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/environment.h"
  49 #include "support/filetools.h"
  50 #include "support/lyxlib.h"
  51 #include "support/os.h"
  52 #include "support/package.h"
  53 #include "support/path.h"
  54
  55 #include <boost/bind.hpp>
  56 #include <boost/filesystem/operations.hpp>
  57
  58 #include <iostream>
  59 #include <csignal>
  60
  61 using lyx::support::AddName;
  62 using lyx::support::AddPath;
  63 using lyx::support::bformat;
  64 using lyx::support::createDirectory;
  65 using lyx::support::createLyXTmpDir;
  66 using lyx::support::FileSearch;
  67 using lyx::support::getEnv;
  68 using lyx::support::i18nLibFileSearch;
  69 using lyx::support::LibFileSearch;
  70 using lyx::support::package;
  71 using lyx::support::Path;
  72 using lyx::support::prependEnvPath;
  73 using lyx::support::QuoteName;
  74 using lyx::support::rtrim;
  75
  76 namespace os = lyx::support::os;
  77 namespace fs = boost::filesystem;
  78
  79 using std::endl;
  80 using std::string;
  81 using std::vector;
  82
  83 #ifndef CXX_GLOBAL_CSTD
  84 using std::exit;
  85 using std::signal;
  86 using std::system;
  87 #endif
  88
  89
  90 extern void QuitLyX(bool);
  91
  92 extern LyXServer * lyxserver;
  93
  94 // This is the global bufferlist object
  95 BufferList bufferlist;
  96
  97 // convenient to have it here.
  98 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  99
 100 namespace {
 101
 102 // Filled with the command line arguments "foo" of "-sysdir foo" or
 103 // "-userdir foo".
 104 string cl_system_support;
 105 string cl_user_support;
 106
 107
 108 void showFileError(string const & error)
 109 {
 110         Alert::warning(_("Could not read configuration file"),
 111                    bformat(_("Error while reading the configuration file\n%1$s.\n"
 112                      "Please check your installation."), error));
 113         exit(EXIT_FAILURE);
 114 }
 115
 116
 117 void reconfigureUserLyXDir()
 118 {
 119         string const configure_script =
 120                 AddName(package().system_support(), "configure");
 121         string const configure_command =
 122                 "sh " + QuoteName(configure_script);
 123
 124         lyxerr << _("LyX: reconfiguring user directory") << endl;
 125         Path p(package().user_support());
 126         ::system(configure_command.c_str());
 127         lyxerr << "LyX: " << _("Done!") << endl;
 128 }
 129
 130 } // namespace anon
 131
 132
 133 boost::scoped_ptr<LyX> LyX::singleton_;
 134
 135 void LyX::exec(int & argc, char * argv[])
 136 {
 137         BOOST_ASSERT(!singleton_.get());
 138         // We must return from this before launching the gui so that
 139         // other parts of the code can access singleton_ through
 140         // LyX::ref and LyX::cref.
 141         singleton_.reset(new LyX);
 142         // Start the real execution loop.
 143         singleton_->priv_exec(argc, argv);
 144 }
 145
 146
 147 LyX & LyX::ref()
 148 {
 149         BOOST_ASSERT(singleton_.get());
 150         return *singleton_.get();
 151 }
 152
 153
 154 LyX const & LyX::cref()
 155 {
 156         BOOST_ASSERT(singleton_.get());
 157         return *singleton_.get();
 158 }
 159
 160
 161 LyX::LyX()
 162         : first_start(false)
 163 {}
 164
 165
 166 LastFiles & LyX::lastfiles()
 167 {
 168         BOOST_ASSERT(lastfiles_.get());
 169         return *lastfiles_.get();
 170 }
 171
 172
 173 LastFiles const & LyX::lastfiles() const
 174 {
 175         BOOST_ASSERT(lastfiles_.get());
 176         return *lastfiles_.get();
 177 }
 178
 179
 180 void LyX::addLyXView(boost::shared_ptr<LyXView> const & lyxview)
 181 {
 182         views_.push_back(lyxview);
 183 }
 184
 185
 186 Buffer const * const LyX::updateInset(InsetBase const * inset) const
 187 {
 188         if (!inset)
 189                 return 0;
 190
 191         Buffer const * buffer_ptr = 0;
 192         ViewList::const_iterator it = views_.begin();
 193         ViewList::const_iterator const end = views_.end();
 194         for (; it != end; ++it) {
 195                 Buffer const * ptr = (*it)->updateInset(inset);
 196                 if (ptr)
 197                         buffer_ptr = ptr;
 198         }
 199         return buffer_ptr;
 200 }
 201
 202
 203 void LyX::priv_exec(int & argc, char * argv[])
 204 {
