[antlr-interest] wildcard in tree grammar

Oliver Zeigermann oliver.zeigermann at gmail.com
Sun Nov 30 01:55:06 PST 2008


Great. Thanks!

Can we expect that in 3.2?

Oliver

2008/11/30 Terence Parr <parrt at cs.usfca.edu>:
> I agree. '.' as root should be ok.  I'll have to go back and make it context
> sensitive.  Right now, '.' can be a subtree as well.  it would mess up
> analysis.
> Ter
> On Nov 29, 2008, at 3:23 PM, Gavin Lambert wrote:
>
>> At 09:58 30/11/2008, Oliver Zeigermann wrote:
>> >Hmmm. Just checked that with the latest snapshot of ANTLR 3.2,
>> >but it really does not work, but it should, right? Why can "."
>> >not be a tree root?
>>
>> Yes, that's what Sam Harwell and myself were discussing earlier in this
>> thread; I think we agree that this should be considered as valid.
>>
>> (I gave a detailed description of how I think it should behave earlier on,
>> but the general idea was to make ANTLR parse the tree as if it were a "real"
>> tree rather than the "flat" tree that it's actually implemented as.)
>>
>
>


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