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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, |
8cabe764 | 3 | 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
14d55bce RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
14d55bce | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
14d55bce RS |
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 | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
14d55bce RS |
19 | |
20 | ||
3964b9a7 RS |
21 | #include <config.h> |
22 | ||
14d55bce RS |
23 | #include <stdio.h> |
24 | #include <sys/types.h> | |
25 | #include <sys/stat.h> | |
26 | ||
5b9c0a1d | 27 | #ifdef HAVE_PWD_H |
6b61353c | 28 | #include <pwd.h> |
5b9c0a1d | 29 | #endif |
6b61353c | 30 | #include <grp.h> |
6b61353c | 31 | |
7cc9f69f | 32 | #include <errno.h> |
68c45bf0 | 33 | |
dfcf069d AS |
34 | #ifdef HAVE_UNISTD_H |
35 | #include <unistd.h> | |
36 | #endif | |
37 | ||
d6717cdb JB |
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 | ||
14d55bce RS |
50 | #ifdef SYSV_SYSTEM_DIR |
51 | ||
52 | #include <dirent.h> | |
53 | #define DIRENTRY struct dirent | |
14d55bce | 54 | |
128ecc89 | 55 | #else /* not SYSV_SYSTEM_DIR */ |
14d55bce | 56 | |
128ecc89 RS |
57 | #ifdef MSDOS |
58 | #include <dirent.h> | |
59 | #else | |
14d55bce | 60 | #include <sys/dir.h> |
128ecc89 | 61 | #endif |
14d55bce | 62 | |
851cab13 DL |
63 | #include <sys/stat.h> |
64 | ||
128ecc89 | 65 | #ifndef MSDOS |
14d55bce | 66 | #define DIRENTRY struct direct |
14d55bce RS |
67 | |
68 | extern DIR *opendir (); | |
69 | extern struct direct *readdir (); | |
70 | ||
128ecc89 RS |
71 | #endif /* not MSDOS */ |
72 | #endif /* not SYSV_SYSTEM_DIR */ | |
73 | ||
8f7f8c65 EZ |
74 | /* Some versions of Cygwin don't have d_ino in `struct dirent'. */ |
75 | #if defined(MSDOS) || defined(__CYGWIN__) | |
128ecc89 RS |
76 | #define DIRENTRY_NONEMPTY(p) ((p)->d_name[0] != 0) |
77 | #else | |
78 | #define DIRENTRY_NONEMPTY(p) ((p)->d_ino) | |
14d55bce RS |
79 | #endif |
80 | ||
14d55bce | 81 | #include "lisp.h" |
fa8459a3 | 82 | #include "systime.h" |
14d55bce RS |
83 | #include "buffer.h" |
84 | #include "commands.h" | |
d2f6dae8 | 85 | #include "character.h" |
bd33479f KH |
86 | #include "charset.h" |
87 | #include "coding.h" | |
14d55bce | 88 | #include "regex.h" |
8c8a7c58 | 89 | #include "blockinput.h" |
14d55bce | 90 | |
e50c66d3 KH |
91 | /* Returns a search buffer, with a fastmap allocated and ready to go. */ |
92 | extern struct re_pattern_buffer *compile_pattern (); | |
c7e466e1 | 93 | |
851cab13 DL |
94 | /* From filemode.c. Can't go in Lisp.h because of `stat'. */ |
95 | extern void filemodestring P_ ((struct stat *, char *)); | |
96 | ||
14d55bce RS |
97 | /* if system does not have symbolic links, it does not have lstat. |
98 | In that case, use ordinary stat instead. */ | |
99 | ||
100 | #ifndef S_IFLNK | |
101 | #define lstat stat | |
102 | #endif | |
103 | ||
97e98a56 | 104 | extern int completion_ignore_case; |
ecd3f8b2 | 105 | extern Lisp_Object Qcompletion_ignore_case; |
f676868d | 106 | extern Lisp_Object Vcompletion_regexp_list; |
ccbcf979 | 107 | |
14d55bce | 108 | Lisp_Object Vcompletion_ignored_extensions; |
32f4334d | 109 | Lisp_Object Qdirectory_files; |
4424b255 | 110 | Lisp_Object Qdirectory_files_and_attributes; |
32f4334d RS |
111 | Lisp_Object Qfile_name_completion; |
112 | Lisp_Object Qfile_name_all_completions; | |
434e6714 | 113 | Lisp_Object Qfile_attributes; |
4424b255 | 114 | Lisp_Object Qfile_attributes_lessp; |
b3f04ced RS |
115 | |
116 | static int scmp P_ ((unsigned char *, unsigned char *, int)); | |
14d55bce | 117 | \f |
2488aba5 AI |
118 | |
119 | Lisp_Object | |
120 | directory_files_internal_unwind (dh) | |
121 | Lisp_Object dh; | |
122 | { | |
9d291bdf | 123 | DIR *d = (DIR *) XSAVE_VALUE (dh)->pointer; |
d15b573e | 124 | BLOCK_INPUT; |
2488aba5 | 125 | closedir (d); |
d15b573e | 126 | UNBLOCK_INPUT; |
2488aba5 AI |
127 | return Qnil; |
128 | } | |
129 | ||
177c0ea7 | 130 | /* Function shared by Fdirectory_files and Fdirectory_files_and_attributes. |
4424b255 | 131 | When ATTRS is zero, return a list of directory filenames; when |
6b61353c KH |
132 | non-zero, return a list of directory filenames and their attributes. |
133 | In the latter case, ID_FORMAT is passed to Ffile_attributes. */ | |
f69f9da1 | 134 | |
4424b255 | 135 | Lisp_Object |
6b61353c | 136 | directory_files_internal (directory, full, match, nosort, attrs, id_format) |
23bd240f | 137 | Lisp_Object directory, full, match, nosort; |
4424b255 | 138 | int attrs; |
6b61353c | 139 | Lisp_Object id_format; |
14d55bce RS |
140 | { |
141 | DIR *d; | |
388ac098 GM |
142 | int directory_nbytes; |
143 | Lisp_Object list, dirfilename, encoded_directory; | |
6bbd7a29 | 144 | struct re_pattern_buffer *bufp = NULL; |
96d64004 | 145 | int needsep = 0; |
aed13378 | 146 | int count = SPECPDL_INDEX (); |
388ac098 | 147 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
8e42f043 | 148 | DIRENTRY *dp; |
32f4334d | 149 | |
96d64004 | 150 | /* Because of file name handlers, these functions might call |
6155fae1 | 151 | Ffuncall, and cause a GC. */ |
388ac098 GM |
152 | list = encoded_directory = dirfilename = Qnil; |
153 | GCPRO5 (match, directory, list, dirfilename, encoded_directory); | |
96d64004 | 154 | dirfilename = Fdirectory_file_name (directory); |
6155fae1 | 155 | |
265a9e55 | 156 | if (!NILP (match)) |
14d55bce | 157 | { |
b7826503 | 158 | CHECK_STRING (match); |
ebb9e16f JB |
159 | |
