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 "ConverterCache.h"
  16 #include "Buffer.h"
  17 #include "buffer_funcs.h"
  18 #include "BufferParams.h"
  19 #include "ErrorList.h"
  20 #include "Format.h"
  21 #include "Language.h"
  22 #include "LaTeX.h"
  23 #include "Mover.h"
  24
  25 #include "frontends/alert.h"
  26
  27 #include "support/debug.h"
  28 #include "support/FileNameList.h"
  29 #include "support/filetools.h"
  30 #include "support/gettext.h"
  31 #include "support/lstrings.h"
  32 #include "support/os.h"
  33 #include "support/Package.h"
  34 #include "support/Path.h"
  35 #include "support/Systemcall.h"
  36
  37 using namespace std;
  38 using namespace lyx::support;
  39
  40 namespace lyx {
  41
  42 namespace Alert = lyx::frontend::Alert;
  43
  44
  45 namespace {
  46
  47 string const token_from("$$i");
  48 string const token_base("$$b");
  49 string const token_to("$$o");
  50 string const token_path("$$p");
  51
  52
  53
  54 string const add_options(string const & command, string const & options)
  55 {
  56         string head;
  57         string const tail = split(command, head, ' ');
  58         return head + ' ' + options + ' ' + tail;
  59 }
  60
  61
  62 string const dvipdfm_options(BufferParams const & bp)
  63 {
  64         string result;
  65
  66         if (bp.papersize != PAPER_CUSTOM) {
  67                 string const paper_size = bp.paperSizeName(BufferParams::DVIPDFM);
  68                 if (!paper_size.empty())
  69                         result = "-p "+ paper_size;
  70
  71                 if (bp.orientation == ORIENTATION_LANDSCAPE)
  72                         result += " -l";
  73         }
  74
  75         return result;
  76 }
  77
  78
  79 class ConverterEqual {
  80 public:
  81         ConverterEqual(string const & from, string const & to)
  82                 : from_(from), to_(to) {}
  83         bool operator()(Converter const & c) const {
  84                 return c.from == from_ && c.to == to_;
  85         }
  86 private:
  87         string const from_;
  88         string const to_;
  89 };
  90
  91 } // namespace anon
  92
  93
  94 Converter::Converter(string const & f, string const & t,
  95                      string const & c, string const & l)
  96         : from(f), to(t), command(c), flags(l),
  97           From(0), To(0), latex(false), xml(false),
  98           need_aux(false)
  99 {}
 100
 101
 102 void Converter::readFlags()
 103 {
 104         string flag_list(flags);
 105         while (!flag_list.empty()) {
 106                 string flag_name, flag_value;
 107                 flag_list = split(flag_list, flag_value, ',');
 108                 flag_value = split(flag_value, flag_name, '=');
 109                 if (flag_name == "latex")
 110                         latex = true;
 111                 else if (flag_name == "xml")
 112                         xml = true;
 113                 else if (flag_name == "needaux")
 114                         need_aux = true;
 115                 else if (flag_name == "resultdir")
 116                         result_dir = (flag_value.empty())
 117                                 ? token_base : flag_value;
 118                 else if (flag_name == "resultfile")
 119                         result_file = flag_value;
 120                 else if (flag_name == "parselog")
 121                         parselog = flag_value;
 122         }
 123         if (!result_dir.empty() && result_file.empty())
 124                 result_file = "index." + formats.extension(to);
 125         //if (!contains(command, token_from))
 126         //      latex = true;
 127 }
 128
 129
 130 bool operator<(Converter const & a, Converter const & b)
 131 {
 132         // use the compare_ascii_no_case instead of compare_no_case,
 133         // because in turkish, 'i' is not the lowercase version of 'I',
 134         // and thus turkish locale breaks parsing of tags.
