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         vector<string> files;
 254
 255         for (int argi = argc - 1; argi >= 1; --argi)
 256                 files.push_back(os::internal_path(argv[argi]));
 257
 258         if (first_start)
 259                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 260
 261         // Execute batch commands if available
 262         if (!batch_command.empty()) {
 263
 264                 lyxerr[Debug::INIT] << "About to handle -x '"
 265                        << batch_command << '\'' << endl;
 266
 267                 Buffer * last_loaded = 0;
 268
 269                 vector<string>::const_iterator it = files.begin();
 270                 vector<string>::const_iterator end = files.end();
 271
 272                 for (; it != end; ++it) {
 273                         // get absolute path of file and add ".lyx" to
 274                         // the filename if necessary
 275                         string s = fileSearch(string(), *it, "lyx");
 276                         if (s.empty()) {
 277                                 Buffer * const b = newFile(*it, string(), true);
 278                                 if (b)
 279                                         last_loaded = b;
 280                         } else {
 281                                 Buffer * buf = theApp->bufferList().newBuffer(s, false);
 282                                 if (loadLyXFile(buf, s)) {
 283                                         last_loaded = buf;
 284                                         ErrorList const & el = buf->errorList("Parse");
 285                                         if (!el.empty())
 286                                                 for_each(el.begin(), el.end(),
 287                                                         boost::bind(&LyX::printError, this, _1));
 288                                 }
 289                                 else
 290                                         theApp->bufferList().release(buf);
 291                         }
 292                 }
 293
 294                 // try to dispatch to last loaded buffer first
 295                 if (last_loaded) {
 296                         bool success = false;
 297                         if (last_loaded->dispatch(batch_command, &success)) {
 298                                 quitLyX(false);
 299                                 return !success;
 300                         }
 301                 }
 302                 files.clear(); // the files are already loaded
 303         }
 304
 305         if (lyx_gui::use_gui) {
 306                 // determine windows size and position, from lyxrc and/or session
 307                 // initial geometry
 308                 unsigned int width = 690;
 309                 unsigned int height = 510;
 310                 bool maximize = false;
 311                 // first try lyxrc
 312                 if (lyxrc.geometry_width != 0 && lyxrc.geometry_height != 0 ) {
 313                         width = lyxrc.geometry_width;
 314                         height = lyxrc.geometry_height;
 315                 }
 316                 // if lyxrc returns (0,0), then use session info
 317                 else {
 318                         string val = session().loadSessionInfo("WindowWidth");
 319                         if (!val.empty())
 320                                 width = convert<unsigned int>(val);
 321                         val = session().loadSessionInfo("WindowHeight");
 322                         if (!val.empty())
 323                                 height = convert<unsigned int>(val);
 324                         if (session().loadSessionInfo("WindowIsMaximized") == "yes")
 325                                 maximize = true;
 326                 }
 327                 // if user wants to restore window position
 328                 int posx = -1;
 329                 int posy = -1;
 330                 if (lyxrc.geometry_xysaved) {
 331                         string val = session().loadSessionInfo("WindowPosX");
 332                         if (!val.empty())
 333                                 posx = convert<int>(val);
 334                         val = session().loadSessionInfo("WindowPosY");
 335                         if (!val.empty())
 336                                 posy = convert<int>(val);
 337                 }
 338
 339                 if (geometryOption_) {
 340                         width = 0;
 341                         height = 0;
 342                 }
 343                 // create the main window
 344                 LyXView * view = &theApp->createView(width, height, posx, posy, maximize);
 345                 ref().addLyXView(view);
 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 theApp->start(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 =
 500                         lyx_gui::use_gui? theApp->romanFontName(): "serif";
 501
 502         if (lyxrc.sans_font_name.empty())
 503                 lyxrc.sans_font_name =
 504                         lyx_gui::use_gui? theApp->sansFontName(): "sans";
 505
 506         if (lyxrc.typewriter_font_name.empty())
 507                 lyxrc.typewriter_font_name =
 508                         lyx_gui::use_gui? theApp->typewriterFontName(): "monospace";
 509
 510         //
 511         // Read configuration files
 512         //
 513
 514         // This one may have been distributed along with LyX.
