(japanese-shift-jis): Add charset-origin-alist property.
[bpt/emacs.git] / src / dired.c
... / ...
CommitLineData
1/* Lisp functions for making directory listings.
2 Copyright (C) 1985, 1986, 1993, 1994 Free Software Foundation, Inc.
3
4This file is part of GNU Emacs.
5
6GNU Emacs is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2, or (at your option)
9any later version.
10
11GNU Emacs is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GNU Emacs; see the file COPYING. If not, write to
18the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19Boston, MA 02111-1307, USA. */
20
21
22#include <config.h>
23
24#include <stdio.h>
25#include <sys/types.h>
26#include <sys/stat.h>
27
28#ifdef VMS
29#include <string.h>
30#include <rms.h>
31#include <rmsdef.h>
32#endif
33
34#ifdef HAVE_UNISTD_H
35#include <unistd.h>
36#endif
37
38/* The d_nameln member of a struct dirent includes the '\0' character
39 on some systems, but not on others. What's worse, you can't tell
40 at compile-time which one it will be, since it really depends on
41 the sort of system providing the filesystem you're reading from,
42 not the system you are running on. Paul Eggert
43 <eggert@bi.twinsun.com> says this occurs when Emacs is running on a
44 SunOS 4.1.2 host, reading a directory that is remote-mounted from a
45 Solaris 2.1 host and is in a native Solaris 2.1 filesystem.
46
47 Since applying strlen to the name always works, we'll just do that. */
48#define NAMLEN(p) strlen (p->d_name)
49
50#ifdef SYSV_SYSTEM_DIR
51
52#include <dirent.h>
53#define DIRENTRY struct dirent
54
55#else /* not SYSV_SYSTEM_DIR */
56
57#ifdef NONSYSTEM_DIR_LIBRARY
58#include "ndir.h"
59#else /* not NONSYSTEM_DIR_LIBRARY */
60#ifdef MSDOS
61#include <dirent.h>
62#else
63#include <sys/dir.h>
64#endif
65#endif /* not NONSYSTEM_DIR_LIBRARY */
66
67#ifndef MSDOS
68#define DIRENTRY struct direct
69
70extern DIR *opendir ();
71extern struct direct *readdir ();
72
73#endif /* not MSDOS */
74#endif /* not SYSV_SYSTEM_DIR */
75
76#ifdef MSDOS
77#define DIRENTRY_NONEMPTY(p) ((p)->d_name[0] != 0)
78#else
79#define DIRENTRY_NONEMPTY(p) ((p)->d_ino)
80#endif
81
82#include "lisp.h"
83#include "buffer.h"
84#include "commands.h"
85#include "charset.h"
86#include "coding.h"
87#include "regex.h"
88
89/* Returns a search buffer, with a fastmap allocated and ready to go. */
90extern struct re_pattern_buffer *compile_pattern ();
91
92#define min(a, b) ((a) < (b) ? (a) : (b))
93
94/* if system does not have symbolic links, it does not have lstat.
95 In that case, use ordinary stat instead. */
96
97#ifndef S_IFLNK
98#define lstat stat
99#endif
100
101extern int completion_ignore_case;
102extern Lisp_Object Vcompletion_regexp_list;
103extern Lisp_Object Vfile_name_coding_system, Vdefault_file_name_coding_system;
104
105Lisp_Object Vcompletion_ignored_extensions;
106Lisp_Object Qcompletion_ignore_case;
107Lisp_Object Qdirectory_files;
108Lisp_Object Qfile_name_completion;
109Lisp_Object Qfile_name_all_completions;
110Lisp_Object Qfile_attributes;
