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 "CutAndPaste.h"
  26 #include "debug.h"
  27 #include "Encoding.h"
  28 #include "ErrorList.h"
  29 #include "Format.h"
  30 #include "gettext.h"
  31 #include "KeyMap.h"
  32 #include "CmdDef.h"
  33 #include "Language.h"
  34 #include "Session.h"
  35 #include "Color.h"
  36 #include "LyXAction.h"
  37 #include "LyXFunc.h"
  38 #include "Lexer.h"
  39 #include "LyXRC.h"
  40 #include "ModuleList.h"
  41 #include "Server.h"
  42 #include "ServerSocket.h"
  43 #include "TextClassList.h"
  44 #include "MenuBackend.h"
  45 #include "Messages.h"
  46 #include "Mover.h"
  47 #include "ToolbarBackend.h"
  48
  49 #include "frontends/alert.h"
  50 #include "frontends/Application.h"
  51 #include "frontends/Dialogs.h"
  52 #include "frontends/Gui.h"
  53 #include "frontends/LyXView.h"
  54
  55 #include "support/environment.h"
  56 #include "support/filetools.h"
  57 #include "support/lyxlib.h"
  58 #include "support/convert.h"
  59 #include "support/ExceptionMessage.h"
  60 #include "support/os.h"
  61 #include "support/Package.h"
  62 #include "support/Path.h"
  63 #include "support/Systemcall.h"
  64
  65 #include <boost/bind.hpp>
  66
  67 #include <algorithm>
  68 #include <iostream>
  69 #include <csignal>
  70 #include <map>
  71 #include <string>
  72 #include <vector>
  73
  74 using std::endl;
  75 using std::for_each;
  76 using std::map;
  77 using std::make_pair;
  78 using std::string;
  79 using std::vector;
  80
  81 #ifndef CXX_GLOBAL_CSTD
  82 using std::exit;
  83 using std::signal;
  84 using std::system;
  85 #endif
  86
  87 namespace lyx {
  88
  89 using support::addName;
  90 using support::addPath;
  91 using support::bformat;
  92 using support::changeExtension;
  93 using support::createLyXTmpDir;
  94 using support::FileName;
  95 using support::fileSearch;
  96 using support::getEnv;
  97 using support::i18nLibFileSearch;
  98 using support::libFileSearch;
  99 using support::package;
 100 using support::prependEnvPath;
 101 using support::rtrim;
 102 using support::Systemcall;
 103 using frontend::LyXView;
 104
 105 namespace Alert = frontend::Alert;
 106 namespace os = support::os;
 107
 108
 109
 110 /// are we using the GUI at all?
 111 /**
 112 * We default to true and this is changed to false when the export feature is used.
 113 */
 114 bool use_gui = true;
 115
 116 bool quitting;  // flag, that we are quitting the program
 117
 118 namespace {
 119
 120 // Filled with the command line arguments "foo" of "-sysdir foo" or
 121 // "-userdir foo".
 122 string cl_system_support;
 123 string cl_user_support;
 124
 125 std::string geometryArg;
 126
 127 LyX * singleton_ = 0;
 128
 129 void showFileError(string const & error)
 130 {
 131         Alert::warning(_("Could not read configuration file"),
 132                        bformat(_("Error while reading the configuration file\n%1$s.\n"
 133                            "Please check your installation."), from_utf8(error)));
 134 }
 135
 136
 137 void reconfigureUserLyXDir()
 138 {
 139         string const configure_command = package().configure_command();
 140
 141         lyxerr << to_utf8(_("LyX: reconfiguring user directory")) << endl;
 142         support::Path p(package().user_support());
 143         Systemcall one;
 144         one.startscript(Systemcall::Wait, configure_command);
 145         lyxerr << "LyX: " << to_utf8(_("Done!")) << endl;
 146 }
 147
 148 } // namespace anon
 149
 150
 151 /// The main application class private implementation.
 152 struct LyX::Singletons
 153 {
 154         Singletons()
 155         {
 156                 // Set the default User Interface language as soon as possible.
 157                 // The language used will be derived from the environment
 158                 // variables.
 159                 messages_["GUI"] = Messages();
 160         }
 161         /// our function handler
 162         LyXFunc lyxfunc_;
 163         ///
 164         BufferList buffer_list_;
 165         ///
 166         boost::scoped_ptr<KeyMap> toplevel_keymap_;
 167         ///
 168         boost::scoped_ptr<CmdDef> toplevel_cmddef_;
 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 CmdDef & LyX::topLevelCmdDef()
 322 {
 323         BOOST_ASSERT(pimpl_->toplevel_cmddef_.get());
 324         return *pimpl_->toplevel_cmddef_.get();
 325 }
 326
 327
 328 Converters & LyX::converters()
 329 {
 330         return pimpl_->converters_;
 331 }
 332
 333
 334 Converters & LyX::systemConverters()
 335 {
 336         return pimpl_->system_converters_;
 337 }
 338
 339
 340 KeyMap const & LyX::topLevelKeymap() const
 341 {
 342         BOOST_ASSERT(pimpl_->toplevel_keymap_.get());
 343         return *pimpl_->toplevel_keymap_.get();
 344 }
 345
 346
 347 Messages & LyX::getMessages(std::string const & language)
 348 {
 349         map<string, Messages>::iterator it = pimpl_->messages_.find(language);
 350
 351         if (it != pimpl_->messages_.end())
 352                 return it->second;
 353
 354         std::pair<map<string, Messages>::iterator, bool> result =
 355                         pimpl_->messages_.insert(std::make_pair(language, Messages(language)));
 356
 357         BOOST_ASSERT(result.second);
 358         return result.first->second;
 359 }
 360
 361
 362 Messages & LyX::getGuiMessages()
 363 {
 364         return pimpl_->messages_["GUI"];
 365 }
 366
 367
 368 void LyX::setGuiLanguage(std::string const & language)
 369 {
 370         pimpl_->messages_["GUI"] = Messages(language);
 371 }
 372
 373
 374 Buffer const * LyX::updateInset(Inset const * inset) const
 375 {
 376         if (quitting || !inset)
 377                 return 0;
 378
 379         Buffer const * buffer_ptr = 0;
 380         vector<int> const & view_ids = pimpl_->application_->gui().viewIds();
 381         vector<int>::const_iterator it = view_ids.begin();
 382         vector<int>::const_iterator const end = view_ids.end();
 383         for (; it != end; ++it) {
 384                 Buffer const * ptr =
 385                         pimpl_->application_->gui().view(*it).updateInset(inset);
 386                 if (ptr)
 387                         buffer_ptr = ptr;
 388         }
 389         return buffer_ptr;
 390 }
 391
 392
 393 void LyX::hideDialogs(std::string const & name, Inset * inset) const
 394 {
 395         if (quitting || !use_gui)
 396                 return;
 397
 398         vector<int> const & view_ids = pimpl_->application_->gui().viewIds();
 399         vector<int>::const_iterator it = view_ids.begin();
 400         vector<int>::const_iterator const end = view_ids.end();
 401         for (; it != end; ++it)
 402                 pimpl_->application_->gui().view(*it).getDialogs().
