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 namespace grfx = lyx::graphics;
  63
  64 extern void LoadLyXFile(string const &);
  65 extern void QuitLyX();
  66
  67 extern LyXServer * lyxserver;
  68
  69 string system_lyxdir;
  70 string build_lyxdir;
  71 string system_tempdir;
  72 string user_lyxdir;
  73
  74 DebugStream lyxerr;
  75
  76 boost::scoped_ptr<LastFiles> lastfiles;
  77
  78 // This is the global bufferlist object
  79 BufferList bufferlist;
  80
  81 // convenient to have it here.
  82 boost::scoped_ptr<kb_keymap> toplevel_keymap;
  83
  84 namespace {
  85
  86 void showFileError(string const & error)
  87 {
  88         Alert::warning(_("Could not read configuration file"),
  89                    bformat(_("Error while reading the configuration file\n%1$s.\n"
  90                      "Please check your installation."), error));
  91         exit(EXIT_FAILURE);
  92 }
  93
  94 }
  95
  96 LyX::LyX(int & argc, char * argv[])
  97 {
  98         // Here we need to parse the command line. At least
  99         // we need to parse for "-dbg" and "-help"
 100         bool const want_gui = easyParse(argc, argv);
 101
 102         // Global bindings (this must be done as early as possible.) (Lgb)
 103         toplevel_keymap.reset(new kb_keymap);
 104         defaultKeyBindings(toplevel_keymap.get());
 105
 106         // set the DisplayTranslator only once; should that be done here??
 107         // if this should not be in this file, please also remove
 108         // #include "graphics/GraphicsTypes.h" at the top -- Rob Lahaye.
 109         grfx::setDisplayTranslator();
 110
 111         if (want_gui) {
 112                 lyx_gui::parse_init(argc, argv);
 113         }
 114
 115         // check for any spurious extra arguments
 116         // other than documents
 117         for (int argi = 1; argi < argc ; ++argi) {
 118                 if (argv[argi][0] == '-') {
 119                         lyxerr << bformat(_("Wrong command line option `%1$s'. Exiting."),
 120                                 argv[argi]) << endl;
 121                         exit(1);
 122                 }
 123         }
 124
 125         // Initialization of LyX (reads lyxrc and more)
 126         lyxerr[Debug::INIT] << "Initializing LyX::init..." << endl;
 127         init(want_gui);
 128         lyxerr[Debug::INIT] << "Initializing LyX::init...done" << endl;
 129
 130         if (want_gui) {
 131                 lyx_gui::parse_lyxrc();
 132         }
 133
 134         vector<string> files;
 135
 136         for (int argi = argc - 1; argi >= 1; --argi) {
 137                 files.push_back(argv[argi]);
 138         }
 139
 140         if (first_start)
 141                 files.push_back(i18nLibFileSearch("examples", "splash.lyx"));
 142
 143         // Execute batch commands if available
 144         if (!batch_command.empty()) {
 145
 146                 lyxerr[Debug::INIT] << "About to handle -x '"
 147                        << batch_command << '\'' << endl;
 148
 149                 Buffer * last_loaded = 0;
 150
 151                 vector<string>::const_iterator it = files.begin();
 152                 vector<string>::const_iterator end = files.end();
 153
 154                 for (; it != end; ++it) {
 155                         // get absolute path of file and add ".lyx" to
 156                         // the filename if necessary
 157                         string s = FileSearch(string(), *it, "lyx");
 158                         if (s.empty()) {
 159                                 last_loaded = newFile(*it, "");
 160                         } else {
 161                                 last_loaded = bufferlist.newBuffer(s, false);
 162                                 last_loaded->error.connect(boost::bind(&LyX::printError, this, _1));
 163                                 if (!loadLyXFile(last_loaded, s)) {
 164                                         bufferlist.release(last_loaded);
 165                                         last_loaded = newFile(*it, string());
 166                                 }
 167                         }
