src/lyx_main.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12
  13 #include <cstdlib>
  14 #include <csignal>
  15
  16 #ifdef __GNUG__
  17 #pragma implementation
  18 #endif
  19
  20 #include <version.h>
  21 #include "lyx_main.h"
  22 #include "lyx_gui.h"
  23 #include "LyXView.h"
  24 #include "lyxfunc.h"
  25 #include "frontends/Alert.h"
  26 #include "frontends/GUIRunTime.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 boost::scoped_ptr<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         // 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.reset(new kb_keymap);
  86         defaultKeyBindings(toplevel_keymap.get());
  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.reset(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(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 const splash =
 130                         i18nLibFileSearch("examples", "splash.lyx");
 131                 lyxerr[Debug::INIT] << "Opening splash document "
 132                                << splash << "..." << endl;
 133                 Buffer * loadb = bufferlist.loadLyXFile(splash);
 134                 if (loadb != 0) {
 135                         last_loaded = loadb;
 136                 }
 137         }
 138
 139         if (last_loaded != 0) {
 140                 lyxerr[Debug::INIT] << "Yes we loaded some files." << endl;
 141                 if (lyxrc.use_gui)
 142                         lyxGUI->regBuf(last_loaded);
 143         }
 144
 145         // Execute batch commands if available
 146         if (!batch_command.empty()) {
 147                 lyxerr << "About to handle -x '"
 148                        << batch_command << "'" << endl;
 149
 150                 // no buffer loaded, create one
 151                 if (!last_loaded)
 152                         last_loaded = bufferlist.newFile("tmpfile", string());
 153
 154                 // try to dispatch to last loaded buffer first
 155                 bool dispatched = last_loaded->dispatch(batch_command);
 156
 157                 // if this was successful, return.
 158                 // Maybe we could do something more clever than aborting...
 159                 if (dispatched) {
 160                         lyxerr << "We are done!" << endl;
 161                         QuitLyX();
 162                         return;
 163                 }
 164
 165                 // otherwise, let the GUI handle the batch command
 166                 lyxGUI->regBuf(last_loaded);
 167                 lyxGUI->getLyXView()->getLyXFunc()->dispatch(batch_command);
 168
 169                 // fall through...
 170         }
 171
 172         // Let the ball begin...
 173         lyxGUI->runTime();
 174 }
 175
 176
 177 // A destructor is always necessary  (asierra-970604)
 178 LyX::~LyX()
 179 {
 180 }
 181
 182
 183 extern "C" {
 184
 185 static
 186 void error_handler(int err_sig)
 187 {
 188         switch (err_sig) {
 189         case SIGHUP:
 190                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 191                 break;
 192         case SIGINT:
 193                 // no comments
 194                 break;
 195         case SIGFPE:
 196                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 197                 break;
 198         case SIGSEGV:
 199                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 200                 lyxerr <<
 201                         "Sorry, you have found a bug in LyX. "
 202                         "Please read the bug-reporting instructions "
 203                         "in Help->Introduction and send us a bug report, "
 204                         "if necessary. Thanks !" << endl;
 205                 break;
 206         case SIGTERM:
 207                 // no comments
 208                 break;
 209         }
 210
 211         // Deinstall the signal handlers
 212         signal(SIGHUP, SIG_DFL);
 213         signal(SIGINT, SIG_DFL);
 214         signal(SIGFPE, SIG_DFL);
 215         signal(SIGSEGV, SIG_DFL);
 216         signal(SIGTERM, SIG_DFL);
 217
 218         LyX::emergencyCleanup();
 219
 220         lyxerr << "Bye." << endl;
 221         if (err_sig!= SIGHUP &&
 222            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 223                 lyx::abort();
 224         exit(0);
 225 }
 226
 227 }
 228
 229
 230 void LyX::init(bool gui)
 231 {
 232         // Install the signal handlers
 233         signal(SIGHUP, error_handler);
 234         signal(SIGFPE, error_handler);
 235         signal(SIGSEGV, error_handler);
 236         signal(SIGINT, error_handler);
 237         signal(SIGTERM, error_handler);
 238
 239         //
 240         // Determine path of binary
 241         //
 242
 243         string fullbinpath;
 244         string binpath = os::binpath();
 245         string binname = os::binname();
 246         fullbinpath = binpath;
 247
 248         if (binpath.empty()) {
 249                 lyxerr << _("Warning: could not determine path of binary.")
