src/lyx_main.C

   1 /**
   2  * \file lyx_main.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alfredo Braunstein
   7  * \author Lars Gullik Bjønnes
   8  * \author Jean-Marc Lasgouttes
   9  * \author John Levon
  10  * \author André Pönitz
  11  *
  12  * Full author contact details are available in file CREDITS.
  13  */
  14
  15 #include <config.h>
  16 #include <version.h>
  17
  18 #include "lyx_main.h"
  19
  20 #include "buffer.h"
  21 #include "buffer_funcs.h"
  22 #include "bufferlist.h"
  23 #include "converter.h"
  24 #include "debug.h"
  25 #include "encoding.h"
  26 #include "errorlist.h"
  27 #include "format.h"
  28 #include "gettext.h"
  29 #include "kbmap.h"
  30 #include "language.h"
  31 #include "lastfiles.h"
  32 #include "LColor.h"
  33 #include "lyxfunc.h"
  34 #include "lyxlex.h"
  35 #include "lyxrc.h"
  36 #include "lyxtextclasslist.h"
  37 #include "lyxserver.h"
  38 #include "MenuBackend.h"
  39 #include "mover.h"
  40 #include "ToolbarBackend.h"
  41
  42 #include "mathed/math_inset.h"
  43
  44 #include "frontends/Alert.h"
  45 #include "frontends/lyx_gui.h"
  46 #include "frontends/LyXView.h"
  47
  48 #include "support/FileInfo.h"
  49 #include "support/filetools.h"
  50 #include "support/lyxlib.h"
  51 #include "support/os.h"
  52 #include "support/path.h"
  53 #include "support/path_defines.h"
  54
  55 #include <boost/bind.hpp>
  56
  57 #include <iostream>
  58 #include <csignal>
  59
  60 using lyx::support::AddName;
  61 using lyx::support::AddPath;
  62 using lyx::support::bformat;
  63 using lyx::support::createDirectory;
  64 using lyx::support::createLyXTmpDir;
  65 using lyx::support::FileInfo;
  66 using lyx::support::FileSearch;
  67 using lyx::support::GetEnv;
  68 using lyx::support::GetEnvPath;
  69 using lyx::support::i18nLibFileSearch;
  70 using lyx::support::LibFileSearch;
  71 using lyx::support::Path;
  72 using lyx::support::rtrim;
  73 using lyx::support::setLyxPaths;
  74 using lyx::support::system_lyxdir;
  75 using lyx::support::user_lyxdir;
  76
  77 using lyx::support::os::getTmpDir;
  78 using lyx::support::os::setTmpDir;
  79
  80 using std::endl;
  81 using std::string;
  82 using std::vector;
  83
  84 #ifndef CXX_GLOBAL_CSTD
  85 using std::exit;
  86 using std::signal;
  87 using std::system;
  88 #endif
  89
  90
  91 extern void QuitLyX();
  92
  93 extern LyXServer * lyxserver;
  94
  95 // This is the global bufferlist object
  96 BufferList bufferlist;
  97
  98 // convenient to have it here.
  99 boost::scoped_ptr<kb_keymap> toplevel_keymap;
 100
 101 namespace {
 102
 103 void showFileError(string const & error)
 104 {
 105         Alert::warning(_("Could not read configuration file"),
 106                    bformat(_("Error while reading the configuration file\n%1$s.\n"
 107                      "Please check your installation."), error));
 108         exit(EXIT_FAILURE);
 109 }
 110
 111 } // namespace anon
 112
 113
 114 boost::scoped_ptr<LyX> LyX::singleton_;
 115
 116 void LyX::exec(int & argc, char * argv[])
 117 {
 118         BOOST_ASSERT(!singleton_.get());
 119         // We must return from this before launching the gui so that
 120         // other parts of the code can access singleton_ through
 121         // LyX::ref and LyX::cref.
 122         singleton_.reset(new LyX);
 123         // Start the real execution loop.
