Commit | Line | Data |
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14d55bce | 1 | /* Lisp functions for making directory listings. |
0b5538bd | 2 | Copyright (C) 1985, 1986, 1993, 1994, 1999, 2000, 2001, 2002, 2003, |
aaef169d | 3 | 2004, 2005, 2006 Free Software Foundation, Inc. |
14d55bce RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
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 | |
7c938215 | 9 | the Free Software Foundation; either version 2, or (at your option) |
14d55bce RS |
10 | any later version. |
11 | ||
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. | |
16 | ||
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 | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
14d55bce RS |
21 | |
22 | ||
3964b9a7 RS |
23 | #include <config.h> |
24 | ||
14d55bce RS |
25 | #include <stdio.h> |
26 | #include <sys/types.h> | |
27 | #include <sys/stat.h> | |
28 | ||
5b9c0a1d | 29 | #ifdef HAVE_PWD_H |
0e6195ed | 30 | #include <pwd.h> |
5b9c0a1d TTN |
31 | #endif |
32 | #ifndef VMS | |
0e6195ed LH |
33 | #include <grp.h> |
34 | #endif | |
35 | ||
7cc9f69f | 36 | #include <errno.h> |
68c45bf0 | 37 | |
3ed991aa RS |
38 | #ifdef VMS |
39 | #include <string.h> | |
40 | #include <rms.h> | |
41 | #include <rmsdef.h> | |
42 | #endif | |
43 | ||
dfcf069d AS |
44 | #ifdef HAVE_UNISTD_H |
45 | #include <unistd.h> | |
46 | #endif | |
47 | ||
d6717cdb JB |
48 | /* The d_nameln member of a struct dirent includes the '\0' character |
49 | on some systems, but not on others. What's worse, you can't tell | |
50 | at compile-time which one it will be, since it really depends on | |
51 | the sort of system providing the filesystem you're reading from, | |
52 | not the system you are running on. Paul Eggert | |
53 | <eggert@bi.twinsun.com> says this occurs when Emacs is running on a | |
54 | SunOS 4.1.2 host, reading a directory that is remote-mounted from a | |
55 | Solaris 2.1 host and is in a native Solaris 2.1 filesystem. | |
56 | ||
57 | Since applying strlen to the name always works, we'll just do that. */ | |
58 | #define NAMLEN(p) strlen (p->d_name) | |
59 | ||
14d55bce RS |
60 | #ifdef SYSV_SYSTEM_DIR |
61 | ||
62 | #include <dirent.h> | |
63 | #define DIRENTRY struct dirent | |
14d55bce | 64 | |
128ecc89 | 65 | #else /* not SYSV_SYSTEM_DIR */ |
14d55bce RS |
66 | |
67 | #ifdef NONSYSTEM_DIR_LIBRARY | |
68 | #include "ndir.h" | |
69 | #else /* not NONSYSTEM_DIR_LIBRARY */ | |
128ecc89 RS |
70 | #ifdef MSDOS |
71 | #include <dirent.h> | |
72 | #else | |
14d55bce | 73 | #include <sys/dir.h> |
128ecc89 | 74 | #endif |
14d55bce RS |
75 | #endif /* not NONSYSTEM_DIR_LIBRARY */ |
76 | ||
851cab13 DL |
77 | #include <sys/stat.h> |
78 | ||
128ecc89 | 79 | #ifndef MSDOS |
14d55bce | 80 | #define DIRENTRY struct direct |
14d55bce RS |
81 | |
82 | extern DIR *opendir (); | |
83 | extern struct direct *readdir (); | |
84 | ||
128ecc89 RS |
85 | #endif /* not MSDOS */ |
86 | #endif /* not SYSV_SYSTEM_DIR */ | |
87 | ||
8f7f8c65 EZ |
88 | /* Some versions of Cygwin don't have d_ino in `struct dirent'. */ |
89 | #if defined(MSDOS) || defined(__CYGWIN__) | |
128ecc89 RS |
90 | #define DIRENTRY_NONEMPTY(p) ((p)->d_name[0] != 0) |
91 | #else | |
92 | #define DIRENTRY_NONEMPTY(p) ((p)->d_ino) | |
14d55bce RS |
93 | #endif |
94 | ||
14d55bce | 95 | #include "lisp.h" |
fa8459a3 | 96 | #include "systime.h" |
14d55bce RS |
97 | #include "buffer.h" |
98 | #include "commands.h" | |
bd33479f KH |
99 | #include "charset.h" |
100 | #include "coding.h" | |
14d55bce | 101 | #include "regex.h" |
8c8a7c58 | 102 | #include "blockinput.h" |
14d55bce | 103 | |
e50c66d3 KH |
104 | /* Returns a search buffer, with a fastmap allocated and ready to go. */ |
105 | extern struct re_pattern_buffer *compile_pattern (); | |
c7e466e1 | 106 | |
851cab13 DL |
107 | /* From filemode.c. Can't go in Lisp.h because of `stat'. */ |
108 | extern void filemodestring P_ ((struct stat *, char *)); | |
109 | ||
14d55bce RS |
110 | /* if system does not have symbolic links, it does not have lstat. |
111 | In that case, use ordinary stat instead. */ | |
112 | ||
113 | #ifndef S_IFLNK | |
114 | #define lstat stat | |
115 | #endif | |
116 | ||
97e98a56 | 117 | extern int completion_ignore_case; |
f676868d | 118 | extern Lisp_Object Vcompletion_regexp_list; |
ccbcf979 | 119 | |
14d55bce | 120 | Lisp_Object Vcompletion_ignored_extensions; |
14d55bce | 121 | Lisp_Object Qcompletion_ignore_case; |
32f4334d | 122 | Lisp_Object Qdirectory_files; |
4424b255 | 123 | Lisp_Object Qdirectory_files_and_attributes; |
32f4334d RS |
124 | Lisp_Object Qfile_name_completion; |
125 | Lisp_Object Qfile_name_all_completions; | |
434e6714 | 126 | Lisp_Object Qfile_attributes; |
4424b255 | 127 | Lisp_Object Qfile_attributes_lessp; |
b3f04ced RS |
128 | |
129 | static int scmp P_ ((unsigned char *, unsigned char *, int)); | |
14d55bce | 130 | \f |
2488aba5 AI |
131 | |
132 | Lisp_Object | |
133 | directory_files_internal_unwind (dh) | |
134 | Lisp_Object dh; | |
135 | { | |
9d291bdf | 136 | DIR *d = (DIR *) XSAVE_VALUE (dh)->pointer; |
d15b573e | 137 | BLOCK_INPUT; |
2488aba5 | 138 | closedir (d); |
d15b573e | 139 | UNBLOCK_INPUT; |
2488aba5 AI |
140 | return Qnil; |
141 | } | |
142 | ||
177c0ea7 | 143 | /* Function shared by Fdirectory_files and Fdirectory_files_and_attributes. |
4424b255 | 144 | When ATTRS is zero, return a list of directory filenames; when |
0e6195ed LH |
145 | non-zero, return a list of directory filenames and their attributes. |
