src/converter.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include <cctype>
  18
  19 #include "converter.h"
  20 #include "lyxrc.h"
  21 #include "buffer.h"
  22 #include "bufferview_funcs.h"
  23 #include "LaTeX.h"
  24 #include "frontends/LyXView.h"
  25 #include "lyx_cb.h" // ShowMessage()
  26 #include "gettext.h"
  27 #include "BufferView.h"
  28 #include "debug.h"
  29
  30 #include "frontends/Alert.h"
  31
  32 #include "support/filetools.h"
  33 #include "support/lyxfunctional.h"
  34 #include "support/path.h"
  35 #include "support/systemcall.h"
  36
  37 #ifndef CXX_GLOBAL_CSTD
  38 using std::isdigit;
  39 #endif
  40
  41 using std::vector;
  42 using std::queue;
  43 using std::endl;
  44 using std::fill;
  45 using std::find_if;
  46 using std::reverse;
  47 using std::sort;
  48
  49 namespace {
  50
  51 string const token_from("$$i");
  52 string const token_base("$$b");
  53 string const token_to("$$o");
  54 string const token_path("$$p");
  55
  56 //////////////////////////////////////////////////////////////////////////////
  57
  58 inline
  59 string const add_options(string const & command, string const & options)
  60 {
  61         string head;
  62         string const tail = split(command, head, ' ');
  63         return head + ' ' + options + ' ' + tail;
  64 }
  65
  66 } // namespace anon
  67
  68 //////////////////////////////////////////////////////////////////////////////
  69
  70 bool Format::dummy() const
  71 {
  72         return extension().empty();
  73 }
  74
  75
  76 bool Format::isChildFormat() const
  77 {
  78         if (name_.empty())
  79                 return false;
  80         return isdigit(name_[name_.length() - 1]);
  81 }
  82
  83
  84 string const Format::parentFormat() const
  85 {
  86         return name_.substr(0, name_.length() - 1);
  87 }
  88
  89 //////////////////////////////////////////////////////////////////////////////
  90
  91 // This method should return a reference, and throw an exception
  92 // if the format named name cannot be found (Lgb)
  93 Format const * Formats::getFormat(string const & name) const
  94 {
  95         FormatList::const_iterator cit =
  96                 find_if(formatlist.begin(), formatlist.end(),
  97                         lyx::compare_memfun(&Format::name, name));
  98         if (cit != formatlist.end())
  99                 return &(*cit);
 100         else
 101                 return 0;
 102 }
 103
 104
 105 int Formats::getNumber(string const & name) const
 106 {
 107         FormatList::const_iterator cit =
 108                 find_if(formatlist.begin(), formatlist.end(),
 109                         lyx::compare_memfun(&Format::name, name));
 110         if (cit != formatlist.end())
 111                 return cit - formatlist.begin();
 112         else
 113                 return -1;
 114 }
 115
 116
 117 void Formats::add(string const & name)
 118 {
 119         if (!getFormat(name))
 120                 add(name, name, name, string());
 121 }
 122
 123
 124 void Formats::add(string const & name, string const & extension,
 125                   string const & prettyname, string const & shortcut)
 126 {
 127         FormatList::iterator it =
 128                 find_if(formatlist.begin(), formatlist.end(),
 129                         lyx::compare_memfun(&Format::name, name));
 130         if (it == formatlist.end())
 131                 formatlist.push_back(Format(name, extension, prettyname,
 132                                             shortcut, ""));
 133         else {
 134                 string viewer = it->viewer();
 135                 *it = Format(name, extension, prettyname, shortcut, viewer);
 136         }
 137 }
 138
 139
 140 void Formats::erase(string const & name)
 141 {
 142         FormatList::iterator it =
 143                 find_if(formatlist.begin(), formatlist.end(),
 144                         lyx::compare_memfun(&Format::name, name));
 145         if (it != formatlist.end())
 146                 formatlist.erase(it);
 147 }
 148
 149
 150 void Formats::sort()
 151 {
 152         std::sort(formatlist.begin(), formatlist.end());
 153 }
 154
 155
 156 void Formats::setViewer(string const & name, string const & command)
 157 {
 158         add(name);
 159         FormatList::iterator it =
 160                 find_if(formatlist.begin(), formatlist.end(),
 161                         lyx::compare_memfun(&Format::name, name));
 162         if (it != formatlist.end())
