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$s.\n"
  87                      "Please check your installation."), error));
  88         exit(EXIT_FAILURE);
  89 }
  90
  91 }
  92
  93 LyX::LyX(int & argc, char * argv[])
  94 {
  95         // Here we need to parse the command line. At least
  96         // we need to parse for "-dbg" and "-help"
  97         bool const want_gui = easyParse(argc, argv);
  98
  99         // Global bindings (this must be done as early as possible.) (Lgb)
 100         toplevel_keymap.reset(new kb_keymap);
 101         defaultKeyBindings(toplevel_keymap.get());
 102
 103         // set the DisplayTranslator only once; should that be done here??
 104         // if this should not be in this file, please also remove
 105         // #include "graphics/GraphicsTypes.h" at the top -- Rob Lahaye.
 106         lyx::graphics::setDisplayTranslator();
 107
 108         if (want_gui) {
 109                 lyx_gui::parse_init(argc, argv);
 110         }
 111
 112         // check for any spurious extra arguments
 113         // other than documents
 114         for (int argi = 1; argi < argc ; ++argi) {
 115                 if (argv[argi][0] == '-') {
 116                         lyxerr << bformat(_("Wrong command line option `%1$s'. Exiting."),
 117                                 argv[argi]) << endl;
 118                         exit(1);
 119                 }
 120         }
 121
 122         // Initialization of LyX (reads lyxrc and more)
 123         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 124         init(want_gui);
 125         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 126
 127         if (want_gui) {
 128                 lyx_gui::parse_lyxrc();
 129         }
 130
 131         vector<string> files;
 132
 133         for (int argi = argc - 1; argi >= 1; --argi) {
 134                 files.push_back(argv[argi]);
 135         }
 136
 137         if (first_start)
 138                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 139
 140         // Execute batch commands if available
 141         if (!batch_command.empty()) {
 142
 143                 lyxerr[Debug::INIT] << "About to handle -x '"
 144                        << batch_command << '\'' << endl;
 145
 146                 Buffer * last_loaded = 0;
 147
 148                 vector<string>::const_iterator it = files.begin();
 149                 vector<string>::const_iterator end = files.end();
 150
 151                 for (; it != end; ++it) {
 152                         // get absolute path of file and add ".lyx" to
 153                         // the filename if necessary
 154                         string s = FileSearch(string(), *it, "lyx");
 155                         if (s.empty()) {
 156                                 last_loaded = newFile(*it, "");
 157                         } else {
 158                                 last_loaded = bufferlist.newBuffer(s, false);
 159                                 last_loaded->error.connect(boost::bind(&LyX::printError, this, _1));
 160                                 if (!loadLyXFile(last_loaded, s)) {
 161                                         bufferlist.release(last_loaded);
 162                                         last_loaded = newFile(*it, string());
 163                                 }
 164                         }
 165                 }
 166
 167                 // try to dispatch to last loaded buffer first
 168                 if (last_loaded) {
 169                         bool success = false;
 170                         if (last_loaded->dispatch(batch_command, &success)) {
 171                                 QuitLyX();
 172                                 exit(!success);
 173                         }
 174                 }
 175                 files.clear(); // the files are already loaded
 176         }
 177
 178         lyx_gui::start(batch_command, files);
 179 }
 180
 181
 182 extern "C" {
 183
 184 static void error_handler(int err_sig)
 185 {
 186         switch (err_sig) {
 187         case SIGHUP:
 188                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 189                 break;
 190         case SIGINT:
 191                 // no comments
 192                 break;
 193         case SIGFPE:
 194                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 195                 break;
 196         case SIGSEGV:
 197                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 198                 lyxerr <<
 199                         "Sorry, you have found a bug in LyX. "
 200                         "Please read the bug-reporting instructions "
 201                         "in Help->Introduction and send us a bug report, "
 202                         "if necessary. Thanks !" << endl;
 203                 break;
 204         case SIGTERM:
 205                 // no comments
 206                 break;
 207         }
 208
 209         // Deinstall the signal handlers
 210         signal(SIGHUP, SIG_DFL);
 211         signal(SIGINT, SIG_DFL);
 212         signal(SIGFPE, SIG_DFL);
 213         signal(SIGSEGV, SIG_DFL);
 214         signal(SIGTERM, SIG_DFL);
 215
 216         LyX::emergencyCleanup();
 217
 218         lyxerr << "Bye." << endl;
 219         if (err_sig!= SIGHUP &&
 220            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 221                 lyx::support::abort();
 222         exit(0);
 223 }
 224
 225 }
 226
 227
 228 void LyX::printError(ErrorItem const & ei)
 229 {
 230         std::cerr << _("LyX: ") << ei.error
 231                   << ':' << ei.description << std::endl;
 232
 233 }
 234
 235
 236 void LyX::init(bool gui)
 237 {
 238         signal(SIGHUP, error_handler);
 239         signal(SIGFPE, error_handler);
 240         signal(SIGSEGV, error_handler);
 241         signal(SIGINT, error_handler);
 242         signal(SIGTERM, error_handler);
 243
 244         //
 245         // Determine path of binary
 246         //
 247
 248         string binpath = os::binpath();
 249         string binname = os::binname();
 250         string fullbinname = MakeAbsPath(binname, binpath);
 251
 252         if (binpath.empty()) {
 253                 lyxerr << _("Warning: could not determine path of binary.")