 403                         hide(name, inset);
 404 }
 405
 406
 407 int LyX::exec(int & argc, char * argv[])
 408 {
 409         // Here we need to parse the command line. At least
 410         // we need to parse for "-dbg" and "-help"
 411         easyParse(argc, argv);
 412
 413         try {
 414                 support::init_package(to_utf8(from_local8bit(argv[0])),
 415                               cl_system_support, cl_user_support,
 416                               support::top_build_dir_is_one_level_up);
 417         } catch (support::ExceptionMessage const & message) {
 418                 if (message.type_ == support::ErrorException) {
 419                         Alert::error(message.title_, message.details_);
 420                         exit(1);
 421                 } else if (message.type_ == support::WarningException) {
 422                         Alert::warning(message.title_, message.details_);
 423                 }
 424         }
 425
 426         // Reinit the messages machinery in case package() knows
 427         // something interesting about the locale directory.
 428         Messages::init();
 429
 430         if (!use_gui) {
 431                 // FIXME: create a ConsoleApplication
 432                 int exit_status = init(argc, argv);
 433                 if (exit_status) {
 434                         prepareExit();
 435                         return exit_status;
 436                 }
 437
 438                 loadFiles();
 439
 440                 if (batch_command.empty() || pimpl_->buffer_list_.empty()) {
 441                         prepareExit();
 442                         return EXIT_SUCCESS;
 443                 }
 444
 445                 BufferList::iterator begin = pimpl_->buffer_list_.begin();
 446
 447                 bool final_success = false;
 448                 for (BufferList::iterator I = begin; I != pimpl_->buffer_list_.end(); ++I) {
 449                         Buffer * buf = *I;
 450                         if (buf != buf->masterBuffer())
 451                                 continue;
 452                         bool success = false;
 453                         buf->dispatch(batch_command, &success);
 454                         final_success |= success;
 455                 }
 456                 prepareExit();
 457                 return !final_success;
 458         }
 459
 460         // Let the frontend parse and remove all arguments that it knows
 461         pimpl_->application_.reset(createApplication(argc, argv));
 462
 463         initGuiFont();
 464
 465         // Parse and remove all known arguments in the LyX singleton
 466         // Give an error for all remaining ones.
 467         int exit_status = init(argc, argv);
 468         if (exit_status) {
 469                 // Kill the application object before exiting.
 470                 pimpl_->application_.reset();
 471                 use_gui = false;
 472                 prepareExit();
 473                 return exit_status;
 474         }
 475
 476         // FIXME
 477         /* Create a CoreApplication class that will provide the main event loop
 478         * and the socket callback registering. With Qt4, only QtCore
 479         * library would be needed.
 480         * When this is done, a server_mode could be created and the following two
 481         * line would be moved out from here.
 482         */
 483         // Note: socket callback must be registered after init(argc, argv)
 484         // such that package().temp_dir() is properly initialized.
 485         pimpl_->lyx_server_.reset(new Server(&pimpl_->lyxfunc_, lyxrc.lyxpipes));
 486         pimpl_->lyx_socket_.reset(new ServerSocket(&pimpl_->lyxfunc_,
 487                         FileName(package().temp_dir().absFilename() + "/lyxsocket")));
 488
 489         // Start the real execution loop.
 490         exit_status = pimpl_->application_->exec();
 491
 492         prepareExit();
 493
 494         return exit_status;
 495 }
 496
 497
 498 void LyX::prepareExit()
 499 {
 500         // Clear the clipboard and selection stack:
 501         cap::clearCutStack();
 502         cap::clearSelection();
 503
 504         // Set a flag that we do quitting from the program,
 505         // so no refreshes are necessary.
 506         quitting = true;
 507
 508         // close buffers first
 509         pimpl_->buffer_list_.closeAll();
 510
 511         // do any other cleanup procedures now
 512         if (package().temp_dir() != package().system_temp_dir()) {
 513                 LYXERR(Debug::INFO) << "Deleting tmp dir "
 514                                     << package().temp_dir().absFilename() << endl;
 515
 516                 if (!package().temp_dir().destroyDirectory()) {
 517                         docstring const msg =
 518                                 bformat(_("Unable to remove the temporary directory %1$s"),
 519                                 from_utf8(package().temp_dir().absFilename()));
 520                         Alert::warning(_("Unable to remove temporary directory"), msg);
 521                 }
 522         }
 523
 524         if (use_gui) {
 525                 if (pimpl_->session_)
 526                         pimpl_->session_->writeFile();
 527                 pimpl_->session_.reset();
 528                 pimpl_->lyx_server_.reset();
 529                 pimpl_->lyx_socket_.reset();
 530         }
 531
 532         // Kill the application object before exiting. This avoids crashes
 533         // when exiting on Linux.
 534         if (pimpl_->application_)
 535                 pimpl_->application_.reset();
 536 }
 537
 538
 539 void LyX::earlyExit(int status)
 540 {
 541         BOOST_ASSERT(pimpl_->application_.get());
 542         // LyX::pimpl_::application_ is not initialised at this
 543         // point so it's safe to just exit after some cleanup.