 168                 }
 169
 170                 bool success = false;
 171
 172                 // try to dispatch to last loaded buffer first
 173                 if (last_loaded)
 174                         last_loaded->dispatch(batch_command, &success);
 175                 else
 176                         lyxerr << _("Batch command specified but no "
 177                                     "file loaded. Exiting.") << endl;
 178
 179                 QuitLyX();
 180                 exit(!success);
 181         }
 182
 183         lyx_gui::start(batch_command, files);
 184 }
 185
 186
 187 extern "C" {
 188
 189 static void error_handler(int err_sig)
 190 {
 191         switch (err_sig) {
 192         case SIGHUP:
 193                 lyxerr << "\nlyx: SIGHUP signal caught" << endl;
 194                 break;
 195         case SIGINT:
 196                 // no comments
 197                 break;
 198         case SIGFPE:
 199                 lyxerr << "\nlyx: SIGFPE signal caught" << endl;
 200                 break;
 201         case SIGSEGV:
 202                 lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
 203                 lyxerr <<
 204                         "Sorry, you have found a bug in LyX. "
 205                         "Please read the bug-reporting instructions "
 206                         "in Help->Introduction and send us a bug report, "
 207                         "if necessary. Thanks !" << endl;
 208                 break;
 209         case SIGTERM:
 210                 // no comments
 211                 break;
 212         }
 213
 214         // Deinstall the signal handlers
 215         signal(SIGHUP, SIG_DFL);
 216         signal(SIGINT, SIG_DFL);
 217         signal(SIGFPE, SIG_DFL);
 218         signal(SIGSEGV, SIG_DFL);
 219         signal(SIGTERM, SIG_DFL);
 220
 221         LyX::emergencyCleanup();
 222
 223         lyxerr << "Bye." << endl;
 224         if (err_sig!= SIGHUP &&
 225            (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
 226                 lyx::support::abort();
 227         exit(0);
 228 }
 229
 230 }
 231
 232
 233 void LyX::printError(ErrorItem const & ei)
 234 {
 235         std::cerr << _("LyX: ") << ei.error
 236                   << ':' << ei.description << std::endl;
 237
 238 }
 239
 240
 241 void LyX::init(bool gui)
 242 {
 243         signal(SIGHUP, error_handler);
 244         signal(SIGFPE, error_handler);
 245         signal(SIGSEGV, error_handler);
 246         signal(SIGINT, error_handler);
 247         signal(SIGTERM, error_handler);
 248
 249         //
 250         // Determine path of binary
 251         //
 252
 253         string binpath = os::binpath();
 254         string binname = os::binname();
 255         string fullbinname = MakeAbsPath(binname, binpath);
 256
 257         if (binpath.empty()) {
 258                 lyxerr << _("Warning: could not determine path of binary.")
 259                        << "\n"
 260                        << _("If you have problems, try starting LyX with an absolute path.")
 261                        << endl;
 262         }
 263         lyxerr[Debug::INIT] << "Name of binary: " << binname << endl;
 264         lyxerr[Debug::INIT] << "Path of binary: " << binpath << endl;
 265
 266         //
 267         // Determine system directory.
 268         //
 269
 270         // Directories are searched in this order:
 271         // 1) -sysdir command line parameter
 272         // 2) LYX_DIR_14x environment variable
 273         // 3) Maybe <path of binary>/TOP_SRCDIR/lib
 274         // 4) <path of binary>/../share/<name of binary>/
 275         // 4a) repeat 4 after following the Symlink if <path of
 276         //     binary> is a symbolic link.
 277         // 5) hardcoded lyx_dir
 278         // The directory is checked for the presence of the file
 279         // "chkconfig.ltx", and if that is present, the directory
 280         // is accepted as the system directory.
 281         // If no chkconfig.ltx file is found, a warning is given,
 282         // and the hardcoded lyx_dir is used.