 124         singleton_->priv_exec(argc, argv);
 125 }
 126
 127
 128 LyX & LyX::ref()
 129 {
 130         BOOST_ASSERT(singleton_.get());
 131         return *singleton_.get();
 132 }
 133
 134
 135 LyX const & LyX::cref()
 136 {
 137         BOOST_ASSERT(singleton_.get());
 138         return *singleton_.get();
 139 }
 140
 141
 142 LyX::LyX()
 143         : first_start(false)
 144 {}
 145
 146
 147 LastFiles & LyX::lastfiles()
 148 {
 149         BOOST_ASSERT(lastfiles_.get());
 150         return *lastfiles_.get();
 151 }
 152
 153
 154 LastFiles const & LyX::lastfiles() const
 155 {
 156         BOOST_ASSERT(lastfiles_.get());
 157         return *lastfiles_.get();
 158 }
 159
 160
 161 void LyX::addLyXView(boost::shared_ptr<LyXView> const & lyxview)
 162 {
 163         views_.push_back(lyxview);
 164 }
 165
 166
 167 Buffer const * const LyX::updateInset(InsetBase const * inset) const
 168 {
 169         if (!inset)
 170                 return 0;
 171
 172         Buffer const * buffer_ptr = 0;
 173         ViewList::const_iterator it = views_.begin();
 174         ViewList::const_iterator const end = views_.end();
 175         for (; it != end; ++it) {
 176                 Buffer const * ptr = (*it)->updateInset(inset);
 177                 if (ptr)
 178                         buffer_ptr = ptr;
 179         }
 180         return buffer_ptr;
 181 }
 182
 183
 184 void LyX::priv_exec(int & argc, char * argv[])
 185 {
 186         // Here we need to parse the command line. At least
 187         // we need to parse for "-dbg" and "-help"
 188         bool const want_gui = easyParse(argc, argv);
 189
 190         if (want_gui)
 191                 lyx_gui::parse_init(argc, argv);
 192
 193         // check for any spurious extra arguments
 194         // other than documents
 195         for (int argi = 1; argi < argc ; ++argi) {
 196                 if (argv[argi][0] == '-') {
 197                         lyxerr << bformat(_("Wrong command line option `%1$s'. Exiting."),
 198                                 argv[argi]) << endl;
 199                         exit(1);
 200                 }
 201         }
 202
 203         // Initialization of LyX (reads lyxrc and more)
 204         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 205         init(want_gui);
 206         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 207
 208         if (want_gui)
 209                 lyx_gui::parse_lyxrc();
 210
 211         initMath();
 212
 213         vector<string> files;
 214
 215         for (int argi = argc - 1; argi >= 1; --argi)
 216                 files.push_back(argv[argi]);
 217
 218         if (first_start)
 219                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 220
 221         // Execute batch commands if available
 222         if (!batch_command.empty()) {
 223
 224                 lyxerr[Debug::INIT] << "About to handle -x '"
 225                        << batch_command << '\'' << endl;
 226
 227                 Buffer * last_loaded = 0;
 228
 229                 vector<string>::const_iterator it = files.begin();
 230                 vector<string>::const_iterator end = files.end();
 231
 232                 for (; it != end; ++it) {
 233                         // get absolute path of file and add ".lyx" to
 234                         // the filename if necessary
 235                         string s = FileSearch(string(), *it, "lyx");
 236                         if (s.empty()) {
 237                                 last_loaded = newFile(*it, string(), true);
 238                         } else {
 239                                 Buffer * buf = bufferlist.newBuffer(s, false);
 240                                 buf->error.connect(boost::bind(&LyX::printError, this, _1));
 241                                 if (loadLyXFile(buf, s))
 242                                         last_loaded = buf;
 243                                 else
 244                                         bufferlist.release(buf);
 245                         }
 246                 }
 247
 248                 // try to dispatch to last loaded buffer first
 249                 if (last_loaded) {
 250                         bool success = false;
 251                         if (last_loaded->dispatch(batch_command, &success)) {
 252                                 QuitLyX();
 253                                 exit(!success);
 254                         }
 255                 }
 256                 files.clear(); // the files are already loaded
 257         }
 258
 259         lyx_gui::start(batch_command, files);
 260 }
 261
 262
 263 extern "C" {
 264
 265 static void error_handler(int err_sig)
 266 {
 267         // Throw away any signals other than the first one received.
