xref: /vim-8.2.3635/src/scriptfile.c (revision 08fc4849)
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 /*
11  * scriptfile.c: functions for dealing with the runtime directories/files
12  */
13 
14 #include "vim.h"
15 
16 #if defined(FEAT_EVAL) || defined(PROTO)
17 // The names of packages that once were loaded are remembered.
18 static garray_T		ga_loaded = {0, 0, sizeof(char_u *), 4, NULL};
19 #endif
20 
21 /*
22  * Initialize the execution stack.
23  */
24     void
25 estack_init(void)
26 {
27     estack_T *entry;
28 
29     if (ga_grow(&exestack, 10) == FAIL)
30 	mch_exit(0);
31     entry = ((estack_T *)exestack.ga_data) + exestack.ga_len;
32     entry->es_type = ETYPE_TOP;
33     entry->es_name = NULL;
34     entry->es_lnum = 0;
35 #ifdef FEAT_EVAL
36     entry->es_info.ufunc = NULL;
37 #endif
38     ++exestack.ga_len;
39 }
40 
41 /*
42  * Add an item to the execution stack.
43  * Returns the new entry or NULL when out of memory.
44  */
45     estack_T *
46 estack_push(etype_T type, char_u *name, long lnum)
47 {
48     estack_T *entry;
49 
50     // If memory allocation fails then we'll pop more than we push, eventually
51     // at the top level it will be OK again.
52     if (ga_grow(&exestack, 1) == OK)
53     {
54 	entry = ((estack_T *)exestack.ga_data) + exestack.ga_len;
55 	entry->es_type = type;
56 	entry->es_name = name;
57 	entry->es_lnum = lnum;
58 #ifdef FEAT_EVAL
59 	entry->es_info.ufunc = NULL;
60 #endif
61 	++exestack.ga_len;
62 	return entry;
63     }
64     return NULL;
65 }
66 
67 #if defined(FEAT_EVAL) || defined(PROTO)
68 /*
69  * Add a user function to the execution stack.
70  */
71     estack_T *
72 estack_push_ufunc(ufunc_T *ufunc, long lnum)
73 {
74     estack_T *entry = estack_push(ETYPE_UFUNC,
75 	    ufunc->uf_name_exp != NULL
76 				  ? ufunc->uf_name_exp : ufunc->uf_name, lnum);
77     if (entry != NULL)
78 	entry->es_info.ufunc = ufunc;
79     return entry;
80 }
81 
82 /*
83  * Return TRUE if "ufunc" with "lnum" is already at the top of the exe stack.
84  */
85     int
86 estack_top_is_ufunc(ufunc_T *ufunc, long lnum)
87 {
88     estack_T *entry;
89 
90     if (exestack.ga_len == 0)
91 	return FALSE;
92     entry = ((estack_T *)exestack.ga_data) + exestack.ga_len - 1;
93     return entry->es_type == ETYPE_UFUNC
94 	&& STRCMP( entry->es_name, ufunc->uf_name_exp != NULL
95 				    ? ufunc->uf_name_exp : ufunc->uf_name) == 0
96 	&& entry->es_lnum == lnum;
97 }
98 #endif
99 
100 /*
101  * Take an item off of the execution stack and return it.
102  */
103     estack_T *
104 estack_pop(void)
105 {
106     if (exestack.ga_len == 0)
107 	return NULL;
108     --exestack.ga_len;
109     return ((estack_T *)exestack.ga_data) + exestack.ga_len;
110 }
111 
112 /*
113  * Get the current value for <sfile> in allocated memory.
114  */
115     char_u *
116 estack_sfile(void)
117 {
118     estack_T	*entry;
119 #ifdef FEAT_EVAL
120     size_t	len;
121     int		idx;
122     char	*res;
123     size_t	done;
124 #endif
125 
126     entry = ((estack_T *)exestack.ga_data) + exestack.ga_len - 1;
127     if (entry->es_name == NULL)
128 	return NULL;
129 #ifdef FEAT_EVAL
130     if (entry->es_info.ufunc == NULL)
131 #endif
132 	return vim_strsave(entry->es_name);
133 
134 #ifdef FEAT_EVAL
135     // For a function we compose the call stack, as it was done in the past:
136     //   "function One[123]..Two[456]..Three"
137     len = STRLEN(entry->es_name) + 10;
138     for (idx = exestack.ga_len - 2; idx >= 0; --idx)
139     {
140 	entry = ((estack_T *)exestack.ga_data) + idx;
141 	if (entry->es_name == NULL || entry->es_info.ufunc == NULL)
142 	{
143 	    ++idx;
144 	    break;
145 	}
146 	len += STRLEN(entry->es_name) + 15;
147     }
148 
149     res = (char *)alloc((int)len);
150     if (res != NULL)
151     {
152 	STRCPY(res, "function ");
153 	while (idx < exestack.ga_len - 1)
154 	{
155 	    done = STRLEN(res);
156 	    entry = ((estack_T *)exestack.ga_data) + idx;
157 	    vim_snprintf(res + done, len - done, "%s[%ld]..",
158 					       entry->es_name, entry->es_lnum);
159 	    ++idx;
160 	}
161 	done = STRLEN(res);
162 	entry = ((estack_T *)exestack.ga_data) + idx;
163 	vim_snprintf(res + done, len - done, "%s", entry->es_name);
164     }
165     return (char_u *)res;
166 #endif
167 }
168 
169 /*
170  * ":runtime [what] {name}"
171  */
172     void
173 ex_runtime(exarg_T *eap)
174 {
175     char_u  *arg = eap->arg;
176     char_u  *p = skiptowhite(arg);
177     int	    len = (int)(p - arg);
178     int	    flags = eap->forceit ? DIP_ALL : 0;
179 
180     if (STRNCMP(arg, "START", len) == 0)
181     {
182 	flags += DIP_START + DIP_NORTP;
183 	arg = skipwhite(arg + len);
184     }
185     else if (STRNCMP(arg, "OPT", len) == 0)
186     {
187 	flags += DIP_OPT + DIP_NORTP;
188 	arg = skipwhite(arg + len);
189     }
190     else if (STRNCMP(arg, "PACK", len) == 0)
191     {
192 	flags += DIP_START + DIP_OPT + DIP_NORTP;
193 	arg = skipwhite(arg + len);
194     }
195     else if (STRNCMP(arg, "ALL", len) == 0)
196     {
197 	flags += DIP_START + DIP_OPT;
198 	arg = skipwhite(arg + len);
199     }
200 
201     source_runtime(arg, flags);
202 }
203 
204     static void
205 source_callback(char_u *fname, void *cookie)
206 {
207     (void)do_source(fname, FALSE, DOSO_NONE, cookie);
208 }
209 
210 /*
211  * Find the file "name" in all directories in "path" and invoke
212  * "callback(fname, cookie)".
213  * "name" can contain wildcards.
214  * When "flags" has DIP_ALL: source all files, otherwise only the first one.
215  * When "flags" has DIP_DIR: find directories instead of files.
216  * When "flags" has DIP_ERR: give an error message if there is no match.
217  *
218  * return FAIL when no file could be sourced, OK otherwise.
219  */
220     int
221 do_in_path(
222     char_u	*path,
223     char_u	*name,
224     int		flags,
225     void	(*callback)(char_u *fname, void *ck),
226     void	*cookie)
227 {
228     char_u	*rtp;
229     char_u	*np;
230     char_u	*buf;
231     char_u	*rtp_copy;
232     char_u	*tail;
233     int		num_files;
234     char_u	**files;
235     int		i;
236     int		did_one = FALSE;
237 #ifdef AMIGA
238     struct Process	*proc = (struct Process *)FindTask(0L);
239     APTR		save_winptr = proc->pr_WindowPtr;
240 
241     // Avoid a requester here for a volume that doesn't exist.
242     proc->pr_WindowPtr = (APTR)-1L;
243 #endif
244 
245     // Make a copy of 'runtimepath'.  Invoking the callback may change the
246     // value.
247     rtp_copy = vim_strsave(path);
248     buf = alloc(MAXPATHL);
249     if (buf != NULL && rtp_copy != NULL)
250     {
251 	if (p_verbose > 10 && name != NULL)
252 	{
253 	    verbose_enter();
254 	    smsg(_("Searching for \"%s\" in \"%s\""),
255 						 (char *)name, (char *)path);
256 	    verbose_leave();
257 	}
258 
259 	// Loop over all entries in 'runtimepath'.
260 	rtp = rtp_copy;
261 	while (*rtp != NUL && ((flags & DIP_ALL) || !did_one))
262 	{
263 	    size_t buflen;
264 
265 	    // Copy the path from 'runtimepath' to buf[].
266 	    copy_option_part(&rtp, buf, MAXPATHL, ",");
267 	    buflen = STRLEN(buf);
268 
269 	    // Skip after or non-after directories.
