src/Converter.cpp

   1 /**
   2  * \file Converter.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Dekel Tsur
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "Converter.h"
  14
  15 #include "Buffer.h"
  16 #include "buffer_funcs.h"
  17 #include "BufferParams.h"
  18 #include "ConverterCache.h"
  19 #include "Encoding.h"
  20 #include "ErrorList.h"
  21 #include "Format.h"
  22 #include "Language.h"
  23 #include "LaTeX.h"
  24 #include "Mover.h"
  25
  26 #include "frontends/alert.h"
  27
  28 #include "support/debug.h"
  29 #include "support/FileNameList.h"
  30 #include "support/filetools.h"
  31 #include "support/gettext.h"
  32 #include "support/lassert.h"
  33 #include "support/lstrings.h"
  34 #include "support/os.h"
  35 #include "support/Package.h"
  36 #include "support/PathChanger.h"
  37 #include "support/Systemcall.h"
  38
  39 using namespace std;
  40 using namespace lyx::support;
  41
  42 namespace lyx {
  43
  44 namespace Alert = lyx::frontend::Alert;
  45
  46
  47 namespace {
  48
  49 string const token_from("$$i");
  50 string const token_base("$$b");
  51 string const token_to("$$o");
  52 string const token_path("$$p");
  53 string const token_orig_path("$$r");
  54 string const token_orig_from("$$f");
  55 string const token_encoding("$$e");
  56 string const token_latex_encoding("$$E");
  57
  58
  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
  67 string const dvipdfm_options(BufferParams const & bp)
  68 {
  69         string result;
  70
  71         if (bp.papersize != PAPER_CUSTOM) {
  72                 string const paper_size = bp.paperSizeName(BufferParams::DVIPDFM);
  73                 if (!paper_size.empty())
  74                         result = "-p "+ paper_size;
  75
  76                 if (bp.orientation == ORIENTATION_LANDSCAPE)
  77                         result += " -l";
  78         }
  79
  80         return result;
  81 }
  82
  83
  84 class ConverterEqual {
  85 public:
  86         ConverterEqual(string const & from, string const & to)
  87                 : from_(from), to_(to) {}
  88         bool operator()(Converter const & c) const {
  89                 return c.from() == from_ && c.to() == to_;
  90         }
  91 private:
  92         string const from_;
  93         string const to_;
  94 };
  95
  96 } // namespace anon
  97
  98
  99 Converter::Converter(string const & f, string const & t,
 100                      string const & c, string const & l)
 101         : from_(f), to_(t), command_(c), flags_(l),
 102           From_(0), To_(0), latex_(false), xml_(false),
 103           need_aux_(false), nice_(false)
 104 {}
 105
 106
 107 void Converter::readFlags()
 108 {
 109         string flag_list(flags_);
 110         while (!flag_list.empty()) {
 111                 string flag_name, flag_value;
 112                 flag_list = split(flag_list, flag_value, ',');
 113                 flag_value = split(flag_value, flag_name, '=');
 114                 if (flag_name == "latex") {
 115                         latex_ = true;
 116                         latex_flavor_ = flag_value.empty() ?
