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 "LyXRC.h"
  25 #include "Mover.h"
  26 #include "Session.h"
  27
  28 #include "frontends/alert.h"
  29
  30 #include "support/debug.h"
  31 #include "support/FileNameList.h"
  32 #include "support/filetools.h"
  33 #include "support/gettext.h"
  34 #include "support/lassert.h"
  35 #include "support/lstrings.h"
  36 #include "support/os.h"
  37 #include "support/Package.h"
  38 #include "support/PathChanger.h"
  39 #include "support/Systemcall.h"
  40
  41 using namespace std;
  42 using namespace lyx::support;
  43
  44 namespace lyx {
  45
  46 namespace Alert = lyx::frontend::Alert;
  47
  48
  49 namespace {
  50
  51 string const token_from("$$i");
  52 string const token_base("$$b");
  53 string const token_to("$$o");
  54 string const token_path("$$p");
  55 string const token_orig_path("$$r");
  56 string const token_orig_from("$$f");
  57 string const token_encoding("$$e");
  58 string const token_latex_encoding("$$E");
  59
  60
  61 string const add_options(string const & command, string const & options)
  62 {
  63         string head;
  64         string const tail = split(command, head, ' ');
  65         return head + ' ' + options + ' ' + tail;
  66 }
  67
  68
  69 string const dvipdfm_options(BufferParams const & bp)
  70 {
  71         string result;
  72
  73         if (bp.papersize != PAPER_CUSTOM) {
  74                 string const paper_size = bp.paperSizeName(BufferParams::DVIPDFM);
  75                 if (!paper_size.empty())
  76                         result = "-p "+ paper_size;
  77
  78                 if (bp.orientation == ORIENTATION_LANDSCAPE)
  79                         result += " -l";
  80         }
  81
  82         return result;
  83 }
  84
  85
  86 class ConverterEqual {
  87 public:
  88         ConverterEqual(string const & from, string const & to)
  89                 : from_(from), to_(to) {}
  90         bool operator()(Converter const & c) const {
  91                 return c.from() == from_ && c.to() == to_;
  92         }
  93 private:
  94         string const from_;
  95         string const to_;
  96 };
  97
  98 } // namespace anon
  99
 100
 101 Converter::Converter(string const & f, string const & t,
 102                      string const & c, string const & l)
 103         : from_(f), to_(t), command_(c), flags_(l),
 104           From_(0), To_(0), latex_(false), xml_(false),
 105           need_aux_(false), nice_(false), need_auth_(false)
 106 {}
 107
 108
 109 void Converter::readFlags()
 110 {
 111         string flag_list(flags_);
 112         while (!flag_list.empty()) {
 113                 string flag_name, flag_value;
 114                 flag_list = split(flag_list, flag_value, ',');
 115                 flag_value = split(flag_value, flag_name, '=');
 116                 if (flag_name == "latex") {
 117                         latex_ = true;
 118                         latex_flavor_ = flag_value.empty() ?
 119                                 "latex" : flag_value;
 120                 } else if (flag_name == "xml")
 121                         xml_ = true;
 122                 else if (flag_name == "needaux")
 123                         need_aux_ = true;
 124                 else if (flag_name == "resultdir")
 125                         result_dir_ = (flag_value.empty())
 126                                 ? token_base : flag_value;
 127                 else if (flag_name == "resultfile")
 128                         result_file_ = flag_value;
 129                 else if (flag_name == "parselog")
 130                         parselog_ = flag_value;
 131                 else if (flag_name == "nice")
 132                         nice_ = true;
 133                 else if (flag_name == "needauth")
 134                         need_auth_ = true;
 135         }
 136         if (!result_dir_.empty() && result_file_.empty())
 137                 result_file_ = "index." + theFormats().extension(to_);
 138         //if (!contains(command, token_from))
 139         //      latex = true;
 140 }
 141
 142
 143 Converter const * Converters::getConverter(string const & from,
 144                                             string const & to) const
 145 {
 146         ConverterList::const_iterator const cit =
 147                 find_if(converterlist_.begin(), converterlist_.end(),
 148                         ConverterEqual(from, to));
 149         if (cit != converterlist_.end())
 150                 return &(*cit);
 151         else
 152                 return 0;
 153 }
 154
 155
 156 int Converters::getNumber(string const & from, string const & to) const
 157 {
 158         ConverterList::const_iterator const cit =
 159                 find_if(converterlist_.begin(), converterlist_.end(),
 160                         ConverterEqual(from, to));
 161         if (cit != converterlist_.end())
 162                 return distance(converterlist_.begin(), cit);
 163         else
 164                 return -1;
 165 }
 166
 167
 168 void Converters::add(string const & from, string const & to,
 169                      string const & command, string const & flags)
 170 {
 171         theFormats().add(from);
 172         theFormats().add(to);
 173         ConverterList::iterator it = find_if(converterlist_.begin(),
 174                                              converterlist_.end(),
 175                                              ConverterEqual(from , to));
 176
 177         Converter converter(from, to, command, flags);
 178         if (it != converterlist_.end() && !flags.empty() && flags[0] == '*') {
 179                 converter = *it;
 180                 converter.setCommand(command);
 181                 converter.setFlags(flags);
 182         }
 183         converter.readFlags();
 184
 185         // The latex_command is used to update the .aux file when running
 186         // a converter that uses it.
