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/lstrings.h"
  33 #include "support/os.h"
  34 #include "support/Package.h"
  35 #include "support/Path.h"
  36 #include "support/Systemcall.h"
  37
  38 using namespace std;
  39 using namespace lyx::support;
  40
  41 namespace lyx {
  42
  43 namespace Alert = lyx::frontend::Alert;
  44
  45
  46 namespace {
  47
  48 string const token_from("$$i");
  49 string const token_base("$$b");
  50 string const token_to("$$o");
  51 string const token_path("$$p");
  52 string const token_orig_path("$$r");
  53 string const token_orig_from("$$f");
  54 string const token_encoding("$$e");
  55 string const token_latex_encoding("$$E");
  56
  57
  58 string const add_options(string const & command, string const & options)
  59 {
  60         string head;
  61         string const tail = split(command, head, ' ');
  62         return head + ' ' + options + ' ' + tail;
  63 }
  64
  65
  66 string const dvipdfm_options(BufferParams const & bp)
  67 {
  68         string result;
  69
  70         if (bp.papersize != PAPER_CUSTOM) {
  71                 string const paper_size = bp.paperSizeName(BufferParams::DVIPDFM);
  72                 if (!paper_size.empty())
  73                         result = "-p "+ paper_size;
  74
  75                 if (bp.orientation == ORIENTATION_LANDSCAPE)
  76                         result += " -l";
  77         }
  78
  79         return result;
  80 }
  81
  82
  83 class ConverterEqual {
  84 public:
  85         ConverterEqual(string const & from, string const & to)
  86                 : from_(from), to_(to) {}
  87         bool operator()(Converter const & c) const {
  88                 return c.from == from_ && c.to == to_;
  89         }
  90 private:
  91         string const from_;
  92         string const to_;
  93 };
  94
  95 } // namespace anon
  96
  97
  98 Converter::Converter(string const & f, string const & t,
  99                      string const & c, string const & l)
 100         : from(f), to(t), command(c), flags(l),
 101           From(0), To(0), latex(false), xml(false),
 102           need_aux(false)
 103 {}
 104
 105
 106 void Converter::readFlags()
 107 {
 108         string flag_list(flags);
 109         while (!flag_list.empty()) {
 110                 string flag_name, flag_value;
 111                 flag_list = split(flag_list, flag_value, ',');
 112                 flag_value = split(flag_value, flag_name, '=');
 113                 if (flag_name == "latex") {
 114                         latex = true;
 115                         latex_flavor = flag_value.empty() ?
 116                                 "latex" : flag_value;
 117                 } else if (flag_name == "xml")
 118                         xml = true;
 119                 else if (flag_name == "needaux")
 120                         need_aux = true;
 121                 else if (flag_name == "resultdir")
 122                         result_dir = (flag_value.empty())
 123                                 ? token_base : flag_value;
 124                 else if (flag_name == "resultfile")
 125                         result_file = flag_value;
 126                 else if (flag_name == "parselog")
 127                         parselog = flag_value;
 128         }
 129         if (!result_dir.empty() && result_file.empty())
 130                 result_file = "index." + formats.extension(to);
 131         //if (!contains(command, token_from))
 132         //      latex = true;
 133 }
 134
 135
 136 Converter const * Converters::getConverter(string const & from,
 137                                             string const & to) const
 138 {
 139         ConverterList::const_iterator const cit =
 140                 find_if(converterlist_.begin(), converterlist_.end(),
 141                         ConverterEqual(from, to));
 142         if (cit != converterlist_.end())
 143                 return &(*cit);
 144         else
 145                 return 0;
 146 }
 147
 148
 149 int Converters::getNumber(string const & from, string const & to) const
 150 {
 151         ConverterList::const_iterator const cit =
 152                 find_if(converterlist_.begin(), converterlist_.end(),
 153                         ConverterEqual(from, to));
 154         if (cit != converterlist_.end())
 155                 return distance(converterlist_.begin(), cit);
 156         else
 157                 return -1;
 158 }
 159
 160
 161 void Converters::add(string const & from, string const & to,
 162                      string const & command, string const & flags)
 163 {
 164         formats.add(from);
 165         formats.add(to);
 166         ConverterList::iterator it = find_if(converterlist_.begin(),
 167                                              converterlist_.end(),
 168                                              ConverterEqual(from , to));
 169
 170         Converter converter(from, to, command, flags);
 171         if (it != converterlist_.end() && !flags.empty() && flags[0] == '*') {
 172                 converter = *it;
 173                 converter.command = command;
 174                 converter.flags = flags;
 175         }
 176         converter.readFlags();
 177
 178         // The latex_command is used to update the .aux file when running
 179         // a converter that uses it.