 544         prepareExit();
 545         exit(status);
 546 }
 547
 548
 549 int LyX::init(int & argc, char * argv[])
 550 {
 551         // check for any spurious extra arguments
 552         // other than documents
 553         for (int argi = 1; argi < argc ; ++argi) {
 554                 if (argv[argi][0] == '-') {
 555                         lyxerr << to_utf8(
 556                                 bformat(_("Wrong command line option `%1$s'. Exiting."),
 557                                 from_utf8(argv[argi]))) << endl;
 558                         return EXIT_FAILURE;
 559                 }
 560         }
 561
 562         // Initialization of LyX (reads lyxrc and more)
 563         LYXERR(Debug::INIT) << "Initializing LyX::init..." << endl;
 564         bool success = init();
 565         LYXERR(Debug::INIT) << "Initializing LyX::init...done" << endl;
 566         if (!success)
 567                 return EXIT_FAILURE;
 568
 569         for (int argi = argc - 1; argi >= 1; --argi) {
 570                 // get absolute path of file and add ".lyx" to
 571                 // the filename if necessary
 572                 pimpl_->files_to_load_.push_back(fileSearch(string(),
 573                         os::internal_path(to_utf8(from_local8bit(argv[argi]))),
 574                         "lyx", support::allow_unreadable));
 575         }
 576
 577         if (first_start)
 578                 pimpl_->files_to_load_.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 579
 580         return EXIT_SUCCESS;
 581 }
 582
 583
 584 void LyX::addFileToLoad(FileName const & fname)
 585 {
 586         vector<FileName>::const_iterator cit = std::find(
 587                 pimpl_->files_to_load_.begin(), pimpl_->files_to_load_.end(),
 588                 fname);
 589
 590         if (cit == pimpl_->files_to_load_.end())
 591                 pimpl_->files_to_load_.push_back(fname);
 592 }
 593
 594
 595 void LyX::loadFiles()
 596 {
 597         vector<FileName>::const_iterator it = pimpl_->files_to_load_.begin();
 598         vector<FileName>::const_iterator end = pimpl_->files_to_load_.end();
 599
 600         for (; it != end; ++it) {
 601                 if (it->empty())
 602                         continue;
 603
 604                 Buffer * buf = pimpl_->buffer_list_.newBuffer(it->absFilename(), false);
 605                 if (loadLyXFile(buf, *it)) {
 606                         ErrorList const & el = buf->errorList("Parse");
 607                         if (!el.empty())
 608                                 for_each(el.begin(), el.end(),
 609                                 boost::bind(&LyX::printError, this, _1));
 610                 }
 611                 else
 612                         pimpl_->buffer_list_.release(buf);
 613         }
 614 }
 615
 616
 617 void LyX::execBatchCommands()
 618 {
 619         // The advantage of doing this here is that the event loop
 620         // is already started. So any need for interaction will be
 621         // aknowledged.
 622         restoreGuiSession();
 623
 624         // if reconfiguration is needed.
 625         if (textclasslist.empty()) {
 626             switch (Alert::prompt(
 627                     _("No textclass is found"),
 628                     _("LyX cannot continue because no textclass is found. "
 629                       "You can either reconfigure normally, or reconfigure using "
 630                       "default textclasses, or quit LyX."),
 631                     0, 2,
 632                     _("&Reconfigure"),
 633                     _("&Use Default"),
 634                     _("&Exit LyX")))
 635                 {
 636                 case 0:
 637                         // regular reconfigure
 638                         pimpl_->lyxfunc_.dispatch(FuncRequest(LFUN_RECONFIGURE, ""));
 639                         break;
 640                 case 1:
 641                         // reconfigure --without-latex-config
 642                         pimpl_->lyxfunc_.dispatch(FuncRequest(LFUN_RECONFIGURE,
 643                                 " --without-latex-config"));
 644                         break;
 645                 }
 646                 pimpl_->lyxfunc_.dispatch(FuncRequest(LFUN_LYX_QUIT));
 647                 return;
 648         }
 649
 650         // Execute batch commands if available
 651         if (batch_command.empty())
 652                 return;
 653
 654         LYXERR(Debug::INIT) << "About to handle -x '"
 655                 << batch_command << '\'' << endl;
 656
 657         pimpl_->lyxfunc_.dispatch(lyxaction.lookupFunc(batch_command));
 658 }
 659
 660
 661 void LyX::restoreGuiSession()
 662 {
 663         LyXView * view = newLyXView();
 664
 665         // if there is no valid class list, do not load any file.
 666         if (textclasslist.empty())
 667                 return;
 668
 669         // if some files were specified at command-line we assume that the
 670         // user wants to edit *these* files and not to restore the session.
 671         if (!pimpl_->files_to_load_.empty()) {
 672                 for_each(pimpl_->files_to_load_.begin(),
 673                         pimpl_->files_to_load_.end(),
 674                         bind(&LyXView::loadLyXFile, view, _1, true));
 675                 // clear this list to save a few bytes of RAM
 676                 pimpl_->files_to_load_.clear();
 677                 pimpl_->session_->lastOpened().clear();
 678
 679         } else if (lyxrc.load_session) {
 680                 vector<FileName> const & lastopened = pimpl_->session_->lastOpened().getfiles();
 681                 // do not add to the lastfile list since these files are restored from
 682                 // last session, and should be already there (regular files), or should
 683                 // not be added at all (help files).
 684                 for_each(lastopened.begin(), lastopened.end(),
 685                         bind(&LyXView::loadLyXFile, view, _1, false));
 686
 687                 // clear this list to save a few bytes of RAM
 688                 pimpl_->session_->lastOpened().clear();
 689         }
 690
 691         BufferList::iterator I = pimpl_->buffer_list_.begin();
 692         BufferList::iterator end = pimpl_->buffer_list_.end();
 693         for (; I != end; ++I) {
 694                 Buffer * buf = *I;
 695                 if (buf != buf->masterBuffer())
 696                         continue;
 697                 updateLabels(*buf);
 698         }
 699
 700         // FIXME: Switch to the last loaded Buffer. This must not be the first one
 701         // because the Buffer won't be connected in this case. The correct solution
 702         // would be to avoid the manual connection of the current Buffer in LyXView.
 703         if (!pimpl_->buffer_list_.empty())
 704                 view->setBuffer(pimpl_->buffer_list_.last());
 705 }
 706
 707
 708 LyXView * LyX::newLyXView()
 709 {
 710         if (!lyx::use_gui)
 711                 return 0;
 712
 713         // determine windows size and position, from lyxrc and/or session
 714         // initial geometry
 715         unsigned int width = 690;
 716         unsigned int height = 510;
 717         // default icon size, will be overwritten by  stored session value
 718         unsigned int iconSizeXY = 0;
 719         int maximized = LyXView::NotMaximized;
 720         // first try lyxrc
 721         if (lyxrc.geometry_width != 0 && lyxrc.geometry_height != 0 ) {
 722                 width = lyxrc.geometry_width;
 723                 height = lyxrc.geometry_height;
 724         }
 725         // if lyxrc returns (0,0), then use session info
 726         else {
 727                 string val = session().sessionInfo().load("WindowWidth");
 728                 if (!val.empty())
 729                         width = convert<unsigned int>(val);
 730                 val = session().sessionInfo().load("WindowHeight");
 731                 if (!val.empty())
 732                         height = convert<unsigned int>(val);
 733                 val = session().sessionInfo().load("WindowMaximized");
 734                 if (!val.empty())
 735                         maximized = convert<int>(val);
 736                 val = session().sessionInfo().load("IconSizeXY");
 737                 if (!val.empty())
 738                         iconSizeXY = convert<unsigned int>(val);
 739         }
 740
 741         // if user wants to restore window position
 742         int posx = -1;
 743         int posy = -1;
 744         if (lyxrc.geometry_xysaved) {
 745                 string val = session().sessionInfo().load("WindowPosX");
 746                 if (!val.empty())
 747                         posx = convert<int>(val);
 748                 val = session().sessionInfo().load("WindowPosY");
 749                 if (!val.empty())
 750                         posy = convert<int>(val);
 751         }
 752
 753         if (!geometryArg.empty())
 754         {
 755                 width = 0;
 756                 height = 0;
 757         }
 758
 759         // create the main window
 760         LyXView * view = &pimpl_->application_->createView(width, height, posx, posy, maximized, iconSizeXY, geometryArg);
 761
 762         return view;
 763 }
 764
 765 /*
 766 Signals and Windows
 767 ===================
 768 The SIGHUP signal does not exist on Windows and does not need to be handled.
 769
 770 Windows handles SIGFPE and SIGSEGV signals as expected.
 771
 772 Cntl+C interrupts (mapped to SIGINT by Windows' POSIX compatability layer)
 773 cause a new thread to be spawned. This may well result in unexpected
 774 behaviour by the single-threaded LyX.
