Hi ,
I not sure whether I wrote the tree grammer are right , so please take look and
give some comments please, that will help a lot.
here is a grammer to parse the java source .
fileDeclaration
: ( (annotations)? packageDeclaration )? (importDeclaration)*
(typeDeclaration)*
;
so i defined an imaginary token named FILEDEC and rewrite the tree grammer as
->^( FILEDEC ( (annotations)? packageDeclaration )? (importDeclaration)*
(typeDeclaration)* )
because all in the grammer are rules too. so I used an imaginary token here.
but this one below, there is a ',' can be the root of the subtree
expressionList
: expression (',' expression)*
;
so I rewrote the tree as this ,EXP is an imaginary token also
->^(EXP expression (','^ expression)* )
right ? or any better way ? I am really need you help
Thanks a lot
waitting online :)
BILL YUAN
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