 254                        << "\n"
 255                        << _("If you have problems, try starting LyX with an absolute path.")
 256                        << endl;
 257         }
 258         lyxerr[Debug::INIT] << "Name of binary: " << binname << endl;
 259         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 260
 261         //
 262         // Determine system directory.
 263         //
 264
 265         // Directories are searched in this order:
 266         // 1) -sysdir command line parameter
 267         // 2) LYX_DIR_14x environment variable
 268         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 269         // 4) <path of binary>/../share/<name of binary>/
 270         // 4a) repeat 4 after following the Symlink if <path of
 271         //     binary> is a symbolic link.
 272         // 5) hardcoded lyx_dir
 273         // The directory is checked for the presence of the file
 274         // "chkconfig.ltx", and if that is present, the directory
 275         // is accepted as the system directory.
 276         // If no chkconfig.ltx file is found, a warning is given,
 277         // and the hardcoded lyx_dir is used.
 278
 279         // If we had a command line switch, system_lyxdir is already set
 280         string searchpath;
 281         if (!system_lyxdir.empty())
 282                 searchpath = MakeAbsPath(system_lyxdir) + ';';
 283
 284         string const lyxdir = GetEnvPath("LYX_DIR_14x");
 285
 286         if (!lyxdir.empty()) {
 287                 lyxerr[Debug::INIT] << "LYX_DIR_14x: " << lyxdir << endl;
 288                 searchpath += lyxdir + ';';
 289         }
 290
 291         string fullbinpath = binpath;
 292         FileInfo file(fullbinname, true);
 293         if (file.isLink()) {
 294                 lyxerr[Debug::INIT] << "binary is a link" << endl;
 295                 string link;
 296                 if (LyXReadLink(fullbinname, link, true)) {
 297                         // Path of binary/../share/name of binary/
 298                         searchpath += NormalizePath(AddPath(binpath,
 299                                                             "../share/")
 300                                                     + OnlyFilename(binname));
 301                         searchpath += ';';
 302                         fullbinpath = link;
 303                         binpath = MakeAbsPath(OnlyPath(fullbinpath));
 304                 }
 305         }
 306
 307         bool followlink;
 308         do {
 309                 // Path of binary/../share/name of binary/
 310                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 311                       OnlyFilename(binname)) + ';';
 312
 313                 // Follow Symlinks
 314                 FileInfo file(fullbinpath, true);
 315                 followlink = file.isLink();
 316                 if (followlink) {
 317                         lyxerr[Debug::INIT] << " directory " << fullbinpath
 318                                             << " is a link" << endl;
 319                         string link;
 320                         if (LyXReadLink(fullbinpath, link, true)) {
 321                                 fullbinpath = link;
 322                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 323                         }
 324                         else {
 325                                 followlink = false;
 326                         }
 327                 }
 328         } while (followlink);
 329
 330         // <path of binary>/TOP_SRCDIR/lib
 331         build_lyxdir = MakeAbsPath("../lib", binpath);
 332         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 333                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 334                                           binpath) + ';';
 335                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 336                         "place... yes" << endl;
 337         } else {
 338                 lyxerr[Debug::INIT]
 339                         << "Checking whether LyX is run in place... no"
 340                         << endl;
 341                 build_lyxdir.erase();
 342         }
 343
 344         // Hardcoded dir
 345         searchpath += LYX_DIR;
 346
 347         lyxerr[Debug::INIT] << "System directory search path: "
 348                             << searchpath << endl;
 349
 350         string const filename = "chkconfig.ltx";
 351         string const temp = FileOpenSearch(searchpath, filename, string());
 352         system_lyxdir = OnlyPath(temp);
 353
 354         // Reduce "path/../path" stuff out of system directory
 355         system_lyxdir = NormalizePath(system_lyxdir);
 356
 357         bool path_shown = false;
 358
 359         // Warn if environment variable is set, but unusable
 360         if (!lyxdir.empty()) {
 361                 if (system_lyxdir != NormalizePath(lyxdir)) {
 362                         lyxerr <<_("LYX_DIR_14x environment variable no good.")