 117                                 "latex" : flag_value;
 118                 } else if (flag_name == "xml")
 119                         xml_ = true;
 120                 else if (flag_name == "needaux")
 121                         need_aux_ = true;
 122                 else if (flag_name == "resultdir")
 123                         result_dir_ = (flag_value.empty())
 124                                 ? token_base : flag_value;
 125                 else if (flag_name == "resultfile")
 126                         result_file_ = flag_value;
 127                 else if (flag_name == "parselog")
 128                         parselog_ = flag_value;
 129                 else if (flag_name == "nice")
 130                         nice_ = true;
 131         }
 132         if (!result_dir_.empty() && result_file_.empty())
 133                 result_file_ = "index." + formats.extension(to_);
 134         //if (!contains(command, token_from))
 135         //      latex = true;
 136 }
 137
 138
 139 Converter const * Converters::getConverter(string const & from,
 140                                             string const & to) const
 141 {
 142         ConverterList::const_iterator const cit =
 143                 find_if(converterlist_.begin(), converterlist_.end(),
 144                         ConverterEqual(from, to));
 145         if (cit != converterlist_.end())
 146                 return &(*cit);
 147         else
 148                 return 0;
 149 }
 150
 151
 152 int Converters::getNumber(string const & from, string const & to) const
 153 {
 154         ConverterList::const_iterator const cit =
 155                 find_if(converterlist_.begin(), converterlist_.end(),
 156                         ConverterEqual(from, to));
 157         if (cit != converterlist_.end())
 158                 return distance(converterlist_.begin(), cit);
 159         else
 160                 return -1;
 161 }
 162
 163
 164 void Converters::add(string const & from, string const & to,
 165                      string const & command, string const & flags)
 166 {
 167         formats.add(from);
 168         formats.add(to);
 169         ConverterList::iterator it = find_if(converterlist_.begin(),
 170                                              converterlist_.end(),
 171                                              ConverterEqual(from , to));
 172
 173         Converter converter(from, to, command, flags);
 174         if (it != converterlist_.end() && !flags.empty() && flags[0] == '*') {
 175                 converter = *it;
 176                 converter.setCommand(command);
 177                 converter.setFlags(flags);
 178         }
 179         converter.readFlags();
 180
 181         // The latex_command is used to update the .aux file when running
 182         // a converter that uses it.
 183         if (converter.latex()) {
 184                 if (latex_command_.empty() ||
 185                     converter.latex_flavor() == "latex")
 186                         latex_command_ = subst(command, token_from, "");
 187                 if (dvilualatex_command_.empty() ||
 188                     converter.latex_flavor() == "dvilualatex")
 189                         dvilualatex_command_ = subst(command, token_from, "");
 190                 if (lualatex_command_.empty() ||
 191                     converter.latex_flavor() == "lualatex")
 192                         lualatex_command_ = subst(command, token_from, "");
 193                 if (pdflatex_command_.empty() ||
 194                     converter.latex_flavor() == "pdflatex")
 195                         pdflatex_command_ = subst(command, token_from, "");
 196                 if (xelatex_command_.empty() ||
 197                     converter.latex_flavor() == "xelatex")
 198                         xelatex_command_ = subst(command, token_from, "");
 199         }
 200
 201         if (it == converterlist_.end()) {
 202                 converterlist_.push_back(converter);
 203         } else {
 204                 converter.setFrom(it->From());
 205                 converter.setTo(it->To());
 206                 *it = converter;
 207         }
 208 }
 209
 210
 211 void Converters::erase(string const & from, string const & to)
 212 {
 213         ConverterList::iterator const it =
 214                 find_if(converterlist_.begin(),
 215                         converterlist_.end(),
 216                         ConverterEqual(from, to));
 217         if (it != converterlist_.end())
 218                 converterlist_.erase(it);
 219 }
 220
 221
 222 // This method updates the pointers From and To in all the converters.
 223 // The code is not very efficient, but it doesn't matter as the number
 224 // of formats and converters is small.
 225 // Furthermore, this method is called only on startup, or after
 226 // adding/deleting a format in FormPreferences (the latter calls can be
 227 // eliminated if the formats in the Formats class are stored using a map or
 228 // a list (instead of a vector), but this will cause other problems).
 229 void Converters::update(Formats const & formats)
 230 {
 231         ConverterList::iterator it = converterlist_.begin();
 232         ConverterList::iterator end = converterlist_.end();
 233         for (; it != end; ++it) {
 234                 it->setFrom(formats.getFormat(it->from()));
 235                 it->setTo(formats.getFormat(it->to()));
 236         }
 237 }
 238
 239
 240 // This method updates the pointers From and To in the last converter.
