import java.util.*;
/** if ambiguity checking is enabled, this exception is thrown to signal that the parse was ambiguous */
-public class Ambiguous extends RuntimeException {
+public class Ambiguous extends Exception {
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 "/*"at " + ambiguity.getLocation() + ":"*/);
- for(Tree<?> result : ambiguity.expand(false))
- sb.append("\n\n" + result.toPrettyString());
+ sb.append("unresolved ambiguity ");
+ for(Tree<?> result : ambiguity.expand(false)) {
+ sb.append("\n\n");
+ result.toPrettyString(sb);
+ }
return sb.toString();
}
}