src/lyx_main.C

   1 /**
   2  * \file lyx_main.C
   3  * Copyright 1995-2002 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author unknown
   7  */
   8
   9 #include <config.h>
  10 #include <version.h>
  11
  12 #ifdef __GNUG__
  13 #pragma implementation
  14 #endif
  15
  16 #include "lyx_main.h"
  17 #include "lyx_gui.h"
  18 #include "frontends/LyXView.h"
  19 #include "lyxfunc.h"
  20 #include "lyxrc.h"
  21 #include "buffer.h"
  22 #include "bufferlist.h"
  23 #include "debug.h"
  24 #include "lastfiles.h"
  25 #include "intl.h"
  26 #include "lyxserver.h"
  27 //#include "layout.h"
  28 #include "lyxtextclasslist.h"
  29 #include "gettext.h"
  30 #include "kbmap.h"
  31 #include "MenuBackend.h"
  32 #include "ToolbarDefaults.h"
  33 #include "lyxlex.h"
  34 #include "encoding.h"
  35 #include "converter.h"
  36 #include "language.h"
  37
  38 #include "frontends/Alert.h"
  39 #include "frontends/GUIRunTime.h"
  40
  41 #include "support/path.h"
  42 #include "support/filetools.h"
  43 #include "support/FileInfo.h"
  44 #include "support/os.h"
  45
  46 #include <cstdlib>
  47 #include <csignal>
  48
  49 using std::endl;
  50
  51 #ifndef CXX_GLOBAL_CSTD
  52 using std::exit;
  53 using std::signal;
  54 using std::system;
  55 #endif
  56
  57 extern void LoadLyXFile(string const &);
  58 extern void QuitLyX();
  59
  60 string system_lyxdir;
  61 string build_lyxdir;
  62 string system_tempdir;
  63 string user_lyxdir;
  64
  65 DebugStream lyxerr;
  66
  67 boost::scoped_ptr<LastFiles> lastfiles;
  68
  69 // This is the global bufferlist object
  70 BufferList bufferlist;
  71
  72 LyXServer * lyxserver = 0;
  73 // this should be static, but I need it in buffer.C
  74 bool finished = false;  // flag, that we are quitting the program
  75
  76 // convenient to have it here.
  77 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  78
  79
  80 LyX::LyX(int * argc, char * argv[])
  81 {
  82         // 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.reset(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(1);
 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 const splash =
 132                         i18nLibFileSearch("examples", "splash.lyx");
 133                 lyxerr[Debug::INIT] << "Opening splash document "
 134                                << splash << "..." << endl;
 135                 Buffer * loadb = bufferlist.loadLyXFile(splash);
 136                 if (loadb != 0) {
 137                         last_loaded = loadb;
 138                 }
 139         }
 140
 141         if (last_loaded != 0) {
 142                 lyxerr[Debug::INIT] << "Yes we loaded some files." << endl;
 143                 if (lyxrc.use_gui)
 144                         lyxGUI->regBuf(last_loaded);
 145         }
 146
 147         // Execute batch commands if available
 148         if (!batch_command.empty()) {
 149                 lyxerr << "About to handle -x '"
 150                        << batch_command << "'" << endl;
 151
 152                 // no buffer loaded, create one
 153                 if (!last_loaded)
 154                         last_loaded = bufferlist.newFile("tmpfile", string());
 155
 156                 bool success = false;
 157
 158                 // try to dispatch to last loaded buffer first
 159                 bool dispatched = last_loaded->dispatch(batch_command, &success);
 160
 161                 // if this was successful, return.
 162                 // Maybe we could do something more clever than aborting...
 163                 if (dispatched) {
 164                         QuitLyX();
 165                         exit(!success);
 166                 }
 167
 168                 // otherwise, let the GUI handle the batch command
 169                 lyxGUI->regBuf(last_loaded);
 170                 lyxGUI->getLyXView()->getLyXFunc()->verboseDispatch(batch_command, false);
 171
 172                 // fall through...
 173         }
 174
 175         // Let the ball begin...
