Quelle lyx_main.C Sprache: C

/* This file is part of
* ======================================================
*
*           LyX, The Document Processor
*
*     Copyright (C) 1995 Matthias Ettrich
*           Copyright (C) 1995-1998 The LyX Team.
*
*======================================================*/

#include <config.h>

// $Id: lyx_main.C,v 1.2 1998/05/10 03:20:18 larsbj Exp $

#if !defined(lint) && !defined(WITH_WARNINGS)
static char vcid[] = "$Id: lyx_main.C,v 1.2 1998/05/10 03:20:18 larsbj Exp $";
#endif /* lint */

#include <stdlib.h>
#include <signal.h>

#include "version.h"
#include "lyx_main.h"
#include "lyx_gui.h"
#include "lyx_gui_misc.h"
#include "lyxrc.h"
#include "pathstack.h"
#include "filetools.h"
#include "bufferlist.h"
#include "error.h"
#include "FileInfo.h"
#include "lastfiles.h"
#include "intl.h"
#include "lyxserver.h"
#include "layout.h"
#include "gettext.h"

extern void LoadLyXFile(LString const &);

LString system_lyxdir;
LString build_lyxdir;
LString system_tempdir;
LString user_lyxdir; // Default $HOME/.lyx

// Should this be kept global? Asger says Yes.
Error lyxerr;

LastFiles *lastfiles;
LyXRC *lyxrc;

// This is the global bufferlist object
BufferList bufferlist;

LyXServer *lyxserver = 0;
// this should be static, but I need it in buffer.C
bool finished = false; // flag, that we are quitting the program

// convenient to have it here.
kb_keymap *toplevel_keymap;

// from spellchecker.C
#if 0
extern void sigchldhandler(int sig);
#endif

LyX::LyX(int *argc, char *argv[])
{
// Prevent crash with --help
lyxGUI = 0;
lastfiles = 0;

// Here we need to parse the command line. At least
// we need to parse for "-dbg" and "-help"
bool gui = easyParse(argc, argv);

// Global bindings (this must be done as early as possible.) (Lgb)
toplevel_keymap = new kb_keymap;

lyxerr.debug("Initializing lyxrc");
lyxrc = new LyXRC;

// Make the GUI object, and let it take care of the
// command line arguments that concerns it.
lyxerr.debug("Initializing LyXGUI...");
lyxGUI = new LyXGUI(this, argc, argv, gui);
lyxerr.debug("Initializing LyXGUI...done");

// Initialization of LyX (reads lyxrc and more)
lyxerr.debug("Initializing LyX::init...");
init(argc, argv);
lyxerr.debug("Initializing LyX::init...done");

lyxGUI->init();

// Load the files specified in the command line.
// Now the GUI and LyX have taken care of their arguments, so
// the only thing left on the command line should be
// filenames.
if ((*argc)==2)
  lyxerr.debug("Opening document...");
else if ((*argc)>2)
  lyxerr.debug("Opening documents...");

Buffer *last_loaded = NULL;

for (int argi = (*argc) - 1; argi >= 1; argi--) {
  Buffer * loadb = bufferlist.loadLyXFile(argv[argi]);
  if (loadb != 0) {
   last_loaded = loadb;
  }
}

if (last_loaded != NULL) {
  lyxerr.debug("Yes we loaded some files.");
  lyxGUI->regBuf(last_loaded);
}

// Let the ball begin...
lyxGUI->runTime();
}

// A destructor is always necessary  (asierra-970604)
LyX::~LyX()
{
if (lastfiles)
  delete lastfiles;

if (lyxGUI)
  delete lyxGUI;
}

void error_handler(int err_sig);

void LyX::init(int */*argc*/, char **argv)
{
// Install the signal handlers
signal(SIGHUP, error_handler);
signal(SIGFPE, error_handler);
signal(SIGSEGV, error_handler);
signal(SIGINT, error_handler);
signal(SIGTERM, error_handler);

#if 0
// Install the SIGCHLD handler
act_.sa_handler = sigchldhandler;
        //act_.sa_mask = SIGCHLD;
        act_.sa_flags = 0;
//act_.sa_flags = SA_RESTART; //perhaps
        sigaction(SIGCHLD, &act_, NULL);
#endif
//
// Determine path of binary
//

