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
  18 #include "support/filetools.h"
  19 #include "support/lyxlib.h"
  20 #include "support/os.h"
  21 #include "support/FileInfo.h"
  22 #include "support/path.h"
  23 #include "debug.h"
  24 #include "gettext.h"
  25 #include "lyxlex.h"
  26
  27 #include "bufferlist.h"
  28 #include "buffer.h"
  29 #include "lyxserver.h"
  30 #include "kbmap.h"
  31 #include "lyxfunc.h"
  32 #include "ToolbarDefaults.h"
  33 #include "MenuBackend.h"
  34 #include "language.h"
  35 #include "lastfiles.h"
  36 #include "encoding.h"
  37 #include "converter.h"
  38 #include "lyxtextclasslist.h"
  39
  40 #include "frontends/Alert.h"
  41 #include "frontends/lyx_gui.h"
  42
  43 #include <cstdlib>
  44 #include <csignal>
  45
  46 using std::vector;
  47 using std::endl;
  48
  49 #ifndef CXX_GLOBAL_CSTD
  50 using std::exit;
  51 using std::signal;
  52 using std::system;
  53 #endif
  54
  55 extern void LoadLyXFile(string const &);
  56 extern void QuitLyX();
  57
  58 extern LyXServer * lyxserver;
  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 // convenient to have it here.
  73 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  74
  75
  76 LyX::LyX(int & argc, char * argv[])
  77 {
  78         // Here we need to parse the command line. At least
  79         // we need to parse for "-dbg" and "-help"
  80         bool const want_gui = easyParse(argc, argv);
  81
  82         // Global bindings (this must be done as early as possible.) (Lgb)
  83         toplevel_keymap.reset(new kb_keymap);
  84         defaultKeyBindings(toplevel_keymap.get());
  85
  86         if (want_gui) {
  87                 lyx_gui::parse_init(argc, argv);
  88         }
  89
  90         // check for any spurious extra arguments
  91         // other than documents
  92         for (int argi = 1; argi < argc ; ++argi) {
  93                 if (argv[argi][0] == '-') {
  94                         lyxerr << _("Wrong command line option `")
  95                                << argv[argi]
  96                                << _("'. Exiting.") << endl;
  97                         exit(1);
  98                 }
  99         }
 100
 101         // Initialization of LyX (reads lyxrc and more)
 102         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 103         init(want_gui);
 104         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 105
 106         if (want_gui) {
 107                 lyx_gui::parse_lyxrc();
 108         }
 109
 110         vector<string> files;
 111
 112         for (int argi = argc - 1; argi >= 1; --argi) {
 113                 files.push_back(argv[argi]);
 114         }
 115
 116         if (first_start) {
 117                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 118         }
 119
 120         // Execute batch commands if available
 121         if (!batch_command.empty()) {
 122                 lyxerr[Debug::INIT] << "About to handle -x '"
 123                        << batch_command << "'" << endl;
 124
 125                 Buffer * last_loaded = 0;
 126
 127                 vector<string>::iterator it = files.begin();
 128                 vector<string>::iterator end = files.end();
 129                 for (; it != end; ++it) {
 130                         last_loaded = bufferlist.loadLyXFile(*it);
 131                 }
 132
 133                 files.clear();
 134
 135                 // no buffer loaded, create one
 136                 if (!last_loaded)
 137                         last_loaded = bufferlist.newFile("tmpfile", string());
 138
 139                 bool success = false;
 140
 141                 // try to dispatch to last loaded buffer first
 142                 bool const dispatched = last_loaded->dispatch(batch_command, &success);
 143
 144                 if (success) {
 145                         QuitLyX();
 146                         exit(!success);
 147                 }
 148         }
 149
 150         lyx_gui::start(batch_command, files);
 151 }
 152
 153
 154 extern "C" {
 155
 156 static
 157 void error_handler(int err_sig)
 158 {
 159         switch (err_sig) {
 160         case SIGHUP:
 161                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 162                 break;
 163         case SIGINT:
 164                 // no comments
 165                 break;
 166         case SIGFPE:
 167                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 168                 break;
 169         case SIGSEGV:
 170                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 171                 lyxerr <<
 172                         "Sorry, you have found a bug in LyX. "
 173                         "Please read the bug-reporting instructions "
 174                         "in Help->Introduction and send us a bug report, "
 175                         "if necessary. Thanks !" << endl;
 176                 break;
 177         case SIGTERM:
 178                 // no comments
 179                 break;
 180         }
 181
 182         // Deinstall the signal handlers
 183         signal(SIGHUP, SIG_DFL);
