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/convert.h"
  53 #include "support/os.h"
  54 #include "support/package.h"
  55 #include "support/path.h"
  56 #include "support/systemcall.h"
  57
  58 #include <boost/bind.hpp>
  59 #include <boost/filesystem/operations.hpp>
  60
  61 #include <iostream>
  62 #include <csignal>
  63
  64 using lyx::support::addName;
  65 using lyx::support::addPath;
  66 using lyx::support::bformat;
  67 using lyx::support::createDirectory;
  68 using lyx::support::createLyXTmpDir;
  69 using lyx::support::fileSearch;
  70 using lyx::support::getEnv;
  71 using lyx::support::i18nLibFileSearch;
  72 using lyx::support::libFileSearch;
  73 using lyx::support::package;
  74 using lyx::support::prependEnvPath;
  75 using lyx::support::rtrim;
  76 using lyx::support::Systemcall;
  77
  78 using lyx::docstring;
  79
  80 namespace os = lyx::support::os;
  81 namespace fs = boost::filesystem;
  82
  83 using std::endl;
  84 using std::string;
  85 using std::vector;
  86
  87 #ifndef CXX_GLOBAL_CSTD
  88 using std::exit;
  89 using std::signal;
  90 using std::system;
  91 #endif
  92
  93
  94 extern LyXServer * lyxserver;
  95
  96 // This is the global bufferlist object
  97 BufferList bufferlist;
  98
  99 // convenient to have it here.
 100 boost::scoped_ptr<kb_keymap> toplevel_keymap;
 101
 102 namespace {
 103
 104 // Filled with the command line arguments "foo" of "-sysdir foo" or
 105 // "-userdir foo".
 106 string cl_system_support;
 107 string cl_user_support;
 108
 109
 110 void lyx_exit(int status)
 111 {
 112         // FIXME: We should not directly call exit(), since it only
 113         // guarantees a return to the system, no application cleanup.
 114         // This may cause troubles with not executed destructors.
 115         if (lyx_gui::use_gui)
 116                 // lyx_gui::exit may return and only schedule the exit
 117                 lyx_gui::exit(status);
 118         exit(status);
 119 }
 120
 121
 122 void showFileError(string const & error)
 123 {
 124         Alert::warning(_("Could not read configuration file"),
 125                        bformat(_("Error while reading the configuration file\n%1$s.\n"
 126                            "Please check your installation."), lyx::from_utf8(error)));
 127 }
 128
 129
 130 void reconfigureUserLyXDir()
 131 {
 132         string const configure_command = package().configure_command();
 133
 134         lyxerr << lyx::to_utf8(_("LyX: reconfiguring user directory")) << endl;
 135         lyx::support::Path p(package().user_support());
 136         Systemcall one;
 137         one.startscript(Systemcall::Wait, configure_command);
 138         lyxerr << "LyX: " << lyx::to_utf8(_("Done!")) << endl;
 139 }
 140
 141 } // namespace anon
 142
 143
 144 boost::scoped_ptr<LyX> LyX::singleton_;
 145
 146 int LyX::exec(int & argc, char * argv[])
 147 {
 148         BOOST_ASSERT(!singleton_.get());
 149         // We must return from this before launching the gui so that
 150         // other parts of the code can access singleton_ through
 151         // LyX::ref and LyX::cref.
 152         singleton_.reset(new LyX);
 153         // Start the real execution loop.
 154         return singleton_->priv_exec(argc, argv);
 155 }
 156
 157
 158 LyX & LyX::ref()
 159 {
 160         BOOST_ASSERT(singleton_.get());
 161         return *singleton_.get();
 162 }
 163
 164
 165 LyX const & LyX::cref()
 166 {
 167         BOOST_ASSERT(singleton_.get());
 168         return *singleton_.get();
 169 }
 170
 171
 172 LyX::LyX()
 173         : first_start(false), geometryOption_(false)
 174 {}
 175
 176
 177 lyx::Session & LyX::session()
 178 {
 179         BOOST_ASSERT(session_.get());
 180         return *session_.get();
 181 }
 182
 183
 184 lyx::Session const & LyX::session() const
 185 {
 186         BOOST_ASSERT(session_.get());
 187         return *session_.get();
 188 }
 189
 190
 191 void LyX::addLyXView(LyXView * lyxview)
 192 {
 193         views_.push_back(lyxview);
 194 }
 195
 196
 197 Buffer const * const LyX::updateInset(InsetBase const * inset) const
 198 {
 199         if (!inset)
 200                 return 0;
 201
 202         Buffer const * buffer_ptr = 0;
 203         ViewList::const_iterator it = views_.begin();
 204         ViewList::const_iterator const end = views_.end();
 205         for (; it != end; ++it) {
 206                 Buffer const * ptr = (*it)->updateInset(inset);
 207                 if (ptr)
 208                         buffer_ptr = ptr;
 209         }
 210         return buffer_ptr;
 211 }
 212
 213
 214 int LyX::priv_exec(int & argc, char * argv[])
 215 {
 216         // Here we need to parse the command line. At least
 217         // we need to parse for "-dbg" and "-help"
 218         lyx_gui::use_gui = easyParse(argc, argv);
 219
 220         lyx::support::init_package(argv[0], cl_system_support, cl_user_support,
 221                                    lyx::support::top_build_dir_is_one_level_up);
 222
 223         // Start the real execution loop.
