Commit | Line | Data |
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570d7624 | 1 | /* File IO for GNU Emacs. |
199607e4 | 2 | Copyright (C) 1985,86,87,88,93,94,95,96 Free Software Foundation, Inc. |
570d7624 JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
4746118a | 8 | the Free Software Foundation; either version 2, or (at your option) |
570d7624 JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
570d7624 | 20 | |
18160b98 | 21 | #include <config.h> |
570d7624 | 22 | |
bb369dc6 RS |
23 | #if defined (USG5) || defined (BSD_SYSTEM) || defined (LINUX) |
24 | #include <fcntl.h> | |
25 | #endif | |
26 | ||
570d7624 JB |
27 | #include <sys/types.h> |
28 | #include <sys/stat.h> | |
bfb61299 | 29 | |
29beb080 RS |
30 | #ifdef HAVE_UNISTD_H |
31 | #include <unistd.h> | |
32 | #endif | |
33 | ||
f73b0ada BF |
34 | #if !defined (S_ISLNK) && defined (S_IFLNK) |
35 | # define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) | |
36 | #endif | |
37 | ||
bb369dc6 RS |
38 | #if !defined (S_ISFIFO) && defined (S_IFIFO) |
39 | # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) | |
40 | #endif | |
41 | ||
f73b0ada BF |
42 | #if !defined (S_ISREG) && defined (S_IFREG) |
43 | # define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) | |
44 | #endif | |
45 | ||
bfb61299 | 46 | #ifdef VMS |
de5bf5d3 | 47 | #include "vms-pwd.h" |
bfb61299 | 48 | #else |
570d7624 | 49 | #include <pwd.h> |
bfb61299 JB |
50 | #endif |
51 | ||
4c3c22f3 RS |
52 | #ifdef MSDOS |
53 | #include "msdos.h" | |
54 | #include <sys/param.h> | |
01369dc7 RS |
55 | #if __DJGPP__ >= 2 |
56 | #include <fcntl.h> | |
57 | #include <string.h> | |
58 | #endif | |
4c3c22f3 RS |
59 | #endif |
60 | ||
570d7624 | 61 | #include <ctype.h> |
bfb61299 JB |
62 | |
63 | #ifdef VMS | |
3d9f5ce2 | 64 | #include "vmsdir.h" |
bfb61299 JB |
65 | #include <perror.h> |
66 | #include <stddef.h> | |
67 | #include <string.h> | |
bfb61299 JB |
68 | #endif |
69 | ||
570d7624 JB |
70 | #include <errno.h> |
71 | ||
bfb61299 | 72 | #ifndef vax11c |
570d7624 | 73 | extern int errno; |
570d7624 JB |
74 | #endif |
75 | ||
ce97267f | 76 | extern char *strerror (); |
570d7624 JB |
77 | |
78 | #ifdef APOLLO | |
79 | #include <sys/time.h> | |
80 | #endif | |
81 | ||
6e23c83e JB |
82 | #ifndef USG |
83 | #ifndef VMS | |
84 | #ifndef BSD4_1 | |
5e570b75 | 85 | #ifndef WINDOWSNT |
6e23c83e JB |
86 | #define HAVE_FSYNC |
87 | #endif | |
88 | #endif | |
89 | #endif | |
5e570b75 | 90 | #endif |
6e23c83e | 91 | |
570d7624 | 92 | #include "lisp.h" |
8d4e077b | 93 | #include "intervals.h" |
570d7624 JB |
94 | #include "buffer.h" |
95 | #include "window.h" | |
96 | ||
5e570b75 RS |
97 | #ifdef WINDOWSNT |
98 | #define NOMINMAX 1 | |
99 | #include <windows.h> | |
100 | #include <stdlib.h> | |
101 | #include <fcntl.h> | |
102 | #endif /* not WINDOWSNT */ | |
103 | ||
199607e4 RS |
104 | #ifdef DOS_NT |
105 | #define CORRECT_DIR_SEPS(s) \ | |
106 | do { if ('/' == DIRECTORY_SEP) dostounix_filename (s); \ | |
107 | else unixtodos_filename (s); \ | |
108 | } while (0) | |
109 | /* On Windows, drive letters must be alphabetic - on DOS, the Netware | |
110 | redirector allows the six letters between 'Z' and 'a' as well. */ | |
111 | #ifdef MSDOS | |
112 | #define IS_DRIVE(x) ((x) >= 'A' && (x) <= 'z') | |
113 | #endif | |
114 | #ifdef WINDOWSNT | |
115 | #define IS_DRIVE(x) isalpha (x) | |
116 | #endif | |
f54b565c MB |
117 | /* Need to lower-case the drive letter, or else expanded |
118 | filenames will sometimes compare inequal, because | |
119 | `expand-file-name' doesn't always down-case the drive letter. */ | |
120 | #define DRIVE_LETTER(x) (tolower (x)) | |
199607e4 RS |
121 | #endif |
122 | ||
570d7624 | 123 | #ifdef VMS |
570d7624 JB |
124 | #include <file.h> |
125 | #include <rmsdef.h> | |
126 | #include <fab.h> | |
127 | #include <nam.h> | |
128 | #endif | |
129 | ||
de5bf5d3 | 130 | #include "systime.h" |
570d7624 JB |
131 | |
132 | #ifdef HPUX | |
133 | #include <netio.h> | |
9b7828a5 | 134 | #ifndef HPUX8 |
47e7b9e5 | 135 | #ifndef HPUX9 |
570d7624 JB |
136 | #include <errnet.h> |
137 | #endif | |
9b7828a5 | 138 | #endif |
47e7b9e5 | 139 | #endif |
570d7624 JB |
140 | |
141 | #ifndef O_WRONLY | |
142 | #define O_WRONLY 1 | |
143 | #endif | |
144 | ||
4018b5ef RS |
145 | #ifndef O_RDONLY |
146 | #define O_RDONLY 0 | |
147 | #endif | |
148 | ||
570d7624 JB |
149 | #define min(a, b) ((a) < (b) ? (a) : (b)) |
150 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
151 | ||
152 | /* Nonzero during writing of auto-save files */ | |
153 | int auto_saving; | |
154 | ||
155 | /* Set by auto_save_1 to mode of original file so Fwrite_region will create | |
156 | a new file with the same mode as the original */ | |
157 | int auto_save_mode_bits; | |
158 | ||
199607e4 | 159 | /* Alist of elements (REGEXP . HANDLER) for file names |
32f4334d RS |
160 | whose I/O is done with a special handler. */ |
161 | Lisp_Object Vfile_name_handler_alist; | |
162 | ||
0d420e88 BG |
163 | /* Format for auto-save files */ |
164 | Lisp_Object Vauto_save_file_format; | |
165 | ||
166 | /* Lisp functions for translating file formats */ | |
167 | Lisp_Object Qformat_decode, Qformat_annotate_function; | |
168 | ||
d6a3cc15 RS |
169 | /* Functions to be called to process text properties in inserted file. */ |
170 | Lisp_Object Vafter_insert_file_functions; | |
171 | ||
172 | /* Functions to be called to create text property annotations for file. */ | |
173 | Lisp_Object Vwrite_region_annotate_functions; | |
174 | ||
6fc6f94b RS |
175 | /* During build_annotations, each time an annotation function is called, |
176 | this holds the annotations made by the previous functions. */ | |
177 | Lisp_Object Vwrite_region_annotations_so_far; | |
178 | ||
e54d3b5d RS |
179 | /* File name in which we write a list of all our auto save files. */ |
180 | Lisp_Object Vauto_save_list_file_name; | |
181 | ||
570d7624 JB |
182 | /* Nonzero means, when reading a filename in the minibuffer, |
183 | start out by inserting the default directory into the minibuffer. */ | |
184 | int insert_default_directory; | |
185 | ||
186 | /* On VMS, nonzero means write new files with record format stmlf. | |
187 | Zero means use var format. */ | |
188 | int vms_stmlf_recfm; | |
189 | ||
199607e4 RS |
190 | /* On NT, specifies the directory separator character, used (eg.) when |
191 | expanding file names. This can be bound to / or \. */ | |
192 | Lisp_Object Vdirectory_sep_char; | |
193 | ||
84f6296a RS |
194 | extern Lisp_Object Vuser_login_name; |
195 | ||
196 | extern int minibuf_level; | |
197 | ||
a65970a0 RS |
198 | /* These variables describe handlers that have "already" had a chance |
199 | to handle the current operation. | |
200 | ||
201 | Vinhibit_file_name_handlers is a list of file name handlers. | |
202 | Vinhibit_file_name_operation is the operation being handled. | |
203 | If we try to handle that operation, we ignore those handlers. */ | |
204 | ||
82c2d839 | 205 | static Lisp_Object Vinhibit_file_name_handlers; |
a65970a0 | 206 | static Lisp_Object Vinhibit_file_name_operation; |
82c2d839 | 207 | |
570d7624 JB |
208 | Lisp_Object Qfile_error, Qfile_already_exists; |
209 | ||
15c65264 RS |
210 | Lisp_Object Qfile_name_history; |
211 | ||
d6a3cc15 RS |
212 | Lisp_Object Qcar_less_than_car; |
213 | ||
570d7624 JB |
214 | report_file_error (string, data) |
215 | char *string; | |
216 | Lisp_Object data; | |
217 | { | |
218 | Lisp_Object errstring; | |
219 | ||
a1f17b2d | 220 | errstring = build_string (strerror (errno)); |
570d7624 JB |
221 | |
222 | /* System error messages are capitalized. Downcase the initial | |
223 | unless it is followed by a slash. */ | |
224 | if (XSTRING (errstring)->data[1] != '/') | |
225 | XSTRING (errstring)->data[0] = DOWNCASE (XSTRING (errstring)->data[0]); | |
226 | ||
227 | while (1) | |
228 | Fsignal (Qfile_error, | |
229 | Fcons (build_string (string), Fcons (errstring, data))); | |
230 | } | |
b5148e85 RS |
231 | |
232 | close_file_unwind (fd) | |
233 | Lisp_Object fd; | |
234 | { | |
235 | close (XFASTINT (fd)); | |
236 | } | |
a1d2b64a RS |
237 | |
238 | /* Restore point, having saved it as a marker. */ | |
239 | ||
240 | restore_point_unwind (location) | |
199607e4 | 241 | Lisp_Object location; |
a1d2b64a RS |
242 | { |
243 | SET_PT (marker_position (location)); | |
244 | Fset_marker (location, Qnil, Qnil); | |
245 | } | |
570d7624 | 246 | \f |
0bf2eed2 | 247 | Lisp_Object Qexpand_file_name; |
273e0829 | 248 | Lisp_Object Qsubstitute_in_file_name; |
0bf2eed2 RS |
249 | Lisp_Object Qdirectory_file_name; |
250 | Lisp_Object Qfile_name_directory; | |
251 | Lisp_Object Qfile_name_nondirectory; | |
642ef245 | 252 | Lisp_Object Qunhandled_file_name_directory; |
0bf2eed2 | 253 | Lisp_Object Qfile_name_as_directory; |
32f4334d | 254 | Lisp_Object Qcopy_file; |
a6e6e718 | 255 | Lisp_Object Qmake_directory_internal; |
32f4334d RS |
256 | Lisp_Object Qdelete_directory; |
257 | Lisp_Object Qdelete_file; | |
258 | Lisp_Object Qrename_file; | |
259 | Lisp_Object Qadd_name_to_file; | |
260 | Lisp_Object Qmake_symbolic_link; | |
261 | Lisp_Object Qfile_exists_p; | |
262 | Lisp_Object Qfile_executable_p; | |
263 | Lisp_Object Qfile_readable_p; | |
32f4334d | 264 | Lisp_Object Qfile_writable_p; |
1f8653eb RS |
265 | Lisp_Object Qfile_symlink_p; |
266 | Lisp_Object Qaccess_file; | |
32f4334d | 267 | Lisp_Object Qfile_directory_p; |
adedc71d | 268 | Lisp_Object Qfile_regular_p; |
32f4334d RS |
269 | Lisp_Object Qfile_accessible_directory_p; |
270 | Lisp_Object Qfile_modes; | |
271 | Lisp_Object Qset_file_modes; | |
272 | Lisp_Object Qfile_newer_than_file_p; | |
273 | Lisp_Object Qinsert_file_contents; | |
274 | Lisp_Object Qwrite_region; | |
275 | Lisp_Object Qverify_visited_file_modtime; | |
3ec46acd | 276 | Lisp_Object Qset_visited_file_modtime; |
32f4334d | 277 | |
49307295 KH |
278 | DEFUN ("find-file-name-handler", Ffind_file_name_handler, Sfind_file_name_handler, 2, 2, 0, |
279 | "Return FILENAME's handler function for OPERATION, if it has one.\n\ | |
642ef245 JB |
280 | Otherwise, return nil.\n\ |
281 | A file name is handled if one of the regular expressions in\n\ | |
82c2d839 | 282 | `file-name-handler-alist' matches it.\n\n\ |
a65970a0 RS |
283 | If OPERATION equals `inhibit-file-name-operation', then we ignore\n\ |
284 | any handlers that are members of `inhibit-file-name-handlers',\n\ | |
285 | but we still do run any other handlers. This lets handlers\n\ | |
82c2d839 | 286 | use the standard functions without calling themselves recursively.") |
49307295 KH |
287 | (filename, operation) |
288 | Lisp_Object filename, operation; | |
32f4334d | 289 | { |
642ef245 | 290 | /* This function must not munge the match data. */ |
a65970a0 | 291 | Lisp_Object chain, inhibited_handlers; |
642ef245 | 292 | |
e4432095 JB |
293 | CHECK_STRING (filename, 0); |
294 | ||
a65970a0 RS |
295 | if (EQ (operation, Vinhibit_file_name_operation)) |
296 | inhibited_handlers = Vinhibit_file_name_handlers; | |
297 | else | |
298 | inhibited_handlers = Qnil; | |
82c2d839 | 299 | |
93c30b5f | 300 | for (chain = Vfile_name_handler_alist; CONSP (chain); |
32f4334d RS |
301 | chain = XCONS (chain)->cdr) |
302 | { | |
303 | Lisp_Object elt; | |
304 | elt = XCONS (chain)->car; | |
93c30b5f | 305 | if (CONSP (elt)) |
32f4334d RS |
306 | { |
307 | Lisp_Object string; | |
308 | string = XCONS (elt)->car; | |
93c30b5f | 309 | if (STRINGP (string) && fast_string_match (string, filename) >= 0) |
a65970a0 RS |
310 | { |
311 | Lisp_Object handler, tem; | |
312 | ||
313 | handler = XCONS (elt)->cdr; | |
314 | tem = Fmemq (handler, inhibited_handlers); | |
315 | if (NILP (tem)) | |
316 | return handler; | |
317 | } | |
32f4334d | 318 | } |
642ef245 JB |
319 | |
320 | QUIT; | |
32f4334d RS |
321 | } |
322 | return Qnil; | |
323 | } | |
324 | \f | |
570d7624 JB |
325 | DEFUN ("file-name-directory", Ffile_name_directory, Sfile_name_directory, |
326 | 1, 1, 0, | |
3b7f6e60 EN |
327 | "Return the directory component in file name FILENAME.\n\ |
328 | Return nil if FILENAME does not include a directory.\n\ | |
570d7624 JB |
329 | Otherwise return a directory spec.\n\ |
330 | Given a Unix syntax file name, returns a string ending in slash;\n\ | |
331 | on VMS, perhaps instead a string ending in `:', `]' or `>'.") | |
3b7f6e60 EN |
332 | (filename) |
333 | Lisp_Object filename; | |
570d7624 JB |
334 | { |
335 | register unsigned char *beg; | |
336 | register unsigned char *p; | |
0bf2eed2 | 337 | Lisp_Object handler; |
570d7624 | 338 | |
3b7f6e60 | 339 | CHECK_STRING (filename, 0); |
570d7624 | 340 | |
0bf2eed2 RS |
341 | /* If the file name has special constructs in it, |
342 | call the corresponding file handler. */ | |
3b7f6e60 | 343 | handler = Ffind_file_name_handler (filename, Qfile_name_directory); |
0bf2eed2 | 344 | if (!NILP (handler)) |
3b7f6e60 | 345 | return call2 (handler, Qfile_name_directory, filename); |
0bf2eed2 | 346 | |
4c3c22f3 | 347 | #ifdef FILE_SYSTEM_CASE |
3b7f6e60 | 348 | filename = FILE_SYSTEM_CASE (filename); |
4c3c22f3 | 349 | #endif |
3b7f6e60 | 350 | beg = XSTRING (filename)->data; |
199607e4 RS |
351 | #ifdef DOS_NT |
352 | beg = strcpy (alloca (strlen (beg) + 1), beg); | |
353 | #endif | |
3b7f6e60 | 354 | p = beg + XSTRING (filename)->size; |
570d7624 | 355 | |
199607e4 | 356 | while (p != beg && !IS_DIRECTORY_SEP (p[-1]) |
570d7624 JB |
357 | #ifdef VMS |
358 | && p[-1] != ':' && p[-1] != ']' && p[-1] != '>' | |
359 | #endif /* VMS */ | |
199607e4 RS |
360 | #ifdef DOS_NT |
361 | /* only recognise drive specifier at beginning */ | |
362 | && !(p[-1] == ':' && p == beg + 2) | |
363 | #endif | |
570d7624 JB |
364 | ) p--; |
365 | ||
366 | if (p == beg) | |
367 | return Qnil; | |
5e570b75 | 368 | #ifdef DOS_NT |
4c3c22f3 RS |
369 | /* Expansion of "c:" to drive and default directory. */ |
370 | if (p == beg + 2 && beg[1] == ':') | |
371 | { | |
4c3c22f3 | 372 | /* MAXPATHLEN+1 is guaranteed to be enough space for getdefdir. */ |
199607e4 RS |
373 | unsigned char *res = alloca (MAXPATHLEN + 1); |
374 | if (getdefdir (toupper (*beg) - 'A' + 1, res)) | |
4c3c22f3 | 375 | { |
199607e4 | 376 | if (!IS_DIRECTORY_SEP (res[strlen (res) - 1])) |
4c3c22f3 RS |
377 | strcat (res, "/"); |
378 | beg = res; | |
379 | p = beg + strlen (beg); | |
380 | } | |
381 | } | |
199607e4 | 382 | CORRECT_DIR_SEPS (beg); |
5e570b75 | 383 | #endif /* DOS_NT */ |
570d7624 JB |
384 | return make_string (beg, p - beg); |
385 | } | |
386 | ||
387 | DEFUN ("file-name-nondirectory", Ffile_name_nondirectory, Sfile_name_nondirectory, | |
388 | 1, 1, 0, | |
3b7f6e60 | 389 | "Return file name FILENAME sans its directory.\n\ |
570d7624 JB |
390 | For example, in a Unix-syntax file name,\n\ |
391 | this is everything after the last slash,\n\ | |
392 | or the entire name if it contains no slash.") | |
3b7f6e60 EN |
393 | (filename) |
394 | Lisp_Object filename; | |
570d7624 JB |
395 | { |
396 | register unsigned char *beg, *p, *end; | |
0bf2eed2 | 397 | Lisp_Object handler; |
570d7624 | 398 | |
3b7f6e60 | 399 | CHECK_STRING (filename, 0); |
570d7624 | 400 | |
0bf2eed2 RS |
401 | /* If the file name has special constructs in it, |
402 | call the corresponding file handler. */ | |
3b7f6e60 | 403 | handler = Ffind_file_name_handler (filename, Qfile_name_nondirectory); |
0bf2eed2 | 404 | if (!NILP (handler)) |
3b7f6e60 | 405 | return call2 (handler, Qfile_name_nondirectory, filename); |
0bf2eed2 | 406 | |
3b7f6e60 EN |
407 | beg = XSTRING (filename)->data; |
408 | end = p = beg + XSTRING (filename)->size; | |
570d7624 | 409 | |
199607e4 | 410 | while (p != beg && !IS_DIRECTORY_SEP (p[-1]) |
570d7624 JB |
411 | #ifdef VMS |
412 | && p[-1] != ':' && p[-1] != ']' && p[-1] != '>' | |
413 | #endif /* VMS */ | |
199607e4 RS |
414 | #ifdef DOS_NT |
415 | /* only recognise drive specifier at beginning */ | |
416 | && !(p[-1] == ':' && p == beg + 2) | |
417 | #endif | |
570d7624 JB |
418 | ) p--; |
419 | ||
420 | return make_string (p, end - p); | |
421 | } | |
642ef245 JB |
422 | |
423 | DEFUN ("unhandled-file-name-directory", Funhandled_file_name_directory, Sunhandled_file_name_directory, 1, 1, 0, | |
424 | "Return a directly usable directory name somehow associated with FILENAME.\n\ | |
425 | A `directly usable' directory name is one that may be used without the\n\ | |
426 | intervention of any file handler.\n\ | |
427 | If FILENAME is a directly usable file itself, return\n\ | |
428 | (file-name-directory FILENAME).\n\ | |
429 | The `call-process' and `start-process' functions use this function to\n\ | |
430 | get a current directory to run processes in.") | |
431 | (filename) | |
432 | Lisp_Object filename; | |
433 | { | |
434 | Lisp_Object handler; | |
435 | ||
436 | /* If the file name has special constructs in it, | |
437 | call the corresponding file handler. */ | |
49307295 | 438 | handler = Ffind_file_name_handler (filename, Qunhandled_file_name_directory); |
642ef245 JB |
439 | if (!NILP (handler)) |
440 | return call2 (handler, Qunhandled_file_name_directory, filename); | |
441 | ||
442 | return Ffile_name_directory (filename); | |
443 | } | |
444 | ||
570d7624 JB |
445 | \f |
446 | char * | |
447 | file_name_as_directory (out, in) | |
448 | char *out, *in; | |
449 | { | |
450 | int size = strlen (in) - 1; | |
451 | ||
452 | strcpy (out, in); | |
453 | ||
454 | #ifdef VMS | |
455 | /* Is it already a directory string? */ | |
456 | if (in[size] == ':' || in[size] == ']' || in[size] == '>') | |
457 | return out; | |
458 | /* Is it a VMS directory file name? If so, hack VMS syntax. */ | |
459 | else if (! index (in, '/') | |
460 | && ((size > 3 && ! strcmp (&in[size - 3], ".DIR")) | |
461 | || (size > 3 && ! strcmp (&in[size - 3], ".dir")) | |
462 | || (size > 5 && (! strncmp (&in[size - 5], ".DIR", 4) | |
463 | || ! strncmp (&in[size - 5], ".dir", 4)) | |
464 | && (in[size - 1] == '.' || in[size - 1] == ';') | |
465 | && in[size] == '1'))) | |
466 | { | |
467 | register char *p, *dot; | |
468 | char brack; | |
469 | ||
470 | /* x.dir -> [.x] | |
471 | dir:x.dir --> dir:[x] | |
472 | dir:[x]y.dir --> dir:[x.y] */ | |
473 | p = in + size; | |
474 | while (p != in && *p != ':' && *p != '>' && *p != ']') p--; | |
475 | if (p != in) | |
476 | { | |
477 | strncpy (out, in, p - in); | |
478 | out[p - in] = '\0'; | |
479 | if (*p == ':') | |
480 | { | |
481 | brack = ']'; | |
482 | strcat (out, ":["); | |
483 | } | |
484 | else | |
485 | { | |
486 | brack = *p; | |
487 | strcat (out, "."); | |
488 | } | |
489 | p++; | |
490 | } | |
491 | else | |
492 | { | |
493 | brack = ']'; | |
494 | strcpy (out, "[."); | |
495 | } | |
bfb61299 JB |
496 | dot = index (p, '.'); |
497 | if (dot) | |
570d7624 JB |
498 | { |
499 | /* blindly remove any extension */ | |
500 | size = strlen (out) + (dot - p); | |
501 | strncat (out, p, dot - p); | |
502 | } | |
503 | else | |
504 | { | |
505 | strcat (out, p); | |
506 | size = strlen (out); | |
507 | } | |
508 | out[size++] = brack; | |
509 | out[size] = '\0'; | |
510 | } | |
511 | #else /* not VMS */ | |
512 | /* For Unix syntax, Append a slash if necessary */ | |
199607e4 | 513 | if (!IS_DIRECTORY_SEP (out[size])) |
5e570b75 RS |
514 | { |
515 | out[size + 1] = DIRECTORY_SEP; | |
516 | out[size + 2] = '\0'; | |
517 | } | |
199607e4 RS |
518 | #ifdef DOS_NT |
519 | CORRECT_DIR_SEPS (out); | |
520 | #endif | |
570d7624 JB |
521 | #endif /* not VMS */ |
522 | return out; | |
523 | } | |
524 | ||
525 | DEFUN ("file-name-as-directory", Ffile_name_as_directory, | |
526 | Sfile_name_as_directory, 1, 1, 0, | |
527 | "Return a string representing file FILENAME interpreted as a directory.\n\ | |
528 | This operation exists because a directory is also a file, but its name as\n\ | |
529 | a directory is different from its name as a file.\n\ | |
530 | The result can be used as the value of `default-directory'\n\ | |
531 | or passed as second argument to `expand-file-name'.\n\ | |
532 | For a Unix-syntax file name, just appends a slash.\n\ | |
533 | On VMS, converts \"[X]FOO.DIR\" to \"[X.FOO]\", etc.") | |
534 | (file) | |
535 | Lisp_Object file; | |
536 | { | |
537 | char *buf; | |
0bf2eed2 | 538 | Lisp_Object handler; |
570d7624 JB |
539 | |
540 | CHECK_STRING (file, 0); | |
265a9e55 | 541 | if (NILP (file)) |
570d7624 | 542 | return Qnil; |
0bf2eed2 RS |
543 | |
544 | /* If the file name has special constructs in it, | |
545 | call the corresponding file handler. */ | |
49307295 | 546 | handler = Ffind_file_name_handler (file, Qfile_name_as_directory); |
0bf2eed2 RS |
547 | if (!NILP (handler)) |
548 | return call2 (handler, Qfile_name_as_directory, file); | |
549 | ||
570d7624 JB |
550 | buf = (char *) alloca (XSTRING (file)->size + 10); |
551 | return build_string (file_name_as_directory (buf, XSTRING (file)->data)); | |
552 | } | |
553 | \f | |
554 | /* | |
555 | * Convert from directory name to filename. | |
556 | * On VMS: | |
557 | * xyzzy:[mukesh.emacs] => xyzzy:[mukesh]emacs.dir.1 | |
558 | * xyzzy:[mukesh] => xyzzy:[000000]mukesh.dir.1 | |
199607e4 | 559 | * On UNIX, it's simple: just make sure there isn't a terminating / |
570d7624 JB |
560 | |
561 | * Value is nonzero if the string output is different from the input. | |
562 | */ | |
563 | ||
564 | directory_file_name (src, dst) | |
565 | char *src, *dst; | |
566 | { | |
567 | long slen; | |
568 | #ifdef VMS | |
569 | long rlen; | |
570 | char * ptr, * rptr; | |
571 | char bracket; | |
572 | struct FAB fab = cc$rms_fab; | |
573 | struct NAM nam = cc$rms_nam; | |
574 | char esa[NAM$C_MAXRSS]; | |
575 | #endif /* VMS */ | |
576 | ||
577 | slen = strlen (src); | |
578 | #ifdef VMS | |
579 | if (! index (src, '/') | |
580 | && (src[slen - 1] == ']' | |
581 | || src[slen - 1] == ':' | |
582 | || src[slen - 1] == '>')) | |
583 | { | |
584 | /* VMS style - convert [x.y.z] to [x.y]z, [x] to [000000]x */ | |
585 | fab.fab$l_fna = src; | |
586 | fab.fab$b_fns = slen; | |
587 | fab.fab$l_nam = &nam; | |
588 | fab.fab$l_fop = FAB$M_NAM; | |
589 | ||
590 | nam.nam$l_esa = esa; | |
591 | nam.nam$b_ess = sizeof esa; | |
592 | nam.nam$b_nop |= NAM$M_SYNCHK; | |
593 | ||
594 | /* We call SYS$PARSE to handle such things as [--] for us. */ | |
199607e4 | 595 | if (SYS$PARSE (&fab, 0, 0) == RMS$_NORMAL) |
570d7624 JB |
596 | { |
597 | slen = nam.nam$b_esl; | |
598 | if (esa[slen - 1] == ';' && esa[slen - 2] == '.') | |
599 | slen -= 2; | |
600 | esa[slen] = '\0'; | |
601 | src = esa; | |
602 | } | |
603 | if (src[slen - 1] != ']' && src[slen - 1] != '>') | |
604 | { | |
605 | /* what about when we have logical_name:???? */ | |
606 | if (src[slen - 1] == ':') | |
5e570b75 | 607 | { /* Xlate logical name and see what we get */ |
570d7624 JB |
608 | ptr = strcpy (dst, src); /* upper case for getenv */ |
609 | while (*ptr) | |
610 | { | |
611 | if ('a' <= *ptr && *ptr <= 'z') | |
612 | *ptr -= 040; | |
613 | ptr++; | |
614 | } | |
5e570b75 | 615 | dst[slen - 1] = 0; /* remove colon */ |
570d7624 JB |
616 | if (!(src = egetenv (dst))) |
617 | return 0; | |
618 | /* should we jump to the beginning of this procedure? | |
619 | Good points: allows us to use logical names that xlate | |
620 | to Unix names, | |
621 | Bad points: can be a problem if we just translated to a device | |
622 | name... | |
623 | For now, I'll punt and always expect VMS names, and hope for | |
624 | the best! */ | |
625 | slen = strlen (src); | |
626 | if (src[slen - 1] != ']' && src[slen - 1] != '>') | |
627 | { /* no recursion here! */ | |
628 | strcpy (dst, src); | |
629 | return 0; | |
630 | } | |
631 | } | |
632 | else | |
5e570b75 | 633 | { /* not a directory spec */ |
570d7624 JB |
634 | strcpy (dst, src); |
635 | return 0; | |
636 | } | |
637 | } | |
638 | bracket = src[slen - 1]; | |
639 | ||
640 | /* If bracket is ']' or '>', bracket - 2 is the corresponding | |
641 | opening bracket. */ | |
bfb61299 JB |
642 | ptr = index (src, bracket - 2); |
643 | if (ptr == 0) | |
570d7624 JB |
644 | { /* no opening bracket */ |
645 | strcpy (dst, src); | |
646 | return 0; | |
647 | } | |
648 | if (!(rptr = rindex (src, '.'))) | |
