On 07/04/10 10:50, Stephen Tetley wrote:
You don't need HDirect for this.
I've attached an early revision of Wolfram Kahl's code that I download years ago - this is a plain Haskell version rather than a literate file you should find it easier to use.
The file itself seems to have disappeared from the web, though maybe it is findable through the Wayback machine.
Thanks Stephen; however, when I tried with your interpret.hs, I got the same error I got with: http://www.cas.mcmaster.ca/~kahl/FP/2003/Interpreter.lhs that is: ={============ cut here ============== ~/prog_dev/haskell/modular-interpreter $ hugs -98 +o Interpreter.hs __ __ __ __ ____ ___ _________________________________________ || || || || || || ||__ Hugs 98: Based on the Haskell 98 standard ||___|| ||__|| ||__|| __|| Copyright (c) 1994-2005 ||---|| ___|| World Wide Web: http://haskell.org/hugs || || Bugs: http://hackage.haskell.org/trac/hugs || || Version: September 2006 _________________________________________ Hugs mode: Restart with command line option +98 for Haskell 98 mode ERROR "Interpreter.hs" - Can't find imported module "FiniteMaps" Hugs> =}============ cut here ============== The only reason I though hdirect was needed was because it has a FiniteMaps module. Hmm...I looked more closely and it has a FiniteMap module. Where do can I get this FiniteMaps module? TIA. -Larry