 163                 it->setViewer(command);
 164 }
 165
 166
 167 bool Formats::view(Buffer const * buffer, string const & filename,
 168                    string const & format_name) const
 169 {
 170         if (filename.empty())
 171                 return false;
 172
 173         Format const * format = getFormat(format_name);
 174         if (format && format->viewer().empty() &&
 175             format->isChildFormat())
 176                 format = getFormat(format->parentFormat());
 177         if (!format || format->viewer().empty()) {
 178                 Alert::alert(_("Cannot view file"),
 179                            _("No information for viewing ")
 180                            + prettyName(format_name));
 181                            return false;
 182         }
 183
 184         string command = format->viewer();
 185
 186         if (format_name == "dvi" &&
 187             !lyxrc.view_dvi_paper_option.empty()) {
 188                 command += " " + lyxrc.view_dvi_paper_option;
 189                 string paper_size = converters.papersize(buffer);
 190                 if (paper_size == "letter")
 191                         paper_size = "us";
 192                 command += " " + paper_size;
 193                 if (buffer->params.orientation
 194                     == BufferParams::ORIENTATION_LANDSCAPE)
 195                         command += 'r';
 196         }
 197
 198         if (!contains(command, token_from))
 199                 command += " " + token_from;
 200
 201         command = subst(command, token_from,
 202                         QuoteName(OnlyFilename(filename)));
 203         command = subst(command, token_path, QuoteName(OnlyPath(filename)));
 204
 205         lyxerr[Debug::FILES] << "Executing command: " << command << endl;
 206         ShowMessage(buffer, _("Executing command:"), command);
 207
 208         Path p(OnlyPath(filename));
 209         Systemcall one;
 210         int const res = one.startscript(Systemcall::DontWait, command);
 211
 212         if (res) {
 213                 Alert::alert(_("Cannot view file"),
 214                            _("Error while executing"),
 215                            command.substr(0, 50));
 216                 return false;
 217         }
 218         return true;
 219 }
 220
 221
 222 string const Formats::prettyName(string const & name) const
 223 {
 224         Format const * format = getFormat(name);
 225         if (format)
 226                 return format->prettyname();
 227         else
 228                 return name;
 229 }
 230
 231
 232 string const Formats::extension(string const & name) const
 233 {
 234         Format const * format = getFormat(name);
 235         if (format)
 236                 return format->extension();
 237         else
 238                 return name;
 239 }
 240
 241 //////////////////////////////////////////////////////////////////////////////
 242
 243 void Converter::readFlags()
 244 {
 245         string flag_list(flags);
 246         while (!flag_list.empty()) {
 247                 string flag_name, flag_value;
 248                 flag_list = split(flag_list, flag_value, ',');
 249                 flag_value = split(flag_value, flag_name, '=');
 250                 if (flag_name == "latex")
 251                         latex = true;
 252                 else if (flag_name == "originaldir")
 253                         original_dir = true;
 254                 else if (flag_name == "needaux")
 255                         need_aux = true;
 256                 else if (flag_name == "resultdir")
 257                         result_dir = (flag_value.empty())
 258                                 ? token_base : flag_value;
 259                 else if (flag_name == "resultfile")
 260                         result_file = flag_value;
 261                 else if (flag_name == "parselog")
 262                         parselog = flag_value;
 263         }
 264         if (!result_dir.empty() && result_file.empty())
 265                 result_file = "index." + formats.extension(to);
 266         //if (!contains(command, token_from))
 267         //      latex = true;
 268 }
 269
 270
 271 bool operator<(Converter const & a, Converter const & b)
 272 {
 273         // use the compare_ascii_no_case instead of compare_no_case,
 274         // because in turkish, 'i' is not the lowercase version of 'I',
 275         // and thus turkish locale breaks parsing of tags.
