How do I add to a list with a "not" in it?
reddit / emacs

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thiscarhasfourtires · 2022-03-06 16:13

For example, I wanna add `fountain-mode` to the list `company-global-
modes`, which is defined as`(not erc-mode circe-mode message-mode)`,
in such a way that it becomes `(not erc-mode circe-mode message-mode
fountain-mode)`, and not `((fountain-mode) not erc-mode circe-mode
message-mode)`. How can I do that?

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agrostis · 2022-03-06 16:19

You can use the function [``add-to-list``](https://www.gnu.org/softwar
e/emacs/manual/html_node/elisp/List-Variables.html#index-
add_002dto_002dlist) with the ``append`` flag, like this:

    (add-to-list 'company-global-modes 'fountain-mode t)

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thiscarhasfourtires · 2022-03-06 16:44

That's wonderful, thanks!