 775
 776 SIGTERM signals will come only from another process actually sending
 777 that signal using 'raise' in Windows' POSIX compatability layer. It will
 778 not come from the general "terminate process" methods that everyone
 779 actually uses (and which can't be trapped). Killing an app 'politely' on
 780 Windows involves first sending a WM_CLOSE message, something that is
 781 caught already by the Qt frontend.
 782
 783 For more information see:
 784
 785 http://aspn.activestate.com/ASPN/Mail/Message/ActiveTcl/2034055
 786 ...signals are mostly useless on Windows for a variety of reasons that are
 787 Windows specific...
 788
 789 'UNIX Application Migration Guide, Chapter 9'
 790 http://msdn.microsoft.com/library/en-us/dnucmg/html/UCMGch09.asp
 791
 792 'How To Terminate an Application "Cleanly" in Win32'
 793 http://support.microsoft.com/default.aspx?scid=kb;en-us;178893
 794 */
 795 extern "C" {
 796
 797 static void error_handler(int err_sig)
 798 {
 799         // Throw away any signals other than the first one received.
 800         static sig_atomic_t handling_error = false;
 801         if (handling_error)
 802                 return;
 803         handling_error = true;
 804
 805         // We have received a signal indicating a fatal error, so
 806         // try and save the data ASAP.
 807         LyX::cref().emergencyCleanup();
 808
 809         // These lyxerr calls may or may not work:
 810
 811         // Signals are asynchronous, so the main program may be in a very
 812         // fragile state when a signal is processed and thus while a signal
 813         // handler function executes.
 814         // In general, therefore, we should avoid performing any
 815         // I/O operations or calling most library and system functions from
 816         // signal handlers.
 817
 818         // This shouldn't matter here, however, as we've already invoked
 819         // emergencyCleanup.
 820         switch (err_sig) {
 821 #ifdef SIGHUP
 822         case SIGHUP:
 823                 lyxerr << "\nlyx: SIGHUP signal caught\nBye." << endl;
 824                 break;
 825 #endif
 826         case SIGFPE:
 827                 lyxerr << "\nlyx: SIGFPE signal caught\nBye." << endl;
 828                 break;
 829         case SIGSEGV:
 830                 lyxerr << "\nlyx: SIGSEGV signal caught\n"
 831                           "Sorry, you have found a bug in LyX. "
 832                           "Please read the bug-reporting instructions "
 833                           "in Help->Introduction and send us a bug report, "
 834                           "if necessary. Thanks !\nBye." << endl;
 835                 break;
 836         case SIGINT:
 837         case SIGTERM:
 838                 // no comments
 839                 break;
 840         }
 841
 842         // Deinstall the signal handlers
 843 #ifdef SIGHUP
 844         signal(SIGHUP, SIG_DFL);
 845 #endif
 846         signal(SIGINT, SIG_DFL);
 847         signal(SIGFPE, SIG_DFL);
 848         signal(SIGSEGV, SIG_DFL);
 849         signal(SIGTERM, SIG_DFL);
 850
 851 #ifdef SIGHUP
 852         if (err_sig == SIGSEGV ||
 853             (err_sig != SIGHUP && !getEnv("LYXDEBUG").empty()))
 854 #else
 855         if (err_sig == SIGSEGV || !getEnv("LYXDEBUG").empty())
 856 #endif
 857                 support::abort();
 858         exit(0);
 859 }
 860
 861 }
 862
 863
 864 void LyX::printError(ErrorItem const & ei)
 865 {
 866         docstring tmp = _("LyX: ") + ei.error + char_type(':')
 867                 + ei.description;
 868         std::cerr << to_utf8(tmp) << std::endl;
 869 }
 870
 871
 872 void LyX::initGuiFont()
 873 {
 874         if (lyxrc.roman_font_name.empty())
 875                 lyxrc.roman_font_name = pimpl_->application_->romanFontName();
 876
 877         if (lyxrc.sans_font_name.empty())
 878                 lyxrc.sans_font_name = pimpl_->application_->sansFontName();
 879
 880         if (lyxrc.typewriter_font_name.empty())
 881                 lyxrc.typewriter_font_name
 882                         = pimpl_->application_->typewriterFontName();
 883 }
 884
 885
 886 bool LyX::init()
 887 {
 888 #ifdef SIGHUP
 889         signal(SIGHUP, error_handler);
 890 #endif
 891         signal(SIGFPE, error_handler);
 892         signal(SIGSEGV, error_handler);
 893         signal(SIGINT, error_handler);
 894         signal(SIGTERM, error_handler);
 895         // SIGPIPE can be safely ignored.
 896
 897         lyxrc.tempdir_path = package().temp_dir().absFilename();
 898         lyxrc.document_path = package().document_dir().absFilename();
 899
 900         if (lyxrc.template_path.empty()) {
 901                 lyxrc.template_path = addPath(package().system_support().absFilename(),
 902                                               "templates");
 903         }
 904
 905         //
 906         // Read configuration files
 907         //
 908
 909         // This one may have been distributed along with LyX.
 910         if (!readRcFile("lyxrc.dist"))
 911                 return false;
 912
 913         // Set the language defined by the distributor.
 914         //setGuiLanguage(lyxrc.gui_language);
 915
 916         // Set the PATH correctly.
 917 #if !defined (USE_POSIX_PACKAGING)
 918         // Add the directory containing the LyX executable to the path
 919         // so that LyX can find things like tex2lyx.
 920         if (package().build_support().empty())
 921                 prependEnvPath("PATH", package().binary_dir().absFilename());
 922 #endif
 923         if (!lyxrc.path_prefix.empty())
 924                 prependEnvPath("PATH", lyxrc.path_prefix);
 925
 926         // Check that user LyX directory is ok.
 927         if (queryUserLyXDir(package().explicit_user_support()))
 928                 reconfigureUserLyXDir();
 929
 930         // no need for a splash when there is no GUI
 931         if (!use_gui) {
 932                 first_start = false;
 933         }
 934
 935         // This one is generated in user_support directory by lib/configure.py.