649 | rptr = ptr; | |
650 | slen = rptr - src; | |
651 | strncpy (dst, src, slen); | |
652 | dst[slen] = '\0'; | |
653 | if (*rptr == '.') | |
654 | { | |
655 | dst[slen++] = bracket; | |
656 | dst[slen] = '\0'; | |
657 | } | |
658 | else | |
659 | { | |
660 | /* If we have the top-level of a rooted directory (i.e. xx:[000000]), | |
661 | then translate the device and recurse. */ | |
662 | if (dst[slen - 1] == ':' | |
5e570b75 | 663 | && dst[slen - 2] != ':' /* skip decnet nodes */ |
199607e4 | 664 | && strcmp (src + slen, "[000000]") == 0) |
570d7624 JB |
665 | { |
666 | dst[slen - 1] = '\0'; | |
667 | if ((ptr = egetenv (dst)) | |
668 | && (rlen = strlen (ptr) - 1) > 0 | |
669 | && (ptr[rlen] == ']' || ptr[rlen] == '>') | |
670 | && ptr[rlen - 1] == '.') | |
671 | { | |
72b21817 RS |
672 | char * buf = (char *) alloca (strlen (ptr) + 1); |
673 | strcpy (buf, ptr); | |
674 | buf[rlen - 1] = ']'; | |
675 | buf[rlen] = '\0'; | |
676 | return directory_file_name (buf, dst); | |
570d7624 JB |
677 | } |
678 | else | |
679 | dst[slen - 1] = ':'; | |
680 | } | |
681 | strcat (dst, "[000000]"); | |
682 | slen += 8; | |
683 | } | |
684 | rptr++; | |
685 | rlen = strlen (rptr) - 1; | |
686 | strncat (dst, rptr, rlen); | |
687 | dst[slen + rlen] = '\0'; | |
688 | strcat (dst, ".DIR.1"); | |
689 | return 1; | |
690 | } | |
691 | #endif /* VMS */ | |
692 | /* Process as Unix format: just remove any final slash. | |
693 | But leave "/" unchanged; do not change it to "". */ | |
694 | strcpy (dst, src); | |
125feee8 RS |
695 | #ifdef APOLLO |
696 | /* Handle // as root for apollo's. */ | |
697 | if ((slen > 2 && dst[slen - 1] == '/') | |
698 | || (slen > 1 && dst[0] != '/' && dst[slen - 1] == '/')) | |
699 | dst[slen - 1] = 0; | |
700 | #else | |
199607e4 | 701 | if (slen > 1 |
5e570b75 | 702 | && IS_DIRECTORY_SEP (dst[slen - 1]) |
4592782e RS |
703 | #ifdef DOS_NT |
704 | && !IS_ANY_SEP (dst[slen - 2]) | |
705 | #endif | |
706 | ) | |
570d7624 | 707 | dst[slen - 1] = 0; |
199607e4 RS |
708 | #endif |
709 | #ifdef DOS_NT | |
710 | CORRECT_DIR_SEPS (dst); | |
125feee8 | 711 | #endif |
570d7624 JB |
712 | return 1; |
713 | } | |
714 | ||
715 | DEFUN ("directory-file-name", Fdirectory_file_name, Sdirectory_file_name, | |
716 | 1, 1, 0, | |
3b7f6e60 EN |
717 | "Returns the file name of the directory named DIRECTORY.\n\ |
718 | This is the name of the file that holds the data for the directory DIRECTORY.\n\ | |
570d7624 JB |
719 | This operation exists because a directory is also a file, but its name as\n\ |
720 | a directory is different from its name as a file.\n\ | |
721 | In Unix-syntax, this function just removes the final slash.\n\ | |
722 | On VMS, given a VMS-syntax directory name such as \"[X.Y]\",\n\ | |
723 | it returns a file name such as \"[X]Y.DIR.1\".") | |
724 | (directory) | |
725 | Lisp_Object directory; | |
726 | { | |
727 | char *buf; | |
0bf2eed2 | 728 | Lisp_Object handler; |
570d7624 JB |
729 | |
730 | CHECK_STRING (directory, 0); | |
731 | ||
265a9e55 | 732 | if (NILP (directory)) |
570d7624 | 733 | return Qnil; |
0bf2eed2 RS |
734 | |
735 | /* If the file name has special constructs in it, | |
736 | call the corresponding file handler. */ | |
49307295 | 737 | handler = Ffind_file_name_handler (directory, Qdirectory_file_name); |
0bf2eed2 RS |
738 | if (!NILP (handler)) |
739 | return call2 (handler, Qdirectory_file_name, directory); | |
740 | ||
570d7624 JB |
741 | #ifdef VMS |
742 | /* 20 extra chars is insufficient for VMS, since we might perform a | |
743 | logical name translation. an equivalence string can be up to 255 | |
744 | chars long, so grab that much extra space... - sss */ | |
745 | buf = (char *) alloca (XSTRING (directory)->size + 20 + 255); | |
746 | #else | |
747 | buf = (char *) alloca (XSTRING (directory)->size + 20); | |
748 | #endif | |
749 | directory_file_name (XSTRING (directory)->data, buf); | |
750 | return build_string (buf); | |
751 | } | |
752 | ||
753 | DEFUN ("make-temp-name", Fmake_temp_name, Smake_temp_name, 1, 1, 0, | |
754 | "Generate temporary file name (string) starting with PREFIX (a string).\n\ | |
755 | The Emacs process number forms part of the result,\n\ | |
756 | so there is no danger of generating a name being used by another process.") | |
757 | (prefix) | |
758 | Lisp_Object prefix; | |
759 | { | |
760 | Lisp_Object val; | |
3a3bfb18 | 761 | #ifdef MSDOS |
ce6212a5 | 762 | /* Don't use too many characters of the restricted 8+3 DOS |
3a3bfb18 | 763 | filename space. */ |
ce6212a5 | 764 | val = concat2 (prefix, build_string ("a.XXX")); |
3a3bfb18 | 765 | #else |
570d7624 | 766 | val = concat2 (prefix, build_string ("XXXXXX")); |
3a3bfb18 | 767 | #endif |
570d7624 | 768 | mktemp (XSTRING (val)->data); |
199607e4 RS |
769 | #ifdef DOS_NT |
770 | CORRECT_DIR_SEPS (XSTRING (val)->data); | |
771 | #endif | |
570d7624 JB |
772 | return val; |
773 | } | |
774 | \f | |
775 | DEFUN ("expand-file-name", Fexpand_file_name, Sexpand_file_name, 1, 2, 0, | |
3b7f6e60 EN |
776 | "Convert filename NAME to absolute, and canonicalize it.\n\ |
777 | Second arg DEFAULT-DIRECTORY is directory to start with if NAME is relative\n\ | |
778 | (does not start with slash); if DEFAULT-DIRECTORY is nil or missing,\n\ | |
570d7624 | 779 | the current buffer's value of default-directory is used.\n\ |
199607e4 RS |
780 | File name components that are `.' are removed, and \n\ |
781 | so are file name components followed by `..', along with the `..' itself;\n\ | |
b72dea2a | 782 | note that these simplifications are done without checking the resulting\n\ |
199607e4 | 783 | file names in the file system.\n\ |
b72dea2a JB |
784 | An initial `~/' expands to your home directory.\n\ |
785 | An initial `~USER/' expands to USER's home directory.\n\ | |
570d7624 | 786 | See also the function `substitute-in-file-name'.") |
3b7f6e60 EN |
787 | (name, default_directory) |
788 | Lisp_Object name, default_directory; | |
570d7624 JB |
789 | { |
790 | unsigned char *nm; | |
199607e4 | 791 | |
570d7624 JB |
792 | register unsigned char *newdir, *p, *o; |
793 | int tlen; | |
794 | unsigned char *target; | |
795 | struct passwd *pw; | |
570d7624 JB |
796 | #ifdef VMS |
797 | unsigned char * colon = 0; | |
798 | unsigned char * close = 0; | |
799 | unsigned char * slash = 0; | |
800 | unsigned char * brack = 0; | |
801 | int lbrack = 0, rbrack = 0; | |
802 | int dots = 0; | |
803 | #endif /* VMS */ | |
5e570b75 | 804 | #ifdef DOS_NT |
199607e4 | 805 | int drive = 0; |
9a1dc3be | 806 | int collapse_newdir = 1; |
5e570b75 | 807 | #endif /* DOS_NT */ |
199607e4 | 808 | int length; |
0bf2eed2 | 809 | Lisp_Object handler; |
199607e4 | 810 | |
570d7624 JB |
811 | CHECK_STRING (name, 0); |
812 | ||
0bf2eed2 RS |
813 | /* If the file name has special constructs in it, |
814 | call the corresponding file handler. */ | |
49307295 | 815 | handler = Ffind_file_name_handler (name, Qexpand_file_name); |
0bf2eed2 | 816 | if (!NILP (handler)) |
3b7f6e60 | 817 | return call3 (handler, Qexpand_file_name, name, default_directory); |
58fc9587 | 818 | |
3b7f6e60 EN |
819 | /* Use the buffer's default-directory if DEFAULT_DIRECTORY is omitted. */ |
820 | if (NILP (default_directory)) | |
821 | default_directory = current_buffer->directory; | |
822 | CHECK_STRING (default_directory, 1); | |
58fc9587 | 823 | |
3b7f6e60 | 824 | if (!NILP (default_directory)) |
273e0829 | 825 | { |
3b7f6e60 | 826 | handler = Ffind_file_name_handler (default_directory, Qexpand_file_name); |
273e0829 | 827 | if (!NILP (handler)) |
3b7f6e60 | 828 | return call3 (handler, Qexpand_file_name, name, default_directory); |
273e0829 | 829 | } |
0bf2eed2 | 830 | |
3b7f6e60 | 831 | o = XSTRING (default_directory)->data; |
5e570b75 | 832 | |
3b7f6e60 | 833 | /* Make sure DEFAULT_DIRECTORY is properly expanded. |
f14b1c68 | 834 | It would be better to do this down below where we actually use |
3b7f6e60 | 835 | default_directory. Unfortunately, calling Fexpand_file_name recursively |
f14b1c68 JB |
836 | could invoke GC, and the strings might be relocated. This would |
837 | be annoying because we have pointers into strings lying around | |
838 | that would need adjusting, and people would add new pointers to | |
839 | the code and forget to adjust them, resulting in intermittent bugs. | |
4ad827c5 RS |
840 | Putting this call here avoids all that crud. |
841 | ||
842 | The EQ test avoids infinite recursion. */ | |
3b7f6e60 | 843 | if (! NILP (default_directory) && !EQ (default_directory, name) |
199607e4 RS |
844 | /* Save time in some common cases - as long as default_directory |
845 | is not relative, it can be canonicalized with name below (if it | |
846 | is needed at all) without requiring it to be expanded now. */ | |
01937013 | 847 | #ifdef DOS_NT |
199607e4 RS |
848 | /* Detect MSDOS file names with drive specifiers. */ |
849 | && ! (IS_DRIVE (o[0]) && (IS_DEVICE_SEP (o[1]) && IS_DIRECTORY_SEP (o[2]))) | |
850 | #ifdef WINDOWSNT | |
851 | /* Detect Windows file names in UNC format. */ | |
852 | && ! (IS_DIRECTORY_SEP (o[0]) && IS_DIRECTORY_SEP (o[1])) | |
01937013 | 853 | #endif |
199607e4 RS |
854 | #else /* not DOS_NT */ |
855 | /* Detect Unix absolute file names (/... alone is not absolute on | |
856 | DOS or Windows). */ | |
857 | && ! (IS_DIRECTORY_SEP (o[0])) | |
858 | #endif /* not DOS_NT */ | |
859 | ) | |
f14b1c68 JB |
860 | { |
861 | struct gcpro gcpro1; | |
862 | ||
863 | GCPRO1 (name); | |
3b7f6e60 | 864 | default_directory = Fexpand_file_name (default_directory, Qnil); |
f14b1c68 JB |
865 | UNGCPRO; |
866 | } | |
867 | ||
570d7624 JB |
868 | #ifdef VMS |
869 | /* Filenames on VMS are always upper case. */ | |
870 | name = Fupcase (name); | |
871 | #endif | |
4c3c22f3 RS |
872 | #ifdef FILE_SYSTEM_CASE |
873 | name = FILE_SYSTEM_CASE (name); | |
874 | #endif | |
570d7624 JB |
875 | |
876 | nm = XSTRING (name)->data; | |
a5a1cc06 | 877 | |
5e570b75 | 878 | #ifdef DOS_NT |
199607e4 RS |
879 | /* We will force directory separators to be either all \ or /, so make |
880 | a local copy to modify, even if there ends up being no change. */ | |
881 | nm = strcpy (alloca (strlen (nm) + 1), nm); | |
882 | ||
883 | /* Find and remove drive specifier if present; this makes nm absolute | |
884 | even if the rest of the name appears to be relative. */ | |
4c3c22f3 RS |
885 | { |
886 | unsigned char *colon = rindex (nm, ':'); | |
199607e4 | 887 | |
4c3c22f3 | 888 | if (colon) |
199607e4 RS |
889 | /* Only recognize colon as part of drive specifier if there is a |
890 | single alphabetic character preceeding the colon (and if the | |
891 | character before the drive letter, if present, is a directory | |
892 | separator); this is to support the remote system syntax used by | |
893 | ange-ftp, and the "po:username" syntax for POP mailboxes. */ | |
894 | look_again: | |
4c3c22f3 RS |
895 | if (nm == colon) |
896 | nm++; | |
199607e4 RS |
897 | else if (IS_DRIVE (colon[-1]) |
898 | && (colon == nm + 1 || IS_DIRECTORY_SEP (colon[-2]))) | |
4c3c22f3 | 899 | { |
3c455a3b | 900 | drive = colon[-1]; |
4c3c22f3 | 901 | nm = colon + 1; |
199607e4 RS |
902 | } |
903 | else | |
904 | { | |
905 | while (--colon >= nm) | |
906 | if (colon[0] == ':') | |
907 | goto look_again; | |
908 | } | |
4c3c22f3 | 909 | } |
5e570b75 | 910 | #endif /* DOS_NT */ |
4c3c22f3 | 911 | |
199607e4 RS |
912 | #ifdef WINDOWSNT |
913 | /* Discard any previous drive specifier if nm is now in UNC format. */ | |
914 | if (IS_DIRECTORY_SEP (nm[0]) && IS_DIRECTORY_SEP (nm[1])) | |
915 | { | |
916 | drive = 0; | |
917 | } | |
918 | #endif | |
919 | ||
920 | /* If nm is absolute, look for /./ or /../ sequences; if none are | |
921 | found, we can probably return right away. We will avoid allocating | |
922 | a new string if name is already fully expanded. */ | |
570d7624 | 923 | if ( |
5e570b75 | 924 | IS_DIRECTORY_SEP (nm[0]) |
199607e4 RS |
925 | #ifdef MSDOS |
926 | && drive | |
927 | #endif | |
928 | #ifdef WINDOWSNT | |
929 | && (drive || IS_DIRECTORY_SEP (nm[1])) | |
930 | #endif | |
570d7624 JB |
931 | #ifdef VMS |
932 | || index (nm, ':') | |
933 | #endif /* VMS */ | |
934 | ) | |
935 | { | |
f14b1c68 JB |
936 | /* If it turns out that the filename we want to return is just a |
937 | suffix of FILENAME, we don't need to go through and edit | |
938 | things; we just need to construct a new string using data | |
939 | starting at the middle of FILENAME. If we set lose to a | |
940 | non-zero value, that means we've discovered that we can't do | |
941 | that cool trick. */ | |
942 | int lose = 0; | |
943 | ||
570d7624 | 944 | p = nm; |
570d7624 JB |
945 | while (*p) |
946 | { | |
199607e4 | 947 | /* Since we know the name is absolute, we can assume that each |
c77d647e JB |
948 | element starts with a "/". */ |
949 | ||
c77d647e | 950 | /* "." and ".." are hairy. */ |
5e570b75 | 951 | if (IS_DIRECTORY_SEP (p[0]) |
c77d647e | 952 | && p[1] == '.' |
5e570b75 | 953 | && (IS_DIRECTORY_SEP (p[2]) |
c77d647e | 954 | || p[2] == 0 |
5e570b75 | 955 | || (p[2] == '.' && (IS_DIRECTORY_SEP (p[3]) |
c77d647e | 956 | || p[3] == 0)))) |
570d7624 JB |
957 | lose = 1; |
958 | #ifdef VMS | |
959 | if (p[0] == '\\') | |
960 | lose = 1; | |
961 | if (p[0] == '/') { | |
962 | /* if dev:[dir]/, move nm to / */ | |
963 | if (!slash && p > nm && (brack || colon)) { | |
964 | nm = (brack ? brack + 1 : colon + 1); | |
965 | lbrack = rbrack = 0; | |
966 | brack = 0; | |
967 | colon = 0; | |
968 | } | |
969 | slash = p; | |
970 | } | |
971 | if (p[0] == '-') | |
972 | #ifndef VMS4_4 | |
973 | /* VMS pre V4.4,convert '-'s in filenames. */ | |
974 | if (lbrack == rbrack) | |
975 | { | |
5e570b75 | 976 | if (dots < 2) /* this is to allow negative version numbers */ |
570d7624 JB |
977 | p[0] = '_'; |
978 | } | |
979 | else | |
980 | #endif /* VMS4_4 */ | |
981 | if (lbrack > rbrack && | |
982 | ((p[-1] == '.' || p[-1] == '[' || p[-1] == '<') && | |
983 | (p[1] == '.' || p[1] == ']' || p[1] == '>'))) | |
984 | lose = 1; | |
985 | #ifndef VMS4_4 | |
986 | else | |
987 | p[0] = '_'; | |
988 | #endif /* VMS4_4 */ | |
989 | /* count open brackets, reset close bracket pointer */ | |
990 | if (p[0] == '[' || p[0] == '<') | |
991 | lbrack++, brack = 0; | |
992 | /* count close brackets, set close bracket pointer */ | |
993 | if (p[0] == ']' || p[0] == '>') | |
994 | rbrack++, brack = p; | |
995 | /* detect ][ or >< */ | |
996 | if ((p[0] == ']' || p[0] == '>') && (p[1] == '[' || p[1] == '<')) | |
997 | lose = 1; | |
998 | if ((p[0] == ':' || p[0] == ']' || p[0] == '>') && p[1] == '~') | |
999 | nm = p + 1, lose = 1; | |
1000 | if (p[0] == ':' && (colon || slash)) | |
1001 | /* if dev1:[dir]dev2:, move nm to dev2: */ | |
1002 | if (brack) | |
1003 | { | |
1004 | nm = brack + 1; | |
1005 | brack = 0; | |
1006 | } | |
199607e4 | 1007 | /* if /name/dev:, move nm to dev: */ |
570d7624 JB |
1008 | else if (slash) |
1009 | nm = slash + 1; | |
1010 | /* if node::dev:, move colon following dev */ | |
1011 | else if (colon && colon[-1] == ':') | |
1012 | colon = p; | |
1013 | /* if dev1:dev2:, move nm to dev2: */ | |
1014 | else if (colon && colon[-1] != ':') | |
1015 | { | |
1016 | nm = colon + 1; | |
1017 | colon = 0; | |
1018 | } | |
1019 | if (p[0] == ':' && !colon) | |
1020 | { | |
1021 | if (p[1] == ':') | |
1022 | p++; | |
1023 | colon = p; | |
1024 | } | |
1025 | if (lbrack == rbrack) | |
1026 | if (p[0] == ';') | |
1027 | dots = 2; | |
1028 | else if (p[0] == '.') | |
1029 | dots++; | |
1030 | #endif /* VMS */ | |
1031 | p++; | |
1032 | } | |
1033 | if (!lose) | |
1034 | { | |
1035 | #ifdef VMS | |
1036 | if (index (nm, '/')) | |
1037 | return build_string (sys_translate_unix (nm)); | |
1038 | #endif /* VMS */ | |
199607e4 RS |
1039 | #ifdef DOS_NT |
1040 | /* Make sure directories are all separated with / or \ as | |
1041 | desired, but avoid allocation of a new string when not | |
1042 | required. */ | |
1043 | CORRECT_DIR_SEPS (nm); | |
1044 | #ifdef WINDOWSNT | |
1045 | if (IS_DIRECTORY_SEP (nm[1])) | |
1046 | { | |
1047 | if (strcmp (nm, XSTRING (name)->data) != 0) | |
1048 | name = build_string (nm); | |
1049 | } | |
1050 | else | |
1051 | #endif | |
1052 | /* drive must be set, so this is okay */ | |
1053 | if (strcmp (nm - 2, XSTRING (name)->data) != 0) | |
1054 | { | |
1055 | name = make_string (nm - 2, p - nm + 2); | |
f94988a7 | 1056 | XSTRING (name)->data[0] = DRIVE_LETTER (drive); |
199607e4 RS |
1057 | XSTRING (name)->data[1] = ':'; |
1058 | } | |
1059 | return name; | |
1060 | #else /* not DOS_NT */ | |
570d7624 JB |
1061 | if (nm == XSTRING (name)->data) |
1062 | return name; | |
1063 | return build_string (nm); | |
5e570b75 | 1064 | #endif /* not DOS_NT */ |
570d7624 JB |
1065 | } |
1066 | } | |
1067 | ||
199607e4 RS |
1068 | /* At this point, nm might or might not be an absolute file name. We |
1069 | need to expand ~ or ~user if present, otherwise prefix nm with | |
1070 | default_directory if nm is not absolute, and finally collapse /./ | |
1071 | and /foo/../ sequences. | |
1072 | ||
1073 | We set newdir to be the appropriate prefix if one is needed: | |
1074 | - the relevant user directory if nm starts with ~ or ~user | |
1075 | - the specified drive's working dir (DOS/NT only) if nm does not | |
1076 | start with / | |
1077 | - the value of default_directory. | |
1078 | ||
1079 | Note that these prefixes are not guaranteed to be absolute (except | |
1080 | for the working dir of a drive). Therefore, to ensure we always | |
1081 | return an absolute name, if the final prefix is not absolute we | |
1082 | append it to the current working directory. */ | |
570d7624 JB |
1083 | |
1084 | newdir = 0; | |
1085 | ||
1086 | if (nm[0] == '~') /* prefix ~ */ | |
c77d647e | 1087 | { |
5e570b75 | 1088 | if (IS_DIRECTORY_SEP (nm[1]) |
570d7624 | 1089 | #ifdef VMS |
c77d647e | 1090 | || nm[1] == ':' |
5e570b75 | 1091 | #endif /* VMS */ |
c77d647e JB |
1092 | || nm[1] == 0) /* ~ by itself */ |
1093 | { | |
1094 | if (!(newdir = (unsigned char *) egetenv ("HOME"))) | |
1095 | newdir = (unsigned char *) ""; | |
199607e4 | 1096 | nm++; |
5e570b75 | 1097 | #ifdef DOS_NT |
9a1dc3be | 1098 | collapse_newdir = 0; |
4c3c22f3 | 1099 | #endif |
570d7624 | 1100 | #ifdef VMS |
c77d647e | 1101 | nm++; /* Don't leave the slash in nm. */ |
5e570b75 | 1102 | #endif /* VMS */ |
c77d647e JB |
1103 | } |
1104 | else /* ~user/filename */ | |
1105 | { | |
5e570b75 | 1106 | for (p = nm; *p && (!IS_DIRECTORY_SEP (*p) |
570d7624 | 1107 | #ifdef VMS |
c77d647e | 1108 | && *p != ':' |
5e570b75 | 1109 | #endif /* VMS */ |
c77d647e JB |
1110 | ); p++); |
1111 | o = (unsigned char *) alloca (p - nm + 1); | |
1112 | bcopy ((char *) nm, o, p - nm); | |
1113 | o [p - nm] = 0; | |
1114 | ||
1115 | pw = (struct passwd *) getpwnam (o + 1); | |
1116 | if (pw) | |
1117 | { | |
1118 | newdir = (unsigned char *) pw -> pw_dir; | |
570d7624 | 1119 | #ifdef VMS |
c77d647e | 1120 | nm = p + 1; /* skip the terminator */ |
570d7624 | 1121 | #else |
c77d647e | 1122 | nm = p; |
199607e4 | 1123 | #ifdef DOS_NT |
9a1dc3be | 1124 | collapse_newdir = 0; |
199607e4 | 1125 | #endif |
5e570b75 | 1126 | #endif /* VMS */ |
c77d647e | 1127 | } |
e5d77022 | 1128 | |
c77d647e JB |
1129 | /* If we don't find a user of that name, leave the name |
1130 | unchanged; don't move nm forward to p. */ | |
1131 | } | |
1132 | } | |
570d7624 | 1133 | |
5e570b75 | 1134 | #ifdef DOS_NT |
199607e4 RS |
1135 | /* On DOS and Windows, nm is absolute if a drive name was specified; |
1136 | use the drive's current directory as the prefix if needed. */ | |
1137 | if (!newdir && drive) | |
1138 | { | |
1139 | /* Get default directory if needed to make nm absolute. */ | |
1140 | if (!IS_DIRECTORY_SEP (nm[0])) | |
1141 | { | |
1142 | newdir = alloca (MAXPATHLEN + 1); | |
1143 | if (!getdefdir (toupper (drive) - 'A' + 1, newdir)) | |
1144 | newdir = NULL; | |
1145 | } | |
1146 | if (!newdir) | |
1147 | { | |
1148 | /* Either nm starts with /, or drive isn't mounted. */ | |
1149 | newdir = alloca (4); | |
f94988a7 | 1150 | newdir[0] = DRIVE_LETTER (drive); |
199607e4 RS |
1151 | newdir[1] = ':'; |
1152 | newdir[2] = '/'; | |
1153 | newdir[3] = 0; | |
1154 | } | |
1155 | } | |
5e570b75 | 1156 | #endif /* DOS_NT */ |
199607e4 RS |
1157 | |
1158 | /* Finally, if no prefix has been specified and nm is not absolute, | |
1159 | then it must be expanded relative to default_directory. */ | |
1160 | ||
34097368 | 1161 | if (1 |
199607e4 RS |
1162 | #ifndef DOS_NT |
1163 | /* /... alone is not absolute on DOS and Windows. */ | |
34097368 | 1164 | && !IS_DIRECTORY_SEP (nm[0]) |
199607e4 RS |
1165 | #endif |
1166 | #ifdef WINDOWSNT | |
34097368 | 1167 | && !(IS_DIRECTORY_SEP (nm[0]) && IS_DIRECTORY_SEP (nm[1])) |
199607e4 RS |
1168 | #endif |
1169 | #ifdef VMS | |
1170 | && !index (nm, ':') | |
1171 | #endif | |
570d7624 JB |
1172 | && !newdir) |
1173 | { | |
3b7f6e60 | 1174 | newdir = XSTRING (default_directory)->data; |
570d7624 JB |
1175 | } |
1176 | ||
5e570b75 | 1177 | #ifdef DOS_NT |
199607e4 RS |
1178 | if (newdir) |
1179 | { | |
1180 | /* First ensure newdir is an absolute name. */ | |
1181 | if ( | |
1182 | /* Detect MSDOS file names with drive specifiers. */ | |
1183 | ! (IS_DRIVE (newdir[0]) | |
1184 | && IS_DEVICE_SEP (newdir[1]) && IS_DIRECTORY_SEP (newdir[2])) | |
1185 | #ifdef WINDOWSNT | |
1186 | /* Detect Windows file names in UNC format. */ | |
1187 | && ! (IS_DIRECTORY_SEP (newdir[0]) && IS_DIRECTORY_SEP (newdir[1])) | |
1188 | #endif | |
1189 | ) | |
1190 | { | |
1191 | /* Effectively, let newdir be (expand-file-name newdir cwd). | |
1192 | Because of the admonition against calling expand-file-name | |
1193 | when we have pointers into lisp strings, we accomplish this | |
1194 | indirectly by prepending newdir to nm if necessary, and using | |
1195 | cwd (or the wd of newdir's drive) as the new newdir. */ | |
1196 | ||
1197 | if (IS_DRIVE (newdir[0]) && newdir[1] == ':') | |
1198 | { | |
1199 | drive = newdir[0]; | |
1200 | newdir += 2; | |
1201 | } | |
1202 | if (!IS_DIRECTORY_SEP (nm[0])) | |
1203 | { | |
1204 | char * tmp = alloca (strlen (newdir) + strlen (nm) + 2); | |
1205 | file_name_as_directory (tmp, newdir); | |
1206 | strcat (tmp, nm); | |
1207 | nm = tmp; | |
1208 | } | |
1209 | newdir = alloca (MAXPATHLEN + 1); | |
1210 | if (drive) | |
1211 | { | |
1212 | if (!getdefdir (toupper (drive) - 'A' + 1, newdir)) | |
1213 | newdir = "/"; | |
1214 | } | |
1215 | else | |
1216 | getwd (newdir); | |
1217 | } | |
1218 | ||
1219 | /* Strip off drive name from prefix, if present. */ | |
1220 | if (IS_DRIVE (newdir[0]) && newdir[1] == ':') | |
1221 | { | |
1222 | drive = newdir[0]; | |
1223 | newdir += 2; | |
1224 | } | |
1225 | ||
1226 | /* Keep only a prefix from newdir if nm starts with slash | |
1227 | (//server/share for UNC, nothing otherwise). */ | |
9a1dc3be | 1228 | if (IS_DIRECTORY_SEP (nm[0]) && collapse_newdir) |
199607e4 RS |
1229 | { |
1230 | #ifdef WINDOWSNT | |
1231 | if (IS_DIRECTORY_SEP (newdir[0]) && IS_DIRECTORY_SEP (newdir[1])) | |
1232 | { | |
1233 | newdir = strcpy (alloca (strlen (newdir) + 1), newdir); | |
1234 | p = newdir + 2; | |
1235 | while (*p && !IS_DIRECTORY_SEP (*p)) p++; | |
1236 | p++; | |
1237 | while (*p && !IS_DIRECTORY_SEP (*p)) p++; | |
1238 | *p = 0; | |
1239 | } | |
1240 | else | |
1241 | #endif | |
1242 | newdir = ""; | |
1243 | } | |
1244 | } | |
5e570b75 | 1245 | #endif /* DOS_NT */ |
199607e4 RS |
1246 | |
1247 | if (newdir) | |
bfb61299 | 1248 | { |
57676091 RS |
1249 | /* Get rid of any slash at the end of newdir, unless newdir is |
1250 | just // (an incomplete UNC name). */ | |
199607e4 | 1251 | length = strlen (newdir); |
57676091 RS |
1252 | if (IS_DIRECTORY_SEP (newdir[length - 1]) |
1253 | #ifdef WINDOWSNT | |
1254 | && !(length == 2 && IS_DIRECTORY_SEP (newdir[0])) | |
1255 | #endif | |
1256 | ) | |
bfb61299 JB |
1257 | { |
1258 | unsigned char *temp = (unsigned char *) alloca (length); | |
1259 | bcopy (newdir, temp, length - 1); | |
1260 | temp[length - 1] = 0; | |
1261 | newdir = temp; | |
1262 | } | |
1263 | tlen = length + 1; | |
1264 | } | |
