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 "session.h"
  32 #include "LColor.h"
  33 #include "lyx_cb.h"
  34 #include "lyxfunc.h"
  35 #include "lyxlex.h"
  36 #include "lyxrc.h"
  37 #include "lyxtextclasslist.h"
  38 #include "lyxserver.h"
  39 #include "MenuBackend.h"
  40 #include "mover.h"
  41 #include "ToolbarBackend.h"
  42
  43 #include "mathed/math_inset.h"
  44
  45 #include "frontends/Alert.h"
  46 #include "frontends/lyx_gui.h"
  47 #include "frontends/LyXView.h"
  48
  49 #include "support/environment.h"
  50 #include "support/filetools.h"
  51 #include "support/lyxlib.h"
  52 #include "support/os.h"
  53 #include "support/package.h"
  54 #include "support/path.h"
  55
  56 #include <boost/bind.hpp>
  57 #include <boost/filesystem/operations.hpp>
  58
  59 #include <iostream>
  60 #include <csignal>
  61
  62 using lyx::support::addName;
  63 using lyx::support::addPath;
  64 using lyx::support::bformat;
  65 using lyx::support::createDirectory;
  66 using lyx::support::createLyXTmpDir;
  67 using lyx::support::fileSearch;
  68 using lyx::support::getEnv;
  69 using lyx::support::i18nLibFileSearch;
  70 using lyx::support::libFileSearch;
  71 using lyx::support::package;
  72 using lyx::support::Path;
  73 using lyx::support::prependEnvPath;
  74 using lyx::support::quoteName;
  75 using lyx::support::rtrim;
  76
  77 namespace os = lyx::support::os;
  78 namespace fs = boost::filesystem;
  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 LyXServer * lyxserver;
  92
  93 // This is the global bufferlist object
  94 BufferList bufferlist;
  95
  96 // convenient to have it here.
  97 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  98
  99 namespace {
 100
 101 // Filled with the command line arguments "foo" of "-sysdir foo" or
 102 // "-userdir foo".
 103 string cl_system_support;
 104 string cl_user_support;
 105
 106
 107 void showFileError(string const & error)
 108 {
 109         Alert::warning(_("Could not read configuration file"),
 110                    bformat(_("Error while reading the configuration file\n%1$s.\n"
 111                      "Please check your installation."), error));
 112         exit(EXIT_FAILURE);
 113 }
 114
 115
 116 void reconfigureUserLyXDir()
 117 {
 118         string const configure_command = package().configure_command();
 119
 120         lyxerr << _("LyX: reconfiguring user directory") << endl;
 121         Path p(package().user_support());
 122         ::system(configure_command.c_str());
 123         lyxerr << "LyX: " << _("Done!") << endl;
 124 }
 125
 126 } // namespace anon
 127
 128
 129 boost::scoped_ptr<LyX> LyX::singleton_;
 130
 131 void LyX::exec(int & argc, char * argv[])
 132 {
 133         BOOST_ASSERT(!singleton_.get());
 134         // We must return from this before launching the gui so that
 135         // other parts of the code can access singleton_ through
 136         // LyX::ref and LyX::cref.
 137         singleton_.reset(new LyX);
 138         // Start the real execution loop.
