Commit | Line | Data |
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570d7624 | 1 | /* File IO for GNU Emacs. |
ce97267f | 2 | Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994 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 | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
18160b98 | 20 | #include <config.h> |
570d7624 JB |
21 | |
22 | #include <sys/types.h> | |
23 | #include <sys/stat.h> | |
bfb61299 | 24 | |
29beb080 RS |
25 | #ifdef HAVE_UNISTD_H |
26 | #include <unistd.h> | |
27 | #endif | |
28 | ||
f73b0ada BF |
29 | #if !defined (S_ISLNK) && defined (S_IFLNK) |
30 | # define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) | |
31 | #endif | |
32 | ||
33 | #if !defined (S_ISREG) && defined (S_IFREG) | |
34 | # define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) | |
35 | #endif | |
36 | ||
bfb61299 | 37 | #ifdef VMS |
de5bf5d3 | 38 | #include "vms-pwd.h" |
bfb61299 | 39 | #else |
570d7624 | 40 | #include <pwd.h> |
bfb61299 JB |
41 | #endif |
42 | ||
4c3c22f3 RS |
43 | #ifdef MSDOS |
44 | #include "msdos.h" | |
45 | #include <sys/param.h> | |
46 | #endif | |
47 | ||
570d7624 | 48 | #include <ctype.h> |
bfb61299 JB |
49 | |
50 | #ifdef VMS | |
3d9f5ce2 | 51 | #include "vmsdir.h" |
bfb61299 JB |
52 | #include <perror.h> |
53 | #include <stddef.h> | |
54 | #include <string.h> | |
bfb61299 JB |
55 | #endif |
56 | ||
570d7624 JB |
57 | #include <errno.h> |
58 | ||
bfb61299 | 59 | #ifndef vax11c |
570d7624 | 60 | extern int errno; |
570d7624 JB |
61 | #endif |
62 | ||
ce97267f | 63 | extern char *strerror (); |
570d7624 JB |
64 | |
65 | #ifdef APOLLO | |
66 | #include <sys/time.h> | |
67 | #endif | |
68 | ||
6e23c83e JB |
69 | #ifndef USG |
70 | #ifndef VMS | |
71 | #ifndef BSD4_1 | |
5e570b75 | 72 | #ifndef WINDOWSNT |
6e23c83e JB |
73 | #define HAVE_FSYNC |
74 | #endif | |
75 | #endif | |
76 | #endif | |
5e570b75 | 77 | #endif |
6e23c83e | 78 | |
570d7624 | 79 | #include "lisp.h" |
8d4e077b | 80 | #include "intervals.h" |
570d7624 JB |
81 | #include "buffer.h" |
82 | #include "window.h" | |
83 | ||
5e570b75 RS |
84 | #ifdef WINDOWSNT |
85 | #define NOMINMAX 1 | |
86 | #include <windows.h> | |
87 | #include <stdlib.h> | |
88 | #include <fcntl.h> | |
89 | #endif /* not WINDOWSNT */ | |
90 | ||
570d7624 | 91 | #ifdef VMS |
570d7624 JB |
92 | #include <file.h> |
93 | #include <rmsdef.h> | |
94 | #include <fab.h> | |
95 | #include <nam.h> | |
96 | #endif | |
97 | ||
de5bf5d3 | 98 | #include "systime.h" |
570d7624 JB |
99 | |
100 | #ifdef HPUX | |
101 | #include <netio.h> | |
9b7828a5 | 102 | #ifndef HPUX8 |
47e7b9e5 | 103 | #ifndef HPUX9 |
570d7624 JB |
104 | #include <errnet.h> |
105 | #endif | |
9b7828a5 | 106 | #endif |
47e7b9e5 | 107 | #endif |
570d7624 JB |
108 | |
109 | #ifndef O_WRONLY | |
110 | #define O_WRONLY 1 | |
111 | #endif | |
112 | ||
4018b5ef RS |
113 | #ifndef O_RDONLY |
114 | #define O_RDONLY 0 | |
115 | #endif | |
116 | ||
570d7624 JB |
117 | #define min(a, b) ((a) < (b) ? (a) : (b)) |
118 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
119 | ||
120 | /* Nonzero during writing of auto-save files */ | |
121 | int auto_saving; | |
122 | ||
123 | /* Set by auto_save_1 to mode of original file so Fwrite_region will create | |
124 | a new file with the same mode as the original */ | |
125 | int auto_save_mode_bits; | |
126 | ||
32f4334d RS |
127 | /* Alist of elements (REGEXP . HANDLER) for file names |
128 | whose I/O is done with a special handler. */ | |
129 | Lisp_Object Vfile_name_handler_alist; | |
130 | ||
0d420e88 BG |
131 | /* Format for auto-save files */ |
132 | Lisp_Object Vauto_save_file_format; | |
133 | ||
134 | /* Lisp functions for translating file formats */ | |
135 | Lisp_Object Qformat_decode, Qformat_annotate_function; | |
136 | ||
d6a3cc15 RS |
137 | /* Functions to be called to process text properties in inserted file. */ |
138 | Lisp_Object Vafter_insert_file_functions; | |
139 | ||
140 | /* Functions to be called to create text property annotations for file. */ | |
141 | Lisp_Object Vwrite_region_annotate_functions; | |
142 | ||
6fc6f94b RS |
143 | /* During build_annotations, each time an annotation function is called, |
144 | this holds the annotations made by the previous functions. */ | |
145 | Lisp_Object Vwrite_region_annotations_so_far; | |
146 | ||
e54d3b5d RS |
147 | /* File name in which we write a list of all our auto save files. */ |
148 | Lisp_Object Vauto_save_list_file_name; | |
149 | ||
570d7624 JB |
150 | /* Nonzero means, when reading a filename in the minibuffer, |
151 | start out by inserting the default directory into the minibuffer. */ | |
152 | int insert_default_directory; | |
153 | ||
154 | /* On VMS, nonzero means write new files with record format stmlf. | |
155 | Zero means use var format. */ | |
156 | int vms_stmlf_recfm; | |
157 | ||
a65970a0 RS |
158 | /* These variables describe handlers that have "already" had a chance |
159 | to handle the current operation. | |
160 | ||
161 | Vinhibit_file_name_handlers is a list of file name handlers. | |
162 | Vinhibit_file_name_operation is the operation being handled. | |
163 | If we try to handle that operation, we ignore those handlers. */ | |
164 | ||
82c2d839 | 165 | static Lisp_Object Vinhibit_file_name_handlers; |
a65970a0 | 166 | static Lisp_Object Vinhibit_file_name_operation; |
82c2d839 | 167 | |
570d7624 JB |
168 | Lisp_Object Qfile_error, Qfile_already_exists; |
169 | ||
15c65264 RS |
170 | Lisp_Object Qfile_name_history; |
171 | ||
d6a3cc15 RS |
172 | Lisp_Object Qcar_less_than_car; |
173 | ||
570d7624 JB |
174 | report_file_error (string, data) |
175 | char *string; | |
176 | Lisp_Object data; | |
177 | { | |
178 | Lisp_Object errstring; | |
179 | ||
a1f17b2d | 180 | errstring = build_string (strerror (errno)); |
570d7624 JB |
181 | |
182 | /* System error messages are capitalized. Downcase the initial | |
183 | unless it is followed by a slash. */ | |
184 | if (XSTRING (errstring)->data[1] != '/') | |
185 | XSTRING (errstring)->data[0] = DOWNCASE (XSTRING (errstring)->data[0]); | |
186 | ||
187 | while (1) | |
188 | Fsignal (Qfile_error, | |
189 | Fcons (build_string (string), Fcons (errstring, data))); | |
190 | } | |
b5148e85 RS |
191 | |
192 | close_file_unwind (fd) | |
193 | Lisp_Object fd; | |
194 | { | |
195 | close (XFASTINT (fd)); | |
196 | } | |
a1d2b64a RS |
197 | |
198 | /* Restore point, having saved it as a marker. */ | |
199 | ||
200 | restore_point_unwind (location) | |
201 | Lisp_Object location; | |
202 | { | |
203 | SET_PT (marker_position (location)); | |
204 | Fset_marker (location, Qnil, Qnil); | |
205 | } | |
570d7624 | 206 | \f |
0bf2eed2 | 207 | Lisp_Object Qexpand_file_name; |
273e0829 | 208 | Lisp_Object Qsubstitute_in_file_name; |
0bf2eed2 RS |
209 | Lisp_Object Qdirectory_file_name; |
210 | Lisp_Object Qfile_name_directory; | |
211 | Lisp_Object Qfile_name_nondirectory; | |
642ef245 | 212 | Lisp_Object Qunhandled_file_name_directory; |
0bf2eed2 | 213 | Lisp_Object Qfile_name_as_directory; |
32f4334d | 214 | Lisp_Object Qcopy_file; |
a6e6e718 | 215 | Lisp_Object Qmake_directory_internal; |
32f4334d RS |
216 | Lisp_Object Qdelete_directory; |
217 | Lisp_Object Qdelete_file; | |
218 | Lisp_Object Qrename_file; | |
219 | Lisp_Object Qadd_name_to_file; | |
220 | Lisp_Object Qmake_symbolic_link; | |
221 | Lisp_Object Qfile_exists_p; | |
222 | Lisp_Object Qfile_executable_p; | |
223 | Lisp_Object Qfile_readable_p; | |
224 | Lisp_Object Qfile_symlink_p; | |
225 | Lisp_Object Qfile_writable_p; | |
226 | Lisp_Object Qfile_directory_p; | |
227 | Lisp_Object Qfile_accessible_directory_p; | |
228 | Lisp_Object Qfile_modes; | |
229 | Lisp_Object Qset_file_modes; | |
230 | Lisp_Object Qfile_newer_than_file_p; | |
231 | Lisp_Object Qinsert_file_contents; | |
232 | Lisp_Object Qwrite_region; | |
233 | Lisp_Object Qverify_visited_file_modtime; | |
3ec46acd | 234 | Lisp_Object Qset_visited_file_modtime; |
32f4334d | 235 | |
49307295 KH |
236 | DEFUN ("find-file-name-handler", Ffind_file_name_handler, Sfind_file_name_handler, 2, 2, 0, |
237 | "Return FILENAME's handler function for OPERATION, if it has one.\n\ | |
642ef245 JB |
238 | Otherwise, return nil.\n\ |
239 | A file name is handled if one of the regular expressions in\n\ | |
82c2d839 | 240 | `file-name-handler-alist' matches it.\n\n\ |
a65970a0 RS |
241 | If OPERATION equals `inhibit-file-name-operation', then we ignore\n\ |
242 | any handlers that are members of `inhibit-file-name-handlers',\n\ | |
243 | but we still do run any other handlers. This lets handlers\n\ | |
82c2d839 | 244 | use the standard functions without calling themselves recursively.") |
49307295 KH |
245 | (filename, operation) |
246 | Lisp_Object filename, operation; | |
32f4334d | 247 | { |
642ef245 | 248 | /* This function must not munge the match data. */ |
a65970a0 | 249 | Lisp_Object chain, inhibited_handlers; |
642ef245 | 250 | |
e4432095 JB |
251 | CHECK_STRING (filename, 0); |
252 | ||
a65970a0 RS |
253 | if (EQ (operation, Vinhibit_file_name_operation)) |
254 | inhibited_handlers = Vinhibit_file_name_handlers; | |
255 | else | |
256 | inhibited_handlers = Qnil; | |
82c2d839 | 257 | |
93c30b5f | 258 | for (chain = Vfile_name_handler_alist; CONSP (chain); |
32f4334d RS |
259 | chain = XCONS (chain)->cdr) |
260 | { | |
261 | Lisp_Object elt; | |
262 | elt = XCONS (chain)->car; | |
93c30b5f | 263 | if (CONSP (elt)) |
32f4334d RS |
264 | { |
265 | Lisp_Object string; | |
266 | string = XCONS (elt)->car; | |
93c30b5f | 267 | if (STRINGP (string) && fast_string_match (string, filename) >= 0) |
a65970a0 RS |
268 | { |
269 | Lisp_Object handler, tem; | |
270 | ||
271 | handler = XCONS (elt)->cdr; | |
272 | tem = Fmemq (handler, inhibited_handlers); | |
273 | if (NILP (tem)) | |
274 | return handler; | |
275 | } | |
32f4334d | 276 | } |
642ef245 JB |
277 | |
278 | QUIT; | |
32f4334d RS |
279 | } |
280 | return Qnil; | |
281 | } | |
282 | \f | |
570d7624 JB |
283 | DEFUN ("file-name-directory", Ffile_name_directory, Sfile_name_directory, |
284 | 1, 1, 0, | |
285 | "Return the directory component in file name NAME.\n\ | |
286 | Return nil if NAME does not include a directory.\n\ | |
287 | Otherwise return a directory spec.\n\ | |
288 | Given a Unix syntax file name, returns a string ending in slash;\n\ | |
289 | on VMS, perhaps instead a string ending in `:', `]' or `>'.") | |
290 | (file) | |
291 | Lisp_Object file; | |
292 | { | |
293 | register unsigned char *beg; | |
294 | register unsigned char *p; | |
0bf2eed2 | 295 | Lisp_Object handler; |
570d7624 JB |
296 | |
297 | CHECK_STRING (file, 0); | |
298 | ||
0bf2eed2 RS |
299 | /* If the file name has special constructs in it, |
300 | call the corresponding file handler. */ | |
49307295 | 301 | handler = Ffind_file_name_handler (file, Qfile_name_directory); |
0bf2eed2 RS |
302 | if (!NILP (handler)) |
303 | return call2 (handler, Qfile_name_directory, file); | |
304 | ||
4c3c22f3 RS |
305 | #ifdef FILE_SYSTEM_CASE |
306 | file = FILE_SYSTEM_CASE (file); | |
307 | #endif | |
570d7624 JB |
308 | beg = XSTRING (file)->data; |
309 | p = beg + XSTRING (file)->size; | |
310 | ||
5e570b75 | 311 | while (p != beg && !IS_ANY_SEP (p[-1]) |
570d7624 JB |
312 | #ifdef VMS |
313 | && p[-1] != ':' && p[-1] != ']' && p[-1] != '>' | |
314 | #endif /* VMS */ | |
315 | ) p--; | |
316 | ||
317 | if (p == beg) | |
318 | return Qnil; | |
5e570b75 | 319 | #ifdef DOS_NT |
4c3c22f3 | 320 | /* Expansion of "c:" to drive and default directory. */ |
5e570b75 | 321 | /* (NT does the right thing.) */ |
4c3c22f3 RS |
322 | if (p == beg + 2 && beg[1] == ':') |
323 | { | |
324 | int drive = (*beg) - 'a'; | |
325 | /* MAXPATHLEN+1 is guaranteed to be enough space for getdefdir. */ | |
326 | unsigned char *res = alloca (MAXPATHLEN + 5); | |
5e570b75 RS |
327 | unsigned char *res1; |
328 | #ifdef WINDOWSNT | |
329 | res1 = res; | |
330 | /* The NT version places the drive letter at the beginning already. */ | |
331 | #else /* not WINDOWSNT */ | |
332 | /* On MSDOG we must put the drive letter in by hand. */ | |
333 | res1 = res + 2; | |
334 | #endif /* not WINDOWSNT */ | |
335 | if (getdefdir (drive + 1, res)) | |
4c3c22f3 | 336 | { |
5e570b75 | 337 | #ifdef MSDOS |
4c3c22f3 RS |
338 | res[0] = drive + 'a'; |
339 | res[1] = ':'; | |
5e570b75 RS |
340 | #endif /* MSDOS */ |
341 | if (IS_DIRECTORY_SEP (res[strlen (res) - 1])) | |
4c3c22f3 RS |
342 | strcat (res, "/"); |
343 | beg = res; | |
344 | p = beg + strlen (beg); | |
345 | } | |
346 | } | |
5e570b75 | 347 | #endif /* DOS_NT */ |
570d7624 JB |
348 | return make_string (beg, p - beg); |
349 | } | |
350 | ||
351 | DEFUN ("file-name-nondirectory", Ffile_name_nondirectory, Sfile_name_nondirectory, | |
352 | 1, 1, 0, | |
353 | "Return file name NAME sans its directory.\n\ | |
354 | For example, in a Unix-syntax file name,\n\ | |
355 | this is everything after the last slash,\n\ | |
356 | or the entire name if it contains no slash.") | |
357 | (file) | |
358 | Lisp_Object file; | |
359 | { | |
360 | register unsigned char *beg, *p, *end; | |
0bf2eed2 | 361 | Lisp_Object handler; |
570d7624 JB |
362 | |
363 | CHECK_STRING (file, 0); | |
364 | ||
0bf2eed2 RS |
365 | /* If the file name has special constructs in it, |
366 | call the corresponding file handler. */ | |
49307295 | 367 | handler = Ffind_file_name_handler (file, Qfile_name_nondirectory); |
0bf2eed2 RS |
368 | if (!NILP (handler)) |
369 | return call2 (handler, Qfile_name_nondirectory, file); | |
370 | ||
570d7624 JB |
371 | beg = XSTRING (file)->data; |
372 | end = p = beg + XSTRING (file)->size; | |
373 | ||
5e570b75 | 374 | while (p != beg && !IS_ANY_SEP (p[-1]) |
570d7624 JB |
375 | #ifdef VMS |
376 | && p[-1] != ':' && p[-1] != ']' && p[-1] != '>' | |
377 | #endif /* VMS */ | |
378 | ) p--; | |
379 | ||
380 | return make_string (p, end - p); | |
381 | } | |
642ef245 JB |
382 | |
383 | DEFUN ("unhandled-file-name-directory", Funhandled_file_name_directory, Sunhandled_file_name_directory, 1, 1, 0, | |
384 | "Return a directly usable directory name somehow associated with FILENAME.\n\ | |
385 | A `directly usable' directory name is one that may be used without the\n\ | |
386 | intervention of any file handler.\n\ | |
387 | If FILENAME is a directly usable file itself, return\n\ | |
388 | (file-name-directory FILENAME).\n\ | |
389 | The `call-process' and `start-process' functions use this function to\n\ | |
390 | get a current directory to run processes in.") | |
391 | (filename) | |
392 | Lisp_Object filename; | |
393 | { | |
394 | Lisp_Object handler; | |
395 | ||
396 | /* If the file name has special constructs in it, | |
397 | call the corresponding file handler. */ | |
49307295 | 398 | handler = Ffind_file_name_handler (filename, Qunhandled_file_name_directory); |
642ef245 JB |
399 | if (!NILP (handler)) |
400 | return call2 (handler, Qunhandled_file_name_directory, filename); | |
401 | ||
402 | return Ffile_name_directory (filename); | |
403 | } | |
404 | ||
570d7624 JB |
405 | \f |
406 | char * | |
407 | file_name_as_directory (out, in) | |
408 | char *out, *in; | |
409 | { | |
410 | int size = strlen (in) - 1; | |
411 | ||
412 | strcpy (out, in); | |
413 | ||
414 | #ifdef VMS | |
415 | /* Is it already a directory string? */ | |
416 | if (in[size] == ':' || in[size] == ']' || in[size] == '>') | |
417 | return out; | |
418 | /* Is it a VMS directory file name? If so, hack VMS syntax. */ | |
419 | else if (! index (in, '/') | |
420 | && ((size > 3 && ! strcmp (&in[size - 3], ".DIR")) | |
421 | || (size > 3 && ! strcmp (&in[size - 3], ".dir")) | |
422 | || (size > 5 && (! strncmp (&in[size - 5], ".DIR", 4) | |
423 | || ! strncmp (&in[size - 5], ".dir", 4)) | |
424 | && (in[size - 1] == '.' || in[size - 1] == ';') | |
425 | && in[size] == '1'))) | |
426 | { | |
427 | register char *p, *dot; | |
428 | char brack; | |
429 | ||
430 | /* x.dir -> [.x] | |
431 | dir:x.dir --> dir:[x] | |
432 | dir:[x]y.dir --> dir:[x.y] */ | |
433 | p = in + size; | |
434 | while (p != in && *p != ':' && *p != '>' && *p != ']') p--; | |
435 | if (p != in) | |
436 | { | |
437 | strncpy (out, in, p - in); | |
438 | out[p - in] = '\0'; | |
439 | if (*p == ':') | |
440 | { | |
441 | brack = ']'; | |
442 | strcat (out, ":["); | |
443 | } | |
444 | else | |
445 | { | |
446 | brack = *p; | |
447 | strcat (out, "."); | |
448 | } | |
449 | p++; | |
450 | } | |
451 | else | |
452 | { | |
453 | brack = ']'; | |
454 | strcpy (out, "[."); | |
455 | } | |
bfb61299 JB |
456 | dot = index (p, '.'); |
457 | if (dot) | |
570d7624 JB |
458 | { |
459 | /* blindly remove any extension */ | |
460 | size = strlen (out) + (dot - p); | |
461 | strncat (out, p, dot - p); | |
462 | } | |
463 | else | |
464 | { | |
465 | strcat (out, p); | |
466 | size = strlen (out); | |
467 | } | |
468 | out[size++] = brack; | |
469 | out[size] = '\0'; | |
470 | } | |
471 | #else /* not VMS */ | |
472 | /* For Unix syntax, Append a slash if necessary */ | |
5e570b75 RS |
473 | if (!IS_ANY_SEP (out[size])) |
474 | { | |
475 | out[size + 1] = DIRECTORY_SEP; | |
476 | out[size + 2] = '\0'; | |
477 | } | |
570d7624 JB |
478 | #endif /* not VMS */ |
479 | return out; | |
480 | } | |
481 | ||
482 | DEFUN ("file-name-as-directory", Ffile_name_as_directory, | |
483 | Sfile_name_as_directory, 1, 1, 0, | |
484 | "Return a string representing file FILENAME interpreted as a directory.\n\ | |
485 | This operation exists because a directory is also a file, but its name as\n\ | |
486 | a directory is different from its name as a file.\n\ | |
487 | The result can be used as the value of `default-directory'\n\ | |
488 | or passed as second argument to `expand-file-name'.\n\ | |
489 | For a Unix-syntax file name, just appends a slash.\n\ | |
490 | On VMS, converts \"[X]FOO.DIR\" to \"[X.FOO]\", etc.") | |
491 | (file) | |
492 | Lisp_Object file; | |
493 | { | |
494 | char *buf; | |
0bf2eed2 | 495 | Lisp_Object handler; |
570d7624 JB |
496 | |
497 | CHECK_STRING (file, 0); | |
265a9e55 | 498 | if (NILP (file)) |
570d7624 | 499 | return Qnil; |
0bf2eed2 RS |
500 | |
501 | /* If the file name has special constructs in it, | |
502 | call the corresponding file handler. */ | |
49307295 | 503 | handler = Ffind_file_name_handler (file, Qfile_name_as_directory); |
0bf2eed2 RS |
504 | if (!NILP (handler)) |
505 | return call2 (handler, Qfile_name_as_directory, file); | |
506 | ||
570d7624 JB |
507 | buf = (char *) alloca (XSTRING (file)->size + 10); |
508 | return build_string (file_name_as_directory (buf, XSTRING (file)->data)); | |
509 | } | |
510 | \f | |
511 | /* | |
512 | * Convert from directory name to filename. | |
513 | * On VMS: | |
514 | * xyzzy:[mukesh.emacs] => xyzzy:[mukesh]emacs.dir.1 | |
515 | * xyzzy:[mukesh] => xyzzy:[000000]mukesh.dir.1 | |
516 | * On UNIX, it's simple: just make sure there is a terminating / | |
517 | ||
518 | * Value is nonzero if the string output is different from the input. | |
519 | */ | |
520 | ||
521 | directory_file_name (src, dst) | |
522 | char *src, *dst; | |
523 | { | |
524 | long slen; | |
525 | #ifdef VMS | |
526 | long rlen; | |
527 | char * ptr, * rptr; | |
528 | char bracket; | |
529 | struct FAB fab = cc$rms_fab; | |
530 | struct NAM nam = cc$rms_nam; | |
531 | char esa[NAM$C_MAXRSS]; | |
532 | #endif /* VMS */ | |
533 | ||
534 | slen = strlen (src); | |
535 | #ifdef VMS | |
536 | if (! index (src, '/') | |
537 | && (src[slen - 1] == ']' | |
538 | || src[slen - 1] == ':' | |
539 | || src[slen - 1] == '>')) | |
540 | { | |
541 | /* VMS style - convert [x.y.z] to [x.y]z, [x] to [000000]x */ | |
542 | fab.fab$l_fna = src; | |
543 | fab.fab$b_fns = slen; | |
544 | fab.fab$l_nam = &nam; | |
545 | fab.fab$l_fop = FAB$M_NAM; | |
546 | ||
547 | nam.nam$l_esa = esa; | |
548 | nam.nam$b_ess = sizeof esa; | |
549 | nam.nam$b_nop |= NAM$M_SYNCHK; | |
550 | ||
551 | /* We call SYS$PARSE to handle such things as [--] for us. */ | |
552 | if (SYS$PARSE(&fab, 0, 0) == RMS$_NORMAL) | |
553 | { | |
554 | slen = nam.nam$b_esl; | |
555 | if (esa[slen - 1] == ';' && esa[slen - 2] == '.') | |
556 | slen -= 2; | |
557 | esa[slen] = '\0'; | |
558 | src = esa; | |
559 | } | |
560 | if (src[slen - 1] != ']' && src[slen - 1] != '>') | |
561 | { | |
562 | /* what about when we have logical_name:???? */ | |
563 | if (src[slen - 1] == ':') | |
5e570b75 | 564 | { /* Xlate logical name and see what we get */ |
570d7624 JB |
565 | ptr = strcpy (dst, src); /* upper case for getenv */ |
566 | while (*ptr) | |
567 | { | |
568 | if ('a' <= *ptr && *ptr <= 'z') | |
569 | *ptr -= 040; | |
570 | ptr++; | |
571 | } | |
5e570b75 | 572 | dst[slen - 1] = 0; /* remove colon */ |
570d7624 JB |
573 | if (!(src = egetenv (dst))) |
574 | return 0; | |
575 | /* should we jump to the beginning of this procedure? | |
576 | Good points: allows us to use logical names that xlate | |
577 | to Unix names, | |
578 | Bad points: can be a problem if we just translated to a device | |
579 | name... | |
580 | For now, I'll punt and always expect VMS names, and hope for | |
581 | the best! */ | |
582 | slen = strlen (src); | |
583 | if (src[slen - 1] != ']' && src[slen - 1] != '>') | |
584 | { /* no recursion here! */ | |
585 | strcpy (dst, src); | |
586 | return 0; | |
587 | } | |
588 | } | |
589 | else | |
5e570b75 | 590 | { /* not a directory spec */ |
570d7624 JB |
591 | strcpy (dst, src); |
592 | return 0; | |
593 | } | |
594 | } | |
595 | bracket = src[slen - 1]; | |
596 | ||
597 | /* If bracket is ']' or '>', bracket - 2 is the corresponding | |
598 | opening bracket. */ | |
bfb61299 JB |
599 | ptr = index (src, bracket - 2); |
600 | if (ptr == 0) | |
570d7624 JB |
601 | { /* no opening bracket */ |
602 | strcpy (dst, src); | |
603 | return 0; | |
604 | } | |
605 | if (!(rptr = rindex (src, '.'))) | |
606 | rptr = ptr; | |
607 | slen = rptr - src; | |
608 | strncpy (dst, src, slen); | |
609 | dst[slen] = '\0'; | |
