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 1995-2000 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
  45 using std::endl;
  46
  47 #ifndef CXX_GLOBAL_CSTD
  48 using std::signal;
  49 #endif
  50
  51 extern void LoadLyXFile(string const &);
  52 extern void QuitLyX();
  53
  54 string system_lyxdir;
  55 string build_lyxdir;
  56 string system_tempdir;
  57 string user_lyxdir;     // Default $HOME/.lyx
  58
  59 // Should this be kept global? Asger says Yes.
  60 DebugStream lyxerr;
  61
  62 LastFiles * lastfiles;
  63
  64 // This is the global bufferlist object
  65 BufferList bufferlist;
  66
  67 LyXServer * lyxserver = 0;
  68 // this should be static, but I need it in buffer.C
  69 bool finished = false;  // flag, that we are quitting the program
  70
  71 // convenient to have it here.
  72 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  73
  74
  75 LyX::LyX(int * argc, char * argv[])
  76 {
  77         // Prevent crash with --help
  78         lyxGUI = 0;
  79         lastfiles = 0;
  80
  81         // Here we need to parse the command line. At least
  82         // we need to parse for "-dbg" and "-help"
  83         bool gui = easyParse(argc, argv);
  84
  85         // Global bindings (this must be done as early as possible.) (Lgb)
  86         toplevel_keymap.reset(new kb_keymap);
  87         defaultKeyBindings(toplevel_keymap.get());
  88
  89         // Make the GUI object, and let it take care of the
  90         // command line arguments that concerns it.
  91         lyxerr[Debug::INIT] << "Initializing LyXGUI..." << endl;
  92         lyxGUI = new LyXGUI(this, argc, argv, gui);
  93         lyxerr[Debug::INIT] << "Initializing LyXGUI...done" << endl;
  94
  95         // Now the GUI and LyX have taken care of their arguments, so
  96         // the only thing left on the command line should be
  97         // filenames. Let's check anyway.
  98         for (int argi = 1; argi < *argc ; ++argi) {
  99                 if (argv[argi][0] == '-') {
 100                         lyxerr << _("Wrong command line option `")
 101                                << argv[argi]
 102                                << _("'. Exiting.") << endl;
 103                         exit(0);
 104                 }
 105         }
 106
 107         // Initialization of LyX (reads lyxrc and more)
 108         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 109         init(argc, argv, gui);
 110         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 111
 112         lyxGUI->init();
 113
 114         // Load the files specified in the command line.
 115         if ((*argc) == 2)
 116                 lyxerr[Debug::INFO] << "Opening document..." << endl;
 117         else if ((*argc) > 2)
 118                 lyxerr[Debug::INFO] << "Opening documents..." << endl;
 119
 120         Buffer * last_loaded = 0;
 121
 122         for (int argi = (*argc) - 1; argi >= 1; --argi) {
 123                 Buffer * loadb = bufferlist.loadLyXFile(argv[argi]);
 124                 if (loadb != 0) {
 125                         last_loaded = loadb;
 126                 }
 127         }
 128
 129         if (first_start) {
 130                 string splash = i18nLibFileSearch("examples", "splash.lyx");
 131                 lyxerr[Debug::INIT] << "Opening splash document "
 132                                << splash << "..." << endl;
 133                 Buffer * loadb = bufferlist.loadLyXFile(splash);
 134                 if (loadb != 0) {
 135                         last_loaded = loadb;
 136                 }
 137         }
 138
 139         if (last_loaded != 0) {
 140                 lyxerr[Debug::INIT] << "Yes we loaded some files." << endl;
 141                 if (lyxrc.use_gui)
 142                         lyxGUI->regBuf(last_loaded);
 143         }
 144
 145         // Execute batch commands if available
 146         if (!batch_command.empty()) {
 147                 lyxerr << "About to handle -x '"
 148                        << batch_command << "'" << endl;
 149
 150                 // no buffer loaded, create one
 151                 if (!last_loaded)
 152                         last_loaded = bufferlist.newFile("tmpfile", string());
 153
 154                 // try to dispatch to last loaded buffer first
 155                 bool dispatched = last_loaded->Dispatch(batch_command);
 156
 157                 // if this was successful, return.
 158                 // Maybe we could do something more clever than aborting...
