Beispiel #1
0
  /**
   * Return information about the objects in this Tree.
   *
   * @param t The tree to examine.
   * @return A human-readable String
   */
  public static String toDebugStructureString(Tree t) {
    StringBuilder sb = new StringBuilder();
    String tCl = StringUtils.getShortClassName(t);
    String tfCl = StringUtils.getShortClassName(t.treeFactory());
    String lCl = StringUtils.getShortClassName(t.label());
    String lfCl = StringUtils.getShortClassName(t.label().labelFactory());
    Set<String> otherClasses = new HashSet<String>();
    for (Tree st : t) {
      String stCl = StringUtils.getShortClassName(st);
      String stfCl = StringUtils.getShortClassName(st.treeFactory());
      String slCl = StringUtils.getShortClassName(st.label());
      String slfCl = StringUtils.getShortClassName(st.label().labelFactory());

      if (!tCl.equals(stCl)) {
        otherClasses.add(stCl);
      }
      if (!tfCl.equals(stfCl)) {
        otherClasses.add(stfCl);
      }
      if (!lCl.equals(slCl)) {
        otherClasses.add(slCl);
      }
      if (!lfCl.equals(slfCl)) {
        otherClasses.add(slfCl);
      }
    }
    sb.append("Tree with root of class ").append(tCl).append(" and factory ").append(tfCl);
    sb.append(" with label class ").append(lCl).append(" and factory ").append(lfCl);
    if (!otherClasses.isEmpty()) {
      sb.append(" with the following classes also found within the tree: ").append(otherClasses);
    }
    return sb.toString();
  }
Beispiel #2
0
 public static Tree normalizeTree(Tree tree, TreeNormalizer tn, TreeFactory tf) {
   for (Tree node : tree) {
     if (node.isLeaf()) {
       node.label().setValue(tn.normalizeTerminal(node.label().value()));
     } else {
       node.label().setValue(tn.normalizeNonterminal(node.label().value()));
     }
   }
   return tn.normalizeWholeTree(tree, tf);
 }
Beispiel #3
0
  /**
   * returns a list of categories that is the path from Tree from to Tree to within Tree root. If
   * either from or to is not in root, returns null. Otherwise includes both from and to in the
   * list.
   */
  public static List<String> pathNodeToNode(Tree from, Tree to, Tree root) {
    List<Tree> fromPath = pathFromRoot(from, root);
    // System.out.println(treeListToCatList(fromPath));
    if (fromPath == null) return null;

    List<Tree> toPath = pathFromRoot(to, root);
    // System.out.println(treeListToCatList(toPath));
    if (toPath == null) return null;

    // System.out.println(treeListToCatList(fromPath));
    // System.out.println(treeListToCatList(toPath));

    int last = 0;
    int min = fromPath.size() <= toPath.size() ? fromPath.size() : toPath.size();

    Tree lastNode = null;
    //     while((! (fromPath.isEmpty() || toPath.isEmpty())) &&
    // fromPath.get(0).equals(toPath.get(0))) {
    //       lastNode = (Tree) fromPath.remove(0);
    //       toPath.remove(0);
    //     }
    while (last < min && fromPath.get(last).equals(toPath.get(last))) {
      lastNode = fromPath.get(last);
      last++;
    }

    // System.out.println(treeListToCatList(fromPath));
    // System.out.println(treeListToCatList(toPath));
    List<String> totalPath = new ArrayList<String>();

    for (int i = fromPath.size() - 1; i >= last; i--) {
      Tree t = fromPath.get(i);
      totalPath.add("up-" + t.label().value());
    }

    if (lastNode != null) totalPath.add("up-" + lastNode.label().value());

    for (Tree t : toPath) totalPath.add("down-" + t.label().value());

    //     for(ListIterator i = fromPath.listIterator(fromPath.size()); i.hasPrevious(); ){
    //       Tree t = (Tree) i.previous();
    //       totalPath.add("up-" + t.label().value());
    //     }

    //     if(lastNode != null)
    //     totalPath.add("up-" + lastNode.label().value());

    //     for(ListIterator j = toPath.listIterator(); j.hasNext(); ){
    //       Tree t = (Tree) j.next();
    //       totalPath.add("down-" + t.label().value());
    //     }

