viewing of bibtex and makeindex log files.
  51 // - we should perhaps also scan the bibtex log file
  52 // - we should perhaps also scan the bibtex log file
  53
  54 extern BufferList bufferlist;
  55
  56 /*
  57  * CLASS TEXERRORS
  58  */
  59
  60 void TeXErrors::insertError(int line, string const & error_desc,
  61                             string const & error_text)
  62 {
  63         Error newerr(line, error_desc, error_text);
  64         errors.push_back(newerr);
  65 }
  66
  67 /*
  68  * CLASS LaTeX
  69  */
  70
  71 LaTeX::LaTeX(string const & latex, string const & f, string const & p)
  72                 : cmd(latex), file(f), path(p)
  73 {
  74         num_errors = 0;
  75         depfile = file + ".dep";
  76         if (prefixIs(cmd, "pdf")) // Do we use pdflatex ?
  77                 depfile += "-pdf";
  78 }
  79
  80
  81 void LaTeX::deleteFilesOnError() const
  82 {
  83         // currently just a dummy function.
  84
  85         // What files do we have to delete?
  86
  87         // This will at least make latex do all the runs
  88         lyx::unlink(depfile);
  89
  90         // but the reason for the error might be in a generated file...
  91
  92         string ofname = OnlyFilename(file);
  93
  94         // bibtex file
  95         string bbl = ChangeExtension(ofname, ".bbl");
  96         lyx::unlink(bbl);
  97
  98         // makeindex file
  99         string ind = ChangeExtension(ofname, ".ind");
 100         lyx::unlink(ind);
 101
 102         // Also remove the aux file
 103         string aux = ChangeExtension(ofname, ".aux");
 104         lyx::unlink(aux);
 105 }
 106
 107
 108 int LaTeX::run(TeXErrors & terr, MiniBuffer * minib)
 109         // We know that this function will only be run if the lyx buffer
 110         // has been changed. We also know that a newly written .tex file
 111         // is always different from the previous one because of the date
 112         // in it. However it seems safe to run latex (at least) on time each
 113         // time the .tex file changes.
 114 {
 115         int scanres = LaTeX::NO_ERRORS;
 116         unsigned int count = 0; // number of times run
 117         num_errors = 0; // just to make sure.
 118         const unsigned int MAX_RUN = 6;
 119         DepTable head; // empty head
 120         bool rerun = false; // rerun requested
 121
 122         // The class LaTeX does not know the temp path.
 123         bufferlist.updateIncludedTeXfiles(lyx::getcwd()); //GetCWD());
 124
 125         // Never write the depfile if an error was encountered.
 126
 127         // 0
 128         // first check if the file dependencies exist:
 129         //     ->If it does exist
 130         //             check if any of the files mentioned in it have
 131         //             changed (done using a checksum).
 132         //                 -> if changed:
 133         //                        run latex once and
 134         //                        remake the dependency file
 135         //                 -> if not changed:
 136         //                        just return there is nothing to do for us.
 137         //     ->if it doesn't exist
 138         //             make it and
 139         //             run latex once (we need to run latex once anyway) and
 140         //             remake the dependency file.
 141         //
 142         FileInfo fi(depfile);
 143         bool run_bibtex = false;
 144         if (fi.exist()) {
 145                 // Read the dep file:
 146                 head.read(depfile);
 147                 // Update the checksums
 148                 head.update();
 149
 150                 lyxerr[Debug::DEPEND] << "Dependency file exists" << endl;
 151                 if (head.sumchange()) {
 152                         ++count;
 153                         lyxerr[Debug::DEPEND]
 154                                 << "Dependency file has changed" << endl;
 155                         lyxerr[Debug::LATEX]
 156                                 << "Run #" << count << endl;
 157                         WriteStatus(minib,
 158                                     string(_("LaTeX run number ")) + tostr(count));
 159                         this->operator()();
 160                         scanres = scanLogFile(terr);
 161                         if (scanres & LaTeX::ERRORS) {
 162                                 deleteFilesOnError();
 163                                 return scanres; // return on error
 164                         }
 165                         run_bibtex = scanAux(head);
 166                         if (run_bibtex)
 167                                 lyxerr[Debug::DEPEND]
 168                                         << "Bibtex demands rerun" << endl;
 169                 } else {
 170                         lyxerr[Debug::DEPEND] << "return no_change" << endl;
 171                         return LaTeX::NO_CHANGE;
 172                 }
 173         } else {
 174                 ++count;
 175                 lyxerr[Debug::DEPEND]
 176                         << "Dependency file does not exist" << endl;
 177
 178                 lyxerr[Debug::LATEX]
 179                         << "Run #" << count << endl;
 180                 head.insert(file, true);
 181                 WriteStatus(minib,
 182                             string(_("LaTeX run number ")) + tostr(count));
 183                 this->operator()();
 184                 scanres = scanLogFile(terr);
 185                 if (scanres & LaTeX::ERRORS) {
 186                         deleteFilesOnError();
 187                         return scanres; // return on error
 188                 }
 189
 190         }
 191
 192         // update the dependencies.
