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