Variable: font-lock-mode
font-lock-mode is a buffer-local variable defined in font-core.el.gz.
Documentation
Non-nil if Font-Lock mode is enabled.
Use the command font-lock-mode(var)/font-lock-mode(fun) to change this variable.
Probably introduced at or before Emacs version 19.29.
Key Bindings
Source Code
;; Defined in /usr/src/emacs/lisp/font-core.el.gz
(define-minor-mode font-lock-mode
"Toggle syntax highlighting in this buffer (Font Lock mode).
When Font Lock mode is enabled, text is fontified as you type it:
- Comments are displayed in `font-lock-comment-face';
- Strings are displayed in `font-lock-string-face';
- Certain other expressions are displayed in other faces
according to the value of the variable `font-lock-keywords'.
To customize the faces (colors, fonts, etc.) used by Font Lock for
fontifying different parts of buffer text, use \\[customize-face].
You can enable Font Lock mode in any major mode automatically by
turning on in the major mode's hook. For example, put in your
~/.emacs:
(add-hook \\='c-mode-hook \\='turn-on-font-lock)
Alternatively, you can use Global Font Lock mode to automagically
turn on Font Lock mode in buffers whose major mode supports it
and whose major mode is one of `font-lock-global-modes'. For
example, put in your ~/.emacs:
(global-font-lock-mode t)
Where major modes support different levels of fontification, you
can use the variable `font-lock-maximum-decoration' to specify
which level you generally prefer. When you turn Font Lock mode
on/off the buffer is fontified/defontified.
To add your own highlighting for some major mode, and modify the
highlighting selected automatically via the variable
`font-lock-maximum-decoration', you can use
`font-lock-add-keywords'.
To fontify a buffer, without turning on Font Lock mode and
regardless of buffer size, you can use \\[font-lock-fontify-buffer].
To fontify a block (the function or paragraph containing point,
or a number of lines around point), perhaps because modification
on the current line caused syntactic change on other lines, you
can use \\[font-lock-fontify-block].
You can set your own default settings for some mode, by setting a
buffer local value for `font-lock-defaults', via its mode hook.
The above is the default behavior of `font-lock-mode'; you may
specify your own function which is called when `font-lock-mode'
is toggled via `font-lock-function'."
:after-hook (font-lock-initial-fontify)
;; Don't turn on Font Lock mode if we don't have a display (we're running a
;; batch job) or if the buffer is invisible (the name starts with a space).
(when (or noninteractive (eq (aref (buffer-name) 0) ?\s))
(setq font-lock-mode nil))
(funcall font-lock-function font-lock-mode)
;; Arrange to unfontify this buffer if we change major mode later.
(if font-lock-mode
(add-hook 'change-major-mode-hook 'font-lock-change-mode nil t)
(remove-hook 'change-major-mode-hook 'font-lock-change-mode t)))