 936         if (!readRcFile("lyxrc.defaults"))
 937                 return false;
 938
 939         // Query the OS to know what formats are viewed natively
 940         formats.setAutoOpen();
 941
 942         // Read lyxrc.dist again to be able to override viewer auto-detection.
 943         readRcFile("lyxrc.dist");
 944
 945         system_lyxrc = lyxrc;
 946         system_formats = formats;
 947         pimpl_->system_converters_ = pimpl_->converters_;
 948         pimpl_->system_movers_ = pimpl_->movers_;
 949         system_lcolor = lcolor;
 950
 951         // This one is edited through the preferences dialog.
 952         if (!readRcFile("preferences"))
 953                 return false;
 954
 955         if (!readEncodingsFile("encodings", "unicodesymbols"))
 956                 return false;
 957         if (!readLanguagesFile("languages"))
 958                 return false;
 959
 960         // Load the layouts
 961         LYXERR(Debug::INIT) << "Reading layouts..." << endl;
 962         if (!LyXSetStyle())
 963                 return false;
 964         //...and the modules
 965         moduleList.load();
 966
 967         // read keymap and ui files in batch mode as well
 968         // because InsetInfo needs to know these to produce
 969         // the correct output
 970
 971         // Set the language defined by the user.
 972         //setGuiLanguage(lyxrc.gui_language);
 973
 974         // Set up command definitions
 975         pimpl_->toplevel_cmddef_.reset(new CmdDef);
 976         pimpl_->toplevel_cmddef_->read(lyxrc.def_file);
 977
 978         // Set up bindings
 979         pimpl_->toplevel_keymap_.reset(new KeyMap);
 980         defaultKeyBindings(pimpl_->toplevel_keymap_.get());
 981         pimpl_->toplevel_keymap_->read(lyxrc.bind_file);
 982         // load user bind file user.bind
 983         pimpl_->toplevel_keymap_->read("user");
 984
 985         pimpl_->lyxfunc_.initKeySequences(pimpl_->toplevel_keymap_.get());
 986
 987         // Read menus
 988         if (!readUIFile(lyxrc.ui_file))
 989                 return false;
 990
 991         if (lyxerr.debugging(Debug::LYXRC))
 992                 lyxrc.print();
 993
 994         os::windows_style_tex_paths(lyxrc.windows_style_tex_paths);
 995         if (!lyxrc.path_prefix.empty())
 996                 prependEnvPath("PATH", lyxrc.path_prefix);
 997
 998         FileName const document_path(lyxrc.document_path);
 999         if (document_path.exists() && document_path.isDirectory())
1000                 package().document_dir() = document_path;
1001
1002         package().temp_dir() = createLyXTmpDir(FileName(lyxrc.tempdir_path));
1003         if (package().temp_dir().empty()) {
1004                 Alert::error(_("Could not create temporary directory"),
1005                              bformat(_("Could not create a temporary directory in\n"
1006                                                     "%1$s. Make sure that this\n"
1007                                                     "path exists and is writable and try again."),
1008                                      from_utf8(lyxrc.tempdir_path)));
1009                 // createLyXTmpDir() tries sufficiently hard to create a
1010                 // usable temp dir, so the probability to come here is
1011                 // close to zero. We therefore don't try to overcome this
1012                 // problem with e.g. asking the user for a new path and
1013                 // trying again but simply exit.
1014                 return false;
1015         }
1016
1017         LYXERR(Debug::INIT) << "LyX tmp dir: `"
1018                             << package().temp_dir().absFilename()
1019                             << '\'' << endl;
1020
1021         LYXERR(Debug::INIT) << "Reading session information '.lyx/session'..." << endl;
1022         pimpl_->session_.reset(new Session(lyxrc.num_lastfiles));
1023
1024         // This must happen after package initialization and after lyxrc is
1025         // read, therefore it can't be done by a static object.
1026         ConverterCache::init();
1027
1028         return true;
1029 }
1030
1031
1032 void LyX::defaultKeyBindings(KeyMap  * kbmap)
1033 {
1034         kbmap->bind("Right", FuncRequest(LFUN_CHAR_FORWARD));
1035         kbmap->bind("Left", FuncRequest(LFUN_CHAR_BACKWARD));
1036         kbmap->bind("Up", FuncRequest(LFUN_UP));
1037         kbmap->bind("Down", FuncRequest(LFUN_DOWN));
1038
1039         kbmap->bind("Tab", FuncRequest(LFUN_CELL_FORWARD));
1040         kbmap->bind("C-Tab", FuncRequest(LFUN_CELL_SPLIT));
1041         kbmap->bind("~S-ISO_Left_Tab", FuncRequest(LFUN_CELL_BACKWARD));
1042         kbmap->bind("~S-BackTab", FuncRequest(LFUN_CELL_BACKWARD));
1043
1044         kbmap->bind("Home", FuncRequest(LFUN_LINE_BEGIN));
1045         kbmap->bind("End", FuncRequest(LFUN_LINE_END));
1046         kbmap->bind("Prior", FuncRequest(LFUN_SCREEN_UP));
1047         kbmap->bind("Next", FuncRequest(LFUN_SCREEN_DOWN));
1048
1049         kbmap->bind("Return", FuncRequest(LFUN_BREAK_PARAGRAPH));
1050         //kbmap->bind("~C-~S-~M-nobreakspace", FuncRequest(LFUN_PROTECTEDSPACE));
1051
1052         kbmap->bind("Delete", FuncRequest(LFUN_CHAR_DELETE_FORWARD));
1053         kbmap->bind("BackSpace", FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
1054
1055         // kbmap->bindings to enable the use of the numeric keypad
1056         // e.g. Num Lock set
1057         //kbmap->bind("KP_0", FuncRequest(LFUN_SELF_INSERT));
1058         //kbmap->bind("KP_Decimal", FuncRequest(LFUN_SELF_INSERT));
1059         kbmap->bind("KP_Enter", FuncRequest(LFUN_BREAK_PARAGRAPH));
1060         //kbmap->bind("KP_1", FuncRequest(LFUN_SELF_INSERT));
1061         //kbmap->bind("KP_2", FuncRequest(LFUN_SELF_INSERT));
1062         //kbmap->bind("KP_3", FuncRequest(LFUN_SELF_INSERT));
1063         //kbmap->bind("KP_4", FuncRequest(LFUN_SELF_INSERT));
1064         //kbmap->bind("KP_5", FuncRequest(LFUN_SELF_INSERT));
1065         //kbmap->bind("KP_6", FuncRequest(LFUN_SELF_INSERT));
