src/lyx_main.C

   1 /**
   2  * \file lyx_main.C
   3  * Copyright 1995-2002 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author unknown
   7  */
   8
   9 #include <config.h>
  10 #include <version.h>
  11
  12 #ifdef __GNUG__
  13 #pragma implementation
  14 #endif
  15
  16 #include "lyx_main.h"
  17
  18 #include "support/filetools.h"
  19 #include "support/lyxlib.h"
  20 #include "support/os.h"
  21 #include "support/FileInfo.h"
  22 #include "support/path.h"
  23 #include "debug.h"
  24 #include "gettext.h"
  25 #include "lyxlex.h"
  26
  27 #include "graphics/GraphicsTypes.h"
  28
  29 #include "bufferlist.h"
  30 #include "buffer.h"
  31 #include "lyxserver.h"
  32 #include "kbmap.h"
  33 #include "lyxfunc.h"
  34 #include "ToolbarDefaults.h"
  35 #include "MenuBackend.h"
  36 #include "language.h"
  37 #include "lastfiles.h"
  38 #include "encoding.h"
  39 #include "converter.h"
  40 #include "lyxtextclasslist.h"
  41
  42 #include "frontends/Alert.h"
  43 #include "frontends/lyx_gui.h"
  44
  45 #include "BoostFormat.h"
  46 #include <boost/function.hpp>
  47
  48 #include <cstdlib>
  49 #include <csignal>
  50
  51 using std::vector;
  52 using std::endl;
  53
  54 #ifndef CXX_GLOBAL_CSTD
  55 using std::exit;
  56 using std::signal;
  57 using std::system;
  58 #endif
  59
  60 extern void LoadLyXFile(string const &);
  61 extern void QuitLyX();
  62
  63 extern LyXServer * lyxserver;
  64
  65 string system_lyxdir;
  66 string build_lyxdir;
  67 string system_tempdir;
  68 string user_lyxdir;
  69
  70 DebugStream lyxerr;
  71
  72 boost::scoped_ptr<LastFiles> lastfiles;
  73
  74 // This is the global bufferlist object
  75 BufferList bufferlist;
  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 const want_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         // set the DisplayTranslator only once; should that be done here??
  92         // if this should not be in this file, please also remove
  93         // #include "graphics/GraphicsTypes.h" at the top -- Rob Lahaye.
  94         grfx::setDisplayTranslator();
  95
  96         if (want_gui) {
  97                 lyx_gui::parse_init(argc, argv);
  98         }
  99
 100         // check for any spurious extra arguments
 101         // other than documents
 102         for (int argi = 1; argi < argc ; ++argi) {
 103                 if (argv[argi][0] == '-') {
 104                         lyxerr << boost::format(_("Wrong command line option `%1$s'. Exiting.")) % argv[argi] << 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(want_gui);
 112         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 113
 114         if (want_gui) {
 115                 lyx_gui::parse_lyxrc();
 116         }
 117
 118         vector<string> files;
 119
 120         for (int argi = argc - 1; argi >= 1; --argi) {
 121                 files.push_back(argv[argi]);
 122         }
 123
 124         if (first_start) {
 125                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 126         }
 127
 128         // Execute batch commands if available
 129         if (!batch_command.empty()) {
 130                 lyxerr[Debug::INIT] << "About to handle -x '"
 131                        << batch_command << "'" << endl;
 132
 133                 Buffer * last_loaded = 0;
 134
 135                 vector<string>::iterator it = files.begin();
 136                 vector<string>::iterator end = files.end();
 137                 for (; it != end; ++it) {
 138                         last_loaded = bufferlist.loadLyXFile(*it);
 139                 }
 140
 141                 files.clear();
 142
 143                 // no buffer loaded, create one
 144                 if (!last_loaded)
 145                         last_loaded = bufferlist.newFile("tmpfile", string());
 146
 147                 bool success = false;
 148
 149                 // try to dispatch to last loaded buffer first
 150                 bool const dispatched = last_loaded->dispatch(batch_command, &success);
 151
 152                 if (dispatched) {
 153                         QuitLyX();
 154                         exit(!success);
 155                 }
 156         }
 157
 158         lyx_gui::start(batch_command, files);
 159 }
 160
 161
 162 extern "C" {
 163
 164 static void error_handler(int err_sig)
 165 {
 166         switch (err_sig) {
 167         case SIGHUP:
 168                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 169                 break;
 170         case SIGINT:
 171                 // no comments
 172                 break;
 173         case SIGFPE:
 174                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 175                 break;
 176         case SIGSEGV:
