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 "lastfiles.h"
  32 #include "LColor.h"
  33 #include "lyxfunc.h"
  34 #include "lyxlex.h"
  35 #include "lyxrc.h"
  36 #include "lyxtextclasslist.h"
  37 #include "lyxserver.h"
  38 #include "MenuBackend.h"
  39 #include "mover.h"
  40 #include "ToolbarBackend.h"
  41
  42 #include "mathed/math_inset.h"
  43
  44 #include "frontends/Alert.h"
  45 #include "frontends/lyx_gui.h"
  46 #include "frontends/LyXView.h"
  47
  48 #include "support/FileInfo.h"
  49 #include "support/filetools.h"
  50 #include "support/lyxlib.h"
  51 #include "support/os.h"
  52 #include "support/path.h"
  53 #include "support/path_defines.h"
  54
  55 #include <boost/bind.hpp>
  56
  57 #include <iostream>
  58 #include <csignal>
  59
  60 using lyx::support::AddName;
  61 using lyx::support::AddPath;
  62 using lyx::support::bformat;
  63 using lyx::support::createDirectory;
  64 using lyx::support::createLyXTmpDir;
  65 using lyx::support::FileInfo;
  66 using lyx::support::FileSearch;
  67 using lyx::support::GetEnv;
  68 using lyx::support::i18nLibFileSearch;
  69 using lyx::support::LibFileSearch;
  70 using lyx::support::Path;
  71 using lyx::support::rtrim;
  72 using lyx::support::setLyxPaths;
  73 using lyx::support::system_lyxdir;
  74 using lyx::support::user_lyxdir;
  75
  76 using lyx::support::os::getTmpDir;
  77 using lyx::support::os::setTmpDir;
  78
  79 namespace os = lyx::support::os;
  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 void QuitLyX();
  93
  94 extern LyXServer * lyxserver;
  95
  96 // This is the global bufferlist object
  97 BufferList bufferlist;
  98
  99 // convenient to have it here.
 100 boost::scoped_ptr<kb_keymap> toplevel_keymap;
 101
 102 namespace {
 103
 104 void showFileError(string const & error)
 105 {
 106         Alert::warning(_("Could not read configuration file"),
 107                    bformat(_("Error while reading the configuration file\n%1$s.\n"
 108                      "Please check your installation."), error));
 109         exit(EXIT_FAILURE);
 110 }
 111
 112 } // namespace anon
 113
 114
 115 boost::scoped_ptr<LyX> LyX::singleton_;
 116
 117 void LyX::exec(int & argc, char * argv[])
 118 {
 119         BOOST_ASSERT(!singleton_.get());
 120         // We must return from this before launching the gui so that
 121         // other parts of the code can access singleton_ through
 122         // LyX::ref and LyX::cref.
 123         singleton_.reset(new LyX);
 124         // Start the real execution loop.
