Added underline capability to the header and footer.

git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@353648 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/poi/hssf/usermodel/HSSFFooter.java

@@ -212,5 +212,45 @@ public class HSSFFooter extends Object {
     public static String tab() {
 	return "&A";
     }
+
+    /**
+     * Returns the string representing the start underline
+     *
+     * @return The special string for start underline
+     */
+    public static String startUnderline()
+    {
+        return "&U";
+    }
+
+    /**
+     * Returns the string representing the end underline
+     *
+     * @return The special string for end underline
+     */
+    public static String endUnderline()
+    {
+        return "&U";
+    }
+
+    /**
+     * Returns the string representing the start double underline
+     *
+     * @return The special string for start double underline
+     */
+    public static String startDoubleUnderline()
+    {
+        return "&E";
+    }
+
+    /**
+     * Returns the string representing the end double underline
+     *
+     * @return The special string for end double underline
+     */
+    public static String endDoubleUnderline()
+    {
+        return "&E";
+    }
 }
 

src/java/org/apache/poi/hssf/usermodel/HSSFHeader.java

@@ -252,5 +252,45 @@ public class HSSFHeader
     {
         return "&A";
     }
+
+    /**
+     * Returns the string representing the start underline
+     *
+     * @return The special string for start underline
+     */
+    public static String startUnderline()
+    {
+        return "&U";
+    }
+
+    /**
+     * Returns the string representing the end underline
+     *
+     * @return The special string for end underline
+     */
+    public static String endUnderline()
+    {
+        return "&U";
+    }
+
+    /**
+     * Returns the string representing the start double underline
+     *
+     * @return The special string for start double underline
+     */
+    public static String startDoubleUnderline()
+    {
+        return "&E";
+    }
+
+    /**
+     * Returns the string representing the end double underline
+     *
+     * @return The special string for end double underline
+     */
+    public static String endDoubleUnderline()
+    {
+        return "&E";
+    }
 }