270 	    if (flags & (DIP_NOAFTER | DIP_AFTER))
271 	    {
272 		int is_after = buflen >= 5
273 				     && STRCMP(buf + buflen - 5, "after") == 0;
274 
275 		if ((is_after && (flags & DIP_NOAFTER))
276 			|| (!is_after && (flags & DIP_AFTER)))
277 		    continue;
278 	    }
279 
280 	    if (name == NULL)
281 	    {
282 		(*callback)(buf, (void *) &cookie);
283 		if (!did_one)
284 		    did_one = (cookie == NULL);
285 	    }
286 	    else if (buflen + STRLEN(name) + 2 < MAXPATHL)
287 	    {
288 		add_pathsep(buf);
289 		tail = buf + STRLEN(buf);
290 
291 		// Loop over all patterns in "name"
292 		np = name;
293 		while (*np != NUL && ((flags & DIP_ALL) || !did_one))
294 		{
295 		    // Append the pattern from "name" to buf[].
296 		    copy_option_part(&np, tail, (int)(MAXPATHL - (tail - buf)),
297 								       "\t ");
298 
299 		    if (p_verbose > 10)
300 		    {
301 			verbose_enter();
302 			smsg(_("Searching for \"%s\""), buf);
303 			verbose_leave();
304 		    }
305 
306 		    // Expand wildcards, invoke the callback for each match.
307 		    if (gen_expand_wildcards(1, &buf, &num_files, &files,
308 				  (flags & DIP_DIR) ? EW_DIR : EW_FILE) == OK)
309 		    {
310 			for (i = 0; i < num_files; ++i)
311 			{
312 			    (*callback)(files[i], cookie);
313 			    did_one = TRUE;
314 			    if (!(flags & DIP_ALL))
315 				break;
316 			}
317 			FreeWild(num_files, files);
318 		    }
319 		}
320 	    }
321 	}
322     }
323     vim_free(buf);
324     vim_free(rtp_copy);
325     if (!did_one && name != NULL)
326     {
327 	char *basepath = path == p_rtp ? "runtimepath" : "packpath";
328 
329 	if (flags & DIP_ERR)
330 	    semsg(_(e_dirnotf), basepath, name);
331 	else if (p_verbose > 0)
332 	{
333 	    verbose_enter();
334 	    smsg(_("not found in '%s': \"%s\""), basepath, name);
335 	    verbose_leave();
336 	}
337     }
338 
339 #ifdef AMIGA
340     proc->pr_WindowPtr = save_winptr;
341 #endif
342 
343     return did_one ? OK : FAIL;
344 }
345 
346 /*
347  * Find "name" in "path".  When found, invoke the callback function for
348  * it: callback(fname, "cookie")
349  * When "flags" has DIP_ALL repeat for all matches, otherwise only the first
350  * one is used.
351  * Returns OK when at least one match found, FAIL otherwise.
352  *
353  * If "name" is NULL calls callback for each entry in "path". Cookie is
354  * passed by reference in this case, setting it to NULL indicates that callback
355  * has done its job.
356  */
357     static int
358 do_in_path_and_pp(
359     char_u	*path,
360     char_u	*name,
361     int		flags,
362     void	(*callback)(char_u *fname, void *ck),
363     void	*cookie)
364 {
365     int		done = FAIL;
366     char_u	*s;
367     int		len;
368     char	*start_dir = "pack/*/start/*/%s";
369     char	*opt_dir = "pack/*/opt/*/%s";
370 
371     if ((flags & DIP_NORTP) == 0)
372 	done = do_in_path(path, name, flags, callback, cookie);
373 
374     if ((done == FAIL || (flags & DIP_ALL)) && (flags & DIP_START))
375     {
376 	len = (int)(STRLEN(start_dir) + STRLEN(name));
377 	s = alloc(len);
378 	if (s == NULL)
379 	    return FAIL;
380 	vim_snprintf((char *)s, len, start_dir, name);
381 	done = do_in_path(p_pp, s, flags, callback, cookie);
382 	vim_free(s);
383     }
384 
385     if ((done == FAIL || (flags & DIP_ALL)) && (flags & DIP_OPT))
386     {
387 	len = (int)(STRLEN(opt_dir) + STRLEN(name));
388 	s = alloc(len);
389 	if (s == NULL)
390 	    return FAIL;
391 	vim_snprintf((char *)s, len, opt_dir, name);
392 	done = do_in_path(p_pp, s, flags, callback, cookie);
393 	vim_free(s);
394     }
395 
396     return done;
397 }
398 
399 /*
400  * Just like do_in_path_and_pp(), using 'runtimepath' for "path".
401  */
402     int
403 do_in_runtimepath(
404     char_u	*name,
405     int		flags,
406     void	(*callback)(char_u *fname, void *ck),
407     void	*cookie)
408 {
409     return do_in_path_and_pp(p_rtp, name, flags, callback, cookie);
410 }
411 
412 /*
413  * Source the file "name" from all directories in 'runtimepath'.
414  * "name" can contain wildcards.
415  * When "flags" has DIP_ALL: source all files, otherwise only the first one.
416  *
417  * return FAIL when no file could be sourced, OK otherwise.
418  */
419     int
420 source_runtime(char_u *name, int flags)
421 {
422     return source_in_path(p_rtp, name, flags, NULL);
423 }
424 
425 /*
426  * Just like source_runtime(), but use "path" instead of 'runtimepath'.
427  */
428     int
429 source_in_path(char_u *path, char_u *name, int flags, int *ret_sid)
430 {
431     return do_in_path_and_pp(path, name, flags, source_callback, ret_sid);
432 }
433 
434 
435 #if defined(FEAT_EVAL) || defined(PROTO)
436 
437 /*
438  * Expand wildcards in "pat" and invoke do_source() for each match.
439  */
440     static void
441 source_all_matches(char_u *pat)
442 {
443     int	    num_files;
444     char_u  **files;
445     int	    i;
446 
447     if (gen_expand_wildcards(1, &pat, &num_files, &files, EW_FILE) == OK)
448     {
449 	for (i = 0; i < num_files; ++i)
450 	    (void)do_source(files[i], FALSE, DOSO_NONE, NULL);
451 	FreeWild(num_files, files);
452     }
453 }
454 
455 /*
456  * Add the package directory to 'runtimepath'.
457  */
458     static int
459 add_pack_dir_to_rtp(char_u *fname)
460 {
461     char_u  *p4, *p3, *p2, *p1, *p;
462     char_u  *entry;
463     char_u  *insp = NULL;
464     int	    c;
465     char_u  *new_rtp;
466     int	    keep;
467     size_t  oldlen;
468     size_t  addlen;
469     size_t  new_rtp_len;
470     char_u  *afterdir = NULL;
471     size_t  afterlen = 0;
472     char_u  *after_insp = NULL;
473     char_u  *ffname = NULL;
474     size_t  fname_len;
475     char_u  *buf = NULL;
476     char_u  *rtp_ffname;
477     int	    match;
478     int	    retval = FAIL;
479 
480     p4 = p3 = p2 = p1 = get_past_head(fname);
481     for (p = p1; *p; MB_PTR_ADV(p))
482 	if (vim_ispathsep_nocolon(*p))
483 	{
484 	    p4 = p3; p3 = p2; p2 = p1; p1 = p;
485 	}
486 
487     // now we have:
488     // rtp/pack/name/start/name
489     //    p4   p3   p2    p1
490     //
491     // find the part up to "pack" in 'runtimepath'
492     c = *++p4; // append pathsep in order to expand symlink
493     *p4 = NUL;
494     ffname = fix_fname(fname);
495     *p4 = c;
496     if (ffname == NULL)
497 	return FAIL;
498 
499     // Find "ffname" in "p_rtp", ignoring '/' vs '\' differences.
500     // Also stop at the first "after" directory.
501     fname_len = STRLEN(ffname);
502     buf = alloc(MAXPATHL);
503     if (buf == NULL)
504 	goto theend;
505     for (entry = p_rtp; *entry != NUL; )
506     {
507 	char_u *cur_entry = entry;
508 
509 	copy_option_part(&entry, buf, MAXPATHL, ",");
510 	if (insp == NULL)
511 	{
512 	    add_pathsep(buf);
513 	    rtp_ffname = fix_fname(buf);
514 	    if (rtp_ffname == NULL)
515 		goto theend;
516 	    match = vim_fnamencmp(rtp_ffname, ffname, fname_len) == 0;
517 	    vim_free(rtp_ffname);
518 	    if (match)
519 		// Insert "ffname" after this entry (and comma).
520 		insp = entry;
521 	}
522 
523 	if ((p = (char_u *)strstr((char *)buf, "after")) != NULL
524 		&& p > buf
525 		&& vim_ispathsep(p[-1])
526 		&& (vim_ispathsep(p[5]) || p[5] == NUL || p[5] == ','))
527 	{
528 	    if (insp == NULL)
529 		// Did not find "ffname" before the first "after" directory,
530 		// insert it before this entry.
531 		insp = cur_entry;
532 	    after_insp = cur_entry;
533 	    break;
534 	}
535     }
536 
537     if (insp == NULL)
538 	// Both "fname" and "after" not found, append at the end.