 184         signal(SIGINT, SIG_DFL);
 185         signal(SIGFPE, SIG_DFL);
 186         signal(SIGSEGV, SIG_DFL);
 187         signal(SIGTERM, SIG_DFL);
 188
 189         LyX::emergencyCleanup();
 190
 191         lyxerr << "Bye." << endl;
 192         if (err_sig!= SIGHUP &&
 193            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 194                 lyx::abort();
 195         exit(0);
 196 }
 197
 198 }
 199
 200
 201 void LyX::init(bool gui)
 202 {
 203         // Install the signal handlers
 204         signal(SIGHUP, error_handler);
 205         signal(SIGFPE, error_handler);
 206         signal(SIGSEGV, error_handler);
 207         signal(SIGINT, error_handler);
 208         signal(SIGTERM, error_handler);
 209
 210         //
 211         // Determine path of binary
 212         //
 213
 214         string binpath = os::binpath();
 215         string binname = os::binname();
 216         string fullbinname = MakeAbsPath(binname, binpath);
 217
 218         if (binpath.empty()) {
 219                 lyxerr << _("Warning: could not determine path of binary.")
 220                        << "\n"
 221                        << _("If you have problems, try starting LyX with an absolute path.")
 222                        << endl;
 223         }
 224         lyxerr[Debug::INIT] << "Name of binary: " << binname << endl;
 225         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 226
 227         //
 228         // Determine system directory.
 229         //
 230
 231         // Directories are searched in this order:
 232         // 1) -sysdir command line parameter
 233         // 2) LYX_DIR_13x environment variable
 234         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 235         // 4) <path of binary>/../share/<name of binary>/
 236         // 4a) repeat 4 after following the Symlink if <path of
 237         //     binary> is a symbolic link.
 238         // 5) hardcoded lyx_dir
 239         // The directory is checked for the presence of the file
 240         // "chkconfig.ltx", and if that is present, the directory
 241         // is accepted as the system directory.
 242         // If no chkconfig.ltx file is found, a warning is given,
 243         // and the hardcoded lyx_dir is used.
 244
 245         // If we had a command line switch, system_lyxdir is already set
 246         string searchpath;
 247         if (!system_lyxdir.empty())
 248                 searchpath = MakeAbsPath(system_lyxdir) + ';';
 249
 250         // LYX_DIR_13x environment variable
 251         string const lyxdir = GetEnvPath("LYX_DIR_13x");
 252
 253         if (!lyxdir.empty()) {
 254                 lyxerr[Debug::INIT] << "LYX_DIR_13x: " << lyxdir << endl;
 255                 searchpath += lyxdir + ';';
 256         }
 257
 258         string fullbinpath = binpath;
 259         FileInfo file(fullbinname, true);
 260         if (file.isLink()) {
 261                 lyxerr[Debug::INIT] << "binary is a link" << endl;
 262                 string link;
 263                 if (LyXReadLink(fullbinname, link, true)) {
 264                         // Path of binary/../share/name of binary/
 265                         searchpath += NormalizePath(AddPath(binpath,
 266                                                             "../share/")
 267                                                     + OnlyFilename(binname));
 268                         searchpath += ';';
 269                         fullbinpath = link;
 270                         binpath = MakeAbsPath(OnlyPath(fullbinpath));
 271                 }
 272         }
 273
 274         bool followlink;
 275         do {
 276                 // Path of binary/../share/name of binary/
 277                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 278                       OnlyFilename(binname)) + ';';
 279
 280                 // Follow Symlinks
 281                 FileInfo file(fullbinpath, true);
 282                 followlink = file.isLink();
 283                 if (followlink) {
 284                         lyxerr << " directory " << fullbinpath
 285                                << " is a link" << endl;
 286                         string link;
 287                         if (LyXReadLink(fullbinpath, link, true)) {
 288                                 fullbinpath = link;
 289                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 290                         }
 291                         else {
 292                                 followlink = false;
 293                         }
 294                 }
 295         } while (followlink);
 296
 297         // <path of binary>/TOP_SRCDIR/lib
 298         build_lyxdir = MakeAbsPath("../lib", binpath);
 299         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 300                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 301                                           binpath) + ';';
 302                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 303                         "place... yes" << endl;
 304         } else {
 305                 lyxerr[Debug::INIT]
