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/FileInfo.h"
  17 #include "support/path.h"
  18 #include "support/path_defines.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 extern string system_lyxdir;
  68 extern string build_lyxdir;
  69 extern 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         bool const explicit_userdir = setLyxPaths();
 241
 242         // Check that user LyX directory is ok. We don't do that if
 243         // running in batch mode.
 244         if (gui) {
 245                 queryUserLyXDir(explicit_userdir);
 246         } else {
 247                 first_start = false;
 248         }
 249
 250         // Disable gui when easyparse says so
 251         lyx_gui::use_gui = gui;
 252
 253         if (lyxrc.template_path.empty()) {
 254                 lyxrc.template_path = AddPath(system_lyxdir, "templates");
 255         }
 256
 257         if (lyxrc.lastfiles.empty()) {
 258                 lyxrc.lastfiles = AddName(user_lyxdir, "lastfiles");
 259         }
 260
 261         if (lyxrc.roman_font_name.empty())
 262                 lyxrc.roman_font_name = lyx_gui::roman_font_name();
 263         if (lyxrc.sans_font_name.empty())
 264                 lyxrc.sans_font_name = lyx_gui::sans_font_name();
 265         if (lyxrc.typewriter_font_name.empty())
 266                 lyxrc.typewriter_font_name = lyx_gui::typewriter_font_name();
 267
 268         //
 269         // Read configuration files
 270         //
 271
 272         readRcFile("lyxrc.defaults");
 273         system_lyxrc = lyxrc;
 274         system_formats = formats;
 275         system_converters = converters;
 276         system_lcolor = lcolor;
 277
 278         string prefsfile = "preferences";
 279         // back compatibility to lyxs < 1.1.6
 280         if (LibFileSearch(string(), prefsfile).empty())
 281                 prefsfile = "lyxrc";
 282         if (!LibFileSearch(string(), prefsfile).empty())
 283                 readRcFile(prefsfile);
 284
 285         readEncodingsFile("encodings");
 286         readLanguagesFile("languages");
 287
 288         // Load the layouts
 289         lyxerr[Debug::INIT] << "Reading layouts..." << endl;
 290         LyXSetStyle();
 291
 292         if (gui) {
 293                 // Set up bindings
 294                 toplevel_keymap.reset(new kb_keymap);
 295                 defaultKeyBindings(toplevel_keymap.get());
 296                 toplevel_keymap->read(lyxrc.bind_file);
 297
 298                 // Read menus
 299                 readUIFile(lyxrc.ui_file);
 300         }
 301
 302         if (lyxerr.debugging(Debug::LYXRC))
 303                 lyxrc.print();
 304
 305         os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
 306         if (lyxerr.debugging(Debug::INIT)) {
 307                 lyxerr << "LyX tmp dir: `" << os::getTmpDir() << '\'' << endl;
 308         }
 309
 310         lyxerr[Debug::INIT] << "Reading lastfiles `"
 311                             << lyxrc.lastfiles << "'..." << endl;
 312         lastfiles.reset(new LastFiles(lyxrc.lastfiles,
 313                                       lyxrc.check_lastfiles,
 314                                       lyxrc.num_lastfiles));
 315 }
 316
 317
 318 void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 319 {
 320         kbmap->bind("Right", LFUN_RIGHT);
 321         kbmap->bind("Left", LFUN_LEFT);
 322         kbmap->bind("Up", LFUN_UP);
 323         kbmap->bind("Down", LFUN_DOWN);
 324
 325         kbmap->bind("Tab", LFUN_CELL_FORWARD);
 326         kbmap->bind("ISO_Left_Tab", LFUN_CELL_FORWARD); // jbl 2001-23-02
 327
 328         kbmap->bind("Home", LFUN_HOME);
