Variable: completion-preview-exact-match-only

completion-preview-exact-match-only is a customizable variable defined in completion-preview.el.gz.

Value

nil

Documentation

Whether to show completion preview only when there is an exact match.

If this option is non-nil, Completion Preview mode only shows the preview when there is exactly one completion candidate that matches the symbol at point. Otherwise, if this option is nil, when there are multiple matching candidates the preview shows the first candidate, and you can cycle between the candidates with M-x completion-preview-next-candidate (completion-preview-next-candidate) and M-x completion-preview-prev-candidate (completion-preview-prev-candidate).

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-exact-match-only nil
  "Whether to show completion preview only when there is an exact match.

If this option is non-nil, Completion Preview mode only shows the
preview when there is exactly one completion candidate that
matches the symbol at point.  Otherwise, if this option is nil,
when there are multiple matching candidates the preview shows the
first candidate, and you can cycle between the candidates with
\\[completion-preview-next-candidate] and
\\[completion-preview-prev-candidate]."
  :type 'boolean
  :version "30.1")