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Path: utzoo!utcsri!dalcs!silvert
From: silvert@dalcs.UUCP (Bill Silvert)
Newsgroups: net.unix
Subject: lex query: "Too many right contexts"
Message-ID: <1527@dalcs.UUCP>
Date: Fri, 21-Jun-85 16:20:06 EDT
Article-I.D.: dalcs.1527
Posted: Fri Jun 21 16:20:06 1985
Date-Received: Fri, 21-Jun-85 23:41:56 EDT
Organization: Marine Ecology Lab.
Lines: 18

Whenever I use a right context in a long lex program I get the message:
	(Error) Too man right contexts
And if I eliminate enought statements which do NOT have right contexts
it works.  Specifically, I am working on a cross-reference program for f77,
which has lines like:
	WRITE	;
to ignore reserved words, and I would like to recognize assignement statements
with lines such as:
	[A-Z][A-Z0-9]*/=	ECHO;
(It's a bit more complex than ECHO, actually), and I get the error message.
Can anyone shed light on how right contexts are treated?
I get an error even if there is only one right context, as in the example.
-- 
Bill Silvert
Marine Ecology Lab.
Dartmouth, NS
dalcs!silvert
dalcs!biomel!bill