src/lyx_main.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12
  13 #include <cstdlib>
  14 #include <csignal>
  15
  16 #ifdef __GNUG__
  17 #pragma implementation
  18 #endif
  19
  20 #include "version.h"
  21 #include "lyx_main.h"
  22 #include "lyx_gui.h"
  23 #include "LyXView.h"
  24 #include "lyxfunc.h"
  25 #include "lyx_gui_misc.h"
  26 #include "lyxrc.h"
  27 #include "support/path.h"
  28 #include "support/filetools.h"
  29 #include "buffer.h"
  30 #include "bufferlist.h"
  31 #include "debug.h"
  32 #include "support/FileInfo.h"
  33 #include "lastfiles.h"
  34 #include "intl.h"
  35 #include "lyxserver.h"
  36 #include "layout.h"
  37 #include "gettext.h"
  38 #include "kbmap.h"
  39 #include "MenuBackend.h"
  40 #include "ToolbarDefaults.h"
  41 #include "lyxlex.h"
  42 #include "encoding.h"
  43 #include "converter.h"
  44 #include "language.h"
  45 #include "support/os.h"
  46
  47 using std::endl;
  48
  49 #ifndef CXX_GLOBAL_CSTD
  50 using std::signal;
  51 #endif
  52
  53 extern void LoadLyXFile(string const &);
  54 extern void QuitLyX();
  55
  56 string system_lyxdir;
  57 string build_lyxdir;
  58 string system_tempdir;
  59 string user_lyxdir;     // Default $HOME/.lyx
  60
  61 // Should this be kept global? Asger says Yes.
  62 DebugStream lyxerr;
  63
  64 LastFiles * lastfiles;
  65
  66 // This is the global bufferlist object
  67 BufferList bufferlist;
  68
  69 LyXServer * lyxserver = 0;
  70 // this should be static, but I need it in buffer.C
  71 bool finished = false;  // flag, that we are quitting the program
  72
  73 // convenient to have it here.
  74 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  75
  76
  77 LyX::LyX(int * argc, char * argv[])
  78 {
  79         // Prevent crash with --help
  80         lyxGUI = 0;
  81         lastfiles = 0;
  82
  83         // Here we need to parse the command line. At least
  84         // we need to parse for "-dbg" and "-help"
  85         bool gui = easyParse(argc, argv);
  86
  87         // Global bindings (this must be done as early as possible.) (Lgb)
  88         toplevel_keymap.reset(new kb_keymap);
  89         defaultKeyBindings(toplevel_keymap.get());
  90
  91         // Make the GUI object, and let it take care of the
  92         // command line arguments that concerns it.
  93         lyxerr[Debug::INIT] << "Initializing LyXGUI..." << endl;
  94         lyxGUI = new LyXGUI(this, argc, argv, gui);
  95         lyxerr[Debug::INIT] << "Initializing LyXGUI...done" << endl;
  96
  97         // Now the GUI and LyX have taken care of their arguments, so
  98         // the only thing left on the command line should be
  99         // filenames. Let's check anyway.
 100         for (int argi = 1; argi < *argc ; ++argi) {
 101                 if (argv[argi][0] == '-') {
 102                         lyxerr << _("Wrong command line option `")
 103                                << argv[argi]
 104                                << _("'. Exiting.") << endl;
 105                         exit(0);
 106                 }
 107         }
 108
 109         // Initialization of LyX (reads lyxrc and more)
 110         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 111         init(gui);
 112         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 113
 114         lyxGUI->init();
 115
 116         // Load the files specified in the command line.
