From: Eric Hodel <drbrain@...7.net>
Date: 2008-04-06T11:26:17+09:00
Subject: Re: rubynode for 1.9?

On Apr 5, 2008, at 17:08 PM, Phlip wrote:
> Rubies:
>
> I attempted to port rubynode to 1.9, and the effort got non-trivial.
>
> (For the curious, I got as far as these lines:
>
> 	ruby_nerrs = 0;
> 	ruby_in_eval++;
> 	node = rb_compile_string(StringValuePtr(file_name), src,  
> NUM2INT(line));
> 	ruby_in_eval--;
> 	rb_thread_critical = critical;
> 	if (ruby_nerrs > 0) {...
>
> The ripper.c (?) stuff no longer supports ruby_nerrs, and my feeb  
> attempt to dig nerr out of the Parser object [instantiated inside  
> rb_compilestring] failed.)
>
> So, before we roll up our sleeves, the general question here how  
> Ruby and ripper can grow to make this kind of reflection easier. Any  
> ideas?


If you want the sexp of an String, that's built-in.

require 'ripper'
Ripper.sexp "3 + 4 == 7"
# => [:program, [[:binary, [:binary, [:@int, "3", [1, 0]], :+, [:@int,  
"4", [1, 4]]], :==, [:@int, "7", [1, 9]]]]]