src/lyx_main.C

   1 /**
   2  * \file lyx_main.C
   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_main.h"
  19
  20 #include "buffer.h"
  21 #include "buffer_funcs.h"
  22 #include "bufferlist.h"
  23 #include "converter.h"
  24 #include "debug.h"
  25 #include "encoding.h"
  26 #include "errorlist.h"
  27 #include "format.h"
  28 #include "gettext.h"
  29 #include "kbmap.h"
  30 #include "language.h"
  31 #include "session.h"
  32 #include "LColor.h"
  33 #include "lyx_cb.h"
  34 #include "lyxfunc.h"
  35 #include "lyxlex.h"
  36 #include "lyxrc.h"
  37 #include "lyxserver.h"
  38 #include "lyxtextclasslist.h"
  39 #include "MenuBackend.h"
  40 #include "mover.h"
  41 #include "ToolbarBackend.h"
  42
  43 #include "frontends/Alert.h"
  44 #include "frontends/Application.h"
  45 #include "frontends/lyx_gui.h"
  46 #include "frontends/LyXView.h"
  47
  48 #include "support/environment.h"
  49 #include "support/filetools.h"
  50 #include "support/fontutils.h"
  51 #include "support/lyxlib.h"
  52 #include "support/convert.h"
  53 #include "support/os.h"
  54 #include "support/package.h"
  55 #include "support/path.h"
  56 #include "support/systemcall.h"
  57
  58 #include <boost/bind.hpp>
  59 #include <boost/filesystem/operations.hpp>
  60
  61 #include <iostream>
  62 #include <csignal>
  63
  64 using lyx::support::addName;
  65 using lyx::support::addPath;
  66 using lyx::support::bformat;
  67 using lyx::support::createDirectory;
  68 using lyx::support::createLyXTmpDir;
  69 using lyx::support::fileSearch;
  70 using lyx::support::getEnv;
  71 using lyx::support::i18nLibFileSearch;
  72 using lyx::support::libFileSearch;
  73 using lyx::support::package;
  74 using lyx::support::prependEnvPath;
  75 using lyx::support::rtrim;
  76 using lyx::support::Systemcall;
  77
  78 using lyx::docstring;
  79
  80 namespace Alert = lyx::frontend::Alert;
  81 namespace os = lyx::support::os;
  82 namespace fs = boost::filesystem;
  83
  84 using std::endl;
  85 using std::string;
  86 using std::vector;
  87 using std::for_each;
  88
  89 #ifndef CXX_GLOBAL_CSTD
  90 using std::exit;
  91 using std::signal;
  92 using std::system;
  93 #endif
  94
  95
  96 // convenient to have it here.
  97 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  98
  99 namespace {
 100
 101 // Filled with the command line arguments "foo" of "-sysdir foo" or
 102 // "-userdir foo".
 103 string cl_system_support;
 104 string cl_user_support;
 105
 106
 107 void lyx_exit(int status)
 108 {
 109         // FIXME: We should not directly call exit(), since it only
 110         // guarantees a return to the system, no application cleanup.
 111         // This may cause troubles with not executed destructors.
 112         if (lyx_gui::use_gui) {
 113                 theApp->exit(status);
 114                 // Restore original font resources after Application is destroyed.
 115                 lyx::support::restoreFontResources();
 116         }
 117
 118         exit(status);
 119 }
 120
 121
 122 void showFileError(string const & error)
 123 {
 124         Alert::warning(_("Could not read configuration file"),
 125                        bformat(_("Error while reading the configuration file\n%1$s.\n"
 126                            "Please check your installation."), lyx::from_utf8(error)));
 127 }
 128
 129
 130 void reconfigureUserLyXDir()
 131 {
 132         string const configure_command = package().configure_command();
 133
 134         lyxerr << lyx::to_utf8(_("LyX: reconfiguring user directory")) << endl;
 135         lyx::support::Path p(package().user_support());
 136         Systemcall one;
 137         one.startscript(Systemcall::Wait, configure_command);
 138         lyxerr << "LyX: " << lyx::to_utf8(_("Done!")) << endl;
 139 }
 140
 141 } // namespace anon
 142
 143
 144 boost::scoped_ptr<LyX> LyX::singleton_;
 145
 146 int LyX::exec(int & argc, char * argv[])
 147 {
 148         BOOST_ASSERT(!singleton_.get());
 149         // We must return from this before launching the gui so that
 150         // other parts of the code can access singleton_ through
 151         // LyX::ref and LyX::cref.
 152         singleton_.reset(new LyX);
 153         // Start the real execution loop.