 241 // It is called when adding a new converter in FormPreferences
 242 void Converters::updateLast(Formats const & formats)
 243 {
 244         if (converterlist_.begin() != converterlist_.end()) {
 245                 ConverterList::iterator it = converterlist_.end() - 1;
 246                 it->setFrom(formats.getFormat(it->from()));
 247                 it->setTo(formats.getFormat(it->to()));
 248         }
 249 }
 250
 251
 252 OutputParams::FLAVOR Converters::getFlavor(Graph::EdgePath const & path,
 253                                            Buffer const * buffer)
 254 {
 255         for (Graph::EdgePath::const_iterator cit = path.begin();
 256              cit != path.end(); ++cit) {
 257                 Converter const & conv = converterlist_[*cit];
 258                 if (conv.latex()) {
 259                         if (conv.latex_flavor() == "latex")
 260                                 return OutputParams::LATEX;
 261                         if (conv.latex_flavor() == "xelatex")
 262                                 return OutputParams::XETEX;
 263                         if (conv.latex_flavor() == "lualatex")
 264                                 return OutputParams::LUATEX;
 265                         if (conv.latex_flavor() == "dvilualatex")
 266                                 return OutputParams::DVILUATEX;
 267                         if (conv.latex_flavor() == "pdflatex")
 268                                 return OutputParams::PDFLATEX;
 269                 }
 270                 if (conv.xml())
 271                         return OutputParams::XML;
 272         }
 273         return buffer ? buffer->params().getOutputFlavor()
 274                       : OutputParams::LATEX;
 275 }
 276
 277
 278 bool Converters::convert(Buffer const * buffer,
 279                          FileName const & from_file, FileName const & to_file,
 280                          FileName const & orig_from,
 281                          string const & from_format, string const & to_format,
 282                          ErrorList & errorList, int conversionflags)
 283 {
 284         if (from_format == to_format)
 285                 return move(from_format, from_file, to_file, false);
 286
 287         if ((conversionflags & try_cache) &&
 288             ConverterCache::get().inCache(orig_from, to_format))
 289                 return ConverterCache::get().copy(orig_from, to_format, to_file);
 290
 291         Graph::EdgePath edgepath = getPath(from_format, to_format);
 292         if (edgepath.empty()) {
 293                 if (conversionflags & try_default) {
 294                         // if no special converter defined, then we take the
 295                         // default one from ImageMagic.
 296                         string const from_ext = from_format.empty() ?
 297                                 getExtension(from_file.absFileName()) :
 298                                 formats.extension(from_format);
 299                         string const to_ext = formats.extension(to_format);
 300                         string const command =
 301                                 os::python() + ' ' +
 302                                 quoteName(libFileSearch("scripts", "convertDefault.py").toFilesystemEncoding()) +
 303                                 ' ' + from_ext + ' ' +
 304                                 quoteName(from_file.toFilesystemEncoding()) +
 305                                 ' ' + to_ext + ' ' +
 306                                 quoteName(to_file.toFilesystemEncoding());
 307                         LYXERR(Debug::FILES, "No converter defined! "
 308                                    "I use convertDefault.py:\n\t" << command);
 309                         Systemcall one;
 310                         one.startscript(Systemcall::Wait, command,
 311                                         buffer ? buffer->filePath() : string(),
 312                                         buffer ? buffer->layoutPos() : string());
 313                         if (to_file.isReadableFile()) {
 314                                 if (conversionflags & try_cache)
 315                                         ConverterCache::get().add(orig_from,
 316                                                         to_format, to_file);
 317                                 return true;
 318                         }
 319                 }
 320
 321                 // only warn once per session and per file type
 322                 static std::map<string, string> warned;
 323                 if (warned.find(from_format) != warned.end() && warned.find(from_format)->second == to_format) {
 324                         return false;
 325                 }
 326                 warned.insert(make_pair(from_format, to_format));
 327
 328                 Alert::error(_("Cannot convert file"),
 329                              bformat(_("No information for converting %1$s "
 330                                                     "format files to %2$s.\n"
 331                                                     "Define a converter in the preferences."),
 332                                                         from_ascii(from_format), from_ascii(to_format)));
 333                 return false;
 334         }
 335
 336         // buffer is only invalid for importing, and then runparams is not
 337         // used anyway.