 276         int const i = compare_ascii_no_case(a.From->prettyname(),
 277                                             b.From->prettyname());
 278         if (i == 0)
 279                 return compare_ascii_no_case(a.To->prettyname(), b.To->prettyname())
 280                         < 0;
 281         else
 282                 return i < 0;
 283 }
 284
 285 //////////////////////////////////////////////////////////////////////////////
 286
 287 class compare_Converter {
 288 public:
 289         compare_Converter(string const & f, string const & t)
 290                 : from(f), to(t) {}
 291         bool operator()(Converter const & c) {
 292                 return c.from == from && c.to == to;
 293         }
 294 private:
 295         string const & from;
 296         string const & to;
 297 };
 298
 299
 300 Converter const * Converters::getConverter(string const & from,
 301                                             string const & to)
 302 {
 303         ConverterList::const_iterator cit =
 304                 find_if(converterlist_.begin(), converterlist_.end(),
 305                         compare_Converter(from, to));
 306         if (cit != converterlist_.end())
 307                 return &(*cit);
 308         else
 309                 return 0;
 310 }
 311
 312
 313 int Converters::getNumber(string const & from, string const & to)
 314 {
 315         ConverterList::const_iterator cit =
 316                 find_if(converterlist_.begin(), converterlist_.end(),
 317                         compare_Converter(from, to));
 318         if (cit != converterlist_.end())
 319                 return cit - converterlist_.begin();
 320         else
 321                 return -1;
 322 }
 323
 324
 325 void Converters::add(string const & from, string const & to,
 326                      string const & command, string const & flags)
 327 {
 328         formats.add(from);
 329         formats.add(to);
 330         ConverterList::iterator it = find_if(converterlist_.begin(),
 331                                              converterlist_.end(),
 332                                              compare_Converter(from, to));
 333
 334         Converter converter(from, to, command, flags);
 335         if (it != converterlist_.end() && !flags.empty() && flags[0] == '*') {
 336                 converter = *it;
 337                 converter.command = command;
 338                 converter.flags = flags;
 339         }
 340         converter.readFlags();
 341
 342         if (converter.latex && (latex_command_.empty() || to == "dvi"))
 343                 latex_command_ = subst(command, token_from, "");
 344         // If we have both latex & pdflatex, we set latex_command to latex.
 345         // The latex_command is used to update the .aux file when running
 346         // a converter that uses it.
 347
 348         if (it == converterlist_.end()) {
 349                 converterlist_.push_back(converter);
 350         } else {
 351                 converter.From = it->From;
 352                 converter.To = it->To;
 353                 *it = converter;
 354         }
 355 }
 356
 357
 358 void Converters::erase(string const & from, string const & to)
 359 {
 360         ConverterList::iterator it = find_if(converterlist_.begin(),
 361                                              converterlist_.end(),
 362                                              compare_Converter(from, to));
 363         if (it != converterlist_.end())
 364                 converterlist_.erase(it);
 365 }
 366
 367
 368 // This method updates the pointers From and To in all the converters.
 369 // The code is not very efficient, but it doesn't matter as the number
 370 // of formats and converters is small.
 371 // Furthermore, this method is called only on startup, or after
 372 // adding/deleting a format in FormPreferences (the latter calls can be
 373 // eliminated if the formats in the Formats class are stored using a map or
 374 // a list (instead of a vector), but this will cause other problems).
 375 void Converters::update(Formats const & formats)
 376 {
 377         ConverterList::iterator it = converterlist_.begin();
 378         ConverterList::iterator end = converterlist_.end();
 379         for (; it != end; ++it) {
 380                 it->From = formats.getFormat(it->from);
 381                 it->To = formats.getFormat(it->to);
 382         }
 383 }
 384
 385
 386 // This method updates the pointers From and To in the last converter.