 154         return singleton_->priv_exec(argc, argv);
 155 }
 156
 157
 158 LyX & LyX::ref()
 159 {
 160         BOOST_ASSERT(singleton_.get());
 161         return *singleton_.get();
 162 }
 163
 164
 165 LyX const & LyX::cref()
 166 {
 167         BOOST_ASSERT(singleton_.get());
 168         return *singleton_.get();
 169 }
 170
 171
 172 LyX::LyX()
 173         : first_start(false), geometryOption_(false)
 174 {}
 175
 176
 177 lyx::Session & LyX::session()
 178 {
 179         BOOST_ASSERT(session_.get());
 180         return *session_.get();
 181 }
 182
 183
 184 lyx::Session const & LyX::session() const
 185 {
 186         BOOST_ASSERT(session_.get());
 187         return *session_.get();
 188 }
 189
 190
 191 void LyX::addLyXView(LyXView * lyxview)
 192 {
 193         views_.push_back(lyxview);
 194 }
 195
 196
 197 Buffer const * const LyX::updateInset(InsetBase const * inset) const
 198 {
 199         if (!inset)
 200                 return 0;
 201
 202         Buffer const * buffer_ptr = 0;
 203         ViewList::const_iterator it = views_.begin();
 204         ViewList::const_iterator const end = views_.end();
 205         for (; it != end; ++it) {
 206                 Buffer const * ptr = (*it)->updateInset(inset);
 207                 if (ptr)
 208                         buffer_ptr = ptr;
 209         }
 210         return buffer_ptr;
 211 }
 212
 213
 214 int LyX::priv_exec(int & argc, char * argv[])
 215 {
 216         // Here we need to parse the command line. At least
 217         // we need to parse for "-dbg" and "-help"
 218         lyx_gui::use_gui = easyParse(argc, argv);
 219
 220         lyx::support::init_package(argv[0], cl_system_support, cl_user_support,
 221                                    lyx::support::top_build_dir_is_one_level_up);
 222
 223         // Start the real execution loop.
 224         if (lyx_gui::use_gui) {
 225                 // Force adding of font path _before_ Application is initialized
 226                 lyx::support::addFontResources();
 227                 return lyx_gui::exec(argc, argv);
 228         }
 229         else
 230                 return exec2(argc, argv);
 231 }
 232
 233
 234 int LyX::exec2(int & argc, char * argv[])
 235 {
 236         // check for any spurious extra arguments
 237         // other than documents
 238         for (int argi = 1; argi < argc ; ++argi) {
 239                 if (argv[argi][0] == '-') {
 240                         lyxerr << lyx::to_utf8(
 241                                 bformat(_("Wrong command line option `%1$s'. Exiting."),
 242                                 lyx::from_utf8(argv[argi]))) << endl;
 243                         return EXIT_FAILURE;
 244                 }
 245         }
 246
 247         // Initialization of LyX (reads lyxrc and more)
 248         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 249         bool const success = init();
 250         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 251         if (!success)
 252                 return EXIT_FAILURE;
 253
 254         vector<string> files;
 255
 256         for (int argi = argc - 1; argi >= 1; --argi)
 257                 files.push_back(os::internal_path(argv[argi]));
 258
 259         if (first_start)
 260                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 261
 262         // Execute batch commands if available
 263         if (!batch_command.empty()) {
 264
 265                 lyxerr[Debug::INIT] << "About to handle -x '"
 266                        << batch_command << '\'' << endl;
 267
 268                 Buffer * last_loaded = 0;
 269
 270                 vector<string>::const_iterator it = files.begin();
 271                 vector<string>::const_iterator end = files.end();
 272
 273                 for (; it != end; ++it) {
 274                         // get absolute path of file and add ".lyx" to
 275                         // the filename if necessary
 276                         string s = fileSearch(string(), *it, "lyx");
 277                         if (s.empty()) {
 278                                 Buffer * const b = newFile(*it, string(), true);
 279                                 if (b)
 280                                         last_loaded = b;
 281                         } else {
 282                                 Buffer * buf = theBufferList().newBuffer(s, false);
 283                                 if (loadLyXFile(buf, s)) {
 284                                         last_loaded = buf;
 285                                         ErrorList const & el = buf->errorList("Parse");
 286                                         if (!el.empty())
 287                                                 for_each(el.begin(), el.end(),
 288                                                         boost::bind(&LyX::printError, this, _1));
 289                                 }
 290                                 else
 291                                         theBufferList().release(buf);
 292                         }
 293                 }
 294
 295                 // try to dispatch to last loaded buffer first
 296                 if (last_loaded) {
 297                         bool success = false;
 298                         if (last_loaded->dispatch(batch_command, &success)) {
 299                                 quitLyX(false);
 300                                 return !success;
 301                         }
 302                 }
 303                 files.clear(); // the files are already loaded
 304         }
 305
 306         if (lyx_gui::use_gui) {
 307                 // determine windows size and position, from lyxrc and/or session
 308                 // initial geometry
 309                 unsigned int width = 690;
 310                 unsigned int height = 510;
 311                 bool maximize = false;
 312                 // first try lyxrc
 313                 if (lyxrc.geometry_width != 0 && lyxrc.geometry_height != 0 ) {
 314                         width = lyxrc.geometry_width;
 315                         height = lyxrc.geometry_height;
 316                 }
 317                 // if lyxrc returns (0,0), then use session info
 318                 else {
 319                         string val = session().loadSessionInfo("WindowWidth");
 320                         if (!val.empty())
 321                                 width = convert<unsigned int>(val);
 322                         val = session().loadSessionInfo("WindowHeight");
 323                         if (!val.empty())
 324                                 height = convert<unsigned int>(val);
 325                         if (session().loadSessionInfo("WindowIsMaximized") == "yes")
 326                                 maximize = true;
 327                 }
 328                 // if user wants to restore window position
 329                 int posx = -1;
 330                 int posy = -1;
 331                 if (lyxrc.geometry_xysaved) {
 332                         string val = session().loadSessionInfo("WindowPosX");
 333                         if (!val.empty())
 334                                 posx = convert<int>(val);
 335                         val = session().loadSessionInfo("WindowPosY");
 336                         if (!val.empty())
 337                                 posy = convert<int>(val);
 338                 }
 339
 340                 if (geometryOption_) {
 341                         width = 0;
 342                         height = 0;
 343                 }
 344                 // create the main window
 345                 LyXView * view = &theApp->createView(width, height, posx, posy, maximize);
 346                 ref().addLyXView(view);
 347
 348                 // load files
 349                 for_each(files.begin(), files.end(),
 350                         bind(&LyXView::loadLyXFile, view, _1, true));
 351
 352                 // if a file is specified, I assume that user wants to edit *that* file
 353                 if (files.empty() && lyxrc.load_session) {
 354                         vector<string> const & lastopened = session_->lastOpenedFiles();
 355                         // do not add to the lastfile list since these files are restored from
 356                         // last seesion, and should be already there (regular files), or should
 357                         // not be added at all (help files).
