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 "frontends/Alert.h"
  44 #include "frontends/lyx_gui.h"
  45 #include "frontends/LyXView.h"
  46
  47 #include "support/environment.h"
  48 #include "support/filetools.h"
  49 #include "support/lyxlib.h"
  50 #include "support/convert.h"
  51 #include "support/os.h"
  52 #include "support/package.h"
  53 #include "support/path.h"
  54 #include "support/systemcall.h"
  55
  56 #include <boost/bind.hpp>
  57 #include <boost/filesystem/operations.hpp>
  58
  59 #include <iostream>
  60 #include <csignal>
  61
  62 using lyx::support::addName;
  63 using lyx::support::addPath;
  64 using lyx::support::bformat;
  65 using lyx::support::createDirectory;
  66 using lyx::support::createLyXTmpDir;
  67 using lyx::support::fileSearch;
  68 using lyx::support::getEnv;
  69 using lyx::support::i18nLibFileSearch;
  70 using lyx::support::libFileSearch;
  71 using lyx::support::package;
  72 using lyx::support::prependEnvPath;
  73 using lyx::support::rtrim;
  74 using lyx::support::Systemcall;
  75
  76 using lyx::docstring;
  77
  78 namespace os = lyx::support::os;
  79 namespace fs = boost::filesystem;
  80
  81 using std::endl;
  82 using std::string;
  83 using std::vector;
  84
  85 #ifndef CXX_GLOBAL_CSTD
  86 using std::exit;
  87 using std::signal;
  88 using std::system;
  89 #endif
  90
  91
  92 extern LyXServer * lyxserver;
  93
  94 // This is the global bufferlist object
  95 BufferList bufferlist;
  96
  97 // convenient to have it here.
  98 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  99
 100 namespace {
 101
 102 // Filled with the command line arguments "foo" of "-sysdir foo" or
 103 // "-userdir foo".
 104 string cl_system_support;
 105 string cl_user_support;
 106
 107
 108 void lyx_exit(int status)
 109 {
 110         // FIXME: We should not directly call exit(), since it only
 111         // guarantees a return to the system, no application cleanup.
 112         // This may cause troubles with not executed destructors.
 113         if (lyx_gui::use_gui)
 114                 // lyx_gui::exit may return and only schedule the exit
 115                 lyx_gui::exit(status);
 116         exit(status);
 117 }
 118
 119
 120 void showFileError(string const & error)
 121 {
 122         Alert::warning(_("Could not read configuration file"),
 123                        bformat(_("Error while reading the configuration file\n%1$s.\n"
 124                            "Please check your installation."), lyx::from_utf8(error)));
 125 }
 126
 127
 128 void reconfigureUserLyXDir()
 129 {
 130         string const configure_command = package().configure_command();
 131
 132         lyxerr << lyx::to_utf8(_("LyX: reconfiguring user directory")) << endl;
 133         lyx::support::Path p(package().user_support());
 134         Systemcall one;
 135         one.startscript(Systemcall::Wait, configure_command);
 136         lyxerr << "LyX: " << lyx::to_utf8(_("Done!")) << endl;
 137 }
 138
 139 } // namespace anon
 140
 141
 142 boost::scoped_ptr<LyX> LyX::singleton_;
 143
 144 int LyX::exec(int & argc, char * argv[])
 145 {
 146         BOOST_ASSERT(!singleton_.get());
 147         // We must return from this before launching the gui so that
 148         // other parts of the code can access singleton_ through
 149         // LyX::ref and LyX::cref.
 150         singleton_.reset(new LyX);
 151         // Start the real execution loop.
 152         return singleton_->priv_exec(argc, argv);
 153 }
 154
 155
 156 LyX & LyX::ref()
 157 {
 158         BOOST_ASSERT(singleton_.get());
 159         return *singleton_.get();
 160 }
 161
 162
 163 LyX const & LyX::cref()
 164 {
 165         BOOST_ASSERT(singleton_.get());
 166         return *singleton_.get();
 167 }
 168
 169
 170 LyX::LyX()
 171         : first_start(false), geometryOption_(false)
 172 {}
 173
 174
 175 lyx::Session & LyX::session()
 176 {
 177         BOOST_ASSERT(session_.get());
 178         return *session_.get();
 179 }
 180
 181
 182 lyx::Session const & LyX::session() const
 183 {
 184         BOOST_ASSERT(session_.get());
 185         return *session_.get();
 186 }
 187
 188
 189 void LyX::addLyXView(LyXView * lyxview)
 190 {
 191         views_.push_back(lyxview);
 192 }
 193
 194
 195 Buffer const * const LyX::updateInset(InsetBase const * inset) const
 196 {
 197         if (!inset)
 198                 return 0;
 199
 200         Buffer const * buffer_ptr = 0;
 201         ViewList::const_iterator it = views_.begin();
 202         ViewList::const_iterator const end = views_.end();
 203         for (; it != end; ++it) {
 204                 Buffer const * ptr = (*it)->updateInset(inset);
 205                 if (ptr)
 206                         buffer_ptr = ptr;
 207         }
 208         return buffer_ptr;
 209 }
 210
 211
 212 int LyX::priv_exec(int & argc, char * argv[])
 213 {
 214         // Here we need to parse the command line. At least
 215         // we need to parse for "-dbg" and "-help"
 216         lyx_gui::use_gui = easyParse(argc, argv);
 217
 218         lyx::support::init_package(argv[0], cl_system_support, cl_user_support,
 219                                    lyx::support::top_build_dir_is_one_level_up);
 220
 221         // Start the real execution loop.