160 | /* MATCH might be a flawed regular expression. Rather than | |
8e6208c5 | 161 | catching and signaling our own errors, we just call |
ebb9e16f | 162 | compile_pattern to do the work for us. */ |
c872c6b2 RS |
163 | /* Pass 1 for the MULTIBYTE arg |
164 | because we do make multibyte strings if the contents warrant. */ | |
1a9fbabe EZ |
165 | # ifdef WINDOWSNT |
166 | /* Windows users want case-insensitive wildcards. */ | |
167 | bufp = compile_pattern (match, 0, | |
168 | buffer_defaults.case_canon_table, 0, 1); | |
169 | # else /* !WINDOWSNT */ | |
3e937712 | 170 | bufp = compile_pattern (match, 0, Qnil, 0, 1); |
1a9fbabe | 171 | # endif /* !WINDOWSNT */ |
14d55bce RS |
172 | } |
173 | ||
b3edfc9b | 174 | /* Note: ENCODE_FILE and DECODE_FILE can GC because they can run |
388ac098 GM |
175 | run_pre_post_conversion_on_str which calls Lisp directly and |
176 | indirectly. */ | |
6c8b4f07 SM |
177 | if (STRING_MULTIBYTE (dirfilename)) |
178 | dirfilename = ENCODE_FILE (dirfilename); | |
179 | encoded_directory = (STRING_MULTIBYTE (directory) | |
180 | ? ENCODE_FILE (directory) : directory); | |
24c2a54f | 181 | |
e50c66d3 | 182 | /* Now *bufp is the compiled form of MATCH; don't call anything |
6155fae1 JB |
183 | which might compile a new regexp until we're done with the loop! */ |
184 | ||
d15b573e | 185 | BLOCK_INPUT; |
d5db4077 | 186 | d = opendir (SDATA (dirfilename)); |
d15b573e | 187 | UNBLOCK_INPUT; |
388ac098 | 188 | if (d == NULL) |
23bd240f | 189 | report_file_error ("Opening directory", Fcons (directory, Qnil)); |
14d55bce | 190 | |
2488aba5 AI |
191 | /* Unfortunately, we can now invoke expand-file-name and |
192 | file-attributes on filenames, both of which can throw, so we must | |
193 | do a proper unwind-protect. */ | |
194 | record_unwind_protect (directory_files_internal_unwind, | |
9d291bdf | 195 | make_save_value (d, 0)); |
2488aba5 | 196 | |
d5db4077 | 197 | directory_nbytes = SBYTES (directory); |
c81a9bdc | 198 | re_match_object = Qt; |
14d55bce | 199 | |
96d64004 | 200 | /* Decide whether we need to add a directory separator. */ |
388ac098 | 201 | if (directory_nbytes == 0 |
d5db4077 | 202 | || !IS_ANY_SEP (SREF (directory, directory_nbytes - 1))) |
96d64004 | 203 | needsep = 1; |
96d64004 | 204 | |
8e42f043 | 205 | /* Loop reading blocks until EOF or error. */ |
f69f9da1 | 206 | for (;;) |
14d55bce | 207 | { |
f69f9da1 GM |
208 | errno = 0; |
209 | dp = readdir (d); | |
210 | ||
9d291bdf | 211 | if (dp == NULL && (0 |
f69f9da1 | 212 | #ifdef EAGAIN |
9d291bdf SM |
213 | || errno == EAGAIN |
214 | #endif | |
215 | #ifdef EINTR | |
216 | || errno == EINTR | |
f69f9da1 | 217 | #endif |
9d291bdf SM |
218 | )) |
219 | { QUIT; continue; } | |
177c0ea7 | 220 | |
f69f9da1 GM |
221 | if (dp == NULL) |
222 | break; | |
223 | ||
128ecc89 | 224 | if (DIRENTRY_NONEMPTY (dp)) |
14d55bce | 225 | { |
e23f810c | 226 | int len; |
2488aba5 | 227 | int wanted = 0; |
388ac098 GM |
228 | Lisp_Object name, finalname; |
229 | struct gcpro gcpro1, gcpro2; | |
e23f810c KH |
230 | |
231 | len = NAMLEN (dp); | |
9ad4f3e5 | 232 | name = finalname = make_unibyte_string (dp->d_name, len); |
388ac098 | 233 | GCPRO2 (finalname, name); |
177c0ea7 | 234 | |
6c8b4f07 | 235 | /* Note: DECODE_FILE can GC; it should protect its argument, |
388ac098 GM |
236 | though. */ |
237 | name = DECODE_FILE (name); | |
d5db4077 | 238 | len = SBYTES (name); |
e23f810c | 239 | |
2488aba5 AI |
240 | /* Now that we have unwind_protect in place, we might as well |
241 | allow matching to be interrupted. */ | |
242 | immediate_quit = 1; | |
243 | QUIT; | |
244 | ||
265a9e55 | 245 | if (NILP (match) |
d5db4077 | 246 | || (0 <= re_search (bufp, SDATA (name), len, 0, len, 0))) |
388ac098 | 247 | wanted = 1; |
2488aba5 AI |
248 | |
249 | immediate_quit = 0; | |
250 | ||
251 | if (wanted) | |
14d55bce | 252 | { |
265a9e55 | 253 | if (!NILP (full)) |
14d55bce | 254 | { |
e23f810c | 255 | Lisp_Object fullname; |
388ac098 GM |
256 | int nbytes = len + directory_nbytes + needsep; |
257 | int nchars; | |
5617588f | 258 | |
388ac098 | 259 | fullname = make_uninit_multibyte_string (nbytes, nbytes); |
d5db4077 | 260 | bcopy (SDATA (directory), SDATA (fullname), |
388ac098 | 261 | directory_nbytes); |
177c0ea7 | 262 | |
5617588f | 263 | if (needsep) |
d549c5db | 264 | SSET (fullname, directory_nbytes, DIRECTORY_SEP); |
177c0ea7 | 265 | |
d5db4077 KR |
266 | bcopy (SDATA (name), |
267 | SDATA (fullname) + directory_nbytes + needsep, | |
388ac098 | 268 | len); |
177c0ea7 | 269 | |
d5db4077 | 270 | nchars = chars_in_text (SDATA (fullname), nbytes); |
388ac098 GM |
271 | |
272 | /* Some bug somewhere. */ | |
273 | if (nchars > nbytes) | |
274 | abort (); | |
177c0ea7 | 275 | |
437fcd47 | 276 | STRING_SET_CHARS (fullname, nchars); |
388ac098 | 277 | if (nchars == nbytes) |
d5db4077 | 278 | STRING_SET_UNIBYTE (fullname); |
177c0ea7 | 279 | |
4424b255 GV |
280 | finalname = fullname; |
281 | } | |
aab9c564 KH |
282 | else |
283 | finalname = name; | |
4424b255 GV |
284 | |
285 | if (attrs) | |
286 | { | |
287 | /* Construct an expanded filename for the directory entry. | |
288 | Use the decoded names for input to Ffile_attributes. */ | |
388ac098 GM |
289 | Lisp_Object decoded_fullname, fileattrs; |
290 | struct gcpro gcpro1, gcpro2; | |
291 | ||
292 | decoded_fullname = fileattrs = Qnil; | |
293 | GCPRO2 (decoded_fullname, fileattrs); | |
4424b255 | 294 | |
388ac098 | 295 | /* Both Fexpand_file_name and Ffile_attributes can GC. */ |