 180         if (converter.latex) {
 181                 if (latex_command_.empty() ||
 182                     converter.latex_flavor == "latex")
 183                         latex_command_ = subst(command, token_from, "");
 184                 if (dvilualatex_command_.empty() ||
 185                     converter.latex_flavor == "dvilualatex")
 186                         dvilualatex_command_ = subst(command, token_from, "");
 187                 if (lualatex_command_.empty() ||
 188                     converter.latex_flavor == "lualatex")
 189                         lualatex_command_ = subst(command, token_from, "");
 190                 if (pdflatex_command_.empty() ||
 191                     converter.latex_flavor == "pdflatex")
 192                         pdflatex_command_ = subst(command, token_from, "");
 193                 if (xelatex_command_.empty() ||
 194                     converter.latex_flavor == "xelatex")
 195                         xelatex_command_ = subst(command, token_from, "");
 196         }
 197
 198         if (it == converterlist_.end()) {
 199                 converterlist_.push_back(converter);
 200         } else {
 201                 converter.From = it->From;
 202                 converter.To = it->To;
 203                 *it = converter;
 204         }
 205 }
 206
 207
 208 void Converters::erase(string const & from, string const & to)
 209 {
 210         ConverterList::iterator const it =
 211                 find_if(converterlist_.begin(),
 212                         converterlist_.end(),
 213                         ConverterEqual(from, to));
 214         if (it != converterlist_.end())
 215                 converterlist_.erase(it);
 216 }
 217
 218
 219 // This method updates the pointers From and To in all the converters.
 220 // The code is not very efficient, but it doesn't matter as the number
 221 // of formats and converters is small.
 222 // Furthermore, this method is called only on startup, or after
 223 // adding/deleting a format in FormPreferences (the latter calls can be
 224 // eliminated if the formats in the Formats class are stored using a map or
 225 // a list (instead of a vector), but this will cause other problems).
 226 void Converters::update(Formats const & formats)
 227 {
 228         ConverterList::iterator it = converterlist_.begin();
 229         ConverterList::iterator end = converterlist_.end();
 230         for (; it != end; ++it) {
 231                 it->From = formats.getFormat(it->from);
 232                 it->To = formats.getFormat(it->to);
 233         }
 234 }
 235
 236
 237 // This method updates the pointers From and To in the last converter.
 238 // It is called when adding a new converter in FormPreferences
 239 void Converters::updateLast(Formats const & formats)
 240 {
 241         if (converterlist_.begin() != converterlist_.end()) {
 242                 ConverterList::iterator it = converterlist_.end() - 1;
 243                 it->From = formats.getFormat(it->from);
 244                 it->To = formats.getFormat(it->to);
 245         }
 246 }
 247
 248
 249 OutputParams::FLAVOR Converters::getFlavor(Graph::EdgePath const & path,
 250                                            Buffer const * buffer)
 251 {
 252         for (Graph::EdgePath::const_iterator cit = path.begin();
 253              cit != path.end(); ++cit) {
 254                 Converter const & conv = converterlist_[*cit];
 255                 if (conv.latex) {
 256                         if (conv.latex_flavor == "latex")
 257                                 return OutputParams::LATEX;
 258                         if (conv.latex_flavor == "xelatex")
 259                                 return OutputParams::XETEX;
 260                         if (conv.latex_flavor == "lualatex")
 261                                 return OutputParams::LUATEX;
 262                         if (conv.latex_flavor == "dvilualatex")
 263                                 return OutputParams::DVILUATEX;
 264                         if (conv.latex_flavor == "pdflatex")
 265                                 return OutputParams::PDFLATEX;
 266                 }
 267                 if (conv.xml)
 268                         return OutputParams::XML;
 269         }
 270         return buffer ? buffer->params().getOutputFlavor()
 271                       : OutputParams::LATEX;
 272 }
 273
 274
 275 bool Converters::convert(Buffer const * buffer,
 276                          FileName const & from_file, FileName const & to_file,
 277                          FileName const & orig_from,
 278                          string const & from_format, string const & to_format,
 279                          ErrorList & errorList, int conversionflags)
 280 {
 281         if (from_format == to_format)
 282                 return move(from_format, from_file, to_file, false);
 283
 284         if ((conversionflags & try_cache) &&
 285             ConverterCache::get().inCache(orig_from, to_format))
 286                 return ConverterCache::get().copy(orig_from, to_format, to_file);
 287
 288         Graph::EdgePath edgepath = getPath(from_format, to_format);
 289         if (edgepath.empty()) {
 290                 if (conversionflags & try_default) {
 291                         // if no special converter defined, then we take the
 292                         // default one from ImageMagic.