 283
 284         // If we had a command line switch, system_lyxdir is already set
 285         string searchpath;
 286         if (!system_lyxdir.empty())
 287                 searchpath = MakeAbsPath(system_lyxdir) + ';';
 288
 289         string const lyxdir = GetEnvPath("LYX_DIR_14x");
 290
 291         if (!lyxdir.empty()) {
 292                 lyxerr[Debug::INIT] << "LYX_DIR_14x: " << lyxdir << endl;
 293                 searchpath += lyxdir + ';';
 294         }
 295
 296         string fullbinpath = binpath;
 297         FileInfo file(fullbinname, true);
 298         if (file.isLink()) {
 299                 lyxerr[Debug::INIT] << "binary is a link" << endl;
 300                 string link;
 301                 if (LyXReadLink(fullbinname, link, true)) {
 302                         // Path of binary/../share/name of binary/
 303                         searchpath += NormalizePath(AddPath(binpath,
 304                                                             "../share/")
 305                                                     + OnlyFilename(binname));
 306                         searchpath += ';';
 307                         fullbinpath = link;
 308                         binpath = MakeAbsPath(OnlyPath(fullbinpath));
 309                 }
 310         }
 311
 312         bool followlink;
 313         do {
 314                 // Path of binary/../share/name of binary/
 315                 searchpath += NormalizePath(AddPath(binpath, "../share/") +
 316                       OnlyFilename(binname)) + ';';
 317
 318                 // Follow Symlinks
 319                 FileInfo file(fullbinpath, true);
 320                 followlink = file.isLink();
 321                 if (followlink) {
 322                         lyxerr[Debug::INIT] << " directory " << fullbinpath
 323                                             << " is a link" << endl;
 324                         string link;
 325                         if (LyXReadLink(fullbinpath, link, true)) {
 326                                 fullbinpath = link;
 327                                 binpath = MakeAbsPath(OnlyPath(fullbinpath));
 328                         }
 329                         else {
 330                                 followlink = false;
 331                         }
 332                 }
 333         } while (followlink);
 334
 335         // <path of binary>/TOP_SRCDIR/lib
 336         build_lyxdir = MakeAbsPath("../lib", binpath);
 337         if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
 338                 searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
 339                                           binpath) + ';';
 340                 lyxerr[Debug::INIT] << "Checking whether LyX is run in "
 341                         "place... yes" << endl;
 342         } else {
 343                 lyxerr[Debug::INIT]
 344                         << "Checking whether LyX is run in place... no"
 345                         << endl;
 346                 build_lyxdir.erase();
 347         }
 348
 349         // Hardcoded dir
 350         searchpath += LYX_DIR;
 351
 352         lyxerr[Debug::INIT] << "System directory search path: "
 353                             << searchpath << endl;
 354
 355         string const filename = "chkconfig.ltx";
 356         string const temp = FileOpenSearch(searchpath, filename, string());
 357         system_lyxdir = OnlyPath(temp);
 358
 359         // Reduce "path/../path" stuff out of system directory
 360         system_lyxdir = NormalizePath(system_lyxdir);
 361
 362         bool path_shown = false;
 363
 364         // Warn if environment variable is set, but unusable
 365         if (!lyxdir.empty()) {
 366                 if (system_lyxdir != NormalizePath(lyxdir)) {
 367                         lyxerr <<_("LYX_DIR_14x environment variable no good.")