4424b255 | 296 | decoded_fullname = Fexpand_file_name (name, directory); |
6b61353c | 297 | fileattrs = Ffile_attributes (decoded_fullname, id_format); |
4424b255 GV |
298 | |
299 | list = Fcons (Fcons (finalname, fileattrs), list); | |
388ac098 | 300 | UNGCPRO; |
4424b255 GV |
301 | } |
302 | else | |
388ac098 | 303 | list = Fcons (finalname, list); |
14d55bce | 304 | } |
388ac098 GM |
305 | |
306 | UNGCPRO; | |
14d55bce RS |
307 | } |
308 | } | |
2488aba5 | 309 | |
d15b573e | 310 | BLOCK_INPUT; |
14d55bce | 311 | closedir (d); |
d15b573e | 312 | UNBLOCK_INPUT; |
2488aba5 AI |
313 | |
314 | /* Discard the unwind protect. */ | |
315 | specpdl_ptr = specpdl + count; | |
316 | ||
388ac098 GM |
317 | if (NILP (nosort)) |
318 | list = Fsort (Fnreverse (list), | |
319 | attrs ? Qfile_attributes_lessp : Qstring_lessp); | |
177c0ea7 | 320 | |
388ac098 | 321 | RETURN_UNGCPRO (list); |
14d55bce | 322 | } |
4424b255 GV |
323 | |
324 | ||
325 | DEFUN ("directory-files", Fdirectory_files, Sdirectory_files, 1, 4, 0, | |
335c5470 PJ |
326 | doc: /* Return a list of names of files in DIRECTORY. |
327 | There are three optional arguments: | |
328 | If FULL is non-nil, return absolute file names. Otherwise return names | |
329 | that are relative to the specified directory. | |
330 | If MATCH is non-nil, mention only file names that match the regexp MATCH. | |
331 | If NOSORT is non-nil, the list is not sorted--its order is unpredictable. | |
332 | NOSORT is useful if you plan to sort the result yourself. */) | |
333 | (directory, full, match, nosort) | |
4424b255 GV |
334 | Lisp_Object directory, full, match, nosort; |
335 | { | |
336 | Lisp_Object handler; | |
4ece81a6 | 337 | directory = Fexpand_file_name (directory, Qnil); |
4424b255 GV |
338 | |
339 | /* If the file name has special constructs in it, | |
340 | call the corresponding file handler. */ | |
341 | handler = Ffind_file_name_handler (directory, Qdirectory_files); | |
342 | if (!NILP (handler)) | |
6b61353c KH |
343 | return call5 (handler, Qdirectory_files, directory, |
344 | full, match, nosort); | |
4424b255 | 345 | |
6b61353c | 346 | return directory_files_internal (directory, full, match, nosort, 0, Qnil); |
4424b255 GV |
347 | } |
348 | ||
335c5470 | 349 | DEFUN ("directory-files-and-attributes", Fdirectory_files_and_attributes, |
6b61353c | 350 | Sdirectory_files_and_attributes, 1, 5, 0, |
335c5470 | 351 | doc: /* Return a list of names of files and their attributes in DIRECTORY. |
6b61353c | 352 | There are four optional arguments: |
335c5470 PJ |
353 | If FULL is non-nil, return absolute file names. Otherwise return names |
354 | that are relative to the specified directory. | |
355 | If MATCH is non-nil, mention only file names that match the regexp MATCH. | |
356 | If NOSORT is non-nil, the list is not sorted--its order is unpredictable. | |
6b61353c KH |
357 | NOSORT is useful if you plan to sort the result yourself. |
358 | ID-FORMAT specifies the preferred format of attributes uid and gid, see | |
6c5665e9 EZ |
359 | `file-attributes' for further documentation. |
360 | On MS-Windows, performance depends on `w32-get-true-file-attributes', | |
361 | which see. */) | |
6b61353c KH |
362 | (directory, full, match, nosort, id_format) |
363 | Lisp_Object directory, full, match, nosort, id_format; | |
4424b255 GV |
364 | { |
365 | Lisp_Object handler; | |
4ece81a6 | 366 | directory = Fexpand_file_name (directory, Qnil); |
4424b255 GV |
367 | |
368 | /* If the file name has special constructs in it, | |
369 | call the corresponding file handler. */ | |
370 | handler = Ffind_file_name_handler (directory, Qdirectory_files_and_attributes); | |
371 | if (!NILP (handler)) | |
6b61353c KH |
372 | return call6 (handler, Qdirectory_files_and_attributes, |
373 | directory, full, match, nosort, id_format); | |
4424b255 | 374 | |
6b61353c | 375 | return directory_files_internal (directory, full, match, nosort, 1, id_format); |
4424b255 GV |
376 | } |
377 | ||
14d55bce RS |
378 | \f |
379 | Lisp_Object file_name_completion (); | |
380 | ||
381 | DEFUN ("file-name-completion", Ffile_name_completion, Sfile_name_completion, | |
abfb1932 | 382 | 2, 3, 0, |
335c5470 PJ |
383 | doc: /* Complete file name FILE in directory DIRECTORY. |
384 | Returns the longest string | |
385 | common to all file names in DIRECTORY that start with FILE. | |
386 | If there is only one and FILE matches it exactly, returns t. | |
2f60660a | 387 | Returns nil if DIRECTORY contains no name starting with FILE. |
335c5470 | 388 | |
b6ce54d6 RS |
389 | If PREDICATE is non-nil, call PREDICATE with each possible |
390 | completion (in absolute form) and ignore it if PREDICATE returns nil. | |
391 | ||
335c5470 PJ |
392 | This function ignores some of the possible completions as |
393 | determined by the variable `completion-ignored-extensions', which see. */) | |
abfb1932 RS |
394 | (file, directory, predicate) |
395 | Lisp_Object file, directory, predicate; | |
14d55bce | 396 | { |
32f4334d | 397 | Lisp_Object handler; |
32f4334d | 398 | |
8436e231 | 399 | /* If the directory name has special constructs in it, |
32f4334d | 400 | call the corresponding file handler. */ |
23bd240f | 401 | handler = Ffind_file_name_handler (directory, Qfile_name_completion); |
32f4334d | 402 | if (!NILP (handler)) |
abfb1932 | 403 | return call4 (handler, Qfile_name_completion, file, directory, predicate); |
32f4334d | 404 | |
8436e231 RS |
405 | /* If the file name has special constructs in it, |
406 | call the corresponding file handler. */ | |
