;;; subr.el --- basic lisp subroutines for Emacs
-;; Copyright (C) 1985, 1986, 1992, 1994, 1995, 1999, 2000, 2001, 2002, 2003,
-;; 2004, 2005, 2006, 2007, 2008, 2009, 2010
+;; Copyright (C) 1985-1986, 1992, 1994-1995, 1999-2011
;; Free Software Foundation, Inc.
;; Maintainer: FSF
`defstruct'.
To specify a value for FILEONLY without passing an argument list,
-set ARGLIST to `t'. This is necessary because `nil' means an
+set ARGLIST to t. This is necessary because nil means an
empty argument list, rather than an unspecified one.
Note that for the purposes of `check-declare', this statement
0 (instrument no arguments); t (instrument all arguments);
a symbol (naming a function with an Edebug specification); or a list.
The elements of the list describe the argument types; see
-\(info \"(elisp)Specification List\") for details."
+Info node `(elisp)Specification List' for details."
`(put (quote ,symbol) 'edebug-form-spec (quote ,spec)))
(defmacro lambda (&rest cdr)
;; depend on backquote.el.
(list 'function (cons 'lambda cdr)))
+;; Partial application of functions (similar to "currying").
+;; This function is here rather than in subr.el because it uses CL.
+(defun apply-partially (fun &rest args)
+ "Return a function that is a partial application of FUN to ARGS.
+ARGS is a list of the first N arguments to pass to FUN.
+The result is a new function which does the same as FUN, except that
+the first N arguments are fixed at the values with which this function
+was called."
+ `(closure (t) (&rest args)
+ (apply ',fun ,@(mapcar (lambda (arg) `',arg) args) args)))
+
(if (null (featurep 'cl))
(progn
;; If we reload subr.el after having loaded CL, be careful not to
;; If we reload subr.el after having loaded CL, be careful not to
;; overwrite CL's extended definition of `dolist', `dotimes',
;; `declare', `push' and `pop'.
-(defvar --dolist-tail-- nil
- "Temporary variable used in `dolist' expansion.")
(defmacro dolist (spec &rest body)
"Loop over a list.
;; It would be cleaner to create an uninterned symbol,
;; but that uses a lot more space when many functions in many files
;; use dolist.
+ ;; FIXME: This cost disappears in byte-compiled lexical-binding files.
(let ((temp '--dolist-tail--))
- `(let ((,temp ,(nth 1 spec))
- ,(car spec))
- (while ,temp
- (setq ,(car spec) (car ,temp))
- ,@body
- (setq ,temp (cdr ,temp)))
- ,@(if (cdr (cdr spec))
- `((setq ,(car spec) nil) ,@(cdr (cdr spec)))))))
-
-(defvar --dotimes-limit-- nil
- "Temporary variable used in `dotimes' expansion.")
+ ;; This is not a reliable test, but it does not matter because both
+ ;; semantics are acceptable, tho one is slightly faster with dynamic
+ ;; scoping and the other is slightly faster (and has cleaner semantics)
+ ;; with lexical scoping.
+ (if lexical-binding
+ `(let ((,temp ,(nth 1 spec)))
+ (while ,temp
+ (let ((,(car spec) (car ,temp)))
+ ,@body
+ (setq ,temp (cdr ,temp))))
+ ,@(if (cdr (cdr spec))
+ ;; FIXME: This let often leads to "unused var" warnings.
+ `((let ((,(car spec) nil)) ,@(cdr (cdr spec))))))
+ `(let ((,temp ,(nth 1 spec))
+ ,(car spec))
+ (while ,temp
+ (setq ,(car spec) (car ,temp))
+ ,@body
+ (setq ,temp (cdr ,temp)))
+ ,@(if (cdr (cdr spec))
+ `((setq ,(car spec) nil) ,@(cdr (cdr spec))))))))
(defmacro dotimes (spec &rest body)
"Loop a certain number of times.
;; It would be cleaner to create an uninterned symbol,
;; but that uses a lot more space when many functions in many files
;; use dotimes.
+ ;; FIXME: This cost disappears in byte-compiled lexical-binding files.
(let ((temp '--dotimes-limit--)
(start 0)
(end (nth 1 spec)))
- `(let ((,temp ,end)
- (,(car spec) ,start))
- (while (< ,(car spec) ,temp)
- ,@body
- (setq ,(car spec) (1+ ,(car spec))))
- ,@(cdr (cdr spec)))))
-
-(defmacro declare (&rest specs)
+ ;; This is not a reliable test, but it does not matter because both
+ ;; semantics are acceptable, tho one is slightly faster with dynamic
+ ;; scoping and the other has cleaner semantics.
