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 "bufferlist.h"
  30 #include "debug.h"
  31 #include "support/FileInfo.h"
  32 #include "lastfiles.h"
  33 #include "intl.h"
  34 #include "lyxserver.h"
  35 #include "layout.h"
  36 #include "gettext.h"
  37 #include "kbmap.h"
  38 #include "MenuBackend.h"
  39 #include "ToolbarDefaults.h"
  40 #include "lyxlex.h"
  41 #include "encoding.h"
  42 #include "converter.h"
  43 #include "language.h"
  44 #include "support/os.h"
  45 // for NO_LATEX
  46 #if 1
  47 #include "lyxfont.h"
  48 #endif
  49
  50 using std::endl;
  51
  52 #ifndef CXX_GLOBAL_CSTD
  53 using std::signal;
  54 #endif
  55
  56 extern void LoadLyXFile(string const &);
  57 extern void QuitLyX();
  58
  59 string system_lyxdir;
  60 string build_lyxdir;
  61 string system_tempdir;
  62 string user_lyxdir;     // Default $HOME/.lyx
  63
  64 // Should this be kept global? Asger says Yes.
  65 DebugStream lyxerr;
  66
  67 LastFiles * lastfiles;
  68
  69 // This is the global bufferlist object
  70 BufferList bufferlist;
  71
  72 LyXServer * lyxserver = 0;
  73 // this should be static, but I need it in buffer.C
  74 bool finished = false;  // flag, that we are quitting the program
  75
  76 // convenient to have it here.
  77 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  78
  79
  80 LyX::LyX(int * argc, char * argv[])
  81 {
  82         // Prevent crash with --help
  83         lyxGUI = 0;
  84         lastfiles = 0;
  85
  86         // Here we need to parse the command line. At least
  87         // we need to parse for "-dbg" and "-help"
  88         bool gui = easyParse(argc, argv);
  89
  90         // Global bindings (this must be done as early as possible.) (Lgb)
  91         toplevel_keymap.reset(new kb_keymap);
  92         defaultKeyBindings(toplevel_keymap.get());
  93
  94         // Make the GUI object, and let it take care of the
  95         // command line arguments that concerns it.
  96         lyxerr[Debug::INIT] << "Initializing LyXGUI..." << endl;
  97         lyxGUI = new LyXGUI(this, argc, argv, gui);
  98         lyxerr[Debug::INIT] << "Initializing LyXGUI...done" << endl;
  99
 100         // Now the GUI and LyX have taken care of their arguments, so
 101         // the only thing left on the command line should be
 102         // filenames. Let's check anyway.
 103         for (int argi = 1; argi < *argc ; ++argi) {
 104                 if (argv[argi][0] == '-') {
 105                         lyxerr << _("Wrong command line option `")
 106                                << argv[argi]
 107                                << _("'. Exiting.") << endl;
 108                         exit(0);
 109                 }
 110         }
 111
 112         // Initialization of LyX (reads lyxrc and more)
 113         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 114         init(gui);
 115         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 116
 117         lyxGUI->init();
 118
 119         // Load the files specified in the command line.
 120         if ((*argc) == 2)
 121                 lyxerr[Debug::INFO] << "Opening document..." << endl;
 122         else if ((*argc) > 2)
 123                 lyxerr[Debug::INFO] << "Opening documents..." << endl;
 124
 125         Buffer * last_loaded = 0;
 126
 127         for (int argi = (*argc) - 1; argi >= 1; --argi) {
 128                 Buffer * loadb = bufferlist.loadLyXFile(argv[argi]);
 129                 if (loadb != 0) {
 130                         last_loaded = loadb;
 131                 }
 132         }
 133
 134         if (first_start) {
 135                 string splash = i18nLibFileSearch("examples", "splash.lyx");
 136                 lyxerr[Debug::INIT] << "Opening splash document "
 137                                << splash << "..." << endl;
 138                 Buffer * loadb = bufferlist.loadLyXFile(splash);
 139                 if (loadb != 0) {
 140                         last_loaded = loadb;
 141                 }
 142         }
 143
 144         if (last_loaded != 0) {
 145                 lyxerr[Debug::INIT] << "Yes we loaded some files." << endl;
 146                 if (lyxrc.use_gui)
 147                         lyxGUI->regBuf(last_loaded);
 148         }
 149
 150         // Execute batch commands if available
 151         if (!batch_command.empty()) {
 152                 lyxerr << "About to handle -x '"
 153                        << batch_command << "'" << endl;
 154
 155                 // no buffer loaded, create one
 156                 if (!last_loaded)
 157                         last_loaded = bufferlist.newFile("tmpfile", string());
 158
 159                 // try to dispatch to last loaded buffer first
 160                 bool dispatched = last_loaded->dispatch(batch_command);
 161
 162                 // if this was successful, return.
