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 "lyxtextclasslist.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
  39 #include "frontends/Alert.h"
  40 #include "frontends/lyx_gui.h"
  41
  42 #include <cstdlib>
  43 #include <csignal>
  44
  45 using std::vector;
  46 using std::endl;
  47
  48 #ifndef CXX_GLOBAL_CSTD
  49 using std::exit;
  50 using std::signal;
  51 using std::system;
  52 #endif
  53
  54 extern void LoadLyXFile(string const &);
  55 extern void QuitLyX();
  56
  57 extern LyXServer * lyxserver;
  58
  59 string system_lyxdir;
  60 string build_lyxdir;
  61 string system_tempdir;
  62 string user_lyxdir;
  63
  64 DebugStream lyxerr;
  65
  66 boost::scoped_ptr<LastFiles> lastfiles;
  67
  68 // This is the global bufferlist object
  69 BufferList bufferlist;
  70
  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 const want_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         if (want_gui) {
  89                 lyx_gui::parse_init(argc, argv);
  90         }
  91
  92         // check for any spurious extra arguments
  93         // other than documents
  94         for (int argi = 1; argi < argc ; ++argi) {
  95                 if (argv[argi][0] == '-') {
  96                         lyxerr << _("Wrong command line option `")
  97                                << argv[argi]
  98                                << _("'. Exiting.") << endl;
  99                         exit(1);
 100                 }
 101         }
 102
 103         // Initialization of LyX (reads lyxrc and more)
 104         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 105         init(want_gui);
 106         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 107
 108         if (want_gui) {
 109                 lyx_gui::parse_lyxrc();
 110         }
 111
 112         vector<string> files;
 113
 114         for (int argi = argc - 1; argi >= 1; --argi) {
 115                 files.push_back(argv[argi]);
 116         }
 117
 118         if (first_start) {
 119                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 120         }
 121
 122 #if 0 // FIXME: GUII
 123         // Execute batch commands if available
 124         if (!batch_command.empty()) {
 125                 lyxerr[Debug::INIT] << "About to handle -x '"
 126                        << batch_command << "'" << endl;
 127
 128                 // no buffer loaded, create one
 129                 if (!last_loaded)
 130                         last_loaded = bufferlist.newFile("tmpfile", string());
 131
 132                 bool success = false;
 133
 134                 // try to dispatch to last loaded buffer first
 135                 bool const dispatched = last_loaded->dispatch(batch_command, &success);
 136
 137                 // if this was successful, finish
 138                 if (dispatched) {
 139                         QuitLyX();
 140                         exit(!success);
 141                 }
 142         }
 143 #endif
 144
 145         lyx_gui::start(batch_command, files);
 146 }
 147
 148
 149 extern "C" {
 150
 151 static
 152 void error_handler(int err_sig)
 153 {
 154         switch (err_sig) {
 155         case SIGHUP:
 156                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 157                 break;
 158         case SIGINT:
 159                 // no comments
 160                 break;
 161         case SIGFPE:
 162                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 163                 break;
 164         case SIGSEGV:
 165                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 166                 lyxerr <<
 167                         "Sorry, you have found a bug in LyX. "
 168                         "Please read the bug-reporting instructions "
 169                         "in Help->Introduction and send us a bug report, "
 170                         "if necessary. Thanks !" << endl;
 171                 break;
 172         case SIGTERM:
 173                 // no comments
 174                 break;
 175         }
 176
 177         // Deinstall the signal handlers
 178         signal(SIGHUP, SIG_DFL);
 179         signal(SIGINT, SIG_DFL);
 180         signal(SIGFPE, SIG_DFL);
 181         signal(SIGSEGV, SIG_DFL);
 182         signal(SIGTERM, SIG_DFL);
 183
 184         LyX::emergencyCleanup();
 185
 186         lyxerr << "Bye." << endl;
 187         if (err_sig!= SIGHUP &&
 188            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 189                 lyx::abort();
 190         exit(0);
 191 }
 192
 193 }
 194
 195
 196 void LyX::init(bool gui)
 197 {
 198         // Install the signal handlers
 199         signal(SIGHUP, error_handler);
 200         signal(SIGFPE, error_handler);
 201         signal(SIGSEGV, error_handler);
 202         signal(SIGINT, error_handler);
 203         signal(SIGTERM, error_handler);
 204
 205         //
 206         // Determine path of binary
 207         //
 208
 209         string binpath = os::binpath();
 210         string binname = os::binname();
 211         string fullbinname = MakeAbsPath(binname, binpath);
 212
 213         if (binpath.empty()) {
 214                 lyxerr << _("Warning: could not determine path of binary.")
