src/lyx_main.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12 #include <version.h>
  13
  14 #ifdef __GNUG__
  15 #pragma implementation
  16 #endif
  17
  18 #include "lyx_main.h"
  19 #include "lyx_gui.h"
  20 #include "frontends/LyXView.h"
  21 #include "lyxfunc.h"
  22 #include "lyxrc.h"
  23 #include "buffer.h"
  24 #include "bufferlist.h"
  25 #include "debug.h"
  26 #include "lastfiles.h"
  27 #include "intl.h"
  28 #include "lyxserver.h"
  29 //#include "layout.h"
  30 #include "lyxtextclasslist.h"
  31 #include "gettext.h"
  32 #include "kbmap.h"
  33 #include "MenuBackend.h"
  34 #include "ToolbarDefaults.h"
  35 #include "lyxlex.h"
  36 #include "encoding.h"
  37 #include "converter.h"
  38 #include "language.h"
  39
  40 #include "frontends/Alert.h"
  41 #include "frontends/GUIRunTime.h"
  42
  43 #include "support/path.h"
  44 #include "support/filetools.h"
  45 #include "support/FileInfo.h"
  46 #include "support/os.h"
  47
  48 #include <cstdlib>
  49 #include <csignal>
  50
  51 using std::endl;
  52
  53 #ifndef CXX_GLOBAL_CSTD
  54 using std::signal;
  55 #endif
  56
  57 extern void LoadLyXFile(string const &);
  58 extern void QuitLyX();
  59
  60 string system_lyxdir;
  61 string build_lyxdir;
  62 string system_tempdir;
  63 string user_lyxdir;     // Default $HOME/.lyx
  64
  65 // Should this be kept global? Asger says Yes.
  66 DebugStream lyxerr;
  67
  68 boost::scoped_ptr<LastFiles> lastfiles;
  69
  70 // This is the global bufferlist object
  71 BufferList bufferlist;
  72
  73 LyXServer * lyxserver = 0;
  74 // this should be static, but I need it in buffer.C
  75 bool finished = false;  // flag, that we are quitting the program
  76
  77 // convenient to have it here.
  78 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  79
  80
  81 LyX::LyX(int * argc, char * argv[])
  82 {
  83         // Here we need to parse the command line. At least
  84         // we need to parse for "-dbg" and "-help"
  85         bool gui = easyParse(argc, argv);
  86
  87         // Global bindings (this must be done as early as possible.) (Lgb)
  88         toplevel_keymap.reset(new kb_keymap);
  89         defaultKeyBindings(toplevel_keymap.get());
  90
  91         // Make the GUI object, and let it take care of the
  92         // command line arguments that concerns it.
  93         lyxerr[Debug::INIT] << "Initializing LyXGUI..." << endl;
  94         lyxGUI.reset(new LyXGUI(this, argc, argv, gui));
  95         lyxerr[Debug::INIT] << "Initializing LyXGUI...done" << endl;
  96
  97         // Now the GUI and LyX have taken care of their arguments, so
  98         // the only thing left on the command line should be
  99         // filenames. Let's check anyway.
 100         for (int argi = 1; argi < *argc ; ++argi) {
 101                 if (argv[argi][0] == '-') {
 102                         lyxerr << _("Wrong command line option `")
 103                                << argv[argi]
 104                                << _("'. Exiting.") << endl;
 105                         exit(1);
 106                 }
 107         }
 108
 109         // Initialization of LyX (reads lyxrc and more)
 110         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 111         init(gui);
 112         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 113
 114         lyxGUI->init();
 115
 116         // Load the files specified in the command line.
