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 <version_info.h>
  22 #include "lyx_main.h"
  23 #include "lyx_gui.h"
  24 #include "LyXView.h"
  25 #include "lyxfunc.h"
  26 #include "lyx_gui_misc.h"
  27 #include "lyxrc.h"
  28 #include "support/path.h"
  29 #include "support/filetools.h"
  30 #include "buffer.h"
  31 #include "bufferlist.h"
  32 #include "debug.h"
  33 #include "support/FileInfo.h"
  34 #include "lastfiles.h"
  35 #include "intl.h"
  36 #include "lyxserver.h"
  37 #include "layout.h"
  38 #include "gettext.h"
  39 #include "kbmap.h"
  40 #include "MenuBackend.h"
  41 #include "ToolbarDefaults.h"
  42 #include "lyxlex.h"
  43 #include "encoding.h"
  44 #include "converter.h"
  45 #include "language.h"
  46 #include "support/os.h"
  47
  48 using std::endl;
  49
  50 #ifndef CXX_GLOBAL_CSTD
  51 using std::signal;
  52 #endif
  53
  54 extern void LoadLyXFile(string const &);
  55 extern void QuitLyX();
  56
  57 string system_lyxdir;
  58 string build_lyxdir;
  59 string system_tempdir;
  60 string user_lyxdir;     // Default $HOME/.lyx
  61
  62 // Should this be kept global? Asger says Yes.
  63 DebugStream lyxerr;
  64
  65 LastFiles * lastfiles;
  66
  67 // This is the global bufferlist object
  68 BufferList bufferlist;
  69
  70 LyXServer * lyxserver = 0;
  71 // this should be static, but I need it in buffer.C
  72 bool finished = false;  // flag, that we are quitting the program
  73
  74 // convenient to have it here.
  75 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  76
  77
  78 LyX::LyX(int * argc, char * argv[])
  79 {
  80         // Prevent crash with --help
  81         lyxGUI = 0;
  82         lastfiles = 0;
  83
  84         // Here we need to parse the command line. At least
  85         // we need to parse for "-dbg" and "-help"
  86         bool gui = easyParse(argc, argv);
  87
  88         // Global bindings (this must be done as early as possible.) (Lgb)
  89         toplevel_keymap.reset(new kb_keymap);
  90         defaultKeyBindings(toplevel_keymap.get());
  91
  92         // Make the GUI object, and let it take care of the
  93         // command line arguments that concerns it.
  94         lyxerr[Debug::INIT] << "Initializing LyXGUI..." << endl;
  95         lyxGUI = new LyXGUI(this, argc, argv, gui);
  96         lyxerr[Debug::INIT] << "Initializing LyXGUI...done" << endl;
  97
  98         // Now the GUI and LyX have taken care of their arguments, so
  99         // the only thing left on the command line should be
 100         // filenames. Let's check anyway.
 101         for (int argi = 1; argi < *argc ; ++argi) {
 102                 if (argv[argi][0] == '-') {
 103                         lyxerr << _("Wrong command line option `")
 104                                << argv[argi]
 105                                << _("'. Exiting.") << endl;
 106                         exit(0);
 107                 }
 108         }
 109
 110         // Initialization of LyX (reads lyxrc and more)
 111         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 112         init(gui);
 113         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 114
 115         lyxGUI->init();
 116
 117         // Load the files specified in the command line.
 118         if ((*argc) == 2)
 119                 lyxerr[Debug::INFO] << "Opening document..." << endl;
 120         else if ((*argc) > 2)
 121                 lyxerr[Debug::INFO] << "Opening documents..." << endl;
 122
 123         Buffer * last_loaded = 0;
 124
 125         for (int argi = (*argc) - 1; argi >= 1; --argi) {
 126                 Buffer * loadb = bufferlist.loadLyXFile(argv[argi]);
 127                 if (loadb != 0) {
 128                         last_loaded = loadb;
 129                 }
 130         }
 131
 132         if (first_start) {
 133                 string const splash =
 134                         i18nLibFileSearch("examples", "splash.lyx");
 135                 lyxerr[Debug::INIT] << "Opening splash document "
 136                                << splash << "..." << endl;
 137                 Buffer * loadb = bufferlist.loadLyXFile(splash);
 138                 if (loadb != 0) {
 139                         last_loaded = loadb;
 140                 }
 141         }
 142
 143         if (last_loaded != 0) {
 144                 lyxerr[Debug::INIT] << "Yes we loaded some files." << endl;
 145                 if (lyxrc.use_gui)
 146                         lyxGUI->regBuf(last_loaded);
 147         }
 148
 149         // Execute batch commands if available
 150         if (!batch_command.empty()) {
 151                 lyxerr << "About to handle -x '"
 152                        << batch_command << "'" << endl;
 153
 154                 // no buffer loaded, create one
 155                 if (!last_loaded)
 156                         last_loaded = bufferlist.newFile("tmpfile", string());
 157
 158                 // try to dispatch to last loaded buffer first
 159                 bool dispatched = last_loaded->dispatch(batch_command);
 160
 161                 // if this was successful, return.
