Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!know!samsung!usc!snorkelwacker!spdcc!esegue!compilers-sender
From: Donald.Lindsay@MATHOM.GANDALF.CS.CMU.EDU
Newsgroups: comp.compilers
Subject: Low-Rent Syntax
Keywords: parse,design
Message-ID: <1990Aug09.180536.18782@esegue.segue.boston.ma.us>
Date: 9 Aug 90 18:05:36 GMT
References: <25630@cs.yale.edu> <58091@lanl.gov> <1990Jul26.024449.1777@esegue.segue.boston.ma.us> <1990Jul27.034115.8747@esegue.segue.boston.ma.us>
Sender: compilers-sender@esegue.segue.boston.ma.us
Reply-To: Donald.Lindsay@MATHOM.GANDALF.CS.CMU.EDU
Organization: Carnegie-Mellon University, CS/RI
Lines: 20
Approved: compilers@esegue.segue.boston.ma.us

In article <1990Jul27.034115.8747@esegue.segue.boston.ma.us> 
	moss@cs.umass.edu (Eliot Moss) writes:
>Related to BEGIN/END blocks is the argument over whether the ";" that follows
>some statements should be a separator or a terminator...

>CLU was actually able to *eliminate* the ";" statement separator/terminator,
>through *very* careful syntax design (and maybe it required more than one
>token lookahead, too; I don't recall clearly).

The Icon language (Arizona) and the Turing language (Toronto) both
have "low rent" syntax - that is, the ";" is only needed (as a
separator) when one writes multiple statements on a single line.  In
all other cases, it can be omitted.

Is there now a "usual" way to implement this ?

Don		D.C.Lindsay
-- 
Send compilers articles to compilers@esegue.segue.boston.ma.us
{spdcc | ima | lotus| world}!esegue.  Meta-mail to compilers-request@esegue.