I talked to someone about the extensibility of emacs, but the person I was speaking to assumed that any IDE is just as extensible by using Plug Ins.
Without turning the conversation into a university style lecture, what is one or two simple actions I can do in emacs to show someone what separates it from other IDES.
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You might be interested in this talk at next weekend’s Emacs Conf:
Pick any that you like from https://emacsrocks.com. My favourite is https://emacsrocks.com/e13.html well worth watching until the end where it all comes together.
I mean, as a practical matter they are correct - most things people care about IDEs doing are just built in in other IDEs or doable via plugins. emacs is extremely niche and most people are correct to use something else.
It is an important skill to not care what other people use and not care what they think about what you use.
It is not so much about other tools or languages not being extensible; most quality ones are extensible. It is about how easy is to extend it since the text editor, debugging tools, and some other useful stuff like shell integration (process control, I/O), networking for example, are built into the extension language.
It is very easy to write a small tool that automates something, like a say project creation for Emacs compared to for example Eclipse, Netbeans, or VisualStudio. Since Emacs GUI is in essence a glorified console, it is relatively easy to integrate CLI, text-based tools with Emacs.
I don’t. I dont care what other people use. Folks noticing I have language server support in a terminal editor is funny though.
Emacs is a programmable interface to a computer. While it is frequently used to program itself to program other things, it is a foundational bootstrap tool.
IDE’s seek to present a set of features that fills that domain of work. You hit a ceiling in that world. With Emacs, you continue molding it to things you get value out of years and decades later, after that IDE went away when its most popular language or framework went into decline.
In the upcoming landscape of AI’s with more well-defined type interfaces and symbolic representations, tools like Emacs will be at the forefront of composing these tools into the long tail of cottage industries of what will amount to a revolution in IP, programming, and human-computer interfaces.
Good explanation, but the keyword is to “show” not tell
Have them show their IDE’s scripting environment and how they can quickly prototype an automation for something annoying without even going the distance to write a full plugin and then bind that automation to a key.
Then open org or something and show how you can write a version of Lispy for org outlines based on some predicates like
org-at-heading-p.
One of the junior coders was using vscode but with vi keybindings. He heard one of the seniors talk about their love of vi and he thought he had to learn it as well. I told him that, learning vi is handy because it is often one of the only editors you find on a freshly installed GNU/Linux system, but in the end VSCode is very capable without learning silly shortcuts. I know that, if I had to pick an IDE now I would definitely choose VSCode. I have spent so much time configuring my EMacs that it would be a waste of time to start it again.
The lisp environment of Emacs makes it unique. Also it’s support for dynamic modules gives you a TON of extra power for certain cases where lisp is not appropriate; integrating 3rd party software like web browsers in a performant way.
If your goal is to simply use the editor then the lisp environment doesn’t give you an advantage. But if you want to treat the editor as a tool you mold like clay to your tiniest yak shaving need then it gives you a LOT.
For comparison, let’s look at Netbeans. A stereotypical traditional IDE. . If you try to write a plugin Netbeans you are first met with boilerplate. Menus, a bunch of strange plugin related code generated. You have to learn the plugin boilerplate system to get started. Now you wrote a little code and are ready to test/observe it’s behavior! how do you do that? you build/run and spawn YET-ANOTHER-NETBEANS which may take a few minutes. The write/observe feedback loop is painfully slow. (FYI I love and use Netbeans. I’m dunking on it but it has some advantages even over modern IDEs like Jetbrains).
Now let’s look at Emacs. We start by writing a function. Then immediately observing/testing their behavior. There is no boiler plate. We are not cordoned off to a special “plugins” area. We just straight to the good stuff, the functionality. Instead of waiting 5 minutes to build/observe what we wrote, it happens IMMEDIATELY as we write it using lisp’s EVAL-loop. It affects our running Emacs instance, no need to spawn another.
I lied a little bit. Emacs packages DO have boiler plate that you should conform to before publishing. But it’s not required, and not where you start. For your personal stuff, it may simply be a collection of functions. Then bind appropriate functions to keys.
An anecdote. Just yesterday I was writing some Go (lang) code and running the linter. Most of the time I like to run the linter at the project root folder. But at that moment I only care about the package I’m working on in the current folder or maybe 1 level up. I whipped up a little helper function where I can select 1 of 3 options: current folder, project-root folder, Custom folder. The project root folder is detected by heuristics using Emacs project library. If I choose Custom, then i input a folder via completing read. This little fn scratches MY itch. A tiny little inconvenience solved in 5 minutes. If i tried to solve that in Netbeans… it would take 5 minutes just to build it and spawn another Netbeans instance.