 358                         for_each(lastopened.begin(), lastopened.end(),
 359                                 bind(&LyXView::loadLyXFile, view, _1, false));
 360                 }
 361                 // clear this list to save a few bytes of RAM
 362                 session_->clearLastOpenedFiles();
 363
 364                 return theApp->start(batch_command);
 365         } else {
 366                 // Something went wrong above
 367                 quitLyX(false);
 368                 return EXIT_FAILURE;
 369         }
 370 }
 371
 372
 373 /*
 374 Signals and Windows
 375 ===================
 376 The SIGHUP signal does not exist on Windows and does not need to be handled.
 377
 378 Windows handles SIGFPE and SIGSEGV signals as expected.
 379
 380 Cntl+C interrupts (mapped to SIGINT by Windows' POSIX compatability layer)
 381 cause a new thread to be spawned. This may well result in unexpected
 382 behaviour by the single-threaded LyX.
 383
 384 SIGTERM signals will come only from another process actually sending
 385 that signal using 'raise' in Windows' POSIX compatability layer. It will
 386 not come from the general "terminate process" methods that everyone
 387 actually uses (and which can't be trapped). Killing an app 'politely' on
 388 Windows involves first sending a WM_CLOSE message, something that is
 389 caught already by the Qt frontend.
 390
 391 For more information see:
 392
 393 http://aspn.activestate.com/ASPN/Mail/Message/ActiveTcl/2034055
 394 ...signals are mostly useless on Windows for a variety of reasons that are
 395 Windows specific...
 396
 397 'UNIX Application Migration Guide, Chapter 9'
 398 http://msdn.microsoft.com/library/en-us/dnucmg/html/UCMGch09.asp
 399
 400 'How To Terminate an Application "Cleanly" in Win32'
 401 http://support.microsoft.com/default.aspx?scid=kb;en-us;178893
 402 */
 403 extern "C" {
 404
 405 static void error_handler(int err_sig)
 406 {
 407         // Throw away any signals other than the first one received.
 408         static sig_atomic_t handling_error = false;
 409         if (handling_error)
 410                 return;
 411         handling_error = true;
 412
 413         // We have received a signal indicating a fatal error, so
 414         // try and save the data ASAP.
 415         LyX::cref().emergencyCleanup();
 416
 417         // These lyxerr calls may or may not work:
 418
 419         // Signals are asynchronous, so the main program may be in a very
 420         // fragile state when a signal is processed and thus while a signal
 421         // handler function executes.
 422         // In general, therefore, we should avoid performing any
 423         // I/O operations or calling most library and system functions from
 424         // signal handlers.
 425
 426         // This shouldn't matter here, however, as we've already invoked
 427         // emergencyCleanup.
