xref: /vim-8.2.3635/src/main.c (revision ea2d8d25)
1 /* vi:set ts=8 sts=4 sw=4 noet:
2  *
3  * VIM - Vi IMproved	by Bram Moolenaar
4  *
5  * Do ":help uganda"  in Vim to read copying and usage conditions.
6  * Do ":help credits" in Vim to see a list of people who contributed.
7  * See README.txt for an overview of the Vim source code.
8  */
9 
10 #define EXTERN
11 #include "vim.h"
12 
13 #ifdef __CYGWIN__
14 # ifndef MSWIN
15 #  include <cygwin/version.h>
16 #  include <sys/cygwin.h>	// for cygwin_conv_to_posix_path() and/or
17 				// cygwin_conv_path()
18 # endif
19 # include <limits.h>
20 #endif
21 
22 #if defined(MSWIN) && (!defined(FEAT_GUI_MSWIN) || defined(VIMDLL))
23 # include "iscygpty.h"
24 #endif
25 
26 // Values for edit_type.
27 #define EDIT_NONE   0	    // no edit type yet
28 #define EDIT_FILE   1	    // file name argument[s] given, use argument list
29 #define EDIT_STDIN  2	    // read file from stdin
30 #define EDIT_TAG    3	    // tag name argument given, use tagname
31 #define EDIT_QF	    4	    // start in quickfix mode
32 
33 #if (defined(UNIX) || defined(VMS)) && !defined(NO_VIM_MAIN)
34 static int file_owned(char *fname);
35 #endif
36 static void mainerr(int, char_u *);
37 static void early_arg_scan(mparm_T *parmp);
38 #ifndef NO_VIM_MAIN
39 static void usage(void);
40 static void parse_command_name(mparm_T *parmp);
41 static void command_line_scan(mparm_T *parmp);
42 static void check_tty(mparm_T *parmp);
43 static void read_stdin(void);
44 static void create_windows(mparm_T *parmp);
45 static void edit_buffers(mparm_T *parmp, char_u *cwd);
46 static void exe_pre_commands(mparm_T *parmp);
47 static void exe_commands(mparm_T *parmp);
48 static void source_startup_scripts(mparm_T *parmp);
49 static void main_start_gui(void);
50 static void check_swap_exists_action(void);
51 # ifdef FEAT_EVAL
52 static void set_progpath(char_u *argv0);
53 # endif
54 #endif
55 
56 
57 /*
58  * Different types of error messages.
59  */
60 static char *(main_errors[]) =
61 {
62     N_("Unknown option argument"),
63 #define ME_UNKNOWN_OPTION	0
64     N_("Too many edit arguments"),
65 #define ME_TOO_MANY_ARGS	1
66     N_("Argument missing after"),
67 #define ME_ARG_MISSING		2
68     N_("Garbage after option argument"),
69 #define ME_GARBAGE		3
70     N_("Too many \"+command\", \"-c command\" or \"--cmd command\" arguments"),
71 #define ME_EXTRA_CMD		4
72     N_("Invalid argument for"),
73 #define ME_INVALID_ARG		5
74 };
75 
76 #ifndef PROTO		// don't want a prototype for main()
77 
78 // Various parameters passed between main() and other functions.
79 static mparm_T	params;
80 
81 #ifndef NO_VIM_MAIN	// skip this for unittests
82 
83 static char_u *start_dir = NULL;	// current working dir on startup
84 
85 static int has_dash_c_arg = FALSE;
86 
87 # ifdef VIMDLL
88 __declspec(dllexport)
89 # endif
90     int
91 # ifdef MSWIN
92 VimMain
93 # else
94 main
95 # endif
96 (int argc, char **argv)
97 {
98 #if defined(STARTUPTIME) || defined(CLEAN_RUNTIMEPATH)
99     int		i;
100 #endif
101 
102     /*
103      * Do any system-specific initialisations.  These can NOT use IObuff or
104      * NameBuff.  Thus emsg2() cannot be called!
105      */
106     mch_early_init();
107 
108 #ifdef MSWIN
109     /*
110      * MinGW expands command line arguments, which confuses our code to
111      * convert when 'encoding' changes.  Get the unexpanded arguments.
112      */
113     argc = get_cmd_argsW(&argv);
114 #endif
115 
116     // Many variables are in "params" so that we can pass them to invoked
117     // functions without a lot of arguments.  "argc" and "argv" are also
118     // copied, so that they can be changed.
119     CLEAR_FIELD(params);
120     params.argc = argc;
121     params.argv = argv;
122     params.want_full_screen = TRUE;
123 #ifdef FEAT_EVAL
124     params.use_debug_break_level = -1;
125 #endif
126     params.window_count = -1;
127 
128 #ifdef FEAT_RUBY
129     {
130 	int ruby_stack_start;
131 	vim_ruby_init((void *)&ruby_stack_start);
132     }
133 #endif
134 
135 #ifdef FEAT_TCL
136     vim_tcl_init(params.argv[0]);
137 #endif
138 
139 #ifdef MEM_PROFILE
140     atexit(vim_mem_profile_dump);
141 #endif
142 
143 #ifdef STARTUPTIME
144     // Need to find "--startuptime" before actually parsing arguments.
145     for (i = 1; i < argc - 1; ++i)
146 	if (STRICMP(argv[i], "--startuptime") == 0)
147 	{
148 	    time_fd = mch_fopen(argv[i + 1], "a");
149 	    TIME_MSG("--- VIM STARTING ---");
150 	    break;
151 	}
152 #endif
153     starttime = time(NULL);
154 
155 #ifdef CLEAN_RUNTIMEPATH
156     // Need to find "--clean" before actually parsing arguments.
157     for (i = 1; i < argc; ++i)
158 	if (STRICMP(argv[i], "--clean") == 0)
159 	{
160 	    params.clean = TRUE;
161 	    break;
162 	}
163 #endif
164     common_init(&params);
165 
166 #ifdef VIMDLL
167     // Check if the current executable file is for the GUI subsystem.
168     gui.starting = mch_is_gui_executable();
169 #elif defined(FEAT_GUI_MSWIN)
170     gui.starting = TRUE;
171 #endif
172 
173 #ifdef FEAT_CLIENTSERVER
174     /*
175      * Do the client-server stuff, unless "--servername ''" was used.
176      * This may exit Vim if the command was sent to the server.
177      */
178     exec_on_server(&params);
179 #endif
180 
181     /*
182      * Figure out the way to work from the command name argv[0].
183      * "vimdiff" starts diff mode, "rvim" sets "restricted", etc.
184      */
185     parse_command_name(&params);
186 
187     /*
188      * Process the command line arguments.  File names are put in the global
189      * argument list "global_alist".
190      */
191     command_line_scan(&params);
192     TIME_MSG("parsing arguments");
193 
194     /*
195      * On some systems, when we compile with the GUI, we always use it.  On Mac
196      * there is no terminal version, and on Windows we can't fork one off with
197      * :gui.
198      */
199 #ifdef ALWAYS_USE_GUI
200     gui.starting = TRUE;
201 #else
202 # if defined(FEAT_GUI_X11) || defined(FEAT_GUI_GTK)
203     /*
204      * Check if the GUI can be started.  Reset gui.starting if not.
205      * Don't know about other systems, stay on the safe side and don't check.
206      */
207     if (gui.starting)
208     {
209 	if (gui_init_check() == FAIL)
210 	{
211 	    gui.starting = FALSE;
212 
213 	    // When running "evim" or "gvim -y" we need the menus, exit if we
214 	    // don't have them.
215 	    if (params.evim_mode)
216 		mch_exit(1);
217 	}
218     }
219 # endif
220 #endif
221 
222     if (GARGCOUNT > 0)
223     {
224 #ifdef EXPAND_FILENAMES
225 	/*
226 	 * Expand wildcards in file names.
227 	 */
228 	if (!params.literal)
229 	{
230 	    start_dir = alloc(MAXPATHL);
231 	    if (start_dir != NULL)
232 		mch_dirname(start_dir, MAXPATHL);
233 	    // Temporarily add '(' and ')' to 'isfname'.  These are valid
234 	    // filename characters but are excluded from 'isfname' to make
235 	    // "gf" work on a file name in parenthesis (e.g.: see vim.h).
236 	    do_cmdline_cmd((char_u *)":set isf+=(,)");
237 	    alist_expand(NULL, 0);
238 	    do_cmdline_cmd((char_u *)":set isf&");
239 	    if (start_dir != NULL)
240 		mch_chdir((char *)start_dir);
241 	}
242 #endif
243 	params.fname = alist_name(&GARGLIST[0]);
244     }
245 
246 #ifdef MSWIN
247     {
248 	extern void set_alist_count(void);
249 
250 	// Remember the number of entries in the argument list.  If it changes
251 	// we don't react on setting 'encoding'.
252 	set_alist_count();
253     }
254 #endif
255 
256 #ifdef MSWIN
257     if (GARGCOUNT == 1 && params.full_path)
258     {
259 	/*
260 	 * If there is one filename, fully qualified, we have very probably
261 	 * been invoked from explorer, so change to the file's directory.
262 	 * Hint: to avoid this when typing a command use a forward slash.
263 	 * If the cd fails, it doesn't matter.
264 	 */
265 	(void)vim_chdirfile(params.fname, "drop");
266 	if (start_dir != NULL)
267 	    mch_dirname(start_dir, MAXPATHL);
268     }
269 #endif
270     TIME_MSG("expanding arguments");
271 
272 #ifdef FEAT_DIFF
273     if (params.diff_mode && params.window_count == -1)
274 	params.window_count = 0;	// open up to 3 windows
275 #endif
276 
277     // Don't redraw until much later.
278     ++RedrawingDisabled;
279 
280     /*
281      * When listing swap file names, don't do cursor positioning et. al.
282      */
283     if (recoverymode && params.fname == NULL)
284 	params.want_full_screen = FALSE;
285 
286     /*
287      * When certain to start the GUI, don't check capabilities of terminal.
288      * For GTK we can't be sure, but when started from the desktop it doesn't
289      * make sense to try using a terminal.
290      */
291 #if defined(ALWAYS_USE_GUI) || defined(FEAT_GUI_X11) || defined(FEAT_GUI_GTK) \
292 	|| defined(VIMDLL)
293     if (gui.starting
294 # ifdef FEAT_GUI_GTK
295 	    && !isatty(2)
296 # endif
297 	    )
298 	params.want_full_screen = FALSE;
299 #endif
300 
301 #if defined(FEAT_GUI_MAC) && defined(MACOS_X_DARWIN)
302     // When the GUI is started from Finder, need to display messages in a
303     // message box.  isatty(2) returns TRUE anyway, thus we need to check the
304     // name to know we're not started from a terminal.
305     if (gui.starting && (!isatty(2) || strcmp("/dev/console", ttyname(2)) == 0))
306     {
307 	params.want_full_screen = FALSE;
308 
309 	// Avoid always using "/" as the current directory.  Note that when
310 	// started from Finder the arglist will be filled later in
311 	// HandleODocAE() and "fname" will be NULL.
312 	if (getcwd((char *)NameBuff, MAXPATHL) != NULL
313 						&& STRCMP(NameBuff, "/") == 0)
314 	{
315 	    if (params.fname != NULL)
316 		(void)vim_chdirfile(params.fname, "drop");
317 	    else
318 	    {
319 		expand_env((char_u *)"$HOME", NameBuff, MAXPATHL);
320 		vim_chdir(NameBuff);
321 	    }
322 	    if (start_dir != NULL)
323 		mch_dirname(start_dir, MAXPATHL);
324 	}
325     }
326 #endif
327 
328     /*
329      * mch_init() sets up the terminal (window) for use.  This must be
330      * done after resetting full_screen, otherwise it may move the cursor.
331      * Note that we may use mch_exit() before mch_init()!
332      */
333     mch_init();
334     TIME_MSG("shell init");
335 
336 #ifdef USE_XSMP
337     /*
338      * For want of anywhere else to do it, try to connect to xsmp here.
339      * Fitting it in after gui_mch_init, but before gui_init (via termcapinit).
340      * Hijacking -X 'no X connection' to also disable XSMP connection as that
341      * has a similar delay upon failure.
342      * Only try if SESSION_MANAGER is set to something non-null.
343      */
344     if (!x_no_connect)
345     {
346 	char *p = getenv("SESSION_MANAGER");
347 
348 	if (p != NULL && *p != NUL)
349 	{
350 	    xsmp_init();
351 	    TIME_MSG("xsmp init");
352 	}
353     }
354 #endif
355 
356     /*
357      * Print a warning if stdout is not a terminal.
358      */
359     check_tty(&params);
360 
361 #ifdef _IOLBF
362     // Ensure output works usefully without a tty: buffer lines instead of
363     // fully buffered.
364     if (silent_mode)
365 	setvbuf(stdout, NULL, _IOLBF, 0);
366 #endif
367 
368     // This message comes before term inits, but after setting "silent_mode"
369     // when the input is not a tty. Omit the message with --not-a-term.
370     if (GARGCOUNT > 1 && !silent_mode && !is_not_a_term())
371 	printf(_("%d files to edit\n"), GARGCOUNT);
372 
373     if (params.want_full_screen && !silent_mode)
374     {
375 	termcapinit(params.term);	// set terminal name and get terminal
376 				   // capabilities (will set full_screen)
377 	screen_start();		// don't know where cursor is now
378 	TIME_MSG("Termcap init");
379     }
380 
381     /*
382      * Set the default values for the options that use Rows and Columns.
383      */
384     ui_get_shellsize();		// inits Rows and Columns
385     win_init_size();
386 #ifdef FEAT_DIFF
387     // Set the 'diff' option now, so that it can be checked for in a .vimrc
388     // file.  There is no buffer yet though.
389     if (params.diff_mode)
390 	diff_win_options(firstwin, FALSE);
391 #endif
392 
393     cmdline_row = Rows - p_ch;
394     msg_row = cmdline_row;
395     screenalloc(FALSE);		// allocate screen buffers
396     set_init_2();
397     TIME_MSG("inits 2");
398 
399     msg_scroll = TRUE;
400     no_wait_return = TRUE;
401 
402     init_mappings();		// set up initial mappings
403 
404     init_highlight(TRUE, FALSE); // set the default highlight groups
405     TIME_MSG("init highlight");
406 
407 #if defined(FEAT_TERMRESPONSE)
408     init_term_props(TRUE);
409 #endif
410 
411 #ifdef FEAT_EVAL
412     // Set the break level after the terminal is initialized.
413     debug_break_level = params.use_debug_break_level;
414 #endif
415 
416     // Reset 'loadplugins' for "-u NONE" before "--cmd" arguments.
417     // Allows for setting 'loadplugins' there.
418     if (params.use_vimrc != NULL
419 	    && (STRCMP(params.use_vimrc, "NONE") == 0
420 		|| STRCMP(params.use_vimrc, "DEFAULTS") == 0))
421 	p_lpl = FALSE;
422 
423     // Execute --cmd arguments.
424     exe_pre_commands(&params);
425 
426     // Source startup scripts.
427     source_startup_scripts(&params);
428 
429 #ifdef FEAT_MZSCHEME
430     /*
431      * Newer version of MzScheme (Racket) require earlier (trampolined)
432      * initialisation via scheme_main_setup.
433      * Implement this by initialising it as early as possible
434      * and splitting off remaining Vim main into vim_main2().
435      * Do source startup scripts, so that 'mzschemedll' can be set.
436      */
437     return mzscheme_main();
438 #else
439     return vim_main2();
440 #endif
441 }
442 #endif // NO_VIM_MAIN
443 #endif // PROTO
444 
445 /*
446  * vim_main2() is needed for FEAT_MZSCHEME, but we define it always to keep
447  * things simple.
448  * It is also defined when NO_VIM_MAIN is defined, but then it's empty.
449  */
450     int
451 vim_main2(void)
452 {
453 #ifndef NO_VIM_MAIN
454 #ifdef FEAT_EVAL
455     /*
456      * Read all the plugin files.
457      * Only when compiled with +eval, since most plugins need it.
458      */
459     if (p_lpl)
460     {
461 	char_u *rtp_copy = NULL;
462 
463 	// First add all package directories to 'runtimepath', so that their
464 	// autoload directories can be found.  Only if not done already with a
465 	// :packloadall command.
466 	// Make a copy of 'runtimepath', so that source_runtime does not use
467 	// the pack directories.
468 	if (!did_source_packages)
469 	{
470 	    rtp_copy = vim_strsave(p_rtp);
471 	    add_pack_start_dirs();
472 	}
473 
474 	source_in_path(rtp_copy == NULL ? p_rtp : rtp_copy,
475 # ifdef VMS	// Somehow VMS doesn't handle the "**".
476 		(char_u *)"plugin/*.vim",
477 # else
478 		(char_u *)"plugin/**/*.vim",
479 # endif
480 		DIP_ALL | DIP_NOAFTER, NULL);
481 	TIME_MSG("loading plugins");
482 	vim_free(rtp_copy);
483 
484 	// Only source "start" packages if not done already with a :packloadall
485 	// command.
486 	if (!did_source_packages)
487 	    load_start_packages();
488 	TIME_MSG("loading packages");
489 
490 # ifdef VMS	// Somehow VMS doesn't handle the "**".
491 	source_runtime((char_u *)"plugin/*.vim", DIP_ALL | DIP_AFTER);
492 # else
493 	source_runtime((char_u *)"plugin/**/*.vim", DIP_ALL | DIP_AFTER);
494 # endif
495 	TIME_MSG("loading after plugins");
496 
497     }
498 #endif
499 
500 #ifdef FEAT_DIFF
501     // Decide about window layout for diff mode after reading vimrc.
