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::QuoteName;
  72 using lyx::support::rtrim;
  73 using lyx::support::setLyxPaths;
  74 using lyx::support::system_lyxdir;
  75 using lyx::support::user_lyxdir;
  76
  77 using lyx::support::os::getTmpDir;
  78 using lyx::support::os::setTmpDir;
  79
  80 namespace os = lyx::support::os;
  81
  82 using std::endl;
  83 using std::string;
  84 using std::vector;
  85
  86 #ifndef CXX_GLOBAL_CSTD
  87 using std::exit;
  88 using std::signal;
  89 using std::system;
  90 #endif
  91
  92
  93 extern void QuitLyX();
  94
  95 extern LyXServer * lyxserver;
  96
  97 // This is the global bufferlist object
  98 BufferList bufferlist;
  99
 100 // convenient to have it here.
 101 boost::scoped_ptr<kb_keymap> toplevel_keymap;
 102
 103 namespace {
 104
 105 void showFileError(string const & error)
 106 {
 107         Alert::warning(_("Could not read configuration file"),
 108                    bformat(_("Error while reading the configuration file\n%1$s.\n"
 109                      "Please check your installation."), error));
 110         exit(EXIT_FAILURE);
 111 }
 112
 113 } // namespace anon
 114
 115
 116 boost::scoped_ptr<LyX> LyX::singleton_;
 117
 118 void LyX::exec(int & argc, char * argv[])
 119 {
 120         BOOST_ASSERT(!singleton_.get());
 121         // We must return from this before launching the gui so that
 122         // other parts of the code can access singleton_ through
 123         // LyX::ref and LyX::cref.
 124         singleton_.reset(new LyX);
 125         // Start the real execution loop.
 126         singleton_->priv_exec(argc, argv);
 127 }
 128
 129
 130 LyX & LyX::ref()
 131 {
 132         BOOST_ASSERT(singleton_.get());
 133         return *singleton_.get();
 134 }
 135
 136
 137 LyX const & LyX::cref()
 138 {
 139         BOOST_ASSERT(singleton_.get());
 140         return *singleton_.get();
 141 }
 142
 143
 144 LyX::LyX()
 145         : first_start(false)
 146 {}
 147
 148
 149 LastFiles & LyX::lastfiles()
 150 {
 151         BOOST_ASSERT(lastfiles_.get());
 152         return *lastfiles_.get();
 153 }
 154
 155
 156 LastFiles const & LyX::lastfiles() const
 157 {
 158         BOOST_ASSERT(lastfiles_.get());
 159         return *lastfiles_.get();
 160 }
 161
 162
 163 void LyX::addLyXView(boost::shared_ptr<LyXView> const & lyxview)
 164 {
 165         views_.push_back(lyxview);
 166 }
 167
 168
 169 Buffer const * const LyX::updateInset(InsetBase const * inset) const
 170 {
 171         if (!inset)
 172                 return 0;
 173
 174         Buffer const * buffer_ptr = 0;
 175         ViewList::const_iterator it = views_.begin();
 176         ViewList::const_iterator const end = views_.end();
 177         for (; it != end; ++it) {
 178                 Buffer const * ptr = (*it)->updateInset(inset);
 179                 if (ptr)
 180                         buffer_ptr = ptr;
 181         }
 182         return buffer_ptr;
 183 }
 184
 185
 186 void LyX::priv_exec(int & argc, char * argv[])
 187 {
 188         // Here we need to parse the command line. At least
 189         // we need to parse for "-dbg" and "-help"
 190         bool const want_gui = easyParse(argc, argv);
 191
 192         if (want_gui)
 193                 lyx_gui::parse_init(argc, argv);
 194
 195         // check for any spurious extra arguments
 196         // other than documents
 197         for (int argi = 1; argi < argc ; ++argi) {
 198                 if (argv[argi][0] == '-') {
 199                         lyxerr << bformat(_("Wrong command line option `%1$s'. Exiting."),
 200                                 argv[argi]) << endl;
 201                         exit(1);
 202                 }
 203         }
 204
 205         // Initialization of LyX (reads lyxrc and more)
 206         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 207         init(want_gui);
 208         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 209
 210         if (want_gui)
 211                 lyx_gui::parse_lyxrc();
 212
 213         initMath();
 214
 215         vector<string> files;
 216
 217         for (int argi = argc - 1; argi >= 1; --argi)
 218                 files.push_back(argv[argi]);
 219
 220         if (first_start)
 221                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 222
 223         // Execute batch commands if available
 224         if (!batch_command.empty()) {
 225
 226                 lyxerr[Debug::INIT] << "About to handle -x '"