 117         if ((*argc) == 2)
 118                 lyxerr[Debug::INFO] << "Opening document..." << endl;
 119         else if ((*argc) > 2)
 120                 lyxerr[Debug::INFO] << "Opening documents..." << endl;
 121
 122         Buffer * last_loaded = 0;
 123
 124         for (int argi = (*argc) - 1; argi >= 1; --argi) {
 125                 Buffer * loadb = bufferlist.loadLyXFile(argv[argi]);
 126                 if (loadb != 0) {
 127                         last_loaded = loadb;
 128                 }
 129         }
 130
 131         if (first_start) {
 132                 string const splash =
 133                         i18nLibFileSearch("examples", "splash.lyx");
 134                 lyxerr[Debug::INIT] << "Opening splash document "
 135                                << splash << "..." << endl;
 136                 Buffer * loadb = bufferlist.loadLyXFile(splash);
 137                 if (loadb != 0) {
 138                         last_loaded = loadb;
 139                 }
 140         }
 141
 142         if (last_loaded != 0) {
 143                 lyxerr[Debug::INIT] << "Yes we loaded some files." << endl;
 144                 if (lyxrc.use_gui)
 145                         lyxGUI->regBuf(last_loaded);
 146         }
 147
 148         // Execute batch commands if available
 149         if (!batch_command.empty()) {
 150                 lyxerr << "About to handle -x '"
 151                        << batch_command << "'" << endl;
 152
 153                 // no buffer loaded, create one
 154                 if (!last_loaded)
 155                         last_loaded = bufferlist.newFile("tmpfile", string());
 156
 157                 bool success = false;
 158
 159                 // try to dispatch to last loaded buffer first
 160                 bool dispatched = last_loaded->dispatch(batch_command, &success);
 161
 162                 // if this was successful, return.
 163                 // Maybe we could do something more clever than aborting...
 164                 if (dispatched) {
 165                         QuitLyX();
 166                         exit(!success);
 167                 }
 168
 169                 // otherwise, let the GUI handle the batch command
 170                 lyxGUI->regBuf(last_loaded);
 171                 lyxGUI->getLyXView()->getLyXFunc()->verboseDispatch(batch_command, false);
 172
 173                 // fall through...
 174         }
 175
 176         // Let the ball begin...
 177         lyxGUI->runTime();
 178 }
 179
 180
 181 // A destructor is always necessary  (asierra-970604)
 182 LyX::~LyX()
 183 {
 184 }
 185
 186
 187 extern "C" {
 188
 189 static
 190 void error_handler(int err_sig)
 191 {
 192         switch (err_sig) {
 193         case SIGHUP:
 194                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 195                 break;
 196         case SIGINT:
 197                 // no comments
 198                 break;
 199         case SIGFPE:
 200                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 201                 break;
 202         case SIGSEGV:
 203                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 204                 lyxerr <<
 205                         "Sorry, you have found a bug in LyX. "
 206                         "Please read the bug-reporting instructions "
 207                         "in Help->Introduction and send us a bug report, "
 208                         "if necessary. Thanks !" << endl;
 209                 break;
 210         case SIGTERM:
 211                 // no comments
 212                 break;
 213         }
 214
 215         // Deinstall the signal handlers
 216         signal(SIGHUP, SIG_DFL);
 217         signal(SIGINT, SIG_DFL);
 218         signal(SIGFPE, SIG_DFL);
 219         signal(SIGSEGV, SIG_DFL);
 220         signal(SIGTERM, SIG_DFL);
 221
 222         LyX::emergencyCleanup();
 223
 224         lyxerr << "Bye." << endl;
 225         if (err_sig!= SIGHUP &&
 226            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 227                 lyx::abort();
 228         exit(0);
 229 }
 230
 231 }
 232
 233
 234 void LyX::init(bool gui)
 235 {
 236         // Install the signal handlers
 237         signal(SIGHUP, error_handler);
 238         signal(SIGFPE, error_handler);
 239         signal(SIGSEGV, error_handler);
 240         signal(SIGINT, error_handler);
 241         signal(SIGTERM, error_handler);
 242
 243         //
 244         // Determine path of binary
 245         //
 246
 247         string binpath = os::binpath();
 248         string binname = os::binname();
 249         string fullbinname = MakeAbsPath(binname, binpath);
 250
 251         if (binpath.empty()) {
 252                 lyxerr << _("Warning: could not determine path of binary.")
 253                        << "\n"
 254                        << _("If you have problems, try starting LyX with an absolute path.")