 224         if (lyx_gui::use_gui)
 225                 return lyx_gui::exec(argc, argv);
 226         else
 227                 return exec2(argc, argv);
 228 }
 229
 230
 231 int LyX::exec2(int & argc, char * argv[])
 232 {
 233         // check for any spurious extra arguments
 234         // other than documents
 235         for (int argi = 1; argi < argc ; ++argi) {
 236                 if (argv[argi][0] == '-') {
 237                         lyxerr << lyx::to_utf8(
 238                                 bformat(_("Wrong command line option `%1$s'. Exiting."),
 239                                 lyx::from_utf8(argv[argi]))) << endl;
 240                         return EXIT_FAILURE;
 241                 }
 242         }
 243
 244         // Initialization of LyX (reads lyxrc and more)
 245         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 246         bool const success = init();
 247         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 248         if (!success)
 249                 return EXIT_FAILURE;
 250
 251         if (lyx_gui::use_gui)
 252                 lyx_gui::parse_lyxrc();
 253
 254         vector<string> files;
 255
 256         for (int argi = argc - 1; argi >= 1; --argi)
 257                 files.push_back(os::internal_path(argv[argi]));
 258
 259         if (first_start)
 260                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 261
 262         // Execute batch commands if available
 263         if (!batch_command.empty()) {
 264
 265                 lyxerr[Debug::INIT] << "About to handle -x '"
 266                        << batch_command << '\'' << endl;
 267
 268                 Buffer * last_loaded = 0;
 269
 270                 vector<string>::const_iterator it = files.begin();
 271                 vector<string>::const_iterator end = files.end();
 272
 273                 for (; it != end; ++it) {
 274                         // get absolute path of file and add ".lyx" to
 275                         // the filename if necessary
 276                         string s = fileSearch(string(), *it, "lyx");
 277                         if (s.empty()) {
 278                                 Buffer * const b = newFile(*it, string(), true);
 279                                 if (b)
 280                                         last_loaded = b;
 281                         } else {
 282                                 Buffer * buf = bufferlist.newBuffer(s, false);
 283                                 if (loadLyXFile(buf, s)) {
 284                                         last_loaded = buf;
 285                                         ErrorList const & el = buf->errorList("Parse");
 286                                         if (!el.empty())
 287                                                 for_each(el.begin(), el.end(),
 288                                                         boost::bind(&LyX::printError, this, _1));
 289                                 }
 290                                 else
 291                                         bufferlist.release(buf);
 292                         }
 293                 }
 294
 295                 // try to dispatch to last loaded buffer first
 296                 if (last_loaded) {
 297                         bool success = false;
 298                         if (last_loaded->dispatch(batch_command, &success)) {
 299                                 quitLyX(false);
 300                                 return !success;
 301                         }
 302                 }
 303                 files.clear(); // the files are already loaded
 304         }
 305
 306         if (lyx_gui::use_gui) {
 307                 // determine windows size and position, from lyxrc and/or session
 308                 // initial geometry
 309                 unsigned int width = 690;
 310                 unsigned int height = 510;
 311                 bool maximize = false;
 312                 // first try lyxrc
 313                 if (lyxrc.geometry_width != 0 && lyxrc.geometry_height != 0 ) {
 314                         width = lyxrc.geometry_width;
 315                         height = lyxrc.geometry_height;
 316                 }
 317                 // if lyxrc returns (0,0), then use session info
 318                 else {
 319                         string val = session().loadSessionInfo("WindowWidth");
 320                         if (!val.empty())
 321                                 width = convert<unsigned int>(val);
 322                         val = session().loadSessionInfo("WindowHeight");
 323                         if (!val.empty())
 324                                 height = convert<unsigned int>(val);
 325                         if (session().loadSessionInfo("WindowIsMaximized") == "yes")
 326                                 maximize = true;
 327                 }
 328                 // if user wants to restore window position
 329                 int posx = -1;
 330                 int posy = -1;
 331                 if (lyxrc.geometry_xysaved) {
 332                         string val = session().loadSessionInfo("WindowPosX");
 333                         if (!val.empty())
 334                                 posx = convert<int>(val);
 335                         val = session().loadSessionInfo("WindowPosY");
 336                         if (!val.empty())
 337                                 posy = convert<int>(val);
 338                 }
 339
 340                 if (geometryOption_) {
 341                         width = 0;
 342                         height = 0;
 343                 }
 344                 // create the main window
 345                 LyXView * view = lyx_gui::create_view(width, height, posx, posy, maximize);
 346
 347                 // load files
 348                 for_each(files.begin(), files.end(),
 349                         bind(&LyXView::loadLyXFile, view, _1, true));
 350
 351                 // if a file is specified, I assume that user wants to edit *that* file
 352                 if (files.empty() && lyxrc.load_session) {
 353                         vector<string> const & lastopened = session_->lastOpenedFiles();
 354                         // do not add to the lastfile list since these files are restored from
 355                         // last seesion, and should be already there (regular files), or should
 356                         // not be added at all (help files).
