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 "graphics/GraphicsTypes.h"
  28
  29 #include "bufferlist.h"
  30 #include "buffer.h"
  31 #include "lyxserver.h"
  32 #include "kbmap.h"
  33 #include "lyxfunc.h"
  34 #include "ToolbarDefaults.h"
  35 #include "MenuBackend.h"
  36 #include "language.h"
  37 #include "lastfiles.h"
  38 #include "encoding.h"
  39 #include "converter.h"
  40 #include "lyxtextclasslist.h"
  41
  42 #include "frontends/Alert.h"
  43 #include "frontends/lyx_gui.h"
  44
  45 #include <boost/function.hpp>
  46
  47 #include <cstdlib>
  48 #include <csignal>
  49
  50 using std::vector;
  51 using std::endl;
  52
  53 #ifndef CXX_GLOBAL_CSTD
  54 using std::exit;
  55 using std::signal;
  56 using std::system;
  57 #endif
  58
  59 extern void LoadLyXFile(string const &);
  60 extern void QuitLyX();
  61
  62 extern LyXServer * lyxserver;
  63
  64 string system_lyxdir;
  65 string build_lyxdir;
  66 string system_tempdir;
  67 string user_lyxdir;
  68
  69 DebugStream lyxerr;
  70
  71 boost::scoped_ptr<LastFiles> lastfiles;
  72
  73 // This is the global bufferlist object
  74 BufferList bufferlist;
  75
  76 // convenient to have it here.
  77 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  78
  79
  80 LyX::LyX(int & argc, char * argv[])
  81 {
  82         // Here we need to parse the command line. At least
  83         // we need to parse for "-dbg" and "-help"
  84         bool const want_gui = easyParse(argc, argv);
  85
  86         // Global bindings (this must be done as early as possible.) (Lgb)
  87         toplevel_keymap.reset(new kb_keymap);
  88         defaultKeyBindings(toplevel_keymap.get());
  89
  90         // set the DisplayTranslator only once; should that be done here??
  91         // if this should not be in this file, please also remove
  92         // #include "graphics/GraphicsTypes.h" at the top -- Rob Lahaye.
  93         grfx::setDisplayTranslator();
  94
  95         if (want_gui) {
  96                 lyx_gui::parse_init(argc, argv);
  97         }
  98
  99         // check for any spurious extra arguments
 100         // other than documents
 101         for (int argi = 1; argi < argc ; ++argi) {
 102                 if (argv[argi][0] == '-') {
 103                         lyxerr << _("Wrong command line option `")
 104                                << argv[argi]
 105                                << _("'. Exiting.") << endl;
 106                         exit(1);
 107                 }
 108         }
 109
 110         // Initialization of LyX (reads lyxrc and more)
 111         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 112         init(want_gui);
 113         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 114
 115         if (want_gui) {
 116                 lyx_gui::parse_lyxrc();
 117         }
 118
 119         vector<string> files;
 120
 121         for (int argi = argc - 1; argi >= 1; --argi) {
 122                 files.push_back(argv[argi]);
 123         }
 124
 125         if (first_start) {
 126                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 127         }
 128
 129         // Execute batch commands if available
 130         if (!batch_command.empty()) {
 131                 lyxerr[Debug::INIT] << "About to handle -x '"
 132                        << batch_command << "'" << endl;
 133
 134                 Buffer * last_loaded = 0;
 135
 136                 vector<string>::iterator it = files.begin();
 137                 vector<string>::iterator end = files.end();
 138                 for (; it != end; ++it) {
 139                         last_loaded = bufferlist.loadLyXFile(*it);
 140                 }
 141
 142                 files.clear();
 143
 144                 // no buffer loaded, create one
 145                 if (!last_loaded)
 146                         last_loaded = bufferlist.newFile("tmpfile", string());
 147
 148                 bool success = false;
 149
 150                 // try to dispatch to last loaded buffer first
 151                 bool const dispatched = last_loaded->dispatch(batch_command, &success);
 152
 153                 if (dispatched) {
 154                         QuitLyX();
 155                         exit(!success);
 156                 }
 157         }
 158
 159         lyx_gui::start(batch_command, files);
 160 }
 161
 162
 163 extern "C" {
 164
 165 static void error_handler(int err_sig)
 166 {
 167         switch (err_sig) {
 168         case SIGHUP:
 169                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 170                 break;
 171         case SIGINT:
 172                 // no comments
 173                 break;
 174         case SIGFPE:
 175                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 176                 break;
 177         case SIGSEGV:
 178                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 179                 lyxerr <<
 180                         "Sorry, you have found a bug in LyX. "
 181                         "Please read the bug-reporting instructions "
 182                         "in Help->Introduction and send us a bug report, "
