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 "ToolbarBackend.h"
  40
  41 #include "frontends/Alert.h"
  42 #include "frontends/lyx_gui.h"
  43 #include "frontends/LyXView.h"
  44
  45 #include "support/FileInfo.h"
  46 #include "support/filetools.h"
  47 #include "support/lyxlib.h"
  48 #include "support/os.h"
  49 #include "support/path.h"
  50 #include "support/path_defines.h"
  51
  52 #include <boost/bind.hpp>
  53
  54 #include <iostream>
  55 #include <csignal>
  56
  57 using lyx::support::AddName;
  58 using lyx::support::AddPath;
  59 using lyx::support::bformat;
  60 using lyx::support::createDirectory;
  61 using lyx::support::createLyXTmpDir;
  62 using lyx::support::FileInfo;
  63 using lyx::support::FileSearch;
  64 using lyx::support::GetEnv;
  65 using lyx::support::GetEnvPath;
  66 using lyx::support::i18nLibFileSearch;
  67 using lyx::support::LibFileSearch;
  68 using lyx::support::Path;
  69 using lyx::support::rtrim;
  70 using lyx::support::setLyxPaths;
  71 using lyx::support::system_lyxdir;
  72 using lyx::support::user_lyxdir;
  73
  74 namespace os = lyx::support::os;
  75
  76 using std::endl;
  77 using std::string;
  78 using std::vector;
  79
  80 #ifndef CXX_GLOBAL_CSTD
  81 using std::exit;
  82 using std::signal;
  83 using std::system;
  84 #endif
  85
  86
  87 extern void QuitLyX();
  88
  89 extern LyXServer * lyxserver;
  90
  91 // This is the global bufferlist object
  92 BufferList bufferlist;
  93
  94 // convenient to have it here.
  95 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  96
  97 namespace {
  98
  99 void showFileError(string const & error)
 100 {
 101         Alert::warning(_("Could not read configuration file"),
 102                    bformat(_("Error while reading the configuration file\n%1$s.\n"
 103                      "Please check your installation."), error));
 104         exit(EXIT_FAILURE);
 105 }
 106
 107 } // namespace anon
 108
 109
 110 boost::scoped_ptr<LyX> LyX::singleton_;
 111
 112 void LyX::exec(int & argc, char * argv[])
 113 {
 114         BOOST_ASSERT(!singleton_.get());
 115         // We must return from this before launching the gui so that
 116         // other parts of the code can access singleton_ through
 117         // LyX::ref and LyX::cref.
 118         singleton_.reset(new LyX);
 119         // Start the real execution loop.
 120         singleton_->priv_exec(argc, argv);
 121 }
 122
 123
 124 LyX & LyX::ref()
 125 {
 126         BOOST_ASSERT(singleton_.get());
 127         return *singleton_.get();
 128 }
 129
 130
 131 LyX const & LyX::cref()
 132 {
 133         BOOST_ASSERT(singleton_.get());
 134         return *singleton_.get();
 135 }
 136
 137
 138 LyX::LyX()
 139         : first_start(false)
 140 {}
 141
 142
 143 LastFiles & LyX::lastfiles()
 144 {
 145         BOOST_ASSERT(lastfiles_.get());
 146         return *lastfiles_.get();
 147 }
 148
 149
 150 LastFiles const & LyX::lastfiles() const
 151 {
 152         BOOST_ASSERT(lastfiles_.get());
 153         return *lastfiles_.get();
 154 }
 155
 156
 157 void LyX::addLyXView(boost::shared_ptr<LyXView> const & lyxview)
 158 {
 159         views_.push_back(lyxview);
 160 }
 161
 162
 163 Buffer const * const LyX::updateInset(InsetOld const * inset) const
 164 {
 165         if (!inset)
 166                 return 0;
 167
 168         Buffer const * buffer_ptr = 0;
 169         ViewList::const_iterator it = views_.begin();
 170         ViewList::const_iterator const end = views_.end();
 171         for (; it != end; ++it) {
 172                 Buffer const * ptr = (*it)->updateInset(inset);
 173                 if (ptr)
 174                         buffer_ptr = ptr;
 175         }
 176         return buffer_ptr;
 177 }
 178
 179
 180 void LyX::priv_exec(int & argc, char * argv[])
 181 {
 182         // Here we need to parse the command line. At least
 183         // we need to parse for "-dbg" and "-help"
 184         bool const want_gui = easyParse(argc, argv);
 185
