1 /* Lisp functions for making directory listings.
2 Copyright (C) 1985, 1986, 1993, 1994, 1999, 2000, 2001
3 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
26 #include <sys/types.h>
42 /* The d_nameln member of a struct dirent includes the '\0' character
43 on some systems, but not on others. What's worse, you can't tell
44 at compile-time which one it will be, since it really depends on
45 the sort of system providing the filesystem you're reading from,
46 not the system you are running on. Paul Eggert
47 <eggert@bi.twinsun.com> says this occurs when Emacs is running on a
48 SunOS 4.1.2 host, reading a directory that is remote-mounted from a
49 Solaris 2.1 host and is in a native Solaris 2.1 filesystem.
51 Since applying strlen to the name always works, we'll just do that. */
52 #define NAMLEN(p) strlen (p->d_name)
54 #ifdef SYSV_SYSTEM_DIR
57 #define DIRENTRY struct dirent
59 #else /* not SYSV_SYSTEM_DIR */
61 #ifdef NONSYSTEM_DIR_LIBRARY
63 #else /* not NONSYSTEM_DIR_LIBRARY */
69 #endif /* not NONSYSTEM_DIR_LIBRARY */
74 #define DIRENTRY struct direct
76 extern DIR *opendir ();
77 extern struct direct
*readdir ();
79 #endif /* not MSDOS */
80 #endif /* not SYSV_SYSTEM_DIR */
83 #define DIRENTRY_NONEMPTY(p) ((p)->d_name[0] != 0)
85 #define DIRENTRY_NONEMPTY(p) ((p)->d_ino)
95 /* Returns a search buffer, with a fastmap allocated and ready to go. */
96 extern struct re_pattern_buffer
*compile_pattern ();
98 /* From filemode.c. Can't go in Lisp.h because of `stat'. */
99 extern void filemodestring
P_ ((struct stat
*, char *));
101 /* if system does not have symbolic links, it does not have lstat.
102 In that case, use ordinary stat instead. */
108 extern int completion_ignore_case
;
109 extern Lisp_Object Vcompletion_regexp_list
;
110 extern Lisp_Object Vfile_name_coding_system
, Vdefault_file_name_coding_system
;
112 Lisp_Object Vcompletion_ignored_extensions
;
113 Lisp_Object Qcompletion_ignore_case
;
114 Lisp_Object Qdirectory_files
;
115 Lisp_Object Qdirectory_files_and_attributes
;
116 Lisp_Object Qfile_name_completion
;
117 Lisp_Object Qfile_name_all_completions
;
118 Lisp_Object Qfile_attributes
;
119 Lisp_Object Qfile_attributes_lessp
;
123 directory_files_internal_unwind (dh
)
126 DIR *d
= (DIR *) ((XINT (XCAR (dh
)) << 16) + XINT (XCDR (dh
)));
131 /* Function shared by Fdirectory_files and Fdirectory_files_and_attributes.
