| blob | 7575948b9db25115dcf4d20736851cafd337718b |
1 ;;; files.el --- file input and output commands for Emacs
3 ;; Copyright (C) 1985, 1986, 1987, 1992, 1993, 1994, 1995, 1996,
4 ;; 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
5 ;; 2006, 2007 Free Software Foundation, Inc.
7 ;; Maintainer: FSF
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 3, or (at your option)
14 ;; any later version.
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 ;; Boston, MA 02110-1301, USA.
26 ;;; Commentary:
28 ;; Defines most of Emacs's file- and directory-handling functions,
29 ;; including basic file visiting, backup generation, link handling,
30 ;; ITS-id version control, load- and write-hook handling, and the like.
32 ;;; Code:
38 "Backups of edited data files."
42 "Finding files."
47 "Non-nil means delete auto-save file when a buffer is saved or killed.
49 Note that the auto-save file will not be deleted if the buffer is killed
50 when it has unsaved changes."
55 nil
56 "Alist of abbreviations for file directories.
57 A list of elements of the form (FROM . TO), each meaning to replace
58 FROM with TO when it appears in a directory name. This replacement is
59 done when setting up the default directory of a newly visited file.
60 *Every* FROM string should start with `^'.
62 FROM and TO should be equivalent names, which refer to the
63 same directory. Do not use `~' in the TO strings;
64 they should be ordinary absolute directory names.
66 Use this feature when you have directories which you normally refer to
67 via absolute symbolic links. Make TO the name of the link, and FROM
68 the name it is linked to."
76 ;; Turn off backup files on VMS since it has version numbers.
78 "Non-nil means make a backup of a file the first time it is saved.
79 This can be done by renaming the file or by copying.
81 Renaming means that Emacs renames the existing file so that it is a
82 backup file, then writes the buffer into a new file. Any other names
83 that the old file had will now refer to the backup file. The new file
84 is owned by you and its group is defaulted.
86 Copying means that Emacs copies the existing file into the backup
87 file, then writes the buffer on top of the existing file. Any other
88 names that the old file had will now refer to the new (edited) file.
89 The file's owner and group are unchanged.
91 The choice of renaming or copying is controlled by the variables
92 `backup-by-copying', `backup-by-copying-when-linked',
93 `backup-by-copying-when-mismatch' and
94 `backup-by-copying-when-privileged-mismatch'. See also `backup-inhibited'."
98 ;; Do this so that local variables based on the file name
99 ;; are not overridden by the major mode.
101 "Non-nil means don't make a backup, regardless of the other parameters.
102 This variable is intended for use by making it local to a buffer.
107 "Non-nil means always use copying to create backup files.
108 See documentation of variable `make-backup-files'."
113 "Non-nil means use copying to create backups for files with multiple names.
114 This causes the alternate names to refer to the latest version as edited.
115 This variable is relevant only if `backup-by-copying' is nil."
120 "Non-nil means create backups by copying if this preserves owner or group.
121 Renaming may still be used (subject to control of other variables)
122 when it would not result in changing the owner or group of the file;
123 that is, for files which are owned by you and whose group matches
124 the default for a new file created there by you.
125 This variable is relevant only if `backup-by-copying' is nil."
130 "Non-nil means create backups by copying to preserve a privileged owner.
131 Renaming may still be used (subject to control of other variables)
132 when it would not result in changing the owner of the file or if the owner
133 has a user id greater than the value of this variable. This is useful
134 when low-numbered uid's are used for special system users (such as root)
135 that must maintain ownership of certain files.
136 This variable is relevant only if `backup-by-copying' and
137 `backup-by-copying-when-mismatch' are nil."
142 "Predicate that looks at a file name and decides whether to make backups.
146 "Non-nil in a buffer means always offer to save buffer on exit.
147 Do so even if the buffer is not visiting a file.
148 Automatically local in all buffers."
154 "Non-nil means find a file under alternative names, in existing buffers.
155 This means if any existing buffer is visiting the file you want
156 under another name, you get the existing buffer instead of a new buffer."
161 "*Non-nil means visit a file under its truename.
162 The truename of a file is found by chasing all links
163 both at the file level and at the levels of the containing directories."
169 "Specify which files should be reverted without query.
170 The value is a list of regular expressions.
171 If the file name matches one of these regular expressions,
172 then `revert-buffer' reverts the file without querying
173 if the file has changed on disk and you have not edited the buffer."
178 "The device number and file number of the file visited in the current buffer.
179 The value is a list of the form (FILENUM DEVNUM).
180 This pair of numbers uniquely identifies the file.
200 "The directory for writing temporary files."
206 "The directory for writing small temporary files.
207 If non-nil, this directory is used instead of `temporary-file-directory'
208 by programs that create small temporary files. This is for systems that
209 have fast storage with limited space, such as a RAM disk."
213 ;; The system null device. (Should reference NULL_DEVICE from C.)
240 "Non-nil means protect against I/O errors while saving files.
241 Some modes set this non-nil in particular buffers.
243 This feature works by writing the new contents into a temporary file
244 and then renaming the temporary file to replace the original.
245 In this way, any I/O error in writing leaves the original untouched,
246 and there is never any instant where the file is nonexistent.
248 Note that this feature forces backups to be made by copying.
249 Yet, at the same time, saving a precious file
250 breaks any hard links between it and other files."
255 "Control use of version numbers for backup files.
256 When t, make numeric backup versions unconditionally.
257 When nil, make them for files that have some already.
258 The value `never' means do not make them."
268 "When cleaning directory, number of versions to keep."
274 "If t, delete excess backup versions silently.
275 If nil, ask confirmation. Any other value prevents any trimming."
282 "Number of oldest versions to keep when a new numbered backup is made."
288 "Number of newest versions to keep when a new numbered backup is made.
289 Includes the new backup. Must be > 0"
295 "Whether to add a newline automatically at the end of the file.
297 A value of t means do this only when the file is about to be saved.
298 A value of `visit' means do this right after the file is visited.
299 A value of `visit-save' means do it at both of those times.
300 Any other non-nil value means ask user whether to add a newline, when saving.
301 A value of nil means don't add newlines.
303 Certain major modes set this locally to the value obtained
304 from `mode-require-final-newline'."
313 "Whether to add a newline at end of file, in certain major modes.
314 Those modes set `require-final-newline' to this value when you enable them.
315 They do so because they are often used for files that are supposed
316 to end in newlines, and the question is how to arrange that.
318 A value of t means do this only when the file is about to be saved.
319 A value of `visit' means do this right after the file is visited.
320 A value of `visit-save' means do it at both of those times.
321 Any other non-nil value means ask user whether to add a newline, when saving.
323 A value of nil means do not add newlines. That is a risky choice in this
324 variable since this value is used for modes for files that ought to have
325 final newlines. So if you set this to nil, you must explicitly check and
326 add a final newline, whenever you save a file that really needs one."
336 "Non-nil says by default do auto-saving of every file-visiting buffer."
341 "Non-nil says auto-save a buffer in the file it is visiting, when practical.
342 Normally auto-save files are written under other names."
348 ;; Don't put "\\2" inside expand-file-name, since it will be
349 ;; transformed to "/2" on DOS/Windows.
351 "Transforms to apply to buffer file name before making auto-save file name.
352 Each transform is a list (REGEXP REPLACEMENT UNIQUIFY):
353 REGEXP is a regular expression to match against the file name.
354 If it matches, `replace-match' is used to replace the
355 matching part with REPLACEMENT.
356 If the optional element UNIQUIFY is non-nil, the auto-save file name is
357 constructed by taking the directory part of the replaced file-name,
358 concatenated with the buffer file name with all directory separators
359 changed to `!' to prevent clashes. This will not work
360 correctly if your filesystem truncates the resulting name.
362 All the transforms in the list are tried, in the order they are listed.
363 When one transform applies, its result is final;
364 no further transforms are tried.
366 The default value is set up to put the auto-save file into the
367 temporary directory (see the variable `temporary-file-directory') for
368 editing a remote file.
370 On MS-DOS filesystems without long names this variable is always
371 ignored."
378 "Non-nil means save word abbrevs too when files are saved.
379 If `silently', don't ask the user before saving."
384 "Non-nil means allow `find-file' to visit directories.
385 To visit the directory, `find-file' runs `find-directory-functions'."
390 "List of functions to try in sequence to visit a directory.
391 Each function is called with the directory name as the sole argument
392 and should return either a buffer or nil."
396 ;;;It is not useful to make this a local variable.
397 ;;;(put 'find-file-not-found-hooks 'permanent-local t)
399 "List of functions to be called for `find-file' on nonexistent file.
400 These functions are called as soon as the error is detected.
401 Variable `buffer-file-name' is already set up.
406 ;;;It is not useful to make this a local variable.
407 ;;;(put 'find-file-hooks 'permanent-local t)
409 "List of functions to be called after a buffer is loaded from a file.
410 The buffer's local variables (if any) will have been processed before the
411 functions are called."
419 "List of functions to be called before writing out a buffer to a file.
420 If one of them returns non-nil, the file is considered already written
421 and the rest are not called.
422 These hooks are considered to pertain to the visited file.
423 So any buffer-local binding of this variable is discarded if you change
425 change the major mode.
427 This hook is not run if any of the functions in
428 `write-contents-functions' returns non-nil. Both hooks pertain
429 to how to save a buffer to file, for instance, choosing a suitable
430 coding system and setting mode bits. (See Info
431 node `(elisp)Saving Buffers'.) To perform various checks or
442 "List of functions to be called before writing out a buffer to a file.
443 If one of them returns non-nil, the file is considered already written
444 and the rest are not called and neither are the functions in
445 `write-file-functions'.
447 This variable is meant to be used for hooks that pertain to the
448 buffer's contents, not to the particular visited file; thus,
449 `set-visited-file-name' does not clear this variable; but changing the
450 major mode does clear it.
452 For hooks that _do_ pertain to the particular visited file, use
453 `write-file-functions'. Both this variable and
454 `write-file-functions' relate to how a buffer is saved to file.
455 To perform various checks or updates before the buffer is saved,
462 "Control use of local variables in files you visit.
463 The value can be t, nil, :safe, :all, or something else.
465 A value of t means file local variables specifications are obeyed
466 if all the specified variable values are safe; if any values are
467 not safe, Emacs queries you, once, whether to set them all.
468 \(When you say yes to certain values, they are remembered as safe.)
470 :safe means set the safe variables, and ignore the rest.
471 :all means set all variables, whether safe or not.
472 (Don't set it permanently to :all.)
473 A value of nil means always ignore the file local variables.
475 Any other value means always query you once whether to set them all.
476 \(When you say yes to certain values, they are remembered as safe, but
479 This variable also controls use of major modes specified in
480 a -*- line.
483 always obeys file local variable specifications and the -*- line,
484 and ignores this variable."
493 "Like `enable-local-variables' but meant for buffer-local bindings.
494 The meaningful values are nil and non-nil. The default is non-nil.
495 If a major mode sets this to nil, buffer-locally, then any local
496 variables list in the file will be ignored.
498 This variable does not affect the use of major modes
503 The value can be t, nil or something else.
504 A value of t means obey `eval' variables;
505 A value of nil means ignore them; anything else means query."
511 ;; Avoid losing in versions where CLASH_DETECTION is disabled.
520 "Non-nil means buffers visiting files read-only do so in view mode.
521 In fact, this means that all read-only buffers normally have
522 View mode enabled, including buffers that are read-only because
523 you visit a file you cannot alter, and buffers you make read-only
530 \f
533 "Provides support for ange-ftp host name completion.
534 Runs the usual ange-ftp hook, but only for completion operations."
535 ;; Having this here avoids the need to load ange-ftp when it's not
536 ;; really in use.
542 inhibit-file-name-handlers)))
547 "Convert a standard file's name to something suitable for the OS.
548 This means to guarantee valid names and perhaps to canonicalize
549 certain patterns.
551 FILENAME should be an absolute file name since the conversion rules
552 sometimes vary depending on the position in the file name. E.g. c:/foo
553 is a valid DOS file name, but c:/bar/c:/foo is not.
555 This function's standard definition is trivial; it just returns
556 the argument. However, on Windows and DOS, replace invalid
557 characters. On DOS, make sure to obey the 8.3 limitations.
558 In the native Windows build, turn Cygwin names into native names,
559 and also turn slashes into backslashes if the shell requires it (see
560 `w32-shell-dos-semantics').
562 See Info node `(elisp)Standard File Names' for more details."
566 ;; Replace invalid filename characters with !
570 name)
571 filename))
574 "Read directory name, prompting with PROMPT and completing in directory DIR.
575 Value is not expanded---you must call `expand-file-name' yourself.
576 Default name to DEFAULT-DIRNAME if user exits with the same
577 non-empty string that was inserted by this function.