 125         singleton_->priv_exec(argc, argv);
 126 }
 127
 128
 129 LyX & LyX::ref()
 130 {
 131         BOOST_ASSERT(singleton_.get());
 132         return *singleton_.get();
 133 }
 134
 135
 136 LyX const & LyX::cref()
 137 {
 138         BOOST_ASSERT(singleton_.get());
 139         return *singleton_.get();
 140 }
 141
 142
 143 LyX::LyX()
 144         : first_start(false)
 145 {}
 146
 147
 148 LastFiles & LyX::lastfiles()
 149 {
 150         BOOST_ASSERT(lastfiles_.get());
 151         return *lastfiles_.get();
 152 }
 153
 154
 155 LastFiles const & LyX::lastfiles() const
 156 {
 157         BOOST_ASSERT(lastfiles_.get());
 158         return *lastfiles_.get();
 159 }
 160
 161
 162 void LyX::addLyXView(boost::shared_ptr<LyXView> const & lyxview)
 163 {
 164         views_.push_back(lyxview);
 165 }
 166
 167
 168 Buffer const * const LyX::updateInset(InsetBase const * inset) const
 169 {
 170         if (!inset)
 171                 return 0;
 172
 173         Buffer const * buffer_ptr = 0;
 174         ViewList::const_iterator it = views_.begin();
 175         ViewList::const_iterator const end = views_.end();
 176         for (; it != end; ++it) {
 177                 Buffer const * ptr = (*it)->updateInset(inset);
 178                 if (ptr)
 179                         buffer_ptr = ptr;
 180         }
 181         return buffer_ptr;
 182 }
 183
 184
 185 void LyX::priv_exec(int & argc, char * argv[])
 186 {
 187         // Here we need to parse the command line. At least
 188         // we need to parse for "-dbg" and "-help"
 189         bool const want_gui = easyParse(argc, argv);
 190
 191         if (want_gui)
 192                 lyx_gui::parse_init(argc, argv);
 193
 194         // check for any spurious extra arguments
 195         // other than documents
 196         for (int argi = 1; argi < argc ; ++argi) {
 197                 if (argv[argi][0] == '-') {
 198                         lyxerr << bformat(_("Wrong command line option `%1$s'. Exiting."),
 199                                 argv[argi]) << endl;
 200                         exit(1);
 201                 }
 202         }
 203
 204         // Initialization of LyX (reads lyxrc and more)
 205         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 206         init(want_gui);
 207         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 208
 209         if (want_gui)
 210                 lyx_gui::parse_lyxrc();
 211
 212         initMath();
 213
 214         vector<string> files;
 215
 216         for (int argi = argc - 1; argi >= 1; --argi)
 217                 files.push_back(argv[argi]);
 218
 219         if (first_start)
 220                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 221
 222         // Execute batch commands if available
 223         if (!batch_command.empty()) {
 224
 225                 lyxerr[Debug::INIT] << "About to handle -x '"
 226                        << batch_command << '\'' << endl;
 227
 228                 Buffer * last_loaded = 0;
 229
 230                 vector<string>::const_iterator it = files.begin();
 231                 vector<string>::const_iterator end = files.end();
 232
 233                 for (; it != end; ++it) {
 234                         // get absolute path of file and add ".lyx" to
 235                         // the filename if necessary
 236                         string s = FileSearch(string(), *it, "lyx");
 237                         if (s.empty()) {
 238                                 last_loaded = newFile(*it, string(), true);
 239                         } else {
 240                                 Buffer * buf = bufferlist.newBuffer(s, false);
 241                                 buf->error.connect(boost::bind(&LyX::printError, this, _1));
 242                                 if (loadLyXFile(buf, s))
 243                                         last_loaded = buf;
 244                                 else
 245                                         bufferlist.release(buf);
 246                         }
 247                 }
 248
 249                 // try to dispatch to last loaded buffer first
 250                 if (last_loaded) {
 251                         bool success = false;
 252                         if (last_loaded->dispatch(batch_command, &success)) {
 253                                 QuitLyX();
 254                                 exit(!success);
 255                         }
 256                 }
 257                 files.clear(); // the files are already loaded
 258         }
 259
 260         lyx_gui::start(batch_command, files);
 261 }
 262
 263
 264 extern "C" {
 265
 266 static void error_handler(int err_sig)
 267 {
 268         // Throw away any signals other than the first one received.
 269         static sig_atomic_t handling_error = false;
 270         if (handling_error)
 271                 return;
 272         handling_error = true;
 273
 274         // We have received a signal indicating a fatal error, so
 275         // try and save the data ASAP.
 276         LyX::cref().emergencyCleanup();
 277
 278         // These lyxerr calls may or may not work:
 279
 280         // Signals are asynchronous, so the main program may be in a very
 281         // fragile state when a signal is processed and thus while a signal
 282         // handler function executes.
 283         // In general, therefore, we should avoid performing any
 284         // I/O operations or calling most library and system functions from
 285         // signal handlers.