 515         if (!readRcFile("lyxrc.dist"))
 516                 return false;
 517
 518         // Set the PATH correctly.
 519 #if !defined (USE_POSIX_PACKAGING)
 520         // Add the directory containing the LyX executable to the path
 521         // so that LyX can find things like tex2lyx.
 522         if (package().build_support().empty())
 523                 prependEnvPath("PATH", package().binary_dir());
 524 #endif
 525         if (!lyxrc.path_prefix.empty())
 526                 prependEnvPath("PATH", lyxrc.path_prefix);
 527
 528         // Check that user LyX directory is ok.
 529         if (queryUserLyXDir(package().explicit_user_support()))
 530                 reconfigureUserLyXDir();
 531
 532         // no need for a splash when there is no GUI
 533         if (!lyx_gui::use_gui) {
 534                 first_start = false;
 535         }
 536
 537         // This one is generated in user_support directory by lib/configure.py.
 538         if (!readRcFile("lyxrc.defaults"))
 539                 return false;
 540
 541         // Query the OS to know what formats are viewed natively
 542         formats.setAutoOpen();
 543
 544         system_lyxrc = lyxrc;
 545         system_formats = formats;
 546         system_converters = converters;
 547         system_movers = movers;
 548         system_lcolor = lcolor;
 549
 550         // This one is edited through the preferences dialog.
 551         if (!readRcFile("preferences"))
 552                 return false;
 553
 554         if (!readEncodingsFile("encodings"))
 555                 return false;
 556         if (!readLanguagesFile("languages"))
 557                 return false;
 558
 559         // Load the layouts
 560         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 561         if (!LyXSetStyle())
 562                 return false;
 563
 564         if (lyx_gui::use_gui) {
 565                 // Set up bindings
 566                 toplevel_keymap.reset(new kb_keymap);
 567                 defaultKeyBindings(toplevel_keymap.get());
 568                 toplevel_keymap->read(lyxrc.bind_file);
 569
 570                 // Read menus
 571                 if (!readUIFile(lyxrc.ui_file))
 572                         return false;
 573         }
 574
 575         if (lyxerr.debugging(Debug::LYXRC))
 576                 lyxrc.print();
 577
 578         os::windows_style_tex_paths(lyxrc.windows_style_tex_paths);
 579         if (!lyxrc.path_prefix.empty())
 580                 prependEnvPath("PATH", lyxrc.path_prefix);
 581
 582         if (fs::exists(lyxrc.document_path) &&
 583             fs::is_directory(lyxrc.document_path))
 584                 package().document_dir() = lyxrc.document_path;
 585
 586         package().temp_dir() = createLyXTmpDir(lyxrc.tempdir_path);
 587         if (package().temp_dir().empty()) {
 588                 Alert::error(_("Could not create temporary directory"),
 589                              bformat(_("Could not create a temporary directory in\n"
 590                                                     "%1$s. Make sure that this\n"
 591                                                     "path exists and is writable and try again."),
 592                                      lyx::from_utf8(lyxrc.tempdir_path)));
 593                 // createLyXTmpDir() tries sufficiently hard to create a
 594                 // usable temp dir, so the probability to come here is
 595                 // close to zero. We therefore don't try to overcome this
 596                 // problem with e.g. asking the user for a new path and
 597                 // trying again but simply exit.
