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From: kprateek88@yahoo.com (Prateek R Karandikar)
Newsgroups: comp.std.c++
Subject: Whitespace ambiguity in grammar
Date: Mon, 24 May 2004 19:02:31 +0000 (UTC)
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Xref: controlnews3.google.com comp.std.c++:454

When there are 2 consecutive elements of grammar, sometimes it is
intended that whitespace be required between them, someimes that there
be no whitespace between them, and sometimes that whitespace is
optional.
For ex,

1)
original-namespace-definition:
	namespace identifier { namespace-body }

Clearly, whitespace is required between namespace and identifier.

2)
decimal-literal:
	nonzero-digit
	decimal-literal digit
Clearly, it is required that there be no whitespace between
decimal-literal and digit.

3)

and-expression:
	equality-expression
	and-expression & equality-expression
Clearly, whitespace is optional on both sides of the &.

Isn't this inconsistent?

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
To iterate is human, to recurse divine.
-L. Peter Deutsch
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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