502     if (params.diff_mode && params.window_layout == 0)
503     {
504 	if (diffopt_horizontal())
505 	    params.window_layout = WIN_HOR;	// use horizontal split
506 	else
507 	    params.window_layout = WIN_VER;	// use vertical split
508     }
509 #endif
510 
511     /*
512      * Recovery mode without a file name: List swap files.
513      * This uses the 'dir' option, therefore it must be after the
514      * initializations.
515      */
516     if (recoverymode && params.fname == NULL)
517     {
518 	recover_names(NULL, TRUE, 0, NULL);
519 	mch_exit(0);
520     }
521 
522     /*
523      * Set a few option defaults after reading .vimrc files:
524      * 'title' and 'icon', Unix: 'shellpipe' and 'shellredir'.
525      */
526     set_init_3();
527     TIME_MSG("inits 3");
528 
529     /*
530      * "-n" argument: Disable swap file by setting 'updatecount' to 0.
531      * Note that this overrides anything from a vimrc file.
532      */
533     if (params.no_swap_file)
534 	p_uc = 0;
535 
536 #ifdef FEAT_GUI
537     if (gui.starting)
538     {
539 # if defined(UNIX) || defined(VMS)
540 	// When something caused a message from a vimrc script, need to output
541 	// an extra newline before the shell prompt.
542 	if (did_emsg || msg_didout)
543 	    putchar('\n');
544 # endif
545 
546 	gui_start(NULL);		// will set full_screen to TRUE
547 	TIME_MSG("starting GUI");
548 
549 	// When running "evim" or "gvim -y" we need the menus, exit if we
550 	// don't have them.
551 	if (!gui.in_use && params.evim_mode)
552 	    mch_exit(1);
553     }
554 #endif
555 
556 #ifdef FEAT_VIMINFO
557     /*
558      * Read in registers, history etc, but not marks, from the viminfo file.
559      * This is where v:oldfiles gets filled.
560      */
561     if (*p_viminfo != NUL)
562     {
563 	read_viminfo(NULL, VIF_WANT_INFO | VIF_GET_OLDFILES);
564 	TIME_MSG("reading viminfo");
565     }
566 #endif
567 #ifdef FEAT_EVAL
568     // It's better to make v:oldfiles an empty list than NULL.
569     if (get_vim_var_list(VV_OLDFILES) == NULL)
570 	set_vim_var_list(VV_OLDFILES, list_alloc());
571 #endif
572 
573 #ifdef FEAT_QUICKFIX
574     /*
575      * "-q errorfile": Load the error file now.
576      * If the error file can't be read, exit before doing anything else.
577      */
578     if (params.edit_type == EDIT_QF)
579     {
580 	char_u	*enc = NULL;
581 
582 	enc = p_menc;
583 	if (params.use_ef != NULL)
584 	    set_string_option_direct((char_u *)"ef", -1,
585 					   params.use_ef, OPT_FREE, SID_CARG);
586 	vim_snprintf((char *)IObuff, IOSIZE, "cfile %s", p_ef);
587 	if (qf_init(NULL, p_ef, p_efm, TRUE, IObuff, enc) < 0)
588 	{
589 	    out_char('\n');
590 	    mch_exit(3);
591 	}
592 	TIME_MSG("reading errorfile");
593     }
594 #endif
595 
596     /*
597      * Start putting things on the screen.
598      * Scroll screen down before drawing over it
599      * Clear screen now, so file message will not be cleared.
600      */
601     starting = NO_BUFFERS;
602     no_wait_return = FALSE;
603     if (!exmode_active)
604 	msg_scroll = FALSE;
605 
606 #ifdef FEAT_GUI
607     /*
608      * This seems to be required to make callbacks to be called now, instead
609      * of after things have been put on the screen, which then may be deleted
610      * when getting a resize callback.
611      * For the Mac this handles putting files dropped on the Vim icon to
612      * global_alist.
613      */
614     if (gui.in_use)
615     {
616 	gui_wait_for_chars(50L, typebuf.tb_change_cnt);
617 	TIME_MSG("GUI delay");
618     }
619 #endif
620 
621 #if defined(FEAT_GUI_PHOTON) && defined(FEAT_CLIPBOARD)
622     qnx_clip_init();
623 #endif
624 
625 #if defined(MACOS_X) && defined(FEAT_CLIPBOARD)
626     clip_init(TRUE);
627 #endif
628 
629 #ifdef FEAT_XCLIPBOARD
630     // Start using the X clipboard, unless the GUI was started.
631 # ifdef FEAT_GUI
632     if (!gui.in_use)
633 # endif
634     {
635 	setup_term_clip();
636 	TIME_MSG("setup clipboard");
637     }
638 #endif
639 
640 #ifdef FEAT_CLIENTSERVER
641     // Prepare for being a Vim server.
642     prepare_server(&params);
643 #endif
644 
645     /*
646      * If "-" argument given: Read file from stdin.
647      * Do this before starting Raw mode, because it may change things that the
648      * writing end of the pipe doesn't like, e.g., in case stdin and stderr
649      * are the same terminal: "cat | vim -".
650      * Using autocommands here may cause trouble...
651      */
652     if (params.edit_type == EDIT_STDIN && !recoverymode)
653 	read_stdin();
654 
655 #if defined(UNIX) || defined(VMS)
656     // When switching screens and something caused a message from a vimrc
657     // script, need to output an extra newline on exit.
658     if ((did_emsg || msg_didout) && *T_TI != NUL)
659 	newline_on_exit = TRUE;
660 #endif
661 
662     /*
663      * When done something that is not allowed or error message call
664      * wait_return.  This must be done before starttermcap(), because it may
665      * switch to another screen. It must be done after settmode(TMODE_RAW),
666      * because we want to react on a single key stroke.
667      * Call settmode and starttermcap here, so the T_KS and T_TI may be
668      * defined by termcapinit and redefined in .exrc.
669      */
670     settmode(TMODE_RAW);
671     TIME_MSG("setting raw mode");
672 
673     if (need_wait_return || msg_didany)
674     {
675 	wait_return(TRUE);
676 	TIME_MSG("waiting for return");
677     }
678 
679     starttermcap();	    // start termcap if not done by wait_return()
680     TIME_MSG("start termcap");
681 
682     setmouse();				// may start using the mouse
683     if (scroll_region)
684 	scroll_region_reset();		// In case Rows changed
685     scroll_start();	// may scroll the screen to the right position
686 
687 #if defined(FEAT_TITLE) && (defined(UNIX) || defined(VMS) || defined(MACOS_X))
688     term_push_title(SAVE_RESTORE_BOTH);
689 #endif
690 
691     /*
692      * Don't clear the screen when starting in Ex mode, unless using the GUI.
693      */
694     if (exmode_active
695 #ifdef FEAT_GUI
696 			&& !gui.in_use
697 #endif
698 					)
699 	must_redraw = CLEAR;
700     else
701     {
702 	screenclear();			// clear screen
703 	TIME_MSG("clearing screen");
704     }
705 
706 #ifdef FEAT_CRYPT
707     if (params.ask_for_key)
708     {
709 	crypt_check_current_method();
710 	(void)crypt_get_key(TRUE, TRUE);
711 	TIME_MSG("getting crypt key");
712     }
713 #endif
714 
715     no_wait_return = TRUE;
716 
717     /*
718      * Create the requested number of windows and edit buffers in them.
719      * Also does recovery if "recoverymode" set.
720      */
721     create_windows(&params);
722     TIME_MSG("opening buffers");
723 
724 #ifdef FEAT_EVAL
725     // clear v:swapcommand
726     set_vim_var_string(VV_SWAPCOMMAND, NULL, -1);
727 #endif
728 
729     // Ex starts at last line of the file
730     if (exmode_active)
731 	curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
732 
733     apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf);
734     TIME_MSG("BufEnter autocommands");
735     setpcmark();
736 
737 #ifdef FEAT_QUICKFIX
738     /*
739      * When started with "-q errorfile" jump to first error now.
740      */
741     if (params.edit_type == EDIT_QF)
742     {
743 	qf_jump(NULL, 0, 0, FALSE);
744 	TIME_MSG("jump to first error");
745     }
746 #endif
747 
748     /*
749      * If opened more than one window, start editing files in the other
750      * windows.
751      */
752     edit_buffers(&params, start_dir);
753     vim_free(start_dir);
754 
755 #ifdef FEAT_DIFF
756     if (params.diff_mode)
757     {
758 	win_T	*wp;
759 
760 	// set options in each window for "vimdiff".
761 	FOR_ALL_WINDOWS(wp)
762 	    diff_win_options(wp, TRUE);
763     }
764 #endif
765 
766     /*
767      * Shorten any of the filenames, but only when absolute.
768      */
769     shorten_fnames(FALSE);
770 
771     /*
772      * Need to jump to the tag before executing the '-c command'.
773      * Makes "vim -c '/return' -t main" work.
774      */
775     if (params.tagname != NULL)
776     {
777 	swap_exists_did_quit = FALSE;
778 
779 	vim_snprintf((char *)IObuff, IOSIZE, "ta %s", params.tagname);
780 	do_cmdline_cmd(IObuff);
781 	TIME_MSG("jumping to tag");
782 
783 	// If the user doesn't want to edit the file then we quit here.
784 	if (swap_exists_did_quit)
785 	    getout(1);
786     }
787 
788     // Execute any "+", "-c" and "-S" arguments.
789     if (params.n_commands > 0)
790 	exe_commands(&params);
791 
792     // Must come before the may_req_ calls.
793     starting = 0;
794 
795 #if defined(FEAT_TERMRESPONSE)
796     // Must be done before redrawing, puts a few characters on the screen.
797     check_terminal_behavior();
798 #endif
799 
800     RedrawingDisabled = 0;
801     redraw_all_later(NOT_VALID);
802     no_wait_return = FALSE;
803 
804     // 'autochdir' has been postponed
805     DO_AUTOCHDIR;
806 
807 #ifdef FEAT_TERMRESPONSE
808     // Requesting the termresponse is postponed until here, so that a "-c q"
809     // argument doesn't make it appear in the shell Vim was started from.
810     may_req_termresponse();
811 
812     may_req_bg_color();
813 #endif
814 
815     // start in insert mode
816     if (p_im)
817 	need_start_insertmode = TRUE;
818 
819 #ifdef FEAT_EVAL
820     set_vim_var_nr(VV_VIM_DID_ENTER, 1L);
821 #endif
822     apply_autocmds(EVENT_VIMENTER, NULL, NULL, FALSE, curbuf);
823     TIME_MSG("VimEnter autocommands");
824 
825 #if defined(FEAT_EVAL) && defined(FEAT_CLIPBOARD)
826     // Adjust default register name for "unnamed" in 'clipboard'. Can only be
827     // done after the clipboard is available and all initial commands that may
828     // modify the 'clipboard' setting have run; i.e. just before entering the
829     // main loop.
830     reset_reg_var();
831 #endif
832 
833 #if defined(FEAT_DIFF)
834     // When a startup script or session file setup for diff'ing and
835     // scrollbind, sync the scrollbind now.
836     if (curwin->w_p_diff && curwin->w_p_scb)
837     {
838 	update_topline();
839 	check_scrollbind((linenr_T)0, 0L);
840 	TIME_MSG("diff scrollbinding");
841     }
842 #endif
843 
844 #if defined(MSWIN) && (!defined(FEAT_GUI_MSWIN) || defined(VIMDLL))
845 # ifdef VIMDLL
846     if (!gui.in_use)
847 # endif
848 	mch_set_winsize_now();	    // Allow winsize changes from now on
849 #endif
850 
851 #if defined(FEAT_GUI)
852     // When tab pages were created, may need to update the tab pages line and
853     // scrollbars.  This is skipped while creating them.
854     if (first_tabpage->tp_next != NULL)
855     {
856 	out_flush();
857 	gui_init_which_components(NULL);
858 	gui_update_scrollbars(TRUE);
859     }
860     need_mouse_correct = TRUE;
861 #endif
862 
863     // If ":startinsert" command used, stuff a dummy command to be able to
864     // call normal_cmd(), which will then start Insert mode.
865     if (restart_edit != 0)
866 	stuffcharReadbuff(K_NOP);
867 
868 #ifdef FEAT_NETBEANS_INTG
869     if (netbeansArg != NULL && strncmp("-nb", netbeansArg, 3) == 0)
870     {
871 # ifdef FEAT_GUI
872 #  if !defined(FEAT_GUI_X11) && !defined(FEAT_GUI_GTK)  \
873 		&& !defined(FEAT_GUI_MSWIN)
874 	if (gui.in_use)
875 	{
876 	    mch_errmsg(_("netbeans is not supported with this GUI\n"));
877 	    mch_exit(2);
878 	}
879 #  endif
880 # endif
881 	// Tell the client that it can start sending commands.
882 	netbeans_open(netbeansArg + 3, TRUE);
883     }
884 #endif
885 
886     // Redraw at least once, also when 'lazyredraw' is set, to make sure the
887     // window title gets updated.
888     do_redraw = TRUE;
889 
890     TIME_MSG("before starting main loop");
891 
892     /*
893      * Call the main command loop.  This never returns.
894      */
895     main_loop(FALSE, FALSE);
896 
897 #endif // NO_VIM_MAIN
898 
899     return 0;
900 }
901 
902 /*
903  * Initialisation shared by main() and some tests.
904  */
905     void
906 common_init(mparm_T *paramp)
907 {
908     estack_init();
909     cmdline_init();
910 
911     (void)mb_init();	// init mb_bytelen_tab[] to ones
912 #ifdef FEAT_EVAL
913     eval_init();	// init global variables
914 #endif
915 
916 #ifdef __QNXNTO__
917     qnx_init();		// PhAttach() for clipboard, (and gui)
918 #endif
919 
920     // Init the table of Normal mode commands.
921     init_normal_cmds();
922 
923     /*
924      * Allocate space for the generic buffers (needed for set_init_1() and
925      * emsg()).
926      */
927     if ((IObuff = alloc(IOSIZE)) == NULL
928 	    || (NameBuff = alloc(MAXPATHL)) == NULL)
929 	mch_exit(0);
930     TIME_MSG("Allocated generic buffers");
931 
932 #ifdef NBDEBUG
933     // Wait a moment for debugging NetBeans.  Must be after allocating
934     // NameBuff.
935     nbdebug_log_init("SPRO_GVIM_DEBUG", "SPRO_GVIM_DLEVEL");
936     nbdebug_wait(WT_ENV | WT_WAIT | WT_STOP, "SPRO_GVIM_WAIT", 20);
937     TIME_MSG("NetBeans debug wait");
938 #endif
939 
940 #if defined(HAVE_LOCALE_H) || defined(X_LOCALE)
941     /*
942      * Setup to use the current locale (for ctype() and many other things).
943      * NOTE: Translated messages with encodings other than latin1 will not
944      * work until set_init_1() has been called!
945      */
946     init_locale();
947     TIME_MSG("locale set");
948 #endif
949 
950 #ifdef FEAT_GUI
951     gui.dofork = TRUE;		    // default is to use fork()
952 #endif
953 
954     /*
955      * Do a first scan of the arguments in "argv[]":
956      *   -display or --display
957      *   --server...
958      *   --socketid
959      *   --windowid
960      */
961     early_arg_scan(paramp);
962 
963 #if defined(FEAT_GUI)
964     // Prepare for possibly starting GUI sometime
965     gui_prepare(&paramp->argc, paramp->argv);
966     TIME_MSG("GUI prepared");
967 #endif
968 
969 #ifdef FEAT_CLIPBOARD
970     clip_init(FALSE);		// Initialise clipboard stuff
971     TIME_MSG("clipboard setup");
972 #endif
973 
974     /*
975      * Check if we have an interactive window.
976      * On the Amiga: If there is no window, we open one with a newcli command
977      * (needed for :! to * work). mch_check_win() will also handle the -d or
978      * -dev argument.
979      */
980     stdout_isatty = (mch_check_win(paramp->argc, paramp->argv) != FAIL);
981     TIME_MSG("window checked");
982 
983     /*
984      * Allocate the first window and buffer.
985      * Can't do anything without it, exit when it fails.
986      */
987     if (win_alloc_first() == FAIL)
988 	mch_exit(0);
989 
990     init_yank();		// init yank buffers
991 
992     alist_init(&global_alist);	// Init the argument list to empty.
993     global_alist.id = 0;
994 
995     /*
996      * Set the default values for the options.
997      * NOTE: Non-latin1 translated messages are working only after this,
998      * because this is where "has_mbyte" will be set, which is used by
999      * msg_outtrans_len_attr().
1000      * First find out the home directory, needed to expand "~" in options.
1001      */
1002     init_homedir();		// find real value of $HOME
1003     set_init_1(paramp->clean);
1004     TIME_MSG("inits 1");
1005 
1006 #ifdef FEAT_EVAL
1007     // set v:lang and v:ctype
1008     set_lang_var();
1009 
1010     // set v:argv
1011     set_argv_var(paramp->argv, paramp->argc);
1012 #endif
1013 
1014 #ifdef FEAT_SIGNS
1015     init_signs();
1016 #endif
1017 }
1018 
1019 /*
1020  * Return TRUE when the --not-a-term argument was found.
1021  */
1022     int
1023 is_not_a_term()
1024 {
1025     return params.not_a_term;
1026 }
1027 
1028 
1029 // When TRUE in a safe state when starting to wait for a character.