578 (If DEFAULT-DIRNAME is omitted, DIR combined with INITIAL is used,
579 or just DIR if INITIAL is nil.)
580 If the user exits with an empty minibuffer, this function returns
581 an empty string. (This can only happen if the user erased the
582 pre-inserted contents or if `insert-default-directory' is nil.)
583 Fourth arg MUSTMATCH non-nil means require existing directory's name.
584 Non-nil and non-t means also require confirmation after completion.
585 Fifth arg INITIAL specifies text to start with.
586 DIR should be an absolute directory name. It defaults to
587 the value of `default-directory'."
592 dir))
593 mustmatch initial
596 \f
598 "Show the current default directory."
603 "Value of the CDPATH environment variable, as a list.
607 "Explode a search path into a list of directory names.
608 Directories are separated by occurrences of `path-separator'
609 \(which is colon in GNU and GNU-like systems)."
610 ;; We could use split-string here.
618 nil
623 cd-list)))
626 "Change current directory to given absolute file name DIR."
627 ;; Put the name into directory syntax now,
628 ;; because otherwise expand-file-name may give some bad results.
641 "Make DIR become the current buffer's default directory.
642 If your environment includes a `CDPATH' variable, try each one of
643 that list of directories (separated by occurrences of
644 `path-separator') when resolving a relative directory name.
645 The path separator is colon in GNU and GNU-like systems."
648 default-directory default-directory
664 cd-path)
665 nil))
669 "Load the Lisp file named FILE."
670 ;; This is a case where .elc makes a lot of sense.
677 "Search for FILENAME through PATH.
678 If found, return the absolute file name of FILENAME, with its suffixes;
679 otherwise return nil.
680 PATH should be a list of directories to look in, like the lists in
681 `exec-path' or `load-path'.
682 If SUFFIXES is non-nil, it should be a list of suffixes to append to
685 If non-nil, PREDICATE is used instead of `file-readable-p'.
686 PREDICATE can also be an integer to pass to the `access' system call,
687 in which case file-name handlers are ignored. This usage is deprecated.
689 For compatibility, PREDICATE can also be one of the symbols
690 `executable', `readable', `writable', or `exists', or a list of
691 one or more of those symbols."
702 "Do completion for file names passed to `locate-file'.
703 PATH-AND-SUFFIXES is a pair of lists, (DIRECTORIES . SUFFIXES)."
726 "Look up the directory hierarchy from FILE for a file matching REGEXP."
731 ;; Abbreviate, so as to stop when we cross ~/.
733 files)
734 ;; As a heuristic, we stop looking up the hierarchy of directories as
735 ;; soon as we find a directory belonging to another user. This should
736 ;; save us from looking in things like /net and /afs. This assumes
737 ;; that all the files inside a project belong to the same user.
745 nil)))
748 "Search for COMMAND in `exec-path' and return the absolute file name.
749 Return nil if COMMAND is not found anywhere in `exec-path'."
750 ;; Use 1 rather than file-executable-p to better match the behavior of
751 ;; call-process.
755 "Load the library named LIBRARY.
756 This is an interface to the function `load'."
759 'locate-file-completion
764 "Test whether FILE specifies a location on a remote system.
765 Return an identification of the system if the location is indeed
766 remote. The identification of the system may comprise a method
767 to access the system and its hostname, amongst other things.
772 IDENTIFICATION specifies which part of the identification shall
773 be returned as string. IDENTIFICATION can be the symbol
774 `method', `user' or `host'; any other value is handled like nil
775 and means to return the complete identification string.
777 If CONNECTED is non-nil, the function returns an identification only
778 if FILE is located on a remote system, and a connection is established
779 to that remote system.
781 `file-remote-p' will never open a connection on its own."
785 nil)))
788 "Copy the file FILE into a temporary file on this machine.
789 Returns the name of the local copy, or nil, if FILE is directly
790 accessible."
791 ;; This formerly had an optional BUFFER argument that wasn't used by
792 ;; anything.
796 nil)))
799 "Return the truename of FILENAME, which should be absolute.
800 The truename of a file name is found by chasing symbolic links
801 both at the level of the file and at the level of the directories
802 containing it, until no links are left at any level.
805 ;; COUNTER and PREV-DIRS are only used in recursive calls.
806 ;; COUNTER can be a cons cell whose car is the count of how many
807 ;; more links to chase before getting an error.
808 ;; PREV-DIRS can be a cons cell whose car is an alist
809 ;; of truenames we've just recently computed.
823 ;; For speed, remove the ange-ftp completion handler from the list.
824 ;; We know it's not needed here.
825 ;; For even more speed, do this only on the outermost call.
832 ;; andrewi@harlequin.co.uk - none of the following code (except for
833 ;; invoking the file-name handler) currently applies on Windows
834 ;; (ie. there are no native symlinks), but there is an issue with
835 ;; case differences being ignored by the OS, and short "8.3 DOS"
836 ;; name aliases existing for all files. (The short names are not
837 ;; reported by directory-files, but can be used to refer to files.)
838 ;; It seems appropriate for file-truename to resolve these issues in
839 ;; the most natural way, which on Windows is to call the function
840 ;; `w32-long-file-name' - this returns the exact name of a file as
841 ;; it is stored on disk (expanding short name aliases with the full
842 ;; name in the process).
845 ;; For file name that has a special handler, call handler.
846 ;; This is so that ange-ftp can save time by doing a no-op.
849 ;; If filename contains a wildcard, newname will be the old name.
851 ;; If filename exists, use the long name
855 ;; If this file directly leads to a link, process that iteratively
856 ;; so that we don't use lots of stack.
862 ;; For file name that has a special handler, call handler.
863 ;; This is so that ange-ftp can save time by doing a no-op.
866 done t)
868 target dirfile)
869 ;; Get the truename of the directory.
871 ;; If these are equal, we have the (or a) root directory.
873 ;; If this is the same dir we last got the truename for,
874 ;; save time--don't recalculate.
884 done t)
887 done t)
888 ;; Put it back on the file name.
890 ;; Is the file name the name of a link?
893 ;; Yes => chase that link, then start all over
894 ;; since the link may point to a directory name that uses links.
895 ;; We can't safely use expand-file-name here
896 ;; since target might look like foo/../bar where foo
897 ;; is itself a link. Instead, we handle . and .. above.
900 target
902 done nil)
903 ;; No, we are done!
905 filename))
908 "Chase links in FILENAME until a name that is not a link.
909 Unlike `file-truename', this does not check whether a parent
910 directory name is a symbolic link.
911 If the optional argument LIMIT is a number,
912 it means chase no more than that many links and then stop."
920 ;; In the context of a link, `//' doesn't mean what Emacs thinks.
923 ;; Handle `..' by hand, since it needs to work in the
924 ;; target of any directory symlink.
925 ;; This code is not quite complete; it does not handle
926 ;; embedded .. in some cases such as ./../foo and foo/bar/../../../lose.
930 ;; Chase links in the default dir of the symlink.
934 ;; Now find the parent of that dir.
938 newname))
941 "Create a temporary file.
942 The returned file name (created by appending some random characters at the end
943 of PREFIX, and expanding against `temporary-file-directory' if necessary),
944 is guaranteed to point to a newly created empty file.
945 You can then use `write-region' to write new data into the file.
947 If DIR-FLAG is non-nil, create a new empty directory instead of a file.
949 If SUFFIX is non-nil, add that at the end of the file name."
951 file)
954 ;; Create temp files with strict access rights. It's easy to
955 ;; loosen them later, whereas it's impossible to close the
956 ;; time-window of loose permissions otherwise.
968 nil)
970 ;; the file was somehow created by someone else between
971 ;; `make-temp-name' and `write-region', let's try again.
972 nil)
973 file)
974 ;; Reset the umask.
978 "Change the encoding of FILE's name from CODING to NEW-CODING.
979 The value is a new name of FILE.
980 Signals a `file-already-exists' error if a file of the new name
981 already exists unless optional fourth argument OK-IF-ALREADY-EXISTS
982 is non-nil. A number as fourth arg means request confirmation if
983 the new name already exists. This is what happens in interactive
984 use with M-x."
987 default-file-name-coding-system))
989 from-coding to-coding)
991 ;; We provide the default coding only when it seems that
992 ;; the filename is correctly decoded by the default
993 ;; coding.
999 filename default-coding)
1000 default-coding))
1004 ;; We provide the default coding only when a user is going to
1005 ;; change the encoding not from the default coding.
1009 filename from-coding)))
1012 filename from-coding default-coding)
1013 default-coding)))
1017 default-file-name-coding-system))
1018 ;; FILE should have been decoded by DEFAULT-CODING.
1022 ;; Suppress further encoding.
1027 newname))
1028 \f
1030 "Select buffer BUFFER in another window.
1031 If BUFFER does not identify an existing buffer, then this function
1032 creates a buffer with that name.
1034 When called from Lisp, BUFFER can be a buffer, a string \(a buffer name),
1035 or nil. If BUFFER is nil, then this function chooses a buffer
1036 using `other-buffer'.
1037 Optional second arg NORECORD non-nil means
1038 do not put this buffer at the front of the list of recently selected ones.
1039 This function returns the buffer it switched to.
1041 This uses the function `display-buffer' as a subroutine; see its
1042 documentation for additional customization information."
1045 ;; Don't let these interfere.
1046 same-window-buffer-names same-window-regexps)
1050 "Switch to buffer BUFFER in another frame.
1051 Optional second arg NORECORD non-nil means
1052 do not put this buffer at the front of the list of recently selected ones.
1054 This uses the function `display-buffer' as a subroutine; see its
1055 documentation for additional customization information."
1058 same-window-buffer-names same-window-regexps)
1063 "Switch to buffer BUFFER in another frame.
1064 This uses the function `display-buffer' as a subroutine; see its
1065 documentation for additional customization information."
1068 same-window-buffer-names same-window-regexps
1070 new-window)
1080 "Add FUN to `minibuffer-setup-hook' while executing BODY.
1081 BODY should use the minibuffer at most once.
1082 Recursive uses of the minibuffer will not be affected."
1088 ;; Clear out this hook so it does not interfere
1089 ;; with any recursive minibuffer usage.
1099 "If non-nil, `find-file' requires confirmation before visiting a new file."
1111 t))
1114 "Edit file FILENAME.
1115 Switch to a buffer visiting file FILENAME,
1116 creating one if none already exists.
1117 Interactively, the default if you just type RET is the current directory,
1118 but the visited file name is available through the minibuffer history:
1119 type M-n to pull it into the minibuffer.
1121 You can visit files on remote machines by specifying something
1122 like /ssh:SOME_REMOTE_MACHINE:FILE for the file name. You can
1123 also visit local files as a different user by specifying
1124 /sudo::FILE for the file name.
1125 See the Info node `(tramp)Filename Syntax' in the Tramp Info
1126 manual, for more about this.
1128 Interactively, or if WILDCARDS is non-nil in a call from Lisp,
1129 expand wildcards (if any) and visit multiple files. You can
1130 suppress wildcard expansion by setting `find-file-wildcards' to nil.
1132 To visit a file without any kind of conversion and without
1143 "Edit file FILENAME, in another window.
1146 an existing one. See the function `display-buffer'.
1148 Interactively, the default if you just type RET is the current directory,
1149 but the visited file name is available through the minibuffer history:
1150 type M-n to pull it into the minibuffer.
1152 Interactively, or if WILDCARDS is non-nil in a call from Lisp,
1153 expand wildcards (if any) and visit multiple files."
1166 "Edit file FILENAME, in another frame.
1169 an existing one. See the function `display-buffer'.
1171 Interactively, the default if you just type RET is the current directory,
1172 but the visited file name is available through the minibuffer history:
1173 type M-n to pull it into the minibuffer.
1175 Interactively, or if WILDCARDS is non-nil in a call from Lisp,
1176 expand wildcards (if any) and visit multiple files."
1189 "Edit the existing file FILENAME.
1191 file names with wildcards."
1199 "Edit file FILENAME but don't allow changes.
1213 value))
1216 "Edit file FILENAME in another window but don't allow changes.
1230 value))
1233 "Edit file FILENAME in another frame but don't allow changes.
1247 value))
1250 "Find file FILENAME as a replacement for the file in the next window.
1251 This command does not select that window.
1255 Interactively, or if WILDCARDS is non-nil in a call from Lisp,
1256 expand wildcards (if any) and replace the file with multiple files."
1268 t))))
1276 "Find file FILENAME, select its buffer, kill previous buffer.
1277 If the current buffer now contains an empty file that you just visited
1278 \(presumably by mistake), use this command to visit the file you really want.