 250                        << "\n"
 251                        << _("If you have problems, try starting LyX with an absolute path.")
 252                        << endl;
 253         }
 254         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 255
 256         //
 257         // Determine system directory.
 258         //
 259
 260         // Directories are searched in this order:
 261         // 1) -sysdir command line parameter
 262         // 2) LYX_DIR_11x environment variable
 263         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 264         // 4) <path of binary>/../share/<name of binary>/
 265         // 4a) repeat 4 after following the Symlink if <path of
 266         //     binary> is a symbolic link.
 267         // 5) hardcoded lyx_dir
 268         // The directory is checked for the presence of the file
 269         // "chkconfig.ltx", and if that is present, the directory
 270         // is accepted as the system directory.
 271         // If no chkconfig.ltx file is found, a warning is given,
 272         // and the hardcoded lyx_dir is used.
 273
 274         // If we had a command line switch, system_lyxdir is already set
 275         string searchpath;
 276         if (!system_lyxdir.empty())
 277                 searchpath= MakeAbsPath(system_lyxdir) + ';';
 278
 279         // LYX_DIR_11x environment variable
 280         string const lyxdir = GetEnvPath("LYX_DIR_11x");
 281
 282         if (!lyxdir.empty()) {
 283                 lyxerr[Debug::INIT] << "LYX_DIR_11x: " << lyxdir << endl;
 284                 searchpath += lyxdir + ';';
 285         }
 286
 287         // <path of binary>/TOP_SRCDIR/lib
 288         build_lyxdir = MakeAbsPath("../lib", binpath);
 289         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 290                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 291                                           binpath) + ';';
 292                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 293                         "place... yes" << endl;
 294         } else {
 295                 lyxerr[Debug::INIT]
 296                         << "Checking whether LyX is run in place... no"
 297                         << endl;
 298                 build_lyxdir.erase();
 299         }
 300
 301         bool followlink;
 302         do {
 303           // Path of binary/../share/name of binary/
 304                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 305                       OnlyFilename(binname)) + ';';
 306
 307           // Follow Symlinks
 308                 FileInfo file(fullbinpath, true);
 309                 followlink = file.isLink();
 310                 if (followlink) {
 311                         string link;
 312                         if (LyXReadLink(fullbinpath, link)) {
 313                                 fullbinpath = link;
 314                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 315                         }
 316                         else {
 317                                 followlink = false;
 318                         }
 319                 }
 320         } while (followlink);
 321
 322         // Hardcoded dir
 323         searchpath += LYX_DIR;
 324
 325         // If debugging, show complete search path
 326         lyxerr[Debug::INIT] << "System directory search path: "
 327                             << searchpath << endl;
 328
 329         string const filename = "chkconfig.ltx";
 330         string const temp = FileOpenSearch(searchpath, filename, string());
 331         system_lyxdir = OnlyPath(temp);
 332
 333         // Reduce "path/../path" stuff out of system directory
 334         system_lyxdir = NormalizePath(system_lyxdir);
 335
 336         bool path_shown = false;
 337
 338         // Warn if environment variable is set, but unusable
 339         if (!lyxdir.empty()) {
 340                 if (system_lyxdir != NormalizePath(lyxdir)) {
 341                         lyxerr <<_("LYX_DIR_11x environment variable no good.")
