[antlr-interest] Bug? Invalid Java code generated

[Sam Barnett-Cormack]

Jim Idle wrote:
> Sam Barnett-Cormack wrote:
>> Jim Idle wrote:
>>> Sam Barnett-Cormack wrote:
>>>> Hi all
>>>>
>>>> The attached grammar (which you're probably all tired of) generates 
>>>> Java code with an error in. I've checked, and the error isn't in a 
>>>> copy action or predicate - it's in the expansion of $text in a 
>>>> parser predicate. I don't know if I've used $text incorrectly,
>>> Here is a hint. $text of what? This is a parser rule not a lexer rule.
>> "The Definitive ANTLR Reference", Terence Parr, p130: Figure 6.2, 
>> Predefined Parser Rule Attributes:
>>
>> "Attribute: text
>> Type: String
>> Description: The text matched from the start of the rule up until the 
>> point of the $text expression evaluation..."
>>
> Oh, well you obviously already know everything already then.

All I'm saying is that the docs say it can be used in a parser rule. And 
that I know what its value should be. There's no need to assume I've 
done something stupid, which certainly seems to be the case when you 
suggest that using $text there isn't valid, or is problematic in some 
way, without elaborating, especially when the docs say it can be used.

-- 
Sam Barnett-Cormack