 428         switch (err_sig) {
 429 #ifdef SIGHUP
 430         case SIGHUP:
 431                 lyxerr << "\nlyx: SIGHUP signal caught\nBye." << endl;
 432                 break;
 433 #endif
 434         case SIGFPE:
 435                 lyxerr << "\nlyx: SIGFPE signal caught\nBye." << endl;
 436                 break;
 437         case SIGSEGV:
 438                 lyxerr << "\nlyx: SIGSEGV signal caught\n"
 439                           "Sorry, you have found a bug in LyX. "
 440                           "Please read the bug-reporting instructions "
 441                           "in Help->Introduction and send us a bug report, "
 442                           "if necessary. Thanks !\nBye." << endl;
 443                 break;
 444         case SIGINT:
 445         case SIGTERM:
 446                 // no comments
 447                 break;
 448         }
 449
 450         // Deinstall the signal handlers
 451 #ifdef SIGHUP
 452         signal(SIGHUP, SIG_DFL);
 453 #endif
 454         signal(SIGINT, SIG_DFL);
 455         signal(SIGFPE, SIG_DFL);
 456         signal(SIGSEGV, SIG_DFL);
 457         signal(SIGTERM, SIG_DFL);
 458
 459 #ifdef SIGHUP
 460         if (err_sig == SIGSEGV ||
 461             (err_sig != SIGHUP && !getEnv("LYXDEBUG").empty()))
 462 #else
 463         if (err_sig == SIGSEGV || !getEnv("LYXDEBUG").empty())
 464 #endif
 465                 lyx::support::abort();
 466         exit(0);
 467 }
 468
 469 }
 470
 471
 472 void LyX::printError(ErrorItem const & ei)
 473 {
 474         docstring tmp = _("LyX: ") + ei.error + lyx::char_type(':')
 475                 + ei.description;
 476         std::cerr << lyx::to_utf8(tmp) << std::endl;
 477 }
 478
 479
 480 bool LyX::init()
 481 {
 482 #ifdef SIGHUP
 483         signal(SIGHUP, error_handler);
 484 #endif
 485         signal(SIGFPE, error_handler);
 486         signal(SIGSEGV, error_handler);
 487         signal(SIGINT, error_handler);
 488         signal(SIGTERM, error_handler);
 489         // SIGPIPE can be safely ignored.
 490
 491         lyxrc.tempdir_path = package().temp_dir();
 492         lyxrc.document_path = package().document_dir();
 493
 494         if (lyxrc.template_path.empty()) {
 495                 lyxrc.template_path = addPath(package().system_support(),
 496                                               "templates");
 497         }
 498
 499         if (lyxrc.roman_font_name.empty())
 500                 lyxrc.roman_font_name =
 501                         lyx_gui::use_gui? theApp->romanFontName(): "serif";
 502
 503         if (lyxrc.sans_font_name.empty())
 504                 lyxrc.sans_font_name =
 505                         lyx_gui::use_gui? theApp->sansFontName(): "sans";
 506
 507         if (lyxrc.typewriter_font_name.empty())
 508                 lyxrc.typewriter_font_name =
 509                         lyx_gui::use_gui? theApp->typewriterFontName(): "monospace";
 510
 511         //
 512         // Read configuration files
 513         //
 514
 515         // This one may have been distributed along with LyX.
 516         if (!readRcFile("lyxrc.dist"))
 517                 return false;
 518
 519         // Set the PATH correctly.
 520 #if !defined (USE_POSIX_PACKAGING)
 521         // Add the directory containing the LyX executable to the path
 522         // so that LyX can find things like tex2lyx.
 523         if (package().build_support().empty())
 524                 prependEnvPath("PATH", package().binary_dir());
 525 #endif
 526         if (!lyxrc.path_prefix.empty())
 527                 prependEnvPath("PATH", lyxrc.path_prefix);
 528
 529         // Check that user LyX directory is ok.
 530         if (queryUserLyXDir(package().explicit_user_support()))
 531                 reconfigureUserLyXDir();
 532
 533         // no need for a splash when there is no GUI
 534         if (!lyx_gui::use_gui) {
 535                 first_start = false;
 536         }
 537
 538         // This one is generated in user_support directory by lib/configure.py.
 539         if (!readRcFile("lyxrc.defaults"))
 540                 return false;
 541
 542         // Query the OS to know what formats are viewed natively
 543         formats.setAutoOpen();
 544
 545         system_lyxrc = lyxrc;
 546         system_formats = formats;
 547         system_converters = converters;
 548         system_movers = movers;
 549         system_lcolor = lcolor;
 550
 551         // This one is edited through the preferences dialog.
 552         if (!readRcFile("preferences"))
 553                 return false;
 554
 555         if (!readEncodingsFile("encodings"))
 556                 return false;
 557         if (!readLanguagesFile("languages"))
 558                 return false;
 559
 560         // Load the layouts
 561         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 562         if (!LyXSetStyle())
 563                 return false;
 564
 565         if (lyx_gui::use_gui) {
 566                 // Set up bindings
 567                 toplevel_keymap.reset(new kb_keymap);
 568                 defaultKeyBindings(toplevel_keymap.get());
 569                 toplevel_keymap->read(lyxrc.bind_file);
 570
 571                 // Read menus
 572                 if (!readUIFile(lyxrc.ui_file))
 573                         return false;
 574         }
 575
 576         if (lyxerr.debugging(Debug::LYXRC))
 577                 lyxrc.print();
 578
 579         os::windows_style_tex_paths(lyxrc.windows_style_tex_paths);
 580         if (!lyxrc.path_prefix.empty())
 581                 prependEnvPath("PATH", lyxrc.path_prefix);
 582
 583         if (fs::exists(lyxrc.document_path) &&
 584             fs::is_directory(lyxrc.document_path))
 585                 package().document_dir() = lyxrc.document_path;
 586
 587         package().temp_dir() = createLyXTmpDir(lyxrc.tempdir_path);
 588         if (package().temp_dir().empty()) {
 589                 Alert::error(_("Could not create temporary directory"),
 590                              bformat(_("Could not create a temporary directory in\n"
 591                                                     "%1$s. Make sure that this\n"
 592                                                     "path exists and is writable and try again."),
 593                                      lyx::from_utf8(lyxrc.tempdir_path)));
 594                 // createLyXTmpDir() tries sufficiently hard to create a
 595                 // usable temp dir, so the probability to come here is
 596                 // close to zero. We therefore don't try to overcome this
 597                 // problem with e.g. asking the user for a new path and
 598                 // trying again but simply exit.