 162                 // Maybe we could do something more clever than aborting...
 163                 if (dispatched) {
 164                         lyxerr << "We are done!" << endl;
 165                         QuitLyX();
 166                         return;
 167                 }
 168
 169                 // otherwise, let the GUI handle the batch command
 170                 lyxGUI->regBuf(last_loaded);
 171                 lyxGUI->getLyXView()->getLyXFunc()->dispatch(batch_command);
 172
 173                 // fall through...
 174         }
 175
 176         // Let the ball begin...
 177         lyxGUI->runTime();
 178 }
 179
 180
 181 // A destructor is always necessary  (asierra-970604)
 182 LyX::~LyX()
 183 {
 184         delete lastfiles;
 185         delete lyxGUI;
 186 }
 187
 188
 189 extern "C" {
 190
 191 static
 192 void error_handler(int err_sig)
 193 {
 194         switch (err_sig) {
 195         case SIGHUP:
 196                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 197                 break;
 198         case SIGINT:
 199                 // no comments
 200                 break;
 201         case SIGFPE:
 202                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 203                 break;
 204         case SIGSEGV:
 205                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 206                 lyxerr <<
 207                         "Sorry, you have found a bug in LyX."
 208                         " If possible, please read 'Known bugs'\n"
 209                         "under the Help menu and then send us "
 210                         "a full bug report. Thanks!" << endl;
 211                 break;
 212         case SIGTERM:
 213                 // no comments
 214                 break;
 215         }
 216
 217         // Deinstall the signal handlers
 218         signal(SIGHUP, SIG_DFL);
 219         signal(SIGINT, SIG_DFL);
 220         signal(SIGFPE, SIG_DFL);
 221         signal(SIGSEGV, SIG_DFL);
 222         signal(SIGTERM, SIG_DFL);
 223
 224         bufferlist.emergencyWriteAll();
 225
 226         lyxerr << "Bye." << endl;
 227         if (err_sig!= SIGHUP &&
 228            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 229                 lyx::abort();
 230         exit(0);
 231 }
 232
 233 }
 234
 235
 236 void LyX::init(bool gui)
 237 {
 238         // Install the signal handlers
 239         signal(SIGHUP, error_handler);
 240         signal(SIGFPE, error_handler);
 241         signal(SIGSEGV, error_handler);
 242         signal(SIGINT, error_handler);
 243         signal(SIGTERM, error_handler);
 244
 245         //
 246         // Determine path of binary
 247         //
 248
 249         string fullbinpath;
 250         string binpath = os::binpath();
 251         string binname = os::binname();
 252         fullbinpath = binpath;
 253
 254         if (binpath.empty()) {
 255                 lyxerr << _("Warning: could not determine path of binary.")
 256                        << "\n"
 257                        << _("If you have problems, try starting LyX with an absolute path.")
 258                        << endl;
 259         }
 260         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 261
 262         //
 263         // Determine system directory.
 264         //
 265
 266         // Directories are searched in this order:
 267         // 1) -sysdir command line parameter
 268         // 2) LYX_DIR_11x environment variable
 269         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 270         // 4) <path of binary>/../share/<name of binary>/
 271         // 4a) repeat 4 after following the Symlink if <path of
 272         //     binary> is a symbolic link.
 273         // 5) hardcoded lyx_dir
 274         // The directory is checked for the presence of the file
 275         // "chkconfig.ltx", and if that is present, the directory
 276         // is accepted as the system directory.
 277         // If no chkconfig.ltx file is found, a warning is given,
 278         // and the hardcoded lyx_dir is used.