 135         int const i = compare_ascii_no_case(a.From->prettyname(),
 136                                             b.From->prettyname());
 137         if (i == 0)
 138                 return compare_ascii_no_case(a.To->prettyname(),
 139                                              b.To->prettyname()) < 0;
 140         else
 141                 return i < 0;
 142 }
 143
 144
 145 Converter const * Converters::getConverter(string const & from,
 146                                             string const & to) const
 147 {
 148         ConverterList::const_iterator const cit =
 149                 find_if(converterlist_.begin(), converterlist_.end(),
 150                         ConverterEqual(from, to));
 151         if (cit != converterlist_.end())
 152                 return &(*cit);
 153         else
 154                 return 0;
 155 }
 156
 157
 158 int Converters::getNumber(string const & from, string const & to) const
 159 {
 160         ConverterList::const_iterator const cit =
 161                 find_if(converterlist_.begin(), converterlist_.end(),
 162                         ConverterEqual(from, to));
 163         if (cit != converterlist_.end())
 164                 return distance(converterlist_.begin(), cit);
 165         else
 166                 return -1;
 167 }
 168
 169
 170 void Converters::add(string const & from, string const & to,
 171                      string const & command, string const & flags)
 172 {
 173         formats.add(from);
 174         formats.add(to);
 175         ConverterList::iterator it = find_if(converterlist_.begin(),
 176                                              converterlist_.end(),
 177                                              ConverterEqual(from , to));
 178
 179         Converter converter(from, to, command, flags);
 180         if (it != converterlist_.end() && !flags.empty() && flags[0] == '*') {
 181                 converter = *it;
 182                 converter.command = command;
 183                 converter.flags = flags;
 184         }
 185         converter.readFlags();
 186
 187         if (converter.latex && (latex_command_.empty() || to == "dvi"))
 188                 latex_command_ = subst(command, token_from, "");
 189         // If we have both latex & pdflatex, we set latex_command to latex.
 190         // The latex_command is used to update the .aux file when running
 191         // a converter that uses it.
 192
 193         if (it == converterlist_.end()) {
 194                 converterlist_.push_back(converter);
 195         } else {
 196                 converter.From = it->From;
 197                 converter.To = it->To;
 198                 *it = converter;
 199         }
 200 }
 201
 202
 203 void Converters::erase(string const & from, string const & to)
 204 {
 205         ConverterList::iterator const it =
 206                 find_if(converterlist_.begin(),
 207                         converterlist_.end(),
 208                         ConverterEqual(from, to));
 209         if (it != converterlist_.end())
 210                 converterlist_.erase(it);
 211 }
 212
 213
 214 // This method updates the pointers From and To in all the converters.
 215 // The code is not very efficient, but it doesn't matter as the number
 216 // of formats and converters is small.
 217 // Furthermore, this method is called only on startup, or after
 218 // adding/deleting a format in FormPreferences (the latter calls can be
 219 // eliminated if the formats in the Formats class are stored using a map or
 220 // a list (instead of a vector), but this will cause other problems).
 221 void Converters::update(Formats const & formats)
 222 {
 223         ConverterList::iterator it = converterlist_.begin();
 224         ConverterList::iterator end = converterlist_.end();
 225         for (; it != end; ++it) {
 226                 it->From = formats.getFormat(it->from);
 227                 it->To = formats.getFormat(it->to);
 228         }
 229 }
 230
 231
 232 // This method updates the pointers From and To in the last converter.
 233 // It is called when adding a new converter in FormPreferences
 234 void Converters::updateLast(Formats const & formats)
 235 {
 236         if (converterlist_.begin() != converterlist_.end()) {
 237                 ConverterList::iterator it = converterlist_.end() - 1;
 238                 it->From = formats.getFormat(it->from);
 239                 it->To = formats.getFormat(it->to);
 240         }
 241 }
 242
 243
 244 void Converters::sort()
 245 {
 246         std::sort(converterlist_.begin(), converterlist_.end());
 247 }
 248
 249
 250 OutputParams::FLAVOR Converters::getFlavor(Graph::EdgePath const & path)
 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 (contains(conv.to, "pdf"))
 257                                 return OutputParams::PDFLATEX;
 258                 if (conv.xml)
 259                         return OutputParams::XML;
 260         }
 261         return OutputParams::LATEX;
 262 }
 263
 264
 265 bool Converters::convert(Buffer const * buffer,
 266                          FileName const & from_file, FileName const & to_file,
 267                          FileName const & orig_from,
 268                          string const & from_format, string const & to_format,
 269                          ErrorList & errorList, int conversionflags)
 270 {
 271         if (from_format == to_format)
 272                 return move(from_format, from_file, to_file, false);
 273
 274         if ((conversionflags & try_cache) &&
 275             ConverterCache::get().inCache(orig_from, to_format))
 276                 return ConverterCache::get().copy(orig_from, to_format, to_file);
 277
 278         Graph::EdgePath edgepath = getPath(from_format, to_format);
 279         if (edgepath.empty()) {
 280                 if (conversionflags & try_default) {
 281                         // if no special converter defined, then we take the
 282                         // default one from ImageMagic.