 227                        << batch_command << '\'' << endl;
 228
 229                 Buffer * last_loaded = 0;
 230
 231                 vector<string>::const_iterator it = files.begin();
 232                 vector<string>::const_iterator end = files.end();
 233
 234                 for (; it != end; ++it) {
 235                         // get absolute path of file and add ".lyx" to
 236                         // the filename if necessary
 237                         string s = FileSearch(string(), *it, "lyx");
 238                         if (s.empty()) {
 239                                 last_loaded = newFile(*it, string(), true);
 240                         } else {
 241                                 Buffer * buf = bufferlist.newBuffer(s, false);
 242                                 buf->error.connect(boost::bind(&LyX::printError, this, _1));
 243                                 if (loadLyXFile(buf, s))
 244                                         last_loaded = buf;
 245                                 else
 246                                         bufferlist.release(buf);
 247                         }
 248                 }
 249
 250                 // try to dispatch to last loaded buffer first
 251                 if (last_loaded) {
 252                         bool success = false;
 253                         if (last_loaded->dispatch(batch_command, &success)) {
 254                                 QuitLyX();
 255                                 exit(!success);
 256                         }
 257                 }
 258                 files.clear(); // the files are already loaded
 259         }
 260
 261         lyx_gui::start(batch_command, files);
 262 }
 263
 264
 265 extern "C" {
 266
 267 static void error_handler(int err_sig)
 268 {
 269         // Throw away any signals other than the first one received.
 270         static sig_atomic_t handling_error = false;
 271         if (handling_error)
 272                 return;
 273         handling_error = true;
 274
 275         // We have received a signal indicating a fatal error, so
 276         // try and save the data ASAP.
 277         LyX::cref().emergencyCleanup();
 278
 279         // These lyxerr calls may or may not work:
 280
 281         // Signals are asynchronous, so the main program may be in a very
 282         // fragile state when a signal is processed and thus while a signal
 283         // handler function executes.
 284         // In general, therefore, we should avoid performing any
 285         // I/O operations or calling most library and system functions from
 286         // signal handlers.
 287
 288         // This shouldn't matter here, however, as we've already invoked
 289         // emergencyCleanup.
 290         switch (err_sig) {
 291         case SIGHUP:
 292                 lyxerr << "\nlyx: SIGHUP signal caught\nBye." << endl;
 293                 break;
 294         case SIGFPE:
 295                 lyxerr << "\nlyx: SIGFPE signal caught\nBye." << endl;
 296                 break;
 297         case SIGSEGV:
 298                 lyxerr << "\nlyx: SIGSEGV signal caught\n"
 299                           "Sorry, you have found a bug in LyX. "
 300                           "Please read the bug-reporting instructions "
 301                           "in Help->Introduction and send us a bug report, "
 302                           "if necessary. Thanks !\nBye." << endl;
 303                 break;
 304         case SIGINT:
 305         case SIGTERM:
 306                 // no comments
 307                 break;
 308         }
 309
 310         // Deinstall the signal handlers
 311         signal(SIGHUP, SIG_DFL);
 312         signal(SIGINT, SIG_DFL);
 313         signal(SIGFPE, SIG_DFL);
 314         signal(SIGSEGV, SIG_DFL);
 315         signal(SIGTERM, SIG_DFL);
 316
 317         if (err_sig == SIGSEGV ||
 318             (err_sig != SIGHUP && !GetEnv("LYXDEBUG").empty()))
 319                 lyx::support::abort();
 320         exit(0);
 321 }
 322
 323 }
 324
 325
 326 void LyX::printError(ErrorItem const & ei)
 327 {
 328         std::cerr << _("LyX: ") << ei.error
 329                   << ':' << ei.description << std::endl;
 330
 331 }
 332
 333
 334 void LyX::init(bool gui)
 335 {
 336         signal(SIGHUP, error_handler);
 337         signal(SIGFPE, error_handler);
 338         signal(SIGSEGV, error_handler);
 339         signal(SIGINT, error_handler);
 340         signal(SIGTERM, error_handler);
 341         // SIGPIPE can be safely ignored.