 598                 return false;
 599         }
 600
 601         if (lyxerr.debugging(Debug::INIT)) {
 602                 lyxerr << "LyX tmp dir: `" << package().temp_dir() << '\'' << endl;
 603         }
 604
 605         lyxerr[Debug::INIT] << "Reading session information '.lyx/session'..." << endl;
 606         session_.reset(new lyx::Session(lyxrc.num_lastfiles));
 607         return true;
 608 }
 609
 610
 611 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 612 {
 613         kbmap->bind("Right", FuncRequest(LFUN_CHAR_FORWARD));
 614         kbmap->bind("Left", FuncRequest(LFUN_CHAR_BACKWARD));
 615         kbmap->bind("Up", FuncRequest(LFUN_UP));
 616         kbmap->bind("Down", FuncRequest(LFUN_DOWN));
 617
 618         kbmap->bind("Tab", FuncRequest(LFUN_CELL_FORWARD));
 619         kbmap->bind("C-Tab", FuncRequest(LFUN_CELL_SPLIT));
 620         kbmap->bind("~S-ISO_Left_Tab", FuncRequest(LFUN_CELL_BACKWARD));
 621         kbmap->bind("~S-BackTab", FuncRequest(LFUN_CELL_BACKWARD));
 622
 623         kbmap->bind("Home", FuncRequest(LFUN_LINE_BEGIN));
 624         kbmap->bind("End", FuncRequest(LFUN_LINE_END));
 625         kbmap->bind("Prior", FuncRequest(LFUN_SCREEN_UP));
 626         kbmap->bind("Next", FuncRequest(LFUN_SCREEN_DOWN));
 627
 628         kbmap->bind("Return", FuncRequest(LFUN_BREAK_PARAGRAPH));
 629         //kbmap->bind("~C-~S-~M-nobreakspace", FuncRequest(LFUN_PROTECTEDSPACE));
 630
 631         kbmap->bind("Delete", FuncRequest(LFUN_CHAR_DELETE_FORWARD));
 632         kbmap->bind("BackSpace", FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
 633
 634         // kbmap->bindings to enable the use of the numeric keypad
 635         // e.g. Num Lock set
 636         //kbmap->bind("KP_0", FuncRequest(LFUN_SELF_INSERT));
 637         //kbmap->bind("KP_Decimal", FuncRequest(LFUN_SELF_INSERT));
 638         kbmap->bind("KP_Enter", FuncRequest(LFUN_BREAK_PARAGRAPH));
 639         //kbmap->bind("KP_1", FuncRequest(LFUN_SELF_INSERT));
 640         //kbmap->bind("KP_2", FuncRequest(LFUN_SELF_INSERT));
 641         //kbmap->bind("KP_3", FuncRequest(LFUN_SELF_INSERT));
 642         //kbmap->bind("KP_4", FuncRequest(LFUN_SELF_INSERT));
 643         //kbmap->bind("KP_5", FuncRequest(LFUN_SELF_INSERT));
 644         //kbmap->bind("KP_6", FuncRequest(LFUN_SELF_INSERT));
 645         //kbmap->bind("KP_Add", FuncRequest(LFUN_SELF_INSERT));
 646         //kbmap->bind("KP_7", FuncRequest(LFUN_SELF_INSERT));
 647         //kbmap->bind("KP_8", FuncRequest(LFUN_SELF_INSERT));
 648         //kbmap->bind("KP_9", FuncRequest(LFUN_SELF_INSERT));
 649         //kbmap->bind("KP_Divide", FuncRequest(LFUN_SELF_INSERT));
 650         //kbmap->bind("KP_Multiply", FuncRequest(LFUN_SELF_INSERT));
 651         //kbmap->bind("KP_Subtract", FuncRequest(LFUN_SELF_INSERT));
 652         kbmap->bind("KP_Right", FuncRequest(LFUN_CHAR_FORWARD));
 653         kbmap->bind("KP_Left", FuncRequest(LFUN_CHAR_BACKWARD));
 654         kbmap->bind("KP_Up", FuncRequest(LFUN_UP));
 655         kbmap->bind("KP_Down", FuncRequest(LFUN_DOWN));