 177                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 178                 lyxerr <<
 179                         "Sorry, you have found a bug in LyX. "
 180                         "Please read the bug-reporting instructions "
 181                         "in Help->Introduction and send us a bug report, "
 182                         "if necessary. Thanks !" << endl;
 183                 break;
 184         case SIGTERM:
 185                 // no comments
 186                 break;
 187         }
 188
 189         // Deinstall the signal handlers
 190         signal(SIGHUP, SIG_DFL);
 191         signal(SIGINT, SIG_DFL);
 192         signal(SIGFPE, SIG_DFL);
 193         signal(SIGSEGV, SIG_DFL);
 194         signal(SIGTERM, SIG_DFL);
 195
 196         LyX::emergencyCleanup();
 197
 198         lyxerr << "Bye." << endl;
 199         if (err_sig!= SIGHUP &&
 200            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 201                 lyx::abort();
 202         exit(0);
 203 }
 204
 205 }
 206
 207
 208 void LyX::init(bool gui)
 209 {
 210         signal(SIGHUP, error_handler);
 211         signal(SIGFPE, error_handler);
 212         signal(SIGSEGV, error_handler);
 213         signal(SIGINT, error_handler);
 214         signal(SIGTERM, error_handler);
 215
 216         //
 217         // Determine path of binary
 218         //
 219
 220         string binpath = os::binpath();
 221         string binname = os::binname();
 222         string fullbinname = MakeAbsPath(binname, binpath);
 223
 224         if (binpath.empty()) {
 225                 lyxerr << _("Warning: could not determine path of binary.")
 226                        << "\n"
 227                        << _("If you have problems, try starting LyX with an absolute path.")
 228                        << endl;
 229         }
 230         lyxerr[Debug::INIT] << "Name of binary: " << binname << endl;
 231         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 232
 233         //
 234         // Determine system directory.
 235         //
 236
 237         // Directories are searched in this order:
 238         // 1) -sysdir command line parameter
 239         // 2) LYX_DIR_13x environment variable
 240         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 241         // 4) <path of binary>/../share/<name of binary>/
 242         // 4a) repeat 4 after following the Symlink if <path of
 243         //     binary> is a symbolic link.
 244         // 5) hardcoded lyx_dir
 245         // The directory is checked for the presence of the file
 246         // "chkconfig.ltx", and if that is present, the directory
 247         // is accepted as the system directory.
 248         // If no chkconfig.ltx file is found, a warning is given,
 249         // and the hardcoded lyx_dir is used.
 250
 251         // If we had a command line switch, system_lyxdir is already set
 252         string searchpath;
 253         if (!system_lyxdir.empty())
 254                 searchpath = MakeAbsPath(system_lyxdir) + ';';
 255
 256         string const lyxdir = GetEnvPath("LYX_DIR_13x");
 257
 258         if (!lyxdir.empty()) {
 259                 lyxerr[Debug::INIT] << "LYX_DIR_13x: " << lyxdir << endl;
 260                 searchpath += lyxdir + ';';
 261         }
 262
 263         string fullbinpath = binpath;
 264         FileInfo file(fullbinname, true);
 265         if (file.isLink()) {
 266                 lyxerr[Debug::INIT] << "binary is a link" << endl;
 267                 string link;
 268                 if (LyXReadLink(fullbinname, link, true)) {
 269                         // Path of binary/../share/name of binary/
 270                         searchpath += NormalizePath(AddPath(binpath,
 271                                                             "../share/")
 272                                                     + OnlyFilename(binname));
 273                         searchpath += ';';
 274                         fullbinpath = link;
 275                         binpath = MakeAbsPath(OnlyPath(fullbinpath));
 276                 }
 277         }
 278
 279         bool followlink;
 280         do {
 281                 // Path of binary/../share/name of binary/
 282                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 283                       OnlyFilename(binname)) + ';';
 284
 285                 // Follow Symlinks
 286                 FileInfo file(fullbinpath, true);
 287                 followlink = file.isLink();
 288                 if (followlink) {
 289                         lyxerr << " directory " << fullbinpath
 290                                << " is a link" << endl;
 291                         string link;