1265 | else | |
1266 | tlen = 0; | |
570d7624 | 1267 | |
bfb61299 JB |
1268 | /* Now concatenate the directory and name to new space in the stack frame */ |
1269 | tlen += strlen (nm) + 1; | |
5e570b75 | 1270 | #ifdef DOS_NT |
199607e4 | 1271 | /* Add reserved space for drive name. (The Microsoft x86 compiler |
5e570b75 RS |
1272 | produces incorrect code if the following two lines are combined.) */ |
1273 | target = (unsigned char *) alloca (tlen + 2); | |
1274 | target += 2; | |
1275 | #else /* not DOS_NT */ | |
570d7624 | 1276 | target = (unsigned char *) alloca (tlen); |
5e570b75 | 1277 | #endif /* not DOS_NT */ |
570d7624 JB |
1278 | *target = 0; |
1279 | ||
1280 | if (newdir) | |
1281 | { | |
1282 | #ifndef VMS | |
5e570b75 | 1283 | if (nm[0] == 0 || IS_DIRECTORY_SEP (nm[0])) |
570d7624 JB |
1284 | strcpy (target, newdir); |
1285 | else | |
1286 | #endif | |
c77d647e | 1287 | file_name_as_directory (target, newdir); |
570d7624 JB |
1288 | } |
1289 | ||
1290 | strcat (target, nm); | |
1291 | #ifdef VMS | |
1292 | if (index (target, '/')) | |
1293 | strcpy (target, sys_translate_unix (target)); | |
1294 | #endif /* VMS */ | |
1295 | ||
199607e4 RS |
1296 | /* ASSERT (IS_DIRECTORY_SEP (target[0])) if not VMS */ |
1297 | ||
c77d647e | 1298 | /* Now canonicalize by removing /. and /foo/.. if they appear. */ |
570d7624 JB |
1299 | |
1300 | p = target; | |
1301 | o = target; | |
1302 | ||
1303 | while (*p) | |
1304 | { | |
1305 | #ifdef VMS | |
1306 | if (*p != ']' && *p != '>' && *p != '-') | |
1307 | { | |
1308 | if (*p == '\\') | |
1309 | p++; | |
1310 | *o++ = *p++; | |
1311 | } | |
1312 | else if ((p[0] == ']' || p[0] == '>') && p[0] == p[1] + 2) | |
1313 | /* brackets are offset from each other by 2 */ | |
1314 | { | |
1315 | p += 2; | |
1316 | if (*p != '.' && *p != '-' && o[-1] != '.') | |
1317 | /* convert [foo][bar] to [bar] */ | |
1318 | while (o[-1] != '[' && o[-1] != '<') | |
1319 | o--; | |
1320 | else if (*p == '-' && *o != '.') | |
1321 | *--p = '.'; | |
1322 | } | |
1323 | else if (p[0] == '-' && o[-1] == '.' && | |
1324 | (p[1] == '.' || p[1] == ']' || p[1] == '>')) | |
1325 | /* flush .foo.- ; leave - if stopped by '[' or '<' */ | |
1326 | { | |
1327 | do | |
1328 | o--; | |
1329 | while (o[-1] != '.' && o[-1] != '[' && o[-1] != '<'); | |
5e570b75 | 1330 | if (p[1] == '.') /* foo.-.bar ==> bar. */ |
570d7624 JB |
1331 | p += 2; |
1332 | else if (o[-1] == '.') /* '.foo.-]' ==> ']' */ | |
1333 | p++, o--; | |
1334 | /* else [foo.-] ==> [-] */ | |
1335 | } | |
1336 | else | |
1337 | { | |
1338 | #ifndef VMS4_4 | |
1339 | if (*p == '-' && | |
1340 | o[-1] != '[' && o[-1] != '<' && o[-1] != '.' && | |
1341 | p[1] != ']' && p[1] != '>' && p[1] != '.') | |
1342 | *p = '_'; | |
1343 | #endif /* VMS4_4 */ | |
1344 | *o++ = *p++; | |
1345 | } | |
1346 | #else /* not VMS */ | |
5e570b75 RS |
1347 | if (!IS_DIRECTORY_SEP (*p)) |
1348 | { | |
570d7624 JB |
1349 | *o++ = *p++; |
1350 | } | |
c0fa5a0b KH |
1351 | else if (IS_DIRECTORY_SEP (p[0]) && IS_DIRECTORY_SEP (p[1]) |
1352 | #if defined (APOLLO) || defined (WINDOWSNT) | |
199607e4 | 1353 | /* // at start of filename is meaningful in Apollo |
c0fa5a0b | 1354 | and WindowsNT systems */ |
570d7624 | 1355 | && o != target |
199607e4 | 1356 | #endif /* APOLLO || WINDOWSNT */ |
570d7624 JB |
1357 | ) |
1358 | { | |
1359 | o = target; | |
1360 | p++; | |
1361 | } | |
5e570b75 | 1362 | else if (IS_DIRECTORY_SEP (p[0]) |
c77d647e | 1363 | && p[1] == '.' |
5e570b75 | 1364 | && (IS_DIRECTORY_SEP (p[2]) |
c77d647e JB |
1365 | || p[2] == 0)) |
1366 | { | |
1367 | /* If "/." is the entire filename, keep the "/". Otherwise, | |
1368 | just delete the whole "/.". */ | |
1369 | if (o == target && p[2] == '\0') | |
1370 | *o++ = *p; | |
1371 | p += 2; | |
1372 | } | |
c0fa5a0b | 1373 | else if (IS_DIRECTORY_SEP (p[0]) && p[1] == '.' && p[2] == '.' |
570d7624 JB |
1374 | /* `/../' is the "superroot" on certain file systems. */ |
1375 | && o != target | |
5e570b75 | 1376 | && (IS_DIRECTORY_SEP (p[3]) || p[3] == 0)) |
570d7624 | 1377 | { |
5e570b75 | 1378 | while (o != target && (--o) && !IS_DIRECTORY_SEP (*o)) |
570d7624 | 1379 | ; |
51b1d12e RS |
1380 | if (o == target && IS_ANY_SEP (*o)) |
1381 | ++o; | |
570d7624 JB |
1382 | p += 3; |
1383 | } | |
1384 | else | |
5e570b75 | 1385 | { |
570d7624 JB |
1386 | *o++ = *p++; |
1387 | } | |
1388 | #endif /* not VMS */ | |
1389 | } | |
1390 | ||
5e570b75 | 1391 | #ifdef DOS_NT |
199607e4 | 1392 | /* At last, set drive name. */ |
5e570b75 | 1393 | #ifdef WINDOWSNT |
199607e4 RS |
1394 | /* Except for network file name. */ |
1395 | if (!(IS_DIRECTORY_SEP (target[0]) && IS_DIRECTORY_SEP (target[1]))) | |
5e570b75 | 1396 | #endif /* WINDOWSNT */ |
4c3c22f3 | 1397 | { |
199607e4 | 1398 | if (!drive) abort (); |
4c3c22f3 | 1399 | target -= 2; |
f94988a7 | 1400 | target[0] = DRIVE_LETTER (drive); |
4c3c22f3 RS |
1401 | target[1] = ':'; |
1402 | } | |
199607e4 | 1403 | CORRECT_DIR_SEPS (target); |
5e570b75 | 1404 | #endif /* DOS_NT */ |
4c3c22f3 | 1405 | |
570d7624 JB |
1406 | return make_string (target, o - target); |
1407 | } | |
5e570b75 | 1408 | |
570d7624 | 1409 | #if 0 |
5e570b75 | 1410 | /* Changed this DEFUN to a DEAFUN, so as not to confuse `make-docfile'. */ |
e5d77022 | 1411 | DEAFUN ("expand-file-name", Fexpand_file_name, Sexpand_file_name, 1, 2, 0, |
570d7624 JB |
1412 | "Convert FILENAME to absolute, and canonicalize it.\n\ |
1413 | Second arg DEFAULT is directory to start with if FILENAME is relative\n\ | |
1414 | (does not start with slash); if DEFAULT is nil or missing,\n\ | |
1415 | the current buffer's value of default-directory is used.\n\ | |
1416 | Filenames containing `.' or `..' as components are simplified;\n\ | |
1417 | initial `~/' expands to your home directory.\n\ | |
1418 | See also the function `substitute-in-file-name'.") | |
1419 | (name, defalt) | |
1420 | Lisp_Object name, defalt; | |
1421 | { | |
1422 | unsigned char *nm; | |
199607e4 | 1423 | |
570d7624 JB |
1424 | register unsigned char *newdir, *p, *o; |
1425 | int tlen; | |
1426 | unsigned char *target; | |
1427 | struct passwd *pw; | |
1428 | int lose; | |
1429 | #ifdef VMS | |
1430 | unsigned char * colon = 0; | |
1431 | unsigned char * close = 0; | |
1432 | unsigned char * slash = 0; | |
1433 | unsigned char * brack = 0; | |
1434 | int lbrack = 0, rbrack = 0; | |
1435 | int dots = 0; | |
1436 | #endif /* VMS */ | |
199607e4 | 1437 | |
570d7624 JB |
1438 | CHECK_STRING (name, 0); |
1439 | ||
1440 | #ifdef VMS | |
1441 | /* Filenames on VMS are always upper case. */ | |
1442 | name = Fupcase (name); | |
1443 | #endif | |
1444 | ||
1445 | nm = XSTRING (name)->data; | |
199607e4 | 1446 | |
570d7624 JB |
1447 | /* If nm is absolute, flush ...// and detect /./ and /../. |
1448 | If no /./ or /../ we can return right away. */ | |
1449 | if ( | |
1450 | nm[0] == '/' | |
1451 | #ifdef VMS | |
1452 | || index (nm, ':') | |
1453 | #endif /* VMS */ | |
1454 | ) | |
1455 | { | |
1456 | p = nm; | |
1457 | lose = 0; | |
1458 | while (*p) | |
1459 | { | |
1460 | if (p[0] == '/' && p[1] == '/' | |
1461 | #ifdef APOLLO | |
1462 | /* // at start of filename is meaningful on Apollo system */ | |
1463 | && nm != p | |
1464 | #endif /* APOLLO */ | |
1465 | ) | |
1466 | nm = p + 1; | |
1467 | if (p[0] == '/' && p[1] == '~') | |
1468 | nm = p + 1, lose = 1; | |
1469 | if (p[0] == '/' && p[1] == '.' | |
1470 | && (p[2] == '/' || p[2] == 0 | |
1471 | || (p[2] == '.' && (p[3] == '/' || p[3] == 0)))) | |
1472 | lose = 1; | |
1473 | #ifdef VMS | |
1474 | if (p[0] == '\\') | |
1475 | lose = 1; | |
1476 | if (p[0] == '/') { | |
1477 | /* if dev:[dir]/, move nm to / */ | |
1478 | if (!slash && p > nm && (brack || colon)) { | |
1479 | nm = (brack ? brack + 1 : colon + 1); | |
1480 | lbrack = rbrack = 0; | |
1481 | brack = 0; | |
1482 | colon = 0; | |
1483 | } | |
1484 | slash = p; | |
1485 | } | |
1486 | if (p[0] == '-') | |
1487 | #ifndef VMS4_4 | |
1488 | /* VMS pre V4.4,convert '-'s in filenames. */ | |
1489 | if (lbrack == rbrack) | |
1490 | { | |
5e570b75 | 1491 | if (dots < 2) /* this is to allow negative version numbers */ |
570d7624 JB |
1492 | p[0] = '_'; |
1493 | } | |
1494 | else | |
1495 | #endif /* VMS4_4 */ | |
1496 | if (lbrack > rbrack && | |
1497 | ((p[-1] == '.' || p[-1] == '[' || p[-1] == '<') && | |
1498 | (p[1] == '.' || p[1] == ']' || p[1] == '>'))) | |
1499 | lose = 1; | |
1500 | #ifndef VMS4_4 | |
1501 | else | |
1502 | p[0] = '_'; | |
1503 | #endif /* VMS4_4 */ | |
1504 | /* count open brackets, reset close bracket pointer */ | |
1505 | if (p[0] == '[' || p[0] == '<') | |
1506 | lbrack++, brack = 0; | |
1507 | /* count close brackets, set close bracket pointer */ | |
1508 | if (p[0] == ']' || p[0] == '>') | |
1509 | rbrack++, brack = p; | |
1510 | /* detect ][ or >< */ | |
1511 | if ((p[0] == ']' || p[0] == '>') && (p[1] == '[' || p[1] == '<')) | |
1512 | lose = 1; | |
1513 | if ((p[0] == ':' || p[0] == ']' || p[0] == '>') && p[1] == '~') | |
1514 | nm = p + 1, lose = 1; | |
1515 | if (p[0] == ':' && (colon || slash)) | |
1516 | /* if dev1:[dir]dev2:, move nm to dev2: */ | |
1517 | if (brack) | |
1518 | { | |
1519 | nm = brack + 1; | |
1520 | brack = 0; | |
1521 | } | |
199607e4 | 1522 | /* If /name/dev:, move nm to dev: */ |
570d7624 JB |
1523 | else if (slash) |
1524 | nm = slash + 1; | |
199607e4 | 1525 | /* If node::dev:, move colon following dev */ |
570d7624 JB |
1526 | else if (colon && colon[-1] == ':') |
1527 | colon = p; | |
199607e4 | 1528 | /* If dev1:dev2:, move nm to dev2: */ |
570d7624 JB |
1529 | else if (colon && colon[-1] != ':') |
1530 | { | |
1531 | nm = colon + 1; | |
1532 | colon = 0; | |
1533 | } | |
1534 | if (p[0] == ':' && !colon) | |
1535 | { | |
1536 | if (p[1] == ':') | |
1537 | p++; | |
1538 | colon = p; | |
1539 | } | |
1540 | if (lbrack == rbrack) | |
1541 | if (p[0] == ';') | |
1542 | dots = 2; | |
1543 | else if (p[0] == '.') | |
1544 | dots++; | |
1545 | #endif /* VMS */ | |
1546 | p++; | |
1547 | } | |
1548 | if (!lose) | |
1549 | { | |
1550 | #ifdef VMS | |
1551 | if (index (nm, '/')) | |
1552 | return build_string (sys_translate_unix (nm)); | |
1553 | #endif /* VMS */ | |
1554 | if (nm == XSTRING (name)->data) | |
1555 | return name; | |
1556 | return build_string (nm); | |
1557 | } | |
1558 | } | |
1559 | ||
1560 | /* Now determine directory to start with and put it in NEWDIR */ | |
1561 | ||
1562 | newdir = 0; | |
1563 | ||
5e570b75 | 1564 | if (nm[0] == '~') /* prefix ~ */ |
570d7624 JB |
1565 | if (nm[1] == '/' |
1566 | #ifdef VMS | |
1567 | || nm[1] == ':' | |
1568 | #endif /* VMS */ | |
1569 | || nm[1] == 0)/* ~/filename */ | |
1570 | { | |
1571 | if (!(newdir = (unsigned char *) egetenv ("HOME"))) | |
1572 | newdir = (unsigned char *) ""; | |
1573 | nm++; | |
1574 | #ifdef VMS | |
5e570b75 | 1575 | nm++; /* Don't leave the slash in nm. */ |
570d7624 JB |
1576 | #endif /* VMS */ |
1577 | } | |
1578 | else /* ~user/filename */ | |
1579 | { | |
1580 | /* Get past ~ to user */ | |
1581 | unsigned char *user = nm + 1; | |
1582 | /* Find end of name. */ | |
1583 | unsigned char *ptr = (unsigned char *) index (user, '/'); | |
1584 | int len = ptr ? ptr - user : strlen (user); | |
1585 | #ifdef VMS | |
1586 | unsigned char *ptr1 = index (user, ':'); | |
1587 | if (ptr1 != 0 && ptr1 - user < len) | |
1588 | len = ptr1 - user; | |
5e570b75 | 1589 | #endif /* VMS */ |
570d7624 JB |
1590 | /* Copy the user name into temp storage. */ |
1591 | o = (unsigned char *) alloca (len + 1); | |
1592 | bcopy ((char *) user, o, len); | |
1593 | o[len] = 0; | |
1594 | ||
1595 | /* Look up the user name. */ | |
1596 | pw = (struct passwd *) getpwnam (o + 1); | |
1597 | if (!pw) | |
1598 | error ("\"%s\" isn't a registered user", o + 1); | |
1599 | ||
1600 | newdir = (unsigned char *) pw->pw_dir; | |
1601 | ||
1602 | /* Discard the user name from NM. */ | |
1603 | nm += len; | |
1604 | } | |
1605 | ||
1606 | if (nm[0] != '/' | |
1607 | #ifdef VMS | |
1608 | && !index (nm, ':') | |
1609 | #endif /* not VMS */ | |
1610 | && !newdir) | |
1611 | { | |
265a9e55 | 1612 | if (NILP (defalt)) |
570d7624 JB |
1613 | defalt = current_buffer->directory; |
1614 | CHECK_STRING (defalt, 1); | |
1615 | newdir = XSTRING (defalt)->data; | |
1616 | } | |
1617 | ||
1618 | /* Now concatenate the directory and name to new space in the stack frame */ | |
1619 | ||
1620 | tlen = (newdir ? strlen (newdir) + 1 : 0) + strlen (nm) + 1; | |
1621 | target = (unsigned char *) alloca (tlen); | |
1622 | *target = 0; | |
1623 | ||
1624 | if (newdir) | |
1625 | { | |
1626 | #ifndef VMS | |
1627 | if (nm[0] == 0 || nm[0] == '/') | |
1628 | strcpy (target, newdir); | |
1629 | else | |
1630 | #endif | |
1631 | file_name_as_directory (target, newdir); | |
1632 | } | |
1633 | ||
1634 | strcat (target, nm); | |
1635 | #ifdef VMS | |
1636 | if (index (target, '/')) | |
1637 | strcpy (target, sys_translate_unix (target)); | |
1638 | #endif /* VMS */ | |
1639 | ||
1640 | /* Now canonicalize by removing /. and /foo/.. if they appear */ | |
1641 | ||
1642 | p = target; | |
1643 | o = target; | |
1644 | ||
1645 | while (*p) | |
1646 | { | |
1647 | #ifdef VMS | |
1648 | if (*p != ']' && *p != '>' && *p != '-') | |
1649 | { | |
1650 | if (*p == '\\') | |
1651 | p++; | |
1652 | *o++ = *p++; | |
1653 | } | |
1654 | else if ((p[0] == ']' || p[0] == '>') && p[0] == p[1] + 2) | |
1655 | /* brackets are offset from each other by 2 */ | |
1656 | { | |
1657 | p += 2; | |
1658 | if (*p != '.' && *p != '-' && o[-1] != '.') | |
1659 | /* convert [foo][bar] to [bar] */ | |
1660 | while (o[-1] != '[' && o[-1] != '<') | |
1661 | o--; | |
1662 | else if (*p == '-' && *o != '.') | |
1663 | *--p = '.'; | |
1664 | } | |
1665 | else if (p[0] == '-' && o[-1] == '.' && | |
1666 | (p[1] == '.' || p[1] == ']' || p[1] == '>')) | |
1667 | /* flush .foo.- ; leave - if stopped by '[' or '<' */ | |
1668 | { | |
1669 | do | |
1670 | o--; | |
1671 | while (o[-1] != '.' && o[-1] != '[' && o[-1] != '<'); | |
5e570b75 | 1672 | if (p[1] == '.') /* foo.-.bar ==> bar. */ |
570d7624 JB |
1673 | p += 2; |
1674 | else if (o[-1] == '.') /* '.foo.-]' ==> ']' */ | |
1675 | p++, o--; | |
1676 | /* else [foo.-] ==> [-] */ | |
1677 | } | |
1678 | else | |
1679 | { | |
1680 | #ifndef VMS4_4 | |
1681 | if (*p == '-' && | |
1682 | o[-1] != '[' && o[-1] != '<' && o[-1] != '.' && | |
1683 | p[1] != ']' && p[1] != '>' && p[1] != '.') | |
1684 | *p = '_'; | |
1685 | #endif /* VMS4_4 */ | |
1686 | *o++ = *p++; | |
1687 | } | |
1688 | #else /* not VMS */ | |
1689 | if (*p != '/') | |
5e570b75 | 1690 | { |
570d7624 JB |
1691 | *o++ = *p++; |
1692 | } | |
1693 | else if (!strncmp (p, "//", 2) | |
1694 | #ifdef APOLLO | |
1695 | /* // at start of filename is meaningful in Apollo system */ | |
1696 | && o != target | |
1697 | #endif /* APOLLO */ | |
1698 | ) | |
1699 | { | |
1700 | o = target; | |
1701 | p++; | |
1702 | } | |
1703 | else if (p[0] == '/' && p[1] == '.' && | |
1704 | (p[2] == '/' || p[2] == 0)) | |
1705 | p += 2; | |
1706 | else if (!strncmp (p, "/..", 3) | |
1707 | /* `/../' is the "superroot" on certain file systems. */ | |
1708 | && o != target | |
1709 | && (p[3] == '/' || p[3] == 0)) | |
1710 | { | |
1711 | while (o != target && *--o != '/') | |
1712 | ; | |
1713 | #ifdef APOLLO | |
1714 | if (o == target + 1 && o[-1] == '/' && o[0] == '/') | |
1715 | ++o; | |
1716 | else | |
1717 | #endif /* APOLLO */ | |
1718 | if (o == target && *o == '/') | |
1719 | ++o; | |
1720 | p += 3; | |
1721 | } | |
1722 | else | |
5e570b75 | 1723 | { |
570d7624 JB |
1724 | *o++ = *p++; |
1725 | } | |
1726 | #endif /* not VMS */ | |
1727 | } | |
1728 | ||
1729 | return make_string (target, o - target); | |
1730 | } | |
1731 | #endif | |
1732 | \f | |
1733 | DEFUN ("substitute-in-file-name", Fsubstitute_in_file_name, | |
1734 | Ssubstitute_in_file_name, 1, 1, 0, | |
1735 | "Substitute environment variables referred to in FILENAME.\n\ | |
1736 | `$FOO' where FOO is an environment variable name means to substitute\n\ | |
1737 | the value of that variable. The variable name should be terminated\n\ | |
1738 | with a character not a letter, digit or underscore; otherwise, enclose\n\ | |
1739 | the entire variable name in braces.\n\ | |
1740 | If `/~' appears, all of FILENAME through that `/' is discarded.\n\n\ | |
1741 | On VMS, `$' substitution is not done; this function does little and only\n\ | |
1742 | duplicates what `expand-file-name' does.") | |
3b7f6e60 EN |
1743 | (filename) |
1744 | Lisp_Object filename; | |
570d7624 JB |
1745 | { |
1746 | unsigned char *nm; | |
1747 | ||
1748 | register unsigned char *s, *p, *o, *x, *endp; | |
1749 | unsigned char *target; | |
1750 | int total = 0; | |
1751 | int substituted = 0; | |
1752 | unsigned char *xnm; | |
8ce069f5 | 1753 | Lisp_Object handler; |
570d7624 | 1754 | |
3b7f6e60 | 1755 | CHECK_STRING (filename, 0); |
570d7624 | 1756 | |
8ce069f5 RS |
1757 | /* If the file name has special constructs in it, |
1758 | call the corresponding file handler. */ | |
3b7f6e60 | 1759 | handler = Ffind_file_name_handler (filename, Qsubstitute_in_file_name); |
8ce069f5 | 1760 | if (!NILP (handler)) |
3b7f6e60 | 1761 | return call2 (handler, Qsubstitute_in_file_name, filename); |
8ce069f5 | 1762 | |
3b7f6e60 | 1763 | nm = XSTRING (filename)->data; |
199607e4 RS |
1764 | #ifdef DOS_NT |
1765 | nm = strcpy (alloca (strlen (nm) + 1), nm); | |
1766 | CORRECT_DIR_SEPS (nm); | |
1767 | substituted = (strcmp (nm, XSTRING (filename)->data) != 0); | |
a5a1cc06 | 1768 | #endif |
3b7f6e60 | 1769 | endp = nm + XSTRING (filename)->size; |
570d7624 JB |
1770 | |
1771 | /* If /~ or // appears, discard everything through first slash. */ | |
1772 | ||
1773 | for (p = nm; p != endp; p++) | |
1774 | { | |
199607e4 RS |
1775 | if ((p[0] == '~' |
1776 | #if defined (APOLLO) || defined (WINDOWSNT) | |
1777 | /* // at start of file name is meaningful in Apollo and | |
1778 | WindowsNT systems */ | |
1779 | || (IS_DIRECTORY_SEP (p[0]) && p - 1 != nm) | |
1780 | #else /* not (APOLLO || WINDOWSNT) */ | |
1781 | || IS_DIRECTORY_SEP (p[0]) | |
1782 | #endif /* not (APOLLO || WINDOWSNT) */ | |
570d7624 | 1783 | ) |
5e570b75 RS |
1784 | && p != nm |
1785 | && (0 | |
570d7624 | 1786 | #ifdef VMS |
5e570b75 | 1787 | || p[-1] == ':' || p[-1] == ']' || p[-1] == '>' |
570d7624 | 1788 | #endif /* VMS */ |
5e570b75 | 1789 | || IS_DIRECTORY_SEP (p[-1]))) |
570d7624 JB |
1790 | { |
1791 | nm = p; | |
1792 | substituted = 1; | |
1793 | } | |
5e570b75 | 1794 | #ifdef DOS_NT |
199607e4 RS |
1795 | /* see comment in expand-file-name about drive specifiers */ |
1796 | else if (IS_DRIVE (p[0]) && p[1] == ':' | |
1797 | && p > nm && IS_DIRECTORY_SEP (p[-1])) | |
4c3c22f3 RS |
1798 | { |
1799 | nm = p; | |
1800 | substituted = 1; | |
1801 | } | |
5e570b75 | 1802 | #endif /* DOS_NT */ |
570d7624 JB |
1803 | } |
1804 | ||
1805 | #ifdef VMS | |
1806 | return build_string (nm); | |
1807 | #else | |
1808 | ||
1809 | /* See if any variables are substituted into the string | |
1810 | and find the total length of their values in `total' */ | |
1811 | ||
1812 | for (p = nm; p != endp;) | |
1813 | if (*p != '$') | |
1814 | p++; | |
1815 | else | |
1816 | { | |
1817 | p++; | |
1818 | if (p == endp) | |
1819 | goto badsubst; | |
1820 | else if (*p == '$') | |
1821 | { | |
1822 | /* "$$" means a single "$" */ | |
1823 | p++; | |
1824 | total -= 1; | |
1825 | substituted = 1; | |
1826 | continue; | |
1827 | } | |
1828 | else if (*p == '{') | |
1829 | { | |
1830 | o = ++p; | |
1831 | while (p != endp && *p != '}') p++; | |
1832 | if (*p != '}') goto missingclose; | |
1833 | s = p; | |
1834 | } | |
1835 | else | |
1836 | { | |
1837 | o = p; | |
1838 | while (p != endp && (isalnum (*p) || *p == '_')) p++; | |
1839 | s = p; | |
1840 | } | |
1841 | ||
1842 | /* Copy out the variable name */ | |
1843 | target = (unsigned char *) alloca (s - o + 1); | |
1844 | strncpy (target, o, s - o); | |
1845 | target[s - o] = 0; | |
5e570b75 | 1846 | #ifdef DOS_NT |
4c3c22f3 | 1847 | strupr (target); /* $home == $HOME etc. */ |
5e570b75 | 1848 | #endif /* DOS_NT */ |
570d7624 JB |
1849 | |
1850 | /* Get variable value */ | |
1851 | o = (unsigned char *) egetenv (target); | |
570d7624 JB |
1852 | if (!o) goto badvar; |
1853 | total += strlen (o); | |
1854 | substituted = 1; | |
1855 | } | |
1856 | ||
1857 | if (!substituted) | |
3b7f6e60 | 1858 | return filename; |
570d7624 JB |
1859 | |
1860 | /* If substitution required, recopy the string and do it */ | |
1861 | /* Make space in stack frame for the new copy */ | |
3b7f6e60 | 1862 | xnm = (unsigned char *) alloca (XSTRING (filename)->size + total + 1); |
570d7624 JB |
1863 | x = xnm; |
1864 | ||
1865 | /* Copy the rest of the name through, replacing $ constructs with values */ | |
1866 | for (p = nm; *p;) | |
1867 | if (*p != '$') | |
1868 | *x++ = *p++; | |
1869 | else | |
1870 | { | |
1871 | p++; | |
1872 | if (p == endp) | |
1873 | goto badsubst; | |
1874 | else if (*p == '$') | |
1875 | { | |
1876 | *x++ = *p++; | |
1877 | continue; | |
1878 | } | |
1879 | else if (*p == '{') | |
1880 | { | |
1881 | o = ++p; | |
1882 | while (p != endp && *p != '}') p++; | |
1883 | if (*p != '}') goto missingclose; | |
1884 | s = p++; | |
1885 | } | |
1886 | else | |
1887 | { | |
1888 | o = p; | |
1889 | while (p != endp && (isalnum (*p) || *p == '_')) p++; | |
1890 | s = p; | |
1891 | } | |
1892 | ||
1893 | /* Copy out the variable name */ | |
1894 | target = (unsigned char *) alloca (s - o + 1); | |
1895 | strncpy (target, o, s - o); | |
1896 | target[s - o] = 0; | |
5e570b75 | 1897 | #ifdef DOS_NT |
4c3c22f3 | 1898 | strupr (target); /* $home == $HOME etc. */ |
5e570b75 | 1899 | #endif /* DOS_NT */ |
570d7624 JB |
1900 | |
1901 | /* Get variable value */ | |
1902 | o = (unsigned char *) egetenv (target); | |
570d7624 JB |
1903 | if (!o) |
1904 | goto badvar; | |
1905 | ||
1906 | strcpy (x, o); | |
1907 | x += strlen (o); | |
1908 | } | |
1909 | ||
1910 | *x = 0; | |
1911 | ||
1912 | /* If /~ or // appears, discard everything through first slash. */ | |
1913 | ||
1914 | for (p = xnm; p != x; p++) | |
5e570b75 | 1915 | if ((p[0] == '~' |
199607e4 | 1916 | #if defined (APOLLO) || defined (WINDOWSNT) |
5e570b75 | 1917 | || (IS_DIRECTORY_SEP (p[0]) && p - 1 != xnm) |
199607e4 RS |
1918 | #else /* not (APOLLO || WINDOWSNT) */ |
1919 | || IS_DIRECTORY_SEP (p[0]) | |
1920 | #endif /* not (APOLLO || WINDOWSNT) */ | |
570d7624 | 1921 | ) |
5e570b75 | 1922 | && p != nm && IS_DIRECTORY_SEP (p[-1])) |
570d7624 | 1923 | xnm = p; |
5e570b75 | 1924 | #ifdef DOS_NT |
199607e4 RS |
1925 | else if (IS_DRIVE (p[0]) && p[1] == ':' |
1926 | && p > nm && IS_DIRECTORY_SEP (p[-1])) | |
1927 | xnm = p; | |
4c3c22f3 | 1928 | #endif |
570d7624 JB |
1929 | |
1930 | return make_string (xnm, x - xnm); | |
1931 | ||
1932 | badsubst: | |
1933 | error ("Bad format environment-variable substitution"); | |
1934 | missingclose: | |
1935 | error ("Missing \"}\" in environment-variable substitution"); | |
1936 | badvar: | |
1937 | error ("Substituting nonexistent environment variable \"%s\"", target); | |
1938 | ||
1939 | /* NOTREACHED */ | |
1940 | #endif /* not VMS */ | |
1941 | } | |
1942 | \f | |
067ffa38 | 1943 | /* A slightly faster and more convenient way to get |
298b760e | 1944 | (directory-file-name (expand-file-name FOO)). */ |
067ffa38 | 1945 | |
570d7624 JB |
1946 | Lisp_Object |
1947 | expand_and_dir_to_file (filename, defdir) | |
1948 | Lisp_Object filename, defdir; | |
1949 | { | |
199607e4 | 1950 | register Lisp_Object absname; |
570d7624 | 1951 | |
199607e4 | 1952 | absname = Fexpand_file_name (filename, defdir); |
570d7624 JB |
1953 | #ifdef VMS |
1954 | { | |
199607e4 | 1955 | register int c = XSTRING (absname)->data[XSTRING (absname)->size - 1]; |
570d7624 | 1956 | if (c == ':' || c == ']' || c == '>') |
199607e4 | 1957 | absname = Fdirectory_file_name (absname); |
570d7624 JB |
1958 | } |
1959 | #else | |
199607e4 | 1960 | /* Remove final slash, if any (unless this is the root dir). |
570d7624 | 1961 | stat behaves differently depending! */ |
199607e4 RS |