 255                        << endl;
 256         }
 257         lyxerr[Debug::INIT] << "Name of binary: " << binname << endl;
 258         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 259
 260         //
 261         // Determine system directory.
 262         //
 263
 264         // Directories are searched in this order:
 265         // 1) -sysdir command line parameter
 266         // 2) LYX_DIR_13x environment variable
 267         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 268         // 4) <path of binary>/../share/<name of binary>/
 269         // 4a) repeat 4 after following the Symlink if <path of
 270         //     binary> is a symbolic link.
 271         // 5) hardcoded lyx_dir
 272         // The directory is checked for the presence of the file
 273         // "chkconfig.ltx", and if that is present, the directory
 274         // is accepted as the system directory.
 275         // If no chkconfig.ltx file is found, a warning is given,
 276         // and the hardcoded lyx_dir is used.
 277
 278         // If we had a command line switch, system_lyxdir is already set
 279         string searchpath;
 280         if (!system_lyxdir.empty())
 281                 searchpath= MakeAbsPath(system_lyxdir) + ';';
 282
 283         // LYX_DIR_13x environment variable
 284         string const lyxdir = GetEnvPath("LYX_DIR_13x");
 285
 286         if (!lyxdir.empty()) {
 287                 lyxerr[Debug::INIT] << "LYX_DIR_13x: " << lyxdir << endl;
 288                 searchpath += lyxdir + ';';
 289         }
 290
 291         string fullbinpath = binpath;
 292         FileInfo file(fullbinname, true);
 293         if (file.isLink()) {
 294                 lyxerr[Debug::INIT] << "binary is a link" << endl;
 295                 string link;
 296                 if (LyXReadLink(fullbinname, link)) {
 297                         // Path of binary/../share/name of binary/
 298                         searchpath += NormalizePath(AddPath(binpath,
 299                                                             "../share/")
 300                                                     + OnlyFilename(binname));
 301                         searchpath += ';';
 302                         fullbinpath = link;
 303                         binpath = MakeAbsPath(OnlyPath(fullbinpath));
 304                 }
 305         }
 306
 307         bool followlink;
 308         do {
 309                 // Path of binary/../share/name of binary/
 310                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 311                       OnlyFilename(binname)) + ';';
 312
 313                 // Follow Symlinks
 314                 FileInfo file(fullbinpath, true);
 315                 followlink = file.isLink();
 316                 if (followlink) {
 317                         lyxerr << " directory " << fullbinpath
 318                                << " is a link" << endl;
 319                         string link;
 320                         if (LyXReadLink(fullbinpath, link)) {
 321                                 fullbinpath = link;
 322                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 323                         }
 324                         else {
 325                                 followlink = false;
 326                         }
 327                 }
 328         } while (followlink);
 329
 330         // <path of binary>/TOP_SRCDIR/lib
 331         build_lyxdir = MakeAbsPath("../lib", binpath);
 332         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 333                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 334                                           binpath) + ';';
 335                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 336                         "place... yes" << endl;
 337         } else {
 338                 lyxerr[Debug::INIT]
 339                         << "Checking whether LyX is run in place... no"
 340                         << endl;
 341                 build_lyxdir.erase();
 342         }
 343
 344         // Hardcoded dir
 345         searchpath += LYX_DIR;
 346
 347         // If debugging, show complete search path
 348         lyxerr[Debug::INIT] << "System directory search path: "
 349                             << searchpath << endl;
 350
 351         string const filename = "chkconfig.ltx";
 352         string const temp = FileOpenSearch(searchpath, filename, string());
 353         system_lyxdir = OnlyPath(temp);
 354
 355         // Reduce "path/../path" stuff out of system directory
 356         system_lyxdir = NormalizePath(system_lyxdir);
 357
 358         bool path_shown = false;
 359
 360         // Warn if environment variable is set, but unusable
 361         if (!lyxdir.empty()) {
 362                 if (system_lyxdir != NormalizePath(lyxdir)) {
 363                         lyxerr <<_("LYX_DIR_13x environment variable no good.")
