src/converter.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2000 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 "support/syscall.h"
  22 #include "support/path.h"
  23 #include "support/filetools.h"
  24 #include "buffer.h"
  25 #include "bufferview_funcs.h"
  26 #include "LaTeX.h"
  27 #include "LyXView.h"
  28 #include "minibuffer.h"
  29 #include "lyx_gui_misc.h"
  30 #include "lyx_cb.h" // ShowMessage()
  31 #include "support/lyxfunctional.h"
  32
  33 using std::vector;
  34 using std::queue;
  35 using std::endl;
  36 using std::fill;
  37 using std::find_if;
  38 using std::reverse;
  39 using std::sort;
  40
  41 static string const token_from("$$i");
  42 static string const token_base("$$b");
  43 static string const token_to("$$o");
  44
  45 //////////////////////////////////////////////////////////////////////////////
  46
  47 static inline
  48 string const add_options(string const & command, string const & options)
  49 {
  50         string head;
  51         string const tail = split(command, head, ' ');
  52         return head + ' ' + options + ' ' + tail;
  53 }
  54
  55 //////////////////////////////////////////////////////////////////////////////
  56
  57 bool Format::dummy() const
  58 {
  59         return extension().empty();
  60 }
  61
  62
  63 bool Format::IsChildFormat() const
  64 {
  65         if (name_.empty())
  66                 return false;
  67         return isdigit(name_[name_.length() - 1]);
  68 }
  69
  70
  71 string const Format::ParentFormat() const
  72 {
  73         return name_.substr(0, name_.length() - 1);
  74 }
  75
  76 //////////////////////////////////////////////////////////////////////////////
  77
  78 // This method should return a reference, and throw an exception
  79 // if the format named name cannot be found (Lgb)
  80 Format const * Formats::GetFormat(string const & name) const
  81 {
  82         FormatList::const_iterator cit =
  83                 find_if(formatlist.begin(), formatlist.end(),
  84                         compare_memfun(&Format::name, name));
  85         if (cit != formatlist.end())
  86                 return &(*cit);
  87         else
  88                 return 0;
  89 }
  90
  91
  92 int Formats::GetNumber(string const & name) const
  93 {
  94         FormatList::const_iterator cit =
  95                 find_if(formatlist.begin(), formatlist.end(),
  96                         compare_memfun(&Format::name, name));
  97         if (cit != formatlist.end())
  98                 return cit - formatlist.begin();
  99         else
 100                 return -1;
 101 }
 102
 103
 104 void Formats::Add(string const & name)
 105 {
 106         if (!GetFormat(name))
 107                 Add(name, name, name, string());
 108 }
 109
 110
 111 void Formats::Add(string const & name, string const & extension,
 112                   string const & prettyname, string const & shortcut)
 113 {
 114         FormatList::iterator it =
 115                 find_if(formatlist.begin(), formatlist.end(),
 116                         compare_memfun(&Format::name, name));
 117         if (it == formatlist.end())
 118                 formatlist.push_back(Format(name, extension, prettyname,
 119                                             shortcut, ""));
 120         else {
 121                 string viewer = it->viewer();
 122                 *it = Format(name, extension, prettyname, shortcut, viewer);
 123         }
 124 }
 125
 126
 127 void Formats::Delete(string const & name)
 128 {
 129         FormatList::iterator it =
 130                 find_if(formatlist.begin(), formatlist.end(),
 131                         compare_memfun(&Format::name, name));
 132         if (it != formatlist.end())
 133                 formatlist.erase(it);
 134 }
 135
 136
 137 void Formats::Sort()
 138 {
 139         sort(formatlist.begin(), formatlist.end());
 140 }
 141
 142
 143 void Formats::SetViewer(string const & name, string const & command)
 144 {
 145         Add(name);
 146         FormatList::iterator it =
 147                 find_if(formatlist.begin(), formatlist.end(),
