;;; simple.el --- basic editing commands for Emacs
-;; Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-;; 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
-;; Free Software Foundation, Inc.
+;; Copyright (C) 1985-1987, 1993-2011 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: internal
+;; Package: emacs
;; This file is part of GNU Emacs.
;;; Code:
-;; This is for lexical-let in apply-partially.
-(eval-when-compile (require 'cl))
+(eval-when-compile (require 'cl)) ;For define-minor-mode.
(declare-function widget-convert "wid-edit" (type &rest args))
(declare-function shell-mode "shell" ())
+;;; From compile.el
(defvar compilation-current-error)
+(defvar compilation-context-lines)
(defcustom idle-update-delay 0.5
"Idle time delay before updating various things on the screen.
(defgroup paren-matching nil
"Highlight (un)matching of parens and expressions."
:group 'matching)
-
-(defun get-next-valid-buffer (list &optional buffer visible-ok frame)
- "Search LIST for a valid buffer to display in FRAME.
-Return nil when all buffers in LIST are undesirable for display,
-otherwise return the first suitable buffer in LIST.
-
-Buffers not visible in windows are preferred to visible buffers,
-unless VISIBLE-OK is non-nil.
-If the optional argument FRAME is nil, it defaults to the selected frame.
-If BUFFER is non-nil, ignore occurrences of that buffer in LIST."
- ;; This logic is more or less copied from other-buffer.
- (setq frame (or frame (selected-frame)))
- (let ((pred (frame-parameter frame 'buffer-predicate))
- found buf)
- (while (and (not found) list)
- (setq buf (car list))
- (if (and (not (eq buffer buf))
- (buffer-live-p buf)
- (or (null pred) (funcall pred buf))
- (not (eq (aref (buffer-name buf) 0) ?\s))
- (or visible-ok (null (get-buffer-window buf 'visible))))
- (setq found buf)
- (setq list (cdr list))))
- (car list)))
-
-(defun last-buffer (&optional buffer visible-ok frame)
- "Return the last buffer in FRAME's buffer list.
-If BUFFER is the last buffer, return the preceding buffer instead.
-Buffers not visible in windows are preferred to visible buffers,
-unless optional argument VISIBLE-OK is non-nil.
-Optional third argument FRAME nil or omitted means use the
-selected frame's buffer list.
-If no such buffer exists, return the buffer `*scratch*', creating
-it if necessary."
- (setq frame (or frame (selected-frame)))
- (or (get-next-valid-buffer (nreverse (buffer-list frame))
- buffer visible-ok frame)
- (get-buffer "*scratch*")
- (let ((scratch (get-buffer-create "*scratch*")))
- (set-buffer-major-mode scratch)
- scratch)))
-
-(defun next-buffer ()
- "Switch to the next buffer in cyclic order."
- (interactive)
- (let ((buffer (current-buffer)))
- (switch-to-buffer (other-buffer buffer t))
- (bury-buffer buffer)))
-
-(defun previous-buffer ()
- "Switch to the previous buffer in cyclic order."
- (interactive)
- (switch-to-buffer (last-buffer (current-buffer) t)))
-
\f
;;; next-error support framework
until you use it in some other buffer which uses Compilation mode
or Compilation Minor mode.
-See variables `compilation-parse-errors-function' and
-\`compilation-error-regexp-alist' for customization ideas."
+To control which errors are matched, customize the variable
+`compilation-error-regexp-alist'."
(interactive "P")
(if (consp arg) (setq reset t arg nil))
(when (setq next-error-last-buffer (next-error-find-buffer))
Other major modes are defined by comparison with this one."
(interactive)
(kill-all-local-variables)
- (unless delay-mode-hooks
- (run-hooks 'after-change-major-mode-hook)))
+ (run-mode-hooks 'fundamental-mode-hook))
;; Special major modes to view specially formatted data rather than files.
(define-key map " " 'scroll-up)
(define-key map "\C-?" 'scroll-down)
(define-key map "?" 'describe-mode)
+ (define-key map "h" 'describe-mode)
(define-key map ">" 'end-of-buffer)
(define-key map "<" 'beginning-of-buffer)
(define-key map "g" 'revert-buffer)
+ (define-key map "z" 'kill-this-buffer)
map))
(put 'special-mode 'mode-class 'special)
"Parent major mode from which special major modes should inherit."
(setq buffer-read-only t))
+;; Major mode meant to be the parent of programming modes.
+
+(defvar prog-mode-map
+ (let ((map (make-sparse-keymap)))
+ (define-key map [?\C-\M-q] 'prog-indent-sexp)
+ map)
+ "Keymap used for programming modes.")
+
+(defun prog-indent-sexp ()
+ "Indent the expression after point."
+ (interactive)
+ (let ((start (point))
+ (end (save-excursion (forward-sexp 1) (point))))
+ (indent-region start end nil)))
+
+(define-derived-mode prog-mode fundamental-mode "Prog"
+ "Major mode for editing programming language source code."
+ (set (make-local-variable 'require-final-newline) mode-require-final-newline)
+ (set (make-local-variable 'parse-sexp-ignore-comments) t)
+ ;; Any programming language is always written left to right.
+ (setq bidi-paragraph-direction 'left-to-right))
+
;; Making and deleting lines.
(defvar hard-newline (propertize "\n" 'hard t 'rear-nonsticky '(hard))
than the value of `fill-column' and ARG is nil."
(interactive "*P")
(barf-if-buffer-read-only)
- ;; Inserting a newline at the end of a line produces better redisplay in
- ;; try_window_id than inserting at the beginning of a line, and the textual
- ;; result is the same. So, if we're at beginning of line, pretend to be at
- ;; the end of the previous line.
- (let ((flag (and (not (bobp))
- (bolp)
- ;; Make sure no functions want to be told about
- ;; the range of the changes.
- (not after-change-functions)
- (not before-change-functions)
- ;; Make sure there are no markers here.
- (not (buffer-has-markers-at (1- (point))))
- (not (buffer-has-markers-at (point)))
- ;; Make sure no text properties want to know
- ;; where the change was.
- (not (get-char-property (1- (point)) 'modification-hooks))
- (not (get-char-property (1- (point)) 'insert-behind-hooks))
- (or (eobp)
- (not (get-char-property (point) 'insert-in-front-hooks)))
- ;; Make sure the newline before point isn't intangible.
- (not (get-char-property (1- (point)) 'intangible))
- ;; Make sure the newline before point isn't read-only.
- (not (get-char-property (1- (point)) 'read-only))
- ;; Make sure the newline before point isn't invisible.
- (not (get-char-property (1- (point)) 'invisible))
- ;; Make sure the newline before point has the same
- ;; properties as the char before it (if any).
- (< (or (previous-property-change (point)) -2)
- (- (point) 2))))
- (was-page-start (and (bolp)
- (looking-at page-delimiter)))
- (beforepos (point)))
- (if flag (backward-char 1))
- ;; Call self-insert so that auto-fill, abbrev expansion etc. happens.
- ;; Set last-command-event to tell self-insert what to insert.
- (let ((last-command-event ?\n)
- ;; Don't auto-fill if we have a numeric argument.
- ;; Also not if flag is true (it would fill wrong line);
- ;; there is no need to since we're at BOL.
- (auto-fill-function (if (or arg flag) nil auto-fill-function)))
- (unwind-protect
- (self-insert-command (prefix-numeric-value arg))
- ;; If we get an error in self-insert-command, put point at right place.
- (if flag (forward-char 1))))
- ;; Even if we did *not* get an error, keep that forward-char;
- ;; all further processing should apply to the newline that the user
- ;; thinks he inserted.
-
- ;; Mark the newline(s) `hard'.
- (if use-hard-newlines
- (set-hard-newline-properties
- (- (point) (prefix-numeric-value arg)) (point)))
- ;; If the newline leaves the previous line blank,
- ;; and we have a left margin, delete that from the blank line.
- (or flag
- (save-excursion
- (goto-char beforepos)
- (beginning-of-line)
- (and (looking-at "[ \t]$")
- (> (current-left-margin) 0)
- (delete-region (point) (progn (end-of-line) (point))))))
- ;; Indent the line after the newline, except in one case:
- ;; when we added the newline at the beginning of a line
- ;; which starts a page.
- (or was-page-start
- (move-to-left-margin nil t)))
+ ;; Call self-insert so that auto-fill, abbrev expansion etc. happens.
+ ;; Set last-command-event to tell self-insert what to insert.
+ (let* ((was-page-start (and (bolp) (looking-at page-delimiter)))
+ (beforepos (point))
+ (last-command-event ?\n)
+ ;; Don't auto-fill if we have a numeric argument.
+ (auto-fill-function (if arg nil auto-fill-function))
+ (postproc
+ ;; Do the rest in post-self-insert-hook, because we want to do it
+ ;; *before* other functions on that hook.
+ (lambda ()
+ ;; Mark the newline(s) `hard'.
+ (if use-hard-newlines
+ (set-hard-newline-properties
+ (- (point) (prefix-numeric-value arg)) (point)))
+ ;; If the newline leaves the previous line blank, and we
+ ;; have a left margin, delete that from the blank line.
+ (save-excursion
+ (goto-char beforepos)
+ (beginning-of-line)
+ (and (looking-at "[ \t]$")
+ (> (current-left-margin) 0)
+ (delete-region (point)
+ (line-end-position))))
+ ;; Indent the line after the newline, except in one case:
+ ;; when we added the newline at the beginning of a line which
+ ;; starts a page.