 364                                << '\n'
 365                                << _("System directory set to: ")
 366                                << system_lyxdir << endl;
 367                         path_shown = true;
 368                 }
 369         }
 370
 371         // Warn the user if we couldn't find "chkconfig.ltx"
 372         if (system_lyxdir == "./") {
 373                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 374                        <<_("Try the '-sysdir' command line parameter or ")
 375                        <<_("set the environment variable LYX_DIR_13x to the "
 376                            "LyX system directory ")
 377                        << _("containing the file `chkconfig.ltx'.") << endl;
 378                 if (!path_shown) {
 379                         FileInfo fi(LYX_DIR);
 380                         if (!fi.exist()) {
 381                                 lyxerr << "Couldn't even find the default LYX_DIR." << endl
 382                                         << "Giving up." << endl;
 383                                 exit(1);
 384                         }
 385                         lyxerr << _("Using built-in default ")
 386                                << LYX_DIR << _(" but expect problems.")
 387                                << endl;
 388                 } else {
 389                         lyxerr << _("Expect problems.") << endl;
 390                 }
 391                 system_lyxdir = LYX_DIR;
 392                 path_shown = true;
 393         }
 394         // Report the system directory if debugging is on
 395         if (!path_shown)
 396                 lyxerr[Debug::INIT] << "System directory: '"
 397                                     << system_lyxdir << '\'' << endl;
 398
 399         //
 400         // Determine user lyx-dir
 401         //
 402
 403         // Directories are searched in this order:
 404         // 1) -userdir command line parameter
 405         // 2) LYX_USERDIR_13x environment variable
 406         // 3) $HOME/.<name of binary>
 407
 408         // If we had a command line switch, user_lyxdir is already set
 409         bool explicit_userdir = true;
 410         if (user_lyxdir.empty()) {
 411
 412                 // LYX_USERDIR_13x environment variable
 413                 user_lyxdir = GetEnvPath("LYX_USERDIR_13x");
 414
 415                 // default behaviour
 416                 if (user_lyxdir.empty())
 417                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 418                                                         string(".") + PACKAGE);
 419                         explicit_userdir = false;
 420         }
 421
 422         lyxerr[Debug::INIT] << "User LyX directory: '"
 423                             <<  user_lyxdir << '\'' << endl;
 424
 425         // Check that user LyX directory is ok. We don't do that if
 426         // running in batch mode.
 427         if (gui) {
 428                 queryUserLyXDir(explicit_userdir);
 429         } else {
 430                 first_start = false;
 431         }
 432
 433         //
 434         // Shine up lyxrc defaults
 435         //
 436
 437         // Default template path: system_dir/templates
 438         if (lyxrc.template_path.empty()) {
 439                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 440         }
 441
 442         // Default lastfiles file: $HOME/.lyx/lastfiles
 443         if (lyxrc.lastfiles.empty()) {
 444                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 445         }
 446
 447         // Disable gui when either lyxrc or easyparse says so
 448         if (!gui)
 449                 lyxrc.use_gui = false;
 450
 451         // Calculate screen dpi as average of x-DPI and y-DPI:
 452         if (lyxrc.use_gui) {
 453                 lyxrc.dpi = GUIRunTime::getScreenDPI();
 454                 lyxerr[Debug::INIT] << "DPI setting detected to be "
 455                                                 << lyxrc.dpi + 0.5 << endl;
 456         } else {
 457                 lyxrc.dpi = 1; // I hope this is safe
 458         }
 459
 460         //
 461         // Read configuration files
 462         //
 463
 464         readRcFile("lyxrc.defaults");
 465         system_lyxrc = lyxrc;
 466         system_formats = formats;
 467         system_converters = converters;
 468         system_lcolor = lcolor;
 469
 470         // If there is a preferences file we read that instead
 471         // of the old lyxrc file.
 472         if (!readRcFile("preferences"))
 473             readRcFile("lyxrc");
 474
 475         // Read encodings
 476         readEncodingsFile("encodings");
 477         // Read languages
 478         readLanguagesFile("languages");
 479
 480         // Load the layouts
 481         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 482         LyXSetStyle();
 483
 484         // Ensure that we have really read a bind file, so that LyX is
 485         // usable.