1030 static int	was_safe = FALSE;
1031 static oparg_T	*current_oap = NULL;
1032 
1033 /*
1034  * Return TRUE if an operator was started but not finished yet.
1035  * Includes typing a count or a register name.
1036  */
1037     int
1038 op_pending(void)
1039 {
1040     return !(current_oap != NULL
1041 	    && !finish_op
1042 	    && current_oap->prev_opcount == 0
1043 	    && current_oap->prev_count0 == 0
1044 	    && current_oap->op_type == OP_NOP
1045 	    && current_oap->regname == NUL);
1046 }
1047 
1048 /*
1049  * Return whether currently it is safe, assuming it was safe before (high level
1050  * state didn't change).
1051  */
1052     static int
1053 is_safe_now(void)
1054 {
1055     return stuff_empty()
1056 	&& typebuf.tb_len == 0
1057 	&& scriptin[curscript] == NULL
1058 	&& !global_busy;
1059 }
1060 
1061 /*
1062  * Trigger SafeState if currently in s safe state, that is "safe" is TRUE and
1063  * there is no typeahead.
1064  */
1065     void
1066 may_trigger_safestate(int safe)
1067 {
1068     int is_safe = safe && is_safe_now();
1069 
1070 #ifdef FEAT_JOB_CHANNEL
1071     if (was_safe != is_safe)
1072 	// Only log when the state changes, otherwise it happens at nearly
1073 	// every key stroke.
1074 	ch_log(NULL, is_safe ? "SafeState: Start triggering"
1075 					       : "SafeState: Stop triggering");
1076 #endif
1077     if (is_safe)
1078 	apply_autocmds(EVENT_SAFESTATE, NULL, NULL, FALSE, curbuf);
1079     was_safe = is_safe;
1080 }
1081 
1082 /*
1083  * Something changed which causes the state possibly to be unsafe, e.g. a
1084  * character was typed.  It will remain unsafe until the next call to
1085  * may_trigger_safestate().
1086  */
1087     void
1088 state_no_longer_safe(char *reason UNUSED)
1089 {
1090 #ifdef FEAT_JOB_CHANNEL
1091     if (was_safe)
1092 	ch_log(NULL, "SafeState: reset: %s", reason);
1093 #endif
1094     was_safe = FALSE;
1095 }
1096 
1097     int
1098 get_was_safe_state(void)
1099 {
1100     return was_safe;
1101 }
1102 
1103 /*
1104  * Invoked when leaving code that invokes callbacks.  Then trigger
1105  * SafeStateAgain, if it was safe when starting to wait for a character.
1106  */
1107     void
1108 may_trigger_safestateagain(void)
1109 {
1110     if (!was_safe)
1111     {
1112 	// If the safe state was reset in state_no_longer_safe(), e.g. because
1113 	// of calling feedkeys(), we check if it's now safe again (all keys
1114 	// were consumed).
1115 	was_safe = is_safe_now();
1116 #ifdef FEAT_JOB_CHANNEL
1117 	if (was_safe)
1118 	    ch_log(NULL, "SafeState: undo reset");
1119 #endif
1120     }
1121     if (was_safe)
1122     {
1123 #ifdef FEAT_JOB_CHANNEL
1124 	// Only do this message when another message was given, otherwise we
1125 	// get lots of them.
1126 	if ((did_repeated_msg & REPEATED_MSG_SAFESTATE) == 0)
1127 	{
1128 	    int did = did_repeated_msg;
1129 
1130 	    ch_log(NULL,
1131 		      "SafeState: back to waiting, triggering SafeStateAgain");
1132 	    did_repeated_msg = did | REPEATED_MSG_SAFESTATE;
1133 	}
1134 #endif
1135 	apply_autocmds(EVENT_SAFESTATEAGAIN, NULL, NULL, FALSE, curbuf);
1136     }
1137 #ifdef FEAT_JOB_CHANNEL
1138     else
1139 	ch_log(NULL,
1140 		  "SafeState: back to waiting, not triggering SafeStateAgain");
1141 #endif
1142 }
1143 
1144 
1145 /*
1146  * Main loop: Execute Normal mode commands until exiting Vim.
1147  * Also used to handle commands in the command-line window, until the window
1148  * is closed.
1149  * Also used to handle ":visual" command after ":global": execute Normal mode
1150  * commands, return when entering Ex mode.  "noexmode" is TRUE then.
1151  */
1152     void
1153 main_loop(
1154     int		cmdwin,	    // TRUE when working in the command-line window
1155     int		noexmode)   // TRUE when return on entering Ex mode
1156 {
1157     oparg_T	oa;		// operator arguments
1158     oparg_T	*prev_oap;	// operator arguments
1159     volatile int previous_got_int = FALSE;	// "got_int" was TRUE
1160 #ifdef FEAT_CONCEAL
1161     // these are static to avoid a compiler warning
1162     static linenr_T	conceal_old_cursor_line = 0;
1163     static linenr_T	conceal_new_cursor_line = 0;
1164     static int		conceal_update_lines = FALSE;
1165 #endif
1166 
1167     prev_oap = current_oap;
1168     current_oap = &oa;
1169 
1170 #if defined(FEAT_X11) && defined(FEAT_XCLIPBOARD)
1171     // Setup to catch a terminating error from the X server.  Just ignore
1172     // it, restore the state and continue.  This might not always work
1173     // properly, but at least we don't exit unexpectedly when the X server
1174     // exits while Vim is running in a console.
1175     if (!cmdwin && !noexmode && SETJMP(x_jump_env))
1176     {
1177 	State = NORMAL;
1178 	VIsual_active = FALSE;
1179 	got_int = TRUE;
1180 	need_wait_return = FALSE;
1181 	global_busy = FALSE;
1182 	exmode_active = 0;
1183 	skip_redraw = FALSE;
1184 	RedrawingDisabled = 0;
1185 	no_wait_return = 0;
1186 	vgetc_busy = 0;
1187 # ifdef FEAT_EVAL
1188 	emsg_skip = 0;
1189 # endif
1190 	emsg_off = 0;
1191 	setmouse();
1192 	settmode(TMODE_RAW);
1193 	starttermcap();
1194 	scroll_start();
1195 	redraw_later_clear();
1196     }
1197 #endif
1198 
1199     clear_oparg(&oa);
1200     while (!cmdwin
1201 #ifdef FEAT_CMDWIN
1202 	    || cmdwin_result == 0
1203 #endif
1204 	    )
1205     {
1206 	if (stuff_empty())
1207 	{
1208 	    did_check_timestamps = FALSE;
1209 	    if (need_check_timestamps)
1210 		check_timestamps(FALSE);
1211 	    if (need_wait_return)	// if wait_return still needed ...
1212 		wait_return(FALSE);	// ... call it now
1213 	    if (need_start_insertmode && goto_im() && !VIsual_active)
1214 	    {
1215 		need_start_insertmode = FALSE;
1216 		stuffReadbuff((char_u *)"i");	// start insert mode next
1217 		// skip the fileinfo message now, because it would be shown
1218 		// after insert mode finishes!
1219 		need_fileinfo = FALSE;
1220 	    }
1221 	}
1222 
1223 	// Reset "got_int" now that we got back to the main loop.  Except when
1224 	// inside a ":g/pat/cmd" command, then the "got_int" needs to abort
1225 	// the ":g" command.
1226 	// For ":g/pat/vi" we reset "got_int" when used once.  When used
1227 	// a second time we go back to Ex mode and abort the ":g" command.
1228 	if (got_int)
1229 	{
1230 	    if (noexmode && global_busy && !exmode_active && previous_got_int)
1231 	    {
1232 		// Typed two CTRL-C in a row: go back to ex mode as if "Q" was
1233 		// used and keep "got_int" set, so that it aborts ":g".
1234 		exmode_active = EXMODE_NORMAL;
1235 		State = NORMAL;
1236 	    }
1237 	    else if (!global_busy || !exmode_active)
1238 	    {
1239 		if (!quit_more)
1240 		    (void)vgetc();		// flush all buffers
1241 		got_int = FALSE;
1242 	    }
1243 	    previous_got_int = TRUE;
1244 	}
1245 	else
1246 	    previous_got_int = FALSE;
1247 
1248 	if (!exmode_active)
1249 	    msg_scroll = FALSE;
1250 	quit_more = FALSE;
1251 
1252 	// it's not safe unless may_trigger_safestate_main() is called
1253 	was_safe = FALSE;
1254 
1255 	/*
1256 	 * If skip redraw is set (for ":" in wait_return()), don't redraw now.
1257 	 * If there is nothing in the stuff_buffer or do_redraw is TRUE,
1258 	 * update cursor and redraw.
1259 	 */
1260 	if (skip_redraw || exmode_active)
1261 	    skip_redraw = FALSE;
1262 	else if (do_redraw || stuff_empty())
1263 	{
1264 #ifdef FEAT_GUI
1265 	    // If ui_breakcheck() was used a resize may have been postponed.
1266 	    gui_may_resize_shell();
1267 #endif
1268 #ifdef HAVE_DROP_FILE
1269 	    // If files were dropped while text was locked or the curbuf was
1270 	    // locked, this would be a good time to handle the drop.
1271 	    handle_any_postponed_drop();
1272 #endif
1273 #ifdef FEAT_CONCEAL
1274 	    if (curwin->w_p_cole == 0)
1275 		conceal_update_lines = FALSE;
1276 #endif
1277 
1278 	    // Trigger CursorMoved if the cursor moved.
1279 	    if (!finish_op && (
1280 			has_cursormoved()
1281 #ifdef FEAT_PROP_POPUP
1282 			|| popup_visible
1283 #endif
1284 #ifdef FEAT_CONCEAL
1285 			|| curwin->w_p_cole > 0
1286 #endif
1287 			)
1288 		 && !EQUAL_POS(last_cursormoved, curwin->w_cursor))
1289 	    {
1290 		if (has_cursormoved())
1291 		    apply_autocmds(EVENT_CURSORMOVED, NULL, NULL,
1292 							       FALSE, curbuf);
1293 #ifdef FEAT_PROP_POPUP
1294 		if (popup_visible)
1295 		    popup_check_cursor_pos();
1296 #endif
1297 #ifdef FEAT_CONCEAL
1298 		if (curwin->w_p_cole > 0)
1299 		{
1300 		    conceal_old_cursor_line = last_cursormoved.lnum;
1301 		    conceal_new_cursor_line = curwin->w_cursor.lnum;
1302 		    conceal_update_lines = TRUE;
1303 		}
1304 #endif
1305 		last_cursormoved = curwin->w_cursor;
1306 	    }
1307 
1308 #if defined(FEAT_CONCEAL)
1309 	    if (conceal_update_lines
1310 		    && (conceal_old_cursor_line != conceal_new_cursor_line
1311 			|| conceal_cursor_line(curwin)
1312 			|| need_cursor_line_redraw))
1313 	    {
1314 		if (conceal_old_cursor_line != conceal_new_cursor_line
1315 			&& conceal_old_cursor_line != 0
1316 			&& conceal_old_cursor_line
1317 						<= curbuf->b_ml.ml_line_count)
1318 		    redrawWinline(curwin, conceal_old_cursor_line);
1319 		redrawWinline(curwin, conceal_new_cursor_line);
1320 		curwin->w_valid &= ~VALID_CROW;
1321 		need_cursor_line_redraw = FALSE;
1322 	    }
1323 #endif
1324 
1325 	    // Trigger TextChanged if b:changedtick differs.
1326 	    if (!finish_op && has_textchanged()
1327 		    && curbuf->b_last_changedtick != CHANGEDTICK(curbuf))
1328 	    {
1329 		apply_autocmds(EVENT_TEXTCHANGED, NULL, NULL, FALSE, curbuf);
1330 		curbuf->b_last_changedtick = CHANGEDTICK(curbuf);
1331 	    }
1332 
1333 	    // If nothing is pending and we are going to wait for the user to
1334 	    // type a character, trigger SafeState.
1335 	    may_trigger_safestate(!op_pending() && restart_edit == 0);
1336 
1337 #if defined(FEAT_DIFF)
1338 	    // Updating diffs from changed() does not always work properly,
1339 	    // esp. updating folds.  Do an update just before redrawing if
1340 	    // needed.
1341 	    if (curtab->tp_diff_update || curtab->tp_diff_invalid)
1342 	    {
1343 		ex_diffupdate(NULL);
1344 		curtab->tp_diff_update = FALSE;
1345 	    }
1346 
1347 	    // Scroll-binding for diff mode may have been postponed until
1348 	    // here.  Avoids doing it for every change.
1349 	    if (diff_need_scrollbind)
1350 	    {
1351 		check_scrollbind((linenr_T)0, 0L);
1352 		diff_need_scrollbind = FALSE;
1353 	    }
1354 #endif
1355 #if defined(FEAT_FOLDING)
1356 	    // Include a closed fold completely in the Visual area.
1357 	    foldAdjustVisual();
1358 #endif
1359 #ifdef FEAT_FOLDING
1360 	    /*
1361 	     * When 'foldclose' is set, apply 'foldlevel' to folds that don't
1362 	     * contain the cursor.
1363 	     * When 'foldopen' is "all", open the fold(s) under the cursor.
1364 	     * This may mark the window for redrawing.
1365 	     */
1366 	    if (hasAnyFolding(curwin) && !char_avail())
1367 	    {
1368 		foldCheckClose();
1369 		if (fdo_flags & FDO_ALL)
1370 		    foldOpenCursor();
1371 	    }
1372 #endif
1373 
1374 	    /*
1375 	     * Before redrawing, make sure w_topline is correct, and w_leftcol
1376 	     * if lines don't wrap, and w_skipcol if lines wrap.
1377 	     */
1378 	    update_topline();
1379 	    validate_cursor();
1380 
1381 #ifdef FEAT_SYN_HL
1382 	    // Might need to update for 'cursorline'.
1383 	    // When 'cursorlineopt' is "screenline" need to redraw always.
1384 	    if (curwin->w_p_cul
1385 		    && (curwin->w_last_cursorline != curwin->w_cursor.lnum
1386 			|| (curwin->w_p_culopt_flags & CULOPT_SCRLINE))
1387 		    && !char_avail())
1388 		redraw_later(VALID);
1389 #endif
1390 	    if (VIsual_active)
1391 		update_curbuf(INVERTED); // update inverted part
1392 	    else if (must_redraw)
1393 	    {
1394 		mch_disable_flush();	// Stop issuing gui_mch_flush().
1395 		update_screen(0);
1396 		mch_enable_flush();
1397 	    }
1398 	    else if (redraw_cmdline || clear_cmdline)
1399 		showmode();
1400 	    redraw_statuslines();
1401 #ifdef FEAT_TITLE
1402 	    if (need_maketitle)
1403 		maketitle();
1404 #endif
1405 #ifdef FEAT_VIMINFO
1406 	    curbuf->b_last_used = vim_time();
1407 #endif
1408 	    // display message after redraw
1409 	    if (keep_msg != NULL)
1410 	    {
1411 		char_u *p = vim_strsave(keep_msg);
1412 
1413 		if (p != NULL)
1414 		{
1415 		    // msg_start() will set keep_msg to NULL, make a copy
1416 		    // first.  Don't reset keep_msg, msg_attr_keep() uses it to
1417 		    // check for duplicates.  Never put this message in
1418 		    // history.
1419 		    msg_hist_off = TRUE;
1420 		    msg_attr((char *)p, keep_msg_attr);
1421 		    msg_hist_off = FALSE;
1422 		    vim_free(p);
1423 		}
1424 	    }
1425 	    if (need_fileinfo)		// show file info after redraw
1426 	    {
1427 		fileinfo(FALSE, TRUE, FALSE);
1428 		need_fileinfo = FALSE;
1429 	    }
1430 
1431 	    emsg_on_display = FALSE;	// can delete error message now
1432 	    did_emsg = FALSE;
1433 	    msg_didany = FALSE;		// reset lines_left in msg_start()
1434 	    may_clear_sb_text();	// clear scroll-back text on next msg
1435 	    showruler(FALSE);
1436 
1437 	    setcursor();
1438 	    cursor_on();
1439 
1440 	    do_redraw = FALSE;
1441 
1442 #ifdef STARTUPTIME
1443 	    // Now that we have drawn the first screen all the startup stuff
1444 	    // has been done, close any file for startup messages.
1445 	    if (time_fd != NULL)
1446 	    {
1447 		TIME_MSG("first screen update");
1448 		TIME_MSG("--- VIM STARTED ---");
1449 		fclose(time_fd);
1450 		time_fd = NULL;
1451 	    }
1452 #endif
1453 	}
1454 #ifdef FEAT_GUI
1455 	if (need_mouse_correct)
1456 	    gui_mouse_correct();
1457 #endif
1458 
1459 	/*
1460 	 * Update w_curswant if w_set_curswant has been set.
1461 	 * Postponed until here to avoid computing w_virtcol too often.
1462 	 */
1463 	update_curswant();
1464 
1465 #ifdef FEAT_EVAL
1466 	/*
1467 	 * May perform garbage collection when waiting for a character, but
1468 	 * only at the very toplevel.  Otherwise we may be using a List or
1469 	 * Dict internally somewhere.
1470 	 * "may_garbage_collect" is reset in vgetc() which is invoked through
1471 	 * do_exmode() and normal_cmd().
1472 	 */
1473 	may_garbage_collect = (!cmdwin && !noexmode);
1474 #endif
1475 	/*
1476 	 * If we're invoked as ex, do a round of ex commands.