539 	insp = p_rtp + STRLEN(p_rtp);
540 
541     // check if rtp/pack/name/start/name/after exists
542     afterdir = concat_fnames(fname, (char_u *)"after", TRUE);
543     if (afterdir != NULL && mch_isdir(afterdir))
544 	afterlen = STRLEN(afterdir) + 1; // add one for comma
545 
546     oldlen = STRLEN(p_rtp);
547     addlen = STRLEN(fname) + 1; // add one for comma
548     new_rtp = alloc(oldlen + addlen + afterlen + 1); // add one for NUL
549     if (new_rtp == NULL)
550 	goto theend;
551 
552     // We now have 'rtp' parts: {keep}{keep_after}{rest}.
553     // Create new_rtp, first: {keep},{fname}
554     keep = (int)(insp - p_rtp);
555     mch_memmove(new_rtp, p_rtp, keep);
556     new_rtp_len = keep;
557     if (*insp == NUL)
558 	new_rtp[new_rtp_len++] = ',';  // add comma before
559     mch_memmove(new_rtp + new_rtp_len, fname, addlen - 1);
560     new_rtp_len += addlen - 1;
561     if (*insp != NUL)
562 	new_rtp[new_rtp_len++] = ',';  // add comma after
563 
564     if (afterlen > 0 && after_insp != NULL)
565     {
566 	int keep_after = (int)(after_insp - p_rtp);
567 
568 	// Add to new_rtp: {keep},{fname}{keep_after},{afterdir}
569 	mch_memmove(new_rtp + new_rtp_len, p_rtp + keep,
570 							keep_after - keep);
571 	new_rtp_len += keep_after - keep;
572 	mch_memmove(new_rtp + new_rtp_len, afterdir, afterlen - 1);
573 	new_rtp_len += afterlen - 1;
574 	new_rtp[new_rtp_len++] = ',';
575 	keep = keep_after;
576     }
577 
578     if (p_rtp[keep] != NUL)
579 	// Append rest: {keep},{fname}{keep_after},{afterdir}{rest}
580 	mch_memmove(new_rtp + new_rtp_len, p_rtp + keep, oldlen - keep + 1);
581     else
582 	new_rtp[new_rtp_len] = NUL;
583 
584     if (afterlen > 0 && after_insp == NULL)
585     {
586 	// Append afterdir when "after" was not found:
587 	// {keep},{fname}{rest},{afterdir}
588 	STRCAT(new_rtp, ",");
589 	STRCAT(new_rtp, afterdir);
590     }
591 
592     set_option_value((char_u *)"rtp", 0L, new_rtp, 0);
593     vim_free(new_rtp);
594     retval = OK;
595 
596 theend:
597     vim_free(buf);
598     vim_free(ffname);
599     vim_free(afterdir);
600     return retval;
601 }
602 
603 /*
604  * Load scripts in "plugin" and "ftdetect" directories of the package.
605  */
606     static int
607 load_pack_plugin(char_u *fname)
608 {
609     static char *plugpat = "%s/plugin/**/*.vim";
610     static char *ftpat = "%s/ftdetect/*.vim";
611     int		len;
612     char_u	*ffname = fix_fname(fname);
613     char_u	*pat = NULL;
614     int		retval = FAIL;
615 
616     if (ffname == NULL)
617 	return FAIL;
618     len = (int)STRLEN(ffname) + (int)STRLEN(ftpat);
619     pat = alloc(len);
620     if (pat == NULL)
621 	goto theend;
622     vim_snprintf((char *)pat, len, plugpat, ffname);
623     source_all_matches(pat);
624 
625     {
626 	char_u *cmd = vim_strsave((char_u *)"g:did_load_filetypes");
627 
628 	// If runtime/filetype.vim wasn't loaded yet, the scripts will be
629 	// found when it loads.
630 	if (cmd != NULL && eval_to_number(cmd) > 0)
631 	{
632 	    do_cmdline_cmd((char_u *)"augroup filetypedetect");
633 	    vim_snprintf((char *)pat, len, ftpat, ffname);
634 	    source_all_matches(pat);
635 	    do_cmdline_cmd((char_u *)"augroup END");
636 	}
637 	vim_free(cmd);
638     }
639     vim_free(pat);
640     retval = OK;
641 
642 theend:
643     vim_free(ffname);
644     return retval;
645 }
646 
647 // used for "cookie" of add_pack_plugin()
648 static int APP_ADD_DIR;
649 static int APP_LOAD;
650 static int APP_BOTH;
651 
652     static void
653 add_pack_plugin(char_u *fname, void *cookie)
654 {
655     if (cookie != &APP_LOAD)
656     {
657 	char_u	*buf = alloc(MAXPATHL);
658 	char_u	*p;
659 	int	found = FALSE;
660 
661 	if (buf == NULL)
662 	    return;
663 	p = p_rtp;
664 	while (*p != NUL)
665 	{
666 	    copy_option_part(&p, buf, MAXPATHL, ",");
667 	    if (pathcmp((char *)buf, (char *)fname, -1) == 0)
668 	    {
669 		found = TRUE;
670 		break;
671 	    }
672 	}
673 	vim_free(buf);
674 	if (!found)
675 	    // directory is not yet in 'runtimepath', add it
676 	    if (add_pack_dir_to_rtp(fname) == FAIL)
677 		return;
678     }
679 
680     if (cookie != &APP_ADD_DIR)
681 	load_pack_plugin(fname);
682 }
683 
684 /*
685  * Add all packages in the "start" directory to 'runtimepath'.
686  */
687     void
688 add_pack_start_dirs(void)
689 {
690     do_in_path(p_pp, (char_u *)"pack/*/start/*", DIP_ALL + DIP_DIR,
691 					       add_pack_plugin, &APP_ADD_DIR);
692 }
693 
694 /*
695  * Load plugins from all packages in the "start" directory.
696  */
697     void
698 load_start_packages(void)
699 {
700     did_source_packages = TRUE;
701     do_in_path(p_pp, (char_u *)"pack/*/start/*", DIP_ALL + DIP_DIR,
702 						  add_pack_plugin, &APP_LOAD);
703 }
704 
705 /*
706  * ":packloadall"
707  * Find plugins in the package directories and source them.
708  */
709     void
710 ex_packloadall(exarg_T *eap)
711 {
712     if (!did_source_packages || eap->forceit)
713     {
714 	// First do a round to add all directories to 'runtimepath', then load
715 	// the plugins. This allows for plugins to use an autoload directory
716 	// of another plugin.
717 	add_pack_start_dirs();
718 	load_start_packages();
719     }
720 }
721 
722 /*
723  * ":packadd[!] {name}"
724  */
725     void
726 ex_packadd(exarg_T *eap)
727 {
728     static char *plugpat = "pack/*/%s/%s";
729     int		len;
730     char	*pat;
731     int		round;
732     int		res = OK;
733 
734     // Round 1: use "start", round 2: use "opt".
735     for (round = 1; round <= 2; ++round)
736     {
737 	// Only look under "start" when loading packages wasn't done yet.
738 	if (round == 1 && did_source_packages)
739 	    continue;
740 
741 	len = (int)STRLEN(plugpat) + (int)STRLEN(eap->arg) + 5;
742 	pat = alloc(len);
743 	if (pat == NULL)
744 	    return;
745 	vim_snprintf(pat, len, plugpat, round == 1 ? "start" : "opt", eap->arg);
746 	// The first round don't give a "not found" error, in the second round
747 	// only when nothing was found in the first round.
748 	res = do_in_path(p_pp, (char_u *)pat,
749 		DIP_ALL + DIP_DIR + (round == 2 && res == FAIL ? DIP_ERR : 0),
750 		add_pack_plugin, eap->forceit ? &APP_ADD_DIR : &APP_BOTH);
751 	vim_free(pat);
752     }
753 }
754 #endif
755 
756 /*
757  * Sort "gap" and remove duplicate entries.  "gap" is expected to contain a
758  * list of file names in allocated memory.
759  */
760     void
761 remove_duplicates(garray_T *gap)
762 {
763     int	    i;
764     int	    j;
765     char_u  **fnames = (char_u **)gap->ga_data;
766 
767     sort_strings(fnames, gap->ga_len);
768     for (i = gap->ga_len - 1; i > 0; --i)
769 	if (fnamecmp(fnames[i - 1], fnames[i]) == 0)
770 	{
771 	    vim_free(fnames[i]);
772 	    for (j = i + 1; j < gap->ga_len; ++j)
773 		fnames[j - 1] = fnames[j];
774 	    --gap->ga_len;
775 	}
776 }
777 
778 /*
779  * Expand color scheme, compiler or filetype names.
780  * Search from 'runtimepath':
781  *   'runtimepath'/{dirnames}/{pat}.vim
782  * When "flags" has DIP_START: search also from 'start' of 'packpath':
783  *   'packpath'/pack/ * /start/ * /{dirnames}/{pat}.vim
784  * When "flags" has DIP_OPT: search also from 'opt' of 'packpath':
785  *   'packpath'/pack/ * /opt/ * /{dirnames}/{pat}.vim
786  * "dirnames" is an array with one or more directory names.