 656         kbmap->bind("KP_Home", FuncRequest(LFUN_LINE_BEGIN));
 657         kbmap->bind("KP_End", FuncRequest(LFUN_LINE_END));
 658         kbmap->bind("KP_Prior", FuncRequest(LFUN_SCREEN_UP));
 659         kbmap->bind("KP_Next", FuncRequest(LFUN_SCREEN_DOWN));
 660 }
 661
 662
 663 void LyX::emergencyCleanup() const
 664 {
 665         // what to do about tmpfiles is non-obvious. we would
 666         // like to delete any we find, but our lyxdir might
 667         // contain documents etc. which might be helpful on
 668         // a crash
 669
 670         theApp->bufferList().emergencyWriteAll();
 671         theApp->server().emergencyCleanup();
 672 }
 673
 674
 675 void LyX::deadKeyBindings(kb_keymap * kbmap)
 676 {
 677         // bindKeyings for transparent handling of deadkeys
 678         // The keysyms are gotten from XFree86 X11R6
 679         kbmap->bind("~C-~S-~M-dead_acute", FuncRequest(LFUN_ACCENT_ACUTE));
 680         kbmap->bind("~C-~S-~M-dead_breve", FuncRequest(LFUN_ACCENT_BREVE));
 681         kbmap->bind("~C-~S-~M-dead_caron", FuncRequest(LFUN_ACCENT_CARON));
 682         kbmap->bind("~C-~S-~M-dead_cedilla", FuncRequest(LFUN_ACCENT_CEDILLA));
 683         kbmap->bind("~C-~S-~M-dead_abovering", FuncRequest(LFUN_ACCENT_CIRCLE));
 684         kbmap->bind("~C-~S-~M-dead_circumflex", FuncRequest(LFUN_ACCENT_CIRCUMFLEX));
 685         kbmap->bind("~C-~S-~M-dead_abovedot", FuncRequest(LFUN_ACCENT_DOT));
 686         kbmap->bind("~C-~S-~M-dead_grave", FuncRequest(LFUN_ACCENT_GRAVE));
 687         kbmap->bind("~C-~S-~M-dead_doubleacute", FuncRequest(LFUN_ACCENT_HUNGARIAN_UMLAUT));
 688         kbmap->bind("~C-~S-~M-dead_macron", FuncRequest(LFUN_ACCENT_MACRON));
 689         // nothing with this name
 690         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_ACCENT_SPECIAL_CARON);
 691         kbmap->bind("~C-~S-~M-dead_tilde", FuncRequest(LFUN_ACCENT_TILDE));
 692         kbmap->bind("~C-~S-~M-dead_diaeresis", FuncRequest(LFUN_ACCENT_UMLAUT));
 693         // nothing with this name either...
 694         //kbmap->bind("~C-~S-~M-dead_underbar", FuncRequest(LFUN_ACCENT_UNDERBAR));
 695         kbmap->bind("~C-~S-~M-dead_belowdot", FuncRequest(LFUN_ACCENT_UNDERDOT));
 696         kbmap->bind("~C-~S-~M-dead_tie", FuncRequest(LFUN_ACCENT_TIE));
 697         kbmap->bind("~C-~S-~M-dead_ogonek",FuncRequest(LFUN_ACCENT_OGONEK));
 698 }
 699
 700
 701 namespace {
 702
 703 // return true if file does not exist or is older than configure.py.
 704 bool needsUpdate(string const & file)
 705 {
 706         static string const configure_script =
 707                 addName(package().system_support(), "configure.py");
 708         string const absfile =
 709                 addName(package().user_support(), file);
 710
 711         return (! fs::exists(absfile))
 712                 || (fs::last_write_time(configure_script)
 713                     > fs::last_write_time(absfile));
 714 }
 715
 716 }
 717
 718
 719 bool LyX::queryUserLyXDir(bool explicit_userdir)
 720 {
 721         // Does user directory exist?
