Variable: minibuffer-default-prompt-format
minibuffer-default-prompt-format is a customizable variable defined in
minibuffer.el.gz.
Value
" (default %s)"
Documentation
Format string used to output "default" values.
When prompting for input, there will often be a default value, leading to prompts like "Number of articles (default 50): ". The "default" part of that prompt is controlled by this variable, and can be set to, for instance, " [%s]" if you want a shorter displayed prompt, or "", if you don't want to display the default at all.
This variable is used by the format-prompt function.
This variable was added, or its default value changed, in Emacs 28.1.
Probably introduced at or before Emacs version 28.1.
Source Code
;; Defined in /usr/src/emacs/lisp/minibuffer.el.gz
(defcustom minibuffer-default-prompt-format " (default %s)"
"Format string used to output \"default\" values.
When prompting for input, there will often be a default value,
leading to prompts like \"Number of articles (default 50): \".
The \"default\" part of that prompt is controlled by this
variable, and can be set to, for instance, \" [%s]\" if you want
a shorter displayed prompt, or \"\", if you don't want to display
the default at all.
This variable is used by the `format-prompt' function."
:version "28.1"
:type 'string)