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 #include "lyx_main.h"
  13
  14 #include "support/filetools.h"
  15 #include "support/lyxlib.h"
  16 #include "support/os.h"
  17 #include "support/FileInfo.h"
  18 #include "support/path.h"
  19 #include "debug.h"
  20 #include "gettext.h"
  21 #include "lyxlex.h"
  22
  23 #include "graphics/GraphicsTypes.h"
  24
  25 #include "bufferlist.h"
  26 #include "buffer.h"
  27 #include "buffer_funcs.h"
  28 #include "lyxserver.h"
  29 #include "kbmap.h"
  30 #include "lyxfunc.h"
  31 #include "ToolbarBackend.h"
  32 #include "MenuBackend.h"
  33 #include "language.h"
  34 #include "lastfiles.h"
  35 #include "encoding.h"
  36 #include "converter.h"
  37 #include "format.h"
  38 #include "lyxtextclasslist.h"
  39
  40 #include "frontends/Alert.h"
  41 #include "frontends/lyx_gui.h"
  42
  43 #include <boost/function.hpp>
  44
  45 #include <cstdlib>
  46 #include <csignal>
  47
  48 using std::vector;
  49 using std::endl;
  50
  51 #ifndef CXX_GLOBAL_CSTD
  52 using std::exit;
  53 using std::signal;
  54 using std::system;
  55 #endif
  56
  57 extern void LoadLyXFile(string const &);
  58 extern void QuitLyX();
  59
  60 extern LyXServer * lyxserver;
  61
  62 string system_lyxdir;
  63 string build_lyxdir;
  64 string system_tempdir;
  65 string user_lyxdir;
  66
  67 DebugStream lyxerr;
  68
  69 boost::scoped_ptr<LastFiles> lastfiles;
  70
  71 // This is the global bufferlist object
  72 BufferList bufferlist;
  73
  74 // convenient to have it here.
  75 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  76
  77 namespace {
  78
  79 void showFileError(string const & error)
  80 {
  81         Alert::warning(_("Could not read configuration file"),
  82                    bformat(_("Error while reading the configuration file\n%1$s.\n"
  83                      "Please check your installation."), error));
  84         exit(EXIT_FAILURE);
  85 }
  86
  87 }
  88
  89 LyX::LyX(int & argc, char * argv[])
  90 {
  91         // Here we need to parse the command line. At least
  92         // we need to parse for "-dbg" and "-help"
  93         bool const want_gui = easyParse(argc, argv);
  94
  95         // Global bindings (this must be done as early as possible.) (Lgb)
  96         toplevel_keymap.reset(new kb_keymap);
  97         defaultKeyBindings(toplevel_keymap.get());
  98
  99         // set the DisplayTranslator only once; should that be done here??
 100         // if this should not be in this file, please also remove
 101         // #include "graphics/GraphicsTypes.h" at the top -- Rob Lahaye.