 215                        << "\n"
 216                        << _("If you have problems, try starting LyX with an absolute path.")
 217                        << endl;
 218         }
 219         lyxerr[Debug::INIT] << "Name of binary: " << binname << endl;
 220         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 221
 222         //
 223         // Determine system directory.
 224         //
 225
 226         // Directories are searched in this order:
 227         // 1) -sysdir command line parameter
 228         // 2) LYX_DIR_13x environment variable
 229         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 230         // 4) <path of binary>/../share/<name of binary>/
 231         // 4a) repeat 4 after following the Symlink if <path of
 232         //     binary> is a symbolic link.
 233         // 5) hardcoded lyx_dir
 234         // The directory is checked for the presence of the file
 235         // "chkconfig.ltx", and if that is present, the directory
 236         // is accepted as the system directory.
 237         // If no chkconfig.ltx file is found, a warning is given,
 238         // and the hardcoded lyx_dir is used.
 239
 240         // If we had a command line switch, system_lyxdir is already set
 241         string searchpath;
 242         if (!system_lyxdir.empty())
 243                 searchpath= MakeAbsPath(system_lyxdir) + ';';
 244
 245         // LYX_DIR_13x environment variable
 246         string const lyxdir = GetEnvPath("LYX_DIR_13x");
 247
 248         if (!lyxdir.empty()) {
 249                 lyxerr[Debug::INIT] << "LYX_DIR_13x: " << lyxdir << endl;
 250                 searchpath += lyxdir + ';';
 251         }
 252
 253         string fullbinpath = binpath;
 254         FileInfo file(fullbinname, true);
 255         if (file.isLink()) {
 256                 lyxerr[Debug::INIT] << "binary is a link" << endl;
 257                 string link;
 258                 if (LyXReadLink(fullbinname, link)) {
 259                         // Path of binary/../share/name of binary/
 260                         searchpath += NormalizePath(AddPath(binpath,
 261                                                             "../share/")
 262                                                     + OnlyFilename(binname));
 263                         searchpath += ';';
 264                         fullbinpath = link;
 265                         binpath = MakeAbsPath(OnlyPath(fullbinpath));
 266                 }
 267         }
 268
 269         bool followlink;
 270         do {
 271                 // Path of binary/../share/name of binary/
 272                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 273                       OnlyFilename(binname)) + ';';
 274
 275                 // Follow Symlinks
 276                 FileInfo file(fullbinpath, true);
 277                 followlink = file.isLink();
 278                 if (followlink) {
 279                         lyxerr << " directory " << fullbinpath
 280                                << " is a link" << endl;
 281                         string link;
 282                         if (LyXReadLink(fullbinpath, link)) {
 283                                 fullbinpath = link;
 284                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 285                         }
 286                         else {
 287                                 followlink = false;
 288                         }
 289                 }
 290         } while (followlink);
 291
 292         // <path of binary>/TOP_SRCDIR/lib
 293         build_lyxdir = MakeAbsPath("../lib", binpath);
 294         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 295                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 296                                           binpath) + ';';
 297                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 298                         "place... yes" << endl;
 299         } else {
 300                 lyxerr[Debug::INIT]
 301                         << "Checking whether LyX is run in place... no"
 302                         << endl;
 303                 build_lyxdir.erase();
 304         }
 305
 306         // Hardcoded dir
 307         searchpath += LYX_DIR;
 308
 309         // If debugging, show complete search path
 310         lyxerr[Debug::INIT] << "System directory search path: "
 311                             << searchpath << endl;
 312
 313         string const filename = "chkconfig.ltx";
 314         string const temp = FileOpenSearch(searchpath, filename, string());
 315         system_lyxdir = OnlyPath(temp);
 316
 317         // Reduce "path/../path" stuff out of system directory
 318         system_lyxdir = NormalizePath(system_lyxdir);
 319
 320         bool path_shown = false;
 321
 322         // Warn if environment variable is set, but unusable
 323         if (!lyxdir.empty()) {
 324                 if (system_lyxdir != NormalizePath(lyxdir)) {
 325                         lyxerr <<_("LYX_DIR_13x environment variable no good.")