111\f
112DEFUN ("directory-files", Fdirectory_files, Sdirectory_files, 1, 4, 0,
113 "Return a list of names of files in DIRECTORY.\n\
114There are three optional arguments:\n\
115If FULL is non-nil, return absolute file names. Otherwise return names\n\
116 that are relative to the specified directory.\n\
117If MATCH is non-nil, mention only file names that match the regexp MATCH.\n\
118If NOSORT is non-nil, the list is not sorted--its order is unpredictable.\n\
119 NOSORT is useful if you plan to sort the result yourself.")
120 (directory, full, match, nosort)
121 Lisp_Object directory, full, match, nosort;
122{
123 DIR *d;
124 int dirnamelen;
125 Lisp_Object list, name, dirfilename;
126 Lisp_Object encoded_directory;
127 Lisp_Object handler;
128 struct re_pattern_buffer *bufp;
129 int needsep = 0;
130 struct gcpro gcpro1, gcpro2;
131
132 /* If the file name has special constructs in it,
133 call the corresponding file handler. */
134 handler = Ffind_file_name_handler (directory, Qdirectory_files);
135 if (!NILP (handler))
136 {
137 Lisp_Object args[6];
138
139 args[0] = handler;
140 args[1] = Qdirectory_files;
141 args[2] = directory;
142 args[3] = full;
143 args[4] = match;
144 args[5] = nosort;
145 return Ffuncall (6, args);
146 }
147
148 /* Because of file name handlers, these functions might call
149 Ffuncall, and cause a GC. */
150 GCPRO1 (match);
151 directory = Fexpand_file_name (directory, Qnil);
152 UNGCPRO;
153 GCPRO2 (match, directory);
154 dirfilename = Fdirectory_file_name (directory);
155 UNGCPRO;
156
157 if (!NILP (match))
158 {
159 CHECK_STRING (match, 3);
160
161 /* MATCH might be a flawed regular expression. Rather than
162 catching and signaling our own errors, we just call
163 compile_pattern to do the work for us. */
164 /* Pass 1 for the MULTIBYTE arg
165 because we do make multibyte strings if the contents warrant. */
166#ifdef VMS
167 bufp = compile_pattern (match, 0,
168 buffer_defaults.downcase_table, 0, 1);
169#else
170 bufp = compile_pattern (match, 0, Qnil, 0, 1);
171#endif
172 }
173
174 dirfilename = ENCODE_FILE (dirfilename);
175
176 encoded_directory = ENCODE_FILE (directory);
177
178 /* Now *bufp is the compiled form of MATCH; don't call anything
179 which might compile a new regexp until we're done with the loop! */
180
181 /* Do this opendir after anything which might signal an error; if
182 an error is signaled while the directory stream is open, we
183 have to make sure it gets closed, and setting up an
184 unwind_protect to do so would be a pain. */
185 d = opendir (XSTRING (dirfilename)->data);
186 if (! d)
187 report_file_error ("Opening directory", Fcons (directory, Qnil));
188
189 list = Qnil;
190 dirnamelen = STRING_BYTES (XSTRING (directory));
191 re_match_object = Qt;
192
193 /* Decide whether we need to add a directory separator. */
194#ifndef VMS
195 if (dirnamelen == 0
196 || !IS_ANY_SEP (XSTRING (directory)->data[dirnamelen - 1]))
197 needsep = 1;
198#endif /* not VMS */
199
200 GCPRO2 (encoded_directory, list);
201
202 /* Loop reading blocks */
203 while (1)
204 {
205 DIRENTRY *dp = readdir (d);
206
207 if (!dp) break;
208 if (DIRENTRY_NONEMPTY (dp))
209 {
210 int len;
211
212 len = NAMLEN (dp);
213 name = DECODE_FILE (make_string (dp->d_name, len));
214 len = STRING_BYTES (XSTRING (name));
215
216 if (NILP (match)
217 || (0 <= re_search (bufp, XSTRING (name)->data, len, 0, len, 0)))
218 {
219 if (!NILP (full))
220 {
221 int afterdirindex = dirnamelen;
222 int total = len + dirnamelen;
223 int nchars;
224 Lisp_Object fullname;
225
226 fullname = make_uninit_multibyte_string (total + needsep,
227 total + needsep);
228 bcopy (XSTRING (directory)->data, XSTRING (fullname)->data,
229 dirnamelen);
230 if (needsep)
231 XSTRING (fullname)->data[afterdirindex++] = DIRECTORY_SEP;
232 bcopy (XSTRING (name)->data,
233 XSTRING (fullname)->data + afterdirindex, len);
234 nchars = chars_in_text (XSTRING (fullname)->data,
235 afterdirindex + len);
236 XSTRING (fullname)->size = nchars;
237 if (nchars == STRING_BYTES (XSTRING (fullname)))
238 SET_STRING_BYTES (XSTRING (fullname), -1);
239 name = fullname;
240 }
241 list = Fcons (name, list);
242 }
243 }
244 }
245 closedir (d);
246 UNGCPRO;
247 if (!NILP (nosort))
248 return list;
249 return Fsort (Fnreverse (list), Qstring_lessp);
250}
251\f
252Lisp_Object file_name_completion ();
253
254DEFUN ("file-name-completion", Ffile_name_completion, Sfile_name_completion,
255 2, 2, 0,
256 "Complete file name FILE in directory DIRECTORY.\n\
257Returns the longest string\n\
258common to all file names in DIRECTORY that start with FILE.\n\
259If there is only one and FILE matches it exactly, returns t.\n\
260Returns nil if DIR contains no name starting with FILE.")
