• A functional language, with some features inspired by Elm. This means it does not have mutability, side-effects (while at times possible, they are mostly discouraged), loops, or statements. Everything is an expression.
  
• Dynamically typed. I really wanted to make a statically typed language, but I honestly wasn't sure how, and I couldn't find many resources on the subject—at least ones understandable by a high-schooler with little patience. Maybe in the future?
  
• Written in Gleam, which is an amazing language; you should check it out!
  
• A work in progress.
  

; Hello world
print('Hello, world!')

; Factorial
let fact =
  n ->
    if (n == 0)
      1
    else
      n * fact(n - 1)
in

4 |> fact |> print

; Countdown
let countdown =
  n ->
    if (n == 0)
      print('Liftoff!')
    else (
      print(n)
      countdown(n - 1 )
    )
in

countdown(10)

; Records
let
  repository =
    { type: 'github'
    , user: 'MystPi'
    , repo: 'bella'
    }

  package =
    { name: 'Bella'
    , type: 'Programming language'
    , repository
    , tags:
      { fun: false
      , simple: true
      }
    }

  bella =
    package + { tags: package.tags + { fun: true } }
in

bella.tags.fun |> print

; Try & throw
let divide =
  a -> b ->
    if (b == 0)
      throw 'Cannot divide by 0'
    else
      a / b
in (
  print('Before try')

  try
    print(divide(1, 0))
  else
    msg -> print(msg)

  print('After try')
)

• This was pretty much my first time writing Gleam, so the code might be kinda messy and unorganized. Apparently Louis told me large files aren't a bad thing in the Gleam world?
  
• There are almost no comments in the code because I'm me and I don't ever remember to comment things.
  
• If you want a recursion exercise (and a mind bender), then the parser is for you! You can look through it here.
  
• Syntax highlighting for Gleam on GitHub is kind of broken right now, so you might want to clone the repo locally if you're going to spend time looking through the code. Actually, it got fixed recently!
  
• Bella is named after a dog that recently died. She looks a similar to the AI-generated logo on GitHub.
  

uwv wrote:

woah! this is super neat! cool little language

you should totally add a llvm backend to this (for real no joke)

lolecksdeehaha wrote:

Woah! I love this neat function syntax, which kinda splits up the arguments. It might've been a limitation so you had to add that (or just because you didn't want to make it work), but it actually looks kinda sick!

let
  add =
    a -> b ->
      a + b

Also, is the newline and indent after let required, or just in the general style? And how do I run it?
Also, I really like this language in general, it looks fun to use.

ajskateboarder wrote:

You should make a style guide sometime if you're devoted to this project

ajskateboarder wrote:

Neat syntax

You should make a style guide sometime if you're devoted to this project

MagicCrayon9342 wrote:

Add your language to GitHub: https://github.com/github-linguist/linguist/blob/master/CONTRIBUTING.md

GitHub wrote:

We try only to add new extensions once they have some usage on GitHub. In most cases we prefer that each new file extension be in use in at least 200 unique :user/:repo repositories before supporting them in Linguist

NFlex23 wrote:

MagicCrayon9342 wrote:

Add your language to GitHub: https://github.com/github-linguist/linguist/blob/master/CONTRIBUTING.md

GitHub wrote:

We try only to add new extensions once they have some usage on GitHub. In most cases we prefer that each new file extension be in use in at least 200 unique :user/:repo repositories before supporting them in Linguist

MagicCrayon9342 wrote:

NFlex23 wrote:

MagicCrayon9342 wrote:

Add your language to GitHub: https://github.com/github-linguist/linguist/blob/master/CONTRIBUTING.md

GitHub wrote:

We try only to add new extensions once they have some usage on GitHub. In most cases we prefer that each new file extension be in use in at least 200 unique :user/:repo repositories before supporting them in Linguist

Announce it in more places and make it popular.

NFlex23 wrote:

MagicCrayon9342 wrote:

NFlex23 wrote:

MagicCrayon9342 wrote:

Add your language to GitHub: https://github.com/github-linguist/linguist/blob/master/CONTRIBUTING.md

GitHub wrote:

We try only to add new extensions once they have some usage on GitHub. In most cases we prefer that each new file extension be in use in at least 200 unique :user/:repo repositories before supporting them in Linguist

Announce it in more places and make it popular.

As weird as it sounds, that's not really what I want. Bella is not intended to be widely used, it is more of a hobby project and an exploration in functional programming.

DifferentDance8 wrote:

ajskateboarder wrote:

You should make a style guide sometime if you're devoted to this project

Except, if this doesn't even have documentation… and style guides are basically documentations…

MagicCrayon9342 wrote:

That's kind of like what Linus Torvalds said when he made Linux. Look where Linux is now.

UserFriend- wrote:

Had to dive into code inside bella/build/dev/javascript/bella/*, debug and fix it (Gleam compiled code was broken lol..)
(it was giving errors before, like “I don't know what is ….” or “function is not found …”)