 486         lyxrc.readBindFileIfNeeded();
 487
 488         // Read menus
 489         readUIFile(lyxrc.ui_file);
 490
 491         // Bind the X dead keys to the corresponding LyX functions if
 492         // necessary.
 493         if (lyxrc.override_x_deadkeys)
 494                 deadKeyBindings(toplevel_keymap.get());
 495
 496         if (lyxerr.debugging(Debug::LYXRC)) {
 497                 lyxrc.print();
 498         }
 499
 500         // Create temp directory
 501         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 502         system_tempdir = os::getTmpDir();
 503         if (lyxerr.debugging(Debug::INIT)) {
 504                 lyxerr << "LyX tmp dir: `" << system_tempdir << '\'' << endl;
 505         }
 506
 507         // load the lastfiles mini-database
 508         lyxerr[Debug::INIT] << "Reading lastfiles `"
 509                             << lyxrc.lastfiles << "'..." << endl;
 510         lastfiles.reset(new LastFiles(lyxrc.lastfiles,
 511                                       lyxrc.check_lastfiles,
 512                                       lyxrc.num_lastfiles));
 513
 514         // start up the lyxserver. (is this a bit early?) (Lgb)
 515         // 0.12 this will be way to early, we need the GUI to be initialized
 516         // first, so move it for now.
 517         // lyxserver = new LyXServer;
 518 }
 519
 520
 521 // These are the default bindings known to LyX
 522 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 523 {
 524         kbmap->bind("Right", LFUN_RIGHT);
 525         kbmap->bind("Left", LFUN_LEFT);
 526         kbmap->bind("Up", LFUN_UP);
 527         kbmap->bind("Down", LFUN_DOWN);
 528
 529         kbmap->bind("Tab", LFUN_TAB);
 530         kbmap->bind("ISO_Left_Tab", LFUN_TAB); // jbl 2001-23-02
 531
 532         kbmap->bind("Home", LFUN_HOME);
 533         kbmap->bind("End", LFUN_END);
 534         kbmap->bind("Prior", LFUN_PRIOR);
 535         kbmap->bind("Next", LFUN_NEXT);
 536
 537         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 538         //kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 539
 540         kbmap->bind("Delete", LFUN_DELETE);
 541         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 542
 543         // sub- and superscript -MV
 544         kbmap->bind("~S-underscore", LFUN_SUBSCRIPT);
 545         kbmap->bind("~S-asciicircum", LFUN_SUPERSCRIPT);
 546
 547         // kbmap->bindings to enable the use of the numeric keypad
 548         // e.g. Num Lock set
 549         //kbmap->bind("KP_0", LFUN_SELFINSERT);
 550         //kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 551         kbmap->bind("KP_Enter", LFUN_BREAKPARAGRAPH);
 552         //kbmap->bind("KP_1", LFUN_SELFINSERT);
 553         //kbmap->bind("KP_2", LFUN_SELFINSERT);
 554         //kbmap->bind("KP_3", LFUN_SELFINSERT);
 555         //kbmap->bind("KP_4", LFUN_SELFINSERT);
 556         //kbmap->bind("KP_5", LFUN_SELFINSERT);
 557         //kbmap->bind("KP_6", LFUN_SELFINSERT);
 558         //kbmap->bind("KP_Add", LFUN_SELFINSERT);
 559         //kbmap->bind("KP_7", LFUN_SELFINSERT);
 560         //kbmap->bind("KP_8", LFUN_SELFINSERT);
 561         //kbmap->bind("KP_9", LFUN_SELFINSERT);
 562         //kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 563         //kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 564         //kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 565         kbmap->bind("KP_Right", LFUN_RIGHT);
 566         kbmap->bind("KP_Left", LFUN_LEFT);
 567         kbmap->bind("KP_Up", LFUN_UP);
 568         kbmap->bind("KP_Down", LFUN_DOWN);
 569         kbmap->bind("KP_Home", LFUN_HOME);
 570         kbmap->bind("KP_End", LFUN_END);
 571         kbmap->bind("KP_Prior", LFUN_PRIOR);
 572         kbmap->bind("KP_Next", LFUN_NEXT);
 573
 574         kbmap->bind("C-Tab", LFUN_TABINSERT);  // ale970515
 575         kbmap->bind("S-Tab", LFUN_SHIFT_TAB);  // jug20000522
 576         kbmap->bind("S-ISO_Left_Tab", LFUN_SHIFT_TAB); // jbl 2001-23-02
 577 }
 578
 579
 580 void LyX::emergencyCleanup()
 581 {
 582         // what to do about tmpfiles is non-obvious. we would
 583         // like to delete any we find, but our lyxdir might
 584         // contain documents etc. which might be helpful on
 585         // a crash
 586
 587         bufferlist.emergencyWriteAll();
 588         if (lyxserver)
 589                 lyxserver->emergencyCleanup();
 590 }
 591
 592
 593 // LyX can optionally take over the handling of deadkeys
 594 void LyX::deadKeyBindings(kb_keymap * kbmap)
 595 {
 596         // bindKeyings for transparent handling of deadkeys
 597         // The keysyms are gotten from XFree86 X11R6