261 (file, directory)
262 Lisp_Object file, directory;
263{
264 Lisp_Object handler;
265
266 /* If the directory name has special constructs in it,
267 call the corresponding file handler. */
268 handler = Ffind_file_name_handler (directory, Qfile_name_completion);
269 if (!NILP (handler))
270 return call3 (handler, Qfile_name_completion, file, directory);
271
272 /* If the file name has special constructs in it,
273 call the corresponding file handler. */
274 handler = Ffind_file_name_handler (file, Qfile_name_completion);
275 if (!NILP (handler))
276 return call3 (handler, Qfile_name_completion, file, directory);
277
278 return file_name_completion (file, directory, 0, 0);
279}
280
281DEFUN ("file-name-all-completions", Ffile_name_all_completions,
282 Sfile_name_all_completions, 2, 2, 0,
283 "Return a list of all completions of file name FILE in directory DIRECTORY.\n\
284These are all file names in directory DIRECTORY which begin with FILE.")
285 (file, directory)
286 Lisp_Object file, directory;
287{
288 Lisp_Object handler;
289
290 /* If the directory name has special constructs in it,
291 call the corresponding file handler. */
292 handler = Ffind_file_name_handler (directory, Qfile_name_all_completions);
293 if (!NILP (handler))
294 return call3 (handler, Qfile_name_all_completions, file, directory);
295
296 /* If the file name has special constructs in it,
297 call the corresponding file handler. */
298 handler = Ffind_file_name_handler (file, Qfile_name_all_completions);
299 if (!NILP (handler))
300 return call3 (handler, Qfile_name_all_completions, file, directory);
301
302 return file_name_completion (file, directory, 1, 0);
303}
304
305static int file_name_completion_stat ();
306
307Lisp_Object
308file_name_completion (file, dirname, all_flag, ver_flag)
309 Lisp_Object file, dirname;
310 int all_flag, ver_flag;
311{
312 DIR *d;
313 DIRENTRY *dp;
314 int bestmatchsize, skip;
315 register int compare, matchsize;
316 unsigned char *p1, *p2;
317 int matchcount = 0;
318 Lisp_Object bestmatch, tem, elt, name;
319 Lisp_Object encoded_file;
320 Lisp_Object encoded_dir;
321 struct stat st;
322 int directoryp;
323 int passcount;
324 int count = specpdl_ptr - specpdl;
325 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
326
327#ifdef VMS
328 extern DIRENTRY * readdirver ();
329
330 DIRENTRY *((* readfunc) ());
331
332 /* Filename completion on VMS ignores case, since VMS filesys does. */
333 specbind (Qcompletion_ignore_case, Qt);
334
335 readfunc = readdir;
336 if (ver_flag)
337 readfunc = readdirver;
338 file = Fupcase (file);
339#else /* not VMS */
340 CHECK_STRING (file, 0);
341#endif /* not VMS */
342
343#ifdef FILE_SYSTEM_CASE
344 file = FILE_SYSTEM_CASE (file);
345#endif
346 bestmatch = Qnil;
347 encoded_file = encoded_dir = Qnil;
348 GCPRO5 (file, dirname, bestmatch, encoded_file, encoded_dir);
349 dirname = Fexpand_file_name (dirname, Qnil);
350
351 /* Do completion on the encoded file name
352 because the other names in the directory are (we presume)
353 encoded likewise. We decode the completed string at the end. */
354 encoded_file = ENCODE_FILE (file);
355
356 encoded_dir = ENCODE_FILE (dirname);
357
358 /* With passcount = 0, ignore files that end in an ignored extension.