1066         //kbmap->bind("KP_Add", FuncRequest(LFUN_SELF_INSERT));
1067         //kbmap->bind("KP_7", FuncRequest(LFUN_SELF_INSERT));
1068         //kbmap->bind("KP_8", FuncRequest(LFUN_SELF_INSERT));
1069         //kbmap->bind("KP_9", FuncRequest(LFUN_SELF_INSERT));
1070         //kbmap->bind("KP_Divide", FuncRequest(LFUN_SELF_INSERT));
1071         //kbmap->bind("KP_Multiply", FuncRequest(LFUN_SELF_INSERT));
1072         //kbmap->bind("KP_Subtract", FuncRequest(LFUN_SELF_INSERT));
1073         kbmap->bind("KP_Right", FuncRequest(LFUN_CHAR_FORWARD));
1074         kbmap->bind("KP_Left", FuncRequest(LFUN_CHAR_BACKWARD));
1075         kbmap->bind("KP_Up", FuncRequest(LFUN_UP));
1076         kbmap->bind("KP_Down", FuncRequest(LFUN_DOWN));
1077         kbmap->bind("KP_Home", FuncRequest(LFUN_LINE_BEGIN));
1078         kbmap->bind("KP_End", FuncRequest(LFUN_LINE_END));
1079         kbmap->bind("KP_Prior", FuncRequest(LFUN_SCREEN_UP));
1080         kbmap->bind("KP_Next", FuncRequest(LFUN_SCREEN_DOWN));
1081 }
1082
1083
1084 void LyX::emergencyCleanup() const
1085 {
1086         // what to do about tmpfiles is non-obvious. we would
1087         // like to delete any we find, but our lyxdir might
1088         // contain documents etc. which might be helpful on
1089         // a crash
1090
1091         pimpl_->buffer_list_.emergencyWriteAll();
1092         if (use_gui) {
1093                 if (pimpl_->lyx_server_)
1094                         pimpl_->lyx_server_->emergencyCleanup();
1095                 pimpl_->lyx_server_.reset();
1096                 pimpl_->lyx_socket_.reset();
1097         }
1098 }
1099
1100
1101 void LyX::deadKeyBindings(KeyMap * kbmap)
1102 {
1103         // bindKeyings for transparent handling of deadkeys
1104         // The keysyms are gotten from XFree86 X11R6
1105         kbmap->bind("~C-~S-~M-dead_acute", FuncRequest(LFUN_ACCENT_ACUTE));
1106         kbmap->bind("~C-~S-~M-dead_breve", FuncRequest(LFUN_ACCENT_BREVE));
1107         kbmap->bind("~C-~S-~M-dead_caron", FuncRequest(LFUN_ACCENT_CARON));
1108         kbmap->bind("~C-~S-~M-dead_cedilla", FuncRequest(LFUN_ACCENT_CEDILLA));
1109         kbmap->bind("~C-~S-~M-dead_abovering", FuncRequest(LFUN_ACCENT_CIRCLE));
1110         kbmap->bind("~C-~S-~M-dead_circumflex", FuncRequest(LFUN_ACCENT_CIRCUMFLEX));
1111         kbmap->bind("~C-~S-~M-dead_abovedot", FuncRequest(LFUN_ACCENT_DOT));
1112         kbmap->bind("~C-~S-~M-dead_grave", FuncRequest(LFUN_ACCENT_GRAVE));
1113         kbmap->bind("~C-~S-~M-dead_doubleacute", FuncRequest(LFUN_ACCENT_HUNGARIAN_UMLAUT));
1114         kbmap->bind("~C-~S-~M-dead_macron", FuncRequest(LFUN_ACCENT_MACRON));
1115         // nothing with this name
1116         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_ACCENT_SPECIAL_CARON);
1117         kbmap->bind("~C-~S-~M-dead_tilde", FuncRequest(LFUN_ACCENT_TILDE));
1118         kbmap->bind("~C-~S-~M-dead_diaeresis", FuncRequest(LFUN_ACCENT_UMLAUT));
1119         // nothing with this name either...
1120         //kbmap->bind("~C-~S-~M-dead_underbar", FuncRequest(LFUN_ACCENT_UNDERBAR));
1121         kbmap->bind("~C-~S-~M-dead_belowdot", FuncRequest(LFUN_ACCENT_UNDERDOT));
1122         kbmap->bind("~C-~S-~M-dead_tie", FuncRequest(LFUN_ACCENT_TIE));
1123         kbmap->bind("~C-~S-~M-dead_ogonek",FuncRequest(LFUN_ACCENT_OGONEK));
1124 }
1125
1126
1127 // return true if file does not exist or is older than configure.py.
1128 static bool needsUpdate(string const & file)
1129 {
1130         // We cannot initialize configure_script directly because the package
1131         // is not initialized yet when  static objects are constructed.
1132         static FileName configure_script;
1133         static bool firstrun = true;
1134         if (firstrun) {
1135                 configure_script =
1136                         FileName(addName(package().system_support().absFilename(),
1137                                 "configure.py"));
1138                 firstrun = false;
1139         }
1140
1141         FileName absfile =
1142                 FileName(addName(package().user_support().absFilename(), file));
1143         return !absfile.exists()
1144                 || configure_script.lastModified() > absfile.lastModified();
1145 }
1146
1147
1148 bool LyX::queryUserLyXDir(bool explicit_userdir)
1149 {
1150         // Does user directory exist?
1151         FileName const sup = package().user_support();
1152         if (sup.exists() && sup.isDirectory()) {
1153                 first_start = false;
1154
1155                 return needsUpdate("lyxrc.defaults")
1156                         || needsUpdate("lyxmodules.lst")
1157                         || needsUpdate("textclass.lst")
1158                         || needsUpdate("packages.lst");
1159         }
1160
1161         first_start = !explicit_userdir;
1162
1163         // If the user specified explicitly a directory, ask whether
1164         // to create it. If the user says "no", then exit.
1165         if (explicit_userdir &&
1166             Alert::prompt(
1167                     _("Missing user LyX directory"),
1168                     bformat(_("You have specified a non-existent user "
1169                                            "LyX directory, %1$s.\n"
1170                                            "It is needed to keep your own configuration."),
1171                             from_utf8(package().user_support().absFilename())),
1172                     1, 0,
1173                     _("&Create directory"),
1174                     _("&Exit LyX"))) {
1175                 lyxerr << to_utf8(_("No user LyX directory. Exiting.")) << endl;
1176                 earlyExit(EXIT_FAILURE);
1177         }
1178
1179         lyxerr << to_utf8(bformat(_("LyX: Creating directory %1$s"),
1180                           from_utf8(sup.absFilename()))) << endl;
1181
1182         if (!sup.createDirectory(0755)) {
1183                 // Failed, so let's exit.
1184                 lyxerr << to_utf8(_("Failed to create directory. Exiting."))
