- Yhc - Haskell.org

Is this Project Still Active?
by Verbus Counts 01 May '15

01 May '15

?? Regards, Verbus M. Counts 405-326-7440 - Mobile

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Re: [Yhc] installation of haskell stopped software cure 14.09 from working through its own glut32.dll
by Neil Mitchell 18 Oct '14

18 Oct '14

Hi Stefan, What software were you installing? Note that both Yhc and Hugs are mostly dead. The recommended way to install Haskell is via the Haskell Platform https://www.haskell.org/platform/ Thanks, Neil On Saturday, 18 October 2014, Stefan Ludwig <dipl-ing.ludwig(a)web.de> wrote: > Hi, > > a software that claims hereself as purely functional should not cause > malfunctions in other software!!! > > after installing haskell it took me some hours to find out that haskells > glut32.dll created a conflict > with cura 14.09 and older versions > > DAMM IT!!! > > The haskell community is claiming to be high productive and secure. > I can't share this !! > > Hope the receiver of this message is forwarding to the responsible person > > best regards > > Stefan > >

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How do I re-subscribe this mailing list to annother e-mail address?
by li cheng 03 Nov '12

03 Nov '12

Hello! How do I re-subscribe this mailing list to annother e-mail address? Also - How do I set member options via email? Thanks! -- С уважением Михаил Поиск товаров <http://vigs.ru>

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YHC fork
by Andrew Oakley 16 May '12

16 May '12

In the interests of some program transformations that I want to try out I've decided it would be nice to get a YHC based compiler working again. I managed to get YHC working (although it's a bit of a hack, I haven't found a nice way to build the libraries), I can probably pull some patches together if they are wanted. I've noticed that much of the code is messy and have started to rewrite significant parts. On the other hand I think much of the compiler architecture and ideas in YHC (such as the specific language chosen for YHC Core) are worth keeping. I'd like to see some nice libraries for manipulating Core (I believe that was the intended direction anyway). Are there any parts of the compiler design that caused problems? Are there parts that were particularly good? I believe that I should be safe to release any derived works under GPLv3 (with some attribution), although it isn't entirely clear. Does anybody disagree? Thanks, I'll post an update here when I've got some code to share. [Aside: I think messy code is expected, especially in old code like the bits from nhc, or code that has features added over time - please don't be offended!] -- Andrew Oakley

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is YHC dead?
by Szymon Jachim 07 Apr '11

07 Apr '11

Hello, Is YHC compiler project still alive? Where do I get real most up-to-date sources? darcs get --partial http://darcs.haskell.org/york-compiler98/ (or maybe) darcs get --partial http://www.cs.york.ac.uk/fp/darcs/yhc/ And what should I use to build it? I think wiki at haskell.org is very outdated. Thanks. Regards, Szymon

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Re: [Yhc] Help me for haskel problem please
by Neil Mitchell 06 Dec '10

06 Dec '10

Hi, For homework help I suggest you read http://haskell.org/haskellwiki/Homework_help and follow the links listed there. Thanks, Neil 2010/12/5 Suresh <vai.csse(a)gmail.com>: > Dear Sir, > > My be this question will be funny for you but I am new in Haskel and > got only few lection and now I have to solve the question as test. Please > let me know about suitable api for this question. We have wrong code and > there is some test. Have to find out needed or suitable api and using these > we have to pass all the test. But still I am so poor on Haskel. Please give > me your good idea and material for this question. IF possible please give > some example to solve this problem. > > module Grammar where > > import Data.Set (Set) > import qualified Data.Set as Set > import Prelude hiding (Int) > > import Test.HUnit > > data Term = Int Integer > | Atom String > | Var String > | Pair (Term, Term) > | Tuple [Term] > > data Expr = Term Term > | Fun [Term] [Expr] > | Apply Expr [Expr] > | Assign Term Expr > > boundVariables :: Expr -> Set String > boundVariables _ = Set.empty > fromList:: Map X Y -> [(X, Y)] > > freeVariables :: Expr -> Set String > freeVariables _ = Set.empty > > tests = > let bv = boundVariables > fv = freeVariables > -- e0 := 'fun () -> ok end' > e0 = Fun [] [Term (Atom "ok")] > -- e1 := 'foo' > e1 = Term (Atom "foo") > -- e2 := 'fun (X, Y) -> F(X) end' > e2 = Fun [Var "X", Var "Y"] > [Apply (Term (Var "F")) [Term (Var "X")]] > -- e3 := 'fun (true) -> F = fun (X) -> Mul(X, X) end, Add(F(X), 10) > end' > e3 = Fun [Atom "true"] [ > Assign (Var "F") > (Fun [Var "X"] [ > Apply (Term (Var "Mul")) [ > Term (Var "X"), > Term (Var "X") > ] > ]), > Apply (Term (Var "Add")) [ > Apply (Term (Var "F")) [ > Term (Var "X") > ], > Term (Int 10) > ] > ] > -- e4 := 'fun () -> F(X), F = G end' > e4 = Fun [] [ > Apply (Term (Var "F")) [ > Term (Var "X") > ], > Assign (Var "F") (Term (Var "G")) > ] > -- e5 := 'fun () -> F = G, F(X) end' > e5 = Fun [] [ > Assign (Var "F") (Term (Var "G")), > Apply (Term (Var "F")) [ > Term (Var "X") > ] > ] in > runTestTT (test [ > bv e1 ~=? Set.empty > , fv e1 ~=? Set.empty > , bv e2 ~=? Set.fromList ["X", "Y"] > , fv e2 ~=? Set.fromList ["F"] > , bv e3 ~=? Set.fromList ["X", "F"] > , fv e3 ~=? Set.fromList ["Mul", "Add", "X"] > , bv e4 ~=? Set.fromList ["F"] > , fv e4 ~=? Set.fromList ["F", "G", "X"] > , bv e5 ~=? Set.fromList ["F"] > , fv e5 ~=? Set.fromList ["G", "X"] > ]) > > > > > Best regards > Suresh

