Reduce use of (require 'cl).

[bpt/emacs.git] / lisp / electric.el

diff --git a/lisp/electric.el b/lisp/electric.el
index 1c4b34e..5f14455 100644 (file)
--- a/lisp/electric.el
+++ b/lisp/electric.el
@@ -38,8 +38,6 @@
 
 ;;; Code:
 
-(eval-when-compile (require 'cl))
-
 ;; This loop is the guts for non-standard modes which retain control
 ;; until some event occurs.  It is a `do-forever', the only way out is
 ;; to throw.  It assumes that you have set up the keymap, window, and
@@ -215,6 +213,7 @@ point right after that char, and it should return t to cause indentation,
   ;; it looks challenging.
   (let (pos)
     (when (and
+           electric-indent-mode
            ;; Don't reindent while inserting spaces at beginning of line.
            (or (not (memq last-command-event '(?\s ?\t)))
                (save-excursion (skip-chars-backward " \t") (not (bolp))))
@@ -260,9 +259,9 @@ With a prefix argument ARG, enable Electric Indent mode if ARG is
 positive, and disable it otherwise.  If called from Lisp, enable
 the mode if ARG is omitted or nil.
 
-Electric Indent mode is a global minor mode.  When enabled,
-reindentation is triggered whenever you insert a character listed
-in `electric-indent-chars'."
+This is a global minor mode.  When enabled, it reindents whenever
+the hook `electric-indent-functions' returns non-nil, or you
+insert a character from `electric-indent-chars'."
   :global t
   :group 'electricity
   (if (not electric-indent-mode)
@@ -288,6 +287,8 @@ in `electric-indent-chars'."
 (defcustom electric-pair-pairs
   '((?\" . ?\"))
   "Alist of pairs that should be used regardless of major mode."
+  :group 'electricity
+  :version "24.1"
   :type '(repeat (cons character character)))
 
 (defcustom electric-pair-skip-self t
@@ -296,6 +297,8 @@ When inserting a closing paren character right before the same character,
 just skip that character instead, so that hitting ( followed by ) results
 in \"()\" rather than \"())\".
 This can be convenient for people who find it easier to hit ) than C-f."
+  :group 'electricity
+  :version "24.1"
   :type 'boolean)
 
 (defun electric-pair-post-self-insert-function ()
@@ -360,7 +363,9 @@ the mode if ARG is omitted or nil.
 
 Electric Pair mode is a global minor mode.  When enabled, typing
 an open parenthesis automatically inserts the corresponding
-closing parenthesis.  \(Likewise for brackets, etc.)"
+closing parenthesis.  \(Likewise for brackets, etc.)
+
+See options `electric-pair-pairs' and `electric-pair-skip-self'."
   :global t
   :group 'electricity
   (if electric-pair-mode
@@ -375,8 +380,8 @@ closing parenthesis.  \(Likewise for brackets, etc.)"
   "List of rules saying where to automatically insert newlines.
 Each rule has the form (CHAR . WHERE) where CHAR is the char
 that was just inserted and WHERE specifies where to insert newlines
-and can be: nil, `before', `after', `around', or a function that returns
-one of those symbols.")
+and can be: nil, `before', `after', `around', or a function of no
+arguments that returns one of those symbols.")
 
 (defun electric-layout-post-self-insert-function ()
   (let* ((rule (cdr (assq last-command-event electric-layout-rules)))
@@ -387,16 +392,16 @@ one of those symbols.")
                (not (nth 8 (save-excursion (syntax-ppss pos)))))
       (let ((end (copy-marker (point) t)))
         (goto-char pos)
-        (case (if (functionp rule) (funcall rule) rule)
+        (pcase (if (functionp rule) (funcall rule) rule)
           ;; FIXME: we used `newline' down here which called
           ;; self-insert-command and ran post-self-insert-hook recursively.
           ;; It happened to make electric-indent-mode work automatically with
           ;; electric-layout-mode (at the cost of re-indenting lines
           ;; multiple times), but I'm not sure it's what we want.
-          (before (goto-char (1- pos)) (skip-chars-backward " \t")
+          (`before (goto-char (1- pos)) (skip-chars-backward " \t")
                   (unless (bolp) (insert "\n")))
-          (after  (insert "\n"))       ; FIXME: check eolp before inserting \n?
-          (around (save-excursion
+          (`after  (insert "\n"))      ; FIXME: check eolp before inserting \n?
+          (`around (save-excursion
                     (goto-char (1- pos)) (skip-chars-backward " \t")
                     (unless (bolp) (insert "\n")))
                   (insert "\n")))      ; FIXME: check eolp before inserting \n?
@@ -404,7 +409,11 @@ one of those symbols.")
 
 ;;;###autoload
 (define-minor-mode electric-layout-mode
-  "Automatically insert newlines around some chars."
+  "Automatically insert newlines around some chars.
+With a prefix argument ARG, enable Electric Layout mode if ARG is
+positive, and disable it otherwise.  If called from Lisp, enable
+the mode if ARG is omitted or nil.
+The variable `electric-layout-rules' says when and how to insert newlines."
   :global t
   :group 'electricity
   (if electric-layout-mode