www.pudn.com > 2_15692.zip > CodeFilter.java

package news.util; 
import java.io.*; 
 
public class CodeFilter{ 
	  public CodeFilter() {} 
	  public static String change(String s) { 
		  s = toHtml(s); 
		  return s; 
	  } 
 
	//ÌØÊâ×Ö·ûתΪHtml 
	public static String toHtml(String s) { 
    s = Replace(s,"&","&"); 
    s = Replace(s,"<","<"); 
    s = Replace(s,">",">"); 
    s = Replace(s,"\t","    "); 
    s = Replace(s,"\r\n","\n"); 
    s = Replace(s,"\n","
"); 
    s = Replace(s,"  ","  "); 
    s = Replace(s,"'","'"); 
    s = Replace(s,"\\","\"); 
    return s; 
    } 
	//Äæ 
    public static String unHtml(String s){	 
	s = Replace(s,"
","\n"); 
	s = Replace(s," "," "); 
	return s; 
  	} 
  
  //Replace 
   public static String Replace(String source,String oldString,String newString) { 
    if(source == null) return null; 
    StringBuffer output = new StringBuffer(); 
    int lengOfsource = source.length(); 
    int lengOfold = oldString.length(); 
    int posStart = 0; 
    int pos; 
    while((pos = source.indexOf(oldString,posStart)) >= 0) { 
      output.append(source.substring(posStart,pos)); 
      output.append(newString); 
      posStart = pos + lengOfold; 
    } 
    if(posStart < lengOfsource) { 
      output.append(source.substring(posStart)); 
    } 
    return output.toString(); 
  } 
 
}