 176         lyxGUI->runTime();
 177 }
 178
 179
 180 extern "C" {
 181
 182 static
 183 void error_handler(int err_sig)
 184 {
 185         switch (err_sig) {
 186         case SIGHUP:
 187                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 188                 break;
 189         case SIGINT:
 190                 // no comments
 191                 break;
 192         case SIGFPE:
 193                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 194                 break;
 195         case SIGSEGV:
 196                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 197                 lyxerr <<
 198                         "Sorry, you have found a bug in LyX. "
 199                         "Please read the bug-reporting instructions "
 200                         "in Help->Introduction and send us a bug report, "
 201                         "if necessary. Thanks !" << endl;
 202                 break;
 203         case SIGTERM:
 204                 // no comments
 205                 break;
 206         }
 207
 208         // Deinstall the signal handlers
 209         signal(SIGHUP, SIG_DFL);
 210         signal(SIGINT, SIG_DFL);
 211         signal(SIGFPE, SIG_DFL);
 212         signal(SIGSEGV, SIG_DFL);
 213         signal(SIGTERM, SIG_DFL);
 214
 215         LyX::emergencyCleanup();
 216
 217         lyxerr << "Bye." << endl;
 218         if (err_sig!= SIGHUP &&
 219            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 220                 lyx::abort();
 221         exit(0);
 222 }
 223
 224 }
 225
 226
 227 void LyX::init(bool gui)
 228 {
 229         // Install the signal handlers
 230         signal(SIGHUP, error_handler);
 231         signal(SIGFPE, error_handler);
 232         signal(SIGSEGV, error_handler);
 233         signal(SIGINT, error_handler);
 234         signal(SIGTERM, error_handler);
 235
 236         //
 237         // Determine path of binary
 238         //
 239
 240         string binpath = os::binpath();
 241         string binname = os::binname();
 242         string fullbinname = MakeAbsPath(binname, binpath);
 243
 244         if (binpath.empty()) {
 245                 lyxerr << _("Warning: could not determine path of binary.")
 246                        << "\n"
 247                        << _("If you have problems, try starting LyX with an absolute path.")
 248                        << endl;
 249         }
 250         lyxerr[Debug::INIT] << "Name of binary: " << binname << endl;
 251         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 252
 253         //
 254         // Determine system directory.
 255         //
 256
 257         // Directories are searched in this order:
 258         // 1) -sysdir command line parameter
 259         // 2) LYX_DIR_13x environment variable
 260         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 261         // 4) <path of binary>/../share/<name of binary>/
 262         // 4a) repeat 4 after following the Symlink if <path of
 263         //     binary> is a symbolic link.
 264         // 5) hardcoded lyx_dir
 265         // The directory is checked for the presence of the file
 266         // "chkconfig.ltx", and if that is present, the directory
 267         // is accepted as the system directory.
 268         // If no chkconfig.ltx file is found, a warning is given,
 269         // and the hardcoded lyx_dir is used.
 270
 271         // If we had a command line switch, system_lyxdir is already set
 272         string searchpath;
 273         if (!system_lyxdir.empty())
 274                 searchpath= MakeAbsPath(system_lyxdir) + ';';
 275
 276         // LYX_DIR_13x environment variable
 277         string const lyxdir = GetEnvPath("LYX_DIR_13x");
 278
 279         if (!lyxdir.empty()) {
 280                 lyxerr[Debug::INIT] << "LYX_DIR_13x: " << lyxdir << endl;
 281                 searchpath += lyxdir + ';';
 282         }
 283
 284         string fullbinpath = binpath;
 285         FileInfo file(fullbinname, true);
 286         if (file.isLink()) {
 287                 lyxerr[Debug::INIT] << "binary is a link" << endl;
 288                 string link;
 289                 if (LyXReadLink(fullbinname, link)) {
 290                         // Path of binary/../share/name of binary/
 291                         searchpath += NormalizePath(AddPath(binpath,
 292                                                             "../share/")
 293                                                     + OnlyFilename(binname));
 294                         searchpath += ';';
 295                         fullbinpath = link;
 296                         binpath = MakeAbsPath(OnlyPath(fullbinpath));
 297                 }
 298         }
 299
 300         bool followlink;
 301         do {
 302                 // Path of binary/../share/name of binary/
 303                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 304                       OnlyFilename(binname)) + ';';
 305
 306                 // Follow Symlinks
 307                 FileInfo file(fullbinpath, true);
 308                 followlink = file.isLink();
