Re: Lua-to-browser communication
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- Subject: Re: Lua-to-browser communication
- From: steve donovan <steve.j.donovan@...>
- Date: 2011年4月30日 11:09:02 +0200
On Sat, Apr 30, 2011 at 10:27 AM, Dirk Laurie <dpl@sun.ac.za> wrote:
> Or I could finally start reading the Kepler project documentation.
> If someone can speak glowingly of how useful that turned out to be
> after the initial learning curve, I may well do just that.
Something more specialized than the full Kepler stack is Orbiter [1].
It's designed specifically to write little Lua servers that run on the
same machine as the browser, or within a _trusted_ intranet. It looks
and feels very much like Orbit, except that it generates (X)HTML using
a LOM representation.
Or you can use it just as a way to intercept HTTP requests and
directly output the response as text:
-- hello.lua
local orbiter = require 'orbiter'
local hello = orbiter.new()
function hello:index(web)
return ([[
<html><body>
<h2>Hello, Lua!</h2>
<img src='/images/logo.gif'/>
Lua memory used is %5.0f kB
</body></html>
]]):format(collectgarbage 'count')
end
hello:dispatch_get(hello.index,'/','/index.html')
hello:dispatch_static '/resources/images/.+'
hello:run(...)
It also has useful HTML-generating functions that can relieve some of the pain:
> = html.table {{'A','B'},{'C','D'}}
<table>
<tr>
<td>A</td>
<td>B</td>
</tr>
<tr>
<td>C</td>
<td>D</td>
</tr>
</table>
It only depends on LuaSocket, so it's relatively easy to get working.
steve d.
[1] https://github.com/stevedonovan/Orbiter