 293                         string const from_ext = from_format.empty() ?
 294                                 getExtension(from_file.absFileName()) :
 295                                 formats.extension(from_format);
 296                         string const to_ext = formats.extension(to_format);
 297                         string const command =
 298                                 os::python() + ' ' +
 299                                 quoteName(libFileSearch("scripts", "convertDefault.py").toFilesystemEncoding()) +
 300                                 ' ' +
 301                                 quoteName(from_ext + ':' + from_file.toFilesystemEncoding()) +
 302                                 ' ' +
 303                                 quoteName(to_ext + ':' + to_file.toFilesystemEncoding());
 304                         LYXERR(Debug::FILES, "No converter defined! "
 305                                    "I use convertDefault.py:\n\t" << command);
 306                         Systemcall one;
 307                         one.startscript(Systemcall::Wait, command, buffer ?
 308                                         buffer->filePath() : string());
 309                         if (to_file.isReadableFile()) {
 310                                 if (conversionflags & try_cache)
 311                                         ConverterCache::get().add(orig_from,
 312                                                         to_format, to_file);
 313                                 return true;
 314                         }
 315                 }
 316
 317                 // only warn once per session and per file type
 318                 static std::map<string, string> warned;
 319                 if (warned.find(from_format) != warned.end() && warned.find(from_format)->second == to_format) {
 320                         return false;
 321                 }
 322                 warned.insert(make_pair(from_format, to_format));
 323
 324                 Alert::error(_("Cannot convert file"),
 325                              bformat(_("No information for converting %1$s "
 326                                                     "format files to %2$s.\n"
 327                                                     "Define a converter in the preferences."),
 328                                                         from_ascii(from_format), from_ascii(to_format)));
 329                 return false;
 330         }
 331
 332         // buffer is only invalid for importing, and then runparams is not
 333         // used anyway.
 334         OutputParams runparams(buffer ? &buffer->params().encoding() : 0);
 335         runparams.flavor = getFlavor(edgepath, buffer);
 336
 337         if (buffer) {
 338                 runparams.use_japanese = buffer->params().bufferFormat() == "platex";
 339                 runparams.use_indices = buffer->params().use_indices;
 340                 runparams.bibtex_command = (buffer->params().bibtex_command == "default") ?
 341                         string() : buffer->params().bibtex_command;
 342                 runparams.index_command = (buffer->params().index_command == "default") ?
 343                         string() : buffer->params().index_command;
 344         }
 345
 346         // Some converters (e.g. lilypond) can only output files to the
 347         // current directory, so we need to change the current directory.
 348         // This has the added benefit that all other files that may be
 349         // generated by the converter are deleted when LyX closes and do not
 350         // clutter the real working directory.
 351         // FIXME: This does not work if path is an UNC path on windows
 352         //        (bug 6127).
 353         string const path(onlyPath(from_file.absFileName()));
 354         // Prevent the compiler from optimizing away p
 355         FileName pp(path);
 356         PathChanger p(pp);
 357
 358         // empty the error list before any new conversion takes place.