 309                 if (followlink) {
 310                         lyxerr << " directory " << fullbinpath
 311                                << " is a link" << endl;
 312                         string link;
 313                         if (LyXReadLink(fullbinpath, link)) {
 314                                 fullbinpath = link;
 315                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 316                         }
 317                         else {
 318                                 followlink = false;
 319                         }
 320                 }
 321         } while (followlink);
 322
 323         // <path of binary>/TOP_SRCDIR/lib
 324         build_lyxdir = MakeAbsPath("../lib", binpath);
 325         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 326                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 327                                           binpath) + ';';
 328                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 329                         "place... yes" << endl;
 330         } else {
 331                 lyxerr[Debug::INIT]
 332                         << "Checking whether LyX is run in place... no"
 333                         << endl;
 334                 build_lyxdir.erase();
 335         }
 336
 337         // Hardcoded dir
 338         searchpath += LYX_DIR;
 339
 340         // If debugging, show complete search path
 341         lyxerr[Debug::INIT] << "System directory search path: "
 342                             << searchpath << endl;
 343
 344         string const filename = "chkconfig.ltx";
 345         string const temp = FileOpenSearch(searchpath, filename, string());
 346         system_lyxdir = OnlyPath(temp);
 347
 348         // Reduce "path/../path" stuff out of system directory
 349         system_lyxdir = NormalizePath(system_lyxdir);
 350
 351         bool path_shown = false;
 352
 353         // Warn if environment variable is set, but unusable
 354         if (!lyxdir.empty()) {
 355                 if (system_lyxdir != NormalizePath(lyxdir)) {
 356                         lyxerr <<_("LYX_DIR_13x environment variable no good.")
 357                                << '\n'
 358                                << _("System directory set to: ")
 359                                << system_lyxdir << endl;
 360                         path_shown = true;
 361                 }
 362         }
 363
 364         // Warn the user if we couldn't find "chkconfig.ltx"
 365         if (system_lyxdir == "./") {
 366                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 367                        <<_("Try the '-sysdir' command line parameter or ")
 368                        <<_("set the environment variable LYX_DIR_13x to the "
 369                            "LyX system directory ")
 370                        << _("containing the file `chkconfig.ltx'.") << endl;
 371                 if (!path_shown) {
 372                         FileInfo fi(LYX_DIR);
 373                         if (!fi.exist()) {
 374                                 lyxerr << "Couldn't even find the default LYX_DIR." << endl
 375                                         << "Giving up." << endl;
 376                                 exit(1);
 377                         }
 378                         lyxerr << _("Using built-in default ")
 379                                << LYX_DIR << _(" but expect problems.")
 380                                << endl;
 381                 } else {
 382                         lyxerr << _("Expect problems.") << endl;
 383                 }
 384                 system_lyxdir = LYX_DIR;
 385                 path_shown = true;
 386         }
 387         // Report the system directory if debugging is on
 388         if (!path_shown)
 389                 lyxerr[Debug::INIT] << "System directory: '"
 390                                     << system_lyxdir << '\'' << endl;
 391
 392         //
 393         // Determine user lyx-dir
 394         //
 395
 396         // Directories are searched in this order:
 397         // 1) -userdir command line parameter
 398         // 2) LYX_USERDIR_13x environment variable
 399         // 3) $HOME/.<name of binary>
 400
 401         // If we had a command line switch, user_lyxdir is already set
 402         bool explicit_userdir = true;
 403         if (user_lyxdir.empty()) {
 404
 405                 // LYX_USERDIR_13x environment variable
 406                 user_lyxdir = GetEnvPath("LYX_USERDIR_13x");
 407
 408                 // default behaviour
 409                 if (user_lyxdir.empty())
 410                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 411                                                         string(".") + PACKAGE);
 412                         explicit_userdir = false;
 413         }
 414
 415         lyxerr[Debug::INIT] << "User LyX directory: '"
 416                             <<  user_lyxdir << '\'' << endl;
 417
 418         // Check that user LyX directory is ok. We don't do that if
 419         // running in batch mode.