 279
 280         // If we had a command line switch, system_lyxdir is already set
 281         string searchpath;
 282         if (!system_lyxdir.empty())
 283                 searchpath= MakeAbsPath(system_lyxdir) + ';';
 284
 285         // LYX_DIR_11x environment variable
 286         string const lyxdir = GetEnvPath("LYX_DIR_11x");
 287
 288         if (!lyxdir.empty()) {
 289                 lyxerr[Debug::INIT] << "LYX_DIR_11x: " << lyxdir << endl;
 290                 searchpath += lyxdir + ';';
 291         }
 292
 293         // <path of binary>/TOP_SRCDIR/lib
 294         build_lyxdir = MakeAbsPath("../lib", binpath);
 295         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 296                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 297                                           binpath) + ';';
 298                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 299                         "place... yes" << endl;
 300         } else {
 301                 lyxerr[Debug::INIT]
 302                         << "Checking whether LyX is run in place... no"
 303                         << endl;
 304                 build_lyxdir.erase();
 305         }
 306
 307         bool followlink;
 308         do {
 309           // Path of binary/../share/name of binary/
 310                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 311                       OnlyFilename(binname)) + ';';
 312
 313           // Follow Symlinks
 314                 FileInfo file(fullbinpath, true);
 315                 followlink = file.isLink();
 316                 if (followlink) {
 317                         string link;
 318                         if (LyXReadLink(fullbinpath, link)) {
 319                                 fullbinpath = link;
 320                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 321                         }
 322                         else {
 323                                 followlink = false;
 324                         }
 325                 }
 326         } while (followlink);
 327
 328         // Hardcoded dir
 329         searchpath += LYX_DIR;
 330
 331         // If debugging, show complete search path
 332         lyxerr[Debug::INIT] << "System directory search path: "
 333                             << searchpath << endl;
 334
 335         string const filename = "chkconfig.ltx";
 336         string const temp = FileOpenSearch(searchpath, filename, string());
 337         system_lyxdir = OnlyPath(temp);
 338
 339         // Reduce "path/../path" stuff out of system directory
 340         system_lyxdir = NormalizePath(system_lyxdir);
 341
 342         bool path_shown = false;
 343
 344         // Warn if environment variable is set, but unusable
 345         if (!lyxdir.empty()) {
 346                 if (system_lyxdir != NormalizePath(lyxdir)) {
 347                         lyxerr <<_("LYX_DIR_11x environment variable no good.")
 348                                << '\n'
 349                                << _("System directory set to: ")
 350                                << system_lyxdir << endl;
 351                         path_shown = true;
 352                 }
 353         }
 354
 355         // Warn the user if we couldn't find "chkconfig.ltx"
 356         if (system_lyxdir == "./") {
 357                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 358                        <<_("Try the '-sysdir' command line parameter or ")
 359                        <<_("set the environment variable LYX_DIR_11x to the "
 360                            "LyX system directory ")
 361                        << _("containing the file `chkconfig.ltx'.") << endl;
 362                 if (!path_shown) {
 363                         FileInfo fi(LYX_DIR);
 364                         if (!fi.exist()) {
 365                                 lyxerr << "Couldn't even find the default LYX_DIR." << endl
 366                                         << "Giving up." << endl;
 367                                 exit(1);
 368                         }
 369                         lyxerr << _("Using built-in default ")
 370                                << LYX_DIR << _(" but expect problems.")
 371                                << endl;
 372                 } else {
 373                         lyxerr << _("Expect problems.") << endl;
 374                 }
 375                 system_lyxdir = LYX_DIR;
 376                 path_shown = true;
 377         }
 378
 379         // Report the system directory if debugging is on
 380         if (!path_shown)
 381                 lyxerr[Debug::INIT] << "System directory: '"
 382                                     << system_lyxdir << '\'' << endl;
 383
 384         //
 385         // Determine user lyx-dir
 386         //
 387
 388         // Directories are searched in this order:
 389         // 1) -userdir command line parameter
 390         // 2) LYX_USERDIR_11x environment variable
 391         // 3) $HOME/.<name of binary>
 392
 393         // If we had a command line switch, user_lyxdir is already set
 394         bool explicit_userdir = true;
 395         if (user_lyxdir.empty()) {
 396
 397                 // LYX_USERDIR_11x environment variable
 398                 user_lyxdir = GetEnvPath("LYX_USERDIR_11x");
 399
 400                 // default behaviour
 401                 if (user_lyxdir.empty())
 402                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 403                                                         string(".") + PACKAGE);
 404                         explicit_userdir = false;
 405         }
 406
 407         lyxerr[Debug::INIT] << "User LyX directory: '"
 408                             <<  user_lyxdir << '\'' << endl;
 409
 410         // Check that user LyX directory is ok. We don't do that if
 411         // running in batch mode.
