From: gabriele renzi <rff_rff@...>
Date: 2004-12-28T05:21:50+09:00
Subject: Re: Bare-bones Ruby

Leiradella, Andre V Matos Da Cunha ha scritto:


> I've been looking for a script language that could be used in Lua's place
> for FullMoon and I found Ruby. I downloaded it (3.4MB!) and I saw that it
> comes with a great set of modules. So my first questions to the list are:
 >
> 1) Is it possible to build Ruby without those modules? How?

most of the modules are pure ruby extensions or C extensions that can be 
loaded at runtime, not basicly needed. But ruby has more things builtin 
that Lua, I think (i.e. sockets are C extensions, SOAP is a ruby one, 
Array and Hash are builtins)

> 2) How do I embed Ruby in a host program?

There is the "programming ruby" documentation, but you may find usefule 
this pages:
http://metaeditor.sourceforge.net/embed/
http://www.rubygarden.org/ruby?EmbedRuby

> 3) What are the functions that must be called to make Ruby load a program,
> to create an instance of a class defined in Ruby, to call methods with this
> instance etc.? Is this API documented somewhere?

README.ext in the source distribution, I think.

> 4) Does Ruby support multiple inheritance or something similar to Java's
> interfaces?

modules can be mixed in to fit for 99% of good uses of multiple 
inheritance, and callbacks like Module#included or Class#inherited can 
be used to simulate interfaces a-la java (if you look on the ruby 
application archive, raa.ruby-lang.org, you may find some pure ruby 
interface system implementations)