 205         // Here we need to parse the command line. At least
 206         // we need to parse for "-dbg" and "-help"
 207         bool const want_gui = easyParse(argc, argv);
 208
 209         lyx::support::init_package(argv[0], cl_system_support, cl_user_support,
 210                                    lyx::support::top_build_dir_is_one_level_up);
 211
 212         if (want_gui)
 213                 lyx_gui::parse_init(argc, argv);
 214
 215         // check for any spurious extra arguments
 216         // other than documents
 217         for (int argi = 1; argi < argc ; ++argi) {
 218                 if (argv[argi][0] == '-') {
 219                         lyxerr << bformat(_("Wrong command line option `%1$s'. Exiting."),
 220                                 argv[argi]) << endl;
 221                         exit(1);
 222                 }
 223         }
 224
 225         // Initialization of LyX (reads lyxrc and more)
 226         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 227         init(want_gui);
 228         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 229
 230         if (want_gui)
 231                 lyx_gui::parse_lyxrc();
 232
 233         vector<string> files;
 234
 235         for (int argi = argc - 1; argi >= 1; --argi)
 236                 files.push_back(os::internal_path(argv[argi]));
 237
 238         if (first_start)
 239                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 240
 241         // Execute batch commands if available
 242         if (!batch_command.empty()) {
 243
 244                 lyxerr[Debug::INIT] << "About to handle -x '"
 245                        << batch_command << '\'' << endl;
 246
 247                 Buffer * last_loaded = 0;
 248
 249                 vector<string>::const_iterator it = files.begin();
 250                 vector<string>::const_iterator end = files.end();
 251
 252                 for (; it != end; ++it) {
 253                         // get absolute path of file and add ".lyx" to
 254                         // the filename if necessary
 255                         string s = FileSearch(string(), *it, "lyx");
 256                         if (s.empty()) {
 257                                 last_loaded = newFile(*it, string(), true);
 258                         } else {
 259                                 Buffer * buf = bufferlist.newBuffer(s, false);
 260                                 buf->error.connect(boost::bind(&LyX::printError, this, _1));
 261                                 if (loadLyXFile(buf, s))
 262                                         last_loaded = buf;
 263                                 else
 264                                         bufferlist.release(buf);
 265                         }
 266                 }
 267
 268                 // try to dispatch to last loaded buffer first
 269                 if (last_loaded) {
 270                         bool success = false;
 271                         if (last_loaded->dispatch(batch_command, &success)) {
 272                                 QuitLyX(false);
 273                                 exit(!success);
 274                         }
 275                 }
 276                 files.clear(); // the files are already loaded
 277         }
 278
 279         if (want_gui)
 280                 lyx_gui::start(batch_command, files);
 281         else {
 282                 // Something went wrong above
 283                 QuitLyX(false);
 284                 exit(EXIT_FAILURE);
 285         }
 286 }
 287
 288
 289 /*
 290 Signals and Windows
 291 ===================
 292 The SIGHUP signal does not exist on Windows and does not need to be handled.
 293
 294 Windows handles SIGFPE and SIGSEGV signals as expected.
 295
 296 Cntl+C interrupts (mapped to SIGINT by Windows' POSIX compatability layer)
 297 cause a new thread to be spawned. This may well result in unexpected
 298 behaviour by the single-threaded LyX.
 299
 300 SIGTERM signals will come only from another process actually sending
 301 that signal using 'raise' in Windows' POSIX compatability layer. It will
 302 not come from the general "terminate process" methods that everyone
 303 actually uses (and which can't be trapped). Killing an app 'politely' on
 304 Windows involves first sending a WM_CLOSE message, something that is
 305 caught already by the Qt frontend.