 193         deplog(head); // reads the latex log
 194         head.update();
 195
 196         // 0.5
 197         // At this point we must run external programs if needed.
 198         // makeindex will be run if a .idx file changed or was generated.
 199         // And if there were undefined citations or changes in references
 200         // the .aux file is checked for signs of bibtex. Bibtex is then run
 201         // if needed.
 202
 203         // run makeindex
 204         if (head.haschanged(OnlyFilename(ChangeExtension(file, ".idx")))) {
 205                 // no checks for now
 206                 lyxerr[Debug::LATEX] << "Running MakeIndex." << endl;
 207                 WriteStatus(minib, _("Running MakeIndex."));
 208                 rerun = runMakeIndex(OnlyFilename(ChangeExtension(file, ".idx")));
 209         }
 210
 211         // run bibtex
 212         if (scanres & LaTeX::UNDEF_CIT
 213             || scanres & LaTeX::RERUN
 214             || run_bibtex) {
 215                 // Here we must scan the .aux file and look for
 216                 // "\bibdata" and/or "\bibstyle". If one of those
 217                 // tags is found -> run bibtex and set rerun = true;
 218                 // no checks for now
 219                 lyxerr[Debug::LATEX] << "Running BibTeX." << endl;
 220                 WriteStatus(minib, _("Running BibTeX."));
 221                 rerun = runBibTeX(head);
 222         }
 223
 224         // 1
 225         // we know on this point that latex has been run once (or we just
 226         // returned) and the question now is to decide if we need to run
 227         // it any more. This is done by asking if any of the files in the
 228         // dependency file has changed. (remember that the checksum for
 229         // a given file is reported to have changed if it just was created)
 230         //     -> if changed or rerun == true:
 231         //             run latex once more and
 232         //             update the dependency structure
 233         //     -> if not changed:
 234         //             we does nothing at this point
 235         //
 236         if (rerun || head.sumchange()) {
 237                 rerun = false;
 238                 ++count;
 239                 lyxerr[Debug::DEPEND]
 240                         << "Dep. file has changed or rerun requested" << endl;
 241                 lyxerr[Debug::LATEX]
 242                         << "Run #" << count << endl;
 243                 WriteStatus(minib,
 244                             string(_("LaTeX run number ")) + tostr(count));
 245                 this->operator()();
 246                 scanres = scanLogFile(terr);
 247                 if (scanres & LaTeX::ERRORS) {
 248                         deleteFilesOnError();
 249                         return scanres; // return on error
 250                 }
 251
 252                 // update the depedencies
 253                 deplog(head); // reads the latex log
 254                 head.update();
 255         } else {
 256                 lyxerr[Debug::DEPEND] << "Dep. file has NOT changed" << endl;
 257         }
 258
 259         // 1.5
 260         // The inclusion of files generated by external programs like
 261         // makeindex or bibtex might have done changes to pagenumbereing,
 262         // etc. And because of this we must run the external programs
 263         // again to make sure everything is redone correctly.
 264         // Also there should be no need to run the external programs any
 265         // more after this.
 266
 267         // run makeindex if the <file>.idx has changed or was generated.
 268         if (head.haschanged(OnlyFilename(ChangeExtension(file, ".idx")))) {
 269                 // no checks for now
 270                 lyxerr[Debug::LATEX] << "Running MakeIndex." << endl;
 271                 WriteStatus(minib, _("Running MakeIndex."));
 272                 rerun = runMakeIndex(OnlyFilename(ChangeExtension(file, ".idx")));
 273         }
 274
 275         // 2
 276         // we will only run latex more if the log file asks for it.
 277         // or if the sumchange() is true.