1477 	 * Otherwise, get and execute a normal mode command.
1478 	 */
1479 	if (exmode_active)
1480 	{
1481 	    if (noexmode)   // End of ":global/path/visual" commands
1482 		goto theend;
1483 	    do_exmode(exmode_active == EXMODE_VIM);
1484 	}
1485 	else
1486 	{
1487 #ifdef FEAT_TERMINAL
1488 	    if (term_use_loop()
1489 		    && oa.op_type == OP_NOP && oa.regname == NUL
1490 		    && !VIsual_active
1491 		    && !skip_term_loop)
1492 	    {
1493 		// If terminal_loop() returns OK we got a key that is handled
1494 		// in Normal model.  With FAIL we first need to position the
1495 		// cursor and the screen needs to be redrawn.
1496 		if (terminal_loop(TRUE) == OK)
1497 		    normal_cmd(&oa, TRUE);
1498 	    }
1499 	    else
1500 #endif
1501 	    {
1502 #ifdef FEAT_TERMINAL
1503 		skip_term_loop = FALSE;
1504 #endif
1505 		normal_cmd(&oa, TRUE);
1506 	    }
1507 	}
1508     }
1509 
1510 theend:
1511     current_oap = prev_oap;
1512 }
1513 
1514 
1515 #if defined(USE_XSMP) || defined(FEAT_GUI) || defined(PROTO)
1516 /*
1517  * Exit, but leave behind swap files for modified buffers.
1518  */
1519     void
1520 getout_preserve_modified(int exitval)
1521 {
1522 # if defined(SIGHUP) && defined(SIG_IGN)
1523     // Ignore SIGHUP, because a dropped connection causes a read error, which
1524     // makes Vim exit and then handling SIGHUP causes various reentrance
1525     // problems.
1526     signal(SIGHUP, SIG_IGN);
1527 # endif
1528 
1529     ml_close_notmod();		    // close all not-modified buffers
1530     ml_sync_all(FALSE, FALSE);	    // preserve all swap files
1531     ml_close_all(FALSE);	    // close all memfiles, without deleting
1532     getout(exitval);		    // exit Vim properly
1533 }
1534 #endif
1535 
1536 
1537 /*
1538  * Exit properly.
1539  */
1540     void
1541 getout(int exitval)
1542 {
1543     exiting = TRUE;
1544 #if defined(FEAT_JOB_CHANNEL)
1545     ch_log(NULL, "Exiting...");
1546 #endif
1547 
1548     // When running in Ex mode an error causes us to exit with a non-zero exit
1549     // code.  POSIX requires this, although it's not 100% clear from the
1550     // standard.
1551     if (exmode_active)
1552 	exitval += ex_exitval;
1553 
1554     // Position the cursor on the last screen line, below all the text
1555 #ifdef FEAT_GUI
1556     if (!gui.in_use)
1557 #endif
1558 	windgoto((int)Rows - 1, 0);
1559 
1560 #if defined(FEAT_EVAL) || defined(FEAT_SYN_HL)
1561     // Optionally print hashtable efficiency.
1562     hash_debug_results();
1563 #endif
1564 
1565 #ifdef FEAT_GUI
1566     msg_didany = FALSE;
1567 #endif
1568 
1569     if (v_dying <= 1)
1570     {
1571 	tabpage_T	*tp;
1572 	tabpage_T	*next_tp;
1573 	buf_T		*buf;
1574 	win_T		*wp;
1575 	int		unblock = 0;
1576 
1577 	// Trigger BufWinLeave for all windows, but only once per buffer.
1578 	for (tp = first_tabpage; tp != NULL; tp = next_tp)
1579 	{
1580 	    next_tp = tp->tp_next;
1581 	    FOR_ALL_WINDOWS_IN_TAB(tp, wp)
1582 	    {
1583 		if (wp->w_buffer == NULL)
1584 		    // Autocmd must have close the buffer already, skip.
1585 		    continue;
1586 		buf = wp->w_buffer;
1587 		if (CHANGEDTICK(buf) != -1)
1588 		{
1589 		    bufref_T bufref;
1590 
1591 		    set_bufref(&bufref, buf);
1592 		    apply_autocmds(EVENT_BUFWINLEAVE, buf->b_fname,
1593 						    buf->b_fname, FALSE, buf);
1594 		    if (bufref_valid(&bufref))
1595 			CHANGEDTICK(buf) = -1;  // note we did it already
1596 
1597 		    // start all over, autocommands may mess up the lists
1598 		    next_tp = first_tabpage;
1599 		    break;
1600 		}
1601 	    }
1602 	}
1603 
1604 	// Trigger BufUnload for buffers that are loaded
1605 	FOR_ALL_BUFFERS(buf)
1606 	    if (buf->b_ml.ml_mfp != NULL)
1607 	    {
1608 		bufref_T bufref;
1609 
1610 		set_bufref(&bufref, buf);
1611 		apply_autocmds(EVENT_BUFUNLOAD, buf->b_fname, buf->b_fname,
1612 								  FALSE, buf);
1613 		if (!bufref_valid(&bufref))
1614 		    // autocmd deleted the buffer
1615 		    break;
1616 	    }
1617 
1618 	// deathtrap() blocks autocommands, but we do want to trigger
1619 	// VimLeavePre.
1620 	if (is_autocmd_blocked())
1621 	{
1622 	    unblock_autocmds();
1623 	    ++unblock;
1624 	}
1625 	apply_autocmds(EVENT_VIMLEAVEPRE, NULL, NULL, FALSE, curbuf);
1626 	if (unblock)
1627 	    block_autocmds();
1628     }
1629 
1630 #ifdef FEAT_VIMINFO
1631     if (*p_viminfo != NUL)
1632 	// Write out the registers, history, marks etc, to the viminfo file
1633 	write_viminfo(NULL, FALSE);
1634 #endif
1635 
1636     if (v_dying <= 1)
1637     {
1638 	int	unblock = 0;
1639 
1640 	// deathtrap() blocks autocommands, but we do want to trigger VimLeave.
1641 	if (is_autocmd_blocked())
1642 	{
1643 	    unblock_autocmds();
1644 	    ++unblock;
1645 	}
1646 	apply_autocmds(EVENT_VIMLEAVE, NULL, NULL, FALSE, curbuf);
1647 	if (unblock)
1648 	    block_autocmds();
1649     }
1650 
1651 #ifdef FEAT_PROFILE
1652     profile_dump();
1653 #endif
1654 
1655     if (did_emsg
1656 #ifdef FEAT_GUI
1657 	    || (gui.in_use && msg_didany && p_verbose > 0)
1658 #endif
1659 	    )
1660     {
1661 	// give the user a chance to read the (error) message
1662 	no_wait_return = FALSE;
1663 	wait_return(FALSE);
1664     }
1665 
1666     // Position the cursor again, the autocommands may have moved it
1667 #ifdef FEAT_GUI
1668     if (!gui.in_use)
1669 #endif
1670 	windgoto((int)Rows - 1, 0);
1671 
1672 #ifdef FEAT_JOB_CHANNEL
1673     job_stop_on_exit();
1674 #endif
1675 #ifdef FEAT_LUA
1676     lua_end();
1677 #endif
1678 #ifdef FEAT_MZSCHEME
1679     mzscheme_end();
1680 #endif
1681 #ifdef FEAT_TCL
1682     tcl_end();
1683 #endif
1684 #ifdef FEAT_RUBY
1685     ruby_end();
1686 #endif
1687 #ifdef FEAT_PYTHON
1688     python_end();
1689 #endif
1690 #ifdef FEAT_PYTHON3
1691     python3_end();
1692 #endif
1693 #ifdef FEAT_PERL
1694     perl_end();
1695 #endif
1696 #if defined(USE_ICONV) && defined(DYNAMIC_ICONV)
1697     iconv_end();
1698 #endif
1699 #ifdef FEAT_NETBEANS_INTG
1700     netbeans_end();
1701 #endif
1702 #ifdef FEAT_CSCOPE
1703     cs_end();
1704 #endif
1705 #ifdef FEAT_EVAL
1706     if (garbage_collect_at_exit)
1707 	garbage_collect(FALSE);
1708 #endif
1709 #ifdef MSWIN
1710     free_cmd_argsW();
1711 #endif
1712 
1713     mch_exit(exitval);
1714 }
1715 
1716 /*
1717  * Get the name of the display, before gui_prepare() removes it from
1718  * argv[].  Used for the xterm-clipboard display.
1719  *
1720  * Also find the --server... arguments and --socketid and --windowid
1721  */
1722     static void
1723 early_arg_scan(mparm_T *parmp UNUSED)
1724 {
1725 #if defined(FEAT_XCLIPBOARD) || defined(FEAT_CLIENTSERVER) \
1726 	|| !defined(FEAT_NETBEANS_INTG)
1727     int		argc = parmp->argc;
1728     char	**argv = parmp->argv;
1729     int		i;
1730 
1731     for (i = 1; i < argc; i++)
1732     {
1733 	if (STRCMP(argv[i], "--") == 0)
1734 	    break;
1735 # ifdef FEAT_XCLIPBOARD
1736 	else if (STRICMP(argv[i], "-display") == 0
1737 #  if defined(FEAT_GUI_GTK)
1738 		|| STRICMP(argv[i], "--display") == 0
1739 #  endif
1740 		)
1741 	{
1742 	    if (i == argc - 1)
1743 		mainerr_arg_missing((char_u *)argv[i]);
1744 	    xterm_display = argv[++i];
1745 	}
1746 # endif
1747 # ifdef FEAT_CLIENTSERVER
1748 	else if (STRICMP(argv[i], "--servername") == 0)
1749 	{
1750 	    if (i == argc - 1)
1751 		mainerr_arg_missing((char_u *)argv[i]);
1752 	    parmp->serverName_arg = (char_u *)argv[++i];
1753 	}
1754 	else if (STRICMP(argv[i], "--serverlist") == 0)
1755 	    parmp->serverArg = TRUE;
1756 	else if (STRNICMP(argv[i], "--remote", 8) == 0)
1757 	{
1758 	    parmp->serverArg = TRUE;
1759 #  ifdef FEAT_GUI
1760 	    if (strstr(argv[i], "-wait") != 0)
1761 		// don't fork() when starting the GUI to edit files ourself
1762 		gui.dofork = FALSE;
1763 #  endif
1764 	}
1765 # endif
1766 
1767 # if defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MSWIN)
1768 #  ifdef FEAT_GUI_MSWIN
1769 	else if (STRICMP(argv[i], "--windowid") == 0)
1770 #  else
1771 	else if (STRICMP(argv[i], "--socketid") == 0)
1772 #  endif
1773 	{
1774 	    long_u	id;
1775 	    int		count;
1776 
1777 	    if (i == argc - 1)
1778 		mainerr_arg_missing((char_u *)argv[i]);
1779 	    if (STRNICMP(argv[i+1], "0x", 2) == 0)
1780 		count = sscanf(&(argv[i + 1][2]), SCANF_HEX_LONG_U, &id);
1781 	    else
1782 		count = sscanf(argv[i + 1], SCANF_DECIMAL_LONG_U, &id);
1783 	    if (count != 1)
1784 		mainerr(ME_INVALID_ARG, (char_u *)argv[i]);
1785 	    else
1786 #  ifdef FEAT_GUI_MSWIN
1787 		win_socket_id = id;
1788 #  else
1789 		gtk_socket_id = id;
1790 #  endif
1791 	    i++;
1792 	}
1793 # endif
1794 # ifdef FEAT_GUI_GTK
1795 	else if (STRICMP(argv[i], "--echo-wid") == 0)
1796 	    echo_wid_arg = TRUE;
1797 # endif
1798 # ifndef FEAT_NETBEANS_INTG
1799 	else if (strncmp(argv[i], "-nb", (size_t)3) == 0)
1800 	{
1801 	    mch_errmsg(_("'-nb' cannot be used: not enabled at compile time\n"));
1802 	    mch_exit(2);
1803 	}
1804 # endif
1805 
1806     }
1807 #endif
1808 }
1809 
1810 #ifndef NO_VIM_MAIN
1811 /*
1812  * Get a (optional) count for a Vim argument.
1813  */
1814     static int
1815 get_number_arg(
1816     char_u	*p,	    // pointer to argument
1817     int		*idx,	    // index in argument, is incremented
1818     int		def)	    // default value
1819 {
1820     if (vim_isdigit(p[*idx]))
1821     {
1822 	def = atoi((char *)&(p[*idx]));
1823 	while (vim_isdigit(p[*idx]))
1824 	    *idx = *idx + 1;
1825     }
1826     return def;
1827 }
1828 
1829 /*
1830  * Check for: [r][e][g][vi|vim|view][diff][ex[im]]  (sort of)
1831  * If the executable name starts with "r" we disable shell commands.
1832  * If the next character is "e" we run in Easy mode.
1833  * If the next character is "g" we run the GUI version.
1834  * If the next characters are "view" we start in readonly mode.
1835  * If the next characters are "diff" or "vimdiff" we start in diff mode.
1836  * If the next characters are "ex" we start in Ex mode.  If it's followed
1837  * by "im" use improved Ex mode.
1838  */
1839     static void
1840 parse_command_name(mparm_T *parmp)
1841 {
1842     char_u	*initstr;
1843 
1844     initstr = gettail((char_u *)parmp->argv[0]);
1845 
1846 #ifdef FEAT_GUI_MAC
1847     // An issue has been seen when launching Vim in such a way that
1848     // $PWD/$ARGV[0] or $ARGV[0] is not the absolute path to the
1849     // executable or a symbolic link of it. Until this issue is resolved
1850     // we prohibit the GUI from being used.
1851     if (STRCMP(initstr, parmp->argv[0]) == 0)
1852 	disallow_gui = TRUE;
1853 
1854     // TODO: On MacOS X default to gui if argv[0] ends in:
1855     //       /Vim.app/Contents/MacOS/Vim
1856 #endif
1857 
1858 #ifdef FEAT_EVAL
1859     set_vim_var_string(VV_PROGNAME, initstr, -1);
1860     set_progpath((char_u *)parmp->argv[0]);
1861 #endif
1862 
1863     if (TOLOWER_ASC(initstr[0]) == 'r')
1864     {
1865 	restricted = TRUE;
1866 	++initstr;
1867     }
1868 
1869     // Use evim mode for "evim" and "egvim", not for "editor".
1870     if (TOLOWER_ASC(initstr[0]) == 'e'
1871 	    && (TOLOWER_ASC(initstr[1]) == 'v'
1872 		|| TOLOWER_ASC(initstr[1]) == 'g'))
1873     {
1874 #ifdef FEAT_GUI
1875 	gui.starting = TRUE;
1876 #endif
1877 	parmp->evim_mode = TRUE;
1878 	++initstr;
1879     }
1880 
1881     // "gvim" starts the GUI.  Also accept "Gvim" for MS-Windows.
1882     if (TOLOWER_ASC(initstr[0]) == 'g')
1883     {
1884 	main_start_gui();
1885 #ifdef FEAT_GUI
1886 	++initstr;
1887 #endif
1888 #ifdef GUI_MAY_SPAWN
1889 	gui.dospawn = FALSE;	// No need to spawn a new process.
1890 #endif
1891     }
1892 #ifdef GUI_MAY_SPAWN
1893     else
1894 	gui.dospawn = TRUE;	// Not "gvim". Need to spawn gvim.exe.
1895 #endif
1896 
1897 
1898     if (STRNICMP(initstr, "view", 4) == 0)
1899     {
1900 	readonlymode = TRUE;
1901 	curbuf->b_p_ro = TRUE;
1902 	p_uc = 10000;			// don't update very often
1903 	initstr += 4;
1904     }
1905     else if (STRNICMP(initstr, "vim", 3) == 0)
1906 	initstr += 3;
1907 
1908     // Catch "[r][g]vimdiff" and "[r][g]viewdiff".
1909     if (STRICMP(initstr, "diff") == 0)
1910     {
1911 #ifdef FEAT_DIFF
1912 	parmp->diff_mode = TRUE;
1913 #else
1914 	mch_errmsg(_("This Vim was not compiled with the diff feature."));
1915 	mch_errmsg("\n");
1916 	mch_exit(2);
1917 #endif
1918     }
1919 
1920     // Checking for "ex" here may catch some weird names, such as "vimex" or
1921     // "viewex", we assume the user knows that.
1922     if (STRNICMP(initstr, "ex", 2) == 0)
1923     {
1924 	if (STRNICMP(initstr + 2, "im", 2) == 0)
1925 	    exmode_active = EXMODE_VIM;
1926 	else
1927 	    exmode_active = EXMODE_NORMAL;
1928 	change_compatible(TRUE);	// set 'compatible'
1929     }
1930 }
1931 
1932 /*
1933  * Scan the command line arguments.
1934  */
1935     static void
1936 command_line_scan(mparm_T *parmp)
1937 {
1938     int		argc = parmp->argc;
1939     char	**argv = parmp->argv;
1940     int		argv_idx;		// index in argv[n][]
1941     int		had_minmin = FALSE;	// found "--" argument
1942     int		want_argument;		// option argument with argument
1943     int		c;
1944     char_u	*p = NULL;
1945     long	n;
1946 
1947     --argc;
1948     ++argv;
1949     argv_idx = 1;	    // active option letter is argv[0][argv_idx]
1950     while (argc > 0)
1951     {
1952 	/*
1953 	 * "+" or "+{number}" or "+/{pat}" or "+{command}" argument.
