Ruby DSL experiences?

Question

I don't know anything in Ruby, but i'm pretty interested in DSLs. And DSL seems to be a buzz word for you community.

Do you actually implement DSLs in Ruby for your own purposes ? If so, how complex and how dedicated are they ?

i've seen this question here, but i'm more interested in your everyday experience.

thanks.

Answer 1

My own experience writing DSLs in Ruby is quite limited but i've done the following:

(1) An L-System DSL:

Dragon = TexPlay::LSystem.new {
    rule "F" => "F"
    rule "X" => "X+YF+"
    rule "Y" => "-FX-Y"
    angle 90

    atom "FX"
}

(2) An image manipulation tool:

image.paint {
    circle 20, 20, 15, :color => :red
    rect 10, 20, 100, 100, :color => :green
    pixel 40, 40, :color => :white
}