 359         errorList.clear();
 360
 361         bool run_latex = false;
 362         string from_base = changeExtension(from_file.absFileName(), "");
 363         string to_base = changeExtension(to_file.absFileName(), "");
 364         FileName infile;
 365         FileName outfile = from_file;
 366         for (Graph::EdgePath::const_iterator cit = edgepath.begin();
 367              cit != edgepath.end(); ++cit) {
 368                 Converter const & conv = converterlist_[*cit];
 369                 bool dummy = conv.To->dummy() && conv.to != "program";
 370                 if (!dummy) {
 371                         LYXERR(Debug::FILES, "Converting from  "
 372                                << conv.from << " to " << conv.to);
 373                 }
 374                 infile = outfile;
 375                 outfile = FileName(conv.result_file.empty()
 376                         ? changeExtension(from_file.absFileName(), conv.To->extension())
 377                         : addName(subst(conv.result_dir,
 378                                         token_base, from_base),
 379                                   subst(conv.result_file,
 380                                         token_base, onlyFileName(from_base))));
 381
 382                 // if input and output files are equal, we use a
 383                 // temporary file as intermediary (JMarc)
 384                 FileName real_outfile;
 385                 if (!conv.result_file.empty())
 386                         real_outfile = FileName(changeExtension(from_file.absFileName(),
 387                                 conv.To->extension()));
 388                 if (outfile == infile) {
 389                         real_outfile = infile;
 390                         // when importing, a buffer does not necessarily exist
 391                         if (buffer)
 392                                 outfile = FileName(addName(buffer->temppath(), "tmpfile.out"));
 393                         else
 394                                 outfile = FileName(addName(package().temp_dir().absFileName(),
 395                                                    "tmpfile.out"));
 396                 }
 397
 398                 if (conv.latex) {
 399                         run_latex = true;
 400                         string command = conv.command;
 401                         command = subst(command, token_from, "");
 402                         command = subst(command, token_latex_encoding, buffer ?
 403                                 buffer->params().encoding().latexName() : string());
 404                         LYXERR(Debug::FILES, "Running " << command);
 405                         if (!runLaTeX(*buffer, command, runparams, errorList))
 406                                 return false;
 407                 } else {
 408                         if (conv.need_aux && !run_latex) {
 409                                 string command;
 410                                 switch (runparams.flavor) {
 411                                 case OutputParams::DVILUATEX:
 412                                         command = dvilualatex_command_;
 413                                         break;
 414                                 case OutputParams::LUATEX:
 415                                         command = lualatex_command_;
 416                                         break;
 417                                 case OutputParams::PDFLATEX:
 418                                         command = pdflatex_command_;
 419                                         break;
 420                                 case OutputParams::XETEX:
 421                                         command = xelatex_command_;
 422                                         break;
 423                                 default:
 424                                         command = latex_command_;
 425                                         break;
 426                                 }
 427                                 if (!command.empty()) {
 428                                         LYXERR(Debug::FILES, "Running "
 429                                                 << command
 430                                                 << " to update aux file");
 431                                         if (!runLaTeX(*buffer, command,
 432                                                       runparams, errorList))
 433                                                 return false;
 434                                 }
 435                         }
 436
 437                         // FIXME UNICODE
 438                         string const infile2 =
 439                                 to_utf8(makeRelPath(from_utf8(infile.absFileName()), from_utf8(path)));
 440                         string const outfile2 =
 441                                 to_utf8(makeRelPath(from_utf8(outfile.absFileName()), from_utf8(path)));
 442
 443                         string command = conv.command;
 444                         command = subst(command, token_from, quoteName(infile2));
 445                         command = subst(command, token_base, quoteName(from_base));
 446                         command = subst(command, token_to, quoteName(outfile2));
 447                         command = subst(command, token_path, quoteName(onlyPath(infile.absFileName())));
 448                         command = subst(command, token_orig_path, quoteName(onlyPath(orig_from.absFileName())));
 449                         command = subst(command, token_orig_from, quoteName(onlyFileName(orig_from.absFileName())));
 450                         command = subst(command, token_encoding, buffer ? buffer->params().encoding().iconvName() : string());
 451                         command = libScriptSearch(command);
 452
 453                         if (!conv.parselog.empty())
 454                                 command += " 2> " + quoteName(infile2 + ".out");
 455
 456                         if (conv.from == "dvi" && conv.to == "ps")
 457                                 command = add_options(command,
 458                                                       buffer->params().dvips_options());
 459                         else if (conv.from == "dvi" && prefixIs(conv.to, "pdf"))
 460                                 command = add_options(command,
 461                                                       dvipdfm_options(buffer->params()));
 462
 463                         LYXERR(Debug::FILES, "Calling " << command);
 464                         if (buffer)
 465                                 buffer->message(_("Executing command: ")
 466                                 + from_utf8(command));
 467
 468                         Systemcall one;
 469                         int res;
 470                         if (dummy) {
 471                                 res = one.startscript(Systemcall::DontWait,
 472                                         to_filesystem8bit(from_utf8(command)),
 473                                         buffer ? buffer->filePath() : string());
 474                                 // We're not waiting for the result, so we can't do anything
 475                                 // else here.