146 | In the latter case, ID_FORMAT is passed to Ffile_attributes. */ | |
f69f9da1 | 147 | |
4424b255 | 148 | Lisp_Object |
0e6195ed | 149 | directory_files_internal (directory, full, match, nosort, attrs, id_format) |
23bd240f | 150 | Lisp_Object directory, full, match, nosort; |
4424b255 | 151 | int attrs; |
0e6195ed | 152 | Lisp_Object id_format; |
14d55bce RS |
153 | { |
154 | DIR *d; | |
388ac098 GM |
155 | int directory_nbytes; |
156 | Lisp_Object list, dirfilename, encoded_directory; | |
6bbd7a29 | 157 | struct re_pattern_buffer *bufp = NULL; |
96d64004 | 158 | int needsep = 0; |
aed13378 | 159 | int count = SPECPDL_INDEX (); |
388ac098 | 160 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
8e42f043 | 161 | DIRENTRY *dp; |
32f4334d | 162 | |
96d64004 | 163 | /* Because of file name handlers, these functions might call |
6155fae1 | 164 | Ffuncall, and cause a GC. */ |
388ac098 GM |
165 | list = encoded_directory = dirfilename = Qnil; |
166 | GCPRO5 (match, directory, list, dirfilename, encoded_directory); | |
96d64004 | 167 | dirfilename = Fdirectory_file_name (directory); |
6155fae1 | 168 | |
265a9e55 | 169 | if (!NILP (match)) |
14d55bce | 170 | { |
b7826503 | 171 | CHECK_STRING (match); |
ebb9e16f JB |
172 | |
173 | /* MATCH might be a flawed regular expression. Rather than | |
8e6208c5 | 174 | catching and signaling our own errors, we just call |
ebb9e16f | 175 | compile_pattern to do the work for us. */ |
c872c6b2 RS |
176 | /* Pass 1 for the MULTIBYTE arg |
177 | because we do make multibyte strings if the contents warrant. */ | |
14d55bce | 178 | #ifdef VMS |
e50c66d3 | 179 | bufp = compile_pattern (match, 0, |
3e937712 | 180 | buffer_defaults.downcase_table, 0, 1); |
1a9fbabe EZ |
181 | #else /* !VMS */ |
182 | # ifdef WINDOWSNT | |
183 | /* Windows users want case-insensitive wildcards. */ | |
184 | bufp = compile_pattern (match, 0, | |
185 | buffer_defaults.case_canon_table, 0, 1); | |
186 | # else /* !WINDOWSNT */ | |
3e937712 | 187 | bufp = compile_pattern (match, 0, Qnil, 0, 1); |
1a9fbabe EZ |
188 | # endif /* !WINDOWSNT */ |
189 | #endif /* !VMS */ | |
14d55bce RS |
190 | } |
191 | ||
b3edfc9b | 192 | /* Note: ENCODE_FILE and DECODE_FILE can GC because they can run |
388ac098 GM |
193 | run_pre_post_conversion_on_str which calls Lisp directly and |
194 | indirectly. */ | |
24c2a54f | 195 | dirfilename = ENCODE_FILE (dirfilename); |
24c2a54f RS |
196 | encoded_directory = ENCODE_FILE (directory); |
197 | ||
e50c66d3 | 198 | /* Now *bufp is the compiled form of MATCH; don't call anything |
6155fae1 JB |
199 | which might compile a new regexp until we're done with the loop! */ |
200 | ||
d15b573e | 201 | BLOCK_INPUT; |
d5db4077 | 202 | d = opendir (SDATA (dirfilename)); |
d15b573e | 203 | UNBLOCK_INPUT; |
388ac098 | 204 | if (d == NULL) |
23bd240f | 205 | report_file_error ("Opening directory", Fcons (directory, Qnil)); |
14d55bce | 206 | |
2488aba5 AI |
207 | /* Unfortunately, we can now invoke expand-file-name and |
208 | file-attributes on filenames, both of which can throw, so we must | |
209 | do a proper unwind-protect. */ | |
210 | record_unwind_protect (directory_files_internal_unwind, | |
9d291bdf | 211 | make_save_value (d, 0)); |
2488aba5 | 212 | |
d5db4077 | 213 | directory_nbytes = SBYTES (directory); |
c81a9bdc | 214 | re_match_object = Qt; |
14d55bce | 215 | |
96d64004 AS |
216 | /* Decide whether we need to add a directory separator. */ |
217 | #ifndef VMS | |
388ac098 | 218 | if (directory_nbytes == 0 |
d5db4077 | 219 | || !IS_ANY_SEP (SREF (directory, directory_nbytes - 1))) |
96d64004 | 220 | needsep = 1; |
e540cbed | 221 | #endif /* not VMS */ |
96d64004 | 222 | |
8e42f043 | 223 | /* Loop reading blocks until EOF or error. */ |
f69f9da1 | 224 | for (;;) |
14d55bce | 225 | { |
f69f9da1 GM |
226 | errno = 0; |
227 | dp = readdir (d); | |
228 | ||
9d291bdf | 229 | if (dp == NULL && (0 |
f69f9da1 | 230 | #ifdef EAGAIN |
9d291bdf SM |
231 | || errno == EAGAIN |
232 | #endif | |
233 | #ifdef EINTR | |
234 | || errno == EINTR | |
f69f9da1 | 235 | #endif |
9d291bdf SM |
236 | )) |
237 | { QUIT; continue; } | |
177c0ea7 | 238 | |
f69f9da1 GM |
239 | if (dp == NULL) |
240 | break; | |
241 | ||
128ecc89 | 242 | if (DIRENTRY_NONEMPTY (dp)) |
14d55bce | 243 | { |
e23f810c | 244 | int len; |
2488aba5 | 245 | int wanted = 0; |
388ac098 GM |
246 | Lisp_Object name, finalname; |
247 | struct gcpro gcpro1, gcpro2; | |
e23f810c KH |
248 | |
249 | len = NAMLEN (dp); | |
9ad4f3e5 | 250 | name = finalname = make_unibyte_string (dp->d_name, len); |
388ac098 | 251 | GCPRO2 (finalname, name); |
177c0ea7 | 252 | |
388ac098 GM |
253 | /* Note: ENCODE_FILE can GC; it should protect its argument, |
254 | though. */ | |
255 | name = DECODE_FILE (name); | |
d5db4077 | 256 | len = SBYTES (name); |
e23f810c | 257 | |
2488aba5 AI |
258 | /* Now that we have unwind_protect in place, we might as well |
259 | allow matching to be interrupted. */ | |
260 | immediate_quit = 1; | |
261 | QUIT; | |
262 | ||
265a9e55 | 263 | if (NILP (match) |
d5db4077 | 264 | || (0 <= re_search (bufp, SDATA (name), len, 0, len, 0))) |
388ac098 | 265 | wanted = 1; |
2488aba5 AI |
266 | |
267 | immediate_quit = 0; | |
268 | ||
269 | if (wanted) | |
14d55bce | 270 | { |
265a9e55 | 271 | if (!NILP (full)) |
14d55bce | 272 | { |
e23f810c | 273 | Lisp_Object fullname; |
388ac098 GM |
274 | int nbytes = len + directory_nbytes + needsep; |
275 | int nchars; | |
5617588f | 276 | |
388ac098 | 277 | fullname = make_uninit_multibyte_string (nbytes, nbytes); |