407 | handler = Ffind_file_name_handler (file, Qfile_name_completion); | |
408 | if (!NILP (handler)) | |
abfb1932 | 409 | return call4 (handler, Qfile_name_completion, file, directory, predicate); |
8436e231 | 410 | |
abfb1932 | 411 | return file_name_completion (file, directory, 0, 0, predicate); |
14d55bce RS |
412 | } |
413 | ||
414 | DEFUN ("file-name-all-completions", Ffile_name_all_completions, | |
335c5470 PJ |
415 | Sfile_name_all_completions, 2, 2, 0, |
416 | doc: /* Return a list of all completions of file name FILE in directory DIRECTORY. | |
417 | These are all file names in directory DIRECTORY which begin with FILE. */) | |
418 | (file, directory) | |
23bd240f | 419 | Lisp_Object file, directory; |
14d55bce | 420 | { |
32f4334d RS |
421 | Lisp_Object handler; |
422 | ||
8436e231 | 423 | /* If the directory name has special constructs in it, |
32f4334d | 424 | call the corresponding file handler. */ |
23bd240f | 425 | handler = Ffind_file_name_handler (directory, Qfile_name_all_completions); |
32f4334d | 426 | if (!NILP (handler)) |
23bd240f | 427 | return call3 (handler, Qfile_name_all_completions, file, directory); |
32f4334d | 428 | |
8436e231 RS |
429 | /* If the file name has special constructs in it, |
430 | call the corresponding file handler. */ | |
431 | handler = Ffind_file_name_handler (file, Qfile_name_all_completions); | |
432 | if (!NILP (handler)) | |
23bd240f | 433 | return call3 (handler, Qfile_name_all_completions, file, directory); |
8436e231 | 434 | |
abfb1932 | 435 | return file_name_completion (file, directory, 1, 0, Qnil); |
14d55bce RS |
436 | } |
437 | ||
dfcf069d | 438 | static int file_name_completion_stat (); |
01bb4018 | 439 | Lisp_Object Qdefault_directory; |
dfcf069d | 440 | |
14d55bce | 441 | Lisp_Object |
abfb1932 | 442 | file_name_completion (file, dirname, all_flag, ver_flag, predicate) |
14d55bce RS |
443 | Lisp_Object file, dirname; |
444 | int all_flag, ver_flag; | |
abfb1932 | 445 | Lisp_Object predicate; |
14d55bce RS |
446 | { |
447 | DIR *d; | |
3271a8f5 | 448 | int bestmatchsize = 0; |
14d55bce | 449 | int matchcount = 0; |
abfb1932 RS |
450 | /* If ALL_FLAG is 1, BESTMATCH is the list of all matches, decoded. |
451 | If ALL_FLAG is 0, BESTMATCH is either nil | |
452 | or the best match so far, not decoded. */ | |
14d55bce | 453 | Lisp_Object bestmatch, tem, elt, name; |
24c2a54f RS |
454 | Lisp_Object encoded_file; |
455 | Lisp_Object encoded_dir; | |
14d55bce RS |
456 | struct stat st; |
457 | int directoryp; | |
3271a8f5 SM |
458 | /* If includeall is zero, exclude files in completion-ignored-extensions as |
459 | well as "." and "..". Until shown otherwise, assume we can't exclude | |
460 | anything. */ | |
461 | int includeall = 1; | |
aed13378 | 462 | int count = SPECPDL_INDEX (); |
24c2a54f | 463 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
3fcc88cc | 464 | |
6bbd7a29 GM |
465 | elt = Qnil; |
466 | ||
b7826503 | 467 | CHECK_STRING (file); |
14d55bce | 468 | |
128ecc89 RS |
469 | #ifdef FILE_SYSTEM_CASE |
470 | file = FILE_SYSTEM_CASE (file); | |
471 | #endif | |
14d55bce | 472 | bestmatch = Qnil; |
24c2a54f RS |
473 | encoded_file = encoded_dir = Qnil; |
474 | GCPRO5 (file, dirname, bestmatch, encoded_file, encoded_dir); | |
3fcc88cc | 475 | dirname = Fexpand_file_name (dirname, Qnil); |
01bb4018 | 476 | specbind (Qdefault_directory, dirname); |
14d55bce | 477 | |
24c2a54f RS |
478 | /* Do completion on the encoded file name |
479 | because the other names in the directory are (we presume) | |
480 | encoded likewise. We decode the completed string at the end. */ | |
2a54a229 SM |
481 | /* Actually, this is not quite true any more: we do most of the completion |
482 | work with decoded file names, but we still do some filtering based | |
483 | on the encoded file name. */ | |
6c8b4f07 | 484 | encoded_file = STRING_MULTIBYTE (file) ? ENCODE_FILE (file) : file; |
24c2a54f RS |
485 | |
486 | encoded_dir = ENCODE_FILE (dirname); | |
487 | ||
3271a8f5 SM |
488 | BLOCK_INPUT; |
489 | d = opendir (SDATA (Fdirectory_file_name (encoded_dir))); | |
490 | UNBLOCK_INPUT; | |
491 | if (!d) | |
492 | report_file_error ("Opening directory", Fcons (dirname, Qnil)); | |
14d55bce | 493 | |
3271a8f5 SM |
494 | record_unwind_protect (directory_files_internal_unwind, |
495 | make_save_value (d, 0)); | |
14d55bce | 496 | |
3271a8f5 SM |
497 | /* Loop reading blocks */ |
498 | /* (att3b compiler bug requires do a null comparison this way) */ | |
499 | while (1) | |
14d55bce | 500 | { |
3271a8f5 SM |
501 | DIRENTRY *dp; |
502 | int len; | |
503 | int canexclude = 0; | |
14d55bce | 504 | |
3271a8f5 SM |
505 | errno = 0; |
506 | dp = readdir (d); | |
507 | if (dp == NULL && (0 | |
9d291bdf | 508 | # ifdef EAGAIN |
3271a8f5 | 509 | || errno == EAGAIN |
9d291bdf SM |
510 | # endif |
511 | # ifdef EINTR | |
3271a8f5 | 512 | || errno == EINTR |
9d291bdf | 513 | # endif |
3271a8f5 SM |
514 | )) |
515 | { QUIT; continue; } | |
9d291bdf | 516 | |
3271a8f5 | 517 | if (!dp) break; |
14d55bce | 518 | |
3271a8f5 | 519 | len = NAMLEN (dp); |
14d55bce | 520 | |
3271a8f5 SM |
521 | QUIT; |
522 | if (! DIRENTRY_NONEMPTY (dp) | |
523 | || len < SCHARS (encoded_file) | |
524 | || 0 <= scmp (dp->d_name, SDATA (encoded_file), | |
525 | SCHARS (encoded_file))) | |
526 | continue; | |
14d55bce | 527 | |
3271a8f5 SM |
528 | if (file_name_completion_stat (encoded_dir, dp, &st) < 0) |
529 | continue; | |
14d55bce | 530 | |
3271a8f5 SM |