787  */
788     int
789 ExpandRTDir(
790     char_u	*pat,
791     int		flags,
792     int		*num_file,
793     char_u	***file,
794     char	*dirnames[])
795 {
796     char_u	*s;
797     char_u	*e;
798     char_u	*match;
799     garray_T	ga;
800     int		i;
801     int		pat_len;
802 
803     *num_file = 0;
804     *file = NULL;
805     pat_len = (int)STRLEN(pat);
806     ga_init2(&ga, (int)sizeof(char *), 10);
807 
808     for (i = 0; dirnames[i] != NULL; ++i)
809     {
810 	s = alloc(STRLEN(dirnames[i]) + pat_len + 7);
811 	if (s == NULL)
812 	{
813 	    ga_clear_strings(&ga);
814 	    return FAIL;
815 	}
816 	sprintf((char *)s, "%s/%s*.vim", dirnames[i], pat);
817 	globpath(p_rtp, s, &ga, 0);
818 	vim_free(s);
819     }
820 
821     if (flags & DIP_START) {
822 	for (i = 0; dirnames[i] != NULL; ++i)
823 	{
824 	    s = alloc(STRLEN(dirnames[i]) + pat_len + 22);
825 	    if (s == NULL)
826 	    {
827 		ga_clear_strings(&ga);
828 		return FAIL;
829 	    }
830 	    sprintf((char *)s, "pack/*/start/*/%s/%s*.vim", dirnames[i], pat);
831 	    globpath(p_pp, s, &ga, 0);
832 	    vim_free(s);
833 	}
834     }
835 
836     if (flags & DIP_OPT) {
837 	for (i = 0; dirnames[i] != NULL; ++i)
838 	{
839 	    s = alloc(STRLEN(dirnames[i]) + pat_len + 20);
840 	    if (s == NULL)
841 	    {
842 		ga_clear_strings(&ga);
843 		return FAIL;
844 	    }
845 	    sprintf((char *)s, "pack/*/opt/*/%s/%s*.vim", dirnames[i], pat);
846 	    globpath(p_pp, s, &ga, 0);
847 	    vim_free(s);
848 	}
849     }
850 
851     for (i = 0; i < ga.ga_len; ++i)
852     {
853 	match = ((char_u **)ga.ga_data)[i];
854 	s = match;
855 	e = s + STRLEN(s);
856 	if (e - 4 > s && STRNICMP(e - 4, ".vim", 4) == 0)
857 	{
858 	    e -= 4;
859 	    for (s = e; s > match; MB_PTR_BACK(match, s))
860 		if (s < match || vim_ispathsep(*s))
861 		    break;
862 	    ++s;
863 	    *e = NUL;
864 	    mch_memmove(match, s, e - s + 1);
865 	}
866     }
867 
868     if (ga.ga_len == 0)
869 	return FAIL;
870 
871     // Sort and remove duplicates which can happen when specifying multiple
872     // directories in dirnames.
873     remove_duplicates(&ga);
874 
875     *file = ga.ga_data;
876     *num_file = ga.ga_len;
877     return OK;
878 }
879 
880 /*
881  * Expand loadplugin names:
882  * 'packpath'/pack/ * /opt/{pat}
883  */
884     int
885 ExpandPackAddDir(
886     char_u	*pat,
887     int		*num_file,
888     char_u	***file)
889 {
890     char_u	*s;
891     char_u	*e;
892     char_u	*match;
893     garray_T	ga;
894     int		i;
895     int		pat_len;
896 
897     *num_file = 0;
898     *file = NULL;
899     pat_len = (int)STRLEN(pat);
900     ga_init2(&ga, (int)sizeof(char *), 10);
901 
902     s = alloc(pat_len + 26);
903     if (s == NULL)
904     {
905 	ga_clear_strings(&ga);
906 	return FAIL;
907     }
908     sprintf((char *)s, "pack/*/opt/%s*", pat);
909     globpath(p_pp, s, &ga, 0);
910     vim_free(s);
911 
912     for (i = 0; i < ga.ga_len; ++i)
913     {
914 	match = ((char_u **)ga.ga_data)[i];
915 	s = gettail(match);
916 	e = s + STRLEN(s);
917 	mch_memmove(match, s, e - s + 1);
918     }
919 
920     if (ga.ga_len == 0)
921 	return FAIL;
922 
923     // Sort and remove duplicates which can happen when specifying multiple
924     // directories in dirnames.
925     remove_duplicates(&ga);
926 
927     *file = ga.ga_data;
928     *num_file = ga.ga_len;
929     return OK;
930 }
931 
932     static void
933 cmd_source(char_u *fname, exarg_T *eap)
934 {
935     if (*fname == NUL)
936 	emsg(_(e_argreq));
937 
938     else if (eap != NULL && eap->forceit)
939 	// ":source!": read Normal mode commands
940 	// Need to execute the commands directly.  This is required at least
941 	// for:
942 	// - ":g" command busy
943 	// - after ":argdo", ":windo" or ":bufdo"
944 	// - another command follows
945 	// - inside a loop
946 	openscript(fname, global_busy || listcmd_busy || eap->nextcmd != NULL
947 #ifdef FEAT_EVAL
948 						 || eap->cstack->cs_idx >= 0
949 #endif
950 						 );
951 
952     // ":source" read ex commands
953     else if (do_source(fname, FALSE, DOSO_NONE, NULL) == FAIL)
954 	semsg(_(e_notopen), fname);
955 }
956 
957 /*
958  * ":source {fname}"
959  */
960     void
961 ex_source(exarg_T *eap)
962 {
963 #ifdef FEAT_BROWSE
964     if (cmdmod.browse)
965     {
966 	char_u *fname = NULL;
967 
968 	fname = do_browse(0, (char_u *)_("Source Vim script"), eap->arg,
969 				      NULL, NULL,
970 				      (char_u *)_(BROWSE_FILTER_MACROS), NULL);
971 	if (fname != NULL)
972 	{
973 	    cmd_source(fname, eap);
974 	    vim_free(fname);
975 	}
976     }
977     else
978 #endif
979 	cmd_source(eap->arg, eap);
980 }
981 
982 #if defined(FEAT_EVAL) || defined(PROTO)
983 /*
984  * ":options"
985  */
986     void
987 ex_options(
988     exarg_T	*eap UNUSED)
989 {
990     char_u  buf[500];
991     int	    multi_mods = 0;
992 
993     buf[0] = NUL;
994     (void)add_win_cmd_modifers(buf, &multi_mods);
995 
996     vim_setenv((char_u *)"OPTWIN_CMD", buf);
997     cmd_source((char_u *)SYS_OPTWIN_FILE, NULL);
998 }
999 #endif
1000 
1001 /*
1002  * ":source" and associated commands.
1003  */
1004 /*
1005  * Structure used to store info for each sourced file.
1006  * It is shared between do_source() and getsourceline().
1007  * This is required, because it needs to be handed to do_cmdline() and
1008  * sourcing can be done recursively.
1009  */
1010 struct source_cookie
1011 {
1012     FILE	*fp;		// opened file for sourcing
1013     char_u	*nextline;	// if not NULL: line that was read ahead
1014     linenr_T	sourcing_lnum;	// line number of the source file
1015     int		finished;	// ":finish" used
1016 #ifdef USE_CRNL
1017     int		fileformat;	// EOL_UNKNOWN, EOL_UNIX or EOL_DOS
1018     int		error;		// TRUE if LF found after CR-LF
1019 #endif
1020 #ifdef FEAT_EVAL
1021     linenr_T	breakpoint;	// next line with breakpoint or zero
1022     char_u	*fname;		// name of sourced file
1023     int		dbg_tick;	// debug_tick when breakpoint was set
1024     int		level;		// top nesting level of sourced file
1025 #endif
1026     vimconv_T	conv;		// type of conversion
1027 };
1028 
1029 #ifdef FEAT_EVAL
1030 /*
1031  * Return the address holding the next breakpoint line for a source cookie.
1032  */
1033     linenr_T *
1034 source_breakpoint(void *cookie)
1035 {
1036     return &((struct source_cookie *)cookie)->breakpoint;
1037 }
1038 
1039 /*
1040  * Return the address holding the debug tick for a source cookie.
1041  */
1042     int *
1043 source_dbg_tick(void *cookie)
1044 {
1045     return &((struct source_cookie *)cookie)->dbg_tick;
1046 }
1047 
1048 /*
1049  * Return the nesting level for a source cookie.
1050  */
1051     int
1052 source_level(void *cookie)
1053 {
1054     return ((struct source_cookie *)cookie)->level;
1055 }
1056 
1057 /*
1058  * Return the readahead line.
1059  */
1060     char_u *
1061 source_nextline(void *cookie)
1062 {
1063     return ((struct source_cookie *)cookie)->nextline;
1064 }
1065 #endif
1066 
1067 #if (defined(MSWIN) && defined(FEAT_CSCOPE)) || defined(HAVE_FD_CLOEXEC)
1068 # define USE_FOPEN_NOINH
1069 /*
1070  * Special function to open a file without handle inheritance.
1071  * When possible the handle is closed on exec().
