src/main.c

/* vi:set ts=8 sts=4 sw=4:
 *
 * VIM - Vi IMproved	by Bram Moolenaar
 *
 * Do ":help uganda"  in Vim to read copying and usage conditions.
 * Do ":help credits" in Vim to see a list of people who contributed.
 * See README.txt for an overview of the Vim source code.
 */

#define EXTERN
#include "vim.h"

#ifdef SPAWNO
# include <spawno.h>		/* special MS-DOS swapping library */
#endif

#ifdef __CYGWIN__
# ifndef WIN32
#  include <cygwin/version.h>
#  include <sys/cygwin.h>	/* for cygwin_conv_to_posix_path() and/or
				 * cygwin_conv_path() */
# endif
# include <limits.h>
#endif

/* Maximum number of commands from + or -c arguments. */
#define MAX_ARG_CMDS 10

/* values for "window_layout" */
#define WIN_HOR	    1	    /* "-o" horizontally split windows */
#define	WIN_VER	    2	    /* "-O" vertically split windows */
#define	WIN_TABS    3	    /* "-p" windows on tab pages */

/* Struct for various parameters passed between main() and other functions. */
typedef struct
{
    int		argc;
    char	**argv;

    int		evim_mode;		/* started as "evim" */
    char_u	*use_vimrc;		/* vimrc from -u argument */

    int		n_commands;		     /* no. of commands from + or -c */
    char_u	*commands[MAX_ARG_CMDS];     /* commands from + or -c arg. */
    char_u	cmds_tofree[MAX_ARG_CMDS];   /* commands that need free() */
    int		n_pre_commands;		     /* no. of commands from --cmd */
    char_u	*pre_commands[MAX_ARG_CMDS]; /* commands from --cmd argument */

    int		edit_type;		/* type of editing to do */
    char_u	*tagname;		/* tag from -t argument */
#ifdef FEAT_QUICKFIX
    char_u	*use_ef;		/* 'errorfile' from -q argument */
#endif

    int		want_full_screen;
    int		stdout_isatty;		/* is stdout a terminal? */
    char_u	*term;			/* specified terminal name */
#ifdef FEAT_CRYPT
    int		ask_for_key;		/* -x argument */
#endif
    int		no_swap_file;		/* "-n" argument used */
#ifdef FEAT_EVAL
    int		use_debug_break_level;
#endif
#ifdef FEAT_WINDOWS
    int		window_count;		/* number of windows to use */
    int		window_layout;		/* 0, WIN_HOR, WIN_VER or WIN_TABS */
#endif

#ifdef FEAT_CLIENTSERVER
    int		serverArg;		/* TRUE when argument for a server */
    char_u	*serverName_arg;	/* cmdline arg for server name */
    char_u	*serverStr;		/* remote server command */
    char_u	*serverStrEnc;		/* encoding of serverStr */
    char_u	*servername;		/* allocated name for our server */
#endif
#if (!defined(UNIX) && !defined(__EMX__)) || defined(ARCHIE)
    int		literal;		/* don't expand file names */
#endif
#ifdef MSWIN
    int		full_path;		/* file name argument was full path */
#endif
#ifdef FEAT_DIFF
    int		diff_mode;		/* start with 'diff' set */
#endif
} mparm_T;

/* Values for edit_type. */
#define EDIT_NONE   0	    /* no edit type yet */
#define EDIT_FILE   1	    /* file name argument[s] given, use argument list */
#define EDIT_STDIN  2	    /* read file from stdin */
#define EDIT_TAG    3	    /* tag name argument given, use tagname */
#define EDIT_QF	    4	    /* start in quickfix mode */

#if (defined(UNIX) || defined(VMS)) && !defined(NO_VIM_MAIN)
static int file_owned __ARGS((char *fname));
#endif
static void mainerr __ARGS((int, char_u *));
#ifndef NO_VIM_MAIN
static void main_msg __ARGS((char *s));
static void usage __ARGS((void));
static int get_number_arg __ARGS((char_u *p, int *idx, int def));
# if defined(HAVE_LOCALE_H) || defined(X_LOCALE)
static void init_locale __ARGS((void));
# endif
static void parse_command_name __ARGS((mparm_T *parmp));
static void early_arg_scan __ARGS((mparm_T *parmp));
static void command_line_scan __ARGS((mparm_T *parmp));
static void check_tty __ARGS((mparm_T *parmp));
static void read_stdin __ARGS((void));
static void create_windows __ARGS((mparm_T *parmp));
# ifdef FEAT_WINDOWS
static void edit_buffers __ARGS((mparm_T *parmp));
# endif
static void exe_pre_commands __ARGS((mparm_T *parmp));
static void exe_commands __ARGS((mparm_T *parmp));
static void source_startup_scripts __ARGS((mparm_T *parmp));
static void main_start_gui __ARGS((void));
# if defined(HAS_SWAP_EXISTS_ACTION)
static void check_swap_exists_action __ARGS((void));
# endif
# if defined(FEAT_CLIENTSERVER) || defined(PROTO)
static void exec_on_server __ARGS((mparm_T *parmp));
static void prepare_server __ARGS((mparm_T *parmp));
static void cmdsrv_main __ARGS((int *argc, char **argv, char_u *serverName_arg, char_u **serverStr));
static char_u *serverMakeName __ARGS((char_u *arg, char *cmd));
# endif
#endif


/*
 * Different types of error messages.
 */
static char *(main_errors[]) =
{
    N_("Unknown option argument"),
#define ME_UNKNOWN_OPTION	0
    N_("Too many edit arguments"),
#define ME_TOO_MANY_ARGS	1
    N_("Argument missing after"),
#define ME_ARG_MISSING		2
    N_("Garbage after option argument"),
#define ME_GARBAGE		3
    N_("Too many \"+command\", \"-c command\" or \"--cmd command\" arguments"),
#define ME_EXTRA_CMD		4
    N_("Invalid argument for"),
#define ME_INVALID_ARG		5
};

#ifndef PROTO		/* don't want a prototype for main() */
#ifndef NO_VIM_MAIN	/* skip this for unittests */
    int
# ifdef VIMDLL
_export
# endif
# ifdef FEAT_GUI_MSWIN
#  ifdef __BORLANDC__
_cdecl
#  endif
VimMain
# else
main
# endif
(argc, argv)
    int		argc;
    char	**argv;
{
    char_u	*fname = NULL;		/* file name from command line */
    mparm_T	params;			/* various parameters passed between
					 * main() and other functions. */
#ifdef STARTUPTIME
    int		i;
#endif

    /*
     * Do any system-specific initialisations.  These can NOT use IObuff or
     * NameBuff.  Thus emsg2() cannot be called!
     */
    mch_early_init();

#if defined(WIN32) && defined(FEAT_MBYTE)
    /*
     * MingW expands command line arguments, which confuses our code to
     * convert when 'encoding' changes.  Get the unexpanded arguments.
     */
    argc = get_cmd_argsW(&argv);
#endif

    /* Many variables are in "params" so that we can pass them to invoked
     * functions without a lot of arguments.  "argc" and "argv" are also
     * copied, so that they can be changed. */
    vim_memset(&params, 0, sizeof(params));
    params.argc = argc;
    params.argv = argv;
    params.want_full_screen = TRUE;
#ifdef FEAT_EVAL
    params.use_debug_break_level = -1;
#endif
#ifdef FEAT_WINDOWS
    params.window_count = -1;
#endif

#ifdef FEAT_RUBY
    {
	int ruby_stack_start;
	vim_ruby_init((void *)&ruby_stack_start);
    }
#endif

#ifdef FEAT_TCL
    vim_tcl_init(params.argv[0]);
#endif

#ifdef MEM_PROFILE
    atexit(vim_mem_profile_dump);
#endif

#ifdef STARTUPTIME
    for (i = 1; i < argc; ++i)
    {
	if (STRICMP(argv[i], "--startuptime") == 0 && i + 1 < argc)
	{
	    time_fd = mch_fopen(argv[i + 1], "a");
	    TIME_MSG("--- VIM STARTING ---");
	    break;
	}
    }
#endif
    starttime = time(NULL);

#ifdef __EMX__
    _wildcard(&params.argc, &params.argv);
#endif

#ifdef FEAT_MBYTE
    (void)mb_init();	/* init mb_bytelen_tab[] to ones */
#endif
#ifdef FEAT_EVAL
    eval_init();	/* init global variables */
#endif

#ifdef __QNXNTO__
    qnx_init();		/* PhAttach() for clipboard, (and gui) */
#endif

#ifdef MAC_OS_CLASSIC
    /* Prepare for possibly starting GUI sometime */
    /* Macintosh needs this before any memory is allocated. */
    gui_prepare(&params.argc, params.argv);
    TIME_MSG("GUI prepared");
#endif

    /* Init the table of Normal mode commands. */
    init_normal_cmds();

#if defined(HAVE_DATE_TIME) && defined(VMS) && defined(VAXC)
    make_version();	/* Construct the long version string. */
#endif

    /*
     * Allocate space for the generic buffers (needed for set_init_1() and
     * EMSG2()).
     */
    if ((IObuff = alloc(IOSIZE)) == NULL
	    || (NameBuff = alloc(MAXPATHL)) == NULL)
	mch_exit(0);
    TIME_MSG("Allocated generic buffers");

#ifdef NBDEBUG
    /* Wait a moment for debugging NetBeans.  Must be after allocating
     * NameBuff. */
    nbdebug_log_init("SPRO_GVIM_DEBUG", "SPRO_GVIM_DLEVEL");
    nbdebug_wait(WT_ENV | WT_WAIT | WT_STOP, "SPRO_GVIM_WAIT", 20);
    TIME_MSG("NetBeans debug wait");
#endif

#if defined(HAVE_LOCALE_H) || defined(X_LOCALE)
    /*
     * Setup to use the current locale (for ctype() and many other things).
     * NOTE: Translated messages with encodings other than latin1 will not
     * work until set_init_1() has been called!
     */
    init_locale();
    TIME_MSG("locale set");
#endif

#ifdef FEAT_GUI
    gui.dofork = TRUE;		    /* default is to use fork() */
#endif

    /*
     * Do a first scan of the arguments in "argv[]":
     *   -display or --display
     *   --server...
     *   --socketid
     *   --windowid
     */
    early_arg_scan(&params);

#ifdef FEAT_SUN_WORKSHOP
    findYourself(params.argv[0]);
#endif
#if defined(FEAT_GUI) && !defined(MAC_OS_CLASSIC)
    /* Prepare for possibly starting GUI sometime */
    gui_prepare(&params.argc, params.argv);
    TIME_MSG("GUI prepared");
#endif

#ifdef FEAT_CLIPBOARD
    clip_init(FALSE);		/* Initialise clipboard stuff */
    TIME_MSG("clipboard setup");
#endif

    /*
     * Check if we have an interactive window.
     * On the Amiga: If there is no window, we open one with a newcli command
     * (needed for :! to * work). mch_check_win() will also handle the -d or
     * -dev argument.
     */
    params.stdout_isatty = (mch_check_win(params.argc, params.argv) != FAIL);
    TIME_MSG("window checked");

    /*
     * Allocate the first window and buffer.
     * Can't do anything without it, exit when it fails.
     */
    if (win_alloc_first() == FAIL)
	mch_exit(0);

    init_yank();		/* init yank buffers */

    alist_init(&global_alist);	/* Init the argument list to empty. */
    global_alist.id = 0;

    /*
     * Set the default values for the options.
     * NOTE: Non-latin1 translated messages are working only after this,
     * because this is where "has_mbyte" will be set, which is used by
     * msg_outtrans_len_attr().
     * First find out the home directory, needed to expand "~" in options.
     */
    init_homedir();		/* find real value of $HOME */
    set_init_1();
    TIME_MSG("inits 1");

#ifdef FEAT_EVAL
    set_lang_var();		/* set v:lang and v:ctype */
#endif

#ifdef FEAT_CLIENTSERVER
    /*
     * Do the client-server stuff, unless "--servername ''" was used.
     * This may exit Vim if the command was sent to the server.
     */
    exec_on_server(&params);
#endif

    /*
     * Figure out the way to work from the command name argv[0].
     * "vimdiff" starts diff mode, "rvim" sets "restricted", etc.
     */
    parse_command_name(&params);

    /*
     * Process the command line arguments.  File names are put in the global
     * argument list "global_alist".
     */
    command_line_scan(&params);
    TIME_MSG("parsing arguments");

    /*
     * On some systems, when we compile with the GUI, we always use it.  On Mac
     * there is no terminal version, and on Windows we can't fork one off with
     * :gui.
     */
#ifdef ALWAYS_USE_GUI
    gui.starting = TRUE;
#else
# if defined(FEAT_GUI_X11) || defined(FEAT_GUI_GTK)
    /*
     * Check if the GUI can be started.  Reset gui.starting if not.
     * Don't know about other systems, stay on the safe side and don't check.
     */
    if (gui.starting)
    {
	if (gui_init_check() == FAIL)
	{
	    gui.starting = FALSE;

	    /* When running "evim" or "gvim -y" we need the menus, exit if we
	     * don't have them. */
	    if (params.evim_mode)
		mch_exit(1);
	}
    }
# endif
#endif

    if (GARGCOUNT > 0)
    {
#if (!defined(UNIX) && !defined(__EMX__)) || defined(ARCHIE)
	/*
	 * Expand wildcards in file names.
	 */
	if (!params.literal)
	{
	    /* Temporarily add '(' and ')' to 'isfname'.  These are valid
	     * filename characters but are excluded from 'isfname' to make
	     * "gf" work on a file name in parenthesis (e.g.: see vim.h). */
	    do_cmdline_cmd((char_u *)":set isf+=(,)");
	    alist_expand(NULL, 0);
	    do_cmdline_cmd((char_u *)":set isf&");
	}
#endif
	fname = alist_name(&GARGLIST[0]);
    }

#if defined(WIN32) && defined(FEAT_MBYTE)
    {
	extern void set_alist_count(void);

	/* Remember the number of entries in the argument list.  If it changes
	 * we don't react on setting 'encoding'. */
	set_alist_count();
    }
#endif

#ifdef MSWIN
    if (GARGCOUNT == 1 && params.full_path)
    {
	/*
	 * If there is one filename, fully qualified, we have very probably
	 * been invoked from explorer, so change to the file's directory.
	 * Hint: to avoid this when typing a command use a forward slash.
	 * If the cd fails, it doesn't matter.
	 */
	(void)vim_chdirfile(fname);
    }
#endif
    TIME_MSG("expanding arguments");

#ifdef FEAT_DIFF
    if (params.diff_mode && params.window_count == -1)
	params.window_count = 0;	/* open up to 3 windows */
#endif

    /* Don't redraw until much later. */
    ++RedrawingDisabled;

    /*
     * When listing swap file names, don't do cursor positioning et. al.
     */
    if (recoverymode && fname == NULL)
	params.want_full_screen = FALSE;

    /*
     * When certain to start the GUI, don't check capabilities of terminal.
     * For GTK we can't be sure, but when started from the desktop it doesn't
     * make sense to try using a terminal.
     */
#if defined(ALWAYS_USE_GUI) || defined(FEAT_GUI_X11) || defined(FEAT_GUI_GTK)
    if (gui.starting
# ifdef FEAT_GUI_GTK
	    && !isatty(2)
# endif
	    )
	params.want_full_screen = FALSE;
#endif

#if defined(FEAT_GUI_MAC) && defined(MACOS_X_UNIX)
    /* When the GUI is started from Finder, need to display messages in a
     * message box.  isatty(2) returns TRUE anyway, thus we need to check the
     * name to know we're not started from a terminal. */
    if (gui.starting && (!isatty(2) || strcmp("/dev/console", ttyname(2)) == 0))
    {
	params.want_full_screen = FALSE;

	/* Avoid always using "/" as the current directory.  Note that when
	 * started from Finder the arglist will be filled later in
	 * HandleODocAE() and "fname" will be NULL. */
	if (getcwd((char *)NameBuff, MAXPATHL) != NULL
						&& STRCMP(NameBuff, "/") == 0)
	{
	    if (fname != NULL)
		(void)vim_chdirfile(fname);
	    else
	    {
		expand_env((char_u *)"$HOME", NameBuff, MAXPATHL);
		vim_chdir(NameBuff);
	    }
	}
    }
#endif

    /*
     * mch_init() sets up the terminal (window) for use.  This must be
     * done after resetting full_screen, otherwise it may move the cursor
     * (MSDOS).
     * Note that we may use mch_exit() before mch_init()!
     */
    mch_init();
    TIME_MSG("shell init");