 268         static sig_atomic_t handling_error = false;
 269         if (handling_error)
 270                 return;
 271         handling_error = true;
 272
 273         // We have received a signal indicating a fatal error, so
 274         // try and save the data ASAP.
 275         LyX::cref().emergencyCleanup();
 276
 277         // These lyxerr calls may or may not work:
 278
 279         // Signals are asynchronous, so the main program may be in a very
 280         // fragile state when a signal is processed and thus while a signal
 281         // handler function executes.
 282         // In general, therefore, we should avoid performing any
 283         // I/O operations or calling most library and system functions from
 284         // signal handlers.
 285
 286         // This shouldn't matter here, however, as we've already invoked
 287         // emergencyCleanup.
 288         switch (err_sig) {
 289         case SIGHUP:
 290                 lyxerr << "\nlyx: SIGHUP signal caught\nBye." << endl;
 291                 break;
 292         case SIGFPE:
 293                 lyxerr << "\nlyx: SIGFPE signal caught\nBye." << endl;
 294                 break;
 295         case SIGSEGV:
 296                 lyxerr << "\nlyx: SIGSEGV signal caught\n"
 297                           "Sorry, you have found a bug in LyX. "
 298                           "Please read the bug-reporting instructions "
 299                           "in Help->Introduction and send us a bug report, "
 300                           "if necessary. Thanks !\nBye." << endl;
 301                 break;
 302         case SIGINT:
 303         case SIGTERM:
 304                 // no comments
 305                 break;
 306         }
 307
 308         // Deinstall the signal handlers
 309         signal(SIGHUP, SIG_DFL);
 310         signal(SIGINT, SIG_DFL);
 311         signal(SIGFPE, SIG_DFL);
 312         signal(SIGSEGV, SIG_DFL);
 313         signal(SIGTERM, SIG_DFL);
 314
 315         if (err_sig == SIGSEGV ||
 316             (err_sig != SIGHUP && !GetEnv("LYXDEBUG").empty()))
 317                 lyx::support::abort();
 318         exit(0);
 319 }
 320
 321 }
 322
 323
 324 void LyX::printError(ErrorItem const & ei)
 325 {
 326         std::cerr << _("LyX: ") << ei.error
 327                   << ':' << ei.description << std::endl;
 328
 329 }
 330
 331
 332 void LyX::init(bool gui)
 333 {
 334         signal(SIGHUP, error_handler);
 335         signal(SIGFPE, error_handler);
 336         signal(SIGSEGV, error_handler);
 337         signal(SIGINT, error_handler);
 338         signal(SIGTERM, error_handler);
 339         // SIGPIPE can be safely ignored.
 340
 341         bool const explicit_userdir = setLyxPaths();
 342
 343         // Check that user LyX directory is ok. We don't do that if
 344         // running in batch mode.