 222         if (lyx_gui::use_gui)
 223                 return lyx_gui::exec(argc, argv);
 224         else
 225                 return exec2(argc, argv);
 226 }
 227
 228
 229 int LyX::exec2(int & argc, char * argv[])
 230 {
 231         // check for any spurious extra arguments
 232         // other than documents
 233         for (int argi = 1; argi < argc ; ++argi) {
 234                 if (argv[argi][0] == '-') {
 235                         lyxerr << lyx::to_utf8(
 236                                 bformat(_("Wrong command line option `%1$s'. Exiting."),
 237                                 lyx::from_utf8(argv[argi]))) << endl;
 238                         return EXIT_FAILURE;
 239                 }
 240         }
 241
 242         // Initialization of LyX (reads lyxrc and more)
 243         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 244         bool const success = init();
 245         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 246         if (!success)
 247                 return EXIT_FAILURE;
 248
 249         if (lyx_gui::use_gui)
 250                 lyx_gui::parse_lyxrc();
 251
 252         vector<string> files;
 253
 254         for (int argi = argc - 1; argi >= 1; --argi)
 255                 files.push_back(os::internal_path(argv[argi]));
 256
 257         if (first_start)
 258                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 259
 260         // Execute batch commands if available
 261         if (!batch_command.empty()) {
 262
 263                 lyxerr[Debug::INIT] << "About to handle -x '"
 264                        << batch_command << '\'' << endl;
 265
 266                 Buffer * last_loaded = 0;
 267
 268                 vector<string>::const_iterator it = files.begin();
 269                 vector<string>::const_iterator end = files.end();
 270
 271                 for (; it != end; ++it) {
 272                         // get absolute path of file and add ".lyx" to
 273                         // the filename if necessary
 274                         string s = fileSearch(string(), *it, "lyx");
 275                         if (s.empty()) {
 276                                 Buffer * const b = newFile(*it, string(), true);
 277                                 if (b)
 278                                         last_loaded = b;
 279                         } else {
 280                                 Buffer * buf = bufferlist.newBuffer(s, false);
 281                                 if (loadLyXFile(buf, s)) {
 282                                         last_loaded = buf;
 283                                         ErrorList const & el = buf->errorList("Parse");
 284                                         if (!el.empty())
 285                                                 for_each(el.begin(), el.end(),
 286                                                         boost::bind(&LyX::printError, this, _1));
 287                                 }
 288                                 else
 289                                         bufferlist.release(buf);
 290                         }
 291                 }
 292
 293                 // try to dispatch to last loaded buffer first
 294                 if (last_loaded) {
 295                         bool success = false;
 296                         if (last_loaded->dispatch(batch_command, &success)) {
 297                                 quitLyX(false);
 298                                 return !success;
 299                         }
 300                 }
 301                 files.clear(); // the files are already loaded
 302         }
 303
 304         if (lyx_gui::use_gui) {
 305                 // determine windows size and position, from lyxrc and/or session
 306                 // initial geometry
 307                 unsigned int width = 690;
 308                 unsigned int height = 510;
 309                 bool maximize = false;
 310                 // first try lyxrc
 311                 if (lyxrc.geometry_width != 0 && lyxrc.geometry_height != 0 ) {
 312                         width = lyxrc.geometry_width;
 313                         height = lyxrc.geometry_height;
 314                 }
 315                 // if lyxrc returns (0,0), then use session info
 316                 else {
 317                         string val = session().loadSessionInfo("WindowWidth");
 318                         if (!val.empty())
 319                                 width = convert<unsigned int>(val);
 320                         val = session().loadSessionInfo("WindowHeight");
 321                         if (!val.empty())
 322                                 height = convert<unsigned int>(val);
 323                         if (session().loadSessionInfo("WindowIsMaximized") == "yes")
 324                                 maximize = true;
 325                 }
 326                 // if user wants to restore window position
 327                 int posx = -1;
 328                 int posy = -1;
 329                 if (lyxrc.geometry_xysaved) {
 330                         string val = session().loadSessionInfo("WindowPosX");
 331                         if (!val.empty())
 332                                 posx = convert<int>(val);
 333                         val = session().loadSessionInfo("WindowPosY");
 334                         if (!val.empty())
 335                                 posy = convert<int>(val);
 336                 }
 337
 338                 if (geometryOption_) {
 339                         width = 0;
 340                         height = 0;
 341                 }
 342                 // create the main window
 343                 LyXView * view = lyx_gui::create_view(width, height, posx, posy, maximize);
 344
 345                 // load files
 346                 for_each(files.begin(), files.end(),
 347                         bind(&LyXView::loadLyXFile, view, _1, true));
 348
 349                 // if a file is specified, I assume that user wants to edit *that* file
 350                 if (files.empty() && lyxrc.load_session) {
 351                         vector<string> const & lastopened = session_->lastOpenedFiles();
 352                         // do not add to the lastfile list since these files are restored from
 353                         // last seesion, and should be already there (regular files), or should
 354                         // not be added at all (help files).