#ifdef USE_XSMP
    /*
     * For want of anywhere else to do it, try to connect to xsmp here.
     * Fitting it in after gui_mch_init, but before gui_init (via termcapinit).
     * Hijacking -X 'no X connection' to also disable XSMP connection as that
     * has a similar delay upon failure.
     * Only try if SESSION_MANAGER is set to something non-null.
     */
    if (!x_no_connect)
    {
	char *p = getenv("SESSION_MANAGER");

	if (p != NULL && *p != NUL)
	{
	    xsmp_init();
	    TIME_MSG("xsmp init");
	}
    }
#endif

    /*
     * Print a warning if stdout is not a terminal.
     */
    check_tty(&params);

    /* This message comes before term inits, but after setting "silent_mode"
     * when the input is not a tty. */
    if (GARGCOUNT > 1 && !silent_mode)
	printf(_("%d files to edit\n"), GARGCOUNT);

    if (params.want_full_screen && !silent_mode)
    {
	termcapinit(params.term);	/* set terminal name and get terminal
				   capabilities (will set full_screen) */
	screen_start();		/* don't know where cursor is now */
	TIME_MSG("Termcap init");
    }

    /*
     * Set the default values for the options that use Rows and Columns.
     */
    ui_get_shellsize();		/* inits Rows and Columns */
    win_init_size();
#ifdef FEAT_DIFF
    /* Set the 'diff' option now, so that it can be checked for in a .vimrc
     * file.  There is no buffer yet though. */
    if (params.diff_mode)
	diff_win_options(firstwin, FALSE);
#endif

    cmdline_row = Rows - p_ch;
    msg_row = cmdline_row;
    screenalloc(FALSE);		/* allocate screen buffers */
    set_init_2();
    TIME_MSG("inits 2");

    msg_scroll = TRUE;
    no_wait_return = TRUE;

    init_mappings();		/* set up initial mappings */

    init_highlight(TRUE, FALSE); /* set the default highlight groups */
    TIME_MSG("init highlight");

#ifdef FEAT_EVAL
    /* Set the break level after the terminal is initialized. */
    debug_break_level = params.use_debug_break_level;
#endif

#ifdef FEAT_MZSCHEME
    /*
     * Newer version of MzScheme (Racket) require earlier (trampolined)
     * initialisation via scheme_main_setup.
     * Implement this by initialising it as early as possible
     * and splitting off remaining Vim main into vim_main2
     */
    {
	/* Pack up preprocessed command line arguments.
	 * It is safe because Scheme does not access argc/argv. */
	char *args[2];
	args[0] = (char *)fname;
	args[1] = (char *)&params;
	return mzscheme_main(2, args);
    }
}
#endif
#endif /* NO_VIM_MAIN */

/* vim_main2() needs to be produced when FEAT_MZSCHEME is defined even when
 * NO_VIM_MAIN is defined. */
#ifdef FEAT_MZSCHEME
    int
vim_main2(int argc UNUSED, char **argv UNUSED)
{
# ifndef NO_VIM_MAIN
    char_u	*fname = (char_u *)argv[0];
    mparm_T	params;

    memcpy(&params, argv[1], sizeof(params));
# else
    return 0;
}
# endif
#endif

#ifndef NO_VIM_MAIN
    /* Execute --cmd arguments. */
    exe_pre_commands(&params);

    /* Source startup scripts. */
    source_startup_scripts(&params);

#ifdef FEAT_EVAL
    /*
     * Read all the plugin files.
     * Only when compiled with +eval, since most plugins need it.
     */
    if (p_lpl)
    {
# ifdef VMS	/* Somehow VMS doesn't handle the "**". */
	source_runtime((char_u *)"plugin/*.vim", TRUE);
# else
	source_runtime((char_u *)"plugin/**/*.vim", TRUE);
# endif
	TIME_MSG("loading plugins");
    }
#endif

#ifdef FEAT_DIFF
    /* Decide about window layout for diff mode after reading vimrc. */
    if (params.diff_mode && params.window_layout == 0)
    {
	if (diffopt_horizontal())
	    params.window_layout = WIN_HOR;	/* use horizontal split */
	else
	    params.window_layout = WIN_VER;	/* use vertical split */
    }
#endif

    /*
     * Recovery mode without a file name: List swap files.
     * This uses the 'dir' option, therefore it must be after the
     * initializations.
     */
    if (recoverymode && fname == NULL)
    {
	recover_names(NULL, TRUE, 0, NULL);
	mch_exit(0);
    }

    /*
     * Set a few option defaults after reading .vimrc files:
     * 'title' and 'icon', Unix: 'shellpipe' and 'shellredir'.
     */
    set_init_3();
    TIME_MSG("inits 3");

    /*
     * "-n" argument: Disable swap file by setting 'updatecount' to 0.
     * Note that this overrides anything from a vimrc file.
     */
    if (params.no_swap_file)
	p_uc = 0;

#ifdef FEAT_FKMAP
    if (curwin->w_p_rl && p_altkeymap)
    {
	p_hkmap = FALSE;	/* Reset the Hebrew keymap mode */
# ifdef FEAT_ARABIC
	curwin->w_p_arab = FALSE; /* Reset the Arabic keymap mode */
# endif
	p_fkmap = TRUE;		/* Set the Farsi keymap mode */
    }
#endif

#ifdef FEAT_GUI
    if (gui.starting)
    {
#if defined(UNIX) || defined(VMS)
	/* When something caused a message from a vimrc script, need to output
	 * an extra newline before the shell prompt. */
	if (did_emsg || msg_didout)
	    putchar('\n');
#endif

	gui_start();		/* will set full_screen to TRUE */
	TIME_MSG("starting GUI");

	/* When running "evim" or "gvim -y" we need the menus, exit if we
	 * don't have them. */
	if (!gui.in_use && params.evim_mode)
	    mch_exit(1);
    }
#endif

#ifdef SPAWNO		/* special MSDOS swapping library */
    init_SPAWNO("", SWAP_ANY);
#endif

#ifdef FEAT_VIMINFO
    /*
     * Read in registers, history etc, but not marks, from the viminfo file.
     * This is where v:oldfiles gets filled.
     */
    if (*p_viminfo != NUL)
    {
	read_viminfo(NULL, VIF_WANT_INFO | VIF_GET_OLDFILES);
	TIME_MSG("reading viminfo");
    }
#endif
#ifdef FEAT_EVAL
    /* It's better to make v:oldfiles an empty list than NULL. */
    if (get_vim_var_list(VV_OLDFILES) == NULL)
	set_vim_var_list(VV_OLDFILES, list_alloc());
#endif

#ifdef FEAT_QUICKFIX
    /*
     * "-q errorfile": Load the error file now.
     * If the error file can't be read, exit before doing anything else.
     */
    if (params.edit_type == EDIT_QF)
    {
	if (params.use_ef != NULL)
	    set_string_option_direct((char_u *)"ef", -1,
					   params.use_ef, OPT_FREE, SID_CARG);
	vim_snprintf((char *)IObuff, IOSIZE, "cfile %s", p_ef);
	if (qf_init(NULL, p_ef, p_efm, TRUE, IObuff) < 0)
	{
	    out_char('\n');
	    mch_exit(3);
	}
	TIME_MSG("reading errorfile");
    }
#endif

    /*
     * Start putting things on the screen.
     * Scroll screen down before drawing over it
     * Clear screen now, so file message will not be cleared.
     */
    starting = NO_BUFFERS;
    no_wait_return = FALSE;
    if (!exmode_active)
	msg_scroll = FALSE;

#ifdef FEAT_GUI
    /*
     * This seems to be required to make callbacks to be called now, instead
     * of after things have been put on the screen, which then may be deleted
     * when getting a resize callback.
     * For the Mac this handles putting files dropped on the Vim icon to
     * global_alist.
     */
    if (gui.in_use)
    {
# ifdef FEAT_SUN_WORKSHOP
	if (!usingSunWorkShop)
# endif
	    gui_wait_for_chars(50L);
	TIME_MSG("GUI delay");
    }
#endif

#if defined(FEAT_GUI_PHOTON) && defined(FEAT_CLIPBOARD)
    qnx_clip_init();
#endif

#if defined(MACOS_X) && defined(FEAT_CLIPBOARD)
    clip_init(TRUE);
#endif

#ifdef FEAT_XCLIPBOARD
    /* Start using the X clipboard, unless the GUI was started. */
# ifdef FEAT_GUI
    if (!gui.in_use)
# endif
    {
	setup_term_clip();
	TIME_MSG("setup clipboard");
    }
#endif

#ifdef FEAT_CLIENTSERVER
    /* Prepare for being a Vim server. */
    prepare_server(&params);
#endif

    /*
     * If "-" argument given: Read file from stdin.
     * Do this before starting Raw mode, because it may change things that the
     * writing end of the pipe doesn't like, e.g., in case stdin and stderr
     * are the same terminal: "cat | vim -".
     * Using autocommands here may cause trouble...
     */
    if (params.edit_type == EDIT_STDIN && !recoverymode)
	read_stdin();

#if defined(UNIX) || defined(VMS)
    /* When switching screens and something caused a message from a vimrc
     * script, need to output an extra newline on exit. */
    if ((did_emsg || msg_didout) && *T_TI != NUL)
	newline_on_exit = TRUE;
#endif

    /*
     * When done something that is not allowed or error message call
     * wait_return.  This must be done before starttermcap(), because it may
     * switch to another screen. It must be done after settmode(TMODE_RAW),
     * because we want to react on a single key stroke.
     * Call settmode and starttermcap here, so the T_KS and T_TI may be
     * defined by termcapinit and redefined in .exrc.
     */
    settmode(TMODE_RAW);
    TIME_MSG("setting raw mode");

    if (need_wait_return || msg_didany)
    {
	wait_return(TRUE);
	TIME_MSG("waiting for return");
    }

    starttermcap();	    /* start termcap if not done by wait_return() */
    TIME_MSG("start termcap");
#if defined(FEAT_TERMRESPONSE) && defined(FEAT_MBYTE)
    may_req_ambiguous_char_width();
#endif

#ifdef FEAT_MOUSE
    setmouse();				/* may start using the mouse */
#endif
    if (scroll_region)
	scroll_region_reset();		/* In case Rows changed */
    scroll_start();	/* may scroll the screen to the right position */

    /*
     * Don't clear the screen when starting in Ex mode, unless using the GUI.
     */
    if (exmode_active
#ifdef FEAT_GUI
			&& !gui.in_use
#endif
					)
	must_redraw = CLEAR;
    else
    {
	screenclear();			/* clear screen */
	TIME_MSG("clearing screen");
    }

#ifdef FEAT_CRYPT
    if (params.ask_for_key)
    {
	(void)crypt_get_key(TRUE, TRUE);
	TIME_MSG("getting crypt key");
    }
#endif

    no_wait_return = TRUE;

    /*
     * Create the requested number of windows and edit buffers in them.
     * Also does recovery if "recoverymode" set.
     */
    create_windows(&params);
    TIME_MSG("opening buffers");

#ifdef FEAT_EVAL
    /* clear v:swapcommand */
    set_vim_var_string(VV_SWAPCOMMAND, NULL, -1);
#endif

    /* Ex starts at last line of the file */
    if (exmode_active)
	curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;

#ifdef FEAT_AUTOCMD
    apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf);
    TIME_MSG("BufEnter autocommands");
#endif
    setpcmark();

#ifdef FEAT_QUICKFIX
    /*
     * When started with "-q errorfile" jump to first error now.
     */
    if (params.edit_type == EDIT_QF)
    {
	qf_jump(NULL, 0, 0, FALSE);
	TIME_MSG("jump to first error");
    }
#endif

#ifdef FEAT_WINDOWS
    /*
     * If opened more than one window, start editing files in the other
     * windows.
     */
    edit_buffers(&params);
#endif

#ifdef FEAT_DIFF
    if (params.diff_mode)
    {
	win_T	*wp;

	/* set options in each window for "vimdiff". */
	for (wp = firstwin; wp != NULL; wp = wp->w_next)
	    diff_win_options(wp, TRUE);
    }
#endif

    /*
     * Shorten any of the filenames, but only when absolute.
     */
    shorten_fnames(FALSE);

    /*
     * Need to jump to the tag before executing the '-c command'.
     * Makes "vim -c '/return' -t main" work.
     */
    if (params.tagname != NULL)
    {
#if defined(HAS_SWAP_EXISTS_ACTION)
	swap_exists_did_quit = FALSE;
#endif

	vim_snprintf((char *)IObuff, IOSIZE, "ta %s", params.tagname);
	do_cmdline_cmd(IObuff);
	TIME_MSG("jumping to tag");

#if defined(HAS_SWAP_EXISTS_ACTION)
	/* If the user doesn't want to edit the file then we quit here. */
	if (swap_exists_did_quit)
	    getout(1);
#endif
    }

    /* Execute any "+", "-c" and "-S" arguments. */
    if (params.n_commands > 0)
	exe_commands(&params);

    RedrawingDisabled = 0;
    redraw_all_later(NOT_VALID);
    no_wait_return = FALSE;
    starting = 0;

#ifdef FEAT_TERMRESPONSE
    /* Requesting the termresponse is postponed until here, so that a "-c q"
     * argument doesn't make it appear in the shell Vim was started from. */
    may_req_termresponse();
#endif

    /* start in insert mode */
    if (p_im)
	need_start_insertmode = TRUE;

#ifdef FEAT_CLIPBOARD
    if (clip_unnamed)
       /* do not overwrite system clipboard while starting up */
       clip_did_set_selection = -1;
#endif
#ifdef FEAT_AUTOCMD
    apply_autocmds(EVENT_VIMENTER, NULL, NULL, FALSE, curbuf);
# ifdef FEAT_CLIPBOARD
    if (clip_did_set_selection < 0)
       clip_did_set_selection = TRUE;
# endif
    TIME_MSG("VimEnter autocommands");
#endif

#if defined(FEAT_EVAL) && defined(FEAT_CLIPBOARD)
    /* Adjust default register name for "unnamed" in 'clipboard'. Can only be
     * done after the clipboard is available and all initial commands that may
     * modify the 'clipboard' setting have run; i.e. just before entering the
     * main loop. */
    {
	int default_regname = 0;
	adjust_clip_reg(&default_regname);
	set_reg_var(default_regname);
    }
#endif

#if defined(FEAT_DIFF) && defined(FEAT_SCROLLBIND)
    /* When a startup script or session file setup for diff'ing and
     * scrollbind, sync the scrollbind now. */
    if (curwin->w_p_diff && curwin->w_p_scb)
    {
	update_topline();
	check_scrollbind((linenr_T)0, 0L);
	TIME_MSG("diff scrollbinding");
    }
#endif

#if defined(WIN3264) && !defined(FEAT_GUI_W32)
    mch_set_winsize_now();	    /* Allow winsize changes from now on */
#endif

#if defined(FEAT_GUI) && defined(FEAT_WINDOWS)
    /* When tab pages were created, may need to update the tab pages line and
     * scrollbars.  This is skipped while creating them. */
    if (first_tabpage->tp_next != NULL)
    {
	out_flush();
	gui_init_which_components(NULL);
	gui_update_scrollbars(TRUE);
    }
    need_mouse_correct = TRUE;
#endif

    /* If ":startinsert" command used, stuff a dummy command to be able to
     * call normal_cmd(), which will then start Insert mode. */
    if (restart_edit != 0)
	stuffcharReadbuff(K_NOP);

#ifdef FEAT_NETBEANS_INTG
    if (netbeansArg != NULL && strncmp("-nb", netbeansArg, 3) == 0)
    {
# ifdef FEAT_GUI
#  if !defined(FEAT_GUI_X11) && !defined(FEAT_GUI_GTK)  \
		&& !defined(FEAT_GUI_W32)
	if (gui.in_use)
	{
	    mch_errmsg(_("netbeans is not supported with this GUI\n"));
	    mch_exit(2);
	}
#  endif
# endif
	/* Tell the client that it can start sending commands. */
	netbeans_open(netbeansArg + 3, TRUE);
    }
#endif

    TIME_MSG("before starting main loop");

    /*
     * Call the main command loop.  This never returns.
    */
    main_loop(FALSE, FALSE);

    return 0;
}
#endif /* NO_VIM_MAIN */
#endif /* PROTO */

/*
 * Main loop: Execute Normal mode commands until exiting Vim.
 * Also used to handle commands in the command-line window, until the window
 * is closed.
 * Also used to handle ":visual" command after ":global": execute Normal mode
 * commands, return when entering Ex mode.  "noexmode" is TRUE then.
 */
    void
main_loop(cmdwin, noexmode)
    int		cmdwin;	    /* TRUE when working in the command-line window */
    int		noexmode;   /* TRUE when return on entering Ex mode */
{
    oparg_T	oa;				/* operator arguments */
    int		previous_got_int = FALSE;	/* "got_int" was TRUE */
#ifdef FEAT_CONCEAL
    linenr_T	conceal_old_cursor_line = 0;
    linenr_T	conceal_new_cursor_line = 0;
    int		conceal_update_lines = FALSE;
#endif