 183                         "if necessary. Thanks !" << endl;
 184                 break;
 185         case SIGTERM:
 186                 // no comments
 187                 break;
 188         }
 189
 190         // Deinstall the signal handlers
 191         signal(SIGHUP, SIG_DFL);
 192         signal(SIGINT, SIG_DFL);
 193         signal(SIGFPE, SIG_DFL);
 194         signal(SIGSEGV, SIG_DFL);
 195         signal(SIGTERM, SIG_DFL);
 196
 197         LyX::emergencyCleanup();
 198
 199         lyxerr << "Bye." << endl;
 200         if (err_sig!= SIGHUP &&
 201            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 202                 lyx::abort();
 203         exit(0);
 204 }
 205
 206 }
 207
 208
 209 void LyX::init(bool gui)
 210 {
 211         signal(SIGHUP, error_handler);
 212         signal(SIGFPE, error_handler);
 213         signal(SIGSEGV, error_handler);
 214         signal(SIGINT, error_handler);
 215         signal(SIGTERM, error_handler);
 216
 217         //
 218         // Determine path of binary
 219         //
 220
 221         string binpath = os::binpath();
 222         string binname = os::binname();
 223         string fullbinname = MakeAbsPath(binname, binpath);
 224
 225         if (binpath.empty()) {
 226                 lyxerr << _("Warning: could not determine path of binary.")
 227                        << "\n"
 228                        << _("If you have problems, try starting LyX with an absolute path.")
 229                        << endl;
 230         }
 231         lyxerr[Debug::INIT] << "Name of binary: " << binname << endl;
 232         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 233
 234         //
 235         // Determine system directory.
 236         //
 237
 238         // Directories are searched in this order:
 239         // 1) -sysdir command line parameter
 240         // 2) LYX_DIR_13x environment variable
 241         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 242         // 4) <path of binary>/../share/<name of binary>/
 243         // 4a) repeat 4 after following the Symlink if <path of
 244         //     binary> is a symbolic link.
 245         // 5) hardcoded lyx_dir
 246         // The directory is checked for the presence of the file
 247         // "chkconfig.ltx", and if that is present, the directory
 248         // is accepted as the system directory.
 249         // If no chkconfig.ltx file is found, a warning is given,
 250         // and the hardcoded lyx_dir is used.
 251
 252         // If we had a command line switch, system_lyxdir is already set
 253         string searchpath;
 254         if (!system_lyxdir.empty())
 255                 searchpath = MakeAbsPath(system_lyxdir) + ';';
 256
 257         string const lyxdir = GetEnvPath("LYX_DIR_13x");
 258
 259         if (!lyxdir.empty()) {
 260                 lyxerr[Debug::INIT] << "LYX_DIR_13x: " << lyxdir << endl;
 261                 searchpath += lyxdir + ';';
 262         }
 263
 264         string fullbinpath = binpath;
 265         FileInfo file(fullbinname, true);
 266         if (file.isLink()) {
 267                 lyxerr[Debug::INIT] << "binary is a link" << endl;
 268                 string link;
 269                 if (LyXReadLink(fullbinname, link, true)) {
 270                         // Path of binary/../share/name of binary/
 271                         searchpath += NormalizePath(AddPath(binpath,
 272                                                             "../share/")
 273                                                     + OnlyFilename(binname));
 274                         searchpath += ';';
 275                         fullbinpath = link;
 276                         binpath = MakeAbsPath(OnlyPath(fullbinpath));
 277                 }
 278         }
 279
 280         bool followlink;
 281         do {
 282                 // Path of binary/../share/name of binary/
 283                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 284                       OnlyFilename(binname)) + ';';
 285
 286                 // Follow Symlinks
 287                 FileInfo file(fullbinpath, true);
 288                 followlink = file.isLink();
 289                 if (followlink) {
 290                         lyxerr << " directory " << fullbinpath
 291                                << " is a link" << endl;
 292                         string link;
 293                         if (LyXReadLink(fullbinpath, link, true)) {
 294                                 fullbinpath = link;
 295                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 296                         }
 297                         else {
 298                                 followlink = false;
 299                         }
 300                 }
 301         } while (followlink);
 302
 303         // <path of binary>/TOP_SRCDIR/lib
 304         build_lyxdir = MakeAbsPath("../lib", binpath);
 305         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 306                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 307                                           binpath) + ';';