 292                         if (LyXReadLink(fullbinpath, link, true)) {
 293                                 fullbinpath = link;
 294                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 295                         }
 296                         else {
 297                                 followlink = false;
 298                         }
 299                 }
 300         } while (followlink);
 301
 302         // <path of binary>/TOP_SRCDIR/lib
 303         build_lyxdir = MakeAbsPath("../lib", binpath);
 304         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 305                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 306                                           binpath) + ';';
 307                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 308                         "place... yes" << endl;
 309         } else {
 310                 lyxerr[Debug::INIT]
 311                         << "Checking whether LyX is run in place... no"
 312                         << endl;
 313                 build_lyxdir.erase();
 314         }
 315
 316         // Hardcoded dir
 317         searchpath += LYX_DIR;
 318
 319         lyxerr[Debug::INIT] << "System directory search path: "
 320                             << searchpath << endl;
 321
 322         string const filename = "chkconfig.ltx";
 323         string const temp = FileOpenSearch(searchpath, filename, string());
 324         system_lyxdir = OnlyPath(temp);
 325
 326         // Reduce "path/../path" stuff out of system directory
 327         system_lyxdir = NormalizePath(system_lyxdir);
 328
 329         bool path_shown = false;
 330
 331         // Warn if environment variable is set, but unusable
 332         if (!lyxdir.empty()) {
 333                 if (system_lyxdir != NormalizePath(lyxdir)) {
 334                         lyxerr <<_("LYX_DIR_13x environment variable no good.")
 335                                << '\n'
 336                                << _("System directory set to: ")
 337                                << system_lyxdir << endl;
 338                         path_shown = true;
 339                 }
 340         }
 341
 342         // Warn the user if we couldn't find "chkconfig.ltx"
 343         if (system_lyxdir == "./") {
 344                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 345                        <<_("Try the '-sysdir' command line parameter or ")
 346                        <<_("set the environment variable LYX_DIR_13x to the "
 347                            "LyX system directory ")
 348                        << _("containing the file `chkconfig.ltx'.") << endl;
 349                 if (!path_shown) {
 350                         FileInfo fi(LYX_DIR);
 351                         if (!fi.exist()) {
 352                                 lyxerr << "Couldn't even find the default LYX_DIR." << endl
 353                                         << "Giving up." << endl;
 354                                 exit(1);
 355                         }
 356                         lyxerr << boost::format(_("Using built-in default %1$s but expect problems.")) % LYX_DIR
 357                                << endl;
 358                 } else {
 359                         lyxerr << _("Expect problems.") << endl;
 360                 }
 361                 system_lyxdir = LYX_DIR;
 362                 path_shown = true;
 363         }
 364
 365         if (!path_shown)
 366                 lyxerr[Debug::INIT] << "System directory: '"
 367                                     << system_lyxdir << '\'' << endl;
 368
 369         //
 370         // Determine user lyx-dir
 371         //
 372
 373         // Directories are searched in this order:
 374         // 1) -userdir command line parameter
 375         // 2) LYX_USERDIR_13x environment variable
 376         // 3) $HOME/.<name of binary>
 377
 378         // If we had a command line switch, user_lyxdir is already set
 379         bool explicit_userdir = true;
 380         if (user_lyxdir.empty()) {
 381
 382                 // LYX_USERDIR_13x environment variable
 383                 user_lyxdir = GetEnvPath("LYX_USERDIR_13x");
 384
 385                 // default behaviour
 386                 if (user_lyxdir.empty())
 387                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 388                                                         string(".") + PACKAGE);
 389                         explicit_userdir = false;
 390         }
 391
 392         lyxerr[Debug::INIT] << "User LyX directory: '"
 393                             <<  user_lyxdir << '\'' << endl;
 394
 395         // Check that user LyX directory is ok. We don't do that if
 396         // running in batch mode.