 306                         << "Checking whether LyX is run in place... no"
 307                         << endl;
 308                 build_lyxdir.erase();
 309         }
 310
 311         // Hardcoded dir
 312         searchpath += LYX_DIR;
 313
 314         // If debugging, show complete search path
 315         lyxerr[Debug::INIT] << "System directory search path: "
 316                             << searchpath << endl;
 317
 318         string const filename = "chkconfig.ltx";
 319         string const temp = FileOpenSearch(searchpath, filename, string());
 320         system_lyxdir = OnlyPath(temp);
 321
 322         // Reduce "path/../path" stuff out of system directory
 323         system_lyxdir = NormalizePath(system_lyxdir);
 324
 325         bool path_shown = false;
 326
 327         // Warn if environment variable is set, but unusable
 328         if (!lyxdir.empty()) {
 329                 if (system_lyxdir != NormalizePath(lyxdir)) {
 330                         lyxerr <<_("LYX_DIR_13x environment variable no good.")
 331                                << '\n'
 332                                << _("System directory set to: ")
 333                                << system_lyxdir << endl;
 334                         path_shown = true;
 335                 }
 336         }
 337
 338         // Warn the user if we couldn't find "chkconfig.ltx"
 339         if (system_lyxdir == "./") {
 340                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 341                        <<_("Try the '-sysdir' command line parameter or ")
 342                        <<_("set the environment variable LYX_DIR_13x to the "
 343                            "LyX system directory ")
 344                        << _("containing the file `chkconfig.ltx'.") << endl;
 345                 if (!path_shown) {
 346                         FileInfo fi(LYX_DIR);
 347                         if (!fi.exist()) {
 348                                 lyxerr << "Couldn't even find the default LYX_DIR." << endl
 349                                         << "Giving up." << endl;
 350                                 exit(1);
 351                         }
 352                         lyxerr << _("Using built-in default ")
 353                                << LYX_DIR << _(" but expect problems.")
 354                                << endl;
 355                 } else {
 356                         lyxerr << _("Expect problems.") << endl;
 357                 }
 358                 system_lyxdir = LYX_DIR;
 359                 path_shown = true;
 360         }
 361         // Report the system directory if debugging is on
 362         if (!path_shown)
 363                 lyxerr[Debug::INIT] << "System directory: '"
 364                                     << system_lyxdir << '\'' << endl;
 365
 366         //
 367         // Determine user lyx-dir
 368         //
 369
 370         // Directories are searched in this order:
 371         // 1) -userdir command line parameter
 372         // 2) LYX_USERDIR_13x environment variable
 373         // 3) $HOME/.<name of binary>
 374
 375         // If we had a command line switch, user_lyxdir is already set
 376         bool explicit_userdir = true;
 377         if (user_lyxdir.empty()) {
 378
 379                 // LYX_USERDIR_13x environment variable
 380                 user_lyxdir = GetEnvPath("LYX_USERDIR_13x");
 381
 382                 // default behaviour
 383                 if (user_lyxdir.empty())
 384                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 385                                                         string(".") + PACKAGE);
 386                         explicit_userdir = false;
 387         }
 388
 389         lyxerr[Debug::INIT] << "User LyX directory: '"
 390                             <<  user_lyxdir << '\'' << endl;
 391
 392         // Check that user LyX directory is ok. We don't do that if
 393         // running in batch mode.
 394         if (gui) {
 395                 queryUserLyXDir(explicit_userdir);
 396         } else {
 397                 first_start = false;
 398         }
 399
 400         //
 401         // Shine up lyxrc defaults
 402         //
 403
 404         // Default template path: system_dir/templates
 405         if (lyxrc.template_path.empty()) {
 406                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 407         }
 408
 409         // Default lastfiles file: $HOME/.lyx/lastfiles
 410         if (lyxrc.lastfiles.empty()) {
 411                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 412         }
 413
 414         // Disable gui when either lyxrc or easyparse says so
 415         if (!gui)
 416                 lyxrc.use_gui = false;
 417
 418         //
 419         // Read configuration files
 420         //
 421
 422         readRcFile("lyxrc.defaults");
 423         system_lyxrc = lyxrc;
 424         system_formats = formats;
 425         system_converters = converters;
 426         system_lcolor = lcolor;
 427
 428         // If there is a preferences file we read that instead
 429         // of the old lyxrc file.