d5db4077 | 278 | bcopy (SDATA (directory), SDATA (fullname), |
388ac098 | 279 | directory_nbytes); |
177c0ea7 | 280 | |
5617588f | 281 | if (needsep) |
d549c5db | 282 | SSET (fullname, directory_nbytes, DIRECTORY_SEP); |
177c0ea7 | 283 | |
d5db4077 KR |
284 | bcopy (SDATA (name), |
285 | SDATA (fullname) + directory_nbytes + needsep, | |
388ac098 | 286 | len); |
177c0ea7 | 287 | |
d5db4077 | 288 | nchars = chars_in_text (SDATA (fullname), nbytes); |
388ac098 GM |
289 | |
290 | /* Some bug somewhere. */ | |
291 | if (nchars > nbytes) | |
292 | abort (); | |
177c0ea7 | 293 | |
437fcd47 | 294 | STRING_SET_CHARS (fullname, nchars); |
388ac098 | 295 | if (nchars == nbytes) |
d5db4077 | 296 | STRING_SET_UNIBYTE (fullname); |
177c0ea7 | 297 | |
4424b255 GV |
298 | finalname = fullname; |
299 | } | |
aab9c564 KH |
300 | else |
301 | finalname = name; | |
4424b255 GV |
302 | |
303 | if (attrs) | |
304 | { | |
305 | /* Construct an expanded filename for the directory entry. | |
306 | Use the decoded names for input to Ffile_attributes. */ | |
388ac098 GM |
307 | Lisp_Object decoded_fullname, fileattrs; |
308 | struct gcpro gcpro1, gcpro2; | |
309 | ||
310 | decoded_fullname = fileattrs = Qnil; | |
311 | GCPRO2 (decoded_fullname, fileattrs); | |
4424b255 | 312 | |
388ac098 | 313 | /* Both Fexpand_file_name and Ffile_attributes can GC. */ |
4424b255 | 314 | decoded_fullname = Fexpand_file_name (name, directory); |
0e6195ed | 315 | fileattrs = Ffile_attributes (decoded_fullname, id_format); |
4424b255 GV |
316 | |
317 | list = Fcons (Fcons (finalname, fileattrs), list); | |
388ac098 | 318 | UNGCPRO; |
4424b255 GV |
319 | } |
320 | else | |
388ac098 | 321 | list = Fcons (finalname, list); |
14d55bce | 322 | } |
388ac098 GM |
323 | |
324 | UNGCPRO; | |
14d55bce RS |
325 | } |
326 | } | |
2488aba5 | 327 | |
d15b573e | 328 | BLOCK_INPUT; |
14d55bce | 329 | closedir (d); |
d15b573e | 330 | UNBLOCK_INPUT; |
2488aba5 AI |
331 | |
332 | /* Discard the unwind protect. */ | |
333 | specpdl_ptr = specpdl + count; | |
334 | ||
388ac098 GM |
335 | if (NILP (nosort)) |
336 | list = Fsort (Fnreverse (list), | |
337 | attrs ? Qfile_attributes_lessp : Qstring_lessp); | |
177c0ea7 | 338 | |
388ac098 | 339 | RETURN_UNGCPRO (list); |
14d55bce | 340 | } |
4424b255 GV |
341 | |
342 | ||
343 | DEFUN ("directory-files", Fdirectory_files, Sdirectory_files, 1, 4, 0, | |
335c5470 PJ |
344 | doc: /* Return a list of names of files in DIRECTORY. |
345 | There are three optional arguments: | |
346 | If FULL is non-nil, return absolute file names. Otherwise return names | |
347 | that are relative to the specified directory. | |
348 | If MATCH is non-nil, mention only file names that match the regexp MATCH. | |
349 | If NOSORT is non-nil, the list is not sorted--its order is unpredictable. | |
350 | NOSORT is useful if you plan to sort the result yourself. */) | |
351 | (directory, full, match, nosort) | |
4424b255 GV |
352 | Lisp_Object directory, full, match, nosort; |
353 | { | |
354 | Lisp_Object handler; | |
4ece81a6 | 355 | directory = Fexpand_file_name (directory, Qnil); |
4424b255 GV |
356 | |
357 | /* If the file name has special constructs in it, | |
358 | call the corresponding file handler. */ | |
359 | handler = Ffind_file_name_handler (directory, Qdirectory_files); | |
360 | if (!NILP (handler)) | |
b9148500 LH |
361 | return call5 (handler, Qdirectory_files, directory, |
362 | full, match, nosort); | |
4424b255 | 363 | |
0e6195ed | 364 | return directory_files_internal (directory, full, match, nosort, 0, Qnil); |
4424b255 GV |
365 | } |
366 | ||
335c5470 | 367 | DEFUN ("directory-files-and-attributes", Fdirectory_files_and_attributes, |
0e6195ed | 368 | Sdirectory_files_and_attributes, 1, 5, 0, |
335c5470 | 369 | doc: /* Return a list of names of files and their attributes in DIRECTORY. |
0e6195ed | 370 | There are four optional arguments: |
335c5470 PJ |
371 | If FULL is non-nil, return absolute file names. Otherwise return names |
372 | that are relative to the specified directory. | |
373 | If MATCH is non-nil, mention only file names that match the regexp MATCH. | |
374 | If NOSORT is non-nil, the list is not sorted--its order is unpredictable. | |
0e6195ed LH |
375 | NOSORT is useful if you plan to sort the result yourself. |
376 | ID-FORMAT specifies the preferred format of attributes uid and gid, see | |
377 | `file-attributes' for further documentation. */) | |
378 | (directory, full, match, nosort, id_format) | |
379 | Lisp_Object directory, full, match, nosort, id_format; | |
4424b255 GV |
380 | { |
381 | Lisp_Object handler; | |
4ece81a6 | 382 | directory = Fexpand_file_name (directory, Qnil); |
4424b255 GV |
383 | |
384 | /* If the file name has special constructs in it, | |
385 | call the corresponding file handler. */ | |
386 | handler = Ffind_file_name_handler (directory, Qdirectory_files_and_attributes); | |
387 | if (!NILP (handler)) | |
b9148500 LH |
388 | return call6 (handler, Qdirectory_files_and_attributes, |
389 | directory, full, match, nosort, id_format); | |
4424b255 | 390 | |
0e6195ed | 391 | return directory_files_internal (directory, full, match, nosort, 1, id_format); |
4424b255 GV |
392 | } |
393 | ||
14d55bce RS |
394 | \f |
395 | Lisp_Object file_name_completion (); | |
396 | ||
397 | DEFUN ("file-name-completion", Ffile_name_completion, Sfile_name_completion, | |
335c5470 PJ |
398 | 2, 2, 0, |
399 | doc: /* Complete file name FILE in directory DIRECTORY. | |
400 | Returns the longest string | |
