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