 278         //     -> rerun asked for:
 279         //             run latex and
 280         //             remake the dependency file
 281         //             goto 2 or return if max runs are reached.
 282         //     -> rerun not asked for:
 283         //             just return (fall out of bottom of func)
 284         //
 285         while ((head.sumchange() || rerun || (scanres & LaTeX::RERUN))
 286                && count < MAX_RUN) {
 287                 // Yes rerun until message goes away, or until
 288                 // MAX_RUNS are reached.
 289                 rerun = false;
 290                 ++count;
 291                 lyxerr[Debug::LATEX] << "Run #" << count << endl;
 292                 WriteStatus(minib, string(_("LaTeX run number ")) + tostr(count));
 293                 this->operator()();
 294                 scanres = scanLogFile(terr);
 295                 if (scanres & LaTeX::ERRORS) {
 296                         deleteFilesOnError();
 297                         return scanres; // return on error
 298                 }
 299
 300                 // keep this updated
 301                 head.update();
 302         }
 303
 304         // Write the dependencies to file.
 305         head.write(depfile);
 306         lyxerr[Debug::LATEX] << "Done." << endl;
 307         return scanres;
 308 }
 309
 310
 311 int LaTeX::operator()()
 312 {
 313 #ifndef __EMX__
 314         string tmp = cmd + ' ' + QuoteName(file) + " > /dev/null";
 315 #else // cmd.exe (OS/2) causes SYS0003 error at "/dev/null"
 316         string tmp = cmd + ' ' + file + " > nul";
 317 #endif
 318         Systemcalls one;
 319         return one.startscript(Systemcalls::System, tmp);
 320 }
 321
 322
 323 bool LaTeX::runMakeIndex(string const & f)
 324 {
 325         lyxerr[Debug::LATEX] << "idx file has been made,"
 326                 " running makeindex on file "
 327                              <<  f << endl;
 328
 329         // It should be possible to set the switches for makeindex
 330         // sorting style and such. It would also be very convenient
 331         // to be able to make style files from within LyX. This has
 332         // to come for a later time. (0.13 perhaps?)
 333         string tmp = "makeindex -c -q ";
 334         tmp += f;
 335         Systemcalls one;
 336         one.startscript(Systemcalls::System, tmp);
 337         return true;
 338 }
 339
 340 // scanAux may return a wrong result if there are more than two bibliographies,
 341 // and after LaTeX-ing the file, the user changes the order of the bibliography
 342 // and run LaTeX again. However, in this case, bibtopic prints a warning message which
 343 // is caught by scanLogFile.
 344 bool LaTeX::scanAux(DepTable & dep)
 345 {
 346         // if any of the bib file has changed we don't have to
 347         // check the .aux file.
 348         if (dep.extchanged(".bib")
 349             || dep.extchanged(".bst")) return true;
 350
 351         string aux = OnlyFilename(ChangeExtension(file, ".aux"));
 352         return !scanAuxFiles(aux, dep, false).empty();
 353 }
 354
 355 vector<string> const
 356 LaTeX::scanAuxFiles(string const & file, DepTable & dep, bool insert)
 357 {
 358         vector<string> result;
 359         if (scanAuxFile(file, dep, insert)) {
 360                 result.push_back(file);
 361                 if (!insert)
 362                         return result;
 363         }
 364
 365         for (int i = 1; i < 1000; ++i) {
 366                 string file2 = ChangeExtension(file, "") + "." + tostr(i)
 367                         + ".aux";
 368                 FileInfo fi(file2);
 369                 if (!fi.exist())
 370                         return result;
 371                 if (scanAuxFile(file2, dep, insert)) {
 372                         result.push_back(file2);
 373                         if (!insert)
 374                                 return result;
 375                 }
 376         }
 377         return result;
 378 }
 379
 380
 381 // If insert = true, then scanAuxFile returns true iff the aux file contains
 382 // a bibtex database (i.e. a \bibdata command), or it inputs another auxfile which
 383 // contains a bibtex database.
 384 // Also the dep is updated for all bibtex databases and bibtex styles in the aux
 385 // file.
 386 // Ideally, scanAuxFile should return true iff one of the bibtex database/styles has
 387 // changes from previous run, or a new bibtex database/styles was added to the aux file.
 388 // However, it is probably not worth the effort.
 389 //
 390 // If insert = false, then scanAuxFile returns true iff the aux file contains a
 391 // bibtex database or a bibtex style that do not appear in dep.