1072  */
1073     static FILE *
1074 fopen_noinh_readbin(char *filename)
1075 {
1076 # ifdef MSWIN
1077     int	fd_tmp = mch_open(filename, O_RDONLY | O_BINARY | O_NOINHERIT, 0);
1078 # else
1079     int	fd_tmp = mch_open(filename, O_RDONLY, 0);
1080 # endif
1081 
1082     if (fd_tmp == -1)
1083 	return NULL;
1084 
1085 # ifdef HAVE_FD_CLOEXEC
1086     {
1087 	int fdflags = fcntl(fd_tmp, F_GETFD);
1088 	if (fdflags >= 0 && (fdflags & FD_CLOEXEC) == 0)
1089 	    (void)fcntl(fd_tmp, F_SETFD, fdflags | FD_CLOEXEC);
1090     }
1091 # endif
1092 
1093     return fdopen(fd_tmp, READBIN);
1094 }
1095 #endif
1096 
1097 /*
1098  * do_source: Read the file "fname" and execute its lines as EX commands.
1099  * When "ret_sid" is not NULL and we loaded the script before, don't load it
1100  * again.
1101  *
1102  * This function may be called recursively!
1103  *
1104  * Return FAIL if file could not be opened, OK otherwise.
1105  * If a scriptitem_T was found or created "*ret_sid" is set to the SID.
1106  */
1107     int
1108 do_source(
1109     char_u	*fname,
1110     int		check_other,	    // check for .vimrc and _vimrc
1111     int		is_vimrc,	    // DOSO_ value
1112     int		*ret_sid UNUSED)
1113 {
1114     struct source_cookie    cookie;
1115     char_u		    *p;
1116     char_u		    *fname_exp;
1117     char_u		    *firstline = NULL;
1118     int			    retval = FAIL;
1119 #ifdef FEAT_EVAL
1120     sctx_T		    save_current_sctx;
1121     static scid_T	    last_current_SID = 0;
1122     static int		    last_current_SID_seq = 0;
1123     funccal_entry_T	    funccalp_entry;
1124     int			    save_debug_break_level = debug_break_level;
1125     int			    sid;
1126     scriptitem_T	    *si = NULL;
1127 #endif
1128 #ifdef STARTUPTIME
1129     struct timeval	    tv_rel;
1130     struct timeval	    tv_start;
1131 #endif
1132 #ifdef FEAT_PROFILE
1133     proftime_T		    wait_start;
1134 #endif
1135     int			    trigger_source_post = FALSE;
1136     ESTACK_CHECK_DECLARATION
1137 
1138     p = expand_env_save(fname);
1139     if (p == NULL)
1140 	return retval;
1141     fname_exp = fix_fname(p);
1142     vim_free(p);
1143     if (fname_exp == NULL)
1144 	return retval;
1145     if (mch_isdir(fname_exp))
1146     {
1147 	smsg(_("Cannot source a directory: \"%s\""), fname);
1148 	goto theend;
1149     }
1150 
1151 #ifdef FEAT_EVAL
1152     // See if we loaded this script before.
1153     for (sid = script_items.ga_len; sid > 0; --sid)
1154     {
1155 	// We used to check inode here, but that doesn't work:
1156 	// - If a script is edited and written, it may get a different
1157 	//   inode number, even though to the user it is the same script.
1158 	// - If a script is deleted and another script is written, with a
1159 	//   different name, the inode may be re-used.
1160 	si = SCRIPT_ITEM(sid);
1161 	if (si->sn_name != NULL && fnamecmp(si->sn_name, fname_exp) == 0)
1162 		// Found it!
1163 		break;
1164     }
1165     if (sid > 0 && ret_sid != NULL)
1166     {
1167 	// Already loaded and no need to load again, return here.
1168 	*ret_sid = sid;
1169 	retval = OK;
1170 	goto theend;
1171     }
1172 #endif
1173 
1174     // Apply SourceCmd autocommands, they should get the file and source it.
1175     if (has_autocmd(EVENT_SOURCECMD, fname_exp, NULL)
1176 	    && apply_autocmds(EVENT_SOURCECMD, fname_exp, fname_exp,
1177 							       FALSE, curbuf))
1178     {
1179 #ifdef FEAT_EVAL
1180 	retval = aborting() ? FAIL : OK;
1181 #else
1182 	retval = OK;
1183 #endif
1184 	if (retval == OK)
1185 	    // Apply SourcePost autocommands.
1186 	    apply_autocmds(EVENT_SOURCEPOST, fname_exp, fname_exp,
1187 								FALSE, curbuf);
1188 	goto theend;
1189     }
1190 
1191     // Apply SourcePre autocommands, they may get the file.
1192     apply_autocmds(EVENT_SOURCEPRE, fname_exp, fname_exp, FALSE, curbuf);
1193 
1194 #ifdef USE_FOPEN_NOINH
1195     cookie.fp = fopen_noinh_readbin((char *)fname_exp);
1196 #else
1197     cookie.fp = mch_fopen((char *)fname_exp, READBIN);
1198 #endif
1199     if (cookie.fp == NULL && check_other)
1200     {
1201 	// Try again, replacing file name ".vimrc" by "_vimrc" or vice versa,
1202 	// and ".exrc" by "_exrc" or vice versa.
1203 	p = gettail(fname_exp);
1204 	if ((*p == '.' || *p == '_')
1205 		&& (STRICMP(p + 1, "vimrc") == 0
1206 		    || STRICMP(p + 1, "gvimrc") == 0
1207 		    || STRICMP(p + 1, "exrc") == 0))
1208 	{
1209 	    if (*p == '_')
1210 		*p = '.';
1211 	    else
1212 		*p = '_';
1213 #ifdef USE_FOPEN_NOINH
1214 	    cookie.fp = fopen_noinh_readbin((char *)fname_exp);
1215 #else
1216 	    cookie.fp = mch_fopen((char *)fname_exp, READBIN);
1217 #endif
1218 	}
1219     }
1220 
1221     if (cookie.fp == NULL)
1222     {
1223 	if (p_verbose > 0)
1224 	{
1225 	    verbose_enter();
1226 	    if (SOURCING_NAME == NULL)
1227 		smsg(_("could not source \"%s\""), fname);
1228 	    else
1229 		smsg(_("line %ld: could not source \"%s\""),
1230 							SOURCING_LNUM, fname);
1231 	    verbose_leave();
1232 	}
1233 	goto theend;
1234     }
1235 
1236     // The file exists.
1237     // - In verbose mode, give a message.
1238     // - For a vimrc file, may want to set 'compatible', call vimrc_found().
1239     if (p_verbose > 1)
1240     {
1241 	verbose_enter();
1242 	if (SOURCING_NAME == NULL)
1243 	    smsg(_("sourcing \"%s\""), fname);
1244 	else
1245 	    smsg(_("line %ld: sourcing \"%s\""), SOURCING_LNUM, fname);
1246 	verbose_leave();
1247     }
1248     if (is_vimrc == DOSO_VIMRC)
1249 	vimrc_found(fname_exp, (char_u *)"MYVIMRC");
1250     else if (is_vimrc == DOSO_GVIMRC)
1251 	vimrc_found(fname_exp, (char_u *)"MYGVIMRC");
1252 
1253 #ifdef USE_CRNL
1254     // If no automatic file format: Set default to CR-NL.
1255     if (*p_ffs == NUL)
1256 	cookie.fileformat = EOL_DOS;
1257     else
1258 	cookie.fileformat = EOL_UNKNOWN;
1259     cookie.error = FALSE;
1260 #endif
1261 
1262     cookie.nextline = NULL;
1263     cookie.sourcing_lnum = 0;
1264     cookie.finished = FALSE;
1265 
1266 #ifdef FEAT_EVAL
1267     // Check if this script has a breakpoint.
1268     cookie.breakpoint = dbg_find_breakpoint(TRUE, fname_exp, (linenr_T)0);
1269     cookie.fname = fname_exp;
1270     cookie.dbg_tick = debug_tick;
1271 
1272     cookie.level = ex_nesting_level;
1273 #endif
1274 
1275     // Keep the sourcing name/lnum, for recursive calls.
1276     estack_push(ETYPE_SCRIPT, fname_exp, 0);
1277     ESTACK_CHECK_SETUP
1278 
1279 #ifdef STARTUPTIME
1280     if (time_fd != NULL)
1281 	time_push(&tv_rel, &tv_start);
1282 #endif
1283 
1284 #ifdef FEAT_EVAL
1285 # ifdef FEAT_PROFILE
1286     if (do_profiling == PROF_YES)
1287 	prof_child_enter(&wait_start);		// entering a child now
1288 # endif
1289 
1290     // Don't use local function variables, if called from a function.
1291     // Also starts profiling timer for nested script.
1292     save_funccal(&funccalp_entry);
1293 
1294     save_current_sctx = current_sctx;
1295     current_sctx.sc_lnum = 0;
1296     current_sctx.sc_version = 1;  // default script version
1297 
1298     // Check if this script was sourced before to finds its SID.
1299     // Always use a new sequence number.