 308                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 309                         "place... yes" << endl;
 310         } else {
 311                 lyxerr[Debug::INIT]
 312                         << "Checking whether LyX is run in place... no"
 313                         << endl;
 314                 build_lyxdir.erase();
 315         }
 316
 317         // Hardcoded dir
 318         searchpath += LYX_DIR;
 319
 320         lyxerr[Debug::INIT] << "System directory search path: "
 321                             << searchpath << endl;
 322
 323         string const filename = "chkconfig.ltx";
 324         string const temp = FileOpenSearch(searchpath, filename, string());
 325         system_lyxdir = OnlyPath(temp);
 326
 327         // Reduce "path/../path" stuff out of system directory
 328         system_lyxdir = NormalizePath(system_lyxdir);
 329
 330         bool path_shown = false;
 331
 332         // Warn if environment variable is set, but unusable
 333         if (!lyxdir.empty()) {
 334                 if (system_lyxdir != NormalizePath(lyxdir)) {
 335                         lyxerr <<_("LYX_DIR_13x environment variable no good.")
 336                                << '\n'
 337                                << _("System directory set to: ")
 338                                << system_lyxdir << endl;
 339                         path_shown = true;
 340                 }
 341         }
 342
 343         // Warn the user if we couldn't find "chkconfig.ltx"
 344         if (system_lyxdir == "./") {
 345                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 346                        <<_("Try the '-sysdir' command line parameter or ")
 347                        <<_("set the environment variable LYX_DIR_13x to the "
 348                            "LyX system directory ")
 349                        << _("containing the file `chkconfig.ltx'.") << endl;
 350                 if (!path_shown) {
 351                         FileInfo fi(LYX_DIR);
 352                         if (!fi.exist()) {
 353                                 lyxerr << "Couldn't even find the default LYX_DIR." << endl
 354                                         << "Giving up." << endl;
 355                                 exit(1);
 356                         }
 357                         lyxerr << _("Using built-in default ")
 358                                << LYX_DIR << _(" but expect problems.")
 359                                << endl;
 360                 } else {
 361                         lyxerr << _("Expect problems.") << endl;
 362                 }
 363                 system_lyxdir = LYX_DIR;
 364                 path_shown = true;
 365         }
 366
 367         if (!path_shown)
 368                 lyxerr[Debug::INIT] << "System directory: '"
 369                                     << system_lyxdir << '\'' << endl;
 370
 371         //
 372         // Determine user lyx-dir
 373         //
 374
 375         // Directories are searched in this order:
 376         // 1) -userdir command line parameter
 377         // 2) LYX_USERDIR_13x environment variable
 378         // 3) $HOME/.<name of binary>
 379
 380         // If we had a command line switch, user_lyxdir is already set
 381         bool explicit_userdir = true;
 382         if (user_lyxdir.empty()) {
 383
 384                 // LYX_USERDIR_13x environment variable
 385                 user_lyxdir = GetEnvPath("LYX_USERDIR_13x");
 386
 387                 // default behaviour
 388                 if (user_lyxdir.empty())
 389                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 390                                                         string(".") + PACKAGE);
 391                         explicit_userdir = false;
 392         }
 393
 394         lyxerr[Debug::INIT] << "User LyX directory: '"
 395                             <<  user_lyxdir << '\'' << endl;
 396
 397         // Check that user LyX directory is ok. We don't do that if
 398         // running in batch mode.
 399         if (gui) {
 400                 queryUserLyXDir(explicit_userdir);
 401         } else {
 402                 first_start = false;
 403         }
 404
 405         //
 406         // Shine up lyxrc defaults
 407         //
 408
 409         // Default template path: system_dir/templates
 410         if (lyxrc.template_path.empty()) {
 411                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 412         }
 413
 414         // Default lastfiles file: $HOME/.lyx/lastfiles
 415         if (lyxrc.lastfiles.empty()) {
 416                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 417         }
 418
 419         // Disable gui when either lyxrc or easyparse says so
 420         if (!gui)
 421                 lyxrc.use_gui = false;
 422
 423         //
 424         // Read configuration files
 425         //
 426
 427         readRcFile("lyxrc.defaults");
 428         system_lyxrc = lyxrc;
 429         system_formats = formats;
 430         system_converters = converters;
 431         system_lcolor = lcolor;
 432
 433         // If there is a preferences file we read that instead
 434         // of the old lyxrc file.