 326                                << '\n'
 327                                << _("System directory set to: ")
 328                                << system_lyxdir << endl;
 329                         path_shown = true;
 330                 }
 331         }
 332
 333         // Warn the user if we couldn't find "chkconfig.ltx"
 334         if (system_lyxdir == "./") {
 335                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 336                        <<_("Try the '-sysdir' command line parameter or ")
 337                        <<_("set the environment variable LYX_DIR_13x to the "
 338                            "LyX system directory ")
 339                        << _("containing the file `chkconfig.ltx'.") << endl;
 340                 if (!path_shown) {
 341                         FileInfo fi(LYX_DIR);
 342                         if (!fi.exist()) {
 343                                 lyxerr << "Couldn't even find the default LYX_DIR." << endl
 344                                         << "Giving up." << endl;
 345                                 exit(1);
 346                         }
 347                         lyxerr << _("Using built-in default ")
 348                                << LYX_DIR << _(" but expect problems.")
 349                                << endl;
 350                 } else {
 351                         lyxerr << _("Expect problems.") << endl;
 352                 }
 353                 system_lyxdir = LYX_DIR;
 354                 path_shown = true;
 355         }
 356         // Report the system directory if debugging is on
 357         if (!path_shown)
 358                 lyxerr[Debug::INIT] << "System directory: '"
 359                                     << system_lyxdir << '\'' << endl;
 360
 361         //
 362         // Determine user lyx-dir
 363         //
 364
 365         // Directories are searched in this order:
 366         // 1) -userdir command line parameter
 367         // 2) LYX_USERDIR_13x environment variable
 368         // 3) $HOME/.<name of binary>
 369
 370         // If we had a command line switch, user_lyxdir is already set
 371         bool explicit_userdir = true;
 372         if (user_lyxdir.empty()) {
 373
 374                 // LYX_USERDIR_13x environment variable
 375                 user_lyxdir = GetEnvPath("LYX_USERDIR_13x");
 376
 377                 // default behaviour
 378                 if (user_lyxdir.empty())
 379                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 380                                                         string(".") + PACKAGE);
 381                         explicit_userdir = false;
 382         }
 383
 384         lyxerr[Debug::INIT] << "User LyX directory: '"
 385                             <<  user_lyxdir << '\'' << endl;
 386
 387         // Check that user LyX directory is ok. We don't do that if
 388         // running in batch mode.
 389         if (gui) {
 390                 queryUserLyXDir(explicit_userdir);
 391         } else {
 392                 first_start = false;
 393         }
 394
 395         //
 396         // Shine up lyxrc defaults
 397         //
 398
 399         // Default template path: system_dir/templates
 400         if (lyxrc.template_path.empty()) {
 401                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 402         }
 403
 404         // Default lastfiles file: $HOME/.lyx/lastfiles
 405         if (lyxrc.lastfiles.empty()) {
 406                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 407         }
 408
 409         // Disable gui when either lyxrc or easyparse says so
 410         if (!gui)
 411                 lyxrc.use_gui = false;
 412
 413         //
 414         // Read configuration files
 415         //
 416
 417         readRcFile("lyxrc.defaults");
 418         system_lyxrc = lyxrc;
 419         system_formats = formats;
 420         system_converters = converters;
 421         system_lcolor = lcolor;
 422
 423         // If there is a preferences file we read that instead
 424         // of the old lyxrc file.