 139         singleton_->priv_exec(argc, argv);
 140 }
 141
 142
 143 LyX & LyX::ref()
 144 {
 145         BOOST_ASSERT(singleton_.get());
 146         return *singleton_.get();
 147 }
 148
 149
 150 LyX const & LyX::cref()
 151 {
 152         BOOST_ASSERT(singleton_.get());
 153         return *singleton_.get();
 154 }
 155
 156
 157 LyX::LyX()
 158         : first_start(false)
 159 {}
 160
 161
 162 lyx::Session & LyX::session()
 163 {
 164         BOOST_ASSERT(session_.get());
 165         return *session_.get();
 166 }
 167
 168
 169 lyx::Session const & LyX::session() const
 170 {
 171         BOOST_ASSERT(session_.get());
 172         return *session_.get();
 173 }
 174
 175
 176 void LyX::addLyXView(boost::shared_ptr<LyXView> const & lyxview)
 177 {
 178         views_.push_back(lyxview);
 179 }
 180
 181
 182 Buffer const * const LyX::updateInset(InsetBase const * inset) const
 183 {
 184         if (!inset)
 185                 return 0;
 186
 187         Buffer const * buffer_ptr = 0;
 188         ViewList::const_iterator it = views_.begin();
 189         ViewList::const_iterator const end = views_.end();
 190         for (; it != end; ++it) {
 191                 Buffer const * ptr = (*it)->updateInset(inset);
 192                 if (ptr)
 193                         buffer_ptr = ptr;
 194         }
 195         return buffer_ptr;
 196 }
 197
 198
 199 void LyX::priv_exec(int & argc, char * argv[])
 200 {
 201         // Here we need to parse the command line. At least
 202         // we need to parse for "-dbg" and "-help"
 203         bool const want_gui = easyParse(argc, argv);
 204
 205         lyx::support::init_package(argv[0], cl_system_support, cl_user_support,
 206                                    lyx::support::top_build_dir_is_one_level_up);
 207
 208         if (want_gui)
 209                 lyx_gui::parse_init(argc, argv);
 210
 211         // check for any spurious extra arguments
 212         // other than documents
 213         for (int argi = 1; argi < argc ; ++argi) {
 214                 if (argv[argi][0] == '-') {
 215                         lyxerr << bformat(_("Wrong command line option `%1$s'. Exiting."),
 216                                 argv[argi]) << endl;
 217                         exit(1);
 218                 }
 219         }
 220
 221         // Initialization of LyX (reads lyxrc and more)
 222         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 223         init(want_gui);
 224         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 225
 226         if (want_gui)
 227                 lyx_gui::parse_lyxrc();
 228
 229         vector<string> files;
 230
 231         for (int argi = argc - 1; argi >= 1; --argi)
 232                 files.push_back(os::internal_path(argv[argi]));
 233
 234         if (first_start)
 235                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 236
 237         // if a file is specified, I assume that user wants to edit *that* file
 238         if (files.empty() && lyxrc.load_session) {
 239                 vector<string> const & lastopened = session_->lastOpenedFiles();
 240                 files.insert(files.end(), lastopened.begin(), lastopened.end()  );
 241         }
 242         // clear this list to save a few bytes of RAM
 243         session_->clearLastOpenedFiles();
 244
 245         // Execute batch commands if available
 246         if (!batch_command.empty()) {
 247
 248                 lyxerr[Debug::INIT] << "About to handle -x '"
 249                        << batch_command << '\'' << endl;
 250
 251                 Buffer * last_loaded = 0;
 252
 253                 vector<string>::const_iterator it = files.begin();
 254                 vector<string>::const_iterator end = files.end();
 255
 256                 for (; it != end; ++it) {
 257                         // get absolute path of file and add ".lyx" to
 258                         // the filename if necessary
 259                         string s = fileSearch(string(), *it, "lyx");
 260                         if (s.empty()) {
 261                                 last_loaded = newFile(*it, string(), true);
 262                         } else {
 263                                 Buffer * buf = bufferlist.newBuffer(s, false);
 264                                 buf->error.connect(boost::bind(&LyX::printError, this, _1));
 265                                 if (loadLyXFile(buf, s))
 266                                         last_loaded = buf;
 267                                 else
 268                                         bufferlist.release(buf);
 269                         }
 270                 }
 271
 272                 // try to dispatch to last loaded buffer first
 273                 if (last_loaded) {
 274                         bool success = false;
 275                         if (last_loaded->dispatch(batch_command, &success)) {
 276                                 quitLyX(false);
 277                                 exit(!success);
 278                         }
 279                 }
 280                 files.clear(); // the files are already loaded
 281         }
 282
 283         if (want_gui)
 284                 lyx_gui::start(batch_command, files);
 285         else {
 286                 // Something went wrong above
 287                 quitLyX(false);
 288                 exit(EXIT_FAILURE);
 289         }
 290 }
 291
 292
 293 /*
 294 Signals and Windows
 295 ===================
 296 The SIGHUP signal does not exist on Windows and does not need to be handled.
 297
 298 Windows handles SIGFPE and SIGSEGV signals as expected.
 299
 300 Cntl+C interrupts (mapped to SIGINT by Windows' POSIX compatability layer)
 301 cause a new thread to be spawned. This may well result in unexpected
 302 behaviour by the single-threaded LyX.
