From: Brian Candler <b.candler@...>
Date: 2009-12-05T06:45:27+09:00
Subject: Re: ruby language parser in ruby

Ryan Davis wrote:
> I think your best bet at this time is ruby_parser.

Question for you: as far as I can make out, the handling of embeeded 
linebreaks such as

  a = b +
  c

is handled via state kept in the lexer. Can I ask why you did it this 
way? I am thinking it ought to be possible to do this in the grammar, 
e.g.

   expr: expr '+' opt_nl expr
       | expr '-' opt_nl expr

   opt_nl:
       | nl

but if you've found out the hard way that it isn't, it could save me 
following a dead end.

Also: can you summarise how you're handling expressions nested within 
string literals, e.g. "abc #{foo} def" ?

Thanks,

Brian.
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