 306
 307 For more information see:
 308
 309 http://aspn.activestate.com/ASPN/Mail/Message/ActiveTcl/2034055
 310 ...signals are mostly useless on Windows for a variety of reasons that are
 311 Windows specific...
 312
 313 'UNIX Application Migration Guide, Chapter 9'
 314 http://msdn.microsoft.com/library/en-us/dnucmg/html/UCMGch09.asp
 315
 316 'How To Terminate an Application "Cleanly" in Win32'
 317 http://support.microsoft.com/default.aspx?scid=kb;en-us;178893
 318 */
 319 extern "C" {
 320
 321 static void error_handler(int err_sig)
 322 {
 323         // Throw away any signals other than the first one received.
 324         static sig_atomic_t handling_error = false;
 325         if (handling_error)
 326                 return;
 327         handling_error = true;
 328
 329         // We have received a signal indicating a fatal error, so
 330         // try and save the data ASAP.
 331         LyX::cref().emergencyCleanup();
 332
 333         // These lyxerr calls may or may not work:
 334
 335         // Signals are asynchronous, so the main program may be in a very
 336         // fragile state when a signal is processed and thus while a signal
 337         // handler function executes.
 338         // In general, therefore, we should avoid performing any
 339         // I/O operations or calling most library and system functions from
 340         // signal handlers.
 341
 342         // This shouldn't matter here, however, as we've already invoked
 343         // emergencyCleanup.
 344         switch (err_sig) {
 345 #ifdef SIGHUP
 346         case SIGHUP:
 347                 lyxerr << "\nlyx: SIGHUP signal caught\nBye." << endl;
 348                 break;
 349 #endif
 350         case SIGFPE:
 351                 lyxerr << "\nlyx: SIGFPE signal caught\nBye." << endl;
 352                 break;
 353         case SIGSEGV:
 354                 lyxerr << "\nlyx: SIGSEGV signal caught\n"
 355                           "Sorry, you have found a bug in LyX. "
 356                           "Please read the bug-reporting instructions "
 357                           "in Help->Introduction and send us a bug report, "
 358                           "if necessary. Thanks !\nBye." << endl;
 359                 break;
 360         case SIGINT:
 361         case SIGTERM:
 362                 // no comments
 363                 break;
 364         }
 365
 366         // Deinstall the signal handlers
 367 #ifdef SIGHUP
 368         signal(SIGHUP, SIG_DFL);
 369 #endif
 370         signal(SIGINT, SIG_DFL);
 371         signal(SIGFPE, SIG_DFL);
 372         signal(SIGSEGV, SIG_DFL);
 373         signal(SIGTERM, SIG_DFL);
 374
 375 #ifdef SIGHUP
 376         if (err_sig == SIGSEGV ||
 377             (err_sig != SIGHUP && !getEnv("LYXDEBUG").empty()))
 378 #else
 379         if (err_sig == SIGSEGV || !getEnv("LYXDEBUG").empty())
 380 #endif
 381                 lyx::support::abort();
 382         exit(0);
 383 }
 384
 385 }
 386
 387
 388 void LyX::printError(ErrorItem const & ei)
 389 {
 390         std::cerr << _("LyX: ") << ei.error
 391                   << ':' << ei.description << std::endl;
 392
 393 }
 394
 395
 396 void LyX::init(bool gui)
 397 {
 398 #ifdef SIGHUP
 399         signal(SIGHUP, error_handler);
 400 #endif
 401         signal(SIGFPE, error_handler);
 402         signal(SIGSEGV, error_handler);
 403         signal(SIGINT, error_handler);
 404         signal(SIGTERM, error_handler);
 405         // SIGPIPE can be safely ignored.
 406
 407         // Check that user LyX directory is ok. We don't do that if
 408         // running in batch mode.
