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