 412         if (gui) {
 413                 queryUserLyXDir(explicit_userdir);
 414         } else {
 415                 first_start = false;
 416         }
 417
 418         //
 419         // Shine up lyxrc defaults
 420         //
 421
 422         // Default template path: system_dir/templates
 423         if (lyxrc.template_path.empty()){
 424                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 425         }
 426
 427         // Default lastfiles file: $HOME/.lyx/lastfiles
 428         if (lyxrc.lastfiles.empty()){
 429                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 430         }
 431
 432         // Disable gui when either lyxrc or easyparse says so
 433         if (!gui)
 434                 lyxrc.use_gui = false;
 435
 436         // Calculate screen dpi as average of x-DPI and y-DPI:
 437         if (lyxrc.use_gui) {
 438                 lyxrc.dpi = getScreenDPI();
 439                 lyxerr[Debug::INIT] << "DPI setting detected to be "
 440                                                 << lyxrc.dpi + 0.5 << endl;
 441         } else {
 442                 lyxrc.dpi = 1; // I hope this is safe
 443         }
 444
 445         //
 446         // Read configuration files
 447         //
 448
 449         readRcFile("lyxrc.defaults");
 450         system_lyxrc = lyxrc;
 451         system_formats = formats;
 452         system_converters = converters;
 453         system_lcolor = lcolor;
 454
 455         // If there is a preferences file we read that instead
 456         // of the old lyxrc file.
 457         if (!readRcFile("preferences"))
 458             readRcFile("lyxrc");
 459
 460         // Read encodings
 461         readEncodingsFile("encodings");
 462         // Read languages
 463         readLanguagesFile("languages");
 464
 465         // Load the layouts
 466         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 467         LyXSetStyle();
 468
 469         // Ensure that we have really read a bind file, so that LyX is
 470         // usable.
 471         lyxrc.readBindFileIfNeeded();
 472
 473         // Read menus
 474         readUIFile(lyxrc.ui_file);
 475
 476         // Bind the X dead keys to the corresponding LyX functions if
 477         // necessary.
 478         if (lyxrc.override_x_deadkeys)
 479                 deadKeyBindings(toplevel_keymap.get());
 480
 481         if (lyxerr.debugging(Debug::LYXRC)) {
 482                 lyxrc.print();
 483         }
 484
 485         // Create temp directory
 486         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 487         system_tempdir = os::getTmpDir();
 488         if (lyxerr.debugging(Debug::INIT)) {
 489                 lyxerr << "LyX tmp dir: `" << system_tempdir << '\'' << endl;
 490         }
 491
 492         // load the lastfiles mini-database
 493         lyxerr[Debug::INIT] << "Reading lastfiles `"
 494                             << lyxrc.lastfiles << "'..." << endl;
 495         lastfiles = new LastFiles(lyxrc.lastfiles,
 496                                   lyxrc.check_lastfiles,
 497                                   lyxrc.num_lastfiles);
 498
 499         // start up the lyxserver. (is this a bit early?) (Lgb)
 500         // 0.12 this will be way to early, we need the GUI to be initialized
 501         // first, so move it for now.