 357                         for_each(lastopened.begin(), lastopened.end(),
 358                                 bind(&LyXView::loadLyXFile, view, _1, false));
 359                 }
 360                 // clear this list to save a few bytes of RAM
 361                 session_->clearLastOpenedFiles();
 362
 363                 return lyx_gui::start(view, batch_command);
 364         } else {
 365                 // Something went wrong above
 366                 quitLyX(false);
 367                 return EXIT_FAILURE;
 368         }
 369 }
 370
 371
 372 /*
 373 Signals and Windows
 374 ===================
 375 The SIGHUP signal does not exist on Windows and does not need to be handled.
 376
 377 Windows handles SIGFPE and SIGSEGV signals as expected.
 378
 379 Cntl+C interrupts (mapped to SIGINT by Windows' POSIX compatability layer)
 380 cause a new thread to be spawned. This may well result in unexpected
 381 behaviour by the single-threaded LyX.
 382
 383 SIGTERM signals will come only from another process actually sending
 384 that signal using 'raise' in Windows' POSIX compatability layer. It will
 385 not come from the general "terminate process" methods that everyone
 386 actually uses (and which can't be trapped). Killing an app 'politely' on
 387 Windows involves first sending a WM_CLOSE message, something that is
 388 caught already by the Qt frontend.
 389
 390 For more information see:
 391
 392 http://aspn.activestate.com/ASPN/Mail/Message/ActiveTcl/2034055
 393 ...signals are mostly useless on Windows for a variety of reasons that are
 394 Windows specific...
 395
 396 'UNIX Application Migration Guide, Chapter 9'
 397 http://msdn.microsoft.com/library/en-us/dnucmg/html/UCMGch09.asp
 398
 399 'How To Terminate an Application "Cleanly" in Win32'
 400 http://support.microsoft.com/default.aspx?scid=kb;en-us;178893
 401 */
 402 extern "C" {
 403
 404 static void error_handler(int err_sig)
 405 {
 406         // Throw away any signals other than the first one received.
 407         static sig_atomic_t handling_error = false;
 408         if (handling_error)
 409                 return;
 410         handling_error = true;
 411
 412         // We have received a signal indicating a fatal error, so
 413         // try and save the data ASAP.
 414         LyX::cref().emergencyCleanup();
 415
 416         // These lyxerr calls may or may not work:
 417
 418         // Signals are asynchronous, so the main program may be in a very
 419         // fragile state when a signal is processed and thus while a signal
 420         // handler function executes.
 421         // In general, therefore, we should avoid performing any
 422         // I/O operations or calling most library and system functions from
 423         // signal handlers.
 424
 425         // This shouldn't matter here, however, as we've already invoked
 426         // emergencyCleanup.
 427         switch (err_sig) {
 428 #ifdef SIGHUP
 429         case SIGHUP:
 430                 lyxerr << "\nlyx: SIGHUP signal caught\nBye." << endl;
 431                 break;
 432 #endif
 433         case SIGFPE:
 434                 lyxerr << "\nlyx: SIGFPE signal caught\nBye." << endl;
 435                 break;
 436         case SIGSEGV:
 437                 lyxerr << "\nlyx: SIGSEGV signal caught\n"
 438                           "Sorry, you have found a bug in LyX. "
 439                           "Please read the bug-reporting instructions "
 440                           "in Help->Introduction and send us a bug report, "
 441                           "if necessary. Thanks !\nBye." << endl;
 442                 break;
 443         case SIGINT:
 444         case SIGTERM:
 445                 // no comments
 446                 break;
 447         }
 448
 449         // Deinstall the signal handlers
 450 #ifdef SIGHUP
 451         signal(SIGHUP, SIG_DFL);
 452 #endif
 453         signal(SIGINT, SIG_DFL);
 454         signal(SIGFPE, SIG_DFL);
 455         signal(SIGSEGV, SIG_DFL);
 456         signal(SIGTERM, SIG_DFL);
 457
 458 #ifdef SIGHUP
 459         if (err_sig == SIGSEGV ||
 460             (err_sig != SIGHUP && !getEnv("LYXDEBUG").empty()))
 461 #else
 462         if (err_sig == SIGSEGV || !getEnv("LYXDEBUG").empty())
 463 #endif
 464                 lyx::support::abort();
 465         exit(0);
 466 }
 467
 468 }
 469
 470
 471 void LyX::printError(ErrorItem const & ei)
 472 {
 473         docstring tmp = _("LyX: ") + ei.error + lyx::char_type(':')
 474                 + ei.description;
 475         std::cerr << lyx::to_utf8(tmp) << std::endl;
 476 }
 477
 478
 479 bool LyX::init()
 480 {
 481 #ifdef SIGHUP
 482         signal(SIGHUP, error_handler);
 483 #endif
 484         signal(SIGFPE, error_handler);
 485         signal(SIGSEGV, error_handler);
 486         signal(SIGINT, error_handler);
 487         signal(SIGTERM, error_handler);
 488         // SIGPIPE can be safely ignored.