 363                                << '\n'
 364                                << _("System directory set to: ")
 365                                << system_lyxdir << endl;
 366                         path_shown = true;
 367                 }
 368         }
 369
 370         // Warn the user if we couldn't find "chkconfig.ltx"
 371         if (system_lyxdir == "./") {
 372                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 373                        <<_("Try the '-sysdir' command line parameter or ")
 374                        <<_("set the environment variable LYX_DIR_14x to the "
 375                            "LyX system directory ")
 376                        << _("containing the file `chkconfig.ltx'.") << endl;
 377                 if (!path_shown) {
 378                         FileInfo fi(LYX_DIR);
 379                         if (!fi.exist()) {
 380                                 lyxerr << "Couldn't even find the default LYX_DIR." << endl
 381                                         << "Giving up." << endl;
 382                                 exit(1);
 383                         }
 384                         lyxerr << bformat(_("Using built-in default %1$s but expect problems."),
 385                                 LYX_DIR) << endl;
 386                 } else {
 387                         lyxerr << _("Expect problems.") << endl;
 388                 }
 389                 system_lyxdir = LYX_DIR;
 390                 path_shown = true;
 391         }
 392
 393         if (!path_shown)
 394                 lyxerr[Debug::INIT] << "System directory: '"
 395                                     << system_lyxdir << '\'' << endl;
 396
 397         //
 398         // Determine user lyx-dir
 399         //
 400
 401         // Directories are searched in this order:
 402         // 1) -userdir command line parameter
 403         // 2) LYX_USERDIR_14x environment variable
 404         // 3) $HOME/.<name of binary>
 405
 406         // If we had a command line switch, user_lyxdir is already set
 407         bool explicit_userdir = true;
 408         if (user_lyxdir.empty()) {
 409
 410                 // LYX_USERDIR_14x environment variable
 411                 user_lyxdir = GetEnvPath("LYX_USERDIR_14x");
 412
 413                 // default behaviour
 414                 if (user_lyxdir.empty())
 415                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 416                                                         string(".") + PACKAGE);
 417                         explicit_userdir = false;
 418         }
 419
 420         lyxerr[Debug::INIT] << "User LyX directory: '"
 421                             <<  user_lyxdir << '\'' << endl;
 422
 423         // Check that user LyX directory is ok. We don't do that if
 424         // running in batch mode.