 187         if (converter.latex()) {
 188                 if (latex_command_.empty() ||
 189                     converter.latex_flavor() == "latex")
 190                         latex_command_ = subst(command, token_from, "");
 191                 if (dvilualatex_command_.empty() ||
 192                     converter.latex_flavor() == "dvilualatex")
 193                         dvilualatex_command_ = subst(command, token_from, "");
 194                 if (lualatex_command_.empty() ||
 195                     converter.latex_flavor() == "lualatex")
 196                         lualatex_command_ = subst(command, token_from, "");
 197                 if (pdflatex_command_.empty() ||
 198                     converter.latex_flavor() == "pdflatex")
 199                         pdflatex_command_ = subst(command, token_from, "");
 200                 if (xelatex_command_.empty() ||
 201                     converter.latex_flavor() == "xelatex")
 202                         xelatex_command_ = subst(command, token_from, "");
 203         }
 204
 205         if (it == converterlist_.end()) {
 206                 converterlist_.push_back(converter);
 207         } else {
 208                 converter.setFrom(it->From());
 209                 converter.setTo(it->To());
 210                 *it = converter;
 211         }
 212 }
 213
 214
 215 void Converters::erase(string const & from, string const & to)
 216 {
 217         ConverterList::iterator const it =
 218                 find_if(converterlist_.begin(),
 219                         converterlist_.end(),
 220                         ConverterEqual(from, to));
 221         if (it != converterlist_.end())
 222                 converterlist_.erase(it);
 223 }
 224
 225
 226 // This method updates the pointers From and To in all the converters.
 227 // The code is not very efficient, but it doesn't matter as the number
 228 // of formats and converters is small.
 229 // Furthermore, this method is called only on startup, or after
 230 // adding/deleting a format in FormPreferences (the latter calls can be
 231 // eliminated if the formats in the Formats class are stored using a map or
 232 // a list (instead of a vector), but this will cause other problems).
 233 void Converters::update(Formats const & formats)
 234 {
 235         ConverterList::iterator it = converterlist_.begin();
 236         ConverterList::iterator end = converterlist_.end();
 237         for (; it != end; ++it) {
 238                 it->setFrom(formats.getFormat(it->from()));
 239                 it->setTo(formats.getFormat(it->to()));
 240         }
 241 }
 242
 243
 244 // This method updates the pointers From and To in the last converter.
