Example #1
0
 protected Rule ltToRule(Tree lt) {
   if (lt.children().length == 1) {
     UnaryRule ur = new UnaryRule();
     ur.parent = stateNumberer.number(lt.label().value());
     ur.child = stateNumberer.number(lt.children()[0].label().value());
     return ur;
   } else {
     BinaryRule br = new BinaryRule();
     br.parent = stateNumberer.number(lt.label().value());
     br.leftChild = stateNumberer.number(lt.children()[0].label().value());
     br.rightChild = stateNumberer.number(lt.children()[1].label().value());
     return br;
   }
 }
Example #2
0
 protected void scanStates(Numberer source, Numberer target) {
   for (int i = 0; i < source.total(); i++) {
     String stateStr = (String) source.object(i);
     String projStr = projectString(stateStr);
     projection[i] = target.number(projStr);
   }
 }
Example #3
0
 protected Rule specifyRule(Rule rule, List history, int childDepth) {
   Rule r;
   String topHistoryStr = historyToString(history.subList(1, history.size()));
   String bottomHistoryStr = historyToString(history.subList(0, childDepth));
   if (rule instanceof UnaryRule) {
     UnaryRule ur = new UnaryRule();
     UnaryRule urule = (UnaryRule) rule;
     ur.parent = stateNumberer.number(stateNumberer.object(urule.parent) + topHistoryStr);
     if (isSynthetic(urule.child)) {
       ur.child = stateNumberer.number(stateNumberer.object(urule.child) + topHistoryStr);
     } else if (isTag(urule.child)) {
       ur.child = urule.child;
     } else {
       ur.child = stateNumberer.number(stateNumberer.object(urule.child) + bottomHistoryStr);
     }
     r = ur;
   } else {
     BinaryRule br = new BinaryRule();
     BinaryRule brule = (BinaryRule) rule;
     br.parent = stateNumberer.number(stateNumberer.object(brule.parent) + topHistoryStr);
     if (isSynthetic(brule.leftChild)) {
       br.leftChild = stateNumberer.number(stateNumberer.object(brule.leftChild) + topHistoryStr);
     } else if (isTag(brule.leftChild)) {
       br.leftChild = brule.leftChild;
     } else {
       br.leftChild =
           stateNumberer.number(stateNumberer.object(brule.leftChild) + bottomHistoryStr);
     }
     if (isSynthetic(brule.rightChild)) {
       br.rightChild =
           stateNumberer.number(stateNumberer.object(brule.rightChild) + topHistoryStr);
     } else if (isTag(brule.rightChild)) {
       br.rightChild = brule.rightChild;
     } else {
       br.rightChild =
           stateNumberer.number(stateNumberer.object(brule.rightChild) + bottomHistoryStr);
     }
     r = br;
   }
   return r;
 }
Example #4
0
 protected void tallyTree(Tree t, LinkedList<String> parents) {
   // traverse tree, building parent list
   String str = t.label().value();
   boolean strIsPassive = (str.indexOf('@') == -1);
   if (strIsPassive) {
     parents.addFirst(str);
   }
   if (!t.isLeaf()) {
     if (!t.children()[0].isLeaf()) {
       tallyInternalNode(t, parents);
       for (int c = 0; c < t.children().length; c++) {
         Tree child = t.children()[c];
         tallyTree(child, parents);
       }
     } else {
       tagNumberer.number(t.label().value());
     }
   }
   if (strIsPassive) {
     parents.removeFirst();
   }
 }