 397         if (gui) {
 398                 queryUserLyXDir(explicit_userdir);
 399         } else {
 400                 first_start = false;
 401         }
 402
 403         //
 404         // Shine up lyxrc defaults
 405         //
 406
 407         // Default template path: system_dir/templates
 408         if (lyxrc.template_path.empty()) {
 409                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 410         }
 411
 412         // Default lastfiles file: $HOME/.lyx/lastfiles
 413         if (lyxrc.lastfiles.empty()) {
 414                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 415         }
 416
 417         // Disable gui when either lyxrc or easyparse says so
 418         if (!gui)
 419                 lyxrc.use_gui = false;
 420
 421         //
 422         // Read configuration files
 423         //
 424
 425         readRcFile("lyxrc.defaults");
 426         system_lyxrc = lyxrc;
 427         system_formats = formats;
 428         system_converters = converters;
 429         system_lcolor = lcolor;
 430
 431         // If there is a preferences file we read that instead
 432         // of the old lyxrc file.
 433         if (!readRcFile("preferences"))
 434             readRcFile("lyxrc");
 435
 436         readEncodingsFile("encodings");
 437         readLanguagesFile("languages");
 438
 439         // Load the layouts
 440         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 441         LyXSetStyle();
 442
 443         // Ensure that we have really read a bind file, so that LyX is
 444         // usable.
 445         lyxrc.readBindFileIfNeeded();
 446
 447         // Read menus
 448         readUIFile(lyxrc.ui_file);
 449
 450         // Bind the X dead keys to the corresponding LyX functions if
 451         // necessary.
 452         if (lyxrc.override_x_deadkeys)
 453                 deadKeyBindings(toplevel_keymap.get());
 454
 455         if (lyxerr.debugging(Debug::LYXRC)) {
 456                 lyxrc.print();
 457         }
 458
 459         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 460         system_tempdir = os::getTmpDir();
 461         if (lyxerr.debugging(Debug::INIT)) {
 462                 lyxerr << "LyX tmp dir: `" << system_tempdir << '\'' << endl;
 463         }
 464
 465         lyxerr[Debug::INIT] << "Reading lastfiles `"
 466                             << lyxrc.lastfiles << "'..." << endl;
 467         lastfiles.reset(new LastFiles(lyxrc.lastfiles,
 468                                       lyxrc.check_lastfiles,
 469                                       lyxrc.num_lastfiles));
 470 }
 471
 472
 473 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 474 {
 475         kbmap->bind("Right", LFUN_RIGHT);
 476         kbmap->bind("Left", LFUN_LEFT);
 477         kbmap->bind("Up", LFUN_UP);
 478         kbmap->bind("Down", LFUN_DOWN);
 479
 480         kbmap->bind("Tab", LFUN_TAB);
 481         kbmap->bind("ISO_Left_Tab", LFUN_TAB); // jbl 2001-23-02
 482
 483         kbmap->bind("Home", LFUN_HOME);
 484         kbmap->bind("End", LFUN_END);
 485         kbmap->bind("Prior", LFUN_PRIOR);
 486         kbmap->bind("Next", LFUN_NEXT);
 487
 488         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 489         //kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 490
 491         kbmap->bind("Delete", LFUN_DELETE);
 492         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 493
 494         // sub- and superscript -MV
 495         kbmap->bind("~S-underscore", LFUN_SUBSCRIPT);
 496         kbmap->bind("~S-asciicircum", LFUN_SUPERSCRIPT);
 497
 498         // kbmap->bindings to enable the use of the numeric keypad
 499         // e.g. Num Lock set
 500         //kbmap->bind("KP_0", LFUN_SELFINSERT);
 501         //kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 502         kbmap->bind("KP_Enter", LFUN_BREAKPARAGRAPH);
 503         //kbmap->bind("KP_1", LFUN_SELFINSERT);
 504         //kbmap->bind("KP_2", LFUN_SELFINSERT);
 505         //kbmap->bind("KP_3", LFUN_SELFINSERT);
 506         //kbmap->bind("KP_4", LFUN_SELFINSERT);
 507         //kbmap->bind("KP_5", LFUN_SELFINSERT);
 508         //kbmap->bind("KP_6", LFUN_SELFINSERT);
 509         //kbmap->bind("KP_Add", LFUN_SELFINSERT);
 510         //kbmap->bind("KP_7", LFUN_SELFINSERT);
 511         //kbmap->bind("KP_8", LFUN_SELFINSERT);
 512         //kbmap->bind("KP_9", LFUN_SELFINSERT);
