Pkl, a Programming Language for Configuration

Post by astrange » Sat, Feb 03, 2024, 12:12 PM UTC

viraptor wrote: post #60

andrewstuart wrote: post #47

Anything development related from Apple is inherently disinteresting unless it's aimed at Apple, is for Apple and you're building for Apple. Apple has done nothing cross platform or open source or community oriented so if they come out with something that's intended to be more general is has no base, no users, no audience of non-Apple developers to land on. I'm not anti Apple - I love MacOS and Apple is my main machi…

> Apple has done nothing cross platform or open source or community oriented Cups - https://en.wikipedia.org/wiki/CUPS Swift - https://en.wikipedia.org/wiki/Swift_(programming_language) Zeroconf - https://en.wikipedia.org/wiki/Bonjour_(software) I think they're bad, opaque opensource maintainers, but they did release some popular things that have communities on other systems. I do wish they just contributed to nickel…

Post by laserlight » Sat, Feb 03, 2024, 12:14 PM UTC

lijok wrote: post #21

bioballer wrote: post #9

Earlier quoted context omitted.

Python isn't oriented around defining and validating data. For example, something like: "this number is be between 1 and 10" means you have to come up with a novel way to add validation, because it isn't built into the language. Also, Pkl is meant to be usable everywhere. General purpose languages tend to be tied to their own ecosystem--imagine telling a Go developer that they need to install Python, set up virtualen…

> For example, something like: "this number is be between 1 and 10" means you have to come up with a novel way to add validation, because it isn't built into the language. No need for a novel mechanism - there are plenty of available solutions to add validation to python > imagine telling a Go developer that they need to install Python Pkl doesn't come preinstalled on machines - so you'll have to install it as well >…

Post by JonChesterfield » Sat, Feb 03, 2024, 12:17 PM UTC

mimischi wrote: post #20

JonChesterfield wrote: post #10

Types on the fields is interesting. The examples suggest said types are lost when you serialise to json or xml, though it seems like at least some types should be expressible as schemas. Language reference doesn't mention schemas either https://pkl-lang.org/main/current/language-reference/index.h...

You are looking for templates: https://pkl-lang.org/main/current/language-tutorial/02_filli... There’s another repo, the Pkl Pantry, that provides a couple of ready made templates (Schemas) that you can try out: https://github.com/apple/pkl-pantry

Post by worthless-trash » Sat, Feb 03, 2024, 12:17 PM UTC

BiteCode_dev wrote: post #57

HexDecOctBin wrote: post #36

I'm sorry, can someone explain why one would want to translate from one data description language to another (Pkl -> JSON, or whatever)? Why not just write JSON (or whatever) to begin with?

Because there are a thousand ways to describe the same thing in JSON. This: city = { "id": 3, "name": "Foo", "lat": 3.555, "long": 4.11, } Is the same as: city = { "id": "3", "name": "Foo", "coordinates": [3.555, 4.11] } But you want to normalize that. Something like Cuelang will: - Define the schema that will let you know what you should put inside. - Allow you to inflate that schema into a full file, providing only…

Post by styfle » Sat, Feb 03, 2024, 12:19 PM UTC

BiteCode_dev wrote: post #57

HexDecOctBin wrote: post #36

I'm sorry, can someone explain why one would want to translate from one data description language to another (Pkl -> JSON, or whatever)? Why not just write JSON (or whatever) to begin with?

Because there are a thousand ways to describe the same thing in JSON. This: city = { "id": 3, "name": "Foo", "lat": 3.555, "long": 4.11, } Is the same as: city = { "id": "3", "name": "Foo", "coordinates": [3.555, 4.11] } But you want to normalize that. Something like Cuelang will: - Define the schema that will let you know what you should put inside. - Allow you to inflate that schema into a full file, providing only…