 163                 // Maybe we could do something more clever than aborting...
 164                 if (dispatched) {
 165                         lyxerr << "We are done!" << endl;
 166                         QuitLyX();
 167                         return;
 168                 }
 169
 170                 // otherwise, let the GUI handle the batch command
 171                 lyxGUI->regBuf(last_loaded);
 172                 lyxGUI->getLyXView()->getLyXFunc()->dispatch(batch_command);
 173
 174                 // fall through...
 175         }
 176
 177         // Let the ball begin...
 178         lyxGUI->runTime();
 179 }
 180
 181
 182 // A destructor is always necessary  (asierra-970604)
 183 LyX::~LyX()
 184 {
 185         delete lastfiles;
 186         delete lyxGUI;
 187 }
 188
 189
 190 extern "C" void error_handler(int err_sig);
 191
 192 void LyX::init(bool gui)
 193 {
 194         // Install the signal handlers
 195         signal(SIGHUP, error_handler);
 196         signal(SIGFPE, error_handler);
 197         signal(SIGSEGV, error_handler);
 198         signal(SIGINT, error_handler);
 199         signal(SIGTERM, error_handler);
 200
 201         //
 202         // Determine path of binary
 203         //
 204
 205         string fullbinpath;
 206         string binpath = os::binpath();
 207         string binname = os::binname();
 208         fullbinpath = binpath;
 209
 210         if (binpath.empty()) {
 211                 lyxerr << _("Warning: could not determine path of binary.")
 212                        << "\n"
 213                        << _("If you have problems, try starting LyX with an absolute path.")
 214                        << endl;
 215         }
 216         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 217
 218         //
 219         // Determine system directory.
 220         //
 221
 222         // Directories are searched in this order:
 223         // 1) -sysdir command line parameter
 224         // 2) LYX_DIR_11x environment variable
 225         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 226         // 4) <path of binary>/../share/<name of binary>/
 227         // 4a) repeat 4 after following the Symlink if <path of
 228         //     binary> is a symbolic link.
 229         // 5) hardcoded lyx_dir
 230         // The directory is checked for the presence of the file
 231         // "chkconfig.ltx", and if that is present, the directory
 232         // is accepted as the system directory.
 233         // If no chkconfig.ltx file is found, a warning is given,
 234         // and the hardcoded lyx_dir is used.
 235
 236         // If we had a command line switch, system_lyxdir is already set
 237         string searchpath;
 238         if (!system_lyxdir.empty())
 239                 searchpath= MakeAbsPath(system_lyxdir) + ';';
 240
 241         // LYX_DIR_11x environment variable
 242         string const lyxdir = GetEnvPath("LYX_DIR_11x");
 243
 244         if (!lyxdir.empty()) {
 245                 lyxerr[Debug::INIT] << "LYX_DIR_11x: " << lyxdir << endl;
 246                 searchpath += lyxdir + ';';
 247         }
 248
 249         // <path of binary>/TOP_SRCDIR/lib
 250         build_lyxdir = MakeAbsPath("../lib", binpath);
 251         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 252                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 253                                           binpath) + ';';
 254                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 255                         "place... yes" << endl;
 256         } else {
 257                 lyxerr[Debug::INIT]
 258                         << "Checking whether LyX is run in place... no"
 259                         << endl;
 260                 build_lyxdir.erase();
 261         }
 262
 263         bool followlink;
 264         do {
 265           // Path of binary/../share/name of binary/
 266                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 267                       OnlyFilename(binname)) + ';';
 268
 269           // Follow Symlinks
 270                 FileInfo file(fullbinpath, true);
 271                 followlink = file.isLink();
 272                 if (followlink) {
 273                         string link;
 274                         if (LyXReadLink(fullbinpath, link)) {
 275                                 fullbinpath = link;
 276                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 277                         }
 278                         else {
 279                                 followlink = false;
 280                         }
 281                 }
 282         } while (followlink);
 283
 284         // Hardcoded dir
 285         searchpath += LYX_DIR;
 286
 287         // If debugging, show complete search path
 288         lyxerr[Debug::INIT] << "System directory search path: "
 289                             << searchpath << endl;
 290
 291         string const filename = "chkconfig.ltx";
 292         string temp = FileOpenSearch(searchpath, filename, string());
 293         system_lyxdir = OnlyPath(temp);
 294
 295         // Reduce "path/../path" stuff out of system directory
 296         system_lyxdir = NormalizePath(system_lyxdir);
 297
 298         bool path_shown = false;
 299
 300         // Warn if environment variable is set, but unusable
 301         if (!lyxdir.empty()) {
 302                 if (system_lyxdir != NormalizePath(lyxdir)) {
 303                         lyxerr <<_("LYX_DIR_11x environment variable no good.")
