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September 2001

5 participants
2 discussions

Quoted filenames in error msgs
by Bjarte M. Oestvold 17 Sep '01

17 Sep '01

Is there a way to force Hugs (Feb 2001 or CVS) to quote filenames in errors messages, e.g., I want ERROR "/nr/user/bjarte/tmp/foo/A.hs":1 - ... instead of ERROR /nr/user/bjarte/tmp/foo/A.hs:1 - ... The reason I want this is to make Emacs & Haskell mode (version 1.41) happy when parsing error messages -- it expects messages to have quoted filenames. Of course, one could attempt to handle this on the ELisp side, but it gets messy allowing for spaces, quotes or colons in filenames, ... (and regexps drives me nuts after having used parsing combinators :) In the archives of hugs-{bugs|users} there are discussions of a related problem in *invoking* editors from Hugs, but unless I've misunderstood something this does not help here. Cheers, -- Bjarte

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How to XOR two integers?
by shameem＠cse.iitb.ac.in 07 Sep '01

07 Sep '01

Hi, When I have the following program in a file test.hs: ------------------------------------ import Int z = xor (intToInt32 0xf32e) (intToInt32 0xac43) ------------------------------------ The system gives the following error message: ------------------------------------ Reading file "test.hs": Dependency analysis ERROR test.hs:5 - Undefined variable "xor" ------------------------------------ However when I directly input the expression Int> (xor (intToInt32 0xf32e) (intToInt32 0xac43)) I get the answer 24429 Since Int is imported in test.hs, and Int.hs exports Int32, shouldn't xor be visible in test.hs? Please CC to me while replying Regards Shameem.

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