Variable: hi-lock-highlight-range

hi-lock-highlight-range is a customizable variable defined in hi-lock.el.gz.

Value

2000000

Documentation

Size of area highlighted by hi-lock when font-lock not active.

Font-lock is not active in buffers that do their own highlighting, such as the buffer created by list-colors-display. In those buffers hi-lock patterns will only be applied over a range of hi-lock-highlight-range characters. If font-lock is active then highlighting will be applied throughout the buffer.

Probably introduced at or before Emacs version 28.1.

Source Code

;; Defined in /usr/src/emacs/lisp/hi-lock.el.gz
(defcustom hi-lock-highlight-range 2000000
  "Size of area highlighted by hi-lock when font-lock not active.
Font-lock is not active in buffers that do their own highlighting,
such as the buffer created by `list-colors-display'.  In those buffers
hi-lock patterns will only be applied over a range of
`hi-lock-highlight-range' characters.  If font-lock is active then
highlighting will be applied throughout the buffer."
  :type 'integer
  :group 'hi-lock)