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