 303
 304 SIGTERM signals will come only from another process actually sending
 305 that signal using 'raise' in Windows' POSIX compatability layer. It will
 306 not come from the general "terminate process" methods that everyone
 307 actually uses (and which can't be trapped). Killing an app 'politely' on
 308 Windows involves first sending a WM_CLOSE message, something that is
 309 caught already by the Qt frontend.
 310
 311 For more information see:
 312
 313 http://aspn.activestate.com/ASPN/Mail/Message/ActiveTcl/2034055
 314 ...signals are mostly useless on Windows for a variety of reasons that are
 315 Windows specific...
 316
 317 'UNIX Application Migration Guide, Chapter 9'
 318 http://msdn.microsoft.com/library/en-us/dnucmg/html/UCMGch09.asp
 319
 320 'How To Terminate an Application "Cleanly" in Win32'
 321 http://support.microsoft.com/default.aspx?scid=kb;en-us;178893
 322 */
 323 extern "C" {
 324
 325 static void error_handler(int err_sig)
 326 {
 327         // Throw away any signals other than the first one received.
 328         static sig_atomic_t handling_error = false;
 329         if (handling_error)
 330                 return;
 331         handling_error = true;
 332
 333         // We have received a signal indicating a fatal error, so
 334         // try and save the data ASAP.
 335         LyX::cref().emergencyCleanup();
 336
 337         // These lyxerr calls may or may not work:
 338
 339         // Signals are asynchronous, so the main program may be in a very
 340         // fragile state when a signal is processed and thus while a signal
 341         // handler function executes.
 342         // In general, therefore, we should avoid performing any
 343         // I/O operations or calling most library and system functions from
 344         // signal handlers.
 345
 346         // This shouldn't matter here, however, as we've already invoked
 347         // emergencyCleanup.
 348         switch (err_sig) {
 349 #ifdef SIGHUP
 350         case SIGHUP:
 351                 lyxerr << "\nlyx: SIGHUP signal caught\nBye." << endl;
 352                 break;
 353 #endif
 354         case SIGFPE:
 355                 lyxerr << "\nlyx: SIGFPE signal caught\nBye." << endl;
 356                 break;
 357         case SIGSEGV:
 358                 lyxerr << "\nlyx: SIGSEGV signal caught\n"
 359                           "Sorry, you have found a bug in LyX. "
 360                           "Please read the bug-reporting instructions "
 361                           "in Help->Introduction and send us a bug report, "
 362                           "if necessary. Thanks !\nBye." << endl;
 363                 break;
 364         case SIGINT:
 365         case SIGTERM:
 366                 // no comments
 367                 break;
 368         }
 369
 370         // Deinstall the signal handlers
 371 #ifdef SIGHUP
 372         signal(SIGHUP, SIG_DFL);
 373 #endif
 374         signal(SIGINT, SIG_DFL);
 375         signal(SIGFPE, SIG_DFL);
 376         signal(SIGSEGV, SIG_DFL);
 377         signal(SIGTERM, SIG_DFL);
 378
 379 #ifdef SIGHUP
 380         if (err_sig == SIGSEGV ||
 381             (err_sig != SIGHUP && !getEnv("LYXDEBUG").empty()))
 382 #else
 383         if (err_sig == SIGSEGV || !getEnv("LYXDEBUG").empty())
 384 #endif
 385                 lyx::support::abort();
 386         exit(0);
 387 }
 388
 389 }
 390
 391
 392 void LyX::printError(ErrorItem const & ei)
 393 {
 394         std::cerr << _("LyX: ") << ei.error
 395                   << ':' << ei.description << std::endl;
 396
 397 }
 398
 399
 400 void LyX::init(bool gui)
 401 {
 402 #ifdef SIGHUP
 403         signal(SIGHUP, error_handler);
 404 #endif
 405         signal(SIGFPE, error_handler);
 406         signal(SIGSEGV, error_handler);
 407         signal(SIGINT, error_handler);
 408         signal(SIGTERM, error_handler);
 409         // SIGPIPE can be safely ignored.