1962 | if (XSTRING (absname)->size > 1 |
1963 | && IS_DIRECTORY_SEP (XSTRING (absname)->data[XSTRING (absname)->size - 1]) | |
1964 | && !IS_DEVICE_SEP (XSTRING (absname)->data[XSTRING (absname)->size-2])) | |
ddc61f46 | 1965 | /* We cannot take shortcuts; they might be wrong for magic file names. */ |
199607e4 | 1966 | absname = Fdirectory_file_name (absname); |
570d7624 | 1967 | #endif |
199607e4 | 1968 | return absname; |
570d7624 JB |
1969 | } |
1970 | \f | |
3ed15d97 RS |
1971 | /* Signal an error if the file ABSNAME already exists. |
1972 | If INTERACTIVE is nonzero, ask the user whether to proceed, | |
1973 | and bypass the error if the user says to go ahead. | |
1974 | QUERYSTRING is a name for the action that is being considered | |
1975 | to alter the file. | |
1976 | *STATPTR is used to store the stat information if the file exists. | |
1977 | If the file does not exist, STATPTR->st_mode is set to 0. */ | |
1978 | ||
c4df73f9 | 1979 | void |
3ed15d97 | 1980 | barf_or_query_if_file_exists (absname, querystring, interactive, statptr) |
570d7624 JB |
1981 | Lisp_Object absname; |
1982 | unsigned char *querystring; | |
1983 | int interactive; | |
3ed15d97 | 1984 | struct stat *statptr; |
570d7624 JB |
1985 | { |
1986 | register Lisp_Object tem; | |
4018b5ef | 1987 | struct stat statbuf; |
570d7624 JB |
1988 | struct gcpro gcpro1; |
1989 | ||
4018b5ef RS |
1990 | /* stat is a good way to tell whether the file exists, |
1991 | regardless of what access permissions it has. */ | |
1992 | if (stat (XSTRING (absname)->data, &statbuf) >= 0) | |
570d7624 JB |
1993 | { |
1994 | if (! interactive) | |
1995 | Fsignal (Qfile_already_exists, | |
1996 | Fcons (build_string ("File already exists"), | |
1997 | Fcons (absname, Qnil))); | |
1998 | GCPRO1 (absname); | |
1999 | tem = do_yes_or_no_p (format1 ("File %s already exists; %s anyway? ", | |
2000 | XSTRING (absname)->data, querystring)); | |
2001 | UNGCPRO; | |
265a9e55 | 2002 | if (NILP (tem)) |
570d7624 JB |
2003 | Fsignal (Qfile_already_exists, |
2004 | Fcons (build_string ("File already exists"), | |
2005 | Fcons (absname, Qnil))); | |
3ed15d97 RS |
2006 | if (statptr) |
2007 | *statptr = statbuf; | |
2008 | } | |
2009 | else | |
2010 | { | |
2011 | if (statptr) | |
2012 | statptr->st_mode = 0; | |
570d7624 JB |
2013 | } |
2014 | return; | |
2015 | } | |
2016 | ||
2017 | DEFUN ("copy-file", Fcopy_file, Scopy_file, 2, 4, | |
349a7710 | 2018 | "fCopy file: \nFCopy %s to file: \np\nP", |
570d7624 JB |
2019 | "Copy FILE to NEWNAME. Both args must be strings.\n\ |
2020 | Signals a `file-already-exists' error if file NEWNAME already exists,\n\ | |
2021 | unless a third argument OK-IF-ALREADY-EXISTS is supplied and non-nil.\n\ | |
2022 | A number as third arg means request confirmation if NEWNAME already exists.\n\ | |
2023 | This is what happens in interactive use with M-x.\n\ | |
349a7710 JB |
2024 | Fourth arg KEEP-TIME non-nil means give the new file the same\n\ |
2025 | last-modified time as the old one. (This works on only some systems.)\n\ | |
2026 | A prefix arg makes KEEP-TIME non-nil.") | |
3b7f6e60 EN |
2027 | (file, newname, ok_if_already_exists, keep_date) |
2028 | Lisp_Object file, newname, ok_if_already_exists, keep_date; | |
570d7624 JB |
2029 | { |
2030 | int ifd, ofd, n; | |
2031 | char buf[16 * 1024]; | |
3ed15d97 | 2032 | struct stat st, out_st; |
32f4334d | 2033 | Lisp_Object handler; |
570d7624 | 2034 | struct gcpro gcpro1, gcpro2; |
b5148e85 | 2035 | int count = specpdl_ptr - specpdl; |
f73b0ada | 2036 | int input_file_statable_p; |
570d7624 | 2037 | |
3b7f6e60 EN |
2038 | GCPRO2 (file, newname); |
2039 | CHECK_STRING (file, 0); | |
570d7624 | 2040 | CHECK_STRING (newname, 1); |
3b7f6e60 | 2041 | file = Fexpand_file_name (file, Qnil); |
570d7624 | 2042 | newname = Fexpand_file_name (newname, Qnil); |
32f4334d | 2043 | |
0bf2eed2 | 2044 | /* If the input file name has special constructs in it, |
32f4334d | 2045 | call the corresponding file handler. */ |
3b7f6e60 | 2046 | handler = Ffind_file_name_handler (file, Qcopy_file); |
0bf2eed2 | 2047 | /* Likewise for output file name. */ |
51cf6d37 | 2048 | if (NILP (handler)) |
49307295 | 2049 | handler = Ffind_file_name_handler (newname, Qcopy_file); |
32f4334d | 2050 | if (!NILP (handler)) |
3b7f6e60 | 2051 | RETURN_UNGCPRO (call5 (handler, Qcopy_file, file, newname, |
36712b0a | 2052 | ok_if_already_exists, keep_date)); |
32f4334d | 2053 | |
265a9e55 | 2054 | if (NILP (ok_if_already_exists) |
93c30b5f | 2055 | || INTEGERP (ok_if_already_exists)) |
570d7624 | 2056 | barf_or_query_if_file_exists (newname, "copy to it", |
3ed15d97 RS |
2057 | INTEGERP (ok_if_already_exists), &out_st); |
2058 | else if (stat (XSTRING (newname)->data, &out_st) < 0) | |
2059 | out_st.st_mode = 0; | |
570d7624 | 2060 | |
3b7f6e60 | 2061 | ifd = open (XSTRING (file)->data, O_RDONLY); |
570d7624 | 2062 | if (ifd < 0) |
3b7f6e60 | 2063 | report_file_error ("Opening input file", Fcons (file, Qnil)); |
570d7624 | 2064 | |
b5148e85 RS |
2065 | record_unwind_protect (close_file_unwind, make_number (ifd)); |
2066 | ||
f73b0ada BF |
2067 | /* We can only copy regular files and symbolic links. Other files are not |
2068 | copyable by us. */ | |
2069 | input_file_statable_p = (fstat (ifd, &st) >= 0); | |
2070 | ||
34ead71a | 2071 | #if !defined (MSDOS) || __DJGPP__ > 1 |
3ed15d97 RS |
2072 | if (out_st.st_mode != 0 |
2073 | && st.st_dev == out_st.st_dev && st.st_ino == out_st.st_ino) | |
2074 | { | |
2075 | errno = 0; | |
2076 | report_file_error ("Input and output files are the same", | |
3b7f6e60 | 2077 | Fcons (file, Fcons (newname, Qnil))); |
3ed15d97 RS |
2078 | } |
2079 | #endif | |
2080 | ||
f73b0ada BF |
2081 | #if defined (S_ISREG) && defined (S_ISLNK) |
2082 | if (input_file_statable_p) | |
2083 | { | |
2084 | if (!(S_ISREG (st.st_mode)) && !(S_ISLNK (st.st_mode))) | |
2085 | { | |
2086 | #if defined (EISDIR) | |
2087 | /* Get a better looking error message. */ | |
2088 | errno = EISDIR; | |
2089 | #endif /* EISDIR */ | |
3b7f6e60 | 2090 | report_file_error ("Non-regular file", Fcons (file, Qnil)); |
f73b0ada BF |
2091 | } |
2092 | } | |
2093 | #endif /* S_ISREG && S_ISLNK */ | |
2094 | ||
570d7624 JB |
2095 | #ifdef VMS |
2096 | /* Create the copy file with the same record format as the input file */ | |
2097 | ofd = sys_creat (XSTRING (newname)->data, 0666, ifd); | |
2098 | #else | |
4c3c22f3 RS |
2099 | #ifdef MSDOS |
2100 | /* System's default file type was set to binary by _fmode in emacs.c. */ | |
2101 | ofd = creat (XSTRING (newname)->data, S_IREAD | S_IWRITE); | |
2102 | #else /* not MSDOS */ | |
570d7624 | 2103 | ofd = creat (XSTRING (newname)->data, 0666); |
4c3c22f3 | 2104 | #endif /* not MSDOS */ |
570d7624 JB |
2105 | #endif /* VMS */ |
2106 | if (ofd < 0) | |
3ed15d97 | 2107 | report_file_error ("Opening output file", Fcons (newname, Qnil)); |
b5148e85 RS |
2108 | |
2109 | record_unwind_protect (close_file_unwind, make_number (ofd)); | |
570d7624 | 2110 | |
b5148e85 RS |
2111 | immediate_quit = 1; |
2112 | QUIT; | |
570d7624 JB |
2113 | while ((n = read (ifd, buf, sizeof buf)) > 0) |
2114 | if (write (ofd, buf, n) != n) | |
3ed15d97 | 2115 | report_file_error ("I/O error", Fcons (newname, Qnil)); |
b5148e85 | 2116 | immediate_quit = 0; |
570d7624 | 2117 | |
5acac34e RS |
2118 | /* Closing the output clobbers the file times on some systems. */ |
2119 | if (close (ofd) < 0) | |
2120 | report_file_error ("I/O error", Fcons (newname, Qnil)); | |
2121 | ||
f73b0ada | 2122 | if (input_file_statable_p) |
570d7624 | 2123 | { |
265a9e55 | 2124 | if (!NILP (keep_date)) |
570d7624 | 2125 | { |
de5bf5d3 JB |
2126 | EMACS_TIME atime, mtime; |
2127 | EMACS_SET_SECS_USECS (atime, st.st_atime, 0); | |
2128 | EMACS_SET_SECS_USECS (mtime, st.st_mtime, 0); | |
d6303611 KH |
2129 | if (set_file_times (XSTRING (newname)->data, atime, mtime)) |
2130 | report_file_error ("I/O error", Fcons (newname, Qnil)); | |
570d7624 | 2131 | } |
2dc3be7e RS |
2132 | #ifndef MSDOS |
2133 | chmod (XSTRING (newname)->data, st.st_mode & 07777); | |
2134 | #else /* MSDOS */ | |
2135 | #if defined (__DJGPP__) && __DJGPP__ > 1 | |
2136 | /* In DJGPP v2.0 and later, fstat usually returns true file mode bits, | |
2137 | and if it can't, it tells so. Otherwise, under MSDOS we usually | |
2138 | get only the READ bit, which will make the copied file read-only, | |
2139 | so it's better not to chmod at all. */ | |
2140 | if ((_djstat_flags & _STFAIL_WRITEBIT) == 0) | |
de5bf5d3 | 2141 | chmod (XSTRING (newname)->data, st.st_mode & 07777); |
2dc3be7e RS |
2142 | #endif /* DJGPP version 2 or newer */ |
2143 | #endif /* MSDOS */ | |
570d7624 JB |
2144 | } |
2145 | ||
5acac34e RS |
2146 | close (ifd); |
2147 | ||
b5148e85 RS |
2148 | /* Discard the unwind protects. */ |
2149 | specpdl_ptr = specpdl + count; | |
2150 | ||
570d7624 JB |
2151 | UNGCPRO; |
2152 | return Qnil; | |
2153 | } | |
385b6cc7 | 2154 | \f |
9bbe01fb | 2155 | DEFUN ("make-directory-internal", Fmake_directory_internal, |
353cfc19 | 2156 | Smake_directory_internal, 1, 1, 0, |
3b7f6e60 EN |
2157 | "Create a new directory named DIRECTORY.") |
2158 | (directory) | |
2159 | Lisp_Object directory; | |
570d7624 JB |
2160 | { |
2161 | unsigned char *dir; | |
32f4334d | 2162 | Lisp_Object handler; |
570d7624 | 2163 | |
3b7f6e60 EN |
2164 | CHECK_STRING (directory, 0); |
2165 | directory = Fexpand_file_name (directory, Qnil); | |
32f4334d | 2166 | |
3b7f6e60 | 2167 | handler = Ffind_file_name_handler (directory, Qmake_directory_internal); |
32f4334d | 2168 | if (!NILP (handler)) |
3b7f6e60 | 2169 | return call2 (handler, Qmake_directory_internal, directory); |
9bbe01fb | 2170 | |
3b7f6e60 | 2171 | dir = XSTRING (directory)->data; |
570d7624 | 2172 | |
5e570b75 RS |
2173 | #ifdef WINDOWSNT |
2174 | if (mkdir (dir) != 0) | |
2175 | #else | |
570d7624 | 2176 | if (mkdir (dir, 0777) != 0) |
5e570b75 | 2177 | #endif |
3b7f6e60 | 2178 | report_file_error ("Creating directory", Flist (1, &directory)); |
570d7624 | 2179 | |
32f4334d | 2180 | return Qnil; |
570d7624 JB |
2181 | } |
2182 | ||
aa734e17 | 2183 | DEFUN ("delete-directory", Fdelete_directory, Sdelete_directory, 1, 1, "FDelete directory: ", |
3b7f6e60 EN |
2184 | "Delete the directory named DIRECTORY.") |
2185 | (directory) | |
2186 | Lisp_Object directory; | |
570d7624 JB |
2187 | { |
2188 | unsigned char *dir; | |
32f4334d | 2189 | Lisp_Object handler; |
570d7624 | 2190 | |
3b7f6e60 EN |
2191 | CHECK_STRING (directory, 0); |
2192 | directory = Fdirectory_file_name (Fexpand_file_name (directory, Qnil)); | |
2193 | dir = XSTRING (directory)->data; | |
570d7624 | 2194 | |
3b7f6e60 | 2195 | handler = Ffind_file_name_handler (directory, Qdelete_directory); |
32f4334d | 2196 | if (!NILP (handler)) |
3b7f6e60 | 2197 | return call2 (handler, Qdelete_directory, directory); |
32f4334d | 2198 | |
570d7624 | 2199 | if (rmdir (dir) != 0) |
3b7f6e60 | 2200 | report_file_error ("Removing directory", Flist (1, &directory)); |
570d7624 JB |
2201 | |
2202 | return Qnil; | |
2203 | } | |
2204 | ||
2205 | DEFUN ("delete-file", Fdelete_file, Sdelete_file, 1, 1, "fDelete file: ", | |
3b7f6e60 | 2206 | "Delete file named FILENAME.\n\ |
570d7624 JB |
2207 | If file has multiple names, it continues to exist with the other names.") |
2208 | (filename) | |
2209 | Lisp_Object filename; | |
2210 | { | |
32f4334d | 2211 | Lisp_Object handler; |
570d7624 JB |
2212 | CHECK_STRING (filename, 0); |
2213 | filename = Fexpand_file_name (filename, Qnil); | |
32f4334d | 2214 | |
49307295 | 2215 | handler = Ffind_file_name_handler (filename, Qdelete_file); |
32f4334d | 2216 | if (!NILP (handler)) |
8a9b0da9 | 2217 | return call2 (handler, Qdelete_file, filename); |
32f4334d | 2218 | |
570d7624 JB |
2219 | if (0 > unlink (XSTRING (filename)->data)) |
2220 | report_file_error ("Removing old name", Flist (1, &filename)); | |
8a9b0da9 | 2221 | return Qnil; |
570d7624 JB |
2222 | } |
2223 | ||
385b6cc7 RS |
2224 | static Lisp_Object |
2225 | internal_delete_file_1 (ignore) | |
2226 | Lisp_Object ignore; | |
2227 | { | |
2228 | return Qt; | |
2229 | } | |
2230 | ||
2231 | /* Delete file FILENAME, returning 1 if successful and 0 if failed. */ | |
2232 | ||
2233 | int | |
2234 | internal_delete_file (filename) | |
2235 | Lisp_Object filename; | |
2236 | { | |
2237 | return NILP (internal_condition_case_1 (Fdelete_file, filename, | |
2238 | Qt, internal_delete_file_1)); | |
2239 | } | |
2240 | \f | |
570d7624 JB |
2241 | DEFUN ("rename-file", Frename_file, Srename_file, 2, 3, |
2242 | "fRename file: \nFRename %s to file: \np", | |
2243 | "Rename FILE as NEWNAME. Both args strings.\n\ | |
2244 | If file has names other than FILE, it continues to have those names.\n\ | |
2245 | Signals a `file-already-exists' error if a file NEWNAME already exists\n\ | |
2246 | unless optional third argument OK-IF-ALREADY-EXISTS is non-nil.\n\ | |
2247 | A number as third arg means request confirmation if NEWNAME already exists.\n\ | |
2248 | This is what happens in interactive use with M-x.") | |
3b7f6e60 EN |
2249 | (file, newname, ok_if_already_exists) |
2250 | Lisp_Object file, newname, ok_if_already_exists; | |
570d7624 JB |
2251 | { |
2252 | #ifdef NO_ARG_ARRAY | |
2253 | Lisp_Object args[2]; | |
2254 | #endif | |
32f4334d | 2255 | Lisp_Object handler; |
570d7624 JB |
2256 | struct gcpro gcpro1, gcpro2; |
2257 | ||
3b7f6e60 EN |
2258 | GCPRO2 (file, newname); |
2259 | CHECK_STRING (file, 0); | |
570d7624 | 2260 | CHECK_STRING (newname, 1); |
3b7f6e60 | 2261 | file = Fexpand_file_name (file, Qnil); |
570d7624 | 2262 | newname = Fexpand_file_name (newname, Qnil); |
32f4334d RS |
2263 | |
2264 | /* If the file name has special constructs in it, | |
2265 | call the corresponding file handler. */ | |
3b7f6e60 | 2266 | handler = Ffind_file_name_handler (file, Qrename_file); |
51cf6d37 | 2267 | if (NILP (handler)) |
49307295 | 2268 | handler = Ffind_file_name_handler (newname, Qrename_file); |
32f4334d | 2269 | if (!NILP (handler)) |
36712b0a | 2270 | RETURN_UNGCPRO (call4 (handler, Qrename_file, |
3b7f6e60 | 2271 | file, newname, ok_if_already_exists)); |
32f4334d | 2272 | |
265a9e55 | 2273 | if (NILP (ok_if_already_exists) |
93c30b5f | 2274 | || INTEGERP (ok_if_already_exists)) |
570d7624 | 2275 | barf_or_query_if_file_exists (newname, "rename to it", |
3ed15d97 | 2276 | INTEGERP (ok_if_already_exists), 0); |
570d7624 | 2277 | #ifndef BSD4_1 |
3b7f6e60 | 2278 | if (0 > rename (XSTRING (file)->data, XSTRING (newname)->data)) |
570d7624 | 2279 | #else |
3b7f6e60 EN |
2280 | if (0 > link (XSTRING (file)->data, XSTRING (newname)->data) |
2281 | || 0 > unlink (XSTRING (file)->data)) | |
570d7624 JB |
2282 | #endif |
2283 | { | |
2284 | if (errno == EXDEV) | |
2285 | { | |
3b7f6e60 | 2286 | Fcopy_file (file, newname, |
d093c3ac RM |
2287 | /* We have already prompted if it was an integer, |
2288 | so don't have copy-file prompt again. */ | |
2289 | NILP (ok_if_already_exists) ? Qnil : Qt, Qt); | |
3b7f6e60 | 2290 | Fdelete_file (file); |
570d7624 JB |
2291 | } |
2292 | else | |
2293 | #ifdef NO_ARG_ARRAY | |
2294 | { | |
3b7f6e60 | 2295 | args[0] = file; |
570d7624 JB |
2296 | args[1] = newname; |
2297 | report_file_error ("Renaming", Flist (2, args)); | |
2298 | } | |
2299 | #else | |
3b7f6e60 | 2300 | report_file_error ("Renaming", Flist (2, &file)); |
570d7624 JB |
2301 | #endif |
2302 | } | |
2303 | UNGCPRO; | |
2304 | return Qnil; | |
2305 | } | |
2306 | ||
2307 | DEFUN ("add-name-to-file", Fadd_name_to_file, Sadd_name_to_file, 2, 3, | |
2308 | "fAdd name to file: \nFName to add to %s: \np", | |
2309 | "Give FILE additional name NEWNAME. Both args strings.\n\ | |
2310 | Signals a `file-already-exists' error if a file NEWNAME already exists\n\ | |
2311 | unless optional third argument OK-IF-ALREADY-EXISTS is non-nil.\n\ | |
2312 | A number as third arg means request confirmation if NEWNAME already exists.\n\ | |
2313 | This is what happens in interactive use with M-x.") | |
3b7f6e60 EN |
2314 | (file, newname, ok_if_already_exists) |
2315 | Lisp_Object file, newname, ok_if_already_exists; | |
570d7624 JB |
2316 | { |
2317 | #ifdef NO_ARG_ARRAY | |
2318 | Lisp_Object args[2]; | |
2319 | #endif | |
32f4334d | 2320 | Lisp_Object handler; |
570d7624 JB |
2321 | struct gcpro gcpro1, gcpro2; |
2322 | ||
3b7f6e60 EN |
2323 | GCPRO2 (file, newname); |
2324 | CHECK_STRING (file, 0); | |
570d7624 | 2325 | CHECK_STRING (newname, 1); |
3b7f6e60 | 2326 | file = Fexpand_file_name (file, Qnil); |
570d7624 | 2327 | newname = Fexpand_file_name (newname, Qnil); |
32f4334d RS |
2328 | |
2329 | /* If the file name has special constructs in it, | |
2330 | call the corresponding file handler. */ | |
3b7f6e60 | 2331 | handler = Ffind_file_name_handler (file, Qadd_name_to_file); |
32f4334d | 2332 | if (!NILP (handler)) |
3b7f6e60 | 2333 | RETURN_UNGCPRO (call4 (handler, Qadd_name_to_file, file, |
36712b0a | 2334 | newname, ok_if_already_exists)); |
32f4334d | 2335 | |
adc6741c RS |
2336 | /* If the new name has special constructs in it, |
2337 | call the corresponding file handler. */ | |
2338 | handler = Ffind_file_name_handler (newname, Qadd_name_to_file); | |
2339 | if (!NILP (handler)) | |
3b7f6e60 | 2340 | RETURN_UNGCPRO (call4 (handler, Qadd_name_to_file, file, |
adc6741c RS |
2341 | newname, ok_if_already_exists)); |
2342 | ||
265a9e55 | 2343 | if (NILP (ok_if_already_exists) |
93c30b5f | 2344 | || INTEGERP (ok_if_already_exists)) |
570d7624 | 2345 | barf_or_query_if_file_exists (newname, "make it a new name", |
3ed15d97 | 2346 | INTEGERP (ok_if_already_exists), 0); |
5e570b75 RS |
2347 | #ifdef WINDOWSNT |
2348 | /* Windows does not support this operation. */ | |
3b7f6e60 | 2349 | report_file_error ("Adding new name", Flist (2, &file)); |
5e570b75 RS |
2350 | #else /* not WINDOWSNT */ |
2351 | ||
570d7624 | 2352 | unlink (XSTRING (newname)->data); |
3b7f6e60 | 2353 | if (0 > link (XSTRING (file)->data, XSTRING (newname)->data)) |
570d7624 JB |
2354 | { |
2355 | #ifdef NO_ARG_ARRAY | |
3b7f6e60 | 2356 | args[0] = file; |
570d7624 JB |
2357 | args[1] = newname; |
2358 | report_file_error ("Adding new name", Flist (2, args)); | |
2359 | #else | |
3b7f6e60 | 2360 | report_file_error ("Adding new name", Flist (2, &file)); |
570d7624 JB |
2361 | #endif |
2362 | } | |
5e570b75 | 2363 | #endif /* not WINDOWSNT */ |
570d7624 JB |
2364 | |
2365 | UNGCPRO; | |
2366 | return Qnil; | |
2367 | } | |
2368 | ||
2369 | #ifdef S_IFLNK | |
2370 | DEFUN ("make-symbolic-link", Fmake_symbolic_link, Smake_symbolic_link, 2, 3, | |
2371 | "FMake symbolic link to file: \nFMake symbolic link to file %s: \np", | |
2372 | "Make a symbolic link to FILENAME, named LINKNAME. Both args strings.\n\ | |
11183104 | 2373 | Signals a `file-already-exists' error if a file LINKNAME already exists\n\ |
570d7624 | 2374 | unless optional third argument OK-IF-ALREADY-EXISTS is non-nil.\n\ |
11183104 | 2375 | A number as third arg means request confirmation if LINKNAME already exists.\n\ |
570d7624 | 2376 | This happens for interactive use with M-x.") |
e5d77022 JB |
2377 | (filename, linkname, ok_if_already_exists) |
2378 | Lisp_Object filename, linkname, ok_if_already_exists; | |
570d7624 JB |
2379 | { |
2380 | #ifdef NO_ARG_ARRAY | |
2381 | Lisp_Object args[2]; | |
2382 | #endif | |
32f4334d | 2383 | Lisp_Object handler; |
570d7624 JB |
2384 | struct gcpro gcpro1, gcpro2; |
2385 | ||
e5d77022 | 2386 | GCPRO2 (filename, linkname); |
570d7624 | 2387 | CHECK_STRING (filename, 0); |
e5d77022 | 2388 | CHECK_STRING (linkname, 1); |
d9bc1c99 RS |
2389 | /* If the link target has a ~, we must expand it to get |
2390 | a truly valid file name. Otherwise, do not expand; | |
2391 | we want to permit links to relative file names. */ | |
2392 | if (XSTRING (filename)->data[0] == '~') | |
2393 | filename = Fexpand_file_name (filename, Qnil); | |
e5d77022 | 2394 | linkname = Fexpand_file_name (linkname, Qnil); |
32f4334d RS |
2395 | |
2396 | /* If the file name has special constructs in it, | |
2397 | call the corresponding file handler. */ | |
49307295 | 2398 | handler = Ffind_file_name_handler (filename, Qmake_symbolic_link); |
32f4334d | 2399 | if (!NILP (handler)) |
36712b0a KH |
2400 | RETURN_UNGCPRO (call4 (handler, Qmake_symbolic_link, filename, |
2401 | linkname, ok_if_already_exists)); | |
32f4334d | 2402 | |
adc6741c RS |
2403 | /* If the new link name has special constructs in it, |
2404 | call the corresponding file handler. */ | |
2405 | handler = Ffind_file_name_handler (linkname, Qmake_symbolic_link); | |
2406 | if (!NILP (handler)) | |
2407 | RETURN_UNGCPRO (call4 (handler, Qmake_symbolic_link, filename, | |
2408 | linkname, ok_if_already_exists)); | |
2409 | ||
265a9e55 | 2410 | if (NILP (ok_if_already_exists) |
93c30b5f | 2411 | || INTEGERP (ok_if_already_exists)) |
e5d77022 | 2412 | barf_or_query_if_file_exists (linkname, "make it a link", |
3ed15d97 | 2413 | INTEGERP (ok_if_already_exists), 0); |
e5d77022 | 2414 | if (0 > symlink (XSTRING (filename)->data, XSTRING (linkname)->data)) |
570d7624 JB |
2415 | { |
2416 | /* If we didn't complain already, silently delete existing file. */ | |
2417 | if (errno == EEXIST) | |
2418 | { | |
9083124b | 2419 | unlink (XSTRING (linkname)->data); |
e5d77022 | 2420 | if (0 <= symlink (XSTRING (filename)->data, XSTRING (linkname)->data)) |
1a04498e KH |
2421 | { |
2422 | UNGCPRO; | |
2423 | return Qnil; | |
2424 | } | |
570d7624 JB |
2425 | } |
2426 | ||
2427 | #ifdef NO_ARG_ARRAY | |
2428 | args[0] = filename; | |
e5d77022 | 2429 | args[1] = linkname; |
570d7624 JB |
2430 | report_file_error ("Making symbolic link", Flist (2, args)); |
2431 | #else | |
2432 | report_file_error ("Making symbolic link", Flist (2, &filename)); | |
2433 | #endif | |
2434 | } | |
2435 | UNGCPRO; | |
2436 | return Qnil; | |
2437 | } | |
2438 | #endif /* S_IFLNK */ | |
2439 | ||
2440 | #ifdef VMS | |
2441 | ||
2442 | DEFUN ("define-logical-name", Fdefine_logical_name, Sdefine_logical_name, | |
2443 | 2, 2, "sDefine logical name: \nsDefine logical name %s as: ", | |
2444 | "Define the job-wide logical name NAME to have the value STRING.\n\ | |
2445 | If STRING is nil or a null string, the logical name NAME is deleted.") | |
3b7f6e60 EN |
2446 | (name, string) |
2447 | Lisp_Object name; | |
570d7624 JB |
2448 | Lisp_Object string; |
2449 | { | |
3b7f6e60 | 2450 | CHECK_STRING (name, 0); |
265a9e55 | 2451 | if (NILP (string)) |
3b7f6e60 | 2452 | delete_logical_name (XSTRING (name)->data); |
570d7624 JB |
2453 | else |
2454 | { | |
2455 | CHECK_STRING (string, 1); | |
2456 | ||
2457 | if (XSTRING (string)->size == 0) | |
3b7f6e60 | 2458 | delete_logical_name (XSTRING (name)->data); |
570d7624 | 2459 | else |
3b7f6e60 | 2460 | define_logical_name (XSTRING (name)->data, XSTRING (string)->data); |
570d7624 JB |
2461 | } |
2462 | ||
2463 | return string; | |
2464 | } | |
2465 | #endif /* VMS */ | |
2466 | ||
2467 | #ifdef HPUX_NET | |
2468 | ||
2469 | DEFUN ("sysnetunam", Fsysnetunam, Ssysnetunam, 2, 2, 0, | |
2470 | "Open a network connection to PATH using LOGIN as the login string.") | |
2471 | (path, login) | |
2472 | Lisp_Object path, login; | |
2473 | { | |
2474 | int netresult; | |
199607e4 | 2475 | |
570d7624 | 2476 | CHECK_STRING (path, 0); |
199607e4 RS |
2477 | CHECK_STRING (login, 0); |
2478 | ||
570d7624 JB |
2479 | netresult = netunam (XSTRING (path)->data, XSTRING (login)->data); |
2480 | ||
2481 | if (netresult == -1) | |
2482 | return Qnil; | |
2483 | else | |
2484 | return Qt; | |
2485 | } | |
2486 | #endif /* HPUX_NET */ | |
2487 | \f | |
2488 | DEFUN ("file-name-absolute-p", Ffile_name_absolute_p, Sfile_name_absolute_p, | |
2489 | 1, 1, 0, | |
199607e4 | 2490 | "Return t if file FILENAME specifies an absolute file name.\n\ |
570d7624 JB |
2491 | On Unix, this is a name starting with a `/' or a `~'.") |
2492 | (filename) | |
2493 | Lisp_Object filename; | |
2494 | { | |
2495 | unsigned char *ptr; | |
2496 | ||
2497 | CHECK_STRING (filename, 0); | |
2498 | ptr = XSTRING (filename)->data; | |
5e570b75 | 2499 | if (IS_DIRECTORY_SEP (*ptr) || *ptr == '~' |