 425         if (gui) {
 426                 queryUserLyXDir(explicit_userdir);
 427         } else {
 428                 first_start = false;
 429         }
 430
 431         // Disable gui when easyparse says so
 432         lyx_gui::use_gui = gui;
 433
 434         if (lyxrc.template_path.empty()) {
 435                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 436         }
 437
 438         if (lyxrc.lastfiles.empty()) {
 439                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 440         }
 441
 442         if (lyxrc.roman_font_name.empty())
 443                 lyxrc.roman_font_name = lyx_gui::roman_font_name();
 444         if (lyxrc.sans_font_name.empty())
 445                 lyxrc.sans_font_name = lyx_gui::sans_font_name();
 446         if (lyxrc.typewriter_font_name.empty())
 447                 lyxrc.typewriter_font_name = lyx_gui::typewriter_font_name();
 448
 449         //
 450         // Read configuration files
 451         //
 452
 453         readRcFile("lyxrc.defaults");
 454         system_lyxrc = lyxrc;
 455         system_formats = formats;
 456         system_converters = converters;
 457         system_lcolor = lcolor;
 458
 459         string prefsfile = "preferences";
 460         // back compatibility to lyxs < 1.1.6
 461         if (LibFileSearch(string(), prefsfile).empty())
 462                 prefsfile = "lyxrc";
 463         if (!LibFileSearch(string(), prefsfile).empty())
 464                 readRcFile(prefsfile);
 465
 466         readEncodingsFile("encodings");
 467         readLanguagesFile("languages");
 468
 469         // Load the layouts
 470         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 471         LyXSetStyle();
 472
 473         // Ensure that we have really read a bind file, so that LyX is
 474         // usable.
 475         lyxrc.readBindFileIfNeeded();
 476
 477         // Read menus
 478         readUIFile(lyxrc.ui_file);
 479
 480         if (lyxerr.debugging(Debug::LYXRC))
 481                 lyxrc.print();
 482
 483         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 484         if (lyxerr.debugging(Debug::INIT)) {
 485                 lyxerr << "LyX tmp dir: `" << os::getTmpDir() << '\'' << endl;
 486         }
 487
 488         lyxerr[Debug::INIT] << "Reading lastfiles `"
 489                             << lyxrc.lastfiles << "'..." << endl;
 490         lastfiles.reset(new LastFiles(lyxrc.lastfiles,
 491                                       lyxrc.check_lastfiles,
 492                                       lyxrc.num_lastfiles));
 493 }
 494
 495
 496 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 497 {
 498         kbmap->bind("Right", LFUN_RIGHT);
 499         kbmap->bind("Left", LFUN_LEFT);
 500         kbmap->bind("Up", LFUN_UP);
 501         kbmap->bind("Down", LFUN_DOWN);
 502
 503         kbmap->bind("Tab", LFUN_CELL_FORWARD);
 504         kbmap->bind("ISO_Left_Tab", LFUN_CELL_FORWARD); // jbl 2001-23-02
 505
 506         kbmap->bind("Home", LFUN_HOME);
 507         kbmap->bind("End", LFUN_END);
 508         kbmap->bind("Prior", LFUN_PRIOR);
 509         kbmap->bind("Next", LFUN_NEXT);
 510
 511         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 512         //kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 513
 514         kbmap->bind("Delete", LFUN_DELETE);
 515         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 516
 517         // sub- and superscript -MV
 518         kbmap->bind("~S-underscore", LFUN_SUBSCRIPT);
 519         kbmap->bind("~S-asciicircum", LFUN_SUPERSCRIPT);
 520
 521         // kbmap->bindings to enable the use of the numeric keypad
 522         // e.g. Num Lock set
 523         //kbmap->bind("KP_0", LFUN_SELFINSERT);
 524         //kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 525         kbmap->bind("KP_Enter", LFUN_BREAKPARAGRAPH);
 526         //kbmap->bind("KP_1", LFUN_SELFINSERT);
 527         //kbmap->bind("KP_2", LFUN_SELFINSERT);
 528         //kbmap->bind("KP_3", LFUN_SELFINSERT);
 529         //kbmap->bind("KP_4", LFUN_SELFINSERT);
 530         //kbmap->bind("KP_5", LFUN_SELFINSERT);
 531         //kbmap->bind("KP_6", LFUN_SELFINSERT);
 532         //kbmap->bind("KP_Add", LFUN_SELFINSERT);
 533         //kbmap->bind("KP_7", LFUN_SELFINSERT);
 534         //kbmap->bind("KP_8", LFUN_SELFINSERT);
 535         //kbmap->bind("KP_9", LFUN_SELFINSERT);
 536         //kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 537         //kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 538         //kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 539         kbmap->bind("KP_Right", LFUN_RIGHT);
 540         kbmap->bind("KP_Left", LFUN_LEFT);
 541         kbmap->bind("KP_Up", LFUN_UP);
 542         kbmap->bind("KP_Down", LFUN_DOWN);
 543         kbmap->bind("KP_Home", LFUN_HOME);
 544         kbmap->bind("KP_End", LFUN_END);
 545         kbmap->bind("KP_Prior", LFUN_PRIOR);
 546         kbmap->bind("KP_Next", LFUN_NEXT);
 547
 548         kbmap->bind("C-Tab", LFUN_CELL_SPLIT);  // ale970515
 549         kbmap->bind("S-Tab", LFUN_CELL_BACKWARD);  // jug20000522
 550         kbmap->bind("S-ISO_Left_Tab", LFUN_CELL_BACKWARD); // jbl 2001-23-02
 551 }
 552