 502         // lyxserver = new LyXServer;
 503 }
 504
 505
 506 // These are the default bindings known to LyX
 507 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 508 {
 509         kbmap->bind("Right", LFUN_RIGHT);
 510         kbmap->bind("Left", LFUN_LEFT);
 511         kbmap->bind("Up", LFUN_UP);
 512         kbmap->bind("Down", LFUN_DOWN);
 513
 514         kbmap->bind("Tab", LFUN_TAB);
 515         kbmap->bind("ISO_Left_Tab", LFUN_TAB); // jbl 2001-23-02
 516
 517         kbmap->bind("Home", LFUN_HOME);
 518         kbmap->bind("End", LFUN_END);
 519         kbmap->bind("Prior", LFUN_PRIOR);
 520         kbmap->bind("Next", LFUN_NEXT);
 521
 522         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 523         //kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 524
 525         kbmap->bind("Delete", LFUN_DELETE);
 526         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 527
 528         // kbmap->bindings to enable the use of the numeric keypad
 529         // e.g. Num Lock set
 530         //kbmap->bind("KP_0", LFUN_SELFINSERT);
 531         //kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 532         kbmap->bind("KP_Enter", LFUN_BREAKPARAGRAPH);
 533         //kbmap->bind("KP_1", LFUN_SELFINSERT);
 534         //kbmap->bind("KP_2", LFUN_SELFINSERT);
 535         //kbmap->bind("KP_3", LFUN_SELFINSERT);
 536         //kbmap->bind("KP_4", LFUN_SELFINSERT);
 537         //kbmap->bind("KP_5", LFUN_SELFINSERT);
 538         //kbmap->bind("KP_6", LFUN_SELFINSERT);
 539         //kbmap->bind("KP_Add", LFUN_SELFINSERT);
 540         //kbmap->bind("KP_7", LFUN_SELFINSERT);
 541         //kbmap->bind("KP_8", LFUN_SELFINSERT);
 542         //kbmap->bind("KP_9", LFUN_SELFINSERT);
 543         //kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 544         //kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 545         //kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 546         kbmap->bind("KP_Right", LFUN_RIGHT);
 547         kbmap->bind("KP_Left", LFUN_LEFT);
 548         kbmap->bind("KP_Up", LFUN_UP);
 549         kbmap->bind("KP_Down", LFUN_DOWN);
 550         kbmap->bind("KP_Home", LFUN_HOME);
 551         kbmap->bind("KP_End", LFUN_END);
 552         kbmap->bind("KP_Prior", LFUN_PRIOR);
 553         kbmap->bind("KP_Next", LFUN_NEXT);
 554
 555         kbmap->bind("C-Tab", LFUN_TABINSERT);  // ale970515
 556         kbmap->bind("S-Tab", LFUN_SHIFT_TAB);  // jug20000522
 557         kbmap->bind("S-ISO_Left_Tab", LFUN_SHIFT_TAB); // jbl 2001-23-02
 558 }
 559
 560
 561 // LyX can optionally take over the handling of deadkeys
 562 void LyX::deadKeyBindings(kb_keymap * kbmap)
 563 {
 564         // bindKeyings for transparent handling of deadkeys
 565         // The keysyms are gotten from XFree86 X11R6
 566         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 567         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 568         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 569         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 570         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 571         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 572         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 573         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 574         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 575         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 576         // nothing with this name
 577         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 578         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 579         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 580         // nothing with this name either...
 581         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 582         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 583         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 584         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 585 }
 586
 587
 588 // This one is not allowed to use anything on the main form, since that
 589 // one does not exist yet. (Asger)
 590 void LyX::queryUserLyXDir(bool explicit_userdir)
 591 {
 592         // Does user directory exist?
 593         FileInfo fileInfo(user_lyxdir);
 594         if (fileInfo.isOK() && fileInfo.isDir()) {
 595                 first_start = false;
 596                 return;
 597         } else {
 598                 first_start = !explicit_userdir;
 599         }
 600
 601         // If the user specified explicitely a directory, ask whether
 602         // to create it (otherwise, always create it)
 603         if (explicit_userdir &&
 604             !AskQuestion(_("You have specified an invalid LyX directory."),
 605                          _("It is needed to keep your own configuration."),
 606                          _("Should I try to set it up for you (recommended)?"))) {
 607                 lyxerr << _("Running without personal LyX directory.") << endl;
 608                 // No, let's use $HOME instead.
 609                 user_lyxdir = GetEnvPath("HOME");
 610                 return;
 611         }
 612
 613         // Tell the user what is going on
 614         lyxerr << _("LyX: Creating directory ") << user_lyxdir
 615                << _(" and running configure...") << endl;
 616
 617         // Create directory structure
 618         if (!createDirectory(user_lyxdir, 0755)) {
 619                 // Failed, let's use $HOME instead.