 476                         } else {
 477                                 res = one.startscript(Systemcall::Wait,
 478                                                 to_filesystem8bit(from_utf8(command)),
 479                                                 buffer ? buffer->filePath()
 480                                                        : string());
 481                                 if (!real_outfile.empty()) {
 482                                         Mover const & mover = getMover(conv.to);
 483                                         if (!mover.rename(outfile, real_outfile))
 484                                                 res = -1;
 485                                         else
 486                                                 LYXERR(Debug::FILES, "renaming file " << outfile
 487                                                         << " to " << real_outfile);
 488                                         // Finally, don't forget to tell any future
 489                                         // converters to use the renamed file...
 490                                         outfile = real_outfile;
 491                                 }
 492
 493                                 if (!conv.parselog.empty()) {
 494                                         string const logfile =  infile2 + ".log";
 495                                         string const script = libScriptSearch(conv.parselog);
 496                                         string const command2 = script +
 497                                                 " < " + quoteName(infile2 + ".out") +
 498                                                 " > " + quoteName(logfile);
 499                                         one.startscript(Systemcall::Wait,
 500                                                 to_filesystem8bit(from_utf8(command2)),
 501                                                 buffer->filePath());
 502                                         if (!scanLog(*buffer, command, makeAbsPath(logfile, path), errorList))
 503                                                 return false;
 504                                 }
 505                         }
 506
 507                         if (res) {
 508                                 if (conv.to == "program") {
 509                                         Alert::error(_("Build errors"),
 510                                                 _("There were errors during the build process."));
 511                                 } else {
 512 // FIXME: this should go out of here. For example, here we cannot say if
 513 // it is a document (.lyx) or something else. Same goes for elsewhere.
 514                                         Alert::error(_("Cannot convert file"),
 515                                                 bformat(_("An error occurred while running:\n%1$s"),
 516                                                 wrapParas(from_utf8(command))));
 517                                 }
 518                                 return false;
 519                         }
 520                 }
 521         }
 522
 523         Converter const & conv = converterlist_[edgepath.back()];
 524         if (conv.To->dummy())
 525                 return true;
 526
 527         if (!conv.result_dir.empty()) {
 528                 // The converter has put the file(s) in a directory.
 529                 // In this case we ignore the given to_file.
 530                 if (from_base != to_base) {
 531                         string const from = subst(conv.result_dir,
 532                                             token_base, from_base);
 533                         string const to = subst(conv.result_dir,
 534                                           token_base, to_base);
 535                         Mover const & mover = getMover(conv.from);
 536                         if (!mover.rename(FileName(from), FileName(to))) {
 537                                 Alert::error(_("Cannot convert file"),
 538                                         bformat(_("Could not move a temporary directory from %1$s to %2$s."),
 539                                                 from_utf8(from), from_utf8(to)));
 540                                 return false;
 541                         }
 542                 }
 543                 return true;
 544         } else {
 545                 if (conversionflags & try_cache)
 546                         ConverterCache::get().add(orig_from, to_format, outfile);
 547                 return move(conv.to, outfile, to_file, conv.latex);
 548         }
 549 }
 550
 551
 552 bool Converters::move(string const & fmt,
 553                       FileName const & from, FileName const & to, bool copy)
 554 {
 555         if (from == to)
 556                 return true;
 557
 558         bool no_errors = true;
 559         string const path = onlyPath(from.absFileName());
 560         string const base = onlyFileName(removeExtension(from.absFileName()));
 561         string const to_base = removeExtension(to.absFileName());
 562         string const to_extension = getExtension(to.absFileName());
 563
 564         support::FileNameList const files = FileName(path).dirList(getExtension(from.absFileName()));
 565         for (support::FileNameList::const_iterator it = files.begin();
 566              it != files.end(); ++it) {
 567                 string const from2 = it->absFileName();
 568                 string const file2 = onlyFileName(from2);
 569                 if (prefixIs(file2, base)) {
 570                         string const to2 = changeExtension(
 571                                 to_base + file2.substr(base.length()),
 572                                 to_extension);
 573                         LYXERR(Debug::FILES, "moving " << from2 << " to " << to2);
 574
 575                         Mover const & mover = getMover(fmt);
 576                         bool const moved = copy
 577                                 ? mover.copy(*it, FileName(to2))
 578                                 : mover.rename(*it, FileName(to2));
 579                         if (!moved && no_errors) {
 580                                 Alert::error(_("Cannot convert file"),
 581                                         bformat(copy ?