 286
 287         // This shouldn't matter here, however, as we've already invoked
 288         // emergencyCleanup.
 289         switch (err_sig) {
 290         case SIGHUP:
 291                 lyxerr << "\nlyx: SIGHUP signal caught\nBye." << endl;
 292                 break;
 293         case SIGFPE:
 294                 lyxerr << "\nlyx: SIGFPE signal caught\nBye." << endl;
 295                 break;
 296         case SIGSEGV:
 297                 lyxerr << "\nlyx: SIGSEGV signal caught\n"
 298                           "Sorry, you have found a bug in LyX. "
 299                           "Please read the bug-reporting instructions "
 300                           "in Help->Introduction and send us a bug report, "
 301                           "if necessary. Thanks !\nBye." << endl;
 302                 break;
 303         case SIGINT:
 304         case SIGTERM:
 305                 // no comments
 306                 break;
 307         }
 308
 309         // Deinstall the signal handlers
 310         signal(SIGHUP, SIG_DFL);
 311         signal(SIGINT, SIG_DFL);
 312         signal(SIGFPE, SIG_DFL);
 313         signal(SIGSEGV, SIG_DFL);
 314         signal(SIGTERM, SIG_DFL);
 315
 316         if (err_sig == SIGSEGV ||
 317             (err_sig != SIGHUP && !GetEnv("LYXDEBUG").empty()))
 318                 lyx::support::abort();
 319         exit(0);
 320 }
 321
 322 }
 323
 324
 325 void LyX::printError(ErrorItem const & ei)
 326 {
 327         std::cerr << _("LyX: ") << ei.error
 328                   << ':' << ei.description << std::endl;
 329
 330 }
 331
 332
 333 void LyX::init(bool gui)
 334 {
 335         signal(SIGHUP, error_handler);
 336         signal(SIGFPE, error_handler);
 337         signal(SIGSEGV, error_handler);
 338         signal(SIGINT, error_handler);
 339         signal(SIGTERM, error_handler);
 340         // SIGPIPE can be safely ignored.
 341
 342         bool const explicit_userdir = setLyxPaths();
 343
 344         // Check that user LyX directory is ok. We don't do that if
 345         // running in batch mode.
 346         if (gui) {
 347                 queryUserLyXDir(explicit_userdir);
 348         } else {
 349                 first_start = false;
 350         }
 351
 352         // Disable gui when easyparse says so
 353         lyx_gui::use_gui = gui;
 354
 355         if (lyxrc.template_path.empty()) {
 356                 lyxrc.template_path = AddPath(system_lyxdir(), "templates");
 357         }
 358
 359         if (lyxrc.lastfiles.empty()) {
 360                 lyxrc.lastfiles = AddName(user_lyxdir(), "lastfiles");
 361         }
 362
 363         if (lyxrc.roman_font_name.empty())
 364                 lyxrc.roman_font_name = lyx_gui::roman_font_name();
 365         if (lyxrc.sans_font_name.empty())
 366                 lyxrc.sans_font_name = lyx_gui::sans_font_name();
 367         if (lyxrc.typewriter_font_name.empty())
 368                 lyxrc.typewriter_font_name = lyx_gui::typewriter_font_name();
 369
 370         //
 371         // Read configuration files
 372         //
 373
 374         readRcFile("lyxrc.defaults");
 375         system_lyxrc = lyxrc;
 376         system_formats = formats;
 377         system_converters = converters;
 378         system_movers = movers;
 379         system_lcolor = lcolor;
 380
 381         string prefsfile = "preferences";
 382         // back compatibility to lyxs < 1.1.6
