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