 722         if (fs::exists(package().user_support()) &&
 723             fs::is_directory(package().user_support())) {
 724                 first_start = false;
 725
 726                 return needsUpdate("lyxrc.defaults")
 727                         || needsUpdate("textclass.lst")
 728                         || needsUpdate("packages.lst");
 729         }
 730
 731         first_start = !explicit_userdir;
 732
 733         // If the user specified explicitly a directory, ask whether
 734         // to create it. If the user says "no", then exit.
 735         if (explicit_userdir &&
 736             Alert::prompt(
 737                     _("Missing user LyX directory"),
 738                     bformat(_("You have specified a non-existent user "
 739                                            "LyX directory, %1$s.\n"
 740                                            "It is needed to keep your own configuration."),
 741                             lyx::from_utf8(package().user_support())),
 742                     1, 0,
 743                     _("&Create directory"),
 744                     _("&Exit LyX"))) {
 745                 lyxerr << lyx::to_utf8(_("No user LyX directory. Exiting.")) << endl;
 746                 lyx_exit(EXIT_FAILURE);
 747         }
 748
 749         lyxerr << lyx::to_utf8(bformat(_("LyX: Creating directory %1$s"),
 750                           lyx::from_utf8(package().user_support())))
 751                << endl;
 752
 753         if (!createDirectory(package().user_support(), 0755)) {
 754                 // Failed, so let's exit.
 755                 lyxerr << lyx::to_utf8(_("Failed to create directory. Exiting."))
 756                        << endl;
 757                 lyx_exit(EXIT_FAILURE);
 758         }
 759
 760         return true;
 761 }
 762
 763
 764 bool LyX::readRcFile(string const & name)
 765 {
 766         lyxerr[Debug::INIT] << "About to read " << name << "... ";
 767
 768         string const lyxrc_path = libFileSearch(string(), name);
 769         if (!lyxrc_path.empty()) {
 770
 771                 lyxerr[Debug::INIT] << "Found in " << lyxrc_path << endl;
 772
 773                 if (lyxrc.read(lyxrc_path) < 0) {
 774                         showFileError(name);
 775                         return false;
 776                 }
 777         } else
 778                 lyxerr[Debug::INIT] << "Not found." << lyxrc_path << endl;
 779         return true;
 780
 781 }
 782
 783
 784 // Read the ui file `name'
 785 bool LyX::readUIFile(string const & name)
 786 {
 787         enum Uitags {
 788                 ui_menuset = 1,
 789                 ui_toolbar,
 790                 ui_toolbars,
 791                 ui_include,
 792                 ui_last
 793         };
 794
 795         struct keyword_item uitags[ui_last - 1] = {
 796                 { "include", ui_include },
 797                 { "menuset", ui_menuset },
 798                 { "toolbar", ui_toolbar },
 799                 { "toolbars", ui_toolbars }
 800         };
 801
 802         // Ensure that a file is read only once (prevents include loops)
 803         static std::list<string> uifiles;
 804         std::list<string>::const_iterator it  = uifiles.begin();
 805         std::list<string>::const_iterator end = uifiles.end();
 806         it = std::find(it, end, name);
 807         if (it != end) {
 808                 lyxerr[Debug::INIT] << "UI file '" << name
 809                                     << "' has been read already. "
 810                                     << "Is this an include loop?"