359 If nothing found then try again with passcount = 1, don't ignore them.
360 If looking for all completions, start with passcount = 1,
361 so always take even the ignored ones.
362
363 ** It would not actually be helpful to the user to ignore any possible
364 completions when making a list of them.** */
365
366 for (passcount = !!all_flag; NILP (bestmatch) && passcount < 2; passcount++)
367 {
368 d = opendir (XSTRING (Fdirectory_file_name (encoded_dir))->data);
369 if (!d)
370 report_file_error ("Opening directory", Fcons (dirname, Qnil));
371
372 /* Loop reading blocks */
373 /* (att3b compiler bug requires do a null comparison this way) */
374 while (1)
375 {
376 DIRENTRY *dp;
377 int len;
378
379#ifdef VMS
380 dp = (*readfunc) (d);
381#else
382 dp = readdir (d);
383#endif
384 if (!dp) break;
385
386 len = NAMLEN (dp);
387
388 if (!NILP (Vquit_flag) && NILP (Vinhibit_quit))
389 goto quit;
390 if (! DIRENTRY_NONEMPTY (dp)
391 || len < XSTRING (encoded_file)->size
392 || 0 <= scmp (dp->d_name, XSTRING (encoded_file)->data,
393 XSTRING (encoded_file)->size))
394 continue;
395
396 if (file_name_completion_stat (encoded_dir, dp, &st) < 0)
397 continue;
398
399 directoryp = ((st.st_mode & S_IFMT) == S_IFDIR);
400 tem = Qnil;
401 if (directoryp)
402 {
403#ifndef TRIVIAL_DIRECTORY_ENTRY
404#define TRIVIAL_DIRECTORY_ENTRY(n) (!strcmp (n, ".") || !strcmp (n, ".."))
405#endif
406 /* "." and ".." are never interesting as completions, but are
407 actually in the way in a directory contains only one file. */
408 if (!passcount && TRIVIAL_DIRECTORY_ENTRY (dp->d_name))
409 continue;
410 }
411 else
412 {
413 /* Compare extensions-to-be-ignored against end of this file name */
414 /* if name is not an exact match against specified string */
415 if (!passcount && len > XSTRING (encoded_file)->size)
416 /* and exit this for loop if a match is found */
417 for (tem = Vcompletion_ignored_extensions;
418 CONSP (tem); tem = XCONS (tem)->cdr)
419 {
420 elt = XCONS (tem)->car;
421 if (!STRINGP (elt)) continue;
422 skip = len - XSTRING (elt)->size;
423 if (skip < 0) continue;
424
425 if (0 <= scmp (dp->d_name + skip,
426 XSTRING (elt)->data,
427 XSTRING (elt)->size))
428 continue;
429 break;
430 }
431 }
432
433 /* If an ignored-extensions match was found,
434 don't process this name as a completion. */
435 if (!passcount && CONSP (tem))
436 continue;
437
438 if (!passcount)
439 {
440 Lisp_Object regexps;
441 Lisp_Object zero;
442 XSETFASTINT (zero, 0);
443
444 /* Ignore this element if it fails to match all the regexps. */
445 for (regexps = Vcompletion_regexp_list; CONSP (regexps);
446 regexps = XCONS (regexps)->cdr)
447 {
448 tem = Fstring_match (XCONS (regexps)->car, elt, zero);
449 if (NILP (tem))
450 break;
451 }
452 if (CONSP (regexps))
453 continue;
454 }
455
456 /* Update computation of how much all possible completions match */
457
458 matchcount++;
459
460 if (all_flag || NILP (bestmatch))
461 {
462 /* This is a possible completion */
463 if (directoryp)
464 {
465 /* This completion is a directory; make it end with '/' */
466 name = Ffile_name_as_directory (make_string (dp->d_name, len));
467 }
468 else
469 name = make_string (dp->d_name, len);
470 if (all_flag)
471 {
472 name = DECODE_FILE (name);
473 bestmatch = Fcons (name, bestmatch);
474 }
475 else
476 {
477 bestmatch = name;
478 bestmatchsize = XSTRING (name)->size;
479 }
480 }
481 else
482 {
483 compare = min (bestmatchsize, len);
484 p1 = XSTRING (bestmatch)->data;
485 p2 = (unsigned char *) dp->d_name;
486 matchsize = scmp(p1, p2, compare);
487 if (matchsize < 0)
488 matchsize = compare;
489 if (completion_ignore_case)
490 {
491 /* If this is an exact match except for case,
492 use it as the best match rather than one that is not