401 | common to all file names in DIRECTORY that start with FILE. | |
402 | If there is only one and FILE matches it exactly, returns t. | |
2f60660a | 403 | Returns nil if DIRECTORY contains no name starting with FILE. |
335c5470 PJ |
404 | |
405 | This function ignores some of the possible completions as | |
406 | determined by the variable `completion-ignored-extensions', which see. */) | |
407 | (file, directory) | |
23bd240f | 408 | Lisp_Object file, directory; |
14d55bce | 409 | { |
32f4334d | 410 | Lisp_Object handler; |
32f4334d | 411 | |
8436e231 | 412 | /* If the directory name has special constructs in it, |
32f4334d | 413 | call the corresponding file handler. */ |
23bd240f | 414 | handler = Ffind_file_name_handler (directory, Qfile_name_completion); |
32f4334d | 415 | if (!NILP (handler)) |
23bd240f | 416 | return call3 (handler, Qfile_name_completion, file, directory); |
32f4334d | 417 | |
8436e231 RS |
418 | /* If the file name has special constructs in it, |
419 | call the corresponding file handler. */ | |
420 | handler = Ffind_file_name_handler (file, Qfile_name_completion); | |
421 | if (!NILP (handler)) | |
23bd240f | 422 | return call3 (handler, Qfile_name_completion, file, directory); |
8436e231 | 423 | |
23bd240f | 424 | return file_name_completion (file, directory, 0, 0); |
14d55bce RS |
425 | } |
426 | ||
427 | DEFUN ("file-name-all-completions", Ffile_name_all_completions, | |
335c5470 PJ |
428 | Sfile_name_all_completions, 2, 2, 0, |
429 | doc: /* Return a list of all completions of file name FILE in directory DIRECTORY. | |
430 | These are all file names in directory DIRECTORY which begin with FILE. */) | |
431 | (file, directory) | |
23bd240f | 432 | Lisp_Object file, directory; |
14d55bce | 433 | { |
32f4334d RS |
434 | Lisp_Object handler; |
435 | ||
8436e231 | 436 | /* If the directory name has special constructs in it, |
32f4334d | 437 | call the corresponding file handler. */ |
23bd240f | 438 | handler = Ffind_file_name_handler (directory, Qfile_name_all_completions); |
32f4334d | 439 | if (!NILP (handler)) |
23bd240f | 440 | return call3 (handler, Qfile_name_all_completions, file, directory); |
32f4334d | 441 | |
8436e231 RS |
442 | /* If the file name has special constructs in it, |
443 | call the corresponding file handler. */ | |
444 | handler = Ffind_file_name_handler (file, Qfile_name_all_completions); | |
445 | if (!NILP (handler)) | |
23bd240f | 446 | return call3 (handler, Qfile_name_all_completions, file, directory); |
8436e231 | 447 | |
23bd240f | 448 | return file_name_completion (file, directory, 1, 0); |
14d55bce RS |
449 | } |
450 | ||
dfcf069d AS |
451 | static int file_name_completion_stat (); |
452 | ||
14d55bce RS |
453 | Lisp_Object |
454 | file_name_completion (file, dirname, all_flag, ver_flag) | |
455 | Lisp_Object file, dirname; | |
456 | int all_flag, ver_flag; | |
457 | { | |
458 | DIR *d; | |
6bbd7a29 | 459 | int bestmatchsize = 0, skip; |
14d55bce RS |
460 | register int compare, matchsize; |
461 | unsigned char *p1, *p2; | |
462 | int matchcount = 0; | |
463 | Lisp_Object bestmatch, tem, elt, name; | |
24c2a54f RS |
464 | Lisp_Object encoded_file; |
465 | Lisp_Object encoded_dir; | |
14d55bce RS |
466 | struct stat st; |
467 | int directoryp; | |
468 | int passcount; | |
aed13378 | 469 | int count = SPECPDL_INDEX (); |
24c2a54f | 470 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
3fcc88cc | 471 | |
6bbd7a29 GM |
472 | elt = Qnil; |
473 | ||
14d55bce RS |
474 | #ifdef VMS |
475 | extern DIRENTRY * readdirver (); | |
476 | ||
477 | DIRENTRY *((* readfunc) ()); | |
478 | ||
479 | /* Filename completion on VMS ignores case, since VMS filesys does. */ | |
480 | specbind (Qcompletion_ignore_case, Qt); | |
481 | ||
482 | readfunc = readdir; | |
483 | if (ver_flag) | |
484 | readfunc = readdirver; | |
485 | file = Fupcase (file); | |
486 | #else /* not VMS */ | |
b7826503 | 487 | CHECK_STRING (file); |
14d55bce RS |
488 | #endif /* not VMS */ |
489 | ||
128ecc89 RS |
490 | #ifdef FILE_SYSTEM_CASE |
491 | file = FILE_SYSTEM_CASE (file); | |
492 | #endif | |
14d55bce | 493 | bestmatch = Qnil; |
24c2a54f RS |
494 | encoded_file = encoded_dir = Qnil; |
495 | GCPRO5 (file, dirname, bestmatch, encoded_file, encoded_dir); | |
3fcc88cc | 496 | dirname = Fexpand_file_name (dirname, Qnil); |
14d55bce | 497 | |
24c2a54f RS |
498 | /* Do completion on the encoded file name |
499 | because the other names in the directory are (we presume) | |
500 | encoded likewise. We decode the completed string at the end. */ | |
501 | encoded_file = ENCODE_FILE (file); | |
502 | ||
503 | encoded_dir = ENCODE_FILE (dirname); | |
504 | ||
14d55bce RS |
505 | /* With passcount = 0, ignore files that end in an ignored extension. |
506 | If nothing found then try again with passcount = 1, don't ignore them. | |
507 | If looking for all completions, start with passcount = 1, | |
508 | so always take even the ignored ones. | |
509 | ||
510 | ** It would not actually be helpful to the user to ignore any possible | |
511 | completions when making a list of them.** */ | |
512 | ||
265a9e55 | 513 | for (passcount = !!all_flag; NILP (bestmatch) && passcount < 2; passcount++) |
14d55bce | 514 | { |
c3a3229c RS |
515 | int inner_count = SPECPDL_INDEX (); |
516 | ||
d15b573e | 517 | BLOCK_INPUT; |
d5db4077 | 518 | d = opendir (SDATA (Fdirectory_file_name (encoded_dir))); |
d15b573e | 519 | UNBLOCK_INPUT; |
24c2a54f | 520 | if (!d) |
14d55bce RS |
521 | report_file_error ("Opening directory", Fcons (dirname, Qnil)); |
522 | ||
