(apropos-variable): New command.

(apropos-command): New arg JUST-VARS.

diff --git a/lisp/apropos.el b/lisp/apropos.el
index 314e68ba898f0cfc216a13d604c535900f4d5f5b..3c5bdb52e1a8e7d2d9789aab49bf63c609ddac91 100644 (file)
--- a/lisp/apropos.el
+++ b/lisp/apropos.el
@@ -138,20 +138,25 @@ This looks good, but slows down the commands several times."
   (setq major-mode 'apropos-mode
        mode-name "Apropos"))
 
+;;;###autoload
+(defun apropos-variable (regexp)
+  (interactive (list (read-string "Apropos variable (regexp): ")))
+  (apropos-command regexp nil t))
 
 ;; For auld lang syne:
 ;;;###autoload
 (fset 'command-apropos 'apropos-command)
 ;;;###autoload
-(defun apropos-command (apropos-regexp &optional do-all)
+(defun apropos-command (apropos-regexp &optional do-all just-vars)
   "Show commands (interactively callable functions) that match REGEXP.
 With optional prefix ARG, or if `apropos-do-all' is non-nil, also show
-variables."
-  (interactive (list (read-string (concat "Apropos command "
-                                         (if (or current-prefix-arg
-                                                 apropos-do-all)
-                                             "or variable ")
-                                         "(regexp): "))
+variables.  If JUST-VARS is non-nil, show only variables."
+  (interactive (list (read-string (concat
+                                  "Apropos command "
+                                  (if (or current-prefix-arg
+                                          apropos-do-all)
+                                      "or variable ")
+                                  "(regexp): "))
                     current-prefix-arg))
   (let ((message
         (let ((standard-output (get-buffer-create "*Apropos*")))
@@ -162,7 +167,8 @@ variables."
                            (if do-all
                                (lambda (symbol) (or (commandp symbol)
                                                     (user-variable-p symbol)))
-                             'commandp)))
+                             (if just-vars 'user-variable-p
+                               'commandp))))
     (if (apropos-print
         t
         (lambda (p)
@@ -170,10 +176,11 @@ variables."
             (while p
               (setcar p (list
                          (setq symbol (car p))
-                         (if (commandp symbol)
-                             (if (setq doc (documentation symbol t))
-                                 (substring doc 0 (string-match "\n" doc))
-                               "(not documented)"))
+                         (if (or do-all (not just-vars))
+                             (if (commandp symbol)
+                                 (if (setq doc (documentation symbol t))
+                                     (substring doc 0 (string-match "\n" doc))
+                                   "(not documented)")))
                          (and do-all
                               (user-variable-p symbol)
                               (if (setq doc (documentation-property