570d7624 JB |
2500 | #ifdef VMS |
2501 | /* ??? This criterion is probably wrong for '<'. */ | |
2502 | || index (ptr, ':') || index (ptr, '<') | |
2503 | || (*ptr == '[' && (ptr[1] != '-' || (ptr[2] != '.' && ptr[2] != ']')) | |
2504 | && ptr[1] != '.') | |
2505 | #endif /* VMS */ | |
5e570b75 | 2506 | #ifdef DOS_NT |
199607e4 | 2507 | || (IS_DRIVE (*ptr) && ptr[1] == ':' && IS_DIRECTORY_SEP (ptr[2])) |
4c3c22f3 | 2508 | #endif |
570d7624 JB |
2509 | ) |
2510 | return Qt; | |
2511 | else | |
2512 | return Qnil; | |
2513 | } | |
3beeedfe RS |
2514 | \f |
2515 | /* Return nonzero if file FILENAME exists and can be executed. */ | |
2516 | ||
2517 | static int | |
2518 | check_executable (filename) | |
2519 | char *filename; | |
2520 | { | |
3be3c08e RS |
2521 | #ifdef DOS_NT |
2522 | int len = strlen (filename); | |
2523 | char *suffix; | |
2524 | struct stat st; | |
2525 | if (stat (filename, &st) < 0) | |
2526 | return 0; | |
34ead71a | 2527 | #if defined (WINDOWSNT) || (defined (MSDOS) && __DJGPP__ > 1) |
199607e4 RS |
2528 | return ((st.st_mode & S_IEXEC) != 0); |
2529 | #else | |
3be3c08e RS |
2530 | return (S_ISREG (st.st_mode) |
2531 | && len >= 5 | |
2532 | && (stricmp ((suffix = filename + len-4), ".com") == 0 | |
2533 | || stricmp (suffix, ".exe") == 0 | |
2dc3be7e RS |
2534 | || stricmp (suffix, ".bat") == 0) |
2535 | || (st.st_mode & S_IFMT) == S_IFDIR); | |
199607e4 | 2536 | #endif /* not WINDOWSNT */ |
3be3c08e | 2537 | #else /* not DOS_NT */ |
de0be7dd RS |
2538 | #ifdef HAVE_EUIDACCESS |
2539 | return (euidaccess (filename, 1) >= 0); | |
3beeedfe RS |
2540 | #else |
2541 | /* Access isn't quite right because it uses the real uid | |
2542 | and we really want to test with the effective uid. | |
2543 | But Unix doesn't give us a right way to do it. */ | |
2544 | return (access (filename, 1) >= 0); | |
2545 | #endif | |
3be3c08e | 2546 | #endif /* not DOS_NT */ |
3beeedfe RS |
2547 | } |
2548 | ||
2549 | /* Return nonzero if file FILENAME exists and can be written. */ | |
2550 | ||
2551 | static int | |
2552 | check_writable (filename) | |
2553 | char *filename; | |
2554 | { | |
3be3c08e RS |
2555 | #ifdef MSDOS |
2556 | struct stat st; | |
2557 | if (stat (filename, &st) < 0) | |
2558 | return 0; | |
2559 | return (st.st_mode & S_IWRITE || (st.st_mode & S_IFMT) == S_IFDIR); | |
2560 | #else /* not MSDOS */ | |
41f3fb38 KH |
2561 | #ifdef HAVE_EUIDACCESS |
2562 | return (euidaccess (filename, 2) >= 0); | |
3beeedfe RS |
2563 | #else |
2564 | /* Access isn't quite right because it uses the real uid | |
2565 | and we really want to test with the effective uid. | |
2566 | But Unix doesn't give us a right way to do it. | |
2567 | Opening with O_WRONLY could work for an ordinary file, | |
2568 | but would lose for directories. */ | |
2569 | return (access (filename, 2) >= 0); | |
2570 | #endif | |
3be3c08e | 2571 | #endif /* not MSDOS */ |
3beeedfe | 2572 | } |
570d7624 JB |
2573 | |
2574 | DEFUN ("file-exists-p", Ffile_exists_p, Sfile_exists_p, 1, 1, 0, | |
2575 | "Return t if file FILENAME exists. (This does not mean you can read it.)\n\ | |
2576 | See also `file-readable-p' and `file-attributes'.") | |
2577 | (filename) | |
2578 | Lisp_Object filename; | |
2579 | { | |
199607e4 | 2580 | Lisp_Object absname; |
32f4334d | 2581 | Lisp_Object handler; |
4018b5ef | 2582 | struct stat statbuf; |
570d7624 JB |
2583 | |
2584 | CHECK_STRING (filename, 0); | |
199607e4 | 2585 | absname = Fexpand_file_name (filename, Qnil); |
32f4334d RS |
2586 | |
2587 | /* If the file name has special constructs in it, | |
2588 | call the corresponding file handler. */ | |
199607e4 | 2589 | handler = Ffind_file_name_handler (absname, Qfile_exists_p); |
32f4334d | 2590 | if (!NILP (handler)) |
199607e4 | 2591 | return call2 (handler, Qfile_exists_p, absname); |
32f4334d | 2592 | |
199607e4 | 2593 | return (stat (XSTRING (absname)->data, &statbuf) >= 0) ? Qt : Qnil; |
570d7624 JB |
2594 | } |
2595 | ||
2596 | DEFUN ("file-executable-p", Ffile_executable_p, Sfile_executable_p, 1, 1, 0, | |
2597 | "Return t if FILENAME can be executed by you.\n\ | |
8b235fde | 2598 | For a directory, this means you can access files in that directory.") |
570d7624 JB |
2599 | (filename) |
2600 | Lisp_Object filename; | |
2601 | ||
2602 | { | |
199607e4 | 2603 | Lisp_Object absname; |
32f4334d | 2604 | Lisp_Object handler; |
570d7624 JB |
2605 | |
2606 | CHECK_STRING (filename, 0); | |
199607e4 | 2607 | absname = Fexpand_file_name (filename, Qnil); |
32f4334d RS |
2608 | |
2609 | /* If the file name has special constructs in it, | |
2610 | call the corresponding file handler. */ | |
199607e4 | 2611 | handler = Ffind_file_name_handler (absname, Qfile_executable_p); |
32f4334d | 2612 | if (!NILP (handler)) |
199607e4 | 2613 | return call2 (handler, Qfile_executable_p, absname); |
32f4334d | 2614 | |
199607e4 | 2615 | return (check_executable (XSTRING (absname)->data) ? Qt : Qnil); |
570d7624 JB |
2616 | } |
2617 | ||
2618 | DEFUN ("file-readable-p", Ffile_readable_p, Sfile_readable_p, 1, 1, 0, | |
2619 | "Return t if file FILENAME exists and you can read it.\n\ | |
2620 | See also `file-exists-p' and `file-attributes'.") | |
2621 | (filename) | |
2622 | Lisp_Object filename; | |
2623 | { | |
199607e4 | 2624 | Lisp_Object absname; |
32f4334d | 2625 | Lisp_Object handler; |
4018b5ef | 2626 | int desc; |
bb369dc6 RS |
2627 | int flags; |
2628 | struct stat statbuf; | |
570d7624 JB |
2629 | |
2630 | CHECK_STRING (filename, 0); | |
199607e4 | 2631 | absname = Fexpand_file_name (filename, Qnil); |
32f4334d RS |
2632 | |
2633 | /* If the file name has special constructs in it, | |
2634 | call the corresponding file handler. */ | |
199607e4 | 2635 | handler = Ffind_file_name_handler (absname, Qfile_readable_p); |
32f4334d | 2636 | if (!NILP (handler)) |
199607e4 | 2637 | return call2 (handler, Qfile_readable_p, absname); |
32f4334d | 2638 | |
199607e4 RS |
2639 | #ifdef DOS_NT |
2640 | /* Under MS-DOS and Windows, open does not work for directories. */ | |
2641 | if (access (XSTRING (absname)->data, 0) == 0) | |
a8a7d065 RS |
2642 | return Qt; |
2643 | return Qnil; | |
199607e4 | 2644 | #else /* not DOS_NT */ |
bb369dc6 RS |
2645 | flags = O_RDONLY; |
2646 | #if defined (S_ISFIFO) && defined (O_NONBLOCK) | |
2647 | /* Opening a fifo without O_NONBLOCK can wait. | |
2648 | We don't want to wait. But we don't want to mess wth O_NONBLOCK | |
2649 | except in the case of a fifo, on a system which handles it. */ | |
2650 | desc = stat (XSTRING (absname)->data, &statbuf); | |
2651 | if (desc < 0) | |
2652 | return Qnil; | |
2653 | if (S_ISFIFO (statbuf.st_mode)) | |
2654 | flags |= O_NONBLOCK; | |
2655 | #endif | |
2656 | desc = open (XSTRING (absname)->data, flags); | |
4018b5ef RS |
2657 | if (desc < 0) |
2658 | return Qnil; | |
2659 | close (desc); | |
2660 | return Qt; | |
199607e4 | 2661 | #endif /* not DOS_NT */ |
570d7624 JB |
2662 | } |
2663 | ||
f793dc6c RS |
2664 | /* Having this before file-symlink-p mysteriously caused it to be forgotten |
2665 | on the RT/PC. */ | |
2666 | DEFUN ("file-writable-p", Ffile_writable_p, Sfile_writable_p, 1, 1, 0, | |
2667 | "Return t if file FILENAME can be written or created by you.") | |
2668 | (filename) | |
2669 | Lisp_Object filename; | |
2670 | { | |
199607e4 | 2671 | Lisp_Object absname, dir; |
f793dc6c RS |
2672 | Lisp_Object handler; |
2673 | struct stat statbuf; | |
2674 | ||
2675 | CHECK_STRING (filename, 0); | |
199607e4 | 2676 | absname = Fexpand_file_name (filename, Qnil); |
f793dc6c RS |
2677 | |
2678 | /* If the file name has special constructs in it, | |
2679 | call the corresponding file handler. */ | |
199607e4 | 2680 | handler = Ffind_file_name_handler (absname, Qfile_writable_p); |
f793dc6c | 2681 | if (!NILP (handler)) |
199607e4 | 2682 | return call2 (handler, Qfile_writable_p, absname); |
f793dc6c | 2683 | |
199607e4 RS |
2684 | if (stat (XSTRING (absname)->data, &statbuf) >= 0) |
2685 | return (check_writable (XSTRING (absname)->data) | |
f793dc6c | 2686 | ? Qt : Qnil); |
199607e4 | 2687 | dir = Ffile_name_directory (absname); |
f793dc6c RS |
2688 | #ifdef VMS |
2689 | if (!NILP (dir)) | |
2690 | dir = Fdirectory_file_name (dir); | |
2691 | #endif /* VMS */ | |
2692 | #ifdef MSDOS | |
2693 | if (!NILP (dir)) | |
2694 | dir = Fdirectory_file_name (dir); | |
2695 | #endif /* MSDOS */ | |
2696 | return (check_writable (!NILP (dir) ? (char *) XSTRING (dir)->data : "") | |
2697 | ? Qt : Qnil); | |
2698 | } | |
2699 | \f | |
1f8653eb RS |
2700 | DEFUN ("access-file", Faccess_file, Saccess_file, 2, 2, 0, |
2701 | "Access file FILENAME, and get an error if that does not work.\n\ | |
2702 | The second argument STRING is used in the error message.\n\ | |
2703 | If there is no error, we return nil.") | |
2704 | (filename, string) | |
2705 | Lisp_Object filename, string; | |
2706 | { | |
2707 | Lisp_Object handler; | |
2708 | int fd; | |
2709 | ||
2710 | CHECK_STRING (filename, 0); | |
2711 | ||
2712 | /* If the file name has special constructs in it, | |
2713 | call the corresponding file handler. */ | |
2714 | handler = Ffind_file_name_handler (filename, Qaccess_file); | |
2715 | if (!NILP (handler)) | |
2716 | return call3 (handler, Qaccess_file, filename, string); | |
2717 | ||
2718 | fd = open (XSTRING (filename)->data, O_RDONLY); | |
2719 | if (fd < 0) | |
2720 | report_file_error (XSTRING (string)->data, Fcons (filename, Qnil)); | |
2721 | close (fd); | |
2722 | ||
2723 | return Qnil; | |
2724 | } | |
2725 | \f | |
570d7624 | 2726 | DEFUN ("file-symlink-p", Ffile_symlink_p, Sfile_symlink_p, 1, 1, 0, |
89de89c7 RS |
2727 | "Return non-nil if file FILENAME is the name of a symbolic link.\n\ |
2728 | The value is the name of the file to which it is linked.\n\ | |
2729 | Otherwise returns nil.") | |
570d7624 JB |
2730 | (filename) |
2731 | Lisp_Object filename; | |
2732 | { | |
2733 | #ifdef S_IFLNK | |
2734 | char *buf; | |
2735 | int bufsize; | |
2736 | int valsize; | |
2737 | Lisp_Object val; | |
32f4334d | 2738 | Lisp_Object handler; |
570d7624 JB |
2739 | |
2740 | CHECK_STRING (filename, 0); | |
2741 | filename = Fexpand_file_name (filename, Qnil); | |
2742 | ||
32f4334d RS |
2743 | /* If the file name has special constructs in it, |
2744 | call the corresponding file handler. */ | |
49307295 | 2745 | handler = Ffind_file_name_handler (filename, Qfile_symlink_p); |
32f4334d RS |
2746 | if (!NILP (handler)) |
2747 | return call2 (handler, Qfile_symlink_p, filename); | |
2748 | ||
570d7624 JB |
2749 | bufsize = 100; |
2750 | while (1) | |
2751 | { | |
2752 | buf = (char *) xmalloc (bufsize); | |
2753 | bzero (buf, bufsize); | |
2754 | valsize = readlink (XSTRING (filename)->data, buf, bufsize); | |
2755 | if (valsize < bufsize) break; | |
2756 | /* Buffer was not long enough */ | |
9ac0d9e0 | 2757 | xfree (buf); |
570d7624 JB |
2758 | bufsize *= 2; |
2759 | } | |
2760 | if (valsize == -1) | |
2761 | { | |
9ac0d9e0 | 2762 | xfree (buf); |
570d7624 JB |
2763 | return Qnil; |
2764 | } | |
2765 | val = make_string (buf, valsize); | |
9ac0d9e0 | 2766 | xfree (buf); |
570d7624 JB |
2767 | return val; |
2768 | #else /* not S_IFLNK */ | |
2769 | return Qnil; | |
2770 | #endif /* not S_IFLNK */ | |
2771 | } | |
2772 | ||
570d7624 JB |
2773 | DEFUN ("file-directory-p", Ffile_directory_p, Sfile_directory_p, 1, 1, 0, |
2774 | "Return t if file FILENAME is the name of a directory as a file.\n\ | |
2775 | A directory name spec may be given instead; then the value is t\n\ | |
2776 | if the directory so specified exists and really is a directory.") | |
2777 | (filename) | |
2778 | Lisp_Object filename; | |
2779 | { | |
199607e4 | 2780 | register Lisp_Object absname; |
570d7624 | 2781 | struct stat st; |
32f4334d | 2782 | Lisp_Object handler; |
570d7624 | 2783 | |
199607e4 | 2784 | absname = expand_and_dir_to_file (filename, current_buffer->directory); |
570d7624 | 2785 | |
32f4334d RS |
2786 | /* If the file name has special constructs in it, |
2787 | call the corresponding file handler. */ | |
199607e4 | 2788 | handler = Ffind_file_name_handler (absname, Qfile_directory_p); |
32f4334d | 2789 | if (!NILP (handler)) |
199607e4 | 2790 | return call2 (handler, Qfile_directory_p, absname); |
32f4334d | 2791 | |
199607e4 | 2792 | if (stat (XSTRING (absname)->data, &st) < 0) |
570d7624 JB |
2793 | return Qnil; |
2794 | return (st.st_mode & S_IFMT) == S_IFDIR ? Qt : Qnil; | |
2795 | } | |
2796 | ||
b72dea2a JB |
2797 | DEFUN ("file-accessible-directory-p", Ffile_accessible_directory_p, Sfile_accessible_directory_p, 1, 1, 0, |
2798 | "Return t if file FILENAME is the name of a directory as a file,\n\ | |
2799 | and files in that directory can be opened by you. In order to use a\n\ | |
2800 | directory as a buffer's current directory, this predicate must return true.\n\ | |
2801 | A directory name spec may be given instead; then the value is t\n\ | |
2802 | if the directory so specified exists and really is a readable and\n\ | |
2803 | searchable directory.") | |
2804 | (filename) | |
2805 | Lisp_Object filename; | |
2806 | { | |
32f4334d | 2807 | Lisp_Object handler; |
1a04498e | 2808 | int tem; |
d26859eb | 2809 | struct gcpro gcpro1; |
32f4334d RS |
2810 | |
2811 | /* If the file name has special constructs in it, | |
2812 | call the corresponding file handler. */ | |
49307295 | 2813 | handler = Ffind_file_name_handler (filename, Qfile_accessible_directory_p); |
32f4334d RS |
2814 | if (!NILP (handler)) |
2815 | return call2 (handler, Qfile_accessible_directory_p, filename); | |
2816 | ||
d26859eb KH |
2817 | /* It's an unlikely combination, but yes we really do need to gcpro: |
2818 | Suppose that file-accessible-directory-p has no handler, but | |
2819 | file-directory-p does have a handler; this handler causes a GC which | |
2820 | relocates the string in `filename'; and finally file-directory-p | |
2821 | returns non-nil. Then we would end up passing a garbaged string | |
2822 | to file-executable-p. */ | |
2823 | GCPRO1 (filename); | |
1a04498e KH |
2824 | tem = (NILP (Ffile_directory_p (filename)) |
2825 | || NILP (Ffile_executable_p (filename))); | |
d26859eb | 2826 | UNGCPRO; |
1a04498e | 2827 | return tem ? Qnil : Qt; |
b72dea2a JB |
2828 | } |
2829 | ||
f793dc6c RS |
2830 | DEFUN ("file-regular-p", Ffile_regular_p, Sfile_regular_p, 1, 1, 0, |
2831 | "Return t if file FILENAME is the name of a regular file.\n\ | |
2832 | This is the sort of file that holds an ordinary stream of data bytes.") | |
2833 | (filename) | |
2834 | Lisp_Object filename; | |
2835 | { | |
199607e4 | 2836 | register Lisp_Object absname; |
f793dc6c RS |
2837 | struct stat st; |
2838 | Lisp_Object handler; | |
2839 | ||
199607e4 | 2840 | absname = expand_and_dir_to_file (filename, current_buffer->directory); |
f793dc6c RS |
2841 | |
2842 | /* If the file name has special constructs in it, | |
2843 | call the corresponding file handler. */ | |
199607e4 | 2844 | handler = Ffind_file_name_handler (absname, Qfile_regular_p); |
f793dc6c | 2845 | if (!NILP (handler)) |
199607e4 | 2846 | return call2 (handler, Qfile_regular_p, absname); |
f793dc6c | 2847 | |
199607e4 | 2848 | if (stat (XSTRING (absname)->data, &st) < 0) |
f793dc6c RS |
2849 | return Qnil; |
2850 | return (st.st_mode & S_IFMT) == S_IFREG ? Qt : Qnil; | |
2851 | } | |
2852 | \f | |
570d7624 | 2853 | DEFUN ("file-modes", Ffile_modes, Sfile_modes, 1, 1, 0, |
3b7f6e60 | 2854 | "Return mode bits of file named FILENAME, as an integer.") |
570d7624 JB |
2855 | (filename) |
2856 | Lisp_Object filename; | |
2857 | { | |
199607e4 | 2858 | Lisp_Object absname; |
570d7624 | 2859 | struct stat st; |
32f4334d | 2860 | Lisp_Object handler; |
570d7624 | 2861 | |
199607e4 | 2862 | absname = expand_and_dir_to_file (filename, current_buffer->directory); |
570d7624 | 2863 | |
32f4334d RS |
2864 | /* If the file name has special constructs in it, |
2865 | call the corresponding file handler. */ | |
199607e4 | 2866 | handler = Ffind_file_name_handler (absname, Qfile_modes); |
32f4334d | 2867 | if (!NILP (handler)) |
199607e4 | 2868 | return call2 (handler, Qfile_modes, absname); |
32f4334d | 2869 | |
199607e4 | 2870 | if (stat (XSTRING (absname)->data, &st) < 0) |
570d7624 | 2871 | return Qnil; |
34ead71a | 2872 | #if defined (MSDOS) && __DJGPP__ < 2 |
199607e4 | 2873 | if (check_executable (XSTRING (absname)->data)) |
3be3c08e | 2874 | st.st_mode |= S_IEXEC; |
34ead71a | 2875 | #endif /* MSDOS && __DJGPP__ < 2 */ |
3ace87e3 | 2876 | |
570d7624 JB |
2877 | return make_number (st.st_mode & 07777); |
2878 | } | |
2879 | ||
2880 | DEFUN ("set-file-modes", Fset_file_modes, Sset_file_modes, 2, 2, 0, | |
3b7f6e60 | 2881 | "Set mode bits of file named FILENAME to MODE (an integer).\n\ |
570d7624 JB |
2882 | Only the 12 low bits of MODE are used.") |
2883 | (filename, mode) | |
2884 | Lisp_Object filename, mode; | |
2885 | { | |
199607e4 | 2886 | Lisp_Object absname; |
32f4334d | 2887 | Lisp_Object handler; |
570d7624 | 2888 | |
199607e4 | 2889 | absname = Fexpand_file_name (filename, current_buffer->directory); |
570d7624 JB |
2890 | CHECK_NUMBER (mode, 1); |
2891 | ||
32f4334d RS |
2892 | /* If the file name has special constructs in it, |
2893 | call the corresponding file handler. */ | |
199607e4 | 2894 | handler = Ffind_file_name_handler (absname, Qset_file_modes); |
32f4334d | 2895 | if (!NILP (handler)) |
199607e4 | 2896 | return call3 (handler, Qset_file_modes, absname, mode); |
32f4334d | 2897 | |
199607e4 RS |
2898 | if (chmod (XSTRING (absname)->data, XINT (mode)) < 0) |
2899 | report_file_error ("Doing chmod", Fcons (absname, Qnil)); | |
570d7624 JB |
2900 | |
2901 | return Qnil; | |
2902 | } | |
2903 | ||
c24e9a53 | 2904 | DEFUN ("set-default-file-modes", Fset_default_file_modes, Sset_default_file_modes, 1, 1, 0, |
5f85ea58 RS |
2905 | "Set the file permission bits for newly created files.\n\ |
2906 | The argument MODE should be an integer; only the low 9 bits are used.\n\ | |
36a8c287 | 2907 | This setting is inherited by subprocesses.") |
5f85ea58 RS |
2908 | (mode) |
2909 | Lisp_Object mode; | |
36a8c287 | 2910 | { |
5f85ea58 | 2911 | CHECK_NUMBER (mode, 0); |
199607e4 | 2912 | |
5f85ea58 | 2913 | umask ((~ XINT (mode)) & 0777); |
36a8c287 JB |
2914 | |
2915 | return Qnil; | |
2916 | } | |
2917 | ||
c24e9a53 | 2918 | DEFUN ("default-file-modes", Fdefault_file_modes, Sdefault_file_modes, 0, 0, 0, |
5f85ea58 RS |
2919 | "Return the default file protection for created files.\n\ |
2920 | The value is an integer.") | |
36a8c287 JB |
2921 | () |
2922 | { | |
5f85ea58 RS |
2923 | int realmask; |
2924 | Lisp_Object value; | |
36a8c287 | 2925 | |
5f85ea58 RS |
2926 | realmask = umask (0); |
2927 | umask (realmask); | |
36a8c287 | 2928 | |
46283abe | 2929 | XSETINT (value, (~ realmask) & 0777); |
5f85ea58 | 2930 | return value; |
36a8c287 | 2931 | } |
f793dc6c | 2932 | \f |
85ffea93 RS |
2933 | #ifdef unix |
2934 | ||
2935 | DEFUN ("unix-sync", Funix_sync, Sunix_sync, 0, 0, "", | |
2936 | "Tell Unix to finish all pending disk updates.") | |
2937 | () | |
2938 | { | |
2939 | sync (); | |
2940 | return Qnil; | |
2941 | } | |
2942 | ||
2943 | #endif /* unix */ | |
2944 | ||
570d7624 JB |
2945 | DEFUN ("file-newer-than-file-p", Ffile_newer_than_file_p, Sfile_newer_than_file_p, 2, 2, 0, |
2946 | "Return t if file FILE1 is newer than file FILE2.\n\ | |
2947 | If FILE1 does not exist, the answer is nil;\n\ | |
2948 | otherwise, if FILE2 does not exist, the answer is t.") | |
2949 | (file1, file2) | |
2950 | Lisp_Object file1, file2; | |
2951 | { | |
199607e4 | 2952 | Lisp_Object absname1, absname2; |
570d7624 JB |
2953 | struct stat st; |
2954 | int mtime1; | |
32f4334d | 2955 | Lisp_Object handler; |
09121adc | 2956 | struct gcpro gcpro1, gcpro2; |
570d7624 JB |
2957 | |
2958 | CHECK_STRING (file1, 0); | |
2959 | CHECK_STRING (file2, 0); | |
2960 | ||
199607e4 RS |
2961 | absname1 = Qnil; |
2962 | GCPRO2 (absname1, file2); | |
2963 | absname1 = expand_and_dir_to_file (file1, current_buffer->directory); | |
2964 | absname2 = expand_and_dir_to_file (file2, current_buffer->directory); | |
09121adc | 2965 | UNGCPRO; |
570d7624 | 2966 | |
32f4334d RS |
2967 | /* If the file name has special constructs in it, |
2968 | call the corresponding file handler. */ | |
199607e4 | 2969 | handler = Ffind_file_name_handler (absname1, Qfile_newer_than_file_p); |
51cf6d37 | 2970 | if (NILP (handler)) |
199607e4 | 2971 | handler = Ffind_file_name_handler (absname2, Qfile_newer_than_file_p); |
32f4334d | 2972 | if (!NILP (handler)) |
199607e4 | 2973 | return call3 (handler, Qfile_newer_than_file_p, absname1, absname2); |
32f4334d | 2974 | |
199607e4 | 2975 | if (stat (XSTRING (absname1)->data, &st) < 0) |
570d7624 JB |
2976 | return Qnil; |
2977 | ||
2978 | mtime1 = st.st_mtime; | |
2979 | ||
199607e4 | 2980 | if (stat (XSTRING (absname2)->data, &st) < 0) |
570d7624 JB |
2981 | return Qt; |
2982 | ||
2983 | return (mtime1 > st.st_mtime) ? Qt : Qnil; | |
2984 | } | |
2985 | \f | |
5e570b75 | 2986 | #ifdef DOS_NT |
4c3c22f3 | 2987 | Lisp_Object Qfind_buffer_file_type; |
5e570b75 | 2988 | #endif /* DOS_NT */ |
4c3c22f3 | 2989 | |
570d7624 | 2990 | DEFUN ("insert-file-contents", Finsert_file_contents, Sinsert_file_contents, |
3d0387c0 | 2991 | 1, 5, 0, |
570d7624 | 2992 | "Insert contents of file FILENAME after point.\n\ |
7fded690 | 2993 | Returns list of absolute file name and length of data inserted.\n\ |
570d7624 JB |
2994 | If second argument VISIT is non-nil, the buffer's visited filename\n\ |
2995 | and last save file modtime are set, and it is marked unmodified.\n\ | |
2996 | If visiting and the file does not exist, visiting is completed\n\ | |
7fded690 JB |
2997 | before the error is signaled.\n\n\ |
2998 | The optional third and fourth arguments BEG and END\n\ | |
2999 | specify what portion of the file to insert.\n\ | |
3d0387c0 RS |
3000 | If VISIT is non-nil, BEG and END must be nil.\n\ |
3001 | If optional fifth argument REPLACE is non-nil,\n\ | |
3002 | it means replace the current buffer contents (in the accessible portion)\n\ | |
3003 | with the file contents. This is better than simply deleting and inserting\n\ | |
3004 | the whole thing because (1) it preserves some marker positions\n\ | |
3005 | and (2) it puts less data in the undo list.") | |
3006 | (filename, visit, beg, end, replace) | |
3007 | Lisp_Object filename, visit, beg, end, replace; | |
570d7624 JB |
3008 | { |
3009 | struct stat st; | |
3010 | register int fd; | |
3011 | register int inserted = 0; | |
3012 | register int how_much; | |
3013 | int count = specpdl_ptr - specpdl; | |
1a04498e | 3014 | struct gcpro gcpro1, gcpro2, gcpro3; |
d6a3cc15 RS |
3015 | Lisp_Object handler, val, insval; |
3016 | Lisp_Object p; | |
7fded690 | 3017 | int total; |
53c34c46 | 3018 | int not_regular = 0; |
32f4334d | 3019 | |
95385625 RS |
3020 | if (current_buffer->base_buffer && ! NILP (visit)) |
3021 | error ("Cannot do file visiting in an indirect buffer"); | |
3022 | ||
3023 | if (!NILP (current_buffer->read_only)) | |
3024 | Fbarf_if_buffer_read_only (); | |
3025 | ||
32f4334d | 3026 | val = Qnil; |
d6a3cc15 | 3027 | p = Qnil; |
32f4334d | 3028 | |
1a04498e | 3029 | GCPRO3 (filename, val, p); |
570d7624 JB |
3030 | |
3031 | CHECK_STRING (filename, 0); | |
3032 | filename = Fexpand_file_name (filename, Qnil); | |
3033 | ||
32f4334d RS |
3034 | /* If the file name has special constructs in it, |
3035 | call the corresponding file handler. */ | |
49307295 | 3036 | handler = Ffind_file_name_handler (filename, Qinsert_file_contents); |
32f4334d RS |
3037 | if (!NILP (handler)) |
3038 | { | |
3d0387c0 RS |
3039 | val = call6 (handler, Qinsert_file_contents, filename, |
3040 | visit, beg, end, replace); | |
32f4334d RS |
3041 | goto handled; |
3042 | } | |
3043 | ||
570d7624 JB |
3044 | fd = -1; |
3045 | ||
3046 | #ifndef APOLLO | |
99bc28f4 | 3047 | if (stat (XSTRING (filename)->data, &st) < 0) |
570d7624 | 3048 | #else |
4018b5ef | 3049 | if ((fd = open (XSTRING (filename)->data, O_RDONLY)) < 0 |
570d7624 JB |
3050 | || fstat (fd, &st) < 0) |