 283                         string const from_ext = from_format.empty() ?
 284                                 getExtension(from_file.absFilename()) :
 285                                 formats.extension(from_format);
 286                         string const to_ext = formats.extension(to_format);
 287                         string const command =
 288                                 os::python() + ' ' +
 289                                 quoteName(libFileSearch("scripts", "convertDefault.py").toFilesystemEncoding()) +
 290                                 ' ' +
 291                                 quoteName(from_ext + ':' + from_file.toFilesystemEncoding()) +
 292                                 ' ' +
 293                                 quoteName(to_ext + ':' + to_file.toFilesystemEncoding());
 294                         LYXERR(Debug::FILES, "No converter defined! "
 295                                    "I use convertDefault.py:\n\t" << command);
 296                         Systemcall one;
 297                         one.startscript(Systemcall::Wait, command);
 298                         if (to_file.isReadableFile()) {
 299                                 if (conversionflags & try_cache)
 300                                         ConverterCache::get().add(orig_from,
 301                                                         to_format, to_file);
 302                                 return true;
 303                         }
 304                 }
 305
 306                 // only warn once per session and per file type
 307                 static std::map<string, string> warned;
 308                 if (warned.find(from_format) != warned.end() && warned.find(from_format)->second == to_format) {
 309                         return false;
 310                 }
 311                 warned.insert(make_pair(from_format, to_format));
 312
 313                 Alert::error(_("Cannot convert file"),
 314                              bformat(_("No information for converting %1$s "
 315                                                     "format files to %2$s.\n"
 316                                                     "Define a converter in the preferences."),
 317                                                         from_ascii(from_format), from_ascii(to_format)));
 318                 return false;
 319         }
 320
 321         // buffer is only invalid for importing, and then runparams is not
 322         // used anyway.
 323         OutputParams runparams(buffer ? &buffer->params().encoding() : 0);
 324         runparams.flavor = getFlavor(edgepath);
 325
 326         // Some converters (e.g. lilypond) can only output files to the
 327         // current directory, so we need to change the current directory.
 328         // This has the added benefit that all other files that may be
 329         // generated by the converter are deleted when LyX closes and do not
 330         // clutter the real working directory.
 331         string const path(onlyPath(from_file.absFilename()));
 332         // Prevent the compiler from optimizing away p
 333         FileName pp(path);
 334         PathChanger p(pp);
 335
 336         // empty the error list before any new conversion takes place.
 337         errorList.clear();
 338
 339         bool run_latex = false;
 340         string from_base = changeExtension(from_file.absFilename(), "");
 341         string to_base = changeExtension(to_file.absFilename(), "");
 342         FileName infile;
 343         FileName outfile = from_file;
 344         for (Graph::EdgePath::const_iterator cit = edgepath.begin();
 345              cit != edgepath.end(); ++cit) {
 346                 Converter const & conv = converterlist_[*cit];
 347                 bool dummy = conv.To->dummy() && conv.to != "program";
 348                 if (!dummy) {
 349                         LYXERR(Debug::FILES, "Converting from  "
 350                                << conv.from << " to " << conv.to);
 351                 }
 352                 infile = outfile;
 353                 outfile = FileName(conv.result_dir.empty()
 354                         ? changeExtension(from_file.absFilename(), conv.To->extension())
 355                         : addName(subst(conv.result_dir,
 356                                         token_base, from_base),
 357                                   subst(conv.result_file,
 358                                         token_base, onlyFilename(from_base))));
 359
 360                 // if input and output files are equal, we use a
 361                 // temporary file as intermediary (JMarc)
 362                 FileName real_outfile;
 363                 if (outfile == infile) {
 364                         real_outfile = infile;
 365                         // when importing, a buffer does not necessarily exist
 366                         if (buffer)
 367                                 outfile = FileName(addName(buffer->temppath(), "tmpfile.out"));
 368                         else
 369                                 outfile = FileName(addName(package().temp_dir().absFilename(),
 370                                                    "tmpfile.out"));
 371                 }
 372
 373                 if (conv.latex) {
 374                         run_latex = true;
 375                         string const command = subst(conv.command, token_from, "");
 376                         LYXERR(Debug::FILES, "Running " << command);
 377                         if (!runLaTeX(*buffer, command, runparams, errorList))
 378                                 return false;
 379                 } else {
