protected abstract Topology<T> top();
public abstract String toString();
+ public StringBuffer toString(StringBuffer sb) { sb.append(this); return sb; }
// Topology Thunks //////////////////////////////////////////////////////////////////////////////
// Subclasses //////////////////////////////////////////////////////////////////////////////
+ /** an atom which tracks the possible tokenset of some element, provided that element can only match single-token sequences */
public static class Infer<T extends Input> extends Atom<T> {
private final Element e;
public Infer(Element e) { this.e = e; }
public Topology<T> top() { return (Topology<T>)toAtom(e); }
- public String toString() { return e.toString(); /* FIXME should be toAtom() */ }
+ public String toString() { return e.toString(); }
}
+ /** an atom which tracks the inverse of some other atom */
public static class Invert<T extends Input> extends Atom<T> {
private final Atom<T> a;
public Invert(Atom<T> a) { this.a = a; }