 410
 411         // Check that user LyX directory is ok. We don't do that if
 412         // running in batch mode.
 413         bool reconfigure = false;
 414         if (gui) {
 415                 reconfigure =
 416                         queryUserLyXDir(package().explicit_user_support());
 417         } else {
 418                 first_start = false;
 419         }
 420
 421         // Disable gui when easyparse says so
 422         lyx_gui::use_gui = gui;
 423
 424         lyxrc.tempdir_path = package().temp_dir();
 425         lyxrc.document_path = package().document_dir();
 426
 427         if (lyxrc.template_path.empty()) {
 428                 lyxrc.template_path = addPath(package().system_support(),
 429                                               "templates");
 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         // This one may have been distributed along with LyX.
 444         readRcFile("lyxrc.dist");
 445         // This one is generated in user_support directory by lib/configure.py.
 446         readRcFile("lyxrc.defaults");
 447
 448         system_lyxrc = lyxrc;
 449         system_formats = formats;
 450         system_converters = converters;
 451         system_movers = movers;
 452         system_lcolor = lcolor;
 453
 454         // This one is edited through the preferences dialog.
 455         readRcFile("preferences");
 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 session information '.lyx/session'..." << endl;
 517         session_.reset(new lyx::Session(lyxrc.num_lastfiles));
 518 }
 519
 520
 521 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 522 {
 523         kbmap->bind("Right", FuncRequest(LFUN_CHAR_FORWARD));
 524         kbmap->bind("Left", FuncRequest(LFUN_CHAR_BACKWARD));
 525         kbmap->bind("Up", FuncRequest(LFUN_UP));
 526         kbmap->bind("Down", FuncRequest(LFUN_DOWN));
 527
 528         kbmap->bind("Tab", FuncRequest(LFUN_CELL_FORWARD));
 529         kbmap->bind("C-Tab", FuncRequest(LFUN_CELL_SPLIT));
 530         kbmap->bind("~S-ISO_Left_Tab", FuncRequest(LFUN_CELL_BACKWARD));
 531         kbmap->bind("~S-BackTab", FuncRequest(LFUN_CELL_BACKWARD));
 532
 533         kbmap->bind("Home", FuncRequest(LFUN_LINE_BEGIN));
 534         kbmap->bind("End", FuncRequest(LFUN_LINE_END));
 535         kbmap->bind("Prior", FuncRequest(LFUN_SCREEN_UP));
 536         kbmap->bind("Next", FuncRequest(LFUN_SCREEN_DOWN));
 537
 538         kbmap->bind("Return", FuncRequest(LFUN_BREAK_PARAGRAPH));
 539         //kbmap->bind("~C-~S-~M-nobreakspace", FuncRequest(LFUN_PROTECTEDSPACE));
 540
 541         kbmap->bind("Delete", FuncRequest(LFUN_DELETE_FORWARD));
 542         kbmap->bind("BackSpace", FuncRequest(LFUN_DELETE_FORWARD_BACKWARD));
 543
 544         // kbmap->bindings to enable the use of the numeric keypad
 545         // e.g. Num Lock set
 546         //kbmap->bind("KP_0", FuncRequest(LFUN_SELF_INSERT));
 547         //kbmap->bind("KP_Decimal", FuncRequest(LFUN_SELF_INSERT));
 548         kbmap->bind("KP_Enter", FuncRequest(LFUN_BREAK_PARAGRAPH));
 549         //kbmap->bind("KP_1", FuncRequest(LFUN_SELF_INSERT));