LString binpath = argv[0];
binpath.subst('\\','/');
LString binname = OnlyFilename(argv[0]);
// Sorry for system specific code. (SMiyata)
if (binname.suffixIs(".exe")) binname.substring(0,binname.length()-5);

binpath = ExpandPath(binpath); // This expands ./ and ~/

if (!AbsolutePath(binpath)) {
  LString binsearchpath = getEnvPath("PATH");
  binsearchpath += ";."; // This will make "src/lyx" work always :-)
  binpath = FileOpenSearch(binsearchpath, argv[0]);
}

binpath = MakeAbsPath(OnlyPath(binpath));

if (binpath.empty()) {
  lyxerr.print(_("Warning: could not determine path of binary."));
  lyxerr.print(_("If you have problems, try starting LyX with an absolute path."));
}
lyxerr.debug("Path of binary: " + binpath);

//
// Determine system directory.
//

// Directories are searched in this order:
// 1) -sysdir command line parameter
// 2) LYX_DIR_10x environment variable
// 3) Maybe <path of binary>/TOP_SRCDIR/lib
// 4) <path of binary>/../share/<name of binary>/
// 5) hardcoded lyx_dir
// The directory is checked for the presence of the file
// "chkconfig.ltx", and if that is present, the directory
// is accepted as the system directory.
// If no chkconfig.ltx file is found, a warning is given,
// and the hardcoded lyx_dir is used.

// If we had a command line switch, system_lyxdir is already set
LString searchpath = MakeAbsPath(system_lyxdir) + ';';

// LYX_DIR_10x environment variable
LString lyxdir = getEnvPath("LYX_DIR_10x");

if (!lyxdir.empty()) {
  lyxerr.debug("LYX_DIR_10x: " + lyxdir, Error::INIT);
  searchpath += lyxdir + ';';
}

// <path of binary>/TOP_SRCDIR/lib
build_lyxdir = MakeAbsPath("../lib", binpath);
if (!FileSearch(build_lyxdir, "lyxrc.defaults").empty()) {
  searchpath += MakeAbsPath(AddPath(TOP_SRCDIR, "lib"),
       binpath) + ';';
  lyxerr.debug("Checking whether LyX is run in "
         "place... yes", Error::INIT);
} else {
  lyxerr.debug("Checking whether LyX is run in place... no",
         Error::INIT);
  build_lyxdir.clean();
}

// Path of binary/../share/name of binary/
searchpath += NormalizePath(binpath + "../share/" +
        OnlyFilename(binname)) + ';';

// Hardcoded dir
searchpath += LYX_DIR;

// If debugging, show complete search path
lyxerr.debug("System directory search path: "+searchpath, Error::INIT);

LString const filename = "chkconfig.ltx";
LString temp = FileOpenSearch(searchpath, filename, LString());
system_lyxdir = OnlyPath(temp);

// Reduce "path/../path" stuff out of system directory
system_lyxdir = NormalizePath(system_lyxdir);

bool path_shown = false;

// Warn if environment variable is set, but unusable
if (!lyxdir.empty()) {
  if (system_lyxdir != NormalizePath(lyxdir)) {
   lyxerr.print(_("LYX_DIR_10x environment variable no good."));
   lyxerr.print(_("System directory set to: ")
         + system_lyxdir);
   path_shown = true;
  }
}

// Warn the user if we couldn't find "chkconfig.ltx"
if (system_lyxdir.empty()) {
  lyxerr.print(_("LyX Warning! Couldn't determine system directory."));
  lyxerr.print(_("Try the '-sysdir' command line parameter or"));
  lyxerr.print(_("set the environment variable LYX_DIR_10x to the "
         "LyX system directory"));
  lyxerr.print(_("containing the file `chkconfig.ltx'."));
  if (!path_shown)
   lyxerr.print(_("Using built-in default ")
         + LString(LYX_DIR) + _(" but expect problems."));
  else
   lyxerr.print(_("Expect problems."));
  system_lyxdir = LYX_DIR;
  path_shown = true;
}

// Report the system directory if debugging is on
if (!path_shown)
  lyxerr.debug("System directory: '" + system_lyxdir + '\'',
         Error::INIT);

//
// Determine user lyx-dir
//

user_lyxdir = AddPath(getEnvPath("HOME"), LString('.')+LYX_NAME);
lyxerr.debug("User LyX directory: '"
       + user_lyxdir + '\'', Error::INIT);

// Check that user LyX directory is ok.
queryUserLyXDir();

//
// Load the layouts first
//

lyxerr.debug("Reading layouts...", Error::INIT);
LyXSetStyle();

//
// Shine up lyxrc defaults
//

// Default template path: system_dir/templates
if (lyxrc->template_path.empty()){
  lyxrc->template_path = AddPath(system_lyxdir, "templates");
}