610 | if (*rptr == '.') | |
611 | { | |
612 | dst[slen++] = bracket; | |
613 | dst[slen] = '\0'; | |
614 | } | |
615 | else | |
616 | { | |
617 | /* If we have the top-level of a rooted directory (i.e. xx:[000000]), | |
618 | then translate the device and recurse. */ | |
619 | if (dst[slen - 1] == ':' | |
5e570b75 | 620 | && dst[slen - 2] != ':' /* skip decnet nodes */ |
570d7624 JB |
621 | && strcmp(src + slen, "[000000]") == 0) |
622 | { | |
623 | dst[slen - 1] = '\0'; | |
624 | if ((ptr = egetenv (dst)) | |
625 | && (rlen = strlen (ptr) - 1) > 0 | |
626 | && (ptr[rlen] == ']' || ptr[rlen] == '>') | |
627 | && ptr[rlen - 1] == '.') | |
628 | { | |
72b21817 RS |
629 | char * buf = (char *) alloca (strlen (ptr) + 1); |
630 | strcpy (buf, ptr); | |
631 | buf[rlen - 1] = ']'; | |
632 | buf[rlen] = '\0'; | |
633 | return directory_file_name (buf, dst); | |
570d7624 JB |
634 | } |
635 | else | |
636 | dst[slen - 1] = ':'; | |
637 | } | |
638 | strcat (dst, "[000000]"); | |
639 | slen += 8; | |
640 | } | |
641 | rptr++; | |
642 | rlen = strlen (rptr) - 1; | |
643 | strncat (dst, rptr, rlen); | |
644 | dst[slen + rlen] = '\0'; | |
645 | strcat (dst, ".DIR.1"); | |
646 | return 1; | |
647 | } | |
648 | #endif /* VMS */ | |
649 | /* Process as Unix format: just remove any final slash. | |
650 | But leave "/" unchanged; do not change it to "". */ | |
651 | strcpy (dst, src); | |
4c3c22f3 | 652 | if (slen > 1 |
5e570b75 RS |
653 | && IS_DIRECTORY_SEP (dst[slen - 1]) |
654 | && !IS_DEVICE_SEP (dst[slen - 2])) | |
570d7624 JB |
655 | dst[slen - 1] = 0; |
656 | return 1; | |
657 | } | |
658 | ||
659 | DEFUN ("directory-file-name", Fdirectory_file_name, Sdirectory_file_name, | |
660 | 1, 1, 0, | |
661 | "Returns the file name of the directory named DIR.\n\ | |
662 | This is the name of the file that holds the data for the directory DIR.\n\ | |
663 | This operation exists because a directory is also a file, but its name as\n\ | |
664 | a directory is different from its name as a file.\n\ | |
665 | In Unix-syntax, this function just removes the final slash.\n\ | |
666 | On VMS, given a VMS-syntax directory name such as \"[X.Y]\",\n\ | |
667 | it returns a file name such as \"[X]Y.DIR.1\".") | |
668 | (directory) | |
669 | Lisp_Object directory; | |
670 | { | |
671 | char *buf; | |
0bf2eed2 | 672 | Lisp_Object handler; |
570d7624 JB |
673 | |
674 | CHECK_STRING (directory, 0); | |
675 | ||
265a9e55 | 676 | if (NILP (directory)) |
570d7624 | 677 | return Qnil; |
0bf2eed2 RS |
678 | |
679 | /* If the file name has special constructs in it, | |
680 | call the corresponding file handler. */ | |
49307295 | 681 | handler = Ffind_file_name_handler (directory, Qdirectory_file_name); |
0bf2eed2 RS |
682 | if (!NILP (handler)) |
683 | return call2 (handler, Qdirectory_file_name, directory); | |
684 | ||
570d7624 JB |
685 | #ifdef VMS |
686 | /* 20 extra chars is insufficient for VMS, since we might perform a | |
687 | logical name translation. an equivalence string can be up to 255 | |
688 | chars long, so grab that much extra space... - sss */ | |
689 | buf = (char *) alloca (XSTRING (directory)->size + 20 + 255); | |
690 | #else | |
691 | buf = (char *) alloca (XSTRING (directory)->size + 20); | |
692 | #endif | |
693 | directory_file_name (XSTRING (directory)->data, buf); | |
694 | return build_string (buf); | |
695 | } | |
696 | ||
697 | DEFUN ("make-temp-name", Fmake_temp_name, Smake_temp_name, 1, 1, 0, | |
698 | "Generate temporary file name (string) starting with PREFIX (a string).\n\ | |
699 | The Emacs process number forms part of the result,\n\ | |
700 | so there is no danger of generating a name being used by another process.") | |
701 | (prefix) | |
702 | Lisp_Object prefix; | |
703 | { | |
704 | Lisp_Object val; | |
705 | val = concat2 (prefix, build_string ("XXXXXX")); | |
706 | mktemp (XSTRING (val)->data); | |
707 | return val; | |
708 | } | |
709 | \f | |
710 | DEFUN ("expand-file-name", Fexpand_file_name, Sexpand_file_name, 1, 2, 0, | |
711 | "Convert FILENAME to absolute, and canonicalize it.\n\ | |
712 | Second arg DEFAULT is directory to start with if FILENAME is relative\n\ | |
713 | (does not start with slash); if DEFAULT is nil or missing,\n\ | |
714 | the current buffer's value of default-directory is used.\n\ | |
b72dea2a JB |
715 | Path components that are `.' are removed, and \n\ |
716 | path components followed by `..' are removed, along with the `..' itself;\n\ | |
717 | note that these simplifications are done without checking the resulting\n\ | |
718 | paths in the file system.\n\ | |
719 | An initial `~/' expands to your home directory.\n\ | |
720 | An initial `~USER/' expands to USER's home directory.\n\ | |
570d7624 JB |
721 | See also the function `substitute-in-file-name'.") |
722 | (name, defalt) | |
723 | Lisp_Object name, defalt; | |
724 | { | |
725 | unsigned char *nm; | |
726 | ||
727 | register unsigned char *newdir, *p, *o; | |
728 | int tlen; | |
729 | unsigned char *target; | |
730 | struct passwd *pw; | |
570d7624 JB |
731 | #ifdef VMS |
732 | unsigned char * colon = 0; | |
733 | unsigned char * close = 0; | |
734 | unsigned char * slash = 0; | |
735 | unsigned char * brack = 0; | |
736 | int lbrack = 0, rbrack = 0; | |
737 | int dots = 0; | |
738 | #endif /* VMS */ | |
5e570b75 RS |
739 | #ifdef DOS_NT |
740 | /* Demacs 1.1.2 91/10/20 Manabu Higashida */ | |
4c3c22f3 RS |
741 | int drive = -1; |
742 | int relpath = 0; | |
743 | unsigned char *tmp, *defdir; | |
5e570b75 | 744 | #endif /* DOS_NT */ |
0bf2eed2 | 745 | Lisp_Object handler; |
570d7624 JB |
746 | |
747 | CHECK_STRING (name, 0); | |
748 | ||
0bf2eed2 RS |
749 | /* If the file name has special constructs in it, |
750 | call the corresponding file handler. */ | |
49307295 | 751 | handler = Ffind_file_name_handler (name, Qexpand_file_name); |
0bf2eed2 | 752 | if (!NILP (handler)) |
09121adc | 753 | return call3 (handler, Qexpand_file_name, name, defalt); |
58fc9587 RS |
754 | |
755 | /* Use the buffer's default-directory if DEFALT is omitted. */ | |
756 | if (NILP (defalt)) | |
757 | defalt = current_buffer->directory; | |
758 | CHECK_STRING (defalt, 1); | |
759 | ||
273e0829 RS |
760 | if (!NILP (defalt)) |
761 | { | |
762 | handler = Ffind_file_name_handler (defalt, Qexpand_file_name); | |
763 | if (!NILP (handler)) | |
764 | return call3 (handler, Qexpand_file_name, name, defalt); | |
765 | } | |
0bf2eed2 | 766 | |
5e570b75 RS |
767 | o = XSTRING (defalt)->data; |
768 | ||
f14b1c68 JB |
769 | /* Make sure DEFALT is properly expanded. |
770 | It would be better to do this down below where we actually use | |
771 | defalt. Unfortunately, calling Fexpand_file_name recursively | |
772 | could invoke GC, and the strings might be relocated. This would | |
773 | be annoying because we have pointers into strings lying around | |
774 | that would need adjusting, and people would add new pointers to | |
775 | the code and forget to adjust them, resulting in intermittent bugs. | |
4ad827c5 RS |
776 | Putting this call here avoids all that crud. |
777 | ||
778 | The EQ test avoids infinite recursion. */ | |
779 | if (! NILP (defalt) && !EQ (defalt, name) | |
780 | /* This saves time in a common case. */ | |
5e570b75 RS |
781 | && ! (XSTRING (defalt)->size >= 3 |
782 | && IS_DIRECTORY_SEP (XSTRING (defalt)->data[0]) | |
783 | && IS_DEVICE_SEP (XSTRING (defalt)->data[1]))) | |
f14b1c68 JB |
784 | { |
785 | struct gcpro gcpro1; | |
786 | ||
787 | GCPRO1 (name); | |
788 | defalt = Fexpand_file_name (defalt, Qnil); | |
789 | UNGCPRO; | |
790 | } | |
791 | ||
570d7624 JB |
792 | #ifdef VMS |
793 | /* Filenames on VMS are always upper case. */ | |
794 | name = Fupcase (name); | |
795 | #endif | |
4c3c22f3 RS |
796 | #ifdef FILE_SYSTEM_CASE |
797 | name = FILE_SYSTEM_CASE (name); | |
798 | #endif | |
570d7624 JB |
799 | |
800 | nm = XSTRING (name)->data; | |
801 | ||
4c3c22f3 | 802 | #ifdef MSDOS |
a5a1cc06 RS |
803 | /* First map all backslashes to slashes. */ |
804 | dostounix_filename (nm = strcpy (alloca (strlen (nm) + 1), nm)); | |
5e570b75 | 805 | #endif |
a5a1cc06 | 806 | |
5e570b75 | 807 | #ifdef DOS_NT |
a5a1cc06 | 808 | /* Now strip drive name. */ |
4c3c22f3 RS |
809 | { |
810 | unsigned char *colon = rindex (nm, ':'); | |
811 | if (colon) | |
812 | if (nm == colon) | |
813 | nm++; | |
814 | else | |
815 | { | |
816 | drive = tolower (colon[-1]) - 'a'; | |
817 | nm = colon + 1; | |
5e570b75 | 818 | if (!IS_DIRECTORY_SEP (*nm)) |
4c3c22f3 RS |
819 | { |
820 | defdir = alloca (MAXPATHLEN + 1); | |
821 | relpath = getdefdir (drive + 1, defdir); | |
822 | } | |
5e570b75 | 823 | } |
4c3c22f3 | 824 | } |
5e570b75 | 825 | #endif /* DOS_NT */ |
4c3c22f3 | 826 | |
570d7624 JB |
827 | /* If nm is absolute, flush ...// and detect /./ and /../. |
828 | If no /./ or /../ we can return right away. */ | |
829 | if ( | |
5e570b75 | 830 | IS_DIRECTORY_SEP (nm[0]) |
570d7624 JB |
831 | #ifdef VMS |
832 | || index (nm, ':') | |
833 | #endif /* VMS */ | |
834 | ) | |
835 | { | |
f14b1c68 JB |
836 | /* If it turns out that the filename we want to return is just a |
837 | suffix of FILENAME, we don't need to go through and edit | |
838 | things; we just need to construct a new string using data | |
839 | starting at the middle of FILENAME. If we set lose to a | |
840 | non-zero value, that means we've discovered that we can't do | |
841 | that cool trick. */ | |
842 | int lose = 0; | |
843 | ||
570d7624 | 844 | p = nm; |
570d7624 JB |
845 | while (*p) |
846 | { | |
c77d647e JB |
847 | /* Since we know the path is absolute, we can assume that each |
848 | element starts with a "/". */ | |
849 | ||
850 | /* "//" anywhere isn't necessarily hairy; we just start afresh | |
851 | with the second slash. */ | |
5e570b75 | 852 | if (IS_DIRECTORY_SEP (p[0]) && IS_DIRECTORY_SEP (p[1]) |
570d7624 JB |
853 | #ifdef APOLLO |
854 | /* // at start of filename is meaningful on Apollo system */ | |
855 | && nm != p | |
856 | #endif /* APOLLO */ | |
5e570b75 RS |
857 | #ifdef WINDOWSNT |
858 | /* \\ or // at the start of a pathname is meaningful on NT. */ | |
859 | && nm != p | |
860 | #endif /* WINDOWSNT */ | |
570d7624 JB |
861 | ) |
862 | nm = p + 1; | |
c77d647e JB |
863 | |
864 | /* "~" is hairy as the start of any path element. */ | |
5e570b75 | 865 | if (IS_DIRECTORY_SEP (p[0]) && p[1] == '~') |
570d7624 | 866 | nm = p + 1, lose = 1; |
c77d647e JB |
867 | |
868 | /* "." and ".." are hairy. */ | |
5e570b75 | 869 | if (IS_DIRECTORY_SEP (p[0]) |
c77d647e | 870 | && p[1] == '.' |
5e570b75 | 871 | && (IS_DIRECTORY_SEP (p[2]) |
c77d647e | 872 | || p[2] == 0 |
5e570b75 | 873 | || (p[2] == '.' && (IS_DIRECTORY_SEP (p[3]) |
c77d647e | 874 | || p[3] == 0)))) |
570d7624 JB |
875 | lose = 1; |
876 | #ifdef VMS | |
877 | if (p[0] == '\\') | |
878 | lose = 1; | |
879 | if (p[0] == '/') { | |
880 | /* if dev:[dir]/, move nm to / */ | |
881 | if (!slash && p > nm && (brack || colon)) { | |
882 | nm = (brack ? brack + 1 : colon + 1); | |
883 | lbrack = rbrack = 0; | |
884 | brack = 0; | |
885 | colon = 0; | |
886 | } | |
887 | slash = p; | |
888 | } | |
889 | if (p[0] == '-') | |
890 | #ifndef VMS4_4 | |
891 | /* VMS pre V4.4,convert '-'s in filenames. */ | |
892 | if (lbrack == rbrack) | |
893 | { | |
5e570b75 | 894 | if (dots < 2) /* this is to allow negative version numbers */ |
570d7624 JB |
895 | p[0] = '_'; |
896 | } | |
897 | else | |
898 | #endif /* VMS4_4 */ | |
899 | if (lbrack > rbrack && | |
900 | ((p[-1] == '.' || p[-1] == '[' || p[-1] == '<') && | |
901 | (p[1] == '.' || p[1] == ']' || p[1] == '>'))) | |
902 | lose = 1; | |
903 | #ifndef VMS4_4 | |
904 | else | |
905 | p[0] = '_'; | |
906 | #endif /* VMS4_4 */ | |
907 | /* count open brackets, reset close bracket pointer */ | |
908 | if (p[0] == '[' || p[0] == '<') | |
909 | lbrack++, brack = 0; | |
910 | /* count close brackets, set close bracket pointer */ | |
911 | if (p[0] == ']' || p[0] == '>') | |
912 | rbrack++, brack = p; | |
913 | /* detect ][ or >< */ | |
914 | if ((p[0] == ']' || p[0] == '>') && (p[1] == '[' || p[1] == '<')) | |
915 | lose = 1; | |
916 | if ((p[0] == ':' || p[0] == ']' || p[0] == '>') && p[1] == '~') | |
917 | nm = p + 1, lose = 1; | |
918 | if (p[0] == ':' && (colon || slash)) | |
919 | /* if dev1:[dir]dev2:, move nm to dev2: */ | |
920 | if (brack) | |
921 | { | |
922 | nm = brack + 1; | |
923 | brack = 0; | |
924 | } | |
925 | /* if /pathname/dev:, move nm to dev: */ | |
926 | else if (slash) | |
927 | nm = slash + 1; | |
928 | /* if node::dev:, move colon following dev */ | |
929 | else if (colon && colon[-1] == ':') | |
930 | colon = p; | |
931 | /* if dev1:dev2:, move nm to dev2: */ | |
932 | else if (colon && colon[-1] != ':') | |
933 | { | |
934 | nm = colon + 1; | |
935 | colon = 0; | |
936 | } | |
937 | if (p[0] == ':' && !colon) | |
938 | { | |
939 | if (p[1] == ':') | |
940 | p++; | |
941 | colon = p; | |
942 | } | |
943 | if (lbrack == rbrack) | |
944 | if (p[0] == ';') | |
945 | dots = 2; | |
946 | else if (p[0] == '.') | |
947 | dots++; | |
948 | #endif /* VMS */ | |
949 | p++; | |
950 | } | |
951 | if (!lose) | |
952 | { | |
953 | #ifdef VMS | |
954 | if (index (nm, '/')) | |
955 | return build_string (sys_translate_unix (nm)); | |
956 | #endif /* VMS */ | |
5e570b75 | 957 | #ifndef DOS_NT |
570d7624 JB |
958 | if (nm == XSTRING (name)->data) |
959 | return name; | |
960 | return build_string (nm); | |
5e570b75 | 961 | #endif /* not DOS_NT */ |
570d7624 JB |
962 | } |
963 | } | |
964 | ||
965 | /* Now determine directory to start with and put it in newdir */ | |
966 | ||
967 | newdir = 0; | |
968 | ||
969 | if (nm[0] == '~') /* prefix ~ */ | |
c77d647e | 970 | { |
5e570b75 | 971 | if (IS_DIRECTORY_SEP (nm[1]) |
570d7624 | 972 | #ifdef VMS |
c77d647e | 973 | || nm[1] == ':' |
5e570b75 | 974 | #endif /* VMS */ |
c77d647e JB |
975 | || nm[1] == 0) /* ~ by itself */ |
976 | { | |
977 | if (!(newdir = (unsigned char *) egetenv ("HOME"))) | |
978 | newdir = (unsigned char *) ""; | |
5e570b75 | 979 | #ifdef DOS_NT |
4c3c22f3 RS |
980 | dostounix_filename (newdir); |
981 | #endif | |
c77d647e | 982 | nm++; |
570d7624 | 983 | #ifdef VMS |
c77d647e | 984 | nm++; /* Don't leave the slash in nm. */ |
5e570b75 | 985 | #endif /* VMS */ |
c77d647e JB |
986 | } |
987 | else /* ~user/filename */ | |
988 | { | |
5e570b75 | 989 | for (p = nm; *p && (!IS_DIRECTORY_SEP (*p) |
570d7624 | 990 | #ifdef VMS |
c77d647e | 991 | && *p != ':' |
5e570b75 | 992 | #endif /* VMS */ |
c77d647e JB |
993 | ); p++); |
994 | o = (unsigned char *) alloca (p - nm + 1); | |
995 | bcopy ((char *) nm, o, p - nm); | |
996 | o [p - nm] = 0; | |
997 | ||
5e570b75 RS |
998 | #ifdef WINDOWSNT |
999 | newdir = (unsigned char *) egetenv ("HOME"); | |
1000 | dostounix_filename (newdir); | |
1001 | #else /* not WINDOWSNT */ | |
c77d647e JB |
1002 | pw = (struct passwd *) getpwnam (o + 1); |
1003 | if (pw) | |
1004 | { | |
1005 | newdir = (unsigned char *) pw -> pw_dir; | |
570d7624 | 1006 | #ifdef VMS |
c77d647e | 1007 | nm = p + 1; /* skip the terminator */ |
570d7624 | 1008 | #else |
c77d647e | 1009 | nm = p; |
5e570b75 | 1010 | #endif /* VMS */ |
c77d647e | 1011 | } |
5e570b75 | 1012 | #endif /* not WINDOWSNT */ |
e5d77022 | 1013 | |
c77d647e JB |
1014 | /* If we don't find a user of that name, leave the name |
1015 | unchanged; don't move nm forward to p. */ | |
1016 | } | |
1017 | } | |
570d7624 | 1018 | |
5e570b75 | 1019 | if (!IS_ANY_SEP (nm[0]) |
570d7624 JB |
1020 | #ifdef VMS |
1021 | && !index (nm, ':') | |
1022 | #endif /* not VMS */ | |
5e570b75 | 1023 | #ifdef DOS_NT |
4c3c22f3 | 1024 | && drive == -1 |
5e570b75 | 1025 | #endif /* DOS_NT */ |
570d7624 JB |
1026 | && !newdir) |
1027 | { | |
570d7624 JB |
1028 | newdir = XSTRING (defalt)->data; |
1029 | } | |
1030 | ||
5e570b75 | 1031 | #ifdef DOS_NT |
4c3c22f3 RS |
1032 | if (newdir == 0 && relpath) |
1033 | newdir = defdir; | |
5e570b75 | 1034 | #endif /* DOS_NT */ |
bfb61299 JB |
1035 | if (newdir != 0) |
1036 | { | |
1037 | /* Get rid of any slash at the end of newdir. */ | |
1038 | int length = strlen (newdir); | |
eabf01d4 RS |
1039 | /* Adding `length > 1 &&' makes ~ expand into / when homedir |
1040 | is the root dir. People disagree about whether that is right. | |
1041 | Anyway, we can't take the risk of this change now. */ | |
4c3c22f3 RS |
1042 | #ifdef MSDOS |
1043 | if (newdir[1] != ':' && length > 1) | |
1044 | #endif | |
5e570b75 | 1045 | if (IS_DIRECTORY_SEP (newdir[length - 1])) |
bfb61299 JB |
1046 | { |
1047 | unsigned char *temp = (unsigned char *) alloca (length); | |
1048 | bcopy (newdir, temp, length - 1); | |
1049 | temp[length - 1] = 0; | |
1050 | newdir = temp; | |
1051 | } | |
1052 | tlen = length + 1; | |
1053 | } | |
1054 | else | |
1055 | tlen = 0; | |
570d7624 | 1056 | |
bfb61299 JB |
1057 | /* Now concatenate the directory and name to new space in the stack frame */ |
1058 | tlen += strlen (nm) + 1; | |
5e570b75 RS |
1059 | #ifdef DOS_NT |
1060 | /* Add reserved space for drive name. (The Microsoft x86 compiler | |
1061 | produces incorrect code if the following two lines are combined.) */ | |
1062 | target = (unsigned char *) alloca (tlen + 2); | |
1063 | target += 2; | |
1064 | #else /* not DOS_NT */ | |
570d7624 | 1065 | target = (unsigned char *) alloca (tlen); |
5e570b75 | 1066 | #endif /* not DOS_NT */ |
570d7624 JB |
1067 | *target = 0; |
1068 | ||
1069 | if (newdir) | |
1070 | { | |
1071 | #ifndef VMS | |
5e570b75 | 1072 | if (nm[0] == 0 || IS_DIRECTORY_SEP (nm[0])) |
570d7624 JB |
1073 | strcpy (target, newdir); |
1074 | else | |
1075 | #endif | |
c77d647e | 1076 | file_name_as_directory (target, newdir); |
570d7624 JB |
1077 | } |
1078 | ||
1079 | strcat (target, nm); | |
1080 | #ifdef VMS | |
1081 | if (index (target, '/')) | |
1082 | strcpy (target, sys_translate_unix (target)); | |
1083 | #endif /* VMS */ | |
1084 | ||
c77d647e | 1085 | /* Now canonicalize by removing /. and /foo/.. if they appear. */ |
570d7624 JB |
1086 | |
1087 | p = target; | |
1088 | o = target; | |
1089 | ||
1090 | while (*p) | |
1091 | { | |
1092 | #ifdef VMS | |
1093 | if (*p != ']' && *p != '>' && *p != '-') | |
1094 | { | |
1095 | if (*p == '\\') | |
1096 | p++; | |
1097 | *o++ = *p++; | |
1098 | } | |
1099 | else if ((p[0] == ']' || p[0] == '>') && p[0] == p[1] + 2) | |
1100 | /* brackets are offset from each other by 2 */ | |
1101 | { | |
1102 | p += 2; | |
1103 | if (*p != '.' && *p != '-' && o[-1] != '.') | |
1104 | /* convert [foo][bar] to [bar] */ | |
1105 | while (o[-1] != '[' && o[-1] != '<') | |
1106 | o--; | |
1107 | else if (*p == '-' && *o != '.') | |
1108 | *--p = '.'; | |
1109 | } | |
1110 | else if (p[0] == '-' && o[-1] == '.' && | |
1111 | (p[1] == '.' || p[1] == ']' || p[1] == '>')) | |
1112 | /* flush .foo.- ; leave - if stopped by '[' or '<' */ | |
1113 | { | |
1114 | do | |
1115 | o--; | |
1116 | while (o[-1] != '.' && o[-1] != '[' && o[-1] != '<'); | |
5e570b75 | 1117 | if (p[1] == '.') /* foo.-.bar ==> bar. */ |
570d7624 JB |
1118 | p += 2; |
1119 | else if (o[-1] == '.') /* '.foo.-]' ==> ']' */ | |
1120 | p++, o--; | |
1121 | /* else [foo.-] ==> [-] */ | |
1122 | } | |
1123 | else | |
1124 | { | |
1125 | #ifndef VMS4_4 | |
1126 | if (*p == '-' && | |
1127 | o[-1] != '[' && o[-1] != '<' && o[-1] != '.' && | |
1128 | p[1] != ']' && p[1] != '>' && p[1] != '.') | |
1129 | *p = '_'; | |
1130 | #endif /* VMS4_4 */ | |
1131 | *o++ = *p++; | |
1132 | } | |
1133 | #else /* not VMS */ | |
5e570b75 RS |
1134 | if (!IS_DIRECTORY_SEP (*p)) |
1135 | { | |
570d7624 JB |
1136 | *o++ = *p++; |
1137 | } | |
5e570b75 RS |
1138 | #ifdef WINDOWSNT |
1139 | else if (!strncmp (p, "\\\\", 2) || !strncmp (p, "//", 2)) | |
1140 | #else /* not WINDOWSNT */ | |
570d7624 | 1141 | else if (!strncmp (p, "//", 2) |
5e570b75 | 1142 | #endif /* not WINDOWSNT */ |
570d7624 JB |
1143 | #ifdef APOLLO |
1144 | /* // at start of filename is meaningful in Apollo system */ | |
1145 | && o != target | |
1146 | #endif /* APOLLO */ | |
5e570b75 RS |
1147 | #ifdef WINDOWSNT |
1148 | /* \\ at start of filename is meaningful in Windows-NT */ | |
1149 | && o != target | |
1150 | #endif /* WINDOWSNT */ | |
570d7624 JB |
1151 | ) |
1152 | { | |
1153 | o = target; | |
1154 | p++; | |
1155 | } | |
5e570b75 | 1156 | else if (IS_DIRECTORY_SEP (p[0]) |
c77d647e | 1157 | && p[1] == '.' |
5e570b75 | 1158 | && (IS_DIRECTORY_SEP (p[2]) |
c77d647e JB |
1159 | || p[2] == 0)) |
1160 | { | |
1161 | /* If "/." is the entire filename, keep the "/". Otherwise, | |
1162 | just delete the whole "/.". */ | |
1163 | if (o == target && p[2] == '\0') | |
1164 | *o++ = *p; | |
1165 | p += 2; | |
1166 | } | |
5e570b75 RS |
1167 | #ifdef WINDOWSNT |
1168 | else if (!strncmp (p, "\\..", 3) || !strncmp (p, "/..", 3)) | |
1169 | #else /* not WINDOWSNT */ | |
570d7624 | 1170 | else if (!strncmp (p, "/..", 3) |
5e570b75 | 1171 | #endif /* not WINDOWSNT */ |
570d7624 JB |
1172 | /* `/../' is the "superroot" on certain file systems. */ |
1173 | && o != target | |
5e570b75 | 1174 | && (IS_DIRECTORY_SEP (p[3]) || p[3] == 0)) |
570d7624 | 1175 | { |
5e570b75 | 1176 | while (o != target && (--o) && !IS_DIRECTORY_SEP (*o)) |
570d7624 JB |
1177 | ; |
1178 | #ifdef APOLLO | |
1179 | if (o == target + 1 && o[-1] == '/' && o[0] == '/') | |
1180 | ++o; | |
1181 | else | |
1182 | #endif /* APOLLO */ | |
5e570b75 RS |
1183 | #ifdef WINDOWSNT |
1184 | if (o == target + 1 && (o[-1] == '/' && o[0] == '/') | |
1185 | || (o[-1] == '\\' && o[0] == '\\')) | |
1186 | ++o; | |
1187 | else | |
1188 | #endif /* WINDOWSNT */ | |
1189 | if (o == target && IS_ANY_SEP (*o)) | |
570d7624 JB |
1190 | ++o; |
1191 | p += 3; | |
1192 | } | |
1193 | else | |
5e570b75 | 1194 | { |
570d7624 JB |
1195 | *o++ = *p++; |
1196 | } | |
1197 | #endif /* not VMS */ | |
1198 | } | |
1199 | ||
5e570b75 | 1200 | #ifdef DOS_NT |
4c3c22f3 | 1201 | /* at last, set drive name. */ |
5e570b75 RS |