62e3881f | 523 | record_unwind_protect (directory_files_internal_unwind, |
9d291bdf | 524 | make_save_value (d, 0)); |
62e3881f | 525 | |
14d55bce RS |
526 | /* Loop reading blocks */ |
527 | /* (att3b compiler bug requires do a null comparison this way) */ | |
528 | while (1) | |
529 | { | |
530 | DIRENTRY *dp; | |
531 | int len; | |
532 | ||
533 | #ifdef VMS | |
534 | dp = (*readfunc) (d); | |
535 | #else | |
9d291bdf | 536 | errno = 0; |
14d55bce | 537 | dp = readdir (d); |
9d291bdf SM |
538 | if (dp == NULL && (0 |
539 | # ifdef EAGAIN | |
540 | || errno == EAGAIN | |
541 | # endif | |
542 | # ifdef EINTR | |
543 | || errno == EINTR | |
544 | # endif | |
545 | )) | |
546 | { QUIT; continue; } | |
14d55bce | 547 | #endif |
9d291bdf | 548 | |
14d55bce RS |
549 | if (!dp) break; |
550 | ||
551 | len = NAMLEN (dp); | |
552 | ||
c3a3229c | 553 | QUIT; |
128ecc89 | 554 | if (! DIRENTRY_NONEMPTY (dp) |
d5db4077 KR |
555 | || len < SCHARS (encoded_file) |
556 | || 0 <= scmp (dp->d_name, SDATA (encoded_file), | |
557 | SCHARS (encoded_file))) | |
14d55bce RS |
558 | continue; |
559 | ||
24c2a54f | 560 | if (file_name_completion_stat (encoded_dir, dp, &st) < 0) |
14d55bce RS |
561 | continue; |
562 | ||
563 | directoryp = ((st.st_mode & S_IFMT) == S_IFDIR); | |
564 | tem = Qnil; | |
ad456ad4 RS |
565 | if (directoryp) |
566 | { | |
567 | #ifndef TRIVIAL_DIRECTORY_ENTRY | |
568 | #define TRIVIAL_DIRECTORY_ENTRY(n) (!strcmp (n, ".") || !strcmp (n, "..")) | |
569 | #endif | |
570 | /* "." and ".." are never interesting as completions, but are | |
571 | actually in the way in a directory contains only one file. */ | |
572 | if (!passcount && TRIVIAL_DIRECTORY_ENTRY (dp->d_name)) | |
573 | continue; | |
d5db4077 | 574 | if (!passcount && len > SCHARS (encoded_file)) |
d013f29b EZ |
575 | /* Ignore directories if they match an element of |
576 | completion-ignored-extensions which ends in a slash. */ | |
577 | for (tem = Vcompletion_ignored_extensions; | |
578 | CONSP (tem); tem = XCDR (tem)) | |
579 | { | |
580 | int elt_len; | |
581 | ||
582 | elt = XCAR (tem); | |
583 | if (!STRINGP (elt)) | |
584 | continue; | |
a74aaa9d EZ |
585 | /* Need to encode ELT, since scmp compares unibyte |
586 | strings only. */ | |
587 | elt = ENCODE_FILE (elt); | |
d5db4077 | 588 | elt_len = SCHARS (elt) - 1; /* -1 for trailing / */ |
7a8d465a | 589 | if (elt_len <= 0) |
d013f29b | 590 | continue; |
d5db4077 | 591 | p1 = SDATA (elt); |
d013f29b EZ |
592 | if (p1[elt_len] != '/') |
593 | continue; | |
594 | skip = len - elt_len; | |
595 | if (skip < 0) | |
596 | continue; | |
597 | ||
598 | if (0 <= scmp (dp->d_name + skip, p1, elt_len)) | |
599 | continue; | |
600 | break; | |
601 | } | |
ad456ad4 RS |
602 | } |
603 | else | |
14d55bce RS |
604 | { |
605 | /* Compare extensions-to-be-ignored against end of this file name */ | |
606 | /* if name is not an exact match against specified string */ | |
d5db4077 | 607 | if (!passcount && len > SCHARS (encoded_file)) |
14d55bce RS |
608 | /* and exit this for loop if a match is found */ |
609 | for (tem = Vcompletion_ignored_extensions; | |
70949dac | 610 | CONSP (tem); tem = XCDR (tem)) |
14d55bce | 611 | { |
70949dac | 612 | elt = XCAR (tem); |
88cf1852 | 613 | if (!STRINGP (elt)) continue; |
a74aaa9d EZ |
614 | /* Need to encode ELT, since scmp compares unibyte |
615 | strings only. */ | |
616 | elt = ENCODE_FILE (elt); | |
d5db4077 | 617 | skip = len - SCHARS (elt); |
14d55bce RS |
618 | if (skip < 0) continue; |
619 | ||
620 | if (0 <= scmp (dp->d_name + skip, | |
d5db4077 KR |
621 | SDATA (elt), |
622 | SCHARS (elt))) | |
14d55bce RS |
623 | continue; |
624 | break; | |
625 | } | |
626 | } | |
627 | ||
f676868d KH |
628 | /* If an ignored-extensions match was found, |
629 | don't process this name as a completion. */ | |
630 | if (!passcount && CONSP (tem)) | |
631 | continue; | |
632 | ||
633 | if (!passcount) | |
14d55bce | 634 | { |
f676868d KH |
635 | Lisp_Object regexps; |
636 | Lisp_Object zero; | |
617b3bfe | 637 | XSETFASTINT (zero, 0); |
f676868d KH |
638 | |
639 | /* Ignore this element if it fails to match all the regexps. */ | |
640 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
70949dac | 641 | regexps = XCDR (regexps)) |
f676868d | 642 | { |
1c56232f EZ |
643 | tem = Fstring_match (XCAR (regexps), |
644 | make_string (dp->d_name, len), zero); | |
f676868d KH |
645 | if (NILP (tem)) |
646 | break; | |
647 | } | |
648 | if (CONSP (regexps)) | |
649 | continue; | |
650 | } | |
14d55bce | 651 | |
f676868d | 652 | /* Update computation of how much all possible completions match */ |
14d55bce | 653 | |
f676868d KH |
654 | matchcount++; |
655 | ||
656 | if (all_flag || NILP (bestmatch)) | |
657 | { | |
658 | /* This is a possible completion */ | |
659 | if (directoryp) | |
14d55bce | 660 | { |
f676868d KH |
661 | /* This completion is a directory; make it end with '/' */ |
662 | name = Ffile_name_as_directory (make_string (dp->d_name, len)); | |
663 | } | |
664 | else | |
665 | name = make_string (dp->d_name, len); | |
666 | if (all_flag) | |
667 | { | |
bd33479f | 668 | name = DECODE_FILE (name); |
f676868d | 669 | bestmatch = Fcons (name, bestmatch); |
14d55bce RS |
670 | } |
671 | else | |
672 | { | |
f676868d | 673 | bestmatch = name; |
d5db4077 | 674 | bestmatchsize = SCHARS (name); |
f676868d KH |
675 | } |
676 | } | |
677 | else | |
678 | { | |
679 | compare = min (bestmatchsize, len); | |
d5db4077 | 680 | p1 = SDATA (bestmatch); |
f676868d KH |
681 | p2 = (unsigned char *) dp->d_name; |
