diff --git a/plugin/src/main/java/org/onosproject/yangutils/utils/UtilConstants.java b/plugin/src/main/java/org/onosproject/yangutils/utils/UtilConstants.java
index 2dca607..c098e20 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/utils/UtilConstants.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/utils/UtilConstants.java
@@ -644,6 +644,16 @@
     public static final String SPLIT_STRING = "split";
 
     /**
+     * Static attribute for Pattern.
+     */
+    public static final String PATTERN = "Pattern";
+
+    /**
+     * Static attribute for Quote.
+     */
+    public static final String QUOTE_STRING = "quote";
+
+    /**
      * Static attribute for from syntax.
      */
     public static final String FROM_STRING_METHOD_NAME = "fromString";
@@ -689,6 +699,11 @@
     public static final String IF = "if";
 
     /**
+     * Static attribute for else-if.
+     */
+    public static final String ELSE_IF = "else if";
+
+    /**
      * Static attribute for of.
      */
     public static final String OF = "of";
@@ -1359,6 +1374,11 @@
     public static final String COLLECTION_IMPORTS = "java.util";
 
     /**
+     * Static attribute for regex.
+     */
+    public static final String REGEX_IMPORTS = "java.util.regex";
+
+    /**
      * Static attribute for map.
      */
     public static final String MAP = "Map";