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- Path: sparky!uunet!stanford.edu!agate!anarres.CS.Berkeley.EDU!bh
- From: bh@anarres.CS.Berkeley.EDU (Brian Harvey)
- Newsgroups: comp.lang.scheme
- Subject: Re: wots going on here!?
- Date: 29 Aug 1992 16:01:32 GMT
- Organization: University of California at Berkeley
- Lines: 20
- Message-ID: <17o70sINNi2e@agate.berkeley.edu>
- References: <1992Aug29.092113.12007@lugb.latrobe.edu.au> <JINX.92Aug29101908@chamarti.ai.mit.edu>
- NNTP-Posting-Host: anarres.cs.berkeley.edu
-
- jinx@zurich.ai.mit.edu writes:
- > [...]
- >Since the error occurred at apply time, not at eval time, there is no
- >environment defined, and the system is telling you that.
- >
- >Since there is no environment associated with the error, the system
- >must choose one to give you in the new read-eval-print loop (REPL)
- >that it will create (the one with the error prompt). The system is
- >telling you that it is using the environment of the "surrounding" REPL.
- > [...]
-
- You know, I have to agree with the original poster that this is not the
- sort of thing one would wish to present to a beginner. Remember, you're
- on page 184 before you learn what an "environment" is. Meanwhile all
- that argle-bargle is pretty intimidating.
-
- Other versions of Scheme manage to be less intimidating. That's one of
- the advantages of Chez Scheme. TI Scheme is pretty intimidating by
- default but you can turn off the intimidation and I always do so in the
- init files I give students.
-