[Haskell-cafe] Quasiquoter invocation no longer requires/allows a leading dollar sign.

[Michael Snoyman]

Sorry, maybe I missed the memo on this one, but I just noticed this
change to quasi-quotation syntax on the GHC 7 upgrade page[1]. So if
GHC 6.12 *requires* the dollar sign, and GHC 7 *rejects* the dollar
sign, is there any way to write code that will run on both? Is there a
reason we can't keep the dollar sign as supported syntax for a release
or two to make for a cleaner migration?

Michael

[1] http://haskell.org/haskellwiki/Upgrading_packages/Updating_to_GHC_7#Quasiquotation:_.5B.24foo.7C....7C.5D_-.3E_.5Bfoo.7C....7C.5D