#if defined(FEAT_X11) && defined(FEAT_XCLIPBOARD)
    /* Setup to catch a terminating error from the X server.  Just ignore
     * it, restore the state and continue.  This might not always work
     * properly, but at least we don't exit unexpectedly when the X server
     * exits while Vim is running in a console. */
    if (!cmdwin && !noexmode && SETJMP(x_jump_env))
    {
	State = NORMAL;
	VIsual_active = FALSE;
	got_int = TRUE;
	need_wait_return = FALSE;
	global_busy = FALSE;
	exmode_active = 0;
	skip_redraw = FALSE;
	RedrawingDisabled = 0;
	no_wait_return = 0;
	vgetc_busy = 0;
# ifdef FEAT_EVAL
	emsg_skip = 0;
# endif
	emsg_off = 0;
# ifdef FEAT_MOUSE
	setmouse();
# endif
	settmode(TMODE_RAW);
	starttermcap();
	scroll_start();
	redraw_later_clear();
    }
#endif

    clear_oparg(&oa);
    while (!cmdwin
#ifdef FEAT_CMDWIN
	    || cmdwin_result == 0
#endif
	    )
    {
	if (stuff_empty())
	{
	    did_check_timestamps = FALSE;
	    if (need_check_timestamps)
		check_timestamps(FALSE);
	    if (need_wait_return)	/* if wait_return still needed ... */
		wait_return(FALSE);	/* ... call it now */
	    if (need_start_insertmode && goto_im() && !VIsual_active)
	    {
		need_start_insertmode = FALSE;
		stuffReadbuff((char_u *)"i");	/* start insert mode next */
		/* skip the fileinfo message now, because it would be shown
		 * after insert mode finishes! */
		need_fileinfo = FALSE;
	    }
	}

	/* Reset "got_int" now that we got back to the main loop.  Except when
	 * inside a ":g/pat/cmd" command, then the "got_int" needs to abort
	 * the ":g" command.
	 * For ":g/pat/vi" we reset "got_int" when used once.  When used
	 * a second time we go back to Ex mode and abort the ":g" command. */
	if (got_int)
	{
	    if (noexmode && global_busy && !exmode_active && previous_got_int)
	    {
		/* Typed two CTRL-C in a row: go back to ex mode as if "Q" was
		 * used and keep "got_int" set, so that it aborts ":g". */
		exmode_active = EXMODE_NORMAL;
		State = NORMAL;
	    }
	    else if (!global_busy || !exmode_active)
	    {
		if (!quit_more)
		    (void)vgetc();		/* flush all buffers */
		got_int = FALSE;
	    }
	    previous_got_int = TRUE;
	}
	else
	    previous_got_int = FALSE;

	if (!exmode_active)
	    msg_scroll = FALSE;
	quit_more = FALSE;

	/*
	 * If skip redraw is set (for ":" in wait_return()), don't redraw now.
	 * If there is nothing in the stuff_buffer or do_redraw is TRUE,
	 * update cursor and redraw.
	 */
	if (skip_redraw || exmode_active)
	    skip_redraw = FALSE;
	else if (do_redraw || stuff_empty())
	{
#if defined(FEAT_AUTOCMD) || defined(FEAT_CONCEAL)
	    /* Trigger CursorMoved if the cursor moved. */
	    if (!finish_op && (
# ifdef FEAT_AUTOCMD
			has_cursormoved()
# endif
# if defined(FEAT_AUTOCMD) && defined(FEAT_CONCEAL)
			||
# endif
# ifdef FEAT_CONCEAL
			curwin->w_p_cole > 0
# endif
			)
		 && !equalpos(last_cursormoved, curwin->w_cursor))
	    {
# ifdef FEAT_AUTOCMD
		if (has_cursormoved())
		    apply_autocmds(EVENT_CURSORMOVED, NULL, NULL,
							       FALSE, curbuf);
# endif
# ifdef FEAT_CONCEAL
		if (curwin->w_p_cole > 0)
		{
		    conceal_old_cursor_line = last_cursormoved.lnum;
		    conceal_new_cursor_line = curwin->w_cursor.lnum;
		    conceal_update_lines = TRUE;
		}
# endif
		last_cursormoved = curwin->w_cursor;
	    }
#endif

#ifdef FEAT_AUTOCMD
	    /* Trigger TextChanged if b_changedtick differs. */
	    if (!finish_op && has_textchanged()
		    && last_changedtick != curbuf->b_changedtick)
	    {
		if (last_changedtick_buf == curbuf)
		    apply_autocmds(EVENT_TEXTCHANGED, NULL, NULL,
							       FALSE, curbuf);
		last_changedtick_buf = curbuf;
		last_changedtick = curbuf->b_changedtick;
	    }
#endif

#if defined(FEAT_DIFF) && defined(FEAT_SCROLLBIND)
	    /* Scroll-binding for diff mode may have been postponed until
	     * here.  Avoids doing it for every change. */
	    if (diff_need_scrollbind)
	    {
		check_scrollbind((linenr_T)0, 0L);
		diff_need_scrollbind = FALSE;
	    }
#endif
#if defined(FEAT_FOLDING)
	    /* Include a closed fold completely in the Visual area. */
	    foldAdjustVisual();
#endif
#ifdef FEAT_FOLDING
	    /*
	     * When 'foldclose' is set, apply 'foldlevel' to folds that don't
	     * contain the cursor.
	     * When 'foldopen' is "all", open the fold(s) under the cursor.
	     * This may mark the window for redrawing.
	     */
	    if (hasAnyFolding(curwin) && !char_avail())
	    {
		foldCheckClose();
		if (fdo_flags & FDO_ALL)
		    foldOpenCursor();
	    }
#endif

	    /*
	     * Before redrawing, make sure w_topline is correct, and w_leftcol
	     * if lines don't wrap, and w_skipcol if lines wrap.
	     */
	    update_topline();
	    validate_cursor();

	    if (VIsual_active)
		update_curbuf(INVERTED);/* update inverted part */
	    else if (must_redraw)
		update_screen(0);
	    else if (redraw_cmdline || clear_cmdline)
		showmode();
#ifdef FEAT_WINDOWS
	    redraw_statuslines();
#endif
#ifdef FEAT_TITLE
	    if (need_maketitle)
		maketitle();
#endif
	    /* display message after redraw */
	    if (keep_msg != NULL)
	    {
		char_u *p;

		/* msg_attr_keep() will set keep_msg to NULL, must free the
		 * string here. Don't reset keep_msg, msg_attr_keep() uses it
		 * to check for duplicates. */
		p = keep_msg;
		msg_attr(p, keep_msg_attr);
		vim_free(p);
	    }
	    if (need_fileinfo)		/* show file info after redraw */
	    {
		fileinfo(FALSE, TRUE, FALSE);
		need_fileinfo = FALSE;
	    }

	    emsg_on_display = FALSE;	/* can delete error message now */
	    did_emsg = FALSE;
	    msg_didany = FALSE;		/* reset lines_left in msg_start() */
	    may_clear_sb_text();	/* clear scroll-back text on next msg */
	    showruler(FALSE);

# if defined(FEAT_CONCEAL)
	    if (conceal_update_lines
		    && (conceal_old_cursor_line != conceal_new_cursor_line
			|| conceal_cursor_line(curwin)
			|| need_cursor_line_redraw))
	    {
		if (conceal_old_cursor_line != conceal_new_cursor_line
			&& conceal_old_cursor_line
						<= curbuf->b_ml.ml_line_count)
		    update_single_line(curwin, conceal_old_cursor_line);
		update_single_line(curwin, conceal_new_cursor_line);
		curwin->w_valid &= ~VALID_CROW;
	    }
# endif
	    setcursor();
	    cursor_on();

	    do_redraw = FALSE;

#ifdef STARTUPTIME
	    /* Now that we have drawn the first screen all the startup stuff
	     * has been done, close any file for startup messages. */
	    if (time_fd != NULL)
	    {
		TIME_MSG("first screen update");
		TIME_MSG("--- VIM STARTED ---");
		fclose(time_fd);
		time_fd = NULL;
	    }
#endif
	}
#ifdef FEAT_GUI
	if (need_mouse_correct)
	    gui_mouse_correct();
#endif

	/*
	 * Update w_curswant if w_set_curswant has been set.
	 * Postponed until here to avoid computing w_virtcol too often.
	 */
	update_curswant();

#ifdef FEAT_EVAL
	/*
	 * May perform garbage collection when waiting for a character, but
	 * only at the very toplevel.  Otherwise we may be using a List or
	 * Dict internally somewhere.
	 * "may_garbage_collect" is reset in vgetc() which is invoked through
	 * do_exmode() and normal_cmd().
	 */
	may_garbage_collect = (!cmdwin && !noexmode);
#endif
	/*
	 * If we're invoked as ex, do a round of ex commands.
	 * Otherwise, get and execute a normal mode command.
	 */
	if (exmode_active)
	{
	    if (noexmode)   /* End of ":global/path/visual" commands */
		return;
	    do_exmode(exmode_active == EXMODE_VIM);
	}
	else
	    normal_cmd(&oa, TRUE);
    }
}


#if defined(USE_XSMP) || defined(FEAT_GUI_MSWIN) || defined(PROTO)
/*
 * Exit, but leave behind swap files for modified buffers.
 */
    void
getout_preserve_modified(exitval)
    int		exitval;
{
# if defined(SIGHUP) && defined(SIG_IGN)
    /* Ignore SIGHUP, because a dropped connection causes a read error, which
     * makes Vim exit and then handling SIGHUP causes various reentrance
     * problems. */
    signal(SIGHUP, SIG_IGN);
# endif

    ml_close_notmod();		    /* close all not-modified buffers */
    ml_sync_all(FALSE, FALSE);	    /* preserve all swap files */
    ml_close_all(FALSE);	    /* close all memfiles, without deleting */
    getout(exitval);		    /* exit Vim properly */
}
#endif


/* Exit properly */
    void
getout(exitval)
    int		exitval;
{
#ifdef FEAT_AUTOCMD
    buf_T	*buf;
    win_T	*wp;
    tabpage_T	*tp, *next_tp;
#endif

    exiting = TRUE;

    /* When running in Ex mode an error causes us to exit with a non-zero exit
     * code.  POSIX requires this, although it's not 100% clear from the
     * standard. */
    if (exmode_active)
	exitval += ex_exitval;

    /* Position the cursor on the last screen line, below all the text */
#ifdef FEAT_GUI
    if (!gui.in_use)
#endif
	windgoto((int)Rows - 1, 0);

#if defined(FEAT_EVAL) || defined(FEAT_SYN_HL)
    /* Optionally print hashtable efficiency. */
    hash_debug_results();
#endif

#ifdef FEAT_GUI
    msg_didany = FALSE;
#endif

#ifdef FEAT_AUTOCMD
    if (get_vim_var_nr(VV_DYING) <= 1)
    {
	/* Trigger BufWinLeave for all windows, but only once per buffer. */
# if defined FEAT_WINDOWS
	for (tp = first_tabpage; tp != NULL; tp = next_tp)
	{
	    next_tp = tp->tp_next;
	    for (wp = (tp == curtab)
		    ? firstwin : tp->tp_firstwin; wp != NULL; wp = wp->w_next)
	    {
		if (wp->w_buffer == NULL)
		    /* Autocmd must have close the buffer already, skip. */
		    continue;
		buf = wp->w_buffer;
		if (buf->b_changedtick != -1)
		{
		    apply_autocmds(EVENT_BUFWINLEAVE, buf->b_fname,
						    buf->b_fname, FALSE, buf);
		    buf->b_changedtick = -1;  /* note that we did it already */
		    /* start all over, autocommands may mess up the lists */
		    next_tp = first_tabpage;
		    break;
		}
	    }
	}
# else
	apply_autocmds(EVENT_BUFWINLEAVE, curbuf, curbuf->b_fname,
							       FALSE, curbuf);
# endif

	/* Trigger BufUnload for buffers that are loaded */
	for (buf = firstbuf; buf != NULL; buf = buf->b_next)
	    if (buf->b_ml.ml_mfp != NULL)
	    {
		apply_autocmds(EVENT_BUFUNLOAD, buf->b_fname, buf->b_fname,
								  FALSE, buf);
		if (!buf_valid(buf))	/* autocmd may delete the buffer */
		    break;
	    }
	apply_autocmds(EVENT_VIMLEAVEPRE, NULL, NULL, FALSE, curbuf);
    }
#endif

#ifdef FEAT_VIMINFO
    if (*p_viminfo != NUL)
	/* Write out the registers, history, marks etc, to the viminfo file */
	write_viminfo(NULL, FALSE);
#endif

#ifdef FEAT_AUTOCMD
    if (get_vim_var_nr(VV_DYING) <= 1)
	apply_autocmds(EVENT_VIMLEAVE, NULL, NULL, FALSE, curbuf);
#endif

#ifdef FEAT_PROFILE
    profile_dump();
#endif

    if (did_emsg
#ifdef FEAT_GUI
	    || (gui.in_use && msg_didany && p_verbose > 0)
#endif
	    )
    {
	/* give the user a chance to read the (error) message */
	no_wait_return = FALSE;
	wait_return(FALSE);
    }

#ifdef FEAT_AUTOCMD
    /* Position the cursor again, the autocommands may have moved it */
# ifdef FEAT_GUI
    if (!gui.in_use)
# endif
	windgoto((int)Rows - 1, 0);
#endif

#ifdef FEAT_LUA
    lua_end();
#endif
#ifdef FEAT_MZSCHEME
    mzscheme_end();
#endif
#ifdef FEAT_TCL
    tcl_end();
#endif
#ifdef FEAT_RUBY
    ruby_end();
#endif
#ifdef FEAT_PYTHON
    python_end();
#endif
#ifdef FEAT_PYTHON3
    python3_end();
#endif
#ifdef FEAT_PERL
    perl_end();
#endif
#if defined(USE_ICONV) && defined(DYNAMIC_ICONV)
    iconv_end();
#endif
#ifdef FEAT_NETBEANS_INTG
    netbeans_end();
#endif
#ifdef FEAT_CSCOPE
    cs_end();
#endif
#ifdef FEAT_EVAL
    if (garbage_collect_at_exit)
	garbage_collect();
#endif
#if defined(WIN32) && defined(FEAT_MBYTE)
    free_cmd_argsW();
#endif

    mch_exit(exitval);
}

#ifndef NO_VIM_MAIN
/*
 * Get a (optional) count for a Vim argument.
 */
    static int
get_number_arg(p, idx, def)
    char_u	*p;	    /* pointer to argument */
    int		*idx;	    /* index in argument, is incremented */
    int		def;	    /* default value */
{
    if (vim_isdigit(p[*idx]))
    {
	def = atoi((char *)&(p[*idx]));
	while (vim_isdigit(p[*idx]))
	    *idx = *idx + 1;
    }
    return def;
}

#if defined(HAVE_LOCALE_H) || defined(X_LOCALE)
/*
 * Setup to use the current locale (for ctype() and many other things).
 */
    static void
init_locale()
{
    setlocale(LC_ALL, "");

# ifdef FEAT_GUI_GTK
    /* Tell Gtk not to change our locale settings. */
    gtk_disable_setlocale();
# endif
# if defined(FEAT_FLOAT) && defined(LC_NUMERIC)
    /* Make sure strtod() uses a decimal point, not a comma. */
    setlocale(LC_NUMERIC, "C");
# endif

# ifdef WIN32
    /* Apparently MS-Windows printf() may cause a crash when we give it 8-bit
     * text while it's expecting text in the current locale.  This call avoids
     * that. */
    setlocale(LC_CTYPE, "C");
# endif

# ifdef FEAT_GETTEXT
    {
	int	mustfree = FALSE;
	char_u	*p;

#  ifdef DYNAMIC_GETTEXT
	/* Initialize the gettext library */
	dyn_libintl_init(NULL);
#  endif
	/* expand_env() doesn't work yet, because chartab[] is not initialized
	 * yet, call vim_getenv() directly */
	p = vim_getenv((char_u *)"VIMRUNTIME", &mustfree);
	if (p != NULL && *p != NUL)
	{
	    vim_snprintf((char *)NameBuff, MAXPATHL, "%s/lang", p);
	    bindtextdomain(VIMPACKAGE, (char *)NameBuff);
	}
	if (mustfree)
	    vim_free(p);
	textdomain(VIMPACKAGE);
    }
# endif
}
#endif

/*
 * Check for: [r][e][g][vi|vim|view][diff][ex[im]]
 * If the executable name starts with "r" we disable shell commands.
 * If the next character is "e" we run in Easy mode.
 * If the next character is "g" we run the GUI version.
 * If the next characters are "view" we start in readonly mode.
 * If the next characters are "diff" or "vimdiff" we start in diff mode.
 * If the next characters are "ex" we start in Ex mode.  If it's followed
 * by "im" use improved Ex mode.
 */
    static void
parse_command_name(parmp)
    mparm_T	*parmp;
{
    char_u	*initstr;

    initstr = gettail((char_u *)parmp->argv[0]);