 420         if (gui) {
 421                 queryUserLyXDir(explicit_userdir);
 422         } else {
 423                 first_start = false;
 424         }
 425
 426         //
 427         // Shine up lyxrc defaults
 428         //
 429
 430         // Default template path: system_dir/templates
 431         if (lyxrc.template_path.empty()) {
 432                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 433         }
 434
 435         // Default lastfiles file: $HOME/.lyx/lastfiles
 436         if (lyxrc.lastfiles.empty()) {
 437                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 438         }
 439
 440         // Disable gui when either lyxrc or easyparse says so
 441         if (!gui)
 442                 lyxrc.use_gui = false;
 443
 444         // Calculate screen dpi as average of x-DPI and y-DPI:
 445         if (lyxrc.use_gui) {
 446                 lyxrc.dpi = GUIRunTime::getScreenDPI();
 447                 lyxerr[Debug::INIT] << "DPI setting detected to be "
 448                                                 << lyxrc.dpi + 0.5 << endl;
 449         } else {
 450                 lyxrc.dpi = 1; // I hope this is safe
 451         }
 452
 453         //
 454         // Read configuration files
 455         //
 456
 457         readRcFile("lyxrc.defaults");
 458         system_lyxrc = lyxrc;
 459         system_formats = formats;
 460         system_converters = converters;
 461         system_lcolor = lcolor;
 462
 463         // If there is a preferences file we read that instead
 464         // of the old lyxrc file.
 465         if (!readRcFile("preferences"))
 466             readRcFile("lyxrc");
 467
 468         // Read encodings
 469         readEncodingsFile("encodings");
 470         // Read languages
 471         readLanguagesFile("languages");
 472
 473         // Load the layouts
 474         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 475         LyXSetStyle();
 476
 477         // Ensure that we have really read a bind file, so that LyX is
 478         // usable.
 479         lyxrc.readBindFileIfNeeded();
 480
 481         // Read menus
 482         readUIFile(lyxrc.ui_file);
 483
 484         // Bind the X dead keys to the corresponding LyX functions if
 485         // necessary.
 486         if (lyxrc.override_x_deadkeys)
 487                 deadKeyBindings(toplevel_keymap.get());
 488
 489         if (lyxerr.debugging(Debug::LYXRC)) {
 490                 lyxrc.print();
 491         }
 492
 493         // Create temp directory
 494         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 495         system_tempdir = os::getTmpDir();
 496         if (lyxerr.debugging(Debug::INIT)) {
 497                 lyxerr << "LyX tmp dir: `" << system_tempdir << '\'' << endl;
 498         }
 499
 500         // load the lastfiles mini-database
 501         lyxerr[Debug::INIT] << "Reading lastfiles `"
 502                             << lyxrc.lastfiles << "'..." << endl;
 503         lastfiles.reset(new LastFiles(lyxrc.lastfiles,
 504                                       lyxrc.check_lastfiles,
 505                                       lyxrc.num_lastfiles));
 506
 507         // start up the lyxserver. (is this a bit early?) (Lgb)
 508         // 0.12 this will be way to early, we need the GUI to be initialized
 509         // first, so move it for now.
 510         // lyxserver = new LyXServer;
 511 }
 512
 513
 514 // These are the default bindings known to LyX
 515 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 516 {
 517         kbmap->bind("Right", LFUN_RIGHT);
 518         kbmap->bind("Left", LFUN_LEFT);
 519         kbmap->bind("Up", LFUN_UP);
 520         kbmap->bind("Down", LFUN_DOWN);
 521
 522         kbmap->bind("Tab", LFUN_TAB);
 523         kbmap->bind("ISO_Left_Tab", LFUN_TAB); // jbl 2001-23-02
 524
 525         kbmap->bind("Home", LFUN_HOME);
 526         kbmap->bind("End", LFUN_END);
 527         kbmap->bind("Prior", LFUN_PRIOR);
 528         kbmap->bind("Next", LFUN_NEXT);
 529
 530         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 531         //kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 532
 533         kbmap->bind("Delete", LFUN_DELETE);
 534         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 535
 536         // sub- and superscript -MV
 537         kbmap->bind("~S-underscore", LFUN_SUBSCRIPT);
 538         kbmap->bind("~S-asciicircum", LFUN_SUPERSCRIPT);
 539
 540         // kbmap->bindings to enable the use of the numeric keypad
 541         // e.g. Num Lock set
 542         //kbmap->bind("KP_0", LFUN_SELFINSERT);
 543         //kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 544         kbmap->bind("KP_Enter", LFUN_BREAKPARAGRAPH);