 599                 return false;
 600         }
 601
 602         if (lyxerr.debugging(Debug::INIT)) {
 603                 lyxerr << "LyX tmp dir: `" << package().temp_dir() << '\'' << endl;
 604         }
 605
 606         lyxerr[Debug::INIT] << "Reading session information '.lyx/session'..." << endl;
 607         session_.reset(new lyx::Session(lyxrc.num_lastfiles));
 608         return true;
 609 }
 610
 611
 612 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 613 {
 614         kbmap->bind("Right", FuncRequest(LFUN_CHAR_FORWARD));
 615         kbmap->bind("Left", FuncRequest(LFUN_CHAR_BACKWARD));
 616         kbmap->bind("Up", FuncRequest(LFUN_UP));
 617         kbmap->bind("Down", FuncRequest(LFUN_DOWN));
 618
 619         kbmap->bind("Tab", FuncRequest(LFUN_CELL_FORWARD));
 620         kbmap->bind("C-Tab", FuncRequest(LFUN_CELL_SPLIT));
 621         kbmap->bind("~S-ISO_Left_Tab", FuncRequest(LFUN_CELL_BACKWARD));
 622         kbmap->bind("~S-BackTab", FuncRequest(LFUN_CELL_BACKWARD));
 623
 624         kbmap->bind("Home", FuncRequest(LFUN_LINE_BEGIN));
 625         kbmap->bind("End", FuncRequest(LFUN_LINE_END));
 626         kbmap->bind("Prior", FuncRequest(LFUN_SCREEN_UP));
 627         kbmap->bind("Next", FuncRequest(LFUN_SCREEN_DOWN));
 628
 629         kbmap->bind("Return", FuncRequest(LFUN_BREAK_PARAGRAPH));
 630         //kbmap->bind("~C-~S-~M-nobreakspace", FuncRequest(LFUN_PROTECTEDSPACE));
 631
 632         kbmap->bind("Delete", FuncRequest(LFUN_CHAR_DELETE_FORWARD));
 633         kbmap->bind("BackSpace", FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
 634
 635         // kbmap->bindings to enable the use of the numeric keypad
 636         // e.g. Num Lock set
 637         //kbmap->bind("KP_0", FuncRequest(LFUN_SELF_INSERT));
 638         //kbmap->bind("KP_Decimal", FuncRequest(LFUN_SELF_INSERT));
 639         kbmap->bind("KP_Enter", FuncRequest(LFUN_BREAK_PARAGRAPH));
 640         //kbmap->bind("KP_1", FuncRequest(LFUN_SELF_INSERT));
 641         //kbmap->bind("KP_2", FuncRequest(LFUN_SELF_INSERT));
 642         //kbmap->bind("KP_3", FuncRequest(LFUN_SELF_INSERT));
 643         //kbmap->bind("KP_4", FuncRequest(LFUN_SELF_INSERT));
 644         //kbmap->bind("KP_5", FuncRequest(LFUN_SELF_INSERT));
 645         //kbmap->bind("KP_6", FuncRequest(LFUN_SELF_INSERT));
 646         //kbmap->bind("KP_Add", FuncRequest(LFUN_SELF_INSERT));
 647         //kbmap->bind("KP_7", FuncRequest(LFUN_SELF_INSERT));
 648         //kbmap->bind("KP_8", FuncRequest(LFUN_SELF_INSERT));
 649         //kbmap->bind("KP_9", FuncRequest(LFUN_SELF_INSERT));
 650         //kbmap->bind("KP_Divide", FuncRequest(LFUN_SELF_INSERT));
 651         //kbmap->bind("KP_Multiply", FuncRequest(LFUN_SELF_INSERT));
 652         //kbmap->bind("KP_Subtract", FuncRequest(LFUN_SELF_INSERT));
 653         kbmap->bind("KP_Right", FuncRequest(LFUN_CHAR_FORWARD));
 654         kbmap->bind("KP_Left", FuncRequest(LFUN_CHAR_BACKWARD));
 655         kbmap->bind("KP_Up", FuncRequest(LFUN_UP));
 656         kbmap->bind("KP_Down", FuncRequest(LFUN_DOWN));
 657         kbmap->bind("KP_Home", FuncRequest(LFUN_LINE_BEGIN));
 658         kbmap->bind("KP_End", FuncRequest(LFUN_LINE_END));
 659         kbmap->bind("KP_Prior", FuncRequest(LFUN_SCREEN_UP));
 660         kbmap->bind("KP_Next", FuncRequest(LFUN_SCREEN_DOWN));
 661 }
 662
 663
 664 void LyX::emergencyCleanup() const
 665 {
 666         // what to do about tmpfiles is non-obvious. we would
 667         // like to delete any we find, but our lyxdir might
 668         // contain documents etc. which might be helpful on
 669         // a crash
 670
 671         theBufferList().emergencyWriteAll();
 672         theApp->server().emergencyCleanup();
 673 }
 674
 675
 676 void LyX::deadKeyBindings(kb_keymap * kbmap)
 677 {
 678         // bindKeyings for transparent handling of deadkeys
 679         // The keysyms are gotten from XFree86 X11R6