 383         if (LibFileSearch(string(), prefsfile).empty())
 384                 prefsfile = "lyxrc";
 385         if (!LibFileSearch(string(), prefsfile).empty())
 386                 readRcFile(prefsfile);
 387
 388         readEncodingsFile("encodings");
 389         readLanguagesFile("languages");
 390
 391         // Load the layouts
 392         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 393         LyXSetStyle();
 394
 395         if (gui) {
 396                 // Set up bindings
 397                 toplevel_keymap.reset(new kb_keymap);
 398                 defaultKeyBindings(toplevel_keymap.get());
 399                 toplevel_keymap->read(lyxrc.bind_file);
 400
 401                 // Read menus
 402                 readUIFile(lyxrc.ui_file);
 403         }
 404
 405         if (lyxerr.debugging(Debug::LYXRC))
 406                 lyxrc.print();
 407
 408         setTmpDir(createLyXTmpDir(lyxrc.tempdir_path));
 409         if (getTmpDir().empty()) {
 410                 Alert::error(_("Could not create temporary directory"),
 411                              bformat(_("Could not create a temporary directory in\n"
 412                                        "%1$s. Make sure that this\n"
 413                                        "path exists and is writable and try again."),
 414                                      lyxrc.tempdir_path));
 415                 // createLyXTmpDir() tries sufficiently hard to create a
 416                 // usable temp dir, so the probability to come here is
 417                 // close to zero. We therefore don't try to overcome this
 418                 // problem with e.g. asking the user for a new path and
 419                 // trying again but simply exit.
 420                 exit(EXIT_FAILURE);
 421         }
 422
 423         if (lyxerr.debugging(Debug::INIT)) {
 424                 lyxerr << "LyX tmp dir: `" << getTmpDir() << '\'' << endl;
 425         }
 426
 427         lyxerr[Debug::INIT] << "Reading lastfiles `"
 428                             << lyxrc.lastfiles << "'..." << endl;
 429         lastfiles_.reset(new LastFiles(lyxrc.lastfiles,
 430                                        lyxrc.check_lastfiles,
 431                                        lyxrc.num_lastfiles));
 432 }
 433
 434
 435 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 436 {
 437         kbmap->bind("Right", FuncRequest(LFUN_RIGHT));
 438         kbmap->bind("Left", FuncRequest(LFUN_LEFT));
 439         kbmap->bind("Up", FuncRequest(LFUN_UP));
 440         kbmap->bind("Down", FuncRequest(LFUN_DOWN));
 441
 442         kbmap->bind("Tab", FuncRequest(LFUN_CELL_FORWARD));
 443         kbmap->bind("ISO_Left_Tab", FuncRequest(LFUN_CELL_FORWARD));
 444
 445         kbmap->bind("Home", FuncRequest(LFUN_HOME));
 446         kbmap->bind("End", FuncRequest(LFUN_END));
 447         kbmap->bind("Prior", FuncRequest(LFUN_PRIOR));
 448         kbmap->bind("Next", FuncRequest(LFUN_NEXT));
 449
 450         kbmap->bind("Return", FuncRequest(LFUN_BREAKPARAGRAPH));
 451         //kbmap->bind("~C-~S-~M-nobreakspace", FuncRequest(LFUN_PROTECTEDSPACE));
 452
 453         kbmap->bind("Delete", FuncRequest(LFUN_DELETE));
 454         kbmap->bind("BackSpace", FuncRequest(LFUN_BACKSPACE));
 455
 456         // kbmap->bindings to enable the use of the numeric keypad
 457         // e.g. Num Lock set
 458         //kbmap->bind("KP_0", FuncRequest(LFUN_SELFINSERT));
