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* files.el (directory-files-recursively): Use
`file-name-all-completions' instead of `directory-files' for
greater speed.

* doc/lispref/files.texi (Contents of Directories): Document
directory-files-recursively.

* etc/NEWS: Mention directory-files-recursively.

* lisp/files.el (find-files): New function.

* files.el (file-tree-walk): Fix docstring.

`insert-file-contents' by `unwind-protect', in order to set the
buffer's file name anyway.

Fixes: debbugs:18891

	(bug #18719).

Fixes: debbugs:18488

* lisp/emacs-lisp/gv.el (alist-get): Provide expander.
* lisp/winner.el (winner-remember):
* lisp/tempo.el (tempo-use-tag-list):
* lisp/progmodes/gud.el (minor-mode-map-alist):
* lisp/international/mule-cmds.el (define-char-code-property):
* lisp/frameset.el (frameset-filter-params):
* lisp/files.el (dir-locals-set-class-variables):
* lisp/register.el (get-register, set-register):
* lisp/calc/calc-yank.el (calc-set-register): Use it.
* lisp/ps-print.el (ps-get, ps-put, ps-del): Mark as obsolete.
* lisp/tooltip.el (tooltip-set-param): Mark as obsolete.
(tooltip-show): Use alist-get instead.
* lisp/ses.el (ses--alist-get): Remove.  Use alist-get instead.
* admin/unidata/unidata-gen.el (unidata-gen-table-word-list): Use alist-get
and cl-incf.

Except where we expect to backport the corresponding change.

append to minibuffer-setup-hook.

Fixes: debbugs:18341

It causes a more serious problem than the one it solves.
This closes bug#18141, and reopens bug#13522.

* lisp/files.el (basic-save-buffer-2): Revert 2013-01-31 change.

* src/fileio.c: Revert 2013-01-31 change.
(choose_write_coding_system): No longer callable from Lisp.
Move last piece back here from Fwrite_region.
(Fwrite_region, syms_of_fileio): Update for above changes.

* test/automated/data/files-bug18141.el.gz: New file.
* test/automated/files.el (files-test-bug-18141-file):
New variable and test.

* notes/exit-value: Remove specific discussion of VMS.
* doc/emacs/programs.texi (Program Modes): Don't advertise VMS DCL support
any more.
* doc/misc/ediff.texi (Merging and diff3): Don't mention lack of support
for VMS diff, we no longer support VMS.
* lisp/progmodes/ada-mode.el:
* lisp/net/tramp.el (tramp-handle-file-symlink-p):
* lisp/net/tramp-ftp.el (tramp-ftp-file-name-handler): Remove a comment
about VMS, which we no longer support.
* lisp/progmodes/ada-xref.el (ada-xref-current): Remove mention of VMS,
and fix a FIXME, using convert-standard-filename in place of
removed ada-convert-file-name.
* lisp/url/url-handlers.el: Remove a comment about VMS, which we no longer
support.

* README: ``MSDOG'' becomes ``MS-DOS''.
* lisp/arc-mode.el: Fix a couple of ``MS-DOG''s missed in the previous
commit.
* lisp/file-mode.el: ditto.
* src/editfns.c: Fix a couple of ``MS-DOG''s missed in the previous commit.
* src/xfaces.c: ditto.

* lisp/files.el (toggle-read-only): Re-add basic doc-string.

* lisp/vc/vc-hooks.el (vc-toggle-read-only): Tweak obsolescence mesage.

* progmodes/hideif.el (hide-ifdef-mode-submap): Also substitute read-only-mode.

* bindings.el (mode-line-toggle-read-only):
* bs.el (bs-toggle-readonly):
* buff-menu.el (Buffer-menu-toggle-read-only):
* dired.el (dired-toggle-read-only):
* files.el (view-read-only, find-file-read-only)
(find-file-read-only-other-window)
(find-file-read-only-other-frame):
* progmodes/hideif.el (hide-ifdef-toggle-outside-read-only):
Doc fixes re toggle-read-only.

* view.el: Comment updates.

sysinfo failed.  Adjust docstring.
* doc/lispref/internals.texi (Garbage Collection): Mention memory-info.
* lisp/files.el (out-of-memory-warning-percentage): New defcustom.
(warn-maybe-out-of-memory): Use it.

