[antlr-interest] TokenStreamRewriteEngine: possible to use non-terminals instead of tokens?

[Terence Parr]

On Feb 4, 2004, at 11:01 AM, SainTiss wrote:

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> On Wednesday 04 February 2004 19:42, Terence Parr wrote:
>>
>> You need context info to trickle into typeSpec so that it knows when 
>> to
>> remove that token.  you can pass a parameter around or set a context
>> instance variable (ick).  Or, go the other way: just set an index in
>> typeSpec as to the index of the ID token.  Then later if you ever want
>> to delete it, you know the index.
>
> I think I get the idea of what you're saying here... Setting an index 
> in
> typeSpec intuitively seems the most elegant way to go to me, but is 
> there
> documentation available on how to accomplish this? I mean, I guess it's
> needed to add an attribute to typeSpec's class definition, which is 
> probably
> built-in to antlr?

There is no typeSpec.  Remember that antlr generates a method for each 
rule not a class, which is really icky...

just define an instance variable and set it with an action.

Ter
>
> Thanks,
>
> Hans
>
>
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