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November 2001

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Hugs for Macintosh 2001/11/19
by Hans Aberg 19 Nov '01

19 Nov '01

I made an update to the version that I and Pablo Azero used to develop; it is at http://www.matematik.su.se/~haberg/Computer/Hugs98Feb2001MacBin20011119.sit The sources I used to compile these, using Metrowerks CodeWarrior Pro 5 are at http://www.matematik.su.se/~haberg/Computer/Hugs98Feb2001MacSrc20011119.sit If somebody is willing to put this stuff up elsewhere, please let me know. It differs from the 2001/10/12 version in that the :e command now works as it used to do in the Mac versions building on the kernels before the hugs98-Feb2001 kernel. (I merely removed the extra quotes that this kernel inserts in machdep.c, startEdit(); see the Mac sources.) Hans Aberg * Email: Hans Aberg <mailto:haberg@member.ams.org> * Home Page: <http://www.matematik.su.se/~haberg/> * AMS member listing: <http://www.ams.org/cml/>

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Code for hugs and ghc
by Till Doerges 18 Nov '01

18 Nov '01

Hi there, hugs and ghc understand much the same, but a few (often subtle) differences remain. Since I'd be interested in developing code for both, I'm looking for a way to directly take care of these differences in my code. Ghc offers a commandline option '-cpp' which will allow for '#ifdef' and other preprocessor directives. When testing it, it worked ok. Hugs seems to offer a similar feature '-F<cmd>'. When testing it, however, it did not work. 'cpp' seems to be called, but it seems to leave characters in the code that can't be dealt w/ by hugs. Moreover, it seems to called on every input file (i.e. the prelude). --- snip --- till@atlan:~/tmp> hugs -Fcpp gammel.hs __ __ __ __ ____ ___ _________________________________________ || || || || || || ||__ Hugs 98: Based on the Haskell 98 standard ||___|| ||__|| ||__|| __|| Copyright (c) 1994-1999 ||---|| ___|| World Wide Web: http://haskell.org/hugs || || Report bugs to: hugs-bugs(a)haskell.org || || Version: February 2000 _________________________________________ Haskell 98 mode: Restart with command line option -98 to enable extensions Reading file "/usr/local/share/hugs/lib/Prelude.hs": Parsing ERROR "/usr/local/share/hugs/lib/Prelude.hs" (line 1): Syntax error in input (unexpected symbol "#") FATAL ERROR: Unable to load prelude --- snap --- When trying to remove the '#' etc. left in the code by giving '-P' to cpp it still doesn't work. --- snip hackcpp.sh --- cpp -P -D__HUGS__ $1 --- snap hackcpp.sh --- Here's what happens now: --- snip --- till@atlan:~/tmp> hugs -Fhackcpp.sh gammel.hs __ __ __ __ ____ ___ _________________________________________ || || || || || || ||__ Hugs 98: Based on the Haskell 98 standard ||___|| ||__|| ||__|| __|| Copyright (c) 1994-1999 ||---|| ___|| World Wide Web: http://haskell.org/hugs || || Report bugs to: hugs-bugs(a)haskell.org || || Version: February 2000 _________________________________________ Haskell 98 mode: Restart with command line option -98 to enable extensions Reading file "/usr/local/share/hugs/lib/Prelude.hs": Parsing/usr/local/share/hugs/lib/Prelude.hs:289:22: missing terminating ' character /usr/local/share/hugs/lib/Prelude.hs:290:28: missing terminating ' character /usr/local/share/hugs/lib/Prelude.hs:335:58: missing terminating ' character /usr/local/share/hugs/lib/Prelude.hs:357:63: missing terminating ' character /usr/local/share/hugs/lib/Prelude.hs:358:29: missing terminating ' character /usr/local/share/hugs/lib/Prelude.hs:361:63: missing terminating ' character /usr/local/share/hugs/lib/Prelude.hs:489:17: missing terminating ' character ERROR "/usr/local/share/hugs/lib/Prelude.hs" (line 207): Syntax error in expression (unexpected `=') FATAL ERROR: Unable to load prelude --- snap --- My question now is, whether there is a decent (and comfortable) way of dealing w/ this issue or whether I will have to preprocess the files myself manually? Thanks -- Till -- e-mail: reverse(net dot doerges at till) | ENCRYPTED | pgp/gpg: keys via keyserver or my homepage | MAIL IS | www: http://www.doerges.net | WELCOME! |

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