 345         if (gui) {
 346                 queryUserLyXDir(explicit_userdir);
 347         } else {
 348                 first_start = false;
 349         }
 350
 351         // Disable gui when easyparse says so
 352         lyx_gui::use_gui = gui;
 353
 354         if (lyxrc.template_path.empty()) {
 355                 lyxrc.template_path = AddPath(system_lyxdir(), "templates");
 356         }
 357
 358         if (lyxrc.lastfiles.empty()) {
 359                 lyxrc.lastfiles = AddName(user_lyxdir(), "lastfiles");
 360         }
 361
 362         if (lyxrc.roman_font_name.empty())
 363                 lyxrc.roman_font_name = lyx_gui::roman_font_name();
 364         if (lyxrc.sans_font_name.empty())
 365                 lyxrc.sans_font_name = lyx_gui::sans_font_name();
 366         if (lyxrc.typewriter_font_name.empty())
 367                 lyxrc.typewriter_font_name = lyx_gui::typewriter_font_name();
 368
 369         //
 370         // Read configuration files
 371         //
 372
 373         readRcFile("lyxrc.defaults");
 374         system_lyxrc = lyxrc;
 375         system_formats = formats;
 376         system_converters = converters;
 377         system_movers = movers;
 378         system_lcolor = lcolor;
 379
 380         string prefsfile = "preferences";
 381         // back compatibility to lyxs < 1.1.6
 382         if (LibFileSearch(string(), prefsfile).empty())
 383                 prefsfile = "lyxrc";
 384         if (!LibFileSearch(string(), prefsfile).empty())
 385                 readRcFile(prefsfile);
 386
 387         readEncodingsFile("encodings");
 388         readLanguagesFile("languages");
 389
 390         // Load the layouts
 391         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 392         LyXSetStyle();
 393
 394         if (gui) {
 395                 // Set up bindings
 396                 toplevel_keymap.reset(new kb_keymap);
 397                 defaultKeyBindings(toplevel_keymap.get());
 398                 toplevel_keymap->read(lyxrc.bind_file);
 399
 400                 // Read menus
 401                 readUIFile(lyxrc.ui_file);
 402         }
 403
 404         if (lyxerr.debugging(Debug::LYXRC))
 405                 lyxrc.print();
 406
 407         setTmpDir(createLyXTmpDir(lyxrc.tempdir_path));
 408         if (getTmpDir().empty()) {
 409                 Alert::error(_("Could not create temporary directory"),
 410                              bformat(_("Could not create a temporary directory in\n"
 411                                        "%1$s. Make sure that this\n"
 412                                        "path exists and is writable and try again."),
 413                                      lyxrc.tempdir_path));
 414                 // createLyXTmpDir() tries sufficiently hard to create a
 415                 // usable temp dir, so the probability to come here is
 416                 // close to zero. We therefore don't try to overcome this
 417                 // problem with e.g. asking the user for a new path and
 418                 // trying again but simply exit.
 419                 exit(EXIT_FAILURE);
 420         }
 421
 422         if (lyxerr.debugging(Debug::INIT)) {
 423                 lyxerr << "LyX tmp dir: `" << getTmpDir() << '\'' << endl;
 424         }
 425
 426         lyxerr[Debug::INIT] << "Reading lastfiles `"
 427                             << lyxrc.lastfiles << "'..." << endl;
 428         lastfiles_.reset(new LastFiles(lyxrc.lastfiles,
 429                                        lyxrc.check_lastfiles,
 430                                        lyxrc.num_lastfiles));
 431 }
 432
 433
 434 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 435 {
 436         kbmap->bind("Right", FuncRequest(LFUN_RIGHT));
 437         kbmap->bind("Left", FuncRequest(LFUN_LEFT));
 438         kbmap->bind("Up", FuncRequest(LFUN_UP));
 439         kbmap->bind("Down", FuncRequest(LFUN_DOWN));
 440
 441         kbmap->bind("Tab", FuncRequest(LFUN_CELL_FORWARD));
 442         kbmap->bind("ISO_Left_Tab", FuncRequest(LFUN_CELL_FORWARD));
 443