 245 // It is called when adding a new converter in FormPreferences
 246 void Converters::updateLast(Formats const & formats)
 247 {
 248         if (converterlist_.begin() != converterlist_.end()) {
 249                 ConverterList::iterator it = converterlist_.end() - 1;
 250                 it->setFrom(formats.getFormat(it->from()));
 251                 it->setTo(formats.getFormat(it->to()));
 252         }
 253 }
 254
 255
 256 OutputParams::FLAVOR Converters::getFlavor(Graph::EdgePath const & path,
 257                                            Buffer const * buffer)
 258 {
 259         for (Graph::EdgePath::const_iterator cit = path.begin();
 260              cit != path.end(); ++cit) {
 261                 Converter const & conv = converterlist_[*cit];
 262                 if (conv.latex()) {
 263                         if (conv.latex_flavor() == "latex")
 264                                 return OutputParams::LATEX;
 265                         if (conv.latex_flavor() == "xelatex")
 266                                 return OutputParams::XETEX;
 267                         if (conv.latex_flavor() == "lualatex")
 268                                 return OutputParams::LUATEX;
 269                         if (conv.latex_flavor() == "dvilualatex")
 270                                 return OutputParams::DVILUATEX;
 271                         if (conv.latex_flavor() == "pdflatex")
 272                                 return OutputParams::PDFLATEX;
 273                 }
 274                 if (conv.xml())
 275                         return OutputParams::XML;
 276         }
 277         return buffer ? buffer->params().getOutputFlavor()
 278                       : OutputParams::LATEX;
 279 }
 280
 281
 282 bool Converters::checkAuth(Converter const & conv, string const & doc_fname)
 283 {
 284         if (!conv.need_auth())
 285                 return true;
 286         const docstring security_warning = bformat(
 287               _("<p>The requested operation requires the use of a converter from "
 288                 "%2$s to %3$s:</p>"
 289                 "<blockquote><p><tt>%1$s</tt></p></blockquote>"
 290                 "<p>This external program can execute arbitrary commands on your "
 291                 "system, including dangerous ones, if instructed to do so by a "
 292                 "maliciously crafted .lyx document.</p>"),
 293               from_utf8(conv.command()), from_utf8(conv.from()),
 294               from_utf8(conv.to()));
 295         if (lyxrc.use_converter_needauth_forbidden) {
 296                 frontend::Alert::error(
 297                     _("An external converter is disabled for security reasons"),
 298                     security_warning + _(
 299                     "<p><b>Your current preference settings forbid its execution.</b></p>"
 300                     "<p>(To change this setting, go to <i>Preferences &#x25b9; File "
 301                     "Handling &#x25b9; Converters</i> and uncheck <i>Security &#x25b9; "
 302                     "Forbid needauth converters</i>.)"), false);
 303                 return false;
 304         }
 305         if (!lyxrc.use_converter_needauth)
 306                 return true;
 307         static const docstring security_title =
 308                 _("An external converter requires your authorization");
 309         int choice;
 310         const docstring security_warning2 = security_warning +
 311                 _("<p>Would you like to run this converter?</p>"
 312                   "<p><b>Only run if you trust the origin/sender of the LyX "
 313                   "document!</b></p>");
 314         if (!doc_fname.empty()) {
 315                 LYXERR(Debug::FILES, "looking up: " << doc_fname);
 316                 std::set<std::string> & auth_files = theSession().authFiles().authFiles();
 317                 if (auth_files.find(doc_fname) == auth_files.end()) {
 318                         choice = frontend::Alert::prompt(security_title, security_warning2,
 319                                 0, 0, _("Do &not run"), _("&Run"), _("&Always run for this document"));
 320                         if (choice == 2)
 321                                 auth_files.insert(doc_fname);
 322                 } else {
 323                         choice = 1;
 324                 }
 325         } else {
 326                 choice = frontend::Alert::prompt(security_title, security_warning2,
 327                         0, 0, _("Do &not run"), _("&Run"));
 328         }
 329         return choice != 0;
 330 }
 331
 332
 333 bool Converters::convert(Buffer const * buffer,
 334                          FileName const & from_file, FileName const & to_file,
 335                          FileName const & orig_from,
 336                          string const & from_format, string const & to_format,
 337                          ErrorList & errorList, int conversionflags)
 338 {
 339         if (from_format == to_format)
 340                 return move(from_format, from_file, to_file, false);
 341
 342         if ((conversionflags & try_cache) &&
 343             ConverterCache::get().inCache(orig_from, to_format))
 344                 return ConverterCache::get().copy(orig_from, to_format, to_file);
 345
 346         Graph::EdgePath edgepath = getPath(from_format, to_format);
 347         if (edgepath.empty()) {
 348                 if (conversionflags & try_default) {
 349                         // if no special converter defined, then we take the
 350                         // default one from ImageMagic.
 351                         string const from_ext = from_format.empty() ?