 489
 490         lyxrc.tempdir_path = package().temp_dir();
 491         lyxrc.document_path = package().document_dir();
 492
 493         if (lyxrc.template_path.empty()) {
 494                 lyxrc.template_path = addPath(package().system_support(),
 495                                               "templates");
 496         }
 497
 498         if (lyxrc.roman_font_name.empty())
 499                 lyxrc.roman_font_name = lyx_gui::roman_font_name();
 500         if (lyxrc.sans_font_name.empty())
 501                 lyxrc.sans_font_name = lyx_gui::sans_font_name();
 502         if (lyxrc.typewriter_font_name.empty())
 503                 lyxrc.typewriter_font_name = lyx_gui::typewriter_font_name();
 504
 505         //
 506         // Read configuration files
 507         //
 508
 509         // This one may have been distributed along with LyX.
 510         if (!readRcFile("lyxrc.dist"))
 511                 return false;
 512
 513         // Set the PATH correctly.
 514 #if !defined (USE_POSIX_PACKAGING)
 515         // Add the directory containing the LyX executable to the path
 516         // so that LyX can find things like tex2lyx.
 517         if (package().build_support().empty())
 518                 prependEnvPath("PATH", package().binary_dir());
 519 #endif
 520         if (!lyxrc.path_prefix.empty())
 521                 prependEnvPath("PATH", lyxrc.path_prefix);
 522
 523         // Check that user LyX directory is ok.
 524         if (queryUserLyXDir(package().explicit_user_support()))
 525                 reconfigureUserLyXDir();
 526
 527         // no need for a splash when there is no GUI
 528         if (!lyx_gui::use_gui) {
 529                 first_start = false;
 530         }
 531
 532         // This one is generated in user_support directory by lib/configure.py.
 533         if (!readRcFile("lyxrc.defaults"))
 534                 return false;
 535
 536         // Query the OS to know what formats are viewed natively
 537         formats.setAutoOpen();
 538
 539         system_lyxrc = lyxrc;
 540         system_formats = formats;
 541         system_converters = converters;
 542         system_movers = movers;
 543         system_lcolor = lcolor;
 544
 545         // This one is edited through the preferences dialog.
 546         if (!readRcFile("preferences"))
 547                 return false;
 548
 549         if (!readEncodingsFile("encodings"))
 550                 return false;
 551         if (!readLanguagesFile("languages"))
 552                 return false;
 553
 554         // Load the layouts
 555         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 556         if (!LyXSetStyle())
 557                 return false;
 558
 559         if (lyx_gui::use_gui) {
 560                 // Set up bindings
 561                 toplevel_keymap.reset(new kb_keymap);
 562                 defaultKeyBindings(toplevel_keymap.get());
 563                 toplevel_keymap->read(lyxrc.bind_file);
 564
 565                 // Read menus
 566                 if (!readUIFile(lyxrc.ui_file))
 567                         return false;
 568         }
 569
 570         if (lyxerr.debugging(Debug::LYXRC))
 571                 lyxrc.print();
 572
 573         os::windows_style_tex_paths(lyxrc.windows_style_tex_paths);
 574         if (!lyxrc.path_prefix.empty())
 575                 prependEnvPath("PATH", lyxrc.path_prefix);
 576
 577         if (fs::exists(lyxrc.document_path) &&
 578             fs::is_directory(lyxrc.document_path))
 579                 package().document_dir() = lyxrc.document_path;
 580
 581         package().temp_dir() = createLyXTmpDir(lyxrc.tempdir_path);
 582         if (package().temp_dir().empty()) {
 583                 Alert::error(_("Could not create temporary directory"),
 584                              bformat(_("Could not create a temporary directory in\n"
 585                                                     "%1$s. Make sure that this\n"
 586                                                     "path exists and is writable and try again."),
 587                                      lyx::from_utf8(lyxrc.tempdir_path)));
 588                 // createLyXTmpDir() tries sufficiently hard to create a
 589                 // usable temp dir, so the probability to come here is
 590                 // close to zero. We therefore don't try to overcome this
 591                 // problem with e.g. asking the user for a new path and
 592                 // trying again but simply exit.