682 | matchsize = scmp(p1, p2, compare); | |
683 | if (matchsize < 0) | |
684 | matchsize = compare; | |
685 | if (completion_ignore_case) | |
686 | { | |
687 | /* If this is an exact match except for case, | |
688 | use it as the best match rather than one that is not | |
689 | an exact match. This way, we get the case pattern | |
690 | of the actual match. */ | |
f5ec5d3d RS |
691 | /* This tests that the current file is an exact match |
692 | but BESTMATCH is not (it is too long). */ | |
f676868d | 693 | if ((matchsize == len |
177c0ea7 | 694 | && matchsize + !!directoryp |
d5db4077 | 695 | < SCHARS (bestmatch)) |
f676868d KH |
696 | || |
697 | /* If there is no exact match ignoring case, | |
698 | prefer a match that does not change the case | |
699 | of the input. */ | |
f5ec5d3d RS |
700 | /* If there is more than one exact match aside from |
701 | case, and one of them is exact including case, | |
702 | prefer that one. */ | |
703 | /* This == checks that, of current file and BESTMATCH, | |
704 | either both or neither are exact. */ | |
f676868d KH |
705 | (((matchsize == len) |
706 | == | |
177c0ea7 | 707 | (matchsize + !!directoryp |
d5db4077 KR |
708 | == SCHARS (bestmatch))) |
709 | && !bcmp (p2, SDATA (encoded_file), SCHARS (encoded_file)) | |
710 | && bcmp (p1, SDATA (encoded_file), SCHARS (encoded_file)))) | |
97e98a56 | 711 | { |
f676868d KH |
712 | bestmatch = make_string (dp->d_name, len); |
713 | if (directoryp) | |
714 | bestmatch = Ffile_name_as_directory (bestmatch); | |
97e98a56 | 715 | } |
14d55bce | 716 | } |
f676868d KH |
717 | |
718 | /* If this dirname all matches, see if implicit following | |
719 | slash does too. */ | |
720 | if (directoryp | |
721 | && compare == matchsize | |
722 | && bestmatchsize > matchsize | |
0b39d75d | 723 | && IS_ANY_SEP (p1[matchsize])) |
f676868d KH |
724 | matchsize++; |
725 | bestmatchsize = matchsize; | |
14d55bce RS |
726 | } |
727 | } | |
c3a3229c RS |
728 | /* This closes the directory. */ |
729 | bestmatch = unbind_to (inner_count, bestmatch); | |
14d55bce RS |
730 | } |
731 | ||
3fcc88cc | 732 | UNGCPRO; |
c3a3229c | 733 | bestmatch = unbind_to (count, bestmatch); |
14d55bce | 734 | |
265a9e55 | 735 | if (all_flag || NILP (bestmatch)) |
24c2a54f | 736 | { |
bd33479f KH |
737 | if (STRINGP (bestmatch)) |
738 | bestmatch = DECODE_FILE (bestmatch); | |
24c2a54f RS |
739 | return bestmatch; |
740 | } | |
d5db4077 | 741 | if (matchcount == 1 && bestmatchsize == SCHARS (file)) |
14d55bce | 742 | return Qt; |
24c2a54f RS |
743 | bestmatch = Fsubstring (bestmatch, make_number (0), |
744 | make_number (bestmatchsize)); | |
745 | /* Now that we got the right initial segment of BESTMATCH, | |
746 | decode it from the coding system in use. */ | |
bd33479f | 747 | bestmatch = DECODE_FILE (bestmatch); |
24c2a54f | 748 | return bestmatch; |
14d55bce RS |
749 | } |
750 | ||
b3f04ced RS |
751 | /* Compare exactly LEN chars of strings at S1 and S2, |
752 | ignoring case if appropriate. | |
753 | Return -1 if strings match, | |
754 | else number of chars that match at the beginning. */ | |
755 | ||
756 | static int | |
757 | scmp (s1, s2, len) | |
758 | register unsigned char *s1, *s2; | |
759 | int len; | |
760 | { | |
761 | register int l = len; | |
762 | ||
763 | if (completion_ignore_case) | |
764 | { | |
765 | while (l && DOWNCASE (*s1++) == DOWNCASE (*s2++)) | |
766 | l--; | |
767 | } | |
768 | else | |
769 | { | |
770 | while (l && *s1++ == *s2++) | |
771 | l--; | |
772 | } | |
773 | if (l == 0) | |
774 | return -1; | |
775 | else | |
776 | return len - l; | |
777 | } | |
778 | ||
dfcf069d | 779 | static int |
14d55bce RS |
780 | file_name_completion_stat (dirname, dp, st_addr) |
781 | Lisp_Object dirname; | |
782 | DIRENTRY *dp; | |
783 | struct stat *st_addr; | |
784 | { | |
785 | int len = NAMLEN (dp); | |
d5db4077 | 786 | int pos = SCHARS (dirname); |
7e3cf34f | 787 | int value; |
14d55bce RS |
788 | char *fullname = (char *) alloca (len + pos + 2); |
789 | ||
04924ee3 RS |
790 | #ifdef MSDOS |
791 | #if __DJGPP__ > 1 | |
792 | /* Some fields of struct stat are *very* expensive to compute on MS-DOS, | |
793 | but aren't required here. Avoid computing the following fields: | |
794 | st_inode, st_size and st_nlink for directories, and the execute bits | |
795 | in st_mode for non-directory files with non-standard extensions. */ | |
796 | ||
797 | unsigned short save_djstat_flags = _djstat_flags; | |
798 | ||
799 | _djstat_flags = _STAT_INODE | _STAT_EXEC_MAGIC | _STAT_DIRSIZE; | |
800 | #endif /* __DJGPP__ > 1 */ | |
801 | #endif /* MSDOS */ | |
802 | ||
d5db4077 | 803 | bcopy (SDATA (dirname), fullname, pos); |
14d55bce | 804 | #ifndef VMS |
0b39d75d RS |
805 | if (!IS_DIRECTORY_SEP (fullname[pos - 1])) |
806 | fullname[pos++] = DIRECTORY_SEP; | |
14d55bce RS |
807 | #endif |
808 | ||
809 | bcopy (dp->d_name, fullname + pos, len); | |
810 | fullname[pos + len] = 0; | |
811 | ||
a889bd0e | 812 | #ifdef S_IFLNK |
7e3cf34f RS |
813 | /* We want to return success if a link points to a nonexistent file, |
814 | but we want to return the status for what the link points to, | |
815 | in case it is a directory. */ | |
816 | value = lstat (fullname, st_addr); | |
817 | stat (fullname, st_addr); | |
818 | return value; | |
a889bd0e | 819 | #else |
04924ee3 RS |
820 | value = stat (fullname, st_addr); |
821 | #ifdef MSDOS | |
822 | #if __DJGPP__ > 1 | |
823 | _djstat_flags = save_djstat_flags; | |
824 | #endif /* __DJGPP__ > 1 */ | |
825 | #endif /* MSDOS */ | |
