confirmed. let me check.
Ter
On Jul 1, 2011, at 3:48 PM, Trevor John Thompson wrote:
> java -jar /Users/Local/antlr-master-3.4-beta3-completejar.jar Empty.g
> javac -cp /Users/Local/antlr-master-3.4-beta3-completejar.jar EmptyParser.java
> EmptyParser.java:167: exception org.antlr.runtime.RecognitionException is
> never thrown in body of corresponding try statement
> catch (RecognitionException re) {
> ^
> 1 error
>
> Likewise "beta4".
> TJ
>
> On 2011 Jul 1, at 15:35, Terence Parr wrote:
>
>> should be a beta3 or seomthing there.
>> T
>> On Jul 1, 2011, at 3:34 PM, Trevor John Thompson wrote:
>>
>>> Presuming that "latest beta" is antlr-3.4rc2-complete.jar, i get:
>>>
>>> java -jar /Users/Local/antlr-3.4rc2-complete.jar Empty.g
>>> javac -cp /Users/Local/antlr-3.4rc2-complete.jar EmptyParser.java
>>> EmptyParser.java:167: exception org.antlr.runtime.RecognitionException is
>>> never thrown in body of corresponding try statement
>>> catch (RecognitionException re) {
>>> ^
>>> 1 error
>>>
>>> On 2011 Jul 1, at 15:12, Terence Parr wrote:
>>>
>>>> i fixed this in latest beta for 3.4...can you try that?
>>>> Ter
>>>> On Jul 1, 2011, at 3:10 PM, Trevor John Thompson wrote:
>>>>
>>>>> I have a grammar in which i wish to create an imaginary AST node, and
>>>>> then have an action treat that node. The most straightforward expression
>>>>> i have devised is:
>>>>> grammar Empty;
>>>>> options {output=AST;}
>>>>> tokens {Imaginary;}
>>>>> @members {void treat(Object t){}}
>>>>>
>>>>> parse: empty EOF! {treat($empty.tree);};
>>>>> empty: ->^(Imaginary);
>>>>>
>>>>> However, the generated EmptyParser.java fails to compile because empty()
>>>>> catches RecognitionException, which is never thrown.
>>>>>
>>>>> I am working around this by:
>>>>> empty: ->^(Imaginary)|Imaginary;
>>>>> which works because the imaginary token can never be produced by the
>>>>> lexer.
>>>>>
>>>>> Is there some other way i should be going about this?
>>>>> --
>>>>> Trevor John Thompson (425) 246-4023
>>>>> net: [email protected]
>>>>> Quidquid Latine scriptum sit, altum videtur.
>
>
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