531 | directoryp = ((st.st_mode & S_IFMT) == S_IFDIR); |
532 | tem = Qnil; | |
533 | /* If all_flag is set, always include all. | |
534 | It would not actually be helpful to the user to ignore any possible | |
535 | completions when making a list of them. */ | |
536 | if (!all_flag) | |
537 | { | |
538 | int skip; | |
539 | if (directoryp) | |
ad456ad4 RS |
540 | { |
541 | #ifndef TRIVIAL_DIRECTORY_ENTRY | |
542 | #define TRIVIAL_DIRECTORY_ENTRY(n) (!strcmp (n, ".") || !strcmp (n, "..")) | |
543 | #endif | |
abfb1932 RS |
544 | /* "." and ".." are never interesting as completions, and are |
545 | actually in the way in a directory with only one file. */ | |
3271a8f5 SM |
546 | if (TRIVIAL_DIRECTORY_ENTRY (dp->d_name)) |
547 | canexclude = 1; | |
548 | else if (len > SCHARS (encoded_file)) | |
d013f29b EZ |
549 | /* Ignore directories if they match an element of |
550 | completion-ignored-extensions which ends in a slash. */ | |
551 | for (tem = Vcompletion_ignored_extensions; | |
552 | CONSP (tem); tem = XCDR (tem)) | |
553 | { | |
554 | int elt_len; | |
2a54a229 | 555 | unsigned char *p1; |
d013f29b EZ |
556 | |
557 | elt = XCAR (tem); | |
558 | if (!STRINGP (elt)) | |
559 | continue; | |
a74aaa9d EZ |
560 | /* Need to encode ELT, since scmp compares unibyte |
561 | strings only. */ | |
562 | elt = ENCODE_FILE (elt); | |
d5db4077 | 563 | elt_len = SCHARS (elt) - 1; /* -1 for trailing / */ |
7a8d465a | 564 | if (elt_len <= 0) |
d013f29b | 565 | continue; |
d5db4077 | 566 | p1 = SDATA (elt); |
d013f29b EZ |
567 | if (p1[elt_len] != '/') |
568 | continue; | |
569 | skip = len - elt_len; | |
570 | if (skip < 0) | |
571 | continue; | |
572 | ||
573 | if (0 <= scmp (dp->d_name + skip, p1, elt_len)) | |
574 | continue; | |
575 | break; | |
576 | } | |
ad456ad4 RS |
577 | } |
578 | else | |
3271a8f5 | 579 | { |
14d55bce RS |
580 | /* Compare extensions-to-be-ignored against end of this file name */ |
581 | /* if name is not an exact match against specified string */ | |
3271a8f5 | 582 | if (len > SCHARS (encoded_file)) |
14d55bce RS |
583 | /* and exit this for loop if a match is found */ |
584 | for (tem = Vcompletion_ignored_extensions; | |
70949dac | 585 | CONSP (tem); tem = XCDR (tem)) |
14d55bce | 586 | { |
70949dac | 587 | elt = XCAR (tem); |
88cf1852 | 588 | if (!STRINGP (elt)) continue; |
a74aaa9d EZ |
589 | /* Need to encode ELT, since scmp compares unibyte |
590 | strings only. */ | |
591 | elt = ENCODE_FILE (elt); | |
d5db4077 | 592 | skip = len - SCHARS (elt); |
14d55bce RS |
593 | if (skip < 0) continue; |
594 | ||
595 | if (0 <= scmp (dp->d_name + skip, | |
d5db4077 KR |
596 | SDATA (elt), |
597 | SCHARS (elt))) | |
14d55bce RS |
598 | continue; |
599 | break; | |
600 | } | |
601 | } | |
602 | ||
f676868d KH |
603 | /* If an ignored-extensions match was found, |
604 | don't process this name as a completion. */ | |
3271a8f5 SM |
605 | if (CONSP (tem)) |
606 | canexclude = 1; | |
f676868d | 607 | |
3271a8f5 SM |
608 | if (!includeall && canexclude) |
609 | /* We're not including all files and this file can be excluded. */ | |
610 | continue; | |
9c691c00 | 611 | |
3271a8f5 SM |
612 | if (includeall && !canexclude) |
613 | { /* If we have one non-excludable file, we want to exclude the | |
614 | excudable files. */ | |
615 | includeall = 0; | |
616 | /* Throw away any previous excludable match found. */ | |
617 | bestmatch = Qnil; | |
618 | bestmatchsize = 0; | |
619 | matchcount = 0; | |
f676868d | 620 | } |
3271a8f5 SM |
621 | } |
622 | /* FIXME: If we move this `decode' earlier we can eliminate | |
623 | the repeated ENCODE_FILE on Vcompletion_ignored_extensions. */ | |
624 | name = make_unibyte_string (dp->d_name, len); | |
625 | name = DECODE_FILE (name); | |
626 | ||
627 | { | |
628 | Lisp_Object regexps; | |
629 | Lisp_Object zero; | |
630 | XSETFASTINT (zero, 0); | |
631 | ||
632 | /* Ignore this element if it fails to match all the regexps. */ | |
633 | for (regexps = Vcompletion_regexp_list; CONSP (regexps); | |
634 | regexps = XCDR (regexps)) | |
635 | if (fast_string_match (XCAR (regexps), name) < 0) | |
636 | break; | |
637 | if (CONSP (regexps)) | |
638 | continue; | |
639 | } | |
640 | ||
641 | /* This is a possible completion */ | |
642 | if (directoryp) | |
643 | /* This completion is a directory; make it end with '/'. */ | |
644 | name = Ffile_name_as_directory (name); | |
645 | ||
646 | /* Test the predicate, if any. */ | |
647 | if (!NILP (predicate)) | |
648 | { | |
649 | Lisp_Object val; | |
650 | struct gcpro gcpro1; | |
14d55bce | 651 | |
3271a8f5 SM |
652 | GCPRO1 (name); |
653 | val = call1 (predicate, name); | |
654 | UNGCPRO; | |
c4c52bb7 | 655 | |
3271a8f5 SM |
656 | if (NILP (val)) |
657 | continue; | |
658 | } | |
abfb1932 | 659 | |
3271a8f5 | 660 | /* Suitably record this match. */ |
14d55bce | 661 | |
3271a8f5 | 662 | matchcount++; |
f676868d | 663 | |
3271a8f5 SM |
664 | if (all_flag) |
665 | bestmatch = Fcons (name, bestmatch); | |
666 | else if (NILP (bestmatch)) | |
667 | { | |
668 | bestmatch = name; | |
669 | bestmatchsize = SCHARS (name); | |
670 | } | |
671 | else | |
672 | { | |
673 | Lisp_Object zero = make_number (0); | |
674 | /* FIXME: This is a copy of the code in Ftry_completion. */ | |
675 | int compare = min (bestmatchsize, SCHARS (name)); | |
676 | Lisp_Object tem | |
677 | = Fcompare_strings (bestmatch, zero, | |
678 | make_number (compare), | |
679 | name, zero, | |
680 | make_number (compare), | |
681 | completion_ignore_case ? Qt : Qnil); | |