 545         //kbmap->bind("KP_1", LFUN_SELFINSERT);
 546         //kbmap->bind("KP_2", LFUN_SELFINSERT);
 547         //kbmap->bind("KP_3", LFUN_SELFINSERT);
 548         //kbmap->bind("KP_4", LFUN_SELFINSERT);
 549         //kbmap->bind("KP_5", LFUN_SELFINSERT);
 550         //kbmap->bind("KP_6", LFUN_SELFINSERT);
 551         //kbmap->bind("KP_Add", LFUN_SELFINSERT);
 552         //kbmap->bind("KP_7", LFUN_SELFINSERT);
 553         //kbmap->bind("KP_8", LFUN_SELFINSERT);
 554         //kbmap->bind("KP_9", LFUN_SELFINSERT);
 555         //kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 556         //kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 557         //kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 558         kbmap->bind("KP_Right", LFUN_RIGHT);
 559         kbmap->bind("KP_Left", LFUN_LEFT);
 560         kbmap->bind("KP_Up", LFUN_UP);
 561         kbmap->bind("KP_Down", LFUN_DOWN);
 562         kbmap->bind("KP_Home", LFUN_HOME);
 563         kbmap->bind("KP_End", LFUN_END);
 564         kbmap->bind("KP_Prior", LFUN_PRIOR);
 565         kbmap->bind("KP_Next", LFUN_NEXT);
 566
 567         kbmap->bind("C-Tab", LFUN_TABINSERT);  // ale970515
 568         kbmap->bind("S-Tab", LFUN_SHIFT_TAB);  // jug20000522
 569         kbmap->bind("S-ISO_Left_Tab", LFUN_SHIFT_TAB); // jbl 2001-23-02
 570 }
 571
 572
 573 void LyX::emergencyCleanup()
 574 {
 575         // what to do about tmpfiles is non-obvious. we would
 576         // like to delete any we find, but our lyxdir might
 577         // contain documents etc. which might be helpful on
 578         // a crash
 579
 580         bufferlist.emergencyWriteAll();
 581         if (lyxserver)
 582                 lyxserver->emergencyCleanup();
 583 }
 584
 585
 586 // LyX can optionally take over the handling of deadkeys
 587 void LyX::deadKeyBindings(kb_keymap * kbmap)
 588 {
 589         // bindKeyings for transparent handling of deadkeys
 590         // The keysyms are gotten from XFree86 X11R6
 591         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 592         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 593         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 594         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 595         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 596         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 597         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 598         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 599         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 600         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 601         // nothing with this name
 602         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 603         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 604         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 605         // nothing with this name either...
 606         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 607         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 608         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 609         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 610 }
 611
 612
 613 // This one is not allowed to use anything on the main form, since that
 614 // one does not exist yet. (Asger)
 615 void LyX::queryUserLyXDir(bool explicit_userdir)
 616 {
 617         // Does user directory exist?
 618         FileInfo fileInfo(user_lyxdir);
 619         if (fileInfo.isOK() && fileInfo.isDir()) {
 620                 first_start = false;
 621                 return;
 622         } else {
 623                 first_start = !explicit_userdir;
 624         }
 625
 626         // If the user specified explicitely a directory, ask whether
 627         // to create it (otherwise, always create it)
 628         if (explicit_userdir &&
 629             !Alert::askQuestion(_("You have specified an invalid LyX directory."),
 630                          _("It is needed to keep your own configuration."),
 631                          _("Should I try to set it up for you (recommended)?"))) {
 632                 lyxerr << _("Running without personal LyX directory.") << endl;
 633                 // No, let's use $HOME instead.
 634                 user_lyxdir = GetEnvPath("HOME");
 635                 return;
 636         }
 637
 638         // Tell the user what is going on
 639         lyxerr << _("LyX: Creating directory ") << user_lyxdir
 640                << _(" and running configure...") << endl;
 641
 642         // Create directory structure
 643         if (!createDirectory(user_lyxdir, 0755)) {
 644                 // Failed, let's use $HOME instead.