1185                        << endl;
1186                 earlyExit(EXIT_FAILURE);
1187         }
1188
1189         return true;
1190 }
1191
1192
1193 bool LyX::readRcFile(string const & name)
1194 {
1195         LYXERR(Debug::INIT) << "About to read " << name << "... ";
1196
1197         FileName const lyxrc_path = libFileSearch(string(), name);
1198         if (!lyxrc_path.empty()) {
1199
1200                 LYXERR(Debug::INIT) << "Found in " << lyxrc_path << endl;
1201
1202                 if (lyxrc.read(lyxrc_path) < 0) {
1203                         showFileError(name);
1204                         return false;
1205                 }
1206         } else
1207                 LYXERR(Debug::INIT) << "Not found." << lyxrc_path << endl;
1208         return true;
1209
1210 }
1211
1212
1213 // Read the ui file `name'
1214 bool LyX::readUIFile(string const & name, bool include)
1215 {
1216         enum Uitags {
1217                 ui_menuset = 1,
1218                 ui_toolbars,
1219                 ui_toolbarset,
1220                 ui_include,
1221                 ui_last
1222         };
1223
1224         struct keyword_item uitags[ui_last - 1] = {
1225                 { "include", ui_include },
1226                 { "menuset", ui_menuset },
1227                 { "toolbars", ui_toolbars },
1228                 { "toolbarset", ui_toolbarset }
1229         };
1230
1231         // Ensure that a file is read only once (prevents include loops)
1232         static std::list<string> uifiles;
1233         std::list<string>::const_iterator it  = uifiles.begin();
1234         std::list<string>::const_iterator end = uifiles.end();
1235         it = std::find(it, end, name);
1236         if (it != end) {
1237                 LYXERR(Debug::INIT) << "UI file '" << name
1238                                     << "' has been read already. "
1239                                     << "Is this an include loop?"
1240                                     << endl;
1241                 return false;
1242         }
1243
1244         LYXERR(Debug::INIT) << "About to read " << name << "..." << endl;
1245
1246
1247         FileName ui_path;
1248         if (include) {
1249                 ui_path = libFileSearch("ui", name, "inc");
1250                 if (ui_path.empty())
1251                         ui_path = libFileSearch("ui",
1252                                                 changeExtension(name, "inc"));
1253         }
1254         else
1255                 ui_path = libFileSearch("ui", name, "ui");
1256
1257         if (ui_path.empty()) {
1258                 LYXERR(Debug::INIT) << "Could not find " << name << endl;
1259                 showFileError(name);
1260                 return false;
1261         }
1262
1263         uifiles.push_back(name);
1264
1265         LYXERR(Debug::INIT) << "Found " << name
1266                             << " in " << ui_path << endl;
1267         Lexer lex(uitags, ui_last - 1);
1268         lex.setFile(ui_path);
1269         if (!lex.isOK()) {
1270                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
1271                        << endl;
1272         }
1273
1274         if (lyxerr.debugging(Debug::PARSER))
1275                 lex.printTable(lyxerr);
1276
1277         while (lex.isOK()) {
1278                 switch (lex.lex()) {
1279                 case ui_include: {
1280                         lex.next(true);
1281                         string const file = lex.getString();
1282                         if (!readUIFile(file, true))
1283                                 return false;
1284                         break;
1285                 }
1286                 case ui_menuset:
1287                         menubackend.read(lex);
1288                         break;
1289
1290                 case ui_toolbarset:
1291                         toolbarbackend.readToolbars(lex);
1292                         break;
1293
1294                 case ui_toolbars:
1295                         toolbarbackend.readToolbarSettings(lex);
1296                         break;
1297
1298                 default:
1299                         if (!rtrim(lex.getString()).empty())
1300                                 lex.printError("LyX::ReadUIFile: "
1301                                                "Unknown menu tag: `$$Token'");
1302                         break;
1303                 }
1304         }
1305         return true;
1306 }
1307
1308
1309 // Read the languages file `name'
1310 bool LyX::readLanguagesFile(string const & name)
1311 {
1312         LYXERR(Debug::INIT) << "About to read " << name << "..." << endl;
1313
1314         FileName const lang_path = libFileSearch(string(), name);
1315         if (lang_path.empty()) {
1316                 showFileError(name);
1317                 return false;
1318         }
1319         languages.read(lang_path);
1320         return true;
1321 }
1322
1323
1324 // Read the encodings file `name'
1325 bool LyX::readEncodingsFile(string const & enc_name,
1326                             string const & symbols_name)
1327 {
1328         LYXERR(Debug::INIT) << "About to read " << enc_name << " and "
1329                             << symbols_name << "..." << endl;
1330
1331         FileName const symbols_path = libFileSearch(string(), symbols_name);
1332         if (symbols_path.empty()) {
1333                 showFileError(symbols_name);
1334                 return false;
1335         }
1336
1337         FileName const enc_path = libFileSearch(string(), enc_name);
1338         if (enc_path.empty()) {
1339                 showFileError(enc_name);
1340                 return false;
1341         }
1342         encodings.read(enc_path, symbols_path);
1343         return true;
1344 }
1345
1346
1347 namespace {
1348
1349 string batch;
1350
1351 /// return the the number of arguments consumed
1352 typedef boost::function<int(string const &, string const &)> cmd_helper;
1353
1354 int parse_dbg(string const & arg, string const &)
1355 {
1356         if (arg.empty()) {
1357                 lyxerr << to_utf8(_("List of supported debug flags:")) << endl;
1358                 Debug::showTags(lyxerr);
1359                 exit(0);
1360         }
1361         lyxerr << to_utf8(bformat(_("Setting debug level to %1$s"), from_utf8(arg))) << endl;
1362
1363         lyxerr.level(Debug::value(arg));
1364         Debug::showLevel(lyxerr, lyxerr.level());
1365         return 1;
1366 }
1367
1368
1369 int parse_help(string const &, string const &)
1370 {
1371         lyxerr <<
1372                 to_utf8(_("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
1373                   "Command line switches (case sensitive):\n"
1374                   "\t-help              summarize LyX usage\n"
1375                   "\t-userdir dir       set user directory to dir\n"
1376                   "\t-sysdir dir        set system directory to dir\n"
1377                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
1378                   "\t-dbg feature[,feature]...\n"
1379                   "                  select the features to debug.\n"
1380                   "                  Type `lyx -dbg' to see the list of features\n"
1381                   "\t-x [--execute] command\n"