1282 Interactively, or if WILDCARDS is non-nil in a call from Lisp,
1283 expand wildcards (if any) and replace the file with multiple files.
1285 If the current buffer is an indirect buffer, or the base buffer
1286 for one or more indirect buffers, the other buffer(s) are not
1287 killed."
1297 t)))
1318 ;; This prevents us from finding the same buffer
1319 ;; if we specified the same file again.
1323 ;; Likewise for dired buffers.
1327 ;; This executes if find-file gets an error
1328 ;; and does not really find anything.
1329 ;; We put things back as they were.
1330 ;; If find-file actually finds something, we kill obuf below.
1339 ;; We already asked; don't ask again.
1342 \f
1344 "Create a suitably named buffer for visiting FILENAME, and return it.
1345 FILENAME (sans directory) is used unchanged if that name is free;
1346 otherwise a string <2> or <3> or ... is appended to get an unused name.
1347 Spaces at the start of FILENAME (sans directory) are removed."
1356 "Create and return a buffer with a name based on NAME.
1357 Choose the buffer's name using `generate-new-buffer-name'."
1361 "Regexp to match the automounter prefix in a directory name."
1369 "Return a version of FILENAME shortened using `directory-abbrev-alist'.
1371 home directory is a root directory) and removes automounter prefixes
1372 \(see the variable `automount-dir-prefix')."
1373 ;; Get rid of the prefixes added by the automounter.
1381 ;; If any elt of directory-abbrev-alist matches this name,
1382 ;; abbreviate accordingly.
1388 ;; Compute and save the abbreviated homedir name.
1389 ;; We defer computing this until the first time it's needed, to
1390 ;; give time for directory-abbrev-alist to be set properly.
1391 ;; We include a slash at the end, to avoid spurious matches
1392 ;; such as `/usr/foobar' when the home dir is `/usr/foo'.
1399 ;; If FILENAME starts with the abbreviated homedir,
1400 ;; make it start with `~' instead.
1402 ;; If the home dir is just /, don't change it.
1405 ;; MS-DOS root directories can come with a drive letter;
1406 ;; Novell Netware allows drive letters beyond `Z:'.
1416 filename)))
1419 "List of logical names for which visiting shouldn't save the true dirname.
1420 On VMS, when you visit a file using a logical name that searches a path,
1421 you may or may not want the visited file name to record the specific
1422 directory where the file was found. If you *do not* want that, add the logical
1423 name to this list as a string."
1428 "Return the buffer visiting file FILENAME (a string).
1429 This is like `get-file-buffer', except that it checks for any buffer
1430 visiting the same file, possibly under a different name.
1431 If PREDICATE is non-nil, only buffers satisfying it are eligible,
1432 and others are ignored.
1433 If there is no such live buffer, return nil."
1447 found)
1457 ;; Verify this buffer's file number
1458 ;; still belongs to its file.
1461 attributes)
1465 found))))
1466 \f
1468 "Non-nil means file-visiting commands should handle wildcards.
1469 For example, if you specify `*.c', that would visit all the files
1470 whose names match the pattern."
1476 "Non-nil means suppress warning messages for symlinked files.
1477 When nil, Emacs prints a warning when visiting a file that is already
1478 visited, but with a different name. Setting this option to t
1479 suppresses this warning."
1485 "Maximum size of file above which a confirmation is requested.
1486 When nil, never request confirmation."
1493 "Read file FILENAME into a buffer and return the buffer.
1494 If a buffer exists visiting FILENAME, return that one, but
1495 verify that the file has not changed since visited or saved.
1496 The buffer is not selected, just returned to the caller.
1497 Optional second arg NOWARN non-nil means suppress any warning messages.
1498 Optional third arg RAWFILE non-nil means the file is read literally.
1499 Optional fourth arg WILDCARDS non-nil means do wildcard processing
1500 and visit all the matching files. When wildcards are actually
1501 used and expanded, return a list of buffers that are visiting
1502 the various files."
1509 'find-directory-functions
1512 filename)))
1515 find-file-wildcards
1529 ;; Find any buffer for a file which has same truename.
1531 ;; Let user know if there is a buffer with the same truename.
1535 find-file-suppress-same-file-warnings
1539 ;; Optionally also find that buffer.
1542 ;; Check to see if the file looks uncommonly large.
1544 ;; Don't ask again if we already have the file or
1545 ;; if we're asked to be quiet.
1554 ;; We are using an existing buffer.
1561 ;; Certain files should be reverted automatically
1562 ;; if they have changed on disk and not in the buffer.
1570 found))
1580 "File %s changed on disk. Discard your edits? "
1585 "File %s changed on disk. Discard your edits in %s? "
1593 ;; Check if a formerly read-only file has become
1594 ;; writable and vice versa, but if the buffer agrees
1595 ;; with the new state of the file, that is ok too.
1603 buffer-file-name
1612 ;; It is confusing to ask whether to visit
1613 ;; non-literally if they have the file in
1614 ;; hexl-mode.
1620 "The file %s is already visited normally,
1621 and you have edited the buffer. Now you have asked to visit it literally,
1622 meaning no coding system handling, format conversion, or local variables.
1623 Emacs can only visit a file in one way at a time.
1625 Do you want to save the file, and visit it literally instead? "
1626 "The file %s is already visited literally,
1627 meaning no coding system handling, format conversion, or local variables.
1628 You have edited the buffer. Now you have asked to visit the file normally,
1629 but Emacs can only visit a file in one way at a time.
1636 rawfile truename number))
1640 "\
1641 Do you want to discard your changes, and visit the file literally now? "
1642 "\
1645 rawfile truename number)
1651 "The file %s is already visited normally.
1652 You have asked to visit it literally,
1653 meaning no coding system decoding, format conversion, or local variables.
1654 But Emacs can only visit a file in one way at a time.
1656 Do you want to revisit the file literally now? "
1657 "The file %s is already visited literally,
1658 meaning no coding system decoding, format conversion, or local variables.
1659 You have asked to visit it normally,
1660 but Emacs can only visit a file in one way at a time.
1665 rawfile truename number)
1668 ;; Return the buffer we are using.
1669 buf)
1670 ;; Create a new buffer.
1672 ;; find-file-noselect-1 may use a different buffer.
1674 rawfile truename number))))))
1680 ;; Needed in case we are re-visiting the file with a different
1681 ;; text representation.
1698 filename)))
1699 ;; Unconditionally set error
1709 filename)))
1710 ;; Run find-file-not-found-functions until one returns non-nil.
1712 ;; If they fail too, set error.
1714 ;; Record the file's truename, and maybe use that as visited name.
1720 ;; On VMS, we may want to remember which directory in a search list
1721 ;; the file was found in.
1731 ;; Set buffer's default directory to that of the file.
1733 ;; Turn off backup files for certain file names. Since
1734 ;; this is a permanent local, the major mode won't eliminate it.
1749 \f
1751 "Like `insert-file-contents', but only reads in the file literally.
1752 A buffer may be modified in several ways after reading into the buffer,
1753 to Emacs features such as format decoding, character code
1754 conversion, `find-file-hook', automatic uncompression, etc.
1756 This function ensures that none of these modifications will take place."
1764 nil))
1767 inhibit-file-name-handlers))
1780 filename)))
1790 "Insert contents of file FILENAME into buffer after point with no conversion.
1792 This function is meant for the user to run interactively.
1793 Don't call it from programs! Use `insert-file-contents-literally' instead.
1794 \(Its calling sequence is different; see its documentation)."
1799 "Non-nil if this buffer was made by `find-file-literally' or equivalent.
1804 "Visit file FILENAME with no conversion of any kind.
1805 Format conversion and character code conversion are both disabled,
1806 and multibyte characters are disabled in the resulting buffer.
1807 The major mode used is Fundamental mode regardless of the file name,
1808 and local variable specifications in the file are ignored.
1809 Automatic uncompression and adding a newline at the end of the
1810 file due to `require-final-newline' is also disabled.
1812 You cannot absolutely rely on this function to result in
1813 visiting the file literally. If Emacs already has a buffer
1814 which is visiting the file, you get the existing buffer,
1815 regardless of whether it was created literally or not.
1817 In a Lisp program, if you want to be sure of accessing a file's
1818 contents literally, you should create a temporary buffer and then read
1819 the file contents into it using `insert-file-contents-literally'."
1822 \f
1826 after-find-file-from-revert-buffer
1827 nomodes)
1828 "Called after finding a file and by the default revert function.
1829 Sets buffer mode, parses local variables.
1830 Optional args ERROR, WARN, and NOAUTO: ERROR non-nil means there was an
1831 error in reading the file. WARN non-nil means warn if there
1832 exists an auto-save file more recent than the visited file.
1833 NOAUTO means don't mess with auto-save mode.
1834 Fourth arg AFTER-FIND-FILE-FROM-REVERT-BUFFER non-nil
1835 means this call was from `revert-buffer'.
1836 Fifth arg NOMODES non-nil means don't alter the file's modes.
1837 Finishes by calling the functions in `find-file-hook'
1838 unless NOMODES is non-nil."
1841 nil
1851 ;; No need to warn if buffer is auto-saved
1852 ;; under the name of the visited file.
1854 auto-save-visited-file-name))
1857 buffer-file-name))
1877 ;; Make people do a little extra work (C-x C-q)
1878 ;; before altering a backup file.
1881 ;; When a file is marked read-only,
1882 ;; make the buffer read-only even if root is looking at it.
1890 ;; If requested, add a newline at the end of the file.
1900 view-read-only
1906 "Eval BODY and turn any error into a FORMAT message.
1907 FORMAT can have a %s escape which will be replaced with the actual error.
1908 If `debug-on-error' is set, errors are not caught, so that you can
1909 debug them.
1910 Avoid using a large BODY since it is duplicated."
1919 "Choose the major mode for this buffer automatically.
1920 Also sets up any specified local variables of the file.
1921 Uses the visited file name, the -*- line, and the local variables spec.
1923 This function is called automatically from `find-file'. In that case,
1924 we may set up the file-specified mode and local variables,
1925 depending on the value of `enable-local-variables'.
1926 In addition, if `local-enable-local-variables' is nil, we do
1927 not set local variables (though we do notice a mode specified with -*-.)
1929 `enable-local-variables' is ignored if you run `normal-mode' interactively,
1930 or from Lisp without specifying the optional argument FIND-FILE;
1931 in that case, this function acts as if `enable-local-variables' were t."
1939 ;; Turn font lock off and on, to make sure it takes account of
1940 ;; whatever file local variables are relevant to it.
1942 ;; Font-lock-mode (now in font-core.el) can be ON when
1943 ;; font-lock.el still hasn't been loaded.
1953 "Non-nil means to try second pass through `auto-mode-alist'.
1954 This means that if the first case-sensitive search through the alist fails
1955 to find a matching major mode, a second case-insensitive search is made.
1956 On systems with case-insensitive file names, this variable is ignored,
1957 since only a single case-insensitive search through the alist is made."
1963 ;; Note: The entries for the modes defined in cc-mode.el (c-mode,
1964 ;; c++-mode, java-mode and more) are added through autoload
1965 ;; directives in that file. That way is discouraged since it
1966 ;; spreads out the definition of the initial value.
1999 ;; Less common extensions come here
2000 ;; so more common ones above are found faster.
2039 ;; The list of archive file extensions should be in sync with
2040 ;; `auto-coding-alist' with `no-conversion' coding system.
2045 ;; Mailer puts message to be edited in
2046 ;; /tmp/Re.... or Message
2050 ;; some news reader is reported to use this
2058 ;; .emacs or .gnus or .viper following a directory delimiter in
2059 ;; Unix, MSDOG or VMS syntax.
2062 ;; _emacs following a directory delimiter
2063 ;; in MsDos syntax
2067 ;; Common Lisp ASDF package system.
2085 ;; Windows candidates may be opened case sensitively on Unix
2091 ;; *.cf, *.cfg, *.conf, *.config[.local|.de_DE.UTF8|...], */config
2093 ("\\`/etc/\\(?:DIR_COLORS\\|ethers\\|.?fstab\\|.*hosts\\|lesskey\\|login\\.?de\\(?:fs\\|vperm\\)\\|magic\\|mtab\\|pam\\.d/.*\\|permissions\\(?:\\.d/.+\\)?\\|protocols\\|rpc\\|services\\)\\'" . conf-space-mode)
2094 ("\\`/etc/\\(?:acpid?/.+\\|aliases\\(?:\\.d/.+\\)?\\|default/.+\\|group-?\\|hosts\\..+\\|inittab\\|ksysguarddrc\\|opera6rc\\|passwd-?\\|shadow-?\\|sysconfig/.+\\)\\'" . conf-mode)
2095 ;; ChangeLog.old etc. Other change-log-mode entries are above;
2096 ;; this has lower priority to avoid matching changelog.sgml etc.