132 When ATTRS is zero, return a list of directory filenames; when
133 non-zero, return a list of directory filenames and their attributes. */
136 directory_files_internal (directory
, full
, match
, nosort
, attrs
)
137 Lisp_Object directory
, full
, match
, nosort
;
141 int directory_nbytes
;
142 Lisp_Object list
, dirfilename
, encoded_directory
;
143 struct re_pattern_buffer
*bufp
= NULL
;
145 int count
= specpdl_ptr
- specpdl
;
146 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
, gcpro5
;
150 /* Because of file name handlers, these functions might call
151 Ffuncall, and cause a GC. */
152 list
= encoded_directory
= dirfilename
= Qnil
;
153 GCPRO5 (match
, directory
, list
, dirfilename
, encoded_directory
);
154 directory
= Fexpand_file_name (directory
, Qnil
);
155 dirfilename
= Fdirectory_file_name (directory
);
159 CHECK_STRING (match
);
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. */
167 bufp
= compile_pattern (match
, 0,
168 buffer_defaults
.downcase_table
, 0, 1);
170 bufp
= compile_pattern (match
, 0, Qnil
, 0, 1);
174 /* Note: ENCODE_FILE and DECODE_FILE can GC because they can run
175 run_pre_post_conversion_on_str which calls Lisp directly and
177 dirfilename
= ENCODE_FILE (dirfilename
);
178 encoded_directory
= ENCODE_FILE (directory
);
180 /* Now *bufp is the compiled form of MATCH; don't call anything
181 which might compile a new regexp until we're done with the loop! */
183 /* Do this opendir after anything which might signal an error; if
184 an error is signaled while the directory stream is open, we
185 have to make sure it gets closed, and setting up an
186 unwind_protect to do so would be a pain. */
189 d
= opendir (XSTRING (dirfilename
)->data
);
191 report_file_error ("Opening directory", Fcons (directory
, Qnil
));
193 /* Unfortunately, we can now invoke expand-file-name and
194 file-attributes on filenames, both of which can throw, so we must
195 do a proper unwind-protect. */
196 record_unwind_protect (directory_files_internal_unwind
,
197 Fcons (make_number (((unsigned long) d
) >> 16),
198 make_number (((unsigned long) d
) & 0xffff)));
200 directory_nbytes
= STRING_BYTES (XSTRING (directory
));
201 re_match_object
= Qt
;
203 /* Decide whether we need to add a directory separator. */
205 if (directory_nbytes
== 0
206 || !IS_ANY_SEP (XSTRING (directory
)->data
[directory_nbytes
- 1]))
210 /* Loop reading blocks until EOF or error. */
217 if (dp
== NULL
&& errno
== EAGAIN
)
224 if (DIRENTRY_NONEMPTY (dp
))
228 Lisp_Object name
, finalname
;
229 struct gcpro gcpro1
, gcpro2
;
232 name
= finalname
= make_unibyte_string (dp
->d_name
, len
);
233 GCPRO2 (finalname
, name
);
235 /* Note: ENCODE_FILE can GC; it should protect its argument,
237 name
= DECODE_FILE (name
);
238 len
= STRING_BYTES (XSTRING (name
));
240 /* Now that we have unwind_protect in place, we might as well
241 allow matching to be interrupted. */
246 || (0 <= re_search (bufp
, XSTRING (name
)->data
, len
, 0, len
, 0)))
255 Lisp_Object fullname
;
256 int nbytes
= len
+ directory_nbytes
+ needsep
;
259 fullname
= make_uninit_multibyte_string (nbytes
, nbytes
);
260 bcopy (XSTRING (directory
)->data
, XSTRING (fullname
)->data
,
264 XSTRING (fullname
)->data
[directory_nbytes
] = DIRECTORY_SEP
;
266 bcopy (XSTRING (name
)->data
,
267 XSTRING (fullname
)->data
+ directory_nbytes
+ needsep
,
270 nchars
= chars_in_text (XSTRING (fullname
)->data
, nbytes
);
272 /* Some bug somewhere. */
276 XSTRING (fullname
)->size
= nchars
;
277 if (nchars
== nbytes
)
278 SET_STRING_BYTES (XSTRING (fullname
), -1);
280 finalname
= fullname
;
287 /* Construct an expanded filename for the directory entry.
288 Use the decoded names for input to Ffile_attributes. */
289 Lisp_Object decoded_fullname
, fileattrs
;
290 struct gcpro gcpro1
, gcpro2
;
292 decoded_fullname
= fileattrs
= Qnil
;
293 GCPRO2 (decoded_fullname
, fileattrs
);
295 /* Both Fexpand_file_name and Ffile_attributes can GC. */
296 decoded_fullname
= Fexpand_file_name (name
, directory
);
297 fileattrs
= Ffile_attributes (decoded_fullname
);
299 list
= Fcons (Fcons (finalname
, fileattrs
), list
);
303 list
= Fcons (finalname
, list
);
312 retry_p
|= errno
== EINTR
;
317 /* Discard the unwind protect. */
318 specpdl_ptr
= specpdl
+ count
;
327 list
= Fsort (Fnreverse (list
),
328 attrs
? Qfile_attributes_lessp
: Qstring_lessp
);
330 RETURN_UNGCPRO (list
);
334 DEFUN ("directory-files", Fdirectory_files
, Sdirectory_files
, 1, 4, 0,
335 doc
: /* Return a list of names of files in DIRECTORY.