 102         grfx::setDisplayTranslator();
 103
 104         if (want_gui) {
 105                 lyx_gui::parse_init(argc, argv);
 106         }
 107
 108         // check for any spurious extra arguments
 109         // other than documents
 110         for (int argi = 1; argi < argc ; ++argi) {
 111                 if (argv[argi][0] == '-') {
 112                         lyxerr << bformat(_("Wrong command line option `%1$s'. Exiting."),
 113                                 argv[argi]) << endl;
 114                         exit(1);
 115                 }
 116         }
 117
 118         // Initialization of LyX (reads lyxrc and more)
 119         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 120         init(want_gui);
 121         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 122
 123         if (want_gui) {
 124                 lyx_gui::parse_lyxrc();
 125         }
 126
 127         vector<string> files;
 128
 129         for (int argi = argc - 1; argi >= 1; --argi) {
 130                 files.push_back(argv[argi]);
 131         }
 132
 133         if (first_start)
 134                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 135
 136         // Execute batch commands if available
 137         if (!batch_command.empty()) {
 138                 lyxerr[Debug::INIT] << "About to handle -x '"
 139                        << batch_command << '\'' << endl;
 140
 141                 Buffer * last_loaded = 0;
 142
 143                 vector<string>::iterator it = files.begin();
 144                 vector<string>::iterator end = files.end();
 145                 for (; it != end; ++it) {
 146                         last_loaded = bufferlist.newBuffer(*it, false);
 147                         loadLyXFile(last_loaded, *it);
 148                 }
 149
 150                 files.clear();
 151
 152                 // no buffer loaded, create one
 153                 string const tmpfile = "tmpfile";
 154                 if (!last_loaded)
 155                         last_loaded = newFile(tmpfile, string());
 156
 157                 bool success = false;
 158
 159                 // try to dispatch to last loaded buffer first
 160                 bool const dispatched = last_loaded->dispatch(batch_command, &success);
 161
 162                 if (dispatched) {
 163                         QuitLyX();
 164                         exit(!success);
 165                 }
 166         }
 167
 168         lyx_gui::start(batch_command, files);
 169 }
 170
 171
 172 extern "C" {
 173
 174 static void error_handler(int err_sig)
 175 {
 176         switch (err_sig) {
 177         case SIGHUP:
 178                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 179                 break;
 180         case SIGINT:
 181                 // no comments
 182                 break;
 183         case SIGFPE:
 184                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 185                 break;
 186         case SIGSEGV:
 187                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 188                 lyxerr <<
 189                         "Sorry, you have found a bug in LyX. "
 190                         "Please read the bug-reporting instructions "
 191                         "in Help->Introduction and send us a bug report, "
 192                         "if necessary. Thanks !" << endl;
 193                 break;
 194         case SIGTERM:
 195                 // no comments
 196                 break;
 197         }
 198
 199         // Deinstall the signal handlers
 200         signal(SIGHUP, SIG_DFL);
 201         signal(SIGINT, SIG_DFL);
 202         signal(SIGFPE, SIG_DFL);
 203         signal(SIGSEGV, SIG_DFL);
 204         signal(SIGTERM, SIG_DFL);
 205
 206         LyX::emergencyCleanup();
 207
 208         lyxerr << "Bye." << endl;
 209         if (err_sig!= SIGHUP &&
 210            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 211                 lyx::abort();
 212         exit(0);
 213 }
 214
 215 }
 216
 217
 218 void LyX::init(bool gui)
 219 {
 220         signal(SIGHUP, error_handler);
 221         signal(SIGFPE, error_handler);
 222         signal(SIGSEGV, error_handler);
 223         signal(SIGINT, error_handler);
 224         signal(SIGTERM, error_handler);
 225
 226         //
 227         // Determine path of binary
 228         //
 229
 230         string binpath = os::binpath();
 231         string binname = os::binname();
 232         string fullbinname = MakeAbsPath(binname, binpath);
 233
 234         if (binpath.empty()) {
 235                 lyxerr << _("Warning: could not determine path of binary.")
 236                        << "\n"
 237                        << _("If you have problems, try starting LyX with an absolute path.")
 238                        << endl;
 239         }
 240         lyxerr[Debug::INIT] << "Name of binary: " << binname << endl;
 241         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 242
 243         //
 244         // Determine system directory.
 245         //
 246
 247         // Directories are searched in this order:
 248         // 1) -sysdir command line parameter
 249         // 2) LYX_DIR_13x environment variable
 250         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 251         // 4) <path of binary>/../share/<name of binary>/
 252         // 4a) repeat 4 after following the Symlink if <path of
 253         //     binary> is a symbolic link.
 254         // 5) hardcoded lyx_dir
 255         // The directory is checked for the presence of the file
 256         // "chkconfig.ltx", and if that is present, the directory
 257         // is accepted as the system directory.
