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 Lars Gullik Bjønnes
   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 #include <boost/bind.hpp>
  45 #include <boost/signals/signal1.hpp>
  46
  47 #include <cstdlib>
  48 #include <csignal>
  49 #include <iostream>
  50
  51 using namespace lyx::support;
  52
  53 using std::vector;
  54 using std::endl;
  55
  56 #ifndef CXX_GLOBAL_CSTD
  57 using std::exit;
  58 using std::signal;
  59 using std::system;
  60 #endif
  61
  62 extern void LoadLyXFile(string const &);
  63 extern void QuitLyX();
  64
  65 extern LyXServer * lyxserver;
  66
  67 string system_lyxdir;
  68 string build_lyxdir;
  69 string user_lyxdir;
  70
  71 DebugStream lyxerr;
  72
  73 boost::scoped_ptr<LastFiles> lastfiles;
  74
  75 // This is the global bufferlist object
  76 BufferList bufferlist;
  77
  78 // convenient to have it here.
  79 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  80
  81 namespace {
  82
  83 void showFileError(string const & error)
  84 {
  85         Alert::warning(_("Could not read configuration file"),
  86                    bformat(_("Error while reading the configuration file\n%1$s.\n"
  87                      "Please check your installation."), error));
  88         exit(EXIT_FAILURE);
  89 }
  90
  91 }
  92
  93 LyX::LyX(int & argc, char * argv[])
  94 {
  95         // Here we need to parse the command line. At least
  96         // we need to parse for "-dbg" and "-help"
  97         bool const want_gui = easyParse(argc, argv);
  98
  99         // set the DisplayTranslator only once; should that be done here??
 100         // if this should not be in this file, please also remove
 101         // #include "graphics/GraphicsTypes.h" at the top -- Rob Lahaye.
 102         lyx::graphics::setDisplayTranslator();
 103
 104         if (want_gui) {
 105                 lyx_gui::parse_init(argc, argv);
 106         }
 107
 108         // check for any spurious extra arguments
 109         // other than documents
 110         for (int argi = 1; argi < argc ; ++argi) {
 111                 if (argv[argi][0] == '-') {
 112                         lyxerr << bformat(_("Wrong command line option `%1$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
 139                 lyxerr[Debug::INIT] << "About to handle -x '"
 140                        << batch_command << '\'' << endl;
 141
 142                 Buffer * last_loaded = 0;
 143
 144                 vector<string>::const_iterator it = files.begin();
 145                 vector<string>::const_iterator end = files.end();
 146
 147                 for (; it != end; ++it) {
 148                         // get absolute path of file and add ".lyx" to
 149                         // the filename if necessary
 150                         string s = FileSearch(string(), *it, "lyx");
 151                         if (s.empty()) {
 152                                 last_loaded = newFile(*it, "");
 153                         } else {
 154                                 last_loaded = bufferlist.newBuffer(s, false);
 155                                 last_loaded->error.connect(boost::bind(&LyX::printError, this, _1));
 156                                 if (!loadLyXFile(last_loaded, s)) {
 157                                         bufferlist.release(last_loaded);
 158                                         last_loaded = newFile(*it, string());
 159                                 }
 160                         }
 161                 }
 162
 163                 // try to dispatch to last loaded buffer first
 164                 if (last_loaded) {
 165                         bool success = false;
 166                         if (last_loaded->dispatch(batch_command, &success)) {
 167                                 QuitLyX();
 168                                 exit(!success);
 169                         }
 170                 }
 171                 files.clear(); // the files are already loaded
 172         }
 173
 174         lyx_gui::start(batch_command, files);
 175 }
 176
 177
 178 extern "C" {
 179
 180 static void error_handler(int err_sig)
 181 {
 182         switch (err_sig) {
 183         case SIGHUP:
 184                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 185                 break;
 186         case SIGINT:
 187                 // no comments
 188                 break;
 189         case SIGFPE:
 190                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 191                 break;
 192         case SIGSEGV:
 193                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 194                 lyxerr <<
 195                         "Sorry, you have found a bug in LyX. "