682 | int matchsize | |
683 | = (EQ (tem, Qt) ? compare | |
684 | : XINT (tem) < 0 ? - XINT (tem) - 1 | |
685 | : XINT (tem) - 1); | |
686 | ||
687 | if (completion_ignore_case) | |
f676868d | 688 | { |
3271a8f5 SM |
689 | /* If this is an exact match except for case, |
690 | use it as the best match rather than one that is not | |
691 | an exact match. This way, we get the case pattern | |
692 | of the actual match. */ | |
693 | /* This tests that the current file is an exact match | |
694 | but BESTMATCH is not (it is too long). */ | |
695 | if ((matchsize == SCHARS (name) | |
696 | && matchsize + !!directoryp | |
697 | < SCHARS (bestmatch)) | |
698 | || | |
699 | /* If there is no exact match ignoring case, | |
700 | prefer a match that does not change the case | |
701 | of the input. */ | |
702 | /* If there is more than one exact match aside from | |
703 | case, and one of them is exact including case, | |
704 | prefer that one. */ | |
705 | /* This == checks that, of current file and BESTMATCH, | |
706 | either both or neither are exact. */ | |
707 | (((matchsize == SCHARS (name)) | |
708 | == | |
709 | (matchsize + !!directoryp == SCHARS (bestmatch))) | |
710 | && (tem = Fcompare_strings (name, zero, | |
711 | make_number (SCHARS (file)), | |
712 | file, zero, | |
713 | Qnil, | |
714 | Qnil), | |
715 | EQ (Qt, tem)) | |
716 | && (tem = Fcompare_strings (bestmatch, zero, | |
717 | make_number (SCHARS (file)), | |
718 | file, zero, | |
719 | Qnil, | |
720 | Qnil), | |
721 | ! EQ (Qt, tem)))) | |
722 | bestmatch = name; | |
14d55bce | 723 | } |
3271a8f5 | 724 | bestmatchsize = matchsize; |
14d55bce | 725 | } |
14d55bce RS |
726 | } |
727 | ||
3fcc88cc | 728 | UNGCPRO; |
3271a8f5 | 729 | /* This closes the directory. */ |
c3a3229c | 730 | bestmatch = unbind_to (count, bestmatch); |
14d55bce | 731 | |
265a9e55 | 732 | if (all_flag || NILP (bestmatch)) |
2a54a229 | 733 | return bestmatch; |
928b5acc SM |
734 | /* Return t if the supplied string is an exact match (counting case); |
735 | it does not require any change to be made. */ | |
736 | if (matchcount == 1 && !NILP (Fequal (bestmatch, file))) | |
14d55bce | 737 | return Qt; |
24c2a54f RS |
738 | bestmatch = Fsubstring (bestmatch, make_number (0), |
739 | make_number (bestmatchsize)); | |
24c2a54f | 740 | return bestmatch; |
14d55bce RS |
741 | } |
742 | ||
b3f04ced RS |
743 | /* Compare exactly LEN chars of strings at S1 and S2, |
744 | ignoring case if appropriate. | |
745 | Return -1 if strings match, | |
746 | else number of chars that match at the beginning. */ | |
747 | ||
748 | static int | |
749 | scmp (s1, s2, len) | |
750 | register unsigned char *s1, *s2; | |
751 | int len; | |
752 | { | |
753 | register int l = len; | |
754 | ||
755 | if (completion_ignore_case) | |
756 | { | |
757 | while (l && DOWNCASE (*s1++) == DOWNCASE (*s2++)) | |
758 | l--; | |
759 | } | |
760 | else | |
761 | { | |
762 | while (l && *s1++ == *s2++) | |
763 | l--; | |
764 | } | |
765 | if (l == 0) | |
766 | return -1; | |
767 | else | |
768 | return len - l; | |
769 | } | |
770 | ||
dfcf069d | 771 | static int |
14d55bce RS |
772 | file_name_completion_stat (dirname, dp, st_addr) |
773 | Lisp_Object dirname; | |
774 | DIRENTRY *dp; | |
775 | struct stat *st_addr; | |
776 | { | |
777 | int len = NAMLEN (dp); | |
d5db4077 | 778 | int pos = SCHARS (dirname); |
7e3cf34f | 779 | int value; |
14d55bce RS |
780 | char *fullname = (char *) alloca (len + pos + 2); |
781 | ||
04924ee3 RS |
782 | #ifdef MSDOS |
783 | #if __DJGPP__ > 1 | |
784 | /* Some fields of struct stat are *very* expensive to compute on MS-DOS, | |
785 | but aren't required here. Avoid computing the following fields: | |
786 | st_inode, st_size and st_nlink for directories, and the execute bits | |
787 | in st_mode for non-directory files with non-standard extensions. */ | |
788 | ||
789 | unsigned short save_djstat_flags = _djstat_flags; | |
790 | ||
791 | _djstat_flags = _STAT_INODE | _STAT_EXEC_MAGIC | _STAT_DIRSIZE; | |
792 | #endif /* __DJGPP__ > 1 */ | |
793 | #endif /* MSDOS */ | |
794 | ||
d5db4077 | 795 | bcopy (SDATA (dirname), fullname, pos); |
0b39d75d RS |
796 | if (!IS_DIRECTORY_SEP (fullname[pos - 1])) |
797 | fullname[pos++] = DIRECTORY_SEP; | |
14d55bce RS |
798 | |
799 | bcopy (dp->d_name, fullname + pos, len); | |
800 | fullname[pos + len] = 0; | |
801 | ||
a889bd0e | 802 | #ifdef S_IFLNK |
7e3cf34f RS |
803 | /* We want to return success if a link points to a nonexistent file, |
804 | but we want to return the status for what the link points to, | |
805 | in case it is a directory. */ | |
806 | value = lstat (fullname, st_addr); | |
807 | stat (fullname, st_addr); | |
808 | return value; | |
a889bd0e | 809 | #else |
04924ee3 RS |
810 | value = stat (fullname, st_addr); |
811 | #ifdef MSDOS | |
812 | #if __DJGPP__ > 1 | |
813 | _djstat_flags = save_djstat_flags; | |
814 | #endif /* __DJGPP__ > 1 */ | |
815 | #endif /* MSDOS */ | |
816 | return value; | |
817 | #endif /* S_IFLNK */ | |
14d55bce RS |
818 | } |
819 | \f | |
820 | Lisp_Object | |
821 | make_time (time) | |
e5124be7 | 822 | time_t time; |
14d55bce RS |
823 | { |
824 | return Fcons (make_number (time >> 16), | |
825 | Fcons (make_number (time & 0177777), Qnil)); | |
826 | } | |
827 | ||
8aaaec6b EZ |
828 | static char * |
829 | stat_uname (struct stat *st) | |
830 | { | |
831 | #ifdef WINDOWSNT | |
832 | return st->st_uname; | |
833 | #else | |
834 | struct passwd *pw = (struct passwd *) getpwuid (st->st_uid); | |
835 | ||