 550         //kbmap->bind("KP_2", FuncRequest(LFUN_SELF_INSERT));
 551         //kbmap->bind("KP_3", FuncRequest(LFUN_SELF_INSERT));
 552         //kbmap->bind("KP_4", FuncRequest(LFUN_SELF_INSERT));
 553         //kbmap->bind("KP_5", FuncRequest(LFUN_SELF_INSERT));
 554         //kbmap->bind("KP_6", FuncRequest(LFUN_SELF_INSERT));
 555         //kbmap->bind("KP_Add", FuncRequest(LFUN_SELF_INSERT));
 556         //kbmap->bind("KP_7", FuncRequest(LFUN_SELF_INSERT));
 557         //kbmap->bind("KP_8", FuncRequest(LFUN_SELF_INSERT));
 558         //kbmap->bind("KP_9", FuncRequest(LFUN_SELF_INSERT));
 559         //kbmap->bind("KP_Divide", FuncRequest(LFUN_SELF_INSERT));
 560         //kbmap->bind("KP_Multiply", FuncRequest(LFUN_SELF_INSERT));
 561         //kbmap->bind("KP_Subtract", FuncRequest(LFUN_SELF_INSERT));
 562         kbmap->bind("KP_Right", FuncRequest(LFUN_CHAR_FORWARD));
 563         kbmap->bind("KP_Left", FuncRequest(LFUN_CHAR_BACKWARD));
 564         kbmap->bind("KP_Up", FuncRequest(LFUN_UP));
 565         kbmap->bind("KP_Down", FuncRequest(LFUN_DOWN));
 566         kbmap->bind("KP_Home", FuncRequest(LFUN_LINE_BEGIN));
 567         kbmap->bind("KP_End", FuncRequest(LFUN_LINE_END));
 568         kbmap->bind("KP_Prior", FuncRequest(LFUN_SCREEN_UP));
 569         kbmap->bind("KP_Next", FuncRequest(LFUN_SCREEN_DOWN));
 570 }
 571
 572
 573 void LyX::emergencyCleanup() const
 574 {
 575         // what to do about tmpfiles is non-obvious. we would
 576         // like to delete any we find, but our lyxdir might
 577         // contain documents etc. which might be helpful on
 578         // a crash
 579
 580         bufferlist.emergencyWriteAll();
 581         if (lyxserver)
 582                 lyxserver->emergencyCleanup();
 583 }
 584
 585
 586 void LyX::deadKeyBindings(kb_keymap * kbmap)
 587 {
 588         // bindKeyings for transparent handling of deadkeys
 589         // The keysyms are gotten from XFree86 X11R6
 590         kbmap->bind("~C-~S-~M-dead_acute", FuncRequest(LFUN_ACCENT_ACUTE));
 591         kbmap->bind("~C-~S-~M-dead_breve", FuncRequest(LFUN_ACCENT_BREVE));
 592         kbmap->bind("~C-~S-~M-dead_caron", FuncRequest(LFUN_ACCENT_CARON));
 593         kbmap->bind("~C-~S-~M-dead_cedilla", FuncRequest(LFUN_ACCENT_CEDILLA));
 594         kbmap->bind("~C-~S-~M-dead_abovering", FuncRequest(LFUN_ACCENT_CIRCLE));
 595         kbmap->bind("~C-~S-~M-dead_circumflex", FuncRequest(LFUN_ACCENT_CIRCUMFLEX));
 596         kbmap->bind("~C-~S-~M-dead_abovedot", FuncRequest(LFUN_ACCENT_DOT));
 597         kbmap->bind("~C-~S-~M-dead_grave", FuncRequest(LFUN_ACCENT_GRAVE));
 598         kbmap->bind("~C-~S-~M-dead_doubleacute", FuncRequest(LFUN_ACCENT_HUNGARIAN_UMLAUT));
 599         kbmap->bind("~C-~S-~M-dead_macron", FuncRequest(LFUN_ACCENT_MACRON));
 600         // nothing with this name
 601         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_ACCENT_SPECIAL_CARON);
 602         kbmap->bind("~C-~S-~M-dead_tilde", FuncRequest(LFUN_ACCENT_TILDE));
 603         kbmap->bind("~C-~S-~M-dead_diaeresis", FuncRequest(LFUN_ACCENT_UMLAUT));
 604         // nothing with this name either...
