From: Phil Tomson <rubyfan@...>
Date: 2008-02-04T04:07:39+09:00
Subject: Re: Treetop: Can the parser be put inside a module?

On 2/3/08, Chiyuan Zhang <pluskid@gmail.com> wrote:
> Hi!
>
> I'm wondering if Treetop can provide (or is it already have?) a
> mechanize like this:
>
> module MyModule
>   Treetop.load("my")
> end
>
> so that I'll get a MyModule::MyParser instead of a top-level MyParser.
> Or something like:
>
> Treetop.load_into("my", MyModule)
>
> which might be implemented like the original `load':
>
> #  def self.load(path)
>   def self.load_into(path, module)
>     adjusted_path = path =~ /\.(treetop|tt)\Z/ ? path : path + '.treetop'
>     compiler = Treetop::Compiler::GrammarCompiler.new
> #    Object.class_eval(compiler.ruby_source(adjusted_path))
>     module.class_eval(compiler.ruby_source(adjusted_path))
>   end
>
> Any idea? Thanks!
>
>

You can use tt to generate the parsing module:

tt my.treetop

Then to get it into your MyModule:

require 'my'
module MyModule
  include My
end