 553
 554 void LyX::emergencyCleanup()
 555 {
 556         // what to do about tmpfiles is non-obvious. we would
 557         // like to delete any we find, but our lyxdir might
 558         // contain documents etc. which might be helpful on
 559         // a crash
 560
 561         bufferlist.emergencyWriteAll();
 562         if (lyxserver)
 563                 lyxserver->emergencyCleanup();
 564 }
 565
 566
 567 void LyX::deadKeyBindings(kb_keymap * kbmap)
 568 {
 569         // bindKeyings for transparent handling of deadkeys
 570         // The keysyms are gotten from XFree86 X11R6
 571         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 572         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 573         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 574         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 575         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 576         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 577         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 578         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 579         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 580         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 581         // nothing with this name
 582         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 583         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 584         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 585         // nothing with this name either...
 586         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 587         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 588         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 589         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 590 }
 591
 592
 593 void LyX::queryUserLyXDir(bool explicit_userdir)
 594 {
 595         string const configure_script = AddName(system_lyxdir, "configure");
 596
 597         // Does user directory exist?
 598         FileInfo fileInfo(user_lyxdir);
 599         if (fileInfo.isOK() && fileInfo.isDir()) {
 600                 first_start = false;
 601                 FileInfo script(configure_script);
 602                 FileInfo defaults(AddName(user_lyxdir, "lyxrc.defaults"));
 603                 if (defaults.isOK() && script.isOK()
 604                     && defaults.getModificationTime() < script.getModificationTime()) {
 605                         lyxerr << _("LyX: reconfiguring user directory")
 606                                << endl;
 607                         Path p(user_lyxdir);
 608                         ::system(configure_script.c_str());
 609                         lyxerr << "LyX: " << _("Done!") << endl;
 610                 }
 611                 return;
 612         }
 613
 614         first_start = !explicit_userdir;
 615
 616         lyxerr << bformat(_("LyX: Creating directory %1$s"
 617                                   " and running configure..."), user_lyxdir) << endl;
 618
 619         if (!createDirectory(user_lyxdir, 0755)) {
 620                 // Failed, let's use $HOME instead.
 621                 user_lyxdir = GetEnvPath("HOME");
 622                 lyxerr << bformat(_("Failed. Will use %1$s instead."),
 623                         user_lyxdir) << endl;
 624                 return;
 625         }
 626
 627         // Run configure in user lyx directory
 628         Path p(user_lyxdir);
 629         ::system(configure_script.c_str());
 630         lyxerr << "LyX: " << _("Done!") << endl;
 631 }
 632
 633
 634 void LyX::readRcFile(string const & name)
 635 {
 636         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 637
 638         string const lyxrc_path = LibFileSearch(string(), name);
 639         if (!lyxrc_path.empty()) {
 640
 641                 lyxerr[Debug::INIT] << "Found " << name
 642                                     << " in " << lyxrc_path << endl;
 643
 644                 if (lyxrc.read(lyxrc_path) >= 0)
 645                         return;
 646         }
 647
 648         showFileError(name);
 649 }
 650
 651
 652 // Read the ui file `name'
 653 void LyX::readUIFile(string const & name)
 654 {
 655         enum Uitags {
 656                 ui_menuset = 1,
 657                 ui_toolbar,
 658                 ui_toolbars,
 659                 ui_include,
 660                 ui_last
 661         };
 662
 663         struct keyword_item uitags[ui_last - 1] = {
 664                 { "include", ui_include },
 665                 { "menuset", ui_menuset },
 666                 { "toolbar", ui_toolbar },
 667                 { "toolbars", ui_toolbars }
 668         };
 669
 670         // Ensure that a file is read only once (prevents include loops)
 671         static std::list<string> uifiles;
 672         std::list<string>::const_iterator it  = uifiles.begin();
 673         std::list<string>::const_iterator end = uifiles.end();
 674         it = std::find(it, end, name);
 675         if (it != end) {
 676                 lyxerr[Debug::INIT] << "UI file '" << name
 677                                     << "' has been read already. "
 678                                     << "Is this an include loop?"