836 | if (pw) | |
837 | return pw->pw_name; | |
838 | else | |
839 | return NULL; | |
840 | #endif | |
841 | } | |
842 | ||
843 | static char * | |
844 | stat_gname (struct stat *st) | |
845 | { | |
846 | #ifdef WINDOWSNT | |
847 | return st->st_gname; | |
848 | #else | |
849 | struct group *gr = (struct group *) getgrgid (st->st_gid); | |
850 | ||
851 | if (gr) | |
852 | return gr->gr_name; | |
853 | else | |
854 | return NULL; | |
855 | #endif | |
856 | } | |
857 | ||
6b61353c | 858 | DEFUN ("file-attributes", Ffile_attributes, Sfile_attributes, 1, 2, 0, |
335c5470 PJ |
859 | doc: /* Return a list of attributes of file FILENAME. |
860 | Value is nil if specified file cannot be opened. | |
6b61353c KH |
861 | |
862 | ID-FORMAT specifies the preferred format of attributes uid and gid (see | |
863 | below) - valid values are 'string and 'integer. The latter is the default, | |
864 | but we plan to change that, so you should specify a non-nil value for | |
865 | ID-FORMAT if you use the returned uid or gid. | |
866 | ||
867 | Elements of the attribute list are: | |
335c5470 PJ |
868 | 0. t for directory, string (name linked to) for symbolic link, or nil. |
869 | 1. Number of links to file. | |
6b61353c KH |
870 | 2. File uid as a string or an integer. If a string value cannot be |
871 | looked up, the integer value is returned. | |
872 | 3. File gid, likewise. | |
335c5470 PJ |
873 | 4. Last access time, as a list of two integers. |
874 | First integer has high-order 16 bits of time, second has low 16 bits. | |
875 | 5. Last modification time, likewise. | |
876 | 6. Last status change time, likewise. | |
877 | 7. Size in bytes. | |
878 | This is a floating point number if the size is too large for an integer. | |
879 | 8. File modes, as a string of ten letters or dashes as in ls -l. | |
e0f24100 | 880 | 9. t if file's gid would change if file were deleted and recreated. |
335c5470 | 881 | 10. inode number. If inode number is larger than the Emacs integer, |
e058f331 EZ |
882 | but still fits into a 32-bit number, this is a cons cell containing two |
883 | integers: first the high part, then the low 16 bits. If the inode number | |
884 | is wider than 32 bits, this is a cons cell containing three integers: | |
885 | first the high 24 bits, then middle 24 bits, and finally the low 16 bits. | |
335c5470 | 886 | 11. Device number. If it is larger than the Emacs integer, this is |
6c5665e9 EZ |
887 | a cons cell, similar to the inode number. |
888 | ||
889 | On MS-Windows, performance depends on `w32-get-true-file-attributes', | |
890 | which see. */) | |
6b61353c KH |
891 | (filename, id_format) |
892 | Lisp_Object filename, id_format; | |
14d55bce RS |
893 | { |
894 | Lisp_Object values[12]; | |
24c2a54f | 895 | Lisp_Object encoded; |
14d55bce | 896 | struct stat s; |
0a974c85 | 897 | #if defined (BSD4_2) || defined (BSD4_3) |
b3edfc9b | 898 | Lisp_Object dirname; |
14d55bce | 899 | struct stat sdir; |
b3edfc9b | 900 | #endif |
14d55bce | 901 | char modes[10]; |
32f4334d | 902 | Lisp_Object handler; |
7435aef8 | 903 | struct gcpro gcpro1; |
1cab27d2 | 904 | EMACS_INT ino, uid, gid; |
8aaaec6b | 905 | char *uname, *gname; |
14d55bce RS |
906 | |
907 | filename = Fexpand_file_name (filename, Qnil); | |
32f4334d RS |
908 | |
909 | /* If the file name has special constructs in it, | |
910 | call the corresponding file handler. */ | |
a617e913 | 911 | handler = Ffind_file_name_handler (filename, Qfile_attributes); |
32f4334d | 912 | if (!NILP (handler)) |
6b61353c KH |
913 | { /* Only pass the extra arg if it is used to help backward compatibility |
914 | with old file handlers which do not implement the new arg. --Stef */ | |
915 | if (NILP (id_format)) | |
916 | return call2 (handler, Qfile_attributes, filename); | |
917 | else | |
918 | return call3 (handler, Qfile_attributes, filename, id_format); | |
919 | } | |
32f4334d | 920 | |
7435aef8 | 921 | GCPRO1 (filename); |
24c2a54f | 922 | encoded = ENCODE_FILE (filename); |
7435aef8 | 923 | UNGCPRO; |
24c2a54f | 924 | |
d5db4077 | 925 | if (lstat (SDATA (encoded), &s) < 0) |
14d55bce RS |
926 | return Qnil; |
927 | ||
928 | switch (s.st_mode & S_IFMT) | |
929 | { | |
930 | default: | |
931 | values[0] = Qnil; break; | |
932 | case S_IFDIR: | |
933 | values[0] = Qt; break; | |
934 | #ifdef S_IFLNK | |
935 | case S_IFLNK: | |
936 | values[0] = Ffile_symlink_p (filename); break; | |
937 | #endif | |
938 | } | |
939 | values[1] = make_number (s.st_nlink); | |
1cab27d2 EZ |
940 | uid = s.st_uid; |
941 | gid = s.st_gid; | |
6b61353c KH |
942 | if (NILP (id_format) || EQ (id_format, Qinteger)) |
943 | { | |
1cab27d2 EZ |
944 | values[2] = make_fixnum_or_float (uid); |
945 | values[3] = make_fixnum_or_float (gid); | |
6b61353c KH |
946 | } |
947 | else | |
948 | { | |
8c8a7c58 | 949 | BLOCK_INPUT; |
8aaaec6b EZ |
950 | uname = stat_uname (&s); |
951 | values[2] = (uname ? build_string (uname) | |
1cab27d2 | 952 | : make_fixnum_or_float (uid)); |
8aaaec6b EZ |
953 | gname = stat_gname (&s); |
954 | values[3] = (gname ? build_string (gname) | |
1cab27d2 | 955 | : make_fixnum_or_float (gid)); |
8c8a7c58 | 956 | UNBLOCK_INPUT; |
6b61353c | 957 | } |
14d55bce RS |
958 | values[4] = make_time (s.st_atime); |
959 | values[5] = make_time (s.st_mtime); | |
960 | values[6] = make_time (s.st_ctime); | |
68c45bf0 | 961 | values[7] = make_number (s.st_size); |
cb1846b4 | 962 | /* If the size is out of range for an integer, return a float. */ |