 435         if (!readRcFile("preferences"))
 436             readRcFile("lyxrc");
 437
 438         readEncodingsFile("encodings");
 439         readLanguagesFile("languages");
 440
 441         // Load the layouts
 442         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 443         LyXSetStyle();
 444
 445         // Ensure that we have really read a bind file, so that LyX is
 446         // usable.
 447         lyxrc.readBindFileIfNeeded();
 448
 449         // Read menus
 450         readUIFile(lyxrc.ui_file);
 451
 452         // Bind the X dead keys to the corresponding LyX functions if
 453         // necessary.
 454         if (lyxrc.override_x_deadkeys)
 455                 deadKeyBindings(toplevel_keymap.get());
 456
 457         if (lyxerr.debugging(Debug::LYXRC)) {
 458                 lyxrc.print();
 459         }
 460
 461         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 462         system_tempdir = os::getTmpDir();
 463         if (lyxerr.debugging(Debug::INIT)) {
 464                 lyxerr << "LyX tmp dir: `" << system_tempdir << '\'' << endl;
 465         }
 466
 467         lyxerr[Debug::INIT] << "Reading lastfiles `"
 468                             << lyxrc.lastfiles << "'..." << endl;
 469         lastfiles.reset(new LastFiles(lyxrc.lastfiles,
 470                                       lyxrc.check_lastfiles,
 471                                       lyxrc.num_lastfiles));
 472 }
 473
 474
 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 void LyX::deadKeyBindings(kb_keymap * kbmap)
 547 {
 548         // bindKeyings for transparent handling of deadkeys
 549         // The keysyms are gotten from XFree86 X11R6
 550         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 551         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 552         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 553         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 554         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 555         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 556         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 557         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 558         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 559         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 560         // nothing with this name
 561         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 562         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 563         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 564         // nothing with this name either...
 565         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 566         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 567         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 568         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 569 }
 570
 571
 572 void LyX::queryUserLyXDir(bool explicit_userdir)
 573 {
 574         string const configure_script = AddName(system_lyxdir, "configure");
 575
 576         // Does user directory exist?
 577         FileInfo fileInfo(user_lyxdir);
 578         if (fileInfo.isOK() && fileInfo.isDir()) {
 579                 first_start = false;
 580                 FileInfo script(configure_script);
 581                 FileInfo defaults(AddName(user_lyxdir, "lyxrc.defaults"));
 582                 if (defaults.isOK() && script.isOK()
 583                     && defaults.getModificationTime() < script.getModificationTime()) {
 584                         lyxerr << _("LyX: reconfiguring user directory")
 585                                << endl;
 586                         Path p(user_lyxdir);
 587                         ::system(configure_script.c_str());
 588                         lyxerr << "LyX: " << _("Done!") << endl;
 589                 }
 590                 return;
 591         }
 592
 593         first_start = !explicit_userdir;
 594
 595         // If the user specified explicitly a directory, ask whether
 596         // to create it (otherwise, always create it)
 597         if (explicit_userdir &&
 598             !Alert::askQuestion(_("You have specified an invalid LyX directory."),
 599                          _("It is needed to keep your own configuration."),
 600                          _("Should I try to set it up for you (recommended)?"))) {
 601                 lyxerr << _("Running without personal LyX directory.") << endl;
 602                 // No, let's use $HOME instead.
 603                 user_lyxdir = GetEnvPath("HOME");
 604                 return;
 605         }
 606
 607         lyxerr << _("LyX: Creating directory ") << user_lyxdir
 608                << _(" and running configure...") << endl;
 609
 610         if (!createDirectory(user_lyxdir, 0755)) {
 611                 // Failed, let's use $HOME instead.