 645                 user_lyxdir = GetEnvPath("HOME");
 646                 lyxerr << _("Failed. Will use ") << user_lyxdir
 647                        << _(" instead.") << endl;
 648                 return;
 649         }
 650
 651         // Run configure in user lyx directory
 652         Path p(user_lyxdir);
 653         ::system(AddName(system_lyxdir, "configure").c_str());
 654         lyxerr << "LyX: " << _("Done!") << endl;
 655 }
 656
 657
 658 // Read the rc file `name'
 659 bool LyX::readRcFile(string const & name)
 660 {
 661         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 662
 663         string const lyxrc_path = LibFileSearch(string(), name);
 664         if (!lyxrc_path.empty()) {
 665                 lyxerr[Debug::INIT] << "Found " << name
 666                                     << " in " << lyxrc_path << endl;
 667                 if (lyxrc.read(lyxrc_path) < 0) {
 668                         Alert::alert(_("LyX Warning!"),
 669                                    _("Error while reading ") + lyxrc_path + ".",
 670                                    _("Using built-in defaults."));
 671                         return false;
 672                 }
 673                 return true;
 674         } else {
 675                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 676         }
 677
 678         return false;
 679 }
 680
 681
 682 // Read the ui file `name'
 683 void LyX::readUIFile(string const & name)
 684 {
 685         enum Uitags {
 686                 ui_menuset = 1,
 687                 ui_toolbar,
 688                 ui_last
 689         };
 690
 691         struct keyword_item uitags[ui_last-1] = {
 692                 { "menuset", ui_menuset },
 693                 { "toolbar", ui_toolbar }
 694         };
 695
 696         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 697
 698         string const ui_path = LibFileSearch("ui", name, "ui");
 699
 700         if (ui_path.empty()) {
 701                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 702                 menubackend.defaults();
 703                 return;
 704         }
 705
 706         lyxerr[Debug::INIT] << "Found " << name
 707                             << " in " << ui_path << endl;
 708         LyXLex lex(uitags, ui_last - 1);
 709         lex.setFile(ui_path);
 710         if (!lex.isOK()) {
 711                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 712                        << endl;
 713         }
 714
 715         if (lyxerr.debugging(Debug::PARSER))
 716                 lex.printTable(lyxerr);
 717
 718         while (lex.isOK()) {
 719                 switch (lex.lex()) {
 720                 case ui_menuset:
 721                         menubackend.read(lex);
 722                         break;
 723
 724                 case ui_toolbar:
 725                         toolbardefaults.read(lex);
 726                         break;
 727
 728                 default:
 729                         if (!strip(lex.getString()).empty())
 730                                 lex.printError("LyX::ReadUIFile: "
 731                                                "Unknown menu tag: `$$Token'");
 732                         break;
 733                 }
 734         }
 735 }
 736
 737
 738 // Read the languages file `name'
 739 void LyX::readLanguagesFile(string const & name)
 740 {
 741         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 742
 743         string const lang_path = LibFileSearch(string(), name);
 744         if (lang_path.empty()) {
 745                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 746                 languages.setDefaults();
 747                 return;
 748         }
 749         languages.read(lang_path);
 750 }
 751
 752
 753 // Read the encodings file `name'
 754 void LyX::readEncodingsFile(string const & name)
 755 {
 756         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 757
 758         string const enc_path = LibFileSearch(string(), name);
 759         if (enc_path.empty()) {
 760                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 761                 return;
 762         }
 763         encodings.read(enc_path);
 764 }
 765
 766
 767 namespace {
 768
 769 // Set debugging level and report result to user
 770 void setDebuggingLevel(string const & dbgLevel)
 771 {
 772         lyxerr << _("Setting debug level to ") <<  dbgLevel << endl;
 773         lyxerr.level(Debug::value(dbgLevel));
 774         Debug::showLevel(lyxerr, lyxerr.level());
 775 }
 776
 777
 778 // Give command line help
 779 void commandLineHelp()
 780 {
 781         lyxerr <<
 782                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 783                   "Command line switches (case sensitive):\n"
 784                   "\t-help              summarize LyX usage\n"
 785                   "\t-userdir dir       try to set user directory to dir\n"
 786                   "\t-sysdir dir        try to set system directory to dir\n"
 787                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 788                   "\t-dbg feature[,feature]...\n"
 789                   "                  select the features to debug.\n"
 790                   "                  Type `lyx -dbg' to see the list of features\n"
 791                   "\t-x [--execute] command\n"
 792                   "                  where command is a lyx command.\n"
 793                   "\t-e [--export] fmt\n"
 794                   "                  where fmt is the export format of choice.\n"
 795                   "\t-i [--import] fmt file.xxx\n"
 796                   "                  where fmt is the import format of choice\n"
 797                   "                  and file.xxx is the file to be imported.\n"
 798                   "\t-version        summarize version and build info\n"
 799                   "Check the LyX man page for more details.") << endl;
 800 }
 801
 802 // Give command line version information
 803 void commandLineVersionInfo()
 804 {
 805         lyxerr << "LyX " << lyx_version
 806                << " of " << lyx_release_date << endl;
 807         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 808
 809         lyxerr << lyx_version_info << endl;
 810 }
 811
 812
 813 } // namespace anon
 814
 815
 816 bool LyX::easyParse(int * argc, char * argv[])
 817 {
 818         bool gui = true;
 819         int removeargs = 0; // used when options are read
 820         for (int i = 1; i < *argc; ++i) {
 821                 string arg = argv[i];
 822
 823                 // Check for -dbg int
 824                 if (arg == "-dbg") {
 825                         if (i + 1 < *argc) {
 826                                 setDebuggingLevel(argv[i + 1]);
 827                                 removeargs = 2;
 828                         } else {
 829                                 lyxerr << _("List of supported debug flags:")
 830                                        << endl;
 831                                 Debug::showTags(lyxerr);
 832                                 exit(1);
 833                         }
 834                 }
 835                 // Check for "-sysdir"
 836                 else if (arg == "-sysdir") {
 837                         if (i + 1 < *argc) {
 838                                 system_lyxdir = argv[i + 1];
 839                                 removeargs = 2;
 840                         } else {
 841                                 lyxerr << _("Missing directory for -sysdir switch!")
