From: "Iñaki Baz Castillo" <ibc@...>
Date: 2011-08-22T08:58:41+09:00
Subject: Re: Possble bug in Ruby parser (Fixnum#times within "case" statement)

2011/8/22 Michael Edgar <adgar@carboni.ca>:
> "while" cannot take braces, only do-end. Your entire `case` expression is the clause of the while loop, so the "do" is begin confused for the "do" that optionally comes between the "while"'s condition and its body. Since a brace never comes between a while condition and a while body, there's no ambiguity.
>
> Ruby's grammar is expressive, but when you do things like put many-line case statements in a while condition, you're going to get weird corner cases in the grammar.

Thanks a lot. I understand it now. My code was just wrong from the
beginning (but worked in some specific case just by chance).

Thanks.

-- 
Iñaki Baz Castillo
<ibc@aliax.net>