 186         if (want_gui)
 187                 lyx_gui::parse_init(argc, argv);
 188
 189         // check for any spurious extra arguments
 190         // other than documents
 191         for (int argi = 1; argi < argc ; ++argi) {
 192                 if (argv[argi][0] == '-') {
 193                         lyxerr << bformat(_("Wrong command line option `%1$s'. Exiting."),
 194                                 argv[argi]) << endl;
 195                         exit(1);
 196                 }
 197         }
 198
 199         // Initialization of LyX (reads lyxrc and more)
 200         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 201         init(want_gui);
 202         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 203
 204         if (want_gui)
 205                 lyx_gui::parse_lyxrc();
 206
 207         vector<string> files;
 208
 209         for (int argi = argc - 1; argi >= 1; --argi)
 210                 files.push_back(argv[argi]);
 211
 212         if (first_start)
 213                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 214
 215         // Execute batch commands if available
 216         if (!batch_command.empty()) {
 217
 218                 lyxerr[Debug::INIT] << "About to handle -x '"
 219                        << batch_command << '\'' << endl;
 220
 221                 Buffer * last_loaded = 0;
 222
 223                 vector<string>::const_iterator it = files.begin();
 224                 vector<string>::const_iterator end = files.end();
 225
 226                 for (; it != end; ++it) {
 227                         // get absolute path of file and add ".lyx" to
 228                         // the filename if necessary
 229                         string s = FileSearch(string(), *it, "lyx");
 230                         if (s.empty()) {
 231                                 last_loaded = newFile(*it, string(), true);
 232                         } else {
 233                                 Buffer * buf = bufferlist.newBuffer(s, false);
 234                                 buf->error.connect(boost::bind(&LyX::printError, this, _1));
 235                                 if (loadLyXFile(buf, s))
 236                                         last_loaded = buf;
 237                                 else
 238                                         bufferlist.release(buf);
 239                         }
 240                 }
 241
 242                 // try to dispatch to last loaded buffer first
 243                 if (last_loaded) {
 244                         bool success = false;
 245                         if (last_loaded->dispatch(batch_command, &success)) {
 246                                 QuitLyX();
 247                                 exit(!success);
 248                         }
 249                 }
 250                 files.clear(); // the files are already loaded
 251         }
 252
 253         lyx_gui::start(batch_command, files);
 254 }
 255
 256
 257 extern "C" {
 258
 259 static void error_handler(int err_sig)
 260 {
 261         // Throw away any signals other than the first one received.
 262         static sig_atomic_t handling_error = false;
 263         if (handling_error)
 264                 return;
 265         handling_error = true;
 266
 267         // We have received a signal indicating a fatal error, so
 268         // try and save the data ASAP.
 269         LyX::cref().emergencyCleanup();
 270
 271         // These lyxerr calls may or may not work:
 272
 273         // Signals are asynchronous, so the main program may be in a very
 274         // fragile state when a signal is processed and thus while a signal
 275         // handler function executes.
 276         // In general, therefore, we should avoid performing any
 277         // I/O operations or calling most library and system functions from
 278         // signal handlers.
 279
 280         // This shouldn't matter here, however, as we've already invoked
 281         // emergencyCleanup.