 258         // If no chkconfig.ltx file is found, a warning is given,
 259         // and the hardcoded lyx_dir is used.
 260
 261         // If we had a command line switch, system_lyxdir is already set
 262         string searchpath;
 263         if (!system_lyxdir.empty())
 264                 searchpath = MakeAbsPath(system_lyxdir) + ';';
 265
 266         string const lyxdir = GetEnvPath("LYX_DIR_13x");
 267
 268         if (!lyxdir.empty()) {
 269                 lyxerr[Debug::INIT] << "LYX_DIR_13x: " << lyxdir << endl;
 270                 searchpath += lyxdir + ';';
 271         }
 272
 273         string fullbinpath = binpath;
 274         FileInfo file(fullbinname, true);
 275         if (file.isLink()) {
 276                 lyxerr[Debug::INIT] << "binary is a link" << endl;
 277                 string link;
 278                 if (LyXReadLink(fullbinname, link, true)) {
 279                         // Path of binary/../share/name of binary/
 280                         searchpath += NormalizePath(AddPath(binpath,
 281                                                             "../share/")
 282                                                     + OnlyFilename(binname));
 283                         searchpath += ';';
 284                         fullbinpath = link;
 285                         binpath = MakeAbsPath(OnlyPath(fullbinpath));
 286                 }
 287         }
 288
 289         bool followlink;
 290         do {
 291                 // Path of binary/../share/name of binary/
 292                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 293                       OnlyFilename(binname)) + ';';
 294
 295                 // Follow Symlinks
 296                 FileInfo file(fullbinpath, true);
 297                 followlink = file.isLink();
 298                 if (followlink) {
 299                         lyxerr[Debug::INIT] << " directory " << fullbinpath
 300                                             << " is a link" << endl;
 301                         string link;
 302                         if (LyXReadLink(fullbinpath, link, true)) {
 303                                 fullbinpath = link;
 304                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 305                         }
 306                         else {
 307                                 followlink = false;
 308                         }
 309                 }
 310         } while (followlink);
 311
 312         // <path of binary>/TOP_SRCDIR/lib
 313         build_lyxdir = MakeAbsPath("../lib", binpath);
 314         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 315                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 316                                           binpath) + ';';
 317                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 318                         "place... yes" << endl;
 319         } else {
 320                 lyxerr[Debug::INIT]
 321                         << "Checking whether LyX is run in place... no"
 322                         << endl;
 323                 build_lyxdir.erase();
 324         }
 325
 326         // Hardcoded dir
 327         searchpath += LYX_DIR;
 328
 329         lyxerr[Debug::INIT] << "System directory search path: "
 330                             << searchpath << endl;
 331
 332         string const filename = "chkconfig.ltx";
 333         string const temp = FileOpenSearch(searchpath, filename, string());
 334         system_lyxdir = OnlyPath(temp);
 335
 336         // Reduce "path/../path" stuff out of system directory
 337         system_lyxdir = NormalizePath(system_lyxdir);
 338
 339         bool path_shown = false;
 340
 341         // Warn if environment variable is set, but unusable
 342         if (!lyxdir.empty()) {
 343                 if (system_lyxdir != NormalizePath(lyxdir)) {
 344                         lyxerr <<_("LYX_DIR_13x environment variable no good.")