1202 | if (target[1] != ':' |
1203 | #ifdef WINDOWSNT | |
1204 | /* Allow network paths that look like "\\foo" */ | |
1205 | && !(IS_DIRECTORY_SEP (target[0]) && IS_DIRECTORY_SEP (target[1])) | |
1206 | #endif /* WINDOWSNT */ | |
1207 | ) | |
4c3c22f3 RS |
1208 | { |
1209 | target -= 2; | |
1210 | target[0] = (drive < 0 ? getdisk () : drive) + 'a'; | |
1211 | target[1] = ':'; | |
1212 | } | |
5e570b75 | 1213 | #endif /* DOS_NT */ |
4c3c22f3 | 1214 | |
570d7624 JB |
1215 | return make_string (target, o - target); |
1216 | } | |
5e570b75 | 1217 | |
570d7624 | 1218 | #if 0 |
5e570b75 | 1219 | /* Changed this DEFUN to a DEAFUN, so as not to confuse `make-docfile'. */ |
e5d77022 | 1220 | DEAFUN ("expand-file-name", Fexpand_file_name, Sexpand_file_name, 1, 2, 0, |
570d7624 JB |
1221 | "Convert FILENAME to absolute, and canonicalize it.\n\ |
1222 | Second arg DEFAULT is directory to start with if FILENAME is relative\n\ | |
1223 | (does not start with slash); if DEFAULT is nil or missing,\n\ | |
1224 | the current buffer's value of default-directory is used.\n\ | |
1225 | Filenames containing `.' or `..' as components are simplified;\n\ | |
1226 | initial `~/' expands to your home directory.\n\ | |
1227 | See also the function `substitute-in-file-name'.") | |
1228 | (name, defalt) | |
1229 | Lisp_Object name, defalt; | |
1230 | { | |
1231 | unsigned char *nm; | |
1232 | ||
1233 | register unsigned char *newdir, *p, *o; | |
1234 | int tlen; | |
1235 | unsigned char *target; | |
1236 | struct passwd *pw; | |
1237 | int lose; | |
1238 | #ifdef VMS | |
1239 | unsigned char * colon = 0; | |
1240 | unsigned char * close = 0; | |
1241 | unsigned char * slash = 0; | |
1242 | unsigned char * brack = 0; | |
1243 | int lbrack = 0, rbrack = 0; | |
1244 | int dots = 0; | |
1245 | #endif /* VMS */ | |
1246 | ||
1247 | CHECK_STRING (name, 0); | |
1248 | ||
1249 | #ifdef VMS | |
1250 | /* Filenames on VMS are always upper case. */ | |
1251 | name = Fupcase (name); | |
1252 | #endif | |
1253 | ||
1254 | nm = XSTRING (name)->data; | |
1255 | ||
1256 | /* If nm is absolute, flush ...// and detect /./ and /../. | |
1257 | If no /./ or /../ we can return right away. */ | |
1258 | if ( | |
1259 | nm[0] == '/' | |
1260 | #ifdef VMS | |
1261 | || index (nm, ':') | |
1262 | #endif /* VMS */ | |
1263 | ) | |
1264 | { | |
1265 | p = nm; | |
1266 | lose = 0; | |
1267 | while (*p) | |
1268 | { | |
1269 | if (p[0] == '/' && p[1] == '/' | |
1270 | #ifdef APOLLO | |
1271 | /* // at start of filename is meaningful on Apollo system */ | |
1272 | && nm != p | |
1273 | #endif /* APOLLO */ | |
1274 | ) | |
1275 | nm = p + 1; | |
1276 | if (p[0] == '/' && p[1] == '~') | |
1277 | nm = p + 1, lose = 1; | |
1278 | if (p[0] == '/' && p[1] == '.' | |
1279 | && (p[2] == '/' || p[2] == 0 | |
1280 | || (p[2] == '.' && (p[3] == '/' || p[3] == 0)))) | |
1281 | lose = 1; | |
1282 | #ifdef VMS | |
1283 | if (p[0] == '\\') | |
1284 | lose = 1; | |
1285 | if (p[0] == '/') { | |
1286 | /* if dev:[dir]/, move nm to / */ | |
1287 | if (!slash && p > nm && (brack || colon)) { | |
1288 | nm = (brack ? brack + 1 : colon + 1); | |
1289 | lbrack = rbrack = 0; | |
1290 | brack = 0; | |
1291 | colon = 0; | |
1292 | } | |
1293 | slash = p; | |
1294 | } | |
1295 | if (p[0] == '-') | |
1296 | #ifndef VMS4_4 | |
1297 | /* VMS pre V4.4,convert '-'s in filenames. */ | |
1298 | if (lbrack == rbrack) | |
1299 | { | |
5e570b75 | 1300 | if (dots < 2) /* this is to allow negative version numbers */ |
570d7624 JB |
1301 | p[0] = '_'; |
1302 | } | |
1303 | else | |
1304 | #endif /* VMS4_4 */ | |
1305 | if (lbrack > rbrack && | |
1306 | ((p[-1] == '.' || p[-1] == '[' || p[-1] == '<') && | |
1307 | (p[1] == '.' || p[1] == ']' || p[1] == '>'))) | |
1308 | lose = 1; | |
1309 | #ifndef VMS4_4 | |
1310 | else | |
1311 | p[0] = '_'; | |
1312 | #endif /* VMS4_4 */ | |
1313 | /* count open brackets, reset close bracket pointer */ | |
1314 | if (p[0] == '[' || p[0] == '<') | |
1315 | lbrack++, brack = 0; | |
1316 | /* count close brackets, set close bracket pointer */ | |
1317 | if (p[0] == ']' || p[0] == '>') | |
1318 | rbrack++, brack = p; | |
1319 | /* detect ][ or >< */ | |
1320 | if ((p[0] == ']' || p[0] == '>') && (p[1] == '[' || p[1] == '<')) | |
1321 | lose = 1; | |
1322 | if ((p[0] == ':' || p[0] == ']' || p[0] == '>') && p[1] == '~') | |
1323 | nm = p + 1, lose = 1; | |
1324 | if (p[0] == ':' && (colon || slash)) | |
1325 | /* if dev1:[dir]dev2:, move nm to dev2: */ | |
1326 | if (brack) | |
1327 | { | |
1328 | nm = brack + 1; | |
1329 | brack = 0; | |
1330 | } | |
1331 | /* if /pathname/dev:, move nm to dev: */ | |
1332 | else if (slash) | |
1333 | nm = slash + 1; | |
1334 | /* if node::dev:, move colon following dev */ | |
1335 | else if (colon && colon[-1] == ':') | |
1336 | colon = p; | |
1337 | /* if dev1:dev2:, move nm to dev2: */ | |
1338 | else if (colon && colon[-1] != ':') | |
1339 | { | |
1340 | nm = colon + 1; | |
1341 | colon = 0; | |
1342 | } | |
1343 | if (p[0] == ':' && !colon) | |
1344 | { | |
1345 | if (p[1] == ':') | |
1346 | p++; | |
1347 | colon = p; | |
1348 | } | |
1349 | if (lbrack == rbrack) | |
1350 | if (p[0] == ';') | |
1351 | dots = 2; | |
1352 | else if (p[0] == '.') | |
1353 | dots++; | |
1354 | #endif /* VMS */ | |
1355 | p++; | |
1356 | } | |
1357 | if (!lose) | |
1358 | { | |
1359 | #ifdef VMS | |
1360 | if (index (nm, '/')) | |
1361 | return build_string (sys_translate_unix (nm)); | |
1362 | #endif /* VMS */ | |
1363 | if (nm == XSTRING (name)->data) | |
1364 | return name; | |
1365 | return build_string (nm); | |
1366 | } | |
1367 | } | |
1368 | ||
1369 | /* Now determine directory to start with and put it in NEWDIR */ | |
1370 | ||
1371 | newdir = 0; | |
1372 | ||
5e570b75 | 1373 | if (nm[0] == '~') /* prefix ~ */ |
570d7624 JB |
1374 | if (nm[1] == '/' |
1375 | #ifdef VMS | |
1376 | || nm[1] == ':' | |
1377 | #endif /* VMS */ | |
1378 | || nm[1] == 0)/* ~/filename */ | |
1379 | { | |
1380 | if (!(newdir = (unsigned char *) egetenv ("HOME"))) | |
1381 | newdir = (unsigned char *) ""; | |
1382 | nm++; | |
1383 | #ifdef VMS | |
5e570b75 | 1384 | nm++; /* Don't leave the slash in nm. */ |
570d7624 JB |
1385 | #endif /* VMS */ |
1386 | } | |
1387 | else /* ~user/filename */ | |
1388 | { | |
1389 | /* Get past ~ to user */ | |
1390 | unsigned char *user = nm + 1; | |
1391 | /* Find end of name. */ | |
1392 | unsigned char *ptr = (unsigned char *) index (user, '/'); | |
1393 | int len = ptr ? ptr - user : strlen (user); | |
1394 | #ifdef VMS | |
1395 | unsigned char *ptr1 = index (user, ':'); | |
1396 | if (ptr1 != 0 && ptr1 - user < len) | |
1397 | len = ptr1 - user; | |
5e570b75 | 1398 | #endif /* VMS */ |
570d7624 JB |
1399 | /* Copy the user name into temp storage. */ |
1400 | o = (unsigned char *) alloca (len + 1); | |
1401 | bcopy ((char *) user, o, len); | |
1402 | o[len] = 0; | |
1403 | ||
1404 | /* Look up the user name. */ | |
1405 | pw = (struct passwd *) getpwnam (o + 1); | |
1406 | if (!pw) | |
1407 | error ("\"%s\" isn't a registered user", o + 1); | |
1408 | ||
1409 | newdir = (unsigned char *) pw->pw_dir; | |
1410 | ||
1411 | /* Discard the user name from NM. */ | |
1412 | nm += len; | |
1413 | } | |
1414 | ||
1415 | if (nm[0] != '/' | |
1416 | #ifdef VMS | |
1417 | && !index (nm, ':') | |
1418 | #endif /* not VMS */ | |
1419 | && !newdir) | |
1420 | { | |
265a9e55 | 1421 | if (NILP (defalt)) |
570d7624 JB |
1422 | defalt = current_buffer->directory; |
1423 | CHECK_STRING (defalt, 1); | |
1424 | newdir = XSTRING (defalt)->data; | |
1425 | } | |
1426 | ||
1427 | /* Now concatenate the directory and name to new space in the stack frame */ | |
1428 | ||
1429 | tlen = (newdir ? strlen (newdir) + 1 : 0) + strlen (nm) + 1; | |
1430 | target = (unsigned char *) alloca (tlen); | |
1431 | *target = 0; | |
1432 | ||
1433 | if (newdir) | |
1434 | { | |
1435 | #ifndef VMS | |
1436 | if (nm[0] == 0 || nm[0] == '/') | |
1437 | strcpy (target, newdir); | |
1438 | else | |
1439 | #endif | |
1440 | file_name_as_directory (target, newdir); | |
1441 | } | |
1442 | ||
1443 | strcat (target, nm); | |
1444 | #ifdef VMS | |
1445 | if (index (target, '/')) | |
1446 | strcpy (target, sys_translate_unix (target)); | |
1447 | #endif /* VMS */ | |
1448 | ||
1449 | /* Now canonicalize by removing /. and /foo/.. if they appear */ | |
1450 | ||
1451 | p = target; | |
1452 | o = target; | |
1453 | ||
1454 | while (*p) | |
1455 | { | |
1456 | #ifdef VMS | |
1457 | if (*p != ']' && *p != '>' && *p != '-') | |
1458 | { | |
1459 | if (*p == '\\') | |
1460 | p++; | |
1461 | *o++ = *p++; | |
1462 | } | |
1463 | else if ((p[0] == ']' || p[0] == '>') && p[0] == p[1] + 2) | |
1464 | /* brackets are offset from each other by 2 */ | |
1465 | { | |
1466 | p += 2; | |
1467 | if (*p != '.' && *p != '-' && o[-1] != '.') | |
1468 | /* convert [foo][bar] to [bar] */ | |
1469 | while (o[-1] != '[' && o[-1] != '<') | |
1470 | o--; | |
1471 | else if (*p == '-' && *o != '.') | |
1472 | *--p = '.'; | |
1473 | } | |
1474 | else if (p[0] == '-' && o[-1] == '.' && | |
1475 | (p[1] == '.' || p[1] == ']' || p[1] == '>')) | |
1476 | /* flush .foo.- ; leave - if stopped by '[' or '<' */ | |
1477 | { | |
1478 | do | |
1479 | o--; | |
1480 | while (o[-1] != '.' && o[-1] != '[' && o[-1] != '<'); | |
5e570b75 | 1481 | if (p[1] == '.') /* foo.-.bar ==> bar. */ |
570d7624 JB |
1482 | p += 2; |
1483 | else if (o[-1] == '.') /* '.foo.-]' ==> ']' */ | |
1484 | p++, o--; | |
1485 | /* else [foo.-] ==> [-] */ | |
1486 | } | |
1487 | else | |
1488 | { | |
1489 | #ifndef VMS4_4 | |
1490 | if (*p == '-' && | |
1491 | o[-1] != '[' && o[-1] != '<' && o[-1] != '.' && | |
1492 | p[1] != ']' && p[1] != '>' && p[1] != '.') | |
1493 | *p = '_'; | |
1494 | #endif /* VMS4_4 */ | |
1495 | *o++ = *p++; | |
1496 | } | |
1497 | #else /* not VMS */ | |
1498 | if (*p != '/') | |
5e570b75 | 1499 | { |
570d7624 JB |
1500 | *o++ = *p++; |
1501 | } | |
1502 | else if (!strncmp (p, "//", 2) | |
1503 | #ifdef APOLLO | |
1504 | /* // at start of filename is meaningful in Apollo system */ | |
1505 | && o != target | |
1506 | #endif /* APOLLO */ | |
1507 | ) | |
1508 | { | |
1509 | o = target; | |
1510 | p++; | |
1511 | } | |
1512 | else if (p[0] == '/' && p[1] == '.' && | |
1513 | (p[2] == '/' || p[2] == 0)) | |
1514 | p += 2; | |
1515 | else if (!strncmp (p, "/..", 3) | |
1516 | /* `/../' is the "superroot" on certain file systems. */ | |
1517 | && o != target | |
1518 | && (p[3] == '/' || p[3] == 0)) | |
1519 | { | |
1520 | while (o != target && *--o != '/') | |
1521 | ; | |
1522 | #ifdef APOLLO | |
1523 | if (o == target + 1 && o[-1] == '/' && o[0] == '/') | |
1524 | ++o; | |
1525 | else | |
1526 | #endif /* APOLLO */ | |
1527 | if (o == target && *o == '/') | |
1528 | ++o; | |
1529 | p += 3; | |
1530 | } | |
1531 | else | |
5e570b75 | 1532 | { |
570d7624 JB |
1533 | *o++ = *p++; |
1534 | } | |
1535 | #endif /* not VMS */ | |
1536 | } | |
1537 | ||
1538 | return make_string (target, o - target); | |
1539 | } | |
1540 | #endif | |
1541 | \f | |
1542 | DEFUN ("substitute-in-file-name", Fsubstitute_in_file_name, | |
1543 | Ssubstitute_in_file_name, 1, 1, 0, | |
1544 | "Substitute environment variables referred to in FILENAME.\n\ | |
1545 | `$FOO' where FOO is an environment variable name means to substitute\n\ | |
1546 | the value of that variable. The variable name should be terminated\n\ | |
1547 | with a character not a letter, digit or underscore; otherwise, enclose\n\ | |
1548 | the entire variable name in braces.\n\ | |
1549 | If `/~' appears, all of FILENAME through that `/' is discarded.\n\n\ | |
1550 | On VMS, `$' substitution is not done; this function does little and only\n\ | |
1551 | duplicates what `expand-file-name' does.") | |
1552 | (string) | |
1553 | Lisp_Object string; | |
1554 | { | |
1555 | unsigned char *nm; | |
1556 | ||
1557 | register unsigned char *s, *p, *o, *x, *endp; | |
1558 | unsigned char *target; | |
1559 | int total = 0; | |
1560 | int substituted = 0; | |
1561 | unsigned char *xnm; | |
8ce069f5 | 1562 | Lisp_Object handler; |
570d7624 JB |
1563 | |
1564 | CHECK_STRING (string, 0); | |
1565 | ||
8ce069f5 RS |
1566 | /* If the file name has special constructs in it, |
1567 | call the corresponding file handler. */ | |
1568 | handler = Ffind_file_name_handler (string, Qsubstitute_in_file_name); | |
1569 | if (!NILP (handler)) | |
1570 | return call2 (handler, Qsubstitute_in_file_name, string); | |
1571 | ||
570d7624 | 1572 | nm = XSTRING (string)->data; |
a5a1cc06 RS |
1573 | #ifdef MSDOS |
1574 | dostounix_filename (nm = strcpy (alloca (strlen (nm) + 1), nm)); | |
1575 | substituted = !strcmp (nm, XSTRING (string)->data); | |
1576 | #endif | |
570d7624 JB |
1577 | endp = nm + XSTRING (string)->size; |
1578 | ||
1579 | /* If /~ or // appears, discard everything through first slash. */ | |
1580 | ||
1581 | for (p = nm; p != endp; p++) | |
1582 | { | |
1583 | if ((p[0] == '~' || | |
1584 | #ifdef APOLLO | |
1585 | /* // at start of file name is meaningful in Apollo system */ | |
1586 | (p[0] == '/' && p - 1 != nm) | |
1587 | #else /* not APOLLO */ | |
5e570b75 RS |
1588 | #ifdef WINDOWSNT |
1589 | (IS_DIRECTORY_SEP (p[0]) && p - 1 != nm) | |
1590 | #else /* not WINDOWSNT */ | |
570d7624 | 1591 | p[0] == '/' |
5e570b75 | 1592 | #endif /* not WINDOWSNT */ |
570d7624 JB |
1593 | #endif /* not APOLLO */ |
1594 | ) | |
5e570b75 RS |
1595 | && p != nm |
1596 | && (0 | |
570d7624 | 1597 | #ifdef VMS |
5e570b75 | 1598 | || p[-1] == ':' || p[-1] == ']' || p[-1] == '>' |
570d7624 | 1599 | #endif /* VMS */ |
5e570b75 | 1600 | || IS_DIRECTORY_SEP (p[-1]))) |
570d7624 JB |
1601 | { |
1602 | nm = p; | |
1603 | substituted = 1; | |
1604 | } | |
5e570b75 | 1605 | #ifdef DOS_NT |
4c3c22f3 RS |
1606 | if (p[0] && p[1] == ':') |
1607 | { | |
1608 | nm = p; | |
1609 | substituted = 1; | |
1610 | } | |
5e570b75 | 1611 | #endif /* DOS_NT */ |
570d7624 JB |
1612 | } |
1613 | ||
1614 | #ifdef VMS | |
1615 | return build_string (nm); | |
1616 | #else | |
1617 | ||
1618 | /* See if any variables are substituted into the string | |
1619 | and find the total length of their values in `total' */ | |
1620 | ||
1621 | for (p = nm; p != endp;) | |
1622 | if (*p != '$') | |
1623 | p++; | |
1624 | else | |
1625 | { | |
1626 | p++; | |
1627 | if (p == endp) | |
1628 | goto badsubst; | |
1629 | else if (*p == '$') | |
1630 | { | |
1631 | /* "$$" means a single "$" */ | |
1632 | p++; | |
1633 | total -= 1; | |
1634 | substituted = 1; | |
1635 | continue; | |
1636 | } | |
1637 | else if (*p == '{') | |
1638 | { | |
1639 | o = ++p; | |
1640 | while (p != endp && *p != '}') p++; | |
1641 | if (*p != '}') goto missingclose; | |
1642 | s = p; | |
1643 | } | |
1644 | else | |
1645 | { | |
1646 | o = p; | |
1647 | while (p != endp && (isalnum (*p) || *p == '_')) p++; | |
1648 | s = p; | |
1649 | } | |
1650 | ||
1651 | /* Copy out the variable name */ | |
1652 | target = (unsigned char *) alloca (s - o + 1); | |
1653 | strncpy (target, o, s - o); | |
1654 | target[s - o] = 0; | |
5e570b75 | 1655 | #ifdef DOS_NT |
4c3c22f3 | 1656 | strupr (target); /* $home == $HOME etc. */ |
5e570b75 | 1657 | #endif /* DOS_NT */ |
570d7624 JB |
1658 | |
1659 | /* Get variable value */ | |
1660 | o = (unsigned char *) egetenv (target); | |
570d7624 JB |
1661 | if (!o) goto badvar; |
1662 | total += strlen (o); | |
1663 | substituted = 1; | |
1664 | } | |
1665 | ||
1666 | if (!substituted) | |
1667 | return string; | |
1668 | ||
1669 | /* If substitution required, recopy the string and do it */ | |
1670 | /* Make space in stack frame for the new copy */ | |
1671 | xnm = (unsigned char *) alloca (XSTRING (string)->size + total + 1); | |
1672 | x = xnm; | |
1673 | ||
1674 | /* Copy the rest of the name through, replacing $ constructs with values */ | |
1675 | for (p = nm; *p;) | |
1676 | if (*p != '$') | |
1677 | *x++ = *p++; | |
1678 | else | |
1679 | { | |
1680 | p++; | |
1681 | if (p == endp) | |
1682 | goto badsubst; | |
1683 | else if (*p == '$') | |
1684 | { | |
1685 | *x++ = *p++; | |
1686 | continue; | |
1687 | } | |
1688 | else if (*p == '{') | |
1689 | { | |
1690 | o = ++p; | |
1691 | while (p != endp && *p != '}') p++; | |
1692 | if (*p != '}') goto missingclose; | |
1693 | s = p++; | |
1694 | } | |
1695 | else | |
1696 | { | |
1697 | o = p; | |
1698 | while (p != endp && (isalnum (*p) || *p == '_')) p++; | |
1699 | s = p; | |
1700 | } | |
1701 | ||
1702 | /* Copy out the variable name */ | |
1703 | target = (unsigned char *) alloca (s - o + 1); | |
1704 | strncpy (target, o, s - o); | |
1705 | target[s - o] = 0; | |
5e570b75 | 1706 | #ifdef DOS_NT |
4c3c22f3 | 1707 | strupr (target); /* $home == $HOME etc. */ |
5e570b75 | 1708 | #endif /* DOS_NT */ |
570d7624 JB |
1709 | |
1710 | /* Get variable value */ | |
1711 | o = (unsigned char *) egetenv (target); | |
570d7624 JB |
1712 | if (!o) |
1713 | goto badvar; | |
1714 | ||
1715 | strcpy (x, o); | |
1716 | x += strlen (o); | |
1717 | } | |
1718 | ||
1719 | *x = 0; | |
1720 | ||
1721 | /* If /~ or // appears, discard everything through first slash. */ | |
1722 | ||
1723 | for (p = xnm; p != x; p++) | |
5e570b75 | 1724 | if ((p[0] == '~' |
570d7624 JB |
1725 | #ifdef APOLLO |
1726 | /* // at start of file name is meaningful in Apollo system */ | |
5e570b75 | 1727 | || (p[0] == '/' && p - 1 != xnm) |
570d7624 | 1728 | #else /* not APOLLO */ |
5e570b75 RS |
1729 | #ifdef WINDOWSNT |
1730 | || (IS_DIRECTORY_SEP (p[0]) && p - 1 != xnm) | |
1731 | #else /* not WINDOWSNT */ | |
1732 | || p[0] == '/' | |
1733 | #endif /* not WINDOWSNT */ | |
55928174 | 1734 | #endif /* not APOLLO */ |
570d7624 | 1735 | ) |
5e570b75 | 1736 | && p != nm && IS_DIRECTORY_SEP (p[-1])) |
570d7624 | 1737 | xnm = p; |
5e570b75 | 1738 | #ifdef DOS_NT |
4c3c22f3 RS |
1739 | else if (p[0] && p[1] == ':') |
1740 | xnm = p; | |
1741 | #endif | |
570d7624 JB |
1742 | |
1743 | return make_string (xnm, x - xnm); | |
1744 | ||
1745 | badsubst: | |
1746 | error ("Bad format environment-variable substitution"); | |
1747 | missingclose: | |
1748 | error ("Missing \"}\" in environment-variable substitution"); | |
1749 | badvar: | |
1750 | error ("Substituting nonexistent environment variable \"%s\"", target); | |
1751 | ||
1752 | /* NOTREACHED */ | |
1753 | #endif /* not VMS */ | |
1754 | } | |
1755 | \f | |
067ffa38 | 1756 | /* A slightly faster and more convenient way to get |
298b760e | 1757 | (directory-file-name (expand-file-name FOO)). */ |
067ffa38 | 1758 | |
570d7624 JB |
1759 | Lisp_Object |
1760 | expand_and_dir_to_file (filename, defdir) | |
1761 | Lisp_Object filename, defdir; | |
1762 | { | |
1763 | register Lisp_Object abspath; | |
1764 | ||
1765 | abspath = Fexpand_file_name (filename, defdir); | |
1766 | #ifdef VMS | |
1767 | { | |
1768 | register int c = XSTRING (abspath)->data[XSTRING (abspath)->size - 1]; | |
1769 | if (c == ':' || c == ']' || c == '>') | |
1770 | abspath = Fdirectory_file_name (abspath); | |
1771 | } | |
1772 | #else | |
1773 | /* Remove final slash, if any (unless path is root). | |
1774 | stat behaves differently depending! */ | |
1775 | if (XSTRING (abspath)->size > 1 | |
5e570b75 RS |
1776 | && IS_DIRECTORY_SEP (XSTRING (abspath)->data[XSTRING (abspath)->size - 1]) |
1777 | && !IS_DEVICE_SEP (XSTRING (abspath)->data[XSTRING (abspath)->size-2])) | |
ddc61f46 RS |
1778 | /* We cannot take shortcuts; they might be wrong for magic file names. */ |
1779 | abspath = Fdirectory_file_name (abspath); | |
570d7624 JB |
1780 | #endif |
1781 | return abspath; | |
1782 | } | |
1783 | \f | |
c4df73f9 | 1784 | void |
570d7624 JB |
1785 | barf_or_query_if_file_exists (absname, querystring, interactive) |
1786 | Lisp_Object absname; | |
1787 | unsigned char *querystring; | |
1788 | int interactive; | |
1789 | { | |
1790 | register Lisp_Object tem; | |
4018b5ef | 1791 | struct stat statbuf; |
570d7624 JB |
1792 | struct gcpro gcpro1; |
1793 | ||
4018b5ef RS |
1794 | /* stat is a good way to tell whether the file exists, |
1795 | regardless of what access permissions it has. */ | |
1796 | if (stat (XSTRING (absname)->data, &statbuf) >= 0) | |
570d7624 JB |
1797 | { |
1798 | if (! interactive) | |
1799 | Fsignal (Qfile_already_exists, | |
1800 | Fcons (build_string ("File already exists"), | |
1801 | Fcons (absname, Qnil))); | |
1802 | GCPRO1 (absname); | |
1803 | tem = do_yes_or_no_p (format1 ("File %s already exists; %s anyway? ", | |
1804 | XSTRING (absname)->data, querystring)); | |
1805 | UNGCPRO; | |
265a9e55 | 1806 | if (NILP (tem)) |
570d7624 JB |
1807 | Fsignal (Qfile_already_exists, |
1808 | Fcons (build_string ("File already exists"), | |
1809 | Fcons (absname, Qnil))); | |
1810 | } | |
1811 | return; | |
1812 | } | |
1813 | ||
1814 | DEFUN ("copy-file", Fcopy_file, Scopy_file, 2, 4, | |
349a7710 | 1815 | "fCopy file: \nFCopy %s to file: \np\nP", |
570d7624 JB |
1816 | "Copy FILE to NEWNAME. Both args must be strings.\n\ |
1817 | Signals a `file-already-exists' error if file NEWNAME already exists,\n\ | |
1818 | unless a third argument OK-IF-ALREADY-EXISTS is supplied and non-nil.\n\ | |
1819 | A number as third arg means request confirmation if NEWNAME already exists.\n\ | |
1820 | This is what happens in interactive use with M-x.\n\ | |
349a7710 JB |
1821 | Fourth arg KEEP-TIME non-nil means give the new file the same\n\ |
1822 | last-modified time as the old one. (This works on only some systems.)\n\ | |
1823 | A prefix arg makes KEEP-TIME non-nil.") | |
570d7624 JB |
1824 | (filename, newname, ok_if_already_exists, keep_date) |
1825 | Lisp_Object filename, newname, ok_if_already_exists, keep_date; | |
1826 | { | |
1827 | int ifd, ofd, n; | |
1828 | char buf[16 * 1024]; | |
1829 | struct stat st; | |
32f4334d | 1830 | Lisp_Object handler; |
570d7624 | 1831 | struct gcpro gcpro1, gcpro2; |
b5148e85 | 1832 | int count = specpdl_ptr - specpdl; |
f73b0ada | 1833 | int input_file_statable_p; |
