From: Mathieu Bouchard <matju@...>
Date: 2002-06-13T00:01:09+09:00
Subject: Re: Ruby for jMax


On Wed, 12 Jun 2002, david casal wrote:

> On Tue, 11 Jun 2002, Mathieu Bouchard wrote:
> > Just a note that I wrote a jMax object using the Ruby language.
> > It works.
> > This functionality will be included in GridFlow 0.6.0.
> Can you say more about this? Does it mean you embedded an Ruby interpreter
> within JMax, so one can write objects for jMax in a similar way to
> Python/Scheme for PD?


this is my emulation of the "for" object:


# this is the demo and test for Ruby->jMax bridge
# FObject is a flow-object as found in jMax
# _0_bang means bang message on inlet 0
# FObject#send_thru sends a message through an outlet
class RubyFor < GridFlow::FObject
  attr_accessor :start, :stop, :step
  def initialize(start,stop,step)
    raise ArgumentError, "@start not integer" unless Integer===start
    raise ArgumentError, "@stop not integer" unless Integer===stop
    raise ArgumentError, "@step not integer" unless Integer===step
    @start,@stop,@step = start,stop,step
  end
  def _0_bang
    x = start
    if step > 0
      (send_thru 0, x; x += step) while x < stop
    elsif step < 0
      (send_thru 0, x; x += step) while x > stop
    end
  end
  def _0_int(x)
    self.start = x
    _0_bang
  end
  alias :_1_int :stop=
  alias :_2_int :step=

  # FObject.install(name, inlets, outlets)
  # no support for metaclasses yet
  install "rubyfor", 3, 1
end



________________________________________________________________
Mathieu Bouchard                   http://hostname.2y.net/~matju