#ifdef MACOS_X_UNIX
    /* An issue has been seen when launching Vim in such a way that
     * $PWD/$ARGV[0] or $ARGV[0] is not the absolute path to the
     * executable or a symbolic link of it. Until this issue is resolved
     * we prohibit the GUI from being used.
     */
    if (STRCMP(initstr, parmp->argv[0]) == 0)
	disallow_gui = TRUE;

    /* TODO: On MacOS X default to gui if argv[0] ends in:
     *       /Vim.app/Contents/MacOS/Vim */
#endif

#ifdef FEAT_EVAL
    set_vim_var_string(VV_PROGNAME, initstr, -1);
    set_vim_var_string(VV_PROGPATH, (char_u *)parmp->argv[0], -1);
#endif

    if (TOLOWER_ASC(initstr[0]) == 'r')
    {
	restricted = TRUE;
	++initstr;
    }

    /* Use evim mode for "evim" and "egvim", not for "editor". */
    if (TOLOWER_ASC(initstr[0]) == 'e'
	    && (TOLOWER_ASC(initstr[1]) == 'v'
		|| TOLOWER_ASC(initstr[1]) == 'g'))
    {
#ifdef FEAT_GUI
	gui.starting = TRUE;
#endif
	parmp->evim_mode = TRUE;
	++initstr;
    }

    /* "gvim" starts the GUI.  Also accept "Gvim" for MS-Windows. */
    if (TOLOWER_ASC(initstr[0]) == 'g')
    {
	main_start_gui();
#ifdef FEAT_GUI
	++initstr;
#endif
    }

    if (STRNICMP(initstr, "view", 4) == 0)
    {
	readonlymode = TRUE;
	curbuf->b_p_ro = TRUE;
	p_uc = 10000;			/* don't update very often */
	initstr += 4;
    }
    else if (STRNICMP(initstr, "vim", 3) == 0)
	initstr += 3;

    /* Catch "[r][g]vimdiff" and "[r][g]viewdiff". */
    if (STRICMP(initstr, "diff") == 0)
    {
#ifdef FEAT_DIFF
	parmp->diff_mode = TRUE;
#else
	mch_errmsg(_("This Vim was not compiled with the diff feature."));
	mch_errmsg("\n");
	mch_exit(2);
#endif
    }

    if (STRNICMP(initstr, "ex", 2) == 0)
    {
	if (STRNICMP(initstr + 2, "im", 2) == 0)
	    exmode_active = EXMODE_VIM;
	else
	    exmode_active = EXMODE_NORMAL;
	change_compatible(TRUE);	/* set 'compatible' */
    }
}

/*
 * Get the name of the display, before gui_prepare() removes it from
 * argv[].  Used for the xterm-clipboard display.
 *
 * Also find the --server... arguments and --socketid and --windowid
 */
    static void
early_arg_scan(parmp)
    mparm_T	*parmp UNUSED;
{
#if defined(FEAT_XCLIPBOARD) || defined(FEAT_CLIENTSERVER) \
	|| !defined(FEAT_NETBEANS_INTG)
    int		argc = parmp->argc;
    char	**argv = parmp->argv;
    int		i;

    for (i = 1; i < argc; i++)
    {
	if (STRCMP(argv[i], "--") == 0)
	    break;
# ifdef FEAT_XCLIPBOARD
	else if (STRICMP(argv[i], "-display") == 0
#  if defined(FEAT_GUI_GTK)
		|| STRICMP(argv[i], "--display") == 0
#  endif
		)
	{
	    if (i == argc - 1)
		mainerr_arg_missing((char_u *)argv[i]);
	    xterm_display = argv[++i];
	}
# endif
# ifdef FEAT_CLIENTSERVER
	else if (STRICMP(argv[i], "--servername") == 0)
	{
	    if (i == argc - 1)
		mainerr_arg_missing((char_u *)argv[i]);
	    parmp->serverName_arg = (char_u *)argv[++i];
	}
	else if (STRICMP(argv[i], "--serverlist") == 0)
	    parmp->serverArg = TRUE;
	else if (STRNICMP(argv[i], "--remote", 8) == 0)
	{
	    parmp->serverArg = TRUE;
#  ifdef FEAT_GUI
	    if (strstr(argv[i], "-wait") != 0)
		/* don't fork() when starting the GUI to edit files ourself */
		gui.dofork = FALSE;
#  endif
	}
# endif

# if defined(FEAT_GUI_GTK) || defined(FEAT_GUI_W32)
#  ifdef FEAT_GUI_W32
	else if (STRICMP(argv[i], "--windowid") == 0)
#  else
	else if (STRICMP(argv[i], "--socketid") == 0)
#  endif
	{
	    long_u	id;
	    int		count;

	    if (i == argc - 1)
		mainerr_arg_missing((char_u *)argv[i]);
	    if (STRNICMP(argv[i+1], "0x", 2) == 0)
		count = sscanf(&(argv[i + 1][2]), SCANF_HEX_LONG_U, &id);
	    else
		count = sscanf(argv[i + 1], SCANF_DECIMAL_LONG_U, &id);
	    if (count != 1)
		mainerr(ME_INVALID_ARG, (char_u *)argv[i]);
	    else
#  ifdef FEAT_GUI_W32
		win_socket_id = id;
#  else
		gtk_socket_id = id;
#  endif
	    i++;
	}
# endif
# ifdef FEAT_GUI_GTK
	else if (STRICMP(argv[i], "--echo-wid") == 0)
	    echo_wid_arg = TRUE;
# endif
# ifndef FEAT_NETBEANS_INTG
	else if (strncmp(argv[i], "-nb", (size_t)3) == 0)
	{
	    mch_errmsg(_("'-nb' cannot be used: not enabled at compile time\n"));
	    mch_exit(2);
	}
# endif

    }
#endif
}

/*
 * Scan the command line arguments.
 */
    static void
command_line_scan(parmp)
    mparm_T	*parmp;
{
    int		argc = parmp->argc;
    char	**argv = parmp->argv;
    int		argv_idx;		/* index in argv[n][] */
    int		had_minmin = FALSE;	/* found "--" argument */
    int		want_argument;		/* option argument with argument */
    int		c;
    char_u	*p = NULL;
    long	n;

    --argc;
    ++argv;
    argv_idx = 1;	    /* active option letter is argv[0][argv_idx] */
    while (argc > 0)
    {
	/*
	 * "+" or "+{number}" or "+/{pat}" or "+{command}" argument.
	 */
	if (argv[0][0] == '+' && !had_minmin)
	{
	    if (parmp->n_commands >= MAX_ARG_CMDS)
		mainerr(ME_EXTRA_CMD, NULL);
	    argv_idx = -1;	    /* skip to next argument */
	    if (argv[0][1] == NUL)
		parmp->commands[parmp->n_commands++] = (char_u *)"$";
	    else
		parmp->commands[parmp->n_commands++] = (char_u *)&(argv[0][1]);
	}

	/*
	 * Optional argument.
	 */
	else if (argv[0][0] == '-' && !had_minmin)
	{
	    want_argument = FALSE;
	    c = argv[0][argv_idx++];
#ifdef VMS
	    /*
	     * VMS only uses upper case command lines.  Interpret "-X" as "-x"
	     * and "-/X" as "-X".
	     */
	    if (c == '/')
	    {
		c = argv[0][argv_idx++];
		c = TOUPPER_ASC(c);
	    }
	    else
		c = TOLOWER_ASC(c);
#endif
	    switch (c)
	    {
	    case NUL:		/* "vim -"  read from stdin */
				/* "ex -" silent mode */
		if (exmode_active)
		    silent_mode = TRUE;
		else
		{
		    if (parmp->edit_type != EDIT_NONE)
			mainerr(ME_TOO_MANY_ARGS, (char_u *)argv[0]);
		    parmp->edit_type = EDIT_STDIN;
		    read_cmd_fd = 2;	/* read from stderr instead of stdin */
		}
		argv_idx = -1;		/* skip to next argument */
		break;

	    case '-':		/* "--" don't take any more option arguments */
				/* "--help" give help message */
				/* "--version" give version message */
				/* "--literal" take files literally */
				/* "--nofork" don't fork */
				/* "--noplugin[s]" skip plugins */
				/* "--cmd <cmd>" execute cmd before vimrc */
		if (STRICMP(argv[0] + argv_idx, "help") == 0)
		    usage();
		else if (STRICMP(argv[0] + argv_idx, "version") == 0)
		{
		    Columns = 80;	/* need to init Columns */
		    info_message = TRUE; /* use mch_msg(), not mch_errmsg() */
		    list_version();
		    msg_putchar('\n');
		    msg_didout = FALSE;
		    mch_exit(0);
		}
		else if (STRNICMP(argv[0] + argv_idx, "literal", 7) == 0)
		{
#if (!defined(UNIX) && !defined(__EMX__)) || defined(ARCHIE)
		    parmp->literal = TRUE;
#endif
		}
		else if (STRNICMP(argv[0] + argv_idx, "nofork", 6) == 0)
		{
#ifdef FEAT_GUI
		    gui.dofork = FALSE;	/* don't fork() when starting GUI */
#endif
		}
		else if (STRNICMP(argv[0] + argv_idx, "noplugin", 8) == 0)
		    p_lpl = FALSE;
		else if (STRNICMP(argv[0] + argv_idx, "cmd", 3) == 0)
		{
		    want_argument = TRUE;
		    argv_idx += 3;
		}
		else if (STRNICMP(argv[0] + argv_idx, "startuptime", 11) == 0)
		{
		    want_argument = TRUE;
		    argv_idx += 11;
		}
#ifdef FEAT_CLIENTSERVER
		else if (STRNICMP(argv[0] + argv_idx, "serverlist", 10) == 0)
		    ; /* already processed -- no arg */
		else if (STRNICMP(argv[0] + argv_idx, "servername", 10) == 0
		       || STRNICMP(argv[0] + argv_idx, "serversend", 10) == 0)
		{
		    /* already processed -- snatch the following arg */
		    if (argc > 1)
		    {
			--argc;
			++argv;
		    }
		}
#endif
#if defined(FEAT_GUI_GTK) || defined(FEAT_GUI_W32)
# ifdef FEAT_GUI_GTK
		else if (STRNICMP(argv[0] + argv_idx, "socketid", 8) == 0)
# else
		else if (STRNICMP(argv[0] + argv_idx, "windowid", 8) == 0)
# endif
		{
		    /* already processed -- snatch the following arg */
		    if (argc > 1)
		    {
			--argc;
			++argv;
		    }
		}
#endif
#ifdef FEAT_GUI_GTK
		else if (STRNICMP(argv[0] + argv_idx, "echo-wid", 8) == 0)
		{
		    /* already processed, skip */
		}
#endif
		else
		{
		    if (argv[0][argv_idx])
			mainerr(ME_UNKNOWN_OPTION, (char_u *)argv[0]);
		    had_minmin = TRUE;
		}
		if (!want_argument)
		    argv_idx = -1;	/* skip to next argument */
		break;

	    case 'A':		/* "-A" start in Arabic mode */
#ifdef FEAT_ARABIC
		set_option_value((char_u *)"arabic", 1L, NULL, 0);
#else
		mch_errmsg(_(e_noarabic));
		mch_exit(2);
#endif
		break;

	    case 'b':		/* "-b" binary mode */
		/* Needs to be effective before expanding file names, because
		 * for Win32 this makes us edit a shortcut file itself,
		 * instead of the file it links to. */
		set_options_bin(curbuf->b_p_bin, 1, 0);
		curbuf->b_p_bin = 1;	    /* binary file I/O */
		break;

	    case 'C':		/* "-C"  Compatible */
		change_compatible(TRUE);
		break;

	    case 'e':		/* "-e" Ex mode */
		exmode_active = EXMODE_NORMAL;
		break;

	    case 'E':		/* "-E" Improved Ex mode */
		exmode_active = EXMODE_VIM;
		break;

	    case 'f':		/* "-f"  GUI: run in foreground.  Amiga: open
				window directly, not with newcli */
#ifdef FEAT_GUI
		gui.dofork = FALSE;	/* don't fork() when starting GUI */
#endif
		break;

	    case 'g':		/* "-g" start GUI */
		main_start_gui();
		break;

	    case 'F':		/* "-F" start in Farsi mode: rl + fkmap set */
#ifdef FEAT_FKMAP
		p_fkmap = TRUE;
		set_option_value((char_u *)"rl", 1L, NULL, 0);
#else
		mch_errmsg(_(e_nofarsi));
		mch_exit(2);
#endif
		break;

	    case 'h':		/* "-h" give help message */
#ifdef FEAT_GUI_GNOME
		/* Tell usage() to exit for "gvim". */
		gui.starting = FALSE;
#endif
		usage();
		break;

	    case 'H':		/* "-H" start in Hebrew mode: rl + hkmap set */
#ifdef FEAT_RIGHTLEFT
		p_hkmap = TRUE;
		set_option_value((char_u *)"rl", 1L, NULL, 0);
#else
		mch_errmsg(_(e_nohebrew));
		mch_exit(2);
#endif
		break;

	    case 'l':		/* "-l" lisp mode, 'lisp' and 'showmatch' on */
#ifdef FEAT_LISP
		set_option_value((char_u *)"lisp", 1L, NULL, 0);
		p_sm = TRUE;
#endif
		break;

	    case 'M':		/* "-M"  no changes or writing of files */
		reset_modifiable();
		/* FALLTHROUGH */

	    case 'm':		/* "-m"  no writing of files */
		p_write = FALSE;
		break;

	    case 'y':		/* "-y"  easy mode */
#ifdef FEAT_GUI
		gui.starting = TRUE;	/* start GUI a bit later */
#endif
		parmp->evim_mode = TRUE;
		break;

	    case 'N':		/* "-N"  Nocompatible */
		change_compatible(FALSE);
		break;

	    case 'n':		/* "-n" no swap file */
#ifdef FEAT_NETBEANS_INTG
		/* checking for "-nb", netbeans parameters */
		if (argv[0][argv_idx] == 'b')
		{
		    netbeansArg = argv[0];
		    argv_idx = -1;	    /* skip to next argument */
		}
		else
#endif
		parmp->no_swap_file = TRUE;
		break;

	    case 'p':		/* "-p[N]" open N tab pages */
#ifdef TARGET_API_MAC_OSX
		/* For some reason on MacOS X, an argument like:
		   -psn_0_10223617 is passed in when invoke from Finder
		   or with the 'open' command */
		if (argv[0][argv_idx] == 's')
		{
		    argv_idx = -1; /* bypass full -psn */
		    main_start_gui();
		    break;
		}
#endif
#ifdef FEAT_WINDOWS
		/* default is 0: open window for each file */
		parmp->window_count = get_number_arg((char_u *)argv[0],
								&argv_idx, 0);
		parmp->window_layout = WIN_TABS;
#endif
		break;

	    case 'o':		/* "-o[N]" open N horizontal split windows */
#ifdef FEAT_WINDOWS
		/* default is 0: open window for each file */
		parmp->window_count = get_number_arg((char_u *)argv[0],
								&argv_idx, 0);
		parmp->window_layout = WIN_HOR;
#endif
		break;

		case 'O':	/* "-O[N]" open N vertical split windows */
#if defined(FEAT_VERTSPLIT) && defined(FEAT_WINDOWS)
		/* default is 0: open window for each file */
		parmp->window_count = get_number_arg((char_u *)argv[0],
								&argv_idx, 0);
		parmp->window_layout = WIN_VER;
#endif
		break;

#ifdef FEAT_QUICKFIX
	    case 'q':		/* "-q" QuickFix mode */
		if (parmp->edit_type != EDIT_NONE)
		    mainerr(ME_TOO_MANY_ARGS, (char_u *)argv[0]);
		parmp->edit_type = EDIT_QF;
		if (argv[0][argv_idx])		/* "-q{errorfile}" */
		{
		    parmp->use_ef = (char_u *)argv[0] + argv_idx;
		    argv_idx = -1;
		}
		else if (argc > 1)		/* "-q {errorfile}" */
		    want_argument = TRUE;
		break;
#endif

	    case 'R':		/* "-R" readonly mode */
		readonlymode = TRUE;
		curbuf->b_p_ro = TRUE;
		p_uc = 10000;			/* don't update very often */
		break;

	    case 'r':		/* "-r" recovery mode */
	    case 'L':		/* "-L" recovery mode */
		recoverymode = 1;
		break;

	    case 's':
		if (exmode_active)	/* "-s" silent (batch) mode */
		    silent_mode = TRUE;
		else		/* "-s {scriptin}" read from script file */
		    want_argument = TRUE;
		break;

	    case 't':		/* "-t {tag}" or "-t{tag}" jump to tag */
		if (parmp->edit_type != EDIT_NONE)
		    mainerr(ME_TOO_MANY_ARGS, (char_u *)argv[0]);
		parmp->edit_type = EDIT_TAG;
		if (argv[0][argv_idx])		/* "-t{tag}" */
		{
		    parmp->tagname = (char_u *)argv[0] + argv_idx;
		    argv_idx = -1;
		}
		else				/* "-t {tag}" */
		    want_argument = TRUE;
		break;