493 an exact match. This way, we get the case pattern
494 of the actual match. */
495 /* This tests that the current file is an exact match
496 but BESTMATCH is not (it is too long). */
497 if ((matchsize == len
498 && matchsize + !!directoryp
499 < XSTRING (bestmatch)->size)
500 ||
501 /* If there is no exact match ignoring case,
502 prefer a match that does not change the case
503 of the input. */
504 /* If there is more than one exact match aside from
505 case, and one of them is exact including case,
506 prefer that one. */
507 /* This == checks that, of current file and BESTMATCH,
508 either both or neither are exact. */
509 (((matchsize == len)
510 ==
511 (matchsize + !!directoryp
512 == XSTRING (bestmatch)->size))
513 && !bcmp (p2, XSTRING (encoded_file)->data, XSTRING (encoded_file)->size)
514 && bcmp (p1, XSTRING (encoded_file)->data, XSTRING (encoded_file)->size)))
515 {
516 bestmatch = make_string (dp->d_name, len);
517 if (directoryp)
518 bestmatch = Ffile_name_as_directory (bestmatch);
519 }
520 }
521
522 /* If this dirname all matches, see if implicit following
523 slash does too. */
524 if (directoryp
525 && compare == matchsize
526 && bestmatchsize > matchsize
527 && IS_ANY_SEP (p1[matchsize]))
528 matchsize++;
529 bestmatchsize = matchsize;
530 }
531 }
532 closedir (d);
533 }
534
535 UNGCPRO;
536 bestmatch = unbind_to (count, bestmatch);
537
538 if (all_flag || NILP (bestmatch))
539 {
540 if (STRINGP (bestmatch))
541 bestmatch = DECODE_FILE (bestmatch);
542 return bestmatch;
543 }
544 if (matchcount == 1 && bestmatchsize == XSTRING (file)->size)
545 return Qt;
546 bestmatch = Fsubstring (bestmatch, make_number (0),
547 make_number (bestmatchsize));
548 /* Now that we got the right initial segment of BESTMATCH,
549 decode it from the coding system in use. */
550 bestmatch = DECODE_FILE (bestmatch);
551 return bestmatch;
552
553 quit:
554 if (d) closedir (d);
555 Vquit_flag = Qnil;
556 return Fsignal (Qquit, Qnil);
557}
558
559static int
560file_name_completion_stat (dirname, dp, st_addr)
561 Lisp_Object dirname;
562 DIRENTRY *dp;
563 struct stat *st_addr;
564{
565 int len = NAMLEN (dp);
566 int pos = XSTRING (dirname)->size;
567 int value;
568 char *fullname = (char *) alloca (len + pos + 2);
569
570#ifdef MSDOS
571#if __DJGPP__ > 1
572 /* Some fields of struct stat are *very* expensive to compute on MS-DOS,
573 but aren't required here. Avoid computing the following fields:
574 st_inode, st_size and st_nlink for directories, and the execute bits
575 in st_mode for non-directory files with non-standard extensions. */
576
577 unsigned short save_djstat_flags = _djstat_flags;
578
579 _djstat_flags = _STAT_INODE | _STAT_EXEC_MAGIC | _STAT_DIRSIZE;
580#endif /* __DJGPP__ > 1 */
581#endif /* MSDOS */
582
583 bcopy (XSTRING (dirname)->data, fullname, pos);
584#ifndef VMS
585 if (!IS_DIRECTORY_SEP (fullname[pos - 1]))
586 fullname[pos++] = DIRECTORY_SEP;
587#endif
588
589 bcopy (dp->d_name, fullname + pos, len);
590 fullname[pos + len] = 0;
591
592#ifdef S_IFLNK
593 /* We want to return success if a link points to a nonexistent file,
594 but we want to return the status for what the link points to,
595 in case it is a directory. */
596 value = lstat (fullname, st_addr);
597 stat (fullname, st_addr);
598 return value;
599#else
600 value = stat (fullname, st_addr);
601#ifdef MSDOS
602#if __DJGPP__ > 1
603 _djstat_flags = save_djstat_flags;
604#endif /* __DJGPP__ > 1 */
605#endif /* MSDOS */
606 return value;
607#endif /* S_IFLNK */
608}
609\f
610#ifdef VMS
611
612DEFUN ("file-name-all-versions", Ffile_name_all_versions,
613 Sfile_name_all_versions, 2, 2, 0,
614 "Return a list of all versions of file name FILE in directory DIRECTORY.")