 342                                << '\n'
 343                                << _("System directory set to: ")
 344                                << system_lyxdir << endl;
 345                         path_shown = true;
 346                 }
 347         }
 348
 349         // Warn the user if we couldn't find "chkconfig.ltx"
 350         if (system_lyxdir == "./") {
 351                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 352                        <<_("Try the '-sysdir' command line parameter or ")
 353                        <<_("set the environment variable LYX_DIR_11x to the "
 354                            "LyX system directory ")
 355                        << _("containing the file `chkconfig.ltx'.") << endl;
 356                 if (!path_shown) {
 357                         FileInfo fi(LYX_DIR);
 358                         if (!fi.exist()) {
 359                                 lyxerr << "Couldn't even find the default LYX_DIR." << endl
 360                                         << "Giving up." << endl;
 361                                 exit(1);
 362                         }
 363                         lyxerr << _("Using built-in default ")
 364                                << LYX_DIR << _(" but expect problems.")
 365                                << endl;
 366                 } else {
 367                         lyxerr << _("Expect problems.") << endl;
 368                 }
 369                 system_lyxdir = LYX_DIR;
 370                 path_shown = true;
 371         }
 372         // Report the system directory if debugging is on
 373         if (!path_shown)
 374                 lyxerr[Debug::INIT] << "System directory: '"
 375                                     << system_lyxdir << '\'' << endl;
 376
 377         //
 378         // Determine user lyx-dir
 379         //
 380
 381         // Directories are searched in this order:
 382         // 1) -userdir command line parameter
 383         // 2) LYX_USERDIR_11x environment variable
 384         // 3) $HOME/.<name of binary>
 385
 386         // If we had a command line switch, user_lyxdir is already set
 387         bool explicit_userdir = true;
 388         if (user_lyxdir.empty()) {
 389
 390                 // LYX_USERDIR_11x environment variable
 391                 user_lyxdir = GetEnvPath("LYX_USERDIR_11x");
 392
 393                 // default behaviour
 394                 if (user_lyxdir.empty())
 395                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 396                                                         string(".") + PACKAGE);
 397                         explicit_userdir = false;
 398         }
 399
 400         lyxerr[Debug::INIT] << "User LyX directory: '"
 401                             <<  user_lyxdir << '\'' << endl;
 402
 403         // Check that user LyX directory is ok. We don't do that if
 404         // running in batch mode.
 405         if (gui) {
 406                 queryUserLyXDir(explicit_userdir);
 407         } else {
 408                 first_start = false;
 409         }
 410
 411         //
 412         // Shine up lyxrc defaults
 413         //
 414
 415         // Default template path: system_dir/templates
 416         if (lyxrc.template_path.empty()){
 417                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 418         }
 419
 420         // Default lastfiles file: $HOME/.lyx/lastfiles
 421         if (lyxrc.lastfiles.empty()){
 422                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 423         }
 424
 425         // Disable gui when either lyxrc or easyparse says so
 426         if (!gui)
 427                 lyxrc.use_gui = false;
 428
 429         // Calculate screen dpi as average of x-DPI and y-DPI:
 430         if (lyxrc.use_gui) {
 431                 lyxrc.dpi = GUIRunTime::getScreenDPI();
 432                 lyxerr[Debug::INIT] << "DPI setting detected to be "
 433                                                 << lyxrc.dpi + 0.5 << endl;
 434         } else {
 435                 lyxrc.dpi = 1; // I hope this is safe
 436         }
 437
 438         //
 439         // Read configuration files
 440         //
 441
 442         readRcFile("lyxrc.defaults");
 443         system_lyxrc = lyxrc;
 444         system_formats = formats;
 445         system_converters = converters;
 446         system_lcolor = lcolor;
 447
 448         // If there is a preferences file we read that instead
 449         // of the old lyxrc file.
 450         if (!readRcFile("preferences"))
 451             readRcFile("lyxrc");
 452
 453         // Read encodings
 454         readEncodingsFile("encodings");
 455         // Read languages
 456         readLanguagesFile("languages");
 457
 458         // Load the layouts
 459         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 460         LyXSetStyle();
 461
 462         // Ensure that we have really read a bind file, so that LyX is
 463         // usable.