+ (if lexical-binding
+ (let ((counter '--dotimes-counter--))
+ `(let ((,temp ,end)
+ (,counter ,start))
+ (while (< ,counter ,temp)
+ (let ((,(car spec) ,counter))
+ ,@body)
+ (setq ,counter (1+ ,counter)))
+ ,@(if (cddr spec)
+ ;; FIXME: This let often leads to "unused var" warnings.
+ `((let ((,(car spec) ,counter)) ,@(cddr spec))))))
+ `(let ((,temp ,end)
+ (,(car spec) ,start))
+ (while (< ,(car spec) ,temp)
+ ,@body
+ (setq ,(car spec) (1+ ,(car spec))))
+ ,@(cdr (cdr spec))))))
+
+(defmacro declare (&rest _specs)
"Do not evaluate any arguments and return nil.
Treated as a declaration when used at the right place in a
`defmacro' form. \(See Info anchor `(elisp)Definition of declare'.)"
\f
;;;; Basic Lisp functions.
-(defun ignore (&rest ignore)
+(defun ignore (&rest _ignore)
"Do nothing and return nil.
This function accepts any number of arguments, but ignores them."
(interactive)
configuration."
(and (consp object)
(eq (car object) 'frame-configuration)))
-
-(defun functionp (object)
- "Non-nil if OBJECT is a function."
- (or (and (symbolp object) (fboundp object)
- (condition-case nil
- (setq object (indirect-function object))
- (error nil))
- (eq (car-safe object) 'autoload)
- (not (car-safe (cdr-safe (cdr-safe (cdr-safe (cdr-safe object)))))))
- (and (subrp object)
- ;; Filter out special forms.
- (not (eq 'unevalled (cdr (subr-arity object)))))
- (byte-code-function-p object)
- (eq (car-safe object) 'lambda)))
\f
;;;; List functions.
(read-kbd-macro keys))
(defun undefined ()
+ "Beep to tell the user this binding is undefined."
(interactive)
(ding))
(defsubst event-start (event)
"Return the starting position of EVENT.
-If EVENT is a mouse or key press or a mouse click, this returns the location
-of the event.
-If EVENT is a drag, this returns the drag's starting position.
-The return value is of the form
+EVENT should be a click, drag, or key press event.
+If it is a key press event, the return value has the form
+ (WINDOW POS (0 . 0) 0)
+If it is a click or drag event, it has the form
(WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
IMAGE (DX . DY) (WIDTH . HEIGHT))
-The `posn-' functions access elements of such lists."
+The `posn-' functions access elements of such lists.
+For more information, see Info node `(elisp)Click Events'.
+
+If EVENT is a mouse or key press or a mouse click, this is the
+position of the event. If EVENT is a drag, this is the starting
+position of the drag."
(if (consp event) (nth 1 event)
(list (selected-window) (point) '(0 . 0) 0)))
(defsubst event-end (event)
"Return the ending location of EVENT.
EVENT should be a click, drag, or key press event.
-If EVENT is a click event, this function is the same as `event-start'.
-The return value is of the form
+If EVENT is a key press event, the return value has the form
+ (WINDOW POS (0 . 0) 0)
+If EVENT is a click event, this function is the same as
+`event-start'. For click and drag events, the return value has
+the form
(WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
IMAGE (DX . DY) (WIDTH . HEIGHT))
-The `posn-' functions access elements of such lists."
+The `posn-' functions access elements of such lists.
+For more information, see Info node `(elisp)Click Events'.
+
+If EVENT is a mouse or key press or a mouse click, this is the
+position of the event. If EVENT is a drag, this is the starting
+position of the drag."
(if (consp event) (nth (if (consp (nth 2 event)) 2 1) event)
(list (selected-window) (point) '(0 . 0) 0)))
(make-obsolete-variable 'define-key-rebound-commands nil "23.2")
(make-obsolete-variable 'redisplay-end-trigger-functions 'jit-lock-register "23.1")
+(make-obsolete-variable 'deferred-action-list 'post-command-hook "24.1")
+(make-obsolete-variable 'deferred-action-function 'post-command-hook "24.1")
(make-obsolete 'window-redisplay-end-trigger nil "23.1")
(make-obsolete 'set-window-redisplay-end-trigger nil "23.1")
(kill-local-variable hook)
(set hook hook-value))))))
+(defmacro letrec (binders &rest body)
+ "Bind variables according to BINDERS then eval BODY.
