[antlr-interest] literals in 2.7.6
Omry Yadan
omry at yadan.net
Thu Feb 8 06:57:17 PST 2007
Here is a simple example that demonstrate my problem:
class TestLexter extends Lexer;
protected CHAR : ('a'..'z' | 'A'..'Z');
RESERVED : "foo";
SYMBOL : CHAR (CHAR)* ;
Lets say foo is a reserved keywork and that SYMBOL can be any sequence
of chars.
obviously SYMBOL also matches "foo", so I get the following warning:
lexical nondeterminism between rules RESERVED and SYMBOL upon k==1:'f'
Increasing the k value (even to 4) does not help here.
any suggestion how to work around this warning?
I believe it has something to do with the
http://www.antlr.org/doc/lexer.html#Keywords_and_literals section in the
doc, but I didn't understand how to solve it from what's written there.
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