That looks a lot like HCL / Terraform / OpenTofu.
If this is where the toml train ends I will be happy with it. If they do a yaml, I will be very upset.
I don’t feel like it will stray very far from what’s dubbed “TOML 0.1” in the meme. Yes, it has inline tables and as of TOML 1.1, they’re allowed to span multiple lines, so it’s technically not anymore illegal to do what’s in the meme. But all things considered, this is still a miniscule change compared to TOML 1.0.
I like this. I also like yaml, I’ve had very few issues with it and it’s nicer to work with than json.
Json’s lack of support for trailing commas and comments makes it very annoying for everyday use.
Significant white-space is bullshit and i will die on this hill.
Yeah I just want JSON with optionally quoted keys, and comments.
Preach!
orange = { you = "glad", I = { didn\'t = { say = "banana" } } }I was such a menace with this joke as a child. Haha
I wish I could hear it again for the first time, top 10 knock knock joke
Time to read this if you haven’t already
https://ruudvanasseldonk.com/2023/01/11/the-yaml-document-from-hell
The json spec is not versioned. There were two changes to it in 2005 (the removal of comments
See, this is why we can’t have nice things.
I can kind of understand it after having to work with an XML file where users encoded data into comments for no good reason. But yeah, it does make JSON awkward for lots of potential use-cases.
As if I didn’t hate the format enough before
Almost all of those issues are solved by explicitly quoting your strings, the author even acknowledges that. Yeah it’s annoying that yaml lets you do otherwise, but the title is a bit dramatic.
JSON is like the carcinization of programming
What’s it called when people try to reinvent Lisp for the hundredth time?
carthinazation
The plural for said zealots’d be Cartholth? (singular: Carthole)
Well…
It’s name-value pairs, with groups denoted by balanced brackets. It’s close to as good as you can get for one kind of data serialization.
What is impressive is how many problems people manage to fit in something so small.
Chuck in comments and I’m on board.
They were chucked out because, according to the guy who defined it, people started using them for parsing directives, which hurt interoperability because now you needed to be sure that the parser would both read the comments and interpret them correctly. Suddenly, those comments might make otherwise identical files parse differently. If the whole point is that it’s reliable and machine-readable, keeping it to the minimal set of features and not extending it any way whatsoever is a good way to ensure compatibility.
What you can do is define some property for comments. It’s not standardised, but you could do stuff like
{ "//": "This is a common marker for comments", "#": "I've never seen that as a property name, so it might be safe?", "_comment": "Property names with underscore for technical fields seem common enough as well, and it's semantically explicit about its purpose" }If we’re adding comments to json, can we add canonical support for trailing commas?
Found the python guy!
Oh, a trailing comma? That’s a tuple.

Yeah when the call_func((a,)) is the way to go it is a newbie pain for sure. Remember banging my head on that one.
I’ve spent hours on that, and debugging missing commas between string literals. Even on separate lines you’re not safe from implicit concatenation.
Just make JSON5 the new official version and I would be ok
That’s not JSON. Note the use of equal signs for the property names. That’s something else.
Carcinisation is the phenomenon of non crabs to evolve crab like characteristics. It is not the process of non crabs becoming true crabs.
In this case the language is trending toward JSON syntax, but it doesn’t have to actually be JSON for carcinisation to be an applicable analogy.
So, you can say, it’s something else? 🤔
Equals schmequals.
It could be a⇨and it would be the same as JSON because it is still a single symbol used as a separator.a distinction without a difference
Now, if it took multiple separators, each giving some specific different meaning, then it would be a something else.
It could be a ⇨ and it would be the same as JSON because it is still a single symbol used as a separator.
Nah, that’s a Ruby Hash…
schmooby schmash
Excuse me, it’s a Ruby Hash Rocket.
None of what you said makes any sense.
This is the equivalent of an anti-vaxxer denouncing vaccines because they feel that their herbs are close enough to real medicine. 🤦♂️
Don’t do that. Syntax absolutely matters.
#define EQUAL_TO =Look! I made a new programming language!
- Vaccines are not medicine. They are a more refined form of older (much dirtier and dangerous) practices of sharing sick people’s blood to create group immunity. I’m pretty thankful of not having to do the latter.