 159                 if (dispatched) {
 160                         lyxerr << "We are done!" << endl;
 161                         QuitLyX();
 162                         return;
 163                 }
 164
 165                 // otherwise, let the GUI handle the batch command
 166                 lyxGUI->regBuf(last_loaded);
 167                 lyxGUI->getLyXView()->getLyXFunc()->Dispatch(batch_command);
 168
 169                 // fall through...
 170         }
 171
 172         // Let the ball begin...
 173         lyxGUI->runTime();
 174 }
 175
 176
 177 // A destructor is always necessary  (asierra-970604)
 178 LyX::~LyX()
 179 {
 180         delete lastfiles;
 181         delete lyxGUI;
 182 }
 183
 184
 185 extern "C" void error_handler(int err_sig);
 186
 187 void LyX::init(int */*argc*/, char **argv, bool gui)
 188 {
 189         // Install the signal handlers
 190         signal(SIGHUP, error_handler);
 191         signal(SIGFPE, error_handler);
 192         signal(SIGSEGV, error_handler);
 193         signal(SIGINT, error_handler);
 194         signal(SIGTERM, error_handler);
 195
 196         //
 197         // Determine path of binary
 198         //
 199
 200         string fullbinpath;
 201         string binpath = subst(argv[0], '\\', '/');
 202         string binname = OnlyFilename(argv[0]);
 203         // Sorry for system specific code. (SMiyata)
 204         if (suffixIs(binname, ".exe"))
 205                 binname.erase(binname.length()-4, string::npos);
 206
 207         binpath = ExpandPath(binpath); // This expands ./ and ~/
 208
 209         if (!AbsolutePath(binpath)) {
 210                 string binsearchpath = GetEnvPath("PATH");
 211                 // This will make "src/lyx" work always :-)
 212                 binsearchpath += ";.";
 213                 binpath = FileOpenSearch(binsearchpath, argv[0]);
 214         }
 215
 216         fullbinpath = binpath;
 217         binpath = MakeAbsPath(OnlyPath(binpath));
 218
 219         // In case we are running in place and compiled with shared libraries
 220         if (suffixIs(binpath, "/.libs/"))
 221                 binpath.erase(binpath.length()-6, string::npos);
 222
 223         if (binpath.empty()) {
 224                 lyxerr << _("Warning: could not determine path of binary.")
 225                        << "\n"
 226                        << _("If you have problems, try starting LyX with an absolute path.")
 227                        << endl;
 228         }
 229         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 230
 231         //
 232         // Determine system directory.
 233         //
 234
 235         // Directories are searched in this order:
 236         // 1) -sysdir command line parameter
 237         // 2) LYX_DIR_11x environment variable
 238         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 239         // 4) <path of binary>/../share/<name of binary>/
 240         // 4a) repeat 4 after following the Symlink if <path of
 241         //     binary> is a symbolic link.
 242         // 5) hardcoded lyx_dir
 243         // The directory is checked for the presence of the file
 244         // "chkconfig.ltx", and if that is present, the directory
 245         // is accepted as the system directory.
 246         // If no chkconfig.ltx file is found, a warning is given,
 247         // and the hardcoded lyx_dir is used.