60fc6069 | 963 | if (XINT (values[7]) != s.st_size) |
cb1846b4 | 964 | values[7] = make_float ((double)s.st_size); |
4bc12672 JR |
965 | /* If the size is negative, and its type is long, convert it back to |
966 | positive. */ | |
967 | if (s.st_size < 0 && sizeof (s.st_size) == sizeof (long)) | |
968 | values[7] = make_float ((double) ((unsigned long) s.st_size)); | |
969 | ||
14d55bce RS |
970 | filemodestring (&s, modes); |
971 | values[8] = make_string (modes, 10); | |
0a974c85 | 972 | #if defined (BSD4_2) || defined (BSD4_3) /* file gid will be dir gid */ |
14d55bce | 973 | dirname = Ffile_name_directory (filename); |
24c2a54f RS |
974 | if (! NILP (dirname)) |
975 | encoded = ENCODE_FILE (dirname); | |
d5db4077 | 976 | if (! NILP (dirname) && stat (SDATA (encoded), &sdir) == 0) |
01388a3d | 977 | values[9] = (sdir.st_gid != s.st_gid) ? Qt : Qnil; |
14d55bce RS |
978 | else /* if we can't tell, assume worst */ |
979 | values[9] = Qt; | |
980 | #else /* file gid will be egid */ | |
01388a3d | 981 | values[9] = (s.st_gid != getegid ()) ? Qt : Qnil; |
14d55bce | 982 | #endif /* BSD4_2 (or BSD4_3) */ |
b55445d6 | 983 | /* Shut up GCC warnings in FIXNUM_OVERFLOW_P below. */ |
e058f331 EZ |
984 | if (sizeof (s.st_ino) > sizeof (ino)) |
985 | ino = (EMACS_INT)(s.st_ino & 0xffffffff); | |
986 | else | |
987 | ino = s.st_ino; | |
988 | if (!FIXNUM_OVERFLOW_P (ino) | |
989 | && (sizeof (s.st_ino) <= sizeof (ino) || (s.st_ino & ~INTMASK) == 0)) | |
990 | /* Keep the most common cases as integers. */ | |
991 | values[10] = make_number (ino); | |
992 | else if (sizeof (s.st_ino) <= sizeof (ino) | |
993 | || ((s.st_ino >> 16) & ~INTMASK) == 0) | |
4c637faa RS |
994 | /* To allow inode numbers larger than VALBITS, separate the bottom |
995 | 16 bits. */ | |
e058f331 EZ |
996 | values[10] = Fcons (make_number ((EMACS_INT)(s.st_ino >> 16)), |
997 | make_number ((EMACS_INT)(s.st_ino & 0xffff))); | |
4c637faa | 998 | else |
e058f331 EZ |
999 | { |
1000 | /* To allow inode numbers beyond 32 bits, separate into 2 24-bit | |
1001 | high parts and a 16-bit bottom part. */ | |
1002 | EMACS_INT high_ino = s.st_ino >> 32; | |
1003 | EMACS_INT low_ino = s.st_ino & 0xffffffff; | |
1004 | ||
1005 | values[10] = Fcons (make_number (high_ino >> 8), | |
1006 | Fcons (make_number (((high_ino & 0xff) << 16) | |
1007 | + (low_ino >> 16)), | |
1008 | make_number (low_ino & 0xffff))); | |
1009 | } | |
68c45bf0 | 1010 | |
7412d429 EZ |
1011 | /* Likewise for device, but don't let it become negative. We used |
1012 | to use FIXNUM_OVERFLOW_P here, but that won't catch large | |
1013 | positive numbers such as 0xFFEEDDCC. */ | |
1014 | if ((EMACS_INT)s.st_dev < 0 | |
1015 | || (EMACS_INT)s.st_dev > MOST_POSITIVE_FIXNUM) | |
68c45bf0 PE |
1016 | values[11] = Fcons (make_number (s.st_dev >> 16), |
1017 | make_number (s.st_dev & 0xffff)); | |
1018 | else | |
1019 | values[11] = make_number (s.st_dev); | |
1020 | ||
14d55bce RS |
1021 | return Flist (sizeof(values) / sizeof(values[0]), values); |
1022 | } | |
4424b255 GV |
1023 | |
1024 | DEFUN ("file-attributes-lessp", Ffile_attributes_lessp, Sfile_attributes_lessp, 2, 2, 0, | |
335c5470 PJ |
1025 | doc: /* Return t if first arg file attributes list is less than second. |
1026 | Comparison is in lexicographic order and case is significant. */) | |
1027 | (f1, f2) | |
4424b255 GV |
1028 | Lisp_Object f1, f2; |
1029 | { | |
1030 | return Fstring_lessp (Fcar (f1), Fcar (f2)); | |
1031 | } | |
14d55bce | 1032 | \f |
dfcf069d | 1033 | void |
14d55bce RS |
1034 | syms_of_dired () |
1035 | { | |
32f4334d | 1036 | Qdirectory_files = intern ("directory-files"); |
4424b255 | 1037 | Qdirectory_files_and_attributes = intern ("directory-files-and-attributes"); |
32f4334d RS |
1038 | Qfile_name_completion = intern ("file-name-completion"); |
1039 | Qfile_name_all_completions = intern ("file-name-all-completions"); | |
434e6714 | 1040 | Qfile_attributes = intern ("file-attributes"); |
4424b255 | 1041 | Qfile_attributes_lessp = intern ("file-attributes-lessp"); |
01bb4018 | 1042 | Qdefault_directory = intern ("default-directory"); |
32f4334d | 1043 | |
a2d3836c | 1044 | staticpro (&Qdirectory_files); |
4424b255 | 1045 | staticpro (&Qdirectory_files_and_attributes); |
a2d3836c EN |
1046 | staticpro (&Qfile_name_completion); |
1047 | staticpro (&Qfile_name_all_completions); | |
1048 | staticpro (&Qfile_attributes); | |
4424b255 | 1049 | staticpro (&Qfile_attributes_lessp); |
01bb4018 | 1050 | staticpro (&Qdefault_directory); |
a2d3836c | 1051 | |
14d55bce | 1052 | defsubr (&Sdirectory_files); |
4424b255 | 1053 | defsubr (&Sdirectory_files_and_attributes); |
14d55bce | 1054 | defsubr (&Sfile_name_completion); |
14d55bce RS |
1055 | defsubr (&Sfile_name_all_completions); |
1056 | defsubr (&Sfile_attributes); | |
4424b255 | 1057 | defsubr (&Sfile_attributes_lessp); |
14d55bce | 1058 | |
14d55bce | 1059 | DEFVAR_LISP ("completion-ignored-extensions", &Vcompletion_ignored_extensions, |
407a52c4 LT |
1060 | doc: /* Completion ignores file names ending in any string in this list. |
1061 | It does not ignore them if all possible completions end in one of | |
1062 | these strings or when displaying a list of completions. | |
1063 | It ignores directory names if they match any string in this list which | |
1064 | ends in a slash. */); | |
14d55bce RS |
1065 | Vcompletion_ignored_extensions = Qnil; |
1066 | } | |
6b61353c KH |
1067 | |
1068 | /* arch-tag: 1ac8deca-4d8f-4d41-ade9-089154d98c03 | |
1069 | (do not change this comment) */ |