Hi everybody,
I am working on the Java 1.5 grammar provided by the antlr website. I need to
change the rule FloatingPointLiteral to a parser rule. If I change just the
name of the lexer rule to create a parser rule, I get some
RecognitionExceptions. I don't get why my grammar is not able anymore to
recognize floating point literals if I just change the lexer rule to a parser
rule.
floatingPointLiteral : (Number)+ POINT (Number)* Exponent?
FloatTypeSuffix? | POINT (Number)+ Exponent? FloatTypeSuffix? |
(Number)+ Exponent FloatTypeSuffix? | (Number)+ FloatTypeSuffix
;
If the name of the rule is FloatingPointLiteral it works, but if it's
floatingPointLiteral (parser rule), it doesn't work anymore.Could anyone
explain me what the problem is ? I guess the parser can't recognize the tokens
correctly, but it is strange because they are exactly the same ! In fact, I
would like to create an object to store the literal, that is why I wanted to
transform the lexer rule into a parser rule, to return my own object. Is this
possible (by this way or another) ?Thanks in advance.
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