 248
 249         // If we had a command line switch, system_lyxdir is already set
 250         string searchpath;
 251         if (!system_lyxdir.empty())
 252                 searchpath= MakeAbsPath(system_lyxdir) + ';';
 253
 254         // LYX_DIR_11x environment variable
 255         string lyxdir = GetEnvPath("LYX_DIR_11x");
 256
 257         if (!lyxdir.empty()) {
 258                 lyxerr[Debug::INIT] << "LYX_DIR_11x: " << lyxdir << endl;
 259                 searchpath += lyxdir + ';';
 260         }
 261
 262         // <path of binary>/TOP_SRCDIR/lib
 263         build_lyxdir = MakeAbsPath("../lib", binpath);
 264         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 265                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 266                                           binpath) + ';';
 267                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 268                         "place... yes" << endl;
 269         } else {
 270                 lyxerr[Debug::INIT]
 271                         << "Checking whether LyX is run in place... no"
 272                         << endl;
 273                 build_lyxdir.erase();
 274         }
 275
 276         bool FollowLink;
 277         do {
 278           // Path of binary/../share/name of binary/
 279                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 280                       OnlyFilename(binname)) + ';';
 281
 282           // Follow Symlinks
 283                 FileInfo file(fullbinpath, true);
 284                 FollowLink = file.isLink();
 285                 if (FollowLink) {
 286                         string Link;
 287                         if (LyXReadLink(fullbinpath, Link)) {
 288                                 fullbinpath = Link;
 289                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 290                         }
 291                         else {
 292                                 FollowLink = false;
 293                         }
 294                 }
 295         } while (FollowLink);
 296
 297         // Hardcoded dir
 298         searchpath += LYX_DIR;
 299
 300         // If debugging, show complete search path
 301         lyxerr[Debug::INIT] << "System directory search path: "
 302                             << searchpath << endl;
 303
 304         string const filename = "chkconfig.ltx";
 305         string temp = FileOpenSearch(searchpath, filename, string());
 306         system_lyxdir = OnlyPath(temp);
 307
 308         // Reduce "path/../path" stuff out of system directory
 309         system_lyxdir = NormalizePath(system_lyxdir);
 310
 311         bool path_shown = false;
 312
 313         // Warn if environment variable is set, but unusable
 314         if (!lyxdir.empty()) {
 315                 if (system_lyxdir != NormalizePath(lyxdir)) {
 316                         lyxerr <<_("LYX_DIR_11x environment variable no good.")
 317                                << '\n'
 318                                << _("System directory set to: ")
 319                                << system_lyxdir << endl;
 320                         path_shown = true;
 321                 }
 322         }
 323
 324         // Warn the user if we couldn't find "chkconfig.ltx"
 325         if (system_lyxdir == "./") {
 326                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 327                        <<_("Try the '-sysdir' command line parameter or ")
 328                        <<_("set the environment variable LYX_DIR_11x to the "
 329                            "LyX system directory ")
 330                        << _("containing the file `chkconfig.ltx'.") << endl;
 331                 if (!path_shown)
 332                         lyxerr << _("Using built-in default ")
 333                                << LYX_DIR << _(" but expect problems.")
 334                                << endl;
 335                 else
 336                         lyxerr << _("Expect problems.") << endl;
 337                 system_lyxdir = LYX_DIR;
 338                 path_shown = true;
 339         }
 340
 341         // Report the system directory if debugging is on
 342         if (!path_shown)
 343                 lyxerr[Debug::INIT] << "System directory: '"
 344                                     << system_lyxdir << '\'' << endl;
 345
 346         //
 347         // Determine user lyx-dir
 348         //
 349
 350         // Directories are searched in this order:
 351         // 1) -userdir command line parameter
 352         // 2) LYX_USERDIR_11x environment variable
 353         // 3) $HOME/.<name of binary>
 354
 355         // If we had a command line switch, user_lyxdir is already set
 356         bool explicit_userdir = true;
 357         if (user_lyxdir.empty()) {
 358
 359                 // LYX_USERDIR_11x environment variable
 360                 user_lyxdir = GetEnvPath("LYX_USERDIR_11x");
 361
 362                 // default behaviour
 363                 if (user_lyxdir.empty())
 364                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 365                                                         string(".") + PACKAGE);
 366                         explicit_userdir = false;
 367         }
 368
 369         lyxerr[Debug::INIT] << "User LyX directory: '"
 370                             <<  user_lyxdir << '\'' << endl;
 371
 372         // Check that user LyX directory is ok. We don't do that if
 373         // running in batch mode.
 374         if (gui)
 375                 queryUserLyXDir(explicit_userdir);
 376         else
 377                 first_start = false;
 378
 379         //
 380         // Shine up lyxrc defaults
 381         //
 382
 383         // Default template path: system_dir/templates
 384         if (lyxrc.template_path.empty()){
 385                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 386         }
 387
 388         // Default lastfiles file: $HOME/.lyx/lastfiles
 389         if (lyxrc.lastfiles.empty()){
 390                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 391         }
 392
 393         // Disable gui when either lyxrc or easyparse says so
 394         if (!gui)
 395                 lyxrc.use_gui = false;
 396
 397         // Calculate screen dpi as average of x-DPI and y-DPI:
 398         if (lyxrc.use_gui) {
 399                 lyxrc.dpi = getScreenDPI();
 400                 lyxerr[Debug::INIT] << "DPI setting detected to be "
 401                                                 << lyxrc.dpi + 0.5 << endl;
 402         } else {
 403                 lyxrc.dpi = 1; // I hope this is safe
 404         }
 405
 406         //
 407         // Read configuration files
 408         //
 409
 410         ReadRcFile("lyxrc.defaults");
 411         system_lyxrc = lyxrc;
 412         system_formats = formats;
 413         system_converters = converters;
 414         system_lcolor = lcolor;
 415
 416         // If there is a preferences file we read that instead
 417         // of the old lyxrc file.
