On 02/07/2012 04:40 PM, Brendan Eich wrote:
I like Erik's way, but it makes a strange loop from lexical to syntactic
grammar. It all works, I believe.
The loop is here:
QuasiHole ::
Identifier
{ Spacing* Expression Spacing* }
Expression is a syntactic grammar non-terminal, yet here we are in a lexical
production.
Waldemar, is this sound?
QuasiHole is a syntactic production, not a lexical one. See Mark's grammar in
his 02/02/2012 11:03 AM message.
I believe that it works, except for the treatment of comments and whitespace
along the boundary of a QuasiHole. I recently gave some examples of the
mischief those can create unless we can figure out what to do about them.
Waldemar
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