 342
 343         bool const explicit_userdir = setLyxPaths();
 344
 345         // Check that user LyX directory is ok. We don't do that if
 346         // running in batch mode.
 347         if (gui) {
 348                 queryUserLyXDir(explicit_userdir);
 349         } else {
 350                 first_start = false;
 351         }
 352
 353         // Disable gui when easyparse says so
 354         lyx_gui::use_gui = gui;
 355
 356         if (lyxrc.template_path.empty()) {
 357                 lyxrc.template_path = AddPath(system_lyxdir(), "templates");
 358         }
 359
 360         if (lyxrc.lastfiles.empty()) {
 361                 lyxrc.lastfiles = AddName(user_lyxdir(), "lastfiles");
 362         }
 363
 364         if (lyxrc.roman_font_name.empty())
 365                 lyxrc.roman_font_name = lyx_gui::roman_font_name();
 366         if (lyxrc.sans_font_name.empty())
 367                 lyxrc.sans_font_name = lyx_gui::sans_font_name();
 368         if (lyxrc.typewriter_font_name.empty())
 369                 lyxrc.typewriter_font_name = lyx_gui::typewriter_font_name();
 370
 371         //
 372         // Read configuration files
 373         //
 374
 375         readRcFile("lyxrc.defaults");
 376         system_lyxrc = lyxrc;
 377         system_formats = formats;
 378         system_converters = converters;
 379         system_movers = movers;
 380         system_lcolor = lcolor;
 381
 382         string prefsfile = "preferences";
 383         // back compatibility to lyxs < 1.1.6
 384         if (LibFileSearch(string(), prefsfile).empty())
 385                 prefsfile = "lyxrc";
 386         if (!LibFileSearch(string(), prefsfile).empty())
 387                 readRcFile(prefsfile);
 388
 389         readEncodingsFile("encodings");
 390         readLanguagesFile("languages");
 391
 392         // Load the layouts
 393         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 394         LyXSetStyle();
 395
 396         if (gui) {
 397                 // Set up bindings
 398                 toplevel_keymap.reset(new kb_keymap);
 399                 defaultKeyBindings(toplevel_keymap.get());
 400                 toplevel_keymap->read(lyxrc.bind_file);
 401
 402                 // Read menus
 403                 readUIFile(lyxrc.ui_file);
 404         }
 405
 406         if (lyxerr.debugging(Debug::LYXRC))
 407                 lyxrc.print();
 408
 409         setTmpDir(createLyXTmpDir(lyxrc.tempdir_path));
 410         if (getTmpDir().empty()) {
 411                 Alert::error(_("Could not create temporary directory"),
 412                              bformat(_("Could not create a temporary directory in\n"
 413                                        "%1$s. Make sure that this\n"
 414                                        "path exists and is writable and try again."),
 415                                      lyxrc.tempdir_path));
 416                 // createLyXTmpDir() tries sufficiently hard to create a
 417                 // usable temp dir, so the probability to come here is
 418                 // close to zero. We therefore don't try to overcome this
 419                 // problem with e.g. asking the user for a new path and
 420                 // trying again but simply exit.