 444         kbmap->bind("Home", FuncRequest(LFUN_HOME));
 445         kbmap->bind("End", FuncRequest(LFUN_END));
 446         kbmap->bind("Prior", FuncRequest(LFUN_PRIOR));
 447         kbmap->bind("Next", FuncRequest(LFUN_NEXT));
 448
 449         kbmap->bind("Return", FuncRequest(LFUN_BREAKPARAGRAPH));
 450         //kbmap->bind("~C-~S-~M-nobreakspace", FuncRequest(LFUN_PROTECTEDSPACE));
 451
 452         kbmap->bind("Delete", FuncRequest(LFUN_DELETE));
 453         kbmap->bind("BackSpace", FuncRequest(LFUN_BACKSPACE));
 454
 455         // kbmap->bindings to enable the use of the numeric keypad
 456         // e.g. Num Lock set
 457         //kbmap->bind("KP_0", FuncRequest(LFUN_SELFINSERT));
 458         //kbmap->bind("KP_Decimal", FuncRequest(LFUN_SELFINSERT));
 459         kbmap->bind("KP_Enter", FuncRequest(LFUN_BREAKPARAGRAPH));
 460         //kbmap->bind("KP_1", FuncRequest(LFUN_SELFINSERT));
 461         //kbmap->bind("KP_2", FuncRequest(LFUN_SELFINSERT));
 462         //kbmap->bind("KP_3", FuncRequest(LFUN_SELFINSERT));
 463         //kbmap->bind("KP_4", FuncRequest(LFUN_SELFINSERT));
 464         //kbmap->bind("KP_5", FuncRequest(LFUN_SELFINSERT));
 465         //kbmap->bind("KP_6", FuncRequest(LFUN_SELFINSERT));
 466         //kbmap->bind("KP_Add", FuncRequest(LFUN_SELFINSERT));
 467         //kbmap->bind("KP_7", FuncRequest(LFUN_SELFINSERT));
 468         //kbmap->bind("KP_8", FuncRequest(LFUN_SELFINSERT));
 469         //kbmap->bind("KP_9", FuncRequest(LFUN_SELFINSERT));
 470         //kbmap->bind("KP_Divide", FuncRequest(LFUN_SELFINSERT));
 471         //kbmap->bind("KP_Multiply", FuncRequest(LFUN_SELFINSERT));
 472         //kbmap->bind("KP_Subtract", FuncRequest(LFUN_SELFINSERT));
 473         kbmap->bind("KP_Right", FuncRequest(LFUN_RIGHT));
 474         kbmap->bind("KP_Left", FuncRequest(LFUN_LEFT));
 475         kbmap->bind("KP_Up", FuncRequest(LFUN_UP));
 476         kbmap->bind("KP_Down", FuncRequest(LFUN_DOWN));
 477         kbmap->bind("KP_Home", FuncRequest(LFUN_HOME));
 478         kbmap->bind("KP_End", FuncRequest(LFUN_END));
 479         kbmap->bind("KP_Prior", FuncRequest(LFUN_PRIOR));
 480         kbmap->bind("KP_Next", FuncRequest(LFUN_NEXT));
 481
 482         kbmap->bind("C-Tab", FuncRequest(LFUN_CELL_SPLIT));
 483         kbmap->bind("S-Tab", FuncRequest(LFUN_CELL_BACKWARD));
 484         kbmap->bind("S-ISO_Left_Tab", FuncRequest(LFUN_CELL_BACKWARD));
 485 }
 486
 487
 488 void LyX::emergencyCleanup() const
 489 {
 490         // what to do about tmpfiles is non-obvious. we would
 491         // like to delete any we find, but our lyxdir might
 492         // contain documents etc. which might be helpful on
 493         // a crash
 494
 495         bufferlist.emergencyWriteAll();
 496         if (lyxserver)
 497                 lyxserver->emergencyCleanup();
 498 }
 499
 500
 501 void LyX::deadKeyBindings(kb_keymap * kbmap)
 502 {
 503         // bindKeyings for transparent handling of deadkeys
 504         // The keysyms are gotten from XFree86 X11R6
 505         kbmap->bind("~C-~S-~M-dead_acute", FuncRequest(LFUN_ACUTE));
 506         kbmap->bind("~C-~S-~M-dead_breve", FuncRequest(LFUN_BREVE));
 507         kbmap->bind("~C-~S-~M-dead_caron", FuncRequest(LFUN_CARON));
 508         kbmap->bind("~C-~S-~M-dead_cedilla", FuncRequest(LFUN_CEDILLA));
 509         kbmap->bind("~C-~S-~M-dead_abovering", FuncRequest(LFUN_CIRCLE));
 510         kbmap->bind("~C-~S-~M-dead_circumflex", FuncRequest(LFUN_CIRCUMFLEX));
 511         kbmap->bind("~C-~S-~M-dead_abovedot", FuncRequest(LFUN_DOT));
 512         kbmap->bind("~C-~S-~M-dead_grave", FuncRequest(LFUN_GRAVE));
 513         kbmap->bind("~C-~S-~M-dead_doubleacute", FuncRequest(LFUN_HUNG_UMLAUT));
 514         kbmap->bind("~C-~S-~M-dead_macron", FuncRequest(LFUN_MACRON));
 515         // nothing with this name
 516         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 517         kbmap->bind("~C-~S-~M-dead_tilde", FuncRequest(LFUN_TILDE));
 518         kbmap->bind("~C-~S-~M-dead_diaeresis", FuncRequest(LFUN_UMLAUT));
 519         // nothing with this name either...