Show him one of the email clients on GNU Emacs. Vterm’s directory tracking is also unique.
How to show not tell people about the wonders of Emacs
rmail?
For me, it is not the ability to write plugins : most editors have those to some extent.
For me it’s more about the ease of writing your own customizations and not be limited to those provided by your plugins.
A few examples
- don’t like some built in or plugin behavior ? Copy paste the original source code, tweak it to your likint and use add-advice to use your new version
- just yesterday i had some tests which generated a log in a temporary folder, 5 folders deep. I wrote a new command and bound it to a shortcut that looked for the new log file and opened it after running my tests
- i wrote a simple log browser : use a few commands to preformat the file with query/replace, and boom with emacs’ outline mode i can fold sections /subsections. This command is 10 lines long.
The strength of emacs is not its plugins, it’s your ease of making it your own
VSCode plug-ins is definitely playing in a rich man’s garden: https://code.visualstudio.com/api/extension-capabilities/overview
You’re allowed to do what they say you can do. There’s a list and it’s not infinite.
Part of the reason is VScode is very complex. Whereas the core of emacs is a lot simpler. It’s significantly easier to hook into the core of emacs and also safer too.
The emacs source code has about 250,00 lines of C. And about 1 million lines of elisp (including all bundled packages). You can change all of that elisp at run time.
A great example of this is this video https://youtu.be/w3krYEeqnyk?si=JKvVsgMO89DbCkhF
Besides being easy to extend, there are also small general features that are very useful and I haven’t found anywhere else, such as narrowing. And these small features can be combined and composed. For example, suppose you just learned you can use dired to rename a file, now whatever you have already learned to edit text can be used to mass rename files, which could be using macros, using multiple cursors, using a regex query and replace, etc.
Once you’ve done things for a few years, it’s frustrating to be at the whims of ide developers. Remember the last must have ide? Atom. Gone. The needs of a multinational conglomerate comes before yours comrade. All animals are equal and Microsoft is the most equal.
Even IntelliJ - which is a great ide - is at the whim of how much jetbrains can make their business model work.
I like emacs because I’m off someone else’s upgrade schedule and forced obsolescence. My usage isn’t being measure and put into a data warehouse where some pm can figure out how to monetize. No vendor lock in. No data format lock in. This is the killer feature. I don’t have to give up my data to someone else’s cloud, I don’t have to agree to some restrictive license. I can just be, and compute without someone else needing to interject their wallet between me and my computer!
Remember the last must-have ide? Atom. Gone.
You’ve confused active development with source code availability. Atom is just as open to improvements as emacs is. The difference is the number of programmers reading atom’s support channel is determined by how much they’re getting paid by microsoft whereas those reading emacs’s is determined by how long they can go without employment. I won’t say which camp contains the better programmers. I will say I never got past my first-round interview at Microsoft.
It’s the always-on REPL that’s the kicker.
(defun invert-case () (backward-delete-char-untabify 1) (insert (funcall (if (< last-command-event ?a) #'downcase #'upcase) last-command-event))) (add-hook 'post-self-insert-hook #'invert-case)Then
C-u C-M-xoninvert-caseto convey the larger point that emacs is always running within a gdb-like harness. Your buddy will immediately bristle at the prohibitive investment necessary to achieve this pointless and trivial hack, at which point he’ll have truly grokked emacs.Brilliant!
any IDE is just as extensible by using Plug Ins
Lisp. Up, down, around, inside, across, between, under, at, through, into.
You might get pretty far just by explaining that all emacs “plugins” use the same language as the editor, and then explaining the
C-hfamily of keybinds that let you see documentation for every variable and function.Then open one of those help pages for a package to show it and highlight the part where it tells you what file the function comes from, even for 3rd party packages. Then highlight how you can extend emacs in the same way, just writing some elisp on a file instead of needing to create an entire plugin.
A lot of emacs really needs to be discovered, but I’d imagine most developers could appreciate good documentation, the ability to see exactly what code is doing, and the option to override or extend that functionality very easily.
Not the best person to answer - glanced the replies, and seeing people who seem very articulate so definitely read their points of view.
My personal thought is being a “literate programmer” - I should be able to understand what my tools are doing and how it affects things. If I spend to much time with plugins - I sort of miss exactly what they do. With emacs - I have the code and I have a community.