 148                         compare_memfun(&Format::name, name));
 149         if (it != formatlist.end())
 150                 it->setViewer(command);
 151 }
 152
 153
 154 bool Formats::View(Buffer const * buffer, string const & filename,
 155                    string const & format_name) const
 156 {
 157         if (filename.empty())
 158                 return false;
 159
 160         Format const * format = GetFormat(format_name);
 161         if (format && format->viewer().empty() &&
 162             format->IsChildFormat())
 163                 format = GetFormat(format->ParentFormat());
 164         if (!format || format->viewer().empty()) {
 165                 WriteAlert(_("Can not view file"),
 166                            _("No information for viewing ")
 167                            + PrettyName(format_name));
 168                            return false;
 169         }
 170
 171         string command = format->viewer();
 172
 173         if (format_name == "dvi" &&
 174             !lyxrc.view_dvi_paper_option.empty()) {
 175                 command += " " + lyxrc.view_dvi_paper_option;
 176                 command += " " + converters.dvi_papersize(buffer);
 177                 if (buffer->params.orientation
 178                     == BufferParams::ORIENTATION_LANDSCAPE)
 179                         command += 'r';
 180         }
 181
 182         string command2 = command + " " + OnlyFilename(filename);
 183         lyxerr << "Executing command: " << command2 << endl;
 184         ShowMessage(buffer, _("Executing command:"), command2);
 185
 186         command += " " + QuoteName(filename);
 187         Systemcalls one;
 188         int res = one.startscript(Systemcalls::SystemDontWait, command);
 189
 190         if (res) {
 191                 WriteAlert(_("Can not view file"),
 192                            _("Error while executing"),
 193                            command2.substr(0, 50));
 194                 return false;
 195         }
 196         return true;
 197 }
 198
 199
 200 string const Formats::PrettyName(string const & name) const
 201 {
 202         Format const * format = GetFormat(name);
 203         if (format)
 204                 return format->prettyname();
 205         else
 206                 return name;
 207 }
 208
 209
 210 string const Formats::Extension(string const & name) const
 211 {
 212         Format const * format = GetFormat(name);
 213         if (format)
 214                 return format->extension();
 215         else
 216                 return name;
 217 }
 218
 219 //////////////////////////////////////////////////////////////////////////////
 220
 221 void Converter::ReadFlags()
 222 {
 223         string flag_list(flags);
 224         while (!flag_list.empty()) {
 225                 string flag_name, flag_value;
 226                 flag_list = split(flag_list, flag_value, ',');
 227                 flag_value = split(flag_value, flag_name, '=');
 228                 if (flag_name == "latex")
 229                         latex = true;
 230                 else if (flag_name == "originaldir")
 231                         original_dir = true;
 232                 else if (flag_name == "needaux")
 233                         need_aux = true;
 234                 else if (flag_name == "resultdir")
 235                         result_dir = (flag_value.empty())
 236                                 ? token_base : flag_value;
 237                 else if (flag_name == "resultfile")
 238                         result_file = flag_value;
 239                 else if (flag_name == "parselog")
 240                         parselog = flag_value;
 241         }
 242         if (!result_dir.empty() && result_file.empty())
 243                 result_file = "index." + formats.Extension(to);
 244         //if (!contains(command, token_from))
 245         //      latex = true;
 246 }
 247
 248
 249 bool operator<(Converter const & a, Converter const & b)
 250 {
 251         int i = compare_no_case(a.From->prettyname(), b.From->prettyname());
 252         if (i == 0)
 253                 return compare_no_case(a.To->prettyname(), b.To->prettyname())