 582                                                 _("Could not copy a temporary file from %1$s to %2$s.") :
 583                                                 _("Could not move a temporary file from %1$s to %2$s."),
 584                                                 from_utf8(from2), from_utf8(to2)));
 585                                 no_errors = false;
 586                         }
 587                 }
 588         }
 589         return no_errors;
 590 }
 591
 592
 593 bool Converters::formatIsUsed(string const & format)
 594 {
 595         ConverterList::const_iterator cit = converterlist_.begin();
 596         ConverterList::const_iterator end = converterlist_.end();
 597         for (; cit != end; ++cit) {
 598                 if (cit->from == format || cit->to == format)
 599                         return true;
 600         }
 601         return false;
 602 }
 603
 604
 605 bool Converters::scanLog(Buffer const & buffer, string const & /*command*/,
 606                          FileName const & filename, ErrorList & errorList)
 607 {
 608         OutputParams runparams(0);
 609         runparams.flavor = OutputParams::LATEX;
 610         LaTeX latex("", runparams, filename);
 611         TeXErrors terr;
 612         int const result = latex.scanLogFile(terr);
 613
 614         if (result & LaTeX::ERRORS)
 615                 buffer.bufferErrors(terr, errorList);
 616
 617         return true;
 618 }
 619
 620
 621 namespace {
 622
 623 class ShowMessage
 624         : public boost::signals::trackable {
 625 public:
 626         ShowMessage(Buffer const & b) : buffer_(b) {}
 627         void operator()(docstring const & msg) const { buffer_.message(msg); }
 628 private:
 629         Buffer const & buffer_;
 630 };
 631
 632 }
 633
 634
 635 bool Converters::runLaTeX(Buffer const & buffer, string const & command,
 636                           OutputParams const & runparams, ErrorList & errorList)
 637 {
 638         buffer.setBusy(true);
 639         buffer.message(_("Running LaTeX..."));
 640
 641         runparams.document_language = buffer.params().language->babel();
 642
 643         // do the LaTeX run(s)
 644         string const name = buffer.latexName();
 645         LaTeX latex(command, runparams, FileName(makeAbsPath(name)),
 646                     buffer.filePath());
 647         TeXErrors terr;
 648         ShowMessage show(buffer);
 649         latex.message.connect(show);
 650         int const result = latex.run(terr);
 651
 652         if (result & LaTeX::ERRORS)
 653                 buffer.bufferErrors(terr, errorList);
 654
 655         // check return value from latex.run().
