[antlr-interest] How does the two rules differ in a tree parser ?

[Terence Parr]

On Jul 9, 2005, at 11:47 PM, Subhobroto Sinha wrote:
>
> In a treeparser, what does this mean (in english, verbosely if  
> possible):
>
> declarator : #(varName : ID {std::cout<<"\n variable name : " <<  
> varName->getText();} (fixedArraySize)*) ;

It means match a tree with ID at the root and zero or more children  
whose structure is specified by fixedArraySize.
> and why does it behave differently from :
>
> declarator : varName : ID {std::cout<<"\n variable name : " <<  
> varName->getText();} (fixedArraySize)* ;

Because the first one is a 2D structure with ID at the root.

Ter
--
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