 254                         < 0;
 255         else
 256                 return i < 0;
 257 }
 258
 259 //////////////////////////////////////////////////////////////////////////////
 260
 261 class compare_Converter {
 262 public:
 263         compare_Converter(string const & f, string const & t)
 264                 : from(f), to(t) {}
 265         bool operator()(Converter const & c) {
 266                 return c.from == from && c.to == to;
 267         }
 268 private:
 269         string from;
 270         string to;
 271 };
 272
 273
 274 Converter const * Converters::GetConverter(string const & from,
 275                                             string const & to)
 276 {
 277         ConverterList::const_iterator cit =
 278                 find_if(converterlist.begin(), converterlist.end(),
 279                         compare_Converter(from, to));
 280         if (cit != converterlist.end())
 281                 return &(*cit);
 282         else
 283                 return 0;
 284 }
 285
 286
 287 int Converters::GetNumber(string const & from, string const & to)
 288 {
 289         ConverterList::const_iterator cit =
 290                 find_if(converterlist.begin(), converterlist.end(),
 291                         compare_Converter(from, to));
 292         if (cit != converterlist.end())
 293                 return cit - converterlist.begin();
 294         else
 295                 return -1;
 296 }
 297
 298
 299 void Converters::Add(string const & from, string const & to,
 300                      string const & command, string const & flags)
 301 {
 302         formats.Add(from);
 303         formats.Add(to);
 304         ConverterList::iterator it = find_if(converterlist.begin(),
 305                                              converterlist.end(),
 306                                              compare_Converter(from, to));
 307
 308         Converter converter(from, to, command, flags);
 309         if (it != converterlist.end() && !flags.empty() && flags[0] == '*') {
 310                 converter = *it;
 311                 converter.command = command;
 312                 converter.flags = flags;
 313         }
 314         converter.ReadFlags();
 315
 316         if (converter.latex && (latex_command.empty() || to == "dvi"))
 317                 latex_command = subst(command, token_from, "");
 318         // If we have both latex & pdflatex, we set latex_command to latex.
 319         // The latex_command is used to update the .aux file when running
 320         // a converter that uses it.
 321
 322         if (it == converterlist.end())
 323                 converterlist.push_back(converter);
 324         else {
 325                 converter.From = it->From;
 326                 converter.To = it->To;
 327                 *it = converter;
 328         }
 329 }
 330
 331
 332 void Converters::Delete(string const & from, string const & to)
 333 {
 334         ConverterList::iterator it = find_if(converterlist.begin(),
 335                                              converterlist.end(),
 336                                              compare_Converter(from, to));
 337         if (it != converterlist.end())
 338                 converterlist.erase(it);
 339 }
 340
 341
 342 // This method updates the pointers From and To in all the converters.
 343 // The code is not very efficient, but it doesn't matter as the number
 344 // of formats and converters is small.
 345 // Furthermore, this method is called only on startup, or after
 346 // adding/deleting a format in FormPreferences (the latter calls can be
 347 // eliminated if the formats in the Formats class are stored using a map or
 348 // a list (instead of a vector), but this will cause other problems).
 349 void Converters::Update(Formats const & formats)
 350 {
 351         for (ConverterList::iterator it = converterlist.begin();
 352              it != converterlist.end(); ++it) {
 353                 it->From = formats.GetFormat(it->from);
 354                 it->To = formats.GetFormat(it->to);
 355         }
 356 }
 357
 358
 359 // This method updates the pointers From and To in the last converter.
