Function: font-lock-fontify-block

font-lock-fontify-block is an interactive and byte-compiled function defined in font-lock.el.gz.

Signature

(font-lock-fontify-block &optional ARG)

Documentation

Fontify some lines the way font-lock-fontify-buffer would.

The lines could be a function or paragraph, or a specified number of lines. If ARG is given, fontify that many lines before and after point, or 16 lines if no ARG is given and font-lock-mark-block-function is nil. If font-lock-mark-block-function non-nil and no ARG is given, it is used to delimit the region to fontify.

Probably introduced at or before Emacs version 19.31.

Key Bindings

Source Code

;; Defined in /usr/src/emacs/lisp/font-lock.el.gz
(defun font-lock-fontify-block (&optional arg)
  "Fontify some lines the way `font-lock-fontify-buffer' would.
The lines could be a function or paragraph, or a specified number of lines.
If ARG is given, fontify that many lines before and after point, or 16 lines if
no ARG is given and `font-lock-mark-block-function' is nil.
If `font-lock-mark-block-function' non-nil and no ARG is given, it is used to
delimit the region to fontify."
  (interactive "P")
  (let ((inhibit-point-motion-hooks t)
	deactivate-mark)
    ;; Make sure we have the right `font-lock-keywords' etc.
    (if (not font-lock-mode) (font-lock-set-defaults))
    (save-mark-and-excursion
      (save-match-data
	(condition-case error-data
	    (if (or arg (not font-lock-mark-block-function))
		(let ((lines (if arg (prefix-numeric-value arg) 16)))
		  (font-lock-fontify-region
		   (save-excursion (forward-line (- lines)) (point))
		   (save-excursion (forward-line lines) (point))))
	      (funcall font-lock-mark-block-function)
	      (font-lock-fontify-region (point) (mark)))
	  ((error quit) (message "Fontifying block...%s" error-data)))))))