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On Thu, May 28, 2009 at 6:52 PM, James Britt <james.britt / gmail.com> wrote:

> What was the reason for remove indentation sensitivity?


I was using a Python-style lexer in conjunction with a Ruby-like (almost)
pure expression grammar, and running into the issues I've outlined in this
thread regarding indent blocks in expressions.

I detailed many of the problems in this blog post:

http://unlimitednovelty.com/2009/03/indentation-sensitivity-post-mortem.html

I'm surprised by how well the solutions others are coming up for this are
working.  The script J Haas found just throws regexes at the problem (and
removes any degree of formal decidability), however the RubyLexer approach
sounds interesting.

That said, I have no regrets with ditching indentation sensitivity.  If
anything it seemed to alienate people who would otherwise be interested, and
now Reia has the advantage of looking nearly identical to Ruby.  Porting
Ruby programs to Reia programs is now substantially easier.

--
Tony Arcieri
medioh.com

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