1. W/o files, I can only guess that you're using a partially ported initdr. scm file that needs a relatively simple fix (commenting out a definition, adding an except-in somewhere).
2. Books in CS, like software, bit-rots. I consider EOPL3 a significant improvement over EOPL2. Also consider using Shriram's PLAI; it's the grandson of EOPL and supported by some Racket devs. -- Matthias On Oct 20, 2013, at 1:43 PM, Kurt Krebsbach wrote: > Hi, > > I’ve been using EOPL2 to teach Programming Languages for a dozen years now, > and am having a great deal of trouble just trying to use the legacy code like > define-datatype.scm, > sllgen.scm and the various early interpreters (e.g. 3-1.scm). I’m only > interested in about the first 100 pages > of the book, and have been so happy with how it has worked to have students > build the interpreter up through > chapter 3.6 that I have been reluctant to change to EOPL3e and use all of the > Racket syntax. I would much rather > stick with Scheme. Has anyone done anything similar, and give me advice on > how to easily continue using this code? > > Here is an example of a current problem I’m having: > > > Language: Pretty Big; memory limit: 128 MB. > > (load "initdr.scm") > Loading set-up-cmsc460.scm. > Requiring library pretty. > Requiring library trace.scm. > Requiring library macro.scm. > Requiring r5rs > Loading define-datatype.scm. > define-datatype.scm version J3 2001-08-26 10:18 > Loading sllgen.scm. > . c:/Documents and Settings\krebsbak\My > Documents\CS460\Code\sllgen.scm:1252:8: module: duplicate definition for > identifier in: sllgen:action-preference-list > > > Thank you! > > Kurt Krebsbach > Associate Professor of Computer Science > Lawrence University > Appleton, WI 54911 > > ____________________ > Racket Users list: > http://lists.racket-lang.org/users
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