 620                 user_lyxdir = GetEnvPath("HOME");
 621                 lyxerr << _("Failed. Will use ") << user_lyxdir
 622                        << _(" instead.") << endl;
 623                 return;
 624         }
 625
 626         // Run configure in user lyx directory
 627         Path p(user_lyxdir);
 628         ::system(AddName(system_lyxdir, "configure").c_str());
 629         lyxerr << "LyX: " << _("Done!") << endl;
 630 }
 631
 632
 633 // Read the rc file `name'
 634 bool LyX::readRcFile(string const & name)
 635 {
 636         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 637
 638         string const lyxrc_path = LibFileSearch(string(), name);
 639         if (!lyxrc_path.empty()){
 640                 lyxerr[Debug::INIT] << "Found " << name
 641                                     << " in " << lyxrc_path << endl;
 642                 if (lyxrc.read(lyxrc_path) < 0) {
 643                         WriteAlert(_("LyX Warning!"),
 644                                    _("Error while reading ") + lyxrc_path + ".",
 645                                    _("Using built-in defaults."));
 646                         return false;
 647                 }
 648                 return true;
 649         } else {
 650                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 651         }
 652
 653         return false;
 654 }
 655
 656
 657 // Read the ui file `name'
 658 void LyX::readUIFile(string const & name)
 659 {
 660         enum Uitags {
 661                 ui_menuset = 1,
 662                 ui_toolbar,
 663                 ui_last
 664         };
 665
 666         struct keyword_item uitags[ui_last-1] = {
 667                 { "menuset", ui_menuset },
 668                 { "toolbar", ui_toolbar }
 669         };
 670
 671         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 672
 673         string const ui_path = LibFileSearch("ui", name, "ui");
 674
 675         if (ui_path.empty()) {
 676                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 677                 menubackend.defaults();
 678                 return;
 679         }
 680
 681         lyxerr[Debug::INIT] << "Found " << name
 682                             << " in " << ui_path << endl;
 683         LyXLex lex(uitags, ui_last - 1);
 684         lex.setFile(ui_path);
 685         if (!lex.isOK()) {
 686                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 687                        << endl;
 688         }
 689
 690         if (lyxerr.debugging(Debug::PARSER))
 691                 lex.printTable(lyxerr);
 692
 693         while (lex.isOK()) {
 694                 switch (lex.lex()) {
 695                 case ui_menuset:
 696                         menubackend.read(lex);
 697                         break;
 698
 699                 case ui_toolbar:
 700                         toolbardefaults.read(lex);
 701                         break;
 702
 703                 default:
 704                         if(!strip(lex.getString()).empty())
 705                                 lex.printError("LyX::ReadUIFile: "
 706                                                "Unknown menu tag: `$$Token'");
 707                         break;
 708                 }
 709         }
 710 }
 711
 712
 713 // Read the languages file `name'
 714 void LyX::readLanguagesFile(string const & name)
 715 {
 716         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 717
 718         string const lang_path = LibFileSearch(string(), name);
 719         if (lang_path.empty()) {
 720                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 721                 languages.setDefaults();
 722                 return;
 723         }
 724         languages.read(lang_path);
 725 }
 726
 727
 728 // Read the encodings file `name'
 729 void LyX::readEncodingsFile(string const & name)
 730 {
 731         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 732
 733         string const enc_path = LibFileSearch(string(), name);
 734         if (enc_path.empty()) {
 735                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 736                 return;
 737         }
 738         encodings.read(enc_path);
 739 }
 740
 741
 742 namespace {
 743
 744 // Set debugging level and report result to user
 745 void setDebuggingLevel(string const & dbgLevel)
 746 {
 747         lyxerr << _("Setting debug level to ") <<  dbgLevel << endl;
 748         lyxerr.level(Debug::value(dbgLevel));
 749         Debug::showLevel(lyxerr, lyxerr.level());
 750 }
 751
 752
 753 // Give command line help
 754 void commandLineHelp()
 755 {
 756         lyxerr <<
 757                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 758                   "Command line switches (case sensitive):\n"
 759                   "\t-help              summarize LyX usage\n"
 760                   "\t-userdir dir       try to set user directory to dir\n"
 761                   "\t-sysdir dir        try to set system directory to dir\n"
 762                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 763                   "\t-dbg feature[,feature]...\n"
 764                   "                  select the features to debug.\n"
 765                   "                  Type `lyx -dbg' to see the list of features\n"
 766                   "\t-x [--execute] command\n"
 767                   "                  where command is a lyx command.\n"
 768                   "\t-e [--export] fmt\n"
 769                   "                  where fmt is the export format of choice.\n"
 770                   "\t-i [--import] fmt file.xxx\n"
 771                   "                  where fmt is the import format of choice\n"
 772                   "                  and file.xxx is the file to be imported.\n"
