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 "lyxserver.h"
  38 #include "lyxtextclasslist.h"
  39 #include "MenuBackend.h"
  40 #include "mover.h"
  41 #include "ToolbarBackend.h"
  42
  43 #include "frontends/Alert.h"
  44 #include "frontends/Application.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/fontutils.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 using std::for_each;
  87
  88 #ifndef CXX_GLOBAL_CSTD
  89 using std::exit;
  90 using std::signal;
  91 using std::system;
  92 #endif
  93
  94
  95 // convenient to have it here.
  96 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  97
  98 namespace {
  99
 100 // Filled with the command line arguments "foo" of "-sysdir foo" or
 101 // "-userdir foo".
 102 string cl_system_support;
 103 string cl_user_support;
 104
 105
 106 void lyx_exit(int status)
 107 {
 108         // FIXME: We should not directly call exit(), since it only
 109         // guarantees a return to the system, no application cleanup.
 110         // This may cause troubles with not executed destructors.
 111         if (lyx_gui::use_gui) {
 112                 theApp->exit(status);
 113                 // Restore original font resources after Application is destroyed.
 114                 lyx::support::restoreFontResources();
 115         }
 116
 117         exit(status);
 118 }
 119
 120
 121 void showFileError(string const & error)
 122 {
 123         Alert::warning(_("Could not read configuration file"),
 124                        bformat(_("Error while reading the configuration file\n%1$s.\n"
 125                            "Please check your installation."), lyx::from_utf8(error)));
 126 }
 127
 128
 129 void reconfigureUserLyXDir()
 130 {
 131         string const configure_command = package().configure_command();
 132
 133         lyxerr << lyx::to_utf8(_("LyX: reconfiguring user directory")) << endl;
 134         lyx::support::Path p(package().user_support());
 135         Systemcall one;
 136         one.startscript(Systemcall::Wait, configure_command);
 137         lyxerr << "LyX: " << lyx::to_utf8(_("Done!")) << endl;
 138 }
 139
 140 } // namespace anon
 141
 142
 143 boost::scoped_ptr<LyX> LyX::singleton_;
 144
 145 int LyX::exec(int & argc, char * argv[])
 146 {
 147         BOOST_ASSERT(!singleton_.get());
 148         // We must return from this before launching the gui so that
 149         // other parts of the code can access singleton_ through
 150         // LyX::ref and LyX::cref.
 151         singleton_.reset(new LyX);
 152         // Start the real execution loop.
 153         return singleton_->priv_exec(argc, argv);
 154 }
 155
 156
 157 LyX & LyX::ref()
 158 {
 159         BOOST_ASSERT(singleton_.get());
 160         return *singleton_.get();
 161 }
 162
 163
 164 LyX const & LyX::cref()
 165 {
 166         BOOST_ASSERT(singleton_.get());
 167         return *singleton_.get();
 168 }
 169
 170
 171 LyX::LyX()
 172         : first_start(false), geometryOption_(false)
 173 {}
 174
 175
 176 lyx::Session & LyX::session()
 177 {
 178         BOOST_ASSERT(session_.get());
 179         return *session_.get();
 180 }
 181
 182
 183 lyx::Session const & LyX::session() const
 184 {
 185         BOOST_ASSERT(session_.get());
 186         return *session_.get();
 187 }
 188
 189
 190 void LyX::addLyXView(LyXView * lyxview)
 191 {
 192         views_.push_back(lyxview);
 193 }
 194
 195
 196 Buffer const * const LyX::updateInset(InsetBase const * inset) const
 197 {
 198         if (!inset)
 199                 return 0;
 200
 201         Buffer const * buffer_ptr = 0;
 202         ViewList::const_iterator it = views_.begin();
 203         ViewList::const_iterator const end = views_.end();
 204         for (; it != end; ++it) {
 205                 Buffer const * ptr = (*it)->updateInset(inset);
 206                 if (ptr)
 207                         buffer_ptr = ptr;
 208         }
 209         return buffer_ptr;
 210 }
 211
 212
 213 int LyX::priv_exec(int & argc, char * argv[])
 214 {
 215         // Here we need to parse the command line. At least
 216         // we need to parse for "-dbg" and "-help"
 217         lyx_gui::use_gui = easyParse(argc, argv);
 218
 219         lyx::support::init_package(argv[0], cl_system_support, cl_user_support,
 220                                    lyx::support::top_build_dir_is_one_level_up);
 221
 222         // Start the real execution loop.