 117         if ((*argc) == 2)
 118                 lyxerr[Debug::INFO] << "Opening document..." << endl;
 119         else if ((*argc) > 2)
 120                 lyxerr[Debug::INFO] << "Opening documents..." << endl;
 121
 122         Buffer * last_loaded = 0;
 123
 124         for (int argi = (*argc) - 1; argi >= 1; --argi) {
 125                 Buffer * loadb = bufferlist.loadLyXFile(argv[argi]);
 126                 if (loadb != 0) {
 127                         last_loaded = loadb;
 128                 }
 129         }
 130
 131         if (first_start) {
 132                 string splash = i18nLibFileSearch("examples", "splash.lyx");
 133                 lyxerr[Debug::INIT] << "Opening splash document "
 134                                << splash << "..." << endl;
 135                 Buffer * loadb = bufferlist.loadLyXFile(splash);
 136                 if (loadb != 0) {
 137                         last_loaded = loadb;
 138                 }
 139         }
 140
 141         if (last_loaded != 0) {
 142                 lyxerr[Debug::INIT] << "Yes we loaded some files." << endl;
 143                 if (lyxrc.use_gui)
 144                         lyxGUI->regBuf(last_loaded);
 145         }
 146
 147         // Execute batch commands if available
 148         if (!batch_command.empty()) {
 149                 lyxerr << "About to handle -x '"
 150                        << batch_command << "'" << endl;
 151
 152                 // no buffer loaded, create one
 153                 if (!last_loaded)
 154                         last_loaded = bufferlist.newFile("tmpfile", string());
 155
 156                 // try to dispatch to last loaded buffer first
 157                 bool dispatched = last_loaded->dispatch(batch_command);
 158
 159                 // if this was successful, return.
 160                 // Maybe we could do something more clever than aborting...
 161                 if (dispatched) {
 162                         lyxerr << "We are done!" << endl;
 163                         QuitLyX();
 164                         return;
 165                 }
 166
 167                 // otherwise, let the GUI handle the batch command
 168                 lyxGUI->regBuf(last_loaded);
 169                 lyxGUI->getLyXView()->getLyXFunc()->dispatch(batch_command);
 170
 171                 // fall through...
 172         }
 173
 174         // Let the ball begin...
 175         lyxGUI->runTime();
 176 }
 177
 178
 179 // A destructor is always necessary  (asierra-970604)
 180 LyX::~LyX()
 181 {
 182         delete lastfiles;
 183         delete lyxGUI;
 184 }
 185
 186
 187 extern "C" void error_handler(int err_sig);
 188
 189 void LyX::init(bool gui)
 190 {
 191         // Install the signal handlers
 192         signal(SIGHUP, error_handler);
 193         signal(SIGFPE, error_handler);
 194         signal(SIGSEGV, error_handler);
 195         signal(SIGINT, error_handler);
 196         signal(SIGTERM, error_handler);
 197
 198         //
 199         // Determine path of binary
 200         //
 201
 202         string fullbinpath;
 203         string binpath = os::binpath();
 204         string binname = os::binname();
 205         fullbinpath = binpath;
 206
 207         if (binpath.empty()) {
 208                 lyxerr << _("Warning: could not determine path of binary.")
 209                        << "\n"
 210                        << _("If you have problems, try starting LyX with an absolute path.")
 211                        << endl;
 212         }
 213         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 214
 215         //
 216         // Determine system directory.
 217         //
 218
 219         // Directories are searched in this order:
 220         // 1) -sysdir command line parameter
 221         // 2) LYX_DIR_11x environment variable
 222         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 223         // 4) <path of binary>/../share/<name of binary>/
 224         // 4a) repeat 4 after following the Symlink if <path of
 225         //     binary> is a symbolic link.
 226         // 5) hardcoded lyx_dir
 227         // The directory is checked for the presence of the file
 228         // "chkconfig.ltx", and if that is present, the directory
 229         // is accepted as the system directory.
 230         // If no chkconfig.ltx file is found, a warning is given,
 231         // and the hardcoded lyx_dir is used.