826 | return value; | |
827 | #endif /* S_IFLNK */ | |
14d55bce RS |
828 | } |
829 | \f | |
3ed991aa RS |
830 | #ifdef VMS |
831 | ||
832 | DEFUN ("file-name-all-versions", Ffile_name_all_versions, | |
335c5470 PJ |
833 | Sfile_name_all_versions, 2, 2, 0, |
834 | doc: /* Return a list of all versions of file name FILE in directory DIRECTORY. */) | |
835 | (file, directory) | |
23bd240f | 836 | Lisp_Object file, directory; |
3ed991aa | 837 | { |
23bd240f | 838 | return file_name_completion (file, directory, 1, 1); |
3ed991aa RS |
839 | } |
840 | ||
841 | DEFUN ("file-version-limit", Ffile_version_limit, Sfile_version_limit, 1, 1, 0, | |
335c5470 PJ |
842 | doc: /* Return the maximum number of versions allowed for FILE. |
843 | Returns nil if the file cannot be opened or if there is no version limit. */) | |
844 | (filename) | |
3ed991aa RS |
845 | Lisp_Object filename; |
846 | { | |
847 | Lisp_Object retval; | |
848 | struct FAB fab; | |
849 | struct RAB rab; | |
850 | struct XABFHC xabfhc; | |
851 | int status; | |
852 | ||
853 | filename = Fexpand_file_name (filename, Qnil); | |
854 | fab = cc$rms_fab; | |
855 | xabfhc = cc$rms_xabfhc; | |
d5db4077 | 856 | fab.fab$l_fna = SDATA (filename); |
3ed991aa RS |
857 | fab.fab$b_fns = strlen (fab.fab$l_fna); |
858 | fab.fab$l_xab = (char *) &xabfhc; | |
859 | status = sys$open (&fab, 0, 0); | |
860 | if (status != RMS$_NORMAL) /* Probably non-existent file */ | |
861 | return Qnil; | |
862 | sys$close (&fab, 0, 0); | |
863 | if (xabfhc.xab$w_verlimit == 32767) | |
864 | return Qnil; /* No version limit */ | |
865 | else | |
866 | return make_number (xabfhc.xab$w_verlimit); | |
867 | } | |
868 | ||
869 | #endif /* VMS */ | |
870 | \f | |
14d55bce RS |
871 | Lisp_Object |
872 | make_time (time) | |
e5124be7 | 873 | time_t time; |
14d55bce RS |
874 | { |
875 | return Fcons (make_number (time >> 16), | |
876 | Fcons (make_number (time & 0177777), Qnil)); | |
877 | } | |
878 | ||
0e6195ed | 879 | DEFUN ("file-attributes", Ffile_attributes, Sfile_attributes, 1, 2, 0, |
335c5470 PJ |
880 | doc: /* Return a list of attributes of file FILENAME. |
881 | Value is nil if specified file cannot be opened. | |
0e6195ed LH |
882 | |
883 | ID-FORMAT specifies the preferred format of attributes uid and gid (see | |
884 | below) - valid values are 'string and 'integer. The latter is the default, | |
885 | but we plan to change that, so you should specify a non-nil value for | |
886 | ID-FORMAT if you use the returned uid or gid. | |
887 | ||
888 | Elements of the attribute list are: | |
335c5470 PJ |
889 | 0. t for directory, string (name linked to) for symbolic link, or nil. |
890 | 1. Number of links to file. | |
0e6195ed LH |
891 | 2. File uid as a string or an integer. If a string value cannot be |
892 | looked up, the integer value is returned. | |
893 | 3. File gid, likewise. | |
335c5470 PJ |
894 | 4. Last access time, as a list of two integers. |
895 | First integer has high-order 16 bits of time, second has low 16 bits. | |
896 | 5. Last modification time, likewise. | |
897 | 6. Last status change time, likewise. | |
898 | 7. Size in bytes. | |
899 | This is a floating point number if the size is too large for an integer. | |
900 | 8. File modes, as a string of ten letters or dashes as in ls -l. | |
901 | 9. t iff file's gid would change if file were deleted and recreated. | |
902 | 10. inode number. If inode number is larger than the Emacs integer, | |
903 | this is a cons cell containing two integers: first the high part, | |
904 | then the low 16 bits. | |
905 | 11. Device number. If it is larger than the Emacs integer, this is | |
0e6195ed LH |
906 | a cons cell, similar to the inode number. */) |
907 | (filename, id_format) | |
908 | Lisp_Object filename, id_format; | |
14d55bce RS |
909 | { |
910 | Lisp_Object values[12]; | |
24c2a54f | 911 | Lisp_Object encoded; |
14d55bce | 912 | struct stat s; |
0e6195ed LH |
913 | struct passwd *pw; |
914 | struct group *gr; | |
0a974c85 | 915 | #if defined (BSD4_2) || defined (BSD4_3) |
b3edfc9b | 916 | Lisp_Object dirname; |
14d55bce | 917 | struct stat sdir; |
b3edfc9b | 918 | #endif |
14d55bce | 919 | char modes[10]; |
32f4334d | 920 | Lisp_Object handler; |
7435aef8 | 921 | struct gcpro gcpro1; |
14d55bce RS |
922 | |
923 | filename = Fexpand_file_name (filename, Qnil); | |
32f4334d RS |
924 | |
925 | /* If the file name has special constructs in it, | |
926 | call the corresponding file handler. */ | |
a617e913 | 927 | handler = Ffind_file_name_handler (filename, Qfile_attributes); |
32f4334d | 928 | if (!NILP (handler)) |
d8e18df7 SM |
929 | { /* Only pass the extra arg if it is used to help backward compatibility |
930 | with old file handlers which do not implement the new arg. --Stef */ | |
931 | if (NILP (id_format)) | |
932 | return call2 (handler, Qfile_attributes, filename); | |
933 | else | |
934 | return call3 (handler, Qfile_attributes, filename, id_format); | |
935 | } | |
32f4334d | 936 | |
7435aef8 | 937 | GCPRO1 (filename); |
24c2a54f | 938 | encoded = ENCODE_FILE (filename); |
7435aef8 | 939 | UNGCPRO; |
24c2a54f | 940 | |
d5db4077 | 941 | if (lstat (SDATA (encoded), &s) < 0) |
14d55bce RS |
942 | return Qnil; |
943 | ||
944 | switch (s.st_mode & S_IFMT) | |
945 | { | |
946 | default: | |
947 | values[0] = Qnil; break; | |
948 | case S_IFDIR: | |
949 | values[0] = Qt; break; | |
950 | #ifdef S_IFLNK | |
951 | case S_IFLNK: | |
952 | values[0] = Ffile_symlink_p (filename); break; | |
953 | #endif | |
954 | } | |
