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How do you list the active minor modes in emacs?
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A minor mode is an optional editing mode that alters the behavior of Emacs in some well-defined way. Unlike major modes, any number of minor modes can be in effect at any time. Some minor modes are buffer-local, and can be turned on (enabled) in certain buffers and off (disabled) in others.
A mode is a set of definitions that customize Emacs behavior in useful ways. There are two varieties of modes: minor modes, which provide features that users can turn on and off while editing; and major modes, which are used for editing or interacting with a particular kind of text.
It includes Text mode, HTML mode, SGML mode, TeX mode and Outline mode. The second group contains modes for specific programming languages. These include Lisp mode (which has several variants), C mode, Fortran mode, and others.
The standard default value is fundamental-mode . If the default value is nil , then whenever Emacs creates a new buffer via a command such as C-x b ( switch-to-buffer ), the new buffer is put in the major mode of the previously current buffer.
C-h m or M-x describe-mode shows all the active minor modes (and major mode) and a brief description of each.
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