336 There are three optional arguments:
337 If FULL is non-nil, return absolute file names. Otherwise return names
338 that are relative to the specified directory.
339 If MATCH is non-nil, mention only file names that match the regexp MATCH.
340 If NOSORT is non-nil, the list is not sorted--its order is unpredictable.
341 NOSORT is useful if you plan to sort the result yourself. */)
342 (directory
, full
, match
, nosort
)
343 Lisp_Object directory
, full
, match
, nosort
;
347 /* If the file name has special constructs in it,
348 call the corresponding file handler. */
349 handler
= Ffind_file_name_handler (directory
, Qdirectory_files
);
355 args
[1] = Qdirectory_files
;
360 return Ffuncall (6, args
);
363 return directory_files_internal (directory
, full
, match
, nosort
, 0);
366 DEFUN ("directory-files-and-attributes", Fdirectory_files_and_attributes
,
367 Sdirectory_files_and_attributes
, 1, 4, 0,
368 doc
: /* Return a list of names of files and their attributes in DIRECTORY.
369 There are three optional arguments:
370 If FULL is non-nil, return absolute file names. Otherwise return names
371 that are relative to the specified directory.
372 If MATCH is non-nil, mention only file names that match the regexp MATCH.
373 If NOSORT is non-nil, the list is not sorted--its order is unpredictable.
374 NOSORT is useful if you plan to sort the result yourself. */)
375 (directory
, full
, match
, nosort
)
376 Lisp_Object directory
, full
, match
, nosort
;
380 /* If the file name has special constructs in it,
381 call the corresponding file handler. */
382 handler
= Ffind_file_name_handler (directory
, Qdirectory_files_and_attributes
);
388 args
[1] = Qdirectory_files_and_attributes
;
393 return Ffuncall (6, args
);
396 return directory_files_internal (directory
, full
, match
, nosort
, 1);
400 Lisp_Object
file_name_completion ();
402 DEFUN ("file-name-completion", Ffile_name_completion
, Sfile_name_completion
,
404 doc
: /* Complete file name FILE in directory DIRECTORY.
405 Returns the longest string
406 common to all file names in DIRECTORY that start with FILE.
407 If there is only one and FILE matches it exactly, returns t.
408 Returns nil if DIR contains no name starting with FILE.
410 This function ignores some of the possible completions as
411 determined by the variable `completion-ignored-extensions', which see. */)
413 Lisp_Object file
, directory
;
417 /* If the directory name has special constructs in it,
418 call the corresponding file handler. */
419 handler
= Ffind_file_name_handler (directory
, Qfile_name_completion
);
421 return call3 (handler
, Qfile_name_completion
, file
, directory
);
423 /* If the file name has special constructs in it,
424 call the corresponding file handler. */
425 handler
= Ffind_file_name_handler (file
, Qfile_name_completion
);
427 return call3 (handler
, Qfile_name_completion
, file
, directory
);
429 return file_name_completion (file
, directory
, 0, 0);
432 DEFUN ("file-name-all-completions", Ffile_name_all_completions
,
433 Sfile_name_all_completions
, 2, 2, 0,
434 doc
: /* Return a list of all completions of file name FILE in directory DIRECTORY.