 387 // It is called when adding a new converter in FormPreferences
 388 void Converters::updateLast(Formats const & formats)
 389 {
 390         if (converterlist_.begin() != converterlist_.end()) {
 391                 ConverterList::iterator it = converterlist_.end() - 1;
 392                 it->From = formats.getFormat(it->from);
 393                 it->To = formats.getFormat(it->to);
 394         }
 395 }
 396
 397
 398 void Converters::sort()
 399 {
 400         std::sort(converterlist_.begin(), converterlist_.end());
 401 }
 402
 403
 404 int Converters::bfs_init(string const & start, bool clear_visited)
 405 {
 406         int const s = formats.getNumber(start);
 407         if (s < 0)
 408                 return s;
 409
 410         Q_ = queue<int>();
 411         if (clear_visited)
 412                 fill(visited_.begin(), visited_.end(), false);
 413         if (visited_[s] == false) {
 414                 Q_.push(s);
 415                 visited_[s] = true;
 416         }
 417         return s;
 418 }
 419
 420
 421 vector<Format const *> const
 422 Converters::getReachableTo(string const & target, bool clear_visited)
 423 {
 424         vector<Format const *> result;
 425         int const s = bfs_init(target, clear_visited);
 426         if (s < 0)
 427                 return result;
 428
 429         while (!Q_.empty()) {
 430                 int const i = Q_.front();
 431                 Q_.pop();
 432                 if (i != s || target != "lyx") {
 433                         result.push_back(&formats.get(i));
 434                 }
 435
 436                 vector<int>::iterator it = vertices_[i].in_vertices.begin();
 437                 vector<int>::iterator end = vertices_[i].in_vertices.end();
 438                 for (; it != end; ++it) {
 439                         if (!visited_[*it]) {
 440                                 visited_[*it] = true;
 441                                 Q_.push(*it);
 442                         }
 443                 }
 444         }
 445
 446         return result;
 447 }
 448
 449
 450 vector<Format const *> const
 451 Converters::getReachable(string const & from, bool only_viewable,
 452                          bool clear_visited)
 453 {
 454         vector<Format const *> result;
 455
 456         if (bfs_init(from, clear_visited) < 0)
 457                 return result;
 458
 459         while (!Q_.empty()) {
 460                 int const i = Q_.front();
 461                 Q_.pop();
 462                 Format const & format = formats.get(i);
 463                 if (format.name() == "lyx")
 464                         continue;
 465                 if (!only_viewable || !format.viewer().empty() ||
 466                     format.isChildFormat())
 467                         result.push_back(&format);
 468
 469                 vector<int>::const_iterator cit =
 470                         vertices_[i].out_vertices.begin();
 471                 vector<int>::const_iterator end =
 472                         vertices_[i].out_vertices.end();
 473                 for (; cit != end; ++cit)
 474                         if (!visited_[*cit]) {
 475                                 visited_[*cit] = true;
 476                                 Q_.push(*cit);
 477                         }
 478         }
 479
 480         return result;
 481 }
 482
 483
 484 bool Converters::isReachable(string const & from, string const & to)
 485 {
 486         if (from == to)
 487                 return true;
 488
 489         int const s = bfs_init(from);
 490         int const t = formats.getNumber(to);
 491         if (s < 0 || t < 0)
 492                 return false;
 493
 494         while (!Q_.empty()) {
 495                 int const i = Q_.front();
 496                 Q_.pop();
 497                 if (i == t)
 498                         return true;
 499
 500                 vector<int>::const_iterator cit =
 501                         vertices_[i].out_vertices.begin();
 502                 vector<int>::const_iterator end =
 503                         vertices_[i].out_vertices.end();
 504                 for (; cit != end; ++cit) {
 505                         if (!visited_[*cit]) {
 506                                 visited_[*cit] = true;
 507                                 Q_.push(*cit);
 508                         }
 509                 }
 510         }
 511
 512         return false;
 513 }
 514
 515
 516 Converters::EdgePath const
 517 Converters::getPath(string const & from, string const & to)
 518 {
 519         EdgePath path;
 520         if (from == to)
 521                 return path;
 522
 523         int const s = bfs_init(from);
 524         int t = formats.getNumber(to);
 525         if (s < 0 || t < 0)
 526                 return path;
 527
 528         vector<int> prev_edge(formats.size());
 529         vector<int> prev_vertex(formats.size());
 530
 531         bool found = false;
 532         while (!Q_.empty()) {
 533                 int const i = Q_.front();
 534                 Q_.pop();
 535                 if (i == t) {
 536                         found = true;