 329         kbmap->bind("End", LFUN_END);
 330         kbmap->bind("Prior", LFUN_PRIOR);
 331         kbmap->bind("Next", LFUN_NEXT);
 332
 333         kbmap->bind("Return", LFUN_BREAKPARAGRAPH);
 334         //kbmap->bind("~C-~S-~M-nobreakspace", LFUN_PROTECTEDSPACE);
 335
 336         kbmap->bind("Delete", LFUN_DELETE);
 337         kbmap->bind("BackSpace", LFUN_BACKSPACE);
 338
 339         // sub- and superscript -MV
 340         kbmap->bind("~S-underscore", LFUN_SUBSCRIPT);
 341         kbmap->bind("~S-asciicircum", LFUN_SUPERSCRIPT);
 342
 343         // kbmap->bindings to enable the use of the numeric keypad
 344         // e.g. Num Lock set
 345         //kbmap->bind("KP_0", LFUN_SELFINSERT);
 346         //kbmap->bind("KP_Decimal", LFUN_SELFINSERT);
 347         kbmap->bind("KP_Enter", LFUN_BREAKPARAGRAPH);
 348         //kbmap->bind("KP_1", LFUN_SELFINSERT);
 349         //kbmap->bind("KP_2", LFUN_SELFINSERT);
 350         //kbmap->bind("KP_3", LFUN_SELFINSERT);
 351         //kbmap->bind("KP_4", LFUN_SELFINSERT);
 352         //kbmap->bind("KP_5", LFUN_SELFINSERT);
 353         //kbmap->bind("KP_6", LFUN_SELFINSERT);
 354         //kbmap->bind("KP_Add", LFUN_SELFINSERT);
 355         //kbmap->bind("KP_7", LFUN_SELFINSERT);
 356         //kbmap->bind("KP_8", LFUN_SELFINSERT);
 357         //kbmap->bind("KP_9", LFUN_SELFINSERT);
 358         //kbmap->bind("KP_Divide", LFUN_SELFINSERT);
 359         //kbmap->bind("KP_Multiply", LFUN_SELFINSERT);
 360         //kbmap->bind("KP_Subtract", LFUN_SELFINSERT);
 361         kbmap->bind("KP_Right", LFUN_RIGHT);
 362         kbmap->bind("KP_Left", LFUN_LEFT);
 363         kbmap->bind("KP_Up", LFUN_UP);
 364         kbmap->bind("KP_Down", LFUN_DOWN);
 365         kbmap->bind("KP_Home", LFUN_HOME);
 366         kbmap->bind("KP_End", LFUN_END);
 367         kbmap->bind("KP_Prior", LFUN_PRIOR);
 368         kbmap->bind("KP_Next", LFUN_NEXT);
 369
 370         kbmap->bind("C-Tab", LFUN_CELL_SPLIT);  // ale970515
 371         kbmap->bind("S-Tab", LFUN_CELL_BACKWARD);  // jug20000522
 372         kbmap->bind("S-ISO_Left_Tab", LFUN_CELL_BACKWARD); // jbl 2001-23-02
 373 }
 374
 375
 376 void LyX::emergencyCleanup()
 377 {
 378         // what to do about tmpfiles is non-obvious. we would
 379         // like to delete any we find, but our lyxdir might
 380         // contain documents etc. which might be helpful on
 381         // a crash
 382
 383         bufferlist.emergencyWriteAll();
 384         if (lyxserver)
 385                 lyxserver->emergencyCleanup();
 386 }
 387
 388
 389 void LyX::deadKeyBindings(kb_keymap * kbmap)
 390 {
 391         // bindKeyings for transparent handling of deadkeys
 392         // The keysyms are gotten from XFree86 X11R6
 393         kbmap->bind("~C-~S-~M-dead_acute", LFUN_ACUTE);
 394         kbmap->bind("~C-~S-~M-dead_breve", LFUN_BREVE);
 395         kbmap->bind("~C-~S-~M-dead_caron", LFUN_CARON);
 396         kbmap->bind("~C-~S-~M-dead_cedilla", LFUN_CEDILLA);
 397         kbmap->bind("~C-~S-~M-dead_abovering", LFUN_CIRCLE);
 398         kbmap->bind("~C-~S-~M-dead_circumflex", LFUN_CIRCUMFLEX);
 399         kbmap->bind("~C-~S-~M-dead_abovedot", LFUN_DOT);
 400         kbmap->bind("~C-~S-~M-dead_grave", LFUN_GRAVE);
 401         kbmap->bind("~C-~S-~M-dead_doubleacute", LFUN_HUNG_UMLAUT);
 402         kbmap->bind("~C-~S-~M-dead_macron", LFUN_MACRON);
 403         // nothing with this name
 404         // kbmap->bind("~C-~S-~M-dead_special_caron", LFUN_SPECIAL_CARON);
 405         kbmap->bind("~C-~S-~M-dead_tilde", LFUN_TILDE);
 406         kbmap->bind("~C-~S-~M-dead_diaeresis", LFUN_UMLAUT);
 407         // nothing with this name either...
