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