 196                         "Please read the bug-reporting instructions "
 197                         "in Help->Introduction and send us a bug report, "
 198                         "if necessary. Thanks !" << endl;
 199                 break;
 200         case SIGTERM:
 201                 // no comments
 202                 break;
 203         }
 204
 205         // Deinstall the signal handlers
 206         signal(SIGHUP, SIG_DFL);
 207         signal(SIGINT, SIG_DFL);
 208         signal(SIGFPE, SIG_DFL);
 209         signal(SIGSEGV, SIG_DFL);
 210         signal(SIGTERM, SIG_DFL);
 211
 212         LyX::emergencyCleanup();
 213
 214         lyxerr << "Bye." << endl;
 215         if (err_sig!= SIGHUP &&
 216            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 217                 lyx::support::abort();
 218         exit(0);
 219 }
 220
 221 }
 222
 223
 224 void LyX::printError(ErrorItem const & ei)
 225 {
 226         std::cerr << _("LyX: ") << ei.error
 227                   << ':' << ei.description << std::endl;
 228
 229 }
 230
 231
 232 void LyX::init(bool gui)
 233 {
 234         signal(SIGHUP, error_handler);
 235         signal(SIGFPE, error_handler);
 236         signal(SIGSEGV, error_handler);
 237         signal(SIGINT, error_handler);
 238         signal(SIGTERM, error_handler);
 239
 240         //
 241         // Determine path of binary
 242         //
 243
 244         string binpath = os::binpath();
 245         string binname = os::binname();
 246         string fullbinname = MakeAbsPath(binname, binpath);
 247
 248         if (binpath.empty()) {
 249                 lyxerr << _("Warning: could not determine path of binary.")
 250                        << "\n"
 251                        << _("If you have problems, try starting LyX with an absolute path.")
 252                        << endl;
 253         }
 254         lyxerr[Debug::INIT] << "Name of binary: " << binname << endl;
 255         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 256
 257         //
 258         // Determine system directory.
 259         //
 260
 261         // Directories are searched in this order:
 262         // 1) -sysdir command line parameter
 263         // 2) LYX_DIR_14x environment variable
 264         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 265         // 4) <path of binary>/../share/<name of binary>/
 266         // 4a) repeat 4 after following the Symlink if <path of
 267         //     binary> is a symbolic link.
 268         // 5) hardcoded lyx_dir
 269         // The directory is checked for the presence of the file
 270         // "chkconfig.ltx", and if that is present, the directory
 271         // is accepted as the system directory.
 272         // If no chkconfig.ltx file is found, a warning is given,
 273         // and the hardcoded lyx_dir is used.
 274
 275         // If we had a command line switch, system_lyxdir is already set
 276         string searchpath;
 277         if (!system_lyxdir.empty())
 278                 searchpath = MakeAbsPath(system_lyxdir) + ';';
 279
 280         string const lyxdir = GetEnvPath("LYX_DIR_14x");
 281
 282         if (!lyxdir.empty()) {
 283                 lyxerr[Debug::INIT] << "LYX_DIR_14x: " << lyxdir << endl;
 284                 searchpath += lyxdir + ';';
 285         }
 286
 287         string fullbinpath = binpath;
 288         FileInfo file(fullbinname, true);
 289         if (file.isLink()) {
 290                 lyxerr[Debug::INIT] << "binary is a link" << endl;
 291                 string link;
 292                 if (LyXReadLink(fullbinname, link, true)) {
 293                         // Path of binary/../share/name of binary/
 294                         searchpath += NormalizePath(AddPath(binpath,
 295                                                             "../share/")
 296                                                     + OnlyFilename(binname));
 297                         searchpath += ';';
 298                         fullbinpath = link;
 299                         binpath = MakeAbsPath(OnlyPath(fullbinpath));
 300                 }
 301         }
 302
 303         bool followlink;
 304         do {
 305                 // Path of binary/../share/name of binary/
 306                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 307                       OnlyFilename(binname)) + ';';
 308
 309                 // Follow Symlinks
 310                 FileInfo file(fullbinpath, true);
 311                 followlink = file.isLink();
 312                 if (followlink) {
 313                         lyxerr[Debug::INIT] << " directory " << fullbinpath
 314                                             << " is a link" << endl;
 315                         string link;