 409         bool reconfigure = false;
 410         if (gui) {
 411                 reconfigure =
 412                         queryUserLyXDir(package().explicit_user_support());
 413         } else {
 414                 first_start = false;
 415         }
 416
 417         // Disable gui when easyparse says so
 418         lyx_gui::use_gui = gui;
 419
 420         lyxrc.tempdir_path = package().temp_dir();
 421         lyxrc.document_path = package().document_dir();
 422
 423         if (lyxrc.template_path.empty()) {
 424                 lyxrc.template_path = AddPath(package().system_support(),
 425                                               "templates");
 426         }
 427
 428         if (lyxrc.lastfiles.empty()) {
 429                 lyxrc.lastfiles = AddName(package().user_support(), "lastfiles");
 430         }
 431
 432         if (lyxrc.roman_font_name.empty())
 433                 lyxrc.roman_font_name = lyx_gui::roman_font_name();
 434         if (lyxrc.sans_font_name.empty())
 435                 lyxrc.sans_font_name = lyx_gui::sans_font_name();
 436         if (lyxrc.typewriter_font_name.empty())
 437                 lyxrc.typewriter_font_name = lyx_gui::typewriter_font_name();
 438
 439         //
 440         // Read configuration files
 441         //
 442
 443         readRcFile("lyxrc.defaults");
 444         system_lyxrc = lyxrc;
 445         system_formats = formats;
 446         system_converters = converters;
 447         system_movers = movers;
 448         system_lcolor = lcolor;
 449
 450         string prefsfile = "preferences";
 451         // back compatibility to lyxs < 1.1.6
 452         if (LibFileSearch(string(), prefsfile).empty())
 453                 prefsfile = "lyxrc";
 454         if (!LibFileSearch(string(), prefsfile).empty())
 455                 readRcFile(prefsfile);
 456
 457         readEncodingsFile("encodings");
 458         readLanguagesFile("languages");
 459
 460         // Load the layouts
 461         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 462         LyXSetStyle();
 463
 464         if (gui) {
 465                 // Set up bindings
 466                 toplevel_keymap.reset(new kb_keymap);
 467                 defaultKeyBindings(toplevel_keymap.get());
 468                 toplevel_keymap->read(lyxrc.bind_file);
 469
 470                 // Read menus
 471                 readUIFile(lyxrc.ui_file);
 472         }
 473
 474         if (lyxerr.debugging(Debug::LYXRC))
 475                 lyxrc.print();
 476
 477         os::cygwin_path_fix(lyxrc.cygwin_path_fix);
 478         if (!lyxrc.path_prefix.empty())
 479                 prependEnvPath("PATH", lyxrc.path_prefix);
 480
 481 #if !defined (USE_POSIX_PACKAGING)
 482         // Add the directory containing the LyX executable to the path
 483         // so that LyX can find things like tex2lyx.
 484         if (package().build_support().empty())
 485                 prependEnvPath("PATH", package().binary_dir());
 486 #endif
 487
 488         // Having reset the PATH we're now in a position to run configure
 489         // if necessary.
 490         if (reconfigure)
 491                 reconfigureUserLyXDir();
 492
 493         if (fs::exists(lyxrc.document_path) &&
 494             fs::is_directory(lyxrc.document_path))
 495                 package().document_dir() = lyxrc.document_path;
 496
 497         package().temp_dir() = createLyXTmpDir(lyxrc.tempdir_path);
 498         if (package().temp_dir().empty()) {
 499                 Alert::error(_("Could not create temporary directory"),
 500                              bformat(_("Could not create a temporary directory in\n"
 501                                        "%1$s. Make sure that this\n"
 502                                        "path exists and is writable and try again."),
 503                                      lyxrc.tempdir_path));
 504                 // createLyXTmpDir() tries sufficiently hard to create a
 505                 // usable temp dir, so the probability to come here is
 506                 // close to zero. We therefore don't try to overcome this
 507                 // problem with e.g. asking the user for a new path and
 508                 // trying again but simply exit.