 430         if (!readRcFile("preferences"))
 431             readRcFile("lyxrc");
 432
 433         // Read encodings
 434         readEncodingsFile("encodings");
 435         // Read languages
 436         readLanguagesFile("languages");
 437
 438         // Load the layouts
 439         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 440         LyXSetStyle();
 441
 442         // Ensure that we have really read a bind file, so that LyX is
 443         // usable.
 444         lyxrc.readBindFileIfNeeded();
 445
 446         // Read menus
 447         readUIFile(lyxrc.ui_file);
 448
 449         // Bind the X dead keys to the corresponding LyX functions if
 450         // necessary.
 451         if (lyxrc.override_x_deadkeys)
 452                 deadKeyBindings(toplevel_keymap.get());
 453
 454         if (lyxerr.debugging(Debug::LYXRC)) {
 455                 lyxrc.print();
 456         }
 457
 458         // Create temp directory
 459         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 460         system_tempdir = os::getTmpDir();
 461         if (lyxerr.debugging(Debug::INIT)) {
 462                 lyxerr << "LyX tmp dir: `" << system_tempdir << '\'' << endl;
 463         }
 464
 465         // load the lastfiles mini-database
 466         lyxerr[Debug::INIT] << "Reading lastfiles `"
 467                             << lyxrc.lastfiles << "'..." << endl;
 468         lastfiles.reset(new LastFiles(lyxrc.lastfiles,
 469                                       lyxrc.check_lastfiles,
 470                                       lyxrc.num_lastfiles));
 471 }
 472
 473
 474 // These are the default bindings known to LyX
 475 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 476 {
 477         kbmap->bind("Right", LFUN_RIGHT);
 478         kbmap->bind("Left", LFUN_LEFT);
 479         kbmap->bind("Up", LFUN_UP);
 480         kbmap->bind("Down", LFUN_DOWN);
 481
 482         kbmap->bind("Tab", LFUN_TAB);
 483         kbmap->bind("ISO_Left_Tab", LFUN_TAB); // jbl 2001-23-02
 484
 485         kbmap->bind("Home", LFUN_HOME);
 486         kbmap->bind("End", LFUN_END);
 487         kbmap->bind("Prior", LFUN_PRIOR);
 488         kbmap->bind("Next", LFUN_NEXT);
 489
 490         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 491         //kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 492
 493         kbmap->bind("Delete", LFUN_DELETE);
 494         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 495
 496         // sub- and superscript -MV
 497         kbmap->bind("~S-underscore", LFUN_SUBSCRIPT);
 498         kbmap->bind("~S-asciicircum", LFUN_SUPERSCRIPT);
 499
 500         // kbmap->bindings to enable the use of the numeric keypad
 501         // e.g. Num Lock set
 502         //kbmap->bind("KP_0", LFUN_SELFINSERT);
 503         //kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 504         kbmap->bind("KP_Enter", LFUN_BREAKPARAGRAPH);
 505         //kbmap->bind("KP_1", LFUN_SELFINSERT);
 506         //kbmap->bind("KP_2", LFUN_SELFINSERT);
 507         //kbmap->bind("KP_3", LFUN_SELFINSERT);
 508         //kbmap->bind("KP_4", LFUN_SELFINSERT);
 509         //kbmap->bind("KP_5", LFUN_SELFINSERT);
 510         //kbmap->bind("KP_6", LFUN_SELFINSERT);
 511         //kbmap->bind("KP_Add", LFUN_SELFINSERT);
 512         //kbmap->bind("KP_7", LFUN_SELFINSERT);
 513         //kbmap->bind("KP_8", LFUN_SELFINSERT);
 514         //kbmap->bind("KP_9", LFUN_SELFINSERT);
 515         //kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 516         //kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 517         //kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 518         kbmap->bind("KP_Right", LFUN_RIGHT);
 519         kbmap->bind("KP_Left", LFUN_LEFT);
 520         kbmap->bind("KP_Up", LFUN_UP);