 304                                << '\n'
 305                                << _("System directory set to: ")
 306                                << system_lyxdir << endl;
 307                         path_shown = true;
 308                 }
 309         }
 310
 311         // Warn the user if we couldn't find "chkconfig.ltx"
 312         if (system_lyxdir == "./") {
 313                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 314                        <<_("Try the '-sysdir' command line parameter or ")
 315                        <<_("set the environment variable LYX_DIR_11x to the "
 316                            "LyX system directory ")
 317                        << _("containing the file `chkconfig.ltx'.") << endl;
 318                 if (!path_shown) {
 319                         FileInfo fi(LYX_DIR);
 320                         if (!fi.exist()) {
 321                                 lyxerr << "Couldn't even find the default LYX_DIR." << endl
 322                                         << "Giving up." << endl;
 323                                 exit(1);
 324                         }
 325                         lyxerr << _("Using built-in default ")
 326                                << LYX_DIR << _(" but expect problems.")
 327                                << endl;
 328                 } else {
 329                         lyxerr << _("Expect problems.") << endl;
 330                 }
 331                 system_lyxdir = LYX_DIR;
 332                 path_shown = true;
 333         }
 334
 335         // Report the system directory if debugging is on
 336         if (!path_shown)
 337                 lyxerr[Debug::INIT] << "System directory: '"
 338                                     << system_lyxdir << '\'' << endl;
 339
 340         //
 341         // Determine user lyx-dir
 342         //
 343
 344         // Directories are searched in this order:
 345         // 1) -userdir command line parameter
 346         // 2) LYX_USERDIR_11x environment variable
 347         // 3) $HOME/.<name of binary>
 348
 349         // If we had a command line switch, user_lyxdir is already set
 350         bool explicit_userdir = true;
 351         if (user_lyxdir.empty()) {
 352
 353                 // LYX_USERDIR_11x environment variable
 354                 user_lyxdir = GetEnvPath("LYX_USERDIR_11x");
 355
 356                 // default behaviour
 357                 if (user_lyxdir.empty())
 358                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 359                                                         string(".") + PACKAGE);
 360                         explicit_userdir = false;
 361         }
 362
 363         lyxerr[Debug::INIT] << "User LyX directory: '"
 364                             <<  user_lyxdir << '\'' << endl;
 365
 366         // Check that user LyX directory is ok. We don't do that if
 367         // running in batch mode.
 368         if (gui)
 369                 queryUserLyXDir(explicit_userdir);
 370         else
 371                 first_start = false;
 372
 373         //
 374         // Shine up lyxrc defaults
 375         //
 376
 377         // Default template path: system_dir/templates
 378         if (lyxrc.template_path.empty()){
 379                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 380         }
 381
 382         // Default lastfiles file: $HOME/.lyx/lastfiles
 383         if (lyxrc.lastfiles.empty()){
 384                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 385         }
 386
 387         // Disable gui when either lyxrc or easyparse says so
 388         if (!gui)
 389                 lyxrc.use_gui = false;
 390
 391         // Calculate screen dpi as average of x-DPI and y-DPI:
 392         if (lyxrc.use_gui) {
 393                 lyxrc.dpi = getScreenDPI();
 394                 lyxerr[Debug::INIT] << "DPI setting detected to be "
 395                                                 << lyxrc.dpi + 0.5 << endl;
 396         } else {
 397                 lyxrc.dpi = 1; // I hope this is safe
 398         }
 399
 400         //
 401         // Read configuration files
 402         //
 403
 404         readRcFile("lyxrc.defaults");
 405         system_lyxrc = lyxrc;
 406         system_formats = formats;
 407         system_converters = converters;
 408         system_lcolor = lcolor;
 409
 410         // If there is a preferences file we read that instead
 411         // of the old lyxrc file.