 380                         if (conv.need_aux && !run_latex
 381                             && !latex_command_.empty()) {
 382                                 LYXERR(Debug::FILES, "Running " << latex_command_
 383                                         << " to update aux file");
 384                                 runLaTeX(*buffer, latex_command_, runparams, errorList);
 385                         }
 386
 387                         // FIXME UNICODE
 388                         string const infile2 =
 389                                 to_utf8(makeRelPath(from_utf8(infile.absFilename()), from_utf8(path)));
 390                         string const outfile2 =
 391                                 to_utf8(makeRelPath(from_utf8(outfile.absFilename()), from_utf8(path)));
 392
 393                         string command = conv.command;
 394                         command = subst(command, token_from, quoteName(infile2));
 395                         command = subst(command, token_base, quoteName(from_base));
 396                         command = subst(command, token_to, quoteName(outfile2));
 397                         command = libScriptSearch(command);
 398
 399                         if (!conv.parselog.empty())
 400                                 command += " 2> " + quoteName(infile2 + ".out");
 401
 402                         if (conv.from == "dvi" && conv.to == "ps")
 403                                 command = add_options(command,
 404                                                       buffer->params().dvips_options());
 405                         else if (conv.from == "dvi" && prefixIs(conv.to, "pdf"))
 406                                 command = add_options(command,
 407                                                       dvipdfm_options(buffer->params()));
 408
 409                         LYXERR(Debug::FILES, "Calling " << command);
 410                         if (buffer)
 411                                 buffer->message(_("Executing command: ")
 412                                 + from_utf8(command));
 413
 414                         Systemcall one;
 415                         int res;
 416                         if (dummy) {
 417                                 res = one.startscript(Systemcall::DontWait,
 418                                         to_filesystem8bit(from_utf8(command)));
 419                                 // We're not waiting for the result, so we can't do anything
 420                                 // else here.
 421                         } else {
 422                                 res = one.startscript(Systemcall::Wait,
 423                                                 to_filesystem8bit(from_utf8(command)));
 424                                 if (!real_outfile.empty()) {
 425                                         Mover const & mover = getMover(conv.to);
 426                                         if (!mover.rename(outfile, real_outfile))
 427                                                 res = -1;
 428                                         else
 429                                                 LYXERR(Debug::FILES, "renaming file " << outfile
 430                                                         << " to " << real_outfile);
 431                                         // Finally, don't forget to tell any future
 432                                         // converters to use the renamed file...
 433                                         outfile = real_outfile;
 434                                 }
 435
 436                                 if (!conv.parselog.empty()) {
 437                                         string const logfile =  infile2 + ".log";
 438                                         string const script = libScriptSearch(conv.parselog);
 439                                         string const command2 = script +
 440                                                 " < " + quoteName(infile2 + ".out") +
 441                                                 " > " + quoteName(logfile);
 442                                         one.startscript(Systemcall::Wait,
 443                                                 to_filesystem8bit(from_utf8(command2)));
 444                                         if (!scanLog(*buffer, command, makeAbsPath(logfile, path), errorList))
 445                                                 return false;
 446                                 }
 447                         }
 448
 449                         if (res) {
 450                                 if (conv.to == "program") {
 451                                         Alert::error(_("Build errors"),
 452                                                 _("There were errors during the build process."));
 453                                 } else {
 454 // FIXME: this should go out of here. For example, here we cannot say if
 455 // it is a document (.lyx) or something else. Same goes for elsewhere.
 456                                         Alert::error(_("Cannot convert file"),
 457                                                 bformat(_("An error occurred whilst running %1$s"),
 458                                                 from_utf8(command.substr(0, 50))));
 459                                 }
 460                                 return false;
 461                         }
 462                 }
 463         }
 464
 465         Converter const & conv = converterlist_[edgepath.back()];
 466         if (conv.To->dummy())
 467                 return true;
 468
 469         if (!conv.result_dir.empty()) {
 470                 // The converter has put the file(s) in a directory.