#ifdef FEAT_EVAL
	    case 'D':		/* "-D"		Debugging */
		parmp->use_debug_break_level = 9999;
		break;
#endif
#ifdef FEAT_DIFF
	    case 'd':		/* "-d"		'diff' */
# ifdef AMIGA
		/* check for "-dev {device}" */
		if (argv[0][argv_idx] == 'e' && argv[0][argv_idx + 1] == 'v')
		    want_argument = TRUE;
		else
# endif
		    parmp->diff_mode = TRUE;
		break;
#endif
	    case 'V':		/* "-V{N}"	Verbose level */
		/* default is 10: a little bit verbose */
		p_verbose = get_number_arg((char_u *)argv[0], &argv_idx, 10);
		if (argv[0][argv_idx] != NUL)
		{
		    set_option_value((char_u *)"verbosefile", 0L,
					     (char_u *)argv[0] + argv_idx, 0);
		    argv_idx = (int)STRLEN(argv[0]);
		}
		break;

	    case 'v':		/* "-v"  Vi-mode (as if called "vi") */
		exmode_active = 0;
#ifdef FEAT_GUI
		gui.starting = FALSE;	/* don't start GUI */
#endif
		break;

	    case 'w':		/* "-w{number}"	set window height */
				/* "-w {scriptout}"	write to script */
		if (vim_isdigit(((char_u *)argv[0])[argv_idx]))
		{
		    n = get_number_arg((char_u *)argv[0], &argv_idx, 10);
		    set_option_value((char_u *)"window", n, NULL, 0);
		    break;
		}
		want_argument = TRUE;
		break;

#ifdef FEAT_CRYPT
	    case 'x':		/* "-x"  encrypted reading/writing of files */
		parmp->ask_for_key = TRUE;
		break;
#endif

	    case 'X':		/* "-X"  don't connect to X server */
#if (defined(UNIX) || defined(VMS)) && defined(FEAT_X11)
		x_no_connect = TRUE;
#endif
		break;

	    case 'Z':		/* "-Z"  restricted mode */
		restricted = TRUE;
		break;

	    case 'c':		/* "-c{command}" or "-c {command}" execute
				   command */
		if (argv[0][argv_idx] != NUL)
		{
		    if (parmp->n_commands >= MAX_ARG_CMDS)
			mainerr(ME_EXTRA_CMD, NULL);
		    parmp->commands[parmp->n_commands++] = (char_u *)argv[0]
								   + argv_idx;
		    argv_idx = -1;
		    break;
		}
		/*FALLTHROUGH*/
	    case 'S':		/* "-S {file}" execute Vim script */
	    case 'i':		/* "-i {viminfo}" use for viminfo */
#ifndef FEAT_DIFF
	    case 'd':		/* "-d {device}" device (for Amiga) */
#endif
	    case 'T':		/* "-T {terminal}" terminal name */
	    case 'u':		/* "-u {vimrc}" vim inits file */
	    case 'U':		/* "-U {gvimrc}" gvim inits file */
	    case 'W':		/* "-W {scriptout}" overwrite */
#ifdef FEAT_GUI_W32
	    case 'P':		/* "-P {parent title}" MDI parent */
#endif
		want_argument = TRUE;
		break;

	    default:
		mainerr(ME_UNKNOWN_OPTION, (char_u *)argv[0]);
	    }

	    /*
	     * Handle option arguments with argument.
	     */
	    if (want_argument)
	    {
		/*
		 * Check for garbage immediately after the option letter.
		 */
		if (argv[0][argv_idx] != NUL)
		    mainerr(ME_GARBAGE, (char_u *)argv[0]);

		--argc;
		if (argc < 1 && c != 'S')  /* -S has an optional argument */
		    mainerr_arg_missing((char_u *)argv[0]);
		++argv;
		argv_idx = -1;

		switch (c)
		{
		case 'c':	/* "-c {command}" execute command */
		case 'S':	/* "-S {file}" execute Vim script */
		    if (parmp->n_commands >= MAX_ARG_CMDS)
			mainerr(ME_EXTRA_CMD, NULL);
		    if (c == 'S')
		    {
			char	*a;

			if (argc < 1)
			    /* "-S" without argument: use default session file
			     * name. */
			    a = SESSION_FILE;
			else if (argv[0][0] == '-')
			{
			    /* "-S" followed by another option: use default
			     * session file name. */
			    a = SESSION_FILE;
			    ++argc;
			    --argv;
			}
			else
			    a = argv[0];
			p = alloc((unsigned)(STRLEN(a) + 4));
			if (p == NULL)
			    mch_exit(2);
			sprintf((char *)p, "so %s", a);
			parmp->cmds_tofree[parmp->n_commands] = TRUE;
			parmp->commands[parmp->n_commands++] = p;
		    }
		    else
			parmp->commands[parmp->n_commands++] =
							    (char_u *)argv[0];
		    break;

		case '-':
		    if (argv[-1][2] == 'c')
		    {
			/* "--cmd {command}" execute command */
			if (parmp->n_pre_commands >= MAX_ARG_CMDS)
			    mainerr(ME_EXTRA_CMD, NULL);
			parmp->pre_commands[parmp->n_pre_commands++] =
							    (char_u *)argv[0];
		    }
		    /* "--startuptime <file>" already handled */
		    break;

	    /*	case 'd':   -d {device} is handled in mch_check_win() for the
	     *		    Amiga */

#ifdef FEAT_QUICKFIX
		case 'q':	/* "-q {errorfile}" QuickFix mode */
		    parmp->use_ef = (char_u *)argv[0];
		    break;
#endif

		case 'i':	/* "-i {viminfo}" use for viminfo */
		    use_viminfo = (char_u *)argv[0];
		    break;

		case 's':	/* "-s {scriptin}" read from script file */
		    if (scriptin[0] != NULL)
		    {
scripterror:
			mch_errmsg(_("Attempt to open script file again: \""));
			mch_errmsg(argv[-1]);
			mch_errmsg(" ");
			mch_errmsg(argv[0]);
			mch_errmsg("\"\n");
			mch_exit(2);
		    }
		    if ((scriptin[0] = mch_fopen(argv[0], READBIN)) == NULL)
		    {
			mch_errmsg(_("Cannot open for reading: \""));
			mch_errmsg(argv[0]);
			mch_errmsg("\"\n");
			mch_exit(2);
		    }
		    if (save_typebuf() == FAIL)
			mch_exit(2);	/* out of memory */
		    break;

		case 't':	/* "-t {tag}" */
		    parmp->tagname = (char_u *)argv[0];
		    break;

		case 'T':	/* "-T {terminal}" terminal name */
		    /*
		     * The -T term argument is always available and when
		     * HAVE_TERMLIB is supported it overrides the environment
		     * variable TERM.
		     */
#ifdef FEAT_GUI
		    if (term_is_gui((char_u *)argv[0]))
			gui.starting = TRUE;	/* start GUI a bit later */
		    else
#endif
			parmp->term = (char_u *)argv[0];
		    break;

		case 'u':	/* "-u {vimrc}" vim inits file */
		    parmp->use_vimrc = (char_u *)argv[0];
		    break;

		case 'U':	/* "-U {gvimrc}" gvim inits file */
#ifdef FEAT_GUI
		    use_gvimrc = (char_u *)argv[0];
#endif
		    break;

		case 'w':	/* "-w {nr}" 'window' value */
				/* "-w {scriptout}" append to script file */
		    if (vim_isdigit(*((char_u *)argv[0])))
		    {
			argv_idx = 0;
			n = get_number_arg((char_u *)argv[0], &argv_idx, 10);
			set_option_value((char_u *)"window", n, NULL, 0);
			argv_idx = -1;
			break;
		    }
		    /*FALLTHROUGH*/
		case 'W':	/* "-W {scriptout}" overwrite script file */
		    if (scriptout != NULL)
			goto scripterror;
		    if ((scriptout = mch_fopen(argv[0],
				    c == 'w' ? APPENDBIN : WRITEBIN)) == NULL)
		    {
			mch_errmsg(_("Cannot open for script output: \""));
			mch_errmsg(argv[0]);
			mch_errmsg("\"\n");
			mch_exit(2);
		    }
		    break;

#ifdef FEAT_GUI_W32
		case 'P':		/* "-P {parent title}" MDI parent */
		    gui_mch_set_parent(argv[0]);
		    break;
#endif
		}
	    }
	}

	/*
	 * File name argument.
	 */
	else
	{
	    argv_idx = -1;	    /* skip to next argument */

	    /* Check for only one type of editing. */
	    if (parmp->edit_type != EDIT_NONE && parmp->edit_type != EDIT_FILE)
		mainerr(ME_TOO_MANY_ARGS, (char_u *)argv[0]);
	    parmp->edit_type = EDIT_FILE;

#ifdef MSWIN
	    /* Remember if the argument was a full path before changing
	     * slashes to backslashes. */
	    if (argv[0][0] != NUL && argv[0][1] == ':' && argv[0][2] == '\\')
		parmp->full_path = TRUE;
#endif

	    /* Add the file to the global argument list. */
	    if (ga_grow(&global_alist.al_ga, 1) == FAIL
		    || (p = vim_strsave((char_u *)argv[0])) == NULL)
		mch_exit(2);
#ifdef FEAT_DIFF
	    if (parmp->diff_mode && mch_isdir(p) && GARGCOUNT > 0
				      && !mch_isdir(alist_name(&GARGLIST[0])))
	    {
		char_u	    *r;

		r = concat_fnames(p, gettail(alist_name(&GARGLIST[0])), TRUE);
		if (r != NULL)
		{
		    vim_free(p);
		    p = r;
		}
	    }
#endif
#if defined(__CYGWIN32__) && !defined(WIN32)
	    /*
	     * If vim is invoked by non-Cygwin tools, convert away any
	     * DOS paths, so things like .swp files are created correctly.
	     * Look for evidence of non-Cygwin paths before we bother.
	     * This is only for when using the Unix files.
	     */
	    if (vim_strpbrk(p, "\\:") != NULL && !path_with_url(p))
	    {
		char posix_path[PATH_MAX];

# if CYGWIN_VERSION_DLL_MAJOR >= 1007
		cygwin_conv_path(CCP_WIN_A_TO_POSIX, p, posix_path, PATH_MAX);
# else
		cygwin_conv_to_posix_path(p, posix_path);
# endif
		vim_free(p);
		p = vim_strsave((char_u *)posix_path);
		if (p == NULL)
		    mch_exit(2);
	    }
#endif

#ifdef USE_FNAME_CASE
	    /* Make the case of the file name match the actual file. */
	    fname_case(p, 0);
#endif

	    alist_add(&global_alist, p,
#if (!defined(UNIX) && !defined(__EMX__)) || defined(ARCHIE)
		    parmp->literal ? 2 : 0	/* add buffer nr after exp. */
#else
		    2		/* add buffer number now and use curbuf */
#endif
		    );

#if defined(FEAT_MBYTE) && defined(WIN32)
	    {
		/* Remember this argument has been added to the argument list.
		 * Needed when 'encoding' is changed. */
		used_file_arg(argv[0], parmp->literal, parmp->full_path,
# ifdef FEAT_DIFF
							    parmp->diff_mode
# else
							    FALSE
# endif
							    );
	    }
#endif
	}

	/*
	 * If there are no more letters after the current "-", go to next
	 * argument.  argv_idx is set to -1 when the current argument is to be
	 * skipped.
	 */
	if (argv_idx <= 0 || argv[0][argv_idx] == NUL)
	{
	    --argc;
	    ++argv;
	    argv_idx = 1;
	}
    }

#ifdef FEAT_EVAL
    /* If there is a "+123" or "-c" command, set v:swapcommand to the first
     * one. */
    if (parmp->n_commands > 0)
    {
	p = alloc((unsigned)STRLEN(parmp->commands[0]) + 3);
	if (p != NULL)
	{
	    sprintf((char *)p, ":%s\r", parmp->commands[0]);
	    set_vim_var_string(VV_SWAPCOMMAND, p, -1);
	    vim_free(p);
	}
    }
#endif
}

/*
 * Print a warning if stdout is not a terminal.
 * When starting in Ex mode and commands come from a file, set Silent mode.
 */
    static void
check_tty(parmp)
    mparm_T	*parmp;
{
    int		input_isatty;		/* is active input a terminal? */

    input_isatty = mch_input_isatty();
    if (exmode_active)
    {
	if (!input_isatty)
	    silent_mode = TRUE;
    }
    else if (parmp->want_full_screen && (!parmp->stdout_isatty || !input_isatty)
#ifdef FEAT_GUI
	    /* don't want the delay when started from the desktop */
	    && !gui.starting
#endif
	    )
    {
#ifdef NBDEBUG
	/*
	 * This shouldn't be necessary. But if I run netbeans with the log
	 * output coming to the console and XOpenDisplay fails, I get vim
	 * trying to start with input/output to my console tty.  This fills my
	 * input buffer so fast I can't even kill the process in under 2
	 * minutes (and it beeps continuously the whole time :-)
	 */
	if (netbeans_active() && (!parmp->stdout_isatty || !input_isatty))
	{
	    mch_errmsg(_("Vim: Error: Failure to start gvim from NetBeans\n"));
	    exit(1);
	}
#endif
	if (!parmp->stdout_isatty)
	    mch_errmsg(_("Vim: Warning: Output is not to a terminal\n"));
	if (!input_isatty)
	    mch_errmsg(_("Vim: Warning: Input is not from a terminal\n"));
	out_flush();
	if (scriptin[0] == NULL)
	    ui_delay(2000L, TRUE);
	TIME_MSG("Warning delay");
    }
}

/*
 * Read text from stdin.
 */
    static void
read_stdin()
{
    int	    i;

#if defined(HAS_SWAP_EXISTS_ACTION)
    /* When getting the ATTENTION prompt here, use a dialog */
    swap_exists_action = SEA_DIALOG;
#endif
    no_wait_return = TRUE;
    i = msg_didany;
    set_buflisted(TRUE);
    (void)open_buffer(TRUE, NULL, 0);	/* create memfile and read file */
    no_wait_return = FALSE;
    msg_didany = i;
    TIME_MSG("reading stdin");
#if defined(HAS_SWAP_EXISTS_ACTION)
    check_swap_exists_action();
#endif
#if !(defined(AMIGA) || defined(MACOS))
    /*
     * Close stdin and dup it from stderr.  Required for GPM to work
     * properly, and for running external commands.
     * Is there any other system that cannot do this?
     */
    close(0);
    ignored = dup(2);
#endif
}

/*
 * Create the requested number of windows and edit buffers in them.
 * Also does recovery if "recoverymode" set.
 */
    static void
create_windows(parmp)
    mparm_T	*parmp UNUSED;
{
#ifdef FEAT_WINDOWS
    int		dorewind;
    int		done = 0;

    /*
     * Create the number of windows that was requested.
     */
    if (parmp->window_count == -1)	/* was not set */
	parmp->window_count = 1;
    if (parmp->window_count == 0)
	parmp->window_count = GARGCOUNT;
    if (parmp->window_count > 1)
    {
	/* Don't change the windows if there was a command in .vimrc that
	 * already split some windows */
	if (parmp->window_layout == 0)
	    parmp->window_layout = WIN_HOR;
	if (parmp->window_layout == WIN_TABS)
	{
	    parmp->window_count = make_tabpages(parmp->window_count);
	    TIME_MSG("making tab pages");
	}
	else if (firstwin->w_next == NULL)
	{
	    parmp->window_count = make_windows(parmp->window_count,
					     parmp->window_layout == WIN_VER);
	    TIME_MSG("making windows");
	}
	else
	    parmp->window_count = win_count();
    }
    else
	parmp->window_count = 1;
#endif

    if (recoverymode)			/* do recover */
    {
	msg_scroll = TRUE;		/* scroll message up */
	ml_recover();
	if (curbuf->b_ml.ml_mfp == NULL) /* failed */
	    getout(1);
	do_modelines(0);		/* do modelines */
    }
    else
    {
	/*
	 * Open a buffer for windows that don't have one yet.
	 * Commands in the .vimrc might have loaded a file or split the window.
	 * Watch out for autocommands that delete a window.
	 */
#ifdef FEAT_AUTOCMD
	/*
	 * Don't execute Win/Buf Enter/Leave autocommands here
	 */
	++autocmd_no_enter;
	++autocmd_no_leave;
#endif
#ifdef FEAT_WINDOWS
	dorewind = TRUE;
	while (done++ < 1000)
	{
	    if (dorewind)
	    {
		if (parmp->window_layout == WIN_TABS)
		    goto_tabpage(1);
		else
		    curwin = firstwin;
	    }
	    else if (parmp->window_layout == WIN_TABS)
	    {
		if (curtab->tp_next == NULL)
		    break;
		goto_tabpage(0);
	    }
	    else
	    {
		if (curwin->w_next == NULL)
		    break;
		curwin = curwin->w_next;
	    }
	    dorewind = FALSE;
#endif
	    curbuf = curwin->w_buffer;
	    if (curbuf->b_ml.ml_mfp == NULL)
	    {
#ifdef FEAT_FOLDING
		/* Set 'foldlevel' to 'foldlevelstart' if it's not negative. */
		if (p_fdls >= 0)
		    curwin->w_p_fdl = p_fdls;
#endif
#if defined(HAS_SWAP_EXISTS_ACTION)
		/* When getting the ATTENTION prompt here, use a dialog */
		swap_exists_action = SEA_DIALOG;
#endif
		set_buflisted(TRUE);

