Dumbparens

Dumbparens is a parenthesis-matching solution for Emacs that actually Just Works™ (finally). It replaces and improves on previous packages such as Electric Pair mode, Paredit, and Smartparens. The package is called Dumbparens as a response to Smartparens, which I feel tries to be much too smart for its own good, resulting in a host of bugs, performance issues, and inexplicable behavior. Dumbparens has the design philosophy of: try to do as little as possible, and always do something reasonable.

Documentation will come when the basic features have been implemented. Usage is as follows. First install with straight.el:

(straight-use-package
  '(dumbparens :host github :repo "radian-software/dumbparens"))

Then type M-x dumbparens-mode or M-x dumbparens-global-mode.

To run the tests, you have two options:

1. From Emacs, evaluate the contents of dumbparens-tests.el and then type M-x dumbparens-run-all-tests.
2. From the command line, run make test.

Since Dumbparens has a goal of always doing something reasonable, any unreasonable behavior will result in a slap on the wrist and a new regression test.

Note that there are also various linters, which you can run along with the unit tests by means of make lint. GitHub Actions will automatically run this against all supported Emacs versions. You can easily test for yourself by using make docker VERSION=25.1 or analogous to use the appropriate version.