 537                         break;
 538                 }
 539
 540                 vector<int>::const_iterator beg =
 541                         vertices_[i].out_vertices.begin();
 542                 vector<int>::const_iterator cit = beg;
 543                 vector<int>::const_iterator end =
 544                         vertices_[i].out_vertices.end();
 545                 for (; cit != end; ++cit)
 546                         if (!visited_[*cit]) {
 547                                 int const j = *cit;
 548                                 visited_[j] = true;
 549                                 Q_.push(j);
 550                                 int const k = cit - beg;
 551                                 prev_edge[j] = vertices_[i].out_edges[k];
 552                                 prev_vertex[j] = i;
 553                         }
 554         }
 555         if (!found)
 556                 return path;
 557
 558         while (t != s) {
 559                 path.push_back(prev_edge[t]);
 560                 t = prev_vertex[t];
 561         }
 562         reverse(path.begin(), path.end());
 563         return path;
 564 }
 565
 566
 567 bool Converters::usePdflatex(EdgePath const & path)
 568 {
 569         for (EdgePath::const_iterator cit = path.begin();
 570              cit != path.end(); ++cit) {
 571                 Converter const & conv = converterlist_[*cit];
 572                 if (conv.latex)
 573                         return contains(conv.to, "pdf");
 574         }
 575         return false;
 576 }
 577
 578
 579 bool Converters::convert(Buffer const * buffer,
 580                          string const & from_file, string const & to_file_base,
 581                          string const & from_format, string const & to_format,
 582                          string & to_file)
 583 {
 584         to_file = ChangeExtension(to_file_base,
 585                                   formats.extension(to_format));
 586
 587         if (from_format == to_format)
 588                 return move(from_file, to_file, false);
 589
 590         EdgePath edgepath = getPath(from_format, to_format);
 591         if (edgepath.empty()) {
 592                 return false;
 593         }
 594
 595         string path = OnlyPath(from_file);
 596         Path p(path);
 597
 598         bool run_latex = false;
 599         string from_base = ChangeExtension(from_file, "");
 600         string to_base = ChangeExtension(to_file, "");
 601         string infile;
 602         string outfile = from_file;
 603         for (EdgePath::const_iterator cit = edgepath.begin();
 604              cit != edgepath.end(); ++cit) {
 605                 Converter const & conv = converterlist_[*cit];
 606                 bool dummy = conv.To->dummy() && conv.to != "program";
 607                 if (!dummy)
 608                         lyxerr[Debug::FILES] << "Converting from  "
 609                                << conv.from << " to " << conv.to << endl;
 610                 infile = outfile;
 611                 outfile = conv.result_dir.empty()
 612                         ? ChangeExtension(from_file, conv.To->extension())
 613                         : AddName(subst(conv.result_dir,
 614                                         token_base, from_base),
 615                                   subst(conv.result_file,
 616                                         token_base, OnlyFilename(from_base)));
 617
 618                 if (conv.latex) {
 619                         run_latex = true;
 620                         string command = subst(conv.command, token_from, "");
 621                         lyxerr[Debug::FILES] << "Running " << command << endl;
 622                         if (!runLaTeX(buffer, command))
 623                                 return false;
 624                 } else {
 625                         if (conv.need_aux && !run_latex
 626                             && !latex_command_.empty()) {
 627                                 lyxerr[Debug::FILES]
 628                                         << "Running " << latex_command_
 629                                         << " to update aux file"<<  endl;
 630                                 runLaTeX(buffer, latex_command_);
 631                         }
 632
 633                         string infile2 = (conv.original_dir)
 634                                 ? infile : MakeRelPath(infile, path);
 635                         string outfile2 = (conv.original_dir)
 636                                 ? outfile : MakeRelPath(outfile, path);
 637
 638                         string command = conv.command;
 639                         command = subst(command, token_from, QuoteName(infile2));
 640                         command = subst(command, token_base, QuoteName(from_base));
 641                         command = subst(command, token_to, QuoteName(outfile2));
 642                         command = LibScriptSearch(command);
 643
 644                         if (!conv.parselog.empty())
 645                                 command += " 2> " + QuoteName(infile2 + ".out");
 646
 647                         if (conv.from == "dvi" && conv.to == "ps")