1300     current_sctx.sc_seq = ++last_current_SID_seq;
1301     if (sid > 0)
1302     {
1303 	hashtab_T	*ht;
1304 	int		is_vim9 = si->sn_version == SCRIPT_VERSION_VIM9;
1305 
1306 	// loading the same script again
1307 	si->sn_had_command = FALSE;
1308 	si->sn_version = 1;
1309 	current_sctx.sc_sid = sid;
1310 
1311 	// In Vim9 script all script-local variables are removed when reloading
1312 	// the same script.  In legacy script they remain but "const" can be
1313 	// set again.
1314 	ht = &SCRIPT_VARS(sid);
1315 	if (is_vim9)
1316 	    hashtab_free_contents(ht);
1317 	else
1318 	{
1319 	    int		todo = (int)ht->ht_used;
1320 	    hashitem_T	*hi;
1321 	    dictitem_T	*di;
1322 
1323 	    for (hi = ht->ht_array; todo > 0; ++hi)
1324 		if (!HASHITEM_EMPTY(hi))
1325 		{
1326 		    --todo;
1327 		    di = HI2DI(hi);
1328 		    di->di_flags |= DI_FLAGS_RELOAD;
1329 		}
1330 	}
1331 
1332 	// old imports are no longer valid
1333 	free_imports(sid);
1334 
1335 	// in Vim9 script functions are marked deleted
1336 	if (is_vim9)
1337 	    delete_script_functions(sid);
1338     }
1339     else
1340     {
1341 	// It's new, generate a new SID.
1342 	current_sctx.sc_sid = ++last_current_SID;
1343 	if (ga_grow(&script_items,
1344 		     (int)(current_sctx.sc_sid - script_items.ga_len)) == FAIL)
1345 	    goto almosttheend;
1346 	while (script_items.ga_len < current_sctx.sc_sid)
1347 	{
1348 	    si = ALLOC_CLEAR_ONE(scriptitem_T);
1349 	    if (si == NULL)
1350 		goto almosttheend;
1351 	    ++script_items.ga_len;
1352 	    SCRIPT_ITEM(script_items.ga_len) = si;
1353 	    si->sn_name = NULL;
1354 	    si->sn_version = 1;
1355 
1356 	    // Allocate the local script variables to use for this script.
1357 	    new_script_vars(script_items.ga_len);
1358 	    ga_init2(&si->sn_var_vals, sizeof(svar_T), 10);
1359 	    ga_init2(&si->sn_imports, sizeof(imported_T), 10);
1360 	    ga_init2(&si->sn_type_list, sizeof(type_T), 10);
1361 # ifdef FEAT_PROFILE
1362 	    si->sn_prof_on = FALSE;
1363 # endif
1364 	}
1365 	si = SCRIPT_ITEM(current_sctx.sc_sid);
1366 	si->sn_name = fname_exp;
1367 	fname_exp = vim_strsave(si->sn_name);  // used for autocmd
1368 	if (ret_sid != NULL)
1369 	    *ret_sid = current_sctx.sc_sid;
1370     }
1371 
1372 # ifdef FEAT_PROFILE
1373     if (do_profiling == PROF_YES)
1374     {
1375 	int	forceit;
1376 
1377 	// Check if we do profiling for this script.
1378 	if (!si->sn_prof_on && has_profiling(TRUE, si->sn_name, &forceit))
1379 	{
1380 	    script_do_profile(si);
1381 	    si->sn_pr_force = forceit;
1382 	}
1383 	if (si->sn_prof_on)
1384 	{
1385 	    ++si->sn_pr_count;
1386 	    profile_start(&si->sn_pr_start);
1387 	    profile_zero(&si->sn_pr_children);
1388 	}
1389     }
1390 # endif
1391 #endif
1392 
1393     cookie.conv.vc_type = CONV_NONE;		// no conversion
1394 
1395     // Read the first line so we can check for a UTF-8 BOM.
1396     firstline = getsourceline(0, (void *)&cookie, 0, TRUE);
1397     if (firstline != NULL && STRLEN(firstline) >= 3 && firstline[0] == 0xef
1398 			      && firstline[1] == 0xbb && firstline[2] == 0xbf)
1399     {
1400 	// Found BOM; setup conversion, skip over BOM and recode the line.
1401 	convert_setup(&cookie.conv, (char_u *)"utf-8", p_enc);
1402 	p = string_convert(&cookie.conv, firstline + 3, NULL);
1403 	if (p == NULL)
1404 	    p = vim_strsave(firstline + 3);
1405 	if (p != NULL)
1406 	{
1407 	    vim_free(firstline);
1408 	    firstline = p;
1409 	}
1410     }
1411 
1412     // Call do_cmdline, which will call getsourceline() to get the lines.
1413     do_cmdline(firstline, getsourceline, (void *)&cookie,
1414 				     DOCMD_VERBOSE|DOCMD_NOWAIT|DOCMD_REPEAT);
1415     retval = OK;
1416 
1417 #ifdef FEAT_PROFILE
1418     if (do_profiling == PROF_YES)
1419     {
1420 	// Get "si" again, "script_items" may have been reallocated.
1421 	si = SCRIPT_ITEM(current_sctx.sc_sid);
1422 	if (si->sn_prof_on)
1423 	{
1424 	    profile_end(&si->sn_pr_start);
1425 	    profile_sub_wait(&wait_start, &si->sn_pr_start);
1426 	    profile_add(&si->sn_pr_total, &si->sn_pr_start);
1427 	    profile_self(&si->sn_pr_self, &si->sn_pr_start,
1428 							 &si->sn_pr_children);
1429 	}
1430     }
1431 #endif
1432 
1433     if (got_int)
1434 	emsg(_(e_interr));
1435     ESTACK_CHECK_NOW
1436     estack_pop();
1437     if (p_verbose > 1)
1438     {
1439 	verbose_enter();
1440 	smsg(_("finished sourcing %s"), fname);
1441 	if (SOURCING_NAME != NULL)
1442 	    smsg(_("continuing in %s"), SOURCING_NAME);
1443 	verbose_leave();
1444     }
1445 #ifdef STARTUPTIME
1446     if (time_fd != NULL)
1447     {
1448 	vim_snprintf((char *)IObuff, IOSIZE, "sourcing %s", fname);
1449 	time_msg((char *)IObuff, &tv_start);
1450 	time_pop(&tv_rel);
1451     }
1452 #endif
1453 
1454     if (!got_int)
1455 	trigger_source_post = TRUE;
1456 
1457 #ifdef FEAT_EVAL
1458     // After a "finish" in debug mode, need to break at first command of next
1459     // sourced file.
1460     if (save_debug_break_level > ex_nesting_level
1461 	    && debug_break_level == ex_nesting_level)
1462 	++debug_break_level;
1463 #endif
1464 
1465 #ifdef FEAT_EVAL
1466 almosttheend:
1467     // Get "si" again, "script_items" may have been reallocated.
1468     si = SCRIPT_ITEM(current_sctx.sc_sid);
1469     if (si->sn_save_cpo != NULL)
1470     {
1471 	free_string_option(p_cpo);
1472 	p_cpo = si->sn_save_cpo;
1473 	si->sn_save_cpo = NULL;
1474     }
1475 
1476     current_sctx = save_current_sctx;
1477     restore_funccal();
1478 # ifdef FEAT_PROFILE
1479     if (do_profiling == PROF_YES)
1480 	prof_child_exit(&wait_start);		// leaving a child now
1481 # endif
1482 #endif
1483     fclose(cookie.fp);
1484     vim_free(cookie.nextline);
1485     vim_free(firstline);
1486     convert_setup(&cookie.conv, NULL, NULL);
1487 
1488     if (trigger_source_post)
1489 	apply_autocmds(EVENT_SOURCEPOST, fname_exp, fname_exp, FALSE, curbuf);
1490 
1491 theend:
1492     vim_free(fname_exp);
1493     return retval;
1494 }
1495 
1496 #if defined(FEAT_EVAL) || defined(PROTO)
1497 
1498 /*
1499  * ":scriptnames"
1500  */
1501     void
1502 ex_scriptnames(exarg_T *eap)
1503 {
1504     int i;
1505 
1506     if (eap->addr_count > 0)
1507     {
1508 	// :script {scriptId}: edit the script
1509 	if (eap->line2 < 1 || eap->line2 > script_items.ga_len)
1510 	    emsg(_(e_invarg));
1511 	else
1512 	{
1513 	    eap->arg = SCRIPT_ITEM(eap->line2)->sn_name;
1514 	    do_exedit(eap, NULL);
1515 	}
1516 	return;
1517     }
1518 
1519     for (i = 1; i <= script_items.ga_len && !got_int; ++i)
1520 	if (SCRIPT_ITEM(i)->sn_name != NULL)
1521 	{
1522 	    home_replace(NULL, SCRIPT_ITEM(i)->sn_name,
1523 						    NameBuff, MAXPATHL, TRUE);
1524 	    smsg("%3d: %s", i, NameBuff);
1525 	}
1526 }
1527 
1528 # if defined(BACKSLASH_IN_FILENAME) || defined(PROTO)
1529 /*
1530  * Fix slashes in the list of script names for 'shellslash'.
