Re: Highlight tabulated and trailing whitespace

[Óscar Fuentes]

steve-humphreys@gmx.com writes:

> Have tried the following two lines to no effect
>
> (require 'whitespace)
> (whitespace-mode)

In a buffer, just:

M-x whitespace-mode

For enabling it automatically when you open certain type of files, use a
major mode hook. For instance:

(add-hook 'prog-mode-hook #'whitespace-mode)

Will activate whitespace-mode in all programming language modes.