 648                                 command = add_options(command,
 649                                                       dvips_options(buffer));
 650                         else if (conv.from == "dvi" && prefixIs(conv.to, "pdf"))
 651                                 command = add_options(command,
 652                                                       dvipdfm_options(buffer));
 653
 654                         lyxerr[Debug::FILES] << "Calling " << command << endl;
 655                         if (buffer)
 656                                 ShowMessage(buffer, _("Executing command:"), command);
 657
 658                         Systemcall::Starttype type = (dummy)
 659                                 ? Systemcall::DontWait : Systemcall::Wait;
 660                         Systemcall one;
 661                         int res;
 662                         if (conv.original_dir && buffer) {
 663                                 Path p(buffer->filePath());
 664                                 res = one.startscript(type, command);
 665                         } else
 666                                 res = one.startscript(type, command);
 667
 668                         if (!conv.parselog.empty()) {
 669                                 string const logfile =  infile2 + ".log";
 670                                 string const script = LibScriptSearch(conv.parselog);
 671                                 string const command2 = script +
 672                                         " < " + QuoteName(infile2 + ".out") +
 673                                         " > " + QuoteName(logfile);
 674                                 one.startscript(Systemcall::Wait, command2);
 675                                 if (!scanLog(buffer, command, logfile))
 676                                         return false;
 677                         }
 678
 679                         if (res) {
 680                                 if (conv.to == "program")
 681                                         Alert::alert(_("There were errors during the Build process."),
 682                                                    _("You should try to fix them."));
 683                                 else
 684                                         Alert::alert(_("Cannot convert file"),
 685                                                    "Error while executing",
 686                                                    command.substr(0, 50));
 687                                 return false;
 688                         }
 689                 }
 690         }
 691
 692         Converter const & conv = converterlist_[edgepath.back()];
 693         if (conv.To->dummy())
 694                 return true;
 695
 696
 697         if (!conv.result_dir.empty()) {
 698                 to_file = AddName(subst(conv.result_dir, token_base, to_base),
 699                                   subst(conv.result_file,
 700                                         token_base, OnlyFilename(to_base)));
 701                 if (from_base != to_base) {
 702                         string from = subst(conv.result_dir,
 703                                             token_base, from_base);
 704                         string to = subst(conv.result_dir,
 705                                           token_base, to_base);
 706                         if (!lyx::rename(from, to)) {
 707                                 Alert::alert(_("Error while trying to move directory:"),
 708                                            from, ("to ") + to);
 709                                 return false;
 710                         }
 711                 }
 712                 return true;
 713         } else
 714                 return move(outfile, to_file, conv.latex);
 715 }
 716
 717 // If from = /path/file.ext and to = /path2/file2.ext2 then this method
 718 // moves each /path/file*.ext file to /path2/file2*.ext2'
 719 bool Converters::move(string const & from, string const & to, bool copy)
 720 {
 721         if (from == to)
 722                 return true;
 723
 724         bool no_errors = true;
 725         string const path = OnlyPath(from);
 726         string const base = OnlyFilename(ChangeExtension(from, ""));
 727         string const to_base = ChangeExtension(to, "");
 728         string const to_extension = GetExtension(to);
 729
 730         vector<string> files = DirList(OnlyPath(from), GetExtension(from));
 731         for (vector<string>::const_iterator it = files.begin();
 732              it != files.end(); ++it)
 733                 if (prefixIs(*it, base)) {
 734                         string const from2 = path + *it;
 735                         string to2 = to_base + it->substr(base.length());
 736                         to2 = ChangeExtension(to2, to_extension);
 737                         lyxerr[Debug::FILES] << "moving " << from2
 738                                              << " to " << to2 << endl;
 739                         bool const moved = (copy)
 740                                 ? lyx::copy(from2, to2)