+ (or was-page-start
+ (move-to-left-margin nil t)))))
+ (unwind-protect
+ (progn
+ (add-hook 'post-self-insert-hook postproc)
+ (self-insert-command (prefix-numeric-value arg)))
+ ;; We first used let-binding to protect the hook, but that was naive
+ ;; since add-hook affects the symbol-default value of the variable,
+ ;; whereas the let-binding might only protect the buffer-local value.
+ (remove-hook 'post-self-insert-hook postproc)))
nil)
(defun set-hard-newline-properties (from to)
(interactive "*p")
(let* ((do-fill-prefix (and fill-prefix (bolp)))
(do-left-margin (and (bolp) (> (current-left-margin) 0)))
- (loc (point))
+ (loc (point-marker))
;; Don't expand an abbrev before point.
(abbrev-mode nil))
(newline n)
(if (looking-at "^[ \t]*\n\\'")
(delete-region (point) (point-max)))))
-(defun delete-trailing-whitespace ()
+(defun delete-trailing-whitespace (&optional start end)
"Delete all the trailing whitespace across the current buffer.
All whitespace after the last non-whitespace character in a line is deleted.
This respects narrowing, created by \\[narrow-to-region] and friends.
-A formfeed is not considered whitespace by this function."
- (interactive "*")
+A formfeed is not considered whitespace by this function.
+If the region is active, only delete whitespace within the region."
+ (interactive (progn
+ (barf-if-buffer-read-only)
+ (if (use-region-p)
+ (list (region-beginning) (region-end))
+ (list nil nil))))
(save-match-data
(save-excursion
- (goto-char (point-min))
- (while (re-search-forward "\\s-$" nil t)
- (skip-syntax-backward "-" (save-excursion (forward-line 0) (point)))
- ;; Don't delete formfeeds, even if they are considered whitespace.
- (save-match-data
- (if (looking-at ".*\f")
- (goto-char (match-end 0))))
- (delete-region (point) (match-end 0))))))
+ (let ((end-marker (copy-marker (or end (point-max))))
+ (start (or start (point-min))))
+ (goto-char start)
+ (while (re-search-forward "\\s-$" end-marker t)
+ (skip-syntax-backward "-" (save-excursion (forward-line 0) (point)))
+ ;; Don't delete formfeeds, even if they are considered whitespace.
+ (save-match-data
+ (if (looking-at ".*\f")
+ (goto-char (match-end 0))))
+ (delete-region (point) (match-end 0)))
+ (set-marker end-marker nil))))
+ ;; Return nil for the benefit of `write-file-functions'.
+ nil)
(defun newline-and-indent ()
"Insert a newline, then indent according to major mode.
(constrain-to-field nil orig-pos)))))
(defun just-one-space (&optional n)
- "Delete all spaces and tabs around point, leaving one space (or N spaces)."
+ "Delete all spaces and tabs around point, leaving one space (or N spaces).
+If N is negative, delete newlines as well."
(interactive "*p")
- (let ((orig-pos (point)))
- (skip-chars-backward " \t")
+ (unless n (setq n 1))
+ (let ((orig-pos (point))
+ (skip-characters (if (< n 0) " \t\n\r" " \t"))
+ (n (abs n)))
+ (skip-chars-backward skip-characters)
(constrain-to-field nil orig-pos)
- (dotimes (i (or n 1))
+ (dotimes (i n)
(if (= (following-char) ?\s)
(forward-char 1)
(insert ?\s)))
(delete-region
(point)
(progn
- (skip-chars-forward " \t")
+ (skip-chars-forward skip-characters)
(constrain-to-field nil orig-pos t)))))
\f
(defun beginning-of-buffer (&optional arg)
(overlay-recenter (point))
(recenter -3))))
+(defcustom delete-active-region t
+ "Whether single-char deletion commands delete an active region.
+This has an effect only if Transient Mark mode is enabled, and
+affects `delete-forward-char' and `delete-backward-char', though
+not `delete-char'.
+
+If the value is the symbol `kill', the active region is killed
+instead of deleted."
+ :type '(choice (const :tag "Delete active region" t)
+ (const :tag "Kill active region" kill)
+ (const :tag "Do ordinary deletion" nil))
+ :group 'editing
+ :version "24.1")
+
+(defun delete-backward-char (n &optional killflag)
+ "Delete the previous N characters (following if N is negative).
+If Transient Mark mode is enabled, the mark is active, and N is 1,
+delete the text in the region and deactivate the mark instead.
+To disable this, set `delete-active-region' to nil.
+
+Optional second arg KILLFLAG, if non-nil, means to kill (save in
+kill ring) instead of delete. Interactively, N is the prefix
+arg, and KILLFLAG is set if N is explicitly specified.
+
+In Overwrite mode, single character backward deletion may replace
+tabs with spaces so as to back over columns, unless point is at
+the end of the line."
+ (interactive "p\nP")
+ (unless (integerp n)
+ (signal 'wrong-type-argument (list 'integerp n)))
+ (cond ((and (use-region-p)
+ delete-active-region
+ (= n 1))
+ ;; If a region is active, kill or delete it.
+ (if (eq delete-active-region 'kill)
+ (kill-region (region-beginning) (region-end))
+ (delete-region (region-beginning) (region-end))))
+ ;; In Overwrite mode, maybe untabify while deleting
+ ((null (or (null overwrite-mode)
+ (<= n 0)
+ (memq (char-before) '(?\t ?\n))
+ (eobp)
+ (eq (char-after) ?\n)))
+ (let ((ocol (current-column)))
+ (delete-char (- n) killflag)
+ (save-excursion
+ (insert-char ?\s (- ocol (current-column)) nil))))
+ ;; Otherwise, do simple deletion.
+ (t (delete-char (- n) killflag))))
+
+(defun delete-forward-char (n &optional killflag)
+ "Delete the following N characters (previous if N is negative).
+If Transient Mark mode is enabled, the mark is active, and N is 1,
+delete the text in the region and deactivate the mark instead.
+To disable this, set `delete-active-region' to nil.
+
+Optional second arg KILLFLAG non-nil means to kill (save in kill
+ring) instead of delete. Interactively, N is the prefix arg, and
+KILLFLAG is set if N was explicitly specified."
+ (interactive "p\nP")
+ (unless (integerp n)
+ (signal 'wrong-type-argument (list 'integerp n)))
+ (cond ((and (use-region-p)
+ delete-active-region
+ (= n 1))
+ ;; If a region is active, kill or delete it.
+ (if (eq delete-active-region 'kill)
+ (kill-region (region-beginning) (region-end))
+ (delete-region (region-beginning) (region-end))))
+ ;; Otherwise, do simple deletion.
+ (t (delete-char n killflag))))
+
(defun mark-whole-buffer ()
"Put point at beginning and mark at end of buffer.
You probably should not use this function in Lisp programs;
(concat " in " (buffer-name buffer))
"")))
;; Read the argument, offering that number (if any) as default.
- (list (read-from-minibuffer (format (if default "Goto line%s (%s): "
- "Goto line%s: ")
- buffer-prompt
- default)
- nil nil t
- 'minibuffer-history
- default)
+ (list (read-number (format (if default "Goto line%s (%s): "
+ "Goto line%s: ")
+ buffer-prompt
+ default)
+ default)
buffer))))
;; Switch to the desired buffer, one way or another.
(if buffer
(re-search-forward "[\n\C-m]" nil 'end (1- line))
(forward-line (1- line)))))
+(defun count-words-region (start end)
+ "Print the number of words in the region.
+When called interactively, the word count is printed in echo area."
+ (interactive "r")
+ (let ((count 0))
+ (save-excursion
+ (save-restriction
+ (narrow-to-region start end)
+ (goto-char (point-min))
+ (while (forward-word 1)
+ (setq count (1+ count)))))
+ (if (called-interactively-p 'interactive)
+ (message "Region has %d words" count))
+ count))
+
(defun count-lines-region (start end)
"Print number of lines and characters in the region."
(interactive "r")
;; Initialize read-expression-map. It is defined at C level.
(let ((m (make-sparse-keymap)))
(define-key m "\M-\t" 'lisp-complete-symbol)
+ ;; Might as well bind TAB to completion, since inserting a TAB char is much
+ ;; too rarely useful.
+ (define-key m "\t" 'lisp-complete-symbol)
(set-keymap-parent m minibuffer-local-map)
(setq read-expression-map m))
-(defvar read-expression-history nil)
-
(defvar minibuffer-completing-symbol nil
"Non-nil means completing a Lisp symbol in the minibuffer.")
+(make-obsolete-variable 'minibuffer-completing-symbol nil "24.1" 'get)
(defvar minibuffer-default nil
"The current default value or list of default values in the minibuffer.
current-prefix-arg))
(if (null eval-expression-debug-on-error)
- (setq values (cons (eval eval-expression-arg) values))
+ (push (eval eval-expression-arg lexical-binding) values)
(let ((old-value (make-symbol "t")) new-value)
;; Bind debug-on-error to something unique so that we can
;; detect when evaled code changes it.
(let ((debug-on-error old-value))
- (setq values (cons (eval eval-expression-arg) values))
+ (push (eval eval-expression-arg lexical-binding) values)
(setq new-value debug-on-error))
;; If evaled code has changed the value of debug-on-error,
;; propagate that change to the global binding.
(if command-history
(error "Argument %d is beyond length of command history" arg)
(error "There are no previous complex commands to repeat")))))
+
+(defun read-extended-command ()
+ "Read command name to invoke in `execute-extended-command'."
+ (minibuffer-with-setup-hook
+ (lambda ()
+ (set (make-local-variable 'minibuffer-default-add-function)
+ (lambda ()
+ ;; Get a command name at point in the original buffer
+ ;; to propose it after M-n.