 425         if (!readRcFile("preferences"))
 426             readRcFile("lyxrc");
 427
 428         // Read encodings
 429         readEncodingsFile("encodings");
 430         // Read languages
 431         readLanguagesFile("languages");
 432
 433         // Load the layouts
 434         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 435         LyXSetStyle();
 436
 437         // Ensure that we have really read a bind file, so that LyX is
 438         // usable.
 439         lyxrc.readBindFileIfNeeded();
 440
 441         // Read menus
 442         readUIFile(lyxrc.ui_file);
 443
 444         // Bind the X dead keys to the corresponding LyX functions if
 445         // necessary.
 446         if (lyxrc.override_x_deadkeys)
 447                 deadKeyBindings(toplevel_keymap.get());
 448
 449         if (lyxerr.debugging(Debug::LYXRC)) {
 450                 lyxrc.print();
 451         }
 452
 453         // Create temp directory
 454         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 455         system_tempdir = os::getTmpDir();
 456         if (lyxerr.debugging(Debug::INIT)) {
 457                 lyxerr << "LyX tmp dir: `" << system_tempdir << '\'' << endl;
 458         }
 459
 460         // load the lastfiles mini-database
 461         lyxerr[Debug::INIT] << "Reading lastfiles `"
 462                             << lyxrc.lastfiles << "'..." << endl;
 463         lastfiles.reset(new LastFiles(lyxrc.lastfiles,
 464                                       lyxrc.check_lastfiles,
 465                                       lyxrc.num_lastfiles));
 466 }
 467
 468
 469 // These are the default bindings known to LyX
 470 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 471 {
 472         kbmap->bind("Right", LFUN_RIGHT);
 473         kbmap->bind("Left", LFUN_LEFT);
 474         kbmap->bind("Up", LFUN_UP);
 475         kbmap->bind("Down", LFUN_DOWN);
 476
 477         kbmap->bind("Tab", LFUN_TAB);
 478         kbmap->bind("ISO_Left_Tab", LFUN_TAB); // jbl 2001-23-02
 479
 480         kbmap->bind("Home", LFUN_HOME);
 481         kbmap->bind("End", LFUN_END);
 482         kbmap->bind("Prior", LFUN_PRIOR);
 483         kbmap->bind("Next", LFUN_NEXT);
 484
 485         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 486         //kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 487
 488         kbmap->bind("Delete", LFUN_DELETE);
 489         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 490
 491         // sub- and superscript -MV
 492         kbmap->bind("~S-underscore", LFUN_SUBSCRIPT);
 493         kbmap->bind("~S-asciicircum", LFUN_SUPERSCRIPT);
 494
 495         // kbmap->bindings to enable the use of the numeric keypad
 496         // e.g. Num Lock set
 497         //kbmap->bind("KP_0", LFUN_SELFINSERT);
 498         //kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 499         kbmap->bind("KP_Enter", LFUN_BREAKPARAGRAPH);
 500         //kbmap->bind("KP_1", LFUN_SELFINSERT);
 501         //kbmap->bind("KP_2", LFUN_SELFINSERT);
 502         //kbmap->bind("KP_3", LFUN_SELFINSERT);
 503         //kbmap->bind("KP_4", LFUN_SELFINSERT);
 504         //kbmap->bind("KP_5", LFUN_SELFINSERT);
 505         //kbmap->bind("KP_6", LFUN_SELFINSERT);
 506         //kbmap->bind("KP_Add", LFUN_SELFINSERT);
 507         //kbmap->bind("KP_7", LFUN_SELFINSERT);
 508         //kbmap->bind("KP_8", LFUN_SELFINSERT);
 509         //kbmap->bind("KP_9", LFUN_SELFINSERT);
 510         //kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 511         //kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 512         //kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 513         kbmap->bind("KP_Right", LFUN_RIGHT);
 514         kbmap->bind("KP_Left", LFUN_LEFT);
 515         kbmap->bind("KP_Up", LFUN_UP);
 516         kbmap->bind("KP_Down", LFUN_DOWN);
 517         kbmap->bind("KP_Home", LFUN_HOME);
 518         kbmap->bind("KP_End", LFUN_END);
 519         kbmap->bind("KP_Prior", LFUN_PRIOR);
 520         kbmap->bind("KP_Next", LFUN_NEXT);
 521
 522         kbmap->bind("C-Tab", LFUN_TABINSERT);  // ale970515
 523         kbmap->bind("S-Tab", LFUN_SHIFT_TAB);  // jug20000522
 524         kbmap->bind("S-ISO_Left_Tab", LFUN_SHIFT_TAB); // jbl 2001-23-02
 525 }
 526
 527
 528 void LyX::emergencyCleanup()
 529 {
 530         // what to do about tmpfiles is non-obvious. we would
 531         // like to delete any we find, but our lyxdir might
 532         // contain documents etc. which might be helpful on
 533         // a crash
 534
 535         bufferlist.emergencyWriteAll();
 536         if (lyxserver)
 537                 lyxserver->emergencyCleanup();
 538 }
 539
 540
 541 // LyX can optionally take over the handling of deadkeys
 542 void LyX::deadKeyBindings(kb_keymap * kbmap)
 543 {
 544         // bindKeyings for transparent handling of deadkeys
 545         // The keysyms are gotten from XFree86 X11R6