1954 	 */
1955 	if (argv[0][0] == '+' && !had_minmin)
1956 	{
1957 	    if (parmp->n_commands >= MAX_ARG_CMDS)
1958 		mainerr(ME_EXTRA_CMD, NULL);
1959 	    argv_idx = -1;	    // skip to next argument
1960 	    if (argv[0][1] == NUL)
1961 		parmp->commands[parmp->n_commands++] = (char_u *)"$";
1962 	    else
1963 		parmp->commands[parmp->n_commands++] = (char_u *)&(argv[0][1]);
1964 	}
1965 
1966 	/*
1967 	 * Optional argument.
1968 	 */
1969 	else if (argv[0][0] == '-' && !had_minmin)
1970 	{
1971 	    want_argument = FALSE;
1972 	    c = argv[0][argv_idx++];
1973 #ifdef VMS
1974 	    /*
1975 	     * VMS only uses upper case command lines.  Interpret "-X" as "-x"
1976 	     * and "-/X" as "-X".
1977 	     */
1978 	    if (c == '/')
1979 	    {
1980 		c = argv[0][argv_idx++];
1981 		c = TOUPPER_ASC(c);
1982 	    }
1983 	    else
1984 		c = TOLOWER_ASC(c);
1985 #endif
1986 	    switch (c)
1987 	    {
1988 	    case NUL:		// "vim -"  read from stdin
1989 				// "ex -" silent mode
1990 		if (exmode_active)
1991 		    silent_mode = TRUE;
1992 		else
1993 		{
1994 		    if (parmp->edit_type != EDIT_NONE)
1995 			mainerr(ME_TOO_MANY_ARGS, (char_u *)argv[0]);
1996 		    parmp->edit_type = EDIT_STDIN;
1997 		    read_cmd_fd = 2;	// read from stderr instead of stdin
1998 		}
1999 		argv_idx = -1;		// skip to next argument
2000 		break;
2001 
2002 	    case '-':		// "--" don't take any more option arguments
2003 				// "--help" give help message
2004 				// "--version" give version message
2005 				// "--clean" clean context
2006 				// "--literal" take files literally
2007 				// "--nofork" don't fork
2008 				// "--not-a-term" don't warn for not a term
2009 				// "--ttyfail" exit if not a term
2010 				// "--noplugin[s]" skip plugins
2011 				// "--cmd <cmd>" execute cmd before vimrc
2012 		if (STRICMP(argv[0] + argv_idx, "help") == 0)
2013 		    usage();
2014 		else if (STRICMP(argv[0] + argv_idx, "version") == 0)
2015 		{
2016 		    Columns = 80;	// need to init Columns
2017 		    info_message = TRUE; // use mch_msg(), not mch_errmsg()
2018 		    list_version();
2019 		    msg_putchar('\n');
2020 		    msg_didout = FALSE;
2021 		    mch_exit(0);
2022 		}
2023 		else if (STRNICMP(argv[0] + argv_idx, "clean", 5) == 0)
2024 		{
2025 		    parmp->use_vimrc = (char_u *)"DEFAULTS";
2026 #ifdef FEAT_GUI
2027 		    use_gvimrc = (char_u *)"NONE";
2028 #endif
2029 		    parmp->clean = TRUE;
2030 		    set_option_value((char_u *)"vif", 0L, (char_u *)"NONE", 0);
2031 		}
2032 		else if (STRNICMP(argv[0] + argv_idx, "literal", 7) == 0)
2033 		{
2034 #ifdef EXPAND_FILENAMES
2035 		    parmp->literal = TRUE;
2036 #endif
2037 		}
2038 		else if (STRNICMP(argv[0] + argv_idx, "nofork", 6) == 0)
2039 		{
2040 #ifdef FEAT_GUI
2041 		    gui.dofork = FALSE;	// don't fork() when starting GUI
2042 #endif
2043 		}
2044 		else if (STRNICMP(argv[0] + argv_idx, "noplugin", 8) == 0)
2045 		    p_lpl = FALSE;
2046 		else if (STRNICMP(argv[0] + argv_idx, "not-a-term", 10) == 0)
2047 		    parmp->not_a_term = TRUE;
2048 		else if (STRNICMP(argv[0] + argv_idx, "ttyfail", 7) == 0)
2049 		    parmp->tty_fail = TRUE;
2050 		else if (STRNICMP(argv[0] + argv_idx, "cmd", 3) == 0)
2051 		{
2052 		    want_argument = TRUE;
2053 		    argv_idx += 3;
2054 		}
2055 		else if (STRNICMP(argv[0] + argv_idx, "startuptime", 11) == 0)
2056 		{
2057 		    want_argument = TRUE;
2058 		    argv_idx += 11;
2059 		}
2060 #ifdef FEAT_CLIENTSERVER
2061 		else if (STRNICMP(argv[0] + argv_idx, "serverlist", 10) == 0)
2062 		    ; // already processed -- no arg
2063 		else if (STRNICMP(argv[0] + argv_idx, "servername", 10) == 0
2064 		       || STRNICMP(argv[0] + argv_idx, "serversend", 10) == 0)
2065 		{
2066 		    // already processed -- snatch the following arg
2067 		    if (argc > 1)
2068 		    {
2069 			--argc;
2070 			++argv;
2071 		    }
2072 		}
2073 #endif
2074 #if defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MSWIN)
2075 # ifdef FEAT_GUI_GTK
2076 		else if (STRNICMP(argv[0] + argv_idx, "socketid", 8) == 0)
2077 # else
2078 		else if (STRNICMP(argv[0] + argv_idx, "windowid", 8) == 0)
2079 # endif
2080 		{
2081 		    // already processed -- snatch the following arg
2082 		    if (argc > 1)
2083 		    {
2084 			--argc;
2085 			++argv;
2086 		    }
2087 		}
2088 #endif
2089 #ifdef FEAT_GUI_GTK
2090 		else if (STRNICMP(argv[0] + argv_idx, "echo-wid", 8) == 0)
2091 		{
2092 		    // already processed, skip
2093 		}
2094 #endif
2095 		else
2096 		{
2097 		    if (argv[0][argv_idx])
2098 			mainerr(ME_UNKNOWN_OPTION, (char_u *)argv[0]);
2099 		    had_minmin = TRUE;
2100 		}
2101 		if (!want_argument)
2102 		    argv_idx = -1;	// skip to next argument
2103 		break;
2104 
2105 	    case 'A':		// "-A" start in Arabic mode
2106 #ifdef FEAT_ARABIC
2107 		set_option_value((char_u *)"arabic", 1L, NULL, 0);
2108 #else
2109 		mch_errmsg(_(e_noarabic));
2110 		mch_exit(2);
2111 #endif
2112 		break;
2113 
2114 	    case 'b':		// "-b" binary mode
2115 		// Needs to be effective before expanding file names, because
2116 		// for Win32 this makes us edit a shortcut file itself,
2117 		// instead of the file it links to.
2118 		set_options_bin(curbuf->b_p_bin, 1, 0);
2119 		curbuf->b_p_bin = 1;	    // binary file I/O
2120 		break;
2121 
2122 	    case 'C':		// "-C"  Compatible
2123 		change_compatible(TRUE);
2124 		has_dash_c_arg = TRUE;
2125 		break;
2126 
2127 	    case 'e':		// "-e" Ex mode
2128 		exmode_active = EXMODE_NORMAL;
2129 		break;
2130 
2131 	    case 'E':		// "-E" Improved Ex mode
2132 		exmode_active = EXMODE_VIM;
2133 		break;
2134 
2135 	    case 'f':		// "-f"  GUI: run in foreground.  Amiga: open
2136 				// window directly, not with newcli
2137 #ifdef FEAT_GUI
2138 		gui.dofork = FALSE;	// don't fork() when starting GUI
2139 #endif
2140 		break;
2141 
2142 	    case 'g':		// "-g" start GUI
2143 		main_start_gui();
2144 		break;
2145 
2146 	    case 'F':		// "-F" was for Farsi mode
2147 		mch_errmsg(_(e_nofarsi));
2148 		mch_exit(2);
2149 		break;
2150 
2151 	    case '?':		// "-?" give help message (for MS-Windows)
2152 	    case 'h':		// "-h" give help message
2153 #ifdef FEAT_GUI_GNOME
2154 		// Tell usage() to exit for "gvim".
2155 		gui.starting = FALSE;
2156 #endif
2157 		usage();
2158 		break;
2159 
2160 	    case 'H':		// "-H" start in Hebrew mode: rl + hkmap set
2161 #ifdef FEAT_RIGHTLEFT
2162 		p_hkmap = TRUE;
2163 		set_option_value((char_u *)"rl", 1L, NULL, 0);
2164 #else
2165 		mch_errmsg(_(e_nohebrew));
2166 		mch_exit(2);
2167 #endif
2168 		break;
2169 
2170 	    case 'l':		// "-l" lisp mode, 'lisp' and 'showmatch' on
2171 #ifdef FEAT_LISP
2172 		set_option_value((char_u *)"lisp", 1L, NULL, 0);
2173 		p_sm = TRUE;
2174 #endif
2175 		break;
2176 
2177 	    case 'M':		// "-M"  no changes or writing of files
2178 		reset_modifiable();
2179 		// FALLTHROUGH
2180 
2181 	    case 'm':		// "-m"  no writing of files
2182 		p_write = FALSE;
2183 		break;
2184 
2185 	    case 'y':		// "-y"  easy mode
2186 #ifdef FEAT_GUI
2187 		gui.starting = TRUE;	// start GUI a bit later
2188 #endif
2189 		parmp->evim_mode = TRUE;
2190 		break;
2191 
2192 	    case 'N':		// "-N"  Nocompatible
2193 		change_compatible(FALSE);
2194 		break;
2195 
2196 	    case 'n':		// "-n" no swap file
2197 #ifdef FEAT_NETBEANS_INTG
2198 		// checking for "-nb", netbeans parameters
2199 		if (argv[0][argv_idx] == 'b')
2200 		{
2201 		    netbeansArg = argv[0];
2202 		    argv_idx = -1;	    // skip to next argument
2203 		}
2204 		else
2205 #endif
2206 		parmp->no_swap_file = TRUE;
2207 		break;
2208 
2209 	    case 'p':		// "-p[N]" open N tab pages
2210 #ifdef TARGET_API_MAC_OSX
2211 		// For some reason on MacOS X, an argument like:
2212 		// -psn_0_10223617 is passed in when invoke from Finder
2213 		// or with the 'open' command
2214 		if (argv[0][argv_idx] == 's')
2215 		{
2216 		    argv_idx = -1; // bypass full -psn
2217 		    main_start_gui();
2218 		    break;
2219 		}
2220 #endif
2221 		// default is 0: open window for each file
2222 		parmp->window_count = get_number_arg((char_u *)argv[0],
2223 								&argv_idx, 0);
2224 		parmp->window_layout = WIN_TABS;
2225 		break;
2226 
2227 	    case 'o':		// "-o[N]" open N horizontal split windows
2228 		// default is 0: open window for each file
2229 		parmp->window_count = get_number_arg((char_u *)argv[0],
2230 								&argv_idx, 0);
2231 		parmp->window_layout = WIN_HOR;
2232 		break;
2233 
2234 		case 'O':	// "-O[N]" open N vertical split windows
2235 		// default is 0: open window for each file
2236 		parmp->window_count = get_number_arg((char_u *)argv[0],
2237 								&argv_idx, 0);
2238 		parmp->window_layout = WIN_VER;
2239 		break;
2240 
2241 #ifdef FEAT_QUICKFIX
2242 	    case 'q':		// "-q" QuickFix mode
2243 		if (parmp->edit_type != EDIT_NONE)
2244 		    mainerr(ME_TOO_MANY_ARGS, (char_u *)argv[0]);
2245 		parmp->edit_type = EDIT_QF;
2246 		if (argv[0][argv_idx])		// "-q{errorfile}"
2247 		{
2248 		    parmp->use_ef = (char_u *)argv[0] + argv_idx;
2249 		    argv_idx = -1;
2250 		}
2251 		else if (argc > 1)		// "-q {errorfile}"
2252 		    want_argument = TRUE;
2253 		break;
2254 #endif
2255 
2256 	    case 'R':		// "-R" readonly mode
2257 		readonlymode = TRUE;
2258 		curbuf->b_p_ro = TRUE;
2259 		p_uc = 10000;			// don't update very often
2260 		break;
2261 
2262 	    case 'r':		// "-r" recovery mode
2263 	    case 'L':		// "-L" recovery mode
2264 		recoverymode = 1;
2265 		break;
2266 
2267 	    case 's':
2268 		if (exmode_active)	// "-s" silent (batch) mode
2269 		    silent_mode = TRUE;
2270 		else		// "-s {scriptin}" read from script file
2271 		    want_argument = TRUE;
2272 		break;
2273 
2274 	    case 't':		// "-t {tag}" or "-t{tag}" jump to tag
2275 		if (parmp->edit_type != EDIT_NONE)
2276 		    mainerr(ME_TOO_MANY_ARGS, (char_u *)argv[0]);
2277 		parmp->edit_type = EDIT_TAG;
2278 		if (argv[0][argv_idx])		// "-t{tag}"
2279 		{
2280 		    parmp->tagname = (char_u *)argv[0] + argv_idx;
2281 		    argv_idx = -1;
2282 		}
2283 		else				// "-t {tag}"
2284 		    want_argument = TRUE;
2285 		break;
2286 
2287 #ifdef FEAT_EVAL
2288 	    case 'D':		// "-D"		Debugging
2289 		parmp->use_debug_break_level = 9999;
2290 		break;
2291 #endif
2292 #ifdef FEAT_DIFF
2293 	    case 'd':		// "-d"		'diff'
2294 # ifdef AMIGA
2295 		// check for "-dev {device}"
2296 		if (argv[0][argv_idx] == 'e' && argv[0][argv_idx + 1] == 'v')
2297 		    want_argument = TRUE;
2298 		else
2299 # endif
2300 		    parmp->diff_mode = TRUE;
2301 		break;
2302 #endif
2303 	    case 'V':		// "-V{N}"	Verbose level
2304 		// default is 10: a little bit verbose
2305 		p_verbose = get_number_arg((char_u *)argv[0], &argv_idx, 10);
2306 		if (argv[0][argv_idx] != NUL)
2307 		{
2308 		    set_option_value((char_u *)"verbosefile", 0L,
2309 					     (char_u *)argv[0] + argv_idx, 0);
2310 		    argv_idx = (int)STRLEN(argv[0]);
2311 		}
2312 		break;
2313 
2314 	    case 'v':		// "-v"  Vi-mode (as if called "vi")
2315 		exmode_active = 0;
2316 #if defined(FEAT_GUI) && !defined(VIMDLL)
2317 		gui.starting = FALSE;	// don't start GUI
2318 #endif
2319 		break;
2320 
2321 	    case 'w':		// "-w{number}"	set window height
2322 				// "-w {scriptout}"	write to script
2323 		if (vim_isdigit(((char_u *)argv[0])[argv_idx]))
2324 		{
2325 		    n = get_number_arg((char_u *)argv[0], &argv_idx, 10);
2326 		    set_option_value((char_u *)"window", n, NULL, 0);
2327 		    break;
2328 		}
2329 		want_argument = TRUE;
2330 		break;
2331 
2332 #ifdef FEAT_CRYPT
2333 	    case 'x':		// "-x"  encrypted reading/writing of files
2334 		parmp->ask_for_key = TRUE;
2335 		break;
2336 #endif
2337 
2338 	    case 'X':		// "-X"  don't connect to X server
2339 #if (defined(UNIX) || defined(VMS)) && defined(FEAT_X11)
2340 		x_no_connect = TRUE;
2341 #endif
2342 		break;
2343 
2344 	    case 'Z':		// "-Z"  restricted mode
2345 		restricted = TRUE;
2346 		break;
2347 
2348 	    case 'c':		// "-c{command}" or "-c {command}" execute
2349 				// command
2350 		if (argv[0][argv_idx] != NUL)
2351 		{
2352 		    if (parmp->n_commands >= MAX_ARG_CMDS)
2353 			mainerr(ME_EXTRA_CMD, NULL);
2354 		    parmp->commands[parmp->n_commands++] = (char_u *)argv[0]
2355 								   + argv_idx;
2356 		    argv_idx = -1;
2357 		    break;
2358 		}
2359 		// FALLTHROUGH
2360 	    case 'S':		// "-S {file}" execute Vim script
2361 	    case 'i':		// "-i {viminfo}" use for viminfo
2362 #ifndef FEAT_DIFF
2363 	    case 'd':		// "-d {device}" device (for Amiga)
2364 #endif
2365 	    case 'T':		// "-T {terminal}" terminal name
2366 	    case 'u':		// "-u {vimrc}" vim inits file
2367 	    case 'U':		// "-U {gvimrc}" gvim inits file
2368 	    case 'W':		// "-W {scriptout}" overwrite
2369 #ifdef FEAT_GUI_MSWIN
2370 	    case 'P':		// "-P {parent title}" MDI parent
2371 #endif
2372 		want_argument = TRUE;
2373 		break;
2374 
2375 	    default:
2376 		mainerr(ME_UNKNOWN_OPTION, (char_u *)argv[0]);
2377 	    }
2378 
2379 	    /*
2380 	     * Handle option arguments with argument.
2381 	     */
2382 	    if (want_argument)
2383 	    {
2384 		/*
2385 		 * Check for garbage immediately after the option letter.