 282         switch (err_sig) {
 283         case SIGHUP:
 284                 lyxerr << "\nlyx: SIGHUP signal caught\nBye." << endl;
 285                 break;
 286         case SIGFPE:
 287                 lyxerr << "\nlyx: SIGFPE signal caught\nBye." << endl;
 288                 break;
 289         case SIGSEGV:
 290                 lyxerr << "\nlyx: SIGSEGV signal caught\n"
 291                           "Sorry, you have found a bug in LyX. "
 292                           "Please read the bug-reporting instructions "
 293                           "in Help->Introduction and send us a bug report, "
 294                           "if necessary. Thanks !\nBye." << endl;
 295                 break;
 296         case SIGINT:
 297         case SIGTERM:
 298                 // no comments
 299                 break;
 300         }
 301
 302         // Deinstall the signal handlers
 303         signal(SIGHUP, SIG_DFL);
 304         signal(SIGINT, SIG_DFL);
 305         signal(SIGFPE, SIG_DFL);
 306         signal(SIGSEGV, SIG_DFL);
 307         signal(SIGTERM, SIG_DFL);
 308
 309         if (err_sig == SIGSEGV ||
 310             (err_sig != SIGHUP && !GetEnv("LYXDEBUG").empty()))
 311                 lyx::support::abort();
 312         exit(0);
 313 }
 314
 315 }
 316
 317
 318 void LyX::printError(ErrorItem const & ei)
 319 {
 320         std::cerr << _("LyX: ") << ei.error
 321                   << ':' << ei.description << std::endl;
 322
 323 }
 324
 325
 326 void LyX::init(bool gui)
 327 {
 328         signal(SIGHUP, error_handler);
 329         signal(SIGFPE, error_handler);
 330         signal(SIGSEGV, error_handler);
 331         signal(SIGINT, error_handler);
 332         signal(SIGTERM, error_handler);
 333         // SIGPIPE can be safely ignored.
 334
 335         bool const explicit_userdir = setLyxPaths();
 336
 337         // Check that user LyX directory is ok. We don't do that if
 338         // running in batch mode.
 339         if (gui) {
 340                 queryUserLyXDir(explicit_userdir);
 341         } else {
 342                 first_start = false;
 343         }
 344
 345         // Disable gui when easyparse says so
 346         lyx_gui::use_gui = gui;
 347
 348         if (lyxrc.template_path.empty()) {
 349                 lyxrc.template_path = AddPath(system_lyxdir(), "templates");
 350         }
 351
 352         if (lyxrc.lastfiles.empty()) {
 353                 lyxrc.lastfiles = AddName(user_lyxdir(), "lastfiles");
 354         }
 355
 356         if (lyxrc.roman_font_name.empty())
 357                 lyxrc.roman_font_name = lyx_gui::roman_font_name();
 358         if (lyxrc.sans_font_name.empty())
 359                 lyxrc.sans_font_name = lyx_gui::sans_font_name();
 360         if (lyxrc.typewriter_font_name.empty())
 361                 lyxrc.typewriter_font_name = lyx_gui::typewriter_font_name();
 362
 363         //
 364         // Read configuration files
 365         //
 366
 367         readRcFile("lyxrc.defaults");
 368         system_lyxrc = lyxrc;
 369         system_formats = formats;
 370         system_converters = converters;
 371         system_lcolor = lcolor;
 372
 373         string prefsfile = "preferences";
 374         // back compatibility to lyxs < 1.1.6
 375         if (LibFileSearch(string(), prefsfile).empty())
 376                 prefsfile = "lyxrc";
 377         if (!LibFileSearch(string(), prefsfile).empty())
 378                 readRcFile(prefsfile);
 379
 380         readEncodingsFile("encodings");
 381         readLanguagesFile("languages");
 382
 383         // Load the layouts
 384         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 385         LyXSetStyle();
 386
 387         if (gui) {
 388                 // Set up bindings
 389                 toplevel_keymap.reset(new kb_keymap);
 390                 defaultKeyBindings(toplevel_keymap.get());
 391                 toplevel_keymap->read(lyxrc.bind_file);
 392
 393                 // Read menus
 394                 readUIFile(lyxrc.ui_file);
 395         }
 396
 397         if (lyxerr.debugging(Debug::LYXRC))
 398                 lyxrc.print();
 399
 400         os::setTmpDir(createLyXTmpDir(lyxrc.tempdir_path));
 401         if (os::getTmpDir().empty()) {
 402                 Alert::error(_("Could not create temporary directory"),
 403                              bformat(_("Could not create a temporary directory in\n"
 404                                        "%1$s. Make sure that this\n"
 405                                        "path exists and is writable and try again."),
 406                                      lyxrc.tempdir_path));
 407                 // createLyXTmpDir() tries sufficiently hard to create a
 408                 // usable temp dir, so the probability to come here is
 409                 // close to zero. We therefore don't try to overcome this
 410                 // problem with e.g. asking the user for a new path and
 411                 // trying again but simply exit.