1531  */
1532     void
1533 scriptnames_slash_adjust(void)
1534 {
1535     int i;
1536 
1537     for (i = 1; i <= script_items.ga_len; ++i)
1538 	if (SCRIPT_ITEM(i)->sn_name != NULL)
1539 	    slash_adjust(SCRIPT_ITEM(i)->sn_name);
1540 }
1541 # endif
1542 
1543 /*
1544  * Get a pointer to a script name.  Used for ":verbose set".
1545  */
1546     char_u *
1547 get_scriptname(scid_T id)
1548 {
1549     if (id == SID_MODELINE)
1550 	return (char_u *)_("modeline");
1551     if (id == SID_CMDARG)
1552 	return (char_u *)_("--cmd argument");
1553     if (id == SID_CARG)
1554 	return (char_u *)_("-c argument");
1555     if (id == SID_ENV)
1556 	return (char_u *)_("environment variable");
1557     if (id == SID_ERROR)
1558 	return (char_u *)_("error handler");
1559     return SCRIPT_ITEM(id)->sn_name;
1560 }
1561 
1562 # if defined(EXITFREE) || defined(PROTO)
1563     void
1564 free_scriptnames(void)
1565 {
1566     int			i;
1567 
1568     for (i = script_items.ga_len; i > 0; --i)
1569     {
1570 	scriptitem_T *si = SCRIPT_ITEM(i);
1571 
1572 	// the variables themselves are cleared in evalvars_clear()
1573 	vim_free(si->sn_vars);
1574 
1575 	vim_free(si->sn_name);
1576 	free_imports(i);
1577 	free_string_option(si->sn_save_cpo);
1578 #  ifdef FEAT_PROFILE
1579 	ga_clear(&si->sn_prl_ga);
1580 #  endif
1581 	vim_free(si);
1582     }
1583     ga_clear(&script_items);
1584 }
1585 
1586     void
1587 free_autoload_scriptnames(void)
1588 {
1589     ga_clear_strings(&ga_loaded);
1590 }
1591 # endif
1592 
1593 #endif
1594 
1595     linenr_T
1596 get_sourced_lnum(char_u *(*fgetline)(int, void *, int, int), void *cookie)
1597 {
1598     return fgetline == getsourceline
1599 			? ((struct source_cookie *)cookie)->sourcing_lnum
1600 			: SOURCING_LNUM;
1601 }
1602 
1603     static char_u *
1604 get_one_sourceline(struct source_cookie *sp)
1605 {
1606     garray_T		ga;
1607     int			len;
1608     int			c;
1609     char_u		*buf;
1610 #ifdef USE_CRNL
1611     int			has_cr;		// CR-LF found
1612 #endif
1613     int			have_read = FALSE;
1614 
1615     // use a growarray to store the sourced line
1616     ga_init2(&ga, 1, 250);
1617 
1618     // Loop until there is a finished line (or end-of-file).
1619     ++sp->sourcing_lnum;
1620     for (;;)
1621     {
1622 	// make room to read at least 120 (more) characters
1623 	if (ga_grow(&ga, 120) == FAIL)
1624 	    break;
1625 	buf = (char_u *)ga.ga_data;
1626 
1627 	if (fgets((char *)buf + ga.ga_len, ga.ga_maxlen - ga.ga_len,
1628 							      sp->fp) == NULL)
1629 	    break;
1630 	len = ga.ga_len + (int)STRLEN(buf + ga.ga_len);
1631 #ifdef USE_CRNL
1632 	// Ignore a trailing CTRL-Z, when in Dos mode.	Only recognize the
1633 	// CTRL-Z by its own, or after a NL.
1634 	if (	   (len == 1 || (len >= 2 && buf[len - 2] == '\n'))
1635 		&& sp->fileformat == EOL_DOS
1636 		&& buf[len - 1] == Ctrl_Z)
1637 	{
1638 	    buf[len - 1] = NUL;
1639 	    break;
1640 	}
1641 #endif
1642 
1643 	have_read = TRUE;
1644 	ga.ga_len = len;
1645 
1646 	// If the line was longer than the buffer, read more.
1647 	if (ga.ga_maxlen - ga.ga_len == 1 && buf[len - 1] != '\n')
1648 	    continue;
1649 
1650 	if (len >= 1 && buf[len - 1] == '\n')	// remove trailing NL
1651 	{
1652 #ifdef USE_CRNL
1653 	    has_cr = (len >= 2 && buf[len - 2] == '\r');
1654 	    if (sp->fileformat == EOL_UNKNOWN)
1655 	    {
1656 		if (has_cr)
1657 		    sp->fileformat = EOL_DOS;
1658 		else
1659 		    sp->fileformat = EOL_UNIX;
1660 	    }
1661 
1662 	    if (sp->fileformat == EOL_DOS)
1663 	    {
1664 		if (has_cr)	    // replace trailing CR
1665 		{
1666 		    buf[len - 2] = '\n';
1667 		    --len;
1668 		    --ga.ga_len;
1669 		}
1670 		else	    // lines like ":map xx yy^M" will have failed
1671 		{
1672 		    if (!sp->error)
1673 		    {
1674 			msg_source(HL_ATTR(HLF_W));
1675 			emsg(_("W15: Warning: Wrong line separator, ^M may be missing"));
1676 		    }
1677 		    sp->error = TRUE;
1678 		    sp->fileformat = EOL_UNIX;
1679 		}
1680 	    }
1681 #endif
1682 	    // The '\n' is escaped if there is an odd number of ^V's just
1683 	    // before it, first set "c" just before the 'V's and then check
1684 	    // len&c parities (is faster than ((len-c)%2 == 0)) -- Acevedo
1685 	    for (c = len - 2; c >= 0 && buf[c] == Ctrl_V; c--)
1686 		;
1687 	    if ((len & 1) != (c & 1))	// escaped NL, read more
1688 	    {
1689 		++sp->sourcing_lnum;
1690 		continue;
1691 	    }
1692 
1693 	    buf[len - 1] = NUL;		// remove the NL
1694 	}
1695 
1696 	// Check for ^C here now and then, so recursive :so can be broken.
1697 	line_breakcheck();
1698 	break;
1699     }
1700 
1701     if (have_read)
1702 	return (char_u *)ga.ga_data;
1703 
1704     vim_free(ga.ga_data);
1705     return NULL;
1706 }
1707 
1708 /*
1709  * Get one full line from a sourced file.
1710  * Called by do_cmdline() when it's called from do_source().
1711  *
1712  * Return a pointer to the line in allocated memory.
1713  * Return NULL for end-of-file or some error.
1714  */
1715     char_u *
1716 getsourceline(int c UNUSED, void *cookie, int indent UNUSED, int do_concat)
1717 {
1718     struct source_cookie *sp = (struct source_cookie *)cookie;
1719     char_u		*line;
1720     char_u		*p;
1721 
1722 #ifdef FEAT_EVAL
1723     // If breakpoints have been added/deleted need to check for it.
1724     if (sp->dbg_tick < debug_tick)
1725     {
1726 	sp->breakpoint = dbg_find_breakpoint(TRUE, sp->fname, SOURCING_LNUM);
1727 	sp->dbg_tick = debug_tick;
1728     }
1729 # ifdef FEAT_PROFILE
1730     if (do_profiling == PROF_YES)
1731 	script_line_end();
1732 # endif
1733 #endif
1734 
1735     // Set the current sourcing line number.
1736     SOURCING_LNUM = sp->sourcing_lnum + 1;
1737 
1738     // Get current line.  If there is a read-ahead line, use it, otherwise get
1739     // one now.
1740     if (sp->finished)
1741 	line = NULL;
1742     else if (sp->nextline == NULL)
1743 	line = get_one_sourceline(sp);
1744     else
1745     {
1746 	line = sp->nextline;
1747 	sp->nextline = NULL;
1748 	++sp->sourcing_lnum;
1749     }
1750 #ifdef FEAT_PROFILE
1751     if (line != NULL && do_profiling == PROF_YES)
1752 	script_line_start();
1753 #endif
1754 
1755     // Only concatenate lines starting with a \ when 'cpoptions' doesn't
1756     // contain the 'C' flag.
1757     if (line != NULL && do_concat && vim_strchr(p_cpo, CPO_CONCAT) == NULL)
1758     {
1759 	// compensate for the one line read-ahead
1760 	--sp->sourcing_lnum;
1761 
1762 	// Get the next line and concatenate it when it starts with a
1763 	// backslash. We always need to read the next line, keep it in
1764 	// sp->nextline.
1765 	/* Also check for a comment in between continuation lines: "\ */
1766 	sp->nextline = get_one_sourceline(sp);
1767 	if (sp->nextline != NULL
1768 		&& (*(p = skipwhite(sp->nextline)) == '\\'
1769 			      || (p[0] == '"' && p[1] == '\\' && p[2] == ' ')))
1770 	{
1771 	    garray_T    ga;
1772 
1773 	    ga_init2(&ga, (int)sizeof(char_u), 400);
1774 	    ga_concat(&ga, line);
1775 	    if (*p == '\\')
1776 		ga_concat(&ga, p + 1);
1777 	    for (;;)
1778 	    {
1779 		vim_free(sp->nextline);
1780 		sp->nextline = get_one_sourceline(sp);
1781 		if (sp->nextline == NULL)
1782 		    break;
1783 		p = skipwhite(sp->nextline);
1784 		if (*p == '\\')
1785 		{
1786 		    // Adjust the growsize to the current length to speed up
1787 		    // concatenating many lines.