 345                                << '\n'
 346                                << _("System directory set to: ")
 347                                << system_lyxdir << endl;
 348                         path_shown = true;
 349                 }
 350         }
 351
 352         // Warn the user if we couldn't find "chkconfig.ltx"
 353         if (system_lyxdir == "./") {
 354                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 355                        <<_("Try the '-sysdir' command line parameter or ")
 356                        <<_("set the environment variable LYX_DIR_13x to the "
 357                            "LyX system directory ")
 358                        << _("containing the file `chkconfig.ltx'.") << endl;
 359                 if (!path_shown) {
 360                         FileInfo fi(LYX_DIR);
 361                         if (!fi.exist()) {
 362                                 lyxerr << "Couldn't even find the default LYX_DIR." << endl
 363                                         << "Giving up." << endl;
 364                                 exit(1);
 365                         }
 366                         lyxerr << bformat(_("Using built-in default %1$s but expect problems."),
 367                                 LYX_DIR) << endl;
 368                 } else {
 369                         lyxerr << _("Expect problems.") << endl;
 370                 }
 371                 system_lyxdir = LYX_DIR;
 372                 path_shown = true;
 373         }
 374
 375         if (!path_shown)
 376                 lyxerr[Debug::INIT] << "System directory: '"
 377                                     << system_lyxdir << '\'' << endl;
 378
 379         //
 380         // Determine user lyx-dir
 381         //
 382
 383         // Directories are searched in this order:
 384         // 1) -userdir command line parameter
 385         // 2) LYX_USERDIR_13x environment variable
 386         // 3) $HOME/.<name of binary>
 387
 388         // If we had a command line switch, user_lyxdir is already set
 389         bool explicit_userdir = true;
 390         if (user_lyxdir.empty()) {
 391
 392                 // LYX_USERDIR_13x environment variable
 393                 user_lyxdir = GetEnvPath("LYX_USERDIR_13x");
 394
 395                 // default behaviour
 396                 if (user_lyxdir.empty())
 397                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 398                                                         string(".") + PACKAGE);
 399                         explicit_userdir = false;
 400         }
 401
 402         lyxerr[Debug::INIT] << "User LyX directory: '"
 403                             <<  user_lyxdir << '\'' << endl;
 404
 405         // Check that user LyX directory is ok. We don't do that if
 406         // running in batch mode.
 407         if (gui) {
 408                 queryUserLyXDir(explicit_userdir);
 409         } else {
 410                 first_start = false;
 411         }
 412
 413         // Disable gui when easyparse says so
 414         lyx_gui::use_gui = gui;
 415
 416         if (lyxrc.template_path.empty()) {
 417                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 418         }
 419
 420         if (lyxrc.lastfiles.empty()) {
 421                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 422         }
 423
 424         if (lyxrc.roman_font_name.empty())
 425                 lyxrc.roman_font_name = lyx_gui::roman_font_name();
 426         if (lyxrc.sans_font_name.empty())
 427                 lyxrc.sans_font_name = lyx_gui::sans_font_name();
 428         if (lyxrc.typewriter_font_name.empty())
 429                 lyxrc.typewriter_font_name = lyx_gui::typewriter_font_name();
 430
 431         //
 432         // Read configuration files
 433         //
 434
 435         readRcFile("lyxrc.defaults");
 436         system_lyxrc = lyxrc;
 437         system_formats = formats;
 438         system_converters = converters;
 439         system_lcolor = lcolor;
 440
 441         string prefsfile = "preferences";
 442         // back compatibility to lyxs < 1.1.6
 443         if (LibFileSearch(string(), prefsfile).empty())
 444                 prefsfile = "lyxrc";
 445         if (!LibFileSearch(string(), prefsfile).empty())
 446                 readRcFile(prefsfile);
 447
 448         readEncodingsFile("encodings");
 449         readLanguagesFile("languages");
 450
 451         // Load the layouts
 452         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 453         LyXSetStyle();
 454
 455         // Ensure that we have really read a bind file, so that LyX is
 456         // usable.