 360 // It is called when adding a new converter in FormPreferences
 361 void Converters::UpdateLast(Formats const & formats)
 362 {
 363         if (converterlist.begin() != converterlist.end()) {
 364                 ConverterList::iterator it = converterlist.end()-1;
 365                 it->From = formats.GetFormat(it->from);
 366                 it->To = formats.GetFormat(it->to);
 367         }
 368 }
 369
 370
 371 void Converters::Sort()
 372 {
 373         sort(converterlist.begin(), converterlist.end());
 374 }
 375
 376
 377 int Converters::BFS_init(string const & start, bool clear_visited)
 378 {
 379         int s = formats.GetNumber(start);
 380         if (s < 0)
 381                 return s;
 382
 383         Q = queue<int>();
 384         if (clear_visited)
 385                 fill(visited.begin(), visited.end(), false);
 386         if (visited[s] == false) {
 387                 Q.push(s);
 388                 visited[s] = true;
 389         }
 390         return s;
 391 }
 392
 393
 394 vector<Format const *> const
 395 Converters::GetReachableTo(string const & target, bool clear_visited)
 396 {
 397         vector<Format const *> result;
 398         int s = BFS_init(target, clear_visited);
 399         if (s < 0)
 400                 return result;
 401
 402         while (!Q.empty()) {
 403                 int i = Q.front();
 404                 Q.pop();
 405                 if (i != s || target != "lyx")
 406                         result.push_back(&formats.Get(i));
 407                 for (vector<int>::iterator it = vertices[i].in_vertices.begin();
 408                      it != vertices[i].in_vertices.end(); ++it)
 409                         if (!visited[*it]) {
 410                                 visited[*it] = true;
 411                                 Q.push(*it);
 412                         }
 413         }
 414
 415         return result;
 416 }
 417
 418
 419 vector<Format const *> const
 420 Converters::GetReachable(string const & from, bool only_viewable,
 421                          bool clear_visited)
 422 {
 423         vector<Format const *> result;
 424
 425         if (BFS_init(from, clear_visited) < 0)
 426                 return result;
 427
 428         while (!Q.empty()) {
 429                 int i = Q.front();
 430                 Q.pop();
 431                 Format const & format = formats.Get(i);
 432                 if (format.name() == "lyx")
 433                         continue;
 434                 if (!only_viewable || !format.viewer().empty() ||
 435                     format.IsChildFormat())
 436                         result.push_back(&format);
 437                 for (vector<int>::iterator it = vertices[i].out_vertices.begin();
 438                      it != vertices[i].out_vertices.end(); ++it)
 439                         if (!visited[*it]) {
 440                                 visited[*it] = true;
 441                                 Q.push(*it);
 442                         }
 443         }
 444
 445         return result;
 446 }
 447
 448
 449 bool Converters::IsReachable(string const & from, string const & to)
 450 {
 451         if (from == to)
 452                 return true;
 453
 454         int s = BFS_init(from);
 455         int t = formats.GetNumber(to);
 456         if (s < 0 || t < 0)
 457                 return false;
 458
 459         while (!Q.empty()) {
 460                 int i = Q.front();
 461                 Q.pop();
 462                 if (i == t)
 463                         return true;
 464                 for (vector<int>::iterator it = vertices[i].out_vertices.begin();
 465                      it != vertices[i].out_vertices.end(); ++it)
 466                         if (!visited[*it]) {
 467                                 visited[*it] = true;
 468                                 Q.push(*it);
 469                         }
 470         }
 471
 472         return false;
 473 }
 474
 475
 476 Converters::EdgePath const
 477 Converters::GetPath(string const & from, string const & to)
 478 {
 479         EdgePath path;
 480         if (from == to)
 481                 return path;
 482
 483         int s = BFS_init(from);
 484         int t = formats.GetNumber(to);
 485         if (s < 0 || t < 0)
 486                 return path;
 487
 488         vector<int> prev_edge(formats.size());
 489         vector<int> prev_vertex(formats.size());
 490
 491         bool found = false;
 492         while (!Q.empty()) {
 493                 int i = Q.front();
 494                 Q.pop();
 495                 if (i == t) {
 496                         found = true;
 497                         break;
 498                 }
 499                 for (vector<int>::iterator it = vertices[i].out_vertices.begin();
 500                      it != vertices[i].out_vertices.end(); ++it)
 501                         if (!visited[*it]) {
 502                                 int j = *it;
 503                                 visited[j] = true;