 412         if (!readRcFile("preferences"))
 413             readRcFile("lyxrc");
 414
 415         // Read encodings
 416         readEncodingsFile("encodings");
 417         // Read languages
 418         readLanguagesFile("languages");
 419
 420         // Load the layouts
 421         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 422         LyXSetStyle();
 423
 424         // Ensure that we have really read a bind file, so that LyX is
 425         // usable.
 426         lyxrc.readBindFileIfNeeded();
 427
 428         // Read menus
 429         readUIFile(lyxrc.ui_file);
 430
 431         // Bind the X dead keys to the corresponding LyX functions if
 432         // necessary.
 433         if (lyxrc.override_x_deadkeys)
 434                 deadKeyBindings(toplevel_keymap.get());
 435
 436         if (lyxerr.debugging(Debug::LYXRC)) {
 437                 lyxrc.print();
 438         }
 439
 440         // Create temp directory
 441         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 442         system_tempdir = os::getTmpDir();
 443         if (lyxerr.debugging(Debug::INIT)) {
 444                 lyxerr << "LyX tmp dir: `" << system_tempdir << '\'' << endl;
 445         }
 446
 447         // load the lastfiles mini-database
 448         lyxerr[Debug::INIT] << "Reading lastfiles `"
 449                             << lyxrc.lastfiles << "'..." << endl;
 450         lastfiles = new LastFiles(lyxrc.lastfiles,
 451                                   lyxrc.check_lastfiles,
 452                                   lyxrc.num_lastfiles);
 453
 454         // start up the lyxserver. (is this a bit early?) (Lgb)
 455         // 0.12 this will be way to early, we need the GUI to be initialized
 456         // first, so move it for now.
 457         // lyxserver = new LyXServer;
 458 }
 459
 460
 461 // These are the default bindings known to LyX
 462 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 463 {
 464         kbmap->bind("Right", LFUN_RIGHT);
 465         kbmap->bind("Left", LFUN_LEFT);
 466         kbmap->bind("Up", LFUN_UP);
 467         kbmap->bind("Down", LFUN_DOWN);
 468
 469         kbmap->bind("Tab", LFUN_TAB);
 470         kbmap->bind("ISO_Left_Tab", LFUN_TAB); // jbl 2001-23-02
 471
 472         kbmap->bind("Home", LFUN_HOME);
 473         kbmap->bind("End", LFUN_END);
 474         kbmap->bind("Prior", LFUN_PRIOR);
 475         kbmap->bind("Next", LFUN_NEXT);
 476
 477         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 478         //kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 479
 480         kbmap->bind("Delete", LFUN_DELETE);
 481         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 482
 483         // kbmap->bindings to enable the use of the numeric keypad
 484         // e.g. Num Lock set
 485         //kbmap->bind("KP_0", LFUN_SELFINSERT);
 486         //kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 487         kbmap->bind("KP_Enter", LFUN_BREAKPARAGRAPH);
 488         //kbmap->bind("KP_1", LFUN_SELFINSERT);
 489         //kbmap->bind("KP_2", LFUN_SELFINSERT);
 490         //kbmap->bind("KP_3", LFUN_SELFINSERT);
 491         //kbmap->bind("KP_4", LFUN_SELFINSERT);
 492         //kbmap->bind("KP_5", LFUN_SELFINSERT);
 493         //kbmap->bind("KP_6", LFUN_SELFINSERT);
 494         //kbmap->bind("KP_Add", LFUN_SELFINSERT);
 495         //kbmap->bind("KP_7", LFUN_SELFINSERT);
 496         //kbmap->bind("KP_8", LFUN_SELFINSERT);
 497         //kbmap->bind("KP_9", LFUN_SELFINSERT);
 498         //kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 499         //kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 500         //kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 501         kbmap->bind("KP_Right", LFUN_RIGHT);
 502         kbmap->bind("KP_Left", LFUN_LEFT);
 503         kbmap->bind("KP_Up", LFUN_UP);
 504         kbmap->bind("KP_Down", LFUN_DOWN);
 505         kbmap->bind("KP_Home", LFUN_HOME);
 506         kbmap->bind("KP_End", LFUN_END);
 507         kbmap->bind("KP_Prior", LFUN_PRIOR);
 508         kbmap->bind("KP_Next", LFUN_NEXT);
 509
 510         kbmap->bind("C-Tab", LFUN_TABINSERT);  // ale970515
 511         kbmap->bind("S-Tab", LFUN_SHIFT_TAB);  // jug20000522
 512         kbmap->bind("S-ISO_Left_Tab", LFUN_SHIFT_TAB); // jbl 2001-23-02
 513 }
 514
 515
 516 // LyX can optionally take over the handling of deadkeys
 517 void LyX::deadKeyBindings(kb_keymap * kbmap)
 518 {
 519         // bindKeyings for transparent handling of deadkeys
 520         // The keysyms are gotten from XFree86 X11R6
