import edu.stanford.nlp.trees.TreeReader; //导入依赖的package包/类
/**
 * Read tree from a string
 * 
 * @param parseStr
 *            input tree in form a string
 * @return tree
 */
public Tree readTreeFromString(String parseStr) {
	// read in the input into a Tree data structure
	TreeReader treeReader = new PennTreeReader(new StringReader(parseStr),
			tree_factory);
	Tree inputTree = null;
	try {
		inputTree = treeReader.readTree();
		treeReader.close();
	} catch (IOException e) {
		e.printStackTrace();
	}
	return inputTree;
}
 

import edu.stanford.nlp.trees.TreeReader; //导入依赖的package包/类
public Tree getStanfordContituencyTree() {
    TreeFactory tf = new LabeledScoredTreeFactory();
    StringReader r = new StringReader(getParseText());
    TreeReader tr = new PennTreeReader(r, tf);
    try {
        return tr.readTree();
    } catch (IOException e) {
        throw new RuntimeException("Error: IOException should not be thrown by StringReader");
    }
}
 

import edu.stanford.nlp.trees.TreeReader; //导入依赖的package包/类
public TreeReader newTreeReader(Reader in) {
  final NegraPennTreeNormalizer tn = new NegraPennTreeNormalizer(tlp, nodeCleanup);
  if (treeNormalizerInsertNPinPP) {
    tn.setInsertNPinPP(true);
  }

  return new PennTreeReader(in, new LabeledScoredTreeFactory(new StringLabelFactory()), tn, new NegraPennTokenizer(in));
}
 

import edu.stanford.nlp.trees.TreeReader; //导入依赖的package包/类
public TreeReader newTreeReader(Reader in) {
  final NegraPennTreeNormalizer tn = new NegraPennTreeNormalizer(tlp, nodeCleanup);
  if (treeNormalizerInsertNPinPP)
    tn.setInsertNPinPP(true);

  return new PennTreeReader(in, new LabeledScoredTreeFactory(), tn, new NegraPennTokenizer(in));
}
 

import edu.stanford.nlp.trees.TreeReader; //导入依赖的package包/类
public TreeReader newTreeReader(Reader in) {
	return new PennTreeReader(in, new LabeledScoredTreeFactory());
}
 

import edu.stanford.nlp.trees.TreeReader; //导入依赖的package包/类
public TreeReader newTreeReader(Reader in) {
  return new PennTreeReader(in, new LabeledScoredTreeFactory(), new HebrewTreeNormalizer(),new PennTreebankTokenizer(in));
}