 368                                << '\n'
 369                                << _("System directory set to: ")
 370                                << system_lyxdir << endl;
 371                         path_shown = true;
 372                 }
 373         }
 374
 375         // Warn the user if we couldn't find "chkconfig.ltx"
 376         if (system_lyxdir == "./") {
 377                 lyxerr <<_("LyX Warning! Couldn't determine system directory. ")
 378                        <<_("Try the '-sysdir' command line parameter or ")
 379                        <<_("set the environment variable LYX_DIR_14x to the "
 380                            "LyX system directory ")
 381                        << _("containing the file `chkconfig.ltx'.") << endl;
 382                 if (!path_shown) {
 383                         FileInfo fi(LYX_DIR);
 384                         if (!fi.exist()) {
 385                                 lyxerr << "Couldn't even find the default LYX_DIR." << endl
 386                                         << "Giving up." << endl;
 387                                 exit(1);
 388                         }
 389                         lyxerr << bformat(_("Using built-in default %1$s but expect problems."),
 390                                 LYX_DIR) << endl;
 391                 } else {
 392                         lyxerr << _("Expect problems.") << endl;
 393                 }
 394                 system_lyxdir = LYX_DIR;
 395                 path_shown = true;
 396         }
 397
 398         if (!path_shown)
 399                 lyxerr[Debug::INIT] << "System directory: '"
 400                                     << system_lyxdir << '\'' << endl;
 401
 402         //
 403         // Determine user lyx-dir
 404         //
 405
 406         // Directories are searched in this order:
 407         // 1) -userdir command line parameter
 408         // 2) LYX_USERDIR_14x environment variable
 409         // 3) $HOME/.<name of binary>
 410
 411         // If we had a command line switch, user_lyxdir is already set
 412         bool explicit_userdir = true;
 413         if (user_lyxdir.empty()) {
 414
 415                 // LYX_USERDIR_14x environment variable
 416                 user_lyxdir = GetEnvPath("LYX_USERDIR_14x");
 417
 418                 // default behaviour
 419                 if (user_lyxdir.empty())
 420                         user_lyxdir = AddPath(GetEnvPath("HOME"),
 421                                                         string(".") + PACKAGE);
 422                         explicit_userdir = false;
 423         }
 424
 425         lyxerr[Debug::INIT] << "User LyX directory: '"
 426                             <<  user_lyxdir << '\'' << endl;
 427
 428         // Check that user LyX directory is ok. We don't do that if
 429         // running in batch mode.
 430         if (gui) {
 431                 queryUserLyXDir(explicit_userdir);
 432         } else {
 433                 first_start = false;
 434         }
 435
 436         // Disable gui when easyparse says so
 437         lyx_gui::use_gui = gui;
 438
 439         if (lyxrc.template_path.empty()) {
 440                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 441         }
 442
 443         if (lyxrc.lastfiles.empty()) {
 444                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 445         }
 446
 447         if (lyxrc.roman_font_name.empty())
 448                 lyxrc.roman_font_name = lyx_gui::roman_font_name();
 449         if (lyxrc.sans_font_name.empty())
 450                 lyxrc.sans_font_name = lyx_gui::sans_font_name();
 451         if (lyxrc.typewriter_font_name.empty())
 452                 lyxrc.typewriter_font_name = lyx_gui::typewriter_font_name();
 453
 454         //
 455         // Read configuration files
 456         //
 457
 458         readRcFile("lyxrc.defaults");
 459         system_lyxrc = lyxrc;
 460         system_formats = formats;
 461         system_converters = converters;
 462         system_lcolor = lcolor;
 463
 464         string prefsfile = "preferences";
 465         // back compatibility to lyxs < 1.1.6
 466         if (LibFileSearch(string(), prefsfile).empty())
 467                 prefsfile = "lyxrc";
 468         if (!LibFileSearch(string(), prefsfile).empty())
 469                 readRcFile(prefsfile);
 470
 471         readEncodingsFile("encodings");
 472         readLanguagesFile("languages");
 473
 474         // Load the layouts
 475         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 476         LyXSetStyle();
 477
 478         // Ensure that we have really read a bind file, so that LyX is
 479         // usable.