2386 		 */
2387 		if (argv[0][argv_idx] != NUL)
2388 		    mainerr(ME_GARBAGE, (char_u *)argv[0]);
2389 
2390 		--argc;
2391 		if (argc < 1 && c != 'S')  // -S has an optional argument
2392 		    mainerr_arg_missing((char_u *)argv[0]);
2393 		++argv;
2394 		argv_idx = -1;
2395 
2396 		switch (c)
2397 		{
2398 		case 'c':	// "-c {command}" execute command
2399 		case 'S':	// "-S {file}" execute Vim script
2400 		    if (parmp->n_commands >= MAX_ARG_CMDS)
2401 			mainerr(ME_EXTRA_CMD, NULL);
2402 		    if (c == 'S')
2403 		    {
2404 			char	*a;
2405 
2406 			if (argc < 1)
2407 			    // "-S" without argument: use default session file
2408 			    // name.
2409 			    a = SESSION_FILE;
2410 			else if (argv[0][0] == '-')
2411 			{
2412 			    // "-S" followed by another option: use default
2413 			    // session file name.
2414 			    a = SESSION_FILE;
2415 			    ++argc;
2416 			    --argv;
2417 			}
2418 			else
2419 			    a = argv[0];
2420 			p = alloc(STRLEN(a) + 4);
2421 			if (p == NULL)
2422 			    mch_exit(2);
2423 			sprintf((char *)p, "so %s", a);
2424 			parmp->cmds_tofree[parmp->n_commands] = TRUE;
2425 			parmp->commands[parmp->n_commands++] = p;
2426 		    }
2427 		    else
2428 			parmp->commands[parmp->n_commands++] =
2429 							    (char_u *)argv[0];
2430 		    break;
2431 
2432 		case '-':
2433 		    if (argv[-1][2] == 'c')
2434 		    {
2435 			// "--cmd {command}" execute command
2436 			if (parmp->n_pre_commands >= MAX_ARG_CMDS)
2437 			    mainerr(ME_EXTRA_CMD, NULL);
2438 			parmp->pre_commands[parmp->n_pre_commands++] =
2439 							    (char_u *)argv[0];
2440 		    }
2441 		    // "--startuptime <file>" already handled
2442 		    break;
2443 
2444 	    //	case 'd':   -d {device} is handled in mch_check_win() for the
2445 	    //		    Amiga
2446 
2447 #ifdef FEAT_QUICKFIX
2448 		case 'q':	// "-q {errorfile}" QuickFix mode
2449 		    parmp->use_ef = (char_u *)argv[0];
2450 		    break;
2451 #endif
2452 
2453 		case 'i':	// "-i {viminfo}" use for viminfo
2454 		    set_option_value((char_u *)"vif", 0L, (char_u *)argv[0], 0);
2455 		    break;
2456 
2457 		case 's':	// "-s {scriptin}" read from script file
2458 		    if (scriptin[0] != NULL)
2459 		    {
2460 scripterror:
2461 			mch_errmsg(_("Attempt to open script file again: \""));
2462 			mch_errmsg(argv[-1]);
2463 			mch_errmsg(" ");
2464 			mch_errmsg(argv[0]);
2465 			mch_errmsg("\"\n");
2466 			mch_exit(2);
2467 		    }
2468 		    if ((scriptin[0] = mch_fopen(argv[0], READBIN)) == NULL)
2469 		    {
2470 			mch_errmsg(_("Cannot open for reading: \""));
2471 			mch_errmsg(argv[0]);
2472 			mch_errmsg("\"\n");
2473 			mch_exit(2);
2474 		    }
2475 		    if (save_typebuf() == FAIL)
2476 			mch_exit(2);	// out of memory
2477 		    break;
2478 
2479 		case 't':	// "-t {tag}"
2480 		    parmp->tagname = (char_u *)argv[0];
2481 		    break;
2482 
2483 		case 'T':	// "-T {terminal}" terminal name
2484 		    /*
2485 		     * The -T term argument is always available and when
2486 		     * HAVE_TERMLIB is supported it overrides the environment
2487 		     * variable TERM.
2488 		     */
2489 #ifdef FEAT_GUI
2490 		    if (term_is_gui((char_u *)argv[0]))
2491 			gui.starting = TRUE;	// start GUI a bit later
2492 		    else
2493 #endif
2494 			parmp->term = (char_u *)argv[0];
2495 		    break;
2496 
2497 		case 'u':	// "-u {vimrc}" vim inits file
2498 		    parmp->use_vimrc = (char_u *)argv[0];
2499 		    break;
2500 
2501 		case 'U':	// "-U {gvimrc}" gvim inits file
2502 #ifdef FEAT_GUI
2503 		    use_gvimrc = (char_u *)argv[0];
2504 #endif
2505 		    break;
2506 
2507 		case 'w':	// "-w {nr}" 'window' value
2508 				// "-w {scriptout}" append to script file
2509 		    if (vim_isdigit(*((char_u *)argv[0])))
2510 		    {
2511 			argv_idx = 0;
2512 			n = get_number_arg((char_u *)argv[0], &argv_idx, 10);
2513 			set_option_value((char_u *)"window", n, NULL, 0);
2514 			argv_idx = -1;
2515 			break;
2516 		    }
2517 		    // FALLTHROUGH
2518 		case 'W':	// "-W {scriptout}" overwrite script file
2519 		    if (scriptout != NULL)
2520 			goto scripterror;
2521 		    if ((scriptout = mch_fopen(argv[0],
2522 				    c == 'w' ? APPENDBIN : WRITEBIN)) == NULL)
2523 		    {
2524 			mch_errmsg(_("Cannot open for script output: \""));
2525 			mch_errmsg(argv[0]);
2526 			mch_errmsg("\"\n");
2527 			mch_exit(2);
2528 		    }
2529 		    break;
2530 
2531 #ifdef FEAT_GUI_MSWIN
2532 		case 'P':		// "-P {parent title}" MDI parent
2533 		    gui_mch_set_parent(argv[0]);
2534 		    break;
2535 #endif
2536 		}
2537 	    }
2538 	}
2539 
2540 	/*
2541 	 * File name argument.
2542 	 */
2543 	else
2544 	{
2545 	    argv_idx = -1;	    // skip to next argument
2546 
2547 	    // Check for only one type of editing.
2548 	    if (parmp->edit_type != EDIT_NONE && parmp->edit_type != EDIT_FILE)
2549 		mainerr(ME_TOO_MANY_ARGS, (char_u *)argv[0]);
2550 	    parmp->edit_type = EDIT_FILE;
2551 
2552 #ifdef MSWIN
2553 	    // Remember if the argument was a full path before changing
2554 	    // slashes to backslashes.
2555 	    if (argv[0][0] != NUL && argv[0][1] == ':' && argv[0][2] == '\\')
2556 		parmp->full_path = TRUE;
2557 #endif
2558 
2559 	    // Add the file to the global argument list.
2560 	    if (ga_grow(&global_alist.al_ga, 1) == FAIL
2561 		    || (p = vim_strsave((char_u *)argv[0])) == NULL)
2562 		mch_exit(2);
2563 #ifdef FEAT_DIFF
2564 	    if (parmp->diff_mode && mch_isdir(p) && GARGCOUNT > 0
2565 				      && !mch_isdir(alist_name(&GARGLIST[0])))
2566 	    {
2567 		char_u	    *r;
2568 
2569 		r = concat_fnames(p, gettail(alist_name(&GARGLIST[0])), TRUE);
2570 		if (r != NULL)
2571 		{
2572 		    vim_free(p);
2573 		    p = r;
2574 		}
2575 	    }
2576 #endif
2577 #if defined(__CYGWIN32__) && !defined(MSWIN)
2578 	    /*
2579 	     * If vim is invoked by non-Cygwin tools, convert away any
2580 	     * DOS paths, so things like .swp files are created correctly.
2581 	     * Look for evidence of non-Cygwin paths before we bother.
2582 	     * This is only for when using the Unix files.
2583 	     */
2584 	    if (vim_strpbrk(p, "\\:") != NULL && !path_with_url(p))
2585 	    {
2586 		char posix_path[MAXPATHL];
2587 
2588 # if CYGWIN_VERSION_DLL_MAJOR >= 1007
2589 		cygwin_conv_path(CCP_WIN_A_TO_POSIX, p, posix_path, MAXPATHL);
2590 # else
2591 		cygwin_conv_to_posix_path(p, posix_path);
2592 # endif
2593 		vim_free(p);
2594 		p = vim_strsave((char_u *)posix_path);
2595 		if (p == NULL)
2596 		    mch_exit(2);
2597 	    }
2598 #endif
2599 
2600 #ifdef USE_FNAME_CASE
2601 	    // Make the case of the file name match the actual file.
2602 	    fname_case(p, 0);
2603 #endif
2604 
2605 	    alist_add(&global_alist, p,
2606 #ifdef EXPAND_FILENAMES
2607 		    parmp->literal ? 2 : 0	// add buffer nr after exp.
2608 #else
2609 		    2		// add buffer number now and use curbuf
2610 #endif
2611 		    );
2612 
2613 #ifdef MSWIN
2614 	    {
2615 		// Remember this argument has been added to the argument list.
2616 		// Needed when 'encoding' is changed.
2617 		used_file_arg(argv[0], parmp->literal, parmp->full_path,
2618 # ifdef FEAT_DIFF
2619 							    parmp->diff_mode
2620 # else
2621 							    FALSE
2622 # endif
2623 							    );
2624 	    }
2625 #endif
2626 	}
2627 
2628 	/*
2629 	 * If there are no more letters after the current "-", go to next
2630 	 * argument.  argv_idx is set to -1 when the current argument is to be
2631 	 * skipped.
2632 	 */
2633 	if (argv_idx <= 0 || argv[0][argv_idx] == NUL)
2634 	{
2635 	    --argc;
2636 	    ++argv;
2637 	    argv_idx = 1;
2638 	}
2639     }
2640 
2641 #ifdef FEAT_EVAL
2642     // If there is a "+123" or "-c" command, set v:swapcommand to the first
2643     // one.
2644     if (parmp->n_commands > 0)
2645     {
2646 	p = alloc(STRLEN(parmp->commands[0]) + 3);
2647 	if (p != NULL)
2648 	{
2649 	    sprintf((char *)p, ":%s\r", parmp->commands[0]);
2650 	    set_vim_var_string(VV_SWAPCOMMAND, p, -1);
2651 	    vim_free(p);
2652 	}
2653     }
2654 #endif
2655 }
2656 
2657 /*
2658  * Print a warning if stdout is not a terminal.
2659  * When starting in Ex mode and commands come from a file, set silent_mode.
2660  */
2661     static void
2662 check_tty(mparm_T *parmp)
2663 {
2664     int		input_isatty;		// is active input a terminal?
2665 
2666     input_isatty = mch_input_isatty();
2667     if (exmode_active)
2668     {
2669 	if (!input_isatty)
2670 	    silent_mode = TRUE;
2671     }
2672     else if (parmp->want_full_screen && (!stdout_isatty || !input_isatty)
2673 #ifdef FEAT_GUI
2674 	    // don't want the delay when started from the desktop
2675 	    && !gui.starting
2676 #endif
2677 	    && !parmp->not_a_term)
2678     {
2679 #ifdef NBDEBUG
2680 	/*
2681 	 * This shouldn't be necessary. But if I run netbeans with the log
2682 	 * output coming to the console and XOpenDisplay fails, I get vim
2683 	 * trying to start with input/output to my console tty.  This fills my
2684 	 * input buffer so fast I can't even kill the process in under 2
2685 	 * minutes (and it beeps continuously the whole time :-)
2686 	 */
2687 	if (netbeans_active() && (!stdout_isatty || !input_isatty))
2688 	{
2689 	    mch_errmsg(_("Vim: Error: Failure to start gvim from NetBeans\n"));
2690 	    exit(1);
2691 	}
2692 #endif
2693 #if defined(MSWIN) && (!defined(FEAT_GUI_MSWIN) || defined(VIMDLL))
2694 	if (
2695 # ifdef VIMDLL
2696 	    !gui.starting &&
2697 # endif
2698 	    is_cygpty_used())
2699 	{
2700 # if defined(HAVE_BIND_TEXTDOMAIN_CODESET) \
2701 	&& defined(FEAT_GETTEXT)
2702 	    char    *s, *tofree = NULL;
2703 
2704 	    // Set the encoding of the error message based on $LC_ALL or
2705 	    // other environment variables instead of 'encoding'.
2706 	    // Note that the message is shown on a Cygwin terminal (e.g.
2707 	    // mintty) which encoding is based on $LC_ALL or etc., not the
2708 	    // current codepage used by normal Win32 console programs.
2709 	    tofree = s = (char *)enc_locale_env(NULL);
2710 	    if (s == NULL)
2711 		s = "utf-8";	// Use "utf-8" by default.
2712 	    (void)bind_textdomain_codeset(VIMPACKAGE, s);
2713 	    vim_free(tofree);
2714 # endif
2715 	    mch_errmsg(_("Vim: Error: This version of Vim does not run in a Cygwin terminal\n"));
2716 	    exit(1);
2717 	}
2718 #endif
2719 	if (!stdout_isatty)
2720 	    mch_errmsg(_("Vim: Warning: Output is not to a terminal\n"));
2721 	if (!input_isatty)
2722 	    mch_errmsg(_("Vim: Warning: Input is not from a terminal\n"));
2723 	out_flush();
2724 	if (parmp->tty_fail && (!stdout_isatty || !input_isatty))
2725 	    exit(1);
2726 	if (scriptin[0] == NULL)
2727 	    ui_delay(2005L, TRUE);
2728 	TIME_MSG("Warning delay");
2729     }
2730 }
2731 
2732 /*
2733  * Read text from stdin.
2734  */
2735     static void
2736 read_stdin(void)
2737 {
2738     int	    i;
2739 
2740     // When getting the ATTENTION prompt here, use a dialog
2741     swap_exists_action = SEA_DIALOG;
2742 
2743     no_wait_return = TRUE;
2744     i = msg_didany;
2745     set_buflisted(TRUE);
2746     (void)open_buffer(TRUE, NULL, 0);	// create memfile and read file
2747     no_wait_return = FALSE;
2748     msg_didany = i;
2749     TIME_MSG("reading stdin");
2750 
2751     check_swap_exists_action();
2752 #if !(defined(AMIGA) || defined(MACOS_X))
2753     /*
2754      * Close stdin and dup it from stderr.  Required for GPM to work
2755      * properly, and for running external commands.
2756      * Is there any other system that cannot do this?
2757      */
2758     close(0);
2759     vim_ignored = dup(2);
2760 #endif
2761 }
2762 
2763 /*
2764  * Create the requested number of windows and edit buffers in them.
2765  * Also does recovery if "recoverymode" set.
2766  */
2767     static void
2768 create_windows(mparm_T *parmp UNUSED)
2769 {
2770     int		dorewind;
2771     int		done = 0;
2772 
2773     /*
2774      * Create the number of windows that was requested.
2775      */
2776     if (parmp->window_count == -1)	// was not set
2777 	parmp->window_count = 1;
2778     if (parmp->window_count == 0)
2779 	parmp->window_count = GARGCOUNT;
2780     if (parmp->window_count > 1)
2781     {
2782 	// Don't change the windows if there was a command in .vimrc that
2783 	// already split some windows
2784 	if (parmp->window_layout == 0)
2785 	    parmp->window_layout = WIN_HOR;
2786 	if (parmp->window_layout == WIN_TABS)
2787 	{
2788 	    parmp->window_count = make_tabpages(parmp->window_count);
2789 	    TIME_MSG("making tab pages");
2790 	}
2791 	else if (firstwin->w_next == NULL)
2792 	{
2793 	    parmp->window_count = make_windows(parmp->window_count,
2794 					     parmp->window_layout == WIN_VER);
2795 	    TIME_MSG("making windows");
2796 	}
2797 	else
2798 	    parmp->window_count = win_count();
2799     }
2800     else
2801 	parmp->window_count = 1;
2802 
2803     if (recoverymode)			// do recover
2804     {
2805 	msg_scroll = TRUE;		// scroll message up
2806 	ml_recover(TRUE);
2807 	if (curbuf->b_ml.ml_mfp == NULL) // failed
2808 	    getout(1);
2809 	do_modelines(0);		// do modelines
2810     }
2811     else
2812     {
2813 	/*
2814 	 * Open a buffer for windows that don't have one yet.
2815 	 * Commands in the .vimrc might have loaded a file or split the window.
2816 	 * Watch out for autocommands that delete a window.
2817 	 */
2818 	/*
2819 	 * Don't execute Win/Buf Enter/Leave autocommands here
2820 	 */
2821 	++autocmd_no_enter;
2822 	++autocmd_no_leave;
2823 	dorewind = TRUE;
2824 	while (done++ < 1000)
2825 	{
2826 	    if (dorewind)
2827 	    {
2828 		if (parmp->window_layout == WIN_TABS)
2829 		    goto_tabpage(1);
2830 		else
2831 		    curwin = firstwin;
2832 	    }
2833 	    else if (parmp->window_layout == WIN_TABS)
2834 	    {
2835 		if (curtab->tp_next == NULL)
2836 		    break;
2837 		goto_tabpage(0);
2838 	    }
2839 	    else
2840 	    {
2841 		if (curwin->w_next == NULL)
2842 		    break;
2843 		curwin = curwin->w_next;
2844 	    }
2845 	    dorewind = FALSE;
2846 	    curbuf = curwin->w_buffer;
2847 	    if (curbuf->b_ml.ml_mfp == NULL)
2848 	    {
2849 #ifdef FEAT_FOLDING
2850 		// Set 'foldlevel' to 'foldlevelstart' if it's not negative.