435 These are all file names in directory DIRECTORY which begin with FILE. */)
437 Lisp_Object file
, directory
;
441 /* If the directory name has special constructs in it,
442 call the corresponding file handler. */
443 handler
= Ffind_file_name_handler (directory
, Qfile_name_all_completions
);
445 return call3 (handler
, Qfile_name_all_completions
, file
, directory
);
447 /* If the file name has special constructs in it,
448 call the corresponding file handler. */
449 handler
= Ffind_file_name_handler (file
, Qfile_name_all_completions
);
451 return call3 (handler
, Qfile_name_all_completions
, file
, directory
);
453 return file_name_completion (file
, directory
, 1, 0);
456 static int file_name_completion_stat ();
459 file_name_completion (file
, dirname
, all_flag
, ver_flag
)
460 Lisp_Object file
, dirname
;
461 int all_flag
, ver_flag
;
464 int bestmatchsize
= 0, skip
;
465 register int compare
, matchsize
;
466 unsigned char *p1
, *p2
;
468 Lisp_Object bestmatch
, tem
, elt
, name
;
469 Lisp_Object encoded_file
;
470 Lisp_Object encoded_dir
;
474 int count
= specpdl_ptr
- specpdl
;
475 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
, gcpro5
;
480 extern DIRENTRY
* readdirver ();
482 DIRENTRY
*((* readfunc
) ());
484 /* Filename completion on VMS ignores case, since VMS filesys does. */
485 specbind (Qcompletion_ignore_case
, Qt
);
489 readfunc
= readdirver
;
490 file
= Fupcase (file
);
495 #ifdef FILE_SYSTEM_CASE
496 file
= FILE_SYSTEM_CASE (file
);
499 encoded_file
= encoded_dir
= Qnil
;
500 GCPRO5 (file
, dirname
, bestmatch
, encoded_file
, encoded_dir
);
501 dirname
= Fexpand_file_name (dirname
, Qnil
);
503 /* Do completion on the encoded file name
504 because the other names in the directory are (we presume)
505 encoded likewise. We decode the completed string at the end. */
506 encoded_file
= ENCODE_FILE (file
);
508 encoded_dir
= ENCODE_FILE (dirname
);
510 /* With passcount = 0, ignore files that end in an ignored extension.
511 If nothing found then try again with passcount = 1, don't ignore them.
512 If looking for all completions, start with passcount = 1,
513 so always take even the ignored ones.
515 ** It would not actually be helpful to the user to ignore any possible
516 completions when making a list of them.** */
518 for (passcount
= !!all_flag
; NILP (bestmatch
) && passcount
< 2; passcount
++)
520 d
= opendir (XSTRING (Fdirectory_file_name (encoded_dir
))->data
);
522 report_file_error ("Opening directory", Fcons (dirname
, Qnil
));
524 /* Loop reading blocks */
525 /* (att3b compiler bug requires do a null comparison this way) */
532 dp
= (*readfunc
) (d
);
540 if (!NILP (Vquit_flag
) && NILP (Vinhibit_quit
))
542 if (! DIRENTRY_NONEMPTY (dp
)
543 || len
< XSTRING (encoded_file
)->size
544 || 0 <= scmp (dp
->d_name
, XSTRING (encoded_file
)->data
,
545 XSTRING (encoded_file
)->size
))
548 if (file_name_completion_stat (encoded_dir
, dp
, &st
) < 0)
551 directoryp
= ((st
.st_mode
& S_IFMT
) == S_IFDIR
);
555 #ifndef TRIVIAL_DIRECTORY_ENTRY
556 #define TRIVIAL_DIRECTORY_ENTRY(n) (!strcmp (n, ".") || !strcmp (n, ".."))
558 /* "." and ".." are never interesting as completions, but are
559 actually in the way in a directory contains only one file. */
560 if (!passcount
&& TRIVIAL_DIRECTORY_ENTRY (dp
->d_name
))
562 if (!passcount
&& len
> XSTRING (encoded_file
)->size
)
563 /* Ignore directories if they match an element of
564 completion-ignored-extensions which ends in a slash. */
565 for (tem