+ (with-current-buffer (window-buffer (minibuffer-selected-window))
+ (and (commandp (function-called-at-point))
+ (format "%S" (function-called-at-point)))))))
+ ;; Read a string, completing from and restricting to the set of
+ ;; all defined commands. Don't provide any initial input.
+ ;; Save the command read on the extended-command history list.
+ (completing-read
+ (concat (cond
+ ((eq current-prefix-arg '-) "- ")
+ ((and (consp current-prefix-arg)
+ (eq (car current-prefix-arg) 4)) "C-u ")
+ ((and (consp current-prefix-arg)
+ (integerp (car current-prefix-arg)))
+ (format "%d " (car current-prefix-arg)))
+ ((integerp current-prefix-arg)
+ (format "%d " current-prefix-arg)))
+ ;; This isn't strictly correct if `execute-extended-command'
+ ;; is bound to anything else (e.g. [menu]).
+ ;; It could use (key-description (this-single-command-keys)),
+ ;; but actually a prompt other than "M-x" would be confusing,
+ ;; because "M-x" is a well-known prompt to read a command
+ ;; and it serves as a shorthand for "Extended command: ".
+ "M-x ")
+ obarray 'commandp t nil 'extended-command-history)))
+
\f
(defvar minibuffer-history nil
"Default minibuffer history list.
(defun minibuffer-history-initialize ()
(setq minibuffer-text-before-history nil))
-(defun minibuffer-avoid-prompt (new old)
+(defun minibuffer-avoid-prompt (_new _old)
"A point-motion hook for the minibuffer, that moves point out of the prompt."
(constrain-to-field nil (point-max)))
`(lambda (cmd)
(minibuffer-history-isearch-pop-state cmd ,minibuffer-history-position)))
-(defun minibuffer-history-isearch-pop-state (cmd hist-pos)
+(defun minibuffer-history-isearch-pop-state (_cmd hist-pos)
"Restore the minibuffer history search state.
Go to the history element by the absolute history position HIST-POS."
(goto-history-element hist-pos))
(undo-list (list nil))
undo-adjusted-markers
some-rejected
- undo-elt undo-elt temp-undo-list delta)
+ undo-elt temp-undo-list delta)
(while undo-list-copy
(setq undo-elt (car undo-list-copy))
(let ((keep-this
(append minibuffer-default commands)
(cons minibuffer-default commands))))
-(defvar shell-delimiter-argument-list)
-(defvar shell-file-name-chars)
-(defvar shell-file-name-quote-list)
-
-(defun minibuffer-complete-shell-command ()
- "Dynamically complete shell command at point."
- (interactive)
- (require 'shell)
- (let ((comint-delimiter-argument-list shell-delimiter-argument-list)
- (comint-file-name-chars shell-file-name-chars)
- (comint-file-name-quote-list shell-file-name-quote-list))
- (run-hook-with-args-until-success 'shell-dynamic-complete-functions)))
+(declare-function shell-completion-vars "shell" ())
(defvar minibuffer-local-shell-command-map
(let ((map (make-sparse-keymap)))
(set-keymap-parent map minibuffer-local-map)
- (define-key map "\t" 'minibuffer-complete-shell-command)
+ (define-key map "\t" 'completion-at-point)
map)
"Keymap used for completing shell commands in minibuffer.")
The arguments are the same as the ones of `read-from-minibuffer',
except READ and KEYMAP are missing and HIST defaults
to `shell-command-history'."
+ (require 'shell)
(minibuffer-with-setup-hook
(lambda ()
+ (shell-completion-vars)
(set (make-local-variable 'minibuffer-default-add-function)
'minibuffer-default-add-shell-commands))
(apply 'read-from-minibuffer prompt initial-contents
Like `shell-command' but if COMMAND doesn't end in ampersand, adds `&'
surrounded by whitespace and executes the command asynchronously.
-The output appears in the buffer `*Async Shell Command*'."
+The output appears in the buffer `*Async Shell Command*'.
+
+In Elisp, you will often be better served by calling `start-process'
+directly, since it offers more control and does not impose the use of a
+shell (with its need to quote arguments)."
(interactive
(list
(read-shell-command "Async shell command: " nil nil
or buffer name to which to direct the command's standard error output.
If it is nil, error output is mingled with regular output.
In an interactive call, the variable `shell-command-default-error-buffer'
-specifies the value of ERROR-BUFFER."
+specifies the value of ERROR-BUFFER.
+
+In Elisp, you will often be better served by calling `call-process' or
+`start-process' directly, since it offers more control and does not impose
+the use of a shell (with its need to quote arguments)."
(interactive
(list
(error "Shell command in progress")))
(with-current-buffer buffer
(setq buffer-read-only nil)
- (erase-buffer)
+ ;; Setting buffer-read-only to nil doesn't suffice
+ ;; if some text has a non-nil read-only property,
+ ;; which comint sometimes adds for prompts.
+ (let ((inhibit-read-only t))
+ (erase-buffer))
(display-buffer buffer)
(setq default-directory directory)
(setq proc (start-process "Shell" buffer shell-file-name
(with-output-to-string
(with-current-buffer
standard-output
- (call-process shell-file-name nil t nil shell-command-switch command))))
+ (process-file shell-file-name nil t nil shell-command-switch command))))
(defun process-file (program &optional infile buffer display &rest args)
"Process files synchronously in a separate process.
(let ((fh (find-file-name-handler default-directory 'start-file-process)))
(if fh (apply fh 'start-file-process name buffer program program-args)
(apply 'start-process name buffer program program-args))))
-
+\f
+;;;; Process menu
+
+(defvar tabulated-list-format)
+(defvar tabulated-list-entries)
+(defvar tabulated-list-sort-key)
+(declare-function tabulated-list-init-header "tabulated-list" ())
+(declare-function tabulated-list-print "tabulated-list"
+ (&optional remember-pos))
+
+(defvar process-menu-query-only nil)
+
+(define-derived-mode process-menu-mode tabulated-list-mode "Process Menu"
+ "Major mode for listing the processes called by Emacs."
+ (setq tabulated-list-format [("Process" 15 t)
+ ("Status" 7 t)
+ ("Buffer" 15 t)
+ ("TTY" 12 t)
+ ("Command" 0 t)])
+ (make-local-variable 'process-menu-query-only)
+ (setq tabulated-list-sort-key (cons "Process" nil))
+ (add-hook 'tabulated-list-revert-hook 'list-processes--refresh nil t)
+ (tabulated-list-init-header))
+
+(defun list-processes--refresh ()
+ "Recompute the list of processes for the Process List buffer."
+ (setq tabulated-list-entries nil)
+ (dolist (p (process-list))
+ (when (or (not process-menu-query-only)
+ (process-query-on-exit-flag p))
+ (let* ((buf (process-buffer p))
+ (type (process-type p))
+ (name (process-name p))
+ (status (symbol-name (process-status p)))
+ (buf-label (if (buffer-live-p buf)
+ `(,(buffer-name buf)
+ face link
+ help-echo ,(concat "Visit buffer `"
+ (buffer-name buf) "'")
+ follow-link t
+ process-buffer ,buf
+ action process-menu-visit-buffer)
+ "--"))
+ (tty (or (process-tty-name p) "--"))
+ (cmd
+ (if (memq type '(network serial))
+ (let ((contact (process-contact p t)))
+ (if (eq type 'network)
+ (format "(%s %s)"
+ (if (plist-get contact :type)
+ "datagram"
+ "network")
+ (if (plist-get contact :server)
+ (format "server on %s"
+ (plist-get contact :server))
+ (format "connection to %s"
+ (plist-get contact :host))))
+ (format "(serial port %s%s)"
+ (or (plist-get contact :port) "?")
+ (let ((speed (plist-get contact :speed)))
+ (if speed
+ (format " at %s b/s" speed)
+ "")))))
+ (mapconcat 'identity (process-command p) " "))))
+ (push (list p (vector name status buf-label tty cmd))
+ tabulated-list-entries)))))
+
+(defun process-menu-visit-buffer (button)
+ (display-buffer (button-get button 'process-buffer)))
+
+(defun list-processes (&optional query-only buffer)
+ "Display a list of all processes.
+If optional argument QUERY-ONLY is non-nil, only processes with
+the query-on-exit flag set are listed.
+Any process listed as exited or signaled is actually eliminated
+after the listing is made.
+Optional argument BUFFER specifies a buffer to use, instead of
+\"*Process List\".
+The return value is always nil."
+ (interactive)
+ (or (fboundp 'process-list)
+ (error "Asynchronous subprocesses are not supported on this system"))
+ (unless (bufferp buffer)
+ (setq buffer (get-buffer-create "*Process List*")))
+ (with-current-buffer buffer
+ (process-menu-mode)
+ (setq process-menu-query-only query-only)
+ (list-processes--refresh)
+ (tabulated-list-print))
+ (display-buffer buffer)
+ nil)
\f
(defvar universal-argument-map
(let ((map (make-sparse-keymap)))
`universal-argument-other-key' uses this to discard those events
from (this-command-keys), and reread only the final command.")
-(defvar overriding-map-is-bound nil
- "Non-nil when `overriding-terminal-local-map' is `universal-argument-map'.")
-
-(defvar saved-overriding-map nil
+(defvar saved-overriding-map t
"The saved value of `overriding-terminal-local-map'.
That variable gets restored to this value on exiting \"universal
argument mode\".")
-(defun ensure-overriding-map-is-bound ()
- "Check `overriding-terminal-local-map' is `universal-argument-map'."
- (unless overriding-map-is-bound
+(defun save&set-overriding-map (map)
+ "Set `overriding-terminal-local-map' to MAP."