2098 ;; either user's dot-files or under /etc or some such
2100 ;; alas not all ~/.*rc files are like this
2101 ("/\\.\\(?:enigma\\|gltron\\|gtk\\|hxplayer\\|net\\|neverball\\|qt/.+\\|realplayer\\|scummvm\\|sversion\\|sylpheed/.+\\|xmp\\)rc\\'" . conf-mode)
2106 ;; this contains everything twice, with space and with colon :-(
2108 ;; Get rid of any trailing .n.m and try again.
2109 ;; This is for files saved by cvs-merge that look like .#<file>.<rev>
2110 ;; or .#<file>.<rev>-<rev> or VC's <file>.~<rev>~.
2111 ;; Using mode nil rather than `ignore' would let the search continue
2112 ;; through this list (with the shortened name) rather than start over.
2114 ;; The following should come after the ChangeLog pattern
2115 ;; for the sake of ChangeLog.1, etc.
2116 ;; and after the .scm.[0-9] and CVS' <file>.<rev> patterns too.
2119 "Alist of filename patterns vs corresponding major mode functions.
2120 Each element looks like (REGEXP . FUNCTION) or (REGEXP FUNCTION NON-NIL).
2121 \(NON-NIL stands for anything that is not nil; the value does not matter.)
2122 Visiting a file whose name matches REGEXP specifies FUNCTION as the
2123 mode function to use. FUNCTION will be called, unless it is nil.
2125 If the element has the form (REGEXP FUNCTION NON-NIL), then after
2126 calling FUNCTION (if it's not nil), we delete the suffix that matched
2127 REGEXP and search the list again for another match.
2129 If the file name matches `inhibit-first-line-modes-regexps',
2130 then `auto-mode-alist' is not processed.
2132 The extensions whose FUNCTION is `archive-mode' should also
2133 appear in `auto-coding-alist' with `no-conversion' coding system.
2135 See also `interpreter-mode-alist', which detects executable script modes
2136 based on the interpreters they specify to run,
2140 ;; Note: The entries for the modes defined in cc-mode.el (awk-mode
2141 ;; and pike-mode) are added through autoload directives in that
2142 ;; file. That way is discouraged since it spreads out the
2143 ;; definition of the initial value.
2181 "Alist mapping interpreter names to major modes.
2182 This is used for files whose first lines match `auto-mode-interpreter-regexp'.
2183 Each element looks like (INTERPRETER . MODE).
2184 If INTERPRETER matches the name of the interpreter specified in the first line
2185 of a script, mode MODE is enabled.
2193 "List of regexps for what to ignore, for `inhibit-first-line-modes-regexps'.
2194 When checking `inhibit-first-line-modes-regexps', we first discard
2200 "Regexp matching interpreters, for file mode determination.
2201 This regular expression is matched against the first line of a file
2202 to determine the file's mode in `set-auto-mode'. If it matches, the file
2203 is assumed to be interpreted by the interpreter matched by the second group
2204 of the regular expression. The mode is then determined as the mode
2208 "Alist of buffer beginnings vs. corresponding major mode functions.
2209 Each element looks like (REGEXP . FUNCTION) or (MATCH-FUNCTION . FUNCTION).
2210 After visiting a file, if REGEXP matches the text at the beginning of the
2211 buffer, or calling MATCH-FUNCTION returns non-nil, `normal-mode' will
2212 call FUNCTION rather than allowing `auto-mode-alist' to decide the buffer's
2213 major mode.
2215 If FUNCTION is nil, then it is not called. (That is a way of saying
2221 ;; The < comes before the groups (but the first) to reduce backtracking.
2222 ;; TODO: UTF-16 <?xml may be preceded by a BOM 0xff 0xfe or 0xfe 0xff.
2223 ;; We use [ \t\r\n] instead of `\\s ' to make regex overflow less likely.
2227 comment-re "*"
2230 . html-mode)
2232 ;; These two must come after html, because they are more general:
2237 . sgml-mode)
2240 "Like `magic-mode-alist' but has lower priority than `auto-mode-alist'.
2241 Each element looks like (REGEXP . FUNCTION) or (MATCH-FUNCTION . FUNCTION).
2242 After visiting a file, if REGEXP matches the text at the beginning of the
2243 buffer, or calling MATCH-FUNCTION returns non-nil, `normal-mode' will
2244 call FUNCTION, provided that `magic-mode-alist' and `auto-mode-alist'
2245 have not specified a mode for this file.
2251 "Upper limit on `magic-mode-alist' regexp matches.
2255 "Select major mode appropriate for current buffer.
2257 To find the right major mode, this function checks for a -*- mode tag,
2258 checks if it uses an interpreter listed in `interpreter-mode-alist',
2259 matches the buffer beginning against `magic-mode-alist',
2260 compares the filename against the entries in `auto-mode-alist',
2261 then matches the buffer beginning against `magic-fallback-mode-alist'.
2263 It does not check for the `mode:' local variable in the
2264 Local Variables section of the file; for that, use `hack-local-variables'.
2266 If `enable-local-variables' is nil, this function does not check for a
2267 -*- mode tag.
2269 If the optional argument KEEP-MODE-IF-SAME is non-nil, then we
2270 set the major mode only if that would change it. In other words
2271 we don't actually set it to the same mode the buffer already has."
2272 ;; Look for -*-MODENAME-*- or -*- ... mode: MODENAME; ... -*-
2274 ;; Find a -*- mode tag
2281 ;; Find all specifications for the `mode:' variable
2282 ;; and execute them left to right.
2294 modes)))
2295 ;; Simple -*-MODE-*- case.
2298 modes))))
2299 ;; If we found modes to use, invoke them now, outside the save-excursion.
2307 ;; continuing would call minor modes again, toggling them off
2309 ;; If we didn't, look for an interpreter specified in the first line.
2310 ;; As a special case, allow for things like "#!/bin/env perl", which
2311 ;; finds the interpreter anywhere in $PATH.
2318 ;; Map interpreter name to a mode, signalling we're done at the
2319 ;; same time.
2321 interpreter-mode-alist))
2322 ;; If we found an interpreter mode to use, invoke it now.
2325 ;; Next try matching the buffer beginning against magic-mode-alist.
2339 ;; Next compare the filename against the entries in auto-mode-alist.
2344 ;; Remove remote file name identification.
2348 ;; Remove backup-suffixes from file name.
2351 ;; Find first matching alist entry.
2354 ;; System is case-insensitive.
2358 ;; System is case-sensitive.
2360 ;; First match case-sensitively.
2364 ;; Fallback to case-insensitive match.
2378 ;; Next try matching the buffer beginning against magic-fallback-mode-alist.
2393 ;; When `keep-mode-if-same' is set, we are working on behalf of
2394 ;; set-visited-file-name. In that case, if the major mode specified is the
2395 ;; same one we already have, don't actually reset it. We don't want to lose
2396 ;; minor modes such as Font Lock.
2398 "Apply MODE and return it.
2399 If optional arg KEEP-MODE-IF-SAME is non-nil, MODE is chased of
2400 any aliases and compared to current major mode. If they are the
2401 same, do nothing and return nil."
2407 mode)))
2410 "Find the -*- spec in the buffer.
2411 Call with point at the place to start searching from.
2412 If one is found, set point to the beginning
2413 and return the position of the end.
2414 Otherwise, return nil; point may be changed."
2417 ;; Don't look for -*- if this file name matches any
2418 ;; of the regexps in inhibit-first-line-modes-regexps.
2426 sufs)
2434 ;; If the file begins with "#!"
2435 ;; (exec interpreter magic), look
2436 ;; for mode frobs in the first two
2437 ;; lines. You cannot necessarily
2438 ;; put them in the first line of
2439 ;; such a file without screwing up
2440 ;; the interpreter invocation.
2441 ;; The same holds for
2442 ;; '\"
2443 ;; in man pages (preprocessor
2444 ;; magic for the `man' program).
2455 end))))
2456 \f
2457 ;;; Handling file local variables
2464 "Normal hook run after processing a file's local variables specs.
2465 Major modes can use this to examine user-specified local variables
2469 "List variable-value pairs that are considered safe.
2470 Each element is a cons cell (VAR . VAL), where VAR is a variable
2471 symbol and VAL is a value that is considered safe."
2476 "Expressions that are considered safe in an `eval:' local variable.
2477 Add expressions to this list if you want Emacs to evaluate them, when
2478 they appear in an `eval' local variable specification, without first
2479 asking you for confirmation."
2484 ;; Risky local variables:
2487 auto-mode-alist
2488 buffer-auto-save-file-name
2489 buffer-file-name
2490 buffer-file-truename
2491 buffer-undo-list
2492 dabbrev-case-fold-search
2493 dabbrev-case-replace
2494 debugger
2495 default-text-properties
2496 display-time-string
2497 enable-local-eval
2498 enable-local-variables
2499 eval
2500 exec-directory
2501 exec-path
2502 file-name-handler-alist
2503 font-lock-defaults
2504 format-alist
2505 frame-title-format
2506 global-mode-string
2507 header-line-format
2508 icon-title-format
2509 ignored-local-variables
2510 imenu--index-alist
2511 imenu-generic-expression
2512 inhibit-quit
2513 input-method-alist
2514 load-path
2515 max-lisp-eval-depth
2516 max-specpdl-size
2517 minor-mode-alist
2518 minor-mode-map-alist
2519 minor-mode-overriding-map-alist
2520 mode-line-buffer-identification
2521 mode-line-format
2522 mode-line-client
2523 mode-line-modes
2524 mode-line-modified
2525 mode-line-mule-info
2526 mode-line-position
2527 mode-line-process
2528 mode-line-remote
2529 mode-name
2530 outline-level
2531 overriding-local-map
2532 overriding-terminal-local-map
2533 parse-time-rules
2534 process-environment
2535 rmail-output-file-alist
2536 safe-local-variable-values
2537 safe-local-eval-forms
2538 save-some-buffers-action-alist
2539 special-display-buffer-names
2540 standard-input
2541 standard-output
2542 unread-command-events
2543 vc-mode))
2545 ;; Safe local variables:
2546 ;;
2547 ;; For variables defined by major modes, the safety declarations can go into
2548 ;; the major mode's file, since that will be loaded before file variables are
2549 ;; processed.
2550 ;;
2551 ;; For variables defined by minor modes, put the safety declarations in the
2552 ;; file defining the minor mode after the defcustom/defvar using an autoload
2553 ;; cookie, e.g.:
2554 ;;
2555 ;; ;;;###autoload(put 'variable 'safe-local-variable 'stringp)
2556 ;;
2557 ;; Otherwise, when Emacs visits a file specifying that local variable, the
2558 ;; minor mode file may not be loaded yet.
2559 ;;
2560 ;; For variables defined in the C source code the declaration should go here:
2576 "Get confirmation before setting up local variable values.
2577 ALL-VARS is the list of all variables to be set up.
2578 UNSAFE-VARS is the list of those that aren't marked as safe or risky.
2579 RISKY-VARS is the list of those that are marked as risky."
2581 nil
2586 prompt char)
2596 ", and variables that are risky (**)."
2603 y -- to apply the local variables list.
2607 ! -- to apply the local variables list, and permanently mark these
2619 ;; Make strings with embedded whitespace easier to read.
2627 ""
2634 done)
2643 ;; read-event returns -1 if we are in a kbd
2644 ;; macro and there are no more events in the
2645 ;; macro. In that case, attempt to get an
2646 ;; event interactively.
2654 ;; When this is called from desktop-restore-file-buffer,
2655 ;; coding-system-for-read may be non-nil. Reset it before
2656 ;; writing to .emacs.
2660 'safe-local-variable-values
2661 safe-local-variable-values))))
2668 "Return local variables specified in the -*- line.
2669 Ignore any specification for `mode:' and `coding:';
2670 `set-auto-mode' should already have handled `mode:',
2671 `set-auto-coding' should already have handled `coding:'.
2673 If MODE-ONLY is non-nil, all we do is check whether the major
2674 mode is specified, returning t if it is specified. Otherwise,
2675 return an alist of elements (VAR . VAL), where VAR is a variable
2676 and VAL is the specified value."
2680 result mode-specified)
2681 ;; Parse the -*- line into the RESULT alist.
2682 ;; Also set MODE-SPECIFIED if we see a spec or `mode'.
2684 nil)
2686 ;; Simple form: "-*- MODENAME -*-". Already handled.
2688 nil)
2690 ;; Hairy form: '-*-' [ <variable> ':' <value> ';' ]* '-*-'
2691 ;; (last ";" is optional).
