* lisp/face-remap.el: Use lexical-binding.

(text-scale-adjust): Improve docstring.  Use itself for the temporary
overlay-map bindings, so as to repeat the "Use..." message each time.

1 files changed, 16 insertions, 17 deletions

diff --git a/lisp/face-remap.el b/lisp/face-remap.el
index 09503d7c154..baf1eeb389d 100644
--- a/lisp/face-remap.el
+++ b/lisp/face-remap.el
@@ -1,4 +1,4 @@
-;;; face-remap.el --- Functions for managing `face-remapping-alist'
+;;; face-remap.el --- Functions for managing `face-remapping-alist'  -*- lexical-binding: t -*-
 ;;
 ;; Copyright (C) 2008-2012 Free Software Foundation, Inc.
 ;;
@@ -285,7 +285,9 @@ See `text-scale-increase' for more details."
 ;;;###autoload (define-key ctl-x-map [(control ?0)] 'text-scale-adjust)
 ;;;###autoload
 (defun text-scale-adjust (inc)
-  "Increase or decrease the height of the default face in the current buffer.
+  "Adjust the height of the default face by INC.
+
+INC may be passed as a numeric prefix argument.
 
 The actual adjustment made depends on the final component of the
 key-binding used to invoke the command, with all modifiers removed:
@@ -294,9 +296,11 @@ key-binding used to invoke the command, with all modifiers removed:
    -      Decrease the default face height by one step
    0      Reset the default face height to the global default
 
-Then, continue to read input events and further adjust the face
-height as long as the input event read (with all modifiers removed)
-is one of the above.
+When adjusting with `+' or `-', continue to read input events and
+further adjust the face height as long as the input event read
+\(with all modifiers removed) is `+' or `-'.
+
+When adjusting with `0', immediately finish.
 
 Each step scales the height of the default face by the variable
 `text-scale-mode-step' (a negative number of steps decreases the
@@ -309,8 +313,7 @@ even when it is bound in a non-top-level keymap.  For binding in
 a top-level keymap, `text-scale-increase' or
 `text-scale-decrease' may be more appropriate."
   (interactive "p")
-  (let ((first t)
-	(ev last-command-event)
+  (let ((ev last-command-event)
 	(echo-keystrokes nil))
     (let* ((base (event-basic-type ev))
            (step
@@ -320,19 +323,15 @@ a top-level keymap, `text-scale-increase' or
               (?0 0)
               (t inc))))
       (text-scale-increase step)
-      ;; FIXME: do it after every "iteration of the loop".
-      (message "+,-,0 for further adjustment: ")
+      ;; (unless (zerop step)
+      (message "Use +,-,0 for further adjustment")
       (set-temporary-overlay-map
        (let ((map (make-sparse-keymap)))
          (dolist (mods '(() (control)))
-           (define-key map (vector (append mods '(?-))) 'text-scale-decrease)
-           (define-key map (vector (append mods '(?+))) 'text-scale-increase)
-           ;; = is unshifted + on most keyboards.
-           (define-key map (vector (append mods '(?=))) 'text-scale-increase)
-           (define-key map (vector (append mods '(?0)))
-             (lambda () (interactive) (text-scale-increase 0))))
-         map)
-       t))))
+           (dolist (key '(?- ?+ ?= ?0)) ;; = is often unshifted +.
+             (define-key map (vector (append mods (list key)))
+               (lambda () (interactive) (text-scale-adjust (abs inc))))))
+         map))))) ;; )
 
 
 ;; ----------------------------------------------------------------