Looking up the documentation for some command/function or configuration option/variable is something all Emacs users have to do quite often. Two of the Emacs help commands that I use most often are describe-function (C-h f) and describe-variable (C-h v).…

In my post “Improving Emacs isearch Usability with Transient”, I described a way to use a Transient menu to get at the richer features of isearch. I’m happy to announce that this menu is now...

dash.el has long been a staple in the Emacs community and I give it a lot of credit for driving some upstream API progress. By showing how many people wanted to use dash.el for various reasons (e.g. macros like -if-let and -when-let and numerous functions…

I’m glad to report that yesterday the long-awaited preliminary support for clojure-ts-mode in CIDER has landed! This pull request (or rather the original PR on which it was based) was in the works for a very long time and it feels good to see it finally merged.…

I’ve been pretty busy with Flycheck ever since I became its maintainer recently. Today I wanted to share with you a few of the recent highlights. Flycheck 34 I’ve cut Flycheck 34, which features quite a few new checkers and removes a bunch of legacy checkers.…

A few years ago Nikita Tonsky made popular a certain style of formating Clojure code, that became known as “fixed” or “tonsky” indentation in the community. clojure-mode has long had some support for this via clojure-indent-style: (setq clojure-indent-style…

By now probably most Rubists have heard of Prism (formerly know as YARP), the modern and (very) fast Ruby parser that’s aiming to replace all the existing Ruby parsers out there. Including RuboCop’s “own” parser (a.k.a whitequark/parser), which aimed to replace…

Today I’ve released nREPL 1.1.1 with a couple of small bug-fixes and one more notable, if mostly invisible change. Historically nREPL’s completions op used internally a modified version of clojure-complete, that I eventually released as a library named incomplete.…

I am doing a live stream today where I will be maintaining some of my packages for Emacs.

Anyhoo… the reason I checked was because I was cleaning up my closet, which I’m told you have to do five times a century, whether it needs it or not. I got about er 11? of these refuse …

Most Rubyists probably know that nil in Ruby is an instance of the singleton class NilClass. Because nil is a object like any other, we can actually invoke methods on it, and it turns out that NilClass provides a few - mostly conversion methods to other Ruby…

String#split is a pretty-well known and commonly used method. Still, its behaviour in some cases might surprise you: irb(main):001:0> 'foo.bar'.split('.') => ["foo", "bar"] irb(main):002:0> '...'.split('.') => [] irb(main):003:0> 'foo...'.split('.') => ["foo"]…

A while ago while working on Rust-based Emacs, I was loading a new elisp file and hit a stack overflow. Digging deeper I found the issue in trying to print a cyclic list (where the tail of the list points back to previous element). I knew this was a possibility…