luau
cloc
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luau | cloc | |
---|---|---|
64 | 28 | |
3,595 | 18,452 | |
2.7% | - | |
9.0 | 8.7 | |
13 days ago | about 1 month ago | |
C++ | Perl | |
MIT License | GNU General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
luau
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Building a baseline JIT for Lua automatically
As far as I can tell, they aren't.
http://lua-users.org/wiki/SandBoxes
There is a lot of information there, but it doesn't handle resource exhaustion, execution time limits or give any guarantees. It does indicate that it's possible, and has a decent example of the most restrictive setup, which is a good start. But I would for example compare it with Luau's SECURITY.md.
From https://github.com/luau-lang/luau/blob/master/SECURITY.md:
> Luau provides a safe sandbox that scripts can not escape from, short of vulnerabilities in custom C functions exposed by the host. This includes the virtual machine and builtin libraries. Notably this currently does not include the work-in-progress native code generation facilities.
> Any source code can not result in memory safety errors or crashes during its compilation or execution. Violations of memory safety are considered vulnerabilities.
> Note that Luau does not provide termination guarantees - some code may exhaust CPU or RAM resources on the system during compilation or execution.
So, even luau will have trouble with untrusted code, but it specifies exactly what happens and so on. I think that's fair enough.
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Pluto, a Modern Lua Dialect
Alternatively, Luau is a well-supported Lua variant with type checking and performance improvements, aimed more towards being a sandboxed embedded scripting environment.
https://luau-lang.org/
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Buzz: A lightweight statically typed scripting language
If you need Lua but also type-safety, how about Luau [1] then?
[1] https://luau-lang.org/
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Lua Criticism Is Unwarranted
I had the pleasure of working with Lua 5.1 back in the late noughties. For me it's replaced Tcl whenever I want something I can configure above a C library. At the time I used it I found it quite nice but I'll also not forget the hours I wasted tracking down nil table corruptions which could have easily been caught by a type checker.
I had some hope that Luau https://luau-lang.org or Teal https://github.com/teal-language/tl would make things better but with the following example
function foo(x: number): string
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Ask HN: Looking for platforms, other than Roblox, that have adopted Luau
Looking at other replies here, I can see I wasn't the only one who didn't realize there is Lua and Luau. Luau is an extension of Lua: https://luau-lang.org/
> Luau is syntactically backwards-compatible with Lua 5.1 (code that is valid Lua 5.1 is also valid Luau); however, we have extended the language with a set of syntactical features that make the language more familiar and ergonomic.
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Embeddable Common Lisp 23.9.9
Lua is usually the embedded language of choice. If you are focused on security, you could check out the Roblox fork, Luau (https://github.com/Roblox/luau) where the creators took extra care to lock down the language on what scripts could do.
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Creating a simple sandboxed language
Luau - Lua variant by Roblox
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The Warframe Lexicon for Updates
On a side note, I've heard that they recently switched from Lua to Roblox's own fork of Lua, Luau.
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Lua: The Little Language That Could
https://www.youtube.com/results?search_query=luau+roblox&sp=...
Luau
https://github.com/Roblox/luau
Roblox wrote a superset of Roblox Lua which is way faster
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Scripting Resources MegaThread
https://luau-lang.org/ - some documentation, and examples https://create.roblox.com/docs - documentation, tutorials, and examples https://www.youtube.com/user/AlvinBLOX - tutorials https://www.youtube.com/@TheDevKing/videos - tutorials https://www.lua.org/manual/5.1/ - not specific to Roblox, but Lua reference manual https://www.codecademy.com/learn/learn-lua - Lua on Codecademy
cloc
- cloc counts blank lines, comment lines, and physical lines of source code in many programming languages
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Underrated tools & practices
Cloc - https://github.com/AlDanial/cloc
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Show HN: Cloc as a Service
and get the results on the cli.
Let me know what you think. :)
0: https://github.com/AlDanial/cloc
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erdtree: A modern, multi-threaded, and ️🌈aesthetic️🌈 alternative to tree and du - v1.7.0 release ️
Awesome stuff, thank you! I‘d love some flags/options for cloc integration if it can be detected, maybe a summary of the top N languages for directories (67% Rust, 13% Html, 9% Bash) or something. Just a suggestion/idea. Gonna install it anyway, it‘s shiny!
- How can I see what % of my project is written in Kotlin vs Java?
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I created a Blazor server-side application that has processed its first $1k in sales volume
The solution I am using is currently comprised of 145 projects, 141k+ lines of C#, and 37k+ lines of Razor, courtesy of cloc:
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Can anyone give me an idea of the size ration between a high level language and assembly code?
Just out of curiosity, I downloaded the latest version of GNU coreutils and compared the line count between a few source files and the resulting disassembled object files (using cloc to exclude blank lines and comments). It looks like the ratio is very approximately 2 assembly instructions per line of C code. Obviously, that will depend a lot on what the code is doing and the coding style.
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Take More Screenshots
When I started making a game [0] last year, first thing I did was write a little Unity script that takes a screenshot of the opening scene, counts current lines of code using CLOC [1] (for fun, not as a true measure of anything), and occasionally renders it all out to an image file.
With that I'm able to create some pretty fun time lapses of progress. I've been doing this at an arbitrary milestone, whenever my Luau [2] LOC surpasses C++ by another factor. This post reminded me I'm overdue for another now that Luau > 3x C++ LOC.
I find it rewarding to look back at my progress. I'll share in case it's interesting for you too [3].
[0] https://store.steampowered.com/app/2168330/Helmscape/
[1] https://github.com/AlDanial/cloc
[2] https://luau-lang.org
[3] https://twitter.com/kineticpoet/status/1619508466212831232
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Is there any way to get an average of number of lines added/removed (basically how large a change is) in user commits
My manager just asked me about this a few days ago (sigh) cloc is good for this - you can pass it a hash or two hashes and it will give you counts accordingly. https://github.com/AlDanial/cloc
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350 Stars: A Categorization and Mega-Guide
Finally, since I'm limited on the character-length of this post, I'll post an individual comment for each year with a table of data. The "All Rank" column will rank the problem by difficulty (measured by leaderboard close time) across all years, with 1 being longest. The "Yr Rank" column will be similar, but ranked only within that year. The "P1 LOC" and "P2 LOC" columns show the numbers of lines of code in my solutions for each part as measured by cloc (each part is stand-alone so there will be some duplication, especially for Intcode). Other columns should be self-explanatory.
What are some alternatives?
lua-languages - Languages that compile to Lua
tokei - Count your code, quickly.
LuaJIT - Mirror of the LuaJIT git repository
scc - Sloc, Cloc and Code: scc is a very fast accurate code counter with complexity calculations and COCOMO estimates written in pure Go
moonsharp - An interpreter for the Lua language, written entirely in C# for the .NET, Mono, Xamarin and Unity3D platforms, including handy remote debugger facilities.
sbcl - Mirror of Steel Bank Common Lisp (SBCL)'s official repository
lua-language-server - A language server that offers Lua language support - programmed in Lua
gui - Bitcoin Core GUI staging repository
tl - The compiler for Teal, a typed dialect of Lua
kakoune-python-bridge - Send selections to python while keeping history of previous commands
moonscript - :crescent_moon: A language that compiles to Lua
termux-create-package - Python script to create Termux packages easily.