 504                                 Q.push(j);
 505                                 int k = it - vertices[i].out_vertices.begin();
 506                                 prev_edge[j] = vertices[i].out_edges[k];
 507                                 prev_vertex[j] = i;
 508                         }
 509         }
 510         if (!found)
 511                 return path;
 512
 513         while (t != s) {
 514                 path.push_back(prev_edge[t]);
 515                 t = prev_vertex[t];
 516         }
 517         reverse(path.begin(), path.end());
 518         return path;
 519 }
 520
 521
 522 bool Converters::UsePdflatex(EdgePath const & path)
 523 {
 524         for (EdgePath::const_iterator cit = path.begin();
 525              cit != path.end(); ++cit) {
 526                 Converter const & conv = converterlist[*cit];
 527                 if (conv.latex)
 528                         return contains(conv.to, "pdf");
 529         }
 530         return false;
 531 }
 532
 533
 534 bool Converters::Convert(Buffer const * buffer,
 535                          string const & from_file, string const & to_file_base,
 536                          string const & from_format, string const & to_format,
 537                          string & to_file)
 538 {
 539         to_file = ChangeExtension(to_file_base,
 540                                   formats.Extension(to_format));
 541
 542         if (from_format == to_format)
 543                 return Move(from_file, to_file, false);
 544
 545         EdgePath edgepath = GetPath(from_format, to_format);
 546         if (edgepath.empty()) {
 547                 WriteAlert(_("Can not convert file"),
 548                            _("No information for converting from ")
 549                            + formats.PrettyName(from_format) + _(" to ")
 550                            + formats.PrettyName(to_format));
 551                 return false;
 552         }
 553
 554         string path = OnlyPath(from_file);
 555         Path p(path);
 556
 557         bool run_latex = false;
 558         string from_base = ChangeExtension(from_file, "");
 559         string to_base = ChangeExtension(to_file, "");
 560         string infile;
 561         string outfile = from_file;
 562         for (EdgePath::const_iterator cit = edgepath.begin();
 563              cit != edgepath.end(); ++cit) {
 564                 Converter const & conv = converterlist[*cit];
 565                 bool dummy = conv.To->dummy() && conv.to != "program";
 566                 if (!dummy)
 567                         lyxerr << "Converting from  "
 568                                << conv.from << " to " << conv.to << endl;
 569                 infile = outfile;
 570                 outfile = conv.result_dir.empty()
 571                         ? ChangeExtension(from_file, conv.To->extension())
 572                         : AddName(subst(conv.result_dir,
 573                                         token_base, from_base),
 574                                   subst(conv.result_file,
 575                                         token_base, OnlyFilename(from_base)));
 576
 577                 if (conv.latex) {
 578                         run_latex = true;
 579                         string command = subst(conv.command, token_from, "");
 580                         lyxerr << "Running " << command << endl;
 581                         if (!runLaTeX(buffer, command))
 582                                 return false;
 583                 } else {
 584                         if (conv.need_aux && !run_latex
 585                             && !latex_command.empty()) {
 586                                 lyxerr << "Running " << latex_command
 587                                        << " to update aux file"<<  endl;
 588                                 runLaTeX(buffer, latex_command);
 589                         }
 590
 591                         string infile2 = (conv.original_dir)
 592                                 ? infile : MakeRelPath(infile, path);
 593                         string outfile2 = (conv.original_dir)
 594                                 ? outfile : MakeRelPath(outfile, path);
 595
 596                         string command = conv.command;
 597                         command = subst(command, token_from, QuoteName(infile2));
 598                         command = subst(command, token_base, QuoteName(from_base));
 599                         command = subst(command, token_to, QuoteName(outfile2));
 600
 601                         if (!conv.parselog.empty())
 602                                 command += " 2> " + QuoteName(infile2 + ".out");
 603
 604                         if (conv.from == "dvi" && conv.to == "ps")
 605                                 command = add_options(command,
 606                                                       dvips_options(buffer));
 607
 608                         lyxerr << "Calling " << command << endl;