 680         kbmap->bind("~C-~S-~M-dead_acute", FuncRequest(LFUN_ACCENT_ACUTE));
 681         kbmap->bind("~C-~S-~M-dead_breve", FuncRequest(LFUN_ACCENT_BREVE));
 682         kbmap->bind("~C-~S-~M-dead_caron", FuncRequest(LFUN_ACCENT_CARON));
 683         kbmap->bind("~C-~S-~M-dead_cedilla", FuncRequest(LFUN_ACCENT_CEDILLA));
 684         kbmap->bind("~C-~S-~M-dead_abovering", FuncRequest(LFUN_ACCENT_CIRCLE));
 685         kbmap->bind("~C-~S-~M-dead_circumflex", FuncRequest(LFUN_ACCENT_CIRCUMFLEX));
 686         kbmap->bind("~C-~S-~M-dead_abovedot", FuncRequest(LFUN_ACCENT_DOT));
 687         kbmap->bind("~C-~S-~M-dead_grave", FuncRequest(LFUN_ACCENT_GRAVE));
 688         kbmap->bind("~C-~S-~M-dead_doubleacute", FuncRequest(LFUN_ACCENT_HUNGARIAN_UMLAUT));
 689         kbmap->bind("~C-~S-~M-dead_macron", FuncRequest(LFUN_ACCENT_MACRON));
 690         // nothing with this name
 691         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_ACCENT_SPECIAL_CARON);
 692         kbmap->bind("~C-~S-~M-dead_tilde", FuncRequest(LFUN_ACCENT_TILDE));
 693         kbmap->bind("~C-~S-~M-dead_diaeresis", FuncRequest(LFUN_ACCENT_UMLAUT));
 694         // nothing with this name either...
 695         //kbmap->bind("~C-~S-~M-dead_underbar", FuncRequest(LFUN_ACCENT_UNDERBAR));
 696         kbmap->bind("~C-~S-~M-dead_belowdot", FuncRequest(LFUN_ACCENT_UNDERDOT));
 697         kbmap->bind("~C-~S-~M-dead_tie", FuncRequest(LFUN_ACCENT_TIE));
 698         kbmap->bind("~C-~S-~M-dead_ogonek",FuncRequest(LFUN_ACCENT_OGONEK));
 699 }
 700
 701
 702 namespace {
 703
 704 // return true if file does not exist or is older than configure.py.
 705 bool needsUpdate(string const & file)
 706 {
 707         static string const configure_script =
 708                 addName(package().system_support(), "configure.py");
 709         string const absfile =
 710                 addName(package().user_support(), file);
 711
 712         return (! fs::exists(absfile))
 713                 || (fs::last_write_time(configure_script)
 714                     > fs::last_write_time(absfile));
 715 }
 716
 717 }
 718
 719
 720 bool LyX::queryUserLyXDir(bool explicit_userdir)
 721 {
 722         // Does user directory exist?
 723         if (fs::exists(package().user_support()) &&
 724             fs::is_directory(package().user_support())) {
 725                 first_start = false;
 726
 727                 return needsUpdate("lyxrc.defaults")
 728                         || needsUpdate("textclass.lst")
 729                         || needsUpdate("packages.lst");
 730         }
 731
 732         first_start = !explicit_userdir;
 733
 734         // If the user specified explicitly a directory, ask whether
 735         // to create it. If the user says "no", then exit.
 736         if (explicit_userdir &&
 737             Alert::prompt(
 738                     _("Missing user LyX directory"),
 739                     bformat(_("You have specified a non-existent user "
 740                                            "LyX directory, %1$s.\n"
 741                                            "It is needed to keep your own configuration."),
 742                             lyx::from_utf8(package().user_support())),
 743                     1, 0,
 744                     _("&Create directory"),
 745                     _("&Exit LyX"))) {
 746                 lyxerr << lyx::to_utf8(_("No user LyX directory. Exiting.")) << endl;
 747                 lyx_exit(EXIT_FAILURE);
 748         }
 749
 750         lyxerr << lyx::to_utf8(bformat(_("LyX: Creating directory %1$s"),
 751                           lyx::from_utf8(package().user_support())))
 752                << endl;
 753
 754         if (!createDirectory(package().user_support(), 0755)) {
 755                 // Failed, so let's exit.
 756                 lyxerr << lyx::to_utf8(_("Failed to create directory. Exiting."))