3051 | #endif /* not APOLLO */ | |
3052 | { | |
3053 | if (fd >= 0) close (fd); | |
99bc28f4 | 3054 | badopen: |
265a9e55 | 3055 | if (NILP (visit)) |
570d7624 JB |
3056 | report_file_error ("Opening input file", Fcons (filename, Qnil)); |
3057 | st.st_mtime = -1; | |
3058 | how_much = 0; | |
3059 | goto notfound; | |
3060 | } | |
3061 | ||
99bc28f4 | 3062 | #ifdef S_IFREG |
be53b411 JB |
3063 | /* This code will need to be changed in order to work on named |
3064 | pipes, and it's probably just not worth it. So we should at | |
3065 | least signal an error. */ | |
99bc28f4 | 3066 | if (!S_ISREG (st.st_mode)) |
330bfe57 RS |
3067 | { |
3068 | if (NILP (visit)) | |
3069 | Fsignal (Qfile_error, | |
3070 | Fcons (build_string ("not a regular file"), | |
3071 | Fcons (filename, Qnil))); | |
3072 | ||
3073 | not_regular = 1; | |
3074 | goto notfound; | |
3075 | } | |
be53b411 JB |
3076 | #endif |
3077 | ||
99bc28f4 | 3078 | if (fd < 0) |
4018b5ef | 3079 | if ((fd = open (XSTRING (filename)->data, O_RDONLY)) < 0) |
99bc28f4 KH |
3080 | goto badopen; |
3081 | ||
3082 | /* Replacement should preserve point as it preserves markers. */ | |
3083 | if (!NILP (replace)) | |
3084 | record_unwind_protect (restore_point_unwind, Fpoint_marker ()); | |
3085 | ||
3086 | record_unwind_protect (close_file_unwind, make_number (fd)); | |
3087 | ||
570d7624 JB |
3088 | /* Supposedly happens on VMS. */ |
3089 | if (st.st_size < 0) | |
3090 | error ("File size is negative"); | |
be53b411 | 3091 | |
7fded690 JB |
3092 | if (!NILP (beg) || !NILP (end)) |
3093 | if (!NILP (visit)) | |
3094 | error ("Attempt to visit less than an entire file"); | |
3095 | ||
3096 | if (!NILP (beg)) | |
3097 | CHECK_NUMBER (beg, 0); | |
3098 | else | |
2acfd7ae | 3099 | XSETFASTINT (beg, 0); |
7fded690 JB |
3100 | |
3101 | if (!NILP (end)) | |
3102 | CHECK_NUMBER (end, 0); | |
3103 | else | |
3104 | { | |
3105 | XSETINT (end, st.st_size); | |
3106 | if (XINT (end) != st.st_size) | |
3107 | error ("maximum buffer size exceeded"); | |
3108 | } | |
3109 | ||
3d0387c0 RS |
3110 | /* If requested, replace the accessible part of the buffer |
3111 | with the file contents. Avoid replacing text at the | |
3112 | beginning or end of the buffer that matches the file contents; | |
3113 | that preserves markers pointing to the unchanged parts. */ | |
5e570b75 | 3114 | #ifdef DOS_NT |
e54d3b5d RS |
3115 | /* On MSDOS, replace mode doesn't really work, except for binary files, |
3116 | and it's not worth supporting just for them. */ | |
3117 | if (!NILP (replace)) | |
3118 | { | |
3119 | replace = Qnil; | |
2acfd7ae KH |
3120 | XSETFASTINT (beg, 0); |
3121 | XSETFASTINT (end, st.st_size); | |
e54d3b5d RS |
3122 | del_range_1 (BEGV, ZV, 0); |
3123 | } | |
5e570b75 | 3124 | #else /* not DOS_NT */ |
3d0387c0 RS |
3125 | if (!NILP (replace)) |
3126 | { | |
268466ed | 3127 | unsigned char buffer[1 << 14]; |
3d0387c0 RS |
3128 | int same_at_start = BEGV; |
3129 | int same_at_end = ZV; | |
9c28748f RS |
3130 | int overlap; |
3131 | ||
3d0387c0 RS |
3132 | immediate_quit = 1; |
3133 | QUIT; | |
3134 | /* Count how many chars at the start of the file | |
3135 | match the text at the beginning of the buffer. */ | |
3136 | while (1) | |
3137 | { | |
3138 | int nread, bufpos; | |
3139 | ||
3140 | nread = read (fd, buffer, sizeof buffer); | |
3141 | if (nread < 0) | |
3142 | error ("IO error reading %s: %s", | |
3143 | XSTRING (filename)->data, strerror (errno)); | |
3144 | else if (nread == 0) | |
3145 | break; | |
3146 | bufpos = 0; | |
3147 | while (bufpos < nread && same_at_start < ZV | |
3148 | && FETCH_CHAR (same_at_start) == buffer[bufpos]) | |
3149 | same_at_start++, bufpos++; | |
3150 | /* If we found a discrepancy, stop the scan. | |
8e6208c5 | 3151 | Otherwise loop around and scan the next bufferful. */ |
3d0387c0 RS |
3152 | if (bufpos != nread) |
3153 | break; | |
3154 | } | |
3155 | immediate_quit = 0; | |
3156 | /* If the file matches the buffer completely, | |
3157 | there's no need to replace anything. */ | |
1051b3b3 | 3158 | if (same_at_start - BEGV == st.st_size) |
3d0387c0 RS |
3159 | { |
3160 | close (fd); | |
a1d2b64a | 3161 | specpdl_ptr--; |
1051b3b3 RS |
3162 | /* Truncate the buffer to the size of the file. */ |
3163 | del_range_1 (same_at_start, same_at_end, 0); | |
3d0387c0 RS |
3164 | goto handled; |
3165 | } | |
3166 | immediate_quit = 1; | |
3167 | QUIT; | |
3168 | /* Count how many chars at the end of the file | |
3169 | match the text at the end of the buffer. */ | |
3170 | while (1) | |
3171 | { | |
3172 | int total_read, nread, bufpos, curpos, trial; | |
3173 | ||
3174 | /* At what file position are we now scanning? */ | |
3175 | curpos = st.st_size - (ZV - same_at_end); | |
fc81fa9e KH |
3176 | /* If the entire file matches the buffer tail, stop the scan. */ |
3177 | if (curpos == 0) | |
3178 | break; | |
3d0387c0 RS |
3179 | /* How much can we scan in the next step? */ |
3180 | trial = min (curpos, sizeof buffer); | |
3181 | if (lseek (fd, curpos - trial, 0) < 0) | |
3182 | report_file_error ("Setting file position", | |
3183 | Fcons (filename, Qnil)); | |
3184 | ||
3185 | total_read = 0; | |
3186 | while (total_read < trial) | |
3187 | { | |
3188 | nread = read (fd, buffer + total_read, trial - total_read); | |
3189 | if (nread <= 0) | |
3190 | error ("IO error reading %s: %s", | |
3191 | XSTRING (filename)->data, strerror (errno)); | |
3192 | total_read += nread; | |
3193 | } | |
8e6208c5 | 3194 | /* Scan this bufferful from the end, comparing with |
3d0387c0 RS |
3195 | the Emacs buffer. */ |
3196 | bufpos = total_read; | |
3197 | /* Compare with same_at_start to avoid counting some buffer text | |
3198 | as matching both at the file's beginning and at the end. */ | |
3199 | while (bufpos > 0 && same_at_end > same_at_start | |
3200 | && FETCH_CHAR (same_at_end - 1) == buffer[bufpos - 1]) | |
3201 | same_at_end--, bufpos--; | |
3202 | /* If we found a discrepancy, stop the scan. | |
8e6208c5 | 3203 | Otherwise loop around and scan the preceding bufferful. */ |
3d0387c0 RS |
3204 | if (bufpos != 0) |
3205 | break; | |
26fb39b5 RS |
3206 | /* If display current starts at beginning of line, |
3207 | keep it that way. */ | |
3208 | if (XBUFFER (XWINDOW (selected_window)->buffer) == current_buffer) | |
3209 | XWINDOW (selected_window)->start_at_line_beg = Fbolp (); | |
3d0387c0 RS |
3210 | } |
3211 | immediate_quit = 0; | |
9c28748f RS |
3212 | |
3213 | /* Don't try to reuse the same piece of text twice. */ | |
3214 | overlap = same_at_start - BEGV - (same_at_end + st.st_size - ZV); | |
3215 | if (overlap > 0) | |
3216 | same_at_end += overlap; | |
3217 | ||
3d0387c0 | 3218 | /* Arrange to read only the nonmatching middle part of the file. */ |
2acfd7ae KH |
3219 | XSETFASTINT (beg, same_at_start - BEGV); |
3220 | XSETFASTINT (end, st.st_size - (ZV - same_at_end)); | |
9c28748f | 3221 | |
251f623e | 3222 | del_range_1 (same_at_start, same_at_end, 0); |
a1d2b64a RS |
3223 | /* Insert from the file at the proper position. */ |
3224 | SET_PT (same_at_start); | |
3d0387c0 | 3225 | } |
5e570b75 | 3226 | #endif /* not DOS_NT */ |
3d0387c0 | 3227 | |
7fded690 JB |
3228 | total = XINT (end) - XINT (beg); |
3229 | ||
570d7624 JB |
3230 | { |
3231 | register Lisp_Object temp; | |
3232 | ||
3233 | /* Make sure point-max won't overflow after this insertion. */ | |
46283abe | 3234 | XSETINT (temp, total); |
7fded690 | 3235 | if (total != XINT (temp)) |
570d7624 JB |
3236 | error ("maximum buffer size exceeded"); |
3237 | } | |
3238 | ||
57d8d468 | 3239 | if (NILP (visit) && total > 0) |
7fe52289 | 3240 | prepare_to_modify_buffer (PT, PT); |
570d7624 | 3241 | |
7fe52289 | 3242 | move_gap (PT); |
7fded690 JB |
3243 | if (GAP_SIZE < total) |
3244 | make_gap (total - GAP_SIZE); | |
3245 | ||
a1d2b64a | 3246 | if (XINT (beg) != 0 || !NILP (replace)) |
7fded690 JB |
3247 | { |
3248 | if (lseek (fd, XINT (beg), 0) < 0) | |
3249 | report_file_error ("Setting file position", Fcons (filename, Qnil)); | |
3250 | } | |
3251 | ||
a1d2b64a RS |
3252 | how_much = 0; |
3253 | while (inserted < total) | |
570d7624 | 3254 | { |
5e570b75 RS |
3255 | /* try is reserved in some compilers (Microsoft C) */ |
3256 | int trytry = min (total - inserted, 64 << 10); | |
b5148e85 RS |
3257 | int this; |
3258 | ||
3259 | /* Allow quitting out of the actual I/O. */ | |
3260 | immediate_quit = 1; | |
3261 | QUIT; | |
7fe52289 | 3262 | this = read (fd, &FETCH_CHAR (PT + inserted - 1) + 1, trytry); |
b5148e85 | 3263 | immediate_quit = 0; |
570d7624 JB |
3264 | |
3265 | if (this <= 0) | |
3266 | { | |
3267 | how_much = this; | |
3268 | break; | |
3269 | } | |
3270 | ||
3271 | GPT += this; | |
3272 | GAP_SIZE -= this; | |
3273 | ZV += this; | |
3274 | Z += this; | |
3275 | inserted += this; | |
3276 | } | |
3277 | ||
5e570b75 | 3278 | #ifdef DOS_NT |
4c3c22f3 RS |
3279 | /* Demacs 1.1.1 91/10/16 HIRANO Satoshi, MW July 1993 */ |
3280 | /* Determine file type from name and remove LFs from CR-LFs if the file | |
3281 | is deemed to be a text file. */ | |
3282 | { | |
bf162ea8 RS |
3283 | current_buffer->buffer_file_type |
3284 | = call1 (Qfind_buffer_file_type, filename); | |
bf162ea8 | 3285 | if (NILP (current_buffer->buffer_file_type)) |
4c3c22f3 | 3286 | { |
a1d2b64a | 3287 | int reduced_size |
7fe52289 | 3288 | = inserted - crlf_to_lf (inserted, &FETCH_CHAR (PT - 1) + 1); |
4c3c22f3 RS |
3289 | ZV -= reduced_size; |
3290 | Z -= reduced_size; | |
3291 | GPT -= reduced_size; | |
3292 | GAP_SIZE += reduced_size; | |
3293 | inserted -= reduced_size; | |
3294 | } | |
3295 | } | |
5e570b75 | 3296 | #endif /* DOS_NT */ |
4c3c22f3 | 3297 | |
570d7624 | 3298 | if (inserted > 0) |
7d8451f1 | 3299 | { |
7fe52289 | 3300 | record_insert (PT, inserted); |
8d4e077b JA |
3301 | |
3302 | /* Only defined if Emacs is compiled with USE_TEXT_PROPERTIES */ | |
7fe52289 | 3303 | offset_intervals (current_buffer, PT, inserted); |
7d8451f1 RS |
3304 | MODIFF++; |
3305 | } | |
570d7624 JB |
3306 | |
3307 | close (fd); | |
3308 | ||
a1d2b64a RS |
3309 | /* Discard the unwind protect for closing the file. */ |
3310 | specpdl_ptr--; | |
570d7624 JB |
3311 | |
3312 | if (how_much < 0) | |
3313 | error ("IO error reading %s: %s", | |
ce97267f | 3314 | XSTRING (filename)->data, strerror (errno)); |
570d7624 JB |
3315 | |
3316 | notfound: | |
32f4334d | 3317 | handled: |
570d7624 | 3318 | |
265a9e55 | 3319 | if (!NILP (visit)) |
570d7624 | 3320 | { |
cfadd376 RS |
3321 | if (!EQ (current_buffer->undo_list, Qt)) |
3322 | current_buffer->undo_list = Qnil; | |
570d7624 JB |
3323 | #ifdef APOLLO |
3324 | stat (XSTRING (filename)->data, &st); | |
3325 | #endif | |
62bcf009 | 3326 | |
a7e82472 RS |
3327 | if (NILP (handler)) |
3328 | { | |
3329 | current_buffer->modtime = st.st_mtime; | |
3330 | current_buffer->filename = filename; | |
3331 | } | |
62bcf009 | 3332 | |
95385625 | 3333 | SAVE_MODIFF = MODIFF; |
570d7624 | 3334 | current_buffer->auto_save_modified = MODIFF; |
2acfd7ae | 3335 | XSETFASTINT (current_buffer->save_length, Z - BEG); |
570d7624 | 3336 | #ifdef CLASH_DETECTION |
32f4334d RS |
3337 | if (NILP (handler)) |
3338 | { | |
f471f4c2 RS |
3339 | if (!NILP (current_buffer->file_truename)) |
3340 | unlock_file (current_buffer->file_truename); | |
32f4334d RS |
3341 | unlock_file (filename); |
3342 | } | |
570d7624 | 3343 | #endif /* CLASH_DETECTION */ |
330bfe57 RS |
3344 | if (not_regular) |
3345 | Fsignal (Qfile_error, | |
3346 | Fcons (build_string ("not a regular file"), | |
3347 | Fcons (filename, Qnil))); | |
3348 | ||
570d7624 | 3349 | /* If visiting nonexistent file, return nil. */ |
32f4334d | 3350 | if (current_buffer->modtime == -1) |
570d7624 JB |
3351 | report_file_error ("Opening input file", Fcons (filename, Qnil)); |
3352 | } | |
3353 | ||
0d420e88 BG |
3354 | /* Decode file format */ |
3355 | if (inserted > 0) | |
3356 | { | |
199607e4 | 3357 | insval = call3 (Qformat_decode, |
0d420e88 BG |
3358 | Qnil, make_number (inserted), visit); |
3359 | CHECK_NUMBER (insval, 0); | |
3360 | inserted = XFASTINT (insval); | |
3361 | } | |
3362 | ||
62bcf009 | 3363 | if (inserted > 0 && NILP (visit) && total > 0) |
7fe52289 | 3364 | signal_after_change (PT, 0, inserted); |
199607e4 | 3365 | |
d6a3cc15 RS |
3366 | if (inserted > 0) |
3367 | { | |
3368 | p = Vafter_insert_file_functions; | |
3369 | while (!NILP (p)) | |
3370 | { | |
3371 | insval = call1 (Fcar (p), make_number (inserted)); | |
3372 | if (!NILP (insval)) | |
3373 | { | |
3374 | CHECK_NUMBER (insval, 0); | |
3375 | inserted = XFASTINT (insval); | |
3376 | } | |
3377 | QUIT; | |
3378 | p = Fcdr (p); | |
3379 | } | |
3380 | } | |
3381 | ||
a1d2b64a RS |
3382 | if (NILP (val)) |
3383 | val = Fcons (filename, | |
3384 | Fcons (make_number (inserted), | |
3385 | Qnil)); | |
3386 | ||
3387 | RETURN_UNGCPRO (unbind_to (count, val)); | |
570d7624 | 3388 | } |
7fded690 | 3389 | \f |
d6a3cc15 RS |
3390 | static Lisp_Object build_annotations (); |
3391 | ||
6fc6f94b RS |
3392 | /* If build_annotations switched buffers, switch back to BUF. |
3393 | Kill the temporary buffer that was selected in the meantime. */ | |
3394 | ||
199607e4 | 3395 | static Lisp_Object |
6fc6f94b RS |
3396 | build_annotations_unwind (buf) |
3397 | Lisp_Object buf; | |
3398 | { | |
3399 | Lisp_Object tembuf; | |
3400 | ||
3401 | if (XBUFFER (buf) == current_buffer) | |
3402 | return Qnil; | |
3403 | tembuf = Fcurrent_buffer (); | |
3404 | Fset_buffer (buf); | |
3405 | Fkill_buffer (tembuf); | |
3406 | return Qnil; | |
3407 | } | |
3408 | ||
7204a979 | 3409 | DEFUN ("write-region", Fwrite_region, Swrite_region, 3, 6, |
570d7624 JB |
3410 | "r\nFWrite region to file: ", |
3411 | "Write current region into specified file.\n\ | |
3412 | When called from a program, takes three arguments:\n\ | |
3413 | START, END and FILENAME. START and END are buffer positions.\n\ | |
3414 | Optional fourth argument APPEND if non-nil means\n\ | |
3415 | append to existing file contents (if any).\n\ | |
3416 | Optional fifth argument VISIT if t means\n\ | |
3417 | set the last-save-file-modtime of buffer to this file's modtime\n\ | |
3418 | and mark buffer not modified.\n\ | |
3b7792ed RS |
3419 | If VISIT is a string, it is a second file name;\n\ |
3420 | the output goes to FILENAME, but the buffer is marked as visiting VISIT.\n\ | |
3421 | VISIT is also the file name to lock and unlock for clash detection.\n\ | |
1d386d28 RS |
3422 | If VISIT is neither t nor nil nor a string,\n\ |
3423 | that means do not print the \"Wrote file\" message.\n\ | |
7204a979 RS |
3424 | The optional sixth arg LOCKNAME, if non-nil, specifies the name to\n\ |
3425 | use for locking and unlocking, overriding FILENAME and VISIT.\n\ | |
570d7624 JB |
3426 | Kludgy feature: if START is a string, then that string is written\n\ |
3427 | to the file, instead of any buffer contents, and END is ignored.") | |
7204a979 RS |
3428 | (start, end, filename, append, visit, lockname) |
3429 | Lisp_Object start, end, filename, append, visit, lockname; | |
570d7624 JB |
3430 | { |
3431 | register int desc; | |
3432 | int failure; | |
3433 | int save_errno; | |
3434 | unsigned char *fn; | |
3435 | struct stat st; | |
c975dd7a | 3436 | int tem; |
570d7624 | 3437 | int count = specpdl_ptr - specpdl; |
6fc6f94b | 3438 | int count1; |
570d7624 | 3439 | #ifdef VMS |
5e570b75 | 3440 | unsigned char *fname = 0; /* If non-0, original filename (must rename) */ |
570d7624 | 3441 | #endif /* VMS */ |
3eac9910 | 3442 | Lisp_Object handler; |
4ad827c5 | 3443 | Lisp_Object visit_file; |
d6a3cc15 RS |
3444 | Lisp_Object annotations; |
3445 | int visiting, quietly; | |
7204a979 | 3446 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
6fc6f94b | 3447 | struct buffer *given_buffer; |
5e570b75 | 3448 | #ifdef DOS_NT |
4c3c22f3 RS |
3449 | int buffer_file_type |
3450 | = NILP (current_buffer->buffer_file_type) ? O_TEXT : O_BINARY; | |
5e570b75 | 3451 | #endif /* DOS_NT */ |
570d7624 | 3452 | |
95385625 RS |
3453 | if (current_buffer->base_buffer && ! NILP (visit)) |
3454 | error ("Cannot do file visiting in an indirect buffer"); | |
3455 | ||
561cb8e1 | 3456 | if (!NILP (start) && !STRINGP (start)) |
570d7624 JB |
3457 | validate_region (&start, &end); |
3458 | ||
7204a979 | 3459 | GCPRO3 (filename, visit, lockname); |
570d7624 | 3460 | filename = Fexpand_file_name (filename, Qnil); |
561cb8e1 | 3461 | if (STRINGP (visit)) |
e5176bae | 3462 | visit_file = Fexpand_file_name (visit, Qnil); |
4ad827c5 RS |
3463 | else |
3464 | visit_file = filename; | |
1a04498e | 3465 | UNGCPRO; |
4ad827c5 | 3466 | |
561cb8e1 | 3467 | visiting = (EQ (visit, Qt) || STRINGP (visit)); |
d6a3cc15 RS |
3468 | quietly = !NILP (visit); |
3469 | ||
3470 | annotations = Qnil; | |
3471 | ||
7204a979 RS |
3472 | if (NILP (lockname)) |
3473 | lockname = visit_file; | |
3474 | ||
3475 | GCPRO5 (start, filename, annotations, visit_file, lockname); | |
570d7624 | 3476 | |
32f4334d RS |
3477 | /* If the file name has special constructs in it, |
3478 | call the corresponding file handler. */ | |
49307295 | 3479 | handler = Ffind_file_name_handler (filename, Qwrite_region); |
b56ad927 | 3480 | /* If FILENAME has no handler, see if VISIT has one. */ |
93c30b5f | 3481 | if (NILP (handler) && STRINGP (visit)) |
199607e4 | 3482 | handler = Ffind_file_name_handler (visit, Qwrite_region); |
3eac9910 | 3483 | |
32f4334d RS |
3484 | if (!NILP (handler)) |
3485 | { | |
32f4334d | 3486 | Lisp_Object val; |
51cf6d37 RS |
3487 | val = call6 (handler, Qwrite_region, start, end, |
3488 | filename, append, visit); | |
32f4334d | 3489 | |
d6a3cc15 | 3490 | if (visiting) |
32f4334d | 3491 | { |
95385625 | 3492 | SAVE_MODIFF = MODIFF; |
2acfd7ae | 3493 | XSETFASTINT (current_buffer->save_length, Z - BEG); |
3b7792ed | 3494 | current_buffer->filename = visit_file; |
32f4334d | 3495 | } |
09121adc | 3496 | UNGCPRO; |
32f4334d RS |
3497 | return val; |
3498 | } | |
3499 | ||
561cb8e1 RS |
3500 | /* Special kludge to simplify auto-saving. */ |
3501 | if (NILP (start)) | |
3502 | { | |
2acfd7ae KH |
3503 | XSETFASTINT (start, BEG); |
3504 | XSETFASTINT (end, Z); | |
561cb8e1 RS |
3505 | } |
3506 | ||
6fc6f94b RS |
3507 | record_unwind_protect (build_annotations_unwind, Fcurrent_buffer ()); |
3508 | count1 = specpdl_ptr - specpdl; | |
3509 | ||
3510 | given_buffer = current_buffer; | |
d6a3cc15 | 3511 | annotations = build_annotations (start, end); |
6fc6f94b RS |
3512 | if (current_buffer != given_buffer) |
3513 | { | |
3514 | start = BEGV; | |
3515 | end = ZV; | |
3516 | } | |
d6a3cc15 | 3517 | |
570d7624 JB |
3518 | #ifdef CLASH_DETECTION |
3519 | if (!auto_saving) | |
84f6296a RS |
3520 | { |
3521 | /* If we've locked this file for some other buffer, | |
3522 | query before proceeding. */ | |
3523 | if (!visiting && EQ (Ffile_locked_p (lockname), Qt)) | |
3524 | call2 (intern ("ask-user-about-lock"), fn, Vuser_login_name); | |
3525 | ||
3526 | lock_file (lockname); | |
3527 | } | |
570d7624 JB |
3528 | #endif /* CLASH_DETECTION */ |
3529 | ||
09121adc | 3530 | fn = XSTRING (filename)->data; |
570d7624 | 3531 | desc = -1; |
265a9e55 | 3532 | if (!NILP (append)) |
5e570b75 | 3533 | #ifdef DOS_NT |
4c3c22f3 | 3534 | desc = open (fn, O_WRONLY | buffer_file_type); |
5e570b75 | 3535 | #else /* not DOS_NT */ |
570d7624 | 3536 | desc = open (fn, O_WRONLY); |
5e570b75 | 3537 | #endif /* not DOS_NT */ |
570d7624 JB |
3538 | |
3539 | if (desc < 0) | |
3540 | #ifdef VMS | |
5e570b75 | 3541 | if (auto_saving) /* Overwrite any previous version of autosave file */ |
570d7624 | 3542 | { |
5e570b75 | 3543 | vms_truncate (fn); /* if fn exists, truncate to zero length */ |
570d7624 JB |
3544 | desc = open (fn, O_RDWR); |
3545 | if (desc < 0) | |
561cb8e1 | 3546 | desc = creat_copy_attrs (STRINGP (current_buffer->filename) |
b72dea2a JB |
3547 | ? XSTRING (current_buffer->filename)->data : 0, |
3548 | fn); | |
570d7624 | 3549 | } |
5e570b75 | 3550 | else /* Write to temporary name and rename if no errors */ |
570d7624 JB |
3551 | { |
3552 | Lisp_Object temp_name; | |
3553 | temp_name = Ffile_name_directory (filename); | |
3554 | ||
265a9e55 | 3555 | if (!NILP (temp_name)) |
570d7624 JB |
3556 | { |
3557 | temp_name = Fmake_temp_name (concat2 (temp_name, | |
3558 | build_string ("$$SAVE$$"))); | |
3559 | fname = XSTRING (filename)->data; | |
3560 | fn = XSTRING (temp_name)->data; | |
3561 | desc = creat_copy_attrs (fname, fn); | |
3562 | if (desc < 0) | |
3563 | { | |
3564 | /* If we can't open the temporary file, try creating a new | |
3565 | version of the original file. VMS "creat" creates a | |
3566 | new version rather than truncating an existing file. */ | |
3567 | fn = fname; | |
3568 | fname = 0; | |
3569 | desc = creat (fn, 0666); | |
3570 | #if 0 /* This can clobber an existing file and fail to replace it, | |
3571 | if the user runs out of space. */ | |
3572 | if (desc < 0) | |
3573 | { | |
3574 | /* We can't make a new version; | |
3575 | try to truncate and rewrite existing version if any. */ | |
3576 | vms_truncate (fn); | |
3577 | desc = open (fn, O_RDWR); | |
3578 | } | |
3579 | #endif | |
3580 | } | |
3581 | } | |
3582 | else | |
3583 | desc = creat (fn, 0666); | |
3584 | } | |
3585 | #else /* not VMS */ | |
5e570b75 | 3586 | #ifdef DOS_NT |
199607e4 RS |
3587 | desc = open (fn, |
3588 | O_WRONLY | O_TRUNC | O_CREAT | buffer_file_type, | |
4c3c22f3 | 3589 | S_IREAD | S_IWRITE); |
5e570b75 | 3590 | #else /* not DOS_NT */ |
570d7624 | 3591 | desc = creat (fn, auto_saving ? auto_save_mode_bits : 0666); |
5e570b75 | 3592 | #endif /* not DOS_NT */ |
570d7624 JB |
3593 | #endif /* not VMS */ |
3594 | ||
09121adc RS |
3595 | UNGCPRO; |
3596 | ||
570d7624 JB |
3597 | if (desc < 0) |
3598 | { | |
3599 | #ifdef CLASH_DETECTION | |
3600 | save_errno = errno; | |
7204a979 | 3601 | if (!auto_saving) unlock_file (lockname); |
570d7624 JB |
3602 | errno = save_errno; |
3603 | #endif /* CLASH_DETECTION */ | |
3604 | report_file_error ("Opening output file", Fcons (filename, Qnil)); | |
3605 | } | |
3606 | ||
3607 | record_unwind_protect (close_file_unwind, make_number (desc)); | |
3608 | ||
265a9e55 | 3609 | if (!NILP (append)) |
570d7624 JB |
3610 | if (lseek (desc, 0, 2) < 0) |
3611 | { | |
3612 | #ifdef CLASH_DETECTION | |
7204a979 | 3613 | if (!auto_saving) unlock_file (lockname); |
570d7624 JB |
3614 | #endif /* CLASH_DETECTION */ |
3615 | report_file_error ("Lseek error", Fcons (filename, Qnil)); | |
3616 | } | |
3617 | ||
3618 | #ifdef VMS | |
3619 | /* | |
3620 | * Kludge Warning: The VMS C RTL likes to insert carriage returns | |
3621 | * if we do writes that don't end with a carriage return. Furthermore | |
3622 | * it cannot handle writes of more then 16K. The modified | |
3623 | * version of "sys_write" in SYSDEP.C (see comment there) copes with | |
3624 | * this EXCEPT for the last record (iff it doesn't end with a carriage | |
3625 | * return). This implies that if your buffer doesn't end with a carriage | |
3626 | * return, you get one free... tough. However it also means that if | |
3627 | * we make two calls to sys_write (a la the following code) you can | |
3628 | * get one at the gap as well. The easiest way to fix this (honest) | |
3629 | * is to move the gap to the next newline (or the end of the buffer). | |
3630 | * Thus this change. | |
3631 | * | |
3632 | * Yech! | |
3633 | */ | |
3634 | if (GPT > BEG && GPT_ADDR[-1] != '\n') | |
3635 | move_gap (find_next_newline (GPT, 1)); | |
3636 | #endif | |
3637 | ||
3638 | failure = 0; | |
3639 | immediate_quit = 1; | |
3640 | ||
561cb8e1 | 3641 | if (STRINGP (start)) |
570d7624 | 3642 | { |
d6a3cc15 RS |
3643 | failure = 0 > a_write (desc, XSTRING (start)->data, |
3644 | XSTRING (start)->size, 0, &annotations); | |
570d7624 JB |
3645 | save_errno = errno; |
3646 | } | |
3647 | else if (XINT (start) != XINT (end)) | |
3648 | { | |
c975dd7a | 3649 | int nwritten = 0; |
570d7624 JB |
3650 | if (XINT (start) < GPT) |
3651 | { | |
3652 | register int end1 = XINT (end); | |
3653 | tem = XINT (start); | |
d6a3cc15 | 3654 | failure = 0 > a_write (desc, &FETCH_CHAR (tem), |