= Vcompletion_ignored_extensions
;
566 CONSP (tem
); tem
= XCDR (tem
))
573 elt_len
= XSTRING (elt
)->size
- 1; /* -1 for trailing / */
576 p1
= XSTRING (elt
)->data
;
577 if (p1
[elt_len
] != '/')
579 skip
= len
- elt_len
;
583 if (0 <= scmp (dp
->d_name
+ skip
, p1
, elt_len
))
590 /* Compare extensions-to-be-ignored against end of this file name */
591 /* if name is not an exact match against specified string */
592 if (!passcount
&& len
> XSTRING (encoded_file
)->size
)
593 /* and exit this for loop if a match is found */
594 for (tem
= Vcompletion_ignored_extensions
;
595 CONSP (tem
); tem
= XCDR (tem
))
598 if (!STRINGP (elt
)) continue;
599 skip
= len
- XSTRING (elt
)->size
;
600 if (skip
< 0) continue;
602 if (0 <= scmp (dp
->d_name
+ skip
,
604 XSTRING (elt
)->size
))
610 /* If an ignored-extensions match was found,
611 don't process this name as a completion. */
612 if (!passcount
&& CONSP (tem
))
619 XSETFASTINT (zero
, 0);
621 /* Ignore this element if it fails to match all the regexps. */
622 for (regexps
= Vcompletion_regexp_list
; CONSP (regexps
);
623 regexps
= XCDR (regexps
))
625 tem
= Fstring_match (XCAR (regexps
),
626 make_string (dp
->d_name
, len
), zero
);
634 /* Update computation of how much all possible completions match */
638 if (all_flag
|| NILP (bestmatch
))
640 /* This is a possible completion */
643 /* This completion is a directory; make it end with '/' */
644 name
= Ffile_name_as_directory (make_string (dp
->d_name
, len
));
647 name
= make_string (dp
->d_name
, len
);
650 name
= DECODE_FILE (name
);
651 bestmatch
= Fcons (name
, bestmatch
);
656 bestmatchsize
= XSTRING (name
)->size
;
661 compare
= min (bestmatchsize
, len
);
662 p1
= XSTRING (bestmatch
)->data
;
663 p2
= (unsigned char *) dp
->d_name
;
664 matchsize
= scmp(p1
, p2
, compare
);
667 if (completion_ignore_case
)
669 /* If this is an exact match except for case,
670 use it as the best match rather than one that is not
671 an exact match. This way, we get the case pattern
672 of the actual match. */
673 /* This tests that the current file is an exact match
674 but BESTMATCH is not (it is too long). */
675 if ((matchsize
== len
676 && matchsize
+ !!directoryp
677 < XSTRING (bestmatch
)->size
)
679 /* If there is no exact match ignoring case,
680 prefer a match that does not change the case
682 /* If there is more than one exact match aside from
683 case, and one of them is exact including case,
685 /* This == checks that, of current file and BESTMATCH,
686 either both or neither are exact. */
689 (matchsize
+ !!directoryp
690 == XSTRING (bestmatch
)->size
))
691 && !bcmp (p2
, XSTRING (encoded_file
)->data
, XSTRING (encoded_file
)->size
)
692 && bcmp (p1
, XSTRING (encoded_file
)->data
, XSTRING (encoded_file
)->size
)))
694 bestmatch
= make_string (dp
->d_name
, len
);
696 bestmatch
= Ffile_name_as_directory (bestmatch
);
700 /* If this dirname all matches, see if implicit following
703 && compare
== matchsize
704 && bestmatchsize
> matchsize
705 && IS_ANY_SEP (p1
[matchsize
]))
707 bestmatchsize
= matchsize
;
714 bestmatch
= unbind_to (count
, bestmatch
);
716 if (all_flag
|| NILP (bestmatch
))
718 if (STRINGP (bestmatch
))
719 bestmatch
= DECODE_FILE (bestmatch
);
722 if (matchcount
== 1 && bestmatchsize
== XSTRING (file
)->size
)
724 bestmatch
= Fsubstring (bestmatch
, make_number (0),
725 make_number (bestmatchsize
));
726 /* Now that we got the right initial segment of BESTMATCH,
727 decode it from the coding system in use. */
728 bestmatch