 656         if ((result & LaTeX::NO_LOGFILE) && !buffer.isClone()) {
 657                 docstring const str =
 658                         bformat(_("LaTeX did not run successfully. "
 659                                                "Additionally, LyX could not locate "
 660                                                "the LaTeX log %1$s."), from_utf8(name));
 661                 Alert::error(_("LaTeX failed"), str);
 662         } else if ((result & LaTeX::NO_OUTPUT) && !buffer.isClone()) {
 663                 Alert::warning(_("Output is empty"),
 664                                _("An empty output file was generated."));
 665         }
 666
 667
 668         buffer.setBusy(false);
 669
 670         int const ERROR_MASK =
 671                         LaTeX::NO_LOGFILE |
 672                         LaTeX::ERRORS |
 673                         LaTeX::NO_OUTPUT;
 674
 675         return (result & ERROR_MASK) == 0;
 676
 677 }
 678
 679
 680
 681 void Converters::buildGraph()
 682 {
 683         // clear graph's data structures
 684         G_.init(formats.size());
 685         // each of the converters knows how to convert one format to another
 686         // so, for each of them, we create an arrow on the graph, going from
 687         // the one to the other
 688         ConverterList::iterator it = converterlist_.begin();
 689         ConverterList::iterator const end = converterlist_.end();
 690         for (; it != end ; ++it) {
 691                 int const from = formats.getNumber(it->from);
 692                 int const to   = formats.getNumber(it->to);
 693                 G_.addEdge(from, to);
 694         }
 695 }
 696
 697
 698 vector<Format const *> const
 699 Converters::intToFormat(vector<int> const & input)
 700 {
 701         vector<Format const *> result(input.size());
 702
 703         vector<int>::const_iterator it = input.begin();
 704         vector<int>::const_iterator const end = input.end();
 705         vector<Format const *>::iterator rit = result.begin();
 706         for ( ; it != end; ++it, ++rit) {
 707                 *rit = &formats.get(*it);
 708         }
 709         return result;
 710 }
 711
 712
 713 vector<Format const *> const
 714 Converters::getReachableTo(string const & target, bool const clear_visited)
 715 {
 716         vector<int> const & reachablesto =
 717                 G_.getReachableTo(formats.getNumber(target), clear_visited);
 718
 719         return intToFormat(reachablesto);
 720 }
 721
 722
 723 vector<Format const *> const
 724 Converters::getReachable(string const & from, bool const only_viewable,
 725                          bool const clear_visited, set<string> const & excludes)
 726 {
 727         set<int> excluded_numbers;;
 728
 729         set<string>::const_iterator sit = excludes.begin();
 730         set<string>::const_iterator const end = excludes.end();
 731         for (; sit != end; ++sit)
 732                 excluded_numbers.insert(formats.getNumber(*sit));
 733
 734         vector<int> const & reachables =
 735                 G_.getReachable(formats.getNumber(from),
 736                                 only_viewable,
 737                                 clear_visited,
 738                                 excluded_numbers);
 739
 740         return intToFormat(reachables);
 741 }
 742
 743
 744 bool Converters::isReachable(string const & from, string const & to)
 745 {
 746         return G_.isReachable(formats.getNumber(from),
 747                               formats.getNumber(to));
 748 }
 749
 750
 751 Graph::EdgePath Converters::getPath(string const & from, string const & to)
 752 {
 753         return G_.getPath(formats.getNumber(from),
 754                           formats.getNumber(to));
 755 }
 756
 757
 758 vector<Format const *> Converters::importableFormats()
 759 {
 760         vector<string> l = loaders();
 761         vector<Format const *> result = getReachableTo(l[0], true);
 762         vector<string>::const_iterator it = l.begin() + 1;
 763         vector<string>::const_iterator en = l.end();
 764         for (; it != en; ++it) {
 765                 vector<Format const *> r = getReachableTo(*it, false);
 766                 result.insert(result.end(), r.begin(), r.end());
 767         }
 768         return result;
 769 }
 770
 771
 772 vector<Format const *> Converters::exportableFormats(bool only_viewable)
 773 {
 774         vector<string> s = savers();
 775         vector<Format const *> result = getReachable(s[0], only_viewable, true);
 776         vector<string>::const_iterator it = s.begin() + 1;
 777         vector<string>::const_iterator en = s.end();
 778         for (; it != en; ++it) {
 779                 vector<Format const *> r =
 780                         getReachable(*it, only_viewable, false);
 781                 result.insert(result.end(), r.begin(), r.end());
 782         }
 783         return result;
 784 }
 785
 786
 787 vector<string> Converters::loaders() const
 788 {
 789         vector<string> v;
 790         v.push_back("lyx");
 791         v.push_back("text");
 792         v.push_back("textparagraph");
 793         return v;
 794 }
 795
 796
 797 vector<string> Converters::savers() const
 798 {
 799         vector<string> v;
 800         v.push_back("docbook");
 801         v.push_back("latex");
 802         v.push_back("literate");
 803         v.push_back("luatex");
 804         v.push_back("dviluatex");
 805         v.push_back("lyx");
 806         v.push_back("xhtml");
 807         v.push_back("pdflatex");
 808         v.push_back("platex");
 809         v.push_back("text");
 810         v.push_back("xetex");
 811         return v;
 812 }
 813
 814
 815 } // namespace lyx