2696 ;; There used to be a downcase here,
2697 ;; but the manual didn't say so,
2698 ;; and people want to set var names that aren't all lc.
2703 ;; It is traditional to ignore
2704 ;; case when checking for `mode' in set-auto-mode,
2705 ;; so we must do that here as well.
2706 ;; That is inconsistent, but we're stuck with it.
2707 ;; The same can be said for `coding' in set-auto-coding.
2713 'eval
2720 mode-specified
2721 result))))
2724 "Parse and put into effect this buffer's local variables spec.
2725 If MODE-ONLY is non-nil, all we do is check whether the major mode
2726 is specified, returning t if it is specified."
2729 result)
2732 ;; Look for "Local variables:" line in last page.
2740 ;; suffix is what comes after "local variables:" in its line.
2741 ;; prefix is what comes before "local variables:" in its line.
2751 beg)
2755 endpos
2761 nil t))
2771 ;; Discard the prefix.
2776 ;; Discard the suffix.
2784 ;; Find the variable name; strip whitespace.
2792 val)
2793 ;; Read the variable value.
2803 'eval
2809 ;; We've read all the local variables. Now, return whether the
2810 ;; mode is specified (if MODE-ONLY is non-nil), or set the
2811 ;; variables (if MODE-ONLY is nil.)
2813 result
2820 ;; Find those variables that we may want to save to
2821 ;; `safe-local-variable-values'.
2836 ;; If caller wants only the safe variables,
2837 ;; install only them.
2842 ;; Query, except in the case where all are known safe
2843 ;; if the user wants no quuery in that case.
2849 result unsafe-vars risky-vars))
2855 "Non-nil if SYM is safe as a file-local variable with value VAL.
2856 It is safe if any of these conditions are met:
2858 * There is a matching entry (SYM . VAL) in the
2859 `safe-local-variable-values' user option.
2861 * The `safe-local-variable' property of SYM is a function that
2862 evaluates to a non-nil value with VAL as an argument."
2868 "Non-nil if SYM could be dangerous as a file-local variable.
2869 It is dangerous if either of these conditions are met:
2871 * Its `risky-local-variable' property is non-nil.
2877 ;; If this is an alias, check the base name.
2897 "Return t if it is safe to eval EXP when it is found in a file."
2899 ;; Detect certain `put' expressions.
2905 ;; Only allow safe values of lisp-indent-hook;
2906 ;; not functions.
2909 ;; Only allow indirect form specs.
2910 ;; During bootstrapping, edebug-basic-spec might not be
2911 ;; defined yet.
2915 ;; Allow expressions that the user requested.
2917 ;; Certain functions can be allowed with safe arguments
2918 ;; or can specify verification functions to try.
2926 ok))
2934 ok)))))))
2937 "Set local variable VAR with value VAL.
2938 If VAR is `mode', call `VAL-mode' as a function unless it's
2939 already the major mode."
2949 ;; Make sure the string has no text properties.
2950 ;; Some text properties can get evaluated in various ways,
2951 ;; so it is risky to put them on with a local variable list.
2956 \f
2959 However, the mode will not be changed if
2960 \(1) a local variables list or the `-*-' line specifies a major mode, or
2962 \ not suitable for ordinary files, or
2963 \(3) the new file name does not particularly specify any mode."
2968 "Change name of file visited in current buffer to FILENAME.
2969 This also renames the buffer to correspond to the new file.
2970 The next time the buffer is saved it will go in the newly specified file.
2971 FILENAME nil or an empty string means mark buffer as not visiting any file.
2972 Remember to delete the initial contents of the minibuffer
2973 if you wish to pass an empty string as the argument.
2975 The optional second argument NO-QUERY, if non-nil, inhibits asking for
2976 confirmation in the case where another buffer is already visiting FILENAME.
2978 The optional third argument ALONG-WITH-FILE, if non-nil, means that
2979 the old visited file has been renamed to the new name FILENAME."
2987 nil
3002 filename)))
3014 ;; If new-name == old-name, renaming would add a spurious <2>
3015 ;; and it's considered as a feature in rename-buffer.
3021 ;; Abbreviate the file names of the buffer.
3030 nil)))
3031 ;; write-file-functions is normally used for things like ftp-find-file
3032 ;; that visit things that are not local files as if they were files.
3033 ;; Changing to visit an ordinary local file instead should flush the hook.
3038 ;; If buffer was read-only because of version control,
3039 ;; that reason is gone now, so make it writable.
3043 ;; Turn off backup files for certain file names.
3044 ;; Since this is a permanent local, the major mode won't eliminate it.
3046 backup-enable-predicate
3052 ;; If auto-save was not already on, turn it on if appropriate.
3056 ;; If auto save is on, start using a new name.
3057 ;; We deliberately don't rename or delete the old auto save
3058 ;; for the old visited file name. This is because perhaps
3059 ;; the user wants to save the new state and then compare with the
3060 ;; previous state from the auto save file.
3063 ;; Rename the old auto save file if any.
3070 ;; Update the major mode, if the file name determines it.
3072 ;; Don't change the mode if it is special.
3075 ;; Don't change the mode if the local variable list specifies it.
3081 "Write current buffer into file FILENAME.
3082 This makes the buffer visit that file, and marks it as not modified.
3084 If you specify just a directory name as FILENAME, that means to use
3085 the default file name but in that directory. You can also yank
3086 the default file name into the minibuffer to edit it, using \\<minibuffer-local-map>\\[next-history-element].
3088 If the buffer is not already visiting a file, the default file name
3089 for the output file is the buffer name.
3091 If optional second arg CONFIRM is non-nil, this function
3092 asks for confirmation before overwriting an existing file.
3093 Interactively, confirmation is required unless you supply a prefix argument."
3094 ;; (interactive "FWrite file: ")
3098 nil nil nil nil)
3102 default-directory)
3103 nil nil))
3107 ;; If arg is just a directory,
3108 ;; use the default file name, but in that directory.
3119 ;; Make buffer writable if file is writable.
3124 ;; It's likely that the VC status at the new location is different from
3125 ;; the one at the old location.
3127 \f
3129 "Make a backup of the disk file visited by the current buffer, if appropriate.
3130 This is normally done before saving the buffer the first time.
3132 A backup may be done by renaming or by copying; see documentation of
3133 variable `make-backup-files'. If it's done by renaming, then the file is
3134 no longer accessible under its old name.
3136 The value is non-nil after a backup was made by renaming.
3137 It has the form (MODES . BACKUPNAME).
3138 MODES is the result of `file-modes' on the original
3139 file; this means that the caller, after saving the buffer, should change
3140 the modes of the new file to agree with the old modes.
3141 BACKUPNAME is the backup file name, which is the old file renamed."
3148 backup-info backupname targets setmodes)
3149 ;; If specified name is a symbolic link, chase it to the target.
3150 ;; Thus we make the backups in the directory where the real file is.
3155 ;; (if (file-directory-p buffer-file-name)
3156 ;; (error "Cannot save buffer in directory %s" buffer-file-name))
3160 ;; If have old versions to maybe delete,
3161 ;; ask the user to confirm now, before doing anything.
3162 ;; But don't actually delete til later.
3167 real-file-name)))))
3169 ;; Actually write the back up file.
3172 ; (file-symlink-p buffer-file-name)
3173 backup-by-copying
3174 ;; Don't rename a suid or sgid file.
3189 ;; rename-file should delete old backup.
3193 ;; If trouble writing the backup, write it in ~.
3198 backupname)
3202 ;; Now delete the old versions, if desired.
3209 setmodes)
3216 ;; Create temp files with strict access rights. It's easy to
3217 ;; loosen them later, whereas it's impossible to close the
3218 ;; time-window of loose permissions otherwise.
3221 ;; Try to overwrite old backup first.
3229 nil)
3231 ;; The file was somehow created by someone else between
3232 ;; `delete-file' and `copy-file', so let's try again.
3233 ;; rms says "I think there is also a possible race
3234 ;; condition for making backup files" (emacs-devel 20070821).
3235 nil)))
3236 ;; Reset the umask.
3242 "Return file NAME sans backup versions or strings.
3243 This is a separate procedure so your site-init or startup file can
3244 redefine it.
3245 If the optional argument KEEP-BACKUP-VERSION is non-nil,
3246 we do not remove backup version numbers, only true file version numbers."
3252 ;; VMS version number is (a) semicolon, optional
3253 ;; sign, zero or more digits or (b) period, option
3254 ;; sign, zero or more digits, provided this is the
3255 ;; second period encountered outside of the
3256 ;; device/directory part of the file name.
3259 name)
3269 "Return t if deleting FILE and rewriting it would preserve the owner."
3274 ;; Return t if the file doesn't exist, since it's true that no
3275 ;; information would be lost by an (attempted) delete and create.
3281 The extension, in a file name, is the part that follows the last `.',
3282 except that a leading `.', if any, doesn't count."
3285 directory)
3289 ;; Don't use expand-file-name here; if DIRECTORY is relative,
3290 ;; we don't want to expand it.
3293 filename))))
3297 The extension, in a file name, is the part that follows the last `.',
3298 excluding version numbers and backup suffixes,
3299 except that a leading `.', if any, doesn't count.
3300 Return nil for extensionless file names such as `foo'.
3301 Return the empty string for file names such as `foo.'.
3303 If PERIOD is non-nil, then the returned value includes the period
3304 that delimits the extension, and if FILENAME has no extension,
3315 "A function to use instead of the default `make-backup-file-name'.
3316 A value of nil gives the default `make-backup-file-name' behavior.
3318 This could be buffer-local to do something special for specific
3319 files. If you define it, you may need to change `backup-file-name-p'
3320 and `file-name-sans-versions' too.
3322 See also `backup-directory-alist'."
3328 "Alist of filename patterns and backup directory names.
3329 Each element looks like (REGEXP . DIRECTORY). Backups of files with
3330 names matching REGEXP will be made in DIRECTORY. DIRECTORY may be
3331 relative or absolute. If it is absolute, so that all matching files
3332 are backed up into the same directory, the file names in this
3333 directory will be the full name of the file backed up with all
3334 directory separators changed to `!' to prevent clashes. This will not
3335 work correctly if your filesystem truncates the resulting name.
3337 For the common case of all backups going into one directory, the alist
3339 directory name.
3341 If this variable is nil, or it fails to match a filename, the backup
3342 is made in the original file's directory.
3344 On MS-DOS filesystems without long names this variable is always
3345 ignored."
3351 "Default `backup-enable-predicate' function.
3352 Checks for files in `temporary-file-directory',
3353 `small-temporary-file-directory', and /tmp."
3356 ;; Directory is under temporary-file-directory.
3361 ;; Directory is under /tmp.
3366 0 nil
3368 ;; Directory is under small-temporary-file-directory.
3373 "Create the non-numeric backup file name for FILE.
3374 Normally this will just be the file's name with `~' appended.
3375 Customization hooks are provided as follows.
3377 If the variable `make-backup-file-name-function' is non-nil, its value
3378 should be a function which will be called with FILE as its argument;
3379 the resulting name is used.
3381 Otherwise a match for FILE is sought in `backup-directory-alist'; see
3382 the documentation of that variable. If the directory for the backup
3383 doesn't exist, it is created."
3397 "Subroutine of `make-backup-file-name' and `find-backup-file-name'."
3399 elt backup-directory abs-backup-directory)
3404 alist nil)))
3405 ;; If backup-directory is relative, it should be relative to the
3406 ;; file's directory. By expanding explicitly here, we avoid
3407 ;; depending on default-directory.
3416 abs-backup-directory nil))))
3418 file
3422 ;; Normalize DOSish file names: downcase the drive
3423 ;; letter, if any, and replace the leading "x:" with
3424 ;; "/drive_x".
3427 ;; Replace any invalid file-name characters (for the
3428 ;; case of backing up remote files).
3432 "drive_"
3435 ""
3438 ;; Make the name unique by substituting directory
3439 ;; separators. It may not really be worth bothering about
3440 ;; doubling `!'s in the original name...
3445 backup-directory))
3450 "Return non-nil if FILE is a backup file name (numeric or not).
3451 This is a separate function so you can redefine it for customization.
3452 You may need to redefine `file-name-sans-versions' as well."
3457 ;; This is used in various files.
3458 ;; The usage of backup-extract-version-start is not very clean,
3459 ;; but I can't see a good alternative, so as of now I am leaving it alone.
3461 "Given the name of a numeric backup file, FN, return the backup number.
3462 Uses the free variable `backup-extract-version-start', whose value should be
3463 the index in the name where the version number begins."
3469 ;; I believe there is no need to alter this behavior for VMS;
3470 ;; since backup files are not made on VMS, it should not get called.
3472 "Find a file name for a backup file FN, and suggestions for deletions.