 757                        << endl;
 758                 lyx_exit(EXIT_FAILURE);
 759         }
 760
 761         return true;
 762 }
 763
 764
 765 bool LyX::readRcFile(string const & name)
 766 {
 767         lyxerr[Debug::INIT] << "About to read " << name << "... ";
 768
 769         string const lyxrc_path = libFileSearch(string(), name);
 770         if (!lyxrc_path.empty()) {
 771
 772                 lyxerr[Debug::INIT] << "Found in " << lyxrc_path << endl;
 773
 774                 if (lyxrc.read(lyxrc_path) < 0) {
 775                         showFileError(name);
 776                         return false;
 777                 }
 778         } else
 779                 lyxerr[Debug::INIT] << "Not found." << lyxrc_path << endl;
 780         return true;
 781
 782 }
 783
 784
 785 // Read the ui file `name'
 786 bool LyX::readUIFile(string const & name)
 787 {
 788         enum Uitags {
 789                 ui_menuset = 1,
 790                 ui_toolbar,
 791                 ui_toolbars,
 792                 ui_include,
 793                 ui_last
 794         };
 795
 796         struct keyword_item uitags[ui_last - 1] = {
 797                 { "include", ui_include },
 798                 { "menuset", ui_menuset },
 799                 { "toolbar", ui_toolbar },
 800                 { "toolbars", ui_toolbars }
 801         };
 802
 803         // Ensure that a file is read only once (prevents include loops)
 804         static std::list<string> uifiles;
 805         std::list<string>::const_iterator it  = uifiles.begin();
 806         std::list<string>::const_iterator end = uifiles.end();
 807         it = std::find(it, end, name);
 808         if (it != end) {
 809                 lyxerr[Debug::INIT] << "UI file '" << name
 810                                     << "' has been read already. "
 811                                     << "Is this an include loop?"
 812                                     << endl;
 813                 return false;
 814         }
 815
 816         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 817
 818         string const ui_path = libFileSearch("ui", name, "ui");
 819
 820         if (ui_path.empty()) {
 821                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 822                 showFileError(name);
 823                 return false;
 824         }
 825         uifiles.push_back(name);
 826
 827         lyxerr[Debug::INIT] << "Found " << name
 828                             << " in " << ui_path << endl;
 829         LyXLex lex(uitags, ui_last - 1);
 830         lex.setFile(ui_path);
 831         if (!lex.isOK()) {
 832                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 833                        << endl;
 834         }
 835
 836         if (lyxerr.debugging(Debug::PARSER))
 837                 lex.printTable(lyxerr);
 838
 839         while (lex.isOK()) {
 840                 switch (lex.lex()) {
 841                 case ui_include: {
 842                         lex.next(true);
 843                         string const file = lex.getString();
 844                         if (!readUIFile(file))
 845                                 return false;
 846                         break;
 847                 }
 848                 case ui_menuset:
 849                         menubackend.read(lex);
 850                         break;
 851
 852                 case ui_toolbar:
 853                         toolbarbackend.read(lex);
 854                         break;
 855
 856                 case ui_toolbars:
 857                         toolbarbackend.readToolbars(lex);
 858                         break;
 859
 860                 default:
 861                         if (!rtrim(lex.getString()).empty())
 862                                 lex.printError("LyX::ReadUIFile: "
 863                                                "Unknown menu tag: `$$Token'");
 864                         break;
 865                 }
 866         }
 867         return true;
 868 }
 869
 870
 871 // Read the languages file `name'
 872 bool LyX::readLanguagesFile(string const & name)
 873 {
 874         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 875
 876         string const lang_path = libFileSearch(string(), name);
 877         if (lang_path.empty()) {
 878                 showFileError(name);
 879                 return false;
 880         }
 881         languages.read(lang_path);
 882         return true;
 883 }
 884
 885
 886 // Read the encodings file `name'
 887 bool LyX::readEncodingsFile(string const & name)
 888 {
 889         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 890
 891         string const enc_path = libFileSearch(string(), name);
 892         if (enc_path.empty()) {
 893                 showFileError(name);
 894                 return false;
 895         }
 896         encodings.read(enc_path);
 897         return true;
 898 }
 899
 900
 901 namespace {
 902
 903 bool is_gui = true;
 904 string batch;
 905
 906 /// return the the number of arguments consumed
 907 typedef boost::function<int(string const &, string const &)> cmd_helper;
 908
 909 int parse_dbg(string const & arg, string const &)
 910 {
 911         if (arg.empty()) {
 912                 lyxerr << lyx::to_utf8(_("List of supported debug flags:")) << endl;
 913                 Debug::showTags(lyxerr);
 914                 exit(0);
 915         }
 916         lyxerr << lyx::to_utf8(bformat(_("Setting debug level to %1$s"), lyx::from_utf8(arg))) << endl;
 917
 918         lyxerr.level(Debug::value(arg));
 919         Debug::showLevel(lyxerr, lyxerr.level());
 920         return 1;