 459         //kbmap->bind("KP_Decimal", FuncRequest(LFUN_SELFINSERT));
 460         kbmap->bind("KP_Enter", FuncRequest(LFUN_BREAKPARAGRAPH));
 461         //kbmap->bind("KP_1", FuncRequest(LFUN_SELFINSERT));
 462         //kbmap->bind("KP_2", FuncRequest(LFUN_SELFINSERT));
 463         //kbmap->bind("KP_3", FuncRequest(LFUN_SELFINSERT));
 464         //kbmap->bind("KP_4", FuncRequest(LFUN_SELFINSERT));
 465         //kbmap->bind("KP_5", FuncRequest(LFUN_SELFINSERT));
 466         //kbmap->bind("KP_6", FuncRequest(LFUN_SELFINSERT));
 467         //kbmap->bind("KP_Add", FuncRequest(LFUN_SELFINSERT));
 468         //kbmap->bind("KP_7", FuncRequest(LFUN_SELFINSERT));
 469         //kbmap->bind("KP_8", FuncRequest(LFUN_SELFINSERT));
 470         //kbmap->bind("KP_9", FuncRequest(LFUN_SELFINSERT));
 471         //kbmap->bind("KP_Divide", FuncRequest(LFUN_SELFINSERT));
 472         //kbmap->bind("KP_Multiply", FuncRequest(LFUN_SELFINSERT));
 473         //kbmap->bind("KP_Subtract", FuncRequest(LFUN_SELFINSERT));
 474         kbmap->bind("KP_Right", FuncRequest(LFUN_RIGHT));
 475         kbmap->bind("KP_Left", FuncRequest(LFUN_LEFT));
 476         kbmap->bind("KP_Up", FuncRequest(LFUN_UP));
 477         kbmap->bind("KP_Down", FuncRequest(LFUN_DOWN));
 478         kbmap->bind("KP_Home", FuncRequest(LFUN_HOME));
 479         kbmap->bind("KP_End", FuncRequest(LFUN_END));
 480         kbmap->bind("KP_Prior", FuncRequest(LFUN_PRIOR));
 481         kbmap->bind("KP_Next", FuncRequest(LFUN_NEXT));
 482
 483         kbmap->bind("C-Tab", FuncRequest(LFUN_CELL_SPLIT));
 484         kbmap->bind("S-Tab", FuncRequest(LFUN_CELL_BACKWARD));
 485         kbmap->bind("S-ISO_Left_Tab", FuncRequest(LFUN_CELL_BACKWARD));
 486 }
 487
 488
 489 void LyX::emergencyCleanup() const
 490 {
 491         // what to do about tmpfiles is non-obvious. we would
 492         // like to delete any we find, but our lyxdir might
 493         // contain documents etc. which might be helpful on
 494         // a crash
 495
 496         bufferlist.emergencyWriteAll();
 497         if (lyxserver)
 498                 lyxserver->emergencyCleanup();
 499 }
 500
 501
 502 void LyX::deadKeyBindings(kb_keymap * kbmap)
 503 {
 504         // bindKeyings for transparent handling of deadkeys
 505         // The keysyms are gotten from XFree86 X11R6
 506         kbmap->bind("~C-~S-~M-dead_acute", FuncRequest(LFUN_ACUTE));
 507         kbmap->bind("~C-~S-~M-dead_breve", FuncRequest(LFUN_BREVE));
 508         kbmap->bind("~C-~S-~M-dead_caron", FuncRequest(LFUN_CARON));
 509         kbmap->bind("~C-~S-~M-dead_cedilla", FuncRequest(LFUN_CEDILLA));
 510         kbmap->bind("~C-~S-~M-dead_abovering", FuncRequest(LFUN_CIRCLE));
 511         kbmap->bind("~C-~S-~M-dead_circumflex", FuncRequest(LFUN_CIRCUMFLEX));
 512         kbmap->bind("~C-~S-~M-dead_abovedot", FuncRequest(LFUN_DOT));
 513         kbmap->bind("~C-~S-~M-dead_grave", FuncRequest(LFUN_GRAVE));
 514         kbmap->bind("~C-~S-~M-dead_doubleacute", FuncRequest(LFUN_HUNG_UMLAUT));
 515         kbmap->bind("~C-~S-~M-dead_macron", FuncRequest(LFUN_MACRON));
 516         // nothing with this name
 517         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 518         kbmap->bind("~C-~S-~M-dead_tilde", FuncRequest(LFUN_TILDE));
 519         kbmap->bind("~C-~S-~M-dead_diaeresis", FuncRequest(LFUN_UMLAUT));
 520         // nothing with this name either...
