[GHC] #8068: ghc incorrectly accepts the Kannada TTHA character at the beginning of an identifier.

[GHC]

#8068: ghc incorrectly accepts the Kannada TTHA character at the beginning of an
identifier.
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       Reporter:  malcolmw          |             Owner:
           Type:  bug               |            Status:  new
       Priority:  normal            |         Milestone:
      Component:  Compiler          |           Version:  7.6.3
       Keywords:                    |  Operating System:  Unknown/Multiple
   Architecture:  Unknown/Multiple  |   Type of failure:  None/Unknown
     Difficulty:  Unknown           |         Test Case:
     Blocked By:                    |          Blocking:
Related Tickets:                    |
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 The code at
 http://hub.darcs.net/lelf/acme-
 lookofdisapproval/browse/Acme/LookOfDisapproval.lhs
 is accepted by ghc, but technically, the leading letter of the funny
 identifier (Kannada TTHA) is neither lowercase, uppercase, nor titlecase.
 It can be accepted in any position of an identifier except the first,
 where Haskell requires the character to be either upper/title-case (conid)
 or lower (varid).

 isLetter x && not (isUpper x) does not imply isLower(x).

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8068>
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