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<body><main class="wrapper">
<nav class="navigation">TODO</nav>
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<h1 class="title">Lua4Win</h1>
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<p>Lua4Win is a distribution the Lua programming language for Windows.</p>
<a class="button" href="https://cicd.lua4.win/archive/lua4win-dist-lua/latest/lua4win.msi">Download</a>
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<h3 class="title">Rational</h3>
<p>Unlike alternative distributions, Lua4Win comes with the Luarocks package manager and is a "batteries-not-included" distribution of Lua. Binary packages are built in the cloud and can be downloaded as-needed. The Lua4Win installer contains a copy of <a href="https://luajit.org">LuaJIT</a>, <a href="https://luarocks.org">Luarocks</a>, <a href="https://www.busybox.net">Busybox</a>, and <a href="https://7zip.org">7zip</a>; which allows it to come in at a slim 2MB. Updates and bugfixes can be done piecemeal instead of requireing new copies of the whole distribution every time a bug gets fixed.</p>
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<h3 class="title">Usage</h3>
<p>After installing, you can launch <code>cmd.exe</code> and run <code>$ lua</code> to get started.</p>
<pre><code class="language-none">$ lua
LuaJIT 2.0.ROLLING -- Copyright (C) 2005-2023 Mike Pall. https://luajit.org/
JIT: ON CMOV SSE2 SSE3 SSE4.1 AMD fold cse dce fwd dse narrow loop abc sink fuse
> print("Hello, world!")
Hello, world!
></code></pre>
<p>You can use <code>CTRL+C</code> to escape the read-evaluate-print-loop. You can also write Lua programs with your favorite text editor and run them with <code>$ lua filename.lua</code>
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note.lua
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<pre><code class="language-lua">-- Create a note file with today's date in %APPDATA%
local args = {...} -- extra arguments passed to the program
-- Generate a filename
local notes_folder = os.getenv("APPDATA")
local today = os.date("%Y-%m-%d")
local note_name = table.concat(args,"-"):gsub("[%W]","-")
local note_filename = string.format("%s\note-%s-%s.txt",notes_folder,today,note_name)
-- Create the file
local fd = assert(io.open(note_filename,"w"))
assert(fd:close())
-- Open it in notepad
os.execute("notepad.exe " .. note_filename)</code></pre>
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<pre><code class="language-bash">$ lua note.lua my first note</code></pre>
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<p>Run <code>lua --help</code> for more options for the command line tool, and the <a href="https://www.lua.org/manual/5.1/manual.html">Lua Manual</a> for extensive documentation of the Lua programming language. Also note <a href="https://luajit.org/extensions.html">LuaJIT's extensions</a></p>
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<section class="container">
<h3 class="title">Installing Superpowers</h3>
<p>You can use modules that implement more than the standard lua libraries by running the <code>$ luarocks install >module name< </code> command to download and install modules.</p>
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color.lua
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<pre><code class="language-lua">local eansi = require("eansi")
eansi.enable = true
print(eansi.toansi("green") .. "> implying you need modules" .. eansi(""))</code></pre>
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<pre><code class="language-bash">$ luarocks install eansi
$ lua color.lua</code></pre>
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<p> Run <code>luarocks --help</code> for more options on the command line tool, and the <a href="https://github.com/luarocks/luarocks/wiki/Using-LuaRocks">Luarocks wiki</a> for more extensive documentation.</p>
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<section class="container">
<h3 class="title">Sister languages</h3>
<p>Lua4Win makes it easy to download other programming languages that are distributed through the <code>luarocks</code> package manager. Simply <code>luarocks install</code> them like you would any other package.</p>
<h4 class="title">Moonscript</h4>
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example.moon
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<pre><code class="language-bash">$ luarocks install moonscript</code></pre>
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<pre><code class="language-moonscript">class World
greet: => print("Hello, world!")
with World!
\greet!</code></pre>
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<pre><code class="language-bash">$ moonscript example.moon
Hello, world!</code></pre>
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<br/>
<h4 class="title">Teal</h4>
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keys.tl
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<pre><code class="language-bash">$ luarocks install tl</code></pre>
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<pre><code class="language-teal">local function keys<K,V>(xs: {K:V}):{K}
local ks = {}
for k, v in pairs(xs) do
table.insert(ks, k)
end
return ks
end
local s: {number:string} = keys({ a = 1, b = 2 })
print(table.concat(s))
</code></pre>
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<pre><code class="language-bash">$ tl keys.tl
ab</code></pre>
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<section class="container">
<h3 class="title">Advanced Usage</h3>
<p>Lua4Win allows you to install system-wide packages with the <pre><code>--tree system</code></pre> flag, these packages will be located at <pre><code>[INSTALLDIR]/luarocks</code></pre>. You may need to be running as an administratior to install to this location.</p>
<p>Lua4Win's luarocks config lives at <pre><code>[INSTALLDIR]/config/config-5.1.lua</code></pre></p>
<p>All of Lua4Win's binary packages are built using mingw64, if you intend to build your own modules, they must be built with mingw64 if you want them to operate with Lua4Win-distributed Lua.</p>
<p>Some of Lua4Win's packages needed patching or modification, source code is generally mirrored at <a href="https://git.lua4.win">git.lua4.win</a>, and packaging code is kept seperate, usually in a repo <pre><code>*-packaging</code></pre></p>
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