		/* create memfile, read file */
		(void)open_buffer(FALSE, NULL, 0);

#if defined(HAS_SWAP_EXISTS_ACTION)
		if (swap_exists_action == SEA_QUIT)
		{
		    if (got_int || only_one_window())
		    {
			/* abort selected or quit and only one window */
			did_emsg = FALSE;   /* avoid hit-enter prompt */
			getout(1);
		    }
		    /* We can't close the window, it would disturb what
		     * happens next.  Clear the file name and set the arg
		     * index to -1 to delete it later. */
		    setfname(curbuf, NULL, NULL, FALSE);
		    curwin->w_arg_idx = -1;
		    swap_exists_action = SEA_NONE;
		}
		else
		    handle_swap_exists(NULL);
#endif
#ifdef FEAT_AUTOCMD
		dorewind = TRUE;		/* start again */
#endif
	    }
#ifdef FEAT_WINDOWS
	    ui_breakcheck();
	    if (got_int)
	    {
		(void)vgetc();	/* only break the file loading, not the rest */
		break;
	    }
	}
#endif
#ifdef FEAT_WINDOWS
	if (parmp->window_layout == WIN_TABS)
	    goto_tabpage(1);
	else
	    curwin = firstwin;
	curbuf = curwin->w_buffer;
#endif
#ifdef FEAT_AUTOCMD
	--autocmd_no_enter;
	--autocmd_no_leave;
#endif
    }
}

#ifdef FEAT_WINDOWS
    /*
     * If opened more than one window, start editing files in the other
     * windows.  make_windows() has already opened the windows.
     */
    static void
edit_buffers(parmp)
    mparm_T	*parmp;
{
    int		arg_idx;		/* index in argument list */
    int		i;
    int		advance = TRUE;
    win_T	*win;

# ifdef FEAT_AUTOCMD
    /*
     * Don't execute Win/Buf Enter/Leave autocommands here
     */
    ++autocmd_no_enter;
    ++autocmd_no_leave;
# endif

    /* When w_arg_idx is -1 remove the window (see create_windows()). */
    if (curwin->w_arg_idx == -1)
    {
	win_close(curwin, TRUE);
	advance = FALSE;
    }

    arg_idx = 1;
    for (i = 1; i < parmp->window_count; ++i)
    {
	/* When w_arg_idx is -1 remove the window (see create_windows()). */
	if (curwin->w_arg_idx == -1)
	{
	    ++arg_idx;
	    win_close(curwin, TRUE);
	    advance = FALSE;
	    continue;
	}

	if (advance)
	{
	    if (parmp->window_layout == WIN_TABS)
	    {
		if (curtab->tp_next == NULL)	/* just checking */
		    break;
		goto_tabpage(0);
	    }
	    else
	    {
		if (curwin->w_next == NULL)	/* just checking */
		    break;
		win_enter(curwin->w_next, FALSE);
	    }
	}
	advance = TRUE;

	/* Only open the file if there is no file in this window yet (that can
	 * happen when .vimrc contains ":sall"). */
	if (curbuf == firstwin->w_buffer || curbuf->b_ffname == NULL)
	{
	    curwin->w_arg_idx = arg_idx;
	    /* Edit file from arg list, if there is one.  When "Quit" selected
	     * at the ATTENTION prompt close the window. */
# ifdef HAS_SWAP_EXISTS_ACTION
	    swap_exists_did_quit = FALSE;
# endif
	    (void)do_ecmd(0, arg_idx < GARGCOUNT
			  ? alist_name(&GARGLIST[arg_idx]) : NULL,
			  NULL, NULL, ECMD_LASTL, ECMD_HIDE, curwin);
# ifdef HAS_SWAP_EXISTS_ACTION
	    if (swap_exists_did_quit)
	    {
		/* abort or quit selected */
		if (got_int || only_one_window())
		{
		    /* abort selected and only one window */
		    did_emsg = FALSE;   /* avoid hit-enter prompt */
		    getout(1);
		}
		win_close(curwin, TRUE);
		advance = FALSE;
	    }
# endif
	    if (arg_idx == GARGCOUNT - 1)
		arg_had_last = TRUE;
	    ++arg_idx;
	}
	ui_breakcheck();
	if (got_int)
	{
	    (void)vgetc();	/* only break the file loading, not the rest */
	    break;
	}
    }

    if (parmp->window_layout == WIN_TABS)
	goto_tabpage(1);
# ifdef FEAT_AUTOCMD
    --autocmd_no_enter;
# endif

    /* make the first window the current window */
    win = firstwin;
#if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
    /* Avoid making a preview window the current window. */
    while (win->w_p_pvw)
    {
	win = win->w_next;
	if (win == NULL)
	{
	    win = firstwin;
	    break;
	}
    }
#endif
    win_enter(win, FALSE);

# ifdef FEAT_AUTOCMD
    --autocmd_no_leave;
# endif
    TIME_MSG("editing files in windows");
    if (parmp->window_count > 1 && parmp->window_layout != WIN_TABS)
	win_equal(curwin, FALSE, 'b');	/* adjust heights */
}
#endif /* FEAT_WINDOWS */

/*
 * Execute the commands from --cmd arguments "cmds[cnt]".
 */
    static void
exe_pre_commands(parmp)
    mparm_T	*parmp;
{
    char_u	**cmds = parmp->pre_commands;
    int		cnt = parmp->n_pre_commands;
    int		i;

    if (cnt > 0)
    {
	curwin->w_cursor.lnum = 0; /* just in case.. */
	sourcing_name = (char_u *)_("pre-vimrc command line");
# ifdef FEAT_EVAL
	current_SID = SID_CMDARG;
# endif
	for (i = 0; i < cnt; ++i)
	    do_cmdline_cmd(cmds[i]);
	sourcing_name = NULL;
# ifdef FEAT_EVAL
	current_SID = 0;
# endif
	TIME_MSG("--cmd commands");
    }
}

/*
 * Execute "+", "-c" and "-S" arguments.
 */
    static void
exe_commands(parmp)
    mparm_T	*parmp;
{
    int		i;

    /*
     * We start commands on line 0, make "vim +/pat file" match a
     * pattern on line 1.  But don't move the cursor when an autocommand
     * with g`" was used.
     */
    msg_scroll = TRUE;
    if (parmp->tagname == NULL && curwin->w_cursor.lnum <= 1)
	curwin->w_cursor.lnum = 0;
    sourcing_name = (char_u *)"command line";
#ifdef FEAT_EVAL
    current_SID = SID_CARG;
#endif
    for (i = 0; i < parmp->n_commands; ++i)
    {
	do_cmdline_cmd(parmp->commands[i]);
	if (parmp->cmds_tofree[i])
	    vim_free(parmp->commands[i]);
    }
    sourcing_name = NULL;
#ifdef FEAT_EVAL
    current_SID = 0;
#endif
    if (curwin->w_cursor.lnum == 0)
	curwin->w_cursor.lnum = 1;

    if (!exmode_active)
	msg_scroll = FALSE;

#ifdef FEAT_QUICKFIX
    /* When started with "-q errorfile" jump to first error again. */
    if (parmp->edit_type == EDIT_QF)
	qf_jump(NULL, 0, 0, FALSE);
#endif
    TIME_MSG("executing command arguments");
}

/*
 * Source startup scripts.
 */
    static void
source_startup_scripts(parmp)
    mparm_T	*parmp;
{
    int		i;

    /*
     * For "evim" source evim.vim first of all, so that the user can overrule
     * any things he doesn't like.
     */
    if (parmp->evim_mode)
    {
	(void)do_source((char_u *)EVIM_FILE, FALSE, DOSO_NONE);
	TIME_MSG("source evim file");
    }

    /*
     * If -u argument given, use only the initializations from that file and
     * nothing else.
     */
    if (parmp->use_vimrc != NULL)
    {
	if (STRCMP(parmp->use_vimrc, "NONE") == 0
				     || STRCMP(parmp->use_vimrc, "NORC") == 0)
	{
#ifdef FEAT_GUI
	    if (use_gvimrc == NULL)	    /* don't load gvimrc either */
		use_gvimrc = parmp->use_vimrc;
#endif
	    if (parmp->use_vimrc[2] == 'N')
		p_lpl = FALSE;		    /* don't load plugins either */
	}
	else
	{
	    if (do_source(parmp->use_vimrc, FALSE, DOSO_NONE) != OK)
		EMSG2(_("E282: Cannot read from \"%s\""), parmp->use_vimrc);
	}
    }
    else if (!silent_mode)
    {
#ifdef AMIGA
	struct Process	*proc = (struct Process *)FindTask(0L);
	APTR		save_winptr = proc->pr_WindowPtr;

	/* Avoid a requester here for a volume that doesn't exist. */
	proc->pr_WindowPtr = (APTR)-1L;
#endif

	/*
	 * Get system wide defaults, if the file name is defined.
	 */
#ifdef SYS_VIMRC_FILE
	(void)do_source((char_u *)SYS_VIMRC_FILE, FALSE, DOSO_NONE);
#endif
#ifdef MACOS_X
	(void)do_source((char_u *)"$VIMRUNTIME/macmap.vim", FALSE, DOSO_NONE);
#endif

	/*
	 * Try to read initialization commands from the following places:
	 * - environment variable VIMINIT
	 * - user vimrc file (s:.vimrc for Amiga, ~/.vimrc otherwise)
	 * - second user vimrc file ($VIM/.vimrc for Dos)
	 * - environment variable EXINIT
	 * - user exrc file (s:.exrc for Amiga, ~/.exrc otherwise)
	 * - second user exrc file ($VIM/.exrc for Dos)
	 * The first that exists is used, the rest is ignored.
	 */
	if (process_env((char_u *)"VIMINIT", TRUE) != OK)
	{
	    if (do_source((char_u *)USR_VIMRC_FILE, TRUE, DOSO_VIMRC) == FAIL
#ifdef USR_VIMRC_FILE2
		&& do_source((char_u *)USR_VIMRC_FILE2, TRUE,
							   DOSO_VIMRC) == FAIL
#endif
#ifdef USR_VIMRC_FILE3
		&& do_source((char_u *)USR_VIMRC_FILE3, TRUE,
							   DOSO_VIMRC) == FAIL
#endif
#ifdef USR_VIMRC_FILE4
		&& do_source((char_u *)USR_VIMRC_FILE4, TRUE,
							   DOSO_VIMRC) == FAIL
#endif
		&& process_env((char_u *)"EXINIT", FALSE) == FAIL
		&& do_source((char_u *)USR_EXRC_FILE, FALSE, DOSO_NONE) == FAIL)
	    {
#ifdef USR_EXRC_FILE2
		(void)do_source((char_u *)USR_EXRC_FILE2, FALSE, DOSO_NONE);
#endif
	    }
	}

	/*
	 * Read initialization commands from ".vimrc" or ".exrc" in current
	 * directory.  This is only done if the 'exrc' option is set.
	 * Because of security reasons we disallow shell and write commands
	 * now, except for unix if the file is owned by the user or 'secure'
	 * option has been reset in environment of global ".exrc" or ".vimrc".
	 * Only do this if VIMRC_FILE is not the same as USR_VIMRC_FILE or
	 * SYS_VIMRC_FILE.
	 */
	if (p_exrc)
	{
#if defined(UNIX) || defined(VMS)
	    /* If ".vimrc" file is not owned by user, set 'secure' mode. */
	    if (!file_owned(VIMRC_FILE))
#endif
		secure = p_secure;

	    i = FAIL;
	    if (fullpathcmp((char_u *)USR_VIMRC_FILE,
				      (char_u *)VIMRC_FILE, FALSE) != FPC_SAME
#ifdef USR_VIMRC_FILE2
		    && fullpathcmp((char_u *)USR_VIMRC_FILE2,
				      (char_u *)VIMRC_FILE, FALSE) != FPC_SAME
#endif
#ifdef USR_VIMRC_FILE3
		    && fullpathcmp((char_u *)USR_VIMRC_FILE3,
				      (char_u *)VIMRC_FILE, FALSE) != FPC_SAME
#endif
#ifdef SYS_VIMRC_FILE
		    && fullpathcmp((char_u *)SYS_VIMRC_FILE,
				      (char_u *)VIMRC_FILE, FALSE) != FPC_SAME
#endif
				)
		i = do_source((char_u *)VIMRC_FILE, TRUE, DOSO_VIMRC);

	    if (i == FAIL)
	    {
#if defined(UNIX) || defined(VMS)
		/* if ".exrc" is not owned by user set 'secure' mode */
		if (!file_owned(EXRC_FILE))
		    secure = p_secure;
		else
		    secure = 0;
#endif
		if (	   fullpathcmp((char_u *)USR_EXRC_FILE,
				      (char_u *)EXRC_FILE, FALSE) != FPC_SAME
#ifdef USR_EXRC_FILE2
			&& fullpathcmp((char_u *)USR_EXRC_FILE2,
				      (char_u *)EXRC_FILE, FALSE) != FPC_SAME
#endif
				)
		    (void)do_source((char_u *)EXRC_FILE, FALSE, DOSO_NONE);
	    }
	}
	if (secure == 2)
	    need_wait_return = TRUE;
	secure = 0;
#ifdef AMIGA
	proc->pr_WindowPtr = save_winptr;
#endif
    }
    TIME_MSG("sourcing vimrc file(s)");
}

/*
 * Setup to start using the GUI.  Exit with an error when not available.
 */
    static void
main_start_gui()
{
#ifdef FEAT_GUI
    gui.starting = TRUE;	/* start GUI a bit later */
#else
    mch_errmsg(_(e_nogvim));
    mch_errmsg("\n");
    mch_exit(2);
#endif
}

#endif  /* NO_VIM_MAIN */

/*
 * Get an environment variable, and execute it as Ex commands.
 * Returns FAIL if the environment variable was not executed, OK otherwise.
 */
    int
process_env(env, is_viminit)
    char_u	*env;
    int		is_viminit; /* when TRUE, called for VIMINIT */
{
    char_u	*initstr;
    char_u	*save_sourcing_name;
    linenr_T	save_sourcing_lnum;
#ifdef FEAT_EVAL
    scid_T	save_sid;
#endif

    if ((initstr = mch_getenv(env)) != NULL && *initstr != NUL)
    {
	if (is_viminit)
	    vimrc_found(NULL, NULL);
	save_sourcing_name = sourcing_name;
	save_sourcing_lnum = sourcing_lnum;
	sourcing_name = env;
	sourcing_lnum = 0;
#ifdef FEAT_EVAL
	save_sid = current_SID;
	current_SID = SID_ENV;
#endif
	do_cmdline_cmd(initstr);
	sourcing_name = save_sourcing_name;
	sourcing_lnum = save_sourcing_lnum;
#ifdef FEAT_EVAL
	current_SID = save_sid;;
#endif
	return OK;
    }
    return FAIL;
}

#if (defined(UNIX) || defined(VMS)) && !defined(NO_VIM_MAIN)
/*
 * Return TRUE if we are certain the user owns the file "fname".
 * Used for ".vimrc" and ".exrc".
 * Use both stat() and lstat() for extra security.
 */
    static int
file_owned(fname)
    char	*fname;
{
    struct stat s;
# ifdef UNIX
    uid_t	uid = getuid();
# else	 /* VMS */
    uid_t	uid = ((getgid() << 16) | getuid());
# endif

    return !(mch_stat(fname, &s) != 0 || s.st_uid != uid
# ifdef HAVE_LSTAT
	    || mch_lstat(fname, &s) != 0 || s.st_uid != uid
# endif
	    );
}
#endif