 513         //kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 514         //kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 515         //kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 516         kbmap->bind("KP_Right", LFUN_RIGHT);
 517         kbmap->bind("KP_Left", LFUN_LEFT);
 518         kbmap->bind("KP_Up", LFUN_UP);
 519         kbmap->bind("KP_Down", LFUN_DOWN);
 520         kbmap->bind("KP_Home", LFUN_HOME);
 521         kbmap->bind("KP_End", LFUN_END);
 522         kbmap->bind("KP_Prior", LFUN_PRIOR);
 523         kbmap->bind("KP_Next", LFUN_NEXT);
 524
 525         kbmap->bind("C-Tab", LFUN_TABINSERT);  // ale970515
 526         kbmap->bind("S-Tab", LFUN_SHIFT_TAB);  // jug20000522
 527         kbmap->bind("S-ISO_Left_Tab", LFUN_SHIFT_TAB); // jbl 2001-23-02
 528 }
 529
 530
 531 void LyX::emergencyCleanup()
 532 {
 533         // what to do about tmpfiles is non-obvious. we would
 534         // like to delete any we find, but our lyxdir might
 535         // contain documents etc. which might be helpful on
 536         // a crash
 537
 538         bufferlist.emergencyWriteAll();
 539         if (lyxserver)
 540                 lyxserver->emergencyCleanup();
 541 }
 542
 543
 544 void LyX::deadKeyBindings(kb_keymap * kbmap)
 545 {
 546         // bindKeyings for transparent handling of deadkeys
 547         // The keysyms are gotten from XFree86 X11R6
 548         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 549         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 550         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 551         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 552         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 553         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 554         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 555         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 556         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 557         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 558         // nothing with this name
 559         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 560         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 561         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 562         // nothing with this name either...
 563         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 564         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 565         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 566         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 567 }
 568
 569
 570 void LyX::queryUserLyXDir(bool explicit_userdir)
 571 {
 572         string const configure_script = AddName(system_lyxdir, "configure");
 573
 574         // Does user directory exist?
 575         FileInfo fileInfo(user_lyxdir);
 576         if (fileInfo.isOK() && fileInfo.isDir()) {
 577                 first_start = false;
 578                 FileInfo script(configure_script);
 579                 FileInfo defaults(AddName(user_lyxdir, "lyxrc.defaults"));
 580                 if (defaults.isOK() && script.isOK()
 581                     && defaults.getModificationTime() < script.getModificationTime()) {
 582                         lyxerr << _("LyX: reconfiguring user directory")
 583                                << endl;
 584                         Path p(user_lyxdir);
 585                         ::system(configure_script.c_str());
 586                         lyxerr << "LyX: " << _("Done!") << endl;
 587                 }
 588                 return;
 589         }
 590
 591         first_start = !explicit_userdir;
 592
 593         // If the user specified explicitly a directory, ask whether
 594         // to create it (otherwise, always create it)
 595         if (explicit_userdir &&
 596             !Alert::askQuestion(_("You have specified an invalid LyX directory."),
 597                          _("It is needed to keep your own configuration."),
 598                          _("Should I try to set it up for you (recommended)?"))) {
 599                 lyxerr << _("Running without personal LyX directory.") << endl;
 600                 // No, let's use $HOME instead.
 601                 user_lyxdir = GetEnvPath("HOME");
 602                 return;
 603         }
 604
 605         lyxerr << boost::format(_("LyX: Creating directory %1$s and running configure...")) % user_lyxdir << endl;
 606
 607         if (!createDirectory(user_lyxdir, 0755)) {
 608                 // Failed, let's use $HOME instead.