 480         lyxrc.readBindFileIfNeeded();
 481
 482         // Read menus
 483         readUIFile(lyxrc.ui_file);
 484
 485         if (lyxerr.debugging(Debug::LYXRC))
 486                 lyxrc.print();
 487
 488         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 489         system_tempdir = os::getTmpDir();
 490         if (lyxerr.debugging(Debug::INIT)) {
 491                 lyxerr << "LyX tmp dir: `" << system_tempdir << '\'' << endl;
 492         }
 493
 494         lyxerr[Debug::INIT] << "Reading lastfiles `"
 495                             << lyxrc.lastfiles << "'..." << endl;
 496         lastfiles.reset(new LastFiles(lyxrc.lastfiles,
 497                                       lyxrc.check_lastfiles,
 498                                       lyxrc.num_lastfiles));
 499 }
 500
 501
 502 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 503 {
 504         kbmap->bind("Right", LFUN_RIGHT);
 505         kbmap->bind("Left", LFUN_LEFT);
 506         kbmap->bind("Up", LFUN_UP);
 507         kbmap->bind("Down", LFUN_DOWN);
 508
 509         kbmap->bind("Tab", LFUN_CELL_FORWARD);
 510         kbmap->bind("ISO_Left_Tab", LFUN_CELL_FORWARD); // jbl 2001-23-02
 511
 512         kbmap->bind("Home", LFUN_HOME);
 513         kbmap->bind("End", LFUN_END);
 514         kbmap->bind("Prior", LFUN_PRIOR);
 515         kbmap->bind("Next", LFUN_NEXT);
 516
 517         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 518         //kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 519
 520         kbmap->bind("Delete", LFUN_DELETE);
 521         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 522
 523         // sub- and superscript -MV
 524         kbmap->bind("~S-underscore", LFUN_SUBSCRIPT);
 525         kbmap->bind("~S-asciicircum", LFUN_SUPERSCRIPT);
 526
 527         // kbmap->bindings to enable the use of the numeric keypad
 528         // e.g. Num Lock set
 529         //kbmap->bind("KP_0", LFUN_SELFINSERT);
 530         //kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 531         kbmap->bind("KP_Enter", LFUN_BREAKPARAGRAPH);
 532         //kbmap->bind("KP_1", LFUN_SELFINSERT);
 533         //kbmap->bind("KP_2", LFUN_SELFINSERT);
 534         //kbmap->bind("KP_3", LFUN_SELFINSERT);
 535         //kbmap->bind("KP_4", LFUN_SELFINSERT);
 536         //kbmap->bind("KP_5", LFUN_SELFINSERT);
 537         //kbmap->bind("KP_6", LFUN_SELFINSERT);
 538         //kbmap->bind("KP_Add", LFUN_SELFINSERT);
 539         //kbmap->bind("KP_7", LFUN_SELFINSERT);
 540         //kbmap->bind("KP_8", LFUN_SELFINSERT);
 541         //kbmap->bind("KP_9", LFUN_SELFINSERT);
 542         //kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 543         //kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 544         //kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 545         kbmap->bind("KP_Right", LFUN_RIGHT);
 546         kbmap->bind("KP_Left", LFUN_LEFT);
 547         kbmap->bind("KP_Up", LFUN_UP);
 548         kbmap->bind("KP_Down", LFUN_DOWN);
 549         kbmap->bind("KP_Home", LFUN_HOME);
 550         kbmap->bind("KP_End", LFUN_END);
 551         kbmap->bind("KP_Prior", LFUN_PRIOR);
 552         kbmap->bind("KP_Next", LFUN_NEXT);
 553
 554         kbmap->bind("C-Tab", LFUN_CELL_SPLIT);  // ale970515
 555         kbmap->bind("S-Tab", LFUN_CELL_BACKWARD);  // jug20000522
 556         kbmap->bind("S-ISO_Left_Tab", LFUN_CELL_BACKWARD); // jbl 2001-23-02
 557 }
 558
 559
 560 void LyX::emergencyCleanup()
 561 {
 562         // what to do about tmpfiles is non-obvious. we would
 563         // like to delete any we find, but our lyxdir might
 564         // contain documents etc. which might be helpful on
 565         // a crash
 566
 567         bufferlist.emergencyWriteAll();
 568         if (lyxserver)
 569                 lyxserver->emergencyCleanup();
 570 }
 571
 572
 573 void LyX::deadKeyBindings(kb_keymap * kbmap)
 574 {
 575         // bindKeyings for transparent handling of deadkeys
 576         // The keysyms are gotten from XFree86 X11R6
 577         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 578         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 579         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 580         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 581         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 582         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 583         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 584         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 585         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 586         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 587         // nothing with this name
 588         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 589         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 590         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 591         // nothing with this name either...