 232
 233         // If we had a command line switch, system_lyxdir is already set
 234         string searchpath;
 235         if (!system_lyxdir.empty())
 236                 searchpath= MakeAbsPath(system_lyxdir) + ';';
 237
 238         // LYX_DIR_11x environment variable
 239         string const lyxdir = GetEnvPath("LYX_DIR_11x");
 240
 241         if (!lyxdir.empty()) {
 242                 lyxerr[Debug::INIT] << "LYX_DIR_11x: " << lyxdir << endl;
 243                 searchpath += lyxdir + ';';
 244         }
 245
 246         // <path of binary>/TOP_SRCDIR/lib
 247         build_lyxdir = MakeAbsPath("../lib", binpath);
 248         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 249                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 250                                           binpath) + ';';
 251                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 252                         "place... yes" << endl;
 253         } else {
 254                 lyxerr[Debug::INIT]
 255                         << "Checking whether LyX is run in place... no"
 256                         << endl;
 257                 build_lyxdir.erase();
 258         }
 259
 260         bool followlink;
 261         do {
 262           // Path of binary/../share/name of binary/
 263                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 264                       OnlyFilename(binname)) + ';';
 265
 266           // Follow Symlinks
 267                 FileInfo file(fullbinpath, true);
 268                 followlink = file.isLink();
 269                 if (followlink) {
 270                         string link;
 271                         if (LyXReadLink(fullbinpath, link)) {
 272                                 fullbinpath = link;
 273                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 274                         }
 275                         else {
 276                                 followlink = false;
 277                         }
 278                 }
 279         } while (followlink);
 280
 281         // Hardcoded dir
 282         searchpath += LYX_DIR;
 283
 284         // If debugging, show complete search path
 285         lyxerr[Debug::INIT] << "System directory search path: "
 286                             << searchpath << endl;
 287
 288         string const filename = "chkconfig.ltx";
 289         string temp = FileOpenSearch(searchpath, filename, string());
 290         system_lyxdir = OnlyPath(temp);
 291
 292         // Reduce "path/../path" stuff out of system directory
 293         system_lyxdir = NormalizePath(system_lyxdir);
 294
 295         bool path_shown = false;
 296
 297         // Warn if environment variable is set, but unusable
 298         if (!lyxdir.empty()) {
 299                 if (system_lyxdir != NormalizePath(lyxdir)) {
 300                         lyxerr <<_("LYX_DIR_11x environment variable no good.")
 301                                << '\n'
 302                                << _("System directory set to: ")
 303                                << system_lyxdir << endl;
 304                         path_shown = true;
 305                 }
 306         }
 307
 308         // Warn the user if we couldn't find "chkconfig.ltx"
 309         if (system_lyxdir == "./") {
 310                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 311                        <<_("Try the '-sysdir' command line parameter or ")
 312                        <<_("set the environment variable LYX_DIR_11x to the "
 313                            "LyX system directory ")
 314                        << _("containing the file `chkconfig.ltx'.") << endl;
 315                 if (!path_shown) {
 316                         FileInfo fi(LYX_DIR);
 317                         if (!fi.exist()) {
 318                                 lyxerr << "Couldn't even find the default LYX_DIR." << endl
 319                                         << "Giving up." << endl;
 320                                 exit(1);
 321                         }
 322                         lyxerr << _("Using built-in default ")
 323                                << LYX_DIR << _(" but expect problems.")
 324                                << endl;
 325                 } else {
 326                         lyxerr << _("Expect problems.") << endl;
 327                 }
 328                 system_lyxdir = LYX_DIR;
 329                 path_shown = true;
 330         }
 331
 332         // Report the system directory if debugging is on
 333         if (!path_shown)
 334                 lyxerr[Debug::INIT] << "System directory: '"
 335                                     << system_lyxdir << '\'' << endl;
 336
 337         //
 338         // Determine user lyx-dir
 339         //
 340
 341         // Directories are searched in this order:
 342         // 1) -userdir command line parameter
 343         // 2) LYX_USERDIR_11x environment variable
 344         // 3) $HOME/.<name of binary>
 345
 346         // If we had a command line switch, user_lyxdir is already set
 347         bool explicit_userdir = true;
 348         if (user_lyxdir.empty()) {
 349
 350                 // LYX_USERDIR_11x environment variable
 351                 user_lyxdir = GetEnvPath("LYX_USERDIR_11x");
 352
 353                 // default behaviour
 354                 if (user_lyxdir.empty())
 355                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 356                                                         string(".") + PACKAGE);
 357                         explicit_userdir = false;
 358         }
 359
 360         lyxerr[Debug::INIT] << "User LyX directory: '"
 361                             <<  user_lyxdir << '\'' << endl;
 362
 363         // Check that user LyX directory is ok. We don't do that if
 364         // running in batch mode.