 338         OutputParams runparams(buffer ? &buffer->params().encoding() : 0);
 339         runparams.flavor = getFlavor(edgepath, buffer);
 340
 341         if (buffer) {
 342                 runparams.use_japanese =
 343                         buffer->params().bufferFormat() == "latex"
 344                         && buffer->params().encoding().package() == Encoding::japanese;
 345                 runparams.use_indices = buffer->params().use_indices;
 346                 runparams.bibtex_command = (buffer->params().bibtex_command == "default") ?
 347                         string() : buffer->params().bibtex_command;
 348                 runparams.index_command = (buffer->params().index_command == "default") ?
 349                         string() : buffer->params().index_command;
 350                 runparams.document_language = buffer->params().language->babel();
 351         }
 352
 353         // Some converters (e.g. lilypond) can only output files to the
 354         // current directory, so we need to change the current directory.
 355         // This has the added benefit that all other files that may be
 356         // generated by the converter are deleted when LyX closes and do not
 357         // clutter the real working directory.
 358         // FIXME: This does not work if path is an UNC path on windows
 359         //        (bug 6127).
 360         string const path(onlyPath(from_file.absFileName()));
 361         // Prevent the compiler from optimizing away p
 362         FileName pp(path);
 363         PathChanger p(pp);
 364
 365         // empty the error list before any new conversion takes place.
 366         errorList.clear();
 367
 368         bool run_latex = false;
 369         string from_base = changeExtension(from_file.absFileName(), "");
 370         string to_base = changeExtension(to_file.absFileName(), "");
 371         FileName infile;
 372         FileName outfile = from_file;
 373         for (Graph::EdgePath::const_iterator cit = edgepath.begin();
 374              cit != edgepath.end(); ++cit) {
 375                 Converter const & conv = converterlist_[*cit];
 376                 bool dummy = conv.To()->dummy() && conv.to() != "program";
 377                 if (!dummy) {
 378                         LYXERR(Debug::FILES, "Converting from  "
 379                                << conv.from() << " to " << conv.to());
 380                 }
 381                 infile = outfile;
 382                 outfile = FileName(conv.result_file().empty()
 383                         ? changeExtension(from_file.absFileName(), conv.To()->extension())
 384                         : addName(subst(conv.result_dir(),
 385                                         token_base, from_base),
 386                                   subst(conv.result_file(),
 387                                         token_base, onlyFileName(from_base))));
 388
 389                 // if input and output files are equal, we use a
 390                 // temporary file as intermediary (JMarc)
 391                 FileName real_outfile;
 392                 if (!conv.result_file().empty())
 393                         real_outfile = FileName(changeExtension(from_file.absFileName(),
 394                                 conv.To()->extension()));
 395                 if (outfile == infile) {
 396                         real_outfile = infile;
 397                         // when importing, a buffer does not necessarily exist
 398                         if (buffer)
 399                                 outfile = FileName(addName(buffer->temppath(), "tmpfile.out"));
 400                         else
 401                                 outfile = FileName(addName(package().temp_dir().absFileName(),
 402                                                    "tmpfile.out"));
 403                 }
 404
 405                 if (conv.latex()) {
 406                         run_latex = true;
 407                         string command = conv.command();
 408                         command = subst(command, token_from, "");
 409                         command = subst(command, token_latex_encoding, buffer ?