+The value of the last form in BODY is returned.
+Each element of BINDERS is a list (SYMBOL VALUEFORM) which binds
+SYMBOL to the value of VALUEFORM.
+All symbols are bound before the VALUEFORMs are evalled."
+ ;; Only useful in lexical-binding mode.
+ ;; As a special-form, we could implement it more efficiently (and cleanly,
+ ;; making the vars actually unbound during evaluation of the binders).
+ (declare (debug let) (indent 1))
+ `(let ,(mapcar #'car binders)
+ ,@(mapcar (lambda (binder) `(setq ,@binder)) binders)
+ ,@body))
+
+(defmacro with-wrapper-hook (var args &rest body)
+ "Run BODY wrapped with the VAR hook.
+VAR is a special hook: its functions are called with a first argument
+which is the \"original\" code (the BODY), so the hook function can wrap
+the original function, or call it any number of times (including not calling
+it at all). This is similar to an `around' advice.
+VAR is normally a symbol (a variable) in which case it is treated like
+a hook, with a buffer-local and a global part. But it can also be an
+arbitrary expression.
+ARGS is a list of variables which will be passed as additional arguments
+to each function, after the initial argument, and which the first argument
+expects to receive when called."
+ (declare (indent 2) (debug t))
+ ;; We need those two gensyms because CL's lexical scoping is not available
+ ;; for function arguments :-(
+ (let ((funs (make-symbol "funs"))
+ (global (make-symbol "global"))
+ (argssym (make-symbol "args"))
+ (runrestofhook (make-symbol "runrestofhook")))
+ ;; Since the hook is a wrapper, the loop has to be done via
+ ;; recursion: a given hook function will call its parameter in order to
+ ;; continue looping.
+ `(letrec ((,runrestofhook
+ (lambda (,funs ,global ,argssym)
+ ;; `funs' holds the functions left on the hook and `global'
+ ;; holds the functions left on the global part of the hook
+ ;; (in case the hook is local).
+ (if (consp ,funs)
+ (if (eq t (car ,funs))
+ (funcall ,runrestofhook
+ (append ,global (cdr ,funs)) nil ,argssym)
+ (apply (car ,funs)
+ (apply-partially
+ (lambda (,funs ,global &rest ,argssym)
+ (funcall ,runrestofhook ,funs ,global ,argssym))
+ (cdr ,funs) ,global)
+ ,argssym))
+ ;; Once there are no more functions on the hook, run
+ ;; the original body.
+ (apply (lambda ,args ,@body) ,argssym)))))
+ (funcall ,runrestofhook ,var
+ ;; The global part of the hook, if any.
+ ,(if (symbolp var)
+ `(if (local-variable-p ',var)
+ (default-value ',var)))
+ (list ,@args)))))
+
(defun add-to-list (list-var element &optional append compare-fn)
"Add ELEMENT to the value of LIST-VAR if it isn't there yet.
The test for presence of ELEMENT is done with `equal',
this name matching.
Alternatively, FILE can be a feature (i.e. a symbol), in which case FORM
-is evaluated whenever that feature is `provide'd. Note that although
-provide statements are usually at the end of files, this is not always
-the case (e.g., sometimes they are at the start to avoid a recursive
-load error). If your FORM should not be evaluated until the code in
-FILE has been, do not use the symbol form for FILE in such cases.
+is evaluated at the end of any file that `provide's this feature.
Usually FILE is just a library name like \"font-lock\" or a feature name
like 'font-lock.
;; Add this FORM into after-load-alist (regardless of whether we'll be
;; evaluating it now).
(let* ((regexp-or-feature
- (if (stringp file) (setq file (purecopy (load-history-regexp file))) file))
+ (if (stringp file)
+ (setq file (purecopy (load-history-regexp file)))
+ file))
(elt (assoc regexp-or-feature after-load-alist)))
(unless elt
(setq elt (list regexp-or-feature))
(push elt after-load-alist))
+ ;; Make sure `form' is evalled in the current lexical/dynamic code.
+ (setq form `(funcall ',(eval `(lambda () ,form) lexical-binding)))
+ (when (symbolp regexp-or-feature)
+ ;; For features, the after-load-alist elements get run when `provide' is
+ ;; called rather than at the end of the file. So add an indirection to
+ ;; make sure that `form' is really run "after-load" in case the provide
+ ;; call happens early.
