From d1d8788fd071e60bbc844bd34c2a9d7f216826b5 Mon Sep 17 00:00:00 2001
From: yamaoka <yamaoka>
Date: Sun, 2 Feb 2003 05:03:04 +0000
Subject: [PATCH] Synch to Oort Gnus.

---
 lisp/ChangeLog   |    8 ++++++++
 lisp/gnus-art.el |   30 +++++++++++++++++-------------
 2 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 03bafff..854ccd8 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -5,6 +5,14 @@
 
 2003-02-02  Jesper Harder  <harder@ifa.au.dk>
 
+	* gnus-art.el (gnus-button-handle-describe-key): Implement it.
+	(gnus-button-alist): Fix regexp for describe-key.
+	(gnus-button-handle-describe-function)
+	(gnus-button-handle-describe-variable)
+	(gnus-button-handle-apropos, gnus-button-handle-apropos-command)
+	(gnus-button-handle-apropos-variable)
+	(gnus-button-handle-apropos-documentation): Docstring fix.
+
 	* gnus-util.el (gnus-kill-buffer): Use get-buffer.
 
 2003-02-01  Lars Magne Ingebrigtsen  <larsi@gnus.org>
diff --git a/lisp/gnus-art.el b/lisp/gnus-art.el
index 00e47d3..4570864 100644
--- a/lisp/gnus-art.el
+++ b/lisp/gnus-art.el
@@ -5972,40 +5972,43 @@ respectivly."
 (defvar gnus-button-handle-describe-prefix "^\\(C-h\\|<?[Ff]1>?\\)")
 
 (defun gnus-button-handle-describe-function (url)
-  "Call describe-function when pushing the corresponding URL button."
+  "Call `describe-function' when pushing the corresponding URL button."
   (describe-function
    (intern
     (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
 
 (defun gnus-button-handle-describe-variable (url)
-  "Call describe-variable when pushing the corresponding URL button."
+  "Call `describe-variable' when pushing the corresponding URL button."
   (describe-variable
    (intern
     (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
 
-;; FIXME: Is is possible to implement this?  Else it should be removed here
-;; and in `gnus-button-alist'.
 (defun gnus-button-handle-describe-key (url)
-  "Call describe-key when pushing the corresponding URL button."
-  (error "not implemented"))
+  "Call `describe-key' when pushing the corresponding URL button."
+  (let* ((key-string
+	  (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))
+	 (keys (ignore-errors (eval `(kbd ,key-string)))))
+    (if keys
+	(describe-key keys)
+      (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
 
 (defun gnus-button-handle-apropos (url)
-  "Call apropos when pushing the corresponding URL button."
+  "Call `apropos' when pushing the corresponding URL button."
   (apropos (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
 
 (defun gnus-button-handle-apropos-command (url)
-  "Call apropos when pushing the corresponding URL button."
+  "Call `apropos' when pushing the corresponding URL button."
   (apropos-command
    (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
 
 (defun gnus-button-handle-apropos-variable (url)
-  "Call apropos when pushing the corresponding URL button."
+  "Call `apropos' when pushing the corresponding URL button."
   (funcall
    (if (fboundp 'apropos-variable) 'apropos-variable 'apropos)
    (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
 
 (defun gnus-button-handle-apropos-documentation (url)
-  "Call apropos when pushing the corresponding URL button."
+  "Call `apropos' when pushing the corresponding URL button."
   (funcall
    (if (fboundp 'apropos-documentation) 'apropos-documentation 'apropos)
    (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
@@ -6097,9 +6100,10 @@ positives are possible."
      0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
     ("\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+v[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+RET"
      0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
-    ("\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+k[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+" 0
-     ;; this regexp needs to be fixed!
-     (>= gnus-button-emacs-level 9) gnus-button-handle-describe-key 2)
+    ("`\\(\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+k[ \t\n]+\\([^']+\\)\\)'" 1
+     ;; Unlike the other regexps we really have to require quoting
+     ;; here to determine where it ends.
+     (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
     ;; This is how URLs _should_ be embedded in text...
     ("<URL: *\\([^<>]*\\)>" 1 t gnus-button-embedded-url 1)
     ;; Raw URLs.
-- 
1.7.10.4