 412                 exit(EXIT_FAILURE);
 413         }
 414
 415         if (lyxerr.debugging(Debug::INIT)) {
 416                 lyxerr << "LyX tmp dir: `" << os::getTmpDir() << '\'' << endl;
 417         }
 418
 419         lyxerr[Debug::INIT] << "Reading lastfiles `"
 420                             << lyxrc.lastfiles << "'..." << endl;
 421         lastfiles_.reset(new LastFiles(lyxrc.lastfiles,
 422                                        lyxrc.check_lastfiles,
 423                                        lyxrc.num_lastfiles));
 424 }
 425
 426
 427 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 428 {
 429         kbmap->bind("Right", FuncRequest(LFUN_RIGHT));
 430         kbmap->bind("Left", FuncRequest(LFUN_LEFT));
 431         kbmap->bind("Up", FuncRequest(LFUN_UP));
 432         kbmap->bind("Down", FuncRequest(LFUN_DOWN));
 433
 434         kbmap->bind("Tab", FuncRequest(LFUN_CELL_FORWARD));
 435         kbmap->bind("ISO_Left_Tab", FuncRequest(LFUN_CELL_FORWARD));
 436
 437         kbmap->bind("Home", FuncRequest(LFUN_HOME));
 438         kbmap->bind("End", FuncRequest(LFUN_END));
 439         kbmap->bind("Prior", FuncRequest(LFUN_PRIOR));
 440         kbmap->bind("Next", FuncRequest(LFUN_NEXT));
 441
 442         kbmap->bind("Return", FuncRequest(LFUN_BREAKPARAGRAPH));
 443         //kbmap->bind("~C-~S-~M-nobreakspace", FuncRequest(LFUN_PROTECTEDSPACE));
 444
 445         kbmap->bind("Delete", FuncRequest(LFUN_DELETE));
 446         kbmap->bind("BackSpace", FuncRequest(LFUN_BACKSPACE));
 447
 448         // kbmap->bindings to enable the use of the numeric keypad
 449         // e.g. Num Lock set
 450         //kbmap->bind("KP_0", FuncRequest(LFUN_SELFINSERT));
 451         //kbmap->bind("KP_Decimal", FuncRequest(LFUN_SELFINSERT));
 452         kbmap->bind("KP_Enter", FuncRequest(LFUN_BREAKPARAGRAPH));
 453         //kbmap->bind("KP_1", FuncRequest(LFUN_SELFINSERT));
 454         //kbmap->bind("KP_2", FuncRequest(LFUN_SELFINSERT));
 455         //kbmap->bind("KP_3", FuncRequest(LFUN_SELFINSERT));
 456         //kbmap->bind("KP_4", FuncRequest(LFUN_SELFINSERT));
 457         //kbmap->bind("KP_5", FuncRequest(LFUN_SELFINSERT));
 458         //kbmap->bind("KP_6", FuncRequest(LFUN_SELFINSERT));
 459         //kbmap->bind("KP_Add", FuncRequest(LFUN_SELFINSERT));
 460         //kbmap->bind("KP_7", FuncRequest(LFUN_SELFINSERT));
 461         //kbmap->bind("KP_8", FuncRequest(LFUN_SELFINSERT));
 462         //kbmap->bind("KP_9", FuncRequest(LFUN_SELFINSERT));
 463         //kbmap->bind("KP_Divide", FuncRequest(LFUN_SELFINSERT));