 598         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 599         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 600         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 601         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 602         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 603         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 604         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 605         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 606         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 607         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 608         // nothing with this name
 609         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 610         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 611         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 612         // nothing with this name either...
 613         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 614         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 615         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 616         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 617 }
 618
 619
 620 // This one is not allowed to use anything on the main form, since that
 621 // one does not exist yet. (Asger)
 622 void LyX::queryUserLyXDir(bool explicit_userdir)
 623 {
 624         // Does user directory exist?
 625         FileInfo fileInfo(user_lyxdir);
 626         if (fileInfo.isOK() && fileInfo.isDir()) {
 627                 first_start = false;
 628                 return;
 629         } else {
 630                 first_start = !explicit_userdir;
 631         }
 632
 633         // If the user specified explicitely a directory, ask whether
 634         // to create it (otherwise, always create it)
 635         if (explicit_userdir &&
 636             !Alert::askQuestion(_("You have specified an invalid LyX directory."),
 637                          _("It is needed to keep your own configuration."),
 638                          _("Should I try to set it up for you (recommended)?"))) {
 639                 lyxerr << _("Running without personal LyX directory.") << endl;
 640                 // No, let's use $HOME instead.
 641                 user_lyxdir = GetEnvPath("HOME");
 642                 return;
 643         }
 644
 645         // Tell the user what is going on
 646         lyxerr << _("LyX: Creating directory ") << user_lyxdir
 647                << _(" and running configure...") << endl;
 648
 649         // Create directory structure
 650         if (!createDirectory(user_lyxdir, 0755)) {
 651                 // Failed, let's use $HOME instead.
 652                 user_lyxdir = GetEnvPath("HOME");
 653                 lyxerr << _("Failed. Will use ") << user_lyxdir
 654                        << _(" instead.") << endl;
 655                 return;
 656         }
 657
 658         // Run configure in user lyx directory
 659         Path p(user_lyxdir);
 660         ::system(AddName(system_lyxdir, "configure").c_str());
 661         lyxerr << "LyX: " << _("Done!") << endl;
 662 }
 663
 664
 665 // Read the rc file `name'
 666 bool LyX::readRcFile(string const & name)
 667 {
 668         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 669
 670         string const lyxrc_path = LibFileSearch(string(), name);
 671         if (!lyxrc_path.empty()) {
 672                 lyxerr[Debug::INIT] << "Found " << name
 673                                     << " in " << lyxrc_path << endl;
 674                 if (lyxrc.read(lyxrc_path) < 0) {
 675                         Alert::alert(_("LyX Warning!"),
 676                                    _("Error while reading ") + lyxrc_path + ".",
 677                                    _("Using built-in defaults."));
 678                         return false;
 679                 }
 680                 return true;
 681         } else {
 682                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 683         }
 684
 685         return false;
 686 }
 687
 688
 689 // Read the ui file `name'
 690 void LyX::readUIFile(string const & name)
 691 {
 692         enum Uitags {
 693                 ui_menuset = 1,
 694                 ui_toolbar,
 695                 ui_last
 696         };
 697
 698         struct keyword_item uitags[ui_last-1] = {
 699                 { "menuset", ui_menuset },
 700                 { "toolbar", ui_toolbar }
 701         };
 702
 703         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 704
 705         string const ui_path = LibFileSearch("ui", name, "ui");
 706
 707         if (ui_path.empty()) {
 708                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 709                 menubackend.defaults();
 710                 return;
 711         }
 712
 713         lyxerr[Debug::INIT] << "Found " << name
 714                             << " in " << ui_path << endl;
 715         LyXLex lex(uitags, ui_last - 1);
 716         lex.setFile(ui_path);
 717         if (!lex.isOK()) {
 718                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 719                        << endl;
 720         }
 721
 722         if (lyxerr.debugging(Debug::PARSER))
 723                 lex.printTable(lyxerr);