 392 //
 393 bool LaTeX::scanAuxFile(string const & file, DepTable & dep, bool insert)
 394 {
 395         lyxerr[Debug::LATEX] << "Scanning aux file: " << file << endl;
 396
 397         ifstream ifs(file.c_str());
 398         string token;
 399         LRegex reg1("\\\\bibdata\\{([^}]+)\\}");
 400         LRegex reg2("\\\\bibstyle\\{([^}]+)\\}");
 401         LRegex reg3("\\\\@input\\{([^}]+)\\}");
 402         bool result = false;
 403         while (getline(ifs, token)) {
 404                 if (reg1.exact_match(token)) {
 405                         if (insert)
 406                                 result = true;
 407                         LRegex::SubMatches const & sub = reg1.exec(token);
 408                         string data = LSubstring(token, sub[1].first,
 409                                                  sub[1].second);
 410                         // data is now all the bib files separated by ','
 411                         // get them one by one and pass them to the helper
 412                         while (!data.empty()) {
 413                                 string l;
 414                                 data = split(data, l, ',');
 415                                 string full_l =
 416                                         findtexfile(ChangeExtension(l, "bib"),
 417                                                     "bib");
 418                                 lyxerr[Debug::LATEX] << "Bibtex database: `"
 419                                                      << full_l << "'" << endl;
 420                                 if (!full_l.empty()) {
 421                                         if (insert)
 422                                                 // add full_l to the dep file.
 423                                                 dep.insert(full_l, true);
 424                                         else
 425                                                 if (!dep.exist(full_l))
 426                                                         return true;
 427                                 }
 428                         }
 429                 } else if (reg2.exact_match(token)) {
 430                         LRegex::SubMatches const & sub = reg2.exec(token);
 431                         string style = LSubstring(token, sub[1].first,
 432                                                   sub[1].second);
 433                         // token is now the style file
 434                         // pass it to the helper
 435                         string full_l =
 436                                 findtexfile(ChangeExtension(style, "bst"),
 437                                             "bst");
 438                         lyxerr[Debug::LATEX] << "Bibtex style: `"
 439                                              << full_l << "'" << endl;
 440                         if (!full_l.empty()) {
 441                                 if (insert)
 442                                         // add full_l to the dep file.
 443                                         dep.insert(full_l, true);
 444                                 else
 445                                         if (!dep.exist(full_l))
 446                                                 return true;
 447                         }
 448                 } else if (reg3.exact_match(token)) {
 449                         LRegex::SubMatches const & sub = reg3.exec(token);
 450                         string file2 = LSubstring(token, sub[1].first,
 451                                                   sub[1].second);
 452                         result |=  scanAuxFile(file2, dep, insert);
 453                         if (result && !insert)
 454                                 return true;
 455                 }
 456         }
 457         return result;
 458 }
 459
 460
 461 bool LaTeX::runBibTeX(DepTable & dep)
 462 {
 463         // Since a run of Bibtex mandates more latex runs it is ok to
 464         // remove all ".bib" and ".bst" files, it is also required to
 465         // discover style and database changes.