 316                         if (LyXReadLink(fullbinpath, link, true)) {
 317                                 fullbinpath = link;
 318                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 319                         }
 320                         else {
 321                                 followlink = false;
 322                         }
 323                 }
 324         } while (followlink);
 325
 326         // <path of binary>/TOP_SRCDIR/lib
 327         build_lyxdir = MakeAbsPath("../lib", binpath);
 328         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 329                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 330                                           binpath) + ';';
 331                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 332                         "place... yes" << endl;
 333         } else {
 334                 lyxerr[Debug::INIT]
 335                         << "Checking whether LyX is run in place... no"
 336                         << endl;
 337                 build_lyxdir.erase();
 338         }
 339
 340         // Hardcoded dir
 341         searchpath += LYX_DIR;
 342
 343         lyxerr[Debug::INIT] << "System directory search path: "
 344                             << searchpath << endl;
 345
 346         string const filename = "chkconfig.ltx";
 347         string const temp = FileOpenSearch(searchpath, filename, string());
 348         system_lyxdir = OnlyPath(temp);
 349
 350         // Reduce "path/../path" stuff out of system directory
 351         system_lyxdir = NormalizePath(system_lyxdir);
 352
 353         bool path_shown = false;
 354
 355         // Warn if environment variable is set, but unusable
 356         if (!lyxdir.empty()) {
 357                 if (system_lyxdir != NormalizePath(lyxdir)) {
 358                         lyxerr <<_("LYX_DIR_14x environment variable no good.")
 359                                << '\n'
 360                                << _("System directory set to: ")
 361                                << system_lyxdir << endl;
 362                         path_shown = true;
 363                 }
 364         }
 365
 366         // Warn the user if we couldn't find "chkconfig.ltx"
 367         if (system_lyxdir == "./") {
 368                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 369                        <<_("Try the '-sysdir' command line parameter or ")
 370                        <<_("set the environment variable LYX_DIR_14x to the "
 371                            "LyX system directory ")
 372                        << _("containing the file `chkconfig.ltx'.") << endl;
 373                 if (!path_shown) {
 374                         FileInfo fi(LYX_DIR);
 375                         if (!fi.exist()) {
 376                                 lyxerr << "Couldn't even find the default LYX_DIR." << endl
 377                                         << "Giving up." << endl;
 378                                 exit(1);
 379                         }
 380                         lyxerr << bformat(_("Using built-in default %1$s but expect problems."),
 381                                 LYX_DIR) << endl;
 382                 } else {
 383                         lyxerr << _("Expect problems.") << endl;
 384                 }
 385                 system_lyxdir = LYX_DIR;
 386                 path_shown = true;
 387         }
 388
 389         if (!path_shown)
 390                 lyxerr[Debug::INIT] << "System directory: '"
 391                                     << system_lyxdir << '\'' << endl;
 392
 393         //
 394         // Determine user lyx-dir
 395         //
 396
 397         // Directories are searched in this order:
 398         // 1) -userdir command line parameter
 399         // 2) LYX_USERDIR_14x environment variable
 400         // 3) $HOME/.<name of binary>
 401
 402         // If we had a command line switch, user_lyxdir is already set
 403         bool explicit_userdir = true;
 404         if (user_lyxdir.empty()) {
 405
 406                 // LYX_USERDIR_14x environment variable
 407                 user_lyxdir = GetEnvPath("LYX_USERDIR_14x");
 408
 409                 // default behaviour
 410                 if (user_lyxdir.empty())
 411                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 412                                                         string(".") + PACKAGE);
 413                         explicit_userdir = false;
 414         }
 415
 416         lyxerr[Debug::INIT] << "User LyX directory: '"
 417                             <<  user_lyxdir << '\'' << endl;
 418
 419         // Check that user LyX directory is ok. We don't do that if
 420         // running in batch mode.