 593                 return false;
 594         }
 595
 596         if (lyxerr.debugging(Debug::INIT)) {
 597                 lyxerr << "LyX tmp dir: `" << package().temp_dir() << '\'' << endl;
 598         }
 599
 600         lyxerr[Debug::INIT] << "Reading session information '.lyx/session'..." << endl;
 601         session_.reset(new lyx::Session(lyxrc.num_lastfiles));
 602         return true;
 603 }
 604
 605
 606 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 607 {
 608         kbmap->bind("Right", FuncRequest(LFUN_CHAR_FORWARD));
 609         kbmap->bind("Left", FuncRequest(LFUN_CHAR_BACKWARD));
 610         kbmap->bind("Up", FuncRequest(LFUN_UP));
 611         kbmap->bind("Down", FuncRequest(LFUN_DOWN));
 612
 613         kbmap->bind("Tab", FuncRequest(LFUN_CELL_FORWARD));
 614         kbmap->bind("C-Tab", FuncRequest(LFUN_CELL_SPLIT));
 615         kbmap->bind("~S-ISO_Left_Tab", FuncRequest(LFUN_CELL_BACKWARD));
 616         kbmap->bind("~S-BackTab", FuncRequest(LFUN_CELL_BACKWARD));
 617
 618         kbmap->bind("Home", FuncRequest(LFUN_LINE_BEGIN));
 619         kbmap->bind("End", FuncRequest(LFUN_LINE_END));
 620         kbmap->bind("Prior", FuncRequest(LFUN_SCREEN_UP));
 621         kbmap->bind("Next", FuncRequest(LFUN_SCREEN_DOWN));
 622
 623         kbmap->bind("Return", FuncRequest(LFUN_BREAK_PARAGRAPH));
 624         //kbmap->bind("~C-~S-~M-nobreakspace", FuncRequest(LFUN_PROTECTEDSPACE));
 625
 626         kbmap->bind("Delete", FuncRequest(LFUN_CHAR_DELETE_FORWARD));
 627         kbmap->bind("BackSpace", FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
 628
 629         // kbmap->bindings to enable the use of the numeric keypad
 630         // e.g. Num Lock set
 631         //kbmap->bind("KP_0", FuncRequest(LFUN_SELF_INSERT));
 632         //kbmap->bind("KP_Decimal", FuncRequest(LFUN_SELF_INSERT));
 633         kbmap->bind("KP_Enter", FuncRequest(LFUN_BREAK_PARAGRAPH));
 634         //kbmap->bind("KP_1", FuncRequest(LFUN_SELF_INSERT));
 635         //kbmap->bind("KP_2", FuncRequest(LFUN_SELF_INSERT));
 636         //kbmap->bind("KP_3", FuncRequest(LFUN_SELF_INSERT));
 637         //kbmap->bind("KP_4", FuncRequest(LFUN_SELF_INSERT));
 638         //kbmap->bind("KP_5", FuncRequest(LFUN_SELF_INSERT));
 639         //kbmap->bind("KP_6", FuncRequest(LFUN_SELF_INSERT));
 640         //kbmap->bind("KP_Add", FuncRequest(LFUN_SELF_INSERT));
 641         //kbmap->bind("KP_7", FuncRequest(LFUN_SELF_INSERT));
 642         //kbmap->bind("KP_8", FuncRequest(LFUN_SELF_INSERT));
 643         //kbmap->bind("KP_9", FuncRequest(LFUN_SELF_INSERT));
 644         //kbmap->bind("KP_Divide", FuncRequest(LFUN_SELF_INSERT));
 645         //kbmap->bind("KP_Multiply", FuncRequest(LFUN_SELF_INSERT));
 646         //kbmap->bind("KP_Subtract", FuncRequest(LFUN_SELF_INSERT));
 647         kbmap->bind("KP_Right", FuncRequest(LFUN_CHAR_FORWARD));
 648         kbmap->bind("KP_Left", FuncRequest(LFUN_CHAR_BACKWARD));
 649         kbmap->bind("KP_Up", FuncRequest(LFUN_UP));
 650         kbmap->bind("KP_Down", FuncRequest(LFUN_DOWN));
 651         kbmap->bind("KP_Home", FuncRequest(LFUN_LINE_BEGIN));
 652         kbmap->bind("KP_End", FuncRequest(LFUN_LINE_END));
 653         kbmap->bind("KP_Prior", FuncRequest(LFUN_SCREEN_UP));
 654         kbmap->bind("KP_Next", FuncRequest(LFUN_SCREEN_DOWN));
 655 }
 656
 657
 658 void LyX::emergencyCleanup() const
 659 {
 660         // what to do about tmpfiles is non-obvious. we would
 661         // like to delete any we find, but our lyxdir might
 662         // contain documents etc. which might be helpful on
 663         // a crash
 664
 665         bufferlist.emergencyWriteAll();
 666         if (lyxserver)
 667                 lyxserver->emergencyCleanup();
 668 }
 669
 670
 671 void LyX::deadKeyBindings(kb_keymap * kbmap)
 672 {
 673         // bindKeyings for transparent handling of deadkeys