570d7624 JB |
1834 | |
1835 | GCPRO2 (filename, newname); | |
1836 | CHECK_STRING (filename, 0); | |
1837 | CHECK_STRING (newname, 1); | |
1838 | filename = Fexpand_file_name (filename, Qnil); | |
1839 | newname = Fexpand_file_name (newname, Qnil); | |
32f4334d | 1840 | |
0bf2eed2 | 1841 | /* If the input file name has special constructs in it, |
32f4334d | 1842 | call the corresponding file handler. */ |
49307295 | 1843 | handler = Ffind_file_name_handler (filename, Qcopy_file); |
0bf2eed2 | 1844 | /* Likewise for output file name. */ |
51cf6d37 | 1845 | if (NILP (handler)) |
49307295 | 1846 | handler = Ffind_file_name_handler (newname, Qcopy_file); |
32f4334d | 1847 | if (!NILP (handler)) |
36712b0a KH |
1848 | RETURN_UNGCPRO (call5 (handler, Qcopy_file, filename, newname, |
1849 | ok_if_already_exists, keep_date)); | |
32f4334d | 1850 | |
265a9e55 | 1851 | if (NILP (ok_if_already_exists) |
93c30b5f | 1852 | || INTEGERP (ok_if_already_exists)) |
570d7624 | 1853 | barf_or_query_if_file_exists (newname, "copy to it", |
93c30b5f | 1854 | INTEGERP (ok_if_already_exists)); |
570d7624 | 1855 | |
4018b5ef | 1856 | ifd = open (XSTRING (filename)->data, O_RDONLY); |
570d7624 JB |
1857 | if (ifd < 0) |
1858 | report_file_error ("Opening input file", Fcons (filename, Qnil)); | |
1859 | ||
b5148e85 RS |
1860 | record_unwind_protect (close_file_unwind, make_number (ifd)); |
1861 | ||
f73b0ada BF |
1862 | /* We can only copy regular files and symbolic links. Other files are not |
1863 | copyable by us. */ | |
1864 | input_file_statable_p = (fstat (ifd, &st) >= 0); | |
1865 | ||
1866 | #if defined (S_ISREG) && defined (S_ISLNK) | |
1867 | if (input_file_statable_p) | |
1868 | { | |
1869 | if (!(S_ISREG (st.st_mode)) && !(S_ISLNK (st.st_mode))) | |
1870 | { | |
1871 | #if defined (EISDIR) | |
1872 | /* Get a better looking error message. */ | |
1873 | errno = EISDIR; | |
1874 | #endif /* EISDIR */ | |
1875 | report_file_error ("Non-regular file", Fcons (filename, Qnil)); | |
1876 | } | |
1877 | } | |
1878 | #endif /* S_ISREG && S_ISLNK */ | |
1879 | ||
570d7624 JB |
1880 | #ifdef VMS |
1881 | /* Create the copy file with the same record format as the input file */ | |
1882 | ofd = sys_creat (XSTRING (newname)->data, 0666, ifd); | |
1883 | #else | |
4c3c22f3 RS |
1884 | #ifdef MSDOS |
1885 | /* System's default file type was set to binary by _fmode in emacs.c. */ | |
1886 | ofd = creat (XSTRING (newname)->data, S_IREAD | S_IWRITE); | |
1887 | #else /* not MSDOS */ | |
570d7624 | 1888 | ofd = creat (XSTRING (newname)->data, 0666); |
4c3c22f3 | 1889 | #endif /* not MSDOS */ |
570d7624 JB |
1890 | #endif /* VMS */ |
1891 | if (ofd < 0) | |
66331187 | 1892 | report_file_error ("Opening output file", Fcons (newname, Qnil)); |
b5148e85 RS |
1893 | |
1894 | record_unwind_protect (close_file_unwind, make_number (ofd)); | |
570d7624 | 1895 | |
b5148e85 RS |
1896 | immediate_quit = 1; |
1897 | QUIT; | |
570d7624 JB |
1898 | while ((n = read (ifd, buf, sizeof buf)) > 0) |
1899 | if (write (ofd, buf, n) != n) | |
66331187 | 1900 | report_file_error ("I/O error", Fcons (newname, Qnil)); |
b5148e85 | 1901 | immediate_quit = 0; |
570d7624 | 1902 | |
5acac34e RS |
1903 | /* Closing the output clobbers the file times on some systems. */ |
1904 | if (close (ofd) < 0) | |
1905 | report_file_error ("I/O error", Fcons (newname, Qnil)); | |
1906 | ||
f73b0ada | 1907 | if (input_file_statable_p) |
570d7624 | 1908 | { |
265a9e55 | 1909 | if (!NILP (keep_date)) |
570d7624 | 1910 | { |
de5bf5d3 JB |
1911 | EMACS_TIME atime, mtime; |
1912 | EMACS_SET_SECS_USECS (atime, st.st_atime, 0); | |
1913 | EMACS_SET_SECS_USECS (mtime, st.st_mtime, 0); | |
d6303611 KH |
1914 | if (set_file_times (XSTRING (newname)->data, atime, mtime)) |
1915 | report_file_error ("I/O error", Fcons (newname, Qnil)); | |
570d7624 | 1916 | } |
570d7624 JB |
1917 | #ifdef APOLLO |
1918 | if (!egetenv ("USE_DOMAIN_ACLS")) | |
1919 | #endif | |
de5bf5d3 | 1920 | chmod (XSTRING (newname)->data, st.st_mode & 07777); |
570d7624 JB |
1921 | } |
1922 | ||
5acac34e RS |
1923 | close (ifd); |
1924 | ||
b5148e85 RS |
1925 | /* Discard the unwind protects. */ |
1926 | specpdl_ptr = specpdl + count; | |
1927 | ||
570d7624 JB |
1928 | UNGCPRO; |
1929 | return Qnil; | |
1930 | } | |
385b6cc7 | 1931 | \f |
9bbe01fb | 1932 | DEFUN ("make-directory-internal", Fmake_directory_internal, |
353cfc19 | 1933 | Smake_directory_internal, 1, 1, 0, |
570d7624 JB |
1934 | "Create a directory. One argument, a file name string.") |
1935 | (dirname) | |
1936 | Lisp_Object dirname; | |
1937 | { | |
1938 | unsigned char *dir; | |
32f4334d | 1939 | Lisp_Object handler; |
570d7624 JB |
1940 | |
1941 | CHECK_STRING (dirname, 0); | |
1942 | dirname = Fexpand_file_name (dirname, Qnil); | |
32f4334d | 1943 | |
a6e6e718 | 1944 | handler = Ffind_file_name_handler (dirname, Qmake_directory_internal); |
32f4334d | 1945 | if (!NILP (handler)) |
e508ad53 | 1946 | return call2 (handler, Qmake_directory_internal, dirname); |
9bbe01fb | 1947 | |
570d7624 JB |
1948 | dir = XSTRING (dirname)->data; |
1949 | ||
5e570b75 RS |
1950 | #ifdef WINDOWSNT |
1951 | if (mkdir (dir) != 0) | |
1952 | #else | |
570d7624 | 1953 | if (mkdir (dir, 0777) != 0) |
5e570b75 | 1954 | #endif |
570d7624 JB |
1955 | report_file_error ("Creating directory", Flist (1, &dirname)); |
1956 | ||
32f4334d | 1957 | return Qnil; |
570d7624 JB |
1958 | } |
1959 | ||
aa734e17 | 1960 | DEFUN ("delete-directory", Fdelete_directory, Sdelete_directory, 1, 1, "FDelete directory: ", |
1691b32b | 1961 | "Delete a directory. One argument, a file name or directory name string.") |
570d7624 JB |
1962 | (dirname) |
1963 | Lisp_Object dirname; | |
1964 | { | |
1965 | unsigned char *dir; | |
32f4334d | 1966 | Lisp_Object handler; |
570d7624 JB |
1967 | |
1968 | CHECK_STRING (dirname, 0); | |
1691b32b | 1969 | dirname = Fdirectory_file_name (Fexpand_file_name (dirname, Qnil)); |
570d7624 JB |
1970 | dir = XSTRING (dirname)->data; |
1971 | ||
49307295 | 1972 | handler = Ffind_file_name_handler (dirname, Qdelete_directory); |
32f4334d RS |
1973 | if (!NILP (handler)) |
1974 | return call2 (handler, Qdelete_directory, dirname); | |
1975 | ||
570d7624 JB |
1976 | if (rmdir (dir) != 0) |
1977 | report_file_error ("Removing directory", Flist (1, &dirname)); | |
1978 | ||
1979 | return Qnil; | |
1980 | } | |
1981 | ||
1982 | DEFUN ("delete-file", Fdelete_file, Sdelete_file, 1, 1, "fDelete file: ", | |
1983 | "Delete specified file. One argument, a file name string.\n\ | |
1984 | If file has multiple names, it continues to exist with the other names.") | |
1985 | (filename) | |
1986 | Lisp_Object filename; | |
1987 | { | |
32f4334d | 1988 | Lisp_Object handler; |
570d7624 JB |
1989 | CHECK_STRING (filename, 0); |
1990 | filename = Fexpand_file_name (filename, Qnil); | |
32f4334d | 1991 | |
49307295 | 1992 | handler = Ffind_file_name_handler (filename, Qdelete_file); |
32f4334d | 1993 | if (!NILP (handler)) |
8a9b0da9 | 1994 | return call2 (handler, Qdelete_file, filename); |
32f4334d | 1995 | |
570d7624 JB |
1996 | if (0 > unlink (XSTRING (filename)->data)) |
1997 | report_file_error ("Removing old name", Flist (1, &filename)); | |
8a9b0da9 | 1998 | return Qnil; |
570d7624 JB |
1999 | } |
2000 | ||
385b6cc7 RS |
2001 | static Lisp_Object |
2002 | internal_delete_file_1 (ignore) | |
2003 | Lisp_Object ignore; | |
2004 | { | |
2005 | return Qt; | |
2006 | } | |
2007 | ||
2008 | /* Delete file FILENAME, returning 1 if successful and 0 if failed. */ | |
2009 | ||
2010 | int | |
2011 | internal_delete_file (filename) | |
2012 | Lisp_Object filename; | |
2013 | { | |
2014 | return NILP (internal_condition_case_1 (Fdelete_file, filename, | |
2015 | Qt, internal_delete_file_1)); | |
2016 | } | |
2017 | \f | |
570d7624 JB |
2018 | DEFUN ("rename-file", Frename_file, Srename_file, 2, 3, |
2019 | "fRename file: \nFRename %s to file: \np", | |
2020 | "Rename FILE as NEWNAME. Both args strings.\n\ | |
2021 | If file has names other than FILE, it continues to have those names.\n\ | |
2022 | Signals a `file-already-exists' error if a file NEWNAME already exists\n\ | |
2023 | unless optional third argument OK-IF-ALREADY-EXISTS is non-nil.\n\ | |
2024 | A number as third arg means request confirmation if NEWNAME already exists.\n\ | |
2025 | This is what happens in interactive use with M-x.") | |
2026 | (filename, newname, ok_if_already_exists) | |
2027 | Lisp_Object filename, newname, ok_if_already_exists; | |
2028 | { | |
2029 | #ifdef NO_ARG_ARRAY | |
2030 | Lisp_Object args[2]; | |
2031 | #endif | |
32f4334d | 2032 | Lisp_Object handler; |
570d7624 JB |
2033 | struct gcpro gcpro1, gcpro2; |
2034 | ||
2035 | GCPRO2 (filename, newname); | |
2036 | CHECK_STRING (filename, 0); | |
2037 | CHECK_STRING (newname, 1); | |
2038 | filename = Fexpand_file_name (filename, Qnil); | |
2039 | newname = Fexpand_file_name (newname, Qnil); | |
32f4334d RS |
2040 | |
2041 | /* If the file name has special constructs in it, | |
2042 | call the corresponding file handler. */ | |
49307295 | 2043 | handler = Ffind_file_name_handler (filename, Qrename_file); |
51cf6d37 | 2044 | if (NILP (handler)) |
49307295 | 2045 | handler = Ffind_file_name_handler (newname, Qrename_file); |
32f4334d | 2046 | if (!NILP (handler)) |
36712b0a KH |
2047 | RETURN_UNGCPRO (call4 (handler, Qrename_file, |
2048 | filename, newname, ok_if_already_exists)); | |
32f4334d | 2049 | |
265a9e55 | 2050 | if (NILP (ok_if_already_exists) |
93c30b5f | 2051 | || INTEGERP (ok_if_already_exists)) |
570d7624 | 2052 | barf_or_query_if_file_exists (newname, "rename to it", |
93c30b5f | 2053 | INTEGERP (ok_if_already_exists)); |
570d7624 JB |
2054 | #ifndef BSD4_1 |
2055 | if (0 > rename (XSTRING (filename)->data, XSTRING (newname)->data)) | |
2056 | #else | |
5e570b75 RS |
2057 | #ifdef WINDOWSNT |
2058 | if (!MoveFile (XSTRING (filename)->data, XSTRING (newname)->data)) | |
2059 | #else /* not WINDOWSNT */ | |
570d7624 JB |
2060 | if (0 > link (XSTRING (filename)->data, XSTRING (newname)->data) |
2061 | || 0 > unlink (XSTRING (filename)->data)) | |
5e570b75 | 2062 | #endif /* not WINDOWSNT */ |
570d7624 JB |
2063 | #endif |
2064 | { | |
5e570b75 RS |
2065 | #ifdef WINDOWSNT |
2066 | /* Why two? And why doesn't MS document what MoveFile will return? */ | |
2067 | if (GetLastError () == ERROR_FILE_EXISTS | |
2068 | || GetLastError () == ERROR_ALREADY_EXISTS) | |
2069 | #else /* not WINDOWSNT */ | |
570d7624 | 2070 | if (errno == EXDEV) |
5e570b75 | 2071 | #endif /* not WINDOWSNT */ |
570d7624 | 2072 | { |
d093c3ac RM |
2073 | Fcopy_file (filename, newname, |
2074 | /* We have already prompted if it was an integer, | |
2075 | so don't have copy-file prompt again. */ | |
2076 | NILP (ok_if_already_exists) ? Qnil : Qt, Qt); | |
570d7624 JB |
2077 | Fdelete_file (filename); |
2078 | } | |
2079 | else | |
2080 | #ifdef NO_ARG_ARRAY | |
2081 | { | |
2082 | args[0] = filename; | |
2083 | args[1] = newname; | |
2084 | report_file_error ("Renaming", Flist (2, args)); | |
2085 | } | |
2086 | #else | |
2087 | report_file_error ("Renaming", Flist (2, &filename)); | |
2088 | #endif | |
2089 | } | |
2090 | UNGCPRO; | |
2091 | return Qnil; | |
2092 | } | |
2093 | ||
2094 | DEFUN ("add-name-to-file", Fadd_name_to_file, Sadd_name_to_file, 2, 3, | |
2095 | "fAdd name to file: \nFName to add to %s: \np", | |
2096 | "Give FILE additional name NEWNAME. Both args strings.\n\ | |
2097 | Signals a `file-already-exists' error if a file NEWNAME already exists\n\ | |
2098 | unless optional third argument OK-IF-ALREADY-EXISTS is non-nil.\n\ | |
2099 | A number as third arg means request confirmation if NEWNAME already exists.\n\ | |
2100 | This is what happens in interactive use with M-x.") | |
2101 | (filename, newname, ok_if_already_exists) | |
2102 | Lisp_Object filename, newname, ok_if_already_exists; | |
2103 | { | |
2104 | #ifdef NO_ARG_ARRAY | |
2105 | Lisp_Object args[2]; | |
2106 | #endif | |
32f4334d | 2107 | Lisp_Object handler; |
570d7624 JB |
2108 | struct gcpro gcpro1, gcpro2; |
2109 | ||
2110 | GCPRO2 (filename, newname); | |
2111 | CHECK_STRING (filename, 0); | |
2112 | CHECK_STRING (newname, 1); | |
2113 | filename = Fexpand_file_name (filename, Qnil); | |
2114 | newname = Fexpand_file_name (newname, Qnil); | |
32f4334d RS |
2115 | |
2116 | /* If the file name has special constructs in it, | |
2117 | call the corresponding file handler. */ | |
49307295 | 2118 | handler = Ffind_file_name_handler (filename, Qadd_name_to_file); |
32f4334d | 2119 | if (!NILP (handler)) |
36712b0a KH |
2120 | RETURN_UNGCPRO (call4 (handler, Qadd_name_to_file, filename, |
2121 | newname, ok_if_already_exists)); | |
32f4334d | 2122 | |
265a9e55 | 2123 | if (NILP (ok_if_already_exists) |
93c30b5f | 2124 | || INTEGERP (ok_if_already_exists)) |
570d7624 | 2125 | barf_or_query_if_file_exists (newname, "make it a new name", |
93c30b5f | 2126 | INTEGERP (ok_if_already_exists)); |
5e570b75 RS |
2127 | #ifdef WINDOWSNT |
2128 | /* Windows does not support this operation. */ | |
2129 | report_file_error ("Adding new name", Flist (2, &filename)); | |
2130 | #else /* not WINDOWSNT */ | |
2131 | ||
570d7624 JB |
2132 | unlink (XSTRING (newname)->data); |
2133 | if (0 > link (XSTRING (filename)->data, XSTRING (newname)->data)) | |
2134 | { | |
2135 | #ifdef NO_ARG_ARRAY | |
2136 | args[0] = filename; | |
2137 | args[1] = newname; | |
2138 | report_file_error ("Adding new name", Flist (2, args)); | |
2139 | #else | |
2140 | report_file_error ("Adding new name", Flist (2, &filename)); | |
2141 | #endif | |
2142 | } | |
5e570b75 | 2143 | #endif /* not WINDOWSNT */ |
570d7624 JB |
2144 | |
2145 | UNGCPRO; | |
2146 | return Qnil; | |
2147 | } | |
2148 | ||
2149 | #ifdef S_IFLNK | |
2150 | DEFUN ("make-symbolic-link", Fmake_symbolic_link, Smake_symbolic_link, 2, 3, | |
2151 | "FMake symbolic link to file: \nFMake symbolic link to file %s: \np", | |
2152 | "Make a symbolic link to FILENAME, named LINKNAME. Both args strings.\n\ | |
11183104 | 2153 | Signals a `file-already-exists' error if a file LINKNAME already exists\n\ |
570d7624 | 2154 | unless optional third argument OK-IF-ALREADY-EXISTS is non-nil.\n\ |
11183104 | 2155 | A number as third arg means request confirmation if LINKNAME already exists.\n\ |
570d7624 | 2156 | This happens for interactive use with M-x.") |
e5d77022 JB |
2157 | (filename, linkname, ok_if_already_exists) |
2158 | Lisp_Object filename, linkname, ok_if_already_exists; | |
570d7624 JB |
2159 | { |
2160 | #ifdef NO_ARG_ARRAY | |
2161 | Lisp_Object args[2]; | |
2162 | #endif | |
32f4334d | 2163 | Lisp_Object handler; |
570d7624 JB |
2164 | struct gcpro gcpro1, gcpro2; |
2165 | ||
e5d77022 | 2166 | GCPRO2 (filename, linkname); |
570d7624 | 2167 | CHECK_STRING (filename, 0); |
e5d77022 | 2168 | CHECK_STRING (linkname, 1); |
d9bc1c99 RS |
2169 | /* If the link target has a ~, we must expand it to get |
2170 | a truly valid file name. Otherwise, do not expand; | |
2171 | we want to permit links to relative file names. */ | |
2172 | if (XSTRING (filename)->data[0] == '~') | |
2173 | filename = Fexpand_file_name (filename, Qnil); | |
e5d77022 | 2174 | linkname = Fexpand_file_name (linkname, Qnil); |
32f4334d RS |
2175 | |
2176 | /* If the file name has special constructs in it, | |
2177 | call the corresponding file handler. */ | |
49307295 | 2178 | handler = Ffind_file_name_handler (filename, Qmake_symbolic_link); |
32f4334d | 2179 | if (!NILP (handler)) |
36712b0a KH |
2180 | RETURN_UNGCPRO (call4 (handler, Qmake_symbolic_link, filename, |
2181 | linkname, ok_if_already_exists)); | |
32f4334d | 2182 | |
265a9e55 | 2183 | if (NILP (ok_if_already_exists) |
93c30b5f | 2184 | || INTEGERP (ok_if_already_exists)) |
e5d77022 | 2185 | barf_or_query_if_file_exists (linkname, "make it a link", |
93c30b5f | 2186 | INTEGERP (ok_if_already_exists)); |
e5d77022 | 2187 | if (0 > symlink (XSTRING (filename)->data, XSTRING (linkname)->data)) |
570d7624 JB |
2188 | { |
2189 | /* If we didn't complain already, silently delete existing file. */ | |
2190 | if (errno == EEXIST) | |
2191 | { | |
9083124b | 2192 | unlink (XSTRING (linkname)->data); |
e5d77022 | 2193 | if (0 <= symlink (XSTRING (filename)->data, XSTRING (linkname)->data)) |
1a04498e KH |
2194 | { |
2195 | UNGCPRO; | |
2196 | return Qnil; | |
2197 | } | |
570d7624 JB |
2198 | } |
2199 | ||
2200 | #ifdef NO_ARG_ARRAY | |
2201 | args[0] = filename; | |
e5d77022 | 2202 | args[1] = linkname; |
570d7624 JB |
2203 | report_file_error ("Making symbolic link", Flist (2, args)); |
2204 | #else | |
2205 | report_file_error ("Making symbolic link", Flist (2, &filename)); | |
2206 | #endif | |
2207 | } | |
2208 | UNGCPRO; | |
2209 | return Qnil; | |
2210 | } | |
2211 | #endif /* S_IFLNK */ | |
2212 | ||
2213 | #ifdef VMS | |
2214 | ||
2215 | DEFUN ("define-logical-name", Fdefine_logical_name, Sdefine_logical_name, | |
2216 | 2, 2, "sDefine logical name: \nsDefine logical name %s as: ", | |
2217 | "Define the job-wide logical name NAME to have the value STRING.\n\ | |
2218 | If STRING is nil or a null string, the logical name NAME is deleted.") | |
2219 | (varname, string) | |
2220 | Lisp_Object varname; | |
2221 | Lisp_Object string; | |
2222 | { | |
2223 | CHECK_STRING (varname, 0); | |
265a9e55 | 2224 | if (NILP (string)) |
570d7624 JB |
2225 | delete_logical_name (XSTRING (varname)->data); |
2226 | else | |
2227 | { | |
2228 | CHECK_STRING (string, 1); | |
2229 | ||
2230 | if (XSTRING (string)->size == 0) | |
5e570b75 | 2231 | delete_logical_name (XSTRING (varname)->data); |
570d7624 | 2232 | else |
5e570b75 | 2233 | define_logical_name (XSTRING (varname)->data, XSTRING (string)->data); |
570d7624 JB |
2234 | } |
2235 | ||
2236 | return string; | |
2237 | } | |
2238 | #endif /* VMS */ | |
2239 | ||
2240 | #ifdef HPUX_NET | |
2241 | ||
2242 | DEFUN ("sysnetunam", Fsysnetunam, Ssysnetunam, 2, 2, 0, | |
2243 | "Open a network connection to PATH using LOGIN as the login string.") | |
2244 | (path, login) | |
2245 | Lisp_Object path, login; | |
2246 | { | |
2247 | int netresult; | |
2248 | ||
2249 | CHECK_STRING (path, 0); | |
2250 | CHECK_STRING (login, 0); | |
2251 | ||
2252 | netresult = netunam (XSTRING (path)->data, XSTRING (login)->data); | |
2253 | ||
2254 | if (netresult == -1) | |
2255 | return Qnil; | |
2256 | else | |
2257 | return Qt; | |
2258 | } | |
2259 | #endif /* HPUX_NET */ | |
2260 | \f | |
2261 | DEFUN ("file-name-absolute-p", Ffile_name_absolute_p, Sfile_name_absolute_p, | |
2262 | 1, 1, 0, | |
2263 | "Return t if file FILENAME specifies an absolute path name.\n\ | |
2264 | On Unix, this is a name starting with a `/' or a `~'.") | |
2265 | (filename) | |
2266 | Lisp_Object filename; | |
2267 | { | |
2268 | unsigned char *ptr; | |
2269 | ||
2270 | CHECK_STRING (filename, 0); | |
2271 | ptr = XSTRING (filename)->data; | |
5e570b75 | 2272 | if (IS_DIRECTORY_SEP (*ptr) || *ptr == '~' |
570d7624 JB |
2273 | #ifdef VMS |
2274 | /* ??? This criterion is probably wrong for '<'. */ | |
2275 | || index (ptr, ':') || index (ptr, '<') | |
2276 | || (*ptr == '[' && (ptr[1] != '-' || (ptr[2] != '.' && ptr[2] != ']')) | |
2277 | && ptr[1] != '.') | |
2278 | #endif /* VMS */ | |
5e570b75 | 2279 | #ifdef DOS_NT |
a5a1cc06 | 2280 | || (*ptr != 0 && ptr[1] == ':' && (ptr[2] == '/' || ptr[2] == '\\')) |
4c3c22f3 | 2281 | #endif |
570d7624 JB |
2282 | ) |
2283 | return Qt; | |
2284 | else | |
2285 | return Qnil; | |
2286 | } | |
3beeedfe RS |
2287 | \f |
2288 | /* Return nonzero if file FILENAME exists and can be executed. */ | |
2289 | ||
2290 | static int | |
2291 | check_executable (filename) | |
2292 | char *filename; | |
2293 | { | |
fcd2fe41 | 2294 | #ifdef HAVE_EACCESS |
b2728f4b | 2295 | return (eaccess (filename, 1) >= 0); |
3beeedfe RS |
2296 | #else |
2297 | /* Access isn't quite right because it uses the real uid | |
2298 | and we really want to test with the effective uid. | |
2299 | But Unix doesn't give us a right way to do it. */ | |
2300 | return (access (filename, 1) >= 0); | |
2301 | #endif | |
2302 | } | |
2303 | ||
2304 | /* Return nonzero if file FILENAME exists and can be written. */ | |
2305 | ||
2306 | static int | |
2307 | check_writable (filename) | |
2308 | char *filename; | |
2309 | { | |
fcd2fe41 | 2310 | #ifdef HAVE_EACCESS |
b2728f4b | 2311 | return (eaccess (filename, 2) >= 0); |
3beeedfe RS |
2312 | #else |
2313 | /* Access isn't quite right because it uses the real uid | |
2314 | and we really want to test with the effective uid. | |
2315 | But Unix doesn't give us a right way to do it. | |
2316 | Opening with O_WRONLY could work for an ordinary file, | |
2317 | but would lose for directories. */ | |
2318 | return (access (filename, 2) >= 0); | |
2319 | #endif | |
2320 | } | |
570d7624 JB |
2321 | |
2322 | DEFUN ("file-exists-p", Ffile_exists_p, Sfile_exists_p, 1, 1, 0, | |
2323 | "Return t if file FILENAME exists. (This does not mean you can read it.)\n\ | |
2324 | See also `file-readable-p' and `file-attributes'.") | |
2325 | (filename) | |
2326 | Lisp_Object filename; | |
2327 | { | |
2328 | Lisp_Object abspath; | |
32f4334d | 2329 | Lisp_Object handler; |
4018b5ef | 2330 | struct stat statbuf; |
570d7624 JB |
2331 | |
2332 | CHECK_STRING (filename, 0); | |
2333 | abspath = Fexpand_file_name (filename, Qnil); | |
32f4334d RS |
2334 | |
2335 | /* If the file name has special constructs in it, | |
2336 | call the corresponding file handler. */ | |
49307295 | 2337 | handler = Ffind_file_name_handler (abspath, Qfile_exists_p); |
32f4334d | 2338 | if (!NILP (handler)) |
09121adc | 2339 | return call2 (handler, Qfile_exists_p, abspath); |
32f4334d | 2340 | |
4018b5ef | 2341 | return (stat (XSTRING (abspath)->data, &statbuf) >= 0) ? Qt : Qnil; |
570d7624 JB |
2342 | } |
2343 | ||
2344 | DEFUN ("file-executable-p", Ffile_executable_p, Sfile_executable_p, 1, 1, 0, | |