 521         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 522         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 523         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 524         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 525         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 526         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 527         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 528         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 529         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 530         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 531         // nothing with this name
 532         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 533         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 534         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 535         // nothing with this name either...
 536         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 537         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 538         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 539         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 540 }
 541
 542
 543 // This one is not allowed to use anything on the main form, since that
 544 // one does not exist yet. (Asger)
 545 void LyX::queryUserLyXDir(bool explicit_userdir)
 546 {
 547         // Does user directory exist?
 548         FileInfo fileInfo(user_lyxdir);
 549         if (fileInfo.isOK() && fileInfo.isDir()) {
 550                 first_start = false;
 551                 return;
 552         } else {
 553                 first_start = true;
 554         }
 555
 556         // Nope
 557         // Different wording if the user specifically requested a directory
 558         if (!AskQuestion( explicit_userdir
 559                          ? _("You have specified an invalid LyX directory.")
 560                          : _("You don't have a personal LyX directory.") ,
 561
 562                          _("It is needed to keep your own configuration."),
 563                          _("Should I try to set it up for you (recommended)?"))) {
 564                 lyxerr << _("Running without personal LyX directory.") << endl;
 565                 // No, let's use $HOME instead.
 566                 user_lyxdir = GetEnvPath("HOME");
 567                 return;
 568         }
 569
 570         // Tell the user what is going on
 571         lyxerr << _("LyX: Creating directory ") << user_lyxdir
 572                << _(" and running configure...") << endl;
 573
 574         // Create directory structure
 575         if (!createDirectory(user_lyxdir, 0755)) {
 576                 // Failed, let's use $HOME instead.
 577                 user_lyxdir = GetEnvPath("HOME");
 578                 lyxerr << _("Failed. Will use ") << user_lyxdir
 579                        << _(" instead.") << endl;
 580                 return;
 581         }
 582
 583         // Run configure in user lyx directory
 584         Path p(user_lyxdir);
 585         ::system(AddName(system_lyxdir, "configure").c_str());
 586         lyxerr << "LyX: " << _("Done!") << endl;
 587 }
 588
 589
 590 // Read the rc file `name'
 591 bool LyX::readRcFile(string const & name)
 592 {
 593         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 594
 595         string lyxrc_path = LibFileSearch(string(), name);
 596         if (!lyxrc_path.empty()){
 597                 lyxerr[Debug::INIT] << "Found " << name
 598                                     << " in " << lyxrc_path << endl;
 599                 if (lyxrc.read(lyxrc_path) < 0) {
 600                         WriteAlert(_("LyX Warning!"),
 601                                    _("Error while reading ") + lyxrc_path + ".",
 602                                    _("Using built-in defaults."));
 603                         return false;
 604                 }
 605                 return true;
 606         } else
 607                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 608         return false;
 609 }
 610
 611
 612 // Read the ui file `name'
 613 void LyX::readUIFile(string const & name)
 614 {
 615         enum Uitags {
 616                 ui_menuset = 1,
 617                 ui_toolbar,
 618                 ui_last
 619         };
 620
 621         struct keyword_item uitags[ui_last-1] = {
 622                 { "menuset", ui_menuset },
 623                 { "toolbar", ui_toolbar }
 624         };
 625
 626         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 627
 628         string ui_path = LibFileSearch("ui", name, "ui");
 629
 630         if (ui_path.empty()) {
 631                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 632                 menubackend.defaults();
 633                 return;
 634         }
 635
 636         lyxerr[Debug::INIT] << "Found " << name
 637                             << " in " << ui_path << endl;
 638         LyXLex lex(uitags, ui_last - 1);
 639         lex.setFile(ui_path);
 640         if (!lex.IsOK()) {