 741                                 : lyx::rename(from2, to2);
 742                         if (!moved && no_errors) {
 743                                 Alert::alert(_("Error while trying to move file:"),
 744                                            from2, _("to ") + to2);
 745                                 no_errors = false;
 746                         }
 747                 }
 748         return no_errors;
 749 }
 750
 751
 752 bool Converters::convert(Buffer const * buffer,
 753                         string const & from_file, string const & to_file_base,
 754                         string const & from_format, string const & to_format)
 755 {
 756         string to_file;
 757         return convert(buffer, from_file, to_file_base, from_format, to_format,
 758                        to_file);
 759 }
 760
 761
 762 void Converters::buildGraph()
 763 {
 764         vertices_ = vector<Vertex>(formats.size());
 765         visited_.resize(formats.size());
 766
 767         for (ConverterList::iterator it = converterlist_.begin();
 768              it != converterlist_.end(); ++it) {
 769                 int const s = formats.getNumber(it->from);
 770                 int const t = formats.getNumber(it->to);
 771                 vertices_[t].in_vertices.push_back(s);
 772                 vertices_[s].out_vertices.push_back(t);
 773                 vertices_[s].out_edges.push_back(it - converterlist_.begin());
 774         }
 775 }
 776
 777
 778 bool Converters::formatIsUsed(string const & format)
 779 {
 780         ConverterList::const_iterator cit = converterlist_.begin();
 781         ConverterList::const_iterator end = converterlist_.end();
 782         for (; cit != end; ++cit) {
 783                 if (cit->from == format || cit->to == format)
 784                         return true;
 785         }
 786         return false;
 787 }
 788
 789
 790 bool Converters::scanLog(Buffer const * buffer, string const & command,
 791                         string const & filename)
 792 {
 793         if (!buffer)
 794                 return false;
 795
 796         BufferView * bv = buffer->getUser();
 797         if (bv) {
 798                 bv->owner()->prohibitInput();
 799                 // all error insets should have been removed by now
 800         }
 801
 802         LaTeX latex("", filename, "");
 803         TeXErrors terr;
 804         int result = latex.scanLogFile(terr);
 805         if (bv) {
 806                 if ((result & LaTeX::ERRORS)) {
 807                         // Insert all errors as errors boxes
 808                         bv->insertErrors(terr);
 809 #warning repaint() or update() or nothing ?
 810                         bv->repaint();
 811                         bv->fitCursor();
 812                 }
 813                 bv->owner()->allowInput();
 814         }
 815
 816         if ((result & LaTeX::ERRORS)) {
 817                 int num_errors = latex.getNumErrors();
 818                 string s;
 819                 string t;
 820                 if (num_errors == 1) {
 821                         s = _("One error detected");
 822                         t = _("You should try to fix it.");
 823                 } else {
 824                         s = tostr(num_errors);
 825                         s += _(" errors detected.");
 826                         t = _("You should try to fix them.");
 827                 }
 828                 string head;
 829                 split(command, head, ' ');
 830                 Alert::alert(_("There were errors during running of ") + head,
 831                            s, t);
 832                 return false;
 833         } else if (result & LaTeX::NO_OUTPUT) {
 834                 string const s = _("The operation resulted in");
 835                 string const t = _("an empty file.");
 836                 Alert::alert(_("Resulting file is empty"), s, t);
 837                 return false;
 838         }
 839         return true;
 840 }
 841
 842
 843 bool Converters::runLaTeX(Buffer const * buffer, string const & command)
 844 {
 845         if (!buffer)
 846                 return false;
 847
 848         BufferView * bv = buffer->getUser();
 849
 850         if (bv) {
 851                 bv->owner()->prohibitInput();
 852                 bv->owner()->message(_("Running LaTeX..."));
 853                 // all the autoinsets have already been removed
 854         }
 855
 856         // do the LaTeX run(s)
 857         string name = buffer->getLatexName();
 858         LaTeX latex(command, name, buffer->filePath());
 859         TeXErrors terr;
 860         int result = latex.run(terr,
 861                                bv ? &bv->owner()->getLyXFunc() : 0);
 862
 863         if (bv) {
 864                 if ((result & LaTeX::ERRORS)) {
 865                         // Insert all errors as errors boxes
 866                         bv->insertErrors(terr);
 867 #warning repaint() or update() or nothing ?
 868                         bv->repaint();
 869                         bv->fitCursor();
 870                 }
 871         }
 872
 873         // check return value from latex.run().