 355                         for_each(lastopened.begin(), lastopened.end(),
 356                                 bind(&LyXView::loadLyXFile, view, _1, false));
 357                 }
 358                 // clear this list to save a few bytes of RAM
 359                 session_->clearLastOpenedFiles();
 360
 361                 return lyx_gui::start(view, batch_command);
 362         } else {
 363                 // Something went wrong above
 364                 quitLyX(false);
 365                 return EXIT_FAILURE;
 366         }
 367 }
 368
 369
 370 /*
 371 Signals and Windows
 372 ===================
 373 The SIGHUP signal does not exist on Windows and does not need to be handled.
 374
 375 Windows handles SIGFPE and SIGSEGV signals as expected.
 376
 377 Cntl+C interrupts (mapped to SIGINT by Windows' POSIX compatability layer)
 378 cause a new thread to be spawned. This may well result in unexpected
 379 behaviour by the single-threaded LyX.
 380
 381 SIGTERM signals will come only from another process actually sending
 382 that signal using 'raise' in Windows' POSIX compatability layer. It will
 383 not come from the general "terminate process" methods that everyone
 384 actually uses (and which can't be trapped). Killing an app 'politely' on
 385 Windows involves first sending a WM_CLOSE message, something that is
 386 caught already by the Qt frontend.
 387
 388 For more information see:
 389
 390 http://aspn.activestate.com/ASPN/Mail/Message/ActiveTcl/2034055
 391 ...signals are mostly useless on Windows for a variety of reasons that are
 392 Windows specific...
 393
 394 'UNIX Application Migration Guide, Chapter 9'
 395 http://msdn.microsoft.com/library/en-us/dnucmg/html/UCMGch09.asp
 396
 397 'How To Terminate an Application "Cleanly" in Win32'
 398 http://support.microsoft.com/default.aspx?scid=kb;en-us;178893
 399 */
 400 extern "C" {
 401
 402 static void error_handler(int err_sig)
 403 {
 404         // Throw away any signals other than the first one received.
 405         static sig_atomic_t handling_error = false;
 406         if (handling_error)
 407                 return;
 408         handling_error = true;
 409
 410         // We have received a signal indicating a fatal error, so
 411         // try and save the data ASAP.
 412         LyX::cref().emergencyCleanup();
 413
 414         // These lyxerr calls may or may not work:
 415
 416         // Signals are asynchronous, so the main program may be in a very
 417         // fragile state when a signal is processed and thus while a signal
 418         // handler function executes.
 419         // In general, therefore, we should avoid performing any
 420         // I/O operations or calling most library and system functions from
 421         // signal handlers.
 422
 423         // This shouldn't matter here, however, as we've already invoked
 424         // emergencyCleanup.
 425         switch (err_sig) {
 426 #ifdef SIGHUP
 427         case SIGHUP:
 428                 lyxerr << "\nlyx: SIGHUP signal caught\nBye." << endl;
 429                 break;
 430 #endif
 431         case SIGFPE:
 432                 lyxerr << "\nlyx: SIGFPE signal caught\nBye." << endl;
 433                 break;
 434         case SIGSEGV:
 435                 lyxerr << "\nlyx: SIGSEGV signal caught\n"
 436                           "Sorry, you have found a bug in LyX. "
 437                           "Please read the bug-reporting instructions "
 438                           "in Help->Introduction and send us a bug report, "
 439                           "if necessary. Thanks !\nBye." << endl;
 440                 break;
 441         case SIGINT:
 442         case SIGTERM:
 443                 // no comments
 444                 break;
 445         }
 446
 447         // Deinstall the signal handlers
 448 #ifdef SIGHUP
 449         signal(SIGHUP, SIG_DFL);
 450 #endif
 451         signal(SIGINT, SIG_DFL);
 452         signal(SIGFPE, SIG_DFL);
 453         signal(SIGSEGV, SIG_DFL);
 454         signal(SIGTERM, SIG_DFL);
 455
 456 #ifdef SIGHUP
 457         if (err_sig == SIGSEGV ||
 458             (err_sig != SIGHUP && !getEnv("LYXDEBUG").empty()))
 459 #else
 460         if (err_sig == SIGSEGV || !getEnv("LYXDEBUG").empty())
 461 #endif
 462                 lyx::support::abort();
 463         exit(0);
 464 }
 465
 466 }
 467
 468
 469 void LyX::printError(ErrorItem const & ei)
 470 {
 471         docstring tmp = _("LyX: ") + ei.error + lyx::char_type(':')
 472                 + ei.description;
 473         std::cerr << lyx::to_utf8(tmp) << std::endl;
 474 }
 475
 476
 477 bool LyX::init()
 478 {
 479 #ifdef SIGHUP
 480         signal(SIGHUP, error_handler);
 481 #endif
 482         signal(SIGFPE, error_handler);
 483         signal(SIGSEGV, error_handler);
 484         signal(SIGINT, error_handler);
 485         signal(SIGTERM, error_handler);
 486         // SIGPIPE can be safely ignored.