= DECODE_FILE (bestmatch
);
734 return Fsignal (Qquit
, Qnil
);
738 file_name_completion_stat (dirname
, dp
, st_addr
)
741 struct stat
*st_addr
;
743 int len
= NAMLEN (dp
);
744 int pos
= XSTRING (dirname
)->size
;
746 char *fullname
= (char *) alloca (len
+ pos
+ 2);
750 /* Some fields of struct stat are *very* expensive to compute on MS-DOS,
751 but aren't required here. Avoid computing the following fields:
752 st_inode, st_size and st_nlink for directories, and the execute bits
753 in st_mode for non-directory files with non-standard extensions. */
755 unsigned short save_djstat_flags
= _djstat_flags
;
757 _djstat_flags
= _STAT_INODE
| _STAT_EXEC_MAGIC
| _STAT_DIRSIZE
;
758 #endif /* __DJGPP__ > 1 */
761 bcopy (XSTRING (dirname
)->data
, fullname
, pos
);
763 if (!IS_DIRECTORY_SEP (fullname
[pos
- 1]))
764 fullname
[pos
++] = DIRECTORY_SEP
;
767 bcopy (dp
->d_name
, fullname
+ pos
, len
);
768 fullname
[pos
+ len
] = 0;
771 /* We want to return success if a link points to a nonexistent file,
772 but we want to return the status for what the link points to,
773 in case it is a directory. */
774 value
= lstat (fullname
, st_addr
);
775 stat (fullname
, st_addr
);
778 value
= stat (fullname
, st_addr
);
781 _djstat_flags
= save_djstat_flags
;
782 #endif /* __DJGPP__ > 1 */
790 DEFUN ("file-name-all-versions", Ffile_name_all_versions
,
791 Sfile_name_all_versions
, 2, 2, 0,
792 doc
: /* Return a list of all versions of file name FILE in directory DIRECTORY. */)
794 Lisp_Object file
, directory
;
796 return file_name_completion (file
, directory
, 1, 1);
799 DEFUN ("file-version-limit", Ffile_version_limit
, Sfile_version_limit
, 1, 1, 0,
800 doc
: /* Return the maximum number of versions allowed for FILE.
801 Returns nil if the file cannot be opened or if there is no version limit. */)
803 Lisp_Object filename
;
808 struct XABFHC xabfhc
;
811 filename
= Fexpand_file_name (filename
, Qnil
);
813 xabfhc
= cc$rms_xabfhc
;
814 fab
.fab$l_fna
= XSTRING (filename
)->data
;
815 fab
.fab$b_fns
= strlen (fab
.fab$l_fna
);
816 fab
.fab$l_xab
= (char *) &xabfhc
;
817 status
= sys$
open (&fab
, 0, 0);
818 if (status
!= RMS$_NORMAL
) /* Probably non-existent file */
820 sys$
close (&fab
, 0, 0);
821 if (xabfhc
.xab$w_verlimit
== 32767)
822 return Qnil
; /* No version limit */
824 return make_number (xabfhc
.xab$w_verlimit
);
833 return Fcons (make_number (time
>> 16),
834 Fcons (make_number (time
& 0177777), Qnil
));
837 DEFUN ("file-attributes", Ffile_attributes
, Sfile_attributes
, 1, 1, 0,
838 doc
: /* Return a list of attributes of file FILENAME.
839 Value is nil if specified file cannot be opened.
840 Otherwise, list elements are:
841 0. t for directory, string (name linked to) for symbolic link, or nil.
842 1. Number of links to file.
845 4. Last access time, as a list of two integers.
846 First integer has high-order 16 bits of time, second has low 16 bits.
847 5. Last modification time, likewise.
848 6. Last status change time, likewise.
850 This is a floating point number if the size is too large for an integer.
851 8. File modes, as a string of ten letters or dashes as in ls -l.
852 9. t iff file's gid would change if file were deleted and recreated.
853 10. inode number. If inode number is larger than the Emacs integer,
854 this is a cons cell containing two integers: first the high part,
855 then the low 16 bits.
856 11. Device number. If it is larger than the Emacs integer, this is
857 a cons cell, similar to the inode number.