- No, herbs are far from factory produced, chemically engineered medicine.
- Most usages of herbs are defined in a way that it acts much closer to cooking. Also most of the herbs used in everyday cooking have medicinal and detoxifying properties, which is 1 of the ways food recipes have developed the way they do.
- Herbal medicine is much milder than the extremely refined medicine produced using modern methods
- Hence, they are much slower to act and you need to be using them much earlier than what you can manage with modern ones
- Hence, there is much less overdose related problems
- Most herbal medicine tend to have multiple effects. This is in contrast with modern medicine, where extra effects tend to be mostly undesirable and detrimental
- Hence, herbal medicine is a better choice for regular, low intensity problems, like the flu and what-not, rather than popping Paracetamol every time your temp goes 1℉ over the baseline.
- Herbal medicine works along with nutrition. This means, it is much harder to develop a tolerance to it in a way that would make it harder for it to work in the future.
Calm down, kids. These issues were resolved a longtime ago by ASN.1
If yaml didn’t have anchors and 8 different white space formats, it’d be a great replacement for this kind of thing.
But yaml is a mess, and you’d think you could parse it easily, but you can’t.
As someone who works with YAML regularly:
Fuck YAML.
As someone who runs Home Assistant:
Fuck YAML.
YAML is redeemed by one thing only:
All JSON is valid YAML.
No way. You’re telling me I can just write json instead?
I have a fundamental disdain for formats with restrictive white space definitions (I’m looking too at you Python)
I’ve never had this issue with Python, but makefile has given me plenty of whitespace issues.
Should have added if it cares about tabs vs spaces.
I want to like yaml, I really do, but why are there so many different ways of specifying the same thing?
import yaml:)I’m a fan of NestedText. It’s no panacea but I’d argue it’s the most well-considered and useful file format for structured data in plain text.
There just needs to be one universal standard that handles everyone’s use cases
I wish more people embraced HOCON
TOML’s design is based on the idea that INI was a good format. This was always going to cause problems, as INI was never good, and never a format. In reality, it was hundreds of different formats people decided to use the same file extension for, all with their own incompatible quirks and rarely any ability to identify which variant you were using and therefore which quirks would need to be worked around.
The changes in the third panel were inevitable, as people have data with nested structure that they’re going to want to represent, and without significant whitespace, TOML was always going to need some kind of character to delimit nesting.
Well, Wikipedia does say:
The [TOML] project standardizes the implementation of the ubiquitous INI file format (which it has largely supplanted[citation needed]), removing ambiguity from its interpretation.
Nix is the next step in that evolution. It’s basically just JSON that can generate itself !
Sounds like Nix is a pathway to many abilities I consider to be unnatural.
Yeah, it really is. A plaintext document that generates an entire OS?
Is it possible to learn this power?
It’s basically just JSON that can generate itself !
You have inspired me.
I will make JSON with meta-programming
I will call it DyJSON, i.e. “Dynamic JSON” but pronounced “Die, Jason!”
It is JSON with meta-programming and the ability to call C functions from libraries
Example:
# This is a line comment # Put your function definitions up here (concat str_a str_b: "concat" "my-lib.so") # Import a function through a C ABI (make-person first_name last_name email -> { # Define our own generative func "name": (concat (concat $first_name " ") $last_name), "email": $email }) # And then the JSON part which uses them [ (make-person "Jenny" "Craig" "jenn.craig.420@hotmail.com"), (make-person "Parson" "Brown" null) ]As you can see, it is also a LISP to some degree
Is there a need for this? A purpose? No. But some things simply should exist
Thank you for helping bring this language into existence
I think you’ve just invented Jsonnet, but with C integration.