 520         //kbmap->bind("~C-~S-~M-dead_underbar", FuncRequest(LFUN_UNDERBAR));
 521         kbmap->bind("~C-~S-~M-dead_belowdot", FuncRequest(LFUN_UNDERDOT));
 522         kbmap->bind("~C-~S-~M-dead_tie", FuncRequest(LFUN_TIE));
 523         kbmap->bind("~C-~S-~M-dead_ogonek",FuncRequest(LFUN_OGONEK));
 524 }
 525
 526
 527 void LyX::queryUserLyXDir(bool explicit_userdir)
 528 {
 529         string const configure_script = AddName(system_lyxdir(), "configure");
 530
 531         // Does user directory exist?
 532         FileInfo fileInfo(user_lyxdir());
 533         if (fileInfo.isOK() && fileInfo.isDir()) {
 534                 first_start = false;
 535                 FileInfo script(configure_script);
 536                 FileInfo defaults(AddName(user_lyxdir(), "lyxrc.defaults"));
 537                 if (defaults.isOK() && script.isOK()
 538                     && defaults.getModificationTime() < script.getModificationTime()) {
 539                         lyxerr << _("LyX: reconfiguring user directory")
 540                                << endl;
 541                         Path p(user_lyxdir());
 542                         ::system(configure_script.c_str());
 543                         lyxerr << "LyX: " << _("Done!") << endl;
 544                 }
 545                 return;
 546         }
 547
 548         first_start = !explicit_userdir;
 549
 550         lyxerr << bformat(_("LyX: Creating directory %1$s"
 551                                   " and running configure..."), user_lyxdir()) << endl;
 552
 553         if (!createDirectory(user_lyxdir(), 0755)) {
 554                 // Failed, let's use $HOME instead.
 555                 user_lyxdir(GetEnvPath("HOME"));
 556                 lyxerr << bformat(_("Failed. Will use %1$s instead."),
 557                         user_lyxdir()) << endl;
 558                 return;
 559         }
 560
 561         // Run configure in user lyx directory
 562         Path p(user_lyxdir());
 563         ::system(configure_script.c_str());
 564         lyxerr << "LyX: " << _("Done!") << endl;
 565 }
 566
 567
 568 void LyX::readRcFile(string const & name)
 569 {
 570         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 571
 572         string const lyxrc_path = LibFileSearch(string(), name);
 573         if (!lyxrc_path.empty()) {
 574
 575                 lyxerr[Debug::INIT] << "Found " << name
 576                                     << " in " << lyxrc_path << endl;
 577
 578                 if (lyxrc.read(lyxrc_path) >= 0)
 579                         return;
 580         }
 581
 582         showFileError(name);
 583 }
 584
 585
 586 // Read the ui file `name'
 587 void LyX::readUIFile(string const & name)
 588 {
 589         enum Uitags {
 590                 ui_menuset = 1,
 591                 ui_toolbar,
 592                 ui_toolbars,
 593                 ui_include,
 594                 ui_last
 595         };
 596
 597         struct keyword_item uitags[ui_last - 1] = {
 598                 { "include", ui_include },
 599                 { "menuset", ui_menuset },
 600                 { "toolbar", ui_toolbar },
 601                 { "toolbars", ui_toolbars }
 602         };
 603
 604         // Ensure that a file is read only once (prevents include loops)
 605         static std::list<string> uifiles;
 606         std::list<string>::const_iterator it  = uifiles.begin();
 607         std::list<string>::const_iterator end = uifiles.end();
 608         it = std::find(it, end, name);
 609         if (it != end) {
 610                 lyxerr[Debug::INIT] << "UI file '" << name
 611                                     << "' has been read already. "
 612                                     << "Is this an include loop?"