 223         if (lyx_gui::use_gui) {
 224                 // Force adding of font path _before_ Application is initialized
 225                 lyx::support::addFontResources();
 226                 return lyx_gui::exec(argc, argv);
 227         }
 228         else
 229                 return exec2(argc, argv);
 230 }
 231
 232
 233 int LyX::exec2(int & argc, char * argv[])
 234 {
 235         // check for any spurious extra arguments
 236         // other than documents
 237         for (int argi = 1; argi < argc ; ++argi) {
 238                 if (argv[argi][0] == '-') {
 239                         lyxerr << lyx::to_utf8(
 240                                 bformat(_("Wrong command line option `%1$s'. Exiting."),
 241                                 lyx::from_utf8(argv[argi]))) << endl;
 242                         return EXIT_FAILURE;
 243                 }
 244         }
 245
 246         // Initialization of LyX (reads lyxrc and more)
 247         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 248         bool const success = init();
 249         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 250         if (!success)
 251                 return EXIT_FAILURE;
 252
 253         if (lyx_gui::use_gui)
 254                 lyx_gui::parse_lyxrc();
 255
 256         vector<string> files;
 257
 258         for (int argi = argc - 1; argi >= 1; --argi)
 259                 files.push_back(os::internal_path(argv[argi]));
 260
 261         if (first_start)
 262                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 263
 264         // Execute batch commands if available
 265         if (!batch_command.empty()) {
 266
 267                 lyxerr[Debug::INIT] << "About to handle -x '"
 268                        << batch_command << '\'' << endl;
 269
 270                 Buffer * last_loaded = 0;
 271
 272                 vector<string>::const_iterator it = files.begin();
 273                 vector<string>::const_iterator end = files.end();
 274
 275                 for (; it != end; ++it) {
 276                         // get absolute path of file and add ".lyx" to
 277                         // the filename if necessary
 278                         string s = fileSearch(string(), *it, "lyx");
 279                         if (s.empty()) {
 280                                 Buffer * const b = newFile(*it, string(), true);
 281                                 if (b)
 282                                         last_loaded = b;
 283                         } else {
 284                                 Buffer * buf = theApp->bufferList().newBuffer(s, false);
 285                                 if (loadLyXFile(buf, s)) {
 286                                         last_loaded = buf;
 287                                         ErrorList const & el = buf->errorList("Parse");
 288                                         if (!el.empty())
 289                                                 for_each(el.begin(), el.end(),
 290                                                         boost::bind(&LyX::printError, this, _1));
 291                                 }
 292                                 else
 293                                         theApp->bufferList().release(buf);
 294                         }
 295                 }
 296
 297                 // try to dispatch to last loaded buffer first
 298                 if (last_loaded) {
 299                         bool success = false;
 300                         if (last_loaded->dispatch(batch_command, &success)) {
 301                                 quitLyX(false);
 302                                 return !success;
 303                         }
 304                 }
 305                 files.clear(); // the files are already loaded
 306         }
 307
 308         if (lyx_gui::use_gui) {
 309                 // determine windows size and position, from lyxrc and/or session
 310                 // initial geometry
 311                 unsigned int width = 690;
 312                 unsigned int height = 510;
 313                 bool maximize = false;
 314                 // first try lyxrc
 315                 if (lyxrc.geometry_width != 0 && lyxrc.geometry_height != 0 ) {
 316                         width = lyxrc.geometry_width;
 317                         height = lyxrc.geometry_height;
 318                 }
 319                 // if lyxrc returns (0,0), then use session info
 320                 else {
 321                         string val = session().loadSessionInfo("WindowWidth");
 322                         if (!val.empty())
 323                                 width = convert<unsigned int>(val);
 324                         val = session().loadSessionInfo("WindowHeight");
 325                         if (!val.empty())
 326                                 height = convert<unsigned int>(val);
 327                         if (session().loadSessionInfo("WindowIsMaximized") == "yes")
 328                                 maximize = true;
 329                 }
 330                 // if user wants to restore window position
 331                 int posx = -1;
 332                 int posy = -1;
 333                 if (lyxrc.geometry_xysaved) {
 334                         string val = session().loadSessionInfo("WindowPosX");
 335                         if (!val.empty())
 336                                 posx = convert<int>(val);
 337                         val = session().loadSessionInfo("WindowPosY");
 338                         if (!val.empty())
 339                                 posy = convert<int>(val);
 340                 }
 341
 342                 if (geometryOption_) {
 343                         width = 0;
 344                         height = 0;
 345                 }
 346                 // create the main window
 347                 LyXView * view = &theApp->createView(width, height, posx, posy, maximize);
 348                 ref().addLyXView(view);
 349
 350                 // load files
 351                 for_each(files.begin(), files.end(),
 352                         bind(&LyXView::loadLyXFile, view, _1, true));
 353
 354                 // if a file is specified, I assume that user wants to edit *that* file
 355                 if (files.empty() && lyxrc.load_session) {
 356                         vector<string> const & lastopened = session_->lastOpenedFiles();
 357                         // do not add to the lastfile list since these files are restored from
 358                         // last seesion, and should be already there (regular files), or should
 359                         // not be added at all (help files).