 612                 user_lyxdir = GetEnvPath("HOME");
 613                 lyxerr << _("Failed. Will use ") << user_lyxdir
 614                        << _(" instead.") << endl;
 615                 return;
 616         }
 617
 618         // Run configure in user lyx directory
 619         Path p(user_lyxdir);
 620         ::system(configure_script.c_str());
 621         lyxerr << "LyX: " << _("Done!") << endl;
 622 }
 623
 624
 625 bool LyX::readRcFile(string const & name)
 626 {
 627         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 628
 629         string const lyxrc_path = LibFileSearch(string(), name);
 630         if (!lyxrc_path.empty()) {
 631                 lyxerr[Debug::INIT] << "Found " << name
 632                                     << " in " << lyxrc_path << endl;
 633                 if (lyxrc.read(lyxrc_path) < 0) {
 634                         Alert::alert(_("LyX Warning!"),
 635                                    _("Error while reading ") + lyxrc_path + ".",
 636                                    _("Using built-in defaults."));
 637                         return false;
 638                 }
 639                 return true;
 640         } else {
 641                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 642         }
 643
 644         return false;
 645 }
 646
 647
 648 // Read the ui file `name'
 649 void LyX::readUIFile(string const & name)
 650 {
 651         enum Uitags {
 652                 ui_menuset = 1,
 653                 ui_toolbar,
 654                 ui_last
 655         };
 656
 657         struct keyword_item uitags[ui_last - 1] = {
 658                 { "menuset", ui_menuset },
 659                 { "toolbar", ui_toolbar }
 660         };
 661
 662         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 663
 664         string const ui_path = LibFileSearch("ui", name, "ui");
 665
 666         if (ui_path.empty()) {
 667                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 668                 menubackend.defaults();
 669                 return;
 670         }
 671
 672         lyxerr[Debug::INIT] << "Found " << name
 673                             << " in " << ui_path << endl;
 674         LyXLex lex(uitags, ui_last - 1);
 675         lex.setFile(ui_path);
 676         if (!lex.isOK()) {
 677                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 678                        << endl;
 679         }
 680
 681         if (lyxerr.debugging(Debug::PARSER))
 682                 lex.printTable(lyxerr);
 683
 684         while (lex.isOK()) {
 685                 switch (lex.lex()) {
 686                 case ui_menuset:
 687                         menubackend.read(lex);
 688                         break;
 689
 690                 case ui_toolbar:
 691                         toolbardefaults.read(lex);
 692                         break;
 693
 694                 default:
 695                         if (!rtrim(lex.getString()).empty())
 696                                 lex.printError("LyX::ReadUIFile: "
 697                                                "Unknown menu tag: `$$Token'");
 698                         break;
 699                 }
 700         }
 701 }
 702
 703
 704 // Read the languages file `name'
 705 void LyX::readLanguagesFile(string const & name)
 706 {
 707         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 708
 709         string const lang_path = LibFileSearch(string(), name);
 710         if (lang_path.empty()) {
 711                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 712                 languages.setDefaults();
 713                 return;
 714         }
 715         languages.read(lang_path);
 716 }
 717
 718
 719 // Read the encodings file `name'
 720 void LyX::readEncodingsFile(string const & name)
 721 {
 722         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 723
 724         string const enc_path = LibFileSearch(string(), name);
 725         if (enc_path.empty()) {
 726                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 727                 return;
 728         }
 729         encodings.read(enc_path);
 730 }
 731
 732
 733 namespace {
 734
 735 bool is_gui = true;
 736 string batch;
 737
 738 /// return the the number of arguments consumed
 739 typedef boost::function<int, string const &, string const &> cmd_helper;
 740
 741 int parse_dbg(string const & arg, string const &)
 742 {
 743         if (arg.empty()) {
 744                 lyxerr << _("List of supported debug flags:") << endl;
 745                 Debug::showTags(lyxerr);
 746                 exit(0);
 747         }
 748         lyxerr << _("Setting debug level to ") << arg << endl;
 749         lyxerr.level(Debug::value(arg));
 750         Debug::showLevel(lyxerr, lyxerr.level());
 751         return 1;
 752 }
 753
 754 int parse_help(string const &, string const &)
 755 {
 756         lyxerr <<
 757                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 758                   "Command line switches (case sensitive):\n"
 759                   "\t-help              summarize LyX usage\n"