3473 Value is a list whose car is the name for the backup file
3474 and whose cdr is a list of old versions to consider deleting now.
3475 If the value is nil, don't make a backup.
3476 Uses `backup-directory-alist' in the same way as does
3477 `make-backup-file-name'."
3479 ;; Run a handler for this function so that ange-ftp can refuse to do it.
3483 ;; We don't support numbered backups on plain MS-DOS
3484 ;; when long file names are unavailable.
3494 possibilities deserve-versions-p versions)
3497 base-versions
3500 possibilities)
3501 #'<)
3506 kept-old-versions
3507 kept-new-versions
3514 ;; Delete nothing if there is overflow
3515 ;; in the number of versions to keep.
3521 v))))))))))
3524 "Return number of names file FILENAME has."
3527 ;; (defun file-relative-name (filename &optional directory)
3528 ;; "Convert FILENAME to be relative to DIRECTORY (default: `default-directory').
3529 ;; This function returns a relative file name which is equivalent to FILENAME
3530 ;; when used with that default directory as the default.
3531 ;; If this is impossible (which can happen on MSDOS and Windows
3532 ;; when the file name and directory use different drive names)
3533 ;; then it returns FILENAME."
3534 ;; (save-match-data
3535 ;; (let ((fname (expand-file-name filename)))
3536 ;; (setq directory (file-name-as-directory
3537 ;; (expand-file-name (or directory default-directory))))
3538 ;; ;; On Microsoft OSes, if FILENAME and DIRECTORY have different
3539 ;; ;; drive names, they can't be relative, so return the absolute name.
3540 ;; (if (and (or (eq system-type 'ms-dos)
3541 ;; (eq system-type 'cygwin)
3542 ;; (eq system-type 'windows-nt))
3543 ;; (not (string-equal (substring fname 0 2)
3544 ;; (substring directory 0 2))))
3545 ;; filename
3546 ;; (let ((ancestor ".")
3547 ;; (fname-dir (file-name-as-directory fname)))
3548 ;; (while (and (not (string-match (concat "^" (regexp-quote directory)) fname-dir))
3549 ;; (not (string-match (concat "^" (regexp-quote directory)) fname)))
3550 ;; (setq directory (file-name-directory (substring directory 0 -1))
3551 ;; ancestor (if (equal ancestor ".")
3552 ;; ".."
3553 ;; (concat "../" ancestor))))
3554 ;; ;; Now ancestor is empty, or .., or ../.., etc.
3555 ;; (if (string-match (concat "^" (regexp-quote directory)) fname)
3556 ;; ;; We matched within FNAME's directory part.
3557 ;; ;; Add the rest of FNAME onto ANCESTOR.
3558 ;; (let ((rest (substring fname (match-end 0))))
3559 ;; (if (and (equal ancestor ".")
3560 ;; (not (equal rest "")))
3561 ;; ;; But don't bother with ANCESTOR if it would give us `./'.
3562 ;; rest
3563 ;; (concat (file-name-as-directory ancestor) rest)))
3564 ;; ;; We matched FNAME's directory equivalent.
3565 ;; ancestor))))))
3568 "Convert FILENAME to be relative to DIRECTORY (default: `default-directory').
3569 This function returns a relative file name which is equivalent to FILENAME
3570 when used with that default directory as the default.
3571 If FILENAME and DIRECTORY lie on different machines or on different drives
3572 on a DOS/Windows machine, it returns FILENAME in expanded form."
3576 default-directory))))
3582 ;; Test for different drives on DOS/Windows
3584 ;; Should `cygwin' really be included here? --stef
3587 ;; Test for different remote file system identification
3589 filename
3595 directory nil nil case-fold-search))
3597 directory nil nil case-fold-search))))
3600 ".."
3602 ;; Now ancestor is empty, or .., or ../.., etc.
3604 directory nil nil case-fold-search))
3605 ;; We matched within FILENAME's directory part.
3606 ;; Add the rest of FILENAME onto ANCESTOR.
3609 ;; But don't bother with ANCESTOR if it would give us `./'.
3610 rest
3612 ;; We matched FILENAME's directory equivalent.
3613 ancestor))))))
3614 \f
3616 "Save current buffer in visited file if modified.
3617 Variations are described below.
3619 By default, makes the previous version into a backup file
3620 if previously requested or if this is the first save.
3622 to become a backup when the next save is done.
3624 unconditionally makes the previous version into a backup file.
3626 to become a backup when the next save is done,
3627 and unconditionally makes the previous version into a backup file.
3629 With a numeric argument of 0, never make the previous version
3630 into a backup file.
3632 If a file's name is FOO, the names of its numbered backup versions are
3633 FOO.~i~ for various integers i. A non-numbered backup file is called FOO~.
3634 Numeric backups (rather than FOO~) will be made if value of
3635 `version-control' is not the atom `never' and either there are already
3636 numeric versions of the file being backed up, or `version-control' is
3637 non-nil.
3638 We don't want excessive versions piling up, so there are variables
3639 `kept-old-versions', which tells Emacs how many oldest versions to keep,
3640 and `kept-new-versions', which tells how many newest versions to keep.
3641 Defaults are 2 old versions and 2 new.
3642 `dired-kept-versions' controls dired's clean-directory (.) command.
3643 If `delete-old-versions' is nil, system will query user
3644 before trimming versions. Otherwise it does it silently.
3646 If `vc-make-backup-files' is nil, which is the default,
3647 no backup files are made for files managed by version control.
3648 (This is because the version control system itself records previous versions.)
3650 See the subroutine `basic-save-buffer' for more information."
3663 "Delete auto-save file for current buffer if `delete-auto-save-files' is t.
3664 Normally delete only if the file was written by this Emacs since
3665 the last real save, but optional arg FORCE non-nil means delete anyway."
3679 "Normal hook that is run before a buffer is saved to its file."
3685 "Normal hook that is run after a buffer is saved to its file."
3691 "If non-nil, use this coding system for saving the buffer.
3692 More precisely, use this coding system in place of the
3693 value of `buffer-file-coding-system', when saving the buffer.
3694 Calling `write-region' for any purpose other than saving the buffer
3695 will still use `buffer-file-coding-system'; this variable has no effect
3702 "Save the current buffer in its visited file, if it has been modified.
3703 The hooks `write-contents-functions' and `write-file-functions' get a chance
3704 to do the job of saving; if they do not, then the buffer is saved in
3705 the visited file in the usual way.
3706 Before and after saving the buffer, this function runs
3707 `before-save-hook' and `after-save-hook', respectively."
3710 ;; In an indirect buffer, save its base buffer instead.
3715 setmodes)
3716 ;; On VMS, rename file and buffer to get rid of version number.
3721 ;; Strip VMS version number before save.
3724 ;; Construct a (unique) buffer name to correspond.
3729 ;; If buffer has no file name, ask user for one.
3736 ;; Signal an error if the user specified the name of an
3737 ;; existing directory.
3740 filename))
3742 ;; Signal an error if the specified name refers to a
3743 ;; non-existing directory.
3773 ;; Support VC version backups.
3779 ;; If a hook returned t, file is already "written".
3780 ;; Otherwise, write it the usual way now.
3782 ;; Now we have saved the current buffer. Let's make sure
3783 ;; that buffer-file-coding-system is fixed to what
3784 ;; actually used for saving by binding it locally.
3794 ;; If the auto-save file was recent before this command,
3795 ;; delete it now.
3797 ;; Support VC `implicit' locking.
3802 ;; This does the "real job" of writing a buffer into its visited file
3803 ;; and making a backup file. This is what is normally done
3804 ;; but inhibited if one of write-file-functions returns non-nil.
3805 ;; It returns a value (MODES . BACKUPNAME), like backup-buffer.
3814 ;; This returns a value (MODES . BACKUPNAME), like backup-buffer.
3828 buffer-file-name)))
3836 ;; If file is precious, write temp name, then rename it.
3837 ;; This requires write access to the containing dir,
3838 ;; which is why we don't try it if we don't have that access.
3840 tempname succeed
3843 ;; Create temp files with strict access rights. It's easy to
3844 ;; loosen them later, whereas it's impossible to close the
3845 ;; time-window of loose permissions otherwise.
3850 ;; Try various temporary names.
3851 ;; This code follows the example of make-temp-file,
3852 ;; but it calls write-region in the appropriate way
3853 ;; for saving the buffer.
3860 tempname nil realname
3862 nil)
3864 ;; The file was somehow created by someone else between
3865 ;; `make-temp-name' and `write-region', let's try again.
3866 nil)
3868 ;; Reset the umask.
3870 ;; If we failed, restore the buffer's modtime.
3873 ;; Since we have created an entirely new file,
3874 ;; make sure it gets the right permission bits set.
3878 buffer-file-name)))
3879 ;; We succeeded in writing the temp file,
3880 ;; so rename it.
3882 ;; If file not writable, see if we can make it writable
3883 ;; temporarily while we write it.
3884 ;; But no need to do so if we have just backed it up
3885 ;; (setmodes is set) because that says we're superseding.
3887 ;; Change the mode back, after writing.
3894 buffer-file-name nil t buffer-file-truename)
3896 ;; If we get an error writing the new file, and we made
3897 ;; the backup by renaming, undo the backing-up.
3902 setmodes))
3905 "View the differences between BUFFER and its associated file.
3906 This requires the external program `diff' to be in your `exec-path'."
3921 ;; Display that message for 1 second so that user can read it
3922 ;; in the minibuffer.
3924 ;; return always nil, so that save-buffers-kill-emacs will not move
3925 ;; over to the next unsaved buffer when calling `d'.
3926 nil)
3929 '((?\C-r
3935 ;; Return nil to ask about BUF again.
3936 nil)
3944 nil)
3953 "Save some modified file-visiting buffers. Asks user about each one.
3954 You can answer `y' to save, `n' not to save, `C-r' to look at the
3955 buffer in question with `view-buffer' before deciding or `d' to
3956 view the differences using `diff-buffer-with-file'.
3958 Optional argument (the prefix) non-nil means save all with no questions.
3959 Optional second argument PRED determines which buffers are considered:
3960 If PRED is nil, all the file-visiting buffers are considered.
3961 If PRED is t, then certain non-file buffers will also be considered.
3962 If PRED is a zero-argument function, it indicates for each buffer whether
3963 to consider it or not when called with that buffer current.
3965 See `save-some-buffers-action-alist' if you want to
3966 change the additional actions you can take on files."
3970 files-done abbrevs-done)
3972 ;; First save any buffers that we're supposed to save unconditionally.
3973 ;; That way the following code won't ask about them.
3978 ;; Ask about those buffers that merit it,
3979 ;; and record the number thus saved.
3995 t
4008 save-some-buffers-action-alist))
4009 ;; Maybe to save abbrevs, and record whether
4010 ;; we either saved them or asked to.
4016 abbrev-file-name)))
4018 ;; Don't keep bothering user if he says no.
4023 "(Some special files were saved without asking)"
4025 \f
4027 "Mark current buffer as unmodified, not needing to be saved.
4030 It is not a good idea to use this function in Lisp programs, because it
4031 prints a message in the minibuffer. Instead, use `set-buffer-modified-p'."
4038 "Change whether this buffer is visiting its file read-only.
4039 With prefix argument ARG, make the buffer read-only if ARG is
4040 positive, otherwise make it writable. If visiting file read-only
4041 and `view-read-only' is non-nil, enter view mode."
4046 nil ; do nothing.
4047 ;; Toggle.
4054 ;; If view-mode is already active, `view-mode-enter' is a nop.
4066 "Insert contents of file FILENAME into buffer after point.
4067 Set mark after the inserted text.
4069 This function is meant for the user to run interactively.
4070 Don't call it from programs! Use `insert-file-contents' instead.
4071 \(Its calling sequence is different; see its documentation)."
4076 "Append the contents of the region to the end of file FILENAME.
4077 When called from a function, expects three arguments,
4078 START, END and FILENAME. START and END are buffer positions
4079 saying what text to write."
4084 "Return most recent backup file for FILENAME or nil if no backups exist."
4085 ;; `make-backup-file-name' will get us the right directory for
4086 ;; ordinary or numeric backups. It might create a directory for
4087 ;; backups as a side-effect, according to `backup-directory-alist'.
4094 tem)
4103 newest))
4106 "Rename current buffer to a similar name not already taken.
4107 This function is useful for creating multiple shell process buffers
4108 or multiple mail buffers, etc."
4116 ;; If the existing buffer name has a <NNN>,
4117 ;; which isn't part of the file name (if any),
4118 ;; then get rid of that.
4124 "Create the directory DIR and any nonexistent parent dirs.
