public virtual IIntSet GetSetFromRule(TreeToNFAConverter nfabuilder, string ruleName) { Rule r = GetRule( ruleName ); if ( r == null ) { return null; } IIntSet elements = null; //[email protected]("parsed tree: "+r.tree.toStringTree()); elements = nfabuilder.SetRule( r.Tree ); //[email protected]("elements="+elements); return elements; }