+ (setq form
+ `(when load-file-name
+ (let ((fun (make-symbol "eval-after-load-helper")))
+ (fset fun `(lambda (file)
+ (if (not (equal file ',load-file-name))
+ nil
+ (remove-hook 'after-load-functions ',fun)
+ ,',form)))
+ (add-hook 'after-load-functions fun)))))
;; Add FORM to the element unless it's already there.
(unless (member form (cdr elt))
(nconc elt (purecopy (list form))))
FILE should be the name of a library, with no directory name."
(eval-after-load file (read)))
(make-obsolete 'eval-next-after-load `eval-after-load "23.2")
+
+(defun display-delayed-warnings ()
+ "Display delayed warnings from `delayed-warnings-list'.
+This is the default value of `delayed-warnings-hook'."
+ (dolist (warning (nreverse delayed-warnings-list))
+ (apply 'display-warning warning))
+ (setq delayed-warnings-list nil))
+
+(defvar delayed-warnings-hook '(display-delayed-warnings)
+ "Normal hook run to process delayed warnings.
+Functions in this hook should access the `delayed-warnings-list'
+variable (which see) and remove from it the warnings they process.")
+
\f
;;;; Process stuff.
(forward-line 1))
(nreverse lines)))))
-;; open-network-stream is a wrapper around make-network-process.
-
-(when (featurep 'make-network-process)
- (defun open-network-stream (name buffer host service)
- "Open a TCP connection for a service to a host.
-Returns a subprocess-object to represent the connection.
-Input and output work as for subprocesses; `delete-process' closes it.
-
-NAME is the name for the process. It is modified if necessary to make
- it unique.
-BUFFER is the buffer (or buffer name) to associate with the
- process. Process output goes at end of that buffer. BUFFER may
- be nil, meaning that this process is not associated with any buffer.
-HOST is the name or IP address of the host to connect to.
-SERVICE is the name of the service desired, or an integer specifying
- a port number to connect to.
-
-This is a wrapper around `make-network-process', and only offers a
-subset of its functionality."
- (make-network-process :name name :buffer buffer
- :host host :service service)))
-
;; compatibility
(make-obsolete
'process-kill-without-query
"use `process-query-on-exit-flag' or `set-process-query-on-exit-flag'."
"22.1")
-(defun process-kill-without-query (process &optional flag)
+(defun process-kill-without-query (process &optional _flag)
"Say no query needed if PROCESS is running when Emacs is exited.
Optional second argument if non-nil says to require a query.
Value is t if a query was formerly required."
The user ends with RET, LFD, or ESC. DEL or C-h rubs out.
C-y yanks the current kill. C-u kills line.
C-g quits; if `inhibit-quit' was non-nil around this function,
-then it returns nil if the user types C-g, but quit-flag remains set.
+then it returns nil if the user types C-g, but `quit-flag' remains set.
Once the caller uses the password, it can erase the password
by doing (clear-string STRING)."
t)))
n))
+(defun read-char-choice (prompt chars &optional inhibit-keyboard-quit)
+ "Read and return one of CHARS, prompting for PROMPT.
+Any input that is not one of CHARS is ignored.
+
+If optional argument INHIBIT-KEYBOARD-QUIT is non-nil, ignore
+keyboard-quit events while waiting for a valid input."
+ (unless (consp chars)
+ (error "Called `read-char-choice' without valid char choices"))
+ (let (char done)
+ (let ((cursor-in-echo-area t)
+ (executing-kbd-macro executing-kbd-macro))
+ (while (not done)
+ (unless (get-text-property 0 'face prompt)
+ (setq prompt (propertize prompt 'face 'minibuffer-prompt)))
+ (setq char (let ((inhibit-quit inhibit-keyboard-quit))
+ (read-key prompt)))
+ (cond
+ ((not (numberp char)))
+ ((memq char chars)
+ (setq done t))
+ ((and executing-kbd-macro (= char -1))
+ ;; read-event returns -1 if we are in a kbd macro and
+ ;; there are no more events in the macro. Attempt to
+ ;; get an event interactively.
+ (setq executing-kbd-macro nil)))))
+ ;; Display the question with the answer. But without cursor-in-echo-area.
+ (message "%s%s" prompt (char-to-string char))
+ char))
+
(defun sit-for (seconds &optional nodisp obsolete)
"Perform redisplay, then wait for SECONDS seconds or until input is available.
SECONDS may be a floating-point value.
nil))))))
(set-advertised-calling-convention 'sit-for '(seconds &optional nodisp) "22.1")
-(defun y-or-n-p (prompt &rest args)
+(defun y-or-n-p (prompt)
"Ask user a \"y or n\" question. Return t if answer is \"y\".
