From: Lothar Scholz <mailinglists@...>
Date: 2004-07-22T15:32:28+09:00
Subject: Re: nesting #{} problem

Hello Hal,

HF> Mehr, Assaph (Assaph) wrote:
>>>|Seems like an IRB bug:
>> 
>> 
>>>I'd call it IRB "limitation".  IRB do not parse nested interpolation
>> 
>> well.
>> 
>> Sorry for the hasty judgement :)
>> Doesn't IRB use the same parser as the regular Ruby for the user
>> statements?

HF> I don't think so. Ruby is based on yacc, and I think irb is
HF> pure Ruby (no C?).

Right. The problem is that yacc can't generate a state based
incremental parser. And you need something like this when you want to
parse ruby input line by line to see if the input now contains a
complete statement for eval.


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 Lothar Scholz                        http://www.ruby-ide.com
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