/*
 * Give an error message main_errors["n"] and exit.
 */
    static void
mainerr(n, str)
    int		n;	/* one of the ME_ defines */
    char_u	*str;	/* extra argument or NULL */
{
#if defined(UNIX) || defined(__EMX__) || defined(VMS)
    reset_signals();		/* kill us with CTRL-C here, if you like */
#endif

    mch_errmsg(longVersion);
    mch_errmsg("\n");
    mch_errmsg(_(main_errors[n]));
    if (str != NULL)
    {
	mch_errmsg(": \"");
	mch_errmsg((char *)str);
	mch_errmsg("\"");
    }
    mch_errmsg(_("\nMore info with: \"vim -h\"\n"));

    mch_exit(1);
}

    void
mainerr_arg_missing(str)
    char_u	*str;
{
    mainerr(ME_ARG_MISSING, str);
}

#ifndef NO_VIM_MAIN
/*
 * print a message with three spaces prepended and '\n' appended.
 */
    static void
main_msg(s)
    char *s;
{
    mch_msg("   ");
    mch_msg(s);
    mch_msg("\n");
}

/*
 * Print messages for "vim -h" or "vim --help" and exit.
 */
    static void
usage()
{
    int		i;
    static char	*(use[]) =
    {
	N_("[file ..]       edit specified file(s)"),
	N_("-               read text from stdin"),
	N_("-t tag          edit file where tag is defined"),
#ifdef FEAT_QUICKFIX
	N_("-q [errorfile]  edit file with first error")
#endif
    };

#if defined(UNIX) || defined(__EMX__) || defined(VMS)
    reset_signals();		/* kill us with CTRL-C here, if you like */
#endif

    mch_msg(longVersion);
    mch_msg(_("\n\nusage:"));
    for (i = 0; ; ++i)
    {
	mch_msg(_(" vim [arguments] "));
	mch_msg(_(use[i]));
	if (i == (sizeof(use) / sizeof(char_u *)) - 1)
	    break;
	mch_msg(_("\n   or:"));
    }
#ifdef VMS
    mch_msg(_("\nWhere case is ignored prepend / to make flag upper case"));
#endif

    mch_msg(_("\n\nArguments:\n"));
    main_msg(_("--\t\t\tOnly file names after this"));
#if (!defined(UNIX) && !defined(__EMX__)) || defined(ARCHIE)
    main_msg(_("--literal\t\tDon't expand wildcards"));
#endif
#ifdef FEAT_OLE
    main_msg(_("-register\t\tRegister this gvim for OLE"));
    main_msg(_("-unregister\t\tUnregister gvim for OLE"));
#endif
#ifdef FEAT_GUI
    main_msg(_("-g\t\t\tRun using GUI (like \"gvim\")"));
    main_msg(_("-f  or  --nofork\tForeground: Don't fork when starting GUI"));
#endif
    main_msg(_("-v\t\t\tVi mode (like \"vi\")"));
    main_msg(_("-e\t\t\tEx mode (like \"ex\")"));
    main_msg(_("-E\t\t\tImproved Ex mode"));
    main_msg(_("-s\t\t\tSilent (batch) mode (only for \"ex\")"));
#ifdef FEAT_DIFF
    main_msg(_("-d\t\t\tDiff mode (like \"vimdiff\")"));
#endif
    main_msg(_("-y\t\t\tEasy mode (like \"evim\", modeless)"));
    main_msg(_("-R\t\t\tReadonly mode (like \"view\")"));
    main_msg(_("-Z\t\t\tRestricted mode (like \"rvim\")"));
    main_msg(_("-m\t\t\tModifications (writing files) not allowed"));
    main_msg(_("-M\t\t\tModifications in text not allowed"));
    main_msg(_("-b\t\t\tBinary mode"));
#ifdef FEAT_LISP
    main_msg(_("-l\t\t\tLisp mode"));
#endif
    main_msg(_("-C\t\t\tCompatible with Vi: 'compatible'"));
    main_msg(_("-N\t\t\tNot fully Vi compatible: 'nocompatible'"));
    main_msg(_("-V[N][fname]\t\tBe verbose [level N] [log messages to fname]"));
#ifdef FEAT_EVAL
    main_msg(_("-D\t\t\tDebugging mode"));
#endif
    main_msg(_("-n\t\t\tNo swap file, use memory only"));
    main_msg(_("-r\t\t\tList swap files and exit"));
    main_msg(_("-r (with file name)\tRecover crashed session"));
    main_msg(_("-L\t\t\tSame as -r"));
#ifdef AMIGA
    main_msg(_("-f\t\t\tDon't use newcli to open window"));
    main_msg(_("-dev <device>\t\tUse <device> for I/O"));
#endif
#ifdef FEAT_ARABIC
    main_msg(_("-A\t\t\tstart in Arabic mode"));
#endif
#ifdef FEAT_RIGHTLEFT
    main_msg(_("-H\t\t\tStart in Hebrew mode"));
#endif
#ifdef FEAT_FKMAP
    main_msg(_("-F\t\t\tStart in Farsi mode"));
#endif
    main_msg(_("-T <terminal>\tSet terminal type to <terminal>"));
    main_msg(_("-u <vimrc>\t\tUse <vimrc> instead of any .vimrc"));
#ifdef FEAT_GUI
    main_msg(_("-U <gvimrc>\t\tUse <gvimrc> instead of any .gvimrc"));
#endif
    main_msg(_("--noplugin\t\tDon't load plugin scripts"));
#ifdef FEAT_WINDOWS
    main_msg(_("-p[N]\t\tOpen N tab pages (default: one for each file)"));
    main_msg(_("-o[N]\t\tOpen N windows (default: one for each file)"));
    main_msg(_("-O[N]\t\tLike -o but split vertically"));
#endif
    main_msg(_("+\t\t\tStart at end of file"));
    main_msg(_("+<lnum>\t\tStart at line <lnum>"));
    main_msg(_("--cmd <command>\tExecute <command> before loading any vimrc file"));
    main_msg(_("-c <command>\t\tExecute <command> after loading the first file"));
    main_msg(_("-S <session>\t\tSource file <session> after loading the first file"));
    main_msg(_("-s <scriptin>\tRead Normal mode commands from file <scriptin>"));
    main_msg(_("-w <scriptout>\tAppend all typed commands to file <scriptout>"));
    main_msg(_("-W <scriptout>\tWrite all typed commands to file <scriptout>"));
#ifdef FEAT_CRYPT
    main_msg(_("-x\t\t\tEdit encrypted files"));
#endif
#if (defined(UNIX) || defined(VMS)) && defined(FEAT_X11)
# if defined(FEAT_GUI_X11) && !defined(FEAT_GUI_GTK)
    main_msg(_("-display <display>\tConnect vim to this particular X-server"));
# endif
    main_msg(_("-X\t\t\tDo not connect to X server"));
#endif
#ifdef FEAT_CLIENTSERVER
    main_msg(_("--remote <files>\tEdit <files> in a Vim server if possible"));
    main_msg(_("--remote-silent <files>  Same, don't complain if there is no server"));
    main_msg(_("--remote-wait <files>  As --remote but wait for files to have been edited"));
    main_msg(_("--remote-wait-silent <files>  Same, don't complain if there is no server"));
# ifdef FEAT_WINDOWS
    main_msg(_("--remote-tab[-wait][-silent] <files>  As --remote but use tab page per file"));
# endif
    main_msg(_("--remote-send <keys>\tSend <keys> to a Vim server and exit"));
    main_msg(_("--remote-expr <expr>\tEvaluate <expr> in a Vim server and print result"));
    main_msg(_("--serverlist\t\tList available Vim server names and exit"));
    main_msg(_("--servername <name>\tSend to/become the Vim server <name>"));
#endif
#ifdef STARTUPTIME
    main_msg(_("--startuptime <file>\tWrite startup timing messages to <file>"));
#endif
#ifdef FEAT_VIMINFO
    main_msg(_("-i <viminfo>\t\tUse <viminfo> instead of .viminfo"));
#endif
    main_msg(_("-h  or  --help\tPrint Help (this message) and exit"));
    main_msg(_("--version\t\tPrint version information and exit"));

#ifdef FEAT_GUI_X11
# ifdef FEAT_GUI_MOTIF
    mch_msg(_("\nArguments recognised by gvim (Motif version):\n"));
# else
#  ifdef FEAT_GUI_ATHENA
#   ifdef FEAT_GUI_NEXTAW
    mch_msg(_("\nArguments recognised by gvim (neXtaw version):\n"));
#   else
    mch_msg(_("\nArguments recognised by gvim (Athena version):\n"));
#   endif
#  endif
# endif
    main_msg(_("-display <display>\tRun vim on <display>"));
    main_msg(_("-iconic\t\tStart vim iconified"));
    main_msg(_("-background <color>\tUse <color> for the background (also: -bg)"));
    main_msg(_("-foreground <color>\tUse <color> for normal text (also: -fg)"));
    main_msg(_("-font <font>\t\tUse <font> for normal text (also: -fn)"));
    main_msg(_("-boldfont <font>\tUse <font> for bold text"));
    main_msg(_("-italicfont <font>\tUse <font> for italic text"));
    main_msg(_("-geometry <geom>\tUse <geom> for initial geometry (also: -geom)"));
    main_msg(_("-borderwidth <width>\tUse a border width of <width> (also: -bw)"));
    main_msg(_("-scrollbarwidth <width>  Use a scrollbar width of <width> (also: -sw)"));
# ifdef FEAT_GUI_ATHENA
    main_msg(_("-menuheight <height>\tUse a menu bar height of <height> (also: -mh)"));
# endif
    main_msg(_("-reverse\t\tUse reverse video (also: -rv)"));
    main_msg(_("+reverse\t\tDon't use reverse video (also: +rv)"));
    main_msg(_("-xrm <resource>\tSet the specified resource"));
#endif /* FEAT_GUI_X11 */
#ifdef FEAT_GUI_GTK
    mch_msg(_("\nArguments recognised by gvim (GTK+ version):\n"));
    main_msg(_("-font <font>\t\tUse <font> for normal text (also: -fn)"));
    main_msg(_("-geometry <geom>\tUse <geom> for initial geometry (also: -geom)"));
    main_msg(_("-reverse\t\tUse reverse video (also: -rv)"));
    main_msg(_("-display <display>\tRun vim on <display> (also: --display)"));
    main_msg(_("--role <role>\tSet a unique role to identify the main window"));
    main_msg(_("--socketid <xid>\tOpen Vim inside another GTK widget"));
    main_msg(_("--echo-wid\t\tMake gvim echo the Window ID on stdout"));
#endif
#ifdef FEAT_GUI_W32
    main_msg(_("-P <parent title>\tOpen Vim inside parent application"));
    main_msg(_("--windowid <HWND>\tOpen Vim inside another win32 widget"));
#endif

#ifdef FEAT_GUI_GNOME
    /* Gnome gives extra messages for --help if we continue, but not for -h. */
    if (gui.starting)
    {
	mch_msg("\n");
	gui.dofork = FALSE;
    }
    else
#endif
	mch_exit(0);
}

#if defined(HAS_SWAP_EXISTS_ACTION)
/*
 * Check the result of the ATTENTION dialog:
 * When "Quit" selected, exit Vim.
 * When "Recover" selected, recover the file.
 */
    static void
check_swap_exists_action()
{
    if (swap_exists_action == SEA_QUIT)
	getout(1);
    handle_swap_exists(NULL);
}
#endif

#endif

#if defined(STARTUPTIME) || defined(PROTO)
static void time_diff __ARGS((struct timeval *then, struct timeval *now));

static struct timeval	prev_timeval;

# ifdef WIN3264
/*
 * Windows doesn't have gettimeofday(), although it does have struct timeval.
 */
    static int
gettimeofday(struct timeval *tv, char *dummy)
{
    long t = clock();
    tv->tv_sec = t / CLOCKS_PER_SEC;
    tv->tv_usec = (t - tv->tv_sec * CLOCKS_PER_SEC) * 1000000 / CLOCKS_PER_SEC;
    return 0;
}
# endif

/*
 * Save the previous time before doing something that could nest.
 * set "*tv_rel" to the time elapsed so far.
 */
    void
time_push(tv_rel, tv_start)
    void	*tv_rel, *tv_start;
{
    *((struct timeval *)tv_rel) = prev_timeval;
    gettimeofday(&prev_timeval, NULL);
    ((struct timeval *)tv_rel)->tv_usec = prev_timeval.tv_usec
					- ((struct timeval *)tv_rel)->tv_usec;
    ((struct timeval *)tv_rel)->tv_sec = prev_timeval.tv_sec
					 - ((struct timeval *)tv_rel)->tv_sec;
    if (((struct timeval *)tv_rel)->tv_usec < 0)
    {
	((struct timeval *)tv_rel)->tv_usec += 1000000;
	--((struct timeval *)tv_rel)->tv_sec;
    }
    *(struct timeval *)tv_start = prev_timeval;
}

/*
 * Compute the previous time after doing something that could nest.
 * Subtract "*tp" from prev_timeval;
 * Note: The arguments are (void *) to avoid trouble with systems that don't
 * have struct timeval.
 */
    void
time_pop(tp)
    void	*tp;	/* actually (struct timeval *) */
{
    prev_timeval.tv_usec -= ((struct timeval *)tp)->tv_usec;
    prev_timeval.tv_sec -= ((struct timeval *)tp)->tv_sec;
    if (prev_timeval.tv_usec < 0)
    {
	prev_timeval.tv_usec += 1000000;
	--prev_timeval.tv_sec;
    }
}

    static void
time_diff(then, now)
    struct timeval	*then;
    struct timeval	*now;
{
    long	usec;
    long	msec;

    usec = now->tv_usec - then->tv_usec;
    msec = (now->tv_sec - then->tv_sec) * 1000L + usec / 1000L,
    usec = usec % 1000L;
    fprintf(time_fd, "%03ld.%03ld", msec, usec >= 0 ? usec : usec + 1000L);
}

    void
time_msg(mesg, tv_start)
    char	*mesg;
    void	*tv_start;  /* only for do_source: start time; actually
			       (struct timeval *) */
{
    static struct timeval	start;
    struct timeval		now;

    if (time_fd != NULL)
    {
	if (strstr(mesg, "STARTING") != NULL)
	{
	    gettimeofday(&start, NULL);
	    prev_timeval = start;
	    fprintf(time_fd, "\n\ntimes in msec\n");
	    fprintf(time_fd, " clock   self+sourced   self:  sourced script\n");
	    fprintf(time_fd, " clock   elapsed:              other lines\n\n");
	}
	gettimeofday(&now, NULL);
	time_diff(&start, &now);
	if (((struct timeval *)tv_start) != NULL)
	{
	    fprintf(time_fd, "  ");
	    time_diff(((struct timeval *)tv_start), &now);
	}
	fprintf(time_fd, "  ");
	time_diff(&prev_timeval, &now);
	prev_timeval = now;
	fprintf(time_fd, ": %s\n", mesg);
    }
}

#endif

#if (defined(FEAT_CLIENTSERVER) && !defined(NO_VIM_MAIN)) || defined(PROTO)

/*
 * Common code for the X command server and the Win32 command server.
 */

static char_u *build_drop_cmd __ARGS((int filec, char **filev, int tabs, int sendReply));

/*
 * Do the client-server stuff, unless "--servername ''" was used.
 */
    static void
exec_on_server(parmp)
    mparm_T	*parmp;
{
    if (parmp->serverName_arg == NULL || *parmp->serverName_arg != NUL)
    {
# ifdef WIN32
	/* Initialise the client/server messaging infrastructure. */
	serverInitMessaging();
# endif

	/*
	 * When a command server argument was found, execute it.  This may
	 * exit Vim when it was successful.  Otherwise it's executed further
	 * on.  Remember the encoding used here in "serverStrEnc".
	 */
	if (parmp->serverArg)
	{
	    cmdsrv_main(&parmp->argc, parmp->argv,
				    parmp->serverName_arg, &parmp->serverStr);
# ifdef FEAT_MBYTE
	    parmp->serverStrEnc = vim_strsave(p_enc);
# endif
	}

	/* If we're still running, get the name to register ourselves.
	 * On Win32 can register right now, for X11 need to setup the
	 * clipboard first, it's further down. */
	parmp->servername = serverMakeName(parmp->serverName_arg,
							      parmp->argv[0]);
# ifdef WIN32
	if (parmp->servername != NULL)
	{
	    serverSetName(parmp->servername);
	    vim_free(parmp->servername);
	}
# endif
    }
}

/*
 * Prepare for running as a Vim server.
 */
    static void
prepare_server(parmp)
    mparm_T	*parmp;
{
# if defined(FEAT_X11)
    /*
     * Register for remote command execution with :serversend and --remote
     * unless there was a -X or a --servername '' on the command line.
     * Only register nongui-vim's with an explicit --servername argument.
     * When running as root --servername is also required.
     */
    if (X_DISPLAY != NULL && parmp->servername != NULL && (
#  ifdef FEAT_GUI
		(gui.in_use
#   ifdef UNIX
		 && getuid() != ROOT_UID
#   endif
		) ||
#  endif
		parmp->serverName_arg != NULL))
    {
	(void)serverRegisterName(X_DISPLAY, parmp->servername);
	vim_free(parmp->servername);
	TIME_MSG("register server name");
    }
    else
	serverDelayedStartName = parmp->servername;
# endif