 592         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 593         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 594         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 595         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 596 }
 597
 598
 599 void LyX::queryUserLyXDir(bool explicit_userdir)
 600 {
 601         string const configure_script = AddName(system_lyxdir, "configure");
 602
 603         // Does user directory exist?
 604         FileInfo fileInfo(user_lyxdir);
 605         if (fileInfo.isOK() && fileInfo.isDir()) {
 606                 first_start = false;
 607                 FileInfo script(configure_script);
 608                 FileInfo defaults(AddName(user_lyxdir, "lyxrc.defaults"));
 609                 if (defaults.isOK() && script.isOK()
 610                     && defaults.getModificationTime() < script.getModificationTime()) {
 611                         lyxerr << _("LyX: reconfiguring user directory")
 612                                << endl;
 613                         Path p(user_lyxdir);
 614                         ::system(configure_script.c_str());
 615                         lyxerr << "LyX: " << _("Done!") << endl;
 616                 }
 617                 return;
 618         }
 619
 620         first_start = !explicit_userdir;
 621
 622         lyxerr << bformat(_("LyX: Creating directory %1$s"
 623                                   " and running configure..."), user_lyxdir) << endl;
 624
 625         if (!createDirectory(user_lyxdir, 0755)) {
 626                 // Failed, let's use $HOME instead.
 627                 user_lyxdir = GetEnvPath("HOME");
 628                 lyxerr << bformat(_("Failed. Will use %1$s instead."),
 629                         user_lyxdir) << endl;
 630                 return;
 631         }
 632
 633         // Run configure in user lyx directory
 634         Path p(user_lyxdir);
 635         ::system(configure_script.c_str());
 636         lyxerr << "LyX: " << _("Done!") << endl;
 637 }
 638
 639
 640 void LyX::readRcFile(string const & name)
 641 {
 642         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 643
 644         string const lyxrc_path = LibFileSearch(string(), name);
 645         if (!lyxrc_path.empty()) {
 646
 647                 lyxerr[Debug::INIT] << "Found " << name
 648                                     << " in " << lyxrc_path << endl;
 649
 650                 if (lyxrc.read(lyxrc_path) >= 0)
 651                         return;
 652         }
 653
 654         showFileError(name);
 655 }
 656
 657
 658 // Read the ui file `name'
 659 void LyX::readUIFile(string const & name)
 660 {
 661         enum Uitags {
 662                 ui_menuset = 1,
 663                 ui_toolbar,
 664                 ui_toolbars,
 665                 ui_include,
 666                 ui_last
 667         };
 668
 669         struct keyword_item uitags[ui_last - 1] = {
 670                 { "include", ui_include },
 671                 { "menuset", ui_menuset },
 672                 { "toolbar", ui_toolbar },
 673                 { "toolbars", ui_toolbars }
 674         };
 675
 676         // Ensure that a file is read only once (prevents include loops)
 677         static std::list<string> uifiles;
 678         std::list<string>::const_iterator it  = uifiles.begin();
 679         std::list<string>::const_iterator end = uifiles.end();
 680         it = std::find(it, end, name);
 681         if (it != end) {
 682                 lyxerr[Debug::INIT] << "UI file '" << name
 683                                     << "' has been read already. "
 684                                     << "Is this an include loop?"