 421                 exit(EXIT_FAILURE);
 422         }
 423
 424         if (lyxerr.debugging(Debug::INIT)) {
 425                 lyxerr << "LyX tmp dir: `" << getTmpDir() << '\'' << endl;
 426         }
 427
 428         lyxerr[Debug::INIT] << "Reading lastfiles `"
 429                             << lyxrc.lastfiles << "'..." << endl;
 430         lastfiles_.reset(new LastFiles(lyxrc.lastfiles,
 431                                        lyxrc.check_lastfiles,
 432                                        lyxrc.num_lastfiles));
 433 }
 434
 435
 436 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 437 {
 438         kbmap->bind("Right", FuncRequest(LFUN_RIGHT));
 439         kbmap->bind("Left", FuncRequest(LFUN_LEFT));
 440         kbmap->bind("Up", FuncRequest(LFUN_UP));
 441         kbmap->bind("Down", FuncRequest(LFUN_DOWN));
 442
 443         kbmap->bind("Tab", FuncRequest(LFUN_CELL_FORWARD));
 444         kbmap->bind("ISO_Left_Tab", FuncRequest(LFUN_CELL_FORWARD));
 445
 446         kbmap->bind("Home", FuncRequest(LFUN_HOME));
 447         kbmap->bind("End", FuncRequest(LFUN_END));
 448         kbmap->bind("Prior", FuncRequest(LFUN_PRIOR));
 449         kbmap->bind("Next", FuncRequest(LFUN_NEXT));
 450
 451         kbmap->bind("Return", FuncRequest(LFUN_BREAKPARAGRAPH));
 452         //kbmap->bind("~C-~S-~M-nobreakspace", FuncRequest(LFUN_PROTECTEDSPACE));
 453
 454         kbmap->bind("Delete", FuncRequest(LFUN_DELETE));
 455         kbmap->bind("BackSpace", FuncRequest(LFUN_BACKSPACE));
 456
 457         // kbmap->bindings to enable the use of the numeric keypad
 458         // e.g. Num Lock set
 459         //kbmap->bind("KP_0", FuncRequest(LFUN_SELFINSERT));
 460         //kbmap->bind("KP_Decimal", FuncRequest(LFUN_SELFINSERT));
 461         kbmap->bind("KP_Enter", FuncRequest(LFUN_BREAKPARAGRAPH));
 462         //kbmap->bind("KP_1", FuncRequest(LFUN_SELFINSERT));
 463         //kbmap->bind("KP_2", FuncRequest(LFUN_SELFINSERT));
 464         //kbmap->bind("KP_3", FuncRequest(LFUN_SELFINSERT));
 465         //kbmap->bind("KP_4", FuncRequest(LFUN_SELFINSERT));
 466         //kbmap->bind("KP_5", FuncRequest(LFUN_SELFINSERT));
 467         //kbmap->bind("KP_6", FuncRequest(LFUN_SELFINSERT));
 468         //kbmap->bind("KP_Add", FuncRequest(LFUN_SELFINSERT));
 469         //kbmap->bind("KP_7", FuncRequest(LFUN_SELFINSERT));
 470         //kbmap->bind("KP_8", FuncRequest(LFUN_SELFINSERT));
 471         //kbmap->bind("KP_9", FuncRequest(LFUN_SELFINSERT));
 472         //kbmap->bind("KP_Divide", FuncRequest(LFUN_SELFINSERT));
 473         //kbmap->bind("KP_Multiply", FuncRequest(LFUN_SELFINSERT));
 474         //kbmap->bind("KP_Subtract", FuncRequest(LFUN_SELFINSERT));
 475         kbmap->bind("KP_Right", FuncRequest(LFUN_RIGHT));
 476         kbmap->bind("KP_Left", FuncRequest(LFUN_LEFT));
 477         kbmap->bind("KP_Up", FuncRequest(LFUN_UP));
 478         kbmap->bind("KP_Down", FuncRequest(LFUN_DOWN));
 479         kbmap->bind("KP_Home", FuncRequest(LFUN_HOME));
 480         kbmap->bind("KP_End", FuncRequest(LFUN_END));
 481         kbmap->bind("KP_Prior", FuncRequest(LFUN_PRIOR));
 482         kbmap->bind("KP_Next", FuncRequest(LFUN_NEXT));
 483
 484         kbmap->bind("C-Tab", FuncRequest(LFUN_CELL_SPLIT));
 485         kbmap->bind("S-Tab", FuncRequest(LFUN_CELL_BACKWARD));
 486         kbmap->bind("S-ISO_Left_Tab", FuncRequest(LFUN_CELL_BACKWARD));
 487 }
 488
 489
 490 void LyX::emergencyCleanup() const
 491 {
 492         // what to do about tmpfiles is non-obvious. we would
 493         // like to delete any we find, but our lyxdir might
 494         // contain documents etc. which might be helpful on
 495         // a crash
 496
 497         bufferlist.emergencyWriteAll();
 498         if (lyxserver)
 499                 lyxserver->emergencyCleanup();
 500 }
 501
 502
 503 void LyX::deadKeyBindings(kb_keymap * kbmap)
 504 {
 505         // bindKeyings for transparent handling of deadkeys
 506         // The keysyms are gotten from XFree86 X11R6
 507         kbmap->bind("~C-~S-~M-dead_acute", FuncRequest(LFUN_ACUTE));
 508         kbmap->bind("~C-~S-~M-dead_breve", FuncRequest(LFUN_BREVE));
 509         kbmap->bind("~C-~S-~M-dead_caron", FuncRequest(LFUN_CARON));
 510         kbmap->bind("~C-~S-~M-dead_cedilla", FuncRequest(LFUN_CEDILLA));
 511         kbmap->bind("~C-~S-~M-dead_abovering", FuncRequest(LFUN_CIRCLE));
 512         kbmap->bind("~C-~S-~M-dead_circumflex", FuncRequest(LFUN_CIRCUMFLEX));
 513         kbmap->bind("~C-~S-~M-dead_abovedot", FuncRequest(LFUN_DOT));
 514         kbmap->bind("~C-~S-~M-dead_grave", FuncRequest(LFUN_GRAVE));
 515         kbmap->bind("~C-~S-~M-dead_doubleacute", FuncRequest(LFUN_HUNG_UMLAUT));
 516         kbmap->bind("~C-~S-~M-dead_macron", FuncRequest(LFUN_MACRON));
 517         // nothing with this name
 518         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 519         kbmap->bind("~C-~S-~M-dead_tilde", FuncRequest(LFUN_TILDE));
 520         kbmap->bind("~C-~S-~M-dead_diaeresis", FuncRequest(LFUN_UMLAUT));
 521         // nothing with this name either...