 509                 exit(EXIT_FAILURE);
 510         }
 511
 512         if (lyxerr.debugging(Debug::INIT)) {
 513                 lyxerr << "LyX tmp dir: `" << package().temp_dir() << '\'' << endl;
 514         }
 515
 516         lyxerr[Debug::INIT] << "Reading lastfiles `"
 517                             << lyxrc.lastfiles << "'..." << endl;
 518         lastfiles_.reset(new LastFiles(lyxrc.lastfiles,
 519                                        lyxrc.check_lastfiles,
 520                                        lyxrc.num_lastfiles));
 521 }
 522
 523
 524 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 525 {
 526         kbmap->bind("Right", FuncRequest(LFUN_RIGHT));
 527         kbmap->bind("Left", FuncRequest(LFUN_LEFT));
 528         kbmap->bind("Up", FuncRequest(LFUN_UP));
 529         kbmap->bind("Down", FuncRequest(LFUN_DOWN));
 530
 531         kbmap->bind("Tab", FuncRequest(LFUN_CELL_FORWARD));
 532         kbmap->bind("C-Tab", FuncRequest(LFUN_CELL_SPLIT));
 533         kbmap->bind("~S-ISO_Left_Tab", FuncRequest(LFUN_CELL_BACKWARD));
 534         kbmap->bind("~S-BackTab", FuncRequest(LFUN_CELL_BACKWARD));
 535
 536         kbmap->bind("Home", FuncRequest(LFUN_HOME));
 537         kbmap->bind("End", FuncRequest(LFUN_END));
 538         kbmap->bind("Prior", FuncRequest(LFUN_PRIOR));
 539         kbmap->bind("Next", FuncRequest(LFUN_NEXT));
 540
 541         kbmap->bind("Return", FuncRequest(LFUN_BREAKPARAGRAPH));
 542         //kbmap->bind("~C-~S-~M-nobreakspace", FuncRequest(LFUN_PROTECTEDSPACE));
 543
 544         kbmap->bind("Delete", FuncRequest(LFUN_DELETE));
 545         kbmap->bind("BackSpace", FuncRequest(LFUN_BACKSPACE));
 546
 547         // kbmap->bindings to enable the use of the numeric keypad
 548         // e.g. Num Lock set
 549         //kbmap->bind("KP_0", FuncRequest(LFUN_SELFINSERT));
 550         //kbmap->bind("KP_Decimal", FuncRequest(LFUN_SELFINSERT));
 551         kbmap->bind("KP_Enter", FuncRequest(LFUN_BREAKPARAGRAPH));
 552         //kbmap->bind("KP_1", FuncRequest(LFUN_SELFINSERT));
 553         //kbmap->bind("KP_2", FuncRequest(LFUN_SELFINSERT));
 554         //kbmap->bind("KP_3", FuncRequest(LFUN_SELFINSERT));
 555         //kbmap->bind("KP_4", FuncRequest(LFUN_SELFINSERT));
 556         //kbmap->bind("KP_5", FuncRequest(LFUN_SELFINSERT));
 557         //kbmap->bind("KP_6", FuncRequest(LFUN_SELFINSERT));
 558         //kbmap->bind("KP_Add", FuncRequest(LFUN_SELFINSERT));
 559         //kbmap->bind("KP_7", FuncRequest(LFUN_SELFINSERT));
 560         //kbmap->bind("KP_8", FuncRequest(LFUN_SELFINSERT));
 561         //kbmap->bind("KP_9", FuncRequest(LFUN_SELFINSERT));
 562         //kbmap->bind("KP_Divide", FuncRequest(LFUN_SELFINSERT));
 563         //kbmap->bind("KP_Multiply", FuncRequest(LFUN_SELFINSERT));
 564         //kbmap->bind("KP_Subtract", FuncRequest(LFUN_SELFINSERT));
 565         kbmap->bind("KP_Right", FuncRequest(LFUN_RIGHT));
 566         kbmap->bind("KP_Left", FuncRequest(LFUN_LEFT));
 567         kbmap->bind("KP_Up", FuncRequest(LFUN_UP));
 568         kbmap->bind("KP_Down", FuncRequest(LFUN_DOWN));
 569         kbmap->bind("KP_Home", FuncRequest(LFUN_HOME));
 570         kbmap->bind("KP_End", FuncRequest(LFUN_END));
 571         kbmap->bind("KP_Prior", FuncRequest(LFUN_PRIOR));
 572         kbmap->bind("KP_Next", FuncRequest(LFUN_NEXT));
 573 }
 574
 575
 576 void LyX::emergencyCleanup() const
 577 {
 578         // what to do about tmpfiles is non-obvious. we would
 579         // like to delete any we find, but our lyxdir might
 580         // contain documents etc. which might be helpful on
 581         // a crash
 582
 583         bufferlist.emergencyWriteAll();
 584         if (lyxserver)
 585                 lyxserver->emergencyCleanup();
 586 }
 587
 588
 589 void LyX::deadKeyBindings(kb_keymap * kbmap)
 590 {
 591         // bindKeyings for transparent handling of deadkeys
 592         // The keysyms are gotten from XFree86 X11R6
 593         kbmap->bind("~C-~S-~M-dead_acute", FuncRequest(LFUN_ACUTE));
 594         kbmap->bind("~C-~S-~M-dead_breve", FuncRequest(LFUN_BREVE));
 595         kbmap->bind("~C-~S-~M-dead_caron", FuncRequest(LFUN_CARON));
 596         kbmap->bind("~C-~S-~M-dead_cedilla", FuncRequest(LFUN_CEDILLA));
 597         kbmap->bind("~C-~S-~M-dead_abovering", FuncRequest(LFUN_CIRCLE));
 598         kbmap->bind("~C-~S-~M-dead_circumflex", FuncRequest(LFUN_CIRCUMFLEX));
 599         kbmap->bind("~C-~S-~M-dead_abovedot", FuncRequest(LFUN_DOT));
 600         kbmap->bind("~C-~S-~M-dead_grave", FuncRequest(LFUN_GRAVE));
 601         kbmap->bind("~C-~S-~M-dead_doubleacute", FuncRequest(LFUN_HUNG_UMLAUT));
 602         kbmap->bind("~C-~S-~M-dead_macron", FuncRequest(LFUN_MACRON));
 603         // nothing with this name
 604         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 605         kbmap->bind("~C-~S-~M-dead_tilde", FuncRequest(LFUN_TILDE));
 606         kbmap->bind("~C-~S-~M-dead_diaeresis", FuncRequest(LFUN_UMLAUT));
 607         // nothing with this name either...