 466         dep.remove_files_with_extension(".bib");
 467         dep.remove_files_with_extension(".bst");
 468         string aux = OnlyFilename(ChangeExtension(file, ".aux"));
 469         vector<string> const aux_files = scanAuxFiles(aux, dep, true);
 470         // Run bibtex on each of the aux files in
 471         for (vector<string>::const_iterator it = aux_files.begin();
 472              it != aux_files.end(); ++it) {
 473                 string tmp = "bibtex ";
 474                 tmp += OnlyFilename(ChangeExtension(*it, string()));
 475                 Systemcalls one;
 476                 one.startscript(Systemcalls::System, tmp);
 477         }
 478         // Return whether bibtex was run
 479         return !aux_files.empty();
 480 }
 481
 482
 483 int LaTeX::scanLogFile(TeXErrors & terr)
 484 {
 485         int last_line = -1;
 486         int line_count = 1;
 487         int retval = NO_ERRORS;
 488         string tmp = OnlyFilename(ChangeExtension(file, ".log"));
 489         lyxerr[Debug::LATEX] << "Log file: " << tmp << endl;
 490         ifstream ifs(tmp.c_str());
 491
 492         string token;
 493         while (getline(ifs, token)) {
 494                 lyxerr[Debug::LATEX] << "Log line: " << token << endl;
 495
 496                 if (token.empty())
 497                         continue;
 498
 499                 if (prefixIs(token, "LaTeX Warning:")) {
 500                         // Here shall we handle different
 501                         // types of warnings
 502                         retval |= LATEX_WARNING;
 503                         lyxerr[Debug::LATEX] << "LaTeX Warning." << endl;
 504                         if (contains(token, "Rerun to get cross-references")) {
 505                                 retval |= RERUN;
 506                                 lyxerr[Debug::LATEX]
 507                                         << "We should rerun." << endl;
 508                         } else if (contains(token, "Citation")
 509                                    && contains(token, "on page")
 510                                    && contains(token, "undefined")) {
 511                                 retval |= UNDEF_CIT;
 512                         }
 513                 } else if (prefixIs(token, "Package")) {
 514                         // Package warnings
 515                         retval |= PACKAGE_WARNING;
 516                         if (contains(token, "natbib Warning:")) {
 517                                 // Natbib warnings
 518                                 if (contains(token, "Citation")
 519                                     && contains(token, "on page")
 520                                     && contains(token, "undefined")) {
 521                                         retval |= UNDEF_CIT;
 522                                 }
 523                         } else if (contains(token, "run BibTeX")) {
 524                                 retval |= UNDEF_CIT;
 525                         } else if (contains(token, "Rerun LaTeX.")) {
 526                                 // at least longtable.sty might use this.
 527                                 retval |= RERUN;
 528                         }
 529                 } else if (prefixIs(token, "! ")) {
 530                         // Ok, we have something that looks like a TeX Error
 531                         // but what do we really have.
 532
 533                         // Just get the error description:
 534                         string desc(token, 2);
 535                         if (contains(token, "LaTeX Error:"))
 536                                 retval |= LATEX_ERROR;
 537                         // get the next line
 538                         string tmp;
 539                         int count = 0;
 540                         do {
 541                                 if (!getline(ifs, tmp))
 542                                         break;
 543                                 if (++count > 10)
 544                                         break;
 545                         } while (!prefixIs(tmp, "l."));
 546                         if (prefixIs(tmp, "l.")) {
 547                                 // we have a latex error
 548                                 retval |=  TEX_ERROR;
 549                                 // get the line number:
 550                                 int line = 0;
 551                                 sscanf(tmp.c_str(), "l.%d", &line);
 552                                 // get the rest of the message:
 553                                 string errstr(tmp, tmp.find(' '));
 554                                 errstr += '\n';
 555                                 getline(ifs, tmp);
 556                                 while (!contains(errstr, "l.")
 557                                        && !tmp.empty()
 558                                        && !prefixIs(tmp, "! ")
 559                                        && !contains(tmp, "(job aborted")) {
 560                                         errstr += tmp;
 561                                         errstr += "\n";
 562                                         getline(ifs, tmp);
 563                                 }
 564                                 lyxerr[Debug::LATEX]
 565                                         << "line: " << line << '\n'
 566                                         << "Desc: " << desc << '\n'
 567                                         << "Text: " << errstr << endl;
 568                                 if (line == last_line)
 569                                         ++line_count;
 570                                 else {
 571                                         line_count = 1;
 572                                         last_line = line;
 573                                 }
 574                                 if (line_count <= 5) {
 575                                         terr.insertError(line, desc, errstr);
 576                                         ++num_errors;
 577                                 }
 578                         }
 579                 } else {
 580                         // information messages, TeX warnings and other
 581                         // warnings we have not caught earlier.
 582                         if (prefixIs(token, "Overfull ")) {
 583                                 retval |= TEX_WARNING;
 584                         } else if (prefixIs(token, "Underfull ")) {
 585                                 retval |= TEX_WARNING;
 586                         } else if (contains(token, "Rerun to get citations")) {
 587                                 // Natbib seems to use this.
 588                                 retval |= RERUN;
 589                         } else if (contains(token, "No pages of output")) {
 590                                 // A dvi file was not created
 591                                 retval |= NO_OUTPUT;
 592                         } else if (contains(token, "That makes 100 errors")) {
 593                                 // More than 100 errors were reprted
 594                                 retval |= TOO_MANY_ERRORS;
 595                         }
 596                 }
 597         }
 598         lyxerr[Debug::LATEX] << "Log line: " << token << endl;
 599         return retval;
 600 }
 601
 602
 603 void LaTeX::deplog(DepTable & head)
 604 {
 605         // This function reads the LaTeX log file end extracts all the external
 606         // files used by the LaTeX run. The files are then entered into the
 607         // dependency file.