 410                                 buffer->params().encoding().latexName() : string());
 411                         LYXERR(Debug::FILES, "Running " << command);
 412                         if (!runLaTeX(*buffer, command, runparams, errorList))
 413                                 return false;
 414                 } else {
 415                         if (conv.need_aux() && !run_latex) {
 416                                 string command;
 417                                 switch (runparams.flavor) {
 418                                 case OutputParams::DVILUATEX:
 419                                         command = dvilualatex_command_;
 420                                         break;
 421                                 case OutputParams::LUATEX:
 422                                         command = lualatex_command_;
 423                                         break;
 424                                 case OutputParams::PDFLATEX:
 425                                         command = pdflatex_command_;
 426                                         break;
 427                                 case OutputParams::XETEX:
 428                                         command = xelatex_command_;
 429                                         break;
 430                                 default:
 431                                         command = latex_command_;
 432                                         break;
 433                                 }
 434                                 if (!command.empty()) {
 435                                         LYXERR(Debug::FILES, "Running "
 436                                                 << command
 437                                                 << " to update aux file");
 438                                         if (!runLaTeX(*buffer, command,
 439                                                       runparams, errorList))
 440                                                 return false;
 441                                 }
 442                         }
 443
 444                         // FIXME UNICODE
 445                         string const infile2 =
 446                                 to_utf8(makeRelPath(from_utf8(infile.absFileName()), from_utf8(path)));
 447                         string const outfile2 =
 448                                 to_utf8(makeRelPath(from_utf8(outfile.absFileName()), from_utf8(path)));
 449
 450                         string command = conv.command();
 451                         command = subst(command, token_from, quoteName(infile2));
 452                         command = subst(command, token_base, quoteName(from_base));
 453                         command = subst(command, token_to, quoteName(outfile2));
 454                         command = subst(command, token_path, quoteName(onlyPath(infile.absFileName())));
 455                         command = subst(command, token_orig_path, quoteName(onlyPath(orig_from.absFileName())));
 456                         command = subst(command, token_orig_from, quoteName(onlyFileName(orig_from.absFileName())));
 457                         command = subst(command, token_encoding, buffer ? buffer->params().encoding().iconvName() : string());
 458
 459                         if (!conv.parselog().empty())
 460                                 command += " 2> " + quoteName(infile2 + ".out");
 461
 462                         // it is not actually not necessary to test for buffer here,
 463                         // but it pleases coverity.
 464                         if (buffer && conv.from() == "dvi" && conv.to() == "ps")
 465                                 command = add_options(command,
 466                                                       buffer->params().dvips_options());
 467                         else if (buffer && conv.from() == "dvi" && prefixIs(conv.to(), "pdf"))
 468                                 command = add_options(command,
 469                                                       dvipdfm_options(buffer->params()));
 470
 471                         LYXERR(Debug::FILES, "Calling " << command);
 472                         if (buffer)
 473                                 buffer->message(_("Executing command: ")
 474                                 + from_utf8(command));
 475
 476                         Systemcall one;
 477                         int res;
 478                         if (dummy) {
 479                                 res = one.startscript(Systemcall::DontWait,
 480                                         to_filesystem8bit(from_utf8(command)),
 481                                         buffer ? buffer->filePath() : string(),
 482                                         buffer ? buffer->layoutPos() : string());
 483                                 // We're not waiting for the result, so we can't do anything
 484                                 // else here.
 485                         } else {
 486                                 res = one.startscript(Systemcall::Wait,
 487                                                 to_filesystem8bit(from_utf8(command)),
 488                                                 buffer ? buffer->filePath()
 489                                                        : string(),
 490                                                 buffer ? buffer->layoutPos()
 491                                                        : string());
 492                                 if (!real_outfile.empty()) {
 493                                         Mover const & mover = getMover(conv.to());
 494                                         if (!mover.rename(outfile, real_outfile))
 495                                                 res = -1;
 496                                         else
 497                                                 LYXERR(Debug::FILES, "renaming file " << outfile
 498                                                         << " to " << real_outfile);
 499                                         // Finally, don't forget to tell any future
 500                                         // converters to use the renamed file...
