src/LyX.cpp

   1 /**
   2  * \file LyX.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alfredo Braunstein
   7  * \author Lars Gullik Bjønnes
   8  * \author Jean-Marc Lasgouttes
   9  * \author John Levon
  10  * \author André Pönitz
  11  *
  12  * Full author contact details are available in file CREDITS.
  13  */
  14
  15 #include <config.h>
  16 #include <version.h>
  17
  18 #include "LyX.h"
  19
  20 #include "ConverterCache.h"
  21 #include "Buffer.h"
  22 #include "buffer_funcs.h"
  23 #include "BufferList.h"
  24 #include "Converter.h"
  25 #include "debug.h"
  26 #include "Encoding.h"
  27 #include "ErrorList.h"
  28 #include "Format.h"
  29 #include "gettext.h"
  30 #include "KeyMap.h"
  31 #include "Language.h"
  32 #include "Session.h"
  33 #include "Color.h"
  34 #include "callback.h"
  35 #include "LyXAction.h"
  36 #include "LyXFunc.h"
  37 #include "Lexer.h"
  38 #include "LyXRC.h"
  39 #include "Server.h"
  40 #include "ServerSocket.h"
  41 #include "TextClassList.h"
  42 #include "MenuBackend.h"
  43 #include "Messages.h"
  44 #include "Mover.h"
  45 #include "ToolbarBackend.h"
  46
  47 #include "frontends/alert.h"
  48 #include "frontends/Application.h"
  49 #include "frontends/Dialogs.h"
  50 #include "frontends/Gui.h"
  51 #include "frontends/LyXView.h"
  52
  53 #include "support/environment.h"
  54 #include "support/filetools.h"
  55 #include "support/lyxlib.h"
  56 #include "support/convert.h"
  57 #include "support/ExceptionMessage.h"
  58 #include "support/os.h"
  59 #include "support/Package.h"
  60 #include "support/Path.h"
  61 #include "support/Systemcall.h"
  62
  63 #include <boost/bind.hpp>
  64 #include <boost/filesystem/operations.hpp>
  65
  66 #include <algorithm>
  67 #include <iostream>
  68 #include <csignal>
  69 #include <map>
  70 #include <string>
  71 #include <vector>
  72
  73 using std::endl;
  74 using std::for_each;
  75 using std::map;
  76 using std::make_pair;
  77 using std::string;
  78 using std::vector;
  79
  80 #ifndef CXX_GLOBAL_CSTD
  81 using std::exit;
  82 using std::signal;
  83 using std::system;
  84 #endif
  85
  86 namespace fs = boost::filesystem;
  87
  88 namespace lyx {
  89
  90 using support::addName;
  91 using support::addPath;
  92 using support::bformat;
  93 using support::changeExtension;
  94 using support::createDirectory;
  95 using support::createLyXTmpDir;
  96 using support::destroyDir;
  97 using support::FileName;
  98 using support::fileSearch;
  99 using support::getEnv;
 100 using support::i18nLibFileSearch;
 101 using support::libFileSearch;
 102 using support::package;
 103 using support::prependEnvPath;
 104 using support::rtrim;
 105 using support::Systemcall;
 106 using frontend::LyXView;
 107
 108 namespace Alert = frontend::Alert;
 109 namespace os = support::os;
 110
 111
 112
 113 /// are we using the GUI at all?
 114 /**
 115 * We default to true and this is changed to false when the export feature is used.
 116 */
 117 bool use_gui = true;
 118
 119
 120 namespace {
 121
 122 // Filled with the command line arguments "foo" of "-sysdir foo" or
 123 // "-userdir foo".
 124 string cl_system_support;
 125 string cl_user_support;
 126
 127 std::string geometryArg;
 128
 129 LyX * singleton_ = 0;
 130
 131 void showFileError(string const & error)
 132 {
 133         Alert::warning(_("Could not read configuration file"),
 134                        bformat(_("Error while reading the configuration file\n%1$s.\n"
 135                            "Please check your installation."), from_utf8(error)));
 136 }
 137
 138
 139 void reconfigureUserLyXDir()
 140 {
 141         string const configure_command = package().configure_command();
 142
 143         lyxerr << to_utf8(_("LyX: reconfiguring user directory")) << endl;
 144         support::Path p(package().user_support());
 145         Systemcall one;
 146         one.startscript(Systemcall::Wait, configure_command);
 147         lyxerr << "LyX: " << to_utf8(_("Done!")) << endl;
 148 }
 149
 150 } // namespace anon
 151
 152
 153 /// The main application class private implementation.
 154 struct LyX::Singletons
 155 {
 156         Singletons()
 157         {
 158                 // Set the default User Interface language as soon as possible.
 159                 // The language used will be derived from the environment
 160                 // variables.
 161                 messages_["GUI"] = Messages();
 162         }
 163         /// our function handler
 164         LyXFunc lyxfunc_;
 165         ///
 166         BufferList buffer_list_;
 167         ///
 168         boost::scoped_ptr<KeyMap> toplevel_keymap_;
 169         ///
 170         boost::scoped_ptr<Server> lyx_server_;
 171         ///
 172         boost::scoped_ptr<ServerSocket> lyx_socket_;
 173         ///
 174         boost::scoped_ptr<frontend::Application> application_;
 175         /// lyx session, containing lastfiles, lastfilepos, and lastopened
 176         boost::scoped_ptr<Session> session_;
 177
 178         /// Files to load at start.
 179         vector<FileName> files_to_load_;
 180
 181         /// The messages translators.
 182         map<string, Messages> messages_;
 183
 184         /// The file converters.
 185         Converters converters_;
 186
 187         // The system converters copy after reading lyxrc.defaults.