    /*
     * Execute command ourselves if we're here because the send failed (or
     * else we would have exited above).
     */
    if (parmp->serverStr != NULL)
    {
	char_u *p;

	server_to_input_buf(serverConvert(parmp->serverStrEnc,
						       parmp->serverStr, &p));
	vim_free(p);
    }
}

    static void
cmdsrv_main(argc, argv, serverName_arg, serverStr)
    int		*argc;
    char	**argv;
    char_u	*serverName_arg;
    char_u	**serverStr;
{
    char_u	*res;
    int		i;
    char_u	*sname;
    int		ret;
    int		didone = FALSE;
    int		exiterr = 0;
    char	**newArgV = argv + 1;
    int		newArgC = 1,
		Argc = *argc;
    int		argtype;
#define ARGTYPE_OTHER		0
#define ARGTYPE_EDIT		1
#define ARGTYPE_EDIT_WAIT	2
#define ARGTYPE_SEND		3
    int		silent = FALSE;
    int		tabs = FALSE;
# ifndef FEAT_X11
    HWND	srv;
# else
    Window	srv;

    setup_term_clip();
# endif

    sname = serverMakeName(serverName_arg, argv[0]);
    if (sname == NULL)
	return;

    /*
     * Execute the command server related arguments and remove them
     * from the argc/argv array; We may have to return into main()
     */
    for (i = 1; i < Argc; i++)
    {
	res = NULL;
	if (STRCMP(argv[i], "--") == 0)	/* end of option arguments */
	{
	    for (; i < *argc; i++)
	    {
		*newArgV++ = argv[i];
		newArgC++;
	    }
	    break;
	}

	if (STRICMP(argv[i], "--remote-send") == 0)
	    argtype = ARGTYPE_SEND;
	else if (STRNICMP(argv[i], "--remote", 8) == 0)
	{
	    char	*p = argv[i] + 8;

	    argtype = ARGTYPE_EDIT;
	    while (*p != NUL)
	    {
		if (STRNICMP(p, "-wait", 5) == 0)
		{
		    argtype = ARGTYPE_EDIT_WAIT;
		    p += 5;
		}
		else if (STRNICMP(p, "-silent", 7) == 0)
		{
		    silent = TRUE;
		    p += 7;
		}
		else if (STRNICMP(p, "-tab", 4) == 0)
		{
		    tabs = TRUE;
		    p += 4;
		}
		else
		{
		    argtype = ARGTYPE_OTHER;
		    break;
		}
	    }
	}
	else
	    argtype = ARGTYPE_OTHER;

	if (argtype != ARGTYPE_OTHER)
	{
	    if (i == *argc - 1)
		mainerr_arg_missing((char_u *)argv[i]);
	    if (argtype == ARGTYPE_SEND)
	    {
		*serverStr = (char_u *)argv[i + 1];
		i++;
	    }
	    else
	    {
		*serverStr = build_drop_cmd(*argc - i - 1, argv + i + 1,
					  tabs, argtype == ARGTYPE_EDIT_WAIT);
		if (*serverStr == NULL)
		{
		    /* Probably out of memory, exit. */
		    didone = TRUE;
		    exiterr = 1;
		    break;
		}
		Argc = i;
	    }
# ifdef FEAT_X11
	    if (xterm_dpy == NULL)
	    {
		mch_errmsg(_("No display"));
		ret = -1;
	    }
	    else
		ret = serverSendToVim(xterm_dpy, sname, *serverStr,
						    NULL, &srv, 0, 0, silent);
# else
	    /* Win32 always works? */
	    ret = serverSendToVim(sname, *serverStr, NULL, &srv, 0, silent);
# endif
	    if (ret < 0)
	    {
		if (argtype == ARGTYPE_SEND)
		{
		    /* Failed to send, abort. */
		    mch_errmsg(_(": Send failed.\n"));
		    didone = TRUE;
		    exiterr = 1;
		}
		else if (!silent)
		    /* Let vim start normally.  */
		    mch_errmsg(_(": Send failed. Trying to execute locally\n"));
		break;
	    }

# ifdef FEAT_GUI_W32
	    /* Guess that when the server name starts with "g" it's a GUI
	     * server, which we can bring to the foreground here.
	     * Foreground() in the server doesn't work very well. */
	    if (argtype != ARGTYPE_SEND && TOUPPER_ASC(*sname) == 'G')
		SetForegroundWindow(srv);
# endif

	    /*
	     * For --remote-wait: Wait until the server did edit each
	     * file.  Also detect that the server no longer runs.
	     */
	    if (ret >= 0 && argtype == ARGTYPE_EDIT_WAIT)
	    {
		int	numFiles = *argc - i - 1;
		int	j;
		char_u  *done = alloc(numFiles);
		char_u  *p;
# ifdef FEAT_GUI_W32
		NOTIFYICONDATA ni;
		int	count = 0;
		extern HWND message_window;
# endif

		if (numFiles > 0 && argv[i + 1][0] == '+')
		    /* Skip "+cmd" argument, don't wait for it to be edited. */
		    --numFiles;

# ifdef FEAT_GUI_W32
		ni.cbSize = sizeof(ni);
		ni.hWnd = message_window;
		ni.uID = 0;
		ni.uFlags = NIF_ICON|NIF_TIP;
		ni.hIcon = LoadIcon((HINSTANCE)GetModuleHandle(0), "IDR_VIM");
		sprintf(ni.szTip, _("%d of %d edited"), count, numFiles);
		Shell_NotifyIcon(NIM_ADD, &ni);
# endif

		/* Wait for all files to unload in remote */
		vim_memset(done, 0, numFiles);
		while (memchr(done, 0, numFiles) != NULL)
		{
# ifdef WIN32
		    p = serverGetReply(srv, NULL, TRUE, TRUE);
		    if (p == NULL)
			break;
# else
		    if (serverReadReply(xterm_dpy, srv, &p, TRUE) < 0)
			break;
# endif
		    j = atoi((char *)p);
		    if (j >= 0 && j < numFiles)
		    {
# ifdef FEAT_GUI_W32
			++count;
			sprintf(ni.szTip, _("%d of %d edited"),
							     count, numFiles);
			Shell_NotifyIcon(NIM_MODIFY, &ni);
# endif
			done[j] = 1;
		    }
		}
# ifdef FEAT_GUI_W32
		Shell_NotifyIcon(NIM_DELETE, &ni);
# endif
	    }
	}
	else if (STRICMP(argv[i], "--remote-expr") == 0)
	{
	    if (i == *argc - 1)
		mainerr_arg_missing((char_u *)argv[i]);
# ifdef WIN32
	    /* Win32 always works? */
	    if (serverSendToVim(sname, (char_u *)argv[i + 1],
						    &res, NULL, 1, FALSE) < 0)
# else
	    if (xterm_dpy == NULL)
		mch_errmsg(_("No display: Send expression failed.\n"));
	    else if (serverSendToVim(xterm_dpy, sname, (char_u *)argv[i + 1],
						 &res, NULL, 1, 1, FALSE) < 0)
# endif
	    {
		if (res != NULL && *res != NUL)
		{
		    /* Output error from remote */
		    mch_errmsg((char *)res);
		    vim_free(res);
		    res = NULL;
		}
		mch_errmsg(_(": Send expression failed.\n"));
	    }
	}
	else if (STRICMP(argv[i], "--serverlist") == 0)
	{
# ifdef WIN32
	    /* Win32 always works? */
	    res = serverGetVimNames();
# else
	    if (xterm_dpy != NULL)
		res = serverGetVimNames(xterm_dpy);
# endif
	    if (called_emsg)
		mch_errmsg("\n");
	}
	else if (STRICMP(argv[i], "--servername") == 0)
	{
	    /* Already processed. Take it out of the command line */
	    i++;
	    continue;
	}
	else
	{
	    *newArgV++ = argv[i];
	    newArgC++;
	    continue;
	}
	didone = TRUE;
	if (res != NULL && *res != NUL)
	{
	    mch_msg((char *)res);
	    if (res[STRLEN(res) - 1] != '\n')
		mch_msg("\n");
	}
	vim_free(res);
    }

    if (didone)
    {
	display_errors();	/* display any collected messages */
	exit(exiterr);	/* Mission accomplished - get out */
    }

    /* Return back into main() */
    *argc = newArgC;
    vim_free(sname);
}

/*
 * Build a ":drop" command to send to a Vim server.
 */
    static char_u *
build_drop_cmd(filec, filev, tabs, sendReply)
    int		filec;
    char	**filev;
    int		tabs;		/* Use ":tab drop" instead of ":drop". */
    int		sendReply;
{
    garray_T	ga;
    int		i;
    char_u	*inicmd = NULL;
    char_u	*p;
    char_u	*cwd;

    if (filec > 0 && filev[0][0] == '+')
    {
	inicmd = (char_u *)filev[0] + 1;
	filev++;
	filec--;
    }
    /* Check if we have at least one argument. */
    if (filec <= 0)
	mainerr_arg_missing((char_u *)filev[-1]);

    /* Temporarily cd to the current directory to handle relative file names. */
    cwd = alloc(MAXPATHL);
    if (cwd == NULL)
	return NULL;
    if (mch_dirname(cwd, MAXPATHL) != OK)
    {
	vim_free(cwd);
	return NULL;
    }
    p = vim_strsave_escaped_ext(cwd,
#ifdef BACKSLASH_IN_FILENAME
		    "",  /* rem_backslash() will tell what chars to escape */
#else
		    PATH_ESC_CHARS,
#endif
		    '\\', TRUE);
    vim_free(cwd);
    if (p == NULL)
	return NULL;
    ga_init2(&ga, 1, 100);
    ga_concat(&ga, (char_u *)"<C-\\><C-N>:cd ");
    ga_concat(&ga, p);
    vim_free(p);

    /* Call inputsave() so that a prompt for an encryption key works. */
    ga_concat(&ga, (char_u *)"<CR>:if exists('*inputsave')|call inputsave()|endif|");
    if (tabs)
	ga_concat(&ga, (char_u *)"tab ");
    ga_concat(&ga, (char_u *)"drop");
    for (i = 0; i < filec; i++)
    {
	/* On Unix the shell has already expanded the wildcards, don't want to
	 * do it again in the Vim server.  On MS-Windows only escape
	 * non-wildcard characters. */
	p = vim_strsave_escaped((char_u *)filev[i],
#ifdef UNIX
		PATH_ESC_CHARS
#else
		(char_u *)" \t%#"
#endif
		);
	if (p == NULL)
	{
	    vim_free(ga.ga_data);
	    return NULL;
	}
	ga_concat(&ga, (char_u *)" ");
	ga_concat(&ga, p);
	vim_free(p);
    }
    ga_concat(&ga, (char_u *)"|if exists('*inputrestore')|call inputrestore()|endif<CR>");

    /* The :drop commands goes to Insert mode when 'insertmode' is set, use
     * CTRL-\ CTRL-N again. */
    ga_concat(&ga, (char_u *)"<C-\\><C-N>");

    /* Switch back to the correct current directory (prior to temporary path
     * switch) unless 'autochdir' is set, in which case it will already be
     * correct after the :drop command. */
    ga_concat(&ga, (char_u *)":if !exists('+acd')||!&acd|cd -|endif<CR>");

    if (sendReply)
	ga_concat(&ga, (char_u *)":call SetupRemoteReplies()<CR>");
    ga_concat(&ga, (char_u *)":");
    if (inicmd != NULL)
    {
	/* Can't use <CR> after "inicmd", because an "startinsert" would cause
	 * the following commands to be inserted as text.  Use a "|",
	 * hopefully "inicmd" does allow this... */
	ga_concat(&ga, inicmd);
	ga_concat(&ga, (char_u *)"|");
    }
    /* Bring the window to the foreground, goto Insert mode when 'im' set and
     * clear command line. */
    ga_concat(&ga, (char_u *)"cal foreground()|if &im|star|en|redr|f<CR>");
    ga_append(&ga, NUL);
    return ga.ga_data;
}

/*
 * Make our basic server name: use the specified "arg" if given, otherwise use
 * the tail of the command "cmd" we were started with.
 * Return the name in allocated memory.  This doesn't include a serial number.
 */
    static char_u *
serverMakeName(arg, cmd)
    char_u	*arg;
    char	*cmd;
{
    char_u *p;

    if (arg != NULL && *arg != NUL)
	p = vim_strsave_up(arg);
    else
    {
	p = vim_strsave_up(gettail((char_u *)cmd));
	/* Remove .exe or .bat from the name. */
	if (p != NULL && vim_strchr(p, '.') != NULL)
	    *vim_strchr(p, '.') = NUL;
    }
    return p;
}
#endif /* FEAT_CLIENTSERVER */

#if defined(FEAT_CLIENTSERVER) || defined(PROTO)
/*
 * Replace termcodes such as <CR> and insert as key presses if there is room.
 */
    void
server_to_input_buf(str)
    char_u	*str;
{
    char_u      *ptr = NULL;
    char_u      *cpo_save = p_cpo;

    /* Set 'cpoptions' the way we want it.
     *    B set - backslashes are *not* treated specially
     *    k set - keycodes are *not* reverse-engineered
     *    < unset - <Key> sequences *are* interpreted
     *  The last but one parameter of replace_termcodes() is TRUE so that the
     *  <lt> sequence is recognised - needed for a real backslash.
     */
    p_cpo = (char_u *)"Bk";
    str = replace_termcodes((char_u *)str, &ptr, FALSE, TRUE, FALSE);
    p_cpo = cpo_save;

    if (*ptr != NUL)	/* trailing CTRL-V results in nothing */
    {
	/*
	 * Add the string to the input stream.
	 * Can't use add_to_input_buf() here, we now have K_SPECIAL bytes.
	 *
	 * First clear typed characters from the typeahead buffer, there could
	 * be half a mapping there.  Then append to the existing string, so
	 * that multiple commands from a client are concatenated.
	 */
	if (typebuf.tb_maplen < typebuf.tb_len)
	    del_typebuf(typebuf.tb_len - typebuf.tb_maplen, typebuf.tb_maplen);
	(void)ins_typebuf(str, REMAP_NONE, typebuf.tb_len, TRUE, FALSE);

	/* Let input_available() know we inserted text in the typeahead
	 * buffer. */
	typebuf_was_filled = TRUE;
    }
    vim_free((char_u *)ptr);
}

/*
 * Evaluate an expression that the client sent to a string.
 */
    char_u *
eval_client_expr_to_string(expr)
    char_u *expr;
{
    char_u	*res;
    int		save_dbl = debug_break_level;
    int		save_ro = redir_off;

     /* Disable debugging, otherwise Vim hangs, waiting for "cont" to be
      * typed. */
    debug_break_level = -1;
    redir_off = 0;
    /* Do not display error message, otherwise Vim hangs, waiting for "cont"
     * to be typed.  Do generate errors so that try/catch works. */
    ++emsg_silent;

    res = eval_to_string(expr, NULL, TRUE);

    debug_break_level = save_dbl;
    redir_off = save_ro;
    --emsg_silent;
    if (emsg_silent < 0)
	emsg_silent = 0;

    /* A client can tell us to redraw, but not to display the cursor, so do
     * that here. */
    setcursor();
    out_flush();
#ifdef FEAT_GUI
    if (gui.in_use)
	gui_update_cursor(FALSE, FALSE);
#endif

    return res;
}

/*
 * If conversion is needed, convert "data" from "client_enc" to 'encoding' and
 * return an allocated string.  Otherwise return "data".
 * "*tofree" is set to the result when it needs to be freed later.
 */
    char_u *
serverConvert(client_enc, data, tofree)
    char_u *client_enc UNUSED;
    char_u *data;
    char_u **tofree;
{
    char_u	*res = data;

    *tofree = NULL;
# ifdef FEAT_MBYTE
    if (client_enc != NULL && p_enc != NULL)
    {
	vimconv_T	vimconv;

	vimconv.vc_type = CONV_NONE;
	if (convert_setup(&vimconv, client_enc, p_enc) != FAIL
					      && vimconv.vc_type != CONV_NONE)
	{
	    res = string_convert(&vimconv, data, NULL);
	    if (res == NULL)
		res = data;
	    else
		*tofree = res;
	}
	convert_setup(&vimconv, NULL, NULL);
    }
# endif
    return res;
}
#endif

/*
 * When FEAT_FKMAP is defined, also compile the Farsi source code.
 */
#if defined(FEAT_FKMAP) || defined(PROTO)
# include "farsi.c"
#endif

/*
 * When FEAT_ARABIC is defined, also compile the Arabic source code.
 */
#if defined(FEAT_ARABIC) || defined(PROTO)
# include "arabic.c"
#endif