Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site water.UUCP
Path: utzoo!watmath!watnot!water!rggoebel
From: rggoebel@water.UUCP (Randy Goebel LPAIG)
Newsgroups: net.lang.prolog
Subject: Event handling in Prolog
Message-ID: <586@water.UUCP>
Date: Tue, 28-May-85 10:57:41 EDT
Article-I.D.: water.586
Posted: Tue May 28 10:57:41 1985
Date-Received: Thu, 30-May-85 00:38:48 EDT
Distribution: net
Organization: U of Waterloo, Ontario
Lines: 19

Who has considered the problem of providing user predicates for the
handling of events (e.g., interrupt, various i/o and arithmetic exceptions)?

Waterloo Prolog (Roberts, 1977) had a built-in predicate ERROR which could be
used to provide one's own interrupt routine, e.g.,

	ERROR <-  ...user code ...

Has anyone considered the problem more deeply?  From a programming viewpoint?
From a logical viewpoint?

Randy Goebel
Logic Programming and Artificial Intelligence Group
Computer Science Department
University of Waterloo
Waterloo, Ontario, CANADA N2L 3G1
UUCP:	{decvax,ihnp4,allegra}!watmath!water!rggoebel
CSNET:	rggoebel%water@waterloo.csnet
ARPA:	rggoebel%water%waterloo.csnet@csnet-relay.arpa