 408         //kbmap->bind("~C-~S-~M-dead_underbar", LFUN_UNDERBAR);
 409         kbmap->bind("~C-~S-~M-dead_belowdot", LFUN_UNDERDOT);
 410         kbmap->bind("~C-~S-~M-dead_tie", LFUN_TIE);
 411         kbmap->bind("~C-~S-~M-dead_ogonek", LFUN_OGONEK);
 412 }
 413
 414
 415 void LyX::queryUserLyXDir(bool explicit_userdir)
 416 {
 417         string const configure_script = AddName(system_lyxdir, "configure");
 418
 419         // Does user directory exist?
 420         FileInfo fileInfo(user_lyxdir);
 421         if (fileInfo.isOK() && fileInfo.isDir()) {
 422                 first_start = false;
 423                 FileInfo script(configure_script);
 424                 FileInfo defaults(AddName(user_lyxdir, "lyxrc.defaults"));
 425                 if (defaults.isOK() && script.isOK()
 426                     && defaults.getModificationTime() < script.getModificationTime()) {
 427                         lyxerr << _("LyX: reconfiguring user directory")
 428                                << endl;
 429                         Path p(user_lyxdir);
 430                         ::system(configure_script.c_str());
 431                         lyxerr << "LyX: " << _("Done!") << endl;
 432                 }
 433                 return;
 434         }
 435
 436         first_start = !explicit_userdir;
 437
 438         lyxerr << bformat(_("LyX: Creating directory %1$s"
 439                                   " and running configure..."), user_lyxdir) << endl;
 440
 441         if (!createDirectory(user_lyxdir, 0755)) {
 442                 // Failed, let's use $HOME instead.
 443                 user_lyxdir = GetEnvPath("HOME");
 444                 lyxerr << bformat(_("Failed. Will use %1$s instead."),
 445                         user_lyxdir) << endl;
 446                 return;
 447         }
 448
 449         // Run configure in user lyx directory
 450         Path p(user_lyxdir);
 451         ::system(configure_script.c_str());
 452         lyxerr << "LyX: " << _("Done!") << endl;
 453 }
 454
 455
 456 void LyX::readRcFile(string const & name)
 457 {
 458         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 459
 460         string const lyxrc_path = LibFileSearch(string(), name);
 461         if (!lyxrc_path.empty()) {
 462
 463                 lyxerr[Debug::INIT] << "Found " << name
 464                                     << " in " << lyxrc_path << endl;
 465
 466                 if (lyxrc.read(lyxrc_path) >= 0)
 467                         return;
 468         }
 469
 470         showFileError(name);
 471 }
 472
 473
 474 // Read the ui file `name'
 475 void LyX::readUIFile(string const & name)
 476 {
 477         enum Uitags {
 478                 ui_menuset = 1,
 479                 ui_toolbar,
 480                 ui_toolbars,
 481                 ui_include,
 482                 ui_last
 483         };
 484
 485         struct keyword_item uitags[ui_last - 1] = {
 486                 { "include", ui_include },
 487                 { "menuset", ui_menuset },
 488                 { "toolbar", ui_toolbar },
 489                 { "toolbars", ui_toolbars }
 490         };
 491
 492         // Ensure that a file is read only once (prevents include loops)
 493         static std::list<string> uifiles;
 494         std::list<string>::const_iterator it  = uifiles.begin();
 495         std::list<string>::const_iterator end = uifiles.end();
 496         it = std::find(it, end, name);
 497         if (it != end) {
 498                 lyxerr[Debug::INIT] << "UI file '" << name
 499                                     << "' has been read already. "
 500                                     << "Is this an include loop?"
