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<html>
<head>
<title>
Emscripten: Lua
</title>
<link id="bespin_base" href="skywriter/"/>
<script src="skywriter/BespinEmbedded.js"></script>
<style type="text/css">
.bespin {
width: 80%;
height: 30%;
}
</style>
<script src="lua.js"></script>
<script>
// print function which the Lua engine will call
var lines = [], printed = false;
function print(text) {
lines.push(text);
printed = true;
}
function execute(text) {
lines = [];
printed = false;
raw_argv[8] = Pointer_make(intArrayFromString(text), 0, ALLOC_STATIC); // leak!
argv = Pointer_make(raw_argv, null);
__Z7runargsP9lua_StatePPci(GLOBAL_L, argv, argc)
if (!printed) {
print('<small><i>(no output)</i></small>');
}
var element = document.getElementById('output');
if (!element) return; // perhaps during startup
element.innerHTML = lines.join('<br>') + '<hr>' + element.innerHTML;
}
var editor;
function doRun() {
args = ['-e', ''];
run(args);
setTimeout(function() {
if (!bespin.useBespin) setTimeout(arguments.callee, 10);
bespin.useBespin(document.getElementById('the_input'), { "stealFocus":true, "syntax": "lua" }).then(function(env) {
editor = env.editor;
});
}, 10);
}
</script>
</head>
<body onload="doRun(); document.getElementById('the_input').focus()">
<p>
This is the <a href="http://www.lua.org/">Lua</a> interpreter, compiled from C to JavaScript using <a href="http://emscripten.org">Emscripten</a>,
running in your browser (without any plugins).
</p>
<p>
<ul>
<li>Most stuff should work, please report bugs if you find them!</li>
<li>Note that this is an unoptimized build (see <a href="http://code.google.com/p/emscripten/issues/detail?id=8">issue 8</a>)</li>
</ul>
</p>
<hr>
<!-- Call Lua's execution function -->
<form onsubmit="execute(editor.value); return false">
<b>Enter some Lua</b>:
<input type="submit" value="execute">
<div id="the_input">
print("Hello world! This is: " .. _VERSION);
for i=1,5 do
print("A number: " .. i)
end
</div>
</form>
<hr>
<div id="output" style="font-family: Courier New,Courier,monospace;"></div>
</body>
</html>
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