 360                         for_each(lastopened.begin(), lastopened.end(),
 361                                 bind(&LyXView::loadLyXFile, view, _1, false));
 362                 }
 363                 // clear this list to save a few bytes of RAM
 364                 session_->clearLastOpenedFiles();
 365
 366                 return theApp->start(batch_command);
 367         } else {
 368                 // Something went wrong above
 369                 quitLyX(false);
 370                 return EXIT_FAILURE;
 371         }
 372 }
 373
 374
 375 /*
 376 Signals and Windows
 377 ===================
 378 The SIGHUP signal does not exist on Windows and does not need to be handled.
 379
 380 Windows handles SIGFPE and SIGSEGV signals as expected.
 381
 382 Cntl+C interrupts (mapped to SIGINT by Windows' POSIX compatability layer)
 383 cause a new thread to be spawned. This may well result in unexpected
 384 behaviour by the single-threaded LyX.
 385
 386 SIGTERM signals will come only from another process actually sending
 387 that signal using 'raise' in Windows' POSIX compatability layer. It will
 388 not come from the general "terminate process" methods that everyone
 389 actually uses (and which can't be trapped). Killing an app 'politely' on
 390 Windows involves first sending a WM_CLOSE message, something that is
 391 caught already by the Qt frontend.
 392
 393 For more information see:
 394
 395 http://aspn.activestate.com/ASPN/Mail/Message/ActiveTcl/2034055
 396 ...signals are mostly useless on Windows for a variety of reasons that are
 397 Windows specific...
 398
 399 'UNIX Application Migration Guide, Chapter 9'
 400 http://msdn.microsoft.com/library/en-us/dnucmg/html/UCMGch09.asp
 401
 402 'How To Terminate an Application "Cleanly" in Win32'
 403 http://support.microsoft.com/default.aspx?scid=kb;en-us;178893
 404 */
 405 extern "C" {
 406
 407 static void error_handler(int err_sig)
 408 {
 409         // Throw away any signals other than the first one received.
 410         static sig_atomic_t handling_error = false;
 411         if (handling_error)
 412                 return;
 413         handling_error = true;
 414
 415         // We have received a signal indicating a fatal error, so
 416         // try and save the data ASAP.
 417         LyX::cref().emergencyCleanup();
 418
 419         // These lyxerr calls may or may not work:
 420
 421         // Signals are asynchronous, so the main program may be in a very
 422         // fragile state when a signal is processed and thus while a signal
 423         // handler function executes.
 424         // In general, therefore, we should avoid performing any
 425         // I/O operations or calling most library and system functions from
 426         // signal handlers.
 427
 428         // This shouldn't matter here, however, as we've already invoked
 429         // emergencyCleanup.
 430         switch (err_sig) {
 431 #ifdef SIGHUP
 432         case SIGHUP:
 433                 lyxerr << "\nlyx: SIGHUP signal caught\nBye." << endl;
 434                 break;
 435 #endif
 436         case SIGFPE:
 437                 lyxerr << "\nlyx: SIGFPE signal caught\nBye." << endl;
 438                 break;
 439         case SIGSEGV:
 440                 lyxerr << "\nlyx: SIGSEGV signal caught\n"
 441                           "Sorry, you have found a bug in LyX. "
 442                           "Please read the bug-reporting instructions "
 443                           "in Help->Introduction and send us a bug report, "
 444                           "if necessary. Thanks !\nBye." << endl;
 445                 break;
 446         case SIGINT:
 447         case SIGTERM:
 448                 // no comments
 449                 break;
 450         }
 451
 452         // Deinstall the signal handlers
 453 #ifdef SIGHUP
 454         signal(SIGHUP, SIG_DFL);
 455 #endif
 456         signal(SIGINT, SIG_DFL);
 457         signal(SIGFPE, SIG_DFL);
 458         signal(SIGSEGV, SIG_DFL);
 459         signal(SIGTERM, SIG_DFL);
 460
 461 #ifdef SIGHUP
 462         if (err_sig == SIGSEGV ||
 463             (err_sig != SIGHUP && !getEnv("LYXDEBUG").empty()))
 464 #else
 465         if (err_sig == SIGSEGV || !getEnv("LYXDEBUG").empty())
 466 #endif
 467                 lyx::support::abort();
 468         exit(0);
 469 }
 470
 471 }
 472
 473
 474 void LyX::printError(ErrorItem const & ei)
 475 {
 476         docstring tmp = _("LyX: ") + ei.error + lyx::char_type(':')
 477                 + ei.description;
 478         std::cerr << lyx::to_utf8(tmp) << std::endl;
 479 }
 480
 481
 482 bool LyX::init()
 483 {
 484 #ifdef SIGHUP
 485         signal(SIGHUP, error_handler);
 486 #endif
 487         signal(SIGFPE, error_handler);
 488         signal(SIGSEGV, error_handler);
 489         signal(SIGINT, error_handler);
 490         signal(SIGTERM, error_handler);
 491         // SIGPIPE can be safely ignored.