Linux 'sysinfo' function and 'struct sysinfo' type.
* src/alloc.c (Fmemory_info): New function.
* lisp/files.el (warn-maybe-out-of-memory): New function.
(find-file-noselect): Use it.

* src/fns.c (validate_subarray): Add prototype.
(Fcompare_substring): Use validate_subarray to check ranges.
Adjust comment to mention that the semantics was changed.  Also see
http://lists.gnu.org/archive/html/emacs-devel/2014-06/msg00447.html.
* lisp/files.el (dir-locals-find-file, file-relative-name):
* lisp/info.el (Info-complete-menu-item):
* lisp/minibuffer.el (completion-table-subvert): Prefer string-prefix-p
to compare-strings to avoid out-of-range errors.
* lisp/subr.el (string-prefix-p): Adjust to match strict range
checking in compare-strings.
* test/automated/fns-tests.el (fns-tests-compare-string): New test.

Fixes: debbugs:17745

* doc/emacs/buffers.texi (Uniquify): Copyedits.

* doc/emacs/files.texi (Visiting): Update for uniquify changes.

* doc/lispref/files.texi (Subroutines of Visiting): Mention uniquify.

* doc/misc/vip.texi (Files): Defer to Emacs manual for uniquify details.

* lisp/bookmark.el (bookmark-load): Doc fix.

* lisp/uniquify.el (uniquify-buffer-name-style): Doc fix.

* lisp/files.el: Comment.

* etc/NEWS: Related edit.

Fixes: debbugs:17641

* lisp/files.el (interpreter-mode-alist): Add mksh.

* lisp/progmodes/sh-script.el (sh-ancestor-alist): Add mksh, a pdksh
derivative.
(sh-alias-alist): Alias /system/bin/sh (Android's system shell) to
mksh. Improve custom spec; allow regular expressions.
(sh-shell): Delegate name splitting to `sh-canonicalize-shell'.
(sh-after-hack-local-variables): New function.
(sh-mode): Use it; respect file-local `sh-shell' variable.
(sh-set-shell): Use `sh-canonicalize-shell' instead of open-coding
the normalization.
(sh-canonicalize-shell): Rewrite to support regexes.

Fixes: debbugs:17333

* lisp/subr.el (with-file-modes): New macro.

* lisp/printing.el (pr-save-file-modes):
* lisp/eshell/esh-util.el (eshell-with-file-modes): Make obsolete.

* lisp/emacs-lisp/lisp-mode.el (lisp-el-font-lock-keywords-2):
Add with-file-modes.

* lisp/doc-view.el (doc-view-make-safe-dir):
* lisp/epg.el (epg--start):
* lisp/files.el (locate-user-emacs-file, make-temp-file)
(backup-buffer-copy, move-file-to-trash):
* printing.el (pr-despool-print, pr-call-process, pr-text2ps):
* eshell/esh-util.el (eshell-with-private-file-modes)
(eshell-make-private-directory):
* lisp/net/browse-url.el (browse-url-mosaic):
* lisp/obsolete/mailpost.el (post-mail-send-it):
* lisp/obsolete/pgg-pgp.el (pgg-pgp-verify-region):
* lisp/obsolete/pgg-pgp5.el (pgg-pgp5-verify-region):
* lisp/url/url-util.el (url-make-private-file):
Use with-file-modes.

* doc/lispref/files.texi (Changing Files): Mention with-file-modes.

* etc/NEWS: Mention this.

* lisp/files.el (file-expand-wildcards):
* lisp/man.el (Man-support-local-filenames):
* lisp/printing.el (pr-i-directory, pr-interface-directory):
* lisp/progmodes/grep.el (lgrep, rgrep):
* lisp/textmodes/ispell.el (ispell-call-process)
(ispell-call-process-region, ispell-start-process)
(ispell-init-process):
* lisp/mh-e/mh-e.el (mh-variants):
Use file-accessible-directory-p.

rather than executable. 

This can't be any worse, and may be better in some situations.
It may or may not fix bug#17330.

* doc/emacs/arevert-xtra.texi (Supporting additional buffers):
* doc/lispref/backups.texi (Reverting):
Update for buffer-stale-function also applying to file-buffers.

* lisp/autorevert.el (auto-revert-buffers):
* lisp/files.el (buffer-stale--default-function)
(buffer-stale-function, revert-buffer--default): Doc tweaks.

