I’ve been running a few releases behind on GNU Emacs, because the last time I upgraded, they removed the count-lines-region function, for no apparent reason.

Unfortunately, I recently upgraded with Homebrew, and the latest dumbfuckery to ruin my day is making non-regexp searches match on one or more Unicode whitespace characters when you type a literal space character. This includes newlines.

As a result, out of the box it is no longer possible to find either an errant space, or multiple spaces where there should only be one. You need to Google and discover how to shut it off in your .emacs file:

(setq isearch-lax-whitespace nil)
(setq search-whitespace-regexp nil)

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