 521         kbmap->bind("KP_Down", LFUN_DOWN);
 522         kbmap->bind("KP_Home", LFUN_HOME);
 523         kbmap->bind("KP_End", LFUN_END);
 524         kbmap->bind("KP_Prior", LFUN_PRIOR);
 525         kbmap->bind("KP_Next", LFUN_NEXT);
 526
 527         kbmap->bind("C-Tab", LFUN_TABINSERT);  // ale970515
 528         kbmap->bind("S-Tab", LFUN_SHIFT_TAB);  // jug20000522
 529         kbmap->bind("S-ISO_Left_Tab", LFUN_SHIFT_TAB); // jbl 2001-23-02
 530 }
 531
 532
 533 void LyX::emergencyCleanup()
 534 {
 535         // what to do about tmpfiles is non-obvious. we would
 536         // like to delete any we find, but our lyxdir might
 537         // contain documents etc. which might be helpful on
 538         // a crash
 539
 540         bufferlist.emergencyWriteAll();
 541         if (lyxserver)
 542                 lyxserver->emergencyCleanup();
 543 }
 544
 545
 546 // LyX can optionally take over the handling of deadkeys
 547 void LyX::deadKeyBindings(kb_keymap * kbmap)
 548 {
 549         // bindKeyings for transparent handling of deadkeys
 550         // The keysyms are gotten from XFree86 X11R6
 551         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 552         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 553         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 554         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 555         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 556         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 557         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 558         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 559         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 560         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 561         // nothing with this name
 562         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 563         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 564         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 565         // nothing with this name either...
 566         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 567         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 568         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 569         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 570 }
 571
 572
 573 // This one is not allowed to use anything on the main form, since that
 574 // one does not exist yet. (Asger)
 575 void LyX::queryUserLyXDir(bool explicit_userdir)
 576 {
 577         // Does user directory exist?
 578         FileInfo fileInfo(user_lyxdir);
 579         if (fileInfo.isOK() && fileInfo.isDir()) {
 580                 first_start = false;
 581                 return;
 582         } else {
 583                 first_start = !explicit_userdir;
 584         }
 585
 586         // If the user specified explicitely a directory, ask whether
 587         // to create it (otherwise, always create it)
 588         if (explicit_userdir &&
 589             !Alert::askQuestion(_("You have specified an invalid LyX directory."),
 590                          _("It is needed to keep your own configuration."),
 591                          _("Should I try to set it up for you (recommended)?"))) {
 592                 lyxerr << _("Running without personal LyX directory.") << endl;
 593                 // No, let's use $HOME instead.
 594                 user_lyxdir = GetEnvPath("HOME");
 595                 return;
 596         }
 597
 598         // Tell the user what is going on
 599         lyxerr << _("LyX: Creating directory ") << user_lyxdir
 600                << _(" and running configure...") << endl;
 601
 602         // Create directory structure
 603         if (!createDirectory(user_lyxdir, 0755)) {
 604                 // Failed, let's use $HOME instead.