 418         if (!ReadRcFile("preferences"))
 419             ReadRcFile("lyxrc");
 420
 421         // Read encodings
 422         ReadEncodingsFile("encodings");
 423         // Read languages
 424         ReadLanguagesFile("languages");
 425
 426         // Load the layouts
 427         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 428         LyXSetStyle();
 429
 430         // Ensure that we have really read a bind file, so that LyX is
 431         // usable.
 432         lyxrc.readBindFileIfNeeded();
 433
 434         // Read menus
 435         ReadUIFile(lyxrc.ui_file);
 436
 437         // Bind the X dead keys to the corresponding LyX functions if
 438         // necessary.
 439         if (lyxrc.override_x_deadkeys)
 440                 deadKeyBindings(toplevel_keymap.get());
 441
 442         if (lyxerr.debugging(Debug::LYXRC)) {
 443                 lyxrc.print();
 444         }
 445
 446         // Create temp directory
 447         system_tempdir = CreateLyXTmpDir(lyxrc.tempdir_path);
 448         if (lyxerr.debugging(Debug::INIT)) {
 449                 lyxerr << "LyX tmp dir: `" << system_tempdir << '\'' << endl;
 450         }
 451
 452         // load the lastfiles mini-database
 453         lyxerr[Debug::INIT] << "Reading lastfiles `"
 454                             << lyxrc.lastfiles << "'..." << endl;
 455         lastfiles = new LastFiles(lyxrc.lastfiles,
 456                                   lyxrc.check_lastfiles,
 457                                   lyxrc.num_lastfiles);
 458
 459         // start up the lyxserver. (is this a bit early?) (Lgb)
 460         // 0.12 this will be way to early, we need the GUI to be initialized
 461         // first, so move it for now.
 462         // lyxserver = new LyXServer;
 463 }
 464
 465
 466 // These are the default bindings known to LyX
 467 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 468 {
 469         kbmap->bind("Right", LFUN_RIGHT);
 470         kbmap->bind("Left", LFUN_LEFT);
 471         kbmap->bind("Up", LFUN_UP);
 472         kbmap->bind("Down", LFUN_DOWN);
 473
 474         kbmap->bind("Tab", LFUN_TAB);
 475         kbmap->bind("ISO_Left_Tab", LFUN_TAB); // jbl 2001-23-02
 476
 477         kbmap->bind("Home", LFUN_HOME);
 478         kbmap->bind("End", LFUN_END);
 479         kbmap->bind("Prior", LFUN_PRIOR);
 480         kbmap->bind("Next", LFUN_NEXT);
 481
 482         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 483         kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 484
 485         kbmap->bind("Delete", LFUN_DELETE);
 486         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 487
 488         // kbmap->bindings to enable the use of the numeric keypad
 489         // e.g. Num Lock set
 490         kbmap->bind("KP_0", LFUN_SELFINSERT);
 491         kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 492         kbmap->bind("KP_Enter", LFUN_SELFINSERT);
 493         kbmap->bind("KP_1", LFUN_SELFINSERT);
 494         kbmap->bind("KP_2", LFUN_SELFINSERT);
 495         kbmap->bind("KP_3", LFUN_SELFINSERT);
 496         kbmap->bind("KP_4", LFUN_SELFINSERT);
 497         kbmap->bind("KP_5", LFUN_SELFINSERT);
 498         kbmap->bind("KP_6", LFUN_SELFINSERT);
 499         kbmap->bind("KP_Add", LFUN_SELFINSERT);
 500         kbmap->bind("KP_7", LFUN_SELFINSERT);
 501         kbmap->bind("KP_8", LFUN_SELFINSERT);
 502         kbmap->bind("KP_9", LFUN_SELFINSERT);
 503         kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 504         kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 505         kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 506
 507         /* Most self-insert keys are handled in the 'default:' section of
 508          * WorkAreaKeyPress - so we don't have to define them all.