 609                 user_lyxdir = GetEnvPath("HOME");
 610                 lyxerr << boost::format(_("Failed. Will use %1$s instead.")) % user_lyxdir
 611                        << endl;
 612                 return;
 613         }
 614
 615         // Run configure in user lyx directory
 616         Path p(user_lyxdir);
 617         ::system(configure_script.c_str());
 618         lyxerr << "LyX: " << _("Done!") << endl;
 619 }
 620
 621
 622 bool LyX::readRcFile(string const & name)
 623 {
 624         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 625
 626         string const lyxrc_path = LibFileSearch(string(), name);
 627         if (!lyxrc_path.empty()) {
 628                 lyxerr[Debug::INIT] << "Found " << name
 629                                     << " in " << lyxrc_path << endl;
 630                 if (lyxrc.read(lyxrc_path) < 0) {
 631                         Alert::alert(_("LyX Warning!"),
 632                                    boost::io::str(boost::format(_("Error while reading %1$s.")) % lyxrc_path),
 633                                    _("Using built-in defaults."));
 634                         return false;
 635                 }
 636                 return true;
 637         } else {
 638                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 639         }
 640
 641         return false;
 642 }
 643
 644
 645 // Read the ui file `name'
 646 void LyX::readUIFile(string const & name)
 647 {
 648         enum Uitags {
 649                 ui_menuset = 1,
 650                 ui_toolbar,
 651                 ui_last
 652         };
 653
 654         struct keyword_item uitags[ui_last - 1] = {
 655                 { "menuset", ui_menuset },
 656                 { "toolbar", ui_toolbar }
 657         };
 658
 659         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 660
 661         string const ui_path = LibFileSearch("ui", name, "ui");
 662
 663         if (ui_path.empty()) {
 664                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 665                 menubackend.defaults();
 666                 return;
 667         }
 668
 669         lyxerr[Debug::INIT] << "Found " << name
 670                             << " in " << ui_path << endl;
 671         LyXLex lex(uitags, ui_last - 1);
 672         lex.setFile(ui_path);
 673         if (!lex.isOK()) {
 674                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 675                        << endl;
 676         }
 677
 678         if (lyxerr.debugging(Debug::PARSER))
 679                 lex.printTable(lyxerr);
 680
 681         while (lex.isOK()) {
 682                 switch (lex.lex()) {
 683                 case ui_menuset:
 684                         menubackend.read(lex);
 685                         break;
 686
 687                 case ui_toolbar:
 688                         toolbardefaults.read(lex);
 689                         break;
 690
 691                 default:
 692                         if (!rtrim(lex.getString()).empty())
 693                                 lex.printError("LyX::ReadUIFile: "
 694                                                "Unknown menu tag: `$$Token'");
 695                         break;
 696                 }
 697         }
 698 }
 699
 700
 701 // Read the languages file `name'
 702 void LyX::readLanguagesFile(string const & name)
 703 {
 704         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 705
 706         string const lang_path = LibFileSearch(string(), name);
 707         if (lang_path.empty()) {
 708                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 709                 languages.setDefaults();
 710                 return;
 711         }
 712         languages.read(lang_path);
 713 }
 714
 715
 716 // Read the encodings file `name'
 717 void LyX::readEncodingsFile(string const & name)
 718 {
 719         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 720
 721         string const enc_path = LibFileSearch(string(), name);
 722         if (enc_path.empty()) {
 723                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 724                 return;
 725         }
 726         encodings.read(enc_path);
 727 }
 728
 729
 730 namespace {
 731
 732 bool is_gui = true;
 733 string batch;
 734
 735 /// return the the number of arguments consumed
 736 typedef boost::function<int(string const &, string const &)> cmd_helper;
 737
 738 int parse_dbg(string const & arg, string const &)
 739 {
 740         if (arg.empty()) {
 741                 lyxerr << _("List of supported debug flags:") << endl;
 742                 Debug::showTags(lyxerr);
 743                 exit(0);
 744         }
 745         lyxerr << boost::format(_("Setting debug level to %1$s")) % arg << endl;
 746         lyxerr.level(Debug::value(arg));
 747         Debug::showLevel(lyxerr, lyxerr.level());
 748         return 1;
 749 }
 750
 751 int parse_help(string const &, string const &)
 752 {
 753         lyxerr <<
 754                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 755                   "Command line switches (case sensitive):\n"