 605         //kbmap->bind("~C-~S-~M-dead_underbar", FuncRequest(LFUN_ACCENT_UNDERBAR));
 606         kbmap->bind("~C-~S-~M-dead_belowdot", FuncRequest(LFUN_ACCENT_UNDERDOT));
 607         kbmap->bind("~C-~S-~M-dead_tie", FuncRequest(LFUN_ACCENT_TIE));
 608         kbmap->bind("~C-~S-~M-dead_ogonek",FuncRequest(LFUN_ACCENT_OGONEK));
 609 }
 610
 611
 612 bool LyX::queryUserLyXDir(bool explicit_userdir)
 613 {
 614         bool reconfigure = false;
 615
 616         // Does user directory exist?
 617         if (fs::exists(package().user_support()) &&
 618             fs::is_directory(package().user_support())) {
 619                 first_start = false;
 620                 string const configure_script =
 621                         addName(package().system_support(), "configure.py");
 622                 string const userDefaults =
 623                         addName(package().user_support(), "lyxrc.defaults");
 624                 if (fs::exists(configure_script) &&
 625                     fs::exists(userDefaults) &&
 626                     fs::last_write_time(configure_script)
 627                     > fs::last_write_time(userDefaults)) {
 628                         reconfigure = true;
 629                 }
 630                 return reconfigure;
 631         }
 632
 633         first_start = !explicit_userdir;
 634
 635         // If the user specified explicitly a directory, ask whether
 636         // to create it. If the user says "no", then exit.
 637         if (explicit_userdir &&
 638             Alert::prompt(
 639                     _("Missing user LyX directory"),
 640                     bformat(_("You have specified a non-existent user "
 641                               "LyX directory, %1$s.\n"
 642                               "It is needed to keep your own configuration."),
 643                             package().user_support()),
 644                     1, 0,
 645                     _("&Create directory"),
 646                     _("&Exit LyX"))) {
 647                 lyxerr << _("No user LyX directory. Exiting.") << endl;
 648                 exit(1);
 649         }
 650
 651         lyxerr << bformat(_("LyX: Creating directory %1$s"),
 652                           package().user_support())
 653                << endl;
 654         reconfigure = true;
 655
 656         if (!createDirectory(package().user_support(), 0755)) {
 657                 // Failed, so let's exit.
 658                 lyxerr << _("Failed to create directory. Exiting.")
 659                        << endl;
 660                 exit(1);
 661         }
 662
 663         return reconfigure;
 664 }
 665
 666
 667 void LyX::readRcFile(string const & name)
 668 {
 669         lyxerr[Debug::INIT] << "About to read " << name << "... ";
 670
 671         string const lyxrc_path = libFileSearch(string(), name);
 672         if (!lyxrc_path.empty()) {
 673
 674                 lyxerr[Debug::INIT] << "Found in " << lyxrc_path << endl;
 675
 676                 if (lyxrc.read(lyxrc_path) < 0)
 677                         showFileError(name);
 678         } else
 679                 lyxerr[Debug::INIT] << "Not found." << lyxrc_path << endl;
 680
 681 }
 682
 683
 684 // Read the ui file `name'
 685 void LyX::readUIFile(string const & name)
 686 {
 687         enum Uitags {
 688                 ui_menuset = 1,
 689                 ui_toolbar,
 690                 ui_toolbars,
 691                 ui_include,
 692                 ui_last
 693         };
 694
 695         struct keyword_item uitags[ui_last - 1] = {
 696                 { "include", ui_include },
 697                 { "menuset", ui_menuset },
 698                 { "toolbar", ui_toolbar },
 699                 { "toolbars", ui_toolbars }
 700         };
 701
 702         // Ensure that a file is read only once (prevents include loops)
 703         static std::list<string> uifiles;
 704         std::list<string>::const_iterator it  = uifiles.begin();
 705         std::list<string>::const_iterator end = uifiles.end();
 706         it = std::find(it, end, name);
 707         if (it != end) {
 708                 lyxerr[Debug::INIT] << "UI file '" << name
 709                                     << "' has been read already. "
 710                                     << "Is this an include loop?"