 609                         if (buffer)
 610                                 ShowMessage(buffer, _("Executing command:"), command);
 611
 612                         Systemcalls::Starttype type = (dummy)
 613                                 ? Systemcalls::SystemDontWait : Systemcalls::System;
 614                         Systemcalls one;
 615                         int res;
 616                         if (conv.original_dir && buffer) {
 617                                 Path p(buffer->filepath);
 618                                 res = one.startscript(type, command);
 619                         } else
 620                                 res = one.startscript(type, command);
 621
 622                         if (!conv.parselog.empty()) {
 623                                 string const logfile =  infile2 + ".log";
 624                                 string const command2 = conv.parselog +
 625                                         " < " + QuoteName(infile2 + ".out") +
 626                                         " > " + QuoteName(logfile);
 627                                 one.startscript(Systemcalls::System, command2);
 628                                 if (!scanLog(buffer, command, logfile))
 629                                         return false;
 630                         }
 631
 632                         if (res) {
 633                                 if (conv.to == "program")
 634                                         WriteAlert(_("There were errors during the Build process."),
 635                                                    _("You should try to fix them."));
 636                                 else
 637                                         WriteAlert(_("Can not convert file"),
 638                                                    "Error while executing",
 639                                                    command.substr(0, 50));
 640                                 return false;
 641                         }
 642                 }
 643         }
 644
 645         Converter const & conv = converterlist[edgepath.back()];
 646         if (conv.To->dummy())
 647                 return true;
 648
 649
 650         if (!conv.result_dir.empty()) {
 651                 to_file = AddName(subst(conv.result_dir, token_base, to_base),
 652                                   subst(conv.result_file,
 653                                         token_base, OnlyFilename(to_base)));
 654                 if (from_base != to_base) {
 655                         string from = subst(conv.result_dir,
 656                                             token_base, from_base);
 657                         string to = subst(conv.result_dir,
 658                                           token_base, to_base);
 659                         if (!lyx::rename(from, to)) {
 660                                 WriteAlert(_("Error while trying to move directory:"),
 661                                            from, ("to ") + to);
 662                                 return false;
 663                         }
 664                 }
 665                 return true;
 666         } else
 667                 return Move(outfile, to_file, conv.latex);
 668 }
 669
 670 // If from = /path/file.ext and to = /path2/file2.ext2 then this method
 671 // moves each /path/file*.ext file to /path2/file2*.ext2'
 672 bool Converters::Move(string const & from, string const & to, bool copy)
 673 {
 674         if (from == to)
 675                 return true;
 676
 677         bool no_errors = true;
 678         string path = OnlyPath(from);
 679         string base = OnlyFilename(ChangeExtension(from, ""));
 680         string to_base = ChangeExtension(to, "");
 681         string to_extension = GetExtension(to);
 682
 683         vector<string> files = DirList(OnlyPath(from), GetExtension(from));
 684         for (vector<string>::const_iterator it = files.begin();
 685              it != files.end(); ++it)
 686                 if (prefixIs(*it, base)) {
 687                         string from2 = path + *it;
 688                         string to2 = to_base + (*it).substr(base.length());
 689                         to2 = ChangeExtension(to2, to_extension);
 690                         lyxerr << "moving " << from2 << " to " << to2 << endl;
 691                         bool moved = (copy)
 692                                 ? lyx::copy(from2, to2)
 693                                 : lyx::rename(from2, to2);
 694                         if (!moved && no_errors) {
 695                                 WriteAlert(_("Error while trying to move file:"),
 696                                            from2, _("to ") + to2);
 697                                 no_errors = false;
 698                         }
 699                 }
 700         return no_errors;
 701 }
 702
 703 bool Converters::Convert(Buffer const * buffer,
 704                         string const & from_file, string const & to_file_base,