 874         if ((result & LaTeX::NO_LOGFILE)) {
 875                 Alert::alert(_("LaTeX did not work!"),
 876                            _("Missing log file:"), name);
 877         } else if ((result & LaTeX::ERRORS)) {
 878                 int num_errors = latex.getNumErrors();
 879                 string s;
 880                 string t;
 881                 if (num_errors == 1) {
 882                         s = _("One error detected");
 883                         t = _("You should try to fix it.");
 884                 } else {
 885                         s = tostr(num_errors);
 886                         s += _(" errors detected.");
 887                         t = _("You should try to fix them.");
 888                 }
 889                 Alert::alert(_("There were errors during the LaTeX run."),
 890                            s, t);
 891         }  else if (result & LaTeX::NO_OUTPUT) {
 892                 string const s = _("The operation resulted in");
 893                 string const t = _("an empty file.");
 894                 Alert::alert(_("Resulting file is empty"), s, t);
 895         }
 896
 897         if (bv)
 898                 bv->owner()->allowInput();
 899
 900         int const ERROR_MASK =
 901                         LaTeX::NO_LOGFILE |
 902                         LaTeX::ERRORS |
 903                         LaTeX::NO_OUTPUT;
 904
 905         return (result & ERROR_MASK) == 0;
 906
 907 }
 908
 909
 910 string const Converters::papersize(Buffer const * buffer)
 911 {
 912         char real_papersize = buffer->params.papersize;
 913         if (real_papersize == BufferParams::PAPER_DEFAULT)
 914                 real_papersize = lyxrc.default_papersize;
 915
 916         switch (real_papersize) {
 917         case BufferParams::PAPER_A3PAPER:
 918                 return "a3";
 919         case BufferParams::PAPER_A4PAPER:
 920                 return "a4";
 921         case BufferParams::PAPER_A5PAPER:
 922                 return "a5";
 923         case BufferParams::PAPER_B5PAPER:
 924                 return "b5";
 925         case BufferParams::PAPER_EXECUTIVEPAPER:
 926                 return "foolscap";
 927         case BufferParams::PAPER_LEGALPAPER:
 928                 return "legal";
 929         case BufferParams::PAPER_USLETTER:
 930         default:
 931                 return "letter";
 932         }
 933 }
 934
 935
 936 string const Converters::dvips_options(Buffer const * buffer)
 937 {
 938         string result;
 939         if (!buffer)
 940                 return result;
 941
 942         if (buffer->params.use_geometry
 943             && buffer->params.papersize2 == BufferParams::VM_PAPER_CUSTOM
 944             && !lyxrc.print_paper_dimension_flag.empty()
 945             && !buffer->params.paperwidth.empty()
 946             && !buffer->params.paperheight.empty()) {
 947                 // using a custom papersize
 948                 result = lyxrc.print_paper_dimension_flag;
 949                 result += ' ' + buffer->params.paperwidth;
 950                 result += ',' + buffer->params.paperheight;
 951         } else {
 952                 string const paper_option = papersize(buffer);
 953                 if (paper_option != "letter" ||
 954                     buffer->params.orientation != BufferParams::ORIENTATION_LANDSCAPE) {
 955                         // dvips won't accept -t letter -t landscape.  In all other
 956                         // cases, include the paper size explicitly.
 957                         result = lyxrc.print_paper_flag;
 958                         result += ' ' + paper_option;
 959                 }
 960         }
 961         if (buffer->params.orientation == BufferParams::ORIENTATION_LANDSCAPE &&
 962             buffer->params.papersize2 != BufferParams::VM_PAPER_CUSTOM)
 963                 result += ' ' + lyxrc.print_landscape_flag;
 964         return result;
 965 }
 966
 967
 968 string const Converters::dvipdfm_options(Buffer const * buffer)
 969 {
 970         string result;
 971         if (!buffer)
 972                 return result;
 973
 974         if (buffer->params.papersize2 != BufferParams::VM_PAPER_CUSTOM) {
 975                 string const paper_size = papersize(buffer);
 976                 if (paper_size != "b5" && paper_size != "foolscap")
 977                         result = "-p "+ paper_size;
 978
 979                 if (buffer->params.orientation == BufferParams::ORIENTATION_LANDSCAPE)
 980                         result += " -l";
 981         }
 982
 983         return result;
 984 }
 985
 986
 987 vector<Converters::Vertex> Converters::vertices_;
 988
 989
 990 /// The global instance
 991 Formats formats;
 992 Converters converters;
 993
 994 // The global copy after reading lyxrc.defaults
 995 Formats system_formats;
 996 Converters system_converters;