 811                                     << endl;
 812                 return false;
 813         }
 814
 815         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 816
 817         string const ui_path = libFileSearch("ui", name, "ui");
 818
 819         if (ui_path.empty()) {
 820                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 821                 showFileError(name);
 822                 return false;
 823         }
 824         uifiles.push_back(name);
 825
 826         lyxerr[Debug::INIT] << "Found " << name
 827                             << " in " << ui_path << endl;
 828         LyXLex lex(uitags, ui_last - 1);
 829         lex.setFile(ui_path);
 830         if (!lex.isOK()) {
 831                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 832                        << endl;
 833         }
 834
 835         if (lyxerr.debugging(Debug::PARSER))
 836                 lex.printTable(lyxerr);
 837
 838         while (lex.isOK()) {
 839                 switch (lex.lex()) {
 840                 case ui_include: {
 841                         lex.next(true);
 842                         string const file = lex.getString();
 843                         if (!readUIFile(file))
 844                                 return false;
 845                         break;
 846                 }
 847                 case ui_menuset:
 848                         menubackend.read(lex);
 849                         break;
 850
 851                 case ui_toolbar:
 852                         toolbarbackend.read(lex);
 853                         break;
 854
 855                 case ui_toolbars:
 856                         toolbarbackend.readToolbars(lex);
 857                         break;
 858
 859                 default:
 860                         if (!rtrim(lex.getString()).empty())
 861                                 lex.printError("LyX::ReadUIFile: "
 862                                                "Unknown menu tag: `$$Token'");
 863                         break;
 864                 }
 865         }
 866         return true;
 867 }
 868
 869
 870 // Read the languages file `name'
 871 bool LyX::readLanguagesFile(string const & name)
 872 {
 873         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 874
 875         string const lang_path = libFileSearch(string(), name);
 876         if (lang_path.empty()) {
 877                 showFileError(name);
 878                 return false;
 879         }
 880         languages.read(lang_path);
 881         return true;
 882 }
 883
 884
 885 // Read the encodings file `name'
 886 bool LyX::readEncodingsFile(string const & name)
 887 {
 888         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 889
 890         string const enc_path = libFileSearch(string(), name);
 891         if (enc_path.empty()) {
 892                 showFileError(name);
 893                 return false;
 894         }
 895         encodings.read(enc_path);
 896         return true;
 897 }
 898
 899
 900 namespace {
 901
 902 bool is_gui = true;
 903 string batch;
 904
 905 /// return the the number of arguments consumed
 906 typedef boost::function<int(string const &, string const &)> cmd_helper;
 907
 908 int parse_dbg(string const & arg, string const &)
 909 {
 910         if (arg.empty()) {
 911                 lyxerr << lyx::to_utf8(_("List of supported debug flags:")) << endl;
 912                 Debug::showTags(lyxerr);
 913                 exit(0);
 914         }
 915         lyxerr << lyx::to_utf8(bformat(_("Setting debug level to %1$s"), lyx::from_utf8(arg))) << endl;
 916
 917         lyxerr.level(Debug::value(arg));
 918         Debug::showLevel(lyxerr, lyxerr.level());
 919         return 1;
 920 }
 921
 922
 923 int parse_help(string const &, string const &)
 924 {
 925         lyxerr <<
 926                 lyx::to_utf8(_("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 927                   "Command line switches (case sensitive):\n"
 928                   "\t-help              summarize LyX usage\n"
 929                   "\t-userdir dir       set user directory to dir\n"
 930                   "\t-sysdir dir        set system directory to dir\n"
 931                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 932                   "\t-dbg feature[,feature]...\n"
 933                   "                  select the features to debug.\n"
 934                   "                  Type `lyx -dbg' to see the list of features\n"
 935                   "\t-x [--execute] command\n"
 936                   "                  where command is a lyx command.\n"
 937                   "\t-e [--export] fmt\n"