 674         // The keysyms are gotten from XFree86 X11R6
 675         kbmap->bind("~C-~S-~M-dead_acute", FuncRequest(LFUN_ACCENT_ACUTE));
 676         kbmap->bind("~C-~S-~M-dead_breve", FuncRequest(LFUN_ACCENT_BREVE));
 677         kbmap->bind("~C-~S-~M-dead_caron", FuncRequest(LFUN_ACCENT_CARON));
 678         kbmap->bind("~C-~S-~M-dead_cedilla", FuncRequest(LFUN_ACCENT_CEDILLA));
 679         kbmap->bind("~C-~S-~M-dead_abovering", FuncRequest(LFUN_ACCENT_CIRCLE));
 680         kbmap->bind("~C-~S-~M-dead_circumflex", FuncRequest(LFUN_ACCENT_CIRCUMFLEX));
 681         kbmap->bind("~C-~S-~M-dead_abovedot", FuncRequest(LFUN_ACCENT_DOT));
 682         kbmap->bind("~C-~S-~M-dead_grave", FuncRequest(LFUN_ACCENT_GRAVE));
 683         kbmap->bind("~C-~S-~M-dead_doubleacute", FuncRequest(LFUN_ACCENT_HUNGARIAN_UMLAUT));
 684         kbmap->bind("~C-~S-~M-dead_macron", FuncRequest(LFUN_ACCENT_MACRON));
 685         // nothing with this name
 686         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_ACCENT_SPECIAL_CARON);
 687         kbmap->bind("~C-~S-~M-dead_tilde", FuncRequest(LFUN_ACCENT_TILDE));
 688         kbmap->bind("~C-~S-~M-dead_diaeresis", FuncRequest(LFUN_ACCENT_UMLAUT));
 689         // nothing with this name either...
 690         //kbmap->bind("~C-~S-~M-dead_underbar", FuncRequest(LFUN_ACCENT_UNDERBAR));
 691         kbmap->bind("~C-~S-~M-dead_belowdot", FuncRequest(LFUN_ACCENT_UNDERDOT));
 692         kbmap->bind("~C-~S-~M-dead_tie", FuncRequest(LFUN_ACCENT_TIE));
 693         kbmap->bind("~C-~S-~M-dead_ogonek",FuncRequest(LFUN_ACCENT_OGONEK));
 694 }
 695
 696
 697 namespace {
 698
 699 // return true if file does not exist or is older than configure.py.
 700 bool needsUpdate(string const & file)
 701 {
 702         static string const configure_script =
 703                 addName(package().system_support(), "configure.py");
 704         string const absfile =
 705                 addName(package().user_support(), file);
 706
 707         return (! fs::exists(absfile))
 708                 || (fs::last_write_time(configure_script)
 709                     > fs::last_write_time(absfile));
 710 }
 711
 712 }
 713
 714
 715 bool LyX::queryUserLyXDir(bool explicit_userdir)
 716 {
 717         // Does user directory exist?
 718         if (fs::exists(package().user_support()) &&
 719             fs::is_directory(package().user_support())) {
 720                 first_start = false;
 721
 722                 return needsUpdate("lyxrc.defaults")
 723                         || needsUpdate("textclass.lst")
 724                         || needsUpdate("packages.lst");
 725         }
 726
 727         first_start = !explicit_userdir;
 728
 729         // If the user specified explicitly a directory, ask whether
 730         // to create it. If the user says "no", then exit.
 731         if (explicit_userdir &&
 732             Alert::prompt(
 733                     _("Missing user LyX directory"),
 734                     bformat(_("You have specified a non-existent user "
 735                                            "LyX directory, %1$s.\n"
 736                                            "It is needed to keep your own configuration."),
 737                             lyx::from_utf8(package().user_support())),
 738                     1, 0,
 739                     _("&Create directory"),
 740                     _("&Exit LyX"))) {
 741                 lyxerr << lyx::to_utf8(_("No user LyX directory. Exiting.")) << endl;
 742                 lyx_exit(EXIT_FAILURE);
 743         }
 744
 745         lyxerr << lyx::to_utf8(bformat(_("LyX: Creating directory %1$s"),
 746                           lyx::from_utf8(package().user_support())))
 747                << endl;
 748
 749         if (!createDirectory(package().user_support(), 0755)) {
 750                 // Failed, so let's exit.
 751                 lyxerr << lyx::to_utf8(_("Failed to create directory. Exiting."))