 352                                 getExtension(from_file.absFileName()) :
 353                                 theFormats().extension(from_format);
 354                         string const to_ext = theFormats().extension(to_format);
 355                         string const command =
 356                                 os::python() + ' ' +
 357                                 quoteName(libFileSearch("scripts", "convertDefault.py").toFilesystemEncoding()) +
 358                                 ' ' + from_ext + ' ' +
 359                                 quoteName(from_file.toFilesystemEncoding()) +
 360                                 ' ' + to_ext + ' ' +
 361                                 quoteName(to_file.toFilesystemEncoding());
 362                         LYXERR(Debug::FILES, "No converter defined! "
 363                                    "I use convertDefault.py:\n\t" << command);
 364                         Systemcall one;
 365                         one.startscript(Systemcall::Wait, command,
 366                                         buffer ? buffer->filePath() : string(),
 367                                         buffer ? buffer->layoutPos() : string());
 368                         if (to_file.isReadableFile()) {
 369                                 if (conversionflags & try_cache)
 370                                         ConverterCache::get().add(orig_from,
 371                                                         to_format, to_file);
 372                                 return true;
 373                         }
 374                 }
 375
 376                 // only warn once per session and per file type
 377                 static std::map<string, string> warned;
 378                 if (warned.find(from_format) != warned.end() && warned.find(from_format)->second == to_format) {
 379                         return false;
 380                 }
 381                 warned.insert(make_pair(from_format, to_format));
 382
 383                 Alert::error(_("Cannot convert file"),
 384                              bformat(_("No information for converting %1$s "
 385                                                     "format files to %2$s.\n"
 386                                                     "Define a converter in the preferences."),
 387                                                         from_ascii(from_format), from_ascii(to_format)));
 388                 return false;
 389         }
 390
 391         // buffer is only invalid for importing, and then runparams is not
 392         // used anyway.
 393         OutputParams runparams(buffer ? &buffer->params().encoding() : 0);
 394         runparams.flavor = getFlavor(edgepath, buffer);
 395
 396         if (buffer) {
 397                 runparams.use_japanese =
 398                         buffer->params().bufferFormat() == "latex"
 399                         && buffer->params().encoding().package() == Encoding::japanese;
 400                 runparams.use_indices = buffer->params().use_indices;
 401                 runparams.bibtex_command = buffer->params().bibtexCommand();
 402                 runparams.index_command = (buffer->params().index_command == "default") ?
 403                         string() : buffer->params().index_command;
 404                 runparams.document_language = buffer->params().language->babel();
 405                 runparams.only_childbibs = !buffer->params().useBiblatex()
 406                                 && !buffer->params().useBibtopic()
 407                                 && buffer->params().multibib == "child";
 408         }
 409
 410         // Some converters (e.g. lilypond) can only output files to the
 411         // current directory, so we need to change the current directory.
 412         // This has the added benefit that all other files that may be
 413         // generated by the converter are deleted when LyX closes and do not
 414         // clutter the real working directory.
 415         // FIXME: This does not work if path is an UNC path on windows
 416         //        (bug 6127).
 417         string const path(onlyPath(from_file.absFileName()));
 418         // Prevent the compiler from optimizing away p
 419         FileName pp(path);
 420         PathChanger p(pp);
 421
 422         // empty the error list before any new conversion takes place.
