September 2009 - Hugs-Bugs

WinHugs installer broken
by Bartosz Milewski 20 Jun '11

20 Jun '11

I get the following error during the installation of WinHugs: Could not extract the file: docs\hugs98.chm .

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[Hugs] #95: local fixity declarations cause static errors
by Hugs 20 Sep '09

20 Sep '09

#95: local fixity declarations cause static errors ---------------------------------+------------------------------------------ Reporter: guest | Owner: nobody Type: defect | Status: new Priority: major | Milestone: Component: hugs | Version: 200609 Keywords: fixity declarations | ---------------------------------+------------------------------------------ Declarations such as {{{ newExp (*) a c n = let infixl 7 * in a ^ n * c }}} work well with GHC but Hugs complains that "*" is not defined. The Report is not explicit about this, at least I couldn't find such case discussed there. But as a fixity change for an operator introduced as a formal parameter is perfectly reasonable and safe, I think that this should be legal. Härmel Nestra (harmel.nestra(a)ut.ee) -- Ticket URL: <http://hackage.haskell.org/trac/hugs/ticket/95> Hugs <http://www.haskell.org/hugs/> Hugs 98, an interpreter for Haskell

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Problems building hugs under Windows
by Sebastian Beschke 10 Sep '09

10 Sep '09

Hi, I'm attempting to build the Hugs September 2006 release from source on Windows XP. I installed MinGW as well as the MSYS base system, and the build process went quite far, to stop with the below error. Are there any other tools I need in order to build hugs? Or what else is causing this error? Thanks in advance, Sebastian Beschke --- Preprocessing Network/Hackage/Client Preprocessing Network/Hackage/Interface Preprocessing Network/Hackage/Version runhugs: Error occurred ERROR "libraries/bootlib\Data\HashTable.hs" - Can't find imported module "Contro l.Monad" runhugs: Error occurred ERROR "libraries/bootlib\Data\HashTable.hs" - Can't find imported module "Contro l.Monad" runhugs: Error occurred ERROR "libraries/bootlib\Data\HashTable.hs" - Can't find imported module "Contro l.Monad" runhugs: Error occurred ERROR "libraries/bootlib\Data\HashTable.hs" - Can't find imported module "Contro l.Monad" runhugs: Error occurred ERROR "libraries/bootlib\Data\HashTable.hs" - Can't find imported module "Contro l.Monad" runhugs: Error occurred ERROR "libraries/bootlib\Data\HashTable.hs" - Can't find imported module "Contro l.Monad" runhugs: Error occurred ERROR "libraries/bootlib\Data\HashTable.hs" - Can't find imported module "Contro l.Monad" runhugs: Error occurred ERROR "libraries/bootlib\Data\HashTable.hs" - Can't find imported module "Contro l.Monad" echo timestamp for bootlib >bootlib/.stamp cd ../cpphs; HUGSFLAGS=-P../libraries/bootlib HUGSDIR=../hugsdir ../src/runhugs -98 ../packages/Cabal/examples/hapax.hs configure --verbose --hugs --prefix='/us r/local' --scratchdir='../hugsdir/packages/cpphs' --with-compiler=../src/ffihugs runhugs: Error occurred ERROR "../libraries/bootlib\Data\HashTable.hs" - Can't find imported module "Con trol.Monad" make[1]: *** [../hugsdir/programs/cpphs/Main.hs] Error 1 make[1]: Leaving directory `/d/Eigene Dateien/uni/Diplomarbeit/source/hugs98-plu s-Sep2006/libraries' make: *** [all] Error 2

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[Hugs] #94: pattern match failure on Chars with Unicode codepoint >0x4ff
by Hugs 04 Sep '09

04 Sep '09

#94: pattern match failure on Chars with Unicode codepoint >0x4ff --------------------+------------------------------------------------------- Reporter: guest | Owner: nobody Type: defect | Status: new Priority: major | Milestone: Component: hugs | Version: current Keywords: | --------------------+------------------------------------------------------- hi, i tested the following code in Hugs: {{{ patternMatchingWorks1 = case '\x4ff' of '\x4ff' -> True patternMatchingWorks2 = case '\x500' of '\x500' -> True patternMatchingWorks3 = f '\x4ff' where f '\x4ff' = True patternMatchingWorks4 = f '\x500' where f '\x500' = True patternMatchingWorks5 = (\'\x4ff'->True) '\x4ff' patternMatchingWorks6 = (\'\x500'->True) '\x500' }}} and got the following output: {{{ Main> :load "M:\\haskell\\sources\\WinHugsPatternMatchingBug.hs" Main> patternMatchingWorks1 True Main> patternMatchingWorks2 Program error: pattern match failure: patternMatchingWorks2_v1621 '\1280' Main> patternMatchingWorks3 True Main> patternMatchingWorks4 Program error: pattern match failure: patternMatchingWorks4_v1623 '\1280' Main> patternMatchingWorks5 True Main> patternMatchingWorks6 Program error: pattern match failure: patternMatchingWorks6_v1627 '\1280' }}} i tested it with hugs.exe and winhugs.exe (September 2006 version, i.e. the most recent according to the download page) on Windows XP Professional, both give the same result, while ghc gives the correct result.[[BR]] Pattern matching seems to fail for all Chars with codepoint >0x4ff. i understand that Hugs doesn't fully support Unicode, but is this intended behaviour? If so, please mention it on the "Hugs Bugs & Features" page. -- Ticket URL: <http://hackage.haskell.org/trac/hugs/ticket/94> Hugs <http://www.haskell.org/hugs/> Hugs 98, an interpreter for Haskell

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