/** if ambiguity checking is enabled, this exception is thrown to signal that the parse was ambiguous */
public class Ambiguous extends Exception {
- public final Forest<?> ambiguity;
- public Ambiguous(Forest<?> ambiguity) { this.ambiguity = ambiguity; }
+ public final Forest ambiguity;
+ public Ambiguous(Forest ambiguity) {
+ this.ambiguity = ambiguity;
+ }
public String toString() {
// FEATURE: more legible printout desperately needed
StringBuffer sb = new StringBuffer();
sb.append("unresolved ambiguity ");
- for(Tree<?> result : ambiguity.expand(false)) {
+ HashSet<Forest> hf = new HashSet<Forest>();
+ ambiguity.gather(hf);
+ HashSet<Tree> ht = new HashSet<Tree>();
+ ambiguity.expand(ht, hf, new Tree(null, "...", null, false));
+ for(Tree<?> result : ht) {
sb.append("\n\n");
result.toPrettyString(sb);
}