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master 170faae: Add new command apropos-function (Bug#41021)

From: Stefan Kangas
Subject: master 170faae: Add new command apropos-function (Bug#41021)
Date: Mon, 10 Aug 2020 09:34:01 -0400 (EDT)

branch: master
commit 170faae31b13defc35a26ee6429dcb82066a6a66
Author: Stefan Kangas <stefankangas@gmail.com>
Commit: Stefan Kangas <stefankangas@gmail.com>

    Add new command apropos-function (Bug#41021)
    * lisp/apropos.el (apropos-function): New command.
    * etc/NEWS: Announce it.
 etc/NEWS        |  3 +++
 lisp/apropos.el | 14 ++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/etc/NEWS b/etc/NEWS
index db23741..ddb42fb 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -529,6 +529,9 @@ prefix on the Subject line in various languages.
 These new navigation commands are bound to 'n' and 'p' in
+*** New command 'apropos-function'.
+This works like 'C-u M-x apropos-command' but is more discoverable.
 ** CC Mode
 *** Added support for Doxygen documentation style.
diff --git a/lisp/apropos.el b/lisp/apropos.el
index 2566d44..6d8c784 100644
--- a/lisp/apropos.el
+++ b/lisp/apropos.el
@@ -543,6 +543,20 @@ will be buffer-local when set."
                                  (and (local-variable-if-set-p symbol)
                                       (get symbol 'variable-documentation)))))
+(defun apropos-function (pattern)
+  "Show functions that match PATTERN.
+PATTERN can be a word, a list of words (separated by spaces),
+or a regexp (using some regexp special characters).  If it is a word,
+search for matches for that word as a substring.  If it is a list of words,
+search for matches for any two (or more) of those words.
+This is the same as running `apropos-command' with a \\[universal-argument] 
+or a non-nil `apropos-do-all' argument."
+  (interactive (list (apropos-read-pattern "function")))
+  (apropos-command pattern t))
 ;; For auld lang syne:
 (defalias 'command-apropos 'apropos-command)

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