 188         Converters system_converters_;
 189
 190         ///
 191         Movers movers_;
 192
 193         ///
 194         Movers system_movers_;
 195 };
 196
 197 ///
 198 frontend::Application * theApp()
 199 {
 200         if (singleton_)
 201                 return singleton_->pimpl_->application_.get();
 202         else
 203                 return 0;
 204 }
 205
 206
 207 LyX::~LyX()
 208 {
 209 }
 210
 211
 212 LyX & LyX::ref()
 213 {
 214         BOOST_ASSERT(singleton_);
 215         return *singleton_;
 216 }
 217
 218
 219 LyX const & LyX::cref()
 220 {
 221         BOOST_ASSERT(singleton_);
 222         return *singleton_;
 223 }
 224
 225
 226 LyX::LyX()
 227         : first_start(false)
 228 {
 229         singleton_ = this;
 230         pimpl_.reset(new Singletons);
 231 }
 232
 233
 234 BufferList & LyX::bufferList()
 235 {
 236         return pimpl_->buffer_list_;
 237 }
 238
 239
 240 BufferList const & LyX::bufferList() const
 241 {
 242         return pimpl_->buffer_list_;
 243 }
 244
 245
 246 Session & LyX::session()
 247 {
 248         BOOST_ASSERT(pimpl_->session_.get());
 249         return *pimpl_->session_.get();
 250 }
 251
 252
 253 Session const & LyX::session() const
 254 {
 255         BOOST_ASSERT(pimpl_->session_.get());
 256         return *pimpl_->session_.get();
 257 }
 258
 259
 260 LyXFunc & LyX::lyxFunc()
 261 {
 262         return pimpl_->lyxfunc_;
 263 }
 264
 265
 266 LyXFunc const & LyX::lyxFunc() const
 267 {
 268         return pimpl_->lyxfunc_;
 269 }
 270
 271
 272 Server & LyX::server()
 273 {
 274         BOOST_ASSERT(pimpl_->lyx_server_.get());
 275         return *pimpl_->lyx_server_.get();
 276 }
 277
 278
 279 Server const & LyX::server() const
 280 {
 281         BOOST_ASSERT(pimpl_->lyx_server_.get());
 282         return *pimpl_->lyx_server_.get();
 283 }
 284
 285
 286 ServerSocket & LyX::socket()
 287 {
 288         BOOST_ASSERT(pimpl_->lyx_socket_.get());
 289         return *pimpl_->lyx_socket_.get();
 290 }
 291
 292
 293 ServerSocket const & LyX::socket() const
 294 {
 295         BOOST_ASSERT(pimpl_->lyx_socket_.get());
 296         return *pimpl_->lyx_socket_.get();
 297 }
 298
 299
 300 frontend::Application & LyX::application()
 301 {
 302         BOOST_ASSERT(pimpl_->application_.get());
 303         return *pimpl_->application_.get();
 304 }
 305
 306
 307 frontend::Application const & LyX::application() const
 308 {
 309         BOOST_ASSERT(pimpl_->application_.get());
 310         return *pimpl_->application_.get();
 311 }
 312
 313
 314 KeyMap & LyX::topLevelKeymap()
 315 {
 316         BOOST_ASSERT(pimpl_->toplevel_keymap_.get());
 317         return *pimpl_->toplevel_keymap_.get();
 318 }
 319
 320
 321 Converters & LyX::converters()
 322 {
 323         return pimpl_->converters_;
 324 }
 325
 326
 327 Converters & LyX::systemConverters()
 328 {
 329         return pimpl_->system_converters_;
 330 }
 331
 332
 333 KeyMap const & LyX::topLevelKeymap() const
 334 {
 335         BOOST_ASSERT(pimpl_->toplevel_keymap_.get());
 336         return *pimpl_->toplevel_keymap_.get();
 337 }
 338
 339
 340 Messages & LyX::getMessages(std::string const & language)
 341 {
 342         map<string, Messages>::iterator it = pimpl_->messages_.find(language);
 343
 344         if (it != pimpl_->messages_.end())
 345                 return it->second;
 346
 347         std::pair<map<string, Messages>::iterator, bool> result =
 348                         pimpl_->messages_.insert(std::make_pair(language, Messages(language)));
 349
 350         BOOST_ASSERT(result.second);
 351         return result.first->second;
 352 }
 353
 354
 355 Messages & LyX::getGuiMessages()
 356 {
 357         return pimpl_->messages_["GUI"];
 358 }
 359
 360
 361 void LyX::setGuiLanguage(std::string const & language)
 362 {
 363         pimpl_->messages_["GUI"] = Messages(language);
 364 }
 365
 366
 367 Buffer const * const LyX::updateInset(Inset const * inset) const
 368 {
 369         if (quitting || !inset)
 370                 return 0;
 371
 372         Buffer const * buffer_ptr = 0;
 373         vector<int> const & view_ids = pimpl_->application_->gui().viewIds();
 374         vector<int>::const_iterator it = view_ids.begin();
 375         vector<int>::const_iterator const end = view_ids.end();
 376         for (; it != end; ++it) {
 377                 Buffer const * ptr =
 378                         pimpl_->application_->gui().view(*it).updateInset(inset);
 379                 if (ptr)
 380                         buffer_ptr = ptr;
 381         }
 382         return buffer_ptr;
 383 }
 384
 385
 386 void LyX::hideDialogs(std::string const & name, Inset * inset) const
 387 {
 388         if (quitting || !use_gui)
 389                 return;
 390
 391         vector<int> const & view_ids = pimpl_->application_->gui().viewIds();
 392         vector<int>::const_iterator it = view_ids.begin();
 393         vector<int>::const_iterator const end = view_ids.end();
 394         for (; it != end; ++it)
 395                 pimpl_->application_->gui().view(*it).getDialogs().
 396                         hide(name, inset);
 397 }
 398
 399
 400 int LyX::exec(int & argc, char * argv[])
 401 {
 402         // Here we need to parse the command line. At least
 403         // we need to parse for "-dbg" and "-help"
 404         easyParse(argc, argv);
 405
 406         try { support::init_package(to_utf8(from_local8bit(argv[0])),
 407                               cl_system_support, cl_user_support,
 408                               support::top_build_dir_is_one_level_up);
 409         } catch (support::ExceptionMessage const & message) {
 410                 if (message.type_ == support::ErrorException) {
 411                         Alert::error(message.title_, message.details_);
 412                         exit(1);
 413                 } else if (message.type_ == support::WarningException) {
 414                         Alert::warning(message.title_, message.details_);
 415                 }
 416         }
 417
 418         // Reinit the messages machinery in case package() knows
 419         // something interesting about the locale directory.
 420         Messages::init();
 421
 422         if (!use_gui) {
 423                 // FIXME: create a ConsoleApplication
 424                 int exit_status = init(argc, argv);
 425                 if (exit_status) {
 426                         prepareExit();
 427                         return exit_status;
 428                 }
 429
 430                 loadFiles();
 431
 432                 if (batch_command.empty() || pimpl_->buffer_list_.empty()) {
 433                         prepareExit();
 434                         return EXIT_SUCCESS;
 435                 }
 436
 437                 BufferList::iterator begin = pimpl_->buffer_list_.begin();
 438                 BufferList::iterator end = pimpl_->buffer_list_.end();
 439
 440                 bool final_success = false;
 441                 for (BufferList::iterator I = begin; I != end; ++I) {
 442                         Buffer * buf = *I;
 443                         bool success = false;
 444                         buf->dispatch(batch_command, &success);
 445                         final_success |= success;
 446                 }
 447                 prepareExit();
 448                 return !final_success;
 449         }
 450
 451         // Force adding of font path _before_ Application is initialized
 452         support::os::addFontResources();
 453
 454         // Let the frontend parse and remove all arguments that it knows
 455         pimpl_->application_.reset(createApplication(argc, argv));
 456
 457         initGuiFont();
 458
 459         // Parse and remove all known arguments in the LyX singleton
 460         // Give an error for all remaining ones.
 461         int exit_status = init(argc, argv);
 462         if (exit_status) {
 463                 // Kill the application object before exiting.
 464                 pimpl_->application_.reset();
 465                 use_gui = false;
 466                 prepareExit();
 467                 return exit_status;
 468         }
 469
 470         // FIXME
 471         /* Create a CoreApplication class that will provide the main event loop
 472         * and the socket callback registering. With Qt4, only QtCore
 473         * library would be needed.