 365         if (gui)
 366                 queryUserLyXDir(explicit_userdir);
 367         else
 368                 first_start = false;
 369
 370         //
 371         // Shine up lyxrc defaults
 372         //
 373
 374         // Default template path: system_dir/templates
 375         if (lyxrc.template_path.empty()){
 376                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 377         }
 378
 379         // Default lastfiles file: $HOME/.lyx/lastfiles
 380         if (lyxrc.lastfiles.empty()){
 381                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 382         }
 383
 384         // Disable gui when either lyxrc or easyparse says so
 385         if (!gui)
 386                 lyxrc.use_gui = false;
 387
 388         // Calculate screen dpi as average of x-DPI and y-DPI:
 389         if (lyxrc.use_gui) {
 390                 lyxrc.dpi = getScreenDPI();
 391                 lyxerr[Debug::INIT] << "DPI setting detected to be "
 392                                                 << lyxrc.dpi + 0.5 << endl;
 393         } else {
 394                 lyxrc.dpi = 1; // I hope this is safe
 395         }
 396
 397         //
 398         // Read configuration files
 399         //
 400
 401         readRcFile("lyxrc.defaults");
 402         system_lyxrc = lyxrc;
 403         system_formats = formats;
 404         system_converters = converters;
 405         system_lcolor = lcolor;
 406
 407         // If there is a preferences file we read that instead
 408         // of the old lyxrc file.
 409         if (!readRcFile("preferences"))
 410             readRcFile("lyxrc");
 411
 412         // Read encodings
 413         readEncodingsFile("encodings");
 414         // Read languages
 415         readLanguagesFile("languages");
 416
 417         // Load the layouts
 418         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 419         LyXSetStyle();
 420
 421         // Ensure that we have really read a bind file, so that LyX is
 422         // usable.
 423         lyxrc.readBindFileIfNeeded();
 424
 425         // Read menus
 426         readUIFile(lyxrc.ui_file);
 427
 428         // Bind the X dead keys to the corresponding LyX functions if
 429         // necessary.
 430         if (lyxrc.override_x_deadkeys)
 431                 deadKeyBindings(toplevel_keymap.get());
 432
 433         if (lyxerr.debugging(Debug::LYXRC)) {
 434                 lyxrc.print();
 435         }
 436
 437         // Create temp directory
 438         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 439         system_tempdir = os::getTmpDir();
 440         if (lyxerr.debugging(Debug::INIT)) {
 441                 lyxerr << "LyX tmp dir: `" << system_tempdir << '\'' << endl;
 442         }
 443
 444         // load the lastfiles mini-database
 445         lyxerr[Debug::INIT] << "Reading lastfiles `"
 446                             << lyxrc.lastfiles << "'..." << endl;
 447         lastfiles = new LastFiles(lyxrc.lastfiles,
 448                                   lyxrc.check_lastfiles,
 449                                   lyxrc.num_lastfiles);
 450
 451         // start up the lyxserver. (is this a bit early?) (Lgb)
 452         // 0.12 this will be way to early, we need the GUI to be initialized
 453         // first, so move it for now.
 454         // lyxserver = new LyXServer;
 455 }
 456
 457
 458 // These are the default bindings known to LyX
 459 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 460 {
 461         kbmap->bind("Right", LFUN_RIGHT);
 462         kbmap->bind("Left", LFUN_LEFT);
 463         kbmap->bind("Up", LFUN_UP);
 464         kbmap->bind("Down", LFUN_DOWN);
 465
 466         kbmap->bind("Tab", LFUN_TAB);
 467         kbmap->bind("ISO_Left_Tab", LFUN_TAB); // jbl 2001-23-02
 468
 469         kbmap->bind("Home", LFUN_HOME);
 470         kbmap->bind("End", LFUN_END);
 471         kbmap->bind("Prior", LFUN_PRIOR);
 472         kbmap->bind("Next", LFUN_NEXT);
 473
 474         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 475         //kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 476
 477         kbmap->bind("Delete", LFUN_DELETE);
 478         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 479
 480         // kbmap->bindings to enable the use of the numeric keypad
 481         // e.g. Num Lock set
 482         //kbmap->bind("KP_0", LFUN_SELFINSERT);
 483         //kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 484         kbmap->bind("KP_Enter", LFUN_BREAKPARAGRAPH);
 485         //kbmap->bind("KP_1", LFUN_SELFINSERT);
 486         //kbmap->bind("KP_2", LFUN_SELFINSERT);
 487         //kbmap->bind("KP_3", LFUN_SELFINSERT);
 488         //kbmap->bind("KP_4", LFUN_SELFINSERT);
 489         //kbmap->bind("KP_5", LFUN_SELFINSERT);
 490         //kbmap->bind("KP_6", LFUN_SELFINSERT);
 491         //kbmap->bind("KP_Add", LFUN_SELFINSERT);
 492         //kbmap->bind("KP_7", LFUN_SELFINSERT);
 493         //kbmap->bind("KP_8", LFUN_SELFINSERT);
 494         //kbmap->bind("KP_9", LFUN_SELFINSERT);
 495         //kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 496         //kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 497         //kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 498         kbmap->bind("KP_Right", LFUN_RIGHT);