 471                 // In this case we ignore the given to_file.
 472                 if (from_base != to_base) {
 473                         string const from = subst(conv.result_dir,
 474                                             token_base, from_base);
 475                         string const to = subst(conv.result_dir,
 476                                           token_base, to_base);
 477                         Mover const & mover = getMover(conv.from);
 478                         if (!mover.rename(FileName(from), FileName(to))) {
 479                                 Alert::error(_("Cannot convert file"),
 480                                         bformat(_("Could not move a temporary directory from %1$s to %2$s."),
 481                                                 from_utf8(from), from_utf8(to)));
 482                                 return false;
 483                         }
 484                 }
 485                 return true;
 486         } else {
 487                 if (conversionflags & try_cache)
 488                         ConverterCache::get().add(orig_from, to_format, outfile);
 489                 return move(conv.to, outfile, to_file, conv.latex);
 490         }
 491 }
 492
 493
 494 bool Converters::move(string const & fmt,
 495                       FileName const & from, FileName const & to, bool copy)
 496 {
 497         if (from == to)
 498                 return true;
 499
 500         bool no_errors = true;
 501         string const path = onlyPath(from.absFilename());
 502         string const base = onlyFilename(removeExtension(from.absFilename()));
 503         string const to_base = removeExtension(to.absFilename());
 504         string const to_extension = getExtension(to.absFilename());
 505
 506         support::FileNameList const files = FileName(path).dirList(getExtension(from.absFilename()));
 507         for (support::FileNameList::const_iterator it = files.begin();
 508              it != files.end(); ++it) {
 509                 string const from2 = it->absFilename();
 510                 string const file2 = onlyFilename(from2);
 511                 if (prefixIs(file2, base)) {
 512                         string const to2 = changeExtension(
 513                                 to_base + file2.substr(base.length()),
 514                                 to_extension);
 515                         LYXERR(Debug::FILES, "moving " << from2 << " to " << to2);
 516
 517                         Mover const & mover = getMover(fmt);
 518                         bool const moved = copy
 519                                 ? mover.copy(*it, FileName(to2))
 520                                 : mover.rename(*it, FileName(to2));
 521                         if (!moved && no_errors) {
 522                                 Alert::error(_("Cannot convert file"),
 523                                         bformat(copy ?
 524                                                 _("Could not copy a temporary file from %1$s to %2$s.") :
 525                                                 _("Could not move a temporary file from %1$s to %2$s."),
 526                                                 from_utf8(from2), from_utf8(to2)));
 527                                 no_errors = false;
 528                         }
 529                 }
 530         }
 531         return no_errors;
 532 }
 533
 534
 535 bool Converters::formatIsUsed(string const & format)
 536 {
 537         ConverterList::const_iterator cit = converterlist_.begin();
 538         ConverterList::const_iterator end = converterlist_.end();
 539         for (; cit != end; ++cit) {
 540                 if (cit->from == format || cit->to == format)
 541                         return true;
 542         }
 543         return false;
 544 }
 545
 546
 547 bool Converters::scanLog(Buffer const & buffer, string const & /*command*/,
 548                          FileName const & filename, ErrorList & errorList)
 549 {
 550         OutputParams runparams(0);
 551         runparams.flavor = OutputParams::LATEX;
 552         LaTeX latex("", runparams, filename);
 553         TeXErrors terr;
 554         int const result = latex.scanLogFile(terr);
 555
 556         if (result & LaTeX::ERRORS)
 557                 buffer.bufferErrors(terr, errorList);
 558
 559         return true;
 560 }
 561
 562
 563 namespace {
 564
 565 class ShowMessage
 566         : public boost::signals::trackable {
 567 public:
 568         ShowMessage(Buffer const & b) : buffer_(b) {}
 569         void operator()(docstring const & msg) const { buffer_.message(msg); }
 570 private:
 571         Buffer const & buffer_;
 572 };
 573
 574 }
 575
 576
 577 bool Converters::runLaTeX(Buffer const & buffer, string const & command,
 578                           OutputParams const & runparams, ErrorList & errorList)
 579 {
 580         buffer.setBusy(true);
 581         buffer.message(_("Running LaTeX..."));
 582
 583         runparams.document_language = buffer.params().language->babel();
 584
 585         // do the LaTeX run(s)
 586         string const name = buffer.latexName();
 587         LaTeX latex(command, runparams, FileName(makeAbsPath(name)));
 588         TeXErrors terr;
 589         ShowMessage show(buffer);
 590         latex.message.connect(show);
 591         int const result = latex.run(terr);
 592
 593         if (result & LaTeX::ERRORS)
 594                 buffer.bufferErrors(terr, errorList);
 595
 596         // check return value from latex.run().
