package org.apache.commons.lang;
import java.io.IOException;
import java.io.StringWriter;
import java.io.Writer;
public class StringEscapeUtils {
public static String unescapeHtml(String str) {
if (str == null) {
return null;
}
try {
StringWriter writer = new StringWriter ((int)(str.length() * 1.5));
unescapeHtml(writer, str);
return writer.toString();
} catch (IOException e) {
//assert false;
//should be impossible
e.printStackTrace();
return null;
}
}
public static void unescapeHtml(Writer writer, String string) throws IOException {
if (writer == null ) {
throw new IllegalArgumentException ("The Writer must not be null.");
}
if (string == null) {
return;
}
Entities.HTML40.unescape(writer, string);
}
}