 499         kbmap->bind("KP_Left", LFUN_LEFT);
 500         kbmap->bind("KP_Up", LFUN_UP);
 501         kbmap->bind("KP_Down", LFUN_DOWN);
 502         kbmap->bind("KP_Home", LFUN_HOME);
 503         kbmap->bind("KP_End", LFUN_END);
 504         kbmap->bind("KP_Prior", LFUN_PRIOR);
 505         kbmap->bind("KP_Next", LFUN_NEXT);
 506
 507         kbmap->bind("C-Tab", LFUN_TABINSERT);  // ale970515
 508         kbmap->bind("S-Tab", LFUN_SHIFT_TAB);  // jug20000522
 509         kbmap->bind("S-ISO_Left_Tab", LFUN_SHIFT_TAB); // jbl 2001-23-02
 510 }
 511
 512
 513 // LyX can optionally take over the handling of deadkeys
 514 void LyX::deadKeyBindings(kb_keymap * kbmap)
 515 {
 516         // bindKeyings for transparent handling of deadkeys
 517         // The keysyms are gotten from XFree86 X11R6
 518         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 519         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 520         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 521         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 522         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 523         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 524         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 525         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 526         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 527         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 528         // nothing with this name
 529         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 530         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 531         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 532         // nothing with this name either...
 533         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 534         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 535         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 536         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 537 }
 538
 539
 540 // This one is not allowed to use anything on the main form, since that
 541 // one does not exist yet. (Asger)
 542 void LyX::queryUserLyXDir(bool explicit_userdir)
 543 {
 544         // Does user directory exist?
 545         FileInfo fileInfo(user_lyxdir);
 546         if (fileInfo.isOK() && fileInfo.isDir()) {
 547                 first_start = false;
 548                 return;
 549         } else {
 550                 first_start = !explicit_userdir;
 551         }
 552
 553         // If the user specified explicitely a directory, ask whether
 554         // to create it (otherwise, always create it)
 555         if (explicit_userdir &&
 556             !AskQuestion(_("You have specified an invalid LyX directory."),
 557                          _("It is needed to keep your own configuration."),
 558                          _("Should I try to set it up for you (recommended)?"))) {
 559                 lyxerr << _("Running without personal LyX directory.") << endl;
 560                 // No, let's use $HOME instead.
 561                 user_lyxdir = GetEnvPath("HOME");
 562                 return;
 563         }
 564
 565         // Tell the user what is going on
 566         lyxerr << _("LyX: Creating directory ") << user_lyxdir
 567                << _(" and running configure...") << endl;
 568
 569         // Create directory structure
 570         if (!createDirectory(user_lyxdir, 0755)) {
 571                 // Failed, let's use $HOME instead.
 572                 user_lyxdir = GetEnvPath("HOME");
 573                 lyxerr << _("Failed. Will use ") << user_lyxdir
 574                        << _(" instead.") << endl;
 575                 return;
 576         }
 577
 578         // Run configure in user lyx directory
 579         Path p(user_lyxdir);
 580         ::system(AddName(system_lyxdir, "configure").c_str());
 581         lyxerr << "LyX: " << _("Done!") << endl;
 582 }
 583
 584
 585 // Read the rc file `name'
 586 bool LyX::readRcFile(string const & name)
 587 {
 588         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 589
 590         string lyxrc_path = LibFileSearch(string(), name);
 591         if (!lyxrc_path.empty()){
 592                 lyxerr[Debug::INIT] << "Found " << name
 593                                     << " in " << lyxrc_path << endl;
 594                 if (lyxrc.read(lyxrc_path) < 0) {
 595                         WriteAlert(_("LyX Warning!"),
 596                                    _("Error while reading ") + lyxrc_path + ".",
 597                                    _("Using built-in defaults."));
 598                         return false;
 599                 }
 600                 return true;
 601         } else
 602                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 603         return false;
 604 }
 605
 606
 607 // Read the ui file `name'
 608 void LyX::readUIFile(string const & name)
 609 {
 610         enum Uitags {
 611                 ui_menuset = 1,
 612                 ui_toolbar,
 613                 ui_last
 614         };
 615
 616         struct keyword_item uitags[ui_last-1] = {
 617                 { "menuset", ui_menuset },
 618                 { "toolbar", ui_toolbar }
 619         };
 620
 621         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 622
