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declare smobs in alloc.c
[bpt/emacs.git]
/
lisp
/
help-at-pt.el
diff --git
a/lisp/help-at-pt.el
b/lisp/help-at-pt.el
index
126afbf
..
7f424f7
100644
(file)
--- a/
lisp/help-at-pt.el
+++ b/
lisp/help-at-pt.el
@@
-1,16
+1,16
@@
;;; help-at-pt.el --- local help through the keyboard
;;; help-at-pt.el --- local help through the keyboard
-;; Copyright (C) 2003
, 2004, 2005, 2006, 2007, 2008
Free Software Foundation, Inc.
+;; Copyright (C) 2003
-2014
Free Software Foundation, Inc.
;; Author: Luc Teirlinck <teirllm@auburn.edu>
;; Keywords: help
;; This file is part of GNU Emacs.
;; Author: Luc Teirlinck <teirllm@auburn.edu>
;; Keywords: help
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software
;
you can redistribute it and/or modify
+;; GNU Emacs is free software
:
you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation
; either version 3, or (at your option)
-;; any later version.
+;; the Free Software Foundation
, either version 3 of the License, or
+;;
(at your option)
any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
@@
-18,9
+18,7
@@
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Commentary:
@@
-63,20
+61,25
@@
property, or nil, is returned.
If KBD is non-nil, `kbd-help' is used instead, and any
`help-echo' property is ignored. In this case, the return value
can also be t, if that is the value of the `kbd-help' property."
If KBD is non-nil, `kbd-help' is used instead, and any
`help-echo' property is ignored. In this case, the return value
can also be t, if that is the value of the `kbd-help' property."
- (let* ((prop (if kbd 'kbd-help 'help-echo))
- (pair (get-char-property-and-overlay (point) prop))
- (val (car pair))
- (ov (cdr pair)))
- (if (functionp val)
- (funcall val (selected-window) (if ov ov (current-buffer)) (point))
- (eval val))))
+ (save-excursion
+ (let* ((prop (if kbd 'kbd-help 'help-echo))
+ (pair (get-char-property-and-overlay (point) prop))
+ (pair (if (car pair) pair
+ (unless (bobp)
+ (backward-char)
+ (get-char-property-and-overlay (point) prop))))
+ (val (car pair))
+ (ov (cdr pair)))
+ (if (functionp val)
+ (funcall val (selected-window) (if ov ov (current-buffer)) (point))
+ (eval val)))))
;;;###autoload
(defun help-at-pt-kbd-string ()
"Return the keyboard help string at point.
If the `kbd-help' text or overlay property at point produces a
;;;###autoload
(defun help-at-pt-kbd-string ()
"Return the keyboard help string at point.
If the `kbd-help' text or overlay property at point produces a
-string, return it. Otherwise, use the `help-echo' property.
If
-this produces no string either, return nil."
+string, return it. Otherwise, use the `help-echo' property.
+
If
this produces no string either, return nil."
(let ((kbd (help-at-pt-string t))
(echo (help-at-pt-string)))
(if (and kbd (not (eq kbd t))) kbd echo)))
(let ((kbd (help-at-pt-string t))
(echo (help-at-pt-string)))
(if (and kbd (not (eq kbd t))) kbd echo)))
@@
-106,7
+109,7
@@
internally to enable `help-at-pt-display-when-idle'. Do not set it
yourself.")
(defcustom help-at-pt-timer-delay 1
yourself.")
(defcustom help-at-pt-timer-delay 1
- "
*
Delay before displaying local help.
+ "Delay before displaying local help.
This is used if `help-at-pt-display-when-idle' is enabled.
The value may be an integer or floating point number.
This is used if `help-at-pt-display-when-idle' is enabled.
The value may be an integer or floating point number.
@@
-148,7
+151,7
@@
This is done by setting a timer, if none is currently active."
;;;###autoload
(defcustom help-at-pt-display-when-idle 'never
;;;###autoload
(defcustom help-at-pt-display-when-idle 'never
- "
*
Automatically show local help on point-over.
+ "Automatically show local help on point-over.
If the value is t, the string obtained from any `kbd-help' or
`help-echo' property at point is automatically printed in the
echo area, if nothing else is already displayed there, or after a
If the value is t, the string obtained from any `kbd-help' or
`help-echo' property at point is automatically printed in the
echo area, if nothing else is already displayed there, or after a
@@
-237,7
+240,13
@@
properties, to enable buffer local values."
(catch 'found
(dolist (prop help-at-pt-display-when-idle)
(if (get-char-property (point) prop)
(catch 'found
(dolist (prop help-at-pt-display-when-idle)
(if (get-char-property (point) prop)
- (throw 'found t))))))
+ (throw 'found t)))
+ (unless (bobp)
+ (save-excursion
+ (backward-char)
+ (dolist (prop help-at-pt-display-when-idle)
+ (if (get-char-property (point) prop)
+ (throw 'found t))))))))
(or (not (current-message))
(string= (current-message) "Quit"))
(display-local-help t)))
(or (not (current-message))
(string= (current-message) "Quit"))
(display-local-help t)))
@@
-346,11
+355,10
@@
rarely happens in practice."
Print the help found there using `display-local-help'. Adjacent
areas with different non-nil help-echo properties are considered
different regions. With numeric argument ARG, behaves like
Print the help found there using `display-local-help'. Adjacent
areas with different non-nil help-echo properties are considered
different regions. With numeric argument ARG, behaves like
-`scan-buf-next-region' with argument -ARG.
.
"
+`scan-buf-next-region' with argument -ARG."
(interactive "p")
(scan-buf-move-to-region 'help-echo (- arg) 'scan-buf-move-hook))
(provide 'help-at-pt)
(interactive "p")
(scan-buf-move-to-region 'help-echo (- arg) 'scan-buf-move-hook))
(provide 'help-at-pt)
-;;; arch-tag: d0b8b86d-d23f-45d0-a82d-208d6205a583
;;; help-at-pt.el ends here
;;; help-at-pt.el ends here