 487
 488         lyxrc.tempdir_path = package().temp_dir();
 489         lyxrc.document_path = package().document_dir();
 490
 491         if (lyxrc.template_path.empty()) {
 492                 lyxrc.template_path = addPath(package().system_support(),
 493                                               "templates");
 494         }
 495
 496         if (lyxrc.roman_font_name.empty())
 497                 lyxrc.roman_font_name = lyx_gui::roman_font_name();
 498         if (lyxrc.sans_font_name.empty())
 499                 lyxrc.sans_font_name = lyx_gui::sans_font_name();
 500         if (lyxrc.typewriter_font_name.empty())
 501                 lyxrc.typewriter_font_name = lyx_gui::typewriter_font_name();
 502
 503         //
 504         // Read configuration files
 505         //
 506
 507         // This one may have been distributed along with LyX.
 508         if (!readRcFile("lyxrc.dist"))
 509                 return false;
 510
 511         // Set the PATH correctly.
 512 #if !defined (USE_POSIX_PACKAGING)
 513         // Add the directory containing the LyX executable to the path
 514         // so that LyX can find things like tex2lyx.
 515         if (package().build_support().empty())
 516                 prependEnvPath("PATH", package().binary_dir());
 517 #endif
 518         if (!lyxrc.path_prefix.empty())
 519                 prependEnvPath("PATH", lyxrc.path_prefix);
 520
 521         // Check that user LyX directory is ok.
 522         if (queryUserLyXDir(package().explicit_user_support()))
 523                 reconfigureUserLyXDir();
 524
 525         // no need for a splash when there is no GUI
 526         if (!lyx_gui::use_gui) {
 527                 first_start = false;
 528         }
 529
 530         // This one is generated in user_support directory by lib/configure.py.
 531         if (!readRcFile("lyxrc.defaults"))
 532                 return false;
 533
 534         // Query the OS to know what formats are viewed natively
 535         formats.setAutoOpen();
 536
 537         system_lyxrc = lyxrc;
 538         system_formats = formats;
 539         system_converters = converters;
 540         system_movers = movers;
 541         system_lcolor = lcolor;
 542
 543         // This one is edited through the preferences dialog.
 544         if (!readRcFile("preferences"))
 545                 return false;
 546
 547         if (!readEncodingsFile("encodings"))
 548                 return false;
 549         if (!readLanguagesFile("languages"))
 550                 return false;
 551
 552         // Load the layouts
 553         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 554         if (!LyXSetStyle())
 555                 return false;
 556
 557         if (lyx_gui::use_gui) {
 558                 // Set up bindings
 559                 toplevel_keymap.reset(new kb_keymap);
 560                 defaultKeyBindings(toplevel_keymap.get());
 561                 toplevel_keymap->read(lyxrc.bind_file);
 562
 563                 // Read menus
 564                 if (!readUIFile(lyxrc.ui_file))
 565                         return false;
 566         }
 567
 568         if (lyxerr.debugging(Debug::LYXRC))
 569                 lyxrc.print();
 570
 571         os::windows_style_tex_paths(lyxrc.windows_style_tex_paths);
 572         if (!lyxrc.path_prefix.empty())
 573                 prependEnvPath("PATH", lyxrc.path_prefix);
 574
 575         if (fs::exists(lyxrc.document_path) &&
 576             fs::is_directory(lyxrc.document_path))
 577                 package().document_dir() = lyxrc.document_path;
 578
 579         package().temp_dir() = createLyXTmpDir(lyxrc.tempdir_path);
 580         if (package().temp_dir().empty()) {
 581                 Alert::error(_("Could not create temporary directory"),
 582                              bformat(_("Could not create a temporary directory in\n"
 583                                                     "%1$s. Make sure that this\n"
 584                                                     "path exists and is writable and try again."),
 585                                      lyx::from_utf8(lyxrc.tempdir_path)));
 586                 // createLyXTmpDir() tries sufficiently hard to create a
 587                 // usable temp dir, so the probability to come here is
 588                 // close to zero. We therefore don't try to overcome this
 589                 // problem with e.g. asking the user for a new path and
 590                 // trying again but simply exit.