+ (when (eq saved-overriding-map t)
(setq saved-overriding-map overriding-terminal-local-map)
- (setq overriding-terminal-local-map universal-argument-map)
- (setq overriding-map-is-bound t)))
+ (setq overriding-terminal-local-map map)))
(defun restore-overriding-map ()
"Restore `overriding-terminal-local-map' to its saved value."
(setq overriding-terminal-local-map saved-overriding-map)
- (setq overriding-map-is-bound nil))
+ (setq saved-overriding-map t))
(defun universal-argument ()
"Begin a numeric argument for the following command.
(interactive)
(setq prefix-arg (list 4))
(setq universal-argument-num-events (length (this-command-keys)))
- (ensure-overriding-map-is-bound))
+ (save&set-overriding-map universal-argument-map))
;; A subsequent C-u means to multiply the factor by 4 if we've typed
;; nothing but C-u's; otherwise it means to terminate the prefix arg.
(t
(setq prefix-arg '-)))
(setq universal-argument-num-events (length (this-command-keys)))
- (ensure-overriding-map-is-bound))
+ (save&set-overriding-map universal-argument-map))
(defun digit-argument (arg)
"Part of the numeric argument for the next command.
(t
(setq prefix-arg digit))))
(setq universal-argument-num-events (length (this-command-keys)))
- (ensure-overriding-map-is-bound))
+ (save&set-overriding-map universal-argument-map))
;; For backward compatibility, minus with no modifiers is an ordinary
;; command if digits have already been entered.
(reset-this-command-lengths)
(restore-overriding-map))
\f
+
+(defvar filter-buffer-substring-functions nil
+ "Wrapper hook around `filter-buffer-substring'.
+The functions on this special hook are called with 4 arguments:
+ NEXT-FUN BEG END DELETE
+NEXT-FUN is a function of 3 arguments (BEG END DELETE)
+that performs the default operation. The other 3 arguments are like
+the ones passed to `filter-buffer-substring'.")
+
(defvar buffer-substring-filters nil
"List of filter functions for `filter-buffer-substring'.
Each function must accept a single argument, a string, and return
return value of `filter-buffer-substring'.
If this variable is nil, no filtering is performed.")
+(make-obsolete-variable 'buffer-substring-filters
+ 'filter-buffer-substring-functions "24.1")
-(defun filter-buffer-substring (beg end &optional delete noprops)
+(defun filter-buffer-substring (beg end &optional delete)
"Return the buffer substring between BEG and END, after filtering.
-The buffer substring is passed through each of the filter
-functions in `buffer-substring-filters', and the value from the
-last filter function is returned. If `buffer-substring-filters'
-is nil, the buffer substring is returned unaltered.
+The filtering is performed by `filter-buffer-substring-functions'.
If DELETE is non-nil, the text between BEG and END is deleted
from the buffer.
-If NOPROPS is non-nil, final string returned does not include
-text properties, while the string passed to the filters still
-includes text properties from the buffer text.
-
-Point is temporarily set to BEG before calling
-`buffer-substring-filters', in case the functions need to know
-where the text came from.
-
This function should be used instead of `buffer-substring',
`buffer-substring-no-properties', or `delete-and-extract-region'
when you want to allow filtering to take place. For example,
-major or minor modes can use `buffer-substring-filters' to
+major or minor modes can use `filter-buffer-substring-functions' to
extract characters that are special to a buffer, and should not
be copied into other buffers."
- (cond
- ((or delete buffer-substring-filters)
- (save-excursion
- (goto-char beg)
- (let ((string (if delete (delete-and-extract-region beg end)
- (buffer-substring beg end))))
- (dolist (filter buffer-substring-filters)
- (setq string (funcall filter string)))
- (if noprops
- (set-text-properties 0 (length string) nil string))
- string)))
- (noprops
- (buffer-substring-no-properties beg end))
- (t
- (buffer-substring beg end))))
+ (with-wrapper-hook filter-buffer-substring-functions (beg end delete)
+ (cond
+ ((or delete buffer-substring-filters)
+ (save-excursion
+ (goto-char beg)
+ (let ((string (if delete (delete-and-extract-region beg end)
+ (buffer-substring beg end))))
+ (dolist (filter buffer-substring-filters)
+ (setq string (funcall filter string)))
+ string)))
+ (t
+ (buffer-substring beg end)))))
;;;; Window system cut and paste hooks.
is put in the kill ring, to make the new kill available to other
programs.
-The function takes one or two arguments.
-The first argument, TEXT, is a string containing
-the text which should be made available.
-The second, optional, argument PUSH, has the same meaning as the
-similar argument to `x-set-cut-buffer', which see.")
+The function takes one argument, TEXT, which is a string containing
+the text which should be made available.")
(defvar interprogram-paste-function nil
"Function to call to get text cut from other programs.
(if yank-handler
(signal 'args-out-of-range
(list string "yank-handler specified for empty string"))))
- (when (and kill-do-not-save-duplicates
- (equal string (car kill-ring)))
- (setq replace t))
- (if (fboundp 'menu-bar-update-yank-menu)
- (menu-bar-update-yank-menu string (and replace (car kill-ring))))
+ (unless (and kill-do-not-save-duplicates
+ (equal string (car kill-ring)))
+ (if (fboundp 'menu-bar-update-yank-menu)
+ (menu-bar-update-yank-menu string (and replace (car kill-ring)))))
(when save-interprogram-paste-before-kill
(let ((interprogram-paste (and interprogram-paste-function
(funcall interprogram-paste-function))))
(when interprogram-paste
- (if (listp interprogram-paste)
- (dolist (s (nreverse interprogram-paste))
- (push s kill-ring))
- (push interprogram-paste kill-ring)))))
- (if (and replace kill-ring)
- (setcar kill-ring string)
- (push string kill-ring)
- (if (> (length kill-ring) kill-ring-max)
- (setcdr (nthcdr (1- kill-ring-max) kill-ring) nil)))
+ (dolist (s (if (listp interprogram-paste)
+ (nreverse interprogram-paste)
+ (list interprogram-paste)))
+ (unless (and kill-do-not-save-duplicates
+ (equal s (car kill-ring)))
+ (push s kill-ring))))))
+ (unless (and kill-do-not-save-duplicates
+ (equal string (car kill-ring)))
+ (if (and replace kill-ring)
+ (setcar kill-ring string)
+ (push string kill-ring)
+ (if (> (length kill-ring) kill-ring-max)
+ (setcdr (nthcdr (1- kill-ring-max) kill-ring) nil))))
(setq kill-ring-yank-pointer kill-ring)
(if interprogram-cut-function
- (funcall interprogram-cut-function string (not replace))))
+ (funcall interprogram-cut-function string)))
(set-advertised-calling-convention
'kill-new '(string &optional replace) "23.3")
(delete-char 1)))
(forward-char -1)
(setq count (1- count))))))
- (delete-backward-char
- (let ((skip (cond ((eq backward-delete-char-untabify-method 'hungry) " \t")
+ (let* ((skip (cond ((eq backward-delete-char-untabify-method 'hungry) " \t")
((eq backward-delete-char-untabify-method 'all)
- " \t\n\r"))))
- (if skip
- (let ((wh (- (point) (save-excursion (skip-chars-backward skip)
- (point)))))
- (+ arg (if (zerop wh) 0 (1- wh))))
- arg))
- killp))
+ " \t\n\r")))
+ (n (if skip
+ (let ((wh (- (point) (save-excursion (skip-chars-backward skip)
+ (point)))))
+ (+ arg (if (zerop wh) 0 (1- wh))))
+ arg)))
+ ;; Avoid warning about delete-backward-char
+ (with-no-warnings (delete-backward-char n killp))))
(defun zap-to-char (arg char)
"Kill up to and including ARGth occurrence of CHAR.
(interactive
(list (read-buffer "Append to buffer: " (other-buffer (current-buffer) t))
(region-beginning) (region-end)))
- (let ((oldbuf (current-buffer)))
- (let* ((append-to (get-buffer-create buffer))
- (windows (get-buffer-window-list append-to t t))
- point)
- (save-excursion
- (with-current-buffer append-to
- (setq point (point))
- (barf-if-buffer-read-only)
- (insert-buffer-substring oldbuf start end)
- (dolist (window windows)
- (when (= (window-point window) point)
- (set-window-point window (point)))))))))
+ (let* ((oldbuf (current-buffer))
+ (append-to (get-buffer-create buffer))
+ (windows (get-buffer-window-list append-to t t))
+ point)
+ (save-excursion
+ (with-current-buffer append-to
+ (setq point (point))
+ (barf-if-buffer-read-only)
+ (insert-buffer-substring oldbuf start end)
+ (dolist (window windows)
+ (when (= (window-point window) point)
+ (set-window-point window (point))))))))
(defun prepend-to-buffer (buffer start end)
"Prepend to specified buffer the text of the region.
(marker-position (mark-marker))
(signal 'mark-inactive nil)))
-(defcustom select-active-regions nil
- "If non-nil, an active region automatically sets the primary selection."
- :type 'boolean
- :group 'killing
- :version "23.1")
-
-(declare-function x-selection-owner-p "xselect.c" (&optional selection))
-
-;; Many places set mark-active directly, and several of them failed to also
-;; run deactivate-mark-hook. This shorthand should simplify.
(defsubst deactivate-mark (&optional force)
"Deactivate the mark by setting `mark-active' to nil.
Unless FORCE is non-nil, this function does nothing if Transient
Mark mode is disabled.
This function also runs `deactivate-mark-hook'."
(when (or transient-mark-mode force)
- ;; Copy the latest region into the primary selection, if desired.