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Re: Haskell: YHC: compiler errors
by Neil Mitchell 21 Apr '10

21 Apr '10

Hi Gwern, I'd say abandoned prototype at this stage. I no longer work on Yhc, no longer have a working copy, and don't have permission to push patches. I wouldn't bother going to any effort cleaning it up, unless you want to maintain/improve it in the long run. That said, when I last used it, it certainly did parse case expressions/lambdas! It was basically Haskell 98 plus a couple of extensions, but not that much of the base library. I've no idea if you broke something in your cleanup, or if something else got broken before you got to it. Thanks, Neil On Mon, Mar 8, 2010 at 10:09 PM, Gwern Branwen <gwern0(a)gmail.com> wrote: > re: bin/yhc/src/compiler98/ > > I was trying to remove the haskell98 dep, but after I had apparently > gotten rid of most, I began running into all sorts of odd syntax > errors - missing \ in lambdas, = in case expressions, list syntax in > type sigs - that I've begun to wonder if that is a real compiler or an > abandoned prototype or something. > > -- > gwern >

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Building yhc SConstruct file missing
by Philipp Forsthuber 09 Mar '10

09 Mar '10

Hi @All, a colleague of mine and I are writing our Master Thesis. Our goal is to write a Haskell To Javascript Compiler. Now we have found that yhc already at least has some sort of JavaScript backend, and we wanted to take a closer look at all this. So we installed darcs, checked out the repository and tried to build it. But when we want to execute Scons to build the code the process fails because the SConstruct file is missing. Does anybody know how to get around this? Or are we just failing because we have to have anything else installed to build the sources? Any help would be greatly appreciated! cheers Philipp P.S.: If anybody happens to know anotcher Haskell to Javascript backend, an email would also be really helpful. Thanks again!

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YHC snapshot
by Ian Graves 16 Feb '10

16 Feb '10

Hello all, I was recently looking for a snapshot of YHC, and I wasn't able to find anything on haskell.org. It appears that the darcs repositories have been taken down. I understand the project has become dormant, but I am interested to see how some parts of it were put together, namely the Javascript back end. It might be right in front of my face and I'm missing it, but could somebody point me to a snapshot somewhere if one still exists? Thanks! Ian

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Trouble building yhc on Mac OS X Leopard / x86
by Jared Updike 22 Oct '09

22 Oct '09

I did scons It crashed about some .h x86/ffi/darwin. So I did scons fullclean scons depends and it got much further (I presume...) but now it says libgmp must be install and gmp.h made accessible before you can compile Yhc which is odd since I installed them with MacPorts, in /opt/local/lib and /opt/local/include; they are there, and Sconstruct has those paths in the lines: env.Append(CPPPATH=["/usr/local/include", "/opt/local/include", "/Library/Frameworks/GMP.Framework/Headers"]) env.Append(LIBPATH=["/usr/local/lib", "/opt/local/lib", "/Library/Frameworks/GMP.Framework"]) so I was puzzled where to go next... Just wanting to play with Yhc on my Mac... Any help wouyld be appreciated. Thanks, Jared.

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