Re: [groovy-dev] groovy for IDEA custom language API

Jeremy, why not do as Zohar just says, and use Groovy's AST? Its got a 
visitor ready for you...

On 2 Mar 2005, at 17:25, Jeremy Rayner wrote:
>> Looking at the eclipse work and talking to Franck, I suggest there is 
>> no
>> need to write any parser or lexer ( these are provided by groovy )
>> Just do as the eclipse code does and use the AST generated by the 
>> groovy
>> compiler to generate the PSI . The groovy AST supports visitors
>> which should make it simple to do....
>
> Antlr supports tree-walkers, which provide more context than a simple 
> visitor
>   http://www.antlr.org/article/1100569809276/use.tree.grammars.tml
>
> The Studman grammar (which our groovy.g is based upon) also comes with
> a java.tree.g,
>   http://www.antlr.org/grammar/1090713067533/index.html
>
> Loring Craymer has even suggested a way of automatically creating a 
> tree-walker
> given a grammar file (i.e. groovy.g --autogen--> groovy.tree.g )
> (Loring: maybe we could get an early copy of this code  )
>
>   http://www.antlr.org/workshop/ANTLR2004/proceedings/ANTLRTrees.pdf
>
> I suggest we use the techniques above to create a groovy.tree.g, that
> can be used as
> a basis for creating PSI nodes.  I'd love to help Dierk...
>
> jez.
> -- 
> http://javanicus.com/blog2
>
>

James
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