2345 | "Return t if FILENAME can be executed by you.\n\ | |
8b235fde | 2346 | For a directory, this means you can access files in that directory.") |
570d7624 JB |
2347 | (filename) |
2348 | Lisp_Object filename; | |
2349 | ||
2350 | { | |
2351 | Lisp_Object abspath; | |
32f4334d | 2352 | Lisp_Object handler; |
570d7624 JB |
2353 | |
2354 | CHECK_STRING (filename, 0); | |
2355 | abspath = Fexpand_file_name (filename, Qnil); | |
32f4334d RS |
2356 | |
2357 | /* If the file name has special constructs in it, | |
2358 | call the corresponding file handler. */ | |
49307295 | 2359 | handler = Ffind_file_name_handler (abspath, Qfile_executable_p); |
32f4334d | 2360 | if (!NILP (handler)) |
09121adc | 2361 | return call2 (handler, Qfile_executable_p, abspath); |
32f4334d | 2362 | |
3beeedfe | 2363 | return (check_executable (XSTRING (abspath)->data) ? Qt : Qnil); |
570d7624 JB |
2364 | } |
2365 | ||
2366 | DEFUN ("file-readable-p", Ffile_readable_p, Sfile_readable_p, 1, 1, 0, | |
2367 | "Return t if file FILENAME exists and you can read it.\n\ | |
2368 | See also `file-exists-p' and `file-attributes'.") | |
2369 | (filename) | |
2370 | Lisp_Object filename; | |
2371 | { | |
2372 | Lisp_Object abspath; | |
32f4334d | 2373 | Lisp_Object handler; |
4018b5ef | 2374 | int desc; |
570d7624 JB |
2375 | |
2376 | CHECK_STRING (filename, 0); | |
2377 | abspath = Fexpand_file_name (filename, Qnil); | |
32f4334d RS |
2378 | |
2379 | /* If the file name has special constructs in it, | |
2380 | call the corresponding file handler. */ | |
49307295 | 2381 | handler = Ffind_file_name_handler (abspath, Qfile_readable_p); |
32f4334d | 2382 | if (!NILP (handler)) |
09121adc | 2383 | return call2 (handler, Qfile_readable_p, abspath); |
32f4334d | 2384 | |
4018b5ef RS |
2385 | desc = open (XSTRING (abspath)->data, O_RDONLY); |
2386 | if (desc < 0) | |
2387 | return Qnil; | |
2388 | close (desc); | |
2389 | return Qt; | |
570d7624 JB |
2390 | } |
2391 | ||
f793dc6c RS |
2392 | /* Having this before file-symlink-p mysteriously caused it to be forgotten |
2393 | on the RT/PC. */ | |
2394 | DEFUN ("file-writable-p", Ffile_writable_p, Sfile_writable_p, 1, 1, 0, | |
2395 | "Return t if file FILENAME can be written or created by you.") | |
2396 | (filename) | |
2397 | Lisp_Object filename; | |
2398 | { | |
2399 | Lisp_Object abspath, dir; | |
2400 | Lisp_Object handler; | |
2401 | struct stat statbuf; | |
2402 | ||
2403 | CHECK_STRING (filename, 0); | |
2404 | abspath = Fexpand_file_name (filename, Qnil); | |
2405 | ||
2406 | /* If the file name has special constructs in it, | |
2407 | call the corresponding file handler. */ | |
2408 | handler = Ffind_file_name_handler (abspath, Qfile_writable_p); | |
2409 | if (!NILP (handler)) | |
2410 | return call2 (handler, Qfile_writable_p, abspath); | |
2411 | ||
2412 | if (stat (XSTRING (abspath)->data, &statbuf) >= 0) | |
2413 | return (check_writable (XSTRING (abspath)->data) | |
2414 | ? Qt : Qnil); | |
2415 | dir = Ffile_name_directory (abspath); | |
2416 | #ifdef VMS | |
2417 | if (!NILP (dir)) | |
2418 | dir = Fdirectory_file_name (dir); | |
2419 | #endif /* VMS */ | |
2420 | #ifdef MSDOS | |
2421 | if (!NILP (dir)) | |
2422 | dir = Fdirectory_file_name (dir); | |
2423 | #endif /* MSDOS */ | |
2424 | return (check_writable (!NILP (dir) ? (char *) XSTRING (dir)->data : "") | |
2425 | ? Qt : Qnil); | |
2426 | } | |
2427 | \f | |
570d7624 | 2428 | DEFUN ("file-symlink-p", Ffile_symlink_p, Sfile_symlink_p, 1, 1, 0, |
89de89c7 RS |
2429 | "Return non-nil if file FILENAME is the name of a symbolic link.\n\ |
2430 | The value is the name of the file to which it is linked.\n\ | |
2431 | Otherwise returns nil.") | |
570d7624 JB |
2432 | (filename) |
2433 | Lisp_Object filename; | |
2434 | { | |
2435 | #ifdef S_IFLNK | |
2436 | char *buf; | |
2437 | int bufsize; | |
2438 | int valsize; | |
2439 | Lisp_Object val; | |
32f4334d | 2440 | Lisp_Object handler; |
570d7624 JB |
2441 | |
2442 | CHECK_STRING (filename, 0); | |
2443 | filename = Fexpand_file_name (filename, Qnil); | |
2444 | ||
32f4334d RS |
2445 | /* If the file name has special constructs in it, |
2446 | call the corresponding file handler. */ | |
49307295 | 2447 | handler = Ffind_file_name_handler (filename, Qfile_symlink_p); |
32f4334d RS |
2448 | if (!NILP (handler)) |
2449 | return call2 (handler, Qfile_symlink_p, filename); | |
2450 | ||
570d7624 JB |
2451 | bufsize = 100; |
2452 | while (1) | |
2453 | { | |
2454 | buf = (char *) xmalloc (bufsize); | |
2455 | bzero (buf, bufsize); | |
2456 | valsize = readlink (XSTRING (filename)->data, buf, bufsize); | |
2457 | if (valsize < bufsize) break; | |
2458 | /* Buffer was not long enough */ | |
9ac0d9e0 | 2459 | xfree (buf); |
570d7624 JB |
2460 | bufsize *= 2; |
2461 | } | |
2462 | if (valsize == -1) | |
2463 | { | |
9ac0d9e0 | 2464 | xfree (buf); |
570d7624 JB |
2465 | return Qnil; |
2466 | } | |
2467 | val = make_string (buf, valsize); | |
9ac0d9e0 | 2468 | xfree (buf); |
570d7624 JB |
2469 | return val; |
2470 | #else /* not S_IFLNK */ | |
2471 | return Qnil; | |
2472 | #endif /* not S_IFLNK */ | |
2473 | } | |
2474 | ||
570d7624 JB |
2475 | DEFUN ("file-directory-p", Ffile_directory_p, Sfile_directory_p, 1, 1, 0, |
2476 | "Return t if file FILENAME is the name of a directory as a file.\n\ | |
2477 | A directory name spec may be given instead; then the value is t\n\ | |
2478 | if the directory so specified exists and really is a directory.") | |
2479 | (filename) | |
2480 | Lisp_Object filename; | |
2481 | { | |
2482 | register Lisp_Object abspath; | |
2483 | struct stat st; | |
32f4334d | 2484 | Lisp_Object handler; |
570d7624 JB |
2485 | |
2486 | abspath = expand_and_dir_to_file (filename, current_buffer->directory); | |
2487 | ||
32f4334d RS |
2488 | /* If the file name has special constructs in it, |
2489 | call the corresponding file handler. */ | |
49307295 | 2490 | handler = Ffind_file_name_handler (abspath, Qfile_directory_p); |
32f4334d | 2491 | if (!NILP (handler)) |
09121adc | 2492 | return call2 (handler, Qfile_directory_p, abspath); |
32f4334d | 2493 | |
570d7624 JB |
2494 | if (stat (XSTRING (abspath)->data, &st) < 0) |
2495 | return Qnil; | |
2496 | return (st.st_mode & S_IFMT) == S_IFDIR ? Qt : Qnil; | |
2497 | } | |
2498 | ||
b72dea2a JB |
2499 | DEFUN ("file-accessible-directory-p", Ffile_accessible_directory_p, Sfile_accessible_directory_p, 1, 1, 0, |
2500 | "Return t if file FILENAME is the name of a directory as a file,\n\ | |
2501 | and files in that directory can be opened by you. In order to use a\n\ | |
2502 | directory as a buffer's current directory, this predicate must return true.\n\ | |
2503 | A directory name spec may be given instead; then the value is t\n\ | |
2504 | if the directory so specified exists and really is a readable and\n\ | |
2505 | searchable directory.") | |
2506 | (filename) | |
2507 | Lisp_Object filename; | |
2508 | { | |
32f4334d | 2509 | Lisp_Object handler; |
1a04498e | 2510 | int tem; |
d26859eb | 2511 | struct gcpro gcpro1; |
32f4334d RS |
2512 | |
2513 | /* If the file name has special constructs in it, | |
2514 | call the corresponding file handler. */ | |
49307295 | 2515 | handler = Ffind_file_name_handler (filename, Qfile_accessible_directory_p); |
32f4334d RS |
2516 | if (!NILP (handler)) |
2517 | return call2 (handler, Qfile_accessible_directory_p, filename); | |
2518 | ||
d26859eb KH |
2519 | /* It's an unlikely combination, but yes we really do need to gcpro: |
2520 | Suppose that file-accessible-directory-p has no handler, but | |
2521 | file-directory-p does have a handler; this handler causes a GC which | |
2522 | relocates the string in `filename'; and finally file-directory-p | |
2523 | returns non-nil. Then we would end up passing a garbaged string | |
2524 | to file-executable-p. */ | |
2525 | GCPRO1 (filename); | |
1a04498e KH |
2526 | tem = (NILP (Ffile_directory_p (filename)) |
2527 | || NILP (Ffile_executable_p (filename))); | |
d26859eb | 2528 | UNGCPRO; |
1a04498e | 2529 | return tem ? Qnil : Qt; |
b72dea2a JB |
2530 | } |
2531 | ||
f793dc6c RS |
2532 | DEFUN ("file-regular-p", Ffile_regular_p, Sfile_regular_p, 1, 1, 0, |
2533 | "Return t if file FILENAME is the name of a regular file.\n\ | |
2534 | This is the sort of file that holds an ordinary stream of data bytes.") | |
2535 | (filename) | |
2536 | Lisp_Object filename; | |
2537 | { | |
2538 | register Lisp_Object abspath; | |
2539 | struct stat st; | |
2540 | Lisp_Object handler; | |
2541 | ||
2542 | abspath = expand_and_dir_to_file (filename, current_buffer->directory); | |
2543 | ||
2544 | /* If the file name has special constructs in it, | |
2545 | call the corresponding file handler. */ | |
2546 | handler = Ffind_file_name_handler (abspath, Qfile_directory_p); | |
2547 | if (!NILP (handler)) | |
2548 | return call2 (handler, Qfile_directory_p, abspath); | |
2549 | ||
2550 | if (stat (XSTRING (abspath)->data, &st) < 0) | |
2551 | return Qnil; | |
2552 | return (st.st_mode & S_IFMT) == S_IFREG ? Qt : Qnil; | |
2553 | } | |
2554 | \f | |
570d7624 JB |
2555 | DEFUN ("file-modes", Ffile_modes, Sfile_modes, 1, 1, 0, |
2556 | "Return mode bits of FILE, as an integer.") | |
2557 | (filename) | |
2558 | Lisp_Object filename; | |
2559 | { | |
2560 | Lisp_Object abspath; | |
2561 | struct stat st; | |
32f4334d | 2562 | Lisp_Object handler; |
570d7624 JB |
2563 | |
2564 | abspath = expand_and_dir_to_file (filename, current_buffer->directory); | |
2565 | ||
32f4334d RS |
2566 | /* If the file name has special constructs in it, |
2567 | call the corresponding file handler. */ | |
49307295 | 2568 | handler = Ffind_file_name_handler (abspath, Qfile_modes); |
32f4334d | 2569 | if (!NILP (handler)) |
09121adc | 2570 | return call2 (handler, Qfile_modes, abspath); |
32f4334d | 2571 | |
570d7624 JB |
2572 | if (stat (XSTRING (abspath)->data, &st) < 0) |
2573 | return Qnil; | |
5e570b75 | 2574 | #ifdef DOS_NT |
3ace87e3 KH |
2575 | { |
2576 | int len; | |
2577 | char *suffix; | |
2578 | if (S_ISREG (st.st_mode) | |
2579 | && (len = XSTRING (abspath)->size) >= 5 | |
2580 | && (stricmp ((suffix = XSTRING (abspath)->data + len-4), ".com") == 0 | |
2581 | || stricmp (suffix, ".exe") == 0 | |
2582 | || stricmp (suffix, ".bat") == 0)) | |
2583 | st.st_mode |= S_IEXEC; | |
2584 | } | |
5e570b75 | 2585 | #endif /* DOS_NT */ |
3ace87e3 | 2586 | |
570d7624 JB |
2587 | return make_number (st.st_mode & 07777); |
2588 | } | |
2589 | ||
2590 | DEFUN ("set-file-modes", Fset_file_modes, Sset_file_modes, 2, 2, 0, | |
2591 | "Set mode bits of FILE to MODE (an integer).\n\ | |
2592 | Only the 12 low bits of MODE are used.") | |
2593 | (filename, mode) | |
2594 | Lisp_Object filename, mode; | |
2595 | { | |
2596 | Lisp_Object abspath; | |
32f4334d | 2597 | Lisp_Object handler; |
570d7624 JB |
2598 | |
2599 | abspath = Fexpand_file_name (filename, current_buffer->directory); | |
2600 | CHECK_NUMBER (mode, 1); | |
2601 | ||
32f4334d RS |
2602 | /* If the file name has special constructs in it, |
2603 | call the corresponding file handler. */ | |
49307295 | 2604 | handler = Ffind_file_name_handler (abspath, Qset_file_modes); |
32f4334d | 2605 | if (!NILP (handler)) |
09121adc | 2606 | return call3 (handler, Qset_file_modes, abspath, mode); |
32f4334d | 2607 | |
570d7624 JB |
2608 | #ifndef APOLLO |
2609 | if (chmod (XSTRING (abspath)->data, XINT (mode)) < 0) | |
2610 | report_file_error ("Doing chmod", Fcons (abspath, Qnil)); | |
2611 | #else /* APOLLO */ | |
2612 | if (!egetenv ("USE_DOMAIN_ACLS")) | |
2613 | { | |
2614 | struct stat st; | |
2615 | struct timeval tvp[2]; | |
2616 | ||
2617 | /* chmod on apollo also change the file's modtime; need to save the | |
2618 | modtime and then restore it. */ | |
2619 | if (stat (XSTRING (abspath)->data, &st) < 0) | |
2620 | { | |
2621 | report_file_error ("Doing chmod", Fcons (abspath, Qnil)); | |
2622 | return (Qnil); | |
2623 | } | |
2624 | ||
2625 | if (chmod (XSTRING (abspath)->data, XINT (mode)) < 0) | |
5e570b75 | 2626 | report_file_error ("Doing chmod", Fcons (abspath, Qnil)); |
570d7624 JB |
2627 | |
2628 | /* reset the old accessed and modified times. */ | |
2629 | tvp[0].tv_sec = st.st_atime + 1; /* +1 due to an Apollo roundoff bug */ | |
2630 | tvp[0].tv_usec = 0; | |
2631 | tvp[1].tv_sec = st.st_mtime + 1; /* +1 due to an Apollo roundoff bug */ | |
2632 | tvp[1].tv_usec = 0; | |
2633 | ||
2634 | if (utimes (XSTRING (abspath)->data, tvp) < 0) | |
5e570b75 | 2635 | report_file_error ("Doing utimes", Fcons (abspath, Qnil)); |
570d7624 JB |
2636 | } |
2637 | #endif /* APOLLO */ | |
2638 | ||
2639 | return Qnil; | |
2640 | } | |
2641 | ||
c24e9a53 | 2642 | DEFUN ("set-default-file-modes", Fset_default_file_modes, Sset_default_file_modes, 1, 1, 0, |
5f85ea58 RS |
2643 | "Set the file permission bits for newly created files.\n\ |
2644 | The argument MODE should be an integer; only the low 9 bits are used.\n\ | |
36a8c287 | 2645 | This setting is inherited by subprocesses.") |
5f85ea58 RS |
2646 | (mode) |
2647 | Lisp_Object mode; | |
36a8c287 | 2648 | { |
5f85ea58 | 2649 | CHECK_NUMBER (mode, 0); |
36a8c287 | 2650 | |
5f85ea58 | 2651 | umask ((~ XINT (mode)) & 0777); |
36a8c287 JB |
2652 | |
2653 | return Qnil; | |
2654 | } | |
2655 | ||
c24e9a53 | 2656 | DEFUN ("default-file-modes", Fdefault_file_modes, Sdefault_file_modes, 0, 0, 0, |
5f85ea58 RS |
2657 | "Return the default file protection for created files.\n\ |
2658 | The value is an integer.") | |
36a8c287 JB |
2659 | () |
2660 | { | |
5f85ea58 RS |
2661 | int realmask; |
2662 | Lisp_Object value; | |
36a8c287 | 2663 | |
5f85ea58 RS |
2664 | realmask = umask (0); |
2665 | umask (realmask); | |
36a8c287 | 2666 | |
46283abe | 2667 | XSETINT (value, (~ realmask) & 0777); |
5f85ea58 | 2668 | return value; |
36a8c287 | 2669 | } |
f793dc6c | 2670 | \f |
85ffea93 RS |
2671 | #ifdef unix |
2672 | ||
2673 | DEFUN ("unix-sync", Funix_sync, Sunix_sync, 0, 0, "", | |
2674 | "Tell Unix to finish all pending disk updates.") | |
2675 | () | |
2676 | { | |
2677 | sync (); | |
2678 | return Qnil; | |
2679 | } | |
2680 | ||
2681 | #endif /* unix */ | |
2682 | ||
570d7624 JB |
2683 | DEFUN ("file-newer-than-file-p", Ffile_newer_than_file_p, Sfile_newer_than_file_p, 2, 2, 0, |
2684 | "Return t if file FILE1 is newer than file FILE2.\n\ | |
2685 | If FILE1 does not exist, the answer is nil;\n\ | |
2686 | otherwise, if FILE2 does not exist, the answer is t.") | |
2687 | (file1, file2) | |
2688 | Lisp_Object file1, file2; | |
2689 | { | |
32f4334d | 2690 | Lisp_Object abspath1, abspath2; |
570d7624 JB |
2691 | struct stat st; |
2692 | int mtime1; | |
32f4334d | 2693 | Lisp_Object handler; |
09121adc | 2694 | struct gcpro gcpro1, gcpro2; |
570d7624 JB |
2695 | |
2696 | CHECK_STRING (file1, 0); | |
2697 | CHECK_STRING (file2, 0); | |
2698 | ||
09121adc RS |
2699 | abspath1 = Qnil; |
2700 | GCPRO2 (abspath1, file2); | |
32f4334d RS |
2701 | abspath1 = expand_and_dir_to_file (file1, current_buffer->directory); |
2702 | abspath2 = expand_and_dir_to_file (file2, current_buffer->directory); | |
09121adc | 2703 | UNGCPRO; |
570d7624 | 2704 | |
32f4334d RS |
2705 | /* If the file name has special constructs in it, |
2706 | call the corresponding file handler. */ | |
49307295 | 2707 | handler = Ffind_file_name_handler (abspath1, Qfile_newer_than_file_p); |
51cf6d37 | 2708 | if (NILP (handler)) |
49307295 | 2709 | handler = Ffind_file_name_handler (abspath2, Qfile_newer_than_file_p); |
32f4334d RS |
2710 | if (!NILP (handler)) |
2711 | return call3 (handler, Qfile_newer_than_file_p, abspath1, abspath2); | |
2712 | ||
2713 | if (stat (XSTRING (abspath1)->data, &st) < 0) | |
570d7624 JB |
2714 | return Qnil; |
2715 | ||
2716 | mtime1 = st.st_mtime; | |
2717 | ||
32f4334d | 2718 | if (stat (XSTRING (abspath2)->data, &st) < 0) |
570d7624 JB |
2719 | return Qt; |
2720 | ||
2721 | return (mtime1 > st.st_mtime) ? Qt : Qnil; | |
2722 | } | |
2723 | \f | |
5e570b75 | 2724 | #ifdef DOS_NT |
4c3c22f3 | 2725 | Lisp_Object Qfind_buffer_file_type; |
5e570b75 | 2726 | #endif /* DOS_NT */ |
4c3c22f3 | 2727 | |
570d7624 | 2728 | DEFUN ("insert-file-contents", Finsert_file_contents, Sinsert_file_contents, |
3d0387c0 | 2729 | 1, 5, 0, |
570d7624 | 2730 | "Insert contents of file FILENAME after point.\n\ |
7fded690 | 2731 | Returns list of absolute file name and length of data inserted.\n\ |
570d7624 JB |
2732 | If second argument VISIT is non-nil, the buffer's visited filename\n\ |
2733 | and last save file modtime are set, and it is marked unmodified.\n\ | |
2734 | If visiting and the file does not exist, visiting is completed\n\ | |
7fded690 JB |
2735 | before the error is signaled.\n\n\ |
2736 | The optional third and fourth arguments BEG and END\n\ | |
2737 | specify what portion of the file to insert.\n\ | |
3d0387c0 RS |
2738 | If VISIT is non-nil, BEG and END must be nil.\n\ |
2739 | If optional fifth argument REPLACE is non-nil,\n\ | |
2740 | it means replace the current buffer contents (in the accessible portion)\n\ | |
2741 | with the file contents. This is better than simply deleting and inserting\n\ | |
2742 | the whole thing because (1) it preserves some marker positions\n\ | |
2743 | and (2) it puts less data in the undo list.") | |
2744 | (filename, visit, beg, end, replace) | |
2745 | Lisp_Object filename, visit, beg, end, replace; | |
570d7624 JB |
2746 | { |
2747 | struct stat st; | |
2748 | register int fd; | |
2749 | register int inserted = 0; | |
2750 | register int how_much; | |
2751 | int count = specpdl_ptr - specpdl; | |
1a04498e | 2752 | struct gcpro gcpro1, gcpro2, gcpro3; |
d6a3cc15 RS |
2753 | Lisp_Object handler, val, insval; |
2754 | Lisp_Object p; | |
7fded690 | 2755 | int total; |
53c34c46 | 2756 | int not_regular = 0; |
32f4334d | 2757 | |
95385625 RS |
2758 | if (current_buffer->base_buffer && ! NILP (visit)) |
2759 | error ("Cannot do file visiting in an indirect buffer"); | |
2760 | ||
2761 | if (!NILP (current_buffer->read_only)) | |
2762 | Fbarf_if_buffer_read_only (); | |
2763 | ||
32f4334d | 2764 | val = Qnil; |
d6a3cc15 | 2765 | p = Qnil; |
32f4334d | 2766 | |
1a04498e | 2767 | GCPRO3 (filename, val, p); |
570d7624 JB |
2768 | |
2769 | CHECK_STRING (filename, 0); | |
2770 | filename = Fexpand_file_name (filename, Qnil); | |
2771 | ||
32f4334d RS |
2772 | /* If the file name has special constructs in it, |
2773 | call the corresponding file handler. */ | |
49307295 | 2774 | handler = Ffind_file_name_handler (filename, Qinsert_file_contents); |
32f4334d RS |
2775 | if (!NILP (handler)) |
2776 | { | |
3d0387c0 RS |
2777 | val = call6 (handler, Qinsert_file_contents, filename, |
2778 | visit, beg, end, replace); | |
32f4334d RS |
2779 | goto handled; |
2780 | } | |
2781 | ||
570d7624 JB |
2782 | fd = -1; |
2783 | ||
2784 | #ifndef APOLLO | |
99bc28f4 | 2785 | if (stat (XSTRING (filename)->data, &st) < 0) |
570d7624 | 2786 | #else |
4018b5ef | 2787 | if ((fd = open (XSTRING (filename)->data, O_RDONLY)) < 0 |
570d7624 JB |
2788 | || fstat (fd, &st) < 0) |
2789 | #endif /* not APOLLO */ | |
2790 | { | |
2791 | if (fd >= 0) close (fd); | |
99bc28f4 | 2792 | badopen: |
265a9e55 | 2793 | if (NILP (visit)) |
570d7624 JB |
2794 | report_file_error ("Opening input file", Fcons (filename, Qnil)); |
2795 | st.st_mtime = -1; | |
2796 | how_much = 0; | |
2797 | goto notfound; | |
2798 | } | |
2799 | ||
99bc28f4 | 2800 | #ifdef S_IFREG |
be53b411 JB |
2801 | /* This code will need to be changed in order to work on named |
2802 | pipes, and it's probably just not worth it. So we should at | |
2803 | least signal an error. */ | |
99bc28f4 | 2804 | if (!S_ISREG (st.st_mode)) |
330bfe57 RS |
2805 | { |
2806 | if (NILP (visit)) | |
2807 | Fsignal (Qfile_error, | |
2808 | Fcons (build_string ("not a regular file"), | |
2809 | Fcons (filename, Qnil))); | |
2810 | ||
2811 | not_regular = 1; | |
2812 | goto notfound; | |
2813 | } | |
be53b411 JB |
2814 | #endif |
2815 | ||
99bc28f4 | 2816 | if (fd < 0) |
4018b5ef | 2817 | if ((fd = open (XSTRING (filename)->data, O_RDONLY)) < 0) |
99bc28f4 KH |
2818 | goto badopen; |
2819 | ||
2820 | /* Replacement should preserve point as it preserves markers. */ | |
2821 | if (!NILP (replace)) | |
2822 | record_unwind_protect (restore_point_unwind, Fpoint_marker ()); | |
2823 | ||
2824 | record_unwind_protect (close_file_unwind, make_number (fd)); | |
2825 | ||
570d7624 JB |
2826 | /* Supposedly happens on VMS. */ |
2827 | if (st.st_size < 0) | |
2828 | error ("File size is negative"); | |
be53b411 | 2829 | |
7fded690 JB |
2830 | if (!NILP (beg) || !NILP (end)) |
2831 | if (!NILP (visit)) | |
2832 | error ("Attempt to visit less than an entire file"); | |
2833 | ||
2834 | if (!NILP (beg)) | |
2835 | CHECK_NUMBER (beg, 0); | |
2836 | else | |
2acfd7ae | 2837 | XSETFASTINT (beg, 0); |
7fded690 JB |
2838 | |
2839 | if (!NILP (end)) | |
2840 | CHECK_NUMBER (end, 0); | |
2841 | else | |
2842 | { | |
2843 | XSETINT (end, st.st_size); | |
2844 | if (XINT (end) != st.st_size) | |
2845 | error ("maximum buffer size exceeded"); | |
2846 | } | |
2847 | ||
3d0387c0 RS |
2848 | /* If requested, replace the accessible part of the buffer |
2849 | with the file contents. Avoid replacing text at the | |
2850 | beginning or end of the buffer that matches the file contents; | |
2851 | that preserves markers pointing to the unchanged parts. */ | |
5e570b75 | 2852 | #ifdef DOS_NT |
e54d3b5d RS |
2853 | /* On MSDOS, replace mode doesn't really work, except for binary files, |
2854 | and it's not worth supporting just for them. */ | |
2855 | if (!NILP (replace)) | |
2856 | { | |
2857 | replace = Qnil; | |
2acfd7ae KH |
2858 | XSETFASTINT (beg, 0); |
2859 | XSETFASTINT (end, st.st_size); | |
e54d3b5d RS |
2860 | del_range_1 (BEGV, ZV, 0); |
2861 | } | |
5e570b75 | 2862 | #else /* not DOS_NT */ |
3d0387c0 RS |
2863 | if (!NILP (replace)) |
2864 | { | |
268466ed | 2865 | unsigned char buffer[1 << 14]; |