c975dd7a RS |
3655 | min (GPT, end1) - tem, tem, &annotations); |
3656 | nwritten += min (GPT, end1) - tem; | |
570d7624 JB |
3657 | save_errno = errno; |
3658 | } | |
3659 | ||
3660 | if (XINT (end) > GPT && !failure) | |
3661 | { | |
3662 | tem = XINT (start); | |
3663 | tem = max (tem, GPT); | |
d6a3cc15 | 3664 | failure = 0 > a_write (desc, &FETCH_CHAR (tem), XINT (end) - tem, |
c975dd7a RS |
3665 | tem, &annotations); |
3666 | nwritten += XINT (end) - tem; | |
d6a3cc15 RS |
3667 | save_errno = errno; |
3668 | } | |
69f6e679 RS |
3669 | } |
3670 | else | |
3671 | { | |
3672 | /* If file was empty, still need to write the annotations */ | |
3673 | failure = 0 > a_write (desc, "", 0, XINT (start), &annotations); | |
3674 | save_errno = errno; | |
570d7624 JB |
3675 | } |
3676 | ||
3677 | immediate_quit = 0; | |
3678 | ||
6e23c83e | 3679 | #ifdef HAVE_FSYNC |
570d7624 JB |
3680 | /* Note fsync appears to change the modtime on BSD4.2 (both vax and sun). |
3681 | Disk full in NFS may be reported here. */ | |
1daffa1c RS |
3682 | /* mib says that closing the file will try to write as fast as NFS can do |
3683 | it, and that means the fsync here is not crucial for autosave files. */ | |
3684 | if (!auto_saving && fsync (desc) < 0) | |
cb33c142 KH |
3685 | { |
3686 | /* If fsync fails with EINTR, don't treat that as serious. */ | |
3687 | if (errno != EINTR) | |
3688 | failure = 1, save_errno = errno; | |
3689 | } | |
570d7624 JB |
3690 | #endif |
3691 | ||
199607e4 | 3692 | /* Spurious "file has changed on disk" warnings have been |
570d7624 JB |
3693 | observed on Suns as well. |
3694 | It seems that `close' can change the modtime, under nfs. | |
3695 | ||
3696 | (This has supposedly been fixed in Sunos 4, | |
3697 | but who knows about all the other machines with NFS?) */ | |
3698 | #if 0 | |
3699 | ||
3700 | /* On VMS and APOLLO, must do the stat after the close | |
3701 | since closing changes the modtime. */ | |
3702 | #ifndef VMS | |
3703 | #ifndef APOLLO | |
3704 | /* Recall that #if defined does not work on VMS. */ | |
3705 | #define FOO | |
3706 | fstat (desc, &st); | |
3707 | #endif | |
3708 | #endif | |
3709 | #endif | |
3710 | ||
3711 | /* NFS can report a write failure now. */ | |
3712 | if (close (desc) < 0) | |
3713 | failure = 1, save_errno = errno; | |
3714 | ||
3715 | #ifdef VMS | |
3716 | /* If we wrote to a temporary name and had no errors, rename to real name. */ | |
3717 | if (fname) | |
3718 | { | |
3719 | if (!failure) | |
3720 | failure = (rename (fn, fname) != 0), save_errno = errno; | |
3721 | fn = fname; | |
3722 | } | |
3723 | #endif /* VMS */ | |
3724 | ||
3725 | #ifndef FOO | |
3726 | stat (fn, &st); | |
3727 | #endif | |
6fc6f94b RS |
3728 | /* Discard the unwind protect for close_file_unwind. */ |
3729 | specpdl_ptr = specpdl + count1; | |
3730 | /* Restore the original current buffer. */ | |
98295b48 | 3731 | visit_file = unbind_to (count, visit_file); |
570d7624 JB |
3732 | |
3733 | #ifdef CLASH_DETECTION | |
3734 | if (!auto_saving) | |
7204a979 | 3735 | unlock_file (lockname); |
570d7624 JB |
3736 | #endif /* CLASH_DETECTION */ |
3737 | ||
3738 | /* Do this before reporting IO error | |
3739 | to avoid a "file has changed on disk" warning on | |
3740 | next attempt to save. */ | |
d6a3cc15 | 3741 | if (visiting) |
570d7624 JB |
3742 | current_buffer->modtime = st.st_mtime; |
3743 | ||
3744 | if (failure) | |
ce97267f | 3745 | error ("IO error writing %s: %s", fn, strerror (save_errno)); |
570d7624 | 3746 | |
d6a3cc15 | 3747 | if (visiting) |
570d7624 | 3748 | { |
95385625 | 3749 | SAVE_MODIFF = MODIFF; |
2acfd7ae | 3750 | XSETFASTINT (current_buffer->save_length, Z - BEG); |
3b7792ed | 3751 | current_buffer->filename = visit_file; |
f4226e89 | 3752 | update_mode_lines++; |
570d7624 | 3753 | } |
d6a3cc15 | 3754 | else if (quietly) |
570d7624 JB |
3755 | return Qnil; |
3756 | ||
3757 | if (!auto_saving) | |
3b7792ed | 3758 | message ("Wrote %s", XSTRING (visit_file)->data); |
570d7624 JB |
3759 | |
3760 | return Qnil; | |
3761 | } | |
3762 | ||
d6a3cc15 RS |
3763 | Lisp_Object merge (); |
3764 | ||
3765 | DEFUN ("car-less-than-car", Fcar_less_than_car, Scar_less_than_car, 2, 2, 0, | |
2ba0ccff | 3766 | "Return t if (car A) is numerically less than (car B).") |
d6a3cc15 RS |
3767 | (a, b) |
3768 | Lisp_Object a, b; | |
3769 | { | |
3770 | return Flss (Fcar (a), Fcar (b)); | |
3771 | } | |
3772 | ||
3773 | /* Build the complete list of annotations appropriate for writing out | |
3774 | the text between START and END, by calling all the functions in | |
6fc6f94b RS |
3775 | write-region-annotate-functions and merging the lists they return. |
3776 | If one of these functions switches to a different buffer, we assume | |
3777 | that buffer contains altered text. Therefore, the caller must | |
3778 | make sure to restore the current buffer in all cases, | |
3779 | as save-excursion would do. */ | |
d6a3cc15 RS |
3780 | |
3781 | static Lisp_Object | |
3782 | build_annotations (start, end) | |
3783 | Lisp_Object start, end; | |
3784 | { | |
3785 | Lisp_Object annotations; | |
3786 | Lisp_Object p, res; | |
3787 | struct gcpro gcpro1, gcpro2; | |
0a20b684 RS |
3788 | Lisp_Object original_buffer; |
3789 | ||
3790 | XSETBUFFER (original_buffer, current_buffer); | |
d6a3cc15 RS |
3791 | |
3792 | annotations = Qnil; | |
3793 | p = Vwrite_region_annotate_functions; | |
3794 | GCPRO2 (annotations, p); | |
3795 | while (!NILP (p)) | |
3796 | { | |
6fc6f94b RS |
3797 | struct buffer *given_buffer = current_buffer; |
3798 | Vwrite_region_annotations_so_far = annotations; | |
d6a3cc15 | 3799 | res = call2 (Fcar (p), start, end); |
6fc6f94b RS |
3800 | /* If the function makes a different buffer current, |
3801 | assume that means this buffer contains altered text to be output. | |
3802 | Reset START and END from the buffer bounds | |
3803 | and discard all previous annotations because they should have | |
3804 | been dealt with by this function. */ | |
3805 | if (current_buffer != given_buffer) | |
3806 | { | |
6fc6f94b RS |
3807 | start = BEGV; |
3808 | end = ZV; | |
3809 | annotations = Qnil; | |
3810 | } | |
d6a3cc15 RS |
3811 | Flength (res); /* Check basic validity of return value */ |
3812 | annotations = merge (annotations, res, Qcar_less_than_car); | |
3813 | p = Fcdr (p); | |
3814 | } | |
0d420e88 BG |
3815 | |
3816 | /* Now do the same for annotation functions implied by the file-format */ | |
3817 | if (auto_saving && (!EQ (Vauto_save_file_format, Qt))) | |
3818 | p = Vauto_save_file_format; | |
3819 | else | |
3820 | p = current_buffer->file_format; | |
3821 | while (!NILP (p)) | |
3822 | { | |
3823 | struct buffer *given_buffer = current_buffer; | |
3824 | Vwrite_region_annotations_so_far = annotations; | |
0a20b684 RS |
3825 | res = call4 (Qformat_annotate_function, Fcar (p), start, end, |
3826 | original_buffer); | |
0d420e88 BG |
3827 | if (current_buffer != given_buffer) |
3828 | { | |
3829 | start = BEGV; | |
3830 | end = ZV; | |
3831 | annotations = Qnil; | |
3832 | } | |
3833 | Flength (res); | |
3834 | annotations = merge (annotations, res, Qcar_less_than_car); | |
3835 | p = Fcdr (p); | |
3836 | } | |
d6a3cc15 RS |
3837 | UNGCPRO; |
3838 | return annotations; | |
3839 | } | |
3840 | ||
3841 | /* Write to descriptor DESC the LEN characters starting at ADDR, | |
3842 | assuming they start at position POS in the buffer. | |
3843 | Intersperse with them the annotations from *ANNOT | |
3844 | (those which fall within the range of positions POS to POS + LEN), | |
3845 | each at its appropriate position. | |
3846 | ||
3847 | Modify *ANNOT by discarding elements as we output them. | |
3848 | The return value is negative in case of system call failure. */ | |
3849 | ||
3850 | int | |
3851 | a_write (desc, addr, len, pos, annot) | |
3852 | int desc; | |
3853 | register char *addr; | |
3854 | register int len; | |
3855 | int pos; | |
3856 | Lisp_Object *annot; | |
3857 | { | |
3858 | Lisp_Object tem; | |
3859 | int nextpos; | |
3860 | int lastpos = pos + len; | |
3861 | ||
eb15aa18 | 3862 | while (NILP (*annot) || CONSP (*annot)) |
d6a3cc15 RS |
3863 | { |
3864 | tem = Fcar_safe (Fcar (*annot)); | |
3865 | if (INTEGERP (tem) && XINT (tem) >= pos && XFASTINT (tem) <= lastpos) | |
3866 | nextpos = XFASTINT (tem); | |
3867 | else | |
3868 | return e_write (desc, addr, lastpos - pos); | |
3869 | if (nextpos > pos) | |
3870 | { | |
3871 | if (0 > e_write (desc, addr, nextpos - pos)) | |
3872 | return -1; | |
3873 | addr += nextpos - pos; | |
3874 | pos = nextpos; | |
3875 | } | |
3876 | tem = Fcdr (Fcar (*annot)); | |
3877 | if (STRINGP (tem)) | |
3878 | { | |
3879 | if (0 > e_write (desc, XSTRING (tem)->data, XSTRING (tem)->size)) | |
3880 | return -1; | |
3881 | } | |
3882 | *annot = Fcdr (*annot); | |
3883 | } | |
3884 | } | |
3885 | ||
570d7624 JB |
3886 | int |
3887 | e_write (desc, addr, len) | |
3888 | int desc; | |
3889 | register char *addr; | |
3890 | register int len; | |
3891 | { | |
3892 | char buf[16 * 1024]; | |
3893 | register char *p, *end; | |
3894 | ||
3895 | if (!EQ (current_buffer->selective_display, Qt)) | |
3896 | return write (desc, addr, len) - len; | |
3897 | else | |
3898 | { | |
3899 | p = buf; | |
3900 | end = p + sizeof buf; | |
3901 | while (len--) | |
3902 | { | |
3903 | if (p == end) | |
3904 | { | |
3905 | if (write (desc, buf, sizeof buf) != sizeof buf) | |
3906 | return -1; | |
3907 | p = buf; | |
3908 | } | |
3909 | *p = *addr++; | |
3910 | if (*p++ == '\015') | |
3911 | p[-1] = '\n'; | |
3912 | } | |
3913 | if (p != buf) | |
3914 | if (write (desc, buf, p - buf) != p - buf) | |
3915 | return -1; | |
3916 | } | |
3917 | return 0; | |
3918 | } | |
3919 | ||
3920 | DEFUN ("verify-visited-file-modtime", Fverify_visited_file_modtime, | |
3921 | Sverify_visited_file_modtime, 1, 1, 0, | |
3922 | "Return t if last mod time of BUF's visited file matches what BUF records.\n\ | |
3923 | This means that the file has not been changed since it was visited or saved.") | |
3924 | (buf) | |
3925 | Lisp_Object buf; | |
3926 | { | |
3927 | struct buffer *b; | |
3928 | struct stat st; | |
32f4334d | 3929 | Lisp_Object handler; |
570d7624 JB |
3930 | |
3931 | CHECK_BUFFER (buf, 0); | |
3932 | b = XBUFFER (buf); | |
3933 | ||
93c30b5f | 3934 | if (!STRINGP (b->filename)) return Qt; |
570d7624 JB |
3935 | if (b->modtime == 0) return Qt; |
3936 | ||
32f4334d RS |
3937 | /* If the file name has special constructs in it, |
3938 | call the corresponding file handler. */ | |
49307295 KH |
3939 | handler = Ffind_file_name_handler (b->filename, |
3940 | Qverify_visited_file_modtime); | |
32f4334d | 3941 | if (!NILP (handler)) |
09121adc | 3942 | return call2 (handler, Qverify_visited_file_modtime, buf); |
32f4334d | 3943 | |
570d7624 JB |
3944 | if (stat (XSTRING (b->filename)->data, &st) < 0) |
3945 | { | |
3946 | /* If the file doesn't exist now and didn't exist before, | |
3947 | we say that it isn't modified, provided the error is a tame one. */ | |
3948 | if (errno == ENOENT || errno == EACCES || errno == ENOTDIR) | |
3949 | st.st_mtime = -1; | |
3950 | else | |
3951 | st.st_mtime = 0; | |
3952 | } | |
3953 | if (st.st_mtime == b->modtime | |
3954 | /* If both are positive, accept them if they are off by one second. */ | |
3955 | || (st.st_mtime > 0 && b->modtime > 0 | |
3956 | && (st.st_mtime == b->modtime + 1 | |
3957 | || st.st_mtime == b->modtime - 1))) | |
3958 | return Qt; | |
3959 | return Qnil; | |
3960 | } | |
3961 | ||
3962 | DEFUN ("clear-visited-file-modtime", Fclear_visited_file_modtime, | |
3963 | Sclear_visited_file_modtime, 0, 0, 0, | |
3964 | "Clear out records of last mod time of visited file.\n\ | |
3965 | Next attempt to save will certainly not complain of a discrepancy.") | |
3966 | () | |
3967 | { | |
3968 | current_buffer->modtime = 0; | |
3969 | return Qnil; | |
3970 | } | |
3971 | ||
f5d5eccf RS |
3972 | DEFUN ("visited-file-modtime", Fvisited_file_modtime, |
3973 | Svisited_file_modtime, 0, 0, 0, | |
3974 | "Return the current buffer's recorded visited file modification time.\n\ | |
3975 | The value is a list of the form (HIGH . LOW), like the time values\n\ | |
3976 | that `file-attributes' returns.") | |
3977 | () | |
3978 | { | |
b50536bb | 3979 | return long_to_cons ((unsigned long) current_buffer->modtime); |
f5d5eccf RS |
3980 | } |
3981 | ||
570d7624 | 3982 | DEFUN ("set-visited-file-modtime", Fset_visited_file_modtime, |
f5d5eccf | 3983 | Sset_visited_file_modtime, 0, 1, 0, |
570d7624 JB |
3984 | "Update buffer's recorded modification time from the visited file's time.\n\ |
3985 | Useful if the buffer was not read from the file normally\n\ | |
f5d5eccf RS |
3986 | or if the file itself has been changed for some known benign reason.\n\ |
3987 | An argument specifies the modification time value to use\n\ | |
3988 | \(instead of that of the visited file), in the form of a list\n\ | |
3989 | \(HIGH . LOW) or (HIGH LOW).") | |
3990 | (time_list) | |
3991 | Lisp_Object time_list; | |
570d7624 | 3992 | { |
f5d5eccf RS |
3993 | if (!NILP (time_list)) |
3994 | current_buffer->modtime = cons_to_long (time_list); | |
3995 | else | |
3996 | { | |
3997 | register Lisp_Object filename; | |
3998 | struct stat st; | |
3999 | Lisp_Object handler; | |
570d7624 | 4000 | |
f5d5eccf | 4001 | filename = Fexpand_file_name (current_buffer->filename, Qnil); |
32f4334d | 4002 | |
f5d5eccf RS |
4003 | /* If the file name has special constructs in it, |
4004 | call the corresponding file handler. */ | |
49307295 | 4005 | handler = Ffind_file_name_handler (filename, Qset_visited_file_modtime); |
f5d5eccf | 4006 | if (!NILP (handler)) |
caf3c431 | 4007 | /* The handler can find the file name the same way we did. */ |
76c881b0 | 4008 | return call2 (handler, Qset_visited_file_modtime, Qnil); |
f5d5eccf RS |
4009 | else if (stat (XSTRING (filename)->data, &st) >= 0) |
4010 | current_buffer->modtime = st.st_mtime; | |
4011 | } | |
570d7624 JB |
4012 | |
4013 | return Qnil; | |
4014 | } | |
4015 | \f | |
4016 | Lisp_Object | |
4017 | auto_save_error () | |
4018 | { | |
570d7624 | 4019 | ring_bell (); |
1a04498e | 4020 | message ("Autosaving...error for %s", XSTRING (current_buffer->name)->data); |
de49a6d3 | 4021 | Fsleep_for (make_number (1), Qnil); |
1a04498e | 4022 | message ("Autosaving...error!for %s", XSTRING (current_buffer->name)->data); |
de49a6d3 | 4023 | Fsleep_for (make_number (1), Qnil); |
1a04498e | 4024 | message ("Autosaving...error for %s", XSTRING (current_buffer->name)->data); |
de49a6d3 | 4025 | Fsleep_for (make_number (1), Qnil); |
570d7624 JB |
4026 | return Qnil; |
4027 | } | |
4028 | ||
4029 | Lisp_Object | |
4030 | auto_save_1 () | |
4031 | { | |
4032 | unsigned char *fn; | |
4033 | struct stat st; | |
4034 | ||
4035 | /* Get visited file's mode to become the auto save file's mode. */ | |
4036 | if (stat (XSTRING (current_buffer->filename)->data, &st) >= 0) | |
4037 | /* But make sure we can overwrite it later! */ | |
4038 | auto_save_mode_bits = st.st_mode | 0600; | |
4039 | else | |
4040 | auto_save_mode_bits = 0666; | |
4041 | ||
4042 | return | |
4043 | Fwrite_region (Qnil, Qnil, | |
4044 | current_buffer->auto_save_file_name, | |
7204a979 | 4045 | Qnil, Qlambda, Qnil); |
570d7624 JB |
4046 | } |
4047 | ||
e54d3b5d | 4048 | static Lisp_Object |
15fa1468 RS |
4049 | do_auto_save_unwind (desc) /* used as unwind-protect function */ |
4050 | Lisp_Object desc; | |
e54d3b5d | 4051 | { |
3be3c08e | 4052 | auto_saving = 0; |
5badd6a0 KH |
4053 | if (XINT (desc) >= 0) |
4054 | close (XINT (desc)); | |
e54d3b5d RS |
4055 | return Qnil; |
4056 | } | |
4057 | ||
570d7624 JB |
4058 | DEFUN ("do-auto-save", Fdo_auto_save, Sdo_auto_save, 0, 2, "", |
4059 | "Auto-save all buffers that need it.\n\ | |
4060 | This is all buffers that have auto-saving enabled\n\ | |
4061 | and are changed since last auto-saved.\n\ | |
4062 | Auto-saving writes the buffer into a file\n\ | |
4063 | so that your editing is not lost if the system crashes.\n\ | |
012d4cdc RS |
4064 | This file is not the file you visited; that changes only when you save.\n\ |
4065 | Normally we run the normal hook `auto-save-hook' before saving.\n\n\ | |
3b7f6e60 EN |
4066 | A non-nil NO-MESSAGE argument means do not print any message if successful.\n\ |
4067 | A non-nil CURRENT-ONLY argument means save only current buffer.") | |
17857782 JB |
4068 | (no_message, current_only) |
4069 | Lisp_Object no_message, current_only; | |
570d7624 JB |
4070 | { |
4071 | struct buffer *old = current_buffer, *b; | |
4072 | Lisp_Object tail, buf; | |
4073 | int auto_saved = 0; | |
4074 | char *omessage = echo_area_glyphs; | |
f05b275b | 4075 | int omessage_length = echo_area_glyphs_length; |
f14b1c68 | 4076 | int do_handled_files; |
ff4c9993 | 4077 | Lisp_Object oquit; |
e54d3b5d | 4078 | int listdesc; |
e54d3b5d RS |
4079 | int count = specpdl_ptr - specpdl; |
4080 | int *ptr; | |
ff4c9993 RS |
4081 | |
4082 | /* Ordinarily don't quit within this function, | |
4083 | but don't make it impossible to quit (in case we get hung in I/O). */ | |
4084 | oquit = Vquit_flag; | |
4085 | Vquit_flag = Qnil; | |
570d7624 JB |
4086 | |
4087 | /* No GCPRO needed, because (when it matters) all Lisp_Object variables | |
4088 | point to non-strings reached from Vbuffer_alist. */ | |
4089 | ||
570d7624 | 4090 | if (minibuf_level) |
17857782 | 4091 | no_message = Qt; |
570d7624 | 4092 | |
265a9e55 | 4093 | if (!NILP (Vrun_hooks)) |
570d7624 JB |
4094 | call1 (Vrun_hooks, intern ("auto-save-hook")); |
4095 | ||
e54d3b5d RS |
4096 | if (STRINGP (Vauto_save_list_file_name)) |
4097 | { | |
258fd2cb RS |
4098 | Lisp_Object listfile; |
4099 | listfile = Fexpand_file_name (Vauto_save_list_file_name, Qnil); | |
5e570b75 | 4100 | #ifdef DOS_NT |
199607e4 | 4101 | listdesc = open (XSTRING (listfile)->data, |
e54d3b5d RS |
4102 | O_WRONLY | O_TRUNC | O_CREAT | O_TEXT, |
4103 | S_IREAD | S_IWRITE); | |
5e570b75 | 4104 | #else /* not DOS_NT */ |
258fd2cb | 4105 | listdesc = creat (XSTRING (listfile)->data, 0666); |
5e570b75 | 4106 | #endif /* not DOS_NT */ |
e54d3b5d RS |
4107 | } |
4108 | else | |
4109 | listdesc = -1; | |
199607e4 | 4110 | |
3be3c08e RS |
4111 | /* Arrange to close that file whether or not we get an error. |
4112 | Also reset auto_saving to 0. */ | |
5badd6a0 | 4113 | record_unwind_protect (do_auto_save_unwind, make_number (listdesc)); |
e54d3b5d | 4114 | |
3be3c08e RS |
4115 | auto_saving = 1; |
4116 | ||
f14b1c68 JB |
4117 | /* First, save all files which don't have handlers. If Emacs is |
4118 | crashing, the handlers may tweak what is causing Emacs to crash | |
4119 | in the first place, and it would be a shame if Emacs failed to | |
4120 | autosave perfectly ordinary files because it couldn't handle some | |
4121 | ange-ftp'd file. */ | |
4122 | for (do_handled_files = 0; do_handled_files < 2; do_handled_files++) | |
41d86b13 | 4123 | for (tail = Vbuffer_alist; GC_CONSP (tail); tail = XCONS (tail)->cdr) |
f14b1c68 JB |
4124 | { |
4125 | buf = XCONS (XCONS (tail)->car)->cdr; | |
4126 | b = XBUFFER (buf); | |
199607e4 | 4127 | |
e54d3b5d | 4128 | /* Record all the buffers that have auto save mode |
258fd2cb RS |
4129 | in the special file that lists them. For each of these buffers, |
4130 | Record visited name (if any) and auto save name. */ | |
93c30b5f | 4131 | if (STRINGP (b->auto_save_file_name) |
e54d3b5d RS |
4132 | && listdesc >= 0 && do_handled_files == 0) |
4133 | { | |
258fd2cb RS |
4134 | if (!NILP (b->filename)) |
4135 | { | |
4136 | write (listdesc, XSTRING (b->filename)->data, | |
4137 | XSTRING (b->filename)->size); | |
4138 | } | |
4139 | write (listdesc, "\n", 1); | |
e54d3b5d RS |
4140 | write (listdesc, XSTRING (b->auto_save_file_name)->data, |
4141 | XSTRING (b->auto_save_file_name)->size); | |
4142 | write (listdesc, "\n", 1); | |
4143 | } | |
17857782 | 4144 | |
f14b1c68 JB |
4145 | if (!NILP (current_only) |
4146 | && b != current_buffer) | |
4147 | continue; | |
e54d3b5d | 4148 | |
95385625 RS |
4149 | /* Don't auto-save indirect buffers. |
4150 | The base buffer takes care of it. */ | |
4151 | if (b->base_buffer) | |
4152 | continue; | |
4153 | ||
f14b1c68 JB |
4154 | /* Check for auto save enabled |
4155 | and file changed since last auto save | |
4156 | and file changed since last real save. */ | |
93c30b5f | 4157 | if (STRINGP (b->auto_save_file_name) |
95385625 | 4158 | && BUF_SAVE_MODIFF (b) < BUF_MODIFF (b) |
f14b1c68 | 4159 | && b->auto_save_modified < BUF_MODIFF (b) |
82c2d839 RS |
4160 | /* -1 means we've turned off autosaving for a while--see below. */ |
4161 | && XINT (b->save_length) >= 0 | |
f14b1c68 | 4162 | && (do_handled_files |
49307295 KH |
4163 | || NILP (Ffind_file_name_handler (b->auto_save_file_name, |
4164 | Qwrite_region)))) | |
f14b1c68 | 4165 | { |
b60247d9 RS |
4166 | EMACS_TIME before_time, after_time; |
4167 | ||
4168 | EMACS_GET_TIME (before_time); | |
4169 | ||
4170 | /* If we had a failure, don't try again for 20 minutes. */ | |
4171 | if (b->auto_save_failure_time >= 0 | |
4172 | && EMACS_SECS (before_time) - b->auto_save_failure_time < 1200) | |
4173 | continue; | |
4174 | ||
f14b1c68 JB |
4175 | if ((XFASTINT (b->save_length) * 10 |
4176 | > (BUF_Z (b) - BUF_BEG (b)) * 13) | |
4177 | /* A short file is likely to change a large fraction; | |
4178 | spare the user annoying messages. */ | |
4179 | && XFASTINT (b->save_length) > 5000 | |
4180 | /* These messages are frequent and annoying for `*mail*'. */ | |
4181 | && !EQ (b->filename, Qnil) | |
4182 | && NILP (no_message)) | |
4183 | { | |
4184 | /* It has shrunk too much; turn off auto-saving here. */ | |
4185 | message ("Buffer %s has shrunk a lot; auto save turned off there", | |
4186 | XSTRING (b->name)->data); | |
82c2d839 RS |
4187 | /* Turn off auto-saving until there's a real save, |
4188 | and prevent any more warnings. */ | |
46283abe | 4189 | XSETINT (b->save_length, -1); |
f14b1c68 JB |
4190 | Fsleep_for (make_number (1), Qnil); |
4191 | continue; | |
4192 | } | |
4193 | set_buffer_internal (b); | |
4194 | if (!auto_saved && NILP (no_message)) | |
4195 | message1 ("Auto-saving..."); | |
4196 | internal_condition_case (auto_save_1, Qt, auto_save_error); | |
4197 | auto_saved++; | |
4198 | b->auto_save_modified = BUF_MODIFF (b); | |
2acfd7ae | 4199 | XSETFASTINT (current_buffer->save_length, Z - BEG); |
f14b1c68 | 4200 | set_buffer_internal (old); |
b60247d9 RS |
4201 | |
4202 | EMACS_GET_TIME (after_time); | |
4203 | ||
4204 | /* If auto-save took more than 60 seconds, | |
4205 | assume it was an NFS failure that got a timeout. */ | |
4206 | if (EMACS_SECS (after_time) - EMACS_SECS (before_time) > 60) | |
4207 | b->auto_save_failure_time = EMACS_SECS (after_time); | |
f14b1c68 JB |
4208 | } |
4209 | } | |
570d7624 | 4210 | |
b67f2ca5 RS |
4211 | /* Prevent another auto save till enough input events come in. */ |
4212 | record_auto_save (); | |
570d7624 | 4213 | |
17857782 | 4214 | if (auto_saved && NILP (no_message)) |
f05b275b KH |
4215 | { |
4216 | if (omessage) | |
31f3d831 KH |
4217 | { |
4218 | sit_for (1, 0, 0, 0); | |
4219 | message2 (omessage, omessage_length); | |
4220 | } | |
f05b275b KH |
4221 | else |
4222 | message1 ("Auto-saving...done"); | |
4223 | } | |
570d7624 | 4224 | |
ff4c9993 RS |
4225 | Vquit_flag = oquit; |
4226 | ||
e54d3b5d | 4227 | unbind_to (count, Qnil); |
570d7624 JB |
4228 | return Qnil; |
4229 | } | |
4230 | ||
4231 | DEFUN ("set-buffer-auto-saved", Fset_buffer_auto_saved, | |
4232 | Sset_buffer_auto_saved, 0, 0, 0, | |
4233 | "Mark current buffer as auto-saved with its current text.\n\ | |
4234 | No auto-save file will be written until the buffer changes again.") | |
4235 | () | |
4236 | { | |
4237 | current_buffer->auto_save_modified = MODIFF; | |
2acfd7ae | 4238 | XSETFASTINT (current_buffer->save_length, Z - BEG); |
b60247d9 RS |
4239 | current_buffer->auto_save_failure_time = -1; |
4240 | return Qnil; | |
4241 | } | |
4242 | ||
4243 | DEFUN ("clear-buffer-auto-save-failure", Fclear_buffer_auto_save_failure, | |
4244 | Sclear_buffer_auto_save_failure, 0, 0, 0, | |