 591                 return false;
 592         }
 593
 594         if (lyxerr.debugging(Debug::INIT)) {
 595                 lyxerr << "LyX tmp dir: `" << package().temp_dir() << '\'' << endl;
 596         }
 597
 598         lyxerr[Debug::INIT] << "Reading session information '.lyx/session'..." << endl;
 599         session_.reset(new lyx::Session(lyxrc.num_lastfiles));
 600         return true;
 601 }
 602
 603
 604 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 605 {
 606         kbmap->bind("Right", FuncRequest(LFUN_CHAR_FORWARD));
 607         kbmap->bind("Left", FuncRequest(LFUN_CHAR_BACKWARD));
 608         kbmap->bind("Up", FuncRequest(LFUN_UP));
 609         kbmap->bind("Down", FuncRequest(LFUN_DOWN));
 610
 611         kbmap->bind("Tab", FuncRequest(LFUN_CELL_FORWARD));
 612         kbmap->bind("C-Tab", FuncRequest(LFUN_CELL_SPLIT));
 613         kbmap->bind("~S-ISO_Left_Tab", FuncRequest(LFUN_CELL_BACKWARD));
 614         kbmap->bind("~S-BackTab", FuncRequest(LFUN_CELL_BACKWARD));
 615
 616         kbmap->bind("Home", FuncRequest(LFUN_LINE_BEGIN));
 617         kbmap->bind("End", FuncRequest(LFUN_LINE_END));
 618         kbmap->bind("Prior", FuncRequest(LFUN_SCREEN_UP));
 619         kbmap->bind("Next", FuncRequest(LFUN_SCREEN_DOWN));
 620
 621         kbmap->bind("Return", FuncRequest(LFUN_BREAK_PARAGRAPH));
 622         //kbmap->bind("~C-~S-~M-nobreakspace", FuncRequest(LFUN_PROTECTEDSPACE));
 623
 624         kbmap->bind("Delete", FuncRequest(LFUN_CHAR_DELETE_FORWARD));
 625         kbmap->bind("BackSpace", FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
 626
 627         // kbmap->bindings to enable the use of the numeric keypad
 628         // e.g. Num Lock set
 629         //kbmap->bind("KP_0", FuncRequest(LFUN_SELF_INSERT));
 630         //kbmap->bind("KP_Decimal", FuncRequest(LFUN_SELF_INSERT));
 631         kbmap->bind("KP_Enter", FuncRequest(LFUN_BREAK_PARAGRAPH));
 632         //kbmap->bind("KP_1", FuncRequest(LFUN_SELF_INSERT));
 633         //kbmap->bind("KP_2", FuncRequest(LFUN_SELF_INSERT));
 634         //kbmap->bind("KP_3", FuncRequest(LFUN_SELF_INSERT));
 635         //kbmap->bind("KP_4", FuncRequest(LFUN_SELF_INSERT));
 636         //kbmap->bind("KP_5", FuncRequest(LFUN_SELF_INSERT));
 637         //kbmap->bind("KP_6", FuncRequest(LFUN_SELF_INSERT));
 638         //kbmap->bind("KP_Add", FuncRequest(LFUN_SELF_INSERT));
 639         //kbmap->bind("KP_7", FuncRequest(LFUN_SELF_INSERT));
 640         //kbmap->bind("KP_8", FuncRequest(LFUN_SELF_INSERT));
 641         //kbmap->bind("KP_9", FuncRequest(LFUN_SELF_INSERT));
 642         //kbmap->bind("KP_Divide", FuncRequest(LFUN_SELF_INSERT));
 643         //kbmap->bind("KP_Multiply", FuncRequest(LFUN_SELF_INSERT));
 644         //kbmap->bind("KP_Subtract", FuncRequest(LFUN_SELF_INSERT));
 645         kbmap->bind("KP_Right", FuncRequest(LFUN_CHAR_FORWARD));
 646         kbmap->bind("KP_Left", FuncRequest(LFUN_CHAR_BACKWARD));
 647         kbmap->bind("KP_Up", FuncRequest(LFUN_UP));
 648         kbmap->bind("KP_Down", FuncRequest(LFUN_DOWN));
 649         kbmap->bind("KP_Home", FuncRequest(LFUN_LINE_BEGIN));
 650         kbmap->bind("KP_End", FuncRequest(LFUN_LINE_END));
 651         kbmap->bind("KP_Prior", FuncRequest(LFUN_SCREEN_UP));
 652         kbmap->bind("KP_Next", FuncRequest(LFUN_SCREEN_DOWN));
 653 }
 654
 655
 656 void LyX::emergencyCleanup() const
 657 {
 658         // what to do about tmpfiles is non-obvious. we would
 659         // like to delete any we find, but our lyxdir might
 660         // contain documents etc. which might be helpful on
 661         // a crash
 662
 663         bufferlist.emergencyWriteAll();
 664         if (lyxserver)
 665                 lyxserver->emergencyCleanup();
 666 }
 667
 668
 669 void LyX::deadKeyBindings(kb_keymap * kbmap)
 670 {
 671         // bindKeyings for transparent handling of deadkeys