 509          * However keys explicit decleared as self-insert are
 510          * handled seperatly (LFUN_SELFINSERT.) Lgb. */
 511
 512         kbmap->bind("C-Tab", LFUN_TABINSERT);  // ale970515
 513         kbmap->bind("S-Tab", LFUN_SHIFT_TAB);  // jug20000522
 514         kbmap->bind("S-ISO_Left_Tab", LFUN_SHIFT_TAB); // jbl 2001-23-02
 515 }
 516
 517
 518 // LyX can optionally take over the handling of deadkeys
 519 void LyX::deadKeyBindings(kb_keymap * kbmap)
 520 {
 521         // bindKeyings for transparent handling of deadkeys
 522         // The keysyms are gotten from XFree86 X11R6
 523         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 524         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 525         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 526         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 527         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 528         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 529         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 530         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 531         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 532         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 533         // nothing with this name
 534         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 535         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 536         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 537         // nothing with this name either...
 538         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 539         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 540         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 541         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 542 }
 543
 544
 545 // This one is not allowed to use anything on the main form, since that
 546 // one does not exist yet. (Asger)
 547 void LyX::queryUserLyXDir(bool explicit_userdir)
 548 {
 549         // Does user directory exist?
 550         FileInfo fileInfo(user_lyxdir);
 551         if (fileInfo.isOK() && fileInfo.isDir()) {
 552                 first_start = false;
 553                 return;
 554         } else {
 555                 first_start = true;
 556         }
 557
 558         // Nope
 559         // Different wording if the user specifically requested a directory
 560         if (!AskQuestion( explicit_userdir
 561                          ? _("You have specified an invalid LyX directory.")
 562                          : _("You don't have a personal LyX directory.") ,
 563
 564                          _("It is needed to keep your own configuration."),
 565                          _("Should I try to set it up for you (recommended)?"))) {
 566                 lyxerr << _("Running without personal LyX directory.") << endl;
 567                 // No, let's use $HOME instead.
 568                 user_lyxdir = GetEnvPath("HOME");
 569                 return;
 570         }
 571
 572         // Tell the user what is going on
 573         lyxerr << _("LyX: Creating directory ") << user_lyxdir
 574                << _(" and running configure...") << endl;
 575
 576         // Create directory structure
 577         if (!createDirectory(user_lyxdir, 0755)) {
 578                 // Failed, let's use $HOME instead.
 579                 user_lyxdir = GetEnvPath("HOME");
 580                 lyxerr << _("Failed. Will use ") << user_lyxdir
 581                        << _(" instead.") << endl;
 582                 return;
 583         }
 584
 585         // Run configure in user lyx directory
 586         Path p(user_lyxdir);
 587         ::system(AddName(system_lyxdir, "configure").c_str());
 588         lyxerr << "LyX: " << _("Done!") << endl;
 589 }
 590
 591
 592 // Read the rc file `name'
 593 bool LyX::ReadRcFile(string const & name)
 594 {
 595         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 596
 597         string lyxrc_path = LibFileSearch(string(), name);
 598         if (!lyxrc_path.empty()){
 599                 lyxerr[Debug::INIT] << "Found " << name
 600                                     << " in " << lyxrc_path << endl;
 601                 if (lyxrc.read(lyxrc_path) < 0) {
 602                         WriteAlert(_("LyX Warning!"),
 603                                    _("Error while reading ")+lyxrc_path+".",
 604                                    _("Using built-in defaults."));
 605                         return false;
 606                 }
 607                 return true;
 608         } else
 609                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 610         return false;
 611 }
 612
 613
 614 // Read the ui file `name'
 615 void LyX::ReadUIFile(string const & name)
 616 {
 617         enum Uitags {
 618                 ui_menuset = 1,
 619                 ui_toolbar,
 620                 ui_last
 621         };
 622
 623         struct keyword_item uitags[ui_last-1] = {
 624                 { "menuset", ui_menuset },
 625                 { "toolbar", ui_toolbar }
 626         };
 627
 628         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 629
 630         string ui_path = LibFileSearch("ui", name, "ui");
 631