4125 If DIR already exists as a directory, do nothing.
4127 Interactively, the default choice of directory to create
4128 is the current default directory for file names.
4129 That is useful when you have visited a file in a nonexistent directory.
4131 Noninteractively, the second (optional) argument PARENTS says whether
4132 to create parent directories if they don't exist. Interactively,
4133 this happens by default."
4136 nil nil)
4137 t))
4138 ;; If default-directory is a remote directory,
4139 ;; make sure we find its make-directory handler.
4147 create-list)
4154 \f
4157 "Function to use to revert this buffer, or nil to do the default.
4158 The function receives two arguments IGNORE-AUTO and NOCONFIRM,
4163 "Function to use to insert contents when reverting this buffer.
4164 Gets two args, first the nominal file name to use,
4165 and second, t if reading the auto-save file.
4170 "Function to check whether a non-file buffer needs reverting.
4171 This should be a function with one optional argument NOCONFIRM.
4172 Auto Revert Mode passes t for NOCONFIRM. The function should return
4173 non-nil if the buffer should be reverted. A return value of
4174 `fast' means that the need for reverting was not checked, but
4175 that reverting the buffer is fast. The buffer is current when
4176 this function is called.
4178 The idea behind the NOCONFIRM argument is that it should be
4179 non-nil if the buffer is going to be reverted without asking the
4180 user. In such situations, one has to be careful with potentially
4181 time consuming operations.
4183 For more information on how this variable is used by Auto Revert mode,
4187 "Normal hook for `revert-buffer' to run before reverting.
4188 If `revert-buffer-function' is used to override the normal revert
4192 "Normal hook for `revert-buffer' to run after reverting.
4193 Note that the hook value that it runs is the value that was in effect
4194 before reverting; that makes a difference if you have buffer-local
4195 hook functions.
4197 If `revert-buffer-function' is used to override the normal revert
4203 "Replace current buffer text with the text of the visited file on disk.
4204 This undoes all changes since the file was visited or saved.
4205 With a prefix argument, offer to revert from latest auto-save file, if
4206 that is more recent than the visited file.
4208 This command also works for special buffers that contain text which
4209 doesn't come from a file, but reflects some other data base instead:
4210 for example, Dired buffers and `buffer-list' buffers. In these cases,
4211 it reconstructs the buffer contents from the appropriate data base.
4213 When called from Lisp, the first argument is IGNORE-AUTO; only offer
4214 to revert from the auto-save file when this is nil. Note that the
4215 sense of this argument is the reverse of the prefix argument, for the
4216 sake of backward compatibility. IGNORE-AUTO is optional, defaulting
4217 to nil.
4219 Optional second argument NOCONFIRM means don't ask for confirmation at
4220 all. \(The variable `revert-without-query' offers another way to
4221 revert buffers without querying for confirmation.)
4223 Optional third argument PRESERVE-MODES non-nil means don't alter
4224 the files modes. Normally we reinitialize them using `normal-mode'.
4226 If the value of `revert-buffer-function' is non-nil, it is called to
4227 do all the work for this command. Otherwise, the hooks
4228 `before-revert-hook' and `after-revert-hook' are run at the beginning
4229 and the end, and if `revert-buffer-insert-file-contents-function' is
4230 non-nil, it is called instead of rereading visited file contents."
4232 ;; I admit it's odd to reverse the sense of the prefix argument, but
4233 ;; there is a lot of code out there which assumes that the first
4234 ;; argument should be t to avoid consulting the auto-save file, and
4235 ;; there's no straightforward way to encourage authors to notice a
4236 ;; reversal of the argument sense. So I'm just changing the user
4237 ;; interface, but leaving the programmatic interface the same.
4245 buffer-auto-save-file-name
4250 buffer-auto-save-file-name
4251 buffer-file-name)))
4261 file-name)))
4263 ;; If file was backed up but has changed since,
4264 ;; we shd make another backup.
4268 ;; Effectively copy the after-revert-hook status,
4269 ;; since after-find-file will clobber it.
4272 after-revert-hook))
4277 ;; Get rid of all undo records for this buffer.
4279 ;; Don't make undo records for the reversion.
4282 file-name auto-save-p)))
4285 "File %s no longer exists!"
4287 file-name))
4290 "File %s no longer readable!"
4292 file-name))
4294 ;; Bind buffer-file-name to nil
4295 ;; so that we don't try to lock the file.
4301 ;; Auto-saved file should be read by Emacs'
4302 ;; internal coding.
4305 buffer-file-coding-system-explicit))))
4307 coding-system-for-read
4309 coding-system-for-read)
4311 ;; As a coding system suitable for multibyte
4312 ;; buffer is specified, make the current
4313 ;; buffer multibyte.
4316 ;; This force after-insert-file-set-coding
4317 ;; (called from insert-file-contents) to set
4318 ;; buffer-file-coding-system to a proper value.
4321 ;; Note that this preserves point in an intelligent way.
4325 nil nil t))
4327 nil nil t)))))
4328 ;; Recompute the truename in case changes in symlinks
4329 ;; have changed the truename.
4333 ;; Run after-revert-hook as it was before we reverted.
4337 local-hook)
4340 t))))))
4343 "Recover the visited file--get contents from its last auto-save file."
4348 "Visit file FILE, but get contents from its last auto-save file."
4349 ;; Actually putting the file name in the minibuffer should be used
4350 ;; only rarely.
4351 ;; Not just because users often use the default.
4371 ;; Use insert-directory-safely, not insert-directory,
4372 ;; because these files might not exist. In particular,
4373 ;; FILE might not exist if the auto-save file was for
4374 ;; a buffer that didn't visit a file, such as "*mail*".
4375 ;; The code in v20.x called `ls' directly, so we need
4376 ;; to emulate what `ls' did in that case.
4382 ;; Keep the current buffer-file-coding-system.
4384 ;; Auto-saved file should be read with special coding.
4393 "Recover auto save files from a previous Emacs session.
4394 This command first displays a Dired buffer showing you the
4395 previous sessions that you could recover from.
4396 To choose one, move point to the proper line and then type C-c C-c.
4397 Then you'll be asked about a number of files to recover."
4407 auto-save-list-file-prefix)))
4408 t)
4417 ;; Each line starts with a space
4418 ;; so that Font Lock mode won't highlight the first character.
4427 "Choose one saved session to recover auto-save files from.
4428 This command is used in the special Dired buffer created by
4431 ;; Get the name of the session file to recover from.
4433 files
4439 ;; Read in the auto-save-list file.
4443 ;; Loop thru the text of that file
4444 ;; and get out the names of the files to recover.
4448 ;; This is a pair of lines for a non-file-visiting buffer.
4449 ;; Get the auto-save file name and manufacture
4450 ;; a "visited file name" from that.
4453 ;; If there is no auto-save file name, the
4454 ;; auto-save-list file is probably corrupted.
4467 ;; This pair of lines is a file-visiting
4468 ;; buffer. Use the visited file name.
4478 ;; Ignore a file if its auto-save file does not exist now.
4482 ;; The file contains a pair of line for each auto-saved buffer.
4483 ;; The first line of the pair contains the visited file name
4484 ;; or is empty if the buffer was not visiting a file.
4485 ;; The second line is the auto-save file name.
4493 files
4499 "Kill buffer if confirmed."
4507 "Kill some buffers. Asks the user whether to kill each one of them.
4508 Non-interactively, if optional argument LIST is non-nil, it
4509 specifies the list of buffers to kill, asking for approval for each one."
4517 ; if we killed the base buffer.
4524 "Kill buffers whose name matches the specified regexp.
4525 The optional second argument indicates whether to kill internal buffers too."
4534 \f
4536 "Toggle auto-saving of contents of current buffer.
4537 With prefix argument ARG, turn auto-saving on if positive, else off."
4542 ;; If auto-save is off because buffer has shrunk,
4543 ;; then toggling should turn it on.
4548 buffer-file-name
4550 ;; If -1 was stored here, to temporarily turn off saving,
4551 ;; turn it back on.
4557 buffer-auto-save-file-name)
4560 "Adjust current buffer's auto save file name for current conditions.
4561 Also rename any existing auto save file, if it was made in this session."
4573 "Return file name to use for auto-saves of current buffer.
4574 Does not consider `auto-save-visited-file-name' as that variable is checked
4575 before calling this function. You can redefine this for customization.
4576 See also `auto-save-file-name-p'."
4584 result uniq)
4585 ;; Apply user-specified translations
4586 ;; to the file name.
4590 filename)
4600 filename))))
4605 ;; We truncate the file name to DOS 8+3 limits
4606 ;; before doing anything else, because the regexp
4607 ;; passed to string-match below cannot handle
4608 ;; extensions longer than 3 characters, multiple
4609 ;; dots, and other atrocities.
4614 fn)
4619 "#"
4622 ;; Make sure auto-save file names don't contain characters
4623 ;; invalid for the underlying filesystem.
4625 ;; Don't modify remote (ange-ftp) filenames
4628 result))))
4630 ;; Deal with buffers that don't have any associated files. (Mail
4631 ;; mode tends to create a good number of these.)
4635 file-name)
4636 ;; Eliminate all slashes and backslashes by
4637 ;; replacing them with sequences that start with %.
4638 ;; Quote % also, to keep distinct names distinct.
4647 ;; Generate the file name.
4653 ;; Try a few alternative directories, to get one we can
4654 ;; write it.
4660 ;; Don't modify remote (ange-ftp) filenames
4662 ;; The call to convert-standard-filename is in case
4663 ;; buffer-name includes characters not allowed by the
4664 ;; DOS/Windows filesystems. make-temp-file writes to the
4665 ;; file it creates, so we must fix the file name _before_
4666 ;; make-temp-file is called.
4668 fname))
4670 ;; make-temp-file creates the file,
4671 ;; but we don't want it to exist until we do an auto-save.
4675 file-name)))
4678 "Return non-nil if FILENAME can be yielded by `make-auto-save-file-name'.
4679 FILENAME should lack slashes. You can redefine this for customization."
4681 \f
4683 "Given a shell file name pattern WILDCARD, return an equivalent regexp.
4684 The generated regexp will match a filename only if the filename
4685 matches that wildcard according to shell rules. Only wildcards known
4686 by `sh' are supported."
4688 ;; Copy the initial run of non-special characters.
4691 ;; If no special characters, we're almost done.
4695 j)
4697 result
4718 ;; Found "[^". Insert a `\0' character
4719 ;; (which cannot happen in a filename)
4720 ;; into the character class, so that `^'
4721 ;; is not the first character after `[',
4722 ;; and thus non-special in a regexp.
4727 ;; I don't think `]' can appear in a
4728 ;; character class in a wildcard, but
4729 ;; let's be general here.
4736 i
4749 ;; Shell wildcards should match the entire filename,
4750 ;; not its part. Make the regexp say so.
4752 \f
4755 "Switches for `list-directory' to pass to `ls' for brief listing."
4761 "/PROTECTION/SIZE/DATE/OWNER/WIDTH=(OWNER:10)"
4763 "Switches for `list-directory' to pass to `ls' for verbose listing."
4768 "Expand wildcard pattern PATTERN.
4769 This returns a list of file names which match the pattern.
4771 If PATTERN is written as an absolute file name,
4772 the values are absolute also.
4774 If PATTERN is written as a relative file name, it is interpreted
4775 relative to the current default directory, `default-directory'.
4776 The file names returned are normally also relative to the current
4777 default directory. However, if FULL is non-nil, they are absolute."
4781 ;; A list of all dirs that DIRPART specifies.
4782 ;; This can be more than one dir
4783 ;; if DIRPART contains wildcards.
4788 contents)
4793 ;; Filter out "." and ".."
4798 name))
4805 this-dir-contents)
4806 this-dir-contents)
4807 contents))))
4809 contents)))
4812 "Display a list of files in or matching DIRNAME, a la `ls'.
4813 DIRNAME is globbed by the shell if necessary.
4814 Prefix arg (second arg if noninteractive) means supply -l switch to `ls'.
4815 Actions controlled by variables `list-directory-brief-switches'
4816 and `list-directory-verbose-switches'."
4820 nil default-directory nil)
4821 pfx)))
4823 list-directory-brief-switches))
4824 buffer)
4837 ;; Finishing with-output-to-temp-buffer seems to clobber default-directory.
4845 "Quote characters special to the shell in PATTERN, leave wildcards alone.
4847 PATTERN is assumed to represent a file-name wildcard suitable for the
4848 underlying filesystem. For Unix and GNU/Linux, the characters from the
4850 the parts of the pattern which don't include wildcard characters are
4851 quoted with double quotes.
4852 Existing quote characters in PATTERN are left alone, so you can pass
4853 PATTERN that already quotes some of the special characters."
4857 ;; DOS/Windows don't allow `"' in file names. So if the
4858 ;; argument has quotes, we can safely assume it is already
4859 ;; quoted by the caller.