 711                                     << endl;
 712                 return;
 713         }
 714
 715         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 716
 717         string const ui_path = libFileSearch("ui", name, "ui");
 718
 719         if (ui_path.empty()) {
 720                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 721                 showFileError(name);
 722                 return;
 723         }
 724         uifiles.push_back(name);
 725
 726         lyxerr[Debug::INIT] << "Found " << name
 727                             << " in " << ui_path << endl;
 728         LyXLex lex(uitags, ui_last - 1);
 729         lex.setFile(ui_path);
 730         if (!lex.isOK()) {
 731                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 732                        << endl;
 733         }
 734
 735         if (lyxerr.debugging(Debug::PARSER))
 736                 lex.printTable(lyxerr);
 737
 738         while (lex.isOK()) {
 739                 switch (lex.lex()) {
 740                 case ui_include: {
 741                         lex.next(true);
 742                         string const file = lex.getString();
 743                         readUIFile(file);
 744                         break;
 745                 }
 746                 case ui_menuset:
 747                         menubackend.read(lex);
 748                         break;
 749
 750                 case ui_toolbar:
 751                         toolbarbackend.read(lex);
 752                         break;
 753
 754                 case ui_toolbars:
 755                         toolbarbackend.readToolbars(lex);
 756                         break;
 757
 758                 default:
 759                         if (!rtrim(lex.getString()).empty())
 760                                 lex.printError("LyX::ReadUIFile: "
 761                                                "Unknown menu tag: `$$Token'");
 762                         break;
 763                 }
 764         }
 765 }
 766
 767
 768 // Read the languages file `name'
 769 void LyX::readLanguagesFile(string const & name)
 770 {
 771         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 772
 773         string const lang_path = libFileSearch(string(), name);
 774         if (lang_path.empty()) {
 775                 showFileError(name);
 776                 return;
 777         }
 778         languages.read(lang_path);
 779 }
 780
 781
 782 // Read the encodings file `name'
 783 void LyX::readEncodingsFile(string const & name)
 784 {
 785         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 786
 787         string const enc_path = libFileSearch(string(), name);
 788         if (enc_path.empty()) {
 789                 showFileError(name);
 790                 return;
 791         }
 792         encodings.read(enc_path);
 793 }
 794
 795
 796 namespace {
 797
 798 bool is_gui = true;
 799 string batch;
 800
 801 /// return the the number of arguments consumed
 802 typedef boost::function<int(string const &, string const &)> cmd_helper;
 803
 804 int parse_dbg(string const & arg, string const &)
 805 {
 806         if (arg.empty()) {
 807                 lyxerr << _("List of supported debug flags:") << endl;
 808                 Debug::showTags(lyxerr);
 809                 exit(0);
 810         }
 811         lyxerr << bformat(_("Setting debug level to %1$s"), arg) << endl;
 812
 813         lyxerr.level(Debug::value(arg));
 814         Debug::showLevel(lyxerr, lyxerr.level());
 815         return 1;
 816 }
 817
 818
 819 int parse_help(string const &, string const &)
 820 {
 821         lyxerr <<
 822                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 823                   "Command line switches (case sensitive):\n"
 824                   "\t-help              summarize LyX usage\n"
 825                   "\t-userdir dir       set user directory to dir\n"
 826                   "\t-sysdir dir        set system directory to dir\n"
 827                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 828                   "\t-dbg feature[,feature]...\n"
 829                   "                  select the features to debug.\n"
 830                   "                  Type `lyx -dbg' to see the list of features\n"
 831                   "\t-x [--execute] command\n"
 832                   "                  where command is a lyx command.\n"
