rustic VS dash.el

We will mainly look at 3 packages: s.el, f.el and dash.el. Two of these packages (first and last) are maintained by Magnar Sveen, who are also known for Emacs Rocks and What The .emacs.d (which are still great resources for learning and finding inspiration for your Emacs configuration!). We will also look at ht.el. These packages are used a lot in many of the Emacs packages you use in a day to day basis, like lsp-mode and rustic just to name a few. As most of these already have tons of examples in their READMEs, my main goal of this article is to inspire you to check them out. Hopefully you will know of one new package after reading this article :)

I was facing a problem because i wasnt able to run lsp server and i found this issue https://github.com/brotzeit/rustic/issues/217

In case somebody else is interested in adding missing crates automatically https://github.com/brotzeit/rustic/pull/429

;; https://github.com/brotzeit/rustic/issues/253 has been resolved this should

Emacs with rustic-mode

https://github.com/brotzeit/rustic uses it out of the box, overall it's a more complete extension than rust-mode.

A lot of Clojure-style goodness can be provided by using the excellent dash package:

We will mainly look at 3 packages: s.el, f.el and dash.el. Two of these packages (first and last) are maintained by Magnar Sveen, who are also known for Emacs Rocks and What The .emacs.d (which are still great resources for learning and finding inspiration for your Emacs configuration!). We will also look at ht.el. These packages are used a lot in many of the Emacs packages you use in a day to day basis, like lsp-mode and rustic just to name a few. As most of these already have tons of examples in their READMEs, my main goal of this article is to inspire you to check them out. Hopefully you will know of one new package after reading this article :)

That error means that the -compose function is undefined and it should come from https://github.com/magnars/dash.el

Fail #1: Wrong type argument: symbolp, "dash" Try symbolifying the key string dash... Fetcher: nil Source: https://github.com/magnars/dash.el.git

elpa dash recipe is (dash :url https://github.com/magnars/dash.el.git :doc dash.texi :auto-sync t) Fail #1: Wrong type argument: symbolp, "dash" Try symbolifying the key string dash... Fail #2: Failed to checkout ‘dash’: ‘Symbol’s function definition is void: quelpa-build--checkout-nil’

It is quite a bit more readable comparing (for example) to what you'd do in Python, basically a matter of few extra quotes. Here's an example https://github.com/magnars/dash.el/blob/a17b6b5409825891423b...

Another benefit apart from macros is that you can replace whole subexpressions to modify the function code: https://github.com/raxod502/el-patch#el-patch Although arguably you can achieve the same with source code and other languages: https://github.com/adamchainz/patchy#patchy

Although (as a keen Emacs user & someone who often hacks into existing librairies) user I'm not really convinced either that homoiconicity plays that huge of a role in Emacs malleability in particular -- to me it's more about hooks/advice system and being able to dynamically override things to tweak into the way I want them to behave -- and I don't see a good reason why this couldn't be possible in other languages.