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