// Default lastfiles file: $HOME/.lyx/lastfiles
if (lyxrc->lastfiles.empty()){
  lyxrc->lastfiles = AddName(user_lyxdir, "lastfiles");
}

// Calculate screen dpi as average of x-DPI and y-DPI:
Screen * scr=(DefaultScreenOfDisplay(fl_get_display()));
lyxrc->dpi = ((HeightOfScreen(scr)* 25.4 / HeightMMOfScreen(scr)) +
        (WidthOfScreen(scr)* 25.4 / WidthMMOfScreen(scr))) / 2;
lyxerr.debug(LString("DPI setting detected to be ") +
        int(lyxrc->dpi+0.5));

//
// Read configuration files
//

ReadRcFile("lyxrc.defaults");
ReadRcFile("lyxrc");

// Ensure that we have really read a bind file, so that LyX is
// usable.
if (!lyxrc->hasBindFile)
  lyxrc->ReadBindFile();

if (lyxerr.debugging(Error::LYXRC)) {
  lyxrc->Print();
}

// Create temp directory
system_tempdir = CreateLyXTmpDir(lyxrc->tempdir_path);
if (lyxerr.debugging(Error::INIT)) {
  lyxerr.print("LyX tmp dir: `" + system_tempdir + '\'');
}

// load the lastfiles mini-database
lyxerr.debug("Reading lastfiles `" + lyxrc->lastfiles + "'...",
        Error::INIT);
lastfiles = new LastFiles(lyxrc->lastfiles,
      lyxrc->check_lastfiles,
      lyxrc->num_lastfiles);

// start up the lyxserver. (is this a bit early?) (Lgb)
// 0.12 this will be way to early, we need the GUI to be initialized
// first, so move it for now.
// lyxserver = new LyXServer;
}

// This one is not allowed to use anything on the main form, since that
// one does not exist yet. (Asger)
void LyX::queryUserLyXDir()
{
// Does user directory exist?
FileInfo fileInfo(user_lyxdir);
if (fileInfo.isOK() && fileInfo.isDir()) {
  return;
}

// Nope
if (!AskQuestion(_("You don't have a personal LyX directory."),
    _("It is needed to keep your own configuration."),
    _("Should I try to set it up for you (recommended)?"))) {
  lyxerr.print(_("Running without personal LyX directory."));
  // No, let's use $HOME instead.
  user_lyxdir = getEnvPath("HOME");
  return;
}

// Tell the user what is going on
lyxerr.print(_("LyX: Creating directory ") + user_lyxdir + _(" and running configure..."));

// Create directory structure
if (!createDirectory(user_lyxdir, 0755)) {
  // Failed, let's use $HOME instead.
  user_lyxdir = getEnvPath("HOME");
  lyxerr.print(_("Failed. Will use ") + user_lyxdir + _(" instead."));
  return;
}

// Run configure in user lyx directory
PathPush(user_lyxdir);
system(AddName(system_lyxdir,"configure").c_str());
PathPop();
lyxerr.print(LString("LyX: ") + _("Done!"));
}

// Read the rc file `name'
void LyX::ReadRcFile(LString const & name)
{
lyxerr.debug("About to read "+name+"...", Error::INIT);

LString lyxrc_path = LibFileSearch(LString(), name);
if (!lyxrc_path.empty()){
         lyxerr.debug("Found "+name+" in " + lyxrc_path, Error::INIT);
  if (lyxrc->Read(lyxrc_path) < 0) {
          WriteAlert(_("LyX Warning!"),
       _("Error while reading ")+lyxrc_path+".",
       _("Using built-in defaults."));
  }
} else
    lyxerr.debug("Could not find "+name, Error::INIT);
}

// Set debugging level and report result to user
void setDebuggingLevel(int dbgLevel)
{
lyxerr.print(LString(_("Setting debug level to ")) + dbgLevel);
lyxerr.setDebugLevel(dbgLevel);
lyxerr.debug(LString("Debugging INFO #") + int(Error::INFO),
       Error::INFO);
lyxerr.debug(LString("Debugging INIT #") + int(Error::INIT),
       Error::INIT);
lyxerr.debug(LString("Debugging KEY #") + int(Error::KEY),
       Error::KEY);
lyxerr.debug(LString("Debugging TOOLBAR #") + int(Error::TOOLBAR),
       Error::TOOLBAR);
lyxerr.debug(LString("Debugging LEX and PARSER #") +
       int(Error::LEX_PARSER),
       Error::LEX_PARSER);
lyxerr.debug(LString("Debugging LYXRC #") + int(Error::LYXRC),
       Error::LYXRC);
lyxerr.debug(LString("Debugging KBMAP #") + int(Error::KBMAP),
       Error::KBMAP);
lyxerr.debug(LString("Debugging LATEX #") + int(Error::LATEX),
       Error::LATEX);
lyxerr.debug(LString("Debugging MATHED #") + int(Error::MATHED),
       Error::MATHED);
lyxerr.debug(LString("Debugging FONT #") + int(Error::FONT),
       Error::FONT);
lyxerr.debug(LString("Debugging TCLASS #") + int(Error::TCLASS),
       Error::TCLASS);
lyxerr.debug(LString("Debugging LYXVC #") + int(Error::LYXVC),
       Error::LYXVC);
lyxerr.debug(LString("Debugging LYXSERVER #") + int(Error::LYXSERVER),
       Error::LYXVC);
}