 685                                     << endl;
 686                 return;
 687         }
 688
 689         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 690
 691         string const ui_path = LibFileSearch("ui", name, "ui");
 692
 693         if (ui_path.empty()) {
 694                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 695                 showFileError(name);
 696                 return;
 697         }
 698         uifiles.push_back(name);
 699
 700         lyxerr[Debug::INIT] << "Found " << name
 701                             << " in " << ui_path << endl;
 702         LyXLex lex(uitags, ui_last - 1);
 703         lex.setFile(ui_path);
 704         if (!lex.isOK()) {
 705                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 706                        << endl;
 707         }
 708
 709         if (lyxerr.debugging(Debug::PARSER))
 710                 lex.printTable(lyxerr);
 711
 712         while (lex.isOK()) {
 713                 switch (lex.lex()) {
 714                 case ui_include: {
 715                         lex.next(true);
 716                         string const file = lex.getString();
 717                         readUIFile(file);
 718                         break;
 719                 }
 720                 case ui_menuset:
 721                         menubackend.read(lex);
 722                         break;
 723
 724                 case ui_toolbar:
 725                         toolbarbackend.read(lex);
 726                         break;
 727
 728                 case ui_toolbars:
 729                         toolbarbackend.readToolbars(lex);
 730                         break;
 731
 732                 default:
 733                         if (!rtrim(lex.getString()).empty())
 734                                 lex.printError("LyX::ReadUIFile: "
 735                                                "Unknown menu tag: `$$Token'");
 736                         break;
 737                 }
 738         }
 739 }
 740
 741
 742 // Read the languages file `name'
 743 void LyX::readLanguagesFile(string const & name)
 744 {
 745         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 746
 747         string const lang_path = LibFileSearch(string(), name);
 748         if (lang_path.empty()) {
 749                 showFileError(name);
 750                 return;
 751         }
 752         languages.read(lang_path);
 753 }
 754
 755
 756 // Read the encodings file `name'
 757 void LyX::readEncodingsFile(string const & name)
 758 {
 759         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 760
 761         string const enc_path = LibFileSearch(string(), name);
 762         if (enc_path.empty()) {
 763                 showFileError(name);
 764                 return;
 765         }
 766         encodings.read(enc_path);
 767 }
 768
 769
 770 namespace {
 771
 772 bool is_gui = true;
 773 string batch;
 774
 775 /// return the the number of arguments consumed
 776 typedef boost::function<int(string const &, string const &)> cmd_helper;
 777
 778 int parse_dbg(string const & arg, string const &)
 779 {
 780         if (arg.empty()) {
 781                 lyxerr << _("List of supported debug flags:") << endl;
 782                 Debug::showTags(lyxerr);
 783                 exit(0);
 784         }
 785         lyxerr << bformat(_("Setting debug level to %1$s"), arg) << endl;
 786
 787         lyxerr.level(Debug::value(arg));
 788         Debug::showLevel(lyxerr, lyxerr.level());
 789         return 1;
 790 }
 791
 792
 793 int parse_help(string const &, string const &)
 794 {
 795         lyxerr <<
 796                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 797                   "Command line switches (case sensitive):\n"
 798                   "\t-help              summarize LyX usage\n"
 799                   "\t-userdir dir       try to set user directory to dir\n"
 800                   "\t-sysdir dir        try to set system directory to dir\n"
 801                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 802                   "\t-dbg feature[,feature]...\n"
 803                   "                  select the features to debug.\n"
 804                   "                  Type `lyx -dbg' to see the list of features\n"
 805                   "\t-x [--execute] command\n"
 806                   "                  where command is a lyx command.\n"
 807                   "\t-e [--export] fmt\n"