 679                                     << endl;
 680                 return;
 681         }
 682
 683         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 684
 685         string const ui_path = LibFileSearch("ui", name, "ui");
 686
 687         if (ui_path.empty()) {
 688                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 689                 showFileError(name);
 690                 return;
 691         }
 692         uifiles.push_back(name);
 693
 694         lyxerr[Debug::INIT] << "Found " << name
 695                             << " in " << ui_path << endl;
 696         LyXLex lex(uitags, ui_last - 1);
 697         lex.setFile(ui_path);
 698         if (!lex.isOK()) {
 699                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 700                        << endl;
 701         }
 702
 703         if (lyxerr.debugging(Debug::PARSER))
 704                 lex.printTable(lyxerr);
 705
 706         while (lex.isOK()) {
 707                 switch (lex.lex()) {
 708                 case ui_include: {
 709                         lex.next(true);
 710                         string const file = lex.getString();
 711                         readUIFile(file);
 712                         break;
 713                 }
 714                 case ui_menuset:
 715                         menubackend.read(lex);
 716                         break;
 717
 718                 case ui_toolbar:
 719                         toolbarbackend.read(lex);
 720                         break;
 721
 722                 case ui_toolbars:
 723                         toolbarbackend.readToolbars(lex);
 724                         break;
 725
 726                 default:
 727                         if (!rtrim(lex.getString()).empty())
 728                                 lex.printError("LyX::ReadUIFile: "
 729                                                "Unknown menu tag: `$$Token'");
 730                         break;
 731                 }
 732         }
 733 }
 734
 735
 736 // Read the languages file `name'
 737 void LyX::readLanguagesFile(string const & name)
 738 {
 739         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 740
 741         string const lang_path = LibFileSearch(string(), name);
 742         if (lang_path.empty()) {
 743                 showFileError(name);
 744                 return;
 745         }
 746         languages.read(lang_path);
 747 }
 748
 749
 750 // Read the encodings file `name'
 751 void LyX::readEncodingsFile(string const & name)
 752 {
 753         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 754
 755         string const enc_path = LibFileSearch(string(), name);
 756         if (enc_path.empty()) {
 757                 showFileError(name);
 758                 return;
 759         }
 760         encodings.read(enc_path);
 761 }
 762
 763
 764 namespace {
 765
 766 bool is_gui = true;
 767 string batch;
 768
 769 /// return the the number of arguments consumed
 770 typedef boost::function<int(string const &, string const &)> cmd_helper;
 771
 772 int parse_dbg(string const & arg, string const &)
 773 {
 774         if (arg.empty()) {
 775                 lyxerr << _("List of supported debug flags:") << endl;
 776                 Debug::showTags(lyxerr);
 777                 exit(0);
 778         }
 779         lyxerr << bformat(_("Setting debug level to %1$s"), arg) << endl;
 780
 781         lyxerr.level(Debug::value(arg));
 782         Debug::showLevel(lyxerr, lyxerr.level());
 783         return 1;
 784 }
 785
 786
 787 int parse_help(string const &, string const &)
 788 {
 789         lyxerr <<
 790                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 791                   "Command line switches (case sensitive):\n"
 792                   "\t-help              summarize LyX usage\n"
 793                   "\t-userdir dir       try to set user directory to dir\n"
 794                   "\t-sysdir dir        try to set system directory to dir\n"
 795                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 796                   "\t-dbg feature[,feature]...\n"
 797                   "                  select the features to debug.\n"
 798                   "                  Type `lyx -dbg' to see the list of features\n"
 799                   "\t-x [--execute] command\n"
 800                   "                  where command is a lyx command.\n"
 801                   "\t-e [--export] fmt\n"