 464         //kbmap->bind("KP_Multiply", FuncRequest(LFUN_SELFINSERT));
 465         //kbmap->bind("KP_Subtract", FuncRequest(LFUN_SELFINSERT));
 466         kbmap->bind("KP_Right", FuncRequest(LFUN_RIGHT));
 467         kbmap->bind("KP_Left", FuncRequest(LFUN_LEFT));
 468         kbmap->bind("KP_Up", FuncRequest(LFUN_UP));
 469         kbmap->bind("KP_Down", FuncRequest(LFUN_DOWN));
 470         kbmap->bind("KP_Home", FuncRequest(LFUN_HOME));
 471         kbmap->bind("KP_End", FuncRequest(LFUN_END));
 472         kbmap->bind("KP_Prior", FuncRequest(LFUN_PRIOR));
 473         kbmap->bind("KP_Next", FuncRequest(LFUN_NEXT));
 474
 475         kbmap->bind("C-Tab", FuncRequest(LFUN_CELL_SPLIT));
 476         kbmap->bind("S-Tab", FuncRequest(LFUN_CELL_BACKWARD));
 477         kbmap->bind("S-ISO_Left_Tab", FuncRequest(LFUN_CELL_BACKWARD));
 478 }
 479
 480
 481 void LyX::emergencyCleanup() const
 482 {
 483         // what to do about tmpfiles is non-obvious. we would
 484         // like to delete any we find, but our lyxdir might
 485         // contain documents etc. which might be helpful on
 486         // a crash
 487
 488         bufferlist.emergencyWriteAll();
 489         if (lyxserver)
 490                 lyxserver->emergencyCleanup();
 491 }
 492
 493
 494 void LyX::deadKeyBindings(kb_keymap * kbmap)
 495 {
 496         // bindKeyings for transparent handling of deadkeys
 497         // The keysyms are gotten from XFree86 X11R6
 498         kbmap->bind("~C-~S-~M-dead_acute", FuncRequest(LFUN_ACUTE));
 499         kbmap->bind("~C-~S-~M-dead_breve", FuncRequest(LFUN_BREVE));
 500         kbmap->bind("~C-~S-~M-dead_caron", FuncRequest(LFUN_CARON));
 501         kbmap->bind("~C-~S-~M-dead_cedilla", FuncRequest(LFUN_CEDILLA));
 502         kbmap->bind("~C-~S-~M-dead_abovering", FuncRequest(LFUN_CIRCLE));
 503         kbmap->bind("~C-~S-~M-dead_circumflex", FuncRequest(LFUN_CIRCUMFLEX));
 504         kbmap->bind("~C-~S-~M-dead_abovedot", FuncRequest(LFUN_DOT));
 505         kbmap->bind("~C-~S-~M-dead_grave", FuncRequest(LFUN_GRAVE));
 506         kbmap->bind("~C-~S-~M-dead_doubleacute", FuncRequest(LFUN_HUNG_UMLAUT));
 507         kbmap->bind("~C-~S-~M-dead_macron", FuncRequest(LFUN_MACRON));
 508         // nothing with this name
 509         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 510         kbmap->bind("~C-~S-~M-dead_tilde", FuncRequest(LFUN_TILDE));
 511         kbmap->bind("~C-~S-~M-dead_diaeresis", FuncRequest(LFUN_UMLAUT));
 512         // nothing with this name either...