 521         //kbmap->bind("~C-~S-~M-dead_underbar", FuncRequest(LFUN_UNDERBAR));
 522         kbmap->bind("~C-~S-~M-dead_belowdot", FuncRequest(LFUN_UNDERDOT));
 523         kbmap->bind("~C-~S-~M-dead_tie", FuncRequest(LFUN_TIE));
 524         kbmap->bind("~C-~S-~M-dead_ogonek",FuncRequest(LFUN_OGONEK));
 525 }
 526
 527
 528 void LyX::queryUserLyXDir(bool explicit_userdir)
 529 {
 530         string const configure_script = AddName(system_lyxdir(), "configure");
 531
 532         // Does user directory exist?
 533         FileInfo fileInfo(user_lyxdir());
 534         if (fileInfo.isOK() && fileInfo.isDir()) {
 535                 first_start = false;
 536                 FileInfo script(configure_script);
 537                 FileInfo defaults(AddName(user_lyxdir(), "lyxrc.defaults"));
 538                 if (defaults.isOK() && script.isOK()
 539                     && defaults.getModificationTime() < script.getModificationTime()) {
 540                         lyxerr << _("LyX: reconfiguring user directory")
 541                                << endl;
 542                         Path p(user_lyxdir());
 543                         ::system(configure_script.c_str());
 544                         lyxerr << "LyX: " << _("Done!") << endl;
 545                 }
 546                 return;
 547         }
 548
 549         first_start = !explicit_userdir;
 550
 551         lyxerr << bformat(_("LyX: Creating directory %1$s"
 552                                   " and running configure..."), user_lyxdir()) << endl;
 553
 554         if (!createDirectory(user_lyxdir(), 0755)) {
 555                 // Failed, let's use $HOME instead.
 556                 user_lyxdir(os::homepath());
 557                 lyxerr << bformat(_("Failed. Will use %1$s instead."),
 558                         user_lyxdir()) << endl;
 559                 return;
 560         }
 561
 562         // Run configure in user lyx directory
 563         Path p(user_lyxdir());
 564         ::system(configure_script.c_str());
 565         lyxerr << "LyX: " << _("Done!") << endl;
 566 }
 567
 568
 569 void LyX::readRcFile(string const & name)
 570 {
 571         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 572
 573         string const lyxrc_path = LibFileSearch(string(), name);
 574         if (!lyxrc_path.empty()) {
 575
 576                 lyxerr[Debug::INIT] << "Found " << name
 577                                     << " in " << lyxrc_path << endl;
 578
 579                 if (lyxrc.read(lyxrc_path) >= 0)
 580                         return;
 581         }
 582
 583         showFileError(name);
 584 }
 585
 586
 587 // Read the ui file `name'
 588 void LyX::readUIFile(string const & name)
 589 {
 590         enum Uitags {
 591                 ui_menuset = 1,
 592                 ui_toolbar,
 593                 ui_toolbars,
 594                 ui_include,
 595                 ui_last
 596         };
 597
 598         struct keyword_item uitags[ui_last - 1] = {
 599                 { "include", ui_include },
 600                 { "menuset", ui_menuset },
 601                 { "toolbar", ui_toolbar },
 602                 { "toolbars", ui_toolbars }
 603         };
 604
 605         // Ensure that a file is read only once (prevents include loops)
 606         static std::list<string> uifiles;
 607         std::list<string>::const_iterator it  = uifiles.begin();
 608         std::list<string>::const_iterator end = uifiles.end();
 609         it = std::find(it, end, name);
 610         if (it != end) {
 611                 lyxerr[Debug::INIT] << "UI file '" << name
 612                                     << "' has been read already. "
 613                                     << "Is this an include loop?"