4861 ;; We quote [&()#$'] in case their shell is a port of a
4862 ;; Unixy shell. We quote [,=+] because stock DOS and
4863 ;; Windows shells require that in some cases, such as
4864 ;; passing arguments to batch files that use positional
4865 ;; arguments like %1.
4867 pattern
4870 end)
4887 pattern))))
4894 "Program to get the amount of free space on a file system.
4895 We assume the output has the format of `df'.
4896 The value of this variable must be just a command name or file name;
4897 if you want to specify options, use `directory-free-space-args'.
4899 A value of nil disables this feature.
4901 If the function `file-system-info' is defined, it is always used in
4902 preference to the program given by this variable."
4908 "Options to use when running `directory-free-space-program'."
4913 "Return the amount of free space on directory DIR's file system.
4914 The result is a string that gives the number of free 1KB blocks,
4915 or nil if the system call or the program which retrieve the information
4916 fail. It returns also nil when DIR is a remote directory.
4918 This function calls `file-system-info' if it is available, or invokes the
4919 program specified by `directory-free-space-program' if that is non-nil."
4921 ;; Try to find the number of free blocks. Non-Posix systems don't
4922 ;; always have df, but might have an equivalent system call.
4931 nil t nil
4932 directory-free-space-args
4933 dir)))
4934 ;; Usual format is a header line followed by a line of
4935 ;; numbers.
4940 ;; Move to the end of the "available blocks" number.
4943 ;; Copy it into AVAILABLE.
4948 ;; The following expression replaces `dired-move-to-filename-regexp'.
4952 ;; In some locales, month abbreviations are as short as 2 letters,
4953 ;; and they can be followed by ".".
4954 ;; In Breton, a month name can include a quote character.
4967 s "+"
4970 ;; Japanese MS-Windows ls-lisp has one-digit months, and
4971 ;; omits the Kanji characters after month and day-of-month.
4972 ;; On Mac OS X 10.3, the date format in East Asian locales is
4973 ;; day-of-month digits followed by month digits.
4979 ;; The "[0-9]" below requires the previous column to end in a digit.
4980 ;; This avoids recognizing `1 may 1997' as a date in the line:
4981 ;; -r--r--r-- 1 may 1997 1168 Oct 19 16:49 README
4983 ;; The "[BkKMGTPEZY]?" below supports "ls -alh" output.
4984 ;; The ".*" below finds the last match if there are multiple matches.
4985 ;; This avoids recognizing `jservice 10 1024' as a date in the line:
4986 ;; drwxr-xr-x 3 jservice 10 1024 Jul 2 1997 esg-host
4988 ;; vc dired listings provide the state or blanks between file
4989 ;; permissions and date. The state is always surrounded by
4990 ;; parantheses:
4991 ;; -rw-r--r-- (modified) 2005-10-22 21:25 files.el
4992 ;; This is not supported yet.
4996 "Regular expression to match up to the file name in a directory listing.
4997 The default value is designed to recognize dates and times
5002 ;; insert-directory
5003 ;; - must insert _exactly_one_line_ describing FILE if WILDCARD and
5004 ;; FULL-DIRECTORY-P is nil.
5005 ;; The single line of output must display FILE's name as it was
5006 ;; given, namely, an absolute path name.
5007 ;; - must insert exactly one line for each file if WILDCARD or
5008 ;; FULL-DIRECTORY-P is t, plus one optional "total" line
5009 ;; before the file lines, plus optional text after the file lines.
5010 ;; Lines are delimited by "\n", so filenames containing "\n" are not
5011 ;; allowed.
5012 ;; File lines should display the basename.
5013 ;; - must be consistent with
5014 ;; - functions dired-move-to-filename, (these two define what a file line is)
5015 ;; dired-move-to-end-of-filename,
5016 ;; dired-between-files, (shortcut for (not (dired-move-to-filename)))
5017 ;; dired-insert-headerline
5018 ;; dired-after-subdir-garbage (defines what a "total" line is)
5019 ;; - variable dired-subdir-regexp
5020 ;; - may be passed "--dired" as the first argument in SWITCHES.
5021 ;; Filename handlers might have to remove this switch if their
5022 ;; "ls" command does not support it.
5024 "Insert directory listing for FILE, formatted according to SWITCHES.
5025 Leaves point after the inserted text.
5026 SWITCHES may be a string of options, or a list of strings
5027 representing individual options.
5028 Optional third arg WILDCARD means treat FILE as shell wildcard.
5029 Optional fourth arg FULL-DIRECTORY-P means file is a directory and
5030 switches do not contain `d', so that a full listing is expected.
5032 This works by running a directory listing program
5033 whose name is in the variable `insert-directory-program'.
5034 If WILDCARD, it also runs the shell specified by `shell-file-name'.
5036 When SWITCHES contains the long `--dired' option, this function
5037 treats it specially, for the sake of dired. However, the
5038 normally equivalent short `-D' option is just passed on to
5039 `insert-directory-program', as any other option."
5040 ;; We need the directory in order to find the right handler.
5045 wildcard full-directory-p)
5050 ;; Read the actual directory using `insert-directory-program'.
5051 ;; RESULT gets the status code.
5053 ;; putting text property `dired-filename, decode one
5054 ;; bunch by one to preserve that property.
5056 ;; This is to control encoding the arguments in call-process.
5060 default-file-name-coding-system))))
5063 ;; Run ls in the directory part of the file pattern
5064 ;; using the last component as argument.
5071 shell-file-name nil t nil
5072 "-c"
5074 ""
5076 insert-directory-program
5077 " -d "
5079 switches
5081 " -- "
5082 ;; Quote some characters that have
5083 ;; special meanings in shells; but
5084 ;; don't quote the wildcards--we want
5085 ;; them to be special. We also
5086 ;; currently don't quote the quoting
5087 ;; characters in case people want to
5088 ;; use them explicitly to quote
5089 ;; wildcard characters.
5091 ;; SunOS 4.1.3, SVr4 and others need the "." to list the
5092 ;; directory if FILE is a symbolic link.
5094 insert-directory-program nil t nil
5098 ;; Split the switches at any spaces so we can
5099 ;; pass separate options as separate args.
5101 ;; Avoid lossage if FILE starts with `-'.
5109 file))))))))
5111 ;; If we got "//DIRED//" in the output, it means we got a real
5112 ;; directory listing, even if `ls' returned nonzero.
5113 ;; So ignore any errors.
5126 ;; The first time ls returns an error,
5127 ;; find the version numbers of ls,
5128 ;; and set insert-directory-ls-version
5129 ;; to > if it is more than 5.2.1, < if it is less, nil if it
5130 ;; is equal or if the info cannot be obtained.
5131 ;; (That can mean it isn't GNU ls.)
5141 comparison)
5157 ;; For GNU ls versions 5.2.2 and up, ignore minor errors.
5161 ;; If `insert-directory-program' failed, signal an error.
5163 ;; Delete the error message it may have output.
5165 ;; On non-Posix systems, we cannot open a directory, so
5166 ;; don't even try, because that will always result in
5167 ;; the ubiquitous "Access denied". Instead, show the
5168 ;; command line so the user can try to guess what went wrong.
5173 insert-directory-program
5175 file result)
5176 ;; Unix. Access the file to get a suitable error.
5183 ;; The following overshoots by one line for an empty
5184 ;; directory listed with "--dired", but without "-a"
5185 ;; switch, where the ls output contains a
5186 ;; "//DIRED-OPTIONS//" line, but no "//DIRED//" line.
5187 ;; We take care of that case later.
5195 error-lines)
5196 ;; Find all the lines that are error messages,
5197 ;; and record the bounds of each one.
5204 ;; Now read the numeric positions of file names.
5211 error-lines))
5214 error-lines)))
5216 ;; End is followed by \n or by " -> ".
5218 ;; It seems that we can't trust ls's output as to
5219 ;; byte positions of filenames.
5225 ;; Take care of the case where the ls output contains a
5226 ;; "//DIRED-OPTIONS//"-line, but no "//DIRED//"-line
5227 ;; and we went one line too far back (see above).
5232 ;; Now decode what read if necessary.
5234 file-name-coding-system
5235 default-file-name-coding-system
5237 coding-no-eol
5238 val pos)
5242 ;; If no coding system is specified or detection is
5243 ;; requested, detect the coding.
5257 ;; Force no eol conversion on a file name, so
5258 ;; that CR is preserved.
5266 ;; Try to insert the amount of free space.
5269 ;; First find the line to put it on.
5273 ;; Replace "total" with "used", to avoid confusion.
5279 "Convert `ls --dired' file name position value POS to a buffer position.
5280 File name position values returned in ls --dired output
5281 count only stdout; they don't count the error messages sent to stderr.
5282 So this function converts to them to real buffer positions.
5283 ERROR-LINES is a list of buffer positions of error message lines,
5284 of the form (START END)."
5288 pos)
5292 "Insert directory listing for FILE, formatted according to SWITCHES.
5294 Like `insert-directory', but if FILE does not exist, it inserts a
5295 message to that effect instead of signaling an error."
5298 ;; Simulate the message printed by `ls'.
5302 "Functions to call with no arguments to query about killing Emacs.
5303 If any of these functions returns nil, killing Emacs is cancelled.
5304 `save-buffers-kill-emacs' calls these functions, but `kill-emacs',
5308 "How to ask for confirmation when leaving Emacs.
5309 If nil, the default, don't ask at all. If the value is non-nil, it should
5310 be a predicate function such as `yes-or-no-p'."
5318 "Offer to save each buffer, then kill this Emacs process.
5319 With prefix arg, silently save all file-visiting buffers, then kill."
5328 ;; process-list is not defined on VMS.
5330 active)
5339 ;; Query the user for other things, perhaps.
5346 "Offer to save each buffer, then kill the current connection.
5347 If the current frame has no client, kill Emacs itself.
5349 With prefix arg, silently save all file-visiting buffers, then kill.
5351 If emacsclient was started with a list of filenames to edit, then
5352 only these files will be asked to be saved."
5360 \f
5361 ;; We use /: as a prefix to "quote" a file name
5362 ;; so that magic file name handlers will not apply to it.
5366 file-name-handler-alist))
5368 ;; We depend on being the last handler on the list,
5369 ;; so that anything else which does need handling
5370 ;; has been handled already.
5371 ;; So it is safe for us to inhibit *all* magic file name handlers.
5380 default-directory))
5381 ;; Get a list of the indices of the args which are file names.
5384 ;; The first six are special because they
5385 ;; return a file name. We want to include the /:
5386 ;; in the return value.
5387 ;; So just avoid stripping it in the first place.
5394 ;; `identity' means just return the first arg
5395 ;; not stripped of its quoting.
5397 ;; `add' means add "/:" to the result.
5399 ;; `quote' means add "/:" to buffer-file-name.
5401 ;; `unquote-then-quote' means set buffer-file-name
5402 ;; temporarily to unquoted filename.
5404 ;; List the arguments which are filenames.
5412 ;; For all other operations, treat the first argument only
5413 ;; as the file name.
5415 method
5416 ;; Copy ARGUMENTS so we can replace elements in it.
5420 ;; Strip off the /: from the file names that have it.
5428 "/"
5444 res))
5447 \f
5448 ;; Symbolic modes and read-file-modes.
5451 "Convert CHAR to a who-mask from a symbolic mode notation.
5452 CHAR is in [ugoa] and represents the users on which rights are applied."
5460 "Convert CHAR to a right-mask from a symbolic mode notation.
5461 CHAR is in [rwxXstugo] and represents a right.
5462 If CHAR is in [Xugo], the value is extracted from FROM (or 0 if nil)."
5469 ;; Rights relative to the previous file modes.
5480 "Convert a right string to a right-mask from a symbolic modes notation.
5482 WHO-MASK is the mask number of the users on which the rights are to be applied.
5483 FROM (or 0 if nil) is the orginal modes of the file to be chmod'ed."
5489 char-right)
5496 num-rights
5500 op char-right)))
5501 num-rights))
5504 "Convert symbolic file modes to numeric file modes.
5505 MODES is the string to convert, it should match
5508 notation.
5509 FROM (or 0 if nil) is the orginal modes of the file to be chmod'ed."
5522 num-who num-modes)
5525 num-modes)))
5528 "Read file modes in octal or symbolic notation.
5529 PROMPT is used as the prompt, default to `File modes (octal or symbolic): '.
5530 ORIG-FILE is the original file of which modes will be change."
5539 \f
5564 ;; arch-tag: bc68d3ea-19ca-468b-aac6-3a4a7766101f
5565 ;;; files.el ends here