 423         errorList.clear();
 424
 425         bool run_latex = false;
 426         string from_base = changeExtension(from_file.absFileName(), "");
 427         string to_base = changeExtension(to_file.absFileName(), "");
 428         FileName infile;
 429         FileName outfile = from_file;
 430         for (Graph::EdgePath::const_iterator cit = edgepath.begin();
 431              cit != edgepath.end(); ++cit) {
 432                 Converter const & conv = converterlist_[*cit];
 433                 bool dummy = conv.To()->dummy() && conv.to() != "program";
 434                 if (!dummy) {
 435                         LYXERR(Debug::FILES, "Converting from  "
 436                                << conv.from() << " to " << conv.to());
 437                 }
 438                 infile = outfile;
 439                 outfile = FileName(conv.result_file().empty()
 440                         ? changeExtension(from_file.absFileName(), conv.To()->extension())
 441                         : addName(subst(conv.result_dir(),
 442                                         token_base, from_base),
 443                                   subst(conv.result_file(),
 444                                         token_base, onlyFileName(from_base))));
 445
 446                 // if input and output files are equal, we use a
 447                 // temporary file as intermediary (JMarc)
 448                 FileName real_outfile;
 449                 if (!conv.result_file().empty())
 450                         real_outfile = FileName(changeExtension(from_file.absFileName(),
 451                                 conv.To()->extension()));
 452                 if (outfile == infile) {
 453                         real_outfile = infile;
 454                         // when importing, a buffer does not necessarily exist
 455                         if (buffer)
 456                                 outfile = FileName(addName(buffer->temppath(), "tmpfile.out"));
 457                         else
 458                                 outfile = FileName(addName(package().temp_dir().absFileName(),
 459                                                    "tmpfile.out"));
 460                 }
 461
 462                 if (!checkAuth(conv, buffer ? buffer->absFileName() : string()))
 463                         return false;
 464
 465                 if (conv.latex()) {
 466                         // We are not importing, we have a buffer
 467                         LATTEST(buffer);
 468                         run_latex = true;
 469                         string command = conv.command();
 470                         command = subst(command, token_from, "");
 471                         command = subst(command, token_latex_encoding,
 472                                         buffer->params().encoding().latexName());
 473                         LYXERR(Debug::FILES, "Running " << command);
 474                         if (!runLaTeX(*buffer, command, runparams, errorList))
 475                                 return false;
 476                 } else {
 477                         if (conv.need_aux() && !run_latex) {
 478                                 // We are not importing, we have a buffer
 479                                 LATTEST(buffer);
 480                                 string command;
 481                                 switch (runparams.flavor) {
 482                                 case OutputParams::DVILUATEX:
 483                                         command = dvilualatex_command_;
 484                                         break;
 485                                 case OutputParams::LUATEX:
 486                                         command = lualatex_command_;
 487                                         break;
 488                                 case OutputParams::PDFLATEX:
 489                                         command = pdflatex_command_;
 490                                         break;
 491                                 case OutputParams::XETEX:
 492                                         command = xelatex_command_;
 493                                         break;
 494                                 default:
 495                                         command = latex_command_;
 496                                         break;
 497                                 }
 498                                 if (!command.empty()) {
 499                                         LYXERR(Debug::FILES, "Running "
 500                                                 << command
 501                                                 << " to update aux file");
 502                                         if (!runLaTeX(*buffer, command,
 503                                                       runparams, errorList))
 504                                                 return false;
 505                                 }
 506                         }
 507
 508                         // FIXME UNICODE
 509                         string const infile2 =
 510                                 to_utf8(makeRelPath(from_utf8(infile.absFileName()), from_utf8(path)));
 511                         string const outfile2 =
 512                                 to_utf8(makeRelPath(from_utf8(outfile.absFileName()), from_utf8(path)));
 513
 514                         string command = conv.command();
 515                         command = subst(command, token_from, quoteName(infile2));
 516                         command = subst(command, token_base, quoteName(from_base));
 517                         command = subst(command, token_to, quoteName(outfile2));
 518                         command = subst(command, token_path, quoteName(onlyPath(infile.absFileName())));
 519                         command = subst(command, token_orig_path, quoteName(onlyPath(orig_from.absFileName())));
 520                         command = subst(command, token_orig_from, quoteName(onlyFileName(orig_from.absFileName())));
 521                         command = subst(command, token_encoding, buffer ? buffer->params().encoding().iconvName() : string());
 522
 523                         if (!conv.parselog().empty())
 524                                 command += " 2> " + quoteName(infile2 + ".out");
 525
 526                         // it is not actually not necessary to test for buffer here,
 527                         // but it pleases coverity.
 528                         if (buffer && conv.from() == "dvi" && conv.to() == "ps")
 529                                 command = add_options(command,
 530                                                       buffer->params().dvips_options());
 531                         else if (buffer && conv.from() == "dvi" && prefixIs(conv.to(), "pdf"))
 532                                 command = add_options(command,
 533                                                       dvipdfm_options(buffer->params()));
 534
 535                         LYXERR(Debug::FILES, "Calling " << command);
 536                         if (buffer)
 537                                 buffer->message(_("Executing command: ")
 538                                 + from_utf8(command));
 539
 540                         Systemcall one;
 541                         int res;
 542                         if (dummy) {
 543                                 res = one.startscript(Systemcall::DontWait,
 544                                         to_filesystem8bit(from_utf8(command)),
 545                                         buffer ? buffer->filePath() : string(),
 546                                         buffer ? buffer->layoutPos() : string());
 547                                 // We're not waiting for the result, so we can't do anything
 548                                 // else here.