 833                   "\t-e [--export] fmt\n"
 834                   "                  where fmt is the export format of choice.\n"
 835                   "\t-i [--import] fmt file.xxx\n"
 836                   "                  where fmt is the import format of choice\n"
 837                   "                  and file.xxx is the file to be imported.\n"
 838                   "\t-version        summarize version and build info\n"
 839                   "Check the LyX man page for more details.") << endl;
 840         exit(0);
 841         return 0;
 842 }
 843
 844 int parse_version(string const &, string const &)
 845 {
 846         lyxerr << "LyX " << lyx_version
 847                << " of " << lyx_release_date << endl;
 848         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 849
 850         lyxerr << lyx_version_info << endl;
 851         exit(0);
 852         return 0;
 853 }
 854
 855 int parse_sysdir(string const & arg, string const &)
 856 {
 857         if (arg.empty()) {
 858                 lyxerr << _("Missing directory for -sysdir switch") << endl;
 859                 exit(1);
 860         }
 861         cl_system_support = arg;
 862         return 1;
 863 }
 864
 865 int parse_userdir(string const & arg, string const &)
 866 {
 867         if (arg.empty()) {
 868                 lyxerr << _("Missing directory for -userdir switch") << endl;
 869                 exit(1);
 870         }
 871         cl_user_support = arg;
 872         return 1;
 873 }
 874
 875 int parse_execute(string const & arg, string const &)
 876 {
 877         if (arg.empty()) {
 878                 lyxerr << _("Missing command string after --execute switch") << endl;
 879                 exit(1);
 880         }
 881         batch = arg;
 882         return 1;
 883 }
 884
 885 int parse_export(string const & type, string const &)
 886 {
 887         if (type.empty()) {
 888                 lyxerr << _("Missing file type [eg latex, ps...] after "
 889                         "--export switch") << endl;
 890                 exit(1);
 891         }
 892         batch = "buffer-export " + type;
 893         is_gui = false;
 894         return 1;
 895 }
 896
 897 int parse_import(string const & type, string const & file)
 898 {
 899         if (type.empty()) {
 900                 lyxerr << _("Missing file type [eg latex, ps...] after "
 901                         "--import switch") << endl;
 902                 exit(1);
 903         }
 904         if (file.empty()) {
 905                 lyxerr << _("Missing filename for --import") << endl;
 906                 exit(1);
 907         }
 908
 909         batch = "buffer-import " + type + ' ' + file;
 910         return 2;
 911 }
 912
 913 } // namespace anon
 914
 915
 916 bool LyX::easyParse(int & argc, char * argv[])
 917 {
 918         std::map<string, cmd_helper> cmdmap;
 919
 920         cmdmap["-dbg"] = parse_dbg;
 921         cmdmap["-help"] = parse_help;
 922         cmdmap["--help"] = parse_help;
 923         cmdmap["-version"] = parse_version;
 924         cmdmap["--version"] = parse_version;
 925         cmdmap["-sysdir"] = parse_sysdir;
 926         cmdmap["-userdir"] = parse_userdir;
 927         cmdmap["-x"] = parse_execute;
 928         cmdmap["--execute"] = parse_execute;
 929         cmdmap["-e"] = parse_export;
 930         cmdmap["--export"] = parse_export;
 931         cmdmap["-i"] = parse_import;
 932         cmdmap["--import"] = parse_import;
 933
 934         for (int i = 1; i < argc; ++i) {
 935                 std::map<string, cmd_helper>::const_iterator it
 936                         = cmdmap.find(argv[i]);
 937
 938                 // don't complain if not found - may be parsed later
 939                 if (it == cmdmap.end())
 940                         continue;
 941
 942                 string arg((i + 1 < argc) ? argv[i + 1] : "");
 943                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
 944
 945                 int const remove = 1 + it->second(arg, arg2);
 946
 947                 // Now, remove used arguments by shifting
 948                 // the following ones remove places down.
 949                 argc -= remove;
 950                 for (int j = i; j < argc; ++j)
 951                         argv[j] = argv[j + remove];
 952                 --i;
 953         }
 954
 955         batch_command = batch;
 956
 957         return is_gui;
 958 }