Allow 'M-<' in the minibuffer to behave more logically

* doc/lispref/minibuf.texi (Completion Commands)
(Text from Minibuffer): Document it.

* lisp/minibuffer.el (minibuffer-beginning-of-buffer): New command
(bug#3447).
(map): Bind it.

1 files changed, 11 insertions, 0 deletions

diff --git a/doc/lispref/minibuf.texi b/doc/lispref/minibuf.texi
index cfea336a9e5..a9d6e83cf85 100644
--- a/doc/lispref/minibuf.texi
+++ b/doc/lispref/minibuf.texi
@@ -333,6 +333,9 @@ default, it makes the following bindings:
 @item @key{RET}
 @code{exit-minibuffer}
 
+@item @key{M-<}
+@code{minibuffer-beginning-of-buffer}
+
 @item @kbd{C-g}
 @code{abort-recursive-edit}
 
@@ -1248,6 +1251,14 @@ combines this keymap with either @code{minibuffer-local-completion-map}
 or @code{minibuffer-local-must-match-map}.
 @end defvar
 
+@defvar minibuffer-beginning-of-buffer-movement
+If non-@code{nil}, the @kbd{M-<} command will move to the end of the
+prompt if point is after the end of the prompt.  If point is at or
+before the end of the prompt, move to the start of the buffer.  If
+this variable is @code{nil}, the command behaves like
+@code{beginning-of-buffer}.
+@end defvar
+
 
 @node High-Level Completion
 @subsection High-Level Completion Functions