Hi Dons, You need to specify haskell 98 mode, with -98.

yhc -98 Main Success

Underscores and upper/lower case are broken in Haskell, if anyone can tell us what it _should_ do then we're happy to implement it! Ideally a short and comprehensible spec of what we should allow, and what the result should be, to accept the maximum number of programs! You could also add {-# OPTIONS_YHC -98 #-} to the top of the file to get this test working. Thanks Neil On 2/27/07, codesite-noreply@google.com wrote:

Issue 130: Parser error on _1-style identifiers http://code.google.com/p/yhc/issues/detail?id=130

New issue report by dons00: YHC's parser seems to die on the following (I think) valid Haskell identifiers:

main = let _1 = 1 in print _1

Dies with:

serenity$ yhc x.hs Error: /home/dons/src/nobench/spectral/integer/x.hs(1:12-1:11) Found {-ERROR 1-} but expected one of _in_ ; {-end-of-definition-} prefix _infix_ _infixr_ _infixl_ <string> <char> <rational> <integer> ~

However hugs, ghc, hbc and nhc98 are happy with it:

serenity$ runhugs +98 x.hs 1

Issue attributes: Status: New Owner: ---- Labels: Type-Defect Priority-Medium

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