 608
 609         string logfile = OnlyFilename(ChangeExtension(file, ".log"));
 610
 611         LRegex reg1(")* *\\(([^ \\)]+).*");
 612         LRegex reg2("File: ([^ ]+).*");
 613         LRegex reg3("No file ([^ ]+)\\..*");
 614         LRegex reg4("\\\\openout[0-9]+.*=.*`([^ ]+)'\\..*");
 615         LRegex unwanted("^.*\\.(aux|log|dvi|bbl|ind|glo)$");
 616
 617         ifstream ifs(logfile.c_str());
 618         while (ifs) {
 619                 // Ok, the scanning of files here is not sufficient.
 620                 // Sometimes files are named by "File: xxx" only
 621                 // So I think we should use some regexps to find files instead.
 622                 // "(\([^ ]+\)"   should match the "(file " variant
 623                 // "File: \([^ ]+\)" should match the "File: file" variant
 624                 string foundfile;
 625                 string token;
 626                 getline(ifs, token);
 627                 if (token.empty()) continue;
 628
 629                 if (reg1.exact_match(token)) {
 630                         LRegex::SubMatches const & sub = reg1.exec(token);
 631                         foundfile = LSubstring(token, sub[1].first,
 632                                                sub[1].second);
 633                 } else if (reg2.exact_match(token)) {
 634                         LRegex::SubMatches const & sub = reg2.exec(token);
 635                         foundfile = LSubstring(token, sub[1].first,
 636                                                sub[1].second);
 637                 } else if (reg3.exact_match(token)) {
 638                         LRegex::SubMatches const & sub = reg3.exec(token);
 639                         foundfile = LSubstring(token, sub[1].first,
 640                                                sub[1].second);
 641                 } else if (reg4.exact_match(token)) {
 642                         LRegex::SubMatches const & sub = reg4.exec(token);
 643                         foundfile = LSubstring(token, sub[1].first,
 644                                                sub[1].second);
 645                 } else {
 646                         continue;
 647                 }
 648
 649                 lyxerr[Debug::DEPEND] << "Found file: "
 650                                       << foundfile << endl;
 651
 652                 // Ok now we found a file.
 653                 // Now we should make sure that this is a file that we can
 654                 // access through the normal paths.
 655                 // We will not try any fancy search methods to
 656                 // find the file.
 657
 658                 // (1) foundfile is an
 659                 //     absolute path and should
 660                 //     be inserted.
 661                 if (AbsolutePath(foundfile)) {
 662                         lyxerr[Debug::DEPEND] << "AbsolutePath file: "
 663                                               << foundfile << endl;
 664                         // On initial insert we want to do the update at once
 665                         // since this file can not be a file generated by
 666                         // the latex run.
 667                         head.insert(foundfile, true);
 668                         continue;
 669                 }
 670
 671                 // (2) foundfile is in the tmpdir
 672                 //     insert it into head
 673                 if (FileInfo(OnlyFilename(foundfile)).exist()) {
 674                         if (unwanted.exact_match(foundfile)) {
 675                                 lyxerr[Debug::DEPEND]
 676                                         << "We don't want "
 677                                         << OnlyFilename(foundfile)
 678                                         << " in the dep file"
 679                                         << endl;
 680                         } else if (suffixIs(foundfile, ".tex")) {
 681                                 // This is a tex file generated by LyX
 682                                 // and latex is not likely to change this
 683                                 // during its runs.
 684                                 lyxerr[Debug::DEPEND]
 685                                         << "Tmpdir TeX file: "
 686                                         << OnlyFilename(foundfile)
 687                                         << endl;
 688                                 head.insert(foundfile, true);
 689                         } else {
 690                                 lyxerr[Debug::DEPEND]
 691                                         << "In tmpdir file:"
 692                                         << OnlyFilename(foundfile)
 693                                         << endl;
 694                                 head.insert(OnlyFilename(foundfile));
 695                         }
 696                         continue;
 697                 }
 698                 lyxerr[Debug::DEPEND]
 699                         << "Not a file or we are unable to find it."
 700                         << endl;
 701         }
 702 }