 501                                     << endl;
 502                 return;
 503         }
 504
 505         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 506
 507         string const ui_path = LibFileSearch("ui", name, "ui");
 508
 509         if (ui_path.empty()) {
 510                 lyxerr[Debug::INIT] << "Could not find " << name << endl;
 511                 showFileError(name);
 512                 return;
 513         }
 514         uifiles.push_back(name);
 515
 516         lyxerr[Debug::INIT] << "Found " << name
 517                             << " in " << ui_path << endl;
 518         LyXLex lex(uitags, ui_last - 1);
 519         lex.setFile(ui_path);
 520         if (!lex.isOK()) {
 521                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
 522                        << endl;
 523         }
 524
 525         if (lyxerr.debugging(Debug::PARSER))
 526                 lex.printTable(lyxerr);
 527
 528         while (lex.isOK()) {
 529                 switch (lex.lex()) {
 530                 case ui_include: {
 531                         lex.next(true);
 532                         string const file = lex.getString();
 533                         readUIFile(file);
 534                         break;
 535                 }
 536                 case ui_menuset:
 537                         menubackend.read(lex);
 538                         break;
 539
 540                 case ui_toolbar:
 541                         toolbarbackend.read(lex);
 542                         break;
 543
 544                 case ui_toolbars:
 545                         toolbarbackend.readToolbars(lex);
 546                         break;
 547
 548                 default:
 549                         if (!rtrim(lex.getString()).empty())
 550                                 lex.printError("LyX::ReadUIFile: "
 551                                                "Unknown menu tag: `$$Token'");
 552                         break;
 553                 }
 554         }
 555 }
 556
 557
 558 // Read the languages file `name'
 559 void LyX::readLanguagesFile(string const & name)
 560 {
 561         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 562
 563         string const lang_path = LibFileSearch(string(), name);
 564         if (lang_path.empty()) {
 565                 showFileError(name);
 566                 return;
 567         }
 568         languages.read(lang_path);
 569 }
 570
 571
 572 // Read the encodings file `name'
 573 void LyX::readEncodingsFile(string const & name)
 574 {
 575         lyxerr[Debug::INIT] << "About to read " << name << "..." << endl;
 576
 577         string const enc_path = LibFileSearch(string(), name);
 578         if (enc_path.empty()) {
 579                 showFileError(name);
 580                 return;
 581         }
 582         encodings.read(enc_path);
 583 }
 584
 585
 586 namespace {
 587
 588 bool is_gui = true;
 589 string batch;
 590
 591 /// return the the number of arguments consumed
 592 typedef boost::function<int(string const &, string const &)> cmd_helper;
 593
 594 int parse_dbg(string const & arg, string const &)
 595 {
 596         if (arg.empty()) {
 597                 lyxerr << _("List of supported debug flags:") << endl;
 598                 Debug::showTags(lyxerr);
 599                 exit(0);
 600         }
 601         lyxerr << bformat(_("Setting debug level to %1$s"), arg) << endl;
 602
 603         lyxerr.level(Debug::value(arg));
 604         Debug::showLevel(lyxerr, lyxerr.level());
 605         return 1;
 606 }
 607
 608
 609 int parse_help(string const &, string const &)
 610 {
 611         lyxerr <<
 612                 _("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"
 613                   "Command line switches (case sensitive):\n"
 614                   "\t-help              summarize LyX usage\n"
 615                   "\t-userdir dir       try to set user directory to dir\n"
 616                   "\t-sysdir dir        try to set system directory to dir\n"
 617                   "\t-geometry WxH+X+Y  set geometry of the main window\n"
 618                   "\t-dbg feature[,feature]...\n"
 619                   "                  select the features to debug.\n"
 620                   "                  Type `lyx -dbg' to see the list of features\n"
 621                   "\t-x [--execute] command\n"
 622                   "                  where command is a lyx command.\n"
 623                   "\t-e [--export] fmt\n"