 760                   "\t-userdir dir       try to set user directory to dir\n"
 761                   "\t-sysdir dir        try to set system directory to dir\n"
 762                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 763                   "\t-dbg feature[,feature]...\n"
 764                   "                  select the features to debug.\n"
 765                   "                  Type `lyx -dbg' to see the list of features\n"
 766                   "\t-x [--execute] command\n"
 767                   "                  where command is a lyx command.\n"
 768                   "\t-e [--export] fmt\n"
 769                   "                  where fmt is the export format of choice.\n"
 770                   "\t-i [--import] fmt file.xxx\n"
 771                   "                  where fmt is the import format of choice\n"
 772                   "                  and file.xxx is the file to be imported.\n"
 773                   "\t-version        summarize version and build info\n"
 774                   "Check the LyX man page for more details.") << endl;
 775         exit(0);
 776         return 0;
 777 }
 778
 779 int parse_version(string const &, string const &)
 780 {
 781         lyxerr << "LyX " << lyx_version
 782                << " of " << lyx_release_date << endl;
 783         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 784
 785         lyxerr << lyx_version_info << endl;
 786         exit(0);
 787         return 0;
 788 }
 789
 790 int parse_sysdir(string const & arg, string const &)
 791 {
 792         if (arg.empty()) {
 793                 lyxerr << _("Missing directory for -sysdir switch") << endl;
 794                 exit(1);
 795         }
 796         system_lyxdir = arg;
 797         return 1;
 798 }
 799
 800 int parse_userdir(string const & arg, string const &)
 801 {
 802         if (arg.empty()) {
 803                 lyxerr << _("Missing directory for -userdir switch") << endl;
 804                 exit(1);
 805         }
 806         user_lyxdir = arg;
 807         return 1;
 808 }
 809
 810 int parse_execute(string const & arg, string const &)
 811 {
 812         if (arg.empty()) {
 813                 lyxerr << _("Missing command string after --execute switch") << endl;
 814                 exit(1);
 815         }
 816         batch = arg;
 817         // Argh. Setting gui to false segfaults..
 818         // FIXME: when ? how ?
 819         // is_gui = false;
 820         return 1;
 821 }
 822
 823 int parse_export(string const & type, string const &)
 824 {
 825         if (type.empty()) {
 826                 lyxerr << _("Missing file type [eg latex, ps...] after "
 827                         "--export switch") << endl;
 828                 exit(1);
 829         }
 830         batch = "buffer-export " + type;
 831         is_gui = false;
 832         return 1;
 833 }
 834
 835 int parse_import(string const & type, string const & file)
 836 {
 837         if (type.empty()) {
 838                 lyxerr << _("Missing file type [eg latex, ps...] after "
 839                         "--import switch") << endl;
 840                 exit(1);
 841         }
 842         if (file.empty()) {
 843                 lyxerr << _("Missing filename for --import") << endl;
 844                 exit(1);
 845         }
 846
 847         batch = "buffer-import " + type + " " + file;
 848         return 2;
 849 }
 850
 851 } // namespace anon
 852
 853
 854 bool LyX::easyParse(int & argc, char * argv[])
 855 {
 856         std::map<string, cmd_helper> cmdmap;
 857
 858         cmdmap["-dbg"] = parse_dbg;
 859         cmdmap["-help"] = parse_help;
 860         cmdmap["--help"] = parse_help;
 861         cmdmap["-version"] = parse_version;
 862         cmdmap["--version"] = parse_version;
 863         cmdmap["-sysdir"] = parse_sysdir;
 864         cmdmap["-userdir"] = parse_userdir;
 865         cmdmap["-x"] = parse_execute;
 866         cmdmap["--execute"] = parse_execute;
 867         cmdmap["-e"] = parse_export;
 868         cmdmap["--export"] = parse_export;
 869         cmdmap["-i"] = parse_import;
 870         cmdmap["--import"] = parse_import;
 871
 872         for (int i = 1; i < argc; ++i) {
 873                 std::map<string, cmd_helper>::const_iterator it
 874                         = cmdmap.find(argv[i]);
 875
 876                 // don't complain if not found - may be parsed later
 877                 if (it == cmdmap.end())
 878                         continue;
 879
 880                 string arg((i + 1 < argc) ? argv[i + 1] : "");
 881                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
 882
 883                 int const remove = 1 + it->second(arg, arg2);
 884
 885                 // Now, remove used arguments by shifting
 886                 // the following ones remove places down.
 887                 argc -= remove;
 888                 for (int j = i; j < argc; ++j)
 889                         argv[j] = argv[j + remove];
 890                 --i;
 891         }
 892
 893         batch_command = batch;
 894
 895         return is_gui;
 896 }