 597         if ((result & LaTeX::NO_LOGFILE)) {
 598                 docstring const str =
 599                         bformat(_("LaTeX did not run successfully. "
 600                                                "Additionally, LyX could not locate "
 601                                                "the LaTeX log %1$s."), from_utf8(name));
 602                 Alert::error(_("LaTeX failed"), str);
 603         } else if (result & LaTeX::NO_OUTPUT) {
 604                 Alert::warning(_("Output is empty"),
 605                                _("An empty output file was generated."));
 606         }
 607
 608
 609         buffer.setBusy(false);
 610
 611         int const ERROR_MASK =
 612                         LaTeX::NO_LOGFILE |
 613                         LaTeX::ERRORS |
 614                         LaTeX::NO_OUTPUT;
 615
 616         return (result & ERROR_MASK) == 0;
 617
 618 }
 619
 620
 621
 622 void Converters::buildGraph()
 623 {
 624         G_.init(formats.size());
 625         ConverterList::iterator beg = converterlist_.begin();
 626         ConverterList::iterator const end = converterlist_.end();
 627         for (ConverterList::iterator it = beg; it != end ; ++it) {
 628                 int const s = formats.getNumber(it->from);
 629                 int const t = formats.getNumber(it->to);
 630                 G_.addEdge(s,t);
 631         }
 632 }
 633
 634
 635 vector<Format const *> const
 636 Converters::intToFormat(vector<int> const & input)
 637 {
 638         vector<Format const *> result(input.size());
 639
 640         vector<int>::const_iterator it = input.begin();
 641         vector<int>::const_iterator const end = input.end();
 642         vector<Format const *>::iterator rit = result.begin();
 643         for ( ; it != end; ++it, ++rit) {
 644                 *rit = &formats.get(*it);
 645         }
 646         return result;
 647 }
 648
 649
 650 vector<Format const *> const
 651 Converters::getReachableTo(string const & target, bool const clear_visited)
 652 {
 653         vector<int> const & reachablesto =
 654                 G_.getReachableTo(formats.getNumber(target), clear_visited);
 655
 656         return intToFormat(reachablesto);
 657 }
 658
 659
 660 vector<Format const *> const
 661 Converters::getReachable(string const & from, bool const only_viewable,
 662                          bool const clear_visited)
 663 {
 664         vector<int> const & reachables =
 665                 G_.getReachable(formats.getNumber(from),
 666                                 only_viewable,
 667                                 clear_visited);
 668
 669         return intToFormat(reachables);
 670 }
 671
 672
 673 bool Converters::isReachable(string const & from, string const & to)
 674 {
 675         return G_.isReachable(formats.getNumber(from),
 676                               formats.getNumber(to));
 677 }
 678
 679
 680 Graph::EdgePath Converters::getPath(string const & from, string const & to)
 681 {
 682         return G_.getPath(formats.getNumber(from),
 683                           formats.getNumber(to));
 684 }
 685
 686
 687 vector<Format const *> Converters::importableFormats()
 688 {
 689         vector<string> l = loaders();
 690         vector<Format const *> result = getReachableTo(l[0], true);
 691         for (vector<string>::const_iterator it = l.begin() + 1;
 692              it != l.end(); ++it) {
 693                 vector<Format const *> r = getReachableTo(*it, false);
 694                 result.insert(result.end(), r.begin(), r.end());
 695         }
 696         return result;
 697 }
 698
 699
 700 vector<string> Converters::loaders() const
 701 {
 702         vector<string> v;
 703         v.push_back("lyx");
 704         v.push_back("text");
 705         v.push_back("textparagraph");
 706         return v;
 707 }
 708
 709
 710 } // namespace lyx