 549                         } else {
 550                                 res = one.startscript(Systemcall::Wait,
 551                                                 to_filesystem8bit(from_utf8(command)),
 552                                                 buffer ? buffer->filePath()
 553                                                        : string(),
 554                                                 buffer ? buffer->layoutPos()
 555                                                        : string());
 556                                 if (!real_outfile.empty()) {
 557                                         Mover const & mover = getMover(conv.to());
 558                                         if (!mover.rename(outfile, real_outfile))
 559                                                 res = -1;
 560                                         else
 561                                                 LYXERR(Debug::FILES, "renaming file " << outfile
 562                                                         << " to " << real_outfile);
 563                                         // Finally, don't forget to tell any future
 564                                         // converters to use the renamed file...
 565                                         outfile = real_outfile;
 566                                 }
 567
 568                                 if (!conv.parselog().empty()) {
 569                                         string const logfile =  infile2 + ".log";
 570                                         string const command2 = conv.parselog() +
 571                                                 " < " + quoteName(infile2 + ".out") +
 572                                                 " > " + quoteName(logfile);
 573                                         one.startscript(Systemcall::Wait,
 574                                                 to_filesystem8bit(from_utf8(command2)),
 575                                                 buffer->filePath(),
 576                                                 buffer->layoutPos());
 577                                         if (!scanLog(*buffer, command, makeAbsPath(logfile, path), errorList))
 578                                                 return false;
 579                                 }
 580                         }
 581
 582                         if (res) {
 583                                 if (conv.to() == "program") {
 584                                         Alert::error(_("Build errors"),
 585                                                 _("There were errors during the build process."));
 586                                 } else {
 587 // FIXME: this should go out of here. For example, here we cannot say if
 588 // it is a document (.lyx) or something else. Same goes for elsewhere.
 589                                         Alert::error(_("Cannot convert file"),
 590                                                 bformat(_("An error occurred while running:\n%1$s"),
 591                                                 wrapParas(from_utf8(command))));
 592                                 }
 593                                 return false;
 594                         }
 595                 }
 596         }
 597
 598         Converter const & conv = converterlist_[edgepath.back()];
 599         if (conv.To()->dummy())
 600                 return true;
 601
 602         if (!conv.result_dir().empty()) {
 603                 // The converter has put the file(s) in a directory.
 604                 // In this case we ignore the given to_file.
 605                 if (from_base != to_base) {
 606                         string const from = subst(conv.result_dir(),
 607                                             token_base, from_base);
 608                         string const to = subst(conv.result_dir(),
 609                                           token_base, to_base);
 610                         Mover const & mover = getMover(conv.from());
 611                         if (!mover.rename(FileName(from), FileName(to))) {
 612                                 Alert::error(_("Cannot convert file"),
 613                                         bformat(_("Could not move a temporary directory from %1$s to %2$s."),
 614                                                 from_utf8(from), from_utf8(to)));
 615                                 return false;
 616                         }
 617                 }
 618                 return true;
 619         } else {
 620                 if (conversionflags & try_cache)
 621                         ConverterCache::get().add(orig_from, to_format, outfile);
 622                 return move(conv.to(), outfile, to_file, conv.latex());
 623         }
 624 }
 625
 626
 627 bool Converters::move(string const & fmt,
 628                       FileName const & from, FileName const & to, bool copy)
 629 {
 630         if (from == to)
 631                 return true;
 632
 633         bool no_errors = true;
 634         string const path = onlyPath(from.absFileName());
 635         string const base = onlyFileName(removeExtension(from.absFileName()));
 636         string const to_base = removeExtension(to.absFileName());
 637         string const to_extension = getExtension(to.absFileName());
 638
 639         support::FileNameList const files = FileName(path).dirList(getExtension(from.absFileName()));
 640         for (support::FileNameList::const_iterator it = files.begin();
 641              it != files.end(); ++it) {
 642                 string const from2 = it->absFileName();
 643                 string const file2 = onlyFileName(from2);
 644                 if (prefixIs(file2, base)) {
 645                         string const to2 = changeExtension(
 646                                 to_base + file2.substr(base.length()),
 647                                 to_extension);
 648                         LYXERR(Debug::FILES, "moving " << from2 << " to " << to2);
 649
 650                         Mover const & mover = getMover(fmt);
 651                         bool const moved = copy
 652                                 ? mover.copy(*it, FileName(to2))
 653                                 : mover.rename(*it, FileName(to2));
 654                         if (!moved && no_errors) {
 655                                 Alert::error(_("Cannot convert file"),
 656                                         bformat(copy ?