 474         * When this is done, a server_mode could be created and the following two
 475         * line would be moved out from here.
 476         */
 477         // Note: socket callback must be registered after init(argc, argv)
 478         // such that package().temp_dir() is properly initialized.
 479         pimpl_->lyx_server_.reset(new Server(&pimpl_->lyxfunc_, lyxrc.lyxpipes));
 480         pimpl_->lyx_socket_.reset(new ServerSocket(&pimpl_->lyxfunc_,
 481                         FileName(package().temp_dir().absFilename() + "/lyxsocket")));
 482
 483         // Start the real execution loop.
 484         exit_status = pimpl_->application_->exec();
 485
 486         prepareExit();
 487
 488         // Restore original font resources after Application is destroyed.
 489         support::os::restoreFontResources();
 490
 491         return exit_status;
 492 }
 493
 494
 495 void LyX::prepareExit()
 496 {
 497         // Set a flag that we do quitting from the program,
 498         // so no refreshes are necessary.
 499         quitting = true;
 500
 501         // close buffers first
 502         pimpl_->buffer_list_.closeAll();
 503
 504         // do any other cleanup procedures now
 505         if (package().temp_dir() != package().system_temp_dir()) {
 506                 LYXERR(Debug::INFO) << "Deleting tmp dir "
 507                                     << package().temp_dir().absFilename() << endl;
 508
 509                 if (!destroyDir(package().temp_dir())) {
 510                         docstring const msg =
 511                                 bformat(_("Unable to remove the temporary directory %1$s"),
 512                                 from_utf8(package().temp_dir().absFilename()));
 513                         Alert::warning(_("Unable to remove temporary directory"), msg);
 514                 }
 515         }
 516
 517         if (use_gui) {
 518                 if (pimpl_->session_)
 519                         pimpl_->session_->writeFile();
 520                 pimpl_->session_.reset();
 521                 pimpl_->lyx_server_.reset();
 522                 pimpl_->lyx_socket_.reset();
 523         }
 524
 525         // Kill the application object before exiting. This avoids crashes
 526         // when exiting on Linux.
 527         if (pimpl_->application_)
 528                 pimpl_->application_.reset();
 529 }
 530
 531
 532 void LyX::earlyExit(int status)
 533 {
 534         BOOST_ASSERT(pimpl_->application_.get());
 535         // LyX::pimpl_::application_ is not initialised at this
 536         // point so it's safe to just exit after some cleanup.
 537         prepareExit();
 538         exit(status);
 539 }
 540
 541
 542 int LyX::init(int & argc, char * argv[])
 543 {
 544         // check for any spurious extra arguments
 545         // other than documents
 546         for (int argi = 1; argi < argc ; ++argi) {
 547                 if (argv[argi][0] == '-') {
 548                         lyxerr << to_utf8(
 549                                 bformat(_("Wrong command line option `%1$s'. Exiting."),
 550                                 from_utf8(argv[argi]))) << endl;
 551                         return EXIT_FAILURE;
 552                 }
 553         }
 554
 555         // Initialization of LyX (reads lyxrc and more)
 556         LYXERR(Debug::INIT) << "Initializing LyX::init..." << endl;
 557         bool success = init();
 558         LYXERR(Debug::INIT) << "Initializing LyX::init...done" << endl;
 559         if (!success)
 560                 return EXIT_FAILURE;
 561
 562         for (int argi = argc - 1; argi >= 1; --argi) {
 563                 // get absolute path of file and add ".lyx" to
 564                 // the filename if necessary
 565                 pimpl_->files_to_load_.push_back(fileSearch(string(),
 566                         os::internal_path(to_utf8(from_local8bit(argv[argi]))),
 567                         "lyx", support::allow_unreadable));
 568         }
 569
 570         if (first_start)
 571                 pimpl_->files_to_load_.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 572
 573         return EXIT_SUCCESS;
 574 }
 575
 576
 577 void LyX::addFileToLoad(FileName const & fname)
 578 {
 579         vector<FileName>::const_iterator cit = std::find(
 580                 pimpl_->files_to_load_.begin(), pimpl_->files_to_load_.end(),
 581                 fname);
 582
 583         if (cit == pimpl_->files_to_load_.end())
 584                 pimpl_->files_to_load_.push_back(fname);
 585 }
 586
 587
 588 void LyX::loadFiles()
 589 {
 590         vector<FileName>::const_iterator it = pimpl_->files_to_load_.begin();
 591         vector<FileName>::const_iterator end = pimpl_->files_to_load_.end();
 592
 593         for (; it != end; ++it) {
 594                 if (it->empty())
 595                         continue;
 596
 597                 Buffer * buf = pimpl_->buffer_list_.newBuffer(it->absFilename(), false);
 598                 if (loadLyXFile(buf, *it)) {
 599                         ErrorList const & el = buf->errorList("Parse");
 600                         if (!el.empty())
 601                                 for_each(el.begin(), el.end(),
 602                                 boost::bind(&LyX::printError, this, _1));
 603                 }
 604                 else
 605                         pimpl_->buffer_list_.release(buf);
 606         }
 607 }
 608
 609
 610 void LyX::execBatchCommands()
 611 {
 612         // The advantage of doing this here is that the event loop
 613         // is already started. So any need for interaction will be
 614         // aknowledged.
 615         restoreGuiSession();
 616
 617         // Execute batch commands if available
 618         if (batch_command.empty())
 619                 return;
 620
 621         LYXERR(Debug::INIT) << "About to handle -x '"
 622                 << batch_command << '\'' << endl;
 623
 624         pimpl_->lyxfunc_.dispatch(lyxaction.lookupFunc(batch_command));
 625 }
 626
 627
 628 void LyX::restoreGuiSession()
 629 {
 630         LyXView * view = newLyXView();
 631
 632         // if some files were specified at command-line we assume that the
 633         // user wants to edit *these* files and not to restore the session.
 634         if (!pimpl_->files_to_load_.empty()) {
 635                 for_each(pimpl_->files_to_load_.begin(),
 636                         pimpl_->files_to_load_.end(),
 637                         bind(&LyXView::loadLyXFile, view, _1, true, false, false));
 638                 // clear this list to save a few bytes of RAM
 639                 pimpl_->files_to_load_.clear();
 640                 pimpl_->session_->lastOpened().clear();
 641                 return;
 642         }
 643
 644         if (!lyxrc.load_session)
 645                 return;
 646
 647         vector<FileName> const & lastopened = pimpl_->session_->lastOpened().getfiles();
 648         // do not add to the lastfile list since these files are restored from
 649         // last session, and should be already there (regular files), or should
 650         // not be added at all (help files).