2851 		if (p_fdls >= 0)
2852 		    curwin->w_p_fdl = p_fdls;
2853 #endif
2854 		// When getting the ATTENTION prompt here, use a dialog
2855 		swap_exists_action = SEA_DIALOG;
2856 
2857 		set_buflisted(TRUE);
2858 
2859 		// create memfile, read file
2860 		(void)open_buffer(FALSE, NULL, 0);
2861 
2862 		if (swap_exists_action == SEA_QUIT)
2863 		{
2864 		    if (got_int || only_one_window())
2865 		    {
2866 			// abort selected or quit and only one window
2867 			did_emsg = FALSE;   // avoid hit-enter prompt
2868 			getout(1);
2869 		    }
2870 		    // We can't close the window, it would disturb what
2871 		    // happens next.  Clear the file name and set the arg
2872 		    // index to -1 to delete it later.
2873 		    setfname(curbuf, NULL, NULL, FALSE);
2874 		    curwin->w_arg_idx = -1;
2875 		    swap_exists_action = SEA_NONE;
2876 		}
2877 		else
2878 		    handle_swap_exists(NULL);
2879 		dorewind = TRUE;		// start again
2880 	    }
2881 	    ui_breakcheck();
2882 	    if (got_int)
2883 	    {
2884 		(void)vgetc();	// only break the file loading, not the rest
2885 		break;
2886 	    }
2887 	}
2888 	if (parmp->window_layout == WIN_TABS)
2889 	    goto_tabpage(1);
2890 	else
2891 	    curwin = firstwin;
2892 	curbuf = curwin->w_buffer;
2893 	--autocmd_no_enter;
2894 	--autocmd_no_leave;
2895     }
2896 }
2897 
2898 /*
2899  * If opened more than one window, start editing files in the other
2900  * windows.  make_windows() has already opened the windows.
2901  */
2902     static void
2903 edit_buffers(
2904     mparm_T	*parmp,
2905     char_u	*cwd)			// current working dir
2906 {
2907     int		arg_idx;		// index in argument list
2908     int		i;
2909     int		advance = TRUE;
2910     win_T	*win;
2911     char_u	*p_shm_save = NULL;
2912 
2913     /*
2914      * Don't execute Win/Buf Enter/Leave autocommands here
2915      */
2916     ++autocmd_no_enter;
2917     ++autocmd_no_leave;
2918 
2919     // When w_arg_idx is -1 remove the window (see create_windows()).
2920     if (curwin->w_arg_idx == -1)
2921     {
2922 	win_close(curwin, TRUE);
2923 	advance = FALSE;
2924     }
2925 
2926     arg_idx = 1;
2927     for (i = 1; i < parmp->window_count; ++i)
2928     {
2929 	if (cwd != NULL)
2930 	    mch_chdir((char *)cwd);
2931 	// When w_arg_idx is -1 remove the window (see create_windows()).
2932 	if (curwin->w_arg_idx == -1)
2933 	{
2934 	    ++arg_idx;
2935 	    win_close(curwin, TRUE);
2936 	    advance = FALSE;
2937 	    continue;
2938 	}
2939 
2940 	if (advance)
2941 	{
2942 	    if (parmp->window_layout == WIN_TABS)
2943 	    {
2944 		if (curtab->tp_next == NULL)	// just checking
2945 		    break;
2946 		goto_tabpage(0);
2947 		// Temporarily reset 'shm' option to not print fileinfo when
2948 		// loading the other buffers. This would overwrite the already
2949 		// existing fileinfo for the first tab.
2950 		if (i == 1)
2951 		{
2952 		    char buf[100];
2953 
2954 		    p_shm_save = vim_strsave(p_shm);
2955 		    vim_snprintf(buf, 100, "F%s", p_shm);
2956 		    set_option_value((char_u *)"shm", 0L, (char_u *)buf, 0);
2957 		}
2958 	    }
2959 	    else
2960 	    {
2961 		if (curwin->w_next == NULL)	// just checking
2962 		    break;
2963 		win_enter(curwin->w_next, FALSE);
2964 	    }
2965 	}
2966 	advance = TRUE;
2967 
2968 	// Only open the file if there is no file in this window yet (that can
2969 	// happen when .vimrc contains ":sall").
2970 	if (curbuf == firstwin->w_buffer || curbuf->b_ffname == NULL)
2971 	{
2972 	    curwin->w_arg_idx = arg_idx;
2973 	    // Edit file from arg list, if there is one.  When "Quit" selected
2974 	    // at the ATTENTION prompt close the window.
2975 	    swap_exists_did_quit = FALSE;
2976 	    (void)do_ecmd(0, arg_idx < GARGCOUNT
2977 			  ? alist_name(&GARGLIST[arg_idx]) : NULL,
2978 			  NULL, NULL, ECMD_LASTL, ECMD_HIDE, curwin);
2979 	    if (swap_exists_did_quit)
2980 	    {
2981 		// abort or quit selected
2982 		if (got_int || only_one_window())
2983 		{
2984 		    // abort selected and only one window
2985 		    did_emsg = FALSE;   // avoid hit-enter prompt
2986 		    getout(1);
2987 		}
2988 		win_close(curwin, TRUE);
2989 		advance = FALSE;
2990 	    }
2991 	    if (arg_idx == GARGCOUNT - 1)
2992 		arg_had_last = TRUE;
2993 	    ++arg_idx;
2994 	}
2995 	ui_breakcheck();
2996 	if (got_int)
2997 	{
2998 	    (void)vgetc();	// only break the file loading, not the rest
2999 	    break;
3000 	}
3001     }
3002 
3003     if (p_shm_save != NULL)
3004     {
3005 	set_option_value((char_u *)"shm", 0L, p_shm_save, 0);
3006 	vim_free(p_shm_save);
3007     }
3008 
3009     if (parmp->window_layout == WIN_TABS)
3010 	goto_tabpage(1);
3011     --autocmd_no_enter;
3012 
3013     // make the first window the current window
3014     win = firstwin;
3015 #if defined(FEAT_QUICKFIX)
3016     // Avoid making a preview window the current window.
3017     while (win->w_p_pvw)
3018     {
3019 	win = win->w_next;
3020 	if (win == NULL)
3021 	{
3022 	    win = firstwin;
3023 	    break;
3024 	}
3025     }
3026 #endif
3027     win_enter(win, FALSE);
3028 
3029     --autocmd_no_leave;
3030     TIME_MSG("editing files in windows");
3031     if (parmp->window_count > 1 && parmp->window_layout != WIN_TABS)
3032 	win_equal(curwin, FALSE, 'b');	// adjust heights
3033 }
3034 
3035 /*
3036  * Execute the commands from --cmd arguments "cmds[cnt]".
3037  */
3038     static void
3039 exe_pre_commands(mparm_T *parmp)
3040 {
3041     char_u	**cmds = parmp->pre_commands;
3042     int		cnt = parmp->n_pre_commands;
3043     int		i;
3044     ESTACK_CHECK_DECLARATION
3045 
3046     if (cnt > 0)
3047     {
3048 	curwin->w_cursor.lnum = 0; // just in case..
3049 	estack_push(ETYPE_ARGS, (char_u *)_("pre-vimrc command line"), 0);
3050 	ESTACK_CHECK_SETUP
3051 # ifdef FEAT_EVAL
3052 	current_sctx.sc_sid = SID_CMDARG;
3053 # endif
3054 	for (i = 0; i < cnt; ++i)
3055 	    do_cmdline_cmd(cmds[i]);
3056 	ESTACK_CHECK_NOW
3057 	estack_pop();
3058 # ifdef FEAT_EVAL
3059 	current_sctx.sc_sid = 0;
3060 # endif
3061 	TIME_MSG("--cmd commands");
3062     }
3063 }
3064 
3065 /*
3066  * Execute "+", "-c" and "-S" arguments.
3067  */
3068     static void
3069 exe_commands(mparm_T *parmp)
3070 {
3071     int		i;
3072     ESTACK_CHECK_DECLARATION
3073 
3074     /*
3075      * We start commands on line 0, make "vim +/pat file" match a
3076      * pattern on line 1.  But don't move the cursor when an autocommand
3077      * with g`" was used.
3078      */
3079     msg_scroll = TRUE;
3080     if (parmp->tagname == NULL && curwin->w_cursor.lnum <= 1)
3081 	curwin->w_cursor.lnum = 0;
3082     estack_push(ETYPE_ARGS, (char_u *)"command line", 0);
3083     ESTACK_CHECK_SETUP
3084 #ifdef FEAT_EVAL
3085     current_sctx.sc_sid = SID_CARG;
3086     current_sctx.sc_seq = 0;
3087 #endif
3088     for (i = 0; i < parmp->n_commands; ++i)
3089     {
3090 	do_cmdline_cmd(parmp->commands[i]);
3091 	if (parmp->cmds_tofree[i])
3092 	    vim_free(parmp->commands[i]);
3093     }
3094     ESTACK_CHECK_NOW
3095     estack_pop();
3096 #ifdef FEAT_EVAL
3097     current_sctx.sc_sid = 0;
3098 #endif
3099     if (curwin->w_cursor.lnum == 0)
3100 	curwin->w_cursor.lnum = 1;
3101 
3102     if (!exmode_active)
3103 	msg_scroll = FALSE;
3104 
3105 #ifdef FEAT_QUICKFIX
3106     // When started with "-q errorfile" jump to first error again.
3107     if (parmp->edit_type == EDIT_QF)
3108 	qf_jump(NULL, 0, 0, FALSE);
3109 #endif
3110     TIME_MSG("executing command arguments");
3111 }
3112 
3113 /*
3114  * Source startup scripts.
3115  */
3116     static void
3117 source_startup_scripts(mparm_T *parmp)
3118 {
3119     int		i;
3120 
3121     /*
3122      * For "evim" source evim.vim first of all, so that the user can overrule
3123      * any things he doesn't like.
3124      */
3125     if (parmp->evim_mode)
3126     {
3127 	(void)do_source((char_u *)EVIM_FILE, FALSE, DOSO_NONE, NULL);
3128 	TIME_MSG("source evim file");
3129     }
3130 
3131     /*
3132      * If -u argument given, use only the initializations from that file and
3133      * nothing else.
3134      */
3135     if (parmp->use_vimrc != NULL)
3136     {
3137 	if (STRCMP(parmp->use_vimrc, "DEFAULTS") == 0)
3138 	    do_source((char_u *)VIM_DEFAULTS_FILE, FALSE, DOSO_NONE, NULL);
3139 	else if (STRCMP(parmp->use_vimrc, "NONE") == 0
3140 				     || STRCMP(parmp->use_vimrc, "NORC") == 0)
3141 	{
3142 #ifdef FEAT_GUI
3143 	    if (use_gvimrc == NULL)	    // don't load gvimrc either
3144 		use_gvimrc = parmp->use_vimrc;
3145 #endif
3146 	}
3147 	else
3148 	{
3149 	    if (do_source(parmp->use_vimrc, FALSE, DOSO_NONE, NULL) != OK)
3150 		semsg(_("E282: Cannot read from \"%s\""), parmp->use_vimrc);
3151 	}
3152     }
3153     else if (!silent_mode)
3154     {
3155 #ifdef AMIGA
3156 	struct Process	*proc = (struct Process *)FindTask(0L);
3157 	APTR		save_winptr = proc->pr_WindowPtr;
3158 
3159 	// Avoid a requester here for a volume that doesn't exist.
3160 	proc->pr_WindowPtr = (APTR)-1L;
3161 #endif
3162 
3163 	/*
3164 	 * Get system wide defaults, if the file name is defined.
3165 	 */
3166 #ifdef SYS_VIMRC_FILE
3167 	(void)do_source((char_u *)SYS_VIMRC_FILE, FALSE, DOSO_NONE, NULL);
3168 #endif
3169 #ifdef MACOS_X
3170 	(void)do_source((char_u *)"$VIMRUNTIME/macmap.vim", FALSE,
3171 							      DOSO_NONE, NULL);
3172 #endif
3173 
3174 	/*
3175 	 * Try to read initialization commands from the following places:
3176 	 * - environment variable VIMINIT
3177 	 * - user vimrc file (s:.vimrc for Amiga, ~/.vimrc otherwise)
3178 	 * - second user vimrc file ($VIM/.vimrc for Dos)
3179 	 * - environment variable EXINIT
3180 	 * - user exrc file (s:.exrc for Amiga, ~/.exrc otherwise)
3181 	 * - second user exrc file ($VIM/.exrc for Dos)
3182 	 * The first that exists is used, the rest is ignored.
3183 	 */
3184 	if (process_env((char_u *)"VIMINIT", TRUE) != OK)
3185 	{
3186 	    if (do_source((char_u *)USR_VIMRC_FILE, TRUE,
3187 						      DOSO_VIMRC, NULL) == FAIL
3188 #ifdef USR_VIMRC_FILE2
3189 		&& do_source((char_u *)USR_VIMRC_FILE2, TRUE,
3190 						      DOSO_VIMRC, NULL) == FAIL
3191 #endif
3192 #ifdef USR_VIMRC_FILE3
3193 		&& do_source((char_u *)USR_VIMRC_FILE3, TRUE,
3194 						      DOSO_VIMRC, NULL) == FAIL
3195 #endif
3196 #ifdef USR_VIMRC_FILE4
3197 		&& do_source((char_u *)USR_VIMRC_FILE4, TRUE,
3198 						      DOSO_VIMRC, NULL) == FAIL
3199 #endif
3200 		&& process_env((char_u *)"EXINIT", FALSE) == FAIL
3201 		&& do_source((char_u *)USR_EXRC_FILE, FALSE,
3202 						       DOSO_NONE, NULL) == FAIL
3203 #ifdef USR_EXRC_FILE2
3204 		&& do_source((char_u *)USR_EXRC_FILE2, FALSE,
3205 						       DOSO_NONE, NULL) == FAIL
3206 #endif
3207 		&& !has_dash_c_arg)
3208 	    {
3209 		// When no .vimrc file was found: source defaults.vim.
3210 		do_source((char_u *)VIM_DEFAULTS_FILE, FALSE, DOSO_NONE, NULL);
3211 	    }
3212 	}
3213 
3214 	/*
3215 	 * Read initialization commands from ".vimrc" or ".exrc" in current
3216 	 * directory.  This is only done if the 'exrc' option is set.
3217 	 * Because of security reasons we disallow shell and write commands
3218 	 * now, except for Unix if the file is owned by the user or 'secure'
3219 	 * option has been reset in environment of global ".exrc" or ".vimrc".
3220 	 * Only do this if VIMRC_FILE is not the same as USR_VIMRC_FILE or
3221 	 * SYS_VIMRC_FILE.
3222 	 */
3223 	if (p_exrc)
3224 	{
3225 #if defined(UNIX) || defined(VMS)
3226 	    // If ".vimrc" file is not owned by user, set 'secure' mode.
3227 	    if (!file_owned(VIMRC_FILE))
3228 #endif
3229 		secure = p_secure;
3230 
3231 	    i = FAIL;
3232 	    if (fullpathcmp((char_u *)USR_VIMRC_FILE,
3233 				(char_u *)VIMRC_FILE, FALSE, TRUE) != FPC_SAME
3234 #ifdef USR_VIMRC_FILE2
3235 		    && fullpathcmp((char_u *)USR_VIMRC_FILE2,
3236 				(char_u *)VIMRC_FILE, FALSE, TRUE) != FPC_SAME
3237 #endif
3238 #ifdef USR_VIMRC_FILE3
3239 		    && fullpathcmp((char_u *)USR_VIMRC_FILE3,
3240 				(char_u *)VIMRC_FILE, FALSE, TRUE) != FPC_SAME
3241 #endif
3242 #ifdef SYS_VIMRC_FILE
3243 		    && fullpathcmp((char_u *)SYS_VIMRC_FILE,
3244 				(char_u *)VIMRC_FILE, FALSE, TRUE) != FPC_SAME
3245 #endif
3246 				)
3247 		i = do_source((char_u *)VIMRC_FILE, TRUE, DOSO_VIMRC, NULL);
3248 
3249 	    if (i == FAIL)
3250 	    {
3251 #if defined(UNIX) || defined(VMS)
3252 		// if ".exrc" is not owned by user set 'secure' mode
3253 		if (!file_owned(EXRC_FILE))
3254 		    secure = p_secure;
3255 		else
3256 		    secure = 0;
3257 #endif
3258 		if (	   fullpathcmp((char_u *)USR_EXRC_FILE,
3259 				(char_u *)EXRC_FILE, FALSE, TRUE) != FPC_SAME
3260 #ifdef USR_EXRC_FILE2
3261 			&& fullpathcmp((char_u *)USR_EXRC_FILE2,
3262 				(char_u *)EXRC_FILE, FALSE, TRUE) != FPC_SAME
3263 #endif
3264 				)
3265 		    (void)do_source((char_u *)EXRC_FILE, FALSE,
3266 							      DOSO_NONE, NULL);
3267 	    }
3268 	}
3269 	if (secure == 2)
3270 	    need_wait_return = TRUE;
3271 	secure = 0;
3272 #ifdef AMIGA
3273 	proc->pr_WindowPtr = save_winptr;
3274 #endif
3275     }
3276     TIME_MSG("sourcing vimrc file(s)");
3277 }
3278 
3279 /*
3280  * Setup to start using the GUI.  Exit with an error when not available.
