[antlr-interest] Mixing Grammars

[Bogdan Mitu]

--- Niall Gormley <ngormley at hotmail.com> wrote:
> Hi,
> 
> As part of a translation project I am working I wish to create an AST of
> the 
> target language, by transforming the source AST, using multiple tree 
> grammars and user interaction.
> 
> Is it possible to mix grammars in a TreeParser, to allow node creation of 
> the target language?

Yes, but the treeParser needs to know what are the tokens of the target
language. You can do this by declaring the new tokens that are introduced in
the tokens section of the treeParser. And if you use a series of
treeParsers, each needs to know the tokens introduced by previous
treeParsers. You can do this by making good use of importVocab/exportVocab
options in each treeParser.

Bogdan

> Has anyone got a good example of how they achieved this type of
> translation 
> in practice.


 
> Thanks for your help,
> Niall
> 
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