 492
 493         lyxrc.tempdir_path = package().temp_dir();
 494         lyxrc.document_path = package().document_dir();
 495
 496         if (lyxrc.template_path.empty()) {
 497                 lyxrc.template_path = addPath(package().system_support(),
 498                                               "templates");
 499         }
 500
 501         if (lyxrc.roman_font_name.empty())
 502                 lyxrc.roman_font_name =
 503                         lyx_gui::use_gui? theApp->romanFontName(): "serif";
 504
 505         if (lyxrc.sans_font_name.empty())
 506                 lyxrc.sans_font_name =
 507                         lyx_gui::use_gui? theApp->sansFontName(): "sans";
 508
 509         if (lyxrc.typewriter_font_name.empty())
 510                 lyxrc.typewriter_font_name =
 511                         lyx_gui::use_gui? theApp->typewriterFontName(): "monospace";
 512
 513         //
 514         // Read configuration files
 515         //
 516
 517         // This one may have been distributed along with LyX.
 518         if (!readRcFile("lyxrc.dist"))
 519                 return false;
 520
 521         // Set the PATH correctly.
 522 #if !defined (USE_POSIX_PACKAGING)
 523         // Add the directory containing the LyX executable to the path
 524         // so that LyX can find things like tex2lyx.
 525         if (package().build_support().empty())
 526                 prependEnvPath("PATH", package().binary_dir());
 527 #endif
 528         if (!lyxrc.path_prefix.empty())
 529                 prependEnvPath("PATH", lyxrc.path_prefix);
 530
 531         // Check that user LyX directory is ok.
 532         if (queryUserLyXDir(package().explicit_user_support()))
 533                 reconfigureUserLyXDir();
 534
 535         // no need for a splash when there is no GUI
 536         if (!lyx_gui::use_gui) {
 537                 first_start = false;
 538         }
 539
 540         // This one is generated in user_support directory by lib/configure.py.
 541         if (!readRcFile("lyxrc.defaults"))
 542                 return false;
 543
 544         // Query the OS to know what formats are viewed natively
 545         formats.setAutoOpen();
 546
 547         system_lyxrc = lyxrc;
 548         system_formats = formats;
 549         system_converters = converters;
 550         system_movers = movers;
 551         system_lcolor = lcolor;
 552
 553         // This one is edited through the preferences dialog.
 554         if (!readRcFile("preferences"))
 555                 return false;
 556
 557         if (!readEncodingsFile("encodings"))
 558                 return false;
 559         if (!readLanguagesFile("languages"))
 560                 return false;
 561
 562         // Load the layouts
 563         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 564         if (!LyXSetStyle())
 565                 return false;
 566
 567         if (lyx_gui::use_gui) {
 568                 // Set up bindings
 569                 toplevel_keymap.reset(new kb_keymap);
 570                 defaultKeyBindings(toplevel_keymap.get());
 571                 toplevel_keymap->read(lyxrc.bind_file);
 572
 573                 // Read menus
 574                 if (!readUIFile(lyxrc.ui_file))
 575                         return false;
 576         }
 577
 578         if (lyxerr.debugging(Debug::LYXRC))
 579                 lyxrc.print();
 580
 581         os::windows_style_tex_paths(lyxrc.windows_style_tex_paths);
 582         if (!lyxrc.path_prefix.empty())
 583                 prependEnvPath("PATH", lyxrc.path_prefix);
 584
 585         if (fs::exists(lyxrc.document_path) &&
 586             fs::is_directory(lyxrc.document_path))
 587                 package().document_dir() = lyxrc.document_path;
 588
 589         package().temp_dir() = createLyXTmpDir(lyxrc.tempdir_path);
 590         if (package().temp_dir().empty()) {
 591                 Alert::error(_("Could not create temporary directory"),
 592                              bformat(_("Could not create a temporary directory in\n"
 593                                                     "%1$s. Make sure that this\n"
 594                                                     "path exists and is writable and try again."),
 595                                      lyx::from_utf8(lyxrc.tempdir_path)));
 596                 // createLyXTmpDir() tries sufficiently hard to create a
 597                 // usable temp dir, so the probability to come here is
 598                 // close to zero. We therefore don't try to overcome this
 599                 // problem with e.g. asking the user for a new path and
 600                 // trying again but simply exit.
