[GHC] #14812: Dot-Notation for Flipped Function Application

[GHC]

#14812: Dot-Notation for Flipped Function Application
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        Reporter:  tepan             |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by tepan):

 Replying to [comment:8 svenpanne]:
 I cannot argue with historical consensus and what is and isn't a "very,
 very good reason"/"warts in language design". So, if it's going to be
 "let's not do this", then "meh" it is.

 Concerning breaking old code, a language pragma `{-# LANGUAGE
 FlippedFunctionApplicationDot #-}` might provide the necessary backward-
 compatibility.

 But, so far, I haven't seen Haskell code with the dot-operator without
 white-spaces. It seems to be consensus (or at least advisable) to use the
 dot-operator with whitespaces, and to leave `.` without whitespaces only
 for module access.

 Thanks for the links, though. Maybe they will help me understand why, on a
 "lexical level" `Foo.bar` would cease to be unambiguously parsed as "`bar`
 of module `Foo`" once `foo.bar` would be parsed as "`bar` applied to
 `foo`".

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14812#comment:9>
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