 651         for_each(lastopened.begin(), lastopened.end(),
 652                 bind(&LyXView::loadLyXFile, view, _1, false, false, false));
 653
 654         // clear this list to save a few bytes of RAM
 655         pimpl_->session_->lastOpened().clear();
 656 }
 657
 658
 659 LyXView * LyX::newLyXView()
 660 {
 661         if (!lyx::use_gui)
 662                 return 0;
 663
 664         // determine windows size and position, from lyxrc and/or session
 665         // initial geometry
 666         unsigned int width = 690;
 667         unsigned int height = 510;
 668         // default icon size, will be overwritten by  stored session value
 669         unsigned int iconSizeXY = 0;
 670         int maximized = LyXView::NotMaximized;
 671         // first try lyxrc
 672         if (lyxrc.geometry_width != 0 && lyxrc.geometry_height != 0 ) {
 673                 width = lyxrc.geometry_width;
 674                 height = lyxrc.geometry_height;
 675         }
 676         // if lyxrc returns (0,0), then use session info
 677         else {
 678                 string val = session().sessionInfo().load("WindowWidth");
 679                 if (!val.empty())
 680                         width = convert<unsigned int>(val);
 681                 val = session().sessionInfo().load("WindowHeight");
 682                 if (!val.empty())
 683                         height = convert<unsigned int>(val);
 684                 val = session().sessionInfo().load("WindowMaximized");
 685                 if (!val.empty())
 686                         maximized = convert<int>(val);
 687                 val = session().sessionInfo().load("IconSizeXY");
 688                 if (!val.empty())
 689                         iconSizeXY = convert<unsigned int>(val);
 690         }
 691
 692         // if user wants to restore window position
 693         int posx = -1;
 694         int posy = -1;
 695         if (lyxrc.geometry_xysaved) {
 696                 string val = session().sessionInfo().load("WindowPosX");
 697                 if (!val.empty())
 698                         posx = convert<int>(val);
 699                 val = session().sessionInfo().load("WindowPosY");
 700                 if (!val.empty())
 701                         posy = convert<int>(val);
 702         }
 703
 704         if (!geometryArg.empty())
 705         {
 706                 width = 0;
 707                 height = 0;
 708         }
 709
 710         // create the main window
 711         LyXView * view = &pimpl_->application_->createView(width, height, posx, posy, maximized, iconSizeXY, geometryArg);
 712
 713         return view;
 714 }
 715
 716 /*
 717 Signals and Windows
 718 ===================
 719 The SIGHUP signal does not exist on Windows and does not need to be handled.
 720
 721 Windows handles SIGFPE and SIGSEGV signals as expected.
 722
 723 Cntl+C interrupts (mapped to SIGINT by Windows' POSIX compatability layer)
 724 cause a new thread to be spawned. This may well result in unexpected
 725 behaviour by the single-threaded LyX.
 726
 727 SIGTERM signals will come only from another process actually sending
 728 that signal using 'raise' in Windows' POSIX compatability layer. It will
 729 not come from the general "terminate process" methods that everyone
 730 actually uses (and which can't be trapped). Killing an app 'politely' on
 731 Windows involves first sending a WM_CLOSE message, something that is
 732 caught already by the Qt frontend.
 733
 734 For more information see:
 735
 736 http://aspn.activestate.com/ASPN/Mail/Message/ActiveTcl/2034055
 737 ...signals are mostly useless on Windows for a variety of reasons that are
 738 Windows specific...
 739
 740 'UNIX Application Migration Guide, Chapter 9'
 741 http://msdn.microsoft.com/library/en-us/dnucmg/html/UCMGch09.asp
 742
 743 'How To Terminate an Application "Cleanly" in Win32'
 744 http://support.microsoft.com/default.aspx?scid=kb;en-us;178893
 745 */
 746 extern "C" {
 747
 748 static void error_handler(int err_sig)
 749 {
 750         // Throw away any signals other than the first one received.
 751         static sig_atomic_t handling_error = false;
 752         if (handling_error)
 753                 return;
 754         handling_error = true;
 755
 756         // We have received a signal indicating a fatal error, so
 757         // try and save the data ASAP.
 758         LyX::cref().emergencyCleanup();
 759
 760         // These lyxerr calls may or may not work:
 761
 762         // Signals are asynchronous, so the main program may be in a very
 763         // fragile state when a signal is processed and thus while a signal
 764         // handler function executes.
 765         // In general, therefore, we should avoid performing any
 766         // I/O operations or calling most library and system functions from
 767         // signal handlers.
 768
 769         // This shouldn't matter here, however, as we've already invoked
 770         // emergencyCleanup.
 771         switch (err_sig) {
 772 #ifdef SIGHUP
 773         case SIGHUP:
 774                 lyxerr << "\nlyx: SIGHUP signal caught\nBye." << endl;
 775                 break;
 776 #endif
 777         case SIGFPE:
 778                 lyxerr << "\nlyx: SIGFPE signal caught\nBye." << endl;
 779                 break;
 780         case SIGSEGV:
 781                 lyxerr << "\nlyx: SIGSEGV signal caught\n"
 782                           "Sorry, you have found a bug in LyX. "
 783                           "Please read the bug-reporting instructions "
 784                           "in Help->Introduction and send us a bug report, "
 785                           "if necessary. Thanks !\nBye." << endl;
 786                 break;
 787         case SIGINT:
 788         case SIGTERM:
 789                 // no comments
 790                 break;
 791         }
 792
 793         // Deinstall the signal handlers
 794 #ifdef SIGHUP
 795         signal(SIGHUP, SIG_DFL);
 796 #endif
 797         signal(SIGINT, SIG_DFL);
 798         signal(SIGFPE, SIG_DFL);
 799         signal(SIGSEGV, SIG_DFL);
 800         signal(SIGTERM, SIG_DFL);
 801
 802 #ifdef SIGHUP
 803         if (err_sig == SIGSEGV ||
 804             (err_sig != SIGHUP && !getEnv("LYXDEBUG").empty()))
 805 #else
 806         if (err_sig == SIGSEGV || !getEnv("LYXDEBUG").empty())
 807 #endif
 808                 support::abort();
 809         exit(0);
 810 }
 811
 812 }
 813
 814
 815 void LyX::printError(ErrorItem const & ei)
 816 {
 817         docstring tmp = _("LyX: ") + ei.error + char_type(':')
 818                 + ei.description;
 819         std::cerr << to_utf8(tmp) << std::endl;
 820 }
 821
 822
 823 void LyX::initGuiFont()
 824 {
 825         if (lyxrc.roman_font_name.empty())
 826                 lyxrc.roman_font_name = pimpl_->application_->romanFontName();
 827
 828         if (lyxrc.sans_font_name.empty())
 829                 lyxrc.sans_font_name = pimpl_->application_->sansFontName();
 830
 831         if (lyxrc.typewriter_font_name.empty())
 832                 lyxrc.typewriter_font_name
 833                         = pimpl_->application_->typewriterFontName();
 834 }
 835
 836
 837 bool LyX::init()
 838 {
 839 #ifdef SIGHUP
 840         signal(SIGHUP, error_handler);
 841 #endif
 842         signal(SIGFPE, error_handler);
 843         signal(SIGSEGV, error_handler);
 844         signal(SIGINT, error_handler);
 845         signal(SIGTERM, error_handler);
 846         // SIGPIPE can be safely ignored.