 421         if (gui) {
 422                 queryUserLyXDir(explicit_userdir);
 423         } else {
 424                 first_start = false;
 425         }
 426
 427         // Disable gui when easyparse says so
 428         lyx_gui::use_gui = gui;
 429
 430         if (lyxrc.template_path.empty()) {
 431                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 432         }
 433
 434         if (lyxrc.lastfiles.empty()) {
 435                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 436         }
 437
 438         if (lyxrc.roman_font_name.empty())
 439                 lyxrc.roman_font_name = lyx_gui::roman_font_name();
 440         if (lyxrc.sans_font_name.empty())
 441                 lyxrc.sans_font_name = lyx_gui::sans_font_name();
 442         if (lyxrc.typewriter_font_name.empty())
 443                 lyxrc.typewriter_font_name = lyx_gui::typewriter_font_name();
 444
 445         //
 446         // Read configuration files
 447         //
 448
 449         readRcFile("lyxrc.defaults");
 450         system_lyxrc = lyxrc;
 451         system_formats = formats;
 452         system_converters = converters;
 453         system_lcolor = lcolor;
 454
 455         string prefsfile = "preferences";
 456         // back compatibility to lyxs < 1.1.6
 457         if (LibFileSearch(string(), prefsfile).empty())
 458                 prefsfile = "lyxrc";
 459         if (!LibFileSearch(string(), prefsfile).empty())
 460                 readRcFile(prefsfile);
 461
 462         readEncodingsFile("encodings");
 463         readLanguagesFile("languages");
 464
 465         // Load the layouts
 466         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 467         LyXSetStyle();
 468
 469         if (gui) {
 470                 // Set up bindings
 471                 toplevel_keymap.reset(new kb_keymap);
 472                 defaultKeyBindings(toplevel_keymap.get());
 473                 toplevel_keymap->read(lyxrc.bind_file);
 474
 475                 // Read menus
 476                 readUIFile(lyxrc.ui_file);
 477         }
 478
 479         if (lyxerr.debugging(Debug::LYXRC))
 480                 lyxrc.print();
 481
 482         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 483         if (lyxerr.debugging(Debug::INIT)) {
 484                 lyxerr << "LyX tmp dir: `" << os::getTmpDir() << '\'' << endl;
 485         }
 486
 487         lyxerr[Debug::INIT] << "Reading lastfiles `"
 488                             << lyxrc.lastfiles << "'..." << endl;
 489         lastfiles.reset(new LastFiles(lyxrc.lastfiles,
 490                                       lyxrc.check_lastfiles,
 491                                       lyxrc.num_lastfiles));
 492 }
 493
 494
 495 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 496 {
 497         kbmap->bind("Right", LFUN_RIGHT);
 498         kbmap->bind("Left", LFUN_LEFT);
 499         kbmap->bind("Up", LFUN_UP);
 500         kbmap->bind("Down", LFUN_DOWN);
 501
 502         kbmap->bind("Tab", LFUN_CELL_FORWARD);
 503         kbmap->bind("ISO_Left_Tab", LFUN_CELL_FORWARD); // jbl 2001-23-02
 504
 505         kbmap->bind("Home", LFUN_HOME);
 506         kbmap->bind("End", LFUN_END);
 507         kbmap->bind("Prior", LFUN_PRIOR);
 508         kbmap->bind("Next", LFUN_NEXT);
 509
 510         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 511         //kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 512
 513         kbmap->bind("Delete", LFUN_DELETE);
 514         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 515
 516         // sub- and superscript -MV
 517         kbmap->bind("~S-underscore", LFUN_SUBSCRIPT);
 518         kbmap->bind("~S-asciicircum", LFUN_SUPERSCRIPT);
 519
 520         // kbmap->bindings to enable the use of the numeric keypad
 521         // e.g. Num Lock set
 522         //kbmap->bind("KP_0", LFUN_SELFINSERT);
 523         //kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 524         kbmap->bind("KP_Enter", LFUN_BREAKPARAGRAPH);
 525         //kbmap->bind("KP_1", LFUN_SELFINSERT);
 526         //kbmap->bind("KP_2", LFUN_SELFINSERT);
 527         //kbmap->bind("KP_3", LFUN_SELFINSERT);
 528         //kbmap->bind("KP_4", LFUN_SELFINSERT);
 529         //kbmap->bind("KP_5", LFUN_SELFINSERT);
 530         //kbmap->bind("KP_6", LFUN_SELFINSERT);
 531         //kbmap->bind("KP_Add", LFUN_SELFINSERT);
 532         //kbmap->bind("KP_7", LFUN_SELFINSERT);
 533         //kbmap->bind("KP_8", LFUN_SELFINSERT);
 534         //kbmap->bind("KP_9", LFUN_SELFINSERT);
 535         //kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 536         //kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 537         //kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 538         kbmap->bind("KP_Right", LFUN_RIGHT);
 539         kbmap->bind("KP_Left", LFUN_LEFT);
 540         kbmap->bind("KP_Up", LFUN_UP);
 541         kbmap->bind("KP_Down", LFUN_DOWN);
 542         kbmap->bind("KP_Home", LFUN_HOME);
 543         kbmap->bind("KP_End", LFUN_END);
 544         kbmap->bind("KP_Prior", LFUN_PRIOR);
 545         kbmap->bind("KP_Next", LFUN_NEXT);
 546
 547         kbmap->bind("C-Tab", LFUN_CELL_SPLIT);  // ale970515
 548         kbmap->bind("S-Tab", LFUN_CELL_BACKWARD);  // jug20000522