1382                   "                  where command is a lyx command.\n"
1383                   "\t-e [--export] fmt\n"
1384                   "                  where fmt is the export format of choice.\n"
1385                   "\t-i [--import] fmt file.xxx\n"
1386                   "                  where fmt is the import format of choice\n"
1387                   "                  and file.xxx is the file to be imported.\n"
1388                   "\t-version        summarize version and build info\n"
1389                                "Check the LyX man page for more details.")) << endl;
1390         exit(0);
1391         return 0;
1392 }
1393
1394 int parse_version(string const &, string const &)
1395 {
1396         lyxerr << "LyX " << lyx_version
1397                << " (" << lyx_release_date << ")" << endl;
1398         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
1399
1400         lyxerr << lyx_version_info << endl;
1401         exit(0);
1402         return 0;
1403 }
1404
1405 int parse_sysdir(string const & arg, string const &)
1406 {
1407         if (arg.empty()) {
1408                 Alert::error(_("No system directory"),
1409                         _("Missing directory for -sysdir switch"));
1410                 exit(1);
1411         }
1412         cl_system_support = arg;
1413         return 1;
1414 }
1415
1416 int parse_userdir(string const & arg, string const &)
1417 {
1418         if (arg.empty()) {
1419                 Alert::error(_("No user directory"),
1420                         _("Missing directory for -userdir switch"));
1421                 exit(1);
1422         }
1423         cl_user_support = arg;
1424         return 1;
1425 }
1426
1427 int parse_execute(string const & arg, string const &)
1428 {
1429         if (arg.empty()) {
1430                 Alert::error(_("Incomplete command"),
1431                         _("Missing command string after --execute switch"));
1432                 exit(1);
1433         }
1434         batch = arg;
1435         return 1;
1436 }
1437
1438 int parse_export(string const & type, string const &)
1439 {
1440         if (type.empty()) {
1441                 lyxerr << to_utf8(_("Missing file type [eg latex, ps...] after "
1442                                          "--export switch")) << endl;
1443                 exit(1);
1444         }
1445         batch = "buffer-export " + type;
1446         use_gui = false;
1447         return 1;
1448 }
1449
1450 int parse_import(string const & type, string const & file)
1451 {
1452         if (type.empty()) {
1453                 lyxerr << to_utf8(_("Missing file type [eg latex, ps...] after "
1454                                          "--import switch")) << endl;
1455                 exit(1);
1456         }
1457         if (file.empty()) {
1458                 lyxerr << to_utf8(_("Missing filename for --import")) << endl;
1459                 exit(1);
1460         }
1461
1462         batch = "buffer-import " + type + ' ' + file;
1463         return 2;
1464 }
1465
1466 int parse_geometry(string const & arg1, string const &)
1467 {
1468         geometryArg = arg1;
1469 #if defined(_WIN32) || (defined(__CYGWIN__) && defined(X_DISPLAY_MISSING))
1470         // remove also the arg
1471         return 1;
1472 #else
1473         // don't remove "-geometry"
1474         return -1;
1475 #endif
1476 }
1477
1478
1479 } // namespace anon
1480
1481
1482 void LyX::easyParse(int & argc, char * argv[])
1483 {
1484         std::map<string, cmd_helper> cmdmap;
1485
1486         cmdmap["-dbg"] = parse_dbg;
1487         cmdmap["-help"] = parse_help;
1488         cmdmap["--help"] = parse_help;
1489         cmdmap["-version"] = parse_version;
1490         cmdmap["--version"] = parse_version;
1491         cmdmap["-sysdir"] = parse_sysdir;
1492         cmdmap["-userdir"] = parse_userdir;
1493         cmdmap["-x"] = parse_execute;
1494         cmdmap["--execute"] = parse_execute;
1495         cmdmap["-e"] = parse_export;
1496         cmdmap["--export"] = parse_export;
1497         cmdmap["-i"] = parse_import;
1498         cmdmap["--import"] = parse_import;
1499         cmdmap["-geometry"] = parse_geometry;
1500
1501         for (int i = 1; i < argc; ++i) {
1502                 std::map<string, cmd_helper>::const_iterator it
1503                         = cmdmap.find(argv[i]);
1504
1505                 // don't complain if not found - may be parsed later
1506                 if (it == cmdmap.end())
1507                         continue;
1508
1509                 string const arg((i + 1 < argc) ? to_utf8(from_local8bit(argv[i + 1])) : string());
1510                 string const arg2((i + 2 < argc) ? to_utf8(from_local8bit(argv[i + 2])) : string());
1511
1512                 int const remove = 1 + it->second(arg, arg2);
1513
1514                 // Now, remove used arguments by shifting
1515                 // the following ones remove places down.
1516                 if (remove > 0) {
1517                         argc -= remove;
1518                         for (int j = i; j < argc; ++j)
1519                                 argv[j] = argv[j + remove];
1520                         --i;
1521                 }
1522         }
1523
1524         batch_command = batch;
1525 }
1526
1527
1528 FuncStatus getStatus(FuncRequest const & action)
1529 {
1530         return LyX::ref().lyxFunc().getStatus(action);
1531 }
1532
1533
1534 void dispatch(FuncRequest const & action)
1535 {
1536         LyX::ref().lyxFunc().dispatch(action);
1537 }
1538
1539
1540 BufferList & theBufferList()
1541 {
1542         return LyX::ref().bufferList();
1543 }
1544
1545
1546 LyXFunc & theLyXFunc()
1547 {
1548         return LyX::ref().lyxFunc();
1549 }
1550
1551
1552 Server & theServer()
1553 {
1554         // FIXME: this should not be use_gui dependent
1555         BOOST_ASSERT(use_gui);
1556         return LyX::ref().server();
1557 }
1558
1559
1560 ServerSocket & theServerSocket()
1561 {
1562         // FIXME: this should not be use_gui dependent
1563         BOOST_ASSERT(use_gui);
1564         return LyX::ref().socket();
1565 }
1566
1567
1568 KeyMap & theTopLevelKeymap()
1569 {
1570         return LyX::ref().topLevelKeymap();
1571 }
1572
1573
1574 Converters & theConverters()
1575 {
1576         return  LyX::ref().converters();
1577 }
1578
1579
1580 Converters & theSystemConverters()
1581 {
1582         return  LyX::ref().systemConverters();
1583 }
1584
1585
1586 Movers & theMovers()
1587 {
1588         return  LyX::ref().pimpl_->movers_;
1589 }
1590
1591
1592 Mover const & getMover(std::string  const & fmt)
1593 {
1594         return  LyX::ref().pimpl_->movers_(fmt);
1595 }
1596
1597
1598 void setMover(std::string const & fmt, std::string const & command)
1599 {
1600         LyX::ref().pimpl_->movers_.set(fmt, command);
1601 }
1602
1603
1604 Movers & theSystemMovers()
1605 {
1606         return  LyX::ref().pimpl_->system_movers_;
1607 }
1608
1609
1610 Messages & getMessages(std::string const & language)
1611 {
1612         return LyX::ref().getMessages(language);
1613 }
1614
1615
1616 Messages & getGuiMessages()
1617 {
1618         return LyX::ref().getGuiMessages();
1619 }
1620
1621 } // namespace lyx