Add a keybinding to the help menu to display manuals

* lisp/help.el (help-for-help-internal): Add a keybinding to
prompt for and display a manual (bug#43956).

diff --git a/etc/NEWS b/etc/NEWS
index cc8733c2c07e82006bd5f8ef4f77d6ef4779bc03..071edc5208aac00733c600ab6b66cfea7b9d244a 100644 (file)
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -562,6 +562,11 @@ skipped.
 +++
 *** New command 'describe-keymap' describes keybindings in a keymap.
 
+---
+*** New keybinding in 'help-for-help' to display a manual.
+The 'R' keybinding after 'C-h C-h' will prompt for a manual name and
+then display it.
+
 +++
 ** New command 'lossage-size'.
 It allows users to set the maximum number of keystrokes and commands

diff --git a/lisp/help.el b/lisp/help.el
index edef78d2075ebb41df7441877f15c0ee18d2e9bd..9b7355c6b63c4e84b1bd7419423436a2e5ca922d 100644 (file)
--- a/lisp/help.el
+++ b/lisp/help.el
@@ -101,6 +101,7 @@
     (define-key map "p" 'finder-by-keyword)
     (define-key map "P" 'describe-package)
     (define-key map "r" 'info-emacs-manual)
+    (define-key map "R" 'info-display-manual)
     (define-key map "s" 'describe-syntax)
     (define-key map "t" 'help-with-tutorial)
     (define-key map "w" 'where-is)
@@ -223,6 +224,7 @@ o SYMBOL    Display the given function or variable's documentation and value.
 p TOPIC     Find packages matching a given topic keyword.
 P PACKAGE   Describe the given Emacs Lisp package.
 r           Display the Emacs manual in Info mode.
+R           Prompt for a manual and then display it in Info mode.
 s           Display contents of current syntax table, plus explanations.
 S SYMBOL    Show the section for the given symbol in the Info manual
               for the programming language used in this buffer.