(xemacs.info)Minibuffer Edit

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6.2 Editing in the Minibuffer
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The minibuffer is an XEmacs buffer (albeit a peculiar one), and the
usual XEmacs commands are available for editing the text of an argument
you are entering.

   Since <RET> in the minibuffer is defined to exit the minibuffer, you
can't use it to insert a newline in the minibuffer.  To do that, type
`C-o' or `C-q C-j'.  (Recall that a newline is really the character
control-J.)

   The minibuffer has its own window which always has space on the
screen but acts as if it were not there when the minibuffer is not in
use.  When the minibuffer is in use, its window is just like the
others; you can switch to another window with `C-x o', edit text in
other windows and perhaps even visit more files, before returning to the
minibuffer to submit the argument.  You can kill text in another window,
return to the minibuffer window, and then yank the text to use it in the
argument.  Note: Windows.

   There are some restrictions on the use of the minibuffer window,
however.  You cannot switch buffers in it--the minibuffer and its
window are permanently attached.  Also, you cannot split or kill the
minibuffer window. But you can make it taller in the normal fashion with
`C-x ^'.  If you enable Resize-Minibuffer mode, then the minibuffer
window expands vertically as necessary to hold the text that you put in
the minibuffer.  Use `M-x resize-minibuffer-mode' to enable or disable
this minor mode (Note: Minor Modes).

   If while in the minibuffer you issue a command that displays help
text of any sort in another window, you can use the `C-M-v' command
while in the minibuffer to scroll the help text.  This lasts until you
exit the minibuffer.  This feature is especially useful if a completing
minibuffer gives you a list of possible completions.  Note: Other
Window.

   If the variable `minibuffer-confirm-incomplete' is `t', you are
asked for confirmation if there is no known completion for the text you
typed. For example, if you attempted to visit a non-existent file, the
minibuffer might read:
             Find File: chocolate_bar.c [no completions, confirm]
   If you press `Return' again, that confirms the filename. Otherwise,
you can continue editing it.

   XEmacs supports recursive use of the minibuffer.  However, it is easy
to do this by accident (because of autorepeating keyboards, for example)
and get confused.  Therefore, most XEmacs commands that use the
minibuffer refuse to operate if the minibuffer window is selected.  If
the minibuffer is active but you have switched to a different window,
recursive use of the minibuffer is allowed--if you know enough to try
to do this, you probably will not get confused.

   If you set the variable `enable-recursive-minibuffers' to a
non-`nil', recursive use of the minibuffer is always allowed.