 724
 725         while (lex.isOK()) {
 726                 switch (lex.lex()) {
 727                 case ui_menuset:
 728                         menubackend.read(lex);
 729                         break;
 730
 731                 case ui_toolbar:
 732                         toolbardefaults.read(lex);
 733                         break;
 734
 735                 default:
 736                         if (!strip(lex.getString()).empty())
 737                                 lex.printError("LyX::ReadUIFile: "
 738                                                "Unknown menu tag: `$$Token'");
 739                         break;
 740                 }
 741         }
 742 }
 743
 744
 745 // Read the languages file `name'
 746 void LyX::readLanguagesFile(string const & name)
 747 {
 748         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 749
 750         string const lang_path = LibFileSearch(string(), name);
 751         if (lang_path.empty()) {
 752                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 753                 languages.setDefaults();
 754                 return;
 755         }
 756         languages.read(lang_path);
 757 }
 758
 759
 760 // Read the encodings file `name'
 761 void LyX::readEncodingsFile(string const & name)
 762 {
 763         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 764
 765         string const enc_path = LibFileSearch(string(), name);
 766         if (enc_path.empty()) {
 767                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 768                 return;
 769         }
 770         encodings.read(enc_path);
 771 }
 772
 773
 774 namespace {
 775
 776 // Set debugging level and report result to user
 777 void setDebuggingLevel(string const & dbgLevel)
 778 {
 779         lyxerr << _("Setting debug level to ") <<  dbgLevel << endl;
 780         lyxerr.level(Debug::value(dbgLevel));
 781         Debug::showLevel(lyxerr, lyxerr.level());
 782 }
 783
 784
 785 // Give command line help
 786 void commandLineHelp()
 787 {
 788         lyxerr <<
 789                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 790                   "Command line switches (case sensitive):\n"
 791                   "\t-help              summarize LyX usage\n"
 792                   "\t-userdir dir       try to set user directory to dir\n"
 793                   "\t-sysdir dir        try to set system directory to dir\n"
 794                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 795                   "\t-dbg feature[,feature]...\n"
 796                   "                  select the features to debug.\n"
 797                   "                  Type `lyx -dbg' to see the list of features\n"
 798                   "\t-x [--execute] command\n"
 799                   "                  where command is a lyx command.\n"
 800                   "\t-e [--export] fmt\n"
 801                   "                  where fmt is the export format of choice.\n"
 802                   "\t-i [--import] fmt file.xxx\n"
 803                   "                  where fmt is the import format of choice\n"
 804                   "                  and file.xxx is the file to be imported.\n"
 805                   "\t-version        summarize version and build info\n"
 806                   "Check the LyX man page for more details.") << endl;
 807 }
 808
 809 // Give command line version information
 810 void commandLineVersionInfo()
 811 {
 812         lyxerr << "LyX " << lyx_version
 813                << " of " << lyx_release_date << endl;
 814         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 815
 816         lyxerr << lyx_version_info << endl;
 817 }
 818
 819
 820 } // namespace anon
 821
 822
 823 bool LyX::easyParse(int * argc, char * argv[])
 824 {
 825         bool gui = true;
 826         int removeargs = 0; // used when options are read
 827         for (int i = 1; i < *argc; ++i) {
 828                 string arg = argv[i];
 829
 830                 // Check for -dbg int
 831                 if (arg == "-dbg") {
 832                         if (i + 1 < *argc) {
 833                                 setDebuggingLevel(argv[i + 1]);
 834                                 removeargs = 2;
 835                         } else {
 836                                 lyxerr << _("List of supported debug flags:")
 837                                        << endl;
 838                                 Debug::showTags(lyxerr);
 839                                 exit(1);
 840                         }
 841                 }
 842                 // Check for "-sysdir"
 843                 else if (arg == "-sysdir") {
 844                         if (i + 1 < *argc) {
 845                                 system_lyxdir = argv[i + 1];
 846                                 removeargs = 2;
 847                         } else {
 848                                 lyxerr << _("Missing directory for -sysdir switch!")