// Give command line help
void commandLineHelp()
{
lyxerr.print(_("LyX " LYX_VERSION " of " LYX_RELEASE ".\n"));
lyxerr.print(_("Usage: lyx [ command line switches ] [ name.lyx ... ]\n"));
lyxerr.print(_("Command line switches (case sensitive):"));
lyxerr.print(_(" -help summarize LyX usage"));
lyxerr.print(_(" -sysdir x try to set system directory to x"));
lyxerr.print(_(" -width x set the width of the main window"));
lyxerr.print(_(" -height y set the height of the main window"));
lyxerr.print(_(" -xpos x set the x position of the main window"));
lyxerr.print(_(" -ypos y set the y position of the main window"));
lyxerr.print(_(" -dbg n where n is a sum of debugging options. Try -dbg 65535 -help"));
lyxerr.print(_(" -Reverse swaps foreground & background colors"));
lyxerr.print(_(" -Mono runs LyX in black and white mode"));
lyxerr.print(_(" -FastSelection use a fast routine for drawing selections\n"));
lyxerr.print(_("Check the LyX man page for more options."));
}

bool LyX::easyParse(int *argc, char *argv[])
{
bool gui = true;
for(int i=1; i < *argc; i++) {
  LString arg = argv[i];
  // Check for -dbg int
  if (arg == "-dbg") {
   if (i+1 < *argc) {
    int erri = 0;
    sscanf(argv[i+1],"%d", &erri);

    setDebuggingLevel(erri);

    // Now, remove these two arguments by shifting
    // the following two places down.
    (*argc) -= 2;
    for (int j=i; j < (*argc); j++)
     argv[j] = argv[j+2];
    i--; // After shift, check this number again.
   } else
    lyxerr.print(_("Missing number for -dbg switch!"));
  }
  // Check for "-sysdir"
  else if (arg == "-sysdir") {
   if (i+1 < *argc) {
    system_lyxdir = argv[i+1];

    // Now, remove these two arguments by shifting
    // the following two places down.
    (*argc) -= 2;
    for (int j=i; j < (*argc); j++)
     argv[j] = argv[j+2];
    i--; // After shift, check this number again.
   } else
    lyxerr.print(_("Missing directory for -sysdir switch!"));
  // Check for --help or -help
  } else if (arg == "--help" || arg == "-help") {
   commandLineHelp();
   exit(0);
  }
  // Check for "-nw": No window
  else if (arg == "-nw") {
   gui = false;
  }
}
return gui;
}

void error_handler(int err_sig)
{
switch (err_sig) {
case SIGHUP:
  fprintf(stderr, "\nlyx: SIGHUP signal caught\n");
  break;
case SIGINT:
  // no comments
  break;
case SIGFPE:
  fprintf(stderr, "\nlyx: SIGFPE signal caught\n");
  break;
case SIGSEGV:
  fprintf(stderr, "\nlyx: SIGSEGV signal caught\n");
  fprintf(stderr,
   "Sorry, you have found a bug in LyX."
   " If possible, please read 'Known bugs'\n"
   "under the Help menu and then send us "
   "a full bug report. Thanks!\n");
  break;
case SIGTERM:
  // no comments
  break;
}

// Deinstall the signal handlers
signal(SIGHUP, SIG_DFL);
signal(SIGINT, SIG_DFL);
signal(SIGFPE, SIG_DFL);
signal(SIGSEGV, SIG_DFL);
signal(SIGTERM, SIG_DFL);

bufferlist.emergencyWriteAll();

lyxerr.print("Bye.");
if(err_sig!=SIGHUP && (getenv("LYXDEBUG") || err_sig == SIGSEGV))
  abort();
exit(0);
}

quality99%

¤ Dauer der Verarbeitung: 0.15 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.