Hi
I'm currently writing a little example mode for Yi and I'd like to
verify that the parser works as it should. However, I can't figure
out how to trace the resulting AST without implementing dummy stroking
functionality. Below is the code I'm currently using, but I have to
replace "XYZ" with something which actually "performs" the parsing and
returns the AST, so that I can "show" it.
parser = let res = program <* eof in trace (show $ XYZ $ res) res
program = PIdent <$> pId <*> program
<|> POper <$> pOp
<|> PErr <$> recoverWith (symbol (const True))
--
Deniz Dogan
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