 849                                        << endl;
 850                                 exit(1);
 851                         }
 852                 }
 853                 // Check for "-userdir"
 854                 else if (arg == "-userdir") {
 855                         if (i + 1 < *argc) {
 856                                 user_lyxdir = argv[i + 1];
 857                                 removeargs = 2;
 858                         } else {
 859                                 lyxerr << _("Missing directory for -userdir switch!")
 860                                        << endl;
 861                                 exit(1);
 862                         }
 863                 }
 864                 // Check for --help or -help
 865                 else if (arg == "--help" || arg == "-help") {
 866                         commandLineHelp();
 867                         exit(0);
 868                 }
 869                 // Check for --version or -version
 870                 else if (arg == "--version" || arg == "-version") {
 871                         commandLineVersionInfo();
 872                         exit(0);
 873                 }
 874                 // FIXME: why is this commented out ?
 875                 // Check for "-nw": No XWindows as for emacs this should
 876                 // give a LyX that could be used in a terminal window.
 877                 //else if (arg == "-nw") {
 878                 //      gui = false;
 879                 //}
 880
 881                 // Check for "-x": Execute commands
 882                 else if (arg == "-x" || arg == "--execute") {
 883                         if (i + 1 < *argc) {
 884                                 batch_command = string(argv[i + 1]);
 885                                 removeargs = 2;
 886                         }
 887                         else
 888                                 lyxerr << _("Missing command string after  -x switch!") << endl;
 889
 890                         // Argh. Setting gui to false segfaults..
 891                         // FIXME: when ? how ?
 892                         // gui = false;
 893                 }
 894
 895                 else if (arg == "-e" || arg == "--export") {
 896                         if (i + 1 < *argc) {
 897                                 string type(argv[i+1]);
 898                                 removeargs = 2;
 899                                 batch_command = "buffer-export " + type;
 900                                 gui = false;
 901                         } else {
 902                                 lyxerr << _("Missing file type [eg latex, "
 903                                             "ps...] after ")
 904                                        << arg << _(" switch!") << endl;
 905                                 exit(1);
 906                         }
 907                 }
 908                 else if (arg == "-i" || arg == "--import") {
 909                         if (i + 1 < *argc) {
 910                                 if (!argv[i+2]) {
 911                                         lyxerr << _("Missing filename for --import") << endl;
 912                                         exit(1);
 913                                 }
 914
 915                                 string const file(argv[i+2]);
 916                                 string const type(argv[i+1]);
 917                                 removeargs = 3;
 918
 919                                 batch_command = "buffer-import " + type + " " + file;
 920                                 lyxerr << "batch_command: "
 921                                        << batch_command << endl;
 922
 923                         } else {
 924                                 lyxerr << _("Missing type [eg latex, "
 925                                             "ps...] after ")
 926                                        << arg << _(" switch!") << endl;
 927                                 exit(1);
 928                         }
 929                 }
 930
 931                 if (removeargs > 0) {
 932                         // Now, remove used arguments by shifting
 933                         // the following ones removeargs places down.
 934                         (*argc) -= removeargs;
 935                         for (int j = i; j < (*argc); ++j)
 936                                 argv[j] = argv[j + removeargs];
 937                         --i; // After shift, check this number again.
 938                         removeargs = 0;
 939                 }
 940
 941         }
 942
 943         return gui;
 944 }