 457         lyxrc.readBindFileIfNeeded();
 458
 459         // Read menus
 460         readUIFile(lyxrc.ui_file);
 461
 462         if (lyxerr.debugging(Debug::LYXRC))
 463                 lyxrc.print();
 464
 465         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 466         system_tempdir = os::getTmpDir();
 467         if (lyxerr.debugging(Debug::INIT)) {
 468                 lyxerr << "LyX tmp dir: `" << system_tempdir << '\'' << endl;
 469         }
 470
 471         lyxerr[Debug::INIT] << "Reading lastfiles `"
 472                             << lyxrc.lastfiles << "'..." << endl;
 473         lastfiles.reset(new LastFiles(lyxrc.lastfiles,
 474                                       lyxrc.check_lastfiles,
 475                                       lyxrc.num_lastfiles));
 476 }
 477
 478
 479 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 480 {
 481         kbmap->bind("Right", LFUN_RIGHT);
 482         kbmap->bind("Left", LFUN_LEFT);
 483         kbmap->bind("Up", LFUN_UP);
 484         kbmap->bind("Down", LFUN_DOWN);
 485
 486         kbmap->bind("Tab", LFUN_CELL_FORWARD);
 487         kbmap->bind("ISO_Left_Tab", LFUN_CELL_FORWARD); // jbl 2001-23-02
 488
 489         kbmap->bind("Home", LFUN_HOME);
 490         kbmap->bind("End", LFUN_END);
 491         kbmap->bind("Prior", LFUN_PRIOR);
 492         kbmap->bind("Next", LFUN_NEXT);
 493
 494         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 495         //kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 496
 497         kbmap->bind("Delete", LFUN_DELETE);
 498         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 499
 500         // sub- and superscript -MV
 501         kbmap->bind("~S-underscore", LFUN_SUBSCRIPT);
 502         kbmap->bind("~S-asciicircum", LFUN_SUPERSCRIPT);
 503
 504         // kbmap->bindings to enable the use of the numeric keypad
 505         // e.g. Num Lock set
 506         //kbmap->bind("KP_0", LFUN_SELFINSERT);
 507         //kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 508         kbmap->bind("KP_Enter", LFUN_BREAKPARAGRAPH);
 509         //kbmap->bind("KP_1", LFUN_SELFINSERT);
 510         //kbmap->bind("KP_2", LFUN_SELFINSERT);
 511         //kbmap->bind("KP_3", LFUN_SELFINSERT);
 512         //kbmap->bind("KP_4", LFUN_SELFINSERT);
 513         //kbmap->bind("KP_5", LFUN_SELFINSERT);
 514         //kbmap->bind("KP_6", LFUN_SELFINSERT);
 515         //kbmap->bind("KP_Add", LFUN_SELFINSERT);
 516         //kbmap->bind("KP_7", LFUN_SELFINSERT);
 517         //kbmap->bind("KP_8", LFUN_SELFINSERT);
 518         //kbmap->bind("KP_9", LFUN_SELFINSERT);
 519         //kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 520         //kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 521         //kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 522         kbmap->bind("KP_Right", LFUN_RIGHT);
 523         kbmap->bind("KP_Left", LFUN_LEFT);
 524         kbmap->bind("KP_Up", LFUN_UP);
 525         kbmap->bind("KP_Down", LFUN_DOWN);
 526         kbmap->bind("KP_Home", LFUN_HOME);
 527         kbmap->bind("KP_End", LFUN_END);
 528         kbmap->bind("KP_Prior", LFUN_PRIOR);
 529         kbmap->bind("KP_Next", LFUN_NEXT);
 530
 531         kbmap->bind("C-Tab", LFUN_CELL_SPLIT);  // ale970515
 532         kbmap->bind("S-Tab", LFUN_CELL_BACKWARD);  // jug20000522
 533         kbmap->bind("S-ISO_Left_Tab", LFUN_CELL_BACKWARD); // jbl 2001-23-02
 534 }
 535
 536
 537 void LyX::emergencyCleanup()
 538 {
 539         // what to do about tmpfiles is non-obvious. we would
 540         // like to delete any we find, but our lyxdir might
 541         // contain documents etc. which might be helpful on
 542         // a crash
 543
 544         bufferlist.emergencyWriteAll();
 545         if (lyxserver)
 546                 lyxserver->emergencyCleanup();
 547 }
 548
 549
 550 void LyX::deadKeyBindings(kb_keymap * kbmap)
 551 {
 552         // bindKeyings for transparent handling of deadkeys
 553         // The keysyms are gotten from XFree86 X11R6
 554         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 555         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 556         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 557         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 558         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 559         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 560         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 561         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 562         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 563         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 564         // nothing with this name
 565         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 566         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 567         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 568         // nothing with this name either...