3d0387c0 RS |
2866 | int same_at_start = BEGV; |
2867 | int same_at_end = ZV; | |
9c28748f RS |
2868 | int overlap; |
2869 | ||
3d0387c0 RS |
2870 | immediate_quit = 1; |
2871 | QUIT; | |
2872 | /* Count how many chars at the start of the file | |
2873 | match the text at the beginning of the buffer. */ | |
2874 | while (1) | |
2875 | { | |
2876 | int nread, bufpos; | |
2877 | ||
2878 | nread = read (fd, buffer, sizeof buffer); | |
2879 | if (nread < 0) | |
2880 | error ("IO error reading %s: %s", | |
2881 | XSTRING (filename)->data, strerror (errno)); | |
2882 | else if (nread == 0) | |
2883 | break; | |
2884 | bufpos = 0; | |
2885 | while (bufpos < nread && same_at_start < ZV | |
2886 | && FETCH_CHAR (same_at_start) == buffer[bufpos]) | |
2887 | same_at_start++, bufpos++; | |
2888 | /* If we found a discrepancy, stop the scan. | |
2889 | Otherwise loop around and scan the next bufferfull. */ | |
2890 | if (bufpos != nread) | |
2891 | break; | |
2892 | } | |
2893 | immediate_quit = 0; | |
2894 | /* If the file matches the buffer completely, | |
2895 | there's no need to replace anything. */ | |
1051b3b3 | 2896 | if (same_at_start - BEGV == st.st_size) |
3d0387c0 RS |
2897 | { |
2898 | close (fd); | |
a1d2b64a | 2899 | specpdl_ptr--; |
1051b3b3 RS |
2900 | /* Truncate the buffer to the size of the file. */ |
2901 | del_range_1 (same_at_start, same_at_end, 0); | |
3d0387c0 RS |
2902 | goto handled; |
2903 | } | |
2904 | immediate_quit = 1; | |
2905 | QUIT; | |
2906 | /* Count how many chars at the end of the file | |
2907 | match the text at the end of the buffer. */ | |
2908 | while (1) | |
2909 | { | |
2910 | int total_read, nread, bufpos, curpos, trial; | |
2911 | ||
2912 | /* At what file position are we now scanning? */ | |
2913 | curpos = st.st_size - (ZV - same_at_end); | |
fc81fa9e KH |
2914 | /* If the entire file matches the buffer tail, stop the scan. */ |
2915 | if (curpos == 0) | |
2916 | break; | |
3d0387c0 RS |
2917 | /* How much can we scan in the next step? */ |
2918 | trial = min (curpos, sizeof buffer); | |
2919 | if (lseek (fd, curpos - trial, 0) < 0) | |
2920 | report_file_error ("Setting file position", | |
2921 | Fcons (filename, Qnil)); | |
2922 | ||
2923 | total_read = 0; | |
2924 | while (total_read < trial) | |
2925 | { | |
2926 | nread = read (fd, buffer + total_read, trial - total_read); | |
2927 | if (nread <= 0) | |
2928 | error ("IO error reading %s: %s", | |
2929 | XSTRING (filename)->data, strerror (errno)); | |
2930 | total_read += nread; | |
2931 | } | |
2932 | /* Scan this bufferfull from the end, comparing with | |
2933 | the Emacs buffer. */ | |
2934 | bufpos = total_read; | |
2935 | /* Compare with same_at_start to avoid counting some buffer text | |
2936 | as matching both at the file's beginning and at the end. */ | |
2937 | while (bufpos > 0 && same_at_end > same_at_start | |
2938 | && FETCH_CHAR (same_at_end - 1) == buffer[bufpos - 1]) | |
2939 | same_at_end--, bufpos--; | |
2940 | /* If we found a discrepancy, stop the scan. | |
2941 | Otherwise loop around and scan the preceding bufferfull. */ | |
2942 | if (bufpos != 0) | |
2943 | break; | |
2944 | } | |
2945 | immediate_quit = 0; | |
9c28748f RS |
2946 | |
2947 | /* Don't try to reuse the same piece of text twice. */ | |
2948 | overlap = same_at_start - BEGV - (same_at_end + st.st_size - ZV); | |
2949 | if (overlap > 0) | |
2950 | same_at_end += overlap; | |
2951 | ||
3d0387c0 | 2952 | /* Arrange to read only the nonmatching middle part of the file. */ |
2acfd7ae KH |
2953 | XSETFASTINT (beg, same_at_start - BEGV); |
2954 | XSETFASTINT (end, st.st_size - (ZV - same_at_end)); | |
9c28748f | 2955 | |
251f623e | 2956 | del_range_1 (same_at_start, same_at_end, 0); |
a1d2b64a RS |
2957 | /* Insert from the file at the proper position. */ |
2958 | SET_PT (same_at_start); | |
3d0387c0 | 2959 | } |
5e570b75 | 2960 | #endif /* not DOS_NT */ |
3d0387c0 | 2961 | |
7fded690 JB |
2962 | total = XINT (end) - XINT (beg); |
2963 | ||
570d7624 JB |
2964 | { |
2965 | register Lisp_Object temp; | |
2966 | ||
2967 | /* Make sure point-max won't overflow after this insertion. */ | |
46283abe | 2968 | XSETINT (temp, total); |
7fded690 | 2969 | if (total != XINT (temp)) |
570d7624 JB |
2970 | error ("maximum buffer size exceeded"); |
2971 | } | |
2972 | ||
57d8d468 | 2973 | if (NILP (visit) && total > 0) |
570d7624 JB |
2974 | prepare_to_modify_buffer (point, point); |
2975 | ||
2976 | move_gap (point); | |
7fded690 JB |
2977 | if (GAP_SIZE < total) |
2978 | make_gap (total - GAP_SIZE); | |
2979 | ||
a1d2b64a | 2980 | if (XINT (beg) != 0 || !NILP (replace)) |
7fded690 JB |
2981 | { |
2982 | if (lseek (fd, XINT (beg), 0) < 0) | |
2983 | report_file_error ("Setting file position", Fcons (filename, Qnil)); | |
2984 | } | |
2985 | ||
a1d2b64a RS |
2986 | how_much = 0; |
2987 | while (inserted < total) | |
570d7624 | 2988 | { |
5e570b75 RS |
2989 | /* try is reserved in some compilers (Microsoft C) */ |
2990 | int trytry = min (total - inserted, 64 << 10); | |
b5148e85 RS |
2991 | int this; |
2992 | ||
2993 | /* Allow quitting out of the actual I/O. */ | |
2994 | immediate_quit = 1; | |
2995 | QUIT; | |
5e570b75 | 2996 | this = read (fd, &FETCH_CHAR (point + inserted - 1) + 1, trytry); |
b5148e85 | 2997 | immediate_quit = 0; |
570d7624 JB |
2998 | |
2999 | if (this <= 0) | |
3000 | { | |
3001 | how_much = this; | |
3002 | break; | |
3003 | } | |
3004 | ||
3005 | GPT += this; | |
3006 | GAP_SIZE -= this; | |
3007 | ZV += this; | |
3008 | Z += this; | |
3009 | inserted += this; | |
3010 | } | |
3011 | ||
5e570b75 | 3012 | #ifdef DOS_NT |
4c3c22f3 RS |
3013 | /* Demacs 1.1.1 91/10/16 HIRANO Satoshi, MW July 1993 */ |
3014 | /* Determine file type from name and remove LFs from CR-LFs if the file | |
3015 | is deemed to be a text file. */ | |
3016 | { | |
bf162ea8 RS |
3017 | current_buffer->buffer_file_type |
3018 | = call1 (Qfind_buffer_file_type, filename); | |
bf162ea8 | 3019 | if (NILP (current_buffer->buffer_file_type)) |
4c3c22f3 | 3020 | { |
a1d2b64a RS |
3021 | int reduced_size |
3022 | = inserted - crlf_to_lf (inserted, &FETCH_CHAR (point - 1) + 1); | |
4c3c22f3 RS |
3023 | ZV -= reduced_size; |
3024 | Z -= reduced_size; | |
3025 | GPT -= reduced_size; | |
3026 | GAP_SIZE += reduced_size; | |
3027 | inserted -= reduced_size; | |
3028 | } | |
3029 | } | |
5e570b75 | 3030 | #endif /* DOS_NT */ |
4c3c22f3 | 3031 | |
570d7624 | 3032 | if (inserted > 0) |
7d8451f1 RS |
3033 | { |
3034 | record_insert (point, inserted); | |
8d4e077b JA |
3035 | |
3036 | /* Only defined if Emacs is compiled with USE_TEXT_PROPERTIES */ | |
3037 | offset_intervals (current_buffer, point, inserted); | |
7d8451f1 RS |
3038 | MODIFF++; |
3039 | } | |
570d7624 JB |
3040 | |
3041 | close (fd); | |
3042 | ||
a1d2b64a RS |
3043 | /* Discard the unwind protect for closing the file. */ |
3044 | specpdl_ptr--; | |
570d7624 JB |
3045 | |
3046 | if (how_much < 0) | |
3047 | error ("IO error reading %s: %s", | |
ce97267f | 3048 | XSTRING (filename)->data, strerror (errno)); |
570d7624 JB |
3049 | |
3050 | notfound: | |
32f4334d | 3051 | handled: |
570d7624 | 3052 | |
265a9e55 | 3053 | if (!NILP (visit)) |
570d7624 | 3054 | { |
cfadd376 RS |
3055 | if (!EQ (current_buffer->undo_list, Qt)) |
3056 | current_buffer->undo_list = Qnil; | |
570d7624 JB |
3057 | #ifdef APOLLO |
3058 | stat (XSTRING (filename)->data, &st); | |
3059 | #endif | |
62bcf009 | 3060 | |
a7e82472 RS |
3061 | if (NILP (handler)) |
3062 | { | |
3063 | current_buffer->modtime = st.st_mtime; | |
3064 | current_buffer->filename = filename; | |
3065 | } | |
62bcf009 | 3066 | |
95385625 | 3067 | SAVE_MODIFF = MODIFF; |
570d7624 | 3068 | current_buffer->auto_save_modified = MODIFF; |
2acfd7ae | 3069 | XSETFASTINT (current_buffer->save_length, Z - BEG); |
570d7624 | 3070 | #ifdef CLASH_DETECTION |
32f4334d RS |
3071 | if (NILP (handler)) |
3072 | { | |
3073 | if (!NILP (current_buffer->filename)) | |
3074 | unlock_file (current_buffer->filename); | |
3075 | unlock_file (filename); | |
3076 | } | |
570d7624 | 3077 | #endif /* CLASH_DETECTION */ |
330bfe57 RS |
3078 | if (not_regular) |
3079 | Fsignal (Qfile_error, | |
3080 | Fcons (build_string ("not a regular file"), | |
3081 | Fcons (filename, Qnil))); | |
3082 | ||
570d7624 | 3083 | /* If visiting nonexistent file, return nil. */ |
32f4334d | 3084 | if (current_buffer->modtime == -1) |
570d7624 JB |
3085 | report_file_error ("Opening input file", Fcons (filename, Qnil)); |
3086 | } | |
3087 | ||
0d420e88 BG |
3088 | /* Decode file format */ |
3089 | if (inserted > 0) | |
3090 | { | |
3091 | insval = call3 (Qformat_decode, | |
3092 | Qnil, make_number (inserted), visit); | |
3093 | CHECK_NUMBER (insval, 0); | |
3094 | inserted = XFASTINT (insval); | |
3095 | } | |
3096 | ||
62bcf009 | 3097 | if (inserted > 0 && NILP (visit) && total > 0) |
d2cad97d | 3098 | signal_after_change (point, 0, inserted); |
570d7624 | 3099 | |
d6a3cc15 RS |
3100 | if (inserted > 0) |
3101 | { | |
3102 | p = Vafter_insert_file_functions; | |
3103 | while (!NILP (p)) | |
3104 | { | |
3105 | insval = call1 (Fcar (p), make_number (inserted)); | |
3106 | if (!NILP (insval)) | |
3107 | { | |
3108 | CHECK_NUMBER (insval, 0); | |
3109 | inserted = XFASTINT (insval); | |
3110 | } | |
3111 | QUIT; | |
3112 | p = Fcdr (p); | |
3113 | } | |
3114 | } | |
3115 | ||
a1d2b64a RS |
3116 | if (NILP (val)) |
3117 | val = Fcons (filename, | |
3118 | Fcons (make_number (inserted), | |
3119 | Qnil)); | |
3120 | ||
3121 | RETURN_UNGCPRO (unbind_to (count, val)); | |
570d7624 | 3122 | } |
7fded690 | 3123 | \f |
d6a3cc15 RS |
3124 | static Lisp_Object build_annotations (); |
3125 | ||
6fc6f94b RS |
3126 | /* If build_annotations switched buffers, switch back to BUF. |
3127 | Kill the temporary buffer that was selected in the meantime. */ | |
3128 | ||
3129 | static Lisp_Object | |
3130 | build_annotations_unwind (buf) | |
3131 | Lisp_Object buf; | |
3132 | { | |
3133 | Lisp_Object tembuf; | |
3134 | ||
3135 | if (XBUFFER (buf) == current_buffer) | |
3136 | return Qnil; | |
3137 | tembuf = Fcurrent_buffer (); | |
3138 | Fset_buffer (buf); | |
3139 | Fkill_buffer (tembuf); | |
3140 | return Qnil; | |
3141 | } | |
3142 | ||
570d7624 JB |
3143 | DEFUN ("write-region", Fwrite_region, Swrite_region, 3, 5, |
3144 | "r\nFWrite region to file: ", | |
3145 | "Write current region into specified file.\n\ | |
3146 | When called from a program, takes three arguments:\n\ | |
3147 | START, END and FILENAME. START and END are buffer positions.\n\ | |
3148 | Optional fourth argument APPEND if non-nil means\n\ | |
3149 | append to existing file contents (if any).\n\ | |
3150 | Optional fifth argument VISIT if t means\n\ | |
3151 | set the last-save-file-modtime of buffer to this file's modtime\n\ | |
3152 | and mark buffer not modified.\n\ | |
3b7792ed RS |
3153 | If VISIT is a string, it is a second file name;\n\ |
3154 | the output goes to FILENAME, but the buffer is marked as visiting VISIT.\n\ | |
3155 | VISIT is also the file name to lock and unlock for clash detection.\n\ | |
1d386d28 RS |
3156 | If VISIT is neither t nor nil nor a string,\n\ |
3157 | that means do not print the \"Wrote file\" message.\n\ | |
570d7624 JB |
3158 | Kludgy feature: if START is a string, then that string is written\n\ |
3159 | to the file, instead of any buffer contents, and END is ignored.") | |
3160 | (start, end, filename, append, visit) | |
3161 | Lisp_Object start, end, filename, append, visit; | |
3162 | { | |
3163 | register int desc; | |
3164 | int failure; | |
3165 | int save_errno; | |
3166 | unsigned char *fn; | |
3167 | struct stat st; | |
c975dd7a | 3168 | int tem; |
570d7624 | 3169 | int count = specpdl_ptr - specpdl; |
6fc6f94b | 3170 | int count1; |
570d7624 | 3171 | #ifdef VMS |
5e570b75 | 3172 | unsigned char *fname = 0; /* If non-0, original filename (must rename) */ |
570d7624 | 3173 | #endif /* VMS */ |
3eac9910 | 3174 | Lisp_Object handler; |
4ad827c5 | 3175 | Lisp_Object visit_file; |
d6a3cc15 RS |
3176 | Lisp_Object annotations; |
3177 | int visiting, quietly; | |
3b7792ed | 3178 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
6fc6f94b | 3179 | struct buffer *given_buffer; |
5e570b75 | 3180 | #ifdef DOS_NT |
4c3c22f3 RS |
3181 | int buffer_file_type |
3182 | = NILP (current_buffer->buffer_file_type) ? O_TEXT : O_BINARY; | |
5e570b75 | 3183 | #endif /* DOS_NT */ |
570d7624 | 3184 | |
95385625 RS |
3185 | if (current_buffer->base_buffer && ! NILP (visit)) |
3186 | error ("Cannot do file visiting in an indirect buffer"); | |
3187 | ||
561cb8e1 | 3188 | if (!NILP (start) && !STRINGP (start)) |
570d7624 JB |
3189 | validate_region (&start, &end); |
3190 | ||
1a04498e | 3191 | GCPRO2 (filename, visit); |
570d7624 | 3192 | filename = Fexpand_file_name (filename, Qnil); |
561cb8e1 | 3193 | if (STRINGP (visit)) |
e5176bae | 3194 | visit_file = Fexpand_file_name (visit, Qnil); |
4ad827c5 RS |
3195 | else |
3196 | visit_file = filename; | |
1a04498e | 3197 | UNGCPRO; |
4ad827c5 | 3198 | |
561cb8e1 | 3199 | visiting = (EQ (visit, Qt) || STRINGP (visit)); |
d6a3cc15 RS |
3200 | quietly = !NILP (visit); |
3201 | ||
3202 | annotations = Qnil; | |
3203 | ||
3204 | GCPRO4 (start, filename, annotations, visit_file); | |
570d7624 | 3205 | |
32f4334d RS |
3206 | /* If the file name has special constructs in it, |
3207 | call the corresponding file handler. */ | |
49307295 | 3208 | handler = Ffind_file_name_handler (filename, Qwrite_region); |
b56ad927 | 3209 | /* If FILENAME has no handler, see if VISIT has one. */ |
93c30b5f | 3210 | if (NILP (handler) && STRINGP (visit)) |
49307295 | 3211 | handler = Ffind_file_name_handler (visit, Qwrite_region); |
3eac9910 | 3212 | |
32f4334d RS |
3213 | if (!NILP (handler)) |
3214 | { | |
32f4334d | 3215 | Lisp_Object val; |
51cf6d37 RS |
3216 | val = call6 (handler, Qwrite_region, start, end, |
3217 | filename, append, visit); | |
32f4334d | 3218 | |
d6a3cc15 | 3219 | if (visiting) |
32f4334d | 3220 | { |
95385625 | 3221 | SAVE_MODIFF = MODIFF; |
2acfd7ae | 3222 | XSETFASTINT (current_buffer->save_length, Z - BEG); |
3b7792ed | 3223 | current_buffer->filename = visit_file; |
32f4334d | 3224 | } |
09121adc | 3225 | UNGCPRO; |
32f4334d RS |
3226 | return val; |
3227 | } | |
3228 | ||
561cb8e1 RS |
3229 | /* Special kludge to simplify auto-saving. */ |
3230 | if (NILP (start)) | |
3231 | { | |
2acfd7ae KH |
3232 | XSETFASTINT (start, BEG); |
3233 | XSETFASTINT (end, Z); | |
561cb8e1 RS |
3234 | } |
3235 | ||
6fc6f94b RS |
3236 | record_unwind_protect (build_annotations_unwind, Fcurrent_buffer ()); |
3237 | count1 = specpdl_ptr - specpdl; | |
3238 | ||
3239 | given_buffer = current_buffer; | |
d6a3cc15 | 3240 | annotations = build_annotations (start, end); |
6fc6f94b RS |
3241 | if (current_buffer != given_buffer) |
3242 | { | |
3243 | start = BEGV; | |
3244 | end = ZV; | |
3245 | } | |
d6a3cc15 | 3246 | |
570d7624 JB |
3247 | #ifdef CLASH_DETECTION |
3248 | if (!auto_saving) | |
3b7792ed | 3249 | lock_file (visit_file); |
570d7624 JB |
3250 | #endif /* CLASH_DETECTION */ |
3251 | ||
09121adc | 3252 | fn = XSTRING (filename)->data; |
570d7624 | 3253 | desc = -1; |
265a9e55 | 3254 | if (!NILP (append)) |
5e570b75 | 3255 | #ifdef DOS_NT |
4c3c22f3 | 3256 | desc = open (fn, O_WRONLY | buffer_file_type); |
5e570b75 | 3257 | #else /* not DOS_NT */ |
570d7624 | 3258 | desc = open (fn, O_WRONLY); |
5e570b75 | 3259 | #endif /* not DOS_NT */ |
570d7624 JB |
3260 | |
3261 | if (desc < 0) | |
3262 | #ifdef VMS | |
5e570b75 | 3263 | if (auto_saving) /* Overwrite any previous version of autosave file */ |
570d7624 | 3264 | { |
5e570b75 | 3265 | vms_truncate (fn); /* if fn exists, truncate to zero length */ |
570d7624 JB |
3266 | desc = open (fn, O_RDWR); |
3267 | if (desc < 0) | |
561cb8e1 | 3268 | desc = creat_copy_attrs (STRINGP (current_buffer->filename) |
b72dea2a JB |
3269 | ? XSTRING (current_buffer->filename)->data : 0, |
3270 | fn); | |
570d7624 | 3271 | } |
5e570b75 | 3272 | else /* Write to temporary name and rename if no errors */ |
570d7624 JB |
3273 | { |
3274 | Lisp_Object temp_name; | |
3275 | temp_name = Ffile_name_directory (filename); | |
3276 | ||
265a9e55 | 3277 | if (!NILP (temp_name)) |
570d7624 JB |
3278 | { |
3279 | temp_name = Fmake_temp_name (concat2 (temp_name, | |
3280 | build_string ("$$SAVE$$"))); | |
3281 | fname = XSTRING (filename)->data; | |
3282 | fn = XSTRING (temp_name)->data; | |
3283 | desc = creat_copy_attrs (fname, fn); | |
3284 | if (desc < 0) | |
3285 | { | |
3286 | /* If we can't open the temporary file, try creating a new | |
3287 | version of the original file. VMS "creat" creates a | |
3288 | new version rather than truncating an existing file. */ | |
3289 | fn = fname; | |
3290 | fname = 0; | |
3291 | desc = creat (fn, 0666); | |
3292 | #if 0 /* This can clobber an existing file and fail to replace it, | |
3293 | if the user runs out of space. */ | |
3294 | if (desc < 0) | |
3295 | { | |
3296 | /* We can't make a new version; | |
3297 | try to truncate and rewrite existing version if any. */ | |
3298 | vms_truncate (fn); | |
3299 | desc = open (fn, O_RDWR); | |
3300 | } | |
3301 | #endif | |
3302 | } | |
3303 | } | |
3304 | else | |
3305 | desc = creat (fn, 0666); | |
3306 | } | |
3307 | #else /* not VMS */ | |
5e570b75 | 3308 | #ifdef DOS_NT |
4c3c22f3 RS |
3309 | desc = open (fn, |
3310 | O_WRONLY | O_TRUNC | O_CREAT | buffer_file_type, | |
3311 | S_IREAD | S_IWRITE); | |
5e570b75 | 3312 | #else /* not DOS_NT */ |
570d7624 | 3313 | desc = creat (fn, auto_saving ? auto_save_mode_bits : 0666); |
5e570b75 | 3314 | #endif /* not DOS_NT */ |
570d7624 JB |
3315 | #endif /* not VMS */ |
3316 | ||
09121adc RS |
3317 | UNGCPRO; |
3318 | ||
570d7624 JB |
3319 | if (desc < 0) |
3320 | { | |
3321 | #ifdef CLASH_DETECTION | |
3322 | save_errno = errno; | |
3b7792ed | 3323 | if (!auto_saving) unlock_file (visit_file); |
570d7624 JB |
3324 | errno = save_errno; |
3325 | #endif /* CLASH_DETECTION */ | |
3326 | report_file_error ("Opening output file", Fcons (filename, Qnil)); | |
3327 | } | |
3328 | ||
3329 | record_unwind_protect (close_file_unwind, make_number (desc)); | |
3330 | ||
265a9e55 | 3331 | if (!NILP (append)) |
570d7624 JB |
3332 | if (lseek (desc, 0, 2) < 0) |
3333 | { | |
3334 | #ifdef CLASH_DETECTION | |
3b7792ed | 3335 | if (!auto_saving) unlock_file (visit_file); |
570d7624 JB |
3336 | #endif /* CLASH_DETECTION */ |
3337 | report_file_error ("Lseek error", Fcons (filename, Qnil)); | |
3338 | } | |
3339 | ||
3340 | #ifdef VMS | |
3341 | /* | |
3342 | * Kludge Warning: The VMS C RTL likes to insert carriage returns | |
3343 | * if we do writes that don't end with a carriage return. Furthermore | |
3344 | * it cannot handle writes of more then 16K. The modified | |
3345 | * version of "sys_write" in SYSDEP.C (see comment there) copes with | |
3346 | * this EXCEPT for the last record (iff it doesn't end with a carriage | |
3347 | * return). This implies that if your buffer doesn't end with a carriage | |
3348 | * return, you get one free... tough. However it also means that if | |
3349 | * we make two calls to sys_write (a la the following code) you can | |
3350 | * get one at the gap as well. The easiest way to fix this (honest) | |
3351 | * is to move the gap to the next newline (or the end of the buffer). | |
3352 | * Thus this change. | |
3353 | * | |
3354 | * Yech! | |
3355 | */ | |
3356 | if (GPT > BEG && GPT_ADDR[-1] != '\n') | |
3357 | move_gap (find_next_newline (GPT, 1)); | |
3358 | #endif | |
3359 | ||
3360 | failure = 0; | |
3361 | immediate_quit = 1; | |
3362 | ||
561cb8e1 | 3363 | if (STRINGP (start)) |
570d7624 | 3364 | { |
d6a3cc15 RS |
3365 | failure = 0 > a_write (desc, XSTRING (start)->data, |
3366 | XSTRING (start)->size, 0, &annotations); | |
570d7624 JB |
3367 | save_errno = errno; |
3368 | } | |
3369 | else if (XINT (start) != XINT (end)) | |
3370 | { | |
c975dd7a | 3371 | int nwritten = 0; |
570d7624 JB |
3372 | if (XINT (start) < GPT) |
3373 | { | |
3374 | register int end1 = XINT (end); | |
3375 | tem = XINT (start); | |
d6a3cc15 | 3376 | failure = 0 > a_write (desc, &FETCH_CHAR (tem), |
c975dd7a RS |
3377 | min (GPT, end1) - tem, tem, &annotations); |
3378 | nwritten += min (GPT, end1) - tem; | |
570d7624 JB |
3379 | save_errno = errno; |
3380 | } | |
3381 | ||
3382 | if (XINT (end) > GPT && !failure) | |
3383 | { | |
3384 | tem = XINT (start); | |
3385 | tem = max (tem, GPT); | |
d6a3cc15 | 3386 | failure = 0 > a_write (desc, &FETCH_CHAR (tem), XINT (end) - tem, |
c975dd7a RS |
3387 | tem, &annotations); |
3388 | nwritten += XINT (end) - tem; | |
d6a3cc15 RS |
3389 | save_errno = errno; |
3390 | } | |
c975dd7a RS |
3391 | |
3392 | if (nwritten == 0) | |
d6a3cc15 RS |
3393 | { |
3394 | /* If file was empty, still need to write the annotations */ | |
c975dd7a | 3395 | failure = 0 > a_write (desc, "", 0, XINT (start), &annotations); |
570d7624 JB |
3396 | save_errno = errno; |
3397 | } | |
3398 | } | |
3399 | ||
3400 | immediate_quit = 0; | |
3401 | ||
6e23c83e | 3402 | #ifdef HAVE_FSYNC |
570d7624 JB |
3403 | /* Note fsync appears to change the modtime on BSD4.2 (both vax and sun). |
3404 | Disk full in NFS may be reported here. */ | |
1daffa1c RS |
3405 | /* mib says that closing the file will try to write as fast as NFS can do |
3406 | it, and that means the fsync here is not crucial for autosave files. */ | |
3407 | if (!auto_saving && fsync (desc) < 0) | |
570d7624 | 3408 | failure = 1, save_errno = errno; |
570d7624 JB |
3409 | #endif |
3410 | ||
3411 | /* Spurious "file has changed on disk" warnings have been | |
3412 | observed on Suns as well. | |
3413 | It seems that `close' can change the modtime, under nfs. | |
3414 | ||
3415 | (This has supposedly been fixed in Sunos 4, | |
3416 | but who knows about all the other machines with NFS?) */ | |
3417 | #if 0 | |
