patch applied (packages/polyparse): Add precedence parsing to Text.Parse.

[Malcolm Wallace]

Wed Mar  4 04:31:06 PST 2009  Malcolm.Wallace at cs.york.ac.uk
  * Add precedence parsing to Text.Parse.
  In order to handle mandatory/optional parens correctly.
  e.g. Previously "Just Just 1" was parsed as "Just (Just 1)", but now it
  is rejected.  Also "((Nothing))" was previously rejected, and now it is
  accepted.

    M ./src/Text/Parse.hs -10 +29

View patch online:
http://darcs.haskell.org/packages/polyparse/_darcs/patches/20090304123106-6871e-2efceba9e89a87a49b7740b9684f81c0f41a4432.gz