    return totalPath;
  }
Beispiel #4
0
 /**
  * returns the syntactic category of the tree as a list of the syntactic categories of the mother
  * and the daughters
  */
 public static List<String> localTreeAsCatList(Tree t) {
   List<String> l = new ArrayList<String>(t.children().length + 1);
   l.add(t.label().value());
   for (int i = 0; i < t.children().length; i++) {
     l.add(t.children()[i].label().value());
   }
   return l;
 }
Beispiel #5
0
 public static Tree copyHelper(Tree t, Map<Tree, Tree> newToOld, Map<Tree, Tree> oldToNew) {
   Tree[] kids = t.children();
   Tree[] newKids = new Tree[kids.length];
   for (int i = 0, n = kids.length; i < n; i++) {
     newKids[i] = copyHelper(kids[i], newToOld, oldToNew);
   }
   TreeFactory tf = t.treeFactory();
   if (kids.length == 0) {
     Tree newLeaf = tf.newLeaf(t.label());
     newToOld.put(newLeaf, t);
     oldToNew.put(newLeaf, t);
     return newLeaf;
   }
   Tree newNode = tf.newTreeNode(t.label(), Arrays.asList(newKids));
   newToOld.put(newNode, t);
   oldToNew.put(t, newNode);
   return newNode;
 }
Beispiel #6
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 private static void leafLabels(Tree t, List<Label> l) {
   if (t.isLeaf()) {
     l.add(t.label());
   } else {
     Tree[] kids = t.children();
     for (int j = 0, n = kids.length; j < n; j++) {
       leafLabels(kids[j], l);
     }
   }
 }
Beispiel #7
0
 private static void taggedLeafLabels(Tree t, List<CoreLabel> l) {
   if (t.isPreTerminal()) {
     CoreLabel fl = (CoreLabel) t.getChild(0).label();
     fl.set(TagLabelAnnotation.class, t.label());
     l.add(fl);
   } else {
     Tree[] kids = t.children();
     for (int j = 0, n = kids.length; j < n; j++) {
       taggedLeafLabels(kids[j], l);
     }
   }
 }
  public Tree transformTree(Tree tree) {
    TreeFactory tf = tree.treeFactory();
    String tag = tree.label().value();
    if (tree.isPreTerminal()) {
      String word = tree.firstChild().label().value();

      List<Tree> newPreterms = new ArrayList<>();
      for (int i = 0, size = word.length(); i < size; i++) {
        String singleCharLabel = new String(new char[] {word.charAt(i)});
        Tree newLeaf = tf.newLeaf(singleCharLabel);
        String suffix;
        if (useTwoCharTags) {
          if (word.length() == 1 || i == 0) {
            suffix = "_S";
          } else {
            suffix = "_M";
          }
        } else {
          if (word.length() == 1) {
            suffix = "_S";
          } else if (i == 0) {
            suffix = "_B";
          } else if (i == word.length() - 1) {
            suffix = "_E";
          } else {
            suffix = "_M";
          }
        }
        newPreterms.add(tf.newTreeNode(tag + suffix, Collections.<Tree>singletonList(newLeaf)));
      }
      return tf.newTreeNode(tag, newPreterms);
    } else {
      List<Tree> newChildren = new ArrayList<>();
      for (int i = 0; i < tree.children().length; i++) {
        Tree child = tree.children()[i];
        newChildren.add(transformTree(child));
      }
      return tf.newTreeNode(tag, newChildren);
    }
  }
Beispiel #9
0
 private static int treeToLatexHelper(
     Tree t, StringBuilder c, StringBuilder h, int n, int nextN, int indent) {
   StringBuilder sb = new StringBuilder();
   for (int i = 0; i < indent; i++) sb.append("  ");
   h.append('\n').append(sb);
   h.append("{\\")
       .append(t.isLeaf() ? "" : "n")
       .append("tnode{z")
       .append(n)
       .append("}{")
       .append(t.label())
       .append('}');
   if (!t.isLeaf()) {
     for (int k = 0; k < t.children().length; k++) {
       h.append(", ");
       c.append("\\nodeconnect{z").append(n).append("}{z").append(nextN).append("}\n");
       nextN = treeToLatexHelper(t.children()[k], c, h, nextN, nextN + 1, indent + 1);
     }
   }
   h.append('}');
   return nextN;
 }
Beispiel #10
0
 private static int treeToLatexEvenHelper(
     Tree t,
     StringBuilder c,
     StringBuilder h,
     int n,
     int nextN,
     int indent,
     int curDepth,
     int maxDepth) {
   StringBuilder sb = new StringBuilder();
   for (int i = 0; i < indent; i++) sb.append("  ");
   h.append('\n').append(sb);
   int tDepth = t.depth();
   if (tDepth == 0 && tDepth + curDepth < maxDepth) {
     for (int pad = 0; pad < maxDepth - tDepth - curDepth; pad++) {
       h.append("{\\ntnode{pad}{}, ");
     }
   }
   h.append("{\\ntnode{z").append(n).append("}{").append(t.label()).append('}');
   if (!t.isLeaf()) {
     for (int k = 0; k < t.children().length; k++) {
       h.append(", ");
       c.append("\\nodeconnect{z").append(n).append("}{z").append(nextN).append("}\n");
       nextN =
           treeToLatexEvenHelper(
               t.children()[k], c, h, nextN, nextN + 1, indent + 1, curDepth + 1, maxDepth);
     }
   }
   if (tDepth == 0 && tDepth + curDepth < maxDepth) {
     for (int pad = 0; pad < maxDepth - tDepth - curDepth; pad++) {
       h.append('}');
     }
   }
   h.append('}');
   return nextN;
 }