Stefan O'Rear wrote: > On Wed, Feb 20, 2008 at 07:18:42PM -0500, Steve Lihn wrote: >> If ~> does not have any special meaning and it could be ### or xyz, >> then how does GHC know to print >> a ~> b, but not ~> a b >> a ### b, but not ### a b >> xyz a b, but not a `xyz` b >> >> Simply because xyz is alphanumeric? > > Yes.
To slightly elaborate this: In Haskell, normal (prefix) functions and operators (infix) functions are syntactically distinguished by the characters they may contain: the former must contain only alphanumerics plus ' and _, the latter only operator symbols such as !#$%&*+./<=>[EMAIL PROTECTED]|-~ for details see the Haskell98 Report (http://www.haskell.org/onlinelibrary/lexemes.html). Cheers Ben _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