 705                         string const & from_format, string const & to_format)
 706 {
 707         string to_file;
 708         return Convert(buffer, from_file, to_file_base, from_format, to_format,
 709                        to_file);
 710 }
 711
 712
 713
 714 void Converters::BuildGraph()
 715 {
 716         vertices = vector<Vertex>(formats.size());
 717         visited.resize(formats.size());
 718
 719         for (ConverterList::iterator it = converterlist.begin();
 720              it != converterlist.end(); ++it) {
 721                 int const s = formats.GetNumber(it->from);
 722                 int const t = formats.GetNumber(it->to);
 723                 vertices[t].in_vertices.push_back(s);
 724                 vertices[s].out_vertices.push_back(t);
 725                 vertices[s].out_edges.push_back(it - converterlist.begin());
 726         }
 727 }
 728
 729
 730 bool Converters::FormatIsUsed(string const & format)
 731 {
 732         for (ConverterList::const_iterator cit = converterlist.begin();
 733             cit != converterlist.end(); ++cit)
 734                 if (cit->from == format || cit->to == format)
 735                         return true;
 736         return false;
 737 }
 738
 739
 740 bool Converters::scanLog(Buffer const * buffer, string const & command,
 741                         string const & filename)
 742 {
 743         if (!buffer)
 744                 return false;
 745
 746         BufferView * bv = buffer->getUser();
 747         bool need_redraw = false;
 748         if (bv) {
 749                 ProhibitInput(bv);
 750                 // Remove all error insets
 751                 need_redraw = bv->removeAutoInsets();
 752         }
 753
 754         LaTeX latex("", filename, "");
 755         TeXErrors terr;
 756         int result = latex.scanLogFile(terr);
 757         if (bv) {
 758                 if ((result & LaTeX::ERRORS)) {
 759                         // Insert all errors as errors boxes
 760                         bv->insertErrors(terr);
 761                         need_redraw = true;
 762                 }
 763                 if (need_redraw) {
 764                         bv->redraw();
 765                         bv->fitCursor(bv->text);
 766                 }
 767                 AllowInput(bv);
 768         }
 769
 770         if ((result & LaTeX::ERRORS)) {
 771                 int num_errors = latex.getNumErrors();
 772                 string s;
 773                 string t;
 774                 if (num_errors == 1) {
 775                         s = _("One error detected");
 776                         t = _("You should try to fix it.");
 777                 } else {
 778                         s = tostr(num_errors);
 779                         s += _(" errors detected.");
 780                         t = _("You should try to fix them.");
 781                 }
 782                 string head;
 783                 split(command, head, ' ');
 784                 WriteAlert(_("There were errors during running of ") + head,
 785                            s, t);
 786                 return false;
 787         } else if (result & LaTeX::NO_OUTPUT) {
 788                 string const s = _("The operation resulted in");
 789                 string const t = _("an empty file.");
 790                 WriteAlert(_("Resulting file is empty"), s, t);
 791                 return false;
 792         }
 793         return true;
 794 }
 795
 796
 797 bool Converters::runLaTeX(Buffer const * buffer, string const & command)
 798 {
 799         if (!buffer)
 800                 return false;
 801
 802         BufferView * bv = buffer->getUser();
 803         string name = buffer->getLatexName();
 804         bool need_redraw = false;
 805
 806         if (bv) {
 807                 ProhibitInput(bv);
 808                 bv->owner()->getMiniBuffer()->Set(_("Running LaTeX..."));
 809                 // Remove all error insets
 810                 need_redraw = bv->removeAutoInsets();
 811         }
 812
 813
 814         // do the LaTex run(s)
 815         TeXErrors terr;
 816         LaTeX latex(command, name, buffer->filepath);
 817         int result = latex.run(terr,
 818                                bv ? bv->owner()->getMiniBuffer() : 0);
 819
 820
 821         if (bv) {
 822                 if ((result & LaTeX::ERRORS)) {
 823                         // Insert all errors as errors boxes
 824                         bv->insertErrors(terr);
 825                         need_redraw = true;
 826                 }
 827
 828                 // if we removed error insets before we ran LaTeX or if we inserted
 829                 // error insets after we ran LaTeX this must be run:
 830                 if (need_redraw) {
 831                         bv->redraw();
 832                         bv->fitCursor(bv->text);
 833                 }
 834         }
 835
 836         // check return value from latex.run().