 601                 return false;
 602         }
 603
 604         if (lyxerr.debugging(Debug::INIT)) {
 605                 lyxerr << "LyX tmp dir: `" << package().temp_dir() << '\'' << endl;
 606         }
 607
 608         lyxerr[Debug::INIT] << "Reading session information '.lyx/session'..." << endl;
 609         session_.reset(new lyx::Session(lyxrc.num_lastfiles));
 610         return true;
 611 }
 612
 613
 614 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 615 {
 616         kbmap->bind("Right", FuncRequest(LFUN_CHAR_FORWARD));
 617         kbmap->bind("Left", FuncRequest(LFUN_CHAR_BACKWARD));
 618         kbmap->bind("Up", FuncRequest(LFUN_UP));
 619         kbmap->bind("Down", FuncRequest(LFUN_DOWN));
 620
 621         kbmap->bind("Tab", FuncRequest(LFUN_CELL_FORWARD));
 622         kbmap->bind("C-Tab", FuncRequest(LFUN_CELL_SPLIT));
 623         kbmap->bind("~S-ISO_Left_Tab", FuncRequest(LFUN_CELL_BACKWARD));
 624         kbmap->bind("~S-BackTab", FuncRequest(LFUN_CELL_BACKWARD));
 625
 626         kbmap->bind("Home", FuncRequest(LFUN_LINE_BEGIN));
 627         kbmap->bind("End", FuncRequest(LFUN_LINE_END));
 628         kbmap->bind("Prior", FuncRequest(LFUN_SCREEN_UP));
 629         kbmap->bind("Next", FuncRequest(LFUN_SCREEN_DOWN));
 630
 631         kbmap->bind("Return", FuncRequest(LFUN_BREAK_PARAGRAPH));
 632         //kbmap->bind("~C-~S-~M-nobreakspace", FuncRequest(LFUN_PROTECTEDSPACE));
 633
 634         kbmap->bind("Delete", FuncRequest(LFUN_CHAR_DELETE_FORWARD));
 635         kbmap->bind("BackSpace", FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
 636
 637         // kbmap->bindings to enable the use of the numeric keypad
 638         // e.g. Num Lock set
 639         //kbmap->bind("KP_0", FuncRequest(LFUN_SELF_INSERT));
 640         //kbmap->bind("KP_Decimal", FuncRequest(LFUN_SELF_INSERT));
 641         kbmap->bind("KP_Enter", FuncRequest(LFUN_BREAK_PARAGRAPH));
 642         //kbmap->bind("KP_1", FuncRequest(LFUN_SELF_INSERT));
 643         //kbmap->bind("KP_2", FuncRequest(LFUN_SELF_INSERT));
 644         //kbmap->bind("KP_3", FuncRequest(LFUN_SELF_INSERT));
 645         //kbmap->bind("KP_4", FuncRequest(LFUN_SELF_INSERT));
 646         //kbmap->bind("KP_5", FuncRequest(LFUN_SELF_INSERT));
 647         //kbmap->bind("KP_6", FuncRequest(LFUN_SELF_INSERT));
 648         //kbmap->bind("KP_Add", FuncRequest(LFUN_SELF_INSERT));
 649         //kbmap->bind("KP_7", FuncRequest(LFUN_SELF_INSERT));
 650         //kbmap->bind("KP_8", FuncRequest(LFUN_SELF_INSERT));
 651         //kbmap->bind("KP_9", FuncRequest(LFUN_SELF_INSERT));
 652         //kbmap->bind("KP_Divide", FuncRequest(LFUN_SELF_INSERT));
 653         //kbmap->bind("KP_Multiply", FuncRequest(LFUN_SELF_INSERT));
 654         //kbmap->bind("KP_Subtract", FuncRequest(LFUN_SELF_INSERT));
 655         kbmap->bind("KP_Right", FuncRequest(LFUN_CHAR_FORWARD));
 656         kbmap->bind("KP_Left", FuncRequest(LFUN_CHAR_BACKWARD));
 657         kbmap->bind("KP_Up", FuncRequest(LFUN_UP));
 658         kbmap->bind("KP_Down", FuncRequest(LFUN_DOWN));
 659         kbmap->bind("KP_Home", FuncRequest(LFUN_LINE_BEGIN));
 660         kbmap->bind("KP_End", FuncRequest(LFUN_LINE_END));
 661         kbmap->bind("KP_Prior", FuncRequest(LFUN_SCREEN_UP));
 662         kbmap->bind("KP_Next", FuncRequest(LFUN_SCREEN_DOWN));
 663 }
 664
 665
 666 void LyX::emergencyCleanup() const
 667 {
 668         // what to do about tmpfiles is non-obvious. we would
 669         // like to delete any we find, but our lyxdir might
 670         // contain documents etc. which might be helpful on
 671         // a crash
 672
 673         theApp->bufferList().emergencyWriteAll();
 674         theApp->server().emergencyCleanup();
 675 }
 676
 677
 678 void LyX::deadKeyBindings(kb_keymap * kbmap)
 679 {
 680         // bindKeyings for transparent handling of deadkeys
 681         // The keysyms are gotten from XFree86 X11R6