4245 | "Clear any record of a recent auto-save failure in the current buffer.") | |
4246 | () | |
4247 | { | |
4248 | current_buffer->auto_save_failure_time = -1; | |
570d7624 JB |
4249 | return Qnil; |
4250 | } | |
4251 | ||
4252 | DEFUN ("recent-auto-save-p", Frecent_auto_save_p, Srecent_auto_save_p, | |
4253 | 0, 0, 0, | |
4254 | "Return t if buffer has been auto-saved since last read in or saved.") | |
4255 | () | |
4256 | { | |
95385625 | 4257 | return (SAVE_MODIFF < current_buffer->auto_save_modified) ? Qt : Qnil; |
570d7624 JB |
4258 | } |
4259 | \f | |
4260 | /* Reading and completing file names */ | |
4261 | extern Lisp_Object Ffile_name_completion (), Ffile_name_all_completions (); | |
4262 | ||
6e710ae5 RS |
4263 | /* In the string VAL, change each $ to $$ and return the result. */ |
4264 | ||
4265 | static Lisp_Object | |
4266 | double_dollars (val) | |
4267 | Lisp_Object val; | |
4268 | { | |
4269 | register unsigned char *old, *new; | |
4270 | register int n; | |
4271 | int osize, count; | |
4272 | ||
4273 | osize = XSTRING (val)->size; | |
4274 | /* Quote "$" as "$$" to get it past substitute-in-file-name */ | |
4275 | for (n = osize, count = 0, old = XSTRING (val)->data; n > 0; n--) | |
4276 | if (*old++ == '$') count++; | |
4277 | if (count > 0) | |
4278 | { | |
4279 | old = XSTRING (val)->data; | |
4280 | val = Fmake_string (make_number (osize + count), make_number (0)); | |
4281 | new = XSTRING (val)->data; | |
4282 | for (n = osize; n > 0; n--) | |
4283 | if (*old != '$') | |
4284 | *new++ = *old++; | |
4285 | else | |
4286 | { | |
4287 | *new++ = '$'; | |
4288 | *new++ = '$'; | |
4289 | old++; | |
4290 | } | |
4291 | } | |
4292 | return val; | |
4293 | } | |
4294 | ||
570d7624 JB |
4295 | DEFUN ("read-file-name-internal", Fread_file_name_internal, Sread_file_name_internal, |
4296 | 3, 3, 0, | |
4297 | "Internal subroutine for read-file-name. Do not call this.") | |
4298 | (string, dir, action) | |
4299 | Lisp_Object string, dir, action; | |
4300 | /* action is nil for complete, t for return list of completions, | |
4301 | lambda for verify final value */ | |
4302 | { | |
4303 | Lisp_Object name, specdir, realdir, val, orig_string; | |
09121adc | 4304 | int changed; |
8ce069f5 | 4305 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
09121adc RS |
4306 | |
4307 | realdir = dir; | |
4308 | name = string; | |
4309 | orig_string = Qnil; | |
4310 | specdir = Qnil; | |
4311 | changed = 0; | |
4312 | /* No need to protect ACTION--we only compare it with t and nil. */ | |
8ce069f5 | 4313 | GCPRO5 (string, realdir, name, specdir, orig_string); |
570d7624 JB |
4314 | |
4315 | if (XSTRING (string)->size == 0) | |
4316 | { | |
570d7624 | 4317 | if (EQ (action, Qlambda)) |
09121adc RS |
4318 | { |
4319 | UNGCPRO; | |
4320 | return Qnil; | |
4321 | } | |
570d7624 JB |
4322 | } |
4323 | else | |
4324 | { | |
4325 | orig_string = string; | |
4326 | string = Fsubstitute_in_file_name (string); | |
09121adc | 4327 | changed = NILP (Fstring_equal (string, orig_string)); |
570d7624 | 4328 | name = Ffile_name_nondirectory (string); |
09121adc RS |
4329 | val = Ffile_name_directory (string); |
4330 | if (! NILP (val)) | |
4331 | realdir = Fexpand_file_name (val, realdir); | |
570d7624 JB |
4332 | } |
4333 | ||
265a9e55 | 4334 | if (NILP (action)) |
570d7624 JB |
4335 | { |
4336 | specdir = Ffile_name_directory (string); | |
4337 | val = Ffile_name_completion (name, realdir); | |
09121adc | 4338 | UNGCPRO; |
93c30b5f | 4339 | if (!STRINGP (val)) |
570d7624 | 4340 | { |
09121adc | 4341 | if (changed) |
dbd04e01 | 4342 | return double_dollars (string); |
09121adc | 4343 | return val; |
570d7624 JB |
4344 | } |
4345 | ||
265a9e55 | 4346 | if (!NILP (specdir)) |
570d7624 JB |
4347 | val = concat2 (specdir, val); |
4348 | #ifndef VMS | |
6e710ae5 RS |
4349 | return double_dollars (val); |
4350 | #else /* not VMS */ | |
09121adc | 4351 | return val; |
6e710ae5 | 4352 | #endif /* not VMS */ |
570d7624 | 4353 | } |
09121adc | 4354 | UNGCPRO; |
570d7624 JB |
4355 | |
4356 | if (EQ (action, Qt)) | |
4357 | return Ffile_name_all_completions (name, realdir); | |
4358 | /* Only other case actually used is ACTION = lambda */ | |
4359 | #ifdef VMS | |
4360 | /* Supposedly this helps commands such as `cd' that read directory names, | |
4361 | but can someone explain how it helps them? -- RMS */ | |
4362 | if (XSTRING (name)->size == 0) | |
4363 | return Qt; | |
4364 | #endif /* VMS */ | |
4365 | return Ffile_exists_p (string); | |
4366 | } | |
4367 | ||
4368 | DEFUN ("read-file-name", Fread_file_name, Sread_file_name, 1, 5, 0, | |
4369 | "Read file name, prompting with PROMPT and completing in directory DIR.\n\ | |
4370 | Value is not expanded---you must call `expand-file-name' yourself.\n\ | |
3b7f6e60 EN |
4371 | Default name to DEFAULT-FILENAME if user enters a null string.\n\ |
4372 | (If DEFAULT-FILENAME is omitted, the visited file name is used,\n\ | |
3beeedfe | 4373 | except that if INITIAL is specified, that combined with DIR is used.)\n\ |
570d7624 JB |
4374 | Fourth arg MUSTMATCH non-nil means require existing file's name.\n\ |
4375 | Non-nil and non-t means also require confirmation after completion.\n\ | |
4376 | Fifth arg INITIAL specifies text to start with.\n\ | |
4377 | DIR defaults to current buffer's directory default.") | |
3b7f6e60 EN |
4378 | (prompt, dir, default_filename, mustmatch, initial) |
4379 | Lisp_Object prompt, dir, default_filename, mustmatch, initial; | |
570d7624 | 4380 | { |
85b5fe07 | 4381 | Lisp_Object val, insdef, insdef1, tem; |
570d7624 JB |
4382 | struct gcpro gcpro1, gcpro2; |
4383 | register char *homedir; | |
4384 | int count; | |
4385 | ||
265a9e55 | 4386 | if (NILP (dir)) |
570d7624 | 4387 | dir = current_buffer->directory; |
3b7f6e60 | 4388 | if (NILP (default_filename)) |
3beeedfe RS |
4389 | { |
4390 | if (! NILP (initial)) | |
3b7f6e60 | 4391 | default_filename = Fexpand_file_name (initial, dir); |
3beeedfe | 4392 | else |
3b7f6e60 | 4393 | default_filename = current_buffer->filename; |
3beeedfe | 4394 | } |
570d7624 JB |
4395 | |
4396 | /* If dir starts with user's homedir, change that to ~. */ | |
4397 | homedir = (char *) egetenv ("HOME"); | |
199607e4 RS |
4398 | #ifdef DOS_NT |
4399 | homedir = strcpy (alloca (strlen (homedir) + 1), homedir); | |
4400 | CORRECT_DIR_SEPS (homedir); | |
4401 | #endif | |
570d7624 | 4402 | if (homedir != 0 |
93c30b5f | 4403 | && STRINGP (dir) |
570d7624 | 4404 | && !strncmp (homedir, XSTRING (dir)->data, strlen (homedir)) |
5e570b75 | 4405 | && IS_DIRECTORY_SEP (XSTRING (dir)->data[strlen (homedir)])) |
570d7624 JB |
4406 | { |
4407 | dir = make_string (XSTRING (dir)->data + strlen (homedir) - 1, | |
4408 | XSTRING (dir)->size - strlen (homedir) + 1); | |
4409 | XSTRING (dir)->data[0] = '~'; | |
4410 | } | |
4411 | ||
4412 | if (insert_default_directory) | |
4413 | { | |
4414 | insdef = dir; | |
265a9e55 | 4415 | if (!NILP (initial)) |
570d7624 | 4416 | { |
15c65264 | 4417 | Lisp_Object args[2], pos; |
570d7624 JB |
4418 | |
4419 | args[0] = insdef; | |
4420 | args[1] = initial; | |
4421 | insdef = Fconcat (2, args); | |
351bd676 | 4422 | pos = make_number (XSTRING (double_dollars (dir))->size); |
6e710ae5 | 4423 | insdef1 = Fcons (double_dollars (insdef), pos); |
570d7624 | 4424 | } |
6e710ae5 RS |
4425 | else |
4426 | insdef1 = double_dollars (insdef); | |
570d7624 | 4427 | } |
351bd676 KH |
4428 | else if (!NILP (initial)) |
4429 | { | |
4430 | insdef = initial; | |
4431 | insdef1 = Fcons (double_dollars (insdef), 0); | |
4432 | } | |
570d7624 | 4433 | else |
85b5fe07 | 4434 | insdef = Qnil, insdef1 = Qnil; |
570d7624 JB |
4435 | |
4436 | #ifdef VMS | |
4437 | count = specpdl_ptr - specpdl; | |
4438 | specbind (intern ("completion-ignore-case"), Qt); | |
4439 | #endif | |
4440 | ||
3b7f6e60 | 4441 | GCPRO2 (insdef, default_filename); |
570d7624 | 4442 | val = Fcompleting_read (prompt, intern ("read-file-name-internal"), |
85b5fe07 | 4443 | dir, mustmatch, insdef1, |
15c65264 | 4444 | Qfile_name_history); |
570d7624 JB |
4445 | |
4446 | #ifdef VMS | |
4447 | unbind_to (count, Qnil); | |
4448 | #endif | |
4449 | ||
4450 | UNGCPRO; | |
265a9e55 | 4451 | if (NILP (val)) |
570d7624 JB |
4452 | error ("No file name specified"); |
4453 | tem = Fstring_equal (val, insdef); | |
3b7f6e60 EN |
4454 | if (!NILP (tem) && !NILP (default_filename)) |
4455 | return default_filename; | |
b320926a | 4456 | if (XSTRING (val)->size == 0 && NILP (insdef)) |
d9bc1c99 | 4457 | { |
3b7f6e60 EN |
4458 | if (!NILP (default_filename)) |
4459 | return default_filename; | |
d9bc1c99 RS |
4460 | else |
4461 | error ("No default file name"); | |
4462 | } | |
570d7624 JB |
4463 | return Fsubstitute_in_file_name (val); |
4464 | } | |
4465 | ||
5e570b75 | 4466 | #if 0 /* Old version */ |
570d7624 | 4467 | DEFUN ("read-file-name", Fread_file_name, Sread_file_name, 1, 5, 0, |
0de25302 KH |
4468 | /* Don't confuse make-docfile by having two doc strings for this function. |
4469 | make-docfile does not pay attention to #if, for good reason! */ | |
4470 | 0) | |
570d7624 JB |
4471 | (prompt, dir, defalt, mustmatch, initial) |
4472 | Lisp_Object prompt, dir, defalt, mustmatch, initial; | |
4473 | { | |
4474 | Lisp_Object val, insdef, tem; | |
4475 | struct gcpro gcpro1, gcpro2; | |
4476 | register char *homedir; | |
4477 | int count; | |
4478 | ||
265a9e55 | 4479 | if (NILP (dir)) |
570d7624 | 4480 | dir = current_buffer->directory; |
265a9e55 | 4481 | if (NILP (defalt)) |
570d7624 JB |
4482 | defalt = current_buffer->filename; |
4483 | ||
4484 | /* If dir starts with user's homedir, change that to ~. */ | |
4485 | homedir = (char *) egetenv ("HOME"); | |
4486 | if (homedir != 0 | |
93c30b5f | 4487 | && STRINGP (dir) |
570d7624 JB |
4488 | && !strncmp (homedir, XSTRING (dir)->data, strlen (homedir)) |
4489 | && XSTRING (dir)->data[strlen (homedir)] == '/') | |
4490 | { | |
4491 | dir = make_string (XSTRING (dir)->data + strlen (homedir) - 1, | |
4492 | XSTRING (dir)->size - strlen (homedir) + 1); | |
4493 | XSTRING (dir)->data[0] = '~'; | |
4494 | } | |
4495 | ||
265a9e55 | 4496 | if (!NILP (initial)) |
570d7624 JB |
4497 | insdef = initial; |
4498 | else if (insert_default_directory) | |
4499 | insdef = dir; | |
4500 | else | |
4501 | insdef = build_string (""); | |
4502 | ||
4503 | #ifdef VMS | |
4504 | count = specpdl_ptr - specpdl; | |
4505 | specbind (intern ("completion-ignore-case"), Qt); | |
4506 | #endif | |
4507 | ||
4508 | GCPRO2 (insdef, defalt); | |
4509 | val = Fcompleting_read (prompt, intern ("read-file-name-internal"), | |
4510 | dir, mustmatch, | |
15c65264 RS |
4511 | insert_default_directory ? insdef : Qnil, |
4512 | Qfile_name_history); | |
570d7624 JB |
4513 | |
4514 | #ifdef VMS | |
4515 | unbind_to (count, Qnil); | |
4516 | #endif | |
4517 | ||
4518 | UNGCPRO; | |
265a9e55 | 4519 | if (NILP (val)) |
570d7624 JB |
4520 | error ("No file name specified"); |
4521 | tem = Fstring_equal (val, insdef); | |
265a9e55 | 4522 | if (!NILP (tem) && !NILP (defalt)) |
570d7624 JB |
4523 | return defalt; |
4524 | return Fsubstitute_in_file_name (val); | |
4525 | } | |
4526 | #endif /* Old version */ | |
4527 | \f | |
4528 | syms_of_fileio () | |
4529 | { | |
0bf2eed2 | 4530 | Qexpand_file_name = intern ("expand-file-name"); |
273e0829 | 4531 | Qsubstitute_in_file_name = intern ("substitute-in-file-name"); |
0bf2eed2 RS |
4532 | Qdirectory_file_name = intern ("directory-file-name"); |
4533 | Qfile_name_directory = intern ("file-name-directory"); | |
4534 | Qfile_name_nondirectory = intern ("file-name-nondirectory"); | |
642ef245 | 4535 | Qunhandled_file_name_directory = intern ("unhandled-file-name-directory"); |
0bf2eed2 | 4536 | Qfile_name_as_directory = intern ("file-name-as-directory"); |
32f4334d | 4537 | Qcopy_file = intern ("copy-file"); |
a6e6e718 | 4538 | Qmake_directory_internal = intern ("make-directory-internal"); |
32f4334d RS |
4539 | Qdelete_directory = intern ("delete-directory"); |
4540 | Qdelete_file = intern ("delete-file"); | |
4541 | Qrename_file = intern ("rename-file"); | |
4542 | Qadd_name_to_file = intern ("add-name-to-file"); | |
4543 | Qmake_symbolic_link = intern ("make-symbolic-link"); | |
4544 | Qfile_exists_p = intern ("file-exists-p"); | |
4545 | Qfile_executable_p = intern ("file-executable-p"); | |
4546 | Qfile_readable_p = intern ("file-readable-p"); | |
32f4334d | 4547 | Qfile_writable_p = intern ("file-writable-p"); |
1f8653eb RS |
4548 | Qfile_symlink_p = intern ("file-symlink-p"); |
4549 | Qaccess_file = intern ("access-file"); | |
32f4334d | 4550 | Qfile_directory_p = intern ("file-directory-p"); |
adedc71d | 4551 | Qfile_regular_p = intern ("file-regular-p"); |
32f4334d RS |
4552 | Qfile_accessible_directory_p = intern ("file-accessible-directory-p"); |
4553 | Qfile_modes = intern ("file-modes"); | |
4554 | Qset_file_modes = intern ("set-file-modes"); | |
4555 | Qfile_newer_than_file_p = intern ("file-newer-than-file-p"); | |
4556 | Qinsert_file_contents = intern ("insert-file-contents"); | |
4557 | Qwrite_region = intern ("write-region"); | |
4558 | Qverify_visited_file_modtime = intern ("verify-visited-file-modtime"); | |
3ec46acd | 4559 | Qset_visited_file_modtime = intern ("set-visited-file-modtime"); |
32f4334d | 4560 | |
642ef245 | 4561 | staticpro (&Qexpand_file_name); |
273e0829 | 4562 | staticpro (&Qsubstitute_in_file_name); |
642ef245 JB |
4563 | staticpro (&Qdirectory_file_name); |
4564 | staticpro (&Qfile_name_directory); | |
4565 | staticpro (&Qfile_name_nondirectory); | |
4566 | staticpro (&Qunhandled_file_name_directory); | |
4567 | staticpro (&Qfile_name_as_directory); | |
15c65264 | 4568 | staticpro (&Qcopy_file); |
c34b559d | 4569 | staticpro (&Qmake_directory_internal); |
15c65264 RS |
4570 | staticpro (&Qdelete_directory); |
4571 | staticpro (&Qdelete_file); | |
4572 | staticpro (&Qrename_file); | |
4573 | staticpro (&Qadd_name_to_file); | |
4574 | staticpro (&Qmake_symbolic_link); | |
4575 | staticpro (&Qfile_exists_p); | |
4576 | staticpro (&Qfile_executable_p); | |
4577 | staticpro (&Qfile_readable_p); | |
15c65264 | 4578 | staticpro (&Qfile_writable_p); |
1f8653eb RS |
4579 | staticpro (&Qaccess_file); |
4580 | staticpro (&Qfile_symlink_p); | |
15c65264 | 4581 | staticpro (&Qfile_directory_p); |
adedc71d | 4582 | staticpro (&Qfile_regular_p); |
15c65264 RS |
4583 | staticpro (&Qfile_accessible_directory_p); |
4584 | staticpro (&Qfile_modes); | |
4585 | staticpro (&Qset_file_modes); | |
4586 | staticpro (&Qfile_newer_than_file_p); | |
4587 | staticpro (&Qinsert_file_contents); | |
4588 | staticpro (&Qwrite_region); | |
4589 | staticpro (&Qverify_visited_file_modtime); | |
0a61794b | 4590 | staticpro (&Qset_visited_file_modtime); |
642ef245 JB |
4591 | |
4592 | Qfile_name_history = intern ("file-name-history"); | |
4593 | Fset (Qfile_name_history, Qnil); | |
15c65264 RS |
4594 | staticpro (&Qfile_name_history); |
4595 | ||
570d7624 JB |
4596 | Qfile_error = intern ("file-error"); |
4597 | staticpro (&Qfile_error); | |
199607e4 | 4598 | Qfile_already_exists = intern ("file-already-exists"); |
570d7624 JB |
4599 | staticpro (&Qfile_already_exists); |
4600 | ||
5e570b75 | 4601 | #ifdef DOS_NT |
4c3c22f3 RS |
4602 | Qfind_buffer_file_type = intern ("find-buffer-file-type"); |
4603 | staticpro (&Qfind_buffer_file_type); | |
5e570b75 | 4604 | #endif /* DOS_NT */ |
4c3c22f3 | 4605 | |
0d420e88 | 4606 | DEFVAR_LISP ("auto-save-file-format", &Vauto_save_file_format, |
824a483f | 4607 | "*Format in which to write auto-save files.\n\ |
0d420e88 BG |
4608 | Should be a list of symbols naming formats that are defined in `format-alist'.\n\ |
4609 | If it is t, which is the default, auto-save files are written in the\n\ | |
4610 | same format as a regular save would use."); | |
4611 | Vauto_save_file_format = Qt; | |
4612 | ||
4613 | Qformat_decode = intern ("format-decode"); | |
4614 | staticpro (&Qformat_decode); | |
4615 | Qformat_annotate_function = intern ("format-annotate-function"); | |
4616 | staticpro (&Qformat_annotate_function); | |
4617 | ||
d6a3cc15 RS |
4618 | Qcar_less_than_car = intern ("car-less-than-car"); |
4619 | staticpro (&Qcar_less_than_car); | |
4620 | ||
570d7624 JB |
4621 | Fput (Qfile_error, Qerror_conditions, |
4622 | Fcons (Qfile_error, Fcons (Qerror, Qnil))); | |
4623 | Fput (Qfile_error, Qerror_message, | |
4624 | build_string ("File error")); | |
4625 | ||
4626 | Fput (Qfile_already_exists, Qerror_conditions, | |
4627 | Fcons (Qfile_already_exists, | |
4628 | Fcons (Qfile_error, Fcons (Qerror, Qnil)))); | |
4629 | Fput (Qfile_already_exists, Qerror_message, | |
4630 | build_string ("File already exists")); | |
4631 | ||
4632 | DEFVAR_BOOL ("insert-default-directory", &insert_default_directory, | |
4633 | "*Non-nil means when reading a filename start with default dir in minibuffer."); | |
4634 | insert_default_directory = 1; | |
4635 | ||
4636 | DEFVAR_BOOL ("vms-stmlf-recfm", &vms_stmlf_recfm, | |
4637 | "*Non-nil means write new files with record format `stmlf'.\n\ | |
4638 | nil means use format `var'. This variable is meaningful only on VMS."); | |
4639 | vms_stmlf_recfm = 0; | |
4640 | ||
199607e4 RS |
4641 | DEFVAR_LISP ("directory-sep-char", &Vdirectory_sep_char, |
4642 | "Directory separator character for built-in functions that return file names.\n\ | |
4643 | The value should be either ?/ or ?\\ (any other value is treated as ?\\).\n\ | |
4644 | This variable affects the built-in functions only on Windows,\n\ | |
4645 | on other platforms, it is initialized so that Lisp code can find out\n\ | |
4646 | what the normal separator is."); | |
4647 | Vdirectory_sep_char = '/'; | |
4648 | ||
1d1826db RS |
4649 | DEFVAR_LISP ("file-name-handler-alist", &Vfile_name_handler_alist, |
4650 | "*Alist of elements (REGEXP . HANDLER) for file names handled specially.\n\ | |
4651 | If a file name matches REGEXP, then all I/O on that file is done by calling\n\ | |
4652 | HANDLER.\n\ | |
4653 | \n\ | |
4654 | The first argument given to HANDLER is the name of the I/O primitive\n\ | |
4655 | to be handled; the remaining arguments are the arguments that were\n\ | |
4656 | passed to that primitive. For example, if you do\n\ | |
4657 | (file-exists-p FILENAME)\n\ | |
4658 | and FILENAME is handled by HANDLER, then HANDLER is called like this:\n\ | |
642ef245 JB |
4659 | (funcall HANDLER 'file-exists-p FILENAME)\n\ |
4660 | The function `find-file-name-handler' checks this list for a handler\n\ | |
4661 | for its argument."); | |
09121adc RS |
4662 | Vfile_name_handler_alist = Qnil; |
4663 | ||
d6a3cc15 | 4664 | DEFVAR_LISP ("after-insert-file-functions", &Vafter_insert_file_functions, |
246cfea5 RS |
4665 | "A list of functions to be called at the end of `insert-file-contents'.\n\ |
4666 | Each is passed one argument, the number of bytes inserted. It should return\n\ | |
4667 | the new byte count, and leave point the same. If `insert-file-contents' is\n\ | |
4668 | intercepted by a handler from `file-name-handler-alist', that handler is\n\ | |
d6a3cc15 RS |
4669 | responsible for calling the after-insert-file-functions if appropriate."); |
4670 | Vafter_insert_file_functions = Qnil; | |
4671 | ||
4672 | DEFVAR_LISP ("write-region-annotate-functions", &Vwrite_region_annotate_functions, | |
246cfea5 | 4673 | "A list of functions to be called at the start of `write-region'.\n\ |
568aa585 RS |
4674 | Each is passed two arguments, START and END as for `write-region'.\n\ |
4675 | These are usually two numbers but not always; see the documentation\n\ | |
4676 | for `write-region'. The function should return a list of pairs\n\ | |
4677 | of the form (POSITION . STRING), consisting of strings to be effectively\n\ | |
246cfea5 RS |
4678 | inserted at the specified positions of the file being written (1 means to\n\ |
4679 | insert before the first byte written). The POSITIONs must be sorted into\n\ | |
4680 | increasing order. If there are several functions in the list, the several\n\ | |
d6a3cc15 RS |
4681 | lists are merged destructively."); |
4682 | Vwrite_region_annotate_functions = Qnil; | |
4683 | ||
6fc6f94b RS |
4684 | DEFVAR_LISP ("write-region-annotations-so-far", |
4685 | &Vwrite_region_annotations_so_far, | |
4686 | "When an annotation function is called, this holds the previous annotations.\n\ | |
4687 | These are the annotations made by other annotation functions\n\ | |
4688 | that were already called. See also `write-region-annotate-functions'."); | |
4689 | Vwrite_region_annotations_so_far = Qnil; | |
4690 | ||
82c2d839 | 4691 | DEFVAR_LISP ("inhibit-file-name-handlers", &Vinhibit_file_name_handlers, |
268466ed | 4692 | "A list of file name handlers that temporarily should not be used.\n\ |
e3e86241 | 4693 | This applies only to the operation `inhibit-file-name-operation'."); |
82c2d839 RS |
4694 | Vinhibit_file_name_handlers = Qnil; |
4695 | ||
a65970a0 RS |
4696 | DEFVAR_LISP ("inhibit-file-name-operation", &Vinhibit_file_name_operation, |
4697 | "The operation for which `inhibit-file-name-handlers' is applicable."); | |
4698 | Vinhibit_file_name_operation = Qnil; | |
4699 | ||
e54d3b5d | 4700 | DEFVAR_LISP ("auto-save-list-file-name", &Vauto_save_list_file_name, |
51931aca KH |
4701 | "File name in which we write a list of all auto save file names.\n\ |
4702 | This variable is initialized automatically from `auto-save-list-file-prefix'\n\ | |
4703 | shortly after Emacs reads your `.emacs' file, if you have not yet given it\n\ | |
4704 | a non-nil value."); | |
e54d3b5d RS |
4705 | Vauto_save_list_file_name = Qnil; |
4706 | ||
642ef245 | 4707 | defsubr (&Sfind_file_name_handler); |
570d7624 JB |
4708 | defsubr (&Sfile_name_directory); |
4709 | defsubr (&Sfile_name_nondirectory); | |
642ef245 | 4710 | defsubr (&Sunhandled_file_name_directory); |
570d7624 JB |
4711 | defsubr (&Sfile_name_as_directory); |
4712 | defsubr (&Sdirectory_file_name); | |
4713 | defsubr (&Smake_temp_name); | |
4714 | defsubr (&Sexpand_file_name); | |
4715 | defsubr (&Ssubstitute_in_file_name); | |
4716 | defsubr (&Scopy_file); | |
9bbe01fb | 4717 | defsubr (&Smake_directory_internal); |
aa734e17 | 4718 | defsubr (&Sdelete_directory); |
570d7624 JB |
4719 | defsubr (&Sdelete_file); |
4720 | defsubr (&Srename_file); | |
4721 | defsubr (&Sadd_name_to_file); | |
4722 | #ifdef S_IFLNK | |
4723 | defsubr (&Smake_symbolic_link); | |
4724 | #endif /* S_IFLNK */ | |
4725 | #ifdef VMS | |
4726 | defsubr (&Sdefine_logical_name); | |
4727 | #endif /* VMS */ | |
4728 | #ifdef HPUX_NET | |
4729 | defsubr (&Ssysnetunam); | |
4730 | #endif /* HPUX_NET */ | |
4731 | defsubr (&Sfile_name_absolute_p); | |
4732 | defsubr (&Sfile_exists_p); | |
4733 | defsubr (&Sfile_executable_p); | |
4734 | defsubr (&Sfile_readable_p); | |
4735 | defsubr (&Sfile_writable_p); | |
1f8653eb | 4736 | defsubr (&Saccess_file); |
570d7624 JB |
4737 | defsubr (&Sfile_symlink_p); |
4738 | defsubr (&Sfile_directory_p); | |
b72dea2a | 4739 | defsubr (&Sfile_accessible_directory_p); |
f793dc6c | 4740 | defsubr (&Sfile_regular_p); |
570d7624 JB |
4741 | defsubr (&Sfile_modes); |
4742 | defsubr (&Sset_file_modes); | |
c24e9a53 RS |
4743 | defsubr (&Sset_default_file_modes); |
4744 | defsubr (&Sdefault_file_modes); | |
570d7624 JB |
4745 | defsubr (&Sfile_newer_than_file_p); |
4746 | defsubr (&Sinsert_file_contents); | |
4747 | defsubr (&Swrite_region); | |
d6a3cc15 | 4748 | defsubr (&Scar_less_than_car); |
570d7624 JB |
4749 | defsubr (&Sverify_visited_file_modtime); |
4750 | defsubr (&Sclear_visited_file_modtime); | |
f5d5eccf | 4751 | defsubr (&Svisited_file_modtime); |
570d7624 JB |
4752 | defsubr (&Sset_visited_file_modtime); |
4753 | defsubr (&Sdo_auto_save); | |
4754 | defsubr (&Sset_buffer_auto_saved); | |
b60247d9 | 4755 | defsubr (&Sclear_buffer_auto_save_failure); |
570d7624 JB |
4756 | defsubr (&Srecent_auto_save_p); |
4757 | ||
4758 | defsubr (&Sread_file_name_internal); | |
4759 | defsubr (&Sread_file_name); | |
85ffea93 | 4760 | |
483a2e10 | 4761 | #ifdef unix |
85ffea93 | 4762 | defsubr (&Sunix_sync); |
483a2e10 | 4763 | #endif |
570d7624 | 4764 | } |