 657                                                 _("Could not copy a temporary file from %1$s to %2$s.") :
 658                                                 _("Could not move a temporary file from %1$s to %2$s."),
 659                                                 from_utf8(from2), from_utf8(to2)));
 660                                 no_errors = false;
 661                         }
 662                 }
 663         }
 664         return no_errors;
 665 }
 666
 667
 668 bool Converters::formatIsUsed(string const & format)
 669 {
 670         ConverterList::const_iterator cit = converterlist_.begin();
 671         ConverterList::const_iterator end = converterlist_.end();
 672         for (; cit != end; ++cit) {
 673                 if (cit->from() == format || cit->to() == format)
 674                         return true;
 675         }
 676         return false;
 677 }
 678
 679
 680 bool Converters::scanLog(Buffer const & buffer, string const & /*command*/,
 681                          FileName const & filename, ErrorList & errorList)
 682 {
 683         OutputParams runparams(0);
 684         runparams.flavor = OutputParams::LATEX;
 685         LaTeX latex("", runparams, filename);
 686         TeXErrors terr;
 687         int const result = latex.scanLogFile(terr);
 688
 689         if (result & LaTeX::ERRORS)
 690                 buffer.bufferErrors(terr, errorList);
 691
 692         return true;
 693 }
 694
 695
 696 bool Converters::runLaTeX(Buffer const & buffer, string const & command,
 697                           OutputParams const & runparams, ErrorList & errorList)
 698 {
 699         buffer.setBusy(true);
 700         buffer.message(_("Running LaTeX..."));
 701
 702         // do the LaTeX run(s)
 703         string const name = buffer.latexName();
 704         LaTeX latex(command, runparams, FileName(makeAbsPath(name)),
 705                     buffer.filePath(), buffer.layoutPos(),
 706                     buffer.lastPreviewError());
 707         TeXErrors terr;
 708         // The connection closes itself at the end of the scope when latex is
 709         // destroyed. One cannot close (and destroy) buffer while the converter is
 710         // running.
 711         latex.message.connect([&buffer](docstring const & msg){
 712                         buffer.message(msg);
 713                 });
 714         int const result = latex.run(terr);
 715
 716         if (result & LaTeX::ERRORS)
 717                 buffer.bufferErrors(terr, errorList);
 718
 719         if (!errorList.empty()) {
 720           // We will show the LaTeX Errors GUI later which contains
 721           // specific error messages so it would be repetitive to give
 722           // e.g. the "finished with an error" dialog in addition.
 723         }
 724         else if (result & LaTeX::NO_LOGFILE) {
 725                 docstring const str =
 726                         bformat(_("LaTeX did not run successfully. "
 727                                                "Additionally, LyX could not locate "
 728                                                "the LaTeX log %1$s."), from_utf8(name));
 729                 Alert::error(_("LaTeX failed"), str);
 730         } else if (result & LaTeX::NONZERO_ERROR) {
 731                 docstring const str =
 732                         bformat(_( "The external program\n%1$s\n"
 733                               "finished with an error. "
 734                               "It is recommended you fix the cause of the external "
 735                               "program's error (check the logs). "), from_utf8(command));
 736                 Alert::error(_("LaTeX failed"), str);
 737         } else if (result & LaTeX::NO_OUTPUT) {
 738                 Alert::warning(_("Output is empty"),
 739                                _("No output file was generated."));
 740         }
 741
 742
 743         buffer.setBusy(false);
 744
 745         int const ERROR_MASK =
 746                         LaTeX::NO_LOGFILE |
 747                         LaTeX::ERRORS |
 748                         LaTeX::NO_OUTPUT;
 749
 750         return (result & ERROR_MASK) == 0;
 751 }
 752
 753
 754
 755 void Converters::buildGraph()
 756 {
 757         // clear graph's data structures
 758         G_.init(theFormats().size());
 759         // each of the converters knows how to convert one format to another
 760         // so, for each of them, we create an arrow on the graph, going from