 632         if (ui_path.empty()) {
 633                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 634                 menubackend.defaults();
 635                 return;
 636         }
 637
 638         lyxerr[Debug::INIT] << "Found " << name
 639                             << " in " << ui_path << endl;
 640         LyXLex lex(uitags, ui_last - 1);
 641         lex.setFile(ui_path);
 642         if (!lex.IsOK()) {
 643                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 644                        << endl;
 645         }
 646
 647         if (lyxerr.debugging(Debug::PARSER))
 648                 lex.printTable(lyxerr);
 649
 650         while (lex.IsOK()) {
 651                 switch (lex.lex()) {
 652                 case ui_menuset:
 653                         menubackend.read(lex);
 654                         break;
 655
 656                 case ui_toolbar:
 657                         toolbardefaults.read(lex);
 658                         break;
 659
 660                 default:
 661                         if(!strip(lex.GetString()).empty())
 662                                 lex.printError("LyX::ReadUIFile: "
 663                                                "Unknown menu tag: `$$Token'");
 664                         break;
 665                 }
 666         }
 667 }
 668
 669
 670 // Read the languages file `name'
 671 void LyX::ReadLanguagesFile(string const & name)
 672 {
 673         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 674
 675         string lang_path = LibFileSearch(string(), name);
 676         if (lang_path.empty()) {
 677                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 678                 languages.setDefaults();
 679                 return;
 680         }
 681         languages.read(lang_path);
 682 }
 683
 684
 685 // Read the encodings file `name'
 686 void LyX::ReadEncodingsFile(string const & name)
 687 {
 688         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 689
 690         string enc_path = LibFileSearch(string(), name);
 691         if (enc_path.empty()) {
 692                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 693                 return;
 694         }
 695         encodings.read(enc_path);
 696 }
 697
 698
 699 namespace {
 700
 701 // Set debugging level and report result to user
 702 void setDebuggingLevel(string const & dbgLevel)
 703 {
 704         lyxerr << _("Setting debug level to ") <<  dbgLevel << endl;
 705         lyxerr.level(Debug::value(dbgLevel));
 706         Debug::showLevel(lyxerr, lyxerr.level());
 707 }
 708
 709
 710 // Give command line help
 711 void commandLineHelp()
 712 {
 713         lyxerr << "LyX " LYX_VERSION << " of " LYX_RELEASE << endl;
 714         lyxerr <<
 715                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 716                   "Command line switches (case sensitive):\n"
 717                   "\t-help              summarize LyX usage\n"
 718                   "\t-userdir dir       try to set user directory to dir\n"
 719                   "\t-sysdir dir        try to set system directory to dir\n"
 720                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 721                   "\t-dbg feature[,feature]...\n"
 722                   "                  select the features to debug.\n"
 723                   "                  Type `lyx -dbg' to see the list of features\n"
 724                   "\t-x [--execute] command\n"
 725                   "                  where command is a lyx command.\n"
 726                   "\t-e [--export] fmt\n"
 727                   "                  where fmt is the export format of choice.\n"
 728                   "\t-i [--import] fmt file.xxx\n"
 729                   "                  where fmt is the import format of choice\n"
 730                   "                  and file.xxx is the file to be imported.\n"
 731                   "Check the LyX man page for more details.") << endl;
 732 }
 733
 734 } // namespace anon
 735
 736
 737 bool LyX::easyParse(int * argc, char * argv[])
 738 {
 739         bool gui = true;
 740         int removeargs = 0; // used when options are read
 741         for (int i = 1; i < *argc; ++i) {
 742                 string arg = argv[i];
 743
 744                 // Check for -dbg int
 745                 if (arg == "-dbg") {
 746                         if (i + 1 < *argc) {
 747                                 setDebuggingLevel(argv[i + 1]);
 748                                 removeargs = 2;
 749                         } else {
 750                                 lyxerr << _("List of supported debug flags:")
 751                                        << endl;
 752                                 Debug::showTags(lyxerr);
 753                                 exit(0);
 754                         }
 755                 }
 756                 // Check for "-sysdir"
 757                 else if (arg == "-sysdir") {
 758                         if (i + 1 < *argc) {
 759                                 system_lyxdir = argv[i + 1];
 760                                 removeargs = 2;
 761                         } else {
 762                                 lyxerr << _("Missing directory for -sysdir switch!")