 847
 848         lyxrc.tempdir_path = package().temp_dir().absFilename();
 849         lyxrc.document_path = package().document_dir().absFilename();
 850
 851         if (lyxrc.template_path.empty()) {
 852                 lyxrc.template_path = addPath(package().system_support().absFilename(),
 853                                               "templates");
 854         }
 855
 856         //
 857         // Read configuration files
 858         //
 859
 860         // This one may have been distributed along with LyX.
 861         if (!readRcFile("lyxrc.dist"))
 862                 return false;
 863
 864         // Set the language defined by the distributor.
 865         //setGuiLanguage(lyxrc.gui_language);
 866
 867         // Set the PATH correctly.
 868 #if !defined (USE_POSIX_PACKAGING)
 869         // Add the directory containing the LyX executable to the path
 870         // so that LyX can find things like tex2lyx.
 871         if (package().build_support().empty())
 872                 prependEnvPath("PATH", package().binary_dir().absFilename());
 873 #endif
 874         if (!lyxrc.path_prefix.empty())
 875                 prependEnvPath("PATH", lyxrc.path_prefix);
 876
 877         // Check that user LyX directory is ok.
 878         if (queryUserLyXDir(package().explicit_user_support()))
 879                 reconfigureUserLyXDir();
 880
 881         // no need for a splash when there is no GUI
 882         if (!use_gui) {
 883                 first_start = false;
 884         }
 885
 886         // This one is generated in user_support directory by lib/configure.py.
 887         if (!readRcFile("lyxrc.defaults"))
 888                 return false;
 889
 890         // Query the OS to know what formats are viewed natively
 891         formats.setAutoOpen();
 892
 893         // Read lyxrc.dist again to be able to override viewer auto-detection.
 894         readRcFile("lyxrc.dist");
 895
 896         system_lyxrc = lyxrc;
 897         system_formats = formats;
 898         pimpl_->system_converters_ = pimpl_->converters_;
 899         pimpl_->system_movers_ = pimpl_->movers_;
 900         system_lcolor = lcolor;
 901
 902         // This one is edited through the preferences dialog.
 903         if (!readRcFile("preferences"))
 904                 return false;
 905
 906         if (!readEncodingsFile("encodings", "unicodesymbols"))
 907                 return false;
 908         if (!readLanguagesFile("languages"))
 909                 return false;
 910
 911         // Load the layouts
 912         LYXERR(Debug::INIT) << "Reading layouts..." << endl;
 913         if (!LyXSetStyle())
 914                 return false;
 915
 916         if (use_gui) {
 917                 // Set the language defined by the user.
 918                 //setGuiLanguage(lyxrc.gui_language);
 919
 920                 // Set up bindings
 921                 pimpl_->toplevel_keymap_.reset(new KeyMap);
 922                 defaultKeyBindings(pimpl_->toplevel_keymap_.get());
 923                 pimpl_->toplevel_keymap_->read(lyxrc.bind_file);
 924
 925                 pimpl_->lyxfunc_.initKeySequences(pimpl_->toplevel_keymap_.get());
 926
 927                 // Read menus
 928                 if (!readUIFile(lyxrc.ui_file))
 929                         return false;
 930         }
 931
 932         if (lyxerr.debugging(Debug::LYXRC))
 933                 lyxrc.print();
 934
 935         os::windows_style_tex_paths(lyxrc.windows_style_tex_paths);
 936         if (!lyxrc.path_prefix.empty())
 937                 prependEnvPath("PATH", lyxrc.path_prefix);
 938
 939         FileName const document_path(lyxrc.document_path);
 940         if (fs::exists(document_path.toFilesystemEncoding()) &&
 941             fs::is_directory(document_path.toFilesystemEncoding()))
 942                 package().document_dir() = document_path;
 943
 944         package().temp_dir() = createLyXTmpDir(FileName(lyxrc.tempdir_path));
 945         if (package().temp_dir().empty()) {
 946                 Alert::error(_("Could not create temporary directory"),
 947                              bformat(_("Could not create a temporary directory in\n"
 948                                                     "%1$s. Make sure that this\n"
 949                                                     "path exists and is writable and try again."),
 950                                      from_utf8(lyxrc.tempdir_path)));
 951                 // createLyXTmpDir() tries sufficiently hard to create a
 952                 // usable temp dir, so the probability to come here is
 953                 // close to zero. We therefore don't try to overcome this
 954                 // problem with e.g. asking the user for a new path and
 955                 // trying again but simply exit.
 956                 return false;
 957         }
 958
 959         LYXERR(Debug::INIT) << "LyX tmp dir: `"
 960                             << package().temp_dir().absFilename()
 961                             << '\'' << endl;
 962
 963         LYXERR(Debug::INIT) << "Reading session information '.lyx/session'..." << endl;
 964         pimpl_->session_.reset(new Session(lyxrc.num_lastfiles));
 965
 966         // This must happen after package initialization and after lyxrc is
 967         // read, therefore it can't be done by a static object.
 968         ConverterCache::init();
 969
 970         return true;
 971 }
 972
 973
 974 void LyX::defaultKeyBindings(KeyMap  * kbmap)
 975 {
 976         kbmap->bind("Right", FuncRequest(LFUN_CHAR_FORWARD));
 977         kbmap->bind("Left", FuncRequest(LFUN_CHAR_BACKWARD));
 978         kbmap->bind("Up", FuncRequest(LFUN_UP));
 979         kbmap->bind("Down", FuncRequest(LFUN_DOWN));
 980
 981         kbmap->bind("Tab", FuncRequest(LFUN_CELL_FORWARD));
 982         kbmap->bind("C-Tab", FuncRequest(LFUN_CELL_SPLIT));
 983         kbmap->bind("~S-ISO_Left_Tab", FuncRequest(LFUN_CELL_BACKWARD));
 984         kbmap->bind("~S-BackTab", FuncRequest(LFUN_CELL_BACKWARD));
 985
 986         kbmap->bind("Home", FuncRequest(LFUN_LINE_BEGIN));
 987         kbmap->bind("End", FuncRequest(LFUN_LINE_END));
 988         kbmap->bind("Prior", FuncRequest(LFUN_SCREEN_UP));
 989         kbmap->bind("Next", FuncRequest(LFUN_SCREEN_DOWN));
 990
 991         kbmap->bind("Return", FuncRequest(LFUN_BREAK_PARAGRAPH));
 992         //kbmap->bind("~C-~S-~M-nobreakspace", FuncRequest(LFUN_PROTECTEDSPACE));
 993
 994         kbmap->bind("Delete", FuncRequest(LFUN_CHAR_DELETE_FORWARD));
 995         kbmap->bind("BackSpace", FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
 996
 997         // kbmap->bindings to enable the use of the numeric keypad
 998         // e.g. Num Lock set