- (and select-active-regions
- mark-active
- (display-selections-p)
- (x-selection-owner-p 'PRIMARY)
- (x-set-selection 'PRIMARY (buffer-substring-no-properties
- (region-beginning) (region-end))))
+ (when (and (if (eq select-active-regions 'only)
+ (eq (car-safe transient-mark-mode) 'only)
+ select-active-regions)
+ (region-active-p)
+ (display-selections-p))
+ ;; The var `saved-region-selection', if non-nil, is the text in
+ ;; the region prior to the last command modifying the buffer.
+ ;; Set the selection to that, or to the current region.
+ (cond (saved-region-selection
+ (x-set-selection 'PRIMARY saved-region-selection)
+ (setq saved-region-selection nil))
+ ((/= (region-beginning) (region-end))
+ (x-set-selection 'PRIMARY
+ (buffer-substring-no-properties
+ (region-beginning)
+ (region-end))))))
(if (and (null force)
(or (eq transient-mark-mode 'lambda)
(and (eq (car-safe transient-mark-mode) 'only)
(when (mark t)
(setq mark-active t)
(unless transient-mark-mode
- (setq transient-mark-mode 'lambda))
- (when (and select-active-regions
- (display-selections-p))
- (x-set-selection 'PRIMARY (current-buffer)))))
+ (setq transient-mark-mode 'lambda))))
(defun set-mark (pos)
"Set this buffer's mark to POS. Don't use this function!
(progn
(setq mark-active t)
(run-hooks 'activate-mark-hook)
- (when (and select-active-regions
- (display-selections-p))
- (x-set-selection 'PRIMARY (current-buffer)))
(set-marker (mark-marker) pos (current-buffer)))
;; Normally we never clear mark-active except in Transient Mark mode.
;; But when we actually clear out the mark value too, we must
(push-mark nil nomsg t)
(setq mark-active t)
(run-hooks 'activate-mark-hook)
- (and select-active-regions (display-selections-p)
- (x-set-selection 'PRIMARY (current-buffer)))
(unless nomsg
(message "Mark activated")))))
its earlier value."
(cond ((and shift-select-mode this-command-keys-shift-translated)
(unless (and mark-active
- (eq (car-safe transient-mark-mode) 'only))
- (setq transient-mark-mode
+ (eq (car-safe transient-mark-mode) 'only))
+ (setq transient-mark-mode
(cons 'only
(unless (eq transient-mark-mode 'lambda)
transient-mark-mode)))
\"mark.*active\" at the prompt, to see the documentation of
commands which are sensitive to the Transient Mark mode."
:global t
- :init-value (not noninteractive)
- :initialize 'custom-initialize-delay
- :group 'editing-basics)
-
-;; The variable transient-mark-mode is ugly: it can take on special
-;; values. Document these here.
-(defvar transient-mark-mode t
- "*Non-nil if Transient Mark mode is enabled.
-See the command `transient-mark-mode' for a description of this minor mode.
-
-Non-nil also enables highlighting of the region whenever the mark is active.
-The variable `highlight-nonselected-windows' controls whether to highlight
-all windows or just the selected window.
-
-Lisp programs may give this variable certain special values:
-
-- A value of `lambda' enables Transient Mark mode temporarily.
- It is disabled again after any subsequent action that would
- normally deactivate the mark (e.g. buffer modification).
-
-- A value of (only . OLDVAL) enables Transient Mark mode
- temporarily. After any subsequent point motion command that is
- not shift-translated, or any other action that would normally
- deactivate the mark (e.g. buffer modification), the value of
- `transient-mark-mode' is set to OLDVAL.")
+ ;; It's defined in C/cus-start, this stops the d-m-m macro defining it again.
+ :variable transient-mark-mode)
(defvar widen-automatically t
"Non-nil means it is ok for commands to call `widen' when they want to.
If `widen-automatically' is nil, these commands will do something else
as a fallback, and won't change the buffer bounds.")
+(defvar non-essential nil
+ "Whether the currently executing code is performing an essential task.
+This variable should be non-nil only when running code which should not
+disturb the user. E.g. it can be used to prevent Tramp from prompting the
+user for a password when we are simply scanning a set of files in the
+background or displaying possible completions before the user even asked
+for it.")
+
(defun pop-global-mark ()
"Pop off global mark ring and jump to the top location."
(interactive)
(insert (if use-hard-newlines hard-newline "\n")))
(line-move arg nil nil try-vscroll))
(if (called-interactively-p 'interactive)
- (condition-case nil
+ (condition-case err
(line-move arg nil nil try-vscroll)
- ((beginning-of-buffer end-of-buffer) (ding)))
+ ((beginning-of-buffer end-of-buffer)
+ (signal (car err) (cdr err))))
(line-move arg nil nil try-vscroll)))
nil)
(interactive "^p\np")
(or arg (setq arg 1))
(if (called-interactively-p 'interactive)
- (condition-case nil
+ (condition-case err
(line-move (- arg) nil nil try-vscroll)
- ((beginning-of-buffer end-of-buffer) (ding)))
+ ((beginning-of-buffer end-of-buffer)
+ (signal (car err) (cdr err))))
(line-move (- arg) nil nil try-vscroll))
nil)
"When non-nil, `line-move' moves point by visual lines.
This movement is based on where the cursor is displayed on the
screen, instead of relying on buffer contents alone. It takes
-into account variable-width characters and line continuation."
+into account variable-width characters and line continuation.
+If nil, `line-move' moves point by logical lines."
:type 'boolean
- :group 'editing-basics)
+ :group 'editing-basics
+ :version "23.1")
;; Returns non-nil if partial move was done.
(defun line-move-partial (arg noerror to-end)
;; When already vscrolled, we vscroll some more if we can,
;; or clear vscroll and move forward at end of tall image.
((> (setq vs (window-vscroll nil t)) 0)
-
- ;; If we are vscrolling an image at the top of the screen,
- ;; we could actually advance point if this yields space
- ;; below....
-
(when (> rbot 0)
(set-window-vscroll nil (+ vs (min rbot (frame-char-height))) t)))
;; If cursor just entered the bottom scroll margin, move forward,
;; This is the guts of next-line and previous-line.
;; Arg says how many lines to move.
;; The value is t if we can move the specified number of lines.
-(defun line-move-1 (arg &optional noerror to-end)
+(defun line-move-1 (arg &optional noerror _to-end)
;; Don't run any point-motion hooks, and disregard intangibility,
;; for intermediate positions.
(let ((inhibit-point-motion-hooks t)
(let (new
(old (point))
- (line-beg (save-excursion (beginning-of-line) (point)))
+ (line-beg (line-beginning-position))
(line-end
;; Compute the end of the line
;; ignoring effectively invisible newlines.
;; that will get us to the same place on the screen
;; but with a more reasonable buffer position.
(goto-char normal-location)
- (let ((line-beg (save-excursion (beginning-of-line) (point))))
+ (let ((line-beg (line-beginning-position)))
(while (and (not (bolp)) (invisible-p (1- (point))))
(goto-char (previous-char-property-change (point) line-beg))))))))
(let ((goal-column 0)
(line-move-visual nil))
(and (line-move arg t)
+ ;; With bidi reordering, we may not be at bol,
+ ;; so make sure we are.
+ (skip-chars-backward "^\n")
(not (bobp))
(progn
(while (and (not (bobp)) (invisible-p (1- (point))))
(define-globalized-minor-mode global-visual-line-mode
visual-line-mode turn-on-visual-line-mode
:lighter " vl")
-\f
-(defun scroll-other-window-down (lines)
- "Scroll the \"other window\" down.
-For more details, see the documentation for `scroll-other-window'."
- (interactive "P")
- (scroll-other-window
- ;; Just invert the argument's meaning.
- ;; We can do that without knowing which window it will be.
- (if (eq lines '-) nil
- (if (null lines) '-
- (- (prefix-numeric-value lines))))))
-
-(defun beginning-of-buffer-other-window (arg)
- "Move point to the beginning of the buffer in the other window.
-Leave mark at previous position.
-With arg N, put point N/10 of the way from the true beginning."
- (interactive "P")
- (let ((orig-window (selected-window))
- (window (other-window-for-scrolling)))
- ;; We use unwind-protect rather than save-window-excursion
- ;; because the latter would preserve the things we want to change.
- (unwind-protect
- (progn
- (select-window window)
- ;; Set point and mark in that window's buffer.
- (with-no-warnings
- (beginning-of-buffer arg))
- ;; Set point accordingly.
- (recenter '(t)))
- (select-window orig-window))))
-
-(defun end-of-buffer-other-window (arg)
- "Move point to the end of the buffer in the other window.
-Leave mark at previous position.
-With arg N, put point N/10 of the way from the true end."
- (interactive "P")
- ;; See beginning-of-buffer-other-window for comments.
- (let ((orig-window (selected-window))
- (window (other-window-for-scrolling)))
- (unwind-protect
- (progn
- (select-window window)
- (with-no-warnings
- (end-of-buffer arg))
- (recenter '(t)))
- (select-window orig-window))))
+
\f
(defun transpose-chars (arg)
"Interchange characters around point, moving forward one character.
;; Point is neither within nor adjacent to a word.
(not strict))
;; Look for preceding word in same line.
- (skip-syntax-backward not-syntaxes
- (save-excursion (beginning-of-line)
- (point)))
+ (skip-syntax-backward not-syntaxes (line-beginning-position))
(if (bolp)
;; No preceding word in same line.
;; Look for following word in same line.