 513         //kbmap->bind("~C-~S-~M-dead_underbar", FuncRequest(LFUN_UNDERBAR));
 514         kbmap->bind("~C-~S-~M-dead_belowdot", FuncRequest(LFUN_UNDERDOT));
 515         kbmap->bind("~C-~S-~M-dead_tie", FuncRequest(LFUN_TIE));
 516         kbmap->bind("~C-~S-~M-dead_ogonek",FuncRequest(LFUN_OGONEK));
 517 }
 518
 519
 520 void LyX::queryUserLyXDir(bool explicit_userdir)
 521 {
 522         string const configure_script = AddName(system_lyxdir(), "configure");
 523
 524         // Does user directory exist?
 525         FileInfo fileInfo(user_lyxdir());
 526         if (fileInfo.isOK() && fileInfo.isDir()) {
 527                 first_start = false;
 528                 FileInfo script(configure_script);
 529                 FileInfo defaults(AddName(user_lyxdir(), "lyxrc.defaults"));
 530                 if (defaults.isOK() && script.isOK()
 531                     && defaults.getModificationTime() < script.getModificationTime()) {
 532                         lyxerr << _("LyX: reconfiguring user directory")
 533                                << endl;
 534                         Path p(user_lyxdir());
 535                         ::system(configure_script.c_str());
 536                         lyxerr << "LyX: " << _("Done!") << endl;
 537                 }
 538                 return;
 539         }
 540
 541         first_start = !explicit_userdir;
 542
 543         lyxerr << bformat(_("LyX: Creating directory %1$s"
 544                                   " and running configure..."), user_lyxdir()) << endl;
 545
 546         if (!createDirectory(user_lyxdir(), 0755)) {
 547                 // Failed, let's use $HOME instead.
 548                 user_lyxdir(GetEnvPath("HOME"));
 549                 lyxerr << bformat(_("Failed. Will use %1$s instead."),
 550                         user_lyxdir()) << endl;
 551                 return;
 552         }
 553
 554         // Run configure in user lyx directory
 555         Path p(user_lyxdir());
 556         ::system(configure_script.c_str());
 557         lyxerr << "LyX: " << _("Done!") << endl;
 558 }
 559
 560
 561 void LyX::readRcFile(string const & name)
 562 {
 563         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 564
 565         string const lyxrc_path = LibFileSearch(string(), name);
 566         if (!lyxrc_path.empty()) {
 567
 568                 lyxerr[Debug::INIT] << "Found " << name
 569                                     << " in " << lyxrc_path << endl;
 570
 571                 if (lyxrc.read(lyxrc_path) >= 0)
 572                         return;
 573         }
 574
 575         showFileError(name);
 576 }
 577
 578
 579 // Read the ui file `name'
 580 void LyX::readUIFile(string const & name)
 581 {
 582         enum Uitags {
 583                 ui_menuset = 1,
 584                 ui_toolbar,
 585                 ui_toolbars,
 586                 ui_include,
 587                 ui_last
 588         };
 589
 590         struct keyword_item uitags[ui_last - 1] = {
 591                 { "include", ui_include },
 592                 { "menuset", ui_menuset },
 593                 { "toolbar", ui_toolbar },
 594                 { "toolbars", ui_toolbars }
 595         };
 596
 597         // Ensure that a file is read only once (prevents include loops)
 598         static std::list<string> uifiles;
 599         std::list<string>::const_iterator it  = uifiles.begin();
 600         std::list<string>::const_iterator end = uifiles.end();
 601         it = std::find(it, end, name);
 602         if (it != end) {
 603                 lyxerr[Debug::INIT] << "UI file '" << name
 604                                     << "' has been read already. "
 605                                     << "Is this an include loop?"