 999         //kbmap->bind("KP_0", FuncRequest(LFUN_SELF_INSERT));
1000         //kbmap->bind("KP_Decimal", FuncRequest(LFUN_SELF_INSERT));
1001         kbmap->bind("KP_Enter", FuncRequest(LFUN_BREAK_PARAGRAPH));
1002         //kbmap->bind("KP_1", FuncRequest(LFUN_SELF_INSERT));
1003         //kbmap->bind("KP_2", FuncRequest(LFUN_SELF_INSERT));
1004         //kbmap->bind("KP_3", FuncRequest(LFUN_SELF_INSERT));
1005         //kbmap->bind("KP_4", FuncRequest(LFUN_SELF_INSERT));
1006         //kbmap->bind("KP_5", FuncRequest(LFUN_SELF_INSERT));
1007         //kbmap->bind("KP_6", FuncRequest(LFUN_SELF_INSERT));
1008         //kbmap->bind("KP_Add", FuncRequest(LFUN_SELF_INSERT));
1009         //kbmap->bind("KP_7", FuncRequest(LFUN_SELF_INSERT));
1010         //kbmap->bind("KP_8", FuncRequest(LFUN_SELF_INSERT));
1011         //kbmap->bind("KP_9", FuncRequest(LFUN_SELF_INSERT));
1012         //kbmap->bind("KP_Divide", FuncRequest(LFUN_SELF_INSERT));
1013         //kbmap->bind("KP_Multiply", FuncRequest(LFUN_SELF_INSERT));
1014         //kbmap->bind("KP_Subtract", FuncRequest(LFUN_SELF_INSERT));
1015         kbmap->bind("KP_Right", FuncRequest(LFUN_CHAR_FORWARD));
1016         kbmap->bind("KP_Left", FuncRequest(LFUN_CHAR_BACKWARD));
1017         kbmap->bind("KP_Up", FuncRequest(LFUN_UP));
1018         kbmap->bind("KP_Down", FuncRequest(LFUN_DOWN));
1019         kbmap->bind("KP_Home", FuncRequest(LFUN_LINE_BEGIN));
1020         kbmap->bind("KP_End", FuncRequest(LFUN_LINE_END));
1021         kbmap->bind("KP_Prior", FuncRequest(LFUN_SCREEN_UP));
1022         kbmap->bind("KP_Next", FuncRequest(LFUN_SCREEN_DOWN));
1023 }
1024
1025
1026 void LyX::emergencyCleanup() const
1027 {
1028         // what to do about tmpfiles is non-obvious. we would
1029         // like to delete any we find, but our lyxdir might
1030         // contain documents etc. which might be helpful on
1031         // a crash
1032
1033         pimpl_->buffer_list_.emergencyWriteAll();
1034         if (use_gui) {
1035                 if (pimpl_->lyx_server_)
1036                         pimpl_->lyx_server_->emergencyCleanup();
1037                 pimpl_->lyx_server_.reset();
1038                 pimpl_->lyx_socket_.reset();
1039         }
1040 }
1041
1042
1043 void LyX::deadKeyBindings(KeyMap * kbmap)
1044 {
1045         // bindKeyings for transparent handling of deadkeys
1046         // The keysyms are gotten from XFree86 X11R6
1047         kbmap->bind("~C-~S-~M-dead_acute", FuncRequest(LFUN_ACCENT_ACUTE));
1048         kbmap->bind("~C-~S-~M-dead_breve", FuncRequest(LFUN_ACCENT_BREVE));
1049         kbmap->bind("~C-~S-~M-dead_caron", FuncRequest(LFUN_ACCENT_CARON));
1050         kbmap->bind("~C-~S-~M-dead_cedilla", FuncRequest(LFUN_ACCENT_CEDILLA));
1051         kbmap->bind("~C-~S-~M-dead_abovering", FuncRequest(LFUN_ACCENT_CIRCLE));
1052         kbmap->bind("~C-~S-~M-dead_circumflex", FuncRequest(LFUN_ACCENT_CIRCUMFLEX));
1053         kbmap->bind("~C-~S-~M-dead_abovedot", FuncRequest(LFUN_ACCENT_DOT));
1054         kbmap->bind("~C-~S-~M-dead_grave", FuncRequest(LFUN_ACCENT_GRAVE));
1055         kbmap->bind("~C-~S-~M-dead_doubleacute", FuncRequest(LFUN_ACCENT_HUNGARIAN_UMLAUT));
1056         kbmap->bind("~C-~S-~M-dead_macron", FuncRequest(LFUN_ACCENT_MACRON));
1057         // nothing with this name
1058         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_ACCENT_SPECIAL_CARON);
1059         kbmap->bind("~C-~S-~M-dead_tilde", FuncRequest(LFUN_ACCENT_TILDE));
1060         kbmap->bind("~C-~S-~M-dead_diaeresis", FuncRequest(LFUN_ACCENT_UMLAUT));
1061         // nothing with this name either...
1062         //kbmap->bind("~C-~S-~M-dead_underbar", FuncRequest(LFUN_ACCENT_UNDERBAR));
1063         kbmap->bind("~C-~S-~M-dead_belowdot", FuncRequest(LFUN_ACCENT_UNDERDOT));
1064         kbmap->bind("~C-~S-~M-dead_tie", FuncRequest(LFUN_ACCENT_TIE));
1065         kbmap->bind("~C-~S-~M-dead_ogonek",FuncRequest(LFUN_ACCENT_OGONEK));
1066 }
1067
1068
1069 namespace {
1070
1071 // return true if file does not exist or is older than configure.py.
1072 bool needsUpdate(string const & file)
1073 {
1074         // We cannot initialize configure_script directly because the package
1075         // is not initialized yet when  static objects are constructed.
1076         static string configure_script;
1077         static bool firstrun = true;
1078         if (firstrun) {
1079                 configure_script = FileName(addName(
1080                                 package().system_support().absFilename(),
1081                                 "configure.py")).toFilesystemEncoding();
1082                 firstrun = false;
1083         }
1084
1085         string const absfile = FileName(addName(
1086                 package().user_support().absFilename(), file)).toFilesystemEncoding();
1087         return (! fs::exists(absfile))
1088                 || (fs::last_write_time(configure_script)
1089                     > fs::last_write_time(absfile));
1090 }
1091
1092 }
1093
1094
1095 bool LyX::queryUserLyXDir(bool explicit_userdir)
1096 {
1097         // Does user directory exist?
1098         string const user_support =
1099                 package().user_support().toFilesystemEncoding();
1100         if (fs::exists(user_support) && fs::is_directory(user_support)) {
1101                 first_start = false;
1102
1103                 return needsUpdate("lyxrc.defaults")
1104                         || needsUpdate("textclass.lst")
1105                         || needsUpdate("packages.lst");
1106         }
1107
1108         first_start = !explicit_userdir;
1109
1110         // If the user specified explicitly a directory, ask whether
1111         // to create it. If the user says "no", then exit.
1112         if (explicit_userdir &&
1113             Alert::prompt(
1114                     _("Missing user LyX directory"),
1115                     bformat(_("You have specified a non-existent user "
1116                                            "LyX directory, %1$s.\n"
1117                                            "It is needed to keep your own configuration."),
1118                             from_utf8(package().user_support().absFilename())),
1119                     1, 0,
1120                     _("&Create directory"),
1121                     _("&Exit LyX"))) {
1122                 lyxerr << to_utf8(_("No user LyX directory. Exiting.")) << endl;
1123                 earlyExit(EXIT_FAILURE);
1124         }
1125
1126         lyxerr << to_utf8(bformat(_("LyX: Creating directory %1$s"),
1127                           from_utf8(package().user_support().absFilename())))
1128                << endl;
1129
1130         if (!createDirectory(package().user_support(), 0755)) {
1131                 // Failed, so let's exit.