 773                   "\t-version        summarize version and build info\n"
 774                   "Check the LyX man page for more details.") << endl;
 775 }
 776
 777 // Give command line version information
 778 void commandLineVersionInfo()
 779 {
 780         lyxerr << "LyX " LYX_VERSION << " of " LYX_RELEASE << endl;
 781         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 782
 783         lyxerr << version_info << endl;
 784 }
 785
 786
 787 } // namespace anon
 788
 789
 790 bool LyX::easyParse(int * argc, char * argv[])
 791 {
 792         bool gui = true;
 793         int removeargs = 0; // used when options are read
 794         for (int i = 1; i < *argc; ++i) {
 795                 string arg = argv[i];
 796
 797                 // Check for -dbg int
 798                 if (arg == "-dbg") {
 799                         if (i + 1 < *argc) {
 800                                 setDebuggingLevel(argv[i + 1]);
 801                                 removeargs = 2;
 802                         } else {
 803                                 lyxerr << _("List of supported debug flags:")
 804                                        << endl;
 805                                 Debug::showTags(lyxerr);
 806                                 exit(0);
 807                         }
 808                 }
 809                 // Check for "-sysdir"
 810                 else if (arg == "-sysdir") {
 811                         if (i + 1 < *argc) {
 812                                 system_lyxdir = argv[i + 1];
 813                                 removeargs = 2;
 814                         } else {
 815                                 lyxerr << _("Missing directory for -sysdir switch!")
 816                                        << endl;
 817                                 exit(0);
 818                         }
 819                 }
 820                 // Check for "-userdir"
 821                 else if (arg == "-userdir") {
 822                         if (i + 1 < *argc) {
 823                                 user_lyxdir = argv[i + 1];
 824                                 removeargs = 2;
 825                         } else {
 826                                 lyxerr << _("Missing directory for -userdir switch!")
 827                                        << endl;
 828                                 exit(0);
 829                         }
 830                 }
 831                 // Check for --help or -help
 832                 else if (arg == "--help" || arg == "-help") {
 833                         commandLineHelp();
 834                         exit(0);
 835                 }
 836                 // Check for --version or -version
 837                 else if (arg == "--version" || arg == "-version") {
 838                         commandLineVersionInfo();
 839                         exit(0);
 840                 }
 841                 // Check for "-nw": No XWindows as for emacs this should
 842                 // give a LyX that could be used in a terminal window.
 843                 //else if (arg == "-nw") {
 844                 //      gui = false;
 845                 //}
 846
 847                 // Check for "-x": Execute commands
 848                 else if (arg == "-x" || arg == "--execute") {
 849                         if (i + 1 < *argc) {
 850                                 batch_command = string(argv[i + 1]);
 851                                 removeargs = 2;
 852                         }
 853                         else
 854                                 lyxerr << _("Missing command string after  -x switch!") << endl;
 855
 856                         // Argh. Setting gui to false segfaults..
 857                         //gui = false;
 858                 }
 859
 860                 else if (arg == "-e" || arg == "--export") {
 861                         if (i + 1 < *argc) {
 862                                 string type(argv[i+1]);
 863                                 removeargs = 2;
 864                                 batch_command = "buffer-export " + type;
 865                                 gui = false;
 866                         } else
 867                                 lyxerr << _("Missing file type [eg latex, "
 868                                             "ps...] after ")
 869                                        << arg << _(" switch!") << endl;
 870                 }
 871                 else if (arg == "-i" || arg == "--import") {
 872                         if (i + 1 < *argc) {
 873                                 string type(argv[i+1]);
 874                                 string file(argv[i+2]);
 875                                 removeargs = 3;
 876
 877                                 batch_command = "buffer-import " + type + " " + file;
 878                                 lyxerr << "batch_command: "
 879                                        << batch_command << endl;
 880
 881                         } else
 882                                 lyxerr << _("Missing type [eg latex, "
 883                                             "ps...] after ")
 884                                        << arg << _(" switch!") << endl;
 885                 }
 886
 887                 if (removeargs > 0) {
 888                         // Now, remove used arguments by shifting
 889                         // the following ones removeargs places down.
 890                         (*argc) -= removeargs;
 891                         for (int j = i; j < (*argc); ++j)
 892                                 argv[j] = argv[j + removeargs];
 893                         --i; // After shift, check this number again.
 894                         removeargs = 0;
 895                 }
 896
 897         }
 898
 899         return gui;
 900 }
 901
 902