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