/*
 * *****************************************************
 * Copyright (c) 2005 IIM Lab. All  Rights Reserved.
 * Created by xuehao at Dec 1, 2005
 * Contact: zxuehao@mail.ustc.edu.cn
 * *****************************************************
 */
package org.indigo.db.fieldfilter;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class NewsStringFilter
{
    private static NewsStringFilter itsInstance=new NewsStringFilter();
    private NewsStringFilter()
    {
        
    }
    public static NewsStringFilter getInstance()
    {
        return itsInstance;
    }
    public String filter( String str )
    {
        String reText = "'";
        Pattern p = Pattern.compile( reText, Pattern.CASE_INSENSITIVE );
        Matcher m = null;
        m = p.matcher( str );
        str = m.replaceAll( "\"" );
        
        reText = "\"";
        p = Pattern.compile( reText, Pattern.CASE_INSENSITIVE );
        m = null;
        m = p.matcher( str );
        str = m.replaceAll( "\\\"" );
        
        return str;
    }
}