1132                 lyxerr << to_utf8(_("Failed to create directory. Exiting."))
1133                        << endl;
1134                 earlyExit(EXIT_FAILURE);
1135         }
1136
1137         return true;
1138 }
1139
1140
1141 bool LyX::readRcFile(string const & name)
1142 {
1143         LYXERR(Debug::INIT) << "About to read " << name << "... ";
1144
1145         FileName const lyxrc_path = libFileSearch(string(), name);
1146         if (!lyxrc_path.empty()) {
1147
1148                 LYXERR(Debug::INIT) << "Found in " << lyxrc_path << endl;
1149
1150                 if (lyxrc.read(lyxrc_path) < 0) {
1151                         showFileError(name);
1152                         return false;
1153                 }
1154         } else
1155                 LYXERR(Debug::INIT) << "Not found." << lyxrc_path << endl;
1156         return true;
1157
1158 }
1159
1160
1161 // Read the ui file `name'
1162 bool LyX::readUIFile(string const & name, bool include)
1163 {
1164         enum Uitags {
1165                 ui_menuset = 1,
1166                 ui_toolbars,
1167                 ui_toolbarset,
1168                 ui_include,
1169                 ui_last
1170         };
1171
1172         struct keyword_item uitags[ui_last - 1] = {
1173                 { "include", ui_include },
1174                 { "menuset", ui_menuset },
1175                 { "toolbars", ui_toolbars },
1176                 { "toolbarset", ui_toolbarset }
1177         };
1178
1179         // Ensure that a file is read only once (prevents include loops)
1180         static std::list<string> uifiles;
1181         std::list<string>::const_iterator it  = uifiles.begin();
1182         std::list<string>::const_iterator end = uifiles.end();
1183         it = std::find(it, end, name);
1184         if (it != end) {
1185                 LYXERR(Debug::INIT) << "UI file '" << name
1186                                     << "' has been read already. "
1187                                     << "Is this an include loop?"
1188                                     << endl;
1189                 return false;
1190         }
1191
1192         LYXERR(Debug::INIT) << "About to read " << name << "..." << endl;
1193
1194
1195         FileName ui_path;
1196         if (include) {
1197                 ui_path = libFileSearch("ui", name, "inc");
1198                 if (ui_path.empty())
1199                         ui_path = libFileSearch("ui",
1200                                                 changeExtension(name, "inc"));
1201         }
1202         else
1203                 ui_path = libFileSearch("ui", name, "ui");
1204
1205         if (ui_path.empty()) {
1206                 LYXERR(Debug::INIT) << "Could not find " << name << endl;
1207                 showFileError(name);
1208                 return false;
1209         }
1210
1211         uifiles.push_back(name);
1212
1213         LYXERR(Debug::INIT) << "Found " << name
1214                             << " in " << ui_path << endl;
1215         Lexer lex(uitags, ui_last - 1);
1216         lex.setFile(ui_path);
1217         if (!lex.isOK()) {
1218                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
1219                        << endl;
1220         }
1221
1222         if (lyxerr.debugging(Debug::PARSER))
1223                 lex.printTable(lyxerr);
1224
1225         while (lex.isOK()) {
1226                 switch (lex.lex()) {
1227                 case ui_include: {
1228                         lex.next(true);
1229                         string const file = lex.getString();
1230                         if (!readUIFile(file, true))
1231                                 return false;
1232                         break;
1233                 }
1234                 case ui_menuset:
1235                         menubackend.read(lex);
1236                         break;
1237
1238                 case ui_toolbarset:
1239                         toolbarbackend.readToolbars(lex);
1240                         break;
1241
1242                 case ui_toolbars:
1243                         toolbarbackend.readToolbarSettings(lex);
1244                         break;
1245
1246                 default:
1247                         if (!rtrim(lex.getString()).empty())
1248                                 lex.printError("LyX::ReadUIFile: "
1249                                                "Unknown menu tag: `$$Token'");
1250                         break;
1251                 }
1252         }
1253         return true;
1254 }
1255
1256
1257 // Read the languages file `name'
1258 bool LyX::readLanguagesFile(string const & name)
1259 {
1260         LYXERR(Debug::INIT) << "About to read " << name << "..." << endl;
1261
1262         FileName const lang_path = libFileSearch(string(), name);
1263         if (lang_path.empty()) {
1264                 showFileError(name);
1265                 return false;
1266         }
1267         languages.read(lang_path);
1268         return true;
1269 }
1270
1271
1272 // Read the encodings file `name'
1273 bool LyX::readEncodingsFile(string const & enc_name,
1274                             string const & symbols_name)
1275 {
1276         LYXERR(Debug::INIT) << "About to read " << enc_name << " and "
1277                             << symbols_name << "..." << endl;
1278
1279         FileName const symbols_path = libFileSearch(string(), symbols_name);
1280         if (symbols_path.empty()) {
1281                 showFileError(symbols_name);
1282                 return false;
1283         }
1284
1285         FileName const enc_path = libFileSearch(string(), enc_name);
1286         if (enc_path.empty()) {
1287                 showFileError(enc_name);
1288                 return false;
1289         }
1290         encodings.read(enc_path, symbols_path);
1291         return true;
1292 }
1293
1294
1295 namespace {
1296
1297 string batch;
1298
1299 /// return the the number of arguments consumed
1300 typedef boost::function<int(string const &, string const &)> cmd_helper;
1301
1302 int parse_dbg(string const & arg, string const &)
1303 {
1304         if (arg.empty()) {
1305                 lyxerr << to_utf8(_("List of supported debug flags:")) << endl;
1306                 Debug::showTags(lyxerr);
1307                 exit(0);
1308         }
1309         lyxerr << to_utf8(bformat(_("Setting debug level to %1$s"), from_utf8(arg))) << endl;
1310
1311         lyxerr.level(Debug::value(arg));
1312         Debug::showLevel(lyxerr, lyxerr.level());
1313         return 1;
1314 }
1315
1316
1317 int parse_help(string const &, string const &)
1318 {
1319         lyxerr <<
1320                 to_utf8(_("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
1321                   "Command line switches (case sensitive):\n"
1322                   "\t-help              summarize LyX usage\n"
1323                   "\t-userdir dir       set user directory to dir\n"
1324                   "\t-sysdir dir        set system directory to dir\n"
1325                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
1326                   "\t-dbg feature[,feature]...\n"
1327                   "                  select the features to debug.\n"
1328                   "                  Type `lyx -dbg' to see the list of features\n"