 464         lyxrc.readBindFileIfNeeded();
 465
 466         // Read menus
 467         readUIFile(lyxrc.ui_file);
 468
 469         // Bind the X dead keys to the corresponding LyX functions if
 470         // necessary.
 471         if (lyxrc.override_x_deadkeys)
 472                 deadKeyBindings(toplevel_keymap.get());
 473
 474         if (lyxerr.debugging(Debug::LYXRC)) {
 475                 lyxrc.print();
 476         }
 477
 478         // Create temp directory
 479         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 480         system_tempdir = os::getTmpDir();
 481         if (lyxerr.debugging(Debug::INIT)) {
 482                 lyxerr << "LyX tmp dir: `" << system_tempdir << '\'' << endl;
 483         }
 484
 485         // load the lastfiles mini-database
 486         lyxerr[Debug::INIT] << "Reading lastfiles `"
 487                             << lyxrc.lastfiles << "'..." << endl;
 488         lastfiles.reset(new LastFiles(lyxrc.lastfiles,
 489                                       lyxrc.check_lastfiles,
 490                                       lyxrc.num_lastfiles));
 491
 492         // start up the lyxserver. (is this a bit early?) (Lgb)
 493         // 0.12 this will be way to early, we need the GUI to be initialized
 494         // first, so move it for now.
 495         // lyxserver = new LyXServer;
 496 }
 497
 498
 499 // These are the default bindings known to LyX
 500 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 501 {
 502         kbmap->bind("Right", LFUN_RIGHT);
 503         kbmap->bind("Left", LFUN_LEFT);
 504         kbmap->bind("Up", LFUN_UP);
 505         kbmap->bind("Down", LFUN_DOWN);
 506
 507         kbmap->bind("Tab", LFUN_TAB);
 508         kbmap->bind("ISO_Left_Tab", LFUN_TAB); // jbl 2001-23-02
 509
 510         kbmap->bind("Home", LFUN_HOME);
 511         kbmap->bind("End", LFUN_END);
 512         kbmap->bind("Prior", LFUN_PRIOR);
 513         kbmap->bind("Next", LFUN_NEXT);
 514
 515         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 516         //kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 517
 518         kbmap->bind("Delete", LFUN_DELETE);
 519         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 520
 521         // sub- and superscript -MV
 522         kbmap->bind("~S-underscore", LFUN_SUBSCRIPT);
 523         kbmap->bind("~S-asciicircum", LFUN_SUPERSCRIPT);
 524
 525         // kbmap->bindings to enable the use of the numeric keypad
 526         // e.g. Num Lock set
 527         //kbmap->bind("KP_0", LFUN_SELFINSERT);
 528         //kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 529         kbmap->bind("KP_Enter", LFUN_BREAKPARAGRAPH);
 530         //kbmap->bind("KP_1", LFUN_SELFINSERT);
 531         //kbmap->bind("KP_2", LFUN_SELFINSERT);
 532         //kbmap->bind("KP_3", LFUN_SELFINSERT);
 533         //kbmap->bind("KP_4", LFUN_SELFINSERT);
 534         //kbmap->bind("KP_5", LFUN_SELFINSERT);
 535         //kbmap->bind("KP_6", LFUN_SELFINSERT);
 536         //kbmap->bind("KP_Add", LFUN_SELFINSERT);
 537         //kbmap->bind("KP_7", LFUN_SELFINSERT);
 538         //kbmap->bind("KP_8", LFUN_SELFINSERT);
 539         //kbmap->bind("KP_9", LFUN_SELFINSERT);
 540         //kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 541         //kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 542         //kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 543         kbmap->bind("KP_Right", LFUN_RIGHT);
 544         kbmap->bind("KP_Left", LFUN_LEFT);
 545         kbmap->bind("KP_Up", LFUN_UP);
 546         kbmap->bind("KP_Down", LFUN_DOWN);
 547         kbmap->bind("KP_Home", LFUN_HOME);
 548         kbmap->bind("KP_End", LFUN_END);
 549         kbmap->bind("KP_Prior", LFUN_PRIOR);
 550         kbmap->bind("KP_Next", LFUN_NEXT);
 551
 552         kbmap->bind("C-Tab", LFUN_TABINSERT);  // ale970515
 553         kbmap->bind("S-Tab", LFUN_SHIFT_TAB);  // jug20000522
 554         kbmap->bind("S-ISO_Left_Tab", LFUN_SHIFT_TAB); // jbl 2001-23-02
 555 }
 556
 557
 558 void LyX::emergencyCleanup()
 559 {
 560         // what to do about tmpfiles is non-obvious. we would
 561         // like to delete any we find, but our lyxdir might
 562         // contain documents etc. which might be helpful on
 563         // a crash
 564
 565         bufferlist.emergencyWriteAll();
 566         if (lyxserver)
 567                 lyxserver->emergencyCleanup();
 568 }
 569
 570
 571 // LyX can optionally take over the handling of deadkeys
 572 void LyX::deadKeyBindings(kb_keymap * kbmap)
 573 {
 574         // bindKeyings for transparent handling of deadkeys
 575         // The keysyms are gotten from XFree86 X11R6