 606                                     << endl;
 607                 return;
 608         }
 609
 610         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 611
 612         string const ui_path = LibFileSearch("ui", name, "ui");
 613
 614         if (ui_path.empty()) {
 615                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 616                 showFileError(name);
 617                 return;
 618         }
 619         uifiles.push_back(name);
 620
 621         lyxerr[Debug::INIT] << "Found " << name
 622                             << " in " << ui_path << endl;
 623         LyXLex lex(uitags, ui_last - 1);
 624         lex.setFile(ui_path);
 625         if (!lex.isOK()) {
 626                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 627                        << endl;
 628         }
 629
 630         if (lyxerr.debugging(Debug::PARSER))
 631                 lex.printTable(lyxerr);
 632
 633         while (lex.isOK()) {
 634                 switch (lex.lex()) {
 635                 case ui_include: {
 636                         lex.next(true);
 637                         string const file = lex.getString();
 638                         readUIFile(file);
 639                         break;
 640                 }
 641                 case ui_menuset:
 642                         menubackend.read(lex);
 643                         break;
 644
 645                 case ui_toolbar:
 646                         toolbarbackend.read(lex);
 647                         break;
 648
 649                 case ui_toolbars:
 650                         toolbarbackend.readToolbars(lex);
 651                         break;
 652
 653                 default:
 654                         if (!rtrim(lex.getString()).empty())
 655                                 lex.printError("LyX::ReadUIFile: "
 656                                                "Unknown menu tag: `$$Token'");
 657                         break;
 658                 }
 659         }
 660 }
 661
 662
 663 // Read the languages file `name'
 664 void LyX::readLanguagesFile(string const & name)
 665 {
 666         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 667
 668         string const lang_path = LibFileSearch(string(), name);
 669         if (lang_path.empty()) {
 670                 showFileError(name);
 671                 return;
 672         }
 673         languages.read(lang_path);
 674 }
 675
 676
 677 // Read the encodings file `name'
 678 void LyX::readEncodingsFile(string const & name)
 679 {
 680         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 681
 682         string const enc_path = LibFileSearch(string(), name);
 683         if (enc_path.empty()) {
 684                 showFileError(name);
 685                 return;
 686         }
 687         encodings.read(enc_path);
 688 }
 689
 690
 691 namespace {
 692
 693 bool is_gui = true;
 694 string batch;
 695
 696 /// return the the number of arguments consumed
 697 typedef boost::function<int(string const &, string const &)> cmd_helper;
 698
 699 int parse_dbg(string const & arg, string const &)
 700 {
 701         if (arg.empty()) {
 702                 lyxerr << _("List of supported debug flags:") << endl;
 703                 Debug::showTags(lyxerr);
 704                 exit(0);
 705         }
 706         lyxerr << bformat(_("Setting debug level to %1$s"), arg) << endl;
 707
 708         lyxerr.level(Debug::value(arg));
 709         Debug::showLevel(lyxerr, lyxerr.level());
 710         return 1;
 711 }
 712
 713
 714 int parse_help(string const &, string const &)
 715 {
 716         lyxerr <<
 717                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 718                   "Command line switches (case sensitive):\n"
 719                   "\t-help              summarize LyX usage\n"
 720                   "\t-userdir dir       try to set user directory to dir\n"
 721                   "\t-sysdir dir        try to set system directory to dir\n"
 722                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 723                   "\t-dbg feature[,feature]...\n"
 724                   "                  select the features to debug.\n"
 725                   "                  Type `lyx -dbg' to see the list of features\n"
 726                   "\t-x [--execute] command\n"
 727                   "                  where command is a lyx command.\n"
 728                   "\t-e [--export] fmt\n"