 501                                         outfile = real_outfile;
 502                                 }
 503
 504                                 if (!conv.parselog().empty()) {
 505                                         string const logfile =  infile2 + ".log";
 506                                         string const command2 = conv.parselog() +
 507                                                 " < " + quoteName(infile2 + ".out") +
 508                                                 " > " + quoteName(logfile);
 509                                         one.startscript(Systemcall::Wait,
 510                                                 to_filesystem8bit(from_utf8(command2)),
 511                                                 buffer->filePath(),
 512                                                 buffer->layoutPos());
 513                                         if (!scanLog(*buffer, command, makeAbsPath(logfile, path), errorList))
 514                                                 return false;
 515                                 }
 516                         }
 517
 518                         if (res) {
 519                                 if (conv.to() == "program") {
 520                                         Alert::error(_("Build errors"),
 521                                                 _("There were errors during the build process."));
 522                                 } else {
 523 // FIXME: this should go out of here. For example, here we cannot say if
 524 // it is a document (.lyx) or something else. Same goes for elsewhere.
 525                                         Alert::error(_("Cannot convert file"),
 526                                                 bformat(_("An error occurred while running:\n%1$s"),
 527                                                 wrapParas(from_utf8(command))));
 528                                 }
 529                                 return false;
 530                         }
 531                 }
 532         }
 533
 534         Converter const & conv = converterlist_[edgepath.back()];
 535         if (conv.To()->dummy())
 536                 return true;
 537
 538         if (!conv.result_dir().empty()) {
 539                 // The converter has put the file(s) in a directory.
 540                 // In this case we ignore the given to_file.
 541                 if (from_base != to_base) {
 542                         string const from = subst(conv.result_dir(),
 543                                             token_base, from_base);
 544                         string const to = subst(conv.result_dir(),
 545                                           token_base, to_base);
 546                         Mover const & mover = getMover(conv.from());
 547                         if (!mover.rename(FileName(from), FileName(to))) {
 548                                 Alert::error(_("Cannot convert file"),
 549                                         bformat(_("Could not move a temporary directory from %1$s to %2$s."),
 550                                                 from_utf8(from), from_utf8(to)));
 551                                 return false;
 552                         }
 553                 }
 554                 return true;
 555         } else {
 556                 if (conversionflags & try_cache)
 557                         ConverterCache::get().add(orig_from, to_format, outfile);
 558                 return move(conv.to(), outfile, to_file, conv.latex());
 559         }
 560 }
 561
 562
 563 bool Converters::move(string const & fmt,
 564                       FileName const & from, FileName const & to, bool copy)
 565 {
 566         if (from == to)
 567                 return true;
 568
 569         bool no_errors = true;
 570         string const path = onlyPath(from.absFileName());
 571         string const base = onlyFileName(removeExtension(from.absFileName()));
 572         string const to_base = removeExtension(to.absFileName());
 573         string const to_extension = getExtension(to.absFileName());
 574
 575         support::FileNameList const files = FileName(path).dirList(getExtension(from.absFileName()));
 576         for (support::FileNameList::const_iterator it = files.begin();
 577              it != files.end(); ++it) {
 578                 string const from2 = it->absFileName();
 579                 string const file2 = onlyFileName(from2);
 580                 if (prefixIs(file2, base)) {
 581                         string const to2 = changeExtension(
 582                                 to_base + file2.substr(base.length()),
 583                                 to_extension);
 584                         LYXERR(Debug::FILES, "moving " << from2 << " to " << to2);
 585
 586                         Mover const & mover = getMover(fmt);
 587                         bool const moved = copy
 588                                 ? mover.copy(*it, FileName(to2))
 589                                 : mover.rename(*it, FileName(to2));
 590                         if (!moved && no_errors) {
 591                                 Alert::error(_("Cannot convert file"),
 592                                         bformat(copy ?