 682         kbmap->bind("~C-~S-~M-dead_acute", FuncRequest(LFUN_ACCENT_ACUTE));
 683         kbmap->bind("~C-~S-~M-dead_breve", FuncRequest(LFUN_ACCENT_BREVE));
 684         kbmap->bind("~C-~S-~M-dead_caron", FuncRequest(LFUN_ACCENT_CARON));
 685         kbmap->bind("~C-~S-~M-dead_cedilla", FuncRequest(LFUN_ACCENT_CEDILLA));
 686         kbmap->bind("~C-~S-~M-dead_abovering", FuncRequest(LFUN_ACCENT_CIRCLE));
 687         kbmap->bind("~C-~S-~M-dead_circumflex", FuncRequest(LFUN_ACCENT_CIRCUMFLEX));
 688         kbmap->bind("~C-~S-~M-dead_abovedot", FuncRequest(LFUN_ACCENT_DOT));
 689         kbmap->bind("~C-~S-~M-dead_grave", FuncRequest(LFUN_ACCENT_GRAVE));
 690         kbmap->bind("~C-~S-~M-dead_doubleacute", FuncRequest(LFUN_ACCENT_HUNGARIAN_UMLAUT));
 691         kbmap->bind("~C-~S-~M-dead_macron", FuncRequest(LFUN_ACCENT_MACRON));
 692         // nothing with this name
 693         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_ACCENT_SPECIAL_CARON);
 694         kbmap->bind("~C-~S-~M-dead_tilde", FuncRequest(LFUN_ACCENT_TILDE));
 695         kbmap->bind("~C-~S-~M-dead_diaeresis", FuncRequest(LFUN_ACCENT_UMLAUT));
 696         // nothing with this name either...
 697         //kbmap->bind("~C-~S-~M-dead_underbar", FuncRequest(LFUN_ACCENT_UNDERBAR));
 698         kbmap->bind("~C-~S-~M-dead_belowdot", FuncRequest(LFUN_ACCENT_UNDERDOT));
 699         kbmap->bind("~C-~S-~M-dead_tie", FuncRequest(LFUN_ACCENT_TIE));
 700         kbmap->bind("~C-~S-~M-dead_ogonek",FuncRequest(LFUN_ACCENT_OGONEK));
 701 }
 702
 703
 704 namespace {
 705
 706 // return true if file does not exist or is older than configure.py.
 707 bool needsUpdate(string const & file)
 708 {
 709         static string const configure_script =
 710                 addName(package().system_support(), "configure.py");
 711         string const absfile =
 712                 addName(package().user_support(), file);
 713
 714         return (! fs::exists(absfile))
 715                 || (fs::last_write_time(configure_script)
 716                     > fs::last_write_time(absfile));
 717 }
 718
 719 }
 720
 721
 722 bool LyX::queryUserLyXDir(bool explicit_userdir)
 723 {
 724         // Does user directory exist?
 725         if (fs::exists(package().user_support()) &&
 726             fs::is_directory(package().user_support())) {
 727                 first_start = false;
 728
 729                 return needsUpdate("lyxrc.defaults")
 730                         || needsUpdate("textclass.lst")
 731                         || needsUpdate("packages.lst");
 732         }
 733
 734         first_start = !explicit_userdir;
 735
 736         // If the user specified explicitly a directory, ask whether
 737         // to create it. If the user says "no", then exit.
 738         if (explicit_userdir &&
 739             Alert::prompt(
 740                     _("Missing user LyX directory"),
 741                     bformat(_("You have specified a non-existent user "
 742                                            "LyX directory, %1$s.\n"
 743                                            "It is needed to keep your own configuration."),
 744                             lyx::from_utf8(package().user_support())),
 745                     1, 0,
 746                     _("&Create directory"),
 747                     _("&Exit LyX"))) {
 748                 lyxerr << lyx::to_utf8(_("No user LyX directory. Exiting.")) << endl;
 749                 lyx_exit(EXIT_FAILURE);
 750         }
 751
 752         lyxerr << lyx::to_utf8(bformat(_("LyX: Creating directory %1$s"),
 753                           lyx::from_utf8(package().user_support())))
 754                << endl;
 755
 756         if (!createDirectory(package().user_support(), 0755)) {
 757                 // Failed, so let's exit.
 758                 lyxerr << lyx::to_utf8(_("Failed to create directory. Exiting."))