 546         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 547         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 548         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 549         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 550         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 551         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 552         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 553         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 554         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 555         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 556         // nothing with this name
 557         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 558         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 559         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 560         // nothing with this name either...
 561         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 562         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 563         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 564         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 565 }
 566
 567
 568 // This one is not allowed to use anything on the main form, since that
 569 // one does not exist yet. (Asger)
 570 void LyX::queryUserLyXDir(bool explicit_userdir)
 571 {
 572         // Does user directory exist?
 573         FileInfo fileInfo(user_lyxdir);
 574         if (fileInfo.isOK() && fileInfo.isDir()) {
 575                 first_start = false;
 576                 return;
 577         } else {
 578                 first_start = !explicit_userdir;
 579         }
 580
 581         // If the user specified explicitely a directory, ask whether
 582         // to create it (otherwise, always create it)
 583         if (explicit_userdir &&
 584             !Alert::askQuestion(_("You have specified an invalid LyX directory."),
 585                          _("It is needed to keep your own configuration."),
 586                          _("Should I try to set it up for you (recommended)?"))) {
 587                 lyxerr << _("Running without personal LyX directory.") << endl;
 588                 // No, let's use $HOME instead.
 589                 user_lyxdir = GetEnvPath("HOME");
 590                 return;
 591         }
 592
 593         // Tell the user what is going on
 594         lyxerr << _("LyX: Creating directory ") << user_lyxdir
 595                << _(" and running configure...") << endl;
 596
 597         // Create directory structure
 598         if (!createDirectory(user_lyxdir, 0755)) {
 599                 // Failed, let's use $HOME instead.
 600                 user_lyxdir = GetEnvPath("HOME");
 601                 lyxerr << _("Failed. Will use ") << user_lyxdir
 602                        << _(" instead.") << endl;
 603                 return;
 604         }
 605
 606         // Run configure in user lyx directory
 607         Path p(user_lyxdir);
 608         ::system(AddName(system_lyxdir, "configure").c_str());
 609         lyxerr << "LyX: " << _("Done!") << endl;
 610 }
 611
 612
 613 // Read the rc file `name'
 614 bool LyX::readRcFile(string const & name)
 615 {
 616         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 617
 618         string const lyxrc_path = LibFileSearch(string(), name);
 619         if (!lyxrc_path.empty()) {
 620                 lyxerr[Debug::INIT] << "Found " << name
 621                                     << " in " << lyxrc_path << endl;
 622                 if (lyxrc.read(lyxrc_path) < 0) {
 623                         Alert::alert(_("LyX Warning!"),
 624                                    _("Error while reading ") + lyxrc_path + ".",
 625                                    _("Using built-in defaults."));
 626                         return false;
 627                 }
 628                 return true;
 629         } else {
 630                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 631         }
 632
 633         return false;
 634 }
 635
 636
 637 // Read the ui file `name'
 638 void LyX::readUIFile(string const & name)
 639 {
 640         enum Uitags {
 641                 ui_menuset = 1,
 642                 ui_toolbar,
 643                 ui_last
 644         };
 645
 646         struct keyword_item uitags[ui_last-1] = {
 647                 { "menuset", ui_menuset },
 648                 { "toolbar", ui_toolbar }
 649         };
 650
 651         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 652
 653         string const ui_path = LibFileSearch("ui", name, "ui");
 654
 655         if (ui_path.empty()) {
 656                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 657                 menubackend.defaults();
 658                 return;
 659         }
 660
 661         lyxerr[Debug::INIT] << "Found " << name
 662                             << " in " << ui_path << endl;
 663         LyXLex lex(uitags, ui_last - 1);
 664         lex.setFile(ui_path);
 665         if (!lex.isOK()) {
 666                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 667                        << endl;
 668         }