 613                                     << endl;
 614                 return;
 615         }
 616
 617         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 618
 619         string const ui_path = LibFileSearch("ui", name, "ui");
 620
 621         if (ui_path.empty()) {
 622                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 623                 showFileError(name);
 624                 return;
 625         }
 626         uifiles.push_back(name);
 627
 628         lyxerr[Debug::INIT] << "Found " << name
 629                             << " in " << ui_path << endl;
 630         LyXLex lex(uitags, ui_last - 1);
 631         lex.setFile(ui_path);
 632         if (!lex.isOK()) {
 633                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 634                        << endl;
 635         }
 636
 637         if (lyxerr.debugging(Debug::PARSER))
 638                 lex.printTable(lyxerr);
 639
 640         while (lex.isOK()) {
 641                 switch (lex.lex()) {
 642                 case ui_include: {
 643                         lex.next(true);
 644                         string const file = lex.getString();
 645                         readUIFile(file);
 646                         break;
 647                 }
 648                 case ui_menuset:
 649                         menubackend.read(lex);
 650                         break;
 651
 652                 case ui_toolbar:
 653                         toolbarbackend.read(lex);
 654                         break;
 655
 656                 case ui_toolbars:
 657                         toolbarbackend.readToolbars(lex);
 658                         break;
 659
 660                 default:
 661                         if (!rtrim(lex.getString()).empty())
 662                                 lex.printError("LyX::ReadUIFile: "
 663                                                "Unknown menu tag: `$$Token'");
 664                         break;
 665                 }
 666         }
 667 }
 668
 669
 670 // Read the languages file `name'
 671 void LyX::readLanguagesFile(string const & name)
 672 {
 673         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 674
 675         string const lang_path = LibFileSearch(string(), name);
 676         if (lang_path.empty()) {
 677                 showFileError(name);
 678                 return;
 679         }
 680         languages.read(lang_path);
 681 }
 682
 683
 684 // Read the encodings file `name'
 685 void LyX::readEncodingsFile(string const & name)
 686 {
 687         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 688
 689         string const enc_path = LibFileSearch(string(), name);
 690         if (enc_path.empty()) {
 691                 showFileError(name);
 692                 return;
 693         }
 694         encodings.read(enc_path);
 695 }
 696
 697
 698 namespace {
 699
 700 bool is_gui = true;
 701 string batch;
 702
 703 /// return the the number of arguments consumed
 704 typedef boost::function<int(string const &, string const &)> cmd_helper;
 705
 706 int parse_dbg(string const & arg, string const &)
 707 {
 708         if (arg.empty()) {
 709                 lyxerr << _("List of supported debug flags:") << endl;
 710                 Debug::showTags(lyxerr);
 711                 exit(0);
 712         }
 713         lyxerr << bformat(_("Setting debug level to %1$s"), arg) << endl;
 714
 715         lyxerr.level(Debug::value(arg));
 716         Debug::showLevel(lyxerr, lyxerr.level());
 717         return 1;
 718 }
 719
 720
 721 int parse_help(string const &, string const &)
 722 {
 723         lyxerr <<
 724                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 725                   "Command line switches (case sensitive):\n"
 726                   "\t-help              summarize LyX usage\n"
 727                   "\t-userdir dir       try to set user directory to dir\n"
 728                   "\t-sysdir dir        try to set system directory to dir\n"
 729                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 730                   "\t-dbg feature[,feature]...\n"
 731                   "                  select the features to debug.\n"
 732                   "                  Type `lyx -dbg' to see the list of features\n"
 733                   "\t-x [--execute] command\n"
 734                   "                  where command is a lyx command.\n"
 735                   "\t-e [--export] fmt\n"
