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