slightly more standard data merge: Symtax.merge (K true) avoids equality on abstract type Pretty.T and gracefully accepts overriding, Symtab.join prefers first entry as usual;
package GraphBrowser;
import java.util.Vector;
class Directory {
TreeNode node;
String name;
Vector collapsed;
public Directory(TreeNode nd,String n,Vector col) {
collapsed=col;
name=n;
node=nd;
}
public TreeNode getNode() { return node; }
public String getName() { return name; }
public Vector getCollapsed() { return collapsed; }
}