 522         //kbmap->bind("~C-~S-~M-dead_underbar", FuncRequest(LFUN_UNDERBAR));
 523         kbmap->bind("~C-~S-~M-dead_belowdot", FuncRequest(LFUN_UNDERDOT));
 524         kbmap->bind("~C-~S-~M-dead_tie", FuncRequest(LFUN_TIE));
 525         kbmap->bind("~C-~S-~M-dead_ogonek",FuncRequest(LFUN_OGONEK));
 526 }
 527
 528
 529 void LyX::queryUserLyXDir(bool explicit_userdir)
 530 {
 531         string const configure_script = AddName(system_lyxdir(), "configure");
 532         string const configure_command = "sh " + QuoteName(configure_script);
 533
 534         // Does user directory exist?
 535         FileInfo fileInfo(user_lyxdir());
 536         if (fileInfo.isOK() && fileInfo.isDir()) {
 537                 first_start = false;
 538                 FileInfo script(configure_script);
 539                 FileInfo defaults(AddName(user_lyxdir(), "lyxrc.defaults"));
 540                 if (defaults.isOK() && script.isOK()
 541                     && defaults.getModificationTime() < script.getModificationTime()) {
 542                         lyxerr << _("LyX: reconfiguring user directory")
 543                                << endl;
 544                         Path p(user_lyxdir());
 545                         ::system(configure_command.c_str());
 546                         lyxerr << "LyX: " << _("Done!") << endl;
 547                 }
 548                 return;
 549         }
 550
 551         first_start = !explicit_userdir;
 552
 553         lyxerr << bformat(_("LyX: Creating directory %1$s"
 554                                   " and running configure..."), user_lyxdir()) << endl;
 555
 556         if (!createDirectory(user_lyxdir(), 0755)) {
 557                 // Failed, let's use $HOME instead.
 558                 user_lyxdir(os::homepath());
 559                 lyxerr << bformat(_("Failed. Will use %1$s instead."),
 560                         user_lyxdir()) << endl;
 561                 return;
 562         }
 563
 564         // Run configure in user lyx directory
 565         Path p(user_lyxdir());
 566         ::system(configure_command.c_str());
 567         lyxerr << "LyX: " << _("Done!") << endl;
 568 }
 569
 570
 571 void LyX::readRcFile(string const & name)
 572 {
 573         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 574
 575         string const lyxrc_path = LibFileSearch(string(), name);
 576         if (!lyxrc_path.empty()) {
 577
 578                 lyxerr[Debug::INIT] << "Found " << name
 579                                     << " in " << lyxrc_path << endl;
 580
 581                 if (lyxrc.read(lyxrc_path) >= 0)
 582                         return;
 583         }
 584
 585         showFileError(name);
 586 }
 587
 588
 589 // Read the ui file `name'
 590 void LyX::readUIFile(string const & name)
 591 {
 592         enum Uitags {
 593                 ui_menuset = 1,
 594                 ui_toolbar,
 595                 ui_toolbars,
 596                 ui_include,
 597                 ui_last
 598         };
 599
 600         struct keyword_item uitags[ui_last - 1] = {
 601                 { "include", ui_include },
 602                 { "menuset", ui_menuset },
 603                 { "toolbar", ui_toolbar },
 604                 { "toolbars", ui_toolbars }
 605         };
 606
 607         // Ensure that a file is read only once (prevents include loops)
 608         static std::list<string> uifiles;
 609         std::list<string>::const_iterator it  = uifiles.begin();
 610         std::list<string>::const_iterator end = uifiles.end();
 611         it = std::find(it, end, name);
 612         if (it != end) {
 613                 lyxerr[Debug::INIT] << "UI file '" << name
 614                                     << "' has been read already. "
 615                                     << "Is this an include loop?"