 761         // the one to the other
 762         ConverterList::iterator it = converterlist_.begin();
 763         ConverterList::iterator const end = converterlist_.end();
 764         for (; it != end ; ++it) {
 765                 int const from = theFormats().getNumber(it->from());
 766                 int const to   = theFormats().getNumber(it->to());
 767                 LASSERT(from >= 0, continue);
 768                 LASSERT(to >= 0, continue);
 769                 G_.addEdge(from, to);
 770         }
 771 }
 772
 773
 774 FormatList const Converters::intToFormat(vector<int> const & input)
 775 {
 776         FormatList result(input.size());
 777
 778         vector<int>::const_iterator it = input.begin();
 779         vector<int>::const_iterator const end = input.end();
 780         FormatList::iterator rit = result.begin();
 781         for ( ; it != end; ++it, ++rit) {
 782                 *rit = &theFormats().get(*it);
 783         }
 784         return result;
 785 }
 786
 787
 788 FormatList const Converters::getReachableTo(string const & target,
 789                 bool const clear_visited)
 790 {
 791         vector<int> const & reachablesto =
 792                 G_.getReachableTo(theFormats().getNumber(target), clear_visited);
 793
 794         return intToFormat(reachablesto);
 795 }
 796
 797
 798 FormatList const Converters::getReachable(string const & from,
 799                 bool const only_viewable, bool const clear_visited,
 800                 set<string> const & excludes)
 801 {
 802         set<int> excluded_numbers;
 803
 804         set<string>::const_iterator sit = excludes.begin();
 805         set<string>::const_iterator const end = excludes.end();
 806         for (; sit != end; ++sit)
 807                 excluded_numbers.insert(theFormats().getNumber(*sit));
 808
 809         vector<int> const & reachables =
 810                 G_.getReachable(theFormats().getNumber(from),
 811                                 only_viewable,
 812                                 clear_visited,
 813                                 excluded_numbers);
 814
 815         return intToFormat(reachables);
 816 }
 817
 818
 819 bool Converters::isReachable(string const & from, string const & to)
 820 {
 821         return G_.isReachable(theFormats().getNumber(from),
 822                               theFormats().getNumber(to));
 823 }
 824
 825
 826 Graph::EdgePath Converters::getPath(string const & from, string const & to)
 827 {
 828         return G_.getPath(theFormats().getNumber(from),
 829                           theFormats().getNumber(to));
 830 }
 831
 832
 833 FormatList Converters::importableFormats()
 834 {
 835         vector<string> l = loaders();
 836         FormatList result = getReachableTo(l[0], true);
 837         vector<string>::const_iterator it = l.begin() + 1;
 838         vector<string>::const_iterator en = l.end();
 839         for (; it != en; ++it) {
 840                 FormatList r = getReachableTo(*it, false);
 841                 result.insert(result.end(), r.begin(), r.end());
 842         }
 843         return result;
 844 }
 845
 846
 847 FormatList Converters::exportableFormats(bool only_viewable)
 848 {
 849         vector<string> s = savers();
 850         FormatList result = getReachable(s[0], only_viewable, true);
 851         vector<string>::const_iterator it = s.begin() + 1;
 852         vector<string>::const_iterator en = s.end();
 853         for (; it != en; ++it) {
 854                  FormatList r = getReachable(*it, only_viewable, false);
 855                 result.insert(result.end(), r.begin(), r.end());
 856         }
 857         return result;
 858 }
 859
 860
 861 vector<string> Converters::loaders() const
 862 {
 863         vector<string> v;
 864         v.push_back("lyx");
 865         v.push_back("text");
 866         v.push_back("textparagraph");
 867         return v;
 868 }
 869
 870
 871 vector<string> Converters::savers() const
 872 {
 873         vector<string> v;
 874         v.push_back("docbook");
 875         v.push_back("latex");
 876         v.push_back("literate");
 877         v.push_back("luatex");
 878         v.push_back("dviluatex");
 879         v.push_back("lyx");
 880         v.push_back("xhtml");
 881         v.push_back("pdflatex");
 882         v.push_back("platex");
 883         v.push_back("text");
 884         v.push_back("xetex");
 885         return v;
 886 }
 887
 888
 889 } // namespace lyx