 672         // The keysyms are gotten from XFree86 X11R6
 673         kbmap->bind("~C-~S-~M-dead_acute", FuncRequest(LFUN_ACCENT_ACUTE));
 674         kbmap->bind("~C-~S-~M-dead_breve", FuncRequest(LFUN_ACCENT_BREVE));
 675         kbmap->bind("~C-~S-~M-dead_caron", FuncRequest(LFUN_ACCENT_CARON));
 676         kbmap->bind("~C-~S-~M-dead_cedilla", FuncRequest(LFUN_ACCENT_CEDILLA));
 677         kbmap->bind("~C-~S-~M-dead_abovering", FuncRequest(LFUN_ACCENT_CIRCLE));
 678         kbmap->bind("~C-~S-~M-dead_circumflex", FuncRequest(LFUN_ACCENT_CIRCUMFLEX));
 679         kbmap->bind("~C-~S-~M-dead_abovedot", FuncRequest(LFUN_ACCENT_DOT));
 680         kbmap->bind("~C-~S-~M-dead_grave", FuncRequest(LFUN_ACCENT_GRAVE));
 681         kbmap->bind("~C-~S-~M-dead_doubleacute", FuncRequest(LFUN_ACCENT_HUNGARIAN_UMLAUT));
 682         kbmap->bind("~C-~S-~M-dead_macron", FuncRequest(LFUN_ACCENT_MACRON));
 683         // nothing with this name
 684         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_ACCENT_SPECIAL_CARON);
 685         kbmap->bind("~C-~S-~M-dead_tilde", FuncRequest(LFUN_ACCENT_TILDE));
 686         kbmap->bind("~C-~S-~M-dead_diaeresis", FuncRequest(LFUN_ACCENT_UMLAUT));
 687         // nothing with this name either...
 688         //kbmap->bind("~C-~S-~M-dead_underbar", FuncRequest(LFUN_ACCENT_UNDERBAR));
 689         kbmap->bind("~C-~S-~M-dead_belowdot", FuncRequest(LFUN_ACCENT_UNDERDOT));
 690         kbmap->bind("~C-~S-~M-dead_tie", FuncRequest(LFUN_ACCENT_TIE));
 691         kbmap->bind("~C-~S-~M-dead_ogonek",FuncRequest(LFUN_ACCENT_OGONEK));
 692 }
 693
 694
 695 namespace {
 696
 697 // return true if file does not exist or is older than configure.py.
 698 bool needsUpdate(string const & file)
 699 {
 700         static string const configure_script =
 701                 addName(package().system_support(), "configure.py");
 702         string const absfile =
 703                 addName(package().user_support(), file);
 704
 705         return (! fs::exists(absfile))
 706                 || (fs::last_write_time(configure_script)
 707                     > fs::last_write_time(absfile));
 708 }
 709
 710 }
 711
 712
 713 bool LyX::queryUserLyXDir(bool explicit_userdir)
 714 {
 715         // Does user directory exist?
 716         if (fs::exists(package().user_support()) &&
 717             fs::is_directory(package().user_support())) {
 718                 first_start = false;
 719
 720                 return needsUpdate("lyxrc.defaults")
 721                         || needsUpdate("textclass.lst")
 722                         || needsUpdate("packages.lst");
 723         }
 724
 725         first_start = !explicit_userdir;
 726
 727         // If the user specified explicitly a directory, ask whether
 728         // to create it. If the user says "no", then exit.
 729         if (explicit_userdir &&
 730             Alert::prompt(
 731                     _("Missing user LyX directory"),
 732                     bformat(_("You have specified a non-existent user "
 733                                            "LyX directory, %1$s.\n"
 734                                            "It is needed to keep your own configuration."),
 735                             lyx::from_utf8(package().user_support())),
 736                     1, 0,
 737                     _("&Create directory"),
 738                     _("&Exit LyX"))) {
 739                 lyxerr << lyx::to_utf8(_("No user LyX directory. Exiting.")) << endl;
 740                 lyx_exit(EXIT_FAILURE);
 741         }
 742
 743         lyxerr << lyx::to_utf8(bformat(_("LyX: Creating directory %1$s"),
 744                           lyx::from_utf8(package().user_support())))
 745                << endl;
 746
 747         if (!createDirectory(package().user_support(), 0755)) {
 748                 // Failed, so let's exit.
 749                 lyxerr << lyx::to_utf8(_("Failed to create directory. Exiting."))