 623         string ui_path = LibFileSearch("ui", name, "ui");
 624
 625         if (ui_path.empty()) {
 626                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 627                 menubackend.defaults();
 628                 return;
 629         }
 630
 631         lyxerr[Debug::INIT] << "Found " << name
 632                             << " in " << ui_path << endl;
 633         LyXLex lex(uitags, ui_last - 1);
 634         lex.setFile(ui_path);
 635         if (!lex.IsOK()) {
 636                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 637                        << endl;
 638         }
 639
 640         if (lyxerr.debugging(Debug::PARSER))
 641                 lex.printTable(lyxerr);
 642
 643         while (lex.IsOK()) {
 644                 switch (lex.lex()) {
 645                 case ui_menuset:
 646                         menubackend.read(lex);
 647                         break;
 648
 649                 case ui_toolbar:
 650                         toolbardefaults.read(lex);
 651                         break;
 652
 653                 default:
 654                         if(!strip(lex.GetString()).empty())
 655                                 lex.printError("LyX::ReadUIFile: "
 656                                                "Unknown menu tag: `$$Token'");
 657                         break;
 658                 }
 659         }
 660 }
 661
 662
 663 // Read the languages file `name'
 664 void LyX::readLanguagesFile(string const & name)
 665 {
 666         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 667
 668         string lang_path = LibFileSearch(string(), name);
 669         if (lang_path.empty()) {
 670                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 671                 languages.setDefaults();
 672                 return;
 673         }
 674         languages.read(lang_path);
 675 }
 676
 677
 678 // Read the encodings file `name'
 679 void LyX::readEncodingsFile(string const & name)
 680 {
 681         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 682
 683         string enc_path = LibFileSearch(string(), name);
 684         if (enc_path.empty()) {
 685                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 686                 return;
 687         }
 688         encodings.read(enc_path);
 689 }
 690
 691
 692 namespace {
 693
 694 // Set debugging level and report result to user
 695 void setDebuggingLevel(string const & dbgLevel)
 696 {
 697         lyxerr << _("Setting debug level to ") <<  dbgLevel << endl;
 698         lyxerr.level(Debug::value(dbgLevel));
 699         Debug::showLevel(lyxerr, lyxerr.level());
 700 }
 701
 702
 703 // Give command line help
 704 void commandLineHelp()
 705 {
 706         lyxerr << "LyX " LYX_VERSION << " of " LYX_RELEASE << endl;
 707         lyxerr <<
 708                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 709                   "Command line switches (case sensitive):\n"
 710                   "\t-help              summarize LyX usage\n"
 711                   "\t-userdir dir       try to set user directory to dir\n"
 712                   "\t-sysdir dir        try to set system directory to dir\n"
 713                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 714                   "\t-dbg feature[,feature]...\n"
 715                   "                  select the features to debug.\n"
 716                   "                  Type `lyx -dbg' to see the list of features\n"
 717                   "\t-x [--execute] command\n"
 718                   "                  where command is a lyx command.\n"
 719                   "\t-e [--export] fmt\n"
 720                   "                  where fmt is the export format of choice.\n"
 721                   "\t-i [--import] fmt file.xxx\n"
 722                   "                  where fmt is the import format of choice\n"
 723                   "                  and file.xxx is the file to be imported.\n"
 724                   "Check the LyX man page for more details.") << endl;
 725 }
 726
 727 } // namespace anon
 728
 729
 730 bool LyX::easyParse(int * argc, char * argv[])
 731 {
 732         bool gui = true;
 733         int removeargs = 0; // used when options are read
 734         for (int i = 1; i < *argc; ++i) {
 735                 string arg = argv[i];
 736
 737                 // Check for -dbg int
 738                 if (arg == "-dbg") {
 739                         if (i + 1 < *argc) {
 740                                 setDebuggingLevel(argv[i + 1]);
 741                                 removeargs = 2;
 742                         } else {
 743                                 lyxerr << _("List of supported debug flags:")
 744                                        << endl;
 745                                 Debug::showTags(lyxerr);
 746                                 exit(0);
 747                         }
 748                 }
 749                 // Check for "-sysdir"
 750                 else if (arg == "-sysdir") {
 751                         if (i + 1 < *argc) {
 752                                 system_lyxdir = argv[i + 1];
 753                                 removeargs = 2;
 754                         } else {
 755                                 lyxerr << _("Missing directory for -sysdir switch!")