 593                                                 _("Could not copy a temporary file from %1$s to %2$s.") :
 594                                                 _("Could not move a temporary file from %1$s to %2$s."),
 595                                                 from_utf8(from2), from_utf8(to2)));
 596                                 no_errors = false;
 597                         }
 598                 }
 599         }
 600         return no_errors;
 601 }
 602
 603
 604 bool Converters::formatIsUsed(string const & format)
 605 {
 606         ConverterList::const_iterator cit = converterlist_.begin();
 607         ConverterList::const_iterator end = converterlist_.end();
 608         for (; cit != end; ++cit) {
 609                 if (cit->from() == format || cit->to() == format)
 610                         return true;
 611         }
 612         return false;
 613 }
 614
 615
 616 bool Converters::scanLog(Buffer const & buffer, string const & /*command*/,
 617                          FileName const & filename, ErrorList & errorList)
 618 {
 619         OutputParams runparams(0);
 620         runparams.flavor = OutputParams::LATEX;
 621         LaTeX latex("", runparams, filename);
 622         TeXErrors terr;
 623         int const result = latex.scanLogFile(terr);
 624
 625         if (result & LaTeX::ERRORS)
 626                 buffer.bufferErrors(terr, errorList);
 627
 628         return true;
 629 }
 630
 631
 632 namespace {
 633
 634 class ShowMessage
 635         : public boost::signals2::trackable {
 636 public:
 637         ShowMessage(Buffer const & b) : buffer_(b) {}
 638         void operator()(docstring const & msg) const { buffer_.message(msg); }
 639 private:
 640         Buffer const & buffer_;
 641 };
 642
 643 }
 644
 645
 646 bool Converters::runLaTeX(Buffer const & buffer, string const & command,
 647                           OutputParams const & runparams, ErrorList & errorList)
 648 {
 649         buffer.setBusy(true);
 650         buffer.message(_("Running LaTeX..."));
 651
 652         // do the LaTeX run(s)
 653         string const name = buffer.latexName();
 654         LaTeX latex(command, runparams, FileName(makeAbsPath(name)),
 655                     buffer.filePath(), buffer.layoutPos(),
 656                     buffer.lastPreviewError());
 657         TeXErrors terr;
 658         ShowMessage show(buffer);
 659         latex.message.connect(show);
 660         int const result = latex.run(terr);
 661
 662         if (result & LaTeX::ERRORS)
 663                 buffer.bufferErrors(terr, errorList);
 664
 665         if (!errorList.empty()) {
 666           // We will show the LaTeX Errors GUI later which contains
 667           // specific error messages so it would be repetitive to give
 668           // e.g. the "finished with an error" dialog in addition.
 669         }
 670         else if (result & LaTeX::NO_LOGFILE) {
 671                 docstring const str =
 672                         bformat(_("LaTeX did not run successfully. "
 673                                                "Additionally, LyX could not locate "
 674                                                "the LaTeX log %1$s."), from_utf8(name));
 675                 Alert::error(_("LaTeX failed"), str);
 676         } else if (result & LaTeX::NONZERO_ERROR) {
 677                 docstring const str =
 678                         bformat(_( "The external program\n%1$s\n"
 679                               "finished with an error. "
 680                               "It is recommended you fix the cause of the external "
 681                               "program's error (check the logs). "), from_utf8(command));
 682                 Alert::error(_("LaTeX failed"), str);
 683         } else if (result & LaTeX::NO_OUTPUT) {
 684                 Alert::warning(_("Output is empty"),
 685                                _("No output file was generated."));
 686         }
 687
 688
 689         buffer.setBusy(false);
 690
 691         int const ERROR_MASK =
 692                         LaTeX::NO_LOGFILE |
 693                         LaTeX::ERRORS |
 694                         LaTeX::NO_OUTPUT;
 695
 696         return (result & ERROR_MASK) == 0;
 697 }
 698
 699
 700
 701 void Converters::buildGraph()
 702 {
 703         // clear graph's data structures
 704         G_.init(formats.size());
 705         // each of the converters knows how to convert one format to another
 706         // so, for each of them, we create an arrow on the graph, going from