 605                 user_lyxdir = GetEnvPath("HOME");
 606                 lyxerr << _("Failed. Will use ") << user_lyxdir
 607                        << _(" instead.") << endl;
 608                 return;
 609         }
 610
 611         // Run configure in user lyx directory
 612         Path p(user_lyxdir);
 613         ::system(AddName(system_lyxdir, "configure").c_str());
 614         lyxerr << "LyX: " << _("Done!") << endl;
 615 }
 616
 617
 618 // Read the rc file `name'
 619 bool LyX::readRcFile(string const & name)
 620 {
 621         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 622
 623         string const lyxrc_path = LibFileSearch(string(), name);
 624         if (!lyxrc_path.empty()) {
 625                 lyxerr[Debug::INIT] << "Found " << name
 626                                     << " in " << lyxrc_path << endl;
 627                 if (lyxrc.read(lyxrc_path) < 0) {
 628                         Alert::alert(_("LyX Warning!"),
 629                                    _("Error while reading ") + lyxrc_path + ".",
 630                                    _("Using built-in defaults."));
 631                         return false;
 632                 }
 633                 return true;
 634         } else {
 635                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 636         }
 637
 638         return false;
 639 }
 640
 641
 642 // Read the ui file `name'
 643 void LyX::readUIFile(string const & name)
 644 {
 645         enum Uitags {
 646                 ui_menuset = 1,
 647                 ui_toolbar,
 648                 ui_last
 649         };
 650
 651         struct keyword_item uitags[ui_last-1] = {
 652                 { "menuset", ui_menuset },
 653                 { "toolbar", ui_toolbar }
 654         };
 655
 656         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 657
 658         string const ui_path = LibFileSearch("ui", name, "ui");
 659
 660         if (ui_path.empty()) {
 661                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 662                 menubackend.defaults();
 663                 return;
 664         }
 665
 666         lyxerr[Debug::INIT] << "Found " << name
 667                             << " in " << ui_path << endl;
 668         LyXLex lex(uitags, ui_last - 1);
 669         lex.setFile(ui_path);
 670         if (!lex.isOK()) {
 671                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 672                        << endl;
 673         }
 674
 675         if (lyxerr.debugging(Debug::PARSER))
 676                 lex.printTable(lyxerr);
 677
 678         while (lex.isOK()) {
 679                 switch (lex.lex()) {
 680                 case ui_menuset:
 681                         menubackend.read(lex);
 682                         break;
 683
 684                 case ui_toolbar:
 685                         toolbardefaults.read(lex);
 686                         break;
 687
 688                 default:
 689                         if (!rtrim(lex.getString()).empty())
 690                                 lex.printError("LyX::ReadUIFile: "
 691                                                "Unknown menu tag: `$$Token'");
 692                         break;
 693                 }
 694         }
 695 }
 696
 697
 698 // Read the languages file `name'
 699 void LyX::readLanguagesFile(string const & name)
 700 {
 701         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 702
 703         string const lang_path = LibFileSearch(string(), name);
 704         if (lang_path.empty()) {
 705                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 706                 languages.setDefaults();
 707                 return;
 708         }
 709         languages.read(lang_path);
 710 }
 711
 712
 713 // Read the encodings file `name'
 714 void LyX::readEncodingsFile(string const & name)
 715 {
 716         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 717
 718         string const enc_path = LibFileSearch(string(), name);
 719         if (enc_path.empty()) {
 720                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 721                 return;
 722         }
 723         encodings.read(enc_path);
 724 }
 725
 726
 727 namespace {
 728
 729 // Set debugging level and report result to user
 730 void setDebuggingLevel(string const & dbgLevel)
 731 {
 732         lyxerr << _("Setting debug level to ") <<  dbgLevel << endl;
 733         lyxerr.level(Debug::value(dbgLevel));
 734         Debug::showLevel(lyxerr, lyxerr.level());
 735 }
 736
 737
 738 // Give command line help
 739 void commandLineHelp()
 740 {
 741         lyxerr <<
 742                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 743                   "Command line switches (case sensitive):\n"
 744                   "\t-help              summarize LyX usage\n"
 745                   "\t-userdir dir       try to set user directory to dir\n"
 746                   "\t-sysdir dir        try to set system directory to dir\n"
 747                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 748                   "\t-dbg feature[,feature]...\n"
 749                   "                  select the features to debug.\n"
 750                   "                  Type `lyx -dbg' to see the list of features\n"
 751                   "\t-x [--execute] command\n"
 752                   "                  where command is a lyx command.\n"
 753                   "\t-e [--export] fmt\n"
 754                   "                  where fmt is the export format of choice.\n"
 755                   "\t-i [--import] fmt file.xxx\n"
 756                   "                  where fmt is the import format of choice\n"
 757                   "                  and file.xxx is the file to be imported.\n"
 758                   "\t-version        summarize version and build info\n"
 759                   "Check the LyX man page for more details.") << endl;
 760 }
 761
 762 // Give command line version information
 763 void commandLineVersionInfo()
 764 {
 765         lyxerr << "LyX " << lyx_version
 766                << " of " << lyx_release_date << endl;
 767         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 768
 769         lyxerr << lyx_version_info << endl;
 770 }
 771
 772
 773 } // namespace anon
 774
 775
 776 bool LyX::easyParse(int & argc, char * argv[])
 777 {
 778         bool gui = true;
 779         int removeargs = 0; // used when options are read
 780         for (int i = 1; i < argc; ++i) {
 781                 string arg = argv[i];
 782
 783                 // Check for -dbg int
 784                 if (arg == "-dbg") {
 785                         if (i + 1 < argc) {
 786                                 setDebuggingLevel(argv[i + 1]);
 787                                 removeargs = 2;
 788                         } else {
 789                                 lyxerr << _("List of supported debug flags:")
 790                                        << endl;
 791                                 Debug::showTags(lyxerr);
 792                                 exit(1);
 793                         }
 794                 }
 795                 // Check for "-sysdir"
 796                 else if (arg == "-sysdir") {
 797                         if (i + 1 < argc) {
 798                                 system_lyxdir = argv[i + 1];
 799                                 removeargs = 2;
 800                         } else {
 801                                 lyxerr << _("Missing directory for -sysdir switch!")