615 (file, directory)
616 Lisp_Object file, directory;
617{
618 return file_name_completion (file, directory, 1, 1);
619}
620
621DEFUN ("file-version-limit", Ffile_version_limit, Sfile_version_limit, 1, 1, 0,
622 "Return the maximum number of versions allowed for FILE.\n\
623Returns nil if the file cannot be opened or if there is no version limit.")
624 (filename)
625 Lisp_Object filename;
626{
627 Lisp_Object retval;
628 struct FAB fab;
629 struct RAB rab;
630 struct XABFHC xabfhc;
631 int status;
632
633 filename = Fexpand_file_name (filename, Qnil);
634 fab = cc$rms_fab;
635 xabfhc = cc$rms_xabfhc;
636 fab.fab$l_fna = XSTRING (filename)->data;
637 fab.fab$b_fns = strlen (fab.fab$l_fna);
638 fab.fab$l_xab = (char *) &xabfhc;
639 status = sys$open (&fab, 0, 0);
640 if (status != RMS$_NORMAL) /* Probably non-existent file */
641 return Qnil;
642 sys$close (&fab, 0, 0);
643 if (xabfhc.xab$w_verlimit == 32767)
644 return Qnil; /* No version limit */
645 else
646 return make_number (xabfhc.xab$w_verlimit);
647}
648
649#endif /* VMS */
650\f
651Lisp_Object
652make_time (time)
653 int time;
654{
655 return Fcons (make_number (time >> 16),
656 Fcons (make_number (time & 0177777), Qnil));
657}
658
659DEFUN ("file-attributes", Ffile_attributes, Sfile_attributes, 1, 1, 0,
660 "Return a list of attributes of file FILENAME.\n\
661Value is nil if specified file cannot be opened.\n\
662Otherwise, list elements are:\n\
663 0. t for directory, string (name linked to) for symbolic link, or nil.\n\
664 1. Number of links to file.\n\
665 2. File uid.\n\
666 3. File gid.\n\
667 4. Last access time, as a list of two integers.\n\
668 First integer has high-order 16 bits of time, second has low 16 bits.\n\
669 5. Last modification time, likewise.\n\
670 6. Last status change time, likewise.\n\
671 7. Size in bytes (-1, if number is out of range).\n\
672 8. File modes, as a string of ten letters or dashes as in ls -l.\n\
673 9. t iff file's gid would change if file were deleted and recreated.\n\
67410. inode number.\n\
67511. Device number.\n\
676\n\
677If file does not exist, returns nil.")