 569         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 570         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 571         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 572         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 573 }
 574
 575
 576 void LyX::queryUserLyXDir(bool explicit_userdir)
 577 {
 578         string const configure_script = AddName(system_lyxdir, "configure");
 579
 580         // Does user directory exist?
 581         FileInfo fileInfo(user_lyxdir);
 582         if (fileInfo.isOK() && fileInfo.isDir()) {
 583                 first_start = false;
 584                 FileInfo script(configure_script);
 585                 FileInfo defaults(AddName(user_lyxdir, "lyxrc.defaults"));
 586                 if (defaults.isOK() && script.isOK()
 587                     && defaults.getModificationTime() < script.getModificationTime()) {
 588                         lyxerr << _("LyX: reconfiguring user directory")
 589                                << endl;
 590                         Path p(user_lyxdir);
 591                         ::system(configure_script.c_str());
 592                         lyxerr << "LyX: " << _("Done!") << endl;
 593                 }
 594                 return;
 595         }
 596
 597         first_start = !explicit_userdir;
 598
 599         lyxerr << bformat(_("LyX: Creating directory %1$s"
 600                                   " and running configure..."), user_lyxdir) << endl;
 601
 602         if (!createDirectory(user_lyxdir, 0755)) {
 603                 // Failed, let's use $HOME instead.
 604                 user_lyxdir = GetEnvPath("HOME");
 605                 lyxerr << bformat(_("Failed. Will use %1$s instead."),
 606                         user_lyxdir) << endl;
 607                 return;
 608         }
 609
 610         // Run configure in user lyx directory
 611         Path p(user_lyxdir);
 612         ::system(configure_script.c_str());
 613         lyxerr << "LyX: " << _("Done!") << endl;
 614 }
 615
 616
 617 void LyX::readRcFile(string const & name)
 618 {
 619         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 620
 621         string const lyxrc_path = LibFileSearch(string(), name);
 622         if (!lyxrc_path.empty()) {
 623
 624                 lyxerr[Debug::INIT] << "Found " << name
 625                                     << " in " << lyxrc_path << endl;
 626
 627                 if (lyxrc.read(lyxrc_path) >= 0)
 628                         return;
 629         }
 630
 631         showFileError(name);
 632 }
 633
 634
 635 // Read the ui file `name'
 636 void LyX::readUIFile(string const & name)
 637 {
 638         enum Uitags {
 639                 ui_menuset = 1,
 640                 ui_toolbar,
 641                 ui_toolbars,
 642                 ui_include,
 643                 ui_last
 644         };
 645
 646         struct keyword_item uitags[ui_last - 1] = {
 647                 { "include", ui_include },
 648                 { "menuset", ui_menuset },
 649                 { "toolbar", ui_toolbar },
 650                 { "toolbars", ui_toolbars }
 651         };
 652
 653         // Ensure that a file is read only once (prevents include loops)
 654         static std::list<string> uifiles;
 655         std::list<string>::const_iterator it  = uifiles.begin();
 656         std::list<string>::const_iterator end = uifiles.end();
 657         it = std::find(it, end, name);
 658         if (it != end) {
 659                 lyxerr[Debug::INIT] << "UI file '" << name
 660                                     << "' has been read already. "
 661                                     << "Is this an include loop?"
