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