 608         //kbmap->bind("~C-~S-~M-dead_underbar", FuncRequest(LFUN_UNDERBAR));
 609         kbmap->bind("~C-~S-~M-dead_belowdot", FuncRequest(LFUN_UNDERDOT));
 610         kbmap->bind("~C-~S-~M-dead_tie", FuncRequest(LFUN_TIE));
 611         kbmap->bind("~C-~S-~M-dead_ogonek",FuncRequest(LFUN_OGONEK));
 612 }
 613
 614
 615 bool LyX::queryUserLyXDir(bool explicit_userdir)
 616 {
 617         bool reconfigure = false;
 618
 619         // Does user directory exist?
 620         if (fs::exists(package().user_support()) &&
 621             fs::is_directory(package().user_support())) {
 622                 first_start = false;
 623                 string const configure_script =
 624                         AddName(package().system_support(), "configure");
 625                 string const userDefaults =
 626                         AddName(package().user_support(), "lyxrc.defaults");
 627                 if (fs::exists(configure_script) &&
 628                     fs::exists(userDefaults) &&
 629                     fs::last_write_time(configure_script)
 630                     > fs::last_write_time(userDefaults)) {
 631                         reconfigure = true;
 632                 }
 633                 return reconfigure;
 634         }
 635
 636         first_start = !explicit_userdir;
 637
 638         // If the user specified explicitly a directory, ask whether
 639         // to create it. If the user says "no", then exit.
 640         if (explicit_userdir &&
 641             Alert::prompt(
 642                     _("Missing user LyX directory"),
 643                     bformat(_("You have specified a non-existent user "
 644                               "LyX directory, %1$s.\n"
 645                               "It is needed to keep your own configuration."),
 646                             package().user_support()),
 647                     1, 0,
 648                     _("&Create directory."),
 649                     _("&Exit LyX."))) {
 650                 lyxerr << _("No user LyX directory. Exiting.") << endl;
 651                 exit(1);
 652         }
 653
 654         lyxerr << bformat(_("LyX: Creating directory %1$s"),
 655                           package().user_support())
 656                << endl;
 657         reconfigure = true;
 658
 659         if (!createDirectory(package().user_support(), 0755)) {
 660                 // Failed, so let's exit.
 661                 lyxerr << _("Failed to create directory. Exiting.")
