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