* etc/NEWS: Related edits.

* lisp/files.el (make-backup-file-name-function)
(make-backup-file-name, make-backup-file-name--default-function)
(make-backup-file-name-1, find-backup-file-name)
(revert-buffer-function, revert-buffer-insert-file-contents-function)
(buffer-stale--default-function, buffer-stale-function)
(before-revert-hook, after-revert-hook, revert-buffer-in-progress-p)
(revert-buffer, revert-buffer--default)
(revert-buffer-insert-file-contents--default-function):
Doc fixes related to defaults no longer being nil.
(make-backup-file-name-function): Bump :version.
Restore nil as a valid but deprecated custom type.

* etc/NEWS: Related edit.

Every platform supports it, and the runtime option `create-lockfiles'
replaces it.

* configure.ac (CLASH_DETECTION): Remove option.

* lisp/files.el (lock-buffer, unlock-buffer, file-locked-p):
Remove fallback aliases, since they are always defined now.

* src/buffer.c (Frestore_buffer_modified_p, Fkill_buffer):
* src/emacs.c (shut_down_emacs):
* src/fileio.c (Finsert_file_contents, write_region):
* src/filelock.c (top-level, syms_of_filelock):
* src/insdel.c (prepare_to_modify_buffer_1):
CLASH_DETECTION is always defined now.

* admin/CPP-DEFINES: Remove CLASH_DETECTION.

* lisp/help-fns.el (help-fns--interactive-only): New function.
(help-fns-describe-function-functions): Add the above function.

* lisp/simple.el (beginning-of-buffer, end-of-buffer, insert-buffer)
(next-line, previous-line): Remove hand-written interactive-only
information from doc strings, it is auto-generated now.

* lisp/bookmark.el (bookmark-write):
* lisp/epa-mail.el (epa-mail-decrypt, epa-mail-verify, epa-mail-sign)
(epa-mail-import-keys): Mark interactive-only,
and remove hand-written interactive-only information from doc strings.

* lisp/epa.el (epa-decrypt-armor-in-region, epa-verify-region)
(epa-verify-cleartext-in-region, epa-sign-region, epa-encrypt-region):
* lisp/files.el (not-modified):
* lisp/simple.el (mark-whole-buffer): Mark interactive-only.

* doc/lispref/commands.texi (Defining Commands):
Mention that interactive-only also affects describe-function.

* etc/NEWS: Mention this.

* lisp/emacs-lisp/byte-run.el (defun-declarations-alist):
Add interactive-only.  Doc tweak.
(macro-declarations-alist): Doc tweak.

* lisp/subr.el (declare): Doc tweak (add xref to manual).

* lisp/comint.el (comint-run):
* lisp/files.el (insert-file-literally, insert-file):
* lisp/replace.el (replace-string, replace-regexp):
* lisp/simple.el (beginning-of-buffer, end-of-buffer, delete-backward-char)
(delete-forward-char, goto-line, insert-buffer, next-line)
(previous-line): Set interactive-only via declare.

* doc/lispref/functions.texi (Declare Form): Add interactive-only.

* doc/lispref/commands.texi (Defining Commands) Mention declare.

* etc/NEWS: Mention this.

* window.el (with-temp-buffer-window): Don't make BUFFER-OR-NAME
current (Bug#16816, Bug#17007).
(with-current-buffer-window): New macro doing the same as
`with-temp-buffer-window' but with BUFFER-OR-NAME current.
* help.el (help-print-return-message): Warn in doc-string to not
use this in `with-help-window'.
(describe-bindings-internal): Call `describe-buffer-bindings'
from within help buffer.  See Juanma's scenario in (Bug#16816).
(with-help-window): Update doc-string.
* dired.el (dired-mark-pop-up):
* files.el (save-buffers-kill-emacs):
* register.el (register-preview): Use `with-current-buffer-window'
instead of `with-temp-buffer-window'.
* display.texi (Temporary Displays): Rewrite descriptions of
`with-output-to-temp-buffer' and `with-temp-buffer-window'.
* help.texi (Help Functions): Rewrite description of
`with-help-window'.

* lisp/files.el (interpreter-mode-alist):
* lisp/progmodes/sh-script.el (sh-ancestor-alist): Add dash.

Fixes: debbugs:16938