 707         // the one to the other
 708         ConverterList::iterator it = converterlist_.begin();
 709         ConverterList::iterator const end = converterlist_.end();
 710         for (; it != end ; ++it) {
 711                 int const from = formats.getNumber(it->from());
 712                 int const to   = formats.getNumber(it->to());
 713                 LASSERT(from >= 0, continue);
 714                 LASSERT(to >= 0, continue);
 715                 G_.addEdge(from, to);
 716         }
 717 }
 718
 719
 720 vector<Format const *> const
 721 Converters::intToFormat(vector<int> const & input)
 722 {
 723         vector<Format const *> result(input.size());
 724
 725         vector<int>::const_iterator it = input.begin();
 726         vector<int>::const_iterator const end = input.end();
 727         vector<Format const *>::iterator rit = result.begin();
 728         for ( ; it != end; ++it, ++rit) {
 729                 *rit = &formats.get(*it);
 730         }
 731         return result;
 732 }
 733
 734
 735 vector<Format const *> const
 736 Converters::getReachableTo(string const & target, bool const clear_visited)
 737 {
 738         vector<int> const & reachablesto =
 739                 G_.getReachableTo(formats.getNumber(target), clear_visited);
 740
 741         return intToFormat(reachablesto);
 742 }
 743
 744
 745 vector<Format const *> const
 746 Converters::getReachable(string const & from, bool const only_viewable,
 747                          bool const clear_visited, set<string> const & excludes)
 748 {
 749         set<int> excluded_numbers;
 750
 751         set<string>::const_iterator sit = excludes.begin();
 752         set<string>::const_iterator const end = excludes.end();
 753         for (; sit != end; ++sit)
 754                 excluded_numbers.insert(formats.getNumber(*sit));
 755
 756         vector<int> const & reachables =
 757                 G_.getReachable(formats.getNumber(from),
 758                                 only_viewable,
 759                                 clear_visited,
 760                                 excluded_numbers);
 761
 762         return intToFormat(reachables);
 763 }
 764
 765
 766 bool Converters::isReachable(string const & from, string const & to)
 767 {
 768         return G_.isReachable(formats.getNumber(from),
 769                               formats.getNumber(to));
 770 }
 771
 772
 773 Graph::EdgePath Converters::getPath(string const & from, string const & to)
 774 {
 775         return G_.getPath(formats.getNumber(from),
 776                           formats.getNumber(to));
 777 }
 778
 779
 780 vector<Format const *> Converters::importableFormats()
 781 {
 782         vector<string> l = loaders();
 783         vector<Format const *> result = getReachableTo(l[0], true);
 784         vector<string>::const_iterator it = l.begin() + 1;
 785         vector<string>::const_iterator en = l.end();
 786         for (; it != en; ++it) {
 787                 vector<Format const *> r = getReachableTo(*it, false);
 788                 result.insert(result.end(), r.begin(), r.end());
 789         }
 790         return result;
 791 }
 792
 793
 794 vector<Format const *> Converters::exportableFormats(bool only_viewable)
 795 {
 796         vector<string> s = savers();
 797         vector<Format const *> result = getReachable(s[0], only_viewable, true);
 798         vector<string>::const_iterator it = s.begin() + 1;
 799         vector<string>::const_iterator en = s.end();
 800         for (; it != en; ++it) {
 801                 vector<Format const *> r =
 802                         getReachable(*it, only_viewable, false);
 803                 result.insert(result.end(), r.begin(), r.end());
 804         }
 805         return result;
 806 }
 807
 808
 809 vector<string> Converters::loaders() const
 810 {
 811         vector<string> v;
 812         v.push_back("lyx");
 813         v.push_back("text");
 814         v.push_back("textparagraph");
 815         return v;
 816 }
 817
 818
 819 vector<string> Converters::savers() const
 820 {
 821         vector<string> v;
 822         v.push_back("docbook");
 823         v.push_back("latex");
 824         v.push_back("literate");
 825         v.push_back("luatex");
 826         v.push_back("dviluatex");
 827         v.push_back("lyx");
 828         v.push_back("xhtml");
 829         v.push_back("pdflatex");
 830         v.push_back("platex");
 831         v.push_back("text");
 832         v.push_back("xetex");
 833         return v;
 834 }
 835
 836
 837 } // namespace lyx