 750                        << endl;
 751                 lyx_exit(EXIT_FAILURE);
 752         }
 753
 754         return true;
 755 }
 756
 757
 758 bool LyX::readRcFile(string const & name)
 759 {
 760         lyxerr[Debug::INIT] << "About to read " << name << "... ";
 761
 762         string const lyxrc_path = libFileSearch(string(), name);
 763         if (!lyxrc_path.empty()) {
 764
 765                 lyxerr[Debug::INIT] << "Found in " << lyxrc_path << endl;
 766
 767                 if (lyxrc.read(lyxrc_path) < 0) {
 768                         showFileError(name);
 769                         return false;
 770                 }
 771         } else
 772                 lyxerr[Debug::INIT] << "Not found." << lyxrc_path << endl;
 773         return true;
 774
 775 }
 776
 777
 778 // Read the ui file `name'
 779 bool LyX::readUIFile(string const & name)
 780 {
 781         enum Uitags {
 782                 ui_menuset = 1,
 783                 ui_toolbar,
 784                 ui_toolbars,
 785                 ui_include,
 786                 ui_last
 787         };
 788
 789         struct keyword_item uitags[ui_last - 1] = {
 790                 { "include", ui_include },
 791                 { "menuset", ui_menuset },
 792                 { "toolbar", ui_toolbar },
 793                 { "toolbars", ui_toolbars }
 794         };
 795
 796         // Ensure that a file is read only once (prevents include loops)
 797         static std::list<string> uifiles;
 798         std::list<string>::const_iterator it  = uifiles.begin();
 799         std::list<string>::const_iterator end = uifiles.end();
 800         it = std::find(it, end, name);
 801         if (it != end) {
 802                 lyxerr[Debug::INIT] << "UI file '" << name
 803                                     << "' has been read already. "
 804                                     << "Is this an include loop?"
 805                                     << endl;
 806                 return false;
 807         }
 808
 809         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 810
 811         string const ui_path = libFileSearch("ui", name, "ui");
 812
 813         if (ui_path.empty()) {
 814                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 815                 showFileError(name);
 816                 return false;
 817         }
 818         uifiles.push_back(name);
 819
 820         lyxerr[Debug::INIT] << "Found " << name
 821                             << " in " << ui_path << endl;
 822         LyXLex lex(uitags, ui_last - 1);
 823         lex.setFile(ui_path);
 824         if (!lex.isOK()) {
 825                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 826                        << endl;
 827         }
 828
 829         if (lyxerr.debugging(Debug::PARSER))
 830                 lex.printTable(lyxerr);
 831
 832         while (lex.isOK()) {
 833                 switch (lex.lex()) {
 834                 case ui_include: {
 835                         lex.next(true);
 836                         string const file = lex.getString();
 837                         if (!readUIFile(file))
 838                                 return false;
 839                         break;
 840                 }
 841                 case ui_menuset:
 842                         menubackend.read(lex);
 843                         break;
 844
 845                 case ui_toolbar:
 846                         toolbarbackend.read(lex);
 847                         break;
 848
 849                 case ui_toolbars:
 850                         toolbarbackend.readToolbars(lex);
 851                         break;
 852
 853                 default:
 854                         if (!rtrim(lex.getString()).empty())
 855                                 lex.printError("LyX::ReadUIFile: "
 856                                                "Unknown menu tag: `$$Token'");
 857                         break;
 858                 }
 859         }
 860         return true;
 861 }
 862
 863
 864 // Read the languages file `name'
 865 bool LyX::readLanguagesFile(string const & name)
 866 {
 867         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 868
 869         string const lang_path = libFileSearch(string(), name);
 870         if (lang_path.empty()) {
 871                 showFileError(name);
 872                 return false;
 873         }
 874         languages.read(lang_path);
 875         return true;
 876 }
 877
 878
 879 // Read the encodings file `name'
 880 bool LyX::readEncodingsFile(string const & name)
 881 {
 882         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 883
 884         string const enc_path = libFileSearch(string(), name);
 885         if (enc_path.empty()) {
 886                 showFileError(name);
 887                 return false;
 888         }
 889         encodings.read(enc_path);
 890         return true;
 891 }
 892
 893
 894 namespace {
 895
 896 bool is_gui = true;
 897 string batch;
 898
 899 /// return the the number of arguments consumed
 900 typedef boost::function<int(string const &, string const &)> cmd_helper;
 901
 902 int parse_dbg(string const & arg, string const &)
 903 {
 904         if (arg.empty()) {
 905                 lyxerr << lyx::to_utf8(_("List of supported debug flags:")) << endl;
 906                 Debug::showTags(lyxerr);
 907                 exit(0);
 908         }
 909         lyxerr << lyx::to_utf8(bformat(_("Setting debug level to %1$s"), lyx::from_utf8(arg))) << endl;
 910
 911         lyxerr.level(Debug::value(arg));
 912         Debug::showLevel(lyxerr, lyxerr.level());
 913         return 1;