 662                                     << endl;
 663                 return;
 664         }
 665
 666         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 667
 668         string const ui_path = LibFileSearch("ui", name, "ui");
 669
 670         if (ui_path.empty()) {
 671                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 672                 showFileError(name);
 673                 return;
 674         }
 675         uifiles.push_back(name);
 676
 677         lyxerr[Debug::INIT] << "Found " << name
 678                             << " in " << ui_path << endl;
 679         LyXLex lex(uitags, ui_last - 1);
 680         lex.setFile(ui_path);
 681         if (!lex.isOK()) {
 682                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 683                        << endl;
 684         }
 685
 686         if (lyxerr.debugging(Debug::PARSER))
 687                 lex.printTable(lyxerr);
 688
 689         while (lex.isOK()) {
 690                 switch (lex.lex()) {
 691                 case ui_include: {
 692                         lex.next(true);
 693                         string const file = lex.getString();
 694                         readUIFile(file);
 695                         break;
 696                 }
 697                 case ui_menuset:
 698                         menubackend.read(lex);
 699                         break;
 700
 701                 case ui_toolbar:
 702                         toolbarbackend.read(lex);
 703                         break;
 704
 705                 case ui_toolbars:
 706                         toolbarbackend.readToolbars(lex);
 707                         break;
 708
 709                 default:
 710                         if (!rtrim(lex.getString()).empty())
 711                                 lex.printError("LyX::ReadUIFile: "
 712                                                "Unknown menu tag: `$$Token'");
 713                         break;
 714                 }
 715         }
 716 }
 717
 718
 719 // Read the languages file `name'
 720 void LyX::readLanguagesFile(string const & name)
 721 {
 722         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 723
 724         string const lang_path = LibFileSearch(string(), name);
 725         if (lang_path.empty()) {
 726                 showFileError(name);
 727                 return;
 728         }
 729         languages.read(lang_path);
 730 }
 731
 732
 733 // Read the encodings file `name'
 734 void LyX::readEncodingsFile(string const & name)
 735 {
 736         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 737
 738         string const enc_path = LibFileSearch(string(), name);
 739         if (enc_path.empty()) {
 740                 showFileError(name);
 741                 return;
 742         }
 743         encodings.read(enc_path);
 744 }
 745
 746
 747 namespace {
 748
 749 bool is_gui = true;
 750 string batch;
 751
 752 /// return the the number of arguments consumed
 753 typedef boost::function<int(string const &, string const &)> cmd_helper;
 754
 755 int parse_dbg(string const & arg, string const &)
 756 {
 757         if (arg.empty()) {
 758                 lyxerr << _("List of supported debug flags:") << endl;
 759                 Debug::showTags(lyxerr);
 760                 exit(0);
 761         }
 762         lyxerr << bformat(_("Setting debug level to %1$s"), arg) << endl;
 763
 764         lyxerr.level(Debug::value(arg));
 765         Debug::showLevel(lyxerr, lyxerr.level());
 766         return 1;
 767 }
 768
 769
 770 int parse_help(string const &, string const &)
 771 {
 772         lyxerr <<
 773                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 774                   "Command line switches (case sensitive):\n"
 775                   "\t-help              summarize LyX usage\n"
 776                   "\t-userdir dir       try to set user directory to dir\n"
 777                   "\t-sysdir dir        try to set system directory to dir\n"
 778                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 779                   "\t-dbg feature[,feature]...\n"
 780                   "                  select the features to debug.\n"
 781                   "                  Type `lyx -dbg' to see the list of features\n"
 782                   "\t-x [--execute] command\n"
 783                   "                  where command is a lyx command.\n"
 784                   "\t-e [--export] fmt\n"