 549         kbmap->bind("S-ISO_Left_Tab", LFUN_CELL_BACKWARD); // jbl 2001-23-02
 550 }
 551
 552
 553 void LyX::emergencyCleanup()
 554 {
 555         // what to do about tmpfiles is non-obvious. we would
 556         // like to delete any we find, but our lyxdir might
 557         // contain documents etc. which might be helpful on
 558         // a crash
 559
 560         bufferlist.emergencyWriteAll();
 561         if (lyxserver)
 562                 lyxserver->emergencyCleanup();
 563 }
 564
 565
 566 void LyX::deadKeyBindings(kb_keymap * kbmap)
 567 {
 568         // bindKeyings for transparent handling of deadkeys
 569         // The keysyms are gotten from XFree86 X11R6
 570         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 571         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 572         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 573         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 574         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 575         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 576         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 577         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 578         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 579         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 580         // nothing with this name
 581         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 582         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 583         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 584         // nothing with this name either...
 585         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 586         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 587         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 588         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 589 }
 590
 591
 592 void LyX::queryUserLyXDir(bool explicit_userdir)
 593 {
 594         string const configure_script = AddName(system_lyxdir, "configure");
 595
 596         // Does user directory exist?
 597         FileInfo fileInfo(user_lyxdir);
 598         if (fileInfo.isOK() && fileInfo.isDir()) {
 599                 first_start = false;
 600                 FileInfo script(configure_script);
 601                 FileInfo defaults(AddName(user_lyxdir, "lyxrc.defaults"));
 602                 if (defaults.isOK() && script.isOK()
 603                     && defaults.getModificationTime() < script.getModificationTime()) {
 604                         lyxerr << _("LyX: reconfiguring user directory")
 605                                << endl;
 606                         Path p(user_lyxdir);
 607                         ::system(configure_script.c_str());
 608                         lyxerr << "LyX: " << _("Done!") << endl;
 609                 }
 610                 return;
 611         }
 612
 613         first_start = !explicit_userdir;
 614
 615         lyxerr << bformat(_("LyX: Creating directory %1$s"
 616                                   " and running configure..."), user_lyxdir) << endl;
 617
 618         if (!createDirectory(user_lyxdir, 0755)) {
 619                 // Failed, let's use $HOME instead.
 620                 user_lyxdir = GetEnvPath("HOME");
 621                 lyxerr << bformat(_("Failed. Will use %1$s instead."),
 622                         user_lyxdir) << endl;
 623                 return;
 624         }
 625
 626         // Run configure in user lyx directory
 627         Path p(user_lyxdir);
 628         ::system(configure_script.c_str());
 629         lyxerr << "LyX: " << _("Done!") << endl;
 630 }
 631
 632
 633 void LyX::readRcFile(string const & name)
 634 {
 635         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 636
 637         string const lyxrc_path = LibFileSearch(string(), name);
 638         if (!lyxrc_path.empty()) {
 639
 640                 lyxerr[Debug::INIT] << "Found " << name
 641                                     << " in " << lyxrc_path << endl;
 642
 643                 if (lyxrc.read(lyxrc_path) >= 0)
 644                         return;
 645         }
 646
 647         showFileError(name);
 648 }
 649
 650
 651 // Read the ui file `name'
 652 void LyX::readUIFile(string const & name)
 653 {
 654         enum Uitags {
 655                 ui_menuset = 1,
 656                 ui_toolbar,
 657                 ui_toolbars,
 658                 ui_include,
 659                 ui_last
 660         };
 661
 662         struct keyword_item uitags[ui_last - 1] = {
 663                 { "include", ui_include },
 664                 { "menuset", ui_menuset },
 665                 { "toolbar", ui_toolbar },
 666                 { "toolbars", ui_toolbars }
 667         };
 668
 669         // Ensure that a file is read only once (prevents include loops)
 670         static std::list<string> uifiles;
 671         std::list<string>::const_iterator it  = uifiles.begin();
 672         std::list<string>::const_iterator end = uifiles.end();
 673         it = std::find(it, end, name);
 674         if (it != end) {
 675                 lyxerr[Debug::INIT] << "UI file '" << name
 676                                     << "' has been read already. "
 677                                     << "Is this an include loop?"