 576         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 577         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 578         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 579         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 580         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 581         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 582         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 583         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 584         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 585         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 586         // nothing with this name
 587         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 588         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 589         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 590         // nothing with this name either...
 591         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 592         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 593         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 594         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 595 }
 596
 597
 598 // This one is not allowed to use anything on the main form, since that
 599 // one does not exist yet. (Asger)
 600 void LyX::queryUserLyXDir(bool explicit_userdir)
 601 {
 602         // Does user directory exist?
 603         FileInfo fileInfo(user_lyxdir);
 604         if (fileInfo.isOK() && fileInfo.isDir()) {
 605                 first_start = false;
 606                 return;
 607         } else {
 608                 first_start = !explicit_userdir;
 609         }
 610
 611         // If the user specified explicitely a directory, ask whether
 612         // to create it (otherwise, always create it)
 613         if (explicit_userdir &&
 614             !Alert::askQuestion(_("You have specified an invalid LyX directory."),
 615                          _("It is needed to keep your own configuration."),
 616                          _("Should I try to set it up for you (recommended)?"))) {
 617                 lyxerr << _("Running without personal LyX directory.") << endl;
 618                 // No, let's use $HOME instead.
 619                 user_lyxdir = GetEnvPath("HOME");
 620                 return;
 621         }
 622
 623         // Tell the user what is going on
 624         lyxerr << _("LyX: Creating directory ") << user_lyxdir
 625                << _(" and running configure...") << endl;
 626
 627         // Create directory structure
 628         if (!createDirectory(user_lyxdir, 0755)) {
 629                 // Failed, let's use $HOME instead.
 630                 user_lyxdir = GetEnvPath("HOME");
 631                 lyxerr << _("Failed. Will use ") << user_lyxdir
 632                        << _(" instead.") << endl;
 633                 return;
 634         }
 635
 636         // Run configure in user lyx directory
 637         Path p(user_lyxdir);
 638         ::system(AddName(system_lyxdir, "configure").c_str());
 639         lyxerr << "LyX: " << _("Done!") << endl;
 640 }
 641
 642
 643 // Read the rc file `name'
 644 bool LyX::readRcFile(string const & name)
 645 {
 646         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 647
 648         string const lyxrc_path = LibFileSearch(string(), name);
 649         if (!lyxrc_path.empty()){
 650                 lyxerr[Debug::INIT] << "Found " << name
 651                                     << " in " << lyxrc_path << endl;
 652                 if (lyxrc.read(lyxrc_path) < 0) {
 653                         Alert::alert(_("LyX Warning!"),
 654                                    _("Error while reading ") + lyxrc_path + ".",
 655                                    _("Using built-in defaults."));
 656                         return false;
 657                 }
 658                 return true;
 659         } else {
 660                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 661         }
 662
 663         return false;
 664 }
 665
 666
 667 // Read the ui file `name'
 668 void LyX::readUIFile(string const & name)
 669 {
 670         enum Uitags {
 671                 ui_menuset = 1,
 672                 ui_toolbar,
 673                 ui_last
 674         };
 675
 676         struct keyword_item uitags[ui_last-1] = {
 677                 { "menuset", ui_menuset },
 678                 { "toolbar", ui_toolbar }
 679         };
 680
 681         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 682
 683         string const ui_path = LibFileSearch("ui", name, "ui");
 684
 685         if (ui_path.empty()) {
 686                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 687                 menubackend.defaults();
 688                 return;
 689         }
 690
 691         lyxerr[Debug::INIT] << "Found " << name
 692                             << " in " << ui_path << endl;
 693         LyXLex lex(uitags, ui_last - 1);
 694         lex.setFile(ui_path);
 695         if (!lex.isOK()) {
 696                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 697                        << endl;
 698         }
 699
 700         if (lyxerr.debugging(Debug::PARSER))
 701                 lex.printTable(lyxerr);
