Add Luau language

[robloxiandemo]

Description

Resolving this issue, this PR aims to finally add Luau support to the platform.

Checklist:

• I am adding a new language.
  • The extension of the new language is used in hundreds of repositories on GitHub.com.
    • Search results for each extension:
      • .luau 3.9k files
  • I have included a real-world usage sample for all extensions added in this PR:
    • Sample source(s):
      • EnumList.luau
      • Option.luau
      • Ser.luau
      • Symbol.luau
      • Tree.luau
    • Sample license(s):
      • EnumList.luau - (https://github.com/Sleitnick/RbxUtil/blob/main/LICENSE.md) MIT
      • Option.luau - (https://github.com/Sleitnick/RbxUtil/blob/main/LICENSE.md) MIT
      • Ser.luau - (https://github.com/Sleitnick/RbxUtil/blob/main/LICENSE.md) MIT
      • Symbol.luau - (https://github.com/Sleitnick/RbxUtil/blob/main/LICENSE.md) MIT
      • Tree.luau - (https://github.com/Sleitnick/RbxUtil/blob/main/LICENSE.md) MIT
  • I have included a syntax highlighting grammar:
    • https://github.com/JohnnyMorganz/Luau.tmLanguage – MIT
  • I have added a color:
    • Hex value: #14a5ff
    • Rationale: Logo color from https://luau-lang.org/ at the time of writing.
  • I have updated the heuristics to distinguish my language from others using the same extension.

[robloxiandemo]

Hey! I'd like to ask if a CI could be ran for this, as I wasn't able to check it myself under the fork.

[moo1210]

I strongly support including support for Luau, which for context is an open-source Lua 5.1 fork, with many backward-compatible features (and therefore syntax) changes built onto it over the years.

With that being said, I do think it's worth noting that Vector3 (or any other Roblox types/globals) probably shouldn't be included in this. Standalone Luau has no built-in Vector3 type or globals such as game, this seems largely out of scope.

[robloxiandemo]

I'll be going through to fix up my commits with your suggested changes, thank you!

[robloxiandemo]

I strongly support including support for Luau, which for context is an open-source Lua 5.1 fork, with many backward-compatible features (and therefore syntax) changes built onto it over the years.

With that being said, I do think it's worth noting that Vector3 (or any other Roblox types/globals) probably shouldn't be included in this. Standalone Luau has no built-in Vector3 type or globals such as game, this seems largely out of scope.

I will say that it seems the larger scope of usage of Luau is under the Roblox platform.

[phoriah]

I strongly support including support for Luau, which for context is an open-source Lua 5.1 fork, with many backward-compatible features (and therefore syntax) changes built onto it over the years.
With that being said, I do think it's worth noting that Vector3 (or any other Roblox types/globals) probably shouldn't be included in this. Standalone Luau has no built-in Vector3 type or globals such as game, this seems largely out of scope.

I will say that it seems the larger scope of usage of Luau is under the Roblox platform.

I agree with this, better have them just in case.

[phoriah]

    * Hex value: `#14a5ff`
    * Rationale: Logo color from https://luau-lang.org/ at the time of writing.

Any chance you could update the color to #479df9 ?
Not sure where you got yours from

[phoriah]

@robloxiandemo

[robloxiandemo]

    * Hex value: `#14a5ff`
    * Rationale: Logo color from https://luau-lang.org/ at the time of writing.

Any chance you could update the color to #479df9 ? Not sure where you got yours from

Sure, I'll submit a commit for this now.

[robloxiandemo]

    * Hex value: `#14a5ff`
    * Rationale: Logo color from https://luau-lang.org/ at the time of writing.

Any chance you could update the color to #479df9 ? Not sure where you got yours from

Resolved here, thank you for your contribution!

[lewisakura]

I do hate to add to the color debate, but neither of those colors is correct for the logo. The logo uses #00A2FF:

https://github.com/luau-lang/site/blob/c4e26ca38e3d075a365f548951f05a9be0eda345/logo.svg?short_path=5525394#L2

[robloxiandemo]

I do hate to add to the color debate, but neither of those colors is correct for the logo. The logo uses #00A2FF:

https://github.com/luau-lang/site/blob/c4e26ca38e3d075a365f548951f05a9be0eda345/logo.svg?short_path=5525394#L2

Haha, thank you for pointing that out, I'll write up a commit later today to resolve that. 👍

[robloxiandemo]

I do hate to add to the color debate, but neither of those colors is correct for the logo. The logo uses #00A2FF:

https://github.com/luau-lang/site/blob/c4e26ca38e3d075a365f548951f05a9be0eda345/logo.svg?short_path=5525394#L2

Resolved here, thank you for your contribution!

[robloxiandemo]

Seems we'll have to make some changes with the grammar. I'll try to submit a few PRs later this week to resolve it.

[phoriah]

Your new samples are all now too big. If they're suppressed in the diff, they're bigger than we need. Also, we don't need all the other grammar updates.

Is there anything else that still needs changing? 🤔

[lildude]

Your new samples are all now too big. If they're suppressed in the diff, they're bigger than we need. Also, we don't need all the other grammar updates.

Is there anything else that still needs changing? 🤔

Yes. All the submodule updates need to be reverted. We only need the files for this language updated.

[AsynchronousAI]

Your new samples are all now too big. If they're suppressed in the diff, they're bigger than we need. Also, we don't need all the other grammar updates.

Is there anything else that still needs changing? 🤔

Yes. All the submodule updates need to be reverted. We only need the files for this language updated.

Ight bet, Im on a codespace rn fixing.

[CompeyDev]

@robloxiandemo If you're looking for more samples, I have a project, rusty-luau, which uses a lot of luau-specific features (such as types), consider that!

[deviaze]

Most of those examples still seem to showcase relatively advanced type features that I don't think represent the bulk of the language,

Luau is an extremely useful scripting language, not just on the Roblox platform, but also for general purpose programming with the Lune runtime. It's an amazing replacement for bash/powershell scripts, python, and other high level dynamically typed scripting languages--without needing any of the baggage to install or run. Imho, Luau excels in its simplicity, ease of use, and performance.

If possible, I'd like to contribute some simple, general-purpose script examples that demonstrate this side of the language but still differentiate it from Lua 5.1.

[robloxiandemo]

@robloxiandemo If you're looking for more samples, I have a project, rusty-luau, which uses a lot of luau-specific features (such as types), consider that!

I'll look over them and update each, though I've done it so many times already, 😅

[robloxiandemo]

If possible, I'd like to contribute some simple, general-purpose script examples that demonstrate this side of the language but still differentiate it from Lua 5.1.

Feel free to, just make sure to mention me somewhere along with the example and any related real-world usage, been finding it a tad bit difficult to find outside of Roblox examples without there just being comment spam (or having far too many lines).

[phoriah]

@lildude Sorry for pinging again, but any updates? Or, are there still changes that need to be made..?

[lildude]

LGTM. Thanks.

Note: this PR will not be merged until close to when the next release is made. See here for more details.

[bradsharp]

The color should be #00A2FF. Disregard, it looks like the correct one was used in the configuration file.