 624                   "                  where fmt is the export format of choice.\n"
 625                   "\t-i [--import] fmt file.xxx\n"
 626                   "                  where fmt is the import format of choice\n"
 627                   "                  and file.xxx is the file to be imported.\n"
 628                   "\t-version        summarize version and build info\n"
 629                   "Check the LyX man page for more details.") << endl;
 630         exit(0);
 631         return 0;
 632 }
 633
 634 int parse_version(string const &, string const &)
 635 {
 636         lyxerr << "LyX " << lyx_version
 637                << " of " << lyx_release_date << endl;
 638         lyxerr << "Built on " << __DATE__ << ", " << __TIME__ << endl;
 639
 640         lyxerr << lyx_version_info << endl;
 641         exit(0);
 642         return 0;
 643 }
 644
 645 int parse_sysdir(string const & arg, string const &)
 646 {
 647         if (arg.empty()) {
 648                 lyxerr << _("Missing directory for -sysdir switch") << endl;
 649                 exit(1);
 650         }
 651         system_lyxdir = arg;
 652         return 1;
 653 }
 654
 655 int parse_userdir(string const & arg, string const &)
 656 {
 657         if (arg.empty()) {
 658                 lyxerr << _("Missing directory for -userdir switch") << endl;
 659                 exit(1);
 660         }
 661         user_lyxdir = arg;
 662         return 1;
 663 }
 664
 665 int parse_execute(string const & arg, string const &)
 666 {
 667         if (arg.empty()) {
 668                 lyxerr << _("Missing command string after --execute switch") << endl;
 669                 exit(1);
 670         }
 671         batch = arg;
 672         // Argh. Setting gui to false segfaults..
 673         // FIXME: when ? how ?
 674         // is_gui = false;
 675         return 1;
 676 }
 677
 678 int parse_export(string const & type, string const &)
 679 {
 680         if (type.empty()) {
 681                 lyxerr << _("Missing file type [eg latex, ps...] after "
 682                         "--export switch") << endl;
 683                 exit(1);
 684         }
 685         batch = "buffer-export " + type;
 686         is_gui = false;
 687         return 1;
 688 }
 689
 690 int parse_import(string const & type, string const & file)
 691 {
 692         if (type.empty()) {
 693                 lyxerr << _("Missing file type [eg latex, ps...] after "
 694                         "--import switch") << endl;
 695                 exit(1);
 696         }
 697         if (file.empty()) {
 698                 lyxerr << _("Missing filename for --import") << endl;
 699                 exit(1);
 700         }
 701
 702         batch = "buffer-import " + type + ' ' + file;
 703         return 2;
 704 }
 705
 706 } // namespace anon
 707
 708
 709 bool LyX::easyParse(int & argc, char * argv[])
 710 {
 711         std::map<string, cmd_helper> cmdmap;
 712
 713         cmdmap["-dbg"] = parse_dbg;
 714         cmdmap["-help"] = parse_help;
 715         cmdmap["--help"] = parse_help;
 716         cmdmap["-version"] = parse_version;
 717         cmdmap["--version"] = parse_version;
 718         cmdmap["-sysdir"] = parse_sysdir;
 719         cmdmap["-userdir"] = parse_userdir;
 720         cmdmap["-x"] = parse_execute;
 721         cmdmap["--execute"] = parse_execute;
 722         cmdmap["-e"] = parse_export;
 723         cmdmap["--export"] = parse_export;
 724         cmdmap["-i"] = parse_import;
 725         cmdmap["--import"] = parse_import;
 726
 727         for (int i = 1; i < argc; ++i) {
 728                 std::map<string, cmd_helper>::const_iterator it
 729                         = cmdmap.find(argv[i]);
 730
 731                 // don't complain if not found - may be parsed later
 732                 if (it == cmdmap.end())
 733                         continue;
 734
 735                 string arg((i + 1 < argc) ? argv[i + 1] : "");
 736                 string arg2((i + 2 < argc) ? argv[i + 2] : "");
 737
 738                 int const remove = 1 + it->second(arg, arg2);
 739
 740                 // Now, remove used arguments by shifting
 741                 // the following ones remove places down.
 742                 argc -= remove;
 743                 for (int j = i; j < argc; ++j)
 744                         argv[j] = argv[j + remove];
 745                 --i;
 746         }
 747
 748         batch_command = batch;
 749
 750         return is_gui;
 751 }