 702
 703         while (lex.isOK()) {
 704                 switch (lex.lex()) {
 705                 case ui_menuset:
 706                         menubackend.read(lex);
 707                         break;
 708
 709                 case ui_toolbar:
 710                         toolbardefaults.read(lex);
 711                         break;
 712
 713                 default:
 714                         if(!strip(lex.getString()).empty())
 715                                 lex.printError("LyX::ReadUIFile: "
 716                                                "Unknown menu tag: `$$Token'");
 717                         break;
 718                 }
 719         }
 720 }
 721
 722
 723 // Read the languages file `name'
 724 void LyX::readLanguagesFile(string const & name)
 725 {
 726         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 727
 728         string const lang_path = LibFileSearch(string(), name);
 729         if (lang_path.empty()) {
 730                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 731                 languages.setDefaults();
 732                 return;
 733         }
 734         languages.read(lang_path);
 735 }
 736
 737
 738 // Read the encodings file `name'
 739 void LyX::readEncodingsFile(string const & name)
 740 {
 741         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 742
 743         string const enc_path = LibFileSearch(string(), name);
 744         if (enc_path.empty()) {
 745                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 746                 return;
 747         }
 748         encodings.read(enc_path);
 749 }
 750
 751
 752 namespace {
 753
 754 // Set debugging level and report result to user
 755 void setDebuggingLevel(string const & dbgLevel)
 756 {
 757         lyxerr << _("Setting debug level to ") <<  dbgLevel << endl;
 758         lyxerr.level(Debug::value(dbgLevel));
 759         Debug::showLevel(lyxerr, lyxerr.level());
 760 }
 761
 762
 763 // Give command line help
 764 void commandLineHelp()
 765 {
 766         lyxerr <<
 767                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 768                   "Command line switches (case sensitive):\n"
 769                   "\t-help              summarize LyX usage\n"
 770                   "\t-userdir dir       try to set user directory to dir\n"
 771                   "\t-sysdir dir        try to set system directory to dir\n"
 772                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 773                   "\t-dbg feature[,feature]...\n"
 774                   "                  select the features to debug.\n"
 775                   "                  Type `lyx -dbg' to see the list of features\n"
 776                   "\t-x [--execute] command\n"
 777                   "                  where command is a lyx command.\n"
 778                   "\t-e [--export] fmt\n"
 779                   "                  where fmt is the export format of choice.\n"
 780                   "\t-i [--import] fmt file.xxx\n"
 781                   "                  where fmt is the import format of choice\n"
 782                   "                  and file.xxx is the file to be imported.\n"
 783                   "\t-version        summarize version and build info\n"
 784                   "Check the LyX man page for more details.") << endl;
 785 }
 786
 787 // Give command line version information
 788 void commandLineVersionInfo()
 789 {
 790         lyxerr << "LyX " << lyx_version
 791                << " of " << lyx_release_date << endl;
 792         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 793
 794         lyxerr << lyx_version_info << endl;
 795 }
 796
 797
 798 } // namespace anon
 799
 800
 801 bool LyX::easyParse(int * argc, char * argv[])
 802 {
 803         bool gui = true;
 804         int removeargs = 0; // used when options are read
 805         for (int i = 1; i < *argc; ++i) {
 806                 string arg = argv[i];
 807
 808                 // Check for -dbg int
 809                 if (arg == "-dbg") {
 810                         if (i + 1 < *argc) {
 811                                 setDebuggingLevel(argv[i + 1]);
 812                                 removeargs = 2;
 813                         } else {
 814                                 lyxerr << _("List of supported debug flags:")
 815                                        << endl;
 816                                 Debug::showTags(lyxerr);
 817                                 exit(0);
 818                         }
 819                 }
 820                 // Check for "-sysdir"
 821                 else if (arg == "-sysdir") {
 822                         if (i + 1 < *argc) {
 823                                 system_lyxdir = argv[i + 1];
 824                                 removeargs = 2;
 825                         } else {
 826                                 lyxerr << _("Missing directory for -sysdir switch!")