3418 | ||
3419 | /* On VMS and APOLLO, must do the stat after the close | |
3420 | since closing changes the modtime. */ | |
3421 | #ifndef VMS | |
3422 | #ifndef APOLLO | |
3423 | /* Recall that #if defined does not work on VMS. */ | |
3424 | #define FOO | |
3425 | fstat (desc, &st); | |
3426 | #endif | |
3427 | #endif | |
3428 | #endif | |
3429 | ||
3430 | /* NFS can report a write failure now. */ | |
3431 | if (close (desc) < 0) | |
3432 | failure = 1, save_errno = errno; | |
3433 | ||
3434 | #ifdef VMS | |
3435 | /* If we wrote to a temporary name and had no errors, rename to real name. */ | |
3436 | if (fname) | |
3437 | { | |
3438 | if (!failure) | |
3439 | failure = (rename (fn, fname) != 0), save_errno = errno; | |
3440 | fn = fname; | |
3441 | } | |
3442 | #endif /* VMS */ | |
3443 | ||
3444 | #ifndef FOO | |
3445 | stat (fn, &st); | |
3446 | #endif | |
6fc6f94b RS |
3447 | /* Discard the unwind protect for close_file_unwind. */ |
3448 | specpdl_ptr = specpdl + count1; | |
3449 | /* Restore the original current buffer. */ | |
98295b48 | 3450 | visit_file = unbind_to (count, visit_file); |
570d7624 JB |
3451 | |
3452 | #ifdef CLASH_DETECTION | |
3453 | if (!auto_saving) | |
3b7792ed | 3454 | unlock_file (visit_file); |
570d7624 JB |
3455 | #endif /* CLASH_DETECTION */ |
3456 | ||
3457 | /* Do this before reporting IO error | |
3458 | to avoid a "file has changed on disk" warning on | |
3459 | next attempt to save. */ | |
d6a3cc15 | 3460 | if (visiting) |
570d7624 JB |
3461 | current_buffer->modtime = st.st_mtime; |
3462 | ||
3463 | if (failure) | |
ce97267f | 3464 | error ("IO error writing %s: %s", fn, strerror (save_errno)); |
570d7624 | 3465 | |
d6a3cc15 | 3466 | if (visiting) |
570d7624 | 3467 | { |
95385625 | 3468 | SAVE_MODIFF = MODIFF; |
2acfd7ae | 3469 | XSETFASTINT (current_buffer->save_length, Z - BEG); |
3b7792ed | 3470 | current_buffer->filename = visit_file; |
f4226e89 | 3471 | update_mode_lines++; |
570d7624 | 3472 | } |
d6a3cc15 | 3473 | else if (quietly) |
570d7624 JB |
3474 | return Qnil; |
3475 | ||
3476 | if (!auto_saving) | |
3b7792ed | 3477 | message ("Wrote %s", XSTRING (visit_file)->data); |
570d7624 JB |
3478 | |
3479 | return Qnil; | |
3480 | } | |
3481 | ||
d6a3cc15 RS |
3482 | Lisp_Object merge (); |
3483 | ||
3484 | DEFUN ("car-less-than-car", Fcar_less_than_car, Scar_less_than_car, 2, 2, 0, | |
2ba0ccff | 3485 | "Return t if (car A) is numerically less than (car B).") |
d6a3cc15 RS |
3486 | (a, b) |
3487 | Lisp_Object a, b; | |
3488 | { | |
3489 | return Flss (Fcar (a), Fcar (b)); | |
3490 | } | |
3491 | ||
3492 | /* Build the complete list of annotations appropriate for writing out | |
3493 | the text between START and END, by calling all the functions in | |
6fc6f94b RS |
3494 | write-region-annotate-functions and merging the lists they return. |
3495 | If one of these functions switches to a different buffer, we assume | |
3496 | that buffer contains altered text. Therefore, the caller must | |
3497 | make sure to restore the current buffer in all cases, | |
3498 | as save-excursion would do. */ | |
d6a3cc15 RS |
3499 | |
3500 | static Lisp_Object | |
3501 | build_annotations (start, end) | |
3502 | Lisp_Object start, end; | |
3503 | { | |
3504 | Lisp_Object annotations; | |
3505 | Lisp_Object p, res; | |
3506 | struct gcpro gcpro1, gcpro2; | |
3507 | ||
3508 | annotations = Qnil; | |
3509 | p = Vwrite_region_annotate_functions; | |
3510 | GCPRO2 (annotations, p); | |
3511 | while (!NILP (p)) | |
3512 | { | |
6fc6f94b RS |
3513 | struct buffer *given_buffer = current_buffer; |
3514 | Vwrite_region_annotations_so_far = annotations; | |
d6a3cc15 | 3515 | res = call2 (Fcar (p), start, end); |
6fc6f94b RS |
3516 | /* If the function makes a different buffer current, |
3517 | assume that means this buffer contains altered text to be output. | |
3518 | Reset START and END from the buffer bounds | |
3519 | and discard all previous annotations because they should have | |
3520 | been dealt with by this function. */ | |
3521 | if (current_buffer != given_buffer) | |
3522 | { | |
6fc6f94b RS |
3523 | start = BEGV; |
3524 | end = ZV; | |
3525 | annotations = Qnil; | |
3526 | } | |
d6a3cc15 RS |
3527 | Flength (res); /* Check basic validity of return value */ |
3528 | annotations = merge (annotations, res, Qcar_less_than_car); | |
3529 | p = Fcdr (p); | |
3530 | } | |
0d420e88 BG |
3531 | |
3532 | /* Now do the same for annotation functions implied by the file-format */ | |
3533 | if (auto_saving && (!EQ (Vauto_save_file_format, Qt))) | |
3534 | p = Vauto_save_file_format; | |
3535 | else | |
3536 | p = current_buffer->file_format; | |
3537 | while (!NILP (p)) | |
3538 | { | |
3539 | struct buffer *given_buffer = current_buffer; | |
3540 | Vwrite_region_annotations_so_far = annotations; | |
3541 | res = call3 (Qformat_annotate_function, Fcar (p), start, end); | |
3542 | if (current_buffer != given_buffer) | |
3543 | { | |
3544 | start = BEGV; | |
3545 | end = ZV; | |
3546 | annotations = Qnil; | |
3547 | } | |
3548 | Flength (res); | |
3549 | annotations = merge (annotations, res, Qcar_less_than_car); | |
3550 | p = Fcdr (p); | |
3551 | } | |
d6a3cc15 RS |
3552 | UNGCPRO; |
3553 | return annotations; | |
3554 | } | |
3555 | ||
3556 | /* Write to descriptor DESC the LEN characters starting at ADDR, | |
3557 | assuming they start at position POS in the buffer. | |
3558 | Intersperse with them the annotations from *ANNOT | |
3559 | (those which fall within the range of positions POS to POS + LEN), | |
3560 | each at its appropriate position. | |
3561 | ||
3562 | Modify *ANNOT by discarding elements as we output them. | |
3563 | The return value is negative in case of system call failure. */ | |
3564 | ||
3565 | int | |
3566 | a_write (desc, addr, len, pos, annot) | |
3567 | int desc; | |
3568 | register char *addr; | |
3569 | register int len; | |
3570 | int pos; | |
3571 | Lisp_Object *annot; | |
3572 | { | |
3573 | Lisp_Object tem; | |
3574 | int nextpos; | |
3575 | int lastpos = pos + len; | |
3576 | ||
eb15aa18 | 3577 | while (NILP (*annot) || CONSP (*annot)) |
d6a3cc15 RS |
3578 | { |
3579 | tem = Fcar_safe (Fcar (*annot)); | |
3580 | if (INTEGERP (tem) && XINT (tem) >= pos && XFASTINT (tem) <= lastpos) | |
3581 | nextpos = XFASTINT (tem); | |
3582 | else | |
3583 | return e_write (desc, addr, lastpos - pos); | |
3584 | if (nextpos > pos) | |
3585 | { | |
3586 | if (0 > e_write (desc, addr, nextpos - pos)) | |
3587 | return -1; | |
3588 | addr += nextpos - pos; | |
3589 | pos = nextpos; | |
3590 | } | |
3591 | tem = Fcdr (Fcar (*annot)); | |
3592 | if (STRINGP (tem)) | |
3593 | { | |
3594 | if (0 > e_write (desc, XSTRING (tem)->data, XSTRING (tem)->size)) | |
3595 | return -1; | |
3596 | } | |
3597 | *annot = Fcdr (*annot); | |
3598 | } | |
3599 | } | |
3600 | ||
570d7624 JB |
3601 | int |
3602 | e_write (desc, addr, len) | |
3603 | int desc; | |
3604 | register char *addr; | |
3605 | register int len; | |
3606 | { | |
3607 | char buf[16 * 1024]; | |
3608 | register char *p, *end; | |
3609 | ||
3610 | if (!EQ (current_buffer->selective_display, Qt)) | |
3611 | return write (desc, addr, len) - len; | |
3612 | else | |
3613 | { | |
3614 | p = buf; | |
3615 | end = p + sizeof buf; | |
3616 | while (len--) | |
3617 | { | |
3618 | if (p == end) | |
3619 | { | |
3620 | if (write (desc, buf, sizeof buf) != sizeof buf) | |
3621 | return -1; | |
3622 | p = buf; | |
3623 | } | |
3624 | *p = *addr++; | |
3625 | if (*p++ == '\015') | |
3626 | p[-1] = '\n'; | |
3627 | } | |
3628 | if (p != buf) | |
3629 | if (write (desc, buf, p - buf) != p - buf) | |
3630 | return -1; | |
3631 | } | |
3632 | return 0; | |
3633 | } | |
3634 | ||
3635 | DEFUN ("verify-visited-file-modtime", Fverify_visited_file_modtime, | |
3636 | Sverify_visited_file_modtime, 1, 1, 0, | |
3637 | "Return t if last mod time of BUF's visited file matches what BUF records.\n\ | |
3638 | This means that the file has not been changed since it was visited or saved.") | |
3639 | (buf) | |
3640 | Lisp_Object buf; | |
3641 | { | |
3642 | struct buffer *b; | |
3643 | struct stat st; | |
32f4334d | 3644 | Lisp_Object handler; |
570d7624 JB |
3645 | |
3646 | CHECK_BUFFER (buf, 0); | |
3647 | b = XBUFFER (buf); | |
3648 | ||
93c30b5f | 3649 | if (!STRINGP (b->filename)) return Qt; |
570d7624 JB |
3650 | if (b->modtime == 0) return Qt; |
3651 | ||
32f4334d RS |
3652 | /* If the file name has special constructs in it, |
3653 | call the corresponding file handler. */ | |
49307295 KH |
3654 | handler = Ffind_file_name_handler (b->filename, |
3655 | Qverify_visited_file_modtime); | |
32f4334d | 3656 | if (!NILP (handler)) |
09121adc | 3657 | return call2 (handler, Qverify_visited_file_modtime, buf); |
32f4334d | 3658 | |
570d7624 JB |
3659 | if (stat (XSTRING (b->filename)->data, &st) < 0) |
3660 | { | |
3661 | /* If the file doesn't exist now and didn't exist before, | |
3662 | we say that it isn't modified, provided the error is a tame one. */ | |
3663 | if (errno == ENOENT || errno == EACCES || errno == ENOTDIR) | |
3664 | st.st_mtime = -1; | |
3665 | else | |
3666 | st.st_mtime = 0; | |
3667 | } | |
3668 | if (st.st_mtime == b->modtime | |
3669 | /* If both are positive, accept them if they are off by one second. */ | |
3670 | || (st.st_mtime > 0 && b->modtime > 0 | |
3671 | && (st.st_mtime == b->modtime + 1 | |
3672 | || st.st_mtime == b->modtime - 1))) | |
3673 | return Qt; | |
3674 | return Qnil; | |
3675 | } | |
3676 | ||
3677 | DEFUN ("clear-visited-file-modtime", Fclear_visited_file_modtime, | |
3678 | Sclear_visited_file_modtime, 0, 0, 0, | |
3679 | "Clear out records of last mod time of visited file.\n\ | |
3680 | Next attempt to save will certainly not complain of a discrepancy.") | |
3681 | () | |
3682 | { | |
3683 | current_buffer->modtime = 0; | |
3684 | return Qnil; | |
3685 | } | |
3686 | ||
f5d5eccf RS |
3687 | DEFUN ("visited-file-modtime", Fvisited_file_modtime, |
3688 | Svisited_file_modtime, 0, 0, 0, | |
3689 | "Return the current buffer's recorded visited file modification time.\n\ | |
3690 | The value is a list of the form (HIGH . LOW), like the time values\n\ | |
3691 | that `file-attributes' returns.") | |
3692 | () | |
3693 | { | |
3694 | return long_to_cons (current_buffer->modtime); | |
3695 | } | |
3696 | ||
570d7624 | 3697 | DEFUN ("set-visited-file-modtime", Fset_visited_file_modtime, |
f5d5eccf | 3698 | Sset_visited_file_modtime, 0, 1, 0, |
570d7624 JB |
3699 | "Update buffer's recorded modification time from the visited file's time.\n\ |
3700 | Useful if the buffer was not read from the file normally\n\ | |
f5d5eccf RS |
3701 | or if the file itself has been changed for some known benign reason.\n\ |
3702 | An argument specifies the modification time value to use\n\ | |
3703 | \(instead of that of the visited file), in the form of a list\n\ | |
3704 | \(HIGH . LOW) or (HIGH LOW).") | |
3705 | (time_list) | |
3706 | Lisp_Object time_list; | |
570d7624 | 3707 | { |
f5d5eccf RS |
3708 | if (!NILP (time_list)) |
3709 | current_buffer->modtime = cons_to_long (time_list); | |
3710 | else | |
3711 | { | |
3712 | register Lisp_Object filename; | |
3713 | struct stat st; | |
3714 | Lisp_Object handler; | |
570d7624 | 3715 | |
f5d5eccf | 3716 | filename = Fexpand_file_name (current_buffer->filename, Qnil); |
32f4334d | 3717 | |
f5d5eccf RS |
3718 | /* If the file name has special constructs in it, |
3719 | call the corresponding file handler. */ | |
49307295 | 3720 | handler = Ffind_file_name_handler (filename, Qset_visited_file_modtime); |
f5d5eccf | 3721 | if (!NILP (handler)) |
caf3c431 | 3722 | /* The handler can find the file name the same way we did. */ |
76c881b0 | 3723 | return call2 (handler, Qset_visited_file_modtime, Qnil); |
f5d5eccf RS |
3724 | else if (stat (XSTRING (filename)->data, &st) >= 0) |
3725 | current_buffer->modtime = st.st_mtime; | |
3726 | } | |
570d7624 JB |
3727 | |
3728 | return Qnil; | |
3729 | } | |
3730 | \f | |
3731 | Lisp_Object | |
3732 | auto_save_error () | |
3733 | { | |
570d7624 | 3734 | ring_bell (); |
1a04498e | 3735 | message ("Autosaving...error for %s", XSTRING (current_buffer->name)->data); |
de49a6d3 | 3736 | Fsleep_for (make_number (1), Qnil); |
1a04498e | 3737 | message ("Autosaving...error!for %s", XSTRING (current_buffer->name)->data); |
de49a6d3 | 3738 | Fsleep_for (make_number (1), Qnil); |
1a04498e | 3739 | message ("Autosaving...error for %s", XSTRING (current_buffer->name)->data); |
de49a6d3 | 3740 | Fsleep_for (make_number (1), Qnil); |
570d7624 JB |
3741 | return Qnil; |
3742 | } | |
3743 | ||
3744 | Lisp_Object | |
3745 | auto_save_1 () | |
3746 | { | |
3747 | unsigned char *fn; | |
3748 | struct stat st; | |
3749 | ||
3750 | /* Get visited file's mode to become the auto save file's mode. */ | |
3751 | if (stat (XSTRING (current_buffer->filename)->data, &st) >= 0) | |
3752 | /* But make sure we can overwrite it later! */ | |
3753 | auto_save_mode_bits = st.st_mode | 0600; | |
3754 | else | |
3755 | auto_save_mode_bits = 0666; | |
3756 | ||
3757 | return | |
3758 | Fwrite_region (Qnil, Qnil, | |
3759 | current_buffer->auto_save_file_name, | |
3760 | Qnil, Qlambda); | |
3761 | } | |
3762 | ||
e54d3b5d | 3763 | static Lisp_Object |
15fa1468 RS |
3764 | do_auto_save_unwind (desc) /* used as unwind-protect function */ |
3765 | Lisp_Object desc; | |
e54d3b5d | 3766 | { |
15fa1468 | 3767 | close (XINT (desc)); |
e54d3b5d RS |
3768 | return Qnil; |
3769 | } | |
3770 | ||
570d7624 JB |
3771 | DEFUN ("do-auto-save", Fdo_auto_save, Sdo_auto_save, 0, 2, "", |
3772 | "Auto-save all buffers that need it.\n\ | |
3773 | This is all buffers that have auto-saving enabled\n\ | |
3774 | and are changed since last auto-saved.\n\ | |
3775 | Auto-saving writes the buffer into a file\n\ | |
3776 | so that your editing is not lost if the system crashes.\n\ | |
012d4cdc RS |
3777 | This file is not the file you visited; that changes only when you save.\n\ |
3778 | Normally we run the normal hook `auto-save-hook' before saving.\n\n\ | |
570d7624 | 3779 | Non-nil first argument means do not print any message if successful.\n\ |
4746118a | 3780 | Non-nil second argument means save only current buffer.") |
17857782 JB |
3781 | (no_message, current_only) |
3782 | Lisp_Object no_message, current_only; | |
570d7624 JB |
3783 | { |
3784 | struct buffer *old = current_buffer, *b; | |
3785 | Lisp_Object tail, buf; | |
3786 | int auto_saved = 0; | |
3787 | char *omessage = echo_area_glyphs; | |
f05b275b | 3788 | int omessage_length = echo_area_glyphs_length; |
f14b1c68 JB |
3789 | extern int minibuf_level; |
3790 | int do_handled_files; | |
ff4c9993 | 3791 | Lisp_Object oquit; |
e54d3b5d | 3792 | int listdesc; |
e54d3b5d RS |
3793 | int count = specpdl_ptr - specpdl; |
3794 | int *ptr; | |
ff4c9993 RS |
3795 | |
3796 | /* Ordinarily don't quit within this function, | |
3797 | but don't make it impossible to quit (in case we get hung in I/O). */ | |
3798 | oquit = Vquit_flag; | |
3799 | Vquit_flag = Qnil; | |
570d7624 JB |
3800 | |
3801 | /* No GCPRO needed, because (when it matters) all Lisp_Object variables | |
3802 | point to non-strings reached from Vbuffer_alist. */ | |
3803 | ||
3804 | auto_saving = 1; | |
3805 | if (minibuf_level) | |
17857782 | 3806 | no_message = Qt; |
570d7624 | 3807 | |
265a9e55 | 3808 | if (!NILP (Vrun_hooks)) |
570d7624 JB |
3809 | call1 (Vrun_hooks, intern ("auto-save-hook")); |
3810 | ||
e54d3b5d RS |
3811 | if (STRINGP (Vauto_save_list_file_name)) |
3812 | { | |
5e570b75 | 3813 | #ifdef DOS_NT |
e54d3b5d RS |
3814 | listdesc = open (XSTRING (Vauto_save_list_file_name)->data, |
3815 | O_WRONLY | O_TRUNC | O_CREAT | O_TEXT, | |
3816 | S_IREAD | S_IWRITE); | |
5e570b75 | 3817 | #else /* not DOS_NT */ |
e54d3b5d | 3818 | listdesc = creat (XSTRING (Vauto_save_list_file_name)->data, 0666); |
5e570b75 | 3819 | #endif /* not DOS_NT */ |
e54d3b5d RS |
3820 | } |
3821 | else | |
3822 | listdesc = -1; | |
e54d3b5d | 3823 | |
15fa1468 RS |
3824 | /* Arrange to close that file whether or not we get an error. */ |
3825 | if (listdesc >= 0) | |
3826 | record_unwind_protect (do_auto_save_unwind, make_number (listdesc)); | |
e54d3b5d | 3827 | |
f14b1c68 JB |
3828 | /* First, save all files which don't have handlers. If Emacs is |
3829 | crashing, the handlers may tweak what is causing Emacs to crash | |
3830 | in the first place, and it would be a shame if Emacs failed to | |
3831 | autosave perfectly ordinary files because it couldn't handle some | |
3832 | ange-ftp'd file. */ | |
3833 | for (do_handled_files = 0; do_handled_files < 2; do_handled_files++) | |
41d86b13 | 3834 | for (tail = Vbuffer_alist; GC_CONSP (tail); tail = XCONS (tail)->cdr) |
f14b1c68 JB |
3835 | { |
3836 | buf = XCONS (XCONS (tail)->car)->cdr; | |
3837 | b = XBUFFER (buf); | |
e54d3b5d RS |
3838 | |
3839 | /* Record all the buffers that have auto save mode | |
3840 | in the special file that lists them. */ | |
93c30b5f | 3841 | if (STRINGP (b->auto_save_file_name) |
e54d3b5d RS |
3842 | && listdesc >= 0 && do_handled_files == 0) |
3843 | { | |
3844 | write (listdesc, XSTRING (b->auto_save_file_name)->data, | |
3845 | XSTRING (b->auto_save_file_name)->size); | |
3846 | write (listdesc, "\n", 1); | |
3847 | } | |
17857782 | 3848 | |
f14b1c68 JB |
3849 | if (!NILP (current_only) |
3850 | && b != current_buffer) | |
3851 | continue; | |
e54d3b5d | 3852 | |
95385625 RS |
3853 | /* Don't auto-save indirect buffers. |
3854 | The base buffer takes care of it. */ | |
3855 | if (b->base_buffer) | |
3856 | continue; | |
3857 | ||
f14b1c68 JB |
3858 | /* Check for auto save enabled |
3859 | and file changed since last auto save | |
3860 | and file changed since last real save. */ | |
93c30b5f | 3861 | if (STRINGP (b->auto_save_file_name) |
95385625 | 3862 | && BUF_SAVE_MODIFF (b) < BUF_MODIFF (b) |
f14b1c68 | 3863 | && b->auto_save_modified < BUF_MODIFF (b) |
82c2d839 RS |
3864 | /* -1 means we've turned off autosaving for a while--see below. */ |
3865 | && XINT (b->save_length) >= 0 | |
f14b1c68 | 3866 | && (do_handled_files |
49307295 KH |
3867 | || NILP (Ffind_file_name_handler (b->auto_save_file_name, |
3868 | Qwrite_region)))) | |
f14b1c68 | 3869 | { |
b60247d9 RS |
3870 | EMACS_TIME before_time, after_time; |
3871 | ||
3872 | EMACS_GET_TIME (before_time); | |
3873 | ||
3874 | /* If we had a failure, don't try again for 20 minutes. */ | |
3875 | if (b->auto_save_failure_time >= 0 | |
3876 | && EMACS_SECS (before_time) - b->auto_save_failure_time < 1200) | |
3877 | continue; | |
3878 | ||
f14b1c68 JB |
3879 | if ((XFASTINT (b->save_length) * 10 |
3880 | > (BUF_Z (b) - BUF_BEG (b)) * 13) | |
3881 | /* A short file is likely to change a large fraction; | |
3882 | spare the user annoying messages. */ | |
3883 | && XFASTINT (b->save_length) > 5000 | |
3884 | /* These messages are frequent and annoying for `*mail*'. */ | |
3885 | && !EQ (b->filename, Qnil) | |
3886 | && NILP (no_message)) | |
3887 | { | |
3888 | /* It has shrunk too much; turn off auto-saving here. */ | |
3889 | message ("Buffer %s has shrunk a lot; auto save turned off there", | |
3890 | XSTRING (b->name)->data); | |
82c2d839 RS |
3891 | /* Turn off auto-saving until there's a real save, |
3892 | and prevent any more warnings. */ | |
46283abe | 3893 | XSETINT (b->save_length, -1); |
f14b1c68 JB |
3894 | Fsleep_for (make_number (1), Qnil); |
3895 | continue; | |
3896 | } | |
3897 | set_buffer_internal (b); | |
3898 | if (!auto_saved && NILP (no_message)) | |
3899 | message1 ("Auto-saving..."); | |
3900 | internal_condition_case (auto_save_1, Qt, auto_save_error); | |
3901 | auto_saved++; | |
3902 | b->auto_save_modified = BUF_MODIFF (b); | |
2acfd7ae | 3903 | XSETFASTINT (current_buffer->save_length, Z - BEG); |
f14b1c68 | 3904 | set_buffer_internal (old); |
b60247d9 RS |
3905 | |
3906 | EMACS_GET_TIME (after_time); | |
3907 | ||
3908 | /* If auto-save took more than 60 seconds, | |
3909 | assume it was an NFS failure that got a timeout. */ | |
3910 | if (EMACS_SECS (after_time) - EMACS_SECS (before_time) > 60) | |
3911 | b->auto_save_failure_time = EMACS_SECS (after_time); | |
f14b1c68 JB |
3912 | } |
3913 | } | |
570d7624 | 3914 | |
b67f2ca5 RS |
3915 | /* Prevent another auto save till enough input events come in. */ |
3916 | record_auto_save (); | |
570d7624 | 3917 | |
17857782 | 3918 | if (auto_saved && NILP (no_message)) |
f05b275b KH |
3919 | { |
3920 | if (omessage) | |
3921 | message2 (omessage, omessage_length); | |
3922 | else | |
3923 | message1 ("Auto-saving...done"); | |
3924 | } | |
570d7624 | 3925 | |
ff4c9993 RS |
3926 | Vquit_flag = oquit; |
3927 | ||
570d7624 | 3928 | auto_saving = 0; |
e54d3b5d | 3929 | unbind_to (count, Qnil); |
570d7624 JB |
3930 | return Qnil; |
3931 | } | |
3932 | ||
3933 | DEFUN ("set-buffer-auto-saved", Fset_buffer_auto_saved, | |
3934 | Sset_buffer_auto_saved, 0, 0, 0, | |
3935 | "Mark current buffer as auto-saved with its current text.\n\ | |
3936 | No auto-save file will be written until the buffer changes again.") | |
3937 | () | |
3938 | { | |
3939 | current_buffer->auto_save_modified = MODIFF; | |
2acfd7ae | 3940 | XSETFASTINT (current_buffer->save_length, Z - BEG); |
b60247d9 RS |
3941 | current_buffer->auto_save_failure_time = -1; |
3942 | return Qnil; | |
3943 | } | |
3944 | ||
3945 | DEFUN ("clear-buffer-auto-save-failure", Fclear_buffer_auto_save_failure, | |
3946 | Sclear_buffer_auto_save_failure, 0, 0, 0, | |
3947 | "Clear any record of a recent auto-save failure in the current buffer.") | |
3948 | () | |
3949 | { | |
3950 | current_buffer->auto_save_failure_time = -1; | |
570d7624 JB |
3951 | return Qnil; |
3952 | } | |
3953 | ||
3954 | DEFUN ("recent-auto-save-p", Frecent_auto_save_p, Srecent_auto_save_p, | |
3955 | 0, 0, 0, | |
3956 | "Return t if buffer has been auto-saved since last read in or saved.") | |
3957 | () | |
3958 | { | |