1788 		    if (ga.ga_len > 400)
1789 		    {
1790 			if (ga.ga_len > 8000)
1791 			    ga.ga_growsize = 8000;
1792 			else
1793 			    ga.ga_growsize = ga.ga_len;
1794 		    }
1795 		    ga_concat(&ga, p + 1);
1796 		}
1797 		else if (p[0] != '"' || p[1] != '\\' || p[2] != ' ')
1798 		    break;
1799 	    }
1800 	    ga_append(&ga, NUL);
1801 	    vim_free(line);
1802 	    line = ga.ga_data;
1803 	}
1804     }
1805 
1806     if (line != NULL && sp->conv.vc_type != CONV_NONE)
1807     {
1808 	char_u	*s;
1809 
1810 	// Convert the encoding of the script line.
1811 	s = string_convert(&sp->conv, line, NULL);
1812 	if (s != NULL)
1813 	{
1814 	    vim_free(line);
1815 	    line = s;
1816 	}
1817     }
1818 
1819 #ifdef FEAT_EVAL
1820     // Did we encounter a breakpoint?
1821     if (sp->breakpoint != 0 && sp->breakpoint <= SOURCING_LNUM)
1822     {
1823 	dbg_breakpoint(sp->fname, SOURCING_LNUM);
1824 	// Find next breakpoint.
1825 	sp->breakpoint = dbg_find_breakpoint(TRUE, sp->fname, SOURCING_LNUM);
1826 	sp->dbg_tick = debug_tick;
1827     }
1828 #endif
1829 
1830     return line;
1831 }
1832 
1833 /*
1834  * ":scriptencoding": Set encoding conversion for a sourced script.
1835  */
1836     void
1837 ex_scriptencoding(exarg_T *eap)
1838 {
1839     struct source_cookie	*sp;
1840     char_u			*name;
1841 
1842     if (!getline_equal(eap->getline, eap->cookie, getsourceline))
1843     {
1844 	emsg(_("E167: :scriptencoding used outside of a sourced file"));
1845 	return;
1846     }
1847 
1848     if (*eap->arg != NUL)
1849     {
1850 	name = enc_canonize(eap->arg);
1851 	if (name == NULL)	// out of memory
1852 	    return;
1853     }
1854     else
1855 	name = eap->arg;
1856 
1857     // Setup for conversion from the specified encoding to 'encoding'.
1858     sp = (struct source_cookie *)getline_cookie(eap->getline, eap->cookie);
1859     convert_setup(&sp->conv, name, p_enc);
1860 
1861     if (name != eap->arg)
1862 	vim_free(name);
1863 }
1864 
1865 /*
1866  * ":scriptversion": Set Vim script version for a sourced script.
1867  */
1868     void
1869 ex_scriptversion(exarg_T *eap UNUSED)
1870 {
1871 #ifdef FEAT_EVAL
1872     int		nr;
1873 
1874     if (!getline_equal(eap->getline, eap->cookie, getsourceline))
1875     {
1876 	emsg(_("E984: :scriptversion used outside of a sourced file"));
1877 	return;
1878     }
1879     if (current_sctx.sc_version == SCRIPT_VERSION_VIM9)
1880     {
1881 	emsg(_("E1040: Cannot use :scriptversion after :vim9script"));
1882 	return;
1883     }
1884 
1885     nr = getdigits(&eap->arg);
1886     if (nr == 0 || *eap->arg != NUL)
1887 	emsg(_(e_invarg));
1888     else if (nr > SCRIPT_VERSION_MAX)
1889 	semsg(_("E999: scriptversion not supported: %d"), nr);
1890     else
1891     {
1892 	current_sctx.sc_version = nr;
1893 	SCRIPT_ITEM(current_sctx.sc_sid)->sn_version = nr;
1894     }
1895 #endif
1896 }
1897 
1898 #if defined(FEAT_EVAL) || defined(PROTO)
1899 /*
1900  * ":finish": Mark a sourced file as finished.
1901  */
1902     void
1903 ex_finish(exarg_T *eap)
1904 {
1905     if (getline_equal(eap->getline, eap->cookie, getsourceline))
1906 	do_finish(eap, FALSE);
1907     else
1908 	emsg(_("E168: :finish used outside of a sourced file"));
1909 }
1910 
1911 /*
1912  * Mark a sourced file as finished.  Possibly makes the ":finish" pending.
1913  * Also called for a pending finish at the ":endtry" or after returning from
1914  * an extra do_cmdline().  "reanimate" is used in the latter case.
1915  */
1916     void
1917 do_finish(exarg_T *eap, int reanimate)
1918 {
1919     int		idx;
1920 
1921     if (reanimate)
1922 	((struct source_cookie *)getline_cookie(eap->getline,
1923 					      eap->cookie))->finished = FALSE;
1924 
1925     // Cleanup (and inactivate) conditionals, but stop when a try conditional
1926     // not in its finally clause (which then is to be executed next) is found.
1927     // In this case, make the ":finish" pending for execution at the ":endtry".
1928     // Otherwise, finish normally.
1929     idx = cleanup_conditionals(eap->cstack, 0, TRUE);
1930     if (idx >= 0)
1931     {
1932 	eap->cstack->cs_pending[idx] = CSTP_FINISH;
1933 	report_make_pending(CSTP_FINISH, NULL);
1934     }
1935     else
1936 	((struct source_cookie *)getline_cookie(eap->getline,
1937 					       eap->cookie))->finished = TRUE;
1938 }
1939 
1940 
1941 /*
1942  * Return TRUE when a sourced file had the ":finish" command: Don't give error
1943  * message for missing ":endif".
1944  * Return FALSE when not sourcing a file.
1945  */
1946     int
1947 source_finished(
1948     char_u	*(*fgetline)(int, void *, int, int),
1949     void	*cookie)
1950 {
1951     return (getline_equal(fgetline, cookie, getsourceline)
1952 	    && ((struct source_cookie *)getline_cookie(
1953 						fgetline, cookie))->finished);
1954 }
1955 
1956 /*
1957  * Return the autoload script name for a function or variable name.
1958  * Returns NULL when out of memory.
1959  * Caller must make sure that "name" contains AUTOLOAD_CHAR.
1960  */
1961     char_u *
1962 autoload_name(char_u *name)
1963 {
1964     char_u	*p, *q = NULL;
1965     char_u	*scriptname;
1966 
1967     // Get the script file name: replace '#' with '/', append ".vim".
1968     scriptname = alloc(STRLEN(name) + 14);
1969     if (scriptname == NULL)
1970 	return NULL;
1971     STRCPY(scriptname, "autoload/");
1972     STRCAT(scriptname, name);
1973     for (p = scriptname + 9; (p = vim_strchr(p, AUTOLOAD_CHAR)) != NULL;
1974 								    q = p, ++p)
1975 	*p = '/';
1976     STRCPY(q, ".vim");
1977     return scriptname;
1978 }
1979 
1980 /*
1981  * If "name" has a package name try autoloading the script for it.
1982  * Return TRUE if a package was loaded.
1983  */
1984     int
1985 script_autoload(
1986     char_u	*name,
1987     int		reload)	    // load script again when already loaded
1988 {
1989     char_u	*p;
1990     char_u	*scriptname, *tofree;
1991     int		ret = FALSE;
1992     int		i;
1993 
1994     // If there is no '#' after name[0] there is no package name.
1995     p = vim_strchr(name, AUTOLOAD_CHAR);
1996     if (p == NULL || p == name)
1997 	return FALSE;
1998 
1999     tofree = scriptname = autoload_name(name);
2000     if (scriptname == NULL)
2001 	return FALSE;
2002 
2003     // Find the name in the list of previously loaded package names.  Skip
2004     // "autoload/", it's always the same.
2005     for (i = 0; i < ga_loaded.ga_len; ++i)
2006 	if (STRCMP(((char_u **)ga_loaded.ga_data)[i] + 9, scriptname + 9) == 0)
2007 	    break;
2008     if (!reload && i < ga_loaded.ga_len)
2009 	ret = FALSE;	    // was loaded already
2010     else
2011     {
2012 	// Remember the name if it wasn't loaded already.
2013 	if (i == ga_loaded.ga_len && ga_grow(&ga_loaded, 1) == OK)
2014 	{
2015 	    ((char_u **)ga_loaded.ga_data)[ga_loaded.ga_len++] = scriptname;
2016 	    tofree = NULL;
2017 	}
2018 
2019 	// Try loading the package from $VIMRUNTIME/autoload/<name>.vim
2020 	if (source_runtime(scriptname, 0) == OK)
2021 	    ret = TRUE;
2022     }
2023 
2024     vim_free(tofree);
2025     return ret;
2026 }
2027 #endif
2028