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