 678                                     << endl;
 679                 return;
 680         }
 681
 682         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 683
 684         string const ui_path = LibFileSearch("ui", name, "ui");
 685
 686         if (ui_path.empty()) {
 687                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 688                 showFileError(name);
 689                 return;
 690         }
 691         uifiles.push_back(name);
 692
 693         lyxerr[Debug::INIT] << "Found " << name
 694                             << " in " << ui_path << endl;
 695         LyXLex lex(uitags, ui_last - 1);
 696         lex.setFile(ui_path);
 697         if (!lex.isOK()) {
 698                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 699                        << endl;
 700         }
 701
 702         if (lyxerr.debugging(Debug::PARSER))
 703                 lex.printTable(lyxerr);
 704
 705         while (lex.isOK()) {
 706                 switch (lex.lex()) {
 707                 case ui_include: {
 708                         lex.next(true);
 709                         string const file = lex.getString();
 710                         readUIFile(file);
 711                         break;
 712                 }
 713                 case ui_menuset:
 714                         menubackend.read(lex);
 715                         break;
 716
 717                 case ui_toolbar:
 718                         toolbarbackend.read(lex);
 719                         break;
 720
 721                 case ui_toolbars:
 722                         toolbarbackend.readToolbars(lex);
 723                         break;
 724
 725                 default:
 726                         if (!rtrim(lex.getString()).empty())
 727                                 lex.printError("LyX::ReadUIFile: "
 728                                                "Unknown menu tag: `$$Token'");
 729                         break;
 730                 }
 731         }
 732 }
 733
 734
 735 // Read the languages file `name'
 736 void LyX::readLanguagesFile(string const & name)
 737 {
 738         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 739
 740         string const lang_path = LibFileSearch(string(), name);
 741         if (lang_path.empty()) {
 742                 showFileError(name);
 743                 return;
 744         }
 745         languages.read(lang_path);
 746 }
 747
 748
 749 // Read the encodings file `name'
 750 void LyX::readEncodingsFile(string const & name)
 751 {
 752         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 753
 754         string const enc_path = LibFileSearch(string(), name);
 755         if (enc_path.empty()) {
 756                 showFileError(name);
 757                 return;
 758         }
 759         encodings.read(enc_path);
 760 }
 761
 762
 763 namespace {
 764
 765 bool is_gui = true;
 766 string batch;
 767
 768 /// return the the number of arguments consumed
 769 typedef boost::function<int(string const &, string const &)> cmd_helper;
 770
 771 int parse_dbg(string const & arg, string const &)
 772 {
 773         if (arg.empty()) {
 774                 lyxerr << _("List of supported debug flags:") << endl;
 775                 Debug::showTags(lyxerr);
 776                 exit(0);
 777         }
 778         lyxerr << bformat(_("Setting debug level to %1$s"), arg) << endl;
 779
 780         lyxerr.level(Debug::value(arg));
 781         Debug::showLevel(lyxerr, lyxerr.level());
 782         return 1;
 783 }
 784
 785
 786 int parse_help(string const &, string const &)
 787 {
 788         lyxerr <<
 789                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 790                   "Command line switches (case sensitive):\n"
 791                   "\t-help              summarize LyX usage\n"
 792                   "\t-userdir dir       try to set user directory to dir\n"
 793                   "\t-sysdir dir        try to set system directory to dir\n"
 794                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 795                   "\t-dbg feature[,feature]...\n"
 796                   "                  select the features to debug.\n"
 797                   "                  Type `lyx -dbg' to see the list of features\n"
 798                   "\t-x [--execute] command\n"
 799                   "                  where command is a lyx command.\n"
 800                   "\t-e [--export] fmt\n"