 938                   "                  where fmt is the export format of choice.\n"
 939                   "\t-i [--import] fmt file.xxx\n"
 940                   "                  where fmt is the import format of choice\n"
 941                   "                  and file.xxx is the file to be imported.\n"
 942                   "\t-version        summarize version and build info\n"
 943                                "Check the LyX man page for more details.")) << endl;
 944         exit(0);
 945         return 0;
 946 }
 947
 948 int parse_version(string const &, string const &)
 949 {
 950         lyxerr << "LyX " << lyx_version
 951                << " (" << lyx_release_date << ")" << endl;
 952         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 953
 954         lyxerr << lyx_version_info << endl;
 955         exit(0);
 956         return 0;
 957 }
 958
 959 int parse_sysdir(string const & arg, string const &)
 960 {
 961         if (arg.empty()) {
 962                 lyxerr << lyx::to_utf8(_("Missing directory for -sysdir switch")) << endl;
 963                 exit(1);
 964         }
 965         cl_system_support = arg;
 966         return 1;
 967 }
 968
 969 int parse_userdir(string const & arg, string const &)
 970 {
 971         if (arg.empty()) {
 972                 lyxerr << lyx::to_utf8(_("Missing directory for -userdir switch")) << endl;
 973                 exit(1);
 974         }
 975         cl_user_support = arg;
 976         return 1;
 977 }
 978
 979 int parse_execute(string const & arg, string const &)
 980 {
 981         if (arg.empty()) {
 982                 lyxerr << lyx::to_utf8(_("Missing command string after --execute switch")) << endl;
 983                 exit(1);
 984         }
 985         batch = arg;
 986         return 1;
 987 }
 988
 989 int parse_export(string const & type, string const &)
 990 {
 991         if (type.empty()) {
 992                 lyxerr << lyx::to_utf8(_("Missing file type [eg latex, ps...] after "
 993                                          "--export switch")) << endl;
 994                 exit(1);
 995         }
 996         batch = "buffer-export " + type;
 997         is_gui = false;
 998         return 1;
 999 }
1000
1001 int parse_import(string const & type, string const & file)
1002 {
1003         if (type.empty()) {
1004                 lyxerr << lyx::to_utf8(_("Missing file type [eg latex, ps...] after "
1005                                          "--import switch")) << endl;
1006                 exit(1);
1007         }
1008         if (file.empty()) {
1009                 lyxerr << lyx::to_utf8(_("Missing filename for --import")) << endl;
1010                 exit(1);
1011         }
1012
1013         batch = "buffer-import " + type + ' ' + file;
1014         return 2;
1015 }
1016
1017 } // namespace anon
1018
1019
1020 bool LyX::easyParse(int & argc, char * argv[])
1021 {
1022         std::map<string, cmd_helper> cmdmap;
1023
1024         cmdmap["-dbg"] = parse_dbg;
1025         cmdmap["-help"] = parse_help;
1026         cmdmap["--help"] = parse_help;
1027         cmdmap["-version"] = parse_version;
1028         cmdmap["--version"] = parse_version;
1029         cmdmap["-sysdir"] = parse_sysdir;
1030         cmdmap["-userdir"] = parse_userdir;
1031         cmdmap["-x"] = parse_execute;
1032         cmdmap["--execute"] = parse_execute;
1033         cmdmap["-e"] = parse_export;
1034         cmdmap["--export"] = parse_export;
1035         cmdmap["-i"] = parse_import;
1036         cmdmap["--import"] = parse_import;
1037
1038         for (int i = 1; i < argc; ++i) {
1039                 std::map<string, cmd_helper>::const_iterator it
1040                         = cmdmap.find(argv[i]);
1041
1042                 // check for X11 -geometry option
1043                 if (lyx::support::compare(argv[i], "-geometry") == 0)
1044                         geometryOption_ = true;
1045
1046                 // don't complain if not found - may be parsed later
1047                 if (it == cmdmap.end())
1048                         continue;
1049
1050                 string arg((i + 1 < argc) ? argv[i + 1] : "");
1051                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
1052
1053                 int const remove = 1 + it->second(arg, arg2);
1054
1055                 // Now, remove used arguments by shifting
1056                 // the following ones remove places down.
1057                 argc -= remove;
1058                 for (int j = i; j < argc; ++j)
1059                         argv[j] = argv[j + remove];
1060                 --i;
1061         }
1062
1063         batch_command = batch;
1064
1065         return is_gui;
1066 }