 662                        << endl;
 663                 exit(1);
 664         }
 665
 666         return reconfigure;
 667 }
 668
 669
 670 void LyX::readRcFile(string const & name)
 671 {
 672         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 673
 674         string const lyxrc_path = LibFileSearch(string(), name);
 675         if (!lyxrc_path.empty()) {
 676
 677                 lyxerr[Debug::INIT] << "Found " << name
 678                                     << " in " << lyxrc_path << endl;
 679
 680                 if (lyxrc.read(lyxrc_path) >= 0)
 681                         return;
 682         }
 683
 684         showFileError(name);
 685 }
 686
 687
 688 // Read the ui file `name'
 689 void LyX::readUIFile(string const & name)
 690 {
 691         enum Uitags {
 692                 ui_menuset = 1,
 693                 ui_toolbar,
 694                 ui_toolbars,
 695                 ui_include,
 696                 ui_last
 697         };
 698
 699         struct keyword_item uitags[ui_last - 1] = {
 700                 { "include", ui_include },
 701                 { "menuset", ui_menuset },
 702                 { "toolbar", ui_toolbar },
 703                 { "toolbars", ui_toolbars }
 704         };
 705
 706         // Ensure that a file is read only once (prevents include loops)
 707         static std::list<string> uifiles;
 708         std::list<string>::const_iterator it  = uifiles.begin();
 709         std::list<string>::const_iterator end = uifiles.end();
 710         it = std::find(it, end, name);
 711         if (it != end) {
 712                 lyxerr[Debug::INIT] << "UI file '" << name
 713                                     << "' has been read already. "
 714                                     << "Is this an include loop?"
 715                                     << endl;
 716                 return;
 717         }
 718
 719         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 720
 721         string const ui_path = LibFileSearch("ui", name, "ui");
 722
 723         if (ui_path.empty()) {
 724                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 725                 showFileError(name);
 726                 return;
 727         }
 728         uifiles.push_back(name);
 729
 730         lyxerr[Debug::INIT] << "Found " << name
 731                             << " in " << ui_path << endl;
 732         LyXLex lex(uitags, ui_last - 1);
 733         lex.setFile(ui_path);
 734         if (!lex.isOK()) {
 735                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 736                        << endl;
 737         }
 738
 739         if (lyxerr.debugging(Debug::PARSER))
 740                 lex.printTable(lyxerr);
 741
 742         while (lex.isOK()) {
 743                 switch (lex.lex()) {
 744                 case ui_include: {
 745                         lex.next(true);
 746                         string const file = lex.getString();
 747                         readUIFile(file);
 748                         break;
 749                 }
 750                 case ui_menuset:
 751                         menubackend.read(lex);
 752                         break;
 753
 754                 case ui_toolbar:
 755                         toolbarbackend.read(lex);
 756                         break;
 757
 758                 case ui_toolbars:
 759                         toolbarbackend.readToolbars(lex);
 760                         break;
 761
 762                 default:
 763                         if (!rtrim(lex.getString()).empty())
 764                                 lex.printError("LyX::ReadUIFile: "
 765                                                "Unknown menu tag: `$$Token'");
 766                         break;
 767                 }
 768         }
 769 }
 770
 771
 772 // Read the languages file `name'
 773 void LyX::readLanguagesFile(string const & name)
 774 {
 775         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 776
 777         string const lang_path = LibFileSearch(string(), name);
 778         if (lang_path.empty()) {
 779                 showFileError(name);
 780                 return;
 781         }
 782         languages.read(lang_path);
 783 }
 784
 785
 786 // Read the encodings file `name'
 787 void LyX::readEncodingsFile(string const & name)
 788 {
 789         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 790
 791         string const enc_path = LibFileSearch(string(), name);
 792         if (enc_path.empty()) {
 793                 showFileError(name);
 794                 return;
 795         }
 796         encodings.read(enc_path);
 797 }
 798
 799
 800 namespace {
 801
 802 bool is_gui = true;
 803 string batch;
 804
 805 /// return the the number of arguments consumed
 806 typedef boost::function<int(string const &, string const &)> cmd_helper;
 807
 808 int parse_dbg(string const & arg, string const &)
 809 {
 810         if (arg.empty()) {
 811                 lyxerr << _("List of supported debug flags:") << endl;
 812                 Debug::showTags(lyxerr);
 813                 exit(0);
 814         }
 815         lyxerr << bformat(_("Setting debug level to %1$s"), arg) << endl;
 816
 817         lyxerr.level(Debug::value(arg));
 818         Debug::showLevel(lyxerr, lyxerr.level());
 819         return 1;