 616                                     << endl;
 617                 return;
 618         }
 619
 620         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 621
 622         string const ui_path = LibFileSearch("ui", name, "ui");
 623
 624         if (ui_path.empty()) {
 625                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 626                 showFileError(name);
 627                 return;
 628         }
 629         uifiles.push_back(name);
 630
 631         lyxerr[Debug::INIT] << "Found " << name
 632                             << " in " << ui_path << endl;
 633         LyXLex lex(uitags, ui_last - 1);
 634         lex.setFile(ui_path);
 635         if (!lex.isOK()) {
 636                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 637                        << endl;
 638         }
 639
 640         if (lyxerr.debugging(Debug::PARSER))
 641                 lex.printTable(lyxerr);
 642
 643         while (lex.isOK()) {
 644                 switch (lex.lex()) {
 645                 case ui_include: {
 646                         lex.next(true);
 647                         string const file = lex.getString();
 648                         readUIFile(file);
 649                         break;
 650                 }
 651                 case ui_menuset:
 652                         menubackend.read(lex);
 653                         break;
 654
 655                 case ui_toolbar:
 656                         toolbarbackend.read(lex);
 657                         break;
 658
 659                 case ui_toolbars:
 660                         toolbarbackend.readToolbars(lex);
 661                         break;
 662
 663                 default:
 664                         if (!rtrim(lex.getString()).empty())
 665                                 lex.printError("LyX::ReadUIFile: "
 666                                                "Unknown menu tag: `$$Token'");
 667                         break;
 668                 }
 669         }
 670 }
 671
 672
 673 // Read the languages file `name'
 674 void LyX::readLanguagesFile(string const & name)
 675 {
 676         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 677
 678         string const lang_path = LibFileSearch(string(), name);
 679         if (lang_path.empty()) {
 680                 showFileError(name);
 681                 return;
 682         }
 683         languages.read(lang_path);
 684 }
 685
 686
 687 // Read the encodings file `name'
 688 void LyX::readEncodingsFile(string const & name)
 689 {
 690         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 691
 692         string const enc_path = LibFileSearch(string(), name);
 693         if (enc_path.empty()) {
 694                 showFileError(name);
 695                 return;
 696         }
 697         encodings.read(enc_path);
 698 }
 699
 700
 701 namespace {
 702
 703 bool is_gui = true;
 704 string batch;
 705
 706 /// return the the number of arguments consumed
 707 typedef boost::function<int(string const &, string const &)> cmd_helper;
 708
 709 int parse_dbg(string const & arg, string const &)
 710 {
 711         if (arg.empty()) {
 712                 lyxerr << _("List of supported debug flags:") << endl;
 713                 Debug::showTags(lyxerr);
 714                 exit(0);
 715         }
 716         lyxerr << bformat(_("Setting debug level to %1$s"), arg) << endl;
 717
 718         lyxerr.level(Debug::value(arg));
 719         Debug::showLevel(lyxerr, lyxerr.level());
 720         return 1;
 721 }
 722
 723
 724 int parse_help(string const &, string const &)
 725 {
 726         lyxerr <<
 727                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 728                   "Command line switches (case sensitive):\n"
 729                   "\t-help              summarize LyX usage\n"
 730                   "\t-userdir dir       try to set user directory to dir\n"
 731                   "\t-sysdir dir        try to set system directory to dir\n"
 732                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 733                   "\t-dbg feature[,feature]...\n"
 734                   "                  select the features to debug.\n"
 735                   "                  Type `lyx -dbg' to see the list of features\n"
 736                   "\t-x [--execute] command\n"
 737                   "                  where command is a lyx command.\n"
 738                   "\t-e [--export] fmt\n"
