package org.apache.lucene.analysis.snowball;

import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.analysis.standard.StandardFilter;
import org.apache.lucene.analysis.standard.StandardTokenizer;
import org.apache.lucene.analysis.*;

import java.io.File;
import java.io.IOException;
import java.io.Reader;
import java.util.Set;
/**
 * Filters {@link StandardTokenizer} with {@link StandardFilter}, {@link
 * LowerCaseFilter} and {@link StopFilter}, using a list of English stop words.
 *
 * @version $Id: StandardAnalyzer.java 472959 2006-11-09 16:21:50Z yonik $
 */
public class StandardAnalyzerWithoutAccents  extends StandardAnalyzer {
	private Set stopSet;

	  /** An array containing some common English words that are usually not
	  useful for searching. */
	  public static final String[] STOP_WORDS = StopAnalyzer.ENGLISH_STOP_WORDS;

	  /** Builds an analyzer with the default stop words ({@link #STOP_WORDS}). */
	  public StandardAnalyzerWithoutAccents() {
	    this(STOP_WORDS);
	  }

	  /** Builds an analyzer with the given stop words. */
	  public StandardAnalyzerWithoutAccents(Set stopWords) {
	    stopSet = stopWords;
	  }

	  /** Builds an analyzer with the given stop words. */
	  public StandardAnalyzerWithoutAccents(String[] stopWords) {
	    stopSet = StopFilter.makeStopSet(stopWords);
	  }

	  /** Builds an analyzer with the stop words from the given file.
	   * @see WordlistLoader#getWordSet(File)
	   */
	  public StandardAnalyzerWithoutAccents(File stopwords) throws IOException {
	    stopSet = WordlistLoader.getWordSet(stopwords);
	  }

	  /** Builds an analyzer with the stop words from the given reader.
	   * @see WordlistLoader#getWordSet(Reader)
	   */
	  public StandardAnalyzerWithoutAccents(Reader stopwords) throws IOException {
	    stopSet = WordlistLoader.getWordSet(stopwords);
	  }

	  /** Constructs a {@link StandardTokenizer} filtered by a {@link
	  StandardFilter}, a {@link LowerCaseFilter} and a {@link StopFilter}. */
	  public TokenStream tokenStream(String fieldName, Reader reader) {
	    TokenStream result = new StandardTokenizer(reader);
	    result = new StandardFilter(result);
	    result = new LowerCaseFilter(result);
	    result = new StopFilter(result, stopSet);
	    result = new  ISOLatin1AccentFilter(result);
	    return result;
	  }
}