955 | values[1] = make_number (s.st_nlink); | |
0e6195ed LH |
956 | if (NILP (id_format) || EQ (id_format, Qinteger)) |
957 | { | |
958 | values[2] = make_number (s.st_uid); | |
959 | values[3] = make_number (s.st_gid); | |
960 | } | |
961 | else | |
962 | { | |
8c8a7c58 | 963 | BLOCK_INPUT; |
0e6195ed | 964 | pw = (struct passwd *) getpwuid (s.st_uid); |
45c7d781 | 965 | values[2] = (pw ? build_string (pw->pw_name) : make_number (s.st_uid)); |
0e6195ed | 966 | gr = (struct group *) getgrgid (s.st_gid); |
45c7d781 | 967 | values[3] = (gr ? build_string (gr->gr_name) : make_number (s.st_gid)); |
8c8a7c58 | 968 | UNBLOCK_INPUT; |
0e6195ed | 969 | } |
14d55bce RS |
970 | values[4] = make_time (s.st_atime); |
971 | values[5] = make_time (s.st_mtime); | |
972 | values[6] = make_time (s.st_ctime); | |
68c45bf0 | 973 | values[7] = make_number (s.st_size); |
cb1846b4 | 974 | /* If the size is out of range for an integer, return a float. */ |
60fc6069 | 975 | if (XINT (values[7]) != s.st_size) |
cb1846b4 | 976 | values[7] = make_float ((double)s.st_size); |
4bc12672 JR |
977 | /* If the size is negative, and its type is long, convert it back to |
978 | positive. */ | |
979 | if (s.st_size < 0 && sizeof (s.st_size) == sizeof (long)) | |
980 | values[7] = make_float ((double) ((unsigned long) s.st_size)); | |
981 | ||
14d55bce RS |
982 | filemodestring (&s, modes); |
983 | values[8] = make_string (modes, 10); | |
0a974c85 | 984 | #if defined (BSD4_2) || defined (BSD4_3) /* file gid will be dir gid */ |
14d55bce | 985 | dirname = Ffile_name_directory (filename); |
24c2a54f RS |
986 | if (! NILP (dirname)) |
987 | encoded = ENCODE_FILE (dirname); | |
d5db4077 | 988 | if (! NILP (dirname) && stat (SDATA (encoded), &sdir) == 0) |
14d55bce RS |
989 | values[9] = (sdir.st_gid != s.st_gid) ? Qt : Qnil; |
990 | else /* if we can't tell, assume worst */ | |
991 | values[9] = Qt; | |
992 | #else /* file gid will be egid */ | |
993 | values[9] = (s.st_gid != getegid ()) ? Qt : Qnil; | |
994 | #endif /* BSD4_2 (or BSD4_3) */ | |
f8edfd76 | 995 | if (FIXNUM_OVERFLOW_P (s.st_ino)) |
4c637faa RS |
996 | /* To allow inode numbers larger than VALBITS, separate the bottom |
997 | 16 bits. */ | |
998 | values[10] = Fcons (make_number (s.st_ino >> 16), | |
999 | make_number (s.st_ino & 0xffff)); | |
1000 | else | |
1001 | /* But keep the most common cases as integers. */ | |
1002 | values[10] = make_number (s.st_ino); | |
68c45bf0 PE |
1003 | |
1004 | /* Likewise for device. */ | |
f8edfd76 | 1005 | if (FIXNUM_OVERFLOW_P (s.st_dev)) |
68c45bf0 PE |
1006 | values[11] = Fcons (make_number (s.st_dev >> 16), |
1007 | make_number (s.st_dev & 0xffff)); | |
1008 | else | |
1009 | values[11] = make_number (s.st_dev); | |
1010 | ||
14d55bce RS |
1011 | return Flist (sizeof(values) / sizeof(values[0]), values); |
1012 | } | |
4424b255 GV |
1013 | |
1014 | DEFUN ("file-attributes-lessp", Ffile_attributes_lessp, Sfile_attributes_lessp, 2, 2, 0, | |
335c5470 PJ |
1015 | doc: /* Return t if first arg file attributes list is less than second. |
1016 | Comparison is in lexicographic order and case is significant. */) | |
1017 | (f1, f2) | |
4424b255 GV |
1018 | Lisp_Object f1, f2; |
1019 | { | |
1020 | return Fstring_lessp (Fcar (f1), Fcar (f2)); | |
1021 | } | |
14d55bce | 1022 | \f |
dfcf069d | 1023 | void |
14d55bce RS |
1024 | syms_of_dired () |
1025 | { | |
32f4334d | 1026 | Qdirectory_files = intern ("directory-files"); |
4424b255 | 1027 | Qdirectory_files_and_attributes = intern ("directory-files-and-attributes"); |
32f4334d RS |
1028 | Qfile_name_completion = intern ("file-name-completion"); |
1029 | Qfile_name_all_completions = intern ("file-name-all-completions"); | |
434e6714 | 1030 | Qfile_attributes = intern ("file-attributes"); |
4424b255 | 1031 | Qfile_attributes_lessp = intern ("file-attributes-lessp"); |
32f4334d | 1032 | |
a2d3836c | 1033 | staticpro (&Qdirectory_files); |
4424b255 | 1034 | staticpro (&Qdirectory_files_and_attributes); |
a2d3836c EN |
1035 | staticpro (&Qfile_name_completion); |
1036 | staticpro (&Qfile_name_all_completions); | |
1037 | staticpro (&Qfile_attributes); | |
4424b255 | 1038 | staticpro (&Qfile_attributes_lessp); |
a2d3836c | 1039 | |
14d55bce | 1040 | defsubr (&Sdirectory_files); |
4424b255 | 1041 | defsubr (&Sdirectory_files_and_attributes); |
14d55bce RS |
1042 | defsubr (&Sfile_name_completion); |
1043 | #ifdef VMS | |
1044 | defsubr (&Sfile_name_all_versions); | |
3ed991aa | 1045 | defsubr (&Sfile_version_limit); |
14d55bce RS |
1046 | #endif /* VMS */ |
1047 | defsubr (&Sfile_name_all_completions); | |
1048 | defsubr (&Sfile_attributes); | |
4424b255 | 1049 | defsubr (&Sfile_attributes_lessp); |
14d55bce RS |
1050 | |
1051 | #ifdef VMS | |
1052 | Qcompletion_ignore_case = intern ("completion-ignore-case"); | |
1053 | staticpro (&Qcompletion_ignore_case); | |
1054 | #endif /* VMS */ | |
1055 | ||
1056 | DEFVAR_LISP ("completion-ignored-extensions", &Vcompletion_ignored_extensions, | |
407a52c4 LT |
1057 | doc: /* Completion ignores file names ending in any string in this list. |
1058 | It does not ignore them if all possible completions end in one of | |
1059 | these strings or when displaying a list of completions. | |
1060 | It ignores directory names if they match any string in this list which | |
1061 | ends in a slash. */); | |
14d55bce RS |
1062 | Vcompletion_ignored_extensions = Qnil; |
1063 | } | |
ab5796a9 MB |
1064 | |
1065 | /* arch-tag: 1ac8deca-4d8f-4d41-ade9-089154d98c03 | |
1066 | (do not change this comment) */ |