 802                   "                  where fmt is the export format of choice.\n"
 803                   "\t-i [--import] fmt file.xxx\n"
 804                   "                  where fmt is the import format of choice\n"
 805                   "                  and file.xxx is the file to be imported.\n"
 806                   "\t-version        summarize version and build info\n"
 807                   "Check the LyX man page for more details.") << endl;
 808         exit(0);
 809         return 0;
 810 }
 811
 812 int parse_version(string const &, string const &)
 813 {
 814         lyxerr << "LyX " << lyx_version
 815                << " of " << lyx_release_date << endl;
 816         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 817
 818         lyxerr << lyx_version_info << endl;
 819         exit(0);
 820         return 0;
 821 }
 822
 823 int parse_sysdir(string const & arg, string const &)
 824 {
 825         if (arg.empty()) {
 826                 lyxerr << _("Missing directory for -sysdir switch") << endl;
 827                 exit(1);
 828         }
 829         system_lyxdir = arg;
 830         return 1;
 831 }
 832
 833 int parse_userdir(string const & arg, string const &)
 834 {
 835         if (arg.empty()) {
 836                 lyxerr << _("Missing directory for -userdir switch") << endl;
 837                 exit(1);
 838         }
 839         user_lyxdir = arg;
 840         return 1;
 841 }
 842
 843 int parse_execute(string const & arg, string const &)
 844 {
 845         if (arg.empty()) {
 846                 lyxerr << _("Missing command string after --execute switch") << endl;
 847                 exit(1);
 848         }
 849         batch = arg;
 850         // Argh. Setting gui to false segfaults..
 851         // FIXME: when ? how ?
 852         // is_gui = false;
 853         return 1;
 854 }
 855
 856 int parse_export(string const & type, string const &)
 857 {
 858         if (type.empty()) {
 859                 lyxerr << _("Missing file type [eg latex, ps...] after "
 860                         "--export switch") << endl;
 861                 exit(1);
 862         }
 863         batch = "buffer-export " + type;
 864         is_gui = false;
 865         return 1;
 866 }
 867
 868 int parse_import(string const & type, string const & file)
 869 {
 870         if (type.empty()) {
 871                 lyxerr << _("Missing file type [eg latex, ps...] after "
 872                         "--import switch") << endl;
 873                 exit(1);
 874         }
 875         if (file.empty()) {
 876                 lyxerr << _("Missing filename for --import") << endl;
 877                 exit(1);
 878         }
 879
 880         batch = "buffer-import " + type + ' ' + file;
 881         return 2;
 882 }
 883
 884 } // namespace anon
 885
 886
 887 bool LyX::easyParse(int & argc, char * argv[])
 888 {
 889         std::map<string, cmd_helper> cmdmap;
 890
 891         cmdmap["-dbg"] = parse_dbg;
 892         cmdmap["-help"] = parse_help;
 893         cmdmap["--help"] = parse_help;
 894         cmdmap["-version"] = parse_version;
 895         cmdmap["--version"] = parse_version;
 896         cmdmap["-sysdir"] = parse_sysdir;
 897         cmdmap["-userdir"] = parse_userdir;
 898         cmdmap["-x"] = parse_execute;
 899         cmdmap["--execute"] = parse_execute;
 900         cmdmap["-e"] = parse_export;
 901         cmdmap["--export"] = parse_export;
 902         cmdmap["-i"] = parse_import;
 903         cmdmap["--import"] = parse_import;
 904
 905         for (int i = 1; i < argc; ++i) {
 906                 std::map<string, cmd_helper>::const_iterator it
 907                         = cmdmap.find(argv[i]);
 908
 909                 // don't complain if not found - may be parsed later
 910                 if (it == cmdmap.end())
 911                         continue;
 912
 913                 string arg((i + 1 < argc) ? argv[i + 1] : "");
 914                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
 915
 916                 int const remove = 1 + it->second(arg, arg2);
 917
 918                 // Now, remove used arguments by shifting
 919                 // the following ones remove places down.
 920                 argc -= remove;
 921                 for (int j = i; j < argc; ++j)
 922                         argv[j] = argv[j + remove];
 923                 --i;
 924         }
 925
 926         batch_command = batch;
 927
 928         return is_gui;
 929 }