 763                                        << endl;
 764                                 exit(0);
 765                         }
 766                 }
 767                 // Check for "-userdir"
 768                 else if (arg == "-userdir") {
 769                         if (i + 1 < *argc) {
 770                                 user_lyxdir = argv[i + 1];
 771                                 removeargs = 2;
 772                         } else {
 773                                 lyxerr << _("Missing directory for -userdir switch!")
 774                                        << endl;
 775                                 exit(0);
 776                         }
 777                 }
 778                 // Check for --help or -help
 779                 else if (arg == "--help" || arg == "-help") {
 780                         commandLineHelp();
 781                         exit(0);
 782                 }
 783                 // Check for "-nw": No XWindows as for emacs this should
 784                 // give a LyX that could be used in a terminal window.
 785                 //else if (arg == "-nw") {
 786                 //      gui = false;
 787                 //}
 788
 789                 // Check for "-x": Execute commands
 790                 else if (arg == "-x" || arg == "--execute") {
 791                         if (i + 1 < *argc) {
 792                                 batch_command = string(argv[i + 1]);
 793                                 removeargs = 2;
 794                         }
 795                         else
 796                                 lyxerr << _("Missing command string after  -x switch!") << endl;
 797
 798                         // Argh. Setting gui to false segfaults..
 799                         //gui = false;
 800                 }
 801
 802                 else if (arg == "-e" || arg == "--export") {
 803                         if (i + 1 < *argc) {
 804                                 string type(argv[i+1]);
 805                                 removeargs = 2;
 806                                 batch_command = "buffer-export " + type;
 807                                 gui = false;
 808                         } else
 809                                 lyxerr << _("Missing file type [eg latex, "
 810                                             "ps...] after ")
 811                                        << arg << _(" switch!") << endl;
 812                 }
 813                 else if (arg == "-i" || arg == "--import") {
 814                         if (i + 1 < *argc) {
 815                                 string type(argv[i+1]);
 816                                 string file(argv[i+2]);
 817                                 removeargs = 3;
 818
 819                                 batch_command = "buffer-import " + type + " " + file;
 820                                 lyxerr << "batch_command: "
 821                                        << batch_command << endl;
 822
 823                         } else
 824                                 lyxerr << _("Missing type [eg latex, "
 825                                             "ps...] after ")
 826                                        << arg << _(" switch!") << endl;
 827                 }
 828
 829                 if (removeargs > 0) {
 830                         // Now, remove used arguments by shifting
 831                         // the following ones removeargs places down.
 832                         (*argc) -= removeargs;
 833                         for (int j = i; j < (*argc); ++j)
 834                                 argv[j] = argv[j + removeargs];
 835                         --i; // After shift, check this number again.
 836                         removeargs = 0;
 837                 }
 838
 839         }
 840
 841         return gui;
 842 }
 843
 844
 845 extern "C"
 846 void error_handler(int err_sig)
 847 {
 848         switch (err_sig) {
 849         case SIGHUP:
 850                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 851                 break;
 852         case SIGINT:
 853                 // no comments
 854                 break;
 855         case SIGFPE:
 856                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 857                 break;
 858         case SIGSEGV:
 859                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 860                 lyxerr <<
 861                         "Sorry, you have found a bug in LyX."
 862                         " If possible, please read 'Known bugs'\n"
 863                         "under the Help menu and then send us "
 864                         "a full bug report. Thanks!" << endl;
 865                 break;
 866         case SIGTERM:
 867                 // no comments
 868                 break;
 869         }
 870
 871         // Deinstall the signal handlers
 872         signal(SIGHUP, SIG_DFL);
 873         signal(SIGINT, SIG_DFL);
 874         signal(SIGFPE, SIG_DFL);
 875         signal(SIGSEGV, SIG_DFL);
 876         signal(SIGTERM, SIG_DFL);
 877
 878         bufferlist.emergencyWriteAll();
 879
 880         lyxerr << "Bye." << endl;
 881         if (err_sig!= SIGHUP &&
 882            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 883                 lyx::abort();
 884         exit(0);
 885 }