 756                                        << endl;
 757                                 exit(0);
 758                         }
 759                 }
 760                 // Check for "-userdir"
 761                 else if (arg == "-userdir") {
 762                         if (i + 1 < *argc) {
 763                                 user_lyxdir = argv[i + 1];
 764                                 removeargs = 2;
 765                         } else {
 766                                 lyxerr << _("Missing directory for -userdir switch!")
 767                                        << endl;
 768                                 exit(0);
 769                         }
 770                 }
 771                 // Check for --help or -help
 772                 else if (arg == "--help" || arg == "-help") {
 773                         commandLineHelp();
 774                         exit(0);
 775                 }
 776                 // Check for "-nw": No XWindows as for emacs this should
 777                 // give a LyX that could be used in a terminal window.
 778                 //else if (arg == "-nw") {
 779                 //      gui = false;
 780                 //}
 781
 782                 // Check for "-x": Execute commands
 783                 else if (arg == "-x" || arg == "--execute") {
 784                         if (i + 1 < *argc) {
 785                                 batch_command = string(argv[i + 1]);
 786                                 removeargs = 2;
 787                         }
 788                         else
 789                                 lyxerr << _("Missing command string after  -x switch!") << endl;
 790
 791                         // Argh. Setting gui to false segfaults..
 792                         //gui = false;
 793                 }
 794
 795                 else if (arg == "-e" || arg == "--export") {
 796                         if (i + 1 < *argc) {
 797                                 string type(argv[i+1]);
 798                                 removeargs = 2;
 799                                 batch_command = "buffer-export " + type;
 800                                 gui = false;
 801                         } else
 802                                 lyxerr << _("Missing file type [eg latex, "
 803                                             "ps...] after ")
 804                                        << arg << _(" switch!") << endl;
 805                 }
 806                 else if (arg == "-i" || arg == "--import") {
 807                         if (i + 1 < *argc) {
 808                                 string type(argv[i+1]);
 809                                 string file(argv[i+2]);
 810                                 removeargs = 3;
 811
 812                                 batch_command = "buffer-import " + type + " " + file;
 813                                 lyxerr << "batch_command: "
 814                                        << batch_command << endl;
 815
 816                         } else
 817                                 lyxerr << _("Missing type [eg latex, "
 818                                             "ps...] after ")
 819                                        << arg << _(" switch!") << endl;
 820                 }
 821
 822                 if (removeargs > 0) {
 823                         // Now, remove used arguments by shifting
 824                         // the following ones removeargs places down.
 825                         (*argc) -= removeargs;
 826                         for (int j = i; j < (*argc); ++j)
 827                                 argv[j] = argv[j + removeargs];
 828                         --i; // After shift, check this number again.
 829                         removeargs = 0;
 830                 }
 831
 832         }
 833
 834         return gui;
 835 }
 836
 837
 838 extern "C"
 839 void error_handler(int err_sig)
 840 {
 841         switch (err_sig) {
 842         case SIGHUP:
 843                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 844                 break;
 845         case SIGINT:
 846                 // no comments
 847                 break;
 848         case SIGFPE:
 849                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 850                 break;
 851         case SIGSEGV:
 852                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 853                 lyxerr <<
 854                         "Sorry, you have found a bug in LyX."
 855                         " If possible, please read 'Known bugs'\n"
 856                         "under the Help menu and then send us "
 857                         "a full bug report. Thanks!" << endl;
 858                 break;
 859         case SIGTERM:
 860                 // no comments
 861                 break;
 862         }
 863
 864         // Deinstall the signal handlers
 865         signal(SIGHUP, SIG_DFL);
 866         signal(SIGINT, SIG_DFL);
 867         signal(SIGFPE, SIG_DFL);
 868         signal(SIGSEGV, SIG_DFL);
 869         signal(SIGTERM, SIG_DFL);
 870
 871         bufferlist.emergencyWriteAll();
 872
 873         lyxerr << "Bye." << endl;
 874         if (err_sig!= SIGHUP &&
 875            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 876                 lyx::abort();
 877         exit(0);
 878 }