Here is the grammar:
<json> ::= <value> | <fn-def> <json> <value> ::= <object> | <array> | <string> | <number> | <bool> | <fn-def> | <fn-app> | "null" <object> ::= "{" [ <member> { "," <member> } ] "}" <member> ::= <string> ":" <value> <string> ::= "\"" { <char> } "\"" <char> ::= (ASCII other than "\"", "\\", 0-31, 127-159) | (Unicode other than ASCII) | ( "\\" ( "\"" | "\\" | "/" | "b" | "f" | "n" | "r" | "t" | "u" <hex> <hex> <hex> <hex> ) <hex> ::= /A-Fa-f0-9/ <array> ::= "[" [ <value> { "," <value> } ] "]" <number> ::= <integer> [ <fraction> ] [ <exponent> ] <integer> ::= "0" | /[1-9]+/ | "-" <integer> <fractional> ::= "." /[0-9]+/ <exponent> ::= ("E" | "e") [ "-" | "+" ] /[0-9]+/ <bool> ::= "true" | "false" <fn-def> ::= "(" <ident> { <ident> } ("->" <value> | ":" <string> <string>) ")" <ident> ::= <startc> { <identc> } <startc> ::= /A-Za-z_/ or non-ASCII Unicode <identc> ::= <startc> | /[0-9-]/ <fn-app> ::= "(" <ident> { <value> } ")" <var> ::= "$" <ident>
I had the same thought. At panel 3 it’s just oh that’s nix with commas.
Lazily-evaluated, too!
No, sir. That’s an inline table, sir. That is clearly totally different, sir!
Is there any real reason why most progranming languages look more like the 3rd panel and not like the 1st panel? There’s gotta be a reason for all the nesting and indents that has nothing to do with readability since that shit makes it harder to read.
Because the 3rd panel looks better when you have dozens of physical properties to track. It also makes retrieval easier because you can get all the physical properties at once, instead of having to read every line.
For an example that small it doesn’t matter, but for something larger it could become a performance benefit.
since that shit makes it harder to read
It makes it harder to read the individual lines, but makes it easier to read them as a group, so you won’t have to read as many lines on your day to day.
I would guess that it has to do with making it easier to parse. The indents won’t matter very much, but the parser sees "physical = " and knows that a property named physical is being defined. What is the value of that property? Well, there’s a “{”, so the value is an object. And the value of that object is everything up until the matching “}”. If you have a structure more like panel 1, then it’s harder for the parser to know when the value of orange.physical is complete. There might be a [orange.physical.texture] section somewhere, for example.
For programming languages that make use of
{}, the reason is (almost always) scope.Take for instance this:
for i in 0..10 do_thing(); do_other_thing();compared to this:
for i in 0..10 { do_thing(); } do_other_thing();The intent of the first one is unclear. In the second one it’s clear you should loop
do_thing()and then rundo_other_thing()afterwards. The indentation is only for readability in the above though. Logically there would be no difference in writingfor i in 0..10 { do_thing(); } do_other_thing();Languages that use indentation and line breaks for scope look more similar to this:
for i in 0..10: do_thing() do_other_thing()A good way to feel that for yourself is by programming a little program in Assembly and C.
Make sure the program needs to loop a bit and perhaps also require some
if/elselogic.
A simple one would be to read a 1000 integers and return the sum.In C, you would do something like:
int MAX = 1000; int accumulator = 0; int counter = 0; while (counter < MAX) { accumulator = accumulator + value_at_next_memory_location_by_counter; counter = counter + 1; }In assembly, you would go (writing pseudo, because I have forgotten most assembly stuff):
set reg1 = 1000 // For max value set accumulator = 0 // just choose a register and consider it an accumulator. older CPUs have a fixed accumulator and you can only operate on that. I am not considering that here set reg2 = 0 // For counter tag LOOP: set flag if true reg2 < reg1 jump if false -> END move from memory location @counter(reg2) to reg3 add accumulator reg3 add reg2 1 goto -> LOOP tag END:
I also realised that you could just try using C with
gotoinstead of any loops and would realise similar things, but I’m not in the mood to rewrite my comment.
In conclusion, it is easier to understand something like BASIC, if you haven’t been introduced to other languages, but these
{}structures end up making it easier to catch control flows at a glance.
That’s also the argument I use when telling people to have opening and closing brackets of the same level at the same indent, while people prefer stuff like:if { ... } else { ... }
I think edn is almost the only more advanced and ergonomic option to json. Edn is like the evolved json, but its interesting that its roots are way older than JSON.
The fact that you can very efficiently define whole applications and software just with edn (and the lisp syntax in general) is what makes really amazing.
I think this blog post sheds more light on how we only need lisp for defining data and applications.
That’s literally just lua tables



