 614                                     << endl;
 615                 return;
 616         }
 617
 618         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 619
 620         string const ui_path = LibFileSearch("ui", name, "ui");
 621
 622         if (ui_path.empty()) {
 623                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 624                 showFileError(name);
 625                 return;
 626         }
 627         uifiles.push_back(name);
 628
 629         lyxerr[Debug::INIT] << "Found " << name
 630                             << " in " << ui_path << endl;
 631         LyXLex lex(uitags, ui_last - 1);
 632         lex.setFile(ui_path);
 633         if (!lex.isOK()) {
 634                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 635                        << endl;
 636         }
 637
 638         if (lyxerr.debugging(Debug::PARSER))
 639                 lex.printTable(lyxerr);
 640
 641         while (lex.isOK()) {
 642                 switch (lex.lex()) {
 643                 case ui_include: {
 644                         lex.next(true);
 645                         string const file = lex.getString();
 646                         readUIFile(file);
 647                         break;
 648                 }
 649                 case ui_menuset:
 650                         menubackend.read(lex);
 651                         break;
 652
 653                 case ui_toolbar:
 654                         toolbarbackend.read(lex);
 655                         break;
 656
 657                 case ui_toolbars:
 658                         toolbarbackend.readToolbars(lex);
 659                         break;
 660
 661                 default:
 662                         if (!rtrim(lex.getString()).empty())
 663                                 lex.printError("LyX::ReadUIFile: "
 664                                                "Unknown menu tag: `$$Token'");
 665                         break;
 666                 }
 667         }
 668 }
 669
 670
 671 // Read the languages file `name'
 672 void LyX::readLanguagesFile(string const & name)
 673 {
 674         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 675
 676         string const lang_path = LibFileSearch(string(), name);
 677         if (lang_path.empty()) {
 678                 showFileError(name);
 679                 return;
 680         }
 681         languages.read(lang_path);
 682 }
 683
 684
 685 // Read the encodings file `name'
 686 void LyX::readEncodingsFile(string const & name)
 687 {
 688         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 689
 690         string const enc_path = LibFileSearch(string(), name);
 691         if (enc_path.empty()) {
 692                 showFileError(name);
 693                 return;
 694         }
 695         encodings.read(enc_path);
 696 }
 697
 698
 699 namespace {
 700
 701 bool is_gui = true;
 702 string batch;
 703
 704 /// return the the number of arguments consumed
 705 typedef boost::function<int(string const &, string const &)> cmd_helper;
 706
 707 int parse_dbg(string const & arg, string const &)
 708 {
 709         if (arg.empty()) {
 710                 lyxerr << _("List of supported debug flags:") << endl;
 711                 Debug::showTags(lyxerr);
 712                 exit(0);
 713         }
 714         lyxerr << bformat(_("Setting debug level to %1$s"), arg) << endl;
 715
 716         lyxerr.level(Debug::value(arg));
 717         Debug::showLevel(lyxerr, lyxerr.level());
 718         return 1;
 719 }
 720
 721
 722 int parse_help(string const &, string const &)
 723 {
 724         lyxerr <<
 725                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 726                   "Command line switches (case sensitive):\n"
 727                   "\t-help              summarize LyX usage\n"
 728                   "\t-userdir dir       try to set user directory to dir\n"
 729                   "\t-sysdir dir        try to set system directory to dir\n"
 730                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 731                   "\t-dbg feature[,feature]...\n"
 732                   "                  select the features to debug.\n"
 733                   "                  Type `lyx -dbg' to see the list of features\n"
 734                   "\t-x [--execute] command\n"
 735                   "                  where command is a lyx command.\n"
 736                   "\t-e [--export] fmt\n"