 669
 670         if (lyxerr.debugging(Debug::PARSER))
 671                 lex.printTable(lyxerr);
 672
 673         while (lex.isOK()) {
 674                 switch (lex.lex()) {
 675                 case ui_menuset:
 676                         menubackend.read(lex);
 677                         break;
 678
 679                 case ui_toolbar:
 680                         toolbardefaults.read(lex);
 681                         break;
 682
 683                 default:
 684                         if (!strip(lex.getString()).empty())
 685                                 lex.printError("LyX::ReadUIFile: "
 686                                                "Unknown menu tag: `$$Token'");
 687                         break;
 688                 }
 689         }
 690 }
 691
 692
 693 // Read the languages file `name'
 694 void LyX::readLanguagesFile(string const & name)
 695 {
 696         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 697
 698         string const lang_path = LibFileSearch(string(), name);
 699         if (lang_path.empty()) {
 700                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 701                 languages.setDefaults();
 702                 return;
 703         }
 704         languages.read(lang_path);
 705 }
 706
 707
 708 // Read the encodings file `name'
 709 void LyX::readEncodingsFile(string const & name)
 710 {
 711         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 712
 713         string const enc_path = LibFileSearch(string(), name);
 714         if (enc_path.empty()) {
 715                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 716                 return;
 717         }
 718         encodings.read(enc_path);
 719 }
 720
 721
 722 namespace {
 723
 724 // Set debugging level and report result to user
 725 void setDebuggingLevel(string const & dbgLevel)
 726 {
 727         lyxerr << _("Setting debug level to ") <<  dbgLevel << endl;
 728         lyxerr.level(Debug::value(dbgLevel));
 729         Debug::showLevel(lyxerr, lyxerr.level());
 730 }
 731
 732
 733 // Give command line help
 734 void commandLineHelp()
 735 {
 736         lyxerr <<
 737                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 738                   "Command line switches (case sensitive):\n"
 739                   "\t-help              summarize LyX usage\n"
 740                   "\t-userdir dir       try to set user directory to dir\n"
 741                   "\t-sysdir dir        try to set system directory to dir\n"
 742                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 743                   "\t-dbg feature[,feature]...\n"
 744                   "                  select the features to debug.\n"
 745                   "                  Type `lyx -dbg' to see the list of features\n"
 746                   "\t-x [--execute] command\n"
 747                   "                  where command is a lyx command.\n"
 748                   "\t-e [--export] fmt\n"
 749                   "                  where fmt is the export format of choice.\n"
 750                   "\t-i [--import] fmt file.xxx\n"
 751                   "                  where fmt is the import format of choice\n"
 752                   "                  and file.xxx is the file to be imported.\n"
 753                   "\t-version        summarize version and build info\n"
 754                   "Check the LyX man page for more details.") << endl;
 755 }
 756
 757 // Give command line version information
 758 void commandLineVersionInfo()
 759 {
 760         lyxerr << "LyX " << lyx_version
 761                << " of " << lyx_release_date << endl;
 762         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 763
 764         lyxerr << lyx_version_info << endl;
 765 }
 766
 767
 768 } // namespace anon
 769
 770
 771 bool LyX::easyParse(int & argc, char * argv[])
 772 {
 773         bool gui = true;
 774         int removeargs = 0; // used when options are read
 775         for (int i = 1; i < argc; ++i) {
 776                 string arg = argv[i];
 777
 778                 // Check for -dbg int
 779                 if (arg == "-dbg") {
 780                         if (i + 1 < argc) {
 781                                 setDebuggingLevel(argv[i + 1]);
 782                                 removeargs = 2;
 783                         } else {
 784                                 lyxerr << _("List of supported debug flags:")
 785                                        << endl;
 786                                 Debug::showTags(lyxerr);
 787                                 exit(1);
 788                         }
 789                 }
 790                 // Check for "-sysdir"
 791                 else if (arg == "-sysdir") {
 792                         if (i + 1 < argc) {
 793                                 system_lyxdir = argv[i + 1];
 794                                 removeargs = 2;
 795                         } else {
 796                                 lyxerr << _("Missing directory for -sysdir switch!")