 641                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 642                        << endl;
 643         }
 644
 645         if (lyxerr.debugging(Debug::PARSER))
 646                 lex.printTable(lyxerr);
 647
 648         while (lex.IsOK()) {
 649                 switch (lex.lex()) {
 650                 case ui_menuset:
 651                         menubackend.read(lex);
 652                         break;
 653
 654                 case ui_toolbar:
 655                         toolbardefaults.read(lex);
 656                         break;
 657
 658                 default:
 659                         if(!strip(lex.GetString()).empty())
 660                                 lex.printError("LyX::ReadUIFile: "
 661                                                "Unknown menu tag: `$$Token'");
 662                         break;
 663                 }
 664         }
 665 }
 666
 667
 668 // Read the languages file `name'
 669 void LyX::readLanguagesFile(string const & name)
 670 {
 671         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 672
 673         string lang_path = LibFileSearch(string(), name);
 674         if (lang_path.empty()) {
 675                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 676                 languages.setDefaults();
 677                 return;
 678         }
 679         languages.read(lang_path);
 680 }
 681
 682
 683 // Read the encodings file `name'
 684 void LyX::readEncodingsFile(string const & name)
 685 {
 686         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 687
 688         string enc_path = LibFileSearch(string(), name);
 689         if (enc_path.empty()) {
 690                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 691                 return;
 692         }
 693         encodings.read(enc_path);
 694 }
 695
 696
 697 namespace {
 698
 699 // Set debugging level and report result to user
 700 void setDebuggingLevel(string const & dbgLevel)
 701 {
 702         lyxerr << _("Setting debug level to ") <<  dbgLevel << endl;
 703         lyxerr.level(Debug::value(dbgLevel));
 704         Debug::showLevel(lyxerr, lyxerr.level());
 705 }
 706
 707
 708 // Give command line help
 709 void commandLineHelp()
 710 {
 711         lyxerr << "LyX " LYX_VERSION << " of " LYX_RELEASE << endl;
 712         lyxerr <<
 713                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 714                   "Command line switches (case sensitive):\n"
 715                   "\t-help              summarize LyX usage\n"
 716                   "\t-userdir dir       try to set user directory to dir\n"
 717                   "\t-sysdir dir        try to set system directory to dir\n"
 718                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 719                   "\t-dbg feature[,feature]...\n"
 720                   "                  select the features to debug.\n"
 721                   "                  Type `lyx -dbg' to see the list of features\n"
 722                   "\t-x [--execute] command\n"
 723                   "                  where command is a lyx command.\n"
 724                   "\t-e [--export] fmt\n"
 725                   "                  where fmt is the export format of choice.\n"
 726                   "\t-i [--import] fmt file.xxx\n"
 727                   "                  where fmt is the import format of choice\n"
 728                   "                  and file.xxx is the file to be imported.\n"
 729                   "Check the LyX man page for more details.") << endl;
 730 }
 731
 732 } // namespace anon
 733
 734
 735 bool LyX::easyParse(int * argc, char * argv[])
 736 {
 737         bool gui = true;
 738         int removeargs = 0; // used when options are read
 739         for (int i = 1; i < *argc; ++i) {
 740                 string arg = argv[i];
 741
 742                 // Check for -dbg int
 743                 if (arg == "-dbg") {
 744                         if (i + 1 < *argc) {
 745                                 setDebuggingLevel(argv[i + 1]);
 746                                 removeargs = 2;
 747                         } else {
 748                                 lyxerr << _("List of supported debug flags:")
 749                                        << endl;
 750                                 Debug::showTags(lyxerr);
 751                                 exit(0);
 752                         }
 753                 }
 754                 // Check for "-sysdir"
 755                 else if (arg == "-sysdir") {
 756                         if (i + 1 < *argc) {
 757                                 system_lyxdir = argv[i + 1];
 758                                 removeargs = 2;
 759                         } else {
 760                                 lyxerr << _("Missing directory for -sysdir switch!")