 729                   "                  where fmt is the export format of choice.\n"
 730                   "\t-i [--import] fmt file.xxx\n"
 731                   "                  where fmt is the import format of choice\n"
 732                   "                  and file.xxx is the file to be imported.\n"
 733                   "\t-version        summarize version and build info\n"
 734                   "Check the LyX man page for more details.") << endl;
 735         exit(0);
 736         return 0;
 737 }
 738
 739 int parse_version(string const &, string const &)
 740 {
 741         lyxerr << "LyX " << lyx_version
 742                << " of " << lyx_release_date << endl;
 743         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 744
 745         lyxerr << lyx_version_info << endl;
 746         exit(0);
 747         return 0;
 748 }
 749
 750 int parse_sysdir(string const & arg, string const &)
 751 {
 752         if (arg.empty()) {
 753                 lyxerr << _("Missing directory for -sysdir switch") << endl;
 754                 exit(1);
 755         }
 756         system_lyxdir(arg);
 757         return 1;
 758 }
 759
 760 int parse_userdir(string const & arg, string const &)
 761 {
 762         if (arg.empty()) {
 763                 lyxerr << _("Missing directory for -userdir switch") << endl;
 764                 exit(1);
 765         }
 766         user_lyxdir(arg);
 767         return 1;
 768 }
 769
 770 int parse_execute(string const & arg, string const &)
 771 {
 772         if (arg.empty()) {
 773                 lyxerr << _("Missing command string after --execute switch") << endl;
 774                 exit(1);
 775         }
 776         batch = arg;
 777         // Argh. Setting gui to false segfaults..
 778         // FIXME: when ? how ?
 779         // is_gui = false;
 780         return 1;
 781 }
 782
 783 int parse_export(string const & type, string const &)
 784 {
 785         if (type.empty()) {
 786                 lyxerr << _("Missing file type [eg latex, ps...] after "
 787                         "--export switch") << endl;
 788                 exit(1);
 789         }
 790         batch = "buffer-export " + type;
 791         is_gui = false;
 792         return 1;
 793 }
 794
 795 int parse_import(string const & type, string const & file)
 796 {
 797         if (type.empty()) {
 798                 lyxerr << _("Missing file type [eg latex, ps...] after "
 799                         "--import switch") << endl;
 800                 exit(1);
 801         }
 802         if (file.empty()) {
 803                 lyxerr << _("Missing filename for --import") << endl;
 804                 exit(1);
 805         }
 806
 807         batch = "buffer-import " + type + ' ' + file;
 808         return 2;
 809 }
 810
 811 } // namespace anon
 812
 813
 814 bool LyX::easyParse(int & argc, char * argv[])
 815 {
 816         std::map<string, cmd_helper> cmdmap;
 817
 818         cmdmap["-dbg"] = parse_dbg;
 819         cmdmap["-help"] = parse_help;
 820         cmdmap["--help"] = parse_help;
 821         cmdmap["-version"] = parse_version;
 822         cmdmap["--version"] = parse_version;
 823         cmdmap["-sysdir"] = parse_sysdir;
 824         cmdmap["-userdir"] = parse_userdir;
 825         cmdmap["-x"] = parse_execute;
 826         cmdmap["--execute"] = parse_execute;
 827         cmdmap["-e"] = parse_export;
 828         cmdmap["--export"] = parse_export;
 829         cmdmap["-i"] = parse_import;
 830         cmdmap["--import"] = parse_import;
 831
 832         for (int i = 1; i < argc; ++i) {
 833                 std::map<string, cmd_helper>::const_iterator it
 834                         = cmdmap.find(argv[i]);
 835
 836                 // don't complain if not found - may be parsed later
 837                 if (it == cmdmap.end())
 838                         continue;
 839
 840                 string arg((i + 1 < argc) ? argv[i + 1] : "");
 841                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
 842
 843                 int const remove = 1 + it->second(arg, arg2);
 844
 845                 // Now, remove used arguments by shifting
 846                 // the following ones remove places down.
 847                 argc -= remove;
 848                 for (int j = i; j < argc; ++j)
 849                         argv[j] = argv[j + remove];
 850                 --i;
 851         }
 852
 853         batch_command = batch;
 854
 855         return is_gui;
 856 }