678 (filename)
679 Lisp_Object filename;
680{
681 Lisp_Object values[12];
682 Lisp_Object dirname;
683 Lisp_Object encoded;
684 struct stat s;
685 struct stat sdir;
686 char modes[10];
687 Lisp_Object handler;
688
689 filename = Fexpand_file_name (filename, Qnil);
690
691 /* If the file name has special constructs in it,
692 call the corresponding file handler. */
693 handler = Ffind_file_name_handler (filename, Qfile_attributes);
694 if (!NILP (handler))
695 return call2 (handler, Qfile_attributes, filename);
696
697 encoded = ENCODE_FILE (filename);
698
699 if (lstat (XSTRING (encoded)->data, &s) < 0)
700 return Qnil;
701
702 switch (s.st_mode & S_IFMT)
703 {
704 default:
705 values[0] = Qnil; break;
706 case S_IFDIR:
707 values[0] = Qt; break;
708#ifdef S_IFLNK
709 case S_IFLNK:
710 values[0] = Ffile_symlink_p (filename); break;
711#endif
712 }
713 values[1] = make_number (s.st_nlink);
714 values[2] = make_number (s.st_uid);
715 values[3] = make_number (s.st_gid);
716 values[4] = make_time (s.st_atime);
717 values[5] = make_time (s.st_mtime);
718 values[6] = make_time (s.st_ctime);
719 values[7] = make_number ((int) s.st_size);
720 /* If the size is out of range, give back -1. */
721 if (XINT (values[7]) != s.st_size)
722 XSETINT (values[7], -1);
723 filemodestring (&s, modes);
724 values[8] = make_string (modes, 10);
725#ifdef BSD4_3 /* Gross kludge to avoid lack of "#if defined(...)" in VMS */
726#define BSD4_2 /* A new meaning to the term `backwards compatibility' */
727#endif
728#ifdef BSD4_2 /* file gid will be dir gid */
729 dirname = Ffile_name_directory (filename);
730 if (! NILP (dirname))
731 encoded = ENCODE_FILE (dirname);
732 if (! NILP (dirname) && stat (XSTRING (encoded)->data, &sdir) == 0)
733 values[9] = (sdir.st_gid != s.st_gid) ? Qt : Qnil;
734 else /* if we can't tell, assume worst */
735 values[9] = Qt;
736#else /* file gid will be egid */
737 values[9] = (s.st_gid != getegid ()) ? Qt : Qnil;
738#endif /* BSD4_2 (or BSD4_3) */
739#ifdef BSD4_3
740#undef BSD4_2 /* ok, you can look again without throwing up */
741#endif
742 /* Cast -1 to avoid warning if int is not as wide as VALBITS. */
743 if (s.st_ino & (((EMACS_INT) (-1)) << VALBITS))
744 /* To allow inode numbers larger than VALBITS, separate the bottom
745 16 bits. */
746 values[10] = Fcons (make_number (s.st_ino >> 16),
747 make_number (s.st_ino & 0xffff));
748 else
749 /* But keep the most common cases as integers. */
750 values[10] = make_number (s.st_ino);
751 values[11] = make_number (s.st_dev);
752 return Flist (sizeof(values) / sizeof(values[0]), values);
753}
754\f
755void
756syms_of_dired ()
757{
758 Qdirectory_files = intern ("directory-files");
759 Qfile_name_completion = intern ("file-name-completion");
760 Qfile_name_all_completions = intern ("file-name-all-completions");
761 Qfile_attributes = intern ("file-attributes");
762
763 staticpro (&Qdirectory_files);
764 staticpro (&Qfile_name_completion);
765 staticpro (&Qfile_name_all_completions);
766 staticpro (&Qfile_attributes);
767
768 defsubr (&Sdirectory_files);
769 defsubr (&Sfile_name_completion);
770#ifdef VMS
771 defsubr (&Sfile_name_all_versions);
772 defsubr (&Sfile_version_limit);
773#endif /* VMS */
774 defsubr (&Sfile_name_all_completions);
775 defsubr (&Sfile_attributes);
776
777#ifdef VMS
778 Qcompletion_ignore_case = intern ("completion-ignore-case");
779 staticpro (&Qcompletion_ignore_case);
780#endif /* VMS */
781
782 DEFVAR_LISP ("completion-ignored-extensions", &Vcompletion_ignored_extensions,
783 "*Completion ignores filenames ending in any string in this list.\n\
784This variable does not affect lists of possible completions,\n\
785but does affect the commands that actually do completions.");
786 Vcompletion_ignored_extensions = Qnil;
787}