From: Simon Strandgaard <neoneye@...>
Date: 2005-03-17T17:27:17+09:00
Subject: Re: tree transformation insight required

On Wed, 9 Mar 2005 19:00:46 +0900, Luke Graham <spoooq@gmail.com> wrote:
[snip] 
> Can anyone suggest a good way to get the c++-producing code out
> of recurse and into some sort of template language, or into functions
> that get passed into simplified recurse? I figured those functions
> would need to return functions (usually themselves) to simulate
> some state changes, ala...
[snip]

I have had good results with visitor design pattern and interpreter
design pattern.

For instance have a look at the bottom most class in this file
http://rubyforge.org/cgi-bin/viewcvs.cgi/projects/regexp_engine/source/scanner_nodes.rb?rev=1.22&cvsroot=aeditor&content-type=text/vnd.viewcvs-markup


--
Simon Strandgaard