 736                   "                  where fmt is the export format of choice.\n"
 737                   "\t-i [--import] fmt file.xxx\n"
 738                   "                  where fmt is the import format of choice\n"
 739                   "                  and file.xxx is the file to be imported.\n"
 740                   "\t-version        summarize version and build info\n"
 741                   "Check the LyX man page for more details.") << endl;
 742         exit(0);
 743         return 0;
 744 }
 745
 746 int parse_version(string const &, string const &)
 747 {
 748         lyxerr << "LyX " << lyx_version
 749                << " of " << lyx_release_date << endl;
 750         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 751
 752         lyxerr << lyx_version_info << endl;
 753         exit(0);
 754         return 0;
 755 }
 756
 757 int parse_sysdir(string const & arg, string const &)
 758 {
 759         if (arg.empty()) {
 760                 lyxerr << _("Missing directory for -sysdir switch") << endl;
 761                 exit(1);
 762         }
 763         system_lyxdir(arg);
 764         return 1;
 765 }
 766
 767 int parse_userdir(string const & arg, string const &)
 768 {
 769         if (arg.empty()) {
 770                 lyxerr << _("Missing directory for -userdir switch") << endl;
 771                 exit(1);
 772         }
 773         user_lyxdir(arg);
 774         return 1;
 775 }
 776
 777 int parse_execute(string const & arg, string const &)
 778 {
 779         if (arg.empty()) {
 780                 lyxerr << _("Missing command string after --execute switch") << endl;
 781                 exit(1);
 782         }
 783         batch = arg;
 784         // Argh. Setting gui to false segfaults..
 785         // FIXME: when ? how ?
 786         // is_gui = false;
 787         return 1;
 788 }
 789
 790 int parse_export(string const & type, string const &)
 791 {
 792         if (type.empty()) {
 793                 lyxerr << _("Missing file type [eg latex, ps...] after "
 794                         "--export switch") << endl;
 795                 exit(1);
 796         }
 797         batch = "buffer-export " + type;
 798         is_gui = false;
 799         return 1;
 800 }
 801
 802 int parse_import(string const & type, string const & file)
 803 {
 804         if (type.empty()) {
 805                 lyxerr << _("Missing file type [eg latex, ps...] after "
 806                         "--import switch") << endl;
 807                 exit(1);
 808         }
 809         if (file.empty()) {
 810                 lyxerr << _("Missing filename for --import") << endl;
 811                 exit(1);
 812         }
 813
 814         batch = "buffer-import " + type + ' ' + file;
 815         return 2;
 816 }
 817
 818 } // namespace anon
 819
 820
 821 bool LyX::easyParse(int & argc, char * argv[])
 822 {
 823         std::map<string, cmd_helper> cmdmap;
 824
 825         cmdmap["-dbg"] = parse_dbg;
 826         cmdmap["-help"] = parse_help;
 827         cmdmap["--help"] = parse_help;
 828         cmdmap["-version"] = parse_version;
 829         cmdmap["--version"] = parse_version;
 830         cmdmap["-sysdir"] = parse_sysdir;
 831         cmdmap["-userdir"] = parse_userdir;
 832         cmdmap["-x"] = parse_execute;
 833         cmdmap["--execute"] = parse_execute;
 834         cmdmap["-e"] = parse_export;
 835         cmdmap["--export"] = parse_export;
 836         cmdmap["-i"] = parse_import;
 837         cmdmap["--import"] = parse_import;
 838
 839         for (int i = 1; i < argc; ++i) {
 840                 std::map<string, cmd_helper>::const_iterator it
 841                         = cmdmap.find(argv[i]);
 842
 843                 // don't complain if not found - may be parsed later
 844                 if (it == cmdmap.end())
 845                         continue;
 846
 847                 string arg((i + 1 < argc) ? argv[i + 1] : "");
 848                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
 849
 850                 int const remove = 1 + it->second(arg, arg2);
 851
 852                 // Now, remove used arguments by shifting
 853                 // the following ones remove places down.
 854                 argc -= remove;
 855                 for (int j = i; j < argc; ++j)
 856                         argv[j] = argv[j + remove];
 857                 --i;
 858         }
 859
 860         batch_command = batch;
 861
 862         return is_gui;
 863 }