 842                                        << endl;
 843                                 exit(1);
 844                         }
 845                 }
 846                 // Check for "-userdir"
 847                 else if (arg == "-userdir") {
 848                         if (i + 1 < *argc) {
 849                                 user_lyxdir = argv[i + 1];
 850                                 removeargs = 2;
 851                         } else {
 852                                 lyxerr << _("Missing directory for -userdir switch!")
 853                                        << endl;
 854                                 exit(1);
 855                         }
 856                 }
 857                 // Check for --help or -help
 858                 else if (arg == "--help" || arg == "-help") {
 859                         commandLineHelp();
 860                         exit(0);
 861                 }
 862                 // Check for --version or -version
 863                 else if (arg == "--version" || arg == "-version") {
 864                         commandLineVersionInfo();
 865                         exit(0);
 866                 }
 867                 // FIXME: why is this commented out ?
 868                 // Check for "-nw": No XWindows as for emacs this should
 869                 // give a LyX that could be used in a terminal window.
 870                 //else if (arg == "-nw") {
 871                 //      gui = false;
 872                 //}
 873
 874                 // Check for "-x": Execute commands
 875                 else if (arg == "-x" || arg == "--execute") {
 876                         if (i + 1 < *argc) {
 877                                 batch_command = string(argv[i + 1]);
 878                                 removeargs = 2;
 879                         }
 880                         else
 881                                 lyxerr << _("Missing command string after  -x switch!") << endl;
 882
 883                         // Argh. Setting gui to false segfaults..
 884                         // FIXME: when ? how ?
 885                         // gui = false;
 886                 }
 887
 888                 else if (arg == "-e" || arg == "--export") {
 889                         if (i + 1 < *argc) {
 890                                 string type(argv[i+1]);
 891                                 removeargs = 2;
 892                                 batch_command = "buffer-export " + type;
 893                                 gui = false;
 894                         } else {
 895                                 lyxerr << _("Missing file type [eg latex, "
 896                                             "ps...] after ")
 897                                        << arg << _(" switch!") << endl;
 898                                 exit(1);
 899                         }
 900                 }
 901                 else if (arg == "-i" || arg == "--import") {
 902                         if (i + 1 < *argc) {
 903                                 if (!argv[i+2]) {
 904                                         lyxerr << _("Missing filename for --import") << endl;
 905                                         exit(1);
 906                                 }
 907
 908                                 string const file(argv[i+2]);
 909                                 string const type(argv[i+1]);
 910                                 removeargs = 3;
 911
 912                                 batch_command = "buffer-import " + type + " " + file;
 913                                 lyxerr << "batch_command: "
 914                                        << batch_command << endl;
 915
 916                         } else {
 917                                 lyxerr << _("Missing type [eg latex, "
 918                                             "ps...] after ")
 919                                        << arg << _(" switch!") << endl;
 920                                 exit(1);
 921                         }
 922                 }
 923
 924                 if (removeargs > 0) {
 925                         // Now, remove used arguments by shifting
 926                         // the following ones removeargs places down.
 927                         (*argc) -= removeargs;
 928                         for (int j = i; j < (*argc); ++j)
 929                                 argv[j] = argv[j + removeargs];
 930                         --i; // After shift, check this number again.
 931                         removeargs = 0;
 932                 }
 933
 934         }
 935
 936         return gui;
 937 }