 797                                        << endl;
 798                                 exit(1);
 799                         }
 800                 }
 801                 // Check for "-userdir"
 802                 else if (arg == "-userdir") {
 803                         if (i + 1 < argc) {
 804                                 user_lyxdir = argv[i + 1];
 805                                 removeargs = 2;
 806                         } else {
 807                                 lyxerr << _("Missing directory for -userdir switch!")
 808                                        << endl;
 809                                 exit(1);
 810                         }
 811                 }
 812                 // Check for --help or -help
 813                 else if (arg == "--help" || arg == "-help") {
 814                         commandLineHelp();
 815                         exit(0);
 816                 }
 817                 // Check for --version or -version
 818                 else if (arg == "--version" || arg == "-version") {
 819                         commandLineVersionInfo();
 820                         exit(0);
 821                 }
 822                 // FIXME: why is this commented out ?
 823                 // Check for "-nw": No XWindows as for emacs this should
 824                 // give a LyX that could be used in a terminal window.
 825                 //else if (arg == "-nw") {
 826                 //      gui = false;
 827                 //}
 828
 829                 // Check for "-x": Execute commands
 830                 else if (arg == "-x" || arg == "--execute") {
 831                         if (i + 1 < argc) {
 832                                 batch_command = string(argv[i + 1]);
 833                                 removeargs = 2;
 834                         }
 835                         else
 836                                 lyxerr << _("Missing command string after  -x switch!") << endl;
 837
 838                         // Argh. Setting gui to false segfaults..
 839                         // FIXME: when ? how ?
 840                         // gui = false;
 841                 }
 842
 843                 else if (arg == "-e" || arg == "--export") {
 844                         if (i + 1 < argc) {
 845                                 string type(argv[i+1]);
 846                                 removeargs = 2;
 847                                 batch_command = "buffer-export " + type;
 848                                 gui = false;
 849                         } else {
 850                                 lyxerr << _("Missing file type [eg latex, "
 851                                             "ps...] after ")
 852                                        << arg << _(" switch!") << endl;
 853                                 exit(1);
 854                         }
 855                 }
 856                 else if (arg == "-i" || arg == "--import") {
 857                         if (i + 1 < argc) {
 858                                 if (!argv[i+2]) {
 859                                         lyxerr << _("Missing filename for --import") << endl;
 860                                         exit(1);
 861                                 }
 862
 863                                 string const file(argv[i+2]);
 864                                 string const type(argv[i+1]);
 865                                 removeargs = 3;
 866
 867                                 batch_command = "buffer-import " + type + " " + file;
 868                                 lyxerr << "batch_command: "
 869                                        << batch_command << endl;
 870
 871                         } else {
 872                                 lyxerr << _("Missing type [eg latex, "
 873                                             "ps...] after ")
 874                                        << arg << _(" switch!") << endl;
 875                                 exit(1);
 876                         }
 877                 }
 878
 879                 if (removeargs > 0) {
 880                         // Now, remove used arguments by shifting
 881                         // the following ones removeargs places down.
 882                         argc -= removeargs;
 883                         for (int j = i; j < argc; ++j)
 884                                 argv[j] = argv[j + removeargs];
 885                         --i; // After shift, check this number again.
 886                         removeargs = 0;
 887                 }
 888
 889         }
 890
 891         return gui;
 892 }