 801                   "                  where fmt is the export format of choice.\n"
 802                   "\t-i [--import] fmt file.xxx\n"
 803                   "                  where fmt is the import format of choice\n"
 804                   "                  and file.xxx is the file to be imported.\n"
 805                   "\t-version        summarize version and build info\n"
 806                   "Check the LyX man page for more details.") << endl;
 807         exit(0);
 808         return 0;
 809 }
 810
 811 int parse_version(string const &, string const &)
 812 {
 813         lyxerr << "LyX " << lyx_version
 814                << " of " << lyx_release_date << endl;
 815         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 816
 817         lyxerr << lyx_version_info << endl;
 818         exit(0);
 819         return 0;
 820 }
 821
 822 int parse_sysdir(string const & arg, string const &)
 823 {
 824         if (arg.empty()) {
 825                 lyxerr << _("Missing directory for -sysdir switch") << endl;
 826                 exit(1);
 827         }
 828         system_lyxdir = arg;
 829         return 1;
 830 }
 831
 832 int parse_userdir(string const & arg, string const &)
 833 {
 834         if (arg.empty()) {
 835                 lyxerr << _("Missing directory for -userdir switch") << endl;
 836                 exit(1);
 837         }
 838         user_lyxdir = arg;
 839         return 1;
 840 }
 841
 842 int parse_execute(string const & arg, string const &)
 843 {
 844         if (arg.empty()) {
 845                 lyxerr << _("Missing command string after --execute switch") << endl;
 846                 exit(1);
 847         }
 848         batch = arg;
 849         // Argh. Setting gui to false segfaults..
 850         // FIXME: when ? how ?
 851         // is_gui = false;
 852         return 1;
 853 }
 854
 855 int parse_export(string const & type, string const &)
 856 {
 857         if (type.empty()) {
 858                 lyxerr << _("Missing file type [eg latex, ps...] after "
 859                         "--export switch") << endl;
 860                 exit(1);
 861         }
 862         batch = "buffer-export " + type;
 863         is_gui = false;
 864         return 1;
 865 }
 866
 867 int parse_import(string const & type, string const & file)
 868 {
 869         if (type.empty()) {
 870                 lyxerr << _("Missing file type [eg latex, ps...] after "
 871                         "--import switch") << endl;
 872                 exit(1);
 873         }
 874         if (file.empty()) {
 875                 lyxerr << _("Missing filename for --import") << endl;
 876                 exit(1);
 877         }
 878
 879         batch = "buffer-import " + type + ' ' + file;
 880         return 2;
 881 }
 882
 883 } // namespace anon
 884
 885
 886 bool LyX::easyParse(int & argc, char * argv[])
 887 {
 888         std::map<string, cmd_helper> cmdmap;
 889
 890         cmdmap["-dbg"] = parse_dbg;
 891         cmdmap["-help"] = parse_help;
 892         cmdmap["--help"] = parse_help;
 893         cmdmap["-version"] = parse_version;
 894         cmdmap["--version"] = parse_version;
 895         cmdmap["-sysdir"] = parse_sysdir;
 896         cmdmap["-userdir"] = parse_userdir;
 897         cmdmap["-x"] = parse_execute;
 898         cmdmap["--execute"] = parse_execute;
 899         cmdmap["-e"] = parse_export;
 900         cmdmap["--export"] = parse_export;
 901         cmdmap["-i"] = parse_import;
 902         cmdmap["--import"] = parse_import;
 903
 904         for (int i = 1; i < argc; ++i) {
 905                 std::map<string, cmd_helper>::const_iterator it
 906                         = cmdmap.find(argv[i]);
 907
 908                 // don't complain if not found - may be parsed later
 909                 if (it == cmdmap.end())
 910                         continue;
 911
 912                 string arg((i + 1 < argc) ? argv[i + 1] : "");
 913                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
 914
 915                 int const remove = 1 + it->second(arg, arg2);
 916
 917                 // Now, remove used arguments by shifting
 918                 // the following ones remove places down.
 919                 argc -= remove;
 920                 for (int j = i; j < argc; ++j)
 921                         argv[j] = argv[j + remove];
 922                 --i;
 923         }
 924
 925         batch_command = batch;
 926
 927         return is_gui;
 928 }