 737                   "                  where fmt is the export format of choice.\n"
 738                   "\t-i [--import] fmt file.xxx\n"
 739                   "                  where fmt is the import format of choice\n"
 740                   "                  and file.xxx is the file to be imported.\n"
 741                   "\t-version        summarize version and build info\n"
 742                   "Check the LyX man page for more details.") << endl;
 743         exit(0);
 744         return 0;
 745 }
 746
 747 int parse_version(string const &, string const &)
 748 {
 749         lyxerr << "LyX " << lyx_version
 750                << " of " << lyx_release_date << endl;
 751         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 752
 753         lyxerr << lyx_version_info << endl;
 754         exit(0);
 755         return 0;
 756 }
 757
 758 int parse_sysdir(string const & arg, string const &)
 759 {
 760         if (arg.empty()) {
 761                 lyxerr << _("Missing directory for -sysdir switch") << endl;
 762                 exit(1);
 763         }
 764         system_lyxdir(arg);
 765         return 1;
 766 }
 767
 768 int parse_userdir(string const & arg, string const &)
 769 {
 770         if (arg.empty()) {
 771                 lyxerr << _("Missing directory for -userdir switch") << endl;
 772                 exit(1);
 773         }
 774         user_lyxdir(arg);
 775         return 1;
 776 }
 777
 778 int parse_execute(string const & arg, string const &)
 779 {
 780         if (arg.empty()) {
 781                 lyxerr << _("Missing command string after --execute switch") << endl;
 782                 exit(1);
 783         }
 784         batch = arg;
 785         // Argh. Setting gui to false segfaults..
 786         // FIXME: when ? how ?
 787         // is_gui = false;
 788         return 1;
 789 }
 790
 791 int parse_export(string const & type, string const &)
 792 {
 793         if (type.empty()) {
 794                 lyxerr << _("Missing file type [eg latex, ps...] after "
 795                         "--export switch") << endl;
 796                 exit(1);
 797         }
 798         batch = "buffer-export " + type;
 799         is_gui = false;
 800         return 1;
 801 }
 802
 803 int parse_import(string const & type, string const & file)
 804 {
 805         if (type.empty()) {
 806                 lyxerr << _("Missing file type [eg latex, ps...] after "
 807                         "--import switch") << endl;
 808                 exit(1);
 809         }
 810         if (file.empty()) {
 811                 lyxerr << _("Missing filename for --import") << endl;
 812                 exit(1);
 813         }
 814
 815         batch = "buffer-import " + type + ' ' + file;
 816         return 2;
 817 }
 818
 819 } // namespace anon
 820
 821
 822 bool LyX::easyParse(int & argc, char * argv[])
 823 {
 824         std::map<string, cmd_helper> cmdmap;
 825
 826         cmdmap["-dbg"] = parse_dbg;
 827         cmdmap["-help"] = parse_help;
 828         cmdmap["--help"] = parse_help;
 829         cmdmap["-version"] = parse_version;
 830         cmdmap["--version"] = parse_version;
 831         cmdmap["-sysdir"] = parse_sysdir;
 832         cmdmap["-userdir"] = parse_userdir;
 833         cmdmap["-x"] = parse_execute;
 834         cmdmap["--execute"] = parse_execute;
 835         cmdmap["-e"] = parse_export;
 836         cmdmap["--export"] = parse_export;
 837         cmdmap["-i"] = parse_import;
 838         cmdmap["--import"] = parse_import;
 839
 840         for (int i = 1; i < argc; ++i) {
 841                 std::map<string, cmd_helper>::const_iterator it
 842                         = cmdmap.find(argv[i]);
 843
 844                 // don't complain if not found - may be parsed later
 845                 if (it == cmdmap.end())
 846                         continue;
 847
 848                 string arg((i + 1 < argc) ? argv[i + 1] : "");
 849                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
 850
 851                 int const remove = 1 + it->second(arg, arg2);
 852
 853                 // Now, remove used arguments by shifting
 854                 // the following ones remove places down.
 855                 argc -= remove;
 856                 for (int j = i; j < argc; ++j)
 857                         argv[j] = argv[j + remove];
 858                 --i;
 859         }
 860
 861         batch_command = batch;
 862
 863         return is_gui;
 864 }