 921 }
 922
 923
 924 int parse_help(string const &, string const &)
 925 {
 926         lyxerr <<
 927                 lyx::to_utf8(_("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 928                   "Command line switches (case sensitive):\n"
 929                   "\t-help              summarize LyX usage\n"
 930                   "\t-userdir dir       set user directory to dir\n"
 931                   "\t-sysdir dir        set system directory to dir\n"
 932                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 933                   "\t-dbg feature[,feature]...\n"
 934                   "                  select the features to debug.\n"
 935                   "                  Type `lyx -dbg' to see the list of features\n"
 936                   "\t-x [--execute] command\n"
 937                   "                  where command is a lyx command.\n"
 938                   "\t-e [--export] fmt\n"
 939                   "                  where fmt is the export format of choice.\n"
 940                   "\t-i [--import] fmt file.xxx\n"
 941                   "                  where fmt is the import format of choice\n"
 942                   "                  and file.xxx is the file to be imported.\n"
 943                   "\t-version        summarize version and build info\n"
 944                                "Check the LyX man page for more details.")) << endl;
 945         exit(0);
 946         return 0;
 947 }
 948
 949 int parse_version(string const &, string const &)
 950 {
 951         lyxerr << "LyX " << lyx_version
 952                << " (" << lyx_release_date << ")" << endl;
 953         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 954
 955         lyxerr << lyx_version_info << endl;
 956         exit(0);
 957         return 0;
 958 }
 959
 960 int parse_sysdir(string const & arg, string const &)
 961 {
 962         if (arg.empty()) {
 963                 lyxerr << lyx::to_utf8(_("Missing directory for -sysdir switch")) << endl;
 964                 exit(1);
 965         }
 966         cl_system_support = arg;
 967         return 1;
 968 }
 969
 970 int parse_userdir(string const & arg, string const &)
 971 {
 972         if (arg.empty()) {
 973                 lyxerr << lyx::to_utf8(_("Missing directory for -userdir switch")) << endl;
 974                 exit(1);
 975         }
 976         cl_user_support = arg;
 977         return 1;
 978 }
 979
 980 int parse_execute(string const & arg, string const &)
 981 {
 982         if (arg.empty()) {
 983                 lyxerr << lyx::to_utf8(_("Missing command string after --execute switch")) << endl;
 984                 exit(1);
 985         }
 986         batch = arg;
 987         return 1;
 988 }
 989
 990 int parse_export(string const & type, string const &)
 991 {
 992         if (type.empty()) {
 993                 lyxerr << lyx::to_utf8(_("Missing file type [eg latex, ps...] after "
 994                                          "--export switch")) << endl;
 995                 exit(1);
 996         }
 997         batch = "buffer-export " + type;
 998         is_gui = false;
 999         return 1;
1000 }
1001
1002 int parse_import(string const & type, string const & file)
1003 {
1004         if (type.empty()) {
1005                 lyxerr << lyx::to_utf8(_("Missing file type [eg latex, ps...] after "
1006                                          "--import switch")) << endl;
1007                 exit(1);
1008         }
1009         if (file.empty()) {
1010                 lyxerr << lyx::to_utf8(_("Missing filename for --import")) << endl;
1011                 exit(1);
1012         }
1013
1014         batch = "buffer-import " + type + ' ' + file;
1015         return 2;
1016 }
1017
1018 } // namespace anon
1019
1020
1021 bool LyX::easyParse(int & argc, char * argv[])
1022 {
1023         std::map<string, cmd_helper> cmdmap;
1024
1025         cmdmap["-dbg"] = parse_dbg;
1026         cmdmap["-help"] = parse_help;
1027         cmdmap["--help"] = parse_help;
1028         cmdmap["-version"] = parse_version;
1029         cmdmap["--version"] = parse_version;
1030         cmdmap["-sysdir"] = parse_sysdir;
1031         cmdmap["-userdir"] = parse_userdir;
1032         cmdmap["-x"] = parse_execute;
1033         cmdmap["--execute"] = parse_execute;
1034         cmdmap["-e"] = parse_export;
1035         cmdmap["--export"] = parse_export;
1036         cmdmap["-i"] = parse_import;
1037         cmdmap["--import"] = parse_import;
1038
1039         for (int i = 1; i < argc; ++i) {
1040                 std::map<string, cmd_helper>::const_iterator it
1041                         = cmdmap.find(argv[i]);
1042
1043                 // check for X11 -geometry option
1044                 if (lyx::support::compare(argv[i], "-geometry") == 0)
1045                         geometryOption_ = true;
1046
1047                 // don't complain if not found - may be parsed later
1048                 if (it == cmdmap.end())
1049                         continue;
1050
1051                 string arg((i + 1 < argc) ? argv[i + 1] : "");
1052                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
1053
1054                 int const remove = 1 + it->second(arg, arg2);
1055
1056                 // Now, remove used arguments by shifting
1057                 // the following ones remove places down.
1058                 argc -= remove;
1059                 for (int j = i; j < argc; ++j)
1060                         argv[j] = argv[j + remove];
1061                 --i;
1062         }
1063
1064         batch_command = batch;
1065
1066         return is_gui;
1067 }