3281  */
3282     static void
3283 main_start_gui(void)
3284 {
3285 #ifdef FEAT_GUI
3286     gui.starting = TRUE;	// start GUI a bit later
3287 #else
3288     mch_errmsg(_(e_nogvim));
3289     mch_errmsg("\n");
3290     mch_exit(2);
3291 #endif
3292 }
3293 
3294 #endif  // NO_VIM_MAIN
3295 
3296 /*
3297  * Get an environment variable and execute it as Ex commands.
3298  * Returns FAIL if the environment variable was not executed, OK otherwise.
3299  */
3300     int
3301 process_env(
3302     char_u	*env,
3303     int		is_viminit) // when TRUE, called for VIMINIT
3304 {
3305     char_u	*initstr;
3306 #ifdef FEAT_EVAL
3307     sctx_T	save_current_sctx;
3308 #endif
3309     ESTACK_CHECK_DECLARATION
3310 
3311     if ((initstr = mch_getenv(env)) != NULL && *initstr != NUL)
3312     {
3313 	if (is_viminit)
3314 	    vimrc_found(NULL, NULL);
3315 	estack_push(ETYPE_ENV, env, 0);
3316 	ESTACK_CHECK_SETUP
3317 #ifdef FEAT_EVAL
3318 	save_current_sctx = current_sctx;
3319 	current_sctx.sc_sid = SID_ENV;
3320 	current_sctx.sc_seq = 0;
3321 	current_sctx.sc_lnum = 0;
3322 	current_sctx.sc_version = 1;
3323 #endif
3324 	do_cmdline_cmd(initstr);
3325 
3326 	ESTACK_CHECK_NOW
3327 	estack_pop();
3328 #ifdef FEAT_EVAL
3329 	current_sctx = save_current_sctx;
3330 #endif
3331 	return OK;
3332     }
3333     return FAIL;
3334 }
3335 
3336 #if (defined(UNIX) || defined(VMS)) && !defined(NO_VIM_MAIN)
3337 /*
3338  * Return TRUE if we are certain the user owns the file "fname".
3339  * Used for ".vimrc" and ".exrc".
3340  * Use both stat() and lstat() for extra security.
3341  */
3342     static int
3343 file_owned(char *fname)
3344 {
3345     stat_T	s;
3346 # ifdef UNIX
3347     uid_t	uid = getuid();
3348 # else	 // VMS
3349     uid_t	uid = ((getgid() << 16) | getuid());
3350 # endif
3351 
3352     return !(mch_stat(fname, &s) != 0 || s.st_uid != uid
3353 # ifdef HAVE_LSTAT
3354 	    || mch_lstat(fname, &s) != 0 || s.st_uid != uid
3355 # endif
3356 	    );
3357 }
3358 #endif
3359 
3360 /*
3361  * Give an error message main_errors["n"] and exit.
3362  */
3363     static void
3364 mainerr(
3365     int		n,	// one of the ME_ defines
3366     char_u	*str)	// extra argument or NULL
3367 {
3368 #if defined(UNIX) || defined(VMS)
3369     reset_signals();		// kill us with CTRL-C here, if you like
3370 #endif
3371 
3372     // If this is a Windows GUI executable, show an error dialog box.
3373 #ifdef VIMDLL
3374     gui.in_use = mch_is_gui_executable();
3375 #endif
3376 #ifdef FEAT_GUI_MSWIN
3377     gui.starting = FALSE;   // Needed to show as error.
3378 #endif
3379 
3380     init_longVersion();
3381     mch_errmsg(longVersion);
3382     mch_errmsg("\n");
3383     mch_errmsg(_(main_errors[n]));
3384     if (str != NULL)
3385     {
3386 	mch_errmsg(": \"");
3387 	mch_errmsg((char *)str);
3388 	mch_errmsg("\"");
3389     }
3390     mch_errmsg(_("\nMore info with: \"vim -h\"\n"));
3391 
3392     mch_exit(1);
3393 }
3394 
3395     void
3396 mainerr_arg_missing(char_u *str)
3397 {
3398     mainerr(ME_ARG_MISSING, str);
3399 }
3400 
3401 #ifndef NO_VIM_MAIN
3402 /*
3403  * print a message with three spaces prepended and '\n' appended.
3404  */
3405     static void
3406 main_msg(char *s)
3407 {
3408     mch_msg("   ");
3409     mch_msg(s);
3410     mch_msg("\n");
3411 }
3412 
3413 /*
3414  * Print messages for "vim -h" or "vim --help" and exit.
3415  */
3416     static void
3417 usage(void)
3418 {
3419     int		i;
3420     static char	*(use[]) =
3421     {
3422 	N_("[file ..]       edit specified file(s)"),
3423 	N_("-               read text from stdin"),
3424 	N_("-t tag          edit file where tag is defined"),
3425 #ifdef FEAT_QUICKFIX
3426 	N_("-q [errorfile]  edit file with first error")
3427 #endif
3428     };
3429 
3430 #if defined(UNIX) || defined(VMS)
3431     reset_signals();		// kill us with CTRL-C here, if you like
3432 #endif
3433 
3434     init_longVersion();
3435     mch_msg(longVersion);
3436     mch_msg(_("\n\nUsage:"));
3437     for (i = 0; ; ++i)
3438     {
3439 	mch_msg(_(" vim [arguments] "));
3440 	mch_msg(_(use[i]));
3441 	if (i == (sizeof(use) / sizeof(char_u *)) - 1)
3442 	    break;
3443 	mch_msg(_("\n   or:"));
3444     }
3445 #ifdef VMS
3446     mch_msg(_("\nWhere case is ignored prepend / to make flag upper case"));
3447 #endif
3448 
3449     mch_msg(_("\n\nArguments:\n"));
3450     main_msg(_("--\t\t\tOnly file names after this"));
3451 #ifdef EXPAND_FILENAMES
3452     main_msg(_("--literal\t\tDon't expand wildcards"));
3453 #endif
3454 #ifdef FEAT_OLE
3455     main_msg(_("-register\t\tRegister this gvim for OLE"));
3456     main_msg(_("-unregister\t\tUnregister gvim for OLE"));
3457 #endif
3458 #ifdef FEAT_GUI
3459     main_msg(_("-g\t\t\tRun using GUI (like \"gvim\")"));
3460     main_msg(_("-f  or  --nofork\tForeground: Don't fork when starting GUI"));
3461 #endif
3462     main_msg(_("-v\t\t\tVi mode (like \"vi\")"));
3463     main_msg(_("-e\t\t\tEx mode (like \"ex\")"));
3464     main_msg(_("-E\t\t\tImproved Ex mode"));
3465     main_msg(_("-s\t\t\tSilent (batch) mode (only for \"ex\")"));
3466 #ifdef FEAT_DIFF
3467     main_msg(_("-d\t\t\tDiff mode (like \"vimdiff\")"));
3468 #endif
3469     main_msg(_("-y\t\t\tEasy mode (like \"evim\", modeless)"));
3470     main_msg(_("-R\t\t\tReadonly mode (like \"view\")"));
3471     main_msg(_("-Z\t\t\tRestricted mode (like \"rvim\")"));
3472     main_msg(_("-m\t\t\tModifications (writing files) not allowed"));
3473     main_msg(_("-M\t\t\tModifications in text not allowed"));
3474     main_msg(_("-b\t\t\tBinary mode"));
3475 #ifdef FEAT_LISP
3476     main_msg(_("-l\t\t\tLisp mode"));
3477 #endif
3478     main_msg(_("-C\t\t\tCompatible with Vi: 'compatible'"));
3479     main_msg(_("-N\t\t\tNot fully Vi compatible: 'nocompatible'"));
3480     main_msg(_("-V[N][fname]\t\tBe verbose [level N] [log messages to fname]"));
3481 #ifdef FEAT_EVAL
3482     main_msg(_("-D\t\t\tDebugging mode"));
3483 #endif
3484     main_msg(_("-n\t\t\tNo swap file, use memory only"));
3485     main_msg(_("-r\t\t\tList swap files and exit"));
3486     main_msg(_("-r (with file name)\tRecover crashed session"));
3487     main_msg(_("-L\t\t\tSame as -r"));
3488 #ifdef AMIGA
3489     main_msg(_("-f\t\t\tDon't use newcli to open window"));
3490     main_msg(_("-dev <device>\t\tUse <device> for I/O"));
3491 #endif
3492 #ifdef FEAT_ARABIC
3493     main_msg(_("-A\t\t\tStart in Arabic mode"));
3494 #endif
3495 #ifdef FEAT_RIGHTLEFT
3496     main_msg(_("-H\t\t\tStart in Hebrew mode"));
3497 #endif
3498     main_msg(_("-T <terminal>\tSet terminal type to <terminal>"));
3499     main_msg(_("--not-a-term\t\tSkip warning for input/output not being a terminal"));
3500     main_msg(_("--ttyfail\t\tExit if input or output is not a terminal"));
3501     main_msg(_("-u <vimrc>\t\tUse <vimrc> instead of any .vimrc"));
3502 #ifdef FEAT_GUI
3503     main_msg(_("-U <gvimrc>\t\tUse <gvimrc> instead of any .gvimrc"));
3504 #endif
3505     main_msg(_("--noplugin\t\tDon't load plugin scripts"));
3506     main_msg(_("-p[N]\t\tOpen N tab pages (default: one for each file)"));
3507     main_msg(_("-o[N]\t\tOpen N windows (default: one for each file)"));
3508     main_msg(_("-O[N]\t\tLike -o but split vertically"));
3509     main_msg(_("+\t\t\tStart at end of file"));
3510     main_msg(_("+<lnum>\t\tStart at line <lnum>"));
3511     main_msg(_("--cmd <command>\tExecute <command> before loading any vimrc file"));
3512     main_msg(_("-c <command>\t\tExecute <command> after loading the first file"));
3513     main_msg(_("-S <session>\t\tSource file <session> after loading the first file"));
3514     main_msg(_("-s <scriptin>\tRead Normal mode commands from file <scriptin>"));
3515     main_msg(_("-w <scriptout>\tAppend all typed commands to file <scriptout>"));
3516     main_msg(_("-W <scriptout>\tWrite all typed commands to file <scriptout>"));
3517 #ifdef FEAT_CRYPT
3518     main_msg(_("-x\t\t\tEdit encrypted files"));
3519 #endif
3520 #if (defined(UNIX) || defined(VMS)) && defined(FEAT_X11)
3521 # if defined(FEAT_GUI_X11) && !defined(FEAT_GUI_GTK)
3522     main_msg(_("-display <display>\tConnect Vim to this particular X-server"));
3523 # endif
3524     main_msg(_("-X\t\t\tDo not connect to X server"));
3525 #endif
3526 #ifdef FEAT_CLIENTSERVER
3527     main_msg(_("--remote <files>\tEdit <files> in a Vim server if possible"));
3528     main_msg(_("--remote-silent <files>  Same, don't complain if there is no server"));
3529     main_msg(_("--remote-wait <files>  As --remote but wait for files to have been edited"));
3530     main_msg(_("--remote-wait-silent <files>  Same, don't complain if there is no server"));
3531     main_msg(_("--remote-tab[-wait][-silent] <files>  As --remote but use tab page per file"));
3532     main_msg(_("--remote-send <keys>\tSend <keys> to a Vim server and exit"));
3533     main_msg(_("--remote-expr <expr>\tEvaluate <expr> in a Vim server and print result"));
3534     main_msg(_("--serverlist\t\tList available Vim server names and exit"));
3535     main_msg(_("--servername <name>\tSend to/become the Vim server <name>"));
3536 #endif
3537 #ifdef STARTUPTIME
3538     main_msg(_("--startuptime <file>\tWrite startup timing messages to <file>"));
3539 #endif
3540 #ifdef FEAT_VIMINFO
3541     main_msg(_("-i <viminfo>\t\tUse <viminfo> instead of .viminfo"));
3542 #endif
3543     main_msg(_("--clean\t\t'nocompatible', Vim defaults, no plugins, no viminfo"));
3544     main_msg(_("-h  or  --help\tPrint Help (this message) and exit"));
3545     main_msg(_("--version\t\tPrint version information and exit"));
3546 
3547 #ifdef FEAT_GUI_X11
3548 # ifdef FEAT_GUI_MOTIF
3549     mch_msg(_("\nArguments recognised by gvim (Motif version):\n"));
3550 # else
3551 #  ifdef FEAT_GUI_ATHENA
3552 #   ifdef FEAT_GUI_NEXTAW
3553     mch_msg(_("\nArguments recognised by gvim (neXtaw version):\n"));
3554 #   else
3555     mch_msg(_("\nArguments recognised by gvim (Athena version):\n"));
3556 #   endif
3557 #  endif
3558 # endif
3559     main_msg(_("-display <display>\tRun Vim on <display>"));
3560     main_msg(_("-iconic\t\tStart Vim iconified"));
3561     main_msg(_("-background <color>\tUse <color> for the background (also: -bg)"));
3562     main_msg(_("-foreground <color>\tUse <color> for normal text (also: -fg)"));
3563     main_msg(_("-font <font>\t\tUse <font> for normal text (also: -fn)"));
3564     main_msg(_("-boldfont <font>\tUse <font> for bold text"));
3565     main_msg(_("-italicfont <font>\tUse <font> for italic text"));
3566     main_msg(_("-geometry <geom>\tUse <geom> for initial geometry (also: -geom)"));
3567     main_msg(_("-borderwidth <width>\tUse a border width of <width> (also: -bw)"));
3568     main_msg(_("-scrollbarwidth <width>  Use a scrollbar width of <width> (also: -sw)"));
3569 # ifdef FEAT_GUI_ATHENA
3570     main_msg(_("-menuheight <height>\tUse a menu bar height of <height> (also: -mh)"));
3571 # endif
3572     main_msg(_("-reverse\t\tUse reverse video (also: -rv)"));
3573     main_msg(_("+reverse\t\tDon't use reverse video (also: +rv)"));
3574     main_msg(_("-xrm <resource>\tSet the specified resource"));
3575 #endif // FEAT_GUI_X11
3576 #ifdef FEAT_GUI_GTK
3577     mch_msg(_("\nArguments recognised by gvim (GTK+ version):\n"));
3578     main_msg(_("-font <font>\t\tUse <font> for normal text (also: -fn)"));
3579     main_msg(_("-geometry <geom>\tUse <geom> for initial geometry (also: -geom)"));
3580     main_msg(_("-reverse\t\tUse reverse video (also: -rv)"));
3581     main_msg(_("-display <display>\tRun Vim on <display> (also: --display)"));
3582     main_msg(_("--role <role>\tSet a unique role to identify the main window"));
3583     main_msg(_("--socketid <xid>\tOpen Vim inside another GTK widget"));
3584     main_msg(_("--echo-wid\t\tMake gvim echo the Window ID on stdout"));
3585 #endif
3586 #ifdef FEAT_GUI_MSWIN
3587 # ifdef VIMDLL
3588     if (gui.starting)
3589 # endif
3590     {
3591 	main_msg(_("-P <parent title>\tOpen Vim inside parent application"));
3592 	main_msg(_("--windowid <HWND>\tOpen Vim inside another win32 widget"));
3593     }
3594 #endif
3595 
3596 #ifdef FEAT_GUI_GNOME
3597     // Gnome gives extra messages for --help if we continue, but not for -h.
3598     if (gui.starting)
3599     {
3600 	mch_msg("\n");
3601 	gui.dofork = FALSE;
3602     }
3603     else
3604 #endif
3605 	mch_exit(0);
3606 }
3607 
3608 /*
3609  * Check the result of the ATTENTION dialog:
3610  * When "Quit" selected, exit Vim.
3611  * When "Recover" selected, recover the file.
3612  */
3613     static void
3614 check_swap_exists_action(void)
3615 {
3616     if (swap_exists_action == SEA_QUIT)
3617 	getout(1);
3618     handle_swap_exists(NULL);
3619 }
3620 
3621 #endif // NO_VIM_MAIN
3622 
3623 #if !defined(NO_VIM_MAIN) && defined(FEAT_EVAL)
3624     static void
3625 set_progpath(char_u *argv0)
3626 {
3627     char_u *val = argv0;
3628 
3629 # ifdef MSWIN
3630     // A relative path containing a "/" will become invalid when using ":cd",
3631     // turn it into a full path.
3632     // On MS-Windows "vim" should be expanded to "vim.exe", thus always do
3633     // this.
3634     char_u *path = NULL;
3635 
3636     if (mch_can_exe(argv0, &path, FALSE) && path != NULL)
3637 	val = path;
3638 # else
3639     char_u	buf[MAXPATHL + 1];
3640 #  ifdef PROC_EXE_LINK
3641     char	linkbuf[MAXPATHL + 1];
3642     ssize_t	len;
3643 
3644     len = readlink(PROC_EXE_LINK, linkbuf, MAXPATHL);
3645     if (len > 0)
3646     {
3647 	linkbuf[len] = NUL;
3648 	val = (char_u *)linkbuf;
3649     }
3650 #  endif
3651 
3652     if (!mch_isFullName(val))
3653     {
3654 	if (gettail(val) != val
3655 			   && vim_FullName(val, buf, MAXPATHL, TRUE) != FAIL)
3656 	    val = buf;
3657     }
3658 # endif
3659 
3660     set_vim_var_string(VV_PROGPATH, val, -1);
3661 
3662 # ifdef MSWIN
3663     vim_free(path);
3664 # endif
3665 }
3666 
3667 #endif // NO_VIM_MAIN
3668