emerge.el: Move the `defvar's to the top level.

[gnu-emacs] / lisp / help-mode.el

diff --git a/lisp/help-mode.el b/lisp/help-mode.el
index 8b0284089fc3d1651c7801e4c68b7dce31a01fa4..eac7caad0cadbde38c9bcd88b088706572e4baa0 100644 (file)
--- a/lisp/help-mode.el
+++ b/lisp/help-mode.el
@@ -1,7 +1,7 @@
 ;;; help-mode.el --- `help-mode' used by *Help* buffers
 
-;; Copyright (C) 1985, 1986, 1993, 1994, 1998, 1999, 2000, 2001, 2002, 2004
-;;   Free Software Foundation, Inc.
+;; Copyright (C) 1985, 1986, 1993, 1994, 1998, 1999, 2000, 2001, 2002,
+;;   2003, 2004, 2005 Free Software Foundation, Inc.
 
 ;; Maintainer: FSF
 ;; Keywords: help, internal
@@ -20,8 +20,8 @@
 
 ;; 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., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
 
 ;;; Commentary:
 
@@ -169,6 +169,18 @@ The format is (FUNCTION ARGS...).")
                     (goto-char (cdr location))))
   'help-echo (purecopy"mouse-2, RET: find variable's definition"))
 
+(define-button-type 'help-face-def
+  :supertype 'help-xref
+  'help-function (lambda (fun file)
+                  (require 'find-func)
+                  ;; Don't use find-function-noselect because it follows
+                  ;; aliases (which fails for built-in functions).
+                  (let ((location
+                         (find-function-search-for-symbol fun 'defface file)))
+                    (pop-to-buffer (car location))
+                    (goto-char (cdr location))))
+  'help-echo (purecopy "mouse-2, RET: find face's definition"))
+
 \f
 ;;;###autoload
 (defun help-mode ()
@@ -184,7 +196,7 @@ Commands:
   (view-mode)
   (make-local-variable 'view-no-disable-on-exit)
   (setq view-no-disable-on-exit t)
-  (run-hooks 'help-mode-hook))
+  (run-mode-hooks 'help-mode-hook))
 
 ;;;###autoload
 (defun help-mode-setup ()
@@ -376,9 +388,10 @@ that."
 ;;;                            (pop-to-buffer (car location))
 ;;;                            (goto-char (cdr location))))
                          (help-xref-button 8 'help-function-def sym))
-                        ((facep sym)
-                         (if (save-match-data (looking-at "[ \t\n]+face\\W"))
-                             (help-xref-button 8 'help-face sym)))
+                        ((and
+                           (facep sym)
+                           (save-match-data (looking-at "[ \t\n]+face\\W")))
+                          (help-xref-button 8 'help-face sym))
                          ((and (boundp sym) (fboundp sym))
                           ;; We can't intuit whether to use the
                           ;; variable or function doc -- supply both.
@@ -618,5 +631,5 @@ For the cross-reference format, see `help-make-xrefs'."
 
 (provide 'help-mode)
 
-;;; arch-tag: 850954ae-3725-4cb4-8e91-0bf6d52d6b0b
+;; arch-tag: 850954ae-3725-4cb4-8e91-0bf6d52d6b0b
 ;;; help-mode.el ends here