 808                   "                  where fmt is the export format of choice.\n"
 809                   "\t-i [--import] fmt file.xxx\n"
 810                   "                  where fmt is the import format of choice\n"
 811                   "                  and file.xxx is the file to be imported.\n"
 812                   "\t-version        summarize version and build info\n"
 813                   "Check the LyX man page for more details.") << endl;
 814         exit(0);
 815         return 0;
 816 }
 817
 818 int parse_version(string const &, string const &)
 819 {
 820         lyxerr << "LyX " << lyx_version
 821                << " of " << lyx_release_date << endl;
 822         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 823
 824         lyxerr << lyx_version_info << endl;
 825         exit(0);
 826         return 0;
 827 }
 828
 829 int parse_sysdir(string const & arg, string const &)
 830 {
 831         if (arg.empty()) {
 832                 lyxerr << _("Missing directory for -sysdir switch") << endl;
 833                 exit(1);
 834         }
 835         system_lyxdir = arg;
 836         return 1;
 837 }
 838
 839 int parse_userdir(string const & arg, string const &)
 840 {
 841         if (arg.empty()) {
 842                 lyxerr << _("Missing directory for -userdir switch") << endl;
 843                 exit(1);
 844         }
 845         user_lyxdir = arg;
 846         return 1;
 847 }
 848
 849 int parse_execute(string const & arg, string const &)
 850 {
 851         if (arg.empty()) {
 852                 lyxerr << _("Missing command string after --execute switch") << endl;
 853                 exit(1);
 854         }
 855         batch = arg;
 856         // Argh. Setting gui to false segfaults..
 857         // FIXME: when ? how ?
 858         // is_gui = false;
 859         return 1;
 860 }
 861
 862 int parse_export(string const & type, string const &)
 863 {
 864         if (type.empty()) {
 865                 lyxerr << _("Missing file type [eg latex, ps...] after "
 866                         "--export switch") << endl;
 867                 exit(1);
 868         }
 869         batch = "buffer-export " + type;
 870         is_gui = false;
 871         return 1;
 872 }
 873
 874 int parse_import(string const & type, string const & file)
 875 {
 876         if (type.empty()) {
 877                 lyxerr << _("Missing file type [eg latex, ps...] after "
 878                         "--import switch") << endl;
 879                 exit(1);
 880         }
 881         if (file.empty()) {
 882                 lyxerr << _("Missing filename for --import") << endl;
 883                 exit(1);
 884         }
 885
 886         batch = "buffer-import " + type + ' ' + file;
 887         return 2;
 888 }
 889
 890 } // namespace anon
 891
 892
 893 bool LyX::easyParse(int & argc, char * argv[])
 894 {
 895         std::map<string, cmd_helper> cmdmap;
 896
 897         cmdmap["-dbg"] = parse_dbg;
 898         cmdmap["-help"] = parse_help;
 899         cmdmap["--help"] = parse_help;
 900         cmdmap["-version"] = parse_version;
 901         cmdmap["--version"] = parse_version;
 902         cmdmap["-sysdir"] = parse_sysdir;
 903         cmdmap["-userdir"] = parse_userdir;
 904         cmdmap["-x"] = parse_execute;
 905         cmdmap["--execute"] = parse_execute;
 906         cmdmap["-e"] = parse_export;
 907         cmdmap["--export"] = parse_export;
 908         cmdmap["-i"] = parse_import;
 909         cmdmap["--import"] = parse_import;
 910
 911         for (int i = 1; i < argc; ++i) {
 912                 std::map<string, cmd_helper>::const_iterator it
 913                         = cmdmap.find(argv[i]);
 914
 915                 // don't complain if not found - may be parsed later
 916                 if (it == cmdmap.end())
 917                         continue;
 918
 919                 string arg((i + 1 < argc) ? argv[i + 1] : "");
 920                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
 921
 922                 int const remove = 1 + it->second(arg, arg2);
 923
 924                 // Now, remove used arguments by shifting
 925                 // the following ones remove places down.
 926                 argc -= remove;
 927                 for (int j = i; j < argc; ++j)
 928                         argv[j] = argv[j + remove];
 929                 --i;
 930         }
 931
 932         batch_command = batch;
 933
 934         return is_gui;
 935 }