 752                        << endl;
 753                 lyx_exit(EXIT_FAILURE);
 754         }
 755
 756         return true;
 757 }
 758
 759
 760 bool LyX::readRcFile(string const & name)
 761 {
 762         lyxerr[Debug::INIT] << "About to read " << name << "... ";
 763
 764         string const lyxrc_path = libFileSearch(string(), name);
 765         if (!lyxrc_path.empty()) {
 766
 767                 lyxerr[Debug::INIT] << "Found in " << lyxrc_path << endl;
 768
 769                 if (lyxrc.read(lyxrc_path) < 0) {
 770                         showFileError(name);
 771                         return false;
 772                 }
 773         } else
 774                 lyxerr[Debug::INIT] << "Not found." << lyxrc_path << endl;
 775         return true;
 776
 777 }
 778
 779
 780 // Read the ui file `name'
 781 bool LyX::readUIFile(string const & name)
 782 {
 783         enum Uitags {
 784                 ui_menuset = 1,
 785                 ui_toolbar,
 786                 ui_toolbars,
 787                 ui_include,
 788                 ui_last
 789         };
 790
 791         struct keyword_item uitags[ui_last - 1] = {
 792                 { "include", ui_include },
 793                 { "menuset", ui_menuset },
 794                 { "toolbar", ui_toolbar },
 795                 { "toolbars", ui_toolbars }
 796         };
 797
 798         // Ensure that a file is read only once (prevents include loops)
 799         static std::list<string> uifiles;
 800         std::list<string>::const_iterator it  = uifiles.begin();
 801         std::list<string>::const_iterator end = uifiles.end();
 802         it = std::find(it, end, name);
 803         if (it != end) {
 804                 lyxerr[Debug::INIT] << "UI file '" << name
 805                                     << "' has been read already. "
 806                                     << "Is this an include loop?"
 807                                     << endl;
 808                 return false;
 809         }
 810
 811         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 812
 813         string const ui_path = libFileSearch("ui", name, "ui");
 814
 815         if (ui_path.empty()) {
 816                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 817                 showFileError(name);
 818                 return false;
 819         }
 820         uifiles.push_back(name);
 821
 822         lyxerr[Debug::INIT] << "Found " << name
 823                             << " in " << ui_path << endl;
 824         LyXLex lex(uitags, ui_last - 1);
 825         lex.setFile(ui_path);
 826         if (!lex.isOK()) {
 827                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 828                        << endl;
 829         }
 830
 831         if (lyxerr.debugging(Debug::PARSER))
 832                 lex.printTable(lyxerr);
 833
 834         while (lex.isOK()) {
 835                 switch (lex.lex()) {
 836                 case ui_include: {
 837                         lex.next(true);
 838                         string const file = lex.getString();
 839                         if (!readUIFile(file))
 840                                 return false;
 841                         break;
 842                 }
 843                 case ui_menuset:
 844                         menubackend.read(lex);
 845                         break;
 846
 847                 case ui_toolbar:
 848                         toolbarbackend.read(lex);
 849                         break;
 850
 851                 case ui_toolbars:
 852                         toolbarbackend.readToolbars(lex);
 853                         break;
 854
 855                 default:
 856                         if (!rtrim(lex.getString()).empty())
 857                                 lex.printError("LyX::ReadUIFile: "
 858                                                "Unknown menu tag: `$$Token'");
 859                         break;
 860                 }
 861         }
 862         return true;
 863 }
 864
 865
 866 // Read the languages file `name'
 867 bool LyX::readLanguagesFile(string const & name)
 868 {
 869         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 870
 871         string const lang_path = libFileSearch(string(), name);
 872         if (lang_path.empty()) {
 873                 showFileError(name);
 874                 return false;
 875         }
 876         languages.read(lang_path);
 877         return true;
 878 }
 879
 880
 881 // Read the encodings file `name'
 882 bool LyX::readEncodingsFile(string const & name)
 883 {
 884         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 885
 886         string const enc_path = libFileSearch(string(), name);
 887         if (enc_path.empty()) {
 888                 showFileError(name);
 889                 return false;
 890         }
 891         encodings.read(enc_path);
 892         return true;
 893 }
 894
 895
 896 namespace {
 897
 898 bool is_gui = true;
 899 string batch;
 900
 901 /// return the the number of arguments consumed
 902 typedef boost::function<int(string const &, string const &)> cmd_helper;
 903
 904 int parse_dbg(string const & arg, string const &)
 905 {
 906         if (arg.empty()) {
 907                 lyxerr << lyx::to_utf8(_("List of supported debug flags:")) << endl;
 908                 Debug::showTags(lyxerr);
 909                 exit(0);
 910         }
 911         lyxerr << lyx::to_utf8(bformat(_("Setting debug level to %1$s"), lyx::from_utf8(arg))) << endl;
 912
 913         lyxerr.level(Debug::value(arg));
 914         Debug::showLevel(lyxerr, lyxerr.level());
 915         return 1;