1329                   "\t-x [--execute] command\n"
1330                   "                  where command is a lyx command.\n"
1331                   "\t-e [--export] fmt\n"
1332                   "                  where fmt is the export format of choice.\n"
1333                   "\t-i [--import] fmt file.xxx\n"
1334                   "                  where fmt is the import format of choice\n"
1335                   "                  and file.xxx is the file to be imported.\n"
1336                   "\t-version        summarize version and build info\n"
1337                                "Check the LyX man page for more details.")) << endl;
1338         exit(0);
1339         return 0;
1340 }
1341
1342 int parse_version(string const &, string const &)
1343 {
1344         lyxerr << "LyX " << lyx_version
1345                << " (" << lyx_release_date << ")" << endl;
1346         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
1347
1348         lyxerr << lyx_version_info << endl;
1349         exit(0);
1350         return 0;
1351 }
1352
1353 int parse_sysdir(string const & arg, string const &)
1354 {
1355         if (arg.empty()) {
1356                 Alert::error(_("No system directory"),
1357                         _("Missing directory for -sysdir switch"));
1358                 exit(1);
1359         }
1360         cl_system_support = arg;
1361         return 1;
1362 }
1363
1364 int parse_userdir(string const & arg, string const &)
1365 {
1366         if (arg.empty()) {
1367                 Alert::error(_("No user directory"),
1368                         _("Missing directory for -userdir switch"));
1369                 exit(1);
1370         }
1371         cl_user_support = arg;
1372         return 1;
1373 }
1374
1375 int parse_execute(string const & arg, string const &)
1376 {
1377         if (arg.empty()) {
1378                 Alert::error(_("Incomplete command"),
1379                         _("Missing command string after --execute switch"));
1380                 exit(1);
1381         }
1382         batch = arg;
1383         return 1;
1384 }
1385
1386 int parse_export(string const & type, string const &)
1387 {
1388         if (type.empty()) {
1389                 lyxerr << to_utf8(_("Missing file type [eg latex, ps...] after "
1390                                          "--export switch")) << endl;
1391                 exit(1);
1392         }
1393         batch = "buffer-export " + type;
1394         use_gui = false;
1395         return 1;
1396 }
1397
1398 int parse_import(string const & type, string const & file)
1399 {
1400         if (type.empty()) {
1401                 lyxerr << to_utf8(_("Missing file type [eg latex, ps...] after "
1402                                          "--import switch")) << endl;
1403                 exit(1);
1404         }
1405         if (file.empty()) {
1406                 lyxerr << to_utf8(_("Missing filename for --import")) << endl;
1407                 exit(1);
1408         }
1409
1410         batch = "buffer-import " + type + ' ' + file;
1411         return 2;
1412 }
1413
1414 int parse_geometry(string const & arg1, string const &)
1415 {
1416         geometryArg = arg1;
1417 #if defined(_WIN32) || (defined(__CYGWIN__) && defined(X_DISPLAY_MISSING))
1418         // remove also the arg
1419         return 1;
1420 #else
1421         // don't remove "-geometry"
1422         return -1;
1423 #endif
1424 }
1425
1426
1427 } // namespace anon
1428
1429
1430 void LyX::easyParse(int & argc, char * argv[])
1431 {
1432         std::map<string, cmd_helper> cmdmap;
1433
1434         cmdmap["-dbg"] = parse_dbg;
1435         cmdmap["-help"] = parse_help;
1436         cmdmap["--help"] = parse_help;
1437         cmdmap["-version"] = parse_version;
1438         cmdmap["--version"] = parse_version;
1439         cmdmap["-sysdir"] = parse_sysdir;
1440         cmdmap["-userdir"] = parse_userdir;
1441         cmdmap["-x"] = parse_execute;
1442         cmdmap["--execute"] = parse_execute;
1443         cmdmap["-e"] = parse_export;
1444         cmdmap["--export"] = parse_export;
1445         cmdmap["-i"] = parse_import;
1446         cmdmap["--import"] = parse_import;
1447         cmdmap["-geometry"] = parse_geometry;
1448
1449         for (int i = 1; i < argc; ++i) {
1450                 std::map<string, cmd_helper>::const_iterator it
1451                         = cmdmap.find(argv[i]);
1452
1453                 // don't complain if not found - may be parsed later
1454                 if (it == cmdmap.end())
1455                         continue;
1456
1457                 string const arg((i + 1 < argc) ? to_utf8(from_local8bit(argv[i + 1])) : string());
1458                 string const arg2((i + 2 < argc) ? to_utf8(from_local8bit(argv[i + 2])) : string());
1459
1460                 int const remove = 1 + it->second(arg, arg2);
1461
1462                 // Now, remove used arguments by shifting
1463                 // the following ones remove places down.
1464                 if (remove > 0) {
1465                         argc -= remove;
1466                         for (int j = i; j < argc; ++j)
1467                                 argv[j] = argv[j + remove];
1468                         --i;
1469                 }
1470         }
1471
1472         batch_command = batch;
1473 }
1474
1475
1476 FuncStatus getStatus(FuncRequest const & action)
1477 {
1478         return LyX::ref().lyxFunc().getStatus(action);
1479 }
1480
1481
1482 void dispatch(FuncRequest const & action)
1483 {
1484         LyX::ref().lyxFunc().dispatch(action);
1485 }
1486
1487
1488 BufferList & theBufferList()
1489 {
1490         return LyX::ref().bufferList();
1491 }
1492
1493
1494 LyXFunc & theLyXFunc()
1495 {
1496         return LyX::ref().lyxFunc();
1497 }
1498
1499
1500 Server & theServer()
1501 {
1502         // FIXME: this should not be use_gui dependent
1503         BOOST_ASSERT(use_gui);
1504         return LyX::ref().server();
1505 }
1506
1507
1508 ServerSocket & theServerSocket()
1509 {
1510         // FIXME: this should not be use_gui dependent
1511         BOOST_ASSERT(use_gui);
1512         return LyX::ref().socket();
1513 }
1514
1515
1516 KeyMap & theTopLevelKeymap()
1517 {
1518         BOOST_ASSERT(use_gui);
1519         return LyX::ref().topLevelKeymap();
1520 }
1521
1522
1523 Converters & theConverters()
1524 {
1525         return  LyX::ref().converters();
1526 }
1527
1528
1529 Converters & theSystemConverters()
1530 {
1531         return  LyX::ref().systemConverters();
1532 }
1533
1534
1535 Movers & theMovers()
1536 {
1537         return  LyX::ref().pimpl_->movers_;
1538 }
1539
1540
1541 Mover const & getMover(std::string  const & fmt)
1542 {
1543         return  LyX::ref().pimpl_->movers_(fmt);
1544 }
1545
1546
1547 void setMover(std::string const & fmt, std::string const & command)
1548 {
1549         LyX::ref().pimpl_->movers_.set(fmt, command);
1550 }
1551
1552
1553 Movers & theSystemMovers()
1554 {
1555         return  LyX::ref().pimpl_->system_movers_;
1556 }
1557
1558
1559 Messages & getMessages(std::string const & language)
1560 {
1561         return LyX::ref().getMessages(language);
1562 }
1563
1564
1565 Messages & getGuiMessages()
1566 {
1567         return LyX::ref().getGuiMessages();
1568 }
1569
1570 } // namespace lyx