95385625 | 3959 | return (SAVE_MODIFF < current_buffer->auto_save_modified) ? Qt : Qnil; |
570d7624 JB |
3960 | } |
3961 | \f | |
3962 | /* Reading and completing file names */ | |
3963 | extern Lisp_Object Ffile_name_completion (), Ffile_name_all_completions (); | |
3964 | ||
6e710ae5 RS |
3965 | /* In the string VAL, change each $ to $$ and return the result. */ |
3966 | ||
3967 | static Lisp_Object | |
3968 | double_dollars (val) | |
3969 | Lisp_Object val; | |
3970 | { | |
3971 | register unsigned char *old, *new; | |
3972 | register int n; | |
3973 | int osize, count; | |
3974 | ||
3975 | osize = XSTRING (val)->size; | |
3976 | /* Quote "$" as "$$" to get it past substitute-in-file-name */ | |
3977 | for (n = osize, count = 0, old = XSTRING (val)->data; n > 0; n--) | |
3978 | if (*old++ == '$') count++; | |
3979 | if (count > 0) | |
3980 | { | |
3981 | old = XSTRING (val)->data; | |
3982 | val = Fmake_string (make_number (osize + count), make_number (0)); | |
3983 | new = XSTRING (val)->data; | |
3984 | for (n = osize; n > 0; n--) | |
3985 | if (*old != '$') | |
3986 | *new++ = *old++; | |
3987 | else | |
3988 | { | |
3989 | *new++ = '$'; | |
3990 | *new++ = '$'; | |
3991 | old++; | |
3992 | } | |
3993 | } | |
3994 | return val; | |
3995 | } | |
3996 | ||
570d7624 JB |
3997 | DEFUN ("read-file-name-internal", Fread_file_name_internal, Sread_file_name_internal, |
3998 | 3, 3, 0, | |
3999 | "Internal subroutine for read-file-name. Do not call this.") | |
4000 | (string, dir, action) | |
4001 | Lisp_Object string, dir, action; | |
4002 | /* action is nil for complete, t for return list of completions, | |
4003 | lambda for verify final value */ | |
4004 | { | |
4005 | Lisp_Object name, specdir, realdir, val, orig_string; | |
09121adc | 4006 | int changed; |
8ce069f5 | 4007 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; |
09121adc RS |
4008 | |
4009 | realdir = dir; | |
4010 | name = string; | |
4011 | orig_string = Qnil; | |
4012 | specdir = Qnil; | |
4013 | changed = 0; | |
4014 | /* No need to protect ACTION--we only compare it with t and nil. */ | |
8ce069f5 | 4015 | GCPRO5 (string, realdir, name, specdir, orig_string); |
570d7624 JB |
4016 | |
4017 | if (XSTRING (string)->size == 0) | |
4018 | { | |
570d7624 | 4019 | if (EQ (action, Qlambda)) |
09121adc RS |
4020 | { |
4021 | UNGCPRO; | |
4022 | return Qnil; | |
4023 | } | |
570d7624 JB |
4024 | } |
4025 | else | |
4026 | { | |
4027 | orig_string = string; | |
4028 | string = Fsubstitute_in_file_name (string); | |
09121adc | 4029 | changed = NILP (Fstring_equal (string, orig_string)); |
570d7624 | 4030 | name = Ffile_name_nondirectory (string); |
09121adc RS |
4031 | val = Ffile_name_directory (string); |
4032 | if (! NILP (val)) | |
4033 | realdir = Fexpand_file_name (val, realdir); | |
570d7624 JB |
4034 | } |
4035 | ||
265a9e55 | 4036 | if (NILP (action)) |
570d7624 JB |
4037 | { |
4038 | specdir = Ffile_name_directory (string); | |
4039 | val = Ffile_name_completion (name, realdir); | |
09121adc | 4040 | UNGCPRO; |
93c30b5f | 4041 | if (!STRINGP (val)) |
570d7624 | 4042 | { |
09121adc | 4043 | if (changed) |
dbd04e01 | 4044 | return double_dollars (string); |
09121adc | 4045 | return val; |
570d7624 JB |
4046 | } |
4047 | ||
265a9e55 | 4048 | if (!NILP (specdir)) |
570d7624 JB |
4049 | val = concat2 (specdir, val); |
4050 | #ifndef VMS | |
6e710ae5 RS |
4051 | return double_dollars (val); |
4052 | #else /* not VMS */ | |
09121adc | 4053 | return val; |
6e710ae5 | 4054 | #endif /* not VMS */ |
570d7624 | 4055 | } |
09121adc | 4056 | UNGCPRO; |
570d7624 JB |
4057 | |
4058 | if (EQ (action, Qt)) | |
4059 | return Ffile_name_all_completions (name, realdir); | |
4060 | /* Only other case actually used is ACTION = lambda */ | |
4061 | #ifdef VMS | |
4062 | /* Supposedly this helps commands such as `cd' that read directory names, | |
4063 | but can someone explain how it helps them? -- RMS */ | |
4064 | if (XSTRING (name)->size == 0) | |
4065 | return Qt; | |
4066 | #endif /* VMS */ | |
4067 | return Ffile_exists_p (string); | |
4068 | } | |
4069 | ||
4070 | DEFUN ("read-file-name", Fread_file_name, Sread_file_name, 1, 5, 0, | |
4071 | "Read file name, prompting with PROMPT and completing in directory DIR.\n\ | |
4072 | Value is not expanded---you must call `expand-file-name' yourself.\n\ | |
4073 | Default name to DEFAULT if user enters a null string.\n\ | |
3beeedfe RS |
4074 | (If DEFAULT is omitted, the visited file name is used,\n\ |
4075 | except that if INITIAL is specified, that combined with DIR is used.)\n\ | |
570d7624 JB |
4076 | Fourth arg MUSTMATCH non-nil means require existing file's name.\n\ |
4077 | Non-nil and non-t means also require confirmation after completion.\n\ | |
4078 | Fifth arg INITIAL specifies text to start with.\n\ | |
4079 | DIR defaults to current buffer's directory default.") | |
4080 | (prompt, dir, defalt, mustmatch, initial) | |
4081 | Lisp_Object prompt, dir, defalt, mustmatch, initial; | |
4082 | { | |
85b5fe07 | 4083 | Lisp_Object val, insdef, insdef1, tem; |
570d7624 JB |
4084 | struct gcpro gcpro1, gcpro2; |
4085 | register char *homedir; | |
4086 | int count; | |
4087 | ||
265a9e55 | 4088 | if (NILP (dir)) |
570d7624 | 4089 | dir = current_buffer->directory; |
265a9e55 | 4090 | if (NILP (defalt)) |
3beeedfe RS |
4091 | { |
4092 | if (! NILP (initial)) | |
4093 | defalt = Fexpand_file_name (initial, dir); | |
4094 | else | |
4095 | defalt = current_buffer->filename; | |
4096 | } | |
570d7624 JB |
4097 | |
4098 | /* If dir starts with user's homedir, change that to ~. */ | |
4099 | homedir = (char *) egetenv ("HOME"); | |
4100 | if (homedir != 0 | |
93c30b5f | 4101 | && STRINGP (dir) |
570d7624 | 4102 | && !strncmp (homedir, XSTRING (dir)->data, strlen (homedir)) |
5e570b75 | 4103 | && IS_DIRECTORY_SEP (XSTRING (dir)->data[strlen (homedir)])) |
570d7624 JB |
4104 | { |
4105 | dir = make_string (XSTRING (dir)->data + strlen (homedir) - 1, | |
4106 | XSTRING (dir)->size - strlen (homedir) + 1); | |
4107 | XSTRING (dir)->data[0] = '~'; | |
4108 | } | |
4109 | ||
4110 | if (insert_default_directory) | |
4111 | { | |
4112 | insdef = dir; | |
265a9e55 | 4113 | if (!NILP (initial)) |
570d7624 | 4114 | { |
15c65264 | 4115 | Lisp_Object args[2], pos; |
570d7624 JB |
4116 | |
4117 | args[0] = insdef; | |
4118 | args[1] = initial; | |
4119 | insdef = Fconcat (2, args); | |
351bd676 | 4120 | pos = make_number (XSTRING (double_dollars (dir))->size); |
6e710ae5 | 4121 | insdef1 = Fcons (double_dollars (insdef), pos); |
570d7624 | 4122 | } |
6e710ae5 RS |
4123 | else |
4124 | insdef1 = double_dollars (insdef); | |
570d7624 | 4125 | } |
351bd676 KH |
4126 | else if (!NILP (initial)) |
4127 | { | |
4128 | insdef = initial; | |
4129 | insdef1 = Fcons (double_dollars (insdef), 0); | |
4130 | } | |
570d7624 | 4131 | else |
85b5fe07 | 4132 | insdef = Qnil, insdef1 = Qnil; |
570d7624 JB |
4133 | |
4134 | #ifdef VMS | |
4135 | count = specpdl_ptr - specpdl; | |
4136 | specbind (intern ("completion-ignore-case"), Qt); | |
4137 | #endif | |
4138 | ||
4139 | GCPRO2 (insdef, defalt); | |
4140 | val = Fcompleting_read (prompt, intern ("read-file-name-internal"), | |
85b5fe07 | 4141 | dir, mustmatch, insdef1, |
15c65264 | 4142 | Qfile_name_history); |
570d7624 JB |
4143 | |
4144 | #ifdef VMS | |
4145 | unbind_to (count, Qnil); | |
4146 | #endif | |
4147 | ||
4148 | UNGCPRO; | |
265a9e55 | 4149 | if (NILP (val)) |
570d7624 JB |
4150 | error ("No file name specified"); |
4151 | tem = Fstring_equal (val, insdef); | |
265a9e55 | 4152 | if (!NILP (tem) && !NILP (defalt)) |
570d7624 | 4153 | return defalt; |
b320926a | 4154 | if (XSTRING (val)->size == 0 && NILP (insdef)) |
d9bc1c99 RS |
4155 | { |
4156 | if (!NILP (defalt)) | |
4157 | return defalt; | |
4158 | else | |
4159 | error ("No default file name"); | |
4160 | } | |
570d7624 JB |
4161 | return Fsubstitute_in_file_name (val); |
4162 | } | |
4163 | ||
5e570b75 | 4164 | #if 0 /* Old version */ |
570d7624 | 4165 | DEFUN ("read-file-name", Fread_file_name, Sread_file_name, 1, 5, 0, |
0de25302 KH |
4166 | /* Don't confuse make-docfile by having two doc strings for this function. |
4167 | make-docfile does not pay attention to #if, for good reason! */ | |
4168 | 0) | |
570d7624 JB |
4169 | (prompt, dir, defalt, mustmatch, initial) |
4170 | Lisp_Object prompt, dir, defalt, mustmatch, initial; | |
4171 | { | |
4172 | Lisp_Object val, insdef, tem; | |
4173 | struct gcpro gcpro1, gcpro2; | |
4174 | register char *homedir; | |
4175 | int count; | |
4176 | ||
265a9e55 | 4177 | if (NILP (dir)) |
570d7624 | 4178 | dir = current_buffer->directory; |
265a9e55 | 4179 | if (NILP (defalt)) |
570d7624 JB |
4180 | defalt = current_buffer->filename; |
4181 | ||
4182 | /* If dir starts with user's homedir, change that to ~. */ | |
4183 | homedir = (char *) egetenv ("HOME"); | |
4184 | if (homedir != 0 | |
93c30b5f | 4185 | && STRINGP (dir) |
570d7624 JB |
4186 | && !strncmp (homedir, XSTRING (dir)->data, strlen (homedir)) |
4187 | && XSTRING (dir)->data[strlen (homedir)] == '/') | |
4188 | { | |
4189 | dir = make_string (XSTRING (dir)->data + strlen (homedir) - 1, | |
4190 | XSTRING (dir)->size - strlen (homedir) + 1); | |
4191 | XSTRING (dir)->data[0] = '~'; | |
4192 | } | |
4193 | ||
265a9e55 | 4194 | if (!NILP (initial)) |
570d7624 JB |
4195 | insdef = initial; |
4196 | else if (insert_default_directory) | |
4197 | insdef = dir; | |
4198 | else | |
4199 | insdef = build_string (""); | |
4200 | ||
4201 | #ifdef VMS | |
4202 | count = specpdl_ptr - specpdl; | |
4203 | specbind (intern ("completion-ignore-case"), Qt); | |
4204 | #endif | |
4205 | ||
4206 | GCPRO2 (insdef, defalt); | |
4207 | val = Fcompleting_read (prompt, intern ("read-file-name-internal"), | |
4208 | dir, mustmatch, | |
15c65264 RS |
4209 | insert_default_directory ? insdef : Qnil, |
4210 | Qfile_name_history); | |
570d7624 JB |
4211 | |
4212 | #ifdef VMS | |
4213 | unbind_to (count, Qnil); | |
4214 | #endif | |
4215 | ||
4216 | UNGCPRO; | |
265a9e55 | 4217 | if (NILP (val)) |
570d7624 JB |
4218 | error ("No file name specified"); |
4219 | tem = Fstring_equal (val, insdef); | |
265a9e55 | 4220 | if (!NILP (tem) && !NILP (defalt)) |
570d7624 JB |
4221 | return defalt; |
4222 | return Fsubstitute_in_file_name (val); | |
4223 | } | |
4224 | #endif /* Old version */ | |
4225 | \f | |
4226 | syms_of_fileio () | |
4227 | { | |
0bf2eed2 | 4228 | Qexpand_file_name = intern ("expand-file-name"); |
273e0829 | 4229 | Qsubstitute_in_file_name = intern ("substitute-in-file-name"); |
0bf2eed2 RS |
4230 | Qdirectory_file_name = intern ("directory-file-name"); |
4231 | Qfile_name_directory = intern ("file-name-directory"); | |
4232 | Qfile_name_nondirectory = intern ("file-name-nondirectory"); | |
642ef245 | 4233 | Qunhandled_file_name_directory = intern ("unhandled-file-name-directory"); |
0bf2eed2 | 4234 | Qfile_name_as_directory = intern ("file-name-as-directory"); |
32f4334d | 4235 | Qcopy_file = intern ("copy-file"); |
a6e6e718 | 4236 | Qmake_directory_internal = intern ("make-directory-internal"); |
32f4334d RS |
4237 | Qdelete_directory = intern ("delete-directory"); |
4238 | Qdelete_file = intern ("delete-file"); | |
4239 | Qrename_file = intern ("rename-file"); | |
4240 | Qadd_name_to_file = intern ("add-name-to-file"); | |
4241 | Qmake_symbolic_link = intern ("make-symbolic-link"); | |
4242 | Qfile_exists_p = intern ("file-exists-p"); | |
4243 | Qfile_executable_p = intern ("file-executable-p"); | |
4244 | Qfile_readable_p = intern ("file-readable-p"); | |
4245 | Qfile_symlink_p = intern ("file-symlink-p"); | |
4246 | Qfile_writable_p = intern ("file-writable-p"); | |
4247 | Qfile_directory_p = intern ("file-directory-p"); | |
4248 | Qfile_accessible_directory_p = intern ("file-accessible-directory-p"); | |
4249 | Qfile_modes = intern ("file-modes"); | |
4250 | Qset_file_modes = intern ("set-file-modes"); | |
4251 | Qfile_newer_than_file_p = intern ("file-newer-than-file-p"); | |
4252 | Qinsert_file_contents = intern ("insert-file-contents"); | |
4253 | Qwrite_region = intern ("write-region"); | |
4254 | Qverify_visited_file_modtime = intern ("verify-visited-file-modtime"); | |
3ec46acd | 4255 | Qset_visited_file_modtime = intern ("set-visited-file-modtime"); |
32f4334d | 4256 | |
642ef245 | 4257 | staticpro (&Qexpand_file_name); |
273e0829 | 4258 | staticpro (&Qsubstitute_in_file_name); |
642ef245 JB |
4259 | staticpro (&Qdirectory_file_name); |
4260 | staticpro (&Qfile_name_directory); | |
4261 | staticpro (&Qfile_name_nondirectory); | |
4262 | staticpro (&Qunhandled_file_name_directory); | |
4263 | staticpro (&Qfile_name_as_directory); | |
15c65264 | 4264 | staticpro (&Qcopy_file); |
c34b559d | 4265 | staticpro (&Qmake_directory_internal); |
15c65264 RS |
4266 | staticpro (&Qdelete_directory); |
4267 | staticpro (&Qdelete_file); | |
4268 | staticpro (&Qrename_file); | |
4269 | staticpro (&Qadd_name_to_file); | |
4270 | staticpro (&Qmake_symbolic_link); | |
4271 | staticpro (&Qfile_exists_p); | |
4272 | staticpro (&Qfile_executable_p); | |
4273 | staticpro (&Qfile_readable_p); | |
4274 | staticpro (&Qfile_symlink_p); | |
4275 | staticpro (&Qfile_writable_p); | |
4276 | staticpro (&Qfile_directory_p); | |
4277 | staticpro (&Qfile_accessible_directory_p); | |
4278 | staticpro (&Qfile_modes); | |
4279 | staticpro (&Qset_file_modes); | |
4280 | staticpro (&Qfile_newer_than_file_p); | |
4281 | staticpro (&Qinsert_file_contents); | |
4282 | staticpro (&Qwrite_region); | |
4283 | staticpro (&Qverify_visited_file_modtime); | |
642ef245 JB |
4284 | |
4285 | Qfile_name_history = intern ("file-name-history"); | |
4286 | Fset (Qfile_name_history, Qnil); | |
15c65264 RS |
4287 | staticpro (&Qfile_name_history); |
4288 | ||
570d7624 JB |
4289 | Qfile_error = intern ("file-error"); |
4290 | staticpro (&Qfile_error); | |
4291 | Qfile_already_exists = intern("file-already-exists"); | |
4292 | staticpro (&Qfile_already_exists); | |
4293 | ||
5e570b75 | 4294 | #ifdef DOS_NT |
4c3c22f3 RS |
4295 | Qfind_buffer_file_type = intern ("find-buffer-file-type"); |
4296 | staticpro (&Qfind_buffer_file_type); | |
5e570b75 | 4297 | #endif /* DOS_NT */ |
4c3c22f3 | 4298 | |
0d420e88 BG |
4299 | DEFVAR_LISP ("auto-save-file-format", &Vauto_save_file_format, |
4300 | "*Format in which to write auto-save files. | |
4301 | Should be a list of symbols naming formats that are defined in `format-alist'.\n\ | |
4302 | If it is t, which is the default, auto-save files are written in the\n\ | |
4303 | same format as a regular save would use."); | |
4304 | Vauto_save_file_format = Qt; | |
4305 | ||
4306 | Qformat_decode = intern ("format-decode"); | |
4307 | staticpro (&Qformat_decode); | |
4308 | Qformat_annotate_function = intern ("format-annotate-function"); | |
4309 | staticpro (&Qformat_annotate_function); | |
4310 | ||
d6a3cc15 RS |
4311 | Qcar_less_than_car = intern ("car-less-than-car"); |
4312 | staticpro (&Qcar_less_than_car); | |
4313 | ||
570d7624 JB |
4314 | Fput (Qfile_error, Qerror_conditions, |
4315 | Fcons (Qfile_error, Fcons (Qerror, Qnil))); | |
4316 | Fput (Qfile_error, Qerror_message, | |
4317 | build_string ("File error")); | |
4318 | ||
4319 | Fput (Qfile_already_exists, Qerror_conditions, | |
4320 | Fcons (Qfile_already_exists, | |
4321 | Fcons (Qfile_error, Fcons (Qerror, Qnil)))); | |
4322 | Fput (Qfile_already_exists, Qerror_message, | |
4323 | build_string ("File already exists")); | |
4324 | ||
4325 | DEFVAR_BOOL ("insert-default-directory", &insert_default_directory, | |
4326 | "*Non-nil means when reading a filename start with default dir in minibuffer."); | |
4327 | insert_default_directory = 1; | |
4328 | ||
4329 | DEFVAR_BOOL ("vms-stmlf-recfm", &vms_stmlf_recfm, | |
4330 | "*Non-nil means write new files with record format `stmlf'.\n\ | |
4331 | nil means use format `var'. This variable is meaningful only on VMS."); | |
4332 | vms_stmlf_recfm = 0; | |
4333 | ||
1d1826db RS |
4334 | DEFVAR_LISP ("file-name-handler-alist", &Vfile_name_handler_alist, |
4335 | "*Alist of elements (REGEXP . HANDLER) for file names handled specially.\n\ | |
4336 | If a file name matches REGEXP, then all I/O on that file is done by calling\n\ | |
4337 | HANDLER.\n\ | |
4338 | \n\ | |
4339 | The first argument given to HANDLER is the name of the I/O primitive\n\ | |
4340 | to be handled; the remaining arguments are the arguments that were\n\ | |
4341 | passed to that primitive. For example, if you do\n\ | |
4342 | (file-exists-p FILENAME)\n\ | |
4343 | and FILENAME is handled by HANDLER, then HANDLER is called like this:\n\ | |
642ef245 JB |
4344 | (funcall HANDLER 'file-exists-p FILENAME)\n\ |
4345 | The function `find-file-name-handler' checks this list for a handler\n\ | |
4346 | for its argument."); | |
09121adc RS |
4347 | Vfile_name_handler_alist = Qnil; |
4348 | ||
d6a3cc15 | 4349 | DEFVAR_LISP ("after-insert-file-functions", &Vafter_insert_file_functions, |
246cfea5 RS |
4350 | "A list of functions to be called at the end of `insert-file-contents'.\n\ |
4351 | Each is passed one argument, the number of bytes inserted. It should return\n\ | |
4352 | the new byte count, and leave point the same. If `insert-file-contents' is\n\ | |
4353 | intercepted by a handler from `file-name-handler-alist', that handler is\n\ | |
d6a3cc15 RS |
4354 | responsible for calling the after-insert-file-functions if appropriate."); |
4355 | Vafter_insert_file_functions = Qnil; | |
4356 | ||
4357 | DEFVAR_LISP ("write-region-annotate-functions", &Vwrite_region_annotate_functions, | |
246cfea5 RS |
4358 | "A list of functions to be called at the start of `write-region'.\n\ |
4359 | Each is passed two arguments, START and END as for `write-region'. It should\n\ | |
4360 | return a list of pairs (POSITION . STRING) of strings to be effectively\n\ | |
4361 | inserted at the specified positions of the file being written (1 means to\n\ | |
4362 | insert before the first byte written). The POSITIONs must be sorted into\n\ | |
4363 | increasing order. If there are several functions in the list, the several\n\ | |
d6a3cc15 RS |
4364 | lists are merged destructively."); |
4365 | Vwrite_region_annotate_functions = Qnil; | |
4366 | ||
6fc6f94b RS |
4367 | DEFVAR_LISP ("write-region-annotations-so-far", |
4368 | &Vwrite_region_annotations_so_far, | |
4369 | "When an annotation function is called, this holds the previous annotations.\n\ | |
4370 | These are the annotations made by other annotation functions\n\ | |
4371 | that were already called. See also `write-region-annotate-functions'."); | |
4372 | Vwrite_region_annotations_so_far = Qnil; | |
4373 | ||
82c2d839 | 4374 | DEFVAR_LISP ("inhibit-file-name-handlers", &Vinhibit_file_name_handlers, |
268466ed | 4375 | "A list of file name handlers that temporarily should not be used.\n\ |
e3e86241 | 4376 | This applies only to the operation `inhibit-file-name-operation'."); |
82c2d839 RS |
4377 | Vinhibit_file_name_handlers = Qnil; |
4378 | ||
a65970a0 RS |
4379 | DEFVAR_LISP ("inhibit-file-name-operation", &Vinhibit_file_name_operation, |
4380 | "The operation for which `inhibit-file-name-handlers' is applicable."); | |
4381 | Vinhibit_file_name_operation = Qnil; | |
4382 | ||
e54d3b5d RS |
4383 | DEFVAR_LISP ("auto-save-list-file-name", &Vauto_save_list_file_name, |
4384 | "File name in which we write a list of all auto save file names."); | |
4385 | Vauto_save_list_file_name = Qnil; | |
4386 | ||
642ef245 | 4387 | defsubr (&Sfind_file_name_handler); |
570d7624 JB |
4388 | defsubr (&Sfile_name_directory); |
4389 | defsubr (&Sfile_name_nondirectory); | |
642ef245 | 4390 | defsubr (&Sunhandled_file_name_directory); |
570d7624 JB |
4391 | defsubr (&Sfile_name_as_directory); |
4392 | defsubr (&Sdirectory_file_name); | |
4393 | defsubr (&Smake_temp_name); | |
4394 | defsubr (&Sexpand_file_name); | |
4395 | defsubr (&Ssubstitute_in_file_name); | |
4396 | defsubr (&Scopy_file); | |
9bbe01fb | 4397 | defsubr (&Smake_directory_internal); |
aa734e17 | 4398 | defsubr (&Sdelete_directory); |
570d7624 JB |
4399 | defsubr (&Sdelete_file); |
4400 | defsubr (&Srename_file); | |
4401 | defsubr (&Sadd_name_to_file); | |
4402 | #ifdef S_IFLNK | |
4403 | defsubr (&Smake_symbolic_link); | |
4404 | #endif /* S_IFLNK */ | |
4405 | #ifdef VMS | |
4406 | defsubr (&Sdefine_logical_name); | |
4407 | #endif /* VMS */ | |
4408 | #ifdef HPUX_NET | |
4409 | defsubr (&Ssysnetunam); | |
4410 | #endif /* HPUX_NET */ | |
4411 | defsubr (&Sfile_name_absolute_p); | |
4412 | defsubr (&Sfile_exists_p); | |
4413 | defsubr (&Sfile_executable_p); | |
4414 | defsubr (&Sfile_readable_p); | |
4415 | defsubr (&Sfile_writable_p); | |
4416 | defsubr (&Sfile_symlink_p); | |
4417 | defsubr (&Sfile_directory_p); | |
b72dea2a | 4418 | defsubr (&Sfile_accessible_directory_p); |
f793dc6c | 4419 | defsubr (&Sfile_regular_p); |
570d7624 JB |
4420 | defsubr (&Sfile_modes); |
4421 | defsubr (&Sset_file_modes); | |
c24e9a53 RS |
4422 | defsubr (&Sset_default_file_modes); |
4423 | defsubr (&Sdefault_file_modes); | |
570d7624 JB |
4424 | defsubr (&Sfile_newer_than_file_p); |
4425 | defsubr (&Sinsert_file_contents); | |
4426 | defsubr (&Swrite_region); | |
d6a3cc15 | 4427 | defsubr (&Scar_less_than_car); |
570d7624 JB |
4428 | defsubr (&Sverify_visited_file_modtime); |
4429 | defsubr (&Sclear_visited_file_modtime); | |
f5d5eccf | 4430 | defsubr (&Svisited_file_modtime); |
570d7624 JB |
4431 | defsubr (&Sset_visited_file_modtime); |
4432 | defsubr (&Sdo_auto_save); | |
4433 | defsubr (&Sset_buffer_auto_saved); | |
b60247d9 | 4434 | defsubr (&Sclear_buffer_auto_save_failure); |
570d7624 JB |
4435 | defsubr (&Srecent_auto_save_p); |
4436 | ||
4437 | defsubr (&Sread_file_name_internal); | |
4438 | defsubr (&Sread_file_name); | |
85ffea93 | 4439 | |
483a2e10 | 4440 | #ifdef unix |
85ffea93 | 4441 | defsubr (&Sunix_sync); |
483a2e10 | 4442 | #endif |
570d7624 | 4443 | } |