 916 }
 917
 918
 919 int parse_help(string const &, string const &)
 920 {
 921         lyxerr <<
 922                 lyx::to_utf8(_("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 923                   "Command line switches (case sensitive):\n"
 924                   "\t-help              summarize LyX usage\n"
 925                   "\t-userdir dir       set user directory to dir\n"
 926                   "\t-sysdir dir        set system directory to dir\n"
 927                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 928                   "\t-dbg feature[,feature]...\n"
 929                   "                  select the features to debug.\n"
 930                   "                  Type `lyx -dbg' to see the list of features\n"
 931                   "\t-x [--execute] command\n"
 932                   "                  where command is a lyx command.\n"
 933                   "\t-e [--export] fmt\n"
 934                   "                  where fmt is the export format of choice.\n"
 935                   "\t-i [--import] fmt file.xxx\n"
 936                   "                  where fmt is the import format of choice\n"
 937                   "                  and file.xxx is the file to be imported.\n"
 938                   "\t-version        summarize version and build info\n"
 939                                "Check the LyX man page for more details.")) << endl;
 940         exit(0);
 941         return 0;
 942 }
 943
 944 int parse_version(string const &, string const &)
 945 {
 946         lyxerr << "LyX " << lyx_version
 947                << " (" << lyx_release_date << ")" << endl;
 948         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 949
 950         lyxerr << lyx_version_info << endl;
 951         exit(0);
 952         return 0;
 953 }
 954
 955 int parse_sysdir(string const & arg, string const &)
 956 {
 957         if (arg.empty()) {
 958                 lyxerr << lyx::to_utf8(_("Missing directory for -sysdir switch")) << endl;
 959                 exit(1);
 960         }
 961         cl_system_support = arg;
 962         return 1;
 963 }
 964
 965 int parse_userdir(string const & arg, string const &)
 966 {
 967         if (arg.empty()) {
 968                 lyxerr << lyx::to_utf8(_("Missing directory for -userdir switch")) << endl;
 969                 exit(1);
 970         }
 971         cl_user_support = arg;
 972         return 1;
 973 }
 974
 975 int parse_execute(string const & arg, string const &)
 976 {
 977         if (arg.empty()) {
 978                 lyxerr << lyx::to_utf8(_("Missing command string after --execute switch")) << endl;
 979                 exit(1);
 980         }
 981         batch = arg;
 982         return 1;
 983 }
 984
 985 int parse_export(string const & type, string const &)
 986 {
 987         if (type.empty()) {
 988                 lyxerr << lyx::to_utf8(_("Missing file type [eg latex, ps...] after "
 989                                          "--export switch")) << endl;
 990                 exit(1);
 991         }
 992         batch = "buffer-export " + type;
 993         is_gui = false;
 994         return 1;
 995 }
 996
 997 int parse_import(string const & type, string const & file)
 998 {
 999         if (type.empty()) {
1000                 lyxerr << lyx::to_utf8(_("Missing file type [eg latex, ps...] after "
1001                                          "--import switch")) << endl;
1002                 exit(1);
1003         }
1004         if (file.empty()) {
1005                 lyxerr << lyx::to_utf8(_("Missing filename for --import")) << endl;
1006                 exit(1);
1007         }
1008
1009         batch = "buffer-import " + type + ' ' + file;
1010         return 2;
1011 }
1012
1013 } // namespace anon
1014
1015
1016 bool LyX::easyParse(int & argc, char * argv[])
1017 {
1018         std::map<string, cmd_helper> cmdmap;
1019
1020         cmdmap["-dbg"] = parse_dbg;
1021         cmdmap["-help"] = parse_help;
1022         cmdmap["--help"] = parse_help;
1023         cmdmap["-version"] = parse_version;
1024         cmdmap["--version"] = parse_version;
1025         cmdmap["-sysdir"] = parse_sysdir;
1026         cmdmap["-userdir"] = parse_userdir;
1027         cmdmap["-x"] = parse_execute;
1028         cmdmap["--execute"] = parse_execute;
1029         cmdmap["-e"] = parse_export;
1030         cmdmap["--export"] = parse_export;
1031         cmdmap["-i"] = parse_import;
1032         cmdmap["--import"] = parse_import;
1033
1034         for (int i = 1; i < argc; ++i) {
1035                 std::map<string, cmd_helper>::const_iterator it
1036                         = cmdmap.find(argv[i]);
1037
1038                 // check for X11 -geometry option
1039                 if (lyx::support::compare(argv[i], "-geometry") == 0)
1040                         geometryOption_ = true;
1041
1042                 // don't complain if not found - may be parsed later
1043                 if (it == cmdmap.end())
1044                         continue;
1045
1046                 string arg((i + 1 < argc) ? argv[i + 1] : "");
1047                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
1048
1049                 int const remove = 1 + it->second(arg, arg2);
1050
1051                 // Now, remove used arguments by shifting
1052                 // the following ones remove places down.
1053                 argc -= remove;
1054                 for (int j = i; j < argc; ++j)
1055                         argv[j] = argv[j + remove];
1056                 --i;
1057         }
1058
1059         batch_command = batch;
1060
1061         return is_gui;
1062 }