 820 }
 821
 822
 823 int parse_help(string const &, string const &)
 824 {
 825         lyxerr <<
 826                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 827                   "Command line switches (case sensitive):\n"
 828                   "\t-help              summarize LyX usage\n"
 829                   "\t-userdir dir       try to set user directory to dir\n"
 830                   "\t-sysdir dir        try to set system directory to dir\n"
 831                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 832                   "\t-dbg feature[,feature]...\n"
 833                   "                  select the features to debug.\n"
 834                   "                  Type `lyx -dbg' to see the list of features\n"
 835                   "\t-x [--execute] command\n"
 836                   "                  where command is a lyx command.\n"
 837                   "\t-e [--export] fmt\n"
 838                   "                  where fmt is the export format of choice.\n"
 839                   "\t-i [--import] fmt file.xxx\n"
 840                   "                  where fmt is the import format of choice\n"
 841                   "                  and file.xxx is the file to be imported.\n"
 842                   "\t-version        summarize version and build info\n"
 843                   "Check the LyX man page for more details.") << endl;
 844         exit(0);
 845         return 0;
 846 }
 847
 848 int parse_version(string const &, string const &)
 849 {
 850         lyxerr << "LyX " << lyx_version
 851                << " of " << lyx_release_date << endl;
 852         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 853
 854         lyxerr << lyx_version_info << endl;
 855         exit(0);
 856         return 0;
 857 }
 858
 859 int parse_sysdir(string const & arg, string const &)
 860 {
 861         if (arg.empty()) {
 862                 lyxerr << _("Missing directory for -sysdir switch") << endl;
 863                 exit(1);
 864         }
 865         cl_system_support = arg;
 866         return 1;
 867 }
 868
 869 int parse_userdir(string const & arg, string const &)
 870 {
 871         if (arg.empty()) {
 872                 lyxerr << _("Missing directory for -userdir switch") << endl;
 873                 exit(1);
 874         }
 875         cl_user_support = arg;
 876         return 1;
 877 }
 878
 879 int parse_execute(string const & arg, string const &)
 880 {
 881         if (arg.empty()) {
 882                 lyxerr << _("Missing command string after --execute switch") << endl;
 883                 exit(1);
 884         }
 885         batch = arg;
 886         return 1;
 887 }
 888
 889 int parse_export(string const & type, string const &)
 890 {
 891         if (type.empty()) {
 892                 lyxerr << _("Missing file type [eg latex, ps...] after "
 893                         "--export switch") << endl;
 894                 exit(1);
 895         }
 896         batch = "buffer-export " + type;
 897         is_gui = false;
 898         return 1;
 899 }
 900
 901 int parse_import(string const & type, string const & file)
 902 {
 903         if (type.empty()) {
 904                 lyxerr << _("Missing file type [eg latex, ps...] after "
 905                         "--import switch") << endl;
 906                 exit(1);
 907         }
 908         if (file.empty()) {
 909                 lyxerr << _("Missing filename for --import") << endl;
 910                 exit(1);
 911         }
 912
 913         batch = "buffer-import " + type + ' ' + file;
 914         return 2;
 915 }
 916
 917 } // namespace anon
 918
 919
 920 bool LyX::easyParse(int & argc, char * argv[])
 921 {
 922         std::map<string, cmd_helper> cmdmap;
 923
 924         cmdmap["-dbg"] = parse_dbg;
 925         cmdmap["-help"] = parse_help;
 926         cmdmap["--help"] = parse_help;
 927         cmdmap["-version"] = parse_version;
 928         cmdmap["--version"] = parse_version;
 929         cmdmap["-sysdir"] = parse_sysdir;
 930         cmdmap["-userdir"] = parse_userdir;
 931         cmdmap["-x"] = parse_execute;
 932         cmdmap["--execute"] = parse_execute;
 933         cmdmap["-e"] = parse_export;
 934         cmdmap["--export"] = parse_export;
 935         cmdmap["-i"] = parse_import;
 936         cmdmap["--import"] = parse_import;
 937
 938         for (int i = 1; i < argc; ++i) {
 939                 std::map<string, cmd_helper>::const_iterator it
 940                         = cmdmap.find(argv[i]);
 941
 942                 // don't complain if not found - may be parsed later
 943                 if (it == cmdmap.end())
 944                         continue;
 945
 946                 string arg((i + 1 < argc) ? argv[i + 1] : "");
 947                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
 948
 949                 int const remove = 1 + it->second(arg, arg2);
 950
 951                 // Now, remove used arguments by shifting
 952                 // the following ones remove places down.
 953                 argc -= remove;
 954                 for (int j = i; j < argc; ++j)
 955                         argv[j] = argv[j + remove];
 956                 --i;
 957         }
 958
 959         batch_command = batch;
 960
 961         return is_gui;
 962 }