 739                   "                  where fmt is the export format of choice.\n"
 740                   "\t-i [--import] fmt file.xxx\n"
 741                   "                  where fmt is the import format of choice\n"
 742                   "                  and file.xxx is the file to be imported.\n"
 743                   "\t-version        summarize version and build info\n"
 744                   "Check the LyX man page for more details.") << endl;
 745         exit(0);
 746         return 0;
 747 }
 748
 749 int parse_version(string const &, string const &)
 750 {
 751         lyxerr << "LyX " << lyx_version
 752                << " of " << lyx_release_date << endl;
 753         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 754
 755         lyxerr << lyx_version_info << endl;
 756         exit(0);
 757         return 0;
 758 }
 759
 760 int parse_sysdir(string const & arg, string const &)
 761 {
 762         if (arg.empty()) {
 763                 lyxerr << _("Missing directory for -sysdir switch") << endl;
 764                 exit(1);
 765         }
 766         system_lyxdir(arg);
 767         return 1;
 768 }
 769
 770 int parse_userdir(string const & arg, string const &)
 771 {
 772         if (arg.empty()) {
 773                 lyxerr << _("Missing directory for -userdir switch") << endl;
 774                 exit(1);
 775         }
 776         user_lyxdir(arg);
 777         return 1;
 778 }
 779
 780 int parse_execute(string const & arg, string const &)
 781 {
 782         if (arg.empty()) {
 783                 lyxerr << _("Missing command string after --execute switch") << endl;
 784                 exit(1);
 785         }
 786         batch = arg;
 787         // Argh. Setting gui to false segfaults..
 788         // FIXME: when ? how ?
 789         // is_gui = false;
 790         return 1;
 791 }
 792
 793 int parse_export(string const & type, string const &)
 794 {
 795         if (type.empty()) {
 796                 lyxerr << _("Missing file type [eg latex, ps...] after "
 797                         "--export switch") << endl;
 798                 exit(1);
 799         }
 800         batch = "buffer-export " + type;
 801         is_gui = false;
 802         return 1;
 803 }
 804
 805 int parse_import(string const & type, string const & file)
 806 {
 807         if (type.empty()) {
 808                 lyxerr << _("Missing file type [eg latex, ps...] after "
 809                         "--import switch") << endl;
 810                 exit(1);
 811         }
 812         if (file.empty()) {
 813                 lyxerr << _("Missing filename for --import") << endl;
 814                 exit(1);
 815         }
 816
 817         batch = "buffer-import " + type + ' ' + file;
 818         return 2;
 819 }
 820
 821 } // namespace anon
 822
 823
 824 bool LyX::easyParse(int & argc, char * argv[])
 825 {
 826         std::map<string, cmd_helper> cmdmap;
 827
 828         cmdmap["-dbg"] = parse_dbg;
 829         cmdmap["-help"] = parse_help;
 830         cmdmap["--help"] = parse_help;
 831         cmdmap["-version"] = parse_version;
 832         cmdmap["--version"] = parse_version;
 833         cmdmap["-sysdir"] = parse_sysdir;
 834         cmdmap["-userdir"] = parse_userdir;
 835         cmdmap["-x"] = parse_execute;
 836         cmdmap["--execute"] = parse_execute;
 837         cmdmap["-e"] = parse_export;
 838         cmdmap["--export"] = parse_export;
 839         cmdmap["-i"] = parse_import;
 840         cmdmap["--import"] = parse_import;
 841
 842         for (int i = 1; i < argc; ++i) {
 843                 std::map<string, cmd_helper>::const_iterator it
 844                         = cmdmap.find(argv[i]);
 845
 846                 // don't complain if not found - may be parsed later
 847                 if (it == cmdmap.end())
 848                         continue;
 849
 850                 string arg((i + 1 < argc) ? argv[i + 1] : "");
 851                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
 852
 853                 int const remove = 1 + it->second(arg, arg2);
 854
 855                 // Now, remove used arguments by shifting
 856                 // the following ones remove places down.
 857                 argc -= remove;
 858                 for (int j = i; j < argc; ++j)
 859                         argv[j] = argv[j + remove];
 860                 --i;
 861         }
 862
 863         batch_command = batch;
 864
 865         return is_gui;
 866 }