 761                                        << endl;
 762                                 exit(0);
 763                         }
 764                 }
 765                 // Check for "-userdir"
 766                 else if (arg == "-userdir") {
 767                         if (i + 1 < *argc) {
 768                                 user_lyxdir = argv[i + 1];
 769                                 removeargs = 2;
 770                         } else {
 771                                 lyxerr << _("Missing directory for -userdir switch!")
 772                                        << endl;
 773                                 exit(0);
 774                         }
 775                 }
 776                 // Check for --help or -help
 777                 else if (arg == "--help" || arg == "-help") {
 778                         commandLineHelp();
 779                         exit(0);
 780                 }
 781                 // Check for "-nw": No XWindows as for emacs this should
 782                 // give a LyX that could be used in a terminal window.
 783                 //else if (arg == "-nw") {
 784                 //      gui = false;
 785                 //}
 786
 787                 // Check for "-x": Execute commands
 788                 else if (arg == "-x" || arg == "--execute") {
 789                         if (i + 1 < *argc) {
 790                                 batch_command = string(argv[i + 1]);
 791                                 removeargs = 2;
 792                         }
 793                         else
 794                                 lyxerr << _("Missing command string after  -x switch!") << endl;
 795
 796                         // Argh. Setting gui to false segfaults..
 797                         //gui = false;
 798                 }
 799
 800                 else if (arg == "-e" || arg == "--export") {
 801                         if (i + 1 < *argc) {
 802                                 string type(argv[i+1]);
 803                                 removeargs = 2;
 804                                 batch_command = "buffer-export " + type;
 805                                 gui = false;
 806                         } else
 807                                 lyxerr << _("Missing file type [eg latex, "
 808                                             "ps...] after ")
 809                                        << arg << _(" switch!") << endl;
 810                 }
 811                 else if (arg == "-i" || arg == "--import") {
 812                         if (i + 1 < *argc) {
 813                                 string type(argv[i+1]);
 814                                 string file(argv[i+2]);
 815                                 removeargs = 3;
 816
 817                                 batch_command = "buffer-import " + type + " " + file;
 818                                 lyxerr << "batch_command: "
 819                                        << batch_command << endl;
 820
 821                         } else
 822                                 lyxerr << _("Missing type [eg latex, "
 823                                             "ps...] after ")
 824                                        << arg << _(" switch!") << endl;
 825                 }
 826
 827                 if (removeargs > 0) {
 828                         // Now, remove used arguments by shifting
 829                         // the following ones removeargs places down.
 830                         (*argc) -= removeargs;
 831                         for (int j = i; j < (*argc); ++j)
 832                                 argv[j] = argv[j + removeargs];
 833                         --i; // After shift, check this number again.
 834                         removeargs = 0;
 835                 }
 836
 837         }
 838
 839         return gui;
 840 }
 841
 842
 843 extern "C"
 844 void error_handler(int err_sig)
 845 {
 846         switch (err_sig) {
 847         case SIGHUP:
 848                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 849                 break;
 850         case SIGINT:
 851                 // no comments
 852                 break;
 853         case SIGFPE:
 854                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 855                 break;
 856         case SIGSEGV:
 857                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 858                 lyxerr <<
 859                         "Sorry, you have found a bug in LyX."
 860                         " If possible, please read 'Known bugs'\n"
 861                         "under the Help menu and then send us "
 862                         "a full bug report. Thanks!" << endl;
 863                 break;
 864         case SIGTERM:
 865                 // no comments
 866                 break;
 867         }
 868
 869         // Deinstall the signal handlers
 870         signal(SIGHUP, SIG_DFL);
 871         signal(SIGINT, SIG_DFL);
 872         signal(SIGFPE, SIG_DFL);
 873         signal(SIGSEGV, SIG_DFL);
 874         signal(SIGTERM, SIG_DFL);
 875
 876         bufferlist.emergencyWriteAll();
 877
 878         lyxerr << "Bye." << endl;
 879         if (err_sig!= SIGHUP &&
 880            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 881                 lyx::abort();
 882         exit(0);
 883 }