Path: utzoo!attcan!uunet!husc6!spdcc!ima!haddock!karl
From: karl@haddock.ISC.COM (Karl Heuer)
Newsgroups: comp.std.c
Subject: Re: Why trigraphs? What happened to the DIgraphs?
Summary: What digraphs?
Message-ID: <4599@haddock.ISC.COM>
Date: 17 Jun 88 14:44:29 GMT
References: <19345@watmath.waterloo.edu> <1302@ark.cs.vu.nl>
Reply-To: karl@haddock.ima.isc.com (Karl Heuer)
Organization: Interactive Systems, Boston
Lines: 13

In article <1302@ark.cs.vu.nl> maart@cs.vu.nl (Maarten Litmaath) writes:
>Why use trigraphs if digraphs are available?
>	[ = .(
>	] = .)

Sorry, but ".)" is already a valid sequence in C code:  x=cos(1.)
The trigraphs have the property that no existing code contains them outside of
comments and strings.

If you're going to followup with an improved proposal, please note that there
are nine characters ( #[\]^{|}~ ) to be handled.

Karl W. Z. Heuer (ima!haddock!karl or karl@haddock.isc.com), The Walking Lint