 914 }
 915
 916
 917 int parse_help(string const &, string const &)
 918 {
 919         lyxerr <<
 920                 lyx::to_utf8(_("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 921                   "Command line switches (case sensitive):\n"
 922                   "\t-help              summarize LyX usage\n"
 923                   "\t-userdir dir       set user directory to dir\n"
 924                   "\t-sysdir dir        set system directory to dir\n"
 925                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 926                   "\t-dbg feature[,feature]...\n"
 927                   "                  select the features to debug.\n"
 928                   "                  Type `lyx -dbg' to see the list of features\n"
 929                   "\t-x [--execute] command\n"
 930                   "                  where command is a lyx command.\n"
 931                   "\t-e [--export] fmt\n"
 932                   "                  where fmt is the export format of choice.\n"
 933                   "\t-i [--import] fmt file.xxx\n"
 934                   "                  where fmt is the import format of choice\n"
 935                   "                  and file.xxx is the file to be imported.\n"
 936                   "\t-version        summarize version and build info\n"
 937                                "Check the LyX man page for more details.")) << endl;
 938         exit(0);
 939         return 0;
 940 }
 941
 942 int parse_version(string const &, string const &)
 943 {
 944         lyxerr << "LyX " << lyx_version
 945                << " (" << lyx_release_date << ")" << endl;
 946         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 947
 948         lyxerr << lyx_version_info << endl;
 949         exit(0);
 950         return 0;
 951 }
 952
 953 int parse_sysdir(string const & arg, string const &)
 954 {
 955         if (arg.empty()) {
 956                 lyxerr << lyx::to_utf8(_("Missing directory for -sysdir switch")) << endl;
 957                 exit(1);
 958         }
 959         cl_system_support = arg;
 960         return 1;
 961 }
 962
 963 int parse_userdir(string const & arg, string const &)
 964 {
 965         if (arg.empty()) {
 966                 lyxerr << lyx::to_utf8(_("Missing directory for -userdir switch")) << endl;
 967                 exit(1);
 968         }
 969         cl_user_support = arg;
 970         return 1;
 971 }
 972
 973 int parse_execute(string const & arg, string const &)
 974 {
 975         if (arg.empty()) {
 976                 lyxerr << lyx::to_utf8(_("Missing command string after --execute switch")) << endl;
 977                 exit(1);
 978         }
 979         batch = arg;
 980         return 1;
 981 }
 982
 983 int parse_export(string const & type, string const &)
 984 {
 985         if (type.empty()) {
 986                 lyxerr << lyx::to_utf8(_("Missing file type [eg latex, ps...] after "
 987                                          "--export switch")) << endl;
 988                 exit(1);
 989         }
 990         batch = "buffer-export " + type;
 991         is_gui = false;
 992         return 1;
 993 }
 994
 995 int parse_import(string const & type, string const & file)
 996 {
 997         if (type.empty()) {
 998                 lyxerr << lyx::to_utf8(_("Missing file type [eg latex, ps...] after "
 999                                          "--import switch")) << endl;
1000                 exit(1);
1001         }
1002         if (file.empty()) {
1003                 lyxerr << lyx::to_utf8(_("Missing filename for --import")) << endl;
1004                 exit(1);
1005         }
1006
1007         batch = "buffer-import " + type + ' ' + file;
1008         return 2;
1009 }
1010
1011 } // namespace anon
1012
1013
1014 bool LyX::easyParse(int & argc, char * argv[])
1015 {
1016         std::map<string, cmd_helper> cmdmap;
1017
1018         cmdmap["-dbg"] = parse_dbg;
1019         cmdmap["-help"] = parse_help;
1020         cmdmap["--help"] = parse_help;
1021         cmdmap["-version"] = parse_version;
1022         cmdmap["--version"] = parse_version;
1023         cmdmap["-sysdir"] = parse_sysdir;
1024         cmdmap["-userdir"] = parse_userdir;
1025         cmdmap["-x"] = parse_execute;
1026         cmdmap["--execute"] = parse_execute;
1027         cmdmap["-e"] = parse_export;
1028         cmdmap["--export"] = parse_export;
1029         cmdmap["-i"] = parse_import;
1030         cmdmap["--import"] = parse_import;
1031
1032         for (int i = 1; i < argc; ++i) {
1033                 std::map<string, cmd_helper>::const_iterator it
1034                         = cmdmap.find(argv[i]);
1035
1036                 // check for X11 -geometry option
1037                 if (lyx::support::compare(argv[i], "-geometry") == 0)
1038                         geometryOption_ = true;
1039
1040                 // don't complain if not found - may be parsed later
1041                 if (it == cmdmap.end())
1042                         continue;
1043
1044                 string arg((i + 1 < argc) ? argv[i + 1] : "");
1045                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
1046
1047                 int const remove = 1 + it->second(arg, arg2);
1048
1049                 // Now, remove used arguments by shifting
1050                 // the following ones remove places down.
1051                 argc -= remove;
1052                 for (int j = i; j < argc; ++j)
1053                         argv[j] = argv[j + remove];
1054                 --i;
1055         }
1056
1057         batch_command = batch;
1058
1059         return is_gui;
1060 }