 759                        << endl;
 760                 lyx_exit(EXIT_FAILURE);
 761         }
 762
 763         return true;
 764 }
 765
 766
 767 bool LyX::readRcFile(string const & name)
 768 {
 769         lyxerr[Debug::INIT] << "About to read " << name << "... ";
 770
 771         string const lyxrc_path = libFileSearch(string(), name);
 772         if (!lyxrc_path.empty()) {
 773
 774                 lyxerr[Debug::INIT] << "Found in " << lyxrc_path << endl;
 775
 776                 if (lyxrc.read(lyxrc_path) < 0) {
 777                         showFileError(name);
 778                         return false;
 779                 }
 780         } else
 781                 lyxerr[Debug::INIT] << "Not found." << lyxrc_path << endl;
 782         return true;
 783
 784 }
 785
 786
 787 // Read the ui file `name'
 788 bool LyX::readUIFile(string const & name)
 789 {
 790         enum Uitags {
 791                 ui_menuset = 1,
 792                 ui_toolbar,
 793                 ui_toolbars,
 794                 ui_include,
 795                 ui_last
 796         };
 797
 798         struct keyword_item uitags[ui_last - 1] = {
 799                 { "include", ui_include },
 800                 { "menuset", ui_menuset },
 801                 { "toolbar", ui_toolbar },
 802                 { "toolbars", ui_toolbars }
 803         };
 804
 805         // Ensure that a file is read only once (prevents include loops)
 806         static std::list<string> uifiles;
 807         std::list<string>::const_iterator it  = uifiles.begin();
 808         std::list<string>::const_iterator end = uifiles.end();
 809         it = std::find(it, end, name);
 810         if (it != end) {
 811                 lyxerr[Debug::INIT] << "UI file '" << name
 812                                     << "' has been read already. "
 813                                     << "Is this an include loop?"
 814                                     << endl;
 815                 return false;
 816         }
 817
 818         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 819
 820         string const ui_path = libFileSearch("ui", name, "ui");
 821
 822         if (ui_path.empty()) {
 823                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 824                 showFileError(name);
 825                 return false;
 826         }
 827         uifiles.push_back(name);
 828
 829         lyxerr[Debug::INIT] << "Found " << name
 830                             << " in " << ui_path << endl;
 831         LyXLex lex(uitags, ui_last - 1);
 832         lex.setFile(ui_path);
 833         if (!lex.isOK()) {
 834                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 835                        << endl;
 836         }
 837
 838         if (lyxerr.debugging(Debug::PARSER))
 839                 lex.printTable(lyxerr);
 840
 841         while (lex.isOK()) {
 842                 switch (lex.lex()) {
 843                 case ui_include: {
 844                         lex.next(true);
 845                         string const file = lex.getString();
 846                         if (!readUIFile(file))
 847                                 return false;
 848                         break;
 849                 }
 850                 case ui_menuset:
 851                         menubackend.read(lex);
 852                         break;
 853
 854                 case ui_toolbar:
 855                         toolbarbackend.read(lex);
 856                         break;
 857
 858                 case ui_toolbars:
 859                         toolbarbackend.readToolbars(lex);
 860                         break;
 861
 862                 default:
 863                         if (!rtrim(lex.getString()).empty())
 864                                 lex.printError("LyX::ReadUIFile: "
 865                                                "Unknown menu tag: `$$Token'");
 866                         break;
 867                 }
 868         }
 869         return true;
 870 }
 871
 872
 873 // Read the languages file `name'
 874 bool LyX::readLanguagesFile(string const & name)
 875 {
 876         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 877
 878         string const lang_path = libFileSearch(string(), name);
 879         if (lang_path.empty()) {
 880                 showFileError(name);
 881                 return false;
 882         }
 883         languages.read(lang_path);
 884         return true;
 885 }
 886
 887
 888 // Read the encodings file `name'
 889 bool LyX::readEncodingsFile(string const & name)
 890 {
 891         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 892
 893         string const enc_path = libFileSearch(string(), name);
 894         if (enc_path.empty()) {
 895                 showFileError(name);
 896                 return false;
 897         }
 898         encodings.read(enc_path);
 899         return true;
 900 }
 901
 902
 903 namespace {
 904
 905 bool is_gui = true;
 906 string batch;
 907
 908 /// return the the number of arguments consumed
 909 typedef boost::function<int(string const &, string const &)> cmd_helper;
 910
 911 int parse_dbg(string const & arg, string const &)
 912 {
 913         if (arg.empty()) {
 914                 lyxerr << lyx::to_utf8(_("List of supported debug flags:")) << endl;
 915                 Debug::showTags(lyxerr);
 916                 exit(0);
 917         }
 918         lyxerr << lyx::to_utf8(bformat(_("Setting debug level to %1$s"), lyx::from_utf8(arg))) << endl;
 919
 920         lyxerr.level(Debug::value(arg));
 921         Debug::showLevel(lyxerr, lyxerr.level());
 922         return 1;