 756                   "\t-help              summarize LyX usage\n"
 757                   "\t-userdir dir       try to set user directory to dir\n"
 758                   "\t-sysdir dir        try to set system directory to dir\n"
 759                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 760                   "\t-dbg feature[,feature]...\n"
 761                   "                  select the features to debug.\n"
 762                   "                  Type `lyx -dbg' to see the list of features\n"
 763                   "\t-x [--execute] command\n"
 764                   "                  where command is a lyx command.\n"
 765                   "\t-e [--export] fmt\n"
 766                   "                  where fmt is the export format of choice.\n"
 767                   "\t-i [--import] fmt file.xxx\n"
 768                   "                  where fmt is the import format of choice\n"
 769                   "                  and file.xxx is the file to be imported.\n"
 770                   "\t-version        summarize version and build info\n"
 771                   "Check the LyX man page for more details.") << endl;
 772         exit(0);
 773         return 0;
 774 }
 775
 776 int parse_version(string const &, string const &)
 777 {
 778         lyxerr << "LyX " << lyx_version
 779                << " of " << lyx_release_date << endl;
 780         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 781
 782         lyxerr << lyx_version_info << endl;
 783         exit(0);
 784         return 0;
 785 }
 786
 787 int parse_sysdir(string const & arg, string const &)
 788 {
 789         if (arg.empty()) {
 790                 lyxerr << _("Missing directory for -sysdir switch") << endl;
 791                 exit(1);
 792         }
 793         system_lyxdir = arg;
 794         return 1;
 795 }
 796
 797 int parse_userdir(string const & arg, string const &)
 798 {
 799         if (arg.empty()) {
 800                 lyxerr << _("Missing directory for -userdir switch") << endl;
 801                 exit(1);
 802         }
 803         user_lyxdir = arg;
 804         return 1;
 805 }
 806
 807 int parse_execute(string const & arg, string const &)
 808 {
 809         if (arg.empty()) {
 810                 lyxerr << _("Missing command string after --execute switch") << endl;
 811                 exit(1);
 812         }
 813         batch = arg;
 814         // Argh. Setting gui to false segfaults..
 815         // FIXME: when ? how ?
 816         // is_gui = false;
 817         return 1;
 818 }
 819
 820 int parse_export(string const & type, string const &)
 821 {
 822         if (type.empty()) {
 823                 lyxerr << _("Missing file type [eg latex, ps...] after "
 824                         "--export switch") << endl;
 825                 exit(1);
 826         }
 827         batch = "buffer-export " + type;
 828         is_gui = false;
 829         return 1;
 830 }
 831
 832 int parse_import(string const & type, string const & file)
 833 {
 834         if (type.empty()) {
 835                 lyxerr << _("Missing file type [eg latex, ps...] after "
 836                         "--import switch") << endl;
 837                 exit(1);
 838         }
 839         if (file.empty()) {
 840                 lyxerr << _("Missing filename for --import") << endl;
 841                 exit(1);
 842         }
 843
 844         batch = "buffer-import " + type + " " + file;
 845         return 2;
 846 }
 847
 848 } // namespace anon
 849
 850
 851 bool LyX::easyParse(int & argc, char * argv[])
 852 {
 853         std::map<string, cmd_helper> cmdmap;
 854
 855         cmdmap["-dbg"] = parse_dbg;
 856         cmdmap["-help"] = parse_help;
 857         cmdmap["--help"] = parse_help;
 858         cmdmap["-version"] = parse_version;
 859         cmdmap["--version"] = parse_version;
 860         cmdmap["-sysdir"] = parse_sysdir;
 861         cmdmap["-userdir"] = parse_userdir;
 862         cmdmap["-x"] = parse_execute;
 863         cmdmap["--execute"] = parse_execute;
 864         cmdmap["-e"] = parse_export;
 865         cmdmap["--export"] = parse_export;
 866         cmdmap["-i"] = parse_import;
 867         cmdmap["--import"] = parse_import;
 868
 869         for (int i = 1; i < argc; ++i) {
 870                 std::map<string, cmd_helper>::const_iterator it
 871                         = cmdmap.find(argv[i]);
 872
 873                 // don't complain if not found - may be parsed later
 874                 if (it == cmdmap.end())
 875                         continue;
 876
 877                 string arg((i + 1 < argc) ? argv[i + 1] : "");
 878                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
 879
 880                 int const remove = 1 + it->second(arg, arg2);
 881
 882                 // Now, remove used arguments by shifting
 883                 // the following ones remove places down.
 884                 argc -= remove;
 885                 for (int j = i; j < argc; ++j)
 886                         argv[j] = argv[j + remove];
 887                 --i;
 888         }
 889
 890         batch_command = batch;
 891
 892         return is_gui;
 893 }