 802                                        << endl;
 803                                 exit(1);
 804                         }
 805                 }
 806                 // Check for "-userdir"
 807                 else if (arg == "-userdir") {
 808                         if (i + 1 < argc) {
 809                                 user_lyxdir = argv[i + 1];
 810                                 removeargs = 2;
 811                         } else {
 812                                 lyxerr << _("Missing directory for -userdir switch!")
 813                                        << endl;
 814                                 exit(1);
 815                         }
 816                 }
 817                 // Check for --help or -help
 818                 else if (arg == "--help" || arg == "-help") {
 819                         commandLineHelp();
 820                         exit(0);
 821                 }
 822                 // Check for --version or -version
 823                 else if (arg == "--version" || arg == "-version") {
 824                         commandLineVersionInfo();
 825                         exit(0);
 826                 }
 827                 // FIXME: why is this commented out ?
 828                 // Check for "-nw": No XWindows as for emacs this should
 829                 // give a LyX that could be used in a terminal window.
 830                 //else if (arg == "-nw") {
 831                 //      gui = false;
 832                 //}
 833
 834                 // Check for "-x": Execute commands
 835                 else if (arg == "-x" || arg == "--execute") {
 836                         if (i + 1 < argc) {
 837                                 batch_command = string(argv[i + 1]);
 838                                 removeargs = 2;
 839                         }
 840                         else
 841                                 lyxerr << _("Missing command string after  -x switch!") << endl;
 842
 843                         // Argh. Setting gui to false segfaults..
 844                         // FIXME: when ? how ?
 845                         // gui = false;
 846                 }
 847
 848                 else if (arg == "-e" || arg == "--export") {
 849                         if (i + 1 < argc) {
 850                                 string type(argv[i+1]);
 851                                 removeargs = 2;
 852                                 batch_command = "buffer-export " + type;
 853                                 gui = false;
 854                         } else {
 855                                 lyxerr << _("Missing file type [eg latex, "
 856                                             "ps...] after ")
 857                                        << arg << _(" switch!") << endl;
 858                                 exit(1);
 859                         }
 860                 }
 861                 else if (arg == "-i" || arg == "--import") {
 862                         if (i + 1 < argc) {
 863                                 if (!argv[i+2]) {
 864                                         lyxerr << _("Missing filename for --import") << endl;
 865                                         exit(1);
 866                                 }
 867
 868                                 string const file(argv[i+2]);
 869                                 string const type(argv[i+1]);
 870                                 removeargs = 3;
 871
 872                                 batch_command = "buffer-import " + type + " " + file;
 873                                 lyxerr << "batch_command: "
 874                                        << batch_command << endl;
 875
 876                         } else {
 877                                 lyxerr << _("Missing type [eg latex, "
 878                                             "ps...] after ")
 879                                        << arg << _(" switch!") << endl;
 880                                 exit(1);
 881                         }
 882                 }
 883
 884                 if (removeargs > 0) {
 885                         // Now, remove used arguments by shifting
 886                         // the following ones removeargs places down.
 887                         argc -= removeargs;
 888                         for (int j = i; j < argc; ++j)
 889                                 argv[j] = argv[j + removeargs];
 890                         --i; // After shift, check this number again.
 891                         removeargs = 0;
 892                 }
 893
 894         }
 895
 896         return gui;
 897 }