 923 }
 924
 925
 926 int parse_help(string const &, string const &)
 927 {
 928         lyxerr <<
 929                 lyx::to_utf8(_("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 930                   "Command line switches (case sensitive):\n"
 931                   "\t-help              summarize LyX usage\n"
 932                   "\t-userdir dir       set user directory to dir\n"
 933                   "\t-sysdir dir        set system directory to dir\n"
 934                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 935                   "\t-dbg feature[,feature]...\n"
 936                   "                  select the features to debug.\n"
 937                   "                  Type `lyx -dbg' to see the list of features\n"
 938                   "\t-x [--execute] command\n"
 939                   "                  where command is a lyx command.\n"
 940                   "\t-e [--export] fmt\n"
 941                   "                  where fmt is the export format of choice.\n"
 942                   "\t-i [--import] fmt file.xxx\n"
 943                   "                  where fmt is the import format of choice\n"
 944                   "                  and file.xxx is the file to be imported.\n"
 945                   "\t-version        summarize version and build info\n"
 946                                "Check the LyX man page for more details.")) << endl;
 947         exit(0);
 948         return 0;
 949 }
 950
 951 int parse_version(string const &, string const &)
 952 {
 953         lyxerr << "LyX " << lyx_version
 954                << " (" << lyx_release_date << ")" << endl;
 955         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 956
 957         lyxerr << lyx_version_info << endl;
 958         exit(0);
 959         return 0;
 960 }
 961
 962 int parse_sysdir(string const & arg, string const &)
 963 {
 964         if (arg.empty()) {
 965                 lyxerr << lyx::to_utf8(_("Missing directory for -sysdir switch")) << endl;
 966                 exit(1);
 967         }
 968         cl_system_support = arg;
 969         return 1;
 970 }
 971
 972 int parse_userdir(string const & arg, string const &)
 973 {
 974         if (arg.empty()) {
 975                 lyxerr << lyx::to_utf8(_("Missing directory for -userdir switch")) << endl;
 976                 exit(1);
 977         }
 978         cl_user_support = arg;
 979         return 1;
 980 }
 981
 982 int parse_execute(string const & arg, string const &)
 983 {
 984         if (arg.empty()) {
 985                 lyxerr << lyx::to_utf8(_("Missing command string after --execute switch")) << endl;
 986                 exit(1);
 987         }
 988         batch = arg;
 989         return 1;
 990 }
 991
 992 int parse_export(string const & type, string const &)
 993 {
 994         if (type.empty()) {
 995                 lyxerr << lyx::to_utf8(_("Missing file type [eg latex, ps...] after "
 996                                          "--export switch")) << endl;
 997                 exit(1);
 998         }
 999         batch = "buffer-export " + type;
1000         is_gui = false;
1001         return 1;
1002 }
1003
1004 int parse_import(string const & type, string const & file)
1005 {
1006         if (type.empty()) {
1007                 lyxerr << lyx::to_utf8(_("Missing file type [eg latex, ps...] after "
1008                                          "--import switch")) << endl;
1009                 exit(1);
1010         }
1011         if (file.empty()) {
1012                 lyxerr << lyx::to_utf8(_("Missing filename for --import")) << endl;
1013                 exit(1);
1014         }
1015
1016         batch = "buffer-import " + type + ' ' + file;
1017         return 2;
1018 }
1019
1020 } // namespace anon
1021
1022
1023 bool LyX::easyParse(int & argc, char * argv[])
1024 {
1025         std::map<string, cmd_helper> cmdmap;
1026
1027         cmdmap["-dbg"] = parse_dbg;
1028         cmdmap["-help"] = parse_help;
1029         cmdmap["--help"] = parse_help;
1030         cmdmap["-version"] = parse_version;
1031         cmdmap["--version"] = parse_version;
1032         cmdmap["-sysdir"] = parse_sysdir;
1033         cmdmap["-userdir"] = parse_userdir;
1034         cmdmap["-x"] = parse_execute;
1035         cmdmap["--execute"] = parse_execute;
1036         cmdmap["-e"] = parse_export;
1037         cmdmap["--export"] = parse_export;
1038         cmdmap["-i"] = parse_import;
1039         cmdmap["--import"] = parse_import;
1040
1041         for (int i = 1; i < argc; ++i) {
1042                 std::map<string, cmd_helper>::const_iterator it
1043                         = cmdmap.find(argv[i]);
1044
1045                 // check for X11 -geometry option
1046                 if (lyx::support::compare(argv[i], "-geometry") == 0)
1047                         geometryOption_ = true;
1048
1049                 // don't complain if not found - may be parsed later
1050                 if (it == cmdmap.end())
1051                         continue;
1052
1053                 string arg((i + 1 < argc) ? argv[i + 1] : "");
1054                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
1055
1056                 int const remove = 1 + it->second(arg, arg2);
1057
1058                 // Now, remove used arguments by shifting
1059                 // the following ones remove places down.
1060                 argc -= remove;
1061                 for (int j = i; j < argc; ++j)
1062                         argv[j] = argv[j + remove];
1063                 --i;
1064         }
1065
1066         batch_command = batch;
1067
1068         return is_gui;
1069 }