Variable: completion-preview-minimum-symbol-length
completion-preview-minimum-symbol-length is a customizable variable
defined in completion-preview.el.gz.
Value
3
Documentation
Minimum length of the symbol at point for showing completion preview.
If this is nil rather than a number of characters, show the preview also after non-symbol characters, such as punctuation or whitespace.
This variable was added, or its default value changed, in Emacs 30.1.
Source Code
;; Defined in /usr/src/emacs/lisp/completion-preview.el.gz
(defcustom completion-preview-minimum-symbol-length 3
"Minimum length of the symbol at point for showing completion preview.
If this is nil rather than a number of characters, show the preview also
after non-symbol characters, such as punctuation or whitespace."
:type '(choice (natnum :tag "Minimum number of symbol characters")
(const :tag "Disable minimum symbol length requirement" nil))
:version "30.1")