 785                   "                  where fmt is the export format of choice.\n"
 786                   "\t-i [--import] fmt file.xxx\n"
 787                   "                  where fmt is the import format of choice\n"
 788                   "                  and file.xxx is the file to be imported.\n"
 789                   "\t-version        summarize version and build info\n"
 790                   "Check the LyX man page for more details.") << endl;
 791         exit(0);
 792         return 0;
 793 }
 794
 795 int parse_version(string const &, string const &)
 796 {
 797         lyxerr << "LyX " << lyx_version
 798                << " of " << lyx_release_date << endl;
 799         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 800
 801         lyxerr << lyx_version_info << endl;
 802         exit(0);
 803         return 0;
 804 }
 805
 806 int parse_sysdir(string const & arg, string const &)
 807 {
 808         if (arg.empty()) {
 809                 lyxerr << _("Missing directory for -sysdir switch") << endl;
 810                 exit(1);
 811         }
 812         system_lyxdir = arg;
 813         return 1;
 814 }
 815
 816 int parse_userdir(string const & arg, string const &)
 817 {
 818         if (arg.empty()) {
 819                 lyxerr << _("Missing directory for -userdir switch") << endl;
 820                 exit(1);
 821         }
 822         user_lyxdir = arg;
 823         return 1;
 824 }
 825
 826 int parse_execute(string const & arg, string const &)
 827 {
 828         if (arg.empty()) {
 829                 lyxerr << _("Missing command string after --execute switch") << endl;
 830                 exit(1);
 831         }
 832         batch = arg;
 833         // Argh. Setting gui to false segfaults..
 834         // FIXME: when ? how ?
 835         // is_gui = false;
 836         return 1;
 837 }
 838
 839 int parse_export(string const & type, string const &)
 840 {
 841         if (type.empty()) {
 842                 lyxerr << _("Missing file type [eg latex, ps...] after "
 843                         "--export switch") << endl;
 844                 exit(1);
 845         }
 846         batch = "buffer-export " + type;
 847         is_gui = false;
 848         return 1;
 849 }
 850
 851 int parse_import(string const & type, string const & file)
 852 {
 853         if (type.empty()) {
 854                 lyxerr << _("Missing file type [eg latex, ps...] after "
 855                         "--import switch") << endl;
 856                 exit(1);
 857         }
 858         if (file.empty()) {
 859                 lyxerr << _("Missing filename for --import") << endl;
 860                 exit(1);
 861         }
 862
 863         batch = "buffer-import " + type + ' ' + file;
 864         return 2;
 865 }
 866
 867 } // namespace anon
 868
 869
 870 bool LyX::easyParse(int & argc, char * argv[])
 871 {
 872         std::map<string, cmd_helper> cmdmap;
 873
 874         cmdmap["-dbg"] = parse_dbg;
 875         cmdmap["-help"] = parse_help;
 876         cmdmap["--help"] = parse_help;
 877         cmdmap["-version"] = parse_version;
 878         cmdmap["--version"] = parse_version;
 879         cmdmap["-sysdir"] = parse_sysdir;
 880         cmdmap["-userdir"] = parse_userdir;
 881         cmdmap["-x"] = parse_execute;
 882         cmdmap["--execute"] = parse_execute;
 883         cmdmap["-e"] = parse_export;
 884         cmdmap["--export"] = parse_export;
 885         cmdmap["-i"] = parse_import;
 886         cmdmap["--import"] = parse_import;
 887
 888         for (int i = 1; i < argc; ++i) {
 889                 std::map<string, cmd_helper>::const_iterator it
 890                         = cmdmap.find(argv[i]);
 891
 892                 // don't complain if not found - may be parsed later
 893                 if (it == cmdmap.end())
 894                         continue;
 895
 896                 string arg((i + 1 < argc) ? argv[i + 1] : "");
 897                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
 898
 899                 int const remove = 1 + it->second(arg, arg2);
 900
 901                 // Now, remove used arguments by shifting
 902                 // the following ones remove places down.
 903                 argc -= remove;
 904                 for (int j = i; j < argc; ++j)
 905                         argv[j] = argv[j + remove];
 906                 --i;
 907         }
 908
 909         batch_command = batch;
 910
 911         return is_gui;
 912 }