[antlr-interest] Whitespace question

Gavin Lambert antlr at mirality.co.nz
Fri Oct 9 17:22:45 PDT 2009


At 10:34 10/10/2009, Reid Rivenburgh wrote:
 >In my particular case, I think it's okay to let a few illegal
 >constructs through and catch them further down the line.  I was
 >just hoping that I would be able to easily write a tighter
 >grammar.

As Jim Idle is fond of pointing out, it's often better to make the 
grammar fairly tolerant and deal with errors as late as possible 
(usually in the tree parser) -- that way you have more contextual 
information and can often produce a better error message.



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