859 If file does not exist, returns nil. */)
861 Lisp_Object filename
;
863 Lisp_Object values
[12];
866 #if defined (BSD4_2) || defined (BSD4_3)
873 filename
= Fexpand_file_name (filename
, Qnil
);
875 /* If the file name has special constructs in it,
876 call the corresponding file handler. */
877 handler
= Ffind_file_name_handler (filename
, Qfile_attributes
);
879 return call2 (handler
, Qfile_attributes
, filename
);
881 encoded
= ENCODE_FILE (filename
);
883 if (lstat (XSTRING (encoded
)->data
, &s
) < 0)
886 switch (s
.st_mode
& S_IFMT
)
889 values
[0] = Qnil
; break;
891 values
[0] = Qt
; break;
894 values
[0] = Ffile_symlink_p (filename
); break;
897 values
[1] = make_number (s
.st_nlink
);
898 values
[2] = make_number (s
.st_uid
);
899 values
[3] = make_number (s
.st_gid
);
900 values
[4] = make_time (s
.st_atime
);
901 values
[5] = make_time (s
.st_mtime
);
902 values
[6] = make_time (s
.st_ctime
);
903 values
[7] = make_number (s
.st_size
);
904 /* If the size is out of range for an integer, return a float. */
905 if (XINT (values
[7]) != s
.st_size
)
906 values
[7] = make_float ((double)s
.st_size
);
907 filemodestring (&s
, modes
);
908 values
[8] = make_string (modes
, 10);
909 #if defined (BSD4_2) || defined (BSD4_3) /* file gid will be dir gid */
910 dirname
= Ffile_name_directory (filename
);
911 if (! NILP (dirname
))
912 encoded
= ENCODE_FILE (dirname
);
913 if (! NILP (dirname
) && stat (XSTRING (encoded
)->data
, &sdir
) == 0)
914 values
[9] = (sdir
.st_gid
!= s
.st_gid
) ? Qt
: Qnil
;
915 else /* if we can't tell, assume worst */
917 #else /* file gid will be egid */
918 values
[9] = (s
.st_gid
!= getegid ()) ? Qt
: Qnil
;
919 #endif /* BSD4_2 (or BSD4_3) */
920 /* Cast -1 to avoid warning if int is not as wide as VALBITS. */
921 if (FIXNUM_OVERFLOW_P (s
.st_ino
))
922 /* To allow inode numbers larger than VALBITS, separate the bottom
924 values
[10] = Fcons (make_number (s
.st_ino
>> 16),
925 make_number (s
.st_ino
& 0xffff));
927 /* But keep the most common cases as integers. */
928 values
[10] = make_number (s
.st_ino
);
930 /* Likewise for device. */
931 if (FIXNUM_OVERFLOW_P (s
.st_dev
))
932 values
[11] = Fcons (make_number (s
.st_dev
>> 16),
933 make_number (s
.st_dev
& 0xffff));
935 values
[11] = make_number (s
.st_dev
);
937 return Flist (sizeof(values
) / sizeof(values
[0]), values
);
940 DEFUN ("file-attributes-lessp", Ffile_attributes_lessp
, Sfile_attributes_lessp
, 2, 2, 0,
941 doc
: /* Return t if first arg file attributes list is less than second.
942 Comparison is in lexicographic order and case is significant. */)
946 return Fstring_lessp (Fcar (f1
), Fcar (f2
));
952 Qdirectory_files
= intern ("directory-files");
953 Qdirectory_files_and_attributes
= intern ("directory-files-and-attributes");
954 Qfile_name_completion
= intern ("file-name-completion");
955 Qfile_name_all_completions
= intern ("file-name-all-completions");
956 Qfile_attributes
= intern ("file-attributes");
957 Qfile_attributes_lessp
= intern ("file-attributes-lessp");
959 staticpro (&Qdirectory_files
);
960 staticpro (&Qdirectory_files_and_attributes
);
961 staticpro (&Qfile_name_completion
);
962 staticpro (&Qfile_name_all_completions
);
963 staticpro (&Qfile_attributes
);
964 staticpro (&Qfile_attributes_lessp
);
966 defsubr (&Sdirectory_files
);
967 defsubr (&Sdirectory_files_and_attributes
);
968 defsubr (&Sfile_name_completion
);
970 defsubr (&Sfile_name_all_versions
);
971 defsubr (&Sfile_version_limit
);
973 defsubr (&Sfile_name_all_completions
);
974 defsubr (&Sfile_attributes
);
975 defsubr (&Sfile_attributes_lessp
);
978 Qcompletion_ignore_case
= intern ("completion-ignore-case");
979 staticpro (&Qcompletion_ignore_case
);
982 DEFVAR_LISP ("completion-ignored-extensions", &Vcompletion_ignored_extensions
,
983 doc
: /* *Completion ignores filenames ending in any string in this list.
984 Directories are ignored if they match any string in this list which
986 This variable does not affect lists of possible completions,
987 but does affect the commands that actually do completions. */);
988 Vcompletion_ignored_extensions
= Qnil
;