-The argument PROMPT is the string to display to ask the question.
-It should end in a space; `y-or-n-p' adds `(y or n) ' to it.
+PROMPT is the string to display to ask the question. It should
+end in a space; `y-or-n-p' adds \"(y or n) \" to it.
+
No confirmation of the answer is requested; a single character is enough.
Also accepts Space to mean yes, or Delete to mean no. \(Actually, it uses
the bindings in `query-replace-map'; see the documentation of that variable
use-dialog-box)
(setq answer
(x-popup-dialog t `(,prompt ("yes" . act) ("No" . skip))))
- (setq prompt (concat (apply 'format prompt args)
+ (setq prompt (concat prompt
(if (eq ?\s (aref prompt (1- (length prompt))))
"" " ")
"(y or n) "))
;; unless we're in batch mode or dumping Emacs
(or noninteractive
purify-flag
- (file-accessible-directory-p (directory-file-name user-emacs-directory))
- (make-directory user-emacs-directory))
+ (file-accessible-directory-p
+ (directory-file-name user-emacs-directory))
+ (let ((umask (default-file-modes)))
+ (unwind-protect
+ (progn
+ (set-default-file-modes ?\700)
+ (make-directory user-emacs-directory))
+ (set-default-file-modes umask))))
(abbreviate-file-name
(expand-file-name new-name user-emacs-directory))))))
-
\f
;;;; Misc. useful functions.
(defun shell-quote-argument (argument)
"Quote ARGUMENT for passing as argument to an inferior shell."
- (if (or (eq system-type 'ms-dos)
- (and (eq system-type 'windows-nt) (w32-shell-dos-semantics)))
- ;; Quote using double quotes, but escape any existing quotes in
- ;; the argument with backslashes.
- (let ((result "")
- (start 0)
- end)
- (if (or (null (string-match "[^\"]" argument))
- (< (match-end 0) (length argument)))
- (while (string-match "[\"]" argument start)
- (setq end (match-beginning 0)
- result (concat result (substring argument start end)
- "\\" (substring argument end (1+ end)))
- start (1+ end))))
- (concat "\"" result (substring argument start) "\""))
+ (cond
+ ((eq system-type 'ms-dos)
+ ;; Quote using double quotes, but escape any existing quotes in
+ ;; the argument with backslashes.
+ (let ((result "")
+ (start 0)
+ end)
+ (if (or (null (string-match "[^\"]" argument))
+ (< (match-end 0) (length argument)))
+ (while (string-match "[\"]" argument start)
+ (setq end (match-beginning 0)
+ result (concat result (substring argument start end)
+ "\\" (substring argument end (1+ end)))
+ start (1+ end))))
+ (concat "\"" result (substring argument start) "\"")))
+
+ ((and (eq system-type 'windows-nt) (w32-shell-dos-semantics))
+
+ ;; First, quote argument so that CommandLineToArgvW will
+ ;; understand it. See
+ ;; http://msdn.microsoft.com/en-us/library/17w5ykft%28v=vs.85%29.aspx
+ ;; After we perform that level of quoting, escape shell
+ ;; metacharacters so that cmd won't mangle our argument. If the
+ ;; argument contains no double quote characters, we can just
+ ;; surround it with double quotes. Otherwise, we need to prefix
+ ;; each shell metacharacter with a caret.
+
+ (setq argument
+ ;; escape backslashes at end of string
+ (replace-regexp-in-string
+ "\\(\\\\*\\)$"
+ "\\1\\1"
+ ;; escape backslashes and quotes in string body
+ (replace-regexp-in-string
+ "\\(\\\\*\\)\""
+ "\\1\\1\\\\\""
+ argument)))
+
+ (if (string-match "[%!\"]" argument)
+ (concat
+ "^\""
+ (replace-regexp-in-string
+ "\\([%!()\"<>&|^]\\)"
+ "^\\1"
+ argument)
+ "^\"")
+ (concat "\"" argument "\"")))
+
+ (t
(if (equal argument "")
"''"
;; Quote everything except POSIX filename characters.
;; This should be safe enough even for really weird shells.
- (let ((result "") (start 0) end)
- (while (string-match "[^-0-9a-zA-Z_./]" argument start)
- (setq end (match-beginning 0)
- result (concat result (substring argument start end)
- "\\" (substring argument end (1+ end)))
- start (1+ end)))
- (concat result (substring argument start))))))
+ (replace-regexp-in-string
+ "\n" "'\n'"
+ (replace-regexp-in-string "[^-0-9a-zA-Z_./\n]" "\\\\\\&" argument))))
+ ))
(defun string-or-null-p (object)
"Return t if OBJECT is a string or nil.
(defvar yank-undo-function)
(defun insert-for-yank (string)
- "Calls `insert-for-yank-1' repetitively for each `yank-handler' segment.
+ "Call `insert-for-yank-1' repetitively for each `yank-handler' segment.
See `insert-for-yank-1' for more details."
(let (to)
(when (buffer-live-p ,old-buffer)
(set-buffer ,old-buffer))))))
+(defmacro save-window-excursion (&rest body)
+ "Execute BODY, preserving window sizes and contents.
+Return the value of the last form in BODY.
+Restore which buffer appears in which window, where display starts,
+and the value of point and mark for each window.
+Also restore the choice of selected window.
+Also restore which buffer is current.
+Does not restore the value of point in current buffer.
+
+BEWARE: Most uses of this macro introduce bugs.
+E.g. it should not be used to try and prevent some code from opening
+a new window, since that window may sometimes appear in another frame,
+in which case `save-window-excursion' cannot help."
+ (declare (indent 0) (debug t))
+ (let ((c (make-symbol "wconfig")))
+ `(let ((,c (current-window-configuration)))
+ (unwind-protect (progn ,@body)
+ (set-window-configuration ,c)))))
+
+(defmacro with-output-to-temp-buffer (bufname &rest body)
+ "Bind `standard-output' to buffer BUFNAME, eval BODY, then show that buffer.
+
+This construct makes buffer BUFNAME empty before running BODY.
+It does not make the buffer current for BODY.
+Instead it binds `standard-output' to that buffer, so that output
+generated with `prin1' and similar functions in BODY goes into
+the buffer.
+
+At the end of BODY, this marks buffer BUFNAME unmodifed and displays
+it in a window, but does not select it. The normal way to do this is
+by calling `display-buffer', then running `temp-buffer-show-hook'.
+However, if `temp-buffer-show-function' is non-nil, it calls that
+function instead (and does not run `temp-buffer-show-hook'). The
+function gets one argument, the buffer to display.
+
+The return value of `with-output-to-temp-buffer' is the value of the
+last form in BODY. If BODY does not finish normally, the buffer
+BUFNAME is not displayed.
+
+This runs the hook `temp-buffer-setup-hook' before BODY,
+with the buffer BUFNAME temporarily current. It runs the hook
+`temp-buffer-show-hook' after displaying buffer BUFNAME, with that
+buffer temporarily current, and the window that was used to display it
+temporarily selected. But it doesn't run `temp-buffer-show-hook'
+if it uses `temp-buffer-show-function'."
+ (let ((old-dir (make-symbol "old-dir"))
+ (buf (make-symbol "buf")))
+ `(let* ((,old-dir default-directory)
+ (,buf
+ (with-current-buffer (get-buffer-create ,bufname)
+ (prog1 (current-buffer)
+ (kill-all-local-variables)
+ ;; FIXME: delete_all_overlays
+ (setq default-directory ,old-dir)
+ (setq buffer-read-only nil)
+ (setq buffer-file-name nil)
+ (setq buffer-undo-list t)
+ (let ((inhibit-read-only t)
+ (inhibit-modification-hooks t))
+ (erase-buffer)
+ (run-hooks 'temp-buffer-setup-hook)))))
+ (standard-output ,buf))
+ (prog1 (progn ,@body)
+ (internal-temp-output-buffer-show ,buf)))))
+
(defmacro with-temp-file (file &rest body)
"Create a new buffer, evaluate BODY there, and write the buffer to FILE.
The value returned is the value of the last form in BODY.
REP is either a string used as the NEWTEXT arg of `replace-match' or a
function. If it is a function, it is called with the actual text of each
match, and its value is used as the replacement text. When REP is called,
-the match-data are the result of matching REGEXP against a substring
+the match data are the result of matching REGEXP against a substring
of STRING.
To replace only the first match (if any), make REGEXP match up to \\'
\f
;;;; Text clones
-(defun text-clone-maintain (ol1 after beg end &optional len)
+(defun text-clone-maintain (ol1 after beg end &optional _len)
"Propagate the changes made under the overlay OL1 to the other clones.
This is used on the `modification-hooks' property of text clones."
(when (and after (not undo-in-progress) (overlay-start ol1))
HCoop / bpt / emacs.git / blobdiff