 837         if ((result & LaTeX::NO_LOGFILE)) {
 838                 WriteAlert(_("LaTeX did not work!"),
 839                            _("Missing log file:"), name);
 840         } else if ((result & LaTeX::ERRORS)) {
 841                 int num_errors = latex.getNumErrors();
 842                 string s;
 843                 string t;
 844                 if (num_errors == 1) {
 845                         s = _("One error detected");
 846                         t = _("You should try to fix it.");
 847                 } else {
 848                         s = tostr(num_errors);
 849                         s += _(" errors detected.");
 850                         t = _("You should try to fix them.");
 851                 }
 852                 WriteAlert(_("There were errors during the LaTeX run."),
 853                            s, t);
 854         }  else if (result & LaTeX::NO_OUTPUT) {
 855                 string const s = _("The operation resulted in");
 856                 string const t = _("an empty file.");
 857                 WriteAlert(_("Resulting file is empty"), s, t);
 858         }
 859
 860         if (bv)
 861                 AllowInput(bv);
 862
 863         int const ERROR_MASK =
 864                         LaTeX::NO_LOGFILE |
 865                         LaTeX::ERRORS |
 866                         LaTeX::NO_OUTPUT;
 867
 868         return (result & ERROR_MASK) == 0;
 869
 870 }
 871
 872
 873 string const Converters::dvi_papersize(Buffer const * buffer)
 874 {
 875         char real_papersize = buffer->params.papersize;
 876         if (real_papersize == BufferParams::PAPER_DEFAULT)
 877                 real_papersize = lyxrc.default_papersize;
 878
 879         switch (real_papersize) {
 880         case BufferParams::PAPER_A3PAPER:
 881                 return "a3";
 882         case BufferParams::PAPER_A4PAPER:
 883                 return "a4";
 884         case BufferParams::PAPER_A5PAPER:
 885                 return "a5";
 886         case BufferParams::PAPER_B5PAPER:
 887                 return "b5";
 888         case BufferParams::PAPER_EXECUTIVEPAPER:
 889                 return "foolscap";
 890         case BufferParams::PAPER_LEGALPAPER:
 891                 return "legal";
 892         case BufferParams::PAPER_USLETTER:
 893         default:
 894                 return "us";
 895         }
 896 }
 897
 898
 899 string const Converters::dvips_options(Buffer const * buffer)
 900 {
 901         string result;
 902         if (!buffer)
 903                 return result;
 904
 905         if (buffer->params.use_geometry
 906             && buffer->params.papersize2 == BufferParams::VM_PAPER_CUSTOM
 907             && !lyxrc.print_paper_dimension_flag.empty()
 908             && !buffer->params.paperwidth.empty()
 909             && !buffer->params.paperheight.empty()) {
 910                 // using a custom papersize
 911                 result = lyxrc.print_paper_dimension_flag;
 912                 result += ' ' + buffer->params.paperwidth;
 913                 result += ',' + buffer->params.paperheight;
 914         } else {
 915                 string paper_option = dvi_papersize(buffer);
 916                 if (paper_option == "us")
 917                         paper_option = "letter";
 918                 if (paper_option != "letter" ||
 919                     buffer->params.orientation != BufferParams::ORIENTATION_LANDSCAPE) {
 920                         // dvips won't accept -t letter -t landscape.  In all other
 921                         // cases, include the paper size explicitly.
 922                         result = lyxrc.print_paper_flag;
 923                         result += ' ' + paper_option;
 924                 }
 925         }
 926         if (buffer->params.orientation == BufferParams::ORIENTATION_LANDSCAPE)
 927                 result += ' ' + lyxrc.print_landscape_flag;
 928         return result;
 929 }
 930
 931 vector<Converters::Vertex> Converters::vertices;
 932
 933
 934 /// The global instance
 935 Formats formats;
 936 Converters converters;
 937
 938 // The global copy after reading lyxrc.defaults
 939 Formats system_formats;
 940 Converters system_converters;