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- Path: sparky!uunet!pipex!bnr.co.uk!uknet!bhamcs!axs
- From: axs@cs.bham.ac.uk (Aaron Sloman)
- Newsgroups: comp.lang.pop
- Subject: Re: List and Vector Syntax (long)
- Message-ID: <C07Bop.DwH@cs.bham.ac.uk>
- Date: 2 Jan 93 00:50:49 GMT
- References: <116670035@otter.hpl.hp.com> <116670041@otter.hpl.hp.com>
- Sender: news@cs.bham.ac.uk
- Organization: School of Computer Science, University of Birmingham, UK
- Lines: 40
- Nntp-Posting-Host: emotsun
-
- Having considered Steve Knight's responses to my criticisms of
- the Pepper proposals for changing the quotation conventions in
- Pop-11 I now accept that those proposals are workable and probably
- preferable to the current Pop-11 conventions, given the use of "\"
- as a reserved text item to get over the difficulties I described.
-
- I have not thought through the implications of using "\" in this
- role, nor whether this is consistent with its use as the standard
- `alphabeticiser' as in "don\'t" which should create a word
- containing an apostrophe.
-
- Of course all the proposed changes will prove so painful to the
- existing Pop-11 users that many of them will want to go on using the
- old version (just as many refuse to switch to using lexical
- variables: they like the non-lexical defaults: witness the new
- book by Chris Thorton and Ben du Boulay "Artificial Intelligence
- Through Search" which uses Pop-11 and Prolog throughout, and so
- far I've not found a single "lvars" in it!).
-
- So the "pop" community will inevitably be further fragmented once an
- implementation of Pepper becomes available.
-
- A new "standard" won't have the same effect as with C, where
- everyone (or almost everyone) agreed to a new version because people
- trying to produce portable software in C were already suffering from
- the incompatibilities between differen versions produced by
- different vendors. There's no such pressure for a new standard for
- Pop.
-
- Perhaps pressure will be created by producing an implementation
- of Pepper that runs on very popular machines where Poplog Pop-11 is
- not available, i.e. PCs running MSDOS and Macs !!!!
-
- Aaron
- ---
- --
- Aaron Sloman, School of Computer Science,
- The University of Birmingham, B15 2TT, England
- EMAIL A.Sloman@cs.bham.ac.uk OR A.Sloman@bham.ac.uk
- Phone: +44-(0)21-414-3711 Fax: +44-(0)21-414-4281
-