 827                                        << endl;
 828                                 exit(0);
 829                         }
 830                 }
 831                 // Check for "-userdir"
 832                 else if (arg == "-userdir") {
 833                         if (i + 1 < *argc) {
 834                                 user_lyxdir = argv[i + 1];
 835                                 removeargs = 2;
 836                         } else {
 837                                 lyxerr << _("Missing directory for -userdir switch!")
 838                                        << endl;
 839                                 exit(0);
 840                         }
 841                 }
 842                 // Check for --help or -help
 843                 else if (arg == "--help" || arg == "-help") {
 844                         commandLineHelp();
 845                         exit(0);
 846                 }
 847                 // Check for --version or -version
 848                 else if (arg == "--version" || arg == "-version") {
 849                         commandLineVersionInfo();
 850                         exit(0);
 851                 }
 852                 // Check for "-nw": No XWindows as for emacs this should
 853                 // give a LyX that could be used in a terminal window.
 854                 //else if (arg == "-nw") {
 855                 //      gui = false;
 856                 //}
 857
 858                 // Check for "-x": Execute commands
 859                 else if (arg == "-x" || arg == "--execute") {
 860                         if (i + 1 < *argc) {
 861                                 batch_command = string(argv[i + 1]);
 862                                 removeargs = 2;
 863                         }
 864                         else
 865                                 lyxerr << _("Missing command string after  -x switch!") << endl;
 866
 867                         // Argh. Setting gui to false segfaults..
 868                         //gui = false;
 869                 }
 870
 871                 else if (arg == "-e" || arg == "--export") {
 872                         if (i + 1 < *argc) {
 873                                 string type(argv[i+1]);
 874                                 removeargs = 2;
 875                                 batch_command = "buffer-export " + type;
 876                                 gui = false;
 877                         } else
 878                                 lyxerr << _("Missing file type [eg latex, "
 879                                             "ps...] after ")
 880                                        << arg << _(" switch!") << endl;
 881                 }
 882                 else if (arg == "-i" || arg == "--import") {
 883                         if (i + 1 < *argc) {
 884                                 string const type(argv[i+1]);
 885                                 string const file(argv[i+2]);
 886                                 removeargs = 3;
 887
 888                                 batch_command = "buffer-import " + type + " " + file;
 889                                 lyxerr << "batch_command: "
 890                                        << batch_command << endl;
 891
 892                         } else
 893                                 lyxerr << _("Missing type [eg latex, "
 894                                             "ps...] after ")
 895                                        << arg << _(" switch!") << endl;
 896                 }
 897
 898                 if (removeargs > 0) {
 899                         // Now, remove used arguments by shifting
 900                         // the following ones removeargs places down.
 901                         (*argc) -= removeargs;
 902                         for (int j = i; j < (*argc); ++j)
 903                                 argv[j] = argv[j + removeargs];
 904                         --i; // After shift, check this number again.
 905                         removeargs = 0;
 906                 }
 907
 908         }
 909
 910         return gui;
 911 }