(progn
- (skip-syntax-forward not-syntaxes
- (save-excursion (end-of-line)
- (point)))
+ (skip-syntax-forward not-syntaxes (line-end-position))
(setq start (point))
(skip-syntax-forward syntaxes)
(setq end (point)))
regexp)
:group 'fill)
-;; This function is used as the auto-fill-function of a buffer
-;; when Auto-Fill mode is enabled.
-;; It returns t if it really did any work.
-;; (Actually some major modes use a different auto-fill function,
-;; but this one is the default one.)
(defun do-auto-fill ()
+ "The default value for `normal-auto-fill-function'.
+This is the default auto-fill function, some major modes use a different one.
+Returns t if it really did any work."
(let (fc justify give-up
(fill-prefix fill-prefix))
(if (or (not (setq justify (current-justification)))
(or (null fill-prefix) (string= fill-prefix "")))
(let ((prefix
(fill-context-prefix
- (save-excursion (backward-paragraph 1) (point))
- (save-excursion (forward-paragraph 1) (point)))))
+ (save-excursion (fill-forward-paragraph -1) (point))
+ (save-excursion (fill-forward-paragraph 1) (point)))))
(and prefix (not (equal prefix ""))
;; Use auto-indentation rather than a guessed empty prefix.
(not (and fill-indent-according-to-mode
(put 'auto-fill-function 'safe-local-variable 'null)
;; FIXME: turn into a proper minor mode.
;; Add a global minor mode version of it.
-(defun auto-fill-mode (&optional arg)
+(define-minor-mode auto-fill-mode
"Toggle Auto Fill mode.
With ARG, turn Auto Fill mode on if and only if ARG is positive.
In Auto Fill mode, inserting a space at a column beyond `current-fill-column'
The value of `normal-auto-fill-function' specifies the function to use
for `auto-fill-function' when turning Auto Fill mode on."
- (interactive "P")
- (prog1 (setq auto-fill-function
- (if (if (null arg)
- (not auto-fill-function)
- (> (prefix-numeric-value arg) 0))
- normal-auto-fill-function
- nil))
- (force-mode-line-update)))
+ :variable (eq auto-fill-function normal-auto-fill-function))
;; This holds a document string used to document auto-fill-mode.
(defun auto-fill-function ()
(defvar overwrite-mode-binary (purecopy " Bin Ovwrt")
"The string displayed in the mode line when in binary overwrite mode.")
-(defun overwrite-mode (arg)
+(define-minor-mode overwrite-mode
"Toggle overwrite mode.
With prefix argument ARG, turn overwrite mode on if ARG is positive,
otherwise turn it off. In overwrite mode, printing characters typed
Before a tab, such characters insert until the tab is filled in.
\\[quoted-insert] still inserts characters in overwrite mode; this
is supposed to make it easier to insert characters when necessary."
- (interactive "P")
- (setq overwrite-mode
- (if (if (null arg) (not overwrite-mode)
- (> (prefix-numeric-value arg) 0))
- 'overwrite-mode-textual))
- (force-mode-line-update))
+ :variable (eq overwrite-mode 'overwrite-mode-textual))
-(defun binary-overwrite-mode (arg)
+(define-minor-mode binary-overwrite-mode
"Toggle binary overwrite mode.
With prefix argument ARG, turn binary overwrite mode on if ARG is
positive, otherwise turn it off. In binary overwrite mode, printing
Note that binary overwrite mode is not its own minor mode; it is a
specialization of overwrite mode, entered by setting the
`overwrite-mode' variable to `overwrite-mode-binary'."
- (interactive "P")
- (setq overwrite-mode
- (if (if (null arg)
- (not (eq overwrite-mode 'overwrite-mode-binary))
- (> (prefix-numeric-value arg) 0))
- 'overwrite-mode-binary))
- (force-mode-line-update))
+ :variable (eq overwrite-mode 'overwrite-mode-binary))
(define-minor-mode line-number-mode
"Toggle Line Number mode.
otherwise turn it off. When Size Indication mode is enabled, the
size of the accessible part of the buffer appears in the mode line."
:global t :group 'mode-line)
+
+(define-minor-mode auto-save-mode
+ "Toggle auto-saving of contents of current buffer.
+With prefix argument ARG, turn auto-saving on if positive, else off."
+ :variable ((and buffer-auto-save-file-name
+ ;; If auto-save is off because buffer has shrunk,
+ ;; then toggling should turn it on.
+ (>= buffer-saved-size 0))
+ . (lambda (val)
+ (setq buffer-auto-save-file-name
+ (cond
+ ((null val) nil)
+ ((and buffer-file-name auto-save-visited-file-name
+ (not buffer-read-only))
+ buffer-file-name)
+ (t (make-auto-save-file-name))))))
+ ;; If -1 was stored here, to temporarily turn off saving,
+ ;; turn it back on.
+ (and (< buffer-saved-size 0)
+ (setq buffer-saved-size 0)))
\f
(defgroup paren-blinking nil
"Blinking matching of parens and expressions."
:type 'boolean
:group 'paren-blinking)
+(defun blink-matching-check-mismatch (start end)
+ "Return whether or not START...END are matching parens.
+END is the current point and START is the blink position.
+START might be nil if no matching starter was found.
+Returns non-nil if we find there is a mismatch."
+ (let* ((end-syntax (syntax-after (1- end)))
+ (matching-paren (and (consp end-syntax)
+ (eq (syntax-class end-syntax) 5)
+ (cdr end-syntax))))
+ ;; For self-matched chars like " and $, we can't know when they're
+ ;; mismatched or unmatched, so we can only do it for parens.
+ (when matching-paren
+ (not (and start
+ (or
+ (eq (char-after start) matching-paren)
+ ;; The cdr might hold a new paren-class info rather than
+ ;; a matching-char info, in which case the two CDRs
+ ;; should match.
+ (eq matching-paren (cdr-safe (syntax-after start)))))))))
+
+(defvar blink-matching-check-function #'blink-matching-check-mismatch
+ "Function to check parentheses mismatches.
+The function takes two arguments (START and END) where START is the
+position just before the opening token and END is the position right after.
+START can be nil, if it was not found.
+The function should return non-nil if the two tokens do not match.")
+
(defun blink-matching-open ()
"Move cursor momentarily to the beginning of the sexp before point."
(interactive)
- (when (and (> (point) (point-min))
- blink-matching-paren
- ;; Verify an even number of quoting characters precede the close.
- (= 1 (logand 1 (- (point)
- (save-excursion
- (forward-char -1)
- (skip-syntax-backward "/\\")
- (point))))))
+ (when (and (not (bobp))
+ blink-matching-paren)
(let* ((oldpos (point))
- (message-log-max nil) ; Don't log messages about paren matching.
- (atdollar (eq (syntax-class (syntax-after (1- oldpos))) 8))
- (isdollar)
+ (message-log-max nil) ; Don't log messages about paren matching.
(blinkpos
(save-excursion
(save-restriction
(and parse-sexp-ignore-comments
(not blink-matching-paren-dont-ignore-comments))))
(condition-case ()
- (scan-sexps oldpos -1)
+ (progn
+ (forward-sexp -1)
+ ;; backward-sexp skips backward over prefix chars,
+ ;; so move back to the matching paren.
+ (while (and (< (point) (1- oldpos))
+ (let ((code (syntax-after (point))))
+ (or (eq (syntax-class code) 6)
+ (eq (logand 1048576 (car code))
+ 1048576))))
+ (forward-char 1))
+ (point))
(error nil))))))
- (matching-paren
- (and blinkpos
- ;; Not syntax '$'.
- (not (setq isdollar
- (eq (syntax-class (syntax-after blinkpos)) 8)))
- (let ((syntax (syntax-after blinkpos)))
- (and (consp syntax)
- (eq (syntax-class syntax) 4)
- (cdr syntax))))))
+ (mismatch (funcall blink-matching-check-function blinkpos oldpos)))
(cond
- ;; isdollar is for:
- ;; http://lists.gnu.org/archive/html/emacs-devel/2007-10/msg00871.html
- ((not (or (and isdollar blinkpos)
- (and atdollar (not blinkpos)) ; see below
- (eq matching-paren (char-before oldpos))
- ;; The cdr might hold a new paren-class info rather than
- ;; a matching-char info, in which case the two CDRs
- ;; should match.
- (eq matching-paren (cdr (syntax-after (1- oldpos))))))
- (if (minibufferp)
- (minibuffer-message " [Mismatched parentheses]")
- (message "Mismatched parentheses")))
- ((not blinkpos)
- (or blink-matching-paren-distance
- ;; Don't complain when `$' with no blinkpos, because it
- ;; could just be the first one typed in the buffer.
- atdollar
+ (mismatch
+ (if blinkpos
(if (minibufferp)
- (minibuffer-message " [Unmatched parenthesis]")
- (message "Unmatched parenthesis"))))
+ (minibuffer-message "Mismatched parentheses")
+ (message "Mismatched parentheses"))
+ (if (minibufferp)
+ (minibuffer-message "Unmatched parenthesis")
+ (message "Unmatched parenthesis"))))
+ ((not blinkpos) nil)
((pos-visible-in-window-p blinkpos)
;; Matching open within window, temporarily move to blinkpos but only
;; if `blink-matching-paren-on-screen' is non-nil.
(message "Matches %s"
(substring-no-properties open-paren-line-string)))))))))
-(setq blink-paren-function 'blink-matching-open)
+(defvar blink-paren-function 'blink-matching-open
+ "Function called, if non-nil, whenever a close parenthesis is inserted.
+More precisely, a char with closeparen syntax is self-inserted.")
+
+(defun blink-paren-post-self-insert-function ()
+ (when (and (eq (char-before) last-command-event) ; Sanity check.
+ (memq (char-syntax last-command-event) '(?\) ?\$))
+ blink-paren-function
+ (not executing-kbd-macro)
+ (not noninteractive)
+ ;; Verify an even number of quoting characters precede the close.
+ (= 1 (logand 1 (- (point)
+ (save-excursion
+ (forward-char -1)
+ (skip-syntax-backward "/\\")
+ (point))))))
+ (funcall blink-paren-function)))
+
+(add-hook 'post-self-insert-hook #'blink-paren-post-self-insert-function
+ ;; Most likely, this hook is nil, so this arg doesn't matter,
+ ;; but I use it as a reminder that this function usually
+ ;; likes to be run after others since it does `sit-for'.
+ 'append)
\f
;; This executes C-g typed while Emacs is waiting for a command.
;; Quitting out of a program does not go through here;
During execution of Lisp code, this character causes a quit directly.
At top-level, as an editor command, this simply beeps."
(interactive)
- (deactivate-mark)
+ ;; Avoid adding the region to the window selection.
+ (setq saved-region-selection nil)
+ (let (select-active-regions)
+ (deactivate-mark))
(if (fboundp 'kmacro-keyboard-quit)
(kmacro-keyboard-quit))
(setq defining-kbd-macro nil)
- (signal 'quit nil))
+ (let ((debug-on-quit nil))
+ (signal 'quit nil)))
(defvar buffer-quit-function nil
"Function to call to \"quit\" the current buffer, or nil if none.
or go back to just one window (by deleting all but the selected window)."
(interactive)
(cond ((eq last-command 'mode-exited) nil)
+ ((region-active-p)
+ (deactivate-mark))
((> (minibuffer-depth) 0)
(abort-recursive-edit))
(current-prefix-arg
nil)
- ((region-active-p)
- (deactivate-mark))
((> (recursion-depth) 0)
(exit-recursive-edit))
(buffer-quit-function
:version "23.2"
:group 'mail)
-(define-mail-user-agent 'sendmail-user-agent
- 'sendmail-user-agent-compose
- 'mail-send-and-exit)
-
(defun rfc822-goto-eoh ()
- ;; Go to header delimiter line in a mail message, following RFC822 rules
+ "If the buffer starts with a mail header, move point to the header's end.
+Otherwise, moves to `point-min'.
+The end of the header is the start of the next line, if there is one,
+else the end of the last line. This function obeys RFC822."
(goto-char (point-min))
(when (re-search-forward
"^\\([:\n]\\|[^: \t\n]+[ \t\n]\\)" nil 'move)
(goto-char (match-beginning 0))))
-(defun sendmail-user-agent-compose (&optional to subject other-headers continue
- switch-function yank-action
- send-actions)
- (if switch-function
- (let ((special-display-buffer-names nil)
- (special-display-regexps nil)
- (same-window-buffer-names nil)
- (same-window-regexps nil))
- (funcall switch-function "*mail*")))
- (let ((cc (cdr (assoc-string "cc" other-headers t)))
- (in-reply-to (cdr (assoc-string "in-reply-to" other-headers t)))
- (body (cdr (assoc-string "body" other-headers t))))
- (or (mail continue to subject in-reply-to cc yank-action send-actions)
- continue
- (error "Message aborted"))
- (save-excursion
- (rfc822-goto-eoh)
- (while other-headers
- (unless (member-ignore-case (car (car other-headers))
- '("in-reply-to" "cc" "body"))
- (insert (car (car other-headers)) ": "
- (cdr (car other-headers))
- (if use-hard-newlines hard-newline "\n")))
- (setq other-headers (cdr other-headers)))
- (when body
- (forward-line 1)
- (insert body))
- t)))
-
(defun compose-mail (&optional to subject other-headers continue
- switch-function yank-action send-actions)
+ switch-function yank-action send-actions
+ return-action)
"Start composing a mail message to send.
This uses the user's chosen mail composition package
as selected with the variable `mail-user-agent'.
original text has been inserted in this way.)
SEND-ACTIONS is a list of actions to call when the message is sent.
-Each action has the form (FUNCTION . ARGS)."
+Each action has the form (FUNCTION . ARGS).
+
+RETURN-ACTION, if non-nil, is an action for returning to the
+caller. It has the form (FUNCTION . ARGS). The function is
+called after the mail has been sent or put aside, and the mail
+buffer buried."
(interactive
(list nil nil nil current-prefix-arg))
warn-vars " "))))))
(let ((function (get mail-user-agent 'composefunc)))
- (funcall function to subject other-headers continue
- switch-function yank-action send-actions)))
+ (funcall function to subject other-headers continue switch-function
+ yank-action send-actions return-action)))
(defun compose-mail-other-window (&optional to subject other-headers continue
- yank-action send-actions)
+ yank-action send-actions
+ return-action)
"Like \\[compose-mail], but edit the outgoing message in another window."
- (interactive
- (list nil nil nil current-prefix-arg))
+ (interactive (list nil nil nil current-prefix-arg))
(compose-mail to subject other-headers continue
- 'switch-to-buffer-other-window yank-action send-actions))
-
+ 'switch-to-buffer-other-window yank-action send-actions
+ return-action))
(defun compose-mail-other-frame (&optional to subject other-headers continue
- yank-action send-actions)
+ yank-action send-actions
+ return-action)
"Like \\[compose-mail], but edit the outgoing message in another frame."
- (interactive
- (list nil nil nil current-prefix-arg))
+ (interactive (list nil nil nil current-prefix-arg))
(compose-mail to subject other-headers continue
- 'switch-to-buffer-other-frame yank-action send-actions))
+ 'switch-to-buffer-other-frame yank-action send-actions
+ return-action))
+
\f
(defvar set-variable-value-history nil
"History of values entered with `set-variable'.
(define-key map [left] 'previous-completion)
(define-key map [right] 'next-completion)
(define-key map "q" 'quit-window)
+ (define-key map "z" 'kill-this-buffer)
map)
"Local map for completion list buffers.")
where the completion should be inserted and END (if non-nil) is the end
of the text to replace. If END is nil, point is used instead.")
+(defvar completion-list-insert-choice-function #'completion--replace
+ "Function to use to insert the text chosen in *Completions*.
+Called with 3 arguments (BEG END TEXT), it should replace the text
+between BEG and END with TEXT. Expected to be set buffer-locally
+in the *Completions* buffer.")
+
(defvar completion-base-size nil
"Number of chars before point not involved in completion.
This is a local variable in the completion list buffer.
;; In case this is run via the mouse, give temporary modes such as
;; isearch a chance to turn off.
(run-hooks 'mouse-leave-buffer-hook)
- (let (buffer base-size base-position choice)
- (with-current-buffer (window-buffer (posn-window (event-start event)))
- (setq buffer completion-reference-buffer)
- (setq base-size completion-base-size)
- (setq base-position completion-base-position)
- (save-excursion
- (goto-char (posn-point (event-start event)))
- (let (beg end)
- (if (and (not (eobp)) (get-text-property (point) 'mouse-face))
- (setq end (point) beg (1+ (point))))
- (if (and (not (bobp)) (get-text-property (1- (point)) 'mouse-face))
- (setq end (1- (point)) beg (point)))
- (if (null beg)
- (error "No completion here"))
- (setq beg (previous-single-property-change beg 'mouse-face))
- (setq end (or (next-single-property-change end 'mouse-face)
- (point-max)))
- (setq choice (buffer-substring-no-properties beg end)))))
-
- (let ((owindow (selected-window)))
+ (with-current-buffer (window-buffer (posn-window (event-start event)))
+ (let ((buffer completion-reference-buffer)
+ (base-size completion-base-size)
+ (base-position completion-base-position)
+ (insert-function completion-list-insert-choice-function)
+ (choice
+ (save-excursion
+ (goto-char (posn-point (event-start event)))
+ (let (beg end)
+ (cond
+ ((and (not (eobp)) (get-text-property (point) 'mouse-face))
+ (setq end (point) beg (1+ (point))))
+ ((and (not (bobp))
+ (get-text-property (1- (point)) 'mouse-face))
+ (setq end (1- (point)) beg (point)))
+ (t (error "No completion here")))
+ (setq beg (previous-single-property-change beg 'mouse-face))
+ (setq end (or (next-single-property-change end 'mouse-face)
+ (point-max)))
+ (buffer-substring-no-properties beg end))))
+ (owindow (selected-window)))
+
+ (unless (buffer-live-p buffer)
+ (error "Destination buffer is dead"))
(select-window (posn-window (event-start event)))
(if (and (one-window-p t 'selected-frame)
(window-dedicated-p (selected-window)))
(or (window-dedicated-p (selected-window))
(bury-buffer)))
(select-window
- (or (and (buffer-live-p buffer)
- (get-buffer-window buffer 0))
- owindow)))
-
- (choose-completion-string
- choice buffer
- (or base-position
- (when base-size
- ;; Someone's using old completion code that doesn't know
- ;; about base-position yet.
- (list (+ base-size (with-current-buffer buffer (field-beginning)))))
- ;; If all else fails, just guess.
- (with-current-buffer buffer
- (list (choose-completion-guess-base-position choice)))))))
+ (or (get-buffer-window buffer 0)
+ owindow))
+
+ (with-current-buffer buffer
+ (choose-completion-string
+ choice buffer
+ (or base-position
+ (when base-size
+ ;; Someone's using old completion code that doesn't know
+ ;; about base-position yet.
+ (list (+ base-size (field-beginning))))
+ ;; If all else fails, just guess.
+ (list (choose-completion-guess-base-position choice)))
+ insert-function)))))
;; Delete the longest partial match for STRING
;; that can be found before POINT.
If all functions in the list return nil, that means to use
the default method of inserting the completion in BUFFER.")
-(defun choose-completion-string (choice &optional buffer base-position)
+(defun choose-completion-string (choice &optional
+ buffer base-position insert-function)
"Switch to BUFFER and insert the completion choice CHOICE.
BASE-POSITION, says where to insert the completion."
;; If BUFFER is a minibuffer, barf unless it's the currently
;; active minibuffer.
(if (and mini-p
- (or (not (active-minibuffer-window))
- (not (equal buffer
+ (not (and (active-minibuffer-window)
+ (equal buffer
(window-buffer (active-minibuffer-window))))))
(error "Minibuffer is not active for completion")
;; Set buffer so buffer-local choose-completion-string-functions works.
;; and indeed unused. The last used to be `base-size', so we
;; keep it to try and avoid breaking old code.
choice buffer base-position nil)
+ ;; This remove-text-properties should be unnecessary since `choice'
+ ;; comes from buffer-substring-no-properties.
+ ;;(remove-text-properties 0 (lenth choice) '(mouse-face nil) choice)
;; Insert the completion into the buffer where it was requested.
- (delete-region (or (car base-position) (point))
- (or (cadr base-position) (point)))
- (insert choice)
- (remove-text-properties (- (point) (length choice)) (point)
- '(mouse-face nil))
- ;; Update point in the window that BUFFER is showing in.
+ (funcall (or insert-function completion-list-insert-choice-function)
+ (or (car base-position) (point))
+ (or (cadr base-position) (point))
+ choice)
+ ;; Update point in the window that BUFFER is showing in.
(let ((window (get-buffer-window buffer t)))
(set-window-point window (point)))
;; If completing for the minibuffer, exit it with this choice.
0 (or completion-base-size 0)))))))
(with-current-buffer standard-output
(let ((base-size completion-base-size) ;Read before killing localvars.
- (base-position completion-base-position))
+ (base-position completion-base-position)
+ (insert-fun completion-list-insert-choice-function))
(completion-list-mode)
(set (make-local-variable 'completion-base-size) base-size)
- (set (make-local-variable 'completion-base-position) base-position))
+ (set (make-local-variable 'completion-base-position) base-position)
+ (set (make-local-variable 'completion-list-insert-choice-function)
+ insert-fun))
(set (make-local-variable 'completion-reference-buffer) mainbuf)
(if base-dir (setq default-directory base-dir))
;; Maybe insert help string.
;; These functions -- which are not commands -- each add one modifier
;; to the following event.
-(defun event-apply-alt-modifier (ignore-prompt)
+(defun event-apply-alt-modifier (_ignore-prompt)
"\\<function-key-map>Add the Alt modifier to the following event.
For example, type \\[event-apply-alt-modifier] & to enter Alt-&."
(vector (event-apply-modifier (read-event) 'alt 22 "A-")))
-(defun event-apply-super-modifier (ignore-prompt)
+(defun event-apply-super-modifier (_ignore-prompt)
"\\<function-key-map>Add the Super modifier to the following event.
For example, type \\[event-apply-super-modifier] & to enter Super-&."
(vector (event-apply-modifier (read-event) 'super 23 "s-")))
-(defun event-apply-hyper-modifier (ignore-prompt)
+(defun event-apply-hyper-modifier (_ignore-prompt)
"\\<function-key-map>Add the Hyper modifier to the following event.
For example, type \\[event-apply-hyper-modifier] & to enter Hyper-&."
(vector (event-apply-modifier (read-event) 'hyper 24 "H-")))
-(defun event-apply-shift-modifier (ignore-prompt)
+(defun event-apply-shift-modifier (_ignore-prompt)
"\\<function-key-map>Add the Shift modifier to the following event.
For example, type \\[event-apply-shift-modifier] & to enter Shift-&."
(vector (event-apply-modifier (read-event) 'shift 25 "S-")))
-(defun event-apply-control-modifier (ignore-prompt)
+(defun event-apply-control-modifier (_ignore-prompt)
"\\<function-key-map>Add the Ctrl modifier to the following event.
For example, type \\[event-apply-control-modifier] & to enter Ctrl-&."
(vector (event-apply-modifier (read-event) 'control 26 "C-")))
-(defun event-apply-meta-modifier (ignore-prompt)
+(defun event-apply-meta-modifier (_ignore-prompt)
"\\<function-key-map>Add the Meta modifier to the following event.
For example, type \\[event-apply-meta-modifier] & to enter Meta-&."
(vector (event-apply-modifier (read-event) 'meta 27 "M-")))
(if (if (eq normal-erase-is-backspace 'maybe)
(and (not noninteractive)
(or (memq system-type '(ms-dos windows-nt))
+ (memq window-system '(ns))
(and (memq window-system '(x))
(fboundp 'x-backspace-delete-keys-p)
(x-backspace-delete-keys-p))
normal-erase-is-backspace)
1 0)))))
-(defun normal-erase-is-backspace-mode (&optional arg)
+(define-minor-mode normal-erase-is-backspace-mode
"Toggle the Erase and Delete mode of the Backspace and Delete keys.
With numeric ARG, turn the mode on if and only if ARG is positive.
have both Backspace, Delete and F1 keys.
See also `normal-erase-is-backspace'."
- (interactive "P")
- (let ((enabled (or (and arg (> (prefix-numeric-value arg) 0))
- (not (or arg
- (eq 1 (terminal-parameter
- nil 'normal-erase-is-backspace)))))))
- (set-terminal-parameter nil 'normal-erase-is-backspace
- (if enabled 1 0))
+ :variable (eq (terminal-parameter
+ nil 'normal-erase-is-backspace) 1)
+ (let ((enabled (eq 1 (terminal-parameter
+ nil 'normal-erase-is-backspace))))
(cond ((or (memq window-system '(x w32 ns pc))
(memq system-type '(ms-dos windows-nt)))
- (let* ((bindings
- `(([M-delete] [M-backspace])
- ([C-M-delete] [C-M-backspace])
- ([?\e C-delete] [?\e C-backspace])))
- (old-state (lookup-key local-function-key-map [delete])))
+ (let ((bindings
+ `(([M-delete] [M-backspace])
+ ([C-M-delete] [C-M-backspace])
+ ([?\e C-delete] [?\e C-backspace]))))
(if enabled
(progn
- (define-key local-function-key-map [delete] [?\C-d])
+ (define-key local-function-key-map [delete] [deletechar])
(define-key local-function-key-map [kp-delete] [?\C-d])
(define-key local-function-key-map [backspace] [?\C-?])
(dolist (b bindings)
(keyboard-translate ?\C-h ?\C-h)
(keyboard-translate ?\C-? ?\C-?))))
- (run-hooks 'normal-erase-is-backspace-hook)
(if (called-interactively-p 'interactive)
(message "Delete key deletes %s"
(if (eq 1 (terminal-parameter nil 'normal-erase-is-backspace))
buffer-invisibility-spec)
(setq buffer-invisibility-spec nil)))
\f
-;; 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."
- (lexical-let ((fun fun) (args1 args))
- (lambda (&rest args2) (apply fun (append args1 args2)))))
-
-;; This function is here rather than in subr.el because it uses CL.
-(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")))
- ;; 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.
- `(labels ((runrestofhook (,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).
- (lexical-let ((funs ,funs)
- (global ,global))
- (if (consp funs)
- (if (eq t (car funs))
- (runrestofhook
- (append global (cdr funs)) nil ,argssym)
- (apply (car funs)
- (lambda (&rest ,argssym)
- (runrestofhook (cdr funs) global ,argssym))
- ,argssym))
- ;; Once there are no more functions on the hook, run
- ;; the original body.
- (apply (lambda ,args ,@body) ,argssym)))))
- (runrestofhook ,var
- ;; The global part of the hook, if any.
- ,(if (symbolp var)
- `(if (local-variable-p ',var)
- (default-value ',var)))
- (list ,@args)))))
-\f
;; Minibuffer prompt stuff.
-;(defun minibuffer-prompt-modification (start end)
-; (error "You cannot modify the prompt"))
-;
-;
-;(defun minibuffer-prompt-insertion (start end)
-; (let ((inhibit-modification-hooks t))
-; (delete-region start end)
-; ;; Discard undo information for the text insertion itself
-; ;; and for the text deletion.above.
-; (when (consp buffer-undo-list)
-; (setq buffer-undo-list (cddr buffer-undo-list)))
-; (message "You cannot modify the prompt")))
-;
-;
-;(setq minibuffer-prompt-properties
-; (list 'modification-hooks '(minibuffer-prompt-modification)
-; 'insert-in-front-hooks '(minibuffer-prompt-insertion)))
-;
+;;(defun minibuffer-prompt-modification (start end)
+;; (error "You cannot modify the prompt"))
+;;
+;;
+;;(defun minibuffer-prompt-insertion (start end)
+;; (let ((inhibit-modification-hooks t))
+;; (delete-region start end)
+;; ;; Discard undo information for the text insertion itself
+;; ;; and for the text deletion.above.
+;; (when (consp buffer-undo-list)
+;; (setq buffer-undo-list (cddr buffer-undo-list)))
+;; (message "You cannot modify the prompt")))
+;;
+;;
+;;(setq minibuffer-prompt-properties
+;; (list 'modification-hooks '(minibuffer-prompt-modification)
+;; 'insert-in-front-hooks '(minibuffer